Contact member

Abstract

A contact member, comprising conductive sheets. Raised contact points capable of making contact with a mating plug connector are arranged in a contact area at the front end of each conductive sheet, and a termination area used for being connected to an external conductive member is formed at the rear end of the conductive sheet; and the contact area of the conductive sheet is coplanar with the middle portion of the conductive sheet. According to the present utility model, by means of optimization and adjustment of the structure of the conductive sheets, a bending procedure for contact areas during formation of the conductive sheets is eliminated, ensuring the stability of a GAP value of the contact member, improving the contact stability and reliability of the contact member.

Description

A contact piece Technical Field

[0001] The utility model belongs to the field of connectors, and in particular relates to a contact piece used for a connector. Background Art

[0002] In the connector industry, contacts have always been the most important parts of connectors and are directly related to the reliability of connector connection performance.

[0003] Figure 1 shows the structure of an existing connector, which uses a sheet-type contact. The front end of the contact is the contact area, and the contact area and the rear end of the contact are bent into shape. In order to improve the production efficiency of contacts and connectors and reduce product costs, more and more manufacturers are using mold stamping to produce sheet-type contacts. However, in the stamping process of producing sheet-type contacts, the contact area at the front end of the contact is formed by bending the strip through the mold. Since the material itself has a certain elasticity, the GAP value of the bent contact is unstable and difficult to control. In other words, the contact point spacing size of the contact area is unstable and difficult to control, which leads to low contact stability and reliability of the contact, and difficulty in controlling the plugging and unplugging force of the connector during the plugging and unplugging process.

[0004] Utility Model Content

[0005] The purpose of the utility model is to provide a contact piece, which ensures the forming stability of the contact piece and increases the contact stability and reliability of the contact piece by optimizing the contact piece structure.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a contact piece, including a conductive sheet, the contact area at the front end of the conductive sheet is provided with a raised contact point that can contact the matching plug-in, and the rear end of the conductive sheet forms a terminal area for connecting to an external conductive piece; the contact area of ​​the conductive sheet is coplanar with the middle part of the conductive sheet.

[0007] Beneficial effect: The contact area of ​​the conductive sheet is coplanar with the middle of the conductive sheet, which can reduce the bending process of the contact area, ensure the stability and easy control of the GAP value of the contact piece, and improve the contact stability and reliability of the contact piece.

[0008] The contact area of ​​the conductive sheet is configured as a conductive spring sheet, on which a plurality of conductive spring claws arranged at intervals are provided, and the front end of each conductive spring claw is provided with the protruding contact point.

[0009] Beneficial effect: Each conductive spring claw is provided with a raised contact point for contacting the adapter pair, ensuring a sufficient number of contact points and increasing the plug-in stability between the contact piece and the adapter pair in a high-frequency vibration environment.

[0010] Furthermore, the raised contact points on the multiple conductive spring claws on the same conductive spring sheet are staggered in the plugging direction of the contact piece.

[0011] Beneficial effect: During the plugging process, the adapter pair can contact multiple conductive spring claws in sequence, which can disperse the plugging and unplugging force of the adapter pair during the plugging and unplugging process, making the plugging and unplugging process smoother.

[0012] The contact piece provided by the utility model further comprises an outer sheath which is sleeved on the contact area at the front end of the conductive piece.

[0013] Beneficial effect: The provision of the outer sheath can prevent the conductive sheet from yielding and becoming weak after the contact piece has been used multiple times.

[0014] Furthermore, an inner convex rib capable of pressing against the conductive sheet is provided on the inner side of the outer sheath, and an edge of the inner convex rib is provided with a stop surface for cooperating with a limiting boss on the conductive sheet to prevent the outer sheath from falling off.

[0015] Beneficial effect: The setting of the inner convex rib can ensure the overall strength of the outer sheath on the one hand, and make the outer sheath and the conductive sheet fit more tightly on the other hand; through the cooperation of the stop surface and the limiting boss, the outer sheath can be prevented from falling off the conductive sheet.

[0016] Furthermore, the outer surface of the outer sheath is provided with an external convex rib protruding from the outer surface, and the external convex rib is in contact with the external shell outside the contact piece, so that a movable gap is formed between the front end of the contact piece and the external shell for the conductive spring claw to open; the external convex rib is provided with a groove that can form a convex-concave fit with the external shell to provide retention force for the contact piece.

[0017] Beneficial effect: The setting of the external convex rib can provide a movable space for the opening of the conductive spring claw. At the same time, the groove of the external convex rib can provide a certain holding force for the contact part by cooperating with the protrusion of the external shell, thereby preventing the contact part from being pushed into the external shell during the contact part insertion process.

[0018] Furthermore, a supporting spring claw is provided at the front of the outer sheath, and the supporting spring claw corresponds to the conductive spring claw one by one and is supported on the outer side of the corresponding conductive spring claw.

[0019] Beneficial effect: The support provided by the supporting spring claw to the conductive spring claw can prevent stress relaxation of the conductive spring claw after repeated plugging and unplugging, and provide the conductive spring claw with a stable positive force.

[0020] Furthermore, the edge of the conductive sheet is provided with a limiting structure for cooperating with an external shell outside the contact piece, and the limiting structure includes a limiting step and / or a limiting curved surface.

[0021] Beneficial effect: Through the cooperation between the limiting structure and the external shell of the contact, the stability of the contact in the external shell can be improved, the shaking of the contact during the plugging and unplugging process can be avoided, and the reliability of the plugging and unplugging of the contact can be ensured.

[0022] As an implementation manner, the conductive sheet mentioned above is provided as one.

[0023] As another embodiment, two conductive sheets are provided.

[0024] Beneficial effect: The number of conductive sheets can be selected according to the usage scenario to meet the usage requirements, thereby expanding the application scope of the utility model.

[0025] Furthermore, the parts where the two conductive sheets are arranged opposite to each other are provided with a constraint structure for constraining the conductive sheets in a direction perpendicular to the surface of the conductive sheets. The constraint structure is a protruding structure arranged on the inner side of the surface of the conductive sheets, or the constraint structure is a fastener or a bending portion connecting the two conductive sheets, and the bending portion and the two conductive sheets are an integral structure.

[0026] Beneficial effect: The constraint structure can prevent the conductive sheet from shaking significantly during the plugging and unplugging process, especially prevent large-scale shaking of the contact area, and further ensure the stability of the GAP value of the contact piece.

[0027] As another embodiment, the conductive sheet is provided as one and is a flat plate structure, the contact area at the front end is formed by a recess to form the raised contact point, and the conductive sheet is covered with an outer sheath.

[0028] Beneficial effects: The structure of the conductive sheet can be selected according to the usage scenario to meet the usage requirements, thereby expanding the application scope of the utility model; the provision of the outer sheath can prevent the conductive sheet from yielding and becoming weak after the contact piece has been used multiple times.

[0029] The beneficial effects of the present invention are as follows: the present invention reduces the bending procedure of the contact area during the conductive sheet forming process by optimizing and adjusting the conductive sheet structure, thereby ensuring the stability of the contact piece GAP value, thereby increasing the contact stability and reliability of the contact piece; by setting the contact piece constraint structure, it avoids large shaking of the contact area during the plugging and unplugging process, further ensuring the stability of the contact piece GAP value. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] FIG1 is a schematic structural diagram of a connector in the prior art;

[0031] FIG2 is a schematic structural diagram of the utility model in Example 1;

[0032] FIG3 is a schematic structural diagram of the conductive sheet in Example 1;

[0033] FIG4 is a schematic structural diagram of the contact area and transition area of ​​the conductive sheet in Example 1;

[0034] FIG5 is a schematic diagram of a first connection method of two conductive sheets in Example 1;

[0035] FIG6 is a schematic diagram of a second connection method of two conductive sheets in Example 1;

[0036] FIG7 is a schematic structural diagram of the outer sheath in Example 1;

[0037] FIG8 is a schematic diagram of the matching relationship between the outer sheath and the conductive sheet in Example 1;

[0038] FIG9 is a schematic structural diagram of the conductive sheet in Example 2;

[0039] FIG10 is another structural schematic diagram of the conductive sheet in Example 2;

[0040] FIG11 is a schematic structural diagram of the conductive sheet in Example 3;

[0041] Markings in the figure: 1. Conductive sheet, 11. Contact area, 111. Conductive spring sheet, 112. Conductive spring claw, 113. Raised contact, 114. Recess, 12. Transition area, 121. Limiting step, 122. Limiting curved surface, 123. Limiting boss, 13. Termination area; 2. Outer sheath, 21. Supporting spring claw, 22. Groove, 23. Stop surface, 24. Outer rib, 25. Inner rib, 26. Movable gap. DETAILED DESCRIPTION

[0042] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments, but they are not intended to limit the present invention in any way.

[0043] Example 1

[0044] 2 and 3 , a contact member includes two conductive plates 1 and an outer sheath 2 mounted on the two conductive plates 1. The conductive plates 1 have a contact area 11 at the front, a transition area 12 in the middle, and a termination area 13 at the rear. The contact area 11 is used for mating with an adapter, and the termination area 13 is used for connecting to an external conductive member. Connection structures include, but are not limited to, crimping, welding, and bolting. The outer sheath 2 wraps around the contact area 11 and has a socket for inserting the adapter.

[0045] As an option, as shown in FIG5 , the two conductive sheets can be integrally formed by strip stamping. In this case, the terminal areas 13 of the two sheets are connected together by bending. After the terminal areas 13 are bent, the two contact areas 11 at the front ends of the two conductive sheets 1 face each other, and the transition areas 12 in the middle of the two conductive sheets face each other.

[0046] As another option, as shown in FIG6 , the terminal areas of the two conductive sheets 1 are riveted together, and the two contact areas 11 of the two conductive sheets 1 are arranged with their surfaces facing each other, and the transition areas 12 in the middle of the two conductive sheets are arranged with their surfaces facing each other.

[0047] As other connection methods, the terminal areas of the two conductive sheets can also be spliced ​​together by force installation, welding, threaded connection, etc.

[0048] As shown in FIG4 , the contact area 11 of the conductive sheet 1 is configured as a conductive spring sheet 111 and a plurality of conductive spring claws 112 arranged at intervals on the conductive spring sheet 111. The front ends of the conductive spring claws 112 are provided with raised contacts for mating with the adapter plug-in. The roots of the conductive spring claws 112 are coplanar with the transition zone board surface, so that the roots of the conductive spring claws 112 are not bent relative to the board surface of the transition zone 12, thereby reducing the bending process of the contact area 11, ensuring the stability and easy control of the GAP value of the contact piece, and improving the contact stability and reliability of the contact piece.

[0049] The raised contacts 113 on the multiple conductive spring claws 112 of the same conductive sheet 1 are staggered in the direction of the contact piece's plug-in, so that the adapter plug-in can contact the multiple conductive spring claws 112 in succession, which can disperse the plug-in and pull-out force of the adapter plug-in during the plug-in and pull-out process, making the plug-in and pull-out process smoother. The staggered arrangement can be shown in Figure 4, where the raised contacts 113 located on both sides of the conductive spring sheet in the width direction are closer to the front, and the raised contacts 113 located in the middle are closer to the back. That is, the conductive spring claws 112 on both sides in the width direction are the longest, the conductive spring claws 112 in the middle are the shortest, and the lengths of the other conductive spring claws 112 decrease from the sides to the middle. Similarly, the staggered arrangement of the raised contacts 113 can also be achieved by using a setting opposite to that shown in Figure 4.

[0050] The transition zones 12 of the two conductive sheets 1 are arranged relative to each other, and the inner sides of the two sheets are contacted and matched by a raised structure as shown in Figure 3, preventing the front contact zone 11 from experiencing large fluctuations, further ensuring the stability of the contact gap value. In addition to the raised structure matching method shown in Figure 3, the front contact zone 11 can also be constrained by a bend fit or fastener connection method. The bend fit refers to the connection of the two conductive sheets 1 at the transition zone 12 via a bend.

[0051] Continuing with Figure 4, the conductive sheet 1 is provided with a limiting step 121 and a limiting curved surface 122 on both sides of the plate surface in the transition zone. The limiting step 121 is located in front of the limiting curved surface 122. In this embodiment, the limiting curved surface 122 is a wavy surface; in other embodiments, it can also be a curved surface of other shapes. The cooperation between the limiting step 121 and the limiting curved surface 122 and the external housing of the contact can improve the stability of the contact within the external housing, prevent the contact from shaking during insertion and removal, and ensure the reliability of contact insertion and removal.

[0052] In other embodiments, only the limiting step 121 or only the limiting curved surface 122 may be provided according to the requirements of the usage scenario.

[0053] As shown in FIG4 , a limiting boss 123 is provided at the intersection of the transition zone 12 and the contact zone 11 . The limiting boss 123 is provided on the outer surface of the conductive sheet 1 and is located within the transition zone 12 , and is mainly used for the installation and fixation of the outer sheath 2 .

[0054] The outer sheath 2 is fitted over the front end of the contact to ensure the overall strength of the sheet contact jack. Specifically, the outer sheath 2 fits over the contact areas 11 of the two conductive sheets 1. The structure of the outer sheath 2 is shown in Figure 7. The front portion of the outer sheath 2 comprises support spring claws 21, which correspond one-to-one with the conductive spring claws 112 of the conductive sheet 1. Supporting the outer sides of the conductive spring claws 112, they prevent stress relaxation after repeated insertion and removal, providing a stable positive force to the conductive spring claws 112. A raised inner rib 25 is provided on the inner side of the rear portion of the outer sheath 2 to ensure overall strength and ensure a tighter fit between the outer sheath 2 and the conductive sheet 1. A notch is provided on the front edge of the inner rib 25 to form a stop surface 23 that engages the stop boss 123. The stop surface 23 cooperates with the stop boss 123 to prevent the outer sheath 2 from falling off the conductive sheet.

[0055] Furthermore, the outer surface of the outer sheath 2 is provided with an external rib 24, which protrudes from the surface of the outer sheath 2. As shown in Figure 8, when the contact is installed in the outer housing, the external rib 24 fits against the outer housing, forming a movable gap 26 between the contact area 11 and the outer housing. This ensures that the front end of the conductive sheet 1 can be opened when the adapter is inserted into the contact area 11. Furthermore, a notch is provided on the rear edge of the external rib 24, forming a groove 22 that mates with the raised portion in the outer housing, providing a certain retention force for the contact and preventing the contact from being pushed into the outer housing during the contact insertion process.

[0056] Example 2

[0057] This embodiment is a variation of Example 1, designed to meet different application scenarios than Example 1. In this embodiment, a single conductive sheet is provided, and its structure is identical to that of Example 1. As shown in Figures 9 and 10, the length of the conductive spring claw 112 can be tailored to the specific situation. An outer sheath, as described in Example 1, is installed over the conductive sheet.

[0058] Example 3

[0059] This embodiment proposes another conductive sheet structure. This conductive sheet 1 is an overall flat plate with a row of raised contacts on its front contact area 11. The back of each raised contact is a recessed cavity 114. An outer sheath (not shown) is forcibly applied to the contact area 11. The outer sheath fits in contact with the side where the recesses are located, providing support for the raised contacts and preventing the conductive sheet from yielding after long-term use. Similar to Example 1, the outer surface of the outer sheath is provided with external ribs that fit in contact with the outer shell of the contact element, creating a gap between the front end of the contact element and the outer shell for the contact area to open.

[0060] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Those skilled in the art should understand that the specific implementation methods of the present invention can be modified or replaced with equivalents with reference to the above embodiments. Any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention are within the scope of protection of the pending claims.

Claims

1. A contact element, comprising a conductive sheet (1), characterized in that: The contact area at the front end of the conductive sheet (1) is provided with a raised contact point (113) capable of contacting an adaptable plug-in, and the rear end of the conductive sheet forms a terminal area (13) for connecting to an external conductive member; the contact area of ​​the conductive sheet is coplanar with the middle of the conductive sheet.

2. A contact according to claim 1, characterized in that: The contact area of ​​the conductive sheet is configured as a conductive spring sheet (111), on which a plurality of conductive spring claws (112) arranged at intervals are disposed, and the front end of each conductive spring claw (112) is provided with the protruding contact point (113).

3. A contact according to claim 2, characterized in that: The protruding contact points (113) on a plurality of conductive spring claws (112) on the same conductive spring sheet (111) are arranged in a staggered manner in the plugging direction of the contact piece.

4. A contact according to claim 2, characterized in that: It also includes an outer sheath (2) which is sleeved on the front end contact area (11) of the conductive sheet (1).

5. A contact according to claim 4, characterized in that: An inner convex rib (25) capable of pressing against the conductive sheet is provided on the inner side of the outer sheath (2), and a stop surface (23) is provided on the edge of the inner convex rib (25) for cooperating with a limiting boss (123) on the conductive sheet to prevent the outer sheath (2) from falling off.

6. A contact according to claim 4, characterized in that: The outer surface of the outer sheath (2) is provided with an outer convex rib (24) protruding from the outer surface, and the outer convex rib (24) is fitted with an external shell outside the contact piece, so that a movable gap (26) is formed between the front end of the contact piece and the external shell for the conductive spring (111) to open; the outer convex rib (24) is provided with a groove (22) that can form a convex-concave fit with the external shell to provide a retaining force for the contact piece.

7. A contact according to claim 4, characterized in that: A supporting spring claw (21) is arranged at the front of the outer sheath (2), and the supporting spring claw (21) corresponds to the conductive spring claw (112) one by one and is supported on the outside of the corresponding conductive spring claw (112).

8. A contact according to claim 1, characterized in that: The edge of the conductive sheet is provided with a limiting structure for cooperating with an external shell outside the contact piece; the limiting structure comprises a limiting step (121) and / or a limiting curved surface (122).

9. A contact according to any one of claims 1 to 8, characterized in that: The conductive sheet is provided in one piece.

10. A contact according to any one of claims 1 to 8, characterized in that: The number of the conductive sheets is two.

11. A contact according to claim 10, characterized in that: The parts where the two conductive sheets are arranged opposite to each other are provided with a restraining structure for restraining the conductive sheets in a direction perpendicular to the surface of the conductive sheets. The restraining structure is a protruding structure arranged on the inner side of the surface of the conductive sheets, or the restraining structure is a fastener or a bending part connecting the two conductive sheets, and the bending part and the two conductive sheets are an integral structure.

12. A contact according to claim 1, characterized in that: The conductive sheet is provided as one and is a flat plate structure, and the contact area at the front end is formed by a recess to form the convex contact point; the conductive sheet is covered with an outer sheath.

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