PCB contact integrated charging socket
By setting sockets and crown springs at the connection between the terminals and the PCB board, the problem of unstable connection between the PCB board and the terminals is solved, resulting in a more stable electrical connection and improving the reliability and safety of the charging socket.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-03-13
AI Technical Summary
In existing PCB contact integrated charging sockets, the connection between the PCB board and the terminals is unstable and easily separates during insertion and removal, leading to functional failure.
Design a PCB contact integrated charging socket, which sets a socket at one end of the terminal for conductive connection to the PCB board, and uses a crown spring to rivet into the socket. The inner side wall of the crown spring elastically clamps the contact, ensuring a stable connection between the terminal and the PCB board during insertion and removal.
This improves the stability and reliability of the charging socket, avoids contact separation between the terminals and the PCB board during insertion and removal, and enhances the safety and efficiency of the charging process.
Smart Images
Figure CN223993408U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of new energy charging system technology, and in particular to a PCB contact integrated charging socket. Background Technology
[0002] With the rapid development of new energy technologies, electric vehicles are becoming increasingly widely used. The main function of an electric vehicle charging socket is to achieve electrical connection between the car's charging plug and the charging gun in the socket, ensuring stable charging operations. Therefore, to guarantee the stability of the electric vehicle charging process, car manufacturers are paying increasing attention to the structure of electric vehicle charging sockets.
[0003] The PCB board in an electric vehicle charging socket is one of its core components. Its main functions include: power transmission and conversion, where the PCB board converts and distributes power from the external power source to ensure safe and efficient power transfer to the electric vehicle's battery; charging control and management, where the PCB board typically integrates charging control chips and related circuits to monitor and manage the entire charging process. It can automatically adjust charging parameters based on the battery status to ensure safe and efficient charging; and signal processing and communication, where the PCB board handles various signals, including communication with the charging equipment and the vehicle's battery management system (BMS). For example, the PCB board can communicate with the vehicle's BMS via low-voltage signal lines to monitor the battery's charging status in real time and provide relevant information to the user. The PCB board also integrates safety protection mechanisms such as overvoltage protection, overcurrent protection, and short-circuit protection. These protection mechanisms effectively prevent safety accidents caused by electrical faults and are key components for ensuring a safe, efficient, and reliable charging process.
[0004] In current PCB-integrated charging sockets, the PCB board is connected to the terminals via bolts and insulators, thus integrating the PCB board contacts into the charging socket. However, in this type of PCB-integrated charging socket, the PCB board is easily separated from the terminals due to the impact force generated during the plugging and unplugging process. This unstable internal connection can lead to PCB board malfunction. Utility Model Content
[0005] The purpose of this utility model is to address the problem in existing PCB contact integrated charging sockets where unstable connections between terminals and the PCB board can easily lead to PCB board malfunction. This utility model provides a PCB contact integrated charging socket, comprising: a housing, an insulator, terminals, a fixing component, a PCB board, and a crown spring. The terminals are detachably and fixedly connected to the fixing component; the fixing component is detachably and fixedly connected to the insulator; the insulator is detachably and fixedly connected to the housing; one end of the terminal for contacting the PCB board has a socket; the PCB board has a contact component capable of conducting through the socket; the crown spring can be riveted into the socket; the inner sidewall of the crown spring can elastically clamp the contact component; the PCB board is detachably and fixedly connected to the fixing component; the contact component and the crown spring are metal parts.
[0006] The PCB contact integrated charging socket of this utility model features a socket at one end of the terminal used for conductive connection to the PCB board. This socket allows the PCB board's contacts to be inserted, achieving a conductive connection between the terminal and the PCB board. By designing a crown spring and its shape and size, the crown ring can be riveted into the socket. After the contact is inserted into the socket, the inner wall of the crown spring elastically clamps against the contact. During the insertion and removal of the charging socket, if the terminal shakes and impacts the PCB board, the elastic clamping action of the crown spring provides elastic recovery, maintaining the contact connection between the inner wall of the crown spring and the contact, preventing separation of the terminal and the PCB board, and making the conductive connection between the terminal and the PCB board more stable, thus improving the stability and reliability of the charging socket.
[0007] Preferably, in the PCB contact integrated charging socket of this utility model, the crown spring is cylindrical; the sidewall of the crown spring is an elastic curved surface with a concave center.
[0008] As a preferred embodiment of this utility model, by setting the crown spring to a cylindrical shape, it is easy to rivet the two ends of the crown spring to the insertion hole, making the contact connection between the crown spring and the insertion hole more stable. In conjunction with this, the side wall of the crown spring is set to be an elastic curved surface with a concave center, which can enhance the lateral clamping effect on the contact element while maintaining elasticity, and further improve the stability of the contact connection between the terminal and the PCB board.
[0009] Preferably, in the PCB contact integrated charging socket of this utility model, the crown spring includes: a first fixed end, a second fixed end, and a plurality of elastic strips arranged circumferentially along the first fixed end and the second fixed end; both the first fixed end and the second fixed end are used to abut against the inner wall of the socket; the two ends of the elastic strips are respectively fixedly connected to the first fixed end and the second fixed end.
[0010] As a preferred embodiment of this utility model, by setting a first fixed end and a second fixed end, the contact connection strength between the crown spring and the socket can be increased, and the supporting and fixing strength can also be provided; combined with multiple elastic strips arranged in a circumferential array and fixed at both ends to the first fixed end and the second fixed end, the elastic recovery performance of the crown spring is enhanced, the risk of contact separation between the terminal and the PCB board during the plugging and unplugging of the charging socket is reduced, and the stability and reliability of the charging socket are further improved.
[0011] Preferably, in the PCB contact integrated charging socket of this utility model, the middle part of the elastic strip is bent inward.
[0012] As a preferred embodiment of this utility model, by setting the middle of the elastic strip to bend inward, the elastic clamping effect of the crown spring on the side wall of the contact member can be further enhanced, and the stability of the contact connection between the contact member and the crown spring can be further improved.
[0013] Preferably, in the PCB contact integrated charging socket of this utility model, the first fixed end and / or the second fixed end have a fracture notch.
[0014] As a preferred embodiment of this utility model, by setting a fracture notch, an inward space can be provided for the crown spring to be riveted into the socket. With the help of the elastic deformation of the metal part, the crown spring riveting is smoother and more convenient, and the difficulty and damage rate of crown spring installation are reduced, thereby further improving the product quality of the charging socket.
[0015] Preferably, in the PCB contact integrated charging socket of this utility model, the terminal is provided with a rivet joint at the position of the socket; the end of the crown spring is interference-fitted to the rivet joint.
[0016] As a preferred embodiment of this utility model, by setting a rivet joint, the firmness of the crown spring being riveted into the socket is improved, the risk of the crown spring coming out or separating is reduced, and the stability of the conductive connection between the terminal and the contact is further enhanced.
[0017] Preferably, in the PCB contact integrated charging socket of this utility model, the end of the terminal near the PCB board is provided with an inwardly recessed protrusion, and the end of the crown spring can abut against the protrusion along the insertion direction.
[0018] As a preferred embodiment of this utility model, by providing the protrusion, after the crown spring is riveted, the end of the crown spring can abut against the protrusion along the insertion direction, reducing the risk of the crown spring coming out or separating, and further enhancing the stability of the conductive connection between the terminal and the contact.
[0019] Preferably, in the PCB contact integrated charging socket of this utility model, the outer wall of the terminal near the PCB board protrudes outward to form a columnar fixing section and a boss.
[0020] As a preferred embodiment of this utility model, by providing a columnar fixing section, the end face of the columnar fixing section can be pressed against the fixing member along the insertion direction, thereby further enhancing the firmness of the terminal fixing and improving the reliability of the charging socket.
[0021] Preferably, in the PCB contact integrated charging socket of this utility model, the columnar fixing section is a hexagonal prism.
[0022] As a preferred embodiment of this utility model, by setting the columnar fixing section as a hexagonal prism, the side of the hexagonal prism can fit against the insulator, which can prevent the terminal from rotating radially relative to the insulator or fixing member, and further enhance the stability of the charging socket charging connection.
[0023] Preferably, in the PCB contact integrated charging socket of this utility model, the fixing member is bolted to the insulator by a first screw along the insertion direction; the insulator is bolted to the housing by a second screw along the insertion direction; and the PCB board is bolted to the fixing member by a third screw along the insertion direction.
[0024] As a preferred embodiment of this utility model, the fastener, insulator, PCB board and housing are bolted together by setting the first screw, the second screw and the third screw along the insertion direction. This not only consumes the insertion force of the socket during the insertion and removal process, but also facilitates assembly and installation, improves the efficiency of product assembly, further enhances the reliability of the charging socket, and improves the production efficiency of the product.
[0025] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:
[0026] By providing a socket at one end of the terminal for conductive connection to the PCB board, the PCB board contacts can be inserted to achieve a conductive connection, thus enabling conductivity between the terminal and the PCB board. By designing a crown spring and its shape and size, the crown ring can be riveted into the socket. After the contact is inserted into the socket, the inner wall of the crown spring elastically clamps against the contact. During the plugging and unplugging process of the charging socket, if the terminal shakes and impacts the PCB board, the elastic clamping action of the crown spring provides elastic recovery, maintaining the contact connection between the inner wall of the crown spring and the contact, preventing separation of the terminal and the PCB board, making the conductive connection between the terminal and the PCB board more stable, and improving the stability and reliability of the charging socket. Attached Figure Description
[0027] Figure 1 This is an exploded view of the structure of this utility model;
[0028] Figure 2 This is a schematic diagram of the crown spring of this utility model;
[0029] Figure 3 This is a top view of the structure of this utility model;
[0030] Figure 4 yes Figure 3 Sectional view of line AA in the middle;
[0031] Figure 5 yes Figure 4 A magnified view of a portion of coil B;
[0032] Figure 6 This is a schematic diagram of the terminal structure of this utility model;
[0033] Icons: 1. Housing; 2. Insulator; 3. Terminal; 31. Socket; 32. Rivet joint; 33. Protrusion; 34. Columnar fixing section; 35. Boss; 4. Fixing component; 5. PCB board; 51. Contact component; 6. Crown spring; 61. First fixing end; 62. Second fixing end; 63. Elastic strip; 64. Fracture notch; 7. First screw; 8. Second screw; 9. Third screw. Detailed Implementation
[0034] The present invention will now be described in detail with reference to the accompanying drawings.
[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model 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 used to explain this utility model and are not intended to limit this utility model.
[0036] Example 1:
[0037] like Figure 1 and Figure 5 As shown, this utility model discloses a PCB contact integrated charging socket, including: a housing 1, an insulator 2, a terminal 3, a fixing member 4, a PCB board 5, and a crown spring 6; the terminal 3 is detachably and fixedly connected to the fixing member 4; the fixing member 4 is detachably and fixedly connected to the insulator 2; the insulator 2 is detachably and fixedly connected to the housing 1; one end of the terminal 3 used for conductive connection to the PCB board 5 is provided with a socket 31; the PCB board 5 is provided with a contact member 51 capable of conductive connection to the socket 31; the crown spring 6 can be riveted into the socket 31; the inner sidewall of the crown spring 6 can elastically clamp the contact member 51; the PCB board 5 is detachably and fixedly connected to the fixing member 4; the contact member 51 and the crown spring 6 are metal parts.
[0038] It should be noted that the riveting is understood as the crown spring 6 having elastic deformation properties. The shape and size of the socket 31 and the crown spring 6 are set according to the actual installation needs. Through the riveting process, the crown spring 6 can be installed into the socket 31. The outer ends of the crown spring 6 can contact and connect with the inner wall of the socket 31. Since the crown spring 6, the socket 31 and the contact 51 are all metal parts, the contact 51 of the PCB board 5 can make contact with the side of the crown spring 6, so as to conduct the signal or electricity of the terminal 3 to the PCB board 5.
[0039] The conductive connection described in this utility model is understood to mean that the crown spring 6, the contact 51, and the terminal 3 are all metal parts. After the crown spring 6, the contact 51, and the terminal 3 are connected in pairs, electrical or electrical signal conduction can be achieved.
[0040] For details, please refer to Figure 2 and Figure 5 As shown, the crown spring 6 is cylindrical; the sidewall of the crown spring 6 is an elastic curved surface with a concave center, thus possessing elastic properties. The concave sidewall of the cylindrical crown spring 6, combined with the elastic properties of the metal, can clamp onto the contact 51 of the PCB board 5.
[0041] In this embodiment, reference Figure 2 As shown, the crown spring 6 can also be configured to include: a first fixed end 61, a second fixed end 62, and a plurality of elastic strips 63 arranged circumferentially along the first fixed end 61 and the second fixed end 62; the first fixed end 61 and the second fixed end 62 are both used to abut against the inner wall of the insertion hole 31; the two ends of the elastic strip 63 are respectively fixedly connected to the first fixed end 61 and the second fixed end 62, and more specifically, the middle part of the elastic strip 63 is bent inward.
[0042] It should be noted that the fastener 4 is understood to be a specific structural component or plate-like component that can be used to fix other components, such as... Figure 1 The fixing plate shown has holes for mounting the terminal 3 and mounting the body to the insulator 2. The fixing member 4 and the PCB board 5 can be fastened together by bolts.
[0043] The insulator 2 of this utility model is referenced. Figure 1 The shape shown includes two insulators 2 arranged at the top and bottom respectively, with holes for inserting terminals 3, and also a shape that mates with the fixing plate and housing 1. The contact 51 is understood as a component provided on the PCB board 5 for conductive connection, see reference... Figure 4 and Figure 5 As shown, for example, a contact needle.
[0044] For ease of installation or riveting of crown spring 6, please refer to... Figure 2As shown, specifically, the first fixing end 61 and / or the second fixing end 62 have a fracture notch 64. Correspondingly, the terminal 3 is provided with a rivet joint 32 at the position of the socket 31; the end of the crown spring 6 is interference-fitted to the rivet joint 32.
[0045] In this embodiment, specifically, refer to... Figure 6 The terminal 3 has an inwardly recessed protrusion 33 at one end near the PCB board 5, and the end of the crown spring 6 can abut against the protrusion 33 in the insertion direction.
[0046] Specifically, the outer wall of terminal 3 near the PCB board 5 protrudes outward to form a columnar fixing section 34 and a boss 35. More specifically, for example, the columnar fixing section 34 is a hexagonal prism.
[0047] It should be noted that, as Figure 1 As shown, the detachable fixed connection is understood to mean that before the charging socket is assembled, the fixing part 4, the insulator 2, and the housing 1 are disassembled components. (Refer to...) Figure 3 and Figure 5 As shown, after the charging socket is assembled, the insulator 2, the fixing member 4, and the housing 1 can be detachably fixed by bolts or snap-fits due to their shape, size, and fixing position design. For details, refer to... Figure 1 As shown, the fastener 4 is bolted to the insulator 2 by the first screw 7 along the insertion direction; the insulator 2 is bolted to the housing 1 by the second screw 8 along the insertion direction; the PCB board 5 is bolted to the fastener 4 by the third screw 9 along the insertion direction.
[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A PCB contact integrated charging receptacle, characterized in that, The utility model relates to a kind of terminal, including: shell (1), insulator (2), terminal (3), fixing piece (4), PCB board (5) and crown spring (6);The terminal (3) is detachably fixedly connected in the fixing piece (4);The fixing piece (4) is detachably fixedly connected in the insulator (2);The insulator (2) is detachably fixedly connected in the shell (1);The terminal (3) is used for the one end of the PCB board (5) being provided with jack (31) for through connection;The PCB board (5) is provided with the contact piece (51) capable of through connection jack (31);The crown spring (6) can be riveted in jack (31);The inner side wall of the crown spring (6) can be elastically clamped to the contact piece (51);The PCB board (5) is detachably fixedly connected in the fixing piece (4);The contact piece (51) and the crown spring (6) are metal parts. The crown spring (6) is cylindrical;The side wall of the crown spring (6) is a resilient curved surface with a concave middle portion.
2. The PCB contact integrated charging receptacle of claim 1, wherein, The crown spring (6) includes: a first fixed end (61), a second fixed end (62), and a plurality of elastic strips (63) arranged circumferentially along the first fixed end (61) and the second fixed end (62);The first fixed end (61) and the second fixed end (62) are both used for abutting against the inner wall of the jack (31);The two ends of the elastic strip (63) are fixedly connected to the first fixed end (61) and the second fixed end (62) respectively.
3. The PCB contact integrated charging receptacle of claim 1, wherein, The middle portion of the elastic strip (63) is bent inward.
4. The PCB contact integrated charging receptacle of claim 3, wherein, The first fixed end (61) and / or the second fixed end (62) are provided with a fracture notch (64).
5. The PCB contact integrated charging receptacle of claim 4, wherein, The terminal (3) is provided with a riveting head (32) at the position of the jack (31);The end of the crown spring (6) is connected to the riveting head (32) by interference fit.
6. The PCB contact integrated charging receptacle of claim 1, wherein, The terminal (3) is provided with an inwardly recessed protruding portion (33) at the end close to the PCB board (5), and the end of the crown spring (6) can abut against the protruding portion (33) in the direction of insertion.
7. The PCB contact integrated charging receptacle of claim 1, wherein, The terminal (3) is provided with an outwardly convex outer wall at the end close to the PCB board (5), forming a cylindrical fixed segment (34) and a boss (35).
8. The PCB contact integrated charging receptacle of claim 1, wherein, The cylindrical fixed segment (34) is a hexagonal prism.
9. The PCB contact integrated charging receptacle of claim 8, wherein, The fixing piece (4) is bolted to the insulator (2) in the direction of insertion by a first screw (7);The insulator (2) is bolted to the shell (1) in the direction of insertion by a second screw (8);The PCB board (5) is bolted to the fixing piece (4) in the direction of insertion by a third screw (9).
10. The PCB contact-integrated charging receptacle of any one of claims 1-9, wherein,