CN211001213U - Pure electric vehicles protects crossbeam assembly behind - Google Patents
Pure electric vehicles protects crossbeam assembly behind Download PDFInfo
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- CN211001213U CN211001213U CN201921706251.6U CN201921706251U CN211001213U CN 211001213 U CN211001213 U CN 211001213U CN 201921706251 U CN201921706251 U CN 201921706251U CN 211001213 U CN211001213 U CN 211001213U
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Abstract
The utility model discloses a beam assembly is protected behind pure electric vehicles has: a rear protective beam body; the energy absorption box assemblies are arranged on two sides of the rear protective beam body; the energy absorption box assembly comprises an energy absorption box connecting plate, a rear protection beam mounting mother plate and an energy absorption box positioned between the energy absorption box connecting plate and the rear protection beam mounting mother plate, and the connecting plate is connected with the rear protection beam body; the energy absorption box comprises an energy absorption box upper plate and an energy absorption box lower plate, and the energy absorption box upper plate is connected with the energy absorption box lower plate; the cross section of the energy absorption box is "
The three surfaces of the shape and the energy absorption box are provided with energy absorption deformation induction grooves and the energy absorption boxThe energy-absorbing deformation inducing grooves on the top surface and the side surfaces are arranged in a staggered manner, so that the maintenance economy under low-speed rear collision of the automobile and the safety during middle-high-speed rear collision of the automobile are improved.
Description
Technical Field
The utility model belongs to the technical field of pure electric vehicles, especially, relate to a beam assembly is protected behind pure electric vehicles.
Background
The rear bumper beam assembly generally comprises a rear bumper beam body, a rear energy absorption box and a mounting plate. Several conventional functions of the rear fender beam assembly include: 1. as a mounting base, providing mounting points for other parts; 2. the integrated unhooking threaded pipe assembly provides trailer service for other vehicles when being anchored; 3. when the automobile is in low-speed rear collision, the energy absorption box is fully deformed to absorb collision energy, so that the deformation of the automobile body is reduced, and the maintenance cost is reduced; 4. when the vehicle encounters a rear-end collision with medium and high speed, the collision energy is absorbed and transmitted, the deformation degree of the passenger compartment structure is reduced, and the safety is improved.
With the development of the automobile industry and the shortage of energy, the pure electric automobile is gradually paid attention to due to the advantages of energy conservation, environmental protection and the like. The pure electric automobile also puts higher requirements on collision safety and vehicle body light weight due to the electric safety risk brought by a high-voltage electric drive system and the realization of high endurance mileage. The rear protective beam is an important safety key part when a vehicle is subjected to rear collision, and can absorb collision energy on one hand and effectively transmit collision load on the other hand.
In the process of implementing the present invention, the inventor finds that the prior art has at least the following problems: the novel rear anti-collision beam disclosed in the Chinese patent document CN 207594877U is integrally injection-molded by adopting glass fiber reinforced thermoplastic; document CN 208715133U discloses a rear anti-collision beam for an electric vehicle, which comprises a rear anti-collision beam main body and two reinforcing rib plates, wherein the rear anti-collision beam main body is composed of a front side plate, an upper side plate, a lower side plate and a rear side plate, the cross section of the rear anti-collision beam main body is a rectangular frame structure, and the design of carbon fiber reinforced epoxy resin composite plate materials is utilized; the rear impact beam structure disclosed in the document CN 209142230U and the automobile have a simple structural design, and can reduce the cost. At the present stage, due to the reasons of material cost, processing technology, towing hook strength, maintenance economy, collision safety and the like, the rear protective cross beam structural member is still designed on the basis of high-strength metal materials, and the optimal performance such as weight, collision safety and the like is comprehensively considered.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a guarantee crossbeam assembly behind pure electric vehicles of security when providing an improve the maintenance economy under the low-speed rear collision of car and well high-speed rear collision.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: a pure electric vehicles rear bumper beam assembly has:
a rear protective beam body;
the energy absorption box assemblies are arranged on two sides of the rear protective beam body; the energy absorption box assembly comprises an energy absorption box connecting plate, a rear protection beam mounting mother plate and an energy absorption box positioned between the energy absorption box connecting plate and the rear protection beam mounting mother plate, and the connecting plate is connected with the rear protection beam body;
the energy absorption box comprises an energy absorption box upper plate and an energy absorption box lower plate, and the energy absorption box upper plate is connected with the energy absorption box lower plate; the cross section of the energy absorption box is
And energy-absorbing deformation inducing grooves are formed in three surfaces of the energy-absorbing box, and the energy-absorbing deformation inducing grooves in the top surface and the side surfaces of the energy-absorbing box are arranged in a staggered mode.
The energy absorption box assembly is provided with a rear towing hook threaded pipe, two ends of the rear towing hook threaded pipe are respectively connected with the rear protective beam body and the energy absorption box connecting plate through carbon dioxide arc welding, and the length of one end of the towing hook threaded pipe protruding out of the energy absorption box connecting plate is smaller than 5 mm.
The rear protection beam body is of a single-layer plate structure formed by cold stamping, the cross section of the rear protection beam body is open, a reinforcing rib penetrating through the rear protection beam body is arranged in the middle of the rear protection beam body, the depth of the reinforcing rib is 5mm, and the height of the reinforcing rib is 1/4-1/3 of the height of the cross section of the rear protection beam; the height of the cross section of the rear protection crossbeam is 75-85 mm, and the width of the cross section is 25-35 mm.
The rear protective beam body is of an arch structure in the horizontal direction of the vehicle; rear protection beam assembly mounting tool through holes are formed in the two sides of the rear protection beam body, which correspond to the left assembly of the energy absorption box; rear protection beam assembly mounting tool through holes are formed in the two sides of the rear protection beam body, which correspond to the right assembly of the energy absorption box; the rear protective beam body is respectively provided with a main positioning hole and an auxiliary positioning hole for welding positioning; and the rear protective beam body is provided with a welding hole for mounting a rear towing hook threaded pipe at the right component of the energy absorption box.
Two energy-absorbing box subassemblies symmetry set up in the both sides of guaranteeing the crossbeam body after.
The connecting plate and the rear protective beam body are welded through carbon dioxide arc welding; and the rear protective beam assembly is fixed on the rear part of the pure electric vehicle through a bolt.
One of the above technical scheme has following advantage or beneficial effect, can provide the trailer function, and the tow hook structure does not influence the energy-absorbing box and normally exerts the structural function. When a middle-high speed rear collision accident occurs, the rear protective beam and the energy absorption box deform to absorb energy and transmit collision load to the rear vehicle body framework, so that effective protection is provided for passengers in the vehicle, and in addition, the maintenance cost of the vehicle collision accident after low speed occurrence can be effectively reduced. The rear protective beam assembly is connected with the rear vehicle body through bolts, and is convenient to install and maintain.
Drawings
Fig. 1 is a schematic structural view of a rear bumper beam assembly of a pure electric vehicle provided in an embodiment of the present invention;
FIG. 2 is an overall elevation view of the embodiment of FIG. 1;
FIG. 3 is an overall rear view of the embodiment shown in FIG. 1;
FIG. 4 is an overall top view of the embodiment shown in FIG. 1;
FIG. 5 is a cross-sectional view taken at A-A of FIG. 2;
FIG. 6 is a cross-sectional view taken at B-B of FIG. 2;
FIG. 7 is a schematic structural view of an energy absorption box assembly;
FIG. 8 is a side view of FIG. 7;
fig. 9 is a cross-sectional view at C-C in the bitmap 8.
The labels in the above figures are: 1. the rear protective beam comprises a rear protective beam body, 101, mounting tool through holes, 102, main positioning holes, 103, auxiliary positioning holes, 104, a towing hook threaded pipe welding hole, 2, an energy absorption box assembly, 21, an energy absorption box connecting plate, 22, a rear protective beam mounting mother plate, 23, an energy absorption box upper plate, 24, an energy absorption box lower plate, 25, an induction groove, 3 and a towing hook threaded pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Referring to fig. 1-9, a pure electric vehicle rear bumper beam assembly includes a rear bumper beam body 1 and two energy-absorbing box assemblies 2 disposed on two sides of the rear bumper beam body 1. The energy absorption box assembly 2 comprises an energy absorption box connecting plate 21, an energy absorption box upper plate 23, an energy absorption box lower plate 24 and a rear protection beam mounting mother plate 22.
The energy-absorbing box assembly 2 is connected with the rear protective beam body 1 through an energy-absorbing box connecting plate 21. The rear fender beam assembly is connected to the rear body of the vehicle through a rear fender beam mounting motherboard 22 by bolts. The energy absorption box upper plate 23 and the energy absorption box lower plate 24 are welded by means of carbon dioxide arc welding or spot welding.
The cross-sectional shapes of the crash box upper plate 23 and the crash box lower plate 24 are
Shaping; energy-absorbing deformation inducing grooves are formed in the three surfaces of the energy-absorbing box upper plate and the energy-absorbing box lower plate; furthermore, the two inducing grooves on the side surface are positioned at the same position in the front-rear direction of the vehicle, and the inducing grooves on the side surface and the top surface are arranged in a staggered mode.
The side induction grooves of the crash box upper plate 23 and the crash box lower plate 24 are arranged at the same position in the vehicle front-rear direction, and further, the induction grooves serve as auxiliary positioning for welding the crash box upper plate and the crash box lower plate.
The rear towing hook threaded pipe 3 is located on the right side of the energy absorption box assembly, two ends of the rear towing hook threaded pipe are fixedly connected with the rear protective beam body 1 and the energy absorption box connecting plate 21 through carbon dioxide arc welding respectively, and further the length of the rear end of the towing hook threaded pipe protruding out of the energy absorption box connecting plate is smaller than 5 mm.
The rear protection beam body 1 is arched, and further rear protection beam mounting tool through holes 101 are formed in two sides of the rear protection beam body corresponding to the left energy absorption box assembly; and rear protective beam mounting tool through holes 101 and towing hook threaded pipe welding holes 104 are formed in two sides of the right energy absorption box component.
Furthermore, the rear protective beam body 1 is provided with a main positioning hole 102 and an auxiliary positioning hole 103 for welding.
The rear protective beam body 1 is a high-strength steel plate cold stamping single-layer plate structure, the cross section of the rear protective beam body is in an open shape, the high-strength steel plate is selected, the structural strength of the rear protective beam body can be improved, the safety performance of the rear protective beam body is improved, the thickness of parts can be reduced, and the light weight degree is improved. Furthermore, a reinforcing rib penetrating through the transverse direction of the vehicle is arranged in the middle of the rear protective cross beam body, and the depth of the reinforcing rib is 5 mm; the strengthening rib height does protect crossbeam section height 1/4 ~ 1/3 after, the rigidity and the bending resistance of guaranteeing the crossbeam after can further be improved in the setting of strengthening rib, can also effectively avoid the sheet material resilience improvement formability among the stamping forming process.
The cross section height range of the rear protection crossbeam 1 is 75-85 mm, and the cross section width is 25-35 mm.
And the rear protective beam assembly is fixed on the rear part of the pure electric vehicle through a bolt.
In order to improve the safety performance of the rear protection beam assembly, the proportion range of the size of the cross section of the energy absorption box and the size of the cross section of the rear vehicle body longitudinal beam is 90-110%, the height difference value of the center of the cross section is not more than 10mm, and stable deformation energy absorption of the rear protection beam assembly during collision is guaranteed.
Can provide the trailer function, the towing pintle structure does not influence the energy-absorbing box and normally exerts the structural function. When a middle-high speed rear collision accident occurs, the rear protective beam and the energy absorption box deform to absorb energy and transmit collision load to the rear vehicle body framework, so that effective protection is provided for passengers in the vehicle, and in addition, the maintenance cost of the vehicle collision accident after low speed occurrence can be effectively reduced. The rear protective beam assembly is connected with the rear vehicle body through bolts, and is convenient to install and maintain.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial improvements can be made without modification to the method and technical solution of the present invention, or the present invention can be directly applied to other occasions without modification, all within the scope of the present invention.
Claims (6)
1. The utility model provides a beam assembly is protected behind pure electric vehicles which characterized in that has:
a rear protective beam body;
the energy absorption box assemblies are arranged on two sides of the rear protective beam body; the energy absorption box assembly comprises an energy absorption box connecting plate, a rear protection beam mounting mother plate and an energy absorption box positioned between the energy absorption box connecting plate and the rear protection beam mounting mother plate, and the connecting plate is connected with the rear protection beam body;
the energy absorption box comprises an energy absorption box upper plate and an energy absorption box lower plate, and the energy absorption box upper plate is connected with the energy absorption box lower plate; the cross section of the energy absorption box is
And energy-absorbing deformation inducing grooves are formed in three surfaces of the energy-absorbing box, and the energy-absorbing deformation inducing grooves in the top surface and the side surfaces of the energy-absorbing box are arranged in a staggered mode.
2. The pure electric vehicle rear bumper beam assembly according to claim 1, wherein a rear towing hook threaded pipe is arranged on the energy absorption box assembly, two ends of the rear towing hook threaded pipe are respectively connected with the rear bumper beam body and the energy absorption box connecting plate through carbon dioxide arc welding, and one end of the towing hook threaded pipe protrudes out of the energy absorption box connecting plate by a length smaller than 5 mm.
3. The pure electric vehicle rear protective beam assembly of claim 2, wherein the rear protective beam body is a single-layer plate structure formed by cold stamping, the cross section of the rear protective beam body is open, a reinforcing rib penetrating through the rear protective beam body is arranged in the middle of the rear protective beam body, the depth of the reinforcing rib is 5mm, and the height of the reinforcing rib is 1/4-1/3 of the height of the cross section of the rear protective beam; the height of the cross section of the rear protection crossbeam is 75-85 mm, and the width of the cross section is 25-35 mm.
4. The rear bumper beam assembly of the pure electric vehicle as claimed in claim 3, wherein the rear bumper beam body is of an arch structure in the horizontal direction of the vehicle; rear protection beam assembly mounting tool through holes are formed in the two sides of the rear protection beam body, which correspond to the left assembly of the energy absorption box; rear protection beam assembly mounting tool through holes are formed in the two sides of the rear protection beam body, which correspond to the right assembly of the energy absorption box; the rear protective beam body is respectively provided with a main positioning hole and an auxiliary positioning hole for welding positioning; and the rear protective beam body is provided with a welding hole for mounting a rear towing hook threaded pipe at the right component of the energy absorption box.
5. The rear bumper beam assembly of the pure electric vehicle as claimed in claim 4, wherein the two energy absorption box assemblies are symmetrically arranged on two sides of the rear bumper beam body.
6. The pure electric vehicle rear bumper beam assembly according to claim 5, wherein the connecting plate is welded with the rear bumper beam body through carbon dioxide arc welding; and the rear protective beam assembly is fixed on the rear part of the pure electric vehicle through a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921706251.6U CN211001213U (en) | 2019-10-12 | 2019-10-12 | Pure electric vehicles protects crossbeam assembly behind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921706251.6U CN211001213U (en) | 2019-10-12 | 2019-10-12 | Pure electric vehicles protects crossbeam assembly behind |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211001213U true CN211001213U (en) | 2020-07-14 |
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ID=71505507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921706251.6U Active CN211001213U (en) | 2019-10-12 | 2019-10-12 | Pure electric vehicles protects crossbeam assembly behind |
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| Country | Link |
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| CN (1) | CN211001213U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113353014A (en) * | 2021-06-15 | 2021-09-07 | 浙江吉利控股集团有限公司 | Automobile anti-collision beam structure and automobile |
-
2019
- 2019-10-12 CN CN201921706251.6U patent/CN211001213U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113353014A (en) * | 2021-06-15 | 2021-09-07 | 浙江吉利控股集团有限公司 | Automobile anti-collision beam structure and automobile |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210510 Address after: Room b1071, 1st floor, building 1 (North), 368 Liuhe Road, Puyan street, Binjiang District, Hangzhou City, Zhejiang Province 310000 Patentee after: Zhejiang Weige magnesium Automobile Technology Co.,Ltd. Address before: Room j2053, 1st floor, No.185, Moyu Road, Anting Town, Jiading District, Shanghai, 201800 Patentee before: SHANGHAI RUIMEI NEW ENERGY TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220224 Address after: 242399 He Li Xi Dong Jin Lu Zheng An Xiang, Ningguo City, Xuancheng City, Anhui Province Patentee after: Anhui Weige magnesium Power Technology Co.,Ltd. Address before: Room b1071, 1st floor, building 1 (North), 368 Liuhe Road, Puyan street, Binjiang District, Hangzhou City, Zhejiang Province 310000 Patentee before: Zhejiang Weige magnesium Automobile Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |