WO2023035092A1 - Ultra thin photoelectric key structure having balanced pressing - Google Patents
Ultra thin photoelectric key structure having balanced pressing Download PDFInfo
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- WO2023035092A1 WO2023035092A1 PCT/CN2021/000228 CN2021000228W WO2023035092A1 WO 2023035092 A1 WO2023035092 A1 WO 2023035092A1 CN 2021000228 W CN2021000228 W CN 2021000228W WO 2023035092 A1 WO2023035092 A1 WO 2023035092A1
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- wing
- light
- grating
- coupling
- keycap
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- 238000003825 pressing Methods 0.000 title claims abstract description 40
- 230000008878 coupling Effects 0.000 claims description 54
- 238000010168 coupling process Methods 0.000 claims description 54
- 238000005859 coupling reaction Methods 0.000 claims description 54
- 238000003860 storage Methods 0.000 claims description 11
- 230000004907 flux Effects 0.000 claims description 3
- 238000010008 shearing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000008859 change Effects 0.000 abstract description 2
- 230000003287 optical effect Effects 0.000 abstract 10
- 230000001360 synchronised effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 9
- 230000008602 contraction Effects 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001795 light effect Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/965—Switches controlled by moving an element forming part of the switch
- H03K17/968—Switches controlled by moving an element forming part of the switch using opto-electronic devices
Definitions
- the invention relates to a switch device, in particular to a photoelectric switch, in particular to an ultra-thin balanced pressing photoelectric key structure, which is mainly used for peripheral devices such as keyboards and other signal input devices.
- the input device is a device that points to the computer to input data and information, and is a bridge for the computer to communicate with the user or other devices, such as a keyboard.
- the keyboard is composed of several key switches.
- the photoelectric switch is a switch that changes the amount of light received by the light-receiving element from the light-emitting element through a grating to form a switch signal.
- the purpose of the present invention is to further make the photoelectric switch thinner, make its pressing stroke smaller than the scissor feet, and meet the technical requirements of balance and stability. Based on this purpose, a new photoelectric switch suitable for Structure.
- the present invention aims to provide an ultra-thin balanced pressing photoelectric key structure that effectively reduces the pressing distance.
- the solution of the present invention is: an ultra-thin balanced pressing photoelectric key structure, including a keycap, a light-emitting element and a photosensitive element arranged on the PCB board, and a light-sensitive element for receiving the light-emitting element from the light-sensitive element.
- the grating structure with variable light generation is characterized in that the grating structure is a grating wing coupled with a linkage wing, and the linkage wing and the grating wing are coupled to move up and down synchronously; there are two warping arms between the linkage wing and the grating wing.
- Torsion spring one warped arm of the reset torsion spring provides upward reset elastic force for the linkage wing, and the other warped arm provides upward reset elastic force for the grating wing, and the keycap is fastened on the upper part of the linkage wing and the grating wing; press any position of the keycap All of them can drive the grating wings to go down, so that the light received by the photosensitive element changes to generate a key signal.
- the grating wing and the linkage wing are coupled through a coupling seat, and coupling arms are extended on both sides of the linkage wing and the grating wing; one side of the coupling arm protrudes with an anti-off fulcrum;
- a bracket is provided at a position corresponding to the anti-off fulcrum, and an accommodating notch is provided on the bracket, and the anti-off fulcrum can be movably embedded in the corresponding accommodating notch and limited up and down.
- it also includes a limit cover plate that can be fixed on the coupling seat, and the position limit cover plate is configured with an anti-off groove at a position corresponding to the notch of the bracket, and the anti-off groove can prevent it from being embedded in the accommodating notch.
- the fulcrum in the placement notch breaks away from the accommodation notch.
- the end of one coupling arm is configured as a concave-shaped coupling opening
- the end of the other coupling arm is configured as a coupling block that can extend into the coupling opening.
- a hook portion is formed between the anti-falling grooves, and a slot is provided on the bracket at a position corresponding to the hook portion, and the space-limiting cover plate and the bracket are fastened by the hook portion and the slot.
- the limit cover plate is also provided with a torsion spring groove for accommodating the reset torsion spring.
- the linkage wing is provided with a sound-generating force storage part
- the sound-generating force-storage part corresponds to a sound-generating torsion spring
- the position-limiting cover is provided with a fixed cavity at the position of the sound-generating torsion spring, and the sound-generating torsion spring is It is fixed in the fixed cavity
- the sounding force storage part is provided with a circular arc chamfer
- the force arm of the sounding torsion spring extends to the position of the circular arc chamfer
- the keycap is pressed, the circular arc chamfer exerts pressure on the
- the force arm slides away from the arc chamfer and hits the limit cover to make a knocking sound; when the keycap is released, the arc chamfer moves upward and resets to above the arm of force.
- a grating part extends from the grating wing and its coupling arm in the same direction
- a light-shielding plate extends downward from the end of the grating part, and the light-emitting element and the photosensitive element are located on both sides of the light-shielding plate.
- a light-limiting plate is also arranged on the connecting seat, and a light-through hole is arranged on the light-limiting plate, the light-emitting element and the photosensitive element are located on both sides of the light-limiting plate, and the light-shielding plate is located on one side of the light-limiting plate ;
- the shading plate descends, it can gradually cover the light hole in a shearing manner so that the photosensitive element can receive a linearly changing luminous flux.
- the keycap is provided with a connection part for connecting the top of the grating wing and the linkage wing, and a limit stop that prevents the keycap from shaking horizontally on the top of the grating wing and the linkage wing.
- the PCB board is provided with an assembly card seat for fixing and installing the connection seat.
- the assembly card seat is a hollow frame structure, and both sides of the frame are provided with raised pressing bars, and at least one side of the pressing bar is Shrinkage channels are hollowed out on adjacent frames.
- the beneficial effects of the present invention are: the mutually coupled grating wings and linkage wings are adopted to further reduce the up and down movement stroke on the premise of ensuring the balance and stability of pressing, so that the button structure can be made lighter and thinner; at the same time, the grating wings have the ability to trigger photoelectric signals Function, the linkage wing has the function of pressing and sounding, the stroke limit between the grating wing and the linkage wing, the overall stability, the pressing response is quick, it can provide a flat pressing feel, and the installation and removal are very convenient, suitable for industrial mass production.
- Fig. 1 is a schematic diagram of a key assembly structure of the present invention
- Fig. 2 is the key exploded view of the present invention
- Fig. 3 is the schematic structural view of the coupling seat in the present invention.
- Fig. 4 is the structural schematic diagram of the limit cover plate in the present invention.
- Fig. 5 is the schematic structural view of the assembled card holder in the present invention.
- Fig. 6 is a structural schematic diagram of the torsion spring connecting the grating wing and the linkage wing in the present invention
- Fig. 7 is a structural schematic diagram of the release state of the grating wing and the linkage wing in the present invention.
- Fig. 8 is a structural schematic diagram of the grating wing and the linkage wing in the pressing state of the present invention.
- Fig. 9 is a structural schematic diagram of the present invention omitting the keycap and the limit cover;
- Fig. 10 is a schematic diagram of the side structure of the grating wing and the linkage wing of the present invention.
- Fig. 11 is one of the partially enlarged schematic diagrams of A in Fig. 10;
- Fig. 12 is a partial enlarged schematic diagram of A in Fig. 10;
- Fig. 13 is a schematic structural view of the bottom of the keycap of the present invention.
- the specific embodiment of the present invention is an ultra-thin balanced press photoelectric key structure, which is used to be arranged as a key to output switch signals, and multiple keys can be used to form a keyboard or other related input devices, etc.
- the button of the present invention completes the action of the whole button by pressing the keycap 1, and each button includes a keycap 1, a light-emitting element 71 and a photosensitive element 72 arranged on the PCB board, and is used to make the photosensitive element 72 receive
- the light quantity of the light-emitting element 71 produces a variable grating structure, and pressing the keycap 1 can establish an electrical connection and realize a change of the light path, thereby performing a switch operation.
- the grating structure is a grating wing 4 coupled with a linkage wing 5.
- the linkage wing 5 and the grating wing 4 are coupled to move up and down synchronously.
- the keycap 1 is fastened on the upper part of the linkage wing 5 and the grating wing 4. .
- the static angle between the linkage wing 5 and the coupling arm of the grating wing 4 is an obtuse angle; when the keycap 1 is pressed to the bottom, the opening angle between the linkage wing 5 and the grating wing 4 gradually increases, and the coupling arm The maximum angle between them can be 180 degrees; when released, a reset torsion spring 8 with two warped arms is provided between the linkage wing 5 and the grating wing 4, and one warped arm of the reset torsion spring 8 provides upward elastic force for the linkage wing 5, The other warping arm provides upward elastic force for the grating wing 4 , and the reset torsion spring 8 provides upward elastic force for resetting the linkage wing 5 and the grating wing 4 .
- each coupling arm 43 protrudes with an anti-off fulcrum 41; the position corresponding to the anti-off fulcrum 41 on the coupling seat 2 is provided with a bracket 21, and the bracket 21 is provided with an accommodating notch 22, and the anti-off fulcrum 41 can be movably embedded in the corresponding accommodating notch 22 and be limited up and down.
- the accommodating notch 22 limits the upper and lower positions of the coupling arm 43. Since the coupling between the grating wing and the linkage wing is not a mutual locking relationship (as shown in FIG. 7 ), but a connection relationship that can be plugged in and out arbitrarily, In order to prevent the detachment of mutual coupling between the coupling arms, it is necessary to limit the horizontal position of the coupling arms. Therefore, in a specific embodiment of the present invention, a limit cover plate that can be fixed on the coupling seat 2 is also provided. 3. The limit cover 3 is provided with an anti-loosening groove 31 at a position corresponding to the accommodation notch 22 of the bracket 21. The anti-loosening groove 31 can prevent the fulcrum embedded in the accommodating notch 22 from detaching from the accommodating notch 22 , which prevents the two coupled arms from being separated from each other.
- the space-limiting cover 3 of the present application and the connection seat 2 are fixed in the following manner.
- a hook portion 32 is formed between the anti-off grooves 31 of the space-limiting cover 3, and the bracket 21 of the connection seat 2 is provided with a catch.
- the slot 23 corresponding to the hook 32, the limit cover 3 and the bracket 21 are connected together through the hook 32 and the slot 23.
- the limit cover 3 is also provided with a torsion spring 8 for accommodating the reset.
- the torsion spring groove 33 is also provided with a torsion spring 8 for accommodating the reset.
- the two coupling arms 43 that are coupled to each other in the button structure of the present application specifically, the end of one of the coupling arms 43 is configured as a concave coupling port 42, and the end of the other coupling arm 43 is configured to extend into the
- the coupling block 51 in the coupling port 42 is pressed at any position of the keycap 1
- the coupling arm 43 at one end is displaced downward, so that the coupling block 51/coupling port 42 rises, and the coupling arm 43 at the other end moves downward to release the key.
- the two coupling arms 43 reset upward together with the torsion spring, so that the two coupling arms 43 are the same up and down.
- a grating part 44 extends out from the grating wing 4 and its coupling arm in the same direction, and a light shielding plate 45 extends downward from the end of the grating part 44, and the light-emitting element and Photosensitive elements are located on both sides of the visor.
- a light-limiting plate 24 is also constructed on the connection seat 2, and the light-limiting plate 24 is provided with a light-through hole 25, and the light-emitting element and the photosensitive element are positioned at both sides of the light-limiting plate 24, and the light-shielding plate 45 is positioned at one side of the light-limiting plate 24; When the plate 45 descends, it can gradually cover the light hole 25 in a shearing manner so that the photosensitive element receives a linearly changing luminous flux.
- the linkage wing 5 As the linkage wing 5 that triggers the sound, the linkage wing 5 is provided with a sound-generating power storage part 53, and the sound-generating power-storage part 53 corresponds to a sound-generating torsion spring 52.
- the sounding torsion spring 52 is fixed in the fixed cavity 54;
- the sounding force storage part 53 is provided with a circular arc chamfer, and a force arm of the sounding torsion spring 52 extends to the position of the circular arc chamfer; when pressing the keycap 1
- the arc chamfering applies pressure to the force arm to store force downward, when the keycap 1 is pressed to a certain stroke, the force arm slides away from the arc chamfering and hits the limit cover 3 to make a knocking sound;
- the limit cover There is also a corresponding protruding hit part on the top, so that the middle section of the sounding torsion spring can hit the hit part, preventing the end of the sounding torsion spring from hitting and damaging
- the linkage wing 5 is provided with 53 sound-generating force storage parts, and the lower part of the linkage wing 5 is connected with a sound-generating torsion spring 52. Pressing any position of the keycap 1 can drive the linkage wing 5 to move downward to make the sound-generating torsion spring 52 store force downward, and release it. When the keycap 1 makes sound, the torsion spring 52 turns back and knocks the linkage wing 5 to make a sound.
- the PCB board 7 is provided with an assembly card seat 6 for fixing and installing the connection seat.
- the assembly card seat 6 is a hollow frame structure, and both sides in the frame are provided with warped clamping strips 61.
- the connection seat The edge of 2 is pressed by the clamping strip 61 and then fixed.
- the present invention hollows out a contraction groove 62 on the frame adjacent to the clamping strip 61 on at least one side.
- adopt tools such as press pliers to press the frame that has contraction through groove 62, can make frame can shrink and then make clamping bar 61 away from connection seat 2, greatly facilitate the removal and replacement of button, improve efficiency. If the contraction channel 62 is not provided, the entire frame is rigid and has no compressed space, and the above technical effects cannot be achieved.
- the keycap 1 is provided with a connecting portion 11 for connecting the top ends of the grating wing 4 and the linkage wing 5, and is also provided with a limit stopper 12 to prevent the keycap from shaking horizontally, the limit stopper 12 It can prevent the grating wing 4 and the interlocking wing 5 from shaking from side to side due to the movable gap on the top of the keycap due to the smaller distance between the two ends after the grating wing 4 and the linkage wing 5 are reset and moved up.
- an LED lamp 73 is also installed on the PCB, and the light emitted by the LED passes through the key cap to make the keys have an aesthetic feeling of light effect.
- This application is different from the general scissors button structure. It adopts mutually coupled grating wings and linkage wings, which further reduces the up and down movement stroke on the premise of ensuring the balance and stability of pressing, so that the key structure can be made lighter and thinner; at the same time, the grating wings have The function of triggering the photoelectric signal, the linkage wing has the function of pressing and sounding, the stroke limit between the grating wing and the linkage wing, the overall stability, the pressing response is quick, it can provide a flat pressing feel, and the installation and disassembly are very convenient, suitable for industrial mass production .
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- Push-Button Switches (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
Disclosed is an discloses an ultra thin photoelectric key structure having balanced pressing. An optical gate structure is an optical gate wing coupled to a linked wing, the linked wing and the optical gate wing being coupled to perform synchronous vertical movement; a return torsion spring having two raised legs is provided between the linked wing and the optical gate wing, one raised leg of the return torsion spring providing an upward elastic force for the linked wing, and the other raised leg providing an upward elastic force for the optical gate wing; a keycap is engaged at upper parts of the linked wing and the optical gate wing; and pressing any position of the keycap can drive the optical gate wing to downward, thereby causing the amount of light received by a photosensitive element to change, so as to generate a key signal. The present solution utilizes an optical gate wing and a linked wing that are coupled together, and vertical travel is further reduced while ensuring balanced and stable pressing, enabling a key structure to be lighter and thinner; also, the optical gate wing has a photoelectric signal trigger function, the linked wing has a sound emission upon pressing function, travel between the optical gate wing and the linked wing is limited, the present solution is stable as a whole, rapidly returns upon being pressed, and is suitable for industrial mass production.
Description
本发明涉及开关装置，尤其是一种光电开关，具体涉及一种超薄平衡按压光电按键结构，主要用于键盘等信号输入的外设装置。The invention relates to a switch device, in particular to a photoelectric switch, in particular to an ultra-thin balanced pressing photoelectric key structure, which is mainly used for peripheral devices such as keyboards and other signal input devices.
输入设备是指向计算机输入数据和信息的设备，是计算机与用户或其他设备通信的桥梁，诸如键盘等。键盘是由若干按键开关组合而成。The input device is a device that points to the computer to input data and information, and is a bridge for the computer to communicate with the user or other devices, such as a keyboard. The keyboard is composed of several key switches.
现有的电子设备越来越小型化，对键盘的轻薄要求也越来越高。以笔记本电脑为例，现在笔记本电脑重量只有1kg左右，整机厚度只有13mm左右，开关按键的键程只有1.5mm左右，为了满足电子设备的轻薄设计，影响厚度的最大障碍之一就是键盘的厚度，而影响键盘厚度的核心问题是按键开关的高度(厚度)，如何将按键开关做到超薄且不影响按压时候的平衡稳定性，确保使用者在按压键帽不同位置的时候都能准确稳定产生开关信号，这是本领域的技术难题。现有技术中，为了实现超薄按键开关的平衡稳定按压，基本上都采用键程较小的剪刀脚来实现，但剪刀脚本身的机构原理限制了无法再进一步的做到更薄。Existing electronic devices are becoming more and more miniaturized, and the requirements for thinner and lighter keyboards are also getting higher and higher. Take the notebook computer as an example. Now the weight of the notebook computer is only about 1kg, the thickness of the whole machine is only about 13mm, and the key stroke of the switch button is only about 1.5mm. In order to meet the thin and light design of electronic equipment, one of the biggest obstacles affecting the thickness is the thickness of the keyboard. , and the core issue that affects the thickness of the keyboard is the height (thickness) of the key switch. How to make the key switch ultra-thin without affecting the balance and stability when pressing, so as to ensure that the user can accurately and stably press the key cap at different positions. Generating the switch signal is a technical problem in this field. In the prior art, in order to realize the balanced and stable pressing of ultra-thin key switches, scissors feet with a small key stroke are basically used to achieve this. However, the mechanism principle of the scissors feet itself limits the ability to further make it thinner.
此外，现有技术中，为了实现更长的按键开关寿命、防尘防水等技术效果，大量的采用光电开关以取代传统的金属触片、触点等开关。光电开关是通过光栅改变受光元件所接收到的来自于发光元件的光量，以形成开关信号的一种开关。In addition, in the prior art, in order to achieve longer key switch life, dustproof and waterproof and other technical effects, a large number of photoelectric switches are used to replace traditional metal contacts, contacts and other switches. The photoelectric switch is a switch that changes the amount of light received by the light-receiving element from the light-emitting element through a grating to form a switch signal.
本发明的目的就是要将光电开关做到进一步的轻薄，使其按压的行程相对于剪刀脚进一步的缩小，且能满足平衡稳定的技术要求基于此目的而构设出一种全新适用于光电开关的结构。The purpose of the present invention is to further make the photoelectric switch thinner, make its pressing stroke smaller than the scissor feet, and meet the technical requirements of balance and stability. Based on this purpose, a new photoelectric switch suitable for Structure.
发明内容Contents of the invention
针对上述问题，本发明旨在提供一种有效降低按压距离的超薄平衡按压光电按键结构。In view of the above problems, the present invention aims to provide an ultra-thin balanced pressing photoelectric key structure that effectively reduces the pressing distance.
为实现该技术目的，本发明的方案是：一种超薄平衡按压光电按键结构，包括有键帽和设在PCB板上的发光元件及光敏元件，以及用于使光敏元件接收到发光元件的光量产生变量的光栅结构，其特征在于，所述光栅结构为一耦合有联动翼的光栅翼，联动翼与光栅翼耦合为同步上下动作；联动翼与光栅翼之间设具有两翘臂的复位扭簧，复位扭簧的一翘臂为联动翼提供向上复位弹力，另一翘臂为光栅翼提供向上复位弹力，所述键帽扣合在联动翼和光栅翼的上部；按压键帽任意位置均能驱动光栅翼下行进而使光敏元件接受的光量发生变化以产生按键信号。To achieve this technical purpose, the solution of the present invention is: an ultra-thin balanced pressing photoelectric key structure, including a keycap, a light-emitting element and a photosensitive element arranged on the PCB board, and a light-sensitive element for receiving the light-emitting element from the light-sensitive element. The grating structure with variable light generation is characterized in that the grating structure is a grating wing coupled with a linkage wing, and the linkage wing and the grating wing are coupled to move up and down synchronously; there are two warping arms between the linkage wing and the grating wing. Torsion spring, one warped arm of the reset torsion spring provides upward reset elastic force for the linkage wing, and the other warped arm provides upward reset elastic force for the grating wing, and the keycap is fastened on the upper part of the linkage wing and the grating wing; press any position of the keycap All of them can drive the grating wings to go down, so that the light received by the photosensitive element changes to generate a key signal.
作为优选，所述光栅翼和联动翼通过一联接座耦合，所述联动翼和光栅翼的两侧均延伸有耦合臂；耦合臂的一侧均凸出有防脱支点；所述联接座上对应于防脱支点的位置设置有支架，支架上设有容置槽口，所述防脱支点能够活动地嵌置于对应的容置槽口内并被上下限位。Preferably, the grating wing and the linkage wing are coupled through a coupling seat, and coupling arms are extended on both sides of the linkage wing and the grating wing; one side of the coupling arm protrudes with an anti-off fulcrum; A bracket is provided at a position corresponding to the anti-off fulcrum, and an accommodating notch is provided on the bracket, and the anti-off fulcrum can be movably embedded in the corresponding accommodating notch and limited up and down.
作为优选，还包括有能固定在联接座上的限位盖板，所述限位盖板在对应于支架容置槽口的部位构设有防脱槽，防脱槽能防止嵌置于 容置槽口内的支点脱离容置槽口。As a preference, it also includes a limit cover plate that can be fixed on the coupling seat, and the position limit cover plate is configured with an anti-off groove at a position corresponding to the notch of the bracket, and the anti-off groove can prevent it from being embedded in the accommodating notch. The fulcrum in the placement notch breaks away from the accommodation notch.
作为优选，相互耦合的两耦合臂，其中一耦合臂的末端被构设为凹字形的耦合口，另一耦合臂的末端则被构设为可以伸入到所述耦合口内的耦合块。Preferably, for the two coupling arms coupled with each other, the end of one coupling arm is configured as a concave-shaped coupling opening, and the end of the other coupling arm is configured as a coupling block that can extend into the coupling opening.
作为优选，所述防脱槽之间形成有卡勾部，所述支架上在对应卡勾部的位置设有卡槽，所述限位盖板与支架之间通过卡勾部与卡槽扣接固定，所述限位盖板上还设有用于容置复位扭簧的扭簧槽。Preferably, a hook portion is formed between the anti-falling grooves, and a slot is provided on the bracket at a position corresponding to the hook portion, and the space-limiting cover plate and the bracket are fastened by the hook portion and the slot. Connected and fixed, the limit cover plate is also provided with a torsion spring groove for accommodating the reset torsion spring.
作为优选，所述联动翼上设有发声蓄力部，所述发声蓄力部对应有一发声扭簧，限位盖板位于该发声扭簧的部位设有一固定容腔，所述发声扭簧被固定在该固定容腔内；所述发声蓄力部设有一圆弧倒角，所述发声扭簧的力臂延伸至该圆弧倒角位置；当按压键帽时圆弧倒角施加压力于力臂使其向下蓄力，键帽被按压至一定行程时力臂滑离圆弧倒角击打限位盖板发出敲击声；键帽被松开时圆弧倒角上移复位至力臂之上。Preferably, the linkage wing is provided with a sound-generating force storage part, and the sound-generating force-storage part corresponds to a sound-generating torsion spring, and the position-limiting cover is provided with a fixed cavity at the position of the sound-generating torsion spring, and the sound-generating torsion spring is It is fixed in the fixed cavity; the sounding force storage part is provided with a circular arc chamfer, and the force arm of the sounding torsion spring extends to the position of the circular arc chamfer; when the keycap is pressed, the circular arc chamfer exerts pressure on the When the keycap is pressed to a certain stroke, the force arm slides away from the arc chamfer and hits the limit cover to make a knocking sound; when the keycap is released, the arc chamfer moves upward and resets to above the arm of force.
作为优选，所述光栅翼与其耦合臂同向地延伸出一光栅部，所述光栅部的末端向下延伸出一遮光板，所述发光元件及光敏元件位于该遮光板的两侧。Preferably, a grating part extends from the grating wing and its coupling arm in the same direction, and a light-shielding plate extends downward from the end of the grating part, and the light-emitting element and the photosensitive element are located on both sides of the light-shielding plate.
作为优选，所述联接座上还构设一限光板，所述限光板上设有通光孔，发光元件及光敏元件位于该限光板的两侧，所述遮光板位于该限光板的一侧；遮光板下行时能够逐渐以剪切方式遮蔽通光孔以使光敏元件接受到线性渐变的光通量。Preferably, a light-limiting plate is also arranged on the connecting seat, and a light-through hole is arranged on the light-limiting plate, the light-emitting element and the photosensitive element are located on both sides of the light-limiting plate, and the light-shielding plate is located on one side of the light-limiting plate ; When the shading plate descends, it can gradually cover the light hole in a shearing manner so that the photosensitive element can receive a linearly changing luminous flux.
作为优选，所述键帽上设有用于联接光栅翼和联动翼顶端的连接 部，还设有防止键帽于光栅翼和联动翼顶端水平晃动的限位挡块。As a preference, the keycap is provided with a connection part for connecting the top of the grating wing and the linkage wing, and a limit stop that prevents the keycap from shaking horizontally on the top of the grating wing and the linkage wing.
作为优选，所述PCB板上设有用于固定安装联接座的组装卡座，所述组装卡座为中空框架结构，框架内的两侧设有翘起的卡压条，至少其中一侧的卡压条相邻的边框上镂空有收缩通槽。As a preference, the PCB board is provided with an assembly card seat for fixing and installing the connection seat. The assembly card seat is a hollow frame structure, and both sides of the frame are provided with raised pressing bars, and at least one side of the pressing bar is Shrinkage channels are hollowed out on adjacent frames.
本发明的有益效果是：采用相互耦合的光栅翼与联动翼，在确保按压平衡稳定的前提下进一步减小了上下移动行程，使按键结构能够做到更加轻薄；同时光栅翼具有触发光电信号的功能，联动翼具有按压发声的功能，光栅翼与联动翼之间行程限位，整体稳定，按压回复迅速，能够提供扁平的按压手感，且安装和拆卸非常方便，适合工业量产。The beneficial effects of the present invention are: the mutually coupled grating wings and linkage wings are adopted to further reduce the up and down movement stroke on the premise of ensuring the balance and stability of pressing, so that the button structure can be made lighter and thinner; at the same time, the grating wings have the ability to trigger photoelectric signals Function, the linkage wing has the function of pressing and sounding, the stroke limit between the grating wing and the linkage wing, the overall stability, the pressing response is quick, it can provide a flat pressing feel, and the installation and removal are very convenient, suitable for industrial mass production.
图1为本发明的按键组装结构示意图；Fig. 1 is a schematic diagram of a key assembly structure of the present invention;
图2为本发明的按键分解***图；Fig. 2 is the key exploded view of the present invention;
图3为本发明中的联接座的结构示意图；Fig. 3 is the schematic structural view of the coupling seat in the present invention;
图4为本发明中的限位盖板的结构示意图；Fig. 4 is the structural schematic diagram of the limit cover plate in the present invention;
图5为本发明中的组装卡座的结构示意图；Fig. 5 is the schematic structural view of the assembled card holder in the present invention;
图6为本发明中的光栅翼与联动翼连接扭簧的结构示意图；Fig. 6 is a structural schematic diagram of the torsion spring connecting the grating wing and the linkage wing in the present invention;
图7为本发明中的光栅翼与联动翼释放状态下的结构示意图；Fig. 7 is a structural schematic diagram of the release state of the grating wing and the linkage wing in the present invention;
图8为本发明中的光栅翼与联动翼按压状态下的结构示意图；Fig. 8 is a structural schematic diagram of the grating wing and the linkage wing in the pressing state of the present invention;
图9为本发明省略键帽和限位盖板的结构示意图；Fig. 9 is a structural schematic diagram of the present invention omitting the keycap and the limit cover;
图10为本发明光栅翼与联动翼的侧面结构示意图；Fig. 10 is a schematic diagram of the side structure of the grating wing and the linkage wing of the present invention;
图11为图10中A的局部放大示意图之一；Fig. 11 is one of the partially enlarged schematic diagrams of A in Fig. 10;
图12为图10中A的局部放大示意图之二；Fig. 12 is a partial enlarged schematic diagram of A in Fig. 10;
图13为本发明键帽底部的结构示意图。Fig. 13 is a schematic structural view of the bottom of the keycap of the present invention.
图中：1、键帽；11、连接部；12、限位挡块；2、联接座；21、支架、22、容置槽口；23、卡槽；24、限光板；25、通光孔；3、限位盖板；31、防脱槽；32、卡勾部；33、扭簧槽；34、固定容腔；4、光栅翼；41、防脱支点；42、耦合口；43、耦合臂；44、光栅部；45；遮光板；5、联动翼；51、耦合块；52、发声扭簧；53、发声蓄力部；6、组装卡座；61、卡压条；62、收缩通槽；7、PCB板；71、发光元件；72、光敏元件；73、LED灯；8、复位扭簧。In the figure: 1, keycap; 11, connection part; 12, limit stopper; 2, connecting seat; 21, bracket, 22, accommodating notch; 23, card slot; 24, light-limiting plate; 25, light-through Hole; 3, limit cover plate; 31, anti-off groove; 32, hook part; 33, torsion spring groove; 34, fixed cavity; 4, grating wing; 41, anti-off fulcrum; 42, coupling port; 43 , coupling arm; 44, grating part; 45; shading plate; 5, linkage wing; 51, coupling block; 52, sounding torsion spring; 53, sounding power storage part; 7. PCB board; 71. light-emitting element; 72. photosensitive element; 73. LED lamp; 8. reset torsion spring.
下面结合附图和具体实施例对本发明做进一步详细说明。The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
如图1-13所示，本发明所述的具体实施例为一种超薄平衡按压光电按键结构，用于被布置成按键输出开关信号，多个按键可以用于组合形成键盘或是其他相关的输入设备等。As shown in Figures 1-13, the specific embodiment of the present invention is an ultra-thin balanced press photoelectric key structure, which is used to be arranged as a key to output switch signals, and multiple keys can be used to form a keyboard or other related input devices, etc.
本发明的按键是通过按压键帽1来完成整个按键的动作，每个按键皆包括有键帽1和设在PCB板上的发光元件71及光敏元件72，以及用于使光敏元件72接收到发光元件71的光量产生变量的光栅结构，按压键帽1能够建立电连接以及实现光路径的变化，由此执行开关操作。The button of the present invention completes the action of the whole button by pressing the keycap 1, and each button includes a keycap 1, a light-emitting element 71 and a photosensitive element 72 arranged on the PCB board, and is used to make the photosensitive element 72 receive The light quantity of the light-emitting element 71 produces a variable grating structure, and pressing the keycap 1 can establish an electrical connection and realize a change of the light path, thereby performing a switch operation.
如图7-8所示，光栅结构为一耦合有联动翼5的光栅翼4，联动翼5与光栅翼4耦合为同步上下动作，键帽1扣合在联动翼5和光栅翼4的上部。在静止状态时，联动翼5与光栅翼4的耦合臂之间的静 止角度呈钝角；在按压键帽1至底部时，联动翼5与光栅翼4之间的打开角度逐渐增大，耦合臂之间的最大角度能呈180度；释放时，联动翼5与光栅翼4之间设有一具有两翘臂的复位扭簧8，复位扭簧8的一翘臂为联动翼5提供向上弹力，另一翘臂为光栅翼4提供向上弹力，复位扭簧8提供使联动翼5与光栅翼4复位的向上弹力。As shown in Figure 7-8, the grating structure is a grating wing 4 coupled with a linkage wing 5. The linkage wing 5 and the grating wing 4 are coupled to move up and down synchronously. The keycap 1 is fastened on the upper part of the linkage wing 5 and the grating wing 4. . In the static state, the static angle between the linkage wing 5 and the coupling arm of the grating wing 4 is an obtuse angle; when the keycap 1 is pressed to the bottom, the opening angle between the linkage wing 5 and the grating wing 4 gradually increases, and the coupling arm The maximum angle between them can be 180 degrees; when released, a reset torsion spring 8 with two warped arms is provided between the linkage wing 5 and the grating wing 4, and one warped arm of the reset torsion spring 8 provides upward elastic force for the linkage wing 5, The other warping arm provides upward elastic force for the grating wing 4 , and the reset torsion spring 8 provides upward elastic force for resetting the linkage wing 5 and the grating wing 4 .
如图9所示，光栅翼4和联动翼5通过一联接座2耦合，联动翼5和光栅翼4的两侧均延伸有耦合臂43，在本发明中的具体实施例中总计四条耦合臂；每个耦合臂43的一侧均凸出有防脱支点41；联接座2上对应于防脱支点41的位置设置有支架21，在支架21上设有容置槽口22，防脱支点41能够活动地嵌置于对应的容置槽口22内并被上下限位。As shown in Figure 9, the grating wing 4 and the linkage wing 5 are coupled through a coupling seat 2, and coupling arms 43 are extended on both sides of the linkage wing 5 and the grating wing 4, and there are four coupling arms in total in the specific embodiment of the present invention. One side of each coupling arm 43 protrudes with an anti-off fulcrum 41; the position corresponding to the anti-off fulcrum 41 on the coupling seat 2 is provided with a bracket 21, and the bracket 21 is provided with an accommodating notch 22, and the anti-off fulcrum 41 can be movably embedded in the corresponding accommodating notch 22 and be limited up and down.
容置槽口22对耦合臂43的上下进行限位，由于光栅翼和联动翼之间的耦合并非是相互锁定的关系(如图7所示的)，而是可以任意插拔的连接关系，为了防止耦合臂之间相互耦合的脱离，有必要对耦合臂进行水平位置方向的限位，因此，在本发明的具体实施例中，还设有能固定在联接座2上的限位盖板3，限位盖板3在对应于支架21容置槽口22的部位构设有防脱槽31，防脱槽31能防止嵌置于容置槽口22内的支点脱离容置槽口22，也就实现了防止相互耦合的两耦合臂之间相脱离。The accommodating notch 22 limits the upper and lower positions of the coupling arm 43. Since the coupling between the grating wing and the linkage wing is not a mutual locking relationship (as shown in FIG. 7 ), but a connection relationship that can be plugged in and out arbitrarily, In order to prevent the detachment of mutual coupling between the coupling arms, it is necessary to limit the horizontal position of the coupling arms. Therefore, in a specific embodiment of the present invention, a limit cover plate that can be fixed on the coupling seat 2 is also provided. 3. The limit cover 3 is provided with an anti-loosening groove 31 at a position corresponding to the accommodation notch 22 of the bracket 21. The anti-loosening groove 31 can prevent the fulcrum embedded in the accommodating notch 22 from detaching from the accommodating notch 22 , which prevents the two coupled arms from being separated from each other.
本申请的限位盖板3与联接座2之间通过以下方式固定，在限位盖板3的防脱槽31之间形成有卡勾部32，联接座2的支架21上设有与卡勾部32对应的卡槽23，限位盖板3与支架21之间通过卡勾 部32与卡槽23连接在一起，此外，限位盖板3上还设有用于容置复位扭簧8的扭簧槽33。The space-limiting cover 3 of the present application and the connection seat 2 are fixed in the following manner. A hook portion 32 is formed between the anti-off grooves 31 of the space-limiting cover 3, and the bracket 21 of the connection seat 2 is provided with a catch. The slot 23 corresponding to the hook 32, the limit cover 3 and the bracket 21 are connected together through the hook 32 and the slot 23. In addition, the limit cover 3 is also provided with a torsion spring 8 for accommodating the reset. The torsion spring groove 33.
本申请按键结构中相互耦合的两耦合臂43，具体地，其中一耦合臂43的末端被构设为凹字形的耦合口42，另一耦合臂43的末端则被构设为可以伸入到所述耦合口42内的耦合块51，按压键帽1任意位置，其中一端耦合臂43向下位移，使耦合块51/耦合口42上升而另一端耦合臂43随着向下位移，释放键帽1时，两耦合臂43随扭簧一同复位向上，实现两耦合臂43同上同下。The two coupling arms 43 that are coupled to each other in the button structure of the present application, specifically, the end of one of the coupling arms 43 is configured as a concave coupling port 42, and the end of the other coupling arm 43 is configured to extend into the When the coupling block 51 in the coupling port 42 is pressed at any position of the keycap 1, the coupling arm 43 at one end is displaced downward, so that the coupling block 51/coupling port 42 rises, and the coupling arm 43 at the other end moves downward to release the key. When the cap is 1, the two coupling arms 43 reset upward together with the torsion spring, so that the two coupling arms 43 are the same up and down.
如图10-12所示，作为触发光电信号的光栅翼4，光栅翼4与其耦合臂同向地延伸出一光栅部44，光栅部44的末端向下延伸出一遮光板45，发光元件及光敏元件位于该遮光板的两侧。联接座2上还构设一限光板24，限光板24上设有通光孔25，发光元件及光敏元件位于该限光板24的两侧，遮光板45位于该限光板24的一侧；遮光板45下行时能够逐渐以剪切方式遮蔽通光孔25以使光敏元件接受到线性渐变的光通量。As shown in Figure 10-12, as the grating wing 4 that triggers the photoelectric signal, a grating part 44 extends out from the grating wing 4 and its coupling arm in the same direction, and a light shielding plate 45 extends downward from the end of the grating part 44, and the light-emitting element and Photosensitive elements are located on both sides of the visor. A light-limiting plate 24 is also constructed on the connection seat 2, and the light-limiting plate 24 is provided with a light-through hole 25, and the light-emitting element and the photosensitive element are positioned at both sides of the light-limiting plate 24, and the light-shielding plate 45 is positioned at one side of the light-limiting plate 24; When the plate 45 descends, it can gradually cover the light hole 25 in a shearing manner so that the photosensitive element receives a linearly changing luminous flux.
作为触发声音的联动翼5，联动翼5上设有发声蓄力部53，发声蓄力部53对应有一发声扭簧52，限位盖板3位于该发声扭簧52的部位设有一固定容腔54，发声扭簧52被固定在该固定容腔54内；发声蓄力部53设有一圆弧倒角，发声扭簧52的一力臂延伸至该圆弧倒角位置；当按压键帽1时圆弧倒角施加压力于力臂使其向下蓄力，键帽1被按压至一定行程时力臂滑离圆弧倒角击打限位盖板3发出敲击声；限位盖板上还设有对应凸出的受击部，使发声扭簧的中间段能 打在受击部上，防止发声扭簧的端部击打而损坏限位盖板，释放键帽时圆弧倒角上移复位至力臂之上。As the linkage wing 5 that triggers the sound, the linkage wing 5 is provided with a sound-generating power storage part 53, and the sound-generating power-storage part 53 corresponds to a sound-generating torsion spring 52. 54, the sounding torsion spring 52 is fixed in the fixed cavity 54; the sounding force storage part 53 is provided with a circular arc chamfer, and a force arm of the sounding torsion spring 52 extends to the position of the circular arc chamfer; when pressing the keycap 1 When the arc chamfering applies pressure to the force arm to store force downward, when the keycap 1 is pressed to a certain stroke, the force arm slides away from the arc chamfering and hits the limit cover 3 to make a knocking sound; the limit cover There is also a corresponding protruding hit part on the top, so that the middle section of the sounding torsion spring can hit the hit part, preventing the end of the sounding torsion spring from hitting and damaging the limit cover, and the arc is reversed when the keycap is released. Move the angle up and reset to above the moment arm.
联动翼5上设有发声蓄力部53分，联动翼5的下部连接有一发声扭簧52，按压键帽1任意位置均能驱动联动翼5下行使发声扭簧52向下蓄力，松开键帽1时发声扭簧52回位敲打联动翼5发出声响。The linkage wing 5 is provided with 53 sound-generating force storage parts, and the lower part of the linkage wing 5 is connected with a sound-generating torsion spring 52. Pressing any position of the keycap 1 can drive the linkage wing 5 to move downward to make the sound-generating torsion spring 52 store force downward, and release it. When the keycap 1 makes sound, the torsion spring 52 turns back and knocks the linkage wing 5 to make a sound.
如图5所示，PCB板7上设有用于固定安装联接座的组装卡座6，组装卡座6为中空框架结构，框架内的两侧设有翘起的卡压条61，安装时联接座2的边沿被卡压条61压住进而被固定.为了便于更换时取出联接座2，本发明在至少其中一侧的卡压条61相邻的边框上镂空有收缩通槽62，当需要取出联接座2时，采用压钳等工具夹压具有收缩通槽62的边框，能够使边框能够得以收缩进而使卡压条61远离联接座2，极大的方便了按键的拆除和更换，提高效率。如果不设置收缩通槽62，则整个边框为刚性的不具有被压缩的空间，无法达到上述技术效果。As shown in Figure 5, the PCB board 7 is provided with an assembly card seat 6 for fixing and installing the connection seat. The assembly card seat 6 is a hollow frame structure, and both sides in the frame are provided with warped clamping strips 61. When installing, the connection seat The edge of 2 is pressed by the clamping strip 61 and then fixed. In order to facilitate the removal of the coupling seat 2 during replacement, the present invention hollows out a contraction groove 62 on the frame adjacent to the clamping strip 61 on at least one side. When it is necessary to take out the coupling seat At 2 o'clock, adopt tools such as press pliers to press the frame that has contraction through groove 62, can make frame can shrink and then make clamping bar 61 away from connection seat 2, greatly facilitate the removal and replacement of button, improve efficiency. If the contraction channel 62 is not provided, the entire frame is rigid and has no compressed space, and the above technical effects cannot be achieved.
此外，如图13所示，键帽1上设有用于联接光栅翼4和联动翼5顶端的连接部11，还设有防止键帽水平晃动的限位挡块12，该限位挡块12能够防止光栅翼4和联动翼5因复位上移后，两端部的距离变小导致的键帽在上面因活动间隙而发生左右晃动。In addition, as shown in Figure 13, the keycap 1 is provided with a connecting portion 11 for connecting the top ends of the grating wing 4 and the linkage wing 5, and is also provided with a limit stopper 12 to prevent the keycap from shaking horizontally, the limit stopper 12 It can prevent the grating wing 4 and the interlocking wing 5 from shaking from side to side due to the movable gap on the top of the keycap due to the smaller distance between the two ends after the grating wing 4 and the linkage wing 5 are reset and moved up.
为了使得按键具有炫彩光效，在PCB板上还安装有LED灯73，该LED发出的光透过键帽使按键具有光效美感。In order to make the keys have a colorful light effect, an LED lamp 73 is also installed on the PCB, and the light emitted by the LED passes through the key cap to make the keys have an aesthetic feeling of light effect.
本申请不同于一般的剪刀脚按键结构，采用相互耦合的光栅翼与联动翼，在确保按压平衡稳定的前提下进一步减小了上下移动行程， 使按键结构能够做到更加轻薄；同时光栅翼具有触发光电信号的功能，联动翼具有按压发声的功能，光栅翼与联动翼之间行程限位，整体稳定，按压回复迅速，能够提供扁平的按压手感，且安装和拆卸非常方便，适合工业量产。This application is different from the general scissors button structure. It adopts mutually coupled grating wings and linkage wings, which further reduces the up and down movement stroke on the premise of ensuring the balance and stability of pressing, so that the key structure can be made lighter and thinner; at the same time, the grating wings have The function of triggering the photoelectric signal, the linkage wing has the function of pressing and sounding, the stroke limit between the grating wing and the linkage wing, the overall stability, the pressing response is quick, it can provide a flat pressing feel, and the installation and disassembly are very convenient, suitable for industrial mass production .
以上所述，仅为本发明的较佳实施例，并不用以限制本发明，凡是依据本发明的技术实质对以上实施例所作的任何细微修改、等同替换和改进，均应包含在本发明技术方案的保护范围之内。The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Any minor modifications, equivalent replacements and improvements made to the above embodiments according to the technical essence of the present invention shall be included in the technical aspects of the present invention. within the scope of protection of the program.
Claims (10)
- 一种超薄平衡按压光电按键结构，包括有键帽和设在PCB板上的发光元件及光敏元件，以及用于使光敏元件接收到发光元件的光量产生变量的光栅结构，其特征在于，所述光栅结构为一耦合有联动翼的光栅翼，联动翼与光栅翼耦合为同步上下动作；联动翼与光栅翼之间设具有两翘臂的复位扭簧，复位扭簧的一翘臂为联动翼提供向上复位弹力，另一翘臂为光栅翼提供向上复位弹力，所述键帽扣合在联动翼和光栅翼的上部；按压键帽任意位置均能驱动光栅翼下行进而使光敏元件接受的光量发生变化以产生按键信号。An ultra-thin balanced pressing photoelectric button structure, including a keycap, a light-emitting element and a photosensitive element arranged on a PCB board, and a grating structure used to make the light quantity of the light-sensitive element received by the light-emitting element variable, and is characterized in that the The grating structure is a grating wing coupled with a linkage wing. The linkage wing and the grating wing are coupled to move up and down synchronously; The wing provides an upward return elastic force, and the other arm provides an upward return elastic force for the grating wing, and the keycap is fastened on the upper part of the linkage wing and the grating wing; pressing any position of the keycap can drive the grating wing to move downward to make the photosensitive element accept The amount of light changes to generate a key press signal.
- 根据权利要求1所述的超薄平衡按压光电按键结构，其特征在于，所述光栅翼和联动翼通过一联接座耦合，所述联动翼和光栅翼的两侧均延伸有耦合臂；耦合臂的一侧均凸出有防脱支点；所述联接座上对应于防脱支点的位置设置有支架，支架上设有容置槽口，所述防脱支点能够活动地嵌置于对应的容置槽口内并被上下限位。The ultra-thin balanced pressing photoelectric button structure according to claim 1, wherein the grating wing and the linkage wing are coupled through a coupling seat, and coupling arms are extended on both sides of the linkage wing and the grating wing; the coupling arm One side of each protrudes with an anti-off fulcrum; the position corresponding to the anti-off fulcrum is provided with a bracket, and the bracket is provided with an accommodating notch, and the anti-off fulcrum can be movably embedded in the corresponding accommodating Set in the notch and be limited up and down.
- 根据权利要求2所述的超薄平衡按压光电按键结构，其特征在于，还包括有能固定在联接座上的限位盖板，所述限位盖板在对应于支架容置槽口的部位构设有防脱槽，防脱槽能防止嵌置于容置槽口内的支点脱离容置槽口。The ultra-thin balanced pressing photoelectric button structure according to claim 2, characterized in that it also includes a limit cover plate that can be fixed on the connection seat, and the limit cover plate is at a position corresponding to the receiving notch of the bracket The structure is provided with an anti-loosening groove, which can prevent the fulcrum embedded in the accommodating notch from deviating from the accommodating notch.
- 根据权利要求3所述的超薄平衡按压光电按键结构，其特征在于，相互耦合的两耦合臂，其中一耦合臂的末端被构设为凹字形的耦合口，另一耦合臂的末端则被构设为可以伸入到所述耦合口内的耦合块。According to the ultra-thin balanced pressing photoelectric button structure according to claim 3, it is characterized in that, for the two coupling arms coupled to each other, the end of one of the coupling arms is configured as a concave coupling port, and the end of the other coupling arm is configured as a concave coupling port. It is configured as a coupling block that can extend into the coupling opening.
- 根据权利要求3所述的超薄平衡按压光电按键结构，其特征 在于，所述防脱槽之间形成有卡勾部，所述支架上在对应卡勾部的位置设有卡槽，所述限位盖板与支架之间通过卡勾部与卡槽扣接固定，所述限位盖板上还设有用于容置复位扭簧的扭簧槽。According to the ultra-thin balanced pressing photoelectric key structure according to claim 3, it is characterized in that, a hook portion is formed between the anti-dropping grooves, and a hook portion is provided on the bracket at a position corresponding to the hook portion, and the The position-limiting cover and the bracket are fastened and fixed by hooks and slots, and the position-limiting cover is also provided with a torsion spring groove for accommodating a reset torsion spring.
- 根据权利要求3所述的超薄平衡按压光电按键结构，其特征在于，所述联动翼上设有发声蓄力部，所述发声蓄力部对应有一发声扭簧，限位盖板位于该发声扭簧的部位设有一固定容腔，所述发声扭簧被固定在该固定容腔内；所述发声蓄力部设有一圆弧倒角，所述发声扭簧的力臂延伸至该圆弧倒角位置；当按压键帽时圆弧倒角施加压力于力臂使其向下蓄力，键帽被按压至一定行程时力臂滑离圆弧倒角击打限位盖板发出敲击声；键帽被松开时圆弧倒角上移复位至力臂之上。According to the ultra-thin balanced pressing photoelectric key structure according to claim 3, it is characterized in that, the linkage wing is provided with a sound-generating force storage part, and the sound-generating force-storing part corresponds to a sound-generating torsion spring, and the limit cover is located on the sound-generating force-storage part. The part of the torsion spring is provided with a fixed cavity, and the sounding torsion spring is fixed in the fixed cavity; the sounding force storage part is provided with a circular arc chamfer, and the force arm of the sounding torsion spring extends to the arc Chamfering position; when the keycap is pressed, the arc chamfering exerts pressure on the force arm to store force downward. When the keycap is pressed to a certain stroke, the force arm slides away from the arc chamfering and hits the limit cover to send a knock sound; when the keycap is released, the arc chamfer moves upward and resets to above the force arm.
- 根据权利要求3所述的超薄平衡按压光电按键结构，其特征在于，所述光栅翼与其耦合臂同向地延伸出一光栅部，所述光栅部的末端向下延伸出一遮光板，所述发光元件及光敏元件位于该遮光板的两侧。According to the ultra-thin balanced pressing photoelectric key structure according to claim 3, it is characterized in that, a grating part extends from the grating wing and its coupling arm in the same direction, and a light shield extends downward from the end of the grating part, so that The light-emitting element and photosensitive element are located on both sides of the light-shielding plate.
- 根据权利要求7所述的超薄平衡按压光电按键结构，其特征在于，所述联接座上还构设一限光板，所述限光板上设有通光孔，发光元件及光敏元件位于该限光板的两侧，所述遮光板位于该限光板的一侧；遮光板下行时能够逐渐以剪切方式遮蔽通光孔以使光敏元件接受到线性渐变的光通量。According to the ultra-thin balanced pressing photoelectric button structure according to claim 7, it is characterized in that a light-limiting plate is also configured on the connecting seat, and a light-through hole is arranged on the light-limiting plate, and the light-emitting element and the photosensitive element are located in the light-limiting plate. On both sides of the light plate, the light shielding plate is located on one side of the light limiting plate; when the light shielding plate descends, it can gradually cover the light hole in a shearing manner so that the photosensitive element can receive a linearly changing luminous flux.
- 根据权利要求1-8中任一项所述的超薄平衡按压光电按键结构，其特征在于，所述键帽上设有用于联接光栅翼和联动翼顶端的连 接部，还设有防止键帽于光栅翼和联动翼顶端水平晃动的限位挡块。According to the ultra-thin balanced pressing photoelectric key structure according to any one of claims 1-8, it is characterized in that the key cap is provided with a connecting part for connecting the top of the grating wing and the linkage wing, and is also provided with a key cap to prevent the Limit stoppers that swing horizontally at the tops of the grating wings and the linkage wings.
- 根据权利要求1-8中任一项所述的超薄平衡按压光电按键结构，其特征在于，所述PCB板上设有用于固定安装联接座的组装卡座，所述组装卡座为中空框架结构，框架内的两侧设有翘起的卡压条，至少其中一侧的卡压条相邻的边框上镂空有收缩通槽。According to the ultra-thin balanced pressing photoelectric button structure according to any one of claims 1-8, it is characterized in that, the PCB board is provided with an assembly card seat for fixing and installing the connection seat, and the assembly card seat is a hollow frame structure, the two sides of the frame are provided with upturned pressing bars, and at least one side of the pressing bars adjacent to the frame is hollowed out with shrinkage slots.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111067452.8 | 2021-09-13 | ||
| CN202111067452.8A CN113644906A (en) | 2021-09-13 | 2021-09-13 | Ultrathin balance pressing photoelectric key structure |
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| WO2023035092A1 true WO2023035092A1 (en) | 2023-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/CN2021/000228 WO2023035092A1 (en) | 2021-09-13 | 2021-11-26 | Ultra thin photoelectric key structure having balanced pressing |
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| Country | Link |
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| CN (1) | CN113644906A (en) |
| TW (1) | TWM626806U (en) |
| WO (1) | WO2023035092A1 (en) |
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| CN113644906A (en) * | 2021-09-13 | 2021-11-12 | 广东瑞讯电子科技有限公司 | Ultrathin balance pressing photoelectric key structure |
| CN114864319A (en) * | 2022-04-18 | 2022-08-05 | 广东瑞讯电子科技有限公司 | Ultra-thin balance key |
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| CN216162698U (en) * | 2021-09-13 | 2022-04-01 | 广东瑞讯电子科技有限公司 | Ultra-thin balanced pressing photoelectric key structure |
-
2021
- 2021-09-13 CN CN202111067452.8A patent/CN113644906A/en active Pending
- 2021-11-25 TW TW110213981U patent/TWM626806U/en unknown
- 2021-11-26 WO PCT/CN2021/000228 patent/WO2023035092A1/en unknown
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|---|---|---|---|---|
| US20100108482A1 (en) * | 2007-10-29 | 2010-05-06 | Research In Motion Limited | Illuminated key-pad assembly |
| CN105261507A (en) * | 2015-08-19 | 2016-01-20 | 东莞市美光达光学科技有限公司 | Thin keyboard on-off key group structure generating press touch feel and rebounded rapidly |
| CN111180233A (en) * | 2020-02-13 | 2020-05-19 | 东莞市名键电子科技有限公司 | Mechanical key of ultrathin X-shaped balance frame |
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|---|---|
| TWM626806U (en) | 2022-05-11 |
| CN113644906A (en) | 2021-11-12 |
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