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CN-122000538-A - Side liquid cooling immersed battery box

CN122000538ACN 122000538 ACN122000538 ACN 122000538ACN-122000538-A

Abstract

The invention discloses a side liquid cooling immersed battery box, which is characterized in that a battery cell module is directly immersed in immersion liquid, so that a heating source battery cell, an aluminum row and the like are in direct and full contact with the immersion liquid, heat dissipation is more uniform and efficient, the temperature gradient of a battery can be effectively reduced, and the local overheating phenomenon is reduced. Compared with the traditional liquid cooling battery box, namely, a mode of cooling only by utilizing a bottom cooling water channel, the novel cooling scheme has the advantages of more obvious cooling effect and uniform heat dissipation, because the contact conduction of the side liquid cooling device has larger contact surface area, the heat exchange can be more efficiently carried out, the problem of pain points of 'head hot and foot cold' of the battery core in the traditional liquid cooling is solved, and the service life and the charging efficiency of the battery core are prolonged. And compared with the scheme of cooling circulation dynamic oil, the method has lower cost and higher reliability.

Inventors

  • WANG HAIMEI

Assignees

  • 广州宇成智能科技有限公司

Dates

Publication Date
20260508
Application Date
20260206

Claims (7)

  1. 1. The side liquid cooling immersed battery box is characterized in that a battery module is arranged in an inner cavity of the battery box and immersed in immersion liquid, the battery module further comprises side liquid cooling devices, the side liquid cooling devices are located on two sides of the battery module, the battery module is provided with a plurality of groups, the side liquid cooling devices are provided with a plurality of groups, the side liquid cooling devices located on the inner side are used for feeding liquid, and the side liquid cooling devices located on the two sides are used for returning liquid.
  2. 2. The side liquid cooling submerged battery box according to claim 1, wherein the side liquid cooling device comprises a plurality of hollow calandria arranged in parallel and a first-stage distributing pipe arranged at two ends of the hollow calandria, the first-stage distributing pipe is arranged in a hollow mode, the end parts of the hollow calandria arranged in the hollow mode are communicated with the first-stage distributing pipe, meanwhile, the top of the first-stage distributing pipe is communicated with an elbow pipe, the side liquid cooling device further comprises a rear end main pipe, a front end liquid inlet main pipe and a front end liquid return main pipe, the elbows of the rear ends of the plurality of groups of side liquid cooling devices are communicated with the rear end main pipe, the rear end main pipe is arranged outside the rear end of the battery box, the front end liquid inlet main pipe and the front end liquid return main pipe are both arranged outside the front end of the battery box, the elbows of the front ends of the side liquid cooling devices positioned inside the plurality of groups of side liquid cooling devices are communicated with the front end liquid inlet main pipe, and the elbows of the side liquid cooling devices positioned outside the side liquid cooling devices are communicated with the front end liquid return main pipe.
  3. 3. The side liquid cooled submerged battery box of claim 2, wherein the front liquid inlet manifold and the front liquid return manifold are further provided with a liquid inlet and a liquid return port in communication respectively.
  4. 4. The side-cooled submerged battery compartment of claim 2, wherein the side-cooled device is integrally formed by extruding profiles into pipes and then welding.
  5. 5. The side-cooled submerged battery box of claim 2, wherein the side-cooled device is formed by stamping and then welding profiles through sheet metal.
  6. 6. The side liquid cooling immersed battery box according to claim 2, wherein the side liquid cooling device is formed by bending and welding aluminum pipes, copper pipes and other metal pipes.
  7. 7. The side-cooled submerged battery compartment of claim 2, wherein the side-cooled device is injection molded or extrusion molded from plastic.

Description

Side liquid cooling immersed battery box Technical Field The invention relates to the field of battery boxes, in particular to a side liquid cooling immersed battery box. Background The battery module can generate heat when charging and discharging, the service life of the battery can be seriously reduced due to overhigh temperature and unbalanced local temperature in the battery, and the heat dissipation performance of the battery module is an important factor affecting the working performance, the working efficiency, the service life and the safety of the battery. At present, the existing liquid cooling battery box structure is provided with a cooling water channel at the bottom for cooling and radiating, but the problem that the temperature of the battery core is high and low can occur, so that the temperature range of battery operation and the energy efficiency of the whole battery box are greatly reduced, the service life of the battery is shortened, and even potential safety hazards can be caused. The existing immersed battery box has the defects that the pressure change of a circulating pipeline is large due to the fact that the difference of the mobility of immersion liquid at different temperatures is large, the temperature consistency difference of circulating oil at different positions or areas is large, the circulating oil passes through a complicated path, the compatibility problems such as a sealing ring and the like, the material self characteristics and the like, the hidden danger of oil leakage, the after-sale difficulty is large, the cost is high, the equipment cost of circulating cooling oil is higher, and the volume and the mass energy density are not high. Therefore, there is a need for an improvement in such a structure to overcome the above-mentioned drawbacks. Disclosure of Invention The invention aims to provide a side liquid cooling immersed battery box so as to solve the problems in the background technology. In order to achieve the above purpose, the present invention provides the following technical solutions: In the scheme, the battery module is provided with a plurality of groups in total, the side liquid cooling devices are provided with a plurality of groups, wherein the side liquid cooling devices positioned on the inner side are used for feeding liquid, and the side liquid cooling devices positioned on the two sides are used for returning liquid; Further, the battery module is provided with four groups in total, the side liquid cooling devices are provided with five groups in total, three groups located on the inner side of the five groups of side liquid cooling devices are side liquid cooling devices used for liquid feeding, and two groups located on the outer side of the five groups of side liquid cooling devices are side liquid cooling devices used for liquid returning. Further, the side liquid cooling device comprises a plurality of hollow calandria arranged in parallel and first-stage distributing pipes positioned at two ends of the hollow calandria, the ends of the hollow calandria which are arranged in the same hollow way are communicated with the first-stage distributing pipes, meanwhile, the tops of the first-stage distributing pipes are communicated with bent pipes, the side liquid cooling device further comprises a rear-end main pipe, a front-end liquid inlet main pipe and a front-end liquid return main pipe, the bent pipes of the rear ends of the five groups of side liquid cooling devices are communicated with the rear-end main pipe, the rear-end main pipe is positioned at the outer side of the rear end of the battery box, the front-end liquid inlet main pipe and the front-end liquid return main pipe are positioned at the outer side of the battery box, the bent pipes of the front ends of the three groups of side liquid cooling devices positioned at the inner side of the five groups of side liquid cooling devices are communicated with the front-end liquid inlet main pipe, and the bent pipes of the two groups of side liquid cooling devices positioned at the outer side of the five groups of side liquid cooling devices are communicated with the front-end liquid return main pipe. Furthermore, the front-end liquid inlet main pipe and the front-end liquid return main pipe are also respectively communicated with a liquid inlet and a liquid return port. Furthermore, the side liquid cooling device is formed by extruding a section bar into a pipeline and then welding the pipeline into a whole. Furthermore, the side liquid cooling device is formed by stamping and then welding a section bar through a metal plate. Furthermore, the side liquid cooling device is formed by bending and welding other metal pipes such as an aluminum pipe, a copper pipe and the like. Further, the side liquid cooling device is formed by plastic injection molding or extrusion molding. Compared with the prior art, the invention has the beneficial effects that: The side liquid cooling scheme ensures th