Contact element

Abstract

The utility model discloses a contact element, which relates to the technical field of contact elements, and comprises a contact element main body and a lug plate, the contact element main body is provided with a mounting hole for a terminal to insert, the side wall of the contact element main body is provided with an elastic limiting element, and the elastic limiting element is positioned on the side wall of the mounting hole. The elastic limiting piece is used for fixing the terminal in the mounting hole, the contact piece main body is connected with the lug plate, and the lug plate is provided with a wiring port for connecting a cable; according to the utility model, the elastic contact spring claw and the contact element main body are integrally formed to realize electric contact, the contact element has the effects of low contact resistance and strong conductivity, the contact element is simple in structure, the use cost of parts is low, and the process difficulty and the use cost are effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of contact parts, in particular to a contact part. Background Art

[0002] A contact part refers to a conductive part in an element that cooperates with a corresponding conductive part to provide an electrical path.

[0003] In the related art, a right-angle contact part includes a wiring part and a crown spring sleeve. The crown spring sleeve is vertically arranged at one end of the wiring part, and a crown spring piece is embedded in the crown spring sleeve. During installation, a fuse is inserted into the crown spring sleeve, and the crown spring piece is used to contact and transmit current. Then, a cable is connected to the other end of the wiring part, so as to realize right-angle wiring of the terminal.

[0004] In the above-mentioned prior art, it is necessary to embed a crown spring in the crown spring sleeve, with complex parts and processes. Moreover, the secondary contact between the embedded crown spring and the crown spring sleeve results in a high contact resistance and weak conductivity. Content of the Utility Model

[0005] The utility model provides a contact part to achieve the effects of enhancing conductivity and reducing the use cost.

[0006] The utility model specifically adopts the following technical solutions:

[0007] A contact part includes a contact part main body and a wiring piece. An installation hole for inserting a terminal is provided on the contact part main body. An elastic limiting part is provided on the side wall of the contact part main body. The elastic limiting part is located on the side wall of the installation hole and is used to fix the terminal in the installation hole. The contact part main body is connected to the wiring piece, and a wiring port for connecting a cable is provided on the wiring piece.

[0008] Optionally, the elastic limiting part includes a plurality of contact spring claws. A plurality of limiting holes are arranged on the side wall of the contact part main body in a circumferential array along its own circumference. The contact spring claws are connected to the hole wall of the limiting holes. A clamping space for tightly pressing the terminal is formed between the opposite side walls of the plurality of contact spring claws, and the opposite side walls of the plurality of contact spring claws are all used to abut against the side wall of the terminal.

[0009] Optionally, the contact spring claw includes a joint part, an abutting part, and a bending part connected in sequence. One end of the joint part far from the abutting part is connected to the hole wall of the limiting hole. One end of the abutting part far from the joint part extends into the installation hole. The abutting part is used to abut against the side wall of the terminal, and the free end of the bending part faces the outer ring wall of the contact part main body.

[0010] Optionally, at least two convex points are provided on the inner ring wall of the contact part main body and between adjacent two limiting holes, and the two convex points are arranged oppositely along the axial direction of the contact part main body.

[0011] Optionally, the cable connection direction of the terminal is perpendicular or parallel to the axial direction of the contact body.

[0012] Optionally, the contact body is provided with two free ends, the two free ends of the contact body are connected, the contact body is arranged in a circular ring shape, and the mounting hole is formed on the inner ring wall of the contact body.

[0013] Optionally, when the cable connection direction of the terminal is perpendicular to the axis of the contact body, fixing pieces are provided on the side walls of the two free ends of the contact body, two opposite rivets are provided on one of the fixing pieces, and riveting through holes corresponding to the rivets are provided on the other fixing piece, and the two fixing pieces are connected by riveting with the rivets.

[0014] Optionally, the terminal is connected to one of the fixing pieces, and the cable connection direction of the terminal is the same as the radial direction of the contact body.

[0015] Optionally, two legs are provided on one side end wall of the contact body and are opposite to each other along the radial direction of the contact body, relief openings are provided on the side wall of the contact body and on both sides of the legs, the legs are bent and formed outward from the bottom wall of the contact body, and the included angle between the legs and the outer side wall of the contact body is 90°.

[0016] Optionally, the contact body, the fixing piece, the terminal and the elastic limiting member are all integrally formed by stamping a metal sheet.

[0017] Optionally, when the cable connection direction of the terminal is parallel to the axis of the contact body, the side walls of the two free ends of the contact body are arranged opposite to each other and are in concave-convex fit, and the two free ends of the contact body are fixedly connected.

[0018] Optionally, the terminal is arranged on one side end wall of the contact body, and the cable connection direction of the terminal is the same as the axial direction of the contact body.

[0019] Optionally, a positioning plate is formed by bending the side wall of the contact body where the terminal is located, the included angle between the positioning plate and the outer side wall of the contact body is 90°, and notches are provided on the side wall of the contact body and on both sides of the positioning plate.

[0020] Optionally, the terminal includes a connecting portion and a wiring portion, the connecting portion is connected to the side wall of the contact body, the wiring portion faces away from the side wall of the contact body, and the wiring opening is formed on the side wall of the wiring portion

[0021] Optionally, a plurality of anti-slip grooves are arranged at equal intervals along the cable connection direction on the side wall of the wiring portion where the wiring opening is located.

[0022] The contact provided by the utility model has the following beneficial effects:

[0023] 1. The contact body directly realizes electrical contact by using a stamping contact spring claw structure. The elastic contact spring claw is integrally formed with the contact body, having low contact resistance, strong conductivity, and cost savings.

[0024] 2. Electrical contact is achieved by using contact spring claws, with a simple structure, fewer parts used, effectively reducing the process difficulty and usage cost.

[0025] 3. The wiring method of this solution is diversified. According to different wiring requirements of customers, different shapes can be stamped at the tail of the contact body to achieve right-angle wiring or horizontal wiring of the terminal.

[0026] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present invention, nor is it used to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0028] Figure 1 It is the overall schematic diagram of the contact part shown in the first embodiment of this application;

[0029] Figure 2 It is the specific structural schematic diagram of the elastic limiting part shown in the first embodiment of this application;

[0030] Figure 3 It is the schematic diagram showing the positional relationship between the wiring piece and the contact body shown in the second embodiment of this application.

[0031] Figure 4 It is the specific structural schematic diagram of the wiring piece shown in the third embodiment of this application.

[0032] Reference numerals: 1, contact body; 101, limiting hole; 102, bump; 2, elastic limiting part; 21, joint part; 22, abutting part; 23, bending part; 3, wiring piece; 31, connecting part; 32, wiring part; 33, anti-slip groove; 4, wiring port; 5, fixing part; 51, fixing piece; 52, rivet; 53, riveting through hole; 6, leg; 7, relief opening; 8, dovetail block; 9, dovetail groove; 10, positioning plate; 11, notch. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] To enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0034] It should be noted that the terms "first", "second", etc. in the description and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0035] Embodiment 1

[0036] Referring to Figure 1 - Figure 2 , this embodiment provides a contact. The contact includes a contact body 1, which is formed by stamping a metal sheet. In this embodiment, the material of the contact body 1 is preferably a copper alloy. The contact body 1 includes two free ends. After connecting the two free ends of the contact body 1, the contact body 1 encloses to form a circular ring. An installation hole is formed on the inner ring wall of the contact body 1 for inserting a terminal, and the axial direction of the terminal is the same as the axial direction of the contact body 1. In order to stably fix the terminal in the installation hole, an elastic limiting member 2 for fixing the terminal is provided on the inner ring wall of the contact body 1.

[0037] A wiring piece 3 is provided on the side wall of the contact body 1, and a wiring port 4 is provided on the wiring piece 3. The cable is placed into the wiring port 4, and then the wiring piece 3 is stamped so that the cable is fixed in the wiring piece 3, thereby realizing terminal wiring.

[0038] Referring to Figure 2, the elastic limiting member 2 includes a plurality of contact claws. A plurality of limiting holes 101 are arranged on the side wall of the contact member main body 1 and are arrayed along its circumferential direction. The contact claws are arranged in the limiting holes 101. The contact claw includes a joint portion 21, an abutting portion 22 and a bending portion 23 which are connected in sequence. One end of the joint portion 21 far from the abutting portion 22 is connected to the hole wall of the limiting hole 101. The abutting portion 22 is used to abut against the side wall of the terminal. The free end of the bending portion 23 faces the outer ring wall of the contact member main body 1. For the contact claw formed by the joint portion 21, the abutting portion 22 and the bending portion 23, by arranging the bending portion 23 to extend away from the mounting hole, it helps to quickly insert the terminal into the mounting hole. And a clamping space for tightly holding the terminal is formed between the opposite side walls of the plurality of contact claws. After the terminal is inserted into the mounting hole, the abutting portions 22 of the plurality of contact claws all abut against the side wall of the terminal, so that the terminal can be stably fixed in the mounting hole.

[0039] Referring to Figure 2 , at least two bumps 102 are provided on the inner ring wall of the contact member main body 1 and between two adjacent limiting holes 101. The two bumps 102 are arranged oppositely along the axial direction of the contact member main body 1. The setting of the bumps 102 helps to enhance the seismic resistance of the terminal, and further strengthens the stability of the terminal fixed in the contact member main body 1.

[0040] Referring to Figure 2 , the wiring piece 3 includes a connecting portion 31 and a wiring portion 32. The connecting portion 31 is connected to the side wall of the contact member main body 1. A wiring port 4 is formed on the side wall of the wiring portion 32. In this embodiment, the wiring portion 32 can be set as a U-shaped piece, and the wiring port 4 is formed in the U-shaped space of the U-shaped piece. The cable is placed in the U-shaped piece, and the side walls of the two free ends of the U-shaped piece are stamped, so as to realize the clamping and fixing of the cable through the U-shaped piece.

[0041] In this embodiment, the wiring portion 32 is preferably a U-shaped piece. In order to further improve the stability of the cable fixing, a plurality of anti-slip grooves 33 are provided on the inner side wall of the U-shaped piece. The setting of the anti-slip grooves 33 helps to increase the friction between the cable and the side wall of the U-shaped piece and prevent the cable from slipping in the U-shaped piece.

[0042] Referring to Figure 2 , it should be noted that in this embodiment, the cable wiring direction of the wiring piece 3 is perpendicular to the axial direction of the contact member main body 1, and right-angle wiring of the terminal can be realized.

[0043] Specifically, the two free ends of the contact body 1 are connected by a fixing member 5, and the fixing member 5 includes two fixing plates 51, one of which is provided with two opposite rivets 52, and the other fixing plate 51 is provided with two opposite riveted through holes 53, and the two rivets 52 correspond to the two riveted through holes 53 one by one; in the production process of the contact body 1, the two fixing plates 51 are aligned and stamped so that the rivets 52 are inserted into the riveted through holes 53. At this time, the two fixing plates 51 are riveted connected by the rivets 52, and finally a fixed connection between the two free ends of the contact body 1 is achieved.

[0044] It should be noted that the two fixing plates 51 may also be fixed by welding.

[0045] The connecting piece 3 is connected to one of the fixing pieces 51, and the cable connection direction of the connecting piece 3 is in the same direction as the radial direction of the contact body 1. When in use, the contact body 1 is placed vertically so that the terminal can be vertically inserted into the contact body 1, and then the connecting piece 3 is used to connect the cable, thereby realizing the right-angle connection of the terminal.

[0046] Reference Figure 2 Since the contact body 1 in this embodiment is arranged in a circular ring shape, in order to stably and vertically place the contact body in the connector housing, the bottom wall of the contact body 1 is provided with two legs 6, and the legs 6 are bent from the bottom wall of the contact body 1 toward the outer ring wall of the contact body 1. The length direction of the legs 6 is in the same direction as the radial direction of the contact body 1. The two legs 6 are arranged opposite to each other along the radial direction of the contact body 1. The bottom wall of the contact body 1 and the two sides of the legs 6 are provided with clearance openings 7. The setting of the clearance openings 7 facilitates the bending of the legs 6.

[0047] The contact body 1, the fixing plate 51, the connecting piece 3, the contact spring claw, and the supporting leg 6 in this embodiment are all made of copper alloy sheets by integral stamping. The contact piece formed by the above structure can realize right-angle connection of the terminal, has a simple structure, uses fewer parts, and effectively reduces the process difficulty and use cost. In addition, the contact body 1 directly uses the stamped contact spring claw structure to achieve electrical contact, and the elastic contact spring claw is integrally formed with the contact body 1, with low contact resistance, strong conductivity, and cost saving.

[0048] Embodiment 2

[0049] The difference between this embodiment and the first embodiment lies in the connection mode of the two free ends of the contact body 1 and the connection position relationship between the terminal piece 3 and the contact body 1 .

[0050] Reference Figure 3, several dovetail blocks 8 are provided at one free end of the contact body 1, and several dovetail grooves 9 are provided at the other free end. The side walls of the two free ends of the contact body 1 are connected in a concave-convex fit manner to weld and fixedly connect the two free ends of the contact body 1.

[0051] In this embodiment, the terminal block 3 is arranged on one side wall of the contact body 1, and the cable wiring direction of the terminal block 3 is the same as the axial direction of the contact body 1; when wiring, the contact body 1 can be placed horizontally, then the terminal is horizontally inserted into the contact body 1, and then the cable is connected to the terminal block 3, finally realizing the horizontal wiring of the terminal.

[0052] In this embodiment, since the contact body 1 is arranged in a circular ring shape, and when wiring horizontally, the contact body 1 is prone to rotation when placed horizontally, which affects the safety of wiring. A positioning plate 10 is integrally formed on the side wall of the contact body 1 where the terminal block 3 is located. Notches 11 are provided on both sides of the side wall of the contact body 1 and located on both sides of the positioning plate 10. The provision of the notches 11 facilitates bending the positioning plate 10 so that the included angle between the positioning plate 10 and the outer side wall of the contact body 1 is 90°. A positioning groove (not shown in the figure) is reserved on the housing that cooperates with the contact body 1, and the positioning groove is used for the positioning plate 10 to be inserted, thereby playing a role in positioning the position of the contact body 1 and helping to prevent the contact body 1 from rotating.

[0053] Embodiment Three

[0054] The difference between this embodiment and Embodiment One is that the shape of the terminal block 3 is different. The terminal block 3 in this embodiment is set as a horizontal piece. At this time, the wiring port 4 is formed on the side wall surface of the horizontal piece of the wiring part 32, and then the cable can be welded and fixedly connected to the horizontal piece of the wiring part 32.

[0055] Note that the above is only the preferred embodiment of the present invention and the technical principles applied. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described here. Various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments. Without departing from the concept of the present invention, more other equivalent embodiments can be included, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A contact member, characterized in that, The invention comprises a contact body (1) and a wiring piece (3), wherein the contact body (1) is provided with a mounting hole for inserting a terminal, and the side wall of the contact body (1) is provided with an elastic stopper (2), wherein the elastic stopper (2) is located on the side wall of the mounting hole, and the elastic stopper (2) is used to fix the terminal in the mounting hole, and the contact body (1) is connected to the wiring piece (3), and the wiring piece (3) is provided with a wiring port (4) for connecting a cable.

2. The contact according to claim 1, characterized in that, The elastic limiting member (2) comprises a plurality of contact spring claws, the side wall of the contact member body (1) is provided with a plurality of limiting holes (101) in an array along its own circumference, the contact spring claws are connected to the hole wall of the limiting hole (101), a clamping space for abutting against the terminal is formed between the opposite side walls of the plurality of contact spring claws, and the opposite side walls of the plurality of contact spring claws are used to abut against the side walls of the terminal.

3. The contact according to claim 2, characterized in that, The contact spring claw comprises a joining portion (21), an abutting portion (22) and a bending portion (23) which are connected in sequence; one end of the joining portion (21) away from the abutting portion (22) is connected to the hole wall of the limiting hole (101); one end of the abutting portion (22) away from the joining portion (21) extends into the mounting hole; the abutting portion (22) is used to abut against the side wall of the terminal; and the free end of the bending portion (23) faces the outer ring wall of the contact member body (1).

4. The contact according to claim 3, characterized in that, At least two protrusions (102) are provided on the inner annular wall of the contact body (1) and are located between two adjacent limiting holes (101), and the two protrusions (102) are arranged opposite to each other along the axial direction of the contact body (1).

5. The contact according to claim 1, wherein The cable connection direction of the wiring piece (3) is perpendicular or parallel to the axial direction of the contact body (1).

6. The contact according to claim 1 or 5, characterized in that, The contact body (1) is provided with two free ends, the two free ends of the contact body (1) are connected, the contact body (1) is arranged in a circular ring shape, and the mounting hole is formed on the inner ring wall of the contact body (1).

7. The contact according to claim 6, wherein When the cable connection direction of the wiring piece (3) is perpendicular to the axial direction of the contact body (1), the two free end side walls of the contact body (1) are each provided with a fixing piece (51), one of the fixing pieces (51) is provided with two opposite rivets (52), and the other fixing piece (51) is provided with a riveting through hole (53) corresponding to the rivet (52), and the two fixing pieces (51) are riveted to each other via the rivets (52).

8. The contact according to claim 7, wherein The wiring piece (3) is connected to one of the fixing pieces (51), and the cable connection direction of the wiring piece (3) is in the same direction as the radial direction of the contact body (1).

9. The contact according to claim 7, characterized in that, The end wall of one side of the contact body (1) is provided with two legs (6) which are opposite to each other along its radial direction. The side wall of the contact body (1) is provided with clearance openings (7) on both sides of the legs (6). The legs (6) are bent outwards from the bottom wall of the contact body (1), and the angle between the legs (6) and the outer side wall of the contact body (1) is 90°.

10. The contact according to claim 7, wherein The contact piece body (1), the fixing piece (51), the wiring piece (3) and the elastic limiting piece (2) are all integrally formed by stamping metal sheets.

11. The contact according to claim 6, characterized in that, When the cable connection direction of the terminal piece (3) is parallel to the axial direction of the contact body (1), the side walls of the two free ends of the contact body (1) are arranged opposite to each other and are in concave-convex fit, and the two free ends of the contact body (1) are fixedly connected.

12. The contact according to claim 11, characterized in that, The terminal piece (3) is arranged on one side wall of the contact body (1), and the cable connection direction of the terminal piece (3) is the same as the axial direction of the contact body (1).

13. The contact according to claim 12, characterized in that, A positioning plate (10) is formed by bending the side wall of the contact body (1) where the terminal piece (3) is located. The included angle between the positioning plate (10) and the outer side wall of the contact body (1) is 90°, and notches (11) are provided on the side wall of the contact body (1) and on both sides of the positioning plate (10).

14. The contact according to claim 1, characterized in that, The terminal piece (3) includes a connecting portion (31) and a wiring portion (32). The connecting portion (31) is connected to the side wall of the contact body (1), and the wiring portion (32) is connected to the side wall of the connecting portion (31) facing away from the contact body (1). The wiring port (4) is formed on the side wall of the wiring portion (32).

15. The contact according to claim 14, wherein A plurality of anti-slip grooves (33) are arranged at equal intervals along the cable connection direction on the side wall of the wiring portion (32) where the wiring port (4) is located.

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