Spring claw contact with anti-drop structure

Abstract

The utility model discloses an anti-disengagement structure spring claw contact element, which comprises a spring claw and a connecting part, the connecting part is arranged in a stepped cylinder shape, a sliding groove A is arranged on the connecting part, the spring claw is arranged in the sliding groove A and is in interference fit with the sliding groove A, one end of the sliding groove A is provided with an opening, and the other end of the sliding groove A is provided with a groove A. According to the utility model, by adopting the flanging design at the opening, the problem that the spring claw is easy to fall off in the use process is solved, the opening is protected to a certain extent, and the problem that the spring claw is easy to push into the bottom of the chute A due to the inclination of the contact pin can be prevented. The problem that the spring claw slides into the bottom of the sliding groove A in the using process is further solved by adopting a method of increasing steps.

Description

Technical Field

[0001] The utility model belongs to the technical field of contacts, and in particular relates to a spring claw contact with an anti-slip structure. Background Art

[0002] Spring claw contacts have been mass-produced since the 1980s and are suitable for applications in all areas of the electronics industry. They are widely used in integrated circuit sockets and various connectors. Cost savings can be achieved through selective electroplating of spring claws and syringes under the same performance indicators. Currently, Swiss Presti has developed more than 40 different spring claws, providing 3 to 8 claws to achieve the best mechanical and electrical performance indicators, with inter-matching male pin diameters ranging from 0.3mm to 2.45mm and rated currents ranging from milliamperes to 40A. The existing technology is prone to spring claw detachment in high temperature environments or dimensional tolerances, which seriously affects the reliability of electrical connectors.

[0003] The patent document with the announcement number CN104319495A discloses a spring claw, an array spring claw combination socket contact and an electrical connector. The spring claw is used for the array spring claw combination socket contact, which is wound and includes a ring portion at the rear end and a claw portion provided at the front end of the ring portion. The claw portion gradually approaches the axis of the ring portion from the back to the front. The claw portions are arranged at intervals around the axis of the ring portion. The front end of the ring portion is also provided with a support arm that protrudes forward and is used to support the corresponding spring claw in the front. The support arm is located between the corresponding two adjacent claw portions. Although the patent discloses a spring claw including a rear end ring portion 11 and a claw portion 12 provided at the front end of the ring portion 11, the claw portion 12 is arranged in a curved shape, which is different from the present application; the patent does not disclose the relevant structure of the connecting portion.

[0004] The patent document with announcement number CN220439932U discloses a high-current contact and an electrical connector. The high-current contact includes a contact body and a support sleeve. The contact body is a tubular structure. The outer peripheral surface of the first end of the contact body is provided with a plurality of connection holes evenly distributed along the circumferential direction. The hole wall of the connection hole is provided with a stamped contact spring claw. The stamped contact spring claw has a contact portion protruding toward the inner side of the tubular structure. The support sleeve is sleeved on the first end of the contact body. The support sleeve is provided as an annular structure. The support sleeve includes a sleeve ring and a plurality of support protrusions arranged at intervals on one side of the sleeve ring. The plurality of support protrusions are arranged one-to-one with the plurality of stamped contact spring claws. Although the patent discloses the contact body and the support sleeve, the support sleeve is provided outside the contact body, and the internal structure of the contact body is different from that of the present application. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a spring claw contact piece with an anti-slip structure.

[0006] The utility model is realized through the following technical solutions.

[0007] The utility model provides a spring claw contact piece with an anti-slip structure, comprising a spring claw and a connecting portion, wherein the connecting portion is arranged in a stepped cylindrical shape, a slide groove A is arranged on the connecting portion, the spring claw is placed in the slide groove A for interference connection, an opening is arranged at one end of the slide groove A, and a groove A is arranged at the other end of the slide groove A.

[0008] Preferably, the spring claw comprises a spring claw seat and a claw piece, the spring claw seat is in a circular shape, one end of the claw piece is connected to the spring claw seat, and a plurality of claw pieces are evenly distributed along the circumference of one end of the spring claw seat.

[0009] Preferably, a groove B is provided on the spring claw seat, the groove B is provided between adjacent claw pieces, and the claw pieces are inclined on the spring claw seat.

[0010] Preferably, a flap is provided on the opening, and the diameter of the opening is smaller than the outer diameter of the spring claw.

[0011] Preferably, a step is provided on the inner wall of the slide groove A close to the opening, and the diameter of the step is smaller than the outer diameter of the spring claw.

[0012] Preferably, the distance from the step to the opening is shorter than the length of the spring claw.

[0013] Preferably, a convex ring is provided on the outer wall of the connecting portion, and the cross-section of the convex ring is trapezoidal.

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

[0015] The utility model adopts a flip-open design at the opening to solve the problem that the spring claw is easy to fall out during use, and at the same time has a certain protective effect on the opening, which can prevent the pin from tilting and easily pushing the spring claw into the bottom of the slide groove A. The method of adding a step further solves the problem that the spring claw slides into the bottom of the slide groove A during use.

[0016] The utility model solves the problem that the spring claw of the ordinary spring claw contact piece falls out and slides into the bottom of the hole due to stress relaxation of the socket in a high temperature environment or when the matching size is out of tolerance, thereby improving the reliability of the contact piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of area A of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the spring claw of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the connection part of the utility model;

[0021] Figure 5 It is a three-dimensional structural schematic diagram of the utility model;

[0022] In the figure: 1-spring claw, 11-spring claw seat, 12-claw piece, 13-groove B, 2-connecting part, 21-slide groove A, 22-opening, 23-groove A, 24-turn-over, 25-step, 3-convex ring. DETAILED DESCRIPTION

[0023] The technical solution of the utility model is further described below, but the scope of protection required is not limited to the description.

[0024] Example:

[0025] like Figures 1 to 5 As shown, a spring claw contact with an anti-escape structure includes a spring claw 1 and a connecting part 2. The connecting part 2 is arranged in a stepped cylindrical shape. A slide groove A21 is arranged on the connecting part 2. The slide groove A21 serves as a socket. The spring claw 1 is placed in the slide groove A21 for interference connection. An opening 22 is arranged at one end of the slide groove A21, and the opening 22 is a socket mouth. A groove A23 is arranged at the other end of the slide groove A21 for adapting to the shape of the pin.

[0026] The spring claw 1 includes a spring claw seat 11 and a claw piece 12. The spring claw seat 11 is annular. One end of the claw piece 12 is connected to the spring claw seat 11. A plurality of claw pieces 12 are evenly distributed along the circumference of one end of the spring claw seat 11.

[0027] The spring claw seat 11 is provided with a groove B13, and the groove B13 is provided between adjacent claw pieces 12. The claw pieces 12 are provided obliquely on the spring claw seat 11, and the ends of the claw pieces 12 away from the spring claw seat 11 are close to each other.

[0028] The opening 22 is provided with a flap 24, and the diameter of the opening 22 is smaller than the outer diameter of the spring claw 1, so as to prevent the spring claw 1 from escaping from the slide groove A21 during use. At the same time, the reduced opening 22 has a certain protective effect on the spring claw 1, which can prevent or reduce the impact on the spring claw during the docking process of the connecting part and reduce the sinking force of the spring claw.

[0029] A step 25 is arranged on the inner wall of the slide groove A21 near the opening 22, and the diameter of the step 25 is smaller than the outer diameter of the spring claw 1. This arrangement can prevent the spring claw 1 from sinking when it is subjected to external force or the matching size is out of tolerance, thereby avoiding electrical contact failure.

[0030] The distance from the step 25 to the opening 22 is shorter than the length of the spring claw 1, so that the spring claw 1 will not affect the contact with the pin when it sinks. In addition, it can avoid interference between the step and the root of the claw piece 12 when the spring claw 1 is connected to the pin, which shortens the spring claw force arm and increases the contact separation force, thereby affecting the use.

[0031] A convex ring 3 is provided on the outer wall of the connecting portion 2. The cross section of the convex ring 3 is trapezoidal, which can play a role in limiting and fixing after the outer wall of the connecting portion 2 is connected to other structures.

Claims

1. A retaining structure spring claw contact, characterized in that: It includes a spring claw (1) and a connecting part (2). The connecting part (2) is arranged as a stepped cylinder. A chute A (21) is provided on the connecting part (2). The spring claw (1) is placed in the chute A (21) and is in interference connection. An opening (22) is provided at one end of the chute A (21), and a groove A (23) is provided at the other end of the chute A (21).

2. The anti-disengagement structure spring claw contact according to claim 1, wherein: The spring claw (1) includes a spring claw seat (11) and claw pieces (12). The spring claw seat (11) is annular. One end of the claw piece (12) is connected to the spring claw seat (11), and a number of claw pieces (12) are evenly distributed along the circumference at one end of the spring claw seat (11).

3. The anti-disengagement structure spring claw contact member according to claim 2, wherein: A groove B (13) is provided on the spring claw seat (11). The groove B (13) is provided between adjacent claw pieces (12), and the claw pieces (12) are inclined on the spring claw seat (11).

4. The anti-disengagement structure spring claw contact member according to claim 1, wherein: A turned edge (24) is provided on the opening (22), and the diameter of the opening (22) is smaller than the outer diameter of the spring claw (1).

5. The anti-disengagement structure spring claw contact member according to claim 1, characterized in that: A step (25) is provided on the inner wall of the chute A (21) on the side close to the opening (22), and the diameter at the step (25) is smaller than the outer diameter of the spring claw (1).

6. The anti-disengagement structure spring claw contact member according to claim 5, characterized in that: The distance from the step (25) to the opening (22) is shorter than the length of the spring claw (1).

7. The anti-disengagement structure spring claw contact member according to claim 1, characterized in that: A convex ring (3) is provided on the outer wall of the connecting part (2), and the cross-section of the convex ring (3) is trapezoidal.

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