Efficient heat dissipation battery pack

Abstract

The utility model relates to the technical field of battery packs, and discloses an efficient heat dissipation battery pack which comprises a battery pack body, a positioning rod is arranged in the battery pack body, and a spring, a sliding block, a movable plate and a fuse are connected to the surface of the positioning rod in a sleeved mode. The dry powder fire extinguisher is reasonable in structure, the movable plate moves rightwards to cause the trigger rod to move rightwards at the same time, the dry powder fire extinguisher is triggered to spray dry powder to the lithium battery due to the fact that the trigger rod moves rightwards, and pressure generated by the lithium battery can be continuously discharged through the pressure relief valve to avoid explosion of the lithium battery; the problem that in the driving process of a driver, due to spontaneous combustion of a lithium battery, the driver is in danger and cannot escape in time is solved, the battery line is separated from the lithium battery through leftward movement of the line pipe, and the problem that the lithium battery is damaged due to spontaneous combustion of the battery line is solved; the cooling liquid circulates in the cooling pipeline, and the problem that the lithium battery is damaged due to the fact that the temperature of the battery pack is too high is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery packs, in particular to a high-efficiency heat dissipation battery pack. Background Art

[0002] In automotive applications, many independent electrochemical units are connected in series to form a battery pack, also known as a battery pack.

[0003] With the continuous development and maturity of lithium battery technology, it is being used more and more widely in various fields with energy storage needs. The structure of a traditional lithium battery pack includes multiple lithium battery cells, a cell bracket (which is located between the cells and is a structural member that plays a supporting role) and a structural fixing member of the overall appearance. In order to reduce the size of the battery pack, the cells are usually arranged closely. Therefore, the overall structural form causes poor heat dissipation of the battery pack.

[0004] A heat dissipation battery pack disclosed in the Chinese utility model patent application disclosure CN218827382U improves the heat dissipation performance and service life of the battery pack by respectively opening a plurality of ventilation holes at the gap positions between two adjacent rows of battery cells on the lower shell and the upper shell. However, the existing device does not solve the problem that the driver cannot escape in time due to the natural danger of the battery during driving and the battery is easily damaged due to spontaneous combustion caused by line overload. Therefore, we propose a new device to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a highly efficient heat dissipation battery pack, which solves the problem that the driver cannot escape in time due to spontaneous combustion of the battery while driving and the battery is easily damaged due to spontaneous combustion of the line overload.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: a high-efficiency heat dissipation battery pack, including a battery pack body, a positioning rod is provided inside the battery pack body, a spring is sleeved on the surface of the positioning rod, a slider is provided at one end of the positioning rod, a movable plate is provided on one side of the slider, a fuse is sleeved inside the movable plate, a trigger rod is inserted on one side of the movable plate, a dry powder fire extinguisher is provided on the surface of the trigger rod, a pressure relief valve is provided on one side of the battery pack body, a ignition plate is provided on one side of the battery pack body, a slide seat is provided on one side of the battery pack body, a mobile motor is provided inside the slide seat, a mobile screw is inserted at one end of the mobile motor, and a line tube is threaded through the surface of the mobile screw.

[0009] Optionally, a hole is provided on one side of the battery pack body, and the fuse is adapted to the hole by penetrating the movable plate.

[0010] Optionally, a fixing seat is provided on the surface of the dry powder fire extinguisher.

[0011] Optionally, a temperature sensor is provided inside the circuit tube, and a battery circuit is provided inside the circuit tube.

[0012] Optionally, a water tank is provided on one side of the battery pack body, and a water pump is plugged into one side of the water tank.

[0013] Optionally, a cooling pipeline is plugged into one end of the water pump, and a lithium battery is provided inside the cooling pipeline.

[0014] Optionally, a heat sink is provided on one side of the battery pack body, and a driver is provided on one side of the battery pack body.

[0015] In summary, the technical effects and advantages of the utility model are:

[0016] 1. The utility model has a reasonable structure. The trigger rod moves to the right by the moving plate, and the dry powder fire extinguisher is triggered by the trigger rod moving to the right to spray dry powder on the lithium battery. The pressure generated by the lithium battery can be continuously discharged through the pressure relief valve to avoid its explosion, which solves the problem that the driver cannot escape in time due to the spontaneous combustion of the lithium battery during driving, and achieves the effect of continuously controlling the lithium battery to reduce its spreading speed, which greatly enhances the driver's survival probability.

[0017] 2. In the utility model, the battery circuit is separated from the lithium battery by moving the circuit tube to the left, thereby solving the problem of damage to the lithium battery caused by spontaneous combustion of the battery circuit, and achieving the effect of preventing the lithium battery from being seriously damaged by separating the battery circuit from the lithium battery when the battery circuit spontaneously combusts, thereby greatly enhancing the service life of the lithium battery. The coolant is circulated inside the cooling pipeline through the pipeline provided on one side of the cooling pipeline, thereby solving the problem of damage to the lithium battery caused by excessively high temperature of the battery pack, achieving the effect of efficiently cooling the battery pack and the lithium battery, and greatly enhancing the heat dissipation effect of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is an exploded schematic diagram of the positioning rod structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the explosion of the battery pack structure of the utility model;

[0021] Figure 4This is an exploded schematic diagram of the slide seat structure of the utility model;

[0022] Figure 5 This is an explosion diagram of the water tank structure of the utility model.

[0023] In the figure: 1. battery pack body; 2. positioning rod; 3. spring; 4. slider; 5. moving plate; 6. fuse; 7. trigger rod; 8. dry powder fire extinguisher; 9. pressure relief valve; 10. ignition plate; 11. slide seat; 12. moving motor; 13. moving screw; 14. line pipe; 15. temperature sensor; 16. battery line; 17. water tank; 18. water pump; 19. cooling pipeline; 20. lithium battery; 21. radiator; 22. driver. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example: Reference Figure 1-Figure 5 A high-efficiency heat dissipation battery pack shown includes a battery pack body 1, a positioning rod 2 is provided inside the battery pack body 1, a spring 3 is sleeved on the surface of the positioning rod 2, a slider 4 is provided at one end of the positioning rod 2, a moving plate 5 is provided on one side of the slider 4, a fuse 6 is sleeved inside the moving plate 5, a trigger rod 7 is inserted on one side of the moving plate 5, a dry powder fire extinguisher 8 is provided on the surface of the trigger rod 7, a pressure relief valve 9 is provided on one side of the battery pack body 1, a ignition plate 10 is provided on one side of the battery pack body 1, a slide groove seat 11 is provided on one side of the battery pack body 1, a moving motor 12 is provided inside the slide groove seat 11, a moving screw 13 is inserted at one end of the moving motor 12, and a line tube 14 is threaded through the surface of the moving screw 13.

[0026] As a preferred implementation in this embodiment, Figure 1-Figure 3 and Figure 5As shown, a positioning rod 2 is provided inside the battery pack body 1, a spring 3 is sleeved on the surface of the positioning rod 2, a slider 4 is provided at one end of the positioning rod 2, a moving plate 5 is provided on one side of the slider 4, a fuse 6 is sleeved inside the moving plate 5, a trigger rod 7 is inserted on one side of the moving plate 5, and a dry powder fire extinguisher 8 is provided on the surface of the trigger rod 7. The dry powder fire extinguisher can extinguish general fires and fires caused by the combustion of oil, gas, etc. The dry powder fire extinguisher uses carbon dioxide gas or nitrogen gas as a power to spray the dry powder in the cylinder to extinguish the fire. Dry powder is a dry, easy-to-flow fine solid powder, which is composed of a base material that can extinguish fire and additives such as moisture-proof agents, flow promoters, and anti-caking agents. It is mainly used to extinguish the initial fire of flammable liquids such as petroleum, organic solvents, flammable gases and electrical equipment. A pressure relief valve 9 is provided on one side of the battery pack body 1, a fire starter plate 10 is provided on one side of the battery pack body 1, and a lithium battery 20 is provided inside the cooling pipeline 19. During use, the movable plate 5 is fixed by the fuse 6. When the lithium battery 20 spontaneously ignites due to a malfunction, the fuse 6 is burned, so that the movable plate 5 cannot be fixed. Because the movable plate 5 cannot be fixed, the positioning rod 2 and the spring 3 are used to drive the movable plate 5 to move parallel to the right. The rightward movement of the movable plate 5 causes the trigger rod 7 to move to the right at the same time. The dry powder fire extinguisher 8 is triggered by the rightward movement of the trigger rod 7 to extinguish the lithium battery 20. It is worth noting that the above structure has two groups, which are divided into an upper group and a lower group. When spontaneous combustion occurs, the upper group is used to spray dry powder on the spontaneous combustion site to reduce the speed of fire spread. After the fire is reduced and becomes larger again, the upper group movable plate 5 has been moved away, so that the lower group is triggered to control the fire again, buying time for the driver to escape. The pressure generated by the lithium battery 20 can be continuously discharged through the pressure relief valve 9 to prevent its explosion, which solves the problem that the driver cannot escape in time due to the spontaneous combustion of the lithium battery 20 during driving, and achieves the effect of continuously controlling the lithium battery 20 to reduce its spread speed, greatly enhancing the driver's survival probability.

[0027] like Figure 3 and Figure 5As shown, in this embodiment, a slide seat 11 is provided on one side of the battery pack body 1, a mobile motor 12 is provided inside the slide seat 11, a mobile lead screw 13 is plugged into one end of the mobile motor 12, a line tube 14 is threaded through the surface of the mobile lead screw 13, a temperature sensor 15 is provided inside the line tube 14, a battery line 16 is provided inside the line tube 14, a water tank 17 is provided on one side of the battery pack body 1, a water pump 18 is plugged into one side of the water tank 17, a cooling pipeline 19 is plugged into one end of the water pump 18, a lithium battery 20 is provided inside the cooling pipeline 19, a radiator 21 is provided on one side of the battery pack body 1, and a driver 22 is provided on one side of the battery pack body 1. The model of the driver 22 is TB6600, which is a professional two-phase stepper motor driver, compatible with Arduino and other various main controllers, and can realize the functions of motor forward and reverse control, rotation angle control, etc. The stepper motor driver is an electronic device, usually used as a bridge to connect the controller, power supply and stepper motor. Although the processing performance of the controller is very powerful, its output capacity current is very weak. It requires an intermediate bridge to connect the motor and the main control, and provide sufficient power for the motor at the same time. The driver is like human muscle, and is an important part of the entire system movement. The TB6600 stepper motor driver adopts H-bridge bipolar constant phase current drive, which can be directly powered by 9~42VDC, can choose 7-speed subdivision control, 8-speed current control, and supports up to 4A current output. The signal end is equipped with high-speed photoelectric isolation to prevent signal interference, and supports common cathode and common anode signal input methods. For safety reasons, the driver supports offline retention function, which allows users to debug in the power-on state. Built-in temperature protection and overcurrent protection can adapt to more stringent working environments. The driver is suitable for driving 57, 42 type two-phase and four-phase hybrid stepper motors, and can achieve low vibration, low noise and high speed driving effects.It can be applied to high-precision application fields such as robot control and 3D printing. During use, the moving motor 12 drives the moving lead screw 13 to make the line tube 14 move in parallel. When the current is too large and causes the battery line 16 to self-ignite, the temperature sensor 15 detects that the battery line 16 continues to be high in temperature, and the line tube 14 moves to the left to separate the battery line 16 from the lithium battery 20, thereby solving the problem that the lithium battery 20 is damaged due to the spontaneous combustion of the battery line 16. When the battery line 16 self-ignites, the battery line 16 is separated from the lithium battery 20 to prevent the lithium battery 20 from being damaged. The service life of the lithium battery 20 is greatly enhanced by supplying coolant to the cooling pipe 19 through the water tank 17 and the water pump 18. The coolant is circulated in the cooling pipe 19 through the pipe on one side of the cooling pipe 19 to cool the lithium battery 20. The battery pack body 1 can be assisted in cooling by the radiator 21, which solves the problem that the lithium battery 20 is damaged due to the excessive temperature of the battery pack body 1, and achieves the effect of efficiently cooling the battery pack body 1 and the lithium battery 20, greatly enhancing the heat dissipation effect of the battery pack body 1.

[0028] How this utility works:

[0029] During use, the movable plate 5 is fixed by the fuse 6. When the lithium battery 20 spontaneously ignites due to a malfunction, the fuse 6 is burned, so that the movable plate 5 cannot be fixed. Because the movable plate 5 cannot be fixed, the positioning rod 2 and the spring 3 are used to drive the movable plate 5 to move rightward in parallel. The movement of the movable plate 5 to the right causes the trigger rod 7 to move rightward at the same time. The movement of the trigger rod 7 to the right triggers the dry powder fire extinguisher 8 to spray dry powder on the lithium battery 20. It is worth noting that the above structure has two groups, namely, an upper group and a lower group. When spontaneous combustion occurs, the upper group is firstly The upper group sprays dry powder on the spontaneous combustion site to reduce the speed of fire spread. After the fire becomes larger again after being reduced, since the upper group movable plate 5 has been moved away, the lower group is triggered to control the fire again, buying time for the driver to escape. The pressure generated by the lithium battery 20 can be continuously discharged through the pressure relief valve 9 to prevent its explosion, solving the problem that the driver cannot escape in time due to the spontaneous combustion of the lithium battery 20 during driving, and achieving the effect of continuously controlling the lithium battery 20 to reduce its spread speed, greatly enhancing the driver's survival probability. The movable motor 12 drives the movable lead screw 13 to enable the line tube 14 to move in parallel. When the current is too large and the battery line 16 spontaneously ignites, the temperature sensor 15 detects that the battery line 16 continues to be high in temperature, and the line tube 14 moves to the left to separate the battery line 16 from the lithium battery 20, solving the problem that the lithium battery 20 is damaged due to the spontaneous combustion of the battery line 16, and achieving the effect that the lithium battery 20 will not be seriously damaged by separating the battery line 16 from the lithium battery 20 when the battery line 16 spontaneously ignites, greatly enhancing the driver's survival probability. The service life of the lithium battery 20 is enhanced. The cooling liquid can be supplied to the cooling pipeline 19 through the water tank 17 and the water pump 18. The cooling liquid is circulated in the cooling pipeline 19 through the pipeline provided on one side of the cooling pipeline 19, so as to cool the lithium battery 20. The battery pack body 1 can be assisted in cooling through the radiator 21, which solves the problem that the lithium battery 20 is damaged due to the over-high temperature of the battery pack body 1, and achieves the effect of efficiently cooling the battery pack body 1 and the lithium battery 20, thereby greatly enhancing the heat dissipation effect of the battery pack body 1.

[0030] The electrical components appearing in this article are all connected to the external main controller TB6600 and 220V AC power, and the main controller can be a conventional known device for control such as a computer.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A high-efficiency heat dissipation battery pack, comprising a battery pack body (1), characterized in that: A positioning rod (2) is provided inside the battery pack body (1), a spring (3) is sleeved on the surface of the positioning rod (2), a slider (4) is provided at one end of the positioning rod (2), a moving plate (5) is provided on one side of the slider (4), a fuse (6) is sleeved inside the moving plate (5), a trigger rod (7) is inserted on one side of the moving plate (5), a dry powder fire extinguisher (8) is provided on the surface of the trigger rod (7), a pressure relief valve (9) is provided on one side of the battery pack body (1), a ignition plate (10) is provided on one side of the battery pack body (1), a slide groove seat (11) is provided on one side of the battery pack body (1), a moving motor (12) is provided inside the slide groove seat (11), a moving lead screw (13) is inserted at one end of the moving motor (12), and a line pipe (14) is threadedly penetrated through the surface of the moving lead screw (13).

2. The high-efficiency heat dissipation battery pack according to claim 1, characterized in that: A hole is provided on one side of the battery pack body (1), and the fuse (6) is adapted to fit the hole by penetrating the movable plate (5).

3. The high-efficiency heat dissipation battery pack according to claim 1, characterized in that: A fixing seat is provided on the surface of the dry powder fire extinguisher (8).

4. The high-efficiency heat dissipation battery pack according to claim 1, characterized in that: A temperature sensor (15) is provided inside the circuit tube (14), and a battery circuit (16) is provided inside the circuit tube (14).

5. The high-efficiency heat dissipation battery pack according to claim 1, characterized in that: A water tank (17) is provided on one side of the battery pack body (1), and a water pump (18) is plugged into one side of the water tank (17).

6. The high-efficiency heat dissipation battery pack according to claim 5, characterized in that: One end of the water pump (18) is plugged with a cooling pipeline (19), and a lithium battery (20) is provided inside the cooling pipeline (19).

7. The high-efficiency heat dissipation battery pack according to claim 1, characterized in that: A heat sink (21) is provided on one side of the battery pack body (1), and a driver (22) is provided on one side of the battery pack body (1).

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