CN210779583U

CN210779583U - High-voltage frequency converter

Info

Publication number: CN210779583U
Application number: CN201921901918.8U
Authority: CN
Inventors: 王江云; 陈昶; 黄林波; 干永革
Original assignee: Cisdi Electric Technology Co ltd
Current assignee: Cisdi Electric Technology Co ltd
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2020-06-16
Anticipated expiration: 2029-11-06

Abstract

The utility model relates to a high-voltage inverter belongs to the electron device field. Including integral type cabinet body, power unit, high performance cooling system phase-shift transformer, fan, control part constitute, its characterized in that: the cabinet body adopts an integrated frame cabinet body, and single-side maintenance is realized; the power unit chamber, the transformer chamber and the control chamber are divided by adopting a partition plate; the front door panel is provided with a vent hole, and air flows through the transformer through the power unit radiator to form a high-efficiency radiating system; when the frequency converter has no bypass cabinet or an independent incoming cabinet, the incoming and outgoing lines in the cabinet can be realized; the cabinet body is provided with a hoisting structural member to prevent hoisting deformation. The utility model has the advantages of compact structure, it is small, low cost, installation convenient operation, the radiating effect is good, guarantees converter steady operation effectively.

Description

High-voltage frequency converter

Technical Field

The utility model belongs to the electronic device field relates to a high-voltage inverter.

Background

At present, most high-voltage frequency converters mainly comprise three parts, namely a dry-type phase-shifting transformer cabinet, a power cabinet and a control cabinet. A dry-type phase-shifting transformer with a filtering elimination function is placed in the transformer cabinet to supply power to a power unit in the power cabinet; the power cabinet consists of a plurality of power units and forms a main loop of the high-voltage frequency converter; the control cabinet is a command center for high-voltage frequency conversion work and consists of a master control system and a human-computer interface. And a cooling fan is required to be arranged in each of the transformer cabinet and the power cabinet.

The dry-type phase-shifting transformer cabinet, the power cabinet and the control cabinet are independent cabinet bodies, the requirement on field installation space is high, the cabinet bodies need to be independently transported and packaged, and the cabinet bodies are combined after arriving at the field. The cabinet body has large size and higher cost of structural parts and auxiliary materials. The transformer and the power unit are heating sources of the frequency converter, the two cabinet bodies are required to be equipped with cooling fans independently, and the utilization rate of the fans is low. The high cost directly restricts the market competitiveness of the product.

SUMMERY OF THE UTILITY MODEL

In view of this, an object of the present invention is to provide a high voltage inverter.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a high-voltage frequency converter comprises a cabinet body;

the cabinet body comprises a front door plate, side sealing plates, a cabinet frame and a rear sealing plate;

the cabinet body is divided into a power unit chamber, a control chamber and a transformer chamber by an air duct plate and an air duct sealing plate.

Optionally, the front door plate is provided with a certain number of ventilation holes, and the cabinet frame is welded by using sectional materials.

Optionally, a fan is arranged at the top of the cabinet body; the power unit inlet and outlet wires adopt a cable waterproof clamping joint through the air duct plate and the air duct sealing plate, and the cable waterproof clamping joint is used for guaranteeing the air duct tightness.

Optionally, the left side, the right side and the top of the transformer chamber are provided with transformer inlet ports for ensuring the universality under the condition of bypass or no bypass;

and the transformer inlet and the cable on the right side of the transformer are connected with the power unit through an air duct sealing plate.

Optionally, the cabinet frame is additionally provided with a detachable hoisting structure, so that deformation of construction hoisting is prevented.

The beneficial effects of the utility model reside in that: the utility model has the advantages of high performance, low cost, small volume, large power density and easy transportation and installation.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.

Drawings

For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the cabinet body structure of the present invention;

fig. 3 is an internal schematic view of the present invention at another angle.

Reference numerals: 1 power unit room, 13 wind channel boards, 14 wind channel closing plates, 2 control rooms, 3 transformer rooms, 4 cabinet bodies, 41 hoisting structural members, 42 front door boards, 43 side closing plates, 44 cabinet frames and 45 rear closing plates.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

Referring to fig. 1 to 3, a high voltage inverter is shown, in which a cabinet 4 is an integrated frame cabinet and is maintained on a single side; the power unit is divided into a power unit chamber 1, a control chamber 2 and a transformer chamber 3 by adopting a partition plate; the front door panel is provided with a vent hole, and air flows through the transformer through the power unit radiator to form a high-efficiency radiating system; when the frequency converter has no bypass cabinet or an independent incoming cabinet, the incoming and outgoing lines in the cabinet can be realized; the cabinet body is provided with a hoisting structural member 41 for preventing hoisting deformation. The frequency converter has the advantages of high space utilization rate, reasonable arrangement of components, small volume, high power density, greatly reduced cost and reduced occupied area on site.

The cabinet body 4 is composed of a front door panel 42, side sealing plates 43, a cabinet frame 44 and a rear sealing plate 45. The front door panel 42 is provided with a certain number of vent holes to ensure sufficient air inlet area. Integral type cabinet frame 44 adopts the section bar welding, sets up to back shrouding 45 behind the cabinet, convenient maintenance. The air duct plate 13 and the air duct closing plate 14 divide the space in the cabinet body into three areas, namely a power unit chamber 1, a control chamber 2 and a transformer chamber 3, and the fan is arranged on the top of the cabinet.

The power unit inlet and outlet wires adopt a cable waterproof clamping joint through an air duct plate 13 and an air duct closing plate 14, and the air duct tightness is guaranteed. The transformer adopts a high-performance heat dissipation system structure. The transformer outlet is arranged on the right side of the transformer, and the outlet cable is connected with the power unit through the air duct sealing plate 14. The cable route is reasonable and clear, and the cable consumption is reduced. The front door panel 42 is provided with sufficient air inlet holes, and air flows through the transformer through the power unit radiator to form a high-efficiency radiating system. The crossbeam and the stand of the power unit in the cabinet are both made of insulated glass channel steel, so that the installation strength can be met, and the insulation problem of each phase of power unit can be guaranteed. The left side and the right side in the cabinet can be accessed with wires, and the inlet and outlet wire switching row is installed, so that the universality of a system with or without a bypass cabinet or an inlet wire cabinet is ensured. In order to ensure the deformation of the assembly and the site construction hoisting, a detachable hoisting structure is additionally arranged on the cabinet body frame.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.

Claims

1. A high-voltage frequency converter is characterized in that: comprises a cabinet body (4);

the cabinet body (4) comprises a front door panel (42), side sealing plates (43), a cabinet frame (44) and a rear sealing plate (45);

the cabinet body (4) is divided into a power unit chamber (1), a control chamber (2) and a transformer chamber (3) through an air duct plate (13) and an air duct sealing plate (14).

2. The high-voltage frequency converter according to claim 1, wherein: the front door plate (42) is provided with a certain number of ventilation holes, and the cabinet frame (44) is welded by adopting sectional materials.

3. The high-voltage frequency converter according to claim 1, wherein: a fan is arranged at the top of the cabinet body (4); the power unit inlet and outlet wires adopt a cable waterproof clamping joint through an air duct plate (13) and an air duct closing plate (14) and are used for guaranteeing the air duct tightness.

4. The high-voltage frequency converter according to claim 1, wherein: the left side, the right side and the top of the transformer chamber (3) are provided with transformer wire inlets for ensuring the universality under the condition of bypass or no bypass;

and the transformer inlet and the cable on the right side of the transformer are connected with the power unit through an air duct sealing plate (14).

5. The high-voltage frequency converter according to claim 1, wherein: the cabinet frame (44) is additionally provided with a detachable hoisting structure (41) to prevent deformation of construction hoisting.