Mounting and fixing frame for braking resistor

Abstract

A brake resistor mounting and fixing frame comprises a mounting base, a protective cover and heat dissipation holes, the bottom of the mounting base is connected with the interior of a hub of a wind driven generator through bolts, the top of the mounting base is connected with a brake resistor through bolts, the protective cover is connected with the top of the mounting base through bolts, and the heat dissipation holes are formed in the protective cover. The mounting base comprises a fixing seat and a bottom support. Compared with the prior art, the fixing support is additionally arranged, so that the brake resistor can be directly installed inside the hub of the wind driven generator without being limited by the installation position and space of an original variable-pitch cabinet, and the brake resistor with a larger size can be installed according to actual requirements. And meanwhile, heat emitted by the resistor is far away from the variable pitch cabinet, so that the stability of devices in the cabinet is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generator systems, in particular to a braking resistor installation fixing frame. Background Art

[0002] In wind power generation systems, the traditional method of installing brake resistors is to install them on the outer wall of the pitch cabinet. Since the outer side of the pitch cabinet is limited in size, the size of the resistor is limited by the length and width of the cabinet. When the capacity of the pitch system increases, the capacity of the brake resistor also increases accordingly, and the size will also increase. However, since larger brake resistors cannot be installed, this creates great difficulties in design.

[0003] To solve the above problems, we made a series of improvements. Utility Model Content

[0004] The purpose of the utility model is to provide a brake resistor installation bracket to overcome the above-mentioned shortcomings and deficiencies in the prior art.

[0005] A brake resistor mounting bracket comprises: a mounting base, a protective cover and a heat dissipation hole, wherein the bottom of the mounting base is connected to the inside of a wind turbine hub by bolts, the top of the mounting base is connected to the brake resistor by bolts, the protective cover is connected to the top of the mounting base by bolts, and the heat dissipation hole is arranged on the protective cover;

[0006] Wherein, the mounting base includes: a fixing base and a bottom bracket, the two sides of the surface of the fixing base are connected to the two sides of the bottom end of the protective cover by bolts, the surface of the fixing base is connected to the braking resistor by bolts, the bottom brackets are symmetrically arranged on both sides of the bottom end of the fixing base, the supporting surface of the bottom bracket is an inverted trapezoid, and the bottom bracket is connected to the inside of the wind turbine hub by bolts.

[0007] Beneficial effects of the utility model:

[0008] Compared with the traditional technology, the utility model can directly install the brake resistor inside the hub of the wind turbine generator by adding a fixed bracket, without being limited by the original installation space of the variable pitch cabinet, and can install a larger brake resistor according to actual needs. At the same time, the heat emitted by the resistor is kept away from the variable pitch cabinet, improving the stability of the components in the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the utility model.

[0010] Figure 2 This is an installation status diagram of the utility model.

[0011] Reference numerals:

[0012] The mounting base 100 , the fixing base 110 , the bottom bracket 120 and the supporting surface 121 are mounted.

[0013] The protective cover 200 and the heat dissipation holes 300 .

[0014] A wind turbine hub 400 and a brake resistor 500 . DETAILED DESCRIPTION

[0015] The following is a further description of the present invention in conjunction with specific embodiments. It should be understood that the following embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0016] Example 1

[0017] Figure 1 It is a structural schematic diagram of the utility model. Figure 2 This is an installation status diagram of the utility model.

[0018] like Figure 1-2 As shown, a brake resistor mounting bracket includes: a mounting base 100, a protective cover 200 and a heat dissipation hole 300, the bottom of the mounting base 100 is connected to the inside of a wind turbine hub 400 by bolts, the top of the mounting base 100 is connected to the brake resistor 300 by bolts, the protective cover 200 is connected to the top of the mounting base 100 by bolts, and the heat dissipation hole 300 is provided on the protective cover 200.

[0019] Among them, the mounting base 100 includes: a fixing base 110 and a bottom bracket 120, the two sides of the surface of the fixing base 110 are connected to the two sides of the bottom end of the protective cover 200 by bolts, the surface of the fixing base 110 is connected to the braking resistor 500 by bolts, and the bottom brackets 120 are symmetrically arranged on both sides of the bottom end of the fixing base 110, the supporting surface 121 of the bottom bracket 120 is an inverted trapezoid, and the bottom bracket 120 is connected to the inside of the wind turbine hub by bolts.

[0020] like Figure 2As shown, the utility model adjusts the traditional installation position from the outside of the traditional variable pitch cabinet to the inside of the wind turbine hub. It is not necessary to be limited by the space limitation of the original variable pitch cabinet installation position, and a larger brake resistor can be installed according to actual needs. At the same time, the heat emitted by the resistor is kept away from the variable pitch cabinet, thereby improving the stability of the components in the cabinet. Since the wind turbine hub 400 is a spherical structure, the utility model designs the mounting base 100 and the protective cover 200 according to the inner wall curved surface, and then installs them above the inner wall of the sphere, and then protects the brake resistor 500 through the protective cover 200 to prevent it from falling off or being damaged by other things. The protective cover 200 is provided with heat dissipation holes 300 to help the brake resistor 500 dissipate heat. The mounting base 100 is used as a supporting body and is firmly fixed to the brake resistor 500 by bolts. The supporting surface 121 of the bottom bracket 120 is an inverted trapezoidal design. First, the inverted trapezoidal design can provide a larger contact area than a cylindrical structure, thereby enhancing the connection strength between the bracket and the circular inner wall. Secondly, the inverted trapezoidal design can more effectively disperse the stress caused by gravity or other external forces, reduce stress concentration, and improve the stability of the overall structure. Thirdly, the inverted trapezoidal design allows a certain amount of adjustment space for the bracket legs during installation, allowing it to adapt to the slight irregularities of the inner wall of the spherical structure. Finally, compared to a monolithic rectangular structure, the inverted trapezoidal design reduces the use of materials while maintaining strength, achieving cost-effectiveness.

[0021] The specific implementation modes of the present invention are described above, but the present invention is not limited thereto. The present invention can also have various changes without departing from the purpose of the present invention.

Claims

1. A brake resistor mounting bracket, characterized in that: include: A mounting base (100), a protective cover (200) and a heat dissipation hole (300), wherein the bottom of the mounting base (100) is connected to the inside of a wind turbine hub (400) by bolts, the top of the mounting base (100) is connected to a brake resistor (500) by bolts, the protective cover (200) is connected to the top of the mounting base (100) by bolts, and the heat dissipation hole (300) is provided on the protective cover (200); The mounting base (100) comprises: a fixing base (110) and a bottom bracket (120); two sides of the surface of the fixing base (110) are connected to two sides of the bottom end of the protective cover (200) by bolts; the surface of the fixing base (110) is connected to the braking resistor (500) by bolts; two sides of the bottom end of the fixing base (110) are symmetrically provided with bottom brackets (120); a supporting surface (121) of the bottom bracket (120) is in an inverted trapezoidal shape; and the bottom bracket (120) is connected to the inside of the wind turbine hub (400) by bolts.

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