Battery pack fixing structure and box type battery system

Abstract

The utility model discloses a battery pack fixing structure, and relates to the technical field of box type battery pack mounting and fixing design. The fixing structure comprises a first limiting piece, a second limiting piece, a third limiting piece and a connecting rod; the plurality of first limiting pieces are oppositely arranged and are matched with each other in a first direction to limit the battery pack; one of the second limiting piece and the third limiting piece is fixedly arranged on the first limiting piece, and the other limiting piece is connected with the limiting piece through the connecting rod and is opposite to the limiting piece, so that the battery pack is limited in a matched manner in the second direction. The battery pack fixing structure disclosed by the utility model can be used for stably fixing the battery pack in the battery box in the front, back, left and right directions, so that the battery pack can be stably fixed and limited, and the possibility of bumping, damaging and losing efficacy in the transportation process of the battery pack is reduced; and moreover, the fixing structure is not affected by the shielding of the battery pack when being mounted, and the operation of fixing the battery pack by a technician by adopting the fixing structure is relatively convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of box-type battery pack installation and fixing design, specifically to a battery pack fixing structure and a box-type battery system. Background Technology

[0002] When the energy storage battery pack is installed into the battery container, its left and right sides can be close to the left wall and internal support of the battery container, or close to the internal support and right wall of the battery container. Since the left and right walls and internal support of the battery container can be observed through the container opening, the energy storage battery pack can be fixed by bolts on the left and right sides inside the battery container.

[0003] However, when installing energy storage battery packs into battery containers, the rear end of the battery pack faces the inside of the battery container. This makes it difficult to install the fixing structure and related battery pack limiting structure from the opening of the battery container, across the already installed battery pack. This also makes it impossible to guarantee the fixing effect of the battery pack from the front and back, increasing the possibility of the battery pack moving around in the front and back of the battery container. This increases the risk of the battery pack failing due to severe vibration and collision during the transportation of the battery container. Utility Model Content

[0004] To address the aforementioned deficiencies in the existing technology, this utility model provides a battery pack fixing structure and a box-type battery system.

[0005] The technical solution of this utility model to solve the above problems is: to provide a battery pack fixing structure, the fixing structure including a first limiting member, a second limiting member, a third limiting member, and a connecting rod; a plurality of first limiting members are arranged opposite to each other to cooperate in limiting the battery pack in a first direction; one of the second limiting member and the third limiting member is fixedly arranged on the first limiting member, and the other limiting member is connected to the first limiting member through the connecting rod and arranged opposite to it to cooperate in limiting the battery pack in a second direction.

[0006] Furthermore, the second limiting member is fixedly disposed on the first limiting member, and the third limiting member is disposed on the connecting rod. The connecting rod is also connected to the second limiting member. The third limiting member cooperates with the second limiting member through the connecting rod to clamp and fix the battery pack in the second direction.

[0007] Furthermore, the first direction and the second direction are configured to be perpendicular to each other in the horizontal plane.

[0008] Furthermore, one end of the connecting rod is inserted into the second limiting member, and the insertion end of the connecting rod is also provided with an outer peripheral thread and at least two limiting nuts provided on the insertion end of the connecting rod. The at least two limiting nuts also cooperate with each other to clamp and lock the second limiting member on the connecting rod.

[0009] Furthermore, the second limiting member has a slot for the connecting rod to be inserted laterally through it. The slot extends to the edge of the second limiting member, and the width of the slot is greater than the diameter of the connecting rod.

[0010] Furthermore, the fixing structure also includes an abutment limiting block, which is fixedly disposed on the connecting rod. The lower end face of the abutment limiting block abuts against the upper end face of the fixed battery pack to limit the parallelism of the connecting rod relative to the first limiting member.

[0011] Furthermore, the third limiting member is fixedly disposed on the abutting limiting block, and the bottom end of the third limiting member extends downward from the side wall of the abutting limiting block opposite to the second limiting member and is disposed below the abutting limiting block.

[0012] Furthermore, the lower end surface of the abutment limiting block is a plane.

[0013] This utility model also provides a box-type battery system, including multiple battery pack fixing structures as described above. The box-type battery system further includes a battery box for accommodating multiple battery packs; multiple mounting brackets equidistantly arranged inside the battery box; multiple battery pack fixing structures in pairs; two battery pack fixing structures in a pair are arranged opposite each other and respectively mounted on one of the mounting brackets to cooperate in limiting and fixing one battery pack.

[0014] Furthermore, the mounting bracket includes multiple longitudinal beams, which are equidistantly arranged, and the multiple longitudinal beams intersect with the first limiting members of the multiple battery pack fixing structures to form a grid structure and support the fixed battery pack.

[0015] Furthermore, a safety gap is provided between the outermost mounting bracket of the plurality of mounting brackets and the wall of the battery box.

[0016] The battery pack fixing structure of this utility model has the following beneficial effects:

[0017] The second limiting member is fixedly mounted on the first limiting member, and the third limiting member is connected to the second limiting member via a connecting rod and is positioned opposite to it. This allows the two first limiting members to clamp and limit the battery pack, which is then inserted into the battery box from the left and right directions. Each first limiting member also has a second limiting member and a third limiting member, which can further limit and clamp the battery pack in the front and back directions. This allows the battery pack to be stably fixed in the battery box in four directions, thereby ensuring that the battery pack can be stably fixed and limited, reducing the possibility of the battery pack being damaged or failing during transportation.

[0018] Moreover, the installation of this fixing structure is not affected by the battery pack itself, and it is relatively convenient for technicians to use this fixing structure to fix the battery pack.

[0019] In addition, technicians can adjust the distance between the third limiting member and the second limiting member by pulling the end of the connecting rod that extends to the second limiting member (the opening of the battery box), without having to put their hands or operating tools inside the battery box to adjust the specific position of the third limiting member, making the operation convenient and simple. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In these drawings, similar reference numerals are used to denote similar elements. The drawings described below are some embodiments of the present invention, but not all embodiments. Other drawings will be readily available to those skilled in the art based on these drawings without any inventive effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the battery pack fixing structure in this embodiment;

[0022] Figure 2 This is a schematic diagram of the overall structure of the box-type battery system in this embodiment;

[0023] Figure 3 for Figure 1 Enlarged view of the local structure at point A;

[0024] 11-First limiting component, 12-Second limiting component, 13-Third limiting component, 14-Connecting rod, 15-Limiting nut, 16-Slot, 17-Abutting limiting block;

[0025] 21-Battery pack fixing structure, 22-Battery box, 23-Mounting bracket, 24-Battery pack. Detailed Implementation

[0026] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0027] Please see Figure 1 ,by Figure 1 Taking the direction shown as an example, a battery pack fixing structure of a specific embodiment of this utility model includes a first limiting member 11, a second limiting member 12, a third limiting member 13, and a connecting rod 14; wherein, the first limiting member 11 is a long strip plate with an L-shaped cross-section, the second limiting member 12 is a strip plate that is horizontally welded and fixed at the left end of the first limiting member 11, the third limiting member 13 is a large-angle "V" shaped plate, the third limiting member 13 is rotatably disposed at the right end of the connecting rod 14, and the left end of the connecting rod 14 is inserted and fixed to the second limiting member 12.

[0028] For this, please refer to Figure 2 ,by Figure 2 Taking a visible battery pack as an example, a first limiting member 11 is provided on each of the left and right sides of the battery pack. The two first limiting members 11 are arranged opposite to each other. The edges of the left and right sides of the battery pack extend into a first limiting member 11 and are fixedly connected to the corresponding first limiting member 11, thereby being fixed in the left and right direction.

[0029] In this embodiment, the left-right direction is the first direction; however, in other embodiments, the first direction may also be the front-back direction or other fixed limiting directions known to those skilled in the art.

[0030] In addition, please combine Figure 1 and Figure 2 ,by Figure 2 Taking the left edge of the battery pack as an example, after the left edge of the battery pack is fixedly connected to the first fixing member, the left edge of the battery pack is close to the horizontal plate part of the first limiting member 11 on the left. Then, the technician inserts a connecting rod 14 into the battery box 22 until the third limiting member 13 hooks the rear end of the left edge of the battery pack. Then the front end of the connecting rod 14 is inserted into the second limiting member 12 and fixed, so that the left edge of the battery pack is clamped and fixed in the front-back direction by the cooperation of the second limiting member 12 and the third limiting member 13.

[0031] In this embodiment, the front-back direction is the second direction; however, in other embodiments, the second direction may also be the left-right direction or other fixed limiting directions known to those skilled in the art.

[0032] Further, please refer to Figure 3 In this embodiment, the end of the connecting rod 14 is fixedly connected to the second limiting member 12 by a nut for limiting and fixing; specifically, taking... Figure 3 Taking the indicated orientation as an example, although not shown in the figure, it can be seen that the left end of the connecting rod 14 is provided with an external circumferential thread, and two limiting nuts 15 are threadedly connected to the left end of the connecting rod 14. A slot 16 is horizontally opened on the second limiting member 12, and the slot 16 extends to the right front edge of the second limiting member 12 and forms an opening. The width of the slot 16 is also greater than the diameter of the connecting rod 14. In this way, the connecting rod 14 can be pushed horizontally into the slot 16, so that the two limiting nuts 15 can easily clamp the second limiting member 12 one in front and one behind, thereby locking the third limiting member 13 and keeping the distance between the third limiting member 13 and the second limiting member 12 stable and unchanged.

[0033] Additionally, it should be noted that, in this embodiment, provided that the length of the connecting rod 14 is sufficient, technicians can adjust the two limiting nuts 15 to different positions on the connecting rod 14 to adapt the distance between the second limiting member 12 and the third limiting member 13 to the front and rear length dimensions of the battery packs of different sizes.

[0034] It should be noted that the above-mentioned battery pack fixing structure 21 is applicable to fixing the left edge of the battery pack when facing the right edge of the battery pack.

[0035] Further, please refer to Figure 1 ,by Figure 1 Taking the orientation shown as an example, the right end of the connecting rod 14 is rotatably provided with an abutment limiting block 17, which is a wedge-shaped block. The third limiting member 13 is welded to the right rear side of the abutment limiting block 17. The bottom end of the third limiting member 13 extends downward to a position below the lower end face of the abutment limiting block 17, thereby forming a retaining edge structure at the right rear side of the abutment limiting block 17 to cooperate with the second limiting member 12 to limit the aforementioned front and rear directions.

[0036] Furthermore, the lower end face of the abutment limit block 17 is a plane, and the distance from the lower end face of the abutment limit block 17 to the connecting rod 14 is equivalent to the vertical distance from the center of the slot 16 to the lower end face of the abutment limit block 17.

[0037] Please see Figure 2The present invention further includes a box-type battery system, comprising multiple battery pack fixing structures 21 as described in the preceding embodiments; a battery box 22 for accommodating multiple battery packs; multiple mounting brackets 23 equidistantly arranged within the battery box 22; the multiple battery pack fixing structures 21 being arranged in pairs; the two battery pack fixing structures 21 in a pair being arranged opposite each other and respectively mounted on one of the mounting brackets 23 to cooperate in limiting and fixing one of the battery packs.

[0038] Specifically, with Figure 2 Taking the orientation shown as an example, the mounting brackets 23 are equidistantly arranged in the battery box 22 along the left and right directions. Each mounting bracket 23 includes multiple longitudinal beams, which are also equidistantly arranged in the front and back directions. The upper end of each longitudinal beam is welded and fixed to the top wall of the battery box 22, and the lower end is welded and fixed to the bottom of the battery box 22. Multiple battery pack fixing structures 21 are installed on each mounting bracket 23, and the multiple battery pack fixing structures 21 on each mounting bracket 23 are equidistantly arranged in the height direction.

[0039] In this regard, multiple longitudinal beams of a mounting bracket 23 can intersect with multiple battery pack fixing structures 21 correspondingly mounted on the mounting bracket 23 to form a grid support structure to support the battery pack.

[0040] It should be noted that, in this embodiment, for ease of installation, please refer to [link / reference]. Figure 1 and Figure 2 A first limiting member 11 is horizontally fixedly installed on the corresponding mounting bracket 23 in the front-to-back direction. The front end and rear end of the first limiting member 11 are both welded with second limiting members 12. A connecting rod 14 is fixedly installed at each of the two second limiting members 12, and a third limiting member 13 is provided at the end of each of the two connecting rods 14 facing the center of the battery box 22.

[0041] Thus, referring to the fixing method in the aforementioned embodiment, a first limiting member 11 can simultaneously fix the edges of two battery packs for fixed installation, and a battery pack fixing structure 21 on each of the left and right sides can simultaneously fix two battery packs.

[0042] Of course, in other embodiments, the battery pack fixing structure 21 on each side can fix only one battery pack.

[0043] Additionally, please see Figure 2 To protect the battery pack, both the leftmost and rightmost mounting brackets 23 have safety gaps between them and the wall of the battery box 22.

[0044] Anything not mentioned above applies to existing technologies.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A battery pack fixing structure, characterized in that, The fixing structure includes a first limiting member (11), a second limiting member (12), a third limiting member (13), and a connecting rod (14); multiple first limiting members (11) are arranged opposite to each other to limit the battery pack in a first direction; one of the second limiting member (12) and the third limiting member (13) is fixedly arranged on the first limiting member (11), and the other limiting member is connected to the first limiting member through the connecting rod (14) and arranged opposite to it to limit the battery pack in a second direction.

2. The battery pack fixing structure as described in claim 1, characterized in that, The second limiting member (12) is fixedly disposed on the first limiting member (11), and the third limiting member (13) is disposed on the connecting rod (14). The connecting rod (14) is also connected to the second limiting member (12). The third limiting member (13) cooperates with the second limiting member (12) through the connecting rod (14) to clamp and fix the battery pack in the second direction.

3. The battery pack fixing structure as described in claim 1, characterized in that, The first direction and the second direction are configured to be perpendicular to each other in the horizontal plane.

4. The battery pack fixing structure as described in claim 1 or 2, characterized in that, One end of the connecting rod (14) is inserted into the second limiting member (12). The insertion end of the connecting rod (14) is also provided with an outer peripheral thread and at least two limiting nuts (15) provided on the insertion end of the connecting rod (14). The at least two limiting nuts (15) also cooperate with each other to clamp and lock the second limiting member (12) on the connecting rod (14).

5. The battery pack fixing structure as described in claim 4, characterized in that, The second limiting member (12) has a slot (16) for the connecting rod (14) to be inserted laterally. The slot (16) extends to the edge of the second limiting member (12), and the width of the slot (16) is greater than the diameter of the connecting rod (14).

6. The battery pack fixing structure as described in claim 1, characterized in that, The fixing structure also includes an abutment limiting block (17), which is fixedly disposed on the connecting rod (14). The lower end face of the abutment limiting block (17) abuts against the upper end face of the fixed battery pack to limit the parallelism of the connecting rod (14) relative to the first limiting member (11).

7. The battery pack fixing structure as described in claim 6, characterized in that, The third limiting member (13) is fixedly disposed on the abutting limiting block (17), and the bottom end of the third limiting member (13) extends downward from the side wall of the abutting limiting block (17) away from the second limiting member (12) to the bottom of the abutting limiting block (17).

8. The battery pack fixing structure as described in claim 7, characterized in that, The lower end face of the abutment limiting block (17) is a plane.

9. A box-type battery system comprising a plurality of battery pack fixing structures (21) according to any one of claims 1-8, characterized in that, The box-type battery system also includes a battery box (22) for accommodating multiple battery packs; Multiple mounting brackets (23) are equidistantly arranged inside the battery box (22); multiple battery pack fixing structures (21) are arranged in pairs; the two battery pack fixing structures (21) in a pair are arranged opposite each other and are respectively installed on one of the mounting brackets (23) to cooperate with each other to limit and fix one of the battery packs.

10. The box-type battery system as described in claim 9, characterized in that, The mounting bracket (23) includes multiple longitudinal beams, which are equidistantly arranged, and the multiple longitudinal beams intersect with the first limiting member (11) of the multiple battery pack fixing structure (21) to form a grid structure and support the fixed battery pack.

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