A low-voltage connector for a new energy vehicle controller
Patent Information
- Application Number
- CN202522282823.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-29
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-10-29
AI Technical Summary
The low-voltage connectors of existing new energy vehicle controllers are prone to loosening after prolonged use, resulting in poor connection stability and inadequate sealing, which can easily lead to short circuits due to water contact.
The threaded assembly connection using male and female insertion mechanisms, combined with a support mechanism to provide elastic support, ensures a tight connection between the wire core and the terminal, improving connection stability and sealing.
This effectively prevents the connector from loosening after prolonged use, ensuring good sealing and connection stability, and improving the working performance of low-voltage connectors.
Smart Images

Figure CN224935101U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive connector technology, and in particular to a low-voltage connector for a new energy vehicle controller. Background Technology
[0002] In existing technologies, new energy vehicles refer to automobiles that use unconventional vehicle fuels as a power source and integrate advanced technologies in vehicle power control and drive, forming vehicles with advanced technical principles, new technologies, and new structures. Current new energy pure electric vehicles are driven by electric energy, and the power system inside the vehicle transmits electrical energy through connectors and wiring harnesses. Therefore, the various power systems inside the vehicle have high requirements for connectors. As the "brain" of a new energy vehicle, the inverter needs to communicate with controllers such as the motor, parking brake, and vehicle. Therefore, the low-voltage connector of the inverter needs to lead out wiring harnesses in multiple directions. Conventional automotive inverters are equipped with multiple low-voltage connectors, including plugs and sockets. However, the plug and socket structures used in common low-voltage connectors have poor connection stability and are prone to loosening after long-term use. In addition, the sealing effect between the connected structures is poor. When water flows to the connection between the plug and socket, it is easy to cause water contact and short circuit.
[0003] Chinese utility model patent application number 202421335925.7 discloses a low-voltage connector for a new energy vehicle controller, comprising a socket and a plug. One end of the socket has a mounting groove, and the inner end of the mounting groove has a slot. Multiple insertion holes are evenly distributed within the inner end of the slot. One end of the plug is movably inserted into the mounting groove. A connector head is fixedly installed at one end of the plug within the slot. The connector head has conductors evenly and fixedly installed at one end, the same number as the insertion holes. The multiple conductors at one end of the connector head are movably inserted into corresponding insertion holes on the inner end of the slot. A fixing plate is fixedly installed on the outer wall of the plug, and a first fixing block is fixedly installed on the top of the fixing plate. However, during operation, gaps easily form between the plug and socket in this low-voltage connector, causing the conductors to loosen from the insertion holes. This reduces the connection stability and effectiveness of the low-voltage connector, resulting in poor contact and affecting its working performance. Summary of the Invention
[0004] The purpose of this invention is to provide a low-voltage connector for a new energy vehicle controller.
[0005] To achieve the above objectives, the technical solution proposed by this utility model is as follows: A low-voltage connector for a new energy vehicle controller includes a wire core electrically connected to the vehicle controller. It also includes a male connector mechanism for forming a kit-type male connector structure, a support mechanism for forming a flexible support structure, and a female connector mechanism for forming a nested female connector structure. The male connector mechanism is arranged on the outer side of the end of the wire core away from the vehicle controller. The support mechanism is arranged on the inner side of the male connector mechanism corresponding to the wire core. The female connector mechanism is assembled on one end of the male connector mechanism.
[0006] The male connector mechanism includes a male connector end, a male connector sleeve, and a male connector base. The male connector end is sleeved on the outer side of the end of the wire core away from the vehicle controller and is fixedly connected to the male connector end. The male connector sleeve is disposed on one side of the male connector end and is fixedly connected to the male connector end. The male connector base is disposed on the end of the male connector sleeve away from the male connector end and is fixedly connected to the male connector sleeve.
[0007] It also includes an inner assembly ring, which is disposed on the inner side of the male connector base and integrally formed with the male connector base, and the inner side of the inner assembly ring is provided with an internal thread.
[0008] The male connector end is configured with an arc-shaped end structure, and the male connector shell is configured with a cylindrical shell structure. The interior of the male connector end and the male connector shell is configured with a hollow structure. The male connector end, the male connector shell, the male connector base, and the assembly inner ring together constitute a packaged male connector structure. The end of the wire core away from the vehicle controller protrudes from the packaged male connector structure.
[0009] The support mechanism includes a support base, a support core tube, support blocks, and elastic components. The support base is disposed inside the male connector housing and is fixedly connected to the male connector housing. The support base has a mounting through hole in the middle. The wire core passes through the support base through the mounting through hole. The support core tube is assembled on the outside of the wire core and fixedly connected to the wire core, corresponding to the support base. The support core tube is located inside the mounting through hole and has a limiting protrusion at its end. There are several support blocks, which are evenly spaced and arranged around the end of the support core tube away from the male connector end and fixedly connected to the support core tube. There are several sets of elastic components, which are respectively disposed between several support blocks and the support base.
[0010] The elastic component includes an elastic base block, an elastic mounting block, and a support spring. Two elastic base blocks are provided, each disposed on a side adjacent to the support base or the support stop and fixedly connected to the corresponding support base or support stop. Two elastic mounting blocks are also provided, each disposed on a side adjacent to the two elastic base blocks and fixedly connected to the corresponding elastic base block. Mounting grooves are provided on opposite sides of the two elastic mounting blocks. The support spring is disposed between the two elastic mounting blocks, with both ends fixedly connected to the two elastic mounting blocks. The end of the support spring is located inside the mounting groove of the elastic mounting block.
[0011] It also includes an elastic limiting post, which is disposed between the two elastic mounting blocks and has one end fixedly connected to one of the elastic mounting blocks. The other end of the elastic limiting post is spaced apart from the other elastic mounting block, and the two ends of the elastic limiting post are respectively located inside the mounting grooves of the two elastic mounting blocks.
[0012] The female connector mechanism includes a female connector housing, a female connector core tube, and a female connector terminal. The female connector housing is located on the side of the male connector base away from the male connector housing and is threadedly connected to the male connector base through an inner mounting ring. The female connector core tube is located inside the female connector housing and is fixedly connected to the female connector housing. The female connector terminal is located in the middle of the inner side of the female connector core tube and is embedded in the female connector core tube.
[0013] It also includes a connecting wire, which is disposed at the end of the female socket housing away from the male base and is inserted into the female socket housing. The connecting wire passes through the female socket housing and one end is electrically connected to the female terminal. The end of the connecting wire away from the female terminal is electrically connected to the automotive electronic control system.
[0014] The end of the wire core furthest from the male connector is inserted into the female connector tube and electrically connected to the female connector terminal.
[0015] The beneficial effects of this utility model are: It features a male and female insertion mechanism that work together with a threaded connection to prevent loosening after prolonged use. The connection point has excellent sealing properties and a support mechanism that provides elastic support to the wire core to ensure a tight connection between the wire core and the terminal. This ensures the connection stability and effectiveness of the low-voltage connector and improves its performance. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2This is a schematic diagram of the male insertion mechanism and the wire core of this utility model; Figure 3 This is a cross-sectional view of the elastic component of this utility model.
[0017] In the diagram: 1. Wire core; 2. Male connector end; 3. Male connector sleeve; 4. Male connector base; 5. Assembly inner ring; 6. Support base; 7. Support core tube; 8. Support stop; 9. Elastic base block; 10. Elastic mounting block; 11. Support spring; 12. Elastic limit post; 13. Female connector sleeve; 14. Female connector core tube; 15. Female connector terminal; 16. Connecting wire. Detailed Implementation
[0018] The present invention will now be described in further detail with reference to the accompanying drawings. A low-voltage connector for a new energy vehicle controller includes a wire core 1 electrically connected to the vehicle controller. It also includes a male connector mechanism for forming a packaged male connector structure, a support mechanism for forming a flexible support structure, and a female connector mechanism for forming a nested female connector structure. The male connector mechanism is located on the outer side of the end of the wire core 1 furthest from the vehicle controller. The support mechanism is positioned on the inner side of the male connector mechanism corresponding to the wire core 1. The female connector mechanism is assembled at one end of the male connector mechanism. A schematic diagram of the overall structure of this invention is shown below. Figure 1 As shown.
[0019] The male connector mechanism includes a male connector end 2, a male connector housing 3, and a male connector base 4. The male connector end 2 is fitted onto the outer side of the end of the wire core 1 furthest from the vehicle controller and is fixedly connected to the male connector end 2. The male connector housing 3 is located on one side of the male connector end 2 and is fixedly connected to the male connector end 2. The male connector base 4 is located on the end of the male connector housing 3 furthest from the male connector end 2 and is fixedly connected to the male connector housing 3. The male connector end 2 is an arc-shaped end structure, and the male connector housing 3 is a cylindrical housing structure. The interiors of the male connector end 2 and the male connector housing 3 are hollow structures. The male connector end 2, the male connector housing 3, the male connector base 4, and the inner assembly ring 5 together constitute a set. The male connector structure has one end of the wire core 1 protruding from the assembly structure away from the vehicle controller. The male connector mechanism, consisting of a male connector end 2, a male connector housing 3, and a male connector base 4, forms an assembly structure to meet the insertion requirements of the wire core 1. The male connector end 2 serves as the outer end structure of the wire core 1 to meet the installation requirements of the male connector housing 3. The male connector housing 3, together with the male connector end 2, forms a housing structure and provides installation support for the male connector base 4. The male connector base 4, together with the male connector end 2 and the male connector housing 3, forms an assembly structure to meet the insertion requirements of the wire core 1. A schematic diagram of the male connector mechanism and its assembly with the wire core 1 is shown below. Figure 2 As shown.
[0020] It also includes an inner assembly ring 5, which is disposed on the inner side of the male base 4 and integrally formed with the male base 4. The inner side of the inner assembly ring 5 is provided with an internal thread. The inner assembly ring 5 is used as an assembly structure on the inner side of the male base 4, which can realize the assembly connection between the male structure and the female structure and ensure the sealing of the connection between the two.
[0021] The support mechanism includes a support base 6, a support core tube 7, support blocks 8, and elastic components. The support base 6 is located inside the male connector housing 3 and is fixedly connected to it. A mounting through hole is provided in the middle of the support base 6, through which the wire core 1 passes. The support core tube 7 is mounted on the outside of the wire core 1 corresponding to the support base 6 and is fixedly connected to it. The support core tube 7 is located inside the mounting through hole, and its end has a limiting protrusion. Several support blocks 8 are provided, evenly spaced around the end of the support core tube 7 away from the male connector end 2 and fixedly connected to it. Several sets of elastic components are provided, respectively disposed between the support blocks 8 and the support base 6. The support mechanism is constructed through the support base 6, support core tube 7, support blocks 8, and elastic components. The elastic components work together to form an elastic support structure, thereby providing elastic support for the wire core 1 to ensure a tight fit between it and the female terminal 15. The support base 6 guides the support core tube 7 and the wire core 1 and cooperates with the support stop 8 to provide installation support for the elastic component. The support core tube 7 serves as an installation limiting structure on the wire core 1, thereby limiting the installation of the wire core 1 and the support base 6 and guiding the wire core 1. The support stop 8 serves as an installation structure on the support core tube 7 and cooperates with the support base 6 to provide installation support for the elastic component. The elastic component provides elastic support to the support stop 8, thereby providing elastic support for the wire core 1 through the support core tube 7 to ensure a tight fit between it and the female terminal 15. A cross-sectional view of the elastic component of this utility model is shown below. Figure 3 As shown.
[0022] The elastic component includes an elastic base block 9, an elastic mounting block 10, and a support spring 11. Two elastic base blocks 9 are provided, each positioned on a side adjacent to a support base 6 or a support stop 8 and fixedly connected to the corresponding support base 6 or support stop 8. Two elastic mounting blocks 10 are also provided, each positioned on a side adjacent to a two elastic base blocks 9 and fixedly connected to the corresponding elastic base block 9. A mounting groove is provided on the opposite side of each elastic mounting block 10. The support spring 11 is positioned between the two elastic mounting blocks 10, with both ends fixedly connected to the two elastic mounting blocks 10. The end of the elastic component is located inside the mounting groove of the elastic mounting block 10. The elastic component, through the cooperation of the elastic base block 9, the elastic mounting block 10 and the support spring 11, forms an elastic support structure, thereby providing elastic support for the support block 8, the support core tube 7 and the wire core 1 to ensure the tightness of their fit with the female plug terminal 15. The elastic base block 9 is used as the mounting structure on the support base 6 and the support block 8, thereby providing mounting support for the elastic mounting block 10. The elastic mounting block 10 is used to provide mounting support for the support spring 11. The support spring 11 is used to elastically connect the two sets of elastic mounting blocks 10, thereby forming an elastic support structure.
[0023] It also includes an elastic limiting post 12, which is disposed between two elastic mounting blocks 10 and has one end fixedly connected to one of the elastic mounting blocks 10. The other end of the elastic limiting post 12 is spaced apart from the other elastic mounting block 10. The two ends of the elastic limiting post 12 are respectively located inside the mounting grooves of the two elastic mounting blocks 10. The elastic limiting post 12 is used as a limiting structure inside the elastic mounting blocks 10, thereby limiting the distance between the two sets of elastic mounting blocks 10 and preventing the support spring 11 from jamming.
[0024] The female connector mechanism includes a female connector housing 13, a female connector core tube 14, and a female connector terminal 15. The female connector housing 13 is located on the side of the male connector base 4 away from the male connector housing 3 and is threadedly connected to the male connector base 4 through an inner mounting ring 5. The female connector core tube 14 is located inside the female connector housing 13 and is fixedly connected to the female connector housing 13. The female connector terminal 15 is located in the middle of the inner side of the female connector core tube 14 and is embedded in the female connector core tube 14. The female connector mechanism, through the cooperation of the female connector housing 13, the female connector core tube 14, and the female connector terminal 15, forms a female connector structure to connect with the male connector structure, thereby forming a low-voltage connector structure. The female connector housing 13 is used to provide mounting support for the female connector core tube 14. The female connector core tube 14 is used as the core tube structure inside the female connector structure, thereby providing mounting support for the female connector terminal 15. The female connector terminal 15 is used as the connection structure inside the female connector structure, thereby cooperating with the wire core 1 to realize the electrical connection of the controller.
[0025] It also includes a connecting wire 16, which is disposed at the end of the female socket housing 13 away from the male base 4 and is inserted into the female socket housing 13. The connecting wire 16 passes through the female socket housing 13 and one end is electrically connected to the female terminal 15. The end of the connecting wire 16 away from the female terminal 15 is electrically connected to the automotive electronic control system. The connecting wire 16 is used to realize the electrical connection between the female terminal 15 and the automotive electronic control system.
[0026] The end of the wire core 1 furthest from the male plug end 2 is inserted into the female plug core tube 14 and electrically connected to the female plug terminal 15. The wire core 1, the female plug terminal 15 and the connecting wire 16 can all be components of the existing technology. Their structure, connection method and working principle are all existing technologies, so they will not be described in detail here.
[0027] Working principle: In use, the male base 4 is screwed onto the female housing 13 via the inner mounting ring 5 to achieve the assembly of the low-voltage connector. In the assembled state, the elastic component provides elastic support for the support block 8, thereby providing elastic support for the support core tube 7 and the wire core 1, so that the end of the wire core 1 away from the controller is tightly fitted with the female terminal 15, ensuring its assembly tightness and realizing the electrical connection between the car controller and the car electronic control system.
[0028] The beneficial effects of this utility model are that it has a male insertion mechanism and a female insertion mechanism that cooperate with each other and adopt a threaded assembly connection to avoid loosening after long-term use. The connection between the two has good sealing performance. It also has a support mechanism that can provide elastic support for the wire core to ensure a tight connection between the wire core and the terminal, thus ensuring the connection stability and connection effect of the low-voltage connector and improving the working effect of the low-voltage connector.
[0029] The above description details one embodiment of the present utility model, but it is merely a preferred embodiment and should not be construed as limiting the scope of the present utility model. All equivalent variations and improvements made within the scope of the present utility model application should still fall within the patent coverage of the present utility model.
Claims
1. A low-voltage connector for a new energy vehicle controller, comprising a wire core (1), wherein the wire core (1) is electrically connected to the vehicle controller, characterized in that, It also includes a male plug mechanism for forming a packaged male plug structure, a support mechanism for forming an elastic support structure, and a female plug mechanism for forming a nested female plug structure. The male plug mechanism is arranged on the outer side of the end of the wire core (1) away from the vehicle controller. The support mechanism is arranged on the inner side of the male plug mechanism corresponding to the wire core (1). The female plug mechanism is assembled on one end of the male plug mechanism.
2. The low-voltage connector for a new energy vehicle controller as described in claim 1, characterized in that, The male connector mechanism includes a male connector end (2), a male connector housing (3), and a male connector base (4). The male connector end (2) is sleeved on the outside of the end of the wire core (1) away from the vehicle controller and is fixedly connected to the male connector end (2). The male connector housing (3) is disposed on one side of the male connector end (2) and is fixedly connected to the male connector end (2). The male connector base (4) is disposed on the end of the male connector housing (3) away from the male connector end (2) and is fixedly connected to the male connector housing (3).
3. The low-voltage connector for a new energy vehicle controller as described in claim 2, characterized in that, It also includes an inner assembly ring (5), which is disposed on the inner side of the male plug base (4) and integrally formed with the male plug base (4), and the inner side of the inner assembly ring (5) is provided with an internal thread.
4. A low-voltage connector for a new energy vehicle controller as described in claim 3, characterized in that, The male connector (2) is configured as an arc-shaped connector structure, and the male connector housing (3) is configured as a cylindrical housing structure. The interior of the male connector (2) and the male connector housing (3) is configured as a hollow structure. The male connector (2), the male connector housing (3), the male connector base (4), and the assembly inner ring (5) together constitute a packaged male connector structure. The end of the wire core (1) away from the vehicle controller protrudes from the packaged male connector structure.
5. A low-voltage connector for a new energy vehicle controller as described in claim 4, characterized in that, The support mechanism includes a support base (6), a support core tube (7), support blocks (8), and elastic components. The support base (6) is disposed inside the male socket (3) and is fixedly connected to the male socket (3). The support base (6) has a mounting through hole in the middle. The wire core (1) passes through the support base (6) through the mounting through hole. The support core tube (7) is assembled on the outside of the wire core (1) corresponding to the support base (6) and is fixedly connected to the wire core (1). The support core tube (7) is located inside the mounting through hole and has a limiting protrusion at its end. There are several support blocks (8). Several support blocks (8) are evenly spaced and arranged around the end of the support core tube (7) away from the male end (2) and are fixedly connected to the support core tube (7). There are several sets of elastic components. Several sets of elastic components are respectively disposed between several support blocks (8) and the support base (6).
6. A low-voltage connector for a new energy vehicle controller as described in claim 5, characterized in that, The elastic component includes an elastic base block (9), an elastic mounting block (10), and a support spring (11). There are two elastic base blocks (9), which are respectively disposed on the side of the support base (6) and the support stop (8) and are fixedly connected to the corresponding support base (6) or the support stop (8). There are two elastic mounting blocks (10), which are respectively disposed on the side of the two elastic base blocks (9) and are fixedly connected to the corresponding elastic base block (9). There is a mounting groove on the opposite side of the two elastic mounting blocks (10). The support spring (11) is disposed between the two elastic mounting blocks (10) and its two ends are fixedly connected to the two elastic mounting blocks (10). The end of the support spring (11) is located inside the mounting groove of the elastic mounting block (10).
7. A low-voltage connector for a new energy vehicle controller as described in claim 6, characterized in that, It also includes an elastic limiting post (12), which is disposed between the two elastic mounting blocks (10) and one end of which is fixedly connected to one of the elastic mounting blocks (10). The other end of the elastic limiting post (12) is spaced apart from the other elastic mounting block (10). The two ends of the elastic limiting post (12) are respectively located inside the mounting grooves of the two elastic mounting blocks (10).
8. A low-voltage connector for a new energy vehicle controller as described in claim 7, characterized in that, The female connector mechanism includes a female connector housing (13), a female connector core tube (14), and a female connector terminal (15). The female connector housing (13) is located on the side of the male connector base (4) away from the male connector housing (3) and is threadedly connected to the male connector base (4) through an inner mounting ring (5). The female connector core tube (14) is located inside the female connector housing (13) and is fixedly connected to the female connector housing (13). The female connector terminal (15) is located in the middle of the inner side of the female connector core tube (14) and is embedded in the female connector core tube (14).
9. A low-voltage connector for a new energy vehicle controller as described in claim 8, characterized in that, It also includes a connecting wire (16), which is disposed at the end of the female socket (13) away from the male base (4) and is inserted into the female socket (13). The connecting wire (16) passes through the female socket (13) and one end is electrically connected to the female terminal (15). The end of the connecting wire (16) away from the female terminal (15) is electrically connected to the automotive electronic control system.
10. A low-voltage connector for a new energy vehicle controller as described in claim 9, characterized in that, The end of the wire core (1) away from the male connector (2) is inserted into the female connector core tube (14) and electrically connected to the female connector terminal (15).
Citation Information
Patent Citations
Low-voltage connector for new energy automobile controller
CN222620264U
