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CN-122025987-A - Energy storage explosion venting device and container type energy storage system

CN122025987ACN 122025987 ACN122025987 ACN 122025987ACN-122025987-A

Abstract

The application relates to the technical field of energy storage, and discloses an energy storage explosion venting device and a container type energy storage system. The energy storage explosion venting device comprises a box body, a plurality of matching pieces and a plurality of explosion venting structures. The box is provided with and holds the chamber to and hold a plurality of mounting holes of chamber intercommunication. A plurality of mating members are disposed within the receiving chamber. The fitting piece comprises a first fitting part and a second fitting part which are connected, the first fitting part is matched with the inner wall surface of the box body to form a first channel, the first fitting part is provided with a plurality of through holes, and one ends of the through holes are communicated with the first channel. The second matching part is matched with the inner wall surface of the box body to form a second channel, and the second channel is communicated with the first channel. The explosion venting structures are connected with the box body and are arranged towards the second channel through the mounting holes. The energy storage explosion venting device and the container type energy storage system provided by the application can be beneficial to enabling the energy storage device to timely finish the release of internal pressure so as to improve the safety in the use process.

Inventors

  • SUN XUEBING
  • LIU SHUOZHEN

Assignees

  • 浙江晶科储能有限公司

Dates

Publication Date
20260512
Application Date
20260408

Claims (15)

  1. 1. An energy storage explosion venting device, comprising: the box body is provided with a containing cavity and a plurality of mounting holes communicated with the containing cavity; the plurality of matching pieces are arranged in the accommodating cavity, each matching piece comprises a first matching part and a second matching part which are connected, the first matching parts are matched with the inner wall surface of the box body to form a first channel, the first matching parts are provided with a plurality of through holes, one ends of the through holes are communicated with the first channel, the second matching parts are matched with the inner wall surface of the box body to form a second channel, and the second channel is communicated with the first channel; The explosion venting structures are connected with the box body, the explosion venting structures are arranged towards the second channel through the mounting holes, the explosion venting structures can be changed between a first state and a second state, when the explosion venting structures are in the first state, the pressure in the second channel does not exceed a preset value, the explosion venting structures are sealed at the mounting holes, and when the explosion venting structures are in the second state, the explosion venting structures at least open part of the mounting holes so as to release the pressure to the outside.
  2. 2. The energy storage explosion venting device of claim 1, wherein the first mating portions of the plurality of mating members are disposed in abutment with a same inner wall surface of the case, the second mating portions of the plurality of mating members are disposed in abutment with a same inner wall surface of the case, and the first mating portions and the second mating portions are disposed in abutment with different inner wall surfaces of the case.
  3. 3. The energy storage explosion venting device of claim 1 or 2, wherein the case comprises a first side wall and a second side wall disposed opposite to each other, and the first mating portion abuts against the second side wall.
  4. 4. The energy storage explosion venting apparatus of claim 3, wherein an edge of the second mating portion distal from the first mating portion is spaced from the first sidewall.
  5. 5. The energy storage explosion venting device of claim 4, wherein a pressure relief pipe is disposed in the tank, the pressure relief pipe is in communication with the plurality of second channels, and the pressure relief pipe is located on a side of the second mating portion away from the first mating portion.
  6. 6. The energy storage explosion venting apparatus of claim 5, wherein a control valve is disposed in a communication path between the pressure relief conduit and the second passage.
  7. 7. The energy storage and explosion venting device according to claim 1 or 2, wherein the first mating portion comprises a first partition portion and a first extension portion protruding from one side of the first partition portion, a portion of an edge of the first partition portion is connected to the second mating portion, and the first extension portion is disposed along another portion of an edge of the first partition portion.
  8. 8. The energy storage explosion venting apparatus of claim 7, wherein the second mating portion includes a second divider and a second extension portion protruding from a side of the second divider, the second divider interfacing with the first divider, the second extension portion interfacing with the first extension portion.
  9. 9. An energy storage explosion venting apparatus according to claim 1 or claim 2, wherein there is a space between two adjacent mating members.
  10. 10. The energy storage explosion venting apparatus of claim 9, wherein a plurality of mounting structures are disposed within the receiving cavity, the mounting structures being located between adjacent ones of the mating members.
  11. 11. The energy storage explosion venting apparatus of claim 10, wherein an end of the mounting structure proximate the mounting aperture is flush with an edge of the second mating portion proximate the mounting aperture.
  12. 12. The energy storage explosion venting apparatus of claim 1, wherein a one-way valve is disposed between two adjacent second channels, the one-way valve controlling fluid flow from one of the two adjacent second channels to the other.
  13. 13. A container-type energy storage system, comprising: The energy storage explosion venting apparatus of any one of claims 1 to 12; The battery clusters are arranged in the box body of the energy storage explosion venting device and correspond to the arrangement of the first matching parts of the energy storage explosion venting device, each battery cluster comprises a plurality of battery packs, each battery pack is provided with a first pressure relief structure, and the first pressure relief structure faces to the through hole of each first matching part.
  14. 14. The container-type energy storage system of claim 13, wherein the battery pack is provided with a second pressure relief structure, the second pressure relief structure and the first pressure relief structure being disposed toward different interior wall surfaces of the tank, the second pressure relief structure having a cracking pressure that is less than a cracking pressure of the first pressure relief structure.
  15. 15. The container-type energy storage system of claim 13, wherein the battery pack is provided with a protrusion that surrounds the first pressure relief structure therein.

Description

Energy storage explosion venting device and container type energy storage system Technical Field The application relates to the technical field of energy storage, in particular to an energy storage explosion venting device and a container type energy storage system. Background Along with the continuous development of new energy technology, the capability of various power generation devices for converting electric energy is continuously improved, and the application of the energy storage device is also becoming wider and wider. The energy storage device can store the energy which is converted by various power generation devices so as to output the energy outwards at any time. Along with the continuous improvement of the capacity of the energy storage device, the safety of the energy storage device in the running process is also more and more important. The energy storage device comprises a large number of electric cores, and the electric cores are easy to cause serious dangerous accidents such as explosion, deflagration and the like when thermal runaway occurs. Therefore, how to make the energy storage device complete the release of the internal pressure in time to improve the safety in the use process is an important problem. Disclosure of Invention The embodiment of the application aims to provide an energy storage explosion venting device and a container type energy storage system, which can be beneficial to enabling the energy storage device to timely finish releasing internal pressure so as to improve safety in the use process. In order to solve the technical problems, the embodiment of the application provides an energy storage explosion venting device. The energy storage explosion venting device comprises a box body, a plurality of matching pieces and a plurality of explosion venting structures. The box is provided with and holds the chamber to and hold a plurality of mounting holes of chamber intercommunication. A plurality of mating members are disposed within the receiving chamber. The fitting piece comprises a first fitting part and a second fitting part which are connected, and the first fitting part is matched with the inner wall surface of the box body to form a first channel. The first matching part is provided with a plurality of through holes, and one ends of the through holes are communicated with the first channel. The second matching part is matched with the inner wall surface of the box body to form a second channel, and the second channel is communicated with the first channel. The explosion venting structures are connected with the box body and are arranged towards the second channel through the mounting holes. The explosion venting structure is changeable between a first state and a second state. When the explosion venting structure is in the first state, the pressure in the second channel does not exceed a preset value, and the explosion venting structure is sealed at the mounting hole. When the explosion venting structure is in the second state, the explosion venting structure at least opens part of the mounting holes to release pressure to the outside. The embodiment of the application also provides a container type energy storage system. The container type energy storage system comprises the energy storage explosion venting device and a plurality of battery clusters. The battery clusters are arranged in the box body of the energy storage explosion venting device and correspond to the first matching parts of the energy storage explosion venting device. The battery cluster includes a plurality of battery packs, and the battery pack is provided with first pressure release structure, and first pressure release structure sets up towards the through-hole of first cooperation portion. According to the energy storage explosion venting device and the container type energy storage system, the independent matching piece is arranged in the box body, and the first channel and the second channel formed at the matching piece can be matched with the explosion venting structure on the box body to play a role in protection. The through hole at the first channel can release high-pressure fluid generated along with thermal runaway into the first channel when the thermal runaway phenomenon occurs in the battery cell in the battery pack. And moreover, the first channel and the second channel can be arranged corresponding to different battery clusters, so that the release of internal pressure can be timely completed, and the protection effect is effectively achieved, so that the safety in the use process is improved. In some embodiments, the first mating portion of the plurality of mating members is disposed in abutment with a same inner wall surface of the case, the second mating portion of the plurality of mating members is disposed in abutment with a same inner wall surface of the case, and the first mating portion and the second mating portion are in abutment with different inner wall surfaces of th