Elastic terminal of inter-board connector

Abstract

The utility model provides an elastic terminal of an inter-board connector, which comprises at least two stacked elastic conducting strips, each elastic conducting strip is provided with a compression area and a fixing area, and in the compression area, the elastic conducting strips are bent back and forth to form a plurality of straight sections and a plurality of bent parts for connecting two adjacent straight sections. And the outer side wall of the straight section at the end part of the elastic conducting strip at the outermost layer is a contact surface in contact with a butting connector. According to the elastic terminal of the inter-board connector, the contact surface is in contact with a butting connector, so that the contact stability is improved.

Description

Technical Field

[0001] The utility model relates to the field of electrical connectors, and more specifically, to an elastic terminal of an inter-board connector. Background Art

[0002] The description in this part only provides background information related to the disclosure of the utility model, and does not constitute the prior art.

[0003] The elastic terminal of the inter-board connector is mainly responsible for realizing electrical connection, and it is usually composed of a contact part and an elastic part. According to the disclosure of Patent CN101952919B, a contact spring is described, and its design enables each contact to independently contact the contact surface, thereby improving the conductive performance. However, in this patented technology, in order to ensure that each elastic piece can stably achieve effective contact, the precision requirements for the manufacturing process are quite high. In addition, the contact between the contact and the contact surface is likely to cause wear on the contact surface, which may affect the performance of the connector.

[0004] It should be noted that the above introduction of the technical background is only for the convenience of clearly and completely explaining the technical solution of the utility model and facilitating the understanding of those skilled in the art. It cannot be considered that the above technical solutions are well-known to those skilled in the art just because these solutions are described in the background art part of the utility model. Summary of the Invention

[0005] The technical problem to be solved by the utility model is to provide an elastic terminal of an inter-board connector.

[0006] To solve the above technical problem, the present application provides an elastic terminal of an inter-board connector, including at least two elastically conductive sheets stacked on top of each other. Each elastically conductive sheet has a compression zone and a fixed zone. In the compression zone, the elastically conductive sheet is bent back and forth to form a plurality of straight segments and a plurality of bending parts connecting adjacent two straight segments. The outer side wall of the straight segment at the end of the outermost elastically conductive sheet is a contact surface for contacting the docking connector.

[0007] Preferably, a plurality of protrusions are provided on the contact surface, and the contact surface contacts the docking connector through the protrusions.

[0008] Preferably, a plurality of grooves are formed in the contact surface, and the plurality of grooves are arranged along the length direction of the elastic terminal. The protrusions are ribbed ridges formed between two grooves.

[0009] Preferably, a separation groove is formed in the surface of the elastically conductive sheet along the length direction, and the separation groove extends to the entire compression zone.

[0010] Preferably, in the fixed zone, adjacent two elastically conductive sheets are spaced apart by a partition plate.

[0011] Preferably, the elastic conductive sheet is a strip-shaped metal sheet.

[0012] Preferably, the number of the bending parts is at least three.

[0013] Preferably, the radius of curvature of the bending part is greater than three times the thickness of the elastic conductive sheet.

[0014] Preferably, the elastic terminal further includes a fixing rod which axially penetrates through the elastic terminal located in the compression area along the elastic terminal. A spring is arranged at the lower end of the fixing rod. When the elastic terminal is compressed, the elastic terminal located in the compression area slides along the fixing rod.

[0015] Preferably, the end of the contact surface gradually approaches the docking surface of the docking connector, so as to form an inclination angle between the contact surface and the docking surface of the docking connector.

[0016] By means of the above technical solutions, the beneficial effects of the present utility model are as follows:

[0017] For the elastic terminal of the inter-board connector of the present utility model, the contact surface contacts with the docking connector, which increases the contact stability. A plurality of protrusions are arranged on the contact surface, which can increase the effective contact points between the contact surface and the docking connector, and further increase the contact reliability. In the fixing area, a partition is used to separate between two elastic conductive sheets to prevent the adjacent elastic conductive sheets from completely fitting together, which affects the elasticity of the elastic terminal in the compression area. At least three bending parts are arranged in the compression area, so that the elastic terminal has sufficient compression space, and the bending parts have a large fillet design, and the radius of curvature is set to be more than 3 times the thickness of the elastic conductive sheet, which is more conducive to the compression deformation of the elastic terminal. The contact surface of the elastic terminal of the present application is designed with an inclination angle, so that the contact surface can contact with the docking connector more smoothly during compression. The fixing rod of the elastic terminal of the present application can play a guiding role, so that the elastic terminal is compressed along the fixing rod. Description of the Drawings

[0018] Figure 1 is a schematic structural view of the elastic terminal of the present utility model.

[0019] Figure 2 is a three-dimensional structural view of the elastic terminal of the present utility model.

[0020] Figure 3 is a schematic structural view of the elastic terminal of another embodiment of the present utility model.

[0021] Figure 4 is Figure 2 a partial enlarged view of part A in

[0022] Figure 5 is Figure 2 The partial enlarged view of part B in

[0023] Wherein: 1. Compression area; 2. Fixing area; 11. Contact surface; 12. Bending part; 3. Axial line; 111. Convex rib; 41. Partition groove; 4. Elastic conductive sheet; 5. Partition board; 6. Fixing rod; 13. Straight section. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] It should be noted that in the description of the present invention, the terms "first", "second", etc. are only used for descriptive purposes and to distinguish similar objects, and there is no sequence between them, nor can they be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0026] As Figure 1 and 2 shown, the elastic terminal of the board-to-board connector of the present application includes at least two elastically conductive sheets 4 stacked, and each elastically conductive sheet 4 has a compression area 1 and a fixing area 2. In the compression area 1, the elastically conductive sheet 4 is bent back and forth to form a plurality of straight sections 13 and a plurality of bending parts 12 connecting adjacent two straight sections 13. The outer side wall of the straight section 13 at the end of the outermost elastically conductive sheet 4 is the contact surface 11 in contact with the docking connector. When the elastic terminal is in a non-compressed state, there is a gap between the elastically conductive sheets 4; when the elastic terminal is compressed, the elastically conductive sheets 4 contact each other.

[0027] A plurality of protrusions are provided on the contact surface 11, and the contact surface 11 contacts the docking connector through the protrusions. As Figure 4 shown, in a preferred embodiment, a plurality of grooves are formed on the contact surface 11, and the plurality of grooves are arranged along the length direction of the elastic terminal. The protrusions are the convex ribs 111 formed between two grooves. This design can increase the effective contact points between the contact surface 11 and the docking connector, and further increase the reliability of the contact. A partition groove 41 is formed on the surface of the elastically conductive sheet 4 along the length direction, and the partition groove 41 extends to the entire compression area 1. The partition groove 41 reduces the stiffness of the elastically conductive sheet 4 and improves the deformation ability of the elastically conductive sheet 4, making it easier to be compressed. AsFigure 5 As shown, within the fixed region 2, a partition 5 is provided between two adjacent elastic conductive sheets 4 to prevent the adjacent elastic conductive sheets 4 from being fully attached to each other, which may affect the elasticity of the elastic terminals in the compression region 1. The end of the contact surface 11 gradually approaches the mating surface of the docking connector, forming an inclination angle between the contact surface 11 and the mating surface of the docking connector, which enables the contact surface 11 to contact the docking connector more smoothly during compression. The elastic conductive sheet 4 is a long strip-shaped metal sheet, and the number of the bending portions 12 is at least 3. The radius of curvature of the bending portion 12 is greater than three times the thickness of the elastic conductive sheet 4. This design is more conducive to the compression deformation of the elastic terminals.

[0028] In a preferred embodiment, as Figure 3 shown, the elastic terminal further includes a fixing rod 6. The fixing rod 6 passes through the elastic terminal in the compression region 1 along the axial line 3 of the elastic terminal. A spring is provided at the lower end of the fixing rod 6. When the elastic terminal is compressed, the elastic terminal in the compression region 1 slides along the fixing rod 6. The fixing rod 6 can play a guiding role to enable the elastic terminal to be compressed along the fixing rod 6.

[0029] The above embodiments are merely preferred embodiments given to fully illustrate the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention. The protection scope of the present invention is subject to the claims.

Claims

1. An elastic terminal of a board-to-board connector, characterized in that, It includes at least two elastically conductive sheets (4) arranged in a stacked manner. Each elastically conductive sheet (4) has a compression zone (1) and a fixing zone (2). In the compression zone (1), the elastically conductive sheet (4) is bent back and forth to form a plurality of straight segments (13) and a plurality of bending portions (12) connecting two adjacent straight segments (13). The outer sidewall of the straight segment (13) at the end of the elastically conductive sheet (4) located in the outermost layer is a contact surface (11) that contacts the docking connector.

2. The elastic terminal according to claim 1, wherein A plurality of protrusions are provided on the contact surface (11), and the contact surface (11) contacts the docking connector through the protrusions.

3. The resilient terminal according to claim 2, wherein A plurality of grooves are formed in the contact surface (11), and the plurality of grooves are arranged along the length direction of the elastic terminal. The protrusion is a rib (111) formed between two grooves.

4. The elastic terminal according to claim 1, wherein A separation groove (41) is formed in the surface of the elastically conductive sheet (4) along the length direction, and the separation groove (41) extends to the entire compression zone (1).

5. The elastic terminal according to claim 1, wherein In the fixing zone (2), adjacent elastically conductive sheets (4) are separated by a partition (5).

6. The elastic terminal according to claim 1, wherein The elastically conductive sheet (4) is a long strip-shaped metal sheet.

7. The elastic terminal according to claim 1, wherein The number of the bending portions (12) is at least 3.

8. The elastic terminal according to claim 7, wherein The radius of curvature of the bending portion (12) is greater than three times the thickness of the elastically conductive sheet (4).

9. The elastic terminal according to claim 1, wherein The elastic terminal further includes a fixing rod (6). The fixing rod (6) passes through the elastic terminal located in the compression zone (1) along the axial line (3) direction of the elastic terminal. A spring is provided at the lower end of the fixing rod (6). When the elastic terminal is compressed, the elastic terminal located in the compression zone (1) slides along the fixing rod (6).

10. The elastic terminal according to claim 1, wherein, The end of the contact surface (11) gradually approaches the docking surface of the docking connector, so that an inclination angle is formed between the contact surface (11) and the docking surface of the docking connector.

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