CN201498808U - Electrical connector - Google Patents

Abstract

The utility model discloses a switching device with an electrical connector of which the structure is simple. The electrical connector comprises an insulating main body, conductive terminals accommodated in the insulating main body and a switching device arranged on the insulating main body and can allow at least a signal wire connector to be inserted in and connected. The switching device comprises a first detection terminal, a second detection terminal, an elastic terminal and an insulating block, wherein the first detection terminal and the second detection terminal can be separately arranged; the elastic terminal can generate elastic deformation when the signal line connector is inserted; the insulating block is fixed on the elastic terminal and propped against the signal line connector; and the elastic terminal can be respectively in contact or disconnected with the first detection terminal and the second detection terminal when the signal line connector is inserted in or withdrawn. Furthermore, the first detection terminal and the second detection terminal are electrically connected or disconnected by means of the elastic terminal.

Description

electrical connector

【Technical field】

The utility model relates to an electric connector, in particular to an electric connector with a switch device.

【Background technique】

With the development of science and technology, the use of electronic products is becoming more and more common, so that various electrical connectors emerge as the times require. Generally speaking, most electrical connectors cannot detect whether the plug is plugged in when the corresponding plug is inserted. Inserted into the positioning, so that no other control functions can be provided accordingly. Therefore, currently existing electrical connectors are generally equipped with a switch device with a detection function. The switching devices of these existing electrical connectors are generally set as two conductive terminals, namely a fixed first detection terminal and a movable second detection terminal. The second detection terminal can be connected to the first detection terminal under the pressure of the mating plug The contact of the detection terminal is used to achieve the function of detection.

For the prior art related to the present utility model, please refer to the Chinese mainland utility model patent No. CN2692882Y announced on April 13, 2005. This patent discloses an electrical connector, which can be inserted and connected by at least one signal line connector. It includes an insulating body and at least one switch device disposed in the insulating body, the insulating body is provided with a receiving cavity that can be inserted and connected to the signal line connector through the insulating body, and each switch device includes a first detection terminal and a second detection terminal, the first detection terminal includes a movable part extending into the insertion hole and a welding leg extending out of the insulating body, the movable part includes a base and a reversely bent end of the base An elastic arm, the elastic arm forms an inclined plane and forms a socket area, the socket area is provided with a narrow area and a wide area, the second detection terminal is provided with a contact portion extending into the insertion hole and Extending the welding part of the insulating body; the position of the contact part corresponds to the wide area up and down, and the electrical connector is also provided with an insulating block that is socketed and fixed on the socket area. When the butt plug is inserted, it will press the insulating block. The detection is realized by making the first detection terminal contact with the second detection terminal. However, when the first detection terminal is formed, another process is required for reverse bending, which increases the manufacturing cost and the overall structure of the first detection terminal It is complicated, requires a lot of consumables, and has high requirements on the material flexibility of the first detection terminal.

Therefore, in view of the above technical problems, it is necessary to provide an electrical connector with an improved structure to overcome the above defects.

【Content of utility model】

The purpose of the utility model is to provide an electrical connector with a simple switch device structure.

In order to achieve the above purpose, the utility model adopts the following technical solution: an electrical connector, which can be inserted into and connected to at least one signal line connector, which includes: an insulating body, a conductive terminal accommodated in the insulating body, and a In the switch device, the insulating body is provided with an insertion hole that passes through the insulation body front and back and is used to accommodate the signal line connector. The switch device includes first and second detection terminals separately arranged, extending into the insertion hole and The elastic terminal that can be elastically deformed when the signal line connector is inserted and the insulating block fixed on the elastic terminal and can be pressed against the signal line connector. The two detection terminals are contacted or disconnected, and then the elastic terminal is used to form electrical conduction or disconnection between the first and second detection terminals.

Compared with the prior art, the structure of the elastic terminal and the first and second detection terminals of the electrical connector of the utility model is simple, the manufacture is convenient, and the manufacturing cost is saved; at the same time, the electrical connector of the utility model realizes the first detection terminal through the elastic terminal. 1. The electrical conduction between the second detection terminals. In this way, the overall structure of the switch device is simple and novel, and the first and second detection terminals in the electrical connector of the present utility model can use metals with poor elasticity and low price. Raw materials are conducive to further saving manufacturing costs.

【Description of drawings】

FIG. 1 is a three-dimensional assembled view of the electrical connector of the present invention.

Fig. 2 is a three-dimensional combined view of Fig. 1 from another angle.

FIG. 3 is a rear schematic view of the insulating body of the electrical connector holding the conductive terminals and the switch device of the present invention.

FIG. 4 is a three-dimensional exploded view of the electrical connector of the present invention.

5A is a three-dimensional exploded view of the elastic terminal and the insulating block of the electrical connector of the present invention.

5B is a three-dimensional assembly view of the elastic terminal and the insulating block of the electrical connector of the present invention.

FIG. 6 is a three-dimensional exploded view of the electrical connector switch device of the present invention.

Fig. 7 is a three-dimensional exploded view of the conductive terminal of the electrical connector of the present invention.

FIG. 8 is a schematic diagram of the front side of the insulating body of the electrical connector of the present invention.

FIG. 9 is a schematic diagram of the rear side of the insulating body of the electrical connector of the present invention.

【Detailed ways】

Please refer to Figures 1 to 9, the electrical connector 100 of the present invention is used to be installed on a circuit board (not shown) and can be inserted into two signal line connectors (not shown). 100 includes an insulating body 1, a conductive terminal 2 accommodated in the insulating body 1, a switch device 3 provided on the insulating body 1, a collar 4 installed on the front end of the insulating body 1, and a positioning seat installed on the rear end of the insulating body 1 5 and a shielding case 6 that is covered on the insulating body 1 and snapped together with the positioning seat 5 .

Please refer to FIG. 8 and FIG. 9, the electrical connector 100 of this embodiment is arranged in a stacked structure, the insulating body 1 includes a roughly rectangular parallelepiped main body 10, and a notch protruding forward from the front end of the main body 10. A continuous cylindrical docking portion 11 and an insertion hole 12 passing through the docking portion 11 forward and through the main body 10 backward. The collar 4 is sleeved on the docking portion 11 . The main body 10 is provided with two parts stacked up and down. There are two collars 4 , butt joints 11 and socket holes 12 . The main body 10 includes a front end surface 101 at the front end and a rear end surface 102 opposite to the front end surface 101 at the rear end. The connected first card slot 103 and the second card slot 104 located on one side of the insertion hole 12 and communicated with the insertion hole 12 . The rear end of the main body 10 is located around the insertion hole 12 and is respectively provided with a plurality of terminal receiving grooves 105 for fixing the conductive terminals 2 and the switch device 3 . The terminal receiving grooves 105 communicate with the insertion hole 12 . The bottom of the main body 10 is provided with a slot 106 extending backward from the main body 10 for holding the positioning seat 5 . The rear end of the main body 10 is provided with a boss 107 , and the boss 107 is provided with a plurality of vertical grooves 108 arranged at intervals for positioning the conductive terminals 2 and the switch device 3 .

Please refer to FIG. 7 , the conductive terminals 2 are arranged in two groups, which include a first conductive terminal group and a second conductive terminal group, and the first conductive terminal group corresponds to the insertion hole 12 on the upper side of the insulating body 1 , and the second conductive terminal group corresponds to the insertion hole 12 on the lower side of the insulating body 1 . The first and second conductive terminal groups both include a first conductive terminal 21 and a second conductive terminal 22 , and the first and second conductive terminal groups share a ground terminal 23 .

The first conductive terminal 21 of the first conductive terminal group includes a contact terminal 24 and a transfer terminal 25 provided separately from the contact terminal 24, and the contact terminal 24 includes a positioning portion 241 held in the second card slot 104, The elastic first contact portion 242 that bends and extends from the positioning portion 241 along the insertion direction of the signal line connector, the first guide portion 243 that further extends from the end of the first contact portion 242, and the self-positioning portion 241 further extends along the insertion direction of the signal line connector. The extended elastic second contact portion 244 located on the upper end of the first contact portion 242 is provided separately from the first contact portion 242 and the second contact portion 244 , and the second contact portion 244 is coplanar with the positioning portion 241 . A side edge of the positioning portion 241 is provided with a plurality of buckling portions 2410 so that the positioning portion 241 is firmly locked in the second locking groove 104 . The transfer terminal 25 includes a positioning portion 251 with a flat plate structure and is clamped in the terminal receiving groove 105, a second guide portion 252 extending vertically upward from the inner edge of the positioning portion 251, and a downward direction from the rear end of the positioning portion 251. The welded portion 253 is bent vertically. When the signal line connector is not inserted, the second contact portion 244 is pressed against the outer surface of the second lead portion 252, and there is no contact between the first lead portion 243 and the second lead portion 252, and the signal line When the connector is inserted, the first conducting portion 243 presses outward against the inner surface of the second conducting portion 252 to transmit the electrical signal to the transfer terminal 25 .

The second conductive terminal 22 includes a positioning portion 221 held in the terminal receiving groove 105, a first elastic portion 222 extending forward from the front end of the positioning portion 221, and a second elastic portion bent forward from the front end of the positioning portion 221. part 223 and the welded part 224 bent and extended vertically downward from the rear end of the positioning part 221, a certain gap is formed between the first elastic part 222 and the second elastic part 223 to increase the elasticity of the second elastic part 223 to The second elastic portion 223 can swing when the signal line connector is inserted. The front end of the second elastic part 223 has a third guide part 225 that protrudes inward and can be pressed against the signal line connector when the signal line connector is inserted. The positioning part 221, the second elastic part 223 and the third guide part The connection parts 225 are all sheet structures and are located on the same plane.

The ground terminal 23 is integrally arranged, which is roughly an "E"-shaped sheet structure. The ground terminal 23 includes a positioning part 231, first and second elastic parts extending forward from the positioning part 231 and arranged in parallel up and down. 232 , 233 and the welding portion 234 bent downward from the positioning portion 231 , the ends of the first and second elastic portions 232 , 233 are provided with first and second contact portions 2321 , 2331 protruding downward.

The structure of the second conductive terminal group is basically the same as that of the first conductive terminal group, the main difference is that the welding part 253 of the transfer terminal 25 of the second conductive terminal group is vertically downward from the front end of the positioning part 251 The welding part 224 of the second conductive terminal 22 of the second conductive terminal group is formed by bending and extending vertically downward directly from the front end of the positioning part 221. The second conductive terminal group of the second conductive terminal group The conductive terminal 22 does not have the first elastic portion 222 described by the second conductive terminal 22 in the first conductive terminal group.

Please refer to FIG. 5A, FIG. 5B and FIG. 6, the switch device 3 includes two upper and lower switch devices 3 respectively held in the main body 10, the two switch devices 3 are basically the same in structure, so only one of them will be discussed below. group in detail. The switch device 3 includes a first detection terminal 31, a second detection terminal 32, and an elastic terminal 33 that extends from the front end of the insulating body 1 into the insertion hole 12 and can move up and down when the signal line connector is inserted. And the insulating block 34 that is fixed on the elastic terminal 33 and can bear against the signal line connector, the structure of the first and second detection terminals 31 and 32 is symmetrical in the left and right direction, so set, the first and second The detection terminals 31 and 32 can be formed on the same metal sheet by stamping with the same set of molds, which is beneficial to save manufacturing costs. The elastic terminal 33 can contact or disconnect the first and second detection terminals 31, 32 respectively when the signal line connector is inserted or pulled out, and then the first and second detection terminals 31, 32 can be connected to each other by using the elastic terminal 33. form electrical continuity or disconnection between them.

The first detection terminal 31 includes a first fixing portion 311 , a first abutting portion 312 arranged at intervals from the first fixing portion 311 and parallel to the first fixing portion 311 , and connecting the first fixing portion 311 and the first abutting portion 312 The first connecting part 313 and the first welding leg 314 extending vertically downward from the rear end of the first fixing part 311, wherein the first fixing part 311 is provided with a The first buckle part 315 at the front end, the first conflicting part 312 is located inside the first fixing part 311, the first fixing part 311, the first conflicting part 312, the first connecting part 313 and the first buckling part 315 are located on the same plane.

The second detection terminal 32 includes a second fixing portion 321 , a second abutting portion 322 spaced apart from the second fixing portion 321 and parallel to the second fixing portion 321 , and connecting the second fixing portion 321 and the second abutting portion 322 The second connecting part 323 and the second welding leg 324 bent and extended vertically downward from the rear end of the second fixing part 321, wherein the second fixing part 321 is provided with a The second buckle part 325 at the front end, the second conflicting part 322 is located inside the second fixing part 321, the second fixing part 321, the second conflicting part 322, the second connecting part 323 and the second buckling part 325 on the same plane.

The elastic terminal 33 is formed by stamping from a metal sheet, and has a simple structure, which is beneficial to save manufacturing cost. The elastic terminal 33 includes a base portion 331 fixed in the first slot 103 and an elastic arm 332 extending from the end of the base portion 331 into the insertion hole 12 and elastically deformable. The base 331 is provided with a plurality of barbs 3311 for firmly holding the base 331 in the first slot 103 . The elastic arm 332 includes an inclined portion 333 located at the front end of the elastic arm 332 and extending obliquely upward from the base portion 331, and an inclined portion 333 located at the rear end of the elastic arm 332 and capable of contacting or disconnecting the first and second detection terminals 31, 32. The open overlapping portion 334 and the holding portion 335 connect the overlapping portion 334 and the inclined portion 333 and are located between the overlapping portion 334 and the inclined portion 333 . The angle between the overlapping portion 334 and the inclined portion 333 is an acute angle, the holding portion 335 is higher than the overlapping portion 334 , and the insulating block 34 is locked on the holding portion 335 . The elastic arm 332 further includes a bent portion 336 bent and extended to connect the overlapping portion 334 and the holding portion 335 . The overlapping portion 334 is provided with a plurality of protrusions 3341 that can be in contact with or disconnected from the first and second detection terminals 31 and 32 . The retaining portion 335 includes wider first and second connecting portions 3351 and 3352 located at the front and rear ends and a narrower clamping portion 3353 located between the first and second connecting portions 3351 and 3352. The connecting part 3351 is connected to the base part 331, the second connecting part 3352 is connected to the bending part 336, and the first connecting part 3351 extends downwards with two first retaining wings 3354 respectively located on both sides of the clamping part 3353, The second connecting portion 3352 extends downwards and has two second blocking wings 3355 respectively located on both sides of the clamping portion 3353. The first blocking wings 3354 and the second blocking wings 3355 are used to prevent the insulating block 34 from moving along the signal line. Movement in the direction of connector insertion or extraction.

The insulating block 34 is provided with a first part and a second part which are connected back and forth and are in a stepped structure with each other. The insulating block 34 includes a front end face 341 at the front end, a rear end face 342 at the rear end opposite to the front end face 341 and The stepped surface 343 is located between the front and rear end surfaces 341 , 342 . The insulating block 34 is provided with a positioning groove 344 passing through the front end surface 341 and the stepped surface 343, a first side 345 vertically connecting the front end surface 341 and the stepped surface 343 and communicating with the positioning groove 344, and vertically connecting the front end surface 341 and the rear end surface 342 and the second side 346 not communicating with the positioning groove 344 . The clamping portion 3353 is clamped in the positioning groove 344 , and the first side 345 is recessed inwardly to form a trumpet-shaped installation opening 3451 communicating with the positioning groove 344 to guide the mounting of the clamping portion 3353 . The caliber of the installation opening 3451 is smaller than the thickness of the holding portion 3353, and the holding portion 3353 is snapped into the positioning groove 344 by using the elasticity at the installation opening 3451, thus preventing the holding portion 3353 from moving toward the first side 345, At the same time, the second side 346 is not in communication with the positioning groove 344, which prevents the clamping portion 3353 from moving toward the second side 346, thus ensuring that the insulating block 34 will not move in a direction perpendicular to the insertion direction of the signal line connector. Movement occurs. The first and second retaining wings 3354, 3355 respectively press against the front surface 341 and the stepped surface 343, so as to ensure that the insulating block 34 will not move in the insertion direction of the signal line connector. The insulating block 34 is provided with an upwardly inclined slope 347 on the first part that can guide the insertion of the signal line connector and a horizontal extension 348 on the second part that extends backward from the slope 347 for the signal wire connector. Provide sufficient compression area.

In this embodiment, the first and second detection terminals 31 and 32 are normally open when the signal line connector is not inserted, that is, when the signal line connector is not inserted, the first detection terminal 31 and the second detection terminal 31 There is no electrical contact between the two detection terminals 32. When the signal line connector is inserted, the insulating block 34 is pressed by the signal line connector to drive the elastic terminal 33 to elastically deform, so that the elastic terminal 33 is connected to the first and second terminals respectively. The detection terminals 31 and 32 are in contact, so that electrical conduction is formed between the first and second detection terminals 31 and 32 to realize the detection function. Of course, in other implementation manners, the first and second detection terminals 31 and 32 can be set to a normally closed state, that is, when the signal line connector is not inserted, the first detection terminal 31 and the second detection terminal The terminals are already in a state of electrical conduction. When the signal line connector is inserted, the insulating block 34 is pressed by the signal line connector and drives the elastic terminal 33 to undergo elastic deformation, so that the elastic terminal 33 is in contact with the first and second detection terminals. The terminals 31 and 32 are in contact, so that the first and second detection terminals 31 and 32 are short-circuited, and no current passes between the first and second detection terminals 31 and 32 to realize the detection function.

The positioning base 5 includes a base 51 arranged vertically and a clamping plate 52 extending forward from the front end of the lower edge of the base 51 out of the base 51 . The base 51 is arranged in a stepped shape, and a step 511 and a vertical slot 512 for positioning the grounding terminal 23 are provided on the inner side of the base 51 and pass through the clamping plate 52 downwards. The vertical channel 513 of the first conductive terminal group and the first and second detection terminals 31, 32, and the clamping plate 52 is provided with a plurality of positions for positioning the second conductive terminal group and the first and second detection terminals 31, 32 through holes 520, the bottom of the clamping plate 52 is provided with a number of positioning posts 521 matching with the circuit board mounting holes (not shown).

The shielding housing 6 includes a butt wall 61 abutting against the front end surface 101 of the main body 10 , two side walls 62 extending backward from both sides of the butt wall 61 , and a top formed by bending the upper ends of the two side walls 62 toward each other. wall63. Through holes 611 corresponding to the two docking portions 11 on the insulating body 1 are provided on the docking wall 61 . The top end of the butt wall 61 is provided with a buckling portion 612 bent vertically backward, and the buckling portion 612 is buckled on the outer surface of the top wall 63 to prevent the top wall 63 from being deformed. The rear ends of the top wall 63 and the two side walls 62 are respectively provided with a plurality of hooks 621 that are engaged with the positioning seat 5 . A pair of mounting feet 622 extend downwards from the two sidewalls 62 to fix the electrical connector 100 of the present invention on the circuit board.

When assembling the electrical connector 100 of the present invention, firstly, assemble the conductive terminal 2 and the switch device 3 on the insulating body 1, so that the positioning part 221 of the second conductive terminal 22, the positioning part 251 of the transfer terminal 25 and the second 1. The first and second fixing parts 311 and 321 of the second detection terminals 31 and 32 are respectively clamped with the terminal receiving grooves 105 corresponding to the rear end of the insulating body 1. The positioning part 241 of the contact terminal 24 and the elastic terminal The base 331 of 33 is respectively engaged with the second engaging slot 104 and the first engaging slot 103 at the front end of the insulating housing 1 . The welding portion 224 of the second conductive terminal 22, the welding portion 253 of the transfer terminal 25, and the first and second welding feet 314, 324 of the first and second detection terminals 31, 32 respectively extend downwards out of the insulating body. 1, wherein the welding part 224 of the second conductive terminal 22 in the first terminal group, the welding part 253 of the transfer terminal 25 and the first and second welding legs of the first and second detection terminals 31 and 32 314, 324 are all accommodated in the channel 513 on the positioning seat 5, the welding part 224 of the second conductive terminal 22 in the second terminal group, the welding part 253 of the transfer terminal 25 and the first and second detection terminals The first and second welding feet 314 , 324 of 31 , 32 are both accommodated in the through hole 520 on the positioning seat 5 . The first contact portion 242, the first elastic portion 232, and the second elastic portion 223, 233 of each conductive terminal 2 protrude into the insertion hole 12, and the elastic arm 332 of each elastic terminal 33 protrudes into the insertion hole. In the connection hole 12. The first and second contact parts 312 and 322 of the first and second detection terminals 31 and 32 are located on the same horizontal plane, viewed from the rear end of the insulating body 1, corresponding to the conductive terminal 2 of each insertion hole 12 The welding parts 224, 253 and the first and second welding legs 314, 324 of the switch device 3 are arranged on the same vertical plane. Next, the positioning seat 5 is fixed on the rear end of the insulating body 1, the clamping plate 52 is snapped and fixed with the slot 106 of the insulating body 1, and the welding parts 224, 253 of the conductive terminal 2 and the first part of the switch device 3 1. The second welding legs 314 and 324 are respectively accommodated in the corresponding channel 513 and the through hole 520 and extend out of the clamping plate 52 . Then, the collar 4 is sleeved on the docking portion 11, and finally, the shielding shell 6 is covered on the insulating body 1, and the docking portion 11 passes through the through hole 611 on the docking wall 61 forward, and the clip The hook 621 is fastened to the rear end of the positioning seat 5 to prevent the shielding case 6 from loosening relative to the insulating body 1 .

When the electrical connector 100 of the utility model is mated with the signal line connector, when the signal line connector is inserted, it presses and contacts with the third conducting portion 225, the first contact portion 242 and the insulating block 34 of the conductive terminal 2 respectively, so that The first contact portion 242 of the contact terminal 24 is moved outward after being pressed by the signal line connector, which can drive the first lead portion 243 to contact the second lead portion 252. In this way, the contact terminal 24 can be used as a transfer terminal 25 is electrically connected to the circuit board; the insulating block 34 is pressed by the signal line connector and then moves along the vertical signal line connector insertion direction, so that the elastic terminal 33 also moves along the vertical signal line connector insertion direction, due to the first and second The conflicting parts 312, 322 are located on the same plane, so the protrusion 3341 on the overlapping part 334 of the elastic terminal 33 is in contact with the first and second conflicting parts 312, 322, so that the first and second detection terminals 31, 32 Electrical conduction is formed between them to realize the detection function. The first and second resisting portions 312 and 322 allow a small amount of elastic deformation or no elasticity in the direction perpendicular to the insertion direction of the signal line connector.

The elastic terminal 33 of the electrical connector 100 of the present invention has a simple structure and can be formed by stamping from a metal sheet, which is beneficial to save manufacturing costs. The electrical connector 100 of the present invention utilizes the elastic terminal 33 to form electrical conduction between the first and second detection terminals 31 and 32 to achieve the function of detection. This structure is simple and novel. In the electrical connector 100 of the present invention, the requirements for the elastic properties of the first and second detection terminals 31, 32 are not high, so metal raw materials with poor elasticity or no elasticity and low price can be used, and the first, second detection terminals 31, 32 The second detection terminals 31 and 32 have symmetrical structures and can be molded by the same set of molds, which is beneficial to save manufacturing costs.

Claims (10)

1. An electrical connector capable of inserting and connecting at least one signal line joint, comprising: an insulating body, a conductive terminal accommodated in the insulating body, and a switch device arranged on the insulating body, and the insulating body is provided with front and rear penetrating The insertion hole of the insulating body and used to accommodate the signal line connector is characterized in that: the switch device includes first and second detection terminals separately arranged, which extend into the insertion hole and can be detected when the signal line connector is inserted. Elastically deformable elastic terminal and an insulating block fixed on the elastic terminal and capable of pressing against the signal line connector, the elastic terminal can be respectively in contact with or disconnected from the first and second detection terminals when the signal line connector is inserted or pulled out Open, and then use the elastic terminal to form electrical conduction or disconnection between the first and second detection terminals. 2. The electrical connector according to claim 1, wherein the elastic terminal includes a base fixed to the front end of the insulating body and a base that extends from the end of the base into the insertion hole along the insertion direction of the signal line connector and can move up and down. The elastic arm, the front end of the elastic arm is provided with an overlapping portion that can be in contact with or disconnected from the first and second detection terminals. 3. The electrical connector as claimed in claim 2, wherein the overlapping portion is provided with a protrusion capable of contacting or disconnecting the first and second detection terminals. 4. The electrical connector according to claim 2, wherein the elastic arm is provided with a holding portion located at the rear end of the lapping portion and connected to the lapping portion, the holding portion is higher than the lapping portion, so The insulating block is clamped on the holding part. 5. The electrical connector according to claim 4, characterized in that: the elastic arm is provided with an inclined portion extending obliquely upward from the end of the base and connected to the holding portion, and the clip between the overlapping portion and the inclined portion The angle is acute. 6 . The electrical connector according to claim 4 , wherein the insulating block is provided with a positioning groove passing through the insulating block from front to back, and the holding portion is locked in the positioning groove. 7 . 7. The electrical connector according to claim 6, wherein the insulating block is provided with a front end surface located at the front end of the positioning groove and a stepped surface located at the rear end of the positioning groove, and the two ends of the holding part extend downward respectively There are a first retaining wing and a second retaining wing, and the first and second retaining wings respectively press against the front end surface and the stepped surface to position the insulating block. 8. The electrical connector according to claim 7, wherein the insulating block includes a first side edge located on one side of the insulating block and connected to the front end surface and the stepped surface, and the first side edge is concave inward An installation opening communicating with the positioning groove is provided to guide the installation of the holding part. 9. The electrical connector according to claim 1, characterized in that: the first and second detection terminals respectively have first and second conflicting parts which contact or disconnect with the elastic terminal, and the first and second detection terminals respectively The second interference part is located in the same horizontal plane. 10. The electrical connector according to claim 1, wherein the structures of the first and second detection terminals are symmetrical in the left and right directions, and the first detection terminal includes a The first fixing part, the first abutting part spaced apart from the first fixing part, and the first connecting part respectively connected to the first abutting part and one end of the first fixing part, the first fixing part, the first abutting part and the first fixing part A connecting portion is located on the same plane.

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