CN202973440U - Air conditioning device - Google Patents
Air conditioning device Download PDFInfo
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- CN202973440U CN202973440U CN 201220719918 CN201220719918U CN202973440U CN 202973440 U CN202973440 U CN 202973440U CN 201220719918 CN201220719918 CN 201220719918 CN 201220719918 U CN201220719918 U CN 201220719918U CN 202973440 U CN202973440 U CN 202973440U
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- 238000004378 air conditioning Methods 0.000 title abstract 4
- 230000005540 biological transmission Effects 0.000 claims description 59
- 230000008054 signal transmission Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract description 7
- 239000003990 capacitor Substances 0.000 description 16
- 230000005611 electricity Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 9
- 230000018199 S phase Effects 0.000 description 7
- 208000012839 conversion disease Diseases 0.000 description 5
- 230000007704 transition Effects 0.000 description 3
- 102220540180 Protein EOLA2_K14R_mutation Human genes 0.000 description 2
- 102220540185 Protein EOLA2_K15R_mutation Human genes 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The utility model discloses an air conditioning device. A power line, a signal line and a collective line are arranged between an internal unit and an external unit. An internal unit transmitting circuit is arranged in the internal unit for communications through the signal line and the collective line. An on-and-off switch is arranged for connecting and disconnecting between the signal line and the power line. A protecting circuit is arranged for preventing alternating-current (AC) from flowing to the internal unit transmitting circuit when the signal line is connected with the power line. An external controlling circuit is arranged in the external unit. When the signal line is connected with the power line, the external controlling circuit is started after being charged by one AC phase line connecting the signal line and the power line and one AC phase line same as one phase line connected with the collective line; and after started, the external controlling circuit is switched to a status of being charged by an AC power supply without the power line and the signal line. Therefore, stand-by power consumption of the air conditioning device is reduced, and meanwhile reliability of the air conditioning device is improved.
Description
Technical field
The utility model relates to a kind of aircondition, particularly relates to a kind of technology that reduces the stand-by power consumption of aircondition.
Background technology
A kind of like this aircondition is arranged, and in this aircondition, off-premises station and indoor set couple together by the holding wire of power line, signal transmission and for transmitting this three line of bridging line that alternating current and signal transmission shared.And, there is such situation in this aircondition, that is: in order to reduce stand-by power consumption, stop the circuit supply in the off-premises station when standby, and when starting after holding wire power from indoor set to off-premises station the circuit (reference example such as patent documentation 1,2) in the startup off-premises station.In the example of described patent documentation, for to allowing flow through holding wire or allow alternating current switch through holding wire of signal, and used so-called conversion hysteria relay.
Patent documentation 1: Japanese Laid-Open Patent Publication JP 2010-243051 communique
Patent documentation 2: Japanese Laid-Open Patent Publication JP 2010-54065 communique
The utility model content
-utility model technical problem to be solved-
But, will relate to two stationary contacts owing to carrying out a handover operation in the conversion hysteria relay, thereby compare with on-off switches such as so-called open type relays, and might occur making the problem of reliability decrease because arc discharge causes contact melted etc.
The utility model is completed in view of described problem, and its purpose is: seek to reduce the stand-by power consumption of aircondition, seek simultaneously to improve the reliability of aircondition.
-in order to the technical scheme of technical solution problem-
In order to address the above problem, the utility model of first aspect is take following aircondition as prerequisite.In this aircondition, send from the holding wire S of the power wiring L, the signal transmission that exchange the alternating current of power supply 40 and for transmitting described alternating current and transmitting the bridging line N that described signal shares and be arranged between off-premises station 10 and indoor set 20.It is characterized in that: this aircondition comprises indoor set transmission circuit 21, on-off switch K2R, holding circuit D1, D2 and outside control circuit 13.Described indoor set transmission circuit 21 is arranged in described indoor set 20, carries out the sending and receiving of described signal according to the potential difference between described holding wire S and described bridging line N and described off-premises station 10; Described on-off switch K2R between described holding wire S and described power wiring L be connected and disconnection is switched; Described holding circuit D1, D2 stop alternating current to flow to described indoor set transmission circuit 21 when described holding wire S and described power wiring L couple together; Described outside control circuit 13 is arranged in described off-premises station 10, when described holding wire S be connected power wiring L when coupling together this outside control circuit 13 through with described holding wire S be connected in phase line and the described off-premises station 10 that is connected of the described alternating current that power wiring L connects with and be connected and start after the phase line of the identical described alternating current of phase line that bridging line N connects is powered, startup switches to later the state of being powered by described AC power 40 without described power wiring L and described holding wire S.
Under this structure, when disconnecting, on-off switch K2R can allow communication with the signal holding wire S that flows through, the alternating current holding wire S that just flows through when on-off switch K2R connects.When alternating current flows, flow into the protected circuit D1 of alternating current, the D2 blocking-up of this direction of indoor set transmission circuit 21 and off-premises station 10 from power wiring L.
Also have, under this structure, an end of indoor set transmission circuit 21 is connected with the phase line (being the S phase in following embodiment) of described alternating current through bridging line N.The other end of indoor set transmission circuit 21 is connected with holding wire S, and this holding wire S is the inside distribution in described off-premises station 10, and the phase line of the alternating current identical with the phase line that is connected with bridging line N (being the S phase in following embodiment) connects.That is to say, when on-off switch K2R connected, indoor set transmission circuit 21 only was connected with one of AC power 40.Therefore, the alternating current from this direction of holding wire S one side inflow can not flow into indoor set transmission circuit 21.
The utility model of second aspect is such; in the related aircondition of the utility model of first aspect; described holding circuit D1, D2 comprise the 1st diode D1 and the 2nd diode D2; the 1st diode D1 blocking-up flows into the alternating current of this direction of described indoor set transmission circuit 21, and the 2nd diode D2 blocking-up is from the alternating current of this direction of described indoor set transmission circuit 21 outflows.
The utility model of the third aspect is such, in the related aircondition of the utility model of second aspect, described the 1st diode D1 connects with described on-off switch K2R between described holding wire S and described power wiring L, the end of described the 2nd diode D2 is connected with the signal input node ND2 of described indoor set transmission circuit 21, and the other end of the 2nd diode D2 is connected with described holding wire S.
Under this structure, holding circuit D1, D2 only are made of diode.
The utility model of fourth aspect is such, and in the related aircondition of the utility model of the either side first to the third aspect, described on-off switch K2R is the open type relay.
Under this structure, with the open type relay to allowing communication with flow through holding wire S or allow alternating current switch through holding wire S of signal.
The effect of-utility model-
According to the utility model of first aspect, use the switching of signal and alternating current because just realized communicating by letter with on-off switch and holding circuit, so the structure of switch is very simple, and can seek to reduce stand-by power consumption, can improve reliability simultaneously.
According to the utility model of second aspect and the third aspect, can consist of holding circuit with simple structure.
According to the utility model of fourth aspect, because compare with existing aircondition, the open type relay less with number of contacts consists of on-off switch, so reliability is improved.
Description of drawings
Fig. 1 is the block diagram of the electrical system of the related aircondition of embodiment of the present utility model.
Fig. 2 is the state transition diagram of the aircondition of present embodiment.
Fig. 3 means the figure of the state of each relay when having formed the circuit of smoothed capacitor charging.
Fig. 4 means the figure of the state of each relay after the transfer to charged state finishes.
Fig. 5 means the figure of the state of each relay when finishing to the transfer of wait state.
Fig. 6 means the figure of the state of each relay under operating condition.
-symbol description-
The 1-aircondition; The 10-off-premises station; 13-outside control circuit; The 20-indoor set; 21-indoor set transmission circuit; 40-commercial ac power source (AC power); D1-the 1st diode; D2-the 2nd diode; K2R-relay (on-off switch); The L-power wiring; The N-bridging line; The S-holding wire.
The specific embodiment
Below, with reference to accompanying drawing, embodiment of the present utility model is described.In addition, following embodiment is preferred example in essence, but intention is not limited the scope of the utility model, its application or its purposes.
(embodiment of utility model)
＜overall structure 〉
Fig. 1 is the block diagram of the electrical system of the related aircondition of embodiment of the present utility model 1.As shown in Figure 1, aircondition 1 has off-premises station 10, indoor set 20 and remote controller 30.In addition, be provided with the parts such as motor compressor, outdoor heat converter, outdoor fan and expansion valve in off-premises station 10, be provided with the parts such as indoor heat converter, indoor fan in indoor set 20, but these do not illustrate out.In aircondition 1, consisted of the refrigerant loop (omitting diagram) that carries out kind of refrigeration cycle by these parts.
In aircondition 1, after alternating current (being the three-phase alternating current of 200V in this example) is supplied with off-premises station 10 from commercial AC power 40, except the circuit in off-premises station 10 and described motor compressor are powered, also the two-phase in this three-phase alternating current is supplied with indoor set 20.In order to realize from indoor set 20 1 sides, off-premises station 10 such as being controlled at the purpose, carry out the communication of signal between off-premises station 10 and indoor set 20.For this reason, in aircondition 1, be provided with the holding wire S of the power wiring L that sends from the alternating current of commercial ac power source 40 (hereinafter referred to as AC power), the described signal of transmission and for transmitting described alternating current and transmitting this three line of bridging line N (inside and outside distribution) that described signal shares between off-premises station 10 and indoor set 20.
In this example, power wiring L is connected with the R of AC power 40 in off-premises station 10, and bridging line N is connected with the S of AC power 40 in off-premises station 10.That is to say, indoor set 20 is connected with S with the R phase of AC power 40, is supplied to single-phase alternating current.Holding wire S is except being used for the described signal of sending and receiving, also as hereinafter described in order to transmit alternating current.For this reason, with having the distribution of the current-carrying capacity corresponding with trnamission capacity as holding wire S.In the present embodiment, use the distribution identical with bridging line N with power wiring L as holding wire S.
＜off-premises station 10 〉
Off-premises station 10 has the first outside power circuit 14, the second outside power circuits 12, off-premises station transmission circuit 11, and outside control circuit 13 and relay K 13R, K14R, K15R are with the electrical system as this off-premises station.
The-the first outside power circuit 14-
The first outside power circuit 14 will be supplied with so-called SPM (Intelligent Power Module simply is denoted as " IPM " in the drawings) and outdoor fan motor after will being converted to direct current from the three-phase alternating current that exchanges power supply 40.In addition, after SPM is converted to the alternating current with assigned frequency and voltage with the direct current of inputting, supply with the motor of described motor compressor.In this example, the first outside power circuit 14 has noise filter 14a, two main relay 14b, two diode electrically bridge circuit 14c, reactor 14d and smmothing capacitor 14e.
The-the second outside power circuit 12-
The second outside power circuit 12 is after this two-phase is converted to direct current (being in this example 5V) mutually with S with the R phase of described three-phase alternating current, supply chamber outside control circuit 13.In this example, the second outside power circuit 12 has diode electrically bridge circuit 12a, smmothing capacitor 12b and Switching Power Supply 12c.The input of diode electrically bridge circuit 12a is connected with the relay K 13R that hereinafter is described in detail, and another input is connected with the S of described three-phase alternating current.After the output of diode electrically bridge circuit 12a is level and smooth by smmothing capacitor 12b, input switch power supply 12c.Switching Power Supply 12c is made of for example DC-DC converter, and the direct current of inputting is converted to assigned voltage (5V) backward outside control circuit 13 outputs.
-off-premises station transmission circuit 11-
Carry out communicating by letter of signal between off-premises station transmission circuit 11 and indoor set transmission circuit 21.In this communication, according to the potential difference between holding wire S and bridging line N, carry out communicating by letter of high level and low level bi-level digital signal.One end of the telecommunication circuit in indoor set transmission circuit 21 (omitting diagram) is connected with bridging line N, and the other end of telecommunication circuit is connected with holding wire S through relay K 14R.
-relay K 13R-
Relay K 13R switches relay from the path of alternating current to the second outside power circuit 12 that supply with.Relay K 13R is made of so-called conversion hysteria relay.Particularly, relay K 13R has two stationary contacts and a movable contact, a stationary contact (being called normally-closed contact) is connected with movable contact when not to the coil electricity of this relay K 13R, if to this coil electricity another stationary contact (being called normally opened contact) will be connected with movable contact.Switching (whether to coil electricity) to relay K 13R is controlled by outside control circuit 13.
In this example, the movable contact of relay K 13R is connected with the input of diode electrically bridge circuit 12a.Normally-closed contact is connected with holding wire S, and normally opened contact is connected with the R of described three-phase alternating current.That is to say, when not to the coil electricity of relay K 13R, normally-closed contact is connected with movable contact, and the input of diode electrically bridge circuit 12a is connected with holding wire S.If to the coil electricity of relay K 13R, movable contact is connected with normally opened contact, and becomes to the state of the diode electrically bridge circuit 12a input AC electricity of the second outside power circuit 12.
-relay K 14R-
Relay K 14R is to being connected and relay that disconnection is switched between holding wire S and off-premises station transmission circuit 11.Relay K 14R is made of so-called open type relay, if to the coil electricity of this relay, stationary contact and movable contact become closure state.The break-make of relay K 14R is controlled by outside control circuit 13.In this example, relay K 14R constitutes: movable contact is connected with holding wire S, and an end of the telecommunication circuit in stationary contact and off-premises station transmission circuit 11 (omitting diagram) is connected.Certainly, in the open type relay, the signal of inputting etc. can be also opposite with the corresponding relation of each contact.
-relay K 15R-
Relay K 15R is the relay that whether switches to 11 power supplies of off-premises station transmission circuit.Relay K 15R is made of so-called open type relay.Relay K 15R constitutes: a contact is connected with the supply node of off-premises station transmission circuit 11, and another contact is connected with the R of described three-phase alternating current.Off-premises station transmission circuit 11 is powered if connect relay K 15R, if relay K 15R disconnection is cut off to the power supply of off-premises station transmission circuit 11.The break-make of relay K 15R is controlled by outside control circuit 13.
-outside control circuit 13-
Outside control circuit 13 comprises that microcomputer and having stored allows the memory (omitting diagram) of program of this microcomputer work.Outside control circuit 13 is also controlled when off-premises station 10 starts (as mentioned below) except such as the signal that receives from indoor set transmission circuit 21 according to off-premises station transmission circuit 11, described motor compressor etc. being controlled.(aircondition 1 overall power is minimum state when aircondition 1 is in the instruction wait state.Be described as follows literary composition described) time, being cut off to the power supply of outside control circuit 13, this outside control circuit 13 quits work.
＜indoor set 20 〉
-indoor power circuit 22-
In this example, noise filter 22a is made of two coils.Diode electrically bridge circuit 22b is to carrying out full-wave rectification through noise filter 22a by the alternating current that power wiring L and bridging line N input.Smmothing capacitor 22c is formed by for example electrolytic capacitor, and the output of diode electrically bridge circuit 22b is carried out smoothly.Switching Power Supply 22d is by consisting of such as DC-DC converter etc., with smmothing capacitor 22c level and smooth direct current be converted to assigned voltage (5V) backward indoor control circuit 23 outputs.
-indoor set transmission circuit 21-
As mentioned above, carry out communicating by letter of signal between indoor set transmission circuit 21 and off-premises station transmission circuit 11.In this communication, carry out communicating by letter of data signal according to holding wire S with the potential difference between bridging line N, thereby an end of the telecommunication circuit in indoor set transmission circuit 21 is connected with holding wire S through the 2nd diode D2, the other end of telecommunication circuit is connected with bridging line N.
-relay K 2R, the 1st diode D1 and the 2nd diode D2-
Relay K 2R is made of so-called open type relay.In the present embodiment, relay K 2R and the 1st diode D1 are arranged in indoor set 20, and are connected between power wiring L and holding wire S.Particularly, the movable contact of relay K 2R is connected with power wiring L, and the stationary contact of relay K 2R is connected with the negative electrode of the 1st diode D1.The anode of the 1st diode D1 is connected with holding wire S.
Relay K 2R works the disconnected on-off action of company of switching between power wiring L and holding wire S.The break-make of relay K 2R is controlled by indoor control circuit 23.Relay K 2R is an example of on-off switch of the present utility model.The 1st diode D1 blocking-up flows into the alternating current of this direction of indoor set transmission circuit 21.In addition, the position relationship of the 1st diode D1 and relay K 2R can be also opposite.That is to say, the negative electrode of the 1st diode D1 is connected with power wiring L, and the anode of the 1st diode D1 is connected with the contact of relay K 2R, another contact of relay K 2R is connected with holding wire S.
The anode of the 2nd diode D2 is connected connected node ND1 and is connected with holding wire S with the 1st diode D1, its negative electrode is connected with signal input node ND2 in indoor set transmission circuit 21.The 2nd diode D2 blocking-up is from the alternating current of this direction of indoor set transmission circuit 21 outflows.Because bridging line N is connected with the S of AC power 40 in aircondition 1, so the alternating current of this S phase is undertaken being superimposed upon after halfwave rectifier on signal of communication between indoor set transmission circuit 21 and off-premises station transmission circuit 11 by the 2nd diode D2.Consist of an example of holding circuit of the present utility model with the 1st diode D1 and the 2nd diode D2.
-indoor control circuit 23-
＜remote controller 30 〉
30 couples of users' of remote controller operation responds, and the signal corresponding with user's operation is transferred to indoor control circuit 23.The user for example by the button of remote controller 30, can make aircondition 1 entry into service, shuts down and can regulate the design temperature of this aircondition 1 etc.Remote controller 30 can be made of the so-called wire remote control devices that carries out wiring with holding wire and indoor control circuit 23, also can be made of the so-called Digiplex that utilizes infrared ray or electric wave and indoor control circuit 23 to communicate.
The working condition of＜aircondition 〉
Fig. 2 is the state transition diagram of aircondition 1.Aircondition 1 shifts between illustrated these four kinds of states of instruction wait state, charged state, wait state and operating condition hereinafter.In addition, hereinafter, stand-by power consumption refers to " power of equipment constant consumption at non-working condition or when waiting for some input (order indication etc.) ".Particularly, in aircondition 1, the power that will consume when only carrying out the standby of remote controller 30 is stand-by power consumption.
(1) instruction wait state
The instruction wait state refers to indoor set 20 power supplies, and the state of off-premises station 10 not being powered.
As an example, the overall power that the instruction wait state of present embodiment refers to aircondition 1 is minimum state.Particularly, the instruction wait state of present embodiment is a kind of like this state, and namely off-premises station 10 is powered 20 power supplies of backward indoor set, but not to the state of the power supplies such as each circuit of off-premises station 10 inside and above-mentioned motor compressor.So, under the instruction wait state, be cut off to the power supply of each circuit of off-premises station 10, thereby can seek to reduce stand-by power consumption.
On the other hand, indoor set 20 also is in stand-by power consumption and is minimum state, in the present embodiment, carries out work after being powered by indoor power circuit 22 from the part of the signal correction of remote controller 30 with reception in indoor control circuit 23.In addition, remote controller 30 also is in stand-by power consumption and is minimum state, namely can carry out the demonstration of the regulations such as time showing and can respond the state that user key-press operates.In addition, the power consumption (stand-by power consumption) of indoor set 20 and remote controller 30 is not limited to this.
(2) charged state
Charged state refers to have formed in off-premises station 10 by the circuit of the smmothing capacitor 12b of the second outside power circuit 12 charging, and the state during this till proceed to transmit signal between off-premises station transmission circuit 11 and indoor set transmission circuit 21.At this moment, the power consumption and instruction wait state of indoor set 20 is identical.
(3) wait state
Wait state refers to that above-mentioned charged state finishes the rear state that enters when the running beginning, and wait state refers to the state that enters after the state of shutting down (as mentioned below) when running stops, in both cases, wait state all refers to the state that off-premises station 10 can be shifted to operating condition (as mentioned below) immediately.Under wait state, off-premises station transmission circuit 11 and outside control circuit 13 can both carry out work.Particularly the wait state (wait state that shut down state after enter) of running when stopping is in order to realize refrigerant pressure in motor compressor all to press or to establish for the intended operation (scheduled operation) that makes the running repeatedly starting and stopping etc., and its time is for example 10 minutes.In addition, the power consumption and instruction wait state of indoor set 20 is identical.
(4) operating condition
Operating condition is after instigating main relay 14b to connect, the state that motor compressor and outdoor fan can turn round or the state that is just turning round.So-called phase shortage energising and compressor suspend (thermo-off) state and are also contained in this state.In addition, in indoor set 20, indoor fan etc. are in operating condition, and power consumption is greater than above-mentioned various states.Remote controller 30 is in running indicating status (for example demonstrating the state of various operating conditions).
The state transitions of-aircondition 1-
Aircondition 1 when entry into service according to Fig. 2 in the order shown in solid arrow shift to operating condition from the instruction wait state, and shift to the instruction wait state according to the order shown in dotted arrow in Fig. 2 from operating condition when shutting down.Hereinafter, the transfer from the instruction wait state to operating condition is illustrated as an example.
Electrical system under＜instruction wait state 〉
At first, the state of the electrical system under the instruction wait state described.What Fig. 1 represented is the state of the relay under the instruction wait state.Under the instruction wait state, not to the coil electricity of main relay 14b, thereby the first outside power circuit 14 is not to SPM and outdoor fan motor power supplying in off-premises station 10.Also have, also not to the coil electricity of other relay K 13R, K14R, K15R.Therefore, relay K 14R and relay K 15R are in off-state.That is to say, being connected between off-premises station transmission circuit 11 and holding wire S is cut off, and power supply also is cut off.Also have, relay K 13R is in the state that normally-closed contact is connected with movable contact.That is to say, the input of the diode electrically bridge circuit 12a of the second outside power circuit 12 is connected with holding wire S.Under this state, not to the second outside power circuit 12 energisings, thereby also not to 13 power supplies of outside control circuit.As mentioned above, under the instruction wait state, off-premises station 10 can be realized zero stand-by power consumption.
In indoor set 20 under the instruction wait state, not to the coil electricity of relay K 2R, thereby relay K 2R is in off-state.That is to say, holding wire S and power wiring L are in non-electrical connection state.In addition, as mentioned above, in indoor set 20, carry out work after being powered by indoor power circuit 22 from the part of the signal correction of remote controller 30 with reception in indoor control circuit 23.
＜transfer from from the instruction wait state to charged state 〉
Fig. 3 means the figure of the state of each relay when having formed the circuit of smoothed capacitor 12b charging.Fig. 4 means the figure of the state of each relay after the transfer to charged state finishes.If for example user's remote controller 30, send and allow the instruction of aircondition 1 entry into service (for example beginning cooling operation), indoor control circuit 23 just makes the coil electricity of relay K 2R.So, just formed in aircondition 1 from the R of described three-phase alternating current mutually, (for convenience of explanation, be called power transmission path when starting) through the power transmission path till the input of power wiring L, relay K 2R, the 1st diode D1, holding wire S and relay K 13R arrival diode electrically bridge circuit 12a.Because another input of diode electrically bridge circuit 12a is connected with the S of described three-phase alternating current, so the single-phase alternating current that has carried out halfwave rectifier by the 1st diode D1 is fed to diode electrically bridge circuit 12a.That is to say, become the state (with reference to Fig. 3) of the circuit that has formed smoothed capacitor 12b charging.
At this moment, when the R of described three-phase alternating current phase current potential is higher than S phase current potential (alternating current is from R phase flow direction S phase time), the alternating current that flows into this direction of indoor set transmission circuit 21 and off-premises station 10 from power wiring L is blocked by the 1st diode D1.Also have, although indoor set transmission circuit 21 be connected with R through indoor power circuit 22, but the alternating current of this direction of outflow is blocked by the 2nd diode D2 from indoor set transmission circuit 21 to holding wire S.
When the S of described three-phase alternating current phase current potential is higher than R phase current potential (alternating current is from S phase flow direction R phase time), current direction diode electrically bridge circuit 12a.At this moment, one end of the telecommunication circuit in indoor set transmission circuit 21 is connected with the S of described three-phase alternating current through bridging line N, and the other end of this telecommunication circuit also is connected with the S of described three-phase alternating current through holding wire S, relay K 13R and diode electrically bridge circuit 12a.That is to say, indoor set transmission circuit 21 only with three-phase alternating current in one be connected.Therefore, even holding wire S is used for transmitting alternating current, this alternating current can not flow to the telecommunication circuit in indoor set transmission circuit 21 yet.So, just can protect off-premises station transmission circuit 11 to exempt from superpotential destruction.
If smmothing capacitor 12b is recharged, make the input of Switching Power Supply 12c is stablized, thereby Switching Power Supply 12c can exports the DC voltage (being in this example 5V) of regulation, outside control circuit 13 startups.The outside control circuit 13 that has started makes the coil electricity of relay K 13R, allows normally opened contact and movable contact become connection status.Thus, the power transmission path of the input of diode electrically bridge circuit 12a in off-premises station 10 is connected with the R of described three-phase alternating current.That is to say, outside control circuit 13 switches to the state (with reference to Fig. 4) of being powered by AC power 40 without holding wire S.Thus, in aircondition 1, just completed the transfer to described charged state.
＜transfer from from charged state to wait state 〉
Fig. 5 means the figure of the state of each relay when finishing to the transfer of wait state.In indoor set 20, when count through official hour (outside control circuit 13 starts required enough time) from engage relay K2R after, relay K 2R is disconnected.Thus, just holding wire S can be used for receiving and transmitted signal.
In off-premises station 10, after relay K 2R disconnected, outside control circuit 13 was just connected relay K 15R, becomes to the state of off-premises station transmission circuit 11 power supplies, and relay K 14R is connected.Thus, the telecommunication circuits in off-premises station transmission circuit 11 just are connected with indoor set transmission circuit 21 with bridging line N through holding wire S, become the state that can communicate with indoor set transmission circuit 21.Thus, aircondition 1 finishes described charged state, and becomes the state (being wait state) that can shift to operating condition immediately.
＜transfer from from wait state to operating condition 〉
Fig. 6 means the figure of the state of each relay under operating condition.When shifting from wait state to operating condition, outside control circuit 13 is connected two main relay 14b.Thus, to described SPM and outdoor fan motor power supplying, motor compressor etc. become operating condition by the first outside power circuit 14, thereby can for example freeze.
The effect of＜present embodiment 〉
As mentioned above, according to present embodiment, can make each circuit in off-premises station 10 keep zero stand-by power consumption under the instruction wait state, thereby can effectively seek to reduce stand-by power consumption.And, use the on-off switch that is consisted of by the open type relay and the holding circuit that is consisted of by diode to replace the conversion hysteria relay that uses in electrical system relevant to the work that reduces stand-by power consumption in existing apparatus.For this reason, in the present embodiment, the quantity of carrying out the related relay contact of handover operation reduces, and can prevent the contact melted that causes because of arc discharge etc., makes reliability be improved.
Also have; in general the cost of open type relay will be lower than the conversion hysteria relay; thereby even the holding circuit that is made of diode is set again, also can realize that cost expresses expectation lower than the cost degradation of existing aircondition to the aircondition 1 of present embodiment.
(other embodiment)
In addition, also can use semiconductor switch (such as transistor etc.) to replace relay K 2R.
Also have, also can be with single-phase alternating current as commercial ac power source 40.
-industrial applicability-
The utility model for aircondition of great use.
Claims (4)
1. aircondition, send from the holding wire (S) of the power wiring (L) that exchanges the alternating current of power supply (40), signal transmission and be arranged between the off-premises station (10) and indoor set (20) of this aircondition for transmitting described alternating current and transmitting the bridging line (N) that described signal shared, it is characterized in that:
This aircondition comprises:
Indoor set transmission circuit (21), it is arranged in described indoor set (20), carries out the sending and receiving of described signal according to the potential difference between described holding wire (S) and described bridging line (N) and described off-premises station (10),
On-off switch (K2R), its between described holding wire (S) and described power wiring (L) be connected and disconnection is switched,
Holding circuit (D1, D2) when coupling together, stops alternating current to flow to described indoor set transmission circuit (21) when described holding wire (S) and described power wiring (L), and
outside control circuit (13), it is arranged in described off-premises station (10), when described holding wire (S) be connected power wiring (L) when coupling together this outside control circuit (13) through with described holding wire (S) be connected in phase line and the described off-premises station (10) that is connected of the described alternating current that power wiring (L) connects be connected the phase line of the identical described alternating current of the phase line of bridging line (N) connection be powered after startup, switch to the state of being powered by described AC power (40) without described power wiring (L) and described holding wire (S) after starting.
2. aircondition according to claim 1 is characterized in that:
Described holding circuit (D1, D2) comprises the 1st diode (D1) and the 2nd diode (D2); the 1st diode (D1) blocking-up flows into the alternating current of this direction of described indoor set transmission circuit (21), and the 2nd diode (D2) blocking-up is from the alternating current of this direction of described indoor set transmission circuit (21) outflow.
3. aircondition according to claim 2 is characterized in that:
Described the 1st diode (D1) is connected with described on-off switch (K2R) between described holding wire (S) and described power wiring (L),
One end of described the 2nd diode (D2) is connected with the signal input node (ND2) of described indoor set transmission circuit (21), and the other end of the 2nd diode (D2) is connected with described holding wire (S).
4. the described aircondition of any one according to claim 1 to 3 is characterized in that:
Described on-off switch (K2R) is the open type relay.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011287125A JP2013137119A (en) | 2011-12-28 | 2011-12-28 | Air conditioning device |
| JP2011-287125 | 2011-12-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202973440U true CN202973440U (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220719918 Expired - Fee Related CN202973440U (en) | 2011-12-28 | 2012-12-24 | Air conditioning device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2013137119A (en) |
| CN (1) | CN202973440U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066385A (en) * | 2015-08-25 | 2015-11-18 | 深圳创维空调科技有限公司 | Standby power consumption control system for outdoor unit of air conditioning chamber and outdoor unit |
| CN105278356A (en) * | 2014-06-16 | 2016-01-27 | 青岛海尔空调器有限总公司 | Air conditioner and low-standby-power-consumption circuit thereof |
| CN105337598A (en) * | 2014-07-29 | 2016-02-17 | 青岛海尔空调器有限总公司 | Air conditioner, and circuit having low stand-by power consumption and control method thereof |
| CN108168048A (en) * | 2017-11-16 | 2018-06-15 | 青岛海尔空调器有限总公司 | Identify the method, apparatus and air-conditioning of air-conditioning circuit |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105159146B (en) * | 2014-06-16 | 2017-09-05 | 青岛海尔空调器有限总公司 | A kind of circuit of air conditioner and its low standby power loss |
| JP6919890B2 (en) | 2017-07-21 | 2021-08-18 | 株式会社日立ハイテクサイエンス | Display device for optical analyzer |
| CN108488948B (en) * | 2018-06-05 | 2023-11-14 | 珠海格力电器股份有限公司 | Air conditioner, air conditioner control system and outdoor unit switch circuit |
| JP2022185181A (en) | 2021-06-02 | 2022-12-14 | ダイキン工業株式会社 | Indoor machine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3019844B1 (en) * | 1998-10-05 | 2000-03-13 | ダイキン工業株式会社 | Separate type air conditioner |
| JP2001012782A (en) * | 1999-06-29 | 2001-01-19 | Daikin Ind Ltd | Separate type air conditioner |
| JP4547950B2 (en) * | 2004-03-15 | 2010-09-22 | ダイキン工業株式会社 | Air conditioner and control method |
| JP4833168B2 (en) * | 2007-08-09 | 2011-12-07 | シャープ株式会社 | Air conditioner |
-
2011
- 2011-12-28 JP JP2011287125A patent/JP2013137119A/en active Pending
-
2012
- 2012-12-24 CN CN 201220719918 patent/CN202973440U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105278356A (en) * | 2014-06-16 | 2016-01-27 | 青岛海尔空调器有限总公司 | Air conditioner and low-standby-power-consumption circuit thereof |
| CN105278356B (en) * | 2014-06-16 | 2017-10-13 | 青岛海尔空调器有限总公司 | A kind of circuit of air conditioner and its low standby power loss |
| CN105337598A (en) * | 2014-07-29 | 2016-02-17 | 青岛海尔空调器有限总公司 | Air conditioner, and circuit having low stand-by power consumption and control method thereof |
| CN105066385A (en) * | 2015-08-25 | 2015-11-18 | 深圳创维空调科技有限公司 | Standby power consumption control system for outdoor unit of air conditioning chamber and outdoor unit |
| CN105066385B (en) * | 2015-08-25 | 2018-03-20 | 深圳创维空调科技有限公司 | A kind of control system for standby power consumption of air-conditioner outdoor unit and outdoor unit |
| CN108168048A (en) * | 2017-11-16 | 2018-06-15 | 青岛海尔空调器有限总公司 | Identify the method, apparatus and air-conditioning of air-conditioning circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2013137119A (en) | 2013-07-11 |
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