CN-224232785-U - Battery pack sheet metal assembly structure of solid sodium battery

CN224232785UCN 224232785 UCN224232785 UCN 224232785UCN-224232785-U

Abstract

The utility model discloses a battery pack sheet metal assembly structure of a solid sodium battery, which comprises an upper cover, a lower box body, a heat-insulating assembly body, an inner box and side plates, wherein the lower box body is arranged below the upper cover and fixedly connected with the upper cover, the side plates are fixedly arranged on two sides of the lower box body and fixedly connected with the upper cover, so that the lower box body, the upper cover and the side plates are surrounded into a square structure with a hollow inside, the heat-insulating assembly body is fixedly arranged in the square structure, and the inner box is fixedly arranged in the heat-insulating assembly body. Through reasonable design and combination of the components, the sodium battery PACK sheet metal assembly has the advantages of simplicity in manufacturing, low cost, high maintainability, convenience in carrying, good sealing and heat preservation effects, high safety, stable structure and the like, provides reliable support for application of the high-temperature sodium battery in more scenes, is beneficial to popularization and application of products, and promotes development and popularization of solid-state sodium battery technology.

Inventors

ZHANG FULI
YU ZHENJIANG
LIANG CHUNXIAO
WANG YING
DAI FEIXIONG
LI WEIWEI

Assignees

超威电源集团有限公司

Dates

Publication Date: 20260512
Application Date: 20250326

Claims (10)

1. The battery pack sheet metal assembly structure of the solid sodium battery is characterized by comprising an upper cover, a lower box body, a heat preservation assembly, an inner box and side plates; the lower box body is arranged below the upper cover and is fixedly connected with the upper cover, two sides of the lower box body are fixedly provided with side plates which are fixedly connected with the upper cover, so that the lower box body, the upper cover and the side plates are surrounded into a square structure with hollow inside, the heat preservation assembly is fixedly arranged in the square structure, and the inner box is fixedly arranged in the heat preservation assembly.
2. The battery sheet metal assembly structure of the solid-state sodium battery according to claim 1, wherein a sealing strip is arranged between the upper cover and the lower box body.
3. The battery sheet metal assembly structure of the solid-state sodium battery according to claim 1, wherein the side plate is provided with a handle.
4. The battery pack sheet metal assembly structure of the solid-state sodium battery according to claim 1, wherein the heat-insulating assembly comprises a heat-insulating material, and the heat-insulating material is a nano material.
5. The battery pack sheet metal assembly structure of the solid sodium battery according to claim 4, wherein the thickness of the heat insulation material of the heat insulation assembly is 1 mm-200 mm, and the temperature resistance range is 25 ℃ to 1000 ℃.
6. The battery sheet metal assembly structure of a solid state sodium battery of claim 1, wherein the inner case is a case having electrical conductivity.
7. The battery sheet metal assembly structure of a solid state sodium battery of claim 6, wherein the inner case comprises a coaming and a bottom plate, and the coaming is perpendicular to and fixedly connected with the bottom plate.
8. The battery pack sheet metal assembly structure of a solid state sodium battery according to claim 1, wherein the lower case has a square hole formed in the front.
9. The battery pack sheet metal assembly structure of the solid-state sodium battery according to claim 8, wherein the front part of the lower case is further provided with a plurality of welding screws.
10. The battery pack sheet metal assembly structure of the solid-state sodium battery according to claim 1, wherein the side plate is provided with a first mounting hole at a position close to the top, and the upper cover is provided with a second mounting hole corresponding to the first mounting hole, so that the first mounting hole of the side plate is fixedly connected with the second mounting hole of the upper cover through a rivet.

Description

Battery pack sheet metal assembly structure of solid sodium battery Technical Field The utility model relates to the technical field of battery packs, in particular to a battery pack sheet metal assembly structure of a solid sodium battery. Background Sodium sulfur batteries and sodium salt batteries have many advantages as two main types of high temperature sodium batteries. The sodium-sulfur battery has high energy density which is 5 times that of a lead-acid battery, high charge and discharge efficiency and long cycle life, is manufactured by adopting cheap and nontoxic materials, and is mainly applied to fixed energy storage. The sodium salt battery has the characteristics of stable product property, high safety (intrinsic safety of the battery core), long service life, wide application range, easily available raw materials, no toxicity, simple waste recovery process, no pollution and the like, and is applied to 25 countries worldwide, and relates to energy storage projects such as solar energy, wind power combination, peak management, communication base stations and the like. However, the current development of both batteries faces some problems. The sodium-sulfur battery is mainly limited by safety, and the sodium-sulfur battery has defects in the aspects of cost, maintainability, air leakage of a vacuum heat-insulating layer, high temperature requirement during use and the like. Therefore, there is an urgent need to solve the problems of the high-temperature sodium battery in terms of cost, maintenance, reliability, convenience in handling, etc., to form a product series and popularize the application thereof. Aiming at the problems in the related art, the utility model provides a battery pack sheet metal assembly structure of a solid-state sodium battery. Disclosure of utility model The utility model aims at overcoming the defects of the prior art and provides a battery pack sheet metal assembly structure of a solid sodium battery. In order to achieve the above purpose, the present utility model adopts the following technical scheme: A battery pack sheet metal assembly structure of a solid sodium battery comprises an upper cover, a lower box body, a heat insulation assembly, an inner box and side plates; the lower box body is arranged below the upper cover and is fixedly connected with the upper cover, two sides of the lower box body are fixedly provided with side plates which are fixedly connected with the upper cover, so that the lower box body, the upper cover and the side plates are surrounded into a square structure with hollow inside, the heat preservation assembly is fixedly arranged in the square structure, and the inner box is fixedly arranged in the heat preservation assembly. Further, a sealing strip is arranged between the upper cover and the lower box body. Further, a handle is arranged on the side plate. Further, the heat-insulating assembly comprises a heat-insulating material, and the heat-insulating material is a nano material. Further, the thickness of the heat insulation material of the heat insulation assembly is 1 mm-200 mm, and the temperature resistance range is 25 ℃ to 1000 ℃. Further, the inner box is a box body with conductivity. Further, the inner box comprises a coaming and a bottom plate, and the coaming is perpendicular to the bottom plate and fixedly connected with the bottom plate. Further, square holes are formed in the front of the lower box body. Furthermore, the front part of the lower box body is also provided with a plurality of welding screws. Further, a first mounting hole is formed in the position, close to the top, of the side plate, and a second mounting hole corresponding to the first mounting hole is formed in the upper cover, so that the first mounting hole of the side plate is fixedly connected with the second mounting hole of the upper cover through rivets. Compared with the prior art, the utility model has the following beneficial effects: 1. simple manufacture, simplified manufacturing process and reduced production difficulty. 2. The raw materials and the manufacturing cost are low, and the method is favorable for large-scale production and popularization. 3. The maintainability is high, and the maintenance are convenient to carry out when the problem occurs. 4. The convenient transport, the handle design of both sides makes the transport more convenient laborsaving. 5. The sealing effect is good, and the sealing strip design between upper cover and lower box can effectively dustproof waterproof, adapts to different environmental conditions. 6. The heat preservation effect is outstanding, adopts the nano material heat preservation assembly, can effectively maintain the inside temperature of group battery, improves battery performance and life-span. 7. The safety is high, and the inner box assembly can send alarm signal to BMS through the sensing line when electric core leaks, in time handles potential safety hazard. 8. The structure is stable, each