CN207651569U - A kind of magnesium alloy battery tank shell for micro-electric truck - Google Patents

Abstract

A kind of magnesium alloy battery tank shell for micro-electric truck, belong to new-energy automobile accessory technical field, including lower housing and upper shell, three protrusions are correspondingly provided in two long side walls of upper shell, the upper bottom for being equipped with upper shell according to bulge-structure on the upper end-face edge of two long side walls and two short side walls constitutes three raised chambers；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；It is set in upper shell there are three raised chamber, is adapted to the design feature of electric vehicle；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 micro-electric truck

Technical field

The utility model is related to new-energy automobile accessories field, especially a kind of magnesium alloy electricity for micro-electric truck Pond 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 the magnesium alloy using magnesium alloy materials manufacture micro-electric truck Battery tank shell adapts to the cooperation of new-energy automobile each component and battery case using corresponding space structure and material structure, The characteristics of being also adapted to magnesium alloy materials simultaneously, 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 be it is a kind of be used for micro-electric truck Magnesium alloy battery tank shell includes the shape and structure and material structure of shell, it is characterised in that the shape and structure includes lower casing Body and upper shell, the lower housing include that rectangle is gone to the bottom, and the edge of rectangle bottom vertically bears that there are two long upwards Side wall and two short side walls；The protruding composition lower housing end face in rectangle end face that two long side walls and two short side walls are constituted Along platform, lower housing end face is laid with several attachment holes along platform；Rectangle bottom, long side wall and short side wall in lower housing Outer surface is equipped with crisscross reinforcing rib, and reinforcing rib is equipped with hanger.

The upper shell includes the upper shell end face Yan Tai to match with lower housing end face Yan Tai, and upper shell end face is along platform Inside directly generates vertical upwards two long side walls and two short side walls；Three protrusions are correspondingly provided in two long side walls, The upper bottom for being equipped with upper shell according to bulge-structure on the upper end-face edge of two long side walls and two short side walls constitutes three protrusions Chamber is not set in long section on the upper bottom lateral surface of raised chamber, is equipped with a waling and several cross reinforcings.

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；It is set in upper shell there are three raised chamber, is adapted to the design feature of electric vehicle, setting reinforcing rib can add The intensity of strong babinet, reduced thickness and material utilization amount；Multilayer resist is arranged in magnesium alloy outer surface, according to the item inside and outside matrix Different protective films is arranged in part difference, can save material, and matrix can be made to be effectively protected, and overall effect can be with Improve the performance and service life of battery case.

Description of the drawings

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

Fig. 2 is the structural schematic diagram of lower housing in the utility model.

Fig. 3 is the material structure schematic diagram of the utility model.

In figure：1. lower housing, 2. upper shells, 3. long side walls, 4. short side walls, 5. lower housing end face Yan Tai, 6. attachment holes, 7. Reinforcing rib, 8. hangers, 9. upper shell end face Yan Tai, the upper bottom of 10. upper shells, 11. raised chambers, 12. walings, 13. Cross reinforcing, 20. magnesium alloy materials matrixes, 21. Micro-Arc Oxidized Ceramic Coatings, 22. magnesium aluminum compounds diffusion layers, 23. colloidal sols Film 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 micro-electric truck, include the shape knot of shell Structure and material structure, the shape and structure include lower housing 1 and upper shell 2, and the lower housing 1 includes that a rectangle is gone to the bottom, It is vertically born upwards there are two long side wall 3 and two short side walls 4 at the edge of rectangle bottom；Two long side walls 3 and two short sides Along platform 5, lower housing end face is laid with several along platform 5 for the protruding composition lower housing end face in rectangle end face that wall 4 is constituted Attachment hole 6；The outer surface of rectangle bottom, long side wall 3 and short side wall 4 in lower housing 1 is equipped with crisscross reinforcing rib 7, reinforcing rib 7 is equipped with hanger 8.

The upper shell 2 includes the upper shell end face that matches with lower housing end face Yan Tai along platform 9, upper shell end face Yan Tai 9 inside directly generates vertical upwards two long side walls and two short side walls；Be correspondingly provided in two long side walls three it is convex It rises, the upper bottom 10 for being equipped with upper shell according to bulge-structure on the upper end-face edge of two long side walls and two short side walls constitutes three Raised chamber 11 is not set in long section on 10 lateral surface of upper bottom of the upper shell of raised chamber, is equipped with a waling 12 and several Cross reinforcing 13；Then upper shell 2 is mounted on lower housing 1.

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 micro-electric truck includes the shape and structure and material structure of shell, It is characterized in that the shape and structure includes lower housing and upper shell, the lower housing includes that a rectangle is gone to the bottom, under rectangle It is vertically born upwards there are two long side wall and two short side walls at the edge at bottom；Two long side walls and two short side walls constitute rectangular The protruding composition lower housing end face Yan Tai in shape end face, lower housing end face is laid with several attachment holes along platform；In lower housing Rectangle bottom, long side wall and short side wall outer surface be equipped with crisscross reinforcing rib, reinforcing rib is equipped with hanger；

The upper shell includes the upper shell end face Yan Tai to match with lower housing end face Yan Tai, and upper shell end face is along the inside of platform Directly generate vertical upwards two long side walls and two short side walls；Three protrusions are correspondingly provided in two long side walls, two The upper bottom for being equipped with upper shell on the upper end-face edge of a long side wall and two short side walls according to bulge-structure constitutes three raised chambers, Long section is not set on the upper bottom lateral surface of raised chamber, is equipped with a waling and several cross reinforcings；

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 micro-electric truck, it is characterised in that the material 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, Micro-Arc Oxidized Ceramic Coating appearance is coated with magnesium aluminum compounds diffusion layer, and dissolved glue film is coated in magnesium aluminum compounds diffusion layer outer surface Layer, is covered with electrophoretic deposition layer in colloidal sol film layer appearance, decorative layer is also coated in electrophoretic deposition layer appearance；Simultaneously in magnesium alloy The generation of material matrix inner surface has Micro-Arc Oxidized Ceramic Coating, and magnesium aluminum compounds diffusion is coated in Micro-Arc Oxidized Ceramic Coating appearance Layer, electrophoretic deposition layer is covered in magnesium aluminum compounds diffusion layer appearance.