CN205944148U - Battery module and including car of this battery module - Google Patents

Abstract

The utility model discloses a battery module and including car of this battery module, this battery module includes: a plurality of battery module units, and end plate, two end plates will a plurality of battery module unit centre grippings are among them, every battery module unit includes: cylinder battery, and casing, the center of casing has cylindrical through -hole, cylinder battery installs in this cylindrical through -hole to inner wall laminating with this cylindrical through -hole, the casing is square column shape, the casing of every battery module unit and rather than the casing laminating of adjacent battery module unit. The utility model aims at providing a battery module and including car of this battery module, it is through providing the square column shape that has regular shape casing for cylinder battery to adopt water cooling mode to cool off, and reduced the volume of battery module.

Description

A battery module and a car including the battery module

technical field

The utility model relates to the field of automobiles, in particular to a battery module and an automobile including the battery module.

Background technique

In a battery module using a cylindrical battery, the fixing of the battery is realized by a splint located at the positive and negative ends of the battery and having round holes on the surface for holding the cylindrical battery. In order to realize the heat dissipation of the battery, air cooling is usually adopted, and there is a gap between two adjacent cylindrical batteries, and the gas can flow in the gap, thereby realizing the thermal management of the battery module. However, the gap causes the overall size of the battery module to be too large, and the thermal management efficiency is low.

Utility model content

In view of this, the purpose of the present utility model is to provide a battery module and a car including the battery module, which provide the cylindrical battery with a square cylindrical shell with a regular shape, thereby adopting a water cooling method for cooling, and The volume of the battery module is reduced.

The embodiment of the utility model provides a battery module, including:

multiple battery modules, and

an end plate, the two end plates clamp the plurality of battery module units therebetween;

Each battery module unit includes:

cylindrical battery, and

A casing, the center of the casing has a cylindrical through hole, the cylindrical battery is installed in the cylindrical through hole, and fits with the inner wall of the cylindrical through hole, the casing is a square column , the housing of each battery module unit is attached to the housing of its adjacent battery module unit.

Preferably, the housing is a square cylinder, which includes:

a first convex groove provided on one side of the housing; and

The second groove, the second groove is arranged on the other side of the housing opposite to the one side, the shape and position of the first convex groove correspond to the second groove, and the adjacent Two battery module units are connected together through the correspondingly connected first protruding grooves and second grooves to form a battery module row.

Preferably, the end plate comprises:

a first end plate, the surface of the first end plate facing the battery module unit has a second groove corresponding to the first convex groove; and

The second end plate, the surface of the side of the second end plate facing the battery module unit has a first convex groove matched with the second groove.

Preferably, further comprising:

A heat conduction plate, the heat conduction plate is located between two adjacent battery module rows, and is attached to the shell of the battery module unit in the battery module row, and one end of the heat conduction plate protrudes to the other than the end plate.

Preferably, the end plate has a through hole, and one end of the heat conducting plate protrudes from the through hole to the outside of the end plate.

Preferably, further comprising:

A water chamber, the water chamber is attached to the surface of the end plate facing away from the battery module unit, and one end of the heat conducting plate is attached to the water chamber to dissipate the heat of the battery module unit passed to the water chamber.

Preferably, the heat conducting plate further comprises:

A water channel, the water channel communicates with the water chamber.

Preferably, the housing further includes:

A mounting hole, the mounting hole is located outside the cylindrical through hole.

Yet another embodiment of the present invention also provides a car, which includes the above-mentioned battery module.

Description of drawings

The following drawings only schematically illustrate and explain the utility model, and do not limit the scope of the utility model.

FIG. 1 is an exploded view of the battery module of the present invention.

FIG. 2 is an assembly diagram of the battery module of the present invention.

Fig. 3 is an exploded view of the battery module row in the present invention.

Fig. 4 is a top view of the battery module of the present invention.

Fig. 5 is a schematic exploded view of two adjacent battery module rows in the present invention.

Fig. 6 is a schematic structural view of the end plate in the present invention.

Label description:

1 battery module

10 battery module unit

11 cylindrical battery

12 housing

12a, 12b side

13 Cylindrical through holes

14 First convex groove

15 Second groove

16 mounting holes

20 end plate

21 first end plate

22 Second end plate

23 through holes

30 battery module row

40 thermal plate

41 waterway

50 water chamber

detailed description

In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation of the utility model is now described with reference to the accompanying drawings, and the same symbols in each figure represent the same parts.

In this article, "schematic" means "serving as an example, example or illustration", and any illustration or implementation described as "schematic" in this article should not be interpreted as a more preferred or more advantageous Technical solutions.

In order to make the drawings concise, the figures in each figure only schematically show the relevant parts of the utility model, and do not represent its actual structure as a product. In addition, to make the drawings concise and easy to understand, in some drawings, only one of the components having the same structure or function is schematically shown, or only one of them is marked.

In order to solve the problem that the overall size of the battery module is too large and the thermal management efficiency is low in the prior art, the purpose of this utility model is to provide a battery module and a car including the battery module, which provides a cylindrical battery It has a regular-shaped square cylindrical casing, so that it is cooled by water cooling, and the volume of the battery module is reduced.

FIG. 1 is an exploded view of the battery module of the present invention. FIG. 2 is an assembly diagram of the battery module of the present invention. As shown in Figure 1 and Figure 2, this embodiment provides a battery module 1, including:

a plurality of battery module units 10, and

The end plates 20 , the two end plates 20 hold a plurality of battery module units 10 therebetween.

Wherein, each battery module unit 10 includes:

cylindrical battery 11, and

Housing 12, the center of housing 12 has cylindrical through-hole 13, and cylindrical battery 11 is installed in this cylindrical through-hole 13, and the extending direction of cylindrical through-hole 13 is consistent with the length direction of cylindrical battery 11, and cylindrical The positive and negative electrodes at both ends of the rectangular battery 11 are exposed from the two open ends of the cylindrical through hole 13 . The cylindrical battery 11 is attached to the inner wall of the cylindrical through hole 13, and the casing 12 is a square column, and the casing 12 of each battery module unit 10 is attached to the casing 12 of the adjacent battery module unit 10. combine.

Due to the cylindrical shape of the cylindrical battery 11 , even if two adjacent batteries are in contact with each other, a large contact area and a stable fixing structure cannot be obtained, so higher requirements are put forward for heat dissipation and fixing. In this embodiment, there is provided a square column housing 12 containing a cylindrical battery 11, which has a regular shape. Since two adjacent battery module units 10 have housings 12 with the same shape, The casings 12 of two adjacent battery module units 10 can achieve sufficient contact with a relatively large area.

In addition, since the cylindrical battery 11 is attached to the inner wall of the cylindrical through hole 13, the metal casing 12 can fully absorb the heat of the cylindrical battery 11, so the battery module 1 in this embodiment only needs to be the casing 12 Thermal management of the cylindrical battery 11 can be achieved by providing a heat dissipation structure. Since the shell 12 has a relatively regular shape, the heat dissipation structure can achieve sufficient contact with the shell 12, thereby improving the thermal management efficiency of the battery module.

Preferably, as shown in Figure 3 and Figure 4, the housing 12 is a square cylinder, which includes:

a first protruding groove 14, the first protruding groove 14 is disposed on one of the side surfaces 12a of the housing 12; and

The second groove 15, the second groove 15 is arranged on the other side 12b opposite to the side 12a of the housing 12, the shape and position of the first convex groove 14 correspond to the shape of the second groove 15, then by The corresponding first convex groove 14 is connected with the second groove 15 , and two adjacent battery module units 10 can be connected together to form a battery module row 30 as shown in FIG. 3 . Wherein, the side surfaces 12 a and 12 b are a set of opposite sides extending along the length direction of the cylindrical battery 11 . One or more sets of first protruding grooves 14 and second grooves 15 can be set on the side surfaces 12a and 12b. When the corresponding first protruding grooves 14 and second grooves 15 are connected together, two adjacent battery modules The corresponding side surfaces 12a and 12b of the casing 12 of the group unit 10 are fitted together, so that the battery module units 10 can be connected together without using common external fixing structures such as straps.

Specifically, the first convex groove 14 and the second groove 15 can be in the form of a dovetail groove, then when the first convex groove 14 and the second groove 15 are connected together, the shells of the two battery module units 10 can be Body 12 is firmly connected.

The battery module 1 may only include one battery module row 30 , or include multiple battery module rows 30 arranged side by side as shown in FIG. 2 .

Further, as shown in Figures 1 and 4, the end plate 20 includes:

The first end plate 21, the surface of the first end plate 21 facing the battery module unit 10 has a second groove 15 corresponding to the first convex groove 14 of the battery module unit 10; and

The second end plate 22 , the surface of the second end plate 22 facing the battery module unit 10 has a first convex groove 14 matching with the second groove 15 of the battery module unit 10 .

By cooperating with the first convex groove 14 or the second groove 15 of the battery module unit 10, the second groove 15 and the first convex groove 14 provided on the surface of the first end plate 21 and the second end plate 22, The end plate 20 can be closely connected with one or more battery module rows 30 clamped between the first end plate 21 and the second end plate 22 without using common external fixing structures such as straps.

As shown in Figure 1 and Figure 5, the battery module 1 of this embodiment further includes:

The heat conduction plate 40, the heat conduction plate 40 is located between two adjacent battery module rows 30, and fits with the housing 12 of the battery module unit 10 in the battery module row 30, and one end of the heat conduction plate 40 extends to other than end plate 20.

The heat conduction plate 40 absorbs the heat from the cylindrical battery 11 by being attached to the housing 12 of the battery module unit 10 in the battery module row 30 on both sides of the heat conduction plate 40 , and passes the The heat is taken out to a heat dissipation unit disposed outside the battery module unit 10 .

Specifically, as shown in FIG. 6 , the end plate 20 has a through hole 23 , and one end of the heat conducting plate 40 protrudes from the through hole 23 to the outside of the end plate 20 . The through hole 23 can be disposed on the first end plate 21 or the second end plate 22 .

As shown in Figure 1, the battery module 1 of this embodiment further includes:

The water chamber 50 , the water chamber 50 is attached to the surface of the end plate 20 facing away from the battery module unit 10 , and one end of the heat conduction plate 40 is attached to the water chamber 50 to transfer the heat of the battery module unit 10 to the water chamber 50 .

Preferably, as shown in FIG. 5, the heat conducting plate 40 further includes:

The water channel 41 communicates with the water chamber 50 so that the cooling water can flow through the battery module unit 10 to directly take away the heat of the cylindrical battery 11 in the battery module unit 10 .

Preferably, as shown in Figures 1 and 4, the housing 12 further includes:

The installation hole 16 is located outside or around the cylindrical through hole 13 and is used for fixing or installing wire harnesses, tab connectors and the like.

In another embodiment, the battery module 1 in the above embodiments can be applied in automobiles. Of course, how to install the battery module 1 in the car is not the key point of the present invention, and those skilled in the art can implement the installation of the battery module 1 in the car in any way, which will not be repeated here.

In this article, "first", "second", etc. are only used to distinguish each other, not to indicate the degree of importance and order, or the prerequisite for mutual existence.

Herein, "one" does not mean limiting the number of relevant parts of the present invention to "only one", and "one" does not mean excluding the situation that the number of relevant parts of the present invention is "more than one".

Unless otherwise stated, a numerical range herein includes not only the entire range within its two endpoints, but also several subranges subsumed therein.

The series of detailed descriptions listed above are only specific descriptions of the feasible implementation modes of the present utility model, and are not intended to limit the protection scope of the present utility model. Embodiments or changes, such as combination, division or repetition of features, should be included in the protection scope of the present utility model.

Claims (9)

1. a kind of battery modules (1) are it is characterised in that include：

Multiple battery modules units (10), and

End plate (20), the plurality of battery modules unit (10) is clamped betwixt by two end plates (20)；

Each battery modules unit (10) includes：

Cylindrical battery (11), and

Housing (12), the center of described housing (12) has cylindrical hole (13), and described cylindrical battery (11) is installed in this In cylindrical hole (13), and fit with the inwall of this cylindrical hole (13), described housing (12) is square column type, each electricity Housing (12) laminating of the housing (12) of pond module group unit (10) and the battery modules unit (10) being adjacent.

2. battery modules (1) as claimed in claim 1 it is characterised in that described housing (12) be square body, it includes：

First tongue (14), described first tongue (14) is arranged on one of side (12a) of described housing (12)；With

Second groove (15), described second groove (15) is arranged on the relative with one side (12a) of described housing (12) Another side (12b) on, the shape of described first tongue (14) and position corresponding with the second groove (15), adjacent two Battery modules unit (10) is linked together by described first tongue (14) that connects of correspondence and the second groove (15), with shape Become battery modules row (30).

3. battery modules (1) as claimed in claim 2 are it is characterised in that described end plate (20) includes：

First end plate (21), the side surface towards described battery modules unit (10) of described first end plate (21) has and institute State corresponding second groove of the first tongue (14) (15)；With

Second end plate (22), the side surface towards described battery modules unit (10) of described second end plate (22) has and institute State the first tongue (14) that the second groove (15) coordinates.

4. battery modules (1) as claimed in claim 2 are it is characterised in that further include：

Heat-conducting plate (40), described heat-conducting plate (40) is located between adjacent two battery modules row (30), and with described battery Housing (12) laminating of the battery modules unit (10) in module row (30), one end of described heat-conducting plate (40) extend out to described end Beyond plate (20).

5. battery modules (1) as claimed in claim 4 are it is characterised in that described end plate (20) has a through hole (23), described lead One end of hot plate (40) extend out to beyond described end plate (20) from described through hole (23).

6. battery modules (1) as claimed in claim 5 are it is characterised in that further include：

Hydroecium (50), the side table deviating from described battery modules unit (10) of described hydroecium (50) the described end plate of laminating (20) Face, fitted with described hydroecium (50) in one end of described heat-conducting plate (40), by the heat transfer of described battery modules unit (10) To described hydroecium (50).

7. battery modules (1) as claimed in claim 6 are it is characterised in that described heat-conducting plate (40) further includes：

Water channel (41), described water channel (41) is connected with described hydroecium (50).

8. battery modules (1) as claimed in claim 2 are it is characterised in that described housing (12) further includes：

Installing hole (16), described installing hole (16) is located at the outside of described cylindrical hole (13).

9. a kind of automobile is it is characterised in that described automobile includes the battery as described in any claim in claim 1 to 8 Module (1).