Indoor unit of air conditioner

Abstract

The invention provides an air conditioner indoor unit which comprises a machine shell, a heat exchanger and a heat exchanger. The air inlet panel is rotationally connected with the machine shell and used for opening or closing the air inlet; the driving device is arranged in the machine shell, connected with the air inlet panel and used for driving the air inlet panel to rotate from the closed position to the front lower portion to a first opening angle so as to meet the air inlet requirement. And the driving device also allows external force to pull the air inlet panel, so that the air inlet panel is forced to continuously rotate from the first opening angle to the front lower direction to the second opening angle, and the cleaning requirement is met. The air inlet panel has the advantages that the angle limitation of conventional automatic opening and closing of the air inlet panel can be broken through, and the cleaning difficulty of parts such as the filter screen is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, in particular to an indoor unit of an air conditioner. Background Art

[0002] With the improvement of people's living standards, air conditioners have become essential appliances in homes and offices. As a component that directly interacts with the indoor environment, the structural design of the air conditioner indoor unit has an important impact on the user experience and maintenance convenience.

[0003] At present, the air intake panel of the indoor unit of the air conditioner usually adopts a fixed opening angle design, which can only meet the normal air intake needs. When the user needs to clean the inside of the indoor unit, due to the limited opening angle of the air intake panel, it is difficult to reach the internal filter, evaporator and other components, making the cleaning work difficult, and even requiring the use of professional tools to remove the panel, which not only increases the user's usage burden, but also poses the risk of damaging the equipment due to improper disassembly. Summary of the invention

[0004] An object of the present invention is to overcome at least one technical defect in the prior art and provide an air conditioner indoor unit.

[0005] Another object of the present invention is to break through the angle limitation of the conventional automatic opening and closing of the air inlet panel and reduce the difficulty of cleaning components such as the filter.

[0006] A further object of the present invention is to avoid slack or shaking of the rope and ensure the stability and reliability of the air inlet panel during rotation.

[0007] Another further object of the present invention is to avoid the problem of rotational interference between the air inlet panel and the housing, and ensure that the air inlet panel can be opened and closed smoothly.

[0008] A further object of the present invention is to quickly guide the air inlet panel to generate an opening trend, thereby ensuring that the air inlet panel is opened in time.

[0009] In particular, the present invention provides an air conditioner indoor unit, comprising:

[0010] A casing, the front side of which is provided with an air inlet;

[0011] an air inlet panel, rotatably connected to the housing, and used to open or close the air inlet; and

[0012] A driving device is disposed in the housing and connected to the air inlet panel, and is used to drive the air inlet panel to rotate from a closed position toward the front and bottom to a first open angle to meet the air inlet demand; and

[0013] The driving device also allows an external force to turn the air inlet panel, so that the air inlet panel is forced to continue to rotate from the first opening angle to the second opening angle towards the front lower part to meet the cleaning requirements.

[0014] Optionally, the driving device includes:

[0015] A rope;

[0016] A driving wheel around which the rope is wound, and the rope is wound and released by rotation; and

[0017] A tensioning wheel arranged in front of the driving wheel to provide a fulcrum for the rope;

[0018] One end of the rope is fixed to the driving wheel, and the other end bypasses the tensioning wheel and is fixed to the air inlet panel. Moreover, during the process that the driving wheel releases the rope and the air inlet panel rotates to the first opening angle, the position of the tensioning wheel is fixed; during the process that an external force turns the air inlet panel and the air inlet panel rotates to the second opening angle, the tensioning wheel slides backward.

[0019] Optionally, the driving device further includes:

[0020] A first guide wheel arranged below the tensioning wheel; and

[0021] A second guide wheel arranged behind the first guide wheel;

[0022] After the rope bypasses the tensioning wheel, the second guide wheel and the first guide wheel in sequence, it is connected to the air inlet panel.

[0023] Optionally, the driving device further includes:

[0024] A rope wheel seat having a guide groove extending forward and backward;

[0025] A guide block slidably connected in the guide groove; and

[0026] A spring press-fitted in the guide groove and pressing the guide block against the front end of the guide groove;

[0027] Moreover, the driving wheel is installed at the rear end of the rope wheel seat, and the tensioning wheel is installed on the guide block. During the process that the air inlet panel rotates to the first opening angle, the spring applies an elastic thrust to the guide block to maintain the fixed position of the tensioning wheel.

[0028] Optionally, a guide rod is arranged in the guide groove, a through groove for the guide rod to pass through is arranged on the guide block, and the spring is sleeved on the guide rod; and

[0029] A limiting portion is formed at the rear end of the guide rod, the front end of the spring abuts against the guide block, and the rear end abuts against the limiting portion.

[0030] Optionally, the air inlet surface includes a panel main body, a rotating arm, and a rotating shaft. The two ends of the rotating arm are respectively connected to the panel main body and the rotating shaft, so that the rotating shaft is located below the panel main body;

[0031] Moreover, a shaft hole is formed in the casing, and the rotating shaft is rotatably connected in the shaft hole.

[0032] Optionally, the air inlet panel further includes a torsion spring. The torsion spring is sleeved on the rotating shaft, one end of which is fixed to the rotating arm, and the other end abuts against the casing, for applying an elastic thrust to the rotating arm to urge the air inlet panel to open.

[0033] Optionally, the torsion force of the torsion spring is set as T 扭 、the distance from the fixing point of the rope to the center of the rotating shaft of the air inlet panel is L, the torque of the driving wheel is M 主 、the radius of the driving wheel is R 主 、the initial elastic force of the spring is F 弹 , then:

[0034] T 扭 ×L < M 主 ×R 主 <1 / 2F 弹 .

[0035] Optionally, the driving device further includes:

[0036] a motor, whose output shaft is connected to the driving wheel, configured to controllably drive the driving wheel to rotate forward and backward.

[0037] Optionally, an air outlet is further provided on the front side of the casing. The air outlet extends horizontally in the lower region on the front side of the casing, and the air inlet extends horizontally in the upper region on the front side of the casing; and

[0038] the air inlet area of the air inlet is larger than the air outlet area of the air outlet.

[0039] For the air conditioner indoor unit of the present invention, its driving device can automatically drive the air inlet panel to smoothly rotate from the closed state to the first opening angle, ensuring efficient air intake during the operation of the air conditioner. At the same time, it breaks through the limitation of the traditional automatic opening and closing angle. When the user needs to deeply clean components such as the filter screen, without the need to disassemble with tools, only by applying manual force, the air inlet panel can be further rotated from the first opening angle to a larger second opening angle, significantly expanding the operation space, greatly reducing the cleaning operation difficulty, taking into account the daily use and maintenance requirements, and effectively improving the user experience and equipment maintenance efficiency.

[0040] Furthermore, in the indoor unit of the air conditioner of the present invention, when the driving wheel releases the rope and drives the air inlet panel to rotate from the closed position toward the front and bottom to the first opening angle, the tension wheel maintains a fixed position, so that the rope is always in a taut state, avoiding the rope from loosening or shaking, ensuring stable power transmission, and making the air inlet panel rotate smoothly. When the air inlet panel is manually pulled, the tension wheel slides backward, changing the transmission path of the rope, so that the rope can be further released, thereby smoothly rotating to a larger second opening angle.

[0041] Furthermore, in the indoor air conditioner of the present invention, the rotating arm connects the panel body and the rotating shaft, and the rotating shaft is placed below the panel body. By utilizing the low position of the rotating shaft, the lower edge of the panel body can avoid the casing with a larger margin during the rotation of the air inlet panel, completely eliminating the risk of interference between the two during rotation. Whether it is automatically opened to the first opening angle or manually adjusted to the second opening angle, the air inlet panel can complete the action without hindrance, significantly improving the reliability and smoothness of operation of the indoor air conditioner.

[0042] Furthermore, in the indoor unit of the air conditioner of the present invention, the torsion spring is sleeved on the rotating shaft, one end of the torsion spring is firmly fixed to the rotating arm, and the other end is abutted against the housing, thereby applying elastic thrust to the rotating arm. When the driving wheel starts to release the rope, the elastic potential energy pre-stored in the torsion spring is immediately converted into thrust, which acts on the rotating arm, quickly guiding the air inlet panel to generate an opening trend, ensuring the timely opening of the air inlet panel, and avoiding the situation where the air inlet panel is stagnant due to failure of the rope release.

[0043] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0045] Figure 1 is a schematic structural diagram of an air conditioner indoor unit according to an embodiment of the present invention;

[0046] Figure 2 yes Figure 1 A schematic layout diagram of the air inlet and outlet of the indoor unit of the air conditioner shown;

[0047] Figure 3 is a schematic cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the present invention;

[0048] Figure 4 is a schematic cross-sectional view of an indoor air conditioner according to another embodiment of the present invention;

[0049] Figure 5 is a schematic cross-sectional view of an indoor air conditioner according to still another embodiment of the present invention;

[0050] Figure 6 is a schematic side view of a rope pulley seat according to an embodiment of the present invention;

[0051] Figure 7 is a schematic structural diagram of a rope pulley seat according to an embodiment of the present invention;

[0052] Figure 8 is a schematic assembly diagram of a rope pulley seat and a rope pulley box according to an embodiment of the present invention;

[0053] Figure 9 is a schematic structural diagram of an air inlet panel according to an embodiment of the present invention;

[0054] Figure 10 is a schematic cross-sectional view of an air inlet panel and a housing according to an embodiment of the present invention.

[0055] Reference numerals:

[0056] 10, indoor air conditioner; 100, housing; 101, air inlet; 102, air outlet; 103, shaft hole; 110, air inlet panel; 111, panel main body; 112, rotating arm; 113, rotating shaft; 114, torsion spring; 120, air outlet panel; 210, rope; 220, driving wheel; 230, tensioning wheel; 240, first guide wheel; 250, second guide wheel; 260, rope pulley seat; 261, guide groove; 262, guide rod; 263, limiting portion; 264, spring; 270, guide block; 271, through groove; 280, rope pulley box; 290, motor. Detailed Description of the Invention

[0057] Reference will now be made in detail to the embodiments of the present invention, one or more examples of which are illustrated in the accompanying drawings. Each of the embodiments provided is intended to explain the present invention, not to limit the present invention. In fact, various modifications and variations to the present invention will be apparent to those skilled in the art without departing from the scope or spirit of the present invention. For example, features illustrated or described as part of one embodiment can be used with another embodiment to yield still another embodiment. Accordingly, the present invention is intended to cover such modifications and variations that come within the scope of the appended claims and their equivalents.

[0058] The following refers to Figures 1-10To describe the air conditioner indoor unit 10 according to an embodiment of the present invention. Among them, the orientation or positional relationship indicated by "inside", "outside", "up", "down", "top", "bottom", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0059] In the description of this embodiment, it should be understood that the meaning of the term "a plurality" is at least two, such as two, three, etc., unless otherwise specifically limited. 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 can be further included.

[0060] In the description of this embodiment, the character " / " indicates that the objects before and after are an "or" relationship. For example, A / B means: A or B. The term "and / or" is an associative relationship describing an object, indicating that three relationships can exist. For example, A and / or B means: A or B, or, the three relationships of A and B.

[0061] In the description of this embodiment, the description referring to terms such as "an embodiment", "some embodiments", "some examples", "an example", etc. 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 representations 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.

[0062] Air conditioners are generally divided into an integrated air conditioner in which all components are installed in a single body, and a split air conditioner in which all components are separately installed in an indoor unit and an outdoor unit. The air conditioner indoor unit 10 disclosed in this embodiment belongs to the indoor unit of a split air conditioner, and the air conditioning function can be realized by matching with a conventional outdoor unit. Since the structure and working principle of the outdoor unit are well known to those skilled in the art, they will not be described in detail here.

[0063] Figure 1 is a schematic structural diagram of an air conditioner indoor unit 10 according to an embodiment of the present invention, Figure 2 is Figure 1 a schematic layout diagram of the air inlet 101 and the air outlet 102 of the air conditioner indoor unit 10 shown, Figure 3 is a schematic cross-sectional view of an air conditioner indoor unit 10 according to an embodiment of the present invention, Figure 4 is a schematic cross-sectional view of an air conditioner indoor unit 10 according to another embodiment of the present invention, Figure 5It is a schematic cross-sectional view of an air conditioner indoor unit 10 according to another embodiment of the present invention. Among them, Figure 3 the shown air inlet panel 110 is in the closed position, Figure 4 the shown air inlet panel 110 is at the first opening angle, Figure 5 the shown air inlet panel 110 is at the second opening angle.

[0064] As Figures 1 to 5 shown, the air conditioner indoor unit 10 of this embodiment generally may include a housing 100, an air inlet panel 110, and a driving device.

[0065] Among them, an air inlet 101 is provided on the front side of the housing 100. That is, the air conditioner indoor unit 10 of this embodiment sucks indoor air from the front side of the housing 100. An air outlet 102 is also provided on the front side of the housing 100. The air outlet 102 extends horizontally in the lower region on the front side of the housing 100, and the air inlet 101 extends horizontally in the upper region on the front side of the housing 100, and the air inlet area of the air inlet 101 is larger than the air outlet area of the air outlet 102.

[0066] In one example, the shape of the housing 100 is generally rectangular, and both the air inlet 101 and the air outlet 102 are long strip openings extending along the horizontal direction of the housing 100.

[0067] On the one hand, the front side space of the housing 100 can be fully utilized, so that the air inlet 101 and the air outlet 102 occupy a larger area, thereby improving the air flow efficiency. On the other hand, the long strip opening is also beneficial to the uniform distribution of air, avoiding the problem of excessive or too small air volume in the local area.

[0068] Since the air inlet area of the air inlet 101 is larger than the air outlet area of the air outlet 102, even if the wind speed at the air inlet 101 is low, it can ensure that enough air volume enters the housing 100, and after being processed, it is discharged from the air outlet 102 at a higher wind speed.

[0069] At the same time, since the area of the air inlet 101 is large, the local wind speed of the air inlet 101 can also be reduced, reducing noise and vibration, and improving the comfort and stability of the air conditioner indoor unit 10.

[0070] In one example, the left - right length of the air inlet 101 is equal to the left - right length of the air outlet 102, and the up - down height of the air inlet 101 is greater than the up - down height of the air outlet 102, so that the air inlet area of the air inlet 101 is larger than the air outlet area of the air outlet 102.

[0071] The air inlet panel 110 is rotatably connected to the housing 100 and is used to open or close the air inlet 101. When the air conditioner is not in use, the air inlet panel 110 is closed to prevent dust and debris from entering the air conditioner. When the indoor air needs to be adjusted, the air inlet panel 110 is opened to allow air to flow in and out normally, thereby ensuring the normal operation of the air conditioner.

[0072] In one example, an air outlet panel 120 may also be provided at the air outlet 102. The air outlet panel 120 may be rotatably connected to the housing 100 and opened or closed synchronously with the air inlet panel 110.

[0073] The driving device is disposed in the housing 100 and is connected to the air inlet panel 110 for driving the air inlet panel 110 to rotate from a closed position toward the front and bottom to a first open angle to meet the air inlet demand.

[0074] In this embodiment, the air inlet panel 110 is in a vertical state when in the closed position. When the air conditioner is running, the driving device will rotate the air inlet panel 110 from the vertical state toward the front and bottom to a first opening angle. For example, the first opening angle is 30 degrees, ensuring that sufficient air intake can be obtained when the air conditioner is operating normally.

[0075] Furthermore, the driving device also allows an external force to pull the air inlet panel 110, so that the air inlet panel 110 is forced to continue to rotate from the first opening angle toward the front and bottom to a second opening angle, such as 45°, to meet cleaning requirements.

[0076] In this embodiment, the external force pulling specifically refers to the user manually applying force to pull the air inlet panel 110 toward the front and bottom. When the user needs to clean the inside of the air conditioner, the cleaning instruction can be sent in advance before turning off the air conditioner. After receiving the instruction, the air conditioner indoor unit 10 will stop running immediately, and the driving device will enter the cleaning mode, and will no longer actively retract the air inlet panel 110, so that it remains at the first opening angle. At this time, the user can directly apply force manually to rotate the air inlet panel 110 from the first opening angle further toward the front and bottom to a larger second opening angle.

[0077] With the above structure, the driving device can automatically drive the air intake panel 110 to rotate smoothly from the closed state to the first opening angle, ensuring efficient air intake when the air conditioner is running. At the same time, it breaks through the limitations of traditional automatic opening and closing angles. When the user needs to deeply clean the filter and other components, there is no need to use tools to disassemble. Only by manual force, the air intake panel 110 can be further rotated from the first opening angle to a larger second opening angle, which significantly expands the operating space, greatly reduces the difficulty of cleaning operations, takes into account daily use and maintenance needs, and effectively improves user experience and equipment maintenance efficiency.

[0078] In an optional embodiment, the driving device may include a rope 210, a driving wheel 220 and a tension wheel 230, wherein the rope 210 may be a steel wire rope, the driving wheel 220 is used to wind the rope 210, the driving wheel 220 realizes winding and releasing the rope 210 by rotating, and the tension wheel 230 is arranged in front of the driving wheel 220 to provide a fulcrum for the rope 210. One end of the rope 210 is fixed to the driving wheel 220, and the other end is fixed to the air inlet panel 110 by passing through the tension wheel 230, and the position of the tension wheel 230 is fixed in the process of the driving wheel 220 releasing the rope 210 to rotate the air inlet panel 110 to the first opening angle; the tension wheel 230 slides backwards in the process of the air inlet panel 110 being rotated to the second opening angle by the external force.

[0079] With the above structure, when the driving wheel 220 releases the rope 210 and drives the air intake panel 110 to rotate from the closed position to the front and lower side to the first opening angle, the tension wheel 230 maintains a fixed position, so that the rope 210 is always in a taut state, avoiding the rope 210 from loosening or shaking, ensuring stable power transmission, and making the air intake panel 110 rotate smoothly. When the air intake panel 110 is manually pulled, the tension wheel 230 slides backward, changing the transmission path of the rope 210, so that the rope 210 can be further released, so as to smoothly rotate to a larger second opening angle.

[0080] It should be noted that the first opening angle is a preset fixed angle. When the driving device drives the air inlet panel 110 to rotate to the first opening angle, the driving wheel 220 just completely releases the rope 210, and at the same time, the driving wheel 220 no longer rotates, so that the air inlet panel 110 can be ensured to stay at the first opening angle accurately and stably.

[0081] In an optional embodiment, the driving device may further include a first guide wheel 240 and a second guide wheel 250, wherein the first guide wheel 240 is arranged below the tensioning wheel 230, and the second guide wheel 250 is arranged behind the first guide wheel 240, and the rope 210 is connected to the air inlet panel 110 after passing around the tensioning wheel 230, the second guide wheel 250 and the first guide wheel 240 in sequence.

[0082] The first guide wheel 240 and the second guide wheel 250 can change the transmission path of the rope 210, accurately guide the rope 210, ensure that the rope 210 is always on the predetermined path, and avoid the rope 210 from running off or being misplaced.

[0083] The first guide wheel 240 is arranged below the tensioning wheel 230, and the second guide wheel 250 is behind the first guide wheel 240. Such a layout enables the rope 210 to transfer force to the tensioning wheel 230 more reasonably when stressed. When the tensioning wheel 230 needs to slide backward, the pulling direction of the rope 210 is more conducive to the tensioning wheel 230 overcoming friction and sliding backward smoothly.

[0084] It can be understood that when the rope 210 is only wound around the tensioning wheel 230 and connected to the air inlet panel 110, its running direction is relatively single. When the tensioning wheel 230 slides, the length change of the rope 210 mainly depends on the displacement of the tensioning wheel 230 itself. After adding the second guide wheel 250 and the first guide wheel 240, the rope 210 forms a zigzag winding path. When the tensioning wheel 230 slides backward, not only does its own displacement release the rope 210, but also the angle of the rope 210 changes due to winding around the second guide wheel 250 and the first guide wheel 240, additionally increasing the released length of the rope 210. More rope 210 is released, enabling the air inlet panel 110 to rotate to a larger angle to meet the air inlet requirements under different working conditions.

[0085] Figure 6 It is a schematic side view of the rope wheel seat 260 according to an embodiment of the present invention. Figure 7 It is a schematic structural diagram of the rope wheel seat 260 according to an embodiment of the present invention. Figure 8 It is a schematic assembly diagram of the rope wheel seat 260 and the rope wheel box 280 according to an embodiment of the present invention.

[0086] In an alternative embodiment, the driving device may further include a rope wheel seat 260, a guide block 270, and a spring 264. Among them, the rope wheel seat 260 has a guide groove 261 extending forward and backward. The guide block 270 is slidably connected in the guide groove 261. The spring 264 is press-fitted in the guide groove 261 and abuts the guide block 270 against the front end of the guide groove 261. Moreover, the driving wheel 220 is installed at the rear end of the rope wheel seat 260, and the tensioning wheel 230 is installed on the guide block 270. During the process of the air inlet panel 110 rotating to the first opening angle, the spring 264 exerts an elastic thrust on the guide block 270 to maintain the position of the tensioning wheel 230 fixed.

[0087] When the user manually turns the air inlet panel 110 from the first opening angle to the second opening angle, the guide block 270 can slide smoothly backward in the guide groove 261, driving the tensioning wheel 230 to move synchronously. This enables the rope 210 to have sufficient release space, allowing the air inlet panel 110 to rotate to a larger angle without obstruction. When the external force is removed, the guide block 270 can slide forward along the guide groove 261, driving the tensioning wheel 230 back to the front end of the guide groove 261, enabling the air inlet panel 110 to smoothly return to the first opening angle or the closed position.

[0088] The guide groove 261 provides a clear sliding path for the guide block 270, reducing the frictional force and wobbling during the movement of the guide block 270. When the air inlet panel 110 is toggled, the user does not need to overcome additional resistance to move the tension pulley 230, making the operation easier and more labor-saving, reducing the operation difficulty, and improving the operation convenience.

[0089] Further, a guide rod 262 may be provided in the guide groove 261, a through groove 271 for the guide rod 262 to pass through is provided on the guide block 270, and the spring 264 is sleeved on the guide rod 262; and a limiting portion 263 is formed at the rear end of the guide rod 262, the front end of the spring 264 abuts against the guide block 270, and the rear end abuts against the limiting portion 263.

[0090] The guide rod 262 passes through the through groove 271 on the guide block 270, providing precise guidance for the sliding of the guide block 270 in the guide groove 261. This enables the guide block 270 to slide only along the axial direction of the guide rod 262, avoiding the situation of lateral wobbling or deviation during the sliding of the guide block 270. When an external force toggles the air inlet panel 110 and the tension pulley 230 needs to move, the guide block 270 can slide smoothly backward along the guide rod 262; after the external force is cancelled, it can slide forward smoothly along the guide rod 262, ensuring the stability and reliability of the adjustment process of the air inlet panel 110.

[0091] The cooperation between the guide rod 262 and the through groove 271 can reduce the contact area between the guide block 270 and the guide groove 261, thereby reducing the frictional force during the sliding process. Compared with the direct sliding of the guide block 270 in the guide groove 261, this design reduces the occurrence of jamming phenomena, makes the sliding of the guide block 270 smoother, and improves the smoothness of the operation of the air inlet panel 110.

[0092] The spring 264 is sleeved on the guide rod 262, and the guide rod 262 plays a restraining role on the spring 264. During the process of the spring 264 being compressed or releasing elastic force, the guide rod 262 can prevent the spring 264 from undergoing lateral bending or torsional deformation, ensuring that the spring 264 always generates elastic force along the axial direction. In this way, the spring 264 can stably apply an elastic thrust to the guide block 270, maintaining the position of the tension pulley 230 fixed, or accurately adjusting the position of the tension pulley 230 during the adjustment of the air inlet panel 110.

[0093] Since the spring 264 is restricted on the guide rod 262, the direction of its elastic force can be precisely controlled. The front end of the spring 264 abuts against the guide block 270, and the rear end abuts against the limiting portion 263, enabling the elastic force to act accurately on the guide block 270, avoiding the problems of elastic force dispersion or direction deviation. This helps to improve the control accuracy of the spring 264 on the guide block 270 and the tension pulley 230, ensuring the stable operation of the air inlet panel 110 in different states.

[0094] In some embodiments, the driving device may further include a rope pulley box 280, which is buckled on the rope pulley seat 260 from one side of the rope pulley seat 260, effectively isolating the intrusion of external impurities such as dust and water vapor, reducing the risk of component wear and transmission jamming caused by foreign objects entering, and extending the service life of the driving device.

[0095] In one example, the driving wheel 220, the tensioning wheel 230, the first guiding wheel 240, and the second guiding wheel 250 are all integrated on the rope pulley seat 260. The rope pulley box 280 is buckled on the rope pulley seat 260 and has an opening for the rope 210 to extend out, so that the rope 210 can extend out of the rope pulley box 280 and be connected to the air inlet panel 110.

[0096] Figure 9 is a schematic structural diagram of the air inlet panel 110 according to an embodiment of the present invention, Figure 10 is a schematic cross-sectional view of the air inlet panel 110 and the housing 100 according to an embodiment of the present invention.

[0097] In some embodiments, the air inlet surface may include a panel main body 111, a rotating arm 112, and a rotating shaft 113. The two ends of the rotating arm 112 are respectively connected to the panel main body 111 and the rotating shaft 113, so that the rotating shaft 113 is located below the panel main body 111; and, a shaft hole 103 is formed on the housing 100, and the rotating shaft 113 is rotatably connected in the shaft hole 103.

[0098] With the above structure, the rotating arm 112 connects the panel main body 111 and the rotating shaft 113, and places the rotating shaft 113 below the panel main body 111. By using the low position setting of the rotating shaft 113, when the air inlet panel 110 rotates, the lower edge of the panel main body 111 can avoid the housing 100 with a larger margin, completely eliminating the risk of interference between the two during rotation. Whether it is automatically opened to the first opening angle or manually adjusted to the second opening angle, the air inlet panel 110 can complete the action unobstructed, significantly improving the use reliability and operation fluency of the air conditioner indoor unit 10.

[0099] In some embodiments, the air inlet panel 110 may further include a torsion spring 114. The torsion spring 114 is sleeved on the rotating shaft 113, and one end of it is fixed to the rotating arm 112, and the other end abuts against the housing 100, for applying an elastic thrust to the rotating arm 112 to urge the air inlet panel 110 to open.

[0100] With the above structure, the torsion spring 114 is sleeved on the rotating shaft 113. One end of the torsion spring 114 is firmly fixed to the rotating arm 112, and the other end abuts against the casing 100, thereby applying an elastic thrust to the rotating arm 112. When the driving wheel 220 starts to release the rope 210, the elastic potential energy pre-stored in the torsion spring 114 is immediately converted into thrust, acting on the rotating arm 112, quickly guiding the air inlet panel 110 to have an opening tendency, ensuring the timely opening of the air inlet panel 110, and avoiding the situation that the air inlet panel 110 remains stationary due to the failure of the rope 210 to be released.

[0101] In one example, the air inlet panel 110 is provided with two rotating arms 112, two rotating shafts 113 and two torsion springs 114. These two sets of components are respectively arranged on the transverse two sides of the panel main body 111. During the rotation of the air inlet panel 110, the rotating arms 112, rotating shafts 113 and torsion springs 114 on both sides can evenly disperse the force, avoiding rotation jamming caused by uneven force on one side. The components on both sides cooperate to make the rotation process of the air inlet panel 110 smoother and more stable, further improving the rotation performance and stability of the air inlet panel 110.

[0102] In an alternative embodiment, the driving device may further include a motor 290. The output shaft of the motor 290 is connected to the driving wheel 220 and is configured to controllably drive the driving wheel 220 to rotate forward and backward.

[0103] The motor 290 can precisely control the rotation direction and angle of the driving wheel 220. When it is necessary to open the air inlet panel 110, the motor 290 drives the driving wheel 220 to rotate forward, releases the rope 210, and makes the air inlet panel 110 quickly rotate to the first opening angle to meet the air inlet requirement. When it is necessary to close the air inlet panel 110, the motor 290 drives the driving wheel 220 to rotate backward, winds up the rope 210, and smoothly pulls the air inlet panel 110 back to the closed position.

[0104] In addition, by controlling the forward and backward rotation of the driving wheel 220 by the motor 290, various operating modes of the air inlet panel 110 can also be realized. For example, in the automatic mode, the air conditioner can automatically adjust the opening and closing angle of the air inlet panel 110 according to environmental parameters such as indoor temperature and humidity to achieve the best air circulation and cooling and heating effects.

[0105] In this embodiment, the torque of the torsion spring 114 is set as T 扭 、the distance from the fixed point of the rope 210 and the air inlet panel 110 to the center of the rotating shaft 113 is L, the torque of the driving wheel 220 is M 主 、the radius of the driving wheel 220 is R 主 、the initial elastic force of the spring 264 is F 弹 , then: T 扭 ×L < M 主×R 主 <1 / 2F 弹 。

[0106] The torsion spring 114 is sleeved on the rotating shaft 113, and will apply an elastic thrust to the rotating arm 112, prompting the air inlet panel 110 to open. The driving wheel 220 is connected to the air inlet panel 110 through the rope 210. When it is necessary to close the air inlet panel 110, the driving wheel 220 needs to provide sufficient torque to overcome the resistance of the torsion spring 114. T 扭 ×L represents the moment that causes the air inlet panel 110 to open generated by the torsion spring 114, M 主 ×R 主 is the moment provided by the driving wheel 220 to drive the rope 210 to pull the air inlet panel 110. When T 扭 ×L < M 主 ×R 主 When this is the case, the driving wheel 220 can generate sufficient pulling force to overcome the elastic force of the torsion spring 114, and smoothly pull the air inlet panel 110 back to the closed position, ensuring that when the indoor unit does not need air intake, the air inlet panel 110 can be normally closed, preventing dust, sundries, etc. from entering the interior of the indoor unit.

[0107] The spring 264 is installed under pressure in the guide groove 261 of the rope pulley seat 260, and presses the guide block 270 against the front end of the guide groove 261. The tension pulley 230 is installed on the guide block 270. The elastic force of the torsion spring 114 will be transmitted to the entire system through structures such as the rotating arm 112 and the rotating shaft 113. If the moment generated by the torsion spring 114 is too large, the guide block 270 may shift in the guide groove 261. And T 扭 ×L < 1 / 2F 弹 , ensuring that the elastic force of the torsion spring 114 does not exceed half of the elastic force of the spring 264. The spring 264 can provide sufficient supporting force to resist the action of the torsion spring 114, maintaining the position stability of the guide block 270, so as to ensure that the tension pulley 230 is always in a suitable position and provides stable tension for the rope 210.

[0108] The stability of the position of the tension pulley 230 is crucial for the transmission of the rope 210. If the guide block 270 shifts due to the action of the torsion spring 114, the position of the tension pulley 230 will also change accordingly, which may cause the rope 210 to be slack or the tension to be uneven, affecting the transmission efficiency and stability of the rope 210. By restricting T 扭 ×L < 1 / 2F 弹 , this situation can be avoided, ensuring that the rope 210 can smoothly drive the air inlet panel 110 to move under the drive of the driving wheel 220.

[0109] The torque of the driving wheel 220 is transmitted to the entire system through the rope 210. If the torque of the driving wheel 220 is too large, it may cause excessive tensile force on the spring 264 and the guide block 270, resulting in excessive compression of the spring 264 or rapid sliding of the guide block 270 in the guide groove 261.

[0110] M 主 ×R 主 <1 / 2F 弹 The torque of the driving wheel 220 is limited, enabling the spring 264 to withstand the tensile force generated by the driving wheel 220. At the same time, it ensures smooth movement of the guide block 270 in the guide groove 261, protects structural components such as the spring 264 and the guide block 270, and extends their service life. When the driving wheel 220 pulls the rope 210 to close the air inlet panel 110, an appropriate torque can make the movement of the air inlet panel 110 smoother. If the torque of the driving wheel 220 is too large, there may be a large impact force during the process of the air inlet panel 110 closing from the second opening angle, resulting in collision between the panel and the casing 100, generating noise and damage. And M 主 ×R 主 <1 / 2F 弹 can enable the air inlet panel 110 to be buffered by the spring 264 during the closing process, avoid excessive impact force, achieve smooth closing, and enhance the user experience.

[0111] 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 disclosed content of 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 determined to cover all these other variations or modifications.

Claims

1. An air conditioner indoor unit, comprising: A casing, the front side of which is provided with an air inlet; An air inlet panel, rotatably connected to the housing, and used to open or close the air inlet; as well as A driving device is disposed in the housing and connected to the air inlet panel, and is used to drive the air inlet panel to rotate from a closed position toward the front and bottom to a first open angle to meet the air inlet demand; and The driving device also allows external force to pull the air inlet panel, so that the air inlet panel is forced to continue to rotate from the first opening angle toward the front and bottom to the second opening angle to meet cleaning requirements.

2. The indoor air conditioner according to claim 1, wherein, The driving device comprises: rope; A driving wheel, for winding the rope, and realizing winding and releasing the rope by rotating; and A tensioning wheel, arranged in front of the driving wheel, providing a fulcrum for the rope; One end of the rope is fixed to the driving wheel, and the other end passes through the tensioning wheel and is fixed to the air inlet panel. In addition, when the driving wheel releases the rope to rotate the air inlet panel to the first opening angle, the position of the tensioning wheel is fixed; when an external force pulls the air inlet panel to rotate the air inlet panel to the second opening angle, the tensioning wheel slides backward.

3. The air conditioner indoor unit according to claim 2, wherein, The driving device further comprises: A first guide wheel, disposed below the tension wheel; and a second guide wheel, arranged behind the first guide wheel; The rope is connected to the air inlet panel after passing through the tensioning wheel, the second guide wheel and the first guide wheel in sequence.

4. The air conditioner indoor unit according to claim 2, wherein, The driving device further comprises: A sheave seat having a guide groove extending forward and backward; a guide block slidably connected in the guide groove; and A spring is installed in the guide groove under pressure and pushes the guide block to the front end of the guide groove; Furthermore, the driving wheel is installed at the rear end of the rope pulley seat, and the tensioning wheel is installed on the guide block. When the air inlet panel rotates to the first opening angle, the spring applies elastic thrust to the guide block to maintain the fixed position of the tensioning wheel.

5. The air conditioning indoor unit according to claim 4, wherein: A guide rod is arranged in the guide groove, a through groove for the guide rod to pass through is arranged on the guide block, and the spring is sleeved on the guide rod; and The rear end of the guide rod forms a limiting portion, the front end of the spring is pressed against the guide block, and the rear end is pressed against the limiting portion.

6. The air conditioning indoor unit according to claim 4, wherein: The air inlet surface includes a panel body, a rotating arm and a rotating shaft, and two ends of the rotating arm are respectively connected to the panel body and the rotating shaft, so that the rotating shaft is located below the panel body; In addition, the housing is provided with an axial hole, and the rotating shaft is rotatably connected in the axial hole.

7. The air conditioning indoor unit according to claim 6, wherein: The air inlet panel also includes a torsion spring, which is sleeved on the rotating shaft, and one end of the torsion spring is fixed to the rotating arm, and the other end abuts against the casing, and is used to apply elastic thrust to the rotating arm to cause the air inlet panel to open.

8. The air conditioning indoor unit according to claim 7, wherein: Set the torsion of the torsion spring to T 扭 The distance from the fixed point of the rope and the air inlet panel to the center of the rotating shaft is L, and the torque of the driving wheel is M 主 The radius of the driving wheel is R 主 The initial elastic force of the spring is F 弹 , then: T 扭 ×L < M 主 ×R 主 <1 / 2F 弹 。 9. The air conditioner indoor unit according to claim 2, wherein, The driving device further comprises: A motor, whose output shaft is connected to the driving wheel, is configured to controllably drive the driving wheel to rotate forward and backward.

10. The indoor air conditioner according to claim 1, wherein An air outlet is further provided on the front side of the housing, the air outlet extends horizontally in the lower area of the front side of the housing, and the air inlet extends horizontally in the upper area of the front side of the housing; and The air inlet area of the air inlet is larger than the air outlet area of the air outlet.

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