CN203983361U - Cylindrical lithium battery module is skeleton fixedly - Google Patents

Abstract

The cylindrical lithium battery module fixed skeleton belongs to the field of electric vehicle lithium battery module installation structure, including a square hollow frame, and the inner wall of the frame is provided with a supporting base that matches the shape of the cylindrical lithium battery module and is arranged in concave and convex alternately , the inside of the frame body is provided with a number of limiting ribs in an S-shaped continuous arrangement structure whose two ends are respectively connected to the opposite sides of the frame body, and the limiting ribs placed between adjacent limiting ribs and placed at the ends A limiting cavity with a similar structure for the installation of the cylindrical lithium battery module is left between the supporting bases of the adjacent frame body. The fixed framework of the cylindrical lithium battery module of the utility model can accurately locate its spatial position in the module through the design of the framework structure, limit the placement position of the cylindrical lithium battery in the module and facilitate the fixing of the module in the battery system , At the same time, it can avoid potential short circuit danger, and enhance the stability and safety of the module in the system.

Description

Cylindrical lithium battery module fixing frame

technical field

The utility model belongs to the field of installation structure of lithium battery modules of electric vehicles, in particular to a fixed framework of cylindrical lithium battery modules.

Background technique

At present, the total global greenhouse gas emissions continue to rise, a large part of which comes from automobiles, and the pollutants emitted by traditional fuel vehicles have become an important factor in air pollution. In recent years, the smog weather that occurs frequently in China has seriously endangered people's health and life. Traditional fuel vehicles have endless demand for non-renewable energy such as petroleum, and how to reduce the dependence of automobiles on petroleum is an urgent problem to be solved. Compared with traditional fuel vehicles, electric vehicles have zero emissions. They not only replace petroleum with electric energy, reduce the emission of greenhouse gases and other gases that pollute the atmosphere, but also use lithium batteries to manufacture energy storage devices, killing three birds with one stone. .

With the explosive development of the global electric vehicle market, the demand for lithium batteries for vehicles is also increasing. Compared with square and pouch batteries, cylindrical lithium batteries are easy to automate production, high in consistency, good in heat dissipation, and not easy to swell. , high safety performance and other advantages, it is more and more favored by major electric vehicle manufacturers. Among them, the Tesla electric vehicle has brought the use of cylindrical batteries to the extreme.

Cylindrical lithium battery packs are generally combined by multiple lithium batteries connected in series and parallel, then fixed in the battery fixing grooves of the upper and lower pressure plates, and finally the battery pack is fixed by some auxiliary fixing structures. Considering the various situations encountered during the driving of the electric vehicle, the fixing of the cylindrical lithium battery must be reliable, and the electrical connection must be safe and effective.

Utility model content

Aiming at the technical problems existing in the prior art, the purpose of the utility model is to provide a cylindrical lithium battery module fixing frame.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a cylindrical lithium battery module fixed skeleton, including a square hollow frame body, the inner wall of the frame body is provided with a 1. A supporting matrix arranged in concave and convex alternately, the inside of the frame body is provided with a number of limiting ribs in an S-shaped continuous arrangement structure whose two ends are respectively connected to the opposite sides of the frame body. Between the limiting rib placed at the end and the supporting base of the adjacent frame, there is a limiting cavity with a similar structure for the installation of the cylindrical lithium battery module.

The utility model can also be implemented through the following technical solutions:

The connecting position between the limiting ribs and the frame body is provided with a support column that runs through the side of the frame body and is integrally formed with it. The support column is parallel to the spatial extension direction of the limit cavity in the frame. A through hole penetrating through the body of the support column is opened.

The thickness of the limiting rib is 2-4mm.

On the side of the frame body adjacent to the limiting rib at the end, there is a module pressing structure formed integrally with it, and the module pressing structure is in the shape of a right-angled trapezoid with a hollow inside.

The thickness of the module pressing structure is 3-5 mm.

The side of the frame body provided with the module pressing structure is provided with a tie rod fixing seat that penetrates the side of the frame body and is integrally formed with it. The tie rod fixing seat is parallel to the spatial extension direction of the limiting cavity in the frame. A through hole penetrating through the body of the tie rod fixing seat is opened.

The fixed framework of the cylindrical lithium battery module of the utility model can accurately locate its spatial position in the module through the design of the framework structure, limit the placement position of the cylindrical lithium battery in the module and facilitate the fixing of the module in the battery system , At the same time, it can avoid potential short circuit danger, and enhance the stability and safety of the module in the system.

Description of drawings

Fig. 1 is the structural representation of the utility model.

The reference signs in the figure have the following meanings:

1-Support column 2-Modular compression structure

3-Tie rod fixing seat 4-Limiting rib

5-frame body 6-limit cavity

7-Support matrix.

Detailed ways

In order to further describe the utility model, the utility model is described in further detail below in conjunction with accompanying drawing.

Please refer to Figure 1, a cylindrical lithium battery module fixed skeleton, including a square hollow frame body 5, the inner wall of the frame body 5 is provided with supports that match the shape of the cylindrical lithium battery module and are arranged alternately. Substrate7.

The inside of the frame body 5 is provided with a plurality of limiting ribs 4 with two ends respectively connected to the opposite sides of the frame body 5 in an S-shaped continuous arrangement structure. The thickness of each position on the limiting ribs 4 is uniform, generally 2 to 4mm, between the adjacent limiting ribs 4, between the limiting ribs 4 placed at the end and the supporting base 7 of the adjacent frame body 5, there is a cylindrical lithium battery module with a similar structure. The limiting cavity 6, through its structural design combined with the frame body, limits the placement position of the cylindrical lithium battery in the module.

The connecting position between the limiting ribs 4 and the frame body 5 is provided with a support column 1 that runs through the side of the frame body 5 and is integrally formed with it. The support column 1 and the limit cavity 6 in the frame body 5 The spatial extension directions are parallel, and the support column 1 has a through hole through its body, which is designed to limit the spatial position of the frame in the module and avoid short circuits caused by the exposure of the metal tie rods that fix the module. Potential hazards such as electric leakage.

On the side of the frame body 5 adjacent to the limiting rib 4 at the end, there is provided a module pressing structure 2 integrally formed with it, and the module pressing structure 2 is in the shape of a right-angled trapezoid with a hollow interior. The thickness of each position on the pressing structure 2 is uniform, generally 3-5 mm. From the perspective of the figure, the upper surface of the module pressing structure 2 is on the same surface as the upper surface of the frame body 5, and the module is fixed in the battery system by pressing the fixing bead on the module pressing structure 2. Spatial location.

The side of the frame body 5 provided with the module pressing structure 2 is provided with a tie rod fixing seat 3 which runs through the side of the frame body 5 and is integrally formed with it. The extending directions of the space are parallel to each other, and there is a through hole penetrating through the body of the tie rod fixing base 3 . It is used to avoid the exposure of the long tie rods that tighten the modules in the battery system, ensuring the safety and reliability of the battery system.

The frame body is made of flame-retardant acrylonitrile-butadiene-styrene plastic (ABS) and polycarbonate (PC), which is light in weight and easy to process and shape, and can prevent the cylindrical lithium battery from being damaged due to excessive temperature. to improve the safety performance of the battery system.

The fixed framework of the cylindrical lithium battery module of the utility model can be used for electric vehicles after the battery system is assembled and subjected to a vibration test.

The above content is only an example and description of the concept of the utility model. Those skilled in the art make various modifications or supplements to the described specific embodiments or replace them in similar ways, as long as they do not deviate from the utility model. Designs or beyond the scope defined in the claims, all should belong to the protection scope of the present utility model.

Claims (6)

1. the fixing skeleton of a cylindrical lithium battery module, it is characterized in that: the support body (5) that comprises the hollow form that is square, the inwall of described support body (5) is provided with cylindrical lithium battery module profile and matches, the support substrate (7) that is concavo-convex interphase distribution, described support body (5) inside is provided with the limit ribs (4) of the S-shaped continuous arrangement that several two ends are connected with the relative edge of support body (5) respectively, between adjacent limit ribs (4), be placed between the support substrate (7) of the support body (5) that the limit ribs (4) of end is adjacent and keep somewhere and have the akin spacing cavity (6) of installing for cylindrical lithium battery module of structure.

2. the fixing skeleton of cylindrical lithium battery module according to claim 1, it is characterized in that: the link position between described limit ribs (4) and support body (5) be provided with run through support body (5) side and with the support column (1) of its integral molding, described support column (1) parallels with the space bearing of trend of spacing cavity (6) in support body (5), and described support column offers the through hole that runs through its body in (1).

3. the fixing skeleton of cylindrical lithium battery module according to claim 1, is characterized in that: the thickness of described limit ribs (4) is 2～4mm.

4. the fixing skeleton of cylindrical lithium battery module according to claim 1, it is characterized in that: on support body (5) side adjacent with limit ribs (4) in end, be provided with the module pressing structure (2) with its integral molding, described module pressing structure (2) is the right-angled trapezium shape of inner hollow.

5. the fixing skeleton of cylindrical lithium battery module according to claim 4, is characterized in that: the thickness of described module pressing structure (2) is 3～5mm.

6. the fixing skeleton of cylindrical lithium battery module according to claim 4, it is characterized in that: be provided with on support body (5) side of module pressing structure (2), be provided with run through support body (5) side and with the pull bar holder (3) of its integral molding, described pull bar holder (3) parallels with the space bearing of trend of spacing cavity (6) in support body (5), in described pull bar holder (3), offers the through hole that runs through its body.

?