CN204704930U - Aircondition - Google Patents
Aircondition Download PDFInfo
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- CN204704930U CN204704930U CN201520316092.4U CN201520316092U CN204704930U CN 204704930 U CN204704930 U CN 204704930U CN 201520316092 U CN201520316092 U CN 201520316092U CN 204704930 U CN204704930 U CN 204704930U
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Abstract
The purpose of this utility model is to provide a kind of aircondition, just in case combustible refrigerant there occurs leakage, also can suppress, in formation combustible concentration region, indoor, can also suppress manufacturing cost.This aircondition has: kind of refrigeration cycle (40), and it makes combustible refrigerant circulate; Indoor set (1), it at least accommodates the indoor heat converter (7) of kind of refrigeration cycle (40), and wherein indoor set (1) possesses: suction inlet (112), the air in its suction chamber; Blow-off outlet (113), it is arranged on the position different from the height of suction inlet (112), and the air that will suck from suction inlet (112) is to indoor blowout; And indoor Air Blast fan (7f), when to indoor set (1) supply electric power, indoor Air Blast fan (7f) operates all the time, and at the air stream that indoor generation circulates at least in the vertical direction.
Description
Technical field
The utility model relates to aircondition.
Background technology
In the past, as the cold-producing medium that aircondition uses, it is the HFC cold-producing medium using non-flame properties R410A such.This R410A HCFC cold-producing medium such from existing R22 is different, and its ozone layer depleting potential (hereinafter referred to as " ODP ") is zero, does not therefore damage the ozone layer.But R410A has the high such character of global warming potential (hereinafter referred to as " GWP ").Therefore as the ring preventing global warming, the research changed to the cold-producing medium that GWP is low from the HFC cold-producing medium that the GWP that R410A is such is high constantly advances.
As the candidate of the cold-producing medium of so low GWP, have the R290 (C as natural refrigerant
3h
8: propane), R1270 (C
3h
6: propylene) such HC cold-producing medium.But R290, R1270 are different from non-flame properties R410A, there is the combustibility (by force combustion property) of strong combustion rank.Therefore, when using R290, R1270 as cold-producing medium, should be noted that the leakage of cold-producing medium.
In addition, as the candidate of low GWP cold-producing medium, have the HFC cold-producing medium of the double bond in the composition without carbon, the R32 (CH that such as GWP is lower than R410A
2f
2; Difluoromethane).
In addition, as same candidate cold-producing medium, have halogenated hydrocarbons, this halogenated hydrocarbons and R32 are similarly the one of HFC cold-producing medium, and have the double bond of carbon in the composition.As this halogenated hydrocarbons, such as, there is HFO-1234yf (CF
3cF=CH
2; Tetrafluoeopropene), HFO-1234ze (CF
3-CH=CHF).In addition, in order to the HFC cold-producing medium not having the double bond of carbon like that in the composition with R32 is distinguished, there is the HFC cold-producing medium of the double bond of carbon in the composition, mostly use " O " of alkene (unsaturated hydrocarbons of the double bond with carbon is called alkene), and show as " HFO ".
The HFC cold-producing medium (comprising HFO cold-producing medium) of low GWP like this, although the HC cold-producing medium unlike the R290 as natural refrigerant has combustion property by force like that, but different from non-flame properties R410A, there is the combustibility (micro-combustion) of micro-combustion rank.Therefore the leakage that should be noted that cold-producing medium same with R290.Below, the flammable cold-producing medium will with more than micro-combustion rank (such as, being more than 2L in the classification of ASHRAE34) is called " combustible refrigerant ".
When combustible refrigerant leaks to the interior space, likely make indoor refrigerant concentration increase, and cause the possibility forming combustible concentration region.
Following aircondition is described in patent document 1, that is: in the aircondition using combustible refrigerant, gas sensor is possessed at the outer surface of indoor set, for detecting combustible refrigerant gas, indoor set is put type in the end, and the bottom of gas sensor machine disposed in the interior.If it is more than a reference value that the sensor of gas sensor detects voltage, then the control part of this aircondition is judged as that combustible refrigerant there occurs leakage, and is given the alarm by siren immediately.User can know that combustible refrigerant there occurs the situation of leakage thus, thus the process of the attendant etc. that can take to take a breath to indoor, calling out to repair.In addition, if be judged as, combustible refrigerant there occurs leakage, then control part carries out the control of the running stopping refrigerant loop immediately.Even if this aircondition is in running thus, also can utilizes the valve be present on refrigerant loop, cut off refrigerant loop immediately, thus combustible refrigerant can be suppressed to leak in large quantities.
Patent document 1: Japan Patent No. 4639451 publication
But, in the aircondition described in patent document 1, need the gas sensor that combustible refrigerant gas is detected, therefore there is the problem causing manufacturing cost to raise.In addition, the user that combustible refrigerant leaks is known by alarm, the disposal of attendant etc. although can take to take a breath to indoor, calling out to repair, but there are the following problems: until during taking above-mentioned disposal, general in the indoor as enclosure space, the combustible refrigerant of leakage likely can form combustible concentration region.In addition, owing to being judged as that combustible refrigerant there occurs the control part of leakage, carry out the control of the running stopping refrigerant loop immediately, therefore, it is possible to suppress combustible refrigerant to leak in large quantities, but a certain amount of combustible refrigerant cannot be avoided to leak.Therefore there are the following problems: general in the indoor as enclosure space, the combustible refrigerant of leakage likely can form combustible concentration region.
Utility model content
The utility model is in order at least one in solving the problem is made, and object is to provide a kind of just in case combustible refrigerant there occurs leakage, also can suppress, in formation combustible concentration region, indoor, can also suppress the aircondition of manufacturing cost.
Aircondition of the present utility model has: kind of refrigeration cycle, and it makes combustible refrigerant circulate; Indoor set, it at least accommodates the indoor heat converter of described kind of refrigeration cycle, and described indoor set possesses: suction inlet, the air in its suction chamber; Blow-off outlet, it is arranged on the position different from the height of described suction inlet, by the air that sucks from described suction inlet to indoor blowout; And Air Blast fan, when to described indoor set supply electric power, described Air Blast fan operates all the time, at the air stream that indoor generation circulates at least in the vertical direction.
Preferably, described indoor set also possesses operating portion, the running that this operating portion at least can carry out making this indoor set be in operating condition starts operation and makes this indoor set be in the running end operation of halted state, when described indoor set is in described halted state, described Air Blast fan also operates.
Preferably, when described indoor set is in described halted state, the air quantity of described Air Blast fan is: when described indoor set is in described operating condition described Air Blast fan minimum air quantity below.
Preferably, when described indoor set is in described halted state, the blow-off direction from the air of described blow-off outlet is set as: towards the ceiling face of indoor or the direction of metope.
Preferably, described blow-off outlet comprises: the first blow-off outlet and the second blow-off outlet being arranged on the position different from described first blow-off outlet, described indoor set also possesses switching part, this switching part switches as follows, that is: the air sucked from described suction inlet is made, blow out from arbitrary blow-off outlet of described first blow-off outlet and described second blow-off outlet, when described indoor set is in described operating condition, from described first blow-off outlet to indoor blow out air, when described indoor set is in described halted state, from described second blow-off outlet to indoor blow out air.
Preferably, described first blow-off outlet is arranged at the front surface top of the framework of described indoor set, and described second blow-off outlet is arranged at the end face of the framework of described indoor set.
Preferably, described indoor set is the indoor set putting type in the end being arranged at indoor ground.
Preferably, described suction inlet is arranged at the bottom of the framework of described indoor set, and described blow-off outlet is arranged at the top of the framework of described indoor set.
According to the utility model, the air stream of indoor above-below direction cocycle can be created on all the time.Therefore just in case combustible refrigerant there occurs leakage, also can suppress in formation combustible concentration region, indoor.In addition, according to the utility model, without the need to detecting the sensor of refrigrant leakage, therefore, it is possible to suppress the manufacturing cost of aircondition.
Accompanying drawing explanation
Fig. 1 is the refrigerant loop figure of the schematic configuration of the aircondition representing embodiment 1 of the present utility model.
Fig. 2 is the front view of the surface structure of the indoor set 1 of the aircondition representing embodiment 1 of the present utility model.
Fig. 3 is the in-built front view of the indoor set 1 of the aircondition representing embodiment 1 of the present utility model.
Fig. 4 is the in-built side view of the indoor set 1 of the aircondition representing embodiment 1 of the present utility model.
Fig. 5 is the flow chart of the example representing the process performed by control part 31 in the aircondition of embodiment 1 of the present utility model.
Fig. 6 is the stereogram of the schematic configuration of the indoor set 1 of the aircondition representing embodiment 2 of the present utility model.
Description of reference numerals: 1... indoor set; 2... off-premises station; 3... compressor; 4... flow of refrigerant circuit switching device; 5... outdoor heat converter; The outdoor Air Blast fan of 5f...; 6... decompressor; 7... indoor heat converter; The indoor Air Blast fan of 7f...; 10a, 10b... extend pipe arrangement; 11... pipe arrangement is sucked; 12... pipe arrangement is discharged; 13a, 13b... extend pipe arrangement connection valve; 14a, 14b, 14c... service port; 15a, 15b... flare type joint; 24... drip tray; 25... electrical appliance kit; 30,31... control part; 32... operating portion; 40... kind of refrigeration cycle; 81... wind path; 81a... wind path side room; 81b... wind path secondary side room; 91... inhaled air temperature sensor; 92... heat exchanger entrance temperature sensor; 93... heat-exchanger temperature sensor; 111... framework; 112... suction inlet; 113,114... blow-off outlet; 113a, 114a... flashboard.
Detailed description of the invention
Embodiment 1
The aircondition of embodiment 1 of the present utility model is described.Fig. 1 is the refrigerant loop figure of the schematic configuration of the aircondition representing present embodiment.In addition, comprise Fig. 1 in figures in the following, there is the situation that the size relationship of each component parts, shape etc. are different from reality.
As shown in Figure 1, aircondition has the kind of refrigeration cycle 40 making refrigerant circulation.Kind of refrigeration cycle 40 has following structure, that is: via refrigerant piping, successively compressor 3, flow of refrigerant circuit switching device 4, outdoor heat converter 5 (heat source side heat exchanger), decompressor 6 and indoor heat converter 7 (load-side heat exchanger) are connected for ring-type.In addition, aircondition has: be such as arranged at indoor indoor set 1 and be such as arranged at outdoor off-premises station 2.Between indoor set 1 and off-premises station 2, connect via prolongation pipe arrangement 10a, 10b of the part as refrigerant piping.
As the cold-producing medium circulated in kind of refrigeration cycle 40, use micro-combustion cold-producing mediums such as R32, HFO-1234yf, HFO-1234ze or the combustion property by force such as R290, R1270 cold-producing medium.Above-mentioned cold-producing medium can use as unitary system cryogen, also can as being mixed with two or more mix refrigerants to use.
Compressor 3 compresses sucked low pressure refrigerant, and the fluid device that it can be used as high-pressure refrigerant to discharge.Flow of refrigerant circuit switching device 4 is when cooling operation with when heating running, to the device that the flow direction of the cold-producing medium in kind of refrigeration cycle 40 switches.As flow of refrigerant circuit switching device 4, such as, use cross valve.Outdoor heat converter 5 is the heat exchangers playing function when cooling operation as condenser, playing function when heating running as evaporimeter.In outdoor heat converter 5, carry out in the cold-producing medium of internal circulation, the heat exchange with the air (extraneous air) of being blown by outdoor Air Blast fan 5f described later.Decompressor 6 reduces pressure to high-pressure refrigerant and becomes the device of low pressure refrigerant.As decompressor 6, such as, use the electric expansion valve etc. that can regulate aperture.Indoor heat converter 7 is the heat exchangers playing function when cooling operation as evaporimeter, playing function when heating running as condenser.In indoor heat converter 7, carry out in the cold-producing medium of internal circulation, the heat exchange with the air of being blown by indoor Air Blast fan 7f described later.Wherein, cooling operation is the running of the cold-producing medium supplying low-temp low-pressure to indoor heat converter 7, heats the running that running is the cold-producing medium supplying HTHP to indoor heat converter 7.
Contain at off-premises station 2: compressor 3, flow of refrigerant circuit switching device 4, outdoor heat converter 5 and decompressor 6.In addition, the outdoor Air Blast fan 5f supplying extraneous air to outdoor heat converter 5 is contained at off-premises station 2.Outdoor Air Blast fan 5f is arranged opposedly with outdoor heat converter 5.By making outdoor Air Blast fan 5f rotate, thus generate the air stream through outdoor heat converter 5.Such as propeller type fan is used as outdoor Air Blast fan 5f.In the air stream that outdoor Air Blast fan 5f generates at this outdoor Air Blast fan 5f, such as, be configured at the downstream of outdoor heat converter 5.
At off-premises station 2, be configured with as refrigerant piping: the refrigerant piping that the prolongation pipe arrangement connection valve 13a of gas side (during cooling operation) is connected with flow of refrigerant circuit switching device 4, be connected to the suction pipe arrangement 11 of the suction side of compressor 3, be connected to the discharge pipe arrangement 12 of the discharge side of compressor 3, by the refrigerant piping that flow of refrigerant circuit switching device 4 is connected with outdoor heat converter 5, by the refrigerant piping that outdoor heat converter 5 is connected with decompressor 6, and by refrigerant piping that decompressor 6 is connected with the prolongation pipe arrangement connection valve 13b of hydraulic fluid side (during cooling operation).Extend pipe arrangement connection valve 13a to be made up of the two-port valve that can carry out the switching opening and close, in its one end, flare type joint is installed.In addition, extend pipe arrangement connection valve 13b to be made up of the triple valve that can carry out the switching opening and close, the service port 14a that when kind of refrigeration cycle 40 (operation from cold-producing medium to) before filling uses is installed in its one end when vacuumizing, at the other end, flare type joint is installed.
Under any state when cooling operation and when heating running, in discharge pipe arrangement 12, all flowing has the gas refrigerant of the HTHP compressed by compressor 3.Under any state when cooling operation and when heating running, there is the cold-producing medium (gas refrigerant or two-phase system cryogen) of the low-temp low-pressure through evaporation sucking in pipe arrangement 11 all flowings.Be connected with the service port 14b of the band flare type joint of low-pressure side at suction pipe arrangement 11, be connected with the service port 14c of on high-tension side band flare type joint at discharge pipe arrangement 12.Service port 14b, 14c are used for when aircondition is installed, repairing time test running when, Bonding pressure meter also measures operating pressure and used.
Off-premises station 2 is provided with control part 30, and the action of this control part 30 pairs of compressors 3, flow of refrigerant circuit switching device 4, decompressor 6, outdoor Air Blast fan 5f etc. controls.Control part 30 has microcomputer, and this microcomputer possesses CPU, ROM, RAM, I/O port etc.
Indoor heat converter 7 is contained at indoor set 1.In addition, be provided with to the air fed indoor Air Blast fan 7f of indoor heat converter 7 at indoor set 1.By making indoor Air Blast fan 7f rotate, thus generate the air stream through indoor heat converter 7.As indoor Air Blast fan 7f, according to the form of indoor set 1, and use cross flow fan, turbofan, multi blade fan or propeller type fan etc.The indoor Air Blast fan 7f of this example, is configured at the upstream side of outdoor heat converter 5, but also can be configured at the downstream of outdoor heat converter 5 in the air stream that this indoor Air Blast fan 7f generates.
In addition, in indoor set 1, be provided with following sensor, that is: inhaled air temperature sensor 91, it detects the temperature of the room air sucked indoor; Heat exchanger entrance temperature sensor 92, it detects the refrigerant temperature of the inlet portion (heating export department during running) during indoor heat converter 7 cooling operation; Heat-exchanger temperature sensor 93, its refrigerant temperature to the two-phase portion of indoor heat converter 7 (evaporating temperature or condensation temperature) detects.The sensor class can to control part 31 output detections signal described later.
The connecting portion be connected with the prolongation pipe arrangement 10a of gas side in the refrigerant piping being arranged at indoor set 1, is provided with for connecting the flare type joint 15a extending pipe arrangement 10a.In addition, the connecting portion be connected with the prolongation pipe arrangement 10b of hydraulic fluid side in the refrigerant piping being arranged at indoor set 1, is provided with for connecting the flare type joint 15b extending pipe arrangement 10b.
The control part 31 that the action of indoor Air Blast fan 7f etc. is controlled is provided with at indoor set 1.Control part 31 has microcomputer, and this microcomputer possesses CPU, ROM, RAM, I/O port etc.Between the control part 31 of indoor set and the control part 30 of off-premises station 2, connect via order wire, thus mutually can carry out data communication.In addition, be provided with operating portion 32 in indoor set 1, this operating portion 32 can communicate between control part 31.In operating portion 32, user can carry out: the running making indoor set 1 (aircondition) be in operating condition starts to operate, make indoor set 1 be in the running end operation of halted state, the switching of operation mode (cooling operation, heat running, dehumidifying running, air-supply running etc.), indoor design temperature and set the setting etc. of air quantity.
Next, the action of the kind of refrigeration cycle 40 of aircondition is described.First, action during cooling operation is described.In FIG, the flow direction of cold-producing medium when solid arrow represents cooling operation.In cooling operation, refrigerant loop is configured to: utilize flow of refrigerant circuit switching device 4, switch refrigerant flow path as indicated by the solid line, and the cold-producing medium of low-temp low-pressure is flowed in indoor heat converter 7.
From the gas refrigerant of the HTHP that compressor 3 is discharged, via flow of refrigerant circuit switching device 4, first inflow outdoor heat exchanger 5.In cooling operation, outdoor heat converter 5 plays function as condenser.That is, in outdoor heat converter 5, carry out in the cold-producing medium of internal circulation, the heat exchange with the air (extraneous air) of being blown by outdoor Air Blast fan 5f, the condensation heat of cold-producing medium is dispelled the heat to wind pushing air.Flow into the condensation of refrigerant of outdoor heat converter 5 thus and become the liquid refrigerant of high pressure.The liquid refrigerant of high pressure flows into decompressor 6, and decompression and become the two-phase system cryogen of low pressure.The two-phase system cryogen of low pressure, via prolongation pipe arrangement 10b, flows into the indoor heat converter 7 of indoor set 1.In cooling operation, indoor heat converter 7 plays function as evaporimeter.That is, in indoor heat converter 7, carry out in the cold-producing medium of internal circulation, the heat exchange with the air (room air) of being blown by indoor Air Blast fan 7f, from the heat of evaporation of wind pushing air absorption refrigeration agent.Thus, flow into the cold-producing medium evaporation of indoor heat converter 7, and become gas refrigerant or the two-phase system cryogen of low pressure.In addition, the air of being blown by indoor Air Blast fan 7f, is cooled because of the heat-absorbing action of cold-producing medium.The gas refrigerant of the low pressure of evaporating in indoor heat converter 7 or two-phase system cryogen, via prolongation pipe arrangement 10a and flow of refrigerant circuit switching device 4, and sucked by compressor 3.The cold-producing medium being drawn into compressor 3 is compressed, thus becomes the gas refrigerant of HTHP.Repeatedly carry out with cocycle in cooling operation.
Next, action when heating running is described.In FIG, dotted arrow represents the flow direction of cold-producing medium when heating running.Heating in running, refrigerant loop is configured to: utilize flow of refrigerant circuit switching device 4, switch as represented by dashed line to refrigerant flow path, and the cold-producing medium of HTHP is flowed in indoor heat converter 7.When heating running, cold-producing medium flows to the direction contrary with during cooling operation, and indoor heat converter 7 plays function as condenser.That is, in indoor heat converter 7, carry out in the cold-producing medium of internal circulation, the heat exchange with the air of being blown by indoor Air Blast fan 7f, the condensation heat of cold-producing medium is dispelled the heat to wind pushing air.Thus, the air of being blown by indoor Air Blast fan 7f, is heated because of the thermolysis of cold-producing medium.
Fig. 2 is the front view of the surface structure of the indoor set 1 of the aircondition representing present embodiment.Fig. 3 is the front view of the internal structure (taking off the state after front surface panel) representing indoor set 1.Fig. 4 is the in-built side view representing indoor set 1.The left of Fig. 4 represents the front-surface side (indoor) of indoor set 1.In the present embodiment, type indoor set 1 is put at the end exemplifying the ground of the indoor be arranged at as air-conditioning object space as indoor set 1.In addition, each component parts position relationship each other (such as, upper and lower relation etc.) is in the following description the relation be set to by indoor set 1 under the state that can use in principle.
As shown in Figure 2 to 4, indoor set 1 possesses framework 111, and this framework 111 has the rectangular-shaped shape of lengthwise.Suction inlet 112 is formed with, for the air in suction chamber in the front surface bottom of framework 111.The suction inlet 112 of this example, on the above-below direction of framework 111, is arranged at than central portion position on the lower, and is arranged at the position of Near Ground.On the front surface top of framework 111, namely in the position higher than the height of suction inlet 112 (such as, than central portion position by the top on the above-below direction of framework 111), be formed with blow-off outlet 113, for the air that will suck from suction inlet 112 to indoor blowout.Than blow-off outlet 113 position on the lower, operating portion 32 is provided with than suction inlet 112 position by the top in the front surface of framework 111.As mentioned above, in operating portion 32, the running carrying out indoor set 1 (aircondition) by the operation of user starts to operate, the switching of running end operation, operation mode, design temperature and setting air quantity setting etc.In the present embodiment, as following, even if by the operation at operating portion 32, indoor set 1 is switched to halted state, and indoor Air Blast fan 7f also can not stop.
Between suction inlet 112 and blow-off outlet 113, the wind path 81 becoming air flow circuit is formed with in the inside of framework 111.Indoor heat converter 7 and indoor Air Blast fan 7f is configured with at wind path 81.Indoor Air Blast fan 7f makes the device that in wind path, the air upwards of generation from suction inlet 112 towards blow-off outlet 113 flows.Wind path 81 is divided into: the wind path secondary side room 81b in the wind path side room 81a becoming the upstream side of indoor heat converter 7 in air flowing and the downstream becoming indoor heat converter 7.The indoor Air Blast fan 7f of this example is configured at the upstream side of wind path side room 81a, i.e. indoor heat converter 7, but also can be configured at the downstream of wind path secondary side room 81b, i.e. indoor heat converter 7.
The below of indoor heat converter 7 is provided with drip tray 24, and this drip tray 24 is received in the condensed water after the surface condensation of indoor heat converter 7.The below of drip tray 24 is provided with electrical appliance kit 25, for accommodating the microcomputer, various electric component, substrate etc. that such as form control part 31 grade.
Fig. 5 is the flow chart of the example representing the control treatment performed by control part 31 (or control part 30).When starting to supply electric power (comprising stand-by electric) to indoor set 1 (such as, when indoor set 1 being connected to power supply via power line etc.), perform this control treatment.
First, in the step S1 of Fig. 5, start the running carrying out indoor Air Blast fan 7f.Now, the air quantity of indoor Air Blast fan 7f is set as with gentle breeze (during common operation of air conditioner such as, with indoor set 1 (cooling operation, heat operate, dehumidify operate, blowing operates) in identical or less than it air quantity of minimum air quantity).In this moment, because the running not carrying out the indoor set 1 undertaken by operating portion 32 starts operation, although therefore start the running carrying out indoor Air Blast fan 7f, indoor set 1 (aircondition) is in halted state.Wherein, the halted state of the indoor set 1 in present embodiment also can show as holding state, resting state, non-operation of air conditioner state etc.
Next, in step s 2, running commencing signal is determined whether it has received.Wherein, when running commencing signal refers to that the running utilizing operating portion 32 to carry out indoor set 1 user starts to operate, the signal exported from operating portion 32 to control part 31.When receiving running commencing signal, the state making indoor set 1 is operating condition, and moves to the process of step S3.When not receiving running commencing signal, carry out standby, till receiving running commencing signal.
Carry out operating condition process in step s3.In operating condition process, based on the set information in operating portion 32 (such as, operation mode information, design temperature information, setting air quantity information etc.) and the detection signal etc. of various sensor class from kind of refrigeration cycle 40, carrys out the action of the air quantity of Air Blast fan 7f in control room and kind of refrigeration cycle 40 etc.
Such as, when cooling operation, under the state (temperature controller open mode) of the intake air temperature detected by inhaled air temperature sensor 91 higher than design temperature, compressor 3 is operated, under the state (temperature controller closed condition) of intake air temperature lower than design temperature, compressor 3 is stopped.Wherein, in order to prevent the oscillation action of compressor 3, the difference of regulation can be set in design temperature.Under any state of temperature controller open mode and temperature controller closed condition, all the air quantity of indoor Air Blast fan 7f is set as the setting air quantity in operating portion 32.
In addition, such as when heating running, under the state (temperature controller open mode) of intake air temperature lower than design temperature, compressor 3 is operated, under the state (temperature controller closed condition) of intake air temperature higher than design temperature, compressor 3 is stopped.Wherein, in order to prevent the oscillation action of compressor 3, the difference of regulation also can be set in design temperature.The air quantity of indoor Air Blast fan 7f is under temperature controller open mode, is set as the setting air quantity in operating portion 32, under temperature controller closed condition, is set as minimum air quantity.
In the next step S4 of step S3, determine whether it has received running end signal.Wherein, running end signal refers to when user utilizes operating portion 32 to carry out the running end operation of indoor set 1, the signal exported from operating portion 32 to control part 31.When receiving running end signal, making the state of indoor set 1 become halted state, and moving to the process of step S5.When not receiving running end signal, turn back to step S3.
In step s 5, halted state process is carried out.In halted state process, the action of kind of refrigeration cycle 40 grade is stopped, and the air quantity of indoor Air Blast fan 7f is set as gentle breeze (identical with the air quantity set in step S1).Afterwards, turn back to step S2, carry out standby, till receiving running commencing signal.
As mentioned above, in the present embodiment, even if pass through the operation of operating portion 32, indoor set 1 (aircondition) is set as any state in operating condition and halted state, when supplying electric power to indoor set 1, indoor Air Blast fan 7f operates all the time.That is, in the present embodiment, indoor Air Blast fan 7f cannot be stopped by the operation at operating portion 32, only otherwise cut off and supply electric power to indoor set 1, then indoor Air Blast fan 7f proceeds to operate.
In addition, the suction inlet 112 of indoor set 1 is arranged at the bottom of framework 111, and blow-off outlet 113 is arranged at the top of framework 111.Thus in the indoor of the air-conditioning object space of formation indoor set 1, regardless of the state (operating condition, halted state) of indoor set 1, can generate all the time at least at the air stream of above-below direction (short transverse) cocycle.
As mentioned above, in the present embodiment, as the cold-producing medium circulated in kind of refrigeration cycle 40, the combustible refrigerants such as R32, HFO-1234yf, HFO-1234ze, R290, R1270 are used.Therefore, just in case when there occurs refrigrant leakage in indoor set 1, likely make indoor refrigerant concentration increase, and cause forming combustible concentration region.
Above-mentioned combustible refrigerant, under atmospheric pressure has the density larger than air.Therefore in the position that the height of distance flooring is higher, when there is refrigrant leakage, the cold-producing medium of leakage spreads in decline, and refrigerant concentration becomes even in the interior space, and therefore refrigerant concentration is difficult to raise.In contrast, in the position lower apart from the height of flooring, when there is refrigrant leakage, the cold-producing medium of leakage is accumulated in the lower position of Near Ground, therefore refrigerant concentration easily raises local.The possibility forming combustible concentration region is caused relatively to raise thus.
In the present embodiment, due to the air stream of indoor above-below direction cocycle can be created on all the time, so can air in the vertical direction in teeter chamber.Therefore, just in case there is the leakage of combustible refrigerant at indoor set 1, the air of the air of the position that the height that also can easily easily be raised by refrigerant concentration is lower, position that the height being difficult to raise with refrigerant concentration is higher mixes.Therefore, it is possible to the combustible refrigerant of Leakage prevention is accumulated in the lower position of the height of Near Ground, thus can suppress to form combustible concentration region.Particularly when type indoor set 1 is put at the end, the position that refrigrant leakage occurs is easily the position that Near Ground is lower, thus the cold-producing medium leaked easily is accumulated in the lower position of Near Ground, therefore effective especially.
In addition, in the present embodiment, without the need to detecting the sensor of refrigrant leakage, therefore, it is possible to suppress indoor set 1 and comprise its manufacturing cost of aircondition.
In addition, in the present embodiment, when indoor set 1 is in halted state, the air quantity of indoor Air Blast fan 7f is gentle breeze (air quantity that minimum air quantity when being in operating condition with indoor set 1 is identical or less than it), therefore, it is possible to make user be difficult to notice that indoor Air Blast fan 7f operates.Therefore, it is possible to prevent from thinking that the user that aircondition stops feels uncomfortable.
In the control by control part 31 grade, when blow-off direction from the air of blow-off outlet 113 is changed in the vertical direction (such as, control by control part 31 can be regulated above-below direction towards up-down wind direction board be arranged at blow-off outlet 113 situation or the control by control part 31 can be regulated the above-below direction of blow-off outlet 113 self towards situation etc.), when indoor set 1 is in halted state, the blow-off direction of the air from blow-off outlet 113 can be changed into upper direction (direction towards the ceiling face of indoor).Thereby, it is possible to the blow-off direction of air is when making indoor set 1 be in halted state: the direction (keep away customs and morals of the people to) directly not blowing to user, therefore, it is possible to make user more be difficult to notice that indoor Air Blast fan 7f operates.
In addition, in the control by control part 31 grade, when blow-off direction from blow-off outlet 113 is changed further in the lateral direction (such as, control by control part 31 can be regulated left and right directions towards left and right wind direction board be arranged at the situation of blow-off outlet 113, or the control by control part 31 can be regulated the left and right directions of blow-off outlet 113 self towards situation etc.), when indoor set 1 is in halted state, also the blow-off direction of the air from blow-off outlet 113 can be changed into either party (direction towards indoor wall) in left and right directions.Thereby, it is possible to the blow-off direction of air is when making indoor set 1 be in halted state: the direction directly not blowing to user, therefore, it is possible to make user more be difficult to notice that indoor Air Blast fan 7f operates.
Embodiment 2
The aircondition of embodiment 2 of the present utility model is described.Fig. 6 is the stereogram of the schematic configuration of the indoor set 1 of the aircondition representing present embodiment.In addition, for having the function identical with embodiment 1 and the inscape of effect, also the description thereof will be omitted to mark identical Reference numeral.As shown in Figure 6, the indoor set 1 in present embodiment also has following characteristics, that is, also possess blow-off outlet 114 (the second blow-off outlet), and it is arranged on the position different from blow-off outlet 113 (the first blow-off outlet).Blow-off outlet 113 is arranged at the front surface top of framework 111, and blow-off outlet 114 is arranged at the end face of framework 111.The size (such as, aperture area) of blow-off outlet 114 is identical with the size of blow-off outlet 113 or less than it.Blow-off outlet 113 is provided with flashboard 113a, and this flashboard 113a, by the control of control part 31 grade, carries out opening and closing to blow-off outlet 113.Blow-off outlet 114 is provided with flashboard 114a, and this flashboard 114a, by the control of control part 31 grade, carries out opening and closing to blow-off outlet 114.Flashboard 113a, 114a play function as switching part, and switching part switches as follows: make the arbitrary blow-off outlet blow out air from blow-off outlet 113,114.
When indoor set 1 is in operating condition, flashboard 113a is controlled for open mode, flashboard 114a is controlled as closed condition.Thus when indoor set 1 is in operating condition, such as regulate air towards front-surface side blowout from blow-off outlet 113, and in fact do not blow out adjustment air from blow-off outlet 114.On the other hand, when indoor set 1 is in halted state, flashboard 113a is controlled for closed condition, flashboard 114a is controlled as open mode.Thus when indoor set 1 is in halted state, from blow-off outlet 114 such as towards side, ceiling face blow out air, and from blow-off outlet 113 in fact not blow out air.
In the present embodiment, when indoor set 1 is in operating condition, from blow-off outlet 113 blow out air, on the other hand, when indoor set 1 is in halted state, not from blow-off outlet 113 blow out air, and from being arranged at blow-off outlet 114 blow out air of diverse location.Therefore, when indoor set 1 is in halted state, user can be made more to be difficult to notice that indoor Air Blast fan 7f operates.
In addition, in the present embodiment, when indoor set 1 is in halted state, from being arranged at the blow-off outlet 114 of end face towards ceiling face blow out air.Therefore, it is possible to make the blow-off direction of air be: the direction directly not blowing to user, therefore, it is possible to make user more be difficult to notice that indoor Air Blast fan 7f operates.
In addition, in the present embodiment, as to make to carry out from the mode of the arbitrary blow-off outlet blow out air blow-off outlet 113,114 switching part that switches, and list the example of flashboard 113a, 114a, but also can use air door, for switching between the wind path towards blow-off outlet 113 and the wind path towards blow-off outlet 114.In addition, blow-off outlet 114 also can be arranged at side or the back side of framework 111.
As described above, the aircondition of above-mentioned embodiment has: kind of refrigeration cycle 40, and it makes combustible refrigerant circulate; Indoor set 1, it at least accommodates the indoor heat converter 7 of kind of refrigeration cycle 40, and in above-mentioned aircondition, indoor set 1 possesses: suction inlet 112, the air in its suction chamber; Blow-off outlet 113, it is arranged at the position different from the height of suction inlet 112, by the air that sucks from suction inlet 112 to indoor blowout; Wind path 81, it is formed between suction inlet 112 and blow-off outlet 113, and is configured with indoor heat converter 7; Indoor Air Blast fan 7f, it makes wind path 81 produce air stream from suction inlet 112 towards blow-off outlet 113, and when supplying electric power to indoor set 1, indoor Air Blast fan 7f operates all the time, at the air stream that indoor generation circulates at least in the vertical direction.
In addition, in the aircondition of above-mentioned embodiment, also can be configured to, indoor set 1 also possesses operating portion 32, its running at least can carrying out making this indoor set 1 be in operating condition starts operation and makes this indoor set 1 be in the running end operation of halted state, when indoor set 1 is in halted state, indoor Air Blast fan 7f also operates.
In addition, in the aircondition of above-mentioned embodiment, also can be configured to, when indoor set 1 is in halted state, the air quantity of indoor Air Blast fan 7f is: when indoor set 1 is in operating condition indoor Air Blast fan 7f minimum air quantity below.
In addition, in the aircondition of above-mentioned embodiment, also can be configured to, when indoor set 1 is in halted state, the blow-off direction of the air from blow-off outlet 113 is set as the direction of ceiling face towards indoor or metope.
In addition, in the aircondition of above-mentioned embodiment, also can be configured to, blow-off outlet 113 comprises the first blow-off outlet 113, and be arranged at the second blow-off outlet 114 of the position different from blow-off outlet 113, indoor set 1 also possesses flashboard 113a, 114a (example of switching part), they switch as follows, that is: the air sucked from suction inlet 112 is made, from blow-off outlet 113, arbitrary blow-off outlet blowout of 114, when indoor set 1 is in operating condition, from blow-off outlet 113 to indoor blow out air, when indoor set 1 is in halted state, from blow-off outlet 114 to indoor blow out air.
In addition, in the aircondition of above-mentioned embodiment, also can be configured to, blow-off outlet 113 is arranged at the front surface top of the framework 111 of indoor set 1, and blow-off outlet 114 is arranged at the end face of the framework 111 of indoor set 1.
In addition, in the aircondition of above-mentioned embodiment, also can be configured to, indoor set 1 puts type indoor set in the end being arranged at flooring.
In addition, in the aircondition of above-mentioned embodiment, also can be configured to, suction inlet 112 is arranged at the bottom of the framework 111 of indoor set 1, and blow-off outlet 113 is arranged at the top of the framework 111 of indoor set 1.
Other embodiments
The utility model is not limited to above-mentioned embodiment, but can carry out various distortion.
Such as, in the above-described embodiment, blow-off outlet 113 is arranged at the position higher than the height of suction inlet 112, but blow-off outlet 113 also can be arranged at the position lower than the height of suction inlet 112.Even if blow-off outlet 113 is arranged at the position lower than the height of suction inlet 112, the air stream of indoor above-below direction cocycle also can be created on, therefore, it is possible to obtain the effect identical with above-mentioned embodiment.
In addition, in the above-described embodiment, also can be provided with aircondition (such as, the framework 111 of indoor set 1 is inner): the battery, uninterrupted power supply(ups) etc. that can supply electric power to indoor set 1.Thus, even if when having a power failure, indoor Air Blast fan 7f also can be made to operate, therefore, it is possible to when combustible refrigerant occurring and leaking, suppress more reliably to form combustible concentration region.
In addition, the respective embodiments described above, variation, can combine to implement mutually.
Claims (8)
1. an aircondition, is characterized in that, has:
Kind of refrigeration cycle, it makes combustible refrigerant circulate; With
Indoor set, it at least accommodates the indoor heat converter of described kind of refrigeration cycle,
Described indoor set possesses:
Suction inlet, the air in its suction chamber;
Blow-off outlet, it is arranged on the position different from the height of described suction inlet, by the air that sucks from described suction inlet to indoor blowout; And
Air Blast fan,
When to described indoor set supply electric power, described Air Blast fan operates all the time, at the air stream that indoor generation circulates at least in the vertical direction.
2. aircondition according to claim 1, is characterized in that,
Described indoor set also possesses operating portion, and the running that this operating portion at least can carry out making this indoor set be in operating condition starts operation and makes this indoor set be in the running end operation of halted state,
When described indoor set is in described halted state, described Air Blast fan also operates.
3. aircondition according to claim 2, is characterized in that,
When described indoor set is in described halted state, the air quantity of described Air Blast fan is: when described indoor set is in described operating condition described Air Blast fan minimum air quantity below.
4. the aircondition according to Claims 2 or 3, is characterized in that,
When described indoor set is in described halted state, the blow-off direction from the air of described blow-off outlet is set as: towards the ceiling face of indoor or the direction of metope.
5. the aircondition according to Claims 2 or 3, is characterized in that,
Described blow-off outlet comprises: the first blow-off outlet and the second blow-off outlet being arranged on the position different from described first blow-off outlet,
Described indoor set also possesses switching part, and this switching part switches as follows, that is: make the air sucked from described suction inlet, blows out from arbitrary blow-off outlet of described first blow-off outlet and described second blow-off outlet,
When described indoor set is in described operating condition, from described first blow-off outlet to indoor blow out air,
When described indoor set is in described halted state, from described second blow-off outlet to indoor blow out air.
6. aircondition according to claim 5, is characterized in that,
Described first blow-off outlet is arranged at the front surface top of the framework of described indoor set,
Described second blow-off outlet is arranged at the end face of the framework of described indoor set.
7. the aircondition according to any one of claims 1 to 3, is characterized in that,
Described indoor set is the indoor set putting type in the end being arranged at indoor ground.
8. the aircondition according to any one of claims 1 to 3, is characterized in that,
Described suction inlet is arranged at the bottom of the framework of described indoor set, and described blow-off outlet is arranged at the top of the framework of described indoor set.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014115263A JP6272149B2 (en) | 2014-06-03 | 2014-06-03 | Air conditioner |
| JP2014-115263 | 2014-06-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204704930U true CN204704930U (en) | 2015-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520316092.4U Active CN204704930U (en) | 2014-06-03 | 2015-05-15 | Aircondition |
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| Country | Link |
|---|---|
| JP (1) | JP6272149B2 (en) |
| CN (1) | CN204704930U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111123746A (en) * | 2019-12-12 | 2020-05-08 | 福建睿思特科技股份有限公司 | Online monitoring system for environmental parameters of transformer substation |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5934932B2 (en) * | 1979-10-30 | 1984-08-25 | 松下電器産業株式会社 | air conditioner |
| JPH0419394Y2 (en) * | 1986-11-13 | 1992-05-01 | ||
| JPH04369370A (en) * | 1991-06-14 | 1992-12-22 | Hitachi Ltd | Air conditioner |
| IT1275221B (en) * | 1995-02-07 | 1997-07-31 | Miralfin Srl | EQUIPMENT AND PROCEDURE FOR AIR CONDITIONING WITH A REFRIGERANT FLUID THAT IS NOT HARMFUL AT LEAST TO STRATOSPHERIC OZONE |
| JP2000266439A (en) * | 1999-03-17 | 2000-09-29 | Mitsubishi Electric Corp | Refrigerator |
| JP3661548B2 (en) * | 2000-02-25 | 2005-06-15 | 三菱電機株式会社 | Refrigerator using flammable refrigerant |
| EP2629026B1 (en) * | 2010-10-14 | 2020-09-23 | Mitsubishi Electric Corporation | Outdoor unit and air conditioning device |
-
2014
- 2014-06-03 JP JP2014115263A patent/JP6272149B2/en active Active
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2015
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111123746A (en) * | 2019-12-12 | 2020-05-08 | 福建睿思特科技股份有限公司 | Online monitoring system for environmental parameters of transformer substation |
| CN111123746B (en) * | 2019-12-12 | 2021-03-09 | 福建睿思特科技股份有限公司 | Online monitoring system for environmental parameters of transformer substation |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6272149B2 (en) | 2018-01-31 |
| JP2015230109A (en) | 2015-12-21 |
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