CN217239609U

CN217239609U - Novel structure battery module

Info

Publication number: CN217239609U
Application number: CN202220052353.6U
Authority: CN
Inventors: 唐海东
Original assignee: Evergrande New Energy Technology Shenzhen Co Ltd
Current assignee: Evergrande New Energy Technology Shenzhen Co Ltd
Priority date: 2022-01-10
Filing date: 2022-01-10
Publication date: 2022-08-19
Anticipated expiration: 2032-01-10

Abstract

The utility model relates to a battery field discloses a novel structure battery module, and this novel structure battery module includes: the battery module comprises a battery module end plate, a locking member, a battery module and a thermal management system; a plurality of open grooves which are arranged along the horizontal direction are formed on the thermal management system, and the battery modules are tightly arranged in the open grooves; the battery module end plate is arranged at the end part of the thermal management system, and the locking piece is used for locking the battery module end plate, the battery module and the thermal management system to form an integral structure. This novel structure battery module thermal management system of integrating in battery module need not set up solitary cold drawing region, increases the space utilization of battery package.

Description

Novel structure battery module

Technical Field

The utility model relates to a battery field specifically relates to a novel structure battery module.

Background

The existing battery module does not have the capability of self direct heat management, and the function is realized by adding an independent large cold plate.

In the existing technical scheme, a space needs to be separately arranged for the cold plate in the battery pack with short space, so that the available space of the battery pack is reduced, and the energy density of the battery pack is indirectly influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the problem that battery package space utilization that prior art exists is low, providing a novel structure battery module, this novel structure battery module thermal management system that integrates in battery module need not set up solitary cold drawing region, increases the space utilization of battery package.

In order to achieve the above object, the utility model provides a novel structure battery module, this novel structure battery module includes: the battery module comprises a battery module end plate, a locking member, a battery module and a thermal management system; a plurality of open grooves which are arranged along the horizontal direction are formed on the thermal management system, and the battery modules are tightly arranged in the open grooves; the battery module end plate set up in thermal management system's tip, the retaining member is used for with battery module end plate, battery module and thermal management system locking form overall structure.

Preferably, the locking member is a cable tie that surrounds the battery module end plates and the thermal management system to bundle the battery module end plates, the battery modules, and the thermal management system into a unitary structure.

Preferably, at least 2 bands are arranged in the vertical direction.

Preferably, the thermal management system comprises a plurality of U-shaped cold liquid plates connected in series and arranged in a horizontal direction, a cavity for circulating a thermal management medium is formed inside each U-shaped cold liquid plate, and the battery modules are arranged between two adjacent U-shaped cold liquid plates and in grooves formed in the U-shaped cold liquid plates.

Preferably, two adjacent U type cold liquid boards are communicated through a cold liquid pipe, and the U type cold liquid boards at two ends are provided with cold liquid inlets and outlets matched with the cold liquid pipe.

Preferably, the ends of two adjacent cold liquid pipes close to each other are respectively communicated with two side walls of the same U-shaped cold liquid plate.

Preferably, the plurality of cold liquid pipes are distributed along the arrangement direction of the U-shaped cold liquid plates in a staggered mode from left to right.

Preferably, an insulating plate is arranged between the battery module end plate and the thermal management system.

Preferably, a plurality of collectors corresponding to the battery modules one to one are integrated on the battery module end plate, and the collectors are connected with the corresponding poles of the battery modules through leads.

Preferably, the two ends of one side, back to the thermal management system, of the battery module end plate are provided with round-angle grooves matched with the ties.

Through above-mentioned technical scheme, integrated thermal management system in battery module need not set up solitary cold drawing region, can realize the direct management to battery temperature, increases the space utilization of battery package.

Drawings

Fig. 1 is a schematic view of the overall structure of a preferred embodiment of a novel-structure battery module;

fig. 2 is a schematic view illustrating an exploded structure of a preferred embodiment of a battery module having a novel structure;

FIG. 3 is a schematic diagram of the overall structure of a preferred embodiment of a thermal management system.

Description of the reference numerals

1-U-shaped cold liquid plate; 2-a cold liquid pipe; 3, binding the belt; 4-a battery module; 5-battery module end plates; 6, insulating plates; 7-fillet groove.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

In the present invention, unless otherwise specified, directional terms such as "upper, lower, top, bottom, far, near, side" and the like included in a term merely represent the orientation of the term in a conventional use state or are colloquially understood by those skilled in the art, and should not be construed as limiting the term.

Referring to the battery module of the novel structure shown in fig. 1, the battery module of the novel structure includes: the battery module comprises a battery module end plate 5, a locking member, a battery module 4 and a thermal management system; a plurality of open grooves arranged along the horizontal direction are formed on the thermal management system, and the battery modules 4 are tightly arranged in the open grooves; battery module end plate 5 set up in thermal management system's tip, the retaining member is used for with battery module end plate 5, battery module 4 and thermal management system locking form overall structure.

Through the implementation of the technical scheme, the thermal management system is integrated in the battery module, an independent cold plate area is not required to be arranged, and the space utilization rate of the battery pack is increased.

In this embodiment, in order to further provide a locking member, the locking member is a band 3, and the band 3 binds the battery module end plates 5, the battery modules 4, and the thermal management system into a unitary structure around the battery module end plates 5 and the thermal management system. Of course, other types of retaining members, such as a tie clip, may be used.

In this embodiment, in order to improve the stability of the entire locking, at least 2 bands 3 are arranged in a vertical direction. As shown in fig. 1, 2 bands 3 are arranged in a vertical direction.

In this embodiment, the thermal management system includes a plurality of U-shaped liquid cooling plates 1 connected in series and arranged in a horizontal direction, a cavity for circulating a thermal management medium is formed inside each U-shaped liquid cooling plate 1, and the battery module 4 is disposed between two adjacent U-shaped liquid cooling plates 1 and in a groove formed in each U-shaped liquid cooling plate 1. Through such an arrangement, thermal management efficiency is improved. As shown in fig. 1, battery module 4 is fastened to the thermal management system ring, and tightly combined together, and then fixed to a module by end plates and bands 3, as shown in fig. 3, the thermal management medium flows in the direction of the arrows, which may be opposite, and takes away heat generated by battery module 4, or heats battery module 4 at low temperature.

As in one embodiment, the cavity formed in the U-shaped liquid cooling plate 1 for circulating the heat management medium is a U-shaped structure, and the cavity comprises side portions located at two sides of the U-shaped liquid cooling plate 1 and a bottom portion located at the bottom side of the U-shaped liquid cooling plate 1, and the side portions are communicated with the bottom portion, so that the heat management medium can effectively transfer heat at the side surfaces and the bottom surface of the U-shaped liquid cooling plate 1.

Specifically speaking, in the aspect of thermal management efficiency, current technical scheme, the battery cell bottom is put and is carried out the heat management on the cold drawing, and the effective thermal management area of battery cell is battery cell bottom scope promptly, and battery cell bottom area is little, and in this technical scheme, the effective thermal management area of battery cell is: the bottom surfaces are added to the two side surfaces of the battery cell, or the two side surfaces of the battery cell, the heat management area of a single battery cell is obviously increased, and the heat management efficiency is obviously improved.

In this embodiment, in order to further provide a connection mode between two adjacent U-shaped liquid cooling plates 1, the two adjacent U-shaped liquid cooling plates 1 are communicated with each other through a liquid cooling pipe 2, and the U-shaped liquid cooling plates 1 located at both ends are provided with a liquid cooling inlet and outlet used in cooperation with the liquid cooling pipe 2. As shown in fig. 3, the cold liquid pipe 2 is U-shaped and extends upward toward both sides, which does not affect the installation of the cell.

In this embodiment, in order to further provide an arrangement manner of the cold liquid pipes 2 to improve the heat exchange efficiency, the adjacent ends of two adjacent cold liquid pipes 2 are respectively communicated with two side walls of the same U-shaped cold liquid plate 1. For example: 1. two adjacent cold liquid pipes 2 are arranged on the same side and are respectively communicated with two side walls of the U-shaped cold liquid plate 1; 2. two adjacent cold liquid pipes 2 set up in homonymy or offside, and communicate respectively in two lateral walls of U type cold liquid board 1.

Further, as shown in fig. 3, the plurality of cold liquid pipes 2 are symmetrically distributed in a left-right staggered manner along the arrangement direction of the U-shaped cold liquid plates 1. Two adjacent cold liquid pipes 2 are located and connect respectively on the same U type cold liquid board 1 on the lateral wall of difference for the heat management medium can circulate in whole U type cold liquid board 1, in order to increase thermal management efficiency.

In this embodiment, an insulating plate 6 is provided between the battery module end plate 5 and the thermal management system. The setting through insulation board 6 provides the insulating effect between battery module end plate 5 and the electricity core.

In this embodiment, as shown in fig. 1 and 2, in order to further improve the thermal management efficiency, a plurality of collectors corresponding to the battery modules 4 one to one are integrated on the battery module end plate 5, and the collectors are connected to the corresponding poles of the battery modules 4 through leads. Through all collectors of battery package, place module end plate in whole, need not to occupy other spaces in the battery package, through such setting, space utilization is high, can set up according to the size of module and the demand that the battery was gathered, the collector through lead wire and corresponding battery module 4's utmost point post is connected and is used for gathering the temperature condition that corresponds battery module 4, and external control system manages thermally through the thermal management system according to this temperature condition.

In this embodiment, in order to further improve the binding stability of the binding band 3, the two ends of the battery module end plate 5 on the side facing away from the thermal management system are provided with rounded slots 7 which are matched with the binding band 3.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features.

In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.

Claims

1. The utility model provides a novel structure battery module, its characterized in that, novel structure battery module includes: the battery module comprises battery module end plates (5), locking pieces, battery modules (4) and a thermal management system;

a plurality of open grooves which are arranged along the horizontal direction are formed on the thermal management system, and the battery modules (4) are tightly arranged in the open grooves;

the battery module end plate (5) is arranged at the end part of the thermal management system;

the locking piece is used for locking the battery module end plate (5), the battery module (4) and the thermal management system to form an integral structure.

2. The novel structural battery module of claim 1, wherein the retaining member is a tie (3), and the tie (3) ties the battery module end plate (5), battery module (4), and thermal management system around the battery module end plate (5) and thermal management system to form a unitary structure.

3. The novel structural battery module according to claim 2, wherein the bands (3) are arranged in the vertical direction in at least 2 numbers.

4. The battery module with the novel structure as claimed in claim 1, wherein the thermal management system comprises a plurality of U-shaped liquid cooling plates (1) which are arranged in a horizontal direction in a row and connected in series, cavities for circulating thermal management media are formed in the U-shaped liquid cooling plates (1), and the battery modules (4) are arranged between two adjacent U-shaped liquid cooling plates (1) and in grooves formed in the U-shaped liquid cooling plates (1).

5. The battery module with the novel structure as claimed in claim 4, wherein two adjacent U-shaped cold liquid plates (1) are communicated with each other through a cold liquid pipe (2), and cold liquid inlets and outlets matched with the cold liquid pipe (2) are formed in the U-shaped cold liquid plates (1) at two ends.

6. The novel structural battery module as claimed in claim 5, wherein the ends of two adjacent cold liquid pipes (2) are respectively communicated with two side walls of the same U-shaped cold liquid plate (1).

7. The battery module with the novel structure as claimed in claim 5 or 6, wherein the plurality of cold liquid pipes (2) are distributed along the arrangement direction of the U-shaped cold liquid plates (1) in a staggered manner.

8. The novel structural battery module according to claim 1, wherein an insulating plate (6) is arranged between the battery module end plate (5) and a thermal management system.

9. The battery module with the novel structure as claimed in claim 1, wherein a plurality of collectors corresponding to the battery modules (4) one by one are integrated on the battery module end plate (5), and the collectors are connected with the corresponding poles of the battery modules (4) through leads.

10. The novel structural battery module according to claim 2, characterized in that the two ends of the side of the battery module end plate (5) facing away from the thermal management system are provided with rounded grooves (7) which are matched with the bands (3).