CN111376982B - Frame rear end structure and electric automobile - Google Patents
Frame rear end structure and electric automobile Download PDFInfo
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- CN111376982B CN111376982B CN201811648747.2A CN201811648747A CN111376982B CN 111376982 B CN111376982 B CN 111376982B CN 201811648747 A CN201811648747 A CN 201811648747A CN 111376982 B CN111376982 B CN 111376982B
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- end structure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/11—Understructures, i.e. chassis frame on which a vehicle body may be mounted with resilient means for suspension, e.g. of wheels or engine; sub-frames for mounting engine or suspensions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/24—Arrangements for mounting bumpers on vehicles
- B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
- B60R19/34—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
- B62D21/152—Front or rear frames
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention relates to a frame rear end structure and an electric automobile. According to the frame rear end structure, the two motor mounting brackets are arranged on the longitudinal beams on the two sides, so that the motor shell can play the role of a cross beam due to the mounting of the motors on the motor mounting brackets, the arrangement of a part of the cross beam in the prior art can be omitted, the overall weight of the frame can be reduced, the lightweight design is facilitated, meanwhile, the frame is guaranteed to have better structural strength and rigidity, and the frame rear end structure can have a better using effect.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a frame rear end structure. Meanwhile, the invention also relates to an electric automobile with the frame rear end structure.
Background
Electric automobile frame has longeron and crossbeam usually simultaneously among the prior art to add and establish sub vehicle frame structure, the motor is installed on frame crossbeam or sub vehicle frame, adds the part and leads to whole car weight increase, is unfavorable for whole car lightweight design, also leads to electric automobile's energy consumption to increase simultaneously, and the mileage of continuing a journey reduces.
Disclosure of Invention
In view of the above, the present invention is directed to a rear end structure of a vehicle frame, so as to reduce the weight of the vehicle frame and facilitate a light weight design.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the utility model provides a frame rear end structure, includes the longeron of placing in both sides in the frame, frame rear end structure still includes:
a rear damper tower assembly including two rear damper towers disposed at the longitudinal beams on both sides in opposition;
the rear cross beam is connected between the longitudinal beams on the two sides;
the rear anti-collision beam assembly is fixedly connected to the end parts of the longitudinal beams on the two sides;
the rear suspension mounting assemblies are two groups respectively arranged on the longitudinal beams on the two sides;
the rear motor mounting assembly comprises two motor mounting brackets which are oppositely arranged on the longitudinal beams on the two sides;
the suspension assembly comprises a plurality of suspension mounting brackets which are respectively arranged on the longitudinal beams at two sides, and a suspension is arranged in each suspension mounting bracket.
Further, the longitudinal beams are divided into front-section longitudinal beams and rear-section longitudinal beams connected in series by the rear shock absorber tower due to the connection of the rear shock absorber tower.
Further, the rear shock absorber tower comprises a rear shock absorber support, a rear shock absorber mounting seat connected to the top of the rear shock absorber support, and a tower top support frame connected to one side of the rear shock absorber support; the rear shock absorber mounting seat is provided with a shock absorber through hole, and a shock absorber mounting part is arranged on one side of the shock absorber through hole; the rear shock absorber support is connected between the front-section longitudinal beam and the rear-section longitudinal beam in series, the tower top support frame is connected between the front-section longitudinal beam and one side of the shock absorber support, and a half shaft channel is formed between the bottom of the rear shock absorber support and the front-section longitudinal beam in an enclosing mode.
Furthermore, a rear shock absorber support reinforcing plate is arranged in the rear shock absorber support.
Further, back suspension installation assembly include in back last control arm installation department that sets up in the back bumper shock absorber support, and in back last swing arm installation department and back lower swing arm installation department that sets up in the top of the tower support frame still include with back lower control arm installation department and toe-in arm installation department that the longeron linked firmly.
Further, control arm installation department is gone up including linking firmly in control arm installing support is gone up to the back in the rear shock absorber support, control arm installing support is gone up to the back and is close to in one side inner wall of rear shock absorber support arranges, and in it is equipped with the control arm mounting hole to correspond on control arm installing support and this side inner wall to go up the back.
Further, the rear upper swing arm mounting part and the rear lower swing arm mounting part are arranged in the tower top support frame at the rear upper swing arm mounting bracket and the rear lower swing arm mounting bracket from top to bottom, and swing arm mounting holes are formed in the rear upper swing arm mounting bracket and the rear lower swing arm mounting bracket respectively.
Furthermore, in each of the suspension mounting brackets on both sides, one of the suspension mounting brackets is formed by the tower top support frame, and the suspension is supported on the top of the tower top support frame.
Furthermore, the motor mounting brackets on two sides are respectively fixedly connected to the tower top support frames on the corresponding sides.
Furthermore, the rear cross beam is connected between the front longitudinal beams on the two sides, and a rear reinforcing beam is arranged between the rear longitudinal beams on the two sides and the rear cross beam.
Further, the rear reinforcing beam is in an X shape.
Furthermore, the rear anti-collision beam assembly comprises rear crumple beams respectively connected to the end parts of the longitudinal beams on the two sides, and rear anti-collision beams connected between the rear crumple beams on the two sides.
Furthermore, a rear guard plate is fixedly connected to the rear cross beam.
Furthermore, the suspension comprises an outer sleeve which is arranged in the suspension mounting bracket in a pressing mode, and an inner sleeve which is arranged in the outer sleeve in a penetrating mode, the outer sleeve and the inner sleeve are fixedly connected together through a rubber bushing arranged between the outer sleeve and the inner sleeve, and two ends of the inner sleeve respectively extend out of the outer sleeve; the screw rod is characterized by further comprising a gasket buckled at one end of the inner sleeve, and a screw rod penetrating through the gasket and arranged on the inner sleeve, wherein the screw head of the screw rod is clamped on one side of the gasket, the rod body of the screw rod extends out of the inner sleeve, and a limiting mechanism limiting the gasket to rotate relative to the inner sleeve is arranged between the gasket and the inner sleeve.
Furthermore, the limiting mechanism comprises a limiting groove formed at one end of the inner sleeve close to the gasket and a limiting bulge arranged on the gasket and embedded in the limiting groove; and follow extremely close to the one end of gasket, interior sheathed tube internal diameter diminishes and sets up, the spacing groove is for following interior sheathed tube radial indent shaping in on interior sheathed tube inner wall.
Compared with the prior art, the invention has the following advantages:
according to the frame rear end structure, the two motor mounting brackets are arranged on the longitudinal beams on the two sides, so that the motor shell can play the role of a cross beam due to the mounting of the motors on the motor mounting brackets, the arrangement of a part of the cross beam in the prior art can be omitted, the overall weight of the frame can be reduced, the lightweight design is facilitated, meanwhile, the frame is guaranteed to have better structural strength and rigidity, and the frame rear end structure can have a better using effect.
Another object of the present invention is to provide an electric vehicle, which includes a frame, and the frame has the frame rear end structure as described above.
According to the electric automobile, by adopting the frame rear end structure, the overall weight of the frame can be reduced, the light weight design is facilitated, and meanwhile, the frame has good transverse strength and rigidity, so that the electric automobile has good side impact safety.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of a rear end structure of a vehicle frame according to a first embodiment of the present invention;
FIG. 2 is a schematic structural view of the rear end structure of the frame according to the first embodiment of the present invention from another perspective;
FIG. 3 is a schematic view of an installation structure of the rear absorber tower on the longitudinal beam according to the first embodiment of the present invention;
fig. 4 is a schematic view of an installation structure of the rear absorber tower at another view angle on the longitudinal beam according to the first embodiment of the present invention;
FIG. 5 is a schematic structural diagram of an aft absorber tower according to a first embodiment of the present invention;
FIG. 6 is a schematic structural view of the rear absorber tower from another perspective according to the first embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a rear shock absorber support according to a first embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a rear shock absorber mount according to another perspective of the first embodiment of the present invention;
FIG. 9 is a schematic structural diagram of a suspension according to a first embodiment of the present invention;
FIG. 10 is a schematic structural diagram of the suspension according to the first embodiment of the present invention from another perspective;
FIG. 11 is a view illustrating the connection between the outer sleeve and the inner sleeve according to the first embodiment of the present invention;
fig. 12 is a schematic structural view of an inner casing according to a first embodiment of the present invention;
FIG. 13 is a cross-sectional view taken along line B-B of FIG. 12;
FIG. 14 is an assembled view of a gasket and washer according to one embodiment of the present invention;
FIG. 15 is a view showing an assembled state of the screw, the washer and the washer according to the first embodiment of the present invention;
description of reference numerals:
1-longitudinal beam, 101-front-section longitudinal beam, 102-rear-section longitudinal beam;
2-rear cross beam;
3-rear shock absorber tower, 301-rear shock absorber support, 3011-semicircular hole, 302-rear upper control arm mounting bracket, 303-rear shock absorber support reinforcing plate, 304-rear shock absorber mounting base, 3041-shock absorber through hole;
4-suspension, 401-outer sleeve, 402-rubber bushing, 403-inner sleeve, 4031-limit groove, 404-screw, 405-gasket, 4051-limit projection, 4052-fabrication hole, 406-gasket;
5-tower top support frame, 6-motor mounting bracket, 7-rear guard plate, 8-rear lower control arm mounting bracket, 9-toe arm mounting bracket, 10-rear anti-collision beam, 11-reinforcing beam, 12-rear upper swing arm mounting bracket and 13-rear lower swing arm mounting bracket.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example one
The embodiment relates to a frame rear end structure, as shown in fig. 1 and 2, in the overall structure, the frame rear end structure mainly comprises longitudinal beams 1 arranged on two sides in a frame, a rear shock absorber tower assembly, a rear cross beam 2, a rear anti-collision beam assembly, a rear suspension mounting assembly, a rear motor mounting assembly and a suspension assembly. Wherein the rear shock absorber tower assembly comprises two rear shock absorber towers 3 which are oppositely arranged at the longitudinal beams 1 at both sides. The rear suspension mounting assemblies are two groups respectively arranged on the longitudinal beams 1 at two sides. Then the motor installation assembly includes two motor installing supports 6 that set up on the longeron 1 of both sides relatively, can constitute the connection between motor and two longerons 1 because of the installation of motor on two motor installing supports 6 from this to can make the motor play the effect of crossbeam. The suspension assembly of the present embodiment specifically includes a plurality of suspension mounting brackets respectively disposed on the longitudinal beams 1 at both sides, and a suspension 4 is disposed in each suspension mounting bracket.
Specifically, as shown in fig. 1 and 2, the side member 1 of the present embodiment is divided into a front side member 101 and a rear side member 102 connected in series by the rear absorber tower 3 due to the connection of the rear absorber tower 3. The rear cross member 2 is connected specifically between the front side members 101 on both sides, and a rear reinforcement member 11 is provided between the rear side members 102 on both sides and the rear cross member 2 in order to improve the structural strength of the vehicle frame. In order to further enhance the use effect, the rear cross member 2 of the present embodiment is configured in an "X" shape. In addition, in order to improve the use effect of the frame, especially the anti-collision, dustproof and waterproof effect, as shown in fig. 2, a rear guard plate is fixedly connected to the bottom of the rear cross beam 2.
The rear impact beam assembly of the present embodiment is fixedly connected to the ends of the side longitudinal beams 1, and includes rear crush beams respectively connected to the ends of the side longitudinal beams 1, and a rear impact beam 10 connected between the rear crush beams on both sides. The rear collapsing beam of the embodiment specifically adopts the energy absorption box, and the specific structure of the rear collapsing beam can refer to the prior art.
As shown in fig. 3 to 6, the rear absorber tower 3 mainly includes, in its overall structure, a rear absorber support 301 connected in series between the front side member 101 and the rear side member 102, a rear absorber mount 304 connected to the top of the rear absorber support 301, and a tower top support frame 5 connected between one side of the rear absorber support 301 and the front side member 101.
Specifically, as shown in fig. 7 and 8, the rear shock absorber support 301 of the present embodiment is formed by bending a sheet metal member, and a section thereof is particularly formed in a "U" shape, so that a cavity can be formed in the rear shock absorber support 301, and the structural strength of the rear shock absorber support 301 can be improved, thereby improving the load-bearing effect of the rear shock absorber. It should be noted that the cross section of the rear shock absorber support 301 of the present embodiment may be configured in a "C" shape, a semicircular shape, and other structures besides the "U" shape. Further, a semicircular hole 3011 is formed at the bottom end of the rear cushion holder 301, and a semicircular notch is formed in the front side member 101 corresponding to the semicircular hole 3011, and the notch and the semicircular hole 3011 form a half shaft passage. In addition, in order to further improve the structural strength of the rear cushion mount 301, a burring is formed at the edge thereof.
In addition, in order to improve the use effect, as shown in fig. 5, a rear shock absorber support reinforcing plate 303 is arranged in the rear shock absorber support 301, and the rear shock absorber support reinforcing plate 303 is configured into a convex bulge shape, so that when the rear shock absorber support reinforcing plate 303 is fixedly connected with the inner wall of the rear shock absorber support 301, the rear shock absorber support reinforcing plate 303 and the inner wall of the rear shock absorber support 301 form a closed stress space, thereby improving the structural strength of the rear shock absorber tower 3 and further improving the support effect on the rear shock absorber.
The rear shock absorber mounting base 304 has a structure shown in fig. 4 and 5, and is integrally formed in a truncated cone-shaped tubular structure, a shock absorber passing hole 3041 communicating with the cavity is formed at the top of the tubular structure, and a shock absorber mounting portion is disposed at one side of the shock absorber passing hole 3041. In addition, for convenience of manufacturing, the rear shock absorber mounting portion of the present embodiment is specifically a shock absorber mounting hole disposed on one side of the shock absorber via 3041. Based on the structure of the rear shock absorber in the prior art, the shock absorber mounting holes of the present embodiment are specifically three ring shock absorber via holes 3041 arranged at intervals. It should be noted that, the shock absorber mounting portion of this embodiment may be a nut fixedly connected to the shock absorber mounting seat, and a through hole is formed on the shock absorber mounting seat corresponding to the nut, and at this time, the fastener may sequentially pass through the rear shock absorber and the through hole and be screwed with the nut, so that the rear shock absorber may be mounted on the rear shock absorber mounting seat 304.
The structure of the tower top support 5 of this embodiment is shown in fig. 6 and comprises a housing formed by the perimeter of the top and rear edges, which are secured to the rear shock absorber mounts 301, and the bottom ends of the rear and side edges, which are secured to the longitudinal beams 1. In addition, in order to improve the connection effect, the top edge, the rear edge and the side edge are respectively provided with an outward flange, and the tower top support frame 5 is respectively fixedly connected with the rear shock absorber support 301 and the longitudinal beam 1 through the outward flanges. In addition, in order to improve the use effect, a mounting hole of the suspension 4 for accommodating the suspension 4 is formed on the top edge of the tower top support frame 5.
Based on the arrangement position of the rear shock absorber tower 3 on the longitudinal beam 1 and the structure, as shown in fig. 4 and 6, in this embodiment, the motor mounting brackets 6 on both sides are respectively fixedly connected to the tower top support frames 5 on the corresponding sides, so that the motor mounting brackets 6 and the longitudinal beam 1 are fixedly connected in an indirect manner. And in order to improve the connection stability, the motor mounting bracket 6 of the embodiment is fixedly connected with the rear shock absorber support 301 and the rear side of the tower top support frame 5. In addition, in order to improve the convenience of manufacturing, the motor mounting bracket 6 of the present embodiment is formed by bending the motor mounting plate, and in order to improve the structural strength of the motor mounting bracket 6, a convex bulge is formed on the motor mounting plate.
As shown in fig. 1 and 2, the rear suspension mounting assembly according to the present embodiment specifically includes a rear upper swing arm mounting portion disposed in a cavity of the rear shock absorber support 301, a rear upper swing arm mounting portion and a rear lower swing arm mounting portion disposed in the tower top support frame 5, and a rear lower control arm mounting portion and a toe arm mounting portion fixedly connected to the longitudinal beam 1.
As shown in fig. 2 and 5, the rear upper control arm mounting part specifically includes a rear upper control arm mounting bracket 302 fixedly connected in the rear shock absorber support 301, and in order to improve the structural strength, the rear upper control arm mounting bracket 302 of this embodiment is specifically configured to be "L" shaped, and is arranged close to the inner wall of one side of the rear shock absorber support 301, and control arm mounting holes are correspondingly provided on the inner wall of the side and the rear upper control arm mounting bracket 302. In addition, in this embodiment, in order to facilitate the implementation of the fixed connection between the rear upper control arm mounting bracket 302 and the inner wall of the rear shock absorber support 301, an outward flange is also configured at the edge of the rear upper control arm mounting bracket 302, so that the outward flange can be fixedly connected with the inner side wall of the rear shock absorber support 301.
As shown in fig. 2, the rear lower control arm mounting portion of the present embodiment is specifically a rear lower control arm mounting bracket 8 fixedly connected to the front side member 101, and in order to improve the mounting strength, the rear lower control arm mounting bracket 8 is configured in a "U" shape, and control arm mounting holes arranged through both sides are also configured thereon. Referring to fig. 2 and 5, the rear upper swing arm mounting part and the rear lower swing arm mounting part of the present embodiment are specifically a rear upper swing arm mounting bracket 12 and a rear lower swing arm mounting bracket 13 which are arranged up and down in the tower top support frame 5, and in order to improve structural strength, the rear upper swing arm mounting bracket 12 and the rear lower swing arm mounting bracket 13 are also configured in a "U" shape, and swing arm mounting holes are respectively formed in the two.
The structure of the suspension 4 of this embodiment is as shown in fig. 9 and fig. 10, and mainly includes, in its overall structure, an outer sleeve 401, an inner sleeve 403 penetrating through the outer sleeve 401, a spacer 405 fastened to one end of the inner sleeve 403, a screw 404 penetrating through the spacer 405 and the inner sleeve 403, and a position-limiting mechanism disposed between the spacer 405 and the inner sleeve 403. As shown in fig. 11, the outer sleeve 401 and the inner sleeve 403 of the present embodiment are vulcanized and fixed together by a rubber bushing 402 disposed therebetween, and two ends of the inner sleeve 403 respectively extend out of the outer sleeve 401. As shown in fig. 9, in the assembled state of the suspension 4, the screw head of the screw 404 is caught on the side of the washer 405, and the shaft of the screw 404 is protruded from the inner tube 403 for screw-connection with the internal thread constructed on the vehicle body.
The limiting mechanism of the embodiment is mainly used for limiting the rotation of the gasket 405 relative to the inner sleeve 403, so that when the suspension 4 is applied to the connection between the vehicle body and the vehicle frame, the stability of the connection between the vehicle body and the vehicle frame can be improved. Referring to fig. 12, 13 and 14, based on the basic structure of the inner sleeve 403 and the spacer 405, the position-limiting mechanism of the present embodiment includes a position-limiting groove 4031 formed at one end of the inner sleeve 403 close to the spacer 405, and a position-limiting protrusion 4051 provided on the spacer 405 and fitted in the position-limiting groove 4031. In order to improve the insertion stability of the limiting protrusion 4051 into the limiting groove 4031 and further improve the limiting effect, as shown in fig. 13, the limiting groove 4031 of this embodiment is formed on the inner wall of the inner sleeve 403 in a concave manner along the radial direction of the inner sleeve 403.
Based on the above structure, in order to prevent the structural strength of the inner tube 403 from being reduced by the formation of the stopper groove 4031, the inner diameter of the inner tube 403 is set to be smaller toward the end close to the spacer 405, so that the wall thickness of the end of the inner tube 403 at which the stopper groove 4031 is formed can be made larger. In addition, in order to further reduce the influence of the provision of the retaining groove 4031 on the structural strength of the inner sleeve 403, the retaining groove 4031 of the present embodiment is specifically configured as a right triangular groove as shown in fig. 13, and this arrangement also facilitates insertion of a retaining protrusion 4051 described below into the retaining groove 4031.
As shown in fig. 14, the gasket 405 of the present embodiment is configured in a circular ring shape as a whole, and for convenience of manufacturing, the above-mentioned limiting protrusion 4051 is integrally formed by bending the gasket 405 itself, and in addition, the position accuracy of the limiting protrusion 4051 on the gasket 405 can be improved by such a configuration, so that the matching effect of the limiting protrusion 4051 and the limiting groove 4031 can be improved, and the limiting effect of the limiting mechanism can be further improved. In addition, a process hole 4052 is formed in the pad 405 to reduce weight. The process holes 4052 may be specifically configured on the pad 405, and the specific shape thereof may be a rectangle as shown in fig. 14, or other structures such as a circle, an ellipse, or a triangle.
In this embodiment, in order to further improve the limiting effect of the limiting mechanism, as shown in fig. 13, the limiting grooves 4031 are specifically two grooves symmetrically arranged on the inner wall of the inner sleeve 403. Correspondingly, the two limiting protrusions 4051 are symmetrically arranged on the gasket 405. The number of the retaining grooves 4031 may be three, four, or five, or another number, instead of two, which are symmetrically provided, and which are provided at intervals in the circumferential direction of the inner tube 403. Accordingly, the stopper protrusion 4051 may be formed in plural on the spacer 405 so as to fit in the stopper groove 4031.
In addition, in order to further improve the use effect of the suspension 4, as shown in fig. 15, a washer 406 sleeved on the screw 404 is clamped between the screw head of the screw 404 and the washer 405, so that not only can the inner sleeve 403 be prevented from being damaged when the screw 404 is fastened, but also the washer 406 can be pressed after the screw 404 is fastened based on the elastic performance of the washer 406, thereby improving the stability of the suspension 4 on the connection between the vehicle body and the vehicle frame. In addition, in order to prevent dust, mud, etc. from entering the structure of the suspension 4, the washer 405 of this embodiment is provided with a larger diameter than the outer sleeve 401, as shown in fig. 9.
When the suspension 4 of this embodiment is installed on the mount 4 of the suspension 4, the outer sleeve 401 is press-fitted into the mounting hole of the vehicle frame by interference, the washer 406 and the gasket 405 are sequentially sleeved on the screw 404, the screw 404 is then inserted into the inner sleeve 403, the limiting protrusion 4051 on the gasket 405 is clamped into the limiting groove 4031 of the inner sleeve 403, and finally the screw 404 is screwed so that the screw 404 is screwed with the threaded hole on the vehicle body, and the connection between the vehicle frame and the vehicle body can be formed by the suspension 4.
Based on the above overall description, the frame rear end structure described in this embodiment, through locating two motor installing supports 6 on longeron 1 of both sides to can make motor casing play the effect of crossbeam because of the installation of motor on motor installing support 6, and can save the setting of part crossbeam among the prior art, not only can alleviate the whole weight of frame and do benefit to the lightweight design, also guarantee simultaneously that the frame has better structural strength and rigidity, and then can make this frame rear end structure have better result of use.
Example two
The embodiment relates to an electric automobile, which comprises a frame, wherein the frame is provided with a frame rear end structure according to the first embodiment.
The electric automobile of this embodiment, through adopting as embodiment one frame rear end structure, the whole weight of reducible frame, and do benefit to lightweight design, simultaneously, also can make the frame have better transverse strength and rigidity to can make this electric automobile have better side and bump the security.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (13)
1. The utility model provides a frame rear end structure, includes longeron (1) of placing in both sides in the frame, its characterized in that: the frame rear end structure still includes:
the rear shock absorber tower assembly comprises two rear shock absorber towers (3) which are oppositely arranged at the longitudinal beams (1) on two sides, and the longitudinal beams (1) are divided into front longitudinal beams (101) and rear longitudinal beams (102) which are connected in series by the rear shock absorber towers (3) due to the connection of the rear shock absorber towers (3); the rear shock absorber tower (3) comprises a rear shock absorber support (301), a rear shock absorber mounting seat (304) connected to the top of the rear shock absorber support (301), and a tower top support frame (5) connected to one side of the rear shock absorber support (301);
the rear cross beam (2) is connected between the front longitudinal beams (101) on the two sides;
the rear anti-collision beam assembly is fixedly connected to the end parts of the longitudinal beams (1) on the two sides;
the rear suspension mounting assemblies are two groups respectively arranged on the longitudinal beams (1) at two sides;
the rear motor mounting assembly comprises two motor mounting brackets (6) which are oppositely arranged on the longitudinal beams (1) at two sides, the two motor mounting brackets are respectively arranged at the inner sides of the longitudinal beams at the corresponding sides, and the motor mounting brackets (6) at two sides are respectively fixedly connected to the tower top supporting frame (5) at the corresponding side;
the suspension assembly comprises a plurality of suspension mounting brackets which are respectively arranged on the longitudinal beams (1) at two sides, a suspension (4) is arranged in each suspension mounting bracket, one suspension mounting bracket is arranged in each suspension mounting bracket at two sides and is composed of the tower top supporting frame (5), and the suspension (4) is supported and arranged at the top of the tower top supporting frame (5).
2. The frame rear end structure according to claim 1, characterized in that: a shock absorber through hole (3041) is formed in the rear shock absorber mounting seat (304), and a shock absorber mounting part is arranged on one side of the shock absorber through hole (3041); the rear shock absorber support (301) is connected in series between the front-section longitudinal beam (101) and the rear-section longitudinal beam (102), the tower top support frame (5) is connected between the front-section longitudinal beam (101) and one side of the shock absorber support, and a half-shaft channel is formed between the bottom of the rear shock absorber support (301) and the front-section longitudinal beam (101).
3. The frame rear end structure according to claim 2, characterized in that: and a rear shock absorber support reinforcing plate (303) is arranged in the rear shock absorber support (301).
4. The frame rear end structure according to claim 2, characterized in that: rear suspension installation assembly include in the back that sets up in rear shock absorber support (301) is gone up the control arm installation department, and in swing arm installation department and back lower swing arm installation department are gone up to the back that sets up in top of the tower support frame (5), still include with back lower control arm installation department and toe-in arm installation department that longeron (1) linked firmly.
5. The frame rear end structure according to claim 4, characterized in that: control arm installation department is gone up including linking firmly in control arm installing support (302) are gone up to the back in rear shock absorber support (301), control arm installing support (302) are close to in the back is gone up one side inner wall of rear shock absorber support (301) and is arranged, and in the back is gone up and is corresponded on control arm installing support (302) and this side inner wall and be equipped with the control arm mounting hole.
6. The frame rear end structure according to claim 5, characterized in that: the swing arm installation department is gone up in the back with after the swing arm installation department arranges for upper and lower in after in top of the tower support frame (5) swing arm installing support (12) and after swing arm installing support (13) down, and in be equipped with the swing arm mounting hole on after going up swing arm installing support (12) and after swing arm installing support (13) respectively.
7. The frame rear end structure according to claim 1, characterized in that: the rear cross beam (2) is connected between the front longitudinal beams (101) on two sides, and a rear reinforcing beam (11) is arranged between the rear longitudinal beams (102) on two sides and the rear cross beam (2).
8. The frame rear end structure according to claim 7, characterized in that: the rear reinforcing beam (11) is in an X shape.
9. The frame rear end structure according to claim 1, characterized in that: the rear anti-collision beam assembly comprises rear collapse beams which are respectively connected to the end parts of the longitudinal beams (1) on the two sides, and rear anti-collision beams (10) which are connected between the rear collapse beams on the two sides.
10. The frame rear end structure according to claim 1, characterized in that: and a rear guard plate (7) is fixedly connected to the rear cross beam (2).
11. The frame rear end structure according to any one of claims 1 to 10, characterized in that: the suspension (4) comprises an outer sleeve (401) pressed in the suspension mounting bracket and an inner sleeve (403) arranged in the outer sleeve (401) in a penetrating mode, the outer sleeve (401) and the inner sleeve (403) are fixedly connected together through a rubber bushing (402) arranged between the outer sleeve and the inner sleeve, and two ends of the inner sleeve (403) extend out of the outer sleeve (401) respectively; the device is characterized by further comprising a gasket (405) buckled at one end of the inner sleeve (403), and a screw (404) arranged on the gasket (405) and the inner sleeve (403) in a penetrating mode, wherein the screw head of the screw (404) is clamped on one side of the gasket (405), the shaft body of the screw (404) extends out of the inner sleeve (403), and a limiting mechanism for limiting the gasket (405) to rotate relative to the inner sleeve (403) is arranged between the gasket (405) and the inner sleeve (403).
12. The frame rear end structure according to claim 11, characterized in that: the limiting mechanism comprises a limiting groove (4031) formed at one end of the inner sleeve (403) close to the gasket (405), and a limiting protrusion (4051) arranged on the gasket (405) and embedded in the limiting groove (4031); and along to being close to the one end of gasket (405), the internal diameter of interior sleeve pipe (403) reduces the setting gradually, spacing groove (4031) is for following the radial indent of interior sleeve pipe (403) is formed on the inner wall of interior sleeve pipe (403).
13. The utility model provides an electric automobile, includes the frame, its characterized in that: the frame has a frame rear end structure according to any one of claims 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811648747.2A CN111376982B (en) | 2018-12-30 | 2018-12-30 | Frame rear end structure and electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811648747.2A CN111376982B (en) | 2018-12-30 | 2018-12-30 | Frame rear end structure and electric automobile |
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| Publication Number | Publication Date |
|---|---|
| CN111376982A CN111376982A (en) | 2020-07-07 |
| CN111376982B true CN111376982B (en) | 2021-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811648747.2A Active CN111376982B (en) | 2018-12-30 | 2018-12-30 | Frame rear end structure and electric automobile |
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| Country | Link |
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| CN (1) | CN111376982B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4279362A4 (en) * | 2021-11-04 | 2024-03-20 | Contemporary Amperex Technology Co Ltd | Longitudinal beam assembly and automobile chassis |
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| Publication number | Publication date |
|---|---|
| CN111376982A (en) | 2020-07-07 |
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