CN217426908U

CN217426908U - Battery pack

Info

Publication number: CN217426908U
Application number: CN202220622141.7U
Authority: CN
Inventors: 潘锋; 徐波; 苏金国
Original assignee: Sungrow Energy Storage Technology Co Ltd
Current assignee: Sungrow Energy Storage Technology Co Ltd
Priority date: 2022-03-21
Filing date: 2022-03-21
Publication date: 2022-09-13
Anticipated expiration: 2032-03-21

Abstract

The utility model discloses a battery package, battery package includes: a housing; the water cooling plate is arranged in the shell; the water pipe, the one end of water pipe with water-cooling board fixed connection, the other end of water pipe passes the casing exposes the casing outside, the water pipe structure as an organic whole perhaps the water pipe includes the multistage welded branch pipe section in proper order, just the water pipe with the inside intercommunication of water-cooling board. The utility model provides an among the battery package structure, the one end and the water-cooling board fixed connection of water pipe, the casing is stretched out to the other end of water pipe, and the casing is inside not to have any joint cooperation. Compared with the prior art in which two pipe joints are connected through a hose, the number of the at least two joints is reduced, and the risk of leakage inside the shell is greatly reduced.

Description

Battery pack

Technical Field

The utility model relates to a battery heat dissipation technical field, more specifically say, relate to a battery package.

Background

As shown in fig. 1 to fig. 3, a first pipe joint 011 is provided on a water cooling plate 01 of the battery pack, a second pipe joint 021 is provided on a housing 02 of the battery pack, and the first pipe joint 011 and the second pipe joint 021 are connected by a hose 03. So, connect the cooperation number of times many, it is higher to reveal the risk. In addition, the maintenance and the disassembly are complex and the cost is higher.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a battery pack, this battery pack's structural design can reduce effectively and connect cooperation number of times, reduces and reveals the risk.

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

a battery pack comprises a shell and a water cooling plate arranged in the shell;

the water pipe, the one end of water pipe with water-cooling board fixed connection, the other end of water pipe passes the casing exposes the casing outside, the water pipe structure as an organic whole perhaps the water pipe includes the multistage welded branch pipe section in proper order, just the water pipe with the inside intercommunication of water-cooling board.

Preferably, in the above battery pack, the number of the water pipes is plural, and at least one of the water pipes is a water inlet pipe and at least one of the water pipes is a water outlet pipe.

Preferably, in the above battery pack, the water pipe includes a first pipe section and a second pipe section that are connected in sequence, the first pipe section and the second pipe section are smoothly transited, and a center line of the first pipe section intersects a center line of the second pipe section.

Preferably, in the above battery pack, a center line of the first tube segment is an arc line, and a center line of the second tube segment is a straight line.

Preferably, in the battery pack, the water cooling plate is fixedly connected to the housing;

the water cooling plate is fixedly connected with the shell in a friction stir welding mode.

Preferably, in the above battery pack, a pressing plate fixedly connected to the housing is further included, the pressing plate is located between the water pipe and the inner wall of the housing, and the pressing plate presses the water cooling plate against the inner wall of the housing.

Preferably, in the above battery pack, the pressing plate is fixedly connected to an inner wall of the housing by a screw.

Preferably, in the above battery pack, a gasket is further disposed between the pressure plate and the inner wall of the housing.

Preferably, in the above battery pack, the housing is provided with a through hole through which the water pipe passes, and the outer wall of the water pipe and the inner wall of the through hole are sealed by a sealing gasket.

Preferably, in the battery pack, the water pipe is welded to the water cooling plate.

The utility model provides a battery pack includes casing, water-cooling board and water pipe. Wherein, the water-cooling board sets up in the casing. The water-cooling plate is mainly used for dissipating heat of the battery pack, the cooling water channel is arranged inside the water-cooling plate, and cooling water flows through the inside of the water-cooling plate and takes away heat in the battery pack.

One end of the water pipe is fixedly connected with the water cooling plate, and the other end of the water pipe penetrates through the shell and is exposed outside the shell. The first end and the water-cooling board fixed connection of water pipe promptly to the first end and the inside intercommunication of water-cooling board of water pipe, the cooling water in the water pipe can flow in the cooling water passageway in the water-cooling board, or the cooling water in the cooling water passageway in the cold board is originally internal can flow in the water pipe. The second end of the water pipe passes through the housing, and the second end of the water pipe is exposed outside the housing. Specifically, a first end of the water tube is positioned within the housing, a second end of the water tube is positioned outside the housing, and the water tube passes through a wall of the housing.

The water pipe is of an integrated structure, and particularly, the water pipe is of an integrated structure.

According to the above, the utility model provides an among the battery package structure, the one end and the water-cooling board fixed connection of water pipe, the casing is stretched out to the other end of water pipe, and the casing is inside not have any joint cooperation. Compared with the prior art in which two pipe joints are connected through a hose, the number of the fittings is reduced, and the leakage risk inside the shell is greatly reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a partial schematic view of a water cooling plate according to the prior art;

FIG. 2 is a schematic diagram of a prior art water cooling plate and housing assembly;

FIG. 3 is a schematic view of a prior art hose coupling a first adapter and a second adapter;

fig. 4 is a schematic structural diagram of a part of a battery pack according to an embodiment of the present invention;

fig. 5 is an assembly diagram of a water cooling plate and a water pipe according to an embodiment of the present invention;

fig. 6 is a schematic view of a partial assembly of a battery pack according to an embodiment of the present invention.

In fig. 1-3:

01-water cooling plate, 011-first pipe joint, 02-shell, 021-second pipe joint and 03-hose;

in fig. 4-6:

1-shell, 2-water cooling plate, 3-water pipe, 3 a-first pipe section, 3 b-second pipe section, 4-pressing plate.

Detailed Description

An object of the utility model is to provide a battery package, the structural design of this battery package can reduce effectively and connect cooperation number of times, reduces and reveals the risk.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left" and "right" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the indicated position or element must have a specific orientation, be constituted in a specific orientation, and be operated, and thus, are not to be construed as limitations of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 4-6, the battery pack of the present invention includes a housing 1, a water-cooling plate 2 and a water pipe 3. Wherein, the water cooling plate 2 is arranged in the shell 1. The water cooling plate 2 is mainly used for dissipating heat of the battery pack, a cooling water channel is arranged inside the water cooling plate 2, and heat in the battery pack is taken away when cooling water flows through the inside of the water cooling plate 2.

One end of the water pipe 3 is fixedly connected with the water cooling plate 2, and the other end of the water pipe 3 penetrates through the shell 1 and is exposed outside the shell 1. The first end and the water-cooling board 2 fixed connection of water pipe 3 promptly to the first end and the inside intercommunication of water-cooling board 2 of water pipe 3, the cooling water in the water pipe 3 can flow in the cooling water passageway in the water-cooling board 2, perhaps the cooling water in the cooling water passageway in the cold plate body can flow in the water pipe 3. The second end of the water pipe 3 passes through the housing 1, and the second end of the water pipe 3 is exposed outside the housing 1. Specifically, a first end of the water pipe 3 is located inside the housing 1, a second end of the water pipe 3 is located outside the housing 1, and the water pipe 3 penetrates through the wall of the housing 1.

The water pipe 3 is an integrated structure, and specifically, the water pipe 3 is an integrated structure. Or the water pipe 3 comprises a plurality of sections of pipe sections which are welded in sequence. That is, the water pipe 3 comprises a plurality of pipe sections which are sequentially connected end to end, and two adjacent pipe sections are welded.

According to the above, the utility model provides an in the battery package structure, the one end and the 2 fixed connection of water-cooling board of water pipe 3, the other end of water pipe 3 stretches out casing 1, and 1 inside nothing of casing connects the cooperation. Compared with the prior art in which two pipe joints are connected through a hose, the number of the fittings is reduced, and the leakage risk inside the housing 1 is greatly reduced.

Optionally, the number of the water pipes 3 is multiple, at least one water pipe 3 is a water inlet pipe, and at least one water pipe is a water outlet pipe. Specifically, cooling water from a water source may enter the water-cooling plate 2 through a water inlet pipe. The cooling water in the water cooling plate 2 can flow into the water pipe 3 and then be discharged. Of course, the number of the water pipes 3 may be only one, and the number of the water pipes 3 may be set according to the actual situation, and is not limited herein.

In a specific embodiment, the water pipe 3 comprises a first pipe section 3a and a second pipe section 3b which are connected in sequence, the first pipe section 3a and the second pipe section 3b are in smooth transition, and the center line of the first pipe section 3a is intersected with the center line of the second pipe section 3 b. With the arrangement, the position of the water cooling plate 2 and the position of the through hole through which the water supply pipe 3 of the housing 1 passes are not limited, and the first pipe section 3a and the second pipe section 3b are adaptively arranged according to the position of the water cooling plate 2 and the position of the through hole through which the water supply pipe 3 of the housing 1 passes. Specifically, the second pipe section 3b penetrates through the wall of the shell 1, and the first pipe section 3a is fixedly connected with the water cooling plate 2.

Further, the centerline of the first pipe section 3a is an arc and the centerline of the second pipe section 3b is a straight line. So, the both ends of water pipe 3 can be located two planes respectively, the relative position of design water-cooling board 2 and water source of being convenient for more.

Of course, the center line of the first pipe section 3a and the center line of the second pipe section 3b may be perpendicular to each other, or the water pipe 3 may be a straight pipe as a whole, which is not limited herein.

In a specific embodiment, the water-cooling plate 2 may be fixedly connected to the housing 1 to prevent the water-cooling plate 2 from being displaced.

Further, the water cooling plate 2 and the shell 1 are fixedly connected through friction stir welding. Of course, the water-cooled plate 2 and the housing 1 may be fixedly connected by arc welding or resistance welding, or the water-cooled plate 2 and the housing 1 may be connected by screws, which is not limited herein.

Because the hindrance effect of water pipe 3, the position that is located water pipe 3 downside of water-cooling board 2 is not convenient for operate when welding with casing 1, consequently the battery package still include with casing 1 fixed connection's clamp plate 4, clamp plate 4 is located between the inner wall of water pipe 3 and casing 1, and clamp plate 4 compresses tightly water-cooling board 2 in the inner wall of casing 1. The water cooling plate 2 is pressed against the inner wall of the shell 1 by the pressing action of the pressing plate 4, so that the sealing performance of the shell 1 is improved.

Further, the pressing plate 4 and the inner wall of the housing 1 may be fixedly connected by a screw, and of course, the pressing plate 4 and the inner wall of the housing 1 may also be clamped, which is not limited herein.

In order to further improve the sealing performance of the housing 1, a gasket is further provided between the pressure plate 4 and the inner wall of the housing 1. The gasket may be a rubber gasket or the like. The outer gasket also has a cushioning effect to prevent the water-cooling panel 2 from deforming. It can be understood that the casing 1 and the water cooling plate 2 are provided with heat dissipation holes at the opposite positions, and the water cooling plate 2 abuts against the inner wall of the casing 1 to seal the heat dissipation holes.

It can be understood that the housing 1 is provided with a through hole through which the water supply pipe 3 passes, and the outer wall of the water pipe 3 and the inner wall of the through hole are sealed by a sealing gasket, so as to further improve the sealing performance of the housing 1.

One end of the water pipe 3 is welded to the water cooling plate, but it is needless to say that one end of the water pipe 3 may be riveted to the water cooling plate 2, and the present invention is not limited thereto.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Claims

1. A battery pack, comprising:

the water cooling device comprises a shell (1) and a water cooling plate (2) arranged in the shell (1);

water pipe (3), the one end of water pipe (3) with water-cooling board (2) fixed connection, the other end of water pipe (3) passes casing (1) exposes casing (1) outside, water pipe (3) structure as an organic whole perhaps water pipe (3) include the multistage welded branch pipe section in proper order, just water pipe (3) with the inside intercommunication of water-cooling board (2).

2. The battery pack according to claim 1, wherein the number of the water pipes (3) is plural, and at least one of the water pipes (3) is a water inlet pipe and at least one of the water pipes (3) is a water outlet pipe.

3. The battery pack according to claim 1, wherein the water pipe (3) comprises a first pipe section (3a) and a second pipe section (3b) connected in sequence, the first pipe section (3a) and the second pipe section (3b) are smoothly transited, and a center line of the first pipe section (3a) intersects a center line of the second pipe section (3 b).

4. A battery pack according to claim 3, wherein the centre line of the first tube section (3a) is an arc and the centre line of the second tube section (3b) is a straight line.

5. The battery pack according to claim 1, wherein the water-cooled plate (2) is fixedly connected to the housing (1);

the water cooling plate (2) is fixedly connected with the shell (1) in a friction stir welding mode.

6. The battery pack according to claim 1, further comprising a pressing plate (4) fixedly connected with the housing (1), wherein the pressing plate (4) is located between the water pipe (3) and the inner wall of the housing (1) and the pressing plate (4) presses the water-cooling plate (2) against the inner wall of the housing (1).

7. The battery pack according to claim 6, wherein the pressure plate (4) is fixedly connected to the inner wall of the case (1) by a screw.

8. The battery pack according to claim 6, wherein a sealing gasket is further provided between the pressure plate (4) and the inner wall of the case (1).

9. The battery pack according to claim 1, wherein the case (1) is provided with a through hole for the water pipe (3) to pass through, and the outer wall of the water pipe (3) and the inner wall of the through hole are sealed by a sealing gasket.

10. The battery pack according to claim 1, wherein the water pipe (3) is welded to the water-cooled plate (2).