Method, apparatus, and air conditioner for controlling an air conditioner

By using temperature sensors and solenoid two-way valves to adjust the refrigerant circulation in the air conditioner, the frequent start-stop problem caused by excessive cooling output by the air conditioner is solved, stable temperature control is achieved, and user comfort is improved.

CN115143606BActive Publication Date: 2025-07-18QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +2
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Patent Information

Application Number
CN202210669426.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-06-14
Publication Date
2025-07-18
Estimated Expiration
2042-06-14

AI Technical Summary

Technical Problem

In the cooling mode, the air conditioner quickly decreases the indoor temperature and starts and stops frequently due to excessive cooling capacity output, resulting in large fluctuations in the indoor temperature and cannot meet the user's comfort requirements.

Method used

By obtaining the ambient temperature of the air conditioner room and the compressor operating frequency, the detection temperature collected by the first and second temperature sensors is used to control the solenoid two-way valve to adjust the refrigerant circulation to avoid frequent start and stop of the compressor.

Benefits of technology

Effectively adjust the air conditioner cooling output to avoid frequent start and stop when the indoor temperature drops rapidly, and improve user environment comfort.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the technical field of air conditioner control, and discloses a method for controlling an air conditioner, including: obtaining the ambient temperature in the room where the air conditioner is located and the current operating frequency of the air conditioner compressor; when the ambient temperature meets the preset temperature condition and the current operating frequency meets the preset frequency condition, acquiring a first detected temperature collected by a first temperature sensor and a second detected temperature collected by a second temperature sensor; and controlling a first electromagnetic two-way valve or a second electromagnetic two-way valve according to the first detected temperature and the second detected temperature. With this solution, when the cooling capacity output by the air conditioner exceeds the indoor demand, before the compressor stops, the refrigerant circulation amount of the air conditioner can be adjusted to reduce the cooling capacity output of the air conditioner to the room where it is located, avoiding frequent start-stop of the compressor when the indoor temperature rapidly decreases and the large indoor temperature fluctuation caused thereby, and meeting the user's comfort requirement for the environment. The present application also discloses a device for controlling an air conditioner and an air conditioner.
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Description

Technical Field

[0001] This application relates to the technical field of air conditioner control, for example, to a method, a device, and an air conditioner for controlling an air conditioner. Background Art

[0002] Currently, with the gradual improvement of users' living standards, air conditioners have gradually entered thousands of households. At present, while users pay attention to the cooling and heating capabilities of air conditioners, they also have higher and higher requirements for their comfort.

[0003] At present, when the air conditioner operates in the cooling mode in summer, due to a large temperature difference between the indoor temperature and the set temperature of the air conditioner, the air conditioner will operate in the corresponding operation mode to output cold air to the room where the air conditioner is located. At this time, due to the large cold air output of the air conditioner, the indoor temperature of the room where the air conditioner is located will also rapidly decrease. During the process of the air conditioner outputting cold air to its indoor space, there will be a situation where the cold air output is excessive. However, since the indoor temperature of the room where the air conditioner is located has not reached near the set temperature, the cold air output of the air conditioner will not decrease. When the indoor temperature of the room where the air conditioner is located approaches the set temperature, due to the rapid cooling in the previous stage, the temperature-reaching and shutdown control logic of the air conditioner will be satisfied in a short time, and the air conditioner compressor will directly switch from medium-high frequency operation to the shutdown mode to prevent the indoor temperature of the room where the air conditioner is located from continuing to decrease. However, after the air conditioner compressor stops operating, the indoor temperature of the room where the air conditioner is located will rise rapidly again. Under certain conditions, the air conditioner compressor will start again and resume medium-high frequency operation. This will cause the air conditioner to start and stop frequently, and the indoor temperature of the room where the air conditioner is located will also fluctuate, unable to meet the user's requirements for environmental comfort. Summary of the Invention

[0004] To provide a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. This summary is not a comprehensive review, nor is it intended to identify key / important elements or delineate the scope of protection of these embodiments. Instead, it serves as a preface to the subsequent detailed description.

[0005] Embodiments of the present disclosure provide a method, a device, and an air conditioner for controlling an air conditioner to avoid frequent start and stop of the compressor when the indoor temperature rapidly decreases and the resulting large fluctuations in the indoor temperature.

[0006] In some embodiments, the method for controlling an air conditioner includes: obtaining the ambient temperature in the room where the air conditioner is located and the current operating frequency of the air conditioner compressor; when the ambient temperature meets a preset temperature condition and the current operating frequency meets a preset frequency condition, obtaining a first detected temperature collected by a first temperature sensor and a second detected temperature collected by a second temperature sensor; and controlling a first electromagnetic two-way valve or a second electromagnetic two-way valve according to the first detected temperature and the second detected temperature to reduce the cooling capacity of the air conditioner.

[0007] In some embodiments, the method for controlling an air conditioner includes: determining that the ambient temperature meets a preset temperature condition when the ambient temperature is not higher than the set temperature of the air conditioner for a first preset time period and the set temperature of the air conditioner changes dynamically within a second preset time period; wherein the first preset time period is lower than the second preset time period.

[0008] In some embodiments, the method for controlling an air conditioner includes: when the duration that the current operating frequency reaches a frequency threshold exceeds a second preset duration, determining that the current operating frequency satisfies a preset frequency condition.

[0009] In some embodiments, the method for controlling an air conditioner includes: comparing a first detected temperature and a second detected temperature to obtain a comparison result; and controlling a first electromagnetic two-way valve or a second electromagnetic two-way valve according to the comparison result.

[0010] In some embodiments, the method for controlling an air conditioner includes: when a comparison result shows that the first detected temperature is lower than the second detected temperature, controlling the air conditioner to close a first electromagnetic two-way valve.

[0011] In some embodiments, the method for controlling an air conditioner includes: when the comparison result is that the first detected temperature is greater than the second detected temperature, controlling the air conditioner to close the second electromagnetic two-way valve.

[0012] In some embodiments, the method for controlling an air conditioner includes: obtaining current cooling demand information in a room where the air conditioner is located; and controlling the air conditioner to execute an adjustment strategy that matches the cooling demand information.

[0013] In some embodiments, the device for controlling an air conditioner includes: an acquisition module, configured to obtain the ambient temperature of the room where the air conditioner is located and the current operating frequency of the air conditioner compressor; an acquisition module, configured to obtain a first detection temperature collected by a first temperature sensor and a second detection temperature collected by a second temperature sensor when the ambient temperature meets a preset temperature condition and the current operating frequency meets a preset frequency condition; a control module, configured to control the first electromagnetic two-way valve or the second electromagnetic two-way valve according to the first detection temperature and the second detection temperature to reduce the cooling capacity of the air conditioner.

[0014] In some embodiments, the apparatus for controlling an air conditioner includes: a processor and a memory storing program instructions, and the processor is configured to execute the aforementioned method for controlling an air conditioner when running the program instructions.

[0015] In some embodiments, the air conditioner includes: a device for controlling the air conditioner as described above.

[0016] The method, device, and air conditioner for controlling an air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects: obtaining the ambient temperature in the room where the air conditioner is located and the current operating frequency of the air conditioner compressor; when the ambient temperature meets the preset temperature condition and the current operating frequency meets the preset frequency condition, obtaining the first detected temperature collected by the first temperature sensor and the second detected temperature collected by the second temperature sensor; controlling the first electromagnetic two-way valve or the second electromagnetic two-way valve according to the first detected temperature and the second detected temperature to reduce the cooling capacity of the air conditioner. With this solution, when the cooling output of the air conditioner exceeds the indoor demand, before the compressor stops, the refrigerant circulation amount of the air conditioner can be adjusted to reduce the cooling output of the air conditioner in the room where it is located, avoiding frequent start and stop of the compressor when the indoor temperature drops rapidly and the large indoor temperature fluctuations caused thereby, and meeting the user's comfort requirements for the environment.

[0017] The above general description and the following description are only exemplary and explanatory and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] One or more embodiments are exemplarily illustrated by the corresponding drawings. These exemplary illustrations and the drawings do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation, and wherein:

[0019] Figure 1 is a schematic structural diagram of an air conditioner provided by the embodiments of the present disclosure;

[0020] Figure 2 is a schematic diagram of a method for controlling an air conditioner provided by the embodiments of the present disclosure;

[0021] Figure 3 is a schematic diagram of a method for controlling an electromagnetic two-way valve provided by the embodiments of the present disclosure;

[0022] Figure 4 is a schematic diagram of another method for controlling an air conditioner provided by the embodiments of the present disclosure;

[0023] Figure 5 is a schematic diagram of a device for controlling an air conditioner provided by the embodiments of the present disclosure;

[0024] Figure 6 is a schematic diagram of another device for controlling an air conditioner provided by the embodiments of the present disclosure.

[0025] REFERENCE SIGNS:

[0026] 1: Compressor; 2: Indoor heat exchanger; 3: Stop valve; 4: Throttling device; 5: First temperature sensor; 6: Second temperature sensor; 7: First electromagnetic two-way valve; 8: Second electromagnetic two-way valve; 9: Outdoor heat exchanger; 10: Four-way valve. Detailed implementation manners

[0027] In order to more comprehensively understand the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference and illustration purposes only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of explanation, multiple details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be shown in a simplified manner to simplify the drawings.

[0028] In the description of the embodiments of the present disclosure, the terms "first", "second", etc. in the specification, claims and the above-mentioned drawings are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to implement the embodiments of the present disclosure described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0029] Unless otherwise specified, the term "plurality" means two or more.

[0030] In the embodiments of the present disclosure, the character " / " indicates that the objects before and after are in an "or" relationship. For example, A / B means: A or B.

[0031] The term "and / or" is a description of the associated relationship of an object and indicates that three relationships can exist. For example, A and / or B means: A or B, or, A and B these three relationships.

[0032] The term "corresponding" can refer to an associated relationship or a binding relationship. A corresponding to B means that there is an associated relationship or a binding relationship between A and B.

[0033] In the embodiments of the present disclosure, an intelligent household appliance device refers to a household appliance product formed after introducing microprocessor, sensor technology, and network communication technology into household appliance devices, and has the characteristics of intelligent control, intelligent perception, and intelligent application. The operation process of intelligent household appliance devices often depends on the application and processing of modern technologies such as the Internet of Things, the Internet, and electronic chips. For example, an intelligent household appliance device can be connected to an electronic device to realize remote control and management of the intelligent household appliance device by a user.

[0034] In the embodiments of the present disclosure, a terminal device refers to an electronic device with wireless connection capabilities. The terminal device can communicate with the intelligent home appliance devices as described above by connecting to the Internet, or can directly communicate with the intelligent home appliance devices as described above through methods such as Bluetooth and Wi-Fi. In some embodiments, the terminal device is, for example, a mobile device, a computer, or an in-vehicle device built into a hovering vehicle, etc., or any combination thereof. The mobile device can, for example, include a mobile phone, a smart home device, a wearable device, a smart mobile device, a virtual reality device, etc., or any combination thereof. Among them, the wearable device can, for example, include a smart watch, a smart bracelet, a pedometer, etc.

[0035] Figure 1 is a schematic structural diagram of an air conditioner provided by an embodiment of the present disclosure; in combination with Figure 1 As shown, the embodiments of the present disclosure provide an air conditioner. Specifically, the air conditioner includes a first refrigerant flow path and a second refrigerant flow path. Among them, a first temperature sensor 5 and a first electromagnetic two-way valve 7 for regulating the refrigerant flow rate are sequentially arranged on the outdoor heat exchanger side of the first refrigerant flow path, and a second temperature sensor 6 and a second electromagnetic two-way valve 8 for regulating the refrigerant flow rate are also sequentially arranged on the outdoor heat exchanger side of the second refrigerant flow path. Here, the air conditioner further includes a compressor 1, a four-way valve 10, a stop valve 3, an indoor heat exchanger 2, and a throttling device 4 that are sequentially connected. The first electromagnetic two-way valve 7 and the second electromagnetic two-way valve 8 are both connected to the outdoor heat exchanger 9, and the other side of the outdoor heat exchanger 9 is connected to the four-way valve 10.

[0036] Figure 2 is a schematic diagram of a method for controlling an air conditioner provided by an embodiment of the present disclosure; in combination with Figure 2 As shown, the embodiments of the present disclosure provide a method for controlling an air conditioner, including:

[0037] S21, the air conditioner obtains the ambient temperature in the room where it is located and the current operating frequency of the air conditioner compressor.

[0038] S22, when the ambient temperature meets the preset temperature condition and the current operating frequency meets the preset frequency condition, the air conditioner obtains the first detected temperature collected by the first temperature sensor and the second detected temperature collected by the second temperature sensor.

[0039] S23, the air conditioner controls the first electromagnetic two-way valve or the second electromagnetic two-way valve according to the first detected temperature and the second detected temperature to reduce the cooling capacity of the air conditioner.

[0040] In this solution, the air conditioner can collect the ambient temperature in the room where the air conditioner is located through its associated temperature sensor, and obtain the current operating frequency of the air conditioner compressor through its associated detection element. In this way, accurate acquisition of the ambient temperature and the compressor operating frequency can be achieved.

[0041] Further, after the air conditioner obtains the ambient temperature in the room where it is located and the current operating frequency of the air conditioner compressor, it can determine whether the ambient temperature meets the preset temperature condition and whether the current operating frequency meets the preset frequency condition. Specifically, it can be determined that the ambient temperature meets the preset temperature condition when the duration during which the ambient temperature is not higher than the set temperature of the air conditioner lasts for a first preset duration and the set temperature of the air conditioner changes dynamically within a second preset duration; it can be determined that the current operating frequency meets the preset frequency condition when the duration during which the current operating frequency reaches the frequency threshold exceeds the second preset duration. Thus, when the ambient temperature meets the preset temperature condition and the current operating frequency meets the preset frequency condition, the air conditioner obtains the first detected temperature collected by the first temperature sensor and the second detected temperature collected by the second temperature sensor. In this way, by judging whether the ambient temperature meets the preset temperature condition and whether the current operating frequency meets the preset frequency condition, the acquisition timing of the first detected temperature and the second detected temperature can be determined, providing an accurate data basis for the intelligent control process of the air conditioner.

[0042] Further, the air conditioner can combine the first detected temperature and the second detected temperature to control the first electromagnetic two-way valve or the second electromagnetic two-way valve to reduce the cooling capacity of the air conditioner.

[0043] By using the method for controlling an air conditioner provided by the embodiments of the present disclosure, the ambient temperature in the room where the air conditioner is located and the current operating frequency of the air conditioner compressor are obtained; when the ambient temperature meets the preset temperature condition and the current operating frequency meets the preset frequency condition, the first detected temperature collected by the first temperature sensor and the second detected temperature collected by the second temperature sensor are obtained; according to the first detected temperature and the second detected temperature, the first electromagnetic two-way valve or the second electromagnetic two-way valve is controlled to reduce the cooling capacity of the air conditioner. With this solution, when the cooling capacity output by the air conditioner exceeds the indoor demand, before the compressor stops, by adjusting the refrigerant circulation amount of the air conditioner, the cooling capacity output of the air conditioner to the room where it is located can be reduced, avoiding the frequent start and stop of the compressor when the indoor temperature drops rapidly and the large indoor temperature fluctuation caused thereby, and meeting the user's comfort requirement for the environment.

[0044] Optionally, the ambient temperature is determined to meet the preset temperature condition by the following method:

[0045] When the duration during which the ambient temperature is not higher than the set temperature of the air conditioner lasts for a first preset duration and the set temperature of the air conditioner changes dynamically within a second preset duration, the air conditioner determines that the ambient temperature meets the preset temperature condition.

[0046] In this solution, the first preset duration is shorter than the second preset duration. As an example, the first preset duration can be 30 seconds, and the second preset duration can be 1 minute. In this way, when the duration for which the ambient temperature does not exceed the set temperature of the air conditioner lasts for 30 seconds and the set temperature of the air conditioner changes dynamically within 1 minute, the ambient temperature can be more accurately determined to meet the preset temperature condition.

[0047] Optionally, the following method is used to determine that the current operating frequency meets the preset frequency condition:

[0048] When the duration for which the current operating frequency reaches the frequency threshold exceeds the second preset duration, the air conditioner determines that the current operating frequency meets the preset frequency condition.

[0049] In this solution, the frequency threshold is the minimum allowable operating frequency of the compressor under the current temperature condition. The second preset duration can be 1 minute. In this way, when the duration for which the current operating frequency reaches the minimum allowable operating frequency of the compressor under the current temperature condition exceeds 1 minute, it can be more accurately determined that the current operating frequency meets the preset frequency condition.

[0050] Figure 3 It is a schematic diagram of a method for controlling an electromagnetic two-way valve provided by an embodiment of the present disclosure; in combination with Figure 3 As shown, optionally, in S23, the air conditioner controls the first electromagnetic two-way valve or the second electromagnetic two-way valve according to the first detected temperature and the second detected temperature to reduce the cooling capacity of the air conditioner, including:

[0051] S31, the air conditioner compares the first detected temperature and the second detected temperature to obtain a comparison result.

[0052] S32, the air conditioner controls the first electromagnetic two-way valve or the second electromagnetic two-way valve according to the comparison result.

[0053] In this solution, the air conditioner can compare the first detected temperature and the second detected temperature to obtain a comparison result. Here, the comparison result can include that the first detected temperature is less than the second detected temperature or the first detected temperature is greater than the second detected temperature. In this way, after obtaining the comparison result, the air conditioner can control the first electromagnetic two-way valve or the second electromagnetic two-way valve in combination with the comparison result. With this solution, the first electromagnetic two-way valve or the second electromagnetic two-way valve can be more accurately controlled in combination with the comparison result to effectively reduce the cooling capacity of the air conditioner.

[0054] Optionally, in S32, the air conditioner controls the first electromagnetic two-way valve according to the comparison result, including:

[0055] When the comparison result is that the first detected temperature is less than the second detected temperature, the air conditioner controls to close the first electromagnetic two-way valve.

[0056] In this solution, when the comparison result is that the first detected temperature is lower than the second detected temperature, the air conditioner controls to close the first two-way solenoid valve. With this solution, the air conditioner can quickly adjust its cooling capacity output in a short time by controlling to close the first two-way solenoid valve, avoiding frequent startup of the air conditioner caused by continuously rapid temperature drop. In another example, when the comparison result is that the first detected temperature is lower than the second detected temperature, the air conditioner can also be controlled to reduce the valve opening of the first two-way solenoid valve at a first preset speed. Here, the first preset speed can be preset in combination with the refrigeration capacity of the air conditioner. In this way, the cooling capacity output of the air conditioner can also be adjusted evenly, effectively reducing the probability of frequent startup of the air conditioner. In an optimized solution, when the comparison result is that the first detected temperature is lower than the second detected temperature, the air conditioner can also be controlled to reduce the valve opening of the first two-way solenoid valve at a second preset speed while increasing the valve opening of the second two-way solenoid valve at a third preset speed. Here, the second preset speed and the third preset speed can be preset in combination with the refrigeration capacity of the air conditioner. In this way, the cooling capacity output of the air conditioner can be reduced by changing the refrigerant variation in different refrigerant flow paths, further reducing the probability of frequent startup of the air conditioner.

[0057] Optionally, in S32, the air conditioner controls the second two-way solenoid valve according to the comparison result, including:

[0058] When the comparison result is that the first detected temperature is higher than the second detected temperature, the air conditioner controls to close the second two-way solenoid valve.

[0059] In this solution, when the comparison result is that the first detected temperature is higher than the second detected temperature, the air conditioner controls to close the second two-way solenoid valve. With this solution, the air conditioner can quickly adjust its cooling capacity output in a short time by controlling to close the second two-way solenoid valve, avoiding frequent startup of the air conditioner caused by continuously rapid temperature drop. In another example, when the comparison result is that the first detected temperature is higher than the second detected temperature, the air conditioner can also be controlled to reduce the valve opening of the second two-way solenoid valve at a fourth preset speed. Here, the fourth preset speed can be preset in combination with the refrigeration capacity of the air conditioner. In this way, the cooling capacity output of the air conditioner can also be adjusted evenly, effectively reducing the probability of frequent startup of the air conditioner. In an optimized solution, when the comparison result is that the first detected temperature is higher than the second detected temperature, the air conditioner can also be controlled to reduce the valve opening of the second two-way solenoid valve at a fifth preset speed while increasing the valve opening of the first two-way solenoid valve at a sixth preset speed. Here, the fifth preset speed and the sixth preset speed can be preset in combination with the refrigeration capacity of the air conditioner. In this way, the cooling capacity output of the air conditioner can be reduced by changing the refrigerant variation in different refrigerant flow paths, further reducing the probability of frequent startup of the air conditioner.

[0060] Figure 4 is another schematic diagram of a method for controlling an air conditioner provided by an embodiment of the present disclosure; in combination with Figure 4 as shown, optionally, after controlling the first electromagnetic two-way valve or the second electromagnetic two-way valve, it further includes:

[0061] S41, the air conditioner obtains the current cooling demand information of the room where it is located.

[0062] S42, the air conditioner controls itself to execute an adjustment strategy that matches the cooling demand information.

[0063] In this solution, the air conditioner can obtain the current cooling demand information of the room where it is located. Here, the cooling demand information includes: no cooling required, less cooling demand, and more cooling demand. Specifically, the air conditioner can obtain the current ambient temperature of the room where it is located. If the current ambient temperature ≤ the set temperature of the air conditioner + the first correction value, it is determined that the current cooling demand information of the room where the air conditioner is located is no cooling required; if the current ambient temperature ≥ the set temperature of the air conditioner + the second correction value, it is determined that the current cooling demand information of the room where the air conditioner is located is less cooling demand; if the current ambient temperature of the room where it is located is obtained again 10 minutes later, and at this time the ambient temperature is still ≥ the set temperature of the air conditioner + the second correction value, it is determined that the current cooling demand information of the room where the air conditioner is located is more cooling demand. Among them, the first correction value is the set shutdown temperature compensation value. As an example, the first correction value can be 1.3. The second correction value is the set startup temperature compensation value. As an example, the second correction value can be 1.5. With this solution, it is possible to obtain more accurate cooling demand information by combining the current ambient temperature and the set temperature of the air conditioner. In addition, the air conditioner can also obtain the adjustment strategies respectively matched with different cooling demand information. As an example, if the cooling demand information is no cooling required, the adjustment strategy matched with it is to control the indoor fan of the air conditioner to operate at the current set wind speed while turning off its compressor and outdoor fan, and maintain the opening and closing states of the first electromagnetic two-way valve and the second electromagnetic two-way valve; if the cooling demand information is less cooling demand, the adjustment strategy matched with it is to control the air conditioner compressor to operate at the lowest operating frequency for 10 minutes while controlling the outdoor heat exchanger to be in a semi-operating state, and maintain the opening and closing states of the first electromagnetic two-way valve and the second electromagnetic two-way valve; if the cooling demand information is more cooling demand, the adjustment strategy matched with it is to control the air conditioner to operate in the cooling mode while opening the first electromagnetic two-way valve and the second electromagnetic two-way valve. With this solution, the air conditioner can determine a more accurate adjustment strategy of the air conditioner in combination with the cooling demand information, so as to meet the cooling demand of the room where the air conditioner is located when controlling the air conditioner to execute the adjustment strategy.

[0064] Figure 5 is a schematic diagram of a device for controlling an air conditioner provided by an embodiment of the present disclosure; in combination with Figure 5As shown in the figure, an embodiment of the present disclosure provides a device for controlling an air conditioner, including an obtaining module 51, an acquiring module 52, and a control module 53. The obtaining module 51 is configured to obtain the ambient temperature in the room where the air conditioner is located and the current operating frequency of the air conditioner compressor; the acquiring module 52 is configured to acquire the first detected temperature collected by the first temperature sensor and the second detected temperature collected by the second temperature sensor when the ambient temperature meets the preset temperature condition and the current operating frequency meets the preset frequency condition; the control module 53 is configured to control the first electromagnetic two-way valve or the second electromagnetic two-way valve according to the first detected temperature and the second detected temperature to reduce the cooling capacity of the air conditioner.

[0065] By using the device for controlling an air conditioner provided by the embodiment of the present disclosure, the ambient temperature in the room where the air conditioner is located and the current operating frequency of the air conditioner compressor are obtained; when the ambient temperature meets the preset temperature condition and the current operating frequency meets the preset frequency condition, the first detected temperature collected by the first temperature sensor and the second detected temperature collected by the second temperature sensor are acquired; the first electromagnetic two-way valve or the second electromagnetic two-way valve is controlled according to the first detected temperature and the second detected temperature to reduce the cooling capacity of the air conditioner. With this solution, when the cooling output of the air conditioner exceeds the indoor demand, before the compressor stops, the refrigerant circulation amount of the air conditioner can be adjusted to reduce the cooling output of the air conditioner in the room where it is located, avoiding frequent start and stop of the compressor when the indoor temperature drops rapidly and the large indoor temperature fluctuation caused thereby, and meeting the user's comfort requirement for the environment.

[0066] Figure 6 is a schematic diagram of another device for controlling an air conditioner provided by an embodiment of the present disclosure; in combination with Figure 6 As shown in the figure, an embodiment of the present disclosure provides a device for controlling an air conditioner, including a processor 100 and a memory 101. Optionally, the device may further include a communication interface 102 and a bus 103. Among them, the processor 100, the communication interface 102, and the memory 101 can complete communication with each other through the bus 103. The communication interface 102 can be used for information transmission. The processor 100 can call the logical instructions in the memory 101 to execute the method for controlling an air conditioner in the above embodiment.

[0067] In addition, when the logical instructions in the above memory 101 are implemented in the form of a software functional unit and sold or used as an independent product, they can be stored in a computer-readable storage medium.

[0068] The memory 101, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as the program instructions / modules corresponding to the methods in the embodiments of the present disclosure. The processor 100 executes functional applications and data processing by running the program instructions / modules stored in the memory 101, that is, implements the method for controlling the air conditioner in the above embodiments.

[0069] The memory 101 may include a program storage area and a data storage area. Among them, the program storage area can store an operating system and application programs required for at least one function; the data storage area can store data created according to the use of the terminal device, etc. In addition, the memory 101 may include high-speed random access memory and may also include non-volatile memory.

[0070] The embodiment of the present disclosure provides an air conditioner including the above device for controlling the air conditioner.

[0071] By using the air conditioner provided in the embodiment of the present disclosure, the ambient temperature in the room where the air conditioner is located and the current operating frequency of the air conditioner compressor are obtained; when the ambient temperature meets the preset temperature condition and the current operating frequency meets the preset frequency condition, the first detection temperature collected by the first temperature sensor and the second detection temperature collected by the second temperature sensor are obtained; according to the first detection temperature and the second detection temperature, the first electromagnetic two-way valve or the second electromagnetic two-way valve is controlled to reduce the cooling capacity of the air conditioner. With this solution, when the cooling output of the air conditioner exceeds the indoor demand, before the compressor stops, the refrigerant circulation amount of the air conditioner can be adjusted to reduce the cooling output of the air conditioner in the room where it is located, avoiding frequent start and stop of the compressor when the indoor temperature drops rapidly and the large indoor temperature fluctuation caused thereby, and meeting the user's comfort requirements for the environment.

[0072] The embodiment of the present disclosure provides a computer-readable storage medium storing computer-executable instructions, and the computer-executable instructions are set to execute the above method for controlling the air conditioner.

[0073] The embodiment of the present disclosure provides a computer program product, the computer program product includes a computer program stored on a computer-readable storage medium, the computer program includes program instructions, and when the program instructions are executed by a computer, the computer is made to execute the above method for controlling the air conditioner.

[0074] The above computer-readable storage medium may be a transient computer-readable storage medium or a non-transient computer-readable storage medium.

[0075] The technical solution of the embodiments of the present disclosure can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiments of the present disclosure. The aforementioned storage medium may be a non-transitory storage medium, including: various media that can store program codes such as USB flash drives, mobile hard disks, read-only memories (ROMs), random access memories (RAMs), magnetic disks, or optical discs, or it may also be a transitory storage medium.

[0076] The above description and the drawings fully illustrate the embodiments of the present disclosure, enabling those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, process, and other changes. The embodiments only represent possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terms used in this application are only for describing the embodiments and are not used to limit the claims. As used in the description of the embodiments and the claims, unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" are intended to also include the plural forms. Similarly, as used in this application, the term "and / or" refers to any and all possible combinations including one or more of the associated listed items. Additionally, when used in this application, the term "comprise" and its variants "comprises" and / or "comprising" etc. mean the presence of the stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or groups of these. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of another identical element in the process, method, or device including the element. In this document, each embodiment may focus on the differences from other embodiments, and the same or similar parts among the embodiments may be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, the relevant parts may refer to the description of the method part.

[0077] Those skilled in the art will recognize that the units and algorithm steps of each example described in connection with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in hardware or software can depend on the specific application and design constraints of the technical solution. The skilled person can use different methods for each specific application to implement the described functions, but such implementation should not be considered to exceed the scope of the embodiments of the present disclosure. The skilled person can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0078] In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units can be merely a logical function division, and there can be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Additionally, the couplings or direct couplings or communication connections shown or discussed among each other can be through some interfaces, and the indirect couplings or communication connections of the devices or units can be in electrical, mechanical, or other forms. The units described as separate components can be or can not be physically separated, and the components shown as units can be or can not be physical units, that is, they can be located in one place or can be distributed to multiple network units. Some or all of the units can be selected according to actual needs to implement this embodiment. Additionally, in the embodiments of the present disclosure, the functional units can be integrated in one processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit.

[0079] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagram may represent a module, a segment of a program, or a portion of code, which contains one or more executable instructions for implementing the specified logical function. In some alternative implementations, the functions noted in the blocks may occur in a different order than noted in the accompanying drawings. For example, two consecutive blocks may in fact be executed substantially in parallel, or they may sometimes be executed in the reverse order, depending on the functions involved. In the description corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps may in fact be executed substantially in parallel, or they may sometimes be executed in the reverse order, depending on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified functions or actions, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A method for controlling an air conditioner, characterized in that, The air conditioner includes a first refrigerant flow path and a second refrigerant flow path. A first temperature sensor and a first solenoid two-way valve are sequentially arranged in the first refrigerant flow path, and a second temperature sensor and a second solenoid two-way valve are sequentially arranged in the second refrigerant flow path. The method includes: Obtain the ambient temperature in the room where the air conditioner is located and the current operating frequency of the air conditioner compressor; When the ambient temperature meets the preset temperature condition and the current operating frequency meets the preset frequency condition, obtain the first detected temperature collected by the first temperature sensor and the second detected temperature collected by the second temperature sensor; Control the first solenoid two-way valve or the second solenoid two-way valve according to the first detected temperature and the second detected temperature to reduce the cooling capacity of the air conditioner; The air conditioner obtains the current ambient temperature in the room where it is located; If the current ambient temperature ≤ the set temperature of the air conditioner + a first correction value, determine that the current cooling demand information in the room where the air conditioner is located is no cooling demand, and the first correction value is the set shutdown temperature compensation value; If the current ambient temperature ≥ the set temperature of the air conditioner + a second correction value, determine that the current cooling demand information in the room where the air conditioner is located is less cooling demand, and the second correction value is the set startup temperature compensation value; If the current ambient temperature in the room where it is located is obtained again, and at this time the ambient temperature ≥ the set temperature of the air conditioner + the second correction value, determine that the current cooling demand information in the room where the air conditioner is located is more cooling demand; Control the air conditioner to execute an adjustment strategy matching the cooling demand information; Among them, if the cooling demand information is no cooling demand, the matching adjustment strategy is to control the indoor fan of the air conditioner to operate at the current set wind speed while turning off its compressor and outdoor fan, and maintain the opening and closing states of the first solenoid two-way valve and the second solenoid two-way valve; if the cooling demand information is less cooling demand, the matching adjustment strategy is to control the air conditioner compressor to operate at the lowest operating frequency for a set duration while controlling the outdoor heat exchanger to be in a semi-operating state, and maintain the opening and closing states of the first solenoid two-way valve and the second solenoid two-way valve; if the cooling demand information is more cooling demand, the matching adjustment strategy is to control the air conditioner to operate in the cooling mode while opening the first solenoid two-way valve and the second solenoid two-way valve.

2. The method according to claim 1, wherein Determine that the ambient temperature meets the preset temperature condition in the following way: When the duration during which the ambient temperature is not higher than the set temperature of the air conditioner lasts for a first preset duration, and the set temperature of the air conditioner has a dynamic change within a second preset duration, determine that the ambient temperature meets the preset temperature condition; Among them, the first preset duration is lower than the second preset duration.

3. The method according to claim 1, characterized in that, Determine that the current operating frequency meets the preset frequency condition in the following way: When the duration during which the current operating frequency reaches the frequency threshold exceeds the second preset duration, determine that the current operating frequency meets the preset frequency condition.

4. The method according to claim 1, wherein The controlling the first solenoid two-way valve or the second solenoid two-way valve according to the first detected temperature and the second detected temperature includes: Compare the first detected temperature and the second detected temperature to obtain a comparison result; Control the first electromagnetic two-way valve or the second electromagnetic two-way valve according to the comparison result.

5. The method according to claim 4, characterized in that, The controlling the first electromagnetic two-way valve according to the comparison result includes: When the comparison result is that the first detected temperature is less than the second detected temperature, control the air conditioner to close the first electromagnetic two-way valve.

6. The method according to claim 4, characterized in that The controlling the second electromagnetic two-way valve according to the comparison result includes: When the comparison result is that the first detected temperature is greater than the second detected temperature, control the air conditioner to close the second electromagnetic two-way valve.

7. A device for controlling an air conditioner, characterized in that, The air conditioner includes a first refrigerant flow path and a second refrigerant flow path. A first temperature sensor and a first electromagnetic two-way valve are sequentially arranged in the first refrigerant flow path, and a second temperature sensor and a second electromagnetic two-way valve are sequentially arranged in the second refrigerant flow path; The device includes: An obtaining module, configured to obtain the ambient temperature in the room where the air conditioner is located and the current operating frequency of the air conditioner compressor; An acquiring module, configured to acquire the first detected temperature collected by the first temperature sensor and the second detected temperature collected by the second temperature sensor when the ambient temperature meets a preset temperature condition and the current operating frequency meets a preset frequency condition; A control module, configured to control the first electromagnetic two-way valve or the second electromagnetic two-way valve according to the first detected temperature and the second detected temperature to reduce the cooling capacity of the air conditioner; The air conditioner obtains the current ambient temperature in the room where it is located; If the current ambient temperature ≤ the set temperature of the air conditioner + the first correction value, it is determined that the current cooling demand information in the room where the air conditioner is located is no cooling demand, and the first correction value is the set shutdown temperature compensation value; If the current ambient temperature ≥ the set temperature of the air conditioner + the second correction value, it is determined that the current cooling demand information in the room where the air conditioner is located is less cooling demand, and the second correction value is the set startup temperature compensation value; If the current ambient temperature in the room where it is located is obtained again, and at this time the ambient temperature ≥ the set temperature of the air conditioner + the second correction value, it is determined that the current cooling demand information in the room where the air conditioner is located is more cooling demand; Control the air conditioner to execute an adjustment strategy matching the cooling demand information; Wherein, if the cooling demand information is no cooling demand, the matching adjustment strategy is to control the indoor fan of the air conditioner to run at the current set wind speed while turning off its compressor and outdoor fan, and maintain the opening and closing states of the first electromagnetic two-way valve and the second electromagnetic two-way valve; if the cooling demand information is less cooling demand, the matching adjustment strategy is to control the air conditioner compressor to run at the lowest operating frequency for a set duration while controlling the outdoor heat exchanger to be in a semi-operating state, and maintain the opening and closing states of the first electromagnetic two-way valve and the second electromagnetic two-way valve; if the cooling demand information is more cooling demand, the matching adjustment strategy is to control the air conditioner to run in the cooling mode while opening the first electromagnetic two-way valve and the second electromagnetic two-way valve.

8. A device for controlling an air conditioner, comprising a processor and a memory storing program instructions, characterized in that, The processor is configured to execute the method for controlling an air conditioner according to any one of claims 1 to 6 when running the program instructions.

9. An air conditioner, characterized in that, Comprising the device for controlling an air conditioner according to claim 7 or 8.

Citation Information

Patent Citations

  • Air conditioner control method and device and air conditioner unit with air conditioner control device

    CN108759009A

  • Air conditioning device

    CN113757816A