CN119482011A

CN119482011A - A quick connection mechanism and modular transformer cabinet

Info

Publication number: CN119482011A
Application number: CN202411634469.0A
Authority: CN
Inventors: 聂远杰; 田飞; 葛峻杉; 车武文; 张锌阳; 沈仁杰; 秦德润; 李明虎; 杜清; 王玫珺; 付奕珲; 王青清; 黄菁菁; 周择婷
Original assignee: Guizhou Power Grid Co Ltd
Current assignee: Guizhou Power Grid Co Ltd
Priority date: 2024-11-15
Filing date: 2024-11-15
Publication date: 2025-02-18

Abstract

The invention relates to the technical field of transformers, in particular to a quick connection mechanism and a modularized transformer cabinet. The device comprises a high-voltage connector, a low-voltage connector and a safety module connected with the low-voltage connector, wherein the high-voltage connector and the low-voltage connector are connected in series with corresponding connecting wires. The protection shell and the butt joint module are fixedly arranged on the outer wall of the protection shell. The invention can be flexibly assembled to meet the requirements of different scenes, the modules are assembled through the quick connectors, the assembly is simple, the cost is low, the structural design meets the requirements of related safety regulations, the flexible movable arrangement can be realized, the assembly safety meets the related regulations through the tests of partial discharge, pressure resistance and the like, and the assembly is safe and reliable.

Description

Quick connecting mechanism and modularized transformer cabinet

Technical Field

The invention relates to the technical field of transformers, in particular to a quick connection mechanism and a modularized transformer cabinet.

Background

At present, a 10KV box-type transformer is used as important power supply equipment in a distribution network system and is widely applied to urban and rural areas. However, the existing 10KV box-type transformer has a plurality of common problems. The existing 10KV box-type transformer is usually fixedly installed in an assembling network circuit and cannot be moved easily. This design results in a frustrated design when faced with temporary power requirements. For example, in the scenes of construction sites, temporary activity sites, emergency rescue sites and the like, temporary power supply is required, and a fixedly installed 10KV box-type transformer cannot be quickly moved to a designated position, so that the temporary power demand is difficult to meet.

The installation and the disassembly processes of the 10KV box-type transformer are complex, professional operation is needed, and a large amount of manpower and material resources are consumed. Especially in the electric field scene for temporary use, frequent installation and dismantlement can lead to the cost to increase by a wide margin, has restricted its range of application, in order to solve the interim power supply demand, mainly relies on mobile power supply equipment such as power generation car at present. However, the power supply of the power generation vehicle is limited, the operation cost is high, and the power consumption requirements of scenes such as large-scale activities, construction sites and the like are difficult to meet at any time.

Therefore, a quick connection mechanism and a modularized transformer cabinet which are convenient for modularized disassembly and assembly and can be flexibly arranged are needed to meet the existing environment requirements.

Disclosure of Invention

This section is intended to summarize some aspects of embodiments of the application and to briefly introduce some preferred embodiments, which may be simplified or omitted in this section, as well as the description abstract and the title of the application, to avoid obscuring the objects of this section, description abstract and the title of the application, which is not intended to limit the scope of this application.

In view of the above-mentioned prior art, the box transformer of 10KV can't remove easily, can't remove to appointed position fast, is difficult to satisfy interim power consumption demand, and the dismantlement process is complicated, needs professional operation, consumes a large amount of manpower and materials.

Therefore, the technical problem to be solved by the invention is to design the quick connecting mechanism and the modularized transformer cabinet which are convenient to assemble and disassemble in a modularized manner and can be flexibly arranged in a movable manner so as to meet the requirements of the existing environment.

In order to solve the technical problems, the invention provides the following technical scheme:

A high pressure junction;

The safety module is connected with the low-voltage connector;

The high-voltage connector and the low-voltage connector are connected in series to correspond to the connecting wire.

As an improvement of the invention, the high-voltage connector is provided with an external connection end and an internal connection end, and the internal connection end is connected with the voltage transformation assembly.

As an improvement of the invention, the top of the transformation assembly is fixedly provided with a high-pressure pile head and a low-pressure pile head, and the high-pressure pile head is connected with the inner connecting end.

As an improvement of the invention, the other end of the high-voltage bus is connected with the high-voltage pile head, and the low-voltage bus is connected with the low-voltage pile head, the low-voltage connector and the safety module.

A modular transformer cabinet, comprising the quick connect mechanism of claim 5, and

The device comprises a protection shell and a butt joint module fixedly arranged on the outer wall of the protection shell.

As an improvement of the invention, the docking module comprises a low-voltage docking unit and a high-voltage docking unit.

As an improvement of the invention, the low-pressure connector is fixedly connected inside the low-pressure butt joint unit, the low-pressure connector is connected with the debugging end face, and the debugging end face is positioned on the outer wall of the protective shell.

As an improvement of the invention, the bottom of the protective shell is fixedly provided with a movable end.

The invention has the beneficial effects of flexible assembly, meeting the requirements of different scenes, simple assembly, low cost, meeting the requirements of related safety regulations by structural design, meeting the related regulations by the tests of partial discharge, pressure resistance and the like, and being safe and reliable.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

fig. 1 is a schematic plan view of an operation scene in the present invention.

Fig. 2 is a plan side view of the present invention.

Fig. 3 is a plan view of another view in the present invention.

Fig. 4 is an overview of the circuit connection in the present invention.

Detailed Description

In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

Example 1

Referring to fig. 1, the present embodiment provides a quick connect mechanism.

The high-voltage connector 100 is manufactured by adopting a precision casting process, the head and the tail of the high-voltage connector 100 are respectively provided with an external connection end 101 and an internal connection end 102, the external connection end 101 is provided with a lightning protection device conforming to the IEC 61000-4-5 standard, and the reliability under severe environments is enhanced. The inner terminal 102 adopts a spring contact finger structure, ensures reliable connection with the transformer in the cabinet, and has low contact resistance and high stability.

The low voltage connector 200 is of plug-in design, the overall layout is located opposite the high voltage connector 100, and is equipped with a circuit breaker MCB compliant with IEC 60947-7-1 standard as a safety module 201. The safety module 201 can rapidly cut off the circuit when overload, short circuit and electric leakage occur, and protect personnel and equipment.

The connecting wire 300 adopts a copper core crosslinked polyethylene insulated power cable which accords with GB/T3048.4-2014 standard, the cable has excellent electrical performance and mechanical strength, can stably work in a temperature range of minus 40 ℃ to 125 ℃, the connecting wire 300 connects the high-voltage connector 100 and the low-voltage connector 200 with a transformer in a cabinet, and when a worker actually operates, the corresponding high-voltage equipment and low-voltage equipment can be connected outside the cabinet by utilizing the high-voltage connector 100 and the low-voltage connector 200.

Example 2

Referring to fig. 1 to 3, this embodiment is based on the previous embodiment, and is different from the previous embodiment in that:

The transformer assembly 400 is an oil immersed transformer, and a high-voltage pile head 401 and a low-voltage pile head 402 are fixedly arranged at the top of the transformer assembly 400, and the high-voltage pile head 401 and the low-voltage pile head 402 can be made of copper, aluminum or stainless steel and have better oxidation resistance. The high-voltage pile head 401 is connected with the inner connecting end 102 through the high-voltage bus 301, the connecting wire 300 comprises the high-voltage bus 301 and the low-voltage bus 302, the layout of the high-voltage bus 301 and the layout of the low-voltage bus 302 are all in a three-dimensional design, the cable length is reduced through optimizing paths, and the line impedance is reduced. In addition, the relative positions of the bus bars are subjected to electromagnetic compatibility (EMC) analysis, so that mutual interference is not generated.

Example 3

Referring to fig. 1 to 4, this embodiment is based on the previous embodiment, and is different from the previous embodiment in that:

The protective shell 500 is made of an aluminum alloy material meeting the GB/T2694.2-2018 standard, and has light weight, high strength and good heat dissipation performance. The inside of the shell adopts a flame-retardant and high-temperature-resistant insulating material, so that the safe operation of the equipment in a complex environment is ensured. The docking module 501 includes a low voltage docking unit 502 and a high voltage docking unit 503, both of which are designed with a quick connector, and conform to the IEC 61984 standard. The docking unit 502 and the high-pressure docking unit 503 are fixedly installed at the outer wall of the protective case 500,

The external connection end 101 is fixedly arranged outside the high-voltage butt joint unit 503, the internal connection end 102 is fixedly arranged inside the high-voltage butt joint unit 503 and used for connecting the inside and the outside of the protective shell 500, the low-voltage joint 200 is fixedly connected inside the low-voltage butt joint unit 502, the debugging end face 502a is also arranged inside the low-voltage butt joint unit 502 and is communicated with the external environment, and a worker can realize quick butt joint with an external low-voltage system through the debugging end face 502a

The mobile terminal 500a is equipped with casters conforming to the ISO 228-1 standard, ensuring the stability and flexibility of the transformer cabinet during movement. The castor is made of hard rubber, and has good wear resistance and shock absorption performance.

It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, 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 the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.

Claims

1. A quick connection mechanism, characterized in that: it includes:

High pressure connector (100);

A low-pressure connector (200), and a safety module (201) connected to the low-pressure connector (200);

The high-pressure connector (100) and the low-pressure connector (200) are provided with corresponding connecting wires (300).

2. The quick connection mechanism according to claim 1 is characterized in that: the high-voltage connector (100) is provided with an external connection end (101) and an internal connection end (102), and the internal connection end (102) is connected to the transformer assembly (400).

3. The quick connection mechanism according to claim 2 is characterized in that a high-pressure pile head (401) and a low-pressure pile head (402) are fixedly arranged on the top of the transformer assembly (400), and the high-pressure pile head (401) is connected to the inner connection end (102).

4. The quick connection mechanism according to claim 2 is characterized in that: the connecting line (300) includes a high-voltage busbar (301) and a low-voltage busbar (302), and the high-voltage busbar (301) is connected to the inner connection end (102).

5. The quick connection mechanism according to claim 4 is characterized in that the other end of the high-voltage busbar (301) is connected to the high-voltage pile head (401), and the low-voltage busbar (302) is connected to the low-voltage pile head (402), the low-voltage connector (200) and the safety module (201).

6. A modular transformer cabinet, characterized in that it comprises the quick connection mechanism according to claim 5, and

A protective shell (500), and a docking module (501) fixedly arranged on the outer wall of the protective shell (500).

7. The modular transformer cabinet according to claim 6, characterized in that the docking module (501) comprises a low-voltage docking unit (502) and a high-voltage docking unit (503).

8. The modular transformer cabinet according to claim 7, characterized in that: the external connection end (101) is fixedly arranged on the outside of the high-voltage docking unit (503), and the internal connection end (102) is fixedly arranged on the inside of the high-voltage docking unit (503).

9. The modular transformer cabinet according to claim 8 is characterized in that: the low-voltage docking unit (502) is internally fixedly connected to the low-voltage connector (200), the low-voltage connector (200) is connected to the debugging end face (502a), and the debugging end face (502a) is located on the outer wall of the protective shell (500).

10. The modular transformer cabinet according to claim 7, characterized in that a movable end (500a) is fixedly arranged at the bottom of the protective shell (500).