Wind power control cabinet

Abstract

A wind power control cabinet disclosed by the present application comprises a main body frame and an auxiliary frame installed in the main body frame, the main body frame is also provided with a side plate, a top plate, a rear plate and an installation plate, and the auxiliary frame is provided with an expansion partition plate used for dividing the internal space of the main body frame into a strong current equipment accommodating part and a weak current equipment accommodating part. Grounding elastic piece device triggering ends are installed at a plurality of first preset positions on the main body frame, grounding elastic piece device receiving ends are installed at second preset positions, corresponding to the first preset positions, on the side plate, the top plate and the rear plate, and the side plate, the top plate and the rear plate are installed on the main body frame. And the grounding elastic sheet device receiving end is in close contact with the grounding elastic sheet device triggering end. According to the wind power control cabinet, interference of strong and weak electricity in the cabinet can be avoided, the installation space is expanded, spreading after the strong electricity cavity is on fire is avoided, and the grounding continuity and the grounding effect of the whole main control cabinet can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation equipment, and more specifically, to a wind power control cabinet. Background Art

[0002] Wind power generation is a clean energy source that can convert wind energy into electrical energy. Its core equipment is the wind turbine generator set, which is mainly composed of a tower, a nacelle and an impeller. The nacelle contains various control components, such as generators, gearboxes and main control cabinets. The main control cabinet issues control instructions by receiving and processing signals from various sensors to ensure the normal operation of the wind turbine generator set. Existing main control cabinets usually adopt an integrated design, that is, all control devices are installed in a chamber. Although this design is simple, it has the following problems: First, since all control devices are concentrated in one chamber, the electromagnetic interference between the high-voltage cabinet and the low-voltage cabinet cannot be effectively isolated, which may affect the normal operation of the control device; secondly, if a fire occurs on the incoming line side, the fire may quickly spread to the entire main control cabinet, causing serious impact on the control device, and may even cause the unit to be unable to shut down, thereby causing a greater safety accident; the main control cabinet adopts a single frame. If the machine The group increases, and the use of the same chamber by strong and weak current components requires two cabinets to be combined to form a common-cavity main control cabinet, which will greatly increase the cost; thirdly, the grounding conductivity effect is poor. When the side panels and frames of the existing main control cabinet are connected with a ground wire, one end is fixed to the frame with a self-tapping screw, and the other end is fixed to the energy storage welding nail on the side panel. When fixed with a self-tapping screw, the area of ​​the cabinet frame is relatively small, so the grounding effect is poor. When fixing the ground wire at the side panel end, if the torque is not set properly, the energy storage welding nail will also be damaged, which will affect the grounding effect and thus the electromagnetic compatibility of the entire cabinet will deteriorate. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a wind power control cabinet, which can avoid interference between strong and weak electricity in the cabinet, expand the installation space, avoid the spread of fire in the high-voltage cavity, and ensure the grounding continuity and grounding effect of the entire main control cabinet.

[0004] The utility model provides a wind power control cabinet, including a main frame and an auxiliary frame installed inside the main frame, the main frame is also installed with side panels, a top panel, a rear panel and a mounting plate, the auxiliary frame is installed with an expansion partition for dividing the internal space of the main frame into a strong current equipment accommodating portion and a weak current equipment accommodating portion, a plurality of first preset positions on the main frame are installed with grounding spring clip device triggering ends, the side panels, the top panel and the rear panel second preset positions corresponding to the first preset positions are installed with grounding spring clip device receiving ends, after the side panels, the top panel and the rear panel are installed on the main frame, the grounding spring clip device receiving ends are in close contact with the grounding spring clip device triggering ends.

[0005] Preferably, in the above-mentioned wind power control cabinet, two top corners of the mounting plate are rigidly connected and fixed to the main frame, and rubber shock absorbers are arranged between two bottom corners and the main frame.

[0006] Preferably, in the above-mentioned wind power control cabinet, the auxiliary frame and the main frame are fixed together by welding.

[0007] Preferably, in the above-mentioned wind power control cabinet, the expansion partition is made of sheet metal with a U-shaped cross section folded in the middle position, and flanges are folded on four sides, and is fixed to the auxiliary frame by self-tapping screws.

[0008] Preferably, in the above-mentioned wind power control cabinet, a reinforcing corner component is installed at a right-angle position on the front of the main frame, wherein the reinforcing corner component is formed by bending a sheet metal part with a thickness of 2 mm to 3 mm into a triangle.

[0009] Preferably, in the above-mentioned wind power control cabinet, the back of the main frame has a back mounting frame installed along the width direction of the main frame.

[0010] Preferably, in the above-mentioned wind power control cabinet, the back mounting frame is rectangular as a whole, one short side of which is connected to the main frame, and the other short side is connected to the auxiliary frame, and an L-shaped sheet metal component is fixed to the back mounting frame along the diagonal direction.

[0011] Preferably, in the above-mentioned wind power control cabinet, the main frame is a frame formed by welding nine-fold profiles.

[0012] Preferably, in the above-mentioned wind power control cabinet, the auxiliary frame is a C-shaped frame formed by bending a sheet metal with a thickness of 1 mm to 2 mm six times.

[0013] Preferably, in the above-mentioned wind power control cabinet, the trigger end of the grounding spring clip device includes a first high-elasticity metal sheet and a first connecting member, the first connecting member is welded to the main frame, the first high-elasticity metal sheet is riveted to the first connecting member, the first high-elasticity metal sheet is arc-shaped as a whole, and an opening is provided on the first high-elasticity metal sheet, the receiving end of the grounding spring clip device includes a second high-elasticity metal sheet and a second connecting member, the second connecting member is welded to the side plate, the top plate and the rear plate, the second high-elasticity metal sheet is riveted to the second connecting member, and the thickness of the second high-elasticity metal sheet is greater than the thickness of the first high-elasticity metal sheet.

[0014] It can be seen from the above technical scheme that the above-mentioned wind power control cabinet provided by the utility model includes a main frame and an auxiliary frame installed inside the main frame, and the main frame is also installed with side panels, a top panel, a back panel and a mounting plate, and the auxiliary frame is installed with an expansion partition for dividing the internal space of the main frame into a strong current equipment accommodating part and a weak current equipment accommodating part, thereby avoiding interference between strong and weak electricity in the cabinet, expanding the installation space, and avoiding the spread of fire in the strong current cavity, and since the triggering ends of grounding spring clip devices are installed at multiple first preset positions on the main frame, the receiving ends of grounding spring clip devices are installed at the second preset positions corresponding to the first preset positions on the side panels, the top panel and the back panel, after the side panels, the top panel and the back panel are installed on the main frame, the receiving ends of the grounding spring clip devices are in close contact with the triggering ends of the grounding spring clip devices, thereby ensuring the grounding continuity and grounding effect of the entire main control cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0016] Figure 1 An overall schematic diagram of an embodiment of a wind power control cabinet provided by the utility model;

[0017] Figure 2 This is the rear main view of the wind power control cabinet;

[0018] Figure 3 It is an enlarged front view of the trigger end of the grounding spring device;

[0019] Figure 4 A three-dimensional diagram of the trigger end of the grounding spring device;

[0020] Figure 5It is an enlarged schematic diagram of the rubber shock absorber;

[0021] Figure 6 This is a schematic diagram of a reinforced corner component installed on a wind power control cabinet;

[0022] Figure 7 It is a three-dimensional schematic diagram of the receiving end of the grounding spring device. DETAILED DESCRIPTION

[0023] The core of the utility model is to provide a wind power control cabinet, which can avoid interference between strong and weak electricity in the cabinet, expand the installation space, avoid the spread of fire in the strong electricity cavity, and ensure the grounding continuity and grounding effect of the entire main control cabinet.

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides a wind power control cabinet. Figure 1 As shown, Figure 1 The utility model provides an overall schematic diagram of an embodiment of a wind power control cabinet, the wind power control cabinet may include a main frame 1 and an auxiliary frame 2 installed inside the main frame 1, the main frame 1 may be a frame welded by nine-fold profiles, the width may be 1500mm, the height may be 1800mm, the depth may be 600mm, the auxiliary frame 2 may be a C-shaped frame formed by bending a sheet metal with a thickness of 1mm to 2mm six times, the thickness of the sheet metal may be further preferably 1.5mm, the two sides of the auxiliary frame are along the height direction, and the other two sides are along the depth direction, these dimensions can be selected according to actual needs, the main frame 1 is also equipped with side panels, a top panel, a rear panel and a mounting plate ( Figure 1 (not shown), the auxiliary frame 2 is equipped with an expansion partition 3 for dividing the internal space of the main frame 1 into a strong current equipment accommodating portion and a weak current equipment accommodating portion, wherein the Figure 1The left space in the figure is used as the accommodating part for strong current equipment, and the right space is used as the accommodating part for weak current equipment. These can be adjusted according to actual needs. It can be seen that in this way, strong current equipment and weak current equipment can be placed in different spaces respectively, which can effectively reduce the electromagnetic interference of strong current equipment on the control devices in weak current equipment, increase the electrical reliability and safety of the product, and at the same time, when a fire occurs on the incoming line side, it can effectively prevent the fire from spreading rapidly to the entire main control cabinet and causing serious impact on the control devices, and even cause the unit to be unable to shut down, causing greater safety accidents. Moreover, the components in the main control cabinet can be installed on both sides of the expansion partition 3, which can increase the installation space and ensure that the main control cabinet of the same volume can be compatible with the model of a larger unit, which can effectively solve the problem that the existing main control cabinet design cannot meet the needs of large units. For reference Figure 2 , Figure 2 The rear view of the wind power control cabinet is shown in FIG. 1 . The triggering end 4 of the grounding spring device is installed at multiple first preset positions on the main frame 1. For further information, please refer to Figure 3 and Figure 4 , Figure 3 This is an enlarged front view of the trigger end of the grounding spring device. Figure 4 This is a three-dimensional diagram of the trigger end of the grounding spring device. The second preset position on the side panel, top panel and rear panel corresponding to the first preset position is equipped with a grounding spring device receiving end. After the side panel, top panel and rear panel are installed on the main frame, the grounding spring device receiving end is in close contact with the trigger end of the grounding spring device, thereby realizing the grounding connection between various panels and the frame, saving grounding wires, reducing the steps of installing grounding wires, increasing grounding continuity, and thereby increasing the electromagnetic compatibility of the entire main control cabinet.

[0026] It can be seen from the above technical scheme that in the embodiment of the above-mentioned wind power control cabinet provided by the utility model, since it includes a main frame and an auxiliary frame installed inside the main frame, the main frame is also installed with side panels, a top panel, a back panel and a mounting plate, and the auxiliary frame is installed with an expansion partition for dividing the internal space of the main frame into a strong current equipment accommodating portion and a weak current equipment accommodating portion. Therefore, it is possible to avoid interference between strong and weak electricity in the cabinet, expand the installation space, and avoid the spread of fire in the strong current cavity. Moreover, since the trigger ends of the grounding spring clip devices are installed at multiple first preset positions on the main frame, and the receiving ends of the grounding spring clip devices are installed at the second preset positions corresponding to the first preset positions on the side panels, top panels and back panels, after the side panels, top panels and back panels are installed on the main frame, the receiving ends of the grounding spring clip devices are in close contact with the triggering ends of the grounding spring clip devices. Therefore, the grounding continuity and grounding effect of the entire main control cabinet can be guaranteed.

[0027] In addition, the existing wind power control cabinet has poor anti-vibration effect, wherein almost all control components are installed on the mounting plate inside the main control cabinet, and the four corners of the mounting plate are hard-connected to the cabinet body by bolts, and will bear the vibration brought by the unit together with the cabinet body. As the components age, there is a risk that the components will fall off due to vibration, affecting the normal operation of the unit. Moreover, the towers are getting higher and higher now, so the requirements for anti-vibration are also getting higher and higher. To solve this problem, in a specific embodiment of the above-mentioned wind power control cabinet, continue to refer to Figure 2 The two top corners of the mounting plate are rigidly connected and fixed to the main frame, and rubber shock absorbers 5 can be arranged between the two bottom corners and the main frame 1. For details, please refer to Figure 5 , Figure 5 The rubber shock absorber 5 is added under the mounting plate to form a buffer zone, which can absorb the vibration transmitted from the unit to the mounting plate, thereby better preventing components from falling off due to vibration and increasing the service life of the components.

[0028] In another specific embodiment of the above wind power control cabinet, the auxiliary frame 2 and the main frame 1 can be fixed together by welding, so that the firmness of the two can be ensured. Specifically, the auxiliary frame 2 can be provided with openings consistent with the modular holes of the main frame 1 to increase the overall strength, stability and protection level of the main control cabinet. Of course, other fixing methods can also be selected according to actual needs, which is not limited here.

[0029] In another specific embodiment of the above-mentioned wind power control cabinet, the above-mentioned expansion partition 3 can be made of sheet metal with a U-shaped cross-section folded in the middle position, and flanges are folded on the four sides, and fixed to the auxiliary frame 2 by self-tapping screws. The sheet metal can preferably be 2 mm thick to ensure that the expansion partition has sufficiently high rigidity. Of course, other methods can be selected to make such expansion partitions according to actual needs, which is not limited here.

[0030] In a preferred embodiment of the above wind power control cabinet, refer to Figure 6 , Figure 6 This is a schematic diagram of the reinforced corner components installed on the wind power control cabinet. A reinforced corner component 6 is installed at the front right angle position of the main frame 1, wherein a sheet metal with a thickness of 2mm to 3mm can be bent into a triangle to form such a reinforced corner component 6. It should be noted that a sheet metal with a thickness of 2mm can be formed by bending 4 times, and 8 reinforced corner components 6 can be fixed at the right angle joints of the front of the main frame by self-tapping. In this case, when the cabinet vibrates violently, the frame can be ensured not to be deformed, thereby ensuring that the cabinet door can be opened normally to operate the equipment and closed, and protecting various internal devices. It can be seen that by adding such a reinforced corner component 6, the overall strength and rigidity of the cabinet can be further enhanced to further prevent the unit from deforming during operation.

[0031] In another preferred embodiment of the above wind power control cabinet, continue to refer to Figure 2 The back of the main frame 1 has a back mounting frame 7 installed along the width direction of the main frame 1. Specifically, two back mounting frames 7 can be installed with 14 self-tapping screws, one side connected to the main frame 1 and the other side connected to the auxiliary frame 2, so that the strength of the rear of the main control cabinet can be strengthened, and the connection between the rear of the main control cabinet and the external bracket can be flexibly adjusted. The size of this back mounting frame 7 can be freely processed, and it is fixed between the main frame 1 and the auxiliary frame 2 by self-tapping screws. The upper and lower positions of the installation can be adjusted as needed, which is not limited here.

[0032] In another preferred embodiment of the above-mentioned wind power control cabinet, the back mounting frame 7 can be preferably rectangular as a whole, and can be preferably welded with 3mm L-shaped sheet metal, with mounting holes on both sides corresponding to the modular holes of the main frame 1, one short side is connected to the main frame, and the other short side is connected to the auxiliary frame. The back mounting frame 7 is fixed with an L-shaped sheet metal component along the diagonal direction, so that the rectangle can be divided into two triangles. This design can enhance the strength of the rear of the main control cabinet and can flexibly adjust the connection between the rear of the main control cabinet and the external bracket.

[0033] Based on the various embodiments of the above wind power control cabinet, continue to refer to Figure 3 and Figure 4 The trigger end 4 of the grounding spring device may include a first high elastic metal sheet 41 and a first connecting member 42, wherein the first connecting member 42 is welded to the main frame 1, and the first high elastic metal sheet 41 may be preferably riveted to the first connecting member 42. The first high elastic metal sheet 41 may be preferably arc-shaped as a whole, and an opening may be preferably provided on the first high elastic metal sheet 41, and the thickness may be 1 mm, and the specific material may be a copper sheet, and the opening may be located at two-thirds, so that the copper sheet may be well deformed when squeezed, and may also achieve better contact with the grounding receiving end of each mounting plate, refer to Figure 7 , Figure 7 Schematic diagram of the receiving end of the grounding spring device, the receiving end 8 of the grounding spring device may include a second high elastic metal sheet 81 and a second connecting member 82, the second connecting member 82 is welded to the side plate, the top plate and the back plate, the second high elastic metal sheet 81 is riveted to the second connecting member 82, it should be noted that the second high elastic metal sheet 81 is a layer located on the surface of the second connecting member 82, such as Figure 7 The upper surface of the middle and the part extending downward to both sides for a distance are the second high elastic metal sheet 81. Figure 7Rivets 83 are also shown. Riveting can ensure higher firmness. Moreover, the thickness of the second high-elastic metal sheet 81 is preferably greater than the thickness of the first high-elastic metal sheet 41. This is because after the first high-elastic metal sheet 41 is triggered by the second high-elastic metal sheet 81, the first high-elastic metal sheet 41 will change from an arc to a flat shape. If it is too thick, it will not be easily deformed. The second high-elastic metal sheet 81 needs to be frequently rubbed, so it needs to be thicker. Specifically, the second high-elastic metal sheet can preferably be a copper sheet with a thickness of 3 mm. After the various plates are installed, the receiving end of the grounding spring clip device is pressed onto the copper sheet at the triggering end of the grounding spring clip device. The copper sheet is deformed and has a large area of ​​contact with the receiving end of the grounding spring clip device, thereby achieving an effective grounding effect. It can be seen that this omits the use of the grounding copper wire, saves the grounding step, and improves manufacturing efficiency.

[0034] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wind power control cabinet, characterized in that: It includes a main frame and an auxiliary frame installed inside the main frame, the main frame is also installed with side panels, a top panel, a back panel and a mounting plate, the auxiliary frame is installed with an expansion partition for dividing the internal space of the main frame into a strong current equipment accommodating portion and a weak current equipment accommodating portion, multiple first preset positions on the main frame are installed with grounding spring clip device triggering ends, and second preset positions corresponding to the first preset positions on the side panels, the top panel and the back panel are installed with grounding spring clip device receiving ends. After the side panels, the top panel and the back panel are installed on the main frame, the grounding spring clip device receiving ends are in close contact with the grounding spring clip device triggering ends.

2. The wind power control cabinet according to claim 1, characterized in that: The two top corners of the mounting plate are rigidly connected and fixed to the main frame, and rubber shock absorbers are arranged between the two bottom corners and the main frame.

3. The wind power control cabinet according to claim 1, characterized in that: The auxiliary frame and the main frame are fixed together by welding.

4. The wind power control cabinet according to claim 1, characterized in that: The expansion partition is made of sheet metal and folded into a U-shaped cross section in the middle position, and flanges are folded on four sides, and fixed to the auxiliary frame by self-tapping screws.

5. The wind power control cabinet according to claim 1, characterized in that: A reinforcing corner component is installed at a right-angle position on the front of the main frame, wherein the reinforcing corner component is formed by bending a sheet metal part with a thickness of 2 mm to 3 mm into a triangle.

6. The wind power control cabinet according to claim 1, characterized in that: The back of the main frame has a back mounting frame installed along the width direction of the main frame.

7. The wind power control cabinet according to claim 6, characterized in that: The back mounting frame is rectangular in shape as a whole, one short side of which is connected to the main frame, and the other short side is connected to the auxiliary frame. An L-shaped sheet metal component is fixed to the back mounting frame along the diagonal direction.

8. The wind power control cabinet according to claim 1, characterized in that: The main frame is a frame formed by welding nine-fold profiles.

9. The wind power control cabinet according to claim 1, characterized in that: The auxiliary frame is a C-shaped frame formed by bending a sheet metal part with a thickness of 1 mm to 2 mm six times.

10. The wind power control cabinet according to any one of claims 1 to 9, characterized in that: The trigger end of the grounding spring device includes a first high-elastic metal sheet and a first connecting member, the first connecting member is welded to the main frame, the first high-elastic metal sheet is riveted to the first connecting member, the first high-elastic metal sheet is in an arc shape as a whole, and an opening is provided on the first high-elastic metal sheet, the receiving end of the grounding spring device includes a second high-elastic metal sheet and a second connecting member, the second connecting member is welded to the side plate, the top plate and the back plate, the second high-elastic metal sheet is riveted to the second connecting member, and the thickness of the second high-elastic metal sheet is greater than the thickness of the first high-elastic metal sheet.

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