CN106765872B - Control method and controller of outer fan in heating mode and air conditioner - Google Patents
Control method and controller of outer fan in heating mode and air conditioner Download PDFInfo
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- CN106765872B CN106765872B CN201611039457.9A CN201611039457A CN106765872B CN 106765872 B CN106765872 B CN 106765872B CN 201611039457 A CN201611039457 A CN 201611039457A CN 106765872 B CN106765872 B CN 106765872B
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- copper pipe
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- fan
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
Abstract
The invention discloses a control method of an outer fan in a heating mode, a controller and an air conditioner, wherein the method comprises the following steps: when the air conditioner is in a heating mode, acquiring the current temperature of a heat exchanger copper pipe in an indoor unit; judging whether the current temperature of the heat exchanger copper pipe is lower than a first preset temperature, wherein the first preset temperature is the temperature of the heat exchanger copper pipe corresponding to the closed external fan; and if so, controlling the opening or closing of the outer fan based on the current temperature of the copper pipe of the heat exchanger and the current operating wind level of the inner fan. According to the invention, the temperature of the copper pipe of the heat exchanger in the indoor unit is obtained, and the opening or closing of the outer fan is controlled based on the operation wind shield of the inner fan, so that the problem that when the temperature of the copper pipe of the heat exchanger in the indoor unit does not reach the preset minimum temperature of the copper pipe of the heat exchanger in the indoor unit corresponding to the outer fan, the outer fan cannot be closed, the air conditioner has high exhaust temperature of the compressor when the outdoor environment temperature is high, and the long-term operation of the compressor is not facilitated is solved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method of an outer fan in a heating mode, a controller and an air conditioner.
Background
An air conditioner (air conditioner), also referred to as simply an air conditioner, is used for adjusting and controlling parameters such as temperature, humidity, cleanliness and the like of indoor ambient air. An air conditioner is generally composed of an indoor unit and an outdoor unit.
When the existing air conditioner heats, namely when the air conditioner is in a heating mode, a heat exchanger in an outdoor unit is used as an evaporator and used for absorbing heat from an outdoor environment; the heat exchanger in the indoor unit functions as a condenser for releasing heat to the indoor environment.
The conventional air conditioner controls a fan (for short, an outer fan) in an outdoor unit to be turned on or off by detecting the temperature T2 of a heat exchanger copper pipe in an indoor unit, that is, when the temperature T2 does not reach the preset minimum temperature for turning off the heat exchanger copper pipe in the indoor unit corresponding to the outer fan, the outer fan is not turned off, and of course, if the temperature T2 is greater than or equal to the preset minimum temperature, the outer fan is turned off. However, if the outdoor working environment of the air conditioner is severe (the outdoor environment temperature is high), the evaporator will absorb a large amount of heat when the external fan is turned on, which finally results in a high exhaust temperature of the compressor, and is not favorable for the long-term operation of the compressor.
Disclosure of Invention
In view of the above problems, the present invention provides a control method, a controller and an air conditioner for an external fan in a heating mode, which overcome or at least partially solve the above problems.
To this end, in a first aspect, the present invention provides a method for controlling an external fan in a heating mode, including the steps of:
when the air conditioner is in a heating mode, acquiring the current temperature of a copper pipe of a heat exchanger in an indoor unit of the air conditioner;
judging whether the current temperature of the heat exchanger copper pipe is lower than a first preset temperature or not, wherein the first preset temperature is the temperature of the heat exchanger copper pipe corresponding to the air conditioner external fan;
and if so, controlling the opening or closing of the outer fan based on the current temperature of the copper pipe of the heat exchanger and the current operating wind level of the inner fan of the air conditioner.
Optionally, the controlling the opening or closing of the outer fan based on the current temperature of the copper pipe of the heat exchanger and the current operating wind level of the inner fan of the air conditioner includes:
if the current operation wind shield of the inner fan is any wind shield of the middle wind shield or above, controlling the opening or closing of the outer fan based on the current temperature of the copper pipe of the heat exchanger and a second preset temperature;
the second preset temperature is lower than the first preset temperature and higher than a third preset temperature, and the third preset temperature is a preset highest temperature of the heat exchanger copper pipe corresponding to the external fan;
and the second preset temperature is the preset lowest temperature for closing the heat exchanger copper pipe corresponding to the outer fan when the operation wind shield of the inner fan is any wind shield of middle wind shield or above.
Optionally, the controlling the opening or closing of the outer fan based on the current temperature of the copper pipe of the heat exchanger and a second preset temperature includes:
if the current temperature of the heat exchanger copper pipe is within the temperature range formed by the second preset temperature and the first preset temperature, timing is started, when the timing duration reaches the preset duration, if the temperature change of the heat exchanger copper pipe within the timing duration is within the temperature range, the outer fan is closed.
Optionally, the method further includes:
if the current temperature of the heat exchanger copper pipe is lower than the second preset temperature, or if the current temperature of the heat exchanger copper pipe is in the temperature range and the timing duration does not reach the preset duration, if the temperature change of the heat exchanger copper pipe in the timing duration exceeds the temperature range, the step of judging whether the current temperature of the heat exchanger copper pipe is lower than the first preset temperature is executed again;
wherein said exceeding of said temperature range comprises: lower than the second preset temperature or higher than the first preset temperature.
Optionally, the method further includes:
after the external fan is turned off, judging whether the current temperature of the heat exchanger copper pipe is less than or equal to a third preset temperature, wherein the third preset temperature is the preset highest temperature of the heat exchanger copper pipe corresponding to the turning on of the external fan;
if yes, the outer fan is started.
In a second aspect, the present invention further provides a controller, including the following units:
the device comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring the current temperature of a heat exchanger copper pipe in an indoor unit of the air conditioner when the air conditioner is in a heating mode;
the first judgment unit is used for judging whether the current temperature of the heat exchanger copper pipe is lower than a first preset temperature, wherein the first preset temperature is the temperature of the heat exchanger copper pipe corresponding to the air conditioner external fan;
and the control unit is used for controlling the opening or closing of the outer fan based on the current temperature of the heat exchanger copper pipe and the current running wind gear of the fan in the air conditioner when the first judgment unit judges that the temperature of the heat exchanger copper pipe is less than the first preset temperature.
Optionally, the controlling unit controls the opening or closing of the outer fan based on the current temperature of the copper pipe of the heat exchanger and the current operating wind level of the inner fan of the air conditioner, and includes:
if the current operation wind shield of the inner fan is any wind shield of the middle wind shield or above, controlling the opening or closing of the outer fan based on the current temperature of the copper pipe of the heat exchanger and a second preset temperature;
the second preset temperature is lower than the first preset temperature and higher than a third preset temperature, and the third preset temperature is a preset highest temperature of the heat exchanger copper pipe corresponding to the external fan;
and the second preset temperature is the preset lowest temperature for closing the heat exchanger copper pipe corresponding to the outer fan when the operation wind shield of the inner fan is any wind shield of middle wind shield or above.
Optionally, the control unit controls the opening or closing of the outer fan based on the current temperature of the copper pipe of the heat exchanger and a second preset temperature, and includes:
if the current temperature of the heat exchanger copper pipe is within the temperature range formed by the second preset temperature and the first preset temperature, timing is started, when the timing duration reaches the preset duration, if the temperature change of the heat exchanger copper pipe within the timing duration is within the temperature range, the outer fan is closed.
Optionally, the first determining unit is further configured to:
when the control unit determines that the current temperature of the heat exchanger copper pipe is lower than the second preset temperature, or when the control unit determines that the current temperature of the heat exchanger copper pipe is in the temperature range and the timing duration does not reach the preset duration, the temperature change of the heat exchanger copper pipe in the timing duration exceeds the temperature range, and the first judgment unit judges whether the current temperature of the heat exchanger copper pipe is lower than the first preset temperature or not;
wherein said exceeding of said temperature range comprises: lower than the second preset temperature or higher than the first preset temperature.
Optionally, the controller further includes:
the second judging unit is used for judging whether the current temperature of the heat exchanger copper pipe is less than or equal to a third preset temperature after the control unit closes the external fan, wherein the third preset temperature is a preset highest temperature of the heat exchanger copper pipe corresponding to the external fan;
correspondingly, the control unit is further configured to start the external fan when the second judging unit judges that the current temperature of the copper pipe of the heat exchanger is less than or equal to the third preset temperature.
In a third aspect, the present invention further provides an air conditioner, including:
the controller of the second aspect.
Compared with the prior art, the control method, the controller and the air conditioner of the outer fan in the heating mode provided by the invention have the advantages that the temperature of the heat exchanger copper pipe in the indoor unit is obtained, and the opening or closing of the outer fan is controlled based on the operation wind shield of the inner fan, so that the problems that in the prior art, when the temperature of the heat exchanger copper pipe in the indoor unit does not reach the preset minimum temperature of the heat exchanger copper pipe in the indoor unit corresponding to the outer fan, the outer fan cannot be closed, the exhaust temperature of a compressor is high, and the long-term operation of the compressor is not facilitated when the outdoor environment temperature of the air conditioner is high are solved.
Drawings
Fig. 1 is a flowchart of a control method of an external fan in a heating mode according to a first embodiment of the present invention;
fig. 2 is a flowchart of a control method of an outer fan in a heating mode according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a controller according to a third embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments, but not all embodiments, of the present invention.
It should be noted that, in this document, relational terms such as "first" and "second", and the like are used only to distinguish the same names, and do not imply a relationship or order between the names.
In practical application, it is found that when a fan (for short, an inner fan) in an indoor unit has a large operation wind shield (for example, the operation wind shield is a middle wind shield, a high wind shield or an ultrahigh wind shield), T2 does not rise after reaching a certain temperature, and at the moment, T2 does not reach the preset minimum temperature for closing a heat exchanger copper pipe in the indoor unit corresponding to the outer fan, the existing air conditioner does not close the outer fan, but if the outdoor working environment of the air conditioner is severe (the outdoor environment temperature is high), the outer fan is opened to enable an evaporator to suck a large amount of heat, so that the exhaust temperature of the compressor is high, and the long-term operation of the compressor is not facilitated.
For this reason, as shown in fig. 1, the present embodiment discloses a method for controlling an external fan in a heating mode, which may include the following steps 101 to 103:
101. when the air conditioner is in a heating mode, the current temperature of a copper pipe of a heat exchanger in an indoor unit of the air conditioner is obtained.
In this embodiment, the current temperature of the copper pipe of the heat exchanger in the air conditioner indoor unit is obtained, for example, in the following manner: and receiving the temperature detected by a temperature sensor arranged in the copper pipe of the heat exchanger or in the middle of the heat exchanger of the indoor unit of the air conditioner.
102. Judging whether the current temperature of the heat exchanger copper pipe is lower than a first preset temperature or not, wherein the first preset temperature is the temperature of the heat exchanger copper pipe corresponding to the air conditioner external fan; if yes, go to step 103; if not, the outer fan is closed.
In this embodiment, the first preset temperature may be any value within [55 ℃, 60 ℃), for example, and a person skilled in the art may set the first preset temperature according to an actual situation, and the specific value of the first preset temperature is not limited in this embodiment.
103. And controlling the opening or closing of the outer fan based on the current temperature of the copper pipe of the heat exchanger and the current operating wind shield of the inner fan of the air conditioner.
It can be seen that, in the control method of the outer fan in the heating mode disclosed in this embodiment, by obtaining the temperature of the heat exchanger copper pipe in the indoor unit and controlling the opening or closing of the outer fan based on the operation wind shield of the inner fan, the problem that when the temperature of the heat exchanger copper pipe in the indoor unit does not reach the preset minimum temperature (i.e., the first preset temperature) of the heat exchanger copper pipe in the indoor unit corresponding to the outer fan to be closed, the outer fan cannot be closed, and therefore when the outdoor environment temperature of the air conditioner is high, the exhaust temperature of the compressor is high, and the compressor is not favorable for long-term operation of the compressor is solved.
In a specific example, in step 103, based on the current temperature of the copper pipe of the heat exchanger and the current operating wind level of the internal fan of the air conditioner, the external fan is controlled to be turned on or off, specifically as follows:
and if the current operation wind shield of the inner fan is any wind shield of the middle wind shield or above, controlling the opening or closing of the outer fan based on the current temperature of the copper pipe of the heat exchanger and a second preset temperature.
In this embodiment, any wind break above the medium wind break may be understood as a wind break with a higher wind speed than the medium wind break, such as a high wind break and an ultrahigh wind break. In practical applications, more or fewer dampers may be set based on actual conditions.
In this embodiment, the second preset temperature is a preset minimum temperature for closing the heat exchanger copper tube corresponding to the outer fan when the operation wind level of the inner fan is any wind level above the middle wind level.
In this embodiment, the second preset temperature is lower than the first preset temperature and higher than a third preset temperature, where the third preset temperature is a preset maximum temperature of the heat exchanger copper pipe corresponding to the external fan.
In this embodiment, the third preset temperature is used to indicate: and when the temperature of the copper pipe of the heat exchanger is less than or equal to the third preset temperature, the outer fan is started. The third preset temperature is, for example, any value within [46 ℃, 49 ℃), and a person skilled in the art can set the third preset temperature according to an actual situation, and the specific value of the third preset temperature is not limited in this embodiment.
In this embodiment, if the current operating wind level of the inner fan is any wind level below the middle wind level, the step of determining whether the current temperature of the copper pipe of the heat exchanger is less than the first preset temperature is executed again, that is, step 102 is executed again.
In a specific example, in step 103 of the previous embodiment, the opening or closing of the external fan is controlled based on the current temperature of the copper pipe of the heat exchanger and a second preset temperature, which is specifically as follows:
if the current temperature of the heat exchanger copper pipe is within the temperature range formed by the second preset temperature and the first preset temperature, timing is started, when the timing duration reaches the preset duration, if the temperature change of the heat exchanger copper pipe within the timing duration is within the temperature range, the outer fan is closed.
If the current temperature of the heat exchanger copper pipe is lower than the second preset temperature, or if the current temperature of the heat exchanger copper pipe is within the temperature range and the timing duration does not reach the preset duration, if the temperature change of the heat exchanger copper pipe within the timing duration exceeds the temperature range, the step of judging whether the current temperature of the heat exchanger copper pipe is lower than the first preset temperature is executed again, that is, the step 102 is executed again.
In this embodiment, the preset duration is, for example, 1 minute, and a person skilled in the art can set the preset duration according to an actual situation, and the specific value of the preset duration is not limited in this embodiment.
In this embodiment, the exceeding of the temperature range includes: lower than the second preset temperature or higher than the first preset temperature.
In a specific example, the method shown in fig. 1 further includes step 104, not shown in fig. 1:
104. after the external fan is turned off, judging whether the current temperature of the heat exchanger copper pipe is less than or equal to a third preset temperature, wherein the third preset temperature is the preset highest temperature of the heat exchanger copper pipe corresponding to the turning on of the external fan;
if yes, the outer fan is started.
If not, the outer fan is not started.
Based on the control method of the outer fan in the heating mode provided in the above embodiment, a control flowchart of the outer fan in the heating mode shown in fig. 2 is obtained, where T2 in fig. 2 is a current temperature of a copper pipe of a heat exchanger in an indoor unit, TH is a first preset temperature, TX is a second preset temperature, TL is a third preset temperature, and Δ T is a preset duration. Wherein, TX may be set, for example, in the following manner: and presetting a parameter temperature difference delta T, and then TX is equal to TH-delta T.
It can be seen that, in the control method of the outer fan in the heating mode provided in the above embodiment, by obtaining the temperature of the heat exchanger copper pipe in the indoor unit and controlling the opening or closing of the outer fan based on the operation damper of the inner fan, the problem that when the temperature of the heat exchanger copper pipe in the indoor unit does not reach the preset minimum temperature (i.e. the first preset temperature) of the heat exchanger copper pipe in the indoor unit corresponding to the outer fan to be closed, the outer fan cannot be closed, and therefore when the outdoor environment temperature of the air conditioner is high, the exhaust temperature of the compressor is high, and long-term operation of the compressor is not facilitated is solved.
As shown in fig. 3, the present embodiment discloses a controller, which may include the following units: an acquisition unit 31, a first judgment unit 32, and a control unit 33. The units are specifically described as follows:
the acquiring unit 31 is configured to acquire a current temperature of a heat exchanger copper pipe in an indoor unit of an air conditioner when the air conditioner is in a heating mode;
the first judging unit 32 is configured to judge whether the current temperature of the heat exchanger copper pipe is lower than a first preset temperature, where the first preset temperature is a temperature of the heat exchanger copper pipe corresponding to the air conditioner external fan being turned off;
and the control unit 33 is configured to control the external fan to be turned on or off based on the current temperature of the heat exchanger copper pipe and the current operating wind level of the internal fan of the air conditioner when the first determination unit 32 determines that the temperature of the heat exchanger copper pipe is less than the first preset temperature.
The controller disclosed in this embodiment can implement the flow of the control method of the external fan in the heating mode shown in fig. 1, and therefore, the effect and description of the controller in this embodiment can refer to the method embodiment shown in fig. 1, and are not described herein again.
In a specific example, the controlling unit 33 controls the external fan to be turned on or off based on the current temperature of the copper pipe of the heat exchanger and the current operating wind level of the internal fan of the air conditioner, including:
if the current operation wind shield of the inner fan is any wind shield of the middle wind shield or above, controlling the opening or closing of the outer fan based on the current temperature of the copper pipe of the heat exchanger and a second preset temperature;
the second preset temperature is lower than the first preset temperature and higher than a third preset temperature, and the third preset temperature is a preset highest temperature of the heat exchanger copper pipe corresponding to the external fan;
and the second preset temperature is the preset lowest temperature for closing the heat exchanger copper pipe corresponding to the outer fan when the operation wind shield of the inner fan is any wind shield of middle wind shield or above.
In a specific example, the controlling unit 33 controls the external fan to be turned on or off based on the current temperature of the copper pipe of the heat exchanger and a second preset temperature, and includes:
if the current temperature of the heat exchanger copper pipe is within the temperature range formed by the second preset temperature and the first preset temperature, timing is started, when the timing duration reaches the preset duration, if the temperature change of the heat exchanger copper pipe within the timing duration is within the temperature range, the outer fan is closed.
In a specific example, the first determining unit 32 is further configured to:
when the control unit 33 determines that the current temperature of the heat exchanger copper pipe is lower than the second preset temperature, or when the control unit 33 determines that the current temperature of the heat exchanger copper pipe is within the temperature range and the timing duration does not reach the preset duration, the temperature change of the heat exchanger copper pipe within the timing duration exceeds the temperature range, and the first judgment unit 32 judges whether the current temperature of the heat exchanger copper pipe is lower than the first preset temperature;
wherein said exceeding of said temperature range comprises: lower than the second preset temperature or higher than the first preset temperature.
In a specific example, the controller shown in fig. 3 further includes a second determination unit 34 not shown in fig. 3:
a second judging unit 34, configured to judge whether the current temperature of the heat exchanger copper pipe is less than or equal to a third preset temperature after the control unit 33 turns off the external fan, where the third preset temperature is a preset maximum temperature of the heat exchanger copper pipe corresponding to the external fan;
correspondingly, the control unit 33 is further configured to start the external air blower when the second determining unit 34 determines that the current temperature of the copper pipe of the heat exchanger is less than or equal to the third preset temperature.
It can be seen that, the controller provided in the above embodiment controls the opening or closing of the outer fan by obtaining the temperature of the heat exchanger copper pipe in the indoor unit and based on the operation wind shield of the inner fan, so as to solve the problem that when the temperature of the heat exchanger copper pipe in the indoor unit does not reach the preset lowest temperature (i.e. the first preset temperature) of the heat exchanger copper pipe in the indoor unit corresponding to the outer fan to be closed, the outer fan cannot be closed, and therefore the air conditioner is not favorable for the long-term operation of the compressor when the outdoor environment temperature is higher.
An embodiment of the present invention further provides an air conditioner, including: the above embodiments propose a controller.
It will be appreciated by a person skilled in the art that the units of the embodiments may be combined into one unit and furthermore that they may be divided into a plurality of sub-units. All of the features disclosed in this specification, and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification may be replaced by an alternative feature serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Those skilled in the art will appreciate that although some embodiments described herein include some features included in other embodiments instead of others, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments.
It will be appreciated by a person skilled in the art that the units of the embodiments may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functionality of some or all of the components according to embodiments of the present invention. The present invention may also be embodied as apparatus or device programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (9)
1. A control method of an outer fan in a heating mode is characterized by comprising the following steps:
when the air conditioner is in a heating mode, acquiring the current temperature of a copper pipe of a heat exchanger in an indoor unit of the air conditioner;
judging whether the current temperature of the heat exchanger copper pipe is lower than a first preset temperature or not, wherein the first preset temperature is the temperature of the heat exchanger copper pipe corresponding to the air conditioner external fan;
if so, controlling the opening or closing of the outer fan based on the current temperature of the copper pipe of the heat exchanger and the current operating wind level of the inner fan of the air conditioner;
the control of opening or closing of the outer fan based on the current temperature of the heat exchanger copper pipe and the current operation wind shield of the inner fan of the air conditioner comprises the following steps:
if the current operation wind shield of the inner fan is any wind shield above the middle wind shield, controlling the outer fan to be opened or closed based on the current temperature of the copper pipe of the heat exchanger and a second preset temperature;
the second preset temperature is a preset lowest temperature for closing the heat exchanger copper pipe corresponding to the outer fan when the operation wind shield of the inner fan is any wind shield above the middle wind shield;
the second preset temperature is lower than the first preset temperature and higher than a third preset temperature, and the third preset temperature is a preset highest temperature of the heat exchanger copper pipe corresponding to the outer fan.
2. The method according to claim 1, wherein the controlling the external fan to be turned on or off based on the current temperature of the copper pipe of the heat exchanger and a second preset temperature comprises:
if the current temperature of the heat exchanger copper pipe is within the temperature range formed by the second preset temperature and the first preset temperature, timing is started, when the timing duration reaches the preset duration, if the temperature change of the heat exchanger copper pipe within the timing duration is within the temperature range, the outer fan is closed.
3. The method of claim 2, further comprising:
if the current temperature of the heat exchanger copper pipe is lower than the second preset temperature, or if the current temperature of the heat exchanger copper pipe is in the temperature range and the timing duration does not reach the preset duration, or if the temperature change of the heat exchanger copper pipe in the timing duration exceeds the temperature range, executing the step of judging whether the current temperature of the heat exchanger copper pipe is lower than the first preset temperature again;
wherein said exceeding of said temperature range comprises: lower than the second preset temperature or higher than the first preset temperature.
4. The method according to any one of claims 1 to 3, further comprising:
after the external fan is turned off, judging whether the current temperature of the heat exchanger copper pipe is less than or equal to a third preset temperature, wherein the third preset temperature is the preset highest temperature of the heat exchanger copper pipe corresponding to the turning on of the external fan;
if yes, the outer fan is started.
5. A controller, characterized by comprising the following units:
the device comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring the current temperature of a heat exchanger copper pipe in an indoor unit of the air conditioner when the air conditioner is in a heating mode;
the first judgment unit is used for judging whether the current temperature of the heat exchanger copper pipe is lower than a first preset temperature, wherein the first preset temperature is the temperature of the heat exchanger copper pipe corresponding to the air conditioner external fan;
the control unit is used for controlling the opening or closing of the outer fan based on the current temperature of the heat exchanger copper pipe and the current operating wind level of the fan in the air conditioner when the first judging unit judges that the temperature of the heat exchanger copper pipe is lower than the first preset temperature;
the control unit controls the opening or closing of the outer fan based on the current temperature of the heat exchanger copper pipe and the current operation wind shield of the inner fan of the air conditioner, and comprises:
if the current operation wind shield of the inner fan is any wind shield above the middle wind shield, controlling the outer fan to be opened or closed based on the current temperature of the copper pipe of the heat exchanger and a second preset temperature;
the second preset temperature is lower than the first preset temperature and higher than a third preset temperature, and the third preset temperature is a preset highest temperature of the heat exchanger copper pipe corresponding to the external fan;
and the second preset temperature is the preset lowest temperature for closing the heat exchanger copper pipe corresponding to the outer fan when the operation wind shield of the inner fan is any wind shield above the middle wind shield.
6. The controller according to claim 5, wherein the control unit controls the external fan to be turned on or off based on the current temperature of the copper pipe of the heat exchanger and a second preset temperature, and comprises:
if the current temperature of the heat exchanger copper pipe is within the temperature range formed by the second preset temperature and the first preset temperature, timing is started, when the timing duration reaches the preset duration, if the temperature change of the heat exchanger copper pipe within the timing duration is within the temperature range, the outer fan is closed.
7. The controller according to claim 6, wherein the first judging unit is further configured to:
when the control unit determines that the current temperature of the heat exchanger copper pipe is lower than the second preset temperature, or when the control unit determines that the current temperature of the heat exchanger copper pipe is within the temperature range and the timing duration does not reach the preset duration, or the temperature change of the heat exchanger copper pipe exceeds the temperature range within the timing duration, the first judgment unit judges whether the current temperature of the heat exchanger copper pipe is lower than the first preset temperature or not;
wherein said exceeding of said temperature range comprises: lower than the second preset temperature or higher than the first preset temperature.
8. The controller according to any one of claims 5 to 7, further comprising:
the second judging unit is used for judging whether the current temperature of the heat exchanger copper pipe is less than or equal to a third preset temperature after the control unit closes the external fan, wherein the third preset temperature is a preset highest temperature of the heat exchanger copper pipe corresponding to the external fan;
correspondingly, the control unit is further configured to start the external fan when the second judging unit judges that the current temperature of the copper pipe of the heat exchanger is less than or equal to the third preset temperature.
9. An air conditioner, comprising:
a controller as claimed in any one of claims 5 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611039457.9A CN106765872B (en) | 2016-11-21 | 2016-11-21 | Control method and controller of outer fan in heating mode and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611039457.9A CN106765872B (en) | 2016-11-21 | 2016-11-21 | Control method and controller of outer fan in heating mode and air conditioner |
Publications (2)
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| CN107328061B (en) * | 2017-06-30 | 2020-06-23 | 美的集团武汉制冷设备有限公司 | Air conditioning system, heating control method, and computer-readable storage medium |
| CN110145843B (en) * | 2019-04-19 | 2021-01-29 | 青岛海尔空调器有限总公司 | Air conditioner and control method thereof |
| CN112556114B (en) * | 2020-12-01 | 2021-11-26 | 珠海格力电器股份有限公司 | Control method and device of air conditioner, storage medium and processor |
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| JPS6463756A (en) * | 1987-09-01 | 1989-03-09 | Mitsubishi Electric Corp | Air conditioner |
| CN102734898A (en) * | 2012-07-13 | 2012-10-17 | 海尔集团公司 | Control method and device for improving heating speed of air conditioner |
| CN104728996A (en) * | 2013-12-23 | 2015-06-24 | 珠海格力电器股份有限公司 | Air conditioner high temperature control method, air conditioner high temperature control device and air conditioning unit comprising same |
| CN105042770A (en) * | 2015-07-02 | 2015-11-11 | 珠海格力电器股份有限公司 | Control method and device for air conditioner heating startup |
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| JPS6463756A (en) * | 1987-09-01 | 1989-03-09 | Mitsubishi Electric Corp | Air conditioner |
| CN102734898A (en) * | 2012-07-13 | 2012-10-17 | 海尔集团公司 | Control method and device for improving heating speed of air conditioner |
| CN104728996A (en) * | 2013-12-23 | 2015-06-24 | 珠海格力电器股份有限公司 | Air conditioner high temperature control method, air conditioner high temperature control device and air conditioning unit comprising same |
| CN105042770A (en) * | 2015-07-02 | 2015-11-11 | 珠海格力电器股份有限公司 | Control method and device for air conditioner heating startup |
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Application publication date: 20170531 Assignee: GD MIDEA HEATING & VENTILATING EQUIPMENT Co.,Ltd. Assignor: HEFEI MIDEA HEATING & VENTILATING EQUIPMENT Co.,Ltd.|MIDEA GROUP Co.,Ltd. Contract record no.: X2022440000008 Denomination of invention: A control method, controller and air conditioner of external fan under heating mode Granted publication date: 20191227 License type: Common License Record date: 20220129 |