CN210245575U

CN210245575U - Battery package integrated configuration

Info

Publication number: CN210245575U
Application number: CN201921117069.7U
Authority: CN
Inventors: Li Zhan; 占莉; Jiyang Zhao; 赵继阳; Jianhao He; 何剑浩; Yongdong Cui; 崔永东; Wei Li; 李伟
Original assignee: Weirui Electric Automobile Technology Ningbo Co Ltd
Current assignee: Weirui Electric Automobile Technology Ningbo Co Ltd
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-04-03
Anticipated expiration: 2029-07-17

Abstract

The utility model relates to a power battery heat dissipation technical field, concretely relates to battery package integrated configuration, including electric core module, cooling tube and battery case, electric core module holds in the battery case, the battery case includes the curb plate, the cooling tube sets up electric core module with between the curb plate, the cooling tube inlays to be established in the curb plate, the cooling tube with electric core module contact. The utility model discloses reduce the ascending occupation space of battery package direction of height, cooling tube inlays to establish integrated inside the battery package, has simplified the whole cooling structure of battery package, has improved heat exchange efficiency.

Description

Battery package integrated configuration

Technical Field

The utility model relates to a power battery heat dissipation technical field especially relates to a battery package integrated configuration.

Background

Currently, a power battery (currently, mainly a lithium ion battery) is generally adopted as a power source in a new energy automobile (e.g., an electric automobile or a hybrid automobile). However, due to the limitations of the battery itself, the operating temperature of the battery has a direct impact on battery performance, life, and safety. When the temperature of the battery is too low, charging is not allowed or power-limited discharging is required, and when the temperature is too high, not only the service life of the battery is affected, but also safety problems are likely to occur.

Therefore, need cool off the battery package, in prior art, a cooling method of battery package is the water-cooling, in the cooling structure of water-cooled battery package, as shown in fig. 1, cooling tube (not shown in the figure) sets up on the cold water board 5 that is used for holding battery box (not shown in the figure) below of electric core module 1, make the cooling tube integration outside the battery, the structure is loaded down with trivial details, it is complicated, and this kind of water-cooled cooling structure occupies the high space of battery package, it is big to make the installation occupation space of battery package on the car, it is inconvenient to install, furthermore, this kind of cooling structure of water-cooled battery package is based on the four corners screw locking mode of bottom plate and battery box, make the laminating degree of battery box and cooling tube low, and heat exchange efficiency is low.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is that the occupation space of the direction of height of battery package is big among the prior art, and the cooling structure of battery package is complicated and the problem that heat exchange efficiency is low.

In order to solve the technical problem, the utility model discloses a battery pack integrated structure, which comprises a battery cell module, a cooling pipe and a battery shell, wherein the battery cell module is accommodated in the battery shell, the battery shell comprises a side plate,

the cooling tube sets up electric core module with between the curb plate, the cooling tube inlays to be established in the curb plate, the cooling tube with electric core module contact.

Further, the battery case further comprises a bottom plate, the bottom surface of the battery cell module is in contact with the bottom plate, the side surface of the battery cell module is opposite to the side plate of the battery case, and the cooling pipe is arranged between the side surface of the battery cell module and the side plate of the battery case.

Preferably, a heat insulation plate is arranged below the bottom plate of the battery case.

Preferably, a heat-conducting adhesive layer is arranged on the side face of the battery cell module, and the side face of the battery cell module is in contact with the cooling pipe through the heat-conducting adhesive layer.

Furthermore, an embedding groove is formed in the side plate, and the shape of the embedding groove is matched with that of the cooling pipe.

Preferably, the side panels are extruded.

Preferably, the cooling pipe is of a U-shaped structure.

Preferably, one side of the cooling pipe contacting with the battery cell module is a plane.

Preferably, the cross section of the cooling pipe is rectangular or waist-shaped or semicircular.

Further, the cooling pipe comprises a main liquid inlet and a main liquid outlet, and the main liquid inlet and the main liquid outlet are both arranged on the outer side of the side plate.

Adopt above-mentioned technical scheme, battery package integrated configuration arrange the cooling tube in the side of electric core module, reduced the whole height of battery package for the battery package when installing to the car, installation occupation space reduces, simple to operate, and is further, the utility model discloses inlay the cooling tube and establish on the curb plate of battery case to realize the heat exchange with electric core module contact, make it after the equipment, assemble the formation battery package jointly with electric core module, this kind of integrated arrangement has simplified the whole cooling structure of battery package, and the cooling tube is by its locking force that sets up the back on the curb plate based on the curb plate, makes the cooling tube increase with the area of contact of electric core module, has improved heat exchange efficiency.

Drawings

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

Fig. 1 is a schematic structural diagram of a battery pack integrated structure in the prior art;

fig. 2 is a schematic structural diagram of a battery pack integrated structure according to the present invention;

fig. 3 is a schematic diagram illustrating a battery pack integrated structure according to the present invention;

in the figure, 1-battery cell module, 2-battery shell, 21-bottom plate, 22-side plate, 3-embedded groove, 4-cooling pipe and 5-cold water plate.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below 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 efforts shall belong to the protection scope of the present invention.

Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with at least one implementation of the invention is included. In the description of the present invention, it is to be understood that the terms "upper", "top", "bottom", and the like refer to orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein.

In order to solve the above technical problem, the present invention discloses a battery pack integrated structure, as shown in fig. 2 and fig. 3, the battery pack integrated structure includes a battery cell module 1, a cooling tube 4 and a battery case 2, wherein the battery cell module 1 is accommodated in the battery case 2;

the battery case 2 is of a cover-free case structure and comprises a bottom plate 21 and side plates 22, the cooling pipe 4 is arranged between the battery core module 1 and the side plates 22 of the battery case 2, and the cooling pipe 4 is embedded in the side plates 22.

As an implementable scheme, the battery cell module 1 is formed by connecting a plurality of battery cells of rectangular structures in series or in parallel, the battery cell module 1 includes a bottom surface and a side surface, the bottom surface of the battery cell module 1 contacts with the bottom plate 21 of the battery case 2, the side surface of the battery cell module 1 is arranged opposite to the side plate 22 of the battery case 2, the cooling pipe 4 is embedded in the side plate 22, and the cooling pipe 4 contacts with the battery cell module 1.

The cooling pipe 5 may be provided on at least one side plate 22 of the prime battery case 2.

It should be noted that the battery cell module 1 may also be formed by connecting a plurality of cylindrical battery cells in series or in parallel, and a bottom surface and a side surface may also be formed after connecting a plurality of cylindrical battery cells in series or in parallel.

It can be understood that, the car is sensitive to the holistic high ratio of battery package, if the holistic high too high of battery package, can occupy great space when installing it on the car, moreover because the installation space of the battery package of reserving in the car is limited, the high too high of battery package, its installation operation is more troublesome, the utility model discloses in, will cooling tube 4 sets up the side of electric core module 1 with between the curb plate 22 for cooling tube 4 arranges the side at electric core module 1, thereby has liberated the space of arranging of cooling tube 4 of electric core module 1 bottom surface, has reduced the overall height of battery package, thereby makes the in-process simple installation of battery package to the car, and has reduced the occupation space of battery package on the car.

The side plate 22 of the battery shell 2 is provided with an embedded groove 3, and the shape of the embedded groove 3 is matched with that of the cooling pipe 4. Preferably, one side of the cooling pipe 4 contacting the battery cell module 1 is a plane, that is, the other side of the cooling pipe 4 opposite to the side embedded in the embedding groove 3 is a plane.

As an implementable solution, as shown in fig. 2 and 3, the embedding groove 3 is of a U-shaped structure, the cooling pipe 4 is also of a U-shaped structure, and the cross section of the cooling pipe 4 is of a waist-shaped structure.

It is understood that the shape of the cooling tube 4 may also be an S-shaped structure, and the cross section of the cooling tube 4 may also be a rectangular structure or a semicircular structure, which may be set according to specific requirements, and is not limited herein. Further, the cross sections of the cooling pipes 4 may be the same or different, for example, the cross section of the cooling pipe 4 close to the liquid inlet is a rectangular structure, and the cross section close to the liquid outlet is a waist-shaped structure, which may be set according to the requirement, and is not limited herein.

As shown in fig. 1, after the bottom plate 2 and the battery box are locked together by screws at four corners, the bottom plate 2 protrudes from the middle position due to the locking force at the four corners, and the four corners are sunken, so that the contact area between the cooling pipe 4 and the battery is small, and the heat exchange efficiency is low; and in this application, will cooling tube 4 sets up electric core module 1 with between the curb plate 22, and will cooling tube 4 one side inlays to be established in the curb plate 22, the opposite side is with the plane contact electric core module 1, after the cooling tube 4 assembly moulding, under the effect of the locking force of curb plate 22, can be so that cooling tube 4 and electric core module 1's laminating area increase, improved the heat exchange rate.

Preferably, a heat insulation plate (not shown in the figure) is arranged below the bottom plate of the battery case 2, so that the bottom of the battery pack is insulated from the outside, and heat exchange is performed with the battery core module 1 only through the cooling pipe 4, thereby reducing heat loss.

Preferably, the heat insulation plate is a plastic plate, so that materials can be conveniently obtained, the structure weight is light, and the heat insulation effect is good. The heat insulation plate is made of composite materials, so that the weight is reduced, and the heat insulation plate is fixed with the bottom plate through gluing or bolts.

Preferably, the heat insulation plate is filled with a foaming layer, the foaming layer is formed by foaming a foaming material, and the foaming layer is filled in the heat insulation plate to play roles of sound insulation, heat insulation and buffering, so that damage to the battery pack in the collision process can be reduced.

Preferably, a heat-conducting adhesive layer is arranged on the side surface of the battery cell module 1, and the side surface of the battery cell module 1 is in contact with the cooling pipe 4 through the heat-conducting adhesive layer. The heat exchange efficiency between the battery cell module 1 and the cooling pipe 4 is improved, and the heat dissipation of each battery cell is more uniform.

Preferably, the side plates 22 are formed by extrusion, so that the process flow is simpler.

Further, cooling tube 4 includes a total inlet and a total liquid outlet, total inlet and total liquid outlet all set up curb plate 22's the outside sets up a total inlet and a total liquid outlet for there is not any business turn over liquid mouth battery package is inside, and all sets up total inlet and total liquid outlet in curb plate 22's the outside, has avoided because of taking over in inside and causing the risk that the coolant liquid leaks and lead to the short circuit.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A battery pack integrated structure is characterized by comprising a battery core module (1), a cooling pipe (4) and a battery case (2), wherein the battery core module (1) is accommodated in the battery case (2), the battery case (2) comprises a side plate (22),

the cooling pipe (4) is arranged between the battery cell module (1) and the side plates (22), the cooling pipe (4) is embedded in the side plates (22), and the cooling pipe (4) is in contact with the battery cell module (1).

2. The battery pack integrated structure according to claim 1, wherein the battery case (2) further includes a bottom plate (21), a bottom surface of the cell module (1) is in contact with the bottom plate (21), side surfaces of the cell module (1) are disposed opposite to side plates (22) of the battery case (2), and the cooling pipe (4) is disposed between the side surfaces of the cell module (1) and the side plates (22) of the battery case (2).

3. The battery pack integration structure according to claim 2, wherein a heat insulating plate is provided under the bottom plate (21) of the battery case (2).

4. The battery pack integrated structure according to claim 2, wherein a heat conductive adhesive layer is disposed on a side surface of the cell module (1), and the side surface of the cell module (1) is in contact with the cooling pipe (4) through the heat conductive adhesive layer.

5. The battery pack integration structure according to claim 1 or 2, wherein an insertion groove (3) is provided on the side plate (22), and the shape of the insertion groove (3) matches the shape of the cooling pipe (4).

6. The battery pack integration structure of claim 5, wherein the side plate (22) is extruded.

7. The battery pack integration structure according to claim 1 or 4, wherein the cooling pipe (4) has a U-shaped structure.

8. The battery pack integrated structure according to claim 7, wherein the side of the cooling pipe (4) contacting the cell module (1) is a plane.

9. The battery pack integration structure according to claim 8, wherein the cooling tube (4) has a rectangular or kidney-shaped or semicircular cross section.

10. The battery pack integration structure of claim 1, wherein the cooling tube (4) comprises a main inlet and a main outlet, both arranged outside the side plate (22).