CN118182641A - Vehicle rear structure - Google Patents
Vehicle rear structure Download PDFInfo
- Publication number
- CN118182641A CN118182641A CN202211598413.5A CN202211598413A CN118182641A CN 118182641 A CN118182641 A CN 118182641A CN 202211598413 A CN202211598413 A CN 202211598413A CN 118182641 A CN118182641 A CN 118182641A
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- CN
- China
- Prior art keywords
- vehicle
- rear side
- wheel house
- side frame
- leg
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000006096 absorbing agent Substances 0.000 claims description 2
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Body Structure For Vehicles (AREA)
Abstract
The invention provides a vehicle rear structure with high rigidity to ensure vehicle body safety. The vehicle rear structure includes: a rear floor panel including a rear side frame extending in a vehicle front-rear direction; a wheel house disposed above the rear side frame in the vehicle vertical direction; and a leg extending outward in the vehicle width direction from the rear side frame, the leg being configured as a part of the wheel house, wherein the leg includes an extension portion that extends upward in the vehicle up-down direction so as to protrude from the rear side frame.
Description
Technical Field
The present invention relates to a vehicle rear structure.
Background
In order to enable the vehicle to be safely and comfortably carried by all, research and development to improve the rigidity of the vehicle body have been conducted. In the prior art related to the vehicle rear structure, the wheel house is directly joined to the floor panel and the rear side frame, and therefore, there is no good load conduction path, and the wheel house is likely to be deformed. In addition, with recent increase in the number of battery-mounted vehicles, the load on the vehicle body is larger than before, and a structure with higher rigidity is required to support the vehicle body. The present invention has been made to solve the above problems, and an object thereof is to provide a vehicle rear structure having high connection strength to ensure rigidity and safety, and further to provide a transfer system capable of being permanently used.
Disclosure of Invention
The invention provides a vehicle rear structure with high rigidity to ensure vehicle body safety.
The vehicle rear structure of the invention includes: a rear floor panel including a rear side frame extending in a vehicle front-rear direction; a wheel house disposed above the rear side frame in the vehicle vertical direction; and a leg extending outward in the vehicle width direction from the rear side frame, the leg being configured as a part of the wheel house, wherein the leg includes an extension portion that extends upward in the vehicle up-down direction so as to protrude from the rear side frame.
In an embodiment of the present invention, the wheel house includes a ridge line extending downward in the vehicle up-down direction from the damper support portion, and the extending portion of the leg is engaged with the ridge line.
In an embodiment of the present invention, the extending portion includes a first engaging portion that engages with the wheel house and a second engaging portion that engages with the rear side frame, and the first engaging portion is disposed above the second engaging portion in the vehicle up-down direction.
In an embodiment of the present invention, a notch is formed in a lower end portion of the ridge of the wheel house, the notch is located above the rear side frame in the vehicle up-down direction, the first engagement portion is disposed above the notch in the vehicle up-down direction, and the second engagement portion is disposed in the notch.
In an embodiment of the present invention, the ridge includes a first ridge portion extending straight from the damper support portion to a lower side in the vehicle vertical direction and to a rear side in the vehicle front-rear direction, and a second ridge portion extending from the first ridge portion to a lower side in the vehicle vertical direction.
In an embodiment of the present invention, the leg further includes a body portion extending outward in the vehicle width direction, and a flange portion extending in the vehicle longitudinal direction with respect to an inner end portion of the body portion in the vehicle width direction, the body portion and the flange portion being coupled by a coupling portion, the extending portion extending upward in the vehicle vertical direction from the coupling portion.
In an embodiment of the present invention, the rear side frame includes a sub frame fastening portion fastening a sub frame at a lower surface of the rear side frame, and the leg further includes a third engaging portion engaged with the sub frame fastening portion, the third engaging portion being disposed below the extending portion in the vehicle up-down direction.
In an embodiment of the present invention, an inner side wall of the wheel house on an inner side in the vehicle width direction includes a convex strip extending along the first ridge line portion.
In an embodiment of the invention, a rear side wall of the wheel house on a rear side in the vehicle front-rear direction includes a planar portion formed to extend from the absorber support portion along an extending direction of the first ridgeline portion.
In an embodiment of the present invention, the vehicle rear structure further includes: and a flat panel portion disposed rearward of the wheel house in the vehicle longitudinal direction and outward of the rear side frame in the vehicle width direction, wherein the leg is joined to the wheel house so as to be sandwiched between the flat panel portion and the wheel house, and the leg is positioned below the flat panel portion in the vehicle vertical direction.
As described above, the vehicle rear structure according to the present invention includes the leg extending outward in the vehicle width direction from the rear side frame, and the leg includes the extending portion protruding upward from the rear side frame. In this way, the leg can directly carry the load conducted to the wheel house, and the incoming load can be shared by the rear side frame and the leg at the same time. Further, the overall rigidity of the wheel house is improved, and deformation is less likely to occur. Accordingly, the vehicle rear structure of the invention has high rigidity to ensure vehicle body safety.
Drawings
Fig. 1 is a perspective view of a vehicle rear structure of an embodiment of the invention.
Fig. 2 is a partial side view of the vehicle rear structure of fig. 1 in the width direction.
Fig. 3 is a partial enlarged view of the vehicle rear structure of fig. 2.
Description of the reference numerals
100: A vehicle rear structure;
110: a rear floor panel;
112: a rear side truck side frame;
112a: a subframe fastening section;
120: a wheel housing;
122: a ridge;
122a: a first ridge portion;
122b: a second ridge portion;
122c: a notch;
124: an inner sidewall;
124a: a convex strip;
126: a rear sidewall;
126a: a planar portion;
130: a support leg;
132: an extension;
134: a body portion;
136: a flange portion;
138: a connecting part;
140: a planar panel portion;
200: a damper support;
300: an auxiliary frame;
c1: a first joint;
c2: a second joint;
And C3: a third joint;
X: the vehicle front-rear direction;
Y: a vehicle width direction;
z: the vehicle is in the up-down direction.
Detailed Description
Fig. 1 is a perspective view of a vehicle rear structure of an embodiment of the invention. Fig. 2 is a left side view of the vehicle rear structure of fig. 1. Fig. 3 is a partial enlarged view of the vehicle rear structure of fig. 2. In the present embodiment, the vehicle rear structure 100 is, for example, a rear structure of a common passenger car, but the present invention is not limited thereto. Reference will now be made in detail to the exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings and the description to refer to the same or like parts. In addition, unless otherwise specified, the "front" and "upper" used in the following description represent directions indicated by arrows in the vehicle front-rear direction X and the vehicle up-down direction Z in the drawings, and the "rear" and "lower" used in the description represent opposite directions indicated by the foregoing arrows; the terms "outer" and "inner" used in the specification are relative to each other in the vehicle width direction Y, and are not limited to the directions indicated by the arrows in the vehicle width direction Y.
Referring to fig. 1 to 3, in the present embodiment, a vehicle rear structure 100 includes a rear floor panel 110, a wheel house 120, and legs 130. The rear floor panel 110 includes rear side frames 112, and the rear side frames 112 are disposed at opposite ends in the vehicle width direction Y in the vehicle rear structure 100 and extend along the vehicle front-rear direction X (only one is illustrated in the drawing). The wheel house 120 is disposed above the rear side frame 112 in the vehicle vertical direction Z. The leg 130 extends outward in the vehicle width direction Y from the rear side frame 112 (see fig. 3), and the leg 130 is configured as a part of the wheel house 120. The leg 130 includes an extension 132 (see fig. 2) extending upward so as to protrude from the rear side frame 112 in the vehicle vertical direction Z. The wheel house 120 is formed from the rear side frame 112 leg 130 upward in the vehicle vertical direction Z and joined together by welding, for example, but may be formed by other means such as integral molding.
As can be seen from this, the vehicle rear structure 100 of the present embodiment includes the leg 130 extending outward in the vehicle width direction Y from the rear side frame 112, and the leg 130 includes the extension 132 protruding upward from the rear side frame 112. In this way, the leg 130 can directly carry the load conducted to the wheel house 120, and the incoming load can be shared by both the rear side frame 112 and the leg 130. Further, the overall rigidity of the wheel house 120 is improved, and deformation is less likely to occur. Accordingly, the vehicle rear structure 100 of the invention has high rigidity to ensure vehicle body safety.
With continued reference to fig. 1, in the present embodiment, the wheel house 120 includes a ridge 122 extending downward in the vehicle up-down direction Z from the damper support portion 200. The ridge 122 is, for example, located at the boundary between an inner wall 124 and a rear wall 126 of the wheel house 120, which will be described later. The extension 132 of the leg 130 engages the ridge 122. Accordingly, the load transmitted from the damper support portion 200 can be transmitted to the leg 130 along the ridge line 122, and the leg 130 can support the wheel house 120 below, thereby improving the rigidity of the entire wheel house 120. The extension 132 includes a first engagement portion C1 and a second engagement portion C2, the first engagement portion C1 being engaged with the wheel house 120, and the second engagement portion C2 being engaged with the rear side frame 112. The first joint C1 is disposed above the second joint C2 in the vehicle up-down direction Z. Further, the leg 130 can absorb the load transmitted to the wheel house 120, and the two joint portions (the first joint portion C1 and the second joint portion C2) can be separated, so that the joint strength can be further improved, and the rigidity of the wheel house 120 can be improved.
Referring to fig. 3, in the present embodiment, a notch 122c is formed in a lower end portion of the ridge 122 of the wheel house 120 (i.e., a lower end portion of a second ridge portion 122b described later). The notch 122C is located above the rear side frame 112 in the vehicle vertical direction Z, the first joint C1 is disposed above the notch 122C in the vehicle vertical direction Z, and the second joint C2 is disposed at the notch 122C. By providing the notch 122C, the joining can be performed by dividing into two joining portions (the first joining portion C1 and the second joining portion C2), and the joining strength can be improved.
Referring back to fig. 1, in the present embodiment, the ridge 122 includes a first ridge portion 122a and a second ridge portion 122b. The first ridge portion 122a extends linearly from the damper support portion 200 downward in the vehicle up-down direction Z and rearward in the vehicle front-rear direction X. The second ridge portion 122b extends downward in the vehicle vertical direction Z from the end portion of the first ridge portion 122a with respect to the damper support portion 200. The extension 132 engages the second ridge 122b. In this way, the load introduced from the damper support portion 200 can be reliably transmitted to the leg 130 along the first ridge portion 122a and the second ridge portion 122b, so that the load received by the wheel house 120 can be dispersed, and deformation of the wheel house 120 can be suppressed.
In the present embodiment, the inner side wall 124 of the wheel house 120 on the inner side in the vehicle width direction Y includes a convex strip 124a, and the convex strip 124a extends along the first ridge line portion 122a on the end side near the first ridge line portion 122 a. The rear side wall 126 of the wheel house 120 on the rear side in the vehicle front-rear direction X includes a planar portion 126a, and the planar portion 126a is formed to extend from the damper support portion 200 along the extending direction of the first ridge line portion 122 a. Therefore, the rigidity of the wheel house 120 can be improved, and deformation of the wheel house 120 can be suppressed.
Referring to fig. 2 and 3, further, in the present embodiment, the leg 130 further includes a body portion 134 and a flange portion 136. The main body 134 extends outward in the vehicle width direction Y. The flange 136 extends in the vehicle width direction Y along the vehicle longitudinal direction X with respect to the inner end of the body 134, and specifically, the flange 136 extends along the outer side surface of the rear side frame 112 in the vehicle width direction Y. The main body 134 and the flange 136 are connected by a connecting portion 138, and the extension portion 132 extends upward in the vehicle vertical direction Z from the connecting portion 138. That is, the coupling portion 138 is provided so as to extend in the load-transmitting direction, and the coupling portion 138 connects the body portion 134 and the flange portion 136. Therefore, the leg 130 can reliably receive the load, and can transmit the load to the rear side frame 112 to disperse the load, thereby suppressing deformation of the wheel house 120.
Further, in the present embodiment, the rear side frame 112 includes a sub frame fastening portion 112a that fastens the sub frame 300 to the lower surface of the rear side frame 112, and the leg 130 further includes a third engaging portion C3 (see fig. 3) that engages with the sub frame fastening portion 112 a. The third joint C3 is disposed below the extension 132 in the vehicle up-down direction Z. As a result, the leg 130 is engaged with the subframe fastening portion 112a, and the load transmitted from the wheel house 120 to the leg 130 can be transmitted to the subframe 300 to further share the load, thereby improving the overall rigidity.
Referring to fig. 1 and 2, in the present embodiment, the vehicle rear structure 100 further includes a planar panel portion 140. The flat panel portion 140 is disposed rearward of the wheel house 120 in the vehicle longitudinal direction X and outward of the rear side frame 112 in the vehicle width direction Y. Specifically, the flat panel portion 140 is a flat surface extending from the rear side frame 112 in the vehicle width direction Y, and the flat panel portion 140 and the rear side frame 112 substantially surround the wheel house 120. The leg 130 is sandwiched and engaged with the wheel house 120 by the flat panel portion 140 below the flat portion 126a in the vehicle up-down direction Z (see fig. 2). In this way, the wheel house 120 can be more firmly joined to the vehicle body (the rear side frame 112, the flat panel portion 140, etc.), and the rigidity of the entire body can be improved to suppress deformation.
As described above, the vehicle rear structure according to the present invention includes the leg extending outward in the vehicle width direction from the rear side frame, and the leg includes the extending portion protruding upward from the rear side frame. In this way, the leg can directly carry the load conducted to the wheel house, and the incoming load can be shared by the rear side frame and the leg at the same time. Further, the overall rigidity of the wheel house is improved, and deformation is less likely to occur. The leg includes a body portion, a flange portion, and a connecting portion, so that the load introduced can be more evenly distributed to the rear side frame and the leg. Accordingly, the vehicle rear structure of the invention has high rigidity to ensure vehicle body safety.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1.A vehicle rear structure, characterized by comprising:
a rear floor panel including a rear side frame extending in a vehicle front-rear direction;
A wheel house disposed above the rear side frame in the vehicle vertical direction; and
A leg extending outward in the vehicle width direction from the rear side frame, the leg being configured as a part of the wheel house, wherein
The leg includes an extension portion that extends upward in the vehicle up-down direction so as to protrude from the rear side frame.
2. The vehicle rear structure according to claim 1, characterized in that,
The wheel house includes a ridge extending downward in the vehicle up-down direction from the damper support portion,
The extension of the leg is engaged with the ridge.
3. The vehicle rear structure according to claim 2, characterized in that,
The extension portion includes a first engagement portion and a second engagement portion,
The first engaging portion engages with the wheel house, the second engaging portion engages with the rear side frame, and
The first engagement portion is disposed above the second engagement portion in the vehicle up-down direction.
4. The vehicle rear structure according to claim 3, characterized in that,
A notch is formed at a lower end portion of the ridge of the wheel house, the notch being located above the rear side frame in the vehicle up-down direction,
The first engaging portion is disposed above the cutout in the vehicle up-down direction,
The second joint part is configured at the notch.
5. The vehicle rear structure according to claim 2, characterized in that,
The ridge line comprises a first ridge line part and a second ridge line part,
The first ridge portion extends linearly from the damper support portion downward in the vehicle vertical direction and rearward in the vehicle front-rear direction,
The second ridge portion extends downward in the vehicle vertical direction from the first ridge portion.
6. The vehicle rear structure according to claim 2, characterized in that,
The leg further includes a body portion and a flange portion,
The body portion extends outward in the vehicle width direction,
The flange portion extends in the vehicle front-rear direction with respect to an inner side end portion of the body portion in the vehicle width direction,
The body part and the flange part are connected through a connecting part,
The extending portion extends upward in the vehicle vertical direction from the connecting portion.
7. The vehicle rear structure according to claim 2, characterized in that,
The rear side frame includes a sub frame fastening portion for fastening a sub frame to a lower surface of the rear side frame,
The leg further includes a third engagement portion engaged with the subframe securing portion,
The third engagement portion is disposed below the extension portion in the vehicle up-down direction.
8. The vehicle rear structure according to claim 5, characterized in that,
An inner side wall of the wheel house on an inner side in the vehicle width direction includes a protruding strip extending along the first ridge line portion.
9. The vehicle rear structure according to claim 5, characterized in that,
The rear side wall of the wheel house on the rear side in the vehicle front-rear direction includes a planar portion formed to extend from the absorber support portion along the extending direction of the first ridge line portion.
10. The vehicle rear structure according to claim 9, characterized by further comprising:
a flat panel portion disposed rearward of the wheel house in the vehicle longitudinal direction and outward of the rear side frame in the vehicle width direction,
The leg is engaged with the wheel house by being sandwiched by the flat panel portion below the flat panel portion in the vehicle up-down direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211598413.5A CN118182641A (en) | 2022-12-14 | 2022-12-14 | Vehicle rear structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211598413.5A CN118182641A (en) | 2022-12-14 | 2022-12-14 | Vehicle rear structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118182641A true CN118182641A (en) | 2024-06-14 |
Family
ID=91412640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211598413.5A Pending CN118182641A (en) | 2022-12-14 | 2022-12-14 | Vehicle rear structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118182641A (en) |
-
2022
- 2022-12-14 CN CN202211598413.5A patent/CN118182641A/en active Pending
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination |