Board-to-board large-current connector
By introducing guide sections and insulation protection structures into high-current connectors, the problems of high production costs and low reliability have been solved, achieving cost reduction and improved safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN REUNION ELECTRONICS CO LTD
- Filing Date
- 2025-04-14
- Publication Date
- 2026-04-17
AI Technical Summary
Existing high-current connectors require more manual intervention and higher precision in the manufacturing process, resulting in high production costs. They also suffer from reliability and safety issues such as electrical short circuits, corrosion, mechanical damage, electromagnetic interference, and poor contact.
A board-to-board high-current connector is designed, comprising a PCB board, pins, a crown spring, and a crown spring fixing mechanism. The pins have guide sections to ensure proper mating, and the crown spring fixing mechanism includes an insulating retainer and a crown spring retainer to provide insulation protection.
It reduces production costs, improves the reliability and safety of high-current connectors, and avoids problems such as incorrect insertion or poor connection, electrical short circuit, corrosion, mechanical damage and electromagnetic interference.
Smart Images
Figure CN224138460U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical connector technology, and more specifically, to a board-to-board high-current connector. Background Technology
[0002] High-current connectors are electrical connectors capable of withstanding high current loads, typically used to connect high-power devices such as power supplies, motors, and transformers. These connectors usually have a large conductive cross-sectional area to reduce resistance and voltage drop under high current loads, and typically feature more reliable mechanical connections and insulating materials to ensure connection stability and safety. Currently, high-current terminals are widely used in industrial, power, and transportation sectors to meet the connection requirements of high-power equipment. In existing technologies, the contact structure of high-current connectors, consisting of pins and a crown spring, mostly lacks a guiding structure. This means that high-current connectors may require more manual intervention, testing, and higher precision during manufacturing, resulting in higher production costs. Furthermore, the lack of insulation on the crown spring's mounting structure can lead to electrical short circuits, corrosion, mechanical damage, electromagnetic interference, and poor contact, thus compromising the reliability and safety of the high-current connector.
[0003] Therefore, this utility model provides a board-to-board high-current connector, which can reduce production costs and ensure the reliability and safety of the high-current connector. Utility Model Content
[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a board-to-board high-current connector, which can reduce production costs and ensure the reliability and safety of the high-current connector.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a board-to-board high-current connector, wherein the board-to-board high-current connector includes a PCB board, a pin, a crown spring, and a crown spring fixing mechanism; the middle position of the PCB board is fixedly connected to one end of the pin; the other end of the pin is plugged into and connected to the crown spring; the crown spring is fixedly installed in the crown spring fixing mechanism;
[0006] The crown spring fixing mechanism includes an insulating fixing cover, a crown spring fixing seat, and a locking plate; the insulating fixing cover is sleeved on the crown spring fixing seat; one end of the crown spring fixing seat is provided with a crown spring insertion hole guide surface and is close to the PCB board, and the other end is fixedly connected to the locking plate;
[0007] The pin includes a guide section, a contact section, and a fixing section; the contact section is located between the guide section and the fixing section; both the guide section and the contact section are plugged into the crown spring; the fixing section is fixedly connected to the PCB board.
[0008] In the above structure, the crown spring fixing seat includes a crown spring insertion hole, a base, and a threaded fixing post; the crown spring is fixedly installed in the crown spring insertion hole; one side of the base is fixedly connected to one end of the crown spring insertion hole, and the other side is fixedly connected to one end of the threaded fixing post; the other end of the threaded fixing post is threadedly connected to the middle position of the locking plate.
[0009] In the above structure, the insulating fixing cover has a fixing cover slot at one end near the PCB board; the crown spring insertion hole has a crown spring insertion hole slot at one end near the PCB board; the distribution positions of the fixing cover slot and the crown spring insertion hole slot are adapted to each other.
[0010] In the above structure, the inner wall of the insulating fixing cover is provided with a first straight positioning surface, and the outer wall of the crown spring insertion hole is provided with a second straight positioning surface; the distribution positions of the first straight positioning surface and the second straight positioning surface are adapted to each other.
[0011] In the above structure, the outer wall of the crown spring insertion hole is also provided with crown spring insertion hole barbs, and the end of the crown spring insertion hole barbs is close to the side of the second straight positioning surface.
[0012] In the above structure, a threaded hole is provided in the middle position of the locking plate, and the threaded hole is threadedly connected to the other end of the threaded fixing post.
[0013] In the above structure, a fixing hole is provided in the middle of the PCB board, and the fixing section of the pin is soldered into the fixing hole.
[0014] The beneficial effects of this utility model are as follows: This solution provides a guide section at the end of the pin, which guides the correct mating of the pin and the crown spring of the high-current connector, thus avoiding incorrect insertion or poor connection. This also avoids the problem of high production costs caused by the need for more manual intervention, testing, and high precision requirements in the manufacturing process of high-current connectors. Furthermore, by designing an insulating fixing cover to be fitted on the outside of the crown spring fixing seat, it avoids problems such as electrical short circuits, corrosion, mechanical damage, electromagnetic interference, and poor contact. Therefore, this utility model can both reduce production costs and ensure the reliability and safety of high-current connectors. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of a board-to-board high-current connector according to the present invention;
[0016] Figure 2 This is a schematic diagram of the crown spring fixing mechanism of a board-to-board high-current connector according to the present invention.
[0017] Figure 3This is a schematic diagram of the pin mounting structure of a board-to-board high-current connector according to the present invention.
[0018] Figure 4 This is a schematic diagram of the mounting structure of the crown spring fixing seat for the one-to-one high-current connector of this utility model. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0020] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.
[0021] Reference Figures 1-4 As shown, this utility model discloses a board-to-board high-current connector, which includes a PCB board 1, pins 2, a crown spring 7, and a crown spring fixing mechanism; the middle position of the PCB board 1 is fixedly connected to one end of the pin 2; the other end of the pin 2 is plugged into and connected to the crown spring 7; the crown spring 7 is fixedly installed in the crown spring fixing mechanism; the crown spring fixing mechanism includes an insulating fixing cover 5, a crown spring fixing seat 3, and a locking plate 4; the insulating fixing cover 5 is sleeved on the crown spring fixing seat 3; one end of the crown spring fixing seat 3 is provided with a crown spring insertion hole guide surface 9, which is close to the PCB board 1, and the other end is fixedly connected to the locking plate 4; the pin 2 includes a guide section 203, a contact section 202, and a fixing section 201; the contact section 202 is located between the guide section 203 and the fixing section 201; both the guide section 203 and the contact section 202 are plugged into and connected to the crown spring 7; the fixing section 201 is fixedly connected to the PCB board 1.
[0022] It should be noted that, in this embodiment, the PCB board 1 serves as the substrate of the entire board-to-board high-current connector, providing the foundation for support and electrical connection; the pin 2 guides the transmission of current, and the pin 2 establishes an electrical connection through contact with the crown spring 7 to ensure current transmission between the PCB board 1 and the external device; the crown spring 7 is an elastic contact element in the high-current connector, typically used for plugging and unplugging connections to ensure the stability and reliability of electrical contact; the crown spring fixing mechanism is used to fix the position and orientation of the crown spring 7, ensuring stable installation and operation of the crown spring 7 in the high-current connector; furthermore, the pin 2 includes a guide section 203, a contact section 202, and a fixing section 201, wherein the guide section 203 guides the correct mating of the pin 2 and the crown spring 7 to avoid incorrect insertion or poor connection, and to avoid the need for more manual intervention during the manufacturing process of the high-current connector. The high requirements for pre-testing and precision lead to high production costs. The contact section 202 is used to contact the crown spring 7 to ensure stable current transmission. The fixing section 201 is used to make a stable electrical connection and a solid mechanical connection with the PCB board 1. The crown spring fixing mechanism includes an insulating fixing cover 5, a crown spring fixing seat 3, and a locking plate 4. The crown spring fixing seat 3 is used to provide stable mechanical support for the installation of the crown spring 7, and the end of the crown spring fixing seat 3 near the PCB board 1 is provided with a crown spring insertion hole guide surface 9, which is used to guide the installation of the crown spring 7. The insulating fixing cover 5 is used to provide insulation protection on the outside of the crown spring fixing seat 3 to avoid problems such as electrical short circuit, corrosion, mechanical damage, electromagnetic interference, and poor contact. The locking plate 4 is used to lock the bottom of the crown spring fixing seat 3 to prevent the crown spring fixing seat 3 from coming out of the insulating fixing cover 5, so as to ensure the insulation effect. In the specific implementation of this utility model, the board-to-board high-current connector guides the correct docking of the pin 2 and the crown spring 7 through the guide section 203 of the pin 2, so as to avoid the problem of incorrect insertion or poor connection, and avoid the problem of high production cost caused by the need for more manual intervention, testing and high precision requirements in the manufacturing process of high-current connectors; and the outer side of the crown spring fixing seat 3 is insulated and protected by the insulating fixing cover 5 to avoid problems such as electrical short circuit, corrosion, mechanical damage, electromagnetic interference and poor contact; therefore, this embodiment can reduce production costs and ensure the reliability and safety of high-current connectors.
[0023] Reference Figure 2 As shown, the crown spring fixing base 3 includes a crown spring insertion hole 8, a base 13, and a threaded fixing post 14; the crown spring 7 is fixedly installed in the crown spring insertion hole 8; one side of the base 13 is fixedly connected to one end of the crown spring insertion hole 8, and the other side is fixedly connected to one end of the threaded fixing post 14; the other end of the threaded fixing post 14 is threadedly connected to the middle position of the locking plate 4.
[0024] It should be noted that, in this embodiment, the crown spring insertion hole 8 is used to provide an insertion hole for the installation of the crown spring 7; the base 13 is used to provide bottom support for the installation of the crown spring 7 and to provide an mounting surface for the threaded fixing post 14; the threaded fixing post 14 is threadedly connected to the locking plate 4 to lock the bottom of the crown spring fixing seat 3.
[0025] Continue to refer to Figure 2 As shown, the insulating fixing cover 5 has a fixing cover slot 17 at one end near the PCB board 1; the crown spring insertion hole 8 has a crown spring insertion hole slot 10 at one end near the PCB board 1; the distribution positions of the fixing cover slot 17 and the crown spring insertion hole slot 10 are adapted to each other.
[0026] It should be noted that, in this embodiment, the design of the fixing cover slot 17 and the crown spring insertion slot 10 is to provide guidance and positioning for the assembly of the crown spring insertion piece 8 and the insulating fixing cover 5.
[0027] Continue to refer to Figure 2 As shown, the inner wall of the insulating fixing cover 5 is provided with a first straight positioning surface 6, and the outer wall of the crown spring insertion hole 8 is provided with a second straight positioning surface 12; the distribution positions of the first straight positioning surface 6 and the second straight positioning surface 12 are adapted to each other.
[0028] It should be noted that, in this embodiment, the design of the first straight positioning surface 6 and the second straight positioning surface 12 is to further guide and position the assembly of the crown spring insertion part 8 and the insulating fixing cover 5.
[0029] Continue to refer to Figure 2 As shown, the outer wall of the crown spring insertion hole 8 is also provided with a crown spring insertion hole barb 11, and the end of the crown spring insertion hole barb 11 is close to the side of the second straight positioning surface 12.
[0030] It should be noted that, in this embodiment, the barbs 11 of the crown spring insertion hole can provide a certain holding force between the outer wall of the crown spring insertion hole 8 and the inner wall of the insulating fixing cover 5, and further prevent the crown spring insertion hole 8 from exiting the insulating fixing cover 5.
[0031] Reference Figure 4 As shown, a threaded hole 16 is provided in the middle position of the locking plate 4, and the threaded hole 16 is threadedly connected to the other end of the threaded fixing post 14.
[0032] It should be noted that, in this embodiment, the threaded hole 16 is designed to accommodate the installation of the threaded fixing post 14.
[0033] Reference Figure 3As shown, a mounting hole 15 is provided in the middle of the PCB board 1, and the fixing section 201 of the pin 2 is soldered into the mounting hole 15.
[0034] It should be noted that, in this embodiment, the design of the fixing mounting hole 15 is to accommodate the mechanical and electrical connection between the fixing section 201 of the pin 2 and the PCB board 1.
[0035] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.
Claims
1. A board-to-board high current connector characterized by, The board-to-board high-current connector includes a PCB board, pins, a crown spring, and a crown spring fixing mechanism; the middle position of the PCB board is fixedly connected to one end of the pin; the other end of the pin is plugged into and out of the crown spring; the crown spring is fixedly installed in the crown spring fixing mechanism; The crown spring fixing mechanism includes an insulating fixing cover, a crown spring fixing seat, and a locking plate; the insulating fixing cover is sleeved on the crown spring fixing seat; one end of the crown spring fixing seat is provided with a crown spring insertion hole guide surface and is close to the PCB board, and the other end is fixedly connected to the locking plate; The pin includes a guide section, a contact section, and a fixing section; the contact section is located between the guide section and the fixing section; both the guide section and the contact section are plugged into the crown spring; the fixing section is fixedly connected to the PCB board.
2. A board-to-board high current connector according to claim 1, wherein, The crown spring fixing base includes a crown spring insertion hole, a base, and a threaded fixing post; the crown spring is fixedly installed in the crown spring insertion hole; one side of the base is fixedly connected to one end of the crown spring insertion hole, and the other side is fixedly connected to one end of the threaded fixing post; the other end of the threaded fixing post is threadedly connected to the middle position of the locking plate.
3. A board-to-board high current connector according to claim 2, wherein, The insulating fixing cover has a fixing cover slot at one end near the PCB board; the crown spring insertion hole has a crown spring insertion hole slot at one end near the PCB board; the distribution positions of the fixing cover slot and the crown spring insertion hole slot are adapted to each other.
4. A board-to-board high current connector according to claim 2, wherein, The inner wall of the insulating fixing cover is provided with a first straight positioning surface, and the outer wall of the crown spring insertion hole is provided with a second straight positioning surface; the distribution positions of the first straight positioning surface and the second straight positioning surface are adapted to each other.
5. A board-to-board high current connector according to claim 4, wherein, The outer wall of the crown spring insertion component is also provided with crown spring insertion barbs, and the end of the crown spring insertion barbs is close to the side of the second straight positioning surface.
6. A board-to-board high current connector as recited in claim 2, wherein, A threaded hole is provided in the middle of the locking plate, and the threaded hole is threadedly connected to the other end of the threaded fixing post.
7. A board-to-board high current connector as recited in claim 1, wherein, A mounting hole is provided in the middle of the PCB board, and the fixing section of the pin is soldered into the mounting hole.