Air supply device and air conditioner indoor unit

Abstract

The present invention provides an air supply device and an indoor unit of an air conditioner, wherein the air supply device comprises a housing, a first air guide plate and a second air guide plate, wherein the housing has an air supply port, the first air guide plate and the second air guide plate are both arranged at the air supply port, and the air supply device further comprises a transmission assembly and a driving member, wherein the transmission assembly is connected to the first air guide plate and the second air guide plate; the driving member is arranged in the housing, and the output shaft of the driving member is connected to the transmission assembly, so that the driving member drives the first air guide plate and / or the second air guide plate to open and guide the air through the transmission assembly. The air supply device of the present invention solves the problem of complex motion structure and high cost in the prior art that multiple driving members control the movement of the air guide plates to achieve up and down air discharge, which results in a complex motion structure and high cost.

Description

Technical Field

[0001] The present invention relates to the field of household appliances, and in particular to an air supply device and an indoor unit of an air conditioner. Background Art

[0002] At present, the wall-mounted air conditioner uses a single large air guide plate for reversing or double air guide plates for upward and downward air guide. However, the two air guide plates in the double air guide plates for upward and downward air guide are used to guide the air upward and downward synchronously, and each air guide plate is driven by a motor. Multiple motors are required to complete the movement of the air guide plates, which makes the movement structure complex and costly. Summary of the invention

[0003] The main purpose of the present invention is to provide an air supply device and an air conditioner indoor unit to solve the problem of complex motion structure and high cost caused by multiple driving parts controlling the movement of air guide plates to achieve upward and downward air discharge in the prior art.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided an air supply device, including a shell, a first air guide plate and a second air guide plate, the shell having an air supply port, the first air guide plate and the second air guide plate are both arranged at the air supply port, the air supply device also includes a transmission assembly and a driving member, the transmission assembly is connected to the first air guide plate and the second air guide plate; the driving member is arranged in the shell, and the output shaft of the driving member is connected to the transmission assembly, so that the driving member drives the first air guide plate and / or the second air guide plate to open through the transmission assembly to guide the air.

[0005] Furthermore, the air supply outlet includes a first opening portion and a second opening portion, the first air guide plate has a first open position in which the first opening portion is opened to guide the air out of the first opening portion upward, and a first closed position in which the first opening portion is closed; the second air guide plate has a second open position in which the second opening portion is opened to guide the air out of the second opening portion downward, and a second closed position in which the second opening portion is closed; when the output shaft rotates toward the first rotation direction, the transmission assembly drives the first air guide plate to move to the first open position and the second air guide plate is in the second closed position; when the output shaft rotates toward the second rotation direction, the transmission assembly drives the second air guide plate to move to the second open position and the first air guide plate is in the first closed position; wherein the first rotation direction and the second rotation direction are opposite.

[0006] Furthermore, the transmission assembly includes a connecting rod and a torsion spring connected to the connecting rod, the first end of the connecting rod is connected to the output shaft, the second end of the connecting rod is connected to the shell and is rotatably arranged relative to the shell; the first cantilever of the torsion spring is connected to the first air guide plate, and the second cantilever of the torsion spring is connected to the second air guide plate.

[0007] Further, the shell has a first limiting portion for stopping the first air guide plate so that the first air guide plate is in a first closed position, and the first limiting portion and the first cantilever are located on opposite sides of the first air guide plate; and / or, the shell has a second limiting portion for stopping the second air guide plate so that the second air guide plate is in a second closed position, and the second limiting portion and the second cantilever are located on opposite sides of the second air guide plate.

[0008] Furthermore, the middle connecting part of the torsion spring is sleeved on the connecting rod, the first end of the middle connecting part is connected to the first cantilever, and the second end of the middle connecting part is connected to the second cantilever; wherein the middle connecting part is welded or riveted to the connecting rod.

[0009] Further, a first connecting portion is provided on the first air guide plate, and the first cantilever is connected to the first connecting portion; and / or a second connecting portion is provided on the second air guide plate, and the second cantilever is connected to the second connecting portion.

[0010] Further, the first connecting portion has a first connecting hole; or, the first connecting portion and the first air guide plate form the first connecting hole; wherein the first cantilever is inserted into the first connecting hole.

[0011] Furthermore, there are multiple torsion springs, and the multiple torsion springs are arranged at intervals along the extending direction of the connecting rod.

[0012] Further, the connecting rod is inserted through the first air guide plate, and the first air guide plate is rotatably arranged relative to the connecting rod; and / or the connecting rod is inserted through the second air guide plate, and the second air guide plate is rotatably arranged relative to the connecting rod.

[0013] According to another aspect of the present invention, an air conditioner indoor unit is provided, comprising an air supply device, wherein the air supply device is the above-mentioned air supply device.

[0014] The air supply device of the present invention includes a shell, a first air guide plate, and a second air guide plate. The shell has an air supply port, and the first air guide plate and the second air guide plate are both arranged at the air supply port. The air supply device also includes a transmission assembly and a driving member. The driving member drives the first air guide plate and / or the second air guide plate to open through the transmission assembly, so that the first air guide plate and / or the second air guide plate guide the air out of the air supply port. The air supply device drives at least part of the movement of the transmission assembly only through a driving member, and then drives the first air guide plate and / or the second air guide plate to move and open through at least part of the transmission assembly, thereby guiding the air out of the air supply port, reducing the number of driving members, simplifying the structure of the driving mechanism, reducing production costs, reducing occupied space, and making the air supply device compact in design. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1 An exploded view of an embodiment of an air supply device according to the present invention is shown;

[0017] Figure 2 A schematic structural diagram of an embodiment of an air supply device according to the present invention is shown;

[0018] Figure 3 It shows a cross-sectional view of the air supply device according to the present invention when supplying air downward;

[0019] Figure 4 It shows a cross-sectional view of the air supply device according to the present invention when supplying air upward;

[0020] Figure 5 A first cross-sectional view of a first air guide plate, a second air guide plate and a transmission assembly of an air supply device according to the present invention is shown;

[0021] Figure 6 A schematic diagram showing the structure of a driving member of an air supply device according to the present invention is shown;

[0022] Figure 7 A schematic diagram showing the structure of the driving member and the transmission assembly of the air supply device according to the present invention is shown;

[0023] Figure 8 A schematic structural diagram of a first air guide plate, a second air guide plate, a driving member and a transmission assembly of an air supply device according to the present invention is shown;

[0024] Fig. 9 A second cross-sectional view of the first air guide plate, the second air guide plate and the transmission assembly of the air supply device according to the present invention is shown;

[0025] Fig.10 A third cross-sectional view of the first air guide plate, the second air guide plate and the transmission assembly of the air supply device according to the present invention is shown.

[0026] The above drawings include the following reference numerals:

[0027] 10. Shell; 11. Air outlet; 111. First opening; 112. Second opening; 20. First air guide plate; 60. Second air guide plate; 30. Transmission assembly; 31. Connecting rod; 32. Torsion spring; 321. First cantilever; 322. Second cantilever; 323. Middle connecting portion; 40. Driving member; 41. Output shaft; 42. Screw hole; 70. First connecting portion; 71. First connecting hole; 80. Second connecting portion; 81. Second connecting hole. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0030] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0031] The present invention provides an air supply device, please refer to Figures 1 to 10 , including a shell 10, a first air guide plate 20 and a second air guide plate 60, the shell 10 has an air supply port 11, the first air guide plate 20 and the second air guide plate 60 are both arranged at the air supply port 11, the air supply device also includes a transmission assembly 30 and a driving member 40, the transmission assembly 30 is connected to the first air guide plate 20 and the second air guide plate 60; the driving member 40 is arranged on the shell 10, and the output shaft 41 of the driving member 40 is connected to the transmission assembly 30, so that the driving member 40 drives the first air guide plate 20 and / or the second air guide plate 60 to open through the transmission assembly 30 to guide the air.

[0032] The air supply device of the present invention includes a housing 10, a first air guide plate 20, and a second air guide plate 60. The housing 10 has an air supply port 11, and the first air guide plate 20 and the second air guide plate 60 are both arranged at the air supply port 11. The air supply device also includes a transmission assembly 30 and a driving member 40. The driving member 40 drives the first air guide plate 20 and / or the second air guide plate 60 to open through the transmission assembly 30, so that the first air guide plate 20 and / or the second air guide plate 60 guide the air out of the air supply port 11. The air supply device drives at least part of the movement of the transmission assembly 30 only through a driving member 40, and then drives the first air guide plate 20 and / or the second air guide plate 60 to move and open through at least part of the transmission assembly 30, so as to guide the air out of the air supply port 11, thereby reducing the number of driving members, simplifying the structure of the driving mechanism, reducing the production cost, reducing the occupied space, and making the air supply device compact in design.

[0033] Specifically, the driving member 40 is a motor.

[0034] In the present embodiment, the air supply outlet 11 includes a first opening portion 111 and a second opening portion 112, and the first air guide plate 20 has a first open position in which the first opening portion 111 is opened to guide the air out of the first opening portion 111 upward, and a first closed position in which the first opening portion 111 is closed; the second air guide plate 60 has a second open position in which the second opening portion 112 is opened to guide the air out of the second opening portion 112 downward, and a second closed position in which the second opening portion 112 is closed; when the output shaft 41 rotates toward the first rotation direction, the transmission assembly 30 drives the first air guide plate 20 to move to the first open position and the second air guide plate 60 is in the second closed position; when the output shaft 41 rotates toward the second rotation direction, the transmission assembly 30 drives the second air guide plate 60 to move to the second open position and the first air guide plate 20 is in the first closed position; wherein the first rotation direction and the second rotation direction are opposite. Such an arrangement can realize upward and downward air supply of the air supply device. When the air supply device needs to supply air upward, the output shaft 41 of the driving member rotates toward the first rotation direction to open the first air guide plate 20, close the second air guide plate 60, and the air supply port 11 supplies air through the first opening portion 111 and the first air guide plate 20 guides the air upward, so that the air supply device supplies air upward; when the air supply device needs to supply air downward, the output shaft 41 of the driving member rotates toward the second rotation direction to close the first air guide plate 20, open the second air guide plate 60, and the air supply port 11 supplies air through the second opening portion 112 and the second air guide plate 60 guide the air downward, so that the air supply device supplies air downward.

[0035] Specifically, the first opening 111 is located above the second opening 112 .

[0036] In this embodiment, the transmission assembly 30 includes a connecting rod 31 and a torsion spring 32 connected to the connecting rod 31, wherein the first end of the connecting rod 31 is connected to the output shaft 41, and the second end of the connecting rod 31 is connected to the housing 10 and is rotatably arranged relative to the housing 10; the first cantilever 321 of the torsion spring 32 is connected to the first air guide plate 20, and the second cantilever 322 of the torsion spring 32 is connected to the second air guide plate 60. The torsion spring 32 is also called a torsion spring, that is, cantilevers extend from both ends of the rotation spring.

[0037] In this embodiment, the shell 10 has a first limiting portion for stopping the first air guide plate 20 so that the first air guide plate 20 is in the first closed position, and the first limiting portion and the first cantilever 321 are located on opposite sides of the first air guide plate 20; and / or, the shell 10 has a second limiting portion for stopping the second air guide plate 60 so that the second air guide plate 60 is in the second closed position, and the second limiting portion and the second cantilever 322 are located on opposite sides of the second air guide plate 60.

[0038] In specific implementation, the opening of the first air guide plate 20 and the second air guide plate 60 is achieved by the driving member 40 overcoming the force of the torsion spring 32. When the first air guide plate 20 and the second air guide plate 60 are closed, the first air guide plate 20 and the second air guide plate 60 remain in a closed state under the action of the torsion spring 32. When it is necessary to discharge air upward, the first air guide plate 20 is opened, and the second air guide plate 60 is in the second closed position; when it is necessary to discharge air downward, the second air guide plate 60 is opened, and the first air guide plate 20 is in the first closed position. When the air conditioner stops working, the driving member returns to the initial position, and the first air guide plate 20 and the second air guide plate 60 maintain the closed state of the air outlet 11 of the air conditioner under the action of the spring force of the torsion spring 32.

[0039] Specifically, when the output shaft 41 rotates toward the second rotation direction, the connecting rod 31 is driven to rotate along the second rotation direction, and the first limit portion stops the first air guide plate 20, so that the first air guide plate 20 is always in the first closed position. During this process, the first cantilever 321 and the second cantilever 322 of the torsion spring 32 are compressed, driving the second air guide plate 60 to open to guide the wind downward; when the output shaft 41 rotates toward the first rotation direction, the connecting rod 31 is driven to rotate along the first rotation direction, and the second limit portion stops the second air guide plate 60, so that the second air guide plate 60 is in the second closed position. During this process, the first cantilever 321 and the second cantilever 322 of the torsion spring 32 are compressed, driving the first air guide plate 20 to open to guide the wind upward. In addition, the torsion spring 32 provides a closing and fixing force for the first air guide plate 20 and the second air guide plate 60.

[0040] Specifically, a receiving hole is provided at the first end of the connecting rod 31, and a partial shaft section of the output shaft 41 is inserted into the receiving hole to achieve the connection between the connecting rod 31 and the output shaft 41; wherein the receiving hole is a flat hole or a polygonal hole.

[0041] Specifically, the driving member 40 controls the opening and closing of the first air guide plate and the second air guide plate; a screw hole 42 is provided on the driving member 40 , and the driving member 40 is fixed to the housing 10 by means of screws inserted into the screw hole 42 and the housing 10 .

[0042] Specifically, the housing 10 includes a panel body component, and the driving member 40 is fixed on the panel body component.

[0043] In this embodiment, the middle connection part 323 of the torsion spring 32 is sleeved on the connecting rod 31, the first end of the middle connection part 323 is connected to the first cantilever 321, and the second end of the middle connection part 323 is connected to the second cantilever 322; wherein the middle connection part 323 is welded or riveted to the connecting rod 31.

[0044] In this embodiment, a first connection portion 70 is provided on the first air guide plate 20, and the first cantilever 321 is connected to the first connection portion 70; and / or a second connection portion 80 is provided on the second air guide plate 60, and the second cantilever 322 is connected to the second connection portion 80.

[0045] Specifically, the first connection portion 70 has a first connection hole 71; or, the first connection portion 70 and the first air guide plate 20 form the first connection hole 71; wherein the first cantilever 321 is inserted into the first connection hole 71. Such a configuration facilitates the connection between the torsion spring 32 and the first air guide plate 20.

[0046] Specifically, the second connection portion 80 has a second connection hole 81; or, the second connection portion 80 and the second air guide plate 60 form a second connection hole 81; wherein the second cantilever 322 is inserted into the second connection hole 81. Such a configuration facilitates the connection between the torsion spring 32 and the second air guide plate 60.

[0047] In this embodiment, there are a plurality of torsion springs 32, and the plurality of torsion springs 32 are arranged at intervals along the extending direction of the connecting rod 31. Such an arrangement can ensure the reliability of the movement of the first air guide plate 20 and the second air guide plate 60.

[0048] In this embodiment, the connecting rod 31 is provided on the first air guide plate 20, and the first air guide plate 20 is rotatably provided relative to the connecting rod 31; and / or, the connecting rod 31 is provided on the second air guide plate 60, and the second air guide plate 60 is rotatably provided relative to the connecting rod 31. Such an arrangement ensures the reliability of the movement of the first air guide plate 20 and the second air guide plate 60.

[0049] Specifically, the first air guide plate 20 has a first connecting end and a first free end that are arranged opposite to each other, the first connecting end is provided with a first mounting hole, the connecting rod 31 is passed through the first mounting hole, and the connecting rod 31 is loosely matched with the first air guide plate 20 so that the first air guide plate 20 rotates around the connecting rod 31. When the connecting rod 31 rotates along the first rotation direction and the first cantilever 321 and the second cantilever 322 of the torsion spring 32 are compressed, the first air guide plate 20 is driven to rotate around the connecting rod 31 to realize the opening of the first air guide plate 20.

[0050] Specifically, the second air guide plate 60 has a second connecting end and a second free end that are arranged opposite to each other, the second connecting end is provided with a second mounting hole, the connecting rod 31 is passed through the second mounting hole, and the connecting rod 31 is loosely matched with the second air guide plate 60 so that the second air guide plate 60 rotates around the connecting rod 31. When the connecting rod 31 rotates along the second rotation direction and the first cantilever 321 and the second cantilever 322 of the torsion spring 32 are compressed, the second air guide plate 60 is driven to rotate around the connecting rod 31 so that the second air guide plate 60 is opened.

[0051] Specifically, the connecting rod 31 rotates around its axis, and the first air guide plate 20 and the second air guide plate 60 both rotate around the axis of the connecting rod 31 .

[0052] The present invention also provides an air conditioner indoor unit, please refer to Figures 1 to 10 , including an air supply device, wherein the air supply device is the air supply device in the above embodiment.

[0053] In specific implementation, when the air conditioner indoor unit is turned on, the first air guide plate 20 or the second air guide plate 60 is driven by the torsion spring 32 on the connecting rod 31 to rotate around the connecting rod 31 to achieve opening. When the air conditioner indoor unit is turned off, the first air guide plate 20 and the second air guide plate 60 are driven by the torsion spring 32 on the connecting rod 31 to rotate around the connecting rod 31 to achieve closing. When the air conditioner indoor unit needs to discharge air upward, the first air guide plate 20 is opened, and when the air conditioner indoor unit needs to discharge air downward, the second air guide plate 60 is opened. When the first air guide plate 20 and the second air guide plate 60 are completely closed, that is, the air conditioner indoor unit stops working, the driving member returns to the initial position at this time, and the first air guide plate 20 and the second air guide plate 60 remain in a tightly closed state under the action of the spring.

[0054] The present application provides a solution for realizing the upward and downward air outlet functions of an air conditioner with the least amount of motors and the smallest space. The present application splices the first air guide plate 20 and the second air guide plate 60 together through a connecting rod 31, and the first air guide plate 20 and the second air guide plate 60 can rotate around the connecting rod 31. A torsion spring 32 (the number of torsion springs ≥ 1) is designed on the connecting rod 31, and the cantilevers at both ends of the torsion spring 32 are respectively installed and fixed with the first air guide plate 20 and the second air guide plate 60. The closed state of the first air guide plate 20 and the second air guide plate 60 is the initial state of the torsion spring 32, and the air outlet 11 is ensured to be closed under the action of the spring. A motor is designed at one end of the connecting rod 31, and the motor drives the first air guide plate 20 and the second air guide plate 60 to open or close through the connecting rod. The upward or downward air outlet functions of the air conditioner are realized by opening and closing the first air guide plate 20 and the second air guide plate 60 respectively.

[0055] The technical problems solved by the present application are: solving the problem that a single motor cannot independently control two air guide plates to achieve up and down air outlet; solving the problem that traditional driving mechanisms require multiple motors to complete the opening and closing of the air guide plates; solving the problem that when the air guide plates are closed, the force of the motor is required to keep them in a closed state.

[0056] The beneficial effects of the present application are as follows: the single-motor drive design ensures that the drive mechanism does not occupy too much space of the air conditioner, so that the whole machine can be designed to be more compact and smaller, thereby taking up less space for installation of the whole machine and improving the user experience; the reduction in the number of motors simplifies the structure of the drive mechanism, further reducing the cost of the whole machine and making the production cost of the air conditioner more advantageous; the reduction in the number of motors makes the drive mechanism simpler and after-sales maintenance simpler, which is equivalent to reducing the invisible cost of after-sales maintenance; the air outlet of the air conditioner is controlled up and down by opening and closing the first air guide plate 20 and the second air guide plate 60, which is simple to implement and can be intuitively felt by users, thus highlighting the selling point of the air conditioner.

[0057] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0058] The air supply device of the present invention includes a housing 10, a first air guide plate 20, and a second air guide plate 60. The housing 10 has an air supply port 11, and the first air guide plate 20 and the second air guide plate 60 are both arranged at the air supply port 11. The air supply device also includes a transmission assembly 30 and a driving member 40. The driving member 40 drives the first air guide plate 20 and / or the second air guide plate 60 to open through the transmission assembly 30, so that the first air guide plate 20 and / or the second air guide plate 60 guide the air out of the air supply port 11. The air supply device drives at least part of the movement of the transmission assembly 30 only through a driving member 40, and then drives the first air guide plate 20 and / or the second air guide plate 60 to move and open through at least part of the transmission assembly 30, so as to guide the air out of the air supply port 11, thereby reducing the number of driving members, simplifying the structure of the driving mechanism, reducing the production cost, reducing the occupied space, and making the air supply device compact in design.

[0059] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0060] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An air supply device, comprising a housing (10), a first air guide plate (20) and a second air guide plate (60), wherein the housing (10) has an air supply port (11), and the first air guide plate (20) and the second air guide plate (60) are both arranged at the air supply port (11), characterized in that: The air supply device further comprises a transmission assembly (30) and a driving member (40), wherein the transmission assembly (30) is connected to both the first air guide plate (20) and the second air guide plate (60); The driving member (40) is disposed on the housing (10), and an output shaft (41) of the driving member (40) is connected to the transmission assembly (30), so that the driving member (40) drives the first air guide plate (20) and / or the second air guide plate (60) to open and guide air through the transmission assembly (30); The air supply port (11) comprises a first opening portion (111) and a second opening portion (112); the first air guide plate (20) has a first open position for opening the first opening portion (111) to guide the air outflow from the first opening portion (111) upwards and a first closed position for closing the first opening portion (111); the second air guide plate (60) has a second open position for opening the second opening portion (112) to guide the air outflow from the second opening portion (112) downwards and a second closed position for closing the second opening portion (112); When the output shaft (41) rotates toward the first rotation direction, the transmission assembly (30) drives the first air guide plate (20) to move to the first open position and the second air guide plate (60) is in the second closed position; when the output shaft (41) rotates toward the second rotation direction, the transmission assembly (30) drives the second air guide plate (60) to move to the second open position and the first air guide plate (20) is in the first closed position; wherein the first rotation direction and the second rotation direction are opposite; The transmission assembly (30) comprises a connecting rod (31) and a torsion spring (32) connected to the connecting rod (31), wherein a first end of the connecting rod (31) is connected to the output shaft (41), and a second end of the connecting rod (31) is connected to the housing (10) and is rotatably arranged relative to the housing (10); The first cantilever (321) of the torsion spring (32) is connected to the first air guide plate (20), and the second cantilever (322) of the torsion spring (32) is connected to the second air guide plate (60).

2. The air supply device according to claim 1, characterized in that: The housing (10) has a first limiting portion for stopping the first air guide plate (20) so that the first air guide plate (20) is in the first closed position, the first limiting portion and the first cantilever (321) being located on two opposite sides of the first air guide plate (20); and / or The housing (10) has a second limiting portion for stopping the second air guide plate (60) so that the second air guide plate (60) is in the second closed position, and the second limiting portion and the second cantilever (322) are located on opposite sides of the second air guide plate (60).

3. The air supply device according to claim 1, characterized in that: The middle connecting portion (323) of the torsion spring (32) is sleeved on the connecting rod (31), the first end of the middle connecting portion (323) is connected to the first cantilever (321), and the second end of the middle connecting portion (323) is connected to the second cantilever (322); wherein the middle connecting portion (323) and the connecting rod (31) are welded or riveted.

4. The air supply device according to claim 1, characterized in that: The first air guide plate (20) is provided with a first connecting portion (70), and the first cantilever (321) is connected to the first connecting portion (70); and / or The second air guide plate (60) is provided with a second connecting portion (80), and the second cantilever (322) is connected to the second connecting portion (80).

5. The air supply device according to claim 4, characterized in that: The first connecting portion (70) has a first connecting hole (71); or the first connecting portion (70) and the first air guide plate (20) form the first connecting hole (71); wherein the first cantilever (321) is inserted into the first connecting hole (71).

6. The air supply device according to claim 1, characterized in that: There are a plurality of torsion springs (32), and the plurality of torsion springs (32) are arranged at intervals along the extending direction of the connecting rod (31).

7. The air supply device according to claim 1, characterized in that: The connecting rod (31) is passed through the first air guide plate (20), and the first air guide plate (20) is rotatably arranged relative to the connecting rod (31); and / or The connecting rod (31) is passed through the second air guide plate (60), and the second air guide plate (60) is rotatably arranged relative to the connecting rod (31).

8. An air conditioner indoor unit, comprising an air supply device, characterized in that: The air supply device is the air supply device according to any one of claims 1 to 7.

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