CN110332663B - Air conditioner operation control method and device and air conditioner - Google Patents
Air conditioner operation control method and device and air conditioner Download PDFInfo
- Publication number
- CN110332663B CN110332663B CN201910454730.1A CN201910454730A CN110332663B CN 110332663 B CN110332663 B CN 110332663B CN 201910454730 A CN201910454730 A CN 201910454730A CN 110332663 B CN110332663 B CN 110332663B
- Authority
- CN
- China
- Prior art keywords
- air conditioner
- rapid cooling
- cooling mode
- condition
- operation control
- 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
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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
- F24F11/526—Indication arrangements, e.g. displays giving audible indications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—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
- F24F11/65—Electronic processing for selecting an operating mode
-
- 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
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2120/00—Control inputs relating to users or occupants
- F24F2120/10—Occupancy
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Human Computer Interaction (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides an air conditioner operation control method, which comprises the following steps: judging whether a person is in a room or not after the air conditioner is started; if no person is in the room, detecting the room temperature and judging whether the current room temperature is greater than the preset temperature so as to determine whether to enter a rapid cooling mode. According to the invention, the condition of entering the rapid cooling mode by high-temperature starting, the exit condition of the rapid cooling mode and the judgment of exiting again after people enter the room are set, so that whether people exist in the room or not can be combined with the operation of the rapid cooling mode, and the intellectualization of the rapid cooling mode is enhanced. Meanwhile, air can be guided to the vicinity of the door, so that heat-shielding personnel can enter the room actively, and the air conditioner can save more energy when running at high temperature.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner operation control method, an air conditioner operation control device and an air conditioner.
Background
An air conditioner is a common household appliance, and with the progress of society and the increase of people's demand, the air conditioner has been greatly developed in terms of system performance. Generally, the air conditioner is hot in summer and stuffy indoors, the requirement of a user cannot be met at the moment when the air conditioner is just opened, the air conditioner is also hot compared with the outdoor air, and the user generally takes the air out after the air conditioner is opened and then returns. Because the air conditioner cannot meet the requirement of a user on cooling capacity when being started, a pre-cooling process (including remotely starting the air conditioner before a person enters a room or starting the air conditioner after the person enters the room and then leaves the room) is often carried out. However, a long pre-cooling time may result in a long waiting time for the user, and thus the rapid cooling mode is usually enabled.
At present, the air conditioner is operated in a rapid cooling mode manually, on one hand, the air conditioner cannot save energy due to single exit condition, and on the other hand, the air conditioner is easy to cause the problems of catching cold and catching a cold of people who enter a room. When the set temperature of the air conditioner needs to be changed and the rapid cooling mode operation needs to be exited, the set temperature of the air conditioner can be manually adjusted only, and great inconvenience is brought. In addition, sometimes the indoor temperature reaches the normal use requirement, but the user increases the power consumption operation of the air conditioner due to lack of perception of the indoor temperature, which also causes the problem of energy saving.
Disclosure of Invention
The invention solves the problem that the rapid cooling mode can not be intelligently exited.
In order to solve the above problem, a first aspect of the present invention provides an air conditioner operation control method, including:
s1, judging whether a person is in the room or not after the air conditioner is started;
s2, if no person is judged to be in the room, the operation goes to S3;
s3, detecting the room temperature and judging whether the current room temperature is greater than the preset temperature; if so, controlling the air conditioner to operate in a first rapid cooling mode; if not, controlling the air conditioner to stably operate according to the set temperature.
The invention can combine the indoor existence of people, temperature condition and the operation of the rapid cooling mode, and strengthen the intellectualization of the startup of the rapid cooling mode.
Further, after the step S3, the method further includes:
s4, when a first condition or a second condition is met, the air conditioner exits from the first rapid cooling mode;
the first condition is: detecting that the room temperature is less than 0.9 times of the preset temperature;
the second condition is: a person is detected in the room.
Further, the step S4 includes:
s4-1, when the second condition is met but the first condition is not met, the air conditioner continues to operate in the first rapid cooling mode for a first preset time, and whether the second condition is still met or not is judged after the first preset time;
and S4-2, if the second condition is still met after the first preset time, the air conditioner exits the first rapid cooling mode.
Further, in step S4-2, after the air conditioner exits from the first rapid cooling mode, the air conditioner is operated according to the temperature which is stored in the air conditioner and has the longest previous air conditioner operation time.
Further, the step S4-2 further includes: after the first preset time, if the second condition is not met, further judging whether the first condition is met, and operating in a second rapid cooling mode before the first condition is met until the second rapid cooling mode is exited after the first condition is met;
alternatively, the first and second electrodes may be,
if the second condition is not met after the first preset time and the second condition is judged to be not met again after the second preset time, the air conditioner operates in the second rapid cooling mode and detects the position of the indoor door so as to adjust the direction of the air outlet of the air conditioner pointing to the door;
the air conditioner operating intensity in the second rapid cooling mode is higher than that in the first rapid cooling mode.
Further, in the second rapid cooling mode, the compressor, the expansion valve and the fan of the air conditioner are all in the maximum working state.
Further, the second preset time is less than the first preset time.
Further, the step S2 further includes: and if the indoor people are judged, adjusting the air outlet of the air conditioner to blow air in the direction pointing to the area where the people are located.
Furthermore, the air conditioner gives out prompt sound after exiting the rapid cooling mode.
Further, the preset temperature is greater than or equal to 30 ℃.
In a second aspect of the present invention, there is provided an air-conditioning operation control device for implementing the above-described air-conditioning operation control method, the air-conditioning operation control device including:
the human body judging module is used for judging whether a person is in the room;
the room temperature detection module is used for detecting the current room temperature and judging whether the current room temperature is greater than the preset temperature;
and the operation mode control module is used for controlling the air conditioner to operate in a specified operation mode.
In a third aspect of the present invention, an air conditioner is provided, which includes an indoor unit including the air conditioner operation control device.
The beneficial effects of the invention include:
by setting the conditions for entering the rapid cooling mode by high-temperature starting, the exit conditions of the rapid cooling mode and the judgment for exiting again after people enter the room, whether people exist in the room or not can be combined with the operation of the rapid cooling mode, and the intellectualization of the rapid cooling mode is enhanced. Meanwhile, air can be guided to the vicinity of the door, so that heat-shielding personnel can enter the room actively, and the air conditioner can save more energy when running at high temperature. In addition, the invention also combines the infrared device to supply air in a partitioned mode, so that the air supply control of the air conditioner is more intelligent, and the user experience is further improved.
Drawings
FIG. 1 is a schematic view of the main flow of the air conditioner operation control according to the present invention;
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In a first aspect of the present invention, a method for controlling an air conditioner operation is provided, and a main process thereof can be seen in fig. 1. The air conditioner operation control method comprises the following steps:
s1, judging whether a person is in the room or not after the air conditioner is started (for example, through an infrared device or other biological recognition devices);
s2, if no person is judged to be in the room, the operation goes to S3; and if the indoor people are judged, adjusting the air outlet of the air conditioner to blow air in the direction pointing to the area where the people are located.
S3, detecting the room temperature and judging whether the current room temperature is greater than the preset temperature; if so, controlling the air conditioner to operate in a first rapid cooling mode; if not, the air conditioner is controlled to stably operate according to the set temperature (such as the temperature set on the remote controller).
Wherein the preset temperature is preferably equal to or higher than 30 ℃. It should be noted that the preset temperature is used to measure the room temperature, and is not the temperature set by the air conditioner (e.g., the temperature set on the remote controller).
S4, when a first condition or a second condition is met, the air conditioner exits from the first rapid cooling mode;
the first condition is: detecting that the room temperature is less than 0.9 times of the preset temperature;
the second condition is: a person is detected in the room.
That is, the first rapid cooling mode may be exited when the detected room temperature is less than 0.9 times the preset temperature (assuming that the preset temperature is 30 ℃, the detected room temperature is less than 27 ℃); or directly quitting the first rapid cooling mode when a person is detected in the room.
However, when a person is detected in the room, several determination steps may be further performed to determine whether to exit the first rapid cooling mode. Thus, the present invention preferably causes the step S4 to include:
s4-1, when the second condition is satisfied but the first condition is not satisfied, the air conditioner continues to operate in the first rapid cooling mode for a first preset time (for example, 20 seconds), and after the first preset time, it is determined whether the second condition is still satisfied. When people are in the room but the room temperature does not meet the first condition, the air conditioner continues to operate for a period of time in the rapid cooling mode, and then whether people are in the room or not is judged.
And S4-2, if the second condition is still met after the first preset time, the air conditioner exits the first rapid cooling mode. Namely, the indoor people are judged again, and the air conditioner is directly quitted from the rapid cooling mode without considering the factor of the room temperature, so that the indoor people are prevented from catching a cold and catching a cold.
Preferably, in the step S4-2, after the air conditioner exits from the first rapid cooling mode, the air conditioner is not controlled to stably operate at the set temperature, but to operate at the temperature which is the longest previous air conditioner operation time and is stored in the air conditioner in a memory.
Further, the step S4-2 may further include: and after the first preset time, if the second condition is not met, further judging whether the first condition is met, operating in a second rapid cooling mode before the first condition is met, and exiting the second rapid cooling mode until the first condition is met. Namely, after a first preset time, judging to find that: the person in the room leaves. And at the moment, whether the room temperature meets the first condition is further judged, if not, the rapid cooling mode is continuously operated to lower the room temperature, so that the rapid cooling mode is ended as soon as possible to achieve the purpose of saving energy and enable the leaving people to return to the room again, and the user experience is improved. Preferably, the second rapid cooling mode with higher operation intensity is adopted to continue cooling, so as to achieve the aim of cooling more quickly and reduce the waiting time of the user.
Or in another way: if the second condition is not met after the first preset time and the second condition is judged to be not met again after the second preset time (such as 5 seconds), the air conditioner operates in the second rapid cooling mode and detects the position of the indoor door so as to adjust the direction of the air outlet of the air conditioner pointing to the door. That is, after the first preset time, a second preset time is passed, and if the person who leaves does not come back yet, it is reflected that the indoor temperature is still too high to meet the user requirement, so that the user still does not want to come back indoors (this is derived from the situation that no person exists in the two preset time periods, and is not based on the result of the room temperature detection). In this case, it is also preferable to use the second rapid cooling mode with higher operation intensity to achieve the cooling target more quickly and reduce the waiting time of the user. Preferably, the second preset time is less than the first preset time.
In addition, the air outlet direction of the whole air conditioner is close to the door (people leaving the room usually wait for the indoor cooling near the door) so as to accelerate the cooling speed near the door, so that a user can feel cool when the user is near the door or tries to enter the room again, and the user is willing to stay indoors, so that the second condition is met in the subsequent circulating judgment to trigger the exit of the rapid cooling mode, and the energy is saved.
In the present invention, it is preferable that the compressor, the expansion valve, and the fan of the air conditioner are all in the maximum operation state in the second rapid cooling mode. And in the first rapid cooling mode, the compressor, the expansion valve and the fan of the air conditioner are all in a large working state (higher than that of the air conditioner which stably operates according to the set temperature, but lower than that of the second rapid cooling mode).
Preferably, the air conditioner of the present invention emits a warning sound after exiting the first or second rapid cooling mode to remind the user that the user can enter the room.
As a second aspect of the present invention, there is provided an air-conditioning operation control device for implementing the above-described air-conditioning operation control method, the air-conditioning operation control device including:
the human body judging module is used for judging whether a person is in the room;
the room temperature detection module is used for detecting the current room temperature and judging whether the current room temperature is greater than the preset temperature;
and the operation mode control module is used for controlling the air conditioner to operate in a specified operation mode.
The specified operation mode includes: a first rapid cooling mode, a second rapid cooling mode, an operation mode according to a set temperature, a temperature operation mode with the longest previous air conditioner operation time, and the like.
As a third aspect of the present invention, there is provided an air conditioner including an indoor unit including the air conditioning operation control device described above.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. An air conditioner operation control method, characterized by comprising:
s1, judging whether a person is in the room or not after the air conditioner is started;
s2, if no person is judged to be in the room, the operation goes to S3;
s3, detecting the room temperature and judging whether the current room temperature is greater than the preset temperature; if so, controlling the air conditioner to operate in a first rapid cooling mode; if not, controlling the air conditioner to stably operate according to the set temperature;
further comprising after the step S3:
s4, when a first condition or a second condition is met, the air conditioner exits from the first rapid cooling mode;
the first condition is: detecting that the room temperature is less than 0.9 times of the preset temperature;
the second condition is: detecting that a person is in a room;
wherein the step S4 includes:
s4-1, when the second condition is met but the first condition is not met, the air conditioner continues to operate in the first rapid cooling mode for a first preset time, and whether the second condition is still met or not is judged after the first preset time;
and S4-2, if the second condition is still met after the first preset time, the air conditioner exits the first rapid cooling mode.
2. The air conditioner operation control method according to claim 1, wherein in the step S4-2, the air conditioner is operated at the temperature of the longest last air conditioner operation time memorized in the air conditioner after exiting the first rapid cooling mode.
3. The air conditioner operation control method as claimed in claim 1, wherein the step S4-2 further comprises: after the first preset time, if the second condition is not met, further judging whether the first condition is met, and operating in a second rapid cooling mode before the first condition is met until the second rapid cooling mode is exited after the first condition is met;
alternatively, the first and second electrodes may be,
if the second condition is not met after the first preset time and the second condition is judged to be not met again after the second preset time, the air conditioner operates in the second rapid cooling mode and detects the position of the indoor door so as to adjust the direction of the air outlet of the air conditioner pointing to the door;
the air conditioner operating intensity in the second rapid cooling mode is higher than that in the first rapid cooling mode.
4. The operation control method of an air conditioner according to claim 3, wherein in the second rapid cooling mode, a compressor, an expansion valve and a fan of the air conditioner are all in a maximum operation state.
5. The air conditioner operation control method as claimed in claim 3, wherein the second preset time is less than the first preset time.
6. An air conditioner operation control method as claimed in any one of claims 1 to 5, wherein said step S2 further includes: and if the indoor people are judged, adjusting the air outlet of the air conditioner to blow air in the direction pointing to the area where the people are located.
7. The operation control method of an air conditioner according to any one of claims 1 to 5, wherein the air conditioner makes a prompt sound after exiting the rapid cooling mode.
8. The air conditioner operation control method according to any one of claims 1 to 5, wherein the preset temperature is 30 ℃ or higher.
9. An air-conditioning operation control device for implementing the air-conditioning operation control method according to any one of claims 1 to 8, the air-conditioning operation control device comprising:
the human body judging module is used for judging whether a person is in the room;
the room temperature detection module is used for detecting the current room temperature and judging whether the current room temperature is greater than the preset temperature;
and the operation mode control module is used for controlling the air conditioner to operate in a specified operation mode.
10. An air conditioner characterized by comprising an indoor unit including the air conditioning operation control device according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910454730.1A CN110332663B (en) | 2019-05-29 | 2019-05-29 | Air conditioner operation control method and device and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910454730.1A CN110332663B (en) | 2019-05-29 | 2019-05-29 | Air conditioner operation control method and device and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110332663A CN110332663A (en) | 2019-10-15 |
| CN110332663B true CN110332663B (en) | 2020-12-15 |
Family
ID=68140475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910454730.1A Active CN110332663B (en) | 2019-05-29 | 2019-05-29 | Air conditioner operation control method and device and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110332663B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113465154A (en) * | 2021-04-26 | 2021-10-01 | 青岛海尔空调器有限总公司 | Air conditioner air guide control method and device and air conditioning system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100705667B1 (en) * | 2005-11-01 | 2007-04-09 | 주식회사 대우일렉트로닉스 | Apparatus and method for controlling suction air of support blower for air conditioner |
| CN101251290A (en) * | 2008-03-19 | 2008-08-27 | 珠海格力电器股份有限公司 | Control method for quick refrigeration/heat-production of air conditioner |
| CN102759173A (en) * | 2011-04-26 | 2012-10-31 | 珠海格力电器股份有限公司 | Method for controlling operation mode of air conditioner, and air conditioner |
| CN104501355A (en) * | 2014-12-02 | 2015-04-08 | 广东美的制冷设备有限公司 | Control method for air conditioner |
| CN104515254A (en) * | 2013-09-30 | 2015-04-15 | 海尔集团公司 | Air conditioning compressor frequency control method |
| CN108759014A (en) * | 2018-04-21 | 2018-11-06 | 奥克斯空调股份有限公司 | A kind of control method of air conditioner and air conditioner rapid temperature rise and drop |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0814626A (en) * | 1994-06-30 | 1996-01-19 | Tokyo Gas Co Ltd | Air conditioner system |
-
2019
- 2019-05-29 CN CN201910454730.1A patent/CN110332663B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100705667B1 (en) * | 2005-11-01 | 2007-04-09 | 주식회사 대우일렉트로닉스 | Apparatus and method for controlling suction air of support blower for air conditioner |
| CN101251290A (en) * | 2008-03-19 | 2008-08-27 | 珠海格力电器股份有限公司 | Control method for quick refrigeration/heat-production of air conditioner |
| CN102759173A (en) * | 2011-04-26 | 2012-10-31 | 珠海格力电器股份有限公司 | Method for controlling operation mode of air conditioner, and air conditioner |
| CN104515254A (en) * | 2013-09-30 | 2015-04-15 | 海尔集团公司 | Air conditioning compressor frequency control method |
| CN104501355A (en) * | 2014-12-02 | 2015-04-08 | 广东美的制冷设备有限公司 | Control method for air conditioner |
| CN108759014A (en) * | 2018-04-21 | 2018-11-06 | 奥克斯空调股份有限公司 | A kind of control method of air conditioner and air conditioner rapid temperature rise and drop |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110332663A (en) | 2019-10-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110500743B (en) | Control method of kitchen air conditioner, air conditioner and computer readable storage medium | |
| CN107143967B (en) | Control method of one-to-many photovoltaic ice making cold storage air conditioner | |
| WO2019223301A1 (en) | Air conditioner control method and control device and air conditioner using the method | |
| CN104315659A (en) | Intelligent voice-control air conditioning system | |
| JP2008256260A (en) | Air conditioning system and air-conditioning management device | |
| WO2019075821A1 (en) | Method for controlling air conditioner in multimedia classroom | |
| CN111207485B (en) | Anti-freezing control method and device, storage medium and water multi-connected system | |
| CN111306721A (en) | Control method of air conditioner and air conditioner | |
| JP2000088316A (en) | Equipment for determining set temperature, air conditioning equipment and program recording medium | |
| US9816721B2 (en) | System and method for optimizing energy consumption in an HVAC unit by minimizing chiller activity | |
| CN110332663B (en) | Air conditioner operation control method and device and air conditioner | |
| EP3686501B1 (en) | Heat exchanging type ventilation system | |
| JP5619056B2 (en) | Air conditioner | |
| CN114963426A (en) | Constant-temperature dehumidification method and system for air conditioner, storage medium and air conditioner | |
| WO2024045900A1 (en) | Air conditioner and cooling control method therefor | |
| CN105202693A (en) | RF (radio frequency) remote control method for air conditioner | |
| KR20000034166A (en) | Power saving method of air conditioner | |
| JP2012007887A (en) | Air conditioning system and air-conditioning management device | |
| CN113883654A (en) | Control method of air conditioner, air conditioner and computer readable storage medium | |
| CN113251567A (en) | Heating control method and device and air conditioning system | |
| CN104949272A (en) | Bluetooth remote controller and air conditioner remote control method | |
| CN105091244A (en) | Bluetooth remote control method for air conditioner | |
| CN114251806B (en) | Air conditioner control method and device, air conditioner and readable storage medium | |
| CN111102686A (en) | Air conditioner defrosting control method, computer readable storage medium and air conditioner | |
| CN115247862B (en) | Operation control method for air conditioner and electric heater |
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 |