Heat dissipation device for wind driven generator

Abstract

The utility model discloses a heat dissipation device for a wind driven generator, and relates to the technical field of wind power generation. The heat dissipation device for the wind driven generator comprises a shell, a driving assembly, a transmission assembly and a wind shield, the shell is provided with an opening and a cabin space communicated with the opening, the driving assembly comprises a mounting base, a driving module and a temperature control spring, and the mounting base is connected to the inner wall of the cabin space; the transmission assembly comprises a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, and the driving module can drive the first connecting rod and the third connecting rod so as to drive the wind shield to conduct the opening. According to the device, the ventilation effect is optimized by automatically adjusting the position of the wind shield under different temperature threshold values, the internal temperature of the cabin is effectively reduced, and the heat dissipation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of wind power generation, in particular to a heat dissipation device for a wind turbine. Background Art

[0002] In the existing heat dissipation technology of wind turbine generator sets, the heat dissipation system usually adopts a single heat dissipation mechanism and cannot perform multi-stage adjustment according to the change of the temperature inside the nacelle. Therefore, the single heat dissipation mechanism is prone to cause overheating of the equipment in high-load or high-temperature environments, affecting its normal operation and service life. Summary of the Utility Model

[0003] Based on this, it is necessary to provide a heat dissipation device for a wind turbine, aiming to solve the problem that in the existing heat dissipation technology of wind turbine generator sets, the single heat dissipation mechanism of the heat dissipation system cannot perform multi-stage adjustment according to the change of the temperature inside the nacelle, resulting in the equipment being prone to overheat in high-load or high-temperature environments, affecting its normal operation and service life.

[0004] In a first aspect, the utility model provides a heat dissipation device for a wind turbine, including a housing, a driving assembly, a transmission assembly and a wind deflector. The housing is provided with an opening and a nacelle space communicated with the opening. The driving assembly includes a mounting seat, a driving module and a temperature control spring. The mounting seat is connected to the inner wall of the nacelle space. The transmission assembly includes a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod. One end of the first connecting rod is rotatably connected to one end of the second connecting rod. The other end of the second connecting rod is rotatably connected to one end of the third connecting rod. The other end of the third connecting rod is rotatably connected to one end of the fourth connecting rod. The other end of the fourth connecting rod is rotatably connected to the other end of the first connecting rod. The fourth connecting rod is connected to the wind deflector. The temperature control spring is elastically connected to the connection between the first connecting rod and the second connecting rod and the connection between the third connecting rod and the fourth connecting rod. The driving module is rotatably connected to the connection between the first connecting rod and the second connecting rod and is rotatably connected to the mounting seat. The driving module can drive the first connecting rod and the third connecting rod to drive the wind deflector to open the opening.

[0005] In one embodiment, the driving assembly further includes two guide rods. One of the two guide rods is rotatably connected to the connection between the first connecting rod and the second connecting rod, and the other of the two guide rods is rotatably connected to the connection between the third connecting rod and the fourth connecting rod. Two ends of the temperature control spring are respectively elastically connected to the two guide rods.

[0006] In one embodiment, the driving module further includes a sleeve and a telescopic rod. The mounting seat is rotatably connected to the sleeve. The telescopic rod is disposed inside the sleeve. A kerosene medium is provided between the sleeve and the telescopic rod. One end of the telescopic rod is rotatably connected to the connection point of the first link and the second link.

[0007] In one embodiment, an avoidance groove for avoiding the wind deflector is provided on the surface of the housing.

[0008] In one embodiment, a plurality of driving components are provided and are spaced along the extending direction of the housing. A plurality of transmission components, wind deflectors and openings are provided and are respectively arranged in one-to-one correspondence with the driving components.

[0009] In one embodiment, the heat dissipation device for a wind turbine includes two brackets. The two brackets are respectively connected to both sides of the housing. Ventilation openings are provided above the brackets. Each ventilation opening is spaced along the extending direction of the bracket.

[0010] In one embodiment, the bracket further includes a wind guiding plate. The wind guiding plate is connected to the inner wall of the ventilation opening and is located on one side of the ventilation opening.

[0011] Implementing the embodiments of the present invention will have the following beneficial effects:

[0012] Adopting a heat dissipation device for a wind turbine of the present invention, the heat dissipation device for a wind turbine includes a housing, a driving component, a transmission component and a wind deflector. The housing is provided with an opening and a cabin space communicating with the opening. The driving component includes a mounting seat, a driving module and a temperature control spring. The mounting seat is connected to the inner wall of the cabin space. The transmission component includes a first link, a second link, a third link and a fourth link. One end of the first link is rotatably connected to one end of the second link. The other end of the second link is rotatably connected to one end of the third link. The other end of the third link is rotatably connected to one end of the fourth link. The other end of the fourth link is rotatably connected to the other end of the first link. The fourth link is connected to the wind deflector. The temperature control spring is elastically connected to the connection point of the first link and the second link, and the connection point of the third link and the fourth link. The driving module is rotatably connected to the connection point of the first link and the second link and is rotatably connected to the mounting seat. The driving module can drive the first link and the third link, thereby driving the wind deflector to open the opening. The device automatically adjusts the position of the wind deflector at different temperature thresholds, thereby optimizing the ventilation effect, effectively reducing the temperature inside the engine room, and improving the heat dissipation efficiency. Description of the Drawings

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0014] Among them:

[0015] Figure 1 It is an axonometric schematic diagram of a heat dissipation device for a wind turbine in an embodiment;

[0016] Figure 2 It is a schematic diagram of the first state of a heat dissipation device for a wind turbine in an embodiment;

[0017] Figure 3 It is Figure 2 A sectional view taken along line A-A of the first state of the heat dissipation device for a wind turbine shown;

[0018] Figure 4 It is Figure 3 A partially enlarged schematic diagram of part D of the heat dissipation device for a wind turbine shown;

[0019] Figure 5 It is a schematic diagram of the second state of a heat dissipation device for a wind turbine in an embodiment;

[0020] Figure 6 It is Figure 5 A sectional view taken along line B-B of the second state of the heat dissipation device for a wind turbine shown;

[0021] Figure 7 It is Figure 6 A partially enlarged schematic diagram of part E of the heat dissipation device for a wind turbine shown;

[0022] Figure 8 It is a schematic diagram of the third state of a heat dissipation device for a wind turbine in an embodiment;

[0023] Figure 9 It is Figure 8 A sectional view taken along line C-C of the third state of the heat dissipation device for a wind turbine shown;

[0024] Figure 10 It is Figure 9 A partially enlarged schematic diagram of part F of the heat dissipation device for a wind turbine shown.

[0025] Reference numerals:

[0026] 1. Housing; 11. Opening; 12. Inner cabin space; 13. Avoidance groove;

[0027] 2. Driving assembly; 21. Mounting base; 22. Driving module; 221. Sleeve; 222. Telescopic rod; 23. Temperature control spring; 24. Guide rod;

[0028] 3. Transmission assembly; 31. First connecting rod; 32. Second connecting rod; 33. Third connecting rod; 34. Fourth connecting rod;

[0029] 4. Windshield;

[0030] 5. Bracket; 51. Vent; 52. Air deflector. Detailed implementation manner

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0032] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0033] In the description of the present invention, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0034] In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0035] It should be noted that the features in the embodiments of the present invention can be combined with each other without conflict.

[0036] Please refer to Figures 1 to 10 for a description of a heat dissipation device for a wind turbine provided by the present invention.

[0037] In this embodiment, the heat dissipation device for a wind turbine includes a housing 1, a driving assembly 2, a transmission assembly 3, and a wind deflector 4. The housing 1 is provided with an opening 11 and an in-cabin space 12 communicating with the opening 11. The driving assembly 2 includes a mounting seat 21, a driving module 22, and a temperature control spring 23. The mounting seat 21 is connected to the inner wall of the in-cabin space 12. The transmission assembly 3 includes a first connecting rod 31, a second connecting rod 32, a third connecting rod 33, and a fourth connecting rod 34. One end of the first connecting rod 31 is rotatably connected to one end of the second connecting rod 32, the other end of the second connecting rod 32 is rotatably connected to one end of the third connecting rod 33, the other end of the third connecting rod 33 is rotatably connected to one end of the fourth connecting rod 34, and the other end of the fourth connecting rod 34 is rotatably connected to the other end of the first connecting rod 31. The fourth connecting rod 34 is connected to the wind deflector 4. The temperature control spring 23 is elastically connected to the connection between the first connecting rod 31 and the second connecting rod 32, and the connection between the third connecting rod 33 and the fourth connecting rod 34. The driving module 22 is rotatably connected to the connection between the first connecting rod 31 and the second connecting rod 32 and is rotatably connected to the mounting seat 21. The driving module 22 can drive the first connecting rod 31 and the third connecting rod 33, thereby driving the wind deflector 4 to open the opening 11.

[0038] It can be understood that the heat dissipation device for a wind turbine includes a housing 1, a driving assembly 2, a transmission assembly 3, and a wind deflector 4. The housing 1 is provided with an opening 11 and an in-cabin space 12 communicating with the opening 11. The driving assembly 2 includes a mounting seat 21, a driving module 22, and a temperature control spring 23. The mounting seat 21 is connected to the inner wall of the in-cabin space 12. The transmission assembly 3 includes a first connecting rod 31, a second connecting rod 32, a third connecting rod 33, and a fourth connecting rod 34. One end of the first connecting rod 31 is rotatably connected to one end of the second connecting rod 32, the other end of the second connecting rod 32 is rotatably connected to one end of the third connecting rod 33, the other end of the third connecting rod 33 is rotatably connected to one end of the fourth connecting rod 34, and the other end of the fourth connecting rod 34 is rotatably connected to the other end of the first connecting rod 31. The fourth connecting rod 34 is connected to the wind deflector 4. The temperature control spring 23 is elastically connected to the connection between the first connecting rod 31 and the second connecting rod 32, and the connection between the third connecting rod 33 and the fourth connecting rod 34. The driving module 22 is rotatably connected to the connection between the first connecting rod 31 and the second connecting rod 32 and is rotatably connected to the mounting seat 21. The driving module 22 can drive the first connecting rod 31 and the third connecting rod 33, thereby driving the wind deflector 4 to open the opening 11. Specifically, the mounting seat 21 is fixedly connected to the inner wall of the in-cabin space 12, and the fourth connecting rod 34 is fixedly connected to the wind deflector 4. When the temperature control spring 23 extends, it pushes the first connecting rod 31 and the third connecting rod 33 upward. When the temperature control spring 23 retracts, it resets the first connecting rod 31 and the third connecting rod 33. The four-bar mechanism makes the wind deflector 4 more stable during the adjustment process. The device automatically adjusts the position of the wind deflector 4 at different temperature thresholds, thereby optimizing the ventilation effect, effectively reducing the temperature inside the engine room, and improving the heat dissipation efficiency.

[0039] It should be noted that when the temperature in the engine room reaches the first temperature threshold, the driving component 2 expands and contracts for the first time to drive the transmission component 3 to drive the windshield 4 to reach the first position. When the temperature in the engine room reaches the second temperature threshold, the driving component 2 expands and contracts for the second time to drive the transmission component 3 to drive the windshield 4 to reach the second position.

[0040] In one embodiment, as Figure 6 and Figure 7 shown, the driving component 2 further includes two guide rods 24. One of the two guide rods 24 is rotatably connected to the connection between the first connecting rod 31 and the second connecting rod 32, and the other of the two guide rods 24 is rotatably connected to the connection between the third connecting rod 33 and the fourth connecting rod 34. Both ends of the temperature control spring 23 are elastically connected to the two guide rods 24 respectively. The temperature control spring 23 is a special spring that can generate corresponding deformations according to temperature changes. When the temperature in the engine room reaches the first temperature threshold, the temperature control spring 23 preferentially expands and contracts. The temperature control spring 23 elongates along the direction of the guide rod 24, jacks up the transmission component 3, and drives the windshield 4 away from the opening 11 and reaches the first position. The temperature control spring 23 can respond to the changes in the cabin environment in real time and accurately control the ventilation volume.

[0041] Furthermore, the material of the temperature control spring 23 can be nitinol. When the temperature rises, due to the large expansion coefficient of nitinol, the elongation amplitude of nitinol is large, driving the temperature control spring 23 to elongate. When the temperature decreases, nitinol retracts, and the deformation difference of nitinol drives the temperature control spring 23 to retract. This characteristic enables the temperature control spring 23 made of nitinol to automatically and accurately adjust its position or shape when the temperature changes without manual intervention.

[0042] In one embodiment, as Figure 4 and Figure 7 shown, the driving module 22 further includes a sleeve 221 and a telescopic rod 222. The mounting seat 21 is rotatably connected to the sleeve 221. The telescopic rod 222 is arranged in the sleeve 221. There is a kerosene medium between the sleeve 221 and the telescopic rod 222. One end of the telescopic rod 222 is rotatably connected to the connection between the first connecting rod 31 and the second connecting rod 32. After the kerosene medium senses the hot air in the cabin, it expands and contracts. The kerosene medium drives the telescopic rod 222 to move in the sleeve 221, jacks up the transmission component 3, and thus moves the windshield 4 away from the opening 11 and reaches the second position. This device realizes multi-stage adjustment by automatically adjusting the position of the windshield 4 at different temperature thresholds.

[0043] In one embodiment, as Figure 9 shown, an avoidance groove 13 for avoiding the windshield 4 is arranged on the surface of the housing 1. By arranging the avoidance groove 13, during the movement of the windshield 4, the windshield 4 will not interfere with the surface of the housing 1.

[0044] In one embodiment, as Figure 3 shown, a plurality of driving components 2 are provided and are arranged at intervals along the extending direction of the housing 1. A plurality of transmission components 3, windshields 4 and openings 11 are provided, and are respectively arranged in one-to-one correspondence with the driving components 2. When the temperature in the wind turbine nacelle rises, the plurality of driving components 2 simultaneously drive the plurality of transmission components 3 to drive the plurality of windshields 4 to move away from the opening 11. The plurality of driving components 2 can respectively respond to different temperature ranges or local temperature changes to achieve more refined ventilation adjustment.

[0045] In one embodiment, as Figure 1 and Figure 2 shown, the heat dissipation device for a wind turbine includes two brackets 5, and the two brackets 5 are respectively connected to both sides of the housing 1. Ventilation openings 51 are provided above the brackets 5, and the ventilation openings 51 are arranged at intervals along the extending direction of the brackets 5. Specifically, the two brackets 5 are fixedly connected to both sides of the housing 1. The brackets 5 cooperate with the ventilation openings 51 to assist ventilation, effectively reducing the temperature in the wind turbine nacelle.

[0046] In one embodiment, as Figure 1 shown, the bracket 5 further includes a wind guide plate 52, and the wind guide plate 52 is connected to the inner wall of the ventilation opening 51 and is located on one side of the ventilation opening 51. Specifically, the wind guide plate 52 is fixedly connected to the inner wall of the ventilation opening 51. The wind guide plate 52 adjusts the air inlet direction to a certain extent, so that the disordered wind enters the nacelle along one direction, thereby reducing the impact of turbulence and irregular airflows on the equipment, and making the driving component 2, the transmission component 3 and the housing 1 not easily damaged, and extending the service life.

[0047] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0048] The above-disclosed are only the preferred embodiments of the present invention, and of course cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A heat dissipation device for a wind turbine, characterized in that: The heat dissipation device for a wind turbine generator comprises a shell, a drive assembly, a transmission assembly and a windshield. The shell is provided with an opening and a cabin space connected to the opening. The drive assembly comprises a mounting seat, a drive module and a temperature control spring. The mounting seat is connected to the inner wall of the cabin space. The transmission assembly comprises a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod. One end of the first connecting rod is rotatably connected to one end of the second connecting rod, the other end of the second connecting rod is rotatably connected to one end of the third connecting rod, the other end of the third connecting rod is rotatably connected to one end of the fourth connecting rod, the other end of the fourth connecting rod is rotatably connected to the other end of the first connecting rod, and the fourth connecting rod is connected to the windshield. The temperature control spring is elastically connected to the connection between the first connecting rod and the second connecting rod, and the connection between the third connecting rod and the fourth connecting rod. The drive module is rotatably connected to the connection between the first connecting rod and the second connecting rod, and is rotatably connected to the mounting seat. The drive module can drive the first connecting rod and the third connecting rod, thereby driving the windshield to conduct the opening.

2. The heat dissipation device for a wind turbine generator according to claim 1, characterized in that: The driving assembly also includes two guide rods, one of the two guide rods is rotatably connected to the connection between the first connecting rod and the second connecting rod, and the other of the two guide rods is rotatably connected to the connection between the third connecting rod and the fourth connecting rod, and the two ends of the temperature control spring are elastically connected to the two guide rods respectively.

3. The heat dissipation device for a wind turbine generator according to claim 1, characterized in that: The driving module also includes a sleeve and a telescopic rod. The mounting seat is rotatably connected to the sleeve. The telescopic rod is arranged in the sleeve. A kerosene medium is arranged between the sleeve and the telescopic rod. One end of the telescopic rod is rotatably connected to the connection between the first connecting rod and the second connecting rod.

4. The heat dissipation device for a wind turbine generator according to claim 1, characterized in that: The shell surface is provided with an avoidance groove for avoiding the wind shield plate.

5. The heat dissipation device for a wind turbine generator according to claim 1, characterized in that: There are a plurality of drive assemblies, which are arranged at intervals along the extension direction of the shell. There are a plurality of transmission assemblies, windshield plates and openings, which are arranged one-to-one with the drive assemblies respectively.

6. The heat dissipation device for a wind turbine generator according to claim 1, characterized in that: The heat dissipation device for a wind turbine generator comprises two brackets, the two brackets are respectively connected to two sides of the shell, vents are arranged above the brackets, and the vents are arranged at intervals along the extension direction of the brackets.

7. The heat dissipation device for a wind turbine generator according to claim 6, characterized in that: The bracket also includes an air guide plate, which is connected to the inner wall of the vent and is located on one side of the vent.

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