Novel integrated high-voltage frequency converter structure

Abstract

According to the novel integrated high-voltage frequency converter structure, the cabinet body is arranged at the upper part of the base, and the side panels are detachable and convenient to maintain; two lifting lugs on each side serve as lifting bearing points; the cable hoop is positioned at the lower part of the high-voltage incoming and outgoing line terminal, so that incoming and outgoing line cables can be fixed conveniently; the power supply switching module and the control module realize modular integration; the power unit module is arranged on a secondary insulating plate of the transformer through a fastening bolt; incoming cables of the power unit modules are directly connected with the secondary side of the transformer, and the power unit modules of all phases are connected in series; the transformer is arranged below the fan, and the top is connected with the cabinet body frame through a soft silica gel plate to realize sealing of a wrapping cylinder structure; cooling air is filtered by the ventilation window, passes through the power unit module radiator and then reaches the transformer, and the heat is discharged out of the cabinet under the action of the fan; the high-voltage incoming and outgoing line terminal is laid on the high-voltage cable; through the integrated and modular design, the device is simple and compact in structure, small in size, high in production efficiency and convenient to install and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of power equipment, and particularly relates to a novel integrated high-voltage frequency converter structure. Background Art

[0002] High-voltage frequency converters have become one of the main technical means for speed control of high-voltage motors due to their high efficiency and good performance. With the diversification of user needs, the requirements for product integration and systematization are also getting higher and higher. However, most of the currently used high-voltage frequency converter structures are complex in structure, have a large number of components, are complex in operation and maintenance, and have a high price cost. Summary of the Invention

[0003] In order to solve the above problems, the present invention provides a novel integrated high-voltage frequency converter structure, and its technical solution is as follows:

[0004] It includes a cabinet frame structure and a fan. The cabinet frame structure is installed on the upper part of the base; the fan is installed on the upper rear side of the cabinet frame structure; on the left front side of the front of the cabinet frame structure, there is a power cabinet door, on the right front side is a control cabinet door, a side panel detachably installed on the cabinet frame structure, and on the back is a rear side panel, forming a frame-shaped structure of the cabinet frame;

[0005] On the control cabinet door, there are a human-machine control screen, operation button indicators and a live-line indicator. The human-machine control screen is located in the upper middle part of the control cabinet door, the live-line indicator is located in the upper part, and the operation button indicators are located between the human-machine control screen and the live-line indicator;

[0006] Open the control cabinet door, and there is a component mounting plate longitudinally inside. The power supply switching module and the control module are respectively installed on the component mounting plate;

[0007] The power unit modules are arranged in upper, middle and lower three phases, and each phase of power unit modules is connected in series through unit series rows; the power unit modules are installed on the left front side and fixed to the insulating plate on the secondary side of the transformer through fastening bolts; the incoming line cables of the power unit modules are connected to the transformer and the secondary side;

[0008] The current sampling Hall is installed on the left front side of the cabinet frame structure, between the phases;

[0009] The fan is located directly above the transformer; the transformer adopts a cylindrical structure transformer, which is located below the fan and is connected to the cabinet frame structure at the top. The transformer is fixed at the rear left side of the base; the high-voltage incoming and outgoing line terminals are located at the upper rear side of the transformer, and the primary wiring support plate is located above the high-voltage incoming and outgoing line terminals, facilitating the laying of high-voltage cables; the insulating plate on the secondary side of the transformer is located in front of the high-voltage incoming and outgoing line terminals, and the secondary output connection terminals of the transformer are installed on the insulating plate on the secondary side of the transformer, arranged in three layers, upper, middle and lower, and arranged left and right;

[0010] The voltage sampling is installed on the right rear side of the cabinet frame structure.

[0011] Further, the ventilation window is installed on the power cabinet door; the lifting lugs are welded on the front and rear sides of the base, two on each side; the cable clamp is welded on the upper rear side of the base, below the high-voltage inlet and outlet terminals.

[0012] Further, the cooling air is filtered through the ventilation window on the power cabinet door, first passes through the radiator of the power unit module, flows to the transformer, and discharges the heat generated during the operation of the equipment out of the cabinet under the action of the fan.

[0013] Further, the transformer is installed at the rear side, the power unit is installed at the front left side, and the control component mounting plate is located at the right front side.

[0014] The beneficial effects of the present utility model are as follows: The present utility model is a novel integrated high-voltage frequency converter structure. The cabinet frame structure is installed on the upper part of the base, and the side panels are detachable for easy maintenance; there are two lifting lugs on each side as the lifting load-bearing points; the cable clamp is located below the high-voltage inlet and outlet terminals for facilitating the fixation of the inlet and outlet cables; the power supply switching module and the control module are installed on the component mounting plate to realize the modular integration of the control module; the current sampling Hall is installed on the front left side of the cabinet frame structure, between the phases; the power unit module is installed on the front left side and fixed to the insulating plate on the secondary side of the transformer through fastening bolts; the incoming line cable of the power unit module is directly connected to the secondary side of the transformer, and each phase of the power unit module is connected in series through the unit series row; the ventilation window meets the ventilation and protection requirements; the transformer is located below the fan, and the top is connected to the cabinet frame structure through a soft silica gel plate, etc. to realize the sealing of the barrel structure; the cooling air is filtered through the ventilation window, flows through the radiator of the power unit module to the transformer, and discharges the heat out of the cabinet under the action of the fan; the high-voltage inlet and outlet terminals facilitate the laying of high-voltage cables; the present utility model has a simple and compact structure through integrated and modular design, is simple and compact, has a small volume, has a higher production efficiency, and is convenient for installation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front view of the present invention;

[0016] Figure 2 is Figure 1 the rear view;

[0017] Figure 3 is Figure 1 the left view;

[0018] Figure 4 is Figure 1 the right view;

[0019] Figure 5 is Figure 3 the schematic diagram of the A-A structure;

[0020] Figure 6 isFigure 3 Schematic diagram of B-B structure;

[0021] Figure 7 For Figure 1 Schematic diagram of C-C structure;

[0022] Figure 8 For Figure 1 Schematic diagram of K-K structure;

[0023] Figure 9 Schematic diagram of the movement of the heat dissipation circulating air;

[0024] As shown in the figure:

[0025] Cabinet: Base 1.1, cabinet frame structure 1.2, bottom lifting lugs 1.3, cable clamps 1.4;

[0026] Control part: Control element mounting plate 2.1, power supply switching module 2.2, control module 2.3;

[0027] Fan 3;

[0028] Power unit part: Current sampling Hall 4.1, unit series row 4.2, power unit module 4.3;

[0029] Side panel 5;

[0030] Control cabinet door: Control cabinet door 6.1, human-machine control screen 6.2, operation button indicator light 6.3, live display 6.4;

[0031] Power cabinet door: Ventilation window 7.1, power cabinet door 7.2;

[0032] Transformer part: Transformer 8.1, high-voltage incoming and outgoing line terminals 8.2, primary wiring support plate 8.3, insulating plate for the secondary of the transformer 8.4;

[0033] Voltage sampling 9, rear side cover plate 10. Specific implementation mode

[0034] As shown in the figure, the present utility model is a novel integrated high-voltage frequency converter structure, including a cabinet, a control part, a fan, and a power unit part.

[0035] The cabinet includes: a base 1.1, a cabinet frame structure 1.2, bottom lifting lugs 1.3 and cable clamps 1.4. The cabinet frame structure is installed on the upper part of the base. The bottom lifting lugs are welded to the front and rear sides of the base, two on each side, serving as the lifting load-bearing points. The cable clamps are welded to the upper rear side of the base, below the high-voltage incoming and outgoing line terminals, facilitating the fixation of the incoming and outgoing line cables.

[0036] The control section includes: a control component mounting plate 2.1, a power switching module 2.2, and a control module 2.3. The control component mounting plate is located on the right front side. The power switching module and the control module are mounted on the control component mounting plate to achieve modular integration of the control module.

[0037] The fan 3 is located directly above the transformer and is installed at the upper rear part of the cabinet frame structure.

[0038] The power unit section includes a current sampling Hall 4.1, a unit series connection row 4.2, and a power unit module 4.3. The current sampling Hall is installed on the front left side of the cabinet frame structure, between phases; the power unit module is installed on the left front side and is fixed to the insulating plate on the secondary side of the transformer by fastening bolts; the incoming line cable of the power unit module is directly connected to the secondary side of the transformer; the power unit modules are arranged in three phases, upper and lower, and each phase of the power unit modules is connected in series through the unit series connection row 4.2.

[0039] The side panels 5 are installed on both sides of the cabinet frame structure and are detachable for easy maintenance.

[0040] The control cabinet door includes a control cabinet door 6.1, a human-machine control screen 6.2, operation button indicators 6.3, and a live-line indicator 6.4. The control cabinet door is installed on the front right side of the cabinet frame structure; the human-machine control screen 6.2 is located in the upper middle part of the control cabinet door 6.1, the live-line indicator 6.4 is located in the upper part, and the operation button indicators 6.3 are located between the human-machine control screen 6.2 and the live-line indicator 6.4.

[0041] The power cabinet door includes a ventilation window 7.1 and a power cabinet door 7.2. The ventilation window is installed on the power cabinet door to meet the ventilation and protection requirements.

[0042] The transformer section includes a transformer 8.1, high-voltage incoming and outgoing line terminals 8.2, a primary wiring support plate 8.3, and an insulating plate on the secondary side of the transformer 8.4. The transformer is fixed at the left rear side of the base. The power unit is installed on the front left side, and the control component mounting plate is located on the right front side. The transformer adopts a cylindrical structure transformer, which is located below the fan, and the top is connected to the cabinet frame structure through a soft silicone plate, etc. to achieve the sealing of the cylindrical structure. The cooling air passes through the ventilation window 7.1 on the power cabinet door 7.2 for filtration, first passes through the radiator of the power unit module 4.3, and flows to the transformer 8.1. Under the action of the fan 3, the heat generated by the equipment operation is discharged out of the cabinet. The high-voltage incoming and outgoing line terminals 8.2 are located at the upper rear part of the transformer 8.1, and the primary wiring support plate 8.3 is located above the high-voltage incoming and outgoing line terminals 8.2 to facilitate the laying of high-voltage cables; the insulating plate on the secondary side of the transformer 8.4 is located in front of the high-voltage incoming and outgoing line terminals 8.2, and the secondary output connection terminals of the transformer are installed on the insulating plate on the secondary side of the transformer 8.4, arranged in three layers, upper, middle, and lower, and arranged left and right.

[0043] The voltage sampling 9 is installed on the right rear side of the cabinet frame structure.

[0044] The rear side sealing plate 10 is installed at the rear side of the cabinet frame structure to seal the cabinet and meet the requirements of forced air cooling.

[0045] The utility model relates to a novel integrated high-voltage frequency converter structure. The cabinet is installed on the upper part of the base, and the side panels are detachable for easy maintenance; there are two lifting lugs on each side as the lifting load-bearing points; the cable clamp is located below the high-voltage incoming and outgoing line terminals for facilitating the fixation of the incoming and outgoing line cables; the power supply switching module and the control module are integrally modularized; the power unit module is installed on the insulating board of the secondary of the transformer through fastening bolts; the incoming line cable of the power unit module is directly connected to the secondary side of the transformer, and the power unit modules of each phase are connected in series; the transformer is below the fan, and the top is connected to the cabinet frame through a soft silica gel plate to achieve the sealing of the barrel structure; the cooling air is filtered through the ventilation window, passes through the radiator of the power unit module to the transformer, and the heat is discharged out of the cabinet under the action of the fan; the high-voltage incoming and outgoing line terminals are for the laying of high-voltage cables; through the integrated and modular design, the utility model has a simple and compact structure, a small volume, a high production efficiency, and is convenient for installation and maintenance.

[0046] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A novel integrated high-voltage frequency converter structure, characterized in that, It includes a cabinet frame structure (1.2) and a fan (3). The cabinet frame structure (1.2) is installed on the upper part of the base (1.1); the fan (3) is installed on the upper part of the rear side of the cabinet frame structure (1.2); and it is characterized in that: On the left side of the front of the cabinet frame structure (1.2), there is a power cabinet door (7.2), on the right side of the front is a control cabinet door (6.1), a side panel (5) detachably installed on the cabinet frame structure (1.2), and on the rear is a rear side panel (10), forming a frame-shaped structure of the cabinet frame; On the control cabinet door (6.1), there are a human-machine control screen (6.2), operation button indicators (6.3) and a live-line display (6.4). The human-machine control screen (6.2) is located in the upper middle part of the control cabinet door (6.1), the live-line display (6.4) is located in the upper part, and the operation button indicators (6.3) are located between the human-machine control screen (6.2) and the live-line display (6.4); Open the control cabinet door (6.1), and longitudinally inside there is a component mounting board (2.1), and a power supply switching module (2.2) and a control module (2.3) are respectively installed on the component mounting board (2.1); The power unit modules (4.3) are arranged in upper, middle and lower three phases, and each phase of power unit modules (4.3) is connected in series through a unit series row (4.2); the power unit modules (4.3) are installed on the left front side and are fixed to the insulating board (8.4) on the secondary side of the transformer through fastening bolts; the incoming line cables of the power unit modules (4.3) are connected to the secondary side of the transformer (8.1); The current sampling Hall (4.1) is installed on the left front side of the cabinet frame structure (1.2), between phases; The fan (3) is located directly above the transformer (8.1); the transformer (8.1) adopts a barrel-shaped structure transformer, is located below the fan (3), and is connected to the cabinet frame structure (1.2) at the top. The transformer (8.1) is fixed at the left rear side of the base (1.1); the high-voltage incoming and outgoing line terminals (8.2) are located at the upper part of the rear side of the transformer (8.1), and the primary wiring support plate (8.3) is located above the high-voltage incoming and outgoing line terminals (8.2) to facilitate the laying of high-voltage cables; the insulating board (8.4) on the secondary side of the transformer is located in front of the high-voltage incoming and outgoing line terminals (8.2), and the secondary output wiring terminals of the transformer are installed on the insulating board (8.4) on the secondary side of the transformer, arranged in three layers, upper, middle and lower, and arranged left and right; The voltage sampling (9) is installed on the right rear side of the cabinet frame structure (1.2).

2. A novel integrated high-voltage frequency converter structure according to claim 1, characterized in that, The ventilation window (7.1) is installed on the power cabinet door (7.2); The lifting lugs (1.3) are welded to the front and rear sides of the base (1.1), two on each side; The cable clamp (1.4) is welded to the upper rear side of the base (1.1), below the high-voltage incoming and outgoing line terminals (8.2).

3. A novel integrated high-voltage frequency converter structure according to claim 1, characterized in that, The cooling air passes through the ventilation window (7.1) on the power cabinet door (7.2) for filtration, first passes through the radiator of the power unit module (4.3), flows to the transformer (8.1), and under the action of the fan (3), discharges the heat generated by the equipment operation out of the cabinet.

4. A novel integrated high-voltage frequency converter structure according to claim 1, characterized in that, The transformer (8.1) is installed on the rear side, the power unit modules (4.3) are installed on the left front side, and the control component mounting board is located on the right front side.

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