CN105375913A - Reflection-type opto-mechanical keyboard switch - Google Patents
Reflection-type opto-mechanical keyboard switch Download PDFInfo
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- CN105375913A CN105375913A CN201510828894.8A CN201510828894A CN105375913A CN 105375913 A CN105375913 A CN 105375913A CN 201510828894 A CN201510828894 A CN 201510828894A CN 105375913 A CN105375913 A CN 105375913A
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Abstract
The invention relates to a reflection-type opto-mechanical keyboard switch. The reflection-type opto-mechanical keyboard switch comprises an LED (Light-Emitting Diode) lamp, a photoelectric sensor, a PCB (Printed Circuit Board), a fixed iron plate, a base, a spring, a clip, a slider, a central spindle and an upper cover; the LED lamp and the photoelectric sensor are arranged on the PCB; the PCB and the fixed iron plate are arranged in parallel; the base is clamped on the fixed iron plate, and an annular bulge at the middle part of the base is screwed in a round hole at the middle part of the PCB; the chip is installed on the base; the slider is buckled on the base, and the side surface of the slider is provided with a reflection block; the central spindle comprises a key, a square plate and a columnar bulge which are located on a same axis, wherein the key is fixedly arranged on a top surface of the square plate and the columnar bulge is fixedly arranged on a bottom surface of the square plate; the square plate covers a top surface of the slider; a top end of the annular bulge penetrates through a first center hole at the middle part of the slider to be connected with one end of the spring, and the other end of the spring is connected with a bottom end of the columnar bulge; and the upper cover is buckled on the base and the key penetrates through a second center hole at the middle part of the upper cover.
Description
Technical field
The invention belongs to field of photoelectric technology, be specifically related to a kind of reflection type photoelectricity mechanical keyboard switch.
Background technology
Optoelectronic switch is the abbreviation of photoelectric proximity switch, and it utilizes object blocking or reflecting light beam, and what change photoelectric sensor is subject to light state, thus is switched on or switched off the device of circuit.The optoelectronic switch initial stage is mainly used in the fields such as object detection, counting, intensity of illumination induction and colour recognition.Along with the development of photoelectron technology and the reduction of related device cost, optoelectronic switch also instead of common contact formula switch in certain fields, as some contact witch is optoelectronic switch.
Relative to common contact formula switch, optoelectronic switch has the advantage such as fast response time, long service life, but also there is following problem in existing optoelectronic switch: 1) photoelectric sensor is exposed in air and is vulnerable to dust impact, although set up the impact that dust cover is conducive to reducing dust, but set up dust cover and can reduce photosensitive property, and dust boot surface still can covered with dust, needs often to clear up.2) do not have sense of touch and the sound of common contact formula switch when optoelectronic switch uses, part user feels uncomfortable.3) some optoelectronic switch arranges sounding electronic device, realizes the function of sounding during switch, but this type of switch structure more complicated, volume are large and cost is high.
Summary of the invention
In order to solve the problems referred to above that prior art exists, the invention provides a kind of reflection type photoelectricity mechanical keyboard switch, it has, and volume is little, the advantage of the simple and low cost of manufacture of structure.
The technical solution adopted in the present invention is: a kind of reflection type photoelectricity mechanical keyboard switch comprises LED, photoelectric sensor, PCB, fixing iron plate, base, spring, shell fragment, slide block, axle core and upper cover; A circular hole is offered at the positive middle part of described PCB, and described circular offers first hole and second hole; Third hole is offered in the middle part of described fixing iron plate; The middle part of described base arranges an annular projection, offers LED installing hole, photoelectric sensor installing hole and shell fragment and install hole slot around described annular projection; The first centre bore is offered at the middle part of described slide block, and the side of described slide block arranges a reflex block; Described axle core comprises the button be positioned on same axis, square plate and columnar projections, and described button is fixedly installed on the end face of described side's plate, and described columnar projections is fixedly installed on the bottom surface of described side's plate; The second centre bore is offered at the middle part of described upper cover, and described second centre bore mates with button and arranges; Described PCB and fixing iron plate be arranged in parallel, and described base is fastened in described third hole, and the bottom of described annular projection is screwed in described circular hole; The bottom of described LED is fastened in described first hole, and its top is fastened in described LED installing hole; The bottom of described photoelectric sensor is fastened in described second hole, and its top is fastened in described photoelectric sensor installing hole; Described shell fragment is arranged on described shell fragment and installs in hole slot; Described slide block is fastened on described base, and can vertically with described base generation relative motion; The top of described annular projection through described first centre bore, and is connected with one end of described spring; Described side's plate covers at described slide block end face, and the bottom of described columnar projections is connected with the other end of described spring; Described button is through described second centre bore, and described upper cover is fastened on described base.
Further, be provided with elasticity footing bottom described upper cover, described chassis outer side is provided with button pin, and by described elasticity footing and button pin, described upper cover is fixedly connected with base.
Further, described LED adopts paster LED.
Further, described button adopts cross section to be in-line, cross or leg-of-mutton column structure.
Further, described button adopts non-soldering tin point mounting means.
Owing to adopting above technical scheme, beneficial effect of the present invention is: reflection type photoelectricity mechanical keyboard switch of the present invention had both had optoelectronic switch long service life, response time fast advantage, remain again operation feeling and the sound of conventional contact formula switch, dust in air and steam can be avoided the harmful effect of optoelectronic switch simultaneously.The present invention has that volume is little, structure is simple, low cost of manufacture and button specification change advantage easily.
Accompanying drawing explanation
Fig. 1 is the explosive view of reflection type photoelectricity mechanical keyboard switch of the present invention;
Fig. 2 is the assembly structure schematic diagram of reflection type photoelectricity mechanical keyboard switch of the present invention;
Fig. 3 is the structural representation of base in reflection type photoelectricity mechanical keyboard switch of the present invention.
In figure: 1, LED; 2, photoelectric sensor; 3, PCB; 4, fixing iron plate; 5, base; 6, spring; 7, shell fragment; 8, slide block; 9, axle core; 10, upper cover; 31, circular hole; 32, first hole; 33, second hole; 41, third hole; 51, annular projection; 52, LED installing hole; 53, photoelectric sensor installing hole; 54, shell fragment installs hole slot; 81, the first centre bore; 82, reflex block; 91, button; 92, square plate; 93, columnar projections; 101, the second centre bore.
Embodiment
As depicted in figs. 1 and 2, the invention provides a kind of reflection type photoelectricity mechanical keyboard switch, it comprises LED 1, photoelectric sensor 2, PCB 3, fixing iron plate 4, base 5, spring 6, shell fragment 7, slide block 8, axle core 9 and upper cover 10.
A circular hole 31 is offered at the positive middle part of PCB 3, offers first hole 32 and second hole 33 around circular hole 31.
Third hole 41 is offered in the middle part of fixing iron plate 4.
As shown in Figure 3, the middle part of base 5 arranges an annular projection 51, offers LED installing hole 52, photoelectric sensor installing hole 53 and shell fragment and install hole slot 54 around annular projection 51.
The first centre bore 81 is offered at the middle part of slide block 8, and the side of slide block 8 arranges a reflex block 82.
Axle core 9 comprises the button 91 be positioned on same axis, square plate 92 and columnar projections 93, wherein, on the end face of button 91 side of being fixedly installed on plate 92, on the bottom surface of columnar projections 93 side of being fixedly installed on plate 92.
The middle part of upper cover 10 is offered the second centre bore 101, second centre bore 101 and is mated with button 91 and arrange.
PCB 3 and fixing iron plate 4 be arranged in parallel, and base 5 is fastened in third hole 41, and the bottom of annular projection 51 is screwed in the circular hole 31 in PCB 3.The bottom of LED 1 is fastened in first hole 32, and its top is fastened in LED installing hole 52; The bottom of photoelectric sensor 2 is fastened in second hole 33, and its top is fastened in photoelectric sensor installing hole 53.Shell fragment 7 is arranged on shell fragment and installs in hole slot 54.Slide block 8 is fastened on base 5, and vertically with base 5, relative motion can occur.The first centre bore 81 of slide block 8 is passed on the top of annular projection 51, and is connected with one end of spring 6.Square plate 92 in axle core 9 covers at slide block 8 end face, and the bottom of columnar projections 93 is connected with the other end of spring 6.Button 91 is through the second centre bore 101, and upper cover 10 is fastened on base 5.Particularly, be provided with elasticity footing bottom upper cover 10, base 5 arranged outside has button pin, by being inserted in button pin by elasticity footing, upper cover 10 being fixedly connected with base 5, thus preventing dust and moisture to LED 1 and photoelectric sensor 2.
In above-described embodiment, LED 1 adopts paster LED, and paster LED has that shape is little, lightweight, power consumption is little, fast response time and reliability high.
In above-described embodiment, the shape of button 91 can change, and it can adopt cross section to be in-line, cross or leg-of-mutton column structure.Further, button 91 adopts non-soldering tin point mounting means, can carry out quickly and easily keeping in repair and changing.
The course of work of reflection type photoelectricity mechanical keyboard switch of the present invention is:
When button 91 is pressed, there is elastic deformation and block axle core 9 in the shell fragment 7 be arranged in base 5, spring 6 is compressed, in slide block 8, reflex block 82 and the distance between LED 1 and photoelectric sensor 2 are also shortened, the light that LED 1 sends is after reflex block 82 reflects, just be radiated on photoelectric sensor 2, reflection type photoelectricity mechanical keyboard switch of the present invention is in closure state.
When button 91 rises, the shell fragment 7 be arranged in base 5 recovers elastic deformation release shaft core 9, spring 6 is in nature elongation state, reflex block 82 and distant between LED 1 and photoelectric sensor 2 in slide block 8, the light that LED 1 sends is after reflex block 82 reflects, can not be radiated on photoelectric sensor 2, reflection type photoelectricity mechanical keyboard switch of the present invention is in off-state.
Due to the elastic deformation of shell fragment 7, button 91 is pressed Shi Douhui at every turn and is sent mechanical impact sound, and the sense of touch of chattering type switch.
The present invention is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present invention; no matter but any change is done in its shape or structure; every have identical with the application or akin technical scheme, all drops within protection scope of the present invention.
Claims (5)
1. a reflection type photoelectricity mechanical keyboard switch, is characterized in that: it comprises LED, photoelectric sensor, PCB, fixing iron plate, base, spring, shell fragment, slide block, axle core and upper cover;
A circular hole is offered at the positive middle part of described PCB, and described circular offers first hole and second hole; Third hole is offered in the middle part of described fixing iron plate; The middle part of described base arranges an annular projection, offers LED installing hole, photoelectric sensor installing hole and shell fragment and install hole slot around described annular projection; The first centre bore is offered at the middle part of described slide block, and the side of described slide block arranges a reflex block; Described axle core comprises the button be positioned on same axis, square plate and columnar projections, and described button is fixedly installed on the end face of described side's plate, and described columnar projections is fixedly installed on the bottom surface of described side's plate; The second centre bore is offered at the middle part of described upper cover, and described second centre bore mates with button and arranges;
Described PCB and fixing iron plate be arranged in parallel, and described base is fastened in described third hole, and the bottom of described annular projection is screwed in described circular hole; The bottom of described LED is fastened in described first hole, and its top is fastened in described LED installing hole; The bottom of described photoelectric sensor is fastened in described second hole, and its top is fastened in described photoelectric sensor installing hole; Described shell fragment is arranged on described shell fragment and installs in hole slot; Described slide block is fastened on described base, and vertically with described base 5, relative motion can occur; The top of described annular projection through described first centre bore, and is connected with one end of described spring; Described side's plate covers at described slide block end face, and the bottom of described columnar projections is connected with the other end of described spring; Described button is through described second centre bore, and described upper cover is fastened on described base.
2. a kind of reflection type photoelectricity mechanical keyboard switch as claimed in claim 1, it is characterized in that: be provided with elasticity footing bottom described upper cover, described chassis outer side is provided with button pin, and by described elasticity footing and button pin, described upper cover is fixedly connected with base.
3. a kind of reflection type photoelectricity mechanical keyboard switch as claimed in claim 1, is characterized in that: described LED adopts paster LED.
4. a kind of reflection type photoelectricity mechanical keyboard switch as described in claim 1 or 2 or 3, is characterized in that: described button adopts cross section to be in-line, cross or leg-of-mutton column structure.
5. a kind of reflection type photoelectricity mechanical keyboard switch as described in claim 1 or 2 or 3, is characterized in that: described button adopts non-soldering tin point mounting means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510828894.8A CN105375913A (en) | 2015-11-24 | 2015-11-24 | Reflection-type opto-mechanical keyboard switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510828894.8A CN105375913A (en) | 2015-11-24 | 2015-11-24 | Reflection-type opto-mechanical keyboard switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105375913A true CN105375913A (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510828894.8A Pending CN105375913A (en) | 2015-11-24 | 2015-11-24 | Reflection-type opto-mechanical keyboard switch |
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| CN (1) | CN105375913A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204011192U (en) * | 2014-06-11 | 2014-12-10 | 东莞市凯华电子有限公司 | The SMD center of LED illuminated keyboard switch |
| CN204130394U (en) * | 2014-09-26 | 2015-01-28 | 东莞市凯华电子有限公司 | A kind of keyboard switch |
| CN204375615U (en) * | 2015-02-06 | 2015-06-03 | 郝小妮 | Based on the dynamo-electric separating type mechanical keyboard of Hall switch |
| CN204539108U (en) * | 2015-02-27 | 2015-08-05 | 东莞市长资实业有限公司 | A kind of photoelectric integral type mechanical axis keyboard switch module |
| CN104966636A (en) * | 2015-06-16 | 2015-10-07 | 郝小妮 | Split-type light-guide key switch and mechanical keyboard |
| CN105006396A (en) * | 2015-07-13 | 2015-10-28 | 东莞市美光达光学科技有限公司 | Switch module of ultrathin reflective computer input equipment |
| CN105023790A (en) * | 2015-07-24 | 2015-11-04 | 东莞市高特电子有限公司 | Mechanical switch light guide and mechanical switch added with light guide |
| CN105070560A (en) * | 2015-08-18 | 2015-11-18 | 深圳市鼎隆盛塑胶模具有限公司 | Light-sensing mechanical keyboard |
| CN205092842U (en) * | 2015-11-24 | 2016-03-16 | 东莞市高特电子有限公司 | Reflective photoelectricity mechanical keyboard switch |
-
2015
- 2015-11-24 CN CN201510828894.8A patent/CN105375913A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204011192U (en) * | 2014-06-11 | 2014-12-10 | 东莞市凯华电子有限公司 | The SMD center of LED illuminated keyboard switch |
| CN204130394U (en) * | 2014-09-26 | 2015-01-28 | 东莞市凯华电子有限公司 | A kind of keyboard switch |
| CN204375615U (en) * | 2015-02-06 | 2015-06-03 | 郝小妮 | Based on the dynamo-electric separating type mechanical keyboard of Hall switch |
| CN204539108U (en) * | 2015-02-27 | 2015-08-05 | 东莞市长资实业有限公司 | A kind of photoelectric integral type mechanical axis keyboard switch module |
| CN104966636A (en) * | 2015-06-16 | 2015-10-07 | 郝小妮 | Split-type light-guide key switch and mechanical keyboard |
| CN105006396A (en) * | 2015-07-13 | 2015-10-28 | 东莞市美光达光学科技有限公司 | Switch module of ultrathin reflective computer input equipment |
| CN105023790A (en) * | 2015-07-24 | 2015-11-04 | 东莞市高特电子有限公司 | Mechanical switch light guide and mechanical switch added with light guide |
| CN105070560A (en) * | 2015-08-18 | 2015-11-18 | 深圳市鼎隆盛塑胶模具有限公司 | Light-sensing mechanical keyboard |
| CN205092842U (en) * | 2015-11-24 | 2016-03-16 | 东莞市高特电子有限公司 | Reflective photoelectricity mechanical keyboard switch |
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Application publication date: 20160302 |
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| RJ01 | Rejection of invention patent application after publication |