WO2020248978A1

WO2020248978A1 - Control method for air conditioner, and air conditioner

Info

Publication number: WO2020248978A1
Application number: PCT/CN2020/095177
Authority: WO
Inventors: 刘卫兵; 郝本华; 刘庆赟; 徐中华; 孙婷
Original assignee: 青岛海尔空调器有限总公司; 海尔智家股份有限公司
Priority date: 2019-06-13
Filing date: 2020-06-09
Publication date: 2020-12-17
Also published as: CN110285533B; CN110285533A

Abstract

A control method for an air conditioner, and an air conditioner. The control method for an air conditioner comprises: acquiring the human wrist temperature of a user in a region where an indoor unit of an air conditioner is located; and when the human wrist temperature is in a preset comfortable temperature range, controlling the air conditioner to supply air in a natural air mode. In the control method for an air conditioner of the present invention, when a human wrist temperature is in a preset comfortable temperature range, an air conditioner is controlled to supply air in a natural air mode, so that a user can feel more comfortable natural air when at an appropriate body temperature, and the air-blowing feeling of the user is improved.

Description

Control method of air conditioner and air conditioner

Technical field

The present invention relates to the technical field of air conditioning, in particular to a control method of an air conditioner and an air conditioner.

Background technique

With the development of science and technology, comfort, high technology, and intelligence are the current development trends in the home appliance market. How to meet user needs more intuitively, more comfortably, and more intelligently is an urgent research topic in the market. During the operation of the indoor unit of the air conditioner, the air outlet usually blows directly to people during cooling, which makes the user feel too cold, and the user has a very dry feeling when heating, and it is strong or high. In the case of wind and other conditions, such wind is rapid and unfriendly, not only the noise is loud, but also the strong wind affects the user experience. If the wind speed is reduced, the cooling capacity design requirements will not be met.

Summary of the invention

An object of the present invention is to provide a control method of an air conditioner that improves the user's blowing experience.

A further object of the present invention is to provide a control method of an air conditioner whose blowing method is closer to natural wind.

A further object of the present invention is to provide an air conditioner that improves the user's blowing experience.

In particular, the present invention provides a control method of an air conditioner, including:

Obtain the user's human wrist temperature in the area where the indoor unit of the air conditioner is located;

When the temperature of the human wrist is in the preset comfortable temperature range, the air conditioner is controlled to supply air in a natural wind mode.

Optionally, a swing leaf assembly is provided at the air outlet of the indoor unit, and the swing leaf assembly includes a horizontal swing leaf for adjusting the wind out of the vertical direction and a vertical swing leaf for adjusting the wind out of the left and right direction;

In the natural wind mode, the horizontal swing blades are oscillated at a constant speed, the swing angle of the vertical swing blades are adjusted intermittently, and the rotation speed of the indoor unit fan is intermittently adjusted.

Optionally, the step of intermittently adjusting the swing angle of the vertical swing blade includes: controlling the vertical swing blade to repeat multiple rotation cycles, wherein in each rotation period, the vertical swing blade rotates by a preset change angle and maintains a first preset maintenance time , And then proceed to the next rotation cycle;

The step of intermittently adjusting the rotation speed of the indoor unit fan includes: controlling the fan to repeat multiple rotation speed adjustment cycles, wherein in each rotation speed adjustment cycle, the rotation speed of the fan is adjusted to a preset changing speed value and maintained for a second preset maintenance time, and then the next step is performed. One cycle of speed regulation.

Optionally, when the air conditioner is in a cooling state:

When the temperature of the human wrist is higher than the preset comfortable temperature range, control the horizontal and vertical swing blades to supply air at the limit deflection angle;

When the temperature of the human wrist is lower than the preset comfortable temperature range, control the yaw blade to deflect to the first longitudinal deflection angle and the vertical yaw blade to deflect to the first lateral deflection angle, wherein the first longitudinal deflection angle is smaller than the limit deflection angle of the yaw blade , The first lateral deflection angle is smaller than the limit deflection angle of the vertical swing blade.

Optionally, after controlling the horizontal and vertical oscillating blades to supply air at the limit deflection angle for the first preset time, it further includes: if the temperature of the human wrist is still higher than the preset comfortable temperature range, controlling the fan to accelerate and the air conditioner to compress Machine upscaling

After controlling the yaw blade and the vertical oscillating blade to supply air at the first longitudinal deflection angle and the first lateral deflection angle respectively for a second preset time, it also includes: if the temperature of the human wrist is still lower than the preset comfortable temperature range, controlling the fan to decelerate , Compressor frequency reduction.

Optionally, when the air conditioner is in a heating state:

When the temperature of the human wrist is lower than the preset comfortable temperature range, control the horizontal and vertical swing leaves to supply air at the limit deflection angle;

When the temperature of the human wrist is higher than the preset comfortable temperature range, control the yaw blade to deflect to the second longitudinal deflection angle and the vertical yaw blade to deflect to the second lateral deflection angle, wherein the second longitudinal deflection angle is less than the limit deflection angle of the yaw blade , The second lateral deflection angle is smaller than the limit deflection angle of the vertical swing blade.

Optionally, after controlling the yaw blades and the vertical oscillating blades to supply air at the limit deflection angle for a third preset time, it further includes: if the temperature of the human wrist is still lower than the preset comfortable temperature range, controlling the fan to accelerate and the air conditioner to compress Machine upscaling

After controlling the horizontal and vertical swing blades to supply air at the second longitudinal deflection angle and the second lateral deflection angle respectively for a fourth preset time, it also includes: if the temperature of the human wrist is still higher than the preset comfortable temperature range, controlling the fan to slow down , Compressor frequency reduction.

Optionally, before the step of obtaining the temperature of the human wrist, the method further includes:

Obtain the outdoor ambient temperature where the air conditioner is located;

Based on the outdoor ambient temperature, the air conditioner is controlled to maintain the standby state or the air conditioner is controlled to enter the cooling or heating state, where

When the outdoor ambient temperature is higher than the preset ambient comfortable temperature range, control the air conditioner to enter the cooling state;

When the outdoor environment temperature is in the preset environment comfortable temperature range, control the air conditioner to maintain the standby state;

When the outdoor environment temperature is lower than the preset environment comfortable temperature range, the air conditioner is controlled to enter the heating state.

Optionally, before obtaining the outdoor ambient temperature, the method further includes:

Get the distance between the user and the indoor unit;

When the distance is less than the preset distance threshold, the air conditioner is controlled to enter the standby state.

The present invention also provides an air conditioner, including:

The human body detection device is configured to communicate with the wristband worn by the user to obtain the temperature of the user's human wrist;

The control device includes a memory and a processor, and a control program is stored in the memory. When the control program is executed by the processor, it is used to implement the aforementioned control method.

Optionally, the air conditioner further includes:

An external environment temperature detection device configured to obtain the temperature of the outdoor environment where the air conditioner is located; and/or

The distance detection device is configured to communicate with the wristband worn by the user to obtain the distance between the user and the air conditioner.

The control method of the air conditioner of the present invention proposes that when the temperature of the human wrist is in the preset comfortable temperature range, the air conditioner is controlled to supply air in a natural wind mode, which can make the user feel more comfortable natural wind when the body temperature is suitable, and improve the user’s Feel the wind.

Further, the natural wind mode of the air conditioner of the present invention is realized by differently controlling the horizontal swing leaf, the vertical swing leaf, and the fan, which can make the blowing method closer to natural wind and improve the user's blowing experience.

Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will better understand the above and other objectives, advantages and features of the present invention.

Description of the drawings

Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary but not restrictive manner with reference to the accompanying drawings. The same reference numerals in the drawings indicate the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the attached picture:

Fig. 1 is a perspective schematic diagram of an air conditioner according to an embodiment of the present invention when the air outlet is closed.

Fig. 2 is a perspective schematic view of the air conditioner shown in Fig. 1 when the air outlet is opened.

Fig. 3 is a perspective schematic view of some parts of the air conditioner shown in Fig. 1.

Fig. 4 is a perspective schematic view of the vertical swing leaf of the swing leaf assembly of the air conditioner shown in Fig. 1.

Fig. 5 is a schematic diagram of the control device and related components of the air conditioner shown in Fig. 1.

Fig. 6 is a schematic flowchart of the control method of the air conditioner shown in Fig. 1.

Fig. 7 is a schematic diagram of the control flow when the air conditioner shown in Fig. 1 is in a cooling state.

Fig. 8 is a schematic diagram of the control flow when the air conditioner shown in Fig. 1 is in a heating state.

Fig. 9 is a schematic flowchart of the air conditioner shown in Fig. 1 entering a cooling/heating state.

Detailed ways

Fig. 1 is a perspective schematic view of an air conditioner 100 when the air outlet 113 is closed according to an embodiment of the present invention. FIG. 2 is a perspective schematic diagram of the air conditioner 100 shown in FIG. 1 when the air outlet 113 is opened. Fig. 3 is a perspective schematic view of some components of the air conditioner 100 shown in Fig. 1. FIG. 5 is a schematic diagram of the control device 200 and related components of the air conditioner 100 shown in FIG. 1. Fig. 6 is a schematic flowchart of a control method of the air conditioner 100 shown in Fig. 1. The air conditioner 100 in the embodiment of the present invention is a split type air conditioner 100, and includes a cabinet-type indoor unit and an outdoor unit. The indoor unit generally includes a housing 110, a guide plate 112, a fan 120, a motor 121, an air duct assembly, a human body detection device 181, an evaporator, and a control device 200. The fan 120 is arranged in the housing 110 and is used to send air to the indoor space. An air outlet 113 is opened on the front panel 111 on the front side of the housing 110, and an air inlet (not shown in the figure) is provided on the rear side of the housing 110. A movable guide plate 112 is provided at the air outlet 113. The air outlet 113 is exposed by moving the guide plate 112 into the inner side of the front panel 111, and the air outlet 113 is closed by moving the guide plate 112 out of the inner side of the front panel 111. The fan 120 is located behind the air outlet 113 and is a cross flow fan extending vertically along the axis. The motor 121 is arranged on the top of the fan 120. The air duct assembly is arranged between the fan 120 and the front panel 111, and has an air duct skeleton 130, which defines a front and rear open air guiding chamber. A panel card slot 131 is provided on the air duct skeleton 130 for fixing the air duct assembly and the front panel 111. An evaporator is also provided in the housing 110. The outdoor unit is provided with a condenser, a compressor 170, and a throttling device. The evaporator and condenser, the compressor 170, and the throttling device constitute the compression refrigeration cycle system of the air conditioner 100 according to the embodiment of the present invention. Driven by the fan 120, the indoor air enters the housing 110 through the air inlet, exchanges heat with the evaporator, and then cools down (for cooling) or warms up (for heating), and then blows into the room through the air outlet 113 to achieve cooling or heating . The human body detection device 181 is configured to communicate with the wristband 300 worn by the user to obtain the temperature T of the user's human wrist. The control device 200 includes a memory 201 and a processor 202. The memory 201 stores a control program 210. When the control program 210 is executed by the processor 202, it is used to implement the control method of the air conditioner 100 in the embodiment of the present invention. The control method of the air conditioner 100 in the embodiment of the present invention includes the steps:

S602: Obtain the human wrist temperature T of the user in the area where the indoor unit of the air conditioner 100 is located;

S604: When the temperature T of the human wrist is in the preset comfortable temperature range, control the air conditioner 100 to supply air in a natural wind mode.

The human wrist temperature T is one of the places where the human body temperature directly performs best. The air conditioner 100 of the embodiment of the present invention proposes to control the air conditioner 100 to supply air in a natural wind mode when the human wrist temperature T is in the preset comfortable temperature range. When the body temperature is appropriate, the user can feel a more comfortable natural wind, improve the user's blowing experience, and effectively save energy.

The air conditioner 100 of the embodiment of the present invention further includes a swing leaf assembly 140. The swing leaf assembly 140 includes a plurality of horizontal swing leaves 160 and a plurality of vertical swing leaves 150. A plurality of oscillating blades 160 extend horizontally and are used to adjust the air outlet in the up and down direction, and are composed of a oscillating blade body 161, a connecting rod 162, a long shaft and a short shaft. The long rotating shaft is embedded in the air duct frame 130 and can rotate up and down with the pulling of the connecting rod 162. The short rotating shaft is embedded in the connecting rod 162 and can rotate with the rotation of the connecting rod 162. The swing leaf body 161 is also randomly set with protrusions 163. The protrusions 163 are preferably 2-4mm in height and are elliptical, with a short axis length of 2-4mm and a major axis length of 4-6mm. Dispersion in different directions. The multiple oscillating blades 160 can be pivoted synchronously to adjust the up and down direction of the wind. FIG. 4 is a perspective schematic view of the vertical swing blade 150 of the swing blade assembly 140 of the air conditioner 100 shown in FIG. 1. A plurality of vertical swing leaves 150 are vertically extended and used for adjusting the left and right direction of wind. Each vertical swing leaf 150 has a wave shape to disperse the vertical wind direction. The plurality of vertical swing blades 150 can be pivoted synchronously to adjust the left and right direction of the wind.

In some embodiments, in the natural wind mode of the air conditioner 100 of the embodiment of the present invention, the oscillating blade 160 is swung at a uniform speed, the swing angle of the vertical oscillating blade 150 is adjusted intermittently, and the rotation speed of the fan 120 is intermittently adjusted. The natural wind mode of the air conditioner 100 in the embodiment of the present invention is realized by differently controlling the horizontal swing blades 160, the vertical swing blades 150, and the fan 120, which can make the blowing mode closer to natural wind and improve the user's blowing experience.

In some embodiments, the step of intermittently adjusting the swing angle of the vertical swing blade 150 includes: controlling the vertical swing blade 150 to repeat multiple rotation cycles, wherein in each rotation period, the vertical swing blade 150 rotates by a preset change angle and maintains the first A preset maintenance time, and then the next rotation cycle. The step of intermittently adjusting the rotation speed of the fan 120 includes: controlling the fan 120 to repeat multiple rotation speed adjustment cycles, wherein in each rotation speed adjustment cycle, the rotation speed of the fan 120 is adjusted to a preset changing speed value and maintained for a second preset maintenance time, and then proceeded The next cycle of speed regulation.

In some embodiments, the control method of the air conditioner 100 of the embodiment of the present invention further includes: when the air conditioner 100 is in a cooling state: when the temperature T of the human wrist is higher than the preset comfortable temperature interval, controlling the horizontal and vertical blades 160 The swing blade 150 delivers air at the limit deflection angle; when the temperature T of the human wrist is lower than the preset comfortable temperature range, the swing blade 160 is controlled to deflect to the first longitudinal deflection angle and the vertical swing blade 150 is deflected to the first lateral deflection angle, where The first longitudinal deflection angle is smaller than the limit deflection angle of the swing blade 160, and the first lateral deflection angle is smaller than the limit deflection angle of the vertical swing blade 150. In the control method of the air conditioner 100 according to the embodiment of the present invention, when the temperature T of the human wrist is higher than the preset comfortable temperature range when the air conditioner 100 is in the cooling state, the horizontal and vertical

oscillating blades

160 and 150 are used to supply air at a limit deflection angle , Can achieve strong air supply and accelerate cooling; and when the temperature T of the human wrist is lower than the preset comfortable temperature range, the horizontal swing leaf 160 and the vertical swing leaf 150 provide air at a smaller angle, which can save energy. In some preferred embodiments, after controlling the horizontal swing blade 160 and the vertical swing blade 150 to supply air at the limit deflection angle for a first preset time, the method further includes: if the temperature T of the human wrist is still higher than the preset comfortable temperature range, controlling the fan 120 accelerates, and the compressor 170 of the air conditioner 100 increases the frequency; after controlling the horizontal swing blade 160 and the vertical swing blade 150 to supply air at the first longitudinal deflection angle and the first lateral deflection angle respectively for a second preset time, it also includes: The human wrist temperature T is still lower than the preset comfortable temperature range, the fan 120 is controlled to decelerate, and the compressor 170 is reduced in frequency. After the horizontal swing blade 160 and the vertical swing blade 150 have been blowing at the maximum angle/smaller angle for a period of time, if the temperature T of the human wrist is still high/low, adjust the fan 120 and compressor 170 at this time. The excessive adjustment of the fan 120 and the compressor 170 is reduced, and at the same time, it can ensure that the user obtains a satisfactory cooling effect in time.

FIG. 7 is a schematic diagram of the control flow when the air conditioner 100 shown in FIG. 1 is in a cooling state. When the air conditioner 100 is in a cooling state, the control method of the air conditioner 100 in the embodiment of the present invention includes the steps:

S704: Acquire the human wrist temperature T of the user in the area where the indoor unit of the air conditioner 100 is located.

S706: Determine whether the temperature T of the human wrist is within a preset comfortable temperature range.

S708: If the judgment result of step S706 is yes, control the air conditioner 100 to supply air in a natural wind mode: swing the horizontal pendulum blade 160 at a constant speed, adjust the swing angle of the vertical pendulum blade 150 intermittently, and adjust the rotation speed of the fan 120 intermittently.

S710: If the judgment result of step S706 is no, and the temperature T of the human wrist is higher than the preset comfortable temperature range, the horizontal and

vertical blades

160 and 150 are controlled to supply air at the limit deflection angle; and the step S710 is continuously executed. After a preset time, perform the following steps:

S712: Determine whether the temperature T of the human wrist is still higher than the preset comfortable temperature range;

S714: If the judgment result of step S712 is yes, control the fan 120 of the indoor unit to accelerate, and the compressor of the outdoor unit 170 to increase the frequency;

S716: If the judgment result of step S712 is no, return to step S706.

S720: If the judgment result of step S706 is no, and the human wrist temperature T is lower than the preset comfortable temperature range, control the yaw blade 160 to deflect to the first longitudinal deflection angle and the vertical sway leaf 150 to deflect to the first lateral deflection angle, The first longitudinal deflection angle is smaller than the limit deflection angle of the yaw blade 160, and the first lateral deflection angle is smaller than the limit deflection angle of the vertical sway blade 150; and after the second preset time is continuously executed in step S720, the following steps are performed:

S722: Determine whether the temperature T of the human wrist is still lower than the preset comfortable temperature range;

S724: If the judgment result of step S722 is yes, the fan 120 of the indoor unit is controlled to decelerate, and the compressor 170 of the outdoor unit is reduced in frequency;

S726: If the judgment result of step S722 is no, return to step S706.

In some embodiments, the control method of the air conditioner 100 of the embodiment of the present invention further includes: when the air conditioner 100 is in a heating state: when the temperature T of the human wrist is lower than the preset comfortable temperature range, controlling the yaw blade 160 and The vertical swing blade 150 delivers air at the limit deflection angle; when the human wrist temperature T is higher than the preset comfortable temperature range, the horizontal swing blade 160 is controlled to deflect to the second longitudinal deflection angle and the vertical swing blade 150 is deflected to the second lateral deflection angle, The second longitudinal deflection angle is smaller than the limit deflection angle of the swing blade 160, and the second lateral deflection angle is smaller than the limit deflection angle of the vertical swing blade 150. According to the control method of the air conditioner 100 of the embodiment of the present invention, when the air conditioner 100 is in the heating state, when the temperature T of the human wrist is lower than the preset comfortable temperature range, the horizontal swing leaf 160 and the vertical swing leaf 150 are deflected at a limit angle The air supply can achieve strong air supply and accelerate the temperature rise; when the temperature T of the human wrist is higher than the preset comfortable temperature range, the horizontal swing leaf 160 and the vertical swing leaf 150 provide air at a smaller angle, which can save energy. In some preferred embodiments, after controlling the horizontal swing blade 160 and the vertical swing blade 150 to supply air at the limit deflection angle for a third preset time, the method further includes: if the temperature T of the human wrist is still lower than the preset comfortable temperature range, controlling the fan 120 accelerates, and the compressor 170 of the air conditioner 100 increases the frequency; after controlling the yaw blade 160 and the vertical oscillating blade 150 to supply air at a second longitudinal deflection angle and a second lateral deflection angle for a fourth preset time, it also includes: If the human wrist temperature T is still higher than the preset comfortable temperature range, the fan 120 is controlled to slow down and the compressor 170 is reduced in frequency. After the horizontal swing blade 160 and the vertical swing blade 150 have been blowing at the maximum angle/smaller angle for a period of time, if the temperature T of the human wrist is still low/high, adjust the fan 120 and compressor 170 at this time. To reduce excessive adjustments to the fan 120 and the compressor 170, and at the same time to ensure that the user obtains a satisfactory heating effect in time.

FIG. 8 is a schematic diagram of the control flow when the air conditioner 100 shown in FIG. 1 is in a heating state. When the air conditioner 100 is in the heating state, the control method of the air conditioner 100 in the embodiment of the present invention includes the steps:

S804: Acquire the human wrist temperature T of the user in the area where the indoor unit of the air conditioner 100 is located.

S806: Determine whether the temperature T of the human wrist is within a preset comfortable temperature range.

S808: If the judgment result of step S806 is yes, control the air conditioner 100 to supply air in the natural wind mode: swing the horizontal pendulum blade 160 at a constant speed, adjust the swing angle of the vertical pendulum blade 150 intermittently, and adjust the rotation speed of the fan 120 intermittently.

S810: If the judgment result of step S806 is no, and the temperature T of the human wrist is lower than the preset comfortable temperature range, control the horizontal blade 160 and the vertical blade 150 to supply air at the limit deflection angle; and in step S810, the first After the preset time, perform the following steps:

S812: Determine whether the temperature T of the human wrist is still lower than the preset comfortable temperature range;

S814: If the judgment result of step S812 is yes, control the fan 120 of the indoor unit to accelerate, and the compressor of the outdoor unit 170 increases the frequency;

S816: If the judgment result of step S812 is no, return to step S806.

S820: If the judgment result of step S806 is no, and the human wrist temperature T is higher than the preset comfortable temperature range, control the swing blade 160 to deflect to the second longitudinal deflection angle and the vertical swing leaf 150 to deflect to the second lateral deflection angle, The second longitudinal deflection angle is smaller than the limit deflection angle of the yaw blade 160, and the second lateral deflection angle is smaller than the limit deflection angle of the vertical sway blade 150; and after the fourth preset time is continuously executed in step S820, the following steps are performed:

S822: Determine whether the temperature T of the human wrist is still higher than the preset comfortable temperature range;

S824: If the judgment result of step S822 is yes, the fan 120 of the indoor unit is controlled to decelerate, and the compressor 170 of the outdoor unit is reduced in frequency;

S826: If the judgment result of step S822 is no, return to step S806.

The preset comfort temperature range of the human wrist temperature T when the air conditioner 100 is in the cooling state and the preset comfort temperature range of the human wrist temperature T when the air conditioner 100 is in the heating state may be the same or different. For example, the preset comfort temperature range of the human wrist temperature T in the cooling state is 36°C≤T<37°C; and the preset comfort temperature range of the human wrist temperature T in the heating state is 36°C<T ≤37℃. For another example, the preset comfortable temperature range of the human wrist temperature T in the cooling state and the heating state are both 36°C≤T≤37°C. At the same time, the preset comfortable temperature range of the wrist temperature T of the human body of different ages and physiques may be the same or different. In some embodiments, the air conditioner 100 of the embodiment of the present invention is specifically configured with a plurality of different preset comfort temperature intervals.

The control method of the air conditioner 100 of the embodiment of the present invention can timely adjust the user's demand for the indoor environment, avoid that the user cannot achieve it when a large air volume is needed, and avoid the air outlet 113 blowing directly on people during cooling, which may cause the user to feel overcooled. The strong air supply during heating makes users feel very dry.

In some embodiments, the air conditioner 100 of the embodiment of the present invention further includes an external environment temperature detection device 182 and a distance detection device 183. The external environment temperature detecting device 182 is configured to obtain the temperature of the outdoor environment where the air conditioner 100 is located. The distance detecting device 183 is configured to communicate with the wristband 300 worn by the user to obtain the distance between the user and the air conditioner 100. FIG. 9 is a schematic flowchart of the air conditioner 100 shown in FIG. 1 entering the cooling/heating state. The method for controlling the air conditioner 100 to enter the cooling/heating state according to the embodiment of the present invention includes the following steps:

S902: Obtain the distance between the user and the indoor unit.

S904: Determine whether the distance is less than a preset distance threshold.

S906: If the judgment result of step S904 is yes, obtain the outdoor ambient temperature Tao where the air conditioner 100 is located; if the judgment result of step S904 is no, return to step S902.

S908: Determine whether the outdoor ambient temperature Tao is within a preset ambient comfortable temperature range.

S910: If the judgment result of step S908 is yes, control the air conditioner 100 not to automatically turn on, and maintain the standby state.

S912: If the judgment result of step S908 is no and the outdoor ambient temperature Tao is higher than the preset ambient comfortable temperature interval, control the air conditioner 100 to enter the cooling state;

S914: If the judgment result of step S908 is no and the outdoor ambient temperature Tao is lower than the preset ambient comfortable temperature interval, control the air conditioner 100 to enter the heating state.

When the air conditioner 100 of the embodiment of the present invention is in use, when the user wearing the smart bracelet 300 is within the Wi-Fi matching range of the indoor unit, the air conditioner 100 automatically enters the standby state, and then the outdoor environment temperature detection device 182 detects the outdoor The ambient temperature Tao is to control the air conditioner 100 to enter different states based on the comparison between the outdoor ambient temperature Tao and the preset ambient comfortable temperature range. The preset distance threshold can be set differently according to actual needs, for example, set to 100m, that is, when the distance between the user wearing the bracelet 300 and the indoor unit is less than 100m, the air conditioner 100 automatically enters the standby state. The preset environmental comfort temperature range can be set differently according to actual needs, for example, set to 10℃≤Tao≤20℃. Assuming that the outdoor ambient temperature Tao is 15°C, the air conditioner 100 remains in the standby state; assuming that the outdoor ambient temperature Tao is 25°C, the air conditioner 100 enters the cooling state, and the human body detection device 181 starts to obtain the human wrist temperature T; assuming the outdoor ambient temperature When Tao is 5°C, the air conditioner 100 enters a heating state, and the human body detection device 181 starts to obtain the temperature T of the human wrist.

The air conditioner 100 of the embodiment of the present invention first communicates with the smart bracelet 300 through the distance detection device 183 to obtain the signal distance between the user and the indoor unit, and starts standby only when the user and the indoor unit are within a preset distance threshold. The outdoor environment temperature Tao enters the cooling/heating/maintain standby, and after entering the cooling/heating, the human body detection device 181 communicates with the smart bracelet 300 to obtain the user's human wrist temperature T, and then the control device 200 Analyze and process relevant signals, and control the air conditioner 100 to supply air in natural wind mode or adjust the angle of horizontal and vertical swing blades 150, fan 120, compressor 170, etc., to achieve better, more refined, and more precise control. It saves energy, enhances user needs, improves user comfort experience, realizes users' high demand for intelligence, and achieves smarter and more comfortable air supply effects.

Hereinafter, the control method of the air conditioner 100 according to the embodiment of the present invention will be described in detail by assuming that the preset comfortable temperature range of the human wrist temperature T in the cooling state is 36°C≦T<37°C.

When the acquired human wrist temperature is 36°C≤T<37°C, the air conditioner 100 is controlled to supply air in a natural wind mode. At this time, the frequency of the compressor 170 does not change, the swing blade 160 is controlled to swing at a constant speed in the up and down direction, the vertical swing blade 150 is controlled to cyclically swing in the left and right directions, and the fan 120 is controlled to operate intermittently at variable speeds to form a stepped irregular air supply. Further, the vertical swing blade 150 repeats multiple rotation cycles within the range of its swing angle, wherein in each rotation period, the vertical swing blade 150 rotates at a first preset change angle and maintains the first preset maintenance time, and then performs the next step. One rotation cycle realizes intermittent cyclic oscillation. The swing angle range of the vertical swing blade 150 is generally 30°-150°. For example, the first preset change angle is, for example, 20°, and the first preset maintenance time is, for example, 3s, that is, it rotates 20° to the left/right every 3s. For another example, the first preset change angle is, for example, 15°, and the first preset maintenance time is, for example, 3s, that is, it rotates 15° to the left/right every 3s. It should be understood that "leftward" and "rightward" herein refer to changing the direction of rotation when the end value of the swing angle range is reached, rather than changing direction at any time. Further, the fan 120 repeats multiple rotation speed adjustment cycles within its rotation speed range, wherein in each rotation speed adjustment cycle, the rotation speed of the fan 120 is adjusted to a first preset variable rotation speed value and maintained for a second preset maintenance time, and then the next step is performed. One rotation speed adjustment cycle realizes stepped irregular air supply. The speed range of the fan 120 is, for example, 860r/min-950r/min. For example, the first preset variable rotation speed value is, for example, 20 r/min, and the second preset maintenance time is, for example, 30 s, that is, the rotation speed of the fan 120 is increased or decreased by 20 r/min every 30 s. For another example, the first preset variable rotation speed value is, for example, 25r/min, and the second preset maintenance time is, for example, 40s, that is, the rotation speed of the fan 120 is increased or decreased by 25r/min every 40s. It should be understood that the "increase" and "decrease" herein refer to changing the trend of change when the end value of the speed range is reached, rather than any change at any time.

When the obtained human wrist temperature T≥37°C, the horizontal swing leaf 160 and the vertical swing leaf 150 are controlled to supply air at the limit deflection angle. Specifically, the horizontal swing blade 160 is rotated to be substantially parallel to the horizontal plane, and the vertical swing blade 150 is rotated to be substantially parallel to the vertical plane, so that the air outlet area of the air outlet 113 is maximized. Then, continue to obtain the human wrist temperature T, and determine whether the human wrist temperature T after the first preset time is still ≥ 37°C. If the human wrist temperature T≥37℃, keep the horizontal swing blade 160 and the vertical swing blade 150 continuing to supply air at the limit deflection angle, and control the fan 120 to accelerate and the compressor 170 to increase the frequency until the obtained human wrist temperature T is at the preset comfort level After the temperature range, the fan 120 is controlled to reduce the speed to the original speed, and the compressor 170 is reduced to the original frequency. The first preset time, the increase in the speed of the fan 120, and the increase in the frequency of the compressor 170 can be set differently as needed. For example, the first preset time is 5min, 10min, 8min; the original speed of the fan 120 is 920rpm/ min, the increased speed is 30rpm/min, 20rpm/min, 25rpm/min; the original frequency of the compressor 170 is 56Hz, and the increased frequency is 5Hz, 6Hz, 10Hz.

When the obtained human wrist temperature T<36°C, control the yaw blade 160 to deflect to the first longitudinal deflection angle and the vertical sway blade 150 to deflect to the first lateral deflection angle, wherein the first longitudinal deflection angle is smaller than the limit of the yaw blade 160 The deflection angle, the first lateral deflection angle is smaller than the limit deflection angle of the vertical swing blade 150. Then, continue to obtain the human wrist temperature T, and determine whether the human wrist temperature T after the second preset time is less than 36°C. If the human wrist temperature T<36°C, keep the oscillating blade 160 to deliver air at the first longitudinal deflection angle, and the vertical oscillating blade 150 to deliver air at the first transverse deflection angle, while controlling the fan 120 to decelerate and the compressor 170 to reduce the frequency until The human wrist temperature T is in the preset comfortable temperature range, and then the fan 120 is controlled to increase the speed to the original speed, and the compressor 170 is increased to the original frequency. The first longitudinal deflection angle, the first lateral deflection angle, the second preset time, the reduced value of the fan 120 speed, and the reduced value of the compressor 170 frequency can be set differently as needed, for example, the second preset time is 5min, 10min , 8min; the original speed of the fan 120 is 920r/min, and the reduced speed values are 30r/min, 40rpm/min, and 32rpm/min; the original frequency of the compressor 170 is 56Hz, and the reduced frequency values are 6Hz, 5Hz, 8Hz.

Hereinafter, the control method of the air conditioner 100 according to the embodiment of the present invention will be described in detail with the preset comfortable temperature range of the human wrist temperature T when the heating state is set at 36°C<T≦37°C.

When the obtained human wrist temperature is 36°C<T≦37°C, the air conditioner 100 is controlled to supply air in a natural wind mode. At this time, the frequency of the compressor 170 does not change, the swing blade 160 is controlled to swing at a constant speed in the up and down direction, the vertical swing blade 150 is controlled to cyclically swing in the left and right directions, and the fan 120 is controlled to operate intermittently at variable speeds to form a stepped irregular air supply. Further, the vertical swing leaf 150 repeats multiple rotation cycles within the range of its swing angle, wherein in each rotation period, the vertical swing leaf 150 rotates at a second preset change angle and maintains a third preset maintenance time, and then performs the next step. One rotation cycle realizes intermittent cyclic oscillation. The swing angle range of the vertical swing blade 150 is generally 30°-150°. For example, the second preset changing angle is, for example, 20°, and the third preset maintaining time is, for example, 3s, that is, turning 20° to the left/right every 3s. For another example, the second preset changing angle is, for example, 25°, and the third preset maintaining time is, for example, 5s, that is, turning to the left/right by 25° every 5s. It should be understood that "leftward" and "rightward" herein refer to changing the direction of rotation when the end value of the swing angle range is reached, rather than changing direction at any time. Further, the fan 120 repeats multiple rotation speed adjustment cycles within its rotation speed range, wherein in each rotation speed adjustment cycle, the rotation speed of the fan 120 is adjusted to a second preset variable rotation speed value and maintained for a fourth preset maintenance time, and then the next step is performed. One rotation speed adjustment cycle realizes stepped irregular air supply. The speed range of the fan 120 is, for example, 860r/min-950r/min. For example, the second preset variable rotation speed value is, for example, 20 r/min, and the fourth preset maintenance time is, for example, 30 s, that is, the rotation speed of the fan 120 is increased or decreased by 20 r/min every 30 s. For another example, the second preset variable rotation speed value is, for example, 30 r/min, and the fourth preset maintenance time is, for example, 30 s, that is, the rotation speed of the fan 120 is increased or decreased by 30 r/min every 30 s. It should be understood that the "increase" and "decrease" herein refer to changing the trend of change when the end value of the speed range is reached, rather than any change at any time.

When the obtained human wrist temperature T≤36°C, the horizontal swing blade 160 and the vertical swing blade 150 are controlled to supply air at the limit deflection angle. Specifically, the horizontal swing blade 160 is rotated to be substantially parallel to the horizontal plane, and the vertical swing blade 150 is rotated to be substantially parallel to the vertical plane, so that the air outlet area of the air outlet 113 is maximized. Then, continue to obtain the human wrist temperature T, and determine whether the human wrist temperature T after the third preset time is still ≤ 36°C. If the human wrist temperature T is less than or equal to 36℃, keep the horizontal oscillating blade 160 and the vertical oscillating blade 150 continuing to supply air at the limit deflection angle, while controlling the fan 120 to accelerate and the compressor 170 to increase the frequency, until the obtained human wrist temperature T is at the preset comfort After the temperature interval, the fan 120 is controlled to reduce the speed to the original speed, and the compressor 170 is reduced to the original frequency. The third preset time, the increase in the speed of the fan 120, and the increase in the frequency of the compressor 170 can be set differently as needed. For example, the third preset time is 5min, 6min, 8min; the original speed of the fan 120 is 920rpm/ min, the increased speed is 30rpm/min, 20rpm/min, 25rpm/min; the original frequency of the compressor 170 is 76Hz, and the increased frequency is 5Hz, 6Hz, 8Hz.

When the obtained human wrist temperature T>37°C, control the yaw blade 160 to deflect to the second longitudinal deflection angle and the vertical sway blade 150 to deflect to the second lateral deflection angle, where the second longitudinal deflection angle is smaller than the limit of the yaw blade 160 The deflection angle, the second lateral deflection angle is smaller than the limit deflection angle of the vertical swing blade 150. Then, continue to obtain the human wrist temperature T, and determine whether the human wrist temperature T after the fourth preset time is still> 37°C. If the human wrist temperature T> 37°C, keep the horizontal swing blade 160 blowing at the second longitudinal deflection angle, and the vertical swing blade 150 blowing at the second horizontal deflection angle. At the same time, the fan 120 is controlled to decelerate and the compressor 170 is reduced in frequency until it is obtained. The human wrist temperature T is in the preset comfortable temperature range, and then the fan 120 is controlled to increase the speed to the original speed, and the compressor 170 is increased to the original frequency. The second longitudinal deflection angle, the second lateral deflection angle, the fourth preset time, the reduction value of the fan 120 speed, and the reduction value of the compressor 170 frequency can be set differently as needed, for example, the fourth preset time is 5min, 6min , 10min; the original speed of the fan 120 is 920r/min, and the reduced speed values are 30r/min, 20rpm/min, 25rpm/min; the original frequency of the compressor 170 is 76Hz, and the reduced frequency values are 6Hz, 5Hz, and 10Hz.

The air conditioner 100 of the embodiment of the present invention proposes that when the human wrist temperature T is in the preset comfortable temperature range, the air conditioner 100 is controlled to supply air in a natural wind mode, which can make the user feel more comfortable natural wind when the body temperature is suitable, and improve The user’s blowing experience effectively saves energy.

So far, those skilled in the art should realize that although a number of exemplary embodiments of the present invention have been illustrated and described in detail herein, they can still be disclosed according to the present invention without departing from the spirit and scope of the present invention. The content directly determines or deduces many other variations or modifications that conform to the principles of the present invention. Therefore, the scope of the present invention should be understood and deemed to cover all these other variations or modifications.

Claims

A control method of an air conditioner includes:

Acquiring the human wrist temperature of the user in the area where the indoor unit of the air conditioner is located;

When the temperature of the human wrist is in the preset comfortable temperature range, the air conditioner is controlled to supply air in a natural wind mode.
The control method of the air conditioner according to claim 1, wherein a swing leaf assembly is provided at the air outlet of the indoor unit, and the swing leaf assembly includes a swing leaf for adjusting the air outlet in the vertical direction and Vertical swing leaves with wind in the left and right directions;

In the natural wind mode, the horizontal swing blades are swung at a uniform speed, the swing angle of the vertical swing blades are adjusted intermittently, and the rotation speed of the indoor unit fan is intermittently adjusted.
The control method of an air conditioner according to claim 2, wherein:

The step of intermittently adjusting the swing angle of the vertical swing leaf includes: controlling the vertical swing leaf to repeat multiple rotation cycles, wherein in each rotation period, the vertical swing leaf rotates by a preset change angle and maintains the first Preset the maintenance time, and then proceed to the next rotation cycle;

The step of intermittently adjusting the rotation speed of the indoor unit fan includes: controlling the fan to repeat multiple rotation speed adjustment periods, wherein in each rotation speed adjustment period, the rotation speed of the fan is adjusted to a preset change rotation speed value and maintained at a second The maintenance time is preset, and then the next rotation speed adjustment cycle is performed.
The control method of an air conditioner according to claim 2, wherein, when the air conditioner is in a cooling state:

When the temperature of the human wrist is higher than the preset comfortable temperature range, controlling the horizontal swing leaf and the vertical swing leaf to supply air at a limit deflection angle;

When the temperature of the human wrist is lower than the preset comfortable temperature range, the yaw blade is controlled to deflect to a first longitudinal deflection angle and the vertical sway leaf is deflected to a first lateral deflection angle, wherein the first longitudinal deflection angle The deflection angle is smaller than the limit deflection angle of the yaw blade, and the first lateral deflection angle is smaller than the limit deflection angle of the vertical oscillating blade.
The control method of an air conditioner according to claim 4, wherein:

After controlling the horizontal swing blade and the vertical swing blade to supply air at the limit deflection angle for a first preset time, the method further includes: if the temperature of the human wrist is still higher than the preset comfortable temperature range, controlling the fan Accelerate, the compressor of the air conditioner is up-frequency;

After controlling the horizontal swing leaf and the vertical swing leaf to supply air at the first longitudinal deflection angle and the first lateral deflection angle for a second preset time, the method further includes: if the temperature of the human wrist is still low In the preset comfortable temperature interval, the fan is controlled to decelerate and the compressor is reduced in frequency.
The control method of an air conditioner according to claim 2, wherein, when the air conditioner is in a heating state:

When the temperature of the human wrist is lower than the preset comfortable temperature range, controlling the horizontal swing leaf and the vertical swing leaf to supply air at a limit deflection angle;

When the temperature of the human wrist is higher than the preset comfortable temperature range, the yaw blade is controlled to be deflected to a second longitudinal deflection angle and the vertical sway leaf is deflected to a second lateral deflection angle, wherein the second longitudinal deflection angle The deflection angle is smaller than the limit deflection angle of the yaw blade, and the second lateral deflection angle is smaller than the limit deflection angle of the vertical oscillating blade.
The control method of an air conditioner according to claim 6, wherein:

After controlling the horizontal swing blade and the vertical swing blade to supply air at a limit deflection angle for a third preset time, the method further includes: if the temperature of the human wrist is still lower than the preset comfortable temperature range, controlling the fan Accelerate, the compressor of the air conditioner is up-frequency;

After controlling the horizontal swing blade and the vertical swing blade to supply air at the second longitudinal deflection angle and the second lateral deflection angle respectively for a fourth preset time, the method further includes: if the temperature of the human wrist is still high In the preset comfortable temperature interval, the fan is controlled to decelerate and the compressor is reduced in frequency.
The air conditioner control method according to claim 1, wherein before the step of obtaining the temperature of the human wrist, the method further comprises:

Acquiring the outdoor ambient temperature where the air conditioner is located;

Control the air conditioner to maintain a standby state or control the air conditioner to enter a cooling state or a heating state based on the outdoor environment temperature, wherein

When the outdoor environment temperature is higher than a preset environment comfortable temperature interval, controlling the air conditioner to enter the cooling state;

When the outdoor ambient temperature is in the preset ambient comfortable temperature interval, controlling the air conditioner to maintain the standby state;

When the outdoor ambient temperature is lower than the preset ambient comfortable temperature interval, controlling the air conditioner to enter the heating state.
The control method of an air conditioner according to claim 8, wherein before acquiring the outdoor ambient temperature, the method further comprises:

Acquiring the distance between the user and the indoor unit;

When the distance is less than a preset distance threshold, controlling the air conditioner to enter the standby state.
An air conditioner, including:

The human body detection device is configured to communicate with the wristband worn by the user to obtain the temperature of the user's human wrist;

The control device includes a memory and a processor, and a control program is stored in the memory. When the control program is executed by the processor, it is used to implement the control method according to any one of claims 1-9.