Battery management system preassembling platform device

Abstract

The utility model provides a battery management system preassembling platform device which comprises a supporting platform, the supporting platform is provided with a U-shaped groove and an L-shaped groove, a positioning pin is fixed in the L-shaped groove, a supporting block is fixed above the U-shaped groove, and a supporting frame is fixed above the L-shaped groove. The first installation support is fixed through the U-shaped groove and the supporting block, the battery management system is fixed through the first installation support, the second installation support is fixed through the L-shaped groove and the positioning pin, the battery management system is fixed through the second installation support, and then the installed battery management system is placed on the supporting frame. According to the preassembling platform device, the two battery management systems are fixedly installed, the stability of fixed torque and the assembling qualified rate can be guaranteed, the preassembling platform device is easy to install and operate and low in cost, the operation difficulty of workers and generated misoperation are reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery packaging, in particular to a battery management system pre-installation platform device. Background Art

[0002] In recent years, with the continuous development and progress of the electric vehicle industry, the requirements for battery packs have also been increasingly stringent. During the battery pack assembly process, various fasteners and bolts in the battery system are pre-installed and torqued, and safety is particularly important.

[0003] At present, CTP battery packs often increase the number of batteries connected in series or parallel to improve the capacity and energy of the entire vehicle to meet the requirements of high endurance. However, due to the limitations of the battery pack itself and the cost of the battery management system, generally two or more battery management systems are required in a battery pack to meet the system control requirements.

[0004] Due to the space limitations of the CTP battery pack, if the battery management system is located in the same position and fixed in a separate upper and lower position, the space inside the battery pack is relatively small. The battery management system is designed as a top-down structure to meet the number of management systems required while ensuring space utilization. This requires specific requirements for the fixed installation position, which greatly complicates the installation of the management system within the battery pack. Because the battery management system is made of plastic, manual control of the assembly of the mounting bracket and the battery management system during installation can lead to large torque differences due to the inconvenience of installation in the small space within the battery pack or the tool being tilted. This can cause unstable fixed torque or cracking after assembly, resulting in the unit being scrapped or requiring replacement. This wastes manpower, material resources, and time, while also affecting the production line's production rhythm, resulting in significant waste and failing to achieve cost control. Utility Model Content

[0005] The technical problem to be solved by the present invention is how to provide a pre-installed platform device that can improve the difficulty of assembling a battery management system.

[0006] The utility model solves the above technical problems through the following technical means:

[0007] The utility model provides a battery management system pre-installation platform device, comprising a support platform, wherein the support platform is provided with a U-shaped groove and an L-shaped groove, a positioning pin is fixed in the L-shaped groove, a support block is fixed above the U-shaped groove, and a support frame is fixed above the L-shaped groove.

[0008] Beneficial effects: The utility model utilizes U-shaped grooves, support blocks, L-shaped grooves, and positioning pins to fix the mounting bracket, and fixes the battery management system through the mounting bracket, so that multiple battery management systems can be fixedly installed, which not only ensures the stability of the fixing torque and the assembly qualification rate, but also has simple installation operation and low cost, reduces the difficulty of employee operation and the resulting erroneous operation, and improves work efficiency.

[0009] Preferably, the support block is in the shape of a cuboid, and a block-shaped limiter is provided on one side of the support block, and an L-shaped right-angle limiter is provided on the other side.

[0010] Beneficial effect: The support block limits and fixes the first mounting bracket through block-shaped limiting and L-shaped right-angle limiting.

[0011] Preferably, the support block is fixed above the U-shaped groove, covering half of the hole groove of the U-shaped groove.

[0012] Beneficial effect: The support block and the U-shaped groove cooperate with each other to limit and fix the first mounting bracket and the battery management system.

[0013] Preferably, the support block is provided with a first avoidance hole.

[0014] Beneficial effect: The first avoidance hole is used for avoidance when the bolts fix the battery management system and the first mounting bracket, because the bolts need to pass through the first mounting bracket to fix the battery management system. If the first avoidance hole is not reserved, the bolts cannot pass through and therefore cannot be tightened.

[0015] Preferably, the support frame is in a Z-shape, and an irregular chamfered groove is provided at the upper end.

[0016] Beneficial effect: The support frame is used to limit and fix the already installed first mounting bracket and first battery management system.

[0017] Preferably, the bottom end of the support frame is fixed on the support platform, and the upper end is just above the L-shaped groove.

[0018] Beneficial effect: The installed first mounting bracket and battery management system are limited and fixed at the upper end of the support frame, and the lower end is just the installed second mounting bracket and battery management system, and then the two battery management systems are locked and torsionally fixed in the L-shaped groove. During the locking and torsion process, the bolts are avoided and fixed through the L-shaped groove.

[0019] Preferably, the support platform is provided with a limit block, and the limit block is fixed on the support platform.

[0020] Preferably, the limit blocks are symmetrically arranged on one side of the support platform, and the limit blocks are also arranged in the middle of the support platform.

[0021] Beneficial effect: The limiting blocks form a triangle to limit and fix the battery management system.

[0022] Preferably, the support platform is provided with a second avoidance hole, and the second avoidance hole is arranged on the side of the L-shaped groove.

[0023] Preferably, a protruding block is provided on the top of the L-shaped groove, and the protruding block is fixed at the junction of the supporting platform and the L-shaped groove.

[0024] Beneficial effect: The protruding block is used to fix the second mounting bracket to prevent the second mounting bracket from falling when the battery management system is fixed with bolts.

[0025] The advantages of the present invention are:

[0026] The utility model pre-installs two mounting brackets on the supporting platform and then fixes them with the mounting holes reserved for the battery management system, thereby achieving stable fixation of partial torque during the pre-installation process, avoiding the problem of being unable to fix torque or operation during assembly when the internal space of the battery pack box is insufficient, and ensuring the feasibility, stability and accuracy of its assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural diagram of a battery management system pre-installed platform device in an embodiment of the present utility model;

[0028] Figure 2 This is a top view of the battery management system pre-installation platform device in an embodiment of the present utility model;

[0029] Figure 3 This is a right view of the battery management system pre-installation platform device in an embodiment of the present utility model;

[0030] Figure 4 This is a front view of the battery management system pre-installation platform device in an embodiment of the present utility model;

[0031] Figure 5 This is a schematic diagram of the planar structure of the first mounting bracket in an embodiment of the present utility model;

[0032] Figure 6 This is a schematic diagram of the planar structure of the second mounting bracket in an embodiment of the present utility model;

[0033] Figure 7 This is an assembly structure diagram of the battery management system pre-installed platform device and the first and second mounting brackets in an embodiment of the present utility model;

[0034] Figure 8 This is a plan view of the assembly of the battery management system pre-installed platform device and the first and second mounting brackets in an embodiment of the present utility model;

[0035] Figure 9 This is a planar assembly diagram of the battery management system pre-installed platform device, the first and second mounting brackets, and the battery management system in an embodiment of the present utility model;

[0036] Figure 10 This is a side view of the assembly of the battery management system pre-installed platform device, the first and second mounting brackets, and the battery management system in an embodiment of the present utility model;

[0037] Markings in the figure: 10-support platform; 10a-avoidance hole; 11-U-shaped groove; 12-L-shaped groove; 12a-positioning pin; 12b-installation avoidance groove; 13-support block; 13a-avoidance hole; 14-support frame; 15-limiting block; 20-first mounting bracket; 30-second mounting bracket; 40-battery management system. DETAILED DESCRIPTION

[0038] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the embodiments described are 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 shall fall within the scope of protection of the present invention.

[0039] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention; in addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. It should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or it can be internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0040] In the description of the embodiment, the mounting bracket used in the embodiment is as follows Figure 5-6 As shown, it includes a first mounting bracket 20 and a second mounting bracket 30, and the battery management system 40 used is as shown in FIG. Figure 7 shown.

[0041] according to Figure 1-4 As shown, this embodiment provides a battery management system pre-installation platform device, including a support platform 10. The support platform 10 is in the shape of a rectangular parallelepiped, with a length of 320 mm, a width of 280 mm, and a height of 40 mm. It is easy for a person skilled in the art to understand that the support platform 10 is set according to the size of the mounting bracket and the battery management system, and there is no size restriction.

[0042] An L-shaped groove 12 with the same structure is symmetrically provided on both sides of the support platform 10. Only one side is discussed in detail here. The height and length of the L-shaped groove 12 are set according to the second mounting bracket 30 without any restriction. A positioning pin 12a is provided at the bottom of the L-shaped groove 12. The positioning pin 12a is conical and the tip is removed to prevent accidental damage to the second mounting bracket 30 and the battery management system 40. The positioning pin 12a plays a guiding role in the fixation of the second mounting bracket 30. The length of the positioning pin 12a is set according to actual conditions without any size restriction. There are two positioning pins 12a for the second mounting bracket 30. The bottom of the mounting bracket 30 is fixed in a limited position. The intersection of the top of the L-shaped groove 12 and the support platform 10 is an inclined surface, and an installation avoidance groove 12b is provided on the inclined surface. The installation avoidance groove 12b can be fixed on the inclined surface by welding or by adhesive bonding on the inclined surface. It is fixed according to the existing technology. The shape of the installation avoidance groove 12b is similar to a rectangular parallelepiped. There are also two installation avoidance grooves 12b. The function of the installation avoidance groove 12b is to leave a bolt locking space between the support platform 10 and the second mounting bracket 30, so that the second mounting bracket 30 and the battery management system 40 can be fixed by bolts. Figure 7-8 As shown, the second mounting bracket 30 is fixed in the L-shaped groove 12, and the mounting avoidance groove 12b is placed below the second mounting bracket 30, leaving locking space for the bolt fixing button.

[0043] The support platform 10 is provided with U-shaped grooves 11 on both sides. The U-shaped grooves 11 are symmetrically arranged on both sides. Only one side is discussed in detail here. The opening of the U-shaped groove 11 is small, and the opening width is about 10 mm.

[0044] The support platform 10 is provided with a support block 13, and the support block 13 is symmetrically arranged above the U-shaped grooves 11 on both sides. Only one side is discussed in detail here. The support block 13 is rectangular, 110 mm long, 30 mm wide, and 20 mm high; the support block 13 is fixed to the support platform 10 by bolts, and a first avoidance hole 13a is left on both sides of the support block 13. The shape of the first avoidance hole 13a is circular. The first avoidance hole 13a is to allow the screw to pass through the battery management system 40 and the first mounting bracket 20 for button fixation. If the first avoidance hole 13a is not provided, the screw cannot pass through the battery management system 40 and the first mounting bracket 20 for button fixation, and therefore cannot be locked.

[0045] The support block 13 is fixed above the U-shaped groove 11, covering half of the open hole groove of the U-shaped groove 11, and the first mounting bracket 20 can be inserted into the U-shaped groove 11 for limit fixing. A block limit is provided at one corner of the support block 13, and an L-shaped right-angle limit is provided on the other side. The block limit and the L-shaped right-angle limit are used to clamp one side of the first mounting bracket 20 on the support block 13, and the U-shaped groove is used to limit one side of the first mounting bracket 20, so that the first mounting bracket 20 can be removed later.

[0046] The support platform 10 is provided with a support frame 14, and the support frame 14 is fixed above the L-shaped groove 12. The support frames 14 are symmetrically arranged above the L-shaped grooves on both sides. Only one side is discussed in detail here. The support frame 14 is Z-shaped, and the top of the support frame 14 is provided with an irregular chamfered groove (not marked in the figure). The upper end of the support frame 12 is fixed above the L-shaped groove 12, and is used to fix the installed first mounting bracket 20 and battery management system 40. The bottom end of the support frame 14 is fixed to the side of the L-shaped groove 12 by bolts. The height of the support frame 14 is 35 mm. The height set in this embodiment is just enough to place the first mounting bracket 20 and the battery management system 40 on the already installed second mounting bracket 30 and battery management system 40.

[0047] The support platform 10 is provided with a limit block 15, which is in the shape of a rectangular block, with 3 blocks and two sizes, of which two smaller limit blocks 15 are fixed on one side of the support platform 10 and are symmetrically arranged. The smaller limit block 15 is fixed on the same side of the L-shaped groove 12 by bolts, and the smaller limit block 15 is vertically fixed on the side of the support platform 10. The remaining larger limit block 15 is fixed in the middle position of the two support frames 14 by bolts, and is also vertically fixed. The two smaller limit blocks 15 and the larger limit block 15 form a triangle for fixing the battery management system 40. The two smaller limit blocks 15 are used to fix one battery management system 40, and the larger limit block 15 can limit two battery management systems 40 at the same time.

[0048] The support platform 10 is provided with a second avoidance hole 10a, which is also circular in shape. The second avoidance hole 10a is provided below the upper end of the support frame 14 of the support platform 10. Two second avoidance holes 10a are provided below the upper end of the support frame 14, and two second avoidance holes 10a are also symmetrically provided below the upper end of the support frame 14 on the other side. The function of the second avoidance hole 10a is to allow the screw to pass through the two battery management systems 40 for button fixation. If the avoidance hole 10a is not provided, the screw cannot pass through the two battery management systems 40 and the button cannot be fixed, so it cannot be locked.

[0049] refer to Figure 7-10 The specific operating principle of a battery management system pre-installed platform device of this embodiment is as follows:

[0050] (1) Take out the support platform 10 and place it on the fixed table. The operator fixes the first mounting bracket 20 into the U-shaped groove 11, and engages and fixes the upper part of the first mounting bracket 20 with the two side limits of the support block 13. Align the fixing hole on the first mounting bracket with the first avoidance hole 13a of the support block 13. Then align and install the battery management system 40 in the required direction and position, lock it and tighten it. The operator assembles it on the support block 13. The assembly operation is simple and the operation difficulty is also reduced (such as Figure 9-10 shown);

[0051] (2) Place the second mounting bracket into the L-shaped groove 12 of the support platform 10 and fix it by the positioning pin 12a. Place the fixing hole of the second mounting bracket so that it coincides with the second avoidance hole 10a. Place the battery management system 40 between the three limiting blocks 15. Fix the battery management system 40 in a limited position. Then, tighten and torque it with bolts according to the installation direction and position. The operator assembles it on the L-shaped groove 12. The assembly operation is simple and the operation difficulty is reduced.

[0052] (3) Take out the first mounting bracket 20 and the battery management system 40 installed in step (1), place them on the support rod 14, and use the support function of the support rod 14 to lock and tighten the battery management system 40 installed on the second mounting bracket 30. During the locking and tightening process, the bolts are installed through the L-shaped slots 12.

[0053] (4) After the assembly is completed, the operator moves the second mounting bracket 30 at the bottom upwards until the height is higher than the smaller limit block 15, then moves it to the left to take out the assembled battery management system 40 and fix it to the corresponding position in the battery pack for installation to complete the action; then repeat the above steps in sequence to install the battery management system 40 at each position of the battery pack one by one.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A battery management system pre-installed platform device, characterized in that: The invention comprises a support platform (10), wherein the support platform (10) is provided with a U-shaped groove (11) and an L-shaped groove (12), wherein the L-shaped groove (12) is provided with a positioning pin (12a), a support block (13) is fixed above the U-shaped groove (11), and a support frame (14) is fixed above the L-shaped groove (12).

2. The battery management system pre-installed platform device according to claim 1, characterized in that: The support block (13) is in the shape of a rectangular parallelepiped, and a block-shaped limiter is provided on one side of the support block (13), and an L-shaped right-angle limiter is provided on the other side.

3. The battery management system pre-installed platform device according to claim 1, characterized in that: The support block (13) is fixed above the U-shaped groove (11) and covers half of the hole groove of the U-shaped groove (11).

4. The battery management system pre-installed platform device according to claim 1, characterized in that: The support block (13) is provided with a first avoidance hole (13a).

5. The battery management system pre-installed platform device according to claim 1, characterized in that: The support frame (14) is in a Z-shape, and an irregular chamfered groove is provided at the top.

6. The battery management system pre-installed platform device according to claim 5, characterized in that: The bottom end of the support frame (14) is fixed on the support platform (10), and the upper end is just above the L-shaped groove (12).

7. The battery management system pre-installed platform device according to claim 1, characterized in that: The support platform (10) is provided with a limit block (15), and the limit block (15) is fixed on the support platform (10).

8. The battery management system pre-installed platform device according to claim 7, characterized in that: The limit block (15) is symmetrically arranged on one side of the support platform (10), and the limit block (15) is also arranged in the middle of the support platform (10).

9. The battery management system pre-installed platform device according to claim 1, characterized in that: The supporting platform (10) is provided with a second avoidance hole (10a), and the second avoidance hole (10a) is arranged at a position close to the L-shaped groove (12).

10. The battery management system pre-installed platform device according to claim 1, characterized in that: The top of the L-shaped groove (12) is provided with an installation avoidance groove (12b), and the installation avoidance groove (12b) is fixed at the junction of the support platform (10) and the L-shaped groove (12).

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