Power battery box assembly

Abstract

The utility model discloses a power battery box assembly which comprises a battery module and further comprises a first frame body assembly used for installing the battery module, a second frame body assembly used for placing the added battery module, a connecting piece used for connecting the first frame body assembly and the second frame body assembly, and a fixing bolt. The fixing bolt is used for locking the connecting piece and the first frame body assembly. By means of the design of the connecting piece, the fixing bolt, the first frame body assembly and the second frame body assembly, when the endurance of the electric heavy truck needs to be increased, the second frame can be additionally arranged, an inserting block at the top end of the second frame is inserted into a first inserting groove, and then the fixing bolt passes through a first threaded groove; the battery module is inserted into the circular through groove of the inserting block, so that the inserting block is fixedly connected with the first frame, the added battery module is placed into the second frame, and the endurance of the electric heavy truck is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of truck battery replacement, and in particular to a power battery box assembly. Background Art

[0002] The frame power battery assembly is a new type of battery component. Compared with traditional battery components, its biggest advantage is that it can be quickly disassembled and assembled. This feature makes the frame battery assembly an important part of heavy-duty truck battery replacement technology. Traditional electric heavy-duty trucks use an integral battery pack. Once the battery pack fails or is low on power, the entire battery pack needs to be replaced, which requires a long parking and replacement time. This will have an adverse effect on logistics and transportation efficiency. The use of a frame battery assembly can divide the battery pack into multiple modules, making the battery pack more flexible and can be partially replaced as needed, thereby shortening the replacement time, improving battery replacement efficiency, and reducing transportation costs.

[0003] However, the frame of the frame power battery assembly is made of welded metal tubes, so the maximum number of battery modules placed on the frame is fixed. When the battery life of the electric heavy truck needs to be increased, the additional battery modules cannot be placed in the frame, making the placement of the additional battery modules inconvenient. Utility Model Content

[0004] The purpose of the present utility model is to provide a power battery box assembly to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a power battery box assembly, including a battery module, the battery module being used to power a truck, and further comprising:

[0006] a first frame assembly, the first frame assembly being used for mounting a battery module, the battery module being disposed inside the first frame assembly;

[0007] a second frame assembly, the second frame assembly being used to place the added battery module, the second frame assembly being arranged at the bottom end of the battery module;

[0008] A connecting member, the connecting member is provided at the top end of the second frame assembly, and the connecting member is used to connect the first frame assembly and the second frame assembly;

[0009] A fixing bolt is arranged on the top of the connecting member and is used to lock the connecting member and the first frame assembly.

[0010] Preferably, the first frame assembly includes a first frame, a first slot for inserting the connecting member is provided at the bottom end of the first frame, and first thread grooves are respectively provided at both ends of the inner wall of the first slot.

[0011] Preferably, the first thread groove is threadably connected to the fixing bolt, and the vertical cross-section of the first thread groove and the first slot is cross-shaped.

[0012] Preferably, the second frame assembly includes a second frame, the connecting member includes a plug-in block, the top end of the second frame is fixedly connected to the bottom end of the plug-in block, the top of the plug-in block is provided with a circular through groove for inserting a fixing bolt, the top end of the second frame is provided with a buffer for reducing vibration, and the interior of the second frame is provided with a mounting block.

[0013] Preferably, a second slot for inserting adjacent plug-in blocks is provided at the bottom end of the second frame, and second thread grooves are respectively provided at both ends of the inner wall of the second slot. The second thread groove is threadedly connected to the fixing bolt, and the vertical section of the second slot and the second thread groove is cross-shaped.

[0014] Preferably, the buffer member includes a buffer bar, and the bottom end of the buffer bar is fixedly connected to the top end of the second frame.

[0015] Preferably, a water cooling unit for cooling the battery module is provided inside the first frame, and a low-voltage control box and a high-voltage distribution box are provided inside the first frame.

[0016] The technical effects and advantages of this utility model are:

[0017] The utility model utilizes the design of connecting parts, fixing bolts, a first frame assembly and a second frame assembly. When it is necessary to increase the range of an electric heavy-duty truck, a second frame can be added. The plug-in block at the top of the second frame is inserted into the first slot, and the fixing bolt is passed through the first threaded groove and inserted into the circular through groove of the plug-in block, thereby fixing the plug-in block to the first frame. The added battery module is placed inside the second frame, thereby increasing the range of the electric heavy-duty truck. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the first frame component of the present invention.

[0020] Figure 3 For this utility model Figure 2 A is a schematic diagram of the enlarged structure.

[0021] Figure 4 This is a first schematic diagram of the three-dimensional structure of the second frame assembly of the present invention.

[0022] Figure 5 For this utility model Figure 4 Middle B is a schematic diagram of the enlarged structure.

[0023] Figure 6 This is the second schematic diagram of the three-dimensional structure of the second frame assembly of the present invention.

[0024] Figure 7 For this utility model Figure 6 Middle C is a schematic diagram of the enlarged structure.

[0025] Figure 8 It is a schematic cross-sectional view of the connection between the first frame component and the second frame component of the present invention.

[0026] In the figure: 1. Battery module; 2. Water cooling unit; 3. Low-voltage control box; 4. High-voltage distribution box; 5. First frame assembly; 51. First frame; 52. First slot; 53. First threaded groove; 6. Second frame assembly; 61. Second frame; 62. Mounting block; 63. Plug-in block; 64. Buffer strip; 65. Second slot; 66. Second threaded groove; 7. Fixing bolt. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in 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.

[0028] The utility model provides Figure 1-8 The power battery box assembly shown includes a battery module 1, which is used to power a truck, and further includes:

[0029] A first frame assembly 5 is used to install the battery module 1. The battery module 1 is arranged inside the first frame assembly 5;

[0030] A second frame assembly 6 is used to place the added battery module 1. The second frame assembly 6 is arranged at the bottom end of the battery module 1;

[0031] A connecting member is provided at the top of the second frame assembly 6 and is used to connect the first frame assembly 5 and the second frame assembly 6;

[0032] The fixing bolt 7 is arranged on the top of the connecting member and is used to lock the connecting member and the first frame assembly 5.

[0033] Specifically, the first frame assembly 5 includes a first frame 51, and a first slot 52 for inserting a connecting piece is provided at the bottom end of the first frame 51. First thread grooves 53 are respectively provided at both ends of the inner wall of the first slot 52. The first thread groove 53 is threadedly connected to the fixing bolt 7. The vertical cross-section of the first thread groove 53 and the first slot 52 is a cross shape. A water cooling unit 2 for cooling the battery module 1 is provided inside the first frame 51, and a low-voltage control box 3 and a high-voltage distribution box 4 are provided inside the first frame 51.

[0034] Furthermore, the battery module 1, the water cooling unit 2, the low-voltage control box 3 and the high-voltage distribution box 4 are components of the existing electric heavy-duty truck power battery box assembly. The battery module 1, the low-voltage control box 3, the high-voltage distribution box 4 and the battery module 1 are electrically connected by wires, which is an existing technical means. The water cooling unit 2 is connected by pipes, which is an existing technical means. The first frame assembly 5 is used to place the battery module 1, the water cooling unit 2, the low-voltage control box 3 and the high-voltage distribution box 4. The second frame assembly 6 is used to place the additional battery module 1. The first frame assembly 5 and the second frame assembly 6 are both made of 700L high-strength steel. The outside of the first frame assembly 5 and the second frame assembly 6 are both provided with an outer skin to cover the second frame assembly 6 and the second frame assembly 6. The water cooling unit 2, the low-voltage control box 3 and the high-voltage distribution box 4 are placed on the top of the first frame 51, and the bottom of the first frame 51 The battery module 1 is placed, and a plate identical to the mounting block 62 is welded to the bottom of the first frame 51 for placing the battery module 1. The plate is fixed to the battery module 1 by bolts. Four first slots 52 are provided, which are respectively provided at the four corners of the bottom end of the first frame 51. The number of first thread grooves 53 provided corresponds to the first slots 52. The threads on the inner wall of the first thread groove 53 are engaged with the threads on the outer wall of the fixing bolt 7. The first thread grooves 53 provided at both ends of the first slot 52, the first thread groove 53 at one end passes through the outer wall of the first frame 51, and the first thread groove 53 at the other end is inside the first frame 51, so that when the fixing bolt 7 is threadedly connected with the first thread groove 53, the fixing bolt 7 is inserted into the circular through groove of the plug-in block 63, so that the plug-in block 63 cannot move, thereby ensuring the stability of the connection between the plug-in block 63 and the first frame 51 by the fixing bolt 7.

[0035] Specifically, the second frame assembly 6 includes a second frame 61, and the connecting part includes a plug-in block 63. The top of the second frame 61 is fixedly connected to the bottom end of the plug-in block 63. The top of the plug-in block 63 is provided with a circular through groove for inserting the fixing bolt 7. The top of the second frame 61 is provided with a buffer for reducing vibration. The interior of the second frame 61 is provided with a mounting block 62. The bottom end of the second frame 61 is provided with a second slot 65 for inserting adjacent plug-in blocks 63. Second thread grooves 66 are respectively provided at both ends of the inner wall of the second slot 65. The second thread groove 66 is threadedly connected to the fixing bolt 7. The vertical cross-section of the second slot 65 and the second thread groove 66 is a cross. The buffer part includes a buffer bar 64. The bottom end of the buffer bar 64 is fixedly connected to the top of the second frame 61.

[0036] Furthermore, the second frame 61 is only used to place the additional battery modules 1. Multiple second frames 61 can be set. By adding multiple second frames 61, the addition of multiple battery modules 1 is achieved. The bottom end of the second frame 61 at the bottom is installed with the mounting position of the electric heavy truck by bolts or welding. By removing the fixing bolts 7 and moving the first frame 51 away from the second frame 61, the number of corresponding second frames 61 is increased or decreased, thereby achieving the increase or decrease of the overall number of battery modules 1, thereby making the addition of the number of battery modules 1 more free and convenient. The second frame 61 is inserted into the first slot 52 through the plug-in block 63, and the fixing bolt 7 is inserted into the circular through groove of the plug-in block 63 to install the first frame 51 and the second frame 61. The adjacent second frames 61 are connected through the plug-in block 63 of the bottom second frame 61. Insert into the second slot 65 of the top second frame 61, and then insert the fixing bolt 7 into the second thread groove 66 and the circular through groove of the bottom plug-in block 63 to perform a stable connection between adjacent second frames 61. The second slot 65 is the same as the first slot 52 in size, position and number, and the second thread groove 66 is the same as the first thread groove 53 in size, position and number. The buffer strip 64 is made of rubber strip and is fixed to the second frame 61 by bonding. When the first frame 51 and the second frame 61 or the adjacent second frame 61 shake, the buffer strip 64 can be squeezed to play a buffering role, reducing the mutual collision between the first frame 51 and the second frame 61 or the adjacent second frame 61. The contact part of the mounting block 62 and the second frame 61 is welded and connected, and the mounting block 62 is used for fixed installation of the battery module 1.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. 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 power battery box assembly, comprising a battery module (1), wherein the battery module (1) is used to power a truck, and is characterized in that: Also includes: A first frame assembly (5), the first frame assembly (5) being used for mounting a battery module (1), the battery module (1) being arranged inside the first frame assembly (5); a second frame assembly (6), the second frame assembly (6) being used to place an added battery module (1), the second frame assembly (6) being arranged at the bottom end of the battery module (1); A connecting member, the connecting member being arranged at the top end of the second frame assembly (6), and the connecting member being used to connect the first frame assembly (5) and the second frame assembly (6); A fixing bolt (7) is provided on the top of the connecting member, and the fixing bolt (7) is used to lock the connecting member and the first frame assembly (5).

2. A power battery box assembly according to claim 1, characterized in that: The first frame assembly (5) comprises a first frame (51), a first slot (52) for inserting a connecting member is provided at the bottom end of the first frame (51), and first thread grooves (53) are respectively provided at both ends of the inner wall of the first slot (52).

3. A power battery box assembly according to claim 2, characterized in that: The first thread groove (53) is threadably connected to the fixing bolt (7), and the vertical cross-section of the first thread groove (53) and the first slot (52) is cross-shaped.

4. The power battery box assembly according to claim 1, characterized in that: The second frame assembly (6) includes a second frame (61), and the connecting member includes a plug-in block (63). The top end of the second frame (61) is fixedly connected to the bottom end of the plug-in block (63). The top of the plug-in block (63) is provided with a circular through groove for inserting a fixing bolt (7). The top end of the second frame (61) is provided with a buffer for reducing vibration, and the interior of the second frame (61) is provided with a mounting block (62).

5. The power battery box assembly according to claim 4, characterized in that: A second slot (65) for inserting adjacent plug-in blocks (63) is provided at the bottom end of the second frame (61), and second thread grooves (66) are respectively provided at both ends of the inner wall of the second slot (65). The second thread groove (66) is threadedly connected to the fixing bolt (7), and the vertical section of the second slot (65) and the second thread groove (66) is cross-shaped.

6. The power battery box assembly according to claim 5, characterized in that: The buffer member comprises a buffer bar (64), the bottom end of the buffer bar (64) being fixedly connected to the top end of the second frame (61).

7. The power battery box assembly according to claim 2, characterized in that: A water cooling unit (2) for cooling the battery module (1) is provided inside the first frame (51), and a low-voltage control box (3) and a high-voltage distribution box (4) are provided inside the first frame (51).

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