CN221900443U - Liquid-cooled distribution box - Google Patents

Abstract

The utility model relates to the technical field of heat dissipation of distribution boxes, in particular to a liquid cooling distribution box, which comprises a distribution box body and a liquid cooling structure for heat dissipation inside the distribution box body; the distribution box body comprises a box body, a cross beam fixed on the inner side edge part of a box body backboard, an electric mounting plate fixed on the outer side surface of the cross beam, a plurality of electric elements mounted on the outer side surface of the electric mounting plate, a bracket fixed on the inner wall end part of the box body side plate and a wire frame fixed with the bracket; the liquid cooling structure comprises a heat conducting plate arranged on the back surface of the electric mounting plate, a liquid cooling plate attached to the back surface of the heat conducting plate, and a pipe inlet and outlet connected with the liquid cooling plate, the utility model assists the heat dissipation of the electric element arranged on the electric mounting plate by arranging the liquid cooling plate, the heat dissipation efficiency of the electric element is improved, the stable work of the electric element is ensured, the conventional fan heat dissipation and ventilation heat dissipation are replaced in a liquid cooling heat dissipation mode, the sealing treatment is carried out at the joint gap of the box body, and the dryness of the inside of the distribution box is ensured.

Description

Liquid-cooled distribution box

Technical Field

The utility model relates to the technical field of heat dissipation of distribution boxes, in particular to a liquid-cooled distribution box.

Background Art

In the container energy storage system, the power distribution part is an important component. At present, the integration of container energy storage is getting higher and higher, and most energy storage systems also use liquid cooling systems to adjust the battery temperature. However, the liquid cooling system will cause a large amount of condensation water to be generated in the container, and the humidity in the container will be relatively high. If the surface of the distribution box is provided with through grooves for ventilation and heat dissipation, in this non-sealed situation, the electrical components and internal wiring of the distribution box will all be exposed to a high humidity environment, which will reduce the creepage distance of the electrical components, affect the life of the electrical components, and put forward higher salt spray grade requirements for the sheet metal parts and fasteners in the distribution box. If the distribution box is sealed, the heat will be locked in the distribution box and cannot be dissipated, causing the temperature inside the box to rise, affecting the normal operation of the electrical components inside the distribution box and reducing their service life.

To this end, the utility model proposes a liquid-cooled distribution box to improve the above-mentioned problem.

Utility Model Content

The utility model aims to provide a liquid-cooled distribution box to solve the problem in the background art that the existing distribution box has low heat dissipation efficiency and cannot ensure dryness inside the distribution box during heat dissipation.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a liquid-cooled distribution box, comprising a distribution box body, and a liquid cooling structure for dissipating heat inside the distribution box body; the distribution box body comprises a box body, a crossbeam fixed to the inner side edge of the box body back plate, an electrical installation board fixed to the outer side of the crossbeam, a plurality of electrical components installed on the outer side of the electrical installation board, a bracket fixed to the inner wall end of the box body side plate, and a wire rack fixed to the bracket;

The liquid cooling structure comprises a heat conducting plate arranged on the back of the electrical installation board, a liquid cooling plate arranged in close contact with the back of the heat conducting plate, and an inlet and outlet pipe head connected to the liquid cooling plate.

The utility model is further configured that the liquid cooling plate has a built-in cooling pipe, and the cooling pipe is connected to an external liquid cooling system via an inlet and outlet pipe head.

The utility model is further configured that one end of the top plate of the box body is provided with an inlet terminal, and a cable gland is provided on the outside of the inlet terminal.

The utility model is further configured that one end of the bottom plate of the box body is provided with an outlet terminal, and a cable gland is provided on the outside of the outlet terminal.

The utility model is further configured that the inlet and outlet pipe heads are arranged through one end of the bottom plate of the box body.

The utility model is further configured that cables for connecting the electrical components are passed through the wire rack, and the wire rack is assembled in the box body by a plurality of grooved bars.

Compared with the prior art, the beneficial effects of the utility model are:

1. The utility model assists the heat dissipation of electrical components installed on the electrical installation board by setting a liquid cooling plate to improve the heat dissipation efficiency of the electrical components and ensure their stable operation. When it is used, the heat generated by the continuous operation of several electrical components is absorbed by the heat conducting plate and conducted to the liquid cooling plate. The coolant circulating in the cooling channel built into the liquid cooling plate takes away the heat transferred by the heat conducting plate to assist the rapid heat dissipation of the electrical components.

2. The utility model replaces the currently more conventional fan cooling and ventilation cooling with liquid cooling, sets a closed structure for the box, and seals the connecting gaps of the box, so that after the box door (the box door is a conventional structure of the distribution box and is not a necessary technical feature itself, and no further restrictive description is made here) is closed, the inside of the box cannot exchange with the outside air, thereby preventing moisture from entering the inside of the box, ensuring the dryness of the inside of the box, and reducing the possibility of electrical components getting damp. Therefore, compared with the current heat dissipation structure, this liquid cooling has greater practical value.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the overall structure of the utility model;

FIG2 is a schematic diagram of the installation of the incoming line terminal in the utility model;

FIG3 is a schematic diagram of the installation of the outlet terminal and the inlet and outlet pipe heads in the utility model;

FIG. 4 is a schematic diagram of the installation of the liquid cooling structure in the present invention.

In the figure: 1. Distribution box body; 11. Box body; 12. Crossbeam; 13. Electrical installation board; 14. Electrical components; 15. Bracket; 16. Wire rack; 17. Inlet terminal; 18. Outlet terminal; 2. Liquid cooling structure; 21. Heat conduction plate; 22. Liquid cooling plate; 23. Inlet and outlet pipe heads.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Example

Please refer to Figures 1-4, in which: This embodiment is a preferred implementation of the present technical solution, a liquid-cooled distribution box, including a distribution box body 1, and a liquid cooling structure 2 for dissipating heat inside the distribution box body 1; the distribution box body 1 includes a box body 11, a crossbeam 12 fixed to the inner side edge of the back plate of the box body 11, an electrical installation board 13 fixed to the outer side of the crossbeam 12, a plurality of electrical components 14 installed on the outer side of the electrical installation board 13, a bracket 15 fixed to the inner wall end of the side plate of the box body 11, and a wire rack 16 fixed to the bracket 15;

The liquid cooling structure 2 includes a heat conducting plate 21 disposed on the back of the electrical installation board 13, a liquid cooling plate 22 disposed on the back of the heat conducting plate 21, and an inlet and outlet pipe head 23 connected to the liquid cooling plate 22;

It should be noted that: in the liquid-cooled distribution box involved in the present application, a liquid cooling plate 22 is provided to assist the heat dissipation of the electrical components 14 installed on the electrical installation plate 13, so as to improve the heat dissipation efficiency of the electrical components 14 and ensure their stable operation. When it is used, the heat generated by the continuous operation of the electrical components 14 is absorbed by the heat conducting plate 21 and conducted to the liquid cooling plate 22. The coolant circulating in the cooling channel built into the liquid cooling plate 22 takes away the heat transferred by the heat conducting plate 21, so as to assist the rapid heat dissipation of the electrical components 14.

At the same time, the above-mentioned heat dissipation method replaces the currently more conventional fan heat dissipation and ventilation heat dissipation, sets a closed structure for the box 11, and seals the connecting gaps of the box 11, so that after the box door (the box door is a conventional structure of the distribution box, and is not a necessary technical feature itself, and no further restrictive description is made here) is closed, the inside of the box 11 cannot be exchanged with the outside air, thereby preventing moisture from entering the inside of the box 11, ensuring the dryness of the inside of the box 11, and reducing the possibility of moisture on the electrical components 14. Therefore, compared with the current heat dissipation structure, this liquid cooling has greater practical value.

As shown in FIG. 1 , the wire rack 16 is provided with cables for connecting the electrical components 14 , and the wire rack 16 is assembled in the box 11 by a plurality of grooved bars;

It should be noted that the wire rack 16 is assembled and fixed by a plurality of the grooved bars, and its structure is convenient for loading and unloading. The assembly position of the grooved bars in the wire rack 16 is determined according to the position and type of the electrical components 14 installed on the electrical installation board 13, which assists in the division of the installation area of the electrical installation board 13 and is also used for the wiring laying of the wiring of the electrical components 14. It is a common wiring structure in current distribution boxes.

As shown in FIG. 2 and FIG. 3 , an inlet terminal 17 is provided at one end of the top plate of the box body 11, and a cable gland is provided outside the inlet terminal 17; an outlet terminal 18 is provided at one end of the bottom plate of the box body 11, and a cable gland is provided outside the outlet terminal 18; the inlet and outlet pipe heads 23 are provided through one end of the bottom plate of the box body 11;

It should be noted that the inlet terminal 17 is used for the cable entry installation of the box 11, while the outlet terminal 18 is used for the cable connection installation between the box 11 and the outside. The cable glands arranged in conjunction with the inlet terminal 17 and the outlet terminal 18 act as a sealing structure to prevent external moisture from entering the distribution box.

As shown in FIG. 4 , the liquid cooling plate 22 has a built-in cooling pipe, and the cooling pipe is connected to an external liquid cooling system via an inlet and outlet pipe head 23;

It should be noted that the cooling pipe built into the liquid cooling plate 22 is used for the circulation of the cooling liquid. After the cooling pipe is connected to the external liquid cooling system through the inlet and outlet pipe heads 23, the cooling liquid flowing inside the cooling pipe is provided by the liquid cooling system, and the liquid cooling cycle is started as the liquid cooling system works.

In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims (6)

1. A liquid-cooled distribution box, comprising a distribution box body (1), and a liquid cooling structure (2) for dissipating heat inside the distribution box body (1); characterized in that: the distribution box body (1) comprises a box body (11), a crossbeam (12) fixed to the inner side edge of the back plate of the box body (11), an electrical installation board (13) fixed to the outer side of the crossbeam (12), a plurality of electrical components (14) installed on the outer side of the electrical installation board (13), a bracket (15) fixed to the inner wall end of the side plate of the box body (11), and a wire rack (16) fixed to the bracket (15); The liquid cooling structure (2) comprises a heat conducting plate (21) arranged on the back side of the electrical installation plate (13), a liquid cooling plate (22) arranged in contact with the back side of the heat conducting plate (21), and an inlet and outlet pipe head (23) connected to the liquid cooling plate (22). 2. A liquid-cooled distribution box according to claim 1, characterized in that: the liquid cooling plate (22) has a built-in cooling pipe, and the cooling pipe is connected to an external liquid cooling system through an inlet and outlet pipe head (23). 3. A liquid-cooled distribution box according to claim 1, characterized in that: an inlet terminal (17) is provided at one end of the top plate of the box body (11), and a cable gland is provided on the outside of the inlet terminal (17). 4. A liquid-cooled distribution box according to claim 1, characterized in that: an outlet terminal (18) is provided at one end of the bottom plate of the box body (11), and a cable gland is provided outside the outlet terminal (18). 5. A liquid-cooled distribution box according to claim 1, characterized in that: the inlet and outlet pipe heads (23) are arranged through one end of the bottom plate of the box body (11). 6. A liquid-cooled distribution box according to claim 1, characterized in that: cables for connecting the electrical components (14) are passed through the inside of the wire rack (16), and the wire rack (16) is assembled in the box body (11) by a plurality of grooved bars.