CN111256206B

CN111256206B - Air conditioner indoor unit

Info

Publication number: CN111256206B
Application number: CN201811457270.XA
Authority: CN
Inventors: 周枢; 吴剑; 费兆军; 冯志群
Original assignee: Qingdao Haigao Design and Manufacturing Co Ltd
Current assignee: Qingdao Haigao Design and Manufacturing Co Ltd
Priority date: 2018-11-30
Filing date: 2018-11-30
Publication date: 2023-02-14
Anticipated expiration: 2038-11-30
Also published as: CN111256206A

Abstract

The invention discloses an indoor unit of an air conditioner, and belongs to the field of air conditioners. This machine in air conditioning includes: the heat exchanger comprises a shell and a heat exchanger, wherein a panel is arranged on the front side of the shell, the panel can rotate to open and close the shell, the panel is opened to form an air inlet, and the panel is closed to close the air inlet; the casing is inside including being used for making the air current pass through the air inlet window, the air inlet window set up in the heat exchanger with between the panel, the window periphery of air inlet window sets up first sealing strip, under the panel closed condition first sealing strip with the panel is laminated mutually, the casing is inside still set up be used for to the steam jet subassembly of heat exchanger jet steam. The air conditioner indoor unit of the invention opens and closes the shell through the rotation of the panel, the panel can form an air inlet of the shell when opened, the panel can seal the air inlet when closed, and when cleaning steam is used for cleaning parts in the shell, the cleaning steam cannot flow out from the air inlet.

Description

Air conditioner indoor unit

Technical Field

The invention relates to the technical field of air conditioners, in particular to an indoor unit of an air conditioner.

Background

The indoor unit of the air conditioner runs for a long time, dust and dirt are easily accumulated in the indoor unit, bacteria are easily bred after the indoor unit is not cleaned for a long time, and unclean air is blown into a room through gas exchange with the external environment, so that the health of a human body is influenced. Some air conditioners have self-cleaning function, can adopt steam to wash air conditioner internal part, and when operation self-cleaning mode, steam drifted out from the air intake department of casing easily, influenced indoor air quality.

Disclosure of Invention

The embodiment of the invention provides an air conditioner indoor unit, which can seal or open an air inlet according to the cleaning state of an air conditioner, so that cleaning steam is prevented from flowing out of the air inlet when the air conditioner indoor unit executes a self-cleaning mode. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.

According to a first aspect of embodiments of the present invention, there is provided an air conditioning indoor unit, including: the heat exchanger is characterized in that a panel is arranged on the front side of the shell, the panel can rotate to open and close the shell, the panel is opened to form an air inlet, and the panel is closed to close the air inlet; the casing is inside including being used for making the air current pass through the air inlet window, the air inlet window set up in the heat exchanger with between the panel, the window periphery of air inlet window sets up first sealing strip, under the panel closed condition first sealing strip with the panel is laminated mutually, the casing is inside still set up be used for to the steam jet subassembly of heat exchanger jet steam.

In some optional embodiments, second sealing strips are arranged on the inner side of the panel, the number of the second sealing strips is two, the second sealing strips are arranged in parallel, and the second sealing strips surround a shielding area for shielding the air inlet window on the inner side of the panel; and under the panel closing state, one of the second sealing strips is attached to the inner periphery of the first sealing strip, and the other second sealing strip is attached to the outer periphery of the first sealing strip.

In some optional embodiments, the air inlet window includes a frame, a groove is arranged on the inner periphery of the frame, and the second sealing strip attached to the inner periphery of the first sealing strip is clamped into the groove when the panel is in the closed state.

In some optional embodiments, the lower part of one side of the first sealing strip is bent outwards to form a buffering part, the rest part of the first sealing strip is a fitting part, the fitting part is fitted with the second sealing strip, and the buffering part is used for preventing the first sealing strip and the second sealing strip from being sealed too tightly.

In some optional embodiments, the panel is provided with a lining plate on the inner side, and the second sealing strip is arranged on the inner side surface of the lining plate.

In some optional embodiments, the two sides of the lining plate are provided with guide parts, the guide parts extend in the direction far away from the lining plate and are perpendicular to the lining plate, and the guide parts extend into the shell when the panel is closed.

In some optional embodiments, an arc-shaped rack is disposed on an inner side wall of the guide portion, the arc-shaped rack is perpendicular to the lining plate and is bent towards a direction away from the lining plate, and the housing further comprises: the panel opening and closing mechanism comprises a first gear and a first driving device, wherein the first gear is meshed with the arc-shaped rack, and the first driving device is used for driving the first gear to rotate so as to drive the panel to open and close.

In some alternative embodiments, the arc of the arcuate rack is 90 degrees.

In some optional embodiments, a side of the casing, which is away from the panel, is provided with a mounting portion, the mounting portion is used for mounting the air conditioning indoor unit to a wall, and the panel is parallel to the mounting portion in the open state.

In some optional embodiments, the casing further includes an air outlet duct, and a sealing assembly is disposed in the air outlet duct and is used for opening and sealing the air outlet duct.

The technical scheme provided by the embodiment of the invention can have the following beneficial effects:

according to the air conditioner indoor unit, the shell is opened and closed through rotation of the panel, the panel can form the air inlet of the shell when opened, the panel can close the air inlet of the shell when closed, the first sealing strip is arranged on the periphery of the window of the air inlet window in the shell, the first sealing strip is attached to the panel when the panel is closed, and when the steam jet assembly performs steam cleaning on the heat exchanger, steam cannot flow out of the air inlet.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic structural view illustrating an indoor unit of an air conditioner in a state where a panel is opened according to an exemplary embodiment;

fig. 2 is a schematic structural view of an indoor unit of an air conditioner according to an exemplary embodiment, with a panel removed;

fig. 3 is a side view illustrating an air conditioning indoor unit in a state where a panel is opened according to an exemplary embodiment;

fig. 4 is a side view illustrating a panel of an indoor unit of an air conditioner in a closed state according to an exemplary embodiment;

fig. 5 is a schematic view showing a combined structure of an indoor unit of an air conditioner, a water pump and a water storage tank according to an exemplary embodiment;

fig. 6 is a schematic structural view illustrating an inner side of a panel of an indoor unit of an air conditioner according to another exemplary embodiment;

fig. 7 is a partial schematic view of the inside of a panel of an air conditioning indoor unit shown in accordance with another exemplary embodiment;

fig. 8 is a schematic structural view illustrating a first driving device of an air conditioning indoor unit according to an exemplary embodiment;

fig. 9 is a schematic structural view illustrating a closure assembly of an indoor unit of an air conditioner according to an exemplary embodiment;

fig. 10 is a side sectional view illustrating an air duct shutter of an indoor unit of an air conditioner in an opened state, according to an exemplary embodiment;

fig. 11 is a side sectional view illustrating a closed state of a duct shutter of an indoor unit of an air conditioner according to an exemplary embodiment.

In the figure, 1, a housing; 11. a panel; 12. an air outlet; 13. a liner plate; 131. a guide portion; 14. an installation part; 15. a volute component; 16. a volute tongue; 17. an air outlet duct; 2. a heat exchanger; 3. an air inlet window; 31. a trench; 4. a first seal strip; 41. a buffer section; 5. a second seal strip; 6. an occlusion region; 70. an arc-shaped rack; 71. a first gear; 72. a first driving device; 721. a first motor; 722. a driving wheel; 723. a driven wheel; 724. a belt; 725. a first drive shaft; 73. a support; 80. a water tank; 81. a delivery pipe; 82. a water pump; 91. an air duct baffle; 92. a second motor; 93. a second drive shaft; 94. a coupling is provided.

Detailed Description

The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, and all available equivalents of the claims. Embodiments may be referred to, individually or collectively, herein by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed.

The terms "first," "second," and the like, herein are used solely to distinguish one element from another without requiring or implying any actual such relationship or order between such elements. In fact, a first element could be termed a second element, and vice versa. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, or apparatus comprising the element. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. As for the method, the product and the like disclosed in the embodiment, the description is simple because the method corresponds to the method part disclosed in the embodiment, and the relevant parts can be referred to the method part for description.

The terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like herein, as used herein, are defined as orientations or positional relationships based on those shown in the drawings, merely for convenience of description and to simplify description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention. In the description herein, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, mechanical or electrical connections, communications between two elements, direct connections, and indirect connections via intermediary media, where the specific meaning of the terms is understood by those skilled in the art as appropriate.

The term "front" as used herein refers to the side of the casing that is away from the wall when the indoor unit of the air conditioner is mounted on the wall, and the term "rear" refers to the side of the casing that is closer to the wall.

Fig. 1 is a schematic structural view illustrating an indoor unit of an air conditioner in a state where a panel is opened according to an exemplary embodiment; fig. 2 is a schematic structural view of an indoor unit of an air conditioner according to an exemplary embodiment, with a panel removed.

As shown in fig. 1 and 2, an indoor unit of an air conditioner includes: the heat exchanger comprises a shell 1 and a heat exchanger 2, wherein a panel 11 is arranged on the front side of the shell 1, the panel 11 can rotate to open and close the shell 1, the panel 11 is opened to form an air inlet, and the panel 11 is closed to close the air inlet; the air inlet window 3 used for enabling air flow to pass through is arranged inside the shell 1, the air inlet window 3 is arranged between the heat exchanger 2 and the panel 11, the first sealing strip 4 is arranged on the periphery of the window of the air inlet window 3, the first sealing strip 4 is attached to the panel 11 in the closed state of the panel 11, and the steam injection assembly used for injecting steam to the heat exchanger 2 is further arranged inside the shell 1.

Fig. 3 is a side view illustrating an air conditioning indoor unit in a state where a panel is opened according to an exemplary embodiment; fig. 4 is a side view illustrating a panel of an indoor unit of an air conditioner in a closed state according to an exemplary embodiment; fig. 5 is a schematic view illustrating a combined structure of an indoor unit of an air conditioner, a water pump and a water storage tank according to an exemplary embodiment.

As shown in fig. 5, optionally, the steam injection assembly comprises: steam generator, water tank 80 and be used for with steam injection to the steam nozzle of heat exchanger 2, steam generator sets up inside casing 1 and is linked together through conveyer pipe 81 and water tank 80, and steam generator is used for heating into steam with the water that comes, and steam nozzle and steam generator intercommunication. The steam generator can be made of the existing product. The water is delivered from the water tank 80 to the steam generator, and the generated steam is sprayed onto the heat exchanger 2 by the steam nozzle, so that the heat exchanger 2 is cleaned.

In this embodiment, when the indoor unit of the air conditioner is in normal operation, as shown in fig. 3, the panel 11 rotates to a side away from the casing 1, and an air inlet is formed between the panel 11 and the casing 1, through which air enters and passes through the air inlet window 3 to reach the inside of the casing 1. When the steam injection assembly cleans the heat exchanger 2, as shown in fig. 4, the panel 11 rotates to a side close to the casing 1 until the panel 11 covers the casing 1, and a closed cleaning space is formed in the casing 1. Through this embodiment, when the machine carries out steam washing in the air conditioning, steam can not follow casing 1 inside and wave out, and when normal use, the machine can form the air intake in the air conditioning.

Optionally, the air inlet is facing upwards or downwards.

Optionally, a water pump 82 is provided on the delivery pipe 81. In this way, the water pump 82 is able to deliver water to the steam generator, ensuring that water is continuously and reliably supplied.

Alternatively, the lower portion of the panel 11 is rotatably connected to the housing 1 by a hinge. In this way, the panel 11 can rotate relative to the housing 1.

Optionally, the first sealing strip 4 is a rubber strip.

Fig. 6 is a schematic view illustrating a structure of an inner side of a panel of an indoor unit of an air conditioner according to another exemplary embodiment.

In an embodiment of the present invention, as shown in fig. 6, the second sealing strips 5 are disposed inside the panel 11, the number of the second sealing strips 5 is two and are disposed in parallel, and the second sealing strips 5 enclose a shielding area 6 for shielding the opening of the air inlet window 3 inside the panel 11; in the closed state of the panel 11, one of the second seal strips 5 is attached to the inner periphery of the first seal strip 4, and the other second seal strip 5 is attached to the outer periphery of the first seal strip 4.

Optionally, the spacing between the two second sealing strips 5 is equal to the width of the first sealing strip 4. In this way, in the closed state of the panel 11, one of the second weather strips 5 can be attached to the inner periphery of the first weather strip 4, and the other second weather strip 5 can be attached to the outer periphery of the first weather strip 4.

Optionally, the second sealing strip 5 is a rubber strip.

In this embodiment, when the panel 11 is closed, the shielding region 6 enclosed by the second sealing strips 5 at the inner side of the panel 11 covers the window of the air inlet window 3, one of the second sealing strips 5 is attached to the inner periphery of the first sealing strip 4, and the other second sealing strip 5 is attached to the outer periphery of the first sealing strip 4, so as to prevent the steam from being emitted from the air inlet window 3. By adopting the embodiment, the air inlet window 3 can be automatically sealed in the cleaning state of the indoor unit of the air conditioner, so that cleaning steam can be prevented from being scattered, and liquid cleaning medium can be prevented from flowing out.

As shown in fig. 1, the air inlet window 3 includes a frame, a groove 31 is formed in an inner periphery of the frame, and the second sealing strip 5 attached to an inner periphery of the first sealing strip 4 is inserted into the groove 31 when the panel 11 is closed. In this embodiment, the first sealing strip 4 is caught in the groove 31, making it more difficult for steam to seep out from the outer edge of the window of the louver 3.

Optionally, the lower portion of one side of the first sealing strip 4 is bent outward to form a buffer portion 41, the rest portion of the first sealing strip 4 is a fitting portion, the fitting portion is fitted with the second sealing strip 5, and the buffer portion 41 is used for preventing the first sealing strip 4 and the second sealing strip 5 from being sealed too tightly.

In the present embodiment, as shown by the broken line in fig. 2, when the panel 11 is closed, the cushioning portion 41 is configured such that the first weather strip 4 portion is bonded to the second weather strip 5, the portion of the first weather strip 4 other than the cushioning portion 41 is a bonded portion, the bonded portion is bonded to the second weather strip 5, the cushioning portion 41 is not bonded to the second weather strip 5, and a gas storage space is formed between the cushioning portion 41 and the second weather strip 5; when the panel 11 is opened, the first sealing strip 4 is separated from the second sealing strip 5, friction exists between the first sealing strip 4 and the second sealing strip 5 of the attaching portion, and the first sealing strip 4 and the second sealing strip 5 of the buffering portion 41 do not have friction due to non-contact, so that the first sealing strip 4 and the second sealing strip 5 can be separated from each other more easily, and gas in the gas storage space preferentially enters the window of the air inlet window 3, which is beneficial to the balance of the air pressure inside and outside the air inlet window 3, and the panel 11 is opened conveniently. By this embodiment, the panel 11 of the air conditioning indoor unit can be more easily opened.

As shown in fig. 6, a lining board 13 is provided on the inner side of the panel 11, and the second weather strip 5 is provided on the inner surface of the lining board 13. The lining plate 13 can enhance the sealing effect of the closed panel 11 and the mechanical strength of the panel 11, and when the panel is installed, the second sealing strip 5 is installed on the lining plate 13, and then the lining plate 13 is installed on the inner side of the panel 11, so that the panel is convenient to install.

Optionally, guide portions 131 are disposed on two sides of the lining 13, the guide portions 131 extend away from the lining 13 and are perpendicular to the lining 13, and the guide portions 131 extend into the interior of the housing 1 when the panel 11 is closed. When the panel 11 is closed, the guide portion 131 can be preferentially inserted into the casing 1 and attached to the inner side walls of the casing 1, so that the closing operation of the panel 11 is more stable.

Fig. 7 is a partial schematic view illustrating an inside of a panel of an air conditioning indoor unit according to another exemplary embodiment.

Alternatively, as shown in fig. 6 and 7, an arc-shaped rack 70 is disposed on the inner side wall of the guiding portion 131, and the arc-shaped rack 70 is perpendicular to the lining plate 13 and is bent towards a direction away from the lining plate 13, as shown in fig. 7, the housing 1 further includes: the first gear 71 is meshed with the arc-shaped rack 70, and the first driving device 72 is used for driving the first gear 71 to rotate so as to drive the panel 11 to open and close.

The arc of the arc-shaped rack 70 is 90 degrees.

In this embodiment, the first driving device 72 drives the first gear 71 to rotate, so as to drive the arc-shaped rack 70 to rotate, and further drive the panel 11 to rotate, thereby opening and closing the panel 11. This embodiment facilitates the opening and closing control of the panel 11.

Fig. 8 is a schematic structural view illustrating a first driving device of an indoor unit of an air conditioner according to an exemplary embodiment.

Alternatively, as shown in fig. 8, the first driving device 72 includes: the driving wheel 722 is sleeved on a driving shaft of the first motor 721, two ends of the belt 724 are respectively sleeved on the driving wheel 722 and the driven wheel 723, the first transmission shaft 725 is rotatably connected with the shell 1, the driven wheel 723 is sleeved on the first transmission shaft 725, and the first gear 71 is sleeved on the first transmission shaft 725. In this embodiment, the driving wheel 722 rotates to drive the driven wheel 723 to rotate through the belt 724, and the driven wheel 723 transmits power to the first gear 71 through the first transmission shaft 725. Through this embodiment, the air conditioning indoor unit can control the opening and closing operation of the panel 11.

Optionally, a bracket 73 is further fixedly mounted inside the housing 1, a bearing is disposed on the bracket 73, and the first transmission shaft 725 is inserted through the bearing.

Alternatively, the number of the arc-shaped racks 70 is two and is respectively disposed inside the two guide portions 131 of the liner 13, the number of the first gears 71 is also two and is respectively engaged with the arc-shaped racks 70, and both ends of the first transmission shaft 725 respectively pass through one first gear 71. Thus, the opening and closing action of the panel 11 is made more smooth.

As shown in fig. 3 and 4, a mounting portion 14 is provided on a side of the casing 1 away from the panel 11, the mounting portion 14 is used for mounting the air conditioning indoor unit to a wall, and the panel 11 is in an upright state in an open state. In this embodiment, the panel 11 is in a vertical state when opened, and on one hand, an air inlet formed with the housing 1 faces upward, so that air flows into the housing 1 from the upper part of the housing 1, and air is easy to enter; on the other hand, the vertical state of the panel 11 is more stable than the inclined state, and the panel 11 is prevented from pulling the joint of the panel 11 and the housing 1 due to the self weight, so that the joint is prevented from being deformed or damaged, and even the panel 11 is prevented from falling. The panel 11 is inclined when closed, and the panel 11 covers the housing 1, and its own weight generates pressure on the housing 1, so that the closed state is more stable.

In some optional embodiments, the casing 1 further includes an air outlet duct 17 inside, and a sealing component is disposed in the air outlet duct 17, and the sealing component is used for opening and sealing the air outlet duct 17.

When the air outlet duct 17 is opened by the sealing component, the air flow can be discharged from the air outlet duct 17, and when the air outlet duct 17 is closed by the sealing component, the sealing component can block the steam from flowing out of the air outlet duct 17. The sealing component seals the air outlet duct 17 inside the air outlet duct 17, and the air outlet 12 is closed by matching with the air deflector, so that the sealing effect of the air outlet duct 1710 is enhanced.

Fig. 9 is a schematic view showing the structure of a second closing member of an indoor unit of an air conditioner according to an exemplary embodiment. As shown in fig. 9, the closure assembly includes: the air duct baffle 91, the air duct baffle 91 is used for sealing the air outlet duct 17; and the second driving device is connected with the air duct baffle 91 and drives the air duct baffle 91 to switch between an opening position and a closing position, wherein the air duct baffle 91 leaves the air outlet duct 17 when the air duct baffle 91 is in the opening position, and the air duct baffle 91 seals the air outlet duct 17 when the air duct baffle 91 is in the closing position.

Optionally, the second drive means comprises: the second motor 92 and the second transmission shaft 93, the output shaft of the second motor 92 is connected with the second transmission shaft 93 through the coupler 94, and the second transmission shaft 93 extends along the length direction of the air duct baffle 91 and is fixedly connected with the air duct baffle 91.

Optionally, as shown in fig. 10, the housing 1 further includes inside: the volute component 15 is internally provided with a volute tongue 16, and an air outlet 12 of the volute component 15 is communicated with an air outlet duct 17. Optionally, the heat exchanger 2 is arranged at the air inlet of the volute component 15.

Thus, when the air outlet duct 17 needs to be closed, as shown in fig. 10, the second motor 92 drives the second transmission shaft 93 to rotate, and further drives the duct baffle 91 to rotate until the free end of the duct baffle 91 abuts against the volute tongue 16, so as to prevent steam from flowing out of the air outlet duct 17; when the air outlet duct 17 needs to be opened, as shown in fig. 11, the duct baffle 91 rotates reversely until the free end abuts against the volute member 15, so as to leave the air outlet duct 17. Through this embodiment, the air-conditioning indoor unit can seal the air outlet duct 17 to prevent the steam from flowing out, and a closed cleaning space can be formed inside the casing 1 of the air-conditioning indoor unit in combination with the closing of the panel 11.

In the embodiments disclosed herein, it should be understood that the disclosed methods, products, including but not limited to devices, apparatuses, etc., may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a mechanism or a component is only one type of division of logical functions, and there may be other divisions when an actual implementation is performed, for example, a plurality of mechanisms or components may be combined or integrated into another system, or some features may be omitted. The mechanisms or components described as separate parts may or may not be physically separate, and parts shown as mechanisms or components may or may not be physical mechanisms or components, may be located in one place, or may be distributed on a plurality of network mechanisms or components. Some or all of the mechanisms or components can be selected according to actual needs to achieve the purpose of the solution of the embodiment. In addition, each functional mechanism or component in each embodiment of the present invention may be integrated into one processing mechanism or component, each mechanism or component may exist alone physically, or two or more mechanisms or components may be integrated into one mechanism or component.

The present invention is not limited to the structures that have been described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims

1. An indoor unit of an air conditioner, comprising: the heat exchanger is characterized in that a panel is arranged on the front side of the shell, the panel can rotate to open and close the shell, the panel is opened to form an air inlet, and the panel is closed to close the air inlet; the shell is internally provided with an air inlet window for enabling air flow to pass through, the air inlet window is arranged between the heat exchanger and the panel, a first sealing strip is arranged on the periphery of the window of the air inlet window, the first sealing strip is attached to the panel in a closed state of the panel, and a steam injection assembly for injecting steam to the heat exchanger is further arranged in the shell;

the inner side of the panel is provided with two second sealing strips which are arranged in parallel, and the second sealing strips surround a shielding area for shielding a window of the air inlet window on the inner side of the panel; in the closed state of the panel, one of the second sealing strips is attached to the inner periphery of the first sealing strip, and the other second sealing strip is attached to the outer periphery of the first sealing strip;

the lower part of one side of first sealing strip is outside bending formation buffering portion, the rest of first sealing strip is laminating portion, laminating portion with the second sealing strip laminates mutually, buffering portion is used for preventing that first sealing strip and second sealing strip are sealed tight.

2. The indoor unit of an air conditioner according to claim 1, wherein the air inlet window includes a frame, a groove is formed in an inner periphery of the frame, and a second sealing strip attached to an inner periphery of the first sealing strip is clamped into the groove when the panel is closed.

3. An indoor unit of an air conditioner according to claim 1, wherein a lining sheet is provided on an inner side of the panel, and the second sealing tape is provided on an inner side surface of the lining sheet.

4. An indoor unit of an air conditioner according to claim 3, wherein guide portions are provided on both sides of the lining plate, the guide portions extend in a direction away from the lining plate and are perpendicular to the lining plate, and the guide portions extend into the inside of the casing when the panel is closed.

5. An indoor unit of an air conditioner as claimed in claim 4, wherein an arc-shaped rack is provided on an inner sidewall of the guide portion, the arc-shaped rack being perpendicular to the lining plate and being bent toward a direction away from the lining plate, the indoor unit further comprising: the panel opening and closing device comprises a first gear and a first driving device, wherein the first gear is meshed with the arc-shaped rack, and the first driving device is used for driving the first gear to rotate so as to drive the panel to open and close.

6. An indoor unit of an air conditioner according to claim 5, wherein the arc degree of the arc-shaped rack is 90 degrees.

7. An indoor unit of an air conditioner as claimed in claim 1, wherein a mounting part is provided on a side of the casing remote from the panel, the mounting part being used to mount the indoor unit to a wall, and the panel is parallel to the mounting part in an open state.

8. An indoor unit of an air conditioner as claimed in claim 1, wherein the casing further includes an air outlet duct, and a sealing member is provided in the air outlet duct and used for opening and sealing the air outlet duct.