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CN-224232558-U - Mini small-sized tact switch

CN224232558UCN 224232558 UCN224232558 UCN 224232558UCN-224232558-U

Abstract

The utility model relates to the technical field of electronic switches, in particular to a mini small-sized tact switch, which comprises a base main body, wherein a conductive terminal is arranged in the base main body, the conductive terminal is connected with an elastic piece for controlling conductive on-off in a bonding mode, a button for pressing the elastic piece is further arranged on the base main body, a gasket for blocking vaporized volatile rosin from entering is arranged between the button and the elastic piece, meanwhile, a first through hole is formed in the gasket, a bump corresponding to the first through hole is arranged on the button, the bump of the button is sleeved in the first through hole of the gasket, and when the button is pressed, the bump synchronously presses the elastic piece. Therefore, the mini small-sized tact switch can well prevent vaporized and volatilized rosin from entering the inside through the gasket, and the pressing effect of the button on the elastic sheet is not affected.

Inventors

  • LIU BAIJUN

Assignees

  • 东莞市五盈电子有限公司

Dates

Publication Date
20260512
Application Date
20250609

Claims (10)

  1. 1. The miniature tact switch comprises a base main body, wherein a conductive terminal is arranged in the base main body, a spring piece for controlling conductive on-off is connected to the conductive terminal in a fitting mode, and a button for pressing the spring piece is further arranged on the base main body; when the button is pressed, the convex points synchronously press the elastic sheet.
  2. 2. The miniature tact switch of claim 1, wherein the base body is provided with a button hole site for installing the button, the gasket is installed on the button hole site in a close-fitting mode, the gasket comprises a first circular body, the first through hole is a circular through hole and is located at the center of the first circular body, first extending flanks are integrally formed on two sides of the first circular body, the button is provided with a second circular body corresponding to the first circular body, the protruding point is a cylinder, the protruding point is located at the center of the second circular body, second extending flanks corresponding to the first extending flanks are integrally formed on two sides of the second circular body, and the second circular body and the second extending flanks of the button are respectively clung to the first circular body and the first extending flanks of the gasket.
  3. 3. A miniature tact switch in accordance with claim 1 or 2, wherein the spacer has a thickness of 0.3-0.5 mm and is made of a high temperature resistant LCP material.
  4. 4. The miniature tact switch of claim 1 or 2, wherein the conductive terminal comprises a conductive contact and a first pin for plugging in a circuit board, the first pin protrudes out of one surface of the base body close to the circuit board, and a plurality of grooves for accommodating soldering tin are formed in one surface of the base body close to the circuit board.
  5. 5. The miniature tact switch of claim 4, wherein the conductive contact of the conductive terminal and the surface of the first pin are gold-plated or silver-plated.
  6. 6. The miniature tact switch of claim 4, wherein the button has a cavity formed on the outer side, and an LED lamp is disposed in the cavity and connected with conductive pins for electrical connection.
  7. 7. The miniature light touch switch of claim 6, wherein the miniature light touch switch is a side-pressed miniature light touch switch, a cover body is buckled on the side surface of the base body, a second through hole for the accommodating cavity of the button to protrude is formed in the cover body, a second pin extending downwards is arranged at the bottom end of the cover body, and the second pin of the cover body, the conductive pin of the LED lamp and the first pin of the conductive terminal protrude out of the bottom end of the base body.
  8. 8. The miniature tact switch of claim 2, wherein the base body comprises a base and a middle seat, the base and the middle seat are mutually buckled, wherein third through holes are formed in four corners of the base, the middle seat is formed with convex columns matched and corresponding to the third through holes, 4 convex columns of the middle seat are correspondingly inserted into 4 third through holes of the base, the button hole site is located in the middle seat, and a step for propping against the gasket is formed on the periphery of the inner side of the button hole site.
  9. 9. The miniature tact switch of claim 7, wherein the base body and the button are made of insulating plastic material, and the cover, the spring, the conductive terminal, and the conductive pin of the LED lamp are made of metal material.
  10. 10. The miniature tact switch of claim 8, wherein the base body has a length, width and height of 2-10 mm.

Description

Mini small-sized tact switch Technical field: the utility model relates to the technical field of electronic switches, in particular to a miniature light touch switch. The background technology is as follows: In the process of assembling electronic devices, a miniature light touch switch is used as a common electronic component and is widely applied to various button-type devices, such as a miniature computer, a microcomputer, a server, a remote controller, an electronic toy, a miniature electronic instrument and the like. The tact switch has the characteristics of small volume, compact structure, sensitive operation and the like, and can realize the quick on-off function of a circuit. However, a troublesome technical problem is often encountered when soldering a miniature tact switch to a circuit board. At present, rosin is generally used as a soldering flux in the welding process, and the soldering flux has the main functions of removing an oxide layer on the surface of metal and reducing the surface tension, so that the reliability and the quality of welding are ensured. In the welding process, rosin can be vaporized and volatilized after being heated, and the vaporized and volatilized rosin can easily enter the interior from gaps around the button of the miniature light touch switch. Once the vaporized and volatilized rosin enters more, the vaporized and volatilized rosin can be deposited on the inner surface of the miniature light touch switch to form solid particle residues, so that the inner part of the miniature light touch switch is blocked or stuck, and the normal operation function and use of the miniature light touch switch are affected. This phenomenon not only reduces the reliability of the product, but also may cause the functional failure of the entire electronic device, causing inconvenience to the user. Therefore, how to prevent the vaporized and volatilized rosin from entering the interior of the miniature light touch switch in the welding process becomes a technical problem to be solved urgently. The utility model comprises the following steps: The utility model aims to provide a miniature light touch switch capable of well preventing vaporized and volatilized rosin from entering the interior, aiming at the defects in the prior art. In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: A miniature tact switch comprises a base main body, wherein a conductive terminal is arranged inside the base main body, an elastic sheet for controlling conductive on-off is connected to the conductive terminal in a fitting mode, a button for pressing the elastic sheet is further installed on the base main body, a gasket for blocking vaporized volatile rosin from entering is arranged between the button and the elastic sheet, a first through hole is formed in the gasket, a bump corresponding to the first through hole is arranged on the button, the bump of the button is sleeved in the first through hole of the gasket, and when the button is pressed, the bump synchronously presses the elastic sheet. The base is characterized in that the base body is provided with a button hole site for installing the button, the gasket is installed on the button hole site in a close matching mode, the gasket comprises a first round body, the first through hole is a round through hole and is located at the center of the first round body, first extending flanks are integrally formed on two sides of the first round body, the button is provided with a second round body corresponding to the first round body, the protruding point is a cylinder and located at the center of the second round body, second extending flanks corresponding to the first extending flanks are integrally formed on two sides of the second round body, and the second round body and the second extending flanks of the button are respectively clung to the first round body and the first extending flanks of the gasket. A further improvement on the scheme is that the thickness of the gasket is 0.3-0.5 mm, and the gasket is made of high-temperature-resistant LCP material. The technical scheme is further improved in that the conductive terminal comprises a conductive contact and a first pin for plugging in the circuit board, the first pin protrudes out of one surface of the base body, which is close to the circuit board, and a plurality of grooves for accommodating soldering tin are formed in one surface of the base body, which is close to the circuit board. The further improvement of the scheme is that the surfaces of the conductive contact and the first pin of the conductive terminal are gold-plated or silver-plated. According to the technical scheme, the LED lamp is arranged in the accommodating cavity, and the LED lamp is connected with conductive pins for electric connection. According to the technical scheme, the miniature light touch switch is a side-pressing miniature light touch switch, a cover body is buckled o