CN207301555U - A kind of automatic heating module of liquid crystal display - Google Patents
A kind of automatic heating module of liquid crystal display Download PDFInfo
- Publication number
- CN207301555U CN207301555U CN201721428649.9U CN201721428649U CN207301555U CN 207301555 U CN207301555 U CN 207301555U CN 201721428649 U CN201721428649 U CN 201721428649U CN 207301555 U CN207301555 U CN 207301555U
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- crystal display
- heating
- heating module
- temperature
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of automatic heating module of liquid crystal display, including heating film and temperature detecting and heating module, the upper end of heating film is provided with liquid crystal display, the side of temperature detecting and heating module is provided with temperature sensor, and power circuit and temperature control circuit are internally provided with the outside of temperature detecting and heating module.The automatic heating module of this liquid crystal display is after the temperature that temperature sensor detects is less than design temperature, transistor V and contactor KM, which is attracted, to be turned on, relay K is connected and heating film is heated, when temperature is higher than design temperature, transistor V ends, relay K and contactor KM is disconnected, and heating resistor R4 power-off stops heating cooling so that heating film is maintained in stable scope；Entirety can reach liquid crystal display and be adapted to stable working environment.
Description
Technical field
Liquid crystal display technical field is the utility model is related to, is specially a kind of automatic heating module of liquid crystal display.
Background technology
When liquid crystal display is working in the environment of less than its operating temperature, it may appear that become since liquid crystal molecule rotates
Slowly, cause liquid crystal display to show and motion blur phenomenon occur, client's use is influenced, at present for liquid crystal display warming module generally with heating film
Glass attachment is either heated to carry out in liquid crystal screen surfaces or the back side, the heating module being then wired on exterior board
Driving heating, it is complicated, it is inconvenient for use, therefore need a kind of automatic heating module of liquid crystal display.
The content of the invention
The purpose of this utility model is to provide a kind of automatic heating module of liquid crystal display, and having can make liquid crystal display reach suitable
Stable working environment, cost is low, it is easy to use the advantages of, solving can not make liquid crystal display be maintained at stable in the prior art
In environment, traditional heating unit is complicated, takes bulky problem.
To achieve the above object, the utility model provides following technical solution：A kind of automatic heating module of liquid crystal display, including
Heating film and temperature detecting and heating module, temperature detecting and the heating module contact are fixedly mounted on the side of heating film；
The upper end of the heating film is provided with liquid crystal display, and upper end and the liquid crystal display of heating film connect；The temperature detecting and heating
The side of module is provided with temperature sensor, and power circuit and temperature control electricity are internally provided with the outside of temperature detecting and heating module
Road；The power circuit includes rectifier bridge stack UR, and 1 serial capacitance C1 of the pin ground connection of rectifier bridge stack UR, rectifier bridge stack UR's draws
2 serial capacitance C2 of foot connects 220V power cathodes, input terminal connection resistance R1 and the capacitance C2 input terminals of the pin 2 of rectifier bridge stack UR
And connect；The pin 3 of the rectifier bridge stack UR is grounded, the output terminal concatenation zener diode D1 and capacitance of rectifier bridge stack UR pins 3
The input terminal of C1 simultaneously connects；The pin 4 of the rectifier bridge stack UR connects 220V positive poles；The output terminal string of the zener diode D1
Connecting resistance R2 and resistance R3 ground connection；The temperature control circuit includes chip U1, heating resistor R4, transistor V, diode VD1, relay
Device K and contactor KM, temperature sensor 4 are electrically connected with chip U1, the pin 3 of chip U1 concatenate heating resistor R4 and transistor
The base stage of V is electrically connected, the emitter ground connection of transistor V, the output of the collector series connection diode VD1 and resistance R2 of transistor V
Hold and connect, the output terminal of the input terminal of diode VD1 connection relay K and resistance R2 simultaneously connects, relay K concatenation contactor KM and
Power cathode connects.
Preferably, the chip U1 selects programmable 89C51 chips.
Preferably, the relay K selects 4089 type 12V DC relays.
Preferably, the contactor KM selects the A.C. contactor that coil voltage is 220V.
Preferably, the heating resistor R4 is uniformly equidistantly coiled in heating film 1.
Compared with prior art, the beneficial effects of the utility model are as follows：
The power circuit of the automatic heating module of this liquid crystal display can provide stable operating current, when relay K is turned on, hair
Thermal resistance R4 obtains electric fever, and heating resistor R4 is uniformly equidistantly coiled in heating film, and uniformly heating film can be heated,
Heating film is connected with liquid crystal display, can uniformly be heated for liquid crystal display, and while heating, temperature sensor can be to heating
The temperature of film is detected in real time, the signal transmission detected is analyzed to chip U1 processing, chip U1 is using programmable
89C51 chips, can set temperature value, after the temperature that temperature sensor detects is less than design temperature, transistor V and contactor
KM is attracted conducting, and relay K is connected and heating film is heated, when temperature is higher than design temperature, transistor V cut-offs, and relay
Device K and contactor KM is disconnected, and heating resistor R4 power-off stops heating cooling so that and heating film is maintained in stable scope, from
And liquid crystal display is maintained within the scope of stable temperature, normal work is kept, by by temperature detecting and heating module 2 and heating
Film 1 is integrated in one, and only need to power and can directly work, and reduces the heating module design on exterior board, reduces and grind
Cost is sent out, it is easy to use；Entirety can reach liquid crystal display and be adapted to stable working environment, and cost is low, easy to use.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the temperature detecting and heated mould circuit diagram of the utility model.
In figure：1 heating film, 2 temperature detectings and heating module, 3 liquid crystal displays, 4 temperature sensors, 5 power circuits, 6 temperature controls
Circuit.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained, shall fall within the protection scope of the present invention.
Please refer to Fig.1-2, a kind of automatic heating module of liquid crystal display, including heating film 1 and temperature detecting and heating module 2,
Temperature detecting and heating module 2 contact the side for being fixedly mounted on heating film 1；The upper end of heating film 1 is provided with liquid crystal display 3, adds
The upper end of hotting mask 1 is connected with liquid crystal display 3；The side of temperature detecting and heating module 2 is provided with temperature sensor 4, temperature
The outside of detecting and heating module 2 is internally provided with power circuit 5 and temperature control circuit 6；Power circuit 5 includes rectifier bridge stack UR,
1 serial capacitance C1 of the pin ground connection of rectifier bridge stack UR, the 2 serial capacitance C2 of pin of rectifier bridge stack UR connects 220V power cathodes, whole
The input terminal connection resistance R1 of the pin 2 of stream bridge heap UR and capacitance C2 input terminals simultaneously connect；The pin 3 of rectifier bridge stack UR is grounded, whole
The input terminal of the output terminal concatenation zener diode D1 and capacitance C1 of stream bridge heap UR pins 3 simultaneously connects；The pin 4 of rectifier bridge stack UR connects
220V positive poles；Output terminal series resistor R2 and resistance the R3 ground connection of zener diode D1；Temperature control circuit 6 include chip U1,
Heating resistor R4, transistor V, diode VD1, relay K and contactor KM, chip U1 select programmable 89C51 chips, temperature
Degree sensor 4 is electrically connected with chip U1, the pin 3 of chip U1 concatenation heating resistor R4 with the base stage of transistor V be electrically connected, hair
Thermal resistance R4 is uniformly equidistantly coiled in heating film 1, the emitter ground connection of transistor V, two pole of collector series connection of transistor V
The output terminal of pipe VD1 and resistance R2 simultaneously connects, and the output terminal of the input terminal connection relay K and resistance R2 of diode VD1 simultaneously connects, after
Electric appliance K selects 4089 type 12V DC relays, and relay K concatenations contactor KM is connected with power cathode, and contactor KM selects line
Enclose the A.C. contactor that voltage is 220V；At work, alternating current 220V voltage is depressured by capacitance C2, rectifier bridge stack UR rectifications,
Zener diode D1 voltage stabilizings, after resistance R2 current limlitings and capacitance C3 filtering, 12V DC electric current is provided for relay K and chip U1,
Heating resistor R4 is serially connected between chip U1 and transistor V at the same time, and when relay K is turned on, heating resistor R4 obtains electric fever, fever
Resistance R4 is uniformly equidistantly coiled in heating film 1, uniformly heating film 1 can be heated, heating film 1 connects with liquid crystal display 3
Connection is touched, can uniformly be heated for liquid crystal display 3, while heating, temperature sensor 4 can carry out the temperature of heating film 1
Detection in real time, the signal transmission detected is analyzed to chip U1 processing, chip U1 uses programmable 89C51 chips, can set
Constant temperature angle value, after the temperature that temperature sensor 4 detects is less than design temperature, transistor V and contactor KM, which is attracted, to be turned on, after
Electric appliance K is connected and heating film 1 is heated, when temperature is higher than design temperature, transistor V cut-offs, and relay K and contactor KM
Disconnect, heating resistor R4 power-off stops heating cooling so that heating film 1 is maintained in stable scope, so that liquid crystal display 3 is protected
Hold within the scope of stable temperature, keep normal work, by the way that temperature detecting and heating module 2 are integrated in one with heating film 1
Body, only need to power and can directly work, and reduce the heating module design on exterior board, reduce R＆D costs, use
It is convenient；Entirety can reach liquid crystal display 3 and be adapted to stable working environment, and cost is low, easy to use.
In summary：The power circuit 5 of the automatic heating module of this liquid crystal display can provide stable operating current, work as relay
When K is turned on, heating resistor R4 obtains electric fever, and heating resistor R4 is uniformly equidistantly coiled in heating film 1, can be uniformly to heating
Film 1 is heated, and heating film 1 is connected with liquid crystal display 3, can uniformly be heated for liquid crystal display 3, while heating, temperature
Degree sensor 4 can detect the temperature of heating film 1 in real time, the signal transmission detected be analyzed to chip U1 processing, core
Piece U1 uses programmable 89C51 chips, can set temperature value, when the temperature that temperature sensor 4 detects is less than design temperature
Afterwards, transistor V and contactor KM, which is attracted, turns on, and relay K is connected and heating film 1 is heated, when temperature is higher than design temperature
When, transistor V cut-offs, relay K and contactor KM is disconnected, and heating resistor R4 power-off stops heating cooling so that heating film 1 is protected
Hold in stable scope, so that liquid crystal display 3 is maintained within the scope of stable temperature, keep normal work, by by temperature
Detecting and heating module 2 are integrated in one with heating film 1, only need to power and can directly work, reduce on exterior board
Heating module designs, and reduces R＆D costs, easy to use；Entirety can reach liquid crystal display 3 and be adapted to stable working environment, into
This is low, easy to use.
While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from the principle of the utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of automatic heating module of liquid crystal display, including heating film（1）With temperature detecting and heating module（2）, it is characterised in that：
The temperature detecting and heating module（2）Contact is fixedly mounted on heating film（1）Side；The heating film（1）Upper end set
It is equipped with liquid crystal display（3）, heating film（1）Upper end and liquid crystal display（3）Connect；The temperature detecting and heating module（2）'s
Side is provided with temperature sensor（4）, temperature detecting and heating module（2）Outside be internally provided with power circuit（5）And temperature
Control circuit（6）；The power circuit（5）Including rectifier bridge stack UR, the 1 serial capacitance C1 of pin of rectifier bridge stack UR is grounded, rectification
The 2 serial capacitance C2 of pin of bridge heap UR connects 220V power cathodes, input terminal connection resistance R1 and the electricity of the pin 2 of rectifier bridge stack UR
Hold C2 input terminals and connect；The pin 3 of the rectifier bridge stack UR is grounded, two pole of output terminal concatenation voltage stabilizing of rectifier bridge stack UR pins 3
The input terminal of pipe D1 and capacitance C1 simultaneously connects；The pin 4 of the rectifier bridge stack UR connects 220V positive poles；The zener diode D1
Output terminal series resistor R2 and resistance R3 ground connection；The temperature control circuit（6）Including chip U1, heating resistor R4, transistor V,
Diode VD1, relay K and contactor KM, temperature sensor（4）It is electrically connected with chip U1, the concatenation fever of pin 3 of chip U1
Resistance R4 with the base stage of transistor V be electrically connected, the emitter ground connection of transistor V, the collector series connection diode of transistor V
The output terminal of VD1 and resistance R2 simultaneously connects, and the output terminal of the input terminal connection relay K and resistance R2 of diode VD1 simultaneously connects, relay
Device K concatenations contactor KM is connected with power cathode.
A kind of 2. automatic heating module of liquid crystal display according to claim 1, it is characterised in that：The chip U1 is selected and can compiled
The 89C51 chips of journey.
A kind of 3. automatic heating module of liquid crystal display according to claim 1, it is characterised in that：The relay K is selected
4089 type 12V DC relays.
A kind of 4. automatic heating module of liquid crystal display according to claim 1, it is characterised in that：The contactor KM selects line
Enclose the A.C. contactor that voltage is 220V.
A kind of 5. automatic heating module of liquid crystal display according to claim 1, it is characterised in that：The heating resistor R4 is uniform
Equidistantly it is coiled in heating film（1）It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721428649.9U CN207301555U (en) | 2017-10-30 | 2017-10-30 | A kind of automatic heating module of liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721428649.9U CN207301555U (en) | 2017-10-30 | 2017-10-30 | A kind of automatic heating module of liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207301555U true CN207301555U (en) | 2018-05-01 |
Family
ID=62274881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721428649.9U Active CN207301555U (en) | 2017-10-30 | 2017-10-30 | A kind of automatic heating module of liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207301555U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110007496A (en) * | 2019-04-17 | 2019-07-12 | 京东方科技集团股份有限公司 | Transparent display and preparation method thereof and driving method, temperature sense window |
| CN110320945A (en) * | 2019-08-07 | 2019-10-11 | 安徽维普电子科技有限公司 | A kind of refrigeration general-purpose control system |
| CN112346269A (en) * | 2020-11-10 | 2021-02-09 | 厦门天马微电子有限公司 | Display panel, heating driving method thereof and display device |
| CN112693312A (en) * | 2021-01-11 | 2021-04-23 | 安徽天健环保车辆部件有限公司 | Intelligent temperature control structure of full liquid crystal combination instrument |
| TWI805843B (en) * | 2018-10-10 | 2023-06-21 | 光遠科技股份有限公司 | Display apparatus |
-
2017
- 2017-10-30 CN CN201721428649.9U patent/CN207301555U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI805843B (en) * | 2018-10-10 | 2023-06-21 | 光遠科技股份有限公司 | Display apparatus |
| CN110007496A (en) * | 2019-04-17 | 2019-07-12 | 京东方科技集团股份有限公司 | Transparent display and preparation method thereof and driving method, temperature sense window |
| CN110320945A (en) * | 2019-08-07 | 2019-10-11 | 安徽维普电子科技有限公司 | A kind of refrigeration general-purpose control system |
| CN112346269A (en) * | 2020-11-10 | 2021-02-09 | 厦门天马微电子有限公司 | Display panel, heating driving method thereof and display device |
| CN112346269B (en) * | 2020-11-10 | 2022-10-11 | 厦门天马微电子有限公司 | Display panel, heating driving method thereof and display device |
| CN112693312A (en) * | 2021-01-11 | 2021-04-23 | 安徽天健环保车辆部件有限公司 | Intelligent temperature control structure of full liquid crystal combination instrument |
| CN112693312B (en) * | 2021-01-11 | 2021-12-28 | 安徽天健环保车辆部件有限公司 | Intelligent temperature control structure of full liquid crystal combination instrument |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207301555U (en) | A kind of automatic heating module of liquid crystal display | |
| CN104362041A (en) | Passive control circuit of alternating-current contactor | |
| CN203690888U (en) | Electric leakage protection plug | |
| CN206557626U (en) | A kind of smart electronicses temperature controller | |
| CN203840609U (en) | LED circuit having overheating protection function | |
| CN206164416U (en) | Brushless DC motor multifunctional controller | |
| CN104571198B (en) | A kind of temperature-control circuit | |
| CN202651766U (en) | Single-phase motor protective device | |
| CN205141635U (en) | Motor overheat protects warning circuit | |
| CN208258144U (en) | A kind of positive alternating current sampling circuit altogether with output voltage clamper | |
| CN200965641Y (en) | AC temperature control circuit | |
| CN206096223U (en) | Buffer circuit is gathered to wide voltage switch volume | |
| CN202503439U (en) | Capacitance-resistance voltage reduction circuit of low power supply | |
| CN205880696U (en) | Electronic heating automatic temperature control ware | |
| CN205690517U (en) | A kind of electric heater control circuit | |
| CN204465948U (en) | Multifunctional LED power supply | |
| CN206879112U (en) | A kind of heat driven control chip | |
| CN208016058U (en) | A kind of LED crosses temperature drop current circuit | |
| CN203275494U (en) | Current detection circuit | |
| CN103423184A (en) | Power-type fan speed control circuit and fan device | |
| CN105897086B (en) | One kind is based on beddo without sensing brush direct current motor constant speed control unit | |
| CN204065734U (en) | A kind of device of the application dissimilar sensor module that automatically switches | |
| CN205376403U (en) | Undervoltage protection ware is crossed to relay drive circuit and self -resuming formula | |
| CN201878385U (en) | Automatic dimming circuit of ecological house | |
| CN203588094U (en) | Simulation temperature control circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |