WO2021046952A1 - 一种静音光学微动开关及开关模组 - Google Patents
一种静音光学微动开关及开关模组 Download PDFInfo
- Publication number
- WO2021046952A1 WO2021046952A1 PCT/CN2019/110061 CN2019110061W WO2021046952A1 WO 2021046952 A1 WO2021046952 A1 WO 2021046952A1 CN 2019110061 W CN2019110061 W CN 2019110061W WO 2021046952 A1 WO2021046952 A1 WO 2021046952A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- reed
- bracket
- base
- movable end
- micro switch
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/26—Snap-action arrangements depending upon deformation of elastic members
- H01H13/36—Snap-action arrangements depending upon deformation of elastic members using flexing of blade springs
Definitions
- the utility model relates to the technical field of switches, in particular to a silent optical micro switch and a switch module.
- a micro switch is a contact mechanism that has a small contact interval and a snap-action mechanism, and uses a specified stroke and a specified force to switch action. It is covered by a shell and has a drive rod outside of it. Because the contact distance of the switch is relatively small. Small, hence the name micro switch, also called sensitive switch. Among them, the micro switch that realizes the switch on and off by the principle of light beam is called the optical micro switch.
- the existing optical micro switch generally connects a triggering piece and a conducting piece at both ends of the action reed respectively.
- the external mechanical force acts on the action reed through the triggering piece, so that the end of the action reed drives the conducting piece to move.
- Optical micro-switches are often used as control switches for precision instruments due to their advantages of small contact spacing, short action stroke, small pressing force, and rapid on-off.
- the action reed will produce a "tick" sound during the working process, and when the above optical micro switch is used in equipment that needs frequent on and off, for example, the optical micro switch is used For the mouse, when the device is frequently switched on and off, the optical micro switch will produce an uninterrupted "tick” sound, which makes the device unable to be used in a quiet environment.
- the present invention provides a silent optical micro switch and a switch module.
- the first aspect of the utility model discloses a silent optical micro switch, comprising: an upper cover, a base, a first bracket, a reed, a control button, and a conducting rod.
- the upper cover is arranged on the base to form an installation cavity, and the bottom of the base is arranged There is an opposing channel, the base is also provided with a conducting groove communicating with the opposing channel, the first bracket is fixed to one end of the base, the top of the first bracket is located in the mounting cavity and is provided with a fixing protrusion, the reed has a fixed end and The movable end and the fixed end are fixed to the fixed protrusion.
- the top of the control button is penetrated by the upper cover, and the bottom of the control button is in contact with the surface of the reed.
- the conduction rod penetrates the conduction groove and is linked with the control button. The movement of the reed
- the end is arranged between the silencing bodies, or the silencing body is arranged on the movable end of the reed.
- the muffler includes: an upper elastic sheet and a lower elastic sheet, the upper elastic sheet and the lower elastic sheet are relatively disposed on the cavity wall of the movable cavity, and the movable ends of the reeds are located on the upper elastic sheet and the lower elastic sheet between.
- the muffler includes: elastic particles embedded in the movable end of the reed.
- the muffler includes: an elastic sleeve, and the elastic sleeve is sleeved on the movable end of the reed.
- the mute optical micro switch further includes a second bracket, the second bracket is fixed to the end of the base away from the first bracket, the top of the second bracket is located in the installation cavity and is provided with a limit plate, and a reed The movable end is arranged between the limit plate and the base.
- the first bracket and the second bracket and the base are integrally formed.
- the silent optical micro switch further includes a second bracket.
- the second bracket is fixed to an end of the base away from the first bracket.
- the bottom ends of the first bracket and the second bracket extend downward to form a plug-in connection. unit.
- a dust-proof pocket is arranged around the control button, and a dust-proof groove is opened on the dust-proof pocket.
- the second aspect of the utility model discloses a switch module, which includes a circuit board and an opposite beam tube arranged on the circuit board, and further includes: the silent optical micro switch according to the first aspect of the utility model, the silent optical micro switch The switch is arranged on the circuit board, and the shooting tube is arranged on both sides of the shooting channel.
- the reed is provided with a fixed end and a movable end, wherein the movable end of the reed is arranged between the silencer body, or the silencer is arranged on the movable end of the reed,
- the movable end of the reed abuts against the internal surface of the switch through the silencer, and the silencer is used to reduce or eliminate the sound generated by the collision between the reed and the switch, so that the optical micro switch of the present invention achieves a mute effect. Suitable for quiet environment.
- Figure 1 is an exploded schematic diagram of the mute optical micro switch in the utility model.
- Figure 2 is a schematic diagram of the bottom structure of the base in the utility model.
- Figure 3 is a schematic view of the structure in which the control button and the conducting rod of the utility model are integrally formed.
- Figure 4 is a cross-sectional view of the utility model adopting elastic particles in the muffler.
- Figure 5 is a cross-sectional view of the muffler in the utility model adopting the upper elastic sheet and the lower elastic sheet.
- Fig. 6 is a cross-sectional view of the sound-absorbing body in the utility model adopting an elastic sleeve.
- Fig. 7 is a schematic diagram of the structure in which the first bracket and the second bracket in the present invention are integrally formed.
- Fig. 8 is a schematic diagram of the structure of the control button and the conducting rod of the present invention in a split structure.
- Figure 9 is an exploded schematic diagram of the switch module of the present invention.
- Figures 1 to 4 are the exploded schematic diagram of the silent optical micro switch in the present invention, the schematic diagram of the bottom structure of the base, the schematic diagram of the control button, and the cross-sectional view of the muffler using elastic particles.
- the utility model provides a silent optical micro switch, which comprises an upper cover 1, a base 2, a first bracket 3, a reed 5, a control button 6, a conducting rod 7 and a silencer 9.
- the upper cover 1 is arranged on the base 2 to form a mounting cavity between the upper cover 1 and the base 2.
- the mounting cavity is composed of the inner wall of the upper cover 1 and the outer walls of other components.
- the mounting cavity is mainly used for the first bracket 3 and the The installation of the two brackets 4, the reed 5, the control button 6, the conducting rod 7 and other components and the provision of working space for the above components.
- the bottom of the base 2 is provided with a through-beam channel 201, wherein the through-beam channel 201 is mainly used to pass through the optical circuit of the light through the radiation tube, and the base 2 is also provided with a conducting groove 202 communicating with the through-beam channel 201.
- the first bracket 3 is fixed to one end of the base 2, wherein the top end of the first bracket 3 is located in the installation cavity and is provided with a fixing protrusion 301.
- the reed 5 has a fixed end 501 and a movable end 502, wherein the fixed end 501 is matched with the fixed protrusion 301, the reed 5 is fixed on the fixed protrusion 301 through the fixed end 501, and the movable end of the reed 5 is arranged on the second bracket 4 Between the top of the reed and the base 2, the position of the movable end 502 of the reed 5 is limited. When the reed 5 is deformed in operation, the reed 5 as a whole makes an elastic reciprocating movement in the vertical direction. Specifically, the reed 5 can use conventional components in the prior art.
- the upper cover 1 is penetrated on the top of the conductive rod 7 of the control button 6, the bottom of the control button 6 abuts the surface of the reed 5, and the conductive rod 7 penetrates the conductive groove 202 and is linked with the control button 6.
- the movable end 502 of the reed 5 is arranged between the silencer bodies 9, or the silencer body 9 is arranged on the movable end 502 of the reed 5, and the movement space in the installation cavity defining the movable end 502 of the reed 5 constitutes the movable cavity 8.
- the size of the movable cavity 8 is smaller than or equal to the installation cavity, and the movable end 502 of the reed 5 abuts against the cavity wall of the movable cavity 8 through a silencer 9.
- the movable cavity 8 is composed of the surface of other parts located in the installation cavity 8.
- the movable cavity 8 is mainly used to provide the movement space of the movable end 502 and limit the movable end 502. Specifically, when the reed 5 is controlled by the mechanism of the button 6 When the force is deformed, the reed 5 moves downward in the vertical direction as a whole. When the mechanical force of the control button 6 is removed, the reed 5 resumes its deforming movement upward in the vertical direction as a whole.
- the movable end 502 moves with the movement of the reed 5 And the movable end 502 abuts against the movable cavity 8 through the silencer 9, that is, the movable end 502 of the reed 5 abuts against the internal surface of the switch through the silencer 9, thereby reducing or eliminating the sound generated by the collision between the reed and the inside of the switch.
- the reed 5 is pressed through the control button 6, and the movable end 502 of the reed 5 abuts against the cavity wall of the movable cavity 8 through the silencer 9.
- the reed 5 The movable end 502 abuts against the surface of other components in the switch through the muffler 9, so as to reduce or eliminate the sound generated by the collision between the reed and the switch, and achieve the mute effect.
- the conducting rod 7 is in linkage with the reed 5.
- the conduction rod 7 moves in the conduction groove 202 until the conduction rod 7 moves to the side of the shooting channel 201 to block the light from the optical circuit of the shooting tube, thereby closing the switch.
- the sheet 5 is in a deformed state; when the mechanical pressure on the control button 6 is removed, the elastic restoring force of the reed 5 simultaneously drives the control button 6 and the conducting rod 7 to move upward to reset, and the optical circuit of the light to the shooting tube is restored to guide Turn on, so that the switch is turned on.
- the mute optical micro switch of the present invention can also be used to realize the normally closed function of the switch.
- a conduction hole 701 is provided on the conduction rod 7.
- the conduction rod 7 conducts The through rod 7 moves in the conduction slot 202 until the through hole 701 corresponds to the opposite beam channel 201, so that the optical circuit of the light beam tube is turned on, and the normally closed function of the mute optical micro switch of the present invention is realized.
- the muffler 9 is made of silica gel or other soft materials with muffling characteristics to effectively ensure the muffler effect of the muffler 9, thereby effectively improving the mute effect.
- FIGS 5 and 6 are a cross-sectional view of the muffler using upper and lower elastic sheets and a cross-sectional view of the muffler using an elastic sleeve in the muffler of the present invention.
- the muffler 9 includes an upper The elastic sheet 901 and the lower elastic sheet 902, the upper elastic sheet 901 and the lower elastic sheet 902 are relatively disposed on the cavity wall of the movable cavity 8.
- the upper elastic sheet 901 and the lower elastic sheet 902 are respectively fixed to the wall of the movable cavity 8 by bonding or embedding.
- the movable end 502 of the reed 5 is located between the upper elastic piece 901 and the lower elastic piece 902, so that the movable end of the reed 5 is covered by the upper elastic piece 901 and the lower elastic piece 902
- the muffler body 9 includes elastic particles 903. Specifically, the movable end 502 of the reed 5 is provided with a clamping groove 503, and the elastic particles 903 are embedded in the movable end 502 of the reed 5 through the clamping groove 503. The elastic particles 903 are located at the contact point between the movable end 502 and the movable cavity 8.
- the muffler body 9 includes an elastic sleeve 904, wherein the elastic sleeve 904 matches the shape of the movable end 502 of the reed 5, and the specific elastic sleeve 904 is sleeved on the movable end 502 of the reed 5 to realize the alignment of the movable end 502.
- the full envelopment of the reed 5 realizes the mute effect when the reed 5 is working, reduces the difficulty of production, and effectively improves the production efficiency.
- the silent micro switch of the present invention further includes a second bracket 4, the second bracket 4 is fixed on the base 2 away from the first bracket 3. At one end, the top end of the second bracket 4 is located in the installation cavity and a limit plate 401 is provided.
- the limit plate 401 adopts an inverted L-shaped design, and the movable end 502 of the reed 5 is located between the limit plate 401 and the base 2. At this time, the movable cavity 8 is constituted by the movable area between the limit plate 401 and the base 2.
- the space size of the movable cavity 8 can be adjusted, so as to realize the movable end 502 of the reed 5
- the movement range of the reed 5 can be adjusted to adjust the deformation range of the reed 5, and at the same time, the reed 5 can be prevented from being damaged due to excessive deformation.
- FIG. 7 is a schematic diagram of the structure in which the first bracket and the second bracket in the present invention are integrally formed.
- the first bracket 3, the second bracket 4 and the base 1 can adopt an integrally formed structure.
- the first bracket 3, the second bracket 4 and the base 1 are integrally formed by injection molding, so that the stability of the connection between the first bracket 3, the second bracket 4 and the base 1 is effectively improved .
- the first bracket 3 and the second bracket 4 and the base 1 can adopt a split structure design.
- the first bracket 3 and the second bracket 4 adopt a metal terminal structure
- the first bracket 3 and the second bracket 4 adopt a snap connection. Or it is fixed to the two ends of the base 1 in abutting manner.
- the silent micro switch of the present invention further includes a second bracket 4, wherein the bottom ends of the first bracket 3 and the second bracket 4 extend downward and are formed for insertion
- the structure of the plug-in portion connected to the circuit board utilizes the plug-in portions of the first bracket 3 and the second bracket 4 to realize that the silent optical micro switch of the present invention is installed on the circuit board, and the plug-in portion is welded and fixed.
- the control button 6 is provided with a dust-proof pocket 601 around it, and a dust-proof pocket 601 is provided with a dust-proof groove 6011, a dust-proof pocket 601, a dust-proof pocket 601 dust-proof pocket 601 dust-proof groove 6011, when the mute optical micro switch of the present invention is in a natural state, the control button 6 penetrates the upper cover 1, wherein the dust-proof pocket 601 abuts against the lower wall of the upper cover 1, and then passes The dust-proof groove 6011 seals the gap between the control button 6 and the upper cover 1, so that when dust enters the switch from the gap, it falls into the dust-proof groove 6011, avoiding the influence of dust on other parts inside the switch, and effectively improving the utility. The reliability of the new silent optical micro switch.
- FIG. 8 is a schematic structural diagram of the control button and the conduction rod in the present invention as a separate structure.
- the control button 6 and the conduction rod 7 can adopt an integrated structure.
- the top end of the conduction rod 7 fixes the bottom of the control button 6 so as to effectively increase the force transmission response rate between the control button 6 and the conduction rod 7.
- a separate design can also be adopted between the control button 6 and the conducting rod 7.
- the conducting rod 7 is fixed to the movable end 502 of the reed 5, and the control button 6 abuts against the surface of the fixed end 501 of the reed 5.
- the reed 5 When the control button 6 is pressed, the reed 5 is pressed down as a whole and deformed toward the movable end 502, which drives the conducting rod 7 to move downwards. When the pressure of the control button 6 is removed, the reed 5 recovers and drives the conducting rod 7 Move upward to realize the linkage between the control button 6 and the conducting rod 7.
- the utility model also provides a switch module, please refer to Figures 4 and 9, where Figure 9 is an exploded schematic diagram of the switch module in the utility model, the switch module includes a circuit board 10 and the circuit board 10
- the aiming tube 11 also includes: the mute optical micro switch described in the first embodiment of the present invention, the mute optical micro switch is arranged on the circuit board 10, and the aiming tube 11 is arranged on both sides of the opposite beam channel 201, specifically Yes, the opposite beam tube 11 has a launch tube and a receiving tube, the launch tube and the receiving tube are respectively arranged on both sides of the opposite beam channel 201, and the optical circuit between the launch tube and the receiving tube is located in the opposite beam channel 201, the utility model
- the switch module of 1 performs interference blocking on the optical circuit located in the beam channel 201 through the conduction rod 7, so that the time switch is turned on and off.
- the bottom of the base 2 is also provided with a mounting slot 203 that matches the shooting tube 11, and the shooting tube 11 is installed in the mounting slot 203, so that the shooting tube 11 is hidden in the base 2, and the working stability of the shooting tube 11 is effectively improved. It is flexible, and can reduce the size design of the circuit board 10.
- the reed is provided with a fixed end and a movable end, wherein the movable end of the reed is arranged between the silencer, or the silencer is arranged on the reed
- the movable end of the reed abuts against the internal surface of the switch through the muffler body, and the muffler body is used to reduce or eliminate the sound generated by the collision between the reed and the switch, so that the optical micro-movement of the present invention
- the switch achieves a mute effect and is suitable for quiet environments.
- first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with “first” and “second” may explicitly or implicitly include one or more of these features. In the description of the present invention, “multiple” means two or more than two, unless otherwise specifically defined.
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Abstract
Description
Claims (9)
- 一种静音光学微动开关,其特征在于,包括:上盖、底座、第一支架、簧片、控制按钮、导通杆以及消音体,所述上盖盖设于底座形成安装腔,所述底座底部设置有对射通道,所述底座上还设置有与所述对射通道连通的导通槽,所述第一支架固定于所述底座的一端,所述第一支架顶端位于所述安装腔内并设置有固定凸起,所述簧片具有固定端以及活动端,所述固定端固定于所述固定凸起,所述控制按钮的顶部穿设所述上盖,其底部与所述簧片的表面抵接,所述导通杆穿设导通槽内并与所述控制按钮联动,其中所述簧片的活动端设置于所述消音体之间,或者所述消音体设置于所述簧片的活动端上。。
- 根据权利要求1所述的静音光学微动开关,其特征在于,所述消音体包括:上弹性片以及下弹性片,所述上弹性片以及下弹性片相对设置于所述活动腔的腔壁,所述簧片的活动端位于所述上弹性片以及下弹性片之间。
- 根据权利要求1所述的静音光学微动开关,其特征在于,所述消音体包括:弹性粒,所述弹性粒嵌设于所述簧片的活动端。
- 根据权利要求1所述的静音光学微动开关,其特征在于,所述消音体包括:弹性套,所述弹性套套于所述簧片的活动端。
- 根据权利要求1至4任一所述的静音光学微动开关,其特征在于,其还包括:第二支架,所述第二支架固定于所述底座远离所述第一支架的一端,所述第二支架的顶端位于安装腔内并设置有限位板,所述簧片的活动端设置于所述限位板与所述底座之间内。
- 根据权利要求5所述的静音光学微动开关,其特征在于,所述第一支架和第二支架与底座为一体成型结构。
- 根据权利要求1至4任一所述的静音光学微动开关,其特征在于,其还包括:第二支架,所述第二支架固定于所述底座远离所述第一支架的一端,所述第一支架以及第二支架的底端向下延伸并形成插接部。
- 根据权利要求1至4任一所述的静音光学微动开关,其特征在于,所述控制按钮上绕设有防尘兜,所述防尘兜上开设有防尘槽。
- 一种开关模组,包括:线路板以及设置于所述线路板上的对射管,其特征在于,其还包括:权利要求6所述的静音光学微动开关,所述静音光学微动开关设置于线路板上,所述对射管设置于所述对射通道的两侧。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN201921488755.5U CN210349629U (zh) | 2019-09-09 | 2019-09-09 | 一种静音光学微动开关及开关模组 |
CN201921488755.5 | 2019-09-09 |
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WO2021046952A1 true WO2021046952A1 (zh) | 2021-03-18 |
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PCT/CN2019/110061 WO2021046952A1 (zh) | 2019-09-09 | 2019-10-09 | 一种静音光学微动开关及开关模组 |
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WO (1) | WO2021046952A1 (zh) |
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CN113890524B (zh) * | 2021-12-02 | 2022-02-15 | 惠州市正牌科电有限公司 | 双触感光电控制键盘开关模组 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104616921A (zh) * | 2015-01-15 | 2015-05-13 | 东莞市凯华电子有限公司 | 静音开关 |
US20180112864A1 (en) * | 2016-10-25 | 2018-04-26 | Alson Technology Limited | Mouse |
CN108281314A (zh) * | 2017-12-08 | 2018-07-13 | 东莞市凯华电子有限公司 | 一种高寿命静音微动开关 |
CN208027948U (zh) * | 2018-01-31 | 2018-10-30 | 惠州市正牌科电有限公司 | 一种新型微动开关结构 |
-
2019
- 2019-09-09 CN CN201921488755.5U patent/CN210349629U/zh active Active
- 2019-10-09 WO PCT/CN2019/110061 patent/WO2021046952A1/zh active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104616921A (zh) * | 2015-01-15 | 2015-05-13 | 东莞市凯华电子有限公司 | 静音开关 |
US20180112864A1 (en) * | 2016-10-25 | 2018-04-26 | Alson Technology Limited | Mouse |
CN108281314A (zh) * | 2017-12-08 | 2018-07-13 | 东莞市凯华电子有限公司 | 一种高寿命静音微动开关 |
CN208027948U (zh) * | 2018-01-31 | 2018-10-30 | 惠州市正牌科电有限公司 | 一种新型微动开关结构 |
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