CN107560067B - Control method and system of air conditioner and air conditioner - Google Patents
Control method and system of air conditioner and air conditioner Download PDFInfo
- Publication number
- CN107560067B CN107560067B CN201710712265.8A CN201710712265A CN107560067B CN 107560067 B CN107560067 B CN 107560067B CN 201710712265 A CN201710712265 A CN 201710712265A CN 107560067 B CN107560067 B CN 107560067B
- Authority
- CN
- China
- Prior art keywords
- temperature
- air conditioner
- air
- fresh air
- return
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a control method of an air conditioner, a control system of the air conditioner and the air conditioner, wherein the control method of the air conditioner comprises the following steps: detecting the working state of the air conditioner and the temperature of the heat exchanger; and when the air conditioner is in a defrosting state or an oil return state and the duration of the temperature of the heat exchanger which is lower than the first preset temperature is longer than the first preset duration, controlling the fresh air fan to continue to operate. The control method of the air conditioner provided by the invention controls the air conditioner to operate in a heating state under a low-temperature environment, such as special working conditions of defrosting or oil return and the like, and controls the fresh air fan to continue to operate, thereby avoiding frequent start and stop of the fresh air fan caused by the fact that the environment temperature or the temperature of the heat exchanger exceeds the heating operation range of the fresh air fan, ensuring the reliability of the fresh air fan, and improving the customer satisfaction degree of the product and the use experience of users.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method of an air conditioner, a control system of the air conditioner and the air conditioner.
Background
With the rapid development of the economy of China and the improvement of the living standard of people, the multi-connected air conditioner is more and more widely applied to the daily life of people. Based on the requirements of health and environmental protection, the fresh air machine is favored by the market because the fresh air machine can introduce fresh air with higher quality. However, due to the unique outdoor air return characteristic of the multi-connected fresh air fan system, the multi-connected fresh air fan system has great differences from a common indoor unit in structure, function and characteristic, for example, the fresh air fan can operate properly for low-temperature heating and the like. However, during the low-temperature heating period of the new fan, once special conditions such as oil return and defrosting are met, the return air temperature of the new fan is affected by radiation of low-temperature refrigerants and easily exceeds the heating operation range of the new fan, and therefore the new fan is shut down when reporting low-temperature faults. The reliability of the new fan can not be guaranteed when the new fan is started and stopped frequently, and the user experience is greatly influenced.
Disclosure of Invention
In order to solve at least one of the above technical problems, an embodiment of a first aspect of the present invention proposes a control method of an air conditioner.
The embodiment of the second aspect of the invention also provides a control system of the air conditioner.
In an embodiment of the third aspect of the invention, an air conditioner is also provided.
In view of the above, according to an embodiment of the first aspect of the present invention, the present invention provides a method for controlling an air conditioner, where the air conditioner includes a fresh air blower, the fresh air blower includes a heat exchanger, and the method for controlling the air conditioner includes: detecting the working state of the air conditioner and the temperature of the heat exchanger; and when the air conditioner is in a defrosting state or an oil return state and the duration of the temperature of the heat exchanger which is lower than the first preset temperature is longer than the first preset duration, controlling the fresh air fan to continue to operate.
The control method of the air conditioner provided by the invention controls the air conditioner to operate in a heating state under a low-temperature environment, such as special working conditions of defrosting or oil return and the like, and controls the fresh air fan to continue to operate, thereby avoiding frequent start and stop of the fresh air fan caused by the fact that the environment temperature or the temperature of the heat exchanger exceeds the heating operation range of the fresh air fan, ensuring the reliability of the fresh air fan, and improving the customer satisfaction degree of the product and the use experience of users.
In addition, the control method of the air conditioner in the above embodiment provided by the present invention may further have the following additional technical features:
in the above technical solution, preferably, the method further includes: controlling the fresh air machine to continuously run, and detecting the return air temperature of the fresh air machine; if the return air temperature is lower than the heating operation temperature lower limit value of the new fan, assigning the return air temperature as the sum of the heating operation temperature lower limit value and the temperature correction value; and controlling the air conditioner to continue to operate according to the assigned return air temperature.
In the technical scheme, the return air temperature of the fresh air fan is detected when the fresh air fan is controlled to continuously operate, the return air temperature is assigned if the return air temperature is lower than the lower limit value of the heating operation temperature of the fresh air fan, then the air conditioner is controlled to operate according to the assignment result, the fresh air fan can continuously operate without frequent start and stop through the assignment process, and then the result of the assigned return air temperature is within the normal heating operation temperature range of the fresh air fan, so that the fresh air fan can continuously control related components to continuously operate normally according to the assumed return air temperature, and the fresh air fan cannot be frequently started and stopped or the air conditioner cannot normally operate. The lower limit value of the heating operation temperature is generally a preset value when the fresh air fan leaves a factory, and the temperature correction value can be set automatically, for example, the temperature correction value can be set to 1 ℃, so that the return air temperature after assignment can be ensured to be within a normal heating operation temperature range.
In any of the above technical solutions, preferably, the method further includes: when the accumulated operation time of the fresh air machine is longer than the maximum defrosting operation time and the maximum oil return operation time of the air conditioner after the fresh air machine is controlled to continue to operate, detecting the return air temperature of the fresh air machine; and controlling the air conditioner to continuously operate according to the actual detection value of the return air temperature.
In the technical scheme, when the accumulated operation time of the fresh air machine is longer than the maximum defrosting operation time and the maximum oil return operation time of the air conditioner after the fresh air machine is controlled to continue to operate, the defrosting or oil return of the air conditioner is finished, the return air temperature of the fresh air machine is detected again, and the air conditioner can be normally controlled to continue to operate according to the actual detection value of the return air temperature, so that the air conditioner is restored to a normal operating state.
In any of the above technical solutions, preferably, the step of detecting the operating state of the air conditioner specifically includes: detecting the return air temperature of the fresh air fan when the air conditioner is in a heating state; and when the duration of the return air temperature lower than the second preset temperature is longer than the second preset duration, judging that the air conditioner enters a defrosting state or an oil return state.
In the technical scheme, if the air conditioner is in the heating state, when the duration of the return air temperature being lower than the second preset temperature is longer than the second preset duration, the air conditioner can be judged to enter the defrosting state or the oil return state, and whether the air conditioner enters the defrosting state or the oil return state can be preliminarily judged by the judging method, so that the air conditioner and the fresh air machine thereof can be controlled subsequently.
In any of the above technical solutions, preferably, the method further includes: and detecting the working state of the air conditioner and the temperature of the heat exchanger every third preset time.
In the technical scheme, the working state of the air conditioner and the temperature of the heat exchanger are periodically detected, so that the air conditioner and the fresh air machine are controlled, the normal operation of the air conditioner is ensured, the frequent start and stop of the fresh air machine caused by the fact that the temperature of the environment or the temperature of the heat exchanger exceeds the heating operation range of the fresh air machine are avoided, the reliability of the fresh air machine is ensured, and the customer satisfaction degree of a product and the use experience of a user are improved.
An embodiment of the second aspect of the present invention further provides a control system of an air conditioner, where the air conditioner includes a fresh air blower, the fresh air blower includes a heat exchanger, and the control system of the air conditioner includes: the detection unit is used for detecting the working state of the air conditioner and the temperature of the heat exchanger; and the control unit is used for controlling the fresh air machine to continuously operate when the air conditioner is in a defrosting state or an oil return state and the duration of the temperature of the heat exchanger which is lower than the first preset temperature is longer than the first preset duration.
The control system of the air conditioner controls the air conditioner to operate continuously under special working conditions such as defrosting or oil return when the air conditioner operates in a heating state in a low-temperature environment, so that frequent start and stop of the fresh air machine caused by the fact that the environment temperature or the temperature of the heat exchanger exceeds the heating operation range of the fresh air machine are avoided, the reliability of the fresh air machine is guaranteed, and the customer satisfaction degree of products and the use experience of users are improved.
In addition, the control system of the air conditioner in the above embodiment provided by the present invention may further have the following additional technical features:
in the above technical solution, preferably, the method further includes: an assignment unit; the detection unit is also used for detecting the return air temperature of the fresh air fan when the control unit controls the fresh air fan to continuously operate; the assignment unit is used for assigning the return air temperature as the sum of the heating operation temperature lower limit value and the temperature correction value if the return air temperature is lower than the heating operation temperature lower limit value of the new fan; the control unit is also used for controlling the air conditioner to continue to operate according to the assigned return air temperature.
In the technical scheme, the return air temperature of the fresh air fan is detected when the fresh air fan is controlled to continuously operate, the return air temperature is assigned if the return air temperature is lower than the lower limit value of the heating operation temperature of the fresh air fan, then the air conditioner is controlled to operate according to the assignment result, the fresh air fan can continuously operate without frequent start and stop through the assignment process, and then the result of the assigned return air temperature is within the normal heating operation temperature range of the fresh air fan, so that the fresh air fan can continuously control related components to continuously operate normally according to the assumed return air temperature, and the fresh air fan cannot be frequently started and stopped or the air conditioner cannot normally operate. The lower limit value of the heating operation temperature is generally a preset value when the fresh air fan leaves a factory, and the temperature correction value can be set automatically, for example, the temperature correction value can be set to 1 ℃, so that the return air temperature after assignment can be ensured to be within a normal heating operation temperature range.
In any of the above technical solutions, preferably, the detection unit is further configured to detect the return air temperature of the fresh air machine when the control unit controls the fresh air machine to continue to operate and then the accumulated operation time of the fresh air machine is longer than the maximum defrosting operation time and the maximum oil return operation time of the air conditioner; the control unit is also used for controlling the air conditioner to continue to operate according to the actual detection value of the return air temperature.
In the technical scheme, when the accumulated operation time of the fresh air machine is longer than the maximum defrosting operation time and the maximum oil return operation time of the air conditioner after the fresh air machine is controlled to continue to operate, the defrosting or oil return of the air conditioner is finished, the return air temperature of the fresh air machine is detected again, and the air conditioner can be normally controlled to continue to operate according to the actual detection value of the return air temperature, so that the air conditioner is restored to a normal operating state.
In any of the above technical solutions, preferably, the method further includes: a judgment unit; the detection unit is also used for detecting the return air temperature of the fresh air fan when the air conditioner is in a heating state; the judging unit is used for judging that the air conditioner enters a defrosting state or an oil return state when the duration of the return air temperature lower than the second preset temperature is longer than the second preset duration.
In the technical scheme, if the air conditioner is in the heating state, when the duration of the return air temperature being lower than the second preset temperature is longer than the second preset duration, the air conditioner can be judged to enter the defrosting state or the oil return state, and whether the air conditioner enters the defrosting state or the oil return state can be preliminarily judged by the judging method, so that the air conditioner and the fresh air machine thereof can be controlled subsequently.
In any of the above technical solutions, preferably, the detection unit is further configured to detect the operating state of the air conditioner and the temperature of the heat exchanger every third preset time period.
In the technical scheme, the working state of the air conditioner and the temperature of the heat exchanger are periodically detected, so that the air conditioner and the fresh air machine are controlled, the normal operation of the air conditioner is ensured, the frequent start and stop of the fresh air machine caused by the fact that the temperature of the environment or the temperature of the heat exchanger exceeds the heating operation range of the fresh air machine are avoided, the reliability of the fresh air machine is ensured, and the customer satisfaction degree of a product and the use experience of a user are improved.
Embodiments of the third aspect of the present invention also provide an air conditioner, including: the fresh air machine comprises a heat exchanger; and a control system of an air conditioner according to an embodiment of the second aspect of the present invention.
By adopting the control system of the air conditioner provided by the embodiment of the second aspect of the invention, the frequent start and stop of the fresh air machine caused by the fact that the ambient temperature or the temperature of the heat exchanger exceeds the heating operation range of the fresh air machine are avoided, the reliability of the fresh air machine is ensured, and the customer satisfaction of the product and the use experience of a user are improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a flowchart illustrating a control method of an air conditioner according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a control method of an air conditioner according to another embodiment of the present invention;
fig. 3 is a flowchart illustrating a control method of an air conditioner according to still another embodiment of the present invention;
fig. 4 is a schematic block diagram of a control system of an air conditioner according to an embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
A control method of an air conditioner and a control system of an air conditioner according to some embodiments of the present invention are described below with reference to fig. 1 to 4.
As shown in fig. 1, a flow chart of a control method of an air conditioner according to an embodiment of the present invention is schematically shown, the control method may be used to control the air conditioner, the air conditioner includes a fresh air blower, the fresh air blower includes a heat exchanger, and the control method of the air conditioner includes the following steps:
step S102, detecting the working state of the air conditioner and the temperature of the heat exchanger;
and step S104, when the air conditioner is in a defrosting state or an oil return state and the duration of the temperature of the heat exchanger lower than the first preset temperature is longer than the first preset duration, controlling the fresh air fan to continue to operate.
In the embodiment, the air conditioner is controlled to operate in a heating state in a low-temperature environment, if special working conditions such as defrosting or oil return are carried out, the new fan is controlled to continue to operate, so that frequent starting and stopping of the new fan caused by the fact that the temperature of the environment or the temperature of the heat exchanger exceeds the heating operation range of the new fan are avoided, the reliability of the new fan is guaranteed, and the customer satisfaction degree of products and the use experience of users are improved.
As shown in fig. 2, a flow chart of a control method of an air conditioner according to an embodiment of the present invention is schematically shown, the control method may be used to control the air conditioner, the air conditioner includes a fresh air blower, the fresh air blower includes a heat exchanger, and the control method of the air conditioner includes the following steps:
step S202, detecting the working state of the air conditioner and the temperature of the heat exchanger;
step S204, when the air conditioner is in a defrosting state or an oil return state and the duration of the temperature of the heat exchanger which is lower than the first preset temperature is longer than the first preset duration, controlling the fresh air fan to continue to operate;
step S206, detecting the return air temperature of the fresh air machine;
step S208, judging whether the return air temperature is lower than the heating operation temperature lower limit value of the fresh air fan, if so, entering step S210, otherwise, returning to step S206;
step S210, assigning the return air temperature as the sum of the heating operation temperature lower limit value and the temperature correction value;
and step S212, controlling the air conditioner to continuously operate according to the assigned return air temperature.
In the embodiment, the return air temperature of the fresh air fan is detected when the fresh air fan is controlled to continuously operate, the return air temperature is assigned if the return air temperature is lower than the lower limit value of the heating operation temperature of the fresh air fan, then the air conditioner is controlled to operate according to the assignment result, the fresh air fan can continuously operate without frequent start and stop through the assignment process, and then the fresh air fan can continuously control related components to continuously operate normally according to the assumed return air temperature without frequent start and stop of the fresh air fan or incapability of normal operation of the air conditioner due to the fact that the result of the assignment of the return air temperature is within the normal heating operation temperature range of the fresh air fan. The lower limit value of the heating operation temperature is generally a preset value when the fresh air fan leaves a factory, and the temperature correction value can be set automatically, for example, the temperature correction value can be set to 1 ℃, so that the return air temperature after assignment can be ensured to be within a normal heating operation temperature range.
As shown in fig. 3, a flow chart of a control method of an air conditioner according to an embodiment of the present invention is schematically shown, the control method may be used to control the air conditioner, the air conditioner includes a fresh air blower, the fresh air blower includes a heat exchanger, and the control method of the air conditioner includes the following steps:
step S302, detecting the working state of the air conditioner and the temperature of the heat exchanger;
step S304, when the air conditioner is in a defrosting state or an oil return state and the duration of the temperature of the heat exchanger which is lower than the first preset temperature is longer than the first preset duration, controlling the fresh air fan to continue to operate;
step S306, detecting the return air temperature of the fresh air machine;
step S308, judging whether the return air temperature is lower than the lower limit value of the heating operation temperature of the fresh air fan, if so, entering step S310, otherwise, returning to step S306;
step S310, assigning the return air temperature as the sum of the lower limit value of the heating operation temperature and the temperature correction value;
step S312, controlling the air conditioner to continue to operate according to the assigned return air temperature;
step S314, judging whether the accumulated operation time of the fresh air machine is longer than the maximum defrosting operation time and the maximum oil return operation time of the air conditioner, if so, entering step S316, otherwise, returning to step S302;
step S316, detecting the return air temperature of the fresh air machine;
and step S318, controlling the air conditioner to continuously operate according to the actual detection value of the return air temperature.
In this embodiment, when the accumulated operation time of the fresh air machine after the fresh air machine is controlled to continue to operate is longer than the maximum defrosting operation time and the maximum oil return operation time of the air conditioner, which is equivalent to that the air conditioner has finished defrosting or oil return, and then the return air temperature of the fresh air machine is detected again, the air conditioner can be normally controlled to continue to operate according to the actual detection value of the return air temperature, so that the air conditioner is restored to the normal operation state.
In an embodiment of the present invention, preferably, the step of detecting the operating state of the air conditioner specifically includes: detecting the return air temperature of the fresh air fan when the air conditioner is in a heating state; and when the duration of the return air temperature lower than the second preset temperature is longer than the second preset duration, judging that the air conditioner enters a defrosting state or an oil return state.
In this embodiment, if the air conditioner is in the heating state, and the duration of the return air temperature being lower than the second preset temperature is longer than the second preset duration, it may be determined that the air conditioner enters the defrosting state or the oil return state, and it may be preliminarily determined whether the air conditioner enters the defrosting state or the oil return state by the above determination method, so as to perform subsequent control on the air conditioner and the fresh air blower thereof.
In one embodiment of the present invention, preferably, the method further includes: and detecting the working state of the air conditioner and the temperature of the heat exchanger every third preset time.
In this embodiment, the operating condition of air conditioner and the temperature of heat exchanger are detected periodically to in control air conditioner and new fan, guarantee the normal operating of air conditioner, avoid simultaneously because of the frequent start-stop of new fan that leads to of ambient temperature or heat exchanger temperature surpass the operation range that heats of new fan, guarantee new fan reliability, promote the customer satisfaction and the user's of product and use and experience.
The present invention also provides a control system 4 of an air conditioner, as shown in fig. 4, which can be used for controlling the air conditioner, the air conditioner includes a fresh air machine, the fresh air machine includes a heat exchanger, the control system 4 of the air conditioner includes: a detection unit 402 for detecting an operating state of the air conditioner and a temperature of the heat exchanger; and the control unit 404 is configured to control the fresh air machine to continue to operate when the air conditioner is in the defrosting state or the oil return state and the duration that the temperature of the heat exchanger is lower than the first preset temperature is longer than the first preset duration.
The control system 4 of the air conditioner provided by the invention controls the air conditioner to operate in a heating state under a low-temperature environment, such as special working conditions of defrosting or oil return and the like, and controls the fresh air fan to continue to operate, so that frequent start and stop of the fresh air fan caused by the fact that the environment temperature or the temperature of the heat exchanger exceeds the heating operation range of the fresh air fan are avoided, the reliability of the fresh air fan is ensured, and the customer satisfaction degree of the product and the use experience of a user are improved.
In an embodiment of the present invention, as shown in fig. 4, it is preferable that: an assignment unit 406; the detection unit 402 is further configured to detect the return air temperature of the fresh air machine when the control unit 404 controls the fresh air machine to continue to operate; the assignment unit 406 is configured to assign the return air temperature to the sum of the heating operation temperature lower limit value and the temperature correction value if the return air temperature is lower than the heating operation temperature lower limit value of the fresh air fan; the control unit 404 is also used to control the air conditioner to continue operating according to the assigned return air temperature.
In the embodiment, the return air temperature of the fresh air fan is detected when the fresh air fan is controlled to continuously operate, the return air temperature is assigned if the return air temperature is lower than the lower limit value of the heating operation temperature of the fresh air fan, then the air conditioner is controlled to operate according to the assignment result, the fresh air fan can continuously operate without frequent start and stop through the assignment process, and then the fresh air fan can continuously control related components to continuously operate normally according to the assumed return air temperature without frequent start and stop of the fresh air fan or incapability of normal operation of the air conditioner due to the fact that the result of the assignment of the return air temperature is within the normal heating operation temperature range of the fresh air fan. The lower limit value of the heating operation temperature is generally a preset value when the fresh air fan leaves a factory, and the temperature correction value can be set automatically, for example, the temperature correction value can be set to 1 ℃, so that the return air temperature after assignment can be ensured to be within a normal heating operation temperature range.
In an embodiment of the present invention, preferably, as shown in fig. 4, further includes: the detecting unit 402 is further configured to detect the return air temperature of the fresh air machine when the control unit 404 controls the fresh air machine to continue to operate and the accumulated operation time of the fresh air machine is longer than the maximum defrosting operation time and the maximum oil return operation time of the air conditioner; the control unit 404 is also used to control the air conditioner to continue operating based on the actual sensed value of the return air temperature.
In this embodiment, when the accumulated operation time of the fresh air machine after the fresh air machine is controlled to continue to operate is longer than the maximum defrosting operation time and the maximum oil return operation time of the air conditioner, which is equivalent to that the air conditioner has finished defrosting or oil return, and then the return air temperature of the fresh air machine is detected again, the air conditioner can be normally controlled to continue to operate according to the actual detection value of the return air temperature, so that the air conditioner is restored to the normal operation state.
In an embodiment of the present invention, preferably, as shown in fig. 4, further includes: a judgment unit 408; the detection unit 402 is also used for detecting the return air temperature of the fresh air machine when the air conditioner is in a heating state; the determining unit 408 is configured to determine that the air conditioner enters the defrosting state or the oil return state when the duration of the return air temperature being lower than the second preset temperature is longer than the second preset duration.
In this embodiment, if the air conditioner is in the heating state, and the duration of the return air temperature being lower than the second preset temperature is longer than the second preset duration, it may be determined that the air conditioner enters the defrosting state or the oil return state, and it may be preliminarily determined whether the air conditioner enters the defrosting state or the oil return state by the above determination method, so as to perform subsequent control on the air conditioner and the fresh air blower thereof.
In an embodiment of the present invention, preferably, as shown in fig. 4, the detecting unit 402 is further configured to detect the operating state of the air conditioner and the temperature of the heat exchanger every third preset time period.
In this embodiment, the operating condition of air conditioner and the temperature of heat exchanger are detected periodically to in control air conditioner and new fan, guarantee the normal operating of air conditioner, avoid simultaneously because of the frequent start-stop of new fan that leads to of ambient temperature or heat exchanger temperature surpass the operation range that heats of new fan, guarantee new fan reliability, promote the customer satisfaction and the user's of product and use and experience.
The present invention also provides an air conditioner, comprising: the fresh air machine comprises a heat exchanger; and a control system 4 of an air conditioner according to an embodiment of the second aspect of the present invention.
By adopting the control system 4 of the air conditioner provided by the embodiment of the second aspect of the invention, the frequent start and stop of the fresh air machine caused by the fact that the ambient temperature or the temperature of the heat exchanger exceeds the heating operation range of the fresh air machine are avoided, the reliability of the fresh air machine is ensured, and the customer satisfaction of the product and the use experience of a user are improved.
In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A control method of an air conditioner, wherein the air conditioner comprises a fresh air fan, the fresh air fan comprises a heat exchanger, and the control method of the air conditioner comprises the following steps:
detecting the working state of the air conditioner and the temperature of the heat exchanger;
when the air conditioner is in a defrosting state or an oil return state and the duration of the temperature of the heat exchanger which is lower than a first preset temperature is longer than a first preset duration, controlling the fresh air fan to continue to operate;
further comprising:
controlling the fresh air fan to continuously run, and detecting the return air temperature of the fresh air fan;
if the return air temperature is lower than the lower limit value of the heating operation temperature of the fresh air fan, assigning the return air temperature as the sum of the lower limit value of the heating operation temperature and the temperature correction value;
and controlling the air conditioner to continuously operate according to the assigned return air temperature.
2. The control method of an air conditioner according to claim 1, further comprising:
when the accumulated operation time of the fresh air fan is longer than the maximum defrosting operation time and the maximum oil return operation time of the air conditioner after the fresh air fan is controlled to continue to operate, detecting the return air temperature of the fresh air fan;
and controlling the air conditioner to continuously operate according to the actual detection value of the return air temperature.
3. The method according to claim 1 or 2, wherein the step of detecting the operating state of the air conditioner specifically comprises:
detecting the return air temperature of the fresh air fan when the air conditioner is in a heating state;
and when the duration of the return air temperature lower than the second preset temperature is longer than the second preset duration, judging that the air conditioner enters a defrosting state or an oil return state.
4. The control method of an air conditioner according to claim 1 or 2, further comprising:
and detecting the working state of the air conditioner and the temperature of the heat exchanger every third preset time.
5. The utility model provides a control system of air conditioner, the air conditioner includes new fan, new fan includes the heat exchanger, its characterized in that, control system of air conditioner includes:
the detection unit is used for detecting the working state of the air conditioner and the temperature of the heat exchanger;
the control unit is used for controlling the fresh air fan to continuously operate when the air conditioner is in a defrosting state or an oil return state and the duration of the temperature of the heat exchanger, which is lower than a first preset temperature, is longer than a first preset duration;
further comprising:
an assignment unit;
the detection unit is also used for detecting the return air temperature of the fresh air machine when the control unit controls the fresh air machine to continuously run;
the assignment unit is used for assigning the return air temperature as the sum of the lower heating operation temperature limit value and the temperature correction value if the return air temperature is lower than the lower heating operation temperature limit value of the new fan;
the control unit is also used for controlling the air conditioner to continue to operate according to the assigned return air temperature.
6. The control system of an air conditioner according to claim 5,
the detection unit is also used for detecting the return air temperature of the fresh air machine when the accumulated operation time of the fresh air machine is longer than the maximum defrosting operation time and the maximum oil return operation time of the air conditioner after the control unit controls the fresh air machine to continue to operate;
the control unit is also used for controlling the air conditioner to continue to operate according to the actual detection value of the return air temperature.
7. The control system of an air conditioner according to claim 5 or 6, further comprising:
a judgment unit;
the detection unit is also used for detecting the return air temperature of the fresh air fan when the air conditioner is in a heating state;
the judging unit is used for judging that the air conditioner enters a defrosting state or an oil return state when the duration that the return air temperature is lower than the second preset temperature is longer than the second preset duration.
8. The control system of an air conditioner according to claim 5 or 6,
the detection unit is further used for detecting the working state of the air conditioner and the temperature of the heat exchanger every third preset time.
9. An air conditioner, comprising:
the fresh air machine comprises a heat exchanger; and
the control system of an air conditioner according to any one of claims 5 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710712265.8A CN107560067B (en) | 2017-08-18 | 2017-08-18 | Control method and system of air conditioner and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710712265.8A CN107560067B (en) | 2017-08-18 | 2017-08-18 | Control method and system of air conditioner and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107560067A CN107560067A (en) | 2018-01-09 |
| CN107560067B true CN107560067B (en) | 2020-05-19 |
Family
ID=60976027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710712265.8A Active CN107560067B (en) | 2017-08-18 | 2017-08-18 | Control method and system of air conditioner and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107560067B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109059180B (en) * | 2018-07-27 | 2021-01-26 | 广东美的制冷设备有限公司 | Control method and device of air conditioner, air conditioner and computer readable storage medium |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014040954A (en) * | 2012-08-22 | 2014-03-06 | Corona Corp | Heat pump-type hot water heating device |
| CN106152373B (en) * | 2015-03-25 | 2019-12-03 | 大金工业株式会社 | The control method and air conditioner indoor unit of air conditioner indoor unit |
| CN105135620B (en) * | 2015-09-11 | 2017-11-10 | 广东美的暖通设备有限公司 | Air-conditioner outdoor unit Defrost method |
| CN105276768B (en) * | 2015-11-09 | 2018-04-03 | 广东美的制冷设备有限公司 | A kind of air-conditioner defrosting control method, control system and air-conditioning |
| CN105758065B (en) * | 2016-02-29 | 2019-04-12 | 青岛海尔空调电子有限公司 | A kind of air-conditioning system method for controlling oil return |
| CN106247535A (en) * | 2016-08-08 | 2016-12-21 | 珠海格力电器股份有限公司 | Control method and system for protecting air conditioning unit |
| CN106594991A (en) * | 2016-12-19 | 2017-04-26 | 广东美的制冷设备有限公司 | Defrosting control method, defrosting control device and air conditioner |
-
2017
- 2017-08-18 CN CN201710712265.8A patent/CN107560067B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107560067A (en) | 2018-01-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11118590B2 (en) | Adaptive control for motor fan with multiple speed taps | |
| CN109974237B (en) | Air conditioner and method and device for adjusting operation strategy of air conditioner | |
| CN107525234B (en) | Method and device for frequency conversion protection of air conditioner compressor | |
| CN104006498B (en) | The control method and device of air-conditioner automatic running | |
| CN105333580A (en) | Control method of air conditioner, control device of air conditioner and air conditioner | |
| CN104566836A (en) | Air conditioner and method and device for automatically controlling air conditioner | |
| CN106765862B (en) | Air conditioner and starting control device and method thereof | |
| CN107367012B (en) | High-temperature-resistant protection method, protection device and protection system for air conditioning system | |
| CN102121740A (en) | Air conditioner control system and control method and air conditioner | |
| KR101540221B1 (en) | Thermo-hygrostat and its controll method using absolute humidity | |
| CN103089598A (en) | Control method of air conditioning compressor | |
| CN105716208A (en) | Working control method and device of air conditioner | |
| CN105157161A (en) | Method and device for detecting frosting of air conditioner | |
| CN105352125A (en) | Method and device for detecting work environment of outdoor unit of air conditioner | |
| WO2020224037A1 (en) | Control method and device for multi-split air conditioning system | |
| CN113124538B (en) | Compressor preheating control method and device and air conditioning equipment | |
| CN107401812A (en) | Air conditioner control method and device and air conditioner | |
| CN107490124B (en) | Heating equipment and indoor ventilation detection method and detection device | |
| CN108917094A (en) | A kind of defrosting control method, device and air conditioner | |
| CN105627519B (en) | Control method and control device of fresh air system | |
| WO2023020078A1 (en) | Control method and device for air conditioner, and server | |
| CN107560067B (en) | Control method and system of air conditioner and air conditioner | |
| CN112413735A (en) | Fresh air conditioner control method and device, storage medium and fresh air conditioner | |
| CN203615545U (en) | Air conditioner | |
| CN108954716B (en) | Control method of air conditioner, air conditioner and computer readable storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |