CN-224232729-U - Battery compartment based on composite cooling technology

Abstract

The utility model discloses a battery compartment based on a composite cooling technology, which comprises a safety box, a liquid cooling circulating pump, an explosion-proof valve, a temperature sensor, a variable frequency energy-saving fan and heat insulation buffer cotton, wherein the liquid cooling circulating pump outside is connected with a circulating pipeline, and data is fed back to an external controller under the action of the temperature sensor to ensure that a battery runs in a safe temperature interval. Four battery stacks are arranged below the temperature sensor, and an explosion-proof valve is arranged above the battery stacks, so that burst or chain reaction of the cabin body caused by sudden pressure rise is avoided. The phase change overheat plate is connected in the middle of the battery stack, so that a large amount of heat can be absorbed and stored, and high-efficiency heat management is realized. The heat insulation buffer cotton enables the battery pack to be capable of isolating high-temperature or low-temperature transmission and absorbing vibration or external impact in the running process of equipment, and mechanical damage is avoided. The frequency conversion energy-saving fan is used for dynamically controlling the air quantity and the energy consumption.

Inventors

• SUN CHONGWEN
• WEN YUSHI
• YAN RUNXIN
• LIU YUE
• LI JUNCHAO
• Song Xiangtong
• LIU ZHANYU
• XIE BAOLING

Assignees

• 沈阳工业大学

Dates

Publication Date

20260512

Application Date

20250605

Claims (6)

1. 1. The battery compartment based on the composite cooling technology is characterized by comprising a safety box, a battery pack loaded in the safety box, a liquid cooling circulation mechanism arranged at the bottom of the battery pack in the safety box, an air cooling heat dissipation mechanism arranged on the side wall of the safety box, heat insulation buffer cotton embedded between the safety box and the battery pack, an explosion-proof valve arranged at the upper end of the battery pack and a temperature control assembly arranged in the safety box, wherein the air cooling heat dissipation mechanism is communicated with the outside.
2. 2. The battery compartment based on the composite cooling technology according to claim 1, wherein the liquid cooling circulation mechanism comprises a phase change heat-conducting plate, a liquid cooling pipeline and a circulating heat dissipation pipeline, the phase change heat-conducting plate is arranged at the bottom of the battery pack and is in direct contact with the battery pack, the liquid cooling pipeline is circularly laid at the bottom of the safety box, the output end of the liquid cooling pipeline is connected to the circulating heat dissipation pipeline, and the circulating heat dissipation pipeline penetrates through the safety box and is connected to an external liquid cooling circulating pump.
3. 3. The battery compartment based on the composite cooling technology according to claim 1, wherein the air cooling heat dissipation mechanism comprises a variable frequency energy-saving fan and a heat dissipation tube, the variable frequency energy-saving fan is arranged on the side wall of the safety box, and the heat dissipation tube is symmetrically arranged on two opposite sides of the safety box and is positioned above the variable frequency energy-saving fan.
4. 4. The battery compartment based on the composite cooling technology according to claim 1, wherein a phase change material filling layer is provided between the cells of the battery pack.
5. 5. The battery compartment based on the composite cooling technology according to claim 1, wherein the temperature control assembly comprises a temperature sensor, the temperature sensor is arranged at the upper end of the battery pack and is connected to an external controller through a pipeline, and the external controller is further electrically connected with the liquid cooling circulation mechanism and the air cooling heat dissipation mechanism.
6. 6. The battery compartment based on the composite cooling technology according to claim 1, wherein the safety box comprises a box body and a top cover, a battery compartment bearing base is arranged at the bottom of the box body, reinforcing ribs are arranged outside the box body, and a battery buckle bracket is arranged at the joint of the top cover and the box body.

Description

Battery compartment based on composite cooling technology Technical Field The utility model relates to the technical field of battery cooling, in particular to a battery compartment based on a composite cooling technology. Background With the rapid development of new energy automobiles and energy storage industry, lithium ion batteries are faced with serious thermal management challenges as a core power source, and the temperature control of the lithium ion batteries is directly related to the performance, safety and service life of the batteries. However, the current battery cooling system still has significant disadvantages in terms of heat dissipation efficiency, environmental friendliness and system stability. The traditional liquid cooling system relies on harmful cooling medium, has a heavy structure and is easy to leak, the phase change material has poor heat conduction and slow response, and the heat pipe technology has the problems of heat lag and the like. These defects result in low heat dissipation efficiency, high maintenance cost, short service life of the battery, and failure to meet the instantaneous heat dissipation requirements of high-rate charge and discharge. The market is promoted to need an innovative heat dissipation device, which can not only rapidly respond to temperature fluctuation, but also avoid heat accumulation and structural risks, thereby improving the safety and the cycle life of the battery. In the past battery compartment, for example, patent application with the bulletin number of CN 222440680U, the space inside the fixed box in the patent is too big, and is equipped with a plurality of support columns, when the fixed box takes place to vibrate, the battery produces the collision easily and leads to the explosion, aggravates the potential safety hazard. The existing scheme can lead heat out of the battery, but the outer surface still can accumulate heat, and the battery is difficult to cool rapidly. Meanwhile, when the vehicle is suddenly braked or vibrated, the liquid cooling pipeline is loosened, so that the risk of explosion caused by collision of the battery can be possibly caused, and the potential safety hazard is aggravated. Therefore, a person skilled in the art develops an intelligent battery heat dissipation device based on a composite heat dissipation technology to solve the problems set forth in the background art. Therefore, the development of the efficient intelligent battery heat dissipation device improves the battery heat management performance, realizes efficient intelligent temperature control, ensures safe and stable operation of the battery, enhances the battery environment adaptability, and has important significance for promoting the development of new energy automobiles and energy storage industry. Disclosure of Invention In view of the shortcomings of the prior art, the utility model aims to provide a battery compartment based on a composite cooling technology, and aims to solve the problems that in the prior art, although heat can be led out of the inside of a battery, heat can still be accumulated on the outer surface of the battery, the battery compartment is difficult to rapidly cool, meanwhile, when a vehicle is suddenly braked or vibrated, the risk of explosion caused by collision of the battery is possibly caused by loosening of a liquid cooling pipeline, and potential safety hazards are aggravated. In order to achieve the above purpose, the utility model adopts the following technical scheme: The utility model provides a battery compartment based on compound cooling technique, includes safe box, the group battery of safe incasement portion loading, locates the liquid cooling circulation mechanism of the bottom of safe incasement group battery, locates the air cooling mechanism of safe box lateral wall, embedded thermal-insulated buffering cotton between safe box and group battery, locates the explosion-proof valve of group battery upper end and locates the control by temperature change subassembly in the safe box, wherein, air cooling mechanism is linked together with the external world. Further, the liquid cooling circulation mechanism comprises a phase change heat-conducting plate, a liquid cooling pipeline and a circulating heat-radiating pipeline, the phase change heat-conducting plate is arranged at the bottom of the battery pack and is in direct contact with the battery pack, the liquid cooling pipeline is circularly laid at the bottom of the safety box, the output end of the liquid cooling pipeline is connected to the circulating heat-radiating pipeline, and the circulating heat-radiating pipeline penetrates through the safety box and is connected to an external liquid cooling circulating pump. Further, the air cooling heat dissipation mechanism comprises a variable frequency energy-saving fan and heat dissipation pipes, wherein the variable frequency energy-saving fan is arranged on the side wall of the safety box, and the heat d