Socket sleeve with good contact effect

Abstract

The utility model relates to the technical field of electrical connection spare, concretely relates to a socket plug sleeve with good contact effect, including bottom piece, the symmetric setting of bottom piece inserts piece, and the support section, the bending section and the contact section are formed to the insert piece through multiple times bending, and the contact section is provided with a plurality of notches parallel to the insertion direction, and the contact section is divided into a plurality of contact pieces. The contact piece includes the main piece and the vice piece of different width, and the inward side is bent to form the arc contact part. The utility model discloses through the design of piece by piece and makes each contact piece independent to fit the plug electric contact piece, and the point contact is converted into the multi-point distributed contact, and the line contact structure of arc contact part is matched, and the contact area is significantly expanded, and the contact resistance and the heating risk are reduced, and the poor contact problem caused by point contact is effectively solved, and the electric safety and reliability are improved.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, specifically to a socket sleeve with good contact performance. Background Technology

[0002] The socket socket is the core component that enables electrical connection between the plug and the socket, and its contact performance directly affects electrical safety and stability. Currently, most socket sockets on the market have a one-piece contact structure, meaning the contact area is a continuous metal sheet. In actual use, due to potential minor deformations, scratches, or oxide layers on the surface of the plug's electrical contacts, the one-piece contact structure cannot completely adhere to the contact surface, easily leading to point contact.

[0003] Point contact results in a small contact area and concentrated current density, which not only easily leads to excessive contact resistance and severe overheating, but also, with prolonged use, can cause metal oxidation and ablation due to localized high temperatures, forming "sticky spots" that further exacerbate poor contact and may even cause safety hazards such as short circuits and fires. Furthermore, the elastic deformation consistency of integral contact pieces is poor, and repeated insertion and removal can easily lead to localized elastic decay, resulting in insufficient clamping force and further amplifying the negative effects of point contact.

[0004] To address the problems of poor contact and overheating caused by point contact in existing socket sleeves, this invention provides a socket sleeve that effectively increases the contact area and avoids point contact by optimizing the contact structure design. Utility Model Content

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A socket sleeve with good contact effect includes a base plate, on which inserts are symmetrically arranged. The inserts are bent multiple times to form an elastic structure, including a support section, a bending section and a contact section connected end to end in sequence. Another section of the support section is connected to the base plate. The contact section has several cuts parallel to the insertion direction of the plug, dividing the contact section into several contact pieces.

[0007] Preferably, the plurality of release pieces includes at least one main piece and a plurality of sub-pieces, wherein the width of the main piece is greater than the width of the sub-pieces.

[0008] Preferably, the contact piece is bent inward to form an arc-shaped contact portion.

[0009] Preferably, the insert is made of tin-phosphor bronze.

[0010] Preferably, an arc-shaped spring is provided on the inner side of the main piece. One end of the arc-shaped spring is fixedly connected to the support section, and the other end is in contact with the inner side of the main piece. The edge of the arc-shaped spring does not extend beyond the edge of the main piece.

[0011] Preferably, the support section, bending section and contact section are integrally formed structures.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention divides the contact area into several independent contact pieces by setting a cut parallel to the insertion direction in the contact section. When the plug is inserted, each contact piece can adaptively deform according to the surface condition of the electrical contact piece, independently fitting different areas of the electrical contact piece, transforming the traditional single-point contact into a multi-point distributed contact, fundamentally avoiding the current concentration problem caused by point contact.

[0014] The main sheet of this invention undertakes the main conductive task, while the secondary sheet assists in contact. By designing the width difference between the main and secondary sheets, the total contact area is maximized while ensuring structural strength.

[0015] This utility model's arc-shaped spring provides additional elastic support for the contact pieces. Combined with the excellent elastic fatigue properties of the tin-phosphor bronze material, it ensures that each contact piece can maintain a stable clamping force after long-term use, avoiding contact loosening and point contact recurrence caused by elastic decay. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0017] Figure 2 for Figure 1 A partial view from AA;

[0018] Figure 3 This is a schematic diagram of the overall structure of Embodiment 2 of this utility model.

[0019] In the diagram: 1. Film; 2. Insert; 3. Support section; 4. Bending section; 5. Contact section; 6. Cutout; 701. Main film; 702. Sub-film; 8. Arc-shaped contact part; 9. Arc-shaped spring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example 1

[0023] like Figure 1-2 As shown in this embodiment, a socket sleeve with good contact performance is based on solving the point contact problem through a segmented structure. The sleeve includes a base plate 1, which serves as the basic mounting component for fixing to the socket housing. Two sets of inserts 2 are symmetrically arranged on the base plate 1. Each set of inserts 2 forms an elastic clamping structure through multiple bending, adapting to the two- or three-pole electrical contacts of the plug.

[0024] In this embodiment, the insert 2 is integrally molded from tin-phosphor bronze, which has excellent conductivity and elasticity. Its structure, from bottom to top, consists of a support section 3, a bending section 4, and a contact section 5. The lower end of the support section 3 is fixedly connected to the base plate 1 to provide stable support; the bending section 4 is bent at a preset angle to provide elastic deformation space for the contact section 5; the contact section 5 is the key area for achieving conductive contact.

[0025] To solve the point contact problem, several cuts 6 parallel to the plug insertion direction are provided on the contact segment 5. These cuts 6 divide the contact segment 5 into several contact pieces, so that each contact piece can independently contact the plug's electrical contacts.

[0026] The plurality of contact pieces includes at least one main piece 701 and two or more secondary pieces 702, wherein the width of the main piece 701 is greater than the width of the secondary pieces 702. This arrangement ensures the structural strength of the insert. In this embodiment, the main piece 701 is located in the middle of the contact section, and the secondary pieces 702 are symmetrically distributed on both sides of the main piece. All contact pieces are bent inward to form an arc-shaped contact portion 8. In other embodiments, the main pieces can also be arranged on both sides, and the secondary pieces are arranged in the middle.

[0027] The working principle and beneficial effects of the above technical solution are as follows:

[0028] When the plug is inserted, the electrical contacts enter from the contact section inlet, pushing each contact to expand outward. The support section and bending section undergo elastic deformation to generate clamping force. Due to the separation effect of the cutouts, each contact independently adapts to the undulations of the electrical contact surface, and the arc-shaped contact part forms multi-point line contact with the electrical contact surface. The main piece maintains stable pressure with the assistance of the arc-shaped spring piece, and the auxiliary piece fills the area not covered by the main piece, achieving full fit and completely solving the point contact problem. Example 2

[0029] like Figure 3 As shown, in order to enhance the elastic recovery capability of the main plate 701, an arc-shaped spring sheet 9 is provided on the inner side of the main plate 701. One end of the arc-shaped spring sheet 9 is fixed to the support section 3, and the other end naturally abuts against the inner side of the main plate. When the main plate is compressed and deformed, the arc-shaped spring sheet generates a reverse elastic force to ensure that the main plate always fits tightly against the electrical contact piece and avoids local point contact caused by insufficient elasticity of the main plate.

[0030] The above are merely preferred embodiments of this utility model; however, the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and its improved concept, should be included within the scope of protection of this utility model.

Claims

1. A socket sleeve with good contact effect, characterized in that, Includes a base plate (1), on which inserts (2) are symmetrically arranged. The inserts (2) are bent multiple times to form an elastic structure, including a support section (3), a bending section (4) and a contact section (5) connected end to end in sequence. The other end of the support section (3) is connected to the base plate (1). The contact section (5) has several cuts (6) parallel to the insertion direction of the plug, dividing the contact section (5) into several contact pieces.

2. The socket sleeve with good contact effect according to claim 1, characterized in that: The plurality of contact pieces include at least one main piece (701) and a plurality of sub-pieces (702), wherein the width of the main piece (701) is greater than the width of the sub-pieces (702).

3. A socket sleeve with good contact effect according to claim 1 or 2, characterized in that: The contact piece (7) is bent inward to form an arc-shaped contact part (8).

4. The socket sleeve with good contact effect according to claim 1, characterized in that: The insert (2) is made of tin-phosphor bronze.

5. A socket sleeve with good contact effect according to claim 2, characterized in that: An arc-shaped spring piece (9) is provided on the inner side of the main piece (701). One end of the arc-shaped spring piece (9) is fixedly connected to the support section (3), and the other end is in contact with the inner side of the main piece (701). The edge of the arc-shaped spring piece (9) does not extend beyond the edge of the main piece (701).

6. The socket sleeve with good contact effect according to claim 1, characterized in that: The supporting section (3), bending section (4) and contact section (5) are integrally formed structures.

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