Rivet type silver-nickel electrical contact

Abstract

The utility model belongs to the technical field of electrical contacts, and discloses a rivet-type silver-nickel electrical contact, which comprises a connecting piece and a contact piece which are detachably connected, one side, facing the connecting piece, of the contact piece is fixedly connected with a connecting rod, one side, facing the connecting rod, of the connecting piece sinks inwards to form a connecting groove, the connecting groove is connected with the connecting rod in a screwing mode, the contact piece comprises a contact body, and one side of the contact body is fixedly connected with one end, away from the main rod, of the connecting rod. When the length of the device needs to be adjusted after the device is installed, the connecting rod moves relative to the main rod by rotating the connecting rod, so that the extension length of the connecting rod is adjusted, the position of the contact body is adjusted, the length of the device after installation can be adjusted, and the application range of the device is widened. And during replacement, only the damaged contact body needs to be replaced, so that the use cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric contacts, and in particular relates to a rivet-type silver-nickel electric contact. Background Art

[0002] Electrical contacts are key components used in electrical equipment to connect and disconnect circuits, and their performance directly affects the reliability, safety, and service life of electrical equipment. Traditional electrical contact materials, such as pure silver, have good electrical conductivity, but lack corrosion resistance and hardness; nickel alloys, on the other hand, have strong corrosion resistance but relatively poor electrical conductivity. Since electrical contacts made of silver-nickel alloy can maintain high electrical conductivity while significantly improving corrosion resistance and mechanical strength, silver-nickel electrical contacts are widely used. However, existing electrical contacts have certain defects when used. For example, in the Chinese patent with the announcement number "CN 216288016 U", a rivet-type electrical contact and a riveted structure are disclosed, including a connected nail head and a nail foot, wherein the surface of one side of the nail head used to connect with the nail foot is a nail head reference surface, and the nail head reference surface and the nail foot circumferential surface are connected and transitioned by a straight chamfer or a curved chamfer. The rivet-type electrical contact comprises a copper base and a silver alloy layer. The copper base is nail-shaped and includes a columnar portion forming the nail foot and a copper base portion forming part of the nail head. The surface of the copper base portion used for connection with the columnar portion serves as the nail head reference surface, and the silver alloy layer is attached to the surface of the copper base portion away from the columnar portion. The surface of the copper base portion away from the columnar portion is a concave curved surface, and the surface of the silver alloy layer connected to the copper base portion is a corresponding convex curved surface. Although this device can connect to a circuit, it is a one-piece structure, so the length of the device cannot be adjusted after installation, and it may be impossible to properly connect the electrodes. The device has a limited scope of use. In addition, the device is fixed by riveting, which makes connection and disassembly difficult and the connection and disassembly efficiency low. Utility Model Content

[0003] The purpose of the present utility model is to provide a rivet-type silver-nickel electrical contact to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a rivet-type silver-nickel electrical contact, comprising a detachably connected connecting piece and a contact piece;

[0005] The contact member is fixedly connected to a connecting rod on one side facing the connecting member. The connecting member is recessed on one side facing the connecting rod to form a connecting groove, and the connecting groove is screwed to the connecting rod.

[0006] Preferably, the contact member comprises a contact body, and one side of the contact body is fixedly connected to an end of the connecting rod away from the main rod.

[0007] Preferably, a side of the contact body away from the connecting rod is recessed to form a top groove, and a silver-nickel alloy layer is provided inside the top groove.

[0008] Preferably, a plurality of limit heads are fixedly connected to a side of the contact body facing the connecting rod, and the connecting rod is located between the plurality of limit heads.

[0009] Preferably, the connecting member includes a main rod, a detachable limiting ring is screwed on the main rod, and a connecting hole matching the connecting rod is opened on the limiting ring.

[0010] Preferably, an insulating pad is bonded to the side of the limiting ring facing the contact body.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] (1) The utility model provides a connecting groove and a connecting rod, which are screwed together to connect the contact body to the main rod. When the device is installed and the length needs to be adjusted, the connecting rod is rotated to move the connecting rod relative to the main rod, thereby adjusting the extension length of the connecting rod and then adjusting the position of the contact body. The length of the device after installation can be adjusted, thereby increasing the scope of use of the device. When replacing, only the damaged contact body needs to be replaced, thereby reducing the cost of use.

[0013] (2) The utility model sets a limit ring and a main rod, and the limit ring is screwed together with the main rod to fix the circuit board. When personnel need to install or disassemble the device, there is no need to fix it by riveting, and the disassembly is simple and does not require damage to the device, thereby reducing the difficulty of connecting and disassembling the device and improving the efficiency of connecting and disassembling the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is one of the three-dimensional diagrams of the present utility model;

[0015] Figure 2 This is the second stereogram of the utility model;

[0016] Figure 3 This is a three-dimensional diagram of the utility model with the limiting ring removed;

[0017] Figure 4 A three-dimensional diagram of the limiting ring of the utility model;

[0018] Figure 5 for Figure 3 Exploded diagram;

[0019] In the figure: 1. Connecting part; 11. Limiting ring; 12. Connecting hole; 13. Insulating pad; 14. Main rod; 15. Connecting groove; 2. Contact member; 21. Connecting rod; 22. Contact body; 23. Limiting head; 24. Top groove; 25. Silver-nickel alloy layer. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-5 As shown, the utility model provides the following technical solutions:

[0022] A rivet-type silver-nickel electrical contact, characterized by comprising a detachably connected connecting member 1 and a contact member 2;

[0023] A connecting rod 21 is fixedly connected to the side of the contact member 2 facing the connecting member 1 . The side of the connecting member 1 facing the connecting rod 21 is indented to form a connecting groove 15 . The connecting groove 15 is screwed together with the connecting rod 21 .

[0024] Through the above technical solution, when a person needs to use the device, he screws the connector 1 through the connecting groove 15 and the connecting rod 21 on the contact member 2 to connect the connector 1 with the contact member 2, and then connects the connector 1 to the circuit board and connects it to the electrode through the contact member 2 to control the circuit path and disconnection.

[0025] Specifically, in one embodiment, regarding the contact member 2:

[0026] like Figure 1-Figure 3 and Figure 5 As shown, the contact member 2 includes a contact body 22 , and one side of the contact body 22 is fixedly connected to an end of the connecting rod 21 away from the main rod 14 .

[0027] In this embodiment, the connector 1 is screwed together with the connecting rod 21 on the contact body 22 through the connecting groove 15, so that the connector 1 is connected to the contact body 22, and then the connector 1 is connected to the circuit board and connected to the electrode through the contact body 22, so that the circuit path and disconnection can be controlled.

[0028] In addition, in the present invention, in order to improve the electrical conductivity and strength of the device after installation, as Figure 1-Figure 5 As shown, the side of the contact body 22 away from the connecting rod 21 is recessed to form a top groove 24 , and a silver-nickel alloy layer 25 is provided inside the top groove 24 .

[0029] In this embodiment, when the contact body 22 is working, the silver-nickel alloy layer 25 inside the top groove 24 cooperates to increase the conductivity and strength of the device.

[0030] Furthermore, in the present invention, after the device is installed, in order to make the contact body 22 more stable, as shown in FIG. Figure 2-Figure 3 As shown, a plurality of limit heads 23 are fixedly connected to a side of the contact body 22 facing the connecting rod 21 , and the connecting rod 21 is located between the plurality of limit heads 23 .

[0031] In this embodiment, after the device is installed, the plurality of limit heads 23 abut against the circuit board, thereby making the device more stable after installation.

[0032] Specifically, in one embodiment, regarding the above-mentioned connecting member 1:

[0033] like Figure 1-Figure 5 As shown, the connecting member 1 includes a main rod 14 , on which a detachable limiting ring 11 is screwed, and the limiting ring 11 is provided with a connecting hole 12 that matches the connecting rod 21 .

[0034] In this embodiment, the limiting ring 11 is screwed together with the main rod 14, and the limiting ring 11 contacts the circuit board, thereby fixing the main rod 14 and completing the fixation of the contact body 22. When the main rod 14 needs to be connected to the connecting rod 21, the connecting groove 15 on the main rod 14 is screwed together with the connecting rod 21, so that the main rod 14 is connected to the connecting rod 21, and the contact body 22 is rotated, thereby driving the connecting rod 21 to rotate, so that the connecting rod 21 moves relative to the main rod 14, thereby adjusting the outward extension length of the connecting rod 21, and then adjusting the position of the contact body 22. When the device needs to be disassembled, the limiting ring 11 is reversed to separate the limiting ring 11 from the connecting rod 21, and the device can be disassembled.

[0035] In addition, in the present invention, in order to make the limiting ring 11 more secure when contacting the circuit board, an insulating pad 13 is bonded to the side of the limiting ring 11 facing the contact body 22 as shown in the figure.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rivet-type silver-nickel electrical contact, characterized in that: It comprises a detachably connected connecting piece (1) and a contact piece (2); The contact member (2) is fixedly connected to a connecting rod (21) on one side facing the connecting member (1); the connecting member (1) is recessed on one side facing the connecting rod (21) to form a connecting groove (15); and the connecting groove (15) is screwed together with the connecting rod (21).

2. The rivet-type silver-nickel electrical contact according to claim 1, characterized in that: The contact member (2) comprises a contact body (22), one side of the contact body (22) being fixedly connected to an end of the connecting rod (21) away from the main rod (14).

3. The rivet-type silver-nickel electrical contact according to claim 2, characterized in that: A side of the contact body (22) away from the connecting rod (21) is indented to form a top groove (24), and a silver-nickel alloy layer (25) is provided inside the top groove (24).

4. A rivet-type silver-nickel electrical contact according to claim 2 or 3, characterized in that: A plurality of limiting heads (23) are fixedly connected to a side of the contact body (22) facing the connecting rod (21), and the connecting rod (21) is located between the plurality of limiting heads (23).

5. The rivet-type silver-nickel electrical contact according to claim 2, characterized in that: The connecting member (1) comprises a main rod (14), a detachable limiting ring (11) is screwed onto the main rod (14), and a connecting hole (12) matching the connecting rod (21) is provided on the limiting ring (11).

6. The rivet-type silver-nickel electrical contact according to claim 5, characterized in that: An insulating pad (13) is bonded to the side of the limiting ring (11) facing the contact body (22).

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