CN105953372A - Phase lacking control method and device for compressor and air conditioner - Google Patents
Phase lacking control method and device for compressor and air conditioner Download PDFInfo
- Publication number
- CN105953372A CN105953372A CN201610338510.9A CN201610338510A CN105953372A CN 105953372 A CN105953372 A CN 105953372A CN 201610338510 A CN201610338510 A CN 201610338510A CN 105953372 A CN105953372 A CN 105953372A
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- China
- Prior art keywords
- compressor
- phase
- deficient operation
- shortage
- judging
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/85—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using variable-flow pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/025—Compressor control by controlling speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/17—Speeds
- F25B2700/171—Speeds of the compressor
Abstract
The invention provides a phase lacking control method and device for a compressor and an air conditioner. The phase lacking control method for the compressor includes the steps that whether the compressor operates in a phase lacking manner or not is judged; and when it is judged that the compressor operates in the phase lacking manner, the compressor is controlled to operate continuously at the operating frequency not higher than the first preset frequency value. By the adoption of the technical scheme, when phase lacking happens to the compressor, on the premise of guaranteeing that elements in a circuit are not damaged, the compressor is controlled to operate continuously, and therefore it can be guaranteed that the air conditioner operates continuously to meet the use demand on the air conditioner of the users.
Description
Technical field
The present invention relates to Compressor Technology field, the phase shortage in particular to a kind of compressor controls
Method, the phase shortage of a kind of compressor control device and a kind of air-conditioner.
Background technology
When phase shortage occurring under the air-conditioner of three phase supply is at case of heavy load, can be bigger and right due to electric current
Some components and parts cause bigger infringement, and therefore, current processing scheme is the most all to go out at air-conditioner
During existing phase shortage, directly control air-conditioner and enter stoppage protection state.But, when air-conditioner is in underloading
In the case of time phase shortage occurs, electric current can't be big especially, and now components and parts are in safe condition,
If the most directly controlling air-conditioner to enter stoppage protection state, the most undoubtedly can be to being badly in need of using the use of air-conditioner
Family impacts.
Therefore, how when phase shortage occurs in air-conditioner, it is possible in the premise guaranteeing that components and parts are not compromised
Under, control air-conditioner and continue to run with to meet the technical problem that the demand of user becomes urgently to be resolved hurrily.
Summary of the invention
It is contemplated that at least solve one of technical problem present in prior art or correlation technique.
To this end, it is an object of the present invention to propose the phase shortage controlling party of a kind of new compressor
Method so that when phase shortage occurs in compressor, it is possible to ensure the premise at the components and parts not damaged in circuit
Under, control compressor and continue to run with, and then ensure that air-conditioner works on to meet user and uses
The demand of air-conditioner.
Further object is that the phase shortage proposing a kind of compressor controls device and has this
Phase shortage controls the air-conditioner of device.
For achieving the above object, embodiment according to the first aspect of the invention, it is proposed that a kind of compression
The phase shortage control method of machine, including: judge compressor whether phase-deficient operation；Judging described compressor
During phase-deficient operation, control described compressor and continue fortune with the running frequency of the not higher than first preset frequency value
OK.
The phase shortage control method of compressor according to an embodiment of the invention, this compressor can be air-conditioning
Compressor in device, by when compressor phase-deficient operation being detected, controls compressor with not higher than the
The running frequency of one preset frequency value continues to run with so that when phase shortage occurs in compressor, it is possible to ensure
On the premise of the components and parts not damaged in circuit, control compressor and continue to run with, and then ensure that
Air-conditioner works on to meet user and uses the demand of air-conditioner.
The phase shortage control method of compressor according to the abovementioned embodiments of the present invention, it is also possible to have following
Technical characteristic:
According to one embodiment of present invention, the described step judging compressor whether phase-deficient operation it
Before, also include: detect the running frequency of described compressor；Running frequency at described compressor reaches
During the second preset frequency value, perform the described step judging compressor whether phase-deficient operation.
In this embodiment, due to when the running frequency of compressor is relatively low, even if lacking occurs in compressor
The problem of phase, the most also will not cause damage to system, therefore can be only in the running frequency of compressor
Compressor whether phase-deficient operation is judged again, it is to avoid persistently judge compression when reaching the second preset frequency value
Machine whether phase-deficient operation and increase the work load of system.Wherein, the first preset frequency value is preferably smaller than
Or equal to the second preset frequency value.
According to one embodiment of present invention, the described step judging compressor whether phase-deficient operation, tool
Body includes: detect electric current and the electric current of the second phase of the first phase of described compressor；If described first phase
Electric current more than or equal to the first predetermined current value, described second phase electric current less than or equal to second pre-
Determine current value, and continue the first scheduled duration, then judge described compressor phase-deficient operation.
Wherein, described first phase is not described with described second in being the three phase mains of described compressor mutually
It is biphase that the controller of compressor is powered.
In this embodiment, if that phase phase shortage of powering for controller in compressor, then compressor
Controller can direct power-off；And during arbitrary phase phase shortage in remaining is biphase, the phase current of this phase can subtract
Few, and the phase current of another phase can become big, therefore can detect this biphase phase current to determine compression
Machine whether phase-deficient operation.In one embodiment of the invention, the first scheduled duration can be 2 minutes
Left and right；First predetermined current value can be gone bail for the reliable and secure maximum current value of components and parts in card circuit
60% to 100%；1.5 of minimum current value when second predetermined current value can take compressor operating
About times.
According to one embodiment of present invention, the phase shortage control method of described compressor, also include:
After judging described compressor phase-deficient operation, send prompt messages.
In this embodiment, by after judging compressor phase-deficient operation, alarm letter is sent
Breath, can remind user to keep in repair in time.Wherein, both compressor can controlled with not higher than the
While the running frequency of one preset frequency value continues to run with, send prompt messages, it is also possible to
After control compressor continues to run with a period of time, then send prompt messages.
According to one embodiment of present invention, the phase shortage control method of described compressor, also include:
Control the duration that described compressor continues to run with the running frequency of the not higher than first preset frequency value to reach
During the second scheduled duration, control described compressor shutdown.
The phase shortage control method of compressor according to an embodiment of the invention, by control compressor with
When the duration that not higher than running frequency of the first preset frequency value continues to run with reaches the second scheduled duration,
Control compressor shutdown, can avoid compressor long-time phase-deficient operation that the components and parts in circuit are made
Become infringement.
Embodiment according to a second aspect of the present invention, it is also proposed that the phase shortage of a kind of compressor controls dress
Put, including judging unit, be used for judging compressor whether phase-deficient operation；Control unit, is used for
When described judging unit judges described compressor phase-deficient operation, control described compressor with not higher than first
The running frequency of preset frequency value continues to run with.
The phase shortage of compressor controls device according to an embodiment of the invention, and this compressor can be air-conditioning
Compressor in device, by when compressor phase-deficient operation being detected, controls compressor with not higher than the
The running frequency of one preset frequency value continues to run with so that when phase shortage occurs in compressor, it is possible to ensure
On the premise of the components and parts not damaged in circuit, control compressor and continue to run with, and then ensure that
Air-conditioner works on to meet user and uses the demand of air-conditioner.
The phase shortage of compressor according to the abovementioned embodiments of the present invention controls device, it is also possible to have following
Technical characteristic:
According to one embodiment of present invention, the phase shortage of described compressor controls device, also includes: the
One detector unit, for detecting the running frequency of described compressor；Described judging unit specifically for,
Detect that the running frequency of described compressor reaches the second preset frequency value in described first detector unit
Time, perform to judge the operation of described compressor whether phase-deficient operation.
In this embodiment, due to when the running frequency of compressor is relatively low, even if lacking occurs in compressor
The problem of phase, the most also will not cause damage to system, therefore can be only in the running frequency of compressor
Compressor whether phase-deficient operation is judged again, it is to avoid persistently judge compression when reaching the second preset frequency value
Machine whether phase-deficient operation and increase the work load of system.Wherein, the first preset frequency value is preferably smaller than
Or equal to the second preset frequency value.
According to one embodiment of present invention, described judging unit includes: the second detector unit, is used for
Detect electric current and the electric current of the second phase of the first phase of described compressor；Performance element, for described
The electric current of the first phase is less than or equal to more than or equal to the first predetermined current value, the electric current of described second phase
Second predetermined current value, and when continuing the first scheduled duration, it is determined that described compressor phase-deficient operation.
Wherein, described first phase is not described with described second in being the three phase mains of described compressor mutually
It is biphase that the controller of compressor is powered.
In this embodiment, if that phase phase shortage of powering for controller in compressor, then compressor
Controller can direct power-off；And during arbitrary phase phase shortage in remaining is biphase, the phase current of this phase can subtract
Few, and the phase current of another phase can become big, therefore can detect this biphase phase current to determine compression
Machine whether phase-deficient operation.In one embodiment of the invention, the first scheduled duration can be 2 minutes
Left and right；First predetermined current value can be gone bail for the reliable and secure maximum current value of components and parts in card circuit
60% to 100%；1.5 of minimum current value when second predetermined current value can take compressor operating
About times.
According to one embodiment of present invention, the phase shortage of described compressor controls device, also includes: report
Alert Tip element, after judging described compressor phase-deficient operation at described judging unit, sends report
Alert information.
In this embodiment, by after judging compressor phase-deficient operation, alarm letter is sent
Breath, can remind user to keep in repair in time.Wherein, both compressor can controlled with not higher than the
While the running frequency of one preset frequency value continues to run with, send prompt messages, it is also possible to
After control compressor continues to run with a period of time, then send prompt messages.
According to one embodiment of present invention, described control unit is additionally operable to: controlling described compressor
The second scheduled duration is reached with the duration that the running frequency of the not higher than first preset frequency value continues to run with
Time, control described compressor shutdown.
According to an embodiment of the invention compressor phase shortage control device, by control compressor with
When the duration that not higher than running frequency of the first preset frequency value continues to run with reaches the second scheduled duration,
Control compressor shutdown, can avoid compressor long-time phase-deficient operation that the components and parts in circuit are made
Become infringement.
Embodiment according to a third aspect of the present invention, it is also proposed that a kind of air-conditioner, including: compression
Machine；And the phase shortage of the compressor as described in above-mentioned any one embodiment controls device.
The additional aspect of the present invention and advantage will part be given in the following description, and part will be from following
Description in become obvious, or recognized by the practice of the present invention.
Accompanying drawing explanation
Embodiment is retouched by the above-mentioned and/or additional aspect of the present invention and advantage from combining accompanying drawings below
Will be apparent from easy to understand in stating, wherein:
Figure 1A shows the phase shortage control method of compressor according to first embodiment of the invention
Schematic flow diagram；
Figure 1B shows the phase shortage control method of the compressor of second embodiment according to the present invention
Schematic flow diagram；
Fig. 2 shows showing of the phase shortage control method of the compressor of the 3rd embodiment according to the present invention
Meaning flow chart；
Fig. 3 shows that the phase shortage according to embodiments of the invention compressor controls the schematic block diagram of device；
Fig. 4 shows the schematic block diagram of air-conditioner according to an embodiment of the invention.
Detailed description of the invention
In order to be more clearly understood that the above-mentioned purpose of the present invention, feature and advantage, below in conjunction with attached
The present invention is further described in detail by figure and detailed description of the invention.It should be noted that not
In the case of conflict, the feature in embodiments herein and embodiment can be mutually combined.
Elaborate a lot of detail in the following description so that fully understanding the present invention, but,
The present invention can implement to use other to be different from other modes described here, therefore, and the present invention
Protection domain do not limited by following public specific embodiment.
As shown in Figure 1A, the phase shortage controlling party of compressor according to first embodiment of the invention
Method, including:
Step S104, it is judged that compressor whether phase-deficient operation.
In one embodiment of the invention, step S104 specifically includes: detect described compressor
The electric current of the first phase and the electric current of the second phase；If the electric current of described first phase makes a reservation for more than or equal to first
Current value, the electric current of described second phase are less than or equal to the second predetermined current value, and it is pre-to continue first
Timing is long, then judge described compressor phase-deficient operation.
Wherein, described first phase is not described with described second in being the three phase mains of described compressor mutually
It is biphase that the controller of compressor is powered.
In this embodiment, if that phase phase shortage of powering for controller in compressor, then compressor
Controller can direct power-off；And during arbitrary phase phase shortage in remaining is biphase, the phase current of this phase can subtract
Few, and the phase current of another phase can become big, therefore can detect this biphase phase current to determine compression
Machine whether phase-deficient operation.In one embodiment of the invention, the first scheduled duration can be 2 minutes
Left and right；First predetermined current value can be gone bail for the reliable and secure maximum current value of components and parts in card circuit
60% to 100%；1.5 of minimum current value when second predetermined current value can take compressor operating
About times.
Step S106, when judging described compressor phase-deficient operation, controls described compressor with the highest
Running frequency in the first preset frequency value continues to run with.
Wherein, compressor can be the compressor in air-conditioner, by detecting that compressor phase shortage is transported
During row, control compressor and continue to run with the running frequency of the not higher than first preset frequency value so that
When phase shortage occurs in compressor, it is possible to ensure on the premise of the components and parts not damaging in circuit, control pressure
Contracting machine continues to run with, and then ensure that air-conditioner works on to meet user and uses the need of air-conditioner
Ask.
In one embodiment of the invention, as shown in Figure 1B, before step S104, also wrap
Include:
Step S102, the running frequency of detection compressor, the running frequency at described compressor reaches
During the second preset frequency value, perform step S104.
Specifically, due to when the running frequency of compressor is relatively low, even if asking of phase shortage occurs in compressor
Topic, the most also will not cause damage to system, therefore only running frequency at compressor can reach the
Compressor whether phase-deficient operation is judged again, it is to avoid persistently whether judge compressor during two preset frequency values
Phase-deficient operation and increase the work load of system.Wherein, the first preset frequency value is preferably lower than or equal to
Second preset frequency value.
Phase shortage control method based on the compressor shown in Figure 1A and Figure 1B, at one of the present invention
In embodiment, when in step S106 judging after compressor phase-deficient operation, it is also possible to send warning
Information.
In this embodiment, by after judging compressor phase-deficient operation, alarm letter is sent
Breath, can remind user to keep in repair in time.
Wherein, sending above-mentioned prompt messages for when, the present invention proposes the following two kinds side
Formula:
Mode 1: continue to run with the running frequency of the not higher than first preset frequency value controlling compressor
While, send prompt messages.Which makes just to send out when compressor phase-deficient operation being detected
Go out prompt messages to prompt the user with, and then user can clearly know that compressor is to transport in phase shortage
OK, the most both can guarantee that continuing to run with of compressor, and user can have been made again to have ample time and contact
Compressor is keeped in repair by maintainer.
Mode 2: after controlling compressor and continuing to run with a period of time, then send alarm letter
Breath.
Wherein, prompt messages can be pointed out by the form of sound and/or light, also may be used simultaneously
To show failure code.
In one embodiment of the present of invention, the phase shortage control method of described compressor, also include: in control
Make described compressor and reach with the duration that the running frequency of the not higher than first preset frequency value continues to run with
During two scheduled durations, control described compressor shutdown.
In this embodiment, by controlling the compressor operation frequency with the not higher than first preset frequency value
When the duration that rate continues to run with reaches the second scheduled duration, control compressor shutdown, compression can be avoided
Captain's time phase-deficient operation and the components and parts in circuit are caused damage.Wherein, the second scheduled duration can
Being about half an hour.
Fig. 2 shows showing of the phase shortage control method of the compressor of the 3rd embodiment according to the present invention
Meaning flow chart, in this embodiment, illustrates as a example by the compressor in air-conditioner.
As in figure 2 it is shown, the phase shortage control method of the compressor according to the 3rd embodiment of the present invention,
Including:
Step 202, air-conditioner is started shooting.
Step 204, compressor start.
Step 206, it is judged that whether the running frequency of compressor more than or equal to MHz, is the most then held
Row step 208；Otherwise, step 220 is performed.
Step 208, wherein biphase current Ia and Ib in the three phase mains of detection compressor.Wherein, this
Biphase be not for the controller of compressor power biphase.
Step 210, it is judged that whether Ia >=IphaseMax and Ib≤IphaseMin set up, the most then
Perform step 214；Otherwise, step 212 is performed.
Step 212, it is judged that whether Ib >=IphaseMax and Ia≤IphaseMin set up, the most then
Perform step 214；Otherwise, step 218 is performed.
Above-mentioned steps 210 and step 212 upon execution can without sequencing, as long as judge Ia with
In Ib whether one more than or equal to IphaseMax, and another is less than or equal to IphaseMin.
Wherein, IphaseMax is the 60%～100% of the maximum current value that in circuit, components and parts are reliable and secure,
About 1.5 times of minimum current when IphaseMin takes compressor operating.
Step 214, it is judged that phase shortage timer whether more than or equal to t1, the most then performs step
216.Wherein, t1 can be 2 minutes.
Step 216, it is determined that system phase shortage, and perform step 220.
Step 218, phase shortage timer resets, and performs step 220.
Step 220, it is judged that system whether phase shortage, the most then perform step 224；Otherwise, perform
Step 222.
Step 222, compressor is properly functioning.
Step 224, compressor limit frequency is run, the highest less than NHz.
Step 226, it is judged that whether the duration that the frequency of restriction compressor is run is more than t2, the most then
Perform step 228；Otherwise, step 224 is returned.Wherein, t2 can be about half an hour.
Step 228, enters phase shortage stoppage protection state.
Fig. 3 shows that the phase shortage according to embodiments of the invention compressor controls the schematic block diagram of device.
As it is shown on figure 3, control device 300, bag according to the phase shortage of embodiments of the invention compressor
Include: judging unit 304 and control unit 306.
Wherein, it is judged that unit 304 is used for judging compressor whether phase-deficient operation；Control unit 306 is used
In time judging described compressor phase-deficient operation at described judging unit 304, control described compressor with not
Continue to run with higher than the running frequency of the first preset frequency value.
Specifically, compressor can be the compressor in air-conditioner, by detecting that compressor lacks
When running mutually, control compressor and continue to run with the running frequency of the not higher than first preset frequency value, make
Must be when there is phase shortage in compressor, it is possible to ensure on the premise of the components and parts not damaging in circuit, control
Compressor processed continues to run with, and then ensure that air-conditioner works on to meet user and uses air-conditioner
Demand.
In one embodiment of the invention, the phase shortage of compressor controls device 200, also includes: the
One detector unit 302, for detecting the running frequency of described compressor；Described judging unit 304 has
Body is used for, and detects that the running frequency of described compressor reaches second in described first detector unit 302
During preset frequency value, perform to judge the operation of described compressor whether phase-deficient operation.
In this embodiment, due to when the running frequency of compressor is relatively low, even if lacking occurs in compressor
The problem of phase, the most also will not cause damage to system, therefore can be only in the running frequency of compressor
Compressor whether phase-deficient operation is judged again, it is to avoid persistently judge compression when reaching the second preset frequency value
Machine whether phase-deficient operation and increase the work load of system.Wherein, the first preset frequency value is preferably smaller than
Or equal to the second preset frequency value.
In one embodiment of the invention, it is judged that unit 304 includes: the second detector unit
3042, for detecting electric current and the electric current of the second phase of the first phase of described compressor；Performance element
3044, for the electric current in described first phase more than or equal to the first predetermined current value, described second phase
Electric current less than or equal to the second predetermined current value, and when continuing the first scheduled duration, it is determined that described
Compressor phase-deficient operation.
Wherein, described first phase is not described with described second in being the three phase mains of described compressor mutually
It is biphase that the controller of compressor is powered.
In this embodiment, if that phase phase shortage of powering for controller in compressor, then compressor
Controller can direct power-off；And during arbitrary phase phase shortage in remaining is biphase, the phase current of this phase can subtract
Few, and the phase current of another phase can become big, therefore can detect this biphase phase current to determine compression
Machine whether phase-deficient operation.In one embodiment of the invention, the first scheduled duration can be 2 minutes
Left and right；First predetermined current value can be gone bail for the reliable and secure maximum current value of components and parts in card circuit
60% to 100%；1.5 of minimum current value when second predetermined current value can take compressor operating
About times.
In one embodiment of the invention, the phase shortage of compressor controls device 300, also includes: report
Alert Tip element 308, for described judging unit 304 judge described compressor phase-deficient operation it
After, send prompt messages.
In this embodiment, by after judging compressor phase-deficient operation, alarm letter is sent
Breath, can remind user to keep in repair in time.Wherein, both compressor can controlled with not higher than the
While the running frequency of one preset frequency value continues to run with, send prompt messages, it is also possible to
After control compressor continues to run with a period of time, then send prompt messages.
According to one embodiment of present invention, described control unit 306 is additionally operable to: controlling described pressure
Contracting machine reaches the second pre-timing with the duration that the running frequency of the not higher than first preset frequency value continues to run with
Time long, control described compressor shutdown.
In this embodiment, by controlling the compressor operation frequency with the not higher than first preset frequency value
When the duration that rate continues to run with reaches the second scheduled duration, control compressor shutdown, compression can be avoided
Captain's time phase-deficient operation and the components and parts in circuit are caused damage.
The phase shortage of the compressor shown in Fig. 3 controls device 300 and can apply in air-conditioner, specifically
Ground, as shown in Figure 4, air-conditioner 400 according to an embodiment of the invention, including: compressor
402；And the phase shortage of as shown in Figure 3 compressor controls device 300.
Technical scheme being described in detail above in association with accompanying drawing, the present invention proposes a kind of new
The phase shortage control program of compressor so that when phase shortage occurs in compressor, it is possible to ensure do not damaging electricity
On the premise of components and parts in road, control compressor and continue to run with, and then ensure that air-conditioner continues
Work and use the demand of air-conditioner meeting user.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for
For those skilled in the art, the present invention can have various modifications and variations.All essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included in the present invention
Protection domain within.
Claims (11)
1. the phase shortage control method of a compressor, it is characterised in that including:
Judge compressor whether phase-deficient operation；
When judging described compressor phase-deficient operation, control described compressor with the not higher than first predetermined frequency
The running frequency of rate value continues to run with.
The phase shortage control method of compressor the most according to claim 1, it is characterised in that
Before the described step judging compressor whether phase-deficient operation, also include:
Detect the running frequency of described compressor；
When running frequency at described compressor reaches the second preset frequency value, perform described judgement compression
The step of machine whether phase-deficient operation.
The phase shortage control method of compressor the most according to claim 1, it is characterised in that institute
State the step judging compressor whether phase-deficient operation, specifically include:
Detect electric current and the electric current of the second phase of the first phase of described compressor；
If the electric current of described first phase is more than or equal to the first predetermined current value, the electric current of described second phase
Less than or equal to the second predetermined current value, and continue the first scheduled duration, then judge described compressor
Phase-deficient operation；
Wherein, described first phase is not described with described second in being the three phase mains of described compressor mutually
It is biphase that the controller of compressor is powered.
The phase shortage control method of compressor the most according to claim 1, it is characterised in that also
Including:
After judging described compressor phase-deficient operation, send prompt messages.
The phase shortage control method of compressor the most according to any one of claim 1 to 4, its
It is characterised by, also includes:
Continue to run with the running frequency of the most described first preset frequency value controlling described compressor
Duration when reaching the second scheduled duration, control described compressor shutdown.
6. the phase shortage of a compressor controls device, it is characterised in that including:
Judging unit, is used for judging compressor whether phase-deficient operation；
Control unit, for when described judging unit judges described compressor phase-deficient operation, controlling institute
State compressor to continue to run with the running frequency of the not higher than first preset frequency value.
The phase shortage of compressor the most according to claim 6 controls device, it is characterised in that also
Including: the first detector unit, for detecting the running frequency of described compressor；
Described judging unit specifically for, the fortune of described compressor detected in described first detector unit
When line frequency reaches the second preset frequency value, perform to judge the behaviour of described compressor whether phase-deficient operation
Make.
The phase shortage of compressor the most according to claim 6 controls device, it is characterised in that institute
State judging unit to include:
Second detector unit, for detecting electric current and the electricity of the second phase of the first phase of described compressor
Stream；
Performance element, for the electric current in described first phase more than or equal to the first predetermined current value, institute
The electric current stating the second phase is less than or equal to the second predetermined current value, and when continuing the first scheduled duration,
Judge described compressor phase-deficient operation；
Wherein, described first phase is not described with described second in being the three phase mains of described compressor mutually
It is biphase that the controller of compressor is powered.
The phase shortage of compressor the most according to claim 6 controls device, it is characterised in that also
Including:
Alarm unit, after judging described compressor phase-deficient operation at described judging unit,
Send prompt messages.
10. control device according to the phase shortage of the compressor according to any one of claim 6 to 9, its
Being characterised by, described control unit is additionally operable to:
Continue to run with the running frequency of the most described first preset frequency value controlling described compressor
Duration when reaching the second scheduled duration, control described compressor shutdown.
11. 1 kinds of air-conditioners, it is characterised in that including:
Compressor；And
The phase shortage of the compressor as according to any one of claim 6 to 10 controls device.
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| CN111664554A (en) * | 2020-04-27 | 2020-09-15 | 广东志高暖通设备股份有限公司 | Phase-loss detection method and device, storage medium and air conditioner |
| CN112283087A (en) * | 2020-09-07 | 2021-01-29 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor control method with open-phase protection function and controller thereof |
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| CN105953372B (en) | 2019-05-17 |
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