Search

CN-121983740-A - Energy storage equipment

CN121983740ACN 121983740 ACN121983740 ACN 121983740ACN-121983740-A

Abstract

The invention belongs to the technical field of energy storage, and discloses energy storage equipment which comprises a shell, a battery module, a battery support and a damping support, wherein the shell defines an installation cavity, a plurality of limiting structures are convexly arranged on the inner wall of the installation cavity, a plurality of first limiting grooves are defined by the limiting structures, the battery module comprises a plurality of electric cores, each electric core comprises a body, a first end and a second end, the first ends of the electric cores are inserted into the first limiting grooves, the battery support defines a plurality of second limiting grooves, the second ends of the electric cores are inserted into the second limiting grooves, the damping support is provided with a plurality of electric core cavities which are arranged in a penetrating mode, elastic structures are arranged on the inner peripheral wall of each electric core cavity, and the electric cores penetrate through the electric core cavities and deform to clamp the electric cores. The energy storage equipment can better compensate for the machining tolerance of the battery core and the machining tolerance of the shell, ensures the installation stability of the battery core, has good damping performance, and can be compatible with battery cores with different sizes.

Inventors

  • HU CHAO
  • SHEN GAOSONG
  • SUN ZHONGWEI

Assignees

  • 深圳市华宝新能源股份有限公司

Dates

Publication Date
20260505
Application Date
20260303

Claims (10)

  1. 1. An energy storage device, comprising: The shell is used for defining an installation cavity, a plurality of limiting structures are arranged on the inner wall of the installation cavity in a protruding mode, and a plurality of first limiting grooves are defined by the limiting structures; the battery module comprises a plurality of battery cells, wherein each battery cell comprises a body, a first end and a second end, the first ends and the second ends are arranged on two sides of the body, the first ends of the battery cells are inserted into the first limit grooves, and the positive electrode and the negative electrode of each battery cell are arranged at the second ends of the battery cells; the battery bracket is arranged in the mounting cavity, the battery bracket defines a plurality of second limit grooves, and the second ends of the battery cells are inserted into the second limit grooves; The damping support is sleeved on the body of the battery cell, the damping support is provided with a plurality of battery cell cavities which are arranged in a penetrating mode, elastic structures are arranged on the inner peripheral walls of the battery cell cavities, the battery cell penetrates through the battery cell cavities, and the elastic structures deform to clamp the battery cell.
  2. 2. The energy storage device of claim 1, wherein the number of elastic structures is a plurality, and the plurality of elastic structures are spaced apart along the circumferential direction of the cell cavity.
  3. 3. The energy storage device of claim 1, wherein a clamping groove penetrating along the radial direction of the electric core cavity is formed in the peripheral wall of the electric core cavity, the elastic structure comprises an elastic arm which is arranged in the clamping groove and integrally formed with the shock absorption support, and two sides of the elastic arm are arranged at intervals with the inner side wall of the clamping groove along the circumferential direction of the electric core cavity.
  4. 4. The energy storage device of claim 3, wherein the elastic arm comprises a clamping portion and an extending portion connected to each other, one end of the clamping portion is connected to an inner wall of the clamping groove along an axial direction of the electrical core cavity, the other end of the clamping portion is connected to the extending portion, and a thickness of the clamping portion is greater than a thickness of the extending portion along a radial direction of the electrical core cavity.
  5. 5. The energy storage device of claim 4, wherein the clamping portion has a guiding bevel and a clamping cambered surface, the clamping cambered surface is disposed near the extension portion, and the clamping cambered surface can be stopped against an outer side wall of the battery cell to clamp the battery cell.
  6. 6. The energy storage device of any of claims 1-5, further comprising an ac-dc conversion circuit board secured within the mounting cavity and electrically connected to the battery module for electrical energy conversion.
  7. 7. The energy storage device of claim 6, wherein the battery module further comprises a connection row disposed at a first end of the battery cells, the connection row being in welded connection with a plurality of the battery cells such that a plurality of the battery cells are connected in series and/or in parallel, the connection row being electrically connected with the ac-dc conversion circuit board.
  8. 8. The energy storage device of claim 6, wherein the ac-dc conversion circuit board is provided with a plurality of limiting holes, and the battery support is provided with limiting hooks and limiting columns matched with the limiting holes.
  9. 9. The energy storage device of any of claims 1-5, wherein the housing comprises a first shell and a second shell, the spacing structure is disposed on the second shell, the second shell has a first connection post extending along a height direction of the electrical core, and the battery support is connected to the first connection post.
  10. 10. The energy storage device of any of claims 1-5, wherein the housing further comprises a panel having a display screen and an output interface disposed thereon, the output interface comprising at least one of a DC outlet, an AC outlet, and a vehicle charging port.

Description

Energy storage equipment Technical Field The invention relates to the technical field of energy storage, in particular to energy storage equipment. Background In the prior art, the energy storage device is formed by assembling parts such as a battery core module, a battery bracket, a shell (comprising a front shell and a rear shell), an inverter, an alternating current-direct current conversion circuit board and the like. The battery module of the prior art is generally formed by clamping and fixing two battery cell brackets, the battery cell brackets can be provided with more positioning columns relatively, and the deformation degree is larger, so that the battery cell can be better and more stably connected with the clamping function of the battery cell, the two sides of the battery module are generally welded with connecting rows, and the connecting rows can further improve the stability of battery connection. However, with the development of light weight and portability, the structure of the energy storage devices of the two battery cell brackets is complex, which is unfavorable for the development of light weight and then change. Therefore, a structure for directly plugging the battery module on the shell is developed in the prior art, however, the tolerance ranges of the diameter and the height of the existing battery cells are larger, the highest position of the CPK value curve of the battery cell tolerance is basically selected for design when the shell is used for designing the battery cell assembly cavity, and thus, each battery cell can be assembled on the shell. However, the tolerance size of the assembled battery cell is large, and a certain machining tolerance exists in the shell, so that the phenomenon that the assembled battery cell shakes in the shell is caused, noise exists in the transportation and use processes, and the fault probability of the energy storage device can be improved due to the unstable battery cell. Disclosure of Invention The invention aims to provide energy storage equipment which can well compensate for machining tolerances of battery cells and machining tolerances of shells, ensure the mounting stability of the battery cells, has good damping performance and can be compatible with the battery cells with different sizes. To achieve the purpose, the invention adopts the following technical scheme: The invention discloses energy storage equipment which comprises a shell, a battery module and a battery bracket, wherein the shell defines an installation cavity, a plurality of limiting structures are convexly arranged on the inner wall of the installation cavity, a plurality of first limiting grooves are defined by the limiting structures, the battery module comprises a plurality of battery cores, each battery core comprises a body, a first end and a second end which are arranged on two sides of the body, the first end of each battery core is inserted into the first limiting groove, the positive electrode and the negative electrode of each battery core are respectively arranged at the second end of each battery core, the battery bracket is arranged in the installation cavity, the battery bracket defines a plurality of second limiting grooves, the second ends of the battery cores are inserted into the second limiting grooves, the damping bracket is sleeved on the body of each battery core, the damping bracket is provided with a plurality of through-arranged battery core cavities, elastic structures are respectively arranged on the inner peripheral wall of each battery core cavity, and the battery cores penetrate through the battery core cavities, and the elastic structures are tightly clamped by the battery cores. In some embodiments, the elastic structures are a plurality of, and the elastic structures are arranged at intervals along the circumferential direction of the electric core cavity. In some embodiments, the peripheral wall of the electric core cavity is provided with a clamping groove penetrating along the radial direction of the electric core cavity, the elastic structure comprises an elastic arm which is arranged in the clamping groove and integrally formed with the shock absorption support, and two sides of the elastic arm are arranged at intervals with the inner side wall of the clamping groove along the circumferential direction of the electric core cavity. In some specific embodiments, the elastic arm includes a clamping portion and an extending portion connected to each other, and one end of the clamping portion is connected to an inner wall of the clamping groove along an axial direction of the electrical core cavity, and the other end of the clamping portion is connected to the extending portion, and a thickness of the clamping portion is greater than a thickness of the extending portion along a radial direction of the electrical core cavity. In some more specific embodiments, the clamping portion has a guiding inclined plane and a clamping cambered surfac