Integrated heat dissipation air duct battery thermal management system
By integrating a heat dissipation duct battery thermal management system and employing ventilation and conduction components, the problems of low heat dissipation efficiency and cumbersome maintenance of the battery system are solved, achieving efficient heat dissipation and easy maintenance, and extending the service life of the battery pack.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN WEIYI TECH CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-30
AI Technical Summary
Existing battery systems have low heat dissipation efficiency and are cumbersome to maintain. After prolonged use, dust accumulates and blocks the air ducts, leading to battery performance degradation.
An integrated heat dissipation airflow battery thermal management system was designed, including a ventilation component and a conduction component. The ventilation component achieves directional airflow heat dissipation through an exhaust fan and a dust filter. The conduction component increases the contact area and heat conduction efficiency through thermal fins and thermal pads. The easy-to-maintain clamping component facilitates cleaning of the dust filter.
This achieves efficient heat dissipation of the battery pack, extends the battery pack's lifespan, improves the equipment's maintainability, ensures uniform temperature distribution, avoids localized overheating, and enhances the stability and efficiency of the heat dissipation system.
Smart Images
Figure CN224437696U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery technology, specifically to an integrated heat dissipation airflow battery thermal management system. Background Technology
[0002] A battery is a device that stores and releases energy through an electrochemical reaction. Lithium batteries have become the mainstream choice due to their high energy density. The battery thermal management system is a key system for maintaining the battery pack within its optimal operating temperature range. It includes functional modules such as heat dissipation, heating, and temperature monitoring. Because the internal impedance of the battery generates Joule heat when it is working, the increased temperature will lead to the degradation of battery performance. Therefore, it is necessary to dissipate heat from the battery pack.
[0003] Current battery systems mostly employ air-cooling systems for heat dissipation. Traditional forced air-cooling systems often use side-intake, which results in a short airflow path between battery packs. Hot and cold air is expelled before sufficient exchange, leading to low heat dissipation efficiency. Furthermore, over time, dust accumulation clogs the air ducts, requiring complete disassembly of the casing for maintenance, a cumbersome process. Therefore, those skilled in the art provide an integrated heat dissipation airflow battery thermal management system to address the problems mentioned in the background. Utility Model Content
[0004] The purpose of this invention is to provide an integrated heat dissipation airflow battery thermal management system to solve the problems mentioned in the background section of the prior art.
[0005] This utility model provides the following technical solution: an integrated heat dissipation air duct battery thermal management system, including a protective housing, two cavities are opened inside the housing, each cavity contains a battery pack, a ventilation component for dissipating heat from the battery pack is installed inside the housing, and a conduction component for improving heat dissipation efficiency is installed on the inner wall of each cavity.
[0006] As a preferred embodiment of the above technical solution, the ventilation component includes a placement slot located on the lower side of one side of the housing. A placement box is provided inside the placement slot. A dust filter is fixedly installed on the upper side of the inner wall of the placement box. Multiple air vents are provided on the inner wall of one side of the placement box, and all of the multiple air vents are connected to the outside. An exhaust fan is fixedly installed on the inner wall of each of the multiple air vents. Multiple exhaust holes are provided at the top of the inner wall of the placement slot, and the multiple exhaust holes are respectively connected to two cavities. A clamping component for fixing the placement box is installed inside the housing.
[0007] As a preferred embodiment of the above technical solution, the clamping assembly includes a sliding cavity and a limiting groove. The sliding cavity is located inside the box on one side. Two limiting grooves are provided, which are symmetrically located on both sides of the placement box. A bidirectional screw is rotatably connected to the lower part of the inner wall of the sliding cavity. Two symmetrically arranged sliding plates are slidably connected inside the sliding cavity. The bidirectional screw passes through the two sliding plates, and the two sliding plates and the bidirectional screw are externally threaded.
[0008] As a preferred embodiment of the above technical solution, a limiting block is fixedly connected to the upper part of one side of each of the two sliding plates. The two limiting blocks are symmetrically arranged and slide through the inner wall of one side of the sliding cavity. The two limiting blocks are respectively engaged with two limiting grooves. A worm gear is rotatably connected to the inner wall of the sliding cavity. A worm wheel is fixedly sleeved at the middle of the outside of the bidirectional screw. The worm gear and the worm wheel mesh with each other. A knob is rotatably connected to the lower part of one side of the housing. The output end of the knob is fixedly connected to one end of the worm gear.
[0009] As a preferred embodiment of the above technical solution, the conductive component includes thermally conductive fins and thermally conductive pads. Two sets of thermally conductive fins and thermally conductive pads are provided. The two sets of thermally conductive fins are fixedly connected to the inner sidewalls of the two cavities, and the two sets of thermally conductive pads are fixedly connected to the bottom of the inner wall of the two cavities. Each thermally conductive pad has multiple arrayed ventilation holes.
[0010] As a preferred embodiment of the above technical solution, the side wall of the housing has multiple heat dissipation vents, which are respectively connected to the interiors of two cavities. A sliding groove is provided in the middle of one side wall of the placement box.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. The ventilation fan in the ventilation assembly starts working. The ventilation fan drives the outside air to enter the cavity from the bottom after being filtered by the dust filter, forming a directional airflow. This achieves efficient heat dissipation of the battery pack and effectively reduces the operating temperature of the battery pack. After the device has been used for a long time, the knob can be turned to move the limit block out of the limit groove, and the placement box can be pulled out. This allows the dust filter maintenance operation to be completed quickly without tools. This not only ensures the continuous and efficient operation of the heat dissipation system, but also significantly improves the maintainability of the equipment and extends the service life of the battery pack.
[0013] 2. By setting heat-conducting fins and heat-conducting pads inside the cavity, the contact area between the battery pack and the heat dissipation airflow is significantly increased and the heat conduction efficiency is improved. This enables the rapid dissipation of internal heat, avoids local overheating, improves heat dissipation speed and ensures uniform temperature distribution, thereby achieving a more stable and efficient thermal management effect in a compact space. Attached Figure Description
[0014] Figure 1 A schematic diagram of the main structure of the integrated heat dissipation airflow battery thermal management system;
[0015] Figure 2 Side view of the main structure of the integrated heat dissipation airflow battery thermal management system;
[0016] Figure 3 A schematic diagram of the ventilation and conduction components for an integrated heat dissipation airflow battery thermal management system;
[0017] Figure 4 A schematic diagram of the ventilation fan structure for an integrated heat dissipation airflow battery thermal management system;
[0018] Figure 5 A schematic diagram of the worm gear and worm shaft structure for an integrated heat dissipation airflow battery thermal management system.
[0019] Legend:
[0020] 1. Housing; 2. Cavity; 3. Battery Pack; 4. Ventilation Components; 401. Placement Slot; 402. Placement Box; 403. Dust Filter; 404. Ventilation Port; 405. Exhaust Fan; 406. Exhaust Hole; 407. Sliding Chamber; 408. Limiting Slot; 409. Bidirectional Screw; 410. Sliding Plate; 411. Limiting Block; 412. Worm Gear; 413. Worm Wheel; 414. Knob; 5. Conductive Components; 501. Heat Conducting Fins; 502. Heat Conducting Pads; 503. Ventilation Hole; 6. Heat Dissipation Opening; 7. Toggle Slot. Detailed Implementation
[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0022] Please see Figure 1 - Figure 5 As shown, this utility model provides a technical solution: an integrated heat dissipation air duct battery thermal management system, including a protective housing 1, two cavities 2 are opened inside the housing 1, and battery packs 3 are placed in both cavities 2. A ventilation component 4 for dissipating heat from the battery packs 3 is installed inside the housing 1, and a conduction component 5 for improving heat dissipation efficiency is installed on the inner wall of both cavities 2.
[0023] As one implementation method in this embodiment, please refer to Figure 2 - Figure 5As shown, the ventilation component 4 includes a placement slot 401, which is located on the lower side of one side of the housing 1. A placement box 402 is provided inside the placement slot 401. A dust filter 403 is fixedly installed on the upper side of the inner wall of the placement box 402. Multiple air vents 404 are provided on the inner wall of one side of the placement box 402. All the air vents 404 are connected to the outside. An exhaust fan 405 is fixedly installed on the inner wall of each of the multiple air vents 404. Multiple exhaust holes 406 are provided on the top of the inner wall of the placement slot 401. The multiple exhaust holes 406 are respectively connected to two cavities 2. A clamping component for fixing the placement box 402 is installed inside the housing 1.
[0024] The clamping assembly includes a sliding cavity 407 and a limiting groove 408. The sliding cavity 407 is located inside the box 1 on one side. There are two limiting grooves 408, which are symmetrically located on both sides of the placement box 402. A bidirectional screw 409 is rotatably connected to the lower part of the inner wall of the sliding cavity 407. Two symmetrically arranged sliding plates 410 are slidably connected inside the sliding cavity 407. The bidirectional screw 409 passes through the two sliding plates 410, and the two sliding plates 410 and the bidirectional screw 409 are externally threaded.
[0025] Limiting blocks 411 are fixedly connected to the upper side of each of the two sliding plates 410. The two limiting blocks 411 are symmetrically arranged and slide through the inner wall of one side of the sliding cavity 407. The two limiting blocks 411 are respectively engaged with the two limiting grooves 408. A worm gear 412 is rotatably connected to the inner wall of the sliding cavity 407. A worm wheel 413 is fixedly sleeved at the middle of the outer side of the bidirectional screw 409. The worm gear 412 and the worm wheel 413 mesh with each other. A knob 414 is rotatably connected to the lower side of one side of the housing 1. The output end of the knob 414 is fixedly connected to one end of the worm gear 412.
[0026] Furthermore, battery pack 3, based on existing technology, combines multiple individual battery cells together through series and parallel connections, storing and releasing electrical energy through internal chemical reactions within the cells. A temperature detection device is installed inside the housing 1 to monitor the internal temperature of battery pack 3 (details omitted here). When heat dissipation is required for battery pack 3, the ventilation fan 405 in the ventilation assembly 4 activates, driving external air into the placement box 402. After being filtered by the dust filter 403, the air enters the cavity 2 through the bottom exhaust port 406, forming a directional airflow. This achieves efficient heat dissipation of battery pack 3, effectively reducing its operating temperature. After prolonged use... The knob 414 can be rotated to rotate the worm gear 412, which in turn rotates the worm wheel 413 in the sliding cavity 407. The double-acting screw 409 rotates, causing the two sliding plates 410 to move away from each other in the sliding cavity 407. The two limiting blocks 411 move out of the limiting groove 408, and the placement box 402 is slidably set in the placement groove 401. The placement box 402 can be pulled out, allowing the user to clean the dust filter 403 inside. This allows the dust filter 403 to be maintained quickly without tools, ensuring the continuous and efficient operation of the heat dissipation system, significantly improving the maintainability of the equipment, and extending the service life of the battery pack 3.
[0027] As one implementation method in this embodiment, please refer to Figure 1 - Figure 3 As shown, the conductive component 5 includes heat-conducting fins 501 and heat-conducting pads 502. Both heat-conducting fins 501 and heat-conducting pads 502 are provided in two sets. The two sets of heat-conducting fins 501 are fixedly connected to the inner sidewalls of the two cavities 2, and the two sets of heat-conducting pads 502 are fixedly connected to the bottom of the inner wall of the two cavities 2. Each heat-conducting pad 502 has multiple arrayed ventilation holes 503.
[0028] Furthermore, the battery pack 3 is placed above the heat-conducting fins 501 and heat-conducting pads 502 inside the cavity 2, which significantly increases the contact area between the battery pack 3 and the heat dissipation airflow and improves the heat conduction efficiency. The heat-conducting fins 501 accelerate heat dissipation by expanding the heat dissipation surface area, while the ventilation holes 503 on the heat-conducting pads 502 fill the contact gaps, allowing the airflow to flow evenly at the bottom of the cavity 2, ensuring uniform heat transfer, and quickly dissipating the heat accumulated inside, avoiding local overheating. This not only improves the heat dissipation speed but also ensures uniform temperature distribution, thereby achieving a more stable and efficient thermal management effect in a compact space.
[0029] As one implementation method in this embodiment, please refer to Figure 1 - Figure 2 As shown, the side wall of the housing 1 has multiple heat dissipation vents 6, which are connected to the interior of the two cavities 2 respectively.
[0030] Furthermore, the heat dissipation vent 6 allows ventilation inside the cavity 2, promotes air exchange between the inside and outside of the housing 1, and promptly removes the heat generated by the battery pack 3 during operation, preventing heat accumulation that could lead to excessively high local temperatures. This helps maintain the battery pack 3 operating stably within a suitable temperature range, extends its service life, and reduces the risk of thermal runaway.
[0031] As one implementation method in this embodiment, please refer to Figure 2 and Figure 4 As shown, a toggle groove 7 is provided in the middle of one side wall of the placement box 402, and an anti-slip pad layer is provided inside the toggle groove 7. The anti-slip pad layer is made of rubber.
[0032] Furthermore, the toggle groove 7 allows the user to apply stable force with a single finger to complete the pull-out operation of the placement box 402, and the rubber material increases the coefficient of friction to prevent slippage during operation.
[0033] Working principle: When heat dissipation of battery pack 3 is required, the ventilation fan 405 in the ventilation assembly 4 starts to work. The ventilation fan 405 drives outside air into the placement box 402. After being filtered by the dust filter 403, the air enters the cavity 2 through the bottom exhaust port 406, forming a directional airflow, which achieves efficient heat dissipation of battery pack 3 and effectively reduces the operating temperature of battery pack 3. After the device has been used for a long time, the knob 414 can be turned to rotate the worm gear 412, which in turn rotates the worm wheel 413 in the sliding cavity 407 and the bidirectional screw 409. This allows the two sliding plates 410 to move away from each other in the sliding cavity 407, and the two limiting blocks 411 to move out of the limiting groove 408. At this time, the user can pull out the placement box 402 to clean the dust filter 403 inside the placement box 402. The maintenance of the dust filter 403 can be completed quickly without tools, ensuring the continuous and efficient operation of the heat dissipation system, significantly improving the ease of maintenance of the equipment, and extending the service life of the battery pack 3. The battery pack 3 is placed above the heat-conducting fins 501 and heat-conducting pads 502 inside the cavity 2, which significantly increases the contact area between the battery pack 3 and the heat dissipation airflow and improves the heat conduction efficiency. The heat-conducting fins 501 accelerate heat dissipation by expanding the heat dissipation surface area, while the ventilation holes 503 on the heat-conducting pads 502 fill the contact gaps, allowing the airflow to flow evenly at the bottom of the cavity 2, ensuring uniform heat transfer, and quickly dissipating the heat accumulated inside, avoiding local overheating. This improves the heat dissipation speed and ensures uniform temperature distribution, thereby achieving a more stable and efficient thermal management effect in a compact space.
[0034] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.
Claims
1. Integrated heat sink air duct battery thermal management system comprising a box (1) for protection, characterized in that: The housing (1) has two cavities (2) inside, and each cavity (2) contains a battery pack (3). The housing (1) is equipped with a ventilation component (4) for dissipating heat from the battery pack (3), and the inner walls of the two cavities (2) are equipped with a conductive component (5) for improving heat dissipation efficiency.
2. The integrated heat dissipation airflow battery thermal management system according to claim 1, characterized in that: The ventilation component (4) includes a placement slot (401) located on the lower side of the box (1). A placement box (402) is provided inside the placement slot (401). A dust filter (403) is fixedly installed on the upper side of the inner wall of the placement box (402). Multiple air vents (404) are provided on the inner wall of one side of the placement box (402). All of the multiple air vents (404) are connected to the outside. A ventilation fan (405) is fixedly installed on the inner wall of each of the multiple air vents (404). Multiple exhaust holes (406) are provided on the top of the inner wall of the placement slot (401). The multiple exhaust holes (406) are respectively connected to two cavities (2). A clamping component for fixing the placement box (402) is installed inside the box (1).
3. The integrated heat dissipation airflow battery thermal management system according to claim 2, characterized in that: The clamping assembly includes a sliding cavity (407) and a limiting groove (408). The sliding cavity (407) is located inside the box (1) on one side. There are two limiting grooves (408), which are symmetrically located on both sides of the placement box (402). A bidirectional screw (409) is rotatably connected to the lower part of the inner wall of the sliding cavity (407). Two symmetrically arranged sliding plates (410) are slidably connected inside the sliding cavity (407). The bidirectional screw (409) passes through the two sliding plates (410), and the two sliding plates (410) and the bidirectional screw (409) are externally threaded together.
4. The integrated heat dissipation airflow battery thermal management system according to claim 3, characterized in that: Each of the two sliding plates (410) is fixedly connected to a limiting block (411) at the upper part of one side. The two limiting blocks (411) are symmetrically arranged. Both limiting blocks (411) slide through the inner wall of one side of the sliding cavity (407). The two limiting blocks (411) are respectively engaged with two limiting grooves (408). A worm gear (412) is rotatably connected to the inner wall of the sliding cavity (407). A worm wheel (413) is fixedly sleeved at the middle of the outside of the bidirectional screw (409). The worm gear (412) and the worm wheel (413) mesh with each other. A knob (414) is rotatably connected to the lower part of one side of the housing (1). The output end of the knob (414) is fixedly connected to one end of the worm gear (412).
5. The integrated heat dissipation airflow battery thermal management system according to claim 1, characterized in that: The conductive component (5) includes heat-conducting fins (501) and heat-conducting pads (502). Both the heat-conducting fins (501) and the heat-conducting pads (502) are provided in two sets. The two sets of heat-conducting fins (501) are fixedly connected to the inner sidewalls of the two cavities (2), and the two sets of heat-conducting pads (502) are fixedly connected to the bottom of the inner wall of the two cavities (2). Each heat-conducting pad (502) has multiple arrayed ventilation holes (503).
6. The integrated heat dissipation airflow battery thermal management system according to claim 2, characterized in that: The side wall of the box (1) has multiple heat dissipation vents (6), which are connected to the interior of two cavities (2) respectively. The middle of one side wall of the placement box (402) has a toggle groove (7).