阅读说明：本技术 可逆风管机及其出风控制方法 (Reversible air duct machine and air outlet control method thereof ) 是由 续真杰 王元 石永军 于 2021-06-17 设计创作，主要内容包括：本发明属于风管机技术领域,旨在解决现有风管机对室内环境温度调节能力有限的问题。为此目的,本发明提供了一种可逆风管机的出风控制方法和可逆风管机,可逆风管机包括机壳、风扇、换热器和导风组件,机壳上形成有前风口和下风口,风扇、换热器和导风组件均设置在机壳内,导风组件和风扇共同设置为能够使可逆风管机在前出风模式和下出风模式之间切换；出风控制方法包括：根据室内环境温度或者输入的换热模式确定可逆风管机的当前出风模式；判断室内在其高度方向上和/或前后方向上的两个设定区域之间的温差是否大于或等于第一预设温度；若是,则切换可逆风管机的出风模式。本发明使得室内空间中所有位置的温度尽可能均衡,提高用户的舒适度。(The invention belongs to the technical field of air duct machines, and aims to solve the problem that the indoor environment temperature adjusting capacity of the existing air duct machine is limited. The reversible air duct machine comprises a shell, a fan, a heat exchanger and an air guide assembly, wherein a front air opening and a lower air opening are formed in the shell, the fan, the heat exchanger and the air guide assembly are all arranged in the shell, and the air guide assembly and the fan are jointly arranged to enable the reversible air duct machine to be switched between a front air outlet mode and a lower air outlet mode; the air outlet control method comprises the following steps: determining the current air outlet mode of the reversible air duct machine according to the indoor environment temperature or the input heat exchange mode; judging whether the temperature difference between two set areas in the height direction and/or the front and back direction of the room is greater than or equal to a first preset temperature or not; if so, the air outlet mode of the reversible air duct machine is switched. The invention can balance the temperature of all the positions in the indoor space as much as possible and improve the comfort of the user.)

1. The air outlet control method of the reversible air duct machine is characterized in that the reversible air duct machine comprises a casing, a fan, a heat exchanger and an air guide assembly, wherein a front air inlet and a lower air inlet are formed in the casing, the fan, the heat exchanger and the air guide assembly are all arranged in the casing, and the air guide assembly and the fan are jointly arranged to enable the reversible air duct machine to be switched between a front air outlet mode and a lower air outlet mode;

the air outlet control method comprises the following steps:

determining the current air outlet mode of the reversible air duct machine according to the indoor environment temperature or the input heat exchange mode;

judging whether the temperature difference between two set areas in the height direction and/or the front and back direction of the room is greater than or equal to a first preset temperature or not;

if so, switching the air outlet mode of the reversible air duct machine.

2. The wind outlet control method according to claim 1, wherein after the step of "switching the wind outlet mode of the reversible wind pipe machine", the wind outlet control method further comprises:

judging whether the temperature difference between two set areas in the height direction and/or the front and back direction of the room is less than or equal to a second preset temperature or not;

if so, recovering the original air outlet mode of the reversible air duct machine;

wherein the second preset temperature is less than the first preset temperature.

3. The outlet air control method according to claim 2, wherein in a case where it is determined whether the temperature difference between two set regions in the height direction of the room is greater than or equal to the first preset temperature, or in a case where it is determined whether the temperature difference between two set regions in the height direction of the room is less than or equal to the second preset temperature, the two set regions are two height regions separated by one height region;

wherein the number of height zones is at least three.

4. The air outlet control method according to claim 3, wherein the number of the height areas is four, and the height areas sequentially include: the reversible air duct machine comprises a first height area, a second height area, a third height area and a fourth height area, wherein the reversible air duct machine is located in the first height area, one of the two set areas is the second height area, and the other set area is the fourth height area.

5. The outlet air control method according to claim 2, wherein in a case where it is determined whether the temperature difference between two set regions in the front-rear direction of the room is greater than or equal to the first preset temperature or whether the temperature difference between two set regions in the front-rear direction of the room is less than or equal to the second preset temperature, the two set regions are two front-rear regions adjacent to or spaced apart by at least one front-rear region.

6. The air outlet control method according to claim 5, wherein the number of the front and rear regions is five, and the front and rear regions are, in order from front to rear: the reversible air duct machine comprises a first front-back area, a second front-back area, a third front-back area, a fourth front-back area and a fifth front-back area, wherein the reversible air duct machine is located in the first front-back area, one of the two set areas is the fifth front-back area, and the other one of the two set areas is any one of the first front-back area, the second front-back area, the third front-back area and the fourth front-back area.

7. The wind outlet control method according to claim 1, wherein the step of determining the current wind outlet mode of the reversible wind pipe machine according to the indoor ambient temperature or the inputted heat exchange mode comprises:

if the indoor environment temperature is greater than or equal to a first temperature threshold value or the input heat exchange mode is a refrigeration mode, determining that the current air outlet mode of the reversible air duct machine is a front air outlet mode;

if the indoor environment temperature is less than or equal to a second temperature threshold value or the input heat exchange mode is a heating mode, determining that the current air outlet mode of the reversible air duct machine is a lower air outlet mode;

wherein the first temperature threshold is greater than the second temperature threshold.

8. The air-out control method according to claim 1, wherein the step of determining whether the temperature difference between two set regions in the height direction and/or the front-rear direction of the indoor space is greater than or equal to a first preset temperature includes:

whether the temperature difference between two height areas in the height direction of the indoor body is larger than or equal to the first preset temperature is judged first, and then whether the temperature difference between two front areas and two rear areas in the front-rear direction of the indoor body is larger than or equal to the first preset temperature is judged.

9. The utility model provides a reversible tuber pipe machine, its characterized in that, reversible tuber pipe machine includes casing, fan, heat exchanger and wind-guiding subassembly, be formed with preceding wind gap and wind gap down on the casing, the fan the heat exchanger with wind-guiding subassembly all sets up in the casing, wind-guiding subassembly with the fan sets up jointly to be able to make reversible tuber pipe machine switches between preceding air-out mode and air-out mode down.

10. The reversible duct machine of claim 9, wherein the air deflection assembly includes a first upper air deflection plate, a second upper air deflection plate, a first lower air deflection plate, a second lower air deflection plate, an upper air deflection sleeve, and a lower air deflection sleeve,

the first upper air deflector and the second upper air deflector are both connected with the upper air guide cover, the first lower air deflector and the second lower air deflector are both connected with the lower air guide cover,

when the air outlet mode of the reversible air duct machine is a front air outlet mode, the first upper air guide plate and the second upper air guide plate can enable the upper air guide cover to form the upper wall of a front air outlet duct through rotation, the first lower air guide plate and the second lower air guide plate can enable the lower air guide cover to form the lower wall of the front air outlet duct through rotation,

when the air outlet mode of the reversible air duct machine is a lower air outlet mode, the first upper air guide plate and the second upper air guide plate can enable the upper air guide cover to form an upper wall of a lower air outlet duct through rotation, and the first lower air guide plate and the second lower air guide plate can enable the lower air guide cover to form a lower wall of the lower air outlet duct through rotation.

Technical Field

The invention belongs to the technical field of air duct machines, and particularly provides a reversible air duct machine and an air outlet control method thereof.

Background

The air duct type air conditioner is a short name of an air duct type air conditioner, utilizes an air conditioner connecting air duct to convey cold air indoors, and is widely applied to shopping centers, office buildings, hotels and the like.

The existing air duct machine is generally of a structure with one side for air inlet and one side for air outlet, the air direction is adjusted by changing the opening degree of a panel/air guide plate, and then the indoor environment temperature is changed, but the panel/air guide plate is relatively small, the adjustment capability of the air direction is limited, and the indoor environment temperature is difficult to be adjusted in a large range and quickly.

Therefore, there is a need in the art for a new reversible air duct machine and an air outlet control method thereof to solve the above problems.

Disclosure of Invention

In order to solve the problems in the prior art, namely to solve the problem that the existing air duct machine has limited capacity of adjusting the indoor environment temperature, the invention provides an air outlet control method of the reversible air duct machine, wherein the reversible air duct machine comprises a shell, a fan, a heat exchanger and an air guide assembly, a front air port and a lower air port are formed on the shell, the fan, the heat exchanger and the air guide assembly are all arranged in the shell, and the air guide assembly and the fan are jointly arranged to enable the reversible air duct machine to be switched between a front air outlet mode and a lower air outlet mode; the air outlet control method comprises the following steps: determining the current air outlet mode of the reversible air duct machine according to the indoor environment temperature or the input heat exchange mode; judging whether the temperature difference between two set areas in the height direction and/or the front and back direction of the room is greater than or equal to a first preset temperature or not; if so, the air outlet mode of the reversible air duct machine is switched.

In a preferred technical solution of the above-mentioned air outlet control method, after the step of "switching the air outlet mode of the reversible air duct machine", the air outlet control method further includes: judging whether the temperature difference between two set areas in the height direction and/or the front and back direction of the room is less than or equal to a second preset temperature or not; if so, recovering the original air outlet mode of the reversible air duct machine; wherein the second preset temperature is lower than the first preset temperature.

In a preferred embodiment of the above air outlet control method, in a case where it is determined whether a temperature difference between two set areas in a height direction of the indoor space is greater than or equal to a first preset temperature, or in a case where it is determined whether a temperature difference between two set areas in a height direction of the indoor space is less than or equal to a second preset temperature, the two set areas are two height areas separated by one height area; wherein the number of height zones is at least three.

In a preferred technical solution of the above air outlet control method, the number of the height areas is four, and the height areas sequentially include: the reversible air duct machine comprises a first height area, a second height area, a third height area and a fourth height area, wherein the reversible air duct machine is located in the first height area, one of the two set areas is the second height area, and the other one is the fourth height area.

In a preferred embodiment of the above-mentioned air outlet control method, in a case where it is determined whether the temperature difference between two set areas in the front-rear direction of the room is greater than or equal to a first preset temperature, or in a case where it is determined whether the temperature difference between two set areas in the front-rear direction of the room is less than or equal to a second preset temperature, the two set areas are two front-rear areas adjacent to or separated by at least one front-rear area.

In a preferred technical solution of the above air outlet control method, the number of the front and rear regions is five, and the front and rear regions are, in order from front to rear: the reversible air duct machine is located in the first front-back area, one of the two set areas is the fifth front-back area, and the other one of the two set areas is any one of the first front-back area, the second front-back area, the third front-back area and the fourth front-back area.

In the preferred technical solution of the above air-out control method, "determining the current air-out mode of the reversible air duct machine according to the indoor ambient temperature or the inputted heat exchange mode" includes: if the indoor environment temperature is greater than or equal to the first temperature threshold value or the input heat exchange mode is a refrigeration mode, determining that the current air outlet mode of the reversible air duct machine is a front air outlet mode; if the indoor environment temperature is less than or equal to the second temperature threshold value or the input heat exchange mode is a heating mode, determining that the current air outlet mode of the reversible air duct machine is a lower air outlet mode; wherein the first temperature threshold is greater than the second temperature threshold.

In a preferred embodiment of the above-mentioned air-out control method, the step of "determining whether the temperature difference between two set regions in the indoor space in the height direction and/or the front-rear direction thereof is greater than or equal to a first preset temperature" includes: whether the temperature difference between two height areas in the height direction of the indoor body is larger than or equal to a first preset temperature or not is judged, and then whether the temperature difference between two front areas and two rear areas in the front-rear direction of the indoor body is larger than or equal to the first preset temperature or not is judged.

In another aspect, the present invention further provides a reversible duct machine, which includes a casing, a fan, a heat exchanger, and an air guiding assembly, wherein a front air opening and a lower air opening are formed on the casing, the fan, the heat exchanger, and the air guiding assembly are all disposed in the casing, and the air guiding assembly and the fan are jointly disposed to enable the reversible duct machine to switch between a front air outlet mode and a lower air outlet mode.

In the preferable technical scheme of the reversible air duct machine, the air guide assembly comprises a first upper air guide plate, a second upper air guide plate, a first lower air guide plate, a second lower air guide plate, an upper air guide cover and a lower air guide cover, the first upper air guide plate and the second upper air guide plate are both connected with the upper air guide cover, the first lower air guide plate and the second lower air guide plate are both connected with the lower air guide cover, when the air outlet mode of the reversible air duct machine is a front air outlet mode, the first upper air guide plate and the second upper air guide plate can enable the upper air guide cover to form the upper wall of the front air outlet duct through rotation, the first lower air guide plate and the second lower air guide plate can enable the lower air guide cover to form the lower wall of the front air outlet duct through rotation, when the air outlet mode of the reversible air duct machine is the lower air outlet mode, the first upper air guide plate and the second upper air guide plate can enable the upper air guide cover to form the upper wall of the lower air outlet duct through rotation, and the first lower air guide plate and the second lower air guide plate can enable the lower air guide cover to form the lower wall of the lower air outlet duct through rotation.

In the preferred technical scheme of the invention, the air duct machine is enabled to output air in a proper air output mode through the indoor environment temperature or the heat exchange mode selected by a user, and then the air output mode of the reversible air duct machine is selectively switched through the comparison result of the temperature difference between two set areas of the reversible air duct machine in the height direction and/or the front-back direction of the indoor space and the first preset temperature, so that the temperatures of all positions in the indoor space are balanced as much as possible, and the comfort level of the user is improved.

Furthermore, the reversible air duct machine is selectively switched back to the original air outlet mode through the comparison result of the temperature difference between two set areas in the height direction and/or the front-back direction of the reversible air duct machine in the indoor space and the second preset temperature, the temperature difference of different indoor areas can be kept in a relatively comfortable range by fully utilizing the sinking of the refrigerating air and the floating of the heating air, and the comfort level of a user is further improved.

Further, the temperature difference control in the indoor height direction can keep the head and foot temperature of the user in a relatively comfortable temperature range, and the comfort degree of the user is further improved.

Further, the temperature difference control in the indoor front-back direction can enable the user to be kept in a relatively comfortable temperature range when the user moves to different positions indoors, and the comfort degree of the user is further improved.

The reversible air duct machine provided by the invention can realize the switching of the front air outlet duct and the lower air outlet duct in the shell through the air guide assembly, so that the reversible air duct machine can smoothly blow out the air forwards when the air is discharged forwards, and smoothly blow out the air downwards when the air is discharged downwards, thereby reducing the wind resistance, improving the speed of regulating the indoor environment temperature and improving the user experience.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of a reversible duct machine of the present invention;

FIG. 2 is a schematic structural view (front outlet) of an embodiment of the reversible ducted air conditioner of the present invention;

FIG. 3 is a schematic structural view (lower outlet) of an embodiment of the reversible ducted air conditioner of the present invention;

FIG. 4 is a flow chart of an air outlet control method of the reversible air duct machine of the present invention;

fig. 5 is a flowchart of an embodiment of an air outlet control method of a reversible air duct machine according to the present invention.

Detailed Description

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.

It should be noted that in the description of the present invention, the terms "in", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "inside", "outside", and the like indicate directions or positional relationships based on those shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," and "fifth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Based on the problem that the existing air duct machine is limited in capacity of adjusting the indoor environment temperature, the invention provides a reversible air duct machine and an air outlet control method thereof, and aims to enable the temperature of all positions in an indoor space to be balanced as much as possible and improve the comfort level of a user.

Specifically, as shown in fig. 1 to 3, the reversible duct machine of the present invention includes a casing 1, a fan 2, a heat exchanger 3, and an air guiding assembly 4, a front air inlet 11 and a lower air inlet 12 are formed on the casing 1, the fan 2, the heat exchanger 3, and the air guiding assembly 4 are all disposed in the casing 1, and the air guiding assembly 4 and the fan 2 are jointly disposed to enable the reversible duct machine to switch between a front air outlet mode and a lower air outlet mode. The fan 2 can change the flow direction of air by switching between forward rotation and reverse rotation, for example, the fan 2 can introduce air from the lower air inlet 12 and then blow out air from the front air inlet 11 during forward rotation, introduce air from the front air inlet 11 and then blow out air from the lower air inlet 12 during reverse rotation, so as to realize switching between forward air outlet and downward air outlet, the air guide assembly 4 is configured to switch the air duct in the casing 1 between the forward air outlet duct and the downward air outlet duct, so that the air guide assembly 4 forms the forward air outlet duct during forward air outlet to make air smoothly blow out from the front air inlet 11, and the air guide assembly 4 forms the downward air outlet duct during downward air outlet to make air smoothly blow out from the lower air outlet 12. Those skilled in the art can flexibly set the positions of the fan 2 and the heat exchanger 3 in the cabinet 1 in practical applications, for example, in the structure shown in fig. 1 to 3, when the reversible duct machine is out of wind, the fan 2 is located on the upstream side of the heat exchanger 3, and when the reversible duct machine is out of wind, the fan 2 is located on the downstream side of the heat exchanger 3.

In a preferred case, the wind guiding assembly 4 includes a first upper wind guiding plate 41, a second upper wind guiding plate 42, a first lower wind guiding plate 43, a second lower wind guiding plate 44, an upper wind guiding cover 45 and a lower wind guiding cover 46, wherein the first upper wind guiding plate 41 and the second upper wind guiding plate 42 are both connected to the upper wind guiding cover 45, the first lower wind guiding plate 43 and the second lower wind guiding plate 44 are both connected to the lower wind guiding cover 46, when the wind outlet mode of the reversible wind turbine is the front wind outlet mode, the first upper wind guiding plate 41 and the second upper wind guiding plate 42 can rotate to enable the upper wind guiding cover 45 to form an upper wall of the front wind outlet channel, when the wind outlet mode of the reversible wind turbine is the lower wind outlet mode, the first upper wind guiding plate 41 and the second upper wind guiding plate 42 can rotate to enable the upper wind guiding cover 45 to form an upper wall of the lower wind outlet channel, the first lower wind deflector 43 and the second lower wind deflector 44 can make the lower wind scooper 46 form the lower wall of the lower wind outlet duct by rotation. The driving source of the first upper air guiding plate 41, the second upper air guiding plate 42, the first lower air guiding plate 43, and the second lower air guiding plate 44 may adopt a motor, and the two upper air guiding plates may share one motor, for example, the motor drives the first upper air guiding plate 41 and the second upper air guiding plate 42 to rotate through different gear pairs, and of course, the first upper air guiding plate 41 and the second upper air guiding plate 42 may also adopt separate motors to drive. Similarly, the two lower air deflectors can share one motor, for example, the motor drives the first lower air deflector 43 and the second lower air deflector 44 to rotate through different gear pairs, and of course, the first lower air deflector 43 and the second lower air deflector 44 can also be driven by separate motors. In the above, the gear pair may be replaced with another mechanism capable of transmitting rotation, such as a crank link.

Optionally, as shown in fig. 1 to 3, an end of the first upper wind deflector 41 and an end of the second upper wind deflector 42 are both connected to the upper wind scooper 45, an end of the first lower wind deflector 43 and an end of the second lower wind deflector 44 are both connected to the lower wind scooper 46, the first upper wind deflector 41 and the second upper wind deflector 42 are respectively located on two sides (left and right sides in the drawing) of the top of the fan 2, the first upper wind deflector 41 is located near the front wind gap 11, the second upper wind deflector 42 is located near the lower wind gap 12, the first lower wind deflector 43 and the second lower wind deflector 44 are respectively located on two sides (left and right sides in the drawing) of the bottom of the fan 2, the first lower wind deflector 43 is located near the front wind gap 11, and the second lower wind deflector 44 is located near the lower wind gap 12. When the reversible duct machine is out of wind, as shown in fig. 2, the first upper air deflector 41 is in its first position (e.g., substantially horizontal position), the second upper air deflector 42 is in its first position (e.g., substantially vertical position), the first lower air deflector 43 is in its first position (e.g., substantially vertical position), and the second lower air deflector 44 is in its first position (e.g., substantially horizontal position), so that air is smoothly introduced from the lower air inlet 12 and blown out from the front air inlet 11; when the reversible duct machine is blowing out, as shown in fig. 3, the first upper air deflector 41 is in its second position (e.g., substantially vertical position), the second upper air deflector 42 is in its second position (e.g., substantially horizontal position), the first lower air deflector 43 is in its second position (e.g., inclined position), and the second lower air deflector 44 is in its second position (e.g., substantially vertical position), so that air is smoothly introduced from the front air opening 11 and blown out from the lower air opening 12. In the above, the substantially horizontal direction means a small angle (for example, within 20 °) or completely horizontal with the horizontal direction, the substantially vertical direction means a small angle (for example, within 20 °) or completely vertical with the vertical direction, and the oblique direction may be an angle of 30 ° to 60 ° with the horizontal or vertical direction, although the above-mentioned angle range is only exemplary, and the skilled person can flexibly set the angle in practical applications. When the first upper air deflector 41, the second upper air deflector 42, the first lower air deflector 43 and the second lower air deflector 44 are respectively located at their respective first positions, the upper air guiding cover 45 forms an upper wall of the front air-out duct, and the lower air guiding cover 46 forms a lower wall of the front air-out duct; when the first upper air guiding plate 41, the second upper air guiding plate 42, the first lower air guiding plate 43 and the second lower air guiding plate 44 are respectively located at their respective second positions, the upper air guiding cover 45 forms an upper wall of the lower air outlet duct, and the lower air guiding cover 46 forms a lower wall of the lower air outlet duct. It should be noted that, a person skilled in the art may flexibly set the lengths of the upper wind scooper 45 and the lower wind scooper 46, so that all wind channels for conveying air may be formed in the casing 1, or the wind guide channel for conveying air may be formed in the casing 1, and then the wind guide channel and a part of the inner wall of the casing 1 together form all wind channels.

As shown in fig. 4, the air outlet control method of the present invention includes: determining the current air outlet mode of the reversible air duct machine according to the indoor environment temperature or the input heat exchange mode; judging whether the temperature difference between two set areas in the height direction and/or the front and back direction of the room is greater than or equal to a first preset temperature or not; if so, switching the air outlet mode of the reversible air duct machine; if not, the current air outlet mode is continuously kept. In the above, only the temperature difference between two set regions in the indoor height direction may be determined, only the temperature difference between two set regions in the indoor front-rear direction may be determined, and also the temperature difference between two set regions in the indoor height direction may be determined, and the temperature difference between two set regions in the indoor front-rear direction may be determined, and then the temperature difference to be determined may be compared with the first preset temperature. The first preset temperature is preferably 3 ℃, but in other examples, the first preset temperature may be other temperature values, such as 5 ℃.

Preferably, with continuing reference to fig. 4, after the step of "switching the wind outlet mode of the reversible wind pipe machine", the wind outlet control method of the present invention further includes: judging whether the temperature difference between two set areas in the height direction and/or the front and back direction of the room is less than or equal to a second preset temperature or not; if so, recovering the original air outlet mode of the reversible air duct machine; if not, keeping the switched air outlet mode; wherein the second preset temperature is lower than the first preset temperature. In the above, in the same way as the above, only the temperature difference between two set regions in the indoor height direction may be determined, also the temperature difference between two set regions in the indoor front-rear direction may be determined, and also the temperature difference between two set regions in the indoor height direction may be determined, and the temperature difference between two set regions in the indoor front-rear direction may be determined, and then the temperature difference to be determined is compared with the second preset temperature. The second preset temperature is preferably 2 ℃, however, in other examples, the second preset temperature may be other temperature values, such as 1 ℃.

Preferably, the step of determining the current air outlet mode of the reversible air duct machine according to the indoor environment temperature or the input heat exchange mode includes: if the indoor environment temperature is greater than or equal to the first temperature threshold value or the input heat exchange mode is a refrigeration mode, determining that the current air outlet mode of the reversible air duct machine is a front air outlet mode; if the indoor environment temperature is less than or equal to the second temperature threshold value or the input heat exchange mode is a heating mode, determining that the current air outlet mode of the reversible air duct machine is a lower air outlet mode; wherein the first temperature threshold is greater than the second temperature threshold. When the indoor environment temperature is greater than or equal to the first temperature threshold value, the indoor environment temperature is relatively hot, the reversible air duct machine can automatically detect the indoor environment temperature through an indoor temperature sensor, then a refrigeration mode is executed, and a front air-out mode is adopted by utilizing the principle that cold air sinks during refrigeration; when the indoor environment temperature is smaller than or equal to the second temperature threshold value, the indoor environment temperature is indicated to be cold, the reversible air duct machine can automatically detect the indoor environment temperature through the indoor temperature sensor, then the heating mode is executed, and the lower air-out mode is adopted by utilizing the principle that hot air floats upwards during heating. Or the user inputs a cooling instruction or a heating instruction to the reversible air duct machine through a remote controller, a control panel or a mobile terminal such as a mobile phone. It should be noted that if the indoor ambient temperature is greater than or equal to the first temperature threshold value but the user inputs the heating mode, it is preferable to operate the reversible air duct machine according to the mode input by the user, or to send a confirmation to the user and then to perform the heating mode after the confirmation by the user, which is advantageous in that if the indoor ambient temperature is high but the user still has a heating demand, the reversible air duct machine can operate according to the demand of the user. Similarly, if the indoor ambient temperature is less than or equal to the second temperature threshold but the user inputs a cooling mode, it is preferable to operate the reversible duct machine in the mode input by the user, or to send a confirmation to the user and then perform the cooling mode after the confirmation by the user, which is advantageous in that the reversible duct machine can operate as desired by the user if the indoor ambient temperature is low but the user still has a cooling need. The first temperature threshold is preferably 24 ℃, and the second temperature threshold is preferably 18 ℃, although in other examples, the first temperature threshold and the second temperature threshold may be other temperature values.

Preferably, in the case where it is judged whether or not the temperature difference between two set areas in the height direction thereof is greater than or equal to a first preset temperature, or in the case where it is judged whether or not the temperature difference between two set areas in the height direction thereof is less than or equal to a second preset temperature, the two set areas are two height areas separated by one height area; wherein the number of height zones is at least three. By separating the height areas, the temperature difference between the different height areas in the indoor height direction can be more accurately reflected. More preferably, the number of height areas is four, and from high to low, in order: the reversible air duct machine comprises a first height area, a second height area, a third height area and a fourth height area, wherein the reversible air duct machine is located in the first height area, one of the two set areas is the second height area, and the other one is the fourth height area. In practical applications, the height of the room may be divided into four regions by dividing the height of the room equally, or the height of the room may be divided into four regions by dividing the height of the room unequally. The second height area may include an area where the head of the user is located, the fourth height area may include an area where the feet of the user are located, and the height areas may be defined when the reversible air duct machine leaves a factory, or defined by detecting the height of the user, or defined by a human input mode of the user. In the above, the temperature sensors can be respectively arranged in different indoor height areas for detection, and then the temperature sensors transmit the detected temperature data to the reversible air duct machine through the communication module on the reversible air duct machine.

Preferably, in the case where it is judged whether or not the temperature difference between two set regions in the front-rear direction of the room is greater than or equal to a first preset temperature, or in the case where it is judged whether or not the temperature difference between two set regions in the front-rear direction of the room is less than or equal to a second preset temperature, the two set regions are two front-rear regions adjacent to or spaced apart by at least one front-rear region. More preferably, the number of front and rear regions is five, and from front to rear in this order: the reversible air duct machine is located in the first front-back area, one of the two set areas is the fifth front-back area, and the other one of the two set areas is any one of the first front-back area, the second front-back area, the third front-back area and the fourth front-back area. By comparing the front and rear area farthest from the reversible air duct machine with any other front and rear area, the temperature difference between different front and rear areas in the indoor front and rear direction can be more accurately reflected. In practical applications, the distance between the front and rear sides of the room may be equally divided into five regions, or the distance between the front and rear sides of the room may be unequally divided into five regions. The front and rear areas can be defined when the reversible air duct machine leaves the factory, or defined by a user through a manual input mode. In the above, the temperature sensors may be respectively disposed in different front and rear areas of the room to perform detection, and then the temperature sensors transmit detected temperature data to the reversible air duct machine through the communication module on the reversible air duct machine.

Preferably, the step of "judging whether or not the temperature difference between two set areas in the height direction and/or the front-rear direction thereof in the chamber is greater than or equal to a first preset temperature" includes: whether the temperature difference between two height areas in the height direction of the indoor body is larger than or equal to a first preset temperature or not is judged, and then whether the temperature difference between two front areas and two rear areas in the front-rear direction of the indoor body is larger than or equal to the first preset temperature or not is judged. Specifically, as shown in fig. 5, it is first determined whether the temperature difference between two height regions in the height direction thereof in the room is greater than or equal to a first preset temperature; if not, keeping the current air outlet mode; if so, switching the air outlet mode of the reversible air duct machine; after switching, judging whether the temperature difference between two set areas in the height direction of the indoor space is less than or equal to a second preset temperature; if not, keeping the switched air outlet mode; if so, recovering the original air outlet mode of the reversible air duct machine; after the recovery, whether the temperature difference between two front and rear areas in the front and rear direction of the indoor unit is greater than or equal to a first preset temperature is judged; if not, keeping the current air outlet mode; if so, switching the air outlet mode of the reversible air duct machine; after switching, judging whether the temperature difference between two set areas in the front and back directions of the indoor space is less than or equal to a second preset temperature; if not, keeping the switched air outlet mode; if so, recovering the original air outlet mode of the reversible air duct machine. In the above, it is first determined whether the temperature difference between two height regions in the height direction thereof in the room is greater than or equal to a first preset temperature; if not, it can be directly judged whether or not the temperature difference between the two front and rear regions in the front and rear directions of the chamber is greater than or equal to the first preset temperature (this is the case shown in fig. 5).

The technical solution of the present invention is explained below with reference to a specific embodiment.

The room is divided into four regions in the height direction, namely A1, A2, A3 and A4, wherein A1 is less than 0.3m, A2 is 0.3-1m, A3 is 1-1.8m, A4 is more than 1.8m, the room is divided into five regions in the front-back direction, namely B1, B2, B3, B4 and B5, and the reversible air duct machine is positioned in A4 in the height direction and positioned in B1 in the front-back direction.

When the indoor environment temperature is detected to be more than or equal to 24 ℃ or a user selects a refrigeration mode, the reversible air duct machine operates the refrigeration mode, and adopts a front air outlet mode according to the principle that the cold air density is high and can sink automatically. And detecting the indoor environment temperature, comparing the temperature difference between A1 and A3 with 3 ℃, if the temperature difference is more than or equal to 3 ℃, switching the reversible air duct machine into a lower air outlet mode, quickly reducing the indoor bottom temperature, and recovering the front air outlet mode when the temperature difference between A1 and A3 is less than or equal to 2 ℃, so as to ensure that the head and foot temperature difference of a user is in the optimal temperature range. And then comparing the temperature difference between B5 and any one of B1-B4 with 3 ℃, if the temperature difference is more than or equal to 3 ℃, switching the reversible air duct machine into a lower air outlet mode to form surrounding air, quickly reducing the average temperature difference, improving the comfort level, and recovering the front air outlet mode when the temperature difference between B5 and any one of B1-B4 is less than or equal to 2 ℃.

When the indoor environment temperature is detected to be less than or equal to 18 ℃ or a user selects a heating mode, the reversible air duct machine operates the heating mode, and adopts a lower air outlet mode according to the principle that the hot air density is small and the air can float upwards. And detecting the indoor environment temperature, comparing the temperature difference between A1 and A3 with 3 ℃, if the temperature difference is more than or equal to 3 ℃, switching the reversible air duct machine into a front air outlet mode, quickly reducing the indoor bottom temperature, and recovering the lower air outlet mode when the temperature difference between A1 and A3 is less than or equal to 2 ℃, so as to ensure that the user is in the optimal temperature range when moving. And then comparing the temperature difference between B5 and any one of B1-B4 with 3 ℃, if the temperature difference is more than or equal to 3 ℃, switching the reversible air duct machine into a front air outlet mode to form surrounding air, quickly reducing the average temperature difference, improving the comfort level, and recovering the lower air outlet mode when the temperature difference between B5 and any one of B1-B4 is less than or equal to 2 ℃.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.