CN219068738U - High-voltage box and battery assembly - Google Patents

Abstract

The utility model provides a high-voltage box and a battery assembly, wherein the high-voltage box comprises a plurality of side plates and a bottom plate, the side plates are arranged on the periphery of the bottom plate and are enclosed with the bottom plate to form a containing groove, and the containing groove is used for containing components; the high-pressure box is provided with a cooling flow passage, and the cooling flow passage passes through at least one side plate; the cooling flow channel is used for containing cooling liquid or flowing through the cooling liquid, the cooling liquid in the cooling flow channel exchanges heat with the side plates, at the moment, the cooling flow channel at least passes through one side plate, the cooling liquid in the cooling flow channel exchanges heat with the side plates and dissipates heat of the side plates and components in the containing groove, so that the overall service life of the components and the battery assembly is prolonged, in addition, the cooling flow channel cools the components along different directions, and the heat dissipation capacity of the high-pressure box is improved, so that the load capacity of the high-pressure box is improved.

Description

High voltage box and battery components

technical field

The present application belongs to the technical field of batteries, and in particular relates to a high-voltage box and a battery assembly.

Background technique

With the development of science and technology, battery components are widely used in electronic equipment, new energy vehicles, and belong to power battery packs. Battery components include high-voltage boxes and components. The components are the main energy supply parts and emit a lot of heat under working conditions. , at this time, the components are accommodated in the high-voltage box and sealed in the high-voltage box.

In the prior art, the components are installed at the bottom of the high-voltage box and perform heat exchange with the bottom of the high-voltage box. At this time, the existing high-voltage box can only dissipate heat from the bottom area of the components, resulting in The heat dissipation ability is poor.

Utility model content

Embodiments of the present application provide a high-voltage box and a battery assembly to solve the problem of poor heat dissipation of the existing high-voltage box.

In the first aspect, the embodiment of the present application provides a high-voltage box, the high-voltage box includes a plurality of side plates and a bottom plate, and the plurality of side plates are arranged on the peripheral side of the bottom plate, and are enclosed with the bottom plate to form an accommodating a slot, the accommodating slot is used for accommodating components;

The high-pressure box has a cooling flow channel, and the cooling flow channel passes through at least one of the side plates; the cooling flow channel is used to accommodate or allow the cooling liquid to flow through, and the cooling liquid in the cooling flow channel heat exchange with the side plates.

Optionally, the cooling flow channel includes a first flow channel, and the first flow channel passes through the two adjacently arranged side plates or the two oppositely arranged side plates.

Optionally, the first flow passage sequentially passes through each of the side plates along the circumference of the high-pressure box, and is arranged in a closed loop.

Optionally, the cooling flow channel includes a second flow channel, and the second flow channel passes through the bottom plate and communicates with the first flow channel.

Optionally, the second flow channel communicates with the first flow channel of each of the side plates along the circumferential direction of the bottom plate.

Optionally, the side plate is a hollow structure, and the cooling channel is at least partly an inner space of the side plate.

Optionally, the cooling channel has a liquid outlet, and the liquid outlet is provided on at least one of the side plates; the liquid outlet is used for the cooling liquid to enter.

Optionally, the cooling channel has a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are distributed on the same side plate or two different side plates.

Optionally, the liquid inlet is arranged above the liquid outlet.

Optionally, the side plate is provided with a via hole, and the via hole is used for objects to pass through, and the cooling flow channel is isolated from the via hole by the hole wall of the via hole, and the cooling flow channel The track is on the outer peripheral side of the via hole.

Optionally, the top end of the side plate is bent with a mounting portion, the mounting portion is formed by bending the top end of the side plate outward, and the mounting portion is used for connecting the object to be fixed.

In the second aspect, the embodiment of the present application further provides a battery assembly, which includes the above-mentioned high-voltage box and components, and the components are housed in the high-voltage box and perform heat exchange with the high-voltage box.

The high-voltage box and the battery assembly provided in the embodiment of the present application, the high-voltage box includes a plurality of side plates and a bottom plate, and the multiple side plates are arranged on the periphery of the bottom plate, and are enclosed with the bottom plate to form a receiving groove, and the receiving groove is used to accommodate components; The high-pressure box has a cooling flow channel, and the cooling flow channel passes through at least one side plate; the cooling flow channel is used to accommodate the cooling liquid or allow the cooling liquid to flow through, and the cooling liquid in the cooling flow channel exchanges heat with the side plate. At this time, the cooling flow The channel passes through at least one side plate, and the coolant in the cooling channel exchanges heat with the side plate, and dissipates heat to the side plate and the components in the receiving slot, thereby improving the overall life of the components and battery components. In addition, the cooling channel The components are cooled in different directions, and the heat dissipation capacity of the high-voltage box is improved, thereby increasing the load capacity of the high-voltage box.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings that need to be used in the description of the embodiments. Apparently, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative efforts.

For a more complete understanding of the present application and its beneficial effects, the following will be described in conjunction with the accompanying drawings. Wherein, the same reference numerals denote the same parts in the following description.

Fig. 1 is a schematic structural diagram of a high-pressure box provided in an embodiment of the present application.

Fig. 2 is a front view of the high-voltage box provided by the embodiment of the present application.

FIG. 3 is a cross-sectional view at point A in FIG. 2 .

FIG. 4 is a cross-sectional view at B in FIG. 3 .

Fig. 5 is a front view of a high voltage box provided by another embodiment of the present application.

100. High pressure box; 10. Side plate; 10a. Accommodating groove; 11. Via hole; 12. Installation part; 20. Bottom plate; 30. Cooling channel; 30a. Liquid outlet; 30b. Liquid inlet; Liquid port; 31, the first flow channel; 32, the second flow channel.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

With the development of science and technology, battery components are widely used in electronic equipment, new energy vehicles, and belong to power battery packs. Battery components include high-voltage boxes and components. The components are the main energy supply parts and emit a lot of heat under working conditions. , at this time, the components are accommodated in the high-voltage box and sealed in the high-voltage box.

In the prior art, the bottom of the high-pressure box is provided with a liquid-cooled flow channel, which is used for cold water to enter. At this time, the cold water flows in the liquid-cooled flow channel and is at the bottom of the high-pressure box, which can only cool the components The heat dissipation is carried out in the bottom area of the high pressure box, resulting in poor heat dissipation capacity of the existing high-pressure box.

The embodiment of the present application provides a high voltage box 100 and its battery assembly to solve the problem of poor heat dissipation of the existing high voltage box 100 . It will be described below in conjunction with the accompanying drawings.

The high voltage box 100 provided in the embodiment of the present application can be applied to a battery assembly, and the battery assembly belongs to a battery pack. For example, please refer to FIG. 1 to FIG. 4 , and FIG. 1 is a schematic structural diagram of a high-pressure box provided in an embodiment of the present application. Fig. 2 is a front view of the high-voltage box provided by the embodiment of the present application. FIG. 3 is a cross-sectional view at point A in FIG. 2 . FIG. 4 is a cross-sectional view at B in FIG. 3 .

In the first aspect, the embodiment of the present application provides a high-voltage box 100. The high-voltage box 100 includes a plurality of side plates 10 and a bottom plate 20. The plurality of side plates 10 are arranged on the periphery of the bottom plate 20 and surround the bottom plate 20 to form a receiving groove. 10a, the accommodation groove 10a is used to accommodate components, the components are accommodated in the accommodation groove 10a, and installed on the bottom plate 20 or the side plate 10, the components dissipate heat in the working state, optional, the components are battery-related electronic part.

Optionally, the receiving groove 10a is a square groove, which is not limited here.

The high-pressure box 100 has a cooling channel 30, and the cooling channel 30 passes through at least one side plate 10; the cooling channel 30 is used to accommodate the cooling liquid or allow the cooling liquid to flow through, and the cooling liquid in the cooling channel 30 is connected with the side plate 10. heat exchange.

At this time, the cooling channel 30 passes through at least one side plate 10, and the cooling liquid in the cooling channel 30 exchanges heat with the side plate 10, and dissipates heat to the side plate 10 and the components in the receiving groove 10a, thereby improving the performance of the components. In addition, the cooling channel 30 cools the components in different directions, and improves the heat dissipation capacity of the high voltage box 100 , thereby increasing the load capacity of the high voltage box 100 .

Among them, the cooling channel 30 passes through each side plate 10 in turn, which facilitates the increase of the heat exchange area of the high-voltage box 100, and improves the heat dissipation area and heat dissipation effect of the high-voltage box 100, and avoids continuous operation of components in a high-temperature environment. .

In one embodiment, the cooling liquid is in the cooling channel 30 and stored in the side plate 10, the cooling liquid in the cooling channel 30 exchanges heat with the side plate 10, and absorbs the heat dissipated by the components, so that To cool down the side plate 10 and the components, and to dissipate heat from the side plate 10 and the components in the receiving groove 10a, thereby improving the overall life of the components and the battery assembly. In addition, the cooling channel 30 cools the components along different directions The temperature is lowered, and the heat dissipation capacity of the high-voltage box 100 is improved, thereby increasing the load capacity of the high-voltage box 100 .

In another embodiment, the cooling liquid is in the cooling channel 30 and flows in the cooling channel 30. At this time, a pump body is provided outside the high-pressure tank 100, and the infusion channel of the pump body is connected to the cooling channel 30. The liquid inlet 30b, the liquid discharge channel of the pump body is connected to the liquid outlet 30c, and the cooling liquid circulates along the cooling flow channel 30 driven by the pump body, and takes away the heat emitted by the components during the flow.

In this embodiment, the cooling flow channel 30 includes a first flow channel 31, and the first flow channel 31 passes through the adjacently arranged two side plates 10 or the oppositely arranged two side plates 10, at this time, the side plate 10 is a hollow structure, and the cooling flow The channel 30 is at least partly the inner space of the side plate 10, and the first flow channel 31 makes full use of the inner space of the side plate 10, and the cooling space of the first flow channel 31 can also be improved by increasing the side plate 10, thereby improving the high-pressure box 100. heat exchange area.

In addition, the first flow channel 31 passes through each side plate 10 sequentially along the circumferential direction of the high-pressure box 100, and is arranged in a closed loop. At this time, the first flow channel 31 can be a closed-loop flow channel, and the closed-loop flow channel is opposite to Components are arranged, the cooling liquid can flow along the closed-loop flow channel, and flow continuously relative to the surroundings of the components, so as to take away the heat dissipated by the components and realize the cooling effect of the surroundings of the components. Optionally, the closed-loop flow channel may be an annular flow channel or a serpentine flow channel, and each side plate 10 has a built-in first flow channel 31 .

In this embodiment, the cooling flow channel 30 includes a second flow channel 32, the second flow channel 32 passes through the bottom plate 20, and communicates with the first flow channel 31, at this time, the second flow channel 32 is built in the bottom plate 20, the second flow channel 32 The flow channel 32 communicates with the first flow channel 31 of each side plate 10 along the circumferential direction of the bottom plate 20 .

The second flow channel 32 of the bottom plate 20 communicates with the first flow channel 31 of each side plate 10, which improves the overall area of the cooling flow channel 30, and increases the flow length of the cooling liquid in the cooling flow channel 30, and the cooling flow channel 30 Arranged along the peripheral direction of the components, and heat exchange is performed on the components along the peripheral direction, the cooling liquid in each first flow channel 31 and the second flow channel 32 cools the components in different directions, and improves the high pressure box 100, thereby increasing the load capacity of the high voltage box 100, and reducing the after-sales maintenance cost of the high voltage box 100 and battery components.

In another embodiment, refer to FIG. 5 , which is a front view of a high-voltage box provided in another embodiment of the present application. When the cooling channel 30 is used to accommodate cooling liquid, the cooling channel 30 has a liquid outlet 30a, which is disposed on at least one side plate 10; the liquid outlet 30a is used for entering the cooling liquid.

At this time, the first flow channel 31 is disposed in one side plate 10 , the liquid outlet 30 a is arranged in the side plate 10 , and the cooling liquid enters the first flow channel 31 through the liquid port 30 a and is stored in the first flow channel 31 . When the cooling liquid needs to be discharged, the cooling liquid in the first channel 31 is discharged outward along the liquid outlet 30a.

In this embodiment, the cooling channel 30 is used for cooling liquid to flow through, the cooling channel 30 has a liquid inlet 30b and a liquid outlet 30c, and the liquid inlet 30b and the liquid outlet 30c are distributed on the same side plate 10 or different The two side panels 10.

At this time, the liquid inlet 30b and the liquid outlet 30c of the cooling channel 30 are distributed on the same side plate 10 or different side plates 10, when the liquid inlet 30b and the liquid outlet 30c of the cooling channel 30 are on the same side plate At 10 o'clock, the liquid inlet 30b is arranged above the liquid outlet 30c, and the cooling liquid flows along the cooling channel 30 from the liquid inlet 30b to the liquid outlet 30c. The liquid inlet 30b is arranged above the liquid outlet 30c. At this time, the coolant enters the cooling channel 30 from the liquid inlet 30b, and can be discharged to the liquid outlet 30c by its own gravity. At this time, the coolant flows under its own gravity. The flow speed is increased under the action.

When the liquid inlet 30b and the liquid outlet 30c of the cooling channel 30 are located on different side plates 10, the liquid inlet 30b and the liquid outlet 30c of the cooling channel 30 can be located in the opposite side plates 10, and the liquid inlet The port 30b is disposed above the liquid outlet 30c, and the cooling liquid flows along the cooling channel 30 from the liquid inlet 30b to the liquid outlet 30c. The liquid inlet 30b is arranged above the liquid outlet 30c. At this time, the coolant enters the cooling channel 30 from the liquid inlet 30b, and can be discharged to the liquid outlet 30c by its own gravity. At this time, the coolant flows under its own gravity. The flow speed is increased under the action.

At this time, the liquid inlet 30b and the liquid outlet 30c can be distributed on the front side plate 10 and the rear side plate 10 , or the liquid inlet 30b and the liquid outlet 30c can be distributed on the left side plate 10 and the right side plate 10 .

The communication between the second flow channel 32 of the bottom plate 20 and the first flow channel 31 of each side plate 10 improves the area of the cooling flow channel 30, and increases the flow length of the cooling liquid in the cooling flow channel 30, and the cooling flow channel 30 is along the The components are arranged in the peripheral direction, and the components are heat exchanged along the peripheral direction, and the cooling liquid in each first flow channel 31 and the second flow channel 32 cools the components in different directions, and improves the temperature of the high-voltage box 100. Heat dissipation capacity, thereby improving the load capacity of the high voltage box 100, and in addition, reducing the after-sales maintenance cost of the high voltage box 100 and battery components

In addition, the side plate 10 is provided with a via hole 11, and the via hole 11 is used for passing through the object, and the cooling channel and the via hole 11 are separated by the hole wall of the via hole 11, and the cooling channel is wrapped around the wall of the via hole 11. peripheral side. Specifically, the cooling flow channel takes the first flow channel 31 as an example, that is, the first flow channel 31 and the through hole 11 are arranged at intervals, the first flow channel 31 is located on the outer peripheral side of the through hole 11, and the first flow channel 31 is used for the flow of cooling liquid. In this case, there may be multiple via holes 11, and the multiple via holes 11 are located on the same side plate 10 or adjacent two side plates 10.

In addition, the top ends of the plurality of side plates 10 are bent with mounting portions 12, the mounting portions 12 are formed by bending the top ends of the side plates 10 outward, and the mounting portions 12 are used to connect objects to be fixed. Optionally, the mounting portions 12 are Arranged in the horizontal direction, and fixedly connected to the object to be fixed by studs, at this time, the installation part 12 is used to connect the object to be fixed, the high-voltage box 100 is connected to the object to be fixed through the installation part 12, and there is a gap between the installation part 12 and the object to be fixed The mounting structure does not occupy the space of the first flow channel 31 and the second flow channel 32, thereby ensuring the length of the first flow channel 31 and the second flow channel 32, and ensuring the flow length of the cooling liquid. Optionally, the mounting part 12 is connected to other objects through studs.

In the second aspect, the embodiment of the present application also provides a battery assembly, the battery assembly includes the above-mentioned high-voltage box 100 and components, and the components are accommodated in the high-voltage box 100 and perform heat exchange with the high-voltage box 100 .

The high-voltage box 100 and its battery assembly provided in the embodiment of the present application, the high-voltage box 100 includes a plurality of side plates 10 and a bottom plate 20, and the plurality of side plates 10 are arranged on the peripheral side of the bottom plate 20, and are enclosed with the bottom plate 20 to form a receiving groove 10a , the accommodating groove 10a is used to accommodate components; the high-voltage box 100 has a cooling flow channel 30, and the cooling flow channel 30 passes through at least one side plate 10; The cooling liquid in the cooling channel 30 exchanges heat with the side plate 10. At this time, the cooling channel 30 passes through at least one side plate 10, and the cooling liquid in the cooling channel 30 exchanges heat with the side plate 10, and the side plate 10 and The components in the receiving groove 10a dissipate heat, thereby improving the overall life of the components and battery components. In addition, the cooling flow channel 30 cools the components along different directions, and improves the heat dissipation capacity of the high-voltage box 100, thereby improving the high-voltage box 100. In addition, the after-sales maintenance cost of the high voltage box 100 and battery components is reduced.

In the foregoing embodiments, the descriptions of each embodiment have their own emphases, and for parts not described in detail in a certain embodiment, reference may be made to relevant descriptions of other embodiments.

In the description of the present application, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more features. The high-voltage box provided by the embodiment of the present application has been introduced in detail above, and the principle and implementation of the present application have been explained by using specific examples in this article. The description of the above embodiment is only used to help understand the method and core of the present application At the same time, for those skilled in the art, according to the idea of this application, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be construed as limiting the application.

Claims (12)

1. The high-pressure box is characterized by comprising a plurality of side plates and a bottom plate, wherein the side plates are arranged on the periphery of the bottom plate and are enclosed with the bottom plate to form a containing groove, and the containing groove is used for containing components;

the high-pressure tank is provided with a cooling flow passage, and the cooling flow passage passes through at least one side plate; the cooling flow channel is used for containing cooling liquid or allowing the cooling liquid to flow through, and the cooling liquid in the cooling flow channel exchanges heat with the side plate.

2. The high pressure tank of claim 1, wherein the cooling flow passage comprises a first flow passage passing through two of the side plates disposed adjacently or two of the side plates disposed opposite each other.

3. The high pressure tank of claim 2, wherein the first flow passage passes through each of the side plates in turn in a circumferential direction of the high pressure tank and is arranged in a closed loop.

4. The high pressure tank of claim 2, wherein the cooling flow passage includes a second flow passage that passes through the bottom plate and communicates with the first flow passage.

5. The high pressure tank of claim 4, wherein said second flow passage communicates through said first flow passage of each of said side plates in a circumferential direction of said bottom plate.

6. The high-pressure tank according to any one of claims 1 to 5, wherein the side plate is of a hollow structure, and the cooling flow passage is at least partially an inner space of the side plate.

7. The high pressure tank of claim 1, wherein the cooling flow passage has a liquid passing port provided to at least one of the side plates; the liquid passing port is used for allowing the cooling liquid to enter.

8. The high pressure tank of claim 1, wherein the cooling flow passage has a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet being distributed on the same side plate or on different side plates.

9. The high pressure tank of claim 8, wherein the liquid inlet is disposed above the liquid outlet.

10. The high-pressure tank according to claim 1, wherein the side plate is provided with a via hole for penetration of an object, and the cooling flow passage is isolated from the via hole by a wall of the via hole, the cooling flow passage being on an outer peripheral side of the via hole.

11. The high-pressure tank according to claim 1, wherein the top end of the side plate is bent with a mounting portion formed by bending the top end of the side plate outward, the mounting portion being for connecting an object to be fixed.

12. A battery assembly comprising the high-voltage tank according to any one of claims 1 to 9 and components accommodated in the high-voltage tank and heat-exchanged with the high-voltage tank.

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