A conductive leaf spring with high conductivity, a female connector and a connector assembly

Abstract

The utility model provides a conductive leaf spring with high conductivity, a female connector and a connector assembly, including two groups of spring components, a connecting ring and two end rings, the spring component is arranged between an end ring and the connecting ring, the spring component includes a plurality of springs, and the plurality of springs are distributed circumferentially around the insertion direction, the spring includes a substrate, an inner contact portion, an outer contact portion and two torsion portions, the two torsion portions are respectively located at the two ends of the substrate based on the insertion direction, the torsion portion on one side is connected between the substrate and the end ring, and the torsion portion on the other side is connected between the substrate and the connecting ring, the substrate is inclined to the radial direction of the insertion hole, the inner contact portion and the outer contact portion are located on the substrate and on both sides of the torsion portion, the inner contact portion is located inside the insertion hole, and the outer contact portion is located outside the insertion hole. This case can improve the effective contact area, improve the conductivity efficiency, and also improve the heat distribution and avoid heat concentration.

Description

Technical Field

[0001] The utility model relates to the field of electrical connection equipment, in particular to a conductive leaf spring with high conductivity, a female socket connector and a connector assembly. Background Art

[0002] In the field of electrical connection, as a circular pin connecting a socket, the pin often does not make direct hard contact with the inner hole of the socket, but a contact piece is installed in the inner hole of the socket. The contact piece is an elastic structure. When plugged in, the pin presses the contact piece to generate a permanent contact force between the pin and the inner hole wall of the socket, thereby ensuring the durability and reliability of the electrical connection between the pin and the socket.

[0003] Among the contacts, there is a type of leaf spring, which is widely used in jack connectors due to its low resistance, high reliability and low cost. The jack using leaf spring as the contact is called leaf spring jack, that is, leaf spring jack connector. The leaf spring is formed by stamping a metal flat plate in one piece, and its appearance is a round cage-like cylindrical body.

[0004] The leaf spring contact should provide elastic properties in terms of mechanical properties to provide lasting contact pressure with the pin. In terms of electrical properties, the leaf spring contact itself should complete the electrical conduction function.

[0005] With the development of the new energy industry, connectors need to adapt to large current applications, mainly tens of amperes to hundreds of amperes. In addition to using contact materials with higher conductivity, it is also necessary to optimize the contact structure to improve conductivity. Utility Model Content

[0006] The first object of the utility model is to provide a conductive leaf spring with high conductivity.

[0007] The second object of the utility model is to provide a female connector having the above-mentioned conductive leaf spring.

[0008] The third object of the present utility model is to provide a connector assembly having the above-mentioned female socket connector.

[0009] In order to achieve the first purpose of the utility model, the utility model provides a conductive leaf spring with high conductivity, including two groups of spring sheet assemblies, a connecting ring and two end rings; the connecting ring and the end rings are both extended in a ring shape and arranged along the insertion direction, based on the insertion direction, the connecting ring is located between the two end rings, and the connecting ring and the two end rings form an insertion hole; each group of spring sheet assemblies is arranged between an end ring and the connecting ring, each group of spring sheet assemblies includes multiple spring sheets, and the multiple spring sheets of each group are distributed circumferentially around the insertion direction; the spring sheets include a base sheet, an inner contact portion, an outer contact portion and two torsion portions, the two torsion portions are respectively located at the two ends of the base sheet based on the insertion direction, the torsion portion on one side is connected between the base sheet and the end rings, and the torsion portion on the other side is connected between the base sheet and the connecting ring, the base sheet is inclined to the radial direction of the insertion hole, the inner contact portion and the outer contact portion are located on the base sheet and on both sides of the torsion portion, the inner contact portion is located in the insertion hole, and the outer contact portion is located outside the insertion hole.

[0010] It can be seen from the above scheme that by arranging two groups of spring sheet assemblies along the insertion direction and cooperating with the connecting ring and the end ring for support and fixation, the effective contact area can be increased, the conductive efficiency can be improved, the heat distribution can be improved and heat concentration can be avoided, and the torsional elastic force provided by the torsional part is utilized so that the inner contact part is located in the insertion hole for connecting with the plug column, and the outer contact part is located outside the insertion hole for connecting with the inner wall of the conductive hole. The durability and reliability of the electrical connection are ensured by the cooperation of the internal and external contacts.

[0011] A further solution is that the inner contact portion is bent in an arc shape, and the inner contact portion is convexly raised along the insertion direction.

[0012] As can be seen from the above, the contact area can be further increased, the contact resistance can be reduced, and the conductive efficiency can be improved by bending the arc surface, and the convex protrusion can be used to facilitate insertion, fitting deformation, and contact conductive.

[0013] A further solution is that the spring sheet includes two external contact parts, the substrate is provided with a groove part between the two external contact parts, and the external contact part is arranged to protrude outwards based on the groove part.

[0014] A further solution is that the outer contact portion is bent in an arc shape.

[0015] It can be seen from the above that the contact area can be further increased, the contact resistance can be reduced, and the conductive efficiency can be improved by bending the arc surface. The external contact portion is arranged based on the outward convexity of the groove portion, and then the groove portion is arranged to match the convex protrusion to facilitate integrated stamping.

[0016] A further solution is that the connecting ring is provided with deformation grooves on both sides of the torsion portion.

[0017] It can be seen from the above that the deformation groove can make the torsion portion have better elastic force.

[0018] A further solution is that the end ring is provided with a plurality of guide bends on the axial outer edge, the plurality of guide bends are distributed along the circumferential direction, and the guide bends are bent toward the insertion hole.

[0019] As can be seen from the above, the guide bend can be used to guide the insertion of the plug post, so that the plug post can be guided to penetrate into the insertion hole at the center position along the lower edge.

[0020] In order to achieve the second purpose of the utility model, the utility model provides a female connector, including a conductive ring and a conductive leaf spring as described above, the conductive ring is provided with a conductive hole along the insertion direction, the conductive leaf spring is arranged in the conductive hole, and the external contact portion is adjacent to the inner wall of the conductive hole.

[0021] A further solution is that the female connector also includes a wire nose, and the head of the wire nose is connected to the conductive ring.

[0022] In order to achieve the third purpose of the utility model, the utility model provides a connector assembly, including a male connector and a female connector as described above, the male connector is provided with a conductive column, the male connector is connected to the female connector, the conductive column is inserted into the insertion hole, and the inner contact portion is adjacent to the outer wall of the conductive column.

[0023] It can be seen from the above scheme that by arranging two sets of spring clip assemblies along the insertion direction and cooperating with the connecting ring and the end ring for support and fixation, the effective contact area can be increased, the conductive efficiency can be improved, the heat distribution can be improved and heat concentration can be avoided. The external contact portion is located outside the insertion hole for connecting to the inner wall of the conductive hole. The durability and reliability of the electrical connection between the male connector and the female connector are ensured by the cooperation of the internal and external contacts. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of an embodiment of the connector assembly of the utility model.

[0025] Figure 2 It is an exploded view of an embodiment of the connector assembly of the utility model.

[0026] Figure 3 It is a partial exploded view of an embodiment of the connector assembly of the utility model.

[0027] Figure 4 It is a structural diagram of an embodiment of the conductive leaf spring of the utility model.

[0028] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0029] Figure 6 It is a cross-sectional view of an embodiment of the connector assembly of the utility model along the insertion direction.

[0030] Figure 7It is a radial cross-sectional view of an embodiment of the connector assembly of the utility model.

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0032] Reference Figures 1 to 7 The connector assembly includes a male connector 12 and a female connector 11. The female connector 11 includes a wire nose 112, a conductive ring 111 and a conductive leaf spring 2. The tail 114 of the wire nose 112 is provided with a wire clamp groove. The head 113 of the wire nose 112 is connected to the conductive ring 111. The conductive ring 111 is provided with a conductive hole 115 along the insertion direction X. The conductive leaf spring 2 is arranged in the conductive hole 115.

[0033] The conductive leaf spring 2 includes two groups of spring elements 22, a connecting ring 211 and two end rings 212. The connecting ring 211 and the end rings 212 are both extended in a ring shape and arranged along the insertion direction X. Based on the insertion direction X, the connecting ring 211 is located between the two end rings 212, and the connecting ring 211 and the two end rings 212 form an insertion hole 20.

[0034] Each group of spring sheet assemblies 22 is arranged between an end ring 212 and the connecting ring 211, and each group of spring sheet assemblies 22 includes a plurality of spring sheets 23. The plurality of spring sheets 23 in each group are distributed circumferentially around the insertion direction X. The spring sheets 23 include a base sheet 231, an inner contact portion 232, two outer contact portions 233 and two torsion portions 234. The two torsion portions 234 are respectively located at two ends of the base sheet 231 based on the insertion direction X. The torsion portion 234 on one side is connected between the base sheet 231 and the end ring 212, and the torsion portion 234 on the other side is connected between the base sheet 231 and the connecting ring 211. The base sheet 231 is inclined to the radial direction of the insertion hole 20, and two adjacent base sheets 231 are arranged at an acute angle. The inner contact portion 232 and the outer contact portion 233 are located on the base sheet 231 and on both sides of the torsion portion 234. The inner contact portion 232 is located inside the insertion hole 20, and the outer contact portion 233 is located outside the insertion hole 20.

[0035] The inner contact portion 232 is bent in an arc surface, and is convexly protruding along the insertion direction X. The base sheet 231 is provided with a groove portion 235 between the two outer contact portions 233. The outer contact portion 233 is arranged outwardly based on the groove portion 235, and is bent in an arc surface. The connecting ring 211 is provided with deformation grooves 213 on both sides of each torsion portion 234, and the end ring 212 is provided with deformation grooves 214 on both sides of each torsion portion 234. The end ring 212 is provided with a plurality of guide bends 215 on the axial outer edge, and the plurality of guide bends 215 are distributed along the circumferential direction, and the guide bends 215 are bent toward the insertion hole 20. The spring assembly 22 is formed by integral stamping.

[0036] The male connector 12 is provided with a conductive column 121. When the male connector 12 is connected to the female connector 11, the conductive column 121 is inserted into the insertion hole 20, and the outer contact portion 233 of each group of spring clip assemblies 22 is adjacent to the inner wall of the conductive hole 115, and the inner contact portion 232 of each group of spring clip assemblies 22 is adjacent to the outer wall 122 of the conductive column 121.

[0037] As can be seen from the above, by arranging two sets of spring clip assemblies along the insertion direction and cooperating with the connecting ring and the end ring for support and fixation, the effective contact area can be increased, the conductive efficiency can be improved, the heat distribution can be improved and heat concentration can be avoided. The external contact portion is located outside the insertion hole for connecting to the inner wall of the conductive hole. The durability and reliability of the electrical connection between the male connector and the female connector are ensured by the cooperation of the internal and external contacts.

Claims

1. A conductive leaf spring with high conductivity, characterized in that: It includes two sets of spring assembly, a connecting ring and two end rings; The connecting ring and the end rings are both extended in a ring shape and arranged along the insertion direction. Based on the insertion direction, the connecting ring is located between the two end rings, and the connecting ring and the two end rings form an insertion hole; Each group of the spring sheet assemblies is arranged between one of the end rings and the connecting ring, each group of the spring sheet assemblies comprises a plurality of spring sheets, and the plurality of spring sheets in each group are distributed circumferentially around the insertion direction; The spring piece includes a substrate, an inner contact portion, an outer contact portion and two torsion portions, the two torsion portions are respectively located at two ends of the substrate based on the insertion direction, the torsion portion on one side is connected between the substrate and the end ring, and the torsion portion on the other side is connected between the substrate and the connecting ring, the substrate is inclined to the radial direction of the insertion hole, the inner contact portion and the outer contact portion are located on the substrate and on both sides of the torsion portion, the inner contact portion is located in the insertion hole, and the outer contact portion is located outside the insertion hole.

2. The conductive leaf spring according to claim 1, characterized in that: The inner contact portion is bent in an arc shape, and is convex along the insertion direction.

3. The conductive leaf spring according to claim 2, characterized in that: The elastic sheet includes two external contact parts, the substrate is provided with a groove part between the two external contact parts, and the external contact part is arranged to protrude outwards based on the groove part.

4. The conductive leaf spring according to claim 3, characterized in that: The outer contact portion is bent in an arc shape.

5. The conductive leaf spring according to claim 1, characterized in that: The connecting ring is provided with deformation grooves on both sides of the torsion portion.

6. The conductive leaf spring according to any one of claims 1 to 5, characterized in that: The end ring is provided with a plurality of guide bends on the axial outer edge, the plurality of guide bends are distributed along the circumferential direction, and the guide bends are bent toward the insertion hole.

7. Female connector, characterized in that: It comprises a conductive ring and a conductive leaf spring as claimed in any one of claims 1 to 6, wherein the conductive ring is provided with a conductive hole along the insertion direction, the conductive leaf spring is arranged in the conductive hole, and the external contact portion is adjacent to the inner wall of the conductive hole.

8. The female connector according to claim 7, characterized in that: The female socket connector also includes a wire nose, and the head of the wire nose is connected to the conductive ring.

9. A connector assembly, characterized in that: It comprises a male connector and a female connector as described in claim 7 or 8, wherein the male connector is provided with a conductive column, the male connector is connected to the female connector, the conductive column is inserted into the insertion hole, and the inner contact portion is adjacent to the outer wall of the conductive column.

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