A socket of an electrical connector and an electrical connector

Abstract

The application belongs to the technical field of electric connectors, and particularly relates to a socket of an electric connector and the electric connector. The socket of the electric connector comprises a plug and a socket matched with each other, and further comprises a locking structure for locking the plug and the socket. The socket comprises a shell provided with an L-shaped mounting cavity. An L-shaped contact module is arranged in the mounting cavity. The contact module comprises a horizontal part for matching with the plug of the electric connector, a vertical part perpendicular to the horizontal part, and a transition part between the horizontal part and the vertical part. The horizontal part is movably arranged along the insertion direction of the plug and the socket, the vertical part is fixedly arranged, and the transition part is an elastic part. The transition part is used for enabling the plug to push the horizontal part to retreat in the mounting cavity and be elastically deformed when the plug and the socket are matched with each other. When the plug and the socket are inserted in place and locked by the locking structure, the horizontal part of the contact module of the socket is in a retreated state.

Description

Technical Field

[0001] This invention belongs to the field of electrical connector technology, specifically relating to an electrical connector socket and an electrical connector. Background Technology

[0002] Electrical connectors include sockets and plugs. Sockets are used to fix the connectors to the corresponding PCB board or electrical equipment. The socket end face has a socket. The plug is a free part used to connect to the cable. The plug has pins for mating into the socket to realize electrical connection and data transmission.

[0003] The sockets in the prior art, such as the electrical connector disclosed in patent document CN111628352B, include a housing with an L-shaped mounting cavity (i.e., the tunnel of the tube in the patent document). The L-shaped mounting cavity has a horizontal section and a vertical section. A bent pin (i.e., the guide line in the patent document) is provided in the mounting cavity. Support members are provided on both the vertical and horizontal portions of the pin. The two support members are used to support and cooperate with the cavity wall of the mounting cavity. The outer peripheral surface of the support member of the horizontal portion has a protrusion. The cover presses the protrusion between the cover and the base. The support member of the vertical section is also pressed between the cover and the base, thereby fixing the pin to the housing.

[0004] The existing plug and socket are locked in place using a snap-locking mechanism. To ensure that the locking mechanisms on the plug and socket can cooperate, the part of the plug used for insertion into the socket is designed to be shorter than the part of the socket used for plug insertion. Although this ensures locking of the plug and socket, a gap will exist at the insertion interface. Air in the gap will increase the impedance, which is not conducive to data transmission and is prone to fretting corrosion. Summary of the Invention

[0005] The purpose of this invention is to provide a socket for an electrical connector to solve the technical problem of poor data transmission performance in existing electrical connectors. This invention also provides an electrical connector to solve the technical problem of poor data transmission efficiency in existing electrical connectors.

[0006] To achieve the above objectives, the technical solution for the electrical connector socket provided by the present invention is as follows: an electrical connector socket includes a housing with an L-shaped mounting cavity, an L-shaped contact module in the mounting cavity, the contact module including a horizontal portion for adapting to the plug of the electrical connector, a vertical portion perpendicular to the horizontal portion, and a transition portion located between the horizontal portion and the vertical portion, the horizontal portion being movably arranged along the insertion direction of the plug and the socket, the vertical portion being fixedly arranged, and the transition portion being an elastic portion, which is used to allow the plug to push the horizontal portion back in the mounting cavity and undergo elastic deformation when the plug and the socket are mated.

[0007] The beneficial effects are as follows: Compared with the prior art where the support member in the socket is fixed in the mounting cavity, the transition part of the contact module of the electrical connector provided by the present invention is an elastic member, and the lateral part can be movably assembled in the mounting cavity. This allows the plug to fit against the lateral part of the socket when the plug and socket are mated, and while maintaining the fit, push the lateral part back in the mounting cavity to ensure that the plug and socket can be locked by the locking structure. In addition, under the rebound force of the transition part, the mating interface of the plug and socket can remain in a mating state until the mating is completed. The gap of the mating interface is small, which reduces the impedance of the mating interface, improves the data transmission effect of the electrical connector, and is less prone to fretting corrosion.

[0008] As a further improvement, the transition section has a flat structure.

[0009] The beneficial effect is that the flat transition section is more conducive to elastic deformation and rebound.

[0010] As a further improvement, the transverse portion is provided with a horizontal support member for supporting the transverse portion in the mounting cavity, and a rear stop structure is provided in the mounting cavity on the rear side of the horizontal support member.

[0011] The beneficial effect is that a stop structure is set on the rear side of the horizontal support to prevent the pins from springing back on their own under the elastic force of the transition section during installation, which would affect the subsequent connection of the plug.

[0012] As a further improvement, the rear stop structure is a stop block provided on the cavity wall of the mounting cavity and on one of the horizontal supports, and the other is provided with a spring claw for elastically opening when the contact module is assembled from back to front to stop and engage with the stop block in the front-rear direction.

[0013] The beneficial effects are: the front stop structure is a stop block, which cooperates with the spring claw to limit the horizontal support component. The structure is simple and easy to manufacture.

[0014] As a further improvement, a front stop structure is provided on the cavity wall of the mounting cavity on the front side of the horizontal support.

[0015] The beneficial effect is that the front stop structure blocks the front side of the contact module, making installation easier.

[0016] As a further improvement, the front stop structure is a stop plate, and a stop step is provided on the front end face of the horizontal support member. The stop plate and the stop step are in a stop-stopping fit.

[0017] The beneficial effect is that the stop step and the stop step work together to prevent the stop plate from affecting the plug insertion.

[0018] As a further improvement, the housing includes a metal housing, a vertical support member is provided on the vertical portion of the contact module, and a slot is provided on the metal housing for the vertical support member to be snapped in from back to front.

[0019] The beneficial effect is that the slot can stop the vertical support from the top, bottom and front.

[0020] As a further improvement, the housing also includes a stop for blocking the rear side of the vertical support.

[0021] The beneficial effect is that the stopper blocks the rear side of the vertical support, which can fix the vertical support in the shell.

[0022] As a further improvement, a baffle insertion hole is provided on the metal housing at the position corresponding to the vertical part of the contact module. A metal baffle extending vertically is inserted into the baffle insertion hole to block the vertical support.

[0023] The beneficial effect is that the metal baffle is inserted into the metal housing to stop the vertical support, which facilitates installation.

[0024] As a further improvement, the metal baffle is provided with a cover plate for sealing the baffle insertion hole.

[0025] The beneficial effect is that the cover plate makes it easier to install metal baffles.

[0026] As a further improvement, the socket also includes a plastic housing for mounting on a metal housing, with snap-fit ​​fasteners on the underside of the cover and snap-fit ​​mounting holes on the plastic housing.

[0027] The beneficial effect is that the cover plate fixes the metal baffle to the plastic and metal housings, which helps to improve the overall strength of the socket.

[0028] The technical solution for electrical connection provided by this invention is as follows: an electrical connector, including a plug and a socket adapted for mating and insertion, and a locking structure for locking the plug and the socket. The socket includes a housing with an L-shaped mounting cavity, and an L-shaped contact module is provided in the mounting cavity. The contact module includes a horizontal portion adapted to the plug of the electrical connector, a vertical portion perpendicular to the horizontal portion, and a transition portion located between the horizontal portion and the vertical portion. The horizontal portion is movably arranged along the mating direction of the plug and the socket, the vertical portion is fixedly arranged, and the transition portion is an elastic portion. The transition portion is used to allow the plug to push the horizontal portion backward in the mounting cavity and undergo elastic deformation when the plug and the socket are mated. When the plug and the socket are mated in place and locked by the locking structure, the horizontal portion of the contact module of the socket is in a backward state.

[0029] The beneficial effects are as follows: Compared with the prior art where the support member in the socket is fixed in the mounting cavity, the electrical connector provided by the present invention has an elastic transition part in the contact module, and the lateral part can be movably assembled in the mounting cavity. This allows the plug to fit against the lateral part of the socket when the plug and socket are mated, and while maintaining this fit, push the lateral part back in the mounting cavity to ensure that the plug and socket can be locked by the locking structure. In addition, under the rebound force of the transition part, the mating interface of the plug and socket can remain in a mating state until the mating is completed. The gap at the mating interface is small, which reduces the impedance of the mating interface, improves the data transmission effect of the electrical connector, and is less prone to fretting corrosion.

[0030] As a further improvement, the transition section has a flat structure.

[0031] The beneficial effect is that the flat transition section is more conducive to elastic deformation and rebound.

[0032] As a further improvement, the transverse portion is provided with a horizontal support member for supporting the transverse portion in the mounting cavity, and a rear stop structure is provided in the mounting cavity on the rear side of the horizontal support member.

[0033] The beneficial effect is that a stop structure is set on the rear side of the horizontal support to prevent the pins from springing back on their own under the elastic force of the transition section during installation, which would affect the subsequent connection of the plug.

[0034] As a further improvement, the rear stop structure is a stop block provided on the cavity wall of the mounting cavity and on one of the horizontal supports, and the other is provided with a spring claw for elastically opening when the contact module is assembled from back to front to stop and engage with the stop block in the front-rear direction.

[0035] The beneficial effects are: the front stop structure is a stop block, which cooperates with the spring claw to limit the horizontal support component. The structure is simple and easy to manufacture.

[0036] As a further improvement, a front stop structure is provided on the cavity wall of the mounting cavity on the front side of the horizontal support.

[0037] The beneficial effect is that the front stop structure blocks the front side of the contact module, making installation easier.

[0038] As a further improvement, the front stop structure is a stop plate, and a stop step is provided on the front end face of the horizontal support member. The stop plate and the stop step are in a stop-stopping fit.

[0039] The beneficial effect is that the stop step and the stop step work together to prevent the stop plate from affecting the plug insertion.

[0040] As a further improvement, the housing includes a metal housing, a vertical support member is provided on the vertical portion of the contact module, and a slot is provided on the metal housing for the vertical support member to be snapped in from back to front.

[0041] The beneficial effect is that the slot can stop the vertical support from the top, bottom and front.

[0042] As a further improvement, the housing also includes a stop for blocking the rear side of the vertical support.

[0043] The beneficial effect is that the stopper blocks the rear side of the vertical support, which can fix the vertical support in the shell.

[0044] As a further improvement, a baffle insertion hole is provided on the metal housing at the position corresponding to the vertical part of the contact module. A metal baffle extending vertically is inserted into the baffle insertion hole to block the vertical support.

[0045] The beneficial effect is that the metal baffle is inserted into the metal housing to stop the vertical support, which facilitates installation.

[0046] As a further improvement, the metal baffle is provided with a cover plate for sealing the baffle insertion hole.

[0047] The beneficial effect is that the cover plate makes it easier to install metal baffles.

[0048] As a further improvement, the socket also includes a plastic housing for mounting on a metal housing, with snap-fit ​​fasteners on the underside of the cover and snap-fit ​​mounting holes on the plastic housing.

[0049] The beneficial effect is that the cover plate fixes the metal baffle to the plastic and metal housings, which helps to improve the overall strength of the socket. Attached Figure Description

[0050] Figure 1 A schematic diagram of the structure of the socket of the electrical connector provided by the present invention;

[0051] Figure 2 for Figure 1 Disassembly diagram;

[0052] Figure 3 for Figure 2 Schematic diagram of the structure of the metal shell;

[0053] Figure 4 for Figure 2 A schematic diagram of the structure of the middle contact module;

[0054] Figure 5 for Figure 4 The front view;

[0055] Figure 6This is a schematic diagram of the assembly of the contact module and the metal housing;

[0056] Figure 7 for Figure 2 Overall assembly drawing of all components;

[0057] Figure 8 for Figure 7 Rear view.

[0058] Explanation of reference numerals in the attached drawings: 1. Plastic housing; 2. Housing; 3. Metal housing; 4. Metal baffle; 5. Connecting post; 6. Through hole; 7. Mounting part; 8. Baffle insertion hole; 9. Insertion part; 10. Mounting hole; 11. Insertion groove; 12. Cover plate; 13. Snap-fit ​​buckle; 14. Pin; 15. Horizontal part; 16. Vertical part; 17. Transition part; 18. Horizontal support; 19. Vertical support; 20. Stop plate; 21. Stop block; 22. Spring claw; 23. Guide groove; 24. Slot; 25. Stop step; 26. Contact module. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, not all embodiments. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0060] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0061] It should be noted that, in specific embodiments of the present invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply such an actual relationship or order between these entities or operations. Furthermore, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the use of phrases such as "comprising a…" to define an element does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0062] In the description of this invention, unless otherwise explicitly specified and limited, terms such as "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0063] In the description of this invention, unless otherwise explicitly specified and limited, the term "provided with" should be interpreted broadly. For example, the object "provided with" can be a part of the body, or it can be separately arranged from the body and connected to the body. This connection can be a detachable connection or a non-detachable connection. Those skilled in the art can understand the specific meaning of the above terms in this invention through specific circumstances.

[0064] The present invention will be further described in detail below with reference to embodiments.

[0065] Embodiment 1 of the electrical connector provided in this invention:

[0066] In this embodiment, the electrical connector is an Ethernet automotive connector, including a plug and a socket. The socket is used to fix the connector to a corresponding position in the vehicle, and the plug is a free part used to connect to the cable. It has a socket so that when connected to the socket, the pins 14 on the socket can be inserted into the socket, so as to transmit the data signal in the cable to the corresponding electrical equipment through the electrical connector.

[0067] The plug includes a plug housing and a plug body. The plug body consists of a center conductor, a contact outer conductor, and a crimping outer conductor. One end of the center conductor is connected to the cable, and the other end has a socket for the insertion of pins 14. The contact outer conductor is fitted onto the center conductor, and an insulating sleeve is fixed between the contact outer conductor and the center conductor. The crimping outer conductor is fitted onto the outside of the contact outer conductor, and the plug plastic housing 1 is fixed to the outside of the crimping outer conductor. This plug is existing technology and will not be described in detail here.

[0068] like Figure 1 As shown, the socket includes a housing 2 for mounting on a corresponding electrical appliance or PCB board, a plastic housing 1 connected to the housing 2, and a metal baffle 4. The housing 2 has a mounting cavity containing an L-shaped pin 14. Figure 2 As shown, the outer circumferential surface of the plastic housing 1 is provided with a snap-fit ​​mounting groove for the snap-fit ​​adapter on the plug plastic housing to be installed, so as to realize the mating of the plug and the socket. The plastic housing 1 is provided with a central through hole 6 for the insertion part 9 of the metal housing 3 to be inserted and fixed.

[0069] like Figure 2 and Figure 3 As shown, the metal housing 3 includes a mounting part 7 and an insertion part 9. The insertion part 9 has a cylindrical structure, and its outer peripheral surface is elliptical, extending in the front-to-back direction. A through mounting hole 10 is provided on the insertion part 9 from front to back. The rear end of the insertion part 9 is connected to the front side of the mounting part 7, so that the rear opening of the mounting hole 10 penetrates the mounting part 7. The front end of the insertion part 9 extends outwards, and the front opening of the mounting hole 10 is used for the insertion of the outer contact conductor of the plug, allowing the pin 14 to be inserted into the socket of the center conductor. A front stop plate 20 and a rear stop block 21 are provided at intervals on the wall of the mounting hole 10 of the insertion part 9, such as... Figure 6 As shown, the front stop plate 20 serves as a front stop structure, and the rear stop block 21 serves as a rear stop structure to stop the front and rear sides of the horizontal support member 18 on the pin 14. That is, the distance between the stop plate 20 and the stop block 21 is the movable range of the horizontal support member 18 in the insertion part 9. The details of the pin 14 and the horizontal support member 18 will be described below.

[0070] The mounting part 7 has a box-shaped structure. Four connecting posts 5 are located at the bottom of the mounting part 7 for connection to the corresponding PCB board. An opening is provided on the rear side of the mounting part 7 to allow the L-shaped pin 14 to be inserted into the metal housing 3 from back to front. A through hole 6 is provided on the front side of the mounting part 7 for insertion of the pin 14. Figure 7 and Figure 8 As shown, the mounting part 7 is also provided with a slot 24 for the vertical support member 19 of the pin 14 to be inserted from right rear to front. The upper side of the mounting part 7 is provided with a baffle insertion hole 8 for the metal baffle 4 to be inserted from top to bottom.

[0071] like Figure 2 As shown, the metal baffle 4 is a box-shaped structure with an open bottom. The rear sidewall of the metal baffle 4 is inserted into the metal housing 3 through the baffle insertion hole 8 on the mounting part 7, forming an L-shaped mounting cavity together with the metal housing 3. The mounting 10 of the insertion part 9 forms the horizontal section of the mounting cavity, and the part enclosed by the metal housing 3 and the rear sidewall of the metal baffle 4 forms the vertical section of the mounting cavity, which is used to stop the vertical support member 19 of the pin 14. The lower edge of the front sidewall of the metal baffle 4 is an arc-shaped edge that matches the outer peripheral surface of the insertion part 9. A cover plate 12 is provided on the front edge of the upper sidewall of the metal baffle 4. A snap fastener 13 is provided on the front edge of the lower side of the cover plate 12. A snap groove is provided on the upper side of the plastic housing 1. The rear end of the cover plate 12 is connected to the metal baffle 4. The snap fastener 13 is used to snap into the snap groove on the plastic housing 1, connecting the metal baffle 4, the metal housing 3, and the plastic housing 1 together.

[0072] like Figure 4 and Figure 5 As shown, this embodiment has two pins 14, each L-shaped, including horizontal and vertical sections. The horizontal and vertical sections of each pin 14 are connected by a transition section, which is a flat elastic element that can apply force to the front end of the pin 14 to retract it. The two pins 14 are arranged in parallel and spaced apart. The horizontal sections of the two pins 14 are connected together by a horizontal support 18, and the vertical sections of the two pins 14 are connected together by a vertical support 19 to form a contact module 26. The horizontal sections of the pins 14 and the horizontal support 18 form the horizontal portion 15 of the contact module, and the vertical sections of the pins 14 and the vertical support 19 form the vertical portion 16 of the contact module. The transition section of the pins 14 is the transition portion 17 of the contact module 26. The front side of the vertical support member 19 is used to be inserted into the slot 24 of the mounting part 7, and the rear side is provided with a rear stop surface, which is used to stop and cooperate with the rear side wall of the metal baffle 4 when the metal baffle 4 is inserted into the metal housing 3, thereby fixing the vertical support member 19 in the vertical section of the L-shaped mounting cavity of the housing 2. The horizontal support member 18 is provided with a spring claw 22 on its peripheral side. The front end of the spring claw 22 is connected to the horizontal support member 18. The side of the spring claw 18 facing away from the horizontal support member is provided with a guide groove 23, so that when the transverse part 15 of the contact module 26 is inserted into the insertion part 9, the guide groove 23 slides from back to front across the stop block 21, causing the spring claw 22 to swing toward the horizontal support member 18, and spring back after passing the stop block 21, forming a stop with the stop block 21 to prevent the pin 14 from retracting.

[0073] When the plug and socket of the electrical connector are mated, the outer contact conductor of the plug is gradually inserted into the insertion part 9, so that the front end of the lateral part 15 of the contact module 14 is gradually inserted into the insertion hole of the center conductor of the plug, so that the insulating sleeve on the plug and the horizontal support 18 on the pin 14 are in close contact. Then, under the action of the transition part 17 of the pin 14, the insulating sleeve pushes the horizontal support 18 backward, so that the buckle 13 on the plug can be adapted to be snapped into the buckle 13 mounting hole on the plastic housing 1 of the socket.

[0074] The electrical connector provided by this invention, compared with the prior art where the support member in the socket is fixed in the mounting cavity, has a transition part of the contact module that is an elastic member. The lateral part can be movably assembled in the mounting cavity, so that when the plug and socket are mated, the plug can fit against the lateral part of the socket, and while maintaining the fit, it pushes the lateral part back in the mounting cavity to ensure that the plug and socket can be locked by the locking structure. In addition, under the rebound force of the transition part, the mating interface of the plug and socket can remain in a mating state until the mating is completed. The gap of the mating interface is small, which reduces the impedance of the mating interface, improves the data transmission effect of the electrical connector, and is less prone to fretting corrosion.

[0075] Embodiment 2 of the electrical connector provided in this invention:

[0076] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the insertion part 9 of the metal housing 3 is provided with a front stop plate 20. In this embodiment, the front stop plate 20 in the insertion part 9 is omitted.

[0077] Embodiment 3 of the electrical connector provided in this invention:

[0078] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the horizontal support member 18 is provided with a spring claw 22, and the wall of the mounting hole of the insertion part 9 is provided with a stop block 21. In this embodiment, the horizontal support member 18 is provided with a stop block 21, the wall of the mounting hole of the insertion part 9 is provided with a spring claw 22, and the rear end of the spring claw 22 is fixed to the insertion part 9.

[0079] Embodiment 4 of the electrical connector provided in this invention:

[0080] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the transition portion 17 is a flat structure, while in this embodiment, the transition portion 17 is a circular structure.

[0081] Embodiment 5 of the electrical connector provided in this invention:

[0082] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the stop is a metal baffle 4. In this embodiment, the stop is a pin that penetrates the mounting portion 7 of the metal housing 3, and the pin stops the rear side of the vertical support member 19.

[0083] The present invention also provides embodiments of sockets for electrical connectors:

[0084] The socket structure of the electrical connector in this embodiment is the same as that in the socket embodiment 1 described above, and will not be repeated here.

[0085] Of course, in other embodiments, the socket of the electrical connector may also use the structure of the socket in any of the embodiments of isolating switch 2 to 5, which will not be described in detail here.

[0086] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present invention shall also be included within the scope of protection of the present invention.

Claims

1. A socket for an electrical connector, comprising a housing (2) having an L-shaped mounting cavity, the housing having an insertion portion extending in a front-rear direction, the mounting cavity having an L-shaped contact module (26), the contact module (26) including a lateral portion (15) for mating with a plug of the electrical connector, a vertical portion (16) perpendicular to the lateral portion (15), and a transition portion (17) located between the lateral portion (15) and the vertical portion (16), characterized in that, The horizontal part (15) is movably arranged along the insertion direction of the plug and socket, the vertical part (16) is fixedly arranged, and the transition part (17) is an elastic part. The transition part (17) is used to allow the plug to push the horizontal part (15) back in the mounting cavity and undergo elastic deformation when the plug and socket are connected. The horizontal part is provided with a horizontal support member for supporting the horizontal part in the mounting cavity. A rear stop structure is provided on the rear side of the horizontal support member in the mounting cavity, and a front stop structure is provided on the cavity wall of the mounting cavity on the front side of the horizontal support member. The distance between the front stop structure and the rear stop structure is the movable range of the horizontal support member in the insertion part.

2. The socket of the electrical connector according to claim 1, characterized in that, The transition section (17) has a flat structure.

3. The socket of the electrical connector according to claim 1 or 2, characterized in that, The rear stop structure is a stop block (21) provided on the cavity wall of the mounting cavity and on one of the horizontal support members (18), and the other is provided with a spring claw (22) for elastically opening when the contact module (26) is assembled from back to front to stop and cooperate with the stop block (21) in the front-back direction.

4. The socket of the electrical connector according to claim 1 or 2, characterized in that, The front stop structure is a stop plate (20), and a stop step (25) is provided on the front end surface of the horizontal support member (18). The stop plate (20) and the stop step (25) are in a stop-stop cooperation.

5. The socket of the electrical connector according to claim 1 or 2, characterized in that, The housing (2) includes a metal housing (3), and a vertical support (19) is provided on the vertical part (16) of the contact module (26), and a slot (24) is provided on the metal housing (3) for the vertical support (19) to be snapped in from back to front.

6. The socket of the electrical connector according to claim 5, characterized in that, The housing (2) also includes a stop for blocking the rear side of the vertical support (19).

7. The socket of the electrical connector according to claim 6, characterized in that, A baffle insertion hole (8) is provided on the metal housing (3) at the position corresponding to the vertical part (16) of the contact module (26). A metal baffle (4) extending vertically is inserted into the baffle insertion hole (8) to block the vertical support (19).

8. The socket of the electrical connector according to claim 7, characterized in that, The metal baffle (4) is provided with a cover plate (12) for sealing the baffle insertion hole (8).

9. The socket of the electrical connector according to claim 8, characterized in that, The socket also includes a plastic housing (1) for mounting on a metal housing (3), with a snap fastener (13) on the lower side of the cover plate (12) and a snap fastener mounting hole on the plastic housing (1).

10. An electrical connector comprising a plug and a socket adapted for mating and engaging, and further comprising a locking structure for locking the plug and the socket, characterized in that, The socket includes a housing (2) with an L-shaped mounting cavity. The housing has an insertion portion extending in the front-rear direction. An L-shaped contact module (26) is provided in the mounting cavity. The contact module (26) includes a lateral portion (15) for mating with a plug of an electrical connector, a vertical portion (16) perpendicular to the lateral portion (15), and a transition portion (17) located between the lateral portion (15) and the vertical portion (16). The lateral portion (15) is movably disposed along the mating direction of the plug and the socket, the vertical portion (16) is fixedly disposed, and the transition portion (17) is an elastic portion. The plug is used to push the horizontal part (15) back into the mounting cavity and undergo elastic deformation when the plug and socket are connected. The horizontal part is provided with a horizontal support for supporting the horizontal part in the mounting cavity. A rear stop structure is provided on the rear side of the horizontal support in the mounting cavity. A front stop structure is provided on the cavity wall of the mounting cavity on the front side of the horizontal support. The distance between the front stop structure and the rear stop structure is the movable range of the horizontal support in the insertion part. When the plug and socket are inserted into place and locked by the locking structure, the horizontal part (15) of the contact module (26) of the socket is in a retracted state.

11. The electrical connector according to claim 10, characterized in that, The transition section (17) has a flat structure.

12. The electrical connector according to claim 10 or 11, characterized in that, The rear stop structure is a stop block (21) provided on the cavity wall of the mounting cavity and on one of the horizontal support members (18), and the other is provided with a spring claw (22) for elastically opening when the contact module (26) is assembled from back to front to stop and cooperate with the stop block (21) in the front-back direction.

13. The electrical connector according to claim 10 or 11, characterized in that, The front stop structure is a stop plate (20), and a stop step (25) is provided on the front end surface of the horizontal support member (18). The stop plate (20) and the stop step (25) are in a stop-stop cooperation.

14. The electrical connector according to claim 10 or 11, characterized in that, The housing (2) includes a metal housing (3), and a vertical support (19) is provided on the vertical part (16) of the contact module (26), and a slot (24) is provided on the metal housing (3) for the vertical support (19) to be snapped in from back to front.

15. The electrical connector according to claim 14, characterized in that, The housing (2) also includes a stop for blocking the rear side of the vertical support (19).

16. The electrical connector according to claim 15, characterized in that, A baffle insertion hole (8) is provided on the metal housing (3) at the position corresponding to the vertical part (16) of the contact module (26). A metal baffle (4) extending vertically is inserted into the baffle insertion hole (8) to block the vertical support (19).

17. The electrical connector according to claim 16, characterized in that, The metal baffle (4) is provided with a cover plate (12) for sealing the baffle insertion hole (8).

18. The electrical connector according to claim 17, characterized in that, The socket also includes a plastic housing (1) for mounting on a metal housing (3), with a snap fastener (13) on the lower side of the cover plate (12) and a snap fastener mounting hole on the plastic housing (1).

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