Battery cluster frame fixing structure

Abstract

The utility model provides a battery cluster frame fixing structure which comprises at least two supporting frames, a base and positioning bolts, the number of the supporting frames is at least two, the supporting frames are L-shaped frames, each supporting frame comprises a side frame and a bottom frame which are fixedly connected with each other, and a limiting bent plate is formed on each side frame; the base is detachably connected to the bottom of a battery pack, the bottom frame is used for supporting the base, and the two side frames are located on the two opposite sides of the base respectively and used for limiting the base. When the battery packs are fixedly connected through the positioning bolts, the battery packs can be fixed only by fixing one sides of the battery packs through the bolts, so that the assembly complexity is simplified, and the battery packs are convenient to use; and the end part of the battery pack positioned at the limiting bent plate can be in limiting connection with the limiting bent plate in a relatively close manner, so that the mounting space of one end of the battery pack is saved, and the use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pack fixing, in particular to a battery cluster frame fixing structure. Background Art

[0002] In existing technology, battery packs are typically secured in battery cluster racks to form energy storage containers. Currently, energy storage containers feature high capacity and high voltage. The ease of installing battery packs in the battery cluster racks during production not only impacts production costs on the supply chain side, but also the overall efficiency of container integration.

[0003] Existing technologies for securing subracks within containers primarily fall into two categories: First, bolting the front of the subrack with bolts while leaving the ends loose. This method results in significant wobbling during transport, which can easily lead to problems. Second, bolting the front of the subrack with bolts and using an "X"-shaped bracket at the end to hold it down. This method is currently more common in the industry, but due to limitations in sheet metal processing, the "X"-shaped bracket is often designed to be large, occupying significant space at the end of the battery pack. Furthermore, both methods require more space in the X direction to allow for tool adjustment during insertion to prevent skewing.

[0004] The utility model with publication number CN220382240U proposes a battery cluster rack, which includes a frame assembly and a tray assembly. At least two frame assemblies are arranged at intervals, and several tray assemblies are detachably arranged between two adjacent frame assemblies, and several tray assemblies are arranged at intervals along the vertical direction. The battery pack is placed on the tray assembly, and a cooling channel is provided on the side where the tray assembly abuts the battery pack. However, after the battery pack is placed in the above-mentioned battery cluster rack, the battery pack cannot be stably fixed by fixing the battery pack with a single-sided bolt. As a result, the above-mentioned battery cluster rack still needs to fix the battery pack at both ends when fixing the placed battery pack. The fixing is cumbersome and requires a large installation area. Therefore, this solution specially proposes a battery cluster rack fixing structure to solve the above-mentioned problem. Utility Model Content

[0005] In light of this, the present invention proposes a battery cluster rack fixing structure. The battery pack is connected via a base, which is limited by side frames and a limiting bend plate. Positioning bolts are connected to the ends of the base to complete the battery pack's fixed connection. During the battery pack fixing process, only one side of the battery pack needs to be bolted to complete the fixation, simplifying assembly and facilitating ease of use. When assembling two or more battery packs, the ends of the battery packs located at the limiting bend plate can be connected to the limiting bend plate in a relatively close manner, saving installation space at one end of the battery pack and facilitating use.

[0006] The technical solution of the present invention is implemented as follows: The present invention provides a battery cluster frame fixing structure, including a support frame, a base and positioning bolts, wherein:

[0007] The number of the support frames is at least two, and the support frames are L-shaped frames, the support frames comprising side frames and a bottom frame fixedly connected to each other, and a limited bent plate is formed on the side frames;

[0008] A base is detachably connected to the bottom of the battery pack, and the bottom frame is used to support the base. The two side frames are respectively located on opposite sides of the base and are used to limit the base. The limiting bent plate is used to limit the base from separating from the bottom frame in the height direction of the support frame.

[0009] A positioning bolt is used to position the relative position between the end of the base away from the limiting bent plate and the base frame.

[0010] On the basis of the above technical solution, preferably, a bolt positioning hole is opened at one end of the base, a mounting hole is opened on the base frame, and the positioning bolt passes through the mounting hole and is threadedly connected to the bolt positioning hole.

[0011] On the basis of the above technical solution, preferably, the side frame is formed into the limiting bent plate by bending sheet metal.

[0012] On the basis of the above technical solution, preferably, both ends of the limiting bent plate are in conflict with the two bases respectively, and both end walls of the limiting bent plate are arc-shaped walls.

[0013] Based on the above technical solution, preferably, the base includes a lower protrusion and an upper protrusion, and the upper protrusion is located above the lower protrusion, the upper protrusion is connected to the battery pack by bolts, and the lower protrusion is supported on the base frame and conflicts with the limit bend plate.

[0014] On the basis of the above technical solution, preferably, a plurality of guide protrusions are formed on the top of the base frame, and a guide groove is provided at the bottom of the lower protrusion, the guide groove is connected to the two ends of the lower protrusion, and the guide protrusion is inserted into the inside of the guide groove and fits with the guide groove wall.

[0015] On the basis of the above technical solution, preferably, the base frame forms the guide protrusion by sheet metal stamping, the side walls of the guide protrusion are arc-shaped walls, and the groove walls at both ends of the guide groove are inclined walls.

[0016] On the basis of the above technical solution, preferably, it further includes a support stand, wherein:

[0017] The support stand is a rectangular frame, which is arranged between the lower protrusion and the upper protrusion and is fixedly connected to the lower protrusion and the upper protrusion.

[0018] On the basis of the above technical solution, preferably, it further includes a column and a connecting bracket, wherein,

[0019] There are multiple columns, and each column is a hollow cylinder;

[0020] The connecting bracket is an L-shaped frame, and two mutually perpendicular side surfaces of the connecting bracket are fixedly connected to the column and the base frame respectively.

[0021] On the basis of the above technical solution, preferably, foam is provided at the bottom of the limiting bending plate.

[0022] The battery cluster rack fixing structure of the present invention has the following advantages over the prior art:

[0023] (1) The battery pack is connected through the base, the base is limited by the side frame and the limit bend plate, and the battery pack is fixed and connected to the end of the base through the positioning bolt. During the period of fixing the battery pack, the battery cluster rack of the present application only needs to be bolted to one side of the battery pack to complete the fixing of the battery pack, which simplifies the assembly complexity and is convenient to use. When assembling more than two battery packs, the end of the battery pack located at the limit bend plate can be connected to the limit bend plate in a manner that is relatively close to each other, saving the installation space at one end of the battery pack and facilitating use.

[0024] (2) Specifically, when the base carrying the battery pack is inserted from one end of the support frame, the guide protrusion can be smoothly inserted into the guide groove under the constraints of the two side frames. At this time, the guide protrusion and the side frames play a guiding role in the insertion position of the base, which is used to increase the stability of the base insertion position. At the same time, after the base is positioned by the positioning bolts, the guide protrusion simultaneously starts the limiting function, which is used to increase the connection stability of the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a front perspective view of the battery cluster frame fixing structure of the present invention;

[0027] Figure 2It is a right side perspective view of the battery cluster frame fixing structure of the present invention;

[0028] Figure 3 The battery cluster frame fixing structure of the utility model Figure 2 An enlarged schematic diagram of point A is shown;

[0029] Figure 4 This is a schematic diagram of the connection between the base of the battery cluster rack fixing structure and the battery pack of the present invention;

[0030] Figure 5 The battery cluster frame fixing structure of the utility model Figure 4 a bottom perspective view of the structure shown;

[0031] Figure 6 The battery cluster frame fixing structure of the utility model Figure 5 An enlarged schematic diagram of point B is shown;

[0032] Figure 7 This is a schematic diagram of the connection between the support frame and the column of the battery cluster rack fixing structure of the present invention;

[0033] Figure 8 It is a three-dimensional schematic diagram of the support frame structure of the battery cluster frame fixing structure of the present invention. DETAILED DESCRIPTION

[0034] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] like Figures 1 to 8 As shown, the battery cluster frame fixing structure of the present invention includes a support frame 1, a base 2 and a positioning bolt 3, wherein the number of the support frames 1 is at least two, and the support frame 1 is an L-shaped frame, the support frame 1 includes a side frame 11 and a base frame 12 fixedly connected to each other, and a limiting bent plate 111 is formed on the side frame 11; the base 2 is detachably connected to the bottom of the battery pack 10, and the base frame 12 is used to support the base 2, the two side frames 11 are respectively located on opposite sides of the base 2, and are used to limit the base 2, and the limiting bent plate 111 is used to limit the base 2 from being separated from the base frame 12 in the height direction of the support frame 1; the positioning bolt 3 is used to position the relative position between the end of the base 2 away from the limiting bent plate 111 and the base frame 12.

[0036] Figure 1 The Z direction is the height direction of the support frame 1 .

[0037] In the specific implementation, the support frame 1 completes the support processing of the battery pack 10 in the vertical direction through the supporting base 2. Specifically, when connecting the battery pack 10, the base 2 is connected to the battery pack 10 in advance, and then the battery pack 10 is plugged into the two support frames 1 from one end of the support frame 1. At this time, the base frame 12 supports the base 2 at the bottom to support and position the battery pack 10, and at this time, the side frames 11 block the two sides of the base 2 to limit the position of the base 2 so that the base 2 can only move in the length direction of the base frame 12, thereby realizing the insertion of the base frame 12. After the base frame 12 is inserted in the ideal position, the base 2 is naturally inserted between the base frame 12 and the limiting bent plate 111, and the position of one end of the base 2 relative to the support frame 1 is positioned by the positioning bolt 3, and at this time the limiting bent plate 111 is located at the end of the base 2 away from the positioning bolt 3, limiting the base 2 in the height direction of the base 2, thereby completing the fixed connection processing of the battery pack 10. The battery cluster rack of the present application only requires bolting one side of the battery pack 10 to secure the battery pack 10, simplifying assembly and facilitating ease of use. When assembling two or more battery packs 10, the ends of the battery packs 10 located at the stop bend 111 can be closely connected to the stop bend 111, saving installation space at one end of the battery pack 10 and facilitating ease of use.

[0038] As a preferred embodiment, a bolt positioning hole 211 is provided at one end of the base 2 , a mounting hole 121 is provided on the base frame 12 , and the positioning bolt 3 passes through the mounting hole 121 and is threadedly connected to the bolt positioning hole 211 .

[0039] As a preferred embodiment, the side frame 11 is formed into a limiting bent plate 111 by bending sheet metal.

[0040] This design enables the limiting bent plate 111 and the side frame 11 to be integrally formed, which facilitates modification of the limiting bent plate 111 and increases the installation stability of the limiting bent plate 111 .

[0041] As a preferred embodiment, both ends of the limiting bent plate 111 respectively contact the two bases 2 , and both end walls of the limiting bent plate 111 are arc-shaped walls.

[0042] With this design, during the process of placing the base 2, even if there is an error in the height between the base 2 and the base frame 12, the base 2 can still be pressed down under the action of the arc wall of the limiting bent plate 111, so that the base 2 is supported in the correct position.

[0043] As a preferred embodiment, the base 2 includes a lower protrusion 21 and an upper protrusion 22, and the upper protrusion 22 is located above the lower protrusion 21. The upper protrusion 22 is connected to the battery pack 10 by bolts. The lower protrusion 21 is supported on the base frame 12 and conflicts with the limit bend plate 111.

[0044] As a preferred embodiment, a plurality of guide protrusions 4 are formed on the top of the base frame 12, and a guide groove 212 is provided at the bottom of the lower protrusion 21. The guide groove 212 is connected to the two ends of the lower protrusion 21, and the guide protrusion 4 is inserted into the inside of the guide groove 212 and fits with the groove wall of the guide groove 212.

[0045] Specifically, when inserting the base 2 carrying the battery pack 10 from one end of the support frame 1, the guide protrusion 4 can be smoothly inserted into the guide groove 212 under the restraint of the two side frames 11. At this time, the guide protrusion 4 and the side frames 11 guide the insertion position of the base 2, thereby increasing the stability of the insertion position of the base 2. At the same time, after the base 2 is positioned by the positioning bolt 3, the guide protrusion 4 simultaneously activates the limit function to increase the connection stability of the base 2.

[0046] As a preferred embodiment, the guide protrusion 4 is formed on the chassis 12 by sheet metal stamping, the side walls of the guide protrusion 4 are arc-shaped walls, and the groove walls at both ends of the guide groove 212 are inclined walls.

[0047] In a specific implementation, when the chassis 12 is produced, the guide protrusion 4 is formed into an integral sheet metal. This design saves the installation steps of the guide protrusion 4 and increases the structural stability of the guide protrusion 4.

[0048] By setting the groove walls at both ends of the guide groove 212 as inclined walls, when the base 2 is inserted into the support frame 1, even if there is a misalignment, the base 2 can still be guided to the correct position and inserted under the action of the groove walls at both ends of the guide groove 212.

[0049] In the existing battery pack installation technology, the battery cluster structure does not have the guide structure of the above-mentioned guide protrusion 4. When fixing the battery pack to the battery cluster structure, the designed structure should reserve more space for installing the battery pack (including tool space for correction). Under the action of the above-mentioned guide protrusion 4, the battery pack will not be deviated, and the space on both sides of the battery pack can be appropriately reduced during the design.

[0050] As a preferred embodiment, it further includes a support stand 5 , wherein the support stand 5 is a rectangular frame, disposed between the lower protrusion 21 and the upper protrusion 22 , and fixedly connected to the lower protrusion 21 and the upper protrusion 22 .

[0051] In a specific implementation, the support stand 5 is connected to the upper protrusion 21 and the lower protrusion 22 by welding, and the structural strength of the base 2 is increased under the support of the support stand 5 .

[0052] As a preferred embodiment, it also includes a column 61 and a connecting bracket 62, wherein the number of the columns 61 is multiple, and the columns 61 are hollow cylinders; the connecting bracket 62 is an L-shaped frame, and the two perpendicular side surfaces of the connecting bracket 62 are fixedly connected to the columns 61 and the base frame 12 respectively.

[0053] In a specific implementation, the column 61 is used to support the support frame 1 by connecting the bracket 62 .

[0054] It should be noted that a plurality of support frames 1 may be connected to the column 61 for connecting a plurality of battery packs 10 .

[0055] As a preferred embodiment, foam 7 is provided at the bottom of the limiting bent plate 111 .

[0056] This design is used to protect the base 2 when the limiting bent plate 111 abuts against the base 2, and the foam 7 plays a buffering role.

[0057] The working principle of this utility model is introduced below:

[0058] Specifically, when connecting the battery pack 10, the upper protrusion 22 is pre-bolted to the battery pack 10. The battery pack 10 is then inserted from the end of the support frame 1 between the two support frames 1. The bottom frame 12 supports the base 2. The guide protrusion 4 is inserted into the guide groove 212 to limit the sliding direction of the battery pack 10, pushing the battery pack 10 to slide completely onto the support frame 1. At this time, the lower protrusion 21 is inserted between the limiting bend 111 and the bottom frame 12. The limiting bend 111 limits the base 2 in the height direction of the support frame 1, thereby preventing the end of the base 2 from separating from the bottom frame 12. The bottom frame 12 and the lower protrusion 21 are connected by the positioning bolt 3, thereby completing the connection and fixing of the other end of the base 2. By fixing the end of the base 2, the entire battery pack 10 can be fixed. One limiting bend 111 can be used for crimping at least two bases 2. Multiple support frames 1 are provided on a column 61 for connecting multiple battery packs 10.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A battery cluster rack fixing structure, characterized by: It comprises a support frame (1), a base (2) and a positioning bolt (3), wherein: The number of the support frames (1) is at least two, and the support frames (1) are L-shaped frames. The support frames (1) include side frames (11) and a bottom frame (12) fixedly connected to each other, and a limited bending plate (111) is formed on the side frames (11); A base (2) is detachably connected to the bottom of the battery pack (10), and the bottom frame (12) is used to support the base (2); the two side frames (11) are respectively located on opposite sides of the base (2) and are used to limit the base (2); the limiting bent plate (111) is used to limit the base (2) from separating from the bottom frame (12) in the height direction of the support frame (1); A positioning bolt (3) is used to position the relative position between the end of the base (2) away from the limiting bent plate (111) and the base frame (12).

2. The battery cluster rack fixing structure according to claim 1, wherein: A bolt positioning hole (211) is provided at one end of the base (2), a mounting hole (121) is provided on the base frame (12), and the positioning bolt (3) passes through the mounting hole (121) and is threadedly connected to the bolt positioning hole (211).

3. The battery cluster rack fixing structure according to claim 1, wherein: The side frame (11) is formed into the limiting bent plate (111) by bending sheet metal.

4. The battery cluster rack fixing structure according to claim 1, wherein: The two ends of the limiting bent plate (111) respectively contact the two bases (2), and the two end walls of the limiting bent plate (111) are arc-shaped walls.

5. The battery cluster rack fixing structure according to claim 1, wherein: The base (2) includes a lower protrusion (21) and an upper protrusion (22), and the upper protrusion (22) is located above the lower protrusion (21). The upper protrusion (22) is connected to the battery pack (10) via bolts. The lower protrusion (21) is supported on the base frame (12) and contacts the limiting bent plate (111).

6. The battery cluster rack fixing structure according to claim 5, characterized in that: A plurality of guide protrusions (4) are formed on the top of the base frame (12), and a guide groove (212) is provided at the bottom of the lower protrusion (21). The guide groove (212) is connected to both ends of the lower protrusion (21), and the guide protrusion (4) is inserted into the guide groove (212) and fits with the groove wall of the guide groove (212).

7. The battery cluster rack fixing structure according to claim 6, characterized in that: The guide protrusion (4) is formed on the base frame (12) by sheet metal stamping, the side wall of the guide protrusion (4) is an arc-shaped wall, and the groove walls at both ends of the guide groove (212) are inclined walls.

8. The battery cluster rack fixing structure according to claim 5, characterized in that: Also included is a support stand (5), wherein: The support stand (5) is a rectangular frame, which is arranged between the lower protrusion (21) and the upper protrusion (22) and is fixedly connected to the lower protrusion (21) and the upper protrusion (22).

9. The battery cluster rack fixing structure according to claim 1, wherein: It also includes a column (61) and a connecting bracket (62), wherein: There are multiple columns (61), and each column (61) is a hollow cylinder; The connecting bracket (62) is an L-shaped frame, and two mutually perpendicular side surfaces of the connecting bracket (62) are fixedly connected to the upright column (61) and the base frame (12) respectively.

10. The battery cluster rack fixing structure according to claim 1, wherein: The bottom of the limiting bent plate (111) is provided with foam (7).

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