CN114593457B

CN114593457B - Indoor unit of air conditioner

Info

Publication number: CN114593457B
Application number: CN202111211741.0A
Authority: CN
Inventors: 黄满良; 王永涛; 张鹏; 王晓刚; 李英舒
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2023-03-24
Anticipated expiration: 2041-10-18
Also published as: CN114593457A

Abstract

The application relates to the technical field of air guide of air conditioners and discloses an air conditioner indoor unit. This machine in air conditioning includes aviation baffle and the motion subassembly that drives the aviation baffle motion, and wherein, the motion subassembly includes: the crank is provided with a rotating center and a free end, and the free end is provided with a first transmission shaft; one end of the first connecting rod is rotatably connected with the air deflector, and the first connecting rod is slidably connected with the first transmission shaft; one end of the second connecting rod is rotatably connected with the air deflector; the crank drives the first connecting rod and the second connecting rod to move so as to enable the air deflector to extend out and rotate, and the linear distance d from the closed state to the maximum opening angle of the air deflector is greater than or equal to the effective length r of the crank. Through the limitation on the effective length r and the linear distance d of the crank, the air deflector can extend out of the indoor unit of the air conditioner and can rotate to the maximum opening angle, and the moving assembly is simple in structure.

Description

Indoor unit of air conditioner

Technical Field

The application relates to the technical field of air guide of air conditioners, for example to an air conditioner indoor unit.

Background

At present, an air conditioner is an electric appliance widely applied, has a cooling and/or heating function, can adjust the indoor environment temperature of a user, and provides a comfortable indoor environment for the user.

In the prior art, the air conditioner usually adopts an air deflector as an air guiding mechanism, and the air deflector is driven or driven by a moving component to extend out or rotate so as to extend out to a specific position or angle, thereby meeting the requirement of a user on air supply comfort. In order to realize the extension and rotation of the air deflector, the existing moving assembly of the air deflector comprises an extension mechanism for driving the air deflector to extend out and a rotating mechanism for driving the air deflector to rotate, the pushing mechanism pushes the air deflector out of the air outlet for a certain distance, and then the rotating mechanism drives the air deflector to rotate so as to sweep air or guide air.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

the rotation of the air deflector is usually controlled by a motor, and the rotation angle of the air deflector is limited to a certain extent, so that the requirement of large-angle air supply of the air deflector cannot be met.

Disclosure of Invention

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides an air conditioner indoor unit, which can meet the requirements that an air deflector can extend out of the air conditioner indoor unit and can rotate to the maximum opening angle, and a user can supply air at a large angle.

In some embodiments, the indoor unit for an air conditioner includes: the air guide plate comprises an air guide plate and a motion assembly driving the air guide plate to move, wherein the motion assembly comprises a crank, a first connecting rod and a second connecting rod, the crank is provided with a rotation center and a free end, and the free end is provided with a first transmission shaft; one end of a first connecting rod is rotatably connected with the air deflector, and the first connecting rod is slidably connected with the first transmission shaft; one end of the second connecting rod is rotatably connected with the air deflector; the crank drives the first connecting rod and the second connecting rod to move so as to enable the air deflector to extend out and rotate, and the linear distance d from the closed state to the maximum opening angle of the air deflector is greater than or equal to the effective length r of the crank.

Optionally, the motion assembly further comprises a track plate provided with a track portion defining the motion of the first and second links; the first connecting rod and the second connecting rod synchronously and linearly move under the limitation of the track portion to enable the air deflector to extend to a first preset position, then the first connecting rod changes direction in motion, and the second connecting rod continuously linearly moves to enable the air deflector to rotate to the maximum opening angle.

Optionally, when the air deflector rotates from the closed state to the maximum opening angle, the rotation angle of the crank is a first preset angle α, and the linear distance d, the first preset angle α, and the effective length r of the crank satisfy the following relationship: d = r + r cos (180 ° - α).

Optionally, when the air deflector moves from the closed state to the maximum upward opening angle, the first link moves linearly by a first distance c1, and when the air deflector moves from the closed state to the maximum downward opening angle, the first link moves linearly by a second distance c2, and the linear distance d, the first distance c1, and the second distance c2 satisfy the following relationship: d > max (c 1, c 2).

Optionally, the first link includes a first sliding column and a second sliding column, and the first sliding column is disposed at a top end of the first link; the second sliding column is arranged below the first sliding column; wherein the first sliding column and the second sliding column are used for limiting the motion track of the first connecting rod.

Optionally, the rail portion comprises a first rail and a second rail, the first rail being in a chevron shape; the second rail is linear and is arranged at the lower side of the first rail; wherein the first sliding column moves within the first track, the second sliding column moves within the second track, and the second link moves within the second track.

Optionally, a first connecting hole is formed in the tail end of the first connecting rod, the first connecting hole is hinged to the air deflector, and a second connecting hole is formed in the tail end of the second connecting rod, and the second connecting hole is hinged to the air deflector.

Optionally, a first preset length m is provided between the first sliding column and the second sliding column, and a second preset length n is provided between the second sliding column and the first connection hole, where a relationship between m and n satisfies: n is m E [0.8,1.2].

Optionally, the first track includes a first linear track, a first branch track and a second branch track, the first branch track is communicated with the first linear track; the second branch track is communicated with the first straight track, and the extending direction of the second branch track is different from that of the first branch track.

Optionally, the length of the first linear rail is greater than or equal to the distance that the air deflector extends to a first preset position from the closed state.

The air-conditioning indoor unit provided by the embodiment of the disclosure can realize the following technical effects:

the air conditioner indoor unit provided by the embodiment of the disclosure comprises an air deflector and a motion assembly connected with the air deflector, wherein the motion assembly comprises a crank, a first connecting rod and a second connecting rod, and the crank provides driving force for the motion of the first connecting rod and the second connecting rod so as to drive the air deflector to extend out of the air conditioner indoor unit and rotate to a preset angle. In the process that the air deflector moves from the closed state to the maximum opening angle, the movement track of the air deflector comprises extension and rotation, and the movement track of the air deflector can be an arc line or a straight line. In the embodiment of the present disclosure, the linear distance d does not refer to a moving track of the air guiding plate from the closed state to the maximum opening angle state, but refers to a linear distance between the two states of the air guiding plate. The effective length r of the crank is the distance between the centre of rotation of the crank and the first drive shaft. The straight-line distance d is larger than or equal to the effective length r of the crank, so that the air deflector can extend out of the indoor unit of the air conditioner and can rotate to the maximum opening angle, and the requirement of large-angle air supply of a user is met. In addition, in the embodiment of the disclosure, the air deflector can extend out and rotate through the set of motion assembly, and the structure of the motion assembly is simplified.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

FIG. 1 is a schematic diagram of the overall structure of a motion assembly provided by the disclosed embodiment;

FIG. 2 is a schematic view of the position of the crank of one of the louvers as it is opened upwardly to a maximum angle from the closed position;

FIG. 3 is a schematic structural diagram of a crank provided in the embodiments of the present disclosure;

FIG. 4 is a schematic view of a first link according to the present disclosure;

FIG. 5 is a schematic structural diagram of another first link provided by the disclosed embodiment;

FIG. 6 is a schematic diagram of a second link according to the embodiments of the present disclosure;

fig. 7 is a schematic structural diagram of a track slab according to an embodiment of the present disclosure;

FIG. 8 is a schematic view of the movable assembly with one of the air deflectors extended to a first predetermined position according to the present disclosure;

FIG. 9 is a schematic view of the kinematic assembly with one of the louvers closed as provided by embodiments of the present disclosure;

FIG. 10 is a schematic view of the kinematic assembly of one of the air deflectors of the present disclosure in an upwardly open position;

fig. 11 is a schematic view of the kinematic assembly in a downwardly open position of one of the louvers according to the present disclosure.

Reference numerals:

10: a crank; 11: rotating the disc; 111: a notch; 12: rotating the rod; 121: a first drive shaft; 122: a second drive shaft; 20: a first link; 21: a through groove; 23: a limiting groove; 231: a first flared section; 232: a second flared section; 233: a U-shaped section; 24: a limiting column; 25: a first sliding column; 26: a second sliding column; 27: a first connection hole; 28: a rolling section; 281: a cylinder; 282: a shaft sleeve; 30: a second link; 31: a third sliding column; 32: a fourth sliding column; 33: a fifth sliding column; 34: a second connection hole; 35: penetrates through the slide way; 40: a track plate; 41: a first linear track; 42: a first branch track; 43: a second branch track; 44: a second linear track; 45: a third linear track; 46: a fourth linear track; 47: opening the groove; 48: a sliding sleeve; 50: an air deflector.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged as appropriate for the embodiments of the disclosure described herein. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

The air-conditioning indoor unit provided by the embodiment of the disclosure is a large-guide-plate type air-conditioning indoor unit, and the air deflector 50 of the air-conditioning indoor unit can completely seal the air outlet of the air-conditioning indoor unit when the air-conditioning indoor unit is in a closed state, so that the attractiveness of the air-conditioning indoor unit is improved, and dust can be prevented from entering the air-conditioning indoor unit from the air outlet.

In some embodiments, the air conditioning indoor unit includes an air deflector 50 and a moving component for driving the air deflector 50 to move, wherein the moving component includes a crank 10, a first connecting rod 20 and a second connecting rod 30, the crank 10 has a rotation center and a free end, and the free end is provided with a first transmission shaft 121; one end of the first link 20 is rotatably connected with the air deflector 50, and the first link 20 is slidably connected with the first transmission shaft 121; one end of the second connecting rod 30 is rotatably connected with the air deflector 50; the crank 10 drives the first connecting rod 20 and the second connecting rod 30 to move so as to enable the air deflector 50 to extend and rotate, and a linear distance d from the closed state to the maximum opening angle of the air deflector 50 is greater than or equal to an effective length r of the crank 10.

In the movement process of the air deflector 50, the crank 10 provides driving force for the movement of the first connecting rod 20 and the second connecting rod 30, and drives the air deflector 50 to extend out of the air conditioner indoor unit and rotate to a preset angle. In the process that the air deflector 50 moves from the closed state to the maximum opening angle, the movement track of the air deflector 50 includes extension and rotation, and the movement track of the air deflector 50 may include an arc line or a straight line. In the embodiment of the present disclosure, the linear distance d does not refer to a moving track of the air guiding plate 50 from the closed state to the maximum opening angle state, but refers to a linear distance between the two states of the air guiding plate 50. The effective length r of the crank 10 is the distance between the center of rotation of the crank 10 and the first drive shaft 121. The straight-line distance d is greater than or equal to the effective length r of the crank 10, so that the air deflector 50 can extend out of the indoor unit of the air conditioner and can rotate to the maximum opening angle, and the requirement of large-angle air supply of a user is met. In addition, in the embodiment of the present disclosure, the air guiding plate 50 can extend and rotate through the set of moving components, so as to simplify the structure of the moving components.

Optionally, the movement assembly further comprises a track plate 40, the track plate 40 being provided with a track portion defining the movement of the first link 20 and the second link 30; the first connecting rod 20 and the second connecting rod 30 synchronously and linearly move under the limitation of the track portion to extend the air deflector 50 to a first preset position, and then the first connecting rod 20 changes the direction of movement, and the second connecting rod 30 continuously linearly moves to rotate the air deflector 50 to a maximum opening angle.

In the embodiment of the present disclosure, the motion process of the motion assembly driving the air deflector 50 is as follows: under the limitation of the track part, the first connecting rod 20 and the second connecting rod 30 synchronously move linearly to drive the air deflector 50 to extend to a first preset position, and then the first connecting rod 20 starts to move and change directions, and the second connecting rod 30 continues to move linearly, so that the first connecting rod 20 and the second connecting rod 30 generate relative movement, and the air deflector 50 rotates while extending until the air deflector is opened to a maximum angle. In the process of extending and rotating the air deflector 50, the second link 30 moves linearly all the time, and the rotation of the air deflector 50 is realized by the movement steering of the first link 20 relative to the second link 30, therefore, the linear distance d of the air deflector 50 moving from the closed state to the maximum opening angle is the linear movement distance of the second link 30 along the track portion, as shown in fig. 1, the dotted line in the figure represents the position of the second link 30 when the air deflector 50 is opened to the maximum angle, the solid line represents the initial position of the moving component when the air deflector 50 is in the closed state, and d is the distance of the second link 30 moving from the initial position to the position when the air deflector 50 is at the maximum opening angle.

The first preset position is a position where the air deflector 50 extends out of the air conditioner in a horizontal movement manner and is about to start to rotate, as shown in fig. 8, at this time, a certain distance is provided between the air deflector 50 and the air outlet, and the air deflector 50 can be opened upwards or downwards at the first preset position. The rotation position of the air deflector 50 may not be limited to the first preset position, the first preset position may also be understood as an initial position of the rotation of the air deflector 50, and the rotation of the air deflector 50 may be understood as rotation while extending.

Optionally, the crank 10 comprises a turning disc 11 and a turning rod 12, the turning disc 11 has a center of rotation, the turning disc 11 is provided with a notch 111; the first end of the rotating rod 12 is fixedly connected to the notch 111, and the second end of the rotating rod 12 is a free end. Optionally, a first transmission shaft 121 is provided at the free end of the swivelling levers 12. In the embodiment of the present disclosure, a schematic structural diagram of the crank 10 is shown in fig. 3.

Optionally, the motion assembly provided by the embodiment of the present disclosure further includes a motor, and optionally, the motor is a bidirectional driving motor. The moving component can drive the air deflector 50 to be opened or closed by controlling the rotation direction of the motor; the moving assembly can drive the air deflector 50 to be opened upwards or downwards by controlling the rotation direction of the motor so as to adapt to the refrigeration or heating mode of the air conditioner. Alternatively, the motor is a stepping motor, and the angle of rotation of the crank 10 can be controlled by controlling the step size of the stepping motor. It is understood that the rotary disk 11 has a driving surface contacting the motor, the rotary rod 12 has a rotating surface contacting the link, and the first transmission shaft 121 is provided to the rotating surface of the rotary rod 12.

Alternatively, when the air deflector 50 rotates from the closed state to the maximum opening angle, the rotation angle of the crank 10 is a first preset angle α, and the linear distance d, the first preset angle α and the effective length r of the crank 10 satisfy the following relationship: d = r + r cos (180 ° - α).

As shown in fig. 2, the crank 10 is rotated clockwise for example, and α represents the rotation angle of the crank 10 corresponding to the air deflector 50 from the closed state to the maximum opening angle state, and optionally, the longitudinal center line of the crank 10 at the initial position is the same as and on the same straight line with the direction of the linear motion of the second connecting rod 30. During the extending and rotating process of the wind deflector 50, the rotation center of the crank 10 is not changed, and the crank 10 rotates along the rotation center from the initial position, so that the linear distance d and the first preset angle α satisfy the above mathematical relation according to mathematical reasoning. Thus, the air deflector 50 is rotated to a larger opening angle from a sufficient space after being extended out, and the requirement of a user for large-angle air supply is met.

Optionally, when the air deflector 50 moves from the closed state to the maximum upward opening angle, the linear movement distance of the first link 20 is a first distance c1, and when the air deflector 50 moves from the closed state to the maximum downward opening angle, the linear movement distance of the first link 20 is a second distance c2, and the linear distance d, the first distance c1, and the second distance c2 satisfy the following relationship: d > max (c 1, c 2).

As described above, in the moving process of the air deflector 50, the second link 30 moves linearly along the track portion until the second link moves to the end of the corresponding track and stops moving, and the first link 20 starts to move and turn after reaching the first preset position, and extends and rotates relative to the second link 30, so that the moving track of the first link 20 is the combined displacement of the extending displacement and the rotating displacement of the first link 20. With the connection point between the first link 20 and the air guide plate 50 as a reference point, as shown in fig. 10, the dotted line is the position of the first link 20 in the closed state of the air guide plate 50, the solid line is the state of the moving component when the air guide plate 50 is opened upward to the maximum angle, and c1 is the linear movement distance of the first link 20 corresponding to the time from the closed state to the time when the air guide plate 50 is opened upward to the maximum angle. As shown in fig. 11, the dotted line is the position of the first link 20 in the closed state of the air deflector 50, the solid line is the state of the moving component when the air deflector 50 is opened downward to the maximum angle, and c2 is the linear movement distance of the first link 20 corresponding to the time when the air deflector 50 is opened downward to the maximum angle from the closed state. When the linear distance d for moving the air guide plate 50 from the closed state to the maximum opening angle is greater than the maximum value of c1 and c2, the air guide plate 50 can be smoothly opened regardless of the angle from which it is opened. Alternatively, the connection point of the first link 20 and the air guide plate 50 may be a center point of the first connection hole 27 described below. It is understood that c1 and c2 can be obtained by measurement, and thus a reasonable value of the linear distance d can be obtained.

Optionally, the first link 20 comprises a first sliding column 25 and a second sliding column 26, the first sliding column 25 is disposed at the top end of the first link 20; the second sliding column 26 is arranged below the first sliding column 25; wherein, the first sliding column 25 and the second sliding column 26 are used for defining the motion track of the first connecting rod 20.

Optionally, the rail portion comprises a first rail and a second rail, the first rail being in a chevron shape; the second track is linear and is arranged at the lower side of the first track; wherein the first sliding post 25 moves in a first orbit, the second sliding post 26 moves in a second orbit, and the second link 30 moves in the second orbit.

As shown in fig. 7, the track plate 40 provided by the embodiment of the present disclosure has an open groove 47, and a first track and a second track are disposed in the open groove 47, wherein the first track is disposed at an upper portion of the open groove 47, and the second track is disposed at a lower side of the first track. The second rail is a rail groove penetrating the rail plate 40 from the bottom surface of the open recess 47 to the inside. As shown in fig. 7, the first track is in a herringbone shape, and the second track is in a straight line shape, wherein the first sliding column 25 of the first link 20 can move along two branch tracks of the herringbone shape in the first track, and the second sliding column 26 always moves in a straight line in the second track, so that when the first sliding column 25 starts to select the branch track, the first link 20 starts to move and turn. After the second sliding post 26 is moved to the end of the corresponding track and then stops moving, the first sliding post 25 continues to move along the two branch tracks of the herringbone type, so that the first link 20 starts to rotate with the second sliding post 26 as a base point. The air deflector 50 is opened to the maximum angle until the first sliding column 25 moves to the end of the branch rail of the first rail.

In the embodiment of the present disclosure, both the first link 20 and the second link 30 are rotatably connected to the air deflector 50, and optionally, a first connection hole 27 is formed at a distal end of the first link 20, the first connection hole 27 is hinged to the air deflector 50, a second connection hole 34 is formed at a distal end of the second link 30, and the second connection hole 34 is hinged to the air deflector 50.

Optionally, the first sliding column 25 and the second sliding column 26 have a first preset length m therebetween, and the second sliding column 26 and the first connection hole 27 have a second preset length n therebetween, where a relationship between m and n satisfies: n is m E [0.8,1.2].

As shown in fig. 5, m is a first predetermined length between the first sliding column 25 and the second sliding column 26, and n is a second predetermined length between the first connecting hole 27 and the second sliding column 26. During the movement of the wind deflector 50, the first sliding column 25 and the second sliding column 26 jointly define the movement track of the first link 20. As described above, the process of turning the movement of the first link 20 can be understood as the rotation of the first sliding column 25 and the second connecting hole 34 about the second sliding column 26 based on the principle of leverage. In the case where the total length of the first link 20 is determined, when n is small, m may be large, resulting in a large size of the drive cartridge in which the moving components are installed; when n is large, m is small, which results in a short track of the track plate 40 and a high requirement for the accuracy of the motor drive. Thus, the ratio of n to m needs to be within a predetermined range to balance the two aforementioned requirements, i.e., the precision of the driving motion and the size of the part. Alternatively, the preset range may be between 0.8 and 1.2, for example, n: the ratio of m may be 0.8, 0.9, 1.0, 1.1 or 1.2, etc.

Optionally, the first track comprises a first linear track 41, a first branch track 42 and a second branch track 43, the first branch track 42 being in communication with the first linear track 41; the second branch rail 43 communicates with the first straight rail 41, and the extending direction of the second branch rail 43 is different from the extending direction of the first branch rail 42.

Optionally, the extending direction of the first linear track 41 is the same as and on the same straight line as the extending direction of the second track.

The crank 10 provides a driving force for the movement of the first link 20 through the sliding connection with the first link 20, and optionally, a limit column 24 is arranged between the first sliding column 25 and the second sliding column 26 of the first link 20, and during the process that the air deflector 50 moves from the closed state to the first preset position, the limit column 24 abuts against the second link 30 to provide a driving force for the movement of the second link 30. During the process that the air deflector 50 moves from the closed state to the first preset position, the first and

second links

20 and 30 move in the direction of the first linear rail 41. When the first sliding column 25 of the first connecting rod 20 starts to select the first branch track 42 or the second branch track 43 to move, the first connecting rod 20 starts to move and turn, the second connecting rod 30 always moves along the second track, and the first connecting rod 20 and the second connecting rod 30 start to move relatively to drive the air deflector 50 to start to rotate until the air deflector is opened to the maximum angle.

Alternatively, the second rail includes three linear rails, i.e., a second linear rail 44, a third linear rail 45, and a fourth linear rail 46, and the second link 30 moves linearly along the three linear rails of the second rail at all times during the extension and rotation of the air deflector 50.

Optionally, one surface of the second connecting rod 30 abuts against the first connecting rod 20, and the other surface is provided with a third sliding column 31, a fourth sliding column 32 and a fifth sliding column 33, which are arranged in a triangular shape as shown in fig. 6, so that the limiting effect on the movement track of the second connecting rod 30 is improved. Wherein the third sliding column 31 moves in the second linear track 44, the fourth sliding column 32 moves in the third linear track 45, and the fifth sliding column 33 moves in the fourth linear track 46.

Optionally, the second link 30 is further provided with a through slide 35 that penetrates the plate surface of the second link 30. The second link 30 is provided with a through slide 35 so that the second sliding column 26 of the first link 20 can move along the second track through the through slide 35.

Optionally, sliding sleeves 48 are disposed in the first track and the second track, the sliding sleeves 48 are engaged with the first track and the second track and can slide in the tracks, and the sliding sleeves 48 are engaged with the sliding columns of the first connecting rod 20 or the second connecting rod 30.

Optionally, the sliding column includes a sliding column body and a limiting end, the sliding column body is a split column 281, one end of the sliding column body is fixedly disposed on the first connecting rod 20 or the second connecting rod 30, and the other end is a free end; the limiting end is arranged at the free end of the sliding column body. Thus, the friction force of the sliding of the first link 20 or the second link 30 can be reduced, and the service life of the first link 20 or the second link 30 can be prolonged.

Optionally, the length of the first linear rail 41 is greater than or equal to the distance that the air deflector 50 extends from the closed state to the first preset position.

It can be understood that the extending direction of the air deflector 50 moving to the first preset position is the same as the extending direction of the first linear rail 41, and in order to realize the extending and rotating processes of the air deflector 50, the length of the first linear rail 41 is greater than or equal to the distance of the air deflector 50 extending from the closed position to the first preset position, so that a sufficient rotating space can be provided for the rotation of the air deflector 50.

Optionally, the first link 20 further comprises a through slot 21, and the through slot 21 is slidably connected with the first transmission shaft 121.

The sliding connection between the crank 10 and the first link 20 is realized by the sliding of the first transmission shaft 121 in the through slot 21, the through slot 21 is linear, and during the sliding process, the first transmission shaft 121 does not rotate, but rotates along the rotation center of the crank 10 under the driving of the crank 10. The motion locus of the first transmission shaft 121 is a circle with the rotation center of the crank 10 as the center of the circle and the effective length r of the crank 10 as the radius.

In the embodiment of the present disclosure, the driving force for the first sliding column 25 of the first link 20 to start to select the movement of the first branch rail 42 or the second branch rail 43 is achieved by providing the first link 20 with the limiting groove 23 and providing the crank 10 with the second transmission shaft 122.

Optionally, the first link 20 is further provided with a limiting groove 23, the limiting groove 23 is disposed on one side of the through groove 21 and is communicated with the through groove 21, and the limiting groove 23 is used for providing driving force for the movement redirection of the first link 20. Optionally, the second transmission shaft 122 is disposed between the rotation center of the crank 10 and the first transmission shaft 121. When the crank 10 is rotated from the initial position, the second transmission shaft 122 moves within the stopper groove 23 along the inner edge of the stopper groove 23.

Optionally, the inner edge of the retaining groove 23 comprises a first flared section 231, a U-shaped section 233 and a second flared section 232, wherein the U-shaped section 233 is disposed between the first flared section 231 and the second flared section 232.

In the embodiment of the present disclosure, the first restriction site is represented by a in fig. 4, and the second restriction site is represented by B. As shown in fig. 4, the limiting groove 23 is disposed at the lower side of the through groove 21 in a flared shape, the limiting groove 23 includes a first flared section 231 and a second flared section 232, the first flared section 231 has a first limiting point a connected to the U-shaped section 233, and the second flared section 232 has a second limiting point B connected to the U-shaped section 233. The U-shaped section 233 is disposed between the first flared section 231 and the second flared section 232, and the initial position of the second transmission shaft 122 of the crank 10 is located on the U-shaped section 233.

It can be understood that, a part of the motion trajectory of the second transmission shaft 122 of the crank 10 is the inner edge of the limiting groove 23, but only at the first limiting point a and the second limiting point B, the second transmission shaft 122 has an abutting force with the inner edge of the limiting groove 23, so that the first link 20 can change the direction of motion against gravity, and the first sliding column 25 moves along the predetermined trajectory. At other positions of the limiting groove 23, the second transmission shaft 122 and the inner edge of the limiting groove 23 do not have the above-mentioned abutting force.

Optionally, the depth of the limiting groove 23 is smaller than the depth of the through groove 21, in the process that the crank 10 drives the first connecting rod 20 to move, the first transmission shaft 121 always slides along the through groove 21, the second transmission shaft 122 moves to the upper side of the through groove 21 through the through groove 21 along the inner edge of the limiting groove 23, in order to achieve the above process, the limiting groove 23 needs to be communicated with the through groove 21, and the depth of the limiting groove 23 is smaller than the depth of the through groove 21, so that the first transmission shaft 121 can always keep sliding along the through groove 21.

Optionally, a preset included angle is formed between the extending direction of the through slot 21 of the active link 20 and a second direction perpendicular to the first direction in which the air deflector 50 extends. That is, under the condition that the extending direction of the through groove 21 is not perpendicular to the first direction in which the air deflector 50 extends, the load of the motor can be reduced, the service life of the motor can be prolonged, the motor can smoothly drive the crank 10 to move, and the air deflector 50 can smoothly move.

Optionally, the preset included angle is in a range greater than 0 °.

In the embodiment of the present disclosure, the preset included angle may be represented by θ, and as shown in fig. 8, the preset included angle refers to an acute angle between the extending direction of the through groove 21 and the second direction. Optionally, the range of the preset included angle may be greater than 0 ° and less than or equal to 50 °, so that the load of the motor may be reduced, the service life of the motor may be prolonged, and the effect of stably driving the air deflector to move may be achieved. For example, the preset included angle may be 10 °, 20 °, 30 °, 40 °, or 50 °, and so on.

Optionally, the first link 20 is further provided with a rolling portion 28, and the rolling portion 28 is used to move in the direction of movement of the first link 20 to reduce friction during movement of the first link 20.

In the embodiment of the present disclosure, during the movement of the first link 20, due to the possible dimensional deviation of the first link 20 and the related components thereof during the processing, a certain amount of pressing may exist between the first link 20 and the related components, and by providing the rolling portion 28 around the first link 20, the friction between the first link 20 and the related components during the movement can be reduced, thereby prolonging the service life of the first link 20 and the related components. It is understood that the movement of the rolling part 28 along the direction of the movement of the first link 20 means that the rolling part 28 can follow the movement of the first link 20 to the direction of the movement of the first link 20, and does not mean the movement direction of the rolling part 28 itself, and alternatively, the movement direction of the rolling part 28 itself may be opposite to the movement direction of the first link 20.

Optionally, the rolling portion 28 is disposed at the top end of the first link 20, and/or disposed at one side of the through groove 21. The frictional force between the tip of the first link 20 and/or the vicinity of the through groove 21 and the relevant parts can be reduced to make the first link 20 move more smoothly.

Optionally, the rolling part 28 includes a cylinder 281 and a bushing 282, one end of the cylinder 281 is fixedly connected to the first link 20, and the other end is provided with a limiting end; the axle sleeve 282 is sleeved on the outer surface of the cylinder 281 and is clamped with the limiting end, and the axle sleeve 282 is used for moving along the moving direction of the first connecting rod 20. The outer diameter of the sleeve 282 is greater than or equal to the thickness of the first link 20, so that the press fit of related parts on the first link 20 can be reduced, and the friction force of the movement of the first link 20 can be reduced.

The moving assembly provided by the embodiment of the present disclosure drives the air deflector 50 to move as follows:

the initial state of the moving assembly with the air deflector 50 in the closed state is shown in figure 9. When the crank 10 rotates in the third direction or the fourth direction from the initial position shown in fig. 10, the first transmission shaft 121 slides in the first connecting rod 20 to drive the first connecting rod 20 and the second connecting rod 30 to move, wherein the first connecting rod 20 moves linearly along the first linear track 41, and the second connecting rod 30 moves linearly along the second linear track, so as to drive the air deflector 50 to move linearly to the first predetermined position. The first predetermined position can be understood as the position of the wind deflector 50 corresponding to the first sliding column 25 of the first link 20 when the first branch rail 42 or the second branch rail 43 is to be selected.

When the crank 10 rotates in the third direction, the air deflector 50 moves to the first preset position, the second transmission shaft 122 of the crank 10 moves to the first limit point a, and due to the existence of the abutting force between the second transmission shaft 122 and the first limit point a, the first sliding column 25 of the first link 20 is provided with the driving force for selecting the track, so that the first sliding column 25 of the first link 20 moves along the right side edge of the first linear track 41 and then enters the first branch track 42, the second sliding column 26 of the first link 20 passes through the through slide 35 of the second link 30 to continue moving in the second linear track 44, and the movement direction of the first link 20 is changed. Meanwhile, the second link 30 continues to move linearly along the second track, so that the air deflector 50 is opened upward by the cooperation of the first link 20 and the second link 30, as shown in fig. 10.

When the crank 10 rotates in the fourth direction, the air deflector 50 moves to the first preset position, the second transmission shaft 122 of the crank 10 moves to the second limit point B, and due to the existence of the abutting force between the second transmission shaft 122 and the second limit point B, the driving force for selecting the track is provided for the first sliding column 25 of the first link 20, so that the first sliding column 25 moves along the left side of the first linear track 41 and then enters the second branch track 43, the second sliding column 26 of the first link 20 passes through the through slide 35 of the second link 30 to continue moving in the second linear track 44, and the first link 20 changes the direction of movement. Meanwhile, the second link 30 continues to move linearly along the second track, so that the air deflector 50 is opened downward by the cooperation of the first link 20 and the second link 30, as shown in fig. 11.

Optionally, the time node when the second transmission shaft 122 of the crank 10 moves to the first limit point a or the second limit point B is earlier than or equal to the time node when the first sliding column 25 of the first link 20 starts to select the movement of the first branch rail 42 or the second branch rail 43, so that the movement of the first link 20 is redirected under the abutting force of the second transmission shaft 122 and the first limit point a or the second limit point B.

It can be understood that the first link 20 starts to select the first branch rail 42 to move, i.e. a state that the first sliding column 25 of the first link 20 still moves in the first linear rail 41 and just starts to move along the right side edge of the first linear rail 41; the first link 20 starts to select the second branch rail movement 43, that is, a state in which the first sliding column 25 of the first link 20 is still moving within the first linear rail 41 and just starts to move along the left side edge of the first linear rail 41.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An air-conditioning indoor unit is characterized by comprising an air deflector and a motion assembly for driving the air deflector to move, wherein the motion assembly comprises:

the crank is provided with a rotating center and a free end, and the free end is provided with a first transmission shaft;

one end of the first connecting rod is rotatably connected with the air deflector, and the first connecting rod is slidably connected with the first transmission shaft;

one end of the second connecting rod is rotatably connected with the air deflector; and the combination of (a) and (b),

the track plate is provided with a track part for limiting the motion of the first connecting rod and the second connecting rod, the first connecting rod and the second connecting rod synchronously move linearly under the limitation of the track part to enable the air deflector to extend to a first preset position, then the first connecting rod moves for changing the direction, the second connecting rod continues to move linearly to enable the air deflector to rotate to a maximum opening angle,

the crank drives the first connecting rod and the second connecting rod to move so as to enable the air deflector to extend out and rotate, and the linear distance d from the closed state to the maximum opening angle of the air deflector is greater than or equal to the effective length r of the crank.

2. An indoor unit of an air conditioner according to claim 1,

when the air deflector rotates from the closed state to the maximum opening angle, the rotation angle of the crank is a first preset angle alpha, and the linear distance d, the first preset angle alpha and the effective length r of the crank satisfy the following relations: d = r + r cos (180 ° - α).

3. An indoor unit of an air conditioner according to claim 1,

when the air deflector moves from a closed state to a maximum upward opening angle, the linear movement distance of the first connecting rod is a first distance c1,

when the air deflector moves from a closed state to a maximum angle of downward opening, the distance of the linear movement of the first connecting rod is a second distance c2,

the straight distance d, the first distance c1 and the second distance c2 satisfy the following relationship:

d>max(c1,c2)。

4. an indoor unit of an air conditioner according to claim 1, wherein the first link includes:

the first sliding column is arranged at the top end of the first connecting rod; and the combination of (a) and (b),

the second sliding column is arranged below the first sliding column;

wherein the first sliding column and the second sliding column are used for limiting the motion track of the first connecting rod.

5. An indoor unit of an air conditioner according to claim 4, wherein the rail portion includes:

the first track is in a herringbone shape; and the combination of (a) and (b),

the second rail is linear and is arranged at the lower side of the first rail;

wherein the first sliding column moves within the first track, the second sliding column moves within the second track, and the second link moves within the second track.

6. An indoor unit of an air conditioner according to claim 5,

the tail end of the first connecting rod is provided with a first connecting hole which is hinged with the air deflector,

and a second connecting hole is formed in the tail end of the second connecting rod and hinged to the air deflector.

7. An indoor unit of an air conditioner according to claim 6,

first predetermined length m has between first slip post and the second slip post, second slip post with have second predetermined length n between the first connecting hole, wherein, m satisfies with the relation of n: n is m E [0.8,1.2].

8. An indoor unit of an air conditioner according to claim 5, wherein the first rail includes:

a first linear track;

a first branch rail in communication with the first linear rail; and the combination of (a) and (b),

and the second branch track is communicated with the first straight track, and the extending direction of the second branch track is different from that of the first branch track.

9. An indoor unit of an air conditioner according to claim 8,

the length of the first linear track is greater than or equal to the distance of the air deflector extending out of the closed state to a first preset position.