Battery pack with circulating heat dissipation structure
By designing a circulating heat dissipation structure, utilizing wind power and a liquid circulation system, the problem of heat accumulation under high-power operation of the battery pack is solved, achieving efficient heat dissipation and stable operation.
Patent Information
- Application Number
- CN202421805351.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-07-29
AI Technical Summary
When the battery pack operates at high power, heat accumulates and cannot be dissipated in time, affecting normal operation and posing safety hazards.
The design incorporates a circulating heat dissipation structure, including a fan box, cooling pipes, a motor, fan blades, a liquid storage tank, and a water pump. Heat dissipation is achieved through airflow and liquid circulation, and the heat dissipation fins and air ducts further accelerate heat dissipation.
It effectively reduces battery temperature, improves heat dissipation efficiency, prevents the effects of vibration, ensures normal operation of the battery pack, and extends its service life.
Smart Images

Figure CN223501957U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of battery pack technology, specifically a battery pack with a circulating heat dissipation structure. Background Technology
[0002] A battery pack is a component formed by connecting multiple batteries in parallel. A parallel battery pack requires that each battery has the same voltage, and the output voltage is equal to the voltage of one battery. A parallel battery pack can provide a stronger current and is used to power electrical appliances.
[0003] Currently, under high-power operating conditions, some battery packs generate a large amount of heat that accumulates inside the battery pack casing. This heat cannot be dissipated or cooled down in time, and prolonged high temperatures can affect the normal operation of the battery pack, greatly impacting its lifespan and creating safety hazards. Utility Model Content
[0004] To overcome the above-mentioned defects, this utility model provides a battery pack with a circulating heat dissipation structure, which solves the problem that under high power operation, a large amount of heat will be generated in the battery cell and accumulate in the battery pack casing, which cannot be dissipated and cooled in time, thus affecting the normal operation of the battery pack.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a battery pack with a circulating heat dissipation structure, including a shell, a heat dissipation vent on the shell, a wind box slidably mounted on one side of the shell, a wind collector shroud connected to one side of the shell, a connecting groove on one side of the shell, a hollow plate mounted on one side of the shell, multiple mounting brackets mounted inside the shell, heat dissipation fins connected to the mounting brackets, and a cooling pipe provided at the bottom of the mounting brackets;
[0006] A liquid storage tank is installed on one side of the mounting bracket, and a connecting pipe is connected to one side of the liquid storage tank. A water pump is connected to one end of the connecting pipe. A fan housing is installed inside the air box. A ventilation opening is provided on the fan housing. A dust baffle is connected to the fan housing. A fixing frame is connected inside the fan housing. A motor is installed on the fixing frame. The output shaft of the motor is connected to fan blades.
[0007] As a further embodiment of this utility model: the air collecting hood is located in front of the fan housing, the air collecting hood is connected to an air guide pipe, and the air guide pipe has an air outlet.
[0008] As a further embodiment of this utility model: the two ends of the cooling pipe are respectively connected to the liquid storage tank and the water pump, and the cooling pipe has an S-shaped design.
[0009] As a further embodiment of this utility model: a connecting strip is connected to the bellows, and the connecting strip is slidably connected to the connecting groove.
[0010] As a further embodiment of this utility model: a sliding groove is provided on the hollow plate, a spring is connected inside the hollow plate, a locking block is connected to one end of the spring, a push rod is connected to the locking block, and the push rod slides in the sliding groove.
[0011] As a further embodiment of this utility model: a slot is provided above the bellows, and the card block is triangular in design and fits into the slot.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. This battery pack, equipped with a circulating heat dissipation structure, consists of a motor, fan blades, air collector, air duct, air outlet, liquid storage tank, connecting pipe, water pump, and cooling pipe. The motor rotates the fan blades, which blow outside air into the casing. The air collector then concentrates the air into the air duct, from which it blows air onto the heat dissipation fins and battery through the air outlet. This accelerates airflow and improves heat dissipation efficiency. The water pump draws coolant from the liquid storage tank into the cooling pipe, where it contacts the bottom of the battery to absorb the high temperatures generated during battery operation, reducing the battery temperature and enabling normal operation. The coolant in the cooling pipe flows back into the liquid storage tank, achieving recycling.
[0014] 2. This battery pack with a circulating heat dissipation structure is equipped with a connecting groove, connecting strip, slide groove, spring, push rod, locking block and locking slot. By pushing the push rod, the push rod moves to the bend of the slide groove, thereby fixing the locking block and preventing the spring from rebounding. Then, the connecting strip is pushed into the connecting groove, and the air box is installed on one side of the outer shell. At the same time, the push rod is moved, causing the spring to rebound and push the locking block into the locking slot, thereby fixing the air box and preventing the air box from moving due to vibration generated by the fan blade rotation. The detachable air box makes it easy for staff to clean the dust baffle and avoid dust accumulation and blockage of the dust baffle after long-term use. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention;
[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the outer shell of this utility model;
[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the mounting bracket of this utility model;
[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the wind box and fan cover of this utility model;
[0019] Figure 5 for Figure 2 A schematic diagram of the enlarged structure of section A in the middle;
[0020] In the diagram: 1. Outer shell; 2. Heat dissipation vent; 3. Air box; 4. Air collector cover; 5. Connecting groove; 6. Hollow plate; 7. Mounting bracket; 8. Heat dissipation fins; 9. Cooling pipe; 10. Liquid storage tank; 11. Connecting pipe; 12. Water pump; 13. Connecting strip; 14. Fan cover; 15. Ventilation vent; 16. Dust baffle; 17. Fixing bracket; 18. Motor; 19. Fan blade; 20. Air duct; 21. Air outlet; 22. Slide groove; 23. Spring; 24. Locking block; 25. Push rod; 26. Slot. Detailed Implementation
[0021] The technical solution of this patent will be further described in detail below with reference to specific embodiments.
[0022] like Figure 1-5 As shown, this utility model provides a technical solution: a battery pack with a circulating heat dissipation structure, including a shell 1, a heat dissipation port 2 on the shell 1, a blower 3 slidably installed on one side of the shell 1, and an air collecting hood 4 connected to the inside of the shell 1. The air collecting hood 4 is located in front of the fan cover 14, and an air guide pipe 20 is connected to the air collecting hood 4. An air outlet 21 is opened on the air guide pipe 20. The air blown in is concentrated and transported through the air collecting hood 4 and then flows out from the air outlet 21, thereby accelerating the circulation speed of the high-temperature air inside the shell 1 and reducing the internal temperature of the shell 1.
[0023] A connecting groove 5 is provided on one side of the outer casing 1, and a connecting strip 13 is connected to the bellows 3. The connecting strip 13 is slidably connected to the connecting groove 5. By sliding the connecting strip 13 in the connecting groove 5, the staff can quickly and easily complete the positioning and installation of the bellows 3.
[0024] A hollow plate 6 is installed on one side of the outer casing 1. A sliding groove 22 is provided on the hollow plate 6. A spring 23 is connected inside the hollow plate 6. A locking block 24 is connected to one end of the spring 23. A push rod 25 is connected to the locking block 24. The push rod 25 slides in the sliding groove 22. A slot 26 is provided above the bellows 3. The locking block 24 is triangular and fits into the slot 26. By fitting the locking block 24 into the slot 26, the bellows 3 is fixed to one side of the outer casing 1, so as to prevent the bellows 3 from moving accidentally and affecting the air blowing in and circulation.
[0025] Multiple mounting brackets 7 are installed inside the outer casing 1. Heat dissipation fins 8 are connected to the mounting brackets 7. Cooling pipes 9 are installed at the bottom of the mounting brackets 7. A liquid storage tank 10 is installed on one side of the mounting brackets 7. A connecting pipe 11 is connected to one side of the liquid storage tank 10. A water pump 12 is connected to one end of the connecting pipe 11. The two ends of the cooling pipe 9 are connected to the liquid storage tank 10 and the water pump 12, respectively. The cooling pipe 9 has an S-shaped design. A fan cover 14 is installed inside the air box 3. A ventilation port 15 is opened on the fan cover 14. A dust baffle 16 is connected to the fan cover 14. A fixing bracket 17 is connected inside the fan cover 14. A motor 18 is installed on the fixing bracket 17. The output shaft of the motor 18 is connected to a fan blade 19. Compared with the air heat dissipation fins 8, which can quickly absorb the heat generated by the battery operation, thereby accelerating the heat dissipation, the S-shaped cooling pipe 9 can make the coolant evenly contact the bottom of the battery, thereby absorbing the heat of the battery and reducing the battery temperature.
[0026] The working principle of this utility model is as follows:
[0027] The operator first pushes the push rod 25 to move it to the bend in the slide groove 22, thus preventing the spring 23 from rebounding. Then, the connecting strip 13 is aligned with the connecting groove 5, and the bellows 3 is pushed into one side of the outer casing 1. Next, the push rod 25 is moved to allow the spring 23 to rebound, pushing the locking block 24 into the locking groove 26, thereby fixing the bellows 3 and preventing vibrations from the rotating fan blades 19 from causing it to move. The motor 18 is then started to rotate the fan blades 19, drawing outside air into the outer casing 1, where it is collected by the air collector. The air is concentrated and transported to the air duct 20, and blown from the air outlet 21 on the air duct 20 to the heat dissipation fins 8 and the battery, thereby accelerating the air circulation speed and improving the heat dissipation and cooling efficiency. At the same time, the water pump 12 can pump the coolant in the storage tank 10 to the cooling pipe 9, so that the coolant can contact the bottom of the battery through the cooling pipe 9, reduce the battery temperature, and enable the battery to work normally. The coolant in the cooling pipe 9 will flow back into the storage tank 10 to achieve the purpose of recycling.
[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0029] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.
Claims
1. A battery pack with a circulating heat dissipation structure, comprising a casing (1), characterized in that: The outer shell (1) has a heat dissipation vent (2), a wind box (3) is slidably installed on one side of the outer shell (1), a wind collector hood (4) is connected to one side of the inside of the outer shell (1), a connecting groove (5) is opened on one side of the outer shell (1), a hollow plate (6) is installed on one side of the outer shell (1), a plurality of mounting brackets (7) are installed inside the outer shell (1), heat dissipation fins (8) are connected to the mounting brackets (7), and a cooling pipe (9) is provided at the bottom of the mounting brackets (7); A liquid storage tank (10) is installed on one side of the mounting bracket (7), and a connecting pipe (11) is connected to one side of the liquid storage tank (10). A water pump (12) is connected to one end of the connecting pipe (11). A fan cover (14) is installed inside the air box (3). A ventilation opening (15) is provided on the fan cover (14). A dust baffle (16) is connected to the fan cover (14). A fixing frame (17) is connected inside the fan cover (14). A motor (18) is installed on the fixing frame (17). A fan blade (19) is connected to the output shaft of the motor (18).
2. A battery pack with a circulating heat dissipation structure according to claim 1, characterized in that: The air collecting hood (4) is located in front of the fan housing (14), and the air collecting hood (4) is connected to the air guide pipe (20), and the air guide pipe (20) is provided with an air outlet (21).
3. A battery pack with a circulating heat dissipation structure according to claim 1, characterized in that: The cooling pipe (9) is connected to the liquid storage tank (10) and the water pump (12) at both ends, and the cooling pipe (9) is S-shaped.
4. A battery pack with a circulating heat dissipation structure according to claim 1, characterized in that: A connecting strip (13) is connected to the bellows (3), and the connecting strip (13) is slidably connected to the connecting groove (5).
5. A battery pack with a circulating heat dissipation structure according to claim 1, characterized in that: The hollow plate (6) has a sliding groove (22), and a spring (23) is connected inside the hollow plate (6). One end of the spring (23) is connected to a locking block (24), and a push rod (25) is connected to the locking block (24). The push rod (25) slides in the sliding groove (22).
6. A battery pack with a circulating heat dissipation structure according to claim 5, characterized in that: The bellows (3) has a slot (26) on its top, and the card block (24) is triangular in design and fits into the slot (26).