An indoor unit for air conditioning, an air conditioner

Abstract

This invention provides an indoor air conditioning unit and an air conditioner. The indoor air conditioning unit includes a bottom shell and a front panel. The front panel has a panel, and an air duct is formed between the bottom shell and the panel. A cross-flow fan blade is provided within the air duct. Each end of the cross-flow fan blade has a fan blade connector. A rotary drive device is provided at a position corresponding to the fan blade connector at the first end of the cross-flow fan blade on the bottom shell. The rotary drive device has a first rotating shaft. A rotating shaft assembly is provided at a position corresponding to the fan blade connector at the second end of the cross-flow fan blade on the bottom shell. The rotating shaft assembly has a second rotating shaft. The fan blade connector is detachably connected to the first rotating shaft and the second rotating shaft, respectively. The disassembly and assembly path of the fan blade connector is within a radial plane of the cross-flow fan blade. According to this invention, the disassembly and assembly path of the fan blade connector is within a radial plane of the cross-flow fan blade, which is the longitudinal section of the cross-flow fan blade. Disassembly and assembly are performed along the radial direction of the cross-flow fan blade, making it convenient to disassemble and clean the cross-flow fan blade within the air duct.

Description

Technical Field

[0001] This invention belongs to the field of air conditioning technology, specifically relating to an indoor air conditioning unit and an air conditioner. Background Technology

[0002] The air duct system of current wall-mounted split air conditioning units mainly consists of a bottom shell, a volute, and cross-flow fan blades. The bottom shell and volute are often combined to form the bottom shell assembly, which serves as the bottom layer of the entire air conditioning unit. The cross-flow fan blades, as the upper layer of the bottom shell assembly, are placed on top of the bottom shell assembly. The entire air duct structure is located at the bottom layer of the air conditioning unit.

[0003] In existing technologies, cross-flow fan blades are typically installed axially, requiring disassembly along their axis. Axially installed cross-flow fan blades are cumbersome to install and remove, increasing cleaning hassles for users. Summary of the Invention

[0004] Therefore, the present invention provides an air conditioner indoor unit that overcomes the shortcomings of the prior art, such as the difficulty in axial disassembly and assembly of the cross-flow fan blades and the inconvenience in cleaning.

[0005] To address the aforementioned problems, this invention provides an indoor air conditioning unit, comprising a base shell and a panel. The panel has a front panel, and an air duct is formed between the base shell and the front panel. A cross-flow fan blade is disposed within the air duct, and each end of the cross-flow fan blade has a fan blade connector. A rotary drive device is disposed at a position corresponding to the fan blade connector at the first end of the cross-flow fan blade on the base shell. The rotary drive device has a first rotating shaft. A rotating shaft assembly is disposed at a position corresponding to the fan blade connector at the second end of the cross-flow fan blade on the base shell. The rotating shaft assembly has a second rotating shaft. The fan blade connector is detachably connected to both the first and second rotating shafts, and the disassembly and assembly path of the fan blade connector lies within a radial plane of the cross-flow fan blade.

[0006] In some embodiments, the protruding end of the first rotating shaft has a first positioning surface on its outer peripheral wall, the protruding end of the second rotating shaft has a second positioning surface on its outer peripheral wall, and the fan blade connector has a mating surface on the side facing the first rotating shaft, with both the first positioning surface and the second positioning surface fitting against the mating surface.

[0007] In some embodiments, the fan blade connector is a connecting block extending outward along the axial direction of the cross-flow fan blade, the connecting block having a through hole, and a threaded connector connecting to the first positioning surface or the second positioning surface via the through hole.

[0008] In some embodiments, the air duct is provided with a rectifier mechanism detachably connected to the panel body on the side facing the panel, the rectifier mechanism including an air outlet frame having a volute tongue.

[0009] In some embodiments, the air outlet frame has a first wall surface with an installation structure for an air guiding and sweeping mechanism.

[0010] In some embodiments, the air outlet frame further has a second wall and a third wall at opposite ends of the first wall, and the second wall and the third wall each have a guide block that is adapted to a guide groove on the bottom shell.

[0011] In some embodiments, the air outlet frame is a hollow structure, and the air outlet frame is provided with reinforcing ribs.

[0012] In some embodiments, the air outlet bracket is provided with a cover plate on the side facing the panel.

[0013] In some embodiments, the indoor unit of the air conditioner further includes a directional mechanism, which is sleeved on the outer circumferential side of the first rotating shaft.

[0014] In some embodiments, the orientation mechanism includes a bracket with a through hole and a slider slidably disposed in the through hole. A limiting boss is provided at one end of the slider near the rotary drive device. The limiting boss is adapted to the limiting step of the bottom shell. The limiting step has a first limiting point and a second limiting point. When the cross-flow fan blade is in the disassembled state, the limiting boss is engaged between the first limiting point and the second limiting point.

[0015] In some embodiments, the orientation mechanism further includes an elastic element connected between the slider and the bracket to allow the slider to switch between a first position and a second position, wherein the first position is the position where the limiting boss contacts the limiting step, and the second position is the position where the limiting boss disengages from the limiting step.

[0016] The present invention also provides an air conditioner, including the above-described indoor air conditioner unit.

[0017] This invention provides an indoor air conditioning unit and an air conditioner. By setting fan blade connectors at both ends of a cross-flow fan blade, fixing a rotary drive device at the position corresponding to the fan blade connector at the first end of the cross-flow fan blade on the bottom shell, and fixing a rotating shaft assembly at the position corresponding to the fan blade connector at the second end of the cross-flow fan blade on the bottom shell, the fan blade connectors at both ends of the cross-flow fan blade are detachably connected to the first rotating shaft of the rotary drive device and the second rotating shaft of the rotating shaft assembly, respectively. The disassembly and assembly path of the fan blade connectors is located in a radial plane of the cross-flow fan blade, which is the convergence plane of all paths perpendicular to the axis centerline of the cross-flow fan blade. Disassembly and assembly are carried out along the radial direction of the cross-flow fan blade, making it convenient to disassemble and clean the cross-flow fan blade in the air duct. Attached Figure Description

[0018] Figure 1 This is an exploded view of the indoor unit and air duct structure according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the installation position of the air outlet bracket of the indoor unit according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the indoor unit and air outlet frame structure according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the external air outlet frame according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the installation of the cross-flow fan blades according to an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the limiting step structure according to an embodiment of the present invention;

[0024] Figure 7 This is a cross-sectional view of the indoor unit along the radial direction of the cross-flow fan blades according to an embodiment of the present invention;

[0025] Figure 8 This is a schematic diagram of the internal structure of the air outlet frame according to an embodiment of the present invention;

[0026] Figure 9 This is a schematic diagram of the rotating shaft assembly structure according to an embodiment of the present invention;

[0027] Figure 10 This is a schematic diagram of the orientation mechanism structure according to an embodiment of the present invention;

[0028] Figure 11 This is a schematic diagram of the connection structure between the cross-flow fan blade and the rotary drive device according to an embodiment of the present invention.

[0029] The reference numerals in the attached figures are as follows:

[0030] 1. Bottom shell; 11. Guide groove; 12. First limiting point; 13. Second limiting point; 2. Cross-flow fan blade; 21. Fan blade connector; 3. Air outlet frame; 31. Guide block; 32. Cover plate; 33. Air guide plate mounting piece; 34. Sweeping blade mounting piece; 35. Reinforcing rib; 4. Rotating shaft assembly; 41. Rotating device; 42. Second rotating shaft; 5. Orientation mechanism; 51. Bracket; 52. Slider; 53. Elastic element; 521. Limiting boss; 6. Panel; 7. Rotation drive device; 71. First rotating shaft; 8. Air guide plate; 9. Panel body. Detailed Implementation

[0031] See also Figures 1 to 11As shown, according to an embodiment of the present invention, an indoor air conditioning unit is provided, including a bottom shell 1 and a panel body 9. The panel body 9 has a panel 6. An air duct is provided between the bottom shell 1 and the panel 6. A cross-flow fan blade 2 is provided in the air duct. Each end of the cross-flow fan blade 2 has a fan blade connector 21. A rotary drive device 7 is provided at the position corresponding to the fan blade connector 21 at the first end of the cross-flow fan blade 2 on the bottom shell 1. The rotary drive device 7 has a first rotating shaft 71. A rotating shaft assembly 4 is provided at the position corresponding to the fan blade connector 21 at the second end of the cross-flow fan blade 2 on the bottom shell 1. The rotating shaft assembly 4 has a second rotating shaft 42. The fan blade connector 21 is detachably connected to the first rotating shaft 71 and the second rotating shaft 42 respectively, and the disassembly and assembly path of the fan blade connector 21 is located in a radial plane of the cross-flow fan blade 2. A fan blade connector 21 is provided at both ends of the cross-flow fan blade 2. A rotary drive device 7 is fixedly provided at the position corresponding to the fan blade connector 21 at the first end of the cross-flow fan blade 2 on the bottom shell 1, and a rotating shaft assembly 4 is fixedly provided at the position corresponding to the fan blade connector 21 at the second end of the cross-flow fan blade 2 on the bottom shell 1. The fan blade connectors 21 at both ends of the cross-flow fan blade 2 are detachably connected to the first rotating shaft 71 of the rotary drive device 7 and the second rotating shaft 42 of the rotating shaft assembly 4, respectively. The disassembly and assembly path of the fan blade connector 21 is located in a radial plane of the cross-flow fan blade 2. The radial plane is the convergence plane of all paths perpendicular to the axis center line of the cross-flow fan blade 2. The cross-flow fan blade 2 is disassembled and assembled along the radial direction of the cross-flow fan blade 2, making it convenient to disassemble and clean the cross-flow fan blade 2 in the air duct.

[0032] Preferably, the rotary drive device 7 is a motor.

[0033] In some embodiments, the protruding end of the first rotating shaft 71 has a first positioning surface on its outer peripheral wall, and the protruding end of the second rotating shaft 42 has a second positioning surface on its outer peripheral wall. The fan blade connector 21 has a mating surface on the side facing the first rotating shaft 71, and both the first positioning surface and the second positioning surface are in contact with the mating surface. The longitudinal cross-sections of the first rotating shaft 71 and the second rotating shaft 42 are D-shaped cross-sections. Using the planar position of the D-shaped cross-section as the first positioning surface and the second positioning surface, and aligning the first positioning surface with the mating surface and the second positioning surface with the mating surface, can make the installation between the first rotating shaft 71, the second rotating shaft 42 and the cross-flow fan blade 2 more secure.

[0034] It should be noted that the first rotating shaft 71 and the second rotating shaft 42 are on the same side of the fan blade connector 21.

[0035] Specifically, the fan blade connectors 21 at both ends of the cross-flow fan blade 2 are aligned and installed with the first positioning surface of the first rotating shaft 71 of the rotary drive device 7 and the second positioning surface of the second rotating shaft 42 of the rotating shaft assembly 4, respectively. The second rotating shaft 42 is fixedly installed in the rotating device 41 of the rotating shaft assembly 4 and can rotate together with the rotating device 41. Under the drive of the rotary drive device 7 (i.e., the motor), the first rotating shaft 71 drives the cross-flow fan blade 2 to rotate, and the cross-flow fan blade 2 drives the second rotating shaft 42 to rotate to form the cross-flow fan blade 2 rotating.

[0036] Preferably, the rotating device 41 is a bearing.

[0037] In some embodiments, the fan blade connector 21 is a connecting block extending outward along the axial direction of the cross-flow fan blade 2. The connecting block has a through hole, and a threaded connector is connected to the first positioning surface and the second positioning surface through the through hole. By using a connecting block extending outward along the axial direction of the cross-flow fan blade 2, the installation position is located outside the cross-flow fan blade 2, which reduces the installation difficulty. At the same time, the threaded connection method of the cross-flow fan blade is convenient and quick.

[0038] Specifically, the connecting block for the cross-flow fan blade 2 is a threaded connecting block, and the total length of the cross-flow fan blade 2 is less than the length of the air outlet of the indoor unit of the air conditioner. The threaded connecting block changes the axial assembly of the cross-flow fan blade 2 to a radial assembly, and screws are used for fastening to ensure smooth and safe rotation. The length of the cross-flow fan blade 2 is less than the length of the air outlet, which not only ensures space for installing screws on the threaded connecting block, but also ensures that the cross-flow fan blade 2 can be smoothly and safely removed from the air outlet together with the threaded connecting block.

[0039] In some embodiments, a rectifier mechanism detachably connected to the panel 9 is provided on the side of the air duct facing the panel 6. The rectifier mechanism includes an air outlet bracket 3, which has a volute tongue. The air outlet bracket 3 is provided on one side of the air duct of the indoor unit of the air conditioner, and the side of the air outlet bracket 3 facing the air duct has a volute tongue, replacing the volute tongue structure in the prior art. This not only rectifies the gas after heat exchange but also supports the bottom shell. Furthermore, it allows for easy disassembly of the air outlet bracket, solving the problem of the volute tongue structure being difficult to disassemble and affecting the cleanliness of the air duct.

[0040] In some embodiments, the air outlet frame 3 has a first wall surface with an installation structure for an air guiding and sweeping mechanism. The overall structure of the air outlet frame 3 is designed to fit the cross-flow fan blade 2 and the air conditioner panel 6. The installation structure of the air guiding and sweeping mechanism on the first wall surface of the air outlet frame 3 is connected to the air direction control device. Specifically, the air guide plate mounting component 33 is connected to the air guide plate 8, and the sweeping blade mounting component 34 is connected to the sweeping blade, so as to control the air direction of the air outlet and facilitate the disassembly and cleaning of the sweeping blade and the air guide plate 8.

[0041] In some embodiments, the air outlet frame 3 further has a second wall and a third wall respectively located at both ends of the first wall. The second wall and the third wall each have a guide block 31, which is adapted to the guide groove 11 on the bottom shell 1. During installation, the guide block 31 is aligned with the guide groove 11 on the bottom shell 1, and the air outlet frame 3 is installed conveniently and quickly under the action of the guide groove 11.

[0042] In some embodiments, the air outlet frame 3 has a hollow structure with reinforcing ribs 35 inside, and a cover plate 32 is provided on the side of the air outlet frame 3 facing the panel 6. The hollow structure makes the air outlet frame 3 lighter and saves costs, while the reinforcing ribs 35 can effectively meet the support function of the air outlet frame 3. The cover plate 32 on the air outlet frame 3 can make the overall structure of the air conditioner more aesthetically pleasing and also provide a beneficial effect of heat preservation of the air duct.

[0043] Specifically, the volute of the exhaust bracket 3 forms a stable and reliable air duct with the base shell 1 and the cross-flow fan blade 2. The exhaust bracket 3 is connected to the panel body 9 at both ends using screws. Guide grooves 11 and guide blocks 31 are provided between the two ends of the exhaust bracket 3 (i.e., the second and third walls) and the base shell 1 to ensure that the exhaust bracket 3 can smoothly enter the correct installation position, while the base shell 1 also provides effective support for the exhaust bracket 3. The exhaust bracket 3 provides effective support for the base shell 1 and the panel body 9 in the length direction. The exhaust bracket 3 also has a guide vane mounting component 33 to ensure the smooth rotation of the guide vane 8. The exhaust bracket 3 also has a sweeping blade mounting component 34 to ensure the left and right sweeping function of the sweeping blades.

[0044] In some embodiments, the indoor unit of the air conditioner further includes a directional mechanism 5, which is sleeved on the outer circumference of the first rotating shaft 71. When the connection between the cross-flow fan blade 2 and the first rotating shaft 71 of the rotary drive device 7 is disengaged, the first rotating shaft 71 will shift in position, affecting the installation of the cross-flow fan blade 2 next time. The directional mechanism 5, sleeved on the outer circumference of the first rotating shaft 71, is used to limit the first rotating shaft 71 of the rotary drive device 7, facilitating the installation of the cross-flow fan blade 2.

[0045] In some embodiments, the orientation mechanism 5 includes a bracket 51 with a through hole and a slider 52 slidably disposed in the through hole. A limiting boss 521 is provided at one end of the slider 52 near the rotary drive device 7. The limiting boss 521 is adapted to the limiting step of the bottom shell 1. The limiting step has a first limiting point 12 and a second limiting point 13. When the cross-flow fan blade 2 is in the disassembled state, the limiting boss 521 is engaged between the first limiting point 12 and the second limiting point 13. The first rotating shaft 71 and the slider 52 are both inserted through the through hole of the bracket 51. When the cross-flow fan blade 2 is connected to the first rotating shaft 71, the fan blade connector 21 on the cross-flow fan blade 2 abuts against the end of the slider 52 away from the rotary drive device 7. The orientation mechanism 5 is set between the fan blade connector 21 and the base of the bottom shell 1. When the fan blade connector 21 is disengaged from the first rotating shaft 71, the slider 52 moves away from the rotary drive device 7, causing the limiting boss 521 to abut against the limiting step of the bottom shell 1. The limiting boss 521 is engaged between the first limiting point 12 and the second limiting point 13 of the limiting step, thereby limiting the rotation of the slider 52. Due to the limiting effect of the slider 52, the first rotating shaft 71 will not change position, which facilitates the installation of the cross-flow fan blade 2.

[0046] In some embodiments, the orientation mechanism 5 further includes an elastic element 53 connected between the slider 52 and the bracket 51, so that the slider 52 can switch between a first position and a second position, wherein the first position is the position where the limiting boss 521 contacts the limiting step, and the second position is the position where the limiting boss 521 disengages from the limiting step. An elastic element 53 is provided inside the slider 52. When the elastic element is positioned between the end with the limiting boss 521 and the bracket, the slider 52 moves to the second position under the action of the fan blade connector 21, causing the limiting boss 521 to disengage from the limiting step and releasing the locking relationship between the first rotating shaft 71 and the bottom shell 1. At this time, the cross-flow fan blade 2 can rotate under the action of the rotary drive device 7. The elastic element 53 is under force. When the connection between the fan blade connector 21 and the first rotating shaft 71 is released, the slider 52 moves to the first position under the action of the elastic force, and the limiting boss 521 is engaged between the first limiting point 12 and the second limiting point 13, thus limiting the first rotating shaft 71. When the elastic element 53 is positioned between the end of the slider 52 away from the limiting boss 521 and the bracket, the operation process is the same as on the other side.

[0047] Preferably, the elastic element 53 is a spring.

[0048] Specifically, the directional mechanism 5 has a bracket 51, a spring, and a slider 52. The directional mechanism 5 is fixedly connected to the motor shaft (through a shape connection), with no relative radial rotation. When the cross-flow fan blade 2 is not removed, the threaded connecting block (i.e., the fan blade connector 21) on the cross-flow fan blade 2 presses against the slider 52 on the directional mechanism 5, causing the slider 52 to move closer to the motor side and compress the spring; simultaneously, the tail structure of the slider 52 (i.e., the limiting boss 521) moves away from the limiting point on the bottom shell 1. The cross-flow fan blade 2 rotates normally. When the cross-flow fan blade 2 is removed, the spring returns to its original position, pushing the slider 52 away from the motor side, and the tail structure of the slider 52 enters the limiting point, restricting the rotation of the directional mechanism 5 and the motor shaft.

[0049] This ensures that after the cross-flow fan blade 2 is removed, the motor shaft will not rotate too much, affecting reassembly. This limiting point is not needed on the other side of the bottom housing because the shaft on this side requires very little force to rotate, making manual adjustment easier; therefore, a limiting point is unnecessary.

[0050] During the disassembly and cleaning of the indoor unit of the air conditioner, the user only needs to open the panel 6 and then disassemble the air guide plate 8, cover plate 32, air outlet bracket 3, and cross-flow fan blade 2 in sequence, which is very simple and convenient. The use of screws for fixing ensures safety during use and disassembly / reassembly.

[0051] According to an embodiment of the present invention, an air conditioner is also provided, including the above-described indoor air conditioner unit.

[0052] It will be readily understood by those skilled in the art that the aforementioned advantageous methods can be freely combined and superimposed without conflict.

[0053] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The above are merely preferred embodiments of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. An air conditioner indoor unit comprising a bottom shell (1) and a panel body (9) having a panel (6), a wind channel being provided between the bottom shell (1) and the panel (6), a cross-flow fan blade (2) being provided in the wind channel, characterized in that, The cross-flow fan blade (2) has a fan blade connector (21) at each end. A rotary drive device (7) is provided at the position corresponding to the fan blade connector (21) at the first end of the cross-flow fan blade (2) on the bottom shell (1). The rotary drive device (7) has a first rotating shaft (71). A rotating shaft assembly (4) is provided at the position corresponding to the fan blade connector (21) at the second end of the cross-flow fan blade (2) on the bottom shell (1). The rotating shaft assembly (4) has a second rotating shaft (42). The fan blade connector (21) is detachably connected to the first rotating shaft (71) and the second rotating shaft (42) respectively. The disassembly and assembly path of the fan blade connector (21) is within a radial plane of the cross-flow fan blade (2). It also includes a directional mechanism (5), which is sleeved on the outer circumference of the first rotating shaft (71). The directional mechanism (5) includes a bracket (51) with a through hole and a slider (52) slidably disposed in the through hole. A limiting boss (521) is provided at one end of the slider (52) near the rotary drive device (7). The limiting boss (521) is adapted to the limiting step of the bottom shell (1). The limiting step has a first limiting point (12) and a second limiting point (13). When the cross-flow fan blade (2) is in the disassembled state, the limiting boss (521) is engaged between the first limiting point (12) and the second limiting point (13).

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The protruding end of the first rotating shaft (71) has a first positioning surface on its outer peripheral wall, and the protruding end of the second rotating shaft (42) has a second positioning surface on its outer peripheral wall. The fan blade connector (21) has a mating surface on the side facing the first rotating shaft (71), and both the first positioning surface and the second positioning surface are in contact with the mating surface.

3. The indoor unit of the air conditioner according to claim 1 or 2, characterized in that, The fan blade connector (21) is a connecting block that extends outward along the axial direction of the cross-flow fan blade (2). The connecting block has a through hole, and the threaded connector is connected to the first positioning surface or the second positioning surface through the through hole.

4. The indoor unit of the air conditioner according to claim 1, characterized in that, The air duct is provided with a rectifier mechanism that is detachably connected to the panel body (9) on the side facing the panel (6). The rectifier mechanism includes an air outlet frame (3) and the air outlet frame (3) has a volute tongue.

5. The indoor unit of the air conditioner according to claim 4, characterized in that, The air outlet frame (3) has a first wall surface, on which there is an installation structure for the air guiding and sweeping mechanism.

6. The indoor unit of the air conditioner according to claim 5, characterized in that, The air outlet frame (3) also has a second wall and a third wall at both ends of the first wall, and the second wall and the third wall have guide blocks (31) respectively. The guide blocks (31) are adapted to the guide grooves (11) on the bottom shell (1).

7. The indoor unit of the air conditioner according to claim 4, characterized in that, The air outlet frame (3) is a hollow structure, and the air outlet frame (3) is provided with reinforcing ribs (35).

8. The indoor unit of the air conditioner according to claim 7, characterized in that, The air outlet frame (3) is provided with a cover plate (32) on the side facing the panel.

9. The indoor unit of the air conditioner according to claim 1, characterized in that, The orientation mechanism (5) further includes an elastic element (53), which is connected between the slider (52) and the bracket (51) to allow the slider (52) to switch between a first position and a second position, wherein the first position is the position where the limiting boss (521) contacts the limiting step, and the second position is the position where the limiting boss (521) disengages from the limiting step.

10. An air conditioner, characterized in that, Includes the air conditioning indoor unit as described in any one of claims 1-9.

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