A quick-release device for cross-flow fan blades and its air conditioner

Abstract

The present invention discloses a crossflow fan blade quick disassembly and assembly device and an air conditioner, wherein the device comprises a cover plate and a crossflow fan blade arranged on the cover plate; the cover plate is movably mounted on the side of the air conditioner indoor unit panel, and the side of the air conditioner indoor unit panel is provided with a connecting port that cooperates with the cover plate and is connected to the inside of the air conditioner indoor unit, and the connecting port can allow the crossflow fan blade to pass through; the other end of the crossflow fan blade is connected to the motor shaft of the air conditioner indoor unit through a movable self-locking structure; the movable self-locking structure comprises a shell, a chuck structure arranged on the shell, and a driving member for causing the chuck structure to clamp or release the motor shaft of the air conditioner indoor unit or the main shaft of the crossflow fan blade. The crossflow fan blade quick disassembly and assembly device of the present invention connects the crossflow fan blade to the air conditioner through the movable self-locking structure, and the user can disassemble and assemble it by himself, and the disassembly and assembly process is simple.

Description

Technical Field

[0001] The invention relates to air conditioning processing equipment, in particular to a crossflow fan blade quick disassembly and assembly device and an air conditioner. Background Art

[0002] In the traditional air conditioning industry, the assembly order of the air conditioner indoor unit is usually to install the crossflow fan blades first, tighten the connecting screws, and then install the evaporator, panel body, panel and other components. The general order of disassembling the crossflow fan blades is exactly the opposite of the installation, and the disassembly is very cumbersome. The crossflow fan blade is a component that is very easy to accumulate dirt. The cumbersome disassembly process brings troubles to users when cleaning the crossflow fan blades.

[0003] To this end, the utility model patent with authorization announcement number CN204458475U discloses "a connection structure and an air conditioner", the connection structure includes a motor, the motor includes a main body and a rotating shaft, the first end of the rotating shaft is connected to the main body, the second end of the rotating shaft extends out of the main body, and the second end of the rotating shaft is provided with an external thread; a fan, the fan includes a connecting part, the connecting part is provided with a connecting hole, the inner wall of the connecting hole is provided with an internal thread, the internal thread is connected to the second end of the rotating shaft

[0004] The external threads cooperate to form a self-locking structure, so that the fan is connected to the motor. Through this technical solution, the motor and the fan are connected by thread self-locking, which has the advantages of simple structure, convenient processing, fast assembly, good anti-loosening performance, and can be disassembled and reused multiple times without reducing the anti-loosening performance.

[0005] However, although this method of achieving self-locking between the motor shaft and the connection part of the fan through internal and external threaded connection can facilitate the disassembly and assembly of the fan, it is necessary to ensure that the motor shaft is fixed during the disassembly and assembly process to achieve disassembly or installation of the fan, and the operation process is more complicated. Summary of the invention

[0006] The present invention aims to overcome the deficiencies of the prior art and provide a crossflow fan blade quick disassembly and assembly device, wherein the crossflow fan blade quick disassembly and assembly device connects the crossflow fan blade's movable self-locking structure to the air conditioner, so that the user can disassemble and assemble the crossflow fan blade by himself, and the disassembly and assembly process is simple.

[0007] The second object of the present invention is to provide an air conditioner using the above-mentioned crossflow fan blade quick disassembly and assembly device.

[0008] The technical solution of the present invention to solve the above technical problems is:

[0009] A crossflow fan blade quick disassembly and assembly device comprises a cover plate and a crossflow fan blade arranged on the cover plate, wherein:

[0010] The cover plate is movably mounted on the side of the air conditioner inner unit panel, and the side of the air conditioner inner unit panel is provided with a communication port matched with the cover plate, the communication port is communicated with the inside of the air conditioner inner unit, and the cross flow fan blade can pass through the communication port;

[0011] One end of the crossflow fan blade is rotatably connected to the cover plate, and the other end is connected to the motor shaft of the air conditioner indoor unit through a movable self-locking structure;

[0012] In which, the movable self-locking structure includes a shell, a chuck structure arranged on the shell, and a driving member for causing the chuck structure to clamp or loosen the motor shaft of the air-conditioning indoor unit or the main shaft of the cross-flow fan blade. When the cross-flow fan blade needs to be removed from the air-conditioning indoor unit, the driving member causes the chuck structure to loosen the motor shaft of the air-conditioning indoor unit or the main shaft of the cross-flow fan blade; when the cross-flow fan blade needs to be installed on the air-conditioning indoor unit, the driving member causes the chuck structure to clamp the motor shaft of the air-conditioning indoor unit or the main shaft of the cross-flow fan blade.

[0013] Preferably, the shell is installed at the axial center position of the cross-flow fan blade; when the cross-flow fan blade needs to be removed from the air-conditioning indoor unit, the driving member prompts the chuck structure to loosen the motor shaft of the air-conditioning indoor unit; when the cross-flow fan blade needs to be installed on the air-conditioning indoor unit, the driving member prompts the chuck structure to clamp the motor shaft of the air-conditioning indoor unit.

[0014] Preferably, the chuck structure includes a plurality of claws arranged in the shell, the plurality of claws are evenly arranged along the circumferential direction of the shell, the inner side of each claw is conical, and the inner side surfaces between the plurality of claws form a clamping portion that gradually contracts from the outside to the inside, wherein the inner diameter of the clamping portion is smaller than the diameter of the motor shaft of the indoor unit of the air conditioner, and the outer diameter is larger than the diameter of the motor shaft of the indoor unit of the air conditioner; each claw is rotatably connected to the shell through a short shaft, and a spring is further arranged between each claw and the shell, one end of the spring acts inside the shell, and the other end acts on a portion of the corresponding claw below the short shaft, and the elastic force of the spring causes the inner part of the clamping portion of the chuck knot to contract and the outer part to open.

[0015] Preferably, the middle portion of the side surface of the cover plate located on the outside protrudes outward to form a handle structure for disassembling the crossflow fan blades.

[0016] Preferably, a bearing is installed in the cover plate, and the bearing is interference fit with the main shaft of the crossflow fan blade.

[0017] Preferably, the cover plate is connected to the air conditioner inner unit panel via a screw connection structure.

[0018] Preferably, the air conditioner indoor unit is provided with a decorative panel at a position corresponding to the cover plate, and the decorative panel is connected to the air conditioner indoor unit panel via a snap-fit ​​connection.

[0019] Preferably, a guide cavity cooperating with the cross-flow blade is formed at a position corresponding to the cross-flow blade in the indoor unit of the air conditioner.

[0020] Preferably, the movable self-locking structure is an electric chuck, which is mounted on the motor shaft of the air-conditioning indoor unit. When the cross-flow fan blade needs to be removed, the electric chuck is controlled by the air-conditioning control module to loosen the main shaft of the cross-flow fan blade; when the cross-flow fan blade needs to be installed on the air-conditioning indoor unit, the electric chuck is controlled by the air-conditioning control module to clamp the main shaft of the cross-flow fan blade.

[0021] An air conditioner comprises the crossflow fan blade quick disassembly and assembly device.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The crossflow fan blade quick disassembly and assembly device of the present invention can realize the disassembly of the crossflow fan blade by designing a pull-out disassembly structure of the crossflow fan blade without removing the evaporator, panel body and other components. At the same time, a movable self-locking structure is designed to ensure the firmness of the connection between the crossflow fan blade and the motor shaft of the air conditioner indoor unit and the convenience of disassembly.

[0024] 2. The crossflow blade quick disassembly and assembly device of the present invention is provided with a movable self-locking structure, so that the crossflow blade does not need to be installed and disassembled with screws to fix the motor shaft of the air conditioner indoor unit with the crossflow blade, which simplifies the disassembly and installation process. The crossflow blade is pulled out from the side, so that the panel body, evaporator and other components do not need to be removed to disassemble the crossflow blade, which greatly simplifies the disassembly process. The user can also disassemble it easily, which is convenient for cleaning the crossflow blade and the air duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the crossflow fan blade quick disassembly and assembly device of the present invention.

[0026] Figure 2 It is the left view.

[0027] Figure 3 This is a schematic diagram of the structure when no cover is installed in the air conditioner inner unit panel.

[0028] Figure 4 This is a schematic diagram of the structure when the cover is installed in the air conditioner inner unit panel.

[0029] Figure 5-Figure 6 is a schematic diagram of the structure of the cover plate, where: Figure 5 is the front view, Figure 6 This is the rear view.

[0030] Figure 7 It is a three-dimensional structural schematic diagram of the active self-locking structure.

[0031] Figure 8-Figure 9 It is a schematic diagram of the action when the active self-locking structure cooperates with the motor shaft, wherein: Figure 8 Main view (section view), Fig. 9 This is a top view. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0033] Example 1

[0034] See also Figure 1-Figure 9 The crossflow fan blade quick disassembly and assembly device of the present invention comprises a cover plate 1 and a crossflow fan blade 2 arranged on the cover plate 1, wherein:

[0035] The cover plate 1 is movably mounted on the side of the air conditioner indoor unit panel through a screw connection structure, and a bearing 4 is installed in the cover plate 1, and the bearing 4 is interference fit with the main shaft of the crossflow fan blade 2; the side of the air conditioner indoor unit panel is provided with a communication port that matches the cover plate 1, and the communication port is connected to the inside of the air conditioner indoor unit, and the crossflow fan blade 2 can pass through the communication port;

[0036] One end of the crossflow fan blade 2 is rotatably connected to the cover plate 1, and the other end is connected to the motor shaft 9 of the indoor unit of the air conditioner through a movable self-locking structure;

[0037] The movable self-locking structure includes a shell 7, a chuck structure arranged on the shell 7, and a driving member for causing the chuck structure to clamp or loosen the motor shaft 9 of the air-conditioning indoor unit or the main shaft of the cross-flow fan blade 2; when the cross-flow fan blade 2 needs to be removed from the air-conditioning indoor unit, the driving member causes the chuck structure to loosen the motor shaft 9 of the air-conditioning indoor unit or the main shaft of the cross-flow fan blade 2; when the cross-flow fan blade 2 needs to be installed on the air-conditioning indoor unit, the driving member causes the chuck structure to clamp the motor shaft 9 of the air-conditioning indoor unit or the main shaft of the cross-flow fan blade 2.

[0038] In this embodiment, the shell 7 is installed at the axial position of the cross-flow fan blade 2; when the cross-flow fan blade 2 needs to be removed from the air-conditioning indoor unit, the driving member prompts the chuck structure to loosen the motor shaft 9 of the air-conditioning indoor unit; when the cross-flow fan blade 2 needs to be installed on the air-conditioning indoor unit, the driving member prompts the chuck structure to clamp the motor shaft 9 of the air-conditioning indoor unit.

[0039] See also Figure 1-Figure 9The chuck structure includes a plurality of claws 5 arranged in the shell 7, and the plurality of claws 5 are evenly arranged along the circumferential direction of the shell 7. The inner side of each claw 5 is conical, and the inner side surface between the plurality of claws 5 forms a clamping portion that gradually closes from the outside to the inside, wherein the inner diameter of the clamping portion is smaller than the diameter of the motor shaft 9 of the indoor unit of the air conditioner, and the outer diameter is larger than the diameter of the motor shaft 9 of the indoor unit of the air conditioner; each claw 5 is rotatably connected to the shell 7 through a short shaft 6, and a spring 8 is further arranged between each claw 5 and the shell 7, one end of the spring 8 acts in the shell 7, and the other end acts on the corresponding claw 5 at a position below the short shaft 6, and the elastic force of the spring 8 causes the inner part of the clamping portion of the chuck knot to close and the outer part to open.

[0040] By setting the above structure, when the motor shaft 9 is not inserted, the bottom of the claw 5 is retracted toward the center of the circle under the elastic force of the spring 8. At this time, the spring 8 is in an extended state, and the three claws 5 work together to present a cone with a large outside and a small inside, which is convenient for inserting the motor shaft 9. When the motor shaft 9 is slowly inserted, the motor shaft 9 forces the upper part of the claw 5 to retract toward the center, and the bottom is away from the center. At this time, the spring 8 is in a compressed state until the motor shaft 9 is fully inserted and hits the housing 7, and the claw 5 and the motor shaft 9 complete an interference fit, thereby achieving the fixation of the crossflow fan blade 2 and the motor shaft 9 of the air conditioner indoor unit. In the whole process, the locking of the claw 5 and the motor shaft 9 is slowly strengthened as the depth of the motor shaft 9 is deepened, and there is not much resistance, until the motor shaft 9 hits the housing 7, the insertion self-locking is achieved, and the locking of the motor shaft 9 will be loosened under the action of the spring 8 when it is pulled out. Since the cover plate 1 is fixed to the angle frame 10 and the bottom shell 11, the insertion depth of the motor shaft 9 will not be reduced, so the motor shaft 9 can be firmly locked. When the crossflow fan blade 2 needs to be removed, it is only necessary to loosen the screws on the cover plate 1, and then the cover plate 1 connected to the crossflow fan blade 2 is pulled outward, so that the chuck structure is separated from the motor shaft 9, and the crossflow fan blade 2 can be taken out. Since the chuck structure lacks the constraint of the motor shaft 9 at this time, the three claws 5 of the chuck structure 9 are restored to the posture of small inside and large outside under the action of the spring 8.

[0041] See also Figure 1-Figure 9 The middle part of the side surface of the cover plate 1 located outside protrudes outward to form a handle structure for removing the crossflow fan blade 2. By providing the handle structure, it is convenient for the user to pull out the cover plate 1 together with the crossflow fan blade 2 from the indoor unit of the air conditioner.

[0042] See also Figure 1-Figure 9 The air conditioner indoor unit is provided with a decorative panel at a position corresponding to the cover plate 1; the decorative panel is connected to the air conditioner indoor unit panel by a snap-fit ​​connection. When removing the crossflow fan blades 2, the decorative panel needs to be removed first before the cover plate 1 and the crossflow fan blades 2 can be pulled out of the air conditioner indoor unit.

[0043] See also Figure 1-Figure 9 A guide cavity cooperating with the crossflow fan blade 2 is formed at a position corresponding to the crossflow fan blade 2 in the air conditioner indoor unit. By setting the guide cavity, the crossflow fan blade 2 can be guided when it is installed, so that the clamping part of the chuck structure in the crossflow fan blade 2 can cooperate with the motor shaft 9, thereby improving the assembly accuracy and assembly efficiency.

[0044] Example 2

[0045] The difference between this embodiment and embodiment 1 is that:

[0046] The movable self-locking structure of this embodiment is an electric chuck, which is installed on the motor shaft 9 of the air conditioner indoor unit. When the crossflow fan blade 2 needs to be disassembled, the air conditioner control module controls the electric chuck to loosen the main shaft of the crossflow fan blade 2; when the crossflow fan blade 2 needs to be installed on the air conditioner indoor unit, the air conditioner control module controls the electric chuck to clamp the main shaft of the crossflow fan blade 2. By providing the electric chuck, the firmness of the assembly of the crossflow fan blade 2 and the motor shaft 9 of the air conditioner indoor unit can be further improved, thereby improving the assembly effect.

[0047] Example 3

[0048] The air conditioner of the present invention comprises the crossflow fan blade 2 quick disassembly and assembly device.

[0049] The above is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited to the above content. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A crossflow fan blade quick disassembly and assembly device, comprising a cover plate and a crossflow fan blade arranged on the cover plate, characterized in that: The cover plate is movably mounted on the side of the air conditioner inner unit panel, and the side of the air conditioner inner unit panel is provided with a communication port matched with the cover plate, the communication port is communicated with the inside of the air conditioner inner unit, and the cross flow fan blade can pass through the communication port; One end of the crossflow fan blade is rotatably connected to the cover plate, and the other end is connected to the motor of the air conditioner indoor unit through a movable self-locking structure. Shaft connection; The movable self-locking structure includes a housing, a chuck structure arranged on the housing, and a driving member for causing the chuck structure to clamp or loosen the motor shaft of the air conditioner indoor unit or the main shaft of the crossflow fan blade. When the crossflow fan blade needs to be removed from the air conditioner indoor unit, the driving member causes the chuck structure to loosen the motor shaft of the air conditioner indoor unit or the main shaft of the crossflow fan blade; when the crossflow fan blade needs to be installed on the air conditioner indoor unit, the driving member causes the chuck structure to clamp the motor shaft of the air conditioner indoor unit or the main shaft of the crossflow fan blade. The housing is mounted at the axis of the crossflow blade; when the crossflow blade needs to be removed from the air conditioner indoor unit, the driving member causes the chuck structure to loosen the motor shaft of the air conditioner indoor unit; when the crossflow blade needs to be installed on the air conditioner indoor unit, the driving member causes the chuck structure to clamp the motor shaft of the air conditioner indoor unit; The chuck structure includes a plurality of claws arranged in the shell, the plurality of claws are evenly arranged along the circumferential direction of the shell, the inner side of each claw is conical, and the inner side surfaces between the plurality of claws form a clamping portion that gradually contracts from the outside to the inside, wherein the inner diameter of the clamping portion is smaller than the diameter of the motor shaft of the indoor unit of the air conditioner, and the outer diameter is larger than the diameter of the motor shaft of the indoor unit of the air conditioner; each claw is rotatably connected to the shell through a short shaft, and a spring is further arranged between each claw and the shell, one end of the spring acts inside the shell, and the other end acts on a portion of the corresponding claw below the short shaft, and the elastic force of the spring causes the inner part of the clamping portion of the chuck knot to contract and the outer part to open.

2. The crossflow fan blade quick disassembly and assembly device according to claim 1, characterized in that: The middle part of the side surface of the cover plate located on the outside protrudes outward to form a handle structure for disassembling the crossflow fan blade.

3. The crossflow fan blade quick disassembly and assembly device according to claim 1, characterized in that: A bearing is installed in the cover plate, and the bearing is interference fit with the main shaft of the crossflow fan blade.

4. The crossflow fan blade quick disassembly and assembly device according to claim 1, characterized in that: The cover plate is connected to the air conditioner inner unit panel via a screw connection structure.

5. The crossflow fan blade quick disassembly and assembly device according to claim 1, characterized in that: The air conditioner indoor unit is provided with a decorative panel at a position corresponding to the cover plate; the decorative panel is connected to the air conditioner indoor unit panel via a snap buckle.

6. The crossflow fan blade quick disassembly and assembly device according to claim 1, characterized in that: A guide cavity matched with the cross-flow blade is formed at a position corresponding to the cross-flow blade in the indoor unit of the air conditioner.

7. The crossflow fan blade quick disassembly and assembly device according to claim 1, characterized in that: The movable self-locking structure is an electric chuck, which is installed on the motor shaft of the air conditioner indoor unit. When the cross-flow fan blade needs to be removed, the electric chuck is controlled by the air conditioning control module to loosen the main shaft of the cross-flow fan blade; when the cross-flow fan blade needs to be installed on the air conditioner indoor unit, the electric chuck is controlled by the air conditioning control module to clamp the main shaft of the cross-flow fan blade.

8. An air conditioner, characterized in that: It comprises the crossflow fan blade quick disassembly and assembly device as described in any one of claims 1-7.

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