Lithium battery BMS (Battery Management System) fast-assembly heat dissipation shell

Abstract

The utility model relates to the field of heat dissipation shells, in particular to a lithium battery BMS (Battery Management System) fast-assembly heat dissipation shell, an upper cover is arranged on the upper part of a bottom shell in a covering manner, the upper cover and the bottom shell are connected through a plurality of connecting rods, an insertion block is arranged on one side of the upper cover, and when the upper cover and the bottom shell are connected in a covering manner, the insertion block is butted and locked with a limiting mechanism arranged on one side of the bottom shell. According to the utility model, the heat dissipation shell is composed of the bottom shell and the upper cover, and the upper cover is quickly locked and butted through the insertion column structure arranged on one side of the bottom shell, so that the connection state of the bottom shell and the upper cover is changed only by driving the insertion column to move through the pull rod in the disassembly and assembly process, and the quick opening effect of the upper cover is realized through the arrangement of the connecting rod and the torsional spring piece; the assembling efficiency of the BMS equipment is improved, and the later maintenance efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation housing technology, and in particular to a quick-install heat dissipation housing for a lithium battery BMS. Background Technology

[0002] Lithium battery packs consist of cells connected in series and parallel at basic voltage levels. A BMS protection board is then connected to detect the voltage and current, and finally, the cells are installed in a matching casing. In traditional batteries, the BMS protection board is connected to the cells without heat dissipation. When subjected to high-current charging and discharging, the temperature of the BMS protection board will rise. Long-term operation at high temperatures will reduce the lifespan of the BMS protection board or even damage it.

[0003] While existing lithium battery heat dissipation housings offer some heat dissipation during use, most are one-piece housings. During later maintenance, it is necessary to disassemble and reassemble the matching fasteners and housing components, which is not only time-consuming and labor-intensive but also increases maintenance time and costs. Therefore, there is an urgent need for a quick-release heat dissipation housing for lithium battery BMS. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a quick-install heat dissipation housing for lithium battery BMS.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A quick-release heat dissipation housing for a lithium battery BMS includes a bottom shell, and an upper cover is installed on the upper part of the bottom shell. The upper cover and the bottom shell are connected by multiple connecting rods. An insert block is provided on one side of the upper cover. When the upper cover and the bottom shell are connected, the insert block is engaged and locked with a limiting mechanism provided on one side of the bottom shell.

[0007] The limiting mechanism includes a pull rod and a pin. The pin is limited and fitted into a limiting groove on one side of the bottom shell. A spring is fitted into the limiting groove, and the other end of the spring is connected to the pin. One end of the pin extends out of the limiting groove and the other end is connected to the pull rod, which extends out of the outer wall of the bottom shell.

[0008] Furthermore, a preferred configuration is that a cooling fan is installed at the center of the bottom end of the bottom shell.

[0009] In addition, a preferred structure is that the inner walls of both the bottom shell and the top cover are equipped with multiple protrusions.

[0010] In addition, a preferred structure is that a pair of connecting rods are rotatably mounted on both sides of the outer wall of the bottom shell, and the other end of each connecting rod is rotatably connected to both sides of the outer wall of the top cover.

[0011] In addition, a preferred structure is that a torsion spring is provided at the rotatable connection between the connecting rod and the bottom shell.

[0012] In addition, a preferred structure is that a slot is provided on one side of the bottom shell to mate with the insert block, guide arc corners are provided at both ends of the bottom of the insert block, and mating holes are provided on both sides of the outer wall of the insert block.

[0013] In addition, a preferred structure is that the insertion post is installed in the limiting groove, and the upper part of the end of the insertion post extending out of the limiting groove is provided with an inclined cut.

[0014] In addition, a preferred structure is that a second limiting groove is opened on one side of the first limiting groove, and a pull rod is installed in the second limiting groove for limiting, the diameter of the pull rod being smaller than the diameter of the insert post.

[0015] The beneficial effects of this utility model are as follows:

[0016] In this utility model, a heat dissipation housing is composed of a bottom shell, a top cover, and a connecting rod. The top cover is quickly locked and connected by a pin structure set on one side of the bottom shell. During disassembly and assembly, the pin can be moved by pulling the rod to change the connection state of the bottom shell and the top cover. The top cover can be quickly opened by the connecting rod and torsion spring, which improves the assembly efficiency of BMS equipment and the efficiency of subsequent maintenance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external structure of a quick-install heat dissipation housing for a lithium battery BMS proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of the unfolded structure of a quick-install heat dissipation housing for a lithium battery BMS proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the connecting rod installation structure proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the insert mounting structure proposed in this utility model;

[0021] Figure 5 This is an exploded view of the insert mounting structure proposed in this utility model;

[0022] Figure 6 This is a schematic diagram of the external structure of the insert block proposed in this utility model.

[0023] In the diagram: 1. Bottom shell; 2. Top cover; 21. Insert block; 22. Guide arc angle; 23. Connecting hole; 3. Connecting rod; 4. Pull rod; 41. Insert post; 5. Boss; 6. Cooling fan; 7. Torsion spring; 8. Spring; 9. Limiting groove one; 91. Limiting groove two. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figure 1-6 A quick-release heat dissipation housing for a lithium battery BMS includes a bottom shell 1, an upper cover 2 is installed on the upper part of the bottom shell 1, the upper cover 2 is connected to the bottom shell 1 by multiple connecting rods 3, and an insert block 21 is provided on one side of the upper cover 2. When the upper cover 2 is connected to the bottom shell 1, the insert block 21 is engaged and locked with a limiting mechanism provided on one side of the bottom shell 1.

[0026] Furthermore, the limiting mechanism includes a pull rod 4 and a pin 41. The pin 41 is limited and fitted into a limiting groove 9 opened on one side of the bottom shell 1. A spring 8 is fitted into the limiting groove 9. The other end of the spring 8 is connected to the pin 41. One end of the pin 41 extends out of the limiting groove 9, and the other end is connected to the pull rod 4. The pull rod 4 extends out of the outer wall of the bottom shell 1.

[0027] A cooling fan 6 is installed at the bottom center of the bottom shell 1, which meets the basic heat dissipation requirements.

[0028] Multiple protrusions 5 are installed on the inner walls of the bottom shell 1 and the top cover 2. The protrusions 5 raise the bottom installation gap of the BMS equipment, which is conducive to air circulation.

[0029] A pair of connecting rods 3 are rotatably mounted on both sides of the outer wall of the bottom shell 1, and the other end of each connecting rod 3 is rotatably connected to both sides of the outer wall of the top cover 2.

[0030] A torsion spring 7 is provided at the rotatable connection between the connecting rod 3 and the bottom shell 1. The torsion spring 7 generates a clockwise torsional force, that is, a torsional force that rotates the upper cover 2 to the side. In the later disassembly process, the upper cover 2 is automatically opened by the connecting rod 3, which improves convenience.

[0031] A slot is provided on one side of the bottom shell 1 to connect with the insertion block 21. The bottom ends of the insertion block 21 are provided with guide arcs 22. The outer walls of the insertion block 21 are provided with docking holes 23. When the guide arcs 22 come into contact with the insertion post 41, they can squeeze the insertion post 41, so that the insertion post 41 can move smoothly.

[0032] The insertion post 41 is installed in the limiting groove 9, and the upper part of the end of the insertion post 41 that extends out of the limiting groove 9 is provided with an inclined cut.

[0033] One side of the limiting groove 9 is connected to the limiting groove 2 91, and a pull rod 4 is installed in the limiting groove 2 91. The diameter of the pull rod 4 is smaller than the diameter of the insert 41.

[0034] In this embodiment, the bottom shell 1 is used to assemble the lithium battery BMS equipment. The upper cover 2 is driven by the connecting rod 3 to move smoothly down until it covers the upper part of the BMS equipment. At the same time, the insert block 21 on one side of the upper cover 2 aligns with the slot on one side of the bottom shell 1. The insert post 41 on one side of the bottom shell 1 is pressed against the outer wall of the insert block 21 and retracts into the limiting groove 9 under the pressure. When the insert post 41 and the docking hole 23 on the side of the insert block 21 are aligned, the spring 8 returns to its original position and pushes the insert post 41 into the docking hole 23, thus completing the locking and docking of the bottom shell 1 and the upper cover 2.

[0035] In practical application, during the rotation of the upper cover 2, the guide arc angle 22 on the outer wall of the insert block 21 presses against the upper inclined surface of the insert post 41, pressing the insert post 41 and causing it to retract into the limiting groove 9, and compressing the spring 8.

[0036] Furthermore, during the later disassembly process, it is only necessary to pull the lever 4 outward to retract the insertion post 41 inward. At this time, the insertion post 41 disengages from the docking hole 23 provided on the outer wall of the insertion block 21. Under the return torque of the torsion spring 7, the connecting rod 3 drives the upper cover 2 to open automatically.

[0037] Furthermore, the bottom shell 1 and the top cover 2 are connected by the connecting rod 3 to form a housing component. The overall unfolding and retraction of the housing can be completed by moving the top cover 2. The quick docking and unlocking functions between the bottom shell 1 and the top cover 2 can be achieved by moving the insertion post 41, eliminating the need for cumbersome fastener disassembly operations. This allows the BMS equipment to be quickly installed and disassembled with the housing, improving maintenance efficiency.

[0038] It is worth noting that the specific operating principles and circuit connections of the lithium battery BMS, which were not explained in detail above, are common knowledge to those skilled in the art and will not be explained further.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A quick-release heat dissipation housing for a lithium battery BMS, comprising a bottom shell (1), characterized in that, The upper part of the bottom shell (1) is covered with a top cover (2). The top cover (2) and the bottom shell (1) are connected by multiple connecting rods (3). A plug (21) is provided on one side of the top cover (2). When the top cover (2) and the bottom shell (1) are connected, the plug (21) is engaged and locked with the limiting mechanism provided on one side of the bottom shell (1). The limiting mechanism includes a pull rod (4) and a plug (41). The plug (41) is limited and assembled in a limiting groove (9) opened on one side of the bottom shell (1). A spring (8) is installed in the limiting groove (9). The other end of the spring (8) is connected to the plug (41). One end of the plug (41) extends out of the limiting groove (9), and the other end is connected to the pull rod (4). The pull rod (4) extends out of the outer wall of the bottom shell (1).

2. The quick-install heat dissipation housing for a lithium battery BMS according to claim 1, characterized in that, A cooling fan (6) is installed at the bottom center of the bottom shell (1).

3. The quick-install heat dissipation housing for a lithium battery BMS according to claim 1, characterized in that, The inner walls of the bottom shell (1) and the top cover (2) are each equipped with a number of protrusions (5).

4. The quick-mount heat dissipation shell for a lithium battery BMS according to claim 1, characterized in that, A pair of connecting rods (3) are rotatably installed on both sides of the outer wall of the bottom shell (1), and the other end of each connecting rod (3) is rotatably connected to both sides of the outer wall of the top cover (2).

5. A quick-install heat dissipation housing for a lithium battery BMS according to claim 4, characterized in that, A torsion spring (7) is provided at the rotatable connection between the connecting rod (3) and the bottom shell (1).

6. A quick-install heat dissipation housing for a lithium battery BMS according to claim 1, characterized in that, The bottom shell (1) has a slot on one side to connect with the plug (21), the bottom ends of the plug (21) are provided with guide arcs (22), and the outer walls of the plug (21) are provided with docking holes (23).

7. A quick-install heat dissipation housing for a lithium battery BMS according to claim 1, characterized in that, The insertion post (41) is installed in the limiting groove (9), and an inclined cut is provided on the upper part of the end of the insertion post (41) that extends out of the limiting groove (9).

8. The quick-mount heat dissipation shell for a lithium battery BMS according to claim 1, characterized in that, One side of the limiting groove 1 (9) is connected to the limiting groove 2 (91), and a pull rod (4) is installed in the limiting groove 2 (91). The diameter of the pull rod (4) is smaller than the diameter of the insert (41).

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