CN118258121A - Unpowered air deflector and air conditioner - Google Patents

Abstract

The invention provides an unpowered air deflector and an air conditioner with the same, which are low in cost and simple in structure, can be closed when no air is supplied, can supply air downwards, and can save energy consumption. The wind deflector is capable of freely rotating around a rotation axis extending in a length direction, is divided into a first part having a first width and a second part having a second width larger than the first width by the rotation axis in a width direction, is closed by rotating around the rotation axis, and wind moment acting on a windward side overcomes the total weight moment to reversely rotate the wind deflector around the rotation axis to open, and when the wind deflector is in a closed state, the gravitational moment of the first part is larger than the gravitational moment of the second part.

Description

Unpowered air deflector and air conditioner

Technical Field

The invention relates to the technical field of air conditioners, in particular to an unpowered air deflector and an air conditioner with the same.

Background

An air guide structure such as an air guide plate is generally arranged at an air outlet of the air conditioner so as to control the air outlet angle. The air deflector is usually driven to rotate by a motor, for example, when the air conditioner works, the air deflector is opened for supplying air, the opening angle of the air deflector can be adjusted to control the air quantity, and when the air conditioner is closed, the air deflector is required to be attractive and dustproof, and the air outlet is closed.

But the motor drives the air deflector to rotate, so that the control mode is complex, the structure is complex, and the power consumption of the air conditioner can be increased. In the prior art, the phase change material is adopted to realize different air supply angles in a refrigerating and heating mode. For example, in patent document 1, a solid-gas generating device and a transmission mechanism are used to form an air deflector rotation control device, wherein the transmission mechanism connects the solid-gas generating device and the air deflector, and substances in the solid-gas generating device can undergo phase change when the equipment is in a cooling or heating mode so as to change the volume in the solid-gas generating device, and the transmission mechanism drives the air deflector to rotate, thereby realizing automatic rotation of the air deflector of the air conditioner without a motor. Patent document 2 also discloses that the opening and closing of the damper are switched by thermal expansion and contraction of the temperature-sensitive liquid.

In addition, patent documents 3 and 4 disclose unpowered fresh air mechanisms, in which an air outlet of a fresh air treatment box is covered on an air inlet of a wall-mounted air conditioner, so that negative pressure generated when a fan of the air conditioner rotates is directly utilized as a power source when fresh air is replaced, energy consumption can be reduced, extra motor noise is not generated, and production cost of manufacturers is reduced.

In addition, as one of the prior arts of the unpowered air guiding structure, the unpowered unidirectional sealing air curtain structure disclosed in patent document 5 is that a soft silica gel air curtain is arranged in the middle or at the outlet of an air supply duct in a suspended structure, an air curtain frame which is inclined is arranged at the bottom opening of the air supply duct, when wind pressure exists, the air curtain is unidirectional opened along the wind direction, and when no wind pressure exists, the air curtain is reversely closed by pressing against the air curtain frame.

Prior art literature

Patent literature

Patent document 1: CN201920566300.4

Patent document 2: CN201520471725.9

Patent document 3: CN202021666611.7

Patent document 4: CN202021667059.3

Patent document 5: CN200820211440.1

Disclosure of Invention

Technical problem to be solved by the invention

Although the above prior art solves the technical problem that the air deflector needs to rotate under the drive of the motor, in patent documents 1 and 2, the opening and closing of the air deflector depend on the air outlet temperature, when the room temperature is close to the set temperature, the air supply temperature of the air conditioner also changes, even is equal to the room temperature, at the moment, the phase change material cannot realize phase change, and the opening and closing of the air deflector cannot reach expectations. In patent documents 3 and 4, only air supply is realized by utilizing negative pressure, and the air outlet is always open, so that the air outlet cannot be closed during shutdown, and the problems in aspects of attractive appearance, dust prevention and the like are also caused. In patent document 5, the air curtain is opened by wind pressure so as to be capable of discharging air upwards or transversely, and is reset by gravity when closed, but it cannot realize downward air supply, for example, an air guiding structure of a downward air supply mode of the current ceiling-mounted kitchen air conditioner cannot be used.

The invention aims to solve the technical problems and provide an unpowered air deflector and an air conditioner with the same, which are low in cost and simple in structure, can be closed when no air is sent, can send air downwards, and can save energy consumption.

The invention adopts the technical proposal that

The unpowered air deflector of the invention can freely rotate around a rotating shaft extending along the length direction of the unpowered air deflector, the unpowered air deflector is provided with a windward surface parallel to the length direction and the width direction of the unpowered air deflector, the unpowered air deflector is divided into a first part with a first width and a second part with a second width larger than the first width by the rotating shaft in the width direction, the total weight moment of the unpowered air deflector enables the unpowered air deflector to rotate around the rotating shaft to be closed, and wind moment acting on the windward surface overcomes the total weight moment to enable the unpowered air deflector to reversely rotate around the rotating shaft to be opened, and when the unpowered air deflector is in a closed state, the gravity moment of the first part is larger than that of the second part.

In the unpowered wind deflector of the present invention, preferably, a weight is provided in the first portion so that the gravitational moment of the first portion is larger than the gravitational moment of the second portion.

The unpowered air deflector of the present invention is preferably of hollow construction such that the gravitational moment of the first section is greater than the gravitational moment of the second section.

In the unpowered air deflector of the present invention, the unpowered air deflector is preferably uneven in thickness in the width direction so that the gravitational moment of the first portion is larger than the gravitational moment of the second portion.

The unpowered air deflector of the present invention preferably further has a limiting mechanism so that the unpowered air deflector is maintained at a preset closed position in the closed state and maintains a preset opening angle in the open state.

In the unpowered air deflector according to the present invention, preferably, the preset closed position is a horizontal position, and the unpowered air deflector rotates about the rotation axis in the open state so that the second portion moves downward with respect to the horizontal position and the first portion moves upward with respect to the horizontal position, thereby blowing downward with respect to the horizontal position in the closed state.

In the present invention, the predetermined closed position is preferably a tilted position tilted by a predetermined angle with respect to a horizontal position, and the unpowered air guide plate is preferably rotated about the rotation axis in the open state so that the second portion moves downward with respect to the tilted position and the first portion moves upward with respect to the tilted position, thereby blowing downward with respect to the tilted position in the closed state.

The unpowered air deflector of the present invention preferably includes a closed state limiting mechanism and an open state limiting mechanism, wherein the closed state limiting mechanism is a convex hull or a stop bar which is abutted against one end of the second portion, which is far away from the rotating shaft, when the unpowered air deflector reaches the closed position, and the open state limiting mechanism is a convex hull or a stop bar which is abutted against one end of the first portion, which is far away from the rotating shaft, when the unpowered air deflector reaches the preset opening angle.

In the unpowered air deflector of the present invention, the closed state limiting mechanism and the open state limiting mechanism are preferably provided on both sides of the unpowered air deflector in the longitudinal direction.

The unpowered air deflector of the invention preferably comprises a protrusion arranged on the rotating shaft, and the protrusion is clamped with a C-shaped groove structure in the rotating shaft to realize limiting.

The unpowered air deflector is preferably connected with a plurality of unpowered air deflectors through a connecting rod mechanism.

In the unpowered air deflector of the present invention, the link mechanism is preferably disposed on both sides of the unpowered air deflector in the longitudinal direction, and a rotation shaft of the link mechanism is preferably disposed near the rotation shaft.

In the unpowered wind deflector of the present invention, preferably, a damper is provided on the rotating shaft.

In the unpowered air deflector of the present invention, preferably, a torsion spring is provided on the rotation shaft, and the torque of the torsion spring rotates the unpowered air deflector in the closing direction.

The invention also provides an air conditioner which comprises any unpowered air deflector.

Effects of the invention

The unpowered air deflector and the air conditioner with the same are low in cost and simple in structure, can be closed when no air is supplied, can supply air downwards, and can save energy consumption.

Drawings

Fig. 1 is a schematic perspective view of the structure of an air conditioner indoor unit 1 according to the present embodiment.

Fig. 2 is a front view of the air outlet panel 30 of the air conditioner indoor unit 1.

Fig. 3 is a side view showing an opened and closed state of the wind deflector 313.

Fig. 4 is a schematic structural view of the air deflector 313 of embodiment 1.

Fig. 5 is a schematic view of the air deflector 313 of embodiment 1 in an open state.

Fig. 6 is a schematic structural view of the air deflector 313 of embodiment 1.

Fig. 7 is a front view of the air deflector 313 of embodiment 2.

Fig. 8 is an enlarged partial schematic view of the stopper mechanism 316 of the air deflector 313 of embodiment 2.

Fig. 9 is another partially enlarged schematic view of the stopper mechanism 316 of the air deflector 313 of embodiment 2.

Fig. 10 is a front view of the plurality of air deflection plates 313 of embodiment 3 connected by a link mechanism 317.

Fig. 11 is a side view of the plurality of air deflection plates 313 of embodiment 3 connected by a linkage 317.

Detailed Description

The invention will be described in detail below with reference to the drawings and the detailed description. The present embodiment is implemented on the premise of the technical scheme of the present invention, and a detailed embodiment and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

Spatially relative terms, such as "under," "below," "lower," "over," "upper," and the like, may be used herein for convenience of description to describe one element or feature's relationship to another element or feature as illustrated. It will be understood that spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "under" or "beneath" other elements or features would then be oriented "over" the other elements or features.

Unless otherwise defined, terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention pertains. The terms are to be understood to have meanings consistent with the context of the relevant art and are not to be construed as idealized or overly formal unless expressly so defined herein.

In the embodiment of the present invention, a ceiling type air conditioner for downward air blowing is described as an example, but the air guide plate of the present invention is not limited to the application of such an air conditioner, and is also suitable for being installed in an air blowing duct or an air outlet of other types of equipment.

Fig. 1 is a schematic perspective view of the structure of an air conditioner indoor unit 1 according to the present embodiment. The air conditioner indoor unit 1 is composed of a unit 10, an air duct 20 and an air outlet panel 30. The unit 10 includes components such as a condenser, an evaporator, and a heat exchanger, which are not shown, and the air sent from the unit 10 is redirected through the right-angle duct 20 and then sent downward from the air outlet panel 30. The air conditioner indoor unit 1 of the present embodiment is mounted on a ceiling in a suspended ceiling manner, and the air outlet panel 30 supplies air downward parallel to the ceiling. However, this is merely an example, and the air conditioner of the present invention is not limited to this type of installation, and is also applicable to a case of down-blowing air in a wall-mounted type or the like.

Fig. 2 is a front view of the air outlet panel 30 of the air conditioner indoor unit 1, that is, a view of the outer surface of the air outlet panel 30 viewed in the vertical direction. As shown in fig. 2, the air outlet panel 30 includes an air outlet frame 311, a plurality of rotating shafts 312, and a plurality of elongated air deflectors 313, and for simplicity of illustration, components such as inner air guiding blades and driving mechanisms are omitted for ease of understanding. The plurality of air deflectors 313 are rotatable about respective rotation shafts 312 to be opened and closed, and both ends of the rotation shafts 312 are fixed to the air outlet frame 311. For aesthetic purposes, only the air outlet frame 311 and the air guide plate 313 are visible in the front view of the air outlet panel 30, and the rotary shaft 312 is provided on the rear surface or inside of the air guide plate 313 and the air outlet frame 311, for example. The following coordinate system is defined in fig. 2: the direction perpendicular to the paper surface is referred to as the z direction (the gravity direction described later, i.e., the thickness direction of the air guide plate 313), the horizontal direction, i.e., the long side direction (longitudinal direction) of the air guide plate 313 is referred to as the x direction, and the direction perpendicular to the horizontal direction, i.e., the short side direction (width direction) of the air guide plate 313 is referred to as the y direction.

Fig. 3 is a side view of the air guide plate 313 in an opened and closed state, and is a view of the air guide plate 313 viewed on the x-axis direction side (for example, left side in the drawing) of fig. 2. The air deflector 313 drawn in solid lines is in a closed state, i.e., kept horizontal, so as to close the air outlet of the air outlet panel 30. When the air conditioner indoor unit 1 works and sends air, wind force acts on the windward side of the air deflector 313, and pushes the air deflector 313 to rotate around the rotating shaft 312, so that the air outlet is opened for air supply. When the air conditioner indoor unit 1 finishes the air supply, the air guide plate 313 returns to the original position, that is, the horizontal state. In the present embodiment, as shown in fig. 2, a direction in which the air guide plate 313 rotates clockwise around the rotation shaft 312 to open is referred to as an opening direction, and a direction in which the air guide plate 313 rotates counterclockwise around the rotation shaft 312 to close is referred to as a closing direction.

Next, an example of a specific structure of the wind deflector 313 of the present embodiment will be described.

Example 1]

[ Basic Structure of air deflector ]

Fig. 4 is a schematic structural view of the air deflector 313 of embodiment 1. Fig. 4 is a side view of the air deflector 313 in a closed state, that is, in a state in which the width direction is parallel to the y direction. The air guide plate 313 is composed of a main body portion 313A and a weight portion 313B, wherein the main body portion 313A is divided into left and right portions, i.e., a left side portion 313AL and a right side portion 313AR, with a position of the rotation shaft 312 being defined in a width direction of the air guide plate 313. As shown in fig. 4, the rotation shaft 312 is closer to one end (left end in the drawing) of the main body 313A than the widthwise central position of the main body 313A, i.e., the width of the left side 313AL is smaller than the width of the right side 313AR. A weight portion 313B such as an iron sheet is laminated on the left portion 313AL of the main body portion 313A. Here, for ease of understanding, the weight portion 313B is shown as having a shape with a certain thickness, but in practice, the weight portion 313B may be a thin sheet, the thickness of which is much smaller than that of the air guide plate, or may be partially or entirely embedded in the air guide plate 313, as long as the weight moment applied to the left side portion 313AL is greater than that applied to the right side portion 313AR. Here, for simplicity of explanation and illustration in the later stress analysis, the explanation will be given taking an example in which the weight portion 313B is laminated on the left side portion 313AL of the main body portion 313A, and the same applies to the case in which the weight portion 313B is fitted inside the air deflector 313.

In this embodiment, the width of the main body portion 313A of the air guide plate 313 is B, the weight of the main body portion 313A is D, the width of the left side portion 313AL, which is the distance from the rotary shaft 312 to the left end of the main body portion 313A, is bo, the width of the right side portion 313AL, which is the distance from the rotary shaft 312 to the right end of the main body portion 313A, is (B-bo), and the weight of the weight portion 313B is P.

[ One of the stress analyses of air deflector ]

The center of gravity position Op of the weight 313B is assumed to be located at the center of the left side 313AL (in this case, the actual center of gravity position Op of the weight 313B should be located at the center thereof, but since the thickness of the weight 313B is thin, the center of gravity position Op is shown at the center of the left side 313AL here for simplicity of explanation), that is, a moment arm (distance from the center of gravity position Op to the rotation axis 312) bp=bo/2 by gravity, a moment mp=p·g·bp=p·g·bo/2 by gravity acting on the weight 313B, and g is a gravitational acceleration (g=9.8 m/s ²).

Since the main body 313A is made of a material having a uniform mass, the center of gravity Od is also located at the center in the width direction, and the moment arm bd= (b/2-bo) due to gravity acts on the main body 313A, and the moment md=d·g·bd=d·g· (b/2-bo) due to gravity acts on the main body 313A.

When there is no wind force or no wind force on the windward side of the wind deflector 313, the weight portion 313B should have a larger weight moment Mp than the main body portion 313A so that the wind deflector 313 can return to the closed state from the open state, and therefore, at least the following relationship holds:

Mp＞Md

Namely, P > 2.D. (b/2-bo)/bo

Here, the ratio of the width bo of the rotation shaft 312 to the left end of the main body 313A to the total width b of the main body 313A is set to x% (=bo/b·100%), and the above relationship becomes P > 2·d· (50/x-1).

For example, when the rotation shaft 312 is located at 1/4 of one side of the body portion 313A in the width direction, that is, x% = 25%, the weight P of the weight portion 313B and the weight D of the body portion 313A should satisfy P > 2D. Of course, merely satisfying the weight relationship of P > 2D will cause the deflector 313 to rotate further to open again in the opposite direction after being rotated to the closed position, and for this purpose, the present invention also provides a stopper mechanism to prevent further rotation of the deflector in the closed state, as will be described later.

Fig. 5 is a side view of the air deflector 313 of embodiment 1 in an open state, that is, in a state rotated by an angle θ clockwise from the state of fig. 4. In the figure, the center of the wind force acting on the windward side of the wind deflector 313 is shown by a dashed line, and in this embodiment 1, the wind force center is located at the center of the main body portion 313A of the wind deflector 313.

As the air guide plate 313 opens, the angle θ becomes larger and the total moment M ' =mp ' +md ' = [ d·g· (B/2-bo) -p·g·bo/2] ·cos θ in the closing direction of the air guide plate 313 becomes smaller and smaller, so that the air moment acting on the windward side of the air guide plate 313 only needs to overcome the moment in the closing direction when the air guide plate 313 just opens, that is, the total moment m=mp+md=d·g· (B/2-bo) -p·g·bo/2 of the main body 313A and the weight 313B shown in fig. 4, so that the air guide plate 313 can be opened from the closed state. That is, when the wind deflector 313 is to be opened from the closed state to conduct wind guiding, the wind moment acting on the windward side may be larger than the sum M of the respective weight moments of the main body portion 313A and the weight portion 313B of the wind deflector 313 in the closed state, and after the wind deflector 313 is opened, the wind moment may be larger than or equal to the total weight moment M' of the wind deflector 313 in the opened state in order to maintain the opening angle θ of the wind deflector 313, except for a limit mechanism described later.

In the present embodiment, for example, when the rotation shaft 312 is located at 1/4 of one side of the main body portion 313A in the width direction, in order to satisfy the above formula P > 2D, the weight P of the weight portion 313B is set to 2.2 times the weight D of the main body portion 313A, that is, p=2.2d, wherein the weight D of the main body portion 313 a=47.2g, the weight P of the weight portion 313 b=104 g, and the length l=220 mm of the main body portion 313A and the width b=40 mm are set, and the wind pressure for opening the wind deflector 313 only needs 11 Pa.

In addition, although the case where the rotation shaft 312 is provided closer to the left end thereof with respect to the center of the main body portion 313A is shown here, the rotation shaft 312 may be provided closer to the right end thereof with respect to the center of the main body portion 313A, and at this time, the opening direction of the air deflector 313 becomes counterclockwise and the closing direction becomes clockwise.

[ Force analysis of air deflector two ]

In the above, it is assumed that the main body 313A and the weight 313B are both made of a material having a uniform thickness or mass, and the centers of gravity of the main body 313A and the weight 313B are each located at the center in the width direction, and when the main body 313A of the air guide 313 is, for example, a structure having a hollow one side or the center of gravity is not located at the center in the width direction due to the uneven thickness, the distance from the center of gravity Od of the main body 313A to the left end thereof is (bo+bd), and the weight moment md=d·g·bd acting on the main body 313A.

At this time, the weight 313B still assumes that the center of gravity Op is located at the center of the left side 313AL, and the weight moment mp=p·g·bp=p·g·bo/2 acting on the weight 313B.

Similarly, when no wind force acts on the windward side of the wind deflector 313, the weight portion 313B should have a larger weight moment Mp than the main body portion 313A so that the wind deflector 313 can return to the closed state from the open state, and therefore, at least the following relationship holds:

Mp＞Md

Namely, P > 2.D.bd/bo

At this time, the relationship described above becomes P > 2·d· (y/x-1) when the ratio of the width bo of the rotation shaft 312 to the left end of the main body 313A to the total width b of the main body 313A is set to x% (=bo/b·100%), and the ratio of the distance (bo+bd) from the center of gravity position Od of the main body 313A to the left end thereof to the total width b of the main body 313A is set to y% (= (bo+bd)/b·100%).

(Third of the stress analysis of the air deflector)

When the center of gravity Op of the weight portion 313B is not at the center thereof, that is, when the main body portion 313A and the weight portion 313B of the air guide plate 313 are both hollow on one side or the thickness is uneven, for example, and the center of gravity is not at the center in the width direction, at least the following relationship is satisfied, so that the air outlet can be properly closed when the air guide plate 313 returns to the closed state:

Md＝D·g·bd

Mp＝P·g·bp

Mp＞Md

Namely, P > D.bd/bp

The above-described relational expression becomes P > D · (y/x-1)/z% when the ratio of the width bo of the rotation shaft 312 to the left end of the main body 313A to the total width B of the main body 313A is set to x% (=bo/b·100%), the ratio of the distance (bo+bd) of the center of gravity position Od of the main body 313A to the left end thereof to the total width B of the main body 313A is set to y% (= (bo+bd)/b·100%), and the ratio of the distance bp of the center of gravity position Op of the weight 313B to the rotation shaft 312 to the width bo of the left side 313AL of the main body 313A, that is, the width bo of the rotation shaft 312 is set to z% (=bp/bo·100%).

In the above description of the force analysis, the case where the center of gravity position Op of the weight portion 313B is located at the center of the left side portion 313AL of the main body portion 313A and the center of gravity position Od of the main body portion 313A is also located at the center of the main body portion 313A, the case where the center of gravity position Op of the weight portion 313B is located at the center of the left side portion 313AL but the center of gravity position Od of the main body portion 313A is not located at the center of the main body portion 313A, and the case where the center of gravity position Op of the weight portion 313B and the center of gravity position Od of the main body portion 313A are not located at the center, respectively, may be cited, and the weight portion 313B may not be provided when the center of gravity position Od of the main body portion 313A is just located so that the air deflector 313 can be turned in the closing direction. For example, when the right side portion 313AR of the main body portion 313A has a hollow or porous structure or the thickness of the main body portion 313A is not uniform, the left side portion 313AL is heavier than the right side portion 313AR, and the center of gravity Od of the main body portion 313A is closer to the left end portion of the main body portion 313A than the rotation shaft 312, the air guide plate 313 can be rotated to the closed position by the gravity of the main body portion 313A without providing the weight portion 313B.

[ Limiting mechanism of air deflector ]

In order to reliably close the air outlet when the air guide plate 313 is not in the closed state, the air guide plate 313 of the embodiment 1 is further provided with a limiting mechanism so that the air guide plate can be properly returned to the closed state to close the air outlet after the air guide is completed and reach a preset angle when the air guide plate is in the open state.

Fig. 6 is a schematic structural view of an air deflector 313 of embodiment 1, in which stopper mechanisms 314 and 315 are added to the base 5 of the structure shown in fig. 3, and a counterweight 313B and the like are omitted.

As described above, in the air guide plate 313 of embodiment 1, the weight P of the weight portion 313B and the weight D of the main body portion 313A should satisfy P > D (B/2-bo)/bo (the case where the center of gravity of the weight portion 313B and the center of gravity of the main body portion 313A are located at the center in the width direction), the air guide plate 313 can return to the closed state from the open state

In the closed state, b is the width of the main body 313A of the air guide plate 313, and bo is the distance from the rotation axis 312 to the left end of the main body 0 a. But when the air deflector 313 is returned to the closed state, i.e. the width direction is parallel to the y-axis direction

Thereafter, due to imbalance of the gravitational moment of the weight portion 313B and the gravitational moment of the main body portion 313A, the air deflector 313 will continue to rotate counterclockwise about the rotation axis 312, i.e., the rotation angle θ becomes negative. In order to prevent this, as shown in fig. 6, embodiment 1 has the right end, i.e., the right side, of the air guide plate 313 in the closed state

A stopper mechanism 314 is provided at a position corresponding to the end of the portion 313AR to prevent the air deflector 313 from further rotating to be out of the closed state after the closing 5.

The limiting mechanism 314 may be a convex hull or a stop bar, and is disposed at a position opposite to the right end of the windward side of the air deflector 313 in the closed state, i.e. the limiting mechanism 314 is located on the rotation track of the right end of the air deflector 313 rotating around the rotation shaft 312, when the air deflector 313 is gradually closed and rotated to the closed position, i.e.

When the air guide plate 313 is in the closed position (horizontal position in this embodiment 1), the right end of the air guide plate 3130 touches the stopper mechanism 314, so that further rotation of the air guide plate 313 will be restricted by the stopper mechanism 314, so that the air guide plate 313 can be properly stopped at the closed position. The stopper 314 may be formed by, for example, a single convex hull or a single rib on both sides of the air guide plate 313 in the longitudinal direction, although not shown.

In order to allow the air guide plate 313 to perform air blowing at a design angle, that is, to perform air blowing while keeping the 5 rotation angle θ of the air guide plate 313 constant after reaching the design angle, the air guide of embodiment 1

As shown in fig. 6, the plate 313 is provided with a stopper 315 at a position corresponding to the left end of the air guide plate 313, i.e., the end of the left side 313AL when the rotation angle of the air guide plate 313 reaches the design angle, so as to prevent the air guide plate 313 from further rotating after reaching the design angle to affect the air supply angle.

The limiting mechanism 315 may be configured similarly to the limiting mechanism 314, and may be, for example, a convex hull or a rib disposed at a position opposite to the left end of the windward side of the air guide plate 313 opened to the design angle, that is, the limiting mechanism 315 is disposed on a rotation locus of the left end of the air guide plate 313 about the rotation axis 312, and when the rotation angle θ of the air guide plate 313 reaches the design angle (the maximum air supply angle in the embodiment 1), the left end of the air guide plate 313 touches the limiting mechanism 315 to limit further rotation of the air guide plate 315. The stopper 315 may be formed of, for example, a convex hull or a rib provided on both sides of the air guide plate 313 in the longitudinal direction, although not shown.

According to the air deflector 313 of this embodiment 1, by providing the weight portion 313B and the limiting mechanisms 314 and 315, the air deflector can be closed by using a heavy moment when no air is supplied, and the air deflector can be opened for air guiding only by a small wind pressure without motor driving when air is supplied, so that the air deflector has a simple structure and low cost, and can save energy consumption.

In the above embodiment 1, the example in which the air guide 313 is rotated in the clockwise direction to open the air guide 313 by taking the horizontal position as the closed position has been described, but the air guide of the present invention may be taken as the closed position by taking the position inclined with respect to the horizontal direction, that is, the present invention is not limited to the air guide provided in parallel with the ceiling, and is also applicable to the case in which the air guide is inclined with respect to the ceiling.

Example 2 ]

In embodiment 1, a case where convex hulls or ribs are provided as a stopper at the respective positions of the rotational trajectories at both ends of the air guide plate is described, and in embodiment 2, an example where stopper is provided on the rotational shafts at both sides in the longitudinal direction of the air guide plate will be described. The basic structure of the air deflector of embodiment 2 is the same as that of embodiment 1, and the difference between them is only the arrangement of the limiting mechanism.

Fig. 7 is a front view of the air guide plate 313 of example 2, and is a view showing one of the air guide plates 313 shown in fig. 2 after being enlarged. As shown in fig. 7, the rotation shaft 312 is provided at the rear surface of the air guide plate 313 or is penetrated therein such that the air guide plate 313 can rotate around the rotation shaft 312. The rotation shafts 312 on both sides in the longitudinal direction (x-axis direction in the drawing) of the air guide plate 313 are provided with stopper mechanisms 316. The stopper mechanism 316 may be, for example, a shutter or a stopper, and is configured to limit the rotation angle of the air deflector 313, for example, with reference to fig. 4 and 5, such that the rotation angle is maintained at 0 ° in the closed state and maintained at the design angle in the open state.

Fig. 8 is an enlarged partial schematic view of the stopper mechanism 316 of the air deflector 313 of embodiment 2. In fig. 8, an enlarged view of the stopper mechanism 316 at the rotation shaft 312 is shown by a chain line. The limiting mechanism 316 adopts a C-shaped groove to realize limiting, wherein the broken line small circle is of a hollow structure, the sector black block part is of a solid structure, and the concave C-shaped groove formed in this way is internally provided with a linear baffle 3161, so that the rotation angle of the air deflector 313 can be kept at 0 ° in the closed state and kept at the design angle in the open state.

The in-line baffle 3161 of fig. 8 may also be replaced with a semicircular baffle 3162, as shown in fig. 9.

Fig. 6 to 8 show the case where the stopper mechanisms 316 are provided on both sides in the longitudinal direction of the air guide plate 313, but the stopper mechanisms 316 may be provided on only one side, but from the viewpoint of stability, the stopper mechanisms 316 provided on both sides can make the operation of the air guide plate 313 more balanced and stable.

Example 3 ]

In the above embodiments 1 and 2, the case where the weight portion 313B, the stopper mechanisms 314 to 316, and the like are provided in the single air guide plate 313, and the air guide is closed in the closed state, and the air guide is performed in the open state at the design angle, respectively, and in this embodiment 3, the stability after the air guide plate 313 is opened is described.

Fig. 10 is a front view of the plurality of air deflectors 313 of the present embodiment 3 connected by a link mechanism 317. As shown in the figure, the plurality of air deflectors 313 are connected to each other by link mechanisms 317 provided on both sides in the longitudinal direction of the air deflectors 313, so that it is possible to avoid the variation in the operation of the different air deflectors 313, for example, the reduction in the air blowing efficiency due to the variation in the opening angle of the adjacent air deflectors 313.

Fig. 11 is a side view of the plurality of air deflection plates 313 of embodiment 3 connected by a link mechanism 317. As shown, the rotation shaft 317r in the link mechanism 317 is close to the rotation shaft 312 in the width direction of the air guide plate 313. According to the structure shown in fig. 10 and 11, the three air deflectors 313 are synchronously opened and closed by the action of the link mechanism 317.

Further, as shown in fig. 11, the rotation shaft 317r is close to the rotation shaft 312, and therefore, in the closing direction (counterclockwise direction in the drawing) of the air guide plate 313, the rotation shaft 317r may serve as a part of the weight, that is, as a part of the weight 313B, and may even completely replace the weight 313B.

In addition to the link mechanism 317 shown in fig. 10 and 11, a damper, a torsion spring, or the like may be added to the rotation shaft 312 to guide the air from the air guide plate 313 at a stable angle after opening.

In the case of adding a torsion spring to the rotation shaft 312, the torque generated by the torsion spring is directed in the closing direction of the air guide plate 313 (counterclockwise direction with reference to fig. 3), and thus the torsion spring can also serve as a part of the weight, and can even completely replace the weight portion 313B.

Industrial applicability

The unpowered air deflector can be suitable for various air conditioners, is particularly suitable for downward air supply air conditioners, has low cost and simple structure, can be closed when no air is supplied, can supply air downward, and can also save energy consumption.

Description of the reference numerals

1 Air conditioner indoor unit

10. Unit set

20. Air duct

30. Air outlet panel

311. Air outlet frame

312. Rotary shaft

313. Air deflector

313A main body part

313B weight portion

314. 315, 316 Spacing mechanism

317 Linkage.

Claims (16)

1. An unpowered air deflector capable of freely rotating about a rotation axis extending in a longitudinal direction of the unpowered air deflector, characterized in that,

The unpowered air deflector has a windward side parallel to the length direction and the width direction of the unpowered air deflector, the unpowered air deflector is divided into a first part with a first width and a second part with a second width larger than the first width by the rotating shaft in the width direction, the total weight moment of the unpowered air deflector enables the unpowered air deflector to rotate around the rotating shaft to be closed, the wind moment acting on the windward side overcomes the total weight moment to enable the unpowered air deflector to reversely rotate around the rotating shaft to be opened,

When the unpowered air deflector is in a closed state, the gravitational moment of the first portion is greater than the gravitational moment of the second portion.

2. The unpowered air deflector of claim 1,

A weight is provided on the first portion such that the first portion has a greater weight than the second portion.

3. The unpowered air deflection as set forth in claim 1 or 2, wherein,

The second portion is hollow such that the first portion has a greater weight than the second portion.

4. The unpowered air deflection as set forth in claim 1 or 2, wherein,

The unpowered air deflector has an uneven thickness in the width direction so that the gravitational moment of the first portion is greater than the gravitational moment of the second portion.

5. The unpowered air deflector of claim 3,

The unpowered air deflector has an uneven thickness in the width direction so that the gravitational moment of the first portion is greater than the gravitational moment of the second portion.

6. The unpowered air deflector of claim 1,

The air deflector is also provided with a limiting mechanism so that the unpowered air deflector is kept at a preset closed position in the closed state and kept at a preset opening angle in the open state.

7. The unpowered air deflector of claim 6,

The preset closing position is a horizontal position, and the unpowered air deflector rotates around the rotating shaft in the opening state in a mode that the second part moves downwards relative to the horizontal position and the first part moves upwards relative to the horizontal position, so that air is blown downwards relative to the horizontal position in the closing state.

8. The unpowered air deflector of claim 6,

The preset closing position is an inclined position inclined by a prescribed angle with respect to a horizontal position, and the unpowered air deflector rotates about the rotation axis in the open state in such a manner that the second portion moves downward with respect to the inclined position and the first portion moves upward with respect to the inclined position, thereby blowing downward with respect to the inclined position in the closed state.

9. The unpowered air deflector of claim 6,

The limiting mechanism comprises a closing state limiting mechanism and an opening state limiting mechanism, the closing state limiting mechanism is a convex hull or a stop bar which is abutted against one end, away from the rotating shaft, of the second part when the unpowered air deflector reaches the closing position, and the opening state limiting mechanism is a convex hull or a stop bar which is abutted against one end, away from the rotating shaft, of the first part when the unpowered air deflector reaches the preset opening angle.

10. The unpowered air deflector of claim 9,

The closed state limiting mechanism and the open state limiting mechanism are arranged on two sides of the unpowered air deflector in the length direction.

11. The unpowered air deflection as set forth in claim 6 or 9, wherein,

The limiting mechanism comprises a protrusion arranged on the rotating shaft, and the protrusion is clamped with a C-shaped groove structure in the rotating shaft to realize limiting.

12. The unpowered air deflector of claim 1,

The unpowered air deflectors are connected through a connecting rod mechanism.

13. The unpowered air deflector of claim 12,

The connecting rod mechanism is arranged on two sides of the unpowered air deflector in the length direction, and the rotating shaft of the connecting rod mechanism is arranged close to the rotating shaft.

14. The unpowered air deflection as set forth in claim 1 or 12, wherein,

A damper is provided on the rotation shaft.

15. The unpowered air deflection as set forth in claim 1 or 12, wherein,

And a torsion spring is arranged on the rotating shaft, and the torsion of the torsion spring enables the unpowered air deflector to rotate towards the closing direction.

16. An air conditioner is characterized in that,

Comprising an unpowered air deflector according to any one of claims 1 to 15.