CN219106277U

CN219106277U - Liquid cooling plate and battery module

Info

Publication number: CN219106277U
Application number: CN202223166224.9U
Authority: CN
Inventors: 黄伟才; 李凡; 陈智伟; 陈朝海; 孟晨阳
Original assignee: Hubei Eve Power Co Ltd
Current assignee: Hubei Eve Power Co Ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-05-30
Anticipated expiration: 2032-11-28
Also published as: WO2024113460A1

Abstract

The utility model belongs to the technical field of batteries, and discloses a liquid cooling plate and a battery module, wherein a transverse plate of the liquid cooling plate is parallel to a horizontal plane and is used for installing a battery core of the battery module, a vertical plate is perpendicular to the horizontal plane, the side surface of the battery core is attached to the vertical plate, the vertical plate is provided with a cold liquid flow channel for a cooling medium to pass through, the cold liquid flow channel is communicated with an inner cavity of a first cold liquid pipeline, and the cooling medium can be introduced into the cold liquid flow channel through the inner cavity of the first cold liquid pipeline, so that the side surface of the battery core can be cooled; in addition, diaphragm and riser integrated into one piece, can simplify the installation flow of liquid cooling board to promote structural strength simultaneously.

Description

Liquid cooling plate and battery module

Technical Field

The utility model relates to the technical field of batteries, in particular to a liquid cooling plate and a battery module.

Background

In the battery module, a cooling liquid flow channel is usually arranged at the top or bottom of the battery cell for cooling the battery cell, and a cooling medium is introduced into the cooling liquid flow channel to cool the battery cell. But has a problem in that the middle portion of the battery cells cannot be cooled effectively.

In view of the foregoing, the prior art provides a battery assembly including a plurality of cooling plates, at least one of the plurality of cooling plates being located at a side portion of a plurality of cells and being disposed between two adjacent rows of cells, each cooling plate including a heat-conductive plate and a cooling duct embedded on the heat-conductive plate, cooling of the side portion of the cells being accomplished by introducing a cooling medium into the cooling duct. However, there is a problem in that, after the cooling plate is introduced, the battery cells and the cooling plate need to be sequentially mounted to the support plate at the time of assembly, resulting in a complicated process of mounting the battery pack.

Disclosure of Invention

According to one aspect of the utility model, the utility model provides a liquid cooling plate to solve the problems that the middle part of a battery cell cannot be effectively cooled and the installation process of a battery assembly is complicated due to the fact that a plurality of cooling plates are introduced in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the liquid cooling board for with first cold liquid pipeline connection, first cold liquid pipeline has the first cold liquid pipeline inner chamber that is used for the coolant medium to pass through, include:

the transverse plate is parallel to the horizontal plane and is used for installing the battery cells of the battery module;

the vertical plate is perpendicular to a horizontal plane, the transverse plate is integrally formed with the vertical plate, the side face of the battery cell is attached to the vertical plate, a cold liquid flow passage is formed in the vertical plate and used for cooling medium to pass through, and the cold liquid flow passage (21) is communicated with the inner cavity of the first cold liquid pipeline.

As the preferred scheme of liquid cooling board, still include first current collector, first current collector set up in any end of riser, first current collector has the first manifold that is used for the coolant medium to pass through, first manifold with Leng Yeliu way intercommunication, first current collector is used for being connected with first cold liquid pipeline, first cold liquid pipeline inner chamber with first manifold intercommunication.

As the preferred scheme of liquid cooling board, still including set up in the second current collector of riser, the second current collector is located the riser is kept away from the one end of first current collector, the second current collector has the second manifold that is used for the coolant medium to pass through, the second manifold with Leng Yeliu is said, the second current collector is used for being connected with the cold liquid pipeline of second, the cold liquid pipeline of second has the cold liquid pipeline inner chamber of second that is used for the coolant medium to pass through, the cold liquid pipeline inner chamber of second with the second manifold intercommunication.

As the preferable scheme of liquid cooling board, have many cold liquid flow path in the riser, many cold liquid flow path is along vertical direction parallel and the interval sets up.

As the preferable scheme of liquid cooling board, first current collector includes first chamber and second chamber, the second current collector includes third chamber and fourth chamber, first chamber with first cold liquid pipeline inner chamber intercommunication, fourth chamber with second cold liquid pipeline inner chamber intercommunication, cold liquid runner includes first runner, second runner and third runner, first chamber with the third chamber passes through first runner intercommunication, the third chamber with the second chamber passes through second runner intercommunication, the second chamber with the fourth chamber passes through third runner intercommunication.

As the preferable scheme of liquid cooling board, still including set up in the installation piece that lifts by crane of diaphragm, the installation piece that lifts by crane is used for installing the piece that lifts by crane, the piece that lifts by crane has the lifting hole.

As the preferable scheme of the liquid cooling plate, the liquid cooling plate further comprises a first cold liquid pipeline joint arranged on the first collecting plate, and the first cold liquid pipeline is connected with the first collecting plate through the first cold liquid pipeline joint.

As the preferred scheme of liquid cooling board, still including set up in the supporting leg of transversal board, the supporting leg has the second that is used for holding structural adhesive and beats glues the groove, the supporting leg with battery module's tray passes through the structural adhesive and connects.

According to another aspect of the present utility model, there is provided a battery module including the above-described liquid cooling plate, further comprising:

a tray for mounting the liquid cooling plate;

a battery cell mounted on the transverse plate of the liquid cooling plate,

the first cold liquid pipeline is connected with the first collecting plate and is provided with a first cold liquid pipeline inner cavity which is communicated with the first collecting cavity.

As the preferable scheme of battery module, be provided with a plurality of electric core, part electric core is installed in the one side of diaphragm, another part electric core is installed in the opposite side of diaphragm.

The beneficial effects of the utility model are as follows:

the utility model provides a liquid cooling plate, wherein a transverse plate of the liquid cooling plate is parallel to a horizontal plane and is used for installing a battery core of a battery module, a vertical plate is perpendicular to the horizontal plane, the side surface of the battery core is attached to the vertical plate, the vertical plate is provided with a cold liquid flow channel for a cooling medium to pass through, the cold liquid flow channel is communicated with an inner cavity of a first cold liquid pipeline, and the cooling medium can be introduced into the first cold liquid pipeline and enters the cold liquid flow channel through the inner cavity of the first cold liquid pipeline, so that the side surface of the battery core can be cooled. In addition, diaphragm and riser integrated into one piece, can simplify the installation flow of liquid cooling board to promote structural strength simultaneously.

The utility model also provides a battery module, which comprises the liquid cooling plate, wherein the liquid cooling plate can provide cooling for the side surface of the battery cell through a cooling medium.

Drawings

Fig. 1 is a schematic view of a battery module according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a liquid cooling plate according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a liquid cooling plate according to an embodiment of the present utility model;

fig. 4 is an enlarged view at a in fig. 3;

FIG. 5 is a schematic side view of a liquid cooling plate according to an embodiment of the utility model;

FIG. 6 is an enlarged view at B in FIG. 5;

fig. 7 is a cross-sectional view of section C-C of fig. 5.

In the figure:

100. a tray; 200. a battery cell; 300. a lifting member; 301. lifting holes;

1. a cross plate; 11. a first glue groove;

2. a riser; 21. a cold liquid flow passage; 211. a first flow passage; 212. a second flow passage; 213. a third flow passage; 22. a third glue spraying groove;

3. a first current collecting plate; 31. a first manifold; 311. a first chamber; 312. a second chamber; 32. a first cold liquid pipe joint;

4. a second current collecting plate; 41. a second manifold; 411. a third chamber; 412. a fourth chamber; 42. a second cold liquid pipe joint;

5. lifting the mounting block;

6. support legs, 61, second gluing groove.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

In the battery module, a cooling liquid flow channel is usually arranged at the top or bottom of the battery cell for cooling the battery cell, and a cooling medium is introduced into the cooling liquid flow channel to cool the battery cell. But has a problem in that the middle portion of the battery cells cannot be cooled effectively. In view of the foregoing, the prior art provides a battery assembly that includes a plurality of cooling plates, at least one of which is located at a side of a plurality of cells and is disposed between two adjacent rows of cells to complete cooling of the side of the cells. However, after the cooling plate is introduced, the battery cells and the cooling plate need to be mounted to the support plate in order at the time of assembly, resulting in a complicated process of mounting the battery pack.

To above-mentioned problem, this embodiment provides the liquid cooling board to solve the middle part of electric core among the prior art and can not obtain effectual cooling, and introduce a plurality of cooling boards and can lead to the loaded down with trivial details problem of battery pack's installation, can be used to battery technology field.

Referring to fig. 1 to 7, the liquid cooling plate in the present embodiment includes a cross plate 1 and a vertical plate 2, the cross plate 1 being parallel to a horizontal plane for mounting the battery cells 200 of the battery module. The riser 2 is perpendicular to the horizontal plane, and diaphragm 1 and riser 2 integrated into one piece can simplify the installation flow of liquid cooling board to promote structural strength simultaneously.

With continued reference to fig. 1-7, the side of the battery cell 200 is attached to the riser 2, the riser 2 has a cold liquid flow channel 21, the cold liquid flow channel 21 is used for cooling medium to pass through, the cold liquid flow channel 21 is communicated with the inner cavity of the first cold liquid pipeline, and the cooling medium can be introduced into the first cold liquid pipeline and enter the cold liquid flow channel 21 through the inner cavity of the first cold liquid pipeline, so that the side of the battery cell can be cooled.

With continued reference to fig. 1-7, the cold liquid flow channel 21 is in communication with the inner cavity of the first cold liquid pipeline, and the liquid cooling plate further includes a first collecting plate 3, where the first collecting plate 3 is disposed at any end of the riser 2, in this embodiment, along a first direction, and the first direction is parallel to the horizontal plane. The first manifold plate 3 has a first manifold plate 31 for the passage of a cooling medium, the first manifold plate 31 being in communication with the cold fluid flow channel 21, the first manifold plate 3 being for connection with a first cold fluid conduit, the first cold fluid conduit interior being in communication with the first manifold plate 31 to enable the cooling medium to flow from the first cold fluid conduit interior through the first manifold plate 31 into the cold fluid flow channel 21 or from the cold fluid flow channel 21 into the first manifold plate 31 and back into the first cold fluid conduit interior. Therefore, the cooling medium can be introduced into the first cooling liquid pipeline and sequentially pass through the inner cavity of the first cooling liquid pipeline, the first collecting cavity 31 and the cooling liquid flow channel 21, so that the side surface of the battery cell can be cooled.

With continued reference to fig. 1-7, the liquid cooling plate further includes a second collecting plate 4 disposed on the riser 2, the second collecting plate 4 being located at an end of the riser 2 remote from the first collecting plate 3, the second collecting plate 4 having a second collecting chamber 41 for the passage of a cooling medium, the second collecting chamber 41 being in communication with the cooling fluid channel 21, the second collecting plate 4 being for connection with a second cooling fluid conduit having a second cooling fluid conduit lumen for the passage of the cooling medium, the second cooling fluid conduit lumen being in communication with the second collecting chamber 41. The cooling medium can thus also pass through the second cold liquid pipe inner chamber, the second manifold 41 and the cold liquid flow channel 21 in sequence, so that the side faces of the electric cells can be cooled. In this embodiment, the first cooling liquid pipe is used to convey the cooling medium to the cooling liquid channel 21, and the cooling medium is discharged from the second cooling liquid pipe, specifically, the cooling medium flows into the first manifold 31 from the inner cavity of the first cooling liquid pipe, and further flows into the cooling liquid channel 21. The cooling medium in the cooling fluid flow path 21 exchanges heat with the battery cell 200, and then flows into the second manifold 41, finally flows into the second cooling fluid pipe, and is discharged from the second cooling fluid pipe.

With continued reference to fig. 1-7, the riser 2 has a plurality of cold liquid flow channels 21, the plurality of cold liquid flow channels 21 being vertically parallel and spaced apart. Alternatively, the cold liquid flow passages 21 are all parallel to the first direction, so that the riser 2 can be provided with more cold liquid flow passages 21 as much as possible, so that the cooling range of the cold liquid flow passages 21 can cover the entire riser 2 as much as possible.

As shown in fig. 7, the first manifold 31 includes a first chamber 311 and a second chamber 312, the second manifold 41 includes a third chamber 411 and a fourth chamber 412, the first chamber 311 communicates with the first cold liquid pipe interior, and the fourth chamber 412 communicates with the second cold liquid pipe interior. In the present embodiment, the cold liquid flow channel 21 includes a first flow channel 211, a second flow channel 212, and a third flow channel 213, the first cavity 311 is communicated with the third cavity 411 through the first flow channel 211, the third cavity 411 is communicated with the second cavity 312 through the second flow channel 212, and the second cavity 312 is communicated with the fourth cavity 412 through the third flow channel 213. In this embodiment, the first cooling liquid pipe is higher than the second cooling liquid pipe, and the cooling medium flows in the first cavity 311 through the first flow channel 211 into the third cavity 411 as shown by the arrow in fig. 7, and exchanges heat with the side surface of the battery cell 200 while flowing through the first flow channel 211 to complete cooling. The cooling medium then flows from the third chamber 411 into the second chamber 312 via the second flow channel 212 and again into the fourth chamber 412 via the third flow channel 213.

Alternatively, the first manifold 31 and the second manifold 41 are all complete cavities, one ends of the plurality of cold liquid channels 21 are all communicated with the first manifold 31, and the other ends of the plurality of cold liquid channels 21 are all communicated with the second manifold 41, so that the cooling medium in the first manifold 31 enters the second manifold 41 through the plurality of cold liquid channels 21 at the same time.

With continued reference to fig. 1-7, after the battery cell 200 is mounted, the liquid cooling plate may constitute one small module, and a plurality of small modules are assembled to form a battery module. For installation of small modules, in this embodiment, the liquid cooling plate further includes a lifting installation block 5 provided on the cross plate 1, the lifting installation block 5 is used for installing a lifting member 300, and the lifting member 300 has a lifting hole 301. Specifically, the lifting installation block 5 is welded to the transverse plate 1, the lifting installation block 5 is provided with a threaded hole, and the lifting piece 300 is in threaded connection with the lifting installation block 5. The lifting hole 301 is used for installing a lifting tool to lift the small module composed of the liquid cooling plate and the battery cell 200.

With continued reference to fig. 1-7, the liquid cooling plate further includes a first cold liquid pipe joint 32 disposed on the first collecting plate 3, and the first cold liquid pipe is connected to the first collecting plate 3 through the first cold liquid pipe joint 32. Alternatively, the first cold liquid pipe is a nylon pipe that can be quickly connected to the first cold liquid pipe joint 32. Similarly, the liquid cooling plate further includes a second cold liquid pipe joint 42 provided to the second collecting plate 4, and the second cold liquid pipe is connected to the second collecting plate 4 through the second cold liquid pipe joint 42.

With continued reference to fig. 1-7, alternatively, the cross plate 1 has a first glue groove 11, where the first glue groove 11 is used to accommodate structural glue, and the cross plate 1 is connected with the battery cell 200 through the structural glue, so that the battery cell 200 can be stably mounted on the cross plate 1. Similarly, the riser 2 has a third glue slot 22, the third glue slot 22 is used for containing structural glue, and the riser 2 is connected with the cell 200 through the structural glue.

With continued reference to fig. 1-7, the liquid cooling plate further includes support legs 6 provided on the cross plate 1, the support legs 6 having second glue grooves 61 for receiving structural glue, the support legs 6 being connected with the tray 100 of the battery module by the structural glue. The transverse plate 1 can be prevented from being bent or damaged due to the fact that the transverse plate 1 directly collides with the tray 100 through the supporting legs 6, and in addition, structural adhesive is contained through the second adhesive beating grooves 61, so that the strength of a connecting structure between the transverse plate 1 and the tray 100 can be improved.

With continued reference to fig. 1-7, the present embodiment further provides a battery module, including the above-mentioned liquid cooling plate, and further including a tray 100, an electric core 200, and a first liquid cooling pipe, where the tray 100 is used to mount the liquid cooling plate; the battery cell 200 is arranged on the transverse plate 1 of the liquid cooling plate; the first cold liquid pipe is connected with the first current collecting plate 3, and the first cold liquid pipe is provided with a first cold liquid pipe inner cavity which is communicated with the first current collecting cavity 31, so that the first cold liquid pipe is used for conveying cooling medium to the first current collecting cavity 31 or guiding the cooling medium in the first current collecting cavity 31 into the first cold liquid pipe, and the liquid cooling plate of the battery module can provide cooling for the side face of the battery cell 200 through the cooling medium.

Optionally, the battery module further includes a second cold liquid pipe having a second cold liquid pipe inner cavity, the second cold liquid pipe inner cavity communicating with the second manifold 41.

With continued reference to fig. 1-7, the plurality of cells 200 is provided, with a portion of the cells 200 mounted on one side of the cross plate 1 and another portion of the cells 200 mounted on the other side of the cross plate 1. Further, a plurality of electric cores 200 are installed on any side of the transverse plate 1, for example, in this embodiment, 4 electric cores 200 are disposed on two sides of the transverse plate 1, and the electric cores 200 on two sides are symmetrically disposed with respect to the transverse plate 1, that is, the small module formed by the liquid cooling plate and the electric cores 200 includes 8 electric cores 200.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. The liquid cooling board for with first cold liquid pipeline connection, first cold liquid pipeline has the first cold liquid pipeline inner chamber that is used for the coolant medium to pass through, its characterized in that includes:

a cross plate (1) parallel to a horizontal plane for mounting a battery cell (200) of the battery module;

the vertical plate (2) is vertical to a horizontal plane, the transverse plate (1) and the vertical plate (2) are integrally processed and formed, the side face of the battery cell (200) is attached to the vertical plate (2), a cold liquid flow channel (21) is arranged in the vertical plate (2), the Leng Yeliu channel (21) is used for cooling medium to pass through, and the cold liquid flow channel (21) is communicated with the inner cavity of the first cold liquid pipeline;

the liquid cooling plate further comprises a lifting installation block (5) arranged on the transverse plate (1), the lifting installation block (5) is used for installing a lifting part (300), and the lifting part (300) is provided with a lifting hole (301).

2. The liquid cooling plate according to claim 1, further comprising a first collecting plate (3), wherein the first collecting plate (3) is arranged at any end of the vertical plate (2), the first collecting plate (3) is provided with a first collecting cavity (31) for a cooling medium to pass through, the first collecting cavity (31) is communicated with the Leng Yeliu channels (21), the first collecting plate (3) is used for being connected with a first cold liquid pipeline, and an inner cavity of the first cold liquid pipeline is communicated with the first collecting cavity (31).

3. The liquid cooling plate according to claim 2, further comprising a second collecting plate (4) provided to the riser (2), the second collecting plate (4) being located at an end of the riser (2) remote from the first collecting plate (3), the second collecting plate (4) having a second collecting chamber (41) for passing a cooling medium therethrough, the second collecting chamber (41) being in communication with the Leng Yeliu channel (21), the second collecting plate (4) being for connection with a second cold liquid pipe having a second cold liquid pipe inner chamber for passing a cooling medium therethrough, the second cold liquid pipe inner chamber being in communication with the second collecting chamber (41).

4. A liquid cooling plate according to claim 3, wherein the riser (2) has a plurality of cold liquid channels (21), and a plurality of channels Leng Yeliu (21) are arranged in parallel and at intervals in the vertical direction.

5. The liquid cooling plate according to claim 4, wherein the first manifold (31) includes a first chamber (311) and a second chamber (312), the second manifold (41) includes a third chamber (411) and a fourth chamber (412), the first chamber (311) communicates with the first cold liquid pipe inner chamber, the fourth chamber (412) communicates with the second cold liquid pipe inner chamber, the Leng Yeliu channel (21) includes a first flow channel (211), a second flow channel (212), and a third flow channel (213), the first chamber (311) communicates with the third chamber (411) through the first flow channel (211), the third chamber (411) communicates with the second chamber (312) through the second flow channel (212), and the second chamber (312) communicates with the fourth chamber (412) through the third flow channel (213).

6. The liquid cooling plate according to any one of claims 2-5, further comprising a first cold liquid pipe joint (32) provided to the first collecting plate (3), the first cold liquid pipe being connected to the first collecting plate (3) through the first cold liquid pipe joint (32).

7. The liquid cooling plate according to any one of claims 1 to 5, further comprising a support leg (6) provided to the cross plate (1), the support leg (6) having a second glue-beating groove (61) for receiving structural glue, the support leg (6) being connected with a tray (100) of the battery module by the structural glue.

8. Battery module, characterized in that it comprises a liquid cooling plate according to any one of claims 1-7, said liquid cooling plate further comprising a first current collecting plate (3), said first current collecting plate (3) being arranged at either end of said riser (2), said first current collecting plate (3) having a first current collecting cavity (31) for the passage of a cooling medium, said first current collecting cavity (31) being in communication with said Leng Yeliu channels (21), said first current collecting plate (3) being adapted to be connected with a first cold liquid pipe, said first cold liquid pipe inner cavity being in communication with said first current collecting cavity (31), said battery module further comprising:

a tray (100) for mounting the liquid cooling plate;

a battery cell (200) mounted on the cross plate (1) of the liquid cooling plate,

and the first cold liquid pipeline is connected with the first collecting plate (3), and is provided with a first cold liquid pipeline inner cavity which is communicated with the first collecting cavity (31).

9. The battery module according to claim 8, wherein the battery cells (200) are provided in plurality, a part of the battery cells (200) are mounted on one side of the cross plate (1), and another part of the battery cells (200) are mounted on the other side of the cross plate (1).