A contact piece of a switch socket

Abstract

This utility model belongs to the field of contact sheet technology, and particularly relates to a contact sheet for a switch socket, including a fixing part, with a first extension part on both the left and right sides of the fixing part. The side of the first extension part is provided with a trapezoidal groove, one end of which abuts against the fixing part, and the other end of which is connected to a trapezoidal protrusion. A second extension part extends from the other side of the first extension part, and a first angle is formed between the first extension part and the second extension part, with the first angle ranging from 80° to 82°. A trapezoidal groove and a trapezoidal protrusion are mirror-image provided on one side of the second extension part. A support part is provided at the bottom of the fixing part, and a second angle is formed between the support part and the fixing part, with the second angle ranging from 95° to 97°. A contact part extends horizontally from the end of the support part in a direction parallel to the fixing part. A silver dot is provided at each of the left and right ends of the contact part, and the silver dot is fixed to the surface of the contact part by riveting.

Description

Technical Field

[0001] This utility model belongs to the field of contact plate technology, and in particular relates to a contact plate for a switch socket. Background Technology

[0002] Switches and sockets, as key components for electrical connection and control, are widely used in daily life and industry. The contact pieces, as the core component that enables switches and sockets to switch on and off circuits, directly affect the reliability, lifespan, and electrical safety of the switches and sockets.

[0003] Traditional switch and socket contact pieces are typically made of metal sheets through stamping and bending, and their spring arm structures are often quite simple, often employing a single bending angle. Under prolonged switching operation, the spring arm structure is prone to fatigue deformation due to stress concentration, leading to a decrease in contact pressure. This, in turn, can cause problems such as increased contact resistance, excessive temperature rise, and even arcing, posing safety hazards. Secondly, the contact extensions of traditional contact pieces that mate with other components are usually simple flat or curved surfaces, resulting in limited contact area and fit stability when mated with other components. When subjected to external forces in different directions (such as plug shaking), this can easily cause momentary power outages, affecting power supply stability.

[0004] Therefore, the contact pieces of existing switches and sockets have problems with poor elastic contact performance and poor stability. Utility Model Content

[0005] The purpose of this invention is to provide a contact piece for a switch socket, which aims to solve the problems of poor elastic contact performance and poor stability of the contact pieces in the prior art.

[0006] To achieve the above objectives, this utility model provides a contact piece for a switch socket, including a fixing part. The fixing part has first extension parts on both its left and right sides. A trapezoidal groove is provided on the side of each first extension part. One end of the trapezoidal groove abuts against the fixing part, and the other end of the trapezoidal groove is connected to a trapezoidal protrusion. A second extension part extends from the other side of the first extension part, forming a first angle between the first extension part and the second extension part. The first angle ranges from 80° to 82°. The trapezoidal groove and the trapezoidal protrusion are mirror-image disposed on one side of the second extension part.

[0007] The bottom of the fixing part is provided with a support part, and a second included angle is formed between the support part and the fixing part. The range of the second included angle is 95° to 97°. The end of the support part extends horizontally along a direction parallel to the fixing part and has a contact part. A silver dot is provided at each of the left and right ends of the contact part, and the silver dot is fixed to the surface of the contact part by riveting.

[0008] As an optional embodiment of this invention, one inclined surface of the trapezoidal groove coincides with one inclined surface of the trapezoidal protrusion.

[0009] As an optional embodiment of this invention, the diameter of the silver dot ranges from 2.5 mm to 2.7 mm.

[0010] As an optional embodiment of this utility model, the left and right ends of the support portion converge toward the central axis of the support portion at a third included angle to form a convergence portion.

[0011] As an optional embodiment of this invention, the range of the third included angle is 71° to 73°.

[0012] As an optional embodiment of this utility model, the left and right sides of the converging portion are each extended outward by an arc structure, and the arc structure is connected to the contact portion.

[0013] As an optional embodiment of this utility model, the contact portion includes a connecting bridge disposed in the middle of the contact portion, and a first riveting portion extending horizontally on the left side of the connecting bridge in a direction parallel to the fixing portion, the first riveting portion being used to rivet to the silver dot at the left end of the contact portion; a second riveting portion extending horizontally on the right side of the connecting bridge in a direction parallel to the fixing portion, the second riveting portion being used to rivet to the silver dot at the right end of the contact portion.

[0014] The contact piece of the switch socket provided in this embodiment of the present invention has at least one of the following technical effects:

[0015] This application provides a contact piece for a switch socket. By providing a first extension portion with trapezoidal grooves and trapezoidal protrusions on both sides of the fixing portion, and a second extension portion forming a specific angle with the first extension portion, the contact area between the contact piece and adjacent components is increased, the contact stability is improved, and the structural strength of the contact piece is optimized so that it can effectively disperse stress when subjected to force and prevent deformation and damage.

[0016] The support and fixing parts form a suitable angle to provide stable support for the contact part, ensuring that the contact part is in the correct position for good contact, and also guiding the stable transmission of current. The silver points at both ends of the contact part are fixed by riveting. The excellent conductivity and corrosion resistance of silver reduce contact resistance, reduce heat generation and oxidation, and the riveting method ensures that the silver points are not easy to fall off during long-term use, thus improving contact reliability and service life.

[0017] The design of the converging section and the arc structure further optimizes the structure of the contact piece, making it more adaptable and easier to assemble when used with other components. It also helps to improve the stress on the contact piece and enhance overall performance. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the contact piece of a switch socket according to the present invention.

[0020] Figure 2 This is a right-side view of the contact piece of a switch socket according to the present invention.

[0021] Figure 3 This is a top view of the contact piece of a switch socket according to the present invention.

[0022] Figure 4 This is a front view of the contact piece of a switch socket according to this utility model.

[0023] The following are the labeling elements in the figure:

[0024] 1. Fixing part; 2. First extension part; 3. Second extension part; 4. Support part; 5. Contact part; 6. Silver dot; 7. Converging part; 201. Trapezoidal groove; 202. Trapezoidal protrusion; 501. Connecting bridge; 502. First riveting part; 503. Second riveting part; 504. Inclined chamfer; 701. Arc structure; a. First included angle; b. Second included angle; c. Third included angle. Detailed Implementation

[0025] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0026] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0029] In specific embodiments of this utility model, such as Figure 1 As shown, a contact piece for a switch socket is provided, including a fixing part 1. The fixing part 1 has a first extension part 2 on both the left and right sides. The other side of the first extension part 2 extends a second extension part 3. The bottom of the fixing part 1 has a support part 4. The end of the support part 4 extends horizontally in a direction parallel to the fixing part 1 to a contact part 5. The left and right ends of the contact part 5 each have a silver dot 6.

[0030] Reference Figure 2 The first extension 2 has a trapezoidal groove 201 on its side. The trapezoidal groove 201 is located above the fixing part 1. One inclined surface of the trapezoidal groove 201 abuts against the edge of the fixing part 1. The other inclined surface of the trapezoidal groove 201 is connected to a trapezoidal protrusion 202. The inclined surface of the trapezoidal groove 201 coincides with one inclined surface of the trapezoidal protrusion 202. This design makes the structure of the first extension 2 more compact. When it is used with other components, the trapezoidal groove 201 can play a certain locking effect. The design of the trapezoidal groove 201 and the trapezoidal protrusion 202 can increase the contact area and improve the tightness and stability of the contact when used with other components.

[0031] Reference Figure 2 and Figure 3The first extension 2 and the second extension 3 form a first included angle α, which ranges from 80° to 82°. In this specific embodiment, α is preferably 81°. This angle range ensures sufficient space between the first extension 2 and the second extension 3 to cooperate with other components, while also optimizing their structural strength. This allows for better stress dispersion and prevents deformation under external forces. A trapezoidal groove 201 and a trapezoidal protrusion 202 are mirror-imagely provided on one side of the second extension 3, further increasing the contact area and contact points between the contact piece and adjacent components, thus improving contact reliability.

[0032] Reference Figure 4 A second included angle b is formed between the support part 4 and the fixing part 1. The range of the second included angle b is 95° to 97°, and the preferred embodiment of the present invention is 96°. The second included angle b enables the support part 4 to provide stable support for the contact part 5, ensuring that the contact part 5 is in a suitable position so as to make good contact with other conductive parts.

[0033] Reference Figure 3 The left and right ends of the support portion 4 converge towards the central axis of the support portion 4 at a third included angle c, forming a convergence portion 7. The range of the third included angle c is 71° to 73°, and in a preferred embodiment of the present invention, the third included angle c is 72°. The convergence portion 7 converges inward for a distance of 1.2 to 2.0 mm before stopping. In a preferred embodiment of the present invention, the convergence distance is 1.6 mm. An arc structure 701 extends outward from both the left and right sides of the convergence portion 7. The starting end of the arc structure 701 coincides with the end of the convergence portion 7, and the end of the arc structure 701 abuts against the contact portion 5. The design of the converging part 7 and the arc structure 701 optimizes the structure of the contact piece, making it more compatible and easier to assemble when used with other components in the switch socket. It also helps to improve the stress on the contact piece, preventing elastic deformation and stress concentration at the junction of the fixing part 1 and the supporting part 4 when the contact piece is subjected to elastic stress. The converging part 7 and the arc structure 701 can share some of the elastic stress through elastic deformation, thereby improving the overall mechanical and electrical performance.

[0034] Reference Figure 3 The support portion 4 extends horizontally at its end in a direction parallel to the fixing portion 1, forming a contact portion 5. A silver dot 6 is provided at each of the left and right ends of the contact portion 5. The diameter of the silver dot 6 ranges from 2.5mm to 2.7mm, and is preferably 2.6mm in this specific embodiment. The silver dot 6 is fixed to the surface of the contact portion 5 by riveting. The silver dot 6 is made of AgNi10 material, which has excellent conductivity and corrosion resistance. The riveting method ensures that the silver dot 6 will not easily fall off during long-term use, effectively reducing contact resistance, reducing heat generation and oxidation, and improving contact reliability and service life.

[0035] Reference Figure 3 The contact portion 5 includes a connecting bridge 501 disposed in the middle of the contact portion 5. A first riveting portion 502 extends horizontally from the left side of the connecting bridge 501 in a direction parallel to the fixing portion 1. The first riveting portion 502 is used to rivet the silver point 6 at the left end of the contact portion 5. An inclined chamfer 504 is provided at the junction of the first riveting portion 502 and the connecting bridge 501 for a stable transition. A second riveting portion 503 extends horizontally from the right side of the connecting bridge 501 in a direction parallel to the fixing portion 1. The second riveting portion 503 is used to rivet the silver point 6 at the right end of the contact portion 5. This design makes the riveting of the silver point 6 more secure, further ensuring the reliability of the connection between the silver point 6 and the contact portion 5, and ensuring that current can be stably transmitted through the silver point 6 and the contact portion 5.

[0036] In this embodiment, during use, the first extension portion 2 and the second extension portion 3, through their trapezoidal grooves 201, trapezoidal protrusions 202, and specific angles, make close contact with adjacent components, increasing the contact area, improving contact stability, and simultaneously dispersing stress to prevent deformation. The support portion 4 provides stable support for the contact portion 5, guiding current from the fixing portion 1 to the contact portion 5. The contact portion 5 contacts external conductive components through silver dots 6 at both ends, realizing the switching of the circuit. The excellent conductivity of the silver dots 6 and the robust riveting method ensure stable current transmission and reliable contact. The converging portion 7 and the arc structure 701 optimize the overall structure of the contact piece, making it more adaptable and under stress, thus improving the overall performance of the contact piece.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A contact piece for a switch socket, characterized in that, The device includes a fixing part, and a first extension part is provided on both the left and right sides of the fixing part. A trapezoidal groove is provided on the side of the first extension part. One end of the trapezoidal groove abuts against the fixing part, and the other end of the trapezoidal groove is connected to a trapezoidal protrusion. A second extension part extends from the other side of the first extension part. A first angle is formed between the first extension part and the second extension part. The first angle ranges from 80° to 82°. The trapezoidal groove and the trapezoidal protrusion are mirror-image provided on one side of the second extension part. The bottom of the fixing part is provided with a support part, and a second included angle is formed between the support part and the fixing part. The range of the second included angle is 95° to 97°. The end of the support part extends horizontally along a direction parallel to the fixing part and has a contact part. A silver dot is provided at each of the left and right ends of the contact part, and the silver dot is fixed to the surface of the contact part by riveting.

2. The contact piece of a switch socket according to claim 1, characterized in that, One inclined surface of the trapezoidal groove coincides with one inclined surface of the trapezoidal protrusion.

3. The contact piece of a switch socket according to claim 1, characterized in that, The diameter of the silver spot ranges from 2.5 mm to 2.7 mm.

4. The contact piece of a switch socket according to claim 1, characterized in that, The left and right ends of the support converge toward the central axis of the support at a third included angle, forming a convergence section.

5. The contact piece of a switch socket according to claim 4, characterized in that, The range of the third included angle is 71° to 73°.

6. The contact piece of a switch socket according to claim 4, characterized in that, The converging portion has an arc structure extending outwards on both the left and right sides, and the arc structure is connected to the contact portion.

7. The contact piece of a switch socket according to claim 1, characterized in that, The contact portion includes a connecting bridge disposed in the middle of the contact portion. A first riveting portion extends horizontally on the left side of the connecting bridge in a direction parallel to the fixing portion. The first riveting portion is used to rivet a silver dot at the left end of the contact portion. A second riveting portion extends horizontally on the right side of the connecting bridge in a direction parallel to the fixing portion. The second riveting portion is used to rivet a silver dot at the right end of the contact portion.

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