CN203858468U - Air conditioner standby power consumption control circuit and air conditioner - Google Patents
Air conditioner standby power consumption control circuit and air conditioner Download PDFInfo
- Publication number
- CN203858468U CN203858468U CN201420216932.5U CN201420216932U CN203858468U CN 203858468 U CN203858468 U CN 203858468U CN 201420216932 U CN201420216932 U CN 201420216932U CN 203858468 U CN203858468 U CN 203858468U
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- 238000002955 isolation Methods 0.000 claims description 29
- 239000003990 capacitor Substances 0.000 claims description 27
- 239000003381 stabilizer Substances 0.000 claims description 15
- 230000000087 stabilizing effect Effects 0.000 claims description 14
- 238000010586 diagram Methods 0.000 description 4
- 230000005693 optoelectronics Effects 0.000 description 2
- 230000036039 immunity Effects 0.000 description 1
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- Air Conditioning Control Device (AREA)
Abstract
The utility model discloses an air conditioner standby power consumption control circuit and an air conditioner. The air conditioner standby power consumption control circuit comprises a power supply, a switching circuit, a motor driving board, an MCU which is used for controlling the switching circuit to be a switched off state in the standby state of the air conditioner so as to disconnect the input of standby voltage outputted by the power supply to the motor driving board, an isolating circuit used for isolating the MCU and the switching circuit, and a working voltage input end which is used for providing working voltage for the isolating circuit; the switching circuit is connected between the power supply and the motor driving board; a control signal output end of the MCU is connected with a control end of the switching circuit through the isolating circuit; and the working voltage input end is connected with the isolating circuit. With the air conditioner standby power consumption control circuit of the utility model adopted, standby voltage of the air conditioner will not generate power consumption on the motor driving board, and therefore, an energy-saving property of the air conditioner can be realized.
Description
Technical Field
The utility model relates to an air conditioner technical field, in particular to standby power consumption control circuit and air conditioner of air conditioner.
Background
At present, the energy saving performance of an air conditioner is an important subject in the research of the air conditioner, and when the air conditioner is in a standby state, a 15V standby voltage output by a power supply of the air conditioner is not only supplied for standby operation of the air conditioner, but also output to a motor driving board of the air conditioner through a corresponding voltage stabilizing device, so that the 15V standby voltage generates corresponding power consumption on the motor driving board, and the energy saving performance of the air conditioner is not high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a stand-by power consumption control circuit of air conditioner aims at reducing the stand-by power consumption of air conditioner, realizes energy-conserving purpose.
In order to achieve the above object, the present invention provides a standby power control circuit of an air conditioner, which includes a power supply, a switching circuit, a motor driving board, an MCU for controlling the switching circuit to be in an off state when the air conditioner is in the standby state, so as to disconnect the MCU for inputting the standby voltage outputted from the power supply to the motor driving board, an isolation circuit for isolating the MCU from the switching circuit, and a working voltage input terminal for providing a working voltage to the isolation circuit; wherein,
the switch circuit is connected between the power supply and the motor driving plate; the control signal output end of the MCU is connected with the control end of the switch circuit through the isolation circuit; the working voltage input end is connected with the isolation circuit.
Preferably, the standby power consumption control circuit of the air conditioner further comprises a voltage stabilizing circuit, and the voltage stabilizing circuit is connected between the switching circuit and the motor driving board.
Preferably, the isolation circuit comprises a first resistor, a second resistor, a third resistor, a first triode and a photoelectric coupler; wherein,
the first end of the first resistor is connected with the working voltage input end, and the second end of the first resistor is connected with the anode of a light emitting diode in the photoelectric coupler; the cathode of a light emitting diode in the photoelectric coupler is connected with the collector of the first triode, the collector of the triode in the photoelectric coupler is connected with the switching circuit, and the emitter of the triode in the photoelectric coupler is grounded; the emitting electrode of the first triode is grounded, the base electrode of the first triode is connected with the control signal output end of the MCU through the second resistor, and the base electrode of the first triode is grounded through the third resistor.
Preferably, the switch circuit includes a fourth resistor, a fifth resistor, a sixth resistor, and a second transistor; wherein,
the fourth resistor is connected with the fifth resistor in parallel, one end of the fourth resistor is connected with a collector of a triode in the photoelectric coupler, and the other end of the fourth resistor is respectively connected with a base of the second triode and the first end of the sixth resistor; the second end of the sixth resistor is connected with the emitter of the second triode, and the emitter of the second triode is also connected with the power supply; and the collector of the second triode is connected with the voltage stabilizing circuit.
Preferably, the voltage stabilizing circuit comprises a first capacitor, a second capacitor, an electrolytic capacitor and a voltage stabilizer; wherein,
the power supply input end of the voltage stabilizer is connected with the collector electrode of the second triode, the power supply output end of the voltage stabilizer is connected with the motor drive board, and the ground end of the voltage stabilizer is grounded; the first end of the first capacitor is connected with the power input end of the voltage stabilizer, and the second end of the first capacitor is grounded; the first end of the second capacitor is connected with the power output end of the voltage stabilizer, and the second end of the second capacitor is grounded; the anode of the electrolytic capacitor is connected with the power output end of the voltage stabilizer, and the cathode of the electrolytic capacitor is grounded.
Preferably, the first transistor in the isolation circuit is an NPN transistor.
Preferably, the second transistor in the switch circuit is a PNP transistor.
The utility model also provides an air conditioner, this air conditioner includes stand-by power consumption control circuit, stand-by power consumption control circuit includes power, switch circuit, motor drive board, is used for controlling when the air conditioner is in the stand-by state the switch circuit is the off-state, in order to cut off the stand-by voltage input of power output to the MCU of motor drive board, be used for to the MCU with the isolating circuit that switch circuit keeps apart and be used for providing operating voltage's operating voltage input for the isolating circuit; wherein,
the switch circuit is connected between the power supply and the motor driving plate; the control signal output end of the MCU is connected with the control end of the switch circuit through the isolation circuit; the working voltage input end is connected with the isolation circuit.
The utility model provides a stand-by power consumption control circuit of air conditioner, including power, switch circuit, motor drive board, be used for controlling switch circuit for the off-state when air conditioner standby state to the stand-by voltage input that the off-power exported when air conditioner standby state is to the MCU of motor drive board, be used for carrying out the buffer circuit of keeping apart MCU and switch circuit and be used for providing operating voltage's operating voltage input for buffer circuit. The switch circuit is connected between the power supply and the motor drive board, and the control signal output end of the MCU is connected with the control end of the switch circuit through the isolation circuit. The utility model discloses because when air conditioner standby state, be off-state through the corresponding control signal control switch circuit of MCU output for the standby voltage that the power exported when air conditioner standby state can not input the motor drive board to the air conditioner, thereby avoided this standby voltage to produce power consumption on the motor drive board, thereby reduced the standby power consumption of air conditioner, realized energy-conserving purpose.
Drawings
Fig. 1 is a block diagram of a circuit structure of a standby power consumption control circuit of an air conditioner according to the present invention;
fig. 2 is a circuit structure diagram of the standby power consumption control circuit of the air conditioner of the present invention.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The utility model provides a stand-by power consumption control circuit of air conditioner. Fig. 1 is a block diagram of a circuit structure of a standby power consumption control circuit of an air conditioner according to the present invention.
Referring to fig. 1, the standby power consumption control circuit of the air conditioner of this embodiment includes a power supply 101, a switching circuit 102, a motor driving board 103, an MCU104, an isolation circuit 105, a working voltage input terminal 106, and a voltage stabilizing circuit 107. The switching circuit 102 is connected between the power supply 101 and the input end of the voltage stabilizing circuit 107, the output end of the voltage stabilizing circuit 107 is connected with the motor driving board 103, and the control signal output end of the MCU104 is connected with the control end of the switching circuit 102 through the isolation circuit 105; the operating voltage input 106 is connected to the isolation circuit 105.
Specifically, the isolation circuit 105 is used for isolating the MCU104 from the switch circuit 102, in this embodiment, the MCU104 and the switch circuit 102 are isolated by a photocoupler, and the isolation circuit 105 plays a role in resisting interference; the operating voltage input 106 is used to provide an operating voltage for the isolation circuit 105. When the air conditioner is in the standby state, the MCU104 in this embodiment outputs a corresponding control signal to the control terminal of the switching circuit 102, and controls the switching circuit 102 to be in the off state, so that the standby voltage output by the power supply 101 in the standby state of the air conditioner cannot be input to the motor driving board 103 of the air conditioner, thereby avoiding power consumption of the standby voltage on the motor driving board 103, reducing the standby power consumption of the air conditioner, and achieving the purpose of energy saving.
The utility model provides a stand-by power consumption control circuit of air conditioner, including power, switch circuit, motor drive board, be used for controlling switch circuit for the off-state when air conditioner standby state to the stand-by voltage input that the off-power exported when air conditioner standby state is to the MCU of motor drive board, be used for carrying out the buffer circuit of keeping apart MCU and switch circuit and be used for providing operating voltage's operating voltage input for buffer circuit. The switch circuit is connected between the power supply and the motor drive board, and the control signal output end of the MCU is connected with the control end of the switch circuit through the isolation circuit.
The utility model discloses because when air conditioner standby state, be off-state through the corresponding control signal control switch circuit of MCU output for the standby voltage that the power exported when air conditioner standby state can not input the motor drive board to the air conditioner, thereby avoided this standby voltage to produce power consumption on the motor drive board, thereby reduced the standby power consumption of air conditioner, realized energy-conserving purpose.
Fig. 2 is a circuit structure diagram of the standby power consumption control circuit of the air conditioner of the present invention.
Referring to fig. 2, the standby power consumption control circuit of the air conditioner in the present embodiment includes a power supply 201, a switching circuit 202, a motor driving board 203, an MCU204, an isolation circuit 205, a working voltage input terminal 206, and a voltage stabilizing circuit 207. The switching circuit 202 is connected between the power supply 201 and the input end of the voltage stabilizing circuit 207, the output end of the voltage stabilizing circuit 207 is connected with the motor driving board 203, and the control signal output end of the MCU204 is connected with the control end of the switching circuit 202 through the isolation circuit 205; the operating voltage input 206 is connected to the isolation circuit 205. In this embodiment, the voltage of the working voltage input terminal 206 may be 11V, the current may be 1.2A, and the standby voltage output by the power supply 201 in the standby state of the air conditioner may be 15V.
The isolation circuit 205 in this embodiment includes a first resistor R1, a second resistor R2, a third resistor R3, a first transistor Q1, and a photo coupler OC. The first transistor Q1 in this embodiment is an NPN transistor;
specifically, a first end of the first resistor R1 is connected to the operating voltage input terminal 206, and a second end of the first resistor R1 is connected to an anode of a light emitting diode in the optocoupler OC; the cathode of a light emitting diode in the photoelectric coupler OC is connected with the collector of a first triode Q1, the collector of the triode in the photoelectric coupler OC is connected with the switch circuit 202, and the emitter of the triode in the photoelectric coupler OC is grounded; the emitter of the first triode Q1 is grounded, the base of the first triode Q1 is connected with the control signal output end of the MCU204 through the second resistor R2, and the base of the first triode Q1 is grounded through the third resistor R3. The isolation circuit 205 in this embodiment is used for immunity.
The switch circuit 202 in this embodiment includes a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, and a second transistor Q2. The second transistor Q2 in this embodiment is a PNP transistor;
specifically, the fourth resistor R4 is connected in parallel with the fifth resistor R5, one end of the fourth resistor R4, which is connected in parallel with the fifth resistor R5, is connected to the collector of the transistor in the optocoupler OC of the isolation circuit 205, and the other end of the fourth resistor R4, which is connected in parallel with the fifth resistor R5, is connected to the base of the second transistor Q2 and the first end of the sixth resistor R6, respectively; a second end of the sixth resistor R6 is connected to an emitter of the second transistor Q2, and the emitter of the second transistor Q2 is further connected to the power supply 201; the collector of the second transistor Q2 is connected to the regulator circuit 207.
The voltage stabilizing circuit 207 in this embodiment includes a first capacitor C1, a second capacitor C2, an electrolytic capacitor E1, and a voltage stabilizer 2071.
Specifically, a power input end Vin of the voltage regulator 2071 is connected with a collector of a second triode Q2 in the switch circuit 202, a power output end Vout of the voltage regulator 2071 is connected with the motor drive board 203, and a ground end GND of the voltage regulator 2071 is grounded; a first end of the first capacitor C1 is connected to the power input Vin of the regulator 2071, and a second end of the first capacitor C1 is grounded; a first end of the second capacitor C2 is connected to the power output terminal Vout of the voltage regulator 2071, and a second end of the second capacitor C2 is grounded; the anode of the electrolytic capacitor E1 is connected to the power output terminal Vout of the voltage regulator 2071, and the cathode of the electrolytic capacitor E1 is grounded.
The operating principle of the standby power consumption control circuit of the air conditioner in this embodiment is specifically described as follows: when the air conditioner is in a standby state, the power supply 201 outputs a standby voltage of 15V, at this time, the control signal output end of the MCU204 outputs a low-level control signal to the base of the first triode Q1, so that the first triode Q1 is in a cut-off state, the photoelectric coupler OC is in a cut-off state, the cut-off of the photoelectric coupler OC also cuts off the second triode Q2, when the second triode Q2 is cut off, the standby voltage of 15V output by the power supply 201 cannot be input to the voltage regulator 2071, so that the voltage regulator 2071 does not work, so that the standby voltage of 15V output by the power supply 201 in the standby state of the air conditioner cannot be input to the motor drive board 203 of the air conditioner, thereby preventing the standby voltage of 15V from generating power consumption on the motor drive board 203, thereby reducing the standby power consumption of the air conditioner, and achieving the purpose of saving energy. This embodiment is when the air conditioner is in normal work, and the control signal output of MCU204 high level's control signal to the base of first triode Q1 for first triode Q1 switches on, thereby optoelectronic coupler OC switches on, and the switching on of optoelectronic coupler OC makes second triode Q2 also switch on, thereby makes the 15V voltage that power 201 exported can normally be inputed to motor drive board 203 through stabiliser 2071, makes the air conditioner normally work.
The utility model provides a stand-by power consumption control circuit of air conditioner, including power, switch circuit, motor drive board, be used for controlling switch circuit for the off-state when air conditioner standby state to the stand-by voltage input that the off-power exported when air conditioner standby state is to the MCU of motor drive board, be used for carrying out the buffer circuit of keeping apart MCU and switch circuit and be used for providing operating voltage's operating voltage input for buffer circuit. The switch circuit is connected between the power supply and the motor drive board, and the control signal output end of the MCU is connected with the control end of the switch circuit through the isolation circuit. The utility model discloses because when air conditioner standby state, be off-state through the corresponding control signal control switch circuit of MCU output for the standby voltage that the power exported when air conditioner standby state can not input the motor drive board to the air conditioner, thereby avoided this standby voltage to produce power consumption on the motor drive board, thereby reduced the standby power consumption of air conditioner, realized energy-conserving purpose.
The utility model discloses still provide an air conditioner, this air conditioner includes stand-by power consumption control circuit, this stand-by power consumption control circuit's circuit structure and circuit theory of operation and above embodiment the stand-by power consumption control circuit's of air conditioner circuit structure and circuit theory of operation the same, here is no longer repeated.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.
Claims (8)
1. A standby power consumption control circuit of an air conditioner is characterized by comprising a power supply, a switching circuit, a motor driving board, an MCU (microprogrammed control unit) for controlling the switching circuit to be in an off state when the air conditioner is in a standby state so as to disconnect the standby voltage output by the power supply from being input into the motor driving board, an isolation circuit for isolating the MCU from the switching circuit and a working voltage input end for providing working voltage for the isolation circuit; wherein,
the switch circuit is connected between the power supply and the motor driving plate; the control signal output end of the MCU is connected with the control end of the switch circuit through the isolation circuit; the working voltage input end is connected with the isolation circuit.
2. The standby power consumption control circuit of an air conditioner according to claim 1, further comprising a voltage stabilizing circuit connected between the switching circuit and the motor driving board.
3. The standby power consumption control circuit of an air conditioner according to claim 2, wherein the isolation circuit includes a first resistor, a second resistor, a third resistor, a first triode, and a photocoupler; wherein,
the first end of the first resistor is connected with the working voltage input end, and the second end of the first resistor is connected with the anode of a light emitting diode in the photoelectric coupler; the cathode of a light emitting diode in the photoelectric coupler is connected with the collector of the first triode, the collector of the triode in the photoelectric coupler is connected with the switching circuit, and the emitter of the triode in the photoelectric coupler is grounded; the emitting electrode of the first triode is grounded, the base electrode of the first triode is connected with the control signal output end of the MCU through the second resistor, and the base electrode of the first triode is grounded through the third resistor.
4. The standby power consumption control circuit of an air conditioner according to claim 3, wherein the switching circuit includes a fourth resistor, a fifth resistor, a sixth resistor, and a second transistor; wherein,
the fourth resistor is connected with the fifth resistor in parallel, one end of the fourth resistor is connected with a collector of a triode in the photoelectric coupler, and the other end of the fourth resistor is respectively connected with a base of the second triode and the first end of the sixth resistor; the second end of the sixth resistor is connected with the emitter of the second triode, and the emitter of the second triode is also connected with the power supply; and the collector of the second triode is connected with the voltage stabilizing circuit.
5. The standby power consumption control circuit of an air conditioner according to claim 4, wherein the voltage regulator circuit comprises a first capacitor, a second capacitor, an electrolytic capacitor and a voltage regulator; wherein,
the power supply input end of the voltage stabilizer is connected with the collector electrode of the second triode, the power supply output end of the voltage stabilizer is connected with the motor drive board, and the ground end of the voltage stabilizer is grounded; the first end of the first capacitor is connected with the power input end of the voltage stabilizer, and the second end of the first capacitor is grounded; the first end of the second capacitor is connected with the power output end of the voltage stabilizer, and the second end of the second capacitor is grounded; the anode of the electrolytic capacitor is connected with the power output end of the voltage stabilizer, and the cathode of the electrolytic capacitor is grounded.
6. The standby power consumption control circuit of claim 5, wherein the first transistor of the isolation circuit is an NPN transistor.
7. The standby power consumption control circuit of claim 6, wherein the second transistor of the switching circuit is a PNP transistor.
8. An air conditioner characterized by comprising the standby power consumption control circuit of the air conditioner of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420216932.5U CN203858468U (en) | 2014-04-29 | 2014-04-29 | Air conditioner standby power consumption control circuit and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420216932.5U CN203858468U (en) | 2014-04-29 | 2014-04-29 | Air conditioner standby power consumption control circuit and air conditioner |
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| Publication Number | Publication Date |
|---|---|
| CN203858468U true CN203858468U (en) | 2014-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420216932.5U Expired - Lifetime CN203858468U (en) | 2014-04-29 | 2014-04-29 | Air conditioner standby power consumption control circuit and air conditioner |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066364A (en) * | 2015-08-27 | 2015-11-18 | 广东美的制冷设备有限公司 | Air conditioner and standby control system thereof |
| CN110176883A (en) * | 2019-06-04 | 2019-08-27 | 珠海格力电器股份有限公司 | Direct current motor control circuit |
| CN112671273A (en) * | 2019-10-16 | 2021-04-16 | 美的威灵电机技术（上海）有限公司 | Switch circuit, motor control system and dust catcher |
| CN112701903A (en) * | 2021-01-22 | 2021-04-23 | Oppo广东移动通信有限公司 | Control circuit, switching power supply and electronic equipment |
| WO2021103100A1 (en) * | 2019-11-29 | 2021-06-03 | 苏州贝昂科技有限公司 | Control method for power consumption control apparatus |
-
2014
- 2014-04-29 CN CN201420216932.5U patent/CN203858468U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066364A (en) * | 2015-08-27 | 2015-11-18 | 广东美的制冷设备有限公司 | Air conditioner and standby control system thereof |
| CN105066364B (en) * | 2015-08-27 | 2017-12-12 | 广东美的制冷设备有限公司 | Air conditioner and its standby control system |
| CN110176883A (en) * | 2019-06-04 | 2019-08-27 | 珠海格力电器股份有限公司 | Direct current motor control circuit |
| CN112671273A (en) * | 2019-10-16 | 2021-04-16 | 美的威灵电机技术（上海）有限公司 | Switch circuit, motor control system and dust catcher |
| WO2021103100A1 (en) * | 2019-11-29 | 2021-06-03 | 苏州贝昂科技有限公司 | Control method for power consumption control apparatus |
| CN112701903A (en) * | 2021-01-22 | 2021-04-23 | Oppo广东移动通信有限公司 | Control circuit, switching power supply and electronic equipment |
| CN112701903B (en) * | 2021-01-22 | 2022-03-18 | Oppo广东移动通信有限公司 | Control circuit, switching power supply and electronic equipment |
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