WO2023246085A1

WO2023246085A1 - Battery case with simple structure

Info

Publication number: WO2023246085A1
Application number: PCT/CN2023/071251
Authority: WO
Inventors: 刘会敏; 周纪君; 王守康; 栓柱; 郭鹏; 王若蒙
Original assignee: 上海启源芯动力科技有限公司; 上海融和智电新能源有限公司
Priority date: 2022-06-23
Filing date: 2023-01-09
Publication date: 2023-12-28
Also published as: CN218123606U

Abstract

A battery case with a simple structure, the battery case comprising a top lifting frame (1), a bottom bracket (2) and several battery packs (3). The bottom bracket (2) and the top lifting frame (1) are arranged spaced apart from each other. Each battery pack (3) is arranged between the top lifting frame (1) and the bottom bracket (2), the battery packs (3) are sequentially arranged in the extension direction of the bottom bracket (2), the top of each battery pack (3) is fixedly connected to the top lifting frame (1), and the bottom of each battery pack (3) is fixedly connected to the bottom bracket (2). The battery packs (3) of the battery case can be directly connected to the top lifting frame (1) and the bottom bracket (2), and the battery packs (3) form part of a main body frame structure of the battery case, such that the assembly structure is simplified.

Description

A battery box with simple structure

Technical field

The utility model relates to the technical field of new energy equipment, and in particular to a battery box with a simple structure.

Background technique

In the prior art, a battery box includes a battery pack, a main frame, a top suspension frame and a bottom bracket. The top lifting frame is connected to the top of the main frame, the bottom bracket is connected to the bottom of the main frame, and the battery pack needs to be installed into the cavity inside the main frame. This assembly structure requires a large amount of metal materials for the main frame, and the consumables are large, causing certain of waste.

In view of this, the present utility model is proposed.

Utility model content

The utility model provides a battery box with a simple structure.

This application provides the following technical solutions:

A battery box with a simple structure, including:

Top-mounted rack;

A bottom bracket, the bottom bracket and the top suspension bracket are arranged at intervals;

A plurality of battery packs, each battery pack is arranged between the top suspension frame and the bottom bracket, and the battery packs are arranged in sequence along the extension direction of the bottom bracket, and the top of each battery pack is fixedly connected to the A top suspension bracket, the bottom of each battery pack is fixedly connected to the bottom bracket.

Optionally, the battery pack includes a frame, an inner panel body and a battery module;

The inner plate body is connected to the frame, the inner plate body is enclosed to form a cavity, and the battery module is installed in the cavity;

The top suspension frame is fixedly connected to the frame.

Optionally, the top lifting frame has a top lifting fitting frame and a bottom connecting frame, and the top lifting fitting frame and the bottom connecting frame are connected;

The frame includes a top planar frame;

The top plane frame and the bottom connection frame are connected and fixed.

Optionally, the bottom connection frame has two first main beams spaced apart;

The top plane frame has two second main beams spaced apart;

The two first main beams are respectively connected and fixed with the corresponding second main beams.

Optionally, the first main beam is provided with a plurality of connecting holes along the length direction, and the second main beam is provided with a plurality of fixing holes along the length direction;

Each end of the plurality of fasteners passes through a connecting hole and is connected to a corresponding fixing hole.

The bottom bracket and the frame are fixedly connected.

Optionally, the bottom bracket has an upper support frame and a lower assembly frame, and an accommodation space is formed between the upper support frame and the lower assembly frame;

The frame includes a bottom planar frame;

The bottom plane frame and the upper support frame are fixedly connected.

Optionally, the upper support frame has two third main beams spaced apart;

The bottom plane frame has two fourth main beams spaced apart;

A plurality of fasteners pass through the third main beam and are connected to the fourth main beam.

Optionally, the upper support frame is provided with a plurality of fixing seats, and each of the fixing seats is arranged in sequence in a direction perpendicular to the third main beam;

The bottom planar frame has a fifth main beam perpendicular to the fourth main beam;

A plurality of fasteners pass through corresponding fixing seats and are connected to the fifth main beam.

Optionally, the bottom bracket is provided with a bottom support plate;

The battery pack is supported on the bottom support plate.

Optionally, a wear-resistant strip is provided on the support surface of the bottom support plate, and the battery pack is supported on the wear-resistant strip.

Optionally, the battery box further includes a connecting beam, which is connected to the top suspension frame and the bottom bracket respectively. The connecting beam has two connecting plates, and the two connecting plates are connected to two adjacent ones respectively. battery pack.

Optionally, the battery box with a simple structure also includes an outer protective plate covering the outer wall of each battery pack.

By adopting the above technical solutions, this application has the following beneficial effects:

The battery pack of the battery box of the present application can be directly connected to the top suspension frame and the bottom bracket. The battery pack constitutes a part of the main frame structure of the battery box, which simplifies the assembly structure.

The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Description of the drawings

The drawings, as part of this application, are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model, but do not constitute an improper limitation of the present utility model. Obviously, the drawings in the following description are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts. In the attached picture:

Figure 1 shows a schematic three-dimensional structural diagram of a battery box provided by an embodiment of the present application;

Figure 2 shows a state diagram of the battery box provided by the embodiment of the present application after removing the outer protective plate;

Figure 3 shows another perspective view of Figure 2;

Figure 4 shows an exploded view of the battery box provided by the embodiment of the present application (part of the structure is deleted);

FIG. 5 shows a state diagram of the battery box provided by the embodiment of the present application after removing the outer protective plate and part of the inner plate of the battery pack.

In the picture: 1. Top lifting frame; 11. Top lifting matching frame; 12. First main beam; 2. Bottom bracket; 21. Third main beam; 22. Bottom support plate; 23. Wear-resistant strip; 3. Battery Package; 31. Second main beam; 32. Inner plate body; 33. Battery module; 34. Fourth main beam; 35. Fifth main beam; 4. Fixed seat; 5. Connecting vertical beam; 51. Connecting plate ; 6. External protective panel; 7. High and low voltage boxes; 8. Air conditioning unit; a. Fasteners;

It should be noted that these drawings and text descriptions are not intended to limit the scope of the present invention in any way, but are intended to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. The following examples are used for illustration. The utility model is not used to limit the scope of the utility model.

In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only In order to facilitate the description of the present invention and simplify the description, it is not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention.

In the description of the present utility model, it should be noted that, unless otherwise clearly stated and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection, or Integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Referring to Figures 1 to 5, Embodiment 1 of the present application provides a battery box with a simple structure, including: a top suspension frame 1, a bottom bracket 2 and a plurality of battery packs 3. The bottom bracket 2 and the top suspension bracket 1 are arranged at intervals. Each of the battery packs 3 is arranged between the top suspension frame 1 and the bottom bracket 2, and the battery packs 3 are arranged in sequence along the extension direction of the bottom bracket 2. The top of each battery pack 3 is fixedly connected to The top suspension frame 1 and the bottom of each battery pack 3 are fixedly connected to the bottom bracket 2 . The battery pack 3 of the battery box of the present application can be directly connected to the top suspension frame 1 and the bottom bracket 2. The battery pack 3 constitutes a part of the main frame structure of the battery box, which simplifies the assembly structure.

In a possible implementation, the battery pack 3 includes a frame, an inner panel body 32 and a battery module 33 . The inner plate body 32 is connected to the frame, and the inner plate body 32 encloses a cavity. The battery module 33 is installed in the cavity, and the top suspension frame 1 is fixedly connected to the frame.

In this embodiment, the structural strength of the battery pack 3 is improved by providing a frame, so that the structural strength of the battery pack 3 can meet the stiffness requirements as a part of the main frame structure of the battery box.

In a possible embodiment, the top suspension frame 1 has a top suspension matching frame 11 and a bottom connection frame. The top suspension matching frame 11 is connected to the bottom connection frame. The frame includes a top plane frame, The top plane frame and the bottom connection frame are connected and fixed.

In a possible implementation, as shown in Figures 2 and 5, the bottom connection frame has two first main beams 12 spaced apart, and the top planar frame has two second main beams 12 spaced apart. 31. The two first main beams 12 are connected and fixed to the corresponding second main beams 31 respectively.

The first main beam 12 is provided with a plurality of connecting holes along the length direction, the second main beam 31 is provided with a plurality of fixing holes along the length direction, and the plurality of fasteners a are connected through one connecting hole at one end. to the corresponding fixing holes. The fastener a can be a bolt, which facilitates disassembly and assembly.

In a possible implementation, the battery pack 3 includes a frame, an inner panel 32 and a battery module 33. The inner panel 32 is connected to the frame, and the inner panel 32 encloses a cavity. , the battery module 33 is installed in the cavity, and the bottom bracket 2 and the frame are fixedly connected.

The bottom bracket 2 has an upper support frame and a lower assembly frame, and an accommodation space is formed between the upper support frame and the lower assembly frame. The frame includes a bottom plane frame, which is fixedly connected to the upper support frame.

In a possible implementation, as shown in Figures 2 and 3, the upper support frame has two third main beams 21 spaced apart. The bottom planar frame has two fourth main beams 34 spaced apart. A plurality of fasteners a respectively pass through the third main beam 21 and are connected to the fourth main beam 34 . The fastener a can be a bolt, which facilitates insertion.

In a possible implementation, a plurality of fixing seats 4 are provided on the upper support frame, and each of the fixing seats 4 is arranged in sequence in a direction perpendicular to the third main beam 21 . The bottom plane frame has a fifth main beam 35 perpendicular to the fourth main beam 34. A plurality of fasteners a pass through corresponding fixing seats 4 and are connected to the fifth main beam 35 .

In a possible implementation, the bottom bracket 2 is provided with a bottom support plate 22 . The battery pack 3 is supported on the bottom support plate 22 . An anti-wear strip 23 is provided on the support surface of the bottom support plate 22 , and the battery pack 3 is supported on the anti-wear strip 23 .

In this embodiment, anti-wear strips 23 are provided on the bottom support plate 22 . When the battery pack 3 is supported on the bottom support plate 22, the bottom wall of the battery pack 3 is in contact with the wear-resistant strip. The bottom support plate 22 may have a metal structure, and its surface is covered with a protective layer. During the process of installing the battery pack 3 onto the bottom support plate 22, the battery pack 3 can easily damage the protective layer. In view of this, in the embodiment of the present application, anti-wear strips are provided on the support surface. The anti-wear strips can be higher than the support surface of the bottom support plate 22. After the battery pack 3 is installed in the bottom support plate 22, it can directly contact the anti-wear strips and There is a small gap between the protective layer and the protective layer, so as to avoid abrasion of the protective layer on the surface of the bottom support plate 22 during the process of disassembling and assembling the battery pack 3 . Anti-wear strips can be made of engineering plastics. A plurality of wear-resistant strips 23 may be provided on the bottom support plate 22 . Each wear-resistant strip 23 is arranged sequentially along the length direction of the bottom support plate 22 . Each wear-resistant strip 23 extends along the width direction of the bottom support plate 22 .

In a possible implementation, the battery box further includes a connecting beam 5, which is connected to the top suspension frame and the bottom bracket respectively. The connecting beam 5 has two connecting plates 51, and the two connecting beams 51 are connected to each other. The connecting plates 51 connect two adjacent battery packs 3 respectively. Further fix the position of each battery pack 3.

In a possible implementation, the battery box further includes an outer protective plate 6 covering the outer wall of each battery pack 3 . In addition to its protective function, the outer protective plate 6 also has an aesthetic effect.

The bottom bracket has an upper support frame and a lower assembly frame. An accommodation space is formed between the upper support frame and the lower assembly frame. An air conditioning unit 8 and a high and low voltage box 7 are arranged in the accommodation space. The high and low voltage box 7 is electrically Each of the battery modules is connected, and the air conditioning unit 8 is electrically connected to the high and low voltage box 7 . The air conditioning unit 8 is used to adjust the temperature in the battery box so that the battery pack can operate at a suitable temperature.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present utility model has been disclosed above in terms of preferred embodiments, they are not intended to limit the present invention. Any familiar Those skilled in the patent can make some changes or modify the above-mentioned technical contents into equivalent embodiments without departing from the technical solution of the present utility model. Content, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the solution of the present invention.

Claims

A battery box with a simple structure, which is characterized by including:

Top-mounted rack;

A bottom bracket, the bottom bracket and the top suspension bracket are arranged at intervals;

A plurality of battery packs, each battery pack is arranged between the top suspension frame and the bottom bracket, and the battery packs are arranged in sequence along the extension direction of the bottom bracket, and the top of each battery pack is fixedly connected to the A top suspension bracket, the bottom of each battery pack is fixedly connected to the bottom bracket.
The battery box with a simple structure according to claim 1, wherein the battery pack includes a frame, an inner plate body and a battery module;

The inner plate body is connected to the frame, the inner plate body is enclosed to form a cavity, and the battery module is installed in the cavity;

The top suspension frame is fixedly connected to the frame.
The battery box with a simple structure according to claim 2, wherein the top lifting frame has a top lifting fitting frame and a bottom connecting frame, and the top lifting fitting frame and the bottom connecting frame are connected;

The frame includes a top planar frame;

The top plane frame and the bottom connection frame are connected and fixed.
The battery box with a simple structure according to claim 3, wherein the bottom connection frame has two first main beams spaced apart;

The top plane frame has two second main beams spaced apart;

The two first main beams are respectively connected and fixed with the corresponding second main beams.
The battery box with a simple structure according to claim 4, wherein the first main beam is provided with a plurality of connection holes along the length direction, and the second main beam is provided with a plurality of fixing holes along the length direction;

Each end of the plurality of fasteners passes through a connecting hole and is connected to a corresponding fixing hole.
The battery box with a simple structure according to claim 1, wherein the battery pack includes a frame, an inner plate body and a battery module;

The inner plate body is connected to the frame, the inner plate body is enclosed to form a cavity, and the battery module is installed in the cavity;

The bottom bracket and the frame are fixedly connected.
The battery box with a simple structure according to claim 6, wherein the bottom bracket has an upper support frame and a lower assembly frame, and an accommodation space is formed between the upper support frame and the lower assembly frame;

The frame includes a bottom planar frame;

The bottom plane frame and the upper support frame are fixedly connected.
The battery box with a simple structure according to claim 7, wherein the upper support frame has two third main beams spaced apart;

The bottom plane frame has two fourth main beams spaced apart;

A plurality of fasteners pass through the third main beam and are connected to the fourth main beam.
The battery box with a simple structure according to claim 7, wherein the upper support frame is provided with a plurality of fixing seats, and each of the fixing seats is arranged in sequence in a direction perpendicular to the third main beam;

The bottom planar frame has a fifth main beam perpendicular to the fourth main beam;

A plurality of fasteners pass through corresponding fixing seats and are connected to the fifth main beam.
The battery box with a simple structure according to claim 1, wherein the bottom bracket is provided with a bottom support plate;

The battery pack is supported on the bottom support plate.
The battery box with a simple structure according to claim 10, characterized in that a wear-resistant strip is provided on the support surface of the bottom support plate, and the battery pack is supported on the wear-resistant strip.
The battery box with a simple structure according to claim 1, further comprising a connecting beam, which is connected to the top lifting frame and the bottom bracket respectively, and the connecting beam has two connecting plates. Each of the connecting plates connects two adjacent battery packs respectively.
The battery box with a simple structure according to claim 1, further comprising an outer protective plate covering the outer wall of each battery pack.