CN111409706B - Aluminum alloy profile for new energy automobile framework - Google Patents
Aluminum alloy profile for new energy automobile framework Download PDFInfo
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- CN111409706B CN111409706B CN202010245184.3A CN202010245184A CN111409706B CN 111409706 B CN111409706 B CN 111409706B CN 202010245184 A CN202010245184 A CN 202010245184A CN 111409706 B CN111409706 B CN 111409706B
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- energy automobile
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
- B62D29/008—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of light alloys, e.g. extruded
Abstract
The invention relates to the field of aluminum products, in particular to an aluminum alloy section for a new energy automobile framework, which comprises an outer frame, a middle frame and an inner frame, wherein the outer frame is of a square structure, the outer frame is provided with a top edge, a bottom edge and two side edges, the middle frame comprises a group of closed opposite angles and a group of open opposite angles, the middle parts of the two side edges of the outer frame extend inwards to form a connecting edge to be connected with the closed opposite angles of the middle frame, the middle parts of the sides of the middle frame are respectively provided with an inwards concave embedded groove, the inner frame is integrally embedded in the embedded grooves on the sides of the middle frame, the inner frame comprises a group of straight opposite edges and a group of fold line opposite edges, the middle parts of the straight opposite edges extend towards the center to form straight section edges, the end parts of the straight section edges. The invention is applied to the production of the framework for the automobile.
Description
Technical Field
The invention relates to the field of aluminum products, in particular to an aluminum alloy section for a new energy automobile framework.
Background
The weight of the new energy automobile battery pack accounts for 30-40% of the whole automobile. Therefore, the electric vehicle must take more advanced methods and measures than the conventional lightweight technology while being electrified. Application requirements of aluminum alloy, magnesium alloy, titanium alloy, plastic and composite materials, fine ceramics, metal-based composite materials and nonmetal-based composite materials are accelerated, and at present, part of automobile and electric vehicles gradually adopt aluminum alloy profiles to be welded to form a vehicle body framework.
The aluminum alloy profile for the new energy automobile framework comprises a first energy absorption area made of a first material and a second energy absorption area made of a second material different from the first material, wherein the first energy absorption area and the second energy absorption area are connected and arranged oppositely, the strength of the first energy absorption area is greater than that of the second energy absorption area, and the first material comprises the following chemical components in percentage by weight: 3.0-6.0% of Mg, 0-0.25% of Zn, 0-0.10% of Cr0, 0.12-0.30% of Si, 0-0.35% of Fe, 0.50-0.55% of Mn, and the balance of Al and inevitable impurity elements; the second material comprises the following chemical components in percentage by weight: 0.5-0.8% of Mg, 0.05-0.10% of B, 0.1-0.25% of Sr0.05-0.10% of Si, and the balance of Al and inevitable impurity elements.
The aluminum alloy material for the automobile framework is prepared from two materials, and the components of the material are disclosed. However, the aluminum alloy section material adopted by the method has a simple structure and cannot meet the actual requirements on safety and functions.
Disclosure of Invention
Therefore, the invention provides the aluminum alloy section for the new energy automobile framework, and the problem of low safety strength is solved.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the utility model provides an aluminum alloy section for new energy automobile skeleton, includes frame, center and the inside casing of square structure, the frame has topside, base and two sides, the center includes a set of closed diagonal angle and a set of open diagonal angle, the frame inwards extend by the middle part of two sides connect the limit with the closed diagonal angle of center is connected, the embedded groove of indent is all seted up at each limit middle part of center, the inside casing is whole to be embedded in the embedded groove on each edge of center, the inside casing includes a set of sharp opposite side and a set of broken line opposite side, straight section limit is extended to the center at the middle part of sharp opposite side, a bearing arc is installed to the tip on straight section limit, has set up a supporting rod on two bearing arcs.
Preferably, the open diagonal end of the middle frame is provided with a cylindrical shaft.
Preferably, the open opposite corners of the middle frame are provided with upward bent parts, and the cylindrical shaft is located at the end parts of the bent parts.
Preferably, four opposite corners of the outer frame are provided with reinforcing edges.
Preferably, the inner surfaces of the two sides of the outer frame are saw-toothed.
Preferably, rectangular grooves are formed in the upper top edge and the bottom edge of the outer frame, and reinforcing plates or heat-insulating materials are installed in the rectangular grooves.
Preferably, the outer frame, the connecting edge and the middle frame are integrally formed.
Preferably, the outer surface of the support rod is sleeved with a buffer cushion layer.
By adopting the technical scheme, the invention has the beneficial effects that:
the aluminum alloy section bar structurally has the rigid support of the outer frame and the support rods and the energy-absorbing buffer structure of the middle frame and the inner frame, has higher bending resistance and provides good safety strength.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram of an embodiment of the present invention.
Detailed Description
The following detailed description will be provided for the embodiments of the present invention with reference to specific embodiments, so that how to apply the technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented.
Examples
Referring to fig. 1, the aluminum alloy section for the new energy automobile framework comprises an outer frame 1, a middle frame 2 and an inner frame 3, wherein the outer frame 1 is of a square structure, the outer frame 1 is provided with a top edge 1a, a bottom edge 1b and two side edges 1c, the middle frame 2 comprises a group of closed opposite angles 2a and a group of open opposite angles 2b, a connecting edge 11 extends inwards from the middle part of the two side edges 1c of the outer frame 1 to be connected with the closed opposite angles 2a of the middle frame 2, and specifically, the outer frame 1, the connecting edge 11 and the middle frame 2 are integrally formed in production;
the middle part of each side of the middle frame 2 is provided with an inwards concave embedded groove 21, the inner frame 3 is integrally embedded in the embedded grooves 21 on each side of the middle frame 2, the inner frame 3 comprises a group of straight opposite sides 3a and a group of folding line opposite sides 3b, the middle parts of the straight opposite sides 3a extend out of a straight section side 3c towards the center, the end part of the straight section side 3c is provided with a bearing arc 31, two bearing arcs 31 are embedded with a supporting rod 4, meanwhile, the outer surface of the supporting rod 4 is sleeved with a buffer cushion layer (not shown in the figure), the buffer cushion layer is arranged, the noise generated by sliding or extrusion between the supporting rod 4 and the bearing arc 31 can be prevented, and the mounting structures of the supporting rod and the bearing arc 31 are stable;
specifically, the outer frame 1 provides a rigid foundation of an outer layer, in a stress simulation experiment, structural rigidity is damaged due to deformation caused by stress, the inner wall of the outer frame 1 is in contact with the open opposite angle 2b of the middle frame 2, and primary energy absorption is formed at the open opposite angle 2b of the middle frame 2; continuing to extrude until the open type opposite angle 2b is completely bent, and forming secondary energy absorption at the broken line opposite side 3b of the inner frame 3; and finally, the solid support rod 4 at the central position completes the final energy absorption and buffering, and the multi-energy absorption and buffering structure has rigidity and flexibility, can provide good structural strength, ensures the structural safety when being applied to the vehicle framework, and simultaneously has a multi-frame structure, thereby reducing the whole weight.
In this embodiment, a cylindrical shaft 22 is disposed at the end of the open diagonal 2b of the middle frame 2; the cylindrical shaft 22 is arranged to provide a certain bending resistance to the end of the open diagonal 2b of the middle frame 2;
in this embodiment, four opposite corners of the outer frame 1 are provided with reinforcing edges 12; meanwhile, the inner surfaces of two side edges 1c of the outer frame 1 are saw-toothed 13. The reinforcing edge 12 is arranged, so that the structural rigidity of the outer frame 1 can be improved structurally, and the deformation resistance of the outer frame 1 is improved; the sawtooth-shaped 13 structure of the inner surface is matched, so that the two side edges 1c of the outer frame 1 have good bending resistance when being stressed;
in this embodiment, the open opposite corners 2b of the middle frame 2 are both provided with upward bent portions 23, and the cylindrical shaft 22 is located at the end of the bent portions 23; in cooperation with the cylindrical shaft 22, the bending portion 23 is arranged upwards, and is in contact with the outer frame 1 in advance after the outer frame 1 deforms, so that external force needs to overcome the bending angle of the bending portion 23, the middle frame 2 is in contact with the outer frame 1 in advance, the buffering and energy-absorbing time of the middle frame 2 is prolonged, and the energy-absorbing buffering effect of the middle frame is further improved.
In this embodiment, the top edge 1a and the bottom edge 1b of the outer frame 1 are provided with rectangular grooves 14, and the reinforcing plates 5 are installed in the rectangular grooves. Specifically, the reinforcing plate 5 may be a steel plate with higher rigidity, and may be replaced with a heat insulating material according to requirements, such as a mixture of heat insulating cotton and foam plastic; firstly, the rectangular groove 14 not only provides a space for filling materials such as reinforcing plates, but also provides a certain rigid foundation for the top edge 1a and the bottom edge 1b of the outer frame 1 due to the multi-edge structure, so that the stress capacity of the outer frame is further improved;
in this embodiment, the outer frame 1 and the middle frame 2 can be made of aluminum profiles with light weight, and the inner frame 3 can be made of materials with high strength.
The aluminum alloy section bar structurally has the rigid support of the outer frame and the support rods and the energy-absorbing buffer structure of the middle frame and the inner frame, has higher bending resistance and provides good safety strength.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. The utility model provides a new energy automobile is aluminum alloy ex-trusions for skeleton which characterized in that: the inner frame comprises a square-structured outer frame, a middle frame and an inner frame, wherein the outer frame is provided with a top edge, a bottom edge and two side edges, the middle frame comprises a group of closed opposite angles and a group of open opposite angles, the middle part of each side edge of the middle frame inwards extends to form a connecting edge and is connected with the closed opposite angle of the middle frame, the middle part of each side edge of the middle frame is provided with an embedded groove with an inner concave, the inner frame is integrally embedded in the embedded groove on each side edge of the middle frame, the inner frame comprises a group of straight line opposite edges and a group of folding line opposite edges, the middle parts of the straight line opposite edges extend out of straight section edges to the center, a bearing arc is installed at the end part of each straight section.
2. The aluminum alloy profile for the new energy automobile framework, according to claim 1, is characterized in that: and the end part of the open diagonal on the middle frame is provided with a cylindrical shaft.
3. The aluminum alloy profile for the new energy automobile framework as recited in claim 2, wherein: the open opposite angles on the middle frame are provided with upward bending parts, and the cylindrical shaft is positioned at the end parts of the bending parts.
4. The aluminum alloy profile for the new energy automobile framework, according to claim 3, is characterized in that: and reinforcing edges are arranged at four opposite corners of the outer frame.
5. The aluminum alloy profile for the new energy automobile framework as defined in any one of claims 1 to 4, wherein: the inner surfaces of two side edges of the outer frame are in a sawtooth shape.
6. The aluminum alloy profile for the new energy automobile framework as defined in any one of claims 1 to 4, wherein: rectangular grooves are formed in the upper top edge and the bottom edge of the outer frame, and reinforcing plates or heat-insulating materials are installed in the rectangular grooves.
7. The aluminum alloy profile for the new energy automobile framework as defined in any one of claims 1 to 4, wherein: the outer frame, the connecting edge and the middle frame are integrally formed.
8. The aluminum alloy profile for the new energy automobile framework as defined in any one of claims 1 to 4, wherein: the outer surface of the supporting rod is sleeved with a buffer cushion layer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010245184.3A CN111409706B (en) | 2020-03-31 | 2020-03-31 | Aluminum alloy profile for new energy automobile framework |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010245184.3A CN111409706B (en) | 2020-03-31 | 2020-03-31 | Aluminum alloy profile for new energy automobile framework |
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| CN111409706A CN111409706A (en) | 2020-07-14 |
| CN111409706B true CN111409706B (en) | 2021-07-13 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0958527A (en) * | 1995-08-15 | 1997-03-04 | Isuzu Motors Ltd | Vessel structure of truck |
| CN205498661U (en) * | 2016-03-22 | 2016-08-24 | 常熟海伦铝业有限公司 | Track traffic aluminium alloy |
| CN208056926U (en) * | 2018-03-27 | 2018-11-06 | 福建省闽发铝业股份有限公司 | A kind of aluminium section material with lines |
| CN108945115A (en) * | 2018-07-06 | 2018-12-07 | 吉林大学 | A kind of aluminium alloy extrusions suitable for body frame carrying energy-absorbing |
| CN209192051U (en) * | 2018-09-13 | 2019-08-02 | 郑州宇通客车股份有限公司 | A kind of vehicle and the aluminium alloy extrusions for being used to form body frame |
| CN209509920U (en) * | 2018-08-06 | 2019-10-18 | 广东焊伟铝制品有限公司 | A kind of high-performance aluminum profile |
-
2020
- 2020-03-31 CN CN202010245184.3A patent/CN111409706B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0958527A (en) * | 1995-08-15 | 1997-03-04 | Isuzu Motors Ltd | Vessel structure of truck |
| CN205498661U (en) * | 2016-03-22 | 2016-08-24 | 常熟海伦铝业有限公司 | Track traffic aluminium alloy |
| CN208056926U (en) * | 2018-03-27 | 2018-11-06 | 福建省闽发铝业股份有限公司 | A kind of aluminium section material with lines |
| CN108945115A (en) * | 2018-07-06 | 2018-12-07 | 吉林大学 | A kind of aluminium alloy extrusions suitable for body frame carrying energy-absorbing |
| CN209509920U (en) * | 2018-08-06 | 2019-10-18 | 广东焊伟铝制品有限公司 | A kind of high-performance aluminum profile |
| CN209192051U (en) * | 2018-09-13 | 2019-08-02 | 郑州宇通客车股份有限公司 | A kind of vehicle and the aluminium alloy extrusions for being used to form body frame |
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| CN111409706A (en) | 2020-07-14 |
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