CN214451307U - Extrusion section bar and casting combined type electric vehicle front auxiliary frame - Google Patents
Extrusion section bar and casting combined type electric vehicle front auxiliary frame Download PDFInfo
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- CN214451307U CN214451307U CN202120169981.8U CN202120169981U CN214451307U CN 214451307 U CN214451307 U CN 214451307U CN 202120169981 U CN202120169981 U CN 202120169981U CN 214451307 U CN214451307 U CN 214451307U
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Abstract
The utility model belongs to the technical field of electric motor car sub vehicle frame, a combined electric motor car front sub vehicle frame of extrusion section bar and casting is provided, including front beam, longeron, support, rear frame member, well crossbeam and butterfly beam, there is the butterfly beam between rear frame member and the longeron, and well crossbeam connects the butterfly beam at electric motor car front sub vehicle frame middle part, and the butterfly beam is connected wholly with longeron, well crossbeam and rear frame member. The utility model discloses an advantage butterfly beam is with point before the automobile body installation, the automobile body installation mid point, before stabilizer bar, steering engine tie point, control arm with back point ann structurally, reduce part quantity, improve the assembly precision, the high advantage of performance extrusion section bar yield utilizes the mobility of casting process, the shaping is complicated, reduces welding seam quantity, than the whole casting sub vehicle frame degree of difficulty low, the qualification rate is high, the energy-absorbing is effectual.
Description
Technical Field
The utility model belongs to the technical field of the electric motor car sub vehicle frame, a combined electric motor car front sub vehicle frame of extrusion section bar and casting is related to.
Background
With the stricter environmental protection regulations, the pursuit of the electric vehicle for a large voyage distance, the higher the requirement of the light weight of the vehicle; the aluminum alloy process is required to be combined, and the whole vehicle arrangement of the electric vehicle is required to carry out a completely new design on the auxiliary frame structure so as to meet the performance requirement of the auxiliary frame. The existing integrally cast auxiliary frame has poor collision energy absorption effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem, be to prior art's current situation, and provide an extrusion section bar and the combined electric motor car front sub vehicle frame of casting, can reduce the quantity and the welding seam quantity of part, improve the assembly precision, solve the problem that full casting sub vehicle frame energy-absorbing is not enough and the yield is low.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides an auxiliary frame before combined electric motor car of extruded section and casting which characterized in that includes:
the front cross beam is positioned at the front part of the front auxiliary frame of the electric vehicle;
the longitudinal beams are positioned on the left side and the right side of the front cross beam;
the bracket is positioned between the longitudinal beam and the front cross beam, is connected with a front mounting point of the vehicle body and is also connected with the front cross beam and the longitudinal beam;
the rear cross beam is positioned at the rear part of the front auxiliary frame of the electric vehicle, and a butterfly beam is connected between the rear cross beam and the longitudinal beam;
the middle cross beam is positioned in the middle of the front auxiliary frame of the electric vehicle and connected with the butterfly beam, and the butterfly beam is connected with the longitudinal beam, the middle cross beam and the rear cross beam to form a whole.
In the extruded section and cast combined type electric vehicle front auxiliary frame, a rear suspension seat is further arranged between the middle cross beam and the rear cross beam, wherein the rear suspension seat is formed by extruding a hollow extruded section and is used for mounting a power assembly suspension.
In the extruded section and cast combined type electric vehicle front auxiliary frame, the support is in an H shape, and a power assembly suspension mounting point is arranged on the support.
In the above extruded section and cast combined type electric vehicle front auxiliary frame, the longitudinal beam comprises a left longitudinal beam and a right longitudinal beam, and the left longitudinal beam and the right longitudinal beam are respectively positioned on the left side and the right side of the front cross beam.
In the above extruded section and cast combined type electric vehicle front subframe, the bracket comprises a left front bracket and a right front bracket, wherein the left front bracket is used for connecting the front cross beam and the left longitudinal beam, and the right front bracket is used for connecting the front cross beam and the right longitudinal beam.
In the extruded section and cast combined type electric vehicle front auxiliary frame, the butterfly beam is provided with a vehicle body installation middle point, a stabilizer bar, a steering engine connecting point, a control arm front point and a rear point, the butterfly beam comprises a left butterfly beam and a right butterfly beam, the left butterfly beam is connected with a left longitudinal beam, a middle transverse beam and a rear transverse beam, and the right butterfly beam is connected with a right longitudinal beam, a middle transverse beam and a rear transverse beam.
In the above extruded section and cast combined type electric vehicle front auxiliary frame, the front cross beam, the longitudinal beam, the rear cross beam and the middle cross beam are formed by extrusion, and the bracket and the butterfly-shaped beam are formed by die casting.
Compared with the prior art, the utility model has the advantages of utilize the butterfly-shaped beam with automobile body installation front point, the automobile body installation mid point, the stabilizer bar, turn to quick-witted tie point, control arm front point and back point and install on a structure, reduce part quantity, improve the assembly precision, and this structure full play extruded section bar advantage that the yield is high, the mobility of make full use of casting process, the complicated profile of shaping reduces the quantity of welding seam, it is low than the whole casting sub vehicle frame degree of difficulty, the qualification rate is high, the energy-absorbing is effectual.
Drawings
Fig. 1 is a schematic structural view of the extruded section and the cast combined type electric vehicle front subframe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be understood that the terms "center", "horizontal", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the invention.
In the figure, a front cross member 100; the longitudinal beam 200; a left longitudinal beam 201; a right stringer 202; a support 300; a left front bracket 301; a right front bracket 302; a rear cross member 400; a middle cross member 500; a butterfly beam 600; a left butterfly beam 601; a right butterfly beam 602; the rear suspension mount 700.
As shown in fig. 1, the extruded section and cast combination type electric vehicle front subframe mainly comprises a front cross beam 100, a longitudinal beam 200, a bracket 300, a rear cross beam 400, a middle cross beam 500 and a butterfly beam 600, wherein in order to achieve light weight, the front cross beam 100, the longitudinal beam 200, the rear cross beam 400 and the middle cross beam 500 are formed by extrusion, and the bracket 300 and the butterfly beam 600 are formed by die casting, so that the advantage of high yield of the extruded section is fully exerted, the flowability of casting process is fully utilized, a complex profile is formed, and the number of connecting welding seams among the cross beam, the longitudinal beam 200, the bracket 300, the rear cross beam 400, the middle cross beam 500, the bracket 300 and the butterfly beam 600 is reduced.
Specifically, the front cross beam 100 is located at the front portion of the front subframe of the electric vehicle, the longitudinal beam 200 is located on the left side and the right side of the front cross beam 100, the longitudinal beam 200 comprises a left longitudinal beam 201 and a right longitudinal beam 202, the left longitudinal beam 201 and the right longitudinal beam 202 are located on the left side and the right side of the front cross beam 100 respectively, the support 300 is located between the longitudinal beam 200 and the front cross beam 100, the support 300 is in an H shape, weight is reduced, and Z-direction rigidity is guaranteed, power assembly suspension mounting points are mounted on the support 300 and are connected through bolts in a fastening mode, the support 300 is connected with a front vehicle body mounting point and is connected with the front cross beam 100 and the longitudinal beam 200, as a further optimization, the support 300 comprises a left front support 301 and a right front support 302, the left front support 301 is used for connecting the front cross beam 100 and the left longitudinal beam 201, and the right front support 302 is used for connecting the front cross beam 100 and the right longitudinal beam 202, and therefore lateral rigidity can be improved integrally.
The rear cross beam 400 is positioned at the rear part of the front auxiliary frame of the electric vehicle, and a butterfly beam 600 is connected between the rear cross beam 400 and the longitudinal beam 200; the middle cross beam 500 is positioned in the middle of the front auxiliary frame of the electric vehicle and connected with the butterfly beam 600, the rear suspension seat 700 is further arranged between the middle cross beam 500 and the rear cross beam 400, the rear suspension seat 700 is formed by extruding a hollow extruded section and is used for installing a power assembly suspension, and therefore the weight reduction effect is good, and the rigidity is strong, the biggest innovation of the patent is that the butterfly beam 600 is connected with the longitudinal beam 200, the middle cross beam 500 and the rear cross beam 400 to form a whole body, as further optimization, the butterfly beam 600 is provided with a vehicle body installation middle point, a stabilizer bar, a steering machine connecting point, a control arm front point and a rear point, the butterfly beam 600 comprises a left butterfly beam 601 and a right butterfly beam 602, the left butterfly beam 601 is connected with the left longitudinal beam 201, the middle cross beam 500 and the rear cross beam 400, the right butterfly beam 602 is connected with the right longitudinal beam 202, the middle cross beam 500 and the rear cross beam 400, namely, the middle cross beam 500 is connected with the left butterfly beam 601 and the right butterfly beam 602, improve the lateral rigidity of sub vehicle frame, provide the support for rear suspension seat 700 simultaneously, sub vehicle frame is with the automobile body installation mid point before the electric motor car of above structural design, the stabilizer bar, the steering gear tie point, a plurality of mounting points of control arm front point and rear point, link together with butterfly-shaped roof beam 600, can reduce the quantity of part, reduce welding deformation, can wholly subtract heavy 30% and lightweight requirement, to reducing energy consumption, improve continuation of the journey mileage and great help, the qualification rate is high, the casting degree of difficulty has been reduced, can satisfy the mode, rigidity requirement, intensity CAE requires.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein will be apparent to those skilled in the art without departing from the scope and spirit of the invention as defined in the accompanying claims.
Claims (7)
1. The utility model provides an auxiliary frame before combined electric motor car of extruded section and casting which characterized in that includes:
the front cross beam is positioned at the front part of the front auxiliary frame of the electric vehicle;
the longitudinal beams are positioned on the left side and the right side of the front cross beam;
the bracket is positioned between the longitudinal beam and the front cross beam, is connected with a front mounting point of the vehicle body and is also connected with the front cross beam and the longitudinal beam;
the rear cross beam is positioned at the rear part of the front auxiliary frame of the electric vehicle, and a butterfly beam is connected between the rear cross beam and the longitudinal beam;
the middle cross beam is positioned in the middle of the front auxiliary frame of the electric vehicle and connected with the butterfly beam, and the butterfly beam is connected with the longitudinal beam, the middle cross beam and the rear cross beam to form a whole.
2. The extruded section and cast combination electric vehicle front subframe of claim 1, wherein a rear suspension mount is further disposed between the center cross member and the rear cross member, wherein the rear suspension mount is a hollow extruded section extruded and used to mount the powertrain suspension.
3. The extruded section and cast combination electric vehicle front subframe of claim 1 or 2, wherein the bracket is H-shaped, and a powertrain mounting point is mounted on the bracket.
4. The extruded section and cast combination electric vehicle front subframe of claim 3, wherein said side rails comprise left and right side rails, said left and right side rails being located on left and right sides of said front cross member, respectively.
5. The extruded section and cast combination electric vehicle front subframe of claim 4, wherein said brackets comprise a left front bracket and a right front bracket, wherein said left front bracket is used for connecting a front cross member and a left side member, and said right front bracket is used for connecting a front cross member and a right side member.
6. The extruded section and cast combination electric vehicle front subframe of claim 5, wherein the butterfly beam has a vehicle body mounting midpoint, a stabilizer bar, a steering gear attachment point, a control arm forward point and a rear point, the butterfly beam comprises a left butterfly beam and a right butterfly beam, the left butterfly beam connects the left longitudinal beam, the middle transverse beam and the rear transverse beam, and the right butterfly beam connects the right longitudinal beam, the middle transverse beam and the rear transverse beam.
7. The extruded section and cast combination electric vehicle front subframe of claim 6, wherein the front cross member, the longitudinal members, the rear cross member and the middle cross member are extruded, and the brackets and the butterfly beams are die cast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120169981.8U CN214451307U (en) | 2021-01-21 | 2021-01-21 | Extrusion section bar and casting combined type electric vehicle front auxiliary frame |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120169981.8U CN214451307U (en) | 2021-01-21 | 2021-01-21 | Extrusion section bar and casting combined type electric vehicle front auxiliary frame |
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| CN214451307U true CN214451307U (en) | 2021-10-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112810697A (en) * | 2021-01-21 | 2021-05-18 | 宁波信泰机械有限公司 | Extrusion section bar and casting combined type electric vehicle front auxiliary frame |
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2021
- 2021-01-21 CN CN202120169981.8U patent/CN214451307U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112810697A (en) * | 2021-01-21 | 2021-05-18 | 宁波信泰机械有限公司 | Extrusion section bar and casting combined type electric vehicle front auxiliary frame |
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