CN206594636U - A kind of input equipment with automatic heating device, anti-freeze - Google Patents
A kind of input equipment with automatic heating device, anti-freeze Download PDFInfo
- Publication number
- CN206594636U CN206594636U CN201720328933.2U CN201720328933U CN206594636U CN 206594636 U CN206594636 U CN 206594636U CN 201720328933 U CN201720328933 U CN 201720328933U CN 206594636 U CN206594636 U CN 206594636U
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- China
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- pcb board
- input equipment
- waterproof layer
- lower floor
- key switch
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Abstract
The utility model discloses a kind of band automatic heating device, the input equipment of anti-freeze, the input equipment includes keyboard components, heating component, the heating component is installed in keyboard components, the keyboard components include button, panel, support, waterproof layer, key switch, the button is placed in faceplate through holes, panel is arranged at the upper strata of support, the support lower floor is waterproof layer, the waterproof layer is flexible glue waterproof layer, the lower floor of the waterproof layer is pcb board, the pcb board surface is laid with key switch, the key switch is placed in the underface of button, the outside of the pcb board is coated with one layer of heat conducting film, the heat conducting film wraps up key switch and pcb board entirely；The pcb board lower floor for being enclosed with heat conducting film is provided with metal base plate, and the metal base plate lower floor is provided with the PTC-ceramic heating module being electrically connected with pcb board.The utility model input equipment can be very good by keyboard temperature control within 55 DEG C, and not influenceed by external temperature height change, more safe and reliable.
Description
Technical field
The utility model is related to human-computer interaction device, particularly relates to a kind of with automatic heating device, anti-freeze
Input equipment.
Background technology
If keyboard type product is without automatic heating device, when external environment condition the occurrence of wetness and temperature less than less than 0 DEG C
When, the phenomenon freezed can occur because of icing in the free gap of keyboard, cause keyboard not use normally.
The achievable keyboard heated automatically being currently known, its heater is electric heating film.Film is arranged on keyboard
Panel and circuit board between, powered by circuit board.There is temperature sensor on circuit board, electricity is controlled by sense ambient temperature
The switch of hotting mask, so as to reach anti-freeze purpose.
This scheme is disadvantageous in that：
1. Electric radiant Heating Film has dry combustion method hidden danger, heating film must control it to heat by temperature sensor and linked switch circuit
The break-make of power supply, once temperature switch circuit breaks down, then what heating film can be random is in what is be powered or power off always always
State.And the heating film of electrified regulation is danger close always, with the accumulation of heat, temperature quickly can be more than 70 DEG C even more
Height, this temperature can allow keyboard user can not touch or even scald, while can also trigger the safety problem of surrounding devices.
Using the keyboard of traditional heated by electrothermal film, its temperature control system once failing, it is possible to the potential safety hazard of outlet " dry combustion method ", with
The accumulation of heat, keyboard temperature quickly can more than 70 DEG C even more highs, this temperature can allow keyboard user can not touch even
Scald, while can also trigger the safety problem of surrounding devices.
2. Electric radiant Heating Film is located between the panel of keyboard and circuit board, maintenance replacing needs to dismantle whole keyboard, cumbersome,
Maintenance difficulties are big.
Utility model content
For deficiency of the prior art, the technical problems to be solved in the utility model is the provision of a kind of band and added automatically
The input equipment of thermal, anti-freeze.
In order to solve the above technical problems, the utility model is realized by following scheme：It is a kind of band automatic heating device, anti-
The input equipment freezed, the input equipment includes keyboard components, heating component, and the heating component is installed in keyboard components,
The keyboard components include button, panel, support, waterproof layer, key switch, and the button is placed in faceplate through holes, and panel is set
The upper strata of support is placed in, the support lower floor is waterproof layer, and the waterproof layer is flexible glue waterproof layer, and the lower floor of the waterproof layer is
Pcb board, the pcb board surface is laid with key switch, and the key switch is placed in the underface of button, the outside bag of the pcb board
One layer of heat conducting film is covered with, the heat conducting film wraps up key switch and pcb board entirely；
The pcb board lower floor for being enclosed with heat conducting film is provided with metal base plate, and the metal base plate lower floor is provided with electrically to be connected with pcb board
The PTC-ceramic heating module connect.
Further, the metal base plate is aluminium heat-conducting plate.
Further, it is provided with temperature controller on the pcb board.
Further, the PTC-ceramic heating module is provided with semiconductor PTC-ceramic heating plate.
Further, the semiconductor PTC-ceramic heating plate is low-temp low-pressure semiconductive ceramic heating plate.
Further, the heat conducting film is graphene heat conducting film.
Relative to prior art, the beneficial effects of the utility model are：
1. the utility model input equipment effectively solves traditional hot problem.PTC-ceramic heating plate is distinctive certainly
Temperature-limiting character, can be very good by keyboard temperature control within 55 DEG C, and not influenceed by external temperature height change, more
It is safe and reliable.
2. compared with the Electric radiant Heating Film between panel and pcb board interlayer, the heater on bottom plate is more prone to
Install and safeguard, and keyboard structure is without changing, it is easy to upgrade and promote.
Brief description of the drawings
Fig. 1 is the utility model input equipment explosive view；
Fig. 2 is Fig. 1 assembling figure.
Embodiment
Preferred embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings, so that advantage of the present utility model
It can be easier to be readily appreciated by one skilled in the art with feature, so as to make protection domain of the present utility model apparent clear and definite
Define.
Accompanying drawing 1-2 is refer to, should the utility model discloses a kind of input equipment with automatic heating device, anti-freeze
Input equipment includes keyboard components, heating component, and the heating component is installed in keyboard components, and the keyboard components include pressing
Key 1, panel 2, support 3, waterproof layer 4, key switch 5, the button 1 are placed in the through hole of panel 2, and panel 2 is arranged at support
Upper strata, the lower floor of support 3 is waterproof layer 4, and the waterproof layer 4 is flexible glue waterproof layer, and the lower floor of the waterproof layer 4 is pcb board
7, the surface of pcb board 7 is laid with key switch 5, and the key switch 5 is placed in the underface of button 1, the outside bag of the pcb board 7
One layer of heat conducting film 6 is covered with, the heat conducting film 6 wraps up key switch 5 and pcb board 7 entirely；
The lower floor of pcb board 7 for being enclosed with heat conducting film 6 is provided with metal base plate 8, and the lower floor of metal base plate 8 is provided with and pcb board 7
The PTC-ceramic heating module 9 of electric connection.
The metal base plate is aluminium heat-conducting plate.
Temperature controller is provided with the pcb board 7.
The PTC-ceramic heating module 9 is provided with semiconductor PTC-ceramic heating plate.
The semiconductor PTC-ceramic heating plate is low-temp low-pressure semiconductive ceramic heating plate.
The heat conducting film 6 is graphene heat conducting film.
The utility model uses different principle of heating：Heated using semiconductor PTC-ceramic heating plate.
Contrasted with Electric radiant Heating Film, semiconductor PTC-ceramic heating plate is more safe and reliable, at the two ends of semiconductive ceramic plus electricity
After pressure, semiconductor PTC-ceramic heating plate will generate heat.But the resistance characteristic of semiconductor PTC-ceramic heating plate and general Electric radiant Heating Film
Difference, its resistance variation with temperature can produce a flex point, i.e., when the temperature of semiconductor PTC-ceramic heating plate reach it is a certain
Particular value, when temperature rises a small value again, the resistance of semiconductor PTC-ceramic heating plate will be ramped.And herein it
Before, the resistance of semiconductor PTC-ceramic heating plate is then basically unchanged.
This inflection temperature is exactly our described Curie temperature usually, with reference to the relation formula between power and resistance：N=
U2/R, it can be appreciated that after the temperature of semiconductor PTC-ceramic heating plate reaches flex point, temperature often rises a small value again,
The resistance of semiconductor PTC-ceramic heating plate will be increased drastically, and heating power can then be strongly reduced until leveling off to zero, and this makes
The temperature of semiconductor PTC-ceramic heating plate can to substantially remain in knee value constant.Therefore semiconductor PTC-ceramic heating plate adds
After thermal element is powered, no matter how external condition changes, and it is constant that its temperature is held at its Curie temperature.
The utility model uses the low-temp low-pressure semiconductive ceramic heating plate that Curie temperature is 55 degrees Celsius, in temperature
Under the monitoring of control chip, the current lead-through when environment temperature is less than 5 DEG C is begun to warm up, then calandria can be always held at
55 DEG C or so of temperature, until keyboard bulk temperature is increased to more than 15 DEG C, Temperature Controlling Chip power-off.
Assuming that temperature control system breaks down, make semiconductor PTC-ceramic heating plate electrified regulation always, keyboard bulk temperature
It is very safe not over 55 DEG C.
Semiconductor PTC-ceramic heating plate, is integrally fixed on the metal base plate of keyboard used in the utility model, and it is produced
Raw heat, metal base plate is conducted to pcb board, support and panel, and can be by installing heat conduction film layer additional so that keyboard is integrally uniform
Heating.Compared with the Electric radiant Heating Film between panel and pcb board interlayer, the heater on bottom plate be more prone to install and
Safeguard, and keyboard structure is without changing, it is easy to upgrading and popularization.
Operation principle of the utility model with automatic heating device, the input equipment of anti-freeze is as follows：
1. semiconductor PTC-ceramic heating plate is directly anchored into metal base plate lower surface, the temperature control circuit on pcb board is born
Duty power supply；
Temperature control circuit on 2.PCB plates starts to heat to semiconductor PTC-ceramic when perceiving keyboard temperature less than 5 DEG C
Piece electrified regulation；
3. the temperature of semiconductor PTC-ceramic heating plate rises rapidly and stably at 55 DEG C or so, its heat passes through metal bottom
Plate is conducted to pcb board；
The position of the conduction of even heat to each button connects key activities by the heat conducting film of cladding outside 4.PCB plates
Liquid at seam remains that liquid does not freeze；
5. keyboard bulk temperature rises to 15 DEG C, temperature control circuit control semiconductor PTC-ceramic heating plate disconnects, and heating stops
Only.
Preferred embodiment of the present utility model is the foregoing is only, patent model of the present utility model is not thereby limited
Enclose, equivalent structure or equivalent flow conversion that every utilization the utility model specification and accompanying drawing content are made, or directly or
Connect and be used in other related technical fields, be similarly included in scope of patent protection of the present utility model.
Claims (6)
1. a kind of input equipment with automatic heating device, anti-freeze, the input equipment includes keyboard components, heating component, institute
State heating component to be installed in keyboard components, the keyboard components include button（1）, panel（2）, support（3）, waterproof layer（4）、
Key switch（5）, the button（1）It is placed in panel（2）In through hole, panel（2）It is arranged at the upper strata of support, the support（3）
Lower floor is waterproof layer（4）, the waterproof layer（4）For flexible glue waterproof layer, the waterproof layer（4）Lower floor be pcb board（7）, the PCB
Plate（7）Surface is laid with key switch（5）, the key switch（5）It is placed in button（1）Underface, it is characterised in that：It is described
Pcb board（7）Outside be coated with one layer of heat conducting film（6）, the heat conducting film（6）By key switch（5）And pcb board（7）Full parcel；
It is enclosed with heat conducting film（6）Pcb board（7）Lower floor is provided with metal base plate（8）, the metal base plate（8）Lower floor is provided with and PCB
Plate（7）The PTC-ceramic heating module of electric connection（9）.
2. a kind of input equipment with automatic heating device, anti-freeze according to claim 1, it is characterised in that：It is described
Metal base plate is aluminium heat-conducting plate.
3. a kind of input equipment with automatic heating device, anti-freeze according to claim 1, it is characterised in that：It is described
Pcb board（7）On be provided with temperature controller.
4. a kind of input equipment with automatic heating device, anti-freeze according to claim 1, it is characterised in that：It is described
PTC-ceramic heating module（9）Provided with semiconductor PTC-ceramic heating plate.
5. a kind of input equipment with automatic heating device, anti-freeze according to claim 4, it is characterised in that：It is described
Semiconductor PTC-ceramic heating plate is low-temp low-pressure semiconductive ceramic heating plate.
6. a kind of input equipment with automatic heating device, anti-freeze according to claim 1, it is characterised in that：It is described
Heat conducting film（6）For graphene heat conducting film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720328933.2U CN206594636U (en) | 2017-03-31 | 2017-03-31 | A kind of input equipment with automatic heating device, anti-freeze |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720328933.2U CN206594636U (en) | 2017-03-31 | 2017-03-31 | A kind of input equipment with automatic heating device, anti-freeze |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206594636U true CN206594636U (en) | 2017-10-27 |
Family
ID=60122874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720328933.2U Active CN206594636U (en) | 2017-03-31 | 2017-03-31 | A kind of input equipment with automatic heating device, anti-freeze |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206594636U (en) |
-
2017
- 2017-03-31 CN CN201720328933.2U patent/CN206594636U/en active Active
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