CN115635829A - Door assembly and vehicle that has it - Google Patents

Abstract

The invention discloses a vehicle door assembly and a vehicle with the same, wherein the vehicle door assembly comprises: a door inner panel; the window frame, the window frame is located the upside of door inner panel, the window frame includes the window frame main part and connects at window frame main part downside and downwardly extending's connection panel section, the connection panel section has along the first connecting portion of extending around and along the second connecting portion of controlling the extension, first connecting portion with door inner panel welded connection, the second connecting portion with door inner panel welded connection. According to the vehicle door assembly, the first connecting part extending along the front and back direction and the second connecting part extending along the left and right direction are arranged on the connecting plate section, the first connecting part is connected with the vehicle door inner plate in a welding mode, the second connecting part is connected with the vehicle door inner plate in a welding mode, the integral rigidity of the welded vehicle door inner plate and the welded window frame is improved, and therefore the deformation, paint crack and corrosion resistance of the vehicle door inner plate and the window frame is improved.

Description

Door assembly and vehicle that has it

Technical Field

The invention relates to the technical field of vehicles, in particular to a vehicle door assembly and a vehicle with the same.

Background

With the increase of the income level of residents, vehicles as transportation tools have become necessary living equipment for families. At present, the structural form of the vehicle door usually has an integral type structural form and a split type structural form, and the split type vehicle door is higher in material utilization rate and better in manufacturing economy due to the fact that the split type vehicle door is manufactured, so that the split type vehicle door gradually becomes the most main structural form of the vehicle door.

The split type vehicle door mainly comprises a window frame structure and a main door body structure, the window frame structure and the main door body structure are required to be welded into a whole during manufacturing, then the vehicle door is subjected to work such as integral paint spraying, and finally the vehicle door is assembled on the vehicle body. However, when the car door is assembled on the car body, due to the fact that the size precision of the split car door sash is difficult to control, the problems of gaps and poor surfaces between the loaded car door and the car body (B/C column) easily occur, door adjusting work needs to be carried out, and the door needs to be pushed and pulled in a relatively rough manner during door adjusting, so that the welding seam area at the overlapped edge of the window frame and the inner plate is prone to generating large deformation, paint surfaces crack, and the welding area is prone to generating corrosion.

Disclosure of Invention

The present invention is based on the finding by the inventors of the present application of the following facts and problems:

the overlapping length of the window frame and the door panel of the existing split type vehicle door (front door B column/rear door C column) is short, spot welding is carried out at the overlapping position, the welding direction is Y direction, when the vehicle door is adjusted, an operator can apply Y-direction force to the vehicle door, the Y-direction force is the same as the direction of a welding spot, and due to the fact that the stripping force anti-deformation capacity of the welding spot is poor, metal plates around the welding spot are prone to yielding deformation, the window frame and the inner plate move in the Y direction, and the overlapping edge of the window frame and the inner plate is subjected to large stress. The overlapping edge of the window frame and the door panel is generally welded by arc welding, the sheet material at the overlapping edge is thinner, the total length of the arc welding is shorter, the rigidity of a welding seam area is weakest, and the arc welding generates welding beading, so that the height of the welding beading needs to be polished to be less than 0.5mm to meet the requirements of trim panel assembly and appearance, the adhesion and corrosion resistance of a paint surface at a welding oxidation area and a welding beading polishing sharp angle are poor, and paint crack and rust are easy to occur.

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the vehicle door assembly, which can improve the integral rigidity of the split vehicle door window frame, and further improve the deformation, paint crack and corrosion resistance of the vehicle door window frame.

The invention also provides a vehicle with the door assembly.

The door assembly according to the first aspect of the invention includes a door inner panel; the window frame, the window frame is located the upside of door inner panel, the window frame includes the window frame main part and connects at window frame main part downside and downwardly extending's connecting plate section, the connecting plate section has along the first connecting portion of extending around and along the second connecting portion of controlling the extension, first connecting portion with door inner panel welded connection, the second connecting portion with door inner panel welded connection.

According to the vehicle door assembly, the first connecting part extending forwards and backwards and the second connecting part extending leftwards and rightwards are arranged on the connecting plate section, the first connecting part is connected with the vehicle door inner plate in a welding mode, the second connecting part is connected with the vehicle door inner plate in a welding mode, the integral rigidity of the welded vehicle door inner plate and the welded window frame is improved, and the deformation, paint crack and corrosion resistance of the vehicle door inner plate and the welded window frame is improved.

In addition, the door assembly of the embodiment has the following additional technical characteristics:

in some embodiments of the present invention, the first connection portion and the door inner panel are connected by at least one first welding point, and when the first welding point includes a plurality of first welding points, the plurality of first welding points are arranged at intervals in an up-down direction.

In some embodiments of the invention, the second connecting portion and the door inner panel are connected by at least one second welding point, and when the second welding point includes a plurality of second welding points, the plurality of second welding points are arranged at intervals in the vertical direction.

In some embodiments of the present invention, the window frame further includes an extension plate section connected to a lower end of the connection plate section, the door assembly further includes a latch reinforcement plate disposed on the door inner panel, and the extension plate section extends downward to be in overlapping connection with the latch reinforcement plate.

In one embodiment of the present invention, the extension plate section includes a first overlapping portion extending in the front-rear direction and a second overlapping portion extending in the left-right direction, the first overlapping portion being welded to the striker reinforcement plate and the door inner panel, and the second overlapping portion being welded to the striker reinforcement plate and the door inner panel.

In some examples of the present invention, the first lap joint portion, the striker reinforcement plate, and the door inner panel are connected by at least one third weld;

the second lap joint part, the latch reinforcing plate and the vehicle door inner plate are connected through at least one fourth welding point.

In some embodiments of the present invention, a fifth welding point is provided between the connecting plate segment and the door inner plate, and a distance between the fifth welding point and an upper end edge of the door inner plate is less than 30mm.

In one embodiment of the invention, at the position of the upper end edge of the inner door panel, the gap between the inner door panel and the connecting plate section is less than or equal to 0.3mm.

In some examples of the present invention, the upper end edge of the door inner panel and the connecting plate section are connected by a laser welding bead having a length of 40mm or more.

A vehicle according to a second aspect of the invention includes a door assembly according to the first aspect of the invention.

According to the vehicle provided by the invention, by arranging the vehicle door assembly of the first aspect, the integral rigidity of the welded vehicle door inner plate and the welded window frame is improved, and the deformation, paint crack and rust resistance of the vehicle door inner plate and the window frame is further improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a schematic view of a vehicle door assembly according to an embodiment of the present invention;

FIG. 2 is an exploded view of a door assembly according to an embodiment of the present invention;

FIG. 3 is a schematic view showing a connection relationship between the door inner panel and the window frame shown in FIG. 1;

FIG. 4 is a schematic view of another angle of the relationship of the connection of the inner door panel and the window sash shown in FIG. 1;

FIG. 5 is an enlarged fragmentary view of the door inner panel and the window frame shown in FIG. 4;

FIG. 6 is another schematic view of the door inner panel and the window frame shown in FIG. 5.

Reference numerals are as follows:

10. a door assembly; 11. a door inner panel;

12. a window frame; 121. a window frame main body; 122. a connecting plate section; 1221. a first connection portion; 1222. a second connecting portion; 123. an extension plate section; 1231. a first lap joint portion; 1232. a second lap joint portion;

13. a latch reinforcement plate; 14. an outer panel of the vehicle door;

101. a first solder joint; 102. a second solder joint; 103. a third solder joint; 104. a fourth solder joint; 105. a fifth welding spot; 106. a sixth welding spot; 107. welding seams are welded through laser; 108. a clamping zone.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present invention and should not be construed as limiting the present invention.

A vehicle door assembly 10 according to an embodiment of the first aspect of the present invention will be described with reference to fig. 1 to 6.

As shown in fig. 1 to 3, a door assembly 10 according to an embodiment of the first aspect of the present invention includes: the window frame 12 includes a window frame main body 121 and a connecting plate section 122 connected to a lower side of the window frame main body 121 and extending downward, the connecting plate section 122 has a first connecting portion 1221 extending in a front-rear direction (a front-rear direction shown in fig. 1) and a second connecting portion 1222 extending in a left-right direction (a left-right direction shown in fig. 1), the first connecting portion 1221 is welded to the door inner panel 11, and the second connecting portion 1222 is welded to the door inner panel 11. That is, when the door inner panel 11 and the sash 12 are welded, the door inner panel 11 and the sash 12 are welded in both the X direction (the front-rear direction shown in fig. 1) and the Y direction (the left-right direction shown in fig. 1) of the vehicle.

In the process of adjusting the door, a person can apply a force in the Y direction to the door, so that the fit clearance surface difference between the door assembly 10 and the vehicle body can meet the requirement, at the moment, the force application direction of the welding point in the Y direction is the same as that of the person, the welding point in the Y direction is influenced by the stripping force, the deformation resistance is poor, the sheet metal around the welding point in the Y direction is easy to yield and deform, the welding point in the X direction is perpendicular to the force application direction of the person and is influenced by the shearing force, and the shearing force is about five times of the stripping force, so that the welding point in the X direction is high in deformation resistance, and the sheet metal around the welding point is not easy to yield and deform. The peeling force here may refer to a force required for one of the two plate portions overlapping in the Y direction to be separated from the other plate portion in the Y direction when receiving a force in the Y direction, and the shearing force may refer to a force required for one of the two plate portions overlapping in the X direction to be separated from the other plate portion in the X direction when receiving a force in the Y direction.

In the door assembly 10 of the present embodiment, the connecting plate section 122 is provided and the second connecting portion 1222 extending left and right is provided, and the second connecting portion 1222 is welded to the door inner panel 11, so that when the window frame 12 and the door inner panel 11 are adjusted or pushed in the Y direction, the welding position of the second connecting portion 1222 and the door inner panel 11 is subjected to a shearing force, and the shearing force is about five times of a peeling force, thereby increasing the connecting strength and the deformation resistance of the door inner panel 11 and the window frame 12, improving the overall rigidity after the welding of the door inner panel 11 and the window frame 12, and preventing the paint from cracking and rusting at the connecting position of the door inner panel 11 and the window frame 12.

According to the vehicle door assembly 10 of the embodiment of the invention, the first connecting portion 1221 extending in the front-rear direction and the second connecting portion 1222 extending in the left-right direction are arranged on the connecting plate section 122, the first connecting portion 1221 is welded with the vehicle door inner plate 11, and the second connecting portion 1222 is welded with the vehicle door inner plate 11, so that the overall rigidity of the welded vehicle door inner plate 11 and the welded window frame 12 is improved, and the deformation, paint crack and corrosion resistance of the vehicle door inner plate 11 and the window frame 12 is further improved.

In some embodiments of the present invention, as shown in fig. 3, the first connection portion 1221 and the door inner panel 11 may be connected by at least one first welding point 101, and when the first welding point 101 includes a plurality of first welding points, the plurality of first welding points 101 are arranged at intervals in the up-down direction. That is to say, the first connecting portion 1221 and the door inner panel 11 may be provided with one, two, three or more welding spots when being welded, and may be set according to actual needs. Set up at least one first solder joint 101 and weld first connecting portion 1221 and door inner panel 11, can fix window frame 12 and door inner panel 11 in the Y direction, when being provided with a plurality of first solder joints 101, can increase the joint strength of window frame 12 and door inner panel 11, and when a plurality of first solder joints 101 were arranged at the interval of upper and lower direction, then can improve the fixed stability of window frame 12 in upper and lower direction, can make window frame 12 door plant take place whole even small deformation when transferring the door, avoid arousing stress concentration in window frame 12 and door inner panel 11 overlap border department.

In some embodiments of the present invention, as shown in fig. 3 and 4, the second connecting portion 1222 and the door inner panel 11 may be connected by at least one second welding point 102, and when the second welding point 102 includes a plurality of second welding points 102, the plurality of second welding points 102 are arranged at intervals in the up-down direction. That is, the second connecting portion 1222 may be welded to the door inner panel 11 by one, two, three or more welding spots, and may be set according to actual needs. The at least one second welding point 102 is arranged to weld the second connecting portion 1222 and the door inner panel 11 together, so that the window frame 12 and the door inner panel 11 can be fixed in the X direction, and when a door is adjusted, the shearing force for connecting the window frame 12 and the door inner panel 11 can be increased, and the deformation resistance and the paint crack and rust resistance of the door inner panel 11 and the window frame 12 can be further increased. When a plurality of second welding spots 102 are arranged, the connection strength between the window frame 12 and the inner door panel 11 can be increased, and when the second welding spots 102 are arranged at intervals in the vertical direction, the fixing stability of the window frame 12 in the vertical direction can be improved, the door panel of the window frame 12 can be integrally and uniformly deformed in a small way when the door is adjusted, and stress concentration at the overlapped edge of the window frame 12 and the inner door panel 11 is avoided.

In some embodiments of the present invention, as shown in fig. 1, the door assembly 10 may further include an outer door panel 14, the window frame 12 is welded to the inner door panel 11, and then the window frame 12 and the inner door panel 11 form a welded assembly and the outer door panel 14 are subjected to a hemming process to obtain the completed door assembly 10. Therefore, the door outer panel 14 can cover the sheet metal structure covering the door inner panel 11, so that the appearance of the assembled door assembly 10 and the vehicle body is beautiful and neat.

In some embodiments of the present invention, as shown in fig. 3, the window frame 12 may further include an extension plate section 123, the extension plate section 123 is connected to a lower end of the connection plate section 122, the door assembly 10 further includes a latch reinforcement plate 13, the latch reinforcement plate 13 is disposed on the door inner panel 11, and the extension plate section 123 extends downward to be overlapped with the latch reinforcement plate 13. From this, the overlapping area is formed with the hasp reinforcing plate 13 of door to window frame 12 makes window frame 12 and hasp reinforcing plate 13 link into a whole, makes window frame 12 and door inner panel 11 can prolong to hasp reinforcing plate 13 lower limb in the overlapping area of upper and lower direction like this, makes overlap length greatly increased, thereby has further improved the overall structure intensity of window frame 12 and door, simultaneously, hasp reinforcing plate 13 also can share certain atress when transferring the door, reduces the atress of single solder joint. For example, as shown in fig. 3, the extending plate section 123 of the window frame 12 is lap-jointed with the striker reinforcement plate 13, and the effective overlapping length of the window frame 12 and the door inner panel 11 can reach about 320mm.

In one embodiment of the present invention, as shown in fig. 3, the extension plate segment 123 may include a first overlapping portion 1231 extending in the front-rear direction and a second overlapping portion 1232 extending in the left-right direction, the first overlapping portion 1231 being welded to the striker reinforcement plate 13 and the door inner panel 11, and the second overlapping portion 1232 being welded to the striker reinforcement plate 13 and the door inner panel 11. Specifically, the striker reinforcement plate 13 is welded to the first overlapping portion 1231, the first overlapping portion 1231 is welded to the door inner panel 11, the striker reinforcement plate 13 is welded to the second overlapping portion 1232, and the second overlapping portion 1232 is welded to the door inner panel 11. That is to say, the first overlapping portion 1231 and the second overlapping portion 1232 of the extension board segment 123 of the window frame 12 at the latch reinforcement board 13 form an L-shaped structure with a vertical overlapping surface in the horizontal direction, and are connected by spot welding in the X direction and the Y direction, so that the anisotropy of the structure is effectively increased, and the structural rigidity of the window frame 12 and the door inner panel 11 is improved.

In some examples of the present invention, as shown in fig. 3, the first overlapping portion 1231, the striker reinforcement plate 13, and the door inner panel 11 may be connected by at least one third weld 103. That is to say, the first connecting portion 1221 and the door inner panel 11 may be provided with one, two, three or more welding spots when being welded, and may be set according to actual needs. Set up at least one third solder joint 103 and weld first overlap portion 1231 with hasp reinforcing plate 13 and door inner panel 11, can fix window frame 12 and hasp reinforcing plate 13 and door inner panel 11 in the Y direction, make window frame 12 and door inner panel 11 overall structure intensity higher, when the accent door, can make window frame 12 door plant take place whole even micro-deformation, avoid causing stress concentration in window frame 12 and door inner panel 11 overlap border department.

In some examples of the present invention, as shown in fig. 3, the second overlapping portion 1232, the striker reinforcement plate 13, and the door inner panel 11 may be connected by at least one fourth weld 104. That is to say, the second overlapping portion 1232, the latch reinforcing plate 13 and the door inner panel 11 may be welded together by one, two, three or more welding points, and may be set according to actual needs. The fourth welding point 104 is arranged to weld the second overlapping part 1232, the latch reinforcing plate 13 and the door inner panel 11 together, so that the shearing force for connecting the window frame 12, the latch reinforcing plate 13 and the door inner panel 11 can be increased, and the deformation resistance and the paint crack and rust resistance of the door inner panel 11 and the window frame 12 can be further increased.

In some examples of the present invention, as shown in fig. 3, the fourth solder joints 104 may include a plurality of fourth solder joints 104, and the plurality of fourth solder joints 104 are spaced up and down. From this, set up a plurality of fourth solder joints 104 and arrange at the vertical direction interval, can improve window frame 12 fixed stability in vertical direction, when the accent door, can make window frame 12 door plant take place whole even small deformation, avoid arousing stress concentration in window frame 12 and door inner panel 11 overlap border department. For example, the number of the fourth solder joints 104 may be two, three, four or more.

In some embodiments of the present invention, as shown in fig. 5 and 6, a fifth welding point 105 may be provided between the connecting plate segment 122 and the door inner panel 11, and a distance between the fifth welding point 105 and an upper end edge of the door inner panel 11 is less than 30mm. From this, when welding the equipment to window frame 12 and door inner panel 11, can press from both sides tightly the overlap border of window frame 12 and inner panel with anchor clamps earlier, then weld again and form fifth solder joint 105, loosen the back when anchor clamps, door inner panel 11 receives the restraint of fifth solder joint 105 with the relative position of window frame 12, can make like this connecting plate section 122 and door inner panel 11 upper end position overlap the clearance on border can not kick-back and grow because of the inner panel, the follow-up equipment of being convenient for. For example, the distance between the fifth weld point 105 and the upper end edge of the door inner panel 11 may be set to 25mm, 20mm, 15mm, or the like.

In one embodiment of the present invention, as shown in fig. 5 and 6, a clamping area 108 may be provided at an upper end edge of the door inner panel 11 at a position overlapping the window frame 12. When the door inner panel 11 and the window frame 12 are clamped, the clamp is clamped and fixed in the clamping area 108, so that the upper end edge of the door inner panel 11 and the edge position overlapped with the window frame 12 can be conveniently clamped.

In one embodiment of the present invention, as shown in fig. 6, at the position of the upper edge of the door inner panel 11, the gap between the door inner panel 11 and the connecting plate section 122 may be 0.3mm or less. Thus, the gap is controlled to be less than 0.3mm, and a precondition is provided for the overlapping edge of the door inner panel 11 and the connecting plate section 122 of the window frame 12 to adopt a laser welding process, for example, the gap between the door and the connecting plate section 122 can be controlled to be 0.2mm, 0.1mm, and the like.

In some examples of the present invention, as shown in fig. 6, the upper edge of the door inner panel 11 and the connecting plate section 122 may be connected by a laser welding bead 107 having a length of 40mm or more. The welding connection can be carried out between the vehicle door inner plate 11 and the connecting plate section 122 by adopting a laser welding process, because filler wire laser welding with smaller heat input amount is adopted, the metal plate is not easy to burn through by the welding process, and the arbitrary design of the length of the welding line can be realized, so that the length of the welding line at the overlapped edge of the connecting plate section 122 of the vehicle door inner plate 11 and the window frame 12 can reach the maximum value, the rigidity of the window frame 12 and the vehicle door inner plate 11 at the overlapped edge is obviously improved, the problem of stress concentration caused by the original arc welding process is avoided, the deformation of the metal plate at the welding line area is obviously reduced, and the problem of paint crack during door adjustment is solved. Meanwhile, the laser welding seam 107 is fine, the boundary is smooth, the protruding height is small, grinding is not needed, and the welding oxidation area at the root of the welding seam is easy to polish and remove, so that the area of the laser welding seam 107 has good paint adhesion and corrosion resistance, and the paint crack corrosion resistance of the vehicle door assembly 10 is further enhanced. Preferably, the maximum value of the length of the weld of the overlapping edge of the gusset section 122 of the window frame 12 and the door inner panel 11 may be 70mm. For example, the length of the welding seam can be 40mm, 50mm, 60mm, 70mm and the like, and the length of the welding seam can be designed according to actual needs.

A vehicle according to an embodiment of the second aspect of the invention is described below with reference to fig. 1 to 6.

As shown in fig. 1 to 6, a vehicle according to an embodiment of the present invention includes a door assembly 10 according to an embodiment of the first aspect of the present invention. Other configurations and operations of vehicles according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

According to the vehicle of the embodiment of the invention, by arranging the door assembly 10 of the embodiment of the first aspect, the integral rigidity of the welded door inner plate 11 and the welded window frame 12 is improved, and the deformation, paint crack and rust resistance of the door inner plate 11 and the window frame 12 is further improved.

A vehicle according to one specific embodiment of the present invention is described below with reference to fig. 1 to 6.

As shown in fig. 1-6, the vehicle includes a door assembly 10, the door assembly 10 being a portion of the vehicle body, and a person may enter and exit the vehicle by opening the door assembly 10.

The door assembly 10 includes a door inner panel 11, a door outer panel 14, a window frame 12, and a striker reinforcement panel 13. The window frame 12 is provided on the upper side of the door inner panel 11, and the window frame 12 includes a window frame main body 121, a connecting plate section 122, and an extending plate section 123. The door outer panel 14 is hemmed and connected to the door inner panel 11 and the window frame 12 in the Y direction. The connection plate section 122 is connected to a lower side of the window frame body 121 and extends downward, and the connection plate section 122 has a first connection portion 1221 extending in the front-rear direction and a second connection portion 1222 extending in the left-right direction. The first connecting portion 1221 and the vehicle door inner panel 11 are welded through spot welding, the welding spot is set to be a first welding spot 101, and one first welding spot 101 is arranged and is a Y-direction welding spot; the second connecting portion 1222 is spot welded to the door inner panel 11, where the number of the second welding spots 102 is three, and the welding spots are X-direction welding spots. The latch reinforcing plate 13 is fixed on the door inner panel 11, the extension plate section 123 is connected at the lower end of the connecting plate section 122 and extends downwards to the latch reinforcing plate 13, the extension plate is in lap joint with the latch reinforcing plate 13, and the extension plate comprises a first lap joint part 1231 and a second lap joint part 1232. The first overlapping portions 1231 extend in the front-rear direction, the second overlapping portions 1232 extend in the left-right direction, and the first overlapping portions 1231 and the second overlapping portions 1232 form an L-shaped vertical overlapping surface in the horizontal direction. The first lap joint part 1231, the latch reinforcing plate 13 and the vehicle door inner plate 11 are welded through spot welding, the welding spot is set to be a third welding spot 103, and one third welding spot 103 is set to be a Y-direction welding spot; the second overlapping portion 1232, the striker reinforcement plate 13, and the door inner panel 11 are welded by spot welding, and the welding spot is set to be a fourth welding spot 104, and one fourth welding spot 104 is provided and is an X-direction welding spot. Two X-direction welding points are provided at intervals below the overlapping region of the striker reinforcement plate 13 with the second overlapping portion 1232, and are set as a sixth welding point 106. Be provided with fifth solder joint 105 between connection plate section 122 and door inner panel 11, the interval between the upper end edge of fifth solder joint 105 and door inner panel 11 sets up to 20mm, and along the position at the upper end of door inner panel 11, the clearance control between door inner panel 11 and connection plate section 122 is within 0.3mm, the upper end edge of door inner panel 11 and the welding of connection plate section 122 between through laser welding technology, the total length of weld seam is more than or equal to 40mm.

When the door assembly 10 is welded and assembled, the relative position of the window frame 12 and the door inner panel 11 is adjusted and fixed, the clamp is fixed at the position of the clamping area 108, the overlapping edge of the window frame 12 and the door inner panel 11 is clamped through the clamp, so that the gap between the door inner panel 11 and the connecting plate section 122 is kept within 0.3mm at the position of the upper end edge of the door inner panel 11, the door inner panel 11 and the connecting plate section 122 are welded and fixed in a spot welding mode at the fifth welding point 105, then the clamp is loosened, the connecting plate section 122 and the extension plate section 123 of the window frame 12 are welded and fixed with the door inner panel 11 and the latch reinforcing plate 13 in a spot welding mode at the first welding point 101, the second welding point 102, the third welding point 103, the fourth welding point 104 and the sixth welding point 106 in sequence, then the welding line is welded and fixed between the upper end edge of the door inner panel 11 and the connecting plate section 122 through a laser welding process, the length of the welding line is designed according to actual needs, so that the window frame 12 and the door inner panel 11 are welded together, and the door assembly 12 and the door inner panel 11 are finally welded and the door outer panel 14, and the door assembly is integrally formed, and the door outer panel 10 is obtained.

When the door assembly 10 is assembled on a vehicle body to perform door adjustment, an operator applies a force in the Y direction to the door assembly 10 to apply a force to the window frame 12 or the door inner panel 11 alone, and at this time, the second welding point 102, the fourth welding point 104 and the sixth welding point 106 are X-direction welding points and are subjected to a shearing force, so that the deformation resistance is stronger, meanwhile, the window frame 12 is provided with the connecting panel section 122 and the extending panel section 123, and the first overlapping part 1231 and the second overlapping part 1232 of the extending panel section 123 form an L-shaped vertical overlapping surface and have an overlapping area with the latch reinforcement panel 13, which greatly increases the connection strength between the window frame 12 and the door inner panel 11, effectively increases the structural anisotropy and improves the structural rigidity, so that the overall structural strength of the door assembly 10 is greatly increased, and the upper end edge of the door inner panel 11 is welded with the connecting panel section 122 by a laser welding process, so that the length of the weld is increased, stress concentration is avoided while improving the rigidity of the position, and the weld is reduced due to the smoothness of the weld, the weld is less in the weld, the weld is polished, the corrosion resistance of the weld is reduced, and the corrosion of the weld is reduced.

According to the door assembly 10 of the present invention, the first connecting portion 1221 extending in the front-rear direction and the second connecting portion 1222 extending in the left-right direction are provided at the connecting plate section 122, the first connecting portion 1221 is welded to the door inner panel 11, and the second connecting portion 1222 is welded to the door inner panel 11, so that the overall rigidity of the welded door inner panel 11 and the welded window frame 12 is improved, and the resistance to deformation, paint cracking and corrosion of the door inner panel 11 and the window frame 12 is further improved.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A vehicle door assembly, comprising:

a door inner panel;

the window frame, the window frame is located the upside of door inner panel, the window frame includes the window frame main part and connects window frame main part downside and downwardly extending's connecting plate section, the connecting plate section has along the first connecting portion of extending around and along the second connecting portion of controlling the extension, first connecting portion with door inner panel welded connection, the second connecting portion with door inner panel welded connection.

2. The door assembly of claim 1, wherein the first connecting portion is connected to the door inner panel by at least one first weld, and when the first weld includes a plurality of first welds, the plurality of first welds are spaced apart in a vertical direction.

3. The door assembly of claim 1, wherein the second connecting portion is connected to the door inner panel by at least one second weld, and when the second weld includes a plurality of second welds, the plurality of second welds are spaced apart in a vertical direction.

4. The door assembly of any of claims 1-3, wherein the window frame further includes an extension panel section connected to a lower end of the connector panel section, the door assembly further including a striker reinforcement panel disposed on the door inner panel, the extension panel section extending downwardly to overlap the striker reinforcement panel.

5. The door assembly of claim 4, wherein said extension panel section includes a first strap portion extending fore and aft and a second strap portion extending left and right, said first strap portion being welded to said striker reinforcement panel and said door inner panel, said second strap portion being welded to said striker reinforcement panel and said door inner panel.

6. The door assembly of claim 5, wherein said first strap portion, said striker reinforcement panel and said door inner panel are joined by at least one third weld;

the second lap joint part, the latch reinforcing plate and the vehicle door inner plate are connected through at least one fourth welding point.

7. The door assembly of any of claims 1-3, wherein a fifth weld is provided between the web segment and the door inner panel, the fifth weld being spaced less than 30mm from an upper edge of the door inner panel.

8. The door assembly of claim 7, wherein a gap between the door inner panel and the web segment is 0.3mm or less at an upper edge of the door inner panel.

9. The door assembly of claim 8, wherein the upper edge of the door inner panel is connected to the web segment by a laser weld, the laser weld having a length of 40mm or greater.

10. A vehicle comprising a door assembly as claimed in any one of claims 1 to 9.

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