Battery case support structure and stacked battery

Abstract

The utility model relates to energy storage battery technical field, concretely relates to a kind of supporting structure and laminated battery of battery box, supporting structure includes the bar-shaped body with rectangular section, body includes bottom plate, side plate located bottom plate both sides, end plate located length direction both ends, side plate is perpendicular with bottom plate and is connected with the edge of bottom plate, end plate is perpendicular with bottom plate and side plate respectively, the bottom of end plate is connected with the edge of bottom plate, the both sides of end plate are connected with the edge of corresponding side plate respectively, the top of both sides side plate respectively extends to form flange plate outside, flange plate is connected perpendicularly with side plate, fixed hole is set up on flange plate, end plate is set up on through inclined strut hole.The supporting structure is installed in the bottom of the battery box of energy storage battery, can be used as supporting bottom foot, play the role of protecting battery box;The supporting structure is installed between energy storage battery of upper and lower layer, can play the role of interlayer, need not to set up rack also can form laminated battery.

Description

Technical Field

[0001] This utility model relates to the field of energy storage battery technology, specifically to a battery box support structure and a stacked battery. Background Technology

[0002] Energy storage batteries are widely used as independently powerable sources. Current energy storage batteries typically consist of a battery enclosure and multiple battery modules housed within it. The battery enclosure is usually assembled from thin metal sheets using sheet metal processing to protect the internal battery modules. Since the power output of a single energy storage battery is limited, for applications requiring higher voltage outputs, multiple energy storage batteries can be connected in series to form a battery pack. To save space, current technologies often employ a stacked arrangement for battery packs, using a cabinet. The cabinet's interior is divided into multiple battery housing cavities by partitions, with energy storage batteries embedded in each cavity, thus creating a stacked arrangement of energy storage batteries.

[0003] Because the base plate of the battery enclosure is relatively thin, frequent battery movement can cause damage or deformation due to friction between the base plate and the supporting surface. For stacked battery packs, a dedicated cabinet is also required, which not only occupies a significant amount of additional space but also results in higher investment costs. Utility Model Content

[0004] This utility model first discloses a support structure for a battery box. It can achieve different functions when installed in different positions in the battery box. When installed at the bottom of the battery box, it can serve as a support foot to protect the battery box. When installed between stacked battery boxes, it can serve as a layer separator.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A battery box support structure includes a rectangular strip body. The body includes a base plate, side plates on both sides of the base plate, and end plates at both ends along the length direction. The side plates are perpendicular to the base plate and connected to the edges of the base plate. The end plates are perpendicular to both the base plate and the side plates. The bottom of the end plates is connected to the edge of the base plate. The two sides of the end plates are connected to the edges of the corresponding side plates. The tops of the side plates on both sides extend outward to form flanges. The flanges are perpendicularly connected to the side plates. Through-hole fixing holes are provided on the flanges. Through-hole diagonal bracing holes are provided on the end plates.

[0006] Furthermore, the bottom plate, the side plates on both sides, and the end plates at both ends together form a strip with a rectangular cross-section, and a cavity is formed inside the strip, with the top of the strip open.

[0007] Furthermore, a press-fit nut is provided at the inclined brace hole.

[0008] Based on the above-mentioned support structure, this utility model also discloses a stacked battery, including multiple energy storage batteries and multiple support structures. The energy storage batteries are stacked one on top of the other in sequence. The bottom battery of the lowest layer has a support structure installed on each side of its bottom battery box. The flange of the support structure is attached to the bottom of the battery box and is fixed to the battery box with bolts. Two support structures are set between adjacent energy storage batteries. The two side plates of the support structure are attached to the battery boxes of the upper and lower layers of energy storage batteries, respectively, while the flanges are attached to the sides of the battery boxes of the upper and lower layers of energy storage batteries. The two flanges of the support structure are fixed to the sides of the battery boxes of the upper and lower layers of energy storage batteries with bolts.

[0009] Furthermore, the back of the stacked battery is provided with a diagonal brace, and the two ends of the diagonal brace are respectively fixed with bolts to the diagonal brace holes of the support structure at different layer positions.

[0010] Furthermore, at least two diagonal braces are provided, and the two diagonal braces are arranged in a crisscross manner.

[0011] The support structure designed in this utility model is suitable for both single energy storage batteries and stacked batteries. When used with a single energy storage battery, a support structure can be installed on each side of the bottom of the battery box, acting as the base to support the battery box and protect it. When multiple energy storage batteries need to be stacked, no cabinet is required. Similar to the single energy storage battery method, a support structure is installed on each side of the bottom of the battery box of the bottommost energy storage battery. Then, two support structures are installed between the upper and lower adjacent energy storage batteries. However, the installation of the support structure between layers differs from that on the bottommost energy storage battery. The flange plate of the support structure between layers needs to be attached to the side of the battery box of the upper and lower layers of energy storage batteries, and the flange plate is fixed to the side of the battery box with bolts. This not only fixes the support structure, but the strip-shaped body of the support structure also provides stable support for the upper layer of energy storage batteries, acting as a partition between layers, preventing the battery boxes of the upper and lower layers of energy storage batteries from contacting each other, and also facilitating heat dissipation for individual energy storage batteries.

[0012] In addition, for cases with a large number of layers, such as three or more, diagonal bracing rods can be installed on the back of the stacked battery to improve its stability. The two ends of the diagonal bracing rods are then bolted to the diagonal bracing holes of the support structure of different layers. This allows the stacked battery to maintain structural stability without the need for a cabinet. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the support structure in the embodiment; Figure 2 This is a schematic diagram of the support structure from another perspective in the embodiment; Figure 3This is a schematic diagram of the front structure of the stacked battery in the embodiment; Figure 4 for Figure 3 A schematic diagram of the back structure.

[0014] Figure label: 1. End plate; 2. Flange plate; 3. Cavity; 4. Diagonal brace hole; 5. Fixing hole; 6. Base plate; 7. Side plate; 8. Energy storage battery; 9. Diagonal brace rod. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0016] This embodiment discloses a support structure for a battery box, the structure of which is as follows: Figure 1 and Figure 2 As shown, the support structure is formed entirely of 1.5mm steel plate through bending and welding. The support structure is elongated in shape, with a rectangular cross-section. The elongated body consists of a base plate 6, two side plates 7, and two end plates 1. Figure 2 With the indicated direction as a reference, the two sides along the length of the base plate 6 are bent upwards to form side plates 7, and the two sides along the width of the base plate 6 are bent upwards to form end plates 1. Both side plates 7 and end plates 1 are perpendicular to the base plate 6. The top edges along the length of the two side plates 7 are bent outwards horizontally to form flange plates 2, which are perpendicular to the side plates 7. The left and right sides of the end plates 1 are welded and fixed to the side plates 7 on the same side, thus forming a strip-shaped body with an open top and a hollow interior 3. To facilitate the installation of the support structure, multiple through fixing holes 5 are provided at intervals on the flange plates 2 on both sides. Further design: in order to enable the support structure to provide stable support for the stacked batteries without the need for a cabinet when used as a layer to form a stacked battery, through diagonal bracing holes 4 are also provided on the end plates 1 on both sides in this embodiment, and M8 rivet nuts are embedded in the diagonal bracing holes 4 to facilitate the subsequent installation of diagonal bracing rods 9.

[0017] The support structure described above can be used independently as a support base for a single energy storage battery 8, serving to protect the battery box. For installation on a single energy storage battery 8, please refer to... Figure 3The support structure installed at the bottom of the lowest layer of energy storage battery 8 is as follows: One support structure is installed at the bottom of the battery box on each side of the front panel of the energy storage battery 8. During installation, the two flange plates 2 are attached to the bottom surface of the battery box, with the bottom plate 6 facing downwards. The support structures on both sides are arranged parallel to each other, and the flange plates on both sides are fixed to the bottom of the battery box with bolts. This support structure not only improves the support and protection of the battery box, but also creates a gap between the bottom of the energy storage battery 8 and the placement surface, facilitating air circulation and greatly benefiting the heat dissipation of the energy storage battery 8.

[0018] The support structure designed in this utility model can also support multiple energy storage batteries stacked on top of each other, thereby forming a stacked battery. For example... Figure 3 and Figure 4 As shown, multiple energy storage batteries 8 are stacked sequentially, one above the other, with the front panels of each battery 8 facing the same direction. Two support structures are installed at the bottom of the battery box of the bottom battery 8. The installation of these support structures is the same as that of the individual energy storage battery 8 described above, and will not be repeated here. Two support structures are installed between each adjacent energy storage battery 8 (hereinafter referred to as "interlayer support structures" for easy distinction from the bottom support structure). The installation of the interlayer support structures differs from that of the bottom support structures, as follows: Figure 3 As shown, when installing two interlayer support structures on the same layer, the open ends should face outwards respectively. That is, the upper side plate 7 of the interlayer support structure should be attached to the bottom of the battery box of the upper energy storage battery 8, and the lower side plate 7 should be attached to the top of the battery box of the lower energy storage battery 8. The upper flange plate 2 of the interlayer support structure should be attached to the side wall of the battery box of the upper energy storage battery 8, and the lower flange plate 2 should be attached to the side wall of the battery box of the lower energy storage battery 8. Finally, the upper and lower flange plates 2 are fixed to the sides of the battery boxes of the upper and lower energy storage batteries 8 with bolts respectively. After assembly in the above manner, the strip-shaped body of the interlayer support structure supports the upper energy storage battery 8, forming a certain gap between the upper and lower energy storage batteries 8. Under normal circumstances, the top plate of the battery box of the energy storage battery 8 has heat dissipation holes. The gap formed by the interlayer support structure will not block the heat dissipation holes, which is conducive to the heat dissipation of the energy storage battery 8.

[0019] Furthermore, considering that when the number of energy storage battery layers 8 is large (such as three or more layers), the resulting stacked battery will be quite tall. To avoid instability due to an unstable center of gravity, this embodiment can also utilize the diagonal bracing holes 4 at the end plate 1 of the support structure to install diagonal bracing rods 9. Figure 4As shown, several diagonal braces 9 can be added to the back of the stacked battery (the side opposite the front panel). It is recommended to install at least two diagonal braces 9, arranged in a crisscross pattern. The two ends of each diagonal brace 9 are bolted to the diagonal brace holes 4 of the support structure at the corresponding layer position. This method improves the stability of the stacked battery. Installing the support structure according to the method given in this embodiment allows for the stacked arrangement of the energy storage batteries 8 without the need for a dedicated cabinet, which helps reduce equipment investment costs and minimizes the space occupied.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A support structure for a battery box, characterized in that: The body includes a rectangular strip body, which includes a base plate, side plates on both sides of the base plate, and end plates at both ends along the length direction. The side plates are perpendicular to the base plate and connected to the edge of the base plate. The end plates are perpendicular to both the base plate and the side plates. The bottom of the end plates is connected to the edge of the base plate. The two sides of the end plates are connected to the edges of the corresponding side plates. The tops of the side plates on both sides extend outward to form flange plates. The flange plates are perpendicularly connected to the side plates. Through-hole fixing holes are opened on the flange plates. Through-hole diagonal bracing holes are opened on the end plates.

2. The battery box support structure according to claim 1, characterized in that: The base plate, the side plates on both sides, and the end plates at both ends together form a strip with a rectangular cross-section. The inside of the strip is hollow, and the top of the strip is open.

3. The battery box support structure according to claim 1, characterized in that: A press-fit nut is installed at the diagonal brace hole.

4. A stacked battery, characterized in that: The device includes multiple energy storage batteries and multiple support structures as described in any one of claims 1 to 3. The energy storage batteries are stacked sequentially, with a support structure installed on each side of the bottom of the battery box of the bottom layer of energy storage batteries. The flanges of the support structures are attached to the bottom of the battery box and are fixed to the battery box with bolts. Two support structures are provided between adjacent energy storage batteries. The two side plates of the support structures are attached to the battery boxes of the upper and lower layers of energy storage batteries, respectively, while the flanges are attached to the sides of the battery boxes of the upper and lower layers of energy storage batteries. The two flanges of the support structures are fixed to the sides of the battery boxes of the upper and lower layers of energy storage batteries with bolts.

5. A stacked battery according to claim 4, characterized in that: The back of the stacked battery is provided with a diagonal brace, and the two ends of the diagonal brace are respectively fixed with bolts to the diagonal brace holes of the support structure at different layer positions.

6. A stacked battery according to claim 5, characterized in that: At least two diagonal braces are provided, and the two diagonal braces are arranged in a crisscross manner.

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