CN220914077U - Micro-switch - Google Patents

Abstract

The utility model discloses a micro switch, which comprises a shell, a first pin sheet, a second pin sheet and a third pin sheet, wherein the first pin sheet, the second pin sheet and the third pin sheet are arranged on the shell, a first static contact part is arranged at the upper end of the second pin sheet, a second static contact part is arranged at the position, opposite to the first static contact part, of the third pin sheet, a button and a pressing rod for driving the button to press down are also arranged, a first barb part, a second barb part and a groove positioned between the two barb parts are arranged on the first pin sheet, a movable contact, a first slot, a second slot and a pressing part positioned between the two slots are also arranged on the movable contact, and the first barb part is positioned in the first slot and limits one end of the movable contact to rotate. The utility model has simple structure, reasonable design, stable electric contact, quick and sensitive reflection and more reasonable overall layout.

Description

Micro-switch

Technical Field

The utility model relates to the technical field of micro-switches, in particular to a micro-switch.

Background

CN116368591a discloses a microswitch, and an object of the present invention is to sufficiently make frictional contact with a contact surface at the time of switching contacts, thereby peeling off an insulating coating on the contact surface. The microswitch 1 is provided with: a movable member 6 having a movable contact 6a at one end capable of contacting the first and second fixed contacts 5b and 4b arranged in a spaced-apart manner and fixed to the base 2, and having the other end swingably supported by the support frame 30; an actuator 7 for reversing the movable member 6 to move the movable contact 6 from the first fixed contact 5b side to the second fixed contact 4b side; and a tension spring 8 that applies a tension force to one end of the movable member 6. The support frames 30 are disposed on both sides so as to sandwich the tension springs 8, the first end portions 30A1 of the support frames 30 on one side of the tension springs 8 are fixed to the base 2, and the second end portions 30B1 of the support frames 30 on the other side of the tension springs 8 are not fixed to the base 2.

However, the above micro-switch has a complex structure and a plurality of parts, which is not beneficial to actual mass production.

Disclosure of Invention

The utility model overcomes the defects of the prior art, and provides the micro switch which has the advantages of simple structure, reasonable design, stable electric contact, quick and sensitive reflection and more reasonable overall layout.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The utility model provides a micro-gap switch, including the shell, locate first pin piece on the shell, second pin piece and third pin piece, the upper end of second pin piece is equipped with first static contact portion, the position that third pin piece is relative with first static contact portion is equipped with second static contact portion, still include button and the depression bar that drive button pushed down, be equipped with first barb portion on the first pin piece, second barb portion and be located the recess between two barb portions, still including the movable contact piece, be equipped with the movable contact on the movable contact piece, first fluting, the second fluting and be located the butt portion between two flutings, first barb portion is arranged in first fluting and is located first barb portion with the one end rotation limit of movable contact piece, second barb portion can be arranged in the second fluting, the one end that the second fluting is close to the movable contact is fixed or is integrally provided with the shell fragment, the other end of shell fragment is spacing in second barb portion, the button is just set up to the top of butt portion.

Preferably, the first pin piece is provided with a limit groove below the second barb portion.

Preferably, a limiting block which is arranged opposite to the compression bar is arranged on the shell.

The utility model has the beneficial effects that:

The utility model has simple structure, reasonable design, stable electric contact, quick and sensitive reflection and more reasonable overall layout.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a schematic view showing the structure of the inside of the shell according to the embodiment of the present utility model;

FIG. 3 is a schematic diagram of a second pin sheet and a third pin sheet according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a first pin sheet according to an embodiment of the present utility model;

FIG. 5 is a schematic diagram showing a structure of a movable contact according to an embodiment of the present utility model;

Fig. 6 is a schematic diagram showing a structure of a movable contact according to an embodiment of the utility model.

In the figure: 1. a housing; 11. a limiting block; 2. a first pin sheet; 21. a first barb portion; 22. a second barb portion; 23. a groove; 24. a limit groove; 3. a second pin piece; 31. a first stationary contact; 4. a third pin piece; 41. a second stationary contact; 5. a button; 6. a compression bar; 7. a movable contact; 71. a movable contact; 72. a first slot; 73. a second slot; 74. a pressing part; 8. and the elastic sheet.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-6, a micro switch comprises a housing 1, a first pin piece 2, a second pin piece 3 and a third pin piece 4 which are arranged on the housing 1, wherein a first static contact part 31 is arranged at the upper end of the second pin piece 3, a second static contact part 41 is arranged at the position, opposite to the first static contact part 31, of the third pin piece 4, a push rod 6 for driving the push button 5 to be pressed down is further included, a first barb part 21, a second barb part 22 and a groove 23 positioned between the two barb parts are arranged on the first pin piece 2, a movable contact 7 is further included, a movable contact 71, a first slot 72, a second slot 73 and a pressing part 74 positioned between the two slots are arranged on the movable contact 7, the first barb part 21 is positioned in the first slot 72 and limits one end of the movable contact 7 to rotate and is positioned in the first barb part 21, the second barb part 22 can be positioned in the second slot 73, one end, close to the movable contact 71, of the second slot 73 is fixedly or integrally provided with an elastic sheet 8, and the other end, close to the movable contact 71, of the elastic sheet 8 is positioned right above the second barb part 22 and is pressed by the second barb part 74; the first pin sheet 2 is positioned below the second barb portion 22 and provided with a limit groove 24; the shell is provided with a limiting block 11 which is arranged opposite to the compression bar 6.

By adopting the above technical scheme, in the utility model, by arranging the first barb portion 21, the second barb portion 22 and the groove 23, when the button 5 is pressed down, the button 5 can press the pressing portion 74 to the groove 23, and the groove 23 can be used as a yielding space. This drives the movable contact 7 downward, so that the contact position of the movable contact 71 is changed from the original contact with the first stationary contact 31 to the contact with the second contact. And through setting up first fluting 72, first fluting 72 cooperates with first barb portion 21 for movable contact piece 7 can be rotated by first barb portion 21 and spacing, and movable contact piece 7 can regard first barb portion 21 as the rotation fulcrum promptly, along with push button 5's pushing down, movable contact piece 7 is located the one end of movable contact 71 and can realize the downshifting, and removes more rapidly, swiftly, reflects more sensitively. The provision of the second slot 73 not only provides the second barb portion 22 with a space for letting down, but also facilitates the provision of the spring plate 8, and the other end of the spring plate 8 is limited by the second barb portion 22, so that the spring plate 8 can provide a restoring force for the movable contact 7. The limiting groove 24 provides a limiting function of the maximum stroke for the spring plate 8. The limiting block 11 also plays a role in limiting the compression bar 6.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (3)

1. The utility model provides a micro-gap switch, including shell (1), locate first pin piece (2) on shell (1), second pin piece (3) and third pin piece (4), the upper end of second pin piece (3) is equipped with first static contact portion (31), the position that third pin piece (4) is relative with first static contact portion (31) is equipped with second static contact portion (41), still include button (5) and push rod (6) that drive button (5) were pushed down, a serial communication port, be equipped with first barb portion (21) on first pin piece (2), second barb portion (22) and be located recess (23) between two barb portions, still include movable contact piece (7), be equipped with movable contact (71) on movable contact piece (7), first fluting (72), second fluting (73) and be located between two fluting and be located the pressure portion (74) that the position that supports between first static contact portion (31), first barb portion (21) is located first fluting (72) and rotate limit in first barb portion (21), second barb portion (22) are located second barb portion (22) and be located second barb portion (73) and be located movable contact portion (8) and be located movable contact portion (73) and be located movable contact portion (8) and be located fixed one end between two barb portion and 8, the fixed contact portion is located in the fixed contact portion (8), the button (5) is arranged above the pressing part (74).

2. A microswitch according to claim 1, wherein the first pin tab (2) is provided with a limit groove (24) below the second barb (22).

3. A microswitch according to claim 1 or 2, wherein the housing is provided with a stop (11) arranged opposite the pressure lever (6).