Wall-mounted air conditioner indoor unit

Abstract

The present invention provides a wall-mounted air conditioner indoor unit, which includes a casing, a crossflow fan and a cleaning device. The casing defines a crossflow air duct. The crossflow fan is arranged in the crossflow air duct. The cleaning device includes a base, a cleaning part and a driving mechanism, the base is movably arranged in the crossflow air duct, and the cleaning part is movably mounted on the base. The driving mechanism is configured to: in the process of driving the base from a storage position away from the crossflow fan to a working position where the cleaning part is close to the crossflow fan, the cleaning part is simultaneously driven from a folded state stored in the base to an unfolded state in contact with the crossflow fan, so as to clean the crossflow fan. The wall-mounted air conditioner indoor unit of the present invention facilitates the cleaning of the crossflow fan.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a wall-mounted air conditioning indoor unit. Background Art

[0002] A cross-flow fan is installed in the indoor unit of a wall-mounted air conditioner. When the air conditioner has been running for a long time, a lot of dust will accumulate on the blades of the cross-flow fan, which will increase the wind resistance, reduce the wind force, and easily breed bacteria, producing mold and odor. Some dust on the surface of the blades will also be blown into the room, affecting the indoor air quality.

[0003] However, in the prior art, when a user wants to clean the fan, he needs to disassemble the wall-mounted air conditioner indoor unit as a whole and take out the cross-flow fan. This process is cumbersome and time-consuming and generally requires the operation of professionals. Summary of the invention

[0004] An object of the present invention is to provide a wall-mounted air conditioner indoor unit capable of cleaning a cross-flow fan.

[0005] Another object of the present invention is to reduce the interference of the cleaning device with the air supply airflow.

[0006] In particular, the present invention provides a wall-mounted air conditioner indoor unit, comprising:

[0007] a housing defining a crossflow air duct;

[0008] a crossflow fan, disposed in the crossflow air duct; and

[0009] A cleaning device, comprising a base, a cleaning part and a driving mechanism, wherein the base is movably disposed in the cross-flow duct, and the cleaning part is movably mounted on the base;

[0010] The driving mechanism is configured to: while driving the base portion from a storage position away from the cross-flow fan to a working position where the cleaning portion is close to the cross-flow fan, simultaneously drive the cleaning portion from a folded state stored in the base portion to an unfolded state in contact with the cross-flow fan, so as to clean the cross-flow fan.

[0011] Optionally, the driving mechanism is further configured to: in a process of driving the base portion from the working position to the storage position, simultaneously drive the cleaning portion from the unfolded state to the folded state.

[0012] Optionally, the driving mechanism comprises a gear mechanism, and a first gear of the gear mechanism is fixed to the base portion;

[0013] The cleaning part is provided with an intermittent motion gear;

[0014] In the later stage of the process in which the gear mechanism drives the base portion to rotate from the storage position to the working position, the intermittent motion gear starts to mesh with the second gear of the gear mechanism and is driven to rotate thereby, so as to drive the cleaning portion to rotate to the unfolded state;

[0015] In the early stage of the process in which the gear mechanism drives the base to rotate from the working position to the storage position, the second gear drives the intermittent motion gear to rotate so that the cleaning part rotates to the folded state, and then the intermittent motion gear disengages from the second gear so that the cleaning part remains in the folded state and continues to rotate with the base.

[0016] Optionally, the air duct walls defining the crossflow air duct include a front air duct wall, a rear air duct wall and two transverse end walls arranged in a front-to-rear interval;

[0017] The driving mechanism is arranged on the outer side of one of the transverse end walls, and the transverse end wall is provided with an arc-shaped hole to allow the rotating shaft of the cleaning part to extend out from the cross-flow air duct.

[0018] Optionally, the gear mechanism further comprises:

[0019] a third gear rotatably mounted on the transverse end wall and meshing with the first gear;

[0020] a fourth gear, rotatably mounted on the transverse end wall and meshing with the third gear;

[0021] The second gear and the fourth gear are fixed to the same shaft and are closer to the transverse end wall.

[0022] Optionally, the motor of the driving mechanism directly drives the base portion.

[0023] Optionally, the air duct wall defining the crossflow air duct includes a front air duct wall, a rear air duct wall and two transverse end walls arranged in a front-to-rear interval, and an opening is formed on the rear air duct wall;

[0024] The base part is plate-shaped and is rotatably mounted on the rear air duct wall, and when in the storage position, the base part closes the opening.

[0025] Optionally, the cleaning portion is in contact with the surface of the base portion when in the folded state.

[0026] Optionally, the cleaning portion is in the shape of a long strip extending along the axial direction of the cross-flow fan, so that when the cleaning portion is in the expanded state and the cross-flow fan rotates, the cleaning portion and the surface of the cross-flow fan rub against each other to achieve a cleaning function.

[0027] Optionally, the cleaning part includes a plate body connected to the base part and bristles installed on one side edge of the plate body.

[0028] The wall-mounted air conditioner indoor unit of the present invention is provided with a cleaning device in the cross-flow air duct, and the cleaning device includes a base portion and a cleaning portion. When the wall-mounted air conditioner indoor unit is in normal operation, the base portion is in a storage position, and the cleaning portion is in a folded state, so that the base portion and the cleaning portion have little interference with the airflow in the cross-flow air duct. When the cross-flow fan needs to be cleaned, the drive mechanism is controlled to operate so that it drives the base portion to turn to the working position while prompting the base portion to rotate to the unfolded state, so that it can clean the surface of the cross-flow fan. In this design, the drive mechanism can drive the base portion and the cleaning portion to operate at the same time, and there is no need to design an additional drive structure for the cleaning portion separately, so that the structure of the wall-mounted air conditioner indoor unit is simpler.

[0029] Furthermore, in the wall-mounted air conditioner indoor unit of the present invention, the driving mechanism includes a gear mechanism, and an intermittent motion gear is provided on the cleaning part. In the early stage when the gear mechanism drives the base part to rotate to the working position, the intermittent motion gear is free from the gear mechanism. When the base part rotates to the later stage of the working position, the intermittent motion gear is meshed with the second gear of the gear mechanism, so that the angle of rotation of the intermittent motion gear is not large, so as to just rotate from the folded state to the unfolded state. This design is very clever.

[0030] Furthermore, in the wall-mounted air-conditioning indoor unit of the present invention, the base portion is plate-shaped, and when it is in the storage position, it closes the opening of the rear air duct wall, making it equivalent to a component of the rear air duct wall, which makes it less disturbing to the airflow and also facilitates the operator to disassemble and clean the cleaning portion from the rear side of the wall-mounted air-conditioning indoor unit.

[0031] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0033] Figure 1 is a schematic structural diagram of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention;

[0034] Figure 2 yes Figure 1 A schematic diagram of a rear side view of a wall-mounted air conditioner indoor unit is shown;

[0035] Figure 3 yes Figure 1 A schematic structural diagram of the skeleton of the indoor unit of the wall-mounted air conditioner shown;

[0036] Figure 4 It is cut along a vertical plane extending forward and backward Figure 1 A cross-sectional enlarged view of a wall-mounted air conditioner indoor unit;

[0037] Figure 5 yes Figure 4 The schematic diagram of the indoor unit of the wall-mounted air conditioner shown is when the cleaning device is cleaning;

[0038] Figure 6 yes Figure 3 A magnified image of point A;

[0039] Figure 7 yes Figure 3 A schematic diagram of another perspective of the skeleton shown;

[0040] Figure 8 yes Figure 7 A magnified view of point B;

[0041] Fig. 9 yes Figure 8 The structure shown is a schematic diagram of the state after the intermittent motion gear is meshed with the second gear. DETAILED DESCRIPTION

[0042] Reference below Figures 1 to 9 To describe the wall-mounted air-conditioning indoor unit of the present invention, the directions or positional relationships indicated by “front”, “rear”, “up”, “down”, “top”, “bottom”, “inside”, “outside”, and “lateral”, etc., are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0043] The terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first", "second", etc. may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0044] Unless otherwise clearly defined and specified, the terms "installed", "connected", "connected", "fixed", "coupled" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person skilled in the art should be able to understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0045] Figure 1 is a schematic structural diagram of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention; Figure 2 yes Figure 1 A schematic diagram of a rear side view of a wall-mounted air conditioner indoor unit is shown; Figure 3 yes Figure 1 A schematic structural diagram of the skeleton of the indoor unit of the wall-mounted air conditioner shown; Figure 4 It is cut along a vertical plane extending forward and backward Figure 1 A cross-sectional enlarged view of a wall-mounted air conditioner indoor unit; Figure 5 yes Figure 4 The schematic diagram shown is a wall-mounted air conditioner indoor unit when being cleaned by a cleaning device.

[0046] The embodiment of the present invention provides a wall-mounted air conditioner indoor unit. The wall-mounted air conditioner indoor unit is the indoor part of a split wall-mounted room air conditioner, and is used to regulate indoor air, such as cooling / heating, dehumidifying, humidifying, purifying, introducing fresh air, etc.

[0047] like Figures 1 to 5 As shown, the wall-mounted air conditioner indoor unit according to the embodiment of the present invention may generally include a casing 10 , a cross-flow fan 40 and a cleaning device 20 .

[0048] The housing 10 defines a cross-flow duct 150. The cross-flow fan 40 is disposed in the cross-flow duct 150. The cross-flow duct 150 has an air outlet 12. The cross-flow fan 40 is used to force the conditioned airflow in the cross-flow duct 150 to blow to the outside of the housing 10 through the air outlet 12.

[0049] For example Figure 1 and Figure 3 As shown, the housing 10 may include a frame 15 for defining a cross-flow air duct 150 and a panel 16 wrapped around the outside of the frame 15 for sealing and decoration.

[0050] Specifically, the housing 10 defines a storage space for accommodating the main components of the indoor unit of the wall-mounted air conditioner, in which an indoor heat exchanger 30 is arranged. The indoor heat exchanger 30 is connected to the throttling device, the compressor arranged in the outdoor unit, the outdoor heat exchanger and other refrigeration elements through pipelines to form a vapor compression refrigeration cycle system. Under the action of the cross-flow fan 40, the indoor air enters the housing 10 through the air inlet 11 of the housing 10, and forms a heat exchange airflow after completing the heat exchange with the indoor heat exchanger 30. The heat exchange airflow enters the cross-flow air duct 150, is guided by the cross-flow air duct 150, and finally reaches the air outlet 12 to blow toward the indoor environment to complete the adjustment of the indoor environment. The air outlet 12 can be provided with air guide components such as an air guide plate 50 and a swing blade to adjust the air outlet direction of the air outlet 12.

[0051] The cleaning device 20 includes a base 100, a cleaning unit 200, and a driving mechanism 300. The base 100 is movably disposed in the crossflow duct 150, for example, the base 100 is rotatably disposed in the crossflow duct 150. The cleaning unit 200 is movably mounted on the base 100, for example, the cleaning unit 200 is rotatably mounted on the base 100. The driving mechanism 300 is configured to: when the base 100 is moved from a storage position (such as a position away from the crossflow fan 40) to a storage position (such as a position away from the crossflow fan 40), the cleaning unit 200 is rotatably mounted on the base 100. Figure 4 ) is driven to make the cleaning unit 200 close to the working position of the cross flow fan 40 (such as Figure 5 ) process, the cleaning unit 200 is simultaneously driven from a folded state accommodated in the base 100 to an unfolded state in contact with the cross flow fan 40 so as to clean the cross flow fan 40.

[0052] Specifically, the cleaning portion 200 may be in the shape of a strip extending along the axial direction (X direction) of the crossflow fan 40, such as Figure 3 , so that when the cross flow fan 40 is in the unfolded state and rotates, the cleaning part 200 and the surface of the cross flow fan 40 rub against each other to achieve the cleaning function. The dust dropped by cleaning can flow along the inner wall of the cross flow duct 150 to the air outlet 12, and the user can then clean it.

[0053] Figure 6 yes Figure 3 Enlarged view of point A.

[0054] Specifically, please refer to Figure 6 , the cleaning part 200 may include a plate 201 connected to the base part 100 and bristles 205 installed on one side edge of the plate 201. In the unfolded state, although the cleaning part 200 is stationary, the cross flow fan 40 rotates, so that the two rotate relative to each other, so that the bristles 205 can still brush off the dust on the surface of the cross flow fan 40.

[0055] The wall-mounted air conditioner indoor unit of the present invention is provided with a cleaning device 20 in the cross-flow duct 150, and the cleaning device 20 includes a base 100 and a cleaning part 200. When the wall-mounted air conditioner indoor unit is in normal operation, the base 100 is in the storage position, and the cleaning part 200 is in the folded state, so that the base 100 and the cleaning part 200 have little interference with the airflow in the cross-flow duct 150. When it is necessary to clean the cross-flow fan 40, the driving mechanism 300 is controlled to operate, so that while driving the base 100 to turn to the working position, the base 100 is driven to rotate to the unfolded state, so that the surface of the cross-flow fan 40 can be cleaned. In this design, the driving mechanism 300 can drive the base 100 and the cleaning part 200 to operate at the same time, and there is no need to design an additional driving structure for the cleaning part 200, so that the structure of the wall-mounted air conditioner indoor unit is simpler.

[0056] In addition, the driving mechanism 300 is further configured to: when the base portion 100 is moved from the working position (such as Figure 5 ) is driven to the storage position (such as Figure 4 ), the cleaning unit 200 is simultaneously driven from the unfolded state to the folded state.

[0057] Figure 7 yes Figure 3 Another perspective schematic diagram of the skeleton 15 is shown; Figure 8 yes Figure 7 A magnified view of point B;

[0058] Fig. 9 yes Figure 8 The structure shown is a schematic diagram of the state after the intermittent motion gear 350 is meshed with the second gear 320.

[0059] In some embodiments, please refer to Figure 8 and Fig. 9 The driving mechanism 300 includes a gear mechanism, and the first gear 310 of the gear mechanism is fixed to the base 100. Specifically, the first gear 310 is fixed to the rotating shaft 110 of the base 100. The cleaning unit 200 is provided with an intermittent gear 350. In the early stage of the gear mechanism driving the base 100 to rotate from the storage position to the working position, there is no meshing between the intermittent gear 350 and the gears of the gear mechanism. Figure 8 In the later stage of the gear mechanism driving the base 100 to rotate from the storage position to the working position, the intermittent motion gear 350 begins to mesh with the second gear 320 of the gear mechanism and is driven to rotate thereby driving the cleaning portion 200 to rotate to the unfolded state. Fig. 9 It can be seen that the movement of the intermittent motion gear 350 is intermittent. Of course, this requires that the central axis of the intermittent motion gear 350 is colinear with the rotating shaft 351 of the cleaning unit 200 and the intermittent motion gear 350 is fixed to the cleaning unit 200.

[0060] Similarly, in the early stage of the process in which the gear mechanism drives the base portion 100 to rotate from the working position to the storage position, the second gear 320 drives the intermittent motion gear 350 to rotate so that the cleaning portion 200 rotates to the folded state, and then the intermittent motion gear 350 disengages from the second gear 320, so that the cleaning portion 200 remains in the folded state and continues to rotate with the base portion 100 until the base portion 100 rotates to the storage position.

[0061] In the above embodiment of the present invention, in the early stage when the gear mechanism drives the base 100 to rotate to the working position, the intermittent motion gear 350 is free from the gear mechanism. When the base 100 rotates to the later stage of the working position, the intermittent motion gear 350 is meshed with the second gear 320 of the gear mechanism, so that the intermittent motion gear 350 rotates at a small angle, so as to just rotate from the folded state to the unfolded state. This design is very clever.

[0062] In some embodiments, Figure 3 and Figure 4 As shown, the air duct walls defining the crossflow air duct 150 include a front air duct wall 152, a rear air duct wall 151 and two transverse end walls 153 and 154 arranged in a front-to-back manner. In the figure, X represents the transverse direction, which is the length direction of the wall-mounted air conditioner indoor unit, the crossflow fan 40, and the crossflow air duct 150, and is also the direction of the rotation axis of the base 100 and the cleaning unit 200. Figure 6 and Figure 8 As shown, the driving mechanism 300 can be disposed outside a transverse end wall 153, and the transverse end wall 153 is provided with an arc-shaped hole 1533 to allow the rotating shaft 351 of the cleaning portion 200 to extend from the cross-flow air duct 150. In this way, the driving mechanism 300 is located outside the cross-flow air duct 150 and will not interfere with the normal flow of the airflow in the cross-flow air duct 150.

[0063] Furthermore, if Figure 8 As shown, the gear mechanism may further include a third gear 330 and a fourth gear 340. The third gear 330 is rotatably mounted on the transverse end wall 153 and meshes with the first gear 310. Specifically, the third gear 330 may be rotatably disposed on a rotating shaft 331, and the rotating shaft 331 is fixed to the transverse end wall 153. The fourth gear 340 is rotatably mounted on the transverse end wall 153 and meshes with the third gear 330. The second gear 320 and the fourth gear 340 are fixed to the same shaft 341. The shaft 341 is rotatably mounted on the transverse end wall 153. The second gear 320 is closer to the transverse end wall 153 than the fourth gear 340, so as to be fixedly connected to the rotating shaft 351 of the cleaning unit 200.

[0064] Thus, the rotation direction of the intermittent motion gear 350 is opposite to that of the first gear 310, so that the rotation directions of the cleaning part 200 and the base part 100 are opposite, so that when the base part 100 rotates toward the working position, the cleaning part 200 just rotates toward the unfolded state.

[0065] Furthermore, if Figure 8 As shown, since the base 100 needs a larger torque to rotate and the cleaning part 200 needs a smaller torque, the motor 360 of the driving mechanism 300 can directly drive the base 100 to better drive the base 100 to rotate and avoid getting stuck. The motor 360 drives the first gear 310 to rotate, the first gear 310 drives the third gear 330 to rotate, the third gear 330 drives the fourth gear 340 to rotate, the fourth gear 340 drives the shaft 341 to rotate, and the shaft 341 drives the second gear 320 to rotate.

[0066] In some embodiments, an opening 1513 may be provided on the rear air duct wall 151. The base 100 may be plate-shaped and rotatably mounted on the rear air duct wall 151, and when in the storage position, the opening 1513 is closed. The cleaning unit 200 may be connected to the lower end of the base 100 (the direction is based on the storage position).

[0067] For the cross-flow fan 40, the rear air duct wall 151 is larger and has enough space to accommodate the base 100, so it is installed on the rear air duct wall 151. Of course, in some alternative embodiments, the base 100 can also be installed on the front air duct wall 152.

[0068] In addition, the present embodiment uses the base 100 to seal the opening 1513 of the rear air duct wall 151, making it equivalent to a component of the rear air duct wall 151, which makes it less disturbing to the airflow and also facilitates the operator to remove and clean the cleaning unit 200 from the rear side of the wall-mounted air conditioner indoor unit. Furthermore, the cleaning unit 200 is attached to the surface of the base 100 when in the folded state.

[0069] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. A wall-mounted air conditioner indoor unit, comprising: a housing defining a crossflow air duct; A crossflow fan, arranged in the crossflow air duct; and A cleaning device, comprising a base, a cleaning part and a driving mechanism, wherein the base is movably disposed in the cross-flow duct, and the cleaning part is movably mounted on the base; The driving mechanism is configured to: in the process of driving the base from a storage position away from the cross flow fan to a working position where the cleaning unit is close to the cross flow fan, simultaneously drive the cleaning unit from a folded state stored in the base to an unfolded state in contact with the cross flow fan, so as to clean the cross flow fan; The driving mechanism comprises a gear mechanism, wherein a first gear of the gear mechanism is fixed to the base portion; The cleaning part is provided with an intermittent motion gear; In the later stage of the process in which the gear mechanism drives the base portion to rotate from the storage position to the working position, the intermittent motion gear starts to mesh with the second gear of the gear mechanism and is driven to rotate thereby, so as to drive the cleaning portion to rotate to the unfolded state; In the early stage of the process in which the gear mechanism drives the base to rotate from the working position to the storage position, the second gear drives the intermittent motion gear to rotate so that the cleaning part rotates to the folded state, and then the intermittent motion gear disengages from the second gear so that the cleaning part remains in the folded state and continues to rotate with the base; The air duct walls defining the cross-flow air duct include a front air duct wall, a rear air duct wall and two transverse end walls arranged in a front-to-rear interval; The gear mechanism further comprises: a third gear rotatably mounted on the transverse end wall and meshing with the first gear; a fourth gear, rotatably mounted on the transverse end wall and meshing with the third gear; The second gear and the fourth gear are fixed to the same shaft and are closer to the transverse end wall.

2. The wall-mounted air conditioner indoor unit according to claim 1, wherein The driving mechanism is further configured to: in a process of driving the base portion from the working position to the storage position, simultaneously drive the cleaning portion from the unfolded state to the folded state.

3. The wall-mounted air conditioner indoor unit according to claim 1, wherein The driving mechanism is arranged on the outer side of one of the transverse end walls, and the transverse end wall is provided with an arc-shaped hole to allow the rotating shaft of the cleaning part to extend out from the cross-flow air duct.

4. The wall-mounted air conditioner indoor unit according to claim 1, wherein The motor of the driving mechanism directly drives the base part.

5. The wall-mounted air conditioner indoor unit according to claim 1, wherein The air duct walls defining the cross-flow air duct include a front air duct wall, a rear air duct wall and two transverse end walls arranged in a front-to-rear interval, and an opening is formed on the rear air duct wall; The base part is plate-shaped and is rotatably mounted on the rear air duct wall, and when in the storage position, the base part closes the opening.

6. The wall-mounted air conditioner indoor unit according to claim 5, wherein When the cleaning part is in the folded state, it is in contact with the surface of the base part.

7. The wall-mounted air conditioner indoor unit according to claim 1, wherein The cleaning portion is in the shape of a long strip extending along the axial direction of the cross-flow fan, so that when the cleaning portion is in the expanded state and the cross-flow fan rotates, the cleaning portion and the surface of the cross-flow fan rub against each other to achieve a cleaning function.

8. The wall-mounted air conditioner indoor unit according to claim 7, wherein The cleaning part comprises a plate body connected to the base part and bristles installed on one side edge of the plate body.

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