CN1123391A - Air conditioner - Google Patents
Air conditioner Download PDFInfo
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- CN1123391A CN1123391A CN 95117779 CN95117779A CN1123391A CN 1123391 A CN1123391 A CN 1123391A CN 95117779 CN95117779 CN 95117779 CN 95117779 A CN95117779 A CN 95117779A CN 1123391 A CN1123391 A CN 1123391A
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Abstract
The invention provides an indoor-outdoor split-typed air conditioner. A DC motor in an outdoor unit 14 is taken as an outdoor fan motor 8; the DC power supply circuit 24 of the driving circuit 25 of a compressor motor 2 is also taken as the power supply of the driving circuit 26 of the motor. A refrigerant reverse valve 5 is also driven by the DC voltage which is generated by the DC power supply circuit 12. The driving circuit 26 and the refrigerant reverse valve 5 are controlled by an outdoor control circuit 11. The DC voltage which is output by the DC power supply circuit 12 is taken as the power voltage of the outdoor control circuit 11 and is supplied to an indoor unit 13 through a connecting circuit 19. The indoor fan motor 7 is also driven by DC voltage.
Description
The present invention relates to a kind of indoor and outdoor detachable air conditioner.
Figure 17 is the block diagram that expression has been disclosed in an example among the P-A_57-55341 or similar conventional air conditioner.Label 1 expression compressor, 2 expression motor, 3 expression indoor heat converters, 4 expression outdoor heat converters, 5 expression cold-producing medium back valves, 6 expression capillaries, 7 expression indoor fan motor, 8 expression outdoor fan motor, 9 expression mains supplies, the indoor control circuit of 10 expressions, the outdoor control circuit of 11 expressions, 12 expression DC power supply circuits, 17-a and 17-b represent modulation-demodulation circuit, 19-a and 19-b represent to provide the connection line of DC voltage.3,7,10 and 17a constitute an indoor unit 13,1,2,4-6,8,11,12 and 17-b constitute an outdoor unit 14.
In Figure 17, compressor 1 is driven by motor 2, indoor heat converter 3, and outdoor heat converter 4, cold-producing medium back valve 5 and capillary 6 constitute a refrigerating circuit.
Electric energy is taken from mains supply 9 and is supplied with the DC power supply circuit 12 of outdoor unit 14.DC power supply circuit 12 forms low-voltage dc power supply, and supplies with dc source by connection line 19 to the indoor control circuit 10 of indoor unit 13.Indoor control circuit 10 is used for controlling whole air-conditioner according to indoor temperature and design temperature, for example controls the shutdown and the control room internal fan motor 7 of compressor 1.Outdoor control circuit 11 is according to the instruction control outdoor unit 14 of indoor control circuit 10.By the modulation-demodulation circuit 17 that is connected on the connection line 19 signal with high frequency modulated is added on the dc source of connection line 19, realizes information transmission between indoor control circuit 10 and the outdoor control circuit 11 with this.
According to these prior art characteristics, have only connection line 19 to be suitable as connection line between indoor unit 13 and the outdoor unit 14.
In addition, according to above-mentioned prior art, business exchange power supply voltage utilizes outdoor unit to receive from mains supply, but now know, business exchange voltage can utilize indoor unit to receive and be sent to outdoor unit, converts DC voltage to and sends indoor unit (for example described in the JP-A-56-155326 like that) at outdoor unit then.
In addition, disclosed air-conditioner is to constitute like this in JP-A-58-83141: the DC power supply circuit that directly carries out rectification of business exchange voltage is located on the outdoor unit and with DC voltage offers compressor and indoor, outdoor fan motor from DC power supply circuit.
In JP-A-58-107092, disclose a kind of compressor and indoor and outdoor fan motor given dc energy source is provided respectively, and be used in the air-conditioner of the dc source generation low output voltage of indoor and outdoor fan motor.
In above-mentioned any prior art, all do not provide the instruction that drives cold-producing medium back valve and other device with dc source.When the cold-producing medium back valve is a kind of valve that is driven by AC power, for example be located in the outdoor unit and be used to when the output voltage of dc source drives the cold-producing medium back valve when the dc source that will comprise photovoltaic TRT (solar cell) or similar device, the out of use problem in this unit can take place, unless will be from the converting direct-current voltage into alternating-current voltage of dc source.
In addition, because receiving electric energy from mains supply in above-mentioned prior art is confined to receive power supply in the indoor unit side or at the outdoor unit side joint, so this air-conditioner of being installed will occur working as is a kind ofly must dispose new electric wire when receiving the air-conditioner of power supply with outdoor unit, and the problem that supply socket is only arranged on the house sidings in being in the particular room of installation site.
An object of the present invention is to provide a kind of air-conditioner that solves the problems referred to above.
Another object of the present invention provides a kind of air-conditioner, wherein when utilizing such as photovoltaic TRT dc sources such as (solar cells), can directly utilize voltage and does not need this voltage transitions is become alternating voltage.
A further object of the invention provides a kind of air-conditioner, wherein when configuration the mains frequency power supply both can also can be received by outdoor unit by indoor unit.
A purpose to achieve these goals, according to one aspect of the present invention, indoor unit is provided with one by indoor control circuit and the electric component that the indoor fan motor is formed, outdoor unit is provided with one by outdoor control electricity circuit, first DC power supply circuit that is used for the drive compression machine, an outdoor fan motor, a cold-producing medium back valve and an electric component that is used for second DC power supply circuit composition of indoor unit electric component, between indoor unit and outdoor unit, be provided for providing the connection line of the output voltage of second DC power supply circuit to the electric component of indoor unit, the outdoor fan driven by Brush-Less DC motor, usually as the driving power of brshless DC motor, the coil of cold-producing medium back valve is driven by second DC power supply circuit first power circuit.In order to realize above-mentioned another purpose, according to another aspect of the present invention, the formation of its unit should make any one unit in indoor unit and the outdoor unit all can receive electric energy from mains supply.
Preferably indoor unit has the device that is used for receiving from the output device of mains supply and mains supply electric energy, outdoor unit also has the device that receives electric energy from mains supply, and when utilizing indoor unit to receive electric energy, the mode that is connected to the output device of indoor unit by the electric energy receiving system with outdoor unit provides mains supply.
Fig. 1 is the block diagram of an embodiment of expression air-conditioner of the present invention;
Fig. 2 A and 2B are the curve maps of the difference in speed control between induction conductivity and the dc motor;
Fig. 3 is the block diagram of annexation between the modulation-demodulation circuit in the presentation graphs 1 and the connection line in more detail;
Fig. 4 A to 4D is the oscillogram of each several part signal in the presentation graphs 3;
Fig. 5 is the circuit diagram of an example of a modulating part of the modulation-demodulation circuit among Fig. 1 of expression and an oscillating circuit;
Fig. 6 is the circuit diagram of an example of the demodulation part of the modulation-demodulation circuit among Fig. 1 of expression;
Fig. 7 is the block diagram of another embodiment of expression air-conditioner of the present invention;
Fig. 8 is the block diagram of another embodiment of expression air-conditioner of the present invention;
Fig. 9 is the circuit diagram of an example of the modulation-demodulation circuit in the presentation graphs 8;
Figure 10 A to 10B is the oscillogram of each several part signal in the difference presentation graphs 9;
Figure 11 is the block diagram of another embodiment of expression air-conditioner of the present invention;
Figure 12 is the block diagram of another embodiment of expression air-conditioner of the present invention;
Figure 13 is the block diagram of another embodiment of expression air-conditioner of the present invention;
Figure 14 is the block diagram of another embodiment of expression air-conditioner of the present invention;
Figure 15 be more specifically presentation graphs 8 and Figure 11 to block diagram embodiment illustrated in fig. 14;
Figure 16 A and 16B are the flow charts of an example of representing the method for the improper property that determine to be communicated with respectively;
Figure 17 is the block diagram of an example of expression conventional air conditioner.
Now with reference to accompanying drawing embodiments of the invention are described.
Fig. 1 is the block diagram of an embodiment of expression air-conditioner of the present invention, wherein 3a and 3b represent indoor heat converter, 9 ' expression mains supply, 13-1 to 13-N are represented N group indoor unit, and 14-a to 14-b represents oscillating circuit, 18 and 19 expression connection lines, 24 expression DC power supply circuits, 25 to 27 expression drive circuits, 28 expression close/open valves, the terminal of 130,131 and 140 expression mains ac power supply.In addition, with the label representative parts identical identical among Figure 17, and omitted the description that repeats with Figure 17.
In Fig. 1, the terminal 130 and 131 that is located at indoor unit 13-1 interconnects in indoor unit, and terminal 130 receives business exchange voltage from civil power electricity power supply 9, and the business exchange voltage that receives is offered terminal 131.Terminal 140 is the terminals that are used for receiving the business exchange voltage that is located at outdoor unit 14.When terminal 140 is connected on the outlet terminal 131 of indoor unit 13-1 by connection line 18, can provide commercial alternating voltage to an air-conditioner from mains supply 9.On the other hand, when connection line is not connected between terminal 131 and 140, but the terminal 140 of outdoor unit 14 is connected to 9 ' time of mains supply, can be from outdoor mains supply 9 ' provide commercial AC energy to air-conditioner.
When being provided with a plurality of indoor units (as shown in Figure 1), and when utilizing indoor unit to receive electric energy from mains supply, it is enough to be connected to any one indoor unit in the such indoor unit of a plurality of indoor unit 13-1 as shown in the drawing.
Be that example is described electric power system at first now with reference to air-conditioner shown in Figure 1 and to receive electric energy by indoor unit 13-1.
In Fig. 1, a connection line 18 that is located in two connection lines between indoor unit 13-1 and the outdoor unit 14 is connected on DC power supply circuit 12 and 24 by indoor unit 13-1 from indoor mains supply 9.Therefore, offer outdoor unit 14 from the business exchange voltage of mains supply 9 by connection line 18, and in DC power supply circuit 12 and 24, convert DC voltage to.In addition, connection line 19 is connected between the electric component (as DC power supply circuit 12) and the indoor control circuit 10 in the indoor unit 1301 in the outdoor unit 14, and the DC voltage that produces in the DC power supply circuit 12 is become the supply voltage of electric component (as indoor control circuit 10).
In addition, from viewpoints such as power consumption, occupation of land scales, the conversion electric power that is used to receive as the mains supply of importing is to be applicable to DC power supply circuit 12.But also can adopt the tandem voltage-stabilized power supply that has low-voltage dc power supply, this low-voltage direct is that the source electricity utilizes transformer and comes the sinking line voltage to obtain to its rectification.In addition, utilization also can be adopted direct current transducer as the direct current of the DC voltage of the DC power supply circuit 24 of input.
Utilize said structure, can receive the civil power alternating voltage by the method that indoor unit is directly connected on the socket (inlet) that is located at indoor room air conditioner.And needn't resemble the prior art shown in Figure 17 and electric wire is installed at outdoor unit.On the contrary, when mains supply 9 can be applicable to outdoor unit, can receive the business exchange electric energy from the terminal 140 of outdoor unit 14.
In addition, the DC voltage that utilization provides by connection line 19 from the DC power supply circuit 12 of outdoor unit 14 is as the supply voltage that is applied to the interior indoor control circuit 10 of electric component (for example indoor fan motor) and indoor unit 13, and can consider that low pressure with about 35V is as the necessary maximal pressure of these electric components.When this low dc voltage when the supply voltage, large-scale high voltage component just becomes unnecessary for indoor unit 13, and overheated and possibility of fire has not existed fully yet.Therefore, needn't use things such as iron plate to come wind speed conversion driving circuit of covering chamber's internal fan motor 7 etc. fully.As for providing power supply, then can make the peak value of the peak value of DC voltage less than alternating voltage to indoor unit 13.Can make the insulation distance of substrate or analog less like this, and this performance makes danger on fire very little, thereby and can constitute small-sized wind speed conversion driving circuit or similar circuit.Under the situation of alternating voltage, peak value is the subduplicate twice height of virtual value, but under the DC voltage situation, peak value equates with root-mean-square value.Usually, 30V or be lower than under the alternating voltage of 30V and do not have danger on fire, and at 42V or be lower than under the DC voltage of 42V and do not have danger on fire.
When doing of wind speed conversion driving circuit or similar circuit hour, can be indoor unit 13 in that part ofly vacate certain space, therefore just can increase the function of air-conditioner by setting up parts and device.For example, the device that the need that can expect are set up has odor removal or valve, and when having set up close/open valve, indoor heat converter can be divided into two, be indoor heat converter 3a and 3b, and they are coupled together by a close/open valve 28, so just can provide on demand with one among heat exchanger 3a and the 3b as the radiator operation and another moves as cooler, and will send into the function in room through the hot-air of dehumidifying.
In this case close/open valve 28 is opened under " opening " state, in that " pass " is closed under the state.But this moment, valve is not in buttoned-up status, but plays a part a pressure reducer.Though it may be noted that the opening and closing state of logic " ON " and " OFF " being given valve respectively,, also can " OFF " and " ON " give the opening and closing state of valve respectively according to employed system.As pressure reducer the time, indoor heat converter 3a plays cooler, indoor heat converter 3b plays radiator, and described circulation heat and utilize the dehumidifying operation that this cooler carries out and utilize the radiators heat air to compensate the temperature that dehumidifying reduces and all become feasible again.As a kind of method of the control that dehumidifies, need heat is again controlled operation so that the speed by control compressor 1, indoor fan motor 7 and outdoor fan motor 8 dehumidifies.A kind of these fan motors 7 and 8 and the method for compressor 1 controlled hereinafter will be described.
Promptly, be used for being controlled at about 220V to the DC voltage that outdoor fan motor 8 provides the drive circuit 26 of drive current to utilize pulse width modulation (PWM) mode that DC power supply circuit 24 is provided, this DC power supply circuit 24 is to be made of the phase inverter of controlling PWM, and produces the Motor Drive DC voltage of a scope between the extremely about 220V of 0V according to the instruction of outdoor control circuit 11.So just can be according to the instruction of outdoor control circuit 11 speed of control room external fan motor 8 accurately.
As mentioned above, can accurately control this motor 8 with dc motor as outdoor fan motor 8, and control range increases also, it is more or less freely that the control of moisture removal also becomes.
Opposite with above-mentioned situation, when using induction conductivity as outdoor fan motor 8, because the relation of starting torque, so can not directly begin low cruise.Therefore, Once you begin carry out just need being transformed into low cruise after the high-speed cruising and get on, will be higher than the rotating speed of dc motor in addition owing to the maximum speed of low-speed running, so control range narrows down.In addition, according to different situations, be necessary to make low-speed running to be lower than this scope.But because this is impossible, thus be necessary to carry out intermittent running, so that the effect of acquisition and this low-speed running equivalence.For the rotating speed of conversion induction conductivity, centre tap is set and the method that it is changed is become very necessary in addition.
So, when hope for example improves heat, just need to reduce the speed of outdoor fan motor.But when the usability induction motor, just need after beginning to run up, be transformed into the tap of required speed, so that be converted to required low-speed running (shown in Fig. 2 A) with the speed that can start.Yet, because the number of determining to depend on tap of the switch process number of speed, so induction conductivity is not suitable for carrying out the accurate control of heat.In addition, when needs during, then can make average speed equal the speed (shown in Fig. 2 A) of required low-speed running, thereby can obtain required heat by carrying out intermittent duty with lowest speed or than low-speed running.But in this intermittent duty process, change at the sound of the cold-producing medium in intermittent running period, and produce sound of fan motor etc. discontinuously, this all is undesirable.
When using dc motor, owing to do not have starting torque or similar problem, so can directly begin low cruise by shown in Fig. 2 B.In addition, owing to can only change speed by changing applied voltage, thus when wishing to improve when adding heat, can be by control applied voltage setting low-speed running, to add heat corresponding with this for its speed.Therefore change speed in addition serially, can accurately control and add heat.So the problems referred to above all when the usability induction motor have all very obtained solution effectively.
Dc motor is used for indoor fan motor 7 and is controlled by indoor control circuit 10.Be used for providing the drive circuit 27 of drive current to form by an on-off circuit and a negation gate circuit to indoor fan motor 7, and utilize on-off circuit to be reduced to about 35V by the dc source voltage that connection line 19 applies from outdoor unit 14, utilize the negation gate circuit according to load, for example outside air temperature, indoor temperature and design temperature are just, scope inner control voltage 0 to 35V, and this voltage is applied on the dc motor of indoor fan motor 7.Compare with ac motor, because dc motor torque deficiency, so it does not shut down yet even voltage descends, so it is controllable.
In addition, cold-producing medium back valve 5 is to utilize the voltage of DC power supply circuit 12 to drive.Like this, will it not convert alternating voltage to, so just do not need converter because DC voltage can be utilized.Therefore just do not have the energy loss in the converter.Also can directly utilize the DC voltage of from solar cell, exporting in addition.The motor 2 of compressor 1 is by the direct voltage drive that offers DC power supply circuit 24 by drive circuit 25, but drive circuit 25 is by outdoor control circuit 11 controls, and therefore controlled motor 2.The method of control motor 2 has for example been described in JP-B-58-25038.
Modulate the outgoing carrier of self-oscillating circuit 14-a from the information signal of indoor control circuit 10 outputs by modulation-demodulation circuit 17-a, and modulated carrier wave is added on the DC voltage of connection line 19, be transferred to outdoor unit 14 simultaneously.In outdoor unit 14, utilize this information signal of modulation-demodulation circuit 17-b demodulation and it is offered outdoor control circuit 11.In addition, from the DC voltage of information signal by modulation-demodulation circuit 17-b modulation 19 of outdoor control circuit 11 outputs, be transferred to indoor unit 13 simultaneously.In indoor unit 13, utilize modulation-demodulation circuit 17-a demodulating information signal and it is offered indoor control circuit 10.
Similar with above-mentioned conventional air conditioner, the information signal of passing to outdoor control circuit 11 from indoor control circuit 10 is the control information that is used to control outdoor unit 14, and from the information signal that outdoor control circuit 11 offers indoor control circuit 10 is that this information is represented the state of outdoor unit 14 each parts etc. to the response message from the control information of indoor unit 13.
Therefore, this embodiment can receive business exchange voltage and transmit business exchange voltage and DC voltage between indoor unit 13 and outdoor unit 14 from indoor unit 13 side joints, and the control circuit of utilization and above-mentioned conventional air conditioner equal number carries out the information transmission between indoor control circuit 10 and outdoor control circuit 11.Fig. 3 is a circuit diagram of representing annexation between modulation-demodulation circuit 17-a and 17-b and the connection line 19 particularly, wherein 19-a and 19-b represent electric wire, 21-a and 21-b represent capacitor, 22-a and 22-b represent inductance coil, those with Fig. 1 in identical parts use the label identical to represent with Fig. 1, and omit the description that repeats.
In Fig. 3, connection line 19 is made up of two electric wire 19-a and 19-b, an electric wire 19-b ground connection wherein.The modulation-demodulation circuit 17-a of indoor unit 13 is connected one of indoor control circuit 10 and sends on terminal and the receiving terminal, and be connected on the earth-free electric wire 19-a by direct current block-condenser 21-a, in addition, along a transmission signal jam inductance coil 22-a is set on the contact of capacitor 21-a and electric wire 19-a and the electric wire 19-a between the indoor control circuit 10.Similarly, the modulation-demodulation circuit 17-b of outdoor unit 14 sides is connected one of outdoor control circuit 11 and sends on terminal and the receiving terminal, and is connected on the earth-free electric wire 19-a by direct current block-condenser 21-b.In addition, along a transmission signal jam inductance coil 22-b is set on the contact of capacitor 21-b and electric wire 19-a and the electric wire 19-a between the DC power supply circuit 12.
Next the method for operation of this example is described with reference to Fig. 4 A to 4D of each parts signal in the presentation graphs 3.
As mentioned above, the DC voltage of sternly giving birth in DC power supply circuit 12 offers indoor unit 13 as the supply voltage of indoor control circuit 10, indoor fan motor 7 or similar device by electric wire 19-a and 19-b.At this moment, utilize capacitor 21-b can avoid this DC voltage is offered modulation-demodulation circuit 17-b, and utilize capacitor 21-a also can avoid this DC voltage is offered modulation-demodulation circuit 17-a.Therefore, this DC voltage offers indoor control circuit 10, indoor fan motor 7 etc. as supply voltage.
When the transmission terminal from indoor control circuit 10 for example produces the transmit information signals shown in Fig. 4 A, this transmit information signals is offered the carrier wave shown in for example Fig. 4 B that modulation-demodulation circuit 17-a and modulation come self-oscillating circuit 14-a.This carrier wave is the sufficiently high signal of a kind of frequency of frequency ratio transmit information signals.The modulation signal that so obtains is offered electric wire 19-a by capacitor 21-a, and it is added on the DC voltage of DC power supply circuit 12.By electric wire 19-a transmit information signals is offered outdoor unit 14 by this method.
Attention should prevent from the transmit information signals of modulation-demodulation circuit 17-a is offered indoor control circuit 10, indoor fan motor 7 etc. by inductance coil 22-a, and only DC voltage is offered indoor control circuit 10 and indoor fan motor 7 etc.
To be set in than in the little scope of the magnitude of voltage of the DC voltage the connection line 19 from the value of magnification that modulation-demodulation circuit 17-a offers the transmit information signals of electric wire 19-a.Shown in Fig. 4 C,, DC voltage will never be interrupted because of transmit information signals by this mode.Therefore, enough power supplys can be offered indoor control circuit 10 and indoor fan motor 7 etc.
The transmit information signals that sends by electric wire 19-a is separated and utilize the capacitor 21-b in the outdoor unit 14 that it is extracted from DC voltage, offer modulation-demodulation circuit 17-b again and be demodulated into a kind of receiving information signal shown in Fig. 4 D, offer outdoor control circuit 11 by receiving terminal then.
In said method, realized information signal from the transmission of indoor unit 13 to outdoor unit 14.
Also similar from outdoor unit 14 with said method to the transmission of indoor unit 13, the carrier wave of oscillating circuit 14-b (shown in Fig. 4 b) is modulated with a kind of transmit information signals of the transmission terminal output of the outdoor control circuit 11 from modulation-demodulation circuit 17-b shown in Fig. 4 A, and be added on the DC voltage as shown in Fig. 4 C, and then be sent to indoor unit 13 by capacitor 21-b.In indoor unit 13, utilize capacitor 21-a only to extract this transmission signal and in the modulation-demodulation circuit 17-a shown in Fig. 4 D this transmission signal of demodulation, and this signal is offered indoor control circuit 10 by this receiving terminal.
Just can realize by this way dc source voltage being provided and realizing information transmission between indoor control circuit 10 and the outdoor control circuit 11 to indoor unit 13 from DC power supply circuit 12.
Fig. 5 is the circuit diagram of the example of the modulating part of modulation-demodulation circuit 17-a in the presentation graphs 1 and 17-b and oscillating circuit 14-a and 14-b.Because the modulating part of modulation-demodulation circuit 17-a and the modulating part of modulation-demodulation circuit 17-b, and oscillating circuit 14-a has identical structure with oscillating circuit 14-b, so will only describe modulation-demodulation circuit 17-a and oscillating circuit 14-a here.
In Fig. 5, oscillating circuit 14-a is made up of resistance R 16 to R20, capacitor CO5 and voltage comparator COM2.Utilize triode Q3 and Q4 that the output signal of this oscillating circuit 14-a is amplified to above-mentioned amplitude, and offer electric wire 19-a by capacitor 21-a.Usually input terminal 15-a is set on the top grade, triode Q2 connects, capacitor CO5 short circuit.So just, oscillating circuit is temporarily interrupted.Transmit information signals from input 15-a input, makes triode Q2 disconnect as low level signal then.Utilize the method to make oscillating circuit 14-a produce carrier wave.That is to say, owing in the cycle of low level transmit information signals, produce carrier wave, so can be from the transmission signal of triode Q4 acquisition with the transmit information signals modulation.
Fig. 6 is the circuit diagram of an embodiment of the demodulation part of modulation-demodulation circuit 17-a among Fig. 1 of expression and 17-b; Because the demodulation part structure of modulation-demodulation circuit 17-a and modulation-demodulation circuit 17-b is identical, so will only describe the demodulation part of modulation-demodulation circuit 17-a here.
In Fig. 6, will offer voltage comparator COM1 by the transmit information signals that capacitor 21-a extracts and compare with the reference voltage that utilizes resistance R O5 and RO6 to determine.When the transmit information signals that obtains by modulated carrier did not send, the output voltage that the input voltage of voltage comparator COM1 is lower than reference voltage and voltage comparator COM1 was zero.Opposite with this situation, when transmit information signals had sent out, the amplitude of carrier wave was higher than reference voltage.Like this, just export the signal of this carrier frequency from voltage comparator COM1.Utilize a diode DO1 and a capacitor CO3 that the output signal of voltage comparator COM1 is carried out rectification and filtering, and drive triode Q1.Can obtain a receiving information signal by an outlet terminal 16-a whereby.This receiving information signal is offered the receiving terminal of the indoor control circuit 10 among Fig. 3.
As mentioned above, in the present embodiment, DC voltage can not be transmitted signal interruption.Therefore, in indoor unit 13, can fully effectively utilize the power supply of outdoor unit 14, and can reduce to be located at the size of the DC power supply circuit 12 in the outdoor unit 14, and can not reduce owing to offer the power supply of indoor unit 13, reduce so also can prevent the air containment of indoor fan motor 7
Though receive mains voltage by indoor unit 13 in the above-described embodiments, also can directly receive power supply by outdoor unit 14.In this case, when one or more indoor units 13 are connected on the outdoor unit 14, the connection line 18 of mains voltage just becomes unnecessary, and the connection line 19 that only is used to transmit DC voltage just can offer supply voltage indoor unit 13 and realize transmission between indoor control circuit 10 and the outdoor control circuit 11, so just only needs two connection lines.
As mentioned above, the feature of utilizing outdoor unit 14 to receive the indoor and outdoor formula air-conditioner of mains voltage is: just enough with two connection lines between outdoor unit and indoor unit.
Fig. 7 is the block diagram of another embodiment of expression air-conditioner of the present invention, solar cell of 15 expressions wherein, those with Fig. 1 in identical parts use the label identical to represent with Fig. 1, and omit the description of repetition.
In this embodiment, solar cell is connected on the outdoor unit 14 of embodiment shown in Fig. 1.
In Fig. 7, the connection terminal of solar cell is located on the outdoor unit 14.When solar cell 15 was connected to this terminal, solar cell 15 and DC power supply circuit 24 played a part the power supply of drive circuit 25 and 26 respectively, and the output dc voltage of solar cell 15 is offered DC power supply circuit 12.In this case, strong and when making the output voltage values of solar cell 15 also higher when the light of sunlight, to utilize the output voltage of solar cell 15 certainly.Therefore, for preventing to flow to the reversing the current of solar cell 15, also be provided with the anti-locking apparatus (not shown) of reversing the current from outdoor unit 14.
In the present embodiment, obviously should use the dc source except solar cell, but under the situation that its output voltage is not converted to alternating voltage, can use the such dc source of solar cell 15, this is because each electric component of outdoor unit 14 and indoor unit 13 all is to constitute with direct current component as fan motor 7 and 8, cold-producing medium back valve 5 etc.
Fig. 8 is the block diagram of another embodiment of expression air-conditioner of the present invention, those with Fig. 1 in identical parts use the label identical to represent with Fig. 1, and omit the description of repetition.
In Fig. 8, modulation-demodulation circuit 17-a is connected between the indoor control circuit 10 of a connection line 19 and an indoor unit 13, and modulation-demodulation circuit 17-b is connected between the outdoor control circuit 11 of a connection line 19 and an outdoor unit 14.By means of the DC voltage on the modulation-demodulation circuit 17-a modulation connection line 19, and this output signal is sent to outdoor unit 14 from the transmit information signals of indoor control circuit 10 outputs.In outdoor unit 14, this transmit information signals is delivered to outdoor control circuit 11 after demodulation in modulation-demodulation circuit 17-b.In addition, by the DC voltage on the modulation-demodulation circuit 17-b modulation connection line 19, and then be sent to indoor unit 13 from the transmit information signals of outdoor control circuit 11 outputs.In indoor unit 13, this transmit information signals is delivered to indoor control circuit 10 after by modulation-demodulation circuit 17-a demodulation.Structure outside the said structure has been omitted in the accompanying drawings, but the structural similarity shown in these structures and Fig. 1 and Fig. 7.
As mentioned above, in the present embodiment, the information signal between indoor control circuit 10 and the outdoor control circuit 11 transmits by the transmit information signals of modulation DC voltage.In the present embodiment, also can be from the indoor unit 13 side joints electric alternating voltage of closing, and can utilize and the control circuit of above-mentioned conventional air conditioner equal number carries out the transmission of civil power alternating voltage or DC voltage between indoor unit 13 and outdoor unit 14, and carry out the information transmission between indoor control circuit 10 and the outdoor control circuit 11.
Fig. 9 is the circuit diagram of the embodiment of modulation-demodulation circuit 17-a in the presentation graphs 8 and 17-b, wherein 19-a and 19-b represent electric wire, 20-a and 20-b indication transformer, 21-a and 21-b represent capacitor, 22-a and 22-b represent inductance coil, and 23-a1,23-a2,23-a3,23-b1,23-b2 and 23-b3 represent winding.With parts identical among Fig. 8 use with Fig. 8 in identical label represent, and omit the description that repeats.
In Fig. 9, the modulation-demodulation circuit 17-a of indoor unit 13 by transformer 20-a, direct current block-condenser 21-a and the inductance coil 22-a that is used to increase impedance form.Connection line 19 between indoor control circuit 10 and DC power supply circuit 12 is made up of two wire 19-a and 19-b, the terminal of winding 23-a1 in the transformer 20-a directly is connected on the electric wire 19-b, and its another terminal is connected on the electric wire 19-a by capacitor 21-a.In addition, the winding 23-a2 of transformer 20-a is connected on the transmission terminal of indoor control circuit 10, and the winding 23-a3 of transformer 20-a is connected on the receiving terminal of indoor control circuit 10.Inductance coil 22-a is provided with along contact and the electric wire 19-a between the indoor control circuit 10 of capacitor 21-a and electric wire 19-a.
Similarly, the modulation-demodulation circuit 17-b of outdoor unit 14 sides by transformer 20-b, direct current block-condenser 21-b and the inductance coil 22-b that is used to increase impedance form.The terminal of winding 23-b1 in the transformer 20-b directly is connected on the electric wire 19-b, and its another terminal is connected on the electric wire 19-a by capacitor 21-b.In addition, the winding 23-b2 of transformer 20-b is connected on the transmission terminal of outdoor control circuit 11, and the winding 23-b3 of transformer 20-b is connected on the receiving terminal of outdoor control circuit 11.Inductance coil 22-b is provided with along contact and the electric wire 19-a between the DC power supply circuit 12 of capacitor 21-b and electric wire 19-b.
The method of operation of this example is described with reference to Figure 10 A to 10C of each parts signal in the presentation graphs 9 below.
As mentioned above, the DC voltage that produces in DC power supply circuit 12 offers indoor control circuit 10 by electric wire 19-a and 19-b.At this moment, utilize capacitor 21-b can avoid this DC voltage is offered transformer 20-b, and utilize capacitor 21-a also can avoid DC voltage is offered transformer 20-a.Therefore, this DC voltage offers indoor control circuit 10 etc. as supply voltage.
When the transmission terminal output from indoor control circuit 10 has the transmit information signals (shown in Figure 10 A) of positive and negative level, this transmit information signals offers electric wire 19-a and 19-b by winding 23-a2 and the 23-a1 of transformer 20-a, is sent to transformer 20-b afterwards at modulation DC voltage (shown in Figure 10 B) then.At this moment, utilize the high impedance of capacitor 21-b can avoid this transmit information signals is sent to indoor control circuit 10.In transformer 20-b, utilize capacitor 21-b from DC voltage, only to extract transmit information signals (shown in Figure 10 C) with the transmit information signals modulation, and this transmit information signals is received this moment by winding 23-b1 and the 23-b3 of transformer 20-b by the receiving terminal of outdoor control circuit 11, utilizes the high impedance of capacitor 22-b can avoid this transmit information signals is sent to DC power supply circuit 12.
Similarly, from the transmit information signals of the transmission terminal of outdoor control circuit 11 output winding 23-b2 and the winding 23-a1 of 23-b1, electric wire 19-a and 19-b and transformer 20-a and the receiving terminal that 23-a3 delivers to indoor control circuit 10 by transformer 20-b.In this case, utilize inductance coil 22-a and 22-b also can avoid this transmit information signals is offered indoor control circuit 10 or DC power supply circuit 12.
Therefore, can dc source voltage be supplied with the indoor control circuit 10 of indoor units 13 and realize information transmission between indoor control circuit 10 and the outdoor control circuit 11 from DC power supply circuit 12 by connection line 19.
Figure 11 is the block diagram of another embodiment of expression air-conditioner of the present invention, 20 expression display circuits wherein, those with Fig. 8 in identical parts use with Fig. 8 in identical label represent, and omit the description of repetition.
In Figure 11, when during passing through connection line 19 and modulation-demodulation circuit 17-a and 17-b transmission information between indoor control circuit 10 and the outdoor control circuit 11, when in official hour cycle (time cycle according to the difference of content transmitted etc. and difference) or longer time cycle, stopping received signal, can produce the transmission mistake.Indoor control circuit 10 and outdoor control circuit 11 judge that this mistake is the abnormality of transfer circuit, and stop indoor unit 13 and outdoor unit 14, i.e. the operation of air-conditioner, and indoor control circuit 10 drives display circuit 20 to demonstrate this fault.Show for fault,, just can observe, thereby finish display packing from indoor as long as in the indoor unit 13 of air-conditioner, adorn a display device, for example, the flash of light except that normal the demonstration.
The measure that utilize that this method can find to transmit simply unusual and taking rapidly repaired.
Figure 12 is the block diagram of another embodiment of expression air-conditioner of the present invention, label 21 expression interrupt circuits wherein, those with Fig. 8 in identical parts use with Fig. 8 in identical label represent, and omit the description of repetition.
In Figure 12, be used for being located at outdoor unit 14 sides from the interrupt circuit 21 of DC power supply circuit interruption DC voltage.This interrupt circuit 21 is by 11 controls of outdoor control circuit, and judges transfer circuits when outdoor control circuit 11 and occur when unusual, and circuit 21 shuts down air-conditioner and also drives interrupt circuit 21, so that interruption provides DC voltage to indoor unit 13.
Utilize this method to carry out electric protection, to avoid the destruction of fault to indoor unit 13.
Interrupt circuit 21 can be made of the circuit breaker and the semiconductor switch that are connected with connection line.
Figure 13 is the block diagram of another embodiment of expression air-conditioner of the present invention, label 22 expression diodes wherein, those with Fig. 8 in identical parts use with Fig. 8 the label in identical to represent, and omit the description of repetition.
In Figure 13, diode 22 is connected between the connection line 19-a and 19-b in the indoor unit 13.The positive pole of this diode 22 is connected on the connection line 19-b of ground connection, and its negative pole is connected on the earth-free connection line 19-a.Therefore, when connection line 19 normally connects, it is the anode that connection line 19-a is positioned at DC voltage, when connection line 19-b is positioned at the negative terminal of DC voltage, diode 22 is applied in backward voltage and is in off-state, and DC voltage normally imposes on indoor unit 13 from DC power supply circuit 12.
Yet, if connection line 19 is connected on the indoor unit 13, make connecting line 19-a be positioned at the positive terminal of diode 22 mistakenly, and connection line 19-b is when being positioned at the negative pole end of diode 22 mistakenly, DC voltage imposes on diode 22 along forward, makes diode 22 be in ON and (connects 0 position.The result overcurrent occurs on DC power supply circuit 12, so the current foldback circuit on DC power supply circuit 12 begins to work.Thereby stop to provide DC voltage.Make indoor control circuit 10 be subjected to overcurrent protection by this method.
In addition; when on DC power supply circuit 12, not establishing current foldback circuit; should at least one circuit in connection line 19-a and 19-b fuse 23 be set, when incorrect link connection line 19, provide DC voltage to indoor unit 13 thereby fuse 23 will be blown interruption when overcurrent.Make indoor control circuit 10 be subjected to overcurrent protection by this method.
In Figure 13 and embodiment shown in Figure 14, utilize diode 22 or fuse 23 that DC voltage is neither descended and also do not consume, the capacitance of DC power supply circuit 12 can be reduced like this and the temperature rise of indoor control circuit 10 can be reduced.Figure 15 is a block diagram of more specifically representing the foregoing description.Label 101 expression power switches, 103 expression thermosensitive resistor and circuits, 104 expression Digiplexs, 105 expression wireless receiving circuits, 106 expression buzzing circuit, 107 expressions are used for the motor of vertical wind direction board, and circuit is reseted in 108 expressions, the indoor control circuit of 109 expressions, 110 expression indoor fan motor drive circuits, 201 expression electromagnetic contactors, 202 expression power circuits, 203 expression (PCC) powers, the outdoor control microcomputer of 204 expressions, 205 expression position detecting circuits, 207 expression current control circuits, 208 expression back valve drive circuits, 209 expression outdoor fan motor drive circuits, 210 expression thermosensitive resistor and circuits, 211 expression display circuits, circuit is reseted in 212 expressions, and the parts identical with above-mentioned accompanying drawing are represented with identical label.
In Figure 15, receive the civil power alternating voltage by indoor unit 13, and voltage is delivered to outdoor unit 14 by power switch 101 and connection line 18.When air-conditioner did not use the oversize time, power switch 101 was the air-conditioner master switch that are used to close air-conditioner.When outdoor unit 14 sides from city's electric energy 9 ' during the reception power supply, by the connection line 18 ' mains ac power supply is applied on electromagnetic contactor 201 and the DC power supply circuit 12.
Above-mentioned indoor control circuit 10 is that the center constitutes with indoor control microcomputer 102.Indoor control microcomputer 102 utilizes thermosensitive resistor and circuit 103 to detect room temperature.In addition, the user is provided with design temperature, mode of operation, wind speed etc. with Digiplex 104, and the setting signal that utilizes wireless receiving circuit 105 to receive from Digiplex 104, this setting signal is offered indoor control microcomputer 102 again.Indoor control microcomputer 102 calculates and produces ON-OFF (switch) signal (as shown in Figure 8), speed command signal or the similar signal of a compressor 1 according to room temperature that is detected by thermosensitive resistor and circuit 103 and the difference between the design temperature.
When Digiplex 104 received a signal, buzzing circuit 106 produced the sound of an affirmation.Display circuit 20 demonstrates a running status of air-conditioner usually, and this circuit 20 is made up of a portable lamp, a dehumidifying lamp etc.A motor 107 that is used for vertical wind direction board (not shown) is set, so that drive the vertical wind direction board that is used to change the air-conditioner air supply direction.In addition, when situations such as use power supply, reset circuit 108 and reset signal to indoor control microcomputer 102 one of output.
Utilize DC power supply circuit to convert direct current signal to by the civil power alternating voltage that connection line 18 is delivered to outdoor unit 14, and deliver to back valve 5 on the one hand, deliver to the drive circuit 26 of outdoor fan motor 8 on the other hand by electromagnetic contactor 201 and power circuit 202.When compressor 1 running, electromagnetic contactor 201 is in 0N (connection) position, and when compressor 1 was shut down, it was in OFF (closing) position, thereby interrupts power supply.202 pairs of civil power alternating voltages of power circuit carry out rectification and filtering, to produce High Level DC Voltage.(PCC) power 103 is made up of the switch element of six bridge connections, and it is used to turn on and off DC voltage and this DC voltage is offered the motor 2 that is used for the drive compression machine.
Utilize back valve drive circuit 208 and fan motor drive circuit 209 and drive back valve 5 and fan motor 8 according to the instruction of outdoor control microcomputer 204.
The temperature of the temperature of thermosensitive resistor and circuit 210 sensing chamber's outer heat-exchangers 4, outside air temperature, compressor 1 or similar temperature, outdoor control microcomputer 204 are controlled the rotating speed of compressors 1 etc. by drive circuit 206.
Display circuit 211 is when transmission is unusual, as demonstrate the factor of running status and termination under the situation of tripping operation or demonstration fault.
The civil power alternating voltage is applied on the DC power supply circuit 12 of outdoor unit 14.In DC power supply circuit 12, form as supply voltage and impose on the DC voltage of indoor unit 13.In outdoor control circuit 11, utilize DC power supply circuit 12 or by be provided with one independently power circuit form the voltage utilized.
The DC voltage that forms in DC power supply circuit 12 imposes on indoor unit 13 by connection line 19.Indoor control circuit power supply 109 forms the supply voltage that is applied to indoor control circuit 10, and this voltage comes from the DC voltage that outdoor unit 14 provides.
Indoor fan motor drive circuit 110 is formed for the voltage of drive chamber's internal fan motor 7, and this voltage comes from the DC voltage that outdoor unit 14 provides.DC Brushless Motor is applied to indoor fan motor 7, and by can control the air quantity of indoor fan motor 7 according to the instruction control driving voltage of indoor control microcomputer 102.In addition, when overcurrent supply chamber internal fan motor 7, indoor fan motor drive circuit 110 transmits a signal to indoor control microcomputer 102, so that indoor control microcomputer 102 stops the running of indoor fan motor 7.
Can realize transmission between indoor control microcomputer 102 and the outdoor control microcomputer 204 by modulation-demodulation circuit 17-a and 17-b and connection line 19.Modulation-demodulation circuit 17 1 a are connected on the connection line 19, and by being added on the DC voltage according to transmitting signal from the transmission signal of indoor control microcomputer 102 outputs with the method for the DC voltage of high-frequency signal modulation connection line 19.Modulation-demodulation circuit 17-b also is input to this signal the outdoor control microcomputer 204 from the DC voltage high-frequency signal of connection line 19.Pass to the transmission of indoor control microcomputer 102 from outdoor control microcomputer 204 with regard to having realized like this.
Owing to utilize above-mentioned transmission method can not carry out bi-directional simultaneously, carry out selectively so transmit.Content transmitted is the instruction of ON-OFF (switch) signal, rotation frequency signal and the relevant fan motor 8 etc. of compressor 1.In addition, also transmit information such as tripping operation factor such as outdoor temperature and outdoor unit 14.
Transmission is to become predetermined unit (being 8 bits in the present embodiment) to carry out by above-mentioned data decomposition.A start bit and position of rest be added in each 8 Bit data go and say on the whole also to comprise a leader.Transmission is to carry out continuously mutually, but when transmit interrupting or can not correctly be read out when waiting when said memory cells (position), the judgement transmission unusually.
The leader that transmits belongs to outdoor control circuit 11, and being judged by outdoor control circuit 11 unusually of transmitting.Transmit and to be divided into two kinds of situations unusually, though a kind of be from outdoor control circuit 11 when indoor control circuit 10 transmits also not from the reaction of indoor control circuit 10, another kind is to receive wrong data from indoor control circuit 10.In the previous case, shown in Figure 16 A, when the reaction of indoor control circuit 10, then judge in the given time and transmit unusually, and under latter event, shown in Figure 16 B, the data that detect to receive are correct or wrong, when error in data, judge then transmit unusual.Whether show normal waveform according to start bit, position of rest and leader, or according to the existence of this misdata of decidable such as whether parity bit consistent with each other.In this case, when at the fixed time or occur cycle of misdata in the longer time continuously, or when the frequency of misdata is on preset frequency or higher frequency then the decidable data be wrong.
When occurring transmitting fault continuously at the fixed time or in the preset frequency, and though any situation then in two kinds of situations all judge transmit unusual.
As mentioned above, the present invention moves indoor unit under low dc source voltage. Therefore, Large-sized high voltage component becomes unnecessary, and in the driving of indoor fan motor In the circuit danger overheated and on fire can not appear. So, needn't use sheet-steel cover as mistake Therefore protection when hot and on fire can make the size of indoor electric parts do littlelyr. In addition, Because the electromagnetic valve coil of the cold-producing medium back valve of indoor unit and outdoor fan motor are sharp Handle with direct current, so can use photocell power generator (solar cell) class DC current will it not be transformed into AC power, and owing to uses brushless motor as wind The fan motor is so can specify high frequency as frequency of utilization. In addition, when outdoor unit The devices such as fan motor are when being driven by low-voltage dc power supply, its effect certainly with indoor list The effect of unit is similar. In addition, according to the present invention, indoor unit and outdoor unit all are to utilize directly The operation of stream power supply, can use identical air-conditioner, internal circuit needn't be changed and apparatus can be made The element that the various AC powers of different electrical power voltage and frequency are arranged.
In addition, according to the present invention, because the amplitude of the amplitude ratio DC voltage of transmit information signals Little, so even send transmit information signals and the DC voltage that simultaneously it is added on the time, The power supply that offers indoor unit can not reduce yet. Therefore, can will be arranged in the outdoor unit The size of DC power supply circuit do littlelyr. In addition, owing to do not reduce to offer indoor list The power supply of unit reduces so can prevent the air output of indoor fan motor.
In addition, according to the present invention, because can fault is aobvious when abnormality appears in transfer circuit Illustrate, so can process this fault by modes such as repairings at short notice.
According to the present invention, can interrupt owing to offer the power supply of indoor unit, therefore can be to indoor The unit carries out electric protection, is subjected to the destruction of fault to prevent it.
In addition, according to the present invention, can not destroy indoor even connection error appears in connection line yet Control circuit because above-mentioned protective device is arranged, reduces the capacity of DC power supply circuit, with Shi Buhui reduces and consumes dc source voltage, but also can reduce the temperature of indoor control circuit Rise.
Claims (19)
1. air-conditioner is characterized in that it comprises:
At least one indoor unit, it is provided with the electric component that comprises an indoor control circuit and an indoor fan motor;
An outdoor unit, it is provided with and comprises that an outdoor control circuit, one are used for the electric component of second DC power supply circuit that first DC power supply circuit of drive compression machine, outdoor fan motor, cold-producing medium back valve and are used for the described electric component of described indoor unit; And
A connection line, it is located between described indoor unit and the described outdoor unit, is used for providing to the electric component of described indoor unit the output voltage of described second DC power supply circuit;
Wherein said outdoor fan motor has a DC Brushless Motor, and described first DC power supply circuit is also as the power supply that drives described brushless motor, and described second DC power supply circuit also is used as the power supply of described cold-producing medium back valve.
2. according to the air-conditioner of claim 1, it is characterized in that described outdoor unit comprises:
An oscillating circuit, one of its output are recently from the higher frequency signal of frequency of the transmission signal of described outdoor control circuit; And
One first modulation-demodulation circuit is used to be used to modulate from the transmission signal of described outdoor control circuit the output signal of described oscillating circuit, and utilizes the DC voltage of modulating described connection line by the signal of modulating the conduct transmission signal that obtains,
Described indoor unit comprises:
An oscillating circuit, one of its output are recently from the higher frequency signal of frequency of the transmission signal of described indoor control circuit; And
One second modulation-demodulation circuit is used to be used to modulate from the transmission signal of described indoor control circuit the output signal of described oscillating circuit, and the signal that utilizes the conduct that obtains by modulation to transmit signal is modulated the DC voltage of described connection line;
The wherein said first modulation-demodulation circuit demodulation also offers described outdoor control circuit with this signal from the transmission signal of described second modulation-demodulation circuit, the described second modulation-demodulation circuit demodulation is from the transmission signal of described first modulation-demodulation circuit and this signal is offered indoor control circuit, thereby can realize information transmission between described outdoor control circuit and the described indoor control circuit by described connection line.
3. according to the air-conditioner of claim 1, it is characterized in that modulation-demodulation circuit is arranged in each described indoor unit and the described outdoor unit, and be connected on the described connection line, so that between described indoor unit and described outdoor unit, carry out the transmission of information signal by described connection line; The feature of described air-conditioner is that it also further comprises:
Be used to judge that to transmit circuit unusual and when owing to produce and make described air-conditioner device out of service when the transmission mistake stops the transmission of the information signal between described indoor unit and the described outdoor unit in preset time cycle or longer time cycle; And
Be used for showing out of order device according to the unusual judgement of the transmission that utilizes described device to make.
4. according to the air-conditioner of claim 1, it is characterized in that modulation-demodulation circuit is arranged in each described indoor unit and the described outdoor unit, and be connected on the described connection line, so that carry out the transmission of information signal by described connection line between described indoor unit and described outdoor unit, described air-conditioner also further comprises:
Be used to judge that to transmit circuit unusual and when owing to produce and make described air-conditioner device out of service when the transmission mistake stops the transmission of the information signal between described indoor unit and the described outdoor unit in preset time cycle or longer time cycle; And
Be used for the unusual judgement of transmission made according to described device, the device of described DC voltage is provided providing to described indoor unit by described connection line.
5. according to the air-conditioner of claim 1, it comprises that also the described indoor control circuit that is used to protect described indoor unit is not subjected to the device of damage of the incorrect link of described connection line.
6. according to the air-conditioner of claim 1, it is characterized in that described first DC power supply circuit comprises the paraphase power supply of an input mains supply.
7. according to the air-conditioner of claim 1, it is characterized in that described second DC power supply circuit comprises the Switching Power Supply of an input mains supply.
8. according to the air-conditioner of claim 1, it is characterized in that described second DC power supply circuit comprises the power supply of the input mains supply of a series connection.
9. according to the air-conditioner of claim 1, it is characterized in that described second DC power supply circuit comprises that the direct current of output voltage of described first DC power supply circuit of input is to direct current transducer.
10. air-conditioner, it comprises:
At least one indoor unit, it is provided with the electric component that comprises an indoor control circuit and an indoor fan motor;
An outdoor unit, it is provided with and comprises that an outdoor control circuit, one are used for the electric component of second DC power supply circuit that first dc source electricity circuit of drive compression machine, outdoor fan motor, cold-producing medium back valve and are used for the described electric component of described indoor unit; And
A connection line, it is located between described indoor unit and the described outdoor unit, is used for providing to the electric component of described indoor unit the output voltage of described second DC power supply circuit;
The structure of wherein said air-conditioner can make and receive city's electric energy in its any one unit from described indoor unit and outdoor unit.
11. the air-conditioner according to claim 10 is characterized in that:
Described indoor unit comprises the receiving system that is used to receive described city electric energy and is used to export the output device of city's electric energy of described reception; And
Described outdoor unit has the receiving system that another one is used to receive described city electric energy, so that can select a unit as the unit that receives described city electric energy from described indoor unit and described outdoor unit arbitrarily;
Wherein, when selecting indoor unit, provide described city electric energy to described outdoor unit by the output device of described indoor unit and the power source receiving apparatus of described outdoor unit.
12., it is characterized in that described outdoor unit comprises according to the air-conditioner of claim 10:
An oscillating circuit, one of its output are recently from the higher frequency signal of frequency of the transmission signal of described outdoor control circuit; And
One first modulation-demodulation circuit is used to be used to modulate from the transmission signal of described outdoor control circuit the output signal of described oscillating circuit, and utilizes the DC voltage of modulating described connection line by the signal of modulating the conduct transmission signal that obtains,
Described indoor unit comprises:
An oscillating circuit, one of its output are recently from the higher frequency signal of frequency of the transmission signal of described indoor control circuit; And
One second modulation-demodulation circuit is used to be used to modulate from the transmission signal of described indoor control circuit the output signal of described oscillating circuit, and the signal that utilizes the conduct that obtains by modulation to transmit signal is modulated the DC voltage of described connection line;
The wherein said first modulation-demodulation circuit demodulation also offers described outdoor control circuit with this signal from the transmission signal of described second modulation-demodulation circuit, the described second modulation-demodulation circuit demodulation is from the transmission signal of described first modulation-demodulation circuit and this signal is offered indoor control circuit, thereby can realize information transmission between described outdoor control circuit and the described indoor control circuit by described connection line.
13. air-conditioner according to claim 10, it is characterized in that modulation-demodulation circuit is arranged in each described indoor unit and the described outdoor unit, and be connected on the described connection line, so that between described indoor unit and described outdoor unit, carry out the transmission of information signal by described connection line; The feature of described air-conditioner is that it also further comprises:
Be used to judge that to transmit circuit unusual and when owing to produce and make described air-conditioner device out of service when the transmission mistake stops the transmission of the information signal between described indoor unit and the described outdoor unit in preset time cycle or longer time cycle; And
Be used for showing out of order device according to the unusual judgement of the transmission that utilizes described device to make.
14. air-conditioner according to claim 10, it is characterized in that modulation-demodulation circuit is arranged in each described indoor unit and the described outdoor unit, and be connected on the described connection line, so that carry out the transmission of information signal by described connection line between described indoor unit and described outdoor unit, described air-conditioner also further comprises:
Be used to judge that to transmit circuit unusual and when owing to produce and make described air-conditioner device out of service when the transmission mistake stops the transmission of the information signal between described indoor unit and the described outdoor unit in preset time cycle or longer time cycle; And
Be used for the unusual judgement of transmission made according to described device, the device of described DC voltage is provided providing to described indoor unit by described connection line.
15. according to the air-conditioner of claim 10, it comprises that also the described indoor control circuit that is used to protect described indoor unit is not subjected to the device of damage of the incorrect link of described connection line.
16., it is characterized in that described first DC power supply circuit comprises the paraphase power supply of an input mains supply according to the air-conditioner of claim 10.
17., it is characterized in that described second DC power supply circuit comprises the Switching Power Supply of an input mains supply according to the air-conditioner of claim 10.
18., it is characterized in that described second DC power supply circuit comprises the power supply of the input mains supply of a series connection according to the air-conditioner of claim 10.
19., it is characterized in that described second DC power supply circuit comprises that the direct current of output voltage of described first DC power supply circuit of input is to direct current transducer according to the air-conditioner of claim 10.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6220190A JPH0886499A (en) | 1994-09-14 | 1994-09-14 | Air conditioner |
| JP220190/94 | 1994-09-14 | ||
| JP220190/1994 | 1994-09-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1123391A true CN1123391A (en) | 1996-05-29 |
| CN1068426C CN1068426C (en) | 2001-07-11 |
Family
ID=16747298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95117779 Expired - Fee Related CN1068426C (en) | 1994-09-14 | 1995-09-14 | Air conditioner |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH0886499A (en) |
| CN (1) | CN1068426C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1325845C (en) * | 2003-08-27 | 2007-07-11 | 松下电器产业株式会社 | Split-type air-conditioner |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4007402B2 (en) * | 2006-02-02 | 2007-11-14 | ダイキン工業株式会社 | Air conditioner outdoor unit and control method thereof |
| JP5582989B2 (en) * | 2010-12-07 | 2014-09-03 | 三菱電機株式会社 | Air conditioner |
| CN102252374A (en) * | 2011-06-30 | 2011-11-23 | 吴尚 | Air conditioner and air-conditioning system |
| CN104219816B (en) * | 2013-05-30 | 2017-02-08 | 海洋王（东莞）照明科技有限公司 | lamp overheating protection circuit and lamp |
| MY182372A (en) * | 2015-02-11 | 2021-01-21 | Panasonic Appliances Air Conditioning R&D Malaysia Sdn Bhd | Reduced power consumption in air conditioners |
| WO2016135925A1 (en) * | 2015-02-26 | 2016-09-01 | 三菱電機株式会社 | Refrigeration cycle device |
-
1994
- 1994-09-14 JP JP6220190A patent/JPH0886499A/en active Pending
-
1995
- 1995-09-14 CN CN 95117779 patent/CN1068426C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1325845C (en) * | 2003-08-27 | 2007-07-11 | 松下电器产业株式会社 | Split-type air-conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1068426C (en) | 2001-07-11 |
| JPH0886499A (en) | 1996-04-02 |
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