Wind driven generator and wind driven generator set

Abstract

The utility model relates to a wind driven generator and a wind driven generator set. The wind driven generator comprises a cabin, a cooling module and a heat dissipation device. The cooling module is arranged in the cabin; the heat dissipation device is arranged outside the cabin and is communicated with the cooling module; the heat dissipation device comprises at least one first heat dissipation plate set and at least one second heat dissipation plate set, an included angle is formed between the first heat dissipation plate set and the second heat dissipation plate set, first heat dissipation holes are formed in the first heat dissipation plate set in a penetrating mode, and second heat dissipation holes are formed in the second heat dissipation plate set in a penetrating mode. The heat dissipation device is provided with a drainage component, and the drainage component guides airflow to flow through the first heat dissipation holes and / or the second heat dissipation holes. According to the wind driven generator and the wind driven generator set, the heat dissipation effect of the wind driven generator can be effectively improved, and the safety of the wind driven generator is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of wind power technology, in particular to a wind turbine and a wind turbine set. BACKGROUND

[0002] The wind turbine mainly comprises a cabin, a heating component, a cooling module and a heat dissipation device. The heating component and the cooling module are arranged in the cabin. In the operation process, the heating component generates heat. The cooling module is used for absorbing the heat generated by the heating component to cool the heating component. The heat dissipation device is arranged outside the cabin and is in communication with the cooling module. The cooling medium in the cooling module flows to the heat dissipation device after absorbing heat. The external air exchanges heat with the heat dissipation device to cool the cooling medium in the heat dissipation device, so that the temperature of the cooling medium decreases and the cooling medium flows back to the cooling module to absorb the heat generated by the heating component.

[0003] At present, the heat dissipation device comprises a support frame and a plurality of heat dissipation fins. The plurality of heat dissipation fins are arranged in the same plane. In the use process, the plane where each heat dissipation fin is located is perpendicular to the wind direction.

[0004] However, with the increasing capacity of the wind turbine set, more and more heat dissipation fins are needed. The arrangement in the same plane causes the heat dissipation fins to exceed the width of the cabin, so that the heat dissipation fins overhang to both sides of the width direction of the cabin, affecting the safety of the wind turbine. CONTENT OF THE INVENTION

[0005] The wind turbine and the wind turbine set provided by the embodiments of the present application can effectively improve the heat dissipation effect of the wind turbine and improve the safety of the wind turbine.

[0006] The wind turbine provided by the embodiments of the present application comprises a cabin, a cooling module and a heat dissipation device. The cooling module is arranged in the cabin. The heat dissipation device is arranged outside the cabin and is in communication with the cooling module.

[0007] The heat dissipation device comprises at least one first heat dissipation plate group and at least one second heat dissipation plate group. The first heat dissipation plate group and the second heat dissipation plate group have an included angle. First heat dissipation holes are arranged through the first heat dissipation plate group. Second heat dissipation holes are arranged through the second heat dissipation plate group. The heat dissipation device is provided with a flow guiding component. The flow guiding component guides the airflow to flow through the first heat dissipation holes and / or the second heat dissipation holes.

[0008] According to one aspect of the embodiments of the present application, the first heat dissipation plate group is provided with one, and the second heat dissipation plate group is provided with two. The two second heat dissipation plate groups are located on the same side of the first heat dissipation plate group, and the two second heat dissipation plate groups are parallel to each other and are arranged at intervals.

[0009] According to an aspect of some embodiments of the present application, the flow guide component includes a first flow guide component and a second flow guide component;

[0010] The first flow guide component is arranged on the first heat sink group, and is configured to guide the airflow to flow from a side of the first heat sink group away from the second heat sink group to a side of the first heat sink group towards the second heat sink group;

[0011] The second flow guide component is arranged on the second heat sink group, and is configured to guide the airflow to flow from a side of the second heat sink group away from another second heat sink group to a side of the second heat sink group towards another second heat sink group.

[0012] According to an aspect of some embodiments of the present application, the first flow guide component is a suction fan, and the first flow guide component is arranged on a side of the first heat sink group towards the second heat sink group;

[0013] And / or, the first flow guide component is a blowing fan, and the first flow guide component is arranged on a side of the first heat sink group away from the second heat sink group;

[0014] And / or, the second flow guide component is a suction fan, and the second flow guide component is arranged on a side of the second heat sink group towards another second heat sink group;

[0015] And / or, the second flow guide component is a blowing fan, and the second flow guide component is arranged on a side of the second heat sink group away from another second heat sink group.

[0016] According to an aspect of some embodiments of the present application, the heat dissipation device includes two first heat sink groups and two second heat sink groups, the two first heat sink groups are parallel to each other and are arranged in a first horizontal direction, the two second heat sink groups are parallel to each other and are arranged in a second horizontal direction, and the two first heat sink groups and the two second heat sink groups are connected to form a closed annular structure;

[0017] The heat dissipation device further includes a sealing plate, the sealing plate is arranged on top of the first heat sink groups and the second heat sink groups, and the sealing plate is sealingly connected to the two first heat sink groups and the two second heat sink groups, respectively, and the sealing plate and the annular structure enclose a heat exchange cavity;

[0018] The flow guide component guides the airflow to flow into the heat exchange cavity from the first heat dissipation holes and / or the second heat dissipation holes, and the airflow flows out of the heat exchange cavity through the flow guide component;

[0019] The first horizontal direction is perpendicular to the second horizontal direction.

[0020] According to an aspect of the embodiment of the present application, the flow guide component is arranged on the first heat dissipation plate group, the second heat dissipation plate group or the sealing plate.

[0021] According to an aspect of the embodiment of the present application, the flow guide component is a suction fan, and the flow guide component is arranged outside the heat exchange cavity.

[0022] According to an aspect of the embodiment of the present application, two side walls of the nacelle are oppositely arranged in the vertical direction, and a through hole is arranged on each of the two side walls, respectively, and the inside of the nacelle is provided with a communication pipe, two ends of the communication pipe are in communication with the two through holes, respectively, and the flow guide component is arranged at one of the through holes, and the heat dissipation device is in communication with the other through hole.

[0023] The first horizontal direction, the second horizontal direction and the vertical direction are perpendicular to each other.

[0024] According to an aspect of the embodiment of the present application, the flow guide component is a suction fan, and the flow guide component guides the airflow to flow into the heat exchange cavity from the first heat dissipation hole and / or the second heat dissipation hole, and flow through the communication pipe from the heat exchange cavity and out of the nacelle through the flow guide component.

[0025] In a second aspect, the embodiment of the present application also provides a wind turbine generator, wherein the wind turbine generator comprises a foundation, a tower and a wind turbine as described in the first aspect, and the tower is arranged above the foundation; and the wind turbine is arranged at the top of the tower.

[0026] The wind turbine and the wind turbine generator provided by the embodiment of the present application have the heat dissipation device comprising at least one first heat dissipation plate group and at least one second heat dissipation plate group, and the first heat dissipation plate group and the second heat dissipation plate group have an included angle, so that the first heat dissipation plate group can be arranged directly opposite to the wind direction, and the second heat dissipation plate group forms an included angle with the wind direction, so that the first heat dissipation plate group and the second heat dissipation plate group can be arranged in the width range of the nacelle, and the flow guide component can guide the airflow to flow through the first heat dissipation hole of the first heat dissipation plate group and the second heat dissipation hole of the second heat dissipation plate group, so that the first heat dissipation plate group and the second heat dissipation plate group can be fully cooled, the heat dissipation effect of the heat dissipation device on the nacelle can be ensured, and the safety of the wind turbine can be improved as a whole. BRIEF DESCRIPTION OF DRAWINGS

[0027] The features, advantages and technical effects of the exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0028] Figure 1 A structural schematic diagram of a wind turbine provided by an embodiment of the present application is shown in the figure.

[0029] Figure 2 Another structural schematic diagram of a wind turbine provided by an embodiment of the present application is shown in the figure.

[0030] Figure 3 A structural schematic diagram of a wind power generator according to another embodiment of the present application is provided.

[0031] Figure 4 Another structural schematic diagram of a wind power generator according to another embodiment of the present application is provided.

[0032] Figure 5 A structural schematic diagram of a wind power generator according to another embodiment of the present application is provided.

[0033] Figure 6 Another structural schematic diagram of a wind power generator according to another embodiment of the present application is provided.

[0034] Figure 7 A structural schematic diagram of a wind power generator according to another embodiment of the present application is provided.

[0035] Figure 8 Another structural schematic diagram of a wind power generator according to another embodiment of the present application is provided.

[0036] In the drawings, like reference numerals refer to like elements throughout. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the application.

[0037] BRIEF DESCRIPTION OF THE DRAWINGS

[0038] 1. nacelle

[0039] 2. heat dissipation device; 21. first heat dissipation plate set; 22. second heat dissipation plate set; 23. flow guiding component; 231. first flow guiding component; 232. second flow guiding component; 24. sealing plate; 25. communication pipe

[0040] X. first horizontal direction; Y. second horizontal direction; Z. vertical direction DETAILED DESCRIPTION

[0041] Features and exemplary embodiments of various aspects of the present application will be described below in detail. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one of ordinary skill in the art that the present application can be practiced without some or all of these specific details. The description of the embodiments is merely illustrative of the present application and is not intended to limit the present application, as is apparent to one of ordinary skill in the art. In the drawings and description below, well-known structures and techniques have not been shown or described in detail in order not to obscure the application. Also, descriptions of features, structures, or characteristics can be presented in a single embodiment, or can be spread across multiple embodiments. It should be apparent, however, to one of ordinary skill in the art that the embodiments described herein are not limited to the embodiments presented below, but encompass all embodiments within the scope of the present application.

[0042] The orientation words appearing in the following description are the directions shown in the drawings, and are not intended to limit the specific structure of the wind driven generator and wind driven generator set of the present application. In the description of the present application, it should be further explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] As shown in Figure 1 and Figure 2 The wind driven generator provided by the embodiments of the present application comprises a nacelle 1, a cooling module and a heat dissipation device 2.

[0044] The cooling module is arranged inside the nacelle 1, the heat dissipation device 2 is arranged outside the nacelle 1 and is in communication with the cooling module, and the nacelle 1 further comprises a generator and other components. The cooling module can be a water cooling system, and the cooling water absorbs heat in the interior of the nacelle 1, enters the heat dissipation device 2 to be cooled and then flows back to the interior of the nacelle 1 to absorb heat again.

[0045] The heat dissipation device 2 comprises at least one first heat dissipation plate group 21 and at least one second heat dissipation plate group 22, and the first heat dissipation plate group 21 and the second heat dissipation plate group 22 have substantially the same structure, which can comprise a support and a plurality of heat dissipation fins arranged in an array on the support, or can be an integral heat dissipation fin.

[0046] The first heat dissipation plate group 21 and the second heat dissipation plate group 22 have an included angle, so that the first heat dissipation plate group 21 and the second heat dissipation plate group 22 can be arranged on the nacelle 1 and do not exceed the width direction of the nacelle 1.

[0047] The first heat dissipation plate group 21 is provided with first heat dissipation holes therethrough, and the second heat dissipation plate group 22 is provided with second heat dissipation holes therethrough, so that the airflow can pass through and exchange heat with the first heat dissipation plate group 21 and the second heat dissipation plate group 22.

[0048] Specifically, when arranged, the first heat dissipation plate group 21 can be perpendicular to the axial direction of the wind power blade of the wind driven generator, and during the operation of the wind driven generator, the first heat dissipation plate group 21 can face the wind direction, so as to ensure that the airflow passes through the first heat dissipation holes of the first heat dissipation plate group 21 at the maximum flow rate and the most fluent angle, and maximize the heat dissipation effect of the first heat dissipation plate group 21. At this time, the second heat dissipation plate group 22 has an included angle with the wind direction, and the heat dissipation capacity of the second heat dissipation plate group 22 is relatively lower than that of the first heat dissipation plate group 21.

[0049] Further, the heat dissipation device 2 is provided with a flow guiding component 23, which guides the airflow to flow through the first heat dissipation holes and / or the second heat dissipation holes, so as to improve the flow rate and flow volume of the airflow flowing through the first heat dissipation holes and the second heat dissipation holes, and improve the heat dissipation capacity of the first heat dissipation plate group 21 and the second heat dissipation plate group 22.

[0050] As shown in Figure 1 and Figure 2 According to an aspect of the embodiment of the present application, the first heat dissipation plate group 21 is provided with one, and the second heat dissipation plate group 22 is provided with two, the two second heat dissipation plate groups 22 are located on the same side of the first heat dissipation plate group 21, and the two second heat dissipation plate groups 22 are parallel and spaced apart, and the first heat dissipation plate group 21 and the two second heat dissipation plate groups 22 form a substantially U-shaped structure.

[0051] Specifically, the first heat dissipation plate group 21 is arranged perpendicular to the first horizontal direction X, the first horizontal direction X is parallel to the extension direction of the rotating shaft of the wind turbine blade, and the two second heat dissipation plate groups 22 are arranged perpendicular to the second horizontal direction Y, and the two second heat dissipation plate groups 22 are spaced apart along the second horizontal direction Y, and the second horizontal direction Y is perpendicular to the first horizontal direction X.

[0052] The flow guiding component 23 is configured to guide the airflow to flow from the outside of the U-shaped structure, pass through the first heat dissipation plate group 21 and the second heat dissipation plate group 22, and flow out of the opening of the U-shaped structure, so as to effectively send out the heat inside the U-shaped structure, and reduce the heat accumulation inside the U-shaped structure to affect the heat dissipation efficiency of the first heat dissipation plate group 21 and the second heat dissipation plate group 22.

[0053] Optionally, the flow guiding component 23 is arranged inside the opening of the U-shaped structure, so as to guide the airflow to pass through the first heat dissipation holes and the second heat dissipation holes in a way of air suction.

[0054] Optionally, the flow guiding component 23 is arranged outside the opening of the U-shaped structure, so as to guide the airflow to pass through the first heat dissipation holes and the second heat dissipation holes in a way of air blowing.

[0055] As shown in Figure 1 and Figure 2 According to an aspect of the embodiment of the present application, the flow guiding component 23 includes a first flow guiding component 231 and a second flow guiding component 232.

[0056] The first flow guiding component 231 is arranged on the first heat dissipation plate group 21, and the first flow guiding component 231 is used to guide the airflow to flow from the side of the first heat dissipation plate group 21 away from the second heat dissipation plate group 22 to the side of the first heat dissipation plate group 21 towards the second heat dissipation plate group 22.

[0057] The second airflow guiding component 232 is disposed on the second heat sink assembly 22. The second airflow guiding component 232 is used to guide the airflow from the side of the second heat sink assembly 22 away from the other second heat sink assembly 22 to the side of the second heat sink assembly 22 towards the other heat sink assembly.

[0058] This allows airflow to pass through the first heat sink assembly 21 and the second heat sink assembly 22 into the inner side of the U-shaped structure and out through the opening of the U-shaped structure, ensuring the heat dissipation efficiency of the first heat sink assembly 21 and the second heat sink assembly 22.

[0059] Optionally, the first airflow guiding component 231 is an air intake fan, and the first airflow guiding component 231 is located on the side of the first heat sink assembly 21 facing the second heat sink assembly 22; that is, the first airflow guiding component 231 is located on the inner side of the U-shaped structure, attracting airflow from the outside of the U-shaped structure through the first heat sink assembly 21 into the interior of the U-shaped structure.

[0060] Optionally, the first airflow guiding component 231 is a blower fan, and the first airflow guiding component 231 is located on the side of the first heat sink assembly 21 away from the second heat sink assembly 22; that is, the first airflow guiding component 231 is located on the outside of the U-shaped structure, and the blown airflow passes through the first heat sink assembly 21 from the outside of the U-shaped structure and enters the interior of the U-shaped structure.

[0061] Optionally, the second airflow guiding component 232 is an air intake fan, and the second airflow guiding component 232 is located on the side of the second heat sink assembly 22 facing the other second heat sink assembly 22; that is, the second airflow guiding component 232 is located on the inside of the U-shaped structure, attracting airflow from the outside of the U-shaped structure through the second heat sink assembly 22 into the interior of the U-shaped structure.

[0062] Optionally, the second airflow guiding component 232 is a blower fan, and the second airflow guiding component 232 is located on the side of the second heat sink assembly 22 away from the other second heat sink assembly 22; that is, the second airflow guiding component 232 is located on the outside of the U-shaped structure, and the blower airflow passes through the second heat sink assembly 22 from the outside of the U-shaped structure and enters the interior of the U-shaped structure.

[0063] like Figures 3 to 5 As shown, according to one aspect of the embodiments of this application, the heat dissipation device 2 includes two first heat dissipation plate groups 21 and two second heat dissipation plate groups 22. The two first heat dissipation plate groups 21 are parallel to each other and spaced apart along a first horizontal direction X. The two second heat dissipation plate groups 22 are parallel to each other and spaced apart along a second horizontal direction Y. The two first heat dissipation plate groups 21 and the two second heat dissipation plate groups 22 are connected to form a closed rectangular ring structure.

[0064] The heat dissipation device 2 also includes a sealing plate 24, which is located on the top of the first heat dissipation plate group 21 and the second heat dissipation plate group 22. The sealing plate 24 is sealed to the two first heat dissipation plate groups 21 and the two second heat dissipation plate groups 22 respectively. The sealing plate 24 and the annular structure enclose a rectangular heat exchange cavity.

[0065] The heat dissipation device 2 forms a more stable box-shaped structure, which can further improve the structural strength of the heat dissipation device 2 and the safety after being installed in the cabin 1.

[0066] The flow guide component 23 guides the airflow to flow into the heat exchange cavity through the first heat dissipation hole and / or the second heat dissipation hole, and the airflow flows out of the heat exchange cavity through the flow guide component 23; so as to take away the heat in the heat exchange cavity and exchange heat with the first heat dissipation plate group 21 and the second heat dissipation plate group 22, thereby improving the heat dissipation effect of the heat dissipation device 2.

[0067] As shown in Figures 3 to 6 According to one aspect of the embodiment of the present application, the flow guide component 23 is arranged on the first heat dissipation plate group 21, the second heat dissipation plate group 22, or the sealing plate 24.

[0068] When the flow guide component 23 is arranged on one of the first heat dissipation plate groups 21, the airflow can pass through the other first heat dissipation plate group 21 and the two second heat dissipation plate groups 22 to enter the heat exchange cavity;

[0069] When the flow guide component 23 is arranged on one of the second heat dissipation plate groups 22, the airflow can pass through the other second heat dissipation plate group 22 and the two first heat dissipation plate groups 21 to enter the heat exchange cavity;

[0070] When the flow guide component 23 is arranged on the sealing plate 24, the airflow can pass through the two first heat dissipation plate groups 21 and the two second heat dissipation plate groups 22 to enter the heat exchange cavity.

[0071] The arrangement position of the flow guide component 23 can be flexibly adjusted according to the heat dissipation requirement of the cabin 1, so as to ensure that the airflow is guided to enter the heat exchange cavity and is discharged from the flow guide component 23 to the outside of the heat exchange cavity, thereby taking away the heat in the heat exchange cavity.

[0072] According to one aspect of the embodiment of the present application, the flow guide component 23 is a suction fan, and the flow guide component 23 is arranged on the outside of the heat exchange cavity. The airflow in the heat exchange cavity is sucked, a negative pressure is formed in the heat exchange cavity, and the gas outside the heat exchange cavity flows into the outside of the heat exchange cavity through the first heat dissipation hole and the second heat dissipation hole under the action of the pressure, thereby forming active heat dissipation.

[0073] As shown in Figure 7 and Figure 8 According to one aspect of the embodiment of the present application, two through holes are respectively arranged on two side walls of the cabin 1 which are arranged opposite to each other in the vertical direction Z, a communication pipe 25 is arranged in the cabin 1, two ends of the communication pipe 25 are respectively communicated with the two through holes, so as to form two independent cavities, the outside of the communication pipe 25 is the closed cabin 1 space, and the inside of the communication pipe 25 forms a heat dissipation channel.

[0074] The flow guide component 23 is arranged at one of the through holes, and the heat dissipation device 2 is communicated with the other through hole.

[0075] Specifically, the flow guide component 23 is a suction fan, and the flow guide component 23 guides the airflow to flow from the first heat dissipation hole and the second heat dissipation hole into the heat exchange cavity, and then flow through the communication pipe 25 and out of the cabin 1 through the flow guide component 23.

[0076] The flow guide component 23 guides the airflow to flow from the heat dissipation device 2 into the interior of the communication pipe 25 and out of the flow guide component 23, thereby achieving heat exchange between the airflow and the first heat dissipation plate group 21 and the second heat dissipation plate group 22, and further directly heat exchanging with the interior of the cabin 1 through the communication pipe 25, thereby improving the cooling effect of the cabin 1.

[0077] In a second aspect, the embodiments of the present application also provide a wind turbine generator, wherein the wind turbine generator comprises a foundation, a tower and a wind turbine as described in the first aspect, the tower is arranged above the foundation; and the wind turbine is arranged at the top of the tower.

[0078] The wind turbine generator provided by the embodiments of the present application has the heat dissipation device 2 of the wind turbine, which comprises at least one first heat dissipation plate group 21 and at least one second heat dissipation plate group 22, and the first heat dissipation plate group 21 and the second heat dissipation plate group 22 have an included angle therebetween, so that the first heat dissipation plate group 21 can be arranged to face the wind direction, and the second heat dissipation plate group 22 forms an included angle with the wind direction, thereby achieving the arrangement of the first heat dissipation plate group 21 and the second heat dissipation plate group 22 within the width range of the cabin 1, and the flow guide component 23 can guide the airflow to flow through the first heat dissipation hole of the first heat dissipation plate group 21 and the second heat dissipation hole of the second heat dissipation plate group 22, thereby achieving sufficient heat dissipation with the first heat dissipation plate group 21 and the second heat dissipation plate group 22, ensuring the heat dissipation effect of the heat dissipation device 2 on the cabin 1, and improving the safety of the wind turbine as a whole.

[0079] Although the present application has been described with reference to the preferred embodiments, various modifications can be made to it without departing from the scope of the present application, and equivalent components can be substituted therefor. In particular, the technical features mentioned in each embodiment can be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A wind power generator, characterized in that, The wind power generator comprises: a nacelle (1); a cooling module arranged inside the nacelle (1); a heat dissipation device (2) arranged outside the nacelle (1) and in communication with the cooling module; the heat dissipation device (2) comprises at least one first heat dissipation plate group (21) and at least one second heat dissipation plate group (22), the first heat dissipation plate group (21) and the second heat dissipation plate group (22) have an included angle, the first heat dissipation plate group (21) is provided with first heat dissipation holes, the second heat dissipation plate group (22) is provided with second heat dissipation holes, and the heat dissipation device (2) is provided with a flow guiding component (23), the flow guiding component (23) guides airflow to flow through the first heat dissipation holes and / or the second heat dissipation holes.

2. A wind power generator according to claim 1, characterised in that The first heat dissipation plate group (21) is provided with one, the second heat dissipation plate group (22) is provided with two, the two second heat dissipation plate groups (22) are located on the same side of the first heat dissipation plate group (21), and the two second heat dissipation plate groups (22) are parallel to each other and arranged at intervals.

3. A wind driven electric power generator as claimed in claim 2, wherein The flow guiding component (23) comprises a first flow guiding component (231) and a second flow guiding component (232); the first flow guiding component (231) is arranged on the first heat dissipation plate group (21), and the first flow guiding component (231) is used for guiding airflow to flow from the side of the first heat dissipation plate group (21) away from the second heat dissipation plate group (22) to the side of the first heat dissipation plate group (21) toward the second heat dissipation plate group (22); the second flow guiding component (232) is arranged on the second heat dissipation plate group (22), and the second flow guiding component (232) is used for guiding airflow to flow from the side of the second heat dissipation plate group (22) away from the other second heat dissipation plate group (22) to the side of the second heat dissipation plate group (22) toward the other second heat dissipation plate group (22).

4. A wind driven electric power generator as claimed in claim 3 wherein, The first flow guiding component (231) is a suction fan, and the first flow guiding component (231) is arranged on the side of the first heat dissipation plate group (21) toward the second heat dissipation plate group (22); and / or, the first flow guiding component (231) is a blowing fan, and the first flow guiding component (231) is arranged on the side of the first heat dissipation plate group (21) away from the second heat dissipation plate group (22); and / or, the second flow guiding component (232) is a suction fan, and the second flow guiding component (232) is arranged on the side of the second heat dissipation plate group (22) toward the other second heat dissipation plate group (22); and / or, the second flow guiding component (232) is a blowing fan, and the second flow guiding component (232) is arranged on the side of the second heat dissipation plate group (22) away from the other second heat dissipation plate group (22).

5. A wind driven electric power generator as claimed in claim 1, wherein The heat dissipation device (2) comprises two first heat dissipation plate groups (21) and two second heat dissipation plate groups (22), the two first heat dissipation plate groups (21) are parallel to each other and are arranged in a first horizontal direction (X), the two second heat dissipation plate groups (22) are parallel to each other and are arranged in a second horizontal direction (Y), and the two first heat dissipation plate groups (21) and the two second heat dissipation plate groups (22) are connected to form a closed annular structure. The heat dissipation device (2) further comprises a sealing plate (24) arranged at the top of the first heat dissipation plate group (21) and the second heat dissipation plate group (22), and the sealing plate (24) is sealingly connected with the two first heat dissipation plate groups (21) and the two second heat dissipation plate groups (22) respectively, and the sealing plate (24) and the annular structure form a heat exchange cavity. The flow guide component (23) guides the airflow to flow into the heat exchange cavity through the first heat dissipation hole and / or the second heat dissipation hole, and the airflow flows out of the heat exchange cavity through the flow guide component (23). The first horizontal direction (X) is perpendicular to the second horizontal direction (Y).

6. A wind driven electric power generator as claimed in claim 5 wherein, The flow guide component (23) is arranged on the first heat dissipation plate group (21), the second heat dissipation plate group (22), or the sealing plate (24).

7. A wind driven electric power generator as claimed in claim 5 wherein, The flow guide component (23) is an air suction fan, and the flow guide component (23) is arranged outside the heat exchange cavity.

8. A wind driven electric power generator as claimed in claim 5 wherein, Two side walls of the nacelle (1) are arranged opposite to each other in a vertical direction (Z), and a through hole is formed in each of the two side walls, the nacelle (1) is internally provided with a communication pipe (25), two ends of the communication pipe (25) are respectively communicated with the two through holes, the flow guide component (23) is arranged at one of the through holes, and the heat dissipation device (2) is communicated with the other through hole. The first horizontal direction (X), the second horizontal direction (Y), and the vertical direction (Z) are perpendicular to each other in pairs.

9. A wind generator according to claim 8, characterised in that The flow guide component (23) is an air suction fan, and the flow guide component (23) guides the airflow to flow into the heat exchange cavity through the first heat dissipation hole and / or the second heat dissipation hole, and the airflow flows through the communication pipe (25) from the heat exchange cavity and flows out of the nacelle (1) through the flow guide component (23).

10. A wind power unit, characterized in that The wind turbine generator set comprises: a foundation; a tower arranged above the foundation; the wind turbine generator according to any one of claims 1 to 9 is arranged at the top of the tower.

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