Board-to-board connector

Abstract

The utility model discloses a board-to-board connector, which comprises a female seat, the female seat comprises a plastic body and a terminal arranged in the plastic body, the whole terminal is in a multi-bending shape, a transmission contact area of the terminal is arranged to be spherical convex hull gold plating, and the terminal is provided with a multi-section type separation clamping thorn in the width direction; through the above mode, the connector provided by the utility model not only can stably transmit current and signals, but also is compact in structure, small in occupied space, simple in structure and good in stability.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a board-to-board connector. Background Technology

[0002] Conventional connectors are male-female interlocking, and board-to-board high-current connectors are relatively rare, with certain requirements on the structure of both the male and female connectors. Based on the above research, this invention designs a new board-to-board connector. When the connector is used in a high-current transmission circuit, it can transmit high current through the terminals. Moreover, the design requirements for the male connector are very low, requiring only a few flat terminals to contact each other. It is even possible to directly use the pads on the PCB board as male connectors, which can greatly save the space occupied by the male connector. Utility Model Content

[0003] The main technical problem solved by this utility model is to provide a board-to-board connector. The female terminal structure adopts a multi-segment spring-loaded terminal structure, which provides a large compression stroke, ensures stable contact, and has very low requirements for the shape of the mating male head, greatly simplifying the design of the mating head.

[0004] To solve the above-mentioned technical problems, the present invention provides a board-to-board connector, including a female connector, the female connector including a plastic body and terminals disposed in the plastic body, the terminals having a multi-bent shape, the transmission contact area of ​​the terminals being configured as a spherical convex gold-plated area, and the terminals having multi-segmented separation spurs in the width direction.

[0005] Preferably, the plastic body is provided with a plurality of parallel accommodating cavities, and each accommodating cavity is equipped with a terminal.

[0006] Preferably, each of the accommodating cavities has a stop step above the side wall of the terminal, and the width of the terminal head is greater than the width in the middle.

[0007] Preferably, each of the accommodating cavities has a positioning groove recessed below its inner wall, and each terminal is correspondingly engaged.

[0008] Preferably, the outer wall of the plastic body is provided with a reinforcing sheet to increase the retention force of the product after welding.

[0009] Preferably, the reinforcing sheet is provided with a limiting multi-segment separation piercing on one side of the outer wall of the plastic body.

[0010] Preferably, guide posts are provided at both ends of the lower part of the plastic body.

[0011] Preferably, the side of the plastic body opposite to the guide post is provided with a clearance hole through each terminal.

[0012] Preferably, a positioning triangle is provided at the bottom of the plastic body.

[0013] Preferably, plastic buckles are provided on both sides of the outer wall of the plastic body.

[0014] The beneficial effects of this utility model are:

[0015] The board-to-board connector provided by this utility model is suitable for high-current transmission circuits. It has very low requirements for the male connector design, requiring only a few flat terminal contacts. It can even directly use the Pad on the PCB board as the male connector, greatly saving the space occupied by the male connector. At the same time, the end spring-shaped structure can meet the contact stability requirements during the use of the connector. Combined with the ingenious design of the plastic body, it ensures a firm connection between the connector and the PCB board or the wire end, greatly simplifying the structure and space of the connector, and has very good technical promotion value. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram corresponding to Embodiment 1 of the board-to-board connector of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the terminals in a board-to-board connector according to this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of a limiting piece in a board-to-board connector according to this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram corresponding to Embodiment 1 of the board-to-board connector of this utility model, used to illustrate the clearance hole structure;

[0020] Figure 5 This is a three-dimensional structural schematic diagram corresponding to Embodiment 2 of the board-to-board connector of this utility model;

[0021] Figure 6 This is the plastic body structure corresponding to Embodiment 2 of the board-to-board connector of this utility model;

[0022] Figure 7 This is used to demonstrate the actual use of a board-to-board connector of this utility model, and to show that the requirements for the male terminal are relatively low, only requiring a contact area with a flat terminal structure is needed.

[0023] The components in the attached diagram are labeled as follows:

[0024] 1. Plastic body; 2. Terminal; 3. Transmission contact area; 4. Multi-segment separation buckle; 5. Accommodating cavity; 6. Stop step; 7. Positioning groove; 8. Reinforcing sheet; 9. Limiting multi-segment separation buckle; 10. Guide post; 11. Clearance hole; 12. Identifying triangle; 13. Plastic buckle; 14. Rib; 15. Raised edge. Detailed Implementation

[0025] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0026] Example 1:

[0027] like Figure 1 As shown, this embodiment provides a board-to-board connector, specifically an R / A TYPE connector, which includes a female connector. The female connector structure includes a plastic body 1 and terminals 2. The terminals 2 are disposed within the plastic body 1, which is a conventional structural design for connectors and will not be described in detail here. In this solution, the plastic body 1 is provided with multiple parallel accommodating cavities 5, and the terminals 2 are correspondingly and interferingly assembled within each accommodating cavity 5.

[0028] like Figure 1 and Figure 2 As shown, in this design, terminal 2 features a multi-bending design, dividing the terminal into many segments. This allows the terminal to have a relatively stable and uniform stress distribution, much like a spring, during deformation under stress. The amount of deformation after rebound is also greatly reduced due to this structure, effectively increasing the terminal's lifespan. At the same time, the transmission contact area 3 of terminal 2 is designed as a spherical convex gold-plated surface. This design enables more stable contact and very low contact resistance during product connection. Furthermore, terminal 2 has a wide welding surface, making the welding process more stable.

[0029] like Figure 1 , Figure 2 and Figure 3 As shown, the terminal 2 of this invention features a multiple bending design, inevitably resulting in deformation or springback of the spring sheet. Therefore, a stop step 6 is provided above the side wall of each accommodating cavity 5 interfering with the terminal 2. Simultaneously, the head of the terminal 2 is enlarged, meaning the width of the head is greater than the width in the middle, allowing it to contact the plastic step precisely for stop positioning. Furthermore, a positioning groove 7 is recessed below the inner wall of each accommodating cavity 5, corresponding to the snap-fit ​​design of each terminal 2. The combined design of the upper stop step and the lower positioning groove securely confines the terminal within the corresponding accommodating cavity.

[0030] like Figure 1 , Figure 2 and Figure 3As shown, a space is provided on the outer wall of the plastic body 1, and a reinforcing sheet 8 is provided in the space. The reinforcing sheet 8 is assembled in the plastic body by interference. The setting of the reinforcing sheet 8 effectively increases the holding force after the product is welded. In order to ensure more uniform interference and more stable structure during assembly, a multi-segmented separation spur 9 is provided on one side of the reinforcing sheet 8 embedded in the outer wall of the plastic body 1. At the same time, a multi-segmented separation spur 4 is also provided in the width direction of the terminal 2.

[0031] like Figure 1 and Figure 4 As shown, guide posts 10 are respectively provided at both ends of the lower part of the plastic body 1, which can play a guiding and positioning role during welding, so as to improve the welding accuracy of the product. In addition, a clearance hole 11 is provided on the side of the plastic body 1 away from the guide post 10. The plastic here is hollowed out to provide space for the terminal to be compressed and deformed by multiple bends, and at the same time, it can increase the cantilever length of the terminal.

[0032] Example 2:

[0033] This embodiment provides another board-to-board connector, specifically a VT TYPE connector. The structural difference between this connector and the one described above is that... Figure 5 and Figure 6 As shown, a positioning triangle 12 is provided at the bottom of the plastic body 1, which is used to determine the pin number during soldering. Simultaneously, plastic clips 13 are provided on both sides of the outer wall of the plastic body 1, which can be used to fix the external structure. Furthermore, to prevent short circuits during soldering, several ribs are provided at the bottom of the plastic body 1; at the same time, protruding edges 15 are provided on both sides of the plastic body 1 to limit assembly by the client.

[0034] Therefore, according to the design structure of this utility model, the requirements for the male terminal of the battery product are relatively low, requiring only a contact area of ​​a flat terminal structure, which greatly simplifies the structural complexity of the product. See the attached document for details. Figure 7 Example.

[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A board-to-board connector comprising a female housing including a plastic body (1) and a terminal (2) disposed in the plastic body (1), characterized in that: The terminal (2) is in a shape of multiple bending, the transmission contact area (3) of the terminal (2) is provided with a gold-plated spherical convex, and the terminal (2) is provided with a multi-section separated carding needle (4) in the width direction.

2. The board-to-board connector according to claim 1, characterized by: A plurality of parallel accommodating cavities (5) are arranged in the plastic body (1), and each of the accommodating cavities (5) is assembled with the terminal (2).

3. The board-to-board connector according to claim 2, characterized by: A stop step (6) is arranged above the side wall of each of the accommodating cavities (5) and the terminal (2), and the width of the head of the terminal (2) is greater than the middle width.

4. The board-to-board connector according to claim 3, characterized by: A positioning groove (7) is arranged below the inner wall of each of the accommodating cavities (5), and each of the terminals (2) is correspondingly embedded.

5. The board-to-board connector according to claim 4, characterized by: An enhancement sheet (8) is arranged in the outer wall of the plastic body (1) for increasing the holding force after welding.

6. The board-to-board connector according to claim 5, characterized by: The enhancement sheet (8) is embedded in one side of the outer wall of the plastic body (1) and is provided with a limiting multi-section separated carding needle (9).

7. The board-to-board connector according to claim 5, characterized by: Two guide columns (10) are arranged at the lower ends of the plastic body (1).

8. The board-to-board connector according to claim 7, characterized by: A clearance hole (11) is arranged on the side of the plastic body (1) away from the guide column (10) and corresponds to each terminal.

9. The board-to-board connector according to claim 4, characterized by: A recognition triangular (12) is arranged at the bottom of the plastic body (1).

10. The board-to-board connector according to claim 9, characterized by: Plastic buckles (13) are arranged on the two sides of the outer wall of the plastic body (1).

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