Control method of indoor unit, control device for indoor unit and air conditioner
By acquiring indoor ambient temperature and human body information, and combining this with the oscillation angle of the blades, the operating parameters of the air guide are determined, solving the problem of uneven airflow, achieving balanced airflow and improved heat exchange effect, and enhancing the user experience.
Patent Information
- Application Number
- CN202311262826.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-27
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2043-09-27
AI Technical Summary
Differences in the structure of the indoor unit fan casing and the air conditioner casing between different models result in uneven airflow, affecting heat exchanger efficiency and air volume, complicating control logic, and causing uneven adjustment of air outlet parameters, which in turn affects user experience.
By acquiring indoor ambient temperature and human body information, and combining the swing angle of the blades, the operating parameters of the air guide are determined, the position of the air guide is adjusted to balance the air volume, the movement of the air guide is controlled by a processor, and the movement direction and distance of the air guide are calculated using a preset formula. By combining the factors of the air guide and the blades, the air volume can be precisely adjusted.
It improves the comfort of the indoor environment and the uniformity of airflow, enhances the heat exchange effect and the accuracy of air supply, and meets the user's needs.
Smart Images

Figure CN119713525B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of smart home appliance technology, such as a control method for an indoor unit, a control device for an indoor unit, and an air conditioner. Background Technology
[0002] When an embedded air conditioner indoor unit is running, the fan drives external airflow, which is then discharged through the fan outlet and transferred to the heat exchanger surface through the channel formed by the fan casing and the air conditioner casing. Because the structural shapes of the fan casing and air conditioner casing vary depending on the model of the indoor unit, the airflow transferred to the heat exchanger is uneven, thus affecting the heat exchanger's efficiency and the indoor unit's airflow.
[0003] In related technologies, the indoor unit includes multiple air outlets, each equipped with a guide vane and a motor. The opening angle of each air outlet is adjusted by driving the guide vane with the motor. Simultaneously, combined with the indoor fan speed, the airflow parameters of different outlets are adjusted.
[0004] In the publicly disclosed implementation process, at least the following problems exist:
[0005] Adjusting the airflow parameters of each vent by regulating the indoor fan speed and the angle of the air guide vanes leads to complex control logic due to the multiple vents corresponding to multiple airflow parameters. Furthermore, excessively low or high fan speeds can cause imbalances in the airflow parameters of one or more vents, negatively impacting the user experience.
[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention
[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.
[0008] The indoor unit control method, control device for indoor unit, and air conditioner provided in this disclosure improve the balance of air volume and air delivery effect.
[0009] In some embodiments, a control method for an indoor unit is provided. The indoor unit includes a housing, and a guide vane, a louver, and an air outlet disposed within the housing. The guide vane is movable relative to the housing. The control method includes: acquiring indoor environmental temperature information and human body information; determining the sway angle of the louver based on the temperature information; determining operating parameters of the guide vane based on the temperature information, human body information, and the sway angle of the louver; and adjusting the position of the guide vane based on the operating parameters to adjust the air volume of the air outlets located on both sides of the guide vane.
[0010] In some embodiments, a control device for an indoor unit is provided, including a processor and a memory storing program instructions, the processor being configured to execute the indoor unit control method as described in the above embodiments when running the program instructions.
[0011] In some embodiments, an air conditioner is provided, including: an indoor unit; and a control device for the indoor unit as described in the above embodiments, installed on the indoor unit.
[0012] The indoor unit control method, control device for the indoor unit, and air conditioner provided in this disclosure can achieve the following technical effects:
[0013] The indoor unit control method provided in this disclosure acquires indoor environmental temperature information and human body information. Based on the acquired indoor environmental temperature information, the swing angle of the oscillating blades is determined. The temperature information, human body information, and oscillating blade angle are combined to determine the operating parameters of the air guide component. Then, the air guide component is controlled to move to the target position to adjust the airflow volume on both sides of the air guide component.
[0014] By combining human body information, temperature information, and the swing angle of the blades, the distribution of human bodies and temperature conditions in the indoor environment where the indoor unit is located can be analyzed. Furthermore, by combining the swing angle of the blades, the relative relationship of the required cooling capacity on both sides of the air guide can be determined. Then, by controlling the operation of the air guide, the air volume on both sides can be adjusted to improve the overall comfort of the indoor environment and enhance the uniformity of air volume and heat exchange effect.
[0015] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description
[0016] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:
[0017] Figure 1 This is a schematic flowchart of an indoor unit control method provided in one embodiment of the present disclosure;
[0018] Figure 2 This is a flowchart illustrating a control method for an indoor unit provided in another embodiment of this disclosure;
[0019] Figure 3 This is a schematic diagram of the structure of an air conditioner indoor unit provided in one embodiment of this disclosure;
[0020] Figure 4 yes Figure 3 A partial structural diagram of the air conditioner indoor unit provided in the embodiment shown;
[0021] Figure 5 yes Figure 3 The illustrated embodiment shows a bottom view of the indoor unit of an air conditioner.
[0022] Figure 6 yes Figure 5 A sectional view along the AA direction of the indoor unit of the air conditioner provided in the embodiment shown;
[0023] Figure 7 yes Figure 5 A cross-sectional view along the BB direction of the indoor unit of the air conditioner provided in the embodiment shown;
[0024] Figure 8 yes Figure 1 A schematic diagram of the airflow direction of the indoor unit of the air conditioner provided in the embodiment shown;
[0025] Figure 9 yes Figure 8 A partial structural diagram of the indoor unit of the air conditioner in the embodiment shown;
[0026] Figure 10 yes Figure 1 A schematic diagram of the installation structure of the air guide component of the indoor unit of the air conditioner provided in the embodiment shown;
[0027] Figure 11 yes Figure 10 The diagram shows the structure of the airflow guiding component in the indoor unit of the air conditioner provided in the embodiment shown.
[0028] Figure 12 yes Figure 11 An enlarged view of point X in the illustrated embodiment;
[0029] Figure 13 yes Figure 10 The front view of the embodiment shown;
[0030] Figure 14 yes Figure 13 CC-direction sectional view in the illustrated embodiment;
[0031] Figure 15 yes Figure 14An enlarged schematic diagram of point Y in the illustrated embodiment;
[0032] Figure 16 This is a schematic diagram of the structure of an air conditioner provided in one embodiment of the present disclosure.
[0033] Figure label:
[0034] 100 air conditioner indoor unit;
[0035] 110 Housing; 111 Cavity; 112 Sliding part; 113 First air outlet; 114 Second air outlet; 1101 Top wall; 1102 Bottom wall; 1103 First side wall; 1104 Second side wall; 1105 Third side wall; 1106 Fourth side wall;
[0036] 120 Fan assembly; 122 Air outlet; 124 Fan housing; 126 Fan;
[0037] 140 Flow guiding assembly; 141 Flow guiding element; 142 First flow guiding surface; 143 Second flow guiding surface; 144 Driving element; 145 Motor; 146 Transmission mechanism; 147 Rack; 148 Gear;
[0038] 150 First air duct; 160 Second air duct;
[0039] 170 First heat exchange section; 180 Second heat exchange section;
[0040] 1600 Air conditioner; 1602 Processor; 1604 Memory; 1606 Communication interface; 1608 Bus. Detailed Implementation
[0041] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.
[0042] In some embodiments, a control device for an indoor unit is provided, including a processor and a memory storing program instructions, the processor being configured to execute a method for controlling the indoor unit when the program instructions are executed.
[0043] In some embodiments, combined with Figure 1 As shown, a control method for an indoor unit is provided. The indoor unit includes a housing, and an air guide, a louver, and an air outlet disposed within the housing. The air guide is movable relative to the housing. The control method includes:
[0044] S101, the processor acquires indoor temperature information and human body information.
[0045] The indoor temperature is detected by a temperature sensor. Human presence in the indoor environment is detected by an infrared sensor.
[0046] S102, the processor determines the swing angle of the blades based on the temperature information.
[0047] S103, the processor determines the operating parameters of the guide vane based on temperature information, human body information, and the swing angle of the vane.
[0048] S104, the processor adjusts the position of the air guide according to the operating parameters in order to regulate the air volume of the air outlets located on both sides of the air guide.
[0049] The indoor unit control method provided in this disclosure acquires indoor environmental temperature information and human body information. Based on the acquired indoor environmental temperature information, the swing angle of the oscillating blades is determined. The temperature information, human body information, and oscillating blade angle are combined to determine the operating parameters of the air guide component. Then, the air guide component is controlled to move to the target position to adjust the airflow volume on both sides of the air guide component.
[0050] By combining human body information, temperature information, and the swing angle of the blades, the distribution of human bodies and temperature conditions in the indoor environment where the indoor unit is located can be analyzed. Furthermore, by combining the swing angle of the blades, the relative relationship of the required cooling capacity on both sides of the air guide can be determined. Then, by controlling the operation of the air guide, the air volume on both sides can be adjusted to improve the overall comfort of the indoor environment and enhance the uniformity of air volume and heat exchange effect.
[0051] Optionally, the steps of obtaining indoor environmental temperature information and human body information include: obtaining a first indoor temperature in a first area and a second indoor temperature in a second area; and obtaining the number of first human bodies located in the first area and the number of second human bodies located in the second area.
[0052] In this embodiment, temperature information of a first region and a second region located on both sides of the air guide is acquired, representing the first indoor temperature and the second indoor temperature, respectively. The number of people in the first region and the second region is also acquired. By acquiring the temperature information from both sides, the temperature difference between the two regions is determined. Combined with the human body information from both sides, the required airflow on both sides is determined. Generally, the number of people will have a certain impact on the ambient temperature. If the number of people in the first region is greater than the number of people in the second region, it indicates that the cooling required in the first region is greater than that required in the second region. If the number of people in the first region is less than the number of people in the second region, it indicates that the cooling required in the second region is greater than that required in the first region. This disclosure, by acquiring the first indoor temperature and the second indoor temperature, as well as the number of people in the first region and the second region, on both sides of the air guide, allows for the reasonable setting of the required airflow on both sides, thereby achieving a balance in temperature regulation on both sides, improving the accuracy of airflow, and ultimately enhancing the user experience.
[0053] Optionally, the housing includes a first air supply section and a second air supply section located on both sides of the air guide. The step of determining the swing angle of the blades based on temperature information includes: acquiring the target temperature conditions of the indoor environment; determining the swing angle of the blades at the first air supply section based on the first indoor temperature and the target temperature conditions; and determining the swing angle of the blades at the second air supply section based on the second indoor temperature and the target temperature conditions.
[0054] In this embodiment, the first and second air supply sections are each equipped with oscillating blades. The target temperature conditions for the indoor unit's operation are obtained, and the oscillation angles of the oscillating blades in the first and second air supply sections are determined based on the first indoor temperature and the target temperature conditions, as well as the second indoor temperature and the target temperature conditions. In this way, by determining the corresponding oscillation angles of the oscillating blades on both sides based on the relationship between the actual and target temperature conditions on both sides, the different airflow requirements on both sides are met, further improving the accuracy of airflow control.
[0055] Optionally, the step of determining the swing angle of the vanes at the first air supply unit based on the first indoor temperature and the target temperature condition includes: if the first indoor temperature meets the target temperature condition, determining that the swing angle of the vanes at the first air supply unit remains at the current angle; if the first indoor temperature does not meet the target temperature condition, determining that the swing angle of the vanes at the first air supply unit increases to a first preset angle.
[0056] In this embodiment, by comparing the first indoor temperature with the target temperature condition, if the first indoor temperature meets the target temperature condition, it means that the current first indoor temperature in the first area can meet the user's set target temperature requirement. Therefore, the oscillation angle of the oscillating blades can be maintained at the current oscillation angle. If the first indoor temperature does not meet the target temperature requirement, it means that the current first indoor temperature in the first area has not met the user's set target temperature requirement. Therefore, the oscillation angle of the oscillating blades is increased to improve the air volume in the first area, thereby achieving the effect of rapid temperature adjustment.
[0057] Optionally, the step of determining the swing angle of the oscillating blades at the second air supply unit based on the second indoor temperature and the target temperature condition includes: if the second indoor temperature meets the target temperature condition, determining that the swing angle of the oscillating blades at the second air supply unit remains at the current angle; if the second indoor temperature does not meet the target temperature condition, determining that the swing angle of the oscillating blades at the second air supply unit increases to a second preset angle.
[0058] In this embodiment, by comparing the second indoor temperature with the target temperature condition, if the second indoor temperature meets the target temperature condition, it means that the current second indoor temperature in the second zone meets the user's set target temperature requirement. Therefore, the oscillation angle of the oscillating blades is maintained at the current oscillation angle. If the second indoor temperature does not meet the target temperature requirement, it means that the current second indoor temperature in the second zone has not met the user's set target temperature requirement. Therefore, the oscillation angle of the oscillating blades is increased to improve the airflow in the second zone, thereby achieving rapid temperature adjustment.
[0059] In some embodiments, combined with Figure 2 As shown, a control method for an indoor unit is provided. The indoor unit includes a housing, and an air guide, a louver, and an air outlet disposed within the housing. The air guide is movable relative to the housing. The control method includes:
[0060] S201, the processor acquires indoor temperature information and human body information.
[0061] The indoor temperature is detected by a temperature sensor. Human presence in the indoor environment is detected by an infrared sensor.
[0062] S202, the processor determines the swing angle of the blades based on the temperature information.
[0063] S203, the processor obtains the indoor unit's operating mode and target set temperature.
[0064] S204, the processor determines the blade factor based on the swing angle of the blade.
[0065] S205, the processor determines the preset formula corresponding to the operating mode based on the operating mode.
[0066] S206: The processor determines the operating parameters of the flow guide by using a preset formula based on temperature information, human body information, blade factor, and target set temperature.
[0067] S207, the processor adjusts the position of the air guide according to the operating parameters in order to regulate the air volume of the air outlets located on both sides of the air guide.
[0068] The indoor unit control method disclosed herein combines temperature information from both sides of the air guide, human body information, louver factor, and target set temperature. It determines the operating parameters of the air guide through a preset formula, thereby improving the accuracy of determining the target position of the air guide. This enhances the accuracy of cooling capacity delivery within the first and second zones on both sides of the air guide, ultimately meeting user needs and improving the user experience. Compared to adjustment methods in related technologies, this method improves the uniformity of indoor cooling capacity.
[0069] Optionally, the step of determining the preset formula corresponding to the operating mode includes:
[0070] When the operating mode is heating mode, the preset formula is:
[0071]
[0072] When the operating mode is cooling mode, the preset formula is:
[0073]
[0074] Where ΔL is the operating parameter of the air guide, α is the swing factor, T1 is the first indoor temperature, T2 is the second indoor temperature, T0 is the target set temperature, N1 is the first number of people, N2 is the second number of people, and L is the width of the air outlet.
[0075] In this embodiment, corresponding preset formulas are set for different operating modes to improve the accuracy of airflow and enhance the air delivery effect under different operating modes. Furthermore, by calculating the proportion of temperature difference between the two sides and the proportion of the number of people, the parameters of the dominant factors are determined, thereby determining the direction of movement of the air guide, improving the accuracy of temperature control and the user experience.
[0076] Specifically, in heating mode: Regarding the influence of temperature: on the side with lower temperature, the airflow on that side should be increased, and the air guide should be moved to the opposite side to compensate for the temperature difference between the lower side and the target set temperature. Regarding the influence of the number of people: the side with more people should reach the set temperature first to meet the needs of the majority of people; at the same time, the opening angle of the louvers also has a direct impact on the airflow. Therefore, it is necessary to combine the louver factors on both sides to determine the target position of the air guide.
[0077] In cooling mode, considering the influence of temperature: on the side with higher temperature, the airflow on that side should be increased, and the air guide should be moved to the opposite side to compensate for the temperature difference between the higher side and the set temperature. Considering the influence of the number of people: the side with more people should reach the set temperature first to meet the needs of the majority; at the same time, the opening angle of the louvers also has a direct impact on the airflow. Therefore, it is necessary to combine the louver factors on both sides to determine the target position of the air guide.
[0078] Optionally, the step of determining the operating parameters of the guide component using a preset formula includes: calculating ΔL using the preset formula. If ΔL is negative, the direction of movement of the guide component is determined to be towards the first region, and the movement distance is the absolute value of ΔL. If ΔL is positive, the direction of movement of the guide component is determined to be towards the second region, and the movement distance is ΔL.
[0079] In this embodiment, the operating parameters of the air guide include the direction of movement and the distance of movement, ΔL, which is calculated using the aforementioned preset formula. The sign of ΔL indicates the direction of movement of the air guide, and the absolute value of ΔL indicates the distance of movement. Further, when ΔL is negative, the direction of movement of the air guide is determined to be towards the first region; when ΔL is positive, the direction of movement of the air guide is determined to be towards the second region. Thus, the movement parameters of the air guide can be determined using the preset formula, and by controlling the air guide to move to the target position, the airflow volume in the first and second regions can be adjusted.
[0080] Example 1: The indoor unit is currently operating in cooling mode, and the preset formula is:
[0081] Where L is the width of the air outlet, which is a positive number and has no effect on the direction of movement. It can be set according to the actual size of the structure. No specific value is given here, so no specific value is given in the example.
[0082] Example 1.1: T0 is 26℃, T1 is 29℃, T2 is 28℃, N1 is 30 people, N2 is 25 people, α is 1. According to the preset formula, ΔL = (1 × (29-28) / 26 + (30-25) / (30+25)) × L = 0.13L, that is, control the guide to move towards the second area, and the moving distance is 0.13L.
[0083] Example 2.1: T0 is 26℃, T1 is 29℃, T2 is 28℃, N1 is 25 people, N2 is 30 people, α is 1. According to the preset formula, ΔL = (1×(29-28) / 26+(25-30) / (30+25))×L = -0.053L, that is, control the guide to move towards the first area, and the moving distance is 0.053L.
[0084] Example 2: The indoor unit is currently operating in heating mode, and the preset formula is:
[0085] Where L is the width of the air outlet, which is a positive number and has no effect on the direction of movement. It can be set according to the actual size of the structure. No specific value is given here, so no specific value is given in the example.
[0086] Example 2.1: T0 is 27℃, T1 is 24℃, T2 is 25℃, N1 is 27 people, N2 is 30 people, α is 1. According to the preset formula, ΔL = (1×(-(24-25) / 27)+(27-30) / (27+30))×L =-0.015L, that is, control the guide to move towards the first area, and the moving distance is 0.015L.
[0087] Example 2.2: T0 is 27℃, T1 is 24℃, T2 is 26℃, N1 is 27 people, N2 is 28 people, α is 1. According to the preset formula, ΔL = (1×(-(24-26) / 27)+(27-28) / (27+28))×L = 0.056L, that is, control the guide to move towards the second area, and the moving distance is 0.056L.
[0088] Optionally, the step of determining the blade factor based on the swing angle of the blades includes: obtaining the swing angle of the first blade at the first air supply section and the swing angle of the second blade at the second air supply section; determining a first factor β based on the swing angle of the first blade; determining a second factor γ based on the swing angle of the second blade; and determining the blade factor α based on the first factor β and the second factor γ.
[0089] In this embodiment, considering that the swing angles of the first and second swing blades are not necessarily the same, the swing blade factor is determined by the first factor β and the second factor γ corresponding to the first and second swing blades, so as to improve the accuracy of the air volume output on both sides.
[0090] Optionally, the step of determining the first factor β based on the swing angle of the first blade includes: comparing the swing angle with a preset angle factor mapping table to determine the first factor β corresponding to the swing angle.
[0091] Optionally, the step of determining the second factor γ based on the swing angle of the second blade includes: comparing the swing angle with a preset angle factor mapping table to determine the second factor γ corresponding to the swing angle.
[0092] Optionally, an angle factor mapping table, see Table 1, is provided, where the angle for each setting can be set according to actual conditions. For example, the first setting is 30°, the second setting is 40°, the third setting is 50°, the fourth setting is 60°, the fifth setting is 70°, and the sixth setting is 80°.
[0093] Table 1
[0094]
[0095]
[0096] Optionally, the step of determining the leaf swing factor α based on the first factor β and the second factor γ includes: α = β × γ.
[0097] For example, if the swing angle of the first blade is two angles, then according to Table 1, the first factor β is 1.2; if the swing angle of the second blade is three angles, then according to Table 1, the second factor γ is 1.15, and α = 1.2 × 1.15 = 1.38.
[0098] Optionally, the step of determining the swing angle of the oscillating blades based on the temperature information includes: determining the absolute value ΔT of the difference between the temperature information and the target set temperature; determining the corresponding swing angle of the oscillating blades based on the preset difference range within which the difference ΔT falls. In this way, the swing angle of the oscillating blades is determined based on the difference ΔT between the actual indoor temperature and the target set temperature, and the cooling output matches the difference ΔT, thereby improving the indoor temperature regulation effect.
[0099] Optionally, the correspondence between the preset difference range and the swing angle is shown in Table 2, where T1 < T2 < T3 < T4 < T5.
[0100] Table 2
[0101] Preset difference range Swing angle <![CDATA[T5<ΔT]]> Six angles <![CDATA[T4<ΔT≤T5]]> Five angles <![CDATA[T3<ΔT≤T4]]> Four angles <![CDATA[T2<ΔT≤T3]]> Three angles <![CDATA[T1<ΔT≤T2]]> Second angle <![CDATA[0℃≤ΔT≤T1]]> First angle
[0102] The values of T1, T2, T3, T4, and T5 can be specifically set according to the actual usage.
[0103] In cooling mode, when the target set temperature is greater than or equal to the second indoor temperature and the target set temperature is greater than or equal to the first indoor temperature, the first and second swing blades are in the closed state.
[0104] In heating mode, when the target set temperature is less than or equal to the second indoor temperature and less than or equal to the first indoor temperature, the first and second swing blades are in the closed state.
[0105] Optionally, the value ranges of T1, T2, T3, T4, and T5 can be: 1.5℃≤T1≤3℃, 3℃≤T2≤4.5℃, 4℃≤T3≤5.5℃, 5℃≤T4≤6.5℃, and 6℃≤T5≤7.5℃, respectively.
[0106] For example, the correspondence between the preset difference range and the swing angle is as follows:
[0107] When 0℃≤ΔT≤2℃, the swing angle corresponds to one level of angle.
[0108] When 2℃ < ΔT ≤ 3℃, the swing angle corresponds to the second-level angle.
[0109] When 3℃ < ΔT ≤ 4℃, the swing angle corresponds to three different angle settings;
[0110] When 4℃ < ΔT ≤ 5℃, the swing angle corresponds to the fourth angle setting;
[0111] When 5℃ < ΔT ≤ 6℃, the swing angle corresponds to five angle settings;
[0112] When ΔT>6℃, the swing angle corresponds to the sixth angle.
[0113] Example 1: In cooling mode, the target set temperature is 26°C, the first indoor temperature of the first zone is 26°C, and the second indoor temperature of the second zone is 27°C.
[0114] The difference between the first indoor temperature and the target set temperature is 0, and the swing angle of the first blade corresponds to the first setting angle; the difference between the second indoor temperature and the target set temperature is 1℃, and the swing angle of the second blade corresponds to the first setting angle.
[0115] Example 2: In heating mode, the target set temperature is 26°C, the first indoor temperature in the first zone is 23°C, and the second indoor temperature in the second zone is 24°C.
[0116] The absolute value of the difference between the first indoor temperature and the target set temperature is 3℃, and the swing angle of the first blade corresponds to the second angle; the difference between the second indoor temperature and the target set temperature is 4℃, and the swing angle of the second blade corresponds to the third angle.
[0117] To improve indoor heat exchange, infrared sensors detect the number of people in the first and second zones at preset intervals. This allows for timely adjustments to the airflow based on changes in occupancy, enhancing the user experience.
[0118] Optionally, the preset period can range from half an hour to three hours. The specific setting can be customized based on the actual usage scenario. For example, classrooms can be set according to class hours, while residences can be set according to family routines. These are not listed here in detail.
[0119] In some embodiments, combined with Figures 1 to 7 As shown, an air conditioner indoor unit 100 is provided, which is applicable to the control method of the indoor unit described in any of the above embodiments. The air conditioner indoor unit 100 includes: a housing 110, a fan assembly 120, and a flow guiding assembly 140. The housing 110 includes a cavity 111. The fan assembly 120 is disposed within the cavity 111 and includes an air outlet 122. The flow guiding assembly 140 is disposed in the housing 110 and includes a flow guide 141. The flow guide 141 is located between the inner wall of the housing 110 and the air outlet 122 of the fan assembly 120, and the flow guide 141 is movable relative to the housing 110. One end of the flow guide 141 is disposed at the air outlet 122, and the flow guide 141 is moved relative to the housing 110 to divert the airflow discharged from the air outlet 122.
[0120] The air conditioning indoor unit 100 disclosed herein includes a housing 110, a fan assembly 120, and a flow guide assembly 140. The fan assembly 120 is installed inside the cavity 111 of the housing 110. The fan assembly 120 drives air outside the housing 110 to enter the housing 110 through the air outlet 122 of the fan assembly 120. The flow guide assembly 140 is installed in the housing 110. The flow guide assembly 140 includes a flow guide 141, which is installed between the inner wall of the housing 110 and the air outlet 122 of the fan assembly 120, with one end of the flow guide 141 disposed at the air outlet 122. In this way, by setting a guide 141 between the air outlet 122 of the fan assembly 120 and the inner wall of the housing 110, the air outlet 122 is divided into two air outlet areas by the guide 141. By adjusting the relative position of the end of the guide 141 and the air outlet 122, the airflow discharged through the air outlet 122 can be diverted and adjusted to meet the air volume requirements of different areas, thereby improving the heat exchange effect and user experience.
[0121] Optional, combined Figure 8 and Figure 9As shown, the air guide 141 includes a first air guide surface 142 and a second air guide surface 143. The first air guide surface 142 faces the side of the air outlet 122. The second air guide surface 143 faces the other side of the air outlet 122. A first air duct 150 is formed between the first air guide surface 142 and the inner wall of the housing 110, and a second air duct 160 is formed between the second air guide surface 143 and the inner wall of the housing 110.
[0122] In this embodiment, the airflow guide 141 includes a first airflow guide surface 142 and a second airflow guide surface 143 disposed opposite to each other. One end of the first airflow guide surface 142 extends from the air outlet 122 toward the inner wall of the housing 110, and the second airflow guide surface 143 extends from the air outlet 122 toward the inner wall of the housing 110. Furthermore, the first airflow guide surface 142 and the second airflow guide surface 143 extend toward opposite sides of the housing 110, respectively. Thus, the first airflow guide surface 142 and the second airflow guide surface 143 form a first air duct 150 and a second air duct 160 with the inner wall of the housing 110, respectively, to achieve airflow diversion and regulation of the airflow discharged from the air outlet 122.
[0123] Optionally, a cross-section can be formed along a direction perpendicular to the plane where the air outlet 122 is located. In the resulting cross-section, the first guide surface 142 is an arc, and the second guide surface 143 is an arc.
[0124] In this embodiment, both the first guide surface 142 and the second guide surface 143 are curved surfaces. By using curved surfaces, the airflow is guided, thereby achieving the guiding effect on the airflow.
[0125] The arc surface of the first guide surface 142 is concave towards the side of the second guide surface 143, and the arc surface of the second guide surface 143 is concave towards the side of the first guide surface 142, so that both the first air duct 150 and the second air duct 160 are constructed in a trumpet shape to improve the air guiding effect.
[0126] Optionally, a cross-section can be formed along a direction perpendicular to the plane where the air outlet 122 is located. In the resulting cross-section, the first guide surface is a straight line (not shown in the figure), and the second guide surface is a straight line (not shown in the figure).
[0127] In this embodiment, both the first and second guide surfaces are planar, and both are inclined relative to the plane of the air outlet. An angle is formed between the first and second guide surfaces to divert and change the direction of the airflow discharged through the air outlet 122, thereby improving the guiding effect.
[0128] Optionally, a cross-section can be formed along a direction perpendicular to the plane of the air outlet 122. In the resulting cross-section, one of the first and second guide surfaces is a straight line (not shown in the figure), and the other is an arc, to split and change the direction of the airflow discharged through the air outlet 122, thereby improving the guiding effect. This also allows for adaptation to the structural requirements of different indoor unit models, enabling the selection and specific setting of the corresponding guide structure, thus improving the adaptability of the guide component 141.
[0129] Optional, combined Figure 7 As shown, the length direction of the guide 141 is the same as the length direction of the air outlet 122 of the fan assembly 120.
[0130] In this embodiment, the length of the guide member 141 is set to be equal to or greater than the length of the air outlet 122 of the fan assembly 120. Furthermore, the extension direction of the guide member 141 is the same as the extension direction of the air outlet 122. Thus, the guide member 141 can guide and divert the airflow discharged from the entire air outlet 122 of the fan assembly 120, improving the airflow guidance effect, avoiding turbulence in the airflow discharged from the air outlet 122, preventing air leakage, and improving the overall operational stability of the unit.
[0131] Optionally, the projection is made along a direction perpendicular to the plane where the air outlet 122 is located. In the resulting projection plane, one end of the guide 141 is located between the two opposite sidewalls of the air outlet 122 along the width direction.
[0132] In this embodiment, a projection is made along a direction perpendicular to the plane where the air outlet 122 is located. Within the resulting projection plane, the projection of the end of the guide member 141 located on one side of the air outlet 122 lies between the two side walls of the air outlet 122. By moving the guide member 141 along the width direction of the air outlet 122, the airflow can be diverted through the guide member 141. Furthermore, the different relative positions of the guide member 141 and the air outlet 122 result in different airflows discharged through the first air duct 150 and the second air duct 160.
[0133] Specifically, by projecting along a direction perpendicular to the plane where the air outlet 122 is located, the air guide 141 divides the air outlet 122 into a first air outlet area and a second air outlet area within the resulting projection plane. As the air guide 141 moves along the width direction of the air outlet 122, the areas of the first and second air outlet areas change accordingly, and consequently, the airflow rate discharged through the first and second air outlet areas also changes accordingly. Consequently, the cooling capacity guided into the room through the first air duct 150 and the second air duct 160 also changes accordingly. In this way, the air guide 141 can be controlled according to the cooling capacity requirements of the indoor unit and the corresponding areas of the first and second air ducts 150 and 160, thereby enabling appropriate adjustment of the airflow rate to improve heat exchange efficiency and enhance the user experience.
[0134] Optional, combined Figures 10 to 15 As shown, the flow guiding assembly 140 also includes a driving member 144. The driving member 144 is disposed in the housing 110, and the output end of the driving member 144 is connected to the flow guiding member 141. The driving member 144 is used to drive the flow guiding member 141 to move relative to the air outlet 122 to adjust the flow rate.
[0135] In this embodiment, the flow guiding assembly 140 further includes a driving member 144 disposed on the housing 110. The driving member 144 is used to drive the flow guiding member 141 to move relative to the housing 110 to adjust the diversion flow rate to the air outlet 122.
[0136] Optional, combined Figure 15 As shown, the indoor unit 100 of the air conditioner also includes a sliding part 112. The sliding part 112 is disposed on the inner wall of the housing 110. The air guide 141 is slidably connected to the sliding part 112. The driving member 144 is used to drive the air guide 141 to slide along the sliding part 112 to adjust the relative position between the air guide 141 and the air outlet 122.
[0137] In this embodiment, a sliding portion 112 is provided on the inner wall of the housing 110 to achieve a sliding connection between the flow guide 141 and the housing. The sliding portion 112 also provides support for the installation of the flow guide 141.
[0138] Optional, combined Figures 10 to 15 As shown, the drive unit 144 includes a motor 145 and a transmission mechanism 146. The motor 145 is disposed in the housing 110. The input end of the transmission mechanism 146 is connected to the output shaft of the motor 145, and the output end of the transmission mechanism 146 is connected to the guide member 141.
[0139] In this embodiment, the driving component 144 includes a motor 145 and a transmission mechanism 146. The motor 145 provides power. The output shaft of the motor 145 is connected to the input end of the transmission mechanism 146, and the output end of the transmission mechanism 146 is connected to the guide member 141. The motor 145 drives the transmission mechanism 146 to move, and the transmission mechanism 146 drives the guide member 141 to move relative to the air outlet 122, so as to realize the diversion and flow distribution of the airflow discharged from the air outlet 122.
[0140] Optional, combined Figure 11 and Figure 15 As shown, the transmission mechanism 146 includes a rack 147 and a gear 148. The rack 147 is disposed at the end of the guide member 141. The gear 148 is sleeved on the output shaft of the motor 145, and the gear 148 meshes with the rack 147.
[0141] In this embodiment, the transmission mechanism 146 includes a gear 148 and a rack 147 that mesh with each other. The motor 145 can rotate in the forward or reverse direction, thereby driving the gear 148 to rotate. The meshing of the gear 148 and the rack 147 drives the guide member 141 to move relative to the housing 110.
[0142] Optional, combined Figure 15 As shown, the sliding part 112 includes a raised guide rail, which is disposed on the side walls of opposite sides of the housing 110. The rack 147 is provided with a groove, and the raised guide rail is inserted into the groove. The motor 145 drives the gear 148 to rotate, and the gear 148 drives the rack 147 to reciprocate along the raised guide rail, so as to adjust the position of the guide member 141.
[0143] Optionally, limit structures are provided at both ends of the raised guide rail to limit the travel of the rack 147, thereby preventing the rack 147 from derailing and improving the stability of the whole machine operation.
[0144] Optionally, there is a gap between the guide 141 and the housing 110 to improve the smoothness of the movement of the guide 141 relative to the housing 110.
[0145] Optional, combined Figure 4 , Figure 6 and Figure 8 As shown, the indoor unit 100 of the air conditioner also includes a first heat exchange section 170 and a second heat exchange section 180. The first heat exchange section 170 is disposed within the first air duct 150. The second heat exchange section 180 is disposed within the second air duct 160.
[0146] In this embodiment, the indoor unit 100 of the air conditioner further includes a first heat exchange section 170 and a second heat exchange section 180 disposed on opposite sides of the fan assembly 120. The first heat exchange section 170 is disposed within the first air duct 150. Airflow discharged from the air outlet 122 on one side of the guide member 141 of the fan assembly 120 enters the first air duct 150, and after heat exchange in the first heat exchange section 170, it enters the room. The second heat exchange section 180 is disposed within the second air duct 160. Airflow discharged from the air outlet 122 on the other side of the guide member 141 of the fan assembly 120 enters the second air duct 160, and after heat exchange in the second heat exchange section 180, it enters the room.
[0147] Optional, combined Figure 3 and Figure 5 , Figure 6 As shown, the housing 110 further includes a first air supply section 113 and a second air supply section 114. The first air supply section 113 is connected to the first air duct 150. The second air supply section 114 is connected to the second air duct 160.
[0148] In this embodiment, the housing 110 includes a first air supply section 113 communicating with a first air duct 150 and a second air supply section 114 communicating with a second air duct 160. A portion of the airflow, after being diverted by the guide member 141, passes through the first air duct 150 and is delivered into the room via the first air supply section 113. Another portion of the airflow, after being diverted by the guide member 141, passes through the second air duct 160 and is delivered into the room via the second air supply section 114.
[0149] Specifically, in combination Figure 6 and Figure 7 As shown, the housing 110 includes a top wall 1101 and a bottom wall 1102 disposed opposite to each other, and a first side wall 1103, a second side wall 1104, a third side wall 1105, and a fourth side wall 1106 located between the top wall 1101 and the bottom wall 1102. The first side wall 1103 and the third side wall 1105 are disposed opposite to each other, and the second side wall 1104 and the fourth side wall 1106 are disposed opposite to each other.
[0150] Furthermore, the first air supply section 113 and the second air supply section 114 are formed on the bottom wall 1102, and the air inlet is formed on the bottom wall 1102. The guide member 141 extends along the direction from the first side wall 1103 to the third side wall 1105. Sliding portions 112 are distributed on the first side wall 1103 and the third side wall 1105 to achieve slidable connection with both ends of the guide member 141. The guide member 141 has a certain gap between its top side and the top wall 1101 to achieve smooth sliding of the guide member 141.
[0151] Furthermore, the first heat exchange section 170 and the second heat exchange section 180 extend along the direction from the first sidewall 1103 to the third sidewall 1105. The first air supply section 113 and the second air supply section 114 extend along the direction from the first sidewall 1103 to the third sidewall 1105.
[0152] Furthermore, along the direction from the second side wall 1104 to the fourth side wall 1106, the fan assembly 120 is located in the middle, and a first heat exchange section 170 and a second heat exchange section 180 are respectively provided on both sides of the fan assembly 120. Under the action of the fan assembly 120, the external airflow enters the cavity 111, is discharged through the air outlet 122 of the fan assembly 120, and flows to both sides. After heat exchange through the first heat exchange section 170 and the second heat exchange section 180 respectively, it enters the room through the first air supply section 113 and the second air supply section 114.
[0153] Optional, combined Figure 4 As shown, the fan assembly 120 includes a fan housing 124 and a fan 126. The fan housing 124 is disposed within the cavity 111. The fan housing 124 includes an air outlet 122. The fan 126 is disposed within the fan housing 124.
[0154] In this embodiment, the fan assembly 120 includes a fan housing 124 and a fan 126, and the airflow is guided by the fan housing 124.
[0155] Optionally, the indoor unit of the air conditioner includes a temperature sensor for detecting temperature information of the indoor environment.
[0156] Optionally, the indoor unit 100 of the air conditioner also includes an infrared sensor, which is disposed on the bottom wall 1102 of the housing 110. The infrared sensor detects the presence of people in the room.
[0157] Specifically, the maximum distance that the guide member 141 can move in one direction is equal to the width of the air outlet 122. That is, along the direction from the second side wall 1104 to the fourth side wall 1106, the guide member 141 can move from one side of the air outlet 122 to the other side.
[0158] Optionally, the air conditioner indoor unit 100 may include a recessed indoor unit.
[0159] In some embodiments, the air conditioner includes an indoor unit as described in any of the above embodiments and a heat exchange system, wherein the heat exchange system is connected to the indoor unit.
[0160] The air conditioner disclosed herein includes a heat exchange system and an indoor unit. The heat exchange system is used to achieve cooling or heating. The indoor unit is installed indoors. By employing the indoor unit of any of the above embodiments, all the beneficial effects of the indoor unit described in any of the above embodiments are achieved, and will not be repeated here.
[0161] This disclosure provides a control device 1600 for an indoor unit, the structure of which is as follows: Figure 16 As shown, it includes:
[0162] The processor 1602 and memory 1604 may further include a communication interface 1606 and a bus 1608. The processor 1602, communication interface 1606, and memory 1604 can communicate with each other via the bus 1608. The communication interface 1606 can be used for information transmission. The processor 1602 can call logic instructions stored in the memory 1604 to execute the indoor unit control method of the above embodiment.
[0163] The memory 1604, 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 this disclosure. The processor 1602 executes functional applications and data processing by running the program instructions / modules stored in the memory 1604, thereby implementing the indoor unit control method in the above method embodiments. Therefore, it possesses all the beneficial effects of the above embodiments, which will not be elaborated further here.
[0164] The memory 1604 may include a program storage area and a data storage area. The program storage area may store the operating system and application programs required for at least one function; the data storage area may store data created based on the use of the terminal device. Furthermore, the memory 1604 may include high-speed random access memory and may also include non-volatile memory.
[0165] This disclosure provides an air conditioner, including: an indoor unit; and a control device for the indoor unit as described in any of the above embodiments, installed on the indoor unit.
[0166] This disclosure provides a computer-readable storage medium storing computer-executable instructions configured to execute the control method for the indoor unit described above.
[0167] The aforementioned computer-readable storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.
[0168] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. The scope of the embodiments of this disclosure includes the entire scope of the claims and all available equivalents of the claims. When used in this application, although the terms “first,” “second,” etc., may be used in this application to describe elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, a first element may be called a second element without changing the meaning of the description, and similarly, a second element may be called a first element, provided that all occurrences of “first element” are consistently renamed and all occurrences of “second element” are consistently renamed. First and second elements are both elements, but may not be the same element. Moreover, the terminology used in this application is only for describing embodiments and is not intended to limit the claims. As used in the description of the embodiments and claims, unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms. Similarly, the term “and / or” as used herein means including one or more of the associated listed any and all possible combinations. Additionally, when used in this application, the terms “comprise” and its variations “comprises” and / or “comprising” refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase “comprising an…” does not exclude the presence of additional identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.
[0169] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.
[0170] The methods and products (including but not limited to devices and equipment) disclosed in the embodiments herein can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of units may be merely a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to implement this embodiment according to actual needs. In addition, the functional units in the embodiments of this disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
[0171] 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 this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than that shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, or they may be executed in reverse order, depending on the functions involved. In the descriptions 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; in some cases, there is no specific order between different operations or steps. For example, two consecutive operations or steps may actually be executed substantially in parallel, or they may be executed in reverse order, depending on the functions involved. Each block in a block diagram and / or flowchart, and combinations of blocks in a block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.
Claims
1. A control method of an indoor unit, characterized by, The indoor unit comprises a shell, a flow guide, a swing leaf and an air outlet arranged in the shell, the flow guide is movable relative to the shell, and the control method comprises: Obtaining temperature information and human body information of an indoor environment, including: obtaining a first indoor temperature of a first area and a second indoor temperature of a second area; and obtaining a first number of human bodies located in the first area and a second number of human bodies located in the second area; Determining a swing angle of the swing leaf according to the temperature information; Determining an operation parameter of the flow guide according to the temperature information, the human body information and the swing angle of the swing leaf through a preset formula; wherein, according to the operation mode, a preset formula corresponding to the operation mode is determined, including: in the case that the operation mode is a heating mode, the preset formula is: ; In the case that the operation mode is a cooling mode, the preset formula is: ; In the formula, ΔL is the operation parameter of the flow guide, α is a swing factor, T1 is the first indoor temperature, T2 is the second indoor temperature, T0 is a target set temperature, N1 is the first number of human bodies, N2 is the second number of human bodies, and L is the width of the air outlet; According to the operation parameter, the position of the flow guide is adjusted to adjust the air volume of the air outlet located on both sides of the flow guide.
2. The control method of the indoor unit according to claim 1, characterized by, The shell comprises a first air supply part and a second air supply part located on both sides of the flow guide, and the step of determining the swing angle of the swing leaf according to the temperature information comprises: Obtaining a target temperature condition of an indoor environment; Determining the swing angle of the swing leaf at the first air supply part according to the first indoor temperature and the target temperature condition; Determining the swing angle of the swing leaf at the second air supply part according to the second indoor temperature and the target temperature condition.
3. The control method of the indoor unit according to claim 2, wherein The step of determining the swing angle of the swing leaf at the first air supply part according to the first indoor temperature and the target temperature condition comprises: In the case that the first indoor temperature meets the target temperature condition, the swing angle of the swing leaf at the first air supply part is determined to remain at a current angle; In the case that the first indoor temperature does not meet the target temperature condition, the swing angle of the swing leaf at the first air supply part is determined to increase to a first preset angle; The step of determining the swing angle of the swing leaf at the second air supply part according to the second indoor temperature and the target temperature condition comprises: In the case that the second indoor temperature meets the target temperature condition, the swing angle of the swing leaf at the second air supply part is determined to remain at a current angle; In the case that the second indoor temperature does not meet the target temperature condition, the swing angle of the swing leaf at the second air supply part is determined to increase to a second preset angle.
4. The control method of the indoor unit according to any one of claims 1 to 3, characterized by, The step of determining the operation parameter of the flow guide according to the temperature information, the human body information and the swing angle of the swing leaf through the preset formula comprises: Obtaining an operation mode and a target set temperature of the indoor unit; Determining a swing factor according to the swing angle of the swing leaf; Determining the operation parameter of the flow guide through the preset formula according to the temperature information, the human body information, the swing factor and the target set temperature.
5. The control method of the indoor unit according to any one of claims 1 to 3, characterized by, The step of determining the operation parameter of the flow guide through the preset formula comprises: Calculating ΔL through the preset formula; In the case that ΔL is a negative value, the moving direction of the flow guide is determined to be moving to the side of the first area, and the moving distance is the absolute value of ΔL. In the case that the ΔL is a positive value, it is determined that the moving direction of the flow guide is moving to the second area side, and the moving distance is ΔL.
6. The control method of the indoor unit according to claim 4, characterized by, According to the swing angle of the swing leaf, the step of determining the swing leaf factor comprises: Obtaining the swing angle of the first swing leaf at the first air supply part and the swing angle of the second swing leaf at the second air supply part; According to the swing angle of the first swing leaf, determining a first factor; According to the swing angle of the second swing leaf, determining a second factor; According to the first factor and the second factor, determining the swing leaf factor.
7. A control device for an indoor unit, comprising a processor and a memory having stored program instructions, characterized in that, The processor is configured to execute the control method of the indoor unit as claimed in any one of claims 1 to 6 when running the program instructions.
8. An air conditioner characterized by comprising: Comprise: An indoor unit; The control device for the indoor unit as claimed in claim 7 is installed in the indoor unit.
Citation Information
Patent Citations
Air conditioner air supply control method and device, computer equipment and storage medium
CN115789907A
Floor-installed air conditioner
JP2008151477A