A low voltage connector structure

Abstract

This utility model relates to the field of connectors for new energy vehicles, and particularly to a low-voltage connector structure, including a male housing; it also includes a second rotating plate and a positioning component. An insertion port is provided at the right end of the male housing, and an oil replenishment component is provided on the insertion port. The oil replenishment component includes the second rotating plate, a compression sleeve, and a four-way tube. A first groove is formed at the upper end of the male housing, and limit posts are fixedly connected to the front and rear ends of the first groove. After the plug is inserted into the port, it pushes the second rotating plate to rotate around the limit posts, causing the connecting frame to move to the right. This causes the compression rod to squeeze the lubricating oil in the compression sleeve, which flows into the male terminal through the injection tube and the four-way tube. Then, the plug is gently pushed in and out repeatedly, so that the lubricating oil is evenly applied to the male terminal. Simultaneously, the second magnet on the second rotating plate attracts the plug's iron block, and the third magnet attracts the first magnet at the port, enhancing the stability of the plug after insertion and preventing loosening due to vibration.

Description

Technical Field

[0001] This utility model belongs to the field of new energy vehicle connectors, specifically relating to a low-voltage connector structure. Background Technology

[0002] In the PTC component of new energy electric vehicles, a connector is needed to connect the PTC and the ECU to enable communication between the two. According to the actual operating conditions of the PTC, the female shell of the connector is soldered to the PCB board of the PTC after the female terminal is installed. The female shell has a wrong-proof installation structure, and the PCB board is installed in the metal shell of the PTC.

[0003] The male housing is bolted onto the metal upper housing of the PTC, passing through the upper housing and interlocking with the female housing. The male housing has a certain dustproof and waterproof capability. However, there is a large amount of play in the PCB mounting and the installation of the metal upper housing, requiring the male and female housings to have strong assembly fault tolerance. Furthermore, during equipment operation, continuous vibration will cause slight relative displacement between the plug and the port. Traditional snap-fit ​​or friction fixing methods are difficult to counteract the long-term accumulated loosening trend. In addition, traditional lubrication methods (such as applying grease) are difficult to evenly cover the contact surface. The debris or oxide layer generated by wear will increase the contact resistance, causing local heating, further aggravating material deterioration, and forming a vicious cycle.

[0004] Therefore, existing connector structures suffer from mechanical vibration interference, installation error prevention issues, and lubrication and wear problems of male terminals during use. Utility Model Content

[0005] To overcome the problems of mechanical vibration interference, installation error prevention, and lubrication and wear of male terminals in existing connector structures during use, a low-voltage connector structure is proposed.

[0006] The technical solution of this utility model is as follows: a low-voltage connector structure, including a male housing; it also includes a second rotating plate and a positioning assembly. An insertion port is provided at the right end of the male housing, and an oil supply assembly is provided on the insertion port. The oil supply assembly includes the second rotating plate, a compression sleeve, and a four-way tube. A first groove is formed at the upper end of the male housing. Limiting posts are fixedly connected to the front and rear ends of the first groove. A second rotating plate is rotatably mounted on the limiting posts. A connecting frame is fixedly connected to the upper end of the second rotating plate through the first groove. A connecting frame is rotatably mounted on the connecting frame. The first rotating plate has a squeezing rod connected to its right end. A squeezing sleeve is provided on the outer wall of the right end of the squeezing section of the squeezing rod. An injection tube is provided through the right end of the squeezing sleeve. Two connecting blocks are fixed to the upper end of the male plastic shell. The ends of the two connecting blocks that are close to each other are connected to a flexible plate. Insertion holes are provided through the left and right ends of the flexible plate. The injection tube is connected through the insertion holes to a four-way pipe. Three third grooves are provided through the upper end of the male plastic shell. The lower ends of the three output ends of the four-way pipe extend through the third grooves to the insertion port.

[0007] Preferably, the left end of the inner wall of the insertion port on the male housing is provided with multiple third mounting slots, and the left end of the inner wall of the insertion port on the male housing is provided with two first magnets. The third mounting slots are provided with male terminals, and the other end of the male terminals passes through the lower end of the male housing.

[0008] Preferably, the right end of the second rotating plate is provided with two second magnets, the left end of the second rotating plate is provided with two third magnets, and three second grooves are opened through the left and right ends of the second rotating plate. The male terminal is located in the second groove, and the flexible plate is made of rubber.

[0009] Preferably, the lower end of the male housing has a first mounting groove, in which a sealing ring is placed, and the upper and lower ends of the male housing have two second mounting grooves, in which a bushing is placed.

[0010] Preferably, a female shell is built into the lower part of the male shell. The upper and lower ends of the female shell are provided with three first placement slots. Two spring pieces are placed inside the first placement slots, and the lower ends of the two spring pieces are fixedly connected to a female terminal.

[0011] Preferably, the male terminal is held by two spring clips after passing through the first placement groove. The inner wall of the first placement groove is provided with a baffle groove. A blocking strip is fixed to the right end of the spring clip, and the lower end of the blocking strip and the lower end of the inner wall of the baffle groove are in contact with each other.

[0012] Preferably, the lower end of the mother shell is fixed with a first anti-dislocation post and a second anti-dislocation post. The first anti-dislocation post and the second anti-dislocation post have different hole diameters. A PCB board is placed at the lower end of the mother shell. The upper and lower ends of the PCB board are provided with a first insertion hole and a second insertion hole. The upper and lower ends of the PCB board are provided with three connecting holes. The connecting holes are adapted to the female terminal. The first insertion hole is adapted to the first anti-dislocation post. The second anti-dislocation post is adapted to the second insertion hole.

[0013] The beneficial effects of this utility model are as follows: After the plug is inserted into the port, the second rotating plate is pushed to rotate around the limiting post, which drives the connecting frame to move to the right, so that the extrusion rod squeezes the lubricating oil in the extrusion sleeve and flows into the male terminal through the injection pipe and the four-way pipe. Then, the plug is gently pushed to insert and pull back and forth, so that the lubricating oil is evenly applied to the male terminal. At the same time, the second magnet on the second rotating plate is attracted to the plug iron block, and the third magnet is attracted to the first magnet at the port, which enhances the stability of the plug after insertion and prevents vibration from causing loosening. Attached Figure Description

[0014] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0015] Figure 2 The diagram shown is a three-dimensional disassembled structural representation of this utility model.

[0016] Figure 3 The diagram shown is a cross-sectional perspective view of the present invention.

[0017] Figure 4 This utility model is shown. Figure 3 Enlarged 3D structural diagram of section B;

[0018] Figure 5 The diagram shown is a three-dimensional cross-sectional view of the first placement groove of this utility model.

[0019] Figure 6 The diagram shown is a three-dimensional structural schematic of the insertion port of this utility model;

[0020] Figure 7 This utility model is shown. Figure 3 A magnified three-dimensional structural diagram of point A;

[0021] Figure 8 The diagram shown is a three-dimensional structural schematic of the oil replenishment component of this utility model.

[0022] The markings in the attached diagram are as follows: 1. Male housing; 2. Female housing; 201. First placement groove; 202. First anti-misalignment post; 203. Second anti-misalignment post; 204. Spring; 205. Female terminal; 206. Baffle groove; 207. Blocking strip; 3. PCB board; 301. Connecting hole; 302. First insertion hole; 303. Second insertion hole; 4. First mounting groove; 401. Sealing ring; 5. Second mounting groove; 501. Bushing; 6. 7. Insertion port; 8. Third mounting slot; 9. Male terminal; 10. First magnet; 11. First groove; 12. Limiting post; 13. Connecting frame; 14. First rotating plate; 15. Second rotating plate; 16. Second magnet; 17. Third magnet; 18. Second groove; 19. Extrusion sleeve; 20. Injection tube; 21. Extrusion rod; 22. Four-way tube; 23. Third groove; 24. Connecting block; 25. Flexible plate; 26. Insertion hole. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please see Figures 1-8This utility model provides an embodiment of a low-voltage connector structure, including a male housing 1; it also includes a second rotating plate 14 and a positioning assembly. An insertion port 6 is provided at the right end of the male housing 1, and an oil filling assembly is provided on the insertion port 6. The oil filling assembly includes the second rotating plate 14, a compression sleeve 18, and a four-way tube 21. A first groove 10 is formed at the upper end of the male housing 1, and limit posts 11 are fixedly connected to the front and rear ends of the first groove 10. A second rotating plate 14 is rotatably mounted on the limit posts 11. The upper end of the rotating plate 14 is fixedly connected to the connecting frame 12 through the first groove 10. The first rotating plate 13 is rotatably mounted on the connecting frame 12. The right end of the first rotating plate 13 is connected to the extrusion rod 20. The outer wall of the right end of the extrusion section of the extrusion rod 20 is provided with an extrusion sleeve 18. The right end of the extrusion sleeve 18 is provided with a liquid injection tube 19. The upper end of the male plastic shell 1 is fixedly connected to two connecting blocks 23. The ends of the two connecting blocks 23 that are close to each other are connected to a flexible plate 24. The left and right ends of the flexible plate 24 are provided with insertion holes 25. The injection tube 19 passes through the insertion hole 25 and is connected to the four-way tube 21. The upper end of the male housing 1 has three third grooves 22. The lower ends of the three output ends of the four-way tube 21 extend through the third grooves 22 into the insertion port 6. After the plug is inserted into the port 6, the second rotating plate 14 is pushed to rotate around the limiting post 11, thereby driving the connecting frame 12 to rotate to the right. This causes the extrusion rod 20 to extrude the extrusion sleeve 18, squeezing the lubricating oil in the extrusion sleeve 18 into the four-way tube 21 through the injection tube 19 and then into the male terminal 8 on the insertion port 6. Then, the plug is inserted and removed back and forth slightly on the insertion port 6 to spread the lubricating oil evenly on the male terminal 8. At the same time, the second magnet 15 on the second rotating plate 14 and the iron block on the plug attract each other, and the third magnet 16 on the second rotating plate 14 and the first magnet 9 on the insertion port 6 attract each other, thereby improving the stability of the plug after it is inserted into the port 6 and preventing the plug from loosening during vibration.

[0025] Please see Figures 1-6In this embodiment, a first mounting groove 4 is provided at the lower end of the male housing 1, and a sealing ring 401 is placed in the first mounting groove 4. Two second mounting grooves 5 are provided at the upper and lower ends of the male housing 1, and bushings 501 are placed in the second mounting grooves 5. The sealing ring 401 improves the dustproof and waterproof capabilities during installation. A female housing 2 is built into the lower part of the male housing 1. Three first placement grooves 201 are provided at the upper and lower ends of the female housing 2. Two spring pieces 204 are placed inside the first placement grooves 201. The lower ends of the two spring pieces 204 are fixedly connected to the female terminal 205. The male terminal 8 passes through the first placement groove 201 and is clamped by the two spring pieces 204. A baffle groove 206 is provided on the inner wall of the first placement groove 201. A blocking strip 207 is fixedly connected to the right end of the spring piece 204. The lower end of the blocking strip 207... The lower ends of the inner walls of the end and the baffle groove 206 are fitted together. The lower end of the mother shell 2 is fixed with a first anti-misalignment post 202 and a second anti-misalignment post 203. The hole diameters of the first anti-misalignment post 202 and the second anti-misalignment post 203 are different. A PCB board 3 is placed at the lower end of the mother shell 2. The upper and lower ends of the PCB board 3 are provided with a first insertion hole 302 and a second insertion hole 303. The upper and lower ends of the PCB board 3 are provided with three connecting holes 301. The connecting holes 301 are adapted to the mother terminal 205. The first insertion hole 302 is adapted to the first anti-misalignment post 202. The second anti-misalignment post 203 is adapted to the second insertion hole 303. The second anti-misalignment post 203 and the first anti-misalignment post 202 are designed to prevent misalignment during insertion, which can effectively protect the mother terminal 205 and the PCB board 3.

[0026] Please see Figures 6-8 In this embodiment, a plurality of third mounting grooves 7 are provided on the left end of the inner wall of the insertion port 6 on the male plastic shell 1, and two first magnets 9 are provided on the left end of the inner wall of the insertion port 6 on the male plastic shell 1. A male terminal 8 is provided on the third mounting groove 7, and the other end of the male terminal 8 passes through the lower end of the male plastic shell 1. The first magnets 9 are used to attract each other magnetically with the third magnets 16 on the second rotating plate 14, thereby improving the stability of the installation. Two second magnets 15 are provided on the right end of the second rotating plate 14, and two third magnets 16 are provided on the left end of the second rotating plate 14. Three second grooves 17 are provided through the left and right ends of the second rotating plate 14. The male terminal 8 is located in the second groove 17. The flexible plate 24 is made of rubber material. The flexible plate 24 has good deformation ability so that when the connecting frame 12 rotates to the right, the extrusion sleeve 18 will rotate around the flexible plate 24, thereby facilitating the subsequent extrusion of liquid.

[0027] During connector installation, firstly, the female terminals 205 connected below the two spring contacts 204 are sequentially placed from top to bottom into the first placement slot 201 on the female housing 2. Then, they are inserted downwards from above the first placement slot 201, so that the blocking strip 207 on the spring contact 204 is blocked by the blocking slot 206. Next, the three male terminals 8 on the male housing 1 are aligned with the first placement slot 201 and inserted. After insertion, the male terminals 8 are clamped by the two spring contacts 204. Then, the PCB board 3 is placed below the male housing 1, so that the first anti-misalignment post 202 and the second anti-misalignment post 203 are respectively inserted into the first socket 302 and the second socket 303 on the PCB board 3. Simultaneously, the three female terminals 205 are inserted into the connection holes 301 for subsequent soldering. The sealing ring 401 provides waterproofing and dustproofing. The blocking strip 207 limits the movement of the spring contacts 204. The two spring contacts 204 clamp the male terminals 8, and the first anti-misalignment post 202 and the second anti-misalignment post 203... The misalignment post 203 is inserted into the first socket 302 and the second socket 303 respectively to prevent misalignment during installation. This effectively protects the female terminal 205 and prevents it from breaking or bending due to forceful insertion. After the plug is inserted into the port 6, the second rotating plate 14 is pushed to rotate around the limiting post 11, thereby causing the connecting frame 12 to rotate to the right. This causes the extrusion rod 20 to extrude the extrusion sleeve 18, squeezing the lubricating oil in the extrusion sleeve 18 into the four-way pipe 21 through the injection pipe 19 and then into the male terminal 8 on the insertion port 6. Then, the plug is inserted and removed back and forth slightly on the insertion port 6 to spread the lubricating oil evenly on the male terminal 8. At the same time, the second magnet 15 on the second rotating plate 14 and the iron block on the plug attract each other, and the third magnet 16 on the second rotating plate 14 and the first magnet 9 on the insertion port 6 attract each other, thereby improving the stability of the plug after it is inserted into the port 6 and preventing the plug from loosening during vibration.

Claims

1. A low-voltage connector structure, comprising a male housing (1); characterized in that: It also includes a second rotating plate (14) and a positioning assembly. An insertion port (6) is provided at the right end of the male plastic shell (1). An oil replenishment assembly is provided on the insertion port (6). The oil replenishment assembly includes a second rotating plate (14), a compression sleeve (18), and a four-way pipe (21). A first groove (10) is opened at the upper end of the male plastic shell (1). Limiting posts (11) are fixedly connected to the front and rear ends of the first groove (10). A second rotating plate (14) is rotatably arranged on the limiting posts (11). A connecting frame (12) is fixedly connected to the upper end of the second rotating plate (14) through the first groove (10). A first rotating plate (13) is rotatably arranged on the connecting frame (12). The right end of the first rotating plate (13) is connected to... A squeezing rod (20) is connected to the upper end of the squeezing section of the squeezing rod (20), and a squeezing sleeve (18) is provided on the outer wall of the right end of the squeezing sleeve (18). A liquid injection tube (19) is provided through the right end of the squeezing sleeve (18). Two connecting blocks (23) are fixed to the upper end of the male plastic shell (1). The two connecting blocks (23) are connected to a flexible plate (24) at their close ends. Insertion holes (25) are provided through the left and right ends of the flexible plate (24). The liquid injection tube (19) is connected through the insertion hole (25) to a four-way tube (21). Three third grooves (22) are provided through the upper end of the male plastic shell (1). The lower ends of the three output ends of the four-way tube (21) extend through the third grooves (22) to the insertion port (6).

2. The low-voltage connector structure according to claim 1, characterized in that: Multiple third mounting slots (7) are provided on the left side of the inner wall of the insertion port (6) on the male plastic shell (1), and two first magnets (9) are provided on the left side of the inner wall of the insertion port (6) on the male plastic shell (1). A male terminal (8) is provided on the third mounting slot (7), and the other end of the male terminal (8) passes through the lower end of the male plastic shell (1).

3. The low-voltage connector structure according to claim 1, characterized in that: The right end of the second rotating plate (14) is provided with two second magnets (15), the left end of the second rotating plate (14) is provided with two third magnets (16), and the left and right ends of the second rotating plate (14) are provided with three second grooves (17). The male terminal (8) is located in the second groove (17), and the flexible plate (24) is made of rubber.

4. The low-voltage connector structure according to claim 1, characterized in that: The lower end of the male plastic shell (1) is provided with a first mounting groove (4), and a sealing ring (401) is placed in the first mounting groove (4). The upper and lower ends of the male plastic shell (1) are provided with two second mounting grooves (5), and a bushing (501) is placed in the second mounting groove (5).

5. A low-voltage connector structure according to claim 1, characterized in that: The female shell (2) is built into the bottom of the male shell (1). The female shell (2) has three first placement slots (201) at the top and bottom ends. Two spring pieces (204) are placed inside the first placement slots (201). The lower ends of the two spring pieces (204) are fixedly connected to the female terminal (205).

6. A low-voltage connector structure according to claim 2, characterized in that: After the male terminal (8) passes through the first placement groove (201), it is held by two spring pieces (204). The inner wall of the first placement groove (201) is provided with a baffle groove (206). A blocking strip (207) is fixed to the right end of the spring piece (204). The lower end of the blocking strip (207) and the lower end of the inner wall of the baffle groove (206) are in contact with each other.

7. A low-voltage connector structure according to claim 5, characterized in that: The lower end of the mother shell (2) is fixed with a first anti-dislocation post (202) and a second anti-dislocation post (203). The first anti-dislocation post (202) and the second anti-dislocation post (203) have different hole diameters. A PCB board (3) is placed at the lower end of the mother shell (2). The upper and lower ends of the PCB board (3) are provided with a first insertion hole (302) and a second insertion hole (303). The upper and lower ends of the PCB board (3) are provided with three connecting holes (301). The connecting holes (301) are compatible with the female terminal (205). The first insertion hole (302) is compatible with the first anti-dislocation post (202). The second anti-dislocation post (203) is compatible with the second insertion hole (303).

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