Battery pack shell

Abstract

The utility model provides a battery pack shell, which relates to the field and comprises a lower shell body with an opening at the bottom end, a plurality of reinforcing ribs are arranged on the inner side of the lower shell body and close to the opening, a reinforcing plate is arranged below the reinforcing ribs, and a bottom plate which penetrates through the reinforcing plate and is connected with the reinforcing ribs is arranged below the reinforcing plate. The reinforcing plate is installed at the bottom end of the lower shell body through the bottom plate, and through the shape of the reinforcing plate, when the bottom plate is subjected to impact force within a certain range, the structural strength of the lower shell body can be improved through the structural shape of the reinforcing plate, and therefore the load bearing capacity of the lower shell body is improved. And the lower shell can bear a force below, so that the risk that the battery is deformed and damaged due to the collision of the bottom end of the lower shell is reduced.

Description

Technical Field

[0001] This utility model relates to the field of batteries, and more particularly to a battery pack casing. Background Technology

[0002] A battery pack includes a battery pack casing and battery modules assembled inside the battery pack casing. Currently, the bottom structure of the battery pack casing in existing technologies is relatively weak. This makes the bottom of the battery pack casing prone to deformation or even damage when the battery pack is impacted or collided by external forces during movement, which can lead to the risk of battery failure or damage. Utility Model Content

[0003] The purpose of this utility model is to solve the following problems existing in the prior art: the bottom structure of the battery pack shell in the prior art is weak, which makes the bottom of the battery pack shell prone to deformation or even damage when the bottom of the battery pack is hit or collided by external force during the movement of the battery pack, thus easily leading to the risk of battery failure or damage.

[0004] To address the problems existing in the prior art, this utility model provides a battery pack shell, including a lower shell with an opening at the bottom. A plurality of reinforcing ribs are provided on the inner side of the lower shell near the opening. A reinforcing plate is provided below the reinforcing ribs. A bottom plate is provided below the reinforcing plate and passes through the reinforcing plate and is connected to the reinforcing ribs. A placement plate is provided at the top of the reinforcing ribs.

[0005] Preferably, the reinforcing plate is serrated, and the bottom serrations of the reinforcing plate are planar, and the bottom plate passes through the plane of the reinforcing plate and is connected to the reinforcing rib.

[0006] Preferably, multiple connecting ribs are provided between the multiple reinforcing ribs, and the thickness and width of the connecting ribs are the same as the dimensions of the reinforcing ribs.

[0007] Preferably, the top of the base plate has a plurality of bolts and nuts, the nuts of the base plate are located above the reinforcing ribs, and the bolts of the base plate pass through the reinforcing plate and the reinforcing ribs and are connected to the nuts.

[0008] Preferably, the bottom end of the base plate is located inside the opening of the lower housing, and the bottom end of the base plate is flush with the bottom end of the opening of the lower housing.

[0009] Preferably, the surface of the placement plate is provided with a through hole at the bolt and nut location on the base plate, and the through hole of the placement plate is larger than the size of the nut on the base plate.

[0010] Preferably, a gasket is provided below the reinforcing plate and at the top of the base plate.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This invention uses a base plate to install a reinforcing plate at the bottom of the lower housing. By utilizing the shape of the reinforcing plate, the structural strength of the lower housing can be improved when the base plate is subjected to a certain range of impact force. This enhances the load-bearing capacity of the lower housing, allowing it to withstand the force from below and reducing the risk of battery deformation and damage caused by collisions to the bottom of the lower housing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a top view of the overall structure of this utility model;

[0015] Figure 3 This is a bottom view of the overall structure of this utility model;

[0016] Figure 4 This is an exploded cross-sectional view of the lower shell of this utility model;

[0017] Figure 5 This is an exploded cross-sectional view of the bolt area on the base plate of this utility model.

[0018] Reference numerals: 1. Lower shell; 2. Placement plate; 3. Base plate; 4. Gasket; 5. Reinforcing plate; 6. Reinforcing rib; 7. Connecting rib. Detailed Implementation

[0019] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation details without creative effort are all within the protection scope of this invention.

[0020] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0021] Example 1

[0022] like Figure 1-5 As shown, a battery pack casing includes a lower casing 1 with an opening at the bottom. A plurality of reinforcing ribs 6 are provided on the inner side of the lower casing 1 and near the opening. A reinforcing plate 5 is provided below the reinforcing ribs 6. A bottom plate 3 is provided below the reinforcing plate 5, penetrating the reinforcing plate 5 and connected to the reinforcing ribs 6. A placement plate 2 is provided at the top of the reinforcing ribs 6.

[0023] Therefore, by providing a reinforcing plate 5 on the inner side of the lower housing 1, and by providing and connecting reinforcing ribs 6 and the base plate 3 of the reinforcing plate 5 at the bottom end of the lower housing 1, the structural strength of the bottom end of the lower housing 1 can be effectively improved, thereby enhancing the load-bearing capacity of the lower housing 1.

[0024] Among them, such as Figure 4-5 As shown, the reinforcing plate 5 is serrated, and the bottom serrations of the reinforcing plate 5 are flat. The bottom plate 3 passes through the flat surface of the reinforcing plate 5 and connects with the reinforcing rib 6. In this way, when the bottom plate 3 is subjected to a certain range of impact force [within the bearing capacity of the reinforcing plate 5], the structural shape of the reinforcing plate 5 can improve the structural strength of the lower housing 1, so that the lower housing 1 can withstand the force below, thereby reducing the risk of the battery being deformed and damaged due to a collision at the bottom of the lower housing 1.

[0025] Multiple connecting ribs 7 are provided between multiple reinforcing ribs 6. The thickness and width of the connecting ribs 7 are the same as the dimensions of the reinforcing ribs 6. The connecting ribs 7 connect multiple reinforcing ribs 6 into one piece, reducing the risk of deformation of the reinforcing ribs 6 when the base plate 3 is subjected to a certain range of impact force.

[0026] The top of the base plate 3 has multiple bolts and nuts. The nuts of the base plate 3 are located above the reinforcing rib 6. The bolts of the base plate 3 pass through the reinforcing plate 5 and the reinforcing rib 6 and are connected to the nuts. The base plate 3 is installed by the bolts, and the reinforcing plate 5 is clamped between the base plate 3 and the reinforcing rib 6. The reinforcing plate 5 is only fitted onto the bolts of the base plate 3. When the base plate 3 is subjected to a certain range of impact force, the reinforcing plate 5 can expand outward in parallel under the force, so that the edge of the lower housing 1 and the bolts and nuts of the base plate 3 can also withstand the impact force, thereby improving the safety of the battery in the lower housing 1.

[0027] The bottom end of the base plate 3 is located inside the opening of the lower housing 1, and the bottom end of the base plate 3 is flush with the bottom end of the opening of the lower housing 1. The surface of the placement plate 2 and the bolt and nut of the base plate 3 are provided with through holes. The through holes of the placement plate 2 are larger than the nut size of the base plate 3. This structure can reduce the thickness of the bottom end of the lower housing 1 during installation, and at the same time make the installation of the bottom end of the lower housing 1 unobstructed.

[0028] A gasket 4 is provided below the reinforcing plate 5 and at the top of the base plate 3. The gasket 4 is provided between the reinforcing plate 5 and the base plate 3 so that the gasket 4 can absorb minor impacts.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A battery pack housing, characterized in that: The invention comprises a lower shell (1) having an opening at the bottom end, a plurality of reinforcing ribs (6) are provided on the inner side of the lower shell (1) and near the opening, a reinforcing plate (5) is provided below the reinforcing rib (6), a bottom plate (3) penetrating the reinforcing plate (5) and connected to the reinforcing rib (6) is provided below the reinforcing plate (5), and a placement plate (2) is provided at the top end of the reinforcing rib (6).

2. A battery pack housing according to claim 1, characterized in that: The reinforcing plate (5) is in a sawtooth shape, and the sawtooth at the bottom end of the reinforcing plate (5) is in a plane shape, and the bottom plate (3) passes through the plane of the reinforcing plate (5) and is connected to the reinforcing rib (6).

3. The battery pack housing according to claim 1, characterized in that: A plurality of connecting ribs (7) are provided between the plurality of reinforcing ribs (6), and the thickness and width of the connecting ribs (7) are the same as the dimensions of the reinforcing ribs (6).

4. The battery pack housing according to claim 1, characterized in that: The top end of the base plate (3) is provided with a plurality of bolts and nuts, the nuts of the base plate (3) are located above the reinforcing ribs (6), and the bolts of the base plate (3) pass through the reinforcing plate (5) and the reinforcing ribs (6) to be connected with the nuts.

5. The battery pack housing according to claim 1, characterized in that: The bottom end of the bottom plate (3) is located inside the opening of the lower shell (1), and the bottom end of the bottom plate (3) is flush with the bottom end of the opening of the lower shell (1).

6. A battery pack housing according to claim 4, characterized in that: Through holes are provided on the surface of the placement plate (2) and at the bolts and nuts of the bottom plate (3); the through holes of the placement plate (2) are larger than the size of the nuts of the bottom plate (3).

7. The battery pack housing according to claim 1, characterized in that: A gasket (4) is provided below the reinforcing plate (5) and at the top end of the bottom plate (3).

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