Microswitch capable of eliminating elasticity attenuation of elastic sheet

Abstract

The utility model discloses a microswitch for eliminating elastic attenuation of an elastic sheet, which comprises a shell (10), a movable reed (20), a pressing piece (30), a terminal (40) and a common terminal (50), the shell (10) comprises an upper cover (11) and a base (12) which are mutually fixed, the movable reed (20) is arranged in the shell (10), the movable reed (20) is divided into a movable reed movable end (21) and a movable reed fixed end (22), and the movable reed movable end (21) and the movable reed fixed end (22) are connected with the pressing piece (30). The movable end (21) of the movable contact spring is provided with a first magnetic piece (60), the base (12) is provided with a second magnetic piece (70), and the first magnetic piece (60) is located right above the second magnetic piece (70) and mutually repels the second magnetic piece (70). According to the utility model, the two mutually repulsive magnets are arranged between the movable end of the movable contact spring and the base and are used for eliminating the elastic force of the movable end of the movable contact spring, so that the use hand feeling of a mouse using the microswitch is ensured, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of micro switches, in particular to a micro switch capable of eliminating the attenuation of elastic force of a spring sheet. Background Art

[0002] The micro switch mainly closes and connects the switch function by applying pressure in the switch operating direction when the operating force conditions are met during use. When the pressure is removed, the switch is disconnected. Its internal structure relies on the force change of the metal spring to achieve on and off.

[0003] Chinese utility model patent ZL202021338707.0 discloses a micro switch, including a housing, a moving spring, a pressing piece, a terminal and a common terminal. The housing includes an upper cover and a base fixed to each other. The moving spring is arranged in the housing. The moving spring is divided into a moving end of the moving spring and a fixed end of the moving spring. The common terminal is provided with a first boss for clamping the fixed end of the moving spring in the housing. The moving spring is provided with an arc-shaped spring between the fixed end of the moving spring and the moving end of the moving spring. One end of the arc-shaped spring is fixed to one side of the moving end of the moving spring, and the other end is a moving end. The common terminal is provided with a second boss for clamping the arc-shaped spring, and the moving end of the arc-shaped spring is clamped on the second boss. A pressing piece in dynamic contact with the moving spring is provided between the first boss and the second boss, and the pressing piece passes through the upper cover. If the user applies external force to the pressing piece for a long time and multiple times, the rebound force of the moving end of the moving spring will slowly decay, making the feel of the mouse using the micro switch weaker and weaker. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a micro switch which eliminates the attenuation of the elastic force of the spring by adding two mutually repelling magnets.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A micro switch for eliminating the attenuation of the elastic force of a spring sheet comprises a housing, a moving spring sheet, a pressing member, a terminal and a common terminal. The housing comprises an upper cover and a base fixed to each other. The moving spring sheet is arranged in the housing. The moving spring sheet is divided into a moving spring sheet movable end and a moving spring sheet fixed end. A first magnetic member is arranged on the moving spring sheet movable end. A second magnetic member is arranged on the base. The first magnetic member is located directly above the second magnetic member and repel each other.

[0007] Furthermore, the first magnetic component and the second magnetic component are both permanent magnets.

[0008] Furthermore, the base is provided with a mounting groove, and the second magnetic component is accommodated in the mounting groove.

[0009] Furthermore, a clamping member is disposed on the movable end of the movable spring piece, and the clamping member has a clamping space for clamping the first magnetic member.

[0010] Furthermore, a mounting hole is provided on the movable end of the movable spring piece, and the clamping member is clamped on the mounting hole through two buckles.

[0011] Furthermore, the clamping member includes a clamping body and two buckles arranged opposite to each other on the lower surface of the clamping body, and the clamping space is arranged between the two buckles.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] Due to the above structural design, two mutually repelling magnets are arranged between the movable end of the moving spring and the base to eliminate the elastic force of the movable end of the moving spring, thereby ensuring the feel of the mouse using the micro switch and improving its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Attached Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0015] Attached Figure 2 It is a schematic diagram of the exploded structure of an embodiment of the utility model;

[0016] Attached Figure 3 It is a schematic structural diagram of the clamping member according to an embodiment of the utility model.

[0017] The numbers in the figure are:

[0018] 10-housing, 20-moving spring, 30-pressing member, 40-terminal, 50-common terminal, 60-first magnetic member, 70-second magnetic member;

[0019] 11-upper cover, 12-base;

[0020] 21-movable end of the moving reed, 22-fixed end of the moving reed;

[0021] 121-installation slot;

[0022] 211-clamping member, 212-mounting hole;

[0023] 2111-clamping body, 2112-buckle, 2113-clamping space. DETAILED DESCRIPTION

[0024] The utility model is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be pointed out that for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the utility model. These all fall within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Example

[0026] See also Figure 1 and Figure 2 The utility model discloses a micro switch for eliminating spring attenuation, comprising a housing 10, a moving spring 20, a pressing member 30, a terminal 40 and a common terminal 50. The housing 10 comprises an upper cover 11 and a base 12 fixed to each other. The moving spring is arranged in the housing. The moving spring 20 is divided into a moving spring movable end 21 and a moving spring fixed end 22. The common terminal is provided with a first boss for clamping the fixed end of the moving spring in the housing. The moving spring is provided with an arc-shaped spring between the fixed end of the moving spring and the moving end of the moving spring. One end of the arc-shaped spring is fixed to one side of the moving end of the moving spring, and the other end is the moving end. The common terminal is provided with a second boss for clamping the arc-shaped spring, and the moving end of the arc-shaped spring is clamped on the second boss. A pressing member that is in dynamic contact with the moving spring is provided between the first boss and the second boss, and the pressing member passes through the upper cover. The above structural design is a prior art.

[0027] In this embodiment, a first magnetic component 60 is provided on the movable end 21 of the movable spring piece, and a second magnetic component 70 is provided on the base 12. The first magnetic component 60 and the second magnetic component 70 are both permanent magnets. The first magnetic component 60 is located directly above the second magnetic component 70 and repel each other, that is, the magnetic pole of the first magnetic component 60 facing the second magnetic component 70 is the first magnetic pole, and the magnetic pole of the second magnetic component 70 facing the first magnetic component 60 is the second magnetic pole. The polarity of the first magnetic pole is the same as that of the second magnetic pole, which is the S pole or the N pole.

[0028] When the utility model is working, when the pressing member 30 presses the movable spring 20, the movable end 21 of the movable spring moves in the direction away from the base 12; and after the movable spring 20 is separated from the action of the pressing member 30, the movable end 21 of the movable spring is reset by its own action, and because the first magnetic member 60 of the movable end 21 of the movable spring and the second magnetic member 70 on the base 12 repel each other, the movable end 21 of the movable spring can be assisted to reset, so as to eliminate the problem of attenuation of the elastic force of the movable spring; therefore, even if the user applies external force to the pressing member 30 for a long time and multiple times, and the movable end 21 of the movable spring is bent multiple times, its elastic force will not gradually decay, so that the hand feeling of using the mouse using the micro switch will not become weaker and weaker.

[0029] The base 12 is provided with a mounting groove 121 , and the second magnetic member 60 is accommodated in the mounting groove 121 .

[0030] A clamping member 211 is disposed on the movable end 21 of the movable spring. The clamping member 211 has a clamping space 2113 for clamping the first magnetic member 60 .

[0031] The movable end 21 of the movable spring is provided with a mounting hole 212 , and the clamping member 211 is clamped on the mounting hole 212 via two buckles 2112 .

[0032] The clamping member 211 includes a clamping body 2111 and two buckles 1223 disposed opposite to each other on the lower surface of the clamping body 2111 . The clamping space 2113 is disposed between the two buckles 2112 .

[0033] In summary, the present invention solves the deficiencies in the prior art through the above-mentioned structural design, and has the characteristics of reasonable structure, long service life, etc.

[0034] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A micro switch for eliminating elastic force attenuation of a spring, comprising a housing (10), a moving spring (20), a pressing member (30), a terminal (40) and a common terminal (50), the housing (10) comprising an upper cover (11) and a base (12) fixed to each other, the moving spring (20) being arranged in the housing (10), the moving spring (20) being divided into a moving spring movable end (21) and a moving spring fixed end (22), characterized in that: A first magnetic component (60) is disposed on the movable end (21) of the movable spring piece, and a second magnetic component (70) is disposed on the base (12). The first magnetic component (60) is located directly above the second magnetic component (70) and repel each other.

2. The micro switch for eliminating the attenuation of the elastic force of the spring as claimed in claim 1, characterized in that: The first magnetic component (60) and the second magnetic component (70) are both permanent magnets.

3. The micro switch for eliminating the attenuation of the elastic force of the spring as claimed in claim 1, characterized in that: The base (12) is provided with a mounting groove (121), and the second magnetic component (70) is accommodated in the mounting groove (121).

4. The micro switch for eliminating the attenuation of the elastic force of the spring as claimed in claim 3, characterized in that: A clamping piece (211) is provided on the movable end (21) of the movable spring piece, and the clamping piece (211) has a clamping space (2113) for clamping the first magnetic piece (60).

5. The micro switch for eliminating the attenuation of the elastic force of the spring as claimed in claim 4, characterized in that: A mounting hole (212) is provided on the movable end (21) of the movable spring piece, and the clamping piece (211) is clamped on the mounting hole (212) via two buckles (2112).

6. The micro switch for eliminating the attenuation of the elastic force of the spring as claimed in claim 5, characterized in that: The clamping member (211) comprises a clamping body (2111) and two buckles (2112) arranged opposite to each other on the lower surface of the clamping body (2111), and the clamping space (2113) is arranged between the two buckles (2112).

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