WO-2026091946-A1 - AIR CONDITIONER AND CONTROL METHOD THEREFOR

WO2026091946A1WO 2026091946 A1WO2026091946 A1WO 2026091946A1WO-2026091946-A1

Abstract

Provided are an air conditioner and a control method therefor. The air conditioner comprises: a main body (100), internally provided with an air duct (110), the air duct (110) having an air inlet (111), a front air outlet (112) and a lower air outlet (113), the front air outlet (112) being located on the front side wall of the main body (100), and the lower air outlet (113) being located at the front portion of the lower side wall of the main body (100); and a plurality of switch doors, which are sequentially arranged in the up-down direction and are all swingably arranged at the front air outlet (112), wherein the plurality of switch doors are configured to be able to jointly close the front air outlet (112), the lowermost switch door is configured to be able to close the lower air outlet (113), and on the basis of the plurality of switch doors jointly closing the front air outlet (112), the lower air outlet (113) is in an open state.

Inventors

SU, Yunyu
NIE, Wanghui
DENG, YONG
ZENG, Jinguo

Assignees

广东美的制冷设备有限公司
美的集团股份有限公司

Dates

Publication Date: 20260507
Application Date: 20250917
Priority Date: 20241031

Claims (20)

An air conditioner, comprising: The main body has an internal air duct, which includes an air inlet, a front air outlet, and a bottom air outlet. The front air outlet is located on the front side wall of the main body, and the bottom air outlet is located on the front part of the lower side wall of the main body. Multiple switches are arranged sequentially in the vertical direction and can all be swung at the front air outlet. The multiple switches are configured to close the front air outlet together. The switch at the bottom is configured to close the lower air outlet. When the multiple switches close the front air outlet together, the lower air outlet is in the open state.
According to claim 1, in the air conditioner, at least two of the switch doors are configured to open the front air outlet together, and based on the fact that at least two of the switch doors open the front air outlet together, the switch door located at the bottom is also configured to open and close the lower air outlet.
According to claim 1 or 2, the air conditioner has a first annular mating surface facing the interior of the air duct, and the air outlet wall has a second annular mating surface facing the interior of the air duct. The plurality of the switch doors are located on the side of the first annular mating surface and the second annular mating surface facing the interior of the air duct. Since multiple doors together close the front air outlet, the adjacent ends of adjacent doors are sealed and abutted, and the other ends of multiple doors are sealed and abutted with the first annular mating surface. Since the lower air outlet is closed by the switch door located at the bottom, each end of the switch door located at the bottom is sealed and abuts against the second annular mating surface.
The air conditioner according to claim 1 or 2, wherein the plurality of switch doors include a first switch door and a second switch door, the first switch door is located above the second switch door, and the first switch door has a first position and a second position, and the second switch door has a third position and a fourth position; Given that the first switch door is in the second position and the second switch door is in the fourth position, the second switch door opens the lower air outlet and, together with the first switch door, closes the front air outlet. Given that the first switch door is in the first position and the second switch door is in the third position, the second switch door closes the lower air outlet and, together with the first switch door, opens the front air outlet.
The air conditioner according to claim 4, wherein the second switch door further has a fifth position; Given that the first switch door is in the first position and the second switch door is in the fifth position, the second switch door opens the lower air outlet and, together with the first switch door, opens the front air outlet.
According to claim 5, the air conditioner, wherein the first switch door, the second switch door, the first position, the second position, the third position, the fourth position and the fifth position are all located inside the air duct, and the fifth position is located between the third position and the fourth position.
According to claim 4, the air conditioner has a first annular mating surface facing the interior of the air duct, and the air outlet wall has a second annular mating surface facing the interior of the air duct. The first switch door and the second switch door are located on the side of the first annular mating surface and the second annular mating surface facing the interior of the air duct. Based on the first switch door being in the second position and the second switch door being in the fourth position, the adjacent ends of the first switch door and the second switch door are sealed and abutted together, and the other ends of the first switch door and the second switch door are sealed and abutted together with the first annular mating surface. Since the second switch door is in the third position, each end of the second switch door is in sealed contact with the second annular mating surface.
According to claim 7, the air conditioner is provided with a second hinge portion at the lower part of the first annular mating surface, and a second hinge mating portion is provided at one end of the second switch door near the lower part of the first annular mating surface, and the second hinge portion is hingedly connected to the second hinge mating portion. Since the second switch door is in the fourth position, the lower end of the second switch door is in sealed contact with the lower part of the first annular mating surface, and the upper end of the second switch door is in sealed contact with the lower end of the first switch door in the second position. Since the second switch door is in the third position, the front end of the second switch door is in sealing contact with the front part of the second annular mating surface, and the rear end of the second switch door is in sealing contact with the rear part of the second annular mating surface.
According to claim 7, the air conditioner is provided with a first hinge portion on the upper part of the first annular mating surface, and a first hinge mating portion is provided at one end of the first switch door near the upper part of the first annular mating surface, and the first hinge portion is hingedly connected to the first hinge mating portion. Since the first switch door is in the second position, the upper part of the first switch door is sealed and abuts against the upper part of the first annular mating surface, and the lower part of the first switch door is sealed and abuts against the upper part of the second switch door in the fourth position. Since the first switch door is in the first position, the front end of the first switch door abuts against the upper side wall of the air duct inside the air duct.
According to claim 7, the air conditioner is provided with a first hinge portion between the upper part and the lower part of the first annular mating surface, and a first hinge mating portion is provided at one end of the first switch door away from the upper part of the first annular mating surface, and the first hinge portion is hingedly connected to the first hinge mating portion. Since the first switch door is in the second position, the lower end of the first hinged part of the first switch door is sealed and abuts against the upper end of the second switch door in the fourth position, and the upper end of the first switch door is sealed and abuts against the upper part of the first annular mating surface. Since the first switch door is in the first position, the front end of the first switch door is spaced apart from both the upper part and the lower part of the first annular mating surface within the air duct.
According to claim 1 or 2, the air conditioner wherein the dimension of the front air outlet in the vertical direction is greater than the dimension of the lower air outlet in the front-to-back direction.
According to claim 11, the air conditioner includes a first switch door and a second switch door, the first switch door is located above the second switch door and can be swayably disposed at the front air outlet, and the first switch door has a first position and a second position, and the second switch door has a third position and a fourth position. Based on the first switch door being in the second position and the second switch door being in the fourth position, the second switch door opens the lower air outlet and, together with the first switch door, closes the front air outlet. Furthermore, the second switch door in the fourth position has a larger vertical dimension than the first switch door in the second position. Given that the first switch door is in the first position and the second switch door is in the third position, the second switch door closes the lower air outlet and, together with the first switch door, opens the front air outlet.
According to claim 12, the air conditioner, wherein the dimension of the main body in the front-to-back direction is not greater than 450 mm, and the air conditioner further includes: A heat exchanger is disposed in the air duct. In the front-to-back direction, the lower air outlet is located between the heat exchanger and the front air outlet. The lower part of the heat exchanger is inclined from bottom to top and forward to avoid the swing trajectory of the second switch door, and the upper part of the heat exchanger is inclined from bottom to top and backward to avoid the swing trajectory of the first switch door.
The air conditioner according to claim 13, wherein the heat exchanger is in a bent shape.
According to the air conditioner of claim 13, the dimension between the heat exchanger and the lower air outlet in the front-to-back direction is no more than 30 mm, the rear part of the lower air outlet wall protrudes upward inside the air duct, the rear side of the protrusion is a guide surface, and the guide surface extends upward at an angle from back to front.
According to the air conditioner of claim 12, the front air outlet has a vertical dimension A of 80mm to 150mm, the lower air outlet has a front-to-back dimension B of 40mm to 80mm, the second switch door in the fourth position has a vertical dimension C of 35mm to 110mm, and the first switch door in the second position has a vertical dimension D of 30mm to 80mm.
A control method for an air conditioner as described in any one of claims 1 to 16, comprising: Obtain the air outlet command from the air conditioner; Based on the fact that the air outlet command is the second air outlet command, multiple of the opening and closing doors are controlled to jointly close the front air outlet; Based on the fact that the air outlet command is the first air outlet command, the switch door located at the bottom is controlled to close the lower air outlet.
According to the control method of claim 17, wherein, based on the air outlet command being a second air outlet command, after controlling the multiple switches to jointly close the front air outlet for a set time, the lowest switch is controlled to close the lower air outlet.
According to the control method of claim 17 or 18, after controlling the lowermost switch door to close the lower air outlet, at least one other switch door is further controlled to open the front air outlet.
According to the control method of claim 19, the step of controlling the plurality of the open/closed doors to jointly close the front air outlet includes: Controlling the first door to swing to the second position, and controlling the second door to swing to the fourth position; the step of controlling the lowermost door to close the lower air outlet includes: Controlling the second switch door to swing to the third position; the step of controlling at least one other switch door to open the front air outlet includes: Control the first door to swing to the first position.

Description

An air conditioner and its control method This application claims priority to Chinese patent applications filed on October 31, 2024, with application number 2024115497275 entitled "An Air Conditioner and a Control Method Thereof", 2024115498244 entitled "An Air Conditioner and a Control Method Thereof", 2024226622503 entitled "An Air Conditioner", 2024226622166 entitled "An Air Conditioner", and 2024115497082 entitled "A Control Method Thereof", the contents of which are to be construed as incorporated herein by reference. Technical Field This application relates to, but is not limited to, air conditioning equipment technology, specifically referring to an air conditioner and its control method. Background Technology Ductless air conditioners are typically installed in ceiling-mounted units with side-discharge airflow. The air outlet is paired with an engineering panel to diffuse the airflow and achieve cooling or heating functions. However, when heating, the hot air from a side-discharge ductless air conditioner cannot reach the floor. Even if the air guide grille is tilted downwards at its maximum angle, hot air cannot be delivered directly below the duct unit, resulting in problems such as a large blind spot in airflow, large temperature differences between different areas of the room, and poor heating performance. Summary of the Invention The following is an overview of the subject matter described in detail herein. This overview is not intended to limit the scope of the claims. The air conditioner provided in this application embodiment includes: a main body having an internal air duct, the air duct having an air inlet, a front air outlet, and a lower air outlet, the front air outlet being located on the front side wall of the main body, and the lower air outlet being located on the front part of the lower side wall of the main body; and a plurality of switch doors arranged sequentially in the vertical direction and each of them being swingably disposed at the front air outlet, the plurality of switch doors being configured to be able to jointly close the front air outlet, the lowermost switch door being configured to be able to close the lower air outlet, and the lower air outlet being in an open state when the plurality of switch doors jointly close the front air outlet. The air conditioner control method provided in this application includes: Obtain the air outlet command from the air conditioner; Based on the fact that the air outlet command is the second air outlet command, multiple of the opening and closing doors are controlled to jointly close the front air outlet; Based on the fact that the air outlet command is the first air outlet command, the switch door located at the bottom is controlled to close the lower air outlet. The air conditioner control method provided in this application includes: Obtain the operating mode of the air conditioner and obtain the air outlet command issued by the user; Based on the operating mode being heating mode and the user issuing an airflow command to the air conditioner, then: Based on the fact that the air outlet command is the second air outlet command, multiple of the opening and closing doors are controlled to jointly close the front air outlet; Based on the fact that the air outlet command is the first air outlet command, the switch door located at the bottom is controlled to close the lower air outlet. The air conditioner control method provided in this application includes: Obtain the operating mode of the air conditioner and obtain the air outlet command issued by the user; Based on the operating mode being cooling mode and the user issuing an airflow command to the air conditioner, then: Based on the fact that the air outlet command is the second air outlet command, multiple of the switch doors are controlled to close the front air outlet together, and after a set time, the switch door located at the bottom is controlled to close the lower air outlet. Based on the fact that the air outlet command is the first air outlet command, the switch door located at the bottom is controlled to close the lower air outlet. The air conditioner control method provided in this application includes: Obtain the operating mode of the air conditioner and obtain the air outlet command issued by the user; If the operating mode is cooling mode and no air outlet command is received from the user, then multiple doors are controlled to close the front air outlet together, and after a set time, the bottom door is controlled to close the lower air outlet. Other features and advantages of this application will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the application. Other advantages of this application can be realized and obtained by means of the solutions described in the description and the accompanying drawings. After reading and understanding the accompanying diagrams and detailed descripti