Reset switch

By designing a multi-pin and brush blade structure in the reset switch, combining the torsion spring and the reset knob, multiple reset modes and automatic reset functions are realized, solving the problems of insufficient reliability and inconvenient operation of the traditional reset switch, providing an additional Flexible, reliable and convenient reset solution.

CN222146065UActive Publication Date: 2024-12-10SHENZHEN JINERTAI ELECTRONICS CO LTD
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Patent Information

Application Number
CN202420129582.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-01-18
Publication Date
2024-12-10
Estimated Expiration
2034-01-18

AI Technical Summary

Technical Problem

The traditional reset switch electrical connection structure is simple, resulting in insufficient reliability, single reset mode and inconvenient operation, especially in scenarios where multiple reset modes and automatic reset functions are required.

Method used

A reset switch is designed to form a space between the base and the upper cover, multiple pins and brush pieces are set, combined with a torsion spring and reset knob to realize the conduction and automatic reset functions of multiple reset modes, including pressing , turn left, turn right, etc., the five pins are turned on between different positions and automatically reset after the driving force is withdrawn.

Benefits of technology

It improves the flexibility, reliability and operational convenience of reset switches, is suitable for reset needs of various circuits and equipment, avoids manual reset steps, and enhances the durability and efficiency of equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a reset switch, and relates to the technical field of coding switches. A space is formed between the base and the upper cover; five independent pins are arranged on two symmetrical sides of the base and extend into the space; an electric brush piece, a supporting block and a torsion spring are sequentially arranged in the space from bottom to top. The other end of the torsion spring is connected with the upper cover; the lower end of the reset knob extends to the lower end of the supporting block. The electric brush sheet can synchronously rotate along with the reset knob; when the reset knob is in a pressed position, the first pin and the second pin are conducted; and the reset knob is rotated to enable the third pin and the fourth pin to be conducted or the third pin and the fifth pin to be conducted. Through the reset switch structure, multiple reset modes are realized in one reset switch, so that the reset switch has the characteristics of being more flexible, reliable, durable and convenient, and is suitable for scenes in which reset operation needs to be carried out in various circuits or equipment.
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Description

Technical Field

[0001] The utility model relates to the technical field of reset switches, in particular to a reset switch. Background Art

[0002] A reset switch is a common electrical switch, usually used to reset or clear a circuit or device to restore it to its initial state. It usually has two positions, one is the normal position and the other is the pressed position. The pressed position can disconnect the circuit to achieve the purpose of resetting. The working principle of the reset switch is to achieve the opening and closing of the circuit through mechanical contact. When the reset switch is in the normal position, the contact point is closed and the circuit is connected; when the reset switch is pressed, the contact point is disconnected and the circuit is disconnected.

[0003] Reset switches are commonly used in various electronic devices and circuits, such as computers, home appliances, communication equipment, etc. It is often used to clear faults, reset counters, restore default settings, etc. In some cases, the reset switch can also be used to control the power switch, start the motor, etc.

[0004] The conventional reset switches currently have the following technical problems: (1) the electrical connection structure is too simple, which may lead to insufficient reliability; (2) the reset mode is single, and generally can only be reset by pressing and releasing; (3) in some reset switches, the switch needs to be reset manually, which is inconvenient to operate. Utility Model Content

[0005] In order to overcome the above problems or at least partially solve the above problems, an embodiment of the utility model provides a reset switch, which enables multiple reset modes to be implemented in one reset switch, making it more flexible, reliable, durable and convenient, and suitable for scenarios where reset operations are required in various circuits or devices.

[0006] The embodiment of the utility model is achieved as follows:

[0007] The embodiment of the present application provides a reset switch, which includes:

[0008] A space is formed between the base and the upper cover; one of the two symmetrical sides of the base is provided with an independent first pin and a second pin, and the other side is provided with a third pin, a fourth pin and a fifth pin; the five pins all extend into the space;

[0009] In the space, a brush sheet, a support block and a torsion spring are arranged in sequence from bottom to top; one end of the torsion spring abuts against the support block, and the other end abuts against the upper cover;

[0010] A reset knob, the upper end of which is located above the upper cover, the lower end of which can rotate through the upper cover and connect to the middle of the support block, and the end of the lower end of which extends to the lower end of the support block; the brush sheet can rotate synchronously with the reset knob;

[0011] When the reset knob is in the pressed position, the first pin and the second pin are connected; when the reset knob is turned to the left position, the third pin and the fourth pin are connected through the brush sheet, and when the reset knob is turned to the right position, the third pin and the fifth pin are connected through the brush sheet; when the driving force for pressing and rotating the reset knob is removed, the reset knob is automatically reset, and the five pins are not connected to each other.

[0012] In some embodiments of the present invention, the lower end of the reset knob extends to the lower end of the support block and abuts against the pot piece;

[0013] One side of the brush sheet has a first sector surface; and the first sector surface can rotate with the rotation of the reset knob;

[0014] When the reset knob is in the pressed position, the first pin and the second pin are connected through the pot piece; when the reset knob is turned to the left position, the third pin and the fourth pin are connected through the first fan surface; when the reset knob is turned to the right position, the third pin and the fifth pin are connected through the first fan surface.

[0015] In some embodiments of the utility model, a circular groove is provided in the base, and square grooves are provided on both sides of the circular groove where no pins are provided on the base;

[0016] The second pin is electrically connected to a first conductor area arranged in the middle of the circular groove, and the first pin is electrically connected to a second conductor area, wherein the second conductor area at least partially surrounds the first conductor area; the third pin is electrically connected to first electrode claws in two square grooves, wherein the square groove on one side is provided with a second electrode claw side by side with the first electrode claw, wherein the square groove on the other side is provided with a third electrode claw side by side with the first electrode claw, the second electrode claw is electrically connected to the fifth pin, and the third electrode claw is electrically connected to the fourth pin; the first electrode claw and the third electrode claw, as well as the first electrode claw and the second electrode claw are all located on the rotation track of the first sector, and can be electrically connected through the first sector;

[0017] The first conductor area and the second conductor area are provided with pot pieces at the upper ends, and the pot pieces are electrically connected to the second conductor area.

[0018] In some embodiments of the present invention, the central angle of the first sector is 90°.

[0019] In some embodiments of the utility model, the support block has a protruding edge at its edge, and a rotating hole is provided in its middle; one end of the torsion spring abuts against the protruding edge;

[0020] A hollow cylinder is provided in the middle of the upper cover; the reset knob has a knob end at the upper end of the hollow cylinder, and an extended end at the lower end passes through the hollow cylinder and is adapted to be connected with the rotating hole; a pressing block is also provided between the extended end and the pot piece, and the upper end of the pressing block is at least partially located in the rotating hole and connected to the extended end.

[0021] In some embodiments of the present invention, at least a portion of the knob end is a polygonal cylinder or an incomplete cylinder.

[0022] In some embodiments of the present invention, the metal piece in the reset switch is made of copper, and at least the exposed portion has a nickel-plated layer.

[0023] Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects:

[0024] A space is formed between the base and the upper cover; one of the two symmetrical sides of the base is provided with an independent first pin and a second pin, and the other side is provided with a third pin, a fourth pin and a fifth pin; the five pins all extend into the space; in the space, a brush sheet, a support block and a torsion spring are provided in sequence from bottom to top; one end of the torsion spring abuts against the support block, and the other end abuts against the upper cover; the reset knob, the upper end of which is located above the upper cover, the lower end of which can rotate through the upper cover and connect to the middle of the support block, and the end of the lower end extends to the lower end of the support block; the brush sheet can rotate synchronously with the reset knob; when the reset knob is in the pressed position, the first pin and the second pin are connected; when the reset knob is turned to the left position, the third pin and the fourth pin are connected through the brush sheet, and when the reset knob is turned to the right position, the third pin and the fifth pin are connected through the brush sheet; when the driving force for pressing and rotating the reset knob is removed, the reset knob is automatically reset, and the five pins are not connected to each other. Through the above reset switch structure, multiple reset modes can be realized in one reset switch, and the reset switch can solve some defects of traditional reset switches, such as single reset mode, manual reset and other problems, making it more flexible, reliable, durable and convenient, and suitable for scenarios where reset operations are required in various circuits or devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 This is a schematic diagram of the top view structure of a reset switch provided in one embodiment of the utility model;

[0027] Figure 2 This is a schematic diagram of the disassembled components of a reset switch provided in one embodiment of the utility model;

[0028] Figure 3 This is a schematic diagram of the internal hardware structure of a reset switch provided in one embodiment of the utility model;

[0029] Figure 4 The figure is a schematic cross-sectional structure diagram of a reset switch provided in one embodiment of the utility model.

[0030] In the figure: 1, base; 3, pot piece; 4, brush piece; 5, support block; 6, torsion spring; 7, upper cover; 8, reset knob; 20, first pin; 21, second pin; 22, third pin; 23, fourth pin; 24, fifth pin; 25, first conductor area; 26, second conductor area; 27, first electrode claw; 28, second electrode claw; 29, third electrode claw; 51, rotating hole; 52, raised edge; 71, hollow cylinder; 81, knob end; 82, extended end; 83, pressing block. DETAILED DESCRIPTION

[0031] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be understood that the references to "one embodiment" or "an embodiment" throughout the specification mean that the specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present invention. Therefore, the references to "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0033] It should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. The terms used in the description of the present invention are only for describing specific embodiments and are not intended to limit the present invention.

[0035] Example 1

[0036] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0037] Please refer to Figures 1 to 4 As shown, the embodiment of the utility model provides a reset switch, wherein a space is formed between a base 1 and an upper cover 7; one of the two symmetrical sides of the base 1 is provided with an independent first pin 20 and a second pin 21, wherein the other side is provided with a third pin 22, a fourth pin 23 and a fifth pin 24; the five pins all extend into the space; in the space, a brush sheet 4, a support block 5 and a torsion spring 6 are provided in sequence from bottom to top; one end of the torsion spring 6 abuts against the support block 5, and the other end abuts against the upper cover 7; the upper end of the reset knob 8 is located above the upper cover 7, and the lower end of the reset knob 8 can be rotated through the upper cover 7 and It is connected to the middle part of the support block 5, and its lower end extends to the lower end of the support block 5; the brush sheet 4 can rotate synchronously with the reset knob 8; when the reset knob 8 is in the pressed position, the first pin 20 and the second pin 21 are connected; when the reset knob 8 is turned to the left position, the third pin 22 and the fourth pin 23 are connected through the brush sheet 4, and when the reset knob 8 is turned to the right position, the third pin 22 and the fifth pin 24 are connected through the brush sheet 4; when the force of pressing and rotating the reset knob 8 is removed, the reset knob 8 is automatically reset, and the five pins are not connected to each other.

[0038] In this embodiment, the reset function is realized through innovative structural design through components such as the base 1, the upper cover 7, the brush sheet 4, the support block 5, the torsion spring 6, etc. Compared with the traditional simple electrical contact method, the present application can provide a more reliable reset performance; and the above-mentioned reset switch of the present application has a variety of reset modes. Through the different positions of the reset knob, conduction between different pins can be achieved, which can meet the reset requirements of different circuits or devices and provide a more flexible application method; when the driving force for pressing and rotating the reset knob is removed, the reset knob 8 will automatically restore the original default state. The automatic reset structure can improve the convenience and efficiency of operation, eliminate the manual reset step, and reduce the user's operating burden.

[0039] Example 2

[0040] The utility model embodiment provides a reset switch, referring to Figures 1 to 4 As shown, a space is formed between a base 1 and an upper cover 7; one of the two symmetrical sides of the base 1 is provided with an independent first pin 20 and a second pin 21, and the other side is provided with a third pin 22, a fourth pin 23 and a fifth pin 24; in the space, a brush sheet 4, a support block 5 and a torsion spring 6 are arranged in sequence from bottom to top; one end of the torsion spring 6 abuts against the support block 5, and the other end abuts against the upper cover 7; a reset knob 8, the upper end of which is located above the upper cover 7, the lower end of which can rotate through the upper cover 7 and is connected to the middle of the support block 5, and the end of the lower end is elastically connected to the pot The pot piece 3; one side of the brush piece 4 has a first fan surface; and the first fan surface can rotate with the rotation of the reset knob 8; when the reset knob 8 is in the pressed position, the first pin 20 and the second pin 21 are connected through the pot piece 3; when the reset knob 8 is turned to the left position, the third pin 22 and the fourth pin 23 are connected through the first fan surface, and when the reset knob 8 is turned to the right position, the third pin 22 and the fifth pin 24 are connected through the first fan surface; when the driving force for pressing and rotating the reset knob 8 is removed, the reset knob 8 is automatically reset.

[0041] Through the above-mentioned pot piece 3, when the reset knob 8 is pressed, the end of the lower end causes the pot piece 3 to be deformed, and the first pin 20 and the second pin 21 extending into the space are electrically connected. When the above-mentioned reset knob 8 is released, the pot piece 3 itself has elasticity and can automatically recover, thereby disconnecting the first pin 20 and the second pin 21. When in use, after connecting to the circuit, a signal from disconnection to connection and / or from connection again can be given to the circuit, which can be used as a jump signal or as two jump signals. The specific signal can be determined according to the circuit used.

[0042] In addition, the connection relationship between the third pin 22, the fourth pin 23 and the fifth pin 24 is similar. When the reset knob 8 is rotated to the left, for example, rotated 90°, the third pin 22 and the fourth pin 23 are electrically connected in the space through the first fan surface of the brush sheet 4, so that they are turned on. When released, the first fan surface returns to its original position under the action of the torsion spring 6, so that the electrical connection between the third pin 22 and the fourth pin 23 is disconnected; when the reset knob 8 is rotated to the right, similar to the right, the third pin 22 and the fifth pin 24 are turned on.

[0043] It should be noted that the length of the lower end of the reset knob 8 is slightly longer than the internal height when the upper cover 7 and the support block 5 are installed together, so as to ensure that the reset knob 8 has a height that can be pressed downward.

[0044] In a preferred embodiment, reference Figure 1 Shown and Figure 3 As shown, a circular groove 13 is provided in the base 1, and square grooves 12 are provided on the edges of the circular groove 13 on both sides of the base 1 where no pins are provided; the second pin 21 is electrically connected to a first conductor area 25 provided in the middle of the circular groove 13, and the first pin 20 is electrically connected to a second conductor area 26, wherein the second conductor area 26 at least partially surrounds the first conductor area 25; the third pin 22 is electrically connected to first electrode claws 27 in two square grooves 12, wherein the square groove 12 on one side is provided with a second electrode claw 28 side by side with the first electrode claw 27, wherein The square groove 12 on the other side is provided with a third electrode claw 29 side by side with the first electrode claw 27, the second electrode claw 28 is electrically connected to the fifth pin 24, and the third electrode claw 29 is electrically connected to the fourth pin 23; the first electrode claw 27 and the third electrode claw 29, as well as the first electrode claw 27 and the second electrode claw 28 are all located on the rotation trajectory of the first fan surface, and can be electrically connected through the first fan surface; a pot piece 3 is provided at the upper end of the first conductor area 25 and the second conductor area 26, and the pot piece 3 is electrically connected to the second conductor area 26.

[0045] Further preferably, the central angle of the first sector is 90°. With a larger central angle, when the third pin 22 needs to be connected to the other two pins, the rotation angle of the reset knob 8 can be reduced, thereby avoiding the problem of insufficient elastic force caused by excessive deformation of the torsion spring 6. In addition, the brush sheet 4 may further be provided with a second sector face with a relatively small central angle on the opposite side of the first sector face, for example, a second sector face with a central angle of 45° may be provided, so that the third pin 22 can be simultaneously connected with the fourth pin 23 and the fifth pin 24. Specifically, for example, when the first sector face is rotated to be electrically connected with the first electrode claw 27 and the second electrode claw 28, at this time, the second sector face, due to a smaller central angle than the first sector face, makes the first electrode claw 27 and the third electrode claw 29 contact the second sector face. When the rotation continues, the first electrode claw 27 and the third electrode claw 29 can be contacted and connected through the second sector face, while the first electrode claw 27 and the second electrode claw 28 still maintain contact and connection with the first sector face. That is, when the rotation angle is small, the third pin 22 can be connected with one of the fourth pin 23 and the fifth pin 24. When the rotation angle is large, the three pins are connected. When released, the three pins are reset and are not connected to each other.

[0046] It should also be noted that a larger central angle can be set, and the position of the corresponding electrode claw can be adjusted so that the above-mentioned third pin 22 remains connected to the fourth pin 23 or the fifth pin 24. When rotating, it switches to a pin behind the connection and the front pin is disconnected, which is equivalent to making the third pin 22 and the fourth pin 23 or the fifth pin 24 form a switch with normally open and normally closed, and can be automatically reset; the third pin 22 in the middle is used as a common end. Initially, the pin is electrically connected to one of the fourth pin 23 or the fifth pin 24 as normally closed, and the other is normally open. When the reset knob 8 is turned, the state is switched.

[0047] Example 3

[0048] The utility model embodiment provides a reset switch, wherein, referring to Figure 1 The support block 5 has a raised edge 52 on its edge and a rotating hole 51 in its middle; the torsion spring 6 has one end abutting against the raised edge 52 and the other end abutting against the upper cover 7; a hollow cylinder 71 is provided in the middle of the upper cover 7; the reset knob 8 has a knob end 81 at its upper end located at the upper end of the hollow cylinder 71, and an extended end 82 at its lower end passes through the hollow cylinder 71 and is adapted to be connected with the rotating hole 51; a pressing block 83 is also provided between the extended end 82 and the pot piece 3, and the upper end of the pressing block 83 is at least partially located in the rotating hole 51 and connected with the extended end 82.

[0049] In a preferred embodiment, reference Figures 1 to 4The knob end 81 is at least partially a polygonal cylinder or an incomplete cylinder. By setting the knob end 81 as a polygonal cylinder or an incomplete cylinder, a larger knob can be better sleeved and fixed, which is convenient for the screwing operation.

[0050] Further preferably, the metal parts in the reset switch are made of copper, and at least the exposed parts have a nickel plating layer. The first pin 20, the second pin 21, the third pin 22, the fourth pin 23 and the fifth pin 24 can be nickel-plated to protect the exposed pins and have a certain anti-rust ability. On the other hand, nickel plating can also make these pins easier to weld. The use of copper materials for the internal hardware can reduce the internal resistance, and nickel plating can also further protect them.

[0051] Example 4

[0052] Based on the same concept, the utility model also discloses an electronic device, which uses the reset switch as mentioned above.

[0053] It should be noted that each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referred to each other. Although optional embodiments of the utility model embodiments have been described, once those skilled in the art know the basic creative concept, they can make additional changes and modifications to these embodiments. Therefore, the attached claims are intended to be interpreted as including optional embodiments and all changes and modifications that fall within the scope of the utility model embodiments.

[0054] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between these entities. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that an article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such article or terminal device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the article or terminal device including the elements.

[0055] The technical solution provided by the present invention is introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation method of the present invention. At the same time, for those skilled in the art, according to the principle and implementation method of the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A reset switch, characterized in that: include: A space is formed between the base (1) and the upper cover (7); one of the two symmetrical sides of the base (1) is provided with an independent first pin (20) and a second pin (21), and the other side is provided with a third pin (22), a fourth pin (23) and a fifth pin (24); the five pins all extend into the space; In the space, a brush sheet (4), a support block (5) and a torsion spring (6) are arranged in sequence from bottom to top; one end of the torsion spring (6) abuts against the support block (5), and the other end of the torsion spring (6) abuts against the upper cover (7); A reset knob (8), the upper end of which is located above the upper cover (7), the lower end of which can rotate through the upper cover (7) and connect to the middle of the support block (5), and the end of the lower end extends to the lower end of the support block (5); the brush sheet (4) can rotate synchronously with the reset knob (8); When the reset knob (8) is in a pressed position, the first pin (20) and the second pin (21) are connected; when the reset knob (8) is turned to the left position, the third pin (22) and the fourth pin (23) are connected via the brush sheet (4); when the reset knob (8) is turned to the right position, the third pin (22) and the fifth pin (24) are connected via the brush sheet (4); when the driving force for pressing and rotating the reset knob (8) is removed, the reset knob (8) is automatically reset, and the five pins are not connected to each other.

2. The reset switch according to claim 1, characterized in that: The lower end of the reset knob (8) extends to the lower end of the support block (5) and abuts against the pot piece (3); One side of the brush sheet (4) has a first fan surface; and the first fan surface can rotate with the rotation of the reset knob (8); When the reset knob (8) is in the pressed position, the first pin (20) and the second pin (21) are connected via the pot piece (3); when the reset knob (8) is turned to the left position, the third pin (22) and the fourth pin (23) are connected via the first fan surface; when the reset knob (8) is turned to the right position, the third pin (22) and the fifth pin (24) are connected via the first fan surface.

3. The reset switch according to claim 2, characterized in that: A circular groove (13) is provided in the base (1), and square grooves (12) are provided on both sides of the edges of the circular groove (13) where no pins are provided on the base (1); The second pin (21) is electrically connected to a first conductor area (25) arranged in the middle of the circular groove (13), and the first pin (20) is electrically connected to a second conductor area (26), wherein the second conductor area (26) at least partially surrounds the first conductor area (25); the third pin (22) is electrically connected to first electrode claws (27) in two square grooves (12), wherein the square groove (12) on one side is provided with a second electrode claw (28) side by side with the first electrode claw (27), and the square groove (12) on the other side is provided with a third electrode claw (29) side by side with the first electrode claw (27), the second electrode claw (28) is electrically connected to the fifth pin (24), and the third electrode claw (29) is electrically connected to the fourth pin (23); the first electrode claw (27) and the third electrode claw (29), as well as the first electrode claw (27) and the second electrode claw (28) are all located on the rotation track of the first sector and can be electrically connected through the first sector; A pot piece (3) is provided at the upper end of the first conductor area (25) and the second conductor area (26), and the pot piece (3) is electrically connected to the second conductor area (26).

4. The reset switch according to claim 2, characterized in that: The central angle of the first sector is 90°.

5. The reset switch according to claim 2, characterized in that: The support block (5) has a raised edge (52) on its edge and a rotation hole (51) in its center; one end of the torsion spring (6) abuts against the raised edge (52); A hollow cylinder (71) is provided in the middle of the upper cover (7); the reset knob (8) has an upper knob end (81) located at the upper end of the hollow cylinder (71), and an extended end (82) at the lower end passes through the hollow cylinder (71) and is adaptively connected to the rotating hole (51); a pressing block (83) is also provided between the extended end (82) and the pot piece (3), and the upper end of the pressing block (83) is at least partially located in the rotating hole (51) and connected to the extended end (82).

6. The reset switch according to claim 5, characterized in that: The knob end (81) is at least partially a polygonal cylinder or an incomplete cylinder.

7. The reset switch according to any one of claims 1 to 6, characterized in that: The metal part in the reset switch is made of copper, and at least the exposed part has a nickel-plated layer.