CN100543378C - Air conditioner - Google Patents

Air conditioner Download PDF

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Publication number
CN100543378C
CN100543378C CNB200610169459XA CN200610169459A CN100543378C CN 100543378 C CN100543378 C CN 100543378C CN B200610169459X A CNB200610169459X A CN B200610169459XA CN 200610169459 A CN200610169459 A CN 200610169459A CN 100543378 C CN100543378 C CN 100543378C
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China
Prior art keywords
compressor
running
ability
air conditioner
described compressor
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Expired - Fee Related
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CNB200610169459XA
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Chinese (zh)
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CN1982799A (en
Inventor
波多野弘司
神崎秀幸
山田吉人
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Publication of CN1982799A publication Critical patent/CN1982799A/en
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Publication of CN100543378C publication Critical patent/CN100543378C/en
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Abstract

The invention provides a kind of air conditioner, it relates to and is equipped with the ability type variable air conditioner that can change the compressed capability compressor with variable of ability between FULL and SAVE by switching by two-stage, by make the startup running of the variable compressor of compressed capability by the SAVE mode, even under the low situation of overload state or supply voltage, also can not stop the variable compressor of compressed capability, and entry into service.

Description

Air conditioner
Technical field
The present invention relates to be equipped with two-stage by size and carry out the ability type variable air conditioner of the compressor of capability switch compressor delivery volume.
Background technology
A kind of compressor, switch between (hereinafter referred to as SAVE) by turning round in the all-round power running (hereinafter referred to as FULL) that increases the compressor delivery volume and the ability inhibition that reduces the compressor delivery volume, can change ability by two-stage, the startup that is equipped with the existing air conditioner of this kind compressor is that the mode with FULL starts compressor.Therefore, when when all high environment (being overload state) of indoor temperature and outdoor temperature starts down, under the low situation of the situation of hypertonia or supply voltage, produce following problem.The pick-up current value rises, and the motor output of compressor inside sharply reduces, and the so-called motor that is called fault occurs and forces to stop.Certainly, at this moment compression is interrupted.So, low at overload state or supply voltage, under the situation that the pick-up current value rises; in order to protect compressor; as the work of the excess load relay (being called OLP later on) of protective device, blocking compressor power-on circuit is with the scaling loss that prevents motor winding or burn.
Then, as shown in figure 20, when OLP cooled off naturally, the compressor power-on circuit recovered, and electric current flows, and repeats above-mentioned action.In the compressor protection device that uses existing OLP, following problem is arranged.That is, for example, under the low situation of supply voltage, freeze cycle becomes overload state easily, and in addition, compressor also pins easily.When this situation occurring, the OLP repeated multiple times of working.Therefore, OLP working cell with the work that detects OLP and the air conditioner of restarting voltage change unit are disclosed in Japanese kokai publication hei 7-174392 communique.
Yet, low at overload state or supply voltage in existing structure, under the situation that pick-up current rises, the OLP work that compressor protection is used.As a result, have, cause the problem that air conditioner can not entry into service owing to the compressor fail to start stops.In addition, under the extremely low situation of supply voltage, the under-voltage protection cell operation becomes in freeze cycle under the situation of excess load, OLP work.As a result, compressor and air conditioner body repeat repeatedly to turn round or stop.When this situation occurring, compressor is intermittent working repeatedly, might cause the destruction of compressor structural components.
Summary of the invention
Air conditioner of the present invention, be be equipped with by all can power running and ability suppress to switch between the running and can change the ability type variable air conditioner of the compressor of ability by two-stage, provide have voltage check device, when service voltage is lower than setting, make the compressor ability of carrying out suppress the air conditioner of running.Thus, even service voltage reduces, revolution electric current rises, and suppresses running by making the compressor ability of carrying out, and also can reduce compression load, reduces current value.That is, can not stop compressor, and continue air mediation running.
In addition, the invention provides a kind of air conditioner, it has current sensing means, when revolution electric current surpasses setting, makes the compressor ability of carrying out suppress running.Like this,, suppress running, also can reduce compression load, reduce current value by making the compressor ability of carrying out even service voltage reduces, revolution electric current rises.That is, can not stop compressor, and continue air mediation running.
In addition, the invention provides a kind of air conditioner, it has the output pressure checkout gear of compressor, when output pressure surpasses setting, makes the compressor ability of carrying out suppress running.Like this, by detecting the output pressure that dependency relation is arranged with current value, even outside air temperature rises, output pressure rises, and suppresses running by making the compressor ability of carrying out, and also can relax the undue rising of output pressure, reduces revolution electric current.That is, can not stop compressor, and continue air mediation running.
In addition, the invention provides a kind of air conditioner, it has the temperature-detecting device of outdoor heat exchanger, when the temperature of outdoor heat exchanger surpasses setting, makes the compressor ability of carrying out suppress running.By detecting the temperature that the outdoor heat exchanger of dependency relation is arranged with current value, even outside air temperature rises, the temperature of outdoor heat exchanger rises, and suppresses running by making the compressor ability of carrying out, the temperature that also can relax outdoor heat exchanger rises, and reduces revolution electric current.That is, can not stop compressor, and continue air mediation running.
The invention provides a kind of air conditioner, be equipped with the compressor of the ability that can change by two-stage by between FULL and SAVE, switching therein, in the starting of this air conditioner, make the compressor start running in the mode of SAVE.Like this, even under the low situation of overload state or supply voltage, owing to by the compressor that turns round of the mode with SAVE, reduce compression load, low pick-up current value appears, thus can not stop compressor, and begin the running of air conditioner.
In addition, the present invention also provides a kind of air conditioner, and it connects capacitor, to increase condenser capacitance when being provided with a plurality of runnings with the SAVE starting of the electric motor driven compressor of the capacitor initiating Rotation type of capacitors.Like this,,, can not stop compressor so, can make the compressor initiating reposefully by the compressor that turns round in the SAVE mode even under the low situation of overload state or supply voltage, also can obtain strong initiating, and the running of beginning air conditioner.
The present invention is equipped with by increasing the FULL running that the compressor delivery volume turns round and reducing to switch between the SAVE running that the compressor delivery volume turns round and can change the ability type variable air conditioner of the compressor of ability by two-stage, provide have voltage check device, when service voltage is lower than setting, compressor is turned round by the SAVE mode, and increase the air conditioner that condenser capacitance makes it to turn round.
Like this, even service voltage reduces, revolution electric current rises, and by the compressor that turns round by the SAVE mode, also can reduce compression load, reduces current value.In addition, increase condenser capacitance with capacitor, improve the moment of torsion of the motor of compressor inside, can suppress fault by the running that utilizes a plurality of compressors.That is, can not stop compressor, and continue air mediation running.
In addition, the invention provides a kind of air conditioner, it has current sensing means, when revolution electric current surpasses setting, compressor is turned round by the SAVE mode, and the increase condenser capacitance turns round.Like this, even service voltage reduces, revolution electric current rises, and by the compressor that turns round by the SAVE mode, also can reduce compression load, reduces power values.In addition, increase condenser capacitance with capacitor, improve the moment of torsion of the motor of compressor inside, can suppress fault by the running that utilizes a plurality of compressors.That is, can not stop compressor, and continue air mediation running.
In addition, the invention provides a kind of air conditioner, it has the output pressure checkout gear of compressor, when output pressure surpasses setting, compressor is turned round by the SAVE mode, and the increase condenser capacitance turns round.
By detecting the output pressure that dependency relation is arranged with current value, even ambient atmos rises, output pressure rises, and by the compressor that turns round by the SAVE mode, also can relax the undue rising of output pressure, reduces revolution electric current.In addition,, increase the electric capacity of capacitor, improve the moment of torsion of the motor of compressor inside, can suppress fault by running capacitor with a plurality of compressors.That is, can not stop compressor, be in harmonious proportion and continue air.
In addition, the invention provides a kind of air conditioner, it has the temperature-detecting device of outdoor heat exchanger, when the temperature of outdoor heat exchanger surpasses setting, compressor is turned round by the SAVE mode, and the increase condenser capacitance turns round.By detecting the temperature that the outdoor heat exchanger of dependency relation is arranged with current value, even outside air temperature rises, the temperature of outdoor heat exchanger rises, by the compressor that turns round by the SAVE mode, the temperature that also can relax outdoor heat exchanger rises, and reduces revolution electric current.Moreover, increase condenser capacitance by running with capacitor with a plurality of compressors, improve the moment of torsion of the motor of compressor inside, can suppress fault.That is, can not stop compressor, be in harmonious proportion and continue air.
Description of drawings
Fig. 1 is the flow chart of the compressor operation of embodiments of the present invention 1;
Fig. 2 is the block diagram of the control device association of embodiments of the present invention 1;
Fig. 3 is the flow chart of the compressor operation of embodiments of the present invention 2;
Fig. 4 is the block diagram of the control device association of embodiments of the present invention 2;
Fig. 5 is the flow chart of the compressor operation of embodiments of the present invention 3;
Fig. 6 is the block diagram of the control device association of embodiments of the present invention 3;
Fig. 7 is the flow chart of the compressor operation of embodiments of the present invention 4;
Fig. 8 is the block diagram of the control device association of embodiments of the present invention 4;
Fig. 9 is the block diagram of the control device association of embodiments of the present invention 5;
Figure 10 is the flow chart of the compressor operation of embodiments of the present invention 6;
Figure 11 is the block diagram of the control device association of embodiments of the present invention 6;
Figure 12 is the flow chart of the compressor operation of embodiments of the present invention 7;
Figure 13 is the block diagram of the control device association of embodiments of the present invention 7;
Figure 14 is the flow chart of the compressor operation of embodiments of the present invention 8;
Figure 15 is the block diagram of the control device association of embodiments of the present invention 8;
Figure 16 is the flow chart of the compressor operation of embodiments of the present invention 9;
Figure 17 is the block diagram of the control device association of embodiments of the present invention 9;
Figure 18 is the flow chart of the compressor operation of embodiments of the present invention 10;
Figure 19 is the block diagram of the control device association of embodiments of the present invention 10;
Figure 20 is the block diagram of the excess load protective device action of the existing excess load protective device of expression.
The explanation of symbol
1,11,20 control device
2 compressors
3,23 voltage check devices
4,24 current sensing means
5,25 output pressure checkout gears
6,26 outdoor heat converter temperature-detecting devices
10 running switches
12 compressed capability compressor with variable
13,22 FULL/SAVE switching device shifters
14 running capacitor groups
The compressor that 21 minimum cylinder volumes are variable
27 compressor operations capacitor group.
The specific embodiment
The invention provides a kind of air conditioner, it is made of following part: the indoor air-supply loop that is made of indoor air sucting inlet, indoor side heat exchanger, indoor pressure fan and room air blow-off outlet; The outdoor air-supply loop that constitutes by outdoor air suction inlet, outdoor heat exchanger, outside pressure fan and outdoor air blow-off outlet; Utilize pipeline to connect the freeze cycle of indoor side heat exchanger, outdoor heat exchanger, compressor and throttling arrangement; And control device.The present invention relates to be equipped with by all can the power running and ability suppress to switch between the running and can change the ability type variable air conditioner of the compressor of ability by two-stage.Provide when service voltage is lower than setting, make compressor carry out the air conditioner that ability suppresses running, it has voltage check device.Like this, even under the low-voltage environment, owing to can not stop compressor, and make compressor operation, be in harmonious proportion so can continue air.
In addition, the invention provides when revolution electric current surpasses setting, make compressor carry out the air conditioner that ability suppresses running, it has current sensing means.Like this, even under the low-voltage environment, revolution electric current rises, and overload state rises revolution electric current, also can not stop compressor, and the running compressor is in harmonious proportion so can continue air.
The present invention also provides when output pressure surpasses setting, makes compressor carry out the air conditioner that ability suppresses running, and it has the output pressure checkout gear of compressor.Like this, even under overload state, owing to do not stop compressor, the compressor that also can turn round is in harmonious proportion so can continue air.
In addition, the invention provides a kind of air conditioner, when the temperature of outdoor heat exchanger surpasses setting, make the compressor ability of carrying out suppress running, it has the temperature-detecting device of outdoor heat exchanger.Like this, even under overload state, owing to do not stop compressor, the compressor that also can turn round is in harmonious proportion so can continue air.
The present invention is a kind of air conditioner, is made of following part: the indoor air-supply loop that is made of indoor air sucting inlet, indoor side heat exchanger, indoor pressure fan and room air blow-off outlet; The outdoor air-supply loop that constitutes by outdoor air suction inlet, outdoor heat exchanger, outside pressure fan and outdoor air blow-off outlet; The freeze cycle and the control device that connect indoor side heat exchanger, outdoor heat exchanger, compressor and throttling arrangement with pipeline.Its relate to be equipped with by all can power running (FULL) and ability suppress to switch between the running (SAVE) and can change the air conditioner of the compressed capability compressor with variable of ability by two-stage, be provided at the air conditioner that compressor start is turned round.Like this,, produce low pick-up current value, make it to start, can begin the running of air conditioner owing to can not stopping compressor even under the low situation of overload state or supply voltage, also can reduce compression load.
In addition, the present invention also provides a plurality of running capacitors is set, and it is connected, the air conditioner that increases with the electric capacity that makes capacitor when the compressor start.Like this, even owing under the low situation of overload state or supply voltage, also can access strong initiating, by the compressor that under the SAVE mode, turns round, initiating reposefully, thus compressor can not stopped, and the running of beginning ability type variable air conditioner.
In addition, the present invention is a kind of air conditioner, is made of following part: the indoor air-supply loop that is made of indoor air sucting inlet, indoor side heat exchanger, indoor pressure fan and room air blow-off outlet; The outdoor air-supply loop that constitutes by outdoor air suction inlet, outdoor heat exchanger, outside pressure fan and outdoor air blow-off outlet; The freeze cycle and the control device that connect indoor side heat exchanger, outdoor heat exchanger, compressor and throttling arrangement with pipeline, relate to and be equipped with the ability type variable air conditioner that can change the compressor of ability by between FULL and SAVE, switching by two-stage, provide have voltage check device, when service voltage is lower than setting, make the air conditioner of compressor operation with the SAVE mode.Like this, even, be in harmonious proportion so can continue air owing under the low-voltage environment, also can not stop compressor and the compressor that turns round.In addition, increase condenser capacitance with capacitor, improve the moment of torsion of the motor of compressor inside by the running that utilizes a plurality of compressors, fault can be suppressed, simultaneously, the rotating speed of compressor can be improved, keep air mediation ability, can not stop compressor, and continue air mediation running.
The present invention also provides when the running power supply surpasses setting, makes the air conditioner of compressor operation under the SAVE mode, and it has current sensing means.Like this, even, also can not stop compressor, and make compressor operation, therefore can continue air and be in harmonious proportion because revolution electric current rising under the low-voltage environment rises revolution electric current by overload state.In addition, increase condenser capacitance with capacitor, improve the moment of torsion of the motor of compressor inside by a plurality of runnings that utilize compressor, fault can be suppressed, simultaneously, the rotating speed of compressor can be improved, keep air and be in harmonious proportion ability, can not stop compressor and continue air and be in harmonious proportion running.
In addition, the present invention also provides when output pressure surpasses setting, and with the turn round air conditioner of compressor of SAVE mode, it has the output pressure checkout gear of compressor.Like this, even owing under overload state, do not stop compressor, the compressor that also can turn round is in harmonious proportion so can continue air.In addition, increase condenser capacitance with capacitor, improve the motor torque of compressor inside by a plurality of runnings that utilize compressor, fault can be suppressed, simultaneously, the rotating speed of compressor can be improved, keep air and be in harmonious proportion ability, can not stop compressor and continue air and be in harmonious proportion running.
The present invention also provides when the temperature of outdoor heat exchanger surpasses setting, and with the turn round air conditioner of compressor of SAVE mode, it has the temperature-detecting device of outdoor heat exchanger.Like this, even, be in harmonious proportion so can continue air owing under overload state, also can not stop compressor and the compressor that turns round.In addition, increase condenser capacitance with capacitor, improve the moment of torsion of the motor of compressor inside by a plurality of runnings that utilize compressor, can suppress fault, simultaneously, improve the rotating speed of compressor, keep air and be in harmonious proportion ability, can not stop compressor and continue air and be in harmonious proportion running.
Below, with reference to the description of drawings embodiments of the present invention.In addition, the present invention is not confined to the embodiment of the following stated.In addition, in the present invention, for the electric capacity that increases capacitor has been considered two kinds of methods.The first, the quantity of the capacitor that increase is connected in parallel, the second, the quantity of minimizing capacitor connected in series.
(embodiment 1)
Utilize Fig. 1 and Fig. 2 that embodiments of the present invention 1 are described.
As depicted in figs. 1 and 2, it constitutes and comprises control device 1; Can be to delivery volume by all-round power running (being called FULL) and the ability compressor 2 of two-stage change ability of (being called SAVE) that suppresses to turn round; And detect supply voltage and its value is delivered to the voltage check device 3 of control device 1, be set in the voltage ratio that detects by voltage check device 3 under the low situation of the setting of supply voltage of control device 1, make compressor 2 ability of carrying out suppress running.If be the air conditioner of above structure, in the bad region of voltage condition, even under the low situation of supply voltage, excess load protective device (OLP) is not worked yet, and can reduce the load of compressor, can carry out air mediation running.
(embodiment 2)
Utilize Fig. 3 and Fig. 4, embodiments of the present invention 2 are described.
As shown in Figure 3 and Figure 4, it constitutes and comprises control device 1; Can change the compressor 2 of ability to the two-stage that delivery volume suppresses to turn round by all-round power running and ability; And detect revolution electric current and its value is delivered to the current sensing means 4 of above-mentioned control device 1, be set in the current ratio that detects by current sensing means 4 under the high situation of the setting of revolution electric current of control device 1, make compressor 2 ability of carrying out suppress running.
If be the air conditioner of above structure, in the bad region of voltage condition, even under the high situation of the revolution electric current of compressor, OLP does not work yet, and can reduce the load of compressor, can carry out air mediation running.
(embodiment 3)
Utilize Fig. 5 and Fig. 6 that embodiments of the present invention 3 are described.
As shown in Figure 5 and Figure 6, it constitutes and comprises control device 1; Can change the compressor 2 of ability to the two-stage that delivery volume suppresses to turn round by all-round power running and ability; And detect output pressure and its value is delivered to the output pressure checkout gear 5 of control device 1, be set at the output pressure ratio that detects by output pressure checkout gear 5 under the high situation of the setting of output pressure of control device 1, make compressor 2 ability of carrying out suppress running.
If be the air conditioner of above structure, even the temperature rises extraneous, freeze cycle is an overload state, and under the high situation of output pressure, OLP does not work yet, and can reduce the load of compressor, can carry out air and be in harmonious proportion running.
(embodiment 4)
Utilize Fig. 7 and Fig. 8, embodiments of the present invention 4 are described.
As shown in Figure 7 and Figure 8, it constitutes and comprises control device 1; Can change the compressor 2 of ability to the two-stage that delivery volume suppresses to turn round by all-round power running and ability; And sensing chamber's outer heat-exchanger temperature and its value is delivered to the outdoor heat converter temperature-detecting device 6 of control device 1, the temperature that detects by outdoor heat converter temperature-detecting device 6 than the high situation of the setting of the outdoor heat converter temperature that is set in control device 1 under, make compressor 2 ability of carrying out suppress to turn round.
If be the air conditioner of above structure, even the temperature rises extraneous, freeze cycle is an overload state, and under the high situation of output pressure, OLP does not work yet, and can reduce the load of compressor, can carry out air and be in harmonious proportion running.
(embodiment 5)
Utilize Fig. 9 that embodiments of the present invention 5 are described.
As shown in Figure 9, it constitutes and comprises running switch 10; Control device 11; Can change the compressed capability compressor with variable 12 of ability by the two-stage of FULL and SAVE; And detect the running commencing signal and it is delivered to the FULL/SAVE switching device shifter 13 of compressed capability compressor with variable 12, under the situation that detects the running commencing signal that sends from running switch 10, make compressed capability compressor with variable 12 carry out the SAVE running.
If be the ability type variable air conditioner of above structure, even then under the low situation of overload state or supply voltage, also can reduce compression load, can be with low current value entry into service.
(embodiment 6)
Utilize Figure 10 and Figure 11 that embodiments of the present invention 6 are described.
As shown in Figure 10 and Figure 11, the air conditioner of present embodiment comprises running switch 10; Control device 11; Can change the compressed capability compressor with variable 12 of ability by the two-stage of FULL and SAVE; Detect the running commencing signal and it is delivered to the FULL/SAVE switching device shifter 13 of compressed capability compressor with variable 12.It constitutes in running and detects with capacitor group 14 under the situation of the running commencing signal of sending from running switch 10, connects in the mode of the electric capacity that increases capacitor, makes compressed capability compressor with variable 12 carry out the SAVE running.
If be the ability type variable air conditioner of above structure, even owing under the low situation of overload state or supply voltage, also can obtain strong initiating, so can entry into service.
(embodiment 7)
Utilize Figure 12 and Figure 13, embodiments of the present invention 7 are described.
As Figure 12 and shown in Figure 13, it constitutes and comprises control device 20; Can press the minimum cylinder volume compressor with variable 21 of the two-stage change ability of FULL and SAVE to the compression delivery volume; Detect supply voltage and its value is sent voltage check device 23 to control device 20; And its value sent FULL/SAVE switching device shifter 22 to minimum cylinder volume compressor with variable 21, be set in the voltage ratio that detects by voltage check device 23 under the low situation of the setting of supply voltage of control device 20, make minimum cylinder volume compressor with variable 21 carry out the SAVE running.In addition, detect the result that such supply voltage reduces as voltage check device 23, minimum cylinder volume compressor with variable 21 is carried out under the situation of SAVE running, by control device 20 with signal send to the running of compressor with capacitor group 27, connect capacitor, make to increase the electric capacity of the running of compressor with capacitor.
If be the air conditioner of above structure, then in the bad region of voltage condition, even under the low situation of supply voltage, OLP does not work yet, and can reduce the load of compressor, can continue air mediation running.
(embodiment 8)
Utilize Figure 14 and Figure 15, embodiments of the present invention 8 are described.
As Figure 14 and shown in Figure 15, it constitutes and comprises control device 20; Can press the minimum cylinder volume compressor with variable 21 of the two-stage change ability of FULL and SAVE to the compression delivery volume; Detect revolution electric current and its value is sent current sensing means 24 to control device 20; With the FULL/SAVE switching device shifter of its value being sent to minimum cylinder volume compressor with variable 21 22, be set in the current ratio that detects by current sensing means 24 under the high situation of the setting of revolution electric current of control device 20, make minimum cylinder volume compressor with variable 21 carry out the SAVE running.In addition, detect the result that this revolution electric current reduces as current sensing means 24, minimum cylinder volume compressor with variable 21 is carried out under the situation of SAVE running, by control device 20 with signal send to the running of compressor with capacitor group 27, connect, make to increase the electric capacity of the running of compressor with capacitor.
If be the air conditioner of above structure, then in the bad region of voltage condition, even under the high situation of the revolution electric current of compressor, OLP does not work yet, and can reduce the load of compressor, can carry out air mediation running.
(embodiment 9)
Utilize Figure 16 and Figure 17, embodiments of the present invention 9 are described.
Figure 17 is the block diagram of embodiments of the present invention 9.As Figure 16 and shown in Figure 17, the air conditioner of present embodiment comprises control device 20; Can press the minimum cylinder volume compressor with variable 21 of the two-stage change ability of FULL and SAVE to the compression delivery volume; Detect output pressure and its value is sent output pressure checkout gear 25 to control device 20; With the FULL/SAVE switching device shifter of its value being sent to minimum cylinder volume compressor with variable 21 22.So, constitute under the high situation of the setting that is set in the output pressure in the control device 20 by output pressure checkout gear 25 detected output pressure ratios, make minimum cylinder volume compressor with variable 21 carry out the SAVE running.In addition, detect the result that such freeze cycle is an overload state as output pressure checkout gear 25, minimum cylinder volume compressor with variable 21 is carried out under the situation of SAVE running, by control device 20 with signal send to the running of compressor with capacitor group 27, make to connect in the running that increases compressor mode with the electric capacity of capacitor.If be the air conditioner of above structure, even then the temperature rises extraneous, freeze cycle is an overload state, and under the high situation of output pressure, OLP does not work yet, and can reduce the load of compressor, can carry out air and be in harmonious proportion running.
(embodiment 10)
Utilize Figure 18 and Figure 19, embodiments of the present invention 10 are described.
As Figure 18 and shown in Figure 19, it constitutes and comprises control device 20; Can press the minimum cylinder volume compressor with variable 21 of the two-stage change ability of FULL and SAVE to the compression delivery volume; Sensing chamber's outer heat-exchanger temperature is also sent outdoor heat converter temperature-detecting device 26 to control device 20 with its value; And its value sent FULL/SAVE switching device shifter 22 to minimum cylinder volume compressor with variable 21, by outdoor heat converter temperature-detecting device 26 detected temperature than the high situation of the setting of the outdoor heat converter temperature that is set in control device 20 under, make minimum cylinder volume compressor with variable 21 carry out SAVE running.In addition, detecting such outdoor heat converter temperature rising by outdoor heat converter temperature-detecting device 26, compressor 21 is carried out under the situation of SAVE running, by control device 20 with signal send to the running of compressor with capacitor group 27, connect, use the electric capacity of capacitor with the running that increases compressor.
If be the air conditioner of above structure, even then the temperature rises extraneous, freeze cycle is an overload state, and under the high situation of output pressure, OLP does not work yet, and can reduce the load of compressor, can carry out air and be in harmonious proportion running.
Even under the low situation of overload state or supply voltage, compressor also can be easy to start, and it is stopped and can beginning the running of air conditioner.
In addition, the air conditioner that the present invention relates to, lift-launch can change the compressed capability compressor with variable of ability by two-stage by switching between FULL and SAVE, by making its startup in the SAVE mode, even because under the low situation of overload state or supply voltage, also can not stop the compressed capability compressor with variable and make it startup, thus ability type variable air conditioner be applicable to incessantly, and can be applicable in dehumidifier or the drying machine etc.

Claims (4)

1, a kind of air conditioner is characterized in that:
Be be equipped with by all can power running and ability suppress to switch between the running and can change the ability type variable air conditioner of the compressor of ability by two-stage,
The motor that drives described compressor is the monocyclic-start induction motor of capacitor initiating Rotation type, is provided with a plurality of running capacitors, and connects, and makes when the described compressor ability of carrying out suppresses running, and condenser capacitance is big when turning round than described all-round power,
Have voltage check device, when service voltage is lower than setting, makes described compressor carry out described ability and suppress running.
2, a kind of air conditioner is characterized in that:
Be be equipped with by all can power running and ability suppress to switch between the running and can change the ability type variable air conditioner of the compressor of ability by two-stage,
The motor that drives described compressor is the monocyclic-start induction motor of capacitor initiating Rotation type, is provided with a plurality of running capacitors, and connects, and makes when the described compressor ability of carrying out suppresses running, and condenser capacitance is big when turning round than described all-round power,
Have current sensing means, when revolution electric current is higher than setting, makes described compressor carry out described ability and suppress running.
3, a kind of air conditioner is characterized in that:
Be be equipped with by all can power running and ability suppress to switch between the running and can change the ability type variable air conditioner of the compressor of ability by two-stage,
The motor that drives described compressor is the monocyclic-start induction motor of capacitor initiating Rotation type, is provided with a plurality of running capacitors, and connects, and makes when the described compressor ability of carrying out suppresses running, and condenser capacitance is big when turning round than described all-round power,
Output pressure checkout gear with described compressor when output pressure is higher than setting, makes described compressor carry out described ability and suppresses running.
4, a kind of air conditioner is characterized in that:
Be be equipped with by all can power running and ability suppress to switch between the running and can change the ability type variable air conditioner of the compressor of ability by two-stage,
The motor that drives described compressor is the monocyclic-start induction motor of capacitor initiating Rotation type, is provided with a plurality of running capacitors, and connects, and makes when the described compressor ability of carrying out suppresses running, and condenser capacitance is big when turning round than described all-round power,
Temperature-detecting device with outdoor heat exchanger when the temperature of described outdoor heat exchanger is higher than setting, makes described compressor carry out described ability and suppresses running.
CNB200610169459XA 2005-12-15 2006-12-15 Air conditioner Expired - Fee Related CN100543378C (en)

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JP2005361585A JP2007163061A (en) 2005-12-15 2005-12-15 Air conditioner
JP2005361585 2005-12-15
JP2006002076 2006-01-10
JP2006128813 2006-05-08

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CN100543378C true CN100543378C (en) 2009-09-23

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JP6146606B2 (en) * 2013-03-26 2017-06-14 株式会社富士通ゼネラル Air conditioner
CN103542495A (en) * 2013-10-31 2014-01-29 Tcl空调器(中山)有限公司 Heating protection method and device for air conditioner
CN106123211A (en) * 2016-06-22 2016-11-16 广东美的制冷设备有限公司 In air-conditioner and air-conditioner, the low-voltage variation of compressor controls apparatus and method
CN106196477A (en) * 2016-07-26 2016-12-07 广东美的制冷设备有限公司 Air conditioner system control method and device

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