CN115711465A - Control method and device for wall-mounted air conditioner indoor unit and wall-mounted air conditioner indoor unit - Google Patents
Control method and device for wall-mounted air conditioner indoor unit and wall-mounted air conditioner indoor unit Download PDFInfo
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- CN115711465A CN115711465A CN202211349727.1A CN202211349727A CN115711465A CN 115711465 A CN115711465 A CN 115711465A CN 202211349727 A CN202211349727 A CN 202211349727A CN 115711465 A CN115711465 A CN 115711465A
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract
The invention provides a control method and device for a wall-mounted air conditioner indoor unit and the wall-mounted air conditioner indoor unit. The control method of the wall-mounted air conditioner indoor unit comprises the following steps: receiving a trigger signal of a heating mode of an indoor unit of the wall-mounted air conditioner and acquiring a set temperature of the indoor unit of the wall-mounted air conditioner; detecting the ambient temperature at the diagonal position of the indoor unit of the wall-mounted air conditioner and the temperature of a heat exchanger of the indoor unit of the wall-mounted air conditioner; judging whether the environmental temperature is less than the difference between the set temperature and the preset value or not, and judging whether the temperature of the heat exchanger is more than or equal to the preset thermal protection temperature or not; and if so, adjusting the posture of a transverse guide plate of the wall-mounted air conditioner indoor unit so as to cool a heat exchanger of the wall-mounted air conditioner indoor unit. According to the scheme provided by the invention, the thermal protection is started according to the actual condition on the premise that the indoor environment temperature is uniformly distributed, so that the indoor unit of the wall-mounted air conditioner is prevented from being easily and frequently started, the heating effect of the indoor unit of the wall-mounted air conditioner is ensured, and the comfort experience of a user is improved.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a control method and a control device for an indoor unit of a wall-mounted air conditioner and the indoor unit of the wall-mounted air conditioner.
Background
With the development of society and the increasing living standard of people, various air conditioning devices have become one of the indispensable electrical devices in people's daily life. Various air conditioning devices can help people to reach a temperature that can be adapted to when the ambient temperature is too high or too low.
The current air conditioning devices mainly include various types of air conditioners and fans, wherein the air conditioners may be classified into a vertical type, a wall-mounted type, a ceiling type, and the like according to the arrangement mode. The vertical air conditioner is mainly used in public places with large areas, such as living rooms, schools, hospitals and the like. Wall-mounted air conditioners are mainly used in indoor environments with a moderate area, such as bedrooms in homes.
In the process that the wall-mounted air conditioner indoor unit operates in the heating mode, hot air can automatically rise, so that local temperature above the wall-mounted air conditioner indoor unit is overheated sometimes, the wall-mounted air conditioner indoor unit is enabled to be under heat protection, and the wall-mounted air conditioner indoor unit stops heating to influence the heating effect. The existing wall-mounted air conditioner indoor unit usually opens the thermal protection easily and frequently, and the direct frequency reduction or the stop of heating by the method of opening the thermal protection can reduce the heating capacity and influence the temperature regulation of the indoor environment, thereby influencing the comfort level experience of users.
Disclosure of Invention
One object of the present invention is to provide a reasonably and effectively adjusting a wall-mounted air conditioner indoor unit operating in a heating mode, taking into account both the ambient temperature and the heat exchanger temperature.
A further object of the present invention is to effectively ensure the heating effect of the wall-mounted air conditioner indoor unit by turning on the thermal protection according to the actual conditions under the precondition that the indoor environment temperature is uniformly distributed.
Particularly, the invention provides a control method of an indoor unit of a wall-mounted air conditioner, which comprises the following steps: receiving a trigger signal of a heating mode of an indoor unit of the wall-mounted air conditioner and acquiring a set temperature of the indoor unit of the wall-mounted air conditioner; detecting the ambient temperature at the diagonal position of the indoor unit of the wall-mounted air conditioner and the temperature of a heat exchanger of the indoor unit of the wall-mounted air conditioner; judging whether the ambient temperature is less than the difference between the set temperature and the preset value or not, and judging whether the temperature of the heat exchanger is greater than or equal to the preset thermal protection temperature or not; and if so, adjusting the posture of a transverse guide plate of the wall-mounted air conditioner indoor unit so as to cool a heat exchanger of the wall-mounted air conditioner indoor unit.
Optionally, the step of adjusting the posture of the transverse guide plate of the wall-mounted air conditioner indoor unit comprises: and adjusting the posture of the transverse guide plate to enable the wall-mounted air conditioner indoor unit to blow air downwards.
Optionally, the step of adjusting the posture of the transverse guide plate of the wall-mounted air conditioner indoor unit further comprises the following steps: the rotating speed of an indoor fan of the wall-mounted air conditioner indoor unit is controlled to rise.
Optionally, the indoor unit of the wall-mounted air conditioner is controlled to start the thermal protection mode under the condition that the ambient temperature is greater than or equal to the difference between the set temperature and the preset value and the temperature of the heat exchanger is greater than or equal to the preset thermal protection temperature.
Optionally, the step of controlling the rotation speed of the indoor fan of the wall-mounted air conditioner to increase further comprises: and re-detecting the ambient temperature and the temperature of the heat exchanger, and controlling the indoor unit of the wall-mounted air conditioner to start a thermal protection mode under the condition that the ambient temperature is greater than or equal to the difference between the set temperature and the preset value and the temperature of the heat exchanger is greater than or equal to the preset thermal protection temperature.
Optionally, the step of controlling the wall-mounted air conditioner indoor unit to start the thermal protection mode comprises: and controlling the indoor unit of the wall-mounted air conditioner to be in a heating mode for a preset time.
Optionally, after the step of controlling the wall-mounted air conditioner indoor unit to turn off the heating mode for the preset time period, the method further includes: and re-detecting the temperature of the heat exchanger, and controlling the wall-mounted air conditioner indoor unit to re-start the heating mode under the condition that the temperature of the heat exchanger is less than the preset thermal protection temperature.
Optionally, in a case that the ambient temperature is less than the difference between the set temperature and the preset value, and the temperature of the heat exchanger is less than the preset thermal protection temperature; or under the conditions that the ambient temperature is greater than or equal to the difference between the set temperature and the preset value and the temperature of the heat exchanger is less than the preset thermal protection temperature, controlling the wall-mounted air conditioner indoor unit to keep the current heating mode unchanged.
According to another aspect of the present invention, there is provided a control device for an indoor unit of a wall-mounted air conditioner, comprising: the control program is used for realizing the control method of any one wall-mounted air conditioner indoor unit when being executed by the processor.
According to another aspect of the invention, the invention also provides a wall-mounted air conditioner indoor unit which is provided with the control device of the wall-mounted air conditioner indoor unit.
According to the control method and device for the wall-mounted air conditioner indoor unit and the wall-mounted air conditioner indoor unit, the trigger signal of the wall-mounted air conditioner indoor unit for starting the heating mode is received, the set temperature of the wall-mounted air conditioner indoor unit is obtained, the ambient temperature at the diagonal position of the wall-mounted air conditioner indoor unit and the temperature of the heat exchanger of the wall-mounted air conditioner indoor unit are detected, whether the ambient temperature is smaller than the difference between the set temperature and the preset value is judged, the temperature of the heat exchanger is larger than or equal to the preset heat protection temperature, and under the condition that the ambient temperature and the temperature of the heat exchanger are greater than or equal to the preset heat protection temperature, the posture of the transverse guide plate of the wall-mounted air conditioner indoor unit is adjusted to cool the heat exchanger of the wall-mounted air conditioner indoor unit, the wall-mounted air conditioner indoor unit operating in the heating mode can be reasonably and effectively adjusted by comprehensively considering the ambient temperature and the temperature of the heat exchanger, and the working reliability of the wall-mounted air conditioner indoor unit is improved.
Further, according to the control method and device for the wall-mounted air conditioner indoor unit and the wall-mounted air conditioner indoor unit, under the condition that the environmental temperature is smaller than the difference between the set temperature and the preset value and the temperature of the heat exchanger is greater than or equal to the preset heat protection temperature, the posture of the transverse guide plate is adjusted, downward air blowing of the wall-mounted air conditioner indoor unit is achieved, and the rotating speed of an indoor fan of the wall-mounted air conditioner indoor unit is controlled to rise; under the conditions that the environment temperature is smaller than the difference between the set temperature and the preset value and the temperature of the heat exchanger is smaller than the preset thermal protection temperature, or under the conditions that the environment temperature is larger than or equal to the difference between the set temperature and the preset value and the temperature of the heat exchanger is smaller than the preset thermal protection temperature, the wall-mounted air conditioner indoor unit is determined to keep the current heating mode unchanged; the difference between the set temperature and the preset value is achieved when the ambient temperature is larger than or equal to the difference between the set temperature and the preset value, and under the condition that the temperature of the heat exchanger is larger than or equal to the preset heat protection temperature, the heat protection mode of the wall-mounted air conditioner indoor unit is determined, the heat protection mode can be started according to the actual condition under the premise that the indoor ambient temperature is uniformly distributed, the wall-mounted air conditioner indoor unit is prevented from being easily and frequently started, the heating effect of the wall-mounted air conditioner indoor unit is effectively guaranteed, and the comfort level experience of a user is improved.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic view of a control method of an indoor unit of a wall-mounted air conditioner according to an embodiment of the present invention;
fig. 2 is a detailed flowchart of a control method of an indoor unit of a wall-mounted air conditioner according to an embodiment of the present invention;
fig. 3 is a schematic block diagram of a control device of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention; and
fig. 4 is a schematic view of the overall structure of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention.
Detailed Description
The embodiment firstly provides a control method of the wall-mounted air conditioner indoor unit, the wall-mounted air conditioner indoor unit operating in the heating mode can be reasonably and effectively adjusted by comprehensively considering the environment temperature and the heat exchanger temperature, and the working reliability of the wall-mounted air conditioner indoor unit is improved. Fig. 1 is a schematic diagram illustrating a method for controlling an indoor unit of a wall-mounted air conditioner according to an embodiment of the present invention. As shown in fig. 1, the method for controlling an indoor unit of a wall-mounted air conditioner may perform the following steps:
step S102, receiving a trigger signal of starting a heating mode of an indoor unit of the wall-mounted air conditioner and acquiring a set temperature of the indoor unit of the wall-mounted air conditioner;
step S104, detecting the ambient temperature at the diagonal position of the indoor unit of the wall-mounted air conditioner and the temperature of a heat exchanger of the indoor unit of the wall-mounted air conditioner;
step S106, judging whether the environmental temperature is less than the difference between the set temperature and the preset value or not, and the temperature of the heat exchanger is greater than or equal to the preset thermal protection temperature, if so, executing step S108;
and S108, adjusting the posture of a transverse guide plate of the wall-mounted air conditioner indoor unit so as to cool a heat exchanger of the wall-mounted air conditioner indoor unit.
In the above steps, step S102 receives the trigger signal for the wall-mounted air conditioner indoor unit to start the heating mode and obtains the set temperature of the wall-mounted air conditioner indoor unit, and specifically, the trigger signal for the wall-mounted air conditioner indoor unit to start the heating mode and the set temperature thereof can be obtained in various manners. For example, the information can be obtained through a remote controller, a display device, a voice device of the wall-mounted air conditioner indoor unit or a mobile terminal bound with the wall-mounted air conditioner indoor unit. The mobile terminal may be a smart device convenient for movement, such as a smart phone, a tablet computer, and the like. Receiving a trigger signal for starting the heating mode of the wall-mounted air conditioner indoor unit means that the wall-mounted air conditioner indoor unit starts to operate in the heating mode.
And S104, detecting the ambient temperature at the diagonal position of the indoor unit of the wall-mounted air conditioner and the temperature of a heat exchanger of the indoor unit of the wall-mounted air conditioner, wherein temperature sensors can be arranged at the diagonal position of the indoor unit of the wall-mounted air conditioner and the position of the heat exchanger, so that the ambient temperature and the temperature of the heat exchanger can be detected through the corresponding temperature sensors. The heat exchanger temperature refers to the temperature of a heat exchanger in the wall air conditioner indoor unit, which operates as a condenser in the case where the wall air conditioner indoor unit is operating in the heating mode.
It should be noted that, generally, the wall-mounted air conditioner indoor unit may be disposed on one wall of the indoor environment, and a temperature sensor for detecting the ambient temperature may be disposed on the other wall opposite to the wall-mounted air conditioner indoor unit. And, this temperature sensor and hanging air conditioner indoor set can be the diagonal position, and what this temperature sensor detected promptly is the ambient temperature of the position far away from hanging air conditioner indoor set. In a preferred embodiment, the temperature sensor, in addition to being located diagonally to the wall mounted air conditioner indoor unit, may be located slightly lower, i.e. it measures the ambient temperature at a higher location than that which is close to the wall mounted air conditioner indoor unit.
Since the generated hot air is automatically raised when the wall-mounted air conditioner indoor unit operates in the heating mode, the ambient temperature of the surrounding or upper area is easily raised, and the set temperature may be easily reached. But the whole temperature of the indoor environment may not meet the requirement, and whether the whole temperature distribution of the indoor environment is uniform can be accurately known by arranging the temperature sensor at the diagonal line of the indoor unit of the wall-mounted air conditioner, so that a foundation can be laid for accurately judging whether the indoor unit of the wall-mounted air conditioner is started for heat protection in the follow-up process.
Step S106 is to judge whether the ambient temperature is less than the difference between the set temperature and the preset value or not, and the temperature of the heat exchanger is greater than or equal to the preset heat protection temperature, and if the judgment result is yes, namely the ambient temperature is less than the difference between the set temperature and the preset value, and the temperature of the heat exchanger is greater than or equal to the preset heat protection temperature, step S108 is executed to adjust the posture of the transverse guide plate of the wall-mounted air conditioner indoor unit so as to cool the heat exchanger of the wall-mounted air conditioner indoor unit.
Because the heat protection is usually directly opened under the condition that the temperature of the heat exchanger reaches the preset heat protection temperature, the heat protection is easily and frequently opened, the heating quantity of the wall-mounted air conditioner indoor unit is reduced, and the heating effect of the wall-mounted air conditioner indoor unit is influenced. Some situations where thermal protection is turned on are often not necessary, for example, thermal protection due to insufficient heat circulation, where hot air circulates in the upper portion causing excessive local temperatures above the wall air conditioner indoor unit.
This embodiment is less than the difference between set temperature and the default at ambient temperature to under the condition of heat exchanger temperature more than or equal to the default thermal protection temperature, adjust the gesture of hanging air conditioner indoor unit's horizontal baffle, in order to cool down hanging air conditioner indoor unit's heat exchanger. Although the temperature of the heat exchanger reaches the preset heat protection temperature, the ambient temperature at the diagonal line of the indoor unit of the wall-mounted air conditioner does not reach the difference between the set temperature and the preset value, which indicates that the temperature distribution of the indoor environment is uneven, and the heat protection is not directly started due to the temperature rise of the heat exchanger caused by the upper circulation of hot air, but the posture of the transverse guide plate of the indoor unit of the wall-mounted air conditioner is adjusted, so that the temperature of the heat exchanger is reduced.
In a specific embodiment, the adjusting the posture of the transverse guide plate of the wall-mounted air conditioner indoor unit in step S108 may include: and adjusting the posture of the transverse guide plate to enable the wall-mounted air conditioner indoor unit to blow air downwards. The hanging air conditioner indoor unit realizes blowing downwards, can avoid a large amount of hot-air gathering in hanging air conditioner indoor unit top, and then avoids the hot-air to come the temperature rising that leads to the heat exchanger in heat exchanger department through the air intake, can effectively reduce the temperature of heat exchanger to can promote the hot-air abundant circulation in indoor environment, make the temperature distribution of indoor environment even. The error reason causing the opening of the thermal protection is eliminated, the necessity of the opening of the thermal protection is ensured, and the times and frequency of the opening of the thermal protection are effectively reduced, so that the heating quantity and the heating effect of the indoor unit of the wall-mounted air conditioner are ensured.
According to the control method of the wall-mounted air conditioner indoor unit, the trigger signal of the wall-mounted air conditioner indoor unit in the heating mode is received, the set temperature of the wall-mounted air conditioner indoor unit is obtained, the ambient temperature at the diagonal position of the wall-mounted air conditioner indoor unit and the temperature of the heat exchanger of the wall-mounted air conditioner indoor unit are detected, whether the ambient temperature is smaller than the difference between the set temperature and the preset value is judged, the temperature of the heat exchanger is larger than or equal to the preset heat protection temperature, and under the condition that the ambient temperature and the temperature of the heat exchanger are comprehensively considered, the posture of the transverse guide plate of the wall-mounted air conditioner indoor unit is adjusted, so that the heat exchanger of the wall-mounted air conditioner indoor unit in the heating mode can be reasonably and effectively adjusted, and the working reliability of the wall-mounted air conditioner indoor unit is improved.
In some optional embodiments, the wall-mounted air conditioner indoor unit can achieve a higher technical effect by further optimizing and configuring the above steps, and the following describes in detail the control method of the wall-mounted air conditioner indoor unit of this embodiment in combination with a description of an optional execution flow of this embodiment. Fig. 2 is a detailed flowchart of a method for controlling a wall-mounted air conditioner indoor unit according to an embodiment of the present invention, which may include the steps of:
step S202, receiving a trigger signal of the wall-mounted air conditioner indoor unit for starting a heating mode and acquiring a set temperature of the wall-mounted air conditioner indoor unit;
step S204, detecting the ambient temperature at the diagonal position of the indoor unit of the wall-mounted air conditioner and the temperature of a heat exchanger of the indoor unit of the wall-mounted air conditioner;
step S206, judging whether the environmental temperature is less than the difference between the set temperature and the preset value, and the temperature of the heat exchanger is greater than or equal to the preset thermal protection temperature, if so, executing step S208, otherwise, executing step S212;
s208, adjusting the posture of the transverse guide plate to enable the wall-mounted air conditioner indoor unit to blow air downwards so as to cool a heat exchanger of the wall-mounted air conditioner indoor unit;
step S210, controlling the rotating speed of an indoor fan of the wall-mounted air conditioner indoor unit to rise;
step S212, determining whether the ambient temperature is greater than or equal to the difference between the set temperature and the preset value, and the heat exchanger temperature is greater than or equal to the preset thermal protection temperature, if yes, performing step S214, otherwise, performing step S216;
step S214, controlling the wall-mounted air conditioner indoor unit to start a thermal protection mode;
step S216, determining whether the ambient temperature is less than the difference between the set temperature and the preset value, and the heat exchanger temperature is less than the preset thermal protection temperature, if yes, performing step S220, otherwise, performing step S218;
step S218, the environmental temperature is greater than or equal to the difference between the set temperature and the preset value, and the temperature of the heat exchanger is less than the preset thermal protection temperature;
and step S220, controlling the wall-mounted air conditioner indoor unit to keep the current heating mode unchanged.
In the above steps, step S202 and step S204 are first executed, a trigger signal for starting a heating mode of the wall-mounted air conditioner indoor unit is received, a set temperature of the wall-mounted air conditioner indoor unit is obtained, an ambient temperature at a diagonal position of the wall-mounted air conditioner indoor unit and a heat exchanger temperature of the wall-mounted air conditioner indoor unit are detected, then a difference between the ambient temperature and the set temperature and a preset value is compared, the heat exchanger temperature and a preset heat protection temperature are compared, and a working state of the wall-mounted air conditioner indoor unit is adjusted according to two comparison results.
Specifically, step S206 determines whether the ambient temperature is less than the difference between the set temperature and the preset value, and the heat exchanger temperature is greater than or equal to the preset thermal protection temperature, and if the determination result of step S206 is yes, that is, the ambient temperature is less than the difference between the set temperature and the preset value, and the heat exchanger temperature is greater than or equal to the preset thermal protection temperature, step S208 is executed to adjust the posture of the transverse guide plate, so that the wall-mounted air conditioner indoor unit blows air downwards to cool the heat exchanger of the wall-mounted air conditioner indoor unit.
In this case, although the temperature of the heat exchanger reaches the preset thermal protection temperature, the ambient temperature at the diagonal of the wall-mounted air conditioner indoor unit does not reach the difference between the preset temperature and the preset value, which indicates that the temperature distribution of the indoor environment is not uniform, and the heat protection is not directly started because the temperature of the heat exchanger rises due to the upper circulation of hot air, but the posture of the transverse guide plate is adjusted, so that the wall-mounted air conditioner indoor unit can blow downwards to cool the heat exchanger of the wall-mounted air conditioner indoor unit.
The indoor unit of the wall-mounted air conditioner can blow air downwards, a large amount of hot air can be prevented from being gathered above the indoor unit of the wall-mounted air conditioner, the hot air is prevented from rising to the temperature of the heat exchanger through the air inlet, the temperature of the heat exchanger can be effectively reduced, the hot air can be promoted to circulate fully in the indoor environment, and the temperature of the indoor environment is enabled to be distributed uniformly.
After the posture of the transverse guide plate of the wall-mounted air conditioner indoor unit is adjusted in step S208, step S210 may be further performed: the rotating speed of an indoor fan of the wall-mounted air conditioner indoor unit is controlled to rise. The air flow rate is increased by increasing the rotating speed of the indoor fan, so that the air flow of the indoor environment is accelerated, the uniform temperature distribution can be promoted, and the temperature of the heat exchanger is reduced. The error reason causing the opening of the thermal protection is eliminated, the necessity of the opening of the thermal protection is ensured, and the times and frequency of the opening of the thermal protection are effectively reduced, so that the heating quantity and the heating effect of the indoor unit of the wall-mounted air conditioner are ensured.
If the determination result in step S206 is "no", step S212 is executed to determine whether the ambient temperature is greater than or equal to the difference between the preset temperature and the preset value, and the heat exchanger temperature is greater than or equal to the preset thermal protection temperature. And if the determination result in the step S212 is yes, that is, the ambient temperature is greater than or equal to the difference between the set temperature and the preset value, and the temperature of the heat exchanger is greater than or equal to the preset thermal protection temperature, the step S214 is executed to control the wall-mounted air conditioner indoor unit to start the thermal protection mode. Under the condition, the temperature of the heat exchanger reaches the preset thermal protection temperature, the ambient temperature at the diagonal line of the indoor unit of the wall-mounted air conditioner also reaches the difference between the set temperature and the preset value, which shows that the temperature distribution of the indoor environment is uniform, and the temperature of the heat exchanger is not increased due to the upper circulation of hot air, so that the indoor unit of the wall-mounted air conditioner can be controlled to start a thermal protection mode, and the situation that thermal protection is necessary to be started belongs to at the moment.
It should be noted that, after the rotation speed of the indoor fan of the wall-mounted air conditioner indoor unit is controlled to be increased in step S210, the ambient temperature and the temperature of the heat exchanger may be detected again, and the wall-mounted air conditioner indoor unit is controlled to start the thermal protection mode when the ambient temperature is greater than or equal to the difference between the set temperature and the preset value and the temperature of the heat exchanger is greater than or equal to the preset thermal protection temperature. That is to say, if the condition of opening the thermal protection is achieved after the indoor unit of the wall-mounted air conditioner blows air downwards and the rotating speed of the indoor fan is increased to promote the temperature distribution to be uniform and reduce the temperature of the heat exchanger, the opening thermal protection mode of the indoor unit of the wall-mounted air conditioner can be controlled.
If after the indoor unit of the wall-mounted air conditioner blows downwards and the rotating speed of the indoor fan is increased to promote the temperature distribution to be uniform and reduce the temperature of the heat exchanger, the ambient temperature is greater than or equal to the difference between the set temperature and the preset value, and the temperature of the heat exchanger is smaller than the preset thermal protection temperature, namely, under the condition that the indoor ambient temperature is uniformly distributed, the temperature of the heat exchanger does not reach the preset thermal protection temperature, and at the moment, the thermal protection is prevented from being opened due to the fact that the thermal protection opening condition is not reached.
In the case that the determination result in the step S212 is no, step S216 is executed to determine whether the ambient temperature is less than the difference between the set temperature and the preset value, and the heat exchanger temperature is less than the preset thermal protection temperature. And if the judgment result in the step S216 is yes, that is, the ambient temperature is less than the difference between the set temperature and the preset value, and the temperature of the heat exchanger is less than the preset thermal protection temperature, the step S220 is executed to control the wall-mounted air conditioner indoor unit to keep the current heating mode unchanged. Under the condition, the temperature of the heat exchanger does not reach the preset heat protection temperature, and the ambient temperature at the diagonal line of the wall-mounted air conditioner indoor unit does not reach the difference between the set temperature and the preset value, so that the wall-mounted air conditioner indoor unit is controlled to keep the current heating mode unchanged without starting heat protection.
Since the ambient temperature and the difference between the preset temperature and the preset temperature are compared, and the heat exchanger temperature and the preset thermal protection temperature are compared, the total four comparison results are obtained, according to the step execution sequence shown in fig. 2, in the case that the determination result of the step S216 is negative, it can be determined without error that the ambient temperature is greater than or equal to the difference between the preset temperature and the preset temperature, and the heat exchanger temperature is less than the preset thermal protection temperature, that is, the step S218 is executed. After step S218, step S220 may be executed to control the wall-mounted air conditioner indoor unit to keep the current heating mode unchanged.
That is to say, under the circumstances that ambient temperature is more than or equal to the difference between the set temperature and the preset value, and the heat exchanger temperature is less than the preset thermal protection temperature, because the ambient temperature of the indoor unit diagonal of the wall-mounted air conditioner reaches the difference between the set temperature and the preset value, but the heat exchanger temperature does not reach the preset thermal protection temperature, therefore need not to open thermal protection, it is enough to control the indoor unit of the wall-mounted air conditioner to keep the current heating mode unchanged. The indoor unit of the wall-mounted air conditioner is controlled to keep the current heating mode unchanged, namely, the heat protection is not required to be started or the rotating speed of an indoor fan is not required to be adjusted.
The step S214 of controlling the wall-mounted air conditioner indoor unit to start the thermal protection mode may include: and controlling the indoor unit of the wall-mounted air conditioner to be in a heating mode for a preset time. And, can also after controlling hanging air conditioner indoor unit to close the mode of heating and predetermine the duration: and detecting the temperature of the heat exchanger again, and controlling the wall-mounted air conditioner indoor unit to restart the heating mode under the condition that the temperature of the heat exchanger is less than the preset thermal protection temperature.
That is to say, after controlling hanging air conditioner indoor unit and opening hot protection mode, close the mode of heating promptly and predetermine duration, detect the heat exchanger temperature again, if the heat exchanger temperature is less than and predetermines hot protection temperature, explain no longer need carry out hot protection, can control hanging air conditioner indoor unit and open the mode of heating again, continue to provide the heat to the indoor environment, satisfy user's comfort level demand.
It should be noted that, in a specific embodiment, the preset value may be 1 ℃ and the preset thermal protection temperature may be 58 ℃. It should be noted that the specific values of the preset parameters are only exemplary and are not intended to limit the present invention. In other embodiments, the values may be set to other specific values according to actual situations.
Several specific embodiments are described below: if the set temperature is 23 c, the sensed ambient temperature is 22 c, and the heat exchanger temperature is 50 c, then it can be determined that the wall-mounted air conditioner indoor unit remains in the current heating mode. If the set temperature is 23 deg.c, the sensed ambient temperature is 22 deg.c and the heat exchanger temperature is 59 deg.c, then it may be determined that the wall-mounted air conditioner indoor unit is in the thermal protection mode.
If the set temperature is 23 deg.c, the sensed ambient temperature is 20 deg.c and the heat exchanger temperature is 50 deg.c, then it may be determined that the wall-mounted air conditioner indoor unit remains in the current heating mode. If the set temperature is 23 c, the sensed ambient temperature is 20 c, and the heat exchanger temperature is 59 c, then it may be determined that the indoor fan of the wall-mounted air conditioner is increasing in speed.
According to the control method of the wall-mounted air conditioner indoor unit, under the condition that the environmental temperature is smaller than the difference between the set temperature and the preset value and the temperature of the heat exchanger is greater than or equal to the preset heat protection temperature, the posture of the transverse guide plate is adjusted, downward air blowing is achieved by the wall-mounted air conditioner indoor unit, and the rotating speed of an indoor fan of the wall-mounted air conditioner indoor unit is controlled to be increased; under the condition that the ambient temperature is less than the difference between the set temperature and the preset value and the temperature of the heat exchanger is less than the preset thermal protection temperature, or under the condition that the ambient temperature is greater than or equal to the difference between the set temperature and the preset value and the temperature of the heat exchanger is less than the preset thermal protection temperature, the wall-mounted air conditioner indoor unit is determined to keep the current heating mode unchanged; the difference between the set temperature and the preset value is set at the ambient temperature more than or equal to, and under the condition that the heat protection temperature is preset to heat exchanger temperature more than or equal to, confirm that the hanging air conditioner indoor unit opens hot protection mode, can open hot protection according to actual conditions again under the even prerequisite of indoor ambient temperature distribution, avoid hanging air conditioner indoor unit easily, frequently open hot protection, effectively ensure the heating effect of hanging air conditioner indoor unit, promote user's comfort level and experience.
Fig. 3 is a schematic block diagram of a control device 200 of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention. The control device 200 of the wall-mounted air conditioner indoor unit comprises a processor 210 and a memory 220, wherein the memory 220 stores a control program 221, and the control program 221 is used for realizing the control method of the wall-mounted air conditioner indoor unit of any one of the embodiments when being executed by the processor 210. That is, the control method of the wall-mounted air conditioner indoor unit according to any of the above embodiments is described from the side of the control device 200 of the wall-mounted air conditioner indoor unit, that is, the control device 200 of the wall-mounted air conditioner indoor unit performs the relevant steps.
The processor 210 may be a Central Processing Unit (CPU), a digital processing unit, or the like. The processor 210 transmits and receives data through the communication interface. The memory 220 is used for storing programs executed by the processor 210. The memory 220 is any medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, or a combination of multiple memories 220. The control program 221 may be downloaded from a computer-readable storage medium to a corresponding computing/processing device or downloaded and installed to the control apparatus 200 via a network (e.g., the internet, a local area network, a wide area network, and/or a wireless network).
Fig. 4 is a schematic view of the overall structure of the wall-mounted air conditioner indoor unit 100 according to an embodiment of the present invention. The wall-mounted air conditioner indoor unit 100 may have the control device 200 of the wall-mounted air conditioner indoor unit of the above embodiment. That is, the control device 200 of the wall-mounted air conditioner indoor unit may be disposed on the wall-mounted air conditioner indoor unit 100 instead of being disposed outside the wall-mounted air conditioner indoor unit 100.
As shown in fig. 4, the wall-mounted air conditioner indoor unit 100 of the present embodiment may include: a housing 110, and an air outlet 111 may be provided below the housing 110. Specifically, the interior of the housing 110 defines a cavity in which an indoor fan and a heat exchanger may be disposed. When the wall-mounted air conditioner indoor unit 100 operates in the heating mode, the heat exchanger in the cavity operates as a condenser, and the indoor fan can send hot air after heat exchange by the heat exchanger to the indoor environment through the air outlet 111. In addition, the air outlet 111 can be further provided with a transverse guide plate 112 and a vertical guide plate, wherein the vertical guide plate can adjust left and right air outlet, and the transverse guide plate 112 can adjust up and down air outlet.
In the method for controlling the wall-mounted air conditioner indoor unit in the above embodiment, when the ambient temperature is less than the difference between the set temperature and the preset value, and the temperature of the heat exchanger is greater than or equal to the preset thermal protection temperature, the posture of the transverse guide plate 112 is adjusted, so that the wall-mounted air conditioner indoor unit 100 blows air downwards, so as to cool the heat exchanger of the wall-mounted air conditioner indoor unit 100. Although the temperature of the heat exchanger reaches the preset thermal protection temperature, since the ambient temperature at the diagonal line of the wall-mounted air conditioner indoor unit 100 does not reach the difference between the preset temperature and the preset value, it indicates that the temperature distribution of the indoor environment is not uniform, and the temperature of the heat exchanger is increased due to the upper circulation of the hot air. For the case that the temperature of the heat exchanger rises due to the upper circulation of the hot air, the heat protection is not directly started, but the indoor unit 100 of the wall-mounted air conditioner is blown downwards by adjusting the posture of the transverse guide plate 112, so as to cool the heat exchanger of the indoor unit 100 of the wall-mounted air conditioner.
The wall-mounted air conditioner indoor unit 100 can blow air downwards, a large amount of hot air can be prevented from being gathered above the wall-mounted air conditioner indoor unit 100, the temperature of the heat exchanger can be effectively reduced by preventing the hot air from rising due to the fact that the hot air enters the heat exchanger through the air inlet, and the hot air can be promoted to circulate fully in the indoor environment, so that the temperature distribution of the indoor environment is uniform. In addition, the rotating speed of the indoor fan can be adjusted, and the air flow rate is increased by increasing the rotating speed of the indoor fan, so that the indoor environment air flow is accelerated, the temperature distribution is promoted to be uniform, and the temperature of the heat exchanger is reduced.
In other embodiments, other measures can be used to promote even distribution of the indoor ambient temperature and reduction of the temperature of the heat exchanger without having to turn on the thermal protection. For example, the opening degree of an expansion valve of the wall-mounted air conditioner indoor unit 100 may be adjusted, and the opening degree of the expansion valve may be controlled to be increased to increase the flow rate of the refrigerant entering the heat exchanger. The flow of the refrigerant entering the heat exchanger is increased, so that the heating capacity of the heat exchanger is increased, the hot air is promoted to enter the indoor environment to be fully circulated, the temperature distribution of the indoor environment is uniform, the gathering of a large amount of hot air above the indoor unit 100 of the wall-mounted air conditioner can be avoided, the temperature rise of the heat exchanger caused by the fact that the hot air enters the heat exchanger through the air inlet is avoided, and the temperature of the heat exchanger can be effectively reduced.
In some specific embodiments, for controlling the opening of the expansion valve to increase, controlling the rotation speed of the indoor fan to increase, and adjusting the posture of the transverse guide plate 112, so as to enable the wall-mounted air conditioner indoor unit 100 to realize three measures of downward air blowing, any one of the measures can be independently adopted to promote the temperature distribution to be uniform, and the temperature of the heat exchanger can be reduced, or any two or three of the measures can be adopted to jointly promote the temperature distribution to be uniform, and the temperature of the heat exchanger can be reduced.
Thus, it should be appreciated by those skilled in the art that while various exemplary embodiments of the invention have been shown and described in detail herein, many other variations or modifications which are consistent with the principles of this invention may be determined or derived directly from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A control method of an indoor unit of a wall-mounted air conditioner comprises the following steps:
receiving a trigger signal of the indoor unit of the wall-mounted air conditioner for starting a heating mode and acquiring a set temperature of the indoor unit of the wall-mounted air conditioner;
detecting the ambient temperature at the diagonal position of the indoor unit of the wall-mounted air conditioner and the temperature of a heat exchanger of the indoor unit of the wall-mounted air conditioner;
judging whether the environment temperature is smaller than the difference between the set temperature and a preset value or not, and judging whether the temperature of the heat exchanger is larger than or equal to a preset thermal protection temperature or not; and
and if so, adjusting the posture of a transverse guide plate of the wall-mounted air conditioner indoor unit so as to cool a heat exchanger of the wall-mounted air conditioner indoor unit.
2. The method of claim 1, wherein the step of adjusting the attitude of the transverse guide of the wall mounted air conditioner indoor unit comprises:
and adjusting the posture of the transverse guide plate to enable the wall-mounted air conditioner indoor unit to blow air downwards.
3. The method as claimed in claim 1, wherein the step of adjusting the attitude of the transverse guide of the wall-mounted air conditioner indoor unit further comprises:
and controlling the rotating speed of an indoor fan of the wall-mounted air conditioner indoor unit to rise.
4. The method of claim 1, wherein,
and controlling the indoor unit of the wall-mounted air conditioner to start a thermal protection mode under the condition that the ambient temperature is greater than or equal to the difference between the set temperature and a preset value and the temperature of the heat exchanger is greater than or equal to the preset thermal protection temperature.
5. The method of claim 3, wherein the step of controlling the increase in the speed of the indoor fan of the wall-mounted air conditioner indoor unit further comprises, after the step of controlling the increase in the speed of the indoor fan:
and re-detecting the ambient temperature and the temperature of the heat exchanger, and controlling the indoor unit of the wall-mounted air conditioner to start a thermal protection mode under the condition that the ambient temperature is greater than or equal to the difference between the set temperature and a preset value and the temperature of the heat exchanger is greater than or equal to the preset thermal protection temperature.
6. The method as claimed in claim 4 or 5, wherein the step of controlling the wall-mounted air conditioner indoor unit to turn on the thermal protection mode comprises:
and controlling the indoor unit of the wall-mounted air conditioner to be in a heating mode for a preset time.
7. The method as claimed in claim 6, wherein the step of controlling the wall-mounted air conditioner indoor unit to turn off the heating mode for a preset time period further comprises:
and re-detecting the temperature of the heat exchanger, and controlling the indoor unit of the wall-mounted air conditioner to re-start the heating mode under the condition that the temperature of the heat exchanger is less than the preset thermal protection temperature.
8. The method of claim 1, wherein,
when the ambient temperature is less than the difference between the set temperature and a preset value and the heat exchanger temperature is less than the preset thermal protection temperature; or
Under the condition that the ambient temperature is greater than or equal to the difference between the set temperature and the preset value and the temperature of the heat exchanger is less than the preset thermal protection temperature,
and controlling the indoor unit of the wall-mounted air conditioner to keep the current heating mode unchanged.
9. A control device for a wall-mounted air conditioner indoor unit, comprising a processor and a memory, wherein the memory stores a control program, and the control program is used for realizing the control method for the wall-mounted air conditioner indoor unit according to any one of claims 1 to 8 when being executed by the processor.
10. A wall-mounted air conditioner indoor unit having the control device of claim 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211349727.1A CN115711465A (en) | 2022-10-31 | 2022-10-31 | Control method and device for wall-mounted air conditioner indoor unit and wall-mounted air conditioner indoor unit |
| PCT/CN2023/109353 WO2024093391A1 (en) | 2022-10-31 | 2023-07-26 | Control method and apparatus for indoor unit of wall-mounted air conditioner, and indoor unit of wall-mounted air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211349727.1A CN115711465A (en) | 2022-10-31 | 2022-10-31 | Control method and device for wall-mounted air conditioner indoor unit and wall-mounted air conditioner indoor unit |
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| CN115711465A true CN115711465A (en) | 2023-02-24 |
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| CN202211349727.1A Pending CN115711465A (en) | 2022-10-31 | 2022-10-31 | Control method and device for wall-mounted air conditioner indoor unit and wall-mounted air conditioner indoor unit |
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| CN (1) | CN115711465A (en) |
| WO (1) | WO2024093391A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024093391A1 (en) * | 2022-10-31 | 2024-05-10 | 青岛海尔空调器有限总公司 | Control method and apparatus for indoor unit of wall-mounted air conditioner, and indoor unit of wall-mounted air conditioner |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107940703A (en) * | 2017-09-29 | 2018-04-20 | 青岛海尔空调器有限总公司 | Air-conditioning and its control method |
| CN108332378B (en) * | 2018-02-11 | 2020-05-19 | 广东美的制冷设备有限公司 | Control method and control device, storage medium and mobile air conditioner |
| CN109387103B (en) * | 2018-10-11 | 2019-09-06 | 珠海格力电器股份有限公司 | A kind of method and air conditioner for preventing air-conditioning interior conduit temperature excessively high |
| CN109855267B (en) * | 2019-02-02 | 2021-04-20 | 青岛海尔空调器有限总公司 | Automatic air sweeping control method of air conditioner and air conditioner |
| CN110715414B (en) * | 2019-10-16 | 2021-04-20 | 广东美的制冷设备有限公司 | Air conditioner and control method and control system thereof |
| CN112944585B (en) * | 2021-02-20 | 2023-02-28 | 格力电器（合肥）有限公司 | Air conditioning equipment control method and device, air conditioning equipment and storage medium |
| CN115711465A (en) * | 2022-10-31 | 2023-02-24 | 青岛海尔空调器有限总公司 | Control method and device for wall-mounted air conditioner indoor unit and wall-mounted air conditioner indoor unit |
-
2022
- 2022-10-31 CN CN202211349727.1A patent/CN115711465A/en active Pending
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2023
- 2023-07-26 WO PCT/CN2023/109353 patent/WO2024093391A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024093391A1 (en) * | 2022-10-31 | 2024-05-10 | 青岛海尔空调器有限总公司 | Control method and apparatus for indoor unit of wall-mounted air conditioner, and indoor unit of wall-mounted air conditioner |
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| Publication number | Publication date |
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| WO2024093391A1 (en) | 2024-05-10 |
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