Silent microswitch

Abstract

The utility model relates to the field of microswitches, in particular to a mute type microswitch. The problems that noise is generated due to friction, collision and vibration between mechanical structures when an existing microswitch is switched on and off, and noise disturbance is easily caused in special occasions such as libraries and hospitals are solved. Compared with a traditional microswitch, the microswitch comprises the main body assembly, the sealing assembly and the sound insulation assembly, and the two groups of symmetrically arranged silencers are arranged in the shell, so that the silencing effect can be achieved, the sound generated in the working process of the internal structure can be greatly weakened, and the service life of the microswitch is prolonged. The damping modules are arranged on the normally-closed contact and the normally-open contact, so that the damping effect can be achieved in the vibration process of the normally-closed contact and the normally-open contact, noise is reduced by reducing the amplitude, the sound insulation assembly can conduct sound insulation, and under the multiple sound insulation and silencing effects of the silencer and the sound insulation plate box sound insulation assembly, the sound insulation effect of the normally-closed contact and the normally-open contact is improved. And noise is not easy to generate in the working process.

Description

Technical Field

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

[0002] A micro switch is a contact mechanism with a tiny contact spacing and a snap-action mechanism. It uses a specified stroke and a specified force to perform a switching action. It has a driving rod on the outside and is a quick switch actuated by pressure. It is also called a sensitive switch or a snap-action switch. Because the contact spacing of a micro switch is relatively small, it is called a micro switch. The micro switch has the advantages of being small and flexible, easy to install, highly precise triggering, reliable operation, and long life. Existing micro switches usually generate noise due to friction, collision, and vibration between mechanical structures when performing a switching action, which can easily cause noise disturbance in special occasions such as libraries and hospitals. Utility Model Content

[0003] In order to overcome the existing micro switches, noise is usually generated due to friction, collision and vibration between mechanical structures during the switching action, which is easy to cause noise disturbance in special occasions such as libraries and hospitals.

[0004] The technical solution of the utility model is: a silent micro switch, including a main body component, a sealing component and a sound insulation component, the front end of the main body component is provided with a sealing component for sealing, and the side of the main body component is provided with a sound insulation component for sound insulation.

[0005] Preferably, by arranging two groups of symmetrically arranged silencers inside the shell, a sound-absorbing effect can be achieved, so that the sound generated during the operation of the internal structure can be greatly weakened. By arranging shock-absorbing modules on both the normally closed contact and the normally open contact, a buffering and shock-absorbing effect can be achieved during the vibration of the normally closed contact and the normally open contact, so that the noise generation can be reduced by reducing the amplitude. By arranging two groups of symmetrically arranged silencers inside the shell, a sound-absorbing effect can be achieved, so that the sound generated during the operation of the internal structure can be greatly weakened. By arranging shock-absorbing modules on both the normally closed contact and the normally open contact, a buffering and shock-absorbing effect can be achieved during the vibration of the normally closed contact and the normally open contact, so that the noise generation can be reduced by reducing the amplitude. The shock-absorbing module is used to reduce the amplitude of the internal structure to reduce the noise generation. Under the multiple sound insulation and silencing effects of the silencer, the sound insulation board and the sound insulation component, the micro switch is not easy to generate noise during operation, so that the micro switch has a silent effect, which is better than the silent effect of the traditional micro switch.

[0006] Preferably, the main body component includes a shell, a button, a hook piece, a spring, a common head, a movable spring piece, a normally closed contact, a normally open contact, a muffler, a first contact block, a second contact block and a shock absorbing module. A button for switching the circuit is provided on the upper side of the shell, and the lower end of the button extends through the upper end of the shell to the interior. A hook piece for rebound is provided at the lower end of the button, and a movable spring piece for assisting rebound is provided at the end of the hook piece away from the button. A common head for transferring current is provided at the lower end of the movable spring piece, and the common head extends through the inside of the shell to the outside. By pressing the button, the on and off of the circuits at the normally closed contact and the normally open contact can be controlled.

[0007] Preferably, the first contacts for connecting the circuit are symmetrically provided on the upper and lower sides of the end of the moving spring away from the spring sheet, and the normally closed contact and the normally open contact for connecting the circuit are symmetrically provided on the right end of the shell. The inner sides of the normally closed contact and the normally open contact close to the end of the moving spring are both provided with a second contact for contacting the first contact. Fixing holes for detachable connection with the sealing assembly are provided around the inner corners of the shell, and two groups of magnetic suction grooves for fixing the sound insulation assembly are symmetrically provided on the right end of the shell. The sound insulation assembly can be fixed to the shell by setting the magnetic suction grooves, thereby maintaining the stability of the sound insulation assembly.

[0008] Preferably, the connection and disconnection of the first contact and the second contact are controlled by pressing a button, and the normally closed contact and the normally open contact extend through the shell to the outside. A shock-absorbing module for shock absorption is symmetrically provided at one end of the shell where the normally closed contact and the normally open contact are away from each other, and two groups of silencers for silence are symmetrically provided on the upper and lower inner walls of the shell. By setting two groups of symmetrically arranged silencers, two-way silence can be performed, so that the noise generated inside is greatly weakened.

[0009] Preferably, the shock absorbing module includes a fixed block, a connecting block, a spring and a damper. The springs are symmetrically arranged in two groups. Both ends of the two groups of springs are connected with connecting blocks for fixing the springs. The connecting blocks are fixedly connected to the normally closed contacts and the normally open contacts through the fixed blocks. A damper for rebound is arranged inside the spring. By arranging two groups of symmetrically arranged springs each with a damper, the elasticity of the springs can be used to play a certain buffering role, thereby reducing the amplitude of the normally closed contacts and the normally open contacts.

[0010] Preferably, the sealing assembly includes a sealing cover, bolts and a sound insulation plate. A sound insulation plate is provided on the inner side of the sealing cover for sound insulation. Bolts for fixing the sealing cover are provided around the four corners of the outer side of the sealing cover. The bolts extend through the outer side of the sealing cover to the inner side and are detachably connected to the fixing holes. By arranging the sealing cover and the housing to be detachably connected, inspection and maintenance are facilitated in the event of a fault.

[0011] Preferably, the sound insulation component includes a sound insulation box, a sound insulation layer, a sound insulation pad and a magnetic block. The inner side of the sound insulation box is fitted with a sound insulation layer for sound insulation, and the end of the sound insulation box away from the shell is symmetrically provided with two groups of through holes for normally closed contacts and normally open contacts to pass through. The end of the sound insulation box close to the shell is fitted with a sound insulation pad for sound insulation, and the end of the sound insulation pad close to the shell is symmetrically provided with two groups of magnetic blocks for magnetic attraction with the magnetic groove. By arranging a sound insulation layer on the inner side of the sound insulation box and arranging a sound insulation pad at the end where the sound insulation box and the shell are connected, a double sound insulation effect can be achieved inside and outside.

[0012] Beneficial effects of the utility model:

[0013] 1. Compared with the traditional micro switch, it can usually only be used for a certain specific inspection, and usually when the switch is performed, noise will be generated due to friction, collision and vibration between the mechanical structures, which is easy to cause noise disturbance in special occasions such as libraries and hospitals. By arranging two groups of symmetrically arranged silencers inside the shell, it can play a role in silencing, so that the sound generated during the operation of the internal structure can be greatly weakened. By arranging shock-absorbing modules on both the normally closed contact and the normally open contact, it can play a role in buffering and shock-absorbing during the vibration of the normally closed contact and the normally open contact, so that the noise generation can be reduced by reducing the amplitude. By arranging two groups of symmetrically arranged springs with dampers, the elasticity of the springs can be used to play a certain buffering role, thereby reducing the amplitude of the normally closed contact and the normally open contact.

[0014] 2. By arranging a sound insulation component, the normally closed contact and the normally open contact can be covered to achieve sound insulation. By arranging a sound insulation box, the exposed parts of the normally closed contact and the normally open contact can be covered. By arranging a sound insulation layer on the inside of the sound insulation box and arranging a sound insulation pad at the end where the sound insulation box and the shell are connected, a double sound insulation effect of inside and outside can be achieved, so that the noise transmitted by the vibration of the internal structure is blocked inside by the sound insulation box, so that the noise is not easy to be transmitted to the outside, thereby achieving a sound insulation effect. By arranging a sound insulation board on the inner side of the sealing cover, a sound insulation effect can also be achieved, so that the internal volume is blocked and weakened. The shock absorbing module is used to reduce the amplitude of the internal structure to reduce the generation of noise. Under the multiple sound insulation and silencing effects of the silencer, the sound insulation board and the sound insulation component, the micro switch is not easy to generate noise during operation, so that the micro switch has a silent effect, which is better than the silent effect of the traditional micro switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 What is shown is the overall schematic diagram of the silent micro switch of the utility model;

[0016] Figure 2 Shown is an exploded schematic diagram of the silent micro switch of the utility model;

[0017] Figure 3 Shown is a schematic diagram of the main component of the silent micro switch of the utility model;

[0018] Figure 4 Shown is a schematic diagram of a shock absorbing module in a silent micro switch of the utility model;

[0019] Figure 5 Shown is a schematic diagram of a spring in a silent micro switch of the utility model;

[0020] Figure 6 Shown is a schematic diagram of a sealing component in a silent micro switch of the utility model;

[0021] Figure 7 Shown is a schematic diagram of a sound insulation component in a silent micro switch of the utility model.

[0022] Explanation of the reference numerals: 1. Main component; 2. Sealing component; 3. Sound insulation component; 101. Shell; 102. Button; 103. Hook piece; 104. Spring piece; 105. Common head; 106. Moving spring piece; 107. Normally closed contact; 108. Normally open contact; 109. Magnetic groove; 110. Fixing hole; 111. Muffler; 112. First contact block; 113. Second contact block; 114. Shock absorption module; 115. Fixing block; 116. Connecting block; 117. Spring; 118. Damper; 201. Sealing cover; 202. Bolt; 203. Sound insulation board; 301. Sound insulation box; 302. Sound insulation layer; 303. Through hole; 304. Sound insulation pad; 305. Magnetic block. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments. Embodiment 1:

[0024] See also Figure 1-2 The utility model provides an embodiment: a silent micro switch, including a main body component 1, a sealing component 2 and a sound insulation component 3, the front end of the main body component 1 is provided with a sealing component 2 for sealing, and the side of the main body component 1 is provided with a sound insulation component 3 for sound insulation.

[0025] See also Figure 3-4In this embodiment, the main assembly 1 includes a shell 101, a button 102, a hook piece 103, a spring piece 104, a common head 105, a moving spring piece 106, a normally closed contact 107, a normally open contact 108, a muffler 111, a first contact block 112, a second contact block 113 and a shock absorbing module 114. The upper side of the shell 101 is provided with a button 102 for pressing the switching line. The lower end of the button 102 passes through the upper end of the shell 101 and extends to the inside. The lower end of the button 102 is provided with a hook piece 103 for rebounding. The hook The end of the sheet 103 away from the button 102 is provided with a movable spring sheet 106 for assisting rebound, and the lower end of the movable spring sheet 106 is provided with a common head 105 for transferring current, and the common head 105 passes through the inner side of the housing 101 and extends to the outside. By pressing the button 102, the circuit on and off at the normally closed contact 107 and the normally open contact 108 can be controlled. The upper and lower sides of the end of the movable spring sheet 106 away from the spring sheet 104 are symmetrically provided with a first contact block 112 for connecting the circuit, and the right end of the housing 101 is symmetrically provided with a normally closed contact 112 for connecting the circuit. The contact 107 and the normally open contact 108, the normally closed contact 107 and the normally open contact 108 are provided with a second contact 113 for contacting the first contact 112 on the inner side of one end thereof close to the movable spring 106, and the inner corner of the housing 101 is surrounded by a fixing hole 110 for detachably connecting with the sealing component 2, and the right end of the housing 101 is symmetrically provided with two groups of magnetic suction grooves 109 for fixing the sound insulation component 3, and the sound insulation component 3 can be fixed on the housing 101 by providing the magnetic suction grooves 109, thereby maintaining the stability of the sound insulation component 3, The connection between the first contact 112 and the second contact 113 is controlled by pressing the button 102, and the normally closed contact 107 and the normally open contact 108 extend to the outside through the shell 101. A shock absorbing module 114 for shock absorption is symmetrically provided at one end of the normally closed contact 107 and the normally open contact 108 away from each other inside the shell 101. Two groups of silencers 111 for silence are symmetrically provided on the upper and lower inner walls of the shell 101. By providing two groups of symmetrically arranged silencers 111, bidirectional silence can be performed, so that the noise generated inside is greatly weakened. Embodiment 2:

[0026] See also Figure 5 In this embodiment, the shock absorbing module 114 includes a fixing block 115, a connecting block 116, a spring 117 and a damper 118. The springs 117 are symmetrically arranged in two groups. Both ends of the two groups of springs 117 are connected with connecting blocks 116 for fixing the springs 117. The connecting blocks 116 and the normally closed contacts 107 and the normally open contacts 108 are fixedly connected through the fixing blocks 115. The springs 117 are provided with dampers 118 for rebound. By arranging two groups of symmetrically arranged springs 117 each with dampers 118, the elasticity of the springs 117 can be used to play a certain buffering role, thereby reducing the amplitudes of the normally closed contacts 107 and the normally open contacts 108.

[0027] See also Figure 6 In this embodiment, the sealing assembly 2 includes a sealing cover 201, bolts 202 and a sound insulation board 203. The inner side of the sealing cover 201 is provided with a sound insulation board 203 for sound insulation. The outer four corners of the sealing cover 201 are surrounded by bolts 202 for fixing the sealing cover 201. The bolts 202 pass through the outer side of the sealing cover 201 and extend to the inner side to be detachably connected with the fixing hole 110. By setting the sealing cover 201 and the housing 101 to be detachably connected, it is convenient to check and repair when a fault occurs. Embodiment 3:

[0028] See also Figure 7 In this embodiment, the sound insulation component 3 includes a sound insulation box 301, a sound insulation layer 302, a sound insulation pad 304 and a magnetic block 305. The inner side of the sound insulation box 301 is fitted with a sound insulation layer 302 for sound insulation. The end of the sound insulation box 301 away from the shell 101 is symmetrically provided with two groups of through holes 303 for the normally closed contact 107 and the normally open contact 108 to pass through. The end of the sound insulation box 301 close to the shell 101 is fitted with a sound insulation pad 304 for sound insulation. The end of the sound insulation pad 304 close to the shell 101 is symmetrically provided with two groups of magnetic blocks 305 for mutual magnetic attraction with the magnetic suction groove 109. By arranging the sound insulation layer 302 on the inner side of the sound insulation box 301 and arranging the sound insulation pad 304 at the end where the sound insulation box 301 and the shell 101 are connected, the double sound insulation effect of inside and outside can be achieved.

[0029] When working, firstly, the sealing cover 201 is installed and fixed in the fixing hole 110 of the main component 1 by means of the bolts 202, so that the sealing cover 201 seals the main component 1;

[0030] Then, the sound insulation box 301 is placed on the outside of the normally closed contact 107 and the normally open contact 108, so that the normally closed contact 107 and the normally open contact 108 pass through the through hole 303, and the magnetic attraction block 305 and the magnetic attraction groove 109 are magnetically attracted to each other;

[0031] During operation, the second contact block 113 at the lower end of the normally closed contact 107 and the first contact block 112 at the upper end of the movable spring 106 contact each other to maintain the passage. By pressing the button 102, the first contact block 112 at the lower end of the movable spring 106 and the second contact block 113 at the upper end of the normally open contact 108 contact each other, so that the circuit at the normally open contact 108 is connected. When the button 102 is released, the circuit returns to the ocean again.

[0032] In the process of pressing the button 102 and the rebound of the button 102 driving the vibration of each structure, the shock absorbing module 114 is used for shock absorption, the elasticity of the spring 117 is used for buffering, and the damper 118 inside the spring 117 rebounds, thereby reducing shock;

[0033] The noise generated by the vibration is absorbed and eliminated by two sets of silencers 111 that are symmetrical up and down, and the noise generated is blocked by the sound insulation board 203 inside the sealing cover 201 at the same time;

[0034] When sound is transmitted to the outside through the normally closed contact 107 and the normally open contact 108, the sound is blocked by the sound insulation component 3, the exposed parts of the normally closed contact 107 and the normally open contact 108 are covered by the sound insulation box 301, and double sound insulation is performed inside and outside by the sound insulation layer 302 on the inside of the sound insulation box 301 and the sound insulation pad 304 at one end where the sound insulation box 301 and the shell 101 are connected.

[0035] Through the above steps, the staff first installs and fixes the sealing cover 201 in the fixing hole 110 of the main component 1 through the bolt 202, so that the sealing cover 201 seals the main component 1, and then puts the sound insulation box 301 on the outside of the normally closed contact 107 and the normally open contact 108, so that the normally closed contact 107 and the normally open contact 108 pass through the through hole 303, and the magnetic suction block 305 and the magnetic suction groove 109 are magnetically attracted to each other. By setting the magnetic suction block 305 and the magnetic suction groove 109 to be magnetically attracted to each other, the sound insulation box 301 can be fixed to prevent it from falling. During the operation, the normally closed contact 107 and the normally open contact 108 are inserted into the through hole 303. The second contact block 113 at the lower end of the head 107 and the first contact block 112 at the upper end of the moving spring 106 contact each other to maintain the passage. By pressing the button 102, the first contact block 112 at the lower end of the moving spring 106 and the second contact block 113 at the upper end of the normally open contact 108 contact each other, so that the circuit at the normally open contact 108 end is connected. When the button 102 is released, the circuit returns to the ocean again. In the process of pressing the button 102 and the rebound of the button 102 driving the vibration of each structure, the shock absorbing module 114 is used for shock absorption, the elasticity of the spring 117 is used for buffering, and the damper 118 inside the spring 117 is used for rebound. , and then shock absorption is performed. By setting the shock absorption module 114 for shock absorption, the amplitude of each internal structure during the working process can be reduced, so that the effect of noise can be reduced by reducing the amplitude, and the noise generated by the vibration is absorbed and eliminated by two groups of silencers 111 that are symmetrical up and down. By setting the silencer 111 for silencer, the noise can be eliminated, so that the noise can be greatly weakened, and the noise generated is blocked by the sound insulation board 203 on the inner side of the sealing cover 201 at the same time. When the sound is transmitted to the outside through the normally closed contact 107 and the normally open contact 108, the sound is blocked by the sound insulation component 3. Insulation, the exposed parts of the normally closed contact 107 and the normally open contact 108 are covered by the sound insulation box 301, and double sound insulation is performed inside and outside by the sound insulation layer 302 on the inner side of the sound insulation box 301 and the sound insulation pad 304 at one end where the sound insulation box 301 and the shell 101 are connected. The shock absorbing module 114 is used to reduce the internal structure amplitude to reduce the noise generation. Under the multiple sound insulation and silencing effects of the silencer 111, the sound insulation board 203 and the sound insulation component 3, the micro switch is not easy to generate noise during operation, so that the micro switch has a silent effect, which is better than the silent effect of the traditional micro switch.

[0036] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A silent micro switch, comprising a main body assembly (1); characterized in that: It also includes a sealing component (2) and a sound insulation component (3), wherein the front end of the main body component (1) is provided with a sealing component (2) for sealing, and the side of the main body component (1) is provided with a sound insulation component (3) for sound insulation.

2. A silent micro switch according to claim 1, characterized in that: The main body component (1) comprises a housing (101), a button (102), a hook piece (103), a spring piece (104), a common head (105), a movable spring piece (106), a normally closed contact (107), a normally open contact (108), a muffler (111), a first contact block (112), a second contact block (113) and a shock absorbing module (114). The upper side of the housing (101) is provided with a button (102) for pressing a switching circuit. The lower end of the button (102) passes through the upper end of the housing (101) and extends to the inside; the lower end of the button (102) is provided with a hook piece (103) for rebound; the end of the hook piece (103) away from the button (102) is provided with a movable spring piece (106) for assisting rebound; the lower end of the movable spring piece (106) is provided with a common head (105) for transferring current; the common head (105) passes through the inside of the housing (101) and extends to the outside.

3. A silent micro switch according to claim 2, characterized in that: The movable spring (106) has a first contact (112) for connecting the circuit symmetrically arranged on the upper and lower sides of one end away from the spring (104); the right end of the housing (101) has a normally closed contact (107) and a normally open contact (108) for connecting the circuit symmetrically arranged on the upper and lower sides; the inner sides of the normally closed contact (107) and the normally open contact (108) close to one end of the movable spring (106) are both provided with a second contact (113) for contacting the first contact (112); the inner corners of the housing (101) are provided with fixing holes (110) for detachably connecting with the sealing component (2); and the right end of the housing (101) has two groups of magnetic suction grooves (109) for fixing the sound insulation component (3) symmetrically arranged.

4. A silent micro switch according to claim 3, characterized in that: The connection between the first contact block (112) and the second contact block (113) is controlled by pressing the button (102); the normally closed contact (107) and the normally open contact (108) extend through the housing (101) to the outside; a shock absorbing module (114) for shock absorption is symmetrically provided at one end of the housing (101) where the normally closed contact (107) and the normally open contact (108) are away from each other; and two groups of silencers (111) for sound absorption are symmetrically provided on the upper and lower inner walls of the housing (101).

5. A silent micro switch according to claim 4, characterized in that: The shock absorbing module (114) comprises a fixing block (115), a connecting block (116), a spring (117) and a damper (118); the springs (117) are provided in two groups symmetrically on the left and right; connecting blocks (116) for fixing the springs (117) are connected to both ends of the two groups of springs (117); the connecting blocks (116) are fixedly connected to the normally closed contact (107) and the normally open contact (108) via the fixing block (115); and a damper (118) for rebound is provided inside the spring (117).

6. A silent micro switch according to claim 1, characterized in that: The sealing assembly (2) comprises a sealing cover (201), bolts (202) and a sound insulation board (203); a sound insulation board (203) for sound insulation is provided on the inner side of the sealing cover (201); bolts (202) for fixing the sealing cover (201) are provided around the four corners of the outer side of the sealing cover (201); the bolts (202) pass through the outer side of the sealing cover (201) and extend to the inner side to be detachably connected to the fixing hole (110).

7. A silent micro switch according to claim 1, characterized in that: The sound insulation component (3) comprises a sound insulation box (301), a sound insulation layer (302), a sound insulation pad (304) and a magnetic attraction block (305); the inner side of the sound insulation box (301) is provided with a sound insulation layer (302) for sound insulation; one end of the sound insulation box (301) away from the housing (101) is symmetrically provided with two groups of through holes (303) for normally closed contacts (107) and normally open contacts (108) to pass through; one end of the sound insulation box (301) close to the housing (101) is provided with a sound insulation pad (304) for sound insulation; and one end of the sound insulation pad (304) close to the housing (101) is symmetrically provided with two groups of magnetic attraction blocks (305) for magnetic attraction with the magnetic attraction groove (109).

Images