AGV battery pack BMS heat dissipation design scheme

Abstract

The utility model discloses an AGV battery pack BMS heat dissipation design scheme, and belongs to battery pack control modules and heat dissipation, the AGV battery pack BMS heat dissipation design scheme comprises a battery pack box body, a handle is fixedly connected to the battery pack box body, a protection barrier is arranged on the battery pack box body, a fixing screw is arranged in the battery pack box body, a dustproof rubber mat is arranged in the battery pack box body, and the dustproof rubber mat is arranged in the battery pack box body. A BMS is arranged in the battery pack box body, a protection plate is arranged on the BMS, and a heat conduction gasket is arranged on the BMS. According to the utility model, an innovatively designed BMS arrangement method is adopted, so that heat can be directly brought out of the box body, meanwhile, the heat dissipation area is increased, and the heat can be directly brought out of the battery pack box body on the premise of not increasing additional hardware (such as an air duct and a fan); the structure design of internal heat dissipation of the battery pack can be simplified, the cost is saved, the requirement of internal arrangement space is reduced, the working stability of the BMS is improved, and the risk of unstable working of the BMS due to high temperature is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation of an AGV battery pack BMS, and in particular to a heat dissipation design scheme of an AGV battery pack BMS. Background Art

[0002] A design for improving BMS heat dissipation is provided. By increasing the heat dissipation area of ​​the BMS board and transferring heat to the outside of the box, the heat of the BMS board is taken away more quickly, and the temperature of the BMS board during operation is reduced. This reduces the operating temperature of the BMS board and improves the working stability of the BMS board.

[0003] This AGV battery pack BMS heat dissipation design scheme still has the following defects when in use: the heating element of the energy storage battery pack is composed of battery cells and BMS boards. When the energy storage battery pack is working normally, the battery cells and BMS boards will generate heat due to power loss. Among them, the heat generation of the BMS board is the most harmful, which seriously affects the service life of the product. Many BMSs on the market currently do not have special heat dissipation designs, and heat accumulates inside the box, with poor heat dissipation effects, which can easily cause the BMS to dissipate heat in time and cause unstable BMS operation. In severe cases, components may be damaged, making the product unusable. Currently, most BMS heat dissipation designs use natural heat dissipation, and the dissipated heat cannot be effectively discharged from the battery pack box. The temperature inside the battery pack is high, and the surface temperature and core temperature of the BMS MOS tube are high, which can easily cause unstable BMS operation. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the existing technology and propose a heat dissipation design scheme for the AGV battery pack BMS.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: it includes a battery pack box, a handle is fixedly connected to the battery pack box, a protective grille is provided on the battery pack box, fixing screws are provided in the battery pack box, a dust-proof rubber pad is provided in the battery pack box, a BMS is provided in the battery pack box, a protective plate is provided on the BMS, and a thermal conductive gasket is provided on the BMS.

[0006] As a further description of the above technical solution:

[0007] The BMS heat dissipation adopts a heat dissipation fin solution, which increases the heat dissipation area, and the heat dissipation fins are arranged on the outside of the box, which is conducive to the dissipation of BMS heat to the outside of the battery box body.

[0008] As a further description of the above technical solution:

[0009] The heat dissipation fins are set inside the protective grille to prevent knocks and collisions during use.

[0010] As a further description of the above technical solution:

[0011] The protective grille is fixed to the box by fixing screws, and the heat dissipation fins are arranged on the outside of the battery pack box, which quickly transfers heat to the outside of the battery pack box, reduces the temperature inside the entire battery pack box, reduces the working environment temperature of the BMS and the battery pack box, and is conducive to the stable operation of the power battery system.

[0012] As a further description of the above technical solution:

[0013] The BMS is assembled inside the box and fixed on the battery pack box.

[0014] As a further description of the above technical solution:

[0015] The fixing screws fix the BMS on the box, and the BMS is assembled inside the battery pack box.

[0016] As a further description of the above technical solution:

[0017] There is a dustproof rubber pad between the BMS and the battery pack body, which eliminates the need to design BMS fixing brackets and other structures, simplifying installation and reducing costs.

[0018] As a further description of the above technical solution:

[0019] The BMS heat conduction channel describes the transfer of heat from the surface of the MOS tube to the BMS protection plate through the thermal pad.

[0020] The utility model has the following beneficial effects:

[0021] 1. In this utility model, an innovative design of BMS layout method can bring heat directly out of the box, while increasing the heat dissipation area. Without adding additional hardware (such as adding air ducts and fans), the heat can be directly brought out of the battery pack box. This can simplify the structural design of internal heat dissipation of the battery pack, save costs, reduce the demand for internal layout space, improve the working stability of the BMS, and reduce the risk of unstable operation of the BMS due to high temperature.

[0022] 2. In the present invention, the BMS is directly fixed on the box, which saves the BMS mounting bracket structure, reduces the installation steps (fixed bracket installation), reduces the cost (no fixed bracket is required), adds heat dissipation fins, and places the heat dissipation fins outside the box, thereby reducing the working temperature inside the box during operation. At the same time, there is no need to design a fan and heat conduction duct separately. The use of thermal pads can more quickly and effectively transfer the heat of the MOS tube to the protective plate with the heat dissipation fins. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an external view of the AGV battery pack BMS heat dissipation design proposed in this utility model;

[0024] Figure 2 This is an internal view (assembled state) of the AGV battery pack BMS heat dissipation design proposed in this utility model;

[0025] Figure 3 This is an internal view (disassembled state) of the AGV battery pack BMS heat dissipation design proposed in this utility model;

[0026] Figure 4 This is a BMS diagram of the AGV battery pack BMS heat dissipation design proposed in this utility model;

[0027] Figure 5 This is a BMS diagram of the AGV battery pack BMS heat dissipation design proposed in this utility model.

[0028] Legend:

[0029] 1. Battery pack box; 2. Protective grille; 3. Handle; 4. BMS; 5. Dustproof rubber pad; 6. Fixing screws; 7. Protective plate; 8. Thermal pad. DETAILED DESCRIPTION

[0030] 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.

[0031] Reference Figure 1-5The utility model provides an embodiment: it includes a battery pack case 1, a handle 3 is fixedly connected to the battery pack case 1, a protective grille 2 is provided on the battery pack case 1, the inner body of the battery pack case is provided with fixing screws 6, a dust-proof rubber pad 5 is provided in the battery pack case 1, a BMS4 is provided in the battery pack case 1, a protective plate 7 is provided on the BMS4, and a thermal conductive gasket 8 is provided on the BMS4. The heat dissipation of the BMS4 adopts a heat dissipation fin solution to increase the heat dissipation area, and the heat dissipation fins are arranged on the outside of the case, which is conducive to the heat dissipation of the BMS4 to the outside of the battery case, the heat dissipation fins are arranged inside the protective grille 2 to prevent knocks and collisions during use, the protective grille 2 is fixed to the case by fixing screws 6, and the heat dissipation fins are arranged on the outside of the battery pack case 1, which quickly transfers heat to the outside of the battery pack case 1, thereby reducing the temperature inside the entire battery pack case 1 and the working environment temperature of the BMS4 and the battery pack case 1, which is conducive to the stable operation of the power battery system. , BMS4 is assembled inside the box, BMS4 is fixed on the battery pack box 1, and the fixing screws 6 fix the BMS4 on the box. The BMS4 is assembled inside the battery pack box 1. There is a dustproof rubber pad 5 between the BMS4 and the battery pack box 1. There is no need to design structures such as the BMS4 fixing bracket, which simplifies the installation and reduces costs. The BMS4 heat conduction channel description transfers the heat on the surface of the MOS tube to the BMS4 protection plate 7 (a metal with fins with good thermal conductivity, such as aluminum alloy) through the thermal conductive gasket 8. An innovative design of the BMS4 layout method can bring heat directly to the outside of the box and increase the heat dissipation area. Without adding additional hardware (such as adding air ducts and fans), the heat can be directly brought out of the battery pack box 1, which can simplify the structural design of the internal heat dissipation of the battery pack, save costs, reduce the demand for internal layout space, improve the working stability of the BMS4, and reduce the risk of unstable operation of the BMS4 due to high temperature.

[0032] Working principle: It includes a battery pack case 1, a handle 3 is fixedly connected to the battery pack case 1, a protective grille 2 is provided on the battery pack case 1, a fixing screw 6 is provided in the battery pack case 1, a dust-proof rubber pad 5 is provided in the battery pack case 1, a BMS4 is provided in the battery pack case 1, a protective plate 7 is provided on the BMS4, a thermal conductive gasket 8 is provided on the BMS4, and a heat dissipation fin solution is adopted for heat dissipation of the BMS4 to the outside of the battery case, and the heat dissipation fins are arranged on the outside of the case, which is conducive to the heat dissipation of the BMS4 to the outside of the battery case, and the heat dissipation fins are arranged inside the protective grille 2 to prevent knocks and collisions during use, and the protective grille 2 is fixed to the case by fixing screws 6, and the heat dissipation fins are arranged outside the battery pack case 1, which quickly transfers heat to the outside of the battery pack case 1, thereby reducing the temperature inside the entire battery pack case 1 and the working environment temperature of the BMS4 and the battery pack case 1, which is conducive to the stable operation of the power battery system. The BMS4 is assembled inside the box, and the BMS4 is fixed on the battery pack box 1. The BMS4 is fixed to the box by fixing screws 6. The BMS4 is assembled inside the battery pack box 1. There is a dustproof rubber pad 5 between the BMS4 and the battery pack box 1. There is no need to design structures such as BMS4 fixing brackets, which simplifies installation and reduces costs. The BMS4 heat conduction channel shows that the heat on the surface of the MOS tube is transferred to the BMS4 protection plate 7 (good thermal conductivity metal with fins, such as aluminum alloy) through the thermal gasket 8. The BMS4 is directly fixed on the box, saving the BMS4 mounting bracket structure, reducing the installation steps (fixed bracket installation), and reducing costs (no fixed bracket is required). Heat dissipation fins are added, and the heat dissipation fins are placed outside the box to reduce the working temperature inside the box during operation. At the same time, there is no need to design fans and heat conduction ducts separately. The use of thermal gaskets 8 can more quickly and effectively transfer the heat of the MOS tube to the protection plate 7 with heat dissipation fins.

[0033] 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 heat dissipation design scheme for an AGV battery pack BMS (4), comprising a battery pack housing (1), characterized in that: A handle (3) is fixedly connected to the battery pack case (1), a protective grille (2) is provided on the battery pack case (1), fixing screws (6) are provided in the battery pack case (1), a dustproof rubber pad (5) is provided in the battery pack case (1), a BMS (4) is provided in the battery pack case (1), a protective plate (7) is provided on the BMS (4), and a thermal conductive pad (8) is provided on the BMS (4).

2. The heat dissipation design scheme of an AGV battery pack BMS (4) according to claim 1 is characterized in that: The BMS (4) heat dissipation adopts a heat dissipation fin solution, which increases the heat dissipation area, and the heat dissipation fins are arranged outside the box body, which is conducive to the heat dissipation of the BMS (4) to the outside of the battery box body.

3. The heat dissipation design scheme of an AGV battery pack BMS (4) according to claim 1 is characterized in that: The heat dissipation fins are arranged inside the protective grille (2) to prevent knocks and collisions during use.

4. The heat dissipation design scheme of an AGV battery pack BMS (4) according to claim 1 is characterized in that: The protective grille (2) is fixed to the box body by fixing screws (6), and the heat dissipation fins are arranged outside the battery pack box body (1) to quickly transfer heat to the outside of the battery pack box body (1), thereby reducing the temperature inside the entire battery pack box body (1) and reducing the working environment temperature of the BMS (4) and the battery pack box body (1), which is conducive to the stable operation of the power battery system.

5. The heat dissipation design scheme of an AGV battery pack BMS (4) according to claim 1 is characterized in that: The BMS (4) is assembled inside the box, and the BMS (4) is fixed on the battery pack box (1).

6. The heat dissipation design scheme of an AGV battery pack BMS (4) according to claim 1 is characterized in that: The fixing screws (6) fix the BMS (4) on the box body, and the BMS (4) is assembled inside the battery pack box body (1).

7. The heat dissipation design scheme of an AGV battery pack BMS (4) according to claim 1 is characterized in that: A dustproof rubber pad (5) is provided between the BMS (4) and the battery pack box (1), eliminating the need to design structures such as a BMS (4) fixing bracket, thereby simplifying installation and reducing costs.

8. The heat dissipation design scheme of an AGV battery pack BMS (4) according to claim 1 is characterized in that: The BMS (4) heat conduction channel is used to transfer heat from the surface of the MOS tube to the BMS (4) protection plate (7) through the heat conduction gasket (8), and the metal fin with good heat conduction is made of aluminum alloy.

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