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CN-224232828-U - Sodium ion vehicle power-on and power-off pond

CN224232828UCN 224232828 UCN224232828 UCN 224232828UCN-224232828-U

Abstract

The application discloses a sodium ion vehicle power-on and power-off battery which comprises a shell and a battery module arranged in the shell, wherein the shell comprises a bottom shell and an upper cover which are connected through a buckle structure, a heat insulation layer is arranged between the inner wall of the bottom shell and the battery module, the shape of the heat insulation layer is matched with that of an inner cavity of the bottom shell and can be in contact with the inner wall of the bottom shell, a fixing rib position protruding out of the inner wall surface of the bottom shell is fixedly arranged in the bottom shell, the fixing rib position is used for positioning the battery module, and a yielding groove for inserting the fixing rib position is formed in the heat insulation layer. According to the application, under the condition that the battery module is convenient to disassemble and overhaul, the heat-insulating layer does not influence the heat dissipation of the battery module, so that the heat dissipation performance and the heat-insulating effect are balanced, and the overhaul of the battery is not influenced.

Inventors

  • LIANG ZHIYONG
  • Luo Zhuliang

Assignees

  • 东莞市德富新能源有限公司

Dates

Publication Date
20260512
Application Date
20250530

Claims (10)

  1. 1. The sodium ion vehicle power on and off pool is characterized by comprising a shell and a battery module (1) arranged in the shell, wherein the shell comprises a bottom shell (2) and an upper cover (3) which are connected through a buckle structure (4), a heat insulation layer (7) is arranged between the inner wall of the bottom shell (2) and the battery module (1), and the shape of the heat insulation layer (7) is matched with the inner cavity of the bottom shell (2) and can be in contact with the inner wall of a base; The battery pack is characterized in that fixing rib positions (18) protruding the inner wall surface of the bottom shell (2) are fixedly arranged in the bottom shell (2), the fixing rib positions (18) are used for positioning the battery module (1), and the heat insulation layer (7) is provided with a yielding groove (19) for the fixing rib positions (18) to be inserted.
  2. 2. The sodium ion vehicle start-stop battery according to claim 1, wherein the heat insulation layer (7) is made of polypropylene microporous foam material.
  3. 3. The sodium ion vehicle start-stop battery according to claim 1, wherein a circle of glue spraying grooves (21) are formed in the bottom surface of the upper cover (3), and the positions of the glue spraying grooves (21) correspond to the upper end of the bottom shell (2).
  4. 4. The sodium ion vehicle start-stop battery according to claim 1, wherein the battery module (1) comprises a core group, a front connecting plate (8) arranged in front of the core group and a rear connecting plate (9) arranged behind the core group, wherein epoxy resin plates (10) are arranged between the front connecting plate (8) and the rear connecting plate (9) and the core group, and the epoxy resin plates (10), the front connecting plate (8), the rear connecting plate (9) and the core group are fixed through a plurality of screws (11); The front connecting plate (8) and the rear connecting plate (9) are respectively fixed with a positioning rib plate (20), the shape and the position of the positioning rib plates (20) are corresponding to the fixing rib positions (18), and the positioning rib plates (20) are fixedly connected with the fixing rib positions (18) through bolts.
  5. 5. The sodium ion vehicle start-stop battery of claim 4, wherein the core group comprises a battery core support (12) and a plurality of single battery cores (14), the battery core support (12) is provided with two battery cores, the battery cores are respectively arranged on the front side and the rear side of the single battery cores (14) and are positioned between the epoxy resin plate (10) and the single battery cores (14), and the single battery cores (14) are coaxially arranged in a rectangular array and are arranged on the battery core support (12).
  6. 6. The sodium ion vehicle start-stop battery of claim 5, wherein the core group further comprises a connecting sheet (13), and the single battery cells (14) are sleeved on the battery cell bracket (12) in series-parallel connection through the connecting sheet (13).
  7. 7. The sodium ion vehicle start-stop battery according to claim 4, wherein the battery module (1) further comprises a fixing plate (15), and a battery management module (22) is arranged on the fixing plate (15), and the battery management module (22) is used for adjusting the charging power of the battery.
  8. 8. The sodium ion vehicle start-stop battery according to claim 7, wherein the upper ends of the front connecting plate (8) and the rear connecting plate (9) are respectively provided with a positioning protrusion (16), the fixing plate (15) is provided with a positioning hole (17) for inserting the positioning protrusions (16), and the positioning protrusions (16) correspond to the positioning holes (17).
  9. 9. The sodium ion vehicle start-stop battery of claim 1, comprising a Bluetooth module and control software electrically connected with the Bluetooth module, wherein the control software is used for remotely starting and stopping the battery.
  10. 10. The sodium ion vehicle start-stop battery of claim 1, wherein a weak current switch (6) is arranged at the top of the upper cover.

Description

Sodium ion vehicle power-on and power-off pond Technical Field The application relates to the technical field of sodium ion batteries, in particular to a sodium ion vehicle starting and stopping battery. Background Conventional lead acid batteries pose environmental challenges due to their heavy weight, as they may release harmful substances during production and disposal, resulting in environmental pollution. In addition, the self-discharge rate of lead-acid batteries is relatively high, which reduces the service life and efficiency of the battery. Sodium ion batteries have received much attention in recent years as an environmentally friendly and resource-rich alternative. Compared with lead-acid batteries, the sodium ion battery reduces the dependence on lead resources, and has abundant sodium resources and less influence on environment. However, despite these advantages, sodium ion batteries still face some technical challenges in practical applications. In the current sodium ion battery design, heat insulating materials are often used for preventing thermal runaway and protecting the battery, but such materials are usually tightly combined with the battery module structure, which limits the disassembly and maintenance convenience of the battery to some extent. Once the battery needs maintenance or replacement, the entire module may need to be disassembled, increasing maintenance costs and complexity. Moreover, the application of the heat insulation material may affect the heat dissipation performance of the battery, and efficient heat dissipation is critical to maintaining the stable operation of the battery and prolonging the service life of the battery, and the conventional heat insulation measures often have difficulty in finding an ideal balance between ensuring safety and optimizing heat dissipation. On the other hand, in order to achieve water and dust resistance, sodium ion batteries typically employ a sealed housing design to ensure stable operation under a variety of environmental conditions. However, this seal design, while effective, sacrifices battery removability, making operation relatively difficult when component upgrades or troubleshooting are required. Disclosure of utility model Therefore, the application provides a sodium ion vehicle power-on and power-off battery to solve the problems that heat insulation and heat dissipation are difficult to balance and a heat insulation structure and a sealing structure are easy to influence battery disassembly in the prior art. In order to achieve the above object, the present application provides the following technical solutions: The sodium ion vehicle power on and off pool comprises a shell and a battery module arranged in the shell, wherein the shell comprises a bottom shell and an upper cover which are connected through a buckle structure, a heat insulation layer is arranged between the inner wall of the bottom shell and the battery module, and the shape of the heat insulation layer is matched with the inner cavity of the bottom shell and can be in contact with the inner wall of the base; the battery module is characterized in that a fixing rib position protruding out of the inner wall surface of the bottom shell is fixedly arranged in the bottom shell and used for positioning the battery module, and a yielding groove for the fixing rib position to be inserted is formed in the heat insulation layer. Optionally, the heat insulation layer is made of polypropylene microporous foam material. Optionally, a circle of glue spraying groove is formed in the bottom surface of the upper cover, and the position of the glue spraying groove corresponds to the upper end of the bottom shell. Optionally, the battery module comprises a core group, a front connecting plate arranged in front of the core group and a rear connecting plate arranged behind the core group, wherein epoxy resin plates are arranged between the front connecting plate and the core group and between the rear connecting plate and the core group, and the epoxy resin plates, the front connecting plate, the rear connecting plate and the core group are fixed through a plurality of screws; The front connecting plate and the rear connecting plate are respectively fixed with a positioning rib plate, the shape and the position of each positioning rib plate are corresponding to the position of each fixing rib, and the positioning rib plates are fixedly connected with the positions of the fixing ribs through bolts. Optionally, the core group comprises a cell support and a plurality of single cells, wherein two cell supports are arranged on the front side and the rear side of the single cells respectively and are arranged between the epoxy resin plate and the single cells, and the single cells are coaxially arranged in a rectangular array and are arranged on the cell support. Optionally, the core group further comprises a connecting sheet, and the single battery cells are sleeved on the battery cell