CN104101033A - Air conditioner - Google Patents

Air conditioner Download PDF

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Publication number
CN104101033A
CN104101033A CN201410130227.8A CN201410130227A CN104101033A CN 104101033 A CN104101033 A CN 104101033A CN 201410130227 A CN201410130227 A CN 201410130227A CN 104101033 A CN104101033 A CN 104101033A
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CN
China
Prior art keywords
outdoor
relay
power supply
inrush current
indoor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201410130227.8A
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Chinese (zh)
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CN104101033B (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 date
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Publication of CN104101033A publication Critical patent/CN104101033A/en
Application granted granted Critical
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 when running standby, indoor set and off-premises station also always communicated, and the electric power of indoor set and off-premises station is consumed.Therefore, following technology being disclosed in following patent documentation 1: by utilizing outdoor starter relay (relay) that power line and holding wire are disconnected when turning round standby, to supplying with source power supply between holding wire and bridging line, does not reduce stand-by electric.
[patent documentation 1] TOHKEMY 2010-243051 communique
Summary of the invention
But, according to above-mentioned technology in the past, exist in the situation that indoor set and off-premises station communicate, by the noise filter (noise filter) of off-premises station, consume the such problem of inefficient power.In addition, there is the position due to noise filter, even if also consume the such problem of inefficient power when the running standby not communicating.
The present invention is in view of above-mentioned and complete, its object be to obtain a kind of can cut down indoor set for running in off-premises station be the air conditioner of the inefficient power that consumed by off-premises station in standby in the situation that.
In order to solve above-mentioned problem and to reach object, the invention provides a kind of air conditioner, possess indoor set and off-premises station, described indoor set is connected by this 3 heart yearn of power line, bridging line and holding wire with described off-premises station, the electric power from source power supply of the some supplies in described off-premises station or described indoor set is powered to the opposing party via described power line and bridging line, it is characterized in that, described off-premises station possesses: the 1st power supply is supplied with relay, makes the switching that is connected of the 1st outdoor rectification part that described source power supply uses with outdoor control part; And the 2nd power supply supply with relay, make the switching that is connected of the 2nd outdoor rectification part that described source power supply uses with inverter circuit, inverter circuit is configured in than more close described the 2nd outdoor rectification part side of described the 2nd power supply supply relay with noise filter.
According to the present invention, play can cut down indoor set for running in off-premises station be the such effect of inefficient power being consumed by off-premises station in standby in the situation that.
Accompanying drawing explanation
Electronic system block diagram when Fig. 1 is the standby of air conditioner.
Fig. 2 be starting 1 air conditioner indoor set time electronic system block diagram.
Fig. 3 be running 1 air conditioner indoor set time electronic system block diagram.
Fig. 4 is the flow chart that the action of indoor set is shown.
Fig. 5 is the flow chart that the action of off-premises station is shown.
[symbol description]
1: air conditioner; 2: indoor set A; 3: indoor set B; 4: off-premises station; 5: indoor rectification part; 6: indoor control part; 7: indoor communications circuit part; 8: electric means data portion; 9: acceptance division; 10: remote controller; 11: outdoor power supply lines; 12: 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: capacitor A; 27: capacitor B; 28: inverter circuit; 29: outdoor control part; 30: telecommunication circuit power supply unit; 31: outdoor communication circuit part; 32: prevent inrush current relay coil; 33: diode; 34: cut off the electricity supply and supply with relay A; 35: cut off the electricity supply and supply with relay B; 36: indoor terminal board; 37: outdoor terminal board.
The specific embodiment
Below, with reference to the accompanying drawings, describe the embodiment of air conditioner of the present invention in detail.In addition, the invention is not restricted to this embodiment.
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 a plurality of indoor sets.
Below, indoor set A2 and this 2 the situation of B3 of being provided with is described.
In addition, the number of units of indoor set is not limited to this, can be also more than 2.
Indoor set A2 and B3 are connected by power line 14, power supply signal bridging line 15 and holding wire 16 respectively with off-premises station 4.
In the outdoor terminal board 37 of off-premises station 4, with indoor set A2 and B3 accordingly, possess respectively terminal S1, S2, S3.
Terminal L, the N of the outdoor terminal board 37 of off-premises station 4 are connected to source power supply 13.
The terminal L of outdoor terminal board 37 is connected with the terminal S1 of this outdoor terminal board 37.
The terminal N of outdoor terminal board 37 is connected with the terminal S2 of this outdoor terminal board 37.
Thus, the electric power from source power supply 13 that terminal L, N to outdoor terminal board 37 are supplied with, from terminal S1, the S2 of outdoor terminal board 37, via power line 14 and power supply signal bridging line 15, be supplied to terminal S1, the S2 of the indoor terminal board 36 of indoor set A2 and B3.
In addition, off-premises station 4 possesses outdoor communication circuit part 31 accordingly with the quantity of be connected indoor set.
One end separately of each outdoor communication circuit part 31 is connected with telecommunication circuit power supply unit 30, and the terminal S3 of the holding wire 16 of the indoor set that the other end is corresponding with being connected with Yu Gai outdoor communication circuit part 31 connects.
In addition, off-premises station 4 possesses accordingly diode (diode) 33 with the quantity of be connected indoor set and cuts off the electricity supply and supply with relay (cut off the electricity supply and supply with relay A34 and B35) herein.
The one end separately of supplying with relay A34 and B35 of respectively cutting off the electricity supply is connected with preventing inrush current relay coil (relaycoil) 32 via diode 33, the terminal S3 connection of the holding wire 16 of the indoor set that the other end is corresponding with being connected with Yu Gai outdoor communication circuit part 31.
By Jie, there is diode 33 can prevent that the indoor set from moving from applying voltage etc. for the impact of other indoor sets to the indoor set of the standby of turning round.Thus, in air conditioner 1, even in the situation that having connected a plurality of indoor set, also can reduce safely stand-by electric.
Indoor set A2 and B3 possess indoor rectification part 5, indoor control part 6, indoor communications circuit part 7, electric means data 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, the S2 of indoor terminal board 36.Indoor rectification part 5 is DC voltage arbitrarily by AC voltage conversion, is supplied to indoor control part 6.
Indoor communications circuit part 7 is connected with terminal S2, the S3 of indoor terminal board 36.Indoor communications circuit part 7 is via holding wire 16 and power supply signal bridging line 15, and the 31(of the outdoor communication circuit part aftermentioned of off-premises station 4) between communicate.
Electric means data (data) portion 8 is connected with indoor control part 6.Electric means data portion 8 configuration examples are as switchable unit such as storage device or switches (switch) (not shown), thereby the information of indoor electric means and outdoor electric means is identified in storage by the ON/OFF of identification switch when power supply rises.
In addition, the off-premises station 4 being connected with this indoor set A2 and B3 has outdoor relay A21 and B22(aftermentioned) and prevent inrush current relay A17 and B18(aftermentioned), in electric means data portion 8, whether storage identification is the information (hereinafter referred to as " stand-by electric corresponding informance ") of the off-premises station 4 of the stand-by electric in the time of can cutting down running standby.
Acceptance division 9 is connected with indoor control part 6.The signal that acceptance division 9 receives from remote controller (remote controller) 10, sends this signal to indoor control part 6.
Indoor control part 6 makes outdoor starter relay 12 actions.In addition, indoor control part 6 makes indoor communications circuit part 7 action, and off-premises station 4 between send and receive various CRANK PULSES etc.
One end of outdoor power supply lines 11 is connected with the terminal S1 of indoor terminal board 36, and the other end is connected with outdoor starter relay 12.
Connection or the terminal S3 of indoor terminal board 36 and being connected of outdoor power supply lines 11 of the terminal S3Yu indoor communications circuit part 7 of outdoor starter relay 12 switching chamber inner terminal platforms 36.
That is, outdoor starter relay 12 makes the switching that is connected of power line 14 and holding wire 16.When this outdoor starter relay 12 has moved, to supplying with the electric power from source power supply 13 between holding wire 16 and power supply signal bridging line 15.
Outdoor starter relay 12 is when stablizing, the terminal S3He indoor communications circuit part 7 of junction chamber inner terminal platform 36, by the action from indoor control part 6, the connection of the terminal S3Yu indoor communications circuit part 7 of indoor terminal board 36 is disconnected, the terminal S3 of junction chamber inner terminal platform 36 and outdoor power supply lines 11.
In addition, although not shown, in indoor set A2 and B3, as mechanical system, be provided with indoor heat converter, indoor fan (fan), sensor (sensor), display etc.
Off-premises station 4 possesses the inrush current of preventing relay A17 and B18, prevents inrush current resistance A19 and B20, outdoor relay A21 and B22, noise filter 23, outdoor rectification part A24 and B25, capacitor (capacitor) A26 and B27, inverter circuit 28, outdoor control part 29, telecommunication circuit power supply unit 30, outdoor communication circuit part 31, prevents inrush current relay coil 32, diode 33 and cut off the electricity supply and supply with relay A34 and B35.
Prevent that one end of inrush current relay A17 and the terminal L of outdoor terminal board 37 are connected, the other end is via preventing that inrush current resistance A19 is connected with noise filter 23.Prevent that inrush current relay A17 and outdoor relay A21 from arranging in parallel.
Prevent inrush current relay A17 break (often opening (normal open)) when running standby, by the action from outdoor control part 29, circuit-closing contacts.Make to prevent short circuit between inrush current resistance A19 and the terminal L of outdoor terminal board 37.
Prevent that one end of inrush current relay B18 and the terminal L of outdoor terminal board 37 are connected, the other end is via preventing that inrush current resistance B20 is connected with outdoor rectification part B25.Prevent that inrush current relay B18 and outdoor relay B22 from arranging in parallel.
Prevent inrush current relay B18 break (often opening) when running standby, if prevent that inrush current relay coil 32 is energized, circuit-closing contacts (being also called below " short circuit "), via preventing that inrush current resistance B20 from making short circuit between outdoor rectification part B25 and the terminal L of outdoor terminal board 37.
That is,, while preventing that inrush current relay coil 32 from having supplied with the electric power of source power supply 13 between to holding wire 16 and power supply signal bridging line 15, closure prevents inrush current relay B18.
Prevent that inrush current resistance A19 and outdoor relay A21 from arranging in parallel.Prevent that one end of inrush current resistance A19 is via preventing that inrush current relay A17 is connected with the terminal L of outdoor terminal board 37.In addition, the other end is connected with noise filter 23.
Prevent that inrush current resistance A19 from suppressing the inrush current to capacitor A26.
Prevent that inrush current resistance B20 and outdoor relay B22 from arranging in parallel.Prevent that one end of inrush current resistance B20 is via preventing that inrush current relay B18 is connected with the terminal L of outdoor terminal board 37.In addition, the other end is connected with outdoor rectification part B25.
Prevent that 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 is connected with noise filter 23.
Outdoor relay A21 is break (often opening) when running standby, by the action from outdoor control part 29, circuit-closing contacts.
One end of outdoor relay B22 is connected with the terminal L of outdoor terminal board 37, and the other end is connected with outdoor rectification part B25.
Outdoor relay B22 is break (often opening) when running standby, by the action from outdoor control part 29, circuit-closing contacts.
Noise filter 23, via preventing inrush current relay A17 and preventing inrush current resistance A19 or outdoor relay A21, is connected with the terminal L of outdoor terminal board 37.In addition, noise filter 23 is connected with the terminal N of outdoor terminal board 37.
Outdoor rectification part A24, via preventing inrush current relay A17 and preventing inrush current resistance A19 or outdoor relay A21 and noise filter 23, is connected with the terminal L of outdoor terminal board 37.In addition, outdoor rectification part A24 is connected with the terminal N of outdoor terminal board 37 via noise filter 23.
Outdoor rectification part A24 is DC voltage arbitrarily by the AC voltage conversion of supplying with from source power supply 13, is supplied to capacitor A26 and inverter circuit 28.
Outdoor rectification part B25, via preventing inrush current relay B18 and preventing inrush current resistance B20 or outdoor relay B22, is connected with the terminal L of outdoor terminal board 37.In addition, outdoor rectification part B25 is connected with the terminal N of outdoor terminal board 37.
Outdoor rectification part B25 is DC voltage arbitrarily by the AC voltage conversion of supplying with from source power supply 13, is supplied to capacitor B27 and outdoor control part 29.
Capacitor A26 is arranged between the output of outdoor rectification part A24, and the output of outdoor rectification part A24 is carried out to smoothing, to inverter circuit 28, supplies with DC voltage.
Capacitor B27 is arranged between the output of outdoor rectification part B25, and the output of outdoor rectification part B25 is carried out to smoothing, to outdoor control part 29, supplies with DC voltage.
Inverter circuit 28 is the alternating voltage of optional frequency, free voltage by supplied with DC voltage conversion.In addition, to inverter circuit 28, connect such as motors etc., drive the compressor that arranges etc. in off-premises station 4.
Outdoor control part 29 makes outdoor relay B22 and cuts off the electricity supply and supply with relay A34, B35 action.In addition, 31 actions of outdoor control part 29Shi outdoor communication circuit part, and indoor set A2 and B3 between send and receive various CRANK PULSES etc.
In addition, outdoor control part 29 is controlled and is prevented inrush current relay A17, outdoor relay A21 and inverter circuit 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 preventing inrush current resistance B20 or outdoor relay B22, is connected with the terminal L of outdoor terminal board 37.In addition, the other end is connected with the terminal S2 of outdoor terminal board 37.
Telecommunication circuit power supply unit 30 is supplied to outdoor communication circuit part 31 by the AC voltage conversion of supplying with from source power supply 13 for DC voltage arbitrarily.Telecommunication circuit power supply unit 30 consists of for example half-wave rectifying circuit.
One end of outdoor communication circuit part 31 is connected with the terminal S3 of outdoor terminal board 37, and the other end is connected with telecommunication circuit power supply unit 30.In addition, outdoor communication circuit part 31 is via holding wire 16 and power supply signal bridging line 15, and communicates between the indoor communications circuit part 7 of indoor set A2 and B3.
Prevent that one end of inrush current relay coil 32 and the terminal S2 of outdoor terminal board 37 are connected, the other end via diode 33, cut off the electricity supply and supply with relay A34(or B35) be connected with the terminal S3 of outdoor terminal board 37.
If energising, prevents that inrush current relay coil 32 closures from preventing the contact of inrush current relay B18.
One end of diode 33 is connected with preventing inrush current relay coil 32, and the other end is connected with cut off the electricity supply supply relay A34 and B35.
Diode 33 prevents that the indoor set from moving from applying voltage to the indoor set of the standby of turning round.
The one end of supplying with relay A34 and B35 of cutting off the electricity supply is connected with preventing inrush current relay coil 32 via diode 33, and the other end is connected with the terminal S3 of outdoor terminal board 37.
Cut off the electricity supply and supply with relay A34 and B35 circuit-closing contacts (normally closed (normal close)) when running standby, by the action from outdoor control part 29, contact is disconnected and cut off to the energising that prevents inrush current relay coil 32.
In addition, although not shown, in off-premises station 4, as mechanical system, be provided with outdoor heat converter, outdoor fan sensor (fansensor), electromagnetic expanding valve, cold-producing medium transfer valve, compressor.
In addition, power supply signal bridging line 15 is equivalent to " bridging line " in the present invention.
In addition, prevent that inrush current relay B18 and outdoor relay B22 are equivalent to " the 1st power supply is supplied with relay " in the present invention.
In addition, prevent that inrush current relay B18 and outdoor relay B22 are equivalent to respectively " the 1st prevents inrush current relay ", " the 1st outdoor relay " in the present invention.
In addition, prevent that inrush current relay A17 and outdoor relay A21 are equivalent to " the 2nd power supply is supplied with relay " in the present invention.
In addition, prevent that inrush current relay A17 and outdoor relay A21 are equivalent to respectively " the 2nd prevents inrush current relay ", " the 2nd outdoor relay " in the present invention.
In addition, prevent that inrush current relay coil 32 is equivalent to " power supply is supplied with Control portion " in the present invention.
In addition, diode 33 is equivalent to " rectifier " in the present invention.
The structure of air conditioner 1 has been described above.
Next, the action of air conditioner 1 is described.
< moves >
The supply of the electric power while first, the running standby of air conditioner 1 being described.
Terminal S1, S2 to the indoor terminal board 36 of indoor set A2 and B3, via power line 14 and power supply signal bridging line 15, supply with the electric power from source power supply 13 that terminal L, the N of outdoor terminal board 37 are supplied with from terminal S1, the S2 of outdoor terminal board 37.
The electric power of the source power supply 13 of then, each indoor rectification part 5 inputs being supplied with terminal S1, the S2 of indoor terminal board 36.
Indoor rectification part 5 is DC voltage arbitrarily by inputted AC voltage conversion.Indoor rectification part 5 is supplied to the DC voltage having converted each structural portion of indoor control part 6 and indoor set A2 and B3.
Indoor control part 6, according to the data of storage in electric means data portion 8, judges which in indoor electric means or outdoor electric means this air conditioner 1 be, when being judged as YES outdoor electric means, the control of outdoor starter relay 12 is become effectively.
In addition, indoor control part 6 is according to the stand-by electric corresponding informance of storage in electric means data portion 8, and whether the off-premises station 4 that judgement is connected with this indoor set A2 and B3 is the off-premises station 4 of the stand-by electric in the time of can cutting down running standby.
Outdoor starter relay 12 when stablizing, terminal S3 and the outdoor communication circuit part 31 of telecommunication circuit portion 7 and indoor terminal board 36 in junction chamber.
Thus, each indoor communications circuit part 7 is connected with off-premises station 4 via holding wire 16, and becoming can be for the state of off-premises station 4 communications.
In addition now, indoor control part 6 becomes the reception holding state that the running that sends and receive via acceptance division 9 from remote controller 10 starts requirement signal.
Off-premises station 4 prevent inrush current relay A17 and B18 and outdoor relay A21 and B22 break when running standby.
In addition now, each outdoor starter relay 12 of indoor set A2 and B3 makes the disconnection that is connected of terminal S3 with the outdoor power supply lines 11 of indoor terminal board 36.
Therefore, and terminal S2, the S3 of outdoor terminal board 37 between, do not supply with the electric power from source power supply 13, prevent that inrush current relay coil 32 is for non-power status.
Therefore,, even terminal L, the N of the outdoor terminal board 37 of off-premises station 4 have been supplied with to source power supply 13, prevent that inrush current relay A17 and B18 and outdoor relay A21 and B22 from also becoming off-state.
Therefore, when running standby, to supplying with and be cut off at the power supply that prevents each structural portion that inrush current relay A17 and the B18 downstream with outdoor relay A21 and B22 is connected, the stand-by electric that in the time of can being reduced in running standby, off-premises station 4 consumes.
Action while next, the starting of off-premises station of air conditioner 1 being described and in running.
Fig. 2 be starting 1 air conditioner indoor set time electronic system block diagram.
Fig. 3 be running 1 air conditioner indoor set time electronic system block diagram.
Below, illustrate and only indoor set A2 is being sent the action of starting off-premises station 4 in the situation that running starting requirement from remote controller 10.
If sent running from 10 couples of indoor set A2 of remote controller, start requirement, the indoor control part 6 of indoor set A2 starts requirement via acceptance division 9 these runnings of reception.
First, the action of indoor set A2 is described.Fig. 4 is the flow chart that the action of indoor set is shown.In addition, Fig. 5 is the flow chart that the action of off-premises station is shown.According to each step (STEP) of flow chart, describe.
(STEP1)
Indoor control part 6, via acceptance division 9, receives running from remote controller 10 and starts requirement.
(STEP2)
Indoor control part 6, with reference to the information of electric means data portion 8, in the situation that are outdoor electric means from the data of electric means data portion 8, makes 7 actions of indoor communications circuit part, makes to start with communicating by letter of off-premises station 4.
(STEP3)
Indoor control part 6 judges whether indoor communications circuit part 7 establishes with the communicating by letter of outdoor communication circuit part 31 of off-premises station 4.
In the situation that indoor communications circuit part 7 has established with communicating by letter of off-premises station 4, enter into STEP9.
(STEP4)
On the other hand, in STEP3, in the situation that indoor communications circuit part 31 fails to establish with communicating by letter of off-premises station 4, indoor control part 6 makes outdoor starter relay 12 actions (ON), the connection of the terminal S3Yu indoor communications circuit part 7 of indoor terminal board 36 is disconnected, the terminal S3 of junction chamber inner terminal platform 36 and outdoor power supply lines 11.
Thus, to supplying with the electric power from source power supply 13 between holding wire 16 and power supply signal bridging line 15.
(STEP5)
Indoor control part 6 makes the outdoor 12 action stipulated times (with reference to Fig. 2) of starter relay.
This stipulated time is set as for example time (n second) to the capacitor B27 charging charge of off-premises station 4.In addition, the stipulated time is not limited to this.
(STEP6)
Indoor control part 6 makes outdoor starter relay after 12 action stipulated times, the action of this outdoor starter relay 12 is stopped (OFF), the terminal S3He indoor communications circuit part 7 of junction chamber inner terminal platform 36, disconnects the terminal S3 of indoor terminal board 36 and the connection of outdoor power supply lines 11.
(STEP7)
Indoor control part 6 makes 7 actions of indoor communications circuit part, makes to start with communicating by letter of off-premises station 4.
Then, indoor control part 6 judges whether indoor communications circuit part 7 establishes with the communicating by letter of outdoor communication circuit part 31 of off-premises station 3 again.
(STEP8)
In the situation that indoor communications circuit part 7 established with communicating by letter of off-premises station 4, indoor communications circuit part 7 starts and the communicating by letter of the outdoor communication circuit part 31 of off-premises station 4.
(STEP9)
Indoor control part 6 communicates with off-premises station 4 via indoor communications circuit part 7, makes this air conditioner 1 carry out cooling operation or heat running.
(STEP10)
On the other hand, in STEP7, indoor communications circuit part 7 communicates by letter in situation about could not establish with off-premises station 4, and indoor control part 6 makes 7 actions of indoor communications circuit part again, makes to start with communicating by letter of off-premises station 4.
Then, indoor control part 6 judge at the appointed time during in (n second), whether indoor communications circuit part 7 establishes with communicating by letter of off-premises station 4.
(STEP11)
In STEP10, until through n second, indoor communications circuit part 7 communicates by letter in situation about could not establish with off-premises station 4, indoor control part 6 is judged as communication abnormality.
Next, with reference to Fig. 2 and Fig. 3, the action of off-premises station 4 is described.
(STEP12)
If the outdoor starter relay 12 of indoor set A2 becomes ON, to having supplied with the electric power from source power supply 13 between holding wire 16 and power supply signal bridging line 15, to supplying with the electric power from source power supply 13 between the terminal S2 of the outdoor terminal board 37 of off-premises station 4 and S3.
(STEP13)
If to having supplied with the electric power from source power supply 13 between the terminal S2 of outdoor terminal board 37 and S3, prevent that inrush current relay coil 32 is energized via the supply relay A34 that cuts off the electricity supply, and makes to prevent inrush current relay B18 short circuit (with reference to Fig. 2).
If prevent that inrush current relay B18 is by short circuit, the source power supply 13 of terminal L, N to outdoor terminal board 37 being supplied with is via preventing that inrush current resistance B20 is supplied to outdoor rectification part B25.
Outdoor rectification part B25 is DC voltage arbitrarily by the AC voltage conversion of supplying with from source power supply 13, is supplied to capacitor B27, outdoor control part 29 and telecommunication circuit power supply unit 30.
Telecommunication circuit power supply unit 30 is supplied to outdoor communication circuit part 31 by the AC voltage conversion of supplying with from source power supply 13 for DC voltage arbitrarily.
(STEP14)
If outdoor control part 29 has been supplied to dc source from outdoor rectification part B25, make outdoor relay B22 short circuit.
(STEP15)
Next, outdoor control part 29 makes to cut off the electricity supply and supplies with relay A34 action and contact is disconnected.
(STEP16)
If cut off the electricity supply, supply with relay A34 and be disconnected, prevent that inrush current relay coil 32 from becoming non-energising, make to prevent that inrush current relay B18 from disconnecting (with reference to Fig. 3).
Thus, in the running of off-premises station 4, can prevent short circuit between terminal S2, the S3 of outdoor terminal board 37, become the state of communicating by letter that can carry out indoor communications circuit part 7 and outdoor communication circuit part 31.
(STEP17)
Next, outdoor control part 29 makes 31 actions of all outdoor communications circuit part, and makes to start with communicating by letter of indoor set A2 or B3.
Each outdoor communication circuit part 31 is via power supply signal bridging line 15 and holding wire 16, starts the communication with the indoor communications circuit part 7 of corresponding indoor set.
(STEP18)
Outdoor control part 29 judges whether each outdoor communication circuit part 31 establishes with the communicating by letter of indoor communications circuit part 7 of the indoor set of correspondence.
Outdoor control part 29 until with communicate by letter establishment, the repeatedly STEP17 of some indoor communications circuit parts 7 in indoor set A2 or B3.
(STEP19)
Herein, because the indoor communications circuit part 7 of indoor set A2 is moving, so be made as outdoor communication circuit part 31, established with the communicating by letter of indoor communications circuit part 7 of indoor set A2.
In this case, off-premises station 4 starts and the communicating by letter of indoor set A2.
(STEP20)
Outdoor control part 29 makes to prevent inrush current relay A17 action, and short circuit.
This operation condition setting is the timing (timing) that makes the compressor action of setting in off-premises station 4.In addition, operation condition is not limited to this.
If prevent that inrush current relay A17 is by short circuit, the source power supply 13 of terminal L, N to outdoor terminal board 37 being supplied with, via preventing that inrush current resistance A19 is supplied to noise filter 23.
Noise filter 23 is eliminated the noise comprising the alternating voltage of supplying with from source power supply 13, to outdoor rectification part A24, supplies with alternating voltage.
The AC voltage conversion that outdoor rectification part A24 will eliminate noise (noise) by noise filter 23 is DC voltage arbitrarily, is supplied to capacitor A26 and inverter circuit 28.
(STEP21)
Outdoor control part 29 makes outdoor relay A21 action, and short circuit.
This operation condition setting is the timing of certain electric charge that charged in capacitor A26.In addition, operation condition is not limited to this.Thus, can prevent that inrush current from flowing into capacitor A26.
(STEP22)
Outdoor control part 29 makes to prevent the inrush current relay A17 action stipulated time.
This stipulated time is set as for example time of charging charge (n second) in the capacitor A26 of off-premises station 4.In addition, the stipulated time is not limited to this.
(STEP23)
Outdoor control part 29, making to prevent that inrush current relay A17 from moving after the stipulated time, disconnects this contact that prevents inrush current relay A17.
(STEP24)
Outdoor control part 29 communicates via outdoor communication circuit part 31 and indoor set A2, makes this air conditioner 1 carry out cooling operation or heat running.
Next, illustrate in the process of indoor set A2 and off-premises station 4 runnings, indoor set B3 has been sent to the action the situation that running starts requirement from remote controller 10.
If sent running from 10 couples of indoor set B3 of remote controller, start requirement, the indoor control part 6 of indoor set B3 starts requirement via acceptance division 9 these runnings of reception.
After, by the same action of the STEP1~STEP3 with above-mentioned flow chart, carry out the indoor communications circuit part 7 of indoor set B3 and the establishment of communicating by letter of off-premises station 4.
Herein, by above-mentioned action, off-premises station 4 has been in running, and the outdoor communication circuit part 31 being connected with the indoor set B3 establishment of repeatedly communicating by letter, so indoor set B3 can establish and communicate by letter with off-premises station 4.
Therefore,, by the STEP3 with above-mentioned flow chart and the same action of STEP9, the indoor control part 6 of indoor set B3 communicates with off-premises station 4 via indoor communications circuit part 7, makes this air conditioner 1 carry out cooling operation or heat running.
Next, the action that makes air conditioner 1 transfer to running holding state is described.
With above-mentioned action similarly, each indoor control part 6 receives the running standby signal from remote controller 10 via acceptance division 9.
The outdoor control part 29 of off-premises station 4 receives running standby signal via each outdoor communication circuit part 31.
If outdoor control part 29 receives running standby signal from all indoor sets, make outdoor relay A21 and B22 action, and contact is disconnected.
Thus, from terminal L, the N of outdoor terminal board 37, for the electric power from source power supply 13 of noise filter 23, outdoor rectification part B27 and telecommunication circuit power supply unit 30, supply with and be stopped, to the supply of the dc source of each structural portion of off-premises station 4, be also stopped.
By such action, again transfer to above-mentioned running holding state (with reference to Fig. 1).
< effect >
As described above, in the present embodiment, even in the situation that indoor set is many, when running standby, make to prevent that inrush current relay A17 and B18 and outdoor relay A21 and B22 from becoming off-state, cuts off for the electric power from source power supply 13 of off-premises station 4 and supply with.In addition, by inverter circuit 28 is separated with outdoor control part 29, via preventing inrush current relay A17 and preventing inrush current resistance A19 or outdoor relay A21, connect noise filter 23, can suppress inefficient power.Therefore, even indoor set become in running and off-premises station 4 become standby in the situation that, also can be by making inverter circuit 28 separated with outdoor control part 29, and the large capacitor A26 of the line capacitance of the noise filter 23 of separated inverter circuit 28 use, even so indoor set for running in and compressor stop off-premises station 4 in standby in the situation that, also can suppress the consumption of the inefficient power due to the noise filter 23 of inverter circuit 28 use.
In addition, inverter circuit 28 and outdoor control part 29 in off-premises station 4, have been configured to separated, the outer control part 29 of first priming chamber, the action of outdoor control part 29 control inverter circuit 28.Like this, can to SPM (intelligent power module) (IPM) apply busbar voltage before, by startup, control power supply IPM moved safely.
In addition, even in the situation that indoor set is many, by having diode 33 in off-premises station 4 intermediaries, can prevent that the indoor set from moving from applying voltage to the indoor set of the standby of turning round, can reduce safely stand-by electric.
In addition, in the present embodiment, the situation that connects a plurality of indoor sets has been described, but has been not limited to this.About suppressing the effect of the consumption of the inefficient power due to the noise filter 23 of inverter circuit 28 use, even in the situation that indoor set is 1, also can access same effect.
[utilizability in industry]
As described above, air conditioner of the present invention is useful to the reduction of power consumption, the reduction of the power consumption while being specially adapted to standby.

Claims (6)

1. an air conditioner, possess indoor set and off-premises station, described indoor set is connected by this 3 heart yearn of power line, bridging line and holding wire with described off-premises station, the electric power from source power supply of the some supplies in described off-premises station or described indoor set is powered to the opposing party via described power line and bridging line, this air conditioner is characterised in that
Described off-premises station possesses:
The 1st power supply is supplied with relay, makes the switching that is connected of the 1st outdoor rectification part that described source power supply uses with outdoor control part; And
The 2nd power supply is supplied with relay, makes the switching that is connected of the 2nd outdoor rectification part that described source power supply uses with inverter circuit,
Inverter circuit is configured in than described the 2nd power supply and supplies with more close described the 2nd outdoor rectification part side of relay with noise filter.
2. air conditioner according to claim 1, is characterized in that,
Described indoor set possesses:
Outdoor starter relay, makes the switching that is connected of described power line and described holding wire; And
Indoor control part, makes described outdoor starter relay action, to supplying with described source power supply between described holding wire and described bridging line,
Described off-premises station possesses while having supplied with described source power supply between to described holding wire and described bridging line, and the power supply that makes described the 1st power supply supply with relay closes is supplied with Control portion.
3. air conditioner according to claim 2, is characterized in that,
Described off-premises station possesses makes described the 2nd power supply supply with the actuating of relay, and control is for the outdoor control part of the supply of the described source power supply of inverter circuit.
4. air conditioner according to claim 3, is characterized in that,
Described off-premises station possesses cut-out and to described power supply, supplies with the supply relay of cutting off the electricity supply of the energising of Control portion,
Described the 1st power supply of described off-premises station is supplied with relay and is possessed:
The 1st prevents inrush current relay, and the 1st prevents that inrush current resistance is connected in series, and supplies with the energising of Control portion move by described power supply; And
The 1st outdoor relay, prevents that with the described the 1st inrush current resistance and the described the 1st from preventing that inrush current relay is connected in parallel, by the control of described outdoor control part, moves,
Described outdoor control part is after the described the 1st contact that prevents inrush current relay has been closed, the contact of closed described the 1st outdoor relay, described in making, cut off the electricity supply and supply with the actuating of relay and break, cut off energising from Control portion to described power supply that supply with.
5. air conditioner according to claim 4, is characterized in that,
Described the 2nd power supply of described off-premises station is supplied with relay and is possessed:
The 2nd prevents inrush current relay, and the 2nd prevents that inrush current resistance is connected in series, and moves by the control of described outdoor control part; And
The 2nd outdoor relay, prevents that with the described the 2nd inrush current resistance and the described the 2nd from preventing that inrush current relay is connected in parallel, by the control of described outdoor control part, moves,
Described outdoor control part is utilizing after described the 1st outdoor relay switches on, and controls the described the 2nd action that prevents inrush current relay and described the 2nd outdoor relay.
6. according to the air conditioner described in any one in claim 2~5, it is characterized in that,
In the situation that possessing a plurality of described indoor set,
Described off-premises station possesses with the cutting off the electricity supply of the corresponding quantity of quantity of described a plurality of indoor sets supplies with relay, rectifier and outdoor communication circuit part,
Described cutting off the electricity supply supplied with relay for each indoor set, is disposed between described holding wire and described bridging line, cuts off the energising from this holding wire to this bridging line,
Described rectifier carries out the energising from described holding wire to described bridging line,
Described outdoor communication circuit part carries out and the communicating by letter of described indoor set,
The described supply relay of cutting off the electricity supply is supplied with Control portion via described rectifier and described power supply and is connected.
CN201410130227.8A 2013-04-09 2014-04-02 Air conditioner Active CN104101033B (en)

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