Silent button type microswitch

Abstract

The utility model discloses a mute type button microswitch, comprising a pedestal, a shell cover and a contact piece, the shell cover is arranged above the pedestal, a pressing rod piece is arranged on the shell cover in a sliding elevating manner, a dustproof cap is arranged between the pressing rod piece and the shell cover, a spring is arranged between the pressing rod piece and the pedestal, the contact piece is fixedly installed at the lower end of the pressing rod piece, and the contact piece is fixedly installed at the lower end of the pressing rod piece. A fixed connection terminal and an opening terminal are fixedly arranged on the two sides of the base respectively, the base is provided with a closing terminal integrally formed with the base, the closing terminal is provided with a first clamping part used for being connected with the base along the opening terminal, one side of the contact piece is in sliding contact with the fixed connection terminal, and the other side of the contact piece is in sliding contact with the opening terminal. And the other side of the contact piece is in switching contact with the opening terminal and the closing terminal along with the lifting motion of the pressing rod piece. According to the utility model, the structural design is simplified, the stability of the opening terminal and the fixed connection terminal at the base is effectively improved, the installation cost and the material cost of the opening terminal and the fixed connection terminal at the base are greatly reduced, and the assembly process of the microswitch is simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of micro switches, in particular to a silent push-button micro switch. Background Art

[0002] A micro switch, also known as a sensitive switch or a snap-action switch, is a fast switch actuated by pressure. A micro switch is usually provided with a pressure handle, a contact piece, a fixed terminal, and two opening terminals and closing terminals corresponding to connecting and disconnecting the circuit respectively. One end of the contact piece is slidably connected to the fixed terminal, and the pressure handle drives the contact piece to move up and down. The other end of the contact piece switches contact between the opening terminal and the closing terminal. Existing micro switches have many assembly parts. When assembling, the outer shell and the pressure rod must be installed first, and then the terminal assembly must be inserted. The terminal assembly is easy to damage the internal components of the micro switch when inserted. The entire assembly process is relatively cumbersome, and the assembled micro switch has a complex structure and general stability. Therefore, it is necessary to simplify the structural design of the micro switch. To this end, we propose a silent push-button micro switch. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art and provide a silent push-button micro switch.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a silent push-button micro switch, comprising a base, a shell cover, and a contact piece, the shell cover is arranged above the base, a pressure rod is slidably and lifted at the shell cover, a dust cap is arranged between the pressure rod and the shell cover, a spring is arranged between the pressure rod and the base, the contact piece is fixedly installed at the lower end of the pressure rod, a fixed terminal and an open terminal are fixedly arranged on the left and right sides of the base, the base is provided with a closing terminal integrally formed with the base, the closing terminal is arranged at the top of the open terminal, the closing terminal is provided with a first clamping portion for connecting with the base along the open terminal, one side of the contact piece is in sliding contact with the fixed terminal, and the other side of the contact piece switches contact with the open terminal and the closing terminal as the pressure rod moves up and down.

[0005] It is further explained that the base is provided with a second clamping portion along the fixed terminal for connecting with the base.

[0006] It is further explained that the upper end of the pressure rod member is provided with a pressure rod head, and the lower end of the pressure rod member is provided with a receiving cavity for installing the contact piece.

[0007] It is further explained that the contact piece is provided with a first clip portion for switching contact with both the opening terminal and the closing terminal, and the contact piece is provided with a second clip portion for sliding contact with the fixed terminal.

[0008] To further explain, a connecting plate portion is provided between the first clamping piece portion and the second clamping piece portion, a positioning hole is opened at the connecting plate portion, and a positioning protruding rod portion matching with the positioning hole is provided at the lower side of the pressure rod member.

[0009] The beneficial effects of the utility model are as follows: the utility model simplifies the structural design, effectively improves the stability of the opening terminal and the fixing terminal at the base, greatly reduces the installation cost and material cost of the opening terminal and the fixing terminal at the base, and simplifies the assembly process of the micro switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model.

[0011] Figure 2 It is a cross-sectional view of the internal structure of the utility model.

[0012] Figure 3 It is a schematic diagram of the local structure of the utility model at the base.

[0013] Figure 4 It is a structural sectional view of the utility model at the base.

[0014] Figure 5 It is a schematic diagram of the local structure of the utility model at the pressure rod.

[0015] Figure 6 Schematic diagram of the structure of the contact piece.

[0016] Figure 7 It is a schematic diagram of the structure of the utility model when the contact piece is connected to the fixed terminal and the closing terminal.

[0017] Figure 8 It is a schematic diagram of the structure of the utility model when the contact piece is connected to the fixed terminal and the terminal is opened.

[0018] Figure numbers: 10, base; 101, first clamping part; 102, second clamping part; 11, closing terminal; 20, shell cover; 30, contact piece; 31, first clamping piece part; 32, second clamping piece part; 33, connecting plate part; 34, positioning hole; 40, pressure rod; 41, pressure rod head; 42, accommodating cavity; 43, positioning protruding rod part; 50, dust cap; 60, spring; 70, fixed terminal; 80, opening terminal. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0020] Combined with Figure 1 To Attachment Figure 5 As shown, a silent push-button micro switch includes a base 10, a shell cover 20, and a contact piece 30. The shell cover 20 is arranged above the base 10. A pressure rod 40 is slidably provided at the shell cover 20. A dust cap 50 is provided between the pressure rod 40 and the shell cover 20. The dust cap 50 is fixedly provided at the shell cover 20 by riveting. A spring 60 is provided between the pressure rod 40 and the base 10. The contact piece 30 is fixedly installed at the lower end of the pressure rod 40. Figure 3 As shown, the left and right sides of the base 10 are respectively fixedly provided with a fixed terminal 70 and an open terminal 80 , and the base 10 is provided with a closing terminal 11 integrally formed with the base 10 , and the closing terminal 11 is arranged at the top of the open terminal 80 .

[0021] Combined with Figure 3 and attached Figure 4 As shown, the closing terminal 11 is provided with a first clamping portion 101 for connecting with the base 10 along the opening terminal 80, one side of the contact piece 30 is in sliding contact with the fixed terminal 70, and the other side of the contact piece 30 switches contact with both the opening terminal 80 and the closing terminal 11 as the pressure rod 40 moves up and down, and the base 10 is provided with a second clamping portion 102 for connecting with the base 10 along the fixed terminal 70. Before the base 10 is injection molded, the opening terminal 80 and the fixed terminal 70 are pre-installed in the mold. When the base 10 is injection molded, the opening terminal 80 and the fixed terminal 70 are fixed to the base 10, and the closing terminal 11, the first clamping portion 101, and the second clamping portion 102 are molded simultaneously with the base 10. This structural design effectively improves the stability of the opening terminal 80 and the fixing terminal 70 at the base 10, and greatly reduces the installation cost and material cost of the opening terminal 80 and the fixing terminal 70 at the base 10, simplifying the assembly process of the micro switch.

[0022] As attached Figure 5 As shown, a pressure rod head 41 is provided at the upper end of the pressure rod 40 , and a receiving cavity 42 for mounting the contact piece 30 is provided at the lower end of the pressure rod 40 .

[0023] As attached Figure 6 As shown, the contact piece 30 is provided with a first clip portion 31 for switching contact with both the opening terminal 80 and the closing terminal 11, and the contact piece 30 is provided with a second clip portion 32 for sliding contact with the fixed terminal 70. A connecting plate portion 33 is provided between the first clip portion 31 and the second clip portion 32, and a positioning hole 34 is opened at the connecting plate portion 33. A positioning protruding rod portion 43 matching the positioning hole 34 is provided at the lower side of the pressure rod member 40.

[0024] When using, combine with Figure 3 , Attachment Figure 6 , Attachment Figure 7 and attached Figure 8 As shown, the micro switch is turned on or off by manually pressing the lever 40. Figure 7 As shown, when the pressure rod 40 is not manually pressed, the second clip portion 32 of the contact piece 30 is located at the fixed terminal 70, the first clip portion 31 of the contact piece 30 is located at the closing terminal 11, the fixed terminal 70 is connected to the closing terminal 11, and the micro switch is in the closed state.

[0025] As attached Figure 8 As shown, when the pressure rod 40 is manually pressed, the pressure rod 40 drives the contact piece 30 to move downward, and the first clamping piece portion 31 of the contact piece 30 switches to the opening terminal 80. At this time, the fixed terminal 70 is connected to the closing terminal 11, and the micro switch is in the open state.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, 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, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0027] It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0028] The above description does not limit the technical scope of the present invention. Any modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A silent push-button micro switch, comprising a base (10), a shell cover (20), and a contact piece (30), wherein the shell cover (20) is arranged above the base (10), a pressure rod (40) is slidably and lifted at the shell cover (20), a dust cap (50) is arranged between the pressure rod (40) and the shell cover (20), a spring (60) is arranged between the pressure rod (40) and the base (10), and the contact piece (30) is fixedly mounted on the lower end of the pressure rod (40), characterized in that: A fixed terminal (70) and an open terminal (80) are fixedly arranged on the left and right sides of the base (10), respectively; the base (10) is provided with a closing terminal (11) integrally formed with the base (10); the closing terminal (11) is arranged at the top end of the opening terminal (80); the closing terminal (11) is provided with a first clamping portion (101) for connecting with the base (10) along the opening terminal (80); one side of the contact piece (30) is in sliding contact with the fixed terminal (70), and the other side of the contact piece (30) switches contact with both the opening terminal (80) and the closing terminal (11) as the pressure rod (40) moves up and down.

2. A silent push-button micro switch according to claim 1, characterized in that: The base (10) is provided with a second clamping portion (102) along the fixed terminal (70) for connecting to the base (10).

3. A silent push-button micro switch according to claim 1, characterized in that: The upper end of the pressure rod (40) is provided with a pressure rod head (41), and the lower end of the pressure rod (40) is provided with a receiving cavity (42) for installing the contact piece (30).

4. A silent push-button micro switch according to claim 1, characterized in that: The contact piece (30) is provided with a first clip portion (31) for switching contact with both the opening terminal (80) and the closing terminal (11), and the contact piece (30) is provided with a second clip portion (32) for sliding contact with the fixed terminal (70).

5. A silent push-button micro switch according to claim 4, characterized in that: A connecting plate portion (33) is provided between the first clamping piece portion (31) and the second clamping piece portion (32), a positioning hole (34) is provided at the connecting plate portion (33), and a positioning protruding rod portion (43) matching with the positioning hole (34) is provided at the lower side of the pressure rod member (40).

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