CN104101033B - Air conditioner - Google Patents

Air conditioner Download PDF

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Publication number
CN104101033B
CN104101033B CN201410130227.8A CN201410130227A CN104101033B CN 104101033 B CN104101033 B CN 104101033B CN 201410130227 A CN201410130227 A CN 201410130227A CN 104101033 B CN104101033 B CN 104101033B
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CN
China
Prior art keywords
relay
outdoor
power supply
supply
inrush current
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Active
Application number
CN201410130227.8A
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Chinese (zh)
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CN104101033A (en
Inventor
杉崎纪彦
岩田征彦
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Publication of CN104101033A publication Critical patent/CN104101033A/en
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Publication of CN104101033B publication Critical patent/CN104101033B/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Abstract

Provided is an air conditioner capable of reducing reactive power consumed by an outdoor unit in the case that an indoor unit is operating and the outdoor unit is standby. The air conditioner comprises the indoor unit and the outdoor unit, wherein the indoor unit and the outdoor unit are connected through three core wires, i.e., a power wire, a power supply signal shared wire and a signal wire, electric power supplied from a commercial power supply to one of the outdoor unit or the indoor unit is supplied to the other one through the power wire and the power supply signal shared wire, the outdoor unit has an inrush-current-preventing relay for opening and closing connection between the commercial power supply and an outdoor rectification part used for an outdoor control part, an outdoor relay, an inrush-current-preventing relay for opening and closing connection between the commercial power supply and an outdoor rectification part used for an inverter circuit, and an outdoor relay, a noise filter is arranged closer to the outdoor rectification part than the inrush-current-preventing relay and the outdoor relay.

Description

Air conditioner
Technical field
The present invention relates to air conditioner.
Background technology
In the past, in air conditioner, even if when operating standby, indoor set and off-premises station are also always communicated, indoor set It is consumed with the electric power of off-premises station.Therefore, Patent Document 1 discloses following technology following:By the profit when operating standby Use outdoor starter relay(relay)Disconnect power line and holding wire, not to supplier's electricity consumption between holding wire and bridging line Source and reduce stand-by electric.
【Patent document 1】Japanese Unexamined Patent Publication 2010-243051 publications
The content of the invention
But, according to above-mentioned conventional technology, there is machine indoors and in the case that off-premises station is communicated, by off-premises station Noise filter(noise filter)Consume problem as inefficient power.Additionally, there are the position due to noise filter Put, even if also consuming problem as inefficient power when the operating for being communicated is standby.
The present invention be in view of above-mentioned and complete, its object is to obtain one kind can cut down indoors machine in operating and Off-premises station be it is standby in the case of by off-premises station consume inefficient power air conditioner.
In order to solve above-mentioned problem and reached purpose, the present invention provides a kind of air conditioner, possesses indoor set and off-premises station, The indoor set and the off-premises station by this 3 heart yearn connection of power line, bridging line and holding wire, will to the off-premises station or The electric power from source power supply of some supply in indoor set described in person is via the power line and bridging line to another Side's power supply, it is characterised in that the off-premises station possesses:1st power supply supplies relay, makes the source power supply with outdoor control unit The connection opening and closing of rectification part outside Room 1st;And the 2nd power supply supply relay, make the source power supply and inverter circuit Outside Room 2nd rectification part connection opening and closing, by inverter circuit with noise filter configure than the 2nd power supply supply after Electrical equipment is closer to rectification part side outside the Room the 2nd.
According to the present invention, play can cut down indoors machine in operating and off-premises station in the case of in standby by outdoor Effect as the inefficient power that machine is consumed.
Description of the drawings
Fig. 1 be air conditioner it is standby when electronic system block diagram.
Electronic system block diagram when Fig. 2 is the indoor set of 1 air conditioner of starting.
Electronic system block diagram when Fig. 3 is the indoor set of 1 air conditioner of operating.
Fig. 4 is the flow chart of the action for illustrating indoor set.
Fig. 5 is the flow chart of the action for illustrating off-premises station.
【Symbol description】
1:Air conditioner;2:Indoor set A;3:Indoor set B;4:Off-premises station;5:Indoor rectification part;6:Room control unit;7:Room Interior communication circuit section;8:Electric means data portion;9:Acceptance division;10:Remote control;11:Outdoor power supply lines;12:It is outdoor Starter relay;13:Source power supply;14:Power line;15:Power supply signal bridging line;16:Holding wire;17:Prevent inrush current Relay A;18:Prevent inrush current relay B;19:Prevent inrush current resistance A;20:Prevent inrush current resistance B;21: Outdoor relay A;22:Outdoor relay B;23:Noise filter;24:Outdoor rectification part A;25:Outdoor rectification part B;26:Electricity Container A;27:Capacitor B;28:Inverter circuit;29:Outdoor control unit;30:Telecommunication circuit power supply unit;31:Outdoor communication electricity Road portion;32:Prevent inrush current relay coil;33:Diode;34:Cut off the electricity supply supply relay A;35:Cut off the electricity supply confession Give relay B;36:Indoor terminal board;37:Outdoor terminal board.
Specific embodiment
Hereinafter, with reference to the accompanying drawings, the embodiment of the air conditioner of the present invention is described in detail.In addition, the invention is not restricted to the reality Apply mode.
Embodiment.
Fig. 1 is the electronic system block diagram of the air conditioner in present embodiment.
As shown in figure 1, in the present embodiment, air conditioner 1 possesses multiple indoor sets.
Hereinafter, illustrate to be provided with indoor set A2 and B3 this 2 situation.
In addition, the number of units not limited to this of indoor set, or more than 2.
Indoor set A2 and B3 and off-premises station 4 pass through respectively power line 14, power supply signal bridging line 15 and holding wire 16 Connection.
In the outdoor terminal board 37 of off-premises station 4, with indoor set A2 and B3 accordingly, respectively possess terminal S1, S2, S3。
Terminal L, N connection source power supply 13 to the outdoor terminal board 37 of off-premises station 4.
The terminal L of outdoor terminal board 37 is connected with the terminal S1 of the outdoor terminal board 37.
The terminal N of outdoor terminal board 37 is connected with the terminal S2 of the outdoor terminal board 37.
Thus, the electric power from source power supply 13 that terminal L, N of outdoor terminal board 37 will be supplied, from outdoor terminal board 37 terminal S1, S2 is supplied to the indoor terminal of indoor set A2 and B3 via power line 14 and power supply signal bridging line 15 Terminal S1, S2 of platform 36.
In addition, off-premises station 4 accordingly possesses outdoor communication circuit portion 31 with the quantity of the indoor set being connected.
The respective one end in each outdoor communication circuit portion 31 is connected with telecommunication circuit power supply unit 30, the other end be connected with The terminal S3 connections of the holding wire 16 of the corresponding indoor set in outdoor communication circuit portion 31.
In addition, off-premises station 4 accordingly possesses diode with the quantity of the indoor set being connected(diode)33 and cut-out electricity Source supplies relay(Cut off the electricity supply supply relay A34 and B35 herein).
Respectively cut off the electricity supply supply relay A34 and B35 respective one end via diode 33 with prevent inrush current Relay coil(relaycoil)32 connection, the other end be connected with and the corresponding indoor set in outdoor communication circuit portion 31 The terminal S3 connections of holding wire 16.
By be situated between have diode 33 be prevented from from just action indoor set to operate standby indoor set apply The impact for other indoor sets such as voltage.Thus, in air conditioner 1, even if in the case where multiple indoor sets are connected to, Stand-by electric can safely be reduced.
Indoor set A2 and B3 possess indoor rectification part 5, room control unit 6, indoor communications circuit portion 7, electric means number According to portion 8, acceptance division 9, outdoor power supply lines(line)11 and outdoor starter relay 12.
Indoor rectification part 5 is connected with terminal S1, S2 of indoor terminal board 36.Indoor rectification part 5 is transformed to alternating voltage Arbitrary DC voltage, is supplied to room control unit 6.
Indoor communications circuit portion 7 is connected with terminal S2, S3 of indoor terminal board 36.Indoor communications circuit portion 7 is via signal Line 16 and power supply signal bridging line 15, in the outdoor communication circuit portion 31 with off-premises station 4(It is aftermentioned)Between communicated.
Electric means data(data)Portion 8 is connected with room control unit 6.Electric means data portion 8 constitutes such as storage dress Put or switch(switch)(It is not shown)Etc. switchable unit, the ON/ by the identification switch when power supply rises is stored OFF is so as to recognizing the information of indoor electric means and outdoor electric means.
In addition, the off-premises station 4 being connected with indoor set A2 and B3 has outdoor relay A21 and B22(It is aftermentioned)With Prevent inrush current relay A17 and B18(It is aftermentioned), in electric means data portion 8, storage identifies whether to cut down The information of the off-premises station 4 of stand-by electric when operating standby(Hereinafter referred to as " stand-by electric corresponding informance ").
Acceptance division 9 is connected with room control unit 6.Acceptance division 9 is received from remote control(remote controller)10 Signal, to room control unit 6 signal is sent.
Room control unit 6 makes the action of outdoor starter relay 12.In addition, room control unit 6 moves indoor communications circuit portion 7 Make, send between off-premises station 4 and receive various CRANK PULSES etc..
One end of outdoor power supply lines 11 be connected with the terminal S1 of indoor terminal board 36, the other end and outdoor starting after Electrical equipment 12 connects.
The terminal S3 of the switching chamber inner terminal platform 36 of outdoor starter relay 12 and the connection in indoor communications circuit portion 7 or The terminal S3 of indoor terminal board 36 and the connection of outdoor power supply lines 11.
That is, outdoor starter relay 12 makes power line 14 be opened and closed with the connection of holding wire 16.In the outdoor starter relay During 12 actions, to supplying the electric power from source power supply 13 between holding wire 16 and power supply signal bridging line 15.
When stablizing, the terminal S3 of junction chamber inner terminal platform 36 and indoor communications circuit portion 7 lead to outdoor starter relay 12 The action from room control unit 6 is crossed, the terminal S3 of indoor terminal board 36 is disconnected with the connection in indoor communications circuit portion 7, even Meet the terminal S3 and outdoor power supply lines 11 of indoor terminal board 36.
In addition, though it is not shown, indoors in machine A2 and B3, as mechanical system, it is provided with indoor heat converter, room Internal fan(fan), sensor(sensor), display etc..
Off-premises station 4 possesses to be prevented inrush current relay A17 and B18, prevents inrush current resistance A19 and B20, room Outer relay A21 and B22, noise filter 23, outdoor rectification part A24 and B25, capacitor(capacitor)A26 and B27, inverter circuit 28, outdoor control unit 29, telecommunication circuit power supply unit 30, outdoor communication circuit portion 31, prevent inrush current Relay coil 32, diode 33 and cut off the electricity supply supply relay A34 and B35.
One end of inrush current relay A17 is prevented to be connected with the terminal L of outdoor terminal board 37, the other end is via preventing from dashing forward Enter current resistor A19 to be connected with noise filter 23.Prevent inrush current relay A17 from being with outdoor relay A21 in parallel Arrange.
Prevent inrush current relay A17 breaks when operating standby(It is normally opened(normal open)), by from The action of outdoor control unit 29, circuit-closing contacts.Make to prevent short between the terminal L of inrush current resistance A19 and outdoor terminal board 37 Road.
One end of inrush current relay B18 is prevented to be connected with the terminal L of outdoor terminal board 37, the other end is via preventing from dashing forward Enter current resistor B20 to be connected with outdoor rectification part B25.Prevent inrush current relay B18 from being with outdoor relay B22 in parallel Arrange.
Prevent inrush current relay B18 breaks when operating standby(It is normally opened)If preventing inrush current relay Device coil 32 is energized, then circuit-closing contacts(Below it is also known as " short circuit "), via inrush current resistance B20 is prevented outdoor rectification is made Short circuit between the terminal L of portion B25 and outdoor terminal board 37.
That is, inrush current relay coil 32 is prevented to supplying to give business between holding wire 16 and power supply signal bridging line 15 During with the electric power of power supply 13, closure prevents inrush current relay B18.
Prevent inrush current resistance A19 from arranging in parallel with outdoor relay A21.Prevent the one of inrush current resistance A19 Hold via prevent inrush current relay A17 with outdoor terminal board 37 terminal L be connected.In addition, the other end and noise filter 23 connections.
Prevent inrush current resistance A19 from suppressing the inrush current to capacitor A26.
Prevent inrush current resistance B20 from arranging in parallel with outdoor relay B22.Prevent the one of inrush current resistance B20 Hold via prevent inrush current relay B18 with outdoor terminal board 37 terminal L be connected.In addition, the other end and outdoor rectification part B25 connects.
Prevent inrush current resistance B20 from suppressing the inrush current to capacitor B27.
One end of outdoor relay A21 is connected with the terminal L of outdoor terminal board 37, and the other end connects with noise filter 23 Connect.
Outdoor relay A21 breaks when operating standby(It is normally opened), by the action from outdoor control unit 29, close Splice grafting point.
One end of outdoor relay B22 is connected with the terminal L of outdoor terminal board 37, and the other end connects with outdoor rectification part B25 Connect.
Outdoor relay B22 breaks when operating standby(It is normally opened), by the action from outdoor control unit 29, close Splice grafting point.
Noise filter 23 is via preventing inrush current relay A17 and prevent inrush current resistance A19 or outdoor Relay A21, is connected with the terminal L of outdoor terminal board 37.In addition, noise filter 23 connects with the terminal N of outdoor terminal board 37 Connect.
Outdoor rectification part A24 is via preventing inrush current relay A17 and prevent inrush current resistance A19 or room Outer relay A21 and noise filter 23, are connected with the terminal L of outdoor terminal board 37.In addition, outdoor rectification part A24 via Noise filter 23 is connected with the terminal N of outdoor terminal board 37.
The alternating voltage supplied from source power supply 13 is transformed to arbitrary DC voltage by outdoor rectification part A24, is supplied to Capacitor A26 and inverter circuit 28.
Outdoor rectification part B25 is via preventing inrush current relay B18 and prevent inrush current resistance B20 or room Outer relay B22, is connected with the terminal L of outdoor terminal board 37.In addition, the terminal N of outdoor rectification part B25 and outdoor terminal board 37 Connection.
The alternating voltage supplied from source power supply 13 is transformed to arbitrary DC voltage by outdoor rectification part B25, is supplied to Capacitor B27 and outdoor control unit 29.
Capacitor A26 is arranged between the output of outdoor rectification part A24, and the output to outdoor rectification part A24 is smoothed Change, to inverter circuit 28 DC voltage is supplied.
Capacitor B27 is arranged between the output of outdoor rectification part B25, and the output to outdoor rectification part B25 is smoothed Change, to outdoor control unit 29 DC voltage is supplied.
Inverter circuit 28 by the DC voltage conversion for being supplied be optional frequency, free voltage alternating voltage.In addition, Connect such as motor etc. to inverter circuit 28, drive compressor of setting etc. in off-premises station 4.
Outdoor control unit 29 makes outdoor relay B22 and supply relay A34, B35 action of cutting off the electricity supply.In addition, room Outer control portion 29 makes the action of outdoor communication circuit portion 31, sends between indoor set A2 and B3 and receives various CRANK PULSES Deng.
In addition, the outdoor control of control unit 29 prevents inrush current relay A17, outdoor relay A21 and inverter electricity Road 28.
One end of telecommunication circuit power supply unit 30 is connected between outdoor relay B22 and outdoor rectification part B25, via preventing Inrush current relay B18 and prevent inrush current resistance B20 or outdoor relay B22, the end with outdoor terminal board 37 Sub- L connections.In addition, the other end is connected with the terminal S2 of outdoor terminal board 37.
The alternating voltage supplied from source power supply 13 is transformed to arbitrary DC voltage and is supplied by telecommunication circuit power supply unit 30 It is given to outdoor communication circuit portion 31.Telecommunication circuit power supply unit 30 is made up of such as half-wave rectifying circuit.
The one end in outdoor communication circuit portion 31 be connected with the terminal S3 of outdoor terminal board 37, the other end and telecommunication circuit power supply Portion 30 connects.In addition, outdoor communication circuit portion 31 is via holding wire 16 and power supply signal bridging line 15, with indoor set A2 and Communicated between the indoor communications circuit portion 7 of B3.
The one end for preventing inrush current relay coil 32 is connected with the terminal S2 of outdoor terminal board 37, and the other end is via two Pole pipe 33, cut off the electricity supply supply relay A34(Or B35)It is connected with the terminal S3 of outdoor terminal board 37.
If be powered, prevent the closure of inrush current relay coil 32 from preventing the contact of inrush current relay B18.
One end of diode 33 is connected with inrush current relay coil 32 is prevented, the other end and supply relay of cutting off the electricity supply Device A34 and B35 connect.
Diode 33 prevent from just action indoor set to the indoor set applied voltage that operates standby.
Cut off the electricity supply supply relay A34 and B35 one end via diode 33 with prevent inrush current relay line Circle 32 connects, and the other end is connected with the terminal S3 of outdoor terminal board 37.
Cut off the electricity supply and supply relay A34 and B35 circuit-closing contacts when operating standby(It is normally closed(normal close)), By the action from outdoor control unit 29, contact is set to disconnect and cut off to the energization for preventing inrush current relay coil 32.
In addition, though it is not shown, as mechanical system in off-premises station 4, it is provided with outdoor heat converter, outdoor fan and passes Sensor(fansensor), electromagnetic expanding valve, cold-producing medium switching valve, compressor.
In addition, power supply signal bridging line 15 equivalent to the present invention in " bridging line ".
In addition, " the 1st power supply confession in preventing inrush current relay B18 and outdoor relay B22 equivalent to the present invention To relay ".
In addition, prevent inrush current relay B18 and outdoor relay B22 be respectively equivalent in the present invention " the 1st prevent Only inrush current relay ", " relay outside Room the 1st ".
In addition, " the 2nd power supply confession in preventing inrush current relay A17 and outdoor relay A21 equivalent to the present invention To relay ".
In addition, prevent inrush current relay A17 and outdoor relay A21 be respectively equivalent in the present invention " the 2nd prevent Only inrush current relay ", " relay outside Room the 2nd ".
In addition, " the power supply supply Control portion " in preventing inrush current relay coil 32 equivalent to the present invention.
In addition, diode 33 equivalent to the present invention in " rectifier ".
This concludes the description of the structure of air conditioner 1.
Next, the action of explanation air conditioner 1.
<Action>
First, the supply of electric power when illustrating that the operating of air conditioner 1 is standby.
Terminal S1, S2 to the indoor terminal board 36 of indoor set A2 and B3, from terminal S1, S2 Jing of outdoor terminal board 37 By power line 14 and power supply signal bridging line 15, supply that terminal L, N to outdoor terminal board 37 supply from source power supply 13 electric power.
Then, the electricity of the source power supply 13 that terminal S1, S2 to indoor terminal board 36 are supplied is input into each indoor rectification part 5 Power.
The alternating voltage being input into is transformed to arbitrary DC voltage by indoor rectification part 5.Indoor rectification part 5 will be converted DC voltage be supplied to each structural portion of room control unit 6 and indoor set A2 and B3.
Room control unit 6 judges that the air conditioner 1 is that electricity side is received in interior according to the data stored in electric means data portion 8 Which in formula or outdoor electric means, when outdoor electric means is judged as YES, makes the control of outdoor starter relay 12 It is made for effectively.
In addition, room control unit 6 according in electric means data portion 8 store stand-by electric corresponding informance, judge with Whether the off-premises station 4 of indoor set A2 and B3 connections is the off-premises station 4 that can cut down stand-by electric when operating standby.
Outdoor starter relay 12 when stablizing, the terminal S3 of the indoor communication circuit section 7 of connection and indoor terminal board 36 with And outdoor communication circuit portion 31.
Thus, each indoor communications circuit portion 7 is connected via holding wire 16 with off-premises station 4, and becoming can communicate for off-premises station 4 State.
In addition now, room control unit 6 becomes from remote control 10 the operation start requirement for sending and receiving via acceptance division 9 The reception holding state of signal.
Prevent inrush current relay A17 and B18 and outdoor the relay A21 and B22 of off-premises station 4 is treated in operating Break during machine.
In addition now, each outdoor starter relay 12 of indoor set A2 and B3 makes terminal S3 and the room of indoor terminal board 36 The connection of external power supply lines 11 disconnects.
Therefore, between terminal S2, S3 of outdoor terminal board 37, the electric power from source power supply 13 is not supplied, is prevented Inrush current relay coil 32 is non-power status.
Therefore, even if supplying to give source power supply 13 to terminal L, N of the outdoor terminal board 37 of off-premises station 4, prevent from charging into electricity Current relay A17 and B18 and outdoor relay A21 and B22 also become off-state.
Therefore, operate it is standby when, to prevent inrush current relay A17 and B18 and outdoor relay A21 with And each structural portion of the downstream connection of B22 power supply supply be cut off, can reduce operate it is standby when off-premises station 4 consume treat Electro-mechanical force.
Next, the action during starting of the off-premises station of explanation air conditioner 1 and in operating.
Electronic system block diagram when Fig. 2 is the indoor set of 1 air conditioner of starting.
Electronic system block diagram when Fig. 3 is the indoor set of 1 air conditioner of operating.
Hereinafter, illustrate to start off-premises station in the case where only have sent operation start requirement from remote control 10 to indoor set A2 4 action.
If operation start requirement, the Jing of room control unit 6 of indoor set A2 are have sent to indoor set A2 from remote control 10 The operation start requirement is received by acceptance division 9.
First, the action of indoor set A2 is illustrated.Fig. 4 is the flow chart of the action for illustrating indoor set.In addition, Fig. 5 is to illustrate The flow chart of the action of off-premises station.According to each step of flow chart(STEP)Illustrate.
(STEP1)
Room control unit 6 receives operation start and requires via acceptance division 9 from remote control 10.
(STEP2)
Room control unit 6, with reference to the information of electric means data portion 8, is room in the data from electric means data portion 8 In the case of outer electric means, the action of indoor communications circuit portion 7 is made, make to start with the communication of off-premises station 4.
(STEP3)
Whether room control unit 6 judges the communication in the outdoor communication circuit portion 31 of indoor communications circuit portion 7 and off-premises station 4 Establish.
In the case that indoors communication circuit section 7 is established with the communication of off-premises station 4, STEP9 is entered into.
(STEP4)
On the other hand, in STEP3, in the case that indoor communications circuit portion 31 fails to establish with the communication of off-premises station 4, room Interior control unit 6 makes the action of outdoor starter relay 12(ON), make terminal S3 and the indoor communications circuit portion 7 of indoor terminal board 36 Connection disconnects, the terminal S3 and outdoor power supply lines 11 of junction chamber inner terminal platform 36.
Thus, to supplying the electric power from source power supply 13 between holding wire 16 and power supply signal bridging line 15.
(STEP5)
Room control unit 6 makes the action stipulated time of outdoor starter relay 12(With reference to Fig. 2).
The stipulated time is set as the time of the capacitor B27 charging charges for example to off-premises station 4(The n seconds).In addition, it is stipulated that Time not limited to this.
(STEP6)
Room control unit 6 makes the outdoor starter relay 12 after the action stipulated time of outdoor starter relay 12 is made Action stop(OFF), the terminal S3 of junction chamber inner terminal platform 36 and indoor communications circuit portion 7 make the end of indoor terminal board 36 The connection of sub- S3 and outdoor power supply lines 11 disconnects.
(STEP7)
Room control unit 6 makes the action of indoor communications circuit portion 7, makes to start with the communication of off-premises station 4.
Then, room control unit 6 judges again indoor communications circuit portion 7 with the outdoor communication circuit portion 31 of off-premises station 3 Whether communication is established.
(STEP8)
In the case that indoors communication circuit section 7 is established with the communication of off-premises station 4, indoor communications circuit portion 7 starts With the communication in the outdoor communication circuit portion 31 of off-premises station 4.
(STEP9)
Room control unit 6 is communicated via indoor communications circuit portion 7 with off-premises station 4, makes the air conditioner 1 carry out refrigeration fortune Turn or heating operation.
(STEP10)
On the other hand, in STEP7, in the case that indoor communications circuit portion 7 could not establish with the communication of off-premises station 4, room Interior control unit 6 makes again the action of indoor communications circuit portion 7, makes to start with the communication of off-premises station 4.
Then, room control unit 6 was judged during the stipulated time(The n seconds)It is interior, indoor communications circuit portion 7 and off-premises station 4 Communication whether establish.
(STEP11)
In STEP10, until through n second, the feelings that the communication with off-premises station 4 of indoor communications circuit portion 7 could not be established Under condition, room control unit 6 is judged as communication abnormality.
Next, with reference to Fig. 2 and Fig. 3, illustrating the action of off-premises station 4.
(STEP12)
If the outdoor starter relay 12 of indoor set A2 becomes ON, between holding wire 16 and power supply signal bridging line 15 For giving the electric power from source power supply 13, then to supply between the terminal S2 and S3 of the outdoor terminal board 37 of off-premises station 4 from The electric power of source power supply 13.
(STEP13)
If to, for giving the electric power from source power supply 13, preventing from dashing forward between the terminal S2 and S3 of outdoor terminal board 37 Enter current relay coil 32 to be energized via the supply relay A34 that cuts off the electricity supply, make to prevent inrush current relay B18 short-circuit (With reference to Fig. 2).
If preventing inrush current relay B18 to be shorted, the commercialization that will be supplied to terminal L, N of outdoor terminal board 37 Power supply 13 is supplied to outdoor rectification part B25 via preventing inrush current resistance B20.
The alternating voltage supplied from source power supply 13 is transformed to arbitrary DC voltage by outdoor rectification part B25, is supplied to Capacitor B27, outdoor control unit 29 and telecommunication circuit power supply unit 30.
The alternating voltage supplied from source power supply 13 is transformed to arbitrary DC voltage and is supplied by telecommunication circuit power supply unit 30 It is given to outdoor communication circuit portion 31.
(STEP14)
If outdoor control unit 29 is supplied with dc source from outdoor rectification part B25, make outdoor relay B22 short Road.
(STEP15)
Next, outdoor control unit 29 makes to cut off the electricity supply and supplying relay A34 actions and disconnecting contact.
(STEP16)
If the supply relay A34 that cuts off the electricity supply is disconnected, prevent inrush current relay coil 32 from becoming non-energized, Make to prevent inrush current relay B18 from disconnecting(With reference to Fig. 3).
Thus, in the operating of off-premises station 4, short circuit between terminal S2, S3 of outdoor terminal board 37 is prevented from, becomes energy Enough carry out the state in indoor communications circuit portion 7 and the communication in outdoor communication circuit portion 31.
(STEP17)
Next, outdoor control unit 29 makes all actions of outdoor communication circuit portion 31, and make and indoor set A2 or B3 Communication starts.
Each outdoor communication circuit portion 31 starts and corresponding indoor set via power supply signal bridging line 15 and holding wire 16 The communication in indoor communications circuit portion 7.
(STEP18)
Outdoor control unit 29 judges the indoor communications circuit portion 7 of each outdoor communication circuit portion 31 and corresponding indoor set Whether communication is established.
Outdoor control unit 29 until with indoor set A2 or B3 in the indoor communications circuit portion 7 of some communication establish Till, STEP17 repeatedly.
(STEP19)
Herein, because the indoor communications circuit portion 7 of indoor set A2 is just in action, thus be set to outdoor communication circuit portion 31, Establish with the communication in the indoor communications circuit portion 7 of indoor set A2.
In this case, off-premises station 4 starts the communication with indoor set A2.
(STEP20)
Outdoor control unit 29 makes to prevent inrush current relay A17 actions, and short-circuit.
The operation condition setting is the timing of the compressor action for making to be arranged in off-premises station 4(timing).In addition, action Condition not limited to this.
If preventing inrush current relay A17 to be shorted, the commercialization that will be supplied to terminal L, N of outdoor terminal board 37 Power supply 13, via inrush current resistance A19 is prevented noise filter 23 is supplied to.
Noise filter 23 eliminates the noise included from the alternating voltage of the supply of source power supply 13, to outdoor rectification part A24 supplies alternating voltage.
Outdoor rectification part A24 will eliminate noise by noise filter 23(noise)Alternating voltage be transformed to arbitrarily DC voltage, is supplied to capacitor A26 and inverter circuit 28.
(STEP21)
Outdoor control unit 29 makes outdoor relay A21 actions, and short-circuit.
The operation condition setting is the timing of certain electric charge of having charged in capacitor A26.In addition, operation condition is not limited In this.Thereby, it is possible to prevent inrush current to be flowed into capacitor A26.
(STEP22)
Outdoor control unit 29 makes to prevent the inrush current relay A17 action stipulated times.
The stipulated time is set as the time of such as charging charge in the capacitor A26 of off-premises station 4(The n seconds).In addition, rule Fix time not limited to this.
(STEP23)
Outdoor control unit 29 makes this prevent from charging into after making to prevent the inrush current relay A17 actions stipulated time The contact of electric current relay A17 disconnects.
(STEP24)
Outdoor control unit 29 is communicated via outdoor communication circuit portion 31 with indoor set A2, is made the air conditioner 1 Blowdown firing or heating operation.
Next, during illustrating that machine A2 indoors and off-premises station 4 operate, sending from remote control 10 to indoor set B3 Operation start require in the case of action.
If operation start requirement, the Jing of room control unit 6 of indoor set B3 are have sent to indoor set B3 from remote control 10 The operation start requirement is received by acceptance division 9.
After, by the action same with the STEP1~STEP3 of above-mentioned flow chart, carry out the indoor communications of indoor set B3 Circuit portion 7 establishes with the communication of off-premises station 4.
Herein, by above-mentioned action, off-premises station 4 has been the outdoor communication circuit portion being connected with indoor set B3 in operating 31 communication establishments repeatedly, so indoor set B3 and off-premises station 4 can establish communication.
Therefore, by the action same with the STEP3 and STEP9 of above-mentioned flow chart, the room control unit of indoor set B3 6 are communicated via indoor communications circuit portion 7 with off-premises station 4, make the air conditioner 1 carry out cooling operation or heating operation.
Next, explanation makes air conditioner 1 be transferred to the action of operating holding state.
In the same manner as above-mentioned action, each room control unit 6 receives the standby letter of operating from remote control 10 via acceptance division 9 Number.
The outdoor control unit 29 of off-premises station 4 receives operating standby signal via each outdoor communication circuit portion 31.
If outdoor control unit 29 receives operating standby signal from all indoor sets, make outdoor relay A21 and B22 actions, and disconnect contact.
Thus, terminal L, the N from outdoor terminal board 37 is for noise filter 23, outdoor rectification part B27 and communication electricity The power supply from source power supply 13 of road power supply unit 30 is stopped, to the confession of the dc source of each structural portion of off-premises station 4 To being also stopped.
By such action, above-mentioned operating holding state is transferred again into(With reference to Fig. 1).
<Effect>
As described above, in the present embodiment, even if in the case that indoors machine is multiple stage, making to prevent when operating standby Only inrush current relay A17 and B18 and outdoor relay A21 and B22 become off-state, and cutting needle is to off-premises station 4 The power supply from source power supply 13.In addition, by the way that inverter circuit 28 and outdoor control unit 29 are separated, via preventing Inrush current relay A17 and inrush current resistance A19 or outdoor relay A21 is prevented, connects noise filter 23, Inefficient power can be suppressed.Therefore, though indoors machine become operating in and off-premises station 4 become it is standby in the case of, also can It is enough to be separated by making inverter circuit 28 and outdoor control unit 29, and separate the line of the noise filter 23 of inverter circuit 28 Between the big capacitor A26 of electric capacity, even if so indoors machine is in operating and compressor stops and off-premises station 4 is the feelings in standby Under condition, it is also possible to suppress the consumption of the inefficient power caused by the noise filter 23 of inverter circuit 28.
In addition, being configured to separate inverter circuit 28 and outdoor control unit 29, first priming chamber outer control in off-premises station 4 Portion 29, outdoor control unit 29 controls the action of inverter circuit 28.In such manner, it is possible to SPM(intelligent power module)(IPM)Before applying busbar voltage, by starting control power supply IPM safely actions are made.
Even if in addition, in the case that indoors machine is multiple stage, by having diode 33 in the intermediary of off-premises station 4, being prevented from From just action indoor set to the indoor set applied voltage for operating standby, can safely reduce stand-by electric.
In addition, in the present embodiment, the situation for connecting multiple indoor sets, but not limited to this are illustrated.With regard to suppressing inverse The effect of the consumption of the inefficient power caused by the noise filter 23 of change device circuit 28, even if indoors machine is the situation of 1 Under, it is also possible to obtain same effect.
【Industrial applicability】
As described above, the reduction of air conditioner of the invention to power consumption is useful, power consumption when being particularly well-suited to standby Reduction.

Claims (6)

1. a kind of air conditioner, possesses indoor set and off-premises station, and the indoor set and the off-premises station pass through power line, power supply signal Bridging line and holding wire this 3 heart yearn connection, will to some supply in the off-premises station or the indoor set from The electric power of source power supply is powered via the power line and power supply signal bridging line to the opposing party, and the feature of the air conditioner exists In,
The off-premises station possesses:
1st power supply supplies relay, makes the connection opening and closing of the source power supply and rectification part outside Room the 1st of outdoor control unit; And
2nd power supply supplies relay, makes the connection opening and closing of the source power supply and rectification part outside Room the 2nd of inverter circuit,
Inverter circuit is configured with noise filter and is supplying relay closer to whole outside the Room the 2nd than the 2nd power supply Stream portion side.
2. air conditioner according to claim 1, it is characterised in that
The indoor set possesses:
Outdoor starter relay, makes the power line be opened and closed with the connection of the holding wire;And
Room control unit, makes the outdoor starter relay action, between the holding wire and the power supply signal bridging line The source power supply is supplied,
The off-premises station possesses when between the holding wire and the power supply signal bridging line for giving the source power supply, Make the power supply supply Control portion of the 1st power supply supply relay closure.
3. air conditioner according to claim 2, it is characterised in that
The off-premises station possesses makes the 2nd power supply supply actuating of relay, described commercial electricity of the control for inverter circuit The outdoor control unit of the supply in source.
4. air conditioner according to claim 3, it is characterised in that
The off-premises station possesses the supply relay of cutting off the electricity supply for cutting off the energization that Control portion is supplied to the power supply,
1st power supply supply relay of the off-premises station possesses:
1st prevents inrush current relay, is connected with preventing inrush current resistant series with the 1st, by the power supply supply after The energization in electrical equipment control portion carries out action;And
Relay outside Room 1st, prevents inrush current resistance and the described 1st prevents inrush current relay in parallel with the described 1st Ground connection, by the control of the outdoor control unit action is carried out,
The outdoor control unit closes the Room the 1st after the described 1st prevents the contact of inrush current relay to be closed The contact of outer relay, make it is described cut off the electricity supply the supply actuating of relay and break, cut off to the power supply and supply relay The energization of device control unit.
5. air conditioner according to claim 4, it is characterised in that
2nd power supply supply relay of the off-premises station possesses:
2nd prevents inrush current relay, is connected with preventing inrush current resistant series with the 2nd, by the outdoor control unit Control carry out action;And
Relay outside Room 2nd, prevents inrush current resistance and the described 2nd prevents inrush current relay in parallel with the described 2nd Ground connection, by the control of the outdoor control unit action is carried out,
After relay is powered outside using the Room the 1st, control the described 2nd prevents inrush current to the outdoor control unit The action of relay outside relay and the Room the 2nd.
6. the air conditioner described in any one in claim 2~5, it is characterised in that
In the case where possessing multiple indoor sets,
The off-premises station possesses cut off the electricity supply supply relay, the rectifier of quantity corresponding with the quantity of the plurality of indoor set And outdoor communication circuit portion,
The supply relay of cutting off the electricity supply for each indoor set, be configured at the holding wire and the power supply signal bridging line it Between, cut off from the holding wire to the energization of the power supply signal bridging line,
The rectifier carries out the energization from the holding wire to the power supply signal bridging line,
The outdoor communication circuit portion carries out the communication with the indoor set,
The supply relay of cutting off the electricity supply is connected via the rectifier with power supply supply Control portion.
CN201410130227.8A 2013-04-09 2014-04-02 Air conditioner Active CN104101033B (en)

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