CN216213841U

CN216213841U - Battery pack frame

Info

Publication number: CN216213841U
Application number: CN202122563620.4U
Authority: CN
Inventors: 周加鑫; 张玉霞
Original assignee: Jiangsu Binbei Intelligent Technology Co ltd
Current assignee: Jiangsu Binbei Intelligent Technology Co ltd
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2022-04-05
Anticipated expiration: 2031-10-25

Abstract

The utility model discloses a battery pack frame which comprises a square frame and a battery pack cover, wherein one end of the battery pack cover is hinged with one side of the square frame, and the other end of the battery pack cover is connected with the square frame in a locking manner; the square frame comprises longitudinal rods on the left side and the right side, transverse rods at the front end and the rear end and a bottom plate, the two ends of the bottom plate are respectively connected with the longitudinal rods on the left side and the right side, and the bottom plate is formed by bearing rods at intervals; the inner sides of the longitudinal rods are connected with the left end and the right end of the transverse rod in a sliding mode, the bottom plate is provided with spacing rods, and the spacing rods are longitudinally perpendicular to the transverse rod and are connected with the inner sides of the transverse rods in a sliding mode; the lithium battery is arranged above the bottom plate at intervals. According to the utility model, the bottom plate of the square frame is formed by the bearing rods at intervals, so that the good heat dissipation of the bottom of the whole square frame is ensured.

Description

Battery pack frame

Technical Field

The utility model belongs to the field of lithium battery installation equipment, and particularly relates to a battery pack frame.

Background

With the increasingly depletion of petroleum energy sources and the increasing severity of environmental problems in the world, low-carbon economy with the aim of energy conservation and emission reduction is proposed by governments of various countries, and the vigorous development of electric vehicles and new energy storage is a key development direction. In the development of electric vehicles and new energy storage, an important development direction which can achieve practicality at present is to use lithium ion batteries, particularly lithium iron phosphate batteries, which have many advantages of high safety, large specific capacity, long service life and the like, and become a good energy source which can be used. In these applications, the capacity of the battery is required to be 100Ah or more. Depending on the current production process level and equipment level of the lithium ion battery, great difficulty still exists in the production of the lithium ion battery with ultra-large capacity. Therefore, most of the existing high-capacity lithium-ion batteries are formed into a single battery with large capacity by connecting a plurality of small-capacity batteries in parallel, so that the aim of increasing the capacity of the battery is fulfilled, and the batteries are connected in series or in parallel to achieve the required capacity and voltage value of the battery.

During the operation of the battery at normal temperature, heat is generated according to different discharge rates, the heat can cause the temperature of the battery to rise, and the performance of the battery is very sensitive to the temperature (preferably kept at 25 +/-5 ℃), so that a good heat dissipation structure is required.

Disclosure of Invention

The utility model provides a battery pack frame, aiming at the problems that in the prior art, a large amount of heat is generated in the working process of a lithium battery, and the closed battery pack frame is lack of heat dissipation performance although the lithium battery is stably fixed.

In order to achieve the technical purpose, the technical scheme adopted by the utility model is as follows:

a battery pack frame comprises a square frame and a battery pack cover, wherein one end of the battery pack cover is hinged with one side of the square frame, and the other end of the battery pack cover is connected with the square frame in a locking manner;

the square frame comprises longitudinal rods on the left side and the right side, transverse rods at the front end and the rear end and a bottom plate, the two ends of the bottom plate are respectively connected with the longitudinal rods on the left side and the right side, and the bottom plate is formed by bearing rods at intervals;

the inner sides of the longitudinal rods are connected with the left end and the right end of the transverse rod in a sliding mode, the bottom plate is provided with spacing rods, and the spacing rods are longitudinally perpendicular to the transverse rod and are connected with the inner sides of the transverse rods in a sliding mode; the lithium battery is arranged above the bottom plate at intervals.

Furthermore, the inner side of the longitudinal rod is provided with a first sliding groove, the left end and the right end of the transverse rod are provided with first tenons, and the first tenons are connected in the first sliding grooves in a sliding mode.

Furthermore, a first positioning hole is formed in the joint of the first tenon and the longitudinal rod, and a bolt is arranged in the first positioning hole.

Furthermore, two or more first positioning holes are formed in the upper end face of the longitudinal rod.

Furthermore, a second sliding groove is formed in the inner side of the cross rod, second tenons are arranged at the upper end and the lower end of the spacing rod and are connected in the second sliding groove in a sliding mode, a second positioning hole is formed in the joint of each second tenon and the cross rod, a bolt is arranged in each second positioning hole, and two or more second positioning holes are formed in the upper end face of the cross rod.

Further, the battery pack cover is hinged to the upper end face of the cross rod, and a hinge is arranged at the hinged position.

Furthermore, the shape of the battery pack cover is a wavy surface and is matched with the shape of the cylindrical side wall of the lithium battery exposed out of the upper end of the square frame.

Furthermore, the bottom plate and the battery pack cover are made of plastic materials.

Compared with the prior art, the utility model has the following beneficial effects:

the bottom plate of the square frame is formed by the bearing rods at intervals, so that the good heat dissipation of the bottom of the whole square frame is ensured; meanwhile, the type or the length of the lithium battery mounted in the square frame can be adjusted through the longitudinal rods and the transverse rods which are connected in a sliding manner; and the thickness of the lithium battery model can be adjusted by the aid of the cross rods and the spacing rods which are connected in a sliding mode. And then realize that can install the lithium cell of multiple model size difference on the battery pack frame.

Drawings

FIG. 1 is a schematic view of a square frame structure of a battery frame according to the present invention;

fig. 2 is an overall plan view of a battery pack frame according to the present invention;

FIG. 3 is a front view of a battery frame of the present invention;

FIG. 4 is a schematic view of a vertical bar and horizontal bar connection structure of a battery frame according to the present invention;

fig. 5 is a schematic view illustrating a connection structure of a cross bar and a spacer bar of a battery pack frame according to the present invention.

The notation in the figure is: 1-square frame, 2-battery pack cover, 11-vertical rod, 12-transverse rod, 13-bottom plate, 14-spacing rod, 3-first sliding groove, 4-first tenon, 5-first positioning hole, 6-bolt, 7-second sliding groove, 8-second tenon, 9-second positioning hole and 10-hinge.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

As shown in fig. 1 and 2, a battery pack frame comprises a square frame 1 and a battery pack cover 2, wherein one end of the battery pack cover 2 is hinged with one side of the square frame 1, and the other end of the battery pack cover 2 is connected with the square frame 1 in a locking manner; the square frame 1 comprises longitudinal rods 11 at the left side and the right side, cross rods 12 at the front end and the rear end and a bottom plate 13, two ends of the bottom plate 13 are respectively connected with the longitudinal rods 11 at the left side and the right side, and the bottom plate 13 is formed by bearing rods arranged at intervals; the inner side of the longitudinal rod 11 is connected with the left end and the right end of the transverse rod 12 in a sliding manner, the bottom plate 13 is provided with a spacing rod 14, and the spacing rod 14 is vertical to the transverse rod 12 in the longitudinal direction and is connected with the inner side of the transverse rod 12 in a sliding manner; the lithium battery is arranged above the bottom plate 13 at intervals.

As shown in fig. 4, a first sliding groove 3 is arranged on the inner side of the longitudinal rod 11, first tenons 4 are arranged at the left end and the right end of the transverse rod 12, and the first tenons 4 are slidably connected in the first sliding groove 3. Through the sliding connection mode of the first tenon 4 and the first sliding chute 3, the cross rod 12 is ensured to freely slide in the first sliding chute 3 of the longitudinal rod 11, and lithium batteries with different length types are accommodated in the square frame 1.

And a first positioning hole 5 is formed at the joint of the first tenon 4 and the longitudinal rod 11, and a bolt 6 is arranged in the positioning hole. The arrangement of the positioning holes and the bolts 6 ensures that the lithium battery and the whole battery pack frame are not unstable in connection of the transverse rods 12 and the sliding grooves of the longitudinal rods 11 due to the inclined sliding of the frame or the lithium battery in the use process. Thereby realizing the positioning and clamping of the battery of one type.

Two or more first positioning holes 5 are arranged on the upper end surface of the vertical rod 11. The setting mode of a plurality of first locating holes 5 ensures that the distance between the cross rods 12 at the front end and the rear end can be adjusted at will and fixed, and then the corresponding square frame 1 can be adapted to different types of lithium batteries with various lengths.

As shown in fig. 5, a second sliding groove 7 is formed in the inner side of the cross rod 12, second tenons 8 are arranged at the upper end and the lower end of the spacing rod 14, the second tenons 8 are slidably connected in the second sliding groove 7, a second positioning hole 9 is formed at the joint of the second tenons 8 and the cross rod 12, a bolt 6 is arranged in the second positioning hole 9, and two or more second positioning holes 9 are formed in the upper end surface of the cross rod 12. Similar with the mode that sets up of horizontal pole 12 and vertical pole 11, the mode that sets up of second spout 7, second tenon 8 and second locating hole 9 ensures that spacer bar 14 can separate the lithium cell of the different numbers of multiple thickness degree, ensures that the lithium cell of placing on bottom plate 13 can not roll at will. However, during production, one battery pack frame needs to be provided with a plurality of types of spacer bars 14 with different lengths, so that lithium batteries with different lengths can be accommodated in the range of the battery pack frame, and when the cross bars 12 slide towards the front end and the rear end in the first sliding grooves 3, the distance between the two cross bars 12 is increased, and the corresponding spacer bars 14 also need to be increased, so that the spacer bars 14 with the same length as the lithium batteries with different types need to be arranged. Meanwhile, one or more spacer bars 14 with the same length also need to be configured, because most of the existing high-capacity lithium-ion batteries are formed into a single battery with large capacity by connecting a plurality of small-capacity batteries in parallel, the purpose of increasing the battery capacity is achieved, and the batteries are connected in series or in parallel to achieve the required battery capacity and voltage value.

The battery pack cover 2 is hinged to the upper end face of the cross rod 12, and a hinge 10 is arranged at the hinged position. Through articulated group battery lid 2 and horizontal pole 12, ensure that whole square frame 1 can freely open the up end or close the up end, prevent that whole group battery frame from shaking in the use because the mechanical device of group battery frame mount, resulting in the lithium cell to shake out by group battery frame upper end.

As shown in fig. 3, the shape of the battery pack cover 2 is a wave surface, which matches the shape of the cylindrical side wall of the lithium battery exposed out of the upper end of the square frame 1. The group battery lid 2 of wave face appearance more adapts to the cylindrical lateral wall of lithium cell, when the square frame 1 is closed in whole group battery lid 2 lid of being convenient for, realizes that the centre gripping of lithium cell is fixed.

The bottom plate 13 and the battery pack cover 2 are made of plastic materials. The bottom plate 13 made of plastic material can make the bottom of the whole battery frame have better heat dissipation performance, and the heat can not be conducted to the whole battery frame or other components except the frame because of the metal material. Simultaneously group battery lid 2 adopts the plastic material to set up the purpose and ensures that group battery lid 2 has certain ductility or stretchability, adapts to the lid of the lithium cell of different thickness degrees and closes.

the bottom plate 13 of the square frame 1 is formed by the bearing rods at intervals, so that the good heat dissipation of the bottom of the whole square frame 1 is ensured; meanwhile, the type or the length of a lithium battery arranged in the square frame 1 can be adjusted through the vertical rods 11 and the transverse rods 12 which are connected in a sliding manner; and the thickness of the lithium battery model can be adjusted by the cross rods 12 and the spacing rods 14 which are connected in a sliding manner. And then realize that can install the lithium cell of multiple model size difference on the battery pack frame.

A battery pack frame provided by the present application is described in detail above. The description of the specific embodiments is provided to facilitate an understanding of the structure and design of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.

Claims

1. The battery pack frame is characterized by comprising a square frame (1) and a battery pack cover (2), wherein one end of the battery pack cover (2) is hinged with one side of the square frame (1), and the other end of the battery pack cover (2) is connected with the square frame (1) in a locking manner;

the square frame (1) comprises longitudinal rods (11) at the left side and the right side, transverse rods (12) at the front end and the rear end and a bottom plate (13), wherein two ends of the bottom plate (13) are respectively connected with the longitudinal rods (11) at the left side and the right side, and the bottom plate (13) is formed by bearing rods at intervals;

the inner side of the longitudinal rod (11) is connected with the left end and the right end of the transverse rod (12) in a sliding manner, a spacing rod (14) is arranged on the bottom plate (13), and the spacing rod (14) is vertical to the transverse rod (12) in the longitudinal direction and is connected with the inner side of the transverse rod (12) in a sliding manner; the lithium batteries are arranged above the bottom plate (13) at intervals.

2. The battery pack frame according to claim 1, wherein the inner side of the longitudinal bar (11) is provided with a first sliding slot (3), the left end and the right end of the transverse bar (12) are provided with a first tenon (4), and the first tenon (4) is slidably connected in the first sliding slot (3).

3. The battery pack frame as claimed in claim 2, wherein a first positioning hole (5) is formed at the joint of the first tenon (4) and the longitudinal rod (11), and a bolt (6) is arranged in the first positioning hole (5).

4. A battery frame according to claim 3, characterised in that the upper end surfaces of the longitudinal bars (11) are provided with two or more first positioning holes (5).

5. The battery pack frame according to claim 1 or 4, wherein a second sliding groove (7) is formed in the inner side of the cross rod (12), second tenons (8) are arranged at the upper end and the lower end of the spacing rod (14), the second tenons (8) are slidably connected in the second sliding groove (7), a second positioning hole (9) is formed in the joint of the second tenons (8) and the cross rod (12), a bolt (6) is arranged in the second positioning hole (9), and two or more second positioning holes (9) are formed in the upper end face of the cross rod (12).

6. A battery frame according to claim 5, characterised in that the battery cover (2) is hinged to the upper end face of the cross bar (12), where the hinge (10) is located.

7. A battery frame according to claim 6, characterised in that the battery cover (2) is contoured to match the contour of the cylindrical side wall of the lithium battery exposed at the upper end of the square frame (1).

8. A battery frame according to claim 7, characterised in that the base plate (13) and the battery cover (2) are made of plastic.