[0037] Refer to Figure 1-Figure 18 , The present invention is a square steel shell battery and a module assembled into a battery system, including a battery cell pole group 1, a primary internal connection deflector 2, a secondary internal connection deflector 3, a lead-out terminal 4, and a battery shell 5. The battery cover 6, the side bracket 7 and the grille 8. The battery cell pole group 1 is arranged inside the battery shell 5. Both sides of the battery cell pole group 1 are provided with a primary internal connection guide vane 2, and the primary internal connection The baffle 2 is provided with a secondary inner connecting baffle 3, the middle of the second inner connecting baffle 3 is provided with a central hole, and the center hole is welded with a leading end 4; the battery shell 5 is covered with batteries on both sides Cover 6; a barrier 8 is provided between the side brackets 7; the cell pole group 1 and the first-level inner connecting baffle 2 are connected by laser welding, and the number of the first-level inner connecting baffle 2 is 2 -6 pieces, the number is an even number, the height of the first-stage inner connecting guide vane 2 is 25-35mm, the first-stage inner connecting guide vane 2 has a width of 20-60mm, and the first-stage inner connecting guide vane 2 has a thickness of 1.0- 3.0mm, the distance between the adjacent first-stage inner connecting guide vanes 2 is 20-30mm; the number of the second-stage inner connecting guide vanes 3 is 1-3, and the second-stage inner connecting guide vanes 3 and The first-level inner connecting guide vanes 2 are connected by laser welding. The distance between the welding point and one end of the first-level inner connecting guide vane 2 is 40-60mm, and the height of the second-level inner connecting guide vane 3 is 50-70mm. The width of the second-stage inner connecting guide vane 3 is 20-60 mm, the thickness of the second-stage inner connecting guide vane 3 is 1.5-3.0 mm, the first-stage inner connecting guide vane 2 and the second-stage inner connecting guide vane 3 The shape of the battery shell 5 is 0.5-0.8mm, the outer side of the battery shell 5 is provided with a reinforcing rib 51, the shape of the reinforcing rib 51 is U-shaped, and the length of the reinforcing rib 51 is 15-25mm The width of the rib 51 is 30-60mm, the height of the rib 51 is 3-5mm, and the thickness of the rib 51 is 0.6-0.8mm. A safety blasting port 52 and a safety valve 53 are also provided on one side of the battery shell 5. The blasting port 52 is in a + shape, the thickness of the safety blasting port 52 is 0.2-0.25mm, and the pressure is not more than 2.5MPa. The safety valve 53 is composed of a safety valve positioning piece 531 and a safety valve anti-blocking cap 532, and a safety valve anti-blocking cap 532 Set on the lower side of the safety valve positioning piece 531, the length of the safety valve positioning piece 531 is 25-30mm, the width of the safety valve positioning piece 531 is 15-25mm, the height of the safety valve positioning piece 531 is 5-7mm, and the safety valve positioning piece 531 The material thickness is 2.5-3.5mm, the length of the safety valve anti-blocking cap 532 is 25-30mm, the width of the safety valve anti-blocking cap 532 is 15-25mm, the height of the safety valve anti-blocking cap 532 is 5-7mm, and the safety valve is anti-blocking The material thickness of the cap 532 is 0.6-1.0mm, and the shape of the safety valve anti-blocking cap 532 is inverted; the outer side of the battery cover 6 is provided with a reinforced folded plate 61, and a lead-out hole 63 is provided between the reinforced folded plates 61, leading out The number of end holes 63 is two, and the battery cover 6 is also provided with a direction mark Recognition 62, the material thickness of the battery cover 6 is 0.5-0.8mm, the height of the turned-out edge set around the battery cover 6 is 3-4mm, the reinforced folding plate 61 is in the shape of a letter, the length of the reinforced folding plate 61 is 25-30mm, The width of the folded plate 61 is 30-60mm, the height of the reinforced folded plate 61 is 5-10mm, the material thickness of the reinforced folded plate 61 is 0.6-0.8mm, the distance of the reinforced folded plate 61 is 20-30mm, and the distance of the reinforced folded plate 61 The distance between the edges of the battery cover 6 is 20-30mm, the distance between the two lead-out holes 63 is 55-65mm, the direction indicator 62 is a circular groove, the diameter of the circular groove is 5-7mm, and the circular groove The depth is 0.1-0.2mm, and the distance between the direction mark 62 and one end of the battery cover 6 is 10-15mm; the barrier 8 is composed of a wide barrier 81 and a narrow barrier 82, and the narrow barrier 82 is located on both sides of the wide barrier 81 The width of the wide grid 81 is 60-80mm, the thickness of the wide grid 81 is 6-10mm, the height of the wide grid 81 is 120-260mm, the width of the narrow grid 82 is 30-40mm, and the thickness of the narrow grid 82 6-10mm, the height of the narrow grid 82 is 120-260mm, the material of the side frame 7 and the grid 8 is one of PP, PE or PA, and the material of the side frame 7 and the grid 8 also adds 5- 15% glass fiber modified material.
[0038] Working process of the present invention:
[0039] In the working process of the square steel shell battery and the module assembled into the battery system of the present invention, the battery cell pole group 1 is installed inside the battery shell 5, and the first-level inner connecting baffle 2 is connected to the electric On the core pole assembly 1, weld the second-stage inner connecting guide piece 3 to the first-stage inner connecting guide piece 2, and cover the battery cover 6 on both sides of the battery shell 5, the battery shell 5 and the side bracket 7 and the grille 8. Once the forming parts are assembled alternately to the entire battery, it can be used for charging and discharging.
[0040] The present invention uses the design of the primary internal connection guide vane 2 and the secondary internal connection guide vane 3 to make the battery flow more uniform and dispersed during battery activation and battery charging and discharging, so that the battery response is more Homogenization and heat dispersion can prevent or improve the uneven reaction and local excessive heat caused by uneven current distribution; the positive and negative terminals 4 are changed from the top of the battery to a new structural design on the side, which basically eliminates The positive and negative terminals 4 are on the same plane and close to each other, which is likely to cause external short circuit. The part of the terminal 4 located inside the battery is immersed in a strong alkaline aqueous solution, which is more conducive to preventing local heating of the terminal 4 , Causing the seal to fail, and it is more conducive to pulse high-current charging and discharging; the battery cover 6 is provided with outturning edges, which reduces the thickness of the battery cover 6 itself while increasing the strength of the battery cover 6 and resists deformation and distortion. Ability; the battery cover 6 is provided with a reinforced folding plate outside, which can further increase the strength of the battery cover 6 and its ability to resist deformation and twisting. The direction mark 62 facilitates the correct installation of the battery cover 6; a reinforced folding plate 63 is provided on the battery case 6 , It can increase its own strength and resistance to deformation and distortion under the original thickness. When the safety blasting port 52 is not smoothly exhausted or blocked by the safety valve 53, once the internal pressure of the battery is greater than 2.5MPa, It can rupture the exhaust and eliminate safety hazards; the shape of the safety valve anti-blocking cap 532 is inverted, which can effectively prevent the solid matter entrained in the airflow from blocking the air path and cause safety hazards. A barrier 8 is provided, It is beneficial to improve the heat dissipation capacity and heat uniformity of the system. 5-15% glass fiber modified material is added to the materials of the side bracket 7 and the grille 8, which further improves the strength, insulation, heat insulation and fire resistance.
[0041] The above-mentioned embodiment is an illustration of the present invention, but not a limitation of the present invention. Any solution that simply changes the present invention belongs to the protection scope of the present invention.
