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CN-122025886-A - Energy storage module

CN122025886ACN 122025886 ACN122025886 ACN 122025886ACN-122025886-A

Abstract

The application discloses an energy storage module which comprises a shell, a support piece, a water inlet detection module and a water storage module, wherein the shell is limited with a containing cavity used for containing an energy storage battery, the bottom of the containing cavity is provided with a diversion surface and a diversion hole, the diversion hole is positioned at the lowest point of the diversion surface, the support piece is arranged at the bottom of the shell and used for supporting the shell, a water receiving groove is limited in the support piece and is communicated with the containing cavity through the diversion hole, and the water inlet detection module is used for obtaining water level information in the water receiving groove. According to the energy storage module provided by the embodiment of the application, the water inlet detection module capable of acquiring the water level information in the water receiving tank is arranged, so that the water inlet detection of the energy storage module can be realized, the probability that a battery positioned in the shell is damaged or fires and explosions are caused due to the water inlet of the accommodating cavity is reduced, and the safety and reliability of the energy storage module are improved.

Inventors

  • GE ZUZHI
  • XIAO JING
  • WANG CAOYANG
  • DONG WENGONG
  • CHEN LEI

Assignees

  • 阳光电源股份有限公司

Dates

Publication Date
20260512
Application Date
20241112

Claims (15)

  1. 1. An energy storage module (100), characterized by comprising: the energy storage device comprises a shell (10), wherein the shell (10) is defined with a containing cavity (13), the containing cavity (13) is used for containing an energy storage battery, a flow guide surface (131) and a flow guide hole (132) are formed in the bottom of the containing cavity (13), and the flow guide hole (132) is located at the lowest point of the flow guide surface (131); The support piece (20) is arranged at the bottom of the shell (10) and used for supporting the shell (10), a water receiving groove (211) is defined in the support piece (20), and the water receiving groove (211) is communicated with the accommodating cavity (13) through the flow guide hole (132); And the water inlet detection module (30) is used for acquiring water level information in the water receiving tank (211).
  2. 2. The energy storage module (100) according to claim 1, wherein the water inlet detection module (30) comprises a wire (31) and a detection resistor (32) connected to one end of the wire (31), the detection resistor (32) is electrically connected to a power source (35), and the other end of the wire (31) extends into the water receiving tank (211) and is suspended.
  3. 3. The energy storage module (100) according to claim 2, wherein the water inlet detection module (30) further comprises a water absorbing medium (33), the water absorbing medium (33) is disposed in the water receiving tank (211), a water passing gap (212) is formed between the water absorbing medium (33) and the side wall of the water receiving tank (211), a water storage cavity is formed between the water absorbing medium (33) and the bottom wall of the water receiving tank (211), the water passing gap (212) is communicated with the water storage cavity, and the other end of the wire (31) penetrates through the water absorbing medium (33) and stretches into the water storage cavity.
  4. 4. The energy storage module (100) according to claim 2 or 3, wherein the water inlet detection module (30) further comprises a voltage acquisition member (34), and the voltage acquisition member (34) is connected to two sides of the detection resistor (32) for acquiring a voltage value of the detection resistor (32).
  5. 5. The energy storage module (100) of claim 4, further comprising a control module in communication with the voltage acquisition member (34) and emitting a water inlet alarm message when a voltage value acquired by the voltage acquisition member (34) is greater than a detection threshold.
  6. 6. The energy storage module (100) of claim 4, further comprising a control module that issues a water intake alarm message or a water intake detection module (30) fault message when the voltage value collected by the voltage collection member (34) is greater than a detection threshold.
  7. 7. The energy storage module (100) according to claim 3, wherein the outer circumference of the water absorbing medium (33) forms a polygon, and the water receiving groove (211) is a circular groove.
  8. 8. The energy storage module (100) according to claim 1, wherein the flow guiding surfaces (131) comprise at least one set, each set comprising two flow guiding surfaces (131), each flow guiding surface (131) being a triangular inclined surface, each set of flow guiding surfaces (131) having one corresponding flow guiding hole (132), the flow guiding holes (132) corresponding to the lowest point of two flow guiding surfaces (131) of each set.
  9. 9. The energy storage module (100) according to claim 8, wherein a first ridge (11) and a second ridge (12) higher than the flow guiding hole (132) are arranged at the bottom of the accommodating cavity (13), the first ridge (11) and the second ridge (12) are arranged in a crossing manner, the flow guiding surfaces (131) comprise four groups, and each group of two flow guiding surfaces (131) is formed by surrounding the first ridge (11), the second ridge (12) and the shell (10).
  10. 10. The energy storage module (100) according to claim 1, wherein the support member (20) comprises a support body (21) and a blocking member (22), the support body (21) defining a drain opening in communication with the water receiving channel (211), the blocking member (22) being provided at the drain opening for opening and closing the drain opening.
  11. 11. The energy storage module (100) of claim 6, wherein the water inlet detection module (30) obtains the water level information of the water receiving tank (211) by detecting a voltage value of the detection resistor (32), comprising: collecting the voltage value Vt of the detection resistor (32) and judging the magnitudes of the Vt and the detection threshold V0; After Vt is larger than the detection threshold V0, judging the magnitudes of Vt and the upper limit voltage V; And when Vt is smaller than V, sending out water inlet alarm information.
  12. 12. The energy storage module (100) of claim 11, further comprising signaling a fault message for the water intake detection module when Vt is greater than or equal to V.
  13. 13. The energy storage module (100) of claim 11, further comprising, after Vt is greater than a detection threshold V0: continuously acquiring a voltage value Vt of the detection resistor (32) and determining an error delta between the voltage value Vt and the last acquired voltage value Vt; the statistical error delta is smaller than the number n of the upper limit error delta 0, and when the number n is larger than or equal to the preset number n0, the magnitudes of Vt and the upper limit voltage V are judged.
  14. 14. The energy storage module (100) of claim 11, further comprising: when Vt is smaller than or equal to the detection threshold V0, sending out no-water-inlet information; the water level is re-detected.
  15. 15. The energy storage module (100) of claim 13, further comprising: and re-detecting the water level when delta is greater than or equal to the upper limit error delta 0.

Description

Energy storage module Technical Field The application relates to the technical field of energy storage systems, in particular to an energy storage module. Background In the related art, the existing modularized household energy storage system generally separates components such as a structural support piece, a module and a controller, so that the transportation is convenient, but the modularized household energy storage system is easy to enter water after being assembled, the safety risks of electric shock or battery damage and even fire explosion are increased, and the improvement space exists. Disclosure of Invention The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present application is to provide an energy storage module, which can implement water inlet detection of the energy storage module, and can improve safety and reliability of the energy storage module. The energy storage module comprises a shell, a supporting piece, a water receiving groove and a water inlet detection module, wherein the shell is limited with a containing cavity which is used for containing an energy storage battery, the bottom of the containing cavity is provided with a diversion surface and a diversion hole, the diversion hole is located at the lowest point of the diversion surface, the supporting piece is arranged at the bottom of the shell and used for supporting the shell, the water receiving groove is limited in the supporting piece and is communicated with the containing cavity through the diversion hole, and the water inlet detection module is used for obtaining water level information in the water receiving groove. According to the energy storage module, the water at the bottom of the accommodating cavity can be guided into the water receiving tank to be convenient to discharge by arranging the guide surface at the bottom of the accommodating cavity and the guide hole at the lowest point of the guide surface, and the water inlet detection module capable of acquiring the water level information in the water receiving tank can be used for detecting the water inlet of the energy storage module, so that the probability that a battery in the shell is damaged or fires and explosions are caused due to the water inlet of the accommodating cavity is reduced, and the safety and reliability of the energy storage module are improved. Compared with the water inlet state detection method by setting the humidity sensor or the liquid sensor, the water inlet detection module can realize water inlet detection of the energy storage module by acquiring water level information in the water receiving tank, so that the influence of air humidity and water drop splashing on the water inlet detection module can be reduced, and the accuracy and reliability of water inlet detection of the energy storage module can be improved. According to some embodiments of the application, the water inlet detection module comprises a wire and a detection resistor connected to one end of the wire, the detection resistor is electrically connected with a power supply, and the other end of the wire stretches into the water receiving groove and is suspended. According to some embodiments of the application, the water inlet detection module further comprises a water absorbing medium, the water absorbing medium is arranged in the water receiving tank, a water passing gap is formed between the water absorbing medium and the side wall of the water receiving tank, a water storage cavity is formed between the water absorbing medium and the bottom wall of the water receiving tank, the water passing gap is communicated with the water storage cavity, and the other end of the wire penetrates through the water absorbing medium and stretches into the water storage cavity. According to some embodiments of the application, the water inlet detection module further comprises a voltage acquisition component, wherein the voltage acquisition component is connected with two sides of the detection resistor and used for acquiring a voltage value of the detection resistor. In some embodiments, the energy storage module further comprises a control module, wherein the control module is in communication with the voltage acquisition part and sends out water inflow alarm information when the voltage value acquired by the voltage acquisition part is greater than a detection threshold value. In some embodiments, the control module sends out water inflow alarm information or water inflow detection module fault information when the voltage value acquired by the voltage acquisition part is greater than a detection threshold value. According to some embodiments of the application, the outer circumference of the water absorbing medium forms a polygon, and the water receiving groove is a circular groove. According to some embodiments of the application, the diversion surfaces comprise at least one group, each group comp