CN109945389A - Control method, device and the air conditioner of air conditioner - Google Patents
Control method, device and the air conditioner of air conditioner Download PDFInfo
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- CN109945389A CN109945389A CN201910248831.3A CN201910248831A CN109945389A CN 109945389 A CN109945389 A CN 109945389A CN 201910248831 A CN201910248831 A CN 201910248831A CN 109945389 A CN109945389 A CN 109945389A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention proposes a kind of control method of air conditioner, device and air conditioner, which includes: outdoor condenser, indoor evaporator, the first electric expansion valve, throttle valve and the refrigerant pipe being arranged in automatically controlled；Outdoor condenser is connected by the first electric expansion valve with the first end of refrigerant pipe, indoor evaporator is connected by throttle valve with the second end of refrigerant pipe, first electric expansion valve is in a heating mode throttling to refrigerant, and throttle valve is in cooling mode throttling to refrigerant.Control method, device and the air conditioner of air conditioner of the invention radiate to the automatically controlled of air conditioner by refrigerant pipe, can take away the heat of automatically controlled generation in time, reduce component temperature, improve reliability and the service life of air conditioner；Meanwhile for transducer air conditioning, higher working frequency can be reached at high temperature, output is more high-power, plays transducer air conditioning advantage, meets user demand.
Description
Technical field
The present invention relates to technical field of electric appliances more particularly to a kind of control methods of air conditioner, device and air conditioner.
Background technique
In the related technology, air conditioner generally use it is air-cooled radiate to automatically controlled, its heat dissipation effect is bad at high temperature, nothing
Method takes away the heat of automatically controlled generation in time, component temperature is reduced, to influence service life and the reliability of air conditioner；Meanwhile it is right
For transducer air conditioning, it is unable to reach higher working frequency at high temperature, so that the advantage of transducer air conditioning can not be played,
Meet user demand.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, the first purpose of this invention is to propose a kind of air conditioner, by refrigerant pipe to air conditioner it is automatically controlled into
Row heat dissipation, can take away the heat of automatically controlled generation in time, reduce component temperature, improve reliability and the service life of air conditioner；Meanwhile
For transducer air conditioning, higher working frequency can be reached at high temperature, output is more high-power, and it is excellent to play transducer air conditioning
Gesture meets user demand.
Second object of the present invention is to propose a kind of control method of air conditioner.
Third object of the present invention is to propose a kind of control device of air conditioner.
Fourth object of the present invention is to propose a kind of electronic equipment.
5th purpose of the invention is to propose a kind of computer readable storage medium.
In order to achieve the above object, first aspect present invention embodiment proposes a kind of air conditioner, comprising:
Outdoor condenser, indoor evaporator, the first electric expansion valve, throttle valve and the refrigerant pipe being arranged in automatically controlled；
The outdoor condenser is connected by first electric expansion valve with the first end of the refrigerant pipe, the room
Interior evaporator is connected by the throttle valve with the second end of the refrigerant pipe, and first electric expansion valve is for heating
It throttles under mode to refrigerant, the throttle valve is in cooling mode throttling to refrigerant.
The air conditioner proposed according to embodiments of the present invention, outdoor condenser pass through the first electric expansion valve and refrigerant pipe the
One end is connected, and indoor evaporator is connected by throttle valve with the second end of refrigerant pipe, and refrigerant pipe setting passes through in automatically controlled
Refrigerant pipe radiates to the automatically controlled of air conditioner, can take away the heat of automatically controlled generation in time, reduces component temperature, improves air-conditioning
The reliability of device and service life；Meanwhile for transducer air conditioning, higher working frequency can be reached at high temperature, output is more
It is high-power, transducer air conditioning advantage is played, user demand is met.
According to one embodiment of present invention, air conditioner further include: compressor, the second electric expansion valve and plate-type heat-exchange
Device；The indoor evaporator is connected by the first refrigerant branch of the plate heat exchanger with the throttle valve, the compression
Machine passes sequentially through the second refrigerant branch of the plate heat exchanger and second electric expansion valve is connected with the throttle valve,
Second electric expansion valve is in a heating mode throttling to refrigerant.
According to one embodiment of present invention, air conditioner further include: controller；The controller is used for: in the sky
After adjusting device to be switched in a chiller mode, outdoor environment temperature is obtained；Corresponding predetermined current is obtained according to the outdoor environment temperature
Threshold value, preset compressor frequency threshold and predetermined current difference threshold；After first setting time of compressor start, obtain
Current operating current and as the first electric current；After second setting time of compressor start, current work electricity is obtained
It flows and as the second electric current, and obtains current compressor frequency；If meeting following three conditions simultaneously: second electric current is big
In the difference of the predetermined current threshold, second electric current and first electric current be greater than the predetermined current difference threshold and
The current compressor frequency is less than the preset compressor frequency threshold, then controls the air conditioner and shut down and by described the
The control strategy of one electric expansion valve and second electric expansion valve is exchanged.
According to one embodiment of present invention, air conditioner further include: four-way valve and fluid reservoir；The first of the four-way valve
Valve port is connected with the outdoor condenser, and the second valve port of the four-way valve is connected with the indoor evaporator, and described four
The third valve port of port valve is connected with the fluid reservoir, and the 4th valve port of the four-way valve is connected with the compressor, described
Fluid reservoir is connected with the compressor.
According to one embodiment of present invention, air conditioner further include: separator；The fluid reservoir and the compressor point
It is not connected by the separator with the 4th valve port of the four-way valve.
In order to achieve the above object, second aspect of the present invention embodiment proposes a kind of control method of air conditioner, it is suitable for such as
Air conditioner described in first aspect present invention embodiment, the control method include:
After the air conditioner is switched in a chiller mode, outdoor environment temperature is obtained；
Corresponding predetermined current threshold, preset compressor frequency threshold and default electricity are obtained according to the outdoor environment temperature
Flow difference threshold；
After first setting time of compressor start, current operating current is obtained and as the first electric current；
After second setting time of compressor start, current operating current is obtained and as the second electric current, and obtain
Take current compressor frequency；
If meeting following three conditions simultaneously: second electric current is greater than the predetermined current threshold, second electric current
It is greater than the predetermined current difference threshold and the current compressor frequency less than described pre- with the difference of first electric current
If compressor frequency threshold value, then controls the air conditioner and shut down and by first electric expansion valve and second electronic expansion
The control strategy of valve is exchanged.
The control method of the air conditioner proposed according to embodiments of the present invention, outdoor condenser by the first electric expansion valve with
The first end of refrigerant pipe is connected, and indoor evaporator passes sequentially through the first refrigerant branch, throttle valve and the refrigerant of plate heat exchanger
The second end of pipe is connected, and refrigerant pipe setting radiates to the automatically controlled of air conditioner by refrigerant pipe in automatically controlled, can timely band
The heat of automatically controlled generation is walked, component temperature is reduced, improves reliability and the service life of air conditioner；Meanwhile for transducer air conditioning
For, higher working frequency can be reached at high temperature, output is more high-power, plays transducer air conditioning advantage, meets user's need
It asks.In addition, if meeting following three conditions simultaneously: the second electric current is greater than predetermined current threshold, the second electric current and the first electric current
Difference is greater than predetermined current difference threshold and current compressor frequency is less than preset compressor frequency threshold, can control air conditioner
It shuts down and exchanges the control strategy of the first electric expansion valve and the second electric expansion valve, it is ensured that air conditioner is in the first electronics
It remains to operate normally in the case that expansion valve and the second electric expansion valve are anti-inserted, improves system reliability.
In order to achieve the above object, third aspect present invention embodiment proposes a kind of control device of air conditioner, it is suitable for such as
Air conditioner described in first aspect present invention embodiment, the control device include:
First obtains module, for obtaining outdoor environment temperature after the air conditioner is switched in a chiller mode；
Second obtains module, for obtaining corresponding predetermined current threshold, default compression according to the outdoor environment temperature
Unit frequency threshold value and predetermined current difference threshold；
Third obtains module, for obtaining current operating current simultaneously after first setting time of compressor start
As the first electric current；
4th obtains module, for obtaining current operating current simultaneously after second setting time of compressor start
As the second electric current, and obtain current compressor frequency；
Control module, if for meeting following three conditions simultaneously: second electric current be greater than the predetermined current threshold,
The difference of second electric current and first electric current is greater than the predetermined current difference threshold and the current compressor frequency
Rate is less than the preset compressor frequency threshold, then controls the air conditioner and shut down and by first electric expansion valve and described
The control strategy of second electric expansion valve is exchanged.
The control device of the air conditioner proposed according to embodiments of the present invention, outdoor condenser by the first electric expansion valve with
The first end of refrigerant pipe is connected, and indoor evaporator passes sequentially through the first refrigerant branch, throttle valve and the refrigerant of plate heat exchanger
The second end of pipe is connected, and refrigerant pipe setting radiates to the automatically controlled of air conditioner by refrigerant pipe in automatically controlled, can timely band
The heat of automatically controlled generation is walked, component temperature is reduced, improves reliability and the service life of air conditioner；Meanwhile for transducer air conditioning
For, higher working frequency can be reached at high temperature, output is more high-power, plays transducer air conditioning advantage, meets user's need
It asks.In addition, if meeting following three conditions simultaneously: the second electric current is greater than predetermined current threshold, the second electric current and the first electric current
Difference is greater than predetermined current difference threshold and current compressor frequency is less than preset compressor frequency threshold, can control air conditioner
It shuts down and exchanges the control strategy of the first electric expansion valve and the second electric expansion valve, it is ensured that air conditioner is in the first electronics
It remains to operate normally in the case that expansion valve and the second electric expansion valve are anti-inserted, improves system reliability.
In order to achieve the above object, fourth aspect present invention embodiment proposes a kind of electronic equipment, comprising: memory, processing
Device and it is stored in the computer program that can be run on the memory and on the processor, the processor executes the journey
When sequence, the control method of the air conditioner as described in second aspect of the present invention embodiment is realized.
In order to achieve the above object, fifth aspect present invention embodiment proposes a kind of computer readable storage medium, deposit thereon
Computer program is contained, the control of the air conditioner as described in second aspect of the present invention embodiment is realized when which is executed by processor
Method processed.
Detailed description of the invention
Fig. 1 is the structure chart of air conditioner according to an embodiment of the invention；
Fig. 2 is the structure chart of air conditioner in accordance with another embodiment of the present invention；
Fig. 3 is the flow chart of the control method of air conditioner according to an embodiment of the invention；
Fig. 4 is the structure chart of the control device of air conditioner according to an embodiment of the invention；
Fig. 5 is the structure chart of electronic equipment according to an embodiment of the invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
With reference to the accompanying drawing come describe the embodiment of the present invention air conditioner control method, device and air conditioner.
Fig. 1 is the structure chart of air conditioner according to an embodiment of the invention, as shown in Figure 1, the air conditioner includes:
Outdoor condenser 11, indoor evaporator 12, the first electric expansion valve 15, throttle valve 16 and it is arranged in automatically controlled 13
Refrigerant pipe 14；
Outdoor condenser 11 is connected by the first electric expansion valve 15 with the first end of refrigerant pipe 14, indoor evaporator 12
Be connected by throttle valve 16 with the second end of refrigerant pipe 14, the first electric expansion valve 15 in a heating mode to refrigerant into
Row throttling, throttle valve 16 is in cooling mode throttling to refrigerant.
In the embodiment of the present invention, outdoor condenser 11 is connected by the first electric expansion valve 15 with the first end of refrigerant pipe 14
Logical, indoor evaporator 12 is connected by throttle valve 16 with the second end of refrigerant pipe 14, and refrigerant pipe 14 is arranged in automatically controlled 13, is led to
It crosses refrigerant pipe 13 to radiate to automatically controlled 13, automatically controlled 13 heat generated under high temperature can be taken away in time, reduce the temperature of component,
It improves reliability and the service life of air conditioner, meanwhile, for transducer air conditioning, higher work frequency can be reached at high temperature
Rate, output is more high-power, plays transducer air conditioning advantage, meets user demand.
Wherein, the concretely one-way throttle valve of throttle valve 16.In a heating mode, by the first electric expansion valve 15 to cold
Matchmaker throttles；In cooling mode, one-way throttle is carried out to refrigerant by throttle valve 16, can avoid automatically controlled 13 and condensation occurs,
To improve automatically controlled 13 reliability.
The air conditioner proposed according to embodiments of the present invention, outdoor condenser pass through the first electric expansion valve and refrigerant pipe the
One end is connected, and indoor evaporator is connected by throttle valve with the second end of refrigerant pipe, and refrigerant pipe setting passes through in automatically controlled
Refrigerant pipe radiates to the automatically controlled of air conditioner, can take away the heat of automatically controlled generation in time, reduces component temperature, improves air-conditioning
The reliability of device and service life；Meanwhile for transducer air conditioning, higher working frequency can be reached at high temperature, output is more
It is high-power, transducer air conditioning advantage is played, user demand is met.
Further, as shown in Fig. 2, Fig. 2 is the structure chart of air conditioner in accordance with another embodiment of the present invention, such as Fig. 2
Shown, on the basis of embodiment shown in Fig. 1, which may also include that
Compressor 17, the second electric expansion valve 18 and plate heat exchanger 19；
Indoor evaporator 12 is connected by the first refrigerant branch of plate heat exchanger 19 with throttle valve 16, compressor 17 according to
Secondary to be connected by the second refrigerant branch and the second electric expansion valve 18 of plate heat exchanger 19 with throttle valve 16, the second electronics is swollen
Swollen valve 18 is in a heating mode throttling to refrigerant.
In the embodiment of the present invention, concretely the compressor with spray enthalpy as shown in Figure 2, compressor 17 can wrap compressor 17
It includes: exhaust outlet of compressor 35；Compressor return air mouth 33；Compressor sprays enthalpy mouth 34.It is settable in the outside of 17 exhaust pipe of compressor
Exhaust gas temperature sensor 30, for detecting 17 delivery temperature of compressor.The air conditioner may also include high-voltage switch gear 29 and low pressure is opened
32 are closed, 29 one end of high-voltage switch gear is embedded into the inside of 17 exhaust pipe of compressor, is higher than it for detecting pressure at expulsion, and in pressure
System protection is realized when cut off value；32 one end of low tension switch is embedded in the inside of 17 muffler of compressor, for detecting back pressure,
And system protection is realized when pressure is lower than its off value.
Plate heat exchanger 19 is used in a heating mode, so that passing through its first internal refrigerant branch and the second refrigerant branch
The refrigerant of the different temperatures on road realizes heat exchange, so that the refrigerant of compressor spray enthalpy mouth 34 is gaseous state, to realize compressor 17
Under certain condition, heating capacity output can be increased substantially.Wherein, spray enthalpy pipeline (the second refrigerant branch of plate heat exchanger 19
Road) spray enthalpy entrance and exit can also be respectively set spray enthalpy inlet temperature sensor 27 and spray enthalpy outlet temperature sensor
28, it is respectively used to the temperature of detection spray enthalpy entrance and the temperature in spray enthalpy exit.Second electric expansion valve 18 is for heating
It throttles under mode to refrigerant, specifically can accordingly be grasped according to the temperature of spray enthalpy entrance and the temperature in spray enthalpy exit
Make.
Further, as shown in Fig. 2, on the basis of embodiment shown in Fig. 1, which may also include that
Four-way valve 20 and fluid reservoir 21；
First valve port of four-way valve 20 is connected with outdoor condenser 11, the second valve port and indoor evaporator of four-way valve 20
12 are connected, and the third valve port of four-way valve 20 is connected with fluid reservoir 21, and the 4th valve port of four-way valve 20 is connected with compressor 17
Logical, fluid reservoir 21 is connected with compressor 17.
Further, as shown in Fig. 2, on the basis of embodiment shown in Fig. 1, which may also include that separator 22；
Fluid reservoir 21 and compressor 17 are connected by separator 22 with the 4th valve port of four-way valve 20 respectively.
In the embodiment of the present invention, which may also include oil return capillary 31, and separator 22 is for realizing separation compression
The cold-boiled oil of machine discharge, by compressor return air pipe, under the action of height pressure difference, is realized row by oil return capillary 31
Cold-boiled oil out flows back into compressor 17, avoids 17 oil starvation of compressor.
Further, as shown in Fig. 2, the air conditioner may also include that outdoor environment temperature sensor 23；Temperature in the middle part of condenser
Spend sensor 24；Indoor environment temperature sensor 25；Evaporator middle portion temperature sensor 26.Wherein, condenser middle portion temperature passes
The surface of outdoor 11 middle part copper pipe of condenser is arranged in sensor 24, is used for 11 middle portion temperature of sensing chamber's external condenser；Outdoor environment
Temperature sensor 23 is arranged on the fin of outdoor 11 windward side of condenser, for detecting outdoor environment temperature；Indoor environment temperature
It spends sensor 25 to be arranged on the fin of 12 windward side of evaporator indoors, for detecting indoor environment temperature；Temperature in the middle part of evaporator
The surface that 12 middle part copper pipe of evaporator indoors is arranged in sensor 26 is spent, for detecting the temperature at 12 middle part of indoor evaporator.
The working principle of the air conditioner of the embodiment of the present invention is as follows:
(1) when air conditioner freezes, compressor 17 is discharged high temperature and high pressure gas refrigerant and flows through separator 22, four-way valve 20 to room
After 11 side of external condenser is radiated, by the first electric expansion valve 15 (aperture is maximum at this time), flow through cold in automatically controlled 13
Matchmaker's pipe 14 is throttled by throttle valve 16, forms low-temp low-pressure refrigerant, and refrigerant passes through the first refrigerant of plate heat exchanger 19
Branch enters indoor evaporator 12 and carries out heat absorption evaporation, enters back into fluid reservoir 21, gaseous coolant flow into again in compressor 17 into
Row circulation.
(2) when air conditioner heat-production, compressor 17 is discharged high temperature and high pressure gas refrigerant and flows through separator 22, four-way valve 20 to room
After interior 12 side of evaporator is radiated, the first refrigerant branch that refrigerant flows into plate heat exchanger 19 again (is made at this time to throttle valve 16
Heat does not throttle), the refrigerant pipe 14 in automatically controlled 13, throttle by the first electric expansion valve 15, form low-temp low-pressure refrigerant, refrigerant is again
It is flowed into outdoor side condenser 11 and carries out heat absorption evaporation, into fluid reservoir 21, gaseous coolant is flowed into compressor 17 again and followed
Ring.Plate heat exchanger 19 in a heating mode so that passing through the difference of its first internal refrigerant branch and the second refrigerant branch
The refrigerant of temperature realizes heat exchange, so that the refrigerant of compressor spray enthalpy mouth 34 is gaseous state, to realize compressor 17 in certain item
Under part, heating capacity output can be increased substantially.
Further, which may also include that controller, be used for:
After air conditioner is switched in a chiller mode, outdoor environment temperature T4 is obtained；According to outdoor environment temperature T4 acquisition pair
Predetermined current threshold I0, the preset compressor frequency threshold F0 and predetermined current difference threshold A answered；Start first in compressor 17
After setting time, current operating current is obtained and as the first electric current I1；After compressor 17 starts the second setting time, obtain
It takes current operating current and as the second electric current I2, and obtains current compressor frequency F；If meeting following three items simultaneously
Part: difference I2-I1 of the second electric current I2 greater than predetermined current threshold I0, the second electric current I2 and the first electric current I1 is greater than predetermined current
Difference threshold A and current compressor frequency F is less than preset compressor frequency threshold F0, then controls air conditioner and shut down and by first
The control strategy of electric expansion valve 15 and the second electric expansion valve 18 is exchanged.
In the embodiment of the present invention, outdoor environment temperature T4 and predetermined current threshold I0 can be pre-established in a program, is preset
The mapping relations of compressor frequency threshold value F0 and predetermined current difference threshold A.After air conditioner is switched in a chiller mode, by such as
Outdoor environment temperature sensor shown in Fig. 2 23 obtains outdoor environment temperature T4, inquires above-mentioned mapping relations, obtains corresponding with T4
Predetermined current threshold I0, preset compressor frequency threshold F0 and predetermined current difference threshold A；In first setting of the starting of compressor 17
After time, current operating current is obtained and as the first electric current I1；After compressor 17 starts the second setting time, acquisition is worked as
Preceding operating current and as the second electric current I2, and obtain current compressor frequency F；If meeting following three items simultaneously
Part: I2 > I0, I2-I1 > A and F < F0 then can determine whether 18 position of the first electric expansion valve 15 and the second electric expansion valve at this time
Anti-inserted, control air conditioner is shut down, and by built-in pre-set programs by the first electric expansion valve 15 and the second electric expansion valve 18
Control strategy is exchanged, and control strategy is i.e. in cooling or heating mode to the first electric expansion valve 15 and the second electronics
The control mode of 18 aperture of expansion valve, for example, the control strategy of the first electric expansion valve 15 is opened under current refrigeration mode for first
Degree, the control strategy of the second electric expansion valve 18 are the second aperture, then are by the control strategy exchange of the first electric expansion valve 15
Second aperture, it is the first aperture that the control strategy of the second electric expansion valve 18, which is exchanged, to guarantee that air conditioner operates normally, is mentioned
High system reliability.
The air conditioner proposed according to embodiments of the present invention, outdoor condenser pass through the first electric expansion valve and refrigerant pipe the
One end is connected, and indoor evaporator is connected by throttle valve with the second end of refrigerant pipe, and refrigerant pipe setting passes through in automatically controlled
Refrigerant pipe radiates to the automatically controlled of air conditioner, can take away the heat of automatically controlled generation in time, reduces component temperature, improves air-conditioning
The reliability of device and service life；Meanwhile for transducer air conditioning, higher working frequency can be reached at high temperature, output is more
It is high-power, transducer air conditioning advantage is played, user demand is met.In addition, if meeting following three conditions simultaneously: the second electric current is big
It is greater than predetermined current difference threshold and current compressor frequency in the difference of predetermined current threshold, the second electric current and the first electric current
Less than preset compressor frequency threshold, air conditioner can control to shut down and by the control of the first electric expansion valve and the second electric expansion valve
Strategy processed is exchanged, it is ensured that air conditioner remains to normally in the case where the first electric expansion valve and anti-inserted the second electric expansion valve
Operation improves system reliability.
Fig. 3 is the flow chart of the control method of air conditioner according to an embodiment of the invention, which is suitable for
Air conditioner shown in above-described embodiment, as shown in figure 3, the control method includes:
S101 obtains outdoor environment temperature after air conditioner is switched in a chiller mode.
S102 obtains corresponding predetermined current threshold, preset compressor frequency threshold according to outdoor environment temperature and presets
Current differential threshold value.
S103 obtains current operating current and as the first electric current after the first setting time of compressor start.
S104 obtains current operating current and as the second electric current after the second setting time of compressor start, and obtains
Take current compressor frequency.
S105, if meeting following three conditions simultaneously: the second electric current is greater than predetermined current threshold, the second electric current and the first electricity
The difference of stream is greater than predetermined current difference threshold and current compressor frequency is less than preset compressor frequency threshold, then controls sky
It adjusts device to shut down and exchanges the control strategy of the first electric expansion valve and the second electric expansion valve.
It should be noted that the aforementioned explanation to air conditioner embodiment is also applied for the control of the air conditioner of the embodiment
Method processed, details are not described herein again.
The control method of the air conditioner proposed according to embodiments of the present invention, outdoor condenser by the first electric expansion valve with
The first end of refrigerant pipe is connected, and indoor evaporator passes sequentially through the first refrigerant branch, throttle valve and the refrigerant of plate heat exchanger
The second end of pipe is connected, and refrigerant pipe setting radiates to the automatically controlled of air conditioner by refrigerant pipe in automatically controlled, can timely band
The heat of automatically controlled generation is walked, component temperature is reduced, improves reliability and the service life of air conditioner；Meanwhile for transducer air conditioning
For, higher working frequency can be reached at high temperature, output is more high-power, plays transducer air conditioning advantage, meets user's need
It asks.In addition, if meeting following three conditions simultaneously: the second electric current is greater than predetermined current threshold, the second electric current and the first electric current
Difference is greater than predetermined current difference threshold and current compressor frequency is less than preset compressor frequency threshold, can control air conditioner
It shuts down and exchanges the control strategy of the first electric expansion valve and the second electric expansion valve, it is ensured that air conditioner is in the first electronics
It remains to operate normally in the case that expansion valve and the second electric expansion valve are anti-inserted, improves system reliability.
Fig. 4 is the structure chart of the control device of air conditioner according to an embodiment of the invention, which is suitable for
Air conditioner shown in above-described embodiment, as shown in figure 4, the control device includes:
First obtains module 41, for obtaining outdoor environment temperature after air conditioner is switched in a chiller mode；
Second obtains module 42, for obtaining corresponding predetermined current threshold, preset compressor according to outdoor environment temperature
Frequency threshold and predetermined current difference threshold；
Third obtains module 43, for obtaining current operating current and work after the first setting time of compressor start
For the first electric current；
4th obtains module 44, for obtaining current operating current and work after the second setting time of compressor start
For the second electric current, and obtain current compressor frequency；
Control module 45, if for meeting following three conditions simultaneously: the second electric current is greater than predetermined current threshold, the second electricity
The difference of stream and the first electric current is greater than predetermined current difference threshold and current compressor frequency is less than preset compressor frequency threshold
Value then controls air conditioner and shuts down and exchange the control strategy of the first electric expansion valve and the second electric expansion valve.
It should be noted that the aforementioned explanation to air conditioner embodiment is also applied for the control of the air conditioner of the embodiment
Device processed, details are not described herein again.
The control method of the air conditioner proposed according to embodiments of the present invention, outdoor condenser by the first electric expansion valve with
The first end of refrigerant pipe is connected, and indoor evaporator passes sequentially through the first refrigerant branch, throttle valve and the refrigerant of plate heat exchanger
The second end of pipe is connected, and refrigerant pipe setting radiates to the automatically controlled of air conditioner by refrigerant pipe in automatically controlled, can timely band
The heat of automatically controlled generation is walked, component temperature is reduced, improves reliability and the service life of air conditioner；Meanwhile for transducer air conditioning
For, higher working frequency can be reached at high temperature, output is more high-power, plays transducer air conditioning advantage, meets user's need
It asks.In addition, if meeting following three conditions simultaneously: the second electric current is greater than predetermined current threshold, the second electric current and the first electric current
Difference is greater than predetermined current difference threshold and current compressor frequency is less than preset compressor frequency threshold, can control air conditioner
It shuts down and exchanges the control strategy of the first electric expansion valve and the second electric expansion valve, it is ensured that air conditioner is in the first electronics
It remains to operate normally in the case that expansion valve and the second electric expansion valve are anti-inserted, improves system reliability.
In order to realize above-described embodiment, the embodiment of the present invention also proposes a kind of electronic equipment 50, as shown in figure 5, the electronics
Equipment includes memory 51 and processor 52.It is stored with the computer program that can be run on the processor 52 on memory 51, locates
It manages device 52 and executes program, realize the control method of the air conditioner as shown in above-described embodiment.
In order to realize above-described embodiment, the embodiment of the present invention also proposes a kind of non-transitorycomputer readable storage medium,
It is stored thereon with computer program, when which is executed by processor, realizes the control of the air conditioner as shown in above-described embodiment
Method.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
It can be combined in any suitable manner in a or multiple embodiment or examples.In addition, without conflicting with each other, the technology of this field
The feature of different embodiments or examples described in this specification and different embodiments or examples can be combined by personnel
And combination.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (9)
1. a kind of air conditioner characterized by comprising outdoor condenser, indoor evaporator, the first electric expansion valve, throttle valve
With the refrigerant pipe being arranged in automatically controlled；
The outdoor condenser is connected by first electric expansion valve with the first end of the refrigerant pipe, the interior steaming
Hair device is connected by the throttle valve with the second end of the refrigerant pipe, and first electric expansion valve is used in heating mode
Under throttle to refrigerant, the throttle valve is in cooling mode throttling to refrigerant.
2. air conditioner according to claim 1, which is characterized in that further include: compressor, the second electric expansion valve and board-like
Heat exchanger；
The indoor evaporator is connected by the first refrigerant branch of the plate heat exchanger with the throttle valve, the compression
Machine passes sequentially through the second refrigerant branch of the plate heat exchanger and second electric expansion valve is connected with the throttle valve,
Second electric expansion valve is in a heating mode throttling to refrigerant.
3. air conditioner according to claim 2, which is characterized in that further include: controller；The controller is used for:
After the air conditioner is switched in a chiller mode, outdoor environment temperature is obtained；
It is poor that corresponding predetermined current threshold, preset compressor frequency threshold and predetermined current are obtained according to the outdoor environment temperature
It is worth threshold value；
After first setting time of compressor start, current operating current is obtained and as the first electric current；
After second setting time of compressor start, current operating current is obtained and as the second electric current, and obtain and work as
Preceding compressor frequency；
If meeting following three conditions simultaneously: second electric current is greater than the predetermined current threshold, second electric current and institute
The difference for stating the first electric current is greater than the predetermined current difference threshold and the current compressor frequency is less than the default pressure
Contracting unit frequency threshold value then controls the air conditioner and shuts down and by first electric expansion valve and second electric expansion valve
Control strategy is exchanged.
4. air conditioner according to claim 2, which is characterized in that further include: four-way valve and fluid reservoir；
First valve port of the four-way valve is connected with the outdoor condenser, the second valve port of the four-way valve and the interior
Evaporator is connected, and the third valve port of the four-way valve is connected with the fluid reservoir, the 4th valve port of the four-way valve and institute
It states compressor to be connected, the fluid reservoir is connected with the compressor.
5. air conditioner according to claim 4, which is characterized in that further include: separator；
The fluid reservoir and the compressor pass through the separator respectively and are connected with the 4th valve port of the four-way valve.
6. a kind of control method of air conditioner, which is characterized in that be suitable for air conditioner as claimed in claim 2, the control
Method includes:
After the air conditioner is switched in a chiller mode, outdoor environment temperature is obtained；
It is poor that corresponding predetermined current threshold, preset compressor frequency threshold and predetermined current are obtained according to the outdoor environment temperature
It is worth threshold value；
After first setting time of compressor start, current operating current is obtained and as the first electric current；
After second setting time of compressor start, current operating current is obtained and as the second electric current, and obtain and work as
Preceding compressor frequency；
If meeting following three conditions simultaneously: second electric current is greater than the predetermined current threshold, second electric current and institute
The difference for stating the first electric current is greater than the predetermined current difference threshold and the current compressor frequency is less than the default pressure
Contracting unit frequency threshold value then controls the air conditioner and shuts down and by first electric expansion valve and second electric expansion valve
Control strategy is exchanged.
7. a kind of control device of air conditioner, which is characterized in that be suitable for air conditioner as claimed in claim 2, the control
Device includes:
First obtains module, for obtaining outdoor environment temperature after the air conditioner is switched in a chiller mode；
Second obtains module, for obtaining corresponding predetermined current threshold, preset compressor frequency according to the outdoor environment temperature
Rate threshold value and predetermined current difference threshold；
Third obtains module, for obtaining current operating current and conduct after first setting time of compressor start
First electric current；
4th obtains module, for obtaining current operating current and conduct after second setting time of compressor start
Second electric current, and obtain current compressor frequency；
Control module, if for meeting following three conditions simultaneously: second electric current is greater than the predetermined current threshold, described
The difference of second electric current and first electric current is greater than the predetermined current difference threshold and the current compressor frequency is small
In the preset compressor frequency threshold, then controls the air conditioner and shut down and by first electric expansion valve and described second
The control strategy of electric expansion valve is exchanged.
8. a kind of electronic equipment characterized by comprising memory, processor and be stored on the memory and can be in institute
It states the computer program run on processor and realizes air-conditioning as claimed in claim 6 when the processor executes described program
The control method of device.
9. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is held by processor
The control method of air conditioner as claimed in claim 6 is realized when row.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910248831.3A CN109945389B (en) | 2019-03-29 | 2019-03-29 | Control method and device of air conditioner and air conditioner |
| CA3134876A CA3134876C (en) | 2019-03-25 | 2019-07-29 | Air conditioner control method and device and air conditioner |
| ES19922216T ES2948266T3 (en) | 2019-03-25 | 2019-07-29 | Air conditioner control procedure and device, and air conditioner |
| PCT/CN2019/098237 WO2020191976A1 (en) | 2019-03-25 | 2019-07-29 | Air conditioner control method and device, and air conditioner |
| EP19922216.7A EP3929500B1 (en) | 2019-03-25 | 2019-07-29 | Air conditioner control method and device, and air conditioner |
| US17/482,927 US20220010979A1 (en) | 2019-03-25 | 2021-09-23 | Air conditioner control method and device and air conditioner |
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| CN201910248831.3A CN109945389B (en) | 2019-03-29 | 2019-03-29 | Control method and device of air conditioner and air conditioner |
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| WO2020191976A1 (en) * | 2019-03-25 | 2020-10-01 | 广东美的制冷设备有限公司 | Air conditioner control method and device, and air conditioner |
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| CN109945389B (en) | 2020-05-05 |
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