CN212627655U

CN212627655U - Energy storage converter plug-in type power module structure

Info

Publication number: CN212627655U
Application number: CN202021719525.8U
Authority: CN
Inventors: 赵伟; 谢宁; 赵兵; 谢志文; 蔡笋
Original assignee: Electric Power Research Institute of Guangdong Power Grid Co Ltd
Current assignee: Electric Power Research Institute of Guangdong Power Grid Co Ltd
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-02-26
Anticipated expiration: 2030-08-18

Abstract

The utility model discloses an energy storage converter grafting type power module structure, include: the insulating beam is fixedly connected with the side wall of the energy storage converter power cabinet at two ends, a directional guide rail and a power module in sliding connection with the directional guide rail are arranged on the insulating beam, and a plug contact is arranged on the power module; and the plug socket is electrically connected with the plug contact and is fixedly arranged on the fixed cross beam, and two ends of the fixed cross beam are fixedly connected with the side wall of the energy storage converter power cabinet. The power module realizes free insertion through the directional guide rail, the plug connector and the insertion base, and is convenient to detach. The directional guide rail realizes positioning and guiding, ensures the accuracy of the inserting and positioning of the power module, has interference fit between the inserting contact and the inserting seat, has small contact resistance and avoids the problems of virtual connection and overlarge heating of contact area.

Description

Energy storage converter plug-in type power module structure

Technical Field

The utility model relates to a flexible direct current transmission technical field, concretely relates to energy storage converter grafting type power module structure.

Background

In order to relieve the increasingly nervous energy crisis and reduce the emission of carbon dioxide, more and more wind power generation and photovoltaic power generation are connected to a power grid. The renewable energy sources have volatility, intermittence and unpredictability, seriously jeopardize the stability and reliability of a power grid when being accessed in a high proportion, and bring great challenges to the voltage and frequency control of the power grid. The energy storage system can smooth the fluctuation power generated by the new energy source on one hand, and can be used for improving the stationarity of wind power on the other hand. The energy storage converter is a device which is connected between a battery system and a power grid (or a load) and realizes bidirectional conversion of electric energy, can control the charging and discharging processes of a storage battery, performs alternating current-direct current conversion, can directly supply power to an alternating current load under the condition of no power grid, and is core equipment of the energy storage system.

Along with the development of power electronic technology, the energy storage converter develops towards the direction of integration and modularization, and the power module is used as a core component of the energy storage converter, so that the characteristics of high stability, high reliability and the like are met, and the practical application requirements of simple and light structure, convenience in installation and maintenance and the like are met. At present, a power unit and a high-frequency transformer of a power module are mostly independently installed, the integration level is not high, the high-frequency transformer is connected with an external circuit through a wire or a copper bar, the installation and the disassembly are difficult on the one hand, and the overhaul efficiency is extremely low. On the other hand, the contact surfaces are more, the contact resistance is large, and the problem of virtual connection or over-high local temperature rise is easy to occur when the energy storage converter runs at high power.

Disclosure of Invention

The utility model discloses a solve above-mentioned technical problem, proposed following technical scheme:

in a first aspect, an embodiment of the present invention provides an energy storage converter plug-in type power module structure, including: the insulating beam is fixedly connected with the side wall of the energy storage converter power cabinet at two ends, a directional guide rail and a power module in sliding connection with the directional guide rail are arranged on the insulating beam, and a plug contact is arranged on the power module; and the plug socket is electrically connected with the plug contact and is fixedly arranged on the fixed cross beam, and two ends of the fixed cross beam are fixedly connected with the side wall of the energy storage converter power cabinet.

By adopting the implementation mode, the power module can be freely inserted and connected through the directional guide rail, the plug connector and the plug socket, and is convenient to detach. The directional guide rail realizes positioning and guiding, ensures the accuracy of the inserting and positioning of the power module, has interference fit between the inserting contact and the inserting seat, has small contact resistance and avoids the problems of virtual connection and overlarge heating of contact area.

With reference to the first aspect, in a first possible implementation manner of the first aspect, a first insulating support is disposed between the plug contact and the housing of the power module. The first insulating support is used for fixedly mounting the plug contact on the power module shell, and ensures that the plug contact is fixed and reliable and is insulated from the power module shell.

With reference to the first aspect, in a second possible implementation manner of the first aspect, a second insulating support is disposed between the socket and the fixed beam. The second insulating support keeps electric insulation between the plug socket and the fixed cross beam.

With reference to the first aspect, in a third possible implementation manner of the first aspect, two plug contacts are provided, two insertion ports are also provided on the insertion socket corresponding to the two plug contacts, and the insertion ports are insulated from each other. The two inserting ports are insulated, so that the two inserting contacts after being inserted are kept electrically isolated.

With reference to the first aspect or any one of the first to third possible implementation manners of the first aspect, in a fourth possible implementation manner of the first aspect, a groove is formed in the insulating cross beam, and the orientation rail is fixedly disposed in the groove. The directional guide rail is arranged in the groove, so that the power module is prevented from generating transverse displacement when being plugged.

With reference to the first aspect, in a fifth possible implementation manner of the first aspect, the insulating beams are provided with a plurality of insulating beams, and the plurality of insulating beams are arranged in parallel in the converter power cabinet.

With reference to the first aspect, in a sixth possible implementation manner of the first aspect, a positioning pin is disposed on one side of the power module, which is in sliding contact with the directional guide rail, a positioning hole is disposed at one end of the directional guide rail, which is close to the fixed cross beam, and the positioning pin is movably connected to the positioning hole. The positioning pin and the positioning hole further ensure accurate splicing and positioning of the power module.

With reference to the third possible implementation manner of the first aspect, in a seventh possible implementation manner of the first aspect, a power unit and a high-frequency transformer are disposed in the power module, and the high-frequency transformer is electrically connected to the power unit and the plug contact, respectively.

With reference to the seventh possible implementation manner of the first aspect, in an eighth possible implementation manner of the first aspect, the plug socket is electrically connected to a copper bar, and the copper bar is electrically connected to the integral circuit.

Drawings

Fig. 1 is a side view of a plug-in power module structure of an energy storage converter according to an embodiment of the present invention;

fig. 2 is a top view of a plug-in power module structure of an energy storage converter according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of installation in an energy storage converter power cabinet;

fig. 4 is an enlarged view of the positioning hole and the positioning pin provided in the embodiment of the present invention;

the symbols in fig. 1-4 are represented as:

1-energy storage converter power cabinet, 2-insulating beam, 3-directional guide rail, 4-power module, 5-plug contact, 6-plug socket, 7-fixing beam, 8-first insulating support, 9-second insulating support, 10-positioning pin and 11-positioning hole.

Detailed Description

The present invention will be described with reference to the accompanying drawings and embodiments.

Referring to fig. 1-3, an embodiment of the present invention provides an energy storage converter plug-in power module structure, including: the insulating beam 2 is fixedly connected with the side wall of the energy storage converter power cabinet 1 at two ends, and a directional guide rail 3 and a power module 4 in sliding connection with the directional guide rail 3 are arranged on the insulating beam 2.

The power module 4 is inserted along the directional guide rail 3, the surface smoothness of the directional guide rail 3 is high, the insertion resistance of the power module 4 is small, and the directional guide rail 3 is fixedly connected to the insulating cross beam 2 through the conical counter bore and the bolt. The power module 4 has a compact integral structure and high integration level, can realize plug and play, is convenient to disassemble, assemble and maintain, and can effectively reduce time and labor cost.

The power module 4 is provided with a plug contact 5 and a plug socket 6 electrically connected with the plug contact 5, the plug socket 6 is fixedly arranged on a fixed cross beam 7, and two ends of the fixed cross beam 7 are fixedly connected with the side wall of the energy storage converter power cabinet 1.

A first insulating support 8 is arranged between the plug contact 5 and the housing of the power module 4. The first insulating support 8 is used for fixedly mounting the plug contact 5 on the housing of the power module 4, so that the plug contact 5 is reliably fixed and insulated from the housing of the power module 4.

And a second insulating support 9 is arranged between the plug socket 6 and the fixed cross beam 7. The second insulating support 9 maintains electrical insulation between the socket 6 and the fixed beam 7.

The number of the plug contacts 5 is two, the plug socket 6 is also provided with two plug interfaces corresponding to the two plug contacts 5, and the two plug interfaces are arranged in an insulating manner. The two plug interfaces are insulated, so that the two plug contacts 5 after being plugged are kept electrically isolated.

The insulating beam 2 is provided with a groove, and the directional guide rail 3 is fixedly arranged in the groove. The directional guide rail 3 is arranged in the groove to prevent the power module 4 from generating lateral displacement when being plugged. The insulating cross beams 2 are arranged in a plurality of numbers, and the insulating cross beams 2 are arranged in the converter power cabinet in parallel.

Referring to fig. 4, a positioning pin 10 is disposed on one side of the power module 4 in sliding contact with the orientation rail 3, a positioning hole 11 is disposed at one end of the orientation rail track close to the fixed cross beam 7, and the positioning pin 10 is movably connected with the positioning hole 11. The positioning pin 10 and the positioning hole 11 further ensure accurate insertion positioning of the power module 4.

And a power unit and a high-frequency transformer are arranged in the power module 4, and the high-frequency transformer is electrically connected with the power unit and the plug contact 5 respectively. The socket 6 is electrically connected with the copper bar, the copper bar is electrically connected with the integral loop, and the power module 4 is connected to the integral loop.

Known from the above embodiment, this embodiment provides an energy storage converter plug-in type power module 4 structure, and power module 4 realizes freely pegging graft through directional guide 3, bayonet joint and socket 6, and it is convenient to dismantle. The directional guide rail 3 realizes positioning and guiding, ensures the accuracy of the inserting and positioning of the power module 4, has interference fit between the inserting contact 5 and the inserting seat 6, has small contact resistance and avoids the problems of virtual connection and overlarge heating of contact area.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and if it is replaced, the present invention is only combined with and described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the claims of the present invention.

Claims

1. An energy storage converter plug-in power module structure, comprising: the insulating beam is fixedly connected with the side wall of the energy storage converter power cabinet at two ends, a directional guide rail and a power module in sliding connection with the directional guide rail are arranged on the insulating beam, and a plug contact is arranged on the power module; and the plug socket is electrically connected with the plug contact and is fixedly arranged on the fixed cross beam, and two ends of the fixed cross beam are fixedly connected with the side wall of the energy storage converter power cabinet.

2. The energy storage converter plug-in power module configuration according to claim 1, characterized in that a first insulating support is provided between the plug contact and the housing of the power module.

3. The plug-in power module structure of energy storage converter according to claim 1, characterized in that a second insulating support is arranged between the plug socket and the fixed beam.

4. The plug-in power module structure of an energy storage converter according to claim 1, wherein there are two plug contacts, and the socket is provided with two sockets corresponding to the two plug contacts, and the sockets are insulated from each other.

5. The plug-in power module structure of an energy storage converter according to any of claims 1 to 4, characterized in that the insulating beam is provided with a groove, and the orientation rail is fixedly arranged in the groove.

6. The plug-in power module structure of energy storage converter according to claim 1, wherein there are a plurality of said insulating beams, and a plurality of said insulating beams are arranged in parallel in said converter power cabinet.

7. The plug-in power module structure of energy storage converter according to claim 1, wherein a positioning pin is disposed on one side of the power module in sliding contact with the orientation guide rail, a positioning hole is disposed on one end of the track of the orientation guide rail close to the fixing beam, and the positioning pin is movably connected with the positioning hole.

8. The plug-in power module structure of energy storage converter according to claim 4, wherein a power unit and a high frequency transformer are arranged in the power module, and the high frequency transformer is electrically connected with the power unit and the plug contact respectively.

9. The plug-in power module structure of energy storage converter according to claim 8, wherein said plug-in socket is electrically connected to a copper bar, said copper bar being electrically connected to the integrated circuit.