Contact of electric connector

Abstract

The utility model relates to an electric connector contact element, which comprises a pin seat, an expansion sleeve and a plurality of reeds, one end of each reed is fixedly connected with the expansion sleeve, the other end of each reed is bent to form a corner section, all the corner sections surround to form a surrounding opening, the caliber of the surrounding opening is smaller than the inner diameter of the expansion sleeve, the pin seat is provided with an accommodating hole, and the pin seat is provided with a through hole. And the expansion sleeve and all the reeds are accommodated in the accommodating hole. According to the technical scheme, due to the fact that the expansion sleeve and the reed are both contained in the containing hole, the number of parts is reduced, the reed is prevented from being exposed in the external environment, the electric leakage risk is reduced, and in addition, when the needle head is inserted and pulled out for many times, even if the elasticity of the reed is reduced, the reed is contained in the containing hole, and therefore the reliability of the needle head is improved. And the inner wall of the accommodating hole can still generate reverse extrusion force on the reed, so that the reed is tightly clamped on the peripheral surface of the needle head, and reliable electrical connection is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of electrical connector technology, and in particular relates to an electrical connector contact. Background Technology

[0002] Currently, electrical connectors are frequently used in all aspects of daily life to achieve electrical input and output connections. Common types include plugs, sockets, and MC connectors. These connectors have different numbers of contacts depending on the number of phases transmitting power or current. They are widely used in various electronic products, forming the main functional components. With the development of electronic technology, circuit structures are becoming increasingly complex, and the structures of electrical connectors are also becoming more complex, with increasingly demanding application scenarios and conditions. A common pluggable electrical connector structure generally includes a socket and a pin. The socket has a recess; when the pin is inserted into the recess, the socket and pin achieve electrical connection. To disconnect the electrical connection, the pin is simply pulled out.

[0003] For example, patent document with publication number "CN102097696A" discloses a highly elastic spring claw type socket, which includes a sheath, a spring claw, and a socket. The spring claw is assembled on the outer circle of the socket, and the socket has a step for axial positioning of the spring claw. The spring claw is a rotating part with multiple elastic contact pieces. The ends of the multiple elastic contact pieces are joined together to form an inscribed circle, forming an elastic structure that can be opened and closed. The sheath (1) is sleeved around the spring claw and the socket to fix the spring claw on the socket. The ends of the elastic contact pieces are provided with arc-shaped guide portions. The sheath (1) is press-fitted and pressed against the socket to reliably fix the spring claw inside the socket. However, with this patented technology, the spring claw is housed inside the sheath. When the sheath is lost, the spring claw is exposed to the external environment, which can easily lead to leakage risks. In addition, when the needle is inserted and removed many times, the elasticity of the spring claw itself decreases, and the deformation capacity of the spring claw decreases. Since the spring claw is set on the periphery of the insertion hole, it is difficult for the spring claw to reliably close and clamp the needle after it opens, which reduces the reliability of the electrical connection. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an electrical connector contact.

[0005] This utility model provides an electrical connector contact, including a pin seat, an expansion sleeve, and multiple springs. One end of each spring is fixedly connected to the expansion sleeve, and the other end of each spring is bent to form a corner segment. All corner segments surround to form a surround, and the diameter of the surround is smaller than the inner diameter of the expansion sleeve. The pin seat is provided with a receiving hole, and the expansion sleeve and all springs are accommodated in the receiving hole.

[0006] The receiving hole is a blind hole with one and only one opening.

[0007] The opening of the receiving hole is also bent to form a narrow opening, and the diameter of the narrow opening is smaller than the inner diameter of the receiving hole.

[0008] The inner wall of the receiving hole is also provided with a limiting step.

[0009] The expansion sleeve and the spring are manufactured as a single piece.

[0010] The opening of the expansion sleeve is also chamfered.

[0011] The number of springs is multiple, and the multiple springs are arranged at equal intervals around the central axis of the expansion sleeve.

[0012] The number of expansion sleeves is six or more.

[0013] The outer surface of the needle holder is also provided with a barbed plate. One side surface of the barbed plate is aligned with the radial direction of the needle holder, and the other side surface of the barbed plate has an angle of inclination of 45° to 90° relative to the radial direction of the needle holder.

[0014] The beneficial effects of this utility model are as follows: By adopting the technical solution provided by this utility model, since the expansion sleeve and the spring are both accommodated in the receiving hole, the number of parts is reduced, the spring is not exposed to the external environment, and the risk of leakage is reduced. In addition, when the needle is inserted and removed many times, even if the elasticity of the spring itself decreases, since the spring is accommodated in the receiving hole, the inner wall of the receiving hole can still generate a reverse squeezing force on the spring, so that the spring is tightly clamped on the outer peripheral surface of the needle, ensuring reliable electrical connection. Attached Figure Description

[0015] Figure 1 This is the front view of this utility model;

[0016] Figure 2 This is a front view of the needle holder of this utility model;

[0017] Figure 3 This is a front view of the expansion sleeve and spring of this utility model;

[0018] Figure 4 This is a top view of the expansion sleeve and spring of this utility model;

[0019] Figure 5 This is a front view of the pluggable reliable electrical connector of this utility model.

[0020] In the diagram: 1-needle seat, 2-expansion sleeve, 3-spring, 4-corner section, 5-enclosure, 6-accommodation hole, 7-reduction opening, 8-limiting step, 9-chamfer, 10-stab platform, 11-needle. Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings, but the scope of protection claimed is not limited to the description.

[0022] This utility model provides an electrical connector contact element, such as... Figures 1 to 5 As shown, it includes a needle base 1, an expansion sleeve 2 and multiple springs 3. One end of the spring 3 is fixedly connected to the expansion sleeve 2, and the other end of the spring 3 is bent to form a corner segment 4. All corner segments 4 surround to form a surround 5, and the diameter of the surround 5 is smaller than the inner diameter of the expansion sleeve 2. The needle base 1 is provided with a receiving hole 6, and the expansion sleeve 2 and all springs 3 are accommodated in the receiving hole 6.

[0023] By adopting the technical solution provided by this utility model, since the expansion sleeve and the spring are both accommodated in the receiving hole, the number of parts is reduced, the spring is not exposed to the external environment, and the risk of leakage is reduced. In addition, when the needle is inserted and removed many times, even if the elasticity of the spring itself decreases, since the spring is accommodated in the receiving hole, the inner wall of the receiving hole can still generate a reverse squeezing force on the spring, so that the spring is tightly clamped on the outer peripheral surface of the needle, ensuring reliable electrical connection.

[0024] Specifically, the receiving hole 6 is a blind hole with one and only one opening. The opening of the receiving hole 6 is also bent to form a constriction 7, and the diameter of the constriction 7 is smaller than the inner diameter of the receiving hole 6. The inner wall of the receiving hole 6 is also provided with a limiting step 8. The limiting step 8 allows the expansion sleeve 2 and the spring 3 to be respectively accommodated in two parts of the receiving hole 6.

[0025] Furthermore, the expansion sleeve 2 and the spring 3 are manufactured as a single piece. The surfaces of the expansion sleeve 2 and the spring 3 are gold-plated to improve their electrical conductivity, and the opening of the expansion sleeve 2 is also chamfered at 9. This prevents the expansion sleeve 2 and the spring 3 from coming out of the receiving hole 6.

[0026] Furthermore, there are multiple springs 3, which are arranged at equal intervals around the central axis of the expansion sleeve 2. Preferably, there are six or more expansion sleeves 2. The outer surface of the needle holder 1 is also provided with a barbed plate 10. One side surface of the barbed plate 10 is aligned with the radial direction of the needle holder 1, and the angle between the other side surface of the barbed plate 10 and the radial direction of the needle holder 1 is 45° to 90°. When the needle holder 1 is installed in other electrical connector structures, the needle holder 1 can be limited by the barbed plate 10, so that the needle holder 1 is tightly connected to other components and prevents the needle holder 1 from becoming loose.

[0027] In addition, such as Figure 5As shown, this application also provides a pluggable reliable electrical connector, characterized in that it includes the aforementioned electrical connector contacts and a pin 11, the outer diameter of which is consistent with the inner diameter of the expansion sleeve 2. After the pin 11 has been plugged and unplugged multiple times within the receiving hole 6, even if the spring's elasticity decreases, the inner wall of the receiving hole can still exert a reverse compressive force on the spring, causing it to tightly clamp onto the outer circumferential surface of the pin, ensuring reliable electrical connection.

Claims

1. An electrical connector contact, characterized in that: It includes a needle seat (1), an expansion sleeve (2) and multiple springs (3). One end of the spring (3) is fixedly connected to the expansion sleeve (2), and the other end of the spring (3) is bent to form a corner segment (4). All the corner segments (4) surround to form a girder (5), and the diameter of the girder (5) is smaller than the inner diameter of the expansion sleeve (2). The needle seat (1) is provided with a receiving hole (6), and the expansion sleeve (2) and all the springs (3) are accommodated in the receiving hole (6).

2. The electrical connector contact as described in claim 1, characterized in that: The receiving hole (6) is a blind hole with one and only one opening.

3. The electrical connector contact as described in claim 1, characterized in that: The opening of the receiving hole (6) is also bent to form a narrow opening (7), and the diameter of the narrow opening (7) is smaller than the inner diameter of the receiving hole (6).

4. An electrical connector contact as described in any one of claims 1 to 3, characterized in that: The inner wall of the receiving hole (6) is also provided with a limiting step (8).

5. The electrical connector contact as described in claim 1, characterized in that: The expansion sleeve (2) and the spring (3) are manufactured as a single piece.

6. An electrical connector contact as described in claim 1 or 5, characterized in that: The opening of the expansion sleeve (2) is also provided with a chamfer (9).

7. An electrical connector contact as described in claim 1 or 5, characterized in that: The number of springs (3) is multiple, and the multiple springs (3) are arranged at equal intervals around the central axis of the expansion sleeve (2).

8. An electrical connector contact as described in claim 7, characterized in that: The number of expansion sleeves (2) is more than 6.

9. An electrical connector contact as described in claim 1, characterized in that: The outer surface of the needle seat (1) is also provided with a piercing platform (10). One side surface of the piercing platform (10) is aligned with the radial direction of the needle seat (1), and the other side surface of the piercing platform (10) is inclined at an angle of 45° to 90° relative to the radial direction of the needle seat (1).

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