CN216034681U - Automobile back door structure - Google Patents
Automobile back door structure Download PDFInfo
- Publication number
- CN216034681U CN216034681U CN202121715272.1U CN202121715272U CN216034681U CN 216034681 U CN216034681 U CN 216034681U CN 202121715272 U CN202121715272 U CN 202121715272U CN 216034681 U CN216034681 U CN 216034681U
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- Prior art keywords
- back door
- plate
- window frame
- reinforcing plate
- frame
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 45
- 238000003466 welding Methods 0.000 claims description 19
- 239000003292 glue Substances 0.000 claims description 5
- 238000002955 isolation Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 2
- 238000000576 coating method Methods 0.000 claims 2
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000010073 coating (rubber) Methods 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
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Abstract
The utility model aims to provide a back door structure which meets performance requirements and light weight requirements, and comprises a back door inner plate and a back door outer plate, wherein the back door inner plate comprises a main frame and a window frame in the lower area of the main frame, the window frame is of a V-shaped beam structure integrally, an angle part is welded with the lower frame edge of the main frame, V-shaped wing ends on two sides are respectively welded with the middle positions of the frame edges on two sides of the main frame, a window frame reinforcing plate is further arranged in the middle area of the main frame, and the plate surfaces on two sides of the window frame reinforcing plate are respectively and fixedly connected with the back door inner plate and the back door outer plate. In the scheme, the back door inner plate is connected with the back door inner plate main frame through the V-shaped beam structure, so that the force transmission path is ensured, the performance requirement of the back door assembly can be ensured, the light weight purpose of the back door inner plate is also achieved, the window frame reinforcing plate is connected with the window frame, and the rigidity modal performance requirement of the back door is better ensured.
Description
Technical Field
The utility model relates to the technical field of automobile body structures, in particular to a back door structure.
Background
The back door is one of the opening and closing members of the automobile, and the structural strength of the back door directly influences the safety performance of the automobile. The wiper motor needs to be installed on the lower window frame of the back door, and the requirement on rigidity modal performance is high. In the prior art, the back door is mainly formed by welding a back door inner plate and a back door outer plate, a lower window frame of the back door is integrally formed with the back door inner plate in a punching way, and the back door outer plate is deeper towards the integral depth in the X direction, so that the back door inner plate is easy to crack when adopting an integral structure; the lower position of the lower window frame is provided with lightening holes for lightening, so that the requirements of supporting strength and rigidity mode are difficult to meet, and the lower window frame is easy to crack due to insufficient strength in the using process, thereby causing troubles and economic loss for users and greatly influencing the safety performance of automobiles.
The chinese application document entitled "a rear back door of an automobile" (application number: 201911155476.1) discloses the following technical solutions: the automobile back door is composed of a back door inner plate, a back door outer plate and lower window frame reinforcing plates positioned between the inner plate and the outer plate, the back door inner plate is composed of a back door inner plate sub-assembly at the lower part, an upper window frame at the upper part, side window frames at two sides of the upper part and lower window frame connecting plates at two sides, and an imaginary position corresponding to the position of the lower window frame is formed between the lower window frame connecting plates at the two sides; the back door outer plate is provided with an upper window frame, a side window frame and a lower window frame, the lower window frame reinforcing plate is provided with a wiper motor mounting hole, the lower window frame reinforcing plate corresponds to the virtual position of the back door inner plate, and two ends of the lower window frame reinforcing plate are respectively welded and fixed with the lower window frame connecting plates on two sides, so that the lower window frame reinforcing plate forms a lower window frame of the back door inner plate; the back door sub-assembly is provided with a plurality of supporting beams at the lower position of the lower window frame reinforcing plate, and the top ends of the supporting beams are welded and fixed with the lower window frame reinforcing plate; the top end of the lower window frame reinforcing plate is welded and fixed with the top end of the lower window frame of the back door outer plate. Among the above-mentioned scheme, the back door inner panel comprises back door inner panel sub-assembly, last window frame, side window frame and lower window frame connecting plate, and the structure is more complicated, and weight is heavier, is unfavorable for the lightweight requirement.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a back door structure which meets performance requirements and light weight requirements.
In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides an automobile back door structure, includes back door inner panel and back door outer panel, back door inner panel includes the window frame in main frame and the main frame lower part region, the whole V-beam structure that is of window frame, the lower frame limit welding of angular form portion and main frame, both sides V-arrangement wing end respectively with main frame both sides frame limit middle part department welding, still be provided with the window frame reinforcing plate in the middle part region of main frame, the both sides face of window frame reinforcing plate respectively with back door inner panel, back door outer panel fixed connection.
In the scheme, the back door inner plate is connected with the back door inner plate main frame through the V-shaped beam structure, so that the force transmission path is ensured, the performance requirement of the back door assembly can be ensured, the light weight purpose of the back door inner plate is also achieved, the window frame reinforcing plate is connected with the window frame, and the rigidity modal performance requirement of the back door is better ensured.
Drawings
FIG. 1 is a structural view of a back door inner panel;
FIG. 2 is a view illustrating a structure of a reinforcing plate for a window frame;
FIG. 3 is a schematic view of the connection of the window frame stiffener to the inner panel of the back door;
FIG. 4 is a schematic view showing the connection of the back door inner panel, the window frame reinforcing panel and the back door outer panel.
Detailed Description
As shown in fig. 1 to 4, an automobile back door structure includes a back door inner plate 10 and a back door outer plate 20, the back door inner plate 10 includes a main frame 11 and a window frame 12 in a lower region of the main frame 11, the window frame 12 is integrally formed in a V-shaped beam structure, an angle portion is welded to a lower frame edge of the main frame 11, V-shaped wing ends on two sides are respectively welded to middle positions of two side frame edges of the main frame 11, a window frame reinforcing plate 30 is further disposed in the middle region of the main frame 11, and two side plate surfaces of the window frame reinforcing plate 30 are respectively fixedly connected to the back door inner plate 10 and the back door outer plate 20. The back door inner plate 10 is connected with the back door inner plate dense main frame 11 through the window frame 12 of the V-shaped beam structure, a force transmission path is guaranteed, the performance requirement of a back door assembly can be guaranteed, the purpose of light weight of the back door inner plate 10 is achieved, the window frame reinforcing plate 30 is connected with the window frame 12, and therefore the rigidity modal performance requirement of the back door is better guaranteed.
Preferably, the window frame reinforcing plate 30 is a strip plate whose length direction is the same as the vehicle width direction, and includes a reinforcing plate main body 31, a first welding plate 32 is disposed on the oblique edge of the V-shaped wing end of the reinforcing plate main body 31, the first welding plate 32 is welded and fixed with the outer plate surface of the V-shaped beam on both sides of the window frame 12, a second welding plate 121 is also correspondingly disposed on the V-shaped beam on both sides of the window frame 12, and a first welding point c is disposed on the second welding plate 121. The window frame reinforcing plate 30 is connected with the left corner of the back door inner plate 10 through the left corner welding point of the back door inner plate 10 and the right corner of the back door inner plate 10 through the right corner welding point of the back door inner plate 10, and the window frame reinforcing plate 30 is connected with the window frame 12, so that the rigidity modal performance requirement of the back door assembly is better guaranteed.
The upper plate edge of reinforcing plate main part 31 is provided with a plurality of second solder joints a along its length direction, and the lower plate edge of reinforcing plate main part 31 is provided with a plurality of rubber coating grooves 33 along its length direction interval, sets up the vibration isolation in the rubber coating groove 33 and glues fixedly with back outer door panel 20. The connection between window frame reinforcing plate 30 and back door outer panel 20 is mainly through a plurality of second solder joints a welded fastening's assurance joint strength, still in addition through the vibration isolation glue that sets up in the rubber coating groove 33 and back door outer panel 20 sticky fixed, further strengthens joint strength between the two on the one hand, and on the other hand can also vibration/noise reduction, promotes and drives experience, has further promoted the rigidity modal performance of back door assembly.
The surface of the reinforcing plate main body 31 is provided with a wiper motor mounting hole 34, the position of the reinforcing plate main body 31 close to the first welding plate 32 is further provided with two positioning holes 36 matched with the fixture, and the two positioning holes 36 are arranged along the center of the reinforcing plate main body 31 in a symmetrical mode. The window frame reinforcing plate 30 is connected with the back door inner plate 10 by matching the special fixture with the positioning hole 36, so that the requirement of welding precision is better ensured.
The wiper motor mounting holes 34 are provided with 3 in the middle of the reinforcing plate main body 31, and are arranged in an inverted isosceles triangle shape, so that the connection strength is ensured.
In order to meet the requirement of light weight, on the premise of ensuring the overall strength, the plate surface of the reinforcing plate main body 31 is provided with lightening holes 35.
The peripheries of the back door inner plate 10 and the back door outer plate 20 are connected through edge covering, so that the overall rigidity modal performance of the back door assembly is further improved, the performance target requirement is met, and the sealing surface b is annularly arranged on the inner plate surface of the main frame 11 of the back door inner plate 10 to prevent external sundries from entering the trunk.
Claims (7)
1. The utility model provides an automobile back door structure, includes back door inner panel (10) and back door outer panel (20), and back door inner panel (10) includes main frame (11) and window frame (12) in main frame (11) lower part region, its characterized in that: the window frame (12) is integrally of a V-shaped beam structure, an angle part is welded with the lower frame edge of the main frame (11), V-shaped wing ends on two sides are respectively welded with the middle positions of the frame edges on two sides of the main frame (11), a window frame reinforcing plate (30) is further arranged in the middle area of the main frame (11), and the plate surfaces on two sides of the window frame reinforcing plate (30) are respectively and fixedly connected with the back door inner plate (10) and the back door outer plate (20).
2. The automobile back door structure according to claim 1, wherein: the window frame reinforcing plate (30) is integrally in the shape of a strip plate with the length direction consistent with the vehicle width direction and comprises a reinforcing plate main body (31), a first welding plate (32) is arranged on the oblique edge of the V-shaped wing end of the reinforcing plate main body (31), the first welding plate (32) is fixedly welded with the outer plate surface of the V-shaped beams on the two sides of the window frame (12), a second welding plate (121) is correspondingly arranged on the V-shaped beams on the two sides of the window frame (12), and a first welding point (c) is arranged on the second welding plate (121).
3. The automobile back door structure according to claim 2, wherein: a plurality of second welding points (a) are arranged at the edge of the upper plate of the reinforcing plate main body (31) along the length direction of the upper plate, a plurality of glue coating grooves (33) are arranged at intervals at the edge of the lower plate of the reinforcing plate main body (31) along the length direction of the lower plate, and vibration isolation glue is arranged in the glue coating grooves (33) and is fixedly adhered to the outer plate (20) of the back door.
4. The automobile back door structure according to claim 3, wherein: the surface of the reinforcing plate main body (31) is provided with a wiper motor mounting hole (34), the position of the reinforcing plate main body (31) close to the first welding plate (32) is further provided with positioning holes (36) matched with the clamp, and the two positioning holes (36) are arranged along the center of the reinforcing plate main body (31) in a symmetrical mode.
5. The automobile back door structure according to claim 4, wherein: the wiper motor mounting holes (34) are provided with 3 in the middle of the reinforcing plate main body (31) and are arranged in an inverted isosceles triangle shape.
6. The automobile back door structure according to claim 4, wherein: the surface of the reinforcing plate main body (31) is provided with lightening holes (35).
7. The automobile back door structure according to claim 1, wherein: the peripheries of the back door inner plate (10) and the back door outer plate (20) are connected through edge covering, and the inner plate surface of the main frame (11) of the back door inner plate (10) is annularly provided with a sealing surface (b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121715272.1U CN216034681U (en) | 2021-07-27 | 2021-07-27 | Automobile back door structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121715272.1U CN216034681U (en) | 2021-07-27 | 2021-07-27 | Automobile back door structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216034681U true CN216034681U (en) | 2022-03-15 |
Family
ID=80556426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121715272.1U Active CN216034681U (en) | 2021-07-27 | 2021-07-27 | Automobile back door structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216034681U (en) |
-
2021
- 2021-07-27 CN CN202121715272.1U patent/CN216034681U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |