Air conditioner indoor unit

Abstract

The utility model discloses an indoor unit of air conditioner, including casing, air outlet air duct, air deflector subassembly and drive arrangement, and the casing has the air outlet, air outlet air duct communicates with the air outlet, air deflector subassembly includes first air deflector and second air deflector, and first air deflector rotatably installs at the air outlet, and second air deflector movably installs in air outlet air duct, and second air deflector has the air resistance state and the air deflection state, and in the air resistance state, second air deflector is suitable for blocking the airflow to reduce the air outlet area of airflow, and in the air deflection state, second air deflector is suitable for guiding the airflow to flow out, and drive arrangement is used for driving second air deflector to move between the air resistance state and the air deflection state, according to the indoor unit of air conditioner of the utility model, in the air deflection state, can satisfy the normal air supply state of indoor unit of air conditioner, under the low wind baffle of heating mode, second air deflector can improve the air outlet air velocity under the air resistance state, reduces the indoor temperature difference, and the comfort when using indoor unit of air conditioner has been improved.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to an indoor air conditioning unit. Background Technology

[0002] In related technologies, air conditioner indoor units have heating and cooling modes. The heating mode delivers hot air into the room, while the cooling mode delivers cold air. In heating mode, when the user adjusts the air conditioner indoor unit to a low fan speed, the air volume is relatively small, while the air outlet area remains unchanged. This results in a reduced air outlet velocity, a shorter air outlet distance, poor hot air penetration, and a large temperature difference between the upper and lower parts of the room. Users experience a significant temperature difference between their head and feet, leading to a poor user experience. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one objective of this utility model is to provide an air conditioner indoor unit in which the second air guide plate has an air blocking state and an air guiding state. In the air guiding state, it can meet the normal air supply state of the air conditioner indoor unit; in the low fan speed of the heating mode, the second air guide plate can increase the air outlet speed and reduce the indoor temperature difference in the air blocking state, thereby improving the comfort when using the air conditioner indoor unit.

[0004] An indoor air conditioning unit according to this utility model includes: a housing having an air outlet; an air outlet duct communicating with the air outlet; an air guide plate assembly including a first air guide plate and a second air guide plate, the first air guide plate being rotatably mounted at the air outlet for opening or closing the air outlet, the second air guide plate being movably mounted within the air outlet duct, and having a wind-blocking state and a wind-guiding state in the direction of movement of the second air guide plate; in the wind-blocking state, the second air guide plate is adapted to block airflow to reduce the air outlet area, and in the wind-guiding state, the second air guide plate is adapted to guide airflow out; and a driving device located within the housing for driving the second air guide plate to move between the wind-blocking state and the wind-guiding state.

[0005] According to the present invention, the air conditioner indoor unit has a second air guide plate in the air outlet duct. The second air guide plate has a wind-blocking state and a wind-guiding state. In the wind-guiding state, the second air guide plate is suitable for guiding the airflow out to form a larger air outlet area, which can meet the normal air supply state of the air conditioner indoor unit. When the air conditioner indoor unit is in the low fan speed of the heating mode, the second air guide plate is suitable for blocking the airflow in the wind-blocking state to reduce the air outlet area, thereby increasing the air outlet speed, which is used to reduce the indoor temperature difference and improve the comfort when using the air conditioner indoor unit.

[0006] According to some embodiments of the present invention, the air outlet duct has a first duct wall and a second duct wall arranged opposite to each other along a first direction, and the second air guide plate is disposed on the first duct wall and / or the second duct wall.

[0007] According to some embodiments of the present invention, the second air guide plate includes a first plate body and a connecting rod. The connecting rod is connected to one side of the first plate body in a first direction and is disposed on the first air duct wall. In the wind-blocking state, one end of the first plate body abuts against the first air duct wall and is set at an angle to the first air duct wall to reduce the air outlet area of ​​the airflow.

[0008] According to some embodiments of the present invention, in the air guiding state, the first plate body is spaced apart from the first air duct wall, and the extending direction of the first plate body is the same as the air outlet direction.

[0009] According to some embodiments of the present invention, the first air duct wall includes a first section and a second section connected together. The first section is connected to the side of the second section near the air outlet. In the air outlet direction, the first section has a first end and a second end. The air outlet is formed between the second end and the second air duct wall. In the direction from the first end to the second end, the first section is inclined toward the side away from the second air duct wall to increase the air outlet area.

[0010] According to some embodiments of the present invention, in the wind-blocking state, one end of the first plate body abuts against the first end.

[0011] According to some embodiments of the present invention, the driving device includes a drive motor, the drive shaft of the drive motor is sleeved with a gear, the connecting rod is provided with a rack that meshes with the gear, the first air duct wall is provided with a clearance hole, and the connecting rod is movably inserted through the clearance hole.

[0012] According to some embodiments of this utility model, the connecting rod is an arc-shaped rod, with the center of the arc-shaped rod facing the air outlet, and the rack is located on the side of the arc-shaped rod away from the center of the arc-shaped rod.

[0013] According to some embodiments of the present invention, the air guide plate assembly further includes a third air guide plate. The air outlet duct has a first duct wall and a second duct wall disposed opposite to each other along a first direction. The second air guide plate is disposed on the first duct wall, and the third air guide plate is rotatably disposed on the second duct wall. In the rotation direction of the third air guide plate, the third air guide plate has a first position and a second position. In the first position, the third air guide plate is adapted to close part of the air outlet, and in the second position, the third air guide plate is adapted to open the air outlet.

[0014] According to some embodiments of the present invention, the second air duct wall is recessed toward the side opposite to the first air duct wall to form a receiving cavity, and in the second position, the third air guide plate is located in the receiving cavity.

[0015] According to some embodiments of the present invention, the third air guide plate includes a second plate body and a guide plate. One end of the second plate body is rotatably connected to the end of the second air duct wall away from the air outlet, and the other end of the second plate body is connected to the guide plate. The guide plate extends toward the side away from the first air duct wall. The guide plate is an arc-shaped plate, and the inner wall of the receiving cavity is an arc-shaped surface that mates with the arc-shaped plate. The arc-shaped surface is used to guide the rotation direction of the third air guide plate.

[0016] According to some embodiments of the present invention, a connector is provided between the second plate body and the guide plate.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of an indoor air conditioner unit according to the first embodiment of the present utility model, wherein the second air guide plate is in the air guiding state; Figure 2 yes Figure 1 Front view of the indoor unit of the central air conditioner; Figure 3 yes Figure 1 A cross-sectional view of the indoor unit of a central air conditioner; Figure 4 yes Figure 1 Schematic diagram of the second air guide plate in the middle; Figure 5 This is a schematic diagram of an indoor air conditioner unit according to the first embodiment of the present utility model, wherein the second air guide plate is in a wind-blocking state; Figure 6 yes Figure 5 Front view of the indoor unit of the central air conditioner; Figure 7 yes Figure 5 A cross-sectional view of the indoor unit of a central air conditioner; Figure 8 yes Figure 5 Schematic diagram of the second air guide plate in the middle; Figure 9This is a schematic diagram of an indoor air conditioner unit according to a first embodiment of the present invention, wherein the first air guide plate is in heating mode; Figure 10 yes Figure 9 Front view of the indoor unit of the central air conditioner; Figure 11 yes Figure 9 A cross-sectional view of the indoor unit of a central air conditioner.

[0019] Figure label: 100. Air conditioner indoor unit; 10. Housing; 11. Air outlet; 20. Air outlet duct; 21. First air duct wall; 211. First section; 2111. First end; 2112. Second end; 212. Second section; 22. Second air duct wall; 221. Receiving cavity; 222. Curved surface; 31. First air guide plate; 32. Second air guide plate; 321. First plate body; 322. Connecting rod; 323. Rack; 33. Third air guide plate; 331. Second plate body; 332. Guide plate; 333. Connector; 40. Drive unit; 41. Drive motor; 42. Gear. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] The following is for reference. Figures 1-11 Description of an indoor air conditioning unit 100 according to an embodiment of the present utility model.

[0022] According to an embodiment of the present invention, the indoor unit 100 of the air conditioner is a wall-mounted unit. The indoor unit 100 includes a housing 10 and an air outlet duct 20. The housing 10 has an air outlet 11. The air outlet duct 20 is located inside the indoor unit 100 and is connected to the air outlet 11. The air outlet duct 20 is used to guide the airflow processed by the indoor unit 100 through the air outlet 11 to flow into the room, thereby regulating the temperature of the indoor air.

[0023] The indoor unit 100 of the air conditioner also includes an air guide plate assembly, which includes a first air guide plate 31. The first air guide plate 31 is rotatably mounted at the air outlet 11 and is used to open or close the air outlet 11. When the indoor unit 100 of the air conditioner needs to be used, the indoor unit 100 is turned on, and the first air guide plate 31 is used to open the air outlet 11, allowing airflow in the air outlet duct 20 to flow into the room through the air outlet 11. When the indoor unit 100 of the air conditioner does not need to be used, the first air guide plate 31 closes the air outlet 11 to prevent dust or moisture from the outside environment from entering the interior of the indoor unit 100 of the air conditioner.

[0024] The indoor unit 100 of the air conditioner has a heating mode and a cooling mode. The heating mode is used to deliver hot air into the room, and the cooling mode is used to deliver cold air into the room. In heating mode, when the user adjusts the indoor unit 100 to a low fan speed, the air volume of the indoor unit 100 is relatively small, while the air outlet area remains unchanged. This results in a reduced air outlet speed, a shorter air delivery distance, poor air penetration to the ground, and a large temperature difference between the upper and lower parts of the room. The user experiences a large temperature difference between their head and feet, leading to poor user comfort.

[0025] The air guide plate assembly of this application also includes a second air guide plate 32, which is movably installed in the air outlet duct 20. In the direction of movement of the second air guide plate 32, the second air guide plate 32 has a wind-blocking state and a wind-guiding state. In the wind-blocking state, the second air guide plate 32 is adapted to block the airflow to reduce the air outlet area. In the wind-guiding state, the second air guide plate 32 is adapted to guide the airflow out.

[0026] Specifically, in the heating mode of the indoor unit 100 of the air conditioner, when the user uses the low fan speed, the air volume of the indoor unit 100 of the air conditioner is relatively small. By adjusting the second air guide plate 32 to the windproof state, it is used to block part of the air outlet 11. At this time, the air outlet area is reduced, while the air volume remains unchanged, which increases the air outlet speed. This can increase the air delivery distance and reduce the indoor temperature difference. For example, the air outlet speed can be increased by 10%-20%, and the indoor temperature difference is reduced by more than 3℃. This solves the problems of short air delivery distance and poor temperature uniformity in the low fan speed mode of the heating mode.

[0027] In the heating mode of the indoor unit 100 of the air conditioner, when the user is using it normally, the second air guide plate 32 is in the air guiding state. The second air guide plate 32 is suitable for guiding the airflow out to form a large air outlet area, which can meet the normal air supply state of the indoor unit 100 of the air conditioner.

[0028] The air conditioner indoor unit 100 also includes a drive device 40, which is located inside the housing 10. The drive device 40 is used to drive the second air guide plate 32 to move between the wind-blocking state and the wind-guiding state, which can improve the automation level of the second air guide plate 32 when it moves.

[0029] In a specific example, the third air guide plate 33 is a rectangular plate, with both ends of the rectangular plate hinged to the indoor unit 100 of the air conditioner along its length. In the wind-blocking state, the width direction of the rectangular plate is set perpendicular to the air outlet direction or at an angle to the air outlet direction to block the airflow; in the wind-guiding state, the width direction of the rectangular plate is parallel to the air outlet direction to guide the airflow.

[0030] In another specific example, the third air guide plate 33 is a rectangular plate, with one end of the rectangular plate in the width direction hinged to the inner wall of the air outlet duct 20. In the wind-blocking state, the width direction of the rectangular plate is set perpendicular to the air outlet direction or at an angle to the air outlet direction to block the airflow; in the wind-guiding state, the width direction of the rectangular plate is parallel to the air outlet direction to guide the airflow.

[0031] According to the embodiment of the present utility model, the air outlet duct 20 of the air conditioner indoor unit 100 is provided with a second air guide plate 32. The second air guide plate 32 has a wind-blocking state and a wind-guiding state. In the wind-guiding state, the second air guide plate 32 is suitable for guiding the airflow out to form a larger air outlet area, which can meet the normal air supply state of the air conditioner indoor unit 100. When the air conditioner indoor unit 100 is in the low wind setting of the heating mode, the second air guide plate 32 is suitable for blocking the airflow in the wind-blocking state to reduce the air outlet area of ​​the airflow, thereby increasing the air outlet speed, which is used to reduce the indoor temperature difference and improve the comfort when using the air conditioner indoor unit 100.

[0032] According to some embodiments of this utility model, refer to Figures 1-4 The air outlet duct 20 has a first direction (see attached diagram). Figure 3 The first air duct wall 21 and the second air duct wall 22 are arranged opposite each other in the X direction shown in the figure. Specifically, the second air duct wall 22 is located above the first air duct wall 21, and the second air guide plate 32 is provided on the first air duct wall 21, or the second air guide plate 32 is provided on the second air duct wall 22, or both the first air duct wall 21 and the second air duct wall 22 are provided with the second air guide plate 32. The first air duct wall 21 and / or the second air duct wall 22 provide the installation position for the second air guide plate 32.

[0033] The second air guide plate 32 is disposed on the first air duct wall 21 or the second air duct wall 22. One end of the second air guide plate 32 may be hinged to the first air duct wall 21 or the second air duct wall 22. In the direction of movement of the second air guide plate 32, it has an air-blocking state and an air-guiding state. In the air-blocking state, the second air guide plate 32 is set at an angle to the first air duct wall 21 or the second air duct wall 22 to reduce the air outlet area of ​​the air outlet duct 20, thereby reducing the air outlet area of ​​the airflow. In the air-guiding state, the second air guide plate 32 is close to the first air duct wall 21 or the second air duct wall 22, reducing the space occupied by the second air guide plate 32 in the air outlet duct 20, and guiding the airflow out.

[0034] Two second air guide plates 32 are provided, which are respectively located on the first air duct wall 21 and the second air duct wall 22. One end of the second air guide plate 32 is hinged to the first air duct wall 21, and the other end of the second air guide plate 32 is hinged to the second air duct wall 22. In the direction of movement of the second air guide plate 32, it has a wind-blocking state and a wind-guiding state. In the wind-blocking state, one second air guide plate 32 is set at an angle to the first air duct wall 21, or another second air guide plate 32 is set at an angle to the second air duct wall 22, or one second air guide plate 32 is set at an angle to the first air duct wall 21 and another second second air guide plate 32 is set at an angle to the second air duct wall 22, in order to reduce the air outlet area of ​​the air outlet duct 20, thereby reducing the air outlet area of ​​the airflow; in the wind-guiding state, one second air guide plate 32 is attached to the first air duct wall 21 and another second second air guide plate 32 is attached to the second air duct wall 22, reducing the space occupied by the two second air guide plates 32 in the air outlet duct 20, in order to guide the airflow out.

[0035] According to some embodiments of this utility model, refer to Figures 1-8 The second air guide plate 32 includes a first plate body 321 and a connecting rod 322. The connecting rod 322 is connected to one side of the first plate body 321 in a first direction. The connecting rod 322 is located on the side of the first plate body 321 close to the first air duct wall 21. The connecting rod 322 can be hinged to the first air duct wall 21. The movement of the connecting rod 322 is driven by the driving device 40 to drive the movement of the first plate body 321, so as to realize the switching of the second air guide plate 32 between the air guiding state and the air blocking state.

[0036] For example, there are two connecting rods 322, which are located at both ends of the length direction of the first plate body 321.

[0037] According to some embodiments of this utility model, refer to Figures 1-8 In the wind-blocking state, one end of the first plate body 321 abuts against the first air duct wall 21, and the first plate body 321 and the first air duct wall 21 are set at an angle. The first plate body 321 occupies part of the space in the air outlet duct 20, forming a new air outlet duct 20 between the first plate body 321 and the second air duct wall 22, forming a smaller air outlet area to reduce the air outlet area of ​​the airflow, thereby increasing the air outlet speed and forming an accelerated heating and air supply state.

[0038] For example, under wind-blocking conditions, the air outlet area can be reduced by 18%; the opening at the angle between the first plate body 321 and the first air duct wall 21 can face the air outlet 11 or face into the air outlet duct 20.

[0039] In the air guiding state, the first plate body 321 is separated from the first air duct wall 21. The extension direction of the first plate body 321 is the same as the air outlet direction, which can reduce the space occupied by the first plate body 321 in the air outlet duct 20 and prevent the first plate body 321 from blocking the airflow.

[0040] In a specific example, the first plate body 321 is a strip plate with a length direction and a width direction. The air outlet 11 also has a length direction and a width direction, and the length direction of the strip plate and the length direction of the air outlet 11 extend in the same direction. It can be understood that in the wind-blocking state, the first plate body 321 is set at an angle, and the first plate body 321 occupies part of the space in the air outlet duct 20. The first plate body 321 is used to block part of the air outlet 11 to reduce the air outlet area. In the air-guiding state, the width direction of the first plate body 321 is the same as the air outlet direction, so as to minimize the space occupied by the first plate body 321 in the air outlet duct 20.

[0041] According to some embodiments of this utility model, refer to Figures 1-8 The first air duct wall 21 includes a first section 211 and a second section 212 connected together. In the air outlet direction, the first section 211 is connected to the side of the second section 212 near the air outlet 11, that is, the first section 211 is set closer to the air outlet 11, and the air outlet 11 is formed between the first section 211 and the second air duct wall 22. In the air outlet direction, the first section 211 has a first end 2111 and a second end 2112. The air outlet 11 is formed between the second end 2112 and the second air duct wall 22. In the direction from the first end 2111 to the second end 2112, the first section 211 is inclined toward the side away from the second air duct wall 22 to increase the air outlet area of ​​the air outlet 11.

[0042] For example, the first segment 211 is an arc-shaped segment, with the center of the arc-shaped segment facing one side of the air outlet duct 20.

[0043] According to some embodiments of this utility model, refer to Figures 5-8 In the wind-blocking state, one end of the first plate body 321 abuts against the first end 2111, and the opening of the angle between one end of the first plate body 321 and the first air duct wall 21 is set towards the air outlet 11 so that the airflow can flow out along the first plate body 321.

[0044] For example, when the first plate body 321 abuts against the first end 2111, the extension direction of the first plate body 321 is the same as the extension direction of the second segment 212 in the airflow direction.

[0045] According to some embodiments of this utility model, refer to Figures 1-8The drive device 40 includes a drive motor 41, a gear 42 is sleeved on the drive shaft of the drive motor 41, and a rack 323 is provided on the connecting rod 322. The rack 323 is located in the length direction of the connecting rod 322 and meshes with the gear 42. The first air duct wall 21 is provided with a clearance hole, and the connecting rod 322 is movably inserted through the clearance hole to mesh with the gear 42. The clearance hole also serves to support the connecting rod 322.

[0046] When the drive motor 41 is working, the drive motor 41 drives the drive shaft to rotate, and the drive shaft synchronously drives the gear 42 to rotate. When the gear 42 rotates, the gear 42 drives the rack 323 to move, so as to realize the movement of the connecting rod 322, thereby realizing the movement of the second air guide plate 32 between the wind-blocking state and the wind-guiding state. By meshing the rack 323 with the gear 42, the second air guide plate 32 can move between the wind-blocking state and the wind-guiding state, which can simplify the movement mode of the second air guide plate 32.

[0047] According to some embodiments of this utility model, refer to Figures 1-8 The connecting rod 322 is an arc-shaped rod with its center facing the air outlet 11. The rack 323 is located on the side of the arc-shaped rod away from its center.

[0048] When the drive motor 41 is working, the drive motor 41 drives the drive shaft to rotate, and the drive shaft synchronously drives the gear 42 to rotate. When the gear 42 rotates, the gear 42 drives the rack 323 to move, so as to realize the movement of the connecting rod 322. The connecting rod 322 is an arc-shaped rod. When the connecting rod 322 moves, the connecting rod 322 rotates along the center of the circle of the connecting rod 322. This allows the first plate body 321 to move and rotate at the same time, so as to adjust the position of the first plate body 321. In this way, the second air guide plate 32 can move between the wind-blocking state and the wind-guiding state.

[0049] The rack 323 is located on the side of the arc-shaped rod away from its center, meaning the rack 323 is also located on the side of the arc-shaped rod away from its center. The connecting rod 322 is connected to the side of the first plate body 321 near the air outlet 11, and the first plate body 321 and the connecting rod 322 form an acute angle and an obtuse angle. The opening direction of the acute angle faces the interior of the air outlet duct 20. The first plate body 321 applies pressure to the connecting rod 322 in the direction towards the air outlet 11. Gravity, and gear 42 is located on the side of the arc rod away from the center of the arc rod. The drive motor 41 also applies gravity to the connecting rod 322. The first air duct wall 21 where the clearance hole is located supports the connecting rod 322. When the first plate body 321 applies gravity to the connecting rod 322, the connecting rod 322 will rotate in the direction of the drive motor 41. The drive motor 41 also applies gravity to the connecting rod 322, so that the connecting rod 322 is kept in a balanced state.

[0050] According to some embodiments of this utility model, refer to Figures 1-11 The air guide plate assembly also includes a third air guide plate 33. The air outlet duct 20 has a first duct wall 21 and a second duct wall 22 arranged opposite to each other along a first direction. The second air guide plate 32 is disposed on the first duct wall 21, and the third air guide plate 33 is rotatably disposed on the second duct wall 22. In the rotation direction of the third air guide plate 33, the third air guide plate 33 has a first position and a second position. In the first position, the third air guide plate 33 is adapted to close part of the air outlet 11. In the second position, the third air guide plate 33 is adapted to open the air outlet 11.

[0051] Specifically, the first air duct wall 21 is located below the second air duct wall 22, and the indoor unit 100 of the air conditioner has a heating mode and a cooling mode. In the heating mode, the indoor unit 100 of the air conditioner outputs hot air towards the room. The hot air is lighter than the cold air in the room, so the hot air will rise naturally. In order to enable the hot air to heat the entire room more effectively, the first air guide plate 31 is usually set downward so that the hot air can blow directly to the ground and then fill the entire room as it rises.

[0052] In cooling mode, the indoor unit 100 of the air conditioner outputs cold air towards the room. Cold air is heavier than the hot air in the room, so it will naturally sink. In order to allow the cold air to circulate better and to avoid the cold air blowing directly on the human body and causing discomfort, the first air guide plate 31 is often set to the upward or horizontal direction, which can promote the mixing of cold air and hot air in the room and achieve a more uniform cooling effect.

[0053] In heating mode, the first air guide plate 31 is usually set downwards, and the third air guide plate 33 is adjusted to the first position so that the hot air blown out by the indoor unit 100 blows downwards. In cooling mode, the first air guide plate 31 is usually set upwards or horizontally, and the third air guide plate 33 is adjusted to the second position so that the cold air blown out by the indoor unit 100 blows upwards, so that the indoor unit 100 achieves the best heating and cooling effect, and realizes rapid heating or cooling of the room.

[0054] In cooling mode, the second air guide plate 32 is in a wind-blocking state. Although the second air guide plate 32 is in a wind-blocking state, it does not actually block the air. This is because in cooling mode, the first air guide plate 31 is often set to the upward or horizontal direction. At this time, the second air guide plate 32 is located inside the first air guide plate 31, and the first air guide plate 31 guides the airflow upward.

[0055] According to some embodiments of this utility model, refer to Figure 11The second air duct wall 22 is recessed on the side opposite to the first air duct wall 21 to form a receiving cavity 221. In the second position, the third air guide plate 33 is located in the receiving cavity 221 and can be stored. After the third air guide plate 33 is located in the receiving cavity 221, the third air guide plate 33 no longer blocks the air outlet 11, allowing the airflow to blow upward.

[0056] 11. According to some embodiments of the present invention, referring to Figure 11 The third air guide plate 33 includes a second plate body 331 and a guide plate 332. One end of the second plate body 331 is rotatably connected to the end of the second air duct wall 22 away from the air outlet 11, and the other end of the second plate body 331 is connected to the guide plate 332. The guide plate 332 extends toward the side away from the first air duct wall 21. The guide plate 332 is an arc-shaped plate, and the inner wall of the receiving cavity 221 is an arc-shaped surface 222 that matches the arc-shaped plate. The arc-shaped surface 222 is used to guide the rotation direction of the third air guide plate 33. When the third air guide plate 33 rotates, the guide plate 332 rotates along the arc-shaped surface 222 of the receiving cavity 221. The arc-shaped surface 222 can play the role of guiding the rotation direction of the third air guide plate 33.

[0057] For example, the guide plate 332 is recessed in the direction of the guide plate 332, and the side of the guide plate 332 facing the air outlet duct 20 has an arc-shaped structure.

[0058] 12. According to some embodiments of the present invention, referring to Figure 11 A connector 333 connects the second plate body 331 and the guide plate 332, which can increase the structural strength of the third air guide plate 33. For example, the connector 333 may include multiple connecting ribs that extend along the length of the third air guide plate 33 and are connected to the second plate body 331 and the guide plate 332 on the side facing the receiving cavity 221; the connector 333 may also be a connecting block that is located on the side of the second plate body 331 and the guide plate 332 facing the receiving cavity 221.

[0059] The following reference Figures 1-11 This invention describes an indoor air conditioning unit 100 according to one embodiment of the present invention.

[0060] The indoor unit 100 of the air conditioner includes a housing 10 and an air outlet duct 20. The housing 10 has an air outlet 11 communicating with the air outlet duct 20. The air outlet duct 20 has a first duct wall 21 and a second duct wall 22 disposed opposite to each other along a first direction. The air guide plate assembly includes a first air guide plate 31 and a second air guide plate 32. The first air guide plate 31 is rotatably mounted at the air outlet 11 for opening or closing the air outlet 11. The second air guide plate 32 is movably mounted inside the air outlet duct 20. The second air guide plate 32 includes a first plate body 321 and a connecting rod 322. The connecting rod 322 is connected to one side of the first plate body 321 in the first direction and is disposed on the first duct wall 21. The first air duct wall 21 includes a first section 211 and a second section 212 connected together. The first section 211 is connected to the second section 212 on the side near the air outlet 11. In the airflow direction, the first section 211 has a first end 2111 and a second end 2112. The air outlet 11 is formed between the second end 2112 and the second air duct wall 22. In the direction from the first end 2111 to the second end 2112, the first section 211 is inclined towards the side away from the second air duct wall 22. In the direction of movement of the second air guide plate 32, the second air guide plate 32 has a wind-blocking state and a wind-guiding state. In the wind-blocking state, one end of the first plate body 321 abuts against the first end 2111 and is set at an angle to the first section 211. In the wind-guiding state, the first plate body 321 is spaced apart from the first air duct wall 21, and the extension direction of the first plate body 321 is the same as the air outlet direction of the airflow.

[0061] The drive unit 40 includes a drive motor 41, which drives the second air guide plate 32 to move between an air-blocking state and an air-guiding state. A gear 42 is sleeved on the drive shaft of the drive motor 41. A rack 323 meshes with the gear 42 on the connecting rod 322. An clearance hole is provided in the first air duct wall 21, and the connecting rod 322 is movably inserted through the clearance hole. The connecting rod 322 is an arc-shaped rod, with its center facing the air outlet 11. The rack 323 is located on the side of the arc-shaped rod opposite to its center.

[0062] The air guide plate assembly also includes a third air guide plate 33, which is rotatably disposed on the second air duct wall 22. The second air duct wall 22 is recessed toward the side opposite to the first air duct wall 21 to form a receiving cavity 221. In the rotation direction of the third air guide plate 33, the third air guide plate 33 has a first position and a second position. In the first position, the third air guide plate 33 is adapted to close the air outlet 11 of the portion. In the second position, the third air guide plate 33 is located within the receiving cavity 221.

[0063] The third air guide plate 33 includes a second plate body 331 and a guide plate 332. One end of the second plate body 331 is rotatably connected to the end of the second air duct wall 22 away from the air outlet 11, and the other end of the second plate body 331 is connected to the guide plate 332. The guide plate 332 extends toward the side away from the first air duct wall 21. The guide plate 332 is an arc-shaped plate, and the inner wall of the receiving cavity 221 is an arc-shaped surface 222 that matches the arc-shaped plate. The arc-shaped surface 222 is used to guide the rotation direction of the third air guide plate 33. A connector 333 connects the second plate body 331 and the guide plate 332.

[0064] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0065] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0066] In the description of this specification, references to terms such as "some embodiments," "optionally," "furthermore," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0067] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An indoor unit for an air conditioner, characterized in that, include: A housing having an air outlet; An air outlet duct, which is connected to the air outlet; An air guide plate assembly includes a first air guide plate and a second air guide plate. The first air guide plate is rotatably mounted at the air outlet for opening or closing the air outlet. The second air guide plate is movably mounted in the air outlet duct. In the direction of movement of the second air guide plate, the second air guide plate has an air blocking state and an air guiding state. In the air blocking state, the second air guide plate is adapted to block the airflow to reduce the air outlet area. In the air guiding state, the second air guide plate is adapted to guide the airflow out. A driving device, located within the housing, is used to drive the second air guide plate to move between the wind-blocking state and the wind-guiding state.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The air outlet duct has a first duct wall and a second duct wall arranged opposite to each other along a first direction, and the second air guide plate is disposed on the first duct wall and / or the second duct wall.

3. The indoor unit of the air conditioner according to claim 2, characterized in that, The second air guide plate includes a first plate body and a connecting rod. The connecting rod is connected to one side of the first plate body in a first direction and is disposed on the first air duct wall.

4. The indoor unit of the air conditioner according to claim 3, characterized in that, In the wind-blocking state, one end of the first plate body abuts against the first air duct wall and is set at an angle to the first air duct wall to reduce the air outlet area; in the air-guiding state, the first plate body is spaced apart from the first air duct wall, and the extension direction of the first plate body is the same as the air outlet direction.

5. The indoor unit of the air conditioner according to claim 4, characterized in that, The first air duct wall includes a first section and a second section connected together. The first section is connected to the side of the second section near the air outlet. In the air outlet direction, the first section has a first end and a second end. The air outlet is formed between the second end and the second air duct wall. In the direction from the first end to the second end, the first section is inclined toward the side away from the second air duct wall to increase the air outlet area.

6. The indoor unit of the air conditioner according to claim 5, characterized in that, In the wind-resistant state, one end of the first plate body abuts against the first end.

7. The indoor unit of the air conditioner according to claim 3, characterized in that, The driving device includes a drive motor, the drive shaft of the drive motor is fitted with a gear, the connecting rod is provided with a rack that meshes with the gear, the first air duct wall is provided with a clearance hole, and the connecting rod is movably inserted through the clearance hole.

8. The indoor unit of the air conditioner according to claim 7, characterized in that, The connecting rod is an arc-shaped rod, with the center of the arc-shaped rod facing the air outlet. The rack is located on the side of the arc-shaped rod opposite to the center of the arc-shaped rod.

9. The indoor unit of the air conditioner according to claim 1, characterized in that, The air guide plate assembly further includes a third air guide plate. The air outlet duct has a first duct wall and a second duct wall arranged opposite to each other along a first direction. The second air guide plate is disposed on the first duct wall, and the third air guide plate is rotatably disposed on the second duct wall. In the rotation direction of the third air guide plate, the third air guide plate has a first position and a second position. In the first position, the third air guide plate is adapted to close part of the air outlet, and in the second position, the third air guide plate is adapted to open the air outlet.

10. The indoor unit of the air conditioner according to claim 9, characterized in that, The second air duct wall is recessed toward the side opposite to the first air duct wall to form a receiving cavity, and in the second position, the third air guide plate is located in the receiving cavity.

11. The indoor unit of the air conditioner according to claim 10, characterized in that, The third air guide plate includes a second plate body and a guide plate. One end of the second plate body is rotatably connected to the end of the second air duct wall away from the air outlet. The other end of the second plate body is connected to the guide plate. The guide plate extends toward the side away from the first air duct wall. The guide plate is an arc-shaped plate. The inner wall of the receiving cavity is an arc-shaped surface that matches the arc-shaped plate. The arc-shaped surface is used to guide the rotation direction of the third air guide plate.

12. The indoor unit of the air conditioner according to claim 11, characterized in that, A connector is provided between the second plate body and the guide plate.

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