CN1766447A - Circuit device of indoor unit of air conditioner, circuit device of window type air conditioner, and method for starting air conditioner after sudden power-off - Google Patents

Abstract

The invention discloses air conditioner indoor set and window type air conditioner circuit device as well as circuit-breaking method to open a terminal, which consists of central control circuit and working state circuit-breaking memory circuit of two-direction electric connection with electric erasing-writing type storage, wherein the electric erasing-writing type storage air conditioner can set itself working state according to the data in advance when the power is broken suddenly then supplied again; the working mode refers to refrigerating mode or heating mode; the air conditioner judges whether enters into corresponding working mode according to the environmental temperature. The invention can be used in special occasion of environmental requirement.

Description

The circuit arrangement of indoor machine of air-conditioner and window air conditioner and outage starting-up method

Technical field

The present invention relates to a kind of circuit arrangement and the circuit arrangement of window air conditioner and the outage starting-up method of air-conditioner of indoor machine of air-conditioner.

Background technology

The application target of air-conditioner is that indoor temperature or humidity are remained in certain scope.Existing air-conditioner except that central air-conditioning can be divided into detachable air conditioner, package AC plant, multi-split air conditioner.Detachable air conditioner has ceiling mounting type, wall-hanging, console mode (being also referred to as cabinet type) etc.; Package AC plant is mainly the window formula.So-called split is meant that air-conditioner is divided into indoor set and off-premises station two parts; Usually said air conditioner room unit mainly refers to the indoor set of separated wall hanging type air conditioner and the indoor set of split cabinet air conditioner.Chinese patent application 00221147.5 discloses a kind of indoor set of cabinet air conditioner; noise was low when the indoor set of this cabinet air conditioner used, efficient is high, motor speed is stable, the blower fan low-speed performance is good; its weak point is that this air-conditioner is when having a power failure suddenly; air-conditioner is shut down, and just needs manually to open again and be provided with air-conditioner when recovering incoming call.And often run into such situation in actual use; have a power failure and air-conditioner is shut down as the occasion that needs constant temperature in historical relic holding room, stack room, microcomputer room etc. suddenly; when recovering incoming call, just need open and be provided with air-conditioner again by manual intervention; if when running into unwatched non-working time or festivals or holidays; then can be because of the bigger variation of environment temperature, the preservation of article in the place of need constant temperature is brought adverse influence.

Summary of the invention

The objective of the invention is, provide a kind of and have when outage quits work back recovery incoming call, air-conditioner can be opened automatically and work on and automatic air conditioner room unit and the circuit arrangement of window air conditioner and the outage starting-up method of corresponding air-conditioner of selecting duty according to environment temperature according to the duty that is provided with before the outage.

The technical scheme that realizes the circuit arrangement that a kind of air conditioner room unit is provided in the object of the invention is: this circuit arrangement has power circuit, central control circuit, input interface and communicating circuit, output interface circuit, circuit for controlling motor and fan electromotor; Central control circuit has single-chip microcomputer and the state control input circuit that links to each other with single-chip microcomputer; State control input circuit is a remote-control receiving circuit, perhaps is keying circuit, perhaps is remote-control receiving circuit and keying circuit; The output of power circuit connects the power end of each circuit; Input interface and communicating circuit are provided with can be with the two-way PORT COM that is electrically connected of off-premises station circuit arrangement, also be provided with indoor temperature signal input part and coil temperature signal input part; Input interface and communicating circuit, circuit for controlling motor all are electrically connected with the single-chip microcomputer of central control circuit is two-way; The output termination output interface circuit of the single-chip microcomputer of central control circuit, the power output end of output interface circuit are given a dinner for a visitor from afar and are put the power input of stepper motor and off-premises station; Circuit for controlling motor is electrically connected with fan electromotor is two-way; Be characterized in: this circuit arrangement also has the duty circuit-breaking memory circuit; The single-chip microcomputer of central control circuit is electrically connected with the duty circuit-breaking memory circuit is two-way, and the duty circuit-breaking memory circuit has electrically-erasable formula memory; During this circuit arrangement works, make the data of the duty control signal of electrically-erasable formula memory memory air-conditioner, and air-conditioner run into power supply have a power failure suddenly, when power supply send electricity again afterwards, air-conditioner can be provided with the duty of himself by the data of the duty control signal of the air-conditioner of the last memory of electrically-erasable formula memory before the outage; If when the related mode of operation of duty of air-conditioner was refrigeration mode or heating mode, then air-conditioner determined whether to enter corresponding work mode according to the temperature of its place environment automatically.

In the foregoing circuit device, electrically-erasable formula memory is serial EEPROM or parallel EEPROM; When electrically-erasable formula memory was serial EEPROM, serial EEPROM was I ²The serial EEPROM of the serial EEPROM of C bus, Microwire bus or the serial EEPROM of spi bus.

Technical scheme by the outage starting-up method of the detachable air conditioner that circuit arrangement carried out of above-mentioned air conditioner room unit has following steps: 1. descend the control signal input port of the single-chip microcomputer of central control circuit to be in the state of reception by the control signal of state control input circuit input in working order, the single-chip microcomputer of central control circuit to the data of the duty control signal that comprises mode of operation, temperature, wind speed, wind pendulum (being also referred to as pendulum wind) information that at every turn receives carry out data check and calculating, thereby obtain a verification and; 2. the single-chip microcomputer of central control circuit deposits this verification and the data that reach the above-mentioned state control signal that receives in the duty circuit-breaking memory circuit in a covered manner, and the data with the above-mentioned state control signal that receives deposit in the relevant register of single-chip microcomputer in a covered manner simultaneously; Thereby when the situation that runs into normal shutdown, the power end of the single-chip microcomputer of central control circuit is in high level state all the time, so the data of the duty control signal of air-conditioner can not lost before the shutdown of storing in the register of the single-chip microcomputer of central control circuit; When running into the situation that power supply has a power failure suddenly, the power end of the single-chip microcomputer of central control circuit becomes low level by high level, therefore the data of the duty control signal of the air-conditioner before the shutdown of storing in the register of the single-chip microcomputer of central control circuit lose, but preserve the preceding last duty control signal of outage in the duty circuit-breaking memory circuit; 3. running into the situation of normal shutdown, air-conditioner enters holding state, waits for that the user opens air-conditioner; After the user opened air-conditioner by state control input circuit, the data of the duty control signal of the air-conditioner of the single-chip microcomputer of central control circuit before according to the shutdown of storing in its register placed the corresponding work state with air-conditioner; If this moment, the user reset the duty of air-conditioner, then therefore the duty of air-conditioner will do corresponding the adjustment; 4. have a power failure suddenly running into power supply, when power supply send electricity again afterwards, the level of the power end of the single-chip microcomputer of central control circuit becomes low level by high level when having a power failure, then become high level during incoming call by low level, the single-chip microcomputer of incoming call back central control circuit carries out initialization to system, the single-chip microcomputer of central control circuit reads the data of the duty control signal of storing in the duty circuit-breaking memory circuit afterwards, carries out verification; If check errors, then the single-chip microcomputer of central control circuit carries out data initialization to the duty circuit-breaking memory circuit, makes it return to the preceding setting of dispatching from the factory, and air-conditioner enters holding state simultaneously, waits for that the user opens it by state control input circuit; If verification is correct, then the single-chip microcomputer of central control circuit places the corresponding work state by the data of the duty control signal that is read with air-conditioner.

The step of the outage starting-up method of above-mentioned air conditioner room unit carry out in 1. data check and calculating the time, the data of the duty control signal that comprises mode of operation, temperature, wind speed, wind pendulum information that the single-chip microcomputer of central control circuit will receive are deposited with respectively in its data check unit, afterwards the single-chip microcomputer of central control circuit to these data in verification unit carry out verification and calculating, therefore obtain a verification and; When step is carried out verification to the data of the duty control signal in the duty circuit-breaking memory circuit that reads in 4., the single-chip microcomputer of central control circuit earlier to the data of the duty control signal that reads carry out verification and calculating, and draw a verification and; The single-chip microcomputer of central control circuit with this verification and with outage before deposit the verification in the duty circuit-breaking memory circuit for the last time in and compare; If these two verifications and unequal, then check errors; If these two verifications and equal, then verification is correct.

After the 3. middle user of the step of the outage starting-up method of above-mentioned air conditioner room unit opens air-conditioner by state control input circuit, no matter be in the data of the duty control signal of the air-conditioner before the shutdown of storing in the register according to single-chip microcomputer air-conditioner is placed the corresponding work state, still be in the duty that the user resets, when if the related mode of operation of duty of this setting is refrigeration mode or heating mode, then also need to compare with the data of the temperature signal that from its register, reads in the data of the ambient temperature signal that temperature sensor port receives by single-chip microcomputer, or compare with the temperature data that is set by the user, determine whether to make air-conditioner to enter corresponding work mode according to different comparative results; If related mode of operation is a refrigeration mode, and when design temperature 〉=environment temperature, then the Single-chip Controlling air-conditioner of central control circuit is in holding state, and when design temperature＜environment temperature, then the Single-chip Controlling air-conditioner of central control circuit enters the refrigeration work pattern; If related mode of operation is a heating mode, and during design temperature≤environment temperature, then the Single-chip Controlling air-conditioner of central control circuit is in holding state, and when design temperature＞environment temperature, then the Single-chip Controlling air-conditioner of central control circuit enters and heats mode of operation; Step is correct in verification in 4., the single-chip microcomputer of central control circuit places air-conditioner under the situation of corresponding work state by the data of the duty control signal that is read from the duty circuit-breaking memory circuit, when if the related mode of operation of this duty is refrigeration mode or heating mode, then also need the data of the design temperature signal that will in the data of the ambient temperature signal that temperature sensor port receives and the memory function circuit that cuts off the power supply, read to compare, determine whether to make air-conditioner to enter corresponding work mode according to different comparative results by single-chip microcomputer; If the mode of operation of the setting of reading in outage memory function circuit is a refrigeration mode, and when design temperature 〉=environment temperature, the Single-chip Controlling air-conditioner of central control circuit is in holding state, and when design temperature＜environment temperature, then the Single-chip Controlling air-conditioner of central control circuit enters the refrigeration work pattern; If the mode of operation of the setting of reading in outage memory function circuit is a heating mode, and when design temperature≤environment temperature, the Single-chip Controlling air-conditioner of central control circuit is in holding state, and when design temperature＞environment temperature, then the Single-chip Controlling air-conditioner of central control circuit enters and heats mode of operation.

The technical scheme that realizes the circuit arrangement that a kind of window air conditioner is provided in the object of the invention is: this circuit arrangement has light current power circuit, central control circuit, reset circuit, state control input circuit, I/O expanded circuit, sample circuit, display circuit, circuit for controlling motor, fan electromotor and compressor; Central control circuit has single-chip microcomputer; State control input circuit has key circuit and remote-control receiving circuit; The light current power input of each circuit of output termination of light current power circuit; The output of the output of reset circuit, the output of key circuit, sample circuit, the output of remote-control receiving circuit all link to each other with the single-chip microcomputer of central control circuit; The serial output terminal of the single-chip microcomputer of central control circuit connects the I/O port expansion circuit, and the parallel output terminal of I/O port expansion circuit connects display circuit; Circuit for controlling motor is electrically connected with the single-chip microcomputer of central control circuit is two-way; The power end and the power of compressor end of the corresponding port wind-receiving fan motor of the power output end of circuit for controlling motor; Be characterized in: this circuit arrangement also has the duty circuit-breaking memory circuit, and the single-chip microcomputer of central control circuit is electrically connected with the duty circuit-breaking memory circuit is two-way, and the duty circuit-breaking memory circuit has electrically-erasable formula memory; Can make the data of the duty control signal of electrically-erasable formula memory memory air-conditioner during this circuit arrangement works, and air-conditioner run into power supply have a power failure suddenly, when power supply send electricity again afterwards, air-conditioner can be provided with the duty of himself by the data of the duty control signal of the air-conditioner of the last memory of electrically-erasable formula memory before the outage; If when the related mode of operation of duty of air-conditioner was refrigeration mode or heating mode, then air-conditioner determined whether to enter corresponding work mode according to the temperature of its place environment automatically.

Electrically-erasable formula memory in the circuit arrangement of above-mentioned window air conditioner is serial EEPROM or parallel EEPROM; When electrically-erasable formula memory was serial EEPROM, serial EEPROM was I ²The serial EEPROM of the serial EEPROM of C bus, Microwire bus or the serial EEPROM of spi bus.

Technical scheme by the outage starting-up method of the window air conditioner that circuit arrangement carried out of above-mentioned window air conditioner has following steps: 1. descend the control signal input port of the single-chip microcomputer of central control circuit to be in the state of reception by the control signal of state control input circuit input in working order, the single-chip microcomputer of central control circuit to the data of the duty control signal that comprises mode of operation, temperature, wind speed, wind pendulum information that at every turn receives carry out data check and calculating, thereby obtain a verification and; 2. the single-chip microcomputer of central control circuit deposits this verification and the data that reach the above-mentioned state control signal that receives in the duty circuit-breaking memory circuit in a covered manner, and the data with the above-mentioned state control signal that receives deposit in the relevant register of single-chip microcomputer in a covered manner simultaneously; Thereby when the situation that runs into normal shutdown, the power end of the single-chip microcomputer of central control circuit is in high level state all the time, so the data of the duty control signal of air-conditioner can not lost before the shutdown of storing in the register of the single-chip microcomputer of central control circuit; When running into the situation that power supply has a power failure suddenly, the power end of the single-chip microcomputer of central control circuit becomes low level by high level, therefore the data of the duty control signal of the air-conditioner before the shutdown of storing in the register of the single-chip microcomputer of central control circuit lose, but preserve the preceding last duty control signal of outage in the duty circuit-breaking memory circuit; 3. running into the situation of normal shutdown, air-conditioner enters holding state, waits for that the user opens air-conditioner; After the user opened air-conditioner by state control input circuit, the data of the duty control signal of the air-conditioner of the single-chip microcomputer of central control circuit before according to the shutdown of storing in its register placed the corresponding work state with air-conditioner; If the user resets the duty of air-conditioner, then therefore the duty of air-conditioner will do corresponding the adjustment; 4. have a power failure suddenly running into power supply, when power supply send electricity again afterwards, the power end of the single-chip microcomputer of central control circuit becomes high level by low level, the single-chip microcomputer of incoming call back central control circuit carries out initialization to system, the single-chip microcomputer of central control circuit reads the data of the duty control signal of storing in the duty circuit-breaking memory circuit afterwards, carries out verification; If check errors, then the single-chip microcomputer of central control circuit carries out data initialization to the duty circuit-breaking memory circuit, makes it return to the preceding setting of dispatching from the factory, and air-conditioner enters holding state simultaneously, waits for that the user opens it by state control input circuit; If verification is correct, then the single-chip microcomputer of central control circuit places the corresponding work state by the data of the duty control signal that is read with air-conditioner.

The step of the outage starting-up method of above-mentioned window air conditioner carry out in 1. data check and calculating the time, the data of the duty control signal that comprises mode of operation, temperature, wind speed, wind pendulum information that the single-chip microcomputer of central control circuit will receive are deposited with respectively in its data check unit, afterwards the single-chip microcomputer of central control circuit to these data in verification unit carry out verification and calculating, therefore obtain a verification and; When the data that step reads the duty control signal in the duty circuit-breaking memory circuit in are 4. carried out verification, the single-chip microcomputer of central control circuit earlier to the data of the duty control signal that reads carry out verification and calculating, and draw a verification and; The single-chip microcomputer of central control circuit with this verification and with outage before deposit the verification in the duty circuit-breaking memory circuit for the last time in and compare; If these two verifications and unequal, then check errors; If these two verifications and equal, then verification is correct.

After the 3. middle user of the step of the outage starting-up method of above-mentioned window air conditioner opens air-conditioner by state control input circuit, no matter be in the data of the duty control signal of the air-conditioner before the shutdown of storing in the register according to single-chip microcomputer air-conditioner is placed the corresponding work state, still be in the duty that the user resets, when if the related mode of operation of duty of this setting is refrigeration mode, then also need to compare with the data of the temperature signal that from its register, reads in the data of the ambient temperature signal that temperature sensor port receives by single-chip microcomputer, or compare with the temperature data that is set by the user, determine whether to make air-conditioner to enter the refrigeration work pattern according to different comparative results; When design temperature 〉=environment temperature, then the Single-chip Controlling air-conditioner of central control circuit is in holding state, and when design temperature＜environment temperature, then the Single-chip Controlling air-conditioner of central control circuit enters the refrigeration work pattern; Step is correct in verification in 4., the single-chip microcomputer of central control circuit places air-conditioner under the situation of corresponding work state by the data of the duty control signal that is read from the duty circuit-breaking memory circuit, when if the related mode of operation of this duty is refrigeration mode, then also need the data of the design temperature signal that will in the data of the ambient temperature signal that temperature sensor port receives and the memory function circuit that cuts off the power supply, read to compare, determine whether to make air-conditioner to enter the refrigeration work pattern according to different comparative results by single-chip microcomputer; When design temperature 〉=environment temperature, the Single-chip Controlling air-conditioner of central control circuit is in holding state, and when design temperature＜environment temperature, then the Single-chip Controlling air-conditioner of central control circuit enters the refrigeration work pattern.

Electrically-erasable formula memory in the circuit arrangement of air conditioner room unit of the present invention and the circuit arrangement of window air conditioner adopts serial EEPROM or parallel EEPROM; When electrically-erasable formula memory is serial EEPROM, then pass through I as the single-chip microcomputer of main device ²C bus, Microwire bus or spi bus link to each other with the serial EEPROM of conduct from device.I ²C bus (INTER INTEGRATED CIRCUIT BUS), i.e. " internal integrate circuit bus ", single-chip microcomputer passes through I ²When the C bus is carried out transfer of data, only adopt two lines of clock line SCL and data wire SDA.When clock line SCL was high level, data wire SDA jumped to low level from high level, then for beginning the signal of transfer of data; When clock line SCL was high level, data wire SDA was from the low transition to the high level, then for stopping the signal of transfer of data.Beginning and end signal are all produced by main device, at main device between commencing signal and the end signal with from carrying out the transmission of data between the device.After main device produced commencing signal, first byte data of sending was used for selecting from address of devices, and wherein preceding 7 is address code, and the 8th is the direction position; Address code is used for selecting from device, and the direction position is used to determine to write or read; When the direction position is that " 0 " expression sends, promptly main device data write chosen from device, data will be read from device from selected for " 1 " expression main device in the direction position.The Microwire bus adopts clock CLK, data input DI, three lines of data output DO to carry out transfer of data.CS and DI are first rising edge of CLK behind the high level, are defined as START.If the DI end is imported the combination of satisfying a kind of required command code, address and data bit in 7 kinds of mode of operations after following the START condition closely, instruction will be performed.Read operation: when CS was high level, chip was after receiving read command and address, from the content (high-order preceding) of DO end serial output designating unit.Write operation: when CS is high level, after chip is received write order and address, receive 16 of serial inputs or 8 bit data (high-order) preceding from the DI termination.SPI (Serial Peripheral Interface) bus, i.e. " serial peripheral equipment interface bus " carries out transfer of data with clock SCK, data input SI, three lines of data output SO.The data I/O of parallel EEPROM is then undertaken by parallel bus.Electrically-erasable formula memory EEPROM is when writing information, and adding a high voltage on the pin of appointment can wipe and write, and its speed of wiping is exceedingly fast.

The good effect that the present invention has: (1) has a power failure suddenly running into power supply, when power supply send electricity again later on, the duty before the outage can be opened and return to air-conditioner automatically, greatly facilitates some special occasions as the use to air-conditioner in historical relic holding room, stack room, microcomputer room etc.(2) the read-only storage EEPROM of the electrically-erasable that uses in the duty circuit-breaking memory circuit have that price is low, volume is little, interface is simple, data preserve reliable, can onlinely rewrite, low in energy consumption, characteristics such as speed is fast, EEPROM is long memory time simultaneously, if cut off the power supply several years, still can be when recovering incoming call by the operation of the state of a control before the outage; Good reliability is not subject to extraneous interference; It does not need battery or capacitor discharge to keep work, has reduced circuit cost.(3) principle of the present invention also can be used on the air-conditioner of other type.

Description of drawings

Fig. 1 is the circuit arrangement block diagram of air conditioner room unit of the present invention.

Fig. 2 has a power failure suddenly for air-conditioner runs into power supply, the flow chart the when single-chip microcomputer of central control circuit was worked when later power supply sent electricity again.

Fig. 3 is the circuit theory diagrams of the duty circuit-breaking memory circuit among Fig. 1, and wherein the EEPROM that is adopted is the serial EEPROM of Microwire bus.

Fig. 4 is a part, input interface and communicating circuit, the output interface circuit of the state control input circuit of the single-chip microcomputer of the central control circuit among Fig. 1 and accessory circuit, central control circuit, the electrical schematic diagram of duty circuit-breaking memory circuit, and the EEPROM that duty circuit-breaking memory circuit is wherein adopted is the serial EEPROM of Microwire bus.The each several part circuit of Fig. 4 is arranged on the same main control board (abbreviation master control borad).

Fig. 5 is a part, input interface and communicating circuit, the output interface circuit of the state control input circuit of the single-chip microcomputer of the central control circuit among Fig. 1 and accessory circuit, central control circuit, the electrical schematic diagram of duty circuit-breaking memory circuit 16, and the EEPROM that duty circuit-breaking memory circuit is wherein adopted is I ²The serial EEPROM of C bus.The each several part circuit of Fig. 5 is arranged on the same main control board (abbreviation master control borad).

Fig. 6 is the circuit arrangement block diagram of window air conditioner of the present invention.

Fig. 7 is central control circuit, reset circuit, key circuit, I/O expanded circuit, duty circuit-breaking memory circuit, the remote-control receiving circuit among Fig. 6, the electrical schematic diagram of display circuit, and the EEPROM that duty circuit-breaking memory circuit is wherein adopted is I ²The serial EEPROM of C bus.

Fig. 8 is light current power circuit, the sample circuit among Fig. 6, the electrical schematic diagram of circuit for controlling motor.

Fig. 9 is central control circuit, reset circuit, key circuit, I/O expanded circuit, duty circuit-breaking memory circuit, the remote-control receiving circuit among Fig. 6, the electrical schematic diagram of display circuit, and the EEPROM that duty circuit-breaking memory circuit is wherein adopted is the serial EEPROM of Microwire bus.

Figure 10 is the electrical schematic diagram of the power circuit among Fig. 1.

Figure 11 is the electrical schematic diagram of the circuit for controlling motor among Fig. 1.

The specific embodiment

(embodiment 1)

See Fig. 1, the circuit arrangement of the air conditioner room unit of present embodiment has power circuit 11, central control circuit 12, input interface and communicating circuit 13, output interface circuit 14, circuit for controlling motor 15, duty circuit-breaking memory circuit 16 and fan electromotor 17.Central control circuit 12 has single-chip microcomputer U1 and the state control input circuit that links to each other with single-chip microcomputer U1; State control input circuit is remote-control receiving circuit and keying circuit; Duty circuit-breaking memory circuit 16 has electrically-erasable formula memory; The output of power circuit 11 connects the power end of each circuit; Input interface and communicating circuit 13 are provided with can be with the two-way PORT COM that is electrically connected of off-premises station circuit arrangement, also be provided with indoor temperature signal input part and coil temperature signal input part.Input interface and communicating circuit 13, circuit for controlling motor 15 all with two-way electrical connection of single-chip microcomputer U1 of central control circuit 12; The output termination output interface circuit 14 of the single-chip microcomputer U1 of central control circuit 12, the power output end of output interface circuit 14 are given a dinner for a visitor from afar and are put the power input of stepper motor and off-premises station; The single-chip microcomputer U1 of central control circuit 12 and duty circuit-breaking memory circuit 16 two-way electrical connections; Circuit for controlling motor 15 and fan electromotor 17 two-way electrical connections.During this circuit arrangement works, make the data of the duty control signal of electrically-erasable formula memory memory air-conditioner, and air-conditioner run into power supply have a power failure suddenly, when power supply send electricity again afterwards, air-conditioner can be provided with the duty of himself by the data of the duty control signal of the air-conditioner of the last memory of electrically-erasable formula memory before the outage, if when the related mode of operation of this duty is refrigeration mode or heating mode, then determine whether to enter corresponding work mode according to environment temperature automatically.

See Fig. 3 and Fig. 4, label is that the electrically-erasable formula memory EEPROM of IC104 is the 93C46 serial EEPROM of Microwire bus.Label is that the model of the single-chip microprocessor MCU of U1 is M38503M3.The circuit of air-conditioner duty circuit-breaking memory circuit 16 is constructed as follows: the VCC that the 5V power supply connects IC104 holds 8 pin, and the VCC that anti-interference capacitor C105 is connected in IC104 holds 8 pin and GND to hold between 5 pin.The CS that resistance R 118 is connected in 5V power supply and IC104 holds between 1 pin.5 pin of IC104,6 pin and 7 pin ground connection.The Microwire bus adopts clock SK, data input DI, three lines of data output DO to carry out transfer of data.U1 holds 1 pin to link to each other by its 23 pin with the sheet choosing end CS of IC104, U1 holds 2 pin to link to each other by its 24 pin with the synchronizing clock signals input SK of IC104, thereby to IC104 input synchronizing clock signals, U1 holds 4 pin to link to each other with the serial data input DI end of IC104 and the serial data output DO of IC104 by its 25 pin simultaneously.It is that data structure is selected input that the ORG of IC104 holds 6 pin, and this ORG of present embodiment holds 6 pin to connect low level, and selects * 8 structures.IC104 holds 1 pin and DI to hold 3 pin to be first rising edge of receiving in the SK termination behind the high level its CS and is defined as START (beginning).If DI holds the input of 3 pin to satisfy the combination of a kind of required command code, address and data bit in 7 kinds of mode of operations after following the START condition closely, instruction will be performed.Read operation: when CS was high level, IC104 held the content (high-order preceding) of 4 pin serials output designating unit from DO after receiving read command and address.Write operation: when CS is high level, after IC104 receives write order and address, holds 3 pin to receive serial from DI and import 8 bit data (high-order) preceding.

See Fig. 4, the circuit of input interface and communicating circuit 13 constitutes as follows with function: 220V exchanges the single-phase half-wave rectifier circuit of live wire L (BRN) by being made up of resistance R 34, R35, R36, R53, diode VD5, voltage-stabiliser tube ZD1, capacitor C 74, C18 and ground wire N (BLU) of inlet wire, obtain the DC voltage about 24V, as the working power of the electric current loop of forming by the photoelectrical coupler on photoelectrical coupler D22, D21 and the off-premises station circuit board.17 pin of resistance R 55, R56, R65, triode V1, capacitor C 44 and single-chip microcomputer U1 are formed the communication output driving circuit in addition, 6 pin of resistance R 18, capacitor C 49 and single-chip microcomputer U1, form communication input receiving circuit, diode VD1, VD20, resistance R 52, R38, capacitor C 26, C2 form electric current loop current limliting and anti-jamming circuit, and the forceful electric power communication links to each other with off-premises station with S (ORG) by L (BRN).

By third gear switch SW, the running status initialization circuit that short-circuit plug XS8 and pull down resistor R6, R7, R3, R23 form is carried running status to the P3.2 of single-chip microcomputer U1 (40 pin), P3.3 (39 pin), P3.4 (38 pin), P0.4 (33 pin) port.When if fault is arranged, toggle switch SW on the indoor master control borad is pushed the position, pass, behind the delay confirmation of certain hour, the position of former displays temperature can show the code of fault on VFD (fluorescent display tube) panel.

Reset circuit adopts the PCT5911 integrated package, and 3 pin of PCT5911 link to each other with resetting pin 18 pin of pull-up resistor R54, filter capacitor C34 and single-chip microcomputer U1.When PCT5911 resetted, the output voltage of 3 pin was 4.5V.

The temperature T 2 of indoor environment temperature T1 and indoor heat converter is read by A/D mouth ANO (42 pin), the AN1 (41 pin) of single-chip microcomputer U1, and resistance R 60, R96, capacitor C 41 are formed the indoor environment temperature sample circuit; Resistance R 59, R97, capacitor C 39 are formed the temperature sampling circuit of indoor heat converter.Plug-in unit XS2 and XS6 are connected on the master control borad.

Capacitor C 43, C45, C46, C48 are anti-interference capacitor, and resistance R 66, R67 are pull-up resistor, and they link to each other with 5,10,11,12 pin of M38503M3, form communicating circuit.7～10 pin through XS1 link to each other with the VFD panel respectively.The power supply of fluorescent display tube VFD panel is provided by Switching Power Supply.Wherein F1, F2 are that 4.2V exchanges for exchanging this machine of 3～5V (by the display screen decision of fluorescent display tube VFD panel), and F1, F2 are through 2, the 3 pin output of XS1.-21V direct current is the driving power of VFD, and through the output of 1 pin of XS1,5V connects 4 pin of XS1,, the 5 pin ground connection of XS1.

The remote control of central control circuit 12 receives INTO interruptive port (7 pin) reception of a remote signal that transmits by single-chip microcomputer U1, R12 and C8 form the circuit that accepts filter, when received signal is correct, single-chip microcomputer U1 output signal makes buzzer HA1 send out short sound, and buzzer also can be sent out short sound when powering on.Remote signal inserts by the 6th port of connector XS1.

Still see Fig. 4, about the circuit of output interface circuit among Fig. 1 14 constitute and function as follows: by 34～37 pin output left and right sides wind pendulum Stepping Motor Control pulse of single-chip microcomputer U1, through model be the drive circuit D2 of ULN2003 anti-phase amplify the back by 2～5 pin output of connector XS9, be used to drive and control the stepper motor that left and right sides wind is put.Is the anti-phase amplification rear drive of drive circuit D3 of ULN2003 relay K 1 work that powers on by the 30 pin output signals of single-chip microcomputer U1 through model.When relay tip K1-1 connected, then the power supply of the live wire L (BRN) of 220V alternating current was powered to off-premises station by K1-1 and L1 (BRN) plug wire terminal, and constituted current supply circuit through fuse FU to ground wire N by N1.By the output signal of the P0.6 port (31 pin) of single-chip microcomputer U1, through 2 work of the anti-phase amplification rear drive of D3 anion relay K, signal is exported by the XS29 connector.Put the Stepping Motor Control pulse by the last leeward that P1.0～P1.3 port (29～26 pin of single-chip microcomputer U1) of single-chip microcomputer U1 is exported, export, be used to drive leeward pendulum stepper motor by 2～5 pin of XS7 after the anti-phase amplification of D3,1 pin of D3 is a 12V direct current output pin.

Buzzer drive circuit is by port CNTR1 (8 pin), the resistance R 14 of single-chip microcomputer U1,, R43, triode V2 and buzzer HA1 form.

Still see Fig. 4, the P1.7 port of single-chip microcomputer U1 (22 pin) output fan electromotor enabling signal.The PWM output port of single-chip microcomputer U1 (4 pin) output PWM rotating speed control command.CNTR0 is the tach signal of external interrupt input port (9 pin) the input fan electromotor of single-chip microcomputer U1, and single-chip microcomputer U1 changes the PWM pulsewidth according to the rotating speed of input with the difference of setting rotating speed, thus the rotating speed of control fan electromotor.

See Figure 10, during the work of this indoor set, attaching plug is connected the alternating current 220V civil power, and power circuit 11 is powered on by live wire L (BRN) and the ground wire N (BLU) that exchanges inlet wire.Power circuit 11 by VCC1～VCC4 end output+5V ,+12V ,+power supply of the 15V and-21V power end of relevant circuit extremely.Power circuit 11 by Udc end to electronic commutation circuit 15-7+end output+300V.Power circuit 11 is by F1 and F2 end output 4.2V alternating current.

See Figure 11, when air-conditioner enters the mode of operation of freezing or heating, the input of the single-chip microcomputer U1 of central control circuit 12 from 22 pin output fan electromotor enabling signal to the starting or stopping control circuit 15-1 of circuit for controlling motor 15, the light of forming by resistance R 31 and photoelectrical coupler D24 is every circuit, output control signals to 7 pin of the integrated circuit D4 of MC33035 by the emitter stage of D24 output triode, D4 is started working.Meanwhile, the input of single-chip microcomputer U1 from 4 pin PWM ports output PWM rotating speed control command to D/A converting circuit 15-2, by triode V3 amplify, photoelectrical coupler D25 isolate transmit and the processing of the element circuit that resistance R 40, R41, R10, R13, capacitor C 21, triode V6 are formed after be transformed into the rotational speed setup analog signal, transport to 11 pin as the D4 of the rotational speed setup signal input part of fan electromotor control integrated circuit 15-5.After D4 handles, to model high voltage drive integrated circuit D9, D10, the D11 output switching signal of IR2103 by 21 pin and 2 pin, 20 pin and 1 pin, 19 pin and 24 pin of its switching signal output.

D4 is the special integrated circuit of fan electromotor, and it accepts the command signal that single-chip microcomputer U1 comes, and according to detected three position signallings of motor internal Hall element (through the XS3 input, and by shaping circuit 15-3 shaping), decision is when the first six road output switch control signal.This six tunnel output signal promotes the electronic commutation circuit 15-7 that thick film mixes through the amplification of D9, D10, three high pressure integrated drive electronics of D11 IR2103.Directly fan motor 17 work (receiving on the XS4) of the output of electronic commutation circuit 15-7.The concrete course of work is: 6 pin of high voltage drive integrated circuit D9～D11 are the ports that link to each other with phase line U, V, W, be provided with six MOSFET power tubes among the electronic commutation circuit 15-7, according to switch controlling signal, go up among pipe G1, G3, the G5 for 3 a conducting can only be arranged, 3 also can only have a conducting among pipe G2, G4, the G6 down, that is to say can only being and going up pipe and and manage down of conducting simultaneously.When high voltage drive integrated circuit (for example D9 and D10) when receiving the order of conducting G1 and G4, then the 7 pin output of D9 than 6 pin voltage values (also being the magnitude of voltage of U) want high magnitude of voltage to the G1 end of electronic commutation circuit 15-7, the 5 pin output Continuity signal of D10 to the G4 end of electronic commutation circuit 15-7, make the U of power tube G1, G4 and motor, winding conducting between the V.By the sequential turn-on of six power tubes, the threephase stator winding that makes DC voltage about 300V be added to motor 17 gets on, and makes motor obtain to change distance.

Tachometric survey interface circuit 15-4 is made up of resistance R 16, R28, R25, triode V4, capacitor C 14, photoelectrical coupler D26.Transport to a end by the dynamic position signal of the inner detected rotors of Hall element of fan electromotor 17 as the resistance R 25 of the input of tachometric survey interface circuit 15-4, amplify through triode V4, after D26 coupling and capacitor C 14 and resistance R 16 are handled, transport to 9 pin as the external interrupt input port CNTR0 of single-chip microcomputer U1, the tach signal of input fan electromotor, single-chip microcomputer U1 compares with the corresponding signal numerical value of setting rotating speed according to the tach signal of input, difference decision by gained keeps or change PWM pulsewidth, thus the rotating speed of control fan electromotor.

Circuit for controlling motor 15 also is provided with current sampling circuit 15-8; the electric current that obtains when sampling from electric current outflow end (-) end of electronic commutation circuit 15-7 is transported to 9 pin of D4 after the processing of current sampling circuit 15-8; when D4 judges greater than the numerical value set; then turn-off the output of D4, be not damaged with devices such as protection fan electromotors.

See Fig. 4, after the circuit arrangement of above-mentioned air conditioner room unit was used for detachable air conditioner, its outage starting-up method had following steps:

1. descend the control signal input port of the single-chip microcomputer U1 of central control circuit 12 to be in the state of reception in working order by the control signal of state control input circuit input, the single-chip microcomputer U1 of central control circuit 12 to the data of the duty control signal that comprises mode of operation, temperature, wind speed, wind pendulum information that at every turn receives carry out data check and calculating, thereby obtain a verification and.Carry out data check and calculating the time, the data of the duty control signal that comprises mode of operation, temperature, wind speed, wind pendulum information that the single-chip microcomputer U1 of central control circuit will receive are deposited with respectively in its data check unit, afterwards the single-chip microcomputer U1 of central control circuit to these data in verification unit carry out verification and calculating, therefore obtain a verification and.

2. the single-chip microcomputer U1 of central control circuit 12 deposits this verification and the data that reach the above-mentioned state control signal that receives in the duty circuit-breaking memory circuit 16 in a covered manner, and the data with the above-mentioned state control signal that receives deposit in the relevant register of single-chip microcomputer U1 in a covered manner simultaneously; Thereby when the situation that runs into normal shutdown, the single-chip microcomputer U1 of central control circuit 12 still be in electricity condition, thereby 1 pin of its power end and 2 pin are in high level state all the time, so the data of the duty control signal of air-conditioner can not lost before the shutdown of storing in the register of the single-chip microcomputer U1 of central control circuit 12; When running into the situation that power supply has a power failure suddenly, the single-chip microcomputer U1 of central control circuit 12 then is in power failure state, 1 pin and 2 pin of its power end become low level by high level, and therefore the data of the duty control signal of the air-conditioner before the shutdown of storing in the register of the single-chip microcomputer U1 of central control circuit 12 lose; But preserve the preceding last duty control signal of outage in the chip IC 104 of duty circuit-breaking memory circuit 16.

3. running into the situation of normal shutdown, air-conditioner enters holding state, waits for that the user opens air-conditioner; After the user opened air-conditioner by remote controller or operation control panel and by state control input circuit, the data of the duty control signal of the air-conditioner of the single-chip microcomputer U1 of central control circuit 12 before according to the shutdown of storing in its register placed the corresponding work state with air-conditioner; If this moment, the user reset the duty of air-conditioner, then therefore the duty of air-conditioner will do corresponding the adjustment.In above-mentioned two kinds of set-up modes, when if related mode of operation is refrigeration mode or heating mode, then also need to compare with the data of the temperature signal that from its register, reads in the data of the ambient temperature signal that temperature sensor port receives by single-chip microcomputer U1, or compare with the temperature data that is set by the user, determine whether to make air-conditioner to enter corresponding work mode according to different comparative results; If related mode of operation is a refrigeration mode, and when design temperature 〉=environment temperature, then the single-chip microcomputer U1 of central control circuit 12 control air-conditioner is in holding state, and when design temperature＜environment temperature, then the single-chip microcomputer U1 of central control circuit 12 control air-conditioner enters the refrigeration work pattern; If related mode of operation is a heating mode, and when design temperature≤environment temperature, then the single-chip microcomputer U1 of central control circuit 12 control air-conditioner is in holding state, and when design temperature＞environment temperature, then the single-chip microcomputer U1 of central control circuit 12 control air-conditioner enters and heats mode of operation.

4. see Fig. 2, have a power failure running into power supply suddenly, when power supply send electricity again afterwards, 1 pin of the power end of the single-chip microcomputer U1 of central control circuit 12 and 2 pin (see figure 4)s become high level by low level, the single-chip microcomputer U1 of incoming call back central control circuit 12 carries out initialization to system, the single-chip microcomputer U1 of central control circuit 12 reads the data of the duty control signal of storing in the chip IC 104 of duty circuit-breaking memory circuit 16 afterwards, carries out verification; During verification, the single-chip microcomputer U1 of central control circuit earlier to the data of the duty control signal that reads carry out verification and calculating, and draw a verification and; The single-chip microcomputer U1 of central control circuit with this verification and with outage before deposit the verification in the duty circuit-breaking memory circuit for the last time in and compare; If these two verifications and unequal, then check errors; If these two verifications and equal, then verification is correct.If check errors, then the single-chip microcomputer U1 of central control circuit 12 carries out data initialization to the chip IC 104 of duty circuit-breaking memory circuit 16, make it return to the preceding setting of dispatching from the factory, air-conditioner enters holding state simultaneously, waits for that the user opens it by state control input circuit; If verification is correct, then the single-chip microcomputer U1 of central control circuit 12 places the corresponding work state by the data of the duty control signal that is read with air-conditioner.When if the mode of operation of set duty is refrigeration mode or heating mode, also need and to compare in the data of the data of the ambient temperature signal that temperature sensor port receives and the design temperature signal that reads in the chip IC 104 of circuit-breaking memory circuit 16 in working order, determine whether to make air-conditioner to enter corresponding work mode according to different comparative results; If the mode of operation of the setting of reading in the chip IC 104 of circuit-breaking memory circuit 16 is a refrigeration mode in working order, and when design temperature 〉=environment temperature, the single-chip microcomputer U1 control air-conditioner of central control circuit 12 is in holding state, and when design temperature＜environment temperature, then the single-chip microcomputer U1 of central control circuit 12 control air-conditioner enters the refrigeration work pattern; If the mode of operation of the setting of reading in the chip IC 104 of circuit-breaking memory circuit 16 is a heating mode in working order, and when design temperature≤environment temperature, the single-chip microcomputer U1 control air-conditioner of central control circuit 12 is in holding state, and when design temperature＞environment temperature, then the single-chip microcomputer U1 of central control circuit 12 control air-conditioner enters and heats mode of operation.

(embodiment 2)

See Fig. 5, the remainder of the circuit arrangement of present embodiment is identical with embodiment 1, and difference is: it is the I of 24C02 that the chip IC 104 in the duty circuit-breaking memory circuit 16 has adopted model ²The serial EEPROM of C bus.Duty circuit-breaking memory circuit 16 is constructed as follows: the VCC that the 5V power supply connects IC104 holds 8 pin, and the VCC that anti-interference capacitor C105 is connected in IC104 holds 8 pin and GND to hold between 4 pin; The SDA that pull-up resistor R118 is connected in 5V power supply and IC104 holds between 5 pin; Remaining of IC104 1 pin, 2 pin, 3 pin, 4 pin and the equal ground connection of 7 pin; Clock SCL holds 6 pin and data SDA to hold 5 pin to connect 24 pin and 25 pin of single-chip microcomputer U1 respectively.Single-chip microcomputer U1 as main device passes through serial i ²The C bus links to each other with the IC104 serial EEPROM of conduct from device.I ²C bus (INTERINTEGRATED CIRCUIT BUS), i.e. " internal integrate circuit bus ".Single-chip microcomputer U1 passes through I ²When the C bus is carried out transfer of data, only adopt two lines of clock SCL and data SDA.When clock line SCL was high level, data wire SDA jumped to low level from high level, then for beginning the signal of transfer of data; When clock line SCL was high level, data wire SDA was from the low transition to the high level, then for stopping the signal of transfer of data.Beginning and end signal are all produced by main device, at main device between commencing signal and the end signal with from carrying out the transmission of data between the device.After main device produced commencing signal, first byte data of sending was used for selecting from address of devices, and wherein preceding 7 is address code, and the 8th is the direction position; Address code is used for selecting from device, and the direction position is used to determine to write or read; When the direction position is that " 0 " expression sends, promptly main device data write chosen from device, data will be read from device from selected for " 1 " expression main device in the direction position.During transfer of data, when the clock end (SCL) of chip IC 104 was high level, data terminal (SDA) should be in stable state, does not allow saltus step.If when clock end SCL is high level, data terminal (SDA) jumps to low level from high level, then is the condition of beginning transfer of data (START), and orders all after the beginning data transmission conditions is effective; When clock end SCL was high level, data terminal (SDA) for stopping the condition of transfer of data (STOP), stopped all EOs after the data transmission conditions from the low transition to the high level.Byte is write fashionable, has whenever write a byte, send one to transmit end signal ACK, until STOP; When reading, whenever run through a byte, send one to transmit end signal ACK.

The indoor set circuit arrangement that comprises the duty circuit-breaking memory circuit of being made up of other EEPROM (for example with the corresponding duty circuit-breaking memory circuit of the serial EEPROM of parallel EEPROM or spi bus) is not got rid of at this, and the outage starting-up method of its operation principle and detachable air conditioner is similar to the foregoing description 1.

(embodiment 3)

See Fig. 6, window formula single-cooling air-conditioner circuit arrangement has light current power circuit 21, central control circuit 22, reset circuit 23, state control input circuit, I/O expanded circuit 25, duty circuit-breaking memory circuit 26, sample circuit 27, display circuit 29, circuit for controlling motor 30, fan electromotor M1 and compressor M2; Central control circuit 22 has single-chip microcomputer U2; State control input circuit has key circuit 24 and remote-control receiving circuit 28; Duty circuit-breaking memory circuit 26 has electrically-erasable formula memory; Sample circuit 27 has ambient temperature sensor circuit and coil temperature sensor circuit; The light current power input of each circuit of output termination of light current power circuit 21; The output of the output of the ambient temperature sensor circuit of the output of the output of reset circuit 23, key circuit 24, sample circuit 27 and the output of coil temperature sensor circuit, remote-control receiving circuit 28 all links to each other with the single-chip microcomputer U2 of central control circuit 22; The serial output terminal of the single-chip microcomputer U2 of central control circuit 22 connects I/O port expansion circuit 25, the output termination display circuit 29 of I/O port expansion circuit 25; The single-chip microcomputer U2 of central control circuit 22 and duty circuit-breaking memory circuit 26 two-way electrical connections; The output termination circuit for controlling motor 30 of the single-chip microcomputer U2 of central control circuit 22, the power end of the corresponding port wind-receiving fan motor M 1 of the power output end of circuit for controlling motor 30 and the power end of compressor M2.Can make the data of the duty control signal of electrically-erasable formula memory memory air-conditioner during this circuit arrangement works, and air-conditioner run into power supply have a power failure suddenly, when power supply send electricity again afterwards, air-conditioner can be provided with the duty of himself by the data of the duty control signal of the air-conditioner of the last memory of electrically-erasable formula memory before the outage, when if the related mode of operation of this duty is refrigeration mode or heating mode, then automatic temperature according to its place environment determines whether to enter corresponding work mode.

See Fig. 7, reset circuit 23 is made of resistance R 101 and filter capacitor C102 series connection, another termination 5V power supply of resistance R 101, and the other end ground connection of filter capacitor C102, resistance R 101 links to each other with reset terminal 1 pin of single-chip microcomputer U2 with filter capacitor C102 common junction.When resetting, 1 pin low level is effective.

Still see Fig. 7, key circuit 24 has button SW1, SW2, SW3, SW4, SW5, SW6, SW7, resistance R 114, R115, R102, R120, R124, filter capacitor C110, C111, C103 and Fahrenheit/change-over switch Celsius.Wherein button SW1 is used for mode of operation is provided with, button SW2 is used for wind speed is provided with, button SW3 is used for regularly being provided with, button SW4 is used for that relevant duty setting value is added 1 and is provided with, button SW5 is used for that relevant duty setting value is subtracted 1 and is provided with, button SW6 is used for air-conditioner is started shooting, and button SW7 is used for wind pendulum (being also referred to as pendulum wind) is provided with.The temperature show value that Fahrenheit/change-over switch Celsius can be changed on LED (seven sections light emitting diodes of LightEmitting Diode) shows with Fahrenheit or standard Celsius.

Still see Fig. 7, I/O expanded circuit 25 is that label is the I/O mouth extended chip MM74HC164 of IC2.1 pin of IC2,2 pin connect 16 pin of single-chip microcomputer U2, and 8 pin of IC2 connect 28 pin of single-chip microcomputer U2; Wherein 16 pin of single-chip microcomputer U2 are exported serial data, the 28 pin clock signals of single-chip microcomputer U2.IC2 will convert 7 parallel-by-bit signals from the serial signal that pin 1,2 receives to through 13 outputs of pin 4, pin 5, pin 6, pin 10, pin 11, pin 12, pin, and the average current that passes through of each pin is 10mA～20mA therebetween.The end of resistance R 107, R108, R109, R110, R111, R112, R113 connects 4,5,6,10,11,12,13 pin of IC2 respectively, and the other end meets F, A, G, B, C, E, the D of LED respectively; Anti-interference capacitor C104 one end ground connection, 9 pin of another termination MM74HC164,14 pin and 5V power supply.

Still see Fig. 7, label is that the electrically-erasable formula memory EEPROM of IC3 is I ²The 24C02 serial EEPROM of C bus.Label is that the model of the single-chip microprocessor MCU of U2 is PIC16C72A/73B.Duty circuit-breaking memory circuit 26 is made up of IC3, resistance R 116, R117.Single-chip microcomputer U2 as main device passes through serial i ²The C bus links to each other with the IC3 of conduct from device.The 5V power supply is held 8 pin through the VCC that pull-up resistor R116 meets IC3; The SDA that pull-up resistor R117 is connected in 5V power supply and IC3 holds between 5 pin; Remaining of IC3 1 pin, 2 pin, 3 pin, 4 pin and the equal ground connection of 7 pin; The clock SCL of IC3 holds 6 pin and data SDA to hold 5 pin to connect 23 pin and 22 pin of single-chip microcomputer U2 respectively.Single-chip microcomputer U2 passes through I ²When the C bus is carried out transfer of data, only adopt two lines of clock SCL and data SDA.When clock line SCL was high level, data wire SDA jumped to low level from high level, then for beginning the signal of transfer of data; When clock line SCL was high level, data wire SDA was from the low transition to the high level, then for stopping the signal of transfer of data.Beginning and end signal are all produced by main device, at main device between commencing signal and the end signal with from carrying out the transmission of data between the device.After main device produced commencing signal, first byte data of sending was used for selecting from address of devices, and wherein preceding 7 is address code, and the 8th is the direction position; Address code is used for selecting from device, and the direction position is used to determine to write or read; When the direction position is that " 0 " expression sends, promptly main device data write chosen from device, data will be read from device from selected for " 1 " expression main device in the direction position.

See Fig. 7 and Fig. 8, interface CN301 in the interface CN1 map interlinking 8 among Fig. 7, the ambient temperature sensor of sample circuit 27 (does not draw among the figure, be a thermistor) be arranged on the shell of window air conditioner, its temperature signal output links to each other with interface CN304 among Fig. 8 by corresponding interface, and coil temperature sensor also is a thermistor CN305.The temperature signal T1 of ambient temperature sensor output transports to 2 pin of single-chip microcomputer U2 successively through interface CN304, interface CN301 and interface CN1, the temperature signal T2 of coil temperature sensor CN305 output transports to 3 pin of single-chip microcomputer U2 successively through interface CN301 and interface CN1.

Still see Fig. 7, remote-control receiving circuit 28 has remote signal and receives head, anti-interference capacitor C101, C105, and pull-up resistor R122 forms; The signal output part of remote signal reception head connects remote control receiving terminal 21 pin of single-chip microcomputer U2.

Still see Fig. 7, the main devices of display circuit 29 is seven segmentation light emitting diodes; Resistance R 105, R106 and triode Q101 form the anode driving circuit of anode LED COM1 altogether; Resistance R 103, R104 and triode Q102 form the anode driving circuit of anode LED COM2 altogether.The model of I/O expanded circuit 25 is the IC 2 of MM74HC164, and 16 pin of its clock end 8 pin and single-chip microcomputer U2 link to each other, and its data terminal 1 pin links to each other with 16 pin of single-chip microcomputer U2 with 2 pin simultaneously; The output of IC2 links to each other with seven pins of seven segmentation light emitting diodes.

Still see Fig. 7 and Fig. 8, it is 2003 reverse drive IC circuit 301,5 control relay RY202 to RY206 parallel with one another and buzzer BUZ301 that circuit for controlling motor 30 has model.Buzzer BUZ301, resistance R 301, R302 form buzzer circuit.4 pin of single-chip microcomputer U2 among Fig. 7,7 pin, 11 pin are respectively to make fan electromotor be in the control signal output of low wind, apoplexy, high wind state, and 12 pin of single-chip microcomputer U2 are outputs of the control signal of compressor, 14 pin of single-chip microcomputer U2 are outputs of wind pendulum motor (being also referred to as swing motor) control signal, 13 pin of single-chip microcomputer U2 are buzzer control signal outputs, and the CN301 of these outputs in CN1 and Fig. 8 of single-chip microcomputer U2 is connected to the input on the reverse driven IC301 among Fig. 8; The output voltage of each output of IC301 is 0.7V to 3V, and 11 pin as output of IC301,13 pin, 14 pin, 15 pin and 16 pin respectively connect the coil of a relay; 10 pin as output of IC301 connect buzzer circuit.The live wire of civil power is gone into by the AC-L termination, connect an end (also being the power input of relay) of each relay contact, the other end of each relay contact (also being the power output end of relay) directly or by the power end of connector with corresponding electricity consumption device links to each other; Wherein the power output end of relay R Y202, RY203, RY204 links to each other with the high wind speed power input of fan electromotor, middle wind speed power input, low wind speed power input by connector CN204, and the power output end of relay R Y206 connects the power of compressor end; The power output end of relay R Y205 by connector CN202 give a dinner for a visitor from afar pendulum motor power end and connect the power end of synchronous motor by connector CN203.Circuit for controlling motor 30 also has lightning protection circuit; Lightning protection circuit is made up of piezo-resistance ZNR201 and capacitor C 211; Lightning protection circuit is arranged between the ground wire terminals of the power input of each relay and civil power.FUSE1 is a fuse.

See Fig. 8, light current power circuit 21 has AC power input interface CN303, bridge rectifier, capacitor C 301, C302, C303, C304, C305, C306, C307, three terminal regulator IC302 and IC303; Interface CN303 is the interface of input AC 15V, and output AC 15V was to interface CN303 after the 220V AC power was passed through an AC transformer transformation; Diode D301, D302 in the light current power circuit 21, D303, D304 form bridge rectifier, being output+12V DC voltage after 7812 the three terminal regulator IC302 voltage stabilizing through model, is output+5V DC voltage after 7805 the three terminal regulator IC303 voltage stabilizing through model.

See Fig. 7 and Fig. 8, after the circuit arrangement of above-mentioned window air conditioner was used for window air conditioner, its outage starting-up method had following steps:

1. descend the control signal input port of the single-chip microcomputer of central control circuit 22 to be in the state of reception in working order by the control signal of state control input circuit input, the single-chip microcomputer of central control circuit 22 to the data of the duty control signal that comprises mode of operation, temperature, wind speed, wind pendulum information that at every turn receives carry out data check and calculating, thereby obtain a verification and.Carry out data check and calculating the time, the data of the duty control signal that comprises mode of operation, temperature, wind speed, wind pendulum information that the single-chip microcomputer U2 of central control circuit will receive are deposited with respectively in its data check unit, afterwards the single-chip microcomputer U2 of central control circuit to these data in verification unit carry out verification and calculating, therefore obtain a verification and.

2. the single-chip microcomputer U2 of central control circuit 22 deposits this verification and the data that reach the above-mentioned state control signal that receives in the duty circuit-breaking memory circuit 26 in a covered manner, and the data with the above-mentioned state control signal that receives deposit in the relevant register of single-chip microcomputer U2 in a covered manner simultaneously; Thereby when the situation that runs into normal shutdown, the single-chip microcomputer U2 of central control circuit 22 still be in electricity condition, thereby 20 pin (see figure 7)s of its power end are in high level state all the time, so the data of the duty control signal of air-conditioner can not lost before the shutdown of storing in the register of the single-chip microcomputer U2 of central control circuit 22; When running into the situation that power supply has a power failure suddenly, the single-chip microcomputer U2 of central control circuit 22 then is in power failure state, 20 pin (see figure 7)s of its power end become low level by high level, therefore the data of the duty control signal of the air-conditioner before the shutdown of storing in the register of the single-chip microcomputer U2 of central control circuit 22 lose, but preserve the preceding last duty control signal of outage in the chip IC 3 of duty circuit-breaking memory circuit 26.

3. running into the situation of normal shutdown, air-conditioner enters holding state, waits for that the user opens air-conditioner; After the user opened air-conditioner by operation control remote controller or control panel and by state control input circuit, the data of the duty control signal of the air-conditioner of the single-chip microcomputer U2 of central control circuit 22 before according to the shutdown of storing in its register placed the corresponding work state with air-conditioner; If this moment, the user reset the duty of air-conditioner, then therefore the duty of air-conditioner will do corresponding the adjustment.In above-mentioned two kinds of set-up modes, when if related mode of operation is refrigeration mode, then also need to compare with the data of the temperature signal that from its register, reads in the data of the ambient temperature signal that temperature sensor port receives by single-chip microcomputer U2, or compare with the temperature data that is set by the user, determine whether to make air-conditioner to enter the refrigeration work pattern according to different comparative results; When design temperature 〉=environment temperature, then the single-chip microcomputer U2 of central control circuit 22 control air-conditioner is in holding state, and when design temperature＜environment temperature, then the single-chip microcomputer U2 of central control circuit 22 controls air-conditioner and enters the refrigeration work pattern.

4. see Fig. 2, have a power failure running into power supply suddenly, when power supply send electricity again afterwards, 20 pin (see figure 7)s of the power end of the single-chip microcomputer U2 of central control circuit 22 become high level by low level, the single-chip microcomputer U2 of incoming call back central control circuit 22 carries out initialization to system, the single-chip microcomputer of central control circuit 22 reads the data of the duty control signal of storing in the chip IC 3 of duty circuit-breaking memory circuit 26 afterwards, carries out verification; During verification, the single-chip microcomputer U2 of central control circuit earlier to the data of the duty control signal that reads carry out verification and calculating, and draw a verification and; The single-chip microcomputer U2 of central control circuit with this verification and with outage before deposit the verification in the duty circuit-breaking memory circuit for the last time in and compare; If these two verifications and unequal, then check errors; If these two verifications and equal, then verification is correct.If check errors, then the single-chip microcomputer U2 of central control circuit 22 carries out data initialization to the chip IC 3 of duty circuit-breaking memory circuit 26, make it return to the preceding setting of dispatching from the factory, air-conditioner enters holding state simultaneously, waits for that the user opens it by state control input circuit; If verification is correct, then the single-chip microcomputer U2 of central control circuit 22 places the corresponding work state by the data of the duty control signal that is read with air-conditioner.When if the mode of operation of set duty is refrigeration mode, also need and to compare in the data of the data of the ambient temperature signal that temperature sensor port receives and the design temperature signal that reads in the chip IC 3 of circuit-breaking memory circuit 26 in working order, determine whether to make air-conditioner to enter the refrigeration work pattern according to different comparative results; When design temperature 〉=environment temperature, the single-chip microcomputer U2 of central control circuit 22 control air-conditioner is in holding state, and when design temperature＜environment temperature, then the single-chip microcomputer U2 of central control circuit 22 controls air-conditioner and enters the refrigeration work pattern

(embodiment 4)

See Fig. 9, the remainder of the circuit arrangement of present embodiment is identical with embodiment 3, and difference is: it is the serial EEPROM of the Microwire bus of 93C46 that the chip IC 3 in the duty circuit-breaking memory circuit 26 has adopted model.Being constructed as follows of duty circuit-breaking memory circuit 26: the VCC that the 5V power supply connects IC3 holds 8 pin, and the VCC that anti-interference capacitor C106 is connected in IC3 holds 8 pin and GND to hold between 5 pin.The CS that resistance R 117 is connected in 5V power supply and IC3 holds between 1 pin.5 pin of IC3,6 pin and 7 pin ground connection.The Microwire bus adopts clock SK, data input DI, three lines of data output DO to carry out transfer of data.U2 holds 1 pin to link to each other by its 14 pin with the sheet choosing end CS of IC3, U2 holds 2 pin to link to each other by its 23 pin with the synchronizing clock signals input SK of IC3, thereby to IC3 input synchronizing clock signals, U2 holds 4 pin to link to each other with the serial data input DI end of IC3 and the serial data output DO of IC3 by its 22 pin simultaneously.It is that data structure is selected input that the ORG of IC3 holds 6 pin, and this ORG of present embodiment holds 6 pin to connect low level, and selects * 8 structures.IC3 holds 1 pin and DI to hold 3 pin to be first rising edge of receiving in the SK termination behind the high level its CS and is defined as START (beginning).If DI holds the input of 3 pin to satisfy the combination of a kind of required command code, address and data bit in 7 kinds of mode of operations after following the START condition closely, instruction will be performed.Read operation: when CS was high level, IC3 held the content (high-order preceding) of 4 pin serials output designating unit from DO after receiving read command and address.Write operation: when CS is high level, after IC3 receives write order and address, holds 3 pin to receive serial from DI and import 8 bit data (high-order) preceding.

The circuit arrangement that comprises the window air conditioner of the duty circuit-breaking memory circuit of being made up of other EEPROM (for example with the corresponding duty circuit-breaking memory circuit of the serial EEPROM of parallel EEPROM or spi bus) is not got rid of at this, and the outage starting-up method of its operation principle and window air conditioner is similar to the foregoing description 3.

Claims (10)

1, a kind of circuit arrangement of indoor machine of air-conditioner has power circuit (11), central control circuit (12), input interface and communicating circuit (13), output interface circuit (14), circuit for controlling motor (15) and fan electromotor (17); Central control circuit (12) has single-chip microcomputer and the state control input circuit that links to each other with single-chip microcomputer; State control input circuit is a remote-control receiving circuit, perhaps is keying circuit, perhaps is remote-control receiving circuit and keying circuit; The output of power circuit (11) connects the power end of each circuit; Input interface and communicating circuit (13) are provided with can be with the two-way PORT COM that is electrically connected of off-premises station circuit arrangement, also be provided with indoor temperature signal input part and coil temperature signal input part; Input interface and communicating circuit (13), circuit for controlling motor (15) all with two-way electrical connection of single-chip microcomputer of central control circuit (12); The output termination output interface circuit (14) of the single-chip microcomputer of central control circuit (12), the power output end of output interface circuit (14) are given a dinner for a visitor from afar and are put the power input of stepper motor and off-premises station; Circuit for controlling motor (15) and two-way electrical connection of fan electromotor (17); It is characterized in that: this circuit arrangement also has duty circuit-breaking memory circuit (16); The single-chip microcomputer of central control circuit (12) and two-way electrical connection of duty circuit-breaking memory circuit (16), duty circuit-breaking memory circuit (16) has electrically-erasable formula memory; During this circuit arrangement works, make the data of the duty control signal of electrically-erasable formula memory memory air-conditioner, and air-conditioner run into power supply have a power failure suddenly, when power supply send electricity again afterwards, air-conditioner can be provided with the duty of himself by the data of the duty control signal of the air-conditioner of the last memory of electrically-erasable formula memory before the outage; If when the related mode of operation of duty of air-conditioner was refrigeration mode or heating mode, then air-conditioner determined whether to enter corresponding work mode according to the temperature of its place environment automatically.

2, according to the circuit arrangement of the described indoor machine of air-conditioner of claim 1, it is characterized in that: electrically-erasable formula memory is serial EEPROM or parallel EEPROM; When electrically-erasable formula memory was serial EEPROM, serial EEPROM was I ²The serial EEPROM of the serial EEPROM of C bus, Microwire bus or the serial EEPROM of spi bus.

3, by the outage starting-up method of the detachable air conditioner that circuit arrangement carried out of the described indoor machine of air-conditioner of claim 1, have following steps: 1. descend the control signal input port of the single-chip microcomputer of central control circuit (12) to be in the state of reception in working order by the control signal of state control input circuit input, the single-chip microcomputer of central control circuit (12) to the data of the duty control signal that comprises mode of operation, temperature, wind speed, wind pendulum information that at every turn receives carry out data check and calculating, thereby obtain a verification and; 2. the single-chip microcomputer of central control circuit (12) deposits this verification and the data that reach the above-mentioned state control signal that receives in the duty circuit-breaking memory circuit (16) in a covered manner, and the data with the above-mentioned state control signal that receives deposit in the relevant register of single-chip microcomputer in a covered manner simultaneously; Thereby when the situation that runs into normal shutdown, the power end of the single-chip microcomputer of central control circuit (12) is in high level state all the time, so the data of the duty control signal of air-conditioner can not lost before the shutdown of storing in the register of the single-chip microcomputer of central control circuit (12); When running into the situation that power supply has a power failure suddenly, the power end of the single-chip microcomputer of central control circuit (12) becomes low level by high level, the data of the duty control signal of the air-conditioner before the shutdown of storing in the register of the single-chip microcomputer of central control circuit (12) are therefore lost, but preserve the preceding last duty control signal of outage in the duty circuit-breaking memory circuit (16); 3. running into the situation of normal shutdown, air-conditioner enters holding state, waits for that the user opens air-conditioner; After the user opened air-conditioner by state control input circuit, the data of the duty control signal of the air-conditioner of the single-chip microcomputer of central control circuit (12) before according to the shutdown of storing in its register placed the corresponding work state with air-conditioner; If this moment, the user reset the duty of air-conditioner, then therefore the duty of air-conditioner will do corresponding the adjustment; 4. have a power failure suddenly running into power supply, when power supply send electricity again afterwards, the level of the power end of the single-chip microcomputer of central control circuit (12) becomes low level by high level when having a power failure, then become high level during incoming call by low level, the single-chip microcomputer of incoming call back central control circuit (12) carries out initialization to system, the single-chip microcomputer of central control circuit (12) reads the data of the duty control signal of storage in the duty circuit-breaking memory circuit (16) afterwards, carries out verification; If check errors, then the single-chip microcomputer of central control circuit (12) carries out data initialization to duty circuit-breaking memory circuit (16), make it return to the preceding setting of dispatching from the factory, air-conditioner enters holding state simultaneously, waits for that the user opens it by state control input circuit; If verification is correct, then the single-chip microcomputer of central control circuit (12) places the corresponding work state by the data of the duty control signal that is read with air-conditioner.

4, the outage starting-up method of detachable air conditioner according to claim 3, it is characterized in that: step carry out in 1. data check and calculating the time, the data of the duty control signal that comprises mode of operation, temperature, wind speed, wind pendulum information that the single-chip microcomputer of central control circuit (12) will receive are deposited with respectively in its data check unit, afterwards the single-chip microcomputer of central control circuit (12) to these data in verification unit carry out verification and calculating, therefore obtain a verification and; When step is carried out verification to the data of the duty control signal in the duty circuit-breaking memory circuit (16) that reads in 4., the single-chip microcomputer of central control circuit (12) earlier to the data of the duty control signal that reads carry out verification and calculating, and draw a verification and; The single-chip microcomputer of central control circuit (12) with this verification and with outage before deposit the verification in the duty circuit-breaking memory circuit (16) for the last time in and compare; If these two verifications and unequal, then check errors; If these two verifications and equal, then verification is correct.

5, the outage starting-up method of detachable air conditioner according to claim 3, it is characterized in that: after the 3. middle user of step opens air-conditioner by state control input circuit, no matter be in the data of the duty control signal of the air-conditioner before the shutdown of storing in the register according to single-chip microcomputer air-conditioner is placed the corresponding work state, still be in the duty that the user resets, when if the related mode of operation of duty of this setting is refrigeration mode or heating mode, then also need to compare with the data of the temperature signal that from its register, reads in the data of the ambient temperature signal that temperature sensor port receives by single-chip microcomputer, or compare with the temperature data that is set by the user, determine whether to make air-conditioner to enter corresponding work mode according to different comparative results; If related mode of operation is a refrigeration mode, and when design temperature 〉=environment temperature, then the Single-chip Controlling air-conditioner of central control circuit is in holding state, and when design temperature＜environment temperature, then the Single-chip Controlling air-conditioner of central control circuit enters the refrigeration work pattern; If related mode of operation is a heating mode, and during design temperature≤environment temperature, then the Single-chip Controlling air-conditioner of central control circuit is in holding state, and when design temperature＞environment temperature, then the Single-chip Controlling air-conditioner of central control circuit enters and heats mode of operation; Step is correct in verification in 4., the single-chip microcomputer of central control circuit (12) places air-conditioner under the situation of corresponding work state by the data of the duty control signal that is read from duty circuit-breaking memory circuit (16), when if the related mode of operation of this duty is refrigeration mode or heating mode, then also need the data of the design temperature signal that will in the data of the ambient temperature signal that temperature sensor port receives and the memory function circuit that cuts off the power supply, read to compare, determine whether to make air-conditioner to enter corresponding work mode according to different comparative results by single-chip microcomputer; If the mode of operation of the setting of reading in outage memory function circuit is a refrigeration mode, and when design temperature 〉=environment temperature, the Single-chip Controlling air-conditioner of central control circuit is in holding state, and when design temperature＜environment temperature, then the Single-chip Controlling air-conditioner of central control circuit enters the refrigeration work pattern; If the mode of operation of the setting of reading in outage memory function circuit is a heating mode, and when design temperature≤environment temperature, the Single-chip Controlling air-conditioner of central control circuit is in holding state, and when design temperature＞environment temperature, then the Single-chip Controlling air-conditioner of central control circuit enters and heats mode of operation.

6, a kind of circuit arrangement of window air conditioner has light current power circuit (21), central control circuit (22), reset circuit (23), state control input circuit, I/O expanded circuit (25), sample circuit (27), display circuit (29), circuit for controlling motor (30), fan electromotor (M1) and compressor (M2); Central control circuit (22) has single-chip microcomputer; State control input circuit has key circuit (24) and remote-control receiving circuit (28); Sample circuit (27) has ambient temperature sensor circuit and coil temperature sensor circuit; The light current power input of each circuit of output termination of light current power circuit (21); The output of the ambient temperature sensor circuit output of the output of the output of reset circuit (23), key circuit (24), sample circuit (27) and coil temperature sensor circuit output end, remote-control receiving circuit (28) all links to each other with the single-chip microcomputer of central control circuit (22); The serial output terminal of the single-chip microcomputer of central control circuit (22) connects I/O port expansion circuit (25), and the parallel output terminal of I/O port expansion circuit (25) connects display circuit (29); The output termination circuit for controlling motor (30) of the single-chip microcomputer of central control circuit (22), the power end of the corresponding port wind-receiving fan motor (M1) of the power output end of circuit for controlling motor (30) and the power end of compressor (M2); It is characterized in that: this circuit arrangement also has duty circuit-breaking memory circuit (26), the single-chip microcomputer of central control circuit (22) and two-way electrical connection of duty circuit-breaking memory circuit (26), duty circuit-breaking memory circuit (26) has electrically-erasable formula memory; Can make the data of the duty control signal of electrically-erasable formula memory memory air-conditioner during this circuit arrangement works, and air-conditioner run into power supply have a power failure suddenly, when power supply send electricity again afterwards, air-conditioner can be provided with the duty of himself by the data of the duty control signal of the air-conditioner of the last memory of electrically-erasable formula memory before the outage; If when the related mode of operation of duty of air-conditioner was refrigeration mode, then air-conditioner determined whether to enter the refrigeration work pattern according to the temperature of its place environment automatically.

7, according to the circuit arrangement of the described window air conditioner of claim 6, it is characterized in that: electrically-erasable formula memory is serial EEPROM or parallel EEPROM; When electrically-erasable formula memory was serial EEPROM, serial EEPROM was I ²The serial EEPROM of the serial EEPROM of C bus, Microwire bus or the serial EEPROM of spi bus.

8, by the outage starting-up method of the window air conditioner that circuit arrangement carried out of the described window air conditioner of claim 6, have following steps: 1. descend the control signal input port of the single-chip microcomputer of central control circuit (22) to be in the state of reception in working order by the control signal of state control input circuit input, the single-chip microcomputer of central control circuit (22) to the data of the duty control signal that comprises mode of operation, temperature, wind speed, wind pendulum information that at every turn receives carry out data check and calculating, thereby obtain a verification and; 2. the single-chip microcomputer of central control circuit (22) deposits this verification and the data that reach the above-mentioned state control signal that receives in the duty circuit-breaking memory circuit (26) in a covered manner, and the data with the above-mentioned state control signal that receives deposit in the relevant register of single-chip microcomputer in a covered manner simultaneously; Thereby when the situation that runs into normal shutdown, the power end of the single-chip microcomputer of central control circuit (22) is in high level state all the time, so the data of the duty control signal of air-conditioner can not lost before the shutdown of storing in the register of the single-chip microcomputer of central control circuit (22); When running into the situation that power supply has a power failure suddenly, the power end of the single-chip microcomputer of central control circuit (22) becomes low level by high level, the data of the duty control signal of the air-conditioner before the shutdown of storing in the register of the single-chip microcomputer of central control circuit (22) are therefore lost, but preserve the preceding last duty control signal of outage in the duty circuit-breaking memory circuit (26); 3. running into the situation of normal shutdown, air-conditioner enters holding state, waits for that the user opens air-conditioner; After the user opened air-conditioner by state control input circuit, the data of the duty control signal of the air-conditioner of the single-chip microcomputer of central control circuit (22) before according to the shutdown of storing in its register placed the corresponding work state with air-conditioner; If the user resets the duty of air-conditioner, then therefore the duty of air-conditioner will do corresponding the adjustment; 4. have a power failure suddenly running into power supply, when power supply send electricity again afterwards, the power end of the single-chip microcomputer of central control circuit (22) becomes high level by low level, the single-chip microcomputer of incoming call back central control circuit (22) carries out initialization to system, the single-chip microcomputer of central control circuit (22) reads the data of the duty control signal of storage in the duty circuit-breaking memory circuit (26) afterwards, carries out verification; If check errors, then the single-chip microcomputer of central control circuit (22) carries out data initialization to duty circuit-breaking memory circuit (26), make it return to the preceding setting of dispatching from the factory, air-conditioner enters holding state simultaneously, waits for that the user opens it by state control input circuit; If verification is correct, then the single-chip microcomputer of central control circuit (22) places the corresponding work state by the data of the duty control signal that is read with air-conditioner.

9, the outage starting-up method of window air conditioner according to claim 8, it is characterized in that: step carry out in 1. data check and calculating the time, the data of the duty control signal that comprises mode of operation, temperature, wind speed, wind pendulum information that the single-chip microcomputer of central control circuit (22) will receive are deposited with respectively in its data check unit, afterwards the single-chip microcomputer of central control circuit (22) to these data in verification unit carry out verification and calculating, therefore obtain a verification and; When the data that step reads the duty control signal in the duty circuit-breaking memory circuit (26) in are 4. carried out verification, the single-chip microcomputer of central control circuit (22) earlier to the data of the duty control signal that reads carry out verification and calculating, and draw a verification and; The single-chip microcomputer of central control circuit (22) with this verification and with outage before deposit the verification in the duty circuit-breaking memory circuit (26) for the last time in and compare; If these two verifications and unequal, then check errors; If these two verifications and equal, then verification is correct.

10, the outage starting-up method of window air conditioner according to claim 8, it is characterized in that: after the 3. middle user of step opens air-conditioner by state control input circuit, no matter be in the data of the duty control signal of the air-conditioner before the shutdown of storing in the register according to single-chip microcomputer air-conditioner is placed the corresponding work state, still be in the duty that the user resets, if the related mode of operation of duty of this setting is a refrigeration mode, then also need to compare with the data of the temperature signal that from its register, reads in the data of the ambient temperature signal that temperature sensor port receives by single-chip microcomputer, or compare with the temperature data that is set by the user, determine whether to make air-conditioner to enter refrigeration mode according to different comparative results; When design temperature 〉=environment temperature, then the Single-chip Controlling air-conditioner of central control circuit is in holding state, and when design temperature＜environment temperature, then the Single-chip Controlling air-conditioner of central control circuit enters the refrigeration work pattern; Step is correct in verification in 4., the single-chip microcomputer of central control circuit (22) places air-conditioner under the situation of corresponding work state by the data of the duty control signal that is read from duty circuit-breaking memory circuit (26), when if the related mode of operation of this duty is refrigeration mode, then also need the data of the design temperature signal that will in the data of the ambient temperature signal that temperature sensor port receives and the memory function circuit that cuts off the power supply, read to compare, determine whether to make air-conditioner to enter the refrigeration work pattern according to different comparative results by single-chip microcomputer; If when design temperature 〉=environment temperature, the Single-chip Controlling air-conditioner of central control circuit is in holding state, and when design temperature＜environment temperature, then the Single-chip Controlling air-conditioner of central control circuit enters the refrigeration work pattern.

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