CN110410968A - Air conditioner and its control method - Google Patents
Air conditioner and its control method Download PDFInfo
- Publication number
- CN110410968A CN110410968A CN201910599485.3A CN201910599485A CN110410968A CN 110410968 A CN110410968 A CN 110410968A CN 201910599485 A CN201910599485 A CN 201910599485A CN 110410968 A CN110410968 A CN 110410968A
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- Prior art keywords
- temperature
- chassis
- control method
- air conditioner
- heating device
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
-
- 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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
-
- 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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid 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)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to air-conditioning technique fields, and in particular to a kind of air conditioner and its control method.The present invention provides a kind of control method of air conditioner, air conditioner includes indoor unit and outdoor unit, and the chassis of outdoor unit is provided with heating device and the temperature-detecting device for detecting chassis temperature；Control method includes: to obtain environment temperature locating for outdoor unit in the case of air conditioner is in heating condition；In the case of environment temperature meets and imposes a condition, chassis temperature is obtained；According at least to the open/close states of chassis temperature control heating device.Control method of the invention introduces bottom plate of outdoor unit temperature on the basis of original environment temperature determines, in the case of environment temperature meets and imposes a condition, realize that more accurate chassis frosting determines to realize more accurately chassis defrosting control by bottom plate of outdoor unit temperature, to under the premise of guaranteeing effectively defrosting, the invalid runing time of chassis heating device is reduced, it is energy saving.
Description
Technical field
The present invention relates to air-conditioning technique fields, and in particular to a kind of air conditioner and its control method.
Background technique
In air-conditioning in the biggish area operation in low temp area or wind and snow, the condenser outer surface institute condensed water of outdoor unit
Stream can drop on bottom plate of outdoor unit, ice formation issues occur so as to cause outdoor unit of the air conditioner chassis, so that chassis can not be just
Often draining.Especially after outdoor unit heat exchanger defrosting, frost melts the water droplet formed and remains on chassis, can also aggravate the knot on chassis
Ice-like condition.
The Defrost mode about chassis is mainly provided with electric heating wire on chassis in the prior art, according to the ring detected
Border temperature controls the opening and closing of heating wire, to realize that chassis is defrosted.Specifically, when the outdoor environment temperature value detected is lower than
At 3 DEG C, electric heating wire is opened；When the outdoor environment temperature detected is higher than 5 DEG C, electric heating wire is closed.However in many feelings
Under condition, although the outdoor environment temperature value detected be lower than 3 DEG C, chassis not frosting and electric heating wire still maintains at this time
Open state so will increase many unnecessary electric quantity consumptions.
Correspondingly, this field needs a kind of new outdoor unit of the air conditioner chassis to defrost control program to solve above-mentioned ask
Topic.
Summary of the invention
In order to solve the above problem in the prior art, i.e., existing detection method can not accurately judge the frosting on chassis
Degree and cannot achieve accurately defrosting control the problem of, on the one hand, the present invention provides a kind of control method of air conditioner, institutes
Stating air conditioner includes indoor unit and outdoor unit, and the chassis of the outdoor unit is provided with heating device and for detecting chassis temperature
Temperature-detecting device；The control method includes:
In the case of the air conditioner is in heating condition, environment temperature locating for the outdoor unit is obtained；
In the case of the environment temperature meets and imposes a condition, chassis temperature is obtained；
The open/close states of the heating device are controlled according at least to the chassis temperature.
In the optimal technical scheme of above-mentioned control method, " heating device is controlled according at least to the chassis temperature
Opening and closing " the step of specifically include:
Judge whether the chassis temperature is less than or equal to the first temperature threshold；
In the case of the chassis temperature is less than or equal to the first temperature threshold, the heating device is made to be in opening state
State.
In the optimal technical scheme of above-mentioned control method, " heating device is controlled according at least to the chassis temperature
Opening and closing " the step of specifically include:
It is more than or equal to preset time threshold and the bottom by closing to the shutdown duration being again turned in the heating device
Disk temperature is less than or equal in the case of the first temperature threshold, controls the heating device and opens.
In the optimal technical scheme of above-mentioned control method, the value range of first temperature threshold is -1 DEG C to 0 DEG C.
In the optimal technical scheme of above-mentioned control method, " heating device is controlled according at least to the chassis temperature
Opening and closing " the step of specifically include:
Judge whether the chassis temperature is more than or equal to second temperature threshold value；
In the case of the chassis temperature is more than or equal to the second temperature threshold value, it is in the heating device and closes
State；
Wherein, the second temperature threshold value is more than or equal to first temperature threshold.
In the optimal technical scheme of above-mentioned control method, the value range of the second temperature threshold value is 0 DEG C to 1 DEG C.
In the optimal technical scheme of above-mentioned control method, the control method further include:
In the case of the environment temperature is unsatisfactory for the setting condition, controls the heating device and open.
In the optimal technical scheme of above-mentioned control method, the setting condition includes: that the environment temperature is more than or equal to
Third temperature threshold.
Control method of the invention introduces bottom plate of outdoor unit temperature on the basis of original environment temperature determines, in environment temperature
In the case of degree meets setting condition, realize that more accurate chassis frosting determines by bottom plate of outdoor unit temperature, and according to
Result is determined to realize more accurately chassis defrosting control, to reduce chassis heating under the premise of guaranteeing effectively defrosting
The invalid runing time of device, and then air conditioner is avoided to generate unnecessary energy consume.
On the other hand, the present invention also provides a kind of air conditioner, the air conditioner includes controller, and the controller is used for
Execute the control method of above-mentioned air conditioner.Air conditioner of the invention has all technical effects of control method above-mentioned, herein
It repeats no more.
In the optimal technical scheme of above-mentioned air conditioner, the heating device is electric heating wire；And/or the temperature
Detection device is the temperature sensor being set on the inside of the chassis.
Detailed description of the invention
Air conditioner and its control method of the invention described with reference to the accompanying drawings.In attached drawing:
Fig. 1 is the flow diagram of the control method of air conditioner in a kind of embodiment of the invention；
Fig. 2 is the flow diagram of step S30 in a kind of embodiment of the invention.
Specific embodiment
The preferred embodiment of the present invention described with reference to the accompanying drawings.It will be apparent to a skilled person that this
A little embodiments are used only for explaining technical principle of the invention, it is not intended that limit the scope of the invention.For example, although
Describe each step of method of the invention in the application according to particular order, but these be not sequentially it is restrictive,
Under the premise of without departing from basic principle of the invention, those skilled in the art can execute the step in a different order
Suddenly.
It should be noted that in the description of the present invention, term " first ", " second " are used for description purposes only, and cannot
It is interpreted as indication or suggestion relative importance.In addition, in the description of the present invention unless specifically defined or limited otherwise, art
Language " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or
It is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be by between intermediary
It connects connected, can be the connection inside two elements.To those skilled in the art, can understand as the case may be above-mentioned
The concrete meaning of term in the present invention.
Air conditioner of the invention includes indoor unit and outdoor unit, and outdoor unit includes chassis, and chassis is provided with for defrosting
Electric heating wire and chassis temperature sensor for detecting chassis temperature.The return side of outdoor unit is provided with for collection room inner ring
The environment temperature sensor of border temperature.
Referring to Fig.1, Fig. 1 is the flow diagram of the control method of air conditioner in a kind of embodiment of the invention.Such as Fig. 1 institute
Show, the control method of the above structure based on air conditioner, air conditioner of the invention includes the following steps:
Step S10: in the case of air conditioner is in heating condition, environment temperature locating for outdoor unit is obtained.
Step S20: in the case of environment temperature meets and imposes a condition, chassis temperature is obtained.
Step S30: according at least to the open/close states of chassis temperature control heating device.
Preferably, it in step S20, imposes a condition and is more than or equal to third threshold value for environment temperature.When long by inventor
Between experimental studies have found that: it is outdoor in the case of environment temperature locating for outdoor unit is less than 0 DEG C for different type of machines
Machine chassis can generally have a degree of frosting situation.However when environment temperature is in 0 DEG C or more, the knot of bottom plate of outdoor unit
White situation is more complex, determines can there is large error to chassis frosting situation according only to environment temperature at this time, often goes out
Existing chassis has no frosting and electric heating wire the phenomenon that still maintaining open state, disappears to increase much unnecessary electricity
Consumption.Therefore the present invention is provided with chassis temperature sensor on the inside of chassis, utilizes the collected chassis temperature of chassis temperature sensor
Degree directly to judge chassis ice condition in the case of environment temperature is more than or equal to zero degree, and then controls the electric heating on chassis
The open/close states of silk.
Based on above-mentioned discovery and in view of the data and true environment temperature of the acquisition of the environment temperature sensor of air conditioner
There can be small-scale error, it is preferable that the value range of third threshold value is 0 DEG C to 1 DEG C.
Further, in the case where environment temperature is less than or equal to third threshold value, at this time since bottom plate of outdoor unit is deposited substantially
In frosting, therefore, at this time in the case where environment temperature is less than or equal to third threshold value, without considering chassis temperature, directly make electricity
Heater strip is in the open state.
It should be noted that in practical applications, the particular content of setting condition is not limited only to a kind of this above-mentioned situation, this
Field technical staff can be adjusted flexibly according to particular content of the actual application scenarios to setting condition.
As can be seen that it is of the invention on the basis of original outdoor environment temperature is as chassis frosting situation determinant factor,
For outdoor environment temperature, this more complicated situation of chassis frosting situation, the further chassis temperature that is added are passed more than zero degree
The chassis temperature that sensor obtains is as chassis frosting situation determinant factor, since chassis temperature can directly reflect the frosting on chassis
Situation, therefore can more precisely determine outdoor environment temperature at the above operating condition bottom of zero degree for chassis temperature as determinant factor
Disk frosting situation, to reduce outdoor environment temperature in the above operating condition low bottom-disc free of frost of zero degree and electric heating wire is still controlled
The case where system is opened occurs, and electric heating wire is avoided to generate useless power consumption.
Referring next to Fig. 2, Fig. 2 is the flow diagram of step S30 in a kind of embodiment of the invention.As shown in Fig. 2,
In a preferred embodiment, step S30 is specifically included:
Step S310: judge whether chassis temperature is less than or equal to the first temperature threshold:
If it is not, executing step S320；If so, executing step S330.
Step S320: remaining off electric heating wire, and return step S20.
Step S330: keep electric heating wire in the open state.
Step S340: continue to obtain the chassis temperature of outdoor unit.
Step S350: judge whether chassis temperature is more than or equal to second temperature threshold value:
If it is not, executing step S360；If so, executing step S370.
Step S360: keeping it turned on electric heating wire, and return step S340.
Step S370: it is in close state electric heating wire.
It is prolonged according to inventor experimental studies have found that, the pole of the chassis frosting of the outdoor unit of the air conditioner of different type of machines
Limit temperature is substantially in the range of 0 DEG C to -1 DEG C, that is to say, that is less than or equal to the limiting temperature in the chassis temperature of outdoor unit
In the case of, there is a degree of frosting situation on the chassis of outdoor unit.Based on this, in step s310, it is preferable that the first temperature
The value range for spending threshold value is 0 DEG C to -1 DEG C.Wherein, the specific value of the first temperature threshold can be selected according to practical situation
It selects.
It is further according to inventor experimental studies have found that: the frostless pole in the chassis of the outdoor unit of the air conditioner of different type of machines
Limit temperature is substantially at 0 DEG C to 1 DEG C, that is to say, that in the case of on chassis, temperature is more than or equal to 0 DEG C to 1 DEG C, the room of air conditioner
The chassis of outer machine is substantially at frostless state.Based on this, in step S350,0 DEG C to 1 of the value range of second temperature threshold value
℃.Wherein, the specific value of second temperature threshold value can be selected in the value range according to practical application scene.
As can be seen that the ratio of control method of the invention according to chassis temperature and the first temperature threshold, second temperature threshold value
Relatively result determines chassis frosting state to control the open/close states of electric heating wire, thus guaranteeing timely and effective defrosting effect
While, moreover it is possible to it is energy saving.
Further, in order to avoid the frequent starting of electric heating wire, on the basis of above-mentioned preferred embodiment, this hair
The bright judgement that electric heating wire is added in the decision condition of above-mentioned steps S310 by closing to the shutdown duration being again turned on, specifically
Ground, step S310 in the case of other above-mentioned steps are constant, after optimization are as follows:
Judge air conditioner whether and meanwhile meet the following conditions:
Electric heating wire is more than or equal to preset time threshold by closing to the shutdown duration being again turned on and chassis temperature is less than
Equal to the first temperature threshold:
If it is not, executing step S320；If so, executing step S330.
It is above-mentioned to have the advantage that: to be again turned on by setting preset time threshold as electric heating wire required most short
Interval time, added in the decision condition of above-mentioned steps S310 electric heating wire by close to the shutdown duration being again turned on whether
Meet the judgement of preset time threshold, to avoid electric heating wire from frequently opening and influence the service life of electric heating wire.
Although above-mentioned example be using electric heating wire as chassis defrosting heating equipment for describe it is of the invention
Control method, but it will be appreciated to those of skill in the art that the present invention answer it is without being limited thereto.In fact, being used for bottom plate of outdoor unit
The heating equipment of defrosting can also be any equipment with heating function, and those skilled in the art can be according to practical situation pair
The concrete form of heating equipment is set, to meet specific application demand.
In conclusion the present invention passes through the basis in environment temperature as the frosting situation determinant factor of bottom plate of outdoor unit
On, in the case of environment temperature is more than or equal to 0 DEG C to 1 DEG C, pass through the chassis temperature sensing being set on the inside of bottom plate of outdoor unit
The chassis temperature data of device acquisition judges the frosting situation on chassis and controls the open/close states of electric heating wire accordingly, thus real
It is now more intuitive and accurately chassis frosting situation determine and defrosting control, reduce chassis free of frost and electric heating wire still
The case where control is opened occurs, and electric heating wire is avoided to generate useless power consumption.
It will be appreciated to those of skill in the art that air conditioner is obviously gone back in addition to each components of the air conditioner of foregoing description
Including other components and structure, although not describing in present embodiment, these components should be according to the prior art
In the shape that has of air conditioner and feature understood that and these shapes and feature should not be seen as to the present invention
Limitation.For example, outdoor unit of the air conditioner can also include compressor, heat exchanger etc..
So far, it has been combined preferred embodiment shown in the drawings and describes technical solution of the present invention, still, this field
Technical staff is it is easily understood that protection scope of the present invention is expressly not limited to these specific embodiments.Without departing from this
Under the premise of the principle of invention, those skilled in the art can make equivalent change or replacement to the relevant technologies feature, these
Technical solution after change or replacement will fall within the scope of protection of the present invention.
Claims (10)
1. a kind of control method of air conditioner, which is characterized in that the air conditioner includes indoor unit and outdoor unit, the outdoor unit
Chassis be provided with heating device and the temperature-detecting device for detecting chassis temperature；
The control method includes:
In the case of the air conditioner is in heating condition, environment temperature locating for the outdoor unit is obtained；
In the case of the environment temperature meets and imposes a condition, chassis temperature is obtained；
The open/close states of the heating device are controlled according at least to the chassis temperature.
2. control method according to claim 1, which is characterized in that " add according at least to chassis temperature control is described
The step of opening and closing of thermal ", specifically includes:
Judge whether the chassis temperature is less than or equal to the first temperature threshold；
In the case of the chassis temperature is less than or equal to the first temperature threshold, keep the heating device in the open state.
3. control method according to claim 1, which is characterized in that " add according at least to chassis temperature control is described
The step of opening and closing of thermal ", specifically includes:
It is more than or equal to preset time threshold and the chassis temperature by closing to the shutdown duration being again turned in the heating device
Degree is less than or equal in the case of the first temperature threshold, controls the heating device and opens.
4. control method according to claim 2 or 3, which is characterized in that the value range of first temperature threshold be-
1 DEG C to 0 DEG C.
5. control method according to claim 2 or 3, which is characterized in that " according at least to described in chassis temperature control
The step of opening and closing of heating device ", specifically includes:
Judge whether the chassis temperature is more than or equal to second temperature threshold value；
In the case of the chassis temperature is more than or equal to the second temperature threshold value, it is in the heating device and closes shape
State；
Wherein, the second temperature threshold value is more than or equal to first temperature threshold.
6. control method according to claim 5, which is characterized in that the value range of the second temperature threshold value is 0 DEG C
To 1 DEG C.
7. control method according to claim 1, which is characterized in that the control method further include:
In the case of the environment temperature is unsatisfactory for the setting condition, controls the heating device and open.
8. control method according to claim 1 or claim 7, which is characterized in that the setting condition includes: the environment temperature
More than or equal to third temperature threshold.
9. a kind of air conditioner, which is characterized in that the air conditioner includes controller, and the controller is wanted for executing aforesaid right
Control method described in asking any one of 1 to 8.
10. air conditioner according to claim 9, which is characterized in that the heating device is electric heating wire；And/or
The temperature-detecting device is the temperature sensor being set on the inside of the chassis.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910599485.3A CN110410968A (en) | 2019-07-04 | 2019-07-04 | Air conditioner and its control method |
| PCT/CN2020/100168 WO2021000944A1 (en) | 2019-07-04 | 2020-07-03 | Air conditioner and control method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910599485.3A CN110410968A (en) | 2019-07-04 | 2019-07-04 | Air conditioner and its control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110410968A true CN110410968A (en) | 2019-11-05 |
Family
ID=68360349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910599485.3A Pending CN110410968A (en) | 2019-07-04 | 2019-07-04 | Air conditioner and its control method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110410968A (en) |
| WO (1) | WO2021000944A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110762758A (en) * | 2019-11-07 | 2020-02-07 | 宁波奥克斯电气股份有限公司 | Defrosting control method and device of air conditioner and air conditioner |
| CN111059699A (en) * | 2019-12-12 | 2020-04-24 | 珠海格力电器股份有限公司 | Electric heating belt control method and device, storage medium and air conditioner |
| CN111637592A (en) * | 2020-04-24 | 2020-09-08 | 广东志高暖通设备股份有限公司 | Chassis deicing control method and device, storage medium and air conditioner |
| WO2021000944A1 (en) * | 2019-07-04 | 2021-01-07 | 青岛海尔空调器有限总公司 | Air conditioner and control method therefor |
| CN112728722A (en) * | 2021-01-14 | 2021-04-30 | 中洁环境科技(西安)集团有限公司 | Control method and device of air conditioner and air conditioner external unit |
| WO2022257523A1 (en) * | 2021-06-07 | 2022-12-15 | 青岛海尔空调器有限总公司 | Method and apparatus for controlling air conditioner, and device |
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