Air conditioner indoor unit and disassembly and assembly method thereof

Abstract

The invention provides an air conditioner indoor unit and a disassembly and assembly method thereof, the air conditioner indoor unit comprises a shell, an overhaul plate and a first fixing device, an overhaul opening is formed in one side of the shell, and the overhaul plate is arranged at the overhaul opening to block the overhaul opening. The overhauling plate is provided with a receding cavity and a rear wall used for limiting the receding cavity. The first fixing device comprises a first bolt, a first clamping block and a blocking piece, and the first bolt is installed on the shell. And the outer end of the connecting rod is connected with the stop block. And the connecting rod is rotatably arranged on the shell in a penetrating manner, so that the baffle block is rotated to a position where the rear wall is pressed against the shell. The inner end of the connecting rod is in transmission connection with the inner end of the first bolt so that the connecting rod can be driven by the first bolt to rotate after the first bolt moves outwards by a first preset distance. According to the air conditioner indoor unit and the dismounting and mounting method thereof, the overhauling plate can be prevented from falling, and potential safety hazards are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and particularly to an indoor unit of an air conditioner and a disassembly and assembly method thereof. Background Art

[0002] An access panel or an access door is provided on the indoor unit of a combined air conditioner to block an access opening. Generally, a large indoor unit uses an access door, and the access door is connected to the housing of the indoor unit through a hinge. For a small indoor unit, in order to make full use of space, an access panel is usually used to block the access opening. The indoor unit of a ceiling-mounted air conditioner is small in size, and an access panel is generally used to block the access opening. When a maintenance worker opens the access panel, the bolts fixing the access panel to the housing of the indoor unit are loosened. At this time, there is no connection relationship between the access panel and the housing of the indoor unit, and the access panel is likely to fall. Since the indoor unit of a ceiling-mounted air conditioner is suspended in the air, the falling of the access panel may injure indoor personnel and easily cause potential safety hazards. Summary of the Invention

[0003] In view of the above problems, the present invention is proposed to provide an indoor unit of an air conditioner and a disassembly and assembly method thereof that can overcome or at least partially solve the above problems, which can prevent the access panel from falling, thereby reducing potential safety hazards. And the disassembly and assembly process of the access panel is simple and convenient.

[0004] Specifically, the present invention provides an indoor unit of an air conditioner, including a housing, an access panel, and a first fixing device. An access opening is provided on one side of the housing; the access panel is disposed at the access opening to block the access opening; the access panel has a relief cavity and a rear wall for defining the relief cavity.

[0005] The first fixing device includes:

[0006] A first bolt, which is installed on the housing;

[0007] A first clamping block, which is rotatably disposed at the outer end of the first bolt to press the access panel when the first bolt is tightened;

[0008] A stopper, which includes a connecting rod and a stopper block. The outer end of the connecting rod is connected to the stopper block; the connecting rod is rotatably passed through the housing so that the stopper block rotates to a position where the rear wall is pressed against the housing; the inner end of the connecting rod is in transmission connection with the inner end of the first bolt, so that the connecting rod rotates under the drive of the first bolt after the first bolt moves outward by a first preset distance.

[0009] Optionally, the bolt column of the first bolt includes:

[0010] A first threaded section, which is connected to the threaded hole on the housing;

[0011] A second section, which is arranged inside the first threaded section and configured to be horizontally movable in the threaded hole;

[0012] The first fixing device further includes:

[0013] A rotating block, which is arranged at the inner end of the second section;

[0014] A rotating cylinder, which is rotatably installed on the housing. The rotating block is configured to be inserted into the rotating cylinder, and the rotating cylinder is used to drive the connecting rod to rotate.

[0015] Optionally, the rotating cylinder is in gear meshing with the connecting rod;

[0016] The rotating block is a nut, and the nut is threadedly connected to the second section;

[0017] A through hole allowing the stopper to pass through is provided on the rear wall.

[0018] Optionally, the connecting rod and the housing are threadedly connected.

[0019] Optionally, after moving outward with the first bolt, the first clamping block is configured to contact the lower end of the first clamping block when the maintenance plate rotates outward around the lower edge of the maintenance opening by a first preset angle.

[0020] Optionally, a rotating hole and a fixing hole located below the rotating hole are provided on the first clamping block, and the rotating hole and the fixing hole are communicated;

[0021] The rotating hole is matched with the bolt column of the first bolt, and the rotating hole allows the pressing block of the first bolt to press the first clamping block;

[0022] The fixing hole is matched with the pressing block, so that the first clamping block and the first bolt rotate synchronously.

[0023] Optionally, the indoor unit of the air conditioner further includes a second fixing device, and the second fixing device includes a second bolt and a second clamping block; the second bolt is installed on the housing; the second clamping block is rotatably arranged on the second bolt, and the second clamping block is arranged outside the housing to press the vertical edge of the maintenance plate when the second bolt is tightened.

[0024] Optionally, the housing includes a first housing and a second housing. The first bolt is installed on the first housing, and the outer surface of the first housing and the outer surface of the maintenance plate are in the same plane; the second housing is arranged inside the rear wall, and the second housing and the stopper clamp the rear wall;

[0025] The upper edge of the access panel has an inwardly turned edge, and the turned edge includes the rear wall; or at least the upper portion of the access panel is a hollow structure to form the clearance cavity.

[0026] The present invention also provides a method for disassembling and assembling an indoor unit of an air conditioner as described in any one of the above items, comprising:

[0027] rotating the first bolt in a first direction;

[0028] After the first bolt moves outwardly of the access plate by a second preset distance, the first bolt is pulled outwardly of the access plate to move the first bolt outwardly by the first preset distance;

[0029] rotating the first bolt in a second direction or in the first direction, the first direction being opposite to the second direction;

[0030] The first clamping block is rotated to a second preset angle to remove the inspection plate.

[0031] Optionally, the disassembly and assembly method further includes:

[0032] The inspection plate is placed at the inspection opening, and the first clamping block is rotated to a second preset angle;

[0033] rotating the first bolt;

[0034] Pushing the first bolt toward the inner side of the access plate;

[0035] After the first bolt moves toward the inner side of the access plate, the first bolt is rotated in a second direction until the first bolt is tightened.

[0036] In the indoor unit of the air conditioner and the disassembly and assembly method thereof of the present invention, the access panel is fixed on the outside of the access panel by the first clamping block, and the access panel is fixed on the inside of the access panel. When disassembling the access panel, the first bolt is pulled outwardly of the access panel. The first bolt is rotated after the first bolt moves outwardly by a first preset distance. Since the connecting rod is in transmission connection with the first bolt, the connecting rod and the block rotate with the first bolt. After the block rotates, the block no longer presses the shell, and there is no connection between the access panel and the shell, so that the access panel can be removed. The operation sequence during installation is opposite to the sequence of disassembly. When installing the access panel, the first bolt is rotated in the opposite direction. The first bolt drives the block to rotate, so that the block rotates to a position where the rear wall is pressed against the shell. Then, the first clamping block is pressed against the access panel by the first bolt.

[0037] The access panel is double-fixed by the inside and outside, which improves the tightness of the access panel installation, prevents the access panel from falling, and reduces safety hazards. Moreover, the access panel can be connected or disconnected from the housing by turning the first bolt, which is simple to operate and convenient for installation and removal of the access panel.

[0038] Further, when the maintenance board has no connection relationship with the housing, after the upper end of the maintenance board is turned outwards by a first preset angle, it touches the first catch block, and the first catch block on the outside prevents the upper end of the maintenance board from turning outwards, further preventing the maintenance board from falling, thereby reducing the occurrence of potential safety hazards.

[0039] Further, the indoor unit of the air conditioner and the disassembly and assembly method thereof according to the present invention further include a second fixing device. By loosening the second bolt and then rotating the second catch block, the second catch block no longer blocks the maintenance board, so that the maintenance board can be removed. During installation, the second catch block is rotated to a position where it can block the maintenance board, and then the second bolt is tightened to complete the installation of the maintenance board. It is not necessary to remove all the bolts to install and disassemble the maintenance board, making the installation and disassembly process of the maintenance board more convenient.

[0040] From the following detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more clearly aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Some specific embodiments of the present invention will be described in detail hereinafter with reference to the accompanying drawings in an illustrative but not restrictive manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0042] Figure 1 is a schematic structural diagram of the fixing of the maintenance board of the indoor unit of the air conditioner according to an embodiment of the present invention;

[0043] Figure 2 is Figure 1 a schematic partial structural diagram at A in

[0044] Figure 3 is a schematic structural diagram of the catch block pressing the maintenance board of the indoor unit of the air conditioner according to an embodiment of the present invention;

[0045] Figure 4 is a schematic structural diagram of the fixing of the maintenance board of the indoor unit of the air conditioner according to another embodiment of the present invention;

[0046] Figure 5 is a schematic structural diagram of the indoor unit of the air conditioner after the maintenance board is disassembled according to an embodiment of the present invention;

[0047] Figure 6 is Figure 5 a schematic partial structural diagram at B in

[0048] Figure 7 is a schematic structural diagram of the catch block loosening the maintenance board of the indoor unit of the air conditioner according to an embodiment of the present invention;

[0049] Figure 8 It is a schematic structural diagram after the disassembly and installation of the maintenance board of the indoor unit of an air conditioner according to an embodiment of the present invention;

[0050] Figure 9 It is a schematic external structural diagram of the fixed maintenance board of the indoor unit of an air conditioner according to an embodiment of the present invention;

[0051] Figure 10 It is a schematic external structural diagram after the disassembly of the second fixing device of the indoor unit of an air conditioner according to an embodiment of the present invention;

[0052] Figure 11 It is a schematic external structural diagram after the disassembly of the first fixing device and the second fixing device of the indoor unit of an air conditioner according to an embodiment of the present invention;

[0053] Figure 12 It is a schematic structural diagram of the first clamping block of the indoor unit of an air conditioner according to an embodiment of the present invention;

[0054] Figure 13 It is a schematic structural diagram of the first bolt of the indoor unit of an air conditioner according to an embodiment of the present invention;

[0055] Figure 14 It is a schematic flowchart of the disassembly method in the disassembly and installation method of the indoor unit of an air conditioner according to an embodiment of the present invention;

[0056] Figure 15 It is a schematic flowchart of the installation method in the disassembly and installation method of the indoor unit of an air conditioner according to an embodiment of the present invention. Detailed implementation manners

[0057] Next, refer to Figures 1 to 15 to describe the indoor unit of the air conditioner and its disassembly and installation method according to the embodiments of the present invention. In the description of this embodiment, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features, that is, including one or more of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined. When a certain feature "includes or contains" a certain or certain features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.

[0058] Unless otherwise clearly defined and limited, terms such as "set", "install", "connect", "couple", "fix", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. Those of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present invention according to specific circumstances.

[0059] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but in contact through additional features therebetween. That is, in the description of this embodiment, the first feature being "above", "over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "beneath", or "under" the second feature may be the first feature being directly below or obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0060] In the description of this embodiment, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0061] Figure 1 is a schematic structural diagram of the fixing of the maintenance board of an indoor unit of an air conditioner according to an embodiment of the present invention, as Figure 1 shown, and with reference to Figures 2 to 15, an embodiment of the present invention provides an indoor unit of an air conditioner, including a housing 10, a maintenance panel 20, and a first fixing device 30. An inspection opening is provided on one side of the housing 10. The maintenance panel 20 is arranged at the inspection opening to block the inspection opening. The maintenance panel 20 has a relief cavity 21 and a rear wall 22 for defining the relief cavity 21. The first fixing device 30 includes a first bolt 31, a first block 32, and a stopper. The first bolt 31 is installed on the housing 10. The first block 32 is rotatably arranged at the outer end of the first bolt 31 to press the maintenance panel 20 when the first bolt 31 is tightened. The stopper includes a connecting rod 41 and a stopper block 42. The outer end of the connecting rod 41 is connected to the stopper block 42. The connecting rod 41 is rotatably passed through the housing 10 so that the stopper block 42 rotates to a position where the rear wall 22 is pressed against the housing 10. The inner end of the connecting rod 41 is drivingly connected to the inner end of the first bolt 31 so that the connecting rod 41 rotates under the drive of the first bolt 31 after the first bolt 31 moves outward a first preset distance.

[0062] In this embodiment, the maintenance panel 20 is fixed on the outside of the maintenance panel 20 through the first fixing device 30, and the stopper fixes the maintenance panel 20 on the inside of the maintenance panel 20. When disassembling the maintenance panel 20, pull the first bolt 31 in the outer direction of the maintenance panel 20. When the first bolt 31 moves outward a first preset distance, rotate the first bolt 31. Since the connecting rod 41 is drivingly connected to the first bolt 31, the connecting rod 41 and the stopper block 42 rotate following the first bolt 31. After the stopper block 42 rotates, the stopper block 42 no longer presses the housing 10, and there is no connection relationship between the maintenance panel 20 and the housing 10, so that the maintenance panel 20 can be removed.

[0063] The operation sequence during installation is opposite to the disassembly sequence. When installing the maintenance panel 20, rotate the first bolt 31 in the opposite direction. The first bolt 31 drives the stopper block 42 to rotate so that the stopper block 42 rotates to a position where the rear wall 22 is pressed against the housing 10. Then, the first block 32 is pressed against the maintenance panel 20 through the first bolt 31.

[0064] By fixing the maintenance panel 20 doubly from the inside and the outside, the fastening of the installation of the maintenance panel 20 is improved, the maintenance panel 20 is prevented from falling, and potential safety hazards are reduced. Moreover, connecting or disconnecting the maintenance panel 20 from the housing 10 can be completed by rotating the first bolt 31, and the operation method is simple, which is convenient for the installation and disassembly of the maintenance panel 20.

[0065] The opposite direction is the direction opposite to the rotation of the first bolt 31 when disassembling the maintenance panel 20. For example: when disassembling the maintenance panel 20, rotate the first bolt 31 to the left. When installing the maintenance panel 20, rotate the first bolt 31 to the right.

[0066] In some embodiments of the present invention, a through hole allowing the stopper block 42 to pass through is provided on the rear wall 22 of the maintenance panel 20.

[0067] In this embodiment, the stopper 42 passes through the through-hole. By rotating the stopper 42, the stopper 42 is misaligned with the through-hole, so that the stopper 42 presses the rear wall 22 against the housing 10. The flange 23 around the through-hole supports the connecting rod 41, making the fixing of the access panel 20 by the stopper more firm, preventing the access panel 20 from falling, and reducing potential safety hazards.

[0068] In some embodiments of the present invention, the stopper 42 has a rod-shaped structure.

[0069] In some embodiments of the present invention, the stopper 42 has a cross-shaped structure. Correspondingly, the through-hole on the rear wall 22 of the access panel 20 is also a cross-shaped through-hole.

[0070] In some embodiments of the present invention, as Figure 4 shown, the upper side edge of the access panel 20 has an inward flange 23. The flange 23 includes a rear wall 22, and the cavity inside the access panel 20 is a relief cavity 21.

[0071] In some embodiments of the present invention, at least the upper part of the access panel 20 is a hollow structure to form a relief cavity 21. Preferably, the access panel 20 is a hollow structure. In some alternative embodiments of the present invention, as Figure 1 shown, the relief groove constitutes the hollow structure of at least the upper part of the access panel 20. The stopper 42 enters the relief cavity 21. When the stopper 42 is rotated and is parallel to the vertical plane, the stopper 42 is stuck in the relief cavity 21, so that the access panel 20 presses against the housing 10.

[0072] In some embodiments of the present invention, the bolt column 313 of the first bolt 31 includes a first threaded section and a second section. The first threaded section is connected to the threaded hole on the housing 10. The second section is arranged inside the first threaded section, and the second section is configured to be horizontally movable in the threaded hole. The first fixing device 30 further includes a rotating block 50 and a rotating cylinder 60. The rotating block 50 is arranged at the inner end of the second section. The rotating cylinder 60 is rotatably installed on the housing 10. The rotating cylinder 60 is arranged in cooperation with the rotating block 50. For example, the rotating block 50 is configured to be inserted into the rotating cylinder 60 after the first bolt 31 moves outward, and the rotating cylinder 60 is used to drive the connecting rod 41 to rotate.

[0073] In this embodiment, the first bolt 31 and the connecting rod 41 are drivingly connected through the threaded hole, the rotating block 50 and the rotating cylinder 60. Specifically: when the first bolt 31 rotates, the rotating block 50 rotates following the first bolt 31, thereby driving the rotating cylinder 60 to rotate. The rotation drives the connecting rod 41 to rotate, so that the stopper 42 rotates to fix or release the access panel 20. The first threaded section is threadedly connected to the threaded hole, and by rotating, the rotating block 50 drives the rotating cylinder 60 to rotate. By arranging the second section to move in the threaded hole, it can move quickly during the outward movement of the first bolt 31 to quickly cooperate with the rotating cylinder 60 and the rotating block 50.

[0074] In some embodiments of the present invention, the rotating block 50 is a nut, and the nut is threadedly connected to the second section. The inner circumferential surface of the rotating cylinder 60 is arranged in cooperation with the outer circumferential surface of the nut, so that the rotating cylinder 60 and the nut rotate synchronously. Threaded connection has a simple structure.

[0075] In some embodiments of the present invention, such as Figure 1 , Figure 4 , Figure 5 and Figure 8 shown, the rotating cylinder 60 is in gear engagement with the connecting rod 41. In this embodiment, the rotation drives the connecting rod 41 to rotate by means of gear transmission. Gear transmission has the characteristics of compact structure, high efficiency, long service life, etc. It can save the space inside the indoor unit and reduce the production cost.

[0076] In some embodiments of the present invention, the first fixing device 30 further includes a connecting block 80. The connecting rod 41 and the connecting block 80 are fixedly connected, and the connecting block 80 is in gear engagement with the rotating cylinder 60.

[0077] In some embodiments of the present invention, the connecting rod 41 is threadedly connected to the housing 10.

[0078] In this embodiment, when the air conditioner operates, vibrations will be generated, which will cause the connecting rod 41 to shake, and may affect the fixing of the inspection plate 20 by the stop block 42. Threadedly connecting the connecting rod 41 and the housing 10 can prevent the connecting rod 41 from shaking, so that the fixing of the inspection plate 20 by the stop block 42 is more firm, prevent the inspection plate 20 from falling, and reduce the probability of safety hazards. And when pressing, the blocking member can be moved backward to further improve the pressing effect.

[0079] In some embodiments of the present invention, the first clamping block 32 is configured to contact the lower edge of the first clamping block 32 when the first clamping block 32 moves outward with the first bolt 31 and the inspection plate 20 rotates outward around the lower edge of the inspection opening by a first preset angle.

[0080] After the second fixing device and the blocking member are loosened, the first clamping block 32 remains in a vertical state and does not rotate upward. There is no connection between the inspection plate 20 and the housing 10, and the upper end of the inspection plate 20 is prone to flip outward, posing a risk of the inspection plate 20 falling. In this embodiment, after the blocking member is loosened, the first clamping block 32 is withdrawn a preset distance in the direction of the outside of the inspection plate 20 following the first bolt 31. After the upper end of the inspection plate 20 flips outward by the first preset angle and touches the first clamping block 32, the first clamping block 32 prevents the inspection plate 20 from continuing to flip, so as to prevent the inspection plate 20 from falling when there is no connection between the inspection plate 20 and the housing 10, thereby reducing safety hazards.

[0081] In some embodiments of the present invention, such as Figure 12As shown, a rotating hole 321 and a fixing hole 322 below the rotating hole 321 are provided on the first clamping block 32, and the rotating hole 321 communicates with the fixing hole 322. The rotating hole 321 is matched with the bolt column 313 of the first bolt 31, and the rotating hole 321 allows the pressing block 311 of the first bolt 31 to press the first clamping block 32. The fixing hole 322 is matched with the pressing block 311, so that the first clamping block 32 and the first bolt 31 rotate synchronously.

[0082] In this embodiment, when fixing the maintenance panel 20, in order to fix the maintenance panel 20 with the first clamping block 32, the rotating hole 321 is used to cooperate with the bolt column 313, and the pressing block 311 at the outer end of the first bolt 31 presses the first clamping block 32, so that the first clamping block 32 presses the maintenance panel 20 to fix the maintenance panel 20. When disassembling and installing the maintenance panel 20, the first clamping block 32 is at the position of the maintenance opening, which hinders the disassembly and installation of the maintenance panel 20. The bolt column 313 of the first bolt 31 can be inserted into the fixing hole 322, and the first clamping block 32 is moved so that the fixing hole 322 is sleeved on the pressing block 311. By using the cooperation between the fixing hole 322 and the pressing block 311, the first clamping block 32 rotates with the first bolt 31, changing the position of the first clamping block 32, thereby making the disassembly and installation process of the maintenance panel 20 more convenient.

[0083] In some embodiments of the present invention, as Figure 13 shown, the first bolt 31 further includes a hand-held rotating piece 312, and the hand-held rotating piece 312 is arranged on the outside of the pressing block 311, and the hand-held rotating piece 312 is perpendicular to the pressing block 311.

[0084] In this embodiment, when rotating the first bolt 31, the first bolt 31 can be rotated manually without using tools, which is more convenient when disassembling and installing the maintenance panel 20, and improves the disassembly and installation efficiency of the maintenance panel 20.

[0085] In some embodiments of the present invention, as Figures 9 to 11 shown, the indoor unit of the air conditioner further includes a second fixing device, and the second fixing device includes a second bolt and a second clamping block 72. The second bolt is installed on the housing 10. The second clamping block 72 is rotatably arranged on the second bolt, and the second clamping block 72 is arranged on the outside of the housing 10 to press the maintenance panel 20 when the second bolt is tightened.

[0086] In this embodiment, when installing the maintenance panel 20, after rotating the second clamping block 72 to a position where it can block the movement of the maintenance panel 20, by tightening the second bolt, the second clamping block 72 presses the maintenance panel 20, thereby fixing the maintenance panel 20. When disassembling the maintenance panel 20, loosen the second bolt and rotate the second clamping block 72 to a position where it does not contact the maintenance panel 20. It is not necessary to remove all the bolts to install and disassemble the maintenance panel 20, making the installation and disassembly process of the maintenance panel 20 more convenient and improving the disassembly and installation efficiency of the maintenance panel 20.

[0087] In some embodiments of the present invention, as Figures 9 to 11 shown, there are 4 second fixing devices arranged around the maintenance panel 20, preferably at two vertical edges of the maintenance panel 20.

[0088] In some embodiments of the present invention, as Figure 1 , Figure 4 , Figure 5 and Figure 8 shown, the housing 10 includes a first housing 11 and a second housing 12. The first bolt 31 is installed on the first housing 11, and the outer surface of the first housing 11 and the outer surface of the maintenance panel 20 are in the same plane. The second housing 12 is arranged inside the rear wall 22, and the second housing 12 clamps the rear wall 22 with the stopper 42.

[0089] In some embodiments of the present invention, the second fixing device can also be set to the structure of the first fixing device 30. The maintenance panel 20 is fixed by a double fixing method, further enhancing the fixing effect of the maintenance panel 20, preventing the maintenance panel 20 from falling, and reducing the occurrence of potential safety hazards.

[0090] In this embodiment, the inside of the maintenance panel 20 contacts the second housing 12, and the second housing 12 prevents the maintenance panel 20 from flipping inward. When fixing the maintenance panel 20, the first clamping block 32 presses the maintenance panel 20 towards the inside of the maintenance panel 20, and the second housing 12 on the inside contacts the rear wall 22 of the maintenance panel 20. The maintenance panel 20 is between the first clamping block 32 and the maintenance panel 20, thereby fixing the maintenance panel 20.

[0091] In some embodiments of the present invention, as Figures 9 to 11 shown, a handle 90 is provided on the outside of the maintenance panel 20.

[0092] Since the outer surface of the first housing 11 and the outer surface of the maintenance panel 20 are in the same plane, when disassembling the maintenance panel 20, the maintenance personnel need to remove the maintenance panel 20 from the edge of the maintenance panel 20, and the gap between the edge of the maintenance panel 20 and the housing 10 is small, making it not easy to take out. Moreover, when installing the maintenance panel 20, when the maintenance personnel place the maintenance panel 20 at the maintenance opening by holding the edge of the maintenance panel 20, it is easy to pinch the hand, causing a safety accident. In this embodiment, the maintenance personnel can take out or place the maintenance panel 20 through the handle 90, which is convenient to operate and reduces the occurrence of safety accidents.

[0093] In some embodiments of the present invention, the indoor unit of the air conditioner includes a connecting member. One end of the connecting member is connected to the inner surface of the housing 10, and the other end is connected to the inner surface of the maintenance panel 20.

[0094] In this embodiment, after removing the first fixing device 30 and the second fixing device, the maintenance plate 20 and the housing 10 are connected by a connecting member to prevent the maintenance plate 20 from falling, reduce accidents, and reduce potential safety hazards. Moreover, the maintenance plate 20 can be placed above the housing 10. The connecting member can be a connecting rope.

[0095] The embodiment of the present invention also provides a disassembly and assembly method for an indoor unit of an air conditioner as described in any of the above embodiments, as Figure 14 shown, including the following steps:

[0096] Step S100, rotate the first bolt 31 in the first direction.

[0097] Step S200, after the first bolt 31 moves outward by a second preset distance from the maintenance plate 20, pull the first bolt 31 outward from the maintenance plate 20 so that the first bolt 31 moves outward by a first preset distance.

[0098] Step S300, rotate the first bolt 31 in the second direction or the first direction, where the first direction is opposite to the second direction.

[0099] Step S400, rotate the first clamping block 32 by a second preset angle to remove the maintenance plate 20.

[0100] In this embodiment, when the first bolt 31 is rotated in the first direction and the first bolt 31 moves outward from the maintenance plate 20, when the second section reaches the position of the threaded hole, the first bolt 31 is pulled outward from the maintenance plate 20. When the rotating block 50 moves into the rotating cylinder 60, the first bolt 31 is rotated in the second direction or the first direction. The nut on the first bolt 31 drives the rotating cylinder 60 to rotate. The rotating cylinder 60 drives the connecting rod 41 to rotate in the opposite direction of the rotation of the rotating cylinder 60, so that the stopper 42 no longer presses the maintenance plate 20. Rotate the first clamping block 32 by a second preset angle. There is no connection between the maintenance plate 20 and the housing 10, and the maintenance plate 20 can be removed. Through a linkage method, only by rotating and moving the first bolt 31 can the connection between the maintenance plate 20 and the housing 10 be disassembled, and the operation method is simple, which is convenient for disassembling the maintenance plate 20.

[0101] Specifically, the first clamping block 32 can determine whether to rotate by a second preset angle according to the first preset distance. If the first preset distance is relatively small, the first clamping block 32 needs to be rotated. If it is relatively large, it can be rotated or not.

[0102] In some embodiments of the present invention, as Figure 15 shown, the disassembly and assembly method further includes:

[0103] Step S500, place the maintenance plate 20 at the maintenance opening, and rotate the first clamping block 32 by a second preset angle.

[0104] Step S600, rotate the first bolt 31.

[0105] Step S700, push the first bolt 31 towards the inner side of the inspection plate 20.

[0106] Step S800, after the first bolt 31 moves towards the inner side of the inspection plate 20, rotate the first bolt 31 in the second direction until the first bolt 31 is tightened.

[0107] In this embodiment, when installing the inspection plate 20, the inspection plate 20 is placed at the inspection opening. Rotate the first clamping block 32 to adjust the position of the first clamping block 32 so that the first clamping block 32 can press the inspection plate 20 tightly. Rotate the first bolt 31, and the nut on the first bolt 31 drives the rotating cylinder 60 to rotate. The rotating cylinder 60 drives the connecting rod 41 to rotate in the opposite direction of the rotation of the rotating cylinder 60, and the stopper 42 rotates to a position where it is misaligned with the through hole, so that the stopper 42 can press the inspection plate 20 against the second housing 12. Push the first bolt 31 towards the inner side of the inspection plate 20. After the first bolt 31 moves towards the inner side of the inspection plate 20 by a third preset distance. Rotate the first bolt 31 in the second direction to thread the first bolt 31 with the housing 10 to fix the first bolt 31, and the installation of the inspection plate 20 is completed. Through the linkage method, only by rotating and moving the first bolt 31 can the connection between the inspection plate 20 and the housing 10 be installed, and the operation method is simple, which is convenient for the installation of the inspection plate 20.

[0108] In some preferred embodiments of the present invention, the second preset angle is 90°, and the rotation angle of the stopper 42 can also be 90°. Rotate the first clamping block 32 by the second preset angle, or do not rotate it. Specifically, it can be determined according to the first preset distance. If the first preset distance is relatively small, the first clamping block 32 needs to be rotated. If it is relatively large, it can be rotated or not rotated.

[0109] In some preferred embodiments of the present invention, when disassembling the inspection plate 20, first remove the second fixing device. Specifically, turn the handheld rotating piece to loosen the second bolt, and rotate the second clamping block 72 to a position where it does not contact the inspection plate 20.

[0110] Then, remove the first fixing device 30. Specifically, rotate the first bolt 31 in the first direction, and the first bolt 31 moves outward of the inspection plate 20. When the second section reaches the position of the threaded hole, if the nut aligns with the rotating cylinder 60, pull the first bolt 31 outward of the inspection plate 20 to insert the nut into the rotating cylinder 60. If the nut does not align with the rotating cylinder 60, rotate the first bolt 31. After the nut aligns with the rotating cylinder 60, pull the first bolt 31 outward of the inspection plate 20 to insert the nut into the rotating cylinder 60. The nut on the first bolt 31 drives the rotating cylinder 60 to rotate. When the nut moves into the rotating cylinder 60, rotate the first bolt 31 in the second direction or the first direction. The rotation of the rotating cylinder 60 drives the connecting block 80 to rotate in the opposite direction of the rotation of the rotating cylinder 60, thereby driving the connecting rod 41 to rotate and the stopper 42 to rotate, so that the stopper 42 no longer presses the inspection plate 20. Rotate the first clamping block 32 by a second preset angle. At this time, there is no connection relationship between the inspection plate 20 and the housing 10, and the inspection plate 20 can be removed.

[0111] Finally, use the handle 90 to remove the inspection plate 20 to complete the disassembly of the inspection plate 20.

[0112] When installing the inspection plate 20, first fix the inspection plate 20 through the first fixing device 30. Specifically, place the inspection plate 20 at the inspection opening through the handle 90, rotate the first clamping block 32, adjust the position of the first clamping block 32 so that the first clamping block 32 can press the inspection plate 20. Rotate the first bolt 31, and the nut on the first bolt 31 drives the rotating cylinder 60 to rotate. The rotation of the rotating cylinder 60 drives the connecting block 80 to rotate in the opposite direction of the rotation of the rotating cylinder 60, thereby driving the connecting rod 41 to rotate and the stopper 42 to rotate. The stopper 42 rotates to a position where it is offset from the through hole so that the stopper 42 can press the inspection plate 20 against the second housing 12. Push the first bolt 31 inward of the inspection plate 20. After the first bolt 31 moves inward of the inspection plate 20 by a third preset distance. Rotate the first bolt 31 in the second direction to thread the first bolt 31 with the housing 10 to fix the first bolt 31. After the first bolt 31 is tightened, the first clamping block 32 is also fixed to press the inspection plate 20.

[0113] Then, install the second fixing device. Specifically, after rotating the second clamping block 72 to a position where it can block the movement of the inspection plate 20, tighten the second bolt to make the second clamping block 72 press the inspection plate 20, thereby completing the installation of the inspection plate 20.

[0114] 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 from 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. An indoor unit of an air conditioner, characterized in that, It includes a housing, an inspection plate, and a first fixing device. An inspection opening is provided on one side of the housing; the inspection plate is arranged at the inspection opening to block the inspection opening; The inspection plate has a relief cavity and a rear wall for defining the relief cavity; The first fixing device includes: A first bolt, which is installed on the housing; A first clamping block, which is rotatably arranged at the outer end of the first bolt to press the inspection plate when the first bolt is tightened; A stopper, which includes a connecting rod and a stopper block. The outer end of the connecting rod is connected to the stopper block; the connecting rod is rotatably penetrated through the housing so that the stopper block rotates to a position where the rear wall is pressed against the housing; the inner end of the connecting rod is drivingly connected to the inner end of the first bolt so that the connecting rod rotates under the drive of the first bolt after the first bolt moves outward by a first preset distance.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The bolt column of the first bolt includes: A first threaded section, which is connected to the threaded hole on the housing; A second section, which is arranged inside the first threaded section and is configured to be horizontally movable in the threaded hole; The first fixing device further includes: A rotating block, which is arranged at the inner end of the second section; A rotating cylinder, which is rotatably installed on the housing. The rotating block is configured to be inserted into the rotating cylinder after the first bolt moves outward, and the rotating cylinder is used to drive the connecting rod to rotate.

3. The indoor unit of the air conditioner according to claim 2, characterized in that, The rotating cylinder is in gear meshing with the connecting rod; The rotating block is a nut, and the nut is threadedly connected to the second section; A through hole allowing the stopper block to pass through is provided on the rear wall.

4. The indoor unit of the air conditioner according to claim 1, characterized in that, The connecting rod is threadedly connected to the housing.

5. The indoor unit of the air conditioner according to claim 1, characterized in that, The first clamping block is configured to contact the lower end of the first clamping block when the first clamping block moves outward with the first bolt and the angle at which the inspection plate rotates outward around the lower edge of the inspection opening is the first preset angle.

6. The indoor unit of the air conditioner according to claim 1, characterized in that, A rotating hole and a fixing hole located below the rotating hole are provided on the first clamping block, and the rotating hole and the fixing hole communicate with each other; The rotating hole cooperates with the bolt column of the first bolt, and the rotating hole allows the pressing block of the first bolt to press the first clamping block; The fixing hole cooperates with the pressing block so that the first clamping block and the first bolt rotate synchronously.

7. The indoor unit of the air conditioner according to claim 1, characterized in that, It further includes a second fixing device, which includes a second bolt and a second clamping block; the second bolt is installed on the housing; the second clamping block is rotatably arranged on the second bolt, and the second clamping block is arranged on the outer side of the housing to press the vertical edge of the inspection plate when the second bolt is tightened.

8. The indoor unit of the air conditioner according to claim 1, characterized in that, The housing includes a first housing and a second housing. The first bolt is installed on the first housing, and the outer surface of the first housing and the outer surface of the inspection plate are in the same plane; the second housing is arranged inside the rear wall, and the second housing and the stopper block clamp the rear wall; The upper side edge of the inspection plate has an inward flanging, and the flanging includes the rear wall; or at least the upper part of the inspection plate is a hollow structure to form the relief cavity.

9. A disassembly and assembly method for the indoor unit of the air conditioner according to any one of claims 1 to 8, characterized in that, It includes: Rotating the first bolt in the first direction; After the first bolt moves outward by a second preset distance with respect to the inspection plate, pull the first bolt outward with respect to the inspection plate so that the first bolt moves outward by the first preset distance; Rotate the first bolt in the second direction or the first direction, where the first direction is opposite to the second direction; The first clamping block rotates by a second preset angle, and the inspection plate is removed.

10. The disassembly and assembly method according to claim 9, characterized in that, Further included: Place the inspection plate at the inspection opening, and the first clamping block rotates by a second preset angle; Rotate the first bolt; Push the first bolt toward the inner side of the inspection plate; After the first bolt moves toward the inner side of the inspection plate, rotate the first bolt in the second direction until the first bolt is tightened.

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