Zero-power-consumption standby air conditioner

Abstract

The utility model relates to the technical field of air conditioner design, in particular to a zero-power-consumption standby air conditioner. The circuit comprises a signal detection circuit, a zero-power-consumption standby power supply circuit, a control circuit and an air conditioner starting circuit. The interior of the zero-power-consumption standby air conditioner is divided into three stages of circuits, a standby circuit is a signal detection circuit, a first-stage working circuit is a control circuit, a second-stage working circuit is an air conditioner starting circuit, only the standby circuit is started during zero-power-consumption standby, only the built-in low-power-consumption radar works at the moment, and when the low-power-consumption radar detects that a user is within a detection range, the low-power-consumption radar is started. The first-stage working circuit of the zero-power-consumption standby air conditioner is started, the infrared control circuit enters a working state, the second-stage working circuit is started or closed after a user instruction is received, control over an air conditioner switch is achieved, and after it is detected that a user leaves a detection range for more than a set time, only power supply of the signal detection circuit is kept, and other parts are powered off. On the premise that normal use of the air conditioner is guaranteed, standby electric energy loss is reduced, and energy conservation and emission reduction are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to power supply circuit design technical field, especially is zero power consumption standby air conditioner. BACKGROUND

[0002] In prior art, Chinese invention patent application (publication number CN111463067B) discloses a kind of air conditioner zero power consumption standby remote control socket circuit, including input and output, input includes fire line L1 and zero line N1, output includes fire line L2 and zero line N2;Fire line L1 is connected with capacitor C1 and resistance R1 respectively, capacitor C1 and resistance R1 are connected to diode bridge D after parallel connection, diode bridge D is connected with zero line N1, zero line N2, capacitor C2, voltage stabilizing diode VD1, resistance R2, the collector of triode Q1, resistance R3, relay J1;The other end of resistance R2 is connected to the base of triode Q1 and the collector of triode Q2, the emitter of triode Q1 is connected to the collector of triode Q4, the 1 foot of unidirectional thyristor VT1;The emitter of triode Q4 is connected to resistance R5, and the other end of resistance R5 is connected to resistance R4, the base of triode Q2, the other end of resistance R4 is grounded, and the emitter of triode Q2 is grounded;The other end of resistance R3 is connected to voltage stabilizing diode VD2, the pin 1 of infrared receiver IC1, the positive pole of diode D5;The 2 foot of infrared receiver IC1 is grounded, and the 3 foot is connected to the base of triode Q3 through resistance R6;The air conditioner zero power consumption standby remote control socket circuit provided by the application can realize the zero power consumption standby of air conditioner through infrared i remote control, save the purpose of electricity, and can protect the circuit in air conditioner from short circuit of internal electronic element due to long-term standby state, reduce fire hazard, and improve the safety of equipment.

[0003] International Electrotechnical Commission (IEC) 62301:2011 specifies methods for measuring the power consumption under standby and related low-power modes (off mode and network mode). These methods apply to electrical products whose voltage range is all or part of 100 V AC and 250 V AC (single-phase products) and 130 V AC (alternating current) and 480 V AC (other products). Clause 4.5 of IEC 62301:2011 classifies measurements less than 5 mW as zero power, which is now the basis for zero power marketing campaigns as a target for no-load standby power consumption in electronic devices and appliances. Products that meet this IEC requirement can obtain a zero power label, so achieving zero power in the sense of the label can greatly reduce the power consumption generated by daily appliances in standby mode. SUMMARY

[0004] The utility model discloses in order to overcome the lack of air conditioner of intelligent control and zero power consumption standby in prior art, based on a kind of combined low-power wireless detection, cooperate two-stage working voltage technology, proposed zero power consumption standby air conditioner.

[0005] In order to realize the above-mentioned purposes, the utility model provides the following technical schemes:

[0006] On the one hand, the utility model discloses a kind of zero power consumption standby air conditioner, including infrared control circuit, still including signal detection circuit, zero power consumption standby power supply circuit, control circuit, air conditioner starting circuit;

[0007] The control circuit is connected with the zero power consumption standby power supply circuit, and the signal detection circuit and the air conditioner starting circuit are connected;

[0008] The zero power consumption standby power supply circuit is connected with the signal detection circuit and the control circuit;

[0009] The signal detection circuit is connected with the zero power consumption standby power supply circuit and the control circuit;

[0010] The air conditioner starting circuit is connected with the control circuit and air conditioner power supply;

[0011] The signal detection circuit is standby circuit, receives standby voltage, and outputs power-on signal;

[0012] The control circuit is first-stage working circuit, receives first-stage working voltage, and outputs second-stage working voltage;

[0013] The air conditioner starting circuit is second-stage working circuit, receives second-stage working voltage, and controls the air conditioner power supply to be turned on;

[0014] The design of hierarchical circuit ensures that first-stage working voltage and second-stage working voltage can be supplied hierarchically, so that different circuit modules of the zero power consumption standby air conditioner can be operated individually. This design can better serve the differentiation between different modules as to whether power supply is needed during zero power consumption standby, and help to achieve a standby state that is almost powered off without unplugging the plug of the zero power consumption standby air conditioner, while ensuring that the air conditioner can be started at any time in this zero power consumption standby state.

[0015] Preferably, the control circuit further includes an infrared control circuit and a load detection circuit.

[0016] Further preferably, the infrared control circuit is composed of an infrared signal receiving circuit and an infrared signal starting circuit.

[0017] The infrared signal receiving circuit is connected with the zero-power standby power supply circuit and the infrared signal starting circuit;

[0018] The infrared signal starting circuit is connected with the infrared signal receiving circuit and the air conditioner starting circuit;

[0019] Further preferably, the load detection circuit comprises a switch K2, a bridge DB2, a transistor 2Q4, a voltage stabilizing diode 2D5, a voltage stabilizing diode 2D6, a diode 2D3, an electrolytic capacitor 2C17, an electrolytic capacitor 2C19, a capacitor 2C16, a capacitor 2C18, a capacitor 2C20, 2C21, a resistor 2R28, a resistor 2R29, a resistor 2R30, a resistor 2R31, a resistor 2R32.

[0020] The switch K2 is connected with the air conditioner power supply, and the air conditioner power supply is in a conductive state when the switch K2 is turned on, and the zero-power standby air conditioner is in a working state. The first port of the bridge DB2 is connected with the switch K2, the second port of the bridge DB2 is connected with the air conditioner power supply, the third port of the bridge DB2 is connected with the base and the collector of the transistor 2Q4, and the fourth port of the bridge DB2 is grounded. The base of the transistor 2Q4 is connected with the third port of the bridge DB2 through the resistor 2R31, the emitter of the transistor 2Q4 is grounded through the electrolytic capacitor 2C19, the electrolytic capacitor 2C19 is further connected with the capacitor 2C21 and the resistor 2R32 in parallel, the emitter of the transistor 2Q4 is connected with the signal detection circuit and the zero-power standby power supply circuit through a diode 2D3, the emitter and the collector of the transistor 2Q4 are further connected with the capacitor 2C20 in parallel, the base of the transistor 2Q4 is grounded through a voltage stabilizing diode 2D5, the voltage stabilizing diode 2D5 is connected in series with the resistor 2R30 between the third port of the bridge DB2 and the ground, the electrolytic capacitor 2C17 and the capacitor 2C18 are further connected in parallel between the third port of the bridge DB2 and the ground, the capacitor 2C15 is further connected in series between the first port of the bridge DB2 and the input end of the alternating current working voltage, the resistor 2R28 is further connected in parallel between the capacitor 2C15, and the resistor 2R29 is connected in series between the second port of the bridge DB2 and the output end of the alternating current working voltage.

[0021] Further preferably, the load detection circuit can realize that the power supply of the circuit is in a stable state when the zero-power standby air conditioner is in a working state, and the voltage of the air conditioner power supply is detected to determine whether it is in a working state, and the determination signal is fed back to the air conditioner starting circuit connected with the control circuit to ensure the continuous supply of the second-level working voltage, effectively avoiding the influence of whether the signal detection circuit sends the power-on signal in the working state.

[0022] Preferably, the infrared control circuit according to the received air conditioner off signal off the zero power consumption standby air conditioner, the process of realizing zero power consumption standby includes:

[0023] The signal detection circuit does not detect a user in the detection range within the set detection time, stops sending the power-on signal to the zero power consumption standby power supply circuit;

[0024] The zero power consumption standby power supply circuit does not receive the power-on signal, stops outputting the first level working voltage to the control circuit;

[0025] The control circuit does not receive the first level working voltage, stops outputting the second level working voltage to the starting circuit;

[0026] The starting circuit does not receive the second level working voltage, the air conditioner power supply is in the off state, and the zero power consumption standby air conditioner enters the standby state;

[0027] In this case, the zero power consumption standby air conditioner only the signal detection circuit is in working state;

[0028] According to the signal detection circuit, the hierarchical power supply of the entire zero power consumption standby air conditioner is realized, and when the user is not detected in the use range after exceeding the detection time, the power-on signal is stopped, the zero power consumption standby power supply circuit is controlled to disconnect the power supply to other circuits except the signal detection circuit, so that only the signal detection circuit is in working state in the standby state. The signal detection circuit judges whether the user is in the use range, realizes the effective judgment of the use of the zero power consumption standby air conditioner, and the hierarchical power supply design isolates the circuits in the standby state and the working state of the zero power consumption standby air conditioner, effectively controlling the power consumption of the circuit in the standby state.

[0029] Preferably, the signal detection circuit specifically adopts a radar detection mode, and specifically includes a radar detection sensor 2U3, a light emitting diode LED1, a diode 2D2, a resistor 2R24, and a resistor 2R25. The output end of the signal detection circuit is connected with the diode 2D2, the output end is grounded through the series connection of the resistor 2R24 and the light emitting diode LED1, and a resistor 2R25 is further connected between the output end and the ground end.

[0030] Further preferably, the signal detection circuit sets a detection time, and enters the zero power consumption standby state when no user is detected within the detection range, and the detection time is set to 0 to 60 minutes.

[0031] By providing a settable detection time, different needs of users can be flexibly met, and different needs of the same user for the detection time in different time periods and different scenes can be met.

[0032] Further preferably, the signal detection circuit adopts a low-power detection radar, and the low-power detection radar consumes less than 5mW in the working state.

[0033] By selecting the low-power detection radar consuming less than 5mW in the working state, and combining the hierarchical circuit design of the zero-power standby air conditioner, only the low-power radar in the zero-power standby air conditioner is in the working state in the standby state, so that the standby power of the zero-power standby air conditioner is less than 5mW, and according to the IEC 62301:2011, the measurement less than 5mW is classified as zero power, so that the zero-power standby of the existing standard can be realized.

[0034] Compared with the prior art, the utility model has the advantages of:

[0035] Compared with the prior art, the zero-power standby air conditioner of the utility model realizes the hierarchical circuit design, effectively ensures that the first-stage working voltage and the second-stage working voltage can be supplied hierarchically, so that different circuit modules of the zero-power standby air conditioner can be operated individually, the design can better serve the distinction between different modules whether power supply is needed in the zero-power standby, helps to realize the almost power-off standby state without unplugging the plug of the zero-power standby air conditioner, and ensures that the air conditioner can be started at any time in the zero-power standby state; meanwhile, the low-power radar selected in the utility model, combined with the hierarchical circuit design of the zero-power standby air conditioner, can realize that only the low-power radar in the zero-power standby air conditioner is in the working state in the standby state, so that the standby power of the zero-power standby air conditioner is less than 5mW, and the zero-power standby of the existing standard can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 is the principle diagram of the zero-power standby air conditioner in embodiment 1.

[0037] Figure 2 is the principle diagram of the control circuit and the air conditioner starting circuit in embodiment 3.

[0038] Figure 3 is the principle diagram of the zero-power standby power supply circuit and the signal detection circuit in embodiment 3. DETAILED DESCRIPTION

[0039] The utility model will be further described in detail in combination with the embodiments and specific implementation manners. However, this should not be understood as the range of the above-mentioned subject matter of the utility model being limited to the following embodiments, and any technology realized based on the content of the utility model belongs to the range of the utility model.

[0040] Embodiment 1

[0041] As shown in Figure 1 A zero-power standby air conditioner, comprising an infrared control circuit, a signal detection circuit, a zero-power standby power supply circuit, a control circuit and an air conditioner starting circuit;

[0042] The control circuit is connected with the zero-power standby power supply circuit, the signal detection circuit and the air conditioner starting circuit;

[0043] The zero-power standby power supply circuit is connected with the signal detection circuit and the control circuit;

[0044] The signal detection circuit is connected with the zero-power standby power supply circuit and the control circuit;

[0045] The air conditioner starting circuit is connected with the control circuit and an air conditioner power supply;

[0046] The signal detection circuit is a standby circuit, receiving standby voltage and outputting power-on signal;

[0047] The control circuit is a first-stage working circuit, receiving first-stage working voltage and outputting second-stage working voltage;

[0048] The air conditioner starting circuit is a second-stage working circuit, receiving second-stage working voltage and controlling the air conditioner power supply to be turned on;

[0049] Wherein, the circuit is designed in hierarchical levels, and the power supply and control are cut off to realize zero power consumption (meeting the standby power consumption of less than 5mW of the International Electrotechnical Commission standard), the signal detection circuit and the control circuit are powered in hierarchical levels, which guarantees that only low-power radar is powered in standby, and the control circuit is powered in working to guarantee the normal operation of intelligent voice control and infrared control, and the two-stage circuits flexibly cooperate to realize low-power operation in standby and intelligent control in working.

[0050] Wherein, the control circuit further comprises an infrared control circuit and a load detection circuit.

[0051] Wherein, the infrared control circuit comprises an infrared signal receiving circuit and an infrared signal starting circuit;

[0052] The infrared signal receiving circuit is connected with the zero-power standby power supply circuit and the infrared signal starting circuit;

[0053] The infrared signal starting circuit is connected with the infrared signal receiving circuit and the air conditioner starting circuit;

[0054] Wherein, the load detection circuit comprises a switch, a bridge stack and a triode.

[0055] The zero-power standby air conditioner, a process of operation of the zero-power air conditioner, comprises:

[0056] The signal detection circuit sends the power-on signal in a wireless detection mode;

[0057] The zero-power standby power supply circuit outputs the first-level working voltage to the control circuit according to the power-on signal, and the control circuit enters a working state;

[0058] The infrared control circuit in the control circuit outputs the second-level working voltage to the air conditioner starting circuit according to the received air conditioner starting signal;

[0059] The air conditioner starting circuit controls the air conditioner power supply to be turned on according to the second-level working voltage, and the zero-power standby air conditioner enters a working state.

[0060] The zero-power standby air conditioner, a process of operation of the zero-power air conditioner, comprises:

[0061] When the zero-power standby air conditioner is in a working state, the load detection circuit receives the voltage output by the air conditioner power supply;

[0062] The load detection circuit sends a power-on maintaining signal to the control circuit according to the voltage output by the air conditioner power supply;

[0063] The control circuit continuously sends the second-level working voltage to the air conditioner starting circuit according to the power-on maintaining signal;

[0064] The air conditioner starting circuit controls the air conditioner power supply to be continuously turned on according to the continuously received second-level working voltage, so that the zero-power standby air conditioner is continuously powered on in the working state.

[0065] When the infrared control circuit turns off the zero-power standby air conditioner according to the received air conditioner closing signal, a process of the zero-power air conditioner to realize zero-power standby comprises:

[0066] The signal detection circuit stops sending the power-on signal to the zero-power standby power supply circuit if no user in a detection range is detected within a set detection time;

[0067] The zero-power standby power supply circuit stops outputting the first-level working voltage to the control circuit if no power-on signal is received;

[0068] The control circuit stops outputting the second-level working voltage to the starting circuit if no first-level working voltage is received;

[0069] The starting circuit does not receive the second-stage working voltage, the air conditioner power supply is in an off state, and the zero-power-consumption standby air conditioner enters a standby state.

[0070] In this case, the zero-power-consumption standby air conditioner is only in a working state.

[0071] The detection time can be set to 0 to 60 minutes.

[0072] The signal detection circuit uses a low-power detection radar, and the low-power detection radar consumes less than 5mW in a working state.

[0073] The utility model discloses make improvement on the limitation problem faced in prior art, and design the structure of three-stage circuit, wherein the working circuit part is divided into first-stage working circuit and second-stage working circuit, adopts two-stage voltage cascade, and in the process of switching from standby state to working state, opens big voltage with small voltage, and at the same time, the air conditioner starting circuit and control circuit are cut off from the signal detection circuit, so that the signal detection circuit is in standby state when no one is in the use range, and only the signal detection circuit is running in standby state, so as to realize standby zero power consumption, after the signal detection circuit detects that the user enters the use range, the power supply circuit is sent with power-on signal, the control circuit is connected with first-stage working voltage, after receiving the starting signal of infrared control circuit, the air conditioner starting circuit is turned on to supply power to the air conditioner power supply. In this process, the signal detection circuit uses a low-power radar detection device to realize the triggering from standby state to working state, and the triggering condition is that when the user enters the use range is detected, the power-on signal is sent to the power supply circuit, so that the power supply circuit no longer only supplies power to the low-power radar, and at the same time, the infrared control circuit is supplied with power, so that it enters the working state, when the infrared control circuit sends the starting signal to the power supply circuit, the air conditioner starting circuit is connected with second-stage working voltage, at this moment, the intelligent control switch outputs high level, turns on the triode, the triode attracts the switch, the relay in the starter opens, and the air conditioner power supply is turned on, thus, the zero-power-consumption standby air conditioner realizes the state switching from zero-power-consumption standby to AC power supply starting working.

[0074] Further, the load detection circuit is used to detect whether the socket is in the load state and to feed back the signal. If the load detection circuit detects that the zero-power standby air conditioner is in the working state, the second working voltage is kept to be powered on, and the zero-power standby air conditioner is kept in the powered-on working state. The principle is that, as a low-power device, the trigger signal output by the signal detection circuit does not exist all the time. The trigger signal can only be maintained for a certain time (for example, from high level to low level). The disappearance of the trigger signal will result in two situations. The first situation is that, because the trigger signal disappears, the load detection circuit cannot continue to output the working inhibition signal to the signal detection circuit, so that the detection circuit regains the control ability of the power supply circuit. After the user leaves the use range for more than the detection time, the zero-power standby air conditioner will enter the standby state. The second situation is that, because the disappearance of the trigger signal will result in that the first working voltage is zero, the switch changes from the attraction state to the off state, which will result in that the second working voltage is zero, and the zero-power standby air conditioner will stop working. Therefore, if the load detection circuit detects that the air conditioner power supply is in the on state through the load detection signal, the load detection circuit outputs a high level to the transistor in the switch circuit, so that the transistor is in the on state, the attraction state of the switch is maintained, and the powered-on state of the second working voltage is maintained.

[0075] Embodiment 2

[0076] In a zero-power standby power supply control circuit, a signal detection circuit, a zero-power standby power supply circuit, a control circuit and an air conditioner starting circuit are included.

[0077] The signal detection circuit acquires the power-on signal of the power supply in a wireless detection mode. The signal detection circuit receives the standby voltage (the standby voltage is specifically 3.3V) output by the zero-power standby power supply circuit.

[0078] The zero-power standby power supply circuit starts the first working voltage (the first working voltage is specifically +5V) according to the power-on signal.

[0079] The control circuit outputs the second working voltage (the voltage is specifically +5V) according to the first working voltage, and the second working voltage is used to power the air conditioner starting circuit. The control circuit includes an infrared control circuit and a load detection circuit.

[0080] The load detection circuit is used to maintain the powered-on state of the second working voltage according to the working state of the zero-power standby air conditioner.

[0081] The signal detection circuit adopts a low-power radar. In the standby state, only the signal detection circuit is in the working state in the entire socket and the connected electrical appliances. The standby total power consumption is less than 5mW, which meets the zero-power standard of the International Electrotechnical Commission.

[0082] The optimized, because the signal detection circuit output power-on signal can not maintain a long time, there may be, power-on signal disappears, the control of the first stage and the second stage of the working voltage switch has not completed cascade opening, therefore, in the chip in the zero power standby power supply circuit, the chip is embedded with a delay program, the chip detects the power-on signal, the chip outputs high level starting transistor, outputs the first stage working voltage, and starts the delay program at the same time, so that the time of high level output is maintained T time length, even if the power-on signal disappears, the first stage working voltage still maintains the output state, so as to start the second stage working voltage through the switch circuit. Preferably, the T time length is 10 seconds, which is enough to ensure that the switch controlling the first stage and the second stage of the working voltage is turned on.

[0083] Further, in order to avoid the situation that the user passes by and causes misstart, the zero power standby air conditioner adopts the mechanism of double-stage circuit and double-layer start, and the signal detection circuit detects the user and only starts the first stage circuit to supply power for the second stage circuit, so that the control circuit enters the working state and enters the startable state, and only when the infrared control circuit receives the start command, the second stage working voltage is output, the air conditioner starting circuit enters the working state and supplies power for the connected electrical appliances; The infrared control circuit can realize the start or stop operation of the zero power standby air conditioner. The specific way of infrared control is that when starting, the infrared remote controller issues the start command of the electrical appliance, at this time, the infrared receiving circuit receives the signal to control the relay in the air conditioner starting circuit to open, and the zero power standby air conditioner enters the working state; When stopping, the infrared remote controller issues the stop command of the electrical appliance, the infrared receiving circuit receives the stop signal, and the relay of the air conditioner starting circuit is delayed to stop, and the zero power standby air conditioner enters the standby state. In the two working modes, the intelligent start of the air conditioner is realized, the strict classification of the stop command is realized, the demand of intelligent control and energy saving is well balanced, the waste of energy is avoided, and the power consumption is greatly increased.

[0084] Further, it is also necessary to consider that when the zero power standby air conditioner works, the first stage working voltage and the second stage working voltage must maintain the power-on state, and cannot be powered off. Once powered off, two problems may occur: the detection circuit interferes with the control; The AC power supply starting circuit loses the working power supply, the AC power supply stops supplying power, and the air conditioner stops working. In order to maintain the power-on state of the first stage working voltage and the second stage working voltage, a load detection circuit is also designed.

[0085] The load detection circuit comprises a switch, a bridge and a transistor.

[0086] The switch is connected with the air conditioner power supply and the first port of the bridge;

[0087] The first port of the bridge rectifier is connected to the switch, the second port of the bridge rectifier is connected to the zero-power standby power supply circuit, the third port of the bridge rectifier is connected to the base and collector of the transistor, and the fourth port of the bridge rectifier is grounded.

[0088] The load detection circuit detects the on / off state of the air conditioner power supply through the load detection signal. If the air conditioner power supply is on, the load detection circuit outputs a normally open switch holding signal to the air conditioner start circuit to control the air conditioner start circuit to be turned on, so as to maintain the power-on state of the second-stage working voltage.

[0089] To reduce standby power consumption, the standby voltage received by the signal detection circuit is lower than the first-stage operating voltage. For example, the operating voltage of the signal detection circuit is 3.3V, while the first-stage operating voltage is 5V.

[0090] To avoid repeated startup and shutdown by the user near the radar detection range, the detection circuit is configured to enter a zero-power standby state only after the detection time has elapsed since the user leaves. The detection time can be set to 0 to 60 minutes.

[0091] Finally, it should be noted that the embodiments described in the above description are merely preferred practices of the invention and should not be construed as limiting the scope of the present invention. Equivalent substitutions for the technical solutions described in the foregoing embodiments do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and all such substitutions should be covered within the scope of the claims and specification of the present invention.

[0092] Example 3

[0093] The zero-power standby power supply circuit used in the zero-power standby air conditioner specifically includes an infrared control circuit and a load detection circuit.

[0094] Among them, such as Figure 2 As shown, the load detection circuit includes switch K2, bridge rectifier BD2, transistor Q8, Zener diodes ZD3 and ZD4, diode D4, electrolytic capacitors EC7 and EC8, capacitors C15, C16, C17 and C32, and resistors R22, R29, R30, R31 and R32.

[0095] Switch K2 connects the input and output of the AC working voltage of the electrical equipment, and is used for controlling the conduction or closing of the AC working voltage of the electrical equipment; the first port of bridge stack BD2 is connected with the input of the AC working voltage, the second port of bridge stack BD2 is connected with the output of the AC working voltage, the third port of bridge stack BD2 is connected with the base and collector of triode Q8, and is used for converting the AC working voltage of the electrical equipment into DC voltage, and the fourth port of bridge stack BD2 is grounded; the base of triode Q8 is connected with the third port of bridge stack BD2 through resistor R22, the emitter of triode Q8 is grounded through electrolytic capacitor EC8, the both ends of electrolytic capacitor EC8 are also connected with capacitor C32 and resistor R32 in parallel, the emitter of triode Q8 is connected with the base of triode Q7 through diode D4; the emitter and collector of triode Q8 are also connected with capacitor C17 in parallel, the base of triode Q8 is connected with zener diode ZD4, zener diode ZD3 is connected in series with resistor R31 and then connected between the third port of bridge stack BD2 and the ground, electrolytic capacitor EC7 and capacitor C16 are also connected in parallel between the third port of bridge stack BD2 and the ground, capacitor C15 is also connected in series between the first port of bridge stack BD2 and the input of the AC working voltage, resistor R29 is also connected in parallel between capacitor C15, and resistor R30 is connected in series between the second port of bridge stack BD2 and the output of the AC working voltage.

[0096] As shown in Figure 3 the zero-power standby power supply circuit includes a first control chip, a second control chip, a rectifier circuit, a transformer, MOS tube Q1, MOS tube Q2, MOS tube Q3 and MOS tube Q4,

[0097] The rectifier circuit is connected with the primary side of the transformer, the secondary side of the transformer is used as a DC voltage output end, and is used for converting the input AC voltage into a DC voltage required by the signal detection circuit and also for outputting a first-level working voltage;

[0098] The first control chip outputs a PWM signal to MOS tube Q1 and MOS tube Q2, and the conduction and shutdown of MOS tube Q1 and MOS tube Q2 control the magnetic flux density of the primary side of the transformer, thereby reducing the output power of the primary side of the transformer; the second controller outputs a switching signal to MOS tube Q3 and MOS tube Q4, and the conduction and shutdown of MOS tube Q1 and MOS tube Q2 control the output and shutdown of the first-level working voltage of the secondary side of the transformer.

Claims

1. A zero standby power air conditioner comprising an infrared control circuit, characterized in that, Also include signal detection circuit, zero power standby power supply circuit, control circuit, air conditioning start circuit; The control circuit is connected with the zero power standby power supply circuit, the signal detection circuit and the air conditioning start circuit; The zero power standby power supply circuit is connected with the signal detection circuit and the control circuit; The signal detection circuit is connected with the zero power standby power supply circuit and the control circuit; The air conditioning start circuit is connected with the control circuit and air conditioning power supply; The signal detection circuit is standby circuit, access standby voltage, output power on signal; The control circuit is the first level working circuit, receives the first level working voltage, and outputs the second level working voltage; The air conditioning start circuit is the second level working circuit, receives the second level working voltage, and controls the air conditioning power supply to be turned on.

2. A zero standby power air conditioner according to claim 1, wherein The standby voltage is less than the first level working voltage, and the first level working voltage is equal to the second level working voltage.

3. The zero standby power air conditioner according to claim 1, wherein The control circuit further includes an infrared control circuit and a load detection circuit.

4. A zero standby power air conditioner as set forth in claim 3, characterized in that, The infrared control circuit is composed of an infrared signal receiving circuit and an infrared signal start circuit; The infrared signal receiving circuit is connected with the zero power standby power supply circuit and the infrared signal start circuit; The infrared signal start circuit is connected with the infrared signal receiving circuit and the air conditioning start circuit.

5. A zero standby power air conditioner as set forth in claim 3, characterized in that, The load detection circuit includes switch K2, bridge DB2, triode 2Q4, voltage stabilizing diode 2D5, voltage stabilizing diode 2D6, diode 2D3, electrolytic capacitor 2C17, electrolytic capacitor 2C19, capacitor 2C16, capacitor 2C18, capacitor 2C20, 2C21, resistor 2R28, resistor 2R29, resistor 2R30, resistor 2R31, resistor 2R32; The switch K2 is connected with the air conditioner power supply, and when the switch K2 is turned on, the air conditioner power supply is in an on state, and the zero-power standby air conditioner is in a working state. The first port of the bridge DB2 is connected with the switch K2, the second port of the bridge BD2 is connected with the air conditioner power supply, the third port of the bridge DB2 is connected with the base and collector of the triode 2Q4, and the fourth port of the bridge BD2 is grounded. The base of the triode 2Q4 is connected with the third port of the bridge DB2 through the resistor 2R31, the emitter of the triode 2Q4 is grounded through the electrolytic capacitor 2C19, and the electrolytic capacitor 2C19 is also connected with the capacitor 2C21 and the resistor 2R32 in parallel at both ends. The emitter of the triode 2Q4 is connected with the signal detection circuit and the zero-power standby power supply circuit through a diode 2D3. The emitter and the collector of the triode 2Q4 are also connected with the capacitor 2C20 in parallel. The base of the triode 2Q4 is grounded through a zener diode 2D5, and the zener diode 2D5 is connected in series with the resistor 2R30 between the third port of the bridge DB2 and the ground. The third port of the bridge DB2 and the ground are also connected with the electrolytic capacitor 2C17 and the capacitor 2C18 in parallel. The first port of the bridge DB2 and the input end of the alternating current working voltage are also connected with the capacitor 2C15 in series. The capacitor 2C15 is also connected with the resistor 2R28 in parallel. The second port of the bridge DB2 and the output end of the alternating current working voltage are connected with the resistor 2R29 in series.

6. A zero standby power air conditioner as set forth in claim 1, characterized by The signal detection circuit specifically adopts a radar detection mode, and specifically includes a radar detection sensor 2U3, a light emitting diode LED1, a diode 2D2, a resistor 2R24, and a resistor 2R25. The output end of the signal detection circuit is connected with the diode 2D2, and the output end is grounded through the series-connected resistor 2R24 and light emitting diode LED1. A resistor 2R25 is also connected between the output end and the ground end.

7. A zero standby power air conditioner as set forth in claim 6, characterized by The signal detection circuit sets a detection time, and enters a zero-power standby state when no user is detected within the detection range. Specifically, the detection time is set to 0 to 60 minutes.

8. A zero standby power air conditioner as set forth in claim 6, characterized by The signal detection circuit adopts a low-power detection radar, and the low-power detection radar consumes less than 5mW in a working state.

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