A high current fine-pitch board-to-board connector
By introducing a combination of an attraction block and an electromagnet between the pin and the slot, automatic pin insertion and automatic circuit disconnection are achieved, solving the problem of complex manual operation in the prior art and improving the convenience and stability of the connector.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHENZHEN ATOM TECH CO LTD
- Filing Date
- 2022-05-05
- Publication Date
- 2026-06-23
AI Technical Summary
Existing board-to-board connectors require manual alignment of pins and slots, making connection inconvenient.
The system employs a combination of an attraction block and an electromagnet. The electromagnet attracts the attraction block, causing the pin to automatically insert into the slot. Combined with a sliding block and a trigger mechanism, the circuit is automatically disconnected. A damping rod and a spring ensure a stable connection.
It reduces manual operation steps, improves the convenience of connectors, saves power, and ensures a stable connection.
Smart Images
Figure CN114899659B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of connectors, and more particularly to a high-current, fine-pitch board-to-board connector. Background Technology
[0002] Board-to-board (BPC) generally refers to two PCBs that are parallel or at an angle to each other. A BPC connector is a connector with multiple terminals, typically consisting of multiple flexible terminals and plastic components. When mated, the male and female terminals mate, and the connectors can be single-core or multi-core arranged in a matrix, mounted on a plastic housing to form a complete connector.
[0003] In the related technology, Chinese utility model patent with publication number CN213340807U discloses a novel board-to-board automatic centering high-current connector, including a first plastic insulator and a high-current female terminal. The first plastic insulator has a first through hole inside, and a high-current male terminal is arranged inside the first through hole. The high-current male terminal includes a base body, a first mounting groove, an axial spring contact finger, and a pin. The lower surface of the base body has a first mounting groove, and the axial spring contact finger is arranged inside the first mounting groove. A pin is arranged below the axial spring contact finger. A second plastic insulator is connected below the first plastic insulator, and the second plastic insulator has a second through hole inside. The high-current female terminal is arranged inside the second through hole. The high-current female terminal includes a socket body, a second mounting groove, and a radial spring contact finger. The inner wall of the socket body has a second mounting groove, and the radial spring contact finger is arranged inside the second mounting groove.
[0004] Regarding the aforementioned technologies, when the pins on the male terminal are aligned with the slots on the female terminal, it is usually necessary for the operator to bring the two PCB boards close together so that the pins can be inserted into the slots. This increases the operator's steps and reduces the ease of connector connection. Summary of the Invention
[0005] To reduce the number of steps required by operators and improve the ease of connector connection, this application provides a high-current fine-pitch board-to-board connector.
[0006] The high-current, fine-pitch board-to-board connector provided in this application adopts the following technical solution:
[0007] A high-current fine-pitch board-to-board connector includes a male terminal and a female terminal. The male terminal includes a pin, and the top surface of the female terminal has a slot. An attraction block is fixedly connected to the bottom of the pin, and an electromagnet for attracting the attraction block is fixedly connected to the bottom surface of the slot.
[0008] By adopting the above technical solution, the attraction block is fixedly connected to the bottom of the pin and the bottom of the slot. When the pin is aligned with the slot, the electromagnet can attract the attraction block, thereby causing the attraction block to drive the pin into the slot, reducing the number of operation steps for operators and improving the convenience of connector connection.
[0009] Preferably, a first sliding groove is formed on the inner wall of the slot, and a triggering mechanism is provided in the first sliding groove. The triggering mechanism includes a sliding block slidably disposed in the first sliding groove. A power supply is fixedly connected to the side wall of the first sliding groove away from the pin. The electromagnet is fixedly connected to the bottom wall of the slot. A trigger fixed plate is embedded in the inner wall of the first sliding groove. A trigger movable plate is embedded in the side of the sliding block, which disengages from the trigger fixed plate after the sliding block slides into the first sliding groove. The trigger fixed plate is electrically connected to one pole of the power supply, and the other pole of the power supply is electrically connected to one pole of the electromagnet. The other pole of the electromagnet is electrically connected to the trigger movable plate. A first inclined surface is provided at the end of the sliding block away from the power supply, and the first inclined surface is located at the top of the sliding block.
[0010] By adopting the above technical solution, when the pin is inserted into the slot, the sliding block slides into the first sliding groove through the contact between the first inclined surface and the pin, causing the trigger fixed plate to separate from the trigger moving plate, thereby automatically disconnecting the electromagnet's electrical circuit after the pin is inserted into the slot, saving power.
[0011] Preferably, a first limiting groove is provided on the inner wall of the first sliding groove, and a first limiting block is fixedly connected to the side of the sliding block, and the first limiting block is slidably disposed in the first limiting groove.
[0012] By adopting the above technical solution, the first limiting block is fixedly connected to the sliding block, and the first limiting block is slidably disposed in the first limiting groove, thereby preventing the first sliding block from leaving the sliding groove, so that the sliding block can slide more stably in the first sliding groove.
[0013] Preferably, a first spring is provided in the first sliding groove, one end of the first spring abuts against the side wall of the first sliding groove away from the pin, and the other end of the first spring abuts against the sliding block.
[0014] By adopting the above technical solution, when the pin is not inserted into the slot, the first spring force keeps the end of the sliding block with the first inclined surface in the slot, and at the same time keeps the trigger moving piece in contact with the trigger stationary piece, so that the electromagnet's electrical circuit remains in the conducting state when the pin is not inserted into the slot.
[0015] Preferably, a damping rod is provided in the first limiting groove, one end of the damping rod is fixedly connected to the side wall of the first limiting groove away from the pin, and the other end of the damping rod is fixedly connected to the side of the first limiting block away from the pin.
[0016] By adopting the above technical solution, when the pin is pulled out of the slot, under the damping action of the damping rod and the elastic force of the first spring, the sliding block can slowly slide out of the first sliding groove, so that the pin is completely separated from the slot, and the trigger plate is connected to the trigger moving plate. This reduces the situation where the electromagnet's electrical circuit is turned on before the pin is completely separated from the slot, thus preventing the pin from separating from the slot.
[0017] Preferably, a second sliding groove is also provided on the side wall of the slot, and a snap-fit mechanism is provided in the second sliding groove. The snap-fit mechanism includes a movable pin that is slidably disposed in the second sliding groove. A snap-fit groove is provided on the side of the pin, and one end of the movable pin is inserted into the snap-fit groove.
[0018] By adopting the above technical solution, the snap-fit groove is opened on the side of the pin, the second sliding groove is opened on the side wall of the slot, the movable pin is slidably disposed in the second sliding groove, and one end of the movable pin is inserted into the snap-fit groove. Thus, when the pin is inserted into the slot, it prevents the pin from leaving the slot, thereby making the connection between the male terminal and the female terminal more stable.
[0019] Preferably, a second limiting groove is provided on the inner wall of the second sliding groove, and a second limiting block is fixedly connected to the side of the movable pin, and the second limiting block is slidably disposed in the second limiting groove.
[0020] By adopting the above technical solution, the second limiting block is fixedly connected to the movable pin, the second limiting groove is opened on the inner wall of the second sliding groove, and the second limiting block is slidably disposed in the second limiting groove, preventing the movable pin from disengaging from the second sliding groove, thereby enabling the movable pin to slide more stably in the second sliding groove and improving the stability of the locking mechanism.
[0021] Preferably, a second spring is provided in the second sliding groove, one end of the second spring abuts against the side wall of the second sliding groove away from the pin, and the other end of the second spring abuts against the movable pin. A second inclined surface is provided on the top surface of the movable pin, and the second inclined surface is located at the end of the movable pin away from the second spring.
[0022] By adopting the above technical solution, the second inclined surface is set at the end of the movable pin away from the second spring. When the pin abuts against the second inclined surface, as the pin continues to be inserted into the slot, the pin can slide into the second sliding groove. When the movable pin is flush with the locking groove, under the elastic force of the second spring, the movable pin can automatically insert into the locking groove.
[0023] Preferably, a third inclined surface is formed on the bottom surface of the pin, and a fourth inclined surface is formed on the top of the inner circumferential surface of the slot.
[0024] By adopting the above technical solution, the third bevel is formed on the bottom surface of the pin, and the fourth bevel is formed on the top of the inner circumference of the slot, thereby facilitating the insertion of the pin into the slot.
[0025] In summary, this application includes at least one of the following beneficial technical effects:
[0026] 1. The attraction block is fixedly connected to the bottom of the pin and the bottom of the slot. When the pin is aligned with the slot, the electromagnet can attract the attraction block, thereby causing the attraction block to drive the pin into the slot, reducing the number of steps for operators and improving the convenience of connector connection.
[0027] 2. When the pin is inserted into the slot, the sliding block slides into the first sliding groove through the contact between the first inclined surface and the pin, causing the trigger stationary plate to separate from the trigger moving plate. This causes the electromagnet's electrical circuit to be automatically disconnected after the pin is inserted into the slot, saving power.
[0028] 3. When the pin is pulled out of the slot, under the damping action of the damping rod and the elastic force of the first spring, the sliding block can slowly slide out of the first sliding groove, so that the pin is completely separated from the slot and the trigger plate is in contact with the trigger moving plate. This reduces the possibility that the electromagnet's electrical circuit will be turned on before the pin is completely separated from the slot, thus preventing the pin from separating from the slot. Attached Figure Description
[0029] Figure 1 This is a schematic diagram of the overall structure of the board-to-board connector in the embodiments of this application.
[0030] Figure 2 This is a cross-sectional view of the board-to-board connector in an embodiment of this application.
[0031] Figure 3 yes Figure 2 Sectional view at point A in the middle.
[0032] Figure 4 yes Figure 2 A magnified view of a section at point B in the middle.
[0033] Explanation of reference numerals in the attached figures:
[0034] 1. Male terminal; 11. Pin; 111. Snap-fit groove; 112. Third inclined surface; 2. Female terminal; 21. Slot; 211. First sliding groove; 212. First limiting groove; 213. Second sliding groove; 214. Second limiting groove; 215. Fourth inclined surface; 3. Trigger mechanism; 31. Sliding block; 311. First inclined surface; 32. Power supply; 33. Trigger fixed plate; 34. Trigger moving plate; 35. First limiting block; 36. First spring; 37. Damping rod; 4. Snap-fit mechanism; 41. Movable pin; 411. Second inclined surface; 42. Second limiting block; 43. Second spring; 5. Attraction block; 6. Electromagnet; 7. PCB board. Detailed Implementation
[0035] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.
[0036] This application discloses a high-current, fine-pitch board-to-board connector. (Refer to...) Figure 1 and Figure 2 As shown, three board-to-board connectors are positioned between two horizontally arranged rectangular PCBs 7. The two PCBs 7 are vertically aligned, and the three board-to-board connectors are evenly distributed along the length of the PCBs. Each board-to-board connector includes a male terminal 1, a female terminal 2, a trigger mechanism 3, and a locking mechanism 4. The male terminal 1 is fixed to the bottom surface of the upper PCB 7, and the female terminal 2 is fixed to the top surface of the lower PCB 7. The male terminal 1 includes a pin 11, and the female terminal 2 has a slot 21 on its top surface.
[0037] Reference Figure 1 and Figure 2 As shown, a third inclined surface 112 is provided on the bottom end face of the pin 11, and a fourth inclined surface 215 is provided on the top of the inner circumferential surface of the slot 21. An iron attraction block 5 is fixedly connected to the bottom end face of the pin 11, and an electromagnet 6 is fixedly connected to the bottom wall of the slot 21.
[0038] Reference Figure 2 and Figure 3 As shown, a first sliding groove 211 is formed on the inner circumferential surface of the slot 21. The trigger mechanism 3 is disposed in the first sliding groove 211. The trigger mechanism 3 includes a sliding block 31, a power supply 32, a trigger fixed plate 33, a trigger moving plate 34, a first limiting block 35, a first spring 36, and a damping rod 37. The power supply 32 is fixedly connected to the side wall of the first sliding groove 211 away from the pin 11. The sliding block 31 is slidably disposed in the first sliding groove 211. A first inclined surface 311 is provided at the end of the sliding block 31 away from the power supply 32. The first inclined surface 311 is located at the top of the sliding block 31. The trigger fixed plate 33 is embedded in the bottom side wall of the first sliding groove 211, and the trigger moving plate 34 is embedded in the bottom surface of the sliding block 31.
[0039] Reference Figure 2 and Figure 3 As shown, the trigger plate 33 is electrically connected to one pole of the power supply 32, the other pole of the power supply 32 is electrically connected to one pole of the electromagnet 6, and the other pole of the electromagnet 6 is electrically connected to the trigger plate 34.
[0040] Reference Figure 2 and Figure 3 As shown, a first limiting groove 212 is formed on the top wall of the first sliding groove 211. The length direction of the first limiting groove 212 is parallel to the opening direction of the first sliding groove 211. A first limiting block 35 is fixedly connected to the top surface of the sliding block 31 and is slidably disposed within the first limiting groove 212. A first spring 36 is disposed within the first sliding groove 211. One end of the first spring 36 abuts against the side wall of the first sliding groove 211 away from the pin 11, and the other end of the first spring 36 abuts against the sliding block 31. A damping rod 37 is horizontally disposed within the first limiting groove 212. The length direction of the damping rod 37 is parallel to the opening direction of the first sliding groove 211. One end of the damping rod 37 is fixedly connected to the side wall of the first limiting groove 212 away from the pin 11, and the other end of the damping rod 37 is fixedly connected to the side of the first limiting block 35 away from the pin 11.
[0041] Reference Figure 2 and Figure 4 As shown, a second sliding groove 213 is also provided on the side wall of the slot 21. The locking mechanism 4 is disposed in the second sliding groove 213. The locking mechanism 4 includes a movable pin 41, a second limiting block 42, and a second spring 43. The movable pin 41 is slidably disposed in the second sliding groove 213. A locking groove 111 is provided on the side of the pin 11. One end of the movable pin 41 is inserted into the locking groove 111. Two second inclined surfaces 411 are provided on the end face of the movable pin 41 near the pin 11. The two second inclined surfaces 411 are located at the top and bottom of the movable pin 41, respectively.
[0042] Reference Figure 2 and Figure 4 As shown, a second limiting groove 214 is provided on the inner wall of the second sliding groove 213. The length direction of the second limiting groove 214 is parallel to the opening direction of the second sliding groove 213. The second limiting block 42 is fixedly welded to the side of the movable pin 41 and is slidably disposed in the second limiting groove 214. The second spring 43 is horizontally disposed in the second sliding groove 213. One end of the second spring 43 abuts against the side wall of the second sliding groove 213 away from the pin 11, and the other end of the second spring 43 abuts against the movable pin 41.
[0043] The implementation principle of a high-current fine-pitch board-to-board connector according to an embodiment of this application is as follows: When the pin 11 is flush with the slot 21, the electromagnet 6 attracts the attraction block 5, causing the attraction block 5 to drive the pin 11 into the slot 21, reducing the number of operation steps for operators and improving the convenience of connector connection. After the pin 11 is inserted into the slot 21, the sliding block 31 slides into the first sliding groove 211 through the contact between the first inclined surface 311 and the pin 11, causing the trigger fixed piece 33 to disengage from the trigger moving piece 34, thereby automatically disconnecting the electrical circuit of the electromagnet 6 after the pin 11 is inserted into the slot 21, saving power of the power supply 32. Furthermore, when the pin 11 is pulled out of the slot 21, under the damping action of the damping rod 37 and the elastic force of the first spring 36, the sliding block 31 can slowly slide out of the first sliding groove 211, so that after the pin 11 is completely separated from the slot 21, the trigger plate 33 will contact the trigger moving plate 34. This reduces the possibility that the electric circuit of the electromagnet 6 will be turned on before the pin 11 is completely separated from the slot 21, thus preventing the pin 11 from separating from the slot 21.
[0044] When the pin 11 is inserted into the slot 21, one end of the movable pin 41 is inserted into the snap-fit groove 111, thereby preventing the pin 11 from disengaging from the slot 21 after it is inserted into the slot 21, thus making the connection between the male terminal 1 and the female terminal 2 more secure.
[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A high-current fine-pitch board-to-board connector, comprising a male terminal (1) and a female terminal (2), wherein the male terminal (1) includes a pin (11), and the female terminal (2) has a slot (21) formed on its top surface, characterized in that: The bottom of the pin (11) is fixedly connected to an attraction block (5), and the bottom surface of the slot (21) is fixedly connected to an electromagnet (6) for attracting the attraction block (5). A first sliding groove (211) is provided on the inner wall of the slot (21). A trigger mechanism (3) is provided in the first sliding groove (211). The trigger mechanism (3) includes a sliding block (31) slidably disposed in the first sliding groove (211). A power supply (32) is fixedly connected to the side wall of the first sliding groove (211) away from the pin (11). A trigger plate (33) is embedded in the inner wall of the first sliding groove (211). A trigger block (31) is embedded on the side of the sliding block (31) towards the first pin. The triggering plate (34) slides in the sliding groove (211) and disengages from the triggering plate (33). The triggering plate (33) is electrically connected to one pole of the power supply (32). The other pole of the power supply (32) is electrically connected to one pole of the electromagnet (6). The other pole of the electromagnet (6) is electrically connected to the triggering plate (34). The sliding block (31) has a first inclined surface (311) at one end away from the power supply (32). The first inclined surface (311) is located at the top of the sliding block (31).
2. The high-current fine-pitch board-to-board connector according to claim 1, characterized in that: A first limiting groove (212) is provided on the inner wall of the first sliding groove (211), and a first limiting block (35) is fixedly connected to the side of the sliding block (31). The first limiting block (35) is slidably disposed in the first limiting groove (212).
3. A high-current fine-pitch board-to-board connector according to claim 2, characterized in that: A first spring (36) is provided in the first sliding groove (211). One end of the first spring (36) abuts against the side wall of the first sliding groove (211) away from the pin (11), and the other end of the first spring (36) abuts against the sliding block (31).
4. A high-current fine-pitch board-to-board connector according to claim 3, characterized in that: A damping rod (37) is provided in the first limiting groove (212). One end of the damping rod (37) is fixedly connected to the side wall of the first limiting groove (212) away from the pin (11), and the other end of the damping rod (37) is fixedly connected to the side of the first limiting block (35) away from the pin (11).
5. A high-current fine-pitch board-to-board connector according to claim 1, characterized in that: The slot (21) is also provided with a second sliding groove (213) on its side wall. The second sliding groove (213) is provided with a snap-fit mechanism (4). The snap-fit mechanism (4) includes a movable pin (41) that is slidably disposed in the second sliding groove (213). The side of the pin (11) is provided with a snap-fit groove (111). One end of the movable pin (41) is inserted into the snap-fit groove (111).
6. A high-current fine-pitch board-to-board connector according to claim 5, characterized in that: A second limiting groove (214) is provided on the inner wall of the second sliding groove (213), and a second limiting block (42) is fixedly connected to the side of the movable pin (41). The second limiting block (42) is slidably disposed in the second limiting groove (214).
7. A high-current fine-pitch board-to-board connector according to claim 6, characterized in that: A second spring (43) is provided in the second sliding groove (213). One end of the second spring (43) abuts against the side wall of the second sliding groove (213) away from the pin (11), and the other end of the second spring (43) abuts against the movable pin (41). A second inclined surface (411) is provided on the top surface of the movable pin (41), and the second inclined surface (411) is located at the end of the movable pin (41) away from the second spring (43).
8. A high-current fine-pitch board-to-board connector according to claim 1, characterized in that: The bottom surface of the pin (11) is provided with a third inclined surface (112), and the top of the inner circumferential surface of the slot (21) is provided with a fourth inclined surface (215).