CN207651568U - A kind of magnesium alloy battery tank shell for miniature electric minibus - Google Patents

Abstract

A kind of magnesium alloy battery tank shell for miniature electric minibus, belongs to new-energy automobile accessory technical field, including lower housing, upper shell and shell cover, and the bottom outer surface of the lower housing is equipped with several triangle reinforcing ribs；It is equipped with to generate successively in magnesium alloy materials outer surface of matrix Micro-Arc Oxidized Ceramic Coating, magnesium aluminum compounds diffusion layer, colloidal sol film layer, electrophoretic deposition layer, decorative layer；Advantage is can effectively to reduce the weight of battery case using magnesium alloy materials, increases substantially vibration and noise reducing, electromagnetic shielding, mechanical shock, falls, collides, squeezing, overturning, radiating and the external comprehensive functions characteristic such as burn；Multiple triangle reinforcing ribs are set on the bottom of lower housing, strengthen the intensity of babinet, reduce the thickness and material utilization amount of shell；Multilayer resist is arranged in magnesium alloy outer surface, different protective films is arranged according to the condition difference inside and outside matrix, can save material, and matrix can be made to be effectively protected, overall effect can improve the performance and service life of battery case.

Description

A kind of magnesium alloy battery tank shell for miniature electric minibus

Technical field

The utility model is related to new-energy automobile accessories fields, especially a kind of magnesium alloy for miniature electric minibus Battery tank shell.

Background technology

With the protrusion of energy shortage and problem of environmental pollution, it is most ideal, most that new-energy automobile becomes substitution fuel-engined vehicle Promising green traffic tool.With the rise of new-energy automobile, relevant issues are increasingly valued by people.Vehicle Weight be the key that development new energy vehicle, lightweight increasingly becomes vehicle and develops improved trend.It is light-weighted main One of means are to substitute traditional material using advanced light material.Using magnesium alloy light-weight than used aluminium alloy 30%, and And the characteristics of by the intrinsic vibration damping of magnesium alloy, noise reduction and rapid Homogeneouslly-radiating, automobile overall performance can be made to greatly improve.

Magnesium alloy only has the 64% of the 23% of steel, aluminium as current most light structural metallic materials, proportion.With proportion Small, the advantages that specific strength is high, specific stiffness is high, machining and die-casting process performance are good.It is applied on new-energy automobile component With vibration and noise reducing, electromagnetic shielding, shock resistance, high speed heat dissipation, the comfort of vehicle driving is improved, and makes product that there is energy saving drop The advantages that consumption, low emission, low cost, recoverable.

Currently, the battery case of electric vehicle generally uses steel structure babinet, it is molded using metal plate or punch process, babinet Weight weighting is shown as, processing technology is complicated, and corrosion resistance is not high, and integral battery energy density is not high；Aluminum alloy battery phase To light, but overall cost is high, and impact resistance is weak, there is a problem of in practical applications certain.

Utility model content

In practical applications, different vehicles needs the battery case for being equipped with different size shape, after magnesium alloy materials, Due to the configuration variation of each parts in new-energy automobile, in conjunction with magnesium alloy lightweight, heat dissipation, shock-absorbing, magnetic cup and shock resistance and The requirement of shelter of the characteristics of anti-surrender ability and magnesium alloy materials need to carry out phase to the concrete structure at each position of battery tank shell The adjustment answered, to improve the performance and service life of battery case.

Technical problem to be solved in the utility model is closed using the magnesium of magnesium alloy materials manufacture miniature electric minibus Golden battery tank shell adapts to matching for each component of new-energy automobile and battery case using corresponding space structure and material structure The characteristics of closing, while being also adapted to magnesium alloy materials, to improve the performance and service life of battery case.

In order to solve the above technical problems, technical solution used by the utility model, which is one kind, being used for miniature electric minibus Magnesium alloy battery tank shell, include the shape and structure and material structure of shell, it is characterised in that the shape and structure be pros Shape cavity body structure, the square cavity body structure include lower housing, upper shell and shell cover, and the lower housing includes under square The outer surface at bottom, bottom is equipped with several triangle reinforcing ribs, triangle stability principle can be utilized to reinforce bottom in this way Rigidity；The edge of square bottom has vertically born lower casing body sidewall upwards, the square end faces that lower casing body sidewall is constituted to Outer bear constitutes lower housing end face Yan Tai, and lower housing end face is laid with several attachment holes along platform；The appearance of lower casing body sidewall Face is equipped with matrix pattern reinforcing rib and attaching frame.

The upper shell is made of lower cover and upper shell wall, and the lower edge of lower cover is equipped with lower cover end face Yan Tai, under Shell cover end face is laid with several attachment holes along platform, and lower cover end face is along the size of platform and the position distribution of attachment hole under Shell end face Yan Tai matches, and the lid heart position of lower cover has dug square hole, and the edge of square hole is born upwards to be become The upper shell wall end face Yan Tai of composition is born in the upper end of shell wall on square, upper shell wall outward, if upper shell wall end face is laid with along platform Dry attachment hole；String holes is dug on upper shell wall, the outer surface of upper shell wall is equipped with attaching frame.

The lower edge of the shell cover is equipped with shell cover end face Yan Tai, and shell cover end face is laid with several attachment holes along platform, Shell cover end face matches along the size of platform and the position distribution of attachment hole with upper shell wall end face Yan Tai.

The material structure refers to having differential of the arc oxygen in the generation of magnesium alloy materials outer surface of matrix using magnesium alloy materials as matrix Change ceramic film, Micro-Arc Oxidized Ceramic Coating appearance is covered with electrophoretic deposition layer；It is given birth to simultaneously in magnesium alloy materials base inner surface It is covered with electrophoretic deposition layer at having Micro-Arc Oxidized Ceramic Coating, Micro-Arc Oxidized Ceramic Coating appearance.

Further, the material structure refers to being given birth in magnesium alloy materials outer surface of matrix using magnesium alloy materials as matrix At there is Micro-Arc Oxidized Ceramic Coating, it is coated with magnesium aluminum compounds diffusion layer in Micro-Arc Oxidized Ceramic Coating appearance, in magnesium aluminum compounds Diffusion layer outer surface be coated with colloidal sol film layer, be covered with electrophoretic deposition layer in colloidal sol film layer appearance, electrophoretic deposition layer appearance also It is coated with decorative layer；There is Micro-Arc Oxidized Ceramic Coating in the generation of magnesium alloy materials base inner surface simultaneously, in arc differential oxide ceramic Film layer appearance is coated with magnesium aluminum compounds diffusion layer, and electrophoretic deposition layer is covered in magnesium aluminum compounds diffusion layer appearance.

The utility model has the beneficial effects that magnesium alloy materials make battery case, the weight of battery case can be effectively reduced, Increase substantially vibration and noise reducing, electromagnetic shielding, mechanical shock, fall, collide, squeezing, overturning, radiating and it is external burn etc. it is comprehensive Functional characteristic；Multiple triangle reinforcing ribs are set on the bottom of lower housing, strengthen the intensity of babinet, reduce the thickness of shell Degree and material utilization amount；Multilayer resist is arranged in magnesium alloy outer surface, different guarantors is arranged according to the condition difference inside and outside matrix Cuticula can save material, and matrix can be made to be effectively protected, and overall effect can improve the usability of battery case Energy and service life.

Description of the drawings

Fig. 1 is the overall appearance structural representation of the utility model.

Fig. 2 is the decomposition texture schematic diagram of each component in the utility model.

Fig. 3 is the present invention looks up structural representation of the utility model.

Fig. 4 is the material structure schematic diagram of the utility model.

In figure：1. square cavity body structure, 2. lower housings, 3. upper shells, 4. shell covers, 5. square bottoms, 6. triangles Under reinforcing rib, 7. lower casing body sidewalls, 8. lower housing end face Yan Tai, 9. attachment holes, 10. matrix pattern reinforcing ribs, 11. attaching framves, 12. Shell cover, shell wall on 13., 14. lower cover end face Yan Tai, shell wall end face Yan Tai, 16. string holes, 17. attaching framves, 18. shell covers on 15. End face Yan Tai, 20. magnesium alloy materials matrixes, 21. Micro-Arc Oxidized Ceramic Coatings, 22. magnesium aluminum compounds diffusion layers, 23. dissolved glue films Layer, 24. electrophoretic deposition layers, 25. decorative layers.

Specific implementation mode

With reference to embodiment, the utility model is described in further detail.

Embodiment 1.

As shown, making a kind of magnesium alloy battery tank shell for miniature electric minibus, include the shape of shell The shape and structure is made and is square cavity body structure 1 by structure and material structure, under the square cavity body structure 1 includes Shell 2, upper shell 3 and shell cover 4, the lower housing 2 include square bottom 5, and the outer surface of square bottom 5 is equipped with several A triangle reinforcing rib 6 can utilize triangle stability principle to reinforce the intensity of bottom in this way；The edge of square bottom 5 Lower casing body sidewall 7 has vertically been born upwards, and the square end faces that lower casing body sidewall 7 is constituted are born outward constitutes lower housing end face edge Platform 8, lower housing end face are laid with several attachment holes 9 along platform 8；The outer surface of lower casing body sidewall 7 is equipped with matrix pattern reinforcing rib 10 and attaching frame 11.

The upper shell 3 is made of lower cover 12 and upper shell wall 13, and the lower edge of lower cover 12 is equipped with lower cover end face Along platform 14, lower cover end face is laid with several attachment holes 9, size and attachment hole of the lower cover end face along platform 14 along platform 14 9 position distribution matches with lower housing end face along platform 8, and the lid heart position of lower cover 12 has dug square hole, square hole Edge born upwards as the upper shell wall 13 of square, the upper shell wall end face of composition is born along platform 15 in the upper end of upper shell wall 13 outward, Upper shell wall end face is laid with several attachment holes 9 along platform 15；String holes 16, the outer surface of upper shell wall 13 have been dug on upper shell wall 13 Equipped with attaching frame 11.

The lower edge of the shell cover 4 is equipped with shell cover end face along platform 17, and shell cover end face is laid with several dresses along platform 17 Hole 9 is connect, shell cover end face matches with upper shell wall end face along platform 15 along the size of platform 17 and the position distribution of attachment hole 9；Then Upper shell 3 is mounted on lower housing 2, then shell cover 4 is mounted on upper shell 3.

The material structure refers to using magnesium alloy materials as matrix, and in the outer surface of magnesium alloy materials matrix 20, generation has micro- Arc oxide ceramic film layer 21 is covered with electrophoretic deposition layer 24 in the appearance of Micro-Arc Oxidized Ceramic Coating 21；Simultaneously in magnesium alloy material The inner surface generation of material matrix 20 has Micro-Arc Oxidized Ceramic Coating 21, and electrophoresis is covered in the appearance of Micro-Arc Oxidized Ceramic Coating 21 Sedimentary 24.

Embodiment 2.

In embodiment 1 on the basis of shape and structure, the material structure is made using magnesium alloy materials as matrix, in magnesium The outer surface of alloy material matrix 20, which generates, Micro-Arc Oxidized Ceramic Coating 21, is plated in the outer surface of Micro-Arc Oxidized Ceramic Coating 21 There is magnesium aluminum compounds diffusion layer 22, colloidal sol film layer 23 is coated in the outer surface of magnesium aluminum compounds diffusion layer 22, in colloidal sol film layer 23 appearance is covered with electrophoretic deposition layer 24, and decorative layer 25 is also coated in the appearance of electrophoretic deposition layer 24；Simultaneously in magnesium alloy The inner surface generation of material matrix 20 has Micro-Arc Oxidized Ceramic Coating 21, and magnesium is coated in the outer surface of Micro-Arc Oxidized Ceramic Coating 21 Aluminium compound diffusion layer 22 is covered with electrophoretic deposition layer 24 in the outer surface of magnesium aluminum compounds diffusion layer 22.

Claims (2)

1. a kind of magnesium alloy battery tank shell for miniature electric minibus includes the shape and structure and material structure of shell, It is characterized in that the shape and structure is square cavity body structure, the square cavity body structure include lower housing, upper shell and Shell cover, the lower housing include that square is gone to the bottom, and the outer surface of square bottom is equipped with several triangle reinforcing ribs；It is square The edge of shape bottom has vertically born lower casing body sidewall upwards, and the square end faces that lower casing body sidewall is constituted are born under composition outward Shell end face Yan Tai, lower housing end face are laid with several attachment holes along platform；The outer surface of lower casing body sidewall is equipped with matrix pattern Reinforcing rib and attaching frame；

The upper shell is made of lower cover and upper shell wall, and the lower edge of lower cover is equipped with lower cover end face Yan Tai, lower cover End face is laid with several attachment holes along platform, and lower cover end face is along the size of platform and the position distribution of attachment hole and lower housing End face Yan Tai matches, and the lid heart position of lower cover has dug square hole, and the edge of square hole is born upwards as pros The upper shell wall end face Yan Tai of composition is born in the upper end of shell wall in shape, upper shell wall outward, and upper shell wall end face is laid with several along platform Attachment hole；String holes is dug on upper shell wall, the outer surface of upper shell wall is equipped with attaching frame；

The lower edge of the shell cover is equipped with shell cover end face Yan Tai, and shell cover end face is laid with several attachment holes, shell cover along platform End face matches along the size of platform and the position distribution of attachment hole with upper shell wall end face Yan Tai；

The material structure refers to having differential arc oxidation pottery in the generation of magnesium alloy materials outer surface of matrix using magnesium alloy materials as matrix Porcelain film layer, Micro-Arc Oxidized Ceramic Coating appearance are covered with electrophoretic deposition layer；Have simultaneously in the generation of magnesium alloy materials base inner surface Micro-Arc Oxidized Ceramic Coating, Micro-Arc Oxidized Ceramic Coating appearance are covered with electrophoretic deposition layer.

2. the magnesium alloy battery tank shell according to claim 1 for miniature electric minibus, it is characterised in that described Material structure refers to having Micro-Arc Oxidized Ceramic Coating in the generation of magnesium alloy materials outer surface of matrix using magnesium alloy materials as matrix, It is coated with magnesium aluminum compounds diffusion layer in Micro-Arc Oxidized Ceramic Coating appearance, colloidal sol is coated in magnesium aluminum compounds diffusion layer outer surface Film layer, electrophoretic deposition layer is covered in colloidal sol film layer appearance, and decorative layer is also coated in electrophoretic deposition layer appearance；It is closed simultaneously in magnesium Golden material matrix inner surface generation has Micro-Arc Oxidized Ceramic Coating, and being coated with magnesium aluminum compounds in Micro-Arc Oxidized Ceramic Coating appearance expands Layer is dissipated, electrophoretic deposition layer is covered in magnesium aluminum compounds diffusion layer appearance.