JP2824748B2 - Electrical connector having a movable guide plate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric connector mounted on a printed circuit board, and more particularly, to an electric connector capable of aligning and holding a tail portion of the electric connector and accurately positioning the electric connector on the printed circuit board. The present invention relates to an electrical connector having a movable guide plate that can be mounted on a connector.

[0002]

2. Description of the Related Art As is well known, electrical connectors are widely used to connect electrical and electronic devices, and their shapes and forms are various. One of them is as follows. 2. Description of the Related Art There is an electrical connector (for example, an electrical connector for I / O of a computer) mounted on a printed circuit board of an electric / electronic device and connected to a conductor of the printed circuit board.

The electrical connector mounted on the printed circuit board comprises a housing and a plurality of terminals provided on the housing, and the tails of the plurality of terminals are inserted into through holes of the printed circuit board. However, since the tails of the plurality of terminals are thin and easily deformed, it is difficult to maintain the alignment of the tails, and the printed circuit board is not mounted. A drawback such as an inability to accurately insert into the through-hole occurs, and in order to solve this drawback, a guide plate capable of aligning and holding tail portions of a plurality of terminals is mounted on the electric connector. Is what it is.

As an electric connector having the above-mentioned guide plate, as shown in Japanese Patent Application Laid-Open No. H4-179078, the electric connector comprising a housing and a plurality of terminals provided on the housing is provided at the bottom of the electric connector. A movable guide plate mounted with a movable guide plate that moves up and down in a state where the tail portions of the plurality of terminals disposed in the housing are aligned and held by the guide holes and the tail portions of the plurality of terminals are aligned and held. Has been proposed, and since the electrical connector has a movable guide plate, the tails of a plurality of terminals are aligned and held, so that the electrical connector can be easily mounted on a printed circuit board. In addition, it can be performed accurately, and the electrical connector can be automatically mounted on a printed circuit board. It was those.

[0005]

According to the above prior art, the electric connector mounted on the printed circuit board has the movable guide plate, so that the tail portions of the plurality of terminals are aligned and held. In other words, the mounting of the electrical connector on the printed circuit board is easy and accurate, but the movable guide plate for aligning and holding the tails of the plurality of terminals has a structure in which the electrical connector is mounted on the printed circuit board. Since it is fixed only when mounted, the movable guide plate is not fixed at other times, that is, at the time of inspection and transport of the electrical connector, and further, the movable guide plate is orthogonal to the vertical direction. No measures are taken to prevent backlash in the direction (especially in the front-rear direction), so when the movable guide plate moves up and down, Ku may result, Therefore was achieved worry about alignment retention of the tail portion of the plurality of terminals is impaired occurs.

[0006]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the problems of the prior art as described above, and the tail portions of a plurality of terminals forming an electrical connector having a movable guide plate are provided. In addition, it is accurately aligned and held not only when mounted on a printed circuit board, but also at other times, that is, during inspection, storage, and transportation, so that the alignment and holding state of the tails of a plurality of terminals is always good. It is to provide an electrical connector having a movable guide plate that is maintained.

[0007]

In order to achieve the above object, the present invention has the following technical means. In other words, using the reference numerals used in the accompanying drawings corresponding to the embodiments, the housing 2 and the plurality of terminals 3 provided on the housing 2 are disposed on the bottom 4 of the electrical connector 1 and are disposed on the housing 2. Each of the tail portions 5 of the plurality of terminals 3 is
In the electrical connector having a movable guide plate mounted with a movable guide plate 11 that can move up and down while the tail portions 5 of the plurality of terminals 3 are aligned and held while maintaining the alignment, the movable guide plate 11 ,
It comprises a guide plate main body 12 and fitting pieces 14 formed at both ends thereof. The fitting piece 14 is formed by a lock beam 15 having a lock projection 16 and formed on the housing 2. The upper lock body 8 and the lower lock body 9 are provided on the wall surface of the fitting hole 6 which is configured to be able to be fitted into the fitting hole 6 and which faces the lock projection 16 of the lock beam 15 constituting the fitting piece 14. The movable guide plate 11 is temporarily fixed at a predetermined position within the vertical movable range by engaging and holding the lock projection 16 between the upper lock body 8 and the lower lock body 9. An electrical connector having a movable guide plate.

Further, the lock beam 15 having the lock projections 16 forming the fitting pieces 14 formed at both ends of the movable guide plate 11 is provided with anti-rattle pieces 17 on the right and left sides of the lock beam 15. Is formed,
An electric connector having a movable guide plate, wherein rattling in a front-rear direction orthogonal to a vertical direction of the movable guide plate 11 is prevented.

[0009]

According to the present invention, an electric connector having the above-mentioned technical means and having a movable guide plate mounted on a printed circuit board 21 has a movable guide plate 11 having fitting pieces 14 formed at both ends thereof. Consisting of
The fitting piece 14 is formed by a lock beam 15 having a lock projection 16 and fits into a fitting hole 6 formed in the housing 2 of the electrical connector 1. Rock beam 1 that constitutes
By engaging and holding the lock projections 16 between the upper lock body 8 and the lower lock body 9 formed on the wall surface of the fitting hole 6 where the lock projections 16 of 5 face each other, the movable guide plate 11 moves up and down. Is temporarily fixed at a predetermined position within the movable range of the plurality of terminals 3, not only when the tail portions 5 of the plurality of terminals 3 are mounted on the printed circuit board 21 but also at other times, that is, inspection and storage. The alignment and holding state of the tail portions 5 of the plurality of terminals 3 is always maintained satisfactorily even during transportation.

Further, a lock beam 15 having a lock projection 16 forming a fitting piece 14 formed at both ends of the movable guide plate 11 is provided with anti-rattle pieces 17 to the left and right with the lock beam 15 inside. Is formed,
Since play in the front-rear direction perpendicular to the vertical direction in which the movable guide plate 11 is movable is prevented, the movable guide plate 11 is reliably prevented from tilting in the front-rear direction when moving up and down, This makes it easier to maintain the alignment of the tails 5 of the terminals 3.

[0011]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. As shown in FIGS. 1 and 2, the electrical connector having the movable guide plate of the present invention includes a housing 2.
And an electrical connector 1 comprising a plurality of terminals 3 disposed on a housing 2, and a tail portion 5 of the plurality of terminals 3 disposed on the housing 2 mounted on a bottom 4 of the electrical connector 1.
And a movable guide plate 11 that can be moved up and down in a state where the tail portions 5 of the plurality of terminals 3 are aligned and held by the guide holes 13. The guide plate 11 is provided so as to be fittable in a guide plate housing space 7 formed behind the bottom 4 of the electrical connector 1.

The movable guide plate 11 is
As shown in FIGS. 3, 4, and 5, a guide plate body 12 having a guide hole 13 for aligning and holding each of the tail portions 5 of the plurality of terminals 3, and formed at both ends thereof. The fitting piece 14;
Is formed by a lock beam 15 having a lock projection 16 and is configured to be fittable into a fitting hole 6 formed in the housing 2 of the electric connector 1. A lock beam 15 having a lock projection 16 constituting the piece 14 is provided with anti-rattle pieces 17 on the left and right sides of the lock beam 15 with the lock beam 15 as the center.

A fitting piece 14 formed at both ends of the movable guide plate 11 and fitted into the fitting hole 6 is a lock beam having a lock projection 16 formed thereon as shown in FIGS. In addition to the lock beam 15, rattling preventing pieces 17 are formed on the left and right sides of the lock beam 15, and the lock beam 15 is configured such that one end thereof is a free end with respect to both ends of the movable guide plate 11. The lock projection 16 is elastically attached as
The tapered surface 31 is formed on the free end side of the lock beam 15 and has a tapered surface 31 having a gentle slope on one side (upper side in the figure) and a steep slope on the other side (lower side in the figure). It is configured as a surface 32.

The fitting holes 6 formed in the housing 2 of the electric connector 1 into which the fitting pieces 14 formed at both ends of the movable guide plate 11 are fitted, as shown in FIGS. , Lock beam 15 constituting the fitting piece 14
The upper lock body 8 and the lower lock body 9 for engaging and holding the lock projection 16 are formed on the wall surface of the fitting hole 6 facing the lock projection 16. Numeral 8 is configured as tapered surfaces 33 and 34 having a gentle inclination on one side (upper side in the figure) and the other side (lower side in the figure), and is formed at one place in the center of the wall surface of the fitting hole 6. The lower lock body 9 is configured as a fall prevention surface 35 having a steep slope on one side (upper side in the figure) and a taper surface 36 having a gentle slope on the other side (lower side in the figure). The upper lock body 8 is formed below the upper lock body 8 formed at one position in the center of the wall surface of the fitting hole 6.
Are formed at two places on the wall surface in such a manner as to sandwich them.

An upper lock body 8 formed on the wall surface of the fitting hole 6 with the lock projection 16 forming the fitting piece 14 is provided.
By engaging and holding between the lower lock body 9 and
As shown in FIG. 5, the movable guide plate 11 is temporarily fixed at a predetermined position within the vertical movable range (in this embodiment,
This shows a case where the tail portions 5 of the plurality of terminals 3 are formed at positions slightly exposed below the guide plate main body 12), and formed on the guide plate main body 12 of the movable guide plate 11. The guide hole 13 for aligning and holding each of the tail portions 5 of the plurality of terminals 3 is configured such that the size of the hole increases upward in the drawing.
This improves the insertability and the guideability of the tail portions 5 of the terminals 3.

Further, on the bottom surface 18 of the guide plate body 12 of the movable guide plate 11, a guide post 19 which fits into a positioning hole 22 formed in the printed circuit board 21, and the electric connector 1 is attached to the printed circuit board 21. Small protrusions 20 are formed to prevent the bottom surface 18 of the movable guide plate 11 from adhering to the surface of the printed circuit board 21 when mounted, and the bottom 4 of the housing of the electrical connector 1 is formed. Has an electrical connector 1
Pegs 10 for fixing the printed circuit board 21
It has been formed.

Next, an example of use of the electric connector having the movable guide plate of the present invention based on the above-described configuration and its operation will be described. Examples of use of the electrical connector having the movable guide plate include mounting of the movable guide plate 11 on the electrical connector 1 and inspection (conduction) of the electrical connector having the movable guide plate formed by mounting the movable guide plate 11. Inspection), and further, storage and transportation of the electrical connector having the movable guide plate, and mounting of the electrical connector having the movable guide plate on a printed circuit board are four main examples of use.
The operation of the electrical connector having a movable guide plate according to these use cases will be described in detail below.

In forming the electric connector having the movable guide plate, each of the tail portions 5 of the plurality of terminals 3 is aligned and held with respect to the bottom portion 4 of the electric connector 1 comprising the housing 2 in which the plurality of terminals 3 are disposed. Guide hole 13 for
The mounting of the movable guide plate 11 is performed by forming fitting pieces 14 formed at both ends of the guide plate body 12 in the housing 2 of the electrical connector 1. This is performed by fitting into the fitted hole 6.

The fitting between the fitting pieces 14 formed at both ends of the guide plate body 12 and the fitting holes 6 formed in the housing 2 of the electrical connector 1 will be described in more detail. When the mating piece 14 is fitted into the fitting hole 6, the lock projection 16 of the lock beam 15 constituting the fitting piece 14 is locked by the lower lock formed on the wall surface of the fitting hole 6 facing the lock projection 16. Overcoming body 9, upper lock body 8
And a temporary fixed state in which the movable guide plate 11 is engaged with and held by the lower lock body 9. By the provisional fixing, the mounting of the movable guide plate 11 to the electrical connector 1 is completed. is there.

Then, the lock projection 16 constituting the fitting piece 14 rides over the lower lock body 9 formed on the wall surface of the fitting hole 6 facing the lock projection 16, and the upper lock body 8 and the lower lock body 9 FIG. 5 shows a state in which the lock projection 16 is engaged with and held between the lower lock body 9 and the tapered surfaces 31, 3.
6 is in contact with the upper lock body 8 and the lock projection 16 and the upper lock body 8 when engaged and held between the upper lock body 8 and the lower lock body 9. , The tapered surfaces 31 and 34 abut each other, and the lock projection 16 and the lower lock body 9
2 and 35 are in contact with each other.
The movable guide plate 6 can be easily moved only in the upward direction, so that the mounted movable guide plate 11 is prevented from dropping from the electrical connector 1.

Further, the lock projection 16 has an upper lock body 8 formed at one location in the center of the wall surface and two locations on the wall surface such that the upper lock body 8 is sandwiched below the upper lock body 8. Are supported at three places by a lower lock body 9 formed in the vertical direction, and not only the movement in the up-down direction but also in the front-rear direction is restricted. Since the anti-sticking pieces 17 are provided on the left and right sides, the movement of the movable guide plate 11 can be restricted only in the vertical direction, and the backlash in the front-rear direction is reliably prevented. 5 can maintain good alignment retention.

In addition, when attaching the movable guide plate 11 to the electrical connector 1, the guide plate body 1
The insertion of the tail portions 5 of the plurality of terminals 3 disposed in the housing 2 of the electric connector 1 into the guide holes 13 formed in the electrical connector 1 and the alignment and holding thereof are simultaneously performed. 13 is configured so that the size of the hole increases upward, so that it has excellent insertion and guide properties, and the tails 5 of the plurality of terminals 3 can be accurately positioned. Insertion is performed while being guided at the alignment position, so that even if the alignment state of the tail portions 5 of the plurality of terminals 3 is slightly distorted, the tail portions 5 can be inserted without any trouble. It will be easier.

Next, the inspection of the electrical connector having the movable guide plate formed by mounting the movable guide plate 11 will be described. The inspection of the electrical connector 1 is performed by the pin probe 41 or the like (see FIG. 12). The dash-dotted line) indicates the tail portions 5 of the plurality of terminals 3 of the electrical connector 1.
In general, a continuity test is conducted to check the continuity by contacting the movable portion with the tail portion 5 of the plurality of terminals 3 aligned and held by the guide holes 13 formed in the guide plate main body 12 of the movable guide plate 11. Pin probe 4
This is performed by contacting 1 or the like.

At this time, the guide hole 1 formed in the guide plate body 12 of the movable guide plate 11
In order to make the contact of the pin probe or the like to the ends of the tails 5 of the plurality of terminals 3 aligned and held by the terminals 3 more favorable, it is necessary to expose the tails 5 of the plurality of terminals 3 long. This is performed by moving the temporarily fixed movable guide plate 11 upward, and as described when the electrical connector having the movable guide plate was formed, the upper lock was used. Body 8
Piece 1 engaged and held between the lower lock body 9 and the lower lock body 9
The lock projection 16 and the upper lock body 8 are configured such that the tapered surfaces 31 and 34 of the upper lock body 8 are in contact with each other, so that the lock projection 16, that is, the movable guide plate 11 can easily move upward. Therefore, the exposure of the tail portions 5 of the plurality of terminals 3 can be performed very easily.

At the end of the inspection work (continuity inspection using a pin probe or the like), the movable guide plate 11 that has been moved upward is returned to the temporarily fixed position.
The exposure of the tail portions 5 of the plurality of terminals 3 is slight. In this state, that is, in a temporarily fixed state, the storage and transport of the electrical connector having the movable guide plate is performed, so that the plurality of terminals 3 are exposed. 3 is prevented from being applied to the tail portion 5 inadvertently, and the movable guide plate 11 is restricted in movement in the vertical and longitudinal directions, and performs only the minimum necessary movement. When keeping the alignment of the tail part 5 of the terminal 3 always good, when storing and transporting the electrical connector having the movable guide plate,
A situation that impairs the function does not occur.

Further, inspection (continuity inspection) of the electrical connector having the movable guide plate is completed, and the storage and storage of the electrical connector are completed.
When returning to the state at the time of transport, that is, the state in which the movable guide plate 11 is temporarily fixed, the lock projection 16 that forms the fitting piece 14 of the movable guide plate 11 is formed in opposition to the lock projection. It is necessary to climb over the body 8 from above to below.
Is constituted by the taper surfaces 33 and 34 on one side and the other side, so that the lock projection 16 can easily be moved over, and the movable guide plate 11 is moved downward to be temporarily fixed. It can be easily returned.

FIGS. 10, 11 and 12 show the mounting of the electric connector having the movable guide plate on the printed circuit board 21. The bottom surface 18 of the guide plate body 12 of the movable guide plate 11 is shown in FIGS. The electric connector having the movable guide plate can be positioned at an accurate position on the printed circuit board 21 by fitting the guide post 19 formed on the printed circuit board 21 into the positioning hole 22 formed on the printed circuit board 21. It is.

Then, the electric connector having the movable guide plate positioned at an accurate position on the printed circuit board 21 by the guide post 19 is pressed toward the printed circuit board 21 so that the movable connector mounted on the electric connector 1 is pressed. The guide plate 11 fits into and is housed in the guide plate housing space 7 formed behind the bottom 4 of the electrical connector 1 and the housing 2 of the electrical connector 1.
The mounting pegs 10 formed on the bottom portion 4 are fitted into the mounting holes 23 of the printed circuit board 21, and the mounting of the electrical connector having the movable guide plate on the printed circuit board 21 is completed.

Further, when the electric connector having the movable guide plate is mounted on the printed circuit board 21,
The tails 5 of the plurality of terminals 3 disposed on the housing 2 of the electrical connector 1 are inserted into the through holes 24 in the printed circuit board 21 while being aligned and held by the guide holes 13 of the guide plate body 12 of the movable guide plate 11. In addition, since the guide plate 11 is well-prevented from rattling, the tail portions 5 of the plurality of terminals 3 can be accurately inserted. Bottom 1 of movable guide plate 11
The movable guide plate 11 has a printed circuit board 21.
Is formed with a small projection 20 for preventing adhesion to the surface of the printed circuit board 21, a gap is formed between the bottom surface 18 of the movable guide plate 11 and the surface of the printed circuit board 21, and a capillary phenomenon or the like occurs. Thus, problems such as short-circuiting of the tail portions 5 of the plurality of terminals 3 due to the above-mentioned problems can be prevented.

Then, fitting pieces 14 formed on both ends of the movable guide plate 11 when the electric connector having the movable guide plate is mounted on the printed circuit board 21.
When the inspection of the electric connector having the movable guide plate is performed, the movable guide plate 11 moves upward from the temporary fixing position, as in the inspection of the electrical connector having the movable guide plate. The movement of the lock projection 16 and the upper lock body 8 is completed when the lock projection 16 of the component 14 moves over the upper lock body 8, and the lock projection 16 and the upper lock body 8 are tapered from each other at the temporarily fixed position. 3
Since the first and third abutments are in contact with each other, it is easy to get over them, and a large force is not required for mounting the electrical connector having the movable guide plate. It is possible to prevent the occurrence of inconveniences such as inconvenience.

[0031]

As described in detail above, the present invention has the following effects. That is, according to the first aspect, the fitting pieces formed on both ends of the movable guide plate that is mounted on the electric connector and that can move up and down are formed by the lock arms having the lock projections and are formed on the housing of the electric connector. The upper locking member and the lower locking member are provided on the wall surface of the fitting hole where the lock projections of the lock arm forming the fitting piece face each other. The movable guide plate is temporarily fixed at a predetermined position within the vertical movable range by engaging and holding the lock projection between the upper lock body and the lower lock body. Not only when the tails of the terminals of the electrical connector are mounted on the printed circuit board, but also at other times, that is, inspection, storage,
It is possible to provide an electric connector having a movable guide plate in which the tails of a plurality of terminals can always be kept in good alignment even when being conveyed.

According to the second aspect, the lock arm having the lock projections forming the fitting pieces formed at both ends of the movable guide plate has anti-rattle pieces on the left and right sides of the lock arm. The movable guide plate is prevented from rattling in the front-rear direction orthogonal to the vertical direction, so that the movable guide plate is reliably prevented from tilting in the front-rear direction when moving up and down, and a plurality of terminals are provided. According to the third aspect, a guide post is formed at the bottom of the movable guide plate so as to fit into a positioning hole formed in the printed circuit board. Therefore, the positioning of the electrical connector at the time of mounting on the printed circuit board can be performed easily and reliably.

[Brief description of the drawings]

FIG. 1 is a front view of an electric connector having a movable guide plate (a state before being mounted on a printed circuit board).

FIG. 2 is a sectional view taken along the line A-A 'in FIG.

FIG. 3 is a diagram illustrating an upper surface of an electrical connector having a movable guide plate.

FIG. 4 is a diagram illustrating a lower surface of an electrical connector having a movable guide plate.

5 is a view including a partial cross section taken along line EE ′ in FIG. 3 showing a state of a fitting piece when the movable guide plate is temporarily fixed.

FIG. 6 is a view on arrow P in FIG. 3 showing a fitting piece of the movable guide plate.

FIG. 7 is a sectional view taken along the line C-C 'in FIG.

8 is a view taken in the direction of arrow Q in FIG. 3 showing an upper lock body and a lower lock body formed on the wall surface of the fitting hole.

FIG. 9 is a sectional view taken along the line D-D 'in FIG.

FIG. 10 is a front view showing a state where the electrical connector having the movable guide plate is mounted on a printed circuit board.

11 is a sectional view taken along the line BB ′ in FIG.

FIG. 12 is a view including a partial cross section taken along line EE ′ in FIG. 3, showing a state of a fitting piece when the electrical connector having the movable guide plate is mounted on the printed circuit board;
It is a figure showing the state at the time of inspecting (continuity inspection) of the electric connector which has a movable guide plate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electric connector 2 Housing 3 Terminal 4 Bottom part 5 Tail part 6 Fitting hole 7 Movable guide plate accommodation space 8 Upper lock body 9 Lower lock body 11 Movable guide plate 12 Guide plate body 13 Guide hole 14 Fitting piece 15 Lock arm 16 Lock Projection 17 Anti-rattle piece 18 Bottom surface 19 Guide post 21 Printed circuit board 22 Positioning hole

Claims (3)

(57) [Claims] An electric connector comprising a housing and a plurality of terminals disposed on the housing, a tail portion of the plurality of terminals disposed on the housing.
Are aligned and held by the guide holes 13, and the movable connector is provided with a movable guide plate 11 that is movable up and down while the tail portions 5 of the plurality of terminals 3 are aligned and held. The movable guide plate 11 is a guide plate body 1.
2 and fitting pieces 14 formed at both ends thereof. The fitting piece 14 is formed by a lock beam 15 having a lock projection 16 and is fitted to the housing 2. It is configured to be able to fit into the hole 6,
In addition, an upper lock body 8 and a lower lock body 9 are formed on the wall surface of the fitting hole 6 facing the lock projection 16 of the lock beam 15 constituting the fitting piece 14, and the lock projection 16 is locked by the upper lock. An electrical connector having a movable guide plate, wherein the movable guide plate 11 is temporarily fixed at a predetermined position within an upper and lower movable range by engaging and holding between the body 8 and the lower lock body 9. . 2. A lock beam 15 having a lock projection 16 forming a fitting piece 14 formed at both ends of the movable guide plate 11 is provided with anti-rattle pieces 17 to the left and right with the lock beam 15 inside. The electrical connector having a movable guide plate according to claim 1, wherein the electrical connector is formed and prevents backlash in a front-rear direction orthogonal to a vertical direction of the movable guide plate. 3. The bottom surface 18 of the movable guide plate 11.
A positioning hole 22 formed in the printed circuit board 21
An electrical connector having a movable guide plate according to claim 1, wherein a guide post (19) is formed so as to fit into said connector.