Cross-flow vane, cross-flow fan blade and air conditioner

Abstract

The embodiment of the application provides a cross-flow blade, a cross-flow fan blade and an air conditioner, and belongs to the technical field of air conditioners. The cross-flow blade comprises a first blade, a second blade and a magnetic adsorption assembly. The first blade is in sliding connection with the second blade. The second blade can slide relative to the first blade to adjust the inlet and outlet angle of the cross-flow fan blade. The magnetic adsorption assembly is installed on the first blade and / or the second blade, and the magnetic adsorption assembly can reset the second blade after sliding. By sliding the first blade and the second blade, the second blade can slide relative to the first blade under the action of centrifugal force when the cross-flow fan blade is running, so that the sweeping area of the cross-flow blade can be increased, the sweeping efficiency of the cross-flow blade can be improved, and the inlet and outlet angle of the cross-flow blade can be changed. The magnetic adsorption assembly is arranged on the first blade and / or the second blade, so that the second blade can be reset after sliding, and the second blade can slide and reset reciprocally.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, in particular to a cross-flow vane, a cross-flow fan blade and an air conditioner. BACKGROUND

[0002] The cross-flow fan is also called a cross-flow fan, and the cross-flow fan blade is mostly a multi-leaf type, a long cylindrical shape, and has a forward multi-wing blade. When the cross-flow fan blade rotates, the airflow enters the blade row from the open part of the cross-flow fan blade, passes through the inside of the impeller, and is discharged into the volute from the other blade row, forming a working airflow.

[0003] The existing cross-flow vane is installed in a fixed manner on a mounting rack, and after the cross-flow vane is installed on the mounting rack, the installation angle, the blade sweeping area and other parameters of the cross-flow vane remain unchanged, and cannot be adjusted again, which makes it difficult for the cross-flow fan blade to change the inlet and outlet angles, increase the blade sweeping area and other functions, and cannot well play the performance efficiency of the cross-flow vane structure. SUMMARY

[0004] The problem solved by the present application is that the existing cross-flow vane is installed in a fixed manner on a mounting rack, and after the cross-flow vane is installed on the mounting rack, the installation angle, the blade sweeping area and other parameters of the cross-flow vane remain unchanged, and cannot be adjusted again, which makes it difficult for the cross-flow fan blade to change the inlet and outlet angles, increase the blade sweeping area and other functions, and cannot well play the performance efficiency of the cross-flow vane structure.

[0005] To solve the above problems, the present application provides a cross-flow vane, a cross-flow fan blade and an air conditioner, which can adjust the cross-flow vane during operation, change the inlet and outlet angles of the cross-flow fan blade during operation of the cross-flow fan blade, and thus improve the working performance of the cross-flow fan blade.

[0006] In a first aspect, the present application provides a cross-flow vane applied to a cross-flow fan blade, comprising a first vane, a second vane and a magnetic adsorption assembly, the first vane is slidably connected with the second vane, the second vane can slide relative to the first vane to adjust the inlet and outlet angles of the cross-flow fan blade, and the magnetic adsorption assembly is installed on the first vane and / or the second vane, and the magnetic adsorption assembly can reset the second vane after sliding.

[0007] The first blade and the second blade are connected in sliding mode, and the second blade can slide relative to the first blade under the action of centrifugal force when the cross-flow fan blade is in operation, so that the cross-flow blade can increase the wind sweeping area and improve the performance and efficiency of the cross-flow blade. Meanwhile, the second blade can change the inlet and outlet angles of the cross-flow blade according to different loads in the actual working condition, so that the second blade can be adjusted to the position point suitable for the corresponding working condition, the load distribution is automatically balanced, and the operation efficiency of the cross-flow blade structure is improved. The magnetic adsorption assembly is arranged on the first blade and / or the second blade, so that the second blade can be reset after sliding, and the second blade can slide and reset reciprocally.

[0008] In an optional embodiment, the magnetic adsorption assembly comprises a first magnetic member and a second magnetic member arranged oppositely, the first magnetic member is arranged on the first blade, the second magnetic member is arranged on the second blade, and the first magnetic member and the second magnetic member can be adsorbed to each other. The first magnetic member is arranged on the first blade, and the second magnetic member is arranged on the second blade, so that the reset of the second blade can be better realized.

[0009] In an optional embodiment, the first magnetic member and the second magnetic member are both permanent magnets, and the end of the first magnetic member close to the second magnetic member is opposite to the end of the second magnetic member close to the first magnetic member in magnetic pole. The first magnetic member and the second magnetic member are both arranged as permanent magnets, and the two permanent magnets can be adsorbed to each other, so that the reset of the second blade can be more beneficial.

[0010] In an optional embodiment, the first blade is provided with a sliding groove, the second blade is provided with a sliding block, the sliding block is inserted into the sliding groove, and the sliding block can slide relative to the groove wall of the sliding groove; or the first blade is provided with a sliding block, the second blade is provided with a sliding groove, the sliding block is inserted into the sliding groove, and the sliding block can slide relative to the groove wall of the sliding groove. The sliding groove and the sliding block are arranged, so that the sliding of the second blade relative to the first blade can be better realized, and the noise of the sliding and reset of the second blade can also be improved.

[0011] In an optional embodiment, the sliding groove gradually decreases towards the opening direction, the sliding block has a mounting wall, the mounting wall is mounted on the first blade or the second blade, the sliding block gradually increases away from the mounting wall, and the sliding block is gap-fitted in the sliding groove. The sliding groove gradually decreases towards the opening direction, and the sliding block gradually increases away from the mounting wall, so that the second blade can be prevented from separating from the first blade after sliding, and the noise of the sliding and reset of the second blade can also be improved.

[0012] In an optional embodiment, the sliding groove comprises a first groove wall, a second groove wall and a third groove wall connected in sequence, the first groove wall and the third groove wall are oppositely arranged, and an end of the first groove wall away from the second groove wall extends towards the third groove wall, and an end of the third groove wall away from the second groove wall extends towards the first groove wall; the sliding block further comprises a first side wall, a second side wall and a third side wall connected in sequence, the first side wall and the third side wall are oppositely arranged, and the end of the first side wall and the third side wall are respectively connected with the mounting wall, the second side wall is oppositely arranged with the mounting wall, and an end of the first side wall away from the mounting wall extends away from the third side wall, and an end of the third side wall away from the mounting wall extends away from the first groove wall; the first groove wall is oppositely arranged with the first side wall, the second groove wall is oppositely arranged with the second side wall, and the second side wall is oppositely arranged with the third side wall.

[0013] In the present application, the end of the first groove wall away from the second groove wall extends towards the third groove wall, the end of the third groove wall away from the second groove wall extends towards the first groove wall, the end of the first side wall away from the mounting wall extends away from the third side wall, and the end of the third side wall away from the mounting wall extends away from the first groove wall, so that when the second blade slides, the first groove wall cooperates with the first side wall, and the third groove wall cooperates with the third side wall to prevent the second blade from separating from the first blade. At the same time, the cooperation of the first groove wall with the second groove wall and the cooperation of the third groove wall with the third side wall can also improve the noise when the second blade slides and resets.

[0014] In an optional embodiment, a gap is arranged between the sliding block and the sliding groove, the gap is used for the sliding of the sliding block relative to the sliding groove, and the value range of the gap is 0.04mm-0.06mm. In the present application, the value range of the gap is set to 0.04mm-0.06mm, which can ensure that the sliding block can slide relative to the sliding groove, and also can ensure the structural performance of the first blade and the second blade, so that the structure of the first blade and the second blade can be prevented from breaking.

[0015] In an optional embodiment, the sliding distance of the second blade relative to the first blade is 0.35mm-0.5mm. In the present application, the value range of the sliding distance of the second blade is set to 0.35mm-0.5mm, which can ensure that the second blade can efficiently respond to the working condition of the cross-flow fan blade 300.

[0016] In a second aspect, the present application provides a cross-flow fan blade, comprising a support frame and a plurality of cross-flow blades as described in any one of the preceding embodiments, and the first blade of the plurality of cross-flow blades is mounted on the support frame.

[0017] The cross-flow fan blade provided by the application is connected by sliding the first blade and the second blade, and the second blade can slide relative to the first blade under the action of centrifugal force when the cross-flow fan blade is running, so that the wind sweeping area of the cross-flow blade can be increased, and the performance and efficiency of the cross-flow blade can be improved. Meanwhile, the second blade can change the inlet and outlet angles of the cross-flow blade according to different loads in actual working conditions, so that the second blade is adjusted to the position point suitable for the corresponding working condition, the load distribution is automatically balanced, and the operation efficiency of the cross-flow blade structure is improved. The magnetic adsorption assembly is arranged on the first blade and / or the second blade, so that the second blade can be reset after sliding, and the second blade can slide and reset reciprocally.

[0018] In a third aspect, the application provides an air conditioner comprising the cross-flow fan blade described in the foregoing embodiments.

[0019] The air conditioner provided by the application is connected by sliding the first blade and the second blade, and the second blade can slide relative to the first blade under the action of centrifugal force when the cross-flow fan blade is running, so that the wind sweeping area of the cross-flow blade can be increased, and the performance and efficiency of the cross-flow blade can be improved. Meanwhile, the second blade can change the inlet and outlet angles of the cross-flow blade according to different loads in actual working conditions, so that the second blade is adjusted to the position point suitable for the corresponding working condition, the load distribution is automatically balanced, and the operation efficiency of the cross-flow blade structure is improved. The magnetic adsorption assembly is arranged on the first blade and / or the second blade, so that the second blade can be reset after sliding, and the second blade can slide and reset reciprocally. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 A structural schematic diagram of a cross-flow fan blade provided by an embodiment of the application is shown in the figure.

[0021] Figure 2 A structural schematic diagram of a cross-flow blade provided by an embodiment of the application is shown in the figure.

[0022] Figure 3 A structural schematic diagram of a first blade of a cross-flow blade provided by an embodiment of the application is shown in the figure.

[0023] Figure 4 A structural schematic diagram of a second blade of a cross-flow blade provided by an embodiment of the application is shown in the figure.

[0024] The figure legend is as follows: 100-cross-flow blade; 110-first blade; 111-sliding groove; 113-first groove wall; 115-second groove wall; 117-third groove wall; 130-second blade; 131-sliding block; 133-mounting wall; 135-first side wall; 137-second side wall; 139-third side wall; 140-gap; 150-magnetic adsorption assembly; 151-first magnetic part; 153-second magnetic part; 300-cross-flow fan blade; 310-support frame. DETAILED DESCRIPTION

[0025] The existing through-flow blades are fixedly installed on the mounting frame, and after the through-flow blades are installed on the mounting frame, the installation angle of the through-flow blades, the blade wind-swept area and other parameters remain unchanged, and cannot be adjusted again, so that the through-flow fan blades cannot realize the functions of changing the inlet and outlet angle, increasing the blade wind-swept area and the like, and the performance efficiency of the through-flow blade structure cannot be well played.

[0026] To solve the above problems, the embodiment of the present application provides a through-flow blade, a through-flow fan blade and an air conditioner, which can adjust the through-flow blade during operation, realize the change of the inlet and outlet angle of the through-flow fan blade during operation of the through-flow fan blade, and thus improve the working performance of the through-flow fan blade.

[0027] To make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings.

[0028] Please refer to Figure 1 The embodiment provides an air conditioner. The air conditioner comprises a through-flow fan, which is used for air supply to change the temperature, humidity and the like in a building or structure.

[0029] Specifically, the through-flow fan blade 300 is installed on an indoor unit of the air conditioner. The through-flow fan blade 300 can be driven to rotate by a motor of the indoor unit. The indoor unit can be a wall-mounted indoor unit or a cabinet-type indoor unit.

[0030] In the embodiment, the through-flow fan blade 300 comprises a support frame 310 and a plurality of through-flow blades 100, and the plurality of through-flow blades 100 are installed in a circular array on the support frame 310.

[0031] Please refer to Figure 1 and Figure 2 In the embodiment, the through-flow blade 100 comprises a first blade 110, a second blade 130 and a magnetic adsorption assembly 150. The first blade 110 is in sliding connection with the second blade 130, and the first blade 110 is arranged on the mounting frame. The second blade 130 can slide relative to the first blade 110 to adjust the inlet and outlet angle of the through-flow fan blade 300. The magnetic adsorption assembly 150 is arranged on the first blade 110 and the second blade 130, and the magnetic adsorption assembly 150 can reset the second blade 130 after sliding.

[0032] The first blade 110 and the second blade 130 are connected in sliding mode, and when the cross-flow fan blade 300 is running, the second blade 130 can slide relative to the first blade 110 under the action of centrifugal force, so that the cross-flow blade 100 can increase the wind sweeping area and improve the performance and efficiency of the cross-flow blade 100. At the same time, the second blade 130 can change the inlet and outlet angle of the cross-flow blade 100 according to different loads in the actual working condition, so that the second blade 130 is adjusted to the position point suitable for the corresponding working condition, the load distribution is automatically balanced, and the running efficiency of the cross-flow blade 100 structure is improved. The magnetic adsorption assembly 150 is arranged on the first blade 110 and / or the second blade 130, so that the second blade 130 can slide and reset, and the second blade 130 can slide and reset reciprocally.

[0033] In the embodiment, the magnetic adsorption assembly 150 includes a first magnetic member 151 and a second magnetic member 153 arranged oppositely, the first magnetic member 151 is arranged on the first blade 110, and the second magnetic member 153 is arranged on the second blade 130. The first magnetic member 151 and the second magnetic member 153 can be adsorbed to each other. The first magnetic member 151 is arranged on the first blade 110, and the second magnetic member 153 is arranged on the second blade 130, so that the reset of the second blade 130 can be better realized.

[0034] In the embodiment, the first magnetic member 151 and the second magnetic member 153 are both permanent magnets, and the end of the first magnetic member 151 close to the second magnetic member 153 is opposite to the end of the second magnetic member 153 close to the first magnetic member 151 in magnetic pole. The first magnetic member 151 and the second magnetic member 153 are both arranged as permanent magnets, and the magnetic field of the two permanent magnets is superimposed to have stronger adsorption, so that the reset of the second blade 130 can be more facilitated.

[0035] In some other embodiments of the application, one of the first magnetic member 151 and the second magnetic member 153 is a permanent magnet, and the other can be a matching member made of ferromagnetic material, which can be made of iron, cobalt, nickel, etc. One of the permanent magnet and the matching member can be installed on the first blade 110, and the other is installed on the second blade 130, so as to realize mutual attraction to reset the second blade 130 after sliding.

[0036] It should be noted that ferromagnetism refers to the phenomenon that the magnetic moments of adjacent atoms or ions in a substance are arranged in the same direction in some regions due to their interaction, and when the applied magnetic field strength increases, the degree of directional arrangement of the combined magnetic moment of these regions will increase to a certain limit value. The existing ferromagnetic materials include iron, cobalt, nickel and their combinations.

[0037] In some embodiments of the present application, the first magnetic member 151 and the second magnetic member 153 can also be electromagnets, or one of them is an electromagnet and the other is a permanent magnet. By applying current to the coil of the electromagnet to generate a magnetic field to attract the second blade 130 to reset, when hot, the current applied to the electromagnet can also be changed in direction as needed to make the first magnetic member 151 and the second magnetic member 153 attract or repel each other, and when the first magnetic member 151 and the second magnetic member 153 repel each other, it can assist the second blade 130 to slide, and when the first magnetic member 151 and the second magnetic member 153 attract each other, it can assist the second blade 130 to reset, so that by controlling the direction and size of the current applied to the electromagnet, the sliding and resetting of the second blade 130 can be better achieved.

[0038] In the present embodiment, the first blade 110 is provided with a sliding groove 111, which is arranged on the side wall of the first blade 110 in the height direction, and the side wall is connected with the air sweeping surface of the first blade 110. The second blade 130 is provided with a sliding block 131, which is arranged on the side wall of the second blade 130 in the height direction, and the side wall is connected with the air sweeping surface of the second blade 130. The sliding block 131 is inserted into the sliding groove 111, and the sliding block 131 can slide relative to the groove wall of the sliding groove 111. By arranging the sliding groove 111 and the sliding block 131, the sliding of the second blade 130 relative to the first blade 110 can be better achieved, and at the same time, the noise of the sliding and resetting of the second blade 130 can be improved.

[0039] Of course, in some other embodiments of the present application, the first blade 110 is provided with a sliding block 131, and the second blade 130 is provided with a sliding groove 111, and the sliding block 131 is inserted into the sliding groove 111, and the sliding block 131 can slide relative to the groove wall of the sliding groove 111.

[0040] In the present embodiment, the sliding groove 111 gradually narrows towards the opening direction, and the sliding block 131 has a mounting wall 133, and the sliding block 131 is mounted on the second blade 130 through the mounting wall 133. The sliding block 131 gradually increases in the direction away from the mounting wall 133. The sliding block 131 clearance 140 is fitted in the sliding groove 111. By gradually reducing the sliding groove 111 towards the opening direction, and gradually increasing the sliding block 131 in the direction away from the mounting wall 133, the second blade 130 can be prevented from being separated from the first blade 110 after sliding, and the noise of the sliding and resetting of the second blade 130 can be improved.

[0041] Please refer to Figure 2 , Figure 3 and Figure 4In the embodiment, the sliding groove 111 comprises a first groove wall 113, a second groove wall 115 and a third groove wall 117 connected in sequence. The first groove wall 113 and the third groove wall 117 are oppositely arranged, and the end of the first groove wall 113 away from the second groove wall 115 extends towards the third groove wall 117, and the end of the third groove wall 117 away from the second groove wall 115 extends towards the first groove wall 113, so that the cross section of the sliding groove 111 is isosceles trapezoidal. The sliding groove 111 is arranged along the height direction of the first blade 110 and penetrates both ends of the first blade 110. The sliding block 131 also comprises a first side wall 135, a second side wall 137 and a third side wall 139 connected in sequence, the first side wall 135 and the third side wall 139 are oppositely arranged, and the ends of the first side wall 135 and the third side wall 139 are connected with the mounting wall 133 respectively, the second side wall 137 is oppositely arranged with the mounting wall 133, and the end of the first side wall 135 away from the mounting wall 133 extends away from the third side wall 139. The end of the third side wall 139 away from the mounting wall 133 extends away from the first groove wall 113. That is, the cross section of the sliding block 131 is isosceles trapezoidal. The first groove wall 113 is oppositely arranged with the first side wall 135, the second groove wall 115 is oppositely arranged with the second side wall 137, and the second side wall 137 is oppositely arranged with the third side wall 139.

[0042] The present application can prevent the second blade 130 from being separated from the first blade 110 by extending the end of the first groove wall 113 away from the second groove wall 115 towards the third groove wall 117, extending the end of the third groove wall 117 away from the second groove wall 115 towards the first groove wall 113, extending the end of the first side wall 135 away from the mounting wall 133 towards the third side wall 139, and extending the end of the third side wall 139 away from the mounting wall 133 towards the first groove wall 113 when the second blade 130 slides. At the same time, the cooperation of the first groove wall 113 and the second groove wall 115 and the cooperation of the third groove wall 117 and the third side wall 139 can also improve the noise when the second blade 130 slides and resets.

[0043] It can be understood that in some other embodiments of the present application, the cross section of the sliding groove 111 and the sliding block 131 can also be a right trapezoid or an isosceles trapezoid.

[0044] Please continue to refer to Figure 2In the embodiment, a gap 140 is arranged between the sliding block 131 and the sliding groove 111, the gap 140 is used for sliding of the sliding block 131 relative to the sliding groove 111, and the value range A of the gap 140 is 0.04mm-0.06mm. The value range of the gap 140 is set to 0.04mm-0.06mm in the application. The structure performance of the first blade 110 and the second blade 130 can be guaranteed on the premise that the sliding block 131 can slide relative to the sliding groove 111, so that the structure fracture of the first blade 110 and the second blade 130 can be avoided.

[0045] Specifically, when the second side wall 137 and the second groove wall 115 abut, the gap 140 is arranged between the first groove wall 113 and the first side wall 135 and between the third groove wall 117 and the third side wall 139, that is, the sliding block 131 is slightly larger than the sliding groove 111, so that the second blade 130 can slide relative to the first blade 110 while the second blade 130 is not separated from the sliding groove 111.

[0046] In the embodiment, the value range B of the sliding distance of the second blade 130 relative to the first blade 110 is 0.35mm-0.5mm. The value range of the sliding distance of the second blade 130 is set to 0.35mm-0.5mm, so that the second blade 130 can efficiently respond to the working condition of the cross-flow fan blade 300.

[0047] In the embodiment, the first magnetic member 151 is installed on the end face of the first blade 110, the second magnetic member 153 is installed on the end face of the second blade 130, and the number of the first magnetic member 151 and the second magnetic member 153 can be set according to actual needs. Of course, in some other embodiments of the application, the first magnetic member 151 can be installed on the second groove wall 115, and the second magnetic member 153 is installed on the second magnetic wall. It can be understood that the installation positions of the first magnetic member 151 and the second magnetic member 153 are not limited in the embodiment, as long as one is installed on the first blade 110 and the other is installed on the second blade 130, and the specific installation position can be adjusted according to specific needs.

[0048] The working principle and beneficial effects of the cross-flow blade 100, the cross-flow fan blade 300 and the air conditioner provided by the embodiment of the application include:

[0049] The first blade 110 and the second blade 130 are connected in sliding mode, and the second blade 130 can slide relative to the first blade 110 under the action of centrifugal force when the cross-flow fan blade 300 is running, so that the sweeping area of the cross-flow fan blade 100 can be increased, and the performance and efficiency of the cross-flow fan blade 100 can be improved. Meanwhile, the second blade 130 can change the inlet and outlet angle of the cross-flow fan blade 100 according to different loads in actual working conditions, so that the second blade 130 is adjusted to the position point suitable for the corresponding working condition, the load distribution is automatically balanced, and the running efficiency of the structure of the cross-flow fan blade 100 is improved. The magnetic adsorption assembly 150 is arranged on the first blade 110 and / or the second blade 130, so that the second blade 130 can slide and reset, and the second blade 130 can reciprocatingly slide and reset.

[0050] Although the present application is disclosed as above, the present application is not limited to this. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, and the protection scope of the present application should be limited by the scope defined by the claims.

Claims

1. A cross-flow blade, applied to a cross-flow fan blade (300), characterized in that, The cross-flow blade (100) includes a first blade (110), a second blade (130) and a magnetic adsorption assembly (150). The first blade (110) and the second blade (130) are slidably connected. The second blade (130) can slide relative to the first blade (110) to adjust the inlet and outlet angles of the cross-flow fan (300). The magnetic adsorption component (150) is installed on the first blade (110) and / or the second blade (130), and the magnetic adsorption component (150) can cause the second blade (130) to slide and then reset. One of the first blade (110) and the second blade (130) is provided with a groove (111), and the other is provided with a slider (131), the slider (131) being inserted into the groove (111); The groove (111) gradually narrows towards the opening, the slider (131) has a mounting wall (133), the mounting wall (133) is mounted on the first blade (110) or the second blade (130), and the slider (131) gradually increases towards the direction away from the mounting wall (133).

2. The cross-flow blade according to claim 1, characterized in that, The magnetic adsorption assembly (150) includes a first magnetic element (151) and a second magnetic element (153) disposed opposite to each other. The first magnetic element (151) is disposed on the first blade (110), and the second magnetic element (153) is disposed on the second blade (130). The first magnetic element (151) and the second magnetic element (153) can adsorb each other.

3. The cross-flow blade according to claim 2, characterized in that, Both the first magnetic element (151) and the second magnetic element (153) are permanent magnets, and the magnetic poles of the end of the first magnetic element (151) near the second magnetic element (153) are opposite to the magnetic poles of the end of the second magnetic element (153) near the first magnetic element (151).

4. The cross-flow blade according to claim 1, characterized in that, The slider (131) can slide relative to the groove wall of the groove (111).

5. The cross-flow blade according to claim 1, characterized in that, The slider (131) is fitted into the groove (111) with a clearance.

6. The cross-flow blade according to claim 5, characterized in that, The chute (111) includes a first chute wall (113), a second chute wall (115), and a third chute wall (117) connected in sequence. The first chute wall (113) and the third chute wall (117) are arranged opposite to each other, and the end of the first chute wall (113) away from the second chute wall (115) extends toward the third chute wall (117), and the end of the third chute wall (117) away from the second chute wall (115) extends toward the first chute wall (113). The slider (131) further includes a first sidewall (135), a second sidewall (137), and a third sidewall (139) connected in sequence. The first sidewall (135) and the third sidewall (139) are arranged opposite to each other, and the ends of the first sidewall (135) and the third sidewall (139) are respectively connected to the mounting wall (133). The second sidewall (137) is arranged opposite to the mounting wall (133), and the end of the first sidewall (135) away from the mounting wall (133) extends in a direction away from the third sidewall (139). The end of the third sidewall (139) away from the mounting wall (133) extends in a direction away from the first groove wall (113). The first groove wall (113) is disposed opposite to the first side wall (135), the second groove wall (115) and the second side wall (137) are disposed opposite to each other, and the third groove wall (117) and the third side wall (139) are disposed opposite to each other.

7. The cross-flow blade according to claim 1, characterized in that, A gap (140) is provided between the slider (131) and the slide groove (111). The gap (140) is used for the slider (131) to slide relative to the slide groove (111). The value range of the gap (140) is 0.04mm to 0.06mm.

8. The cross-flow blade according to any one of claims 1-6, characterized in that, The sliding distance of the second blade (130) relative to the first blade (110) ranges from 0.35mm to 0.5mm.

9. A cross-flow fan blade, characterized in that, It includes a support frame (310) and a plurality of cross-flow blades (100) as described in any one of claims 1-8, wherein the first blades (110) of the plurality of cross-flow blades (100) are all mounted on the support frame (310).

10. An air conditioner, characterized in that, Includes the cross-flow fan blade (300) as described in claim 9.

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