CN218448186U - Battery pack shell structure capable of saving space - Google Patents

Abstract

The utility model discloses a space-saving battery pack casing structure, which comprises a horizontally oppositely arranged top plate and a bottom plate, and two vertically opposite side plates, and the rear ends of the top plate, the bottom plate and the side plates are closed at the rear end board, and the connection part located at the front end of the top board, bottom board and side board. and the lower end are provided with a plurality of protrusions and depressions, and the depressions at the upper end correspond to the protrusions at the lower end one by one in the vertical direction, and the protrusions and depressions can be connected with the upper and lower layers The concave part and the protruding part on the battery pack shell are fitted; the protruding part is provided with a plurality of installation holes; the connecting part and the left and right sides of the front plate are also provided with connecting holes, the structure of the utility model It is novel, reduces the size of the battery pack in the vertical direction, effectively reduces the height of the container, and has high promotional value.

Description

A space-saving battery pack housing structure

technical field

The utility model relates to the technical field of new energy storage batteries, in particular to a space-saving battery pack shell structure.

Background technique

In my country, the new energy industry has developed rapidly with the encouragement of national policies, secondary batteries such as lithium-ion batteries have been widely used, energy storage technology has developed rapidly, and is currently pursuing the direction of lightweight and miniaturization. For a container, there are multiple battery packs placed in a container, usually 100 to 200. If the volume of each battery pack is reduced a little, the volume of the container can be greatly reduced and the container can be effectively improved. energy density. Therefore, in the process of container design, starting from the battery pack, the lightweight design of reducing size and weight must always be considered. At the same time, the structural strength of the battery pack must be ensured to ensure its safety in use.

Contents of the invention

In view of the above problems, the utility model proposes a space-saving battery pack shell structure, a zigzag structure is designed on the shell, and the upper and lower layers of battery packs are fitted together, while reducing the size and weight to a certain extent, ensuring The structural strength limits the movement in the left and right directions, and the use effect is good.

In order to realize the above functions, the utility model adopts the following technical scheme: a space-saving battery pack shell structure, which is characterized in that it includes a horizontally oppositely arranged top plate and a bottom plate, and two vertically oppositely arranged side plates. Close the rear end plate of the top plate, bottom plate and side plate, and the connecting portion located at the front end of the top plate, bottom plate, and side plate, the connecting portion is a square frame with an inner edge and the top plate, the bottom plate and the side plate, and the outer edge exceeds the top plate, the bottom plate and the side plate; a front end plate is also provided outside the connecting part, and the edge shape of the front end plate is consistent with the connecting part, and the connecting part and the front end The upper and lower ends of the plate are provided with a plurality of protrusions and depressions, and the depressions at the upper end correspond to the protrusions at the lower end one by one in the vertical direction, and the protrusions at the upper end correspond to the protrusions at the lower end. The depressions at the lower end are in one-to-one correspondence in the vertical direction, and the protrusions and depressions can be fitted with the depressions and protrusions on the upper and lower battery pack shells; the connection part and the front end plate A plurality of installation holes are provided on the protruding part of the front panel; connection holes are also provided on the left and right sides of the connecting part and the front end plate.

Further, the protruding part is trapezoidal, and its top end is provided with a transitional fillet.

Further, the connection part is fixedly connected with the bottom plate, the top plate and the side plate by welding.

Further, drainage holes are also provided on the bottom plate.

Further, an inspection port is also provided on the top plate.

To sum up, the utility model has a novel structure, reduces the height of the battery pack in the vertical direction, can effectively reduce the vertical height of the container, reduces the weight of the battery pack shell to a certain extent, and can limit the two The relative movement of the battery pack in the horizontal direction effectively increases the structural strength of the battery pack and has high promotional value.

Description of drawings

Fig. 1 is a schematic diagram of a three-dimensional structure of an embodiment of the present invention.

Fig. 2 is a three-dimensional structural schematic diagram of two battery packs fitted together.

FIG. 3 is a schematic diagram of the three-dimensional structure of FIG. 2 from another angle.

FIG. 4 is a schematic diagram of the three-dimensional structure in another angle of FIG. 3 .

Explanation of reference signs:

1-connecting part, 11-protruding part, 12-recessed part, 13-installation hole, 14-connecting hole, 2-front end plate, 3-rear end plate, 4-top plate, 5-bottom plate, 6-side plate, 41-service port, 51-drainage hole.

Detailed ways

The technical scheme of the utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.

In order to make the technical problem solved by the utility model, the technical scheme adopted and the technical effect achieved clearer, the technical scheme of the embodiment of the utility model will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiment is only Some embodiments of the utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present utility model.

It should be noted that when a component is said to be “fixed” to another component, it may be directly on the other component or there may be an intermediate component. When a component is said to be "connected" to another component, it may be directly connected to the other component or there may be intervening components at the same time. When a component is said to be "set on" another component, it may be set directly on the other component or there may be an intervening component at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only.

In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , also not within the scope of protection required by the utility model.

A space-saving battery pack casing structure as shown in Figures 1 to 4, characterized in that it includes a horizontally opposite top plate, a bottom plate, two vertically opposite side plates, and the top plate is closed at the rear end , the rear end plate of the bottom plate and the side plate, and the connecting portion located at the front end of the top plate, the bottom plate, and the side plate. Connected, the outer edge exceeds the top plate, bottom plate and side plate; the front end plate is also provided outside the connecting part, the shape of the edge of the front end plate is consistent with the connecting part, and the connecting part is connected to the upper end and the upper end of the front end plate. The lower end is provided with a plurality of protrusions and depressions, and the depressions at the upper end correspond to the protrusions at the lower end one by one in the vertical direction, and the protrusions at the upper end correspond to the depressions at the lower end One-to-one correspondence in the vertical direction, the protrusions and recesses can be fitted with the recesses and protrusions on the upper and lower battery pack shells; the connecting portion and the protrusion of the front plate A plurality of installation holes are provided on the top; connection holes are also provided on the left and right sides of the connecting part and the front end plate.

Further, the protruding part is trapezoidal, and its top end is provided with a transitional fillet.

Further, the connection part is fixedly connected with the bottom plate, the top plate and the side plate by welding.

Further, drainage holes are also provided on the bottom plate.

Further, an inspection port is also provided on the top plate.

As shown in Figure 1, the top plate, bottom plate, side plate and rear end plate are all sealed and connected by welding to form a hollow box-shaped structure in which the battery module is fixed. The battery pack is arranged on the battery box frame in the container, and is detachably connected with the battery box frame through the connection part and the connection hole on the front end surface. Due to the structure and space limitations of the container and battery box frame, when the battery pack is put into the battery box frame, it can only be fixed on the front face of the battery pack, and other parts can only be provided with certain limit and guide devices, because there is no operation inside the box frame. If the space is fixed during the process of putting the battery pack into the box frame, it cannot be disassembled later, and if there is a problem with the battery pack, it cannot be repaired. Therefore, it can only be fixed at the front of the battery pack at present. Therefore, through the connection holes provided on the front plate and the connection part, the bolts are installed, and the limit and guide devices are set at the rear end of the battery pack to try to fix the position of the battery pack in the battery box frame to avoid large damage during transportation. The vibration caused by the deformation of the front plate.

As shown in Figure 2 to Figure 4, the upper and lower layers of battery packs, the protrusions and recesses on the front plate are fitted with each other, and the vertical dimension of the superposition is 10mm. In a container, basically Place 10 battery packs. Therefore, using this upper and lower fitting structure can save about 10cm of space and reduce the vertical size to a certain extent. At the same time, the material removed from the concave part can also be reduced. The weight of the battery pack case is reduced.

The above-mentioned embodiments only illustrate the principles and effects of the present utility model, but are not intended to limit the present utility model. Anyone familiar with the technology can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by persons with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed in the utility model should still be covered by the claims of the utility model.

Claims (5)

1. A space-saving battery pack shell structure, characterized in that it comprises a horizontally opposite top plate, a bottom plate, two vertically opposite side plates, and the rear end of the top plate, bottom plate and side plates is closed at the rear end End plate, and the connection part that is arranged at the front end of described top plate, bottom plate, side plate, and described connection part is the square frame of mouth shape, and its inner edge joins with described top plate, bottom plate and side plate, and outer edge exceeds described Top plate, bottom plate and side plate; the front end plate is also provided outside the connection part, the edge shape of the front end plate is consistent with the connection part, and the upper end and the lower end of the connection part and the front end plate are provided with a plurality of protrusions and the depressions at the upper end correspond to the protrusions at the lower end one by one in the vertical direction, and the protrusions at the upper end and the depressions at the lower end correspond one by one in the vertical direction Correspondingly, the protrusions and depressions can be fitted with the depressions and protrusions on the upper and lower battery pack shells; the connecting portion and the protrusions of the front plate are provided with a plurality of installation holes ; The connecting portion and the left and right sides of the front plate are also provided with connecting holes. 2 . The space-saving shell structure of the battery pack according to claim 1 , wherein the protruding portion is trapezoidal, and a transitional fillet is provided at the top end thereof. 3 . 3 . The space-saving shell structure of the battery pack according to claim 1 , wherein the connecting portion is fixedly connected to the bottom plate, the top plate and the side plates by welding. 4 . 4 . The space-saving shell structure of the battery pack according to claim 1 , wherein a drainage hole is also provided on the bottom plate. 5 . The space-saving shell structure of the battery pack according to claim 1 , wherein an inspection port is further provided on the top plate. 6 .

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