CN205945688U - Dustproof and waterproof photoelectric type keyboard switch - Google Patents
Dustproof and waterproof photoelectric type keyboard switch Download PDFInfo
- Publication number
- CN205945688U CN205945688U CN201620827537.XU CN201620827537U CN205945688U CN 205945688 U CN205945688 U CN 205945688U CN 201620827537 U CN201620827537 U CN 201620827537U CN 205945688 U CN205945688 U CN 205945688U
- Authority
- CN
- China
- Prior art keywords
- core
- dustproof
- pedestal
- axle
- key board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Push-Button Switches (AREA)
- Input From Keyboards Or The Like (AREA)
Abstract
The utility model discloses a dustproof and waterproof photoelectric type keyboard switch, including the base, set up lid on the base, the opto -coupler subassembly in inserting the leading the core and insert the base of lid and base in proper order from top to bottom, wherein, lead the core lower extreme and have the axle of inserting, be provided with the support column in the base, seted up first through -hole on the support column central axis direction, insert the axle and insert in the first through -hole to insert the axle with the support column overcoat establish the spring, lead a core side and have the core of leading activity piece, and lead the fixed anti -dazzling screen that is equipped with on the core activity piece, the opto -coupler subassembly includes a radiated element and light receiving element to just be located on the opto -coupler subassembly and seted up the jack between light emitting element and the light receiving element, lead core activity piece and insert in the jack together with the anti -dazzling screen. The utility model discloses not only having improved photoelectric coupling efficiency, having eliminated the influence of external light source to the opto -coupler subassembly, no dust deposit on the opto -coupler subassembly has obviously improved the sensitivity of opto -coupler subassembly in addition, realizes the dustproof and waterproof function.
Description
Technical field
This utility model is related to photoelectric key board switch, more particularly, to a kind of dustproof and waterproof photoelectric key board switch.
Background technology
Photoswitch is the abbreviation of photoelectric proximity switch, and it is using object blocking or reflect to light beam, changes photoelectricity
Sensor by light state, thus being switched on or switched off the device of circuit.The photoswitch initial stage be mainly used in object detection, counting,
The field such as intensity of illumination sensing and colour recognition.Development with photoelectron technology and the reduction of related device cost, light is established by cable
Close and also instead of common contact formula switch in certain fields, such as instead of contact keyboard switch with photo-electric keyboard switch.
With respect to common contact formula keyboard switch, PKB photoelectric keyboard switch has the advantages that fast response time, long service life,
But existing PKB photoelectric keyboard switch there is also some problem following：1）During life-time service, optocoupler assembly surface easy dust stratification dirt,
The sensitivity of optocoupler assembly declines；2）Operationally it is vulnerable to external light source impact, cause disabler；3）Transmitting terminal and reception
End does not have light path alignment, causes radiated element and receiving element photoelectric coupling efficiency low；4）During life-time service, easily intake
Lead to switch actual effect.
Utility model content
For above-mentioned deficiency, the purpose of this utility model is to provide a kind of dustproof and waterproof photoelectric key board switch, passes through
Optocoupler assembly and the matching structure design of brake sack, realize the open and close of keyboard switch, not only in photocell and light
Define light path alignment between receiving element, improve photoelectric coupling efficiency, eliminate the impact to optocoupler assembly for the external light source, and
And in optocoupler assembly, free from dust deposits hence it is evident that improve optocoupler assembly sensitivity, realizes dustproof and waterproof function.
This utility model be employed technical scheme comprise that by reaching above-mentioned purpose：
A kind of dustproof and waterproof photoelectric key board switch, the lid including a pedestal, being arranged on pedestal and from top to bottom
Be sequentially inserted into lid and pedestal leads core, and this is led core upper end and is located at top of closure, and lower end is located at lid and base interior, its feature
It is, also includes inserting the optocoupler assembly in pedestal, wherein, described core lower end of leading has a slotting axle, setting in described pedestal
There is a support column, this support column central axis direction offers a first through hole, in this slotting axle insertion first through hole, and insert at this
Axle outer sheathed spring with support column；Described lead core one side and have lead core activity template, and this is led fixation on core activity template and sets
It is equipped with a brake sack；Described optocoupler assembly includes a photocell and a light receiving element, and in this optocoupler assembly and position
Offer a jack between photocell and light receiving element, described core activity template of leading inserts jack together with brake sack
In.
As further improvement of the utility model, described brake sack includes interconnective shading axle and card, and should
Form a holding section between shading axle and card, this is led core activity template end and is arranged in holding section, and this card is located at leading
Inside core activity template, this shading axle position is in leading outside core activity template.
As further improvement of the utility model, described optocoupler assembly lower end is provided with some pins, sets in described pedestal
It is equipped with the second through hole matching with pin, this some pin inserts in corresponding second through holes, and in base bottom by pin
Sealing is fixed and the second through hole between.
As further improvement of the utility model, the quantity of described pin and the second through hole is four.
As further improvement of the utility model, described pedestal inner bottom part offers some apopores.
As further improvement of the utility model, in described pedestal and positioned at leading core side, it is provided with a torsion spring, should
Torsion spring has a torsion spring locating rod, and this torsion spring positioning boom end is connected to leads on core side.
As further improvement of the utility model, described optocoupler assembly and brake sack are in black.
As further improvement of the utility model, described pedestal, lid distinguish transparent shape or opaque with leading core
Shape.
The beneficial effects of the utility model are：By the matching structure design of optocoupler assembly and brake sack, unit is launched to light
Passage of light between part and light receiving element is turned on and is ended, and realizes the open and close of keyboard switch, not only in light
Define light path alignment between radiated element and light receiving element, improve photoelectric coupling efficiency, eliminate external light source to optocoupler
The impact of assembly, and optocoupler assembly is arranged at lid and base interior, free from dust deposition is hence it is evident that raising optocoupler assembly is sensitive
Degree, realizes dust reduction capability；Meanwhile, fix carrying out sealing between the pin of optocoupler assembly and pedestal, and keyboard switch will be entered
Interior water is discharged from apopore, prevents the impact to optocoupler assembly performance into water, realizes water-proof function.
Above-mentioned be utility model technical scheme general introduction, below in conjunction with accompanying drawing and specific embodiment, to this utility model
It is described further.
Brief description
Fig. 1 is assembling schematic diagram of the present utility model；
Fig. 2 is overall structure diagram of the present utility model；
Fig. 3 is part-structure schematic diagram of the present utility model；
Fig. 4 is sectional view of the present utility model；
Fig. 5 leads the structural representation of core for this utility model；
Fig. 6 is the structural representation of this utility model optocoupler assembly；
Fig. 7 is the structural representation of this utility model brake sack；
Fig. 8 is another part-structure schematic diagram of the present utility model；
Fig. 9 is the polycrystalline substance schematic diagram of this utility model pedestal.
Specific embodiment
For further illustrating that this utility model is to reach technological means and effect that predetermined purpose is taken, below in conjunction with
Accompanying drawing and preferred embodiment, describe in detail to specific embodiment of the present utility model.
Refer to Fig. 1 to Fig. 9, this utility model embodiment provides a kind of dustproof and waterproof photoelectric key board switch, including one
Pedestal 1, the lid 2 being arranged on pedestal 1 and be from top to bottom sequentially inserted into lid 2 and pedestal 1 lead core 3, this is led on core 3
End is located at lid 2 top, and lower end is located inside lid 2 and pedestal 1.The present embodiment dustproof and waterproof photoelectric key board switchs, and also wraps
Include the optocoupler assembly 4 in insertion pedestal 1, wherein, described core 3 lower end of leading has a slotting axle 31, is provided with one in described pedestal 1
Support column 11, this support column 11 central axis direction offers a first through hole 12, in this slotting axle 31 insertion first through hole 12, and
In this slotting axle 31 and a sheathed spring 5 outside support column 11；Described lead core 3 one side and have lead core activity template 32, and this leads core
One brake sack 6 is fixedly installed on activity template 32 it is ensured that brake sack 6 moves up and down together with leading core 3；Described optocoupler assembly 4 is wrapped
Include a photocell 41 and a light receiving element 42, and and be located at photocell 41 and light-receiving in this optocoupler assembly 4
A jack 43 is offered, described core activity template 32 of leading is inserted in jack 43 together with brake sack 6 between element 42.
In the present embodiment, as shown in fig. 7, specifically, described brake sack 6 includes interconnective shading axle 61 and card
Form a holding section 63, this is led core activity template 32 end and is arranged in holding section 63 between 62, and this shading axle 61 and card 62,
And this card 62 is arranged in and leads inside core activity template 32, this shading axle 61 is located at and leads outside core activity template 32.
Meanwhile, it is provided with a torsion spring 7 in described pedestal 1 and positioned at leading core 3 side, this torsion spring 7 has a torsion spring positioning
Bar 71, this torsion spring locating rod 71 end is connected to leads on core 3 side.
As further improvement of this embodiment, as shown in Fig. 8 and Fig. 9, described optocoupler assembly 4 lower end is provided with some pins
44, it is provided with the second through hole 13 matching with pin 44 in described pedestal 1, this some pin 44 inserts corresponding second through hole
In 13, and in pedestal 1 bottom, sealing between pin 44 and the second through hole 13 is fixed.In the present embodiment it is preferred that described insert
The quantity of foot 44 and the second through hole 13 is four.Described pedestal 1 inner bottom part offers some apopores 14.
As shown in figure 9, by modes such as gluing water or injections, in pedestal 1 bottom by between pin 44 and the second through hole 13
Sealing is fixed, and lid transparent insulation material is carried out on surface, and when keyboard switch is when leading the water inlet of core 3 surrounding, water flows out from apopore 14,
Optocoupler assembly 4 is no affected, thus realizing water-proof function.
In the present embodiment, described optocoupler assembly 4 is made using encapsulated, injection or assembling process, and its material is opaque
Material, makes optocoupler assembly 4 be internally formed the dark cavity of a closing.
Meanwhile, described optocoupler assembly 4 and brake sack 6 are in black.Described pedestal 1, lid 2 distinguish transparent shape with leading core 3
Or opaque shape.In the present embodiment, as long as black made by optocoupler assembly 4 and brake sack 6, all can reach of the present utility model
Purpose.Meanwhile, when described pedestal 1, lid 2 are with leading at least one transparent shape in core 3, keyboard switch internal light can be from
Transparence structure is dissipated into outside, forms glare, increases the colorful effect of keyboard switch, improves the experience effect of user.
The present embodiment dustproof and waterproof photoelectric key board switch can be fabricated to sound or noiseless keyboard switch, when need make
When becoming sound keyboard switch, increase by a sound-producing device in keyboard switch, to strengthen the feel of switch motion.
Operation principle of the present utility model is：When do not press lead core 3 when, lead core 3 bullet under the elastic force active force of spring 5
Rise, be fixed on the brake sack 6 leading on core activity template 32 and upspring together in company with leading core 3, then the light quilt that photocell 41 sends
Brake sack 6 blocks, and light cannot be irradiated on light receiving element 42, then no turn on the signal of telecommunication；Lead when pressing under external force
During core 3, the shading axle 61 on brake sack 6 moves down in company with leading core 3, after having crossed optocoupler assembly A point, as shown in figure 4, light shines
It is mapped on light receiving element 42 it is achieved that the ON operation of switch, leads core 3 when in no external force and reset, now no Continuity signal,
Define a break-make circulation of switch.
Emphasis of the present utility model essentially consists in, and by the matching structure design of optocoupler assembly and brake sack, light is launched
Passage of light between element and light receiving element is turned on and is ended, and realizes the open and close of keyboard switch, not only exists
Define light path alignment between photocell and light receiving element, improve photoelectric coupling efficiency, eliminate external light source to light
The impact of coupling assembly, and optocoupler assembly is arranged at lid and base interior, free from dust deposition is hence it is evident that improve optocoupler assembly spirit
Sensitivity, realizes dust reduction capability；Meanwhile, fix carrying out sealing between the pin of optocoupler assembly and pedestal, and open entering keyboard
Water inside the Pass is discharged from apopore, prevents the impact to optocoupler assembly performance into water, realizes water-proof function.
The above, be only preferred embodiment of the present utility model, not technical scope of the present utility model is made
Any restriction, therefore using the technical characteristic identical or approximate with this utility model above-described embodiment, obtained from other structures, all
Within protection domain of the present utility model.
Claims (8)
1. a kind of dustproof and waterproof photoelectric key board switch, the lid including a pedestal, being arranged on pedestal and from top to bottom according to
Secondary insertion lid leads core with pedestal, and this is led core upper end and is located at top of closure, and lower end is located at lid and base interior, and its feature exists
In, also include insert pedestal in an optocoupler assembly, wherein, described lead core lower end have one insert axle, be provided with described pedestal
One support column, this support column central axis direction offers a first through hole, in this slotting axle insertion first through hole, and in this slotting axle
An outer sheathed spring with support column；Described lead core one side and have lead core activity template, and this is led and is fixedly installed on core activity template
There is a brake sack；Described optocoupler assembly includes a photocell and a light receiving element, and and is located in this optocoupler assembly
A jack is offered, described core activity template of leading is inserted in jack together with brake sack between photocell and light receiving element.
2. dustproof and waterproof photoelectric key board according to claim 1 switchs it is characterised in that described brake sack includes mutually
Form a holding section, this is led core activity template end and is arranged in card between the shading axle connecting and card, and this shading axle and card
In conjunction portion, and this card is located at leading inside core activity template, and this shading axle position is in leading outside core activity template.
3. dustproof and waterproof photoelectric key board according to claim 1 switchs it is characterised in that described optocoupler assembly lower end sets
There are some pins, in described pedestal, be provided with the second through hole matching with pin, this some pin insertion corresponding second is led to
Kong Zhong, and in base bottom, sealing between pin and the second through hole is fixed.
4. dustproof and waterproof photoelectric key board according to claim 3 switch is it is characterised in that described pin and the second through hole
Quantity be four.
5. dustproof and waterproof photoelectric key board according to claim 3 switchs it is characterised in that described pedestal inner bottom part opens up
There are some apopores.
6. dustproof and waterproof photoelectric key board according to claim 1 switchs it is characterised in that and being located in described pedestal
Lead core side and be provided with a torsion spring, this torsion spring has a torsion spring locating rod, this torsion spring positioning boom end is connected to leads on core side.
7. dustproof and waterproof photoelectric key board according to claim 1 switch is it is characterised in that described optocoupler assembly and shading
Piece is in black.
8. dustproof and waterproof photoelectric key board according to claim 7 switch it is characterised in that described pedestal, lid with lead
Core transparent shape or opaque shape respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620827537.XU CN205945688U (en) | 2016-07-29 | 2016-07-29 | Dustproof and waterproof photoelectric type keyboard switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620827537.XU CN205945688U (en) | 2016-07-29 | 2016-07-29 | Dustproof and waterproof photoelectric type keyboard switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205945688U true CN205945688U (en) | 2017-02-08 |
Family
ID=57925210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620827537.XU Expired - Fee Related CN205945688U (en) | 2016-07-29 | 2016-07-29 | Dustproof and waterproof photoelectric type keyboard switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205945688U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022166789A1 (en) * | 2021-02-05 | 2022-08-11 | 东莞市凯华电子有限公司 | Waterproof balance shaft for keyboard |
-
2016
- 2016-07-29 CN CN201620827537.XU patent/CN205945688U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022166789A1 (en) * | 2021-02-05 | 2022-08-11 | 东莞市凯华电子有限公司 | Waterproof balance shaft for keyboard |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104853014B (en) | Resilient sleeve and mobile terminal | |
| CN208079318U (en) | Mobile device and its microphone apparatus | |
| CN205945688U (en) | Dustproof and waterproof photoelectric type keyboard switch | |
| CN202140838U (en) | LED lamp bulb with light shading structure | |
| CN111463053A (en) | Photoelectric switch key and keyboard | |
| CN205900404U (en) | Photoelectric type keyboard switch | |
| CN205565178U (en) | Type -C prevents EMI plug connector | |
| CN201311641Y (en) | Minimized CCD bar code scanner | |
| CN201018466Y (en) | Photoelectric sensor | |
| CN208125278U (en) | A kind of pyroelectric infrared sensor | |
| CN212365808U (en) | Photoelectric induction type key switch and keyboard | |
| CN204616229U (en) | Electronic installation | |
| CN213521835U (en) | Human body induction device of household appliance and household appliance | |
| CN204616230U (en) | For housing and the electronic installation of electronic installation | |
| CN213462217U (en) | Neck hanging type Bluetooth earphone | |
| CN2300113Y (en) | Light guide column for raising remote-control sensitivity and increasing remote-control range | |
| CN217789838U (en) | Sound box | |
| CN212162248U (en) | Luminous USB connector | |
| CN215680478U (en) | Touch key assembly and electric appliance | |
| CN211236650U (en) | Non-contact control panel | |
| CN219416440U (en) | Light sensor structure and air conditioner | |
| CN213576994U (en) | Indicator lamp structure of electronic product | |
| CN212931654U (en) | Farmland illumination sensor | |
| CN210668882U (en) | Power socket for dim environment | |
| CN217884125U (en) | Terminal equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 523000 1A, Lin Dong two road, Lin Cun, Tangxia Town, Dongguan, Guangdong Patentee after: Dongguan Kaihua Electronics Co., Ltd. Address before: 523000 Lin Cun industrial center, Tangxia Town, Dongguan, Guangdong Patentee before: Dongguan Kaihua Electronics Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170208 Termination date: 20190729 |