CN110486918A - Detection components, control method and air conditioner for air conditioner - Google Patents
Detection components, control method and air conditioner for air conditioner Download PDFInfo
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- CN110486918A CN110486918A CN201910793893.2A CN201910793893A CN110486918A CN 110486918 A CN110486918 A CN 110486918A CN 201910793893 A CN201910793893 A CN 201910793893A CN 110486918 A CN110486918 A CN 110486918A
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- valve
- heat exchanger
- temperature
- air conditioner
- valve group
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- 238000001514 detection method Methods 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims abstract description 57
- 239000003507 refrigerant Substances 0.000 claims abstract description 119
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims description 38
- 238000001816 cooling Methods 0.000 claims description 22
- 238000010977 unit operation Methods 0.000 claims description 14
- 241000486406 Trachea Species 0.000 claims 1
- 210000003437 trachea Anatomy 0.000 claims 1
- 238000005057 refrigeration Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Classifications
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- 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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- 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
- F24F11/88—Electrical aspects, e.g. circuits
-
- 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
- F24F11/89—Arrangement or mounting of control or safety devices
-
- 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
- F24F2110/10—Temperature
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention provides a kind of detection components, control method and air conditioner for air conditioner, wherein the detection components for air conditioner include: at least one set of on-off valve group, and indoor unit and on-off valve group correspond；The first end of on-off valve group is connected with the refrigerant tracheae of outdoor unit, and the first end of the heat exchanger of the second end and indoor unit of on-off valve group is connected, and the second end of heat exchanger is connected with the liquid pipe of outdoor unit；Control device, control device is connected with on-off valve group, for according to the environment temperature in space where the open and-shut mode of on-off valve group, indoor unit and the temperature of heat exchanger determine on-off valve group whether failure, it can judge whether on-off valve group breaks down by the temperature of environment temperature and heat exchanger in the space where detection indoor unit, to determine failure in time and to be handled, so that it is guaranteed that the reliability service of air conditioner.
Description
Technical field
The present invention relates to technical field of air conditioner, in particular to a kind of detection components for air conditioner, one
Control method and a kind of air conditioner of the kind for the detection components of air conditioner.
Background technique
In related art scheme, the heat exchanger of outdoor unit and indoor unit is connected usually using on-off valve, and in control room
The enabling of machine and the operational mode of indoor unit will cause unlatching, heating capacity or the system of indoor unit when on-off valve breaks down
There is exception in cooling capacity, influences the normal use of user, therefore ensures that the normal operation of on-off valve is most important.
Therefore, it is necessary to a kind of fault detection means of on-off valve to realize the malfunction monitoring to on-off valve, and then ensure sky
Adjust the normal operation of device.
Summary of the invention
The present invention is directed to solve at least one of the technical problems existing in the prior art or related technologies.
For this purpose, the first aspect of the invention is, a kind of detection components for air conditioner are provided.
The second aspect of the invention is, provides a kind of control method of detection components for air conditioner.
The third aspect of the invention is, provides a kind of air conditioner.
In view of this, according to the first aspect of the invention, the present invention provides a kind of detection components for air conditioner,
Air conditioner includes: outdoor unit and at least one indoor unit, wherein the detection components for air conditioner include: at least one set of on-off
Valve group, indoor unit and on-off valve group correspond；The first end of on-off valve group is connected with the refrigerant tracheae of outdoor unit, on-off valve
The second end of group is connected with the first end of the heat exchanger of indoor unit, and the second end of heat exchanger is connected with the liquid pipe of outdoor unit；
Control device, control device are connected with on-off valve group, for according to space where the open and-shut mode of on-off valve group, indoor unit
Environment temperature and the temperature of heat exchanger determine on-off valve group whether failure.
In the technical scheme, in the process of running, such as operation is in cooling mode or under heating mode, refrigerant for air conditioner
It can be flowed between the refrigerant tracheae of outdoor unit, the heat exchanger of indoor unit, on-off valve group and the liquid pipe of outdoor unit, to realize refrigerant
Circulation.The case where on-off valve group breaks down is mostly to leak, and under serious situation, open and close exception occurs, in refrigerant stream
During dynamic heat exchanger can be carried out with the medium in the space where indoor unit it is cold and hot exchange, therefore, in known specified on-off valve
In the case where the open and-shut mode of group, pass through the temperature of environment temperature and heat exchanger in the space where detection indoor unit
Judge whether on-off valve group breaks down, to determine failure in time and to be handled, so that it is guaranteed that the reliable fortune of air conditioner
Row.Specifically, under the refrigeration mode of air conditioner operation, high-pressure gaseous refrigerant passes sequentially through after the heat exchange of the heat exchanger of outdoor unit
The liquid pipe of outdoor unit, the heat exchanger of indoor unit, on-off valve group and outdoor unit refrigerant tracheae flow back to outdoor unit, to realize refrigeration mould
Refrigerant circulation under formula；Under the heating mode of air conditioner operation, high-pressure gaseous refrigerant passes through the refrigerant tracheae by outdoor unit, leads to
The liquid pipe of disconnected valve group, the heat exchanger of indoor unit and outdoor unit flows back to outdoor unit, specifically flows back into the heat exchanger of outdoor unit, finally
It flows back into compressor, to realize the refrigerant circulation under heating mode.
In addition, the detection components for air conditioner in above-mentioned technical proposal provided by the invention can also have it is following attached
Add technical characteristic:
It in the above-mentioned technical solutions, further, further include at least two temperature measuring equipments for the detection components of air conditioner,
One in at least two temperature measuring equipments environment temperature for space where obtaining indoor unit, at least two temperature measuring equipments
Another is used to obtain the temperature of heat exchanger, wherein the temperature of heat exchanger includes: the inlet temperature and/or heat exchanger of heat exchanger
Middle portion temperature；Control device is according to the inlet temperature of heat exchanger and/or middle portion temperature, environment temperature and the on-off valve of heat exchanger
Group open and-shut mode determine on-off valve group whether failure.
In the technical scheme, due at least two temperature measuring equipments that the temperature of environment temperature and heat exchanger is by setting
It obtains, therefore, the detection components for air conditioner can execute automatic detection to on-off valve group.
In any of the above-described technical solution, further, on-off valve group includes the first on-off valve and the second on-off valve, refrigerant
Tracheae includes: the first refrigerant tracheae and the second refrigerant tracheae, wherein the first end of the first on-off valve is connected with the first refrigerant tracheae
It connects, the second end of the first on-off valve is connected with the first end of heat exchanger；The first end of second on-off valve and the second refrigerant tracheae
It is connected, the second end of the second on-off valve is connected with the first end of heat exchanger, wherein the atmospheric pressure value of the first refrigerant tracheae is less than
The atmospheric pressure value of second refrigerant tracheae.
In the technical scheme, on-off valve group includes the first on-off valve and the second on-off valve, and the first on-off valve and second
On-off valve with the first refrigerant tracheae of outdoor unit and the second refrigerant tracheae, passes through the first on-off valve of control and the second on-off valve respectively
Switched conductive state, the environment temperature in space and the temperature of heat exchanger in conjunction with where indoor unit determine that the first on-off valve and second leads to
Disconnected valve whether failure.
Specifically, the operational mode of indoor unit is adjusted according to the open and-shut mode of the first on-off valve and the second on-off valve.
In any of the above-described technical solution, further, the detection components for air conditioner further include: suggestion device mentions
Showing device is connected with control device, and control device is also used to: the fault message of control suggestion device output on-off valve group.
In the technical scheme, further include suggestion device for the detection components of air conditioner, therefore, determining on-off valve group
When failure, corresponding fault message is issued, to remind user to handle in time, and then improves the reliable of air conditioner operation
Property.
In the second aspect of the invention, a kind of control method of detection components for air conditioner is proposed, for controlling
As any of the above-described is used for the detection components of air conditioner, wherein the control method of the detection components for air conditioner includes: basis
The temperature of the heat exchanger of the open and-shut mode of on-off valve group, the environment temperature in indoor unit place space and indoor unit determines on-off valve group
Whether failure.
In the technical scheme, in the process of running, such as operation is in cooling mode or under heating mode, refrigerant for air conditioner
It can be flowed between the refrigerant tracheae of outdoor unit, the heat exchanger of indoor unit, on-off valve group and the liquid pipe of outdoor unit, to realize refrigerant
Circulation.The case where on-off valve group breaks down is mostly to leak, and under serious situation, open and close exception occurs, in refrigerant stream
During dynamic heat exchanger can be carried out with the medium in the space where indoor unit it is cold and hot exchange, therefore, in known specified on-off valve
In the case where the open and-shut mode of group, pass through the temperature of environment temperature and heat exchanger in the space where detection indoor unit
Judge whether on-off valve group breaks down, to determine failure in time and to be handled, so that it is guaranteed that the reliable fortune of air conditioner
Row.
Specifically, under the refrigeration mode of air conditioner operation, high-pressure gaseous refrigerant is after the heat exchange of the heat exchanger of outdoor unit, successively
Outdoor unit is flowed back to by the refrigerant tracheae of the liquid pipe of outdoor unit, the heat exchanger of indoor unit, on-off valve group and outdoor unit, to realize system
Refrigerant circulation under cold mode；Under the heating mode of air conditioner operation, high-pressure gaseous refrigerant passes through the refrigerant gas by outdoor unit
The liquid pipe of pipe, on-off valve group, the heat exchanger of indoor unit and outdoor unit flows back to outdoor unit, specifically flows back into the heat exchange of outdoor unit
Device is finally flow back into compressor, to realize the refrigerant circulation under heating mode.
In addition, the control method of the detection components for air conditioner in above-mentioned technical proposal provided by the invention can be with
With following additional technical feature:
In the above-mentioned technical solutions, further, according to the environment in space where the open and-shut mode of on-off valve group, indoor unit
The temperature of the heat exchanger of temperature and indoor unit determine on-off valve group whether failure the step of, specifically include: based on air conditioner meet
First preset condition, and the environment temperature in space where indoor unit is not equal to the temperature of heat exchanger, determines that on-off valve group leaks；Its
In, the first preset condition includes: that outdoor unit is run in cooling or heating mode, and on-off valve group is in off state.
In the technical scheme, when outdoor unit is run in cooling or heating mode, i.e., outdoor unit is in operational process
The refrigerant of middle output will affect the temperature of the heat exchanger of indoor unit, therefore, when on-off valve group is in off state, on-off valve group
The refrigerant between outdoor unit and the heat exchanger of indoor unit can be blocked to exchange, specifically, when in refrigeration mode, be in off state
Under on-off valve group the refrigerant in the heat exchanger of indoor unit can be blocked to flow back to outdoor unit by the refrigerant tracheae of outdoor unit, and when
Under heating mode, on-off valve group can block the refrigerant of outdoor unit to flow into the heat exchanger of indoor unit, therefore, as long as detecting interior
When the environment temperature in space is not equal to the temperature of heat exchanger where machine, so that it may determine that on-off valve group is not completely in cut-off
State, i.e. on-off valve group are in leak condition, need to only obtain the temperature and on-off of environment temperature and heat exchanger in the process
Judgement can be realized in valve group open and-shut mode, and the parameter of acquisition is few, and the logic of judgement is simple.
In any of the above-described technical solution, further, according to space where the open and-shut mode of on-off valve group, indoor unit
The temperature of the heat exchanger of environment temperature and indoor unit determine on-off valve group whether failure the step of, further includes: it is full based on air conditioner
The second preset condition of foot, and absolute value corresponding to the difference of the temperature of the environment temperature and heat exchanger in space where indoor unit is small
In the first specified numerical value, the starting failure of on-off valve group is determined；Wherein, the second preset condition includes: that outdoor unit operates in refrigeration mould
Under formula or heating mode, and on-off valve group is in the conductive state.
In the technical scheme, determine on-off valve group whether failure the step of, further include that it is default to meet second in air conditioner
Under the conditions of, whether absolute value corresponding to the difference of the temperature of the environment temperature and heat exchanger in space where indoor unit is less than first
Specified numerical value, if being less than, it is to be appreciated that refrigerant flows into the heat exchanger of indoor unit not over on-off valve group, i.e. on-off
Valve group open failure, and on-off valve group starting failure deterministic process be based on whether leakage judgement after carry out, because
This, it is only necessary to switching the open and-shut mode of on-off valve group and reacquiring environment temperature and the temperature of heat exchanger can determine, because
This, obtains and the parameter of control is less, and the logic of judgement is simple, it is easy to accomplish.
In any of the above-described technical solution, further, the first preset condition is met based on air conditioner, and where indoor unit
It the step of environment temperature in space is not equal to the temperature of heat exchanger, determines the leakage of on-off valve group, specifically includes: full based on air conditioner
The first preset condition of foot, and the difference of environment temperature and the temperature of heat exchanger is greater than or equal to the second specified numerical value, determines on-off
Valve group leakage.
In the technical scheme, it is specified only to determine that the difference of the temperature of environment temperature and heat exchanger is greater than or equal to second
Numerical value just assert the leakage of on-off valve group, can be to avoid the erroneous judgement occurred caused by deviation because of temperature detection.
In any of the above-described technical solution, further, on-off valve group includes the first on-off valve and the second on-off valve, heat exchange
The temperature of device includes: the inlet temperature of heat exchanger and the middle portion temperature of heat exchanger, and the second specified numerical value includes that third specifies numerical value
With the 4th specified numerical value；Meet the first preset condition based on air conditioner, and the difference of environment temperature and the temperature of heat exchanger is greater than
Or the step of being equal to the second specified numerical value, determining the leakage of on-off valve group, it specifically includes: refrigeration mode is operated in based on outdoor unit
Under, the first on-off valve and the second on-off valve be in off state, and the difference of environment temperature and the inlet temperature of heat exchanger is greater than
Or be equal to third and specify numerical value, determine that the first on-off valve leaks；Based on outdoor unit operation in a heating mode, the first on-off valve and
First on-off valve is in off state, and the difference of the middle portion temperature of heat exchanger and environment temperature is greater than or equal to the 4th specified number
Value determines that the second on-off valve leaks.
In the technical scheme, the first on-off valve and the second on-off valve respectively with the first refrigerant tracheae and the first refrigerant tracheae
Be connected, due to the first refrigerant tracheae atmospheric pressure value less than the second refrigerant tracheae atmospheric pressure value, when the first on-off valve and
When two on-off valves leak, since the atmospheric pressure value in the first refrigerant tracheae and the first refrigerant tracheae is different, refrigerant flows to room
The position of interior machine heat exchanger is also different, therefore, in the decision process whether the first on-off valve and the second on-off valve leak, respectively
The inlet temperature of heat exchanger and the middle portion temperature of heat exchanger are chosen, to improve the confidence level of leak judgement.
In any of the above-described technical solution, further, on-off valve group includes the first on-off valve and the second on-off valve, heat exchange
The temperature of device includes: the inlet temperature of heat exchanger and the middle portion temperature of heat exchanger, and the first specified numerical value includes the five fingers fixed number value
With the 6th specified numerical value；Meet the second preset condition based on air conditioner, and the environment temperature and heat exchanger in space where indoor unit
Temperature difference corresponding to absolute value less than the first specified numerical value, it is the step of determining the starting failure of on-off valve group, specific to wrap
Include: based on outdoor unit operation in cooling mode, the first on-off valve is in the conductive state and the second on-off valve is in off state,
And absolute value corresponding to the difference of environment temperature and the inlet temperature of heat exchanger determines the first on-off less than the five fingers fixed number value
Valve starting failure；Based on outdoor unit operation in a heating mode, the first on-off valve is in off state and the second on-off valve is in
On state, and absolute value corresponding to the difference of the middle portion temperature of environment temperature and heat exchanger is less than the 6th specified numerical value, really
Fixed second on-off valve starting failure.
In the technical scheme, the first on-off valve and the second on-off valve respectively with the first refrigerant tracheae and the first refrigerant tracheae
Be connected, due to the first refrigerant tracheae atmospheric pressure value less than the second refrigerant tracheae atmospheric pressure value, when the first on-off valve and
When two on-off valves are fail to open, since the atmospheric pressure value in the first refrigerant tracheae and the first refrigerant tracheae is different, refrigerant flows to room
The position of interior machine heat exchanger is also different, therefore, in the decision process whether the first on-off valve and the second on-off valve start failure,
The inlet temperature of heat exchanger and the middle portion temperature of heat exchanger are chosen, respectively to improve the confidence level for starting failure and determining.
In any of the above-described technical solution, further, further includes: determine on-off valve group it is in the conductive state or cut-off shape
Duration under state is greater than specified duration.
In the technical scheme, the duration that on state or off state is maintained by limiting on-off valve group, which is greater than, specifies
Duration, to reduce when on-off valve group switches open state, air conditioner is in influence of the initial operating state to fault detection, subtracts
Few erroneous judgement.
In any of the above-described technical solution, further, further includes: the fault message of output on-off valve group.
In the technical scheme, by exporting the fault message of on-off valve group, so that staff in time carries out failure
Processing, to improve air conditioner reliability of operation.
In the third aspect of the invention, propose that a kind of air conditioner includes: outdoor unit；At least one indoor unit；It is such as above-mentioned
The detection components for air conditioner of any one.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 shows the schematic block diagram of the detection components for air conditioner in the present invention；
Fig. 2 shows the signals of the process of the control method of the detection components for air conditioner in one embodiment of the invention
Figure；
The process that Fig. 3 shows the control method of the detection components for air conditioner in another embodiment of the present invention is shown
It is intended to；
The process that Fig. 4 shows the control method of the detection components for air conditioner in further embodiment of the present invention is shown
It is intended to；
The process that Fig. 5 shows the control method of the detection components for air conditioner in another embodiment of the invention is shown
It is intended to；
Fig. 6 shows the schematic diagram of the air conditioner in the present invention；
Fig. 7 shows the schematic diagram of the indoor unit in the present invention；
Fig. 8 shows the flow diagram of the fault detection of first on-off valve of one embodiment of the present of invention；
Fig. 9 shows the flow diagram of the fault detection of the second on-off valve of another embodiment of the present invention.
Wherein, the appended drawing reference in Fig. 6 and Fig. 7 and the corresponding relationship between component names are as follows:
1 air conditioner, 12 outdoor units, 122 second throttling devices, the heat exchanger of 124 outdoor units, 126 first four-way valves, 128
Second four-way valve, 130 compressors, 132 low-pressure liquid storing tanks, 134 oil eliminators, 136 high pressure sensors, 138 low pressure sensors, 14
Indoor unit, the heat exchanger of 142 indoor units, 144 first throttling devices, 146 blowers, 16 detection components, 162 first on-off valves, 164
Second on-off valve.
Specific embodiment
It is with reference to the accompanying drawing and specific real in order to be more clearly understood that aforementioned aspect of the present invention, feature and advantage
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, implementation of the invention
Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
Embodiment one
As shown in Figure 1, air conditioner includes outdoor unit, at least one indoor unit and the detection components 100 for air conditioner,
In, the detection components 100 for air conditioner include: at least one set of on-off valve group 102, and indoor unit and on-off valve group 102 1 are a pair of
It answers；The first end of on-off valve group 102 is connected with the refrigerant tracheae of outdoor unit, the second end of on-off valve group 102 and indoor unit
The first end of heat exchanger is connected, and the second end of heat exchanger is connected with the liquid pipe of outdoor unit；Control device 104, control device
104 on-off valve groups 102 are connected, for according to the environment temperature in space where the open and-shut mode of on-off valve group 102, indoor unit and
The temperature of heat exchanger determine on-off valve group 102 whether failure.
It specifically, further include at least two temperature measuring equipments 106, at least two thermometrics for the detection components of air conditioner 100
One in device 106 environment temperature for space where obtaining indoor unit, another at least two temperature measuring equipments 106
For obtaining the temperature of heat exchanger, wherein the temperature of heat exchanger includes: the inlet temperature of heat exchanger and/or the middle part of heat exchanger
Temperature；Control device 104 is according to the inlet temperature of heat exchanger and/or middle portion temperature, environment temperature and the on-off valve group of heat exchanger
102 open and-shut mode determine on-off valve group 102 whether failure.
Optionally, the quantity of outdoor unit can be multiple, be realized by controlling the operating status of more outdoor units respectively
Outdoor unit at whole control.
Optionally, control device is connected with outdoor unit, for determining the operational mode of outdoor unit, wherein operational mode
It may include refrigeration mode, heating mode, dehumidification mode etc..
Specifically, for the detection components of air conditioner 100 further include: suggestion device 108, suggestion device 108 and control fill
Set 104 to be connected, control device 104 is also used to: control suggestion device 108 exports the fault message of on-off valve group 102.
In this embodiment, in the process of running, such as operation is in cooling mode or under heating mode, refrigerant meeting for air conditioner
It is flowed between the refrigerant tracheae of outdoor unit, the heat exchanger of indoor unit, on-off valve group 102 and the liquid pipe of outdoor unit, it is cold to realize
The circulation of matchmaker.The case where on-off valve group 102 breaks down is mostly to leak, and under serious situation, open and close exception occurs, cold
In matchmaker's flow process heat exchanger can be carried out with the medium in the space where indoor unit it is cold and hot exchange, therefore, known specified logical
In the case where the open and-shut mode of disconnected valve group 102, pass through environment temperature in the space where detection indoor unit and heat exchanger
Temperature can judge whether on-off valve group 102 breaks down, to determine failure in time and to be handled, so that it is guaranteed that air-conditioning
The reliability service of device.
Specifically, under the refrigeration mode of air conditioner operation, high-pressure gaseous refrigerant is after the heat exchange of the heat exchanger of outdoor unit, successively
Outdoor unit is flowed back to by the refrigerant tracheae of the liquid pipe of outdoor unit, the heat exchanger of indoor unit, on-off valve group 102 and outdoor unit, with reality
Refrigerant circulation under existing refrigeration mode；Under the heating mode of air conditioner operation, high-pressure gaseous refrigerant is passed through through the cold of outdoor unit
Medium gas pipe, on-off valve group 102, the liquid pipe of the heat exchanger of indoor unit and outdoor unit flow back to outdoor unit, specifically flow back into outdoor unit
Heat exchanger, finally flow back into compressor, to realize the refrigerant circulation under heating mode.
Wherein, it is obtained due at least two temperature measuring equipments 106 of environment temperature and the temperature setting of heat exchanger,
Detection components 100 for air conditioner can execute automatic detection to on-off valve group 102.
It is alternatively possible to which temperature measuring equipment 106 to be directly arranged in entry position and the medium position of heat exchanger, temperature measuring equipment
106 also can be set the other positions in air conditioner, the entry position of the detection heat exchanger with directive property and medium position.
Optionally, the blower return air inlet of the setting of temperature measuring equipment 106 machine indoors, to detect environment temperature, by by thermometric
The blower return air inlet of machine indoors is arranged in device 106, convenient for hiding for temperature measuring equipment 106, improves the beauty of air conditioner.
Embodiment two
In example 1, on-off valve group includes the first on-off valve and the second on-off valve, and refrigerant tracheae includes: the first refrigerant
Tracheae and the second refrigerant tracheae, wherein the first end of the first on-off valve is connected with the first refrigerant tracheae, and the of the first on-off valve
Two ends are connected with the first end of heat exchanger；The first end of second on-off valve is connected with the second refrigerant tracheae, the second on-off valve
Second end be connected with the first end of heat exchanger, wherein gas of the atmospheric pressure value of the first refrigerant tracheae less than the second refrigerant tracheae
Pressure value.
In this embodiment, on-off valve group includes the first on-off valve and the second on-off valve, and the first on-off valve and second leads to
Disconnected valve with the first refrigerant tracheae of outdoor unit and the second refrigerant tracheae, is cut respectively by the first on-off valve of control and the second on-off valve
On state is changed, the environment temperature in space and the temperature of heat exchanger determine the first on-off valve and the second on-off in conjunction with where indoor unit
Valve whether failure, to realize the accurate determination of on-off valve.
Embodiment three
As shown in Fig. 2, the control method of the detection components for air conditioner includes:
S102, according to the environment temperature in space and the heat exchanger of indoor unit where the open and-shut mode of on-off valve group, indoor unit
Temperature determine on-off valve group whether failure.
In this embodiment, in the process of running, such as operation is in cooling mode or under heating mode, refrigerant meeting for air conditioner
It is flowed between the refrigerant tracheae of outdoor unit, the heat exchanger of indoor unit, on-off valve group and the liquid pipe of outdoor unit, to realize refrigerant
Circulation.The case where on-off valve group breaks down is mostly to leak, and under serious situation, open and close exception occurs, flows in refrigerant
In the process heat exchanger can with the medium in the space where indoor unit carry out it is cold and hot exchange, therefore, in known specified on-off valve group
Open and-shut mode in the case where, can be sentenced by environment temperature in the space where detection indoor unit and the temperature of heat exchanger
Whether disconnected on-off valve group out breaks down, to determine failure in time and to be handled, so that it is guaranteed that the reliability service of air conditioner.
Specifically, under the refrigeration mode of air conditioner operation, high-pressure gaseous refrigerant is after the heat exchange of the heat exchanger of outdoor unit, successively
Outdoor unit is flowed back to by the refrigerant tracheae of the liquid pipe of outdoor unit, the heat exchanger of indoor unit, on-off valve group and outdoor unit, to realize system
Refrigerant circulation under cold mode；Under the heating mode of air conditioner operation, high-pressure gaseous refrigerant passes through the refrigerant gas by outdoor unit
The liquid pipe of pipe, on-off valve group, the heat exchanger of indoor unit and outdoor unit flows back to outdoor unit, specifically flows back into the heat exchange of outdoor unit
Device is finally flow back into compressor, to realize the refrigerant circulation under heating mode.
Example IV
As shown in figure 3, the control method of the detection components for air conditioner includes:
S202 meets the first preset condition based on air conditioner, and the environment temperature in space where indoor unit is not equal to heat exchange
The temperature of device determines that on-off valve group leaks.
Wherein, the first preset condition includes: that outdoor unit is run in cooling or heating mode, and on-off valve group is in
Off state.
In this embodiment, when outdoor unit operation in cooling or heating mode, i.e., outdoor unit is in the process of running
The refrigerant of output will affect the temperature of the heat exchanger of indoor unit, therefore, when on-off valve group is in off state, on-off valve group meeting
Outdoor unit is blocked to exchange with the refrigerant between the heat exchanger of indoor unit, specifically, when in refrigeration mode, under off state
On-off valve group the refrigerant in the heat exchanger of indoor unit can be blocked to flow back to outdoor unit by the refrigerant tracheae of outdoor unit, and when making
Under heat pattern, on-off valve group can block the refrigerant of outdoor unit to flow into the heat exchanger of indoor unit, therefore, as long as detecting indoor unit
When the environment temperature in place space is not equal to the temperature of heat exchanger, so that it may determine that on-off valve group is not completely in cut-off shape
State, i.e. on-off valve group are in leak condition, need to only obtain the temperature and on-off valve of environment temperature and heat exchanger in the process
Judgement can be realized in group open and-shut mode, and the parameter of acquisition is few, and the logic of judgement is simple.
Embodiment five
As shown in figure 4, the control method of the detection components for air conditioner includes:
S302, based on air conditioner meet the first preset condition, and the difference of environment temperature and the temperature of heat exchanger be greater than or
Equal to the second specified numerical value, determine that on-off valve group leaks.
Wherein, the first preset condition includes: that outdoor unit is run in cooling or heating mode, and on-off valve group is in
Off state.
In this embodiment, only determine that the difference of the temperature of environment temperature and heat exchanger is greater than or equal to the second specified number
Value just assert the leakage of on-off valve group, can be to avoid the erroneous judgement occurred caused by deviation because of temperature detection.
Optionally, environment temperature absolute value corresponding with the difference of the temperature of heat exchanger is greater than or equal to the second specified number
Value determines that on-off valve group leaks.
Optionally, the value range of the second specified numerical value is greater than 0 DEG C and is less than or equal to 3 DEG C.
Embodiment six
As shown in figure 5, the control method of the detection components for air conditioner includes:
S402 meets the first preset condition based on air conditioner, and the environment temperature in space where indoor unit is not equal to heat exchange
The temperature of device determines that on-off valve group leaks；
S404 meets second preset condition based on air conditioner, and the environment temperature and heat exchanger in space where indoor unit
Absolute value corresponding to the difference of temperature determines the starting failure of on-off valve group less than the first specified numerical value.
Wherein, the first preset condition includes: that outdoor unit is run in cooling or heating mode, and on-off valve group is in
Off state；Second preset condition includes: that outdoor unit is run in cooling or heating mode, and on-off valve group is on
State.
In this embodiment, when outdoor unit operation in cooling or heating mode, i.e., outdoor unit is in the process of running
The refrigerant of output will affect the temperature of the heat exchanger of indoor unit, therefore, when on-off valve group is in off state, on-off valve group meeting
Outdoor unit is blocked to exchange with the refrigerant between the heat exchanger of indoor unit, therefore, as long as detecting the environment in space where indoor unit
When temperature is not equal to the temperature of heat exchanger, so that it may determine that on-off valve group is not completely in off state, i.e. on-off valve group
In leak condition, the temperature and on-off valve group open and-shut mode of environment temperature and heat exchanger need to be only obtained in the process again
It realizes and determines, the parameter of acquisition is few, and the logic of judgement is simple.
Wherein it is determined that on-off valve group whether failure the step of, further include, air conditioner meet the second preset condition under, room
Absolute value corresponding to the difference of the temperature of the environment temperature and heat exchanger in space where interior machine whether less than the first specified numerical value,
If being less than, it is to be appreciated that refrigerant flows into the heat exchanger of indoor unit not over on-off valve group, i.e., on-off valve group is opened
Failure, and on-off valve group starting failure deterministic process be based on whether leakage judgement after carry out, therefore it may only be necessary to
The open and-shut mode for switching on-off valve group and the temperature for reacquiring environment temperature and heat exchanger can determine, therefore, obtain and
The parameter of control is less, and the logic of judgement is simple, it is easy to accomplish.
Wherein, the first specified numerical value is more than or equal to 0 DEG C and is less than or equal to 3 DEG C.
Optionally, the first preset condition is met based on air conditioner, and the environment temperature in space where indoor unit is not equal to changing
The temperature of hot device determines the step of on-off valve group leaks, specifically includes: meeting the first preset condition, and environment based on air conditioner
The difference of temperature and the temperature of heat exchanger is greater than or equal to the second specified numerical value, determines that on-off valve group leaks.
In this embodiment, only determine that the difference of the temperature of environment temperature and heat exchanger is greater than or equal to the second specified number
Value just assert the leakage of on-off valve group, can be to avoid the erroneous judgement occurred caused by deviation because of temperature detection.
Embodiment seven
In any of the above-described embodiment, the control method of the detection components for air conditioner further include: determine on-off valve group
Duration under in the conductive state or off state is greater than specified duration.
In this embodiment, when maintaining the duration of on state or off state greater than specifying by limiting on-off valve group
Long, to reduce when on-off valve group switches open state, air conditioner is in influence of the initial operating state to fault detection, reduces
Erroneous judgement.
Wherein, specified duration can be set according to the operation duration of outdoor unit and indoor unit, and prow opens indoors
When dynamic, specified duration be can choose less than or equal to 5 minutes.
Wherein, it specifies duration related to operational mode, runs specified duration in cooling mode greater than operating in heating
Specified duration under mode is specifically heat exchange of the refrigerant from indoor unit what is blocked due to on-off valve group in cooling mode
Device flows to outdoor unit, therefore, is greater than specified duration by duration of the control under on-off valve group is in the conductive state or off state
To ensure that there is storage section refrigerant time enough and environment to carry out heat exchange in machine heat exchanger indoors, to ensure that failure is examined
The accuracy of survey.
Embodiment eight
In any of the above-described embodiment, the control method of the detection components for air conditioner further include: output on-off valve group
Fault message.
In this embodiment, by export on-off valve group fault message, so as to staff in time to failure at
Reason, to improve air conditioner reliability of operation.
Embodiment nine
In any of the above-described embodiment, on-off valve group includes the first on-off valve and the second on-off valve, the temperature packet of heat exchanger
Include: the inlet temperature of heat exchanger and the middle portion temperature of heat exchanger, the second specified numerical value include that third specifies numerical value and the 4th to specify
Numerical value；Meet the first preset condition based on air conditioner, and the difference of environment temperature and the temperature of heat exchanger is greater than or equal to second
Specified numerical value, specifically includes the step of determining the leakage of on-off valve group: based on outdoor unit operation in cooling mode, the first on-off
Valve and the second on-off valve are in off state, and the difference of environment temperature and the inlet temperature of heat exchanger refers to more than or equal to third
Fixed number value determines that the first on-off valve leaks；Based on outdoor unit operation in a heating mode, at the first on-off valve and the first on-off valve
In off state, and the difference of the middle portion temperature of heat exchanger and environment temperature is greater than or equal to the 4th specified numerical value, determines second
On-off valve leakage.
In this embodiment, the first on-off valve and the second on-off valve respectively with the first refrigerant tracheae and the first refrigerant tracheae phase
Connection, due to the first refrigerant tracheae atmospheric pressure value less than the second refrigerant tracheae atmospheric pressure value, when the first on-off valve and second
When on-off valve leaks, since the atmospheric pressure value in the first refrigerant tracheae and the first refrigerant tracheae is different, refrigerant flows to interior
The position of machine heat exchanger is also different, therefore, in the decision process whether the first on-off valve and the second on-off valve leak, selects respectively
The inlet temperature of heat exchanger and the middle portion temperature of heat exchanger are taken, to improve the confidence level of leak judgement.
Embodiment ten
In any of the above-described embodiment, on-off valve group includes the first on-off valve and the second on-off valve, the temperature packet of heat exchanger
Include: the inlet temperature of heat exchanger and the middle portion temperature of heat exchanger, the first specified numerical value include that the five fingers fixed number value and the 6th are specified
Numerical value；Meet the second preset condition based on air conditioner, and the difference of the temperature of the environment temperature and heat exchanger in space where indoor unit
The corresponding absolute value of value determines the step of starting of on-off valve group fails, specifically includes: based on outdoor less than the first specified numerical value
Machine operation is in cooling mode, the first on-off valve is in the conductive state and the second on-off valve is in off state, and environment temperature
Absolute value corresponding to difference with the inlet temperature of heat exchanger determines that the starting of the first on-off valve is lost less than the five fingers fixed number value
It loses；Based on outdoor unit operation in a heating mode, the first on-off valve is in off state and the second on-off valve is in the conductive state,
And absolute value corresponding to the difference of the middle portion temperature of environment temperature and heat exchanger determines the second on-off less than the 6th specified numerical value
Valve starting failure.
In this embodiment, the first on-off valve and the second on-off valve respectively with the first refrigerant tracheae and the first refrigerant tracheae phase
Connection, due to the first refrigerant tracheae atmospheric pressure value less than the second refrigerant tracheae atmospheric pressure value, when the first on-off valve and second
When on-off valve is fail to open, since the atmospheric pressure value in the first refrigerant tracheae and the first refrigerant tracheae is different, refrigerant flows to interior
The position of machine heat exchanger is also different, therefore, in the decision process whether the first on-off valve and the second on-off valve start failure, point
Not Xuan Qu the inlet temperature of heat exchanger and the middle portion temperature of heat exchanger, with improve start failure determine confidence level.
Embodiment 11
In one embodiment of the invention, as shown in Figure 6 and Figure 7, a kind of air conditioner 1, including outdoor unit 12 are proposed；
At least one indoor unit 14；Such as the detection components 16 for air conditioner 1 in above-mentioned any embodiment.
Specifically, indoor unit 14 further includes first throttling device 144, first throttling device 144 setting machine 14 indoors
Between heat exchanger 142 and the liquid pipe of outdoor unit 12, when running the above embodiment of the present invention, first throttling device 144 is in
On state.
Optionally, indoor unit 14 further includes blower 146, wherein one at least two temperature measuring equipments is arranged in blower
146 return air inlet position D, when running the above embodiment of the present invention, control blower 146 rotate, so as to return air inlet position with
Environment temperature is same or similar, to improve the confidence level of breakdown judge.Temperature measuring equipment is additionally arranged at the heat exchanger 142 of indoor unit 14
Entrance A, indoor unit 14 heat exchanger 142 middle part B and indoor unit 14 heat exchanger 142 outlet C, to obtain indoor unit 14
Heat exchanger 142 temperature, or determine according to the temperature of the temperature of entrance A and outlet C the temperature of middle part B.
Outdoor unit 12 further include: second throttling device 122, the heat exchanger 124 of outdoor unit 12, the first four-way valve 126, second
Four-way valve 128, compressor 130, specifically, one section of second throttling device 122 passes through the liquid pipe and first throttle of outdoor unit 12
Device 144 is connected, and one end of the heat exchanger 124 of the other end and outdoor unit 12 of second throttling device 122 is connected, outdoor unit
The other end of 12 heat exchanger 124 is connected with the first end of the first four-way valve 126, the second end and pressure of the first four-way valve 126
The first end of contracting machine 130 is connected, and the second end of compressor 130 is connected with low-pressure liquid storing tank 132, low-pressure liquid storing tank 132
Output end is connected by the first refrigerant tracheae with the first on-off valve 162, and the third end of the first four-way valve 126 is connected to the 4th end
It is connected afterwards with the second end of the second four-way valve 128 and third end, and is connected via check-valves with the first refrigerant tracheae；Second
The first end of four-way valve 128 is connected with the first end of compressor 130, and the 4th end of the second four-way valve 128 passes through the second refrigerant
Tracheae is connected with the second on-off valve 164, adjusts outdoor unit 12 by the first four-way valve 126 of control and the second four-way valve 128
Operational mode.
Specifically, the first end of compressor 130 passes through oil eliminator 134 and the first four-way valve 126 and the second four-way valve 128
It is connected.
Optionally, outdoor unit 12 further include: high pressure sensor 136 and low pressure sensor 138, wherein high pressure sensor 136
It is arranged on the pipeline between compressor 130 and oil eliminator 134, the pressure value of refrigerant is exported for detecting compressor 130, it is low
Pressure sensor 138 is arranged on the pipeline of the output end of low-pressure liquid storing tank 132, for detecting the atmospheric pressure value of the first refrigerant tracheae.
Wherein, in the case that the quantity of machine 14 is multiple indoors, multiple on-off valve groups form coolant distribution device, and that
This is controlled independently of each other, and each on-off valve group includes the first on-off valve 162 and the second on-off valve 164, the control of the first on-off valve 162
First refrigerant tracheae is connected with 14 heat exchanger of indoor unit, and the second on-off valve 164 controls the second refrigerant tracheae and indoor unit 14 changes
Hot device is connected.Wherein, the atmospheric pressure value in the first refrigerant tracheae less than the second refrigerant tracheae atmospheric pressure value, when indoor unit 14 run
In refrigeration mode, the conducting of the first on-off valve 162, the cut-off of the second on-off valve 164, when indoor unit 14 operates in heating mode,
The cut-off of first on-off valve 162, the conducting of the second on-off valve 164, therefore, multiple indoor units 14 can be by controlling corresponding on-off valve
Group achievement unit point operates in refrigeration mode, partially runs under positive heating mode.
As shown in figure 8, the fault detection of the first on-off valve specifically includes:
S502, the first on-off valve and the second on-off valve are closed；
S504, after judging t1min, T0-Tin >=Δ T1, judging result is yes, execution S506；Otherwise, S508 is executed；
S506, the first on-off valve " leakage " failure numeral method A1；
S508, the first on-off valve is opened, the second on-off valve is closed；
S510, after judging t2min, | T0-Tin | < Δ T2, judging result are yes, execution S512, otherwise, execution S514；
S512, the first on-off valve " opening failure " failure, numeral method A2；
S514, the first on-off valve fault-free, numeral method 00.
First control outdoor unit operate under pure refrigeration mode (when the quantity of outdoor unit be it is multiple when, multiple outdoor units are same
When operate in refrigeration mode), to the first aperture, blower slowly runs the aperture regulation of first throttling device, determines the first on-off
The duration that valve and the second on-off valve are in off state is greater than the first duration t1, obtains the inlet temperature Tin and environment of heat exchanger
Temperature T0 determines that the difference of the inlet temperature Tin of environment temperature T0 and heat exchanger is greater than Δ T1, determines corresponding first on-off of interior machine
Valve leakage, and the information of the first on-off valve leakage is exported, numeral method A1 is controlled, fault-free information, such as 00 are otherwise exported.
Secondly, the first on-off valve of control is opened, and the second on-off valve is closed after determining the leakage of the first on-off valve, the is determined
The duration that one on-off valve is opened, the second on-off valve is closed is greater than the second duration t2, obtains the inlet temperature Tin and environment of heat exchanger
Temperature T0 is determined | T0-Tin | < Δ T2 determines that the first on-off valve blocks substantially or coil energization is unsmooth, exports the first on-off
Valve opens the fault message of failure, and shows the information such as A2 by numerical-control pipe.
As shown in figure 9, the fault detection of the second on-off valve specifically includes:
S602, the first on-off valve and the second on-off valve are closed；
S604, after judging t3min, Tm-T0 >=Δ T3, judging result is yes, execution S606；Otherwise, S608 is executed；
S606, the second on-off valve " leakage " failure numeral method B1；
S608, the first on-off valve is closed, the second on-off valve is opened；
S610, after judging t4min, | Tm-T0 | < Δ T4, judging result are yes, execution S612, otherwise, execution S614；
S612, the second on-off valve " opening failure " failure, numeral method B2；
S614, the second on-off valve fault-free, numeral method 00.
First control outdoor unit operate under pure heating mode (when the quantity of outdoor unit be it is multiple when, multiple outdoor units are same
When operate in heating mode), the aperture regulation of first throttling device to the second aperture, wherein the second aperture and the first aperture can
With identical, can also be different, blower slowly runs, determine the first on-off valve and the second on-off valve be in off state when grow up
In third duration t3, the middle portion temperature Tm and environment temperature T0 of heat exchanger are obtained, determines the middle portion temperature Tm and environment of heat exchanger
The difference of temperature T0 is greater than Δ T3, determines the corresponding second on-off valve leakage of interior machine, and export the information of the second on-off valve leakage, controls
Otherwise numeral method B1 processed exports fault-free information, such as 00.
Secondly, the first on-off valve of control is closed, and the second on-off valve is opened after determining the leakage of the second on-off valve, the is determined
The duration that one on-off valve is closed, the second on-off valve is opened is greater than the 4th duration t4, obtains the middle portion temperature Tm and environment of heat exchanger
Temperature T0 is determined | Tm-T0 | < Δ T4 determines that the second on-off valve blocks substantially or coil energization is unsmooth, exports the second on-off
Valve opens the fault message of failure, and shows the information such as B2 by numerical-control pipe.
In this embodiment, when determining indoor unit output refrigerating capacity or heating capacity deficiency, by running above-described embodiment
The fault detection to on-off valve may be implemented, to safeguard in time to the on-off valve there are failure.
In the description of the present invention, term " multiple " then refers to two or more, unless otherwise restricted clearly, term
The orientation or positional relationship of the instructions such as "upper", "lower" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of retouching
It states the present invention and simplifies description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific
Orientation construction and operation, therefore be not considered as limiting the invention；Term " connection ", " installation ", " fixation " etc. should all
It is interpreted broadly, for example, " connection " may be fixed connection or may be dismantle connection, or integral connection；It can be straight
Connect it is connected, can also be indirectly connected through an intermediary.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the description of the present invention, the description meaning of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Refer to that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present invention, schematic expression of the above terms are not necessarily referring to identical embodiment or example.And
And the particular features, structures, materials, or characteristics of description can be in any one or more of the embodiments or examples with suitable
Mode combines.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (13)
1. a kind of detection components for air conditioner, which is characterized in that the air conditioner includes: outdoor unit and at least one is indoor
Machine, wherein the detection components for air conditioner include:
At least one set of on-off valve group, the indoor unit and the on-off valve group correspond；
The first end of the on-off valve group is connected with the refrigerant tracheae of the outdoor unit, the second end of the on-off valve group and institute
The first end for stating the heat exchanger of indoor unit is connected, and the second end of the heat exchanger is connected with the liquid pipe of the outdoor unit；
Control device, the control device are connected with the on-off valve group, for according to the open and-shut mode of the on-off valve group,
The environment temperature in space where the indoor unit and the temperature of the heat exchanger determine the on-off valve group whether failure.
2. the detection components according to claim 1 for air conditioner, which is characterized in that
The detection components for air conditioner further include at least two temperature measuring equipments, one at least two temperature measuring equipment
A environment temperature for space where obtaining the indoor unit, another at least two temperature measuring equipment is for obtaining
The temperature of the heat exchanger, wherein the temperature of the heat exchanger include: heat exchanger inlet temperature and/or the heat exchanger
Middle portion temperature；
The control device is according to the inlet temperature of the heat exchanger and/or middle portion temperature, the environment temperature of the heat exchanger
Degree and the on-off valve group open and-shut mode determine the on-off valve group whether failure.
3. the detection components according to claim 1 or 2 for air conditioner, which is characterized in that
The on-off valve group includes the first on-off valve and the second on-off valve, and the refrigerant tracheae includes: the first refrigerant tracheae and the
Two refrigerant tracheaes, wherein the first end of the first on-off valve is connected with the first refrigerant tracheae, the second end of the first on-off valve and institute
The first end for stating heat exchanger is connected；The first end of second on-off valve is connected with the second refrigerant tracheae, and the of the second on-off valve
Two ends are connected with the first end of the heat exchanger, wherein the atmospheric pressure value of the first refrigerant tracheae is less than second refrigerant
The atmospheric pressure value of tracheae.
4. the detection components according to claim 3 for air conditioner, which is characterized in that
The detection components for air conditioner further include: suggestion device, the suggestion device are connected with the control device,
The control device is also used to:
Control the fault message that the suggestion device exports the on-off valve group.
5. a kind of control method of the detection components for air conditioner, for being used for according to any one of claims 1 to 4
The detection components of air conditioner characterized by comprising
According to the temperature of the heat exchanger of the environment temperature and indoor unit in space where the open and-shut mode of on-off valve group, indoor unit
Determine the on-off valve group whether failure.
6. the control method of the detection components according to claim 5 for air conditioner, which is characterized in that the basis is logical
The temperature of the heat exchanger of the open and-shut mode of disconnected valve group, the environment temperature in indoor unit place space and the indoor unit determines described logical
Disconnected valve group whether failure the step of, specifically include:
Meet the first preset condition based on the air conditioner, and the environment temperature in space where the indoor unit is changed not equal to described
The temperature of hot device determines the on-off valve group leakage；
Wherein, first preset condition include: outdoor unit operation in cooling or heating mode, and the on-off valve group
In off state.
7. the control method of the detection components according to claim 5 for air conditioner, which is characterized in that the basis is logical
The temperature of the heat exchanger of the open and-shut mode of disconnected valve group, the environment temperature in indoor unit place space and the indoor unit determines described logical
Disconnected valve group whether failure the step of, further includes:
Meet the second preset condition, and the environment temperature in space and the heat exchanger where the indoor unit based on the air conditioner
Temperature difference corresponding to absolute value less than the first specified numerical value, determine the on-off valve group starting failure；
Wherein, second preset condition include: outdoor unit operation in cooling or heating mode, and the on-off valve group
It is in the conductive state.
8. the control method of the detection components according to claim 6 for air conditioner, which is characterized in that described to be based on institute
It states air conditioner and meets the first preset condition, and the environment temperature in space where the indoor unit is not equal to the temperature of the heat exchanger
Degree determines the step of on-off valve group leaks, specifically includes:
Meet the first preset condition based on the air conditioner, and the difference of the environment temperature and the temperature of the heat exchanger is greater than
Or it is equal to the second specified numerical value, determine the on-off valve group leakage.
9. the control method of the detection components according to claim 8 for air conditioner, which is characterized in that the on-off valve
Group includes the first on-off valve and the second on-off valve, and the temperature of the heat exchanger includes: the inlet temperature and heat exchanger of heat exchanger
Middle portion temperature, the second specified numerical value include that third specifies numerical value and the 4th specified numerical value；
It is described that first preset condition, and the difference of the environment temperature and the temperature of the heat exchanger are met based on the air conditioner
More than or equal to the second specified numerical value, determines the step of on-off valve group leaks, specifically includes:
Based on outdoor unit operation in cooling mode, the first on-off valve and the second on-off valve be in off state, and it is described
The difference of environment temperature and the inlet temperature of the heat exchanger is greater than or equal to the third and specifies numerical value, determines that described first is logical
Disconnected valve leakage；
Based on outdoor unit operation in a heating mode, first on-off valve and first on-off valve be in cut-off shape
State, and the difference of the middle portion temperature of the heat exchanger and the environment temperature is greater than or equal to the 4th specified numerical value, determines
The second on-off valve leakage.
10. the control method of the detection components according to claim 7 for air conditioner, which is characterized in that the on-off
Valve group includes the first on-off valve and the second on-off valve, and the temperature of the heat exchanger includes: the inlet temperature and heat exchanger of heat exchanger
Middle portion temperature, the first specified numerical value include the five fingers fixed number value and the 6th specified numerical value；
It is described that second preset condition is met based on the air conditioner, and the environment temperature in space is changed with described where the indoor unit
Absolute value corresponding to the difference of the temperature of hot device determines the step of the on-off valve group starting failure less than the first specified numerical value
Suddenly, it specifically includes:
Based on the outdoor unit operation in cooling mode, first on-off valve the second on-off valve in the conductive state and described
In off state, and absolute value corresponding to the difference of the environment temperature and the inlet temperature of the heat exchanger is less than described
The five fingers fixed number value determines the first on-off valve starting failure；
Based on the outdoor unit operation in a heating mode, first on-off valve be in off state and second on-off valve
It is in the conductive state, and absolute value corresponding to the difference of the middle portion temperature of the environment temperature and the heat exchanger is less than described
6th specified numerical value determines the second on-off valve starting failure.
11. the control method according to any one of claim 5 to 10 for the detection components of air conditioner, feature exist
In, further includes:
Determine that the duration under the on-off valve group is in the conductive state or off state is greater than specified duration.
12. the control method according to any one of claim 5 to 10 for the detection components of air conditioner, feature exist
In, further includes:
Export the fault message of the on-off valve group.
13. a kind of air conditioner, which is characterized in that the air conditioner includes:
Outdoor unit；
At least one indoor unit；
It is used for the detection components of air conditioner according to any one of claims 1 to 4.
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| CN111425986A (en) * | 2020-04-07 | 2020-07-17 | 广东美的暖通设备有限公司 | Indoor unit of air conditioner, control method, air conditioner and readable storage medium |
| CN111595003A (en) * | 2020-05-29 | 2020-08-28 | 广东美的暖通设备有限公司 | Air conditioner detection method and device and air conditioner |
| CN115614918A (en) * | 2022-09-27 | 2023-01-17 | 宁波奥克斯电气股份有限公司 | Refrigerant shortage detection method and device for air conditioner and air conditioner |
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| CN111595003B (en) * | 2020-05-29 | 2021-09-07 | 广东美的暖通设备有限公司 | Air conditioner detection method and device and air conditioner |
| CN115614918A (en) * | 2022-09-27 | 2023-01-17 | 宁波奥克斯电气股份有限公司 | Refrigerant shortage detection method and device for air conditioner and air conditioner |
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