CN103050805B - Connector - Google Patents

Abstract

The invention provides a connector, wherein the clamping state of a first reinforcement metal member and a second reinforcement metal member is maintained, the conduction state of the first reinforcement metal member and the second reinforcement metal member is maintained reliably, the embedding connection of the first reinforcement metal member and the second reinforcement metal member is reliably maintained reliably, and the reliability is enhanced. The connector is provided with the first reinforcement metal member and the second reinforcement metal member, the second reinforcement metal member includes a second main body portion extended at the width direction of a second housing and a pair of second side plates extending at the length direction of the second housing, the first reinforcement metal member includes a first main body portion extended at the width direction of a first housing and a pair of first side plates extending at the length direction of the first housing, and a contact arm portion which is respectively connected with the first main body portion and the first side plate portion, the contact arm portion includes an upper bending portion, a lower bending portion, a connection arm portion and a flexible exertion portion, and the bent convex surface of the lower bending portion is pressed towards the second main body portion and the second side plates of the second reinforcement metal member.

Description

Connector

Technical field

The present invention relates to a kind of connector.

Background technology

Current, in order to be electrically connected between the circuit substrate of pair of parallel, use substrate to connectors such as board connectors.This connector be arranged on respectively respect to one another of a pair of circuit substrate upper, chimeric and conducting each other.In addition, proposed following technology, that is, made to be arranged on the effect of the reinforced metal part performance locking component at both ends, to and the other side's side-connector between chimerism keep (for example,, with reference to patent documentation 1).

Figure 14 A, Figure 14 B are the stereograms that represents the reinforced metal part of existing connector.

In Figure 14 B, 851 are mounted in the 1st reinforced metal part on the length direction both ends of housing of the 1st connector, the 1st connector is arranged on the 1st not shown circuit substrate, in Figure 14 A, 951 are mounted in the 2nd reinforced metal part on the length direction both ends of housing of the 2nd connector, and the 2nd connector is arranged on the 2nd not shown circuit substrate.

Aforementioned the 1st reinforced metal part 851 is by metallic plate being carried out to the parts that the processing such as stamping-out, bending are integrally formed, and has: tabular main part 852, and its Width along the 1st connector extends; Base plate for fixing connecting portion 856, extend to the length direction of the 1st connector at its two ends from this main part 852, and solder is on the 1st circuit substrate; Side snap-latch piece 858, extend upward its end from each substrate connecting portion 856; Side engaging recessed part 858a, it is formed on the surface of this side snap-latch piece 858; Bending central snap-latch piece 854, it is connected with the centre of aforementioned body portion 852; And as the engaging edge 854a of central authorities of the front-end edge of this central authorities' snap-latch piece 854.

In addition, aforementioned the 2nd reinforced metal part 951 is by metallic plate being carried out to the parts that the processing such as stamping-out, bending are integrally formed, and has: tabular main part 952, and its Width along the 2nd connector extends; Base plate for fixing connecting portion 956, its two ends lower edge from this main part 952 extends to the Width of the 1st connector, and solder is on the 2nd circuit substrate; Side snap-latch piece 958, it is formed on the both sides shoulder of main part 952; Side engaging protuberance 958a, it is formed on the lateral margin of this side snap-latch piece 958; Bending central snap-latch piece 954, it is connected with the centre of aforementioned body portion 952; And the engaging protuberance 954a of central authorities, it is formed on the surface of this central authorities' snap-latch piece 954.

And if by chimeric to the 1st connector and the 2nd connector, side snap-latch piece 958 and the central snap-latch piece 954 of the side snap-latch piece 858 of the 1st reinforced metal part 851 and central snap-latch piece 854 and the 2nd reinforced metal part 951 engage with each other.Specifically, the side engaging recessed part 858a of the 1st reinforced metal part 851 and central authorities engagings edge 854a engages protuberance 958a and centrally engage protuberance 954a and engage with each other with the side of the 2nd reinforced metal part 951.Thus, the 1st connector and the 2nd connector locking, its chimerism is maintained.In addition, when chimeric, the some states reversing up and down with illustrated attitude that becomes in the 1st reinforced metal part 851 or the 2nd reinforced metal part 951, thus engage with the reinforced metal part of the other side's side.

In addition, because the 1st reinforced metal part 851 and the 2nd reinforced metal part 951 contact with each other and conducting, so by advance the substrate connecting portion 856 of the 1st reinforced metal part 851 being connected with the power line of the 1st circuit substrate, the substrate connecting portion 956 of the 2nd reinforced metal part 951 is connected with the power line of the 2nd circuit substrate, thereby the power line of the 1st circuit substrate and the power line of the 2nd circuit substrate are electrically connected via the 1st reinforced metal part 851 and the 2nd reinforced metal part 951.

Patent documentation 1: TOHKEMY 2010-198996 communique

Summary of the invention

[problem that the present invention is to be solved]

But in aforementioned existing connector, side snap-latch piece 958 and the central snap-latch piece 954 of the side snap-latch piece 858 of the 1st reinforced metal part 851 and central snap-latch piece 854 or the 2nd reinforced metal part 951 do not have sufficient flexibility.Therefore, if the vibration or the impact that produce pass over, occur sometimes that conducting between the 1st reinforced metal part 851 and the 2nd reinforced metal part 951 is temporarily cut off, i.e. this phenomenon of so-called hit in the time that electronic equipment that the 1st circuit substrate and the 2nd circuit substrate are installed etc. drops or bears external force.

In addition, the side engaging recessed part 858a of the 1st reinforced metal part 851 and central authorities engagings edge 854a engages contact-making surface between protuberance 958a and the engaging protuberance 954a of central authorities with the side of the 2nd reinforced metal part 951 actively narrow, so the contact resistance change between the 1st reinforced metal part 851 and the 2nd reinforced metal part 951 greatly.Therefore,, if flow super-high-current between the power line of the 1st circuit substrate and the power line of the 2nd circuit substrate, likely make the 1st reinforced metal part 851 and the 2nd reinforced metal part 951 generate heat and become high temperature.

The object of the invention is to solve the problem of aforementioned existing connector, the connector that a kind of reliability is high is provided, it is by giving high flexibility to the contact arm of the 1st reinforced metal part, and guarantee larger contact area, thereby can maintain reliably the fastening state between the 1st reinforced metal part and the 2nd reinforced metal part, in addition, can maintain reliably the conducting state between the 1st reinforced metal part and the 2nd reinforced metal part, keep reliably chimeric between the 1st connector and the 2nd connector.

For the means of dealing with problems

, in connector of the present invention, comprising for this reason: the 1st connector, it has the 1st terminal and the 1st housing, and the 1st housing is included in the 1st chimeric guide portion of the length direction two ends formation of the 1st housing; And the 2nd connector, it has the 2nd terminal and the 2nd housing, the 2nd terminal and aforementioned the 1st termination contact, the 2nd housing is included in the 2nd chimeric guide portion chimeric with aforementioned the 1st chimeric guide portion of the length direction two ends formation of the 2nd housing, in aforementioned the 1st chimeric guide portion and the 2nd chimeric guide portion, be separately installed with the 1st reinforced metal part and the 2nd reinforced metal part, the 2nd reinforced metal part comprises: the 2nd main part, and it extends on the Width of aforementioned the 2nd housing; And a pair of the 2nd side plate, they are connected with the two ends of the 2nd main part respectively, on the length direction of aforementioned the 2nd housing, extend, and aforementioned the 1st reinforced metal part comprises: the 1st main part, it extends on the Width of aforementioned the 1st housing; A pair of the 1st side plate, they are connected with the two ends of the 1st main part respectively, on the length direction of aforementioned the 1st housing, extend; And contact arm, being connected with aforementioned the 1st main part and the 1st side plate respectively, this contact arm comprises separately: top bend; Below bend; Arm portions, it connects aforementioned top bend and below bend; And flexible performance portion, it reduces the width dimensions of at least a portion of aforementioned top bend and arm portions, and the bending convex surface of aforementioned below bend is pressed to the 2nd main part of aforementioned the 2nd reinforced metal part and the surface of the 2nd side plate.

In other connector of the present invention, aforementioned the 1st reinforced metal part also comprises substrate connecting portion, one end of aforesaid base plate connecting portion is connected with the conducting wire of substrate, the other end of aforesaid base plate connecting portion is connected with aforementioned the 1st main part and the 1st side plate respectively, while observation from the chimeric surface side of aforementioned the 1st connector, this substrate connecting portion other end is separately connected with aforementioned the 1st main part and the 1st side plate respectively in the position identical with each aforementioned contact arm.

In other connector of the present invention, aforementioned contact arm is formed by banded plate member, the bending convex surface of aforementioned below bend extends on the Width of aforementioned panels parts, contacts with the 2nd main part of aforementioned the 2nd reinforced metal part and the surface line of the 2nd side plate.

In other connector of the present invention, the flexibility performance portion of the contact arm being connected with aforementioned the 1st side plate is formed on the lateral margin of at least a portion of aforementioned top bend and arm portions, and the width dimensions of at least a portion of aforementioned top bend and arm portions is reduced along with close aforementioned below bend.

In other connector of the present invention, the top bend of contact arm and the width of arm portions that are connected with aforementioned the 1st main part are wider than top bend and the arm portions of the contact arm being connected with aforementioned the 1st side plate, bring into play larger pressing force.

In other connector of the present invention, the flexibility performance portion of the contact arm being connected with aforementioned the 1st main part is formed on the Width centre of at least a portion of aforementioned top bend and arm portions, and flexible performance portion is the elongated open of the slit-shaped of extending on the length direction of aforementioned contact arm.

In other connector of the present invention, start with the position that the surface of the 2nd main part of aforementioned the 2nd reinforced metal part starts to contact from the bending convex surface of the below bend that is connected to the contact arm aforementioned the 1st main part, the extremely distance till the chimeric surface of aforementioned the 1st connector, the bending convex surface that is different from the below bend from being connected to the contact arm aforementioned the 1st side plate starts with the position that the surface of the 2nd side plate of aforementioned the 2nd reinforced metal part starts to contact, extremely the distance till the chimeric surface of aforementioned the 1st connector.

Invention effect

According to the present invention, in connector, give high flexibility to the contact arm of the 1st reinforced metal part, and guarantee larger contact area.Thus, can maintain reliably the fastening state between the 1st reinforced metal part and the 2nd reinforced metal part, and, the conducting state between the 1st reinforced metal part and the 2nd reinforced metal part can be maintained reliably, keep reliably chimeric between the 1st connector and the 2nd connector, improve reliability.

brief description of the drawings

Fig. 1 is the stereogram of the 1st connector in the 1st execution mode of the present invention, that is, and and the figure observing from chimeric surface side.

Fig. 2 A to Fig. 2 D is the four sides view of the 1st connector in the 1st execution mode of the present invention, and Fig. 2 A is vertical view, and Fig. 2 B is end view, and Fig. 2 C is upward view, and Fig. 2 D is front view.

Fig. 3 A, Fig. 3 B are the stereograms of the 1st reinforced metal part in the 1st execution mode of the present invention, and Fig. 3 A is the figure observing from oblique front upper place, and Fig. 3 B is the figure observing from oblique back upper place.

Fig. 4 is the stereogram of the 2nd connector in the 1st execution mode of the present invention, is the figure observing from chimeric surface side.

Fig. 5 A to Fig. 5 D is the four sides view of the 2nd connector in the 1st execution mode of the present invention, and Fig. 5 A is vertical view, and Fig. 5 B is end view, and Fig. 5 C is upward view, and Fig. 5 D is front view.

Fig. 6 A, Fig. 6 B are the stereograms of the 2nd reinforced metal part in the 1st execution mode of the present invention, and Fig. 6 A is the figure observing from oblique front upper place, and Fig. 6 B is the figure observing from oblique back upper place.

Fig. 7 A to Fig. 7 C is the 1st connector and the 2nd connector three-face view of chimeric state each other illustrating in the 1st execution mode of the present invention, and Fig. 7 A is vertical view, and Fig. 7 B is end view, and Fig. 7 C is front view.

Fig. 8 be the 1st connector in the 1st execution mode of the present invention and the 2nd connector each other chimeric state want portion's profile, be the A portion sectional side view in Fig. 7 B.

Fig. 9 be the 1st connector in the 1st execution mode of the present invention and the 2nd connector each other chimeric state want portion's profile, be that B-B in Fig. 7 A is to pseudosection.

Figure 10 be the 1st connector in the 1st execution mode of the present invention and the 2nd connector each other chimeric state want portion's profile, be that C-C in Fig. 7 A is to pseudosection.

Figure 11 A, Figure 11 B represent that the 1st connector in the 1st execution mode of the present invention and the 2nd connector are each other under chimeric state, the stereogram of the relation between the 1st reinforced metal part and the 2nd reinforced metal part, Figure 11 A is the figure observing from oblique front upper place of the 1st reinforced metal part, and Figure 11 B is the figure observing from oblique back upper place of the 1st reinforced metal part.

Figure 12 is the stereogram of the 2nd connector in the 2nd execution mode of the present invention, is the figure observing from chimeric surface side.

Figure 13 is the stereogram of the 2nd reinforced metal part in the 2nd execution mode of the present invention.

Figure 14 A, Figure 14 B are the stereograms that the reinforced metal part of existing connector is shown.

Description of reference numerals

1 the 1st connector

11 the 1st housings

12,122a recess

12a, 113 concave parts

13 the 1st protuberances

14 side wall portions

Chamber inside 15a the 1st terminal accommodating

Chamber outside 15b the 1st terminal accommodating

21 the 1st protrude end

21a upper surface

21b sidewall extension

21c end wall

22 jag recesses

26 the 1st metalworks keep recess

26a outboard end resettlement section

26b side contact arm is accommodated peristome

26c central substrate connecting portion is accommodated peristome

26d central authorities contact arm is accommodated peristome

51,851 the 1st reinforced metal parts

52 the 1st main parts

54 the 1st central authorities' contact arms

54a, 58a below bend

The flexible performance of 54b, 58b portion

54c, 58c arm portions

54d, 58d top bend

55 the 1st central substrate connecting portions

56 the 1st side substrate connecting portions

57 the 1st side plates

57a the 1st locking hook portion

58 the 1st side contact arms

61 the 1st terminals

62,162 afterbodys

63,163 maintained portions

64 downside connecting portions

65,165 the 1st contact sites

66,166 the 2nd contact sites

67 upside connecting portions

101 the 2nd connectors

111 the 2nd housings

112 the 2nd protuberances

115 the 2nd terminal accommodating chambeies

122 the 2nd protrude end

126 the 2nd metalworks keep recess

151,951 the 2nd reinforced metal parts

152 the 2nd main parts

154 the 2nd central authorities' contact arms

154a cardinal extremity bend

The bending arm of 154c

154d front end bend

156 the 2nd side substrate connecting portions

157 the 2nd side plates

157a the 2nd locking hook portion

158 the 2nd side contact arms

158a side contact recess

161 the 2nd terminals

164 connecting portions

165a the 1st contact recess

166a the 2nd contact recess

852,952 main parts

854,954 central snap-latch pieces

854a central authorities engaging edge

856,956 substrate connecting portions

858,958 side snap-latch pieces

858a side engaging recessed part

954a central authorities engaging protuberance

958a side engaging protuberance v

Embodiment

Below, with reference to accompanying drawing, embodiments of the present invention are elaborated.

Fig. 1 is the stereogram of the 1st connector in the 1st execution mode of the present invention,, the figure observing from chimeric surface side, Fig. 2 A to Fig. 2 D is the four sides view of the 1st connector in the 1st execution mode of the present invention, and Fig. 3 A, Fig. 3 B are the stereograms of the 1st reinforced metal part in the 1st execution mode of the present invention.In addition, in Fig. 2 A to Fig. 2 D, Fig. 2 A is vertical view, and Fig. 2 B is end view, and Fig. 2 C is upward view, and Fig. 2 D is front view, and in Fig. 3 A, Fig. 3 B, Fig. 3 A is the figure observing from oblique front upper place, and Fig. 3 B is the figure observing from oblique back upper place.

In the drawings, the 1st, the connector in present embodiment i.e. one of them the 1st connector to board connector as a pair of substrate, be mounted in the lip-deep smt connector as the 1st not shown substrate of installing component, chimeric each other with the 2nd connector 101 as the other side's side-connector described later.In addition, the 2nd connector 101 is that the connector in present embodiment is a pair of substrate to another in board connector, is mounted in the lip-deep smt connector as the 2nd not shown substrate of installing component.

Connector in present embodiment, typical case, is called as substrate to board connector, comprises aforementioned the 1st connector 1 and the 2nd connector 101, with the 1st substrate and the electrical connection of the 2nd substrate as substrate.In addition, aforementioned the 1st substrate and the 2nd substrate are for example the middle tellite using, flexible flat cable (FFC:Flexible Flat Cable), the flexible electric circuit boards (FPC:FlexiblePrinted Circuit) etc. such as electronic equipment, can be also the substrates of any kind.

In addition, in the present embodiment, for the structure of the each several part to connector and action describe and the expression that the directions such as up, down, left, right, before and after are shown that uses, it is not absolute probability, but relative concept, each several part at aforementioned connector is appropriate in diagram attitude, but in the situation that its attitude changes, should change accordingly, explain with the variation of attitude.

And aforementioned the 1st connector 1 has the 1st housing 11 as connector body being integrally formed by insulating properties materials such as synthetic resin.The 1st housing 11 as shown in the figure, has roughly the i.e. shape of rectangular thick plate-like roughly of cuboid, embeds side, i.e. upside in chimeric surface side (Fig. 2 B) at the 2nd connector 101), there is the roughly rectangular recess 12 being surrounded around.Aforementioned the 1st connector 1 has for example longitudinal about 8.0[mm], horizontal about 2.5[mm] and the about 0.8[mm of thickness] size, but size can suitably change.And, in aforementioned recess 12, form the 1st protuberance 13 as lug boss with the 1st housing 11, in addition, form at both sides and the 1st housing 11 of aforementioned the 1st protuberance 13 side wall portion 14 extending abreast with the 1st protuberance 13.

In this case, aforementioned the 1st protuberance 13 and side wall portion 14 protrude upward from the bottom surface of recess 12, extend along the length direction of the 1st housing 11.Thus, in the both sides of aforementioned the 1st protuberance 13, as a part for recess 12, the elongated recess that extends along the length direction of the 1st housing 11, concave part 12a is formed between the 1st protuberance 13 and side wall portion 14.In addition, in illustrated example, aforementioned the 1st protuberance 13 is one, but can be also multiple, and its quantity can be arbitrarily.In addition, aforementioned the 1st protuberance 13 for example has the about 0.4[mm of width] size, but size can suitably change.

On the side of the both sides of aforementioned the 1st protuberance 13, be formed with chamber 15a inside the 1st terminal accommodating of groove shape here.In addition, on the inner side surface of aforementioned lateral wall portion 14, be formed with chamber 15b outside the 1st terminal accommodating of groove shape.And, inside aforementioned the 1st terminal accommodating, outside chamber 15a and the 1st terminal accommodating, chamber 15b links also integrated each other at the bottom surface place of concave part 12a, therefore, the in the situation that outside chamber 15a and the 1st terminal accommodating inside the 1st terminal accommodating, 15b unification in chamber describing, describe as the 1st terminal accommodating chamber 15.

The 1st terminal accommodating chamber 15 in the both sides of the 1st protuberance 13 with for example about 0.2[mm] spacing be respectively formed with 15.And, be housed in the 1st terminal 61 in each the 1st terminal accommodating chamber 15 also in the both sides of the 1st protuberance 13, with for example about 0.2[mm] spacing respectively dispose 15.In addition, the spacing in aforementioned the 1st terminal accommodating chamber 15 and number can suitably change.

Aforementioned the 1st terminal 61 is by conductive metal plate being carried out to the parts that the processing such as stamping-out, bending are integrally formed, having: maintained portion 63; Afterbody 62, it is connected with the lower end of this maintained portion 63; Upside connecting portion 67, it is connected with the upper end of aforementioned maintained portion 63; The 2nd contact site 66, it is formed near the inner of this upside connecting portion 67; Downside connecting portion 64, it is connected with the 2nd contact site 66; And the 1st contact site 65, it is formed near the free end of this downside connecting portion 64.

And aforementioned maintained portion 63 is along the vertical direction, the thickness direction of the 1st housing 11 extends, be embedded in outside aforementioned the 1st terminal accommodating in the 15b of chamber and the part being maintained.In addition, aforementioned afterbody 62 is bending and connect with respect to maintained portion 63, at left and right directions, extend laterally on the Width of the 1st housing 11, is connected to and the conducting wire of the 1st substrate links is connected on pad by solder etc.In addition,, for aforementioned conducting wire, typical case, is holding wire.In addition, aforementioned upside connecting portion 67 is bending and connection with respect to maintained portion 63, on the Width of the 1st housing 11, extends to the inside.

On the inner of aforementioned upside connecting portion 67, be formed with the 2nd bending contact site 66, the 2 contact sites 66 bending downwards, and protrude to the inside on the Width of the 1st housing 11.In addition, aforementioned downside connecting portion 64 is parts of the side view with U-shaped that is connected with the lower end of aforementioned the 2nd contact site 66.At the free end of aforementioned downside connecting portion 64, be formed with the 1st bending contact site 65, the 1 contact sites 65 with U-shaped bending near the upper end of aforementioned inner side, and protrude laterally on the Width of the 1st housing 11.

Aforementioned the 1st terminal 61 is by being embedded in the 1st terminal accommodating chamber 15 from installed surface side (downside Fig. 2 B), by the sidewall of chamber 15b outside the 1st terminal accommodating being formed on the side of inner side of side wall portion 14 from sandwich maintained portion 63, thereby be fixed on the 1st housing 11.Under this state, that is, be packed under the state in the 1st housing 11 at the 1st terminal 61, aforementioned the 1st contact site 65 and the 2nd contact site 66 are positioned at the left and right sides of concave part 12a, toward each other.

In addition, the 1st terminal 61 is by metallic plate being processed to the parts that are integrally formed, so have elasticity to a certain degree.And known according to its shape, the 1st contact site 65 toward each other and the interval of the 2nd contact site 66 can Flexible changes.,, if insert the 2nd terminal 161 described later that the 2nd connector 101 has between the 1st contact site 65 and the 2nd contact site 66, make thus the interval of the 1st contact site 65 and the 2nd contact site 66 flexibly extend.

In addition, on the length direction two ends of aforementioned the 1st housing 11, dispose separately as the 1st of the 1st chimeric guide portion and protrude end 21.Protrude on end 21 as the part of aforementioned recess 12 and be formed with jag recess 22 the each the 1st.This jag recess 22 is rectangular recesses roughly, is connected with the length direction two ends of each concave part 12a.And under the 1st connector 1 and the chimeric state of the 2nd connector 101, aforementioned jag recess 22 the described later the 2nd protrudes the insertion recess inserting end 122 and works as what make that the 2nd connector 101 has.

And the aforementioned the 1st protrudes end 21 has: sidewall extension 21b, extend along the length direction of the 1st housing 11 at its length direction two ends from side wall portion 14; And end wall 21c, its short side direction along the 1st housing 11 extends, and two ends are connected with sidewall extension 21b.Protrude in end 21 the each the 1st, end wall 21c and the sidewall extension 21b being connected with its two ends form the sidewall of continuous " コ " word shape, mark off roughly three sides of rectangular jag recess 22.

And, on aforementioned the 1st protrusion end 21, the 1st reinforced metal part 51 as reinforced metal part is installed.The 1st reinforced metal part 51 is accommodated and is remained on and is formed in the 1st the 1st metalwork maintenance recess 26 protruding on end 21.The 1st metalwork keeps recess 26 to observe and be continuous " コ " word shape from chimeric surface side (upside Fig. 2 B), to protrude the upper surface 21a opening of end 21 the 1st, and the slit-shaped space of extending, thickness direction below from from this upper surface 21a to the 1st housing 11.

In the present embodiment, the 1st reinforced metal part 51 is by metallic plate being carried out to the parts that the processing such as stamping-out, bending are integrally formed, and has: the 1st main part 52 of elongated, belt-shaped, and its Width along the 1st housing 11 extends; The 1st side plate 57, it is bending and is connected with the two ends, left and right of the 1st main part 52, along the length direction extension of the 1st housing 11; As the 1st side substrate connecting portion 56 of substrate connecting portion, it is connected with the lower end of the 1st side plate 57; As the 1st side contact arm 58 of contact arm, it is connected with the upside of aforementioned the 1st side plate 57; As the 1st central substrate connecting portion 55 of substrate connecting portion, it is connected with the central lower end of aforementioned the 1st main part 52; And contacting arm 54 as the 1st central authorities of contact arm, it is connected with the central upper end of aforementioned the 1st main part 52.

Aforementioned the 1st main part 52 and the 1st side plate 57 being connected with the two ends, left and right of the 1st main part 52, while observation from chimeric surface side, be a body component of continuous " コ " word shape, be formed with the 1st locking hook 57a of portion of concaveconvex shape at the free end of the 1st side plate 57.In addition, the 1st side substrate connecting portion 56 is the plate-shaped members that extend on the same face with aforementioned the 1st side plate 57, and its lower end is connected on the contact pad linking with the conducting wire of the 1st substrate by solder etc.In addition,, for aforementioned conducting wire, typical case, is power line.

In addition, the 1st side contact arm 58 is connected with the upper end of the 1st side plate 57 directly over the 1st side substrate connecting portion 56., the 1st side contact arm 58 and the 1st side substrate connecting portion 56 are connected with the 1st side plate 57 at same position roughly in the time observing from chimeric surface side.And, bending band-like plate parts the 1st side contact arm 58 along with the cardinal extremity from being connected with the 1st side plate 57 is near front end and bending in the following manner,, gradually inside the Width of the 1st housing 11, then gradually towards installed surface direction (lower direction), gradually towards the Width outside of the 1st housing 11, final subsequently, the oblique installed surface direction of free end (lower direction), and outside the Width of the 1st housing 11.That is, the 1st side contact arm 58 is divided into substantially: top bend 58d, and its one end is connected with the upper end of the 1st side plate 57, and has bending convex surface upward; The arm portions 58c of substantially planar, its upper end is connected with the other end of this top bend 58d, tiltedly extends below to side direction in the Width of the 1st housing 11; And below bend 58a, its upper end is connected with the lower end of this arm portions 58c, and has the bending convex surface of side direction in the Width of the 1st housing 11.

And this below bend 58a is as under the 1st connector 1 and the chimeric state of the 2nd connector 101, the 1st metalwork contact site that aftermentioned the 2nd reinforced metal part 151 having with the 2nd connector 101 contacts works.In addition, aforementioned arm portions 58c, in the chimeric operation of the 1st connector 1 and the 2nd connector 101, works as the 1st metalwork guide portion that aforementioned the 2nd reinforced metal part 151 is guided.In addition, aforementioned arm portions 58c and top bend 58d work as the flexible spring portion of strain flexibly, can make below bend 58a flexible, flexibly carry out displacement, thus, bend 58a in below can maintain contacting between the 2nd reinforced metal part 151 reliably.

In addition, bending band-like plate parts the 1st side contact arm 58 as shown in Fig. 2 A is clear and definite, be formed as along with from the cardinal extremity being connected with the 1st side plate 57 near front end, its width dimensions reduces gradually.Specifically, arm portions 58c and above form the flexible performance 58b of portion near on the lateral margin of the 1st main part 52 in bend 58d, aforementioned lateral margin tilts thus.Like this, owing to forming the flexible performance 58b of portion, the width dimensions of arm portions 58c and top bend 58d is along with reducing near below bend 58a, so the flexibility of arm portions 58c and top bend 58d is high, below bend 58a can flexibly carry out displacement thus.

In addition, the 1st central substrate connecting portion 55 is banded plate member, and its cardinal extremity and aforementioned the 1st side plate 57 extend on the same face, and its free end is with the mode bending in the length direction outside towards the 1st housing 11.And aforementioned free-ended lower end is connected to and being connected on pad that the conducting wire of the 1st substrate links by solder etc.In addition,, for aforementioned conducting wire, typical case, is power line.

And the 1st central authorities' contact arm 54 is connected with the upper end of the 1st main part 52 directly over the 1st central substrate connecting portion 55.When, the 1st central authorities contacts arm 54 is observed from chimeric surface side with the 1st central substrate connecting portion 55, be connected with the 1st main part 52 at same position roughly.Bending band-like plate parts the 1st central authorities' contact arm 54 along with the cardinal extremity from being connected with the 1st main part 52 is near front end and bending in the following manner,, gradually inside the length direction of the 1st housing 11, then gradually towards installed surface direction (lower direction), subsequently gradually outside the length direction of the 1st housing 11, finally, the oblique installed surface direction of free end (lower direction), and outside the length direction of the 1st housing 11.That is, the 1st central authorities' contact arm 54 is divided into substantially: top bend 54d, and its one end is connected with the upper end of the 1st main part 52, and has bending convex surface upward; The arm portions 54c of substantially planar, its upper end is connected with the other end of this top bend 54d, tiltedly extends below to side direction in the length direction of the 1st housing 11; And below bend 54a, its upper end is connected with the lower end of this arm portions 54c, and has the bending convex surface of side direction in the length direction of the 1st housing 11.

This below bend 54a is as under the 1st connector 1 and the chimeric state of the 2nd connector 101, and the 1st metalwork contact site that the 2nd reinforced metal part 151 having with the 2nd connector 101 contacts works.In addition, aforementioned arm portions 54c, in the chimeric operation of the 1st connector 1 and the 2nd connector 101, works as the 1st metalwork guide portion that aforementioned the 2nd reinforced metal part 151 is guided.In addition, aforementioned arm portions 54c and top bend 54d work as the flexible spring portion of strain flexibly, can make below bend 54a flexible, flexibly carry out displacement, thus, bend 54a in below can maintain contacting between the 2nd reinforced metal part 151 reliably.

In addition, bending band-like plate parts i.e. the 1st central authorities' contact arm 54 are formed as, and at the cardinal extremity from being connected with the 1st main part 52, to the middle part office till front end, its width dimensions reduces.Specifically, arm portions 54c and above the Width centre of bend 54d be formed with the flexible performance 54b of portion.This flexibility performance 54b of portion is the elongated open that contacts the slit-shaped of extending on the length direction of arm 54 in the 1st central authorities, is formed as running through the 1st central authorities' contact arm 54 in thickness of slab direction.Like this, at the part place that is formed with the flexible performance 54b of portion, the width dimensions of the arm portions 54c working as flexible spring portion and top bend 54d substantially reduces, so the flexibility of arm portions 54c and top bend 54d is high, below bend 54a can flexibly carry out displacement thus.

Aforementioned the 1st metalwork keeps recess 26 to have: the outboard end resettlement section 26a of continuous groove shape, it is at the thickness direction of the 1st housing 11, and in the direction of the central shaft along " コ " word shape sidewall, extend, should be formed with the sidewall extension 21b being connected with end wall 21c two ends by end wall 21c by " コ " word shape sidewall; Contact arm in side is accommodated peristome 26b, and its and this outboard end resettlement section 26a links, can be to the mode of exposing in jag recess 22, at the medial surface opening of sidewall extension 21b to make aforementioned the 1st side contact at least a portion of arm 58; Central substrate connecting portion is accommodated peristome 26c, and itself and aforementioned outboard end resettlement section 26a link, to make to observe from outside the mode of at least a portion of aforementioned the 1st central substrate connecting portion 55, at the lateral surface opening of end wall 21c; And central authorities contacts arm accommodates peristome 26d, it links with aforementioned outboard end resettlement section 26a, can be to the mode of exposing in jag recess 22, at the medial surface opening of end wall 21c to make aforementioned the 1st central authorities contact at least a portion of arm 54.

In addition, the 1st reinforced metal part 51 is being arranged under the 1st state protruding on end 21, roughly entirety is housed in the 1st metalwork maintenance recess 26, but at least a portion of the 1st side contact arm 58 of left and right is exposed to the inner side of sidewall extension 21b, at least a portion of the 1st central substrate connecting portion 55 is exposed to the outside of end wall 21c, and at least a portion of the 1st central authorities' contact arm 54 is exposed to the inner side of end wall 21c.

Below, the structure of the 2nd connector 101 is described.

Fig. 4 is the stereogram of the 2nd connector in the 1st execution mode of the present invention, the figure observing from chimeric surface side, Fig. 5 A to Fig. 5 D is the four sides view of the 2nd connector in the 1st execution mode of the present invention, and Fig. 6 A, Fig. 6 B are the stereograms of the 2nd reinforced metal part in the 1st execution mode of the present invention.In addition, in Fig. 5 A to Fig. 5 D, Fig. 5 A is vertical view, and Fig. 5 B is end view, and Fig. 5 C is upward view, and Fig. 5 D is front view, and in Fig. 6 A, Fig. 6 B, Fig. 6 A is the figure observing from oblique front upper place, and Fig. 6 B is the figure observing from oblique back upper place.

The 2nd connector 101 has the 2nd housing 111 as connector body being integrally formed by insulating properties materials such as synthetic resin.The 2nd housing 111 as shown in the figure, has roughly the i.e. shape of rectangular thick plate-like roughly of cuboid, has for example longitudinal about 6.0[mm], horizontal about 1.5[mm] and the about 0.7[mm of thickness] size, but size can suitably change.And, the 2nd housing 111 be embedded in that side in the 1st connector 1, i.e. chimeric side (upside in Fig. 5 B), form: elongated concave part 113, it extends on the length direction of the 2nd housing 111; As the 2nd protuberance 112 of elongated protrusion, it marks off the outside of this concave part 113, and extends on the length direction of the 2nd housing 111.The 2nd protuberance 112 is along the both sides of concave part 113, and forms along the both sides of the 2nd housing 111.In addition, each the 2nd protuberance 112 has and forms continuously on the side that 115, the 2 terminal accommodating chambeies 115, the 2nd terminal accommodating chamber of groove shape are the side, the upper surface of the 2nd protuberance 112 and the outsides of the 2nd protuberance 112 that are distributed in the inner side of the 2nd protuberance 112.And, in the 2nd terminal accommodating chamber 115, accommodate and clog the 2nd terminal 161 as terminal.

As shown in the figure, concave part 113 is in that side of installing to the 2nd substrate, installed surface (lower surface in Fig. 5 B) side is by bottom lock.In addition, in the example shown in figure, aforementioned the 2nd protuberance 112 is 2, but can be also 1, and its quantity can be arbitrarily.In addition, aforementioned grooves portion 113 has the about 0.7[mm of for example width] size, size can suitably change.

Aforementioned the 2nd terminal 161 is by conductive metal plate being carried out to the parts that the processing such as stamping-out, bending are integrally formed, having: maintained portion 163; Afterbody 162, it is connected with the lower end of this maintained portion 163; Connecting portion 164, it is connected with the upper end of aforementioned maintained portion 163; The 1st contact site 165, it is connected with the inner of this connecting portion 164; The 2nd contact site 166, it is formed on the outer surface of aforementioned maintained portion 163.

And, aforementioned the 2nd terminal 161 is embedded in the 2nd terminal accommodating chamber 115 from chimeric surface side, maintained portion 163 is housed in the part in the outer lateral side that is formed at the 2nd protuberance 112 in the 2nd terminal accommodating chamber 115, by its sidewall from sandwich, thereby be fixed on the 2nd housing 111.At this state, that is, the 2nd terminal 161 is packed under the state in the 2nd housing 111, and the surface of the 1st contact site 165, connecting portion 164 and the 2nd contact site 166 becomes in each side of the 2nd protuberance 112 and the state that chimeric surface exposes.In this case, for aforementioned the 2nd terminal accommodating chamber 115, on each the 2nd protuberance 112 for example with about 0.2[mm] spacing be formed with respectively 15.And, for the 2nd terminal 161 being housed in each the 2nd terminal accommodating chamber 115, also on each the 2nd protuberance 112 for example with about 0.2[mm] spacing dispose respectively 15.In addition, the spacing in aforementioned the 2nd terminal accommodating chamber 115 and number can suitably change.

In addition, aforementioned afterbody 162 extends to the outside of the 2nd housing 111, is connected to and being connected on pad that the conducting wire on the 2nd substrate links by solder etc.In addition,, for aforementioned conducting wire, typical case, is holding wire.

And, dispose separately at the length direction two ends of aforementioned the 2nd housing 111 as the 2nd of the 2nd chimeric guide portion and protrude end 122.The 2nd protrusion end 122 is to extend on the Width of the 2nd housing 111, the thick walled part that two ends are connected with the length direction two ends of each the 2nd protuberance 112, and its upper surface has roughly rectangular shape.And the aforementioned the 2nd protrudes end 122 as under the 1st connector 1 and the chimeric state of the 2nd connector 101, what have to aforementioned the 1st connector 1 the 1st protrudes the insertion protuberance inserting in the jag recess 22 of end 21 and works.

In addition, on aforementioned the 2nd protrusion end 122, the 2nd reinforced metal part 151 as reinforced metal part is installed.The 2nd reinforced metal part 151, along the 2nd lateral surface configuration of protruding the 2nd housing 111 of end 122, is accommodated and is remained on the 2nd metalwork being formed on the 2nd protrusion end 122 and keep in recess 126.

And the 2nd reinforced metal part 151 in present embodiment is by metallic plate being carried out to the parts that the processing such as stamping-out, bending are integrally formed, and has: the 2nd main part 152 of elongated, belt-shaped, it extends on the Width of the 2nd housing 111; The 2nd side plate 157, it is bending and be connected with the two ends, left and right of the 2nd main part 152, on the length direction of the 2nd housing 111, extends; And as the 2nd side substrate connecting portion 156 of substrate connecting portion, it is connected with the lower end of the 2nd side plate 157.

Aforementioned the 2nd main part 152 is a body component of continuous " コ " word shape with the 2nd side plate 157 being connected with the two ends, left and right of the 2nd main part 152 in the time that chimeric surface side is observed, and is formed with the 2nd locking hook 157a of portion of concaveconvex shape on the free end of the 2nd side plate 157.In addition, the 2nd side substrate connecting portion 156 is the plate-shaped members that extend on the same face with aforementioned the 2nd side plate 157, and its lower end is connected to and being connected on pad that the conducting wire of the 2nd substrate links by solder etc.In addition,, for aforementioned conducting wire, typical case, is power line.

In addition, aforementioned the 2nd reinforced metal part 151 is arranged on as follows the 2nd and protrudes on end 122,, the 2nd reinforced metal part 151 covers at least a portion of the lateral surface of the 2nd protrusion end 122, and the lateral surface of the 2nd main part the 152, the 2nd side plate 157 and the 2nd side substrate connecting portion 156 exposes to the 2nd outside of protruding end 122.And the lateral surface of the central portion of the 2nd main part 152 is as under the 1st connector 1 and the chimeric state of the 2nd connector 101, contact the 2nd central authorities that arm 54 contacts with the 1st central authorities of the 1st reinforced metal part 51 and contact arm 154 and work.In addition, the lateral surface of the 2nd side plate 157 is as under the 1st connector 1 and the chimeric state of the 2nd connector 101, contacts the 2nd side contact arm 158 that arm 58 contacts work with the 1st side of the 1st reinforced metal part 51.In addition, to aforementioned the 2nd central authorities' contact arm 154 and the 2nd side contact arm 158 unified describing in the situation that, describe as contact arm.

Below, the 1st connector 1 and the chimeric action of the 2nd connector 101 that make aforementioned structure are described.

Fig. 7 A to Fig. 7 C is the 1st connector and the 2nd connector three-face view of chimeric state each other illustrating in the 1st execution mode of the present invention, Fig. 8 be the 1st connector in the 1st execution mode of the present invention and the 2nd connector each other chimeric state want portion's profile, it is the A portion sectional side view in Fig. 7 B, Fig. 9 be the 1st connector in the 1st execution mode of the present invention and the 2nd connector each other chimeric state want portion's profile, that B-B in Fig. 7 A is to pseudosection, Figure 10 be the 1st connector in the 1st execution mode of the present invention and the 2nd connector each other chimeric state want portion's profile, that C-C in Fig. 7 A is to pseudosection, Figure 11 A, Figure 11 B represents that the 1st connector in the 1st execution mode of the present invention and the 2nd connector are each other under chimeric state, the stereogram of the relation between the 1st reinforced metal part and the 2nd reinforced metal part.In addition, in Fig. 7 A to Fig. 7 C, Fig. 7 A is vertical view, and Fig. 7 B is end view, and Fig. 7 C is front view, and in Figure 11 A, Figure 11 B, Figure 11 A is the figure observing from oblique front upper place of the 1st reinforced metal part, and Figure 11 B is the figure observing from oblique back upper place of the 1st reinforced metal part.

Here, for the 1st connector 1, the afterbody 62 of the 1st terminal 61 is connected to and being connected on pad that the conducting wire of the 1st not shown substrate links by solder etc., and, the 1st side substrate connecting portion the 56 and the 1st central substrate connecting portion 55 of the 1st reinforced metal part 51 is connected to and being connected on pad that the conducting wire of the 1st substrate links by solder etc., thereby is surface mounted on the 1st substrate.In addition, for the conducting wire being attached on the connection pad that aforementioned afterbody 62 connects, typical case, it is holding wire, for the conducting wire being attached on the connection pad that aforementioned the 1st side substrate connecting portion the 56 and the 1st central substrate connecting portion 55 connects, typical case, is power line.

Similarly, for the 2nd connector 101, the afterbody 162 of the 2nd terminal 161 is connected to and being connected on pad that the conducting wire of the 2nd not shown substrate links by solder etc., and, the 2nd side substrate connecting portion 156 of the 2nd reinforced metal part 151 is connected to and being connected on pad that the conducting wire of the 2nd substrate links by solder etc., thereby is surface mounted on the 2nd substrate.In addition, for the conducting wire being attached on the connection pad that aforementioned afterbody 162 connects, typical case, is holding wire, and for the conducting wire being attached on the connection pad that aforementioned the 2nd side substrate connecting portion 156 connects, typical case, is power line.

First, operator makes the chimeric side of the 1st connector 1 and the chimeric surface of the 2nd connector 101 become state in opposite directions, the aligned in position of the corresponding concave part 12a of the position of the 2nd protuberance 112 of the 2nd connector 101 and the 1st connector 1, the 2nd of the 2nd connector 101 protrudes the aligned in position of the position of end 122 and the corresponding jag recess 22 of the 1st connector 1, completes thus the aligned in position of the 1st connector 1 and the 2nd connector 101.

Under this state, if to approaching the direction of the other side's side, chimeric direction moves, the 2nd protuberance 112 of the 2nd connector 101 and the 2nd protrudes concave part 12a and the jag recess 22 interior insertion of end 122 to the 1st connector 1 by the 1st connector 1 and/or the 2nd connector 101.Thus, as shown in Fig. 7 A to Fig. 7 C, after chimeric the completing of the 1st connector 1 and the 2nd connector 101, the 1st terminal 61 and the 2nd terminal 161 become conducting state.

In detail, as shown in figure 10, between the 1st contact site 65 of each the 1st terminal 61 and the 2nd contact site 66, insert the 2nd terminal 161 of the 2nd connector 101, the 1st contact site 65 of the 1st terminal 61 contacts with the 1st contact site 165 of the 2nd terminal 161, and the 2nd contact site 66 of the 1st terminal 61 contacts with the 2nd contact site 166 of the 2nd terminal 161.Its result, is attached at the conducting wire on the connection pad on the 1st substrate that the afterbody 62 of the 1st terminal 61 connects, the conducting wire conducting on the connection pad on the 2nd substrate being connected with the afterbody 162 that is attached at the 2nd terminal 161.In this case, the 1st terminal 61 and the 2nd terminal 161 become Multi-contact, therefore maintain reliably conducting state.

In addition, as shown in Fig. 8, Fig. 9 and Figure 11 A, Figure 11 B, the 2nd reinforced metal part 151 that the 1st reinforced metal part 51 that the 1st connector 1 has and the 2nd connector 101 have becomes the state engaging with each other.Thus, the 1st reinforced metal part 51 and the 2nd reinforced metal part 151 become the state of conducting.In addition,, in Figure 11 A, Figure 11 B, in order to make the relation between the 1st reinforced metal part 51 and the 2nd reinforced metal part 151 clear and definite, omitted the diagram of the 1st housing the 11, the 2nd housing the 111, the 1st terminal 61 and the 2nd terminal 161.

In detail, the 2nd reinforced metal part 151 is inserted in inner side at the 1st reinforced metal part 51, below bend 58a in the 1st side contact arm 58 of the left and right of the 1st reinforced metal part 51 contacts arm 158 with the 2nd side of the left and right of the 2nd reinforced metal part 151 and contacts, and the below bend 54a in the 1st central authorities' contact arm 54 of the 1st reinforced metal part 51 contacts arm 154 with the 2nd central authorities of the 2nd reinforced metal part 151 and contacts.In this case, by the function as spring portion of the 1st side contact arm 58 self, it is mainly the function as spring portion of arm portions 58c and top bend 58d, the surface of below bend 58a is pressed to the surface of the 2nd side contact arm 158, by the function as spring portion of the 1st central authorities contacts arm 54 self, be mainly the function as spring portion of arm portions 54c and top bend 54d, the surface of below bend 54a is pressed to the surface of the 2nd central authorities' contact arm 154.

Thus, the 2nd reinforced metal part 151 keeps securely by the 1st reinforced metal part 51, so can prevent that the 2nd reinforced metal part 151 and the 1st reinforced metal part 51 from departing from, and maintains the chimeric of the 1st connector 1 and the 2nd connector 101 reliably.In addition, due to the contact between surface and the 2nd central surface that contacts arm 154 of the contact between the surface of bend 58a below maintaining reliably and the surface of the 2nd side contact arm 158 and below bend 54a, so the conducting between the 1st reinforced metal part 51 and the 2nd reinforced metal part 151 is reliably maintained.

In addition, by the 1st reinforced metal part 51 and/or the 2nd reinforced metal part 151 are moved to chimeric direction, thereby the surface of below bend 58a is moving in sliding in state of pressing to the surface of the 2nd side contact arm 158, the surface of below bend 54a is moving in sliding in state of pressing to the surface of the 2nd central authorities' contact arm 154.Therefore, can prevent below between bend 58a and the 2nd side contact arm 158 and below the foreign matter of nipping between bend 54a and the 2nd central authorities' contact arm 154, can not come in contact bad.In addition, because surface and the 2nd central surface that contacts arm 154 of the 2nd side contact arm 158 are planes, so sliding distance is long, that is, slip quantitative change is large.Therefore, the cleaning effect between below bend 58a and the 2nd side contact arm 158 and between below bend 54a and the 2nd central authorities' contact arm 154 becomes large, can prevent loose contact.

Like this, the conducting wire of the 1st side substrate connecting portion the 56 and the 1st central substrate connecting portion 55 of the 1st reinforced metal part 51 the 1st substrate of connecting via connecting pad, and conducting between the conducting wire of the 2nd substrate that connects via being connected pad of the 2nd side substrate connecting portion 156 of the 2nd reinforced metal part 151.

In this case, between the 1st reinforced metal part 51 and the 2nd reinforced metal part 151, become Multi-contact, specifically, 3 position contacts, so conducting state is maintained reliably.In addition, the contact resistance between the 1st reinforced metal part 51 and the 2nd reinforced metal part 151 also reduces.Therefore, even be power line in aforementioned conducting wire, for example, making 1 ~ 3[A] the large electric current of degree is in the case of mobile between the conducting wire of the 1st substrate and the conducting wire of the 2nd substrate, because contact resistance is low, so can not produce a large amount of heats on the 1st reinforced metal part 51 and the 2nd reinforced metal part 151.And, because the 1st reinforced metal part 51 and the 2nd reinforced metal part 151 are Multi-contacts, so can prevent a large amount of heats due to current distributing.

In addition, the arm portions 54c of aforementioned the 1st central authorities' contact arm 54 and top bend 54d are that performance is than aforementioned arm portions 58c and the larger pressing force of top bend 58d than arm portions 58c and the wide parts of top bend 58d of the 1st side contact arm 58.Its reason is, the location of the 2nd connector 101 on the Width of the 1st connector 1, not only realize by the 1st side contact arm 58, and realize by multiple the 1st terminals 61, on the other hand, the location of the 2nd connector 101 on the length direction of the 1st connector 1, mainly realizes by the 1st central authorities' contact arm 54 that is configured in the 1st reinforced metal part 51 on the length direction two ends of the 1st connector 1.

The size of the pressing force that the 1st central authorities' contact arm 54 is brought into play, adjusts by the flexibility performance 54b of portion.As previously mentioned, due to the existence of this flexibility performance 54b of portion, the width dimensions of arm portions 54c and top bend 54d substantially reduces, thus elastic force minimizing, its result, the pressing force that the 1st central authorities' contact arm 54 is brought into play reduces.In addition, by adjusting width and the length of the aforementioned flexible performance 54b of portion, thereby can adjust the minimizing degree of the pressing force that the 1st central authorities contacts arm 54 brings into play.

And, as previously mentioned, due to the existence of the flexibility performance 54b of portion, the flexibility of arm portions 54c and top bend 54d improves, below bend 54a can flexibly carry out displacement, therefore can maintain reliably and the 2nd central authorities of the 2nd reinforced metal part 151 contact the contact between arm 154.Especially, top bend 54d is the bend with large radius, therefore flexible high, strain on a large scale.In addition, preferably as shown in Figure 8, under the 1st connector 1 and the chimeric state of the 2nd connector 101, the 1st central authorities' contact free end of arm 54 and the end wall 21c butt of the 1st housing 11.Thus, can there are not the 1st central authorities' contact arm 54 permanent deformations and lose as the phenomenon of the function of spring portion, i.e. so-called surrender.And, because the 1st central authorities' contact arm 54 is banded plate member, so the surface of below bend 54a is the surface of banded plate member, at the Width of aforementioned panels parts, extend on a large scale the Width of the 1st connector 1 when chimeric surface side is observed, on a large scale with the plane of extending on Width at the 2nd connector 101 the 2nd central authorities of the 2nd reinforced metal part 151 contact arm 154 lines and contacts.Therefore, the contact resistance between aforementioned below bend 54a and the 2nd central authorities' contact arm 154 is low, and, can maintain reliably conducting state.

And the surface of below bend 54a is bending convex surface, but the surface that contacts arm 154 with the 2nd central authorities similarly, is even surface.Therefore, even if the vibration or the impact that produce in the time that electronic equipment that the 1st substrate and the 2nd substrate are installed etc. drops or bears external force pass over, in the situation of the 2nd reinforced metal part 151 with respect to the 1st relatively displacement of reinforced metal part 51, the surface of below bend 54a slides over each other with the surface that the 2nd central authorities contact arm 154, also contact be can maintain, the conducting temporarily disconnected of arm 154, i.e. so-called hit phenomenon contacted with the 2nd central authorities so can there is not below bend 54a.

Suppose below form protuberance in one of them of bend 54a and the 2nd central authorities contacts arm 154, on another, form recess, making below bend 54a contact arm 154 with the 2nd central authorities carries out in concavo-convex chimeric situation, vibrate or impact if transmitted, the protuberance recess that moves in recess or come in and go out, there is hit so likely make at this moment, the surface of protuberance and recess temporarily separate.But, in the present embodiment, as previously mentioned, because surface and the 2nd central surface that contacts arm 154 of below bend 54a are even surfaces, so can there is not hit.

The size of the pressing force that in addition, aforementioned the 1st side contact arm 58 is brought into play is adjusted by the flexibility performance 58b of portion.As previously mentioned, because the width dimensions that makes arm portions 58c and top bend 58d by the existence of this flexibility performance 58b of portion reduces, thus elastic force minimizing, its result, the pressing force that the 1st side contact arm 58 is brought into play reduces.In addition,, by adjusting width and the length of the aforementioned flexible performance 58b of portion, can adjust the minimizing degree of the pressing force that the 1st side contact arm 58 brings into play.

And, as previously mentioned, by the existence of the flexibility performance 58b of portion, the flexibility of arm portions 58c and top bend 58d is improved, flexibly displacement of below bend 58a, so can maintain reliably the contact that contacts arm 158 with the 2nd side of the 2nd reinforced metal part 151.Especially, top bend 58d is owing to being the bend with large radius, so flexibility is high, and strain on a large scale.In addition, preferably as shown in Figure 9, under the 1st connector 1 and the chimeric state of the 2nd connector 101, the 1st side contact free end of arm 58 and the sidewall extension 21b butt of the 1st housing 11.Thus, can there are not the 1st side contact arm 58 permanent deformations and lose as the phenomenon of the function of spring portion, i.e. so-called surrender.And, because the 1st side contact arm 58 is banded plate member, so the surface of below bend 58a is the surface of banded plate member, at the Width of aforementioned panels parts, extend on a large scale on the length direction of the 1st connector 1 in the time that chimeric surface side is observed, on a large scale with the plane of extending on length direction at the 2nd connector 101, the 2nd side of the 2nd reinforced metal part 151 contacts arm 158 lines contacts.Therefore, the contact resistance between aforementioned below bend 58a and the 2nd side contact arm 158 is low, and conducting state also can maintain reliably.

And the surface of below bend 58a is bending convex surface, but the surface that contacts arm 158 with the 2nd side is similarly even surface.Therefore, contact the situation of arm 154 in the same manner with below bend 54a and the 2nd central authorities, even if below bend 58a contacts arm with the 2nd side, 158 transmission are vibrated or are impacted, and also can maintain reliably contact, and hit can not occur.

And, according to Fig. 8 and 9 known, contact the position that arm 158 starts contact with below bend 58a with the 2nd side and compare, below bend 54a contact arm 154 with the 2nd central authorities and starts the chimeric surface (in Fig. 8 and 9, closer to the top) of more close the 1st connector 1 in position contacting.Therefore, by in the 1st connector 1 and the chimeric operation of the 2nd connector 101, the 2nd protrusion end 122 at the 2nd connector 101 is fashionable to jag recess 22 interpolations of the 1st connector 1, first, below bend 54a contact arm 154 with the 2nd central authorities and starts contact, and then below bend 58a contacts arm 158 and starts to contact with the 2nd side., bend 54a in below does not start with the contact that the 2nd side contacts arm 158 with contact and below bend 58a that the 2nd central authorities contact arm 154 simultaneously.Therefore, the required power of the interior insertion of jag recess 22 by the 2nd protrusion end 122 of the 2nd connector 101 to the 1st connector 1, that is, diminish the 1st connector 1 and the chimeric required inlay resultant force of the 2nd connector 101, so can easily carry out chimeric operation.

In addition, known according to Fig. 8 ~ 10, compare the chimeric surface (in Fig. 8 ~ 10, closer to the top) of more close the 1st connector 1 in position that the 1st terminal 61 starts to contact with the 2nd terminal 161 with the position that the 2nd reinforced metal part 151 starts to contact with the 1st reinforced metal part 51.Therefore, by in the 1st connector 1 and the chimeric operation of the 2nd connector 101, the 2nd protuberance 112 and the 2nd protrusion end 122 at the 2nd connector 101 are fashionable to concave part 12a and jag recess 22 interpolations of the 1st connector 1, first, the 1st terminal 61 starts to contact with the 2nd terminal 161, and then the 1st reinforced metal part 51 starts to contact with the 2nd reinforced metal part 151., the 1st reinforced metal part 51 and the 2nd reinforced metal part 151 contact and the 1st terminal 61 and contacting of the 2nd terminal 161 be not to start simultaneously.Therefore, the 2nd protuberance 112 of the 2nd connector 101 and the 2nd is protruded to concave part 12a and the jag recess 22 interior insertion required power of end 122 to the 1st connector 1,, the 1st connector 1 and the chimeric required inlay resultant force of the 2nd connector 101 are diminished, so can easily carry out chimeric operation.

And the 1st side contact arm 58 and the 1st side substrate connecting portion 56 of the 1st reinforced metal part 51, while observation, is connected with the 1st side plate 57 at same position place roughly from chimeric surface side.Therefore, contact the contact site of arm 158 with the 2nd side from below bend 58a, conduction distance to the 1st reinforced metal part 51 till the connecting portion of the connection pad of the 1st side substrate connecting portion the 56 and the 1st substrate is short, therefore conductive resistance is low, even the in the situation that of stream super-high-current, also can not produce a large amount of heats on the 1st reinforced metal part 51.

Similarly, the 1st central authorities contacts arm 54 and the 1st central substrate connecting portion 55 of the 1st reinforced metal part 51, while observation, is connected with the 1st main part 52 at same position place roughly from chimeric surface side.Therefore, contact the contact site of arm 154 with the 2nd central authorities from below bend 54a, conduction distance to the 1st reinforced metal part 51 till the connecting portion of the connection pad of the 1st central substrate connecting portion 55 and the 1st substrate is short, therefore conductive resistance is low, even the in the situation that of stream super-high-current, also can not produce a large amount of heats on the 1st reinforced metal part 51.

In addition, the 2nd side contact arm 158 and the 2nd side substrate connecting portion 156 of the 2nd reinforced metal part 151, while observation, is connected with the 2nd side plate 157 at same position place roughly from chimeric surface side.Therefore, from the contact site of the 2nd side contact arm 158 and below bend 58a, conduction distance to the 2nd reinforced metal part 151 till the connecting portion of the connection pad of the 2nd side substrate connecting portion the 156 and the 2nd substrate is short, therefore conductive resistance is low, even the in the situation that of stream super-high-current, also can not produce a large amount of heats on the 2nd reinforced metal part 151.

In addition,, in the example shown in figure, the 2nd reinforced metal part 151 does not have the substrate connecting portion that is formed on the position identical with the 2nd central authorities' contact arm 154.Therefore, the electric current in the 2nd reinforced metal part 151, from the contact site of the 2nd central authorities' contact arm 154 and below bend 54a, flows to the connecting portion of the connection pad of the 2nd side substrate connecting portion the 156 and the 2nd substrate.But, because the 2nd reinforced metal part 151 is that the mode that is positioned at the inner side of the 1st reinforced metal part 51 forms, so the size of entirety is less, therefore also shorten from the conduction distance till the connecting portion of the connection pad of connecting portion to the 2 side substrate connecting portion the 156 and the 2nd substrates of the 2nd central authorities contacts arm 154 and below bend 54a.Like this, even the in the situation that of stream super-high-current, also can not produce a large amount of heats on the 2nd reinforced metal part 151.In addition, as required, also can form the substrate connecting portion identical with the 2nd side substrate connecting portion 156 in the position identical with the 2nd central authorities' contact arm 154.

As mentioned above, in the present embodiment, comprising: the 1st connector 1, it has the 1st terminal 61 and the 1st housing 11, the 1 housings 11 are included in the 1st protrusion end 21 that length direction two ends form; And the 2nd connector 101, it has the 2nd terminal 161 and the 2nd housing 111, the 2nd terminal 161 contacts with the 1st terminal 61, the 2nd housing 111 is included in the 2nd protrusion end 122 chimeric with the 1st protrusion end 21 that length direction two ends form, protrude on end 21 and the 2nd protrusion end 122 the 1st reinforced metal part 51 and the 2nd reinforced metal part 151 are installed the 1st, the 2nd reinforced metal part 151 comprises: the 2nd main part 152, and it extends on the Width of the 2nd housing 111; And a pair of the 2nd side plate 157, it is connected with the two ends of the 2nd main part 152, on the length direction of the 2nd housing 111, extends, and the 1st reinforced metal part 51 comprises: the 1st main part 52, it extends on the Width of the 1st housing 11; A pair of the 1st side plate 57, it is connected with the two ends of the 1st main part 52, on the length direction of the 1st housing 11, extends; And the 1st central authorities contacts arm 54 contact arm 58 with the 1st side, they are connected with the 1st main part 52 and the 1st side plate 57 respectively, the 1st central authorities' contact arm 54 and the 1st side contact arm 58 and comprise separately: top bend 54d and 58d; Below bend 54a and 58a; Arm portions 54c and 58c, it is connected with 58d, below bend 54a top bend 54d with 58a; And the flexible performance 54b of portion and 58b, it reduces the width dimensions of at least a portion of top bend 54d and 58d, arm portions 54c and 58c, and the bending convex surface of below bend 54a and 58a is pressed to the 2nd main part 152 of the 2nd reinforced metal part 151 and the surface of the 2nd side plate 157.

Thus, can give high flexibility to the 1st central authorities' contact arm 54 of the 1st reinforced metal part 51 and the 1st side contact arm 58, and, below guarantee that large contact surface is long-pending between the 2nd main part 152 of bend 54a and 58a and the 2nd reinforced metal part 151 and the 2nd side plate 157.Its result, can maintain reliably the fastening state between the 1st reinforced metal part 51 and the 2nd reinforced metal part 151, and can maintain reliably the conducting state between the 1st reinforced metal part 51 and the 2nd reinforced metal part 151, can keep reliably chimeric between the 1st connector 1 and the 2nd connector 101, improve reliability.

In addition, the 1st reinforced metal part 51 also comprises the 1st central substrate connecting portion 55 and the 1st side substrate connecting portion 56, their one end are connected with the conducting wire of substrate, the other end is connected with the 1st main part 52 and the 1st side plate 57 respectively, when the 1st central substrate connecting portion 55 and the 1st side substrate connecting portion 56 other end are separately observed from the chimeric surface side of the 1st connector 1, with the 1st central authorities contacts arm 54 and the 1st side contact arm 58 identical position separately, be connected with the 1st main part 52 and the 1st side plate 57 respectively.Therefore, conduction distance in the 1st reinforced metal part 51 till one end of below bend 54a and 58a to the 1 central substrate connecting portion 55 and the 1st side substrate connecting portion 56 is short, so conductive resistance is low, even the in the situation that of stream super-high-current, can not produce a large amount of heats on the 1st reinforced metal part 51 yet.

And, the 1st central authorities' contact arm 54 and the 1st side contact arm 58 are made up of banded plate member, the bending convex surface of below bend 54a and 58a extends on the Width of plate member, contacts with the 2nd main part 152 of the 2nd reinforced metal part 151 and the surface line of the 2nd side plate 157.Therefore, the contact resistance between the 2nd main part 152 and the 2nd side plate 157 of below bend 54a and 58a and the 2nd reinforced metal part 151 is low, and, also can maintain reliably conducting state.

And, the flexibility performance 58b of portion of the 1st side contact arm 58 being connected with the 1st side plate 57 is formed on the lateral margin of at least a portion of top bend 58d and arm portions 58c, and the width dimensions of at least a portion of top bend 58d and arm portions 58c is reduced along with close below bend 58a.Thus, flexibly displacement of below bend 58a, so can maintain reliably the contact that contacts arm 158 with the 2nd side of the 2nd reinforced metal part 151.

Below, the 2nd execution mode of the present invention is described.In addition, for thering is the part of same configuration with the 1st execution mode, mark same reference numerals, the description thereof will be omitted thus.In addition, for the action identical with aforementioned the 1st execution mode and identical effect, also the description thereof will be omitted.

Figure 12 is the stereogram of the 2nd connector in the 2nd execution mode of the present invention, is the figure observing from chimeric surface side, and Figure 13 is the stereogram of the 2nd reinforced metal part in the 2nd execution mode of the present invention.

In the present embodiment, the 2nd terminal 161 of the 2nd connector 101 has: not shown main part; Afterbody 162, it is connected with the lower end of this main part; The 1st contact site 165, it is connected with the upper end of aforementioned body portion; Connecting portion 164, it is connected with the upper end of the 1st contact site 165; And the 2nd contact site 166, it is connected with the outer end of this connecting portion 164.In addition, be formed with on the surface of aforementioned the 1st contact site 165 engage with the 1st contact site 65 of the 1st terminal 61 the 1st contact recess 165a, be formed with on the surface of aforementioned the 2nd contact site 166 engage with the 2nd contact site 66 of the 1st terminal 61 the 2nd contact recess 166a.

And aforementioned the 2nd terminal 161 is integrated with the 2nd housing 111 by adhering to moulding (overmold)., the 2nd housing 111 be by advance in inside is placed with the die cavity of mould of the 2nd terminal 161 potting resin form.Thus, the 2nd terminal 161 buries in the 2nd housing 111 at main part, and under the state that expose on each side of the 2nd protuberance 112 and chimeric surface on the surface of the 1st contact site 165, connecting portion 164 and the 2nd contact site 166, one is arranged on the 2nd housing 111.

In addition, the 2nd reinforced metal part 151 of the 2nd connector 101 in present embodiment has the bending arm 154c being connected with the upper end of the central portion of the 2nd main part 152.This bending arm 154c is that entirety has the roughly parts of the side view of U-shaped, comprises the cardinal extremity bend 154a that is connected with aforementioned the 2nd main part 152 and the front end bend 154d of more forward end.And, being arranged at the 2nd reinforced metal part 151 under the 2nd state protruding on end 122 of the 2nd housing 111, aforementioned bending arm 154c is housed in the recess 122a on the upper surface that is formed at the 2nd protrusion end 122.In addition, on the 2nd side contact arm 158 of aforementioned the 2nd reinforced metal part 151, be formed with and contact the side contact recess 158a that arm 58 engages with the 1st side of the 1st reinforced metal part 51.

In addition, for other structures of the 2nd connector 101, due to identical with aforementioned the 1st execution mode, so the description thereof will be omitted.In addition, for the 1st connector 1, due to identical with aforementioned the 1st execution mode, so the description thereof will be omitted.And, for by the 1st connector 1 and chimeric action and the effect of the 2nd connector 101, due to identical with aforementioned the 1st execution mode, so the description thereof will be omitted.

In addition, the present invention is not limited by aforementioned embodiments, can carry out various distortion based on thought of the present invention, these distortion should not got rid of outside scope of the present invention.

Industrial applicibility

The present invention is applicable to connector.

Claims (19)

1. a connector,

Comprise:

The 1st connector, it has the 1st terminal and the 1st housing, and the 1st housing is included in the 1st chimeric guide portion of the length direction two ends formation of the 1st housing; And

The 2nd connector, it has the 2nd terminal and the 2nd housing, the 2nd terminal and aforementioned the 1st termination contact, the 2nd housing is included in the 2nd chimeric guide portion chimeric with aforementioned the 1st chimeric guide portion of the length direction two ends formation of the 2nd housing,

It is characterized in that,

In aforementioned the 1st chimeric guide portion and the 2nd chimeric guide portion, be separately installed with the 1st reinforced metal part and the 2nd reinforced metal part,

The 2nd reinforced metal part comprises: the 2nd main part, and it extends on the Width of aforementioned the 2nd housing; And a pair of the 2nd side plate, be connected with the two ends of the 2nd main part respectively, on the length direction of aforementioned the 2nd housing, extend,

Aforementioned the 1st reinforced metal part comprises: the 1st main part, and it extends on the Width of aforementioned the 1st housing; A pair of the 1st side plate, is connected with the two ends of the 1st main part respectively, on the length direction of aforementioned the 1st housing, extends; And contact arm, be connected with aforementioned the 1st main part and the 1st side plate respectively,

Aforementioned contact arm comprises separately: top bend; Below bend; Arm portions, it connects aforementioned top bend and below bend; And flexible performance portion, it reduces the width dimensions of at least a portion of aforementioned top bend and arm portions, and the bending convex surface of aforementioned below bend is pressed to the 2nd main part of aforementioned the 2nd reinforced metal part and the surface of the 2nd side plate.

2. connector according to claim 1, is characterized in that,

Aforementioned the 1st reinforced metal part also comprises substrate connecting portion, one end of aforesaid base plate connecting portion is connected with the conducting wire of substrate, the other end of aforesaid base plate connecting portion is connected with aforementioned the 1st main part and the 1st side plate respectively, while observation from the chimeric surface side of aforementioned the 1st connector, the aforesaid base plate connecting portion other end is separately connected with aforementioned the 1st main part and the 1st side plate respectively in the position identical with each aforementioned contact arm.

3. connector according to claim 1, is characterized in that,

Aforementioned contact arm is formed by banded plate member, and the bending convex surface of aforementioned below bend extends on the Width of aforementioned panels parts, contacts with the 2nd main part of aforementioned the 2nd reinforced metal part and the surface line of the 2nd side plate.

4. connector according to claim 2, is characterized in that,

Aforementioned contact arm is formed by banded plate member, and the bending convex surface of aforementioned below bend extends on the Width of aforementioned panels parts, contacts with the 2nd main part of aforementioned the 2nd reinforced metal part and the surface line of the 2nd side plate.

5. according to the connector described in any one in claim 1～4, it is characterized in that,

The flexibility performance portion of the contact arm being connected with aforementioned the 1st side plate is formed on the lateral margin of at least a portion of aforementioned top bend and arm portions, and the width dimensions of at least a portion of aforementioned top bend and arm portions is reduced along with close aforementioned below bend.

6. according to the connector described in any one in claim 1～4, it is characterized in that,

The top bend of contact arm and the width of arm portions that are connected with aforementioned the 1st main part are wider than the top bend of contact arm and the width of arm portions that are connected with aforementioned the 1st side plate, bring into play larger pressing force.

7. connector according to claim 5, is characterized in that,

The top bend of contact arm and the width of arm portions that are connected with aforementioned the 1st main part are wider than the top bend of contact arm and the width of arm portions that are connected with aforementioned the 1st side plate, bring into play larger pressing force.

8. according to the connector described in any one in claim 1～4, it is characterized in that,

The flexibility performance portion of the contact arm being connected with aforementioned the 1st main part is formed on the Width centre of at least a portion of aforementioned top bend and arm portions, and this flexibility performance portion is the elongated open of the slit-shaped of extending on the length direction of aforementioned contact arm.

9. connector according to claim 5, is characterized in that,

The flexibility performance portion of the contact arm being connected with aforementioned the 1st main part is formed on the Width centre of at least a portion of aforementioned top bend and arm portions, and this flexibility performance portion is the elongated open of the slit-shaped of extending on the length direction of aforementioned contact arm.

10. connector according to claim 6, is characterized in that,

The flexibility performance portion of the contact arm being connected with aforementioned the 1st main part is formed on the Width centre of at least a portion of aforementioned top bend and arm portions, and this flexibility performance portion is the elongated open of the slit-shaped of extending on the length direction of aforementioned contact arm.

11. connectors according to claim 7, is characterized in that,

The flexibility performance portion of the contact arm being connected with aforementioned the 1st main part is formed on the Width centre of at least a portion of aforementioned top bend and arm portions, and this flexibility performance portion is the elongated open of the slit-shaped of extending on the length direction of aforementioned contact arm.

12. according to the connector described in any one in claim 1～4, it is characterized in that,

Start with the position that the surface of the 2nd main part of aforementioned the 2nd reinforced metal part starts to contact from the bending convex surface of the below bend that is connected to the contact arm aforementioned the 1st main part, the extremely distance till the chimeric surface of aforementioned the 1st connector, the bending convex surface that is different from the below bend from being connected to the contact arm aforementioned the 1st side plate starts with the position that the surface of the 2nd side plate of aforementioned the 2nd reinforced metal part starts to contact, extremely the distance till the chimeric surface of aforementioned the 1st connector.

13. connectors according to claim 5, is characterized in that,

Start with the position that the surface of the 2nd main part of aforementioned the 2nd reinforced metal part starts to contact from the bending convex surface of the below bend that is connected to the contact arm aforementioned the 1st main part, the extremely distance till the chimeric surface of aforementioned the 1st connector, the bending convex surface that is different from the below bend from being connected to the contact arm aforementioned the 1st side plate starts with the position that the surface of the 2nd side plate of aforementioned the 2nd reinforced metal part starts to contact, extremely the distance till the chimeric surface of aforementioned the 1st connector.

14. connectors according to claim 6, is characterized in that,

Start with the position that the surface of the 2nd main part of aforementioned the 2nd reinforced metal part starts to contact from the bending convex surface of the below bend that is connected to the contact arm aforementioned the 1st main part, the extremely distance till the chimeric surface of aforementioned the 1st connector, the bending convex surface that is different from the below bend from being connected to the contact arm aforementioned the 1st side plate starts with the position that the surface of the 2nd side plate of aforementioned the 2nd reinforced metal part starts to contact, extremely the distance till the chimeric surface of aforementioned the 1st connector.

15. connectors according to claim 7, is characterized in that,

Start with the position that the surface of the 2nd main part of aforementioned the 2nd reinforced metal part starts to contact from the bending convex surface of the below bend that is connected to the contact arm aforementioned the 1st main part, the extremely distance till the chimeric surface of aforementioned the 1st connector, the bending convex surface that is different from the below bend from being connected to the contact arm aforementioned the 1st side plate starts with the position that the surface of the 2nd side plate of aforementioned the 2nd reinforced metal part starts to contact, extremely the distance till the chimeric surface of aforementioned the 1st connector.

16. connectors according to claim 8, is characterized in that,

Start with the position that the surface of the 2nd main part of aforementioned the 2nd reinforced metal part starts to contact from the bending convex surface of the below bend that is connected to the contact arm aforementioned the 1st main part, the extremely distance till the chimeric surface of aforementioned the 1st connector, the bending convex surface that is different from the below bend from being connected to the contact arm aforementioned the 1st side plate starts with the position that the surface of the 2nd side plate of aforementioned the 2nd reinforced metal part starts to contact, extremely the distance till the chimeric surface of aforementioned the 1st connector.

17. connectors according to claim 9, is characterized in that,

Start with the position that the surface of the 2nd main part of aforementioned the 2nd reinforced metal part starts to contact from the bending convex surface of the below bend that is connected to the contact arm aforementioned the 1st main part, the extremely distance till the chimeric surface of aforementioned the 1st connector, the bending convex surface that is different from the below bend from being connected to the contact arm aforementioned the 1st side plate starts with the position that the surface of the 2nd side plate of aforementioned the 2nd reinforced metal part starts to contact, extremely the distance till the chimeric surface of aforementioned the 1st connector.

18. connectors according to claim 10, is characterized in that,

Start with the position that the surface of the 2nd main part of aforementioned the 2nd reinforced metal part starts to contact from the bending convex surface of the below bend that is connected to the contact arm aforementioned the 1st main part, the extremely distance till the chimeric surface of aforementioned the 1st connector, the bending convex surface that is different from the below bend from being connected to the contact arm aforementioned the 1st side plate starts with the position that the surface of the 2nd side plate of aforementioned the 2nd reinforced metal part starts to contact, extremely the distance till the chimeric surface of aforementioned the 1st connector.

19. connectors according to claim 11, is characterized in that,

Start with the position that the surface of the 2nd main part of aforementioned the 2nd reinforced metal part starts to contact from the bending convex surface of the below bend that is connected to the contact arm aforementioned the 1st main part, the extremely distance till the chimeric surface of aforementioned the 1st connector, the bending convex surface that is different from the below bend from being connected to the contact arm aforementioned the 1st side plate starts with the position that the surface of the 2nd side plate of aforementioned the 2nd reinforced metal part starts to contact, extremely the distance till the chimeric surface of aforementioned the 1st connector.