Special-shaped silver contact

Abstract

The utility model relates to the technical field of electronic components, and discloses a special-shaped silver contact which comprises a base body, the upper portion of the base body is fixedly connected with a connecting block, the inner wall of the connecting block is provided with an internal thread groove, the internal thread of the internal thread groove is in threaded connection with an external thread protruding strip, the internal of the external thread protruding strip is fixedly connected with a contact head, and the contact head is fixedly connected with the base body. A sliding groove is formed in the connecting block, a reinforcing assembly is fixedly connected into the sliding groove and used for enabling the contact head and the connecting block to be connected more firmly, a sleeve is fixedly connected to the bottom of the contact head, and a contact layer is fixedly connected to the outer portion of the upper side of the contact head. The outermost side of the interior of the contact layer is fixedly connected with an anti-oxidation layer. According to the utility model, the contact head can be conveniently disassembled and replaced, the overall replacement is not needed, the replacement cost is reduced, the contact head is protected in multiple aspects, the performance and reliability of the contact head are improved, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic component technical field especially relates to a special-shaped silver contact. BACKGROUND

[0002] The special-shaped silver contact is a kind of contact element widely used in electrical equipment, usually used in switch, relay, circuit breaker and other electrical components.Its function is to ensure the connection and disconnection of circuit, and has strong wear resistance, corrosion resistance and other characteristics.

[0003] Through the search, China patent publication No. CN205428814U discloses a moving contact for isolating switch, including working layer and base, working layer is made of precious metal alloy material, the end of the moving contact body for connecting static contact power forming at least one riveting hole, the base and the corresponding riveting hole form riveting structure;That is, the contact point of the moving contact body integrally formed by red copper in the prior art is excavated to form a riveting hole, and the contact formed by the working layer made of precious metal alloy material and the base made of red copper material is connected in the riveting hole by upsetting, while ensuring the contact area of moving contact body and static contact, also ensure that the moving contact will not be welded or burned when the line is short-circuited, improve the reliability of moving contact, solve the problem of red copper not resistant to welding in prior art, but the working layer of contact point is made of silver, which is soft and easy to wear, and the working layer and the base are connected as a whole by welding, when the working layer of contact point is worn out and the base is directly exposed, the base and the working layer of contact point must be replaced as a whole, which increases the cost of replacement, therefore, a special-shaped silver contact is proposed to solve the above problems. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides a special-shaped silver contact, which aims at improving the problem that the working layer of contact point is made of silver, which is soft and easy to wear, and the working layer and the base are connected as a whole by welding, when the working layer of contact point is worn out and the base is directly exposed, the base and the working layer of contact point must be replaced as a whole, which increases the cost of replacement in prior art.

[0005] In order to realize the above purpose, the utility model adopts the following technical scheme: a special-shaped silver contact, including base, the upper part of the base is fixedly connected with connecting block, the inner wall of the connecting block is provided with internal thread groove, the internal thread groove is connected with external thread convex strip in screw thread, the internal thread convex strip is fixedly connected with contact head, the inside of the connecting block is provided with sliding slot, the inside of the sliding slot is fixedly connected with reinforcing assembly, the reinforcing assembly is used for making the contact head and the connecting block more fastened, the bottom of the contact head is fixedly connected with sleeve.

[0006] As a further description of the above technical scheme:

[0007] The upper side of the contact head is externally fixedly connected with a contact layer, the innermost side of the contact layer is fixedly connected with an oxidation-resistant layer, the inner side of the oxidation-resistant layer is fixedly connected with a corrosion-resistant layer, and the inner side of the corrosion-resistant layer is fixedly connected with a wear-resistant layer.

[0008] As a further description of the above technical solution:

[0009] The reinforcing assembly comprises a threaded head and a mounting groove, the threaded head is fixedly connected in the inner side of the sliding groove, the mounting groove is arranged in the inner bottom side of the contact head, and the threaded head is screw-connected in the inner side of the mounting groove.

[0010] As a further description of the above technical solution:

[0011] The threaded head is rotatably connected in the inner side of the sleeve, and the sleeve is rotatably connected in the inner side of the sliding groove.

[0012] As a further description of the above technical solution:

[0013] The oxidation-resistant layer is made of silver tin oxide material.

[0014] As a further description of the above technical solution:

[0015] The corrosion-resistant layer is made of silver alloy.

[0016] As a further description of the above technical solution:

[0017] The wear-resistant layer is made of silver tungsten alloy.

[0018] The utility model has the advantages of the following beneficial effects:

[0019] 1. In the utility model, the contact head is rotated, the external thread convex strip is rotated in the inner thread groove, the inner side of the connecting block is rotated and separated, the contact head is separated from the threaded head, the sleeve is separated from the threaded head in the inner side of the sliding groove, the contact head is conveniently disassembled and replaced, the whole replacement is not needed, the replacement cost is reduced.

[0020] 2. In the utility model, the oxidation-resistant layer made of silver tin oxide material has good oxidation resistance, the corrosion-resistant layer made of silver alloy has good corrosion resistance, the wear-resistant layer made of silver tungsten alloy has excellent wear resistance, the contact head is protected in multiple aspects, the performance and reliability of the contact head are improved, and the service life is prolonged. DRAWINGS

[0021] Figure 1 A special-shaped silver contact is provided in the utility model, and a perspective view of the special-shaped silver contact is shown in the drawings.

[0022] Figure 2The utility model provides a split drawing of special-shaped silver contact.

[0023] Figure 3 The utility model provides a slide rail schematic view of special-shaped silver contact.

[0024] Figure 4 The utility model provides a slide rail schematic view of special-shaped silver contact.

[0025] Legend:

[0026] 1, base body;2, connecting block;3, contact head;4, contact layer;5, outer thread convex strip;6, inner thread groove;7, threaded head;8, sliding groove;9, sleeve;10, mounting groove;11, oxidation resistance layer;12, corrosion resistance layer;13, wear resistance layer. Specific implementation

[0027] The technical scheme in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0028] Referring to Figure 1 , Figure 2 , Figure 3 An embodiment provided by the utility model: a special-shaped silver contact, including base body 1, the upper portion of base body 1 is fixedly connected with connecting block 2, the inner wall of connecting block 2 is provided with inner thread groove 6, the inside screw thread of inner thread groove 6 is connected with outer thread convex strip 5, the inside of outer thread convex strip 5 is fixedly connected with contact head 3, so that it can conveniently open and replace contact head 3, the inside of connecting block 2 is provided with sliding groove 8, the inside of sliding groove 8 is fixedly connected with reinforcing assembly, and the reinforcing assembly is used to make contact head 3 and connecting block 2 connect more tightly, the bottom of contact head 3 is fixedly connected with sleeve 9;Reinforcing assembly includes threaded head 7 and mounting groove 10, threaded head 7 is fixedly connected in the inside of sliding groove 8, mounting groove 10 is provided in the inside bottom side of contact head 3, threaded head 7 is screw connected in the inside of mounting groove 10, threaded head 7 is rotatably connected in the inside of sleeve 9, sleeve 9 is rotatably connected in the inside of sliding groove 8, so that it further reinforces the fastening and stability of the connection of contact head 3 and connecting block 2.

[0029] By slowly rotating the contact head 3, the external thread ridge 5 is rotated inside the internal thread groove 6, and the external thread ridge 5 is gradually rotated out of the inside of the connecting block 2 during the rotation of the contact head 3, and the threaded head 7 is rotated inside the mounting groove 10 and gradually separated from the contact head 3, no longer maintaining the connection state, and the body sleeve 9 moves synchronously out of the inside of the sliding groove 8, thereby separating from the threaded head 7, realizing quick and convenient disassembly and replacement of the contact head 3, without the need to replace the entire component, greatly reducing the replacement cost, improving the maintainability and economy of the component.

[0030] Referring to Figure 1 , Figure 2 , Figure 3 , the upper side of the contact head 3 is fixedly connected with a contact layer 4, the innermost side of the contact layer 4 is fixedly connected with an oxidation-resistant layer 11, the inner side of the oxidation-resistant layer 11 is fixedly connected with a corrosion-resistant layer 12, and the inner side of the corrosion-resistant layer 12 is fixedly connected with a wear-resistant layer 13. The oxidation-resistant layer 11 is made of silver tin oxide material, the corrosion-resistant layer 12 is made of silver alloy, and the wear-resistant layer 13 is made of silver tungsten alloy.

[0031] The contact layer 4 provided on the outside of the contact head 3 protects the contact head 3, the oxidation-resistant layer 11 made of silver tin oxide material has good oxidation resistance and can effectively resist the erosion of oxidation, maintaining the good state of the contact head 3, the corrosion-resistant layer 12 made of silver alloy improves the good corrosion resistance, so that it can still operate stably when facing various corrosive environments without being affected by corrosion, and the wear-resistant layer 13 made of silver tungsten alloy enables the contact head 3 to have excellent wear resistance, so that it can still maintain its excellent performance in frequent friction and wear environment, realizing all-round protection of the contact head 3, not only significantly improving the performance and reliability of the contact head 3, so that it can stably and efficiently operate under various complex working conditions, but also effectively prolonging the service life of the contact head 3 and reducing the use cost and maintenance frequency.

[0032] Working principle: when the contact head 3 needs to be replaced due to severe wear, the contact head 3 is rotated to make the external thread ridge 5 rotate inside the internal thread groove 6, so that it is rotated out of the inside of the connecting block 2, and the contact head 3 is separated from the threaded head 7, so that the sleeve 9 moves out of the inside of the sliding groove 8 and is separated from the threaded head 7, realizing convenient disassembly and replacement of the contact head 3 without the need for overall replacement, thereby reducing the replacement cost; the contact layer 4 provided on the outside of the contact head 3 protects the contact head 3, the oxidation-resistant layer 11 made of silver tin oxide material has good oxidation resistance, the corrosion-resistant layer 12 made of silver alloy has good corrosion resistance, and the wear-resistant layer 13 made of silver tungsten alloy has excellent wear resistance, realizing multi-aspect protection of the contact head 3, improving the performance and reliability of the contact head 3, and prolonging the service life.

[0033] It should be pointed out finally that: the above only for the preferred embodiments of the present application have, and not for limiting the present application, although the present application is described in detail with reference to the foregoing embodiments, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.

Claims

1. A non-circular silver contact, comprising a substrate (1), characterized in that: A connecting block (2) is fixedly connected to the upper part of the base (1). An internal thread groove (6) is provided on the inner wall of the connecting block (2). An external thread protrusion (5) is threaded inside the internal thread groove (6). A contact head (3) is fixedly connected inside the external thread protrusion (5). A sliding groove (8) is provided inside the connecting block (2). A reinforcing component is fixedly connected inside the sliding groove (8). The reinforcing component is used to make the connection between the contact head (3) and the connecting block (2) more secure. A sleeve (9) is fixedly connected to the bottom of the contact head (3).

2. The irregularly shaped silver contact according to claim 1, characterized in that: The upper outer side of the contact head (3) is fixedly connected to a contact layer (4), the outermost inner side of the contact layer (4) is fixedly connected to an anti-oxidation layer (11), the inner side of the anti-oxidation layer (11) is fixedly connected to an anti-corrosion layer (12), and the inner side of the anti-corrosion layer (12) is fixedly connected to a wear-resistant layer (13).

3. The irregularly shaped silver contact according to claim 1, characterized in that: The reinforcement component includes a threaded head (7) and a mounting groove (10). The threaded head (7) is fixedly connected inside the slide groove (8). The mounting groove (10) is opened on the bottom side inside the contact head (3). The threaded head (7) is threadedly connected inside the mounting groove (10).

4. The irregularly shaped silver contact according to claim 3, characterized in that: The threaded head (7) is rotatably connected to the inside of the sleeve (9), and the sleeve (9) is rotatably connected to the inside of the groove (8).

5. A non-circular silver contact according to claim 2, characterized in that: The antioxidant layer (11) is made of silver tin oxide material.

6. The irregularly shaped silver contact according to claim 2, characterized in that: The anti-corrosion layer (12) is made of silver alloy.

7. A non-circular silver contact according to claim 2, characterized in that: The wear-resistant layer (13) is made of silver-tungsten alloy.

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