Wiring layout structure of triangular transformer and frequency converter

Abstract

The utility model discloses a wiring layout structure of a triangular transformer and a frequency converter, which relate to the field of frequency converters and comprise a chassis, a transformer cabinet, a transformer assembly, a three-phase input cable and a three-phase output cable. And the transformer assembly and the transformer cabinet are fixed on the chassis. The transformer assembly is located in the transformer cabinet and comprises a triangular transformer and a baffle, the triangular transformer is in a triangular prism shape, and an input conversion terminal assembly and an output conversion terminal assembly are installed on the top of the triangular transformer. And cable passing holes are formed in the chassis, the top plate and the baffle and in the included angle area between the side surface of the triangular transformer and the inner wall of the transformer cabinet. The electrical layout is optimized by adopting the triangular transformer, the structure is compact, and the space is saved; the redundant space is utilized to plan cable wiring, the manufacturing cost of the wiring cabinet is saved, the wiring is beautiful, the cables are prevented from being disordered, and the internal space utilization rate and the convenience of later maintenance are improved.

Description

Technical Field

[0001] The utility model relates to the field of frequency converters, in particular to a wiring layout structure of a triangle transformer and a frequency converter. Background Art

[0002] At present, the transformer used in traditional high-voltage inverters is arranged in a straight line, and its volume directly affects the volume of the high-voltage inverter. At the same time, high-voltage inverters all contain separate wiring cabinets. When wiring, cables can only be connected to the upper end of the transformer in the transformer cabinet through the wiring cabinet. Ultimately, the high-voltage inverter is large in size, has high manufacturing costs, complex and unsightly cable routing, low space utilization, and inconvenient on-site assembly and subsequent maintenance. Utility Model Content

[0003] To solve the above problems, the utility model proposes a wiring layout structure of a triangular transformer, which optimizes the electrical layout by using a triangular transformer with a triangular prism shape. The structure is compact and space-saving, and the size of the high-voltage inverter is reduced. The redundant space is used to plan the cable routing method, which effectively improves the internal space utilization rate and saves the manufacturing cost of the wiring cabinet. At the same time, the routing is beautiful and avoids cable clutter, which improves the convenience of later maintenance.

[0004] To achieve the above-mentioned purpose, in the first aspect, the utility model provides a wiring layout structure of a triangular transformer, including: a chassis, a transformer cabinet, a transformer assembly, a three-phase input cable, and a three-phase output cable. Specifically, the transformer assembly is located in the transformer cabinet, and the transformer cabinet and the transformer assembly are both fixed on the chassis. The transformer cabinet includes a top plate and a frame, and the top plate is connected to the frame and installed on the top of the transformer cabinet. The transformer assembly includes a triangular transformer, which has a triangular prism shape, a secondary tap is provided on the front side, and an input transfer terminal assembly and an output transfer terminal assembly are installed in a "V" shape on the top, and the "V" opening faces the front of the triangular transformer.

[0005] When implementing the input of the three-phase input cable and the output of the three-phase output cable, cable holes are opened on the chassis and the top plate of the transformer. At the same time, wire sleeves are inserted into the cable holes to protect the cables from mechanical damage and enhance insulation safety. The wiring method for setting the three-phase cable input and output is as follows: the three-phase input cable passes through the cable hole on the chassis or top plate, and then connects to the input transfer terminal assembly to complete the input installation of the three-phase cable. The three-phase output cable is led out from the output transfer terminal assembly, passed through the cable hole on the chassis or top plate, and led out of the transformer cabinet, thus completing the output installation of the three-phase cable. Cable holes are set in both the chassis and the top plate to adapt to different installation scenarios. Users can flexibly choose the cable routing direction according to the on-site working conditions.

[0006] When designing cable holes, the chassis cable holes are located within the angle formed by the bottom side of the triangular transformer and the lower inner wall of the transformer cabinet. The top plate cable holes are located within the angle formed by the top side of the triangular transformer and the upper inner wall of the transformer cabinet. These cable holes can be conventional round holes or square holes.

[0007] When setting up the wiring layout, wire clamps are installed inside the transformer cabinet to secure the three-phase input cables or three-phase output cables, ensuring uniform and reliable cable retention. These clamps are symmetrically located on the left and right inner sides of the frame, corresponding to the wiring paths of the input and output transfer terminal assemblies.

[0008] The transformer assembly is further provided with a windshield that runs across the interior of the transformer cabinet, and the triangular transformer passes through the windshield. A cable hole is provided on the windshield, and its position is located in the angle formed by the side of the triangular transformer and the inner wall of the transformer cabinet.

[0009] The input and output transfer terminal assemblies each include an insulator and a copper adapter. The copper adapter connects the three-phase input and three-phase output cables. One end of the insulator connects to the copper adapter, while the other end is fixed to the top of the triangular transformer.

[0010] On the other hand, the present invention also provides a frequency converter that adopts the wiring layout structure of the above-mentioned triangular transformer, and the triangular transformer is installed in such a way that the plane of the secondary tap outlet side is parallel to the front of the transformer cabinet.

[0011] Compared with the existing technology, the present invention has the following beneficial effects: a triangular transformer with a triangular prism shape is used to optimize the electrical layout. Compared with the traditional transformer, the structure is compact and space-saving, and the size of the high-voltage inverter is reduced; the redundant space is used to plan the cable routing method, which effectively improves the internal space utilization rate and saves the manufacturing cost of the wiring cabinet. At the same time, the routing is beautiful and avoids cable clutter, which improves the convenience of later maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall wiring layout structure of a triangular transformer proposed in the present invention;

[0013] Figure 2 This is a schematic diagram of the internal structure of a triangular transformer wiring layout structure proposed by the present invention;

[0014] Figure 3 This is a schematic diagram of the transfer terminal assembly proposed in the present invention.

[0015] Reference numerals:

[0016] 1: Chassis; 2: Transformer cabinet; 3: Transformer assembly; 4: Three-phase input cable; 5: Three-phase output cable; 201: Frame; 202: Wire binding clamp; 203: Top plate; 301: Triangular transformer; 302: Input transfer terminal assembly; 303: Output transfer terminal assembly; 304: Windshield; 401: Insulator; 402: Transfer copper fittings. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0018] like Figures 1 and 2 As shown, the present invention proposes a wiring layout structure for a triangular transformer, comprising: a chassis 1, a transformer cabinet 2, a transformer assembly 3, three-phase input cables 4, and three-phase output cables 5. The transformer assembly 3 is located within the transformer cabinet 2, and both the transformer cabinet 2 and the transformer assembly 3 are fixed to the chassis 1. The transformer cabinet 2 includes a frame 201, a top plate 203, and several wire binding clips 202. The top plate 203 is connected to the frame 201 and mounted on the top of the transformer cabinet 2.

[0019] In practice, transformer assembly 3 includes a triangular transformer 301. Triangular transformer 301 is shaped like a triangular prism, with a secondary tap located on the front. Compared to traditional transformers, a triangular transformer optimizes electrical layout, resulting in a compact, space-saving design. The top of triangular transformer 301 is equipped with an input adapter terminal assembly 302 and an output adapter terminal assembly 303 arranged in a "V" shape, with the "V" opening facing the front of the transformer 301.

[0020] like Figure 1 As shown, cable holes are provided on both the chassis 1 and the top plate 203 for the input or output of three-phase cables. At the same time, a wire sheath is inserted into the cable hole to prevent the cable from being mechanically damaged and enhance the insulation safety of the cable. The cable hole can be set as a commonly used round hole or square hole, and the present invention does not impose any specific restrictions. During specific implementation, the cable hole of the chassis 1 is located in the angle area formed by the bottom side of the triangular transformer 301 and the lower inner wall of the transformer cabinet 2. The cable hole of the top plate 203 is located in the angle area formed by the top side of the triangular transformer 301 and the upper inner wall of the transformer cabinet 2. The scheme of setting cable holes in the angle area rationally utilizes redundant space for centralized routing and improves space utilization.

[0021] In practice, cable ties 202 are symmetrically positioned on the left and right inner sides of the frame 201 to secure the three-phase cables, ensuring uniform and reliable cable retention. The mounting positions of the cable ties 202 align with the wiring paths of the input adapter terminal assembly 302 and the output adapter terminal assembly 303. The three-phase cables are secured by the cable ties 202, eliminating cable clutter, creating an aesthetically pleasing routing, and ensuring standardized wiring and enhanced insulation safety.

[0022] In a specific implementation, the transformer assembly 3 also includes a windshield 304 that extends across the interior of the transformer cabinet 2, and the triangular transformer 301 extends through the windshield 304. Cable holes are provided on the windshield 304 at the angle formed by the side of the triangular transformer 301 and the inner wall of the transformer cabinet 2. These cable holes are used to secure cables between the chassis 1 and the input adapter terminal assembly 302 or the output adapter terminal assembly 303.

[0023] like Figure 3 As shown, both the input transfer terminal assembly 302 and the output transfer terminal assembly 303 include an insulator 401 and a copper transfer piece 402. The copper transfer piece 402 is connected to the cable. One end of the insulator 401 is connected to the copper transfer piece 402, and the other end is fixed to the top of the delta transformer 301, ensuring electrical isolation while simplifying the structure.

[0024] like Figure 1 As shown, the routing layout of the three-phase cable input or output from chassis 1 is as follows:

[0025] The three-phase input cable 4 passes through the cable hole in the chassis 1 and into the transformer cabinet 2. It is then secured by the cable clamp 202 and passed through the cable hole in the windshield 304 before being connected and secured to the copper adapter 402 of the input adapter terminal assembly 302, completing the three-phase cable input process. The three-phase output cable 5 is then led out of the copper adapter 402 of the output adapter terminal assembly 303, downwardly passed through the cable hole in the windshield 304, and then secured by the cable clamp 202 before being led out of the cable hole in the chassis 1 and out of the transformer cabinet 2, completing the three-phase cable output process.

[0026] like Figure 2 As shown, the wiring layout of the three-phase cable input or output from the top plate 203 is as follows:

[0027] The three-phase input cable 4 passes through the cable hole in the top plate 203 and into the transformer cabinet 2, where it is directly connected and fixed to the copper adapter 402 of the input adapter terminal assembly 302, completing the three-phase cable input process. The three-phase output cable 5 is then led out of the transformer cabinet 2 through the cable hole in the top plate 203, completing the three-phase cable output process.

[0028] Cable holes are set at two positions of the chassis 1 and the top plate 203 to adapt to different installation scenarios. Users can flexibly choose the three-phase cable routing direction according to on-site working conditions.

[0029] The present invention further provides a frequency converter, which adopts the wiring layout structure of the above-mentioned triangular transformer. The triangular transformer 301 is installed in such a way that the plane of the secondary tap outlet side is parallel to the front face of the transformer cabinet 2 .

[0030] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Those skilled in the art may make various equivalent changes and improvements based on the above embodiments. Any equivalent changes or modifications made within the scope of the claims shall be included in the scope of protection of the present invention.

Claims

1. A wiring layout structure for a triangular transformer, comprising a chassis (1), a transformer cabinet (2), a transformer assembly (3), a three-phase input cable (4), and a three-phase output cable (5); characterized in that: The transformer assembly (3) is located in the transformer cabinet (2), and the transformer cabinet (2) and the transformer assembly (3) are both fixed on the chassis (1); The transformer assembly (3) comprises a triangular transformer (301) having a triangular prism shape; an input transfer terminal assembly (302) and an output transfer terminal assembly (303) are mounted on the top of the triangular transformer (301) in a "V"-shaped arrangement, with the opening of the "V" facing the front of the triangular transformer (301); Cable holes are provided on the chassis (1) and the top plate (203) of the transformer cabinet (2); The three-phase input cable (4) passes through the cable hole of the chassis (1) or the top plate (203) and is connected to the input transfer terminal assembly (302); The three-phase output cable (5) is led out from the output transfer terminal assembly (303) and passed through the cable through hole of the chassis (1) or the top plate (203).

2. The wiring layout structure of a triangular transformer according to claim 1, characterized in that: The transformer cabinet (2) comprises a frame (201), and wire binding clamps (202) are symmetrically provided on the left and right inner sides of the frame (201) for restraining and fixing the three-phase input cable (4) or the three-phase output cable (5).

3. The wiring layout structure of a triangular transformer according to claim 1, characterized in that: The top plate (203) is located on the top of the transformer cabinet (2).

4. The wiring layout structure of a triangular transformer according to claim 1, characterized in that: The cable through-hole of the chassis (1) is located in the angle area formed by the bottom side of the triangular transformer (301) and the lower inner wall of the transformer cabinet (2); the cable through-hole of the top plate (203) is located in the angle area formed by the top side of the triangular transformer (301) and the upper inner wall of the transformer cabinet (2).

5. The wiring layout structure of a triangular transformer according to claim 1, characterized in that: The input transfer terminal assembly (302) and the output transfer terminal assembly (303) both comprise an insulator (401) and a transfer copper piece (402); one end of the insulator (401) is fixed to the top of the triangle transformer (301), and the other end is connected to the transfer copper piece (402).

6. The wiring layout structure of a triangular transformer according to claim 1, characterized in that: The transformer assembly (3) further comprises a windshield (304), the windshield (304) traversing the interior of the transformer cabinet (2), and the triangular transformer (301) passing through the windshield (304); the windshield (304) is provided with a cable through hole in the angle region formed by the side of the triangular transformer (301) and the inner wall of the transformer cabinet (2).

7. The wiring layout structure of a triangular transformer according to claim 2, characterized in that: The installation position of the wire binding clamp (202) corresponds to the wiring path of the input transfer terminal assembly (302) and the output transfer terminal assembly (303).

8. The wiring layout structure of a triangular transformer according to claim 1, characterized in that: The front side of the triangle transformer (301) is provided with a secondary tap.

9. The wiring layout structure of a triangular transformer according to claim 4, characterized in that: The cable passing holes are all provided with wire protection sleeves.

10. A frequency converter, characterized in that: A wiring layout structure of a triangular transformer according to any one of claims 1 to 9 is adopted, wherein the triangular transformer (301) is installed in such a manner that the plane of the secondary tap outlet side is parallel to the front face of the transformer cabinet (2).

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