Wind power blade with deicing function

Abstract

The invention relates to the technical field of new energy power generation equipment, in particular to a wind power blade with a deicing function, which comprises a blade main body, the blade main body is a hollow shell, the wind power blade further comprises a water driving ring, an ice breaking rope and a stop block, the water driving ring is annular, and the blade main body is sleeved with the water driving ring; the blade body is divided into a plurality of sections of continuous working areas in the length direction, each section of working area is provided with a water driving ring, the icebreaking ropes are steel wire ropes, the two ends of each icebreaking rope are fixed to the two ends of the corresponding working area respectively, the two ends of each working area are provided with a plurality of check blocks respectively, and the water driving rings are arranged below the icebreaking ropes. The water driving ring comprises a ring body and a water driving ring body, the cross section of the water driving ring body is a trapezoid with the wide inside and the narrow outside, the water driving ring body is arranged on the inner side of the ring body, and the inner side face of the water driving ring body is attached to the surface of the blade body. The wind power blade can clean water drops and thin ice attached to the surface of the blade, and is low in energy consumption and high in practicability.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy power generation equipment, and in particular to a wind turbine blade with a deicing function. Background Art

[0002] The wind power industry is one of my country's emerging industries. In winter, wind turbines are prone to blade icing problems. Icing will increase the weight of the blades and form an unbalanced load, resulting in reduced power generation and blade damage, which will affect the power generation efficiency and service life of the wind turbine. When the blades rotate, the ice will also cause safety hazards to nearby personnel and property. The existing solutions to the icing problem are: 1. Apply anti-icing paint; 2. Thermal deicing. Anti-icing paint can reduce the occurrence of freezing to a certain extent, but it cannot completely prevent freezing. When encountering severe cold weather, the paint will lose its anti-icing effect. Thermal deicing requires melting a large amount of ice and consumes a lot of electricity.

[0003] In the prior art, the invention patent with application publication number CN117846901A provides a blade deicing device and deicing method for wind power generation, including: an ice-clearing mechanism arranged on the outside of the wind blade and a transmission mechanism arranged in a one-to-one correspondence with the ice-clearing mechanism. A functional mechanism is arranged on the inner side of the outer casing. Under the action of the motor and the transmission assembly on the functional mechanism, the transmission mechanism and the fan can be synchronously driven. The ice-clearing mechanism can be raised and lowered on the outside of the wind blade through the transmission mechanism. The rotating fan can blow air into the inside of the wind tube, so that the hot air inside the heat storage cavity can be transported to the ice-clearing mechanism through the connecting mechanism, and the outer wall of the wind blade is melted by hot air. When the oblique blowing end on the ice-clearing mechanism blows air into the inner part of the outer ring, the wind force will push the curved surface block, so that the rotating ring can rotate on the outer ring, thereby driving the bristles to revolve, and the ice on the outer wall of the wind blade can be better removed by friction with the hot air melting, greatly improving the deicing efficiency.

[0004] In the process of realizing the present invention, the inventors found that there are at least the following problems in the prior art: 1. The thermal deicing method requires melting a large amount of ice cubes, which consumes a lot of electricity; 2. The rotating ring in the patented technology can rotate on the outer ring, so as to remove the ice on the wind blades by friction, using a friction deicing method, but the friction method can only remove water droplets but not ice. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention develops a wind turbine blade with a deicing function, which can clean water droplets and thin ice attached to the surface of the blade, has low energy consumption and is highly practical.

[0006] The technical solution to the technical problem solved by the present invention is as follows: an embodiment of the present invention provides a wind turbine blade with de-icing function, comprising a blade body, which is a hollow shell. The wind turbine blade also includes a water-repelling ring, an ice-breaking rope, and a block. The water-repelling ring is annular and is sleeved on the blade body. The blade body is divided into multiple continuous working areas along the length direction, and each working area is provided with a water-repelling ring. The ice-breaking rope is a steel wire rope, and multiple ice-breaking ropes are provided. The two ends of the ice-breaking rope are respectively fixed at the two ends of the working area, and multiple blocks are respectively provided at the two ends of the working area. The water-repelling ring is provided below the ice-breaking rope; the water-repelling ring comprises a ring body and a water-repelling ring. The cross-section of the water-repelling ring is a trapezoid that is wide inside and narrow outside. The water-repelling ring is provided inside the ring body, and the inner side surface of the water-repelling ring is in contact with the surface of the blade body.

[0007] The ring body is a solid metal ring. The wind turbine includes a wind rotor, which includes multiple blade bodies. The root of the blade body is close to the center of the wind rotor. The wind turbine blades rotate around the center of the wind rotor in a vertical plane. Every time the wind rotor rotates one circle, the blade body rotates from the bottom of the wind rotor to the top, and then from the top of the wind rotor back to the bottom. The end close to the root of the blade body is the top of the working area, and the end away from the root of the blade body is the bottom of the working area.

[0008] As an optimization, the working area is segmented according to the shape change of the cross section of the blade body. The area where the shape change of the cross section of the blade body is large has a short working area; the area where the shape change of the cross section of the blade body is small has a long working area. The maximum speed of the blades of a wind turbine is usually no more than 30 revolutions per minute, and the time for each blade to rotate one circle is more than 2 seconds. The time for the water-repelling circle to move from one end of the working area to the other end is more than 1 second. A free fall drops 4.9 meters in 1 second. To ensure that the water-repelling circle can pass through the entire working area, the length of the working area cannot exceed 4.9 meters. At the same time, considering that friction must be overcome during the water-repelling process, the maximum length of the working area is set to 2 meters.

[0009] As an optimization, the blade body includes a blade root, a main spar cap, a web, a skin, and a blade tip. The web is arranged inside the main spar cap. The cross-sectional shape of the blade root and the main spar cap area varies greatly, and the length of the working area of ​​the blade root and the main spar cap area is set to 1 meter; the cross-sectional shape of the skin and the blade tip area varies little, and the length of the working area of ​​the skin and the blade tip area is set to 2 meters. As an optimization, the wind turbine blade further includes a pull rope and a rope collector. A plurality of rope collectors are respectively arranged at both ends of the working area. The rope collector includes a rotating shaft and a spring box. The lower end of the rotating shaft is connected to the spring in the spring box. The spring box is fixed in the blade body. One end of the pull rope is connected to the upper end of the rotating shaft and the other end is connected to the ring body. When the water-repelling ring is located in the middle of the working area, the springs in the spring boxes at both ends of the working area are tightened to the same degree, and are both in a half-full state or less than half-full state.

[0010] As an optimization, the rope collector also includes a protective shell, which wraps the rotating shaft and is connected to the clockwork box, and the pull rope passes through the side of the protective shell.

[0011] As an optimization, the rope collector also includes a motor, which is installed in the blade body, and the output shaft of the motor is connected to the rotating shaft.

[0012] As an optimization, the wind turbine blade also includes a heating cable, which is arranged in the shell of the blade body and outside the shell of the blade body. The blade body is mainly made of composite materials, and glass fiber is one of the key raw materials. Glass fiber has a low thermal conductivity and weak thermal conductivity. By arranging the heating cable outside the shell of the blade body, heat can be quickly transferred to the ice, reducing heat loss.

[0013] As an optimization, the heating cables are arranged on both sides of the windward surface of the blade body.

[0014] As an optimization, a heating cable is also arranged between adjacent working areas of the blade body, a heating cable is also arranged in the middle of the working area, and the heating cable is arranged in a circle around the blade body.

[0015] The effects provided in the content of the invention are only the effects of the embodiments, rather than all the effects of the invention. The above technical solution has the following advantages or beneficial effects:

[0016] 1. When the blade body rotates from the bottom to the top, the water-repelling ring slides from the bottom to the top of the working area under the action of the blade body and its own gravity; when the blade body rotates from the top to the bottom, the water-repelling ring slides from the top to the bottom of the working area under the action of its own weight. In this process, the water-repelling ring can drive together the water droplets and thin ice attached to the surface of the blade body, and the water droplets and thin ice fall to the ground under their own gravity. The ice-breaking rope is attached to the surface of the blade body. By setting the water-repelling ring below the ice-breaking rope, the water-repelling ring will also lift up the ice-breaking rope during movement, thereby breaking the ice layer. By setting the ice-breaking rope as a wire rope, the wire rope is a spiral steel wire bundle twisted together according to certain rules with steel wires that meet the requirements of mechanical properties and geometric dimensions. Compared with traditional nylon ropes, steel wire ropes have higher strength. Under the same strength requirements, they have a smaller diameter, which reduces their own weight. At the same time, steel wire ropes do not absorb water, so it is difficult for ice to adhere to the icebreaking rope. The passage of the water-repelling ring will also cause friction with the icebreaking rope, clearing the ice wrapped on the icebreaking rope. At the same time, the steel wire rope has a certain rigidity, and it will move in a small range in advance before the water-repelling ring moves to the bottom, which prolongs the icebreaking time and reduces the difficulty of icebreaking. The wind turbine blade can clean the water droplets and thin ice attached to the surface of the blade, with low energy consumption and strong practicality.

[0017] 2. By limiting the length of the working area, the change in the cross section of each working area of ​​the blade body can be ignored. Under the effect of its own elasticity, the water-repelling ring can keep the inner side of the water-repelling ring always in contact with the surface of the blade body.

[0018] 3. By setting the pull rope and the rope retractor, the spring in front of the water drive circle in the direction of movement is relaxed, and the spring behind the direction of movement is tightened. The spring behind the direction of movement will hinder the movement of the water drive circle, which can buffer the movement of the water drive circle and avoid damage caused by excessive speed hitting the equipment.

[0019] 4. By setting up a motor, the pull rope can be retracted to fix the position of the water-driving ring, so that the cleaning action can be controlled. The cleaning action can be stopped in warm weather to reduce the impact on the power generation of the blades. When the water-driving ring is needed to clean the water droplets and thin ice on the surface of the blades, the motor is powered off and does not work, which will not affect the work of the barrel; when the water-driving ring is not needed to clean the water droplets and thin ice on the surface of the blades, the motor at one end of the working area is powered on, and the motor rotates to retract all the pull ropes, and the water-driving ring is restricted from moving.

[0020] 5. When the blade body rotates, the points of force for ice accumulation are concentrated on both sides of the windward surface of the blade body. By arranging heating cables on both sides of the windward surface of the blade body, the ice can be melted by the heating cables, and the ice accumulation can be separated from the gravity direction, eliminating the main force area for ice accumulation, which is more conducive to the removal and automatic shedding of ice accumulation.

[0021] 6. By setting heating cables between adjacent working areas of the blade body, setting heating cables in the middle of the working area, and setting a circle of heating cables around the blade body, the ice can be divided into small pieces, which is convenient for the ice-breaking rope to break the ice layer. When the water-repelling ring is not activated, resulting in ice forming on the surface of the blade body, and the ice cannot be broken by the ice-breaking rope, the heating cable is energized to divide the ice into small pieces, and then the ice-breaking rope is lifted up by the movement of the water-repelling ring to break the ice layer. The water-repelling ring will first break the ice at the front end of the movement path, and gradually expand to the entire working area to complete the de-icing work. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view of the working state of the first embodiment of the present invention.

[0023] Figure 2 for Figure 1 A partial enlarged view of the middle R area.

[0024] Figure 3 for Figure 1 A partial enlarged view of the middle S region.

[0025] Figure 4 This is the overall structural diagram of the water drive circle in the first embodiment of the present invention.

[0026] Figure 5 This is an overall structural diagram of the blade body in the second embodiment of the present invention.

[0027] Figure 6 It is a front view of the working state of the third embodiment of the present invention.

[0028] Figure 7 for Figure 6 A partial enlarged view of area A.

[0029] Figure 8 This is the overall structural diagram of the rope collector in the third embodiment of the present invention.

[0030] Fig. 9 It is a front view of the working state of the fourth embodiment of the present invention.

[0031] Fig.10 for Fig. 9 A partial enlarged view of area B in the middle.

[0032] Among them: 1. Blade body, 2. Water-repelling circle, 3. Ice-breaking rope, 4. Block, 5. Pull rope, 6. Rope retractor, 7. Heating cable, 11. Blade root, 12. Main beam cap, 13. Web, 14. Skin, 15. Blade tip, 21. Ring body, 22. Water-repelling circle, 61. Rotating shaft, 62. Spring box, 63. Protective shell, 64. Motor. DETAILED DESCRIPTION

[0033] In order to clearly illustrate the technical features of the present invention, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0034] Embodiment 1: Figures 1 to 4 For the first embodiment of the present invention, Figure 1 As shown, a wind turbine blade with deicing function includes a blade body 1, and the blade body 1 is a hollow shell. Figure 2 As shown, the wind turbine blade also includes a water-repelling ring 2, an ice-breaking rope 3, and a block 4. The water-repelling ring 2 is annular and is sleeved on the blade body 1. The blade body 1 is divided into multiple continuous working areas along the length direction, and each working area is provided with a water-repelling ring 2. The ice-breaking rope 3 is a steel wire rope, and multiple ice-breaking ropes 3 are provided. The two ends of the ice-breaking rope 3 are respectively fixed at the two ends of the working area, and multiple blocks 4 are respectively provided at the two ends of the working area. The water-repelling ring 2 is arranged below the ice-breaking rope 3; as shown Figure 4 As shown, the water-repelling ring 2 includes a ring body 21 and a water-repelling ring 22. The cross section of the water-repelling ring 22 is a trapezoidal shape with a wide inside and a narrow outside. The water-repelling ring 22 is arranged inside the ring body 21, and the inner side surface of the water-repelling ring 22 is in contact with the surface of the blade body 1. The ring body 21 is a solid metal ring.

[0035] like Figure 1As shown, the wind turbine includes a wind rotor, which includes three blade bodies 1. The root of the blade body 1 is close to the center of the wind rotor. The wind turbine blades rotate around the center of the wind rotor in a vertical plane. Every time the wind rotor rotates one circle, the blade body 1 rotates from the bottom of the wind rotor to the top, and then rotates from the top of the wind rotor back to the bottom. The end close to the root of the blade body 1 is the top of the working area, and the end away from the root of the blade body 1 is the bottom of the working area. Figure 3 As shown, during the process of the blade body 1 rotating from the bottom to the top, the water-repelling ring 22 slides from the bottom of the working area to the top under the action of the blade body 1; Figure 2 As shown, during the process of the blade body 1 rotating from the top to the bottom, the water-repelling circle 22 slides from the top of the working area to the bottom under the action of its own weight. During this process, the water-repelling circle 22 can drive together the water droplets and thin ice attached to the surface of the blade body 1, and the water droplets and thin ice fall to the ground under their own gravity. The ice-breaking rope 3 is attached to the surface of the blade body 1. By setting the water-repelling circle 2 below the ice-breaking rope 3, the water-repelling circle 2 will also lift up the ice-breaking rope 3 during the movement, thereby breaking the ice layer. By setting the ice-breaking rope as a steel wire rope, the steel wire rope is a spiral steel wire bundle in which steel wires with mechanical properties and geometric dimensions that meet the requirements are twisted together according to certain rules. Compared with traditional nylon ropes, steel wire ropes have higher strength and smaller diameters under the same strength requirements, which reduces their own weight. At the same time, steel wire ropes do not absorb water, and it is difficult for ice to adhere to the icebreaking ropes. The passage of the water-repelling circle will also cause friction with the icebreaking ropes, clearing the ice wrapped around the icebreaking ropes. At the same time, the steel wire ropes have a certain rigidity, and they will move in a small range in advance before the water-repelling circle moves to the bottom, which prolongs the icebreaking time and reduces the difficulty of icebreaking. The wind turbine blades can clean water droplets and thin ice attached to the surface of the blades, with low energy consumption and strong practicality.

[0036] Embodiment 2: Figure 5 For the second embodiment of the present invention, Figure 5As shown in the figure, a blade body 1 with a length of 23 meters is shown. The segmentation of the working area is carried out according to the shape change of the cross section of the blade body 1. The area where the shape change of the cross section of the blade body 1 is large, the length of the working area is short; the area where the shape change of the cross section of the blade body 1 is small, the length of the working area is long. The maximum speed of the blades of a wind turbine is usually no more than 30 revolutions per minute, and the time for each blade to rotate one circle is greater than 2 seconds. The time for the water-repelling circle 22 to move from one end of the working area to the other end is greater than 1 second. A free fall drops 4.9 meters in 1 second. In both cases, it is necessary to ensure that the water-repelling circle 22 can pass through the entire working area, so the length of the working area cannot exceed 4.9 meters. At the same time, considering that friction must be overcome during the water-repelling process, the maximum length of the working area is set to 2 meters. The blade body 1 includes a blade root 11, a main beam cap 12, a web 13, a skin 14, and a blade tip 15. The web 13 is arranged inside the main beam cap 12. The cross-sectional appearance of the blade root 11 and the main beam cap 12 area varies greatly. The working area of ​​the blade root 11 and the main beam cap 12 area is provided with 9 sections, and the length of each section is set to 1 meter. The cross-sectional appearance of the skin 14 and the blade tip 15 area varies little. The working area of ​​the skin 14 and the blade tip 15 area is provided with 7 sections, and the length of each section is set to 2 meters. By limiting the length of the working area, the change of the cross-sectional appearance in each section of the working area of ​​the blade body 1 can be ignored. Under the action of its own elasticity, the water repelling ring 22 can keep the inner side of the water repelling ring 22 always in contact with the surface of the blade body 1.

[0037] Embodiment 3: Figures 6 to 8 This is the third embodiment of the present invention, which is different from the first embodiment in that the wind turbine blade further includes a pull rope 5 and a rope collector 6. A plurality of rope collectors 6 are respectively arranged at both ends of the working area. Figure 8As shown, the rope collector 6 includes a rotating shaft 61 and a spring box 62. The lower end of the rotating shaft 61 is connected to the spring in the spring box 62. The spring box 62 is fixed in the blade body 1. One end of the pull rope 5 is connected to the upper end of the rotating shaft 61 and the other end is connected to the ring body 21. When the water-driving ring 2 is located in the middle of the working area, the tightening degree of the springs in the spring boxes 62 at both ends of the working area is the same, and both are in a half-full state or less than a half-full state. By setting the pull rope 5 and the rope collector 6, the movement of the water-driving ring 2 can be buffered to avoid damage caused by hitting the equipment due to excessive speed. The rope collector 6 also includes a protective shell 63, which wraps the rotating shaft 61, and the protective shell 63 is connected to the spring box 62. The pull rope 5 passes through the side of the protective shell 63. The rope collector 6 also includes a motor 64, which is installed in the blade body 1, and the output shaft of the motor 64 is connected to the rotating shaft 61. When the water-driving ring 2 is needed to clean the water droplets and thin ice on the surface of the blade, the motor 64 is powered off and does not work, which will not affect the work of the barrel 62; when the water-driving ring 2 is not needed to clean the water droplets and thin ice on the surface of the blade, the motor 64 at one end of the working area is powered on, and the motor 64 rotates to retract all the pull ropes 5, and the water-driving ring 2 is restricted from moving. By setting the motor 64 to fix the position of the water-driving ring 2 by retracting the pull rope 5, the cleaning action is controllable, and the cleaning action is stopped in warm weather, reducing the impact on the power generation work of the blade.

[0038] Embodiment 4: Fig. 9 , Fig.10This is the fourth embodiment of the present invention, which is different from the first embodiment in that the wind turbine blade further includes a heating cable 7, which is arranged in the shell of the blade body 1, and the heating cable 7 is arranged outside the shell of the blade body 1. The blade body 1 is mainly made of composite materials, and glass fiber is one of the key raw materials. Glass fiber has a low thermal conductivity and a weak thermal conductivity. By arranging the heating cable 7 outside the shell of the blade body 1, heat can be quickly transferred to ice cubes, reducing heat loss. The heating cable 7 is arranged on both sides of the windward surface of the blade body 1. When the blade body 1 rotates, the force points of ice coating are concentrated on both sides of the windward surface of the blade body 1. By arranging the heating cables 7 on both sides of the windward surface of the blade body 1, the ice cubes can be melted by the heating cables 7, and the ice coating is separated from the gravity direction, eliminating the main force area of ​​ice coating, which is more conducive to the removal and automatic shedding of ice cubes. A heating cable 7 is also arranged between adjacent working areas of the blade body 1, and a heating cable 7 is also arranged in the middle of the working area. The heating cable 7 is arranged around the blade body 1. By setting heating cables between adjacent working areas of the blade body, setting heating cables in the middle of the working area, and setting a circle of heating cables around the blade body, the ice can be divided into small pieces, which is convenient for the ice-breaking rope to break the ice layer. When the water-repelling ring is not activated, resulting in ice forming on the surface of the blade body, and the ice cannot be broken by the ice-breaking rope, the heating cable is energized to divide the ice into small pieces, and then the ice-breaking rope is lifted up by the movement of the water-repelling ring to break the ice layer. The water-repelling ring will first break the ice at the front end of the movement path, and gradually expand to the entire working area to complete the de-icing work.

[0039] Wind turbine blade production steps: 1. Make blade shell splicing blocks, cut, splice and solidify glass fiber and other materials according to the design plan to make blade shell splicing blocks, and bury heating cables 7 in the shell splicing blocks; 2. Coat glass fiber material, apply a layer of glass fiber material, usually epoxy resin, on the surface of the blade shell to increase the strength and durability of the blade; 3. Welding: weld the shell splicing blocks into one, install water drive ring 2, ice breaking rope 3, block 4, pull rope 5, rope retractor 6, and connect the heating cable 7.

[0040] Although the above describes the specific implementation mode of the invention in conjunction with the drawings, it is not intended to limit the scope of protection of the invention. Based on the technical solution of the present invention, various modifications or variations that can be made by those skilled in the art without creative work are still within the scope of protection of the present invention.

Claims

1. A wind turbine blade with deicing function, comprising a blade body (1), the blade body (1) being a hollow shell, and characterized in that: The wind turbine blade further comprises a water-repelling ring (2), an ice-breaking rope (3), and a stopper (4); the water-repelling ring (2) is annular and is sleeved on the blade body (1); the blade body (1) is divided into a plurality of continuous working areas along the length direction, and each working area is provided with a water-repelling ring (2); the ice-breaking rope (3) is a steel wire rope, and a plurality of ice-breaking ropes (3) are provided. The two ends of the ice-breaking rope (3) are respectively fixed to the two ends of the working area, and a plurality of stoppers (4) are respectively provided at the two ends of the working area; the water-repelling ring (2) is provided below the ice-breaking rope (3); the water-repelling ring (2) comprises a ring body (21) and a water-repelling ring (22); the cross section of the water-repelling ring (22) is a trapezoidal shape with a wide inside and a narrow outside; the water-repelling ring (22) is provided on the inner side of the ring body (21), and the inner side surface of the water-repelling ring (22) is in contact with the surface of the blade body (1).

2. The wind turbine blade with deicing function according to claim 1 is characterized in that: The segmentation of the working area is performed according to the shape change of the cross section of the blade body (1), and the length of the working area is short in the area where the shape change of the cross section of the blade body (1) is large; The area where the shape of the cross section of the blade body (1) changes little has a long working area.

3. The wind turbine blade with deicing function according to claim 2 is characterized in that: The blade body (1) comprises a blade root (11), a main beam cap (12), a web (13), a skin (14), and a blade tip (15); the web (13) is arranged inside the main beam cap (12); the shape of the cross section of the blade root (11) and the main beam cap (12) region changes greatly, and the length of the working area of ​​the blade root (11) and the main beam cap (12) region is set to 1 meter; the shape of the cross section of the skin (14) and the blade tip (15) region changes little, and the length of the working area of ​​the skin (14) and the blade tip (15) region is set to 2 meters.

4. The wind turbine blade with deicing function according to claim 1 is characterized in that: The wind turbine blade further comprises a pull rope (5) and a rope collector (6). A plurality of rope collectors (6) are respectively arranged at both ends of the working area. The rope collector (6) comprises a rotating shaft (61) and a spring box (62). The lower end of the rotating shaft (61) is connected to a spring in the spring box (62). The spring box (62) is fixed in the blade body (1). One end of the pull rope (5) is connected to the upper end of the rotating shaft (61), and the other end is connected to the ring body (21).

5. The wind turbine blade with deicing function according to claim 4 is characterized in that: The rope collecting device (6) further comprises a protective shell (63), wherein the protective shell (63) wraps around the rotating shaft (61), the protective shell (63) is connected to the clockwork box (62), and the pull rope (5) passes through the side of the protective shell (63).

6. The wind turbine blade with deicing function according to claim 4 is characterized in that: The rope collector (6) further comprises a motor (64), the motor (64) being mounted in the blade body (1), and the output shaft of the motor (64) being connected to the rotating shaft (61).

7. The wind turbine blade with deicing function according to claim 1, characterized in that: The wind turbine blade further comprises a heating cable (7), wherein the heating cable (7) is arranged in a shell of the blade body (1), and the heating cable (7) is arranged outside the shell of the blade body (1).

8. The wind turbine blade with deicing function according to claim 7, characterized in that: The heating cables (7) are arranged on both sides of the windward surface of the blade body (1).

9. The wind turbine blade with deicing function according to claim 8, characterized in that: A heating cable (7) is also provided between adjacent working areas of the blade body (1), and a heating cable (7) is also provided in the middle of the working area. The heating cable (7) is arranged in a circle around the blade body (1).

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