A wall-mounted air conditioner

Abstract

The utility model provides a wall -hanging air conditioner, including indoor unit and filter device, the indoor unit forms with upper air inlet and lower air inlet, and the filter device includes filter screen, is equipped with filter device at upper air inlet, and the indoor unit is in upper air inlet lower air outlet mode, and the filter screen is in working condition, the indoor unit is in lower air inlet upper air outlet mode, and the filter screen is in non - working state, is equipped with filter device at lower air inlet, and the indoor unit is in upper air inlet lower air outlet mode, and the filter screen is in non - working state, the indoor unit is in lower air inlet upper air outlet mode, and the filter screen is in working condition, when, filter screen is in working condition, can filter the air of current, improves air quality, filter screen is in non - working state, but does not filter air, reduces air resistance.

Description

Technical Field

[0001] This utility model belongs to the field of air conditioning technology, and in particular relates to a wall-mounted air conditioner. Background Technology

[0002] In existing wall-mounted air conditioner indoor units, reversible airflow can be achieved by adjusting the direction of the fan blades, meaning air can enter from the upper vent and exit from the lower vent, or vice versa, to meet various airflow needs. A filter is fixedly installed at the air vent. When air is entering, the filter improves the quality of the incoming air; however, when air is exiting, the filter increases air resistance and affects the airflow volume. Furthermore, when the air vent switches from intake to exhaust, dust on the filter can enter the room, reducing indoor air quality. Summary of the Invention

[0003] In view of this, the present invention provides a wall-mounted air conditioner to solve the problems in existing wall-mounted air conditioners that cannot synchronously adjust the state of the filter according to the air intake and exhaust of the air outlet, resulting in the filter affecting the air output effect and dust on the filter entering the room and reducing indoor air quality.

[0004] This utility model provides a wall-mounted air conditioner, including an indoor unit with an upper air vent and a lower air vent. The indoor unit is configured with an upper air intake and lower air outlet configuration (air intake through the upper air vent and air outlet through the lower air vent) and a lower air intake and upper air outlet configuration (air intake through the lower air vent and air outlet through the upper air vent). The wall-mounted air conditioner further includes a filter device, which includes a filter screen. The filter screen has a working state for filtering the air flowing through it and a non-working state for not filtering the air. The filter device is installed at the upper air vent, and the filter screen is configured such that: when the indoor unit is in the upper air intake and lower air outlet mode, the filter screen is in the working state; when the indoor unit is in the lower air intake and upper air outlet mode, the filter screen is in the non-working state; and / or, The filter device is provided at the downwind vent, and the filter screen is configured such that: when the indoor unit is in the up-inlet and down-outlet mode, the filter screen is in the non-working state; when the indoor unit is in the down-inlet and up-outlet mode, the filter screen is in the working state.

[0005] Further optionally, the filter screen is configured such that: when the filter screen is in the working state, the filter screen completely covers the air vent where the filter device is located; when the filter screen is in the non-working state, the filter screen is located on one side of the air vent where the filter device is located. Wherein, when the filter device is installed at the upper air vent, the air vent where the filter device is located is the upper air vent; when the filter device is installed at the lower air vent, the air vent where the filter device is located is the lower air vent.

[0006] Further optionally, the filtration device includes a filtration unit, the filtration unit including a filter support, a filter screen, a main winding mechanism and a slave winding mechanism; the filter support includes a support head end and a support tail end disposed opposite to each other in the length direction of the filter support, and the filter screen is movably disposed on the filter support; The main reel mechanism is located near the first end of the bracket and includes a rotatable main reel; the slave reel mechanism is located near the last end of the bracket and includes a rotatable slave reel. The filter screen includes a filter screen head end and a filter screen tail end arranged opposite to each other in the length direction of the filter screen; the filter screen head end is wound on the main winding shaft, and the filter screen tail end is provided with a traction rope, which is wound on the slave winding shaft; or, the filter screen head end is provided with a traction rope, which is wound on the main winding shaft, and the filter screen tail end is wound on the slave winding shaft. By controlling the rotation of the main roller, the filter screen can be switched between the working state and the non-working state.

[0007] Further optionally, the filtering device further includes a drive motor, the output shaft of which is drivenly connected to the main reel; the slave reel mechanism further includes a coil spring, one end of which is fixed and the other end is connected to the slave reel. When the drive motor drives the main winding shaft to rotate in the forward direction and causes the coil spring to store energy, the filter screen is wound onto the main winding shaft; when the entire filter screen is located on the main winding shaft, the filter screen is in a non-working state. When the drive motor drives the main roller to rotate in the opposite direction and the coil spring releases energy, the filter screen rolls towards the slave roller; when the filter screen completely covers the air outlet where the filter device is located, the filter screen is in working condition.

[0008] Further optionally, the filtration device includes a plurality of filtration units, which are arranged sequentially along the length of the air outlet where the filtration device is located; the plurality of filtration units are integrally comprised of a first end and a second end along the length of the air outlet where the filtration device is located. The main rollers of two adjacent filter units are connected by an intermediate shaft; the output shaft of the drive motor is driven to the end of the main roller near the first end or the end of the main roller near the second end. When the drive motor is running, it can synchronously rotate the main rollers of multiple filter units, thereby switching the filter screens of multiple filter units between the non-working state and the working state.

[0009] Further optionally, the indoor unit includes a casing and a panel, the top of the casing forms the upper air vent, and the lower end of the casing forms the lower air vent; the panel is disposed inside the casing, and the panel includes an upper bracket located at the upper air vent and / or a lower bracket located at the lower air vent. The upper bracket has an upper mounting groove, and the lower bracket has a lower mounting groove; When the filter device is installed at the upper air vent, the filter screen bracket of the filter device is installed in the upper mounting groove; when the filter device is installed at the lower air vent, the filter screen bracket of the filter device is installed in the lower mounting groove.

[0010] Further optionally, the indoor unit includes a housing, a fan blade, and a volute assembly, with the upper air vent formed at the top of the housing and the lower air vent formed at the bottom of the housing; the fan blade is rotatably disposed inside the housing; The volute assembly is disposed inside the housing and near the downwind outlet; the volute assembly includes a volute and a volute tongue, which surround the outside of the fan blade and form an air duct connecting the upwind outlet and the downwind outlet. By controlling the direction of the fan blades, the indoor unit can achieve both top-intake and bottom-outtake airflow modes.

[0011] Further optionally, the air duct includes a first air duct for upper air intake and lower air outlet and a second air duct for lower air intake and upper air outlet; An indoor heat exchanger is provided inside the casing and above the fan blades; The volute tongue includes a first movable volute tongue and a second movable volute tongue that can rotate about the axis of rotation of the fan blade; When both the first movable volute tongue and the second movable volute tongue are close to the indoor heat exchanger, the first movable volute tongue, the second movable volute tongue, and the volute shell together form the first air duct; when both the first movable volute tongue and the second movable volute tongue are close to the downdraft, the first movable volute tongue, the second movable volute tongue, and the volute shell together form the second air duct.

[0012] Alternatively, the front side of the housing may be provided with a panel; The downwind opening includes a first downwind area and a second downwind area arranged opposite to each other. The first downwind area is located at the bottom of the housing, and the second downwind area is located between the first downwind area and the lower end of the panel. When both the first and second movable volutes are close to the indoor heat exchanger, the first air duct connects the upper air outlet and the first and second lower air zones; when both the first and second movable volutes are close to the lower air outlet, the second air duct connects the upper air outlet and the first lower air zone.

[0013] Further optionally, the upwind area is provided with a movable upper air guide plate, the first downwind area is provided with a movable first lower air guide plate, and the second downwind area is provided with a movable second lower air guide plate; When the upper air guide plate opens the upper air outlet, the first lower air guide plate opens the first lower air area, and the second lower air guide plate opens the second lower air area, the indoor unit can be in the upper air inlet and lower air outlet mode. When the upper air guide plate opens the upper air outlet, the first lower air guide plate opens the first lower air zone, and the second lower air guide plate closes the second lower air zone, the indoor unit is in the lower air intake and upper air outlet mode.

[0014] Compared with the prior art, the main advantages of this utility model are: When air is intake from the upwind vent, the filter at the upwind vent is in working condition, which filters the incoming air and improves the quality of the incoming air. When air is exhaust from the upwind vent, the filter at the upwind vent is in a non-working state, and air does not flow through the filter. The filter does not affect the exhaust effect of the upwind vent and prevents dust on the filter at the upwind vent from entering the room and causing a decrease in indoor air quality. When air is intake from the downwind vent, the filter at the downwind vent is in working condition, which filters the incoming air and improves the quality of the incoming air. When air is exhaust from the downwind vent, the filter at the downwind vent is in a non-working state, and air does not flow through the filter. The filter does not affect the exhaust effect of the downwind vent and prevents dust on the filter at the downwind vent from entering the room and causing a decrease in indoor air quality. Attached Figure Description

[0015] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0017] Figure 1 This is a schematic diagram of the internal structure of the indoor unit embodiment provided by this utility model; Figure 2 This is a schematic diagram of the external structure of an indoor unit embodiment provided by this utility model; Figure 3a An exploded structural diagram of an embodiment of the filtration device provided by this utility model; Figure 3b A schematic diagram of the assembly structure of an embodiment of the filtration device provided by this utility model; Figure 3c A schematic diagram of the assembly structure of an embodiment of the filtration device provided by this utility model for switching from a working state to a non-working state; Figure 4 A schematic diagram of the structure of an embodiment of the filter unit provided by this utility model; Figure 5a A schematic diagram of the airflow path of an embodiment of the indoor unit provided by this utility model when operating with an air intake and air outlet configuration; Figure 5b A schematic diagram of the airflow path of an embodiment of the indoor unit provided by this utility model when it is in the air intake and air outlet mode during operation; In the picture: 1-Indoor unit; 11-Casing; 111-Upper air vent; 112-Lower air vent; 1121-First lower air zone; 1122-Second lower air zone; 121-Panel; 122-Panel body; 1221-Upper mounting slot; 1222-Lower mounting slot; 131-Fan blade; 132-Indoor heat exchanger; 14-Upper air guide plate; 151-First lower air guide plate; 152-Second lower air guide plate; 16-Volume; 171-First movable volute tongue; 172-Second movable volute tongue; 181-First air duct; 182-Second air duct; 2-Filtering device; 21-Filtering unit; 22-Filter screen; 221-Filter screen head end; 222-Filter screen tail end; 23-Filter screen support; 231-Support head end; 232-Support tail end; 24-Main winding mechanism; 241-Main winding shaft; 242-Main winding shaft housing; 243-Main bearing; 25-Slave winding mechanism; 251-Slave winding shaft; 252-Slave winding shaft housing; 253-Slave bearing; 26-Drive motor; 27-Intermediate shaft. Detailed Implementation

[0018] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] The terminology used in the embodiments of this utility model is for the purpose of describing particular embodiments only and is not intended to limit the utility model. The singular forms “a,” “said,” and “the” used in the embodiments of this utility model and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise; “multiple” generally includes at least two, but does not exclude the inclusion of at least one.

[0020] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0021] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0022] In existing wall-mounted air conditioner indoor units, the air can be discharged in both directions by adjusting the direction of the fan blades, thus meeting various air discharge needs. A filter screen is fixedly installed at the air outlet. When air is entering the air outlet, the filter screen can filter the incoming air and improve the air quality. However, when air is exiting the air outlet, the filter screen provides resistance to the outgoing air, affecting the air volume. At the same time, when the air outlet switches from air intake to air discharge, dust on the filter screen will enter the room. This utility model creatively provides a wall-mounted air conditioner, including an indoor unit and a filter device. The indoor unit has an upper air vent and a lower air vent, and the filter device includes a filter screen. A filter is installed at the air inlet. When the indoor unit is in the top air intake and bottom air outlet mode, the filter is in working condition; when the indoor unit is in the bottom air intake and top air outlet mode, the filter is in non-working condition. A filter is installed at the downdraft outlet. When the indoor unit is in the top air intake and bottom air outlet mode, the filter is not in operation; when the indoor unit is in the bottom air intake and top air outlet mode, the filter is in operation. When the filter is in working condition, it filters the air flowing through it, improving air quality; when the filter is not in working condition, it does not filter the air, reducing air resistance.

[0023] like Figures 1 to 5bAs shown, this embodiment provides a wall-mounted air conditioner, particularly a wall-mounted air conditioner with reversible airflow at both the top and bottom. The wall-mounted air conditioner includes an indoor unit 1, with an upper air vent 111 formed on the upper side and a lower air vent 112 formed on the lower side. The indoor unit 1 has an upper air intake and lower air outlet configuration, where air enters through the upper air vent 111 and exits through the lower air vent 112, and a lower air intake and upper air outlet configuration, where air enters through the lower air vent 112 and exits through the upper air vent 111. The wall-mounted air conditioner has a cooling mode and a heating mode. When the wall-mounted air conditioner is in cooling mode, the indoor unit 1 operates in the lower air intake and upper air outlet configuration; when the wall-mounted air conditioner is in heating mode, the indoor unit 1 operates in the upper air intake and lower air outlet configuration. The wall-mounted air conditioner also includes a filter device 2, which includes a filter screen 22; the filter screen 22 has a working state that can filter the air flowing through it and a non-working state that does not filter the air. A filter device 2 is installed at the air inlet 111, and the filter screen 22 is configured such that: when the indoor unit 1 is in the top air intake and bottom air outlet mode, the filter screen 22 is in the working state; when the indoor unit 1 is in the bottom air intake and top air outlet mode, the filter screen 22 is in the non-working state; and / or, A filter device 2 is provided at the downdraft 112. The filter screen 22 is configured such that: when the indoor unit 1 is in the up-inlet and down-outlet mode, the filter screen 22 is in a non-working state; when the indoor unit 1 is in the down-inlet and up-outlet mode, the filter screen 22 is in a working state. Depending on the air intake and exhaust method of the indoor unit 1, the filter 22 at the air intake vent can be activated to improve the intake air quality by filtering the incoming air. Conversely, the filter 22 at the air exhaust vent can be deactivated and hidden to avoid obstructing the exhaust air, thus improving the exhaust effect and ensuring smooth airflow. By intelligently switching the filter 22's state, both intake filtration and unobstructed exhaust air are achieved, solving the problem in existing wall-mounted air conditioners where the indoor unit 1 cannot simultaneously achieve both intake quality and exhaust effect. This reduces exhaust resistance and noise, addressing the issues of abnormal noise and excessive noise in existing wall-mounted air conditioners. The design is simple, versatile, and low-cost.

[0024] Furthermore, the filter 22 is configured such that: when the filter 22 is in working condition, the filter 22 completely covers the air vent where the filter device 2 is located, and can filter the air flowing through the air vent to improve the air intake quality; when the filter 22 is not in working condition, the filter 22 is located on one side of the air vent where the filter device 2 is located, and the filter 22 does not filter the air and has no effect on the air flow. When a filter device 2 is installed at the upwind vent 111, the vent where the filter device 2 is located is the upwind vent 111; when a filter device 2 is installed at the downwind vent 112, the vent where the filter device 2 is located is the downwind vent 112.

[0025] The specific structure of the filter device 2 is described below. The filter device 2 includes a filter unit 21, which includes a filter support 23, a filter screen 22, a main winding mechanism 24, and a slave winding mechanism 25. The filter support 23 includes a support head end 231 and a support tail end 232 that are arranged opposite to each other in the length direction of the filter support 23. The filter screen 22 is movably arranged on the filter support 23. The main reel mechanism 24 is located near the first end 231 of the bracket and includes a rotatable main reel 241, and the slave reel mechanism 25 is located near the last end 232 of the bracket and includes a rotatable slave reel 251. The filter screen 22 includes a filter screen head end 221 and a filter screen tail end 222 disposed opposite to each other in the length direction of the filter screen 22; the filter screen head end 221 is wound on the main winding shaft 241, and the filter screen tail end 222 is provided with a traction rope, which is wound on the slave winding shaft 251; or, the filter screen head end 221 is provided with a traction rope, which is wound on the main winding shaft 241, and the filter screen tail end 222 is wound on the slave winding shaft 251; By controlling the rotation of the main roller 241, the filter screen 22 can be switched between working and non-working states, and the movement of the filter screen 22 is reliable. Preferably, the first end 221 of the filter screen is wound on the main roller 241, and the last end 222 of the filter screen is provided with a traction rope; Furthermore, the filter device 2 also includes a drive motor 26, the output shaft of which is drivenly connected to the main reel 241; the reel mechanism 25 also includes a coil spring, one end of which is fixed and the other end is connected to the reel 251. When air needs to be discharged from the corresponding air outlet, the drive motor 26 drives the main roller 241 to rotate in the forward direction and causes the coil spring to store energy, and the filter screen 22 is wound onto the main roller 241; when the filter screen 22 is entirely on the main roller 241, the filter screen 22 is in a non-working state; at this time, the filter screen 22 does not filter the air and has no resistance to the air discharge. When air needs to be introduced into the corresponding air vent, the drive motor 26 drives the main roller 241 to rotate in the opposite direction and the coil spring releases energy, causing the filter screen 22 to roll onto the secondary roller 251; when the filter screen 22 completely covers the air vent where the filter device 2 is located, the filter screen 22 is in working condition; at this time, the filter screen 22 can filter the air. The forward rotation of the main scroll 241 is either clockwise or counterclockwise, and the reverse rotation of the main scroll 241 is either clockwise or counterclockwise.

[0026] Specifically, the length direction of the filter support 23 is parallel to the width direction of the air outlet (upper air outlet 111 or lower air outlet 112); the filter 22 is detachably mounted on the filter support 23, which facilitates quick disassembly and cleaning, reduces costs, and solves the problem of complex disassembly and cleaning of the filter 22 in existing wall-mounted air conditioners. The main winding mechanism 24 also includes a main winding housing 242 and a main bearing 243. The main winding housing 242 is configured to have a main winding cavity and a main opening communicating with the main winding cavity. The main winding 241 is disposed in the main winding cavity through the main opening, and the main winding 241 is rotatably disposed in the main winding cavity through the main bearing 243. When the filter screen 22 is wound on the main winding 241, it is located in the main winding cavity. The reel mechanism 25 also includes a reel housing 252 and a bearing 253. The reel housing 252 is configured to have a reel cavity and a reel opening communicating with the reel cavity. The reel 251 is disposed in the reel cavity through the reel opening and is rotatably disposed in the reel cavity through the bearing 253. When the filter screen 22 is wound on the reel 251, it is located in the reel cavity.

[0027] The filter device 2 includes multiple filter units 21, which are arranged sequentially along the length of the air outlet where the filter device 2 is located; the multiple filter units 21 are generally included at the first end and the second end along the length of the air outlet where the filter device 2 is located. The main rollers 241 of two adjacent filter units 21 are connected by an intermediate shaft 27; the output shaft of the drive motor 26 is driven to the end of the main roller 241 near the first end or the end of the main roller 241 near the second end. When the drive motor 26 is running, it can drive the main roller 241 of multiple filter units 21 to rotate synchronously, thereby switching the filter screens 22 of multiple filter units 21 between non-working and working states; shortening the movement stroke of the filter screens 22, increasing the switching speed of the filter device 2 between the two states, and reducing costs.

[0028] In this embodiment, the filter device 2 includes two filter units 21, and the filter screens 22 of the two filter units 21 have the same structure.

[0029] The following describes the structure required for the filter device 2 to be installed at the upper air vent 111 or the lower air vent 112. The indoor unit 1 includes a housing 11 and a panel 122. The top of the housing 11 forms an upper air vent 111, and the lower end of the housing 11 forms a lower air vent 112. The panel 122 is installed inside the housing 11, and the panel 122 includes an upper bracket located at the upper air vent 111 and / or a lower bracket located at the lower air vent 112. The upper bracket has an upper mounting groove 1221, and the lower bracket has a lower mounting groove 1222; When a filter device 2 is installed at the upper air outlet 111, the filter screen bracket 23 of the filter device 2 is installed in the upper mounting groove 1221; when a filter device 2 is installed at the lower air outlet 112, the filter screen bracket 23 of the filter device 2 is installed in the lower mounting groove 1222. Specifically, the filter support 23 is slidably disposed in the upper mounting groove 1221 or the lower mounting groove 1222 along the front-back direction of the housing 11.

[0030] The following describes the structure required for indoor unit 1 to achieve both top air intake and bottom air exhaust and bottom air intake and top air exhaust. Indoor unit 1 includes a housing 11, a fan blade 131, and a volute assembly. An upper air vent 111 is formed at the top of the housing 11, and a lower air vent 112 is formed at the bottom of the housing 11. The fan blade 131 is rotatably disposed inside the housing 11. The volute assembly is located inside the housing 11 and near the downwind outlet 112; the volute assembly includes a volute 16 and a volute tongue, which surround the outside of the fan blade 131 and form an air duct connecting the upwind outlet 111 and the downwind outlet 112. By controlling the direction of the fan blades 131, the indoor unit 1 can achieve both top air intake and bottom air exhaust modes.

[0031] Furthermore, the air duct includes a first air duct 181 for upward air intake and downward air outlet and a second air duct 182 for downward air intake and upward air outlet; An indoor heat exchanger 132 is provided inside the casing 11 and above the fan blades 131; The volute tongue includes a first movable volute tongue 171 and a second movable volute tongue 172 that can rotate around the shaft of the fan blade 131; When both the first movable volute tongue 171 and the second movable volute tongue 172 are close to the indoor heat exchanger 132, the first movable volute tongue 171, the second movable volute tongue 172 and the volute casing 16 together form the first air duct 181; the filter screen 22 at the upper air outlet 111 is in working condition, and the filter screen 22 at the lower air outlet 112 is in non-working condition, so the indoor unit 1 can operate in an upper air inlet and lower air outlet mode; this improves the air intake quality, reduces the air outlet resistance, and prevents dust on the filter screen 22 at the lower air outlet 112 from entering the room with the air outlet; When both the first movable volute tongue 171 and the second movable volute tongue 172 are close to the downwind outlet 112, the first movable volute tongue 171, the second movable volute tongue 172, and the volute casing 16 together form the second air duct 182; the filter screen 22 at the downwind outlet 112 is in working condition, and the filter screen 22 at the upwind outlet 111 is in non-working condition, so the indoor unit 1 can operate in a downwind air intake and upwind air outlet mode; this improves the air intake quality, reduces the air outlet resistance, and prevents dust on the filter screen 22 at the upwind outlet 111 from entering the room with the air outlet.

[0032] Specifically, a panel 121 is provided on the front side of the housing 11; The downwind vent 112 includes a first downwind area 1121 and a second downwind area 1122 arranged opposite to each other. The first downwind area 1121 is located at the bottom of the housing 11, and the second downwind area 1122 is located between the first downwind area 1121 and the lower end of the panel 121. When the first movable volute 171 and the second movable volute 172 are both close to the indoor heat exchanger 132 and are flush, the first air duct 181 connects the upper air outlet 111 and the first leeward zone 1121 and the second leeward zone 1122. When the lower ends of the first movable volute tongue 171 and the second movable volute tongue 172 are both close to the downwind opening 112, the second air duct 182 connects the upwind opening 111 and the first downwind zone 1121.

[0033] In addition, the upwind vent 111 is provided with a movable upper air guide plate 14, the first downwind zone 1121 is provided with a movable first lower air guide plate 151, and the second downwind zone 1122 is provided with a movable second lower air guide plate 152. When the upper air guide plate 14 opens the upper air outlet 111, the first lower air guide plate 151 opens the first lower air zone 1121 and the second lower air guide plate 152 opens the second lower air zone 1122, the indoor unit 1 can be in the upper air inlet and lower air outlet mode. When the upper air guide plate 14 opens the upper air outlet 111, the first lower air guide plate 151 opens the first lower air zone 1121 and the second lower air guide plate 152 closes the second lower air zone 1122, the indoor unit 1 is in the lower air intake and upper air outlet mode.

[0034] Exemplary embodiments of this disclosure have been specifically shown and described above. It should be understood that this disclosure is not limited to the detailed structures, arrangements, or implementations described herein; rather, this disclosure is intended to cover various modifications and equivalent arrangements contained within the spirit and scope of the appended claims.

Claims

1. A wall-mounted air conditioner, comprising an indoor unit (1), the indoor unit (1) having an upper air inlet (111) and a lower air inlet (112), the indoor unit (1) being provided with an upper air inlet and lower air outlet configuration where air enters through the upper air inlet (111) and exits through the lower air outlet (112), and a lower air inlet and upper air outlet configuration where air enters through the lower air outlet (112) and exits through the upper air inlet (111); characterized in that, The wall-mounted air conditioner also includes a filter device (2), which includes a filter screen (22); the filter screen (22) has a working state that can filter the air flowing through it and a non-working state that does not filter the air. The filter device (2) is provided at the upper air vent (111), and the filter screen (22) is configured such that: when the indoor unit (1) is in the upper air intake and lower air outlet mode, the filter screen (22) is in the working state; when the indoor unit (1) is in the lower air intake and upper air outlet mode, the filter screen (22) is in the non-working state. And / or, the filter device (2) is provided at the downflow (112), and the filter screen (22) is configured such that: when the indoor unit (1) is in the upflow and downflow mode, the filter screen (22) is in the non-working state; when the indoor unit (1) is in the downflow and upflow mode, the filter screen (22) is in the working state.

2. The wall-mounted air conditioner according to claim 1, characterized in that, The filter screen (22) is configured such that: when the filter screen (22) is in the working state, the filter screen (22) completely covers the air vent where the filter device (2) is located; when the filter screen (22) is in the non-working state, the filter screen (22) is located on one side of the air vent where the filter device (2) is located. When the filter device (2) is installed at the upper air vent (111), the air vent where the filter device (2) is located is the upper air vent (111); when the filter device (2) is installed at the lower air vent (112), the air vent where the filter device (2) is located is the lower air vent (112).

3. The wall-mounted air conditioner according to claim 1, characterized in that, The filtration device (2) includes a filtration unit (21), which includes a filter support (23), a filter screen (22), a main winding mechanism (24), and a secondary winding mechanism (25). The filter support (23) includes a support head end (231) and a support tail end (232) arranged opposite to each other in the length direction of the filter support (23). The filter screen (22) is movably arranged on the filter support (23). The main reel mechanism (24) is located near the first end (231) of the bracket and includes a rotatable main reel (241), and the slave reel mechanism (25) is located near the last end (232) of the bracket and includes a rotatable slave reel (251). The filter screen (22) includes a filter screen head end (221) and a filter screen tail end (222) arranged opposite to each other in the length direction of the filter screen (22); the filter screen head end (221) is wound on the main winding shaft (241), and the filter screen tail end (222) is provided with a traction rope, which is wound on the slave winding shaft (251); or, the filter screen head end (221) is provided with a traction rope, which is wound on the main winding shaft (241), and the filter screen tail end (222) is wound on the slave winding shaft (251); By controlling the rotation of the main roller (241), the filter screen (22) can be switched between the working state and the non-working state.

4. The wall-mounted air conditioner according to claim 3, characterized in that, The filter device (2) also includes a drive motor (26), the output shaft of which is drivenly connected to the main reel (241); the slave reel mechanism (25) also includes a coil spring, one end of which is fixed and the other end is connected to the slave reel (251); When the drive motor (26) drives the main winding shaft (241) to rotate in the forward direction and causes the coil spring to store energy, the filter screen (22) is wound toward the main winding shaft (241); when the filter screen (22) is entirely on the main winding shaft (241), the filter screen (22) is in a non-working state. When the drive motor (26) drives the main roller (241) to rotate in the opposite direction and the coil spring releases energy, the filter screen (22) rolls towards the slave roller (251); when the filter screen (22) completely covers the air vent where the filter device (2) is located, the filter screen (22) is in working condition.

5. The wall-mounted air conditioner according to claim 4, characterized in that, The filter device (2) includes multiple filter units (21), which are arranged sequentially along the length of the air outlet where the filter device (2) is located; the filter units (21) are generally included at a first end and a second end along the length of the air outlet where the filter device (2) is located. The main rollers (241) of two adjacent filter units (21) are connected by an intermediate shaft (27); the output shaft of the drive motor (26) is driven to the end of the main roller (241) near the first end or the end of the main roller (241) near the second end; When the drive motor (26) is running, it can drive the main roller (241) of multiple filter units (21) to rotate synchronously, thereby the filter screens (22) of multiple filter units (21) switching between the non-working state and the working state.

6. The wall-mounted air conditioner according to claim 1, characterized in that, The indoor unit (1) includes a housing (11) and a panel (122). The top of the housing (11) is formed with the upper air vent (111), and the lower end of the housing (11) is formed with the lower air vent (112). The panel (122) is disposed inside the housing (11), and the panel (122) includes an upper bracket located at the upper air vent (111) and / or a lower bracket located at the lower air vent (112). The upper bracket has an upper mounting groove (1221), and the lower bracket has a lower mounting groove (1222); When the filter device (2) is provided at the upper air outlet (111), the filter screen bracket (23) of the filter device (2) is set in the upper mounting groove (1221); when the filter device (2) is provided at the lower air outlet (112), the filter screen bracket (23) of the filter device (2) is set in the lower mounting groove (1222).

7. The wall-mounted air conditioner according to claim 1, characterized in that, The indoor unit (1) includes a housing (11), a fan blade (131) and a volute assembly. The top of the housing (11) has the upper air vent (111) and the lower end of the housing (11) has the lower air vent (112). The fan blade (131) is rotatably disposed inside the housing (11). The volute assembly is disposed inside the housing (11) and close to the downwind outlet (112); the volute assembly includes a volute (16) and a volute tongue, the volute (16) and the volute tongue surround the outside of the fan blade (131) and form an air duct connecting the upwind outlet (111) and the downwind outlet (112); By controlling the direction of the fan blades (131), the indoor unit (1) can realize the top air intake and bottom air outlet modes and the bottom air intake and top air outlet modes.

8. The wall-mounted air conditioner according to claim 7, characterized in that, The air duct includes a first air duct (181) for upper air intake and lower air outlet and a second air duct (182) for lower air intake and upper air outlet; An indoor heat exchanger (132) is provided inside the housing (11) and above the fan blades (131); The volute tongue includes a first movable volute tongue (171) and a second movable volute tongue (172) that can rotate about the axis of rotation of the fan blade (131); When the first movable volute (171) and the second movable volute (172) are both close to the indoor heat exchanger (132), the first movable volute (171), the second movable volute (172) and the volute (16) together form the first air duct (181); when the first movable volute (171) and the second movable volute (172) are both close to the downwind outlet (112), the first movable volute (171), the second movable volute (172) and the volute (16) together form the second air duct (182).

9. The wall-mounted air conditioner according to claim 8, characterized in that, The front side of the housing (11) is provided with a panel (121); The downwind opening (112) includes a first downwind area (1121) and a second downwind area (1122) arranged opposite to each other. The first downwind area (1121) is located at the bottom of the housing (11), and the second downwind area (1122) is located between the first downwind area (1121) and the lower end of the panel (121). When both the first movable volute (171) and the second movable volute (172) are close to the indoor heat exchanger (132), the first air duct (181) connects the upper air outlet (111) and the first downwind zone (1121) and the second downwind zone (1122); when both the first movable volute (171) and the second movable volute (172) are close to the downwind outlet (112), the second air duct (182) connects the upper air outlet (111) and the first downwind zone (1121).

10. The wall-mounted air conditioner according to claim 9, characterized in that, The upwind opening (111) is provided with a movable upper air guide plate (14), the first downwind area (1121) is provided with a movable first lower air guide plate (151), and the second downwind area (1122) is provided with a movable second lower air guide plate (152). When the upper air guide plate (14) opens the upper air outlet (111), the first lower air guide plate (151) opens the first lower air area (1121), and the second lower air guide plate (152) opens the second lower air area (1122), the indoor unit (1) can be in the upper air inlet and lower air outlet mode; When the upper air guide plate (14) opens the upper air outlet (111), the first lower air guide plate (151) opens the first lower air zone (1121), and the second lower air guide plate (152) closes the second lower air zone (1122), the indoor unit (1) is in the lower air inlet and upper air outlet mode.

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