CN113022276B - Automobile back door hinge reinforcing plate - Google Patents
Automobile back door hinge reinforcing plate Download PDFInfo
- Publication number
- CN113022276B CN113022276B CN202110258237.XA CN202110258237A CN113022276B CN 113022276 B CN113022276 B CN 113022276B CN 202110258237 A CN202110258237 A CN 202110258237A CN 113022276 B CN113022276 B CN 113022276B
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- Prior art keywords
- reinforcing plate
- welding
- back door
- door hinge
- plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J5/00—Doors
- B60J5/10—Doors arranged at the vehicle rear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D5/00—Construction of single parts, e.g. the parts for attachment
- E05D5/02—Parts for attachment, e.g. flaps
- E05D5/0207—Parts for attachment, e.g. flaps for attachment to vehicles
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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 discloses an automobile back door hinge reinforcing plate which comprises a reinforcing plate body, wherein the reinforcing plate body is in a box shape, a first welding edge, a second welding edge and a third welding edge are respectively arranged in three directions of the edge of the reinforcing plate body, one end of the reinforcing plate body is provided with a connecting part, the connecting part is in a structure like a Chinese character ji, and two ends of the connecting part are respectively provided with a fourth welding edge. Compared with the traditional back door hinge reinforcing plate, the back door hinge reinforcing plate has the advantages that the number of the fixing points is greatly increased, the installation strength of the back door hinge reinforcing plate is effectively improved, and the torsional rigidity and the shock resistance of the back door hinge reinforcing plate are improved.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to an automobile back door hinge reinforcing plate.
Background
The automobile industry in China is developed at a high speed, and the requirements of people on the performance and the function of the automobile are increasingly high. The back door of the automobile is installed on the D column of the automobile through a hinge. Present car D post includes D post inner panel, is provided with D post reinforcing plate on the D post inner panel, and D post reinforcing plate is used for consolidating D post inner panel. And a back door hinge reinforcing plate is arranged on the D column inner plate and used for installing a hinge connected with a back door, and the back door hinge reinforcing plate is positioned between the D column inner plate and the D column reinforcing plate. Since the hinges are directly mounted on the back door hinge reinforcing plates, the gravity of the back door and the impact force of the back door when the back door is opened or closed are directly transmitted to the back door hinge reinforcing plates through the hinges, and therefore the back door hinge reinforcing plates are required to bear larger impact force and torsion force.
The invention discloses a conventional back door reinforcing plate structure, which is named as a tail door hinge reinforcing plate as disclosed in the invention patent with the publication number of CN 101476421A. This tail-gate hinge mounting panel is through setting up three welding limit welded fastening around it on D post inner panel, and the structure and the mounting means of this kind of tail-gate hinge reinforcing plate can't bear great torsion and impact force, and torsional rigidity and shock resistance are relatively poor.
Disclosure of Invention
The invention aims to solve the problems that the conventional back door hinge reinforcing plate cannot bear larger torsion and impact force and has poorer torsional rigidity and impact resistance, and provides an automobile back door hinge reinforcing plate which can effectively solve the problems.
The purpose of the invention is realized by the following technical scheme: the utility model provides a car back hinge reinforcing plate, includes the reinforcing plate body, and the reinforcing plate body is the box body form, is provided with first welded edge, second welded edge and third welded edge on the three direction at reinforcing plate body edge respectively, and wherein one end of reinforcing plate body is provided with connecting portion, and connecting portion are "nearly" font structure, and the both ends of connecting portion set up fourth welded edge respectively.
When the back door hinge reinforcing plate is installed, the first welding edge, the second welding edge and the third welding edge are welded to corresponding positions on the D column inner plate, so that the reinforcing plate body is welded and fixed on the D column inner plate, one surface, close to the D column inner plate, of the connecting portion is also welded on the D column inner plate, then the fourth welding edges at two ends of the connecting portion are welded on the D column reinforcing plate, four fixing points are formed between the back door hinge reinforcing plate and the D column inner plate, and two fixing points are formed between the back door hinge reinforcing plate and the D column reinforcing plate. Because the reinforcing plate body is box body column structure for form a cavity region between reinforcing plate body and the D post inner panel, because connecting portion are "nearly" font structure, "nearly" font structure can form a buffer zone, cavity region and buffer zone can effectively improve the shock resistance of back door hinge reinforcing plate, and regional quiet, dynamic rigidity has obtained effectual promotion.
Preferably, the connecting part and the reinforcing plate body are of an integrated structure. Connecting portion and reinforcing plate body are same steel sheet, and the reinforcing plate body passes through stamping process and forms box body column structure, and the connecting portion body then becomes "nearly" font structure through the crib crimper bending type.
Preferably, the reinforcing plate body is provided with a mounting hole. The mounting hole arranged on the reinforcing plate body is used for mounting the hinge.
Preferably, the first welding edge and the second welding edge are respectively positioned at two sides of the reinforcing plate body, the first welding edge and the second welding edge are respectively connected with a hot bending plate, one end of the hot bending plate is fixedly connected with the first welding edge or the second welding edge, and the other end of the hot bending plate is connected with a welding block; the thermal bending plate consists of an upper metal layer and a lower metal layer which have different thermal expansion coefficients, and the thermal expansion coefficient of the upper metal layer is greater than that of the lower metal layer; the thermal bending plate is wrapped with a thermal insulation sleeve. The back door hinge reinforcing plate welds the welding piece of this body both sides of reinforcing plate to the D post inner panel before the welding, has realized like this that the back door hinge reinforcing plate takes place the skew and lead to welding failure at the back door hinge reinforcing plate in follow-up welding process. In actual welding process, because can't accomplish both sides and weld simultaneously, all weld the welding limit of this one side of reinforcing plate body earlier usually, weld the another side after the welding is accomplished again, because welding temperature is higher, this meeting of welding plate takes place thermal deformation, leads to one of them side welding to accomplish the back, because the thermal deformation of reinforcing plate body, the welding of opposite side becomes can take place to stick up the condition on limit, leads to the opposite side to be difficult to continue the welding. According to the invention, when the welding block is welded, the welding block can reach a higher temperature during welding, the temperature of the welding block can be transmitted to the thermal deformation plate, the thermal bending plate is composed of an upper metal layer and a lower metal layer with different thermal expansion coefficients, and the expansion coefficient of the upper metal layer is greater than that of the lower metal layer, so that when the temperature of the thermal deformation plate rises, the expansion distance of the upper metal layer in the length direction is greater than that of the lower metal layer, one end of the thermal bending plate close to the first welding edge or the second welding edge can be bent downwards, and a downward pressure is formed on the first welding edge and the second welding edge, so that the welding edges on two sides are inhibited from deforming and tilting, the welding edges can be firmly pressed on the D column inner plate, and the welding edges can be conveniently welded. The thermal insulation cover of parcel outside hot bent plate can play the heat preservation effect to hot bent plate for hot bent plate can keep a period under high temperature state, reduces the cooling rate of hot bent plate, makes hot bent plate can keep the bending state for a long time, thereby makes hot bent plate can weld the limit and implement the holding down force for a long time, makes the operator can have the plenty of time and welds each welding limit.
Preferably, the welding block is provided with a slot, one end of the thermal bending plate is inserted into the slot, and a slow heat conduction layer is arranged between the welding block and the thermal bending plate. The slow heat conduction layer is made of a material with a slower heat conduction speed. Because the welding piece welds the back on the D post inner panel, the cooling solidification of solder joint needs certain time, welds the effective fixed of the back welding piece that cools off solidification and just can realize with D post inner panel. Through being provided with slow heat-conducting layer between welding piece and hot crooked board, reduce the heat conduction speed between welding piece and the hot crooked board to delay the time that the hot crooked board takes place to crooked, make the welding piece after the welding, the welding point obtains just taking place to buckle by the hot crooked board after the cooling solidification, thereby has avoided causing the influence because of the crooked welding of hot crooked board to the welding of welding piece.
Preferably, the insulating sleeve is made of asbestos. The asbestos has high temperature resistance and good heat preservation performance.
Preferably, the upper metal layer is made of copper and the lower metal layer is made of iron. The coefficient of thermal expansion of copper is far greater than iron, and like this, when the temperature rose, the expanding distance of top metal level length direction was greater than the expanding distance of below metal level length direction to the one end that makes the hot bending plate be close to first welding limit or second welding limit can the downwarping, forms the holding down force to first welding limit and second welding limit.
The invention has the beneficial effects that: compared with the traditional back door hinge reinforcing plate, the back door hinge reinforcing plate has the advantages that the number of the fixing points is greatly increased, the installation strength of the back door hinge reinforcing plate is effectively improved, and the torsional rigidity and the shock resistance of the back door hinge reinforcing plate are improved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a sectional view of the auxiliary positioning mechanism.
FIG. 3 is a schematic view of the present invention when installed on the inner panel of the D-pillar.
FIG. 4 is a schematic view of the present invention installed between the D-pillar inner panel and the D-pillar reinforcement panel.
In the figure: 1. reinforcing plate body, 2, first welding limit, 3, second welding limit, 4, third welding limit, 5, mounting hole, 6, connecting portion, 7, fourth welding limit, 8, hot bending plate, 9, welding piece, 10, insulation cover, 11, first metal layer, 12, second metal layer, 13, slow heat-conducting layer, 14, D post inner panel, 15, D post reinforcing plate.
Detailed Description
The invention is further described by the following detailed description in conjunction with the accompanying drawings.
Example 1:
as shown in fig. 1 to 4, an automobile back door hinge reinforcing plate comprises a reinforcing plate body 1, wherein the reinforcing plate body 1 is box-shaped. The reinforcing plate body 1 is provided with a mounting hole 5, and the mounting hole 5 is used for mounting a hinge. Be provided with first welding limit 2, second welding limit 3 and third welding limit 4 on the three direction at reinforcing plate body 1 edge respectively, first welding limit 2 and second welding limit 3 are located the both sides of reinforcing plate body 1 respectively. One end of the reinforcing plate body 1 is provided with a connecting part 6, and the connecting part 6 is of a structure shaped like a Chinese character 'ji'. The two ends of the connecting part 6 are respectively provided with a fourth welding edge 7. The connecting part 6 and the reinforcing plate body 1 are of an integrated structure. Connecting portion 6 and reinforcing plate body 1 are same steel sheet, and the reinforcing plate body forms box body column structure through stamping process, and the connecting portion body is then bent through the crib crimper and is formed "nearly" font structure.
When the back door hinge reinforcing plate is installed, the first welding edge 2, the second welding edge 3 and the third welding edge 4 are welded to corresponding positions on the D column inner plate 14, so that the reinforcing plate body 1 is welded and fixed on the D column inner plate 14, one surface, close to the D column inner plate 14, of the connecting portion 6 is also welded on the D column inner plate 14, and then the fourth welding edges 7 at two ends of the connecting portion 6 are welded on the D column reinforcing plate 15, so that the back door hinge reinforcing plate and the D column inner plate 14 form four fixing points and form two fixing points with the D column reinforcing plate. Because the reinforcing plate body is box body column structure for form a cavity region between reinforcing plate body and the D post inner panel, because connecting portion are "nearly" font structure, "nearly" font structure can form a buffer region, cavity region and buffer region can effectively improve the shock resistance of back hinge reinforcing plate, and regional quiet, dynamic rigidity has obtained effectual promotion.
And the first welding edge 2 and the second welding edge 3 are respectively provided with an auxiliary positioning device. The auxiliary positioning mechanism comprises a hot bending plate 8, one end of the hot bending plate 8 is fixedly connected with the first welding plate 2 or the second welding plate 3 respectively, and the other end of the hot bending plate 8 is connected with a welding block 9. The thermal bending plate 8 is composed of an upper metal layer and a lower metal layer with different thermal expansion coefficients, the upper metal layer is a first metal layer 11, the lower metal layer is a second metal layer 12, and the thermal expansion coefficient of the first metal layer 11 is larger than that of the second metal layer 12. The material of the first metal layer 11 is copper, and the material of the second metal layer 12 is iron. The thermal bending plate 8 is wrapped by a thermal insulation sleeve 10. The insulating sheath 10 is made of asbestos. The welding block 9 is provided with a slot, one end of the thermal bending plate 8 is inserted into the slot, and a slow heat conduction layer 13 is arranged between the welding block 9 and the thermal bending plate 8. The slow heat conduction layer 13 is made of a material with a relatively slow heat conduction speed, and a suitable material can be selected according to actual needs.
The back door hinge reinforcing plate welds the welding piece of this body both sides of reinforcing plate to the D post inner panel before the welding, has realized like this that the back door hinge reinforcing plate takes place the skew and lead to welding failure at the back door hinge reinforcing plate in follow-up welding process. In actual welding process, because can't accomplish both sides and weld simultaneously, all weld the welding limit of this one side of reinforcing plate body earlier usually, weld the another side after the welding is accomplished again, because welding temperature is higher, this meeting of welding plate takes place thermal deformation, leads to one of them side welding to accomplish the back, because the thermal deformation of reinforcing plate body, the welding of opposite side becomes can take place to stick up the condition on limit, leads to the opposite side to be difficult to continue the welding. According to the invention, when the welding block is welded, the welding block can reach a higher temperature during welding, the temperature of the welding block can be transmitted to the thermal deformation plate, the thermal bending plate is composed of an upper metal layer and a lower metal layer with different thermal expansion coefficients, and the expansion coefficient of the upper metal layer is greater than that of the lower metal layer, so that when the temperature of the thermal deformation plate rises, the expansion distance of the upper metal layer in the length direction is greater than that of the lower metal layer, one end of the thermal bending plate close to the first welding edge or the second welding edge can be bent downwards, and a downward pressure is formed on the first welding edge and the second welding edge, so that the welding edges on two sides are inhibited from deforming and tilting, the welding edges can be firmly pressed on the D column inner plate, and the welding edges can be conveniently welded. The thermal insulation sleeve wrapped outside the thermal bending plate can play a thermal insulation role on the thermal bending plate, so that the thermal bending plate can be kept for a period of time under a high-temperature state, the cooling speed of the thermal bending plate is reduced, the thermal bending plate can be kept in a bending state for a long time, the thermal bending plate can be used for welding edges to implement long-time down pressure, and an operator can weld each welding edge for a sufficient time. The slow heat conduction layer is made of a material with a slower heat conduction speed. Because the welding piece welds the back on the D post inner panel, the cooling solidification of solder joint needs certain time, welds the effective fixed of the back welding piece that cools off solidification and just can realize with D post inner panel. Through being provided with slow heat-conducting layer between welding piece and hot crooked board, reduce the heat conduction speed between welding piece and the hot crooked board to delay the time that the hot crooked board takes place to crooked, make the welding piece after the welding, the welding point obtains just taking place to buckle by the hot crooked board after the cooling solidification, thereby has avoided causing the influence because of the crooked welding of hot crooked board to the welding of welding piece.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (6)
1. The utility model provides a car back door hinge reinforcing plate, includes the reinforcing plate body, its characterized in that: the reinforcing plate body is in a box shape, a first welding edge, a second welding edge and a third welding edge are arranged in three directions of the edge of the reinforcing plate body respectively, a connecting part is arranged at one end of the reinforcing plate body, the connecting part is in a structure like a Chinese character ji, and fourth welding edges are arranged at two ends of the connecting part respectively; when the back door hinge reinforcing plate is installed, a first welding edge, a second welding edge and a third welding edge are welded to corresponding positions on the D column inner plate, so that the reinforcing plate body is welded and fixed on the D column inner plate, one surface, close to the D column inner plate, of the connecting part is also welded on the D column inner plate, then fourth welding edges at two ends of the connecting part are welded on the D column reinforcing plate, and therefore the back door hinge reinforcing plate and the D column inner plate form four fixing points and form two fixing points with the D column reinforcing plate; the first welding edge and the second welding edge are respectively positioned at two sides of the reinforcing plate body, the first welding edge and the second welding edge are respectively connected with a hot bending plate, one end of the hot bending plate is fixedly connected with the first welding edge or the second welding edge, and the other end of the hot bending plate is connected with a welding block; the thermal bending plate consists of an upper metal layer and a lower metal layer which have different thermal expansion coefficients, and the thermal expansion coefficient of the upper metal layer is greater than that of the lower metal layer; the thermal bending plate is wrapped with a thermal insulation sleeve.
2. The automobile back door hinge reinforcing plate as claimed in claim 1, wherein the connecting portion and the reinforcing plate body are of an integral structure.
3. The automobile back door hinge reinforcing plate as claimed in claim 1, wherein the reinforcing plate body is provided with mounting holes.
4. The automobile back door hinge reinforcing plate as claimed in claim 1, wherein the welding block is provided with a slot, one end of the heat bending plate is inserted into the slot, and a slow heat conducting layer is arranged between the welding block and the heat bending plate.
5. The automobile back door hinge reinforcing plate as claimed in claim 1, wherein the insulation cover is made of asbestos.
6. The automobile back door hinge reinforcing plate as claimed in claim 1, wherein the upper metal layer is made of copper and the lower metal layer is made of iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110258237.XA CN113022276B (en) | 2021-03-09 | 2021-03-09 | Automobile back door hinge reinforcing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110258237.XA CN113022276B (en) | 2021-03-09 | 2021-03-09 | Automobile back door hinge reinforcing plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113022276A CN113022276A (en) | 2021-06-25 |
| CN113022276B true CN113022276B (en) | 2022-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110258237.XA Active CN113022276B (en) | 2021-03-09 | 2021-03-09 | Automobile back door hinge reinforcing plate |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204645919U (en) * | 2015-06-01 | 2015-09-16 | 安徽江淮汽车股份有限公司 | A kind of hatchback tail-door hinge mounting structure |
| JP6322181B2 (en) * | 2015-12-16 | 2018-05-09 | 本田技研工業株式会社 | Tailgate structure |
| CN209426540U (en) * | 2018-10-25 | 2019-09-24 | 上海思致汽车工程技术有限公司 | A kind of automobile back door hinge reinforcer |
| CN209366281U (en) * | 2018-12-14 | 2019-09-10 | 广州汽车集团股份有限公司 | Body upright post reinforcement structure and automobile |
| CN209921015U (en) * | 2019-02-26 | 2020-01-10 | 奇瑞汽车股份有限公司 | Automobile back door hinge mounting structure |
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2021
- 2021-03-09 CN CN202110258237.XA patent/CN113022276B/en active Active
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| CN113022276A (en) | 2021-06-25 |
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Address after: 310051 1st and 6th floors, no.451 Internet of things street, Binjiang District, Hangzhou City, Zhejiang Province Applicant after: Zhejiang Zero run Technology Co.,Ltd. Address before: 310051 1st and 6th floors, no.451 Internet of things street, Binjiang District, Hangzhou City, Zhejiang Province Applicant before: ZHEJIANG LEAPMOTOR TECHNOLOGY Co.,Ltd. |
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