CN115507434A

CN115507434A - Wall-mounted air conditioner indoor unit

Info

Publication number: CN115507434A
Application number: CN202211129983.XA
Authority: CN
Inventors: 李绪超; 冷晓燕; 宋凤娟
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2022-12-23

Abstract

The invention provides a wall-mounted air conditioner indoor unit, which comprises a casing, a cross-flow fan and a cleaning device. The casing defines a through-flow duct. The cross flow fan is arranged in the cross flow air duct. The cleaning device includes a base body portion movably provided in the through-flow duct, a cleaning portion movably attached to the base body portion, and a drive mechanism. The drive mechanism is configured to: the cleaning unit is driven from a folded state in which the cleaning unit is housed in the base unit to an unfolded state in which the cleaning unit is in contact with the cross-flow fan, so as to clean the cross-flow fan, while the base unit is driven from a housed position away from the cross-flow fan to an operating position in which the cleaning unit is brought close to the cross-flow fan. The wall-mounted air conditioner indoor unit is convenient for cleaning the cross-flow fan.

Description

Wall-mounted air conditioner indoor unit

Technical Field

The invention relates to the technical field of air conditioners, in particular to a wall-mounted air conditioner indoor unit.

Background

A cross-flow fan is arranged in an indoor unit of a wall-mounted air conditioner, when the air conditioner runs for a long time, a large amount of dust can be accumulated on blades of the cross-flow fan, so that the wind resistance is increased, the wind power is reduced, bacteria are easy to breed, the peculiar smell is generated, and partial dust on the surfaces of the blades can be blown into a room to influence the indoor air quality.

However, in the prior art, when a user wants to clean the fan, the user needs to integrally disassemble the wall-mounted air conditioner indoor unit and take out the cross-flow fan, so that the process is complicated and time-consuming, and operation of professionals is generally needed.

Disclosure of Invention

The invention aims to provide a wall-mounted air conditioner indoor unit capable of cleaning a cross-flow fan.

Another object of the present invention is to reduce the disturbance of the cleaning device to the supply air flow.

In particular, the present invention provides a wall-mounted air conditioning indoor unit, comprising:

a casing defining a through-flow duct;

the cross-flow fan is arranged in the cross-flow air duct; and

a cleaning device including a base portion movably provided in the through-flow duct, a cleaning portion movably attached to the base portion, and a drive mechanism;

the drive mechanism is configured to: the cleaning unit is driven from a folded state in which the cleaning unit is housed in the base body to an unfolded state in which the cleaning unit is in contact with the cross-flow fan so as to clean the cross-flow fan, while the base body is driven from a housed position away from the cross-flow fan to an operating position in which the cleaning unit is brought close to the cross-flow fan.

Optionally, the drive mechanism is further configured to: in the process of driving the base portion from the operating position to the storage position, simultaneously driving the cleaning section from the deployed state to the folded state.

Optionally, the drive mechanism comprises a gear mechanism, a first gear of the gear mechanism being fixed to the base portion;

an intermittent motion gear is arranged on the cleaning part;

at the later stage of the process that the gear mechanism drives the base body part to rotate from the storage position to the working position, the intermittent motion gear is meshed with and driven to rotate by a second gear of the gear mechanism, so as to drive the cleaning part to rotate to the unfolding state;

before the gear mechanism drives the base body part to rotate from the working position to the storage position, the second gear drives the intermittent motion gear to rotate so as to enable the cleaning part to rotate to the folded state, and then the intermittent motion gear is separated from the second gear, so that the cleaning part keeps rotating with the base body part in the folded state.

Optionally, the air duct walls defining the through-flow air duct include a front air duct wall, a rear air duct wall and two transverse end walls, which are arranged at a distance from each other in the front-rear direction;

the driving mechanism is arranged on the outer side of one transverse end wall, and the transverse end wall is provided with an arc-shaped hole so as to allow the rotating shaft of the cleaning part to extend out of the through-flow air duct.

Optionally, the gear mechanism further comprises:

a third gear rotatably mounted to the transverse end wall and in meshing engagement with the first gear;

a fourth gear rotatably mounted to the transverse end wall and in meshing engagement with the third gear;

the second gear and the fourth gear are fixed on the same shaft and are closer to the transverse end wall.

Alternatively, the motor of the drive mechanism directly drives the base portion.

Optionally, the air duct wall defining the through-flow air duct includes a front air duct wall, a rear air duct wall and two transverse end walls, which are arranged at intervals in the front-rear direction, and the rear air duct wall is provided with an opening;

the base portion is plate-shaped, is rotatably attached to the rear duct wall, and closes the opening when the base portion is in the storage position.

Optionally, the cleaning part abuts against the surface of the base part when the cleaning part is in the folded state.

Optionally, the cleaning part is an elongated strip extending along the axial direction of the cross-flow fan, so that when the cross-flow fan is in the unfolded state and the cross-flow fan rotates, the cleaning part and the surface of the cross-flow fan rub against each other to realize a cleaning function.

Alternatively, the cleaning part includes a plate connected to the base part and bristles mounted on one side edge of the plate.

The wall-mounted air conditioner indoor unit is provided with a cleaning device in a through-flow air duct, wherein the cleaning device comprises a base body part and a cleaning part. When the wall-mounted air conditioner indoor unit normally operates, the base body part is in the storage position, and the cleaning part is in the folded state, so that the interference effect of the base body part and the cleaning part on the air flow in the through-flow air duct is small. When the cross-flow fan needs to be cleaned, the driving mechanism is controlled to operate, so that the base body part is driven to rotate to the unfolding state while the base body part is driven to rotate to the working position, and the surface of the cross-flow fan can be cleaned. In the design scheme, the driving mechanism can drive the base body part and the cleaning part to act simultaneously, and an additional driving structure is not required to be designed for the cleaning part independently, so that the structure of the wall-mounted air conditioner indoor unit is simpler.

Further, in the wall-mounted air conditioning indoor unit of the present invention, the driving mechanism includes a gear mechanism, and the cleaning unit is provided with an intermittent motion gear. The intermittent motion gear is released outside the gear mechanism in the early stage of the gear mechanism driving the base body part to rotate to the working position. When the base body rotates to the later stage of the working position, the intermittent motion gear is meshed with the second gear of the gear mechanism, the rotating angle of the intermittent motion gear is not large, and the intermittent motion gear rotates from the folded state to the unfolded state.

Further, in the wall-mounted air conditioning indoor unit according to the present invention, the base member is plate-shaped, and when the base member is in the storage position, the opening of the rear air duct wall is closed so as to correspond to the rear air duct wall component, which makes it less likely to disturb the air flow, and also makes it easy for the operator to detach and clean the cleaning unit from the rear side of the wall-mounted air conditioning indoor unit.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily to scale. In the drawings:

fig. 1 is a schematic structural view of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention;

fig. 2 is a rear side view of the wall-mounted indoor unit of the air conditioner shown in fig. 1;

fig. 3 is a schematic structural view of a frame of the wall-mounted air conditioning indoor unit shown in fig. 1;

fig. 4 is an enlarged cross-sectional view of the wall-mounted air conditioning indoor unit of fig. 1 taken along a vertical plane extending front to back;

fig. 5 is a schematic view of the wall-mounted air conditioning indoor unit shown in fig. 4 when the cleaning device performs cleaning;

FIG. 6 is an enlarged view at A of FIG. 3;

FIG. 7 is a schematic view from another perspective of the armature shown in FIG. 3;

FIG. 8 is an enlarged view at B of FIG. 7;

fig. 9 is a schematic view of the structure shown in fig. 8 after the intermittent motion gear is engaged with the second gear.

Detailed Description

A wall-mounted air conditioning indoor unit of the present invention will be described with reference to fig. 1 to 9, in which the orientations or positional relationships indicated by "front", "rear", "upper", "lower", "top", "bottom", "inner", "outer", "lateral", etc. are based on the orientations or positional relationships shown in the drawings, only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the indicated devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

The terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first," "second," etc. may explicitly or implicitly include at least one such feature, i.e., one or more such features. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. When a feature "comprises or comprises" a or some of its intended features, this indicates that other features are not excluded and that other features may be further included, unless expressly stated otherwise.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "coupled," and the like are intended to be inclusive and mean that, for example, they may be fixedly connected or detachably connected or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. Those skilled in the art should understand the specific meaning of the above terms in the present invention according to specific situations.

Fig. 1 is a schematic view illustrating a structure of a wall-mounted type air conditioner indoor unit according to an embodiment of the present invention; fig. 2 is a rear side view of the wall-mounted indoor unit of the air conditioner shown in fig. 1; fig. 3 is a schematic structural view of a frame of the wall-mounted air conditioning indoor unit shown in fig. 1; fig. 4 is an enlarged cross-sectional view of the wall-mounted air conditioning indoor unit of fig. 1 taken along a vertical plane extending front to back; fig. 5 is a schematic view of the wall-mounted air conditioning indoor unit shown in fig. 4 when the cleaning device performs cleaning.

The embodiment of the invention provides a wall-mounted air conditioner indoor unit. An indoor unit of a wall-mounted air conditioner is an indoor part of a split wall-mounted room air conditioner for conditioning indoor air, such as cooling/heating, dehumidifying, humidifying, purifying, introducing fresh air, and the like.

As shown in fig. 1 to 5, a wall-mounted air conditioning indoor unit according to an embodiment of the present invention may generally include a casing 10, a cross-flow fan 40, and a cleaning device 20.

A through-flow duct 150 is defined in the cabinet 10. The crossflow blower 40 is disposed within the crossflow duct 150. The through-flow duct 150 has an air outlet 12. The cross-flow fan 40 is used to cause the conditioning air flow in the cross-flow duct 150 to be blown out of the casing 10 through the air outlet 12.

For example, as shown in fig. 1 and 3, the casing 10 may include a frame 15 for defining a through-flow duct 150 and a panel 16 coated outside the frame 15 for sealing and decoration.

Specifically, the casing 10 defines a receiving space for receiving a main body member of an indoor unit of a wall-mounted air conditioner, and an indoor heat exchanger 30 is disposed therein, and the indoor heat exchanger 30 is connected to a throttle device, a compressor disposed in an outdoor unit, an outdoor heat exchanger, and other refrigeration components through pipes to form a vapor compression refrigeration cycle system. Under the action of the cross flow fan 40, indoor air enters the casing 10 through the air inlet 11 of the casing 10, and forms heat exchange airflow after heat exchange with the indoor heat exchanger 30 is completed, and 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 be blown to the indoor environment, so that the indoor environment is adjusted. The air outlet 12 may be provided with an air guide member such as an air guide plate 50 and a swing blade for adjusting the air outlet direction of the air outlet 12.

The cleaning device 20 includes a base portion 100, a cleaning portion 200, and a drive mechanism 300, and the base portion 100 is movably provided in the through-flow duct 150, for example, the base portion 100 is rotatably provided in the through-flow duct 150. The cleaning unit 200 is movably attached to the base 100, and for example, the cleaning unit 200 is rotatably attached to the base 100. The drive mechanism 300 is configured to: in the process of driving the base portion 100 from a storage position (see fig. 4) distant from the cross flow fan 40 to an operation position (see fig. 5) where the cleaning unit 200 approaches the cross flow fan 40, the cleaning unit 200 is driven from a folded state stored in the base portion 100 to an unfolded state in contact with the cross flow fan 40 to clean the cross flow fan 40.

Specifically, the cleaning portion 200 may be formed in an elongated shape extending in the axial direction (X direction) of the cross flow fan 40, as shown in fig. 3, so that when the cross flow fan 40 is in the expanded state, the cleaning portion 200 and the surface of the cross flow fan 40 rub against each other to perform the cleaning function when the cross flow fan 40 is rotated. The dust can flow to the air outlet 12 along the inner wall of the through-flow duct 150, and the user can clean the dust.

Fig. 6 is an enlarged view of fig. 3 at a.

Specifically, referring to fig. 6, the cleaning part 200 may include a plate 201 connected to the base 100 and bristles 205 mounted on one side edge of the plate 201. In the deployed state, although the cleaning unit 200 is not moved, the cross-flow fan 40 rotates so that the two rotate relatively, and the bristles 205 can still brush off dust on the surface of the cross-flow fan 40.

In a wall-mounted air conditioning indoor unit according to the present invention, a cleaning device 20 is provided in a through-flow duct 150, and the cleaning device 20 includes a base portion 100 and a cleaning portion 200. During normal operation of the wall-mounted air conditioner indoor unit, the base body 100 is in the storage position, and the cleaning unit 200 is in the folded state, so that the interference of the base body 100 and the cleaning unit 200 on the air flow in the through-flow duct 150 is small. When the cross flow fan 40 needs to be cleaned, the drive mechanism 300 is controlled to operate so as to drive the base body portion 100 to the operating position and to urge the base body portion 100 to rotate to the deployed state, thereby cleaning the surface of the cross flow fan 40. In this design, the driving mechanism 300 can drive the base portion 100 and the cleaning portion 200 to operate simultaneously, and an additional driving structure for the cleaning portion 200 does not need to be separately designed, so that the structure of the wall-mounted air conditioner indoor unit is simpler.

Further, the drive mechanism 300 is further configured to: in the process of driving the base portion 100 from the working position (see fig. 5) to the storage position (see fig. 4), the cleaning unit 200 is simultaneously driven from the unfolded state to the folded state.

FIG. 7 is a schematic view of the frame 15 of FIG. 3 from another perspective; FIG. 8 is an enlarged view at B of FIG. 7;

fig. 9 is a schematic view of the structure shown in fig. 8 after the intermittent motion gear 350 is engaged with the second gear 320.

In some embodiments, referring to fig. 8 and 9, the driving mechanism 300 includes a gear mechanism, a first gear 310 of the gear mechanism is fixed to the base body 100, and specifically, the first gear 310 is fixed to the rotating shaft 110 of the base body 100. The cleaning unit 200 is provided with an intermittent gear 350. In the early stage of the process of the gear mechanism rotating the base body portion 100 from the storage position to the working position, the intermittent gear 350 is not engaged with the gears of the gear mechanism, as shown in fig. 8. At the later stage of the process of the gear mechanism driving the base body 100 to rotate from the storage position to the working position, the intermittent gear 350 starts to engage with and is driven to rotate by the second gear 320 of the gear mechanism, so as to drive the cleaning part 200 to rotate to the unfolding state, as shown in fig. 9. It can be seen that the movement of the intermittent motion gear 350 is performed intermittently. Of course, it is necessary to make the central axis of the intermittent gear 350 collinear with the rotation axis 351 of the cleaning part 200 and to fix the intermittent gear 350 to the cleaning part 200.

Similarly, in the earlier stage of the process of the gear mechanism driving the base body 100 to rotate from the working position to the storage position, the second gear 320 drives the intermittent gear 350 to rotate so as to rotate the cleaning part 200 to the folded state, and then the intermittent gear 350 disengages from the second gear 320, so that the cleaning part 200 continues to rotate with the base body 100 while maintaining the folded state until the base body 100 rotates to the storage position.

In the above embodiment of the present invention, the intermittent gear 350 is released from the gear mechanism in the early stage of the rotation of the base body 100 to the operating position by the gear mechanism. When the base body 100 rotates to the later stage of the working position, the intermittent gear 350 is engaged with the second gear 320 of the gear mechanism, which makes the rotation angle of the intermittent gear 350 not large to rotate from the folded state to the unfolded state, and the design is very ingenious.

In some embodiments, as shown in fig. 3 and 4, the duct walls defining the cross-flow duct 150 include a front duct wall 152, a rear duct wall 151, and two

transverse end walls

153, 154 spaced apart from one another in the front-to-back direction. The lateral direction, i.e., the longitudinal direction of the wall-mounted air conditioning indoor unit, cross-flow fan 40, and cross-flow duct 150, and the direction of the rotation axis of base portion 100 and cleaning unit 200 are indicated by X in the drawing. As shown in fig. 6 and 8, the driving mechanism 300 may be disposed outside one of the transverse end walls 153, and the transverse end wall 153 is opened with an arc hole 1533 to allow the rotating shaft 351 of the cleaning portion 200 to extend out of the through-flow duct 150. This allows the drive mechanism 300 to be located outside the cross-flow duct 150 without interfering with the normal flow of air within the cross-flow duct 150.

Further, as shown in fig. 8, the gear mechanism may further include a third gear 330 and a fourth gear 340. Wherein the third gear 330 is rotatably mounted to the transverse end wall 153 and is in meshing engagement with the first gear 310. Specifically, the third gear 330 may be rotatably provided on the rotation shaft 331, with the rotation shaft 331 fixed to the transverse end wall 153. The fourth gear 340 is rotatably mounted to the transverse end wall 153 and is in meshing engagement 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 to 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 coupled to the rotating shaft 351 of the cleaning part 200.

In this way, the rotation direction of the intermittent gear 350 is opposite to that of the first gear 310, the rotation directions of the cleaning part 200 and the base part 100 are opposite, and when the base part 100 is rotated to the operating position, the cleaning part 200 is rotated to the unfolded state.

Further, as shown in fig. 8, since the base body 100 requires a larger torque for rotation and the cleaning unit 200 requires a smaller torque, the motor 360 of the driving mechanism 300 can directly drive the base body 100 to better drive the base body 100 to rotate, thereby avoiding jamming. 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.

In some embodiments, the rear duct wall 151 may be provided with an opening 1513. The base portion 100 may be plate-shaped, rotatably attached to the rear duct wall 151, and may close the opening 1513 when in the storage position. The cleaning unit 200 can be connected to the lower end of the base 100 (the direction is based on the storage position).

For the cross-flow fan 40, the rear duct wall 151 is larger in size, and there is enough space to position the base portion 100, thus allowing it to be mounted to the rear duct wall 151. Of course, in some alternative embodiments, the base portion 100 may also be mounted to the forward duct wall 152.

In addition, in the present embodiment, the opening 1513 of the rear air duct wall 151 is closed by the base portion 100 to correspond to the component of the rear air duct wall 151, which makes the air flow less disturbed, and also facilitates the operator to detach and clean the cleaning portion 200 from the rear side of the wall-mounted air conditioner indoor unit. Further, the cleaning unit 200 is brought into contact with the surface of the base 100 in the folded state.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims

1. An indoor unit of a wall-mounted air conditioner, comprising:

a casing defining a through-flow duct;

the cross-flow fan is arranged in the cross-flow air duct; and

2. The wall-mounted indoor unit of air conditioner of claim 1, wherein

The drive mechanism is further configured to: the cleaning unit is driven from the unfolded state to the folded state simultaneously with the driving of the base portion from the operating position to the stored position.

3. The wall-mounted indoor unit of air conditioner of claim 2, wherein

The drive mechanism includes a gear mechanism, a first gear of the gear mechanism is fixed to the base body portion;

an intermittent motion gear is arranged on the cleaning part;

4. The wall hanging indoor unit of air conditioner of claim 3, wherein

The air duct wall for limiting the cross-flow air duct comprises a front air duct wall, a rear air duct wall and two transverse end walls which are arranged at intervals from front to back;

5. The wall mounted indoor air conditioner of claim 4, wherein the gear mechanism further comprises:

6. The wall-mounted indoor unit of air conditioner of claim 5, wherein

The motor of the drive mechanism directly drives the base portion.

7. The wall mounted indoor unit of air conditioner of claim 1, wherein

The air duct wall for limiting the through-flow air duct comprises a front air duct wall, a rear air duct wall and two transverse end walls which are arranged at intervals front and back, and an opening is formed in the rear air duct wall;

the base body portion is plate-shaped, is rotatably attached to the rear duct wall, and closes the opening when in the storage position.

8. The wall hanging indoor unit of air conditioner of claim 7, wherein

The cleaning part is in contact with the surface of the base part when the cleaning part is in the folded state.

9. The wall-mounted indoor unit of air conditioner of claim 1, wherein

The cleaning part is in a long strip shape extending along the axial direction of the cross flow fan, so that when the cross flow fan is in the unfolding state and rotates, the cleaning part and the surface of the cross flow fan are mutually rubbed to realize a cleaning function.

10. The wall hanging indoor unit of air conditioner of claim 9, wherein

The cleaning unit includes a plate connected to the base portion and bristles mounted on one side edge of the plate.