CN101614431B - Control circuit of air conditioner - Google Patents

Control circuit of air conditioner Download PDF

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Publication number
CN101614431B
CN101614431B CN 200810115583 CN200810115583A CN101614431B CN 101614431 B CN101614431 B CN 101614431B CN 200810115583 CN200810115583 CN 200810115583 CN 200810115583 A CN200810115583 A CN 200810115583A CN 101614431 B CN101614431 B CN 101614431B
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China
Prior art keywords
control circuit
air
resistance
conditioner
light sensor
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CN 200810115583
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Chinese (zh)
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CN101614431A (en
Inventor
王友宁
张守信
程永甫
王伟
吴丽琴
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Qingdao Haier Air Conditioner Gen Corp Ltd
Haier Group Corp
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Qingdao Haier Air Conditioner Gen Corp Ltd
Haier Group Corp
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Priority to CN 200810115583 priority Critical patent/CN101614431B/en
Publication of CN101614431A publication Critical patent/CN101614431A/en
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Abstract

The invention relates to an air conditioner, in particular to a control circuit of an air conditioner. A control circuit board is arranged in the air conditioner; the control circuit board is provided with a control chip; the control circuit board is connected with a photosensitive sensor and a gas sensitive sensor; and signal output ends of the photosensitive sensor and the gas sensitive sensor are connected with a signal input end of the control chip on the control circuit board. The control circuit of the air conditioner overcomes the defects of the prior air conditioner; the gas sensitive sensor and the photosensitive sensor are arranged in the control circuit of the prior air conditioner, so that the air conditioner can automatically start or close the air change function of the air conditioner when the indoor air quality is changed; and when people sleep at night or leave away workplaces and the lamps are turned off, the air conditioner can automatically close or enter a sleep state at night.

Description

The control circuit of air-conditioner
Technical field
The present invention relates to air-conditioner, be specifically related to the control circuit in a kind of air-conditioner.
Background technology
Starting or stoping of air-conditioner, and the conversion of various operational modes are by the output of the control circuit board in air-conditioner control signal, control corresponding execution unit and finish.Be provided with remote signal receiver at described control circuit board, the control signal input ports such as various kinds of sensors, the control signal output on the described control circuit board is connected respectively to display, indicator lamp, pendulum leaf and wind deflector drive motors, fan electromotor, magnetic valve, compressor etc.In existing air-conditioner, generally all be provided with temperature sensor, when indoor temperature arrived design temperature, air-conditioner began to carry out the control instruction that starts or stops operation.
But gas sensor and light sensor are not installed all in existing air-conditioner, though existing air-conditioner has ventilatory, but all be under artificial control, to carry out, when people feel that room air is bad, will be with air conditioner debugging to ventilatory pattern, when people feel that room air takes a turn for the better, the ventilatory pattern of air-conditioner will be closed.Because different people feels it is not identical to the air quality quality, and when people's Comparision is busy, or be difficult for feeling the variation of air quality night when sleeping soundly, therefore, above-mentioned Air conditioner air exchange function only relatively just can be used in the leisure indoor people, and in most of the cases, even indoor air quality is very poor, this ventilatory can not be effectively utilized.Have again and generally also do not have light sensor in the existing air-conditioner, after people open air-conditioning, to after night, people fell asleep, or go out or come off duty when leaving the workplace, if forgotten air-conditioner is closed, air-conditioner will move for a long time, has so both caused the waste of the energy, also can be with and serve potential safety hazard.
Summary of the invention
The object of the invention is to, overcome the above defective that exists in the existing air-conditioner, in the control circuit of existing air-conditioner, gas sensor and light sensor have been added, so that air-conditioner can be when IAQ changes, automatically start or close the ventilatory of air-conditioner, sleeping or leave the workplace after illuminating lamp is closed when people night, air-conditioner night can autoshutdown or enters sleep state.
For achieving the above object, a kind of control circuit of air-conditioner, in described air-conditioner, control circuit board is housed, described control circuit board is provided with control chip, be connected with light sensor and gas sensor at described control circuit board, described light sensor is connected the signal input part of the control chip on signal output part and the described control circuit board and is connected with gas sensor.
Wherein, also be provided with holding circuit between the signal input part of described gas sensor and described control chip, described gas sensor also is connected with pressure filter circuit, and described light sensor also is connected with pressure filter circuit.
Wherein, the output signal holding circuit of described gas sensor is by diode and electrochemical capacitor E 1Be connected in parallel the negative pole of described diode and electrochemical capacitor E 1Positive pole be connected the positive pole of described diode and electrochemical capacitor E with the positive pole of power supply 1Negative pole be connected with the signal output part II of described gas sensor, described diode is used for the overvoltage of output signal being protected described electrochemical capacitor E 1Be used for output signal is carried out filtering.
Wherein, the pressure filter circuit of described gas sensor is by resistance R 1With capacitor C 1After the series connection again with resistance R 2Be connected in parallel resistance R 1With resistance R 2Link, be connected with the signal output part II of described gas sensor, in described resistance R 1With capacitor C 1Line on be connected with the signal output part of described gas sensor, in described resistance R 2With capacitor C 1Line on be connected with earth connection.
Wherein, comprise also on the pressure filter circuit of described light sensor that the power end V of described light sensor is connected with power supply, the signal output part IV of described light sensor and electrochemical capacitor E 2Negative terminal connects, described electrochemical capacitor E 2Positive pole also be connected with the power end V of described light sensor.
Wherein, the pressure filter circuit of described light sensor is by resistance R 4With capacitor C 2After the series connection again with resistance R 3Be connected in parallel resistance R 3With resistance R 4Link, be connected described resistance R with the signal output part IV of described light sensor 4With capacitor C 2Line on be connected with the signal output part of described light sensor, in described resistance R 4With capacitor C 2Line on be connected with earth connection.
Wherein, described power supply is positive 5 volts of power supplys.
Wherein, described light sensor is connected the signal input tube pin of the same a slice control chip on signal output part and the described control circuit board and is connected with gas sensor.
Wherein, described light sensor is connected the signal input tube pin of the different control chip on signal output part and the described control circuit board and is connected with gas sensor.
Advantage of the present invention and beneficial effect are; owing in the control circuit of air-conditioner, added gas sensor and light sensor; so that air-conditioner can be when IAQ changes; automatically start or close the ventilatory of air-conditioner; this function can set at the remote controller of air-conditioner the automatic air-exchanging pattern; when indoor air quality is bad; gas sensor changes air quality state dress into voltage signal; this voltage signal will be sent on the input pin of control chip of control circuit board; when this voltage signal reaches certain threshold value; control chip will be controlled the exhaust ventilation system and start; begin to carry out exhaust ventilation work; when described voltage signal during less than certain threshold value, control chip will be controlled the exhaust ventilation system-down, make air-conditioner stop to carry out exhaust ventilation work.When people need to withdraw from a room for a long time, can close the automatic air-exchanging pattern on the remote controller.
Same light sensor can be with the illuminating lamp shutdown signal that detects, namely when people fall asleep night or leave the workplace through after state, air-conditioner can enter sleep state or autoshutdown automatically.This function can set at the remote controller of air-conditioner the automatic shutdown pattern of turning off the light, when indoor light is closed, light sensor will be exported a voltage signal, or original voltage signal is eliminated, this voltage signal will be sent to the input pin of control chip on the control circuit board, control chip will send control instruction, and air-conditioner is out of service, and air-conditioner just can be activated again when only having people again to press the start button.If stop the operation of air-conditioner after people do not wish to turn off the light, the automatic shutdown pattern of turning off the light that sets on the remote controller can be closed.
Above-mentioned control mode had both made things convenient for the pattern by gas sensor and the operation of light sensor automatic control air conditioner device, had also made things convenient for the needs according to oneself people, the operational mode of artificially control air-conditioner.The present invention is simple in structure, easy to operate, with low cost, control is effective, can make air-conditioner in the situation that increases very little cost, reaches not only environmental protection but also energy-conservation beneficial effect.
Description of drawings
Fig. 1 is the circuit block diagram in the control circuit of air-conditioner of the present invention;
Fig. 2 is the peripheral circuit diagram of gas sensor in the control circuit of air-conditioner of the present invention;
Fig. 3 is the peripheral circuit diagram of light sensor in the control circuit of air-conditioner of the present invention.
Among the figure: 1, gas sensor; 2, diode; 3, electrochemical capacitor E 14, resistance R 15, resistance R 26, capacitor C 17, the signal output part of gas sensor; 8, light sensor; 9, electrochemical capacitor E 210, resistance R 311, resistance R 412, capacitor C 213, the signal output part of light sensor.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples only are used for technical scheme of the present invention more clearly is described, and can not limit protection scope of the present invention with this.
Starting or stoping of air-conditioner, and the conversion of various operational modes are by the control circuit board in air-conditioner output control signal, control that corresponding execution unit finishes.Be provided with remote signal receiver at described control circuit board, the control signal input ports such as various kinds of sensors, the control signal output on the described control circuit board is connected respectively to display, indicator lamp, pendulum leaf and wind deflector drive motors, fan electromotor, magnetic valve, compressor etc.In existing air-conditioner, generally all be provided with temperature sensor, when indoor temperature arrived design temperature, air-conditioner began to carry out the control instruction that starts or stops operation.
As shown in Figure 1 to Figure 3, the specific embodiment of the present invention is to adopt a kind of control circuit of air-conditioner, in described air-conditioner, control circuit board is housed, be connected with light sensor 8 and gas sensor 1 at described control circuit board, the signal input part of the control chip on the signal output part that described light sensor 8 is connected with gas sensor and the described control circuit board is connected.Described control circuit board has been selected the control circuit board in the existing air-conditioner in the present invention.
Described gas sensor 1 also is connected with the output signal holding circuit in the present invention, and described gas sensor 1 also is connected with pressure filter circuit, and described light sensor 8 also is connected with pressure filter circuit.Comprise that also the power end I on the gas sensor 1 is connected with power supply on the output signal holding circuit of described gas sensor 1 and pressure filter circuit, the earth terminal III of gas sensor 1 is connected with ground wire.The output signal holding circuit of described gas sensor 1 is by diode 2 and electrochemical capacitor E 13 are connected in parallel, the negative pole of described diode 2 and electrochemical capacitor E 13 positive pole is connected with the positive pole of power supply, the whole utmost point of described diode 2 and electrochemical capacitor E 13 negative pole is connected with the signal output part II of described gas sensor 1, and described diode 2 is used for the overvoltage of output signal being protected described electrochemical capacitor E 13 are used for output signal is carried out filtering.The pressure filter circuit of described gas sensor 1 is by resistance R 14 and capacitor C 16 be connected in series after again with resistance R 25 are connected in parallel, resistance R 14 and resistance R 25 link is connected with the signal output part II of described gas sensor 1, in described resistance R 14 and capacitor C 1Be connected with the signal output part of described gas sensor 1 on 6 the line, in described resistance R 25 and capacitor C 1Be connected with earth connection on 6 the line.
On the pressure filter circuit of described light sensor 8, also comprise in the present invention, be connected on the power end V of described light sensor 8, be connected to the electrochemical capacitor E on the signal output part IV of described light sensor 8 29 negative terminals, described electrochemical capacitor E 29 positive pole also is connected with the power supply V end of described light sensor 8.The pressure filter circuit of described light sensor 8 is by resistance R 411 and capacitor C 212 be connected in series after again with resistance R 310 are connected in parallel, resistance R 310 and resistance R 411 link is connected described resistance R with described photosensitive 8 signal output part IV end 411 and capacitor C 2Be connected with the signal output part 13 of described light sensor 8 on 12 the line, in described resistance R 411 and capacitor C 2Be connected with earth connection on 12 the line.
Described power supply is positive 5 volts of power supplys in the present invention.The signal input tube pin of the same a slice control chip on the signal output part that described light sensor 8 is connected with gas sensor and the described control circuit board is connected.The signal input tube pin of different control chips on the signal output part that described light sensor 8 is connected with gas sensor and the described circuit board connects.
Better embodiment of the present invention is:
Gas sensor 1 is selected: 44005 2-5;
Diode 2 is selected: RLS4148;
Electrochemical capacitor E 13 select: 4.7 μ F-16V;
Resistance R 14 select: 1K Ω;
Resistance R 25 select: 4.7-1%K Ω;
Capacitor C 16 select: 1nF
Light sensor 8 is selected: tept5600
Electrochemical capacitor E 29 select: 22UF-35V-105 ℃
Resistance R 310 select: 20K-± 1% Ω;
Resistance R 411 select: 1K Ω
Capacitor C 212 select: 0.01 μ F
The above only is preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (7)

1. the control circuit of an air-conditioner, in described air-conditioner, control circuit board is housed, described control circuit board is provided with control chip, it is characterized in that, be connected with light sensor and gas sensor at described control circuit board, described light sensor is connected the signal input part of the control chip on signal output part and the described control circuit board and is connected with gas sensor;
Wherein, also be provided with holding circuit between the signal input part of described gas sensor and described control chip, described gas sensor also is connected with pressure filter circuit, and described light sensor also is connected with pressure filter circuit;
Wherein, the output signal holding circuit of described gas sensor is by diode and electrochemical capacitor E 1Be connected in parallel the negative pole of described diode and electrochemical capacitor E 1Positive pole be connected the positive pole of described diode and electrochemical capacitor E with the positive pole of power supply 1Negative pole be connected with the signal output part II of described gas sensor, described diode is used for the overvoltage of output signal being protected described electrochemical capacitor E 1Be used for output signal is carried out filtering.
2. the control circuit of air-conditioner as claimed in claim 1 is characterized in that, the pressure filter circuit of described gas sensor is by resistance R 1With capacitor C 1After the series connection again with resistance R 2Be connected in parallel resistance R 1With resistance R 2Link, be connected with the signal output part II of described gas sensor, in described resistance R 1With capacitor C 1Line on be connected with the signal output part of described gas sensor, in described resistance R 2With capacitor C 1Line on be connected with earth connection.
3. the control circuit of air-conditioner as claimed in claim 1 is characterized in that, also comprises on the pressure filter circuit of described light sensor, and the power end V of described light sensor is connected with power supply, the signal output part IV of described light sensor and electrochemical capacitor E 2Negative terminal connects, described electrochemical capacitor E 2Positive pole also be connected with the power end V of described light sensor.
4. the control circuit of air-conditioner as claimed in claim 3 is characterized in that, the pressure filter circuit of described light sensor is by resistance R 4With capacitor C 2After the series connection again with resistance R 3Be connected in parallel resistance R 3With resistance R 4Link, be connected described resistance R with the signal output part IV of described light sensor 4With capacitor C 2Line on be connected with the signal output part of described light sensor, in described resistance R 4With capacitor C 2Line on be connected with earth connection.
5. such as the control circuit of claim 2 or 4 described air-conditioners, it is characterized in that described power supply is positive 5 volts of power supplys.
6. the control circuit of air-conditioner as claimed in claim 1 is characterized in that, described light sensor is connected the signal input tube pin of the same a slice control chip on signal output part and the described control circuit board and is connected with gas sensor.
7. the control circuit of air-conditioner as claimed in claim 1 is characterized in that, described light sensor is connected the signal input tube pin of the different control chip on signal output part and the described control circuit board and is connected with gas sensor.
CN 200810115583 2008-06-25 2008-06-25 Control circuit of air conditioner Active CN101614431B (en)

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Application Number Priority Date Filing Date Title
CN 200810115583 CN101614431B (en) 2008-06-25 2008-06-25 Control circuit of air conditioner

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Application Number Priority Date Filing Date Title
CN 200810115583 CN101614431B (en) 2008-06-25 2008-06-25 Control circuit of air conditioner

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CN101614431B true CN101614431B (en) 2013-01-30

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105546769B (en) * 2016-02-25 2019-06-04 美的集团武汉制冷设备有限公司 The control method and air conditioner of air conditioner
CN106247527B (en) * 2016-07-27 2019-05-17 珠海格力电器股份有限公司 The method and device of night control is carried out to air-conditioning using night control model
CN106765971B (en) * 2016-12-30 2020-04-21 广东美的制冷设备有限公司 Air conditioner control method and device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2482120Y (en) * 2001-01-22 2002-03-13 珠海格力电器股份有限公司 Frequency-change air conditioner
CN2663860Y (en) * 2003-06-30 2004-12-15 海尔集团公司 Air conditioner with carbon monoxide over-concentration alarm
JP2007207258A (en) * 2007-02-19 2007-08-16 Toshiba Corp Distributed control system
JP2007323526A (en) * 2006-06-02 2007-12-13 Matsushita Electric Works Ltd Environmental control system and input device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2482120Y (en) * 2001-01-22 2002-03-13 珠海格力电器股份有限公司 Frequency-change air conditioner
CN2663860Y (en) * 2003-06-30 2004-12-15 海尔集团公司 Air conditioner with carbon monoxide over-concentration alarm
JP2007323526A (en) * 2006-06-02 2007-12-13 Matsushita Electric Works Ltd Environmental control system and input device
JP2007207258A (en) * 2007-02-19 2007-08-16 Toshiba Corp Distributed control system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CNG05B23/02Y 2007.10.10

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