A compact threading board for a wind power converter

Abstract

The utility model discloses a compact threading board for wind power converter, including setting bottom plate, first elastic threading pad, second elastic threading pad and apron in proper order, bottom plate, first elastic threading pad, second elastic threading pad and apron are connected to become a whole, the apron is set up with a plurality of first threading hole, the bottom plate is set up with second threading hole with first threading hole corresponding position, first elastic threading pad is set up with telescopic hole with first threading hole, second elastic threading pad is set up with cross cut with first threading hole corresponding position, the utility model discloses telescopic hole can be elastic telescopic, and cable can pass through the threading board with terminal together, need not first threading cable again, can improve the efficiency of wiring.

Description

Technical Field

[0001] This utility model relates to the field of wind power converters, specifically to a compact terminal block structure for converters. Background Technology

[0002] In wind power converters, the control cabinet is a core component. As the power rating of converters continues to increase, the size of the power cabinet is getting larger and larger. However, due to the space limitations of the generator tower, the overall size of the unit is also limited to a certain range, which leads to the control cabinet size becoming smaller and smaller. In the control cabinet, a large number of secondary control and communication cables need to pass through the converter to connect to the outside. Due to the size limitations of the control cabinet base plate, traditional cable glands are too large, and when multiple are installed in parallel, additional operating space needs to be reserved for rotation and fastening, which is increasingly difficult to meet the installation requirements of the control cabinet base plate.

[0003] Therefore, the wiring structure of the existing control cabinet base plate is optimized to meet the needs of increasingly smaller control cabinet base plate space. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the prior art by proposing a compact cable guide for wind power converters, which can solve the above problems.

[0005] To achieve the above objectives, this utility model proposes a compact cable guide plate for wind power converters, comprising a base plate, a first elastic cable guide pad, a second elastic cable guide pad, and a cover plate arranged sequentially. The base plate, the first elastic cable guide pad, the second elastic cable guide pad, and the cover plate are connected as a whole. The cover plate has a plurality of first cable guide holes, and the base plate has second cable guide holes at positions corresponding to the first cable guide holes. The first elastic cable guide pad has expansion holes at positions corresponding to the first cable guide holes, and the second elastic cable guide pad has cross slits at positions corresponding to the first cable guide holes.

[0006] Preferably, the diameter of the first threading hole is smaller than the diameter of the second threading hole, and the diameter of the telescopic hole is smaller than the diameter of the first threading hole.

[0007] Preferably, the maximum length of the cross-cut is less than the diameter of the first thread hole.

[0008] Preferably, the central axes of the first threading hole, the second threading hole, the expansion joint, and the cross slit are collinear.

[0009] Preferably, the base plate, the first elastic threading pad, the second elastic threading pad, and the cover plate are all provided with connection holes, and the connection holes are connected by fastener assemblies.

[0010] Preferably, the base plate has mounting holes at its four corners, and grounding screws are provided on the sides of the base plate, with protective caps installed on the grounding screws.

[0011] Preferably, both the first elastic threading pad and the second elastic threading pad are made of silicone rubber.

[0012] The beneficial effects of this utility model are:

[0013] 1. The telescopic hole of this utility model can be elastically extended and retracted, and the cable can pass through the terminal block together with the cable lug, without having to thread the cable through first and then press the cable lug, which can improve the wiring efficiency.

[0014] 2. The diameter of the telescopic hole is smaller than the diameter of the cable. After installation, the telescopic hole will contract and clamp the cable, which has a sealing effect and prevents dust from entering the cabinet through the cable hole. This can prevent the failure of the components inside the cabinet due to dust and improve the reliability of the components inside the cabinet.

[0015] 3. After the cable passes through the cross-cut, the cross-cut will lift up. This lifting will prevent the cable from contacting the edge of the first through hole on the cover plate, effectively preventing the sheet metal processing edge from cutting the cable insulation layer, thus avoiding the potential risk of insulation layer failure due to long-term cutting damage.

[0016] 4. Traditional cable glands are bulky, and space needs to be reserved for rotation and fastening when multiple glands are installed together; while this utility model has a compact structure and can set more wire holes in the same wiring space.

[0017] 5. In this utility model, a grounding screw is provided on the side of the base plate, which can be connected to the grounding point of the cabinet through a cable to eliminate potential difference, prevent maintenance personnel from being electrocuted when touching it, and improve safety.

[0018] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0019] Figure 1 This is an exploded view of the present invention;

[0020] Figure 2 This is a schematic diagram of the base plate of this utility model;

[0021] Figure 3 This is a schematic diagram of the first elastic threading pad of this utility model;

[0022] Figure 4 This is a schematic diagram of the second elastic threading pad of this utility model;

[0023] Figure 5 This is a schematic diagram of the cover plate installation of this utility model;

[0024] Figure 6This is an installation diagram of this utility model.

[0025] In the diagram: 1. Base plate; 2. First elastic threading pad; 3. Second elastic threading pad; 4. Cover plate; 11. Second threading hole; 12. Grounding screw; 21. Expansion hole; 31. Cross slit; 41. First threading hole; 5. Connection hole. Detailed Implementation

[0026] See Figures 1 to 6 A compact cable guide for wind power converters includes a base plate 1, a first elastic cable guide pad 2, a second elastic cable guide pad 3, and a cover plate 4 arranged sequentially. The base plate 1, the first elastic cable guide pad 2, the second elastic cable guide pad 3, and the cover plate 4 are connected as a whole. The cover plate 4 has a plurality of first cable guide holes 41. The base plate 1 has second cable guide holes 11 at positions corresponding to the first cable guide holes 41. The first elastic cable guide pad 2 has telescopic holes 21 at positions corresponding to the first cable guide holes 41. The second elastic cable guide pad 3 has cross-cut slits 31 at positions corresponding to the first cable guide holes 41.

[0027] The diameter of the first threading hole 41 is smaller than the diameter of the second threading hole 11, and the diameter of the telescopic hole 21 is smaller than the diameter of the first threading hole 41.

[0028] The maximum length of the cross-cut 31 is less than the diameter of the first thread hole 41.

[0029] The central axes of the first threading hole 41, the second threading hole 11, the expansion hole 21, and the cross slit 31 are collinear.

[0030] The cross-cut can also be designed into other forms such as the star-shaped cut.

[0031] The base plate 1, the first elastic threading pad 2, the second elastic threading pad 3, and the cover plate 4 are all provided with connection holes 5, and the connection holes 5 are connected by fastener components.

[0032] A rivet nut is fixed at the connection hole 5 of the base plate 1. During assembly, the screw passes through the first thread hole 41, the cross slit 31, the expansion hole 21 and the second thread hole 11 in sequence to connect with the rivet nut.

[0033] The base plate 1 has mounting holes at its four corners, and a grounding screw 12 is provided on the side of the base plate 1, with a protective cap installed on the grounding screw.

[0034] Both the first elastic threading pad 2 and the second elastic threading pad 3 are made of silicone rubber.

[0035] During installation, the present invention is fixed to the mounting holes of the base plate 1 using screws and mounting holes. The cables that need to be connected are passed from the bottom of the cabinet through the second through hole 11, the telescopic hole 21, the cross slit 31 and the first through hole 41 before entering the cabinet.

[0036] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A compact cable tray for wind power converters, characterized in that: The device includes a base plate (1), a first elastic threading pad (2), a second elastic threading pad (3), and a cover plate (4) arranged sequentially. The base plate (1), the first elastic threading pad (2), the second elastic threading pad (3), and the cover plate (4) are connected as a whole. The cover plate (4) has a plurality of first threading holes (41). The base plate (1) has a second threading hole (11) at a position corresponding to the first threading hole (41). The first elastic threading pad (2) has a telescopic hole (21) at a position corresponding to the first threading hole (41). The second elastic threading pad (3) has a cross slit (31) at a position corresponding to the first threading hole (41).

2. The compact cable tray for wind power converters as described in claim 1, characterized in that: The diameter of the first threading hole (41) is smaller than the diameter of the second threading hole (11), and the diameter of the telescopic hole (21) is smaller than the diameter of the first threading hole (41).

3. The compact cable tray for wind power converters as described in claim 1, characterized in that: The maximum length of the cross slit (31) is less than the diameter of the first thread hole (41).

4. The compact cable tray for wind power converters as described in claim 1, characterized in that: The central axes of the first threading hole (41), the second threading hole (11), the expansion hole (21), and the cross slit (31) are collinear.

5. The compact cable tray for wind power converters as described in claim 1, characterized in that: The base plate (1), the first elastic threading pad (2), the second elastic threading pad (3) and the cover plate (4) are all provided with connection holes (5), and the connection holes (5) are connected by fastener components.

6. The compact cable tray for wind power converters as described in claim 1, characterized in that: The base plate (1) has mounting holes at its four corners and a grounding screw (12) on its side. A protective cap is installed on the grounding screw (12).

7. The compact cable tray for wind power converters as described in claim 1, characterized in that: Both the first elastic threading pad (2) and the second elastic threading pad (3) are made of silicone rubber.

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