Connector

Abstract

The device comprises a shell, wherein a circuit board is arranged in the shell; one side edge of the circuit board is adjacent to the inner wall of the shell, the shell is provided with a contact elastic piece extending and protruding towards the circuit board, the circuit board is provided with a concave contact area corresponding to the contact elastic piece in a matched mode, and the contact elastic piece is clamped in the concave contact area; the contact elastic sheet comprises a bending extension part which is bent on the shell surface of the shell, and a half-wrapped contact which is arranged at one end, far away from the shell, of the bending extension part; the recessed contact area comprises a groove, and the half-wrapped contact is clamped in the groove and abuts against the inner wall of the groove. According to the utility model, the contact head of the contact spring sheet is semi-enclosed, the circuit board is provided with the corresponding recessed contact area, the contact spring sheet shrinks inwards and is extruded into the recessed contact area during assembly, the elasticity of the contact spring sheet is released after assembly, the contact spring sheet is in reliable contact with the recessed contact area, and the contact reliability and stability of the housing and the circuit board are increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of connectors, and in particular relates to a spring-type grounding structure of a connector. Background Art

[0002] Connectors are mainly installed on computer peripherals, servers, routers, switching equipment and other products. They are used for transmitting data and connecting peripherals, and are widely used in network, communication, automation control and other fields.

[0003] As electronic products become more and more functional, the requirements for product structure increase. In the grounding design of the iron shell, the iron shell needs to be welded to the grounding point of the circuit board. The fusion welding structure requires the development of a fusion welding process, which affects the stability of the connector during connection and increases the manpower for welding. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provide a spring-type grounding structure of a connector. An elastic grounding point is designed in the side wall of the contact area of ​​the circuit board, which does not require welding, saves manpower and has a reliable design.

[0005] In order to solve the existing technical problems, the utility model adopts the following technical solutions:

[0006] A connector, comprising a housing, a circuit board is arranged inside the housing; one side of the circuit board is arranged close to the inner wall of the housing, the housing is provided with a contact spring extending and protruding toward the circuit board, a recessed contact area corresponding to the contact spring is provided on the circuit board, and the contact spring is clamped in the recessed contact area;

[0007] The contact spring comprises a bent extension portion bent on the shell surface of the housing, and a half-wrapped contact arranged at one end of the bent extension portion away from the housing;

[0008] The recessed contact area comprises a groove, and the half-wrapped contact is clamped in the groove and pressed against the inner wall of the groove.

[0009] Furthermore, in one embodiment, two sides of the half-wrapped contact are pressed against the inner wall of the groove.

[0010] Furthermore, in one embodiment, a grounding portion is provided on the inner wall of the groove, and two sides of the half-wrapped contact are pressed against the grounding portion of the inner wall of the groove.

[0011] Further, in one embodiment, the half-package contact is shaped like a part of a circle, an ellipse, or a rhombus.

[0012] Furthermore, in one embodiment, two contact springs are arranged at a portion of the housing adjacent to the circuit board, the two contact springs are arranged at intervals in a direction parallel to the circuit board, and two recessed contact areas corresponding to the two contact springs are provided on the circuit board, and each recessed contact area includes a groove;

[0013] One end of the two bent extension parts away from the housing is respectively provided with a half-wrapped contact; the two half-wrapped contacts are respectively clamped in the two grooves.

[0014] Furthermore, in one embodiment, a bayonet is formed between the two bent extensions, a partition is provided between the two grooves, the two grooves are separated by the partition, and the partition is inserted into the bayonet.

[0015] Further, in one embodiment, the two half-package contacts are arranged in mirror symmetry.

[0016] Furthermore, in one embodiment, the two half-enclosed contacts are arranged away from each other; and the half-enclosed contacts are in an arc shape larger than a semicircle.

[0017] Furthermore, in one embodiment, a first spacing D3 between the two bent extensions near one end of the shell is greater than a second spacing D2 between the two bent extensions near one end of the half-enclosed contact, a width D5 of the partition is greater than a spacing of the second spacing D2, the partition is at least partially inserted in the second spacing D2 between the two bent extensions, the widest spacing D1 of the half-enclosed contacts is greater than a width D6 of the groove, and both sides of the widest spacing of the half-enclosed contacts are pressed against the inner wall of the groove.

[0018] Furthermore, in one embodiment, the grounding portion is formed by stacking and coating a copper layer and a gold layer on a circuit board, and the contact spring and the housing are integrally formed by stamping and bending metal sheets.

[0019] The utility model is suitable for connectors such as RJ and IO. The contact head of the contact spring is a half-enclosed type (such as a circular, elliptical, diamond-shaped and other half-enclosed structure). A corresponding recessed contact area is provided on the circuit board. During assembly, the contact spring is retracted and squeezed into the recessed contact area. After assembly, the elasticity of the contact spring is released and reliably contacts the recessed contact area, thereby increasing the contact reliability and stability between the housing and the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the shell part of the embodiment of the present application;

[0021] Figure 2 It is a schematic diagram of the assembly of the recessed contact area of ​​the embodiment of the present application;

[0022] Figure 3 for Figure 1 The exploded structure diagram of part A (contact spring part).

[0023] Reference numerals:

[0024] The housing 22 , the circuit board 31 , the recessed contact area 32 , the groove 35 , the grounding portion 36 , the partition portion 37 , the contact spring 41 , the connecting portion 42 , the bent extension portion 43 , and the half-wrapped contact 44 . DETAILED DESCRIPTION

[0025] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] See attached Figure 1 As shown, attached Figure 1 The overall structure of the present application is shown in FIG. 2 . The present application includes a connector. The connector includes a circuit board 31 . The circuit board 31 is arranged in a housing 22 .

[0027] One side of the circuit board 31 is arranged adjacent to the inner wall of the housing 22. Figure 2 As shown, attached Figure 2 The structure of the contact spring 41 on the shell 22 is shown in the figure. The portion of the shell 22 adjacent to the circuit board 31 is provided with a contact spring 41 extending and protruding toward the circuit board 31. The circuit board 31 is provided with a recessed contact area 32 matching the contact spring 41, and the contact spring 41 is stuck in the recessed contact area 32.

[0028] Further, in one embodiment, the contact spring 41 is disposed on the housing 22 and is formed integrally with the housing 22 by stamping and bending a metal sheet; the contact spring 41 includes a bent extension portion 43 bent on the shell surface of the housing 22, and a half-enclosed contact 44 is provided at one end of the bent extension portion 43 away from the housing 22. The half-enclosed contact 44 is in the shape of a circle, an ellipse, or a part of a rhombus.

[0029] Furthermore, the contact spring 41 includes two parts, namely a bent extension portion 43 and a half-wrapped contact 44 ; and two grounding points are designed in the side wall of the recessed contact area 32 of the circuit board 31 .

[0030] The recessed contact area 32 includes a groove 35, and a grounding portion 36 with copper and gold is provided on the inner wall of the groove 35. The half-enclosed contact 44 is clamped in the groove 35. The half-enclosed contact 44 is configured as a half-enclosed elastic structure. Further, the half-enclosed contact 44 is an arc shape larger than a semicircle. Figure 2 As shown, attached Figure 2 The figure shows the squeeze-in structure of the groove 35, where both sides of the half-wrapped contact 44 are pressed against the grounding portion 36 on the inner wall of the groove 35, and both sides of the half-wrapped contact 44 form two-point squeeze contact with the grounding portion 36. This structure can achieve at least two-point contact on a single spring sheet, increasing the contact reliability and stability between the housing and the circuit board.

[0031] Furthermore, two contact springs 41 are arranged at the position of the shell 22 adjacent to the circuit board 31. The two contact springs 41 are arranged at intervals along a direction parallel to the circuit board 31. Two recessed contact areas 32 matching the two contact springs 41 are opened on the circuit board 31. Each recessed contact area 32 includes a groove 35; two bent extensions 43 are respectively provided with half-enclosed contacts 44 at one end away from the shell 22; the two half-enclosed contacts 44 are respectively clamped in the two grooves 35.

[0032] Furthermore, in one embodiment, the two half-package contacts 44 are arranged in mirror symmetry.

[0033] Furthermore, a bayonet is formed between the two bent extensions 43 , a partition 37 is provided between the two grooves 35 , the two grooves 35 are separated by the partition 37 , and the partition 37 is inserted into the bayonet.

[0034] Further, in one embodiment, a group of opposite bent extensions 43 are provided on the contact spring 41, and a connecting portion 42 is provided between the roots of two opposite bent extensions 43, and the connecting portion 42 is provided on the housing 22; the two ends of the two bent extensions 43 away from the connecting portion 42 gradually approach each other, and the angle between the bent extension 43 and the connecting portion 42 is an acute angle; the two bent extensions 43 and the connecting portion 42 are arranged in a trapezoidal shape, and the spacing between the ends of the two bent extensions 43 away from the connecting portion 42 is the second spacing D2, that is, the spacing between the ends of the two bent extensions 43 close to the half-enclosed contact 44 is the second spacing D2. The end of the bent extension 43 away from the connecting portion 42 is provided with a half-enclosed contact 44 protruding outward, in other words, the half-enclosed contact 44 is provided on the side of the bent extension 43 away from the connecting portion 42, and the half-enclosed contacts 44 on both sides are arranged back to back, and the half-enclosed contacts 44 on both sides are arranged away from each other, that is, the two half-enclosed contacts 44 are arranged in a mirror-symmetrical manner.

[0035] Further, in one embodiment, see the attached Figure 3 As shown, attached Figure 3 The double-grooved structure of the recessed contact area 32 is shown in the figure. Two grooves 35 matching the two bent extensions 43 are provided on the recessed contact area 32. A partition 37 is provided between the two grooves 35. The two grooves 35 are separated by the partition 37. At this time, the recessed contact area 32 is M-shaped, and the partition 37 is at least partially inserted in the second spacing D2 between the two bent extensions 43.

[0036] Further, in one embodiment, the first spacing D3 of the two bent extensions 43 near one end of the connection portion 42 (housing 22) is greater than the second spacing D2, the width D5 of the partition 37 is greater than the spacing of the second spacing D2, the width D5 of the partition 37 is less than the first spacing D3 at the root of the two bent extensions 43, and the widest spacing D1 of the half-enclosed contact 44 is greater than the width D6 of the groove 35; in other words, the diameter D1 of the half-enclosed contact 44 is greater than the width D6 of the groove 35. The left and right sides of the half-enclosed contact 44 (single spring contact) contact the grounding portion 36 without welding, and the contact is double-point; the side contact area of ​​the grounding portion 36 is copper-plated with gold, which increases the contact reliability and stability between the housing 22 and the circuit board 31.

[0037] The present application provides a recessed contact area 32 on the circuit board 31. During assembly, the contact spring 41 is retracted and squeezed into the recessed contact area 32. After assembly, the elasticity of the contact spring 41 is released, and the contact spring 41 forms a reliable contact with the recessed contact area 32. This structure can achieve at least two points of contact on a single spring, that is, there are two single spring contact points between the circuit board 31 and the shell 22.

[0038] In the description of this specification, the terms "connect", "install", "fixed", "set", "having", "front", "on", etc. are all understood in a broad sense. For example, "connection" can be a fixed connection or an indirect connection through an intermediate component without affecting the relationship between components and the technical effect. It can also be an integral connection or a partial connection. As in this example, for ordinary technicians in this field, the specific meanings of the above terms in this utility model or utility model can be understood according to the specific circumstances.

[0039] The above description of the embodiments is to facilitate those skilled in the art to understand and apply the technology of the present invention. It is obvious that those skilled in the art can easily make various modifications to these examples and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments.

Claims

1. A connector, comprising: A shell (22), wherein a circuit board (31) is arranged inside the shell (22); characterized in that one side of the circuit board (31) is arranged in close proximity to an inner wall of the shell (22), the shell (22) is provided with a contact spring (41) extending and protruding toward the circuit board (31), the circuit board (31) is provided with a recessed contact area (32) matching and corresponding to the contact spring (41), and the contact spring (41) is clamped in the recessed contact area (32); The contact spring (41) comprises a bent extension portion (43) bent on the shell surface of the shell (22), and a half-wrapped contact (44) arranged at one end of the bent extension portion (43) away from the shell (22); The recessed contact area (32) comprises a groove (35), and the half-enclosed contact (44) is clamped in the groove (35) and pressed against the inner wall of the groove (35).

2. A connector according to claim 1, characterized in that: Both sides of the half-wrapped contact (44) are pressed against the inner wall of the groove (35).

3. A connector according to claim 2, characterized in that: A grounding portion (36) is provided on the inner wall of the groove (35), and two sides of the half-wrapped contact (44) are pressed against the grounding portion (36) on the inner wall of the groove (35).

4. A connector according to claim 2, characterized in that: The half-wrapped contact (44) is in the shape of a circle, an ellipse, or a part of a rhombus.

5. A connector according to claim 2, characterized in that: Two contact springs (41) are arranged at a portion of the housing (22) adjacent to the circuit board (31); the two contact springs (41) are arranged at intervals in a direction parallel to the circuit board (31); the circuit board (31) is provided with two recessed contact areas (32) matching and corresponding to the two contact springs (41); each recessed contact area (32) includes a groove (35); The two bent extension portions (43) are respectively provided with the half-enclosed contacts (44) at one end away from the housing (22); the two half-enclosed contacts (44) are respectively clamped in the two grooves (35).

6. A connector according to claim 5, characterized in that: A bayonet is formed between the two bent extensions (43), a partition (37) is provided between the two grooves (35), the two grooves (35) are separated by the partition (37), and the partition (37) is inserted into the bayonet.

7. A connector according to claim 6, characterized in that: The two half-enclosed contacts (44) are arranged in mirror-image symmetry.

8. A connector according to claim 7, characterized in that: The two half-enclosed contacts (44) are arranged to be separated from each other; the half-enclosed contacts (44) are in an arc shape larger than a semicircle.

9. A connector according to claim 8, characterized in that: A first spacing (D3) between the two bent extensions (43) close to one end of the housing (22) is greater than a second spacing (D2) between the two bent extensions (43) close to one end of the half-enclosed contact (44); a width (D5) of the partition (37) is greater than the spacing of the second spacing (D2); the partition (37) is at least partially inserted in the second spacing (D2) between the two bent extensions (43); a widest spacing (D1) of the half-enclosed contact (44) is greater than a width (D6) of the groove (35); and two sides of the widest spacing of the half-enclosed contact (44) are pressed against the inner wall of the groove (35).

10. A connector according to claim 3, characterized in that: The grounding portion (36) is formed by stacking a copper layer and a gold layer on the circuit board (31), and the contact spring (41) and the housing (22) are integrally formed by stamping and bending metal sheets.

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