A low cost chip contact jack structure

Abstract

The utility model discloses a low -cost piece formula contact piece jack structure relates to connector technical field, including conductive main part and steel case, and the conductive main part includes the elastic region and the end region of increasing thickness in proper order, and is provided with the transition area of thickness conversion between the elastic region and the end region, is equipped with the elastic contact cantilever on the elastic region, and the steel case sets up on the transition area and cooperates with the elastic contact cantilever on the elastic region. The material of elastic region is thin, and a plurality of contacts are arranged on the elastic contact cantilever, and the conductive function can be realized after contacting with the pin; the transition area is the thick, thin material conversion area; the end region is the connecting area of pencil and similar pencil function components, and generally uses the welding, crimping etc. Mode to realize the connecting function. The steel case is wrapped in the outside of conductive main part, can promote the contact stability and the ageing resistance of elastic region contact, realizes the anti -back function simultaneously, can guarantee the contact stability of contact region, and can solve the problem of few and high cost of existing contact.

Description

Technical Field

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

[0002] In the automotive and industrial connector industry, contacts are core functional components, fulfilling the most basic functions and requirements of connectors, such as current carrying capacity, reliability, and durability. Currently used surface-mount contacts are all made of copper, resulting in high material costs. Furthermore, the number of contacts is limited, leading to generally lower current carrying capacity. Meeting higher current carrying capacity requirements necessitates larger contact sizes, further increasing costs. The market's surface-mount contacts all use copper as the raw material, making cost reduction difficult; the uniform cross-section of the conductive body also limits the number of contacts that can be arranged.

[0003] Existing technology, such as the Chinese patent publication number CN 115579659 A, discloses a plate-type contact socket structure and connector. The plate-type contact socket structure includes a contact area, a transition area, and a termination area connected sequentially from front to back. The contact area includes two opposing conductive metal plates, with a conductive spring riveted between them. The conductive spring has a claw that contacts an adapter pin, and the claw has a contact point that makes contact with the adapter pin. The transition area connects the two conductive metal plates in the contact area, and the termination area enables the socket structure to connect to a wire or other external conductor. Although this patent's plate-type contact socket structure has a thinner intermediate conductive spring compared to other socket structures, allowing for a larger number of contacts, it still suffers from high contact resistance, low structural stability, and high cost. Summary of the Invention

[0004] To address the shortcomings of the aforementioned background technology, this utility model proposes a low-cost plate contact socket structure, solving the problems of low contact quantity and high cost in existing plate contact devices. This utility model can increase the number of contacts by more than 1.5 times, has lower contact resistance, stronger current carrying capacity, and utilizes aluminum and copper-aluminum composite materials, resulting in significant cost and weight reduction.

[0005] The technical solution of this utility model is implemented as follows: a low-cost sheet contact socket structure includes a conductive body and a steel shell. The conductive body includes an elastic region and a termination region with progressively increasing thickness. A transition region with thickness transition is provided between the elastic region and the termination region. An elastic contact cantilever is provided on the elastic region. The steel shell is provided on the transition region and cooperates with the elastic contact cantilever on the elastic region.

[0006] More preferably, the elastic contact cantilever includes a plurality of adjacently arranged spring claws one and spring claw two, with an arc-shaped contact portion in the middle of spring claw one and spring claw two, a smooth transition portion at one end of the arc-shaped contact portion, and a connecting rod portion at the other end of the arc-shaped contact portion. The connecting rod portion is connected to the elastic region, and a gap is provided between the connecting rod portion of spring claw one and the connecting rod portion of the adjacent spring claw two.

[0007] More preferably, the transition region and the termination region are two-layer copper-aluminum composite plate structures, three-layer copper-aluminum composite plate structures, copper plate structures, or copper-aluminum side composite plate structures.

[0008] More preferably, the transition region is provided with at least one groove that mates with the steel shell.

[0009] More preferably, the elastic region forms a 180° plate structure or a 90° plate structure with the transition region and the end-connection region.

[0010] More preferably, the conductive body is a double-layer plate bent inward in the middle, and the upper part of the double-layer plate is provided with two sets of symmetrically arranged riveting grooves.

[0011] More preferably, the double-layer plate has a second groove in the middle, which is located between two sets of riveting grooves.

[0012] More preferably, the steel shell is provided with a spring for providing positive pressure to the arc-shaped contact portion, and the two sides of the steel shell are also provided with limiting members corresponding to the groove.

[0013] More preferably, the steel shell has an arc-shaped bend at the end opening for guiding the insertion pin, and the steel shell also has an outwardly extending spring-loaded structure.

[0014] More preferably, the steel shell is provided with a protruding structure for supporting the mating surface of the pin.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. The elastic region of this invention is made of a thinner material, and multiple contacts are arranged on the elastic contact cantilever, which can achieve conductivity after contacting the pin. The transition region is the area where thick and thin materials change. The termination region is the connection area between the socket structure and wires, copper busbars, aluminum busbars, and other wire harness-like functional components, and generally uses welding, crimping, or other methods to achieve the connection function. A steel shell is wrapped around the outside of the conductive body, which can improve the contact stability and aging resistance of the contacts in the elastic region, while also achieving an anti-detachment function. This structure is suitable for automotive and industrial connectors, which can ensure the contact stability of the contact area and solve the problems of insufficient contact quantity and high cost in existing connectors.

[0017] 2. The spring claws 1 and 2 on the elastic region distribute the cantilever arms of the contacts into inner and outer layers through a tearing mechanism. This reduces volume resistance and contact resistance while increasing the number of contacts. The smooth transition section is located at the front end of the elastic region, with a flat surface on the elastic contact cantilever. When the pin is inserted into the socket, this flat surface contacts the surface of the outer steel shell, preventing excessive deformation of the spring and increasing the positive force. The arc-shaped contact section of the elastic region allows the current conducted through the pin and contacts to directly reach the termination area through the elastic region and transition region, improving current conduction efficiency and current carrying capacity. The contacts in the elastic region are distributed on the same plane, but staggered in the direction of pin insertion, which reduces insertion and extraction forces.

[0018] 3. The steel shell encasing the conductive body improves the contact stability and aging resistance of the elastic area contacts, while also providing an anti-retraction function. A groove in the transition area cooperates with the steel shell to fix it to the conductive body, thus confining the elastic area within the steel shell. This ensures the connection between the elastic area and the pin, and also assists in connecting the contacts on the spring claw to the pin. Attached Figure Description

[0019] To more clearly illustrate the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the conductive body;

[0022] Figure 3 This is a schematic diagram of the symmetrical 180° two-layer copper-aluminum composite of this utility model;

[0023] Figure 4 This is a schematic diagram of the symmetrical 90° two-layer copper-aluminum composite of this utility model;

[0024] Figure 5 This is a schematic diagram of the symmetrical 180° three-layer copper-aluminum composite of this utility model;

[0025] Figure 6 This is a schematic diagram of the symmetrical 90° three-layer copper-aluminum composite of this utility model;

[0026] Figure 7 This is a schematic diagram of the symmetrical 180° single-layer copper-aluminum composite of this utility model;

[0027] Figure 8 This is a schematic diagram of the symmetrical 90° single-layer copper-aluminum composite of this utility model;

[0028] Figure 9 This is a schematic diagram of the symmetrical 180° double-layer copper scheme of this utility model;

[0029] Figure 10 This is a schematic diagram of the symmetrical 90° three-layer copper-aluminum composite of this utility model;

[0030] Figure 11 This is a schematic diagram of the asymmetric 180° copper-aluminum side composite of this utility model;

[0031] Figure 12 This is a schematic diagram of the asymmetrical 90° copper-aluminum side composite of this utility model.

[0032] In the diagram: 1. Conductive body, 101. Elastic area, 102. Transition area, 103. Termination area, 2. Steel shell, 3. Spring claw one, 4. Spring claw two, 5. Smooth transition part, 6. Arc-shaped contact part, 7. Connecting rod part, 8. Groove one, 9. Riveting groove, 10. Groove two, 11. Spring, 12. Limiting component, 13. Arc-shaped bending part, 14. Spring tongue structure, 15. Protruding structure. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] like Figure 1 As shown in Embodiment 1, a low-cost sheet-type contact socket structure includes a conductive body 1 and a steel shell 2. The conductive body 1 includes an elastic region 101 and a termination region 103 with progressively increasing thickness. A transition region 102 for thickness transition is provided between the elastic region 101 and the termination region 103. An elastic contact cantilever is provided on the elastic region 101. The steel shell 2 is disposed on the transition region 102 and cooperates with the elastic contact cantilever on the elastic region 101. The material of the elastic region 101 is relatively thin, and multiple contacts are arranged on the elastic contact cantilever, which can achieve conductivity after contacting the pin. The transition region 102 is the area for thick and thin material transition. The termination region 103 is the connection area between the socket structure and wire harnesses and similar functional components such as wires, copper busbars, and aluminum busbars. The connection function is generally achieved by welding, crimping, etc. The steel shell 2 wraps around the outside of the conductive body 1, which can improve the contact stability and aging resistance of the contacts in the elastic region 101, and at the same time achieve the anti-retraction function.

[0035] Specifically, the material thickness of the elastic region 101 is thinner than that of the termination region 103, allowing for the arrangement of more contacts, thereby reducing contact resistance and improving current carrying capacity. The transition region 102 and the termination region 103 can be arranged using a copper-aluminum composite method, achieving cost reduction and weight reduction. The pins that mate with the low-cost surface-mount contact socket structure can use pure copper, copper-aluminum composite, or copper-clad aluminum materials. This structure is suitable for automotive and industrial connectors, ensuring contact stability in the contact area while solving the problems of insufficient contact quantity and high cost in existing connectors.

[0036] like Figure 2 As shown, in this embodiment, the elastic contact cantilever includes several sets of adjacently arranged spring claws 3 and 4, which are spaced apart and are integrally formed with the elastic region 101. An arc-shaped contact portion 6 is provided in the middle of each spring claw 3 and 4. One end of the arc-shaped contact portion 6 has a smooth transition portion 5, and the other end of the arc-shaped contact portion 6 is a connecting rod portion 7. The connecting rod portion 7 is connected to the elastic region 101, and a gap is provided between the connecting rod portion 7 of the spring claw 3 and the connecting rod portion 7 of the adjacent spring claw 4. The smooth transition portion 5, the arc-shaped contact portion 6, and the connecting rod portion 7 are integrally formed, and the connection between the smooth transition portion 5, the arc-shaped contact portion 6, and the connecting rod portion 7 is smooth. Spring claw 3 and spring claw 4 are bent relative to the elastic region 101. The bend is made with an arc transition to connect the connecting rod 7 and the transition region 102. The contact points of the arc contact portion 6 of spring claw 3 and the arc contact portion 6 of spring claw 4 are located on the same horizontal plane. The smooth transition portion 5 of spring claw 3 and the smooth transition portion 5 of spring claw 4 are located on the same plane. Preferably, the plane on which the smooth transition portion 5 of spring claw 3 and the smooth transition portion 5 of spring claw 4 are located is the same plane as the mating plane of the transition region 102 and the steel shell 2. The plane at the end of the smooth transition portion 5 of spring claw 3 is offset from the plane at the end of the smooth transition portion 5 of spring claw 4.

[0037] Specifically, the spring claws 3 and 4 on the elastic region 101 are designed to tear the contact cantilever into two layers, which reduces volume resistance and contact resistance while increasing the number of contacts. The smooth transition section 5 is located at the front end of the elastic region 101 and has a flat surface on the elastic contact cantilever. When the pin is inserted into the socket, this flat surface contacts the surface of the outer steel shell 2, preventing the spring 11 from deforming excessively and increasing the positive force. The arc-shaped contact section 6 of the elastic region 101 allows the current conducted through the pin and contact to directly reach the termination region 103 through the elastic region 101 and the transition region 102, improving current conduction efficiency and current carrying capacity. The contacts of the elastic region 101 are distributed on the same plane, but staggered in the direction of pin insertion, which reduces insertion and extraction force.

[0038] like Figures 3-12 As shown in Embodiment 2, a low-cost sheet contact socket structure differs from the technical solution of Embodiment 1 in that the transition region 102 and the termination region 103 are two-layer copper-aluminum composite plate structures, three-layer copper-aluminum composite plate structures, copper plate structures, or copper-aluminum side composite plate structures. The transition region 102 connects the elastic region 101 and the termination region 103, achieving a transition from thicker to thinner material. The use of a copper-aluminum composite method achieves cost and weight reduction. The elastic region is a copper structure, and the transition region 102 and the termination region 103 are connected to the elastic region by a copper-aluminum-copper composite plate or an aluminum plate. The termination region 103 is the connection area between this socket structure and functional components such as wires, copper busbars, and aluminum busbars. Connection is generally achieved using welding, crimping, or riveting. The termination region 103 and the transition region 102 can use copper-aluminum composite materials to achieve cost and weight reduction.

[0039] like Figure 2 As shown, the transition region 102 is provided with at least one groove 8 that mates with the steel shell 2. The transition region 102 has two symmetrical grooves 8, which mate with the steel shell 2 to fix the steel shell 2 onto the conductive body 1, thereby confining the elastic region 101 within the steel shell 2. This ensures the connection between the elastic region 101 and the pin, and also assists in the connection between the contacts on the spring claw and the pin. The steel shell 2 wraps around the outside of the conductive body 1, improving the contact stability and aging resistance of the contacts in the elastic region 101, while also providing an anti-retraction function.

[0040] like Figures 3-8 As shown, the elastic region 101 forms a 180° or 90° plate-shaped structure with the termination region 103 through the transition region 102. The elastic region 101 and the transition region 102 are distributed at right angles or flat angles, which can adapt to the connection of various connectors and has a wide range of applications.

[0041] Specifically, when the elastic region 101 and the termination region 103 are at 180 degrees, the transition region 102 is provided with two symmetrical grooves 8; when the elastic region 101 and the termination region 103 are at 90 degrees, the elastic region 101 and the termination region 103 are connected to two adjacent sides of the transition region 102, and at this time, grooves 8 are provided on the other two adjacent sides. Preferably, two grooves 8 are provided on the side adjacent to the termination region 103, and one groove 8 is provided on the side adjacent to the elastic region 101. The grooves 8 are used to restrict the steel shell 2, ensuring that the steel shell 2 can always be connected to the conductive body 1, so that the steel shell parts are stuck into the conductive body 1 for positioning and cannot move back and forth.

[0042] All other structures are the same as in Example 1.

[0043] like Figures 3-8 As shown in Embodiment 3, a low-cost sheet-type contact socket structure is described. The conductive body 1 is a double-layered plate symmetrically bent inward from the middle. Two sets of symmetrically arranged riveting grooves 9 are provided on the upper part of the double-layered plate. By using a bent plate to form the double-layered plate, the elastic region 101, transition region 102, and termination region 103 are all double-layered structures, increasing the connection points between the conductive shell and the pin, and also increasing the contact area with the pin. The depth of the riveting grooves 9 is the same as that of the single-layered plate. The riveting grooves 9 are symmetrically arranged in pairs on the termination region 103 for connection with wire harnesses, copper busbars, aluminum busbars, and other wire harness-like functional components.

[0044] Specifically, the bending method of the conductive body 1 can be as follows: Figures 3-6 The bending method is from bottom to top, with the bend located on the side away from the steel shell 2. The bending method of the conductive body 1 can also be as follows: Figure 7 and Figure 8 The bending method shown is such that the bending point is located on the side adjacent to the steel shell 2. Preferably, when the elastic region 101 and the end-joining region 103 are at a 90-degree angle, the bending point is located on the side away from the elastic region 101. Optionally, when slotting the riveting groove 9, the plate can be drilled before bending the double-layer plate, and the riveting groove 9 can be formed after bending.

[0045] All other structures are the same as in Example 2.

[0046] like Figures 5-8 As shown in Embodiment 4, a low-cost sheet contact socket structure is provided. A second groove 10 is provided in the middle of the double-layer plate, located between two sets of riveting grooves 9. The second groove 10 is used to increase the connection area between the double-layer plate and the connector, making current transmission more direct.

[0047] All other structures are the same as in Example 3.

[0048] like Figures 1-12As shown in Embodiment 5, a low-cost sheet contact socket structure is provided. The steel shell 2 is provided with a spring 11 for providing positive pressure to the arc-shaped contact portion 6. Limiting members 12 corresponding to the groove 8 are also provided on both sides of the steel shell 2. The spring 11 on the steel shell 2 is arranged on the outer side of the elastic region 101. This spring 11 can provide positive force to the contact to improve the ability to resist stress relaxation.

[0049] Specifically, the spring 11 has a toothed structure corresponding to spring 11-1 and spring 11-2 within the elastic region 101. When the conductive body 1 is a double-layer bent plate, the spring 11 is symmetrically arranged on both sides of the steel shell 2, and two limiting members are provided on both sides of the steel shell 2. The limiting members are two L-shaped plates that are staggered vertically. When the conductive body 1 is a single-layer plate, the spring 11 is only arranged on one side of the steel shell 2, and an L-shaped plate is provided on both sides of the steel shell 2 for engaging with the groove 8 on the transition region 102.

[0050] In this embodiment, the steel shell 2 has an arc-shaped bend 13 at its end opening for guiding the pin, and a spring-loaded structure 14 extending outwards is also provided on the steel shell 2. The arc-shaped bend 13 and the steel shell 2 are integral structures, and the arc-shaped bend 13 is located on the side of the steel shell 2 adjacent to the elastic region 101. This is the opening for engaging with the pin. The arc-shaped bend 13 at the end of the steel shell 2 bends inwards and engages with the smooth transition portion 5 on the elastic contact cantilever, achieving dual guidance. This guides the pin to smoothly align with the socket structure and prevents the pin from shifting or deflecting, ensuring the relative position stability of the pin and the socket. The spring-loaded structure 14 can remain in place after engaging with the connector housing, and the opening of the spring-loaded structure faces the termination region 103.

[0051] Specifically, when the conductive body 1 is a double-layer bent plate or a single-layer plate, the arc-shaped bends 13 are symmetrically arranged at the opening of the steel shell 2 to ensure the guiding effect. When the conductive body 1 is a double-layer bent plate, the spring tongue structure 14 is arranged on the side of the steel shell 2 where the spring 11 is located. When the conductive body 1 is a single-layer plate, the spring tongue structure 14 is arranged on both sides of the steel shell 2 and is located on the same plane as the spring 11.

[0052] All other structures are the same as in Example 4.

[0053] like Figures 11-12 As shown in Embodiment 6, a low-cost sheet contact socket structure is provided, wherein the steel shell 2 is provided with a protrusion structure 15 for supporting the mating surface of the pin. This supports the mating surface of the pin to prevent insufficient interference fit at the contact point of the elastic region 101.

[0054] All other structures are the same as in Example 5.

[0055] like Figures 1-10As shown in Embodiment 7, a low-cost sheet contact socket structure includes a conductive body 1 and a steel shell 2. The conductive body 1 includes an elastic region 101, a transition region 102, and a termination region 103. The elastic region 101 is made of a thin material and has multiple contacts arranged thereon, which can achieve conductivity after contacting the pin. The transition region 102 is a transition area between thick and thin materials. The termination region 103 is the connection area between the socket structure and wire harnesses and similar functional components such as wires, copper busbars, and aluminum busbars, and is generally connected by welding, crimping, or other methods. The steel shell 2 wraps around the conductive body 1, which can improve the contact stability and aging resistance of the contacts in the elastic region 101, and at the same time achieve an anti-detachment function. In particular, the thin material of the elastic region 101 allows for more contacts to be arranged, thereby reducing contact resistance and increasing current carrying capacity. The transition region 102 and the termination region 103 can be arranged using a copper-aluminum composite method, which can achieve cost reduction and weight reduction. The pins that mate with the low-cost surface-mount contact socket structure can be made of pure copper, copper-aluminum composite, or copper-clad aluminum. This socket structure is suitable for automotive and industrial connectors, ensuring contact stability in the contact area while solving the problems of limited contact quantity and high cost associated with existing connectors.

[0056] The conductive body 1 includes an elastic region 101, a transition region 102, and a termination region 103.

[0057] The material arranged in the elastic region 101 is relatively thin, allowing for the arrangement of multiple contacts. These contacts, when combined with the pins, enable current conduction. The transition region 102 connects the elastic region 101 and the termination region 103, facilitating the transition from a thicker material to a thinner one. The termination region 103 is the connection area between this socket structure and functional components such as wires, copper busbars, and aluminum busbars. Connections are typically achieved using welding, crimping, or riveting. Both the termination region 103 and the transition region 102 can utilize copper-aluminum composite materials to reduce costs and weight.

[0058] The elastic region 101 distributes the cantilever of the contact into two layers by tearing, which can reduce the volume resistance and contact resistance while increasing the number of contacts. At the front end of the elastic region 101, there is a flat surface. When the pin is inserted into the socket, this flat surface will make contact with the flat surface of the outer steel shell 2, which can prevent the spring 11 from being over-deformed and increase the positive force.

[0059] A spring 11 on the steel shell 2 is arranged on the outer side of the elastic region 101. This spring 11 can provide positive force to the contact point to enhance the ability to resist stress relaxation.

[0060] The current conducted through the pins and contacts in the elastic region 101 can directly reach the termination region 103 through the elastic region 101 and the transition region 102, which can improve the current conduction efficiency and current carrying capacity. The contacts in the elastic region 101 are distributed on the same plane, but are staggered in the direction of pin insertion, which can reduce the insertion and extraction force.

[0061] The transition area 102 is provided with a notch structure and a plane, which, when combined with the relevant structure of the steel shell 2, can fix the relative positions of the two parts.

[0062] The steel shell 2 has outward-facing spring-loaded structures 14 on both sides, which can prevent it from coming off after engaging with the connector shell.

[0063] Two long, strong support protrusions 15 are provided on one side of the steel shell 2. These structures can support the mating surface of the pin to prevent insufficient interference of the contact in the elastic area 101, specifically for asymmetrical types.

[0064] The inward bending of the steel shell at the 2nd opening can guide the smooth mating of the pin and the socket structure, and prevent the pin from shifting or tilting, ensuring the stability of the relative position of the pin and the socket.

[0065] The steel shell 2 has an opening structure on its side for the implementation of the connector CPA, specifically a symmetrical 180° scheme.

[0066] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A low cost, blade contact jack structure, characterized by: The conductive body (1) includes a conductive body (1) and a steel shell (2). The conductive body (1) includes an elastic region (101) and a termination region (103) with increasing thickness. A transition region (102) with thickness transition is provided between the elastic region (101) and the termination region (103). An elastic contact cantilever is provided on the elastic region (101). The steel shell (2) is provided on the transition region (102) and cooperates with the elastic contact cantilever on the elastic region (101).

2. The low cost chip contact jack structure of claim 1, wherein: The elastic contact cantilever includes several adjacent spring claws 1 (3) and spring claw 2 (4). Both spring claw 1 (3) and spring claw 2 (4) have an arc-shaped contact part (6) in the middle. One end of the arc-shaped contact part (6) has a smooth transition part (5), and the other end of the arc-shaped contact part (6) is a connecting rod part (7). The connecting rod part (7) is connected to the elastic area (101). There is a gap between the connecting rod part (7) of spring claw 1 (3) and the connecting rod part (7) of the adjacent spring claw 2 (4).

3. The low cost chip contact jack structure of claim 1 or 2, wherein: The transition area (102) and the termination area (103) are two-layer copper-aluminum composite plate structures, three-layer copper-aluminum composite plate structures, copper plate structures, or copper-aluminum side composite plate structures.

4. The low-cost plate contact socket structure according to claim 1 or 2, characterized in that: The transition area (102) is provided with at least one groove (8) that mates with the steel shell (2).

5. The low-cost plate-type contact socket structure according to claim 4, characterized in that: The elastic region (101) forms a 180° plate structure or a 90° plate structure with the termination region (103) through the transition region (102).

6. The low-cost plate contact socket structure according to claim 2 or 5, characterized in that: The conductive body (1) is a double-layer plate bent inward in the middle, and the upper part of the double-layer plate is provided with symmetrically arranged riveting grooves (9).

7. The low-cost plate contact socket structure according to claim 6, characterized in that: The double-layer plate has a second groove (10) in the middle, which is located between two sets of riveting grooves (9).

8. The low-cost plate contact socket structure according to claim 5 or 7, characterized in that: The steel shell (2) is provided with a spring (11) for providing positive pressure to the arc-shaped contact part (6), and the two sides of the steel shell (2) are also provided with limiting members (12) corresponding to the groove (8).

9. The low-cost plate-type contact socket structure according to claim 8, characterized in that: The steel shell (2) has an arc-shaped bend (13) at the end opening for guiding the insertion pin, and the steel shell (2) also has an outwardly extending spring structure (14).

10. The low-cost plate contact socket structure according to claim 1, 2, 5, 7, or 9, characterized in that: The steel shell (2) is provided with a protruding structure (15) for supporting the mating surface of the insert pin.

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