CN203552664U - Brightness control device for air-conditioner display screen, and air-conditioner indoor unit - Google Patents
Brightness control device for air-conditioner display screen, and air-conditioner indoor unit Download PDFInfo
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- CN203552664U CN203552664U CN201320458015.3U CN201320458015U CN203552664U CN 203552664 U CN203552664 U CN 203552664U CN 201320458015 U CN201320458015 U CN 201320458015U CN 203552664 U CN203552664 U CN 203552664U
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Abstract
The utility model discloses a brightness control device for an air-conditioner display screen. The device comprises a signal input circuit and a control circuit, wherein the signal input circuit is used for acquiring the brightness of an indoor environment, processing the acquired brightness of the indoor environment into a corresponding voltage signal, and then outputting the processed voltage signal to the control circuit; the control circuit is connected with a signal input circuit, and used for receiving the voltage signal outputted by the signal input circuit, comparing the voltage signal with a preset reference voltage, and then controlling the brightness of the air-conditioner display screen according to the compared result. The utility model further discloses an air-conditioner indoor unit. With the adoption of the scheme disclosed by the utility model, the purpose of controlling the brightness of the air-conditioner display screen to be a corresponding high brightness or low brightness according to the brightness of the indoor environment can be realized without a high cost.
Description
Technical field
The utility model relates to air-conditioning technical field, specially refers to a kind of air conditioner brightness of display screen control device and indoor apparatus of air conditioner.
Background technology
Light sensor (Light-Sensor), mainly apply at present in the digital products such as mobile phone and panel computer, it can drive MCU automatically to regulate brightness of display screen according to the power of ambient light, the light sensing technology of using at digital products such as mobile phone and panel computers at present can be controlled the backlight illumination of display screen and realize a plurality of ranks, realizes the comfortableness requirement of human eye to ambient brightness and brightness of display screen.At present, air conditioner is also more and more focused on appearance design except the requirement of low-power consumption, wherein also comprise the outward appearance display requirement to display screen, for the display effect emerging in an endless stream now, more need display brightness to control, with coupling display effect, make the perception of human eye also can be more comfortable simultaneously.But, because the demonstration of air conditioner does not need the brilliance control of too many grade, if adopt the light sensor in the electronic products such as mobile phone, increased undoubtedly larger cost.
Utility model content
Fundamental purpose of the present utility model, for a kind of air conditioner brightness of display screen control device and indoor apparatus of air conditioner are provided, is intended to according to indoor environment brilliance control air conditioner brightness of display screen, and without higher cost.
The utility model provides a kind of air conditioner brightness of display screen control device, comprising:
Signal input circuit, for gathering indoor environment brightness, and is corresponding voltage signal to the indoor environment brightness processed collecting, and exports the voltage signal after processing to control circuit;
Control circuit, is connected with described signal input circuit, for receiving the voltage signal of signal input circuit output, compares this voltage signal and preset reference voltage, according to the brightness of the display screen of comparison result control air conditioner.
Preferably, described signal input circuit comprises:
Light sensor, for gathering indoor environment brightness, and exports current signal corresponding to this indoor environment brightness;
Amplification module, is connected with the output terminal of described light sensor, for the current signal of light sensor output being enlarged into the current signal with described reference voltage same levels;
Modular converter, is connected with described amplification module, for the current signal amplifying through amplification module is converted to voltage signal, and exports this voltage signal to described control circuit.
Preferably, described signal input circuit also comprises:
Filtration module, is connected between described light sensor and amplification module, for the current signal of light sensor output is carried out to filtering.
Preferably, described control circuit comprises:
Main control chip, is connected with the modular converter of described signal input circuit, for receiving the voltage signal of modular converter output, according to the comparison result of voltage signal and preset reference voltage, exports corresponding level signal to driver module;
Driver module, is connected with the output terminal of described main control chip, and for receiving the level signal of main control chip output, the display screen that is air conditioner according to this level signal provides corresponding magnitude of voltage, controls the brightness of the display screen of air conditioner.
Preferably, described main control chip comprises:
Voltage comparator, for comparing the voltage signal of the modular converter output receiving and preset reference voltage;
Collecting unit, for gathering the current backlight luminance signal of the display screen feedback of air conditioner;
Level output unit, for according to the comparison result of voltage signal and preset reference voltage, and described current backlight luminance signal is exported corresponding level signal to driver module.
Preferably, described driver module comprises the first driver module and the second driver module being connected with the output terminal of described main control chip, wherein:
Described the first driven element module, for receiving the high level signal of main control chip output, the display screen that is air conditioner according to this high level signal provides high voltage, and the brightness of controlling the display screen of air conditioner is high brightness;
Described the second driven element module, for receiving the low level signal of main control chip output, the display screen that is air conditioner according to low high level signal provides low-voltage, and the brightness of controlling the display screen of air conditioner is low-light level.
Preferably, if described voltage signal is more than or equal to preset reference voltage, and the current backlight luminance signal of the display screen of the air conditioner collecting feedback is low-light level, and main control chip output high level signal is to described the first driven element module; If described voltage signal is less than preset reference voltage, and the current backlight luminance signal of the display screen of the air conditioner collecting feedback is high brightness, and main control chip output low level signal is to described the second driven element module.
Preferably, described light sensor is photodiode or photoresistance.
Preferably, described amplification module is operational amplifier; Described modular converter is capacitance-resistance loop; Described filtration module is filter capacitor.
The utility model also provides a kind of indoor apparatus of air conditioner, comprises air conditioner brightness of display screen control device, and described air conditioner brightness of display screen control device comprises:
Signal input circuit, for gathering indoor environment brightness, and is corresponding voltage signal to the indoor environment brightness processed collecting, and exports the voltage signal after processing to control circuit;
Control circuit, is connected with described signal input circuit, for receiving the voltage signal of signal input circuit output, compares this voltage signal and preset reference voltage, according to the brightness of comparison result control display screen.
The utility model gathers indoor environment brightness by the light sensor of signal input circuit, and the current signal of the indoor environment brightness collecting is amplified and conversion process, be treated to corresponding voltage signal, and exported the voltage signal after processing to control circuit; Control circuit receives after voltage signal, compares this voltage signal and preset reference voltage, and exports corresponding level signal to corresponding driver module according to comparison result, controls the brightness of the display screen of air conditioner by driver module.Adopt this device to control the brightness of the display screen of air conditioner, without higher cost, can realize according to the brightness of display screen of indoor environment brilliance control air conditioner is corresponding high brightness or low-light level.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model air conditioner brightness of display screen control device the first embodiment;
Fig. 2 is the structural representation of the signal input circuit of the utility model air conditioner brightness of display screen control device;
Fig. 3 is the structural representation of the utility model air conditioner brightness of display screen control device the second embodiment;
Fig. 4 is the structural representation of the control circuit of the utility model air conditioner brightness of display screen control device;
Fig. 5 is the structural representation of main control chip of the control circuit of the utility model air conditioner brightness of display screen control device.
The realization of the utility model object, functional characteristics and advantage, in connection with embodiment, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The utility model provides a kind of air conditioner brightness of display screen control device.By light sensor, gather indoor environment brightness, after comparing with preset reference voltage, when room brilliancy is lower, the brightness of controlling the display screen of air conditioner is low-light level, and when room brilliancy is higher, the brightness of controlling the display screen of air conditioner is high brightness.
With reference to Fig. 1, Fig. 1 is the structural representation of the utility model air conditioner brightness of display screen control device the first embodiment.
The air conditioner brightness of display screen control device that the present embodiment provides, comprising:
In the present embodiment, by signal input circuit 10, gather indoor environment brightness, indoor environment brightness, with the formal output of current signal, is then processed this current signal, be converted into corresponding voltage signal, and export the voltage signal after processing to connected control circuit 20; Control circuit 20 receives after signal input circuit 10 voltage signal corresponding with gathering indoor environment brightness that export, this voltage signal and preset reference voltage are compared, and according to the brightness of the display screen of the output control air conditioner of comparison, when voltage signal is greater than reference voltage, the brightness of controlling the display screen of air conditioner is high brightness, when voltage signal is less than reference voltage, the brightness of controlling the display screen of air conditioner is low-light level.The preset reference voltage proposing in the present embodiment is by software, to compile in advance the cut off value of setting, for voltage signal corresponding to indoor environment brightness collecting with signal input circuit 10, compare, the result of comparison is as the instruction of the brightness of the display screen of control air conditioner.
With reference to Fig. 2, Fig. 2 is the structural representation of the signal input circuit of the utility model air conditioner brightness of display screen control device.
In the above-described embodiments, signal input circuit 10 comprises light sensor 11, amplification module 12 and modular converter 13, wherein:
With reference to Fig. 3 and Fig. 4, Fig. 3 is the structural representation of the control circuit of the utility model air conditioner brightness of display screen control device; Fig. 4 is the structural representation of main control chip of the control circuit of the utility model air conditioner brightness of display screen control device.
In the above-described embodiments, control circuit 20 comprises main control chip 21 and driver module 22, wherein:
Main control chip 21, is connected with the modular converter 13 of signal input circuit 10, for receiving the voltage signal of modular converter 13 output, according to the comparison result of voltage signal and preset reference voltage, exports corresponding level signal to driver module 22; Driver module 22, is connected with the output terminal of main control chip 21, and for receiving the level signal of main control chip 21 outputs, the display screen that is air conditioner according to this level signal provides corresponding magnitude of voltage, controls the brightness of the display screen of air conditioner.
Further, main control chip 21 comprises voltage comparator 211, collecting unit 212 and level output unit 213, wherein:
Voltage comparator 211, for comparing the voltage signal of modular converter 13 outputs that receive and preset reference voltage; Collecting unit 212, for gathering the current backlight luminance signal of the display screen feedback of air conditioner; Level output unit 213, for according to the comparison result of voltage signal and preset reference voltage, and current backlight luminance signal is exported corresponding level signal to driver module 22.
Further, driver module 22 comprises the first driver module 221 and the second driver module 222 being connected with the output terminal of main control chip 21, wherein:
The first driven element module 221, for receiving the high level signal of main control chip output, the display screen that is air conditioner according to this high level signal provides high voltage, and the brightness of controlling the display screen of air conditioner is high brightness; The second driven element module 222, for receiving the low level signal of main control chip output, the display screen that is air conditioner according to low high level signal provides low-voltage, and the brightness of controlling the display screen of air conditioner is low-light level.
If voltage comparator 211 compares indoor environment brightness, corresponding voltage signal is more than or equal to preset reference voltage, and the current backlight luminance signal of the display screen of the air conditioner that collecting unit 212 collects feedback is low-light level, the level output unit 213 of main control chip 21 is exported high level signal to the first driven element modules 221, and the brightness of controlling the display screen of air conditioners by the first driven element module 221 is high brightness; If voltage comparator 211 compares indoor environment brightness, corresponding voltage signal is less than preset reference voltage, and the current backlight luminance signal of the display screen of the air conditioner that collecting unit 212 collects feedback is high brightness, the brightness that level output unit 213 output low level signal to the second driven element modules 222 of main control chip 21 are controlled the display screen of air conditioner is low-light level.
The air conditioner brightness of display screen control device that the utility model the first embodiment provides, by being arranged on the light sensor 11 of the signal input circuit 10 of indoor apparatus of air conditioner, gather indoor environment brightness, when indoor environment brightness is higher, the leakage current of photodiode increases, the output terminal of line sensor 11 can be exported larger current signal to connected amplification module 12, by amplification module 12, this current signal is enlarged into the current signal with reference voltage same levels; Then modular converter 13 is converted to corresponding voltage signal by this current signal, and exported to the voltage comparator 211 of main control chip 21, by voltage comparator 211, this voltage signal and reference voltage are compared, now the result of comparison is that voltage signal corresponding to indoor environment brightness is more than or equal to reference voltage.Meanwhile, the current backlight luminance signal that the display screen that the collecting unit 212 of main control chip 21 gathers air conditioner feeds back, further judges whether the current backlight brightness of display screen is bright state, thereby forms closed loop.If the current backlight brightness of display screen is bright state, by level output unit 213 output high level to the first driven element modules 221 of main control chip 21, the display screen that the first driven element module 221 is air conditioner according to this high level signal provides high voltage, this high voltage can be 12v, thereby the brightness of the display screen of control air conditioner is high brightness.
When indoor environment brightness is lower, the leakage current of photodiode reduces, the output terminal of line sensor 11 can be exported less current signal to connected amplification module 12, by amplification module 12, this current signal is enlarged into the current signal with reference voltage same levels; Then modular converter 13 is converted to corresponding voltage signal by this current signal, and exported to the voltage comparator 211 of main control chip 21, by voltage comparator 211, this voltage signal and reference voltage are compared, now the result of comparison is that voltage signal corresponding to indoor environment brightness is less than reference voltage.Meanwhile, the current backlight luminance signal that the display screen that the collecting unit 212 of main control chip 21 gathers air conditioner feeds back, further judges whether the current backlight brightness of display screen is bright state, thereby forms closed loop.If the current backlight brightness of display screen is gloomy state, by level output unit 213 output low level to the second driven element modules 222 of main control chip 21, the display screen that the second driven element module 222 is air conditioner according to this low level signal provides low-voltage, this high voltage can be 5v, thereby the brightness of the display screen of control air conditioner is low-light level.
The present embodiment gathers indoor environment brightness by the light sensor 11 of signal input circuit 10, and the current signal of the indoor environment brightness collecting is amplified and conversion process, be treated to corresponding voltage signal, and exported the voltage signal after processing to control circuit 20; Control circuit 20 receives after voltage signal, compares this voltage signal and preset reference voltage, and exports corresponding level signal to corresponding driver module 22 according to comparison result, controls the brightness of the display screen of air conditioners by driver module 22.Adopt this device to control the brightness of the display screen of air conditioner, without higher cost, can realize according to the brightness of display screen of indoor environment brilliance control air conditioner is corresponding high brightness or low-light level.
With reference to Fig. 5, Fig. 5 is the structural representation of the utility model air conditioner brightness of display screen control device the second embodiment.
On the basis of the utility model air conditioner brightness of display screen control device the first embodiment, signal input circuit 10 also comprises filtration module 14, this filtration module 14 is connected between light sensor 11 and amplification module 13, for the current signal of light sensor 11 outputs is carried out to filtering, current signal is carried out making its waveform level and smooth after filtering, remove high-frequency impulse simultaneously.In the present embodiment, filtration module 14 can adopt the filter capacitor that electric capacity is larger, makes by the filtered waveform of this larger filter capacitor more smoothly, facilitates voltage comparator 211 comparison of main control chip 21.
The utility model also provides a kind of indoor apparatus of air conditioner.
The indoor apparatus of air conditioner that the present embodiment provides, comprises air conditioner brightness of display screen control device, and air conditioner brightness of display screen control device comprises:
This indoor apparatus of air conditioner has comprised whole technical schemes of the whole embodiment of above-mentioned air conditioner brightness of display screen control device, and the technique effect reaching is also identical, at this, does not repeat.
The foregoing is only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure transformation that utilizes the utility model instructions and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (9)
1. an air conditioner brightness of display screen control device, is characterized in that, comprising:
Signal input circuit, for gathering indoor environment brightness, and is corresponding voltage signal to the indoor environment brightness processed collecting, and exports the voltage signal after processing to control circuit;
Control circuit, is connected with described signal input circuit, for receiving the voltage signal of signal input circuit output, compares this voltage signal and preset reference voltage, according to the brightness of the display screen of comparison result control air conditioner.
2. air conditioner brightness of display screen control device according to claim 1, is characterized in that, described signal input circuit comprises:
Light sensor, for gathering indoor environment brightness, and exports current signal corresponding to this indoor environment brightness;
Amplification module, is connected with the output terminal of described light sensor, for the current signal of light sensor output being enlarged into the current signal with described reference voltage same levels;
Modular converter, is connected with described amplification module, for the current signal amplifying through amplification module is converted to voltage signal, and exports this voltage signal to described control circuit.
3. air conditioner brightness of display screen control device according to claim 2, is characterized in that, described signal input circuit also comprises:
Filtration module, is connected between described light sensor and amplification module, for the current signal of light sensor output is carried out to filtering.
4. air conditioner brightness of display screen control device according to claim 3, is characterized in that, described control circuit comprises:
Main control chip, is connected with the modular converter of described signal input circuit, for receiving the voltage signal of modular converter output, according to the comparison result of voltage signal and preset reference voltage, exports corresponding level signal to driver module;
Driver module, is connected with the output terminal of described main control chip, and for receiving the level signal of main control chip output, the display screen that is air conditioner according to this level signal provides corresponding magnitude of voltage, controls the brightness of the display screen of air conditioner.
5. air conditioner brightness of display screen control device according to claim 4, is characterized in that, described main control chip comprises:
Voltage comparator, for comparing the voltage signal of the modular converter output receiving and preset reference voltage;
Collecting unit, for gathering the current backlight luminance signal of the display screen feedback of air conditioner;
Level output unit, for according to the comparison result of voltage signal and preset reference voltage, and described current backlight luminance signal is exported corresponding level signal to driver module.
6. air conditioner brightness of display screen control device according to claim 5, is characterized in that, described driver module comprises the first driver module and the second driver module being connected with the output terminal of described main control chip, wherein:
Described the first driven element module, for receiving the high level signal of main control chip output, the display screen that is air conditioner according to this high level signal provides high voltage, and the brightness of controlling the display screen of air conditioner is high brightness;
Described the second driven element module, for receiving the low level signal of main control chip output, the display screen that is air conditioner according to low high level signal provides low-voltage, and the brightness of controlling the display screen of air conditioner is low-light level.
7. air conditioner brightness of display screen control device according to claim 6, is characterized in that, described light sensor is photodiode or photoresistance.
8. air conditioner brightness of display screen control device according to claim 7, is characterized in that, described amplification module is operational amplifier; Described modular converter is capacitance-resistance loop; Described filtration module is filter capacitor.
9. an indoor apparatus of air conditioner, comprises the air conditioner brightness of display screen control device as described in any one in claim 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320458015.3U CN203552664U (en) | 2013-07-29 | 2013-07-29 | Brightness control device for air-conditioner display screen, and air-conditioner indoor unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320458015.3U CN203552664U (en) | 2013-07-29 | 2013-07-29 | Brightness control device for air-conditioner display screen, and air-conditioner indoor unit |
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| CN203552664U true CN203552664U (en) | 2014-04-16 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134434A (en) * | 2014-07-16 | 2014-11-05 | 广东美的集团芜湖制冷设备有限公司 | Air conditioner brightness adjusting method and air conditioner |
| CN104570714A (en) * | 2015-01-12 | 2015-04-29 | 深圳市宏嘉科创电子有限公司 | Bluetooth watch with low power consumption |
| CN106356037A (en) * | 2016-09-30 | 2017-01-25 | 广东美的制冷设备有限公司 | Control method, control device, display device and air detection device |
| CN107967898A (en) * | 2017-11-01 | 2018-04-27 | 昆山龙腾光电有限公司 | Backlight regulating circuit and backlight adjusting method |
| CN108731191A (en) * | 2017-04-20 | 2018-11-02 | 奥克斯空调股份有限公司 | A kind of air conditioner display screen brightness control method and device |
| CN108847188A (en) * | 2018-06-05 | 2018-11-20 | 珠海格力电器股份有限公司 | Backlight source circuit and its back light source brightness control method, device and electronic equipment |
-
2013
- 2013-07-29 CN CN201320458015.3U patent/CN203552664U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134434A (en) * | 2014-07-16 | 2014-11-05 | 广东美的集团芜湖制冷设备有限公司 | Air conditioner brightness adjusting method and air conditioner |
| CN104570714A (en) * | 2015-01-12 | 2015-04-29 | 深圳市宏嘉科创电子有限公司 | Bluetooth watch with low power consumption |
| CN106356037A (en) * | 2016-09-30 | 2017-01-25 | 广东美的制冷设备有限公司 | Control method, control device, display device and air detection device |
| CN108731191A (en) * | 2017-04-20 | 2018-11-02 | 奥克斯空调股份有限公司 | A kind of air conditioner display screen brightness control method and device |
| CN108731191B (en) * | 2017-04-20 | 2020-07-07 | 奥克斯空调股份有限公司 | Air conditioner display screen brightness control method and device |
| CN107967898A (en) * | 2017-11-01 | 2018-04-27 | 昆山龙腾光电有限公司 | Backlight regulating circuit and backlight adjusting method |
| CN108847188A (en) * | 2018-06-05 | 2018-11-20 | 珠海格力电器股份有限公司 | Backlight source circuit and its back light source brightness control method, device and electronic equipment |
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