CN-120886675-B - Energy-storage type charging and replacing cabinet

CN120886675BCN 120886675 BCN120886675 BCN 120886675BCN-120886675-B

Abstract

The invention relates to an energy storage type charging and replacing cabinet, belongs to the technical field of energy storage, and solves the problem that in the prior art, when a battery is in thermal runaway in a charging process, cooling uniformity is poor, and a cooling effect is poor. The battery charging device comprises an energy storage charging unit and a cabinet body, wherein the energy storage charging unit is used for charging a battery, the energy storage charging unit comprises a box body and a partition plate, the box body is divided into a battery accommodating bin and a water storage bin by the partition plate, the battery accommodating bin is used for accommodating the battery, cooling water is filled in the water storage bin, the partition plate can bear the battery when the battery is normally charged, and can be opened when the battery is out of control, so that the battery automatically slides into the water storage bin under the action of gravity and is immersed in the cooling water. According to the invention, the battery is directly immersed in the cooling water, so that a faster and more uniform cooling effect can be realized, further diffusion of thermal runaway is effectively prevented, and the management efficiency of the thermal runaway of the battery is remarkably improved.

Inventors

ZHAO LIHONG
LI YANLONG
FANG PING
JIA CHENXI
LI BAOZONG

Assignees

建研防火科技有限公司
河南理工大学

Dates

Publication Date: 20260512
Application Date: 20250916

Claims (4)

1. The energy storage type charging and replacing cabinet is characterized by comprising an energy storage charging unit and a cabinet body, wherein the energy storage charging unit is arranged in the cabinet body and is used for charging a battery; The energy storage charging unit comprises a box body and a baffle plate, wherein the baffle plate is arranged in the box body and divides the box body into a battery accommodating bin and a water storage bin, the battery accommodating bin is used for accommodating a battery, and cooling water is filled in the water storage bin; The partition plate comprises a first blade, a second blade and a thermal switch, wherein the thermal switch is used for controlling the first blade and the second blade to be opened according to temperature change in the box body, a tongue locking groove is formed in the first blade, a mounting groove is formed in the second blade, the thermal switch comprises a lock tongue, a rollback spring and a propping piece, the lock tongue is mounted in the mounting groove and can be inserted into or withdrawn from the tongue locking groove, the rollback spring is mounted in the mounting groove and is used for applying elastic tension to the lock tongue, one end of the propping piece is abutted against the lock tongue, the other end of the propping piece is abutted against the inner wall of the mounting groove, the propping piece is used for supporting the lock tongue, the propping piece comprises a propping glass body, and the propping glass body is filled with a thermal expansion agent; The jacking piece comprises an axial shock absorber, the axial shock absorber comprises a first shock absorption spring and a second shock absorption spring, the first shock absorption spring and the second shock absorption spring are respectively and fixedly arranged at two ends of the jacking glass body, and vibration and impact along the axial direction of the jacking glass body can be buffered by arranging the first shock absorption spring and the second shock absorption spring; the jacking piece further comprises a radial shock absorber, the radial shock absorber comprises a plurality of shock absorbing elastic pieces, and the shock absorbing elastic pieces are uniformly arranged along the circumference of the jacking glass body, so that vibration and impact along the radial direction of the jacking glass body can be buffered; The energy storage charging unit further comprises a safety socket, the safety socket comprises a base, an adapter seat, a disconnection spring and a trigger, the base is fixedly arranged in the battery accommodating bin and connected with the power system, the adapter seat is arranged in the base and can be connected with a plug of the battery in an inserting mode and connected with the power system through the base, one end of the disconnection spring is fixedly arranged in the base, the other end of the disconnection spring is abutted to the adapter seat, the disconnection spring is used for always applying elastic thrust to the adapter seat, the trigger penetrates through the base and penetrates through the adapter seat to be used for locking the adapter seat, the trigger is further connected with the second blade, and the action of the trigger is controlled through rotation of the second blade to release the locking of the adapter seat.
2. The energy storage type charging and changing cabinet according to claim 1, wherein the first blade plate and the second blade plate are rotatably installed in the box body.
3. The energy storage type charging and replacing cabinet according to claim 2, wherein the locking tongue groove is arranged opposite to the mounting groove.
4. The energy storage type charging and replacing cabinet according to claim 3, further comprising an alarm unit, wherein the alarm unit comprises a smoke alarm, an alarm indicator light and a PLC.

Description

Energy-storage type charging and replacing cabinet Technical Field The invention relates to the technical field of energy storage, in particular to an energy storage type charging and replacing cabinet. Background Along with the rapid development of new energy industry, the demand of the matched energy storage type charging and changing cabinet is also increasing. The energy storage type charging and replacing cabinet is used as core bearing and guaranteeing equipment in the battery charging process, the safety performance of the energy storage type charging and replacing cabinet is directly related to the stability and safety of the charging process, and particularly the problem of battery thermal runaway possibly occurring in the battery charging process is a key technical bottleneck for restricting the development of the energy storage type charging and replacing cabinet. In current energy storage type charging cabinet technical field, to the thermal runaway condition that probably takes place when battery charges, the prior art generally adopts the mode of spray cooling to deal with. The core principle of the technology is that a spraying device is arranged in an energy storage type charging and replacing cabinet, when the battery is detected to have thermal runaway signs (such as temperature sudden rise, smoke generation and the like), the spraying device is started, and cooling water is sprayed to the battery in thermal runaway so as to achieve the purpose of cooling. However, long-term practical application finds that the existing thermal runaway coping technology based on the spraying mode has the problems of low cooling efficiency and non-uniformity, and in the spraying process, cooling water mainly sprays from top to bottom to cover the surface of a battery, is limited by a spraying angle, water pressure and a battery self structure (such as shielding of a battery shell and the like), and is difficult to uniformly cover all heating areas of the battery, particularly the bottom, the side surface and the gaps inside a battery pack of the battery, so that cooling dead angles are easy to form. The existence of the cooling dead angles leads to the fact that the local temperature of the battery cannot be reduced in time, so that the integral cooling effect is affected, and the battery can become a hidden danger point for further diffusion of thermal runaway. Disclosure of Invention In view of the above analysis, the present invention is directed to a battery unit, which is used to solve the problem of poor cooling effect caused by poor cooling uniformity in the thermal runaway process of the battery in the prior art. The aim of the invention is mainly realized by the following technical scheme: The energy storage charging unit comprises a box body and a partition plate, wherein the partition plate is arranged in the box body and divides the box body into a battery accommodating bin and a water storage bin, the battery accommodating bin is used for accommodating batteries, cooling water is filled in the water storage bin, the partition plate can bear the batteries when the batteries are normally charged, and the partition plate can be opened when the batteries are out of control, so that the batteries automatically slide into the water storage bin under the action of gravity and are immersed in the cooling water. Further, the partition plate comprises a first blade plate and a second blade plate, and the first blade plate and the second blade plate are rotatably installed in the box body. Further, the partition plate further comprises a thermal switch, and the thermal switch is used for controlling the first blade plate and the second blade plate to be opened according to temperature change in the box body. Further, the first blade plate is provided with a tongue locking groove, and the second blade plate is provided with a mounting groove. Further, the latch groove is arranged opposite to the mounting groove. Further, the thermal switch comprises a lock tongue, a rollback spring and a puller. Further, the lock tongue is installed in the installation groove and can be inserted into or withdrawn from the lock tongue groove. Further, the rollback spring is arranged in the mounting groove and is used for applying elastic tension to the lock tongue. Further, one end of the jacking piece is abutted with the lock tongue, the other end of the jacking piece is abutted with the inner wall of the mounting groove, and the jacking piece is used for supporting the lock tongue. Further, the intelligent smoke alarm system also comprises an alarm unit, wherein the alarm unit comprises a smoke alarm, an alarm indicator lamp and a PLC. Further, the propping piece comprises a propping glass body, wherein a thermosensitive expanding agent is contained in the propping glass body, and when a fire disaster is caused by thermal runaway of the battery, the thermosensitive expanding agent expands due to heating, so that the propp