A variable pitch control cabinet structure with partitioning function

Abstract

This utility model relates to the field of wind power equipment technology, specifically to a pitch control cabinet structure with partitioning function. It includes a bottom shell, a top cover mounted on the top of the bottom shell, multiple partitioning mechanisms inside the bottom shell, a power mechanism on the top of the top cover, and a heat absorption mechanism at the bottom of the top cover. Each partitioning mechanism includes a fixing box, the bottom of which is fixedly connected to the bottom of the inner wall of the bottom shell. A fixing shaft is fixedly connected inside the fixing box, and multiple springs are fixedly connected to the surface of the fixing shaft. One end of each spring is fixedly connected to a common shielding film, and one end of the shielding film passes through the fixing box and is fixedly connected to a fixing strip. This utility model uses the fixing shaft, springs, and shielding film to allow the bottom of the fixing box to adhere to the inner wall of the bottom shell. Pulling the fixing strip stretches the shielding film, causing it to continuously unwind and extend from the fixing shaft. When the shielding film reaches the required length, the fixing strip is magnetically connected to an adjacent fixing box, thus partitioning the space inside the bottom shell.

Description

Technical Field

[0001] This utility model relates to the field of wind power equipment technology, specifically to a pitch control cabinet structure with partitioning function. Background Technology

[0002] The pitch control unit is a key control device for wind turbine generators. It is installed inside the hub and its core function is to precisely control the pitch angle (i.e., blade angle) of each blade to optimize wind capture efficiency and to quickly feather the blades (turn the blades to 90 degrees) in emergency situations such as strong winds, thereby achieving pneumatic braking and ensuring the safety of the wind turbine.

[0003] The existing pitch control unit has the following problems during use: Firstly, pitch control cabinets generally cannot be divided into multiple zones, making it impossible to isolate different working areas. However, some components in the pitch control cabinet may short-circuit and catch fire. Due to the lack of containment measures, the fire may quickly ignite other components, making it impossible to effectively suppress the spread of the fire and thus causing economic losses. Secondly, pitch control cabinets typically rely on a single airflow circulation from a cooling fan to cover the entire cabinet space for unified heat dissipation. This makes it impossible to dissipate heat to specific parts according to the installation requirements of components, which can easily lead to insufficient heat dissipation of high-heat components, frequent overheating failures, and low heat dissipation efficiency. In view of this, we propose a pitch control cabinet structure with zoning function. Utility Model Content

[0004] This utility model addresses the technical problems existing in the prior art by providing a variable pitch control cabinet structure with partitioning function to solve the problems of existing solutions.

[0005] To achieve the above objectives, this utility model provides a variable pitch control cabinet structure with partitioning function, including a bottom shell, and a top cover installed on the top of the bottom shell. The bottom shell is characterized by having multiple partitioning mechanisms inside for partitioning the internal space, with these partitioning mechanisms connected end-to-end. The top of the top cover is equipped with a power mechanism for generating negative pressure, and the bottom of the top cover is equipped with multiple heat-absorbing mechanisms for selectively absorbing heat from different areas inside the bottom shell. These heat-absorbing mechanisms are located within the power mechanism. The partitioning mechanisms are identical in structure. Each partitioning mechanism includes a fixed box. The bottom of the fixed box is magnetically connected to the bottom of the inner wall of the bottom shell. A fixed shaft is fixedly connected inside the fixed box. Multiple springs are fixedly connected to the surface of the fixed shaft. One end of each spring is fixedly connected to the same shielding film, and the shielding film is wound around the fixed shaft. One end of the shielding film passes through the fixed box and is fixedly connected to a fixed strip. Adjacent fixed strips and the fixed box are magnetically connected.

[0006] The beneficial effects of this utility model are: 1) In the partitioned pitch control cabinet structure, the bottom of the fixing box is attached to the inner wall of the bottom shell by means of a fixed shaft, a spring, and a shielding film, so that the fixing box can be used immediately. The fixing box can also be used at an angle. Pulling the fixing bar will lengthen the shielding film, so that the shielding film will be continuously unwound and extended from the fixed shaft. At the same time, the spring is pulled. When the shielding film reaches the required length, the fixing bar is magnetically connected to the adjacent fixing box, thus partitioning the space inside the bottom shell. This prevents the fire from being out of control when some components catch fire, effectively suppresses the spread of fire, and minimizes economic losses.

[0007] 2) In the partitioned pitch control cabinet structure, the nearby collection cover is moved to the vicinity of the component through the corrugated pipe, collection cover and first conduit. At the same time, the corrugated pipe is pulled to extend. Then the length of the telescopic rod is adjusted and the telescopic rod is fixed on the top cover, so that the cooling fan rotates and generates negative pressure in the sealed box. This allows the hot air near the heat-generating component to enter the sealed box through the collection cover, second conduit, corrugated pipe and first conduit, and then be discharged to the external environment by the cooling fan. This is to dissipate heat from specific parts, fully dissipate heat from high-heat-generating components and improve heat dissipation efficiency.

[0008] Based on the above technical solution, the present invention can be further improved as follows: As a further improvement to this technical solution, the multiple heat absorption mechanisms have the same structure. Each heat absorption mechanism includes a first conduit. The bottom of the top cover has multiple mounting holes. The first conduit is fixedly connected to the mounting holes. The bottom end of the first conduit is fixedly connected to a corrugated pipe. One end of the corrugated pipe is fixedly connected to a second conduit. One end of the second conduit is fixedly connected to a collection cover.

[0009] The beneficial effect of adopting the above-mentioned further solution is that, by setting up the collection hood and the bellows, when the components in a specific area inside the bottom shell generate a lot of heat, the heat dissipation is focused on them. The nearby collection hood is moved to the vicinity of the component, and at the same time the bellows is pulled to extend. The hot air near the component flows along the collection hood, the second duct, the bellows and the first duct into the power mechanism under the action of the power mechanism, and is ready to be discharged to the external environment.

[0010] As a further improvement to this technical solution, an installation strip is fixedly connected to the surface of the second conduit, and two telescopic rods are fixedly connected to the installation strip. The output ends of the two telescopic rods are respectively located at the top two ends of the installation strip, and the bottom ends of the telescopic rods are fixedly connected to the top cover.

[0011] The beneficial effect of adopting the above-mentioned further solution is that, by setting the telescopic rod and the mounting strip, the mounting strip moves along with the collection cover when it moves. When the collection cover moves to a specific position, the length of the telescopic rod is adjusted so that the bottom end of the telescopic rod contacts the bottom of the top cover and the telescopic rod is fixed to the top cover. In this way, the collection cover can be fixed so that it can stably dissipate heat from the high-heat-generating components for a long time.

[0012] As a further improvement to this technical solution, a piston block is snapped onto the top end of the first conduit, and a pull rope is fixedly connected to one end of the piston block. The other end of the pull rope is also fixedly connected to the top cover.

[0013] The beneficial effect of adopting the above-mentioned further solution is that, by setting the piston block, when the collection cover corresponding to the piston block moves to the vicinity of the heating element to absorb heat, the piston block is opened, so that the hot air absorbed by the corresponding collection cover can enter the power mechanism through the first conduit and be ready to be discharged to the external environment. If the collection cover corresponding to the piston block does not dissipate heat from the component, the piston block is not removed to close the corresponding first conduit, thereby improving the heat dissipation efficiency. In addition, the pull rope can prevent the piston block from being lost.

[0014] As a further improvement to this technical solution, the power mechanism includes a sealed box, and multiple first conduits and pull ropes are disposed inside the sealed box. One end of the sealed box is provided with an installation groove, and a cooling fan is fixedly installed on one side of the installation groove.

[0015] The beneficial effect of adopting the above-mentioned further solution is that, by setting up a cooling fan, the cooling fan rotates and generates negative pressure in the sealed box, thereby allowing hot air near the heat-generating element to enter the sealed box through the collection cover and the first duct, and then be discharged to the external environment, so as to specifically dissipate heat to a specific area inside the bottom shell and improve heat dissipation efficiency.

[0016] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall external structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the bottom shell of this utility model; Figure 3 This is a schematic diagram of the structure of the removal power mechanism of this utility model; Figure 4 This is a first-view sectional view of the present invention; Figure 5 This is a second-view sectional view of the present invention; Figure 6This utility model Figure 4 A magnified view of part A.

[0018] The meanings of the labels in the diagram are as follows: 1. Bottom shell; 2. Top cover; 3. Partitioning mechanism; 31. Fixing box; 32. Fixing shaft; 33. Spring; 34. Shielding membrane; 35. Fixing strip; 4. Power mechanism; 41. Sealing box; 42. Mounting slot; 43. Cooling fan; 5. Heat absorption mechanism; 51. First conduit; 52. Mounting hole; 53. Bellows; 54. Second conduit; 55. Collection cover; 56. Mounting strip; 57. Telescopic rod; 58. Piston block; 59. Pull rope. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-6 As shown, this embodiment provides a variable pitch control cabinet structure with partitioning function, including a bottom shell 1, a top cover 2 installed on the top of the bottom shell 1, and multiple partitioning mechanisms 3 for partitioning the internal space of the bottom shell 1, which are connected end to end. A power mechanism 4 for generating negative pressure is installed on the top of the top cover 2, and multiple heat-absorbing mechanisms 5 for selectively absorbing heat from different areas inside the bottom shell 1 are installed at the bottom of the top cover 2. The heat-absorbing mechanisms 5 are located within the power mechanism 4, wherein: Multiple partitioning mechanisms 3 have the same structure. Each partitioning mechanism 3 includes a fixed box 31, on which a magnet is mounted. The magnet has a certain degree of magnetism. The bottom of the fixed box 31 is magnetically connected to the bottom of the inner wall of the bottom shell 1. A fixed shaft 32 is fixedly connected inside the fixed box 31. Multiple springs 33 are fixedly connected to the surface of the fixed shaft 32, such as... Figure 6 As shown, multiple springs 33 are fixedly connected to the same shielding film 34 at one end. The shielding film 34 is made of high molecular polymer as the base material, such as PET, PI, PP, etc., and is made of composite fire retardant, such as flame retardant and ceramic powder, through processes such as coating, vapor deposition, and blending. The shielding film 34 is wound on the fixed shaft 32. One end of the shielding film 34 passes through the fixed box 31 and is fixedly connected to the fixing strip 35. The fixing strip 35 is also equipped with a magnet. The magnet has a certain magnetism. Adjacent fixing strips 35 and fixed boxes 31 are magnetically connected. The magnetic connection between the fixed box 31, the fixing strips 35 and the bottom shell 1 eliminates the need to tighten and loosen the bolts with a screwdriver, making the disassembly and assembly process simpler and easier.

[0021] Furthermore, the multiple heat-absorbing mechanisms 5 have the same structure. Each heat-absorbing mechanism 5 includes a first conduit 51. The bottom of the top cover 2 has multiple mounting holes 52. The first conduit 51 is fixedly connected to the mounting holes 52. A corrugated pipe 53 is fixedly connected to the bottom end of the first conduit 51. A second conduit 54 is fixedly connected to one end of the corrugated pipe 53. A collection cover 55 is fixedly connected to one end of the second conduit 54. Through the arrangement of the collection cover 55 and the corrugated pipe 53, such as... Figure 5 As shown, when the components in a specific area inside the bottom shell 1 generate a lot of heat, the heat dissipation is focused on them. The nearby collection cover 55 is moved to the vicinity of the component, and at the same time, the bellows 53 is pulled to extend. The hot air near the component flows into the power mechanism 4 along the collection cover 55, the second duct 54, the bellows 53 and the first duct 51 under the action of the power mechanism 4, and is ready to be discharged to the outside environment.

[0022] Furthermore, an installation strip 56 is fixedly connected to the surface of the second conduit 54. Two telescopic rods 57 are fixedly connected to the installation strip 56. The output ends of the two telescopic rods 57 are respectively located at the top two ends of the installation strip 56. The bottom ends of the telescopic rods 57 are fixedly connected to the top cover 2 by bolts or other methods, which is existing technology and will not be described in detail. With the installation strip 56 and the telescopic rods 57, the installation strip 56 moves with the collection cover 55. When the collection cover 55 moves to a specific position, the length of the telescopic rods 57 is adjusted so that the bottom end of the telescopic rods 57 contacts the bottom of the top cover 2 and the telescopic rods 57 are fixed to the top cover 2. In this way, the collection cover 55 can be fixed so that it can stably dissipate heat from the high-heat-generating element for a long time.

[0023] Furthermore, a piston block 58 is snapped onto the top of the first conduit 51. A pull rope 59 is fixedly connected to one end of the piston block 58, and the other end of the pull rope 59 is also fixedly connected to the top cover 2. With the setting of the piston block 58, when the collection cover 55 corresponding to the piston block 58 moves to the vicinity of the heating element to absorb heat, the piston block 58 is opened, so that the hot air absorbed by the corresponding collection cover 55 can enter the power mechanism 4 through the first conduit 51 and be ready to be discharged to the outside environment. If the collection cover 55 corresponding to the piston block 58 does not dissipate heat from the component, the piston block 58 is not removed to close the corresponding first conduit 51, thereby improving the heat dissipation efficiency. The pull rope 59 can also prevent the piston block 58 from being lost.

[0024] Furthermore, the power mechanism 4 includes a sealed box 41, with multiple first conduits 51 and pull ropes 59 all disposed inside the sealed box 41. One end of the sealed box 41 has an installation groove 42, and a cooling fan 43 is fixedly installed on one side of the installation groove 42. With the cooling fan 43, the cooling fan 43 rotates, generating negative pressure in the sealed box 41, thereby allowing hot air near the heating element to enter the sealed box 41 through the collection cover 55 and the first conduits 51, and then be discharged to the external environment, so as to specifically dissipate heat to a specific area inside the bottom shell 1 and improve heat dissipation efficiency.

[0025] In summary, the working principle of this solution is as follows: When it is necessary to partition the internal space of the bottom shell 1, multiple partitioning mechanisms 3 are placed at the bottom of the bottom shell 1, so that the bottom of the fixing box 31 is attached to the inner wall of the bottom shell 1. The attachment method includes, but is not limited to, using a magnetic base or an electromagnet. Both of these can be directly purchased and installed on the existing market, and the usage and corresponding measures are not difficult for technicians in related fields to understand (such as the contact surface must be metal). The fixing box 31 is plug-and-play and can also be used at an angle to further increase the flexibility of partitioning. The operator pulls the fixing strip 35. The shielding film 34 is stretched, causing it to continuously unwind and extend from the fixed shaft 32. At the same time, the spring 33 is pulled. When the shielding film 34 reaches the required length, the fixing strip 35 is magnetically connected to the adjacent fixing box 31, and the fixing strip 35 near the bottom shell 1 is magnetically connected to the inner wall of the bottom shell 1. In this way, the space inside the bottom shell 1 can be divided according to the usage requirements. When the partitioning mechanism 3 needs to be disassembled, the fixing box 31 and the fixing strip 35 can be removed directly, the spring 33 returns to its original state, and the shielding film 34 can be rewound. When it is necessary to dissipate heat from a heat-generating element in a specific working area, the nearby collection cover 55 is moved to the vicinity of the element, while the bellows 53 is pulled to extend. Then, the length of the telescopic rod 57 is adjusted so that the bottom end of the telescopic rod 57 contacts the bottom of the top cover 2, and the telescopic rod 57 is fixed to the top cover 2. This fixes the collection cover 55, causing the cooling fan 43 to rotate and generate negative pressure in the sealed box 41. This allows hot air near the heat-generating element to enter the sealed box 41 through the collection cover 55, the second duct 54, the bellows 53, and the first duct 51, and then be discharged to the external environment through the cooling fan 43.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A variable pitch cabinet body structure with partition function, comprising a bottom shell (1), a top cover (2) is installed on the top of the bottom shell (1), characterized in that: The bottom shell (1) is provided with multiple partitioning mechanisms (3) for partitioning the internal space of the bottom shell (1), and the multiple partitioning mechanisms (3) are connected end to end. The top cover (2) is provided with a power mechanism (4) for generating negative pressure. The bottom of the top cover (2) is provided with multiple heat-absorbing mechanisms (5) for specifically absorbing heat from different areas inside the bottom shell (1). The heat-absorbing mechanisms (5) are located inside the power mechanism (4), wherein: The partitioning mechanisms (3) have the same structure. Each partitioning mechanism (3) includes a fixed box (31). The bottom of the fixed box (31) is magnetically connected to the bottom of the inner wall of the bottom shell (1). A fixed shaft (32) is fixedly connected inside the fixed box (31). Multiple springs (33) are fixedly connected to the surface of the fixed shaft (32). One end of each spring (33) is fixedly connected to the same shielding film (34). The shielding film (34) is wound around the fixed shaft (32). One end of the shielding film (34) passes through the fixed box (31) and is fixedly connected to a fixed strip (35). Adjacent fixed strips (35) and the fixed box (31) are magnetically connected.

2. The variable pitch cabinet structure with partition function according to claim 1, characterized in that: The heat absorption mechanisms (5) have the same structure. Each heat absorption mechanism (5) includes a first conduit (51). The bottom of the top cover (2) is provided with multiple mounting holes (52). The first conduit (51) is fixedly connected in the mounting holes (52). The bottom end of the first conduit (51) is fixedly connected to a corrugated pipe (53). One end of the corrugated pipe (53) is fixedly connected to a second conduit (54). One end of the second conduit (54) is fixedly connected to a collection cover (55).

3. The pitch control cabinet structure with partitioning function according to claim 2, characterized in that: The second conduit (54) is fixedly connected to an installation strip (56), and the installation strip (56) is fixedly connected to two telescopic rods (57). The output ends of the two telescopic rods (57) are respectively located at the top two ends of the installation strip (56), and the bottom ends of the telescopic rods (57) are fixedly connected to the top cover (2).

4. The pitch control cabinet structure with partitioning function according to claim 3, characterized in that: A piston block (58) is snapped onto the top of the first conduit (51). A pull rope (59) is fixedly connected to one end of the piston block (58), and the other end of the pull rope (59) is also fixedly connected to the top cover (2).

5. The pitch control cabinet structure with partitioning function according to claim 4, characterized in that: The power mechanism (4) includes a sealed box (41), and multiple first conduits (51) and pull ropes (59) are arranged inside the sealed box (41). One end of the sealed box (41) is provided with an installation groove (42), and a cooling fan (43) is fixedly installed on one side of the installation groove (42).

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