A corrosion-proof vehicle door

Abstract

The application discloses a kind of anticorrosive vehicle door, it is related to vehicle body corrosion resistance technical field.The vehicle door includes vehicle door main body;Vehicle door outer plate is set on vehicle door main body, and it has the first area corresponding to rearview mirror;Vehicle door inner plate is set on vehicle door main body;Vehicle door rearview mirror installation part includes middle strengthening beam and rearview mirror reinforcing plate, rearview mirror reinforcing plate is installed on middle strengthening beam, there is gap between rearview mirror reinforcing plate and the first area, and the minimum width of the gap is configured to be carried out in the rearview mirror reinforcing plate and the first area can be swim coating electrophoretic paint.The application is improved by being directed to vehicle door rearview mirror installation part, there is gap between rearview mirror reinforcing plate in it and the first area, and the gap meets the rearview mirror reinforcing plate and the first area can be swim coating electrophoretic paint, to improve the anticorrosion of vehicle door.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle body corrosion resistance, and particularly relates to a corrosion-resistant vehicle door. BACKGROUND

[0002] The existing cab door is mainly composed of an inner door plate, an outer door plate, various functional mounting parts, a reinforcing plate attached and welded to the door plate, a reinforcing beam for increasing the rigidity and strength of the door, an anti-collision rod and the like; due to the use of a large amount of strong corrosive disinfectant for washing the vehicle, in such a harsh use environment in the market, local corrosion occurs on the surface of the inner cavity between the inner and outer door plates, and in severe cases, the outer plate is rusted through, which seriously affects the durability and appearance quality of the cab. SUMMARY

[0003] In view of the defects in the prior art, the technical problem to be solved by the present application is how to improve the corrosion resistance of the vehicle door.

[0004] To achieve the above purpose, the corrosion-resistant vehicle door provided by the present application comprises:

[0005] a vehicle door body;

[0006] an outer door plate arranged on the vehicle door body and having a first area corresponding to a rearview mirror;

[0007] an inner door plate arranged on the vehicle door body;

[0008] a rearview mirror mounting portion comprising a middle reinforcing beam and a rearview mirror reinforcing plate, the rearview mirror reinforcing plate being mounted on the middle reinforcing beam, a gap being present between the rearview mirror reinforcing plate and the first area, and the minimum width of the gap being configured to allow the application of electrophoretic paint between the rearview mirror reinforcing plate and the first area.

[0009] On the basis of the above technology, a rearview mirror mounting boss is formed on the first area, and a sealing layer is arranged between the rearview mirror mounting boss and the first area.

[0010] On the basis of the above technology, the outer door plate has a second area corresponding to an out-opening door handle, the inner door plate has a third area corresponding to the out-opening door handle, and the second area is attached to the third area.

[0011] The vehicle door body is provided with an out-opening door handle mounting portion comprising sealing glue and a flow guide groove, the sealing glue being arranged on the periphery of the attached position of the second area and the third area, and the flow guide groove being formed in the bottom of the sealing glue.

[0012] On the basis of the above technology, the outer door plate has a fourth area corresponding to the bottom of the door, and the inner door plate has a fifth area corresponding to the bottom of the door.

[0013] The vehicle door body is provided with a vehicle door bottom, which comprises a rear reinforcing plate and a hole, the minimum distance between the rear reinforcing plate and the fourth area is configured to enable the electro-deposition paint to be applied between the reinforcing plate and the fourth area, and the hole is arranged at the bottom of the fifth area.

[0014] On the basis of the above-mentioned technology, the flow guide groove is connected to the outside of the vehicle door body or connected to the vehicle door bottom.

[0015] On the basis of the above-mentioned technology, the vehicle door body is provided with a door frame top, which is provided with a plurality of air outlets.

[0016] On the basis of the above-mentioned technology, the door frame top comprises a vehicle door frame and a glass guide rail, and the vehicle door frame is arranged at the periphery of the glass guide rail.

[0017] On the basis of the above-mentioned technology, the air outlet is arranged on the vehicle door frame, and the air outlet is provided with a detachable sealing device.

[0018] On the basis of the above-mentioned technology, the air outlet is arranged on the glass guide rail.

[0019] On the basis of the above-mentioned technology, the vehicle door outer plate has a sixth area corresponding to the step guard cover part of the vehicle door, the vehicle door inner plate has a seventh area corresponding to the step guard cover part of the vehicle door, and the sixth area and the seventh area are provided with a mounting area and a connecting area, the distance of the mounting area is 85mm-102mm, and the connecting area is at least 5mm.

[0020] Compared with the prior art, the advantages of the present application are that:

[0021] The present application improves the vehicle door mirror mounting part, so that there is a gap between the rear view mirror reinforcing plate and the first area, and the gap meets the requirement of electro-deposition paint between the mirror reinforcing plate and the first area, thereby improving the corrosion resistance of the vehicle door mirror mounting part. Therefore, the corrosion resistance of the vehicle door is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structure diagram of the corrosion-resistant vehicle door in the embodiment of the present application.

[0023] Figure 2 It is a side view of the vehicle door mirror mounting part in the embodiment of the present application.

[0024] Figure 3 It is a front view of the vehicle door mirror mounting part in the embodiment of the present application.

[0025] Figure 4 It is a structure diagram of the outward-opening door handle mounting part in the embodiment of the present application.

[0026] Figure 5This is a side sectional view of the bottom of the car door in an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the top of the door frame in an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of the door near the step guard in an embodiment of the present invention;

[0029] Figure 8 This is a side cross-sectional view of the door near the step guard in an embodiment of the present invention.

[0030] In the diagram: 1-Main body of the door, 2-Rearview mirror mounting part of the door, 201-Central reinforcing beam, 202-First area, 203-Rearview mirror reinforcing plate, 204-Gap, 205-Sealing layer, 206-Rearview mirror mounting boss, 3-Outward door handle mounting part, 301-Sealer, 302-Guide channel, 4-Bottom of the door, 401-Fifth area, 402-Rear reinforcing plate, 403-Fourth area, 404-Hole, 5-Top of the door, 501-Glass guide rail, 502-Door frame, 6-Part of the door near the step guard, 601-Step guard, 602-Seventh area, 603-Sixth area. Detailed Implementation

[0031] Therefore, we dissected and confirmed the rusted car door. The rusted areas were mainly located at the rearview mirror mounting area, the outward door handle mounting area, the bottom of the door, the top of the door frame, and the area near the door step guard.

[0032] (1) Rearview mirror installation area of ​​the car door: The rearview mirror reinforcement plate is tightly attached to the outer panel of the car door. The thickness of the anti-corrosion primer at the tight attachment point is 0. After the strong corrosive disinfectant penetrates, it will cause rust to penetrate.

[0033] (2) Outward-opening door handle installation area and bottom of the door: Corrosive disinfectant liquid condensed in the two areas, resulting in rust penetration;

[0034] (3) Top of door frame: The gas inside the door frame cannot be discharged and forms bubbles. The electrophoretic anti-corrosion primer cannot be applied to the bubble area, and corrosive gas condenses here, which leads to rust through.

[0035] (4) Door near step guard: In this area, the inner and outer panels of the door are close to the pressing cavity. Because the sheet metal is close to the joint, it is difficult to electrophoretic coating and the quality of the primer is poor. In addition, the welding part of the rear reinforcing beam on the inner panel allows material to sink and accumulate corrosive liquid, resulting in rust penetration.

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0037] Example 1

[0038] SeeFigure 1 As shown in the drawings, the anti-corrosion vehicle door in the embodiment of the present application comprises:

[0039] a vehicle door body 1;

[0040] a vehicle door outer plate arranged on the vehicle door body 1 and having a first area 202 corresponding to a rearview mirror;

[0041] a vehicle door inner plate arranged on the vehicle door body 1;

[0042] As shown in the drawings, Figure 1 、 2 As shown in the drawings, the vehicle door rearview mirror mounting portion 2 comprises a middle reinforcing beam 201 and a rearview mirror reinforcing plate 203, the rearview mirror reinforcing plate 203 is mounted on the middle reinforcing beam 201, there is a gap 204 between the rearview mirror reinforcing plate 203 and the first area 202, and the minimum width of the gap 204 is configured to enable the gap to be filled with electrophoretic paint between the rearview mirror reinforcing plate 203 and the first area 202.

[0043] Therefore, based on the performance requirements of the vehicle door rearview mirror mounting portion 2, it is necessary to not only ensure the installation strength of the rearview mirror to ensure stable installation of the rearview mirror and prevent shaking during vehicle driving, but also to ensure that the vehicle door outer plate is a thin plate that cannot be cracked by force and cannot be damaged by corrosion caused by strong corrosive liquid. The present application improves the vehicle door rearview mirror mounting portion, defines the vehicle door outer plate at the mounting position of the vehicle door rearview mirror mounting portion 2 as the first area 202, and provides a gap between the rearview mirror reinforcing plate 203 and the first area 202. The gap satisfies the condition that electrophoretic paint can be filled between the rearview mirror reinforcing plate 203 and the first area 202, and the gap is at least 5 mm, thereby improving the corrosion resistance of the vehicle door rearview mirror mounting portion 2.

[0044] Preferably, as shown in the drawings, Figure 3 The first area 202 is provided with a rearview mirror mounting boss 206, and a sealing layer 205 is arranged between the rearview mirror mounting boss 206 and the first area 202.

[0045] The benefits of such design are that, in the first area 202, the vehicle door rearview mirror mounting portion 2 is also designed with a rearview mirror mounting boss 206 for mounting the rearview mirror. In order to prevent corrosive liquid from flowing into the gap between the rearview mirror mounting boss 206 and the first area 202, causing corrosion of the vehicle door rearview mirror mounting portion 2, a sealing layer 205 is installed at the connection between the rearview mirror mounting boss 206 and the first area 202 to prevent the inflow of corrosive liquid, thereby further improving the corrosion resistance.

[0046] Preferably, as shown in the drawings, Figure 4As shown, the outer door panel has a second region corresponding to the outer opening door handle, the inner door panel has a third region corresponding to the outer opening door handle, and the second region is attached to the third region;

[0047] Further, referring to Figure 1 、 4 As shown, the outer door panel has a second region corresponding to the outer opening door handle, the inner door panel has a third region corresponding to the outer opening door handle, and the second region is attached to the third region;

[0048] The benefits of such design are that the inner and outer panels at the installation of the door handle mounting part are attached to the door handle mounting part metal sheet, the gap is almost 0, the anticorrosion primer cannot be coated, and the thickness is 0; however, the corrosion liquid can penetrate from the gap and accumulate in the low-lying area; moreover, a circle of sealant is applied around the periphery, the corrosion liquid accumulated in the low-lying area cannot flow out, causing persistent corrosion of the metal sheet, resulting in rusting of the outer panel. The outer door panel at the installation of the outer opening door handle mounting part is defined as the second region, and the inner door panel at the installation of the outer opening door handle mounting part is defined as the third region; for the outer opening door handle mounting part, a flow guide groove 302 is formed thereon, or the sealant 301 at the bottom is broken, so that the corrosion liquid retained in the door handle mounting part can flow out through the flow guide groove, reducing the retention amount of the corrosion liquid in the door handle mounting part and reducing the corrosion of the corrosion liquid to the door handle mounting part, thereby improving the corrosion resistance of the door handle mounting part.

[0049] Preferably, the flow guide groove 302 is in communication with the outside of the door body 1.

[0050] The benefits of such design are that the corrosion liquid retained in the door handle mounting part can directly flow to the outside of the door body 1 through the flow guide groove 302, thereby avoiding the corrosion of the corrosion liquid retained in the door handle mounting part to the door.

[0051] Preferably, referring to Figure 5 As shown, the outer door panel has a second region corresponding to the outer opening door handle, the inner door panel has a third region corresponding to the outer opening door handle, and the second region is attached to the third region;

[0052] Further, referring to Figure 1 、 5 As shown, the outer door panel has a second region corresponding to the outer opening door handle, the inner door panel has a third region corresponding to the outer opening door handle, and the second region is attached to the third region;

[0053] The benefit of such design is that the gap between the inner and outer panels of the door bottom 4 tends to be close, resulting in a thin paint film of the primer in the cavity of the inner and outer panels, and the reinforcing plate is tightly attached to the outer panel. The gap is 0, so it is difficult for the corrosion-resistant primer to form, and the corrosion liquid is almost 0. The corrosion liquid of the inner and outer panels of the door is also collected at the lowest part of the door after the edge covering. For the door bottom 4, a hole 404 is formed on the door bottom 4, so that the corrosion liquid retained in the door bottom 4 can flow out of the hole 404, reducing the retention amount of the corrosion liquid in the door bottom 4, reducing the corrosion of the corrosion liquid to the door bottom 4, and improving the corrosion resistance of the door bottom 4.

[0054] Preferably, as shown in Figure 1 The door body 1 is provided with a door frame top 5, and a plurality of air outlets are formed in the door frame top 5.

[0055] The benefit of such design is that the door frame top 5 is to improve the closed and narrow cavity formed by the door frame 502 and the glass guide rail 501. Due to poor paint, the accumulated gas forms a vacuum bubble, and it is difficult for phosphating liquid, electrophoretic liquid and other substances to enter the cavity to form a corrosion-resistant primer coating. The bubble moves in the cavity without paint, and after the bubble breaks, the local primer is 0. When the strong corrosive sterilization liquid condensed in the cavity is heated and evaporated, the inner cavity will be perforated and corroded. For the door frame top 5, the inside is a closed environment, and the accumulated gas forms a vacuum bubble, which will have an adverse effect on the electrophoretic coating. Therefore, a plurality of air outlets are formed in the door frame top 5 to discharge the gas inside the door frame top, thereby improving the corrosion resistance of the door frame top 5.

[0056] Further, holes are formed on the closed cavity to allow paint to enter the cavity. Considering that the cab is inclined by 30° into the paint tank and is inclined by 30° out of the paint tank, the holes are formed in the front part of the door frame. When the cab is inclined by 30° into the paint tank, the paint enters the cavity as soon as possible, and the gas in the cavity is squeezed out along the upper part of the tank that has not entered the tank at the fastest speed and maximum limit, reducing the formation of vacuum bubbles. The paint in the cavity causes the inner wall of the cavity to be immersed in the paint, forming a primer film. When the cab is inclined by 30° out of the paint tank, the holes in the front part of the door frame are first exposed to the paint surface, and air quickly enters, so that the phenomenon of vacuum suction due to the flow of paint without air supplement does not occur, the paint in the cavity is discharged as soon as possible, and the fault of paint spitting caused by retention is reduced.

[0057] Preferably, as shown in Figure 6 The door frame top 5 includes a door frame 502 and a glass guide rail 501, and the door frame 502 is arranged on the periphery of the glass guide rail 501.

[0058] The advantage of this design is that the main structure of the top 5 of the door frame is the door frame 502 and the glass guide rail 501. The glass guide rail 501 is located inside the door frame 502 and is used for raising and lowering the window.

[0059] Preferably, the air vent is located on the door frame 502, and a detachable sealing device is provided at the location of the air vent.

[0060] The advantage of this design is that, while meeting the strength requirements of the door frame 502, several vent holes can be opened on the door frame 502 to allow the gas inside the top 5 of the door frame to be discharged, reducing the formation of air bubbles inside the door frame cavity. At the same time, in order to prevent corrosive liquid from flowing into the door frame 502 from the vent holes, a removable sealing device is provided on the vent holes.

[0061] Preferred, see Figure 7 , 8 As shown, the outer panel of the door has a sixth region 603 corresponding to the door near the step guard 6, and the inner panel of the door has a seventh region 602 corresponding to the door near the step guard 6. An installation area and a connection area are provided between the sixth region 603 and the seventh region 602. The distance between the installation areas is 85mm, and the distance between the connection areas is at least 5mm.

[0062] The advantages of this design are as follows: the gap between the inner and outer panels of the door near the installation location of the step guard 6 is very small, with a minimum gap of only 4.15mm. This electrostatic shielding results in zero electric field strength on the inner surface of the outer door panel, making it difficult for electrochemical reactions to occur and for a primer layer to form. Based on the corrosion resistance requirements of the door's inner and outer panel cavities, the gap must be greater than 5mm to ensure the flow and electric field strength of the phosphating and electrophoretic solutions within the cavity. The larger the gap, the better, as it results in better primer quality and thickness on the inner surface. However, since the outer side of the inner door panel has a step guard installed, the movement gap between the inner door panel and the step guard must be around 20mm to ensure that the inner door panel and the step guard do not collide and become damaged during vehicle operation. Meanwhile, the cavity also has requirements for the installation and use of other functional components such as the glass lifter, door limiter, and inward opening handle. It is necessary to ensure sufficient usable space within the cavity. At the same time, the inner door panel abruptly tapers to the outer door panel at the edge of the inner and outer door panels, pressing and edging with the outer door panel. The abrupt taper increases the drawing depth of the parts, so it is also necessary to ensure the drawing depth and the forming of the inner door panel. Based on the above, it is determined that the distance between the inner and outer door panel cavities can be increased to 85mm.

[0063] Example 2

[0064] See Figure 1 As shown, the corrosion-resistant car door in this embodiment of the invention includes:

[0065] The door body 1;

[0066] The door outer plate is arranged on the door body 1, and has a first area 202 corresponding to the rearview mirror;

[0067] The door inner plate is arranged on the door body 1;

[0068] Referring to Figure 1 、 2 The door rearview mirror mounting portion 2 includes a middle reinforcing beam 201 and a rearview mirror reinforcing plate 203, the rearview mirror reinforcing plate 203 is mounted on the middle reinforcing beam 201, there is a gap 204 between the rearview mirror reinforcing plate 203 and the first area 202, and the minimum width of the gap 204 is configured to be able to perform the swimming coating of the electrophoretic paint between the rearview mirror reinforcing plate 203 and the first area 202.

[0069] Therefore, based on the performance requirements of the door rearview mirror mounting portion 2, both the installation strength of the rearview mirror is ensured to be stable and the vehicle cannot shake during driving, and the door outer plate is a thin plate that cannot be cracked by force and cannot be damaged by strong corrosive liquid corrosion. The present application improves the door rearview mirror mounting portion, defines the door outer plate at the mounting position of the door rearview mirror mounting portion 2 as the first area 202, and provides a gap between the rearview mirror reinforcing plate 203 and the first area 202. The gap satisfies the swimming coating of the electrophoretic paint between the rearview mirror reinforcing plate 203 and the first area 202, and the gap for swimming coating of the electrophoretic paint between the two is at least 5mm, thereby improving the corrosion resistance of the door rearview mirror mounting portion 2.

[0070] Preferably, referring to Figure 3 The first area 202 is provided with a rearview mirror mounting boss 206, and a sealing layer 205 is arranged between the rearview mirror mounting boss 206 and the first area 202.

[0071] The benefits of such design are that in the first area 202, the door rearview mirror mounting portion 2 is also designed with a rearview mirror mounting boss 206 for mounting the rearview mirror. In order to avoid the corrosion liquid flowing from the gap between the rearview mirror mounting boss 206 and the first area 202, causing the corrosion of the door rearview mirror mounting portion 2, a sealing layer 205 is installed at the connection between the rearview mirror mounting boss 206 and the first area 202 to prevent the corrosion liquid from flowing in, thereby further improving the corrosion resistance.

[0072] Preferably, referring to Figure 4 The door outer plate has a second area corresponding to the outer opening door handle, the door inner plate has a third area corresponding to the outer opening door handle, and the second area is attached to the third area;

[0073] Further, referring to Figure 1 ,4 As shown, the door body 1 is provided with an outer opening door handle mounting portion, which includes a sealing glue 301 and a flow guide groove 302. The sealing glue 301 is arranged on the periphery of the second region and the third region. The flow guide groove 302 is arranged at the bottom of the sealing glue 301.

[0074] The benefit of such design is that the inner and outer plates of the door handle mounting portion are almost 0 gap at the door handle mounting portion metal, and the anticorrosion primer cannot be coated, and the thickness is 0. However, the corrosion liquid can penetrate from the gap and gather in the low-lying place. Moreover, a circle of sealing glue is punched on the periphery, and the corrosion liquid gathered in the low-lying place cannot flow out, and the metal is corroded for a long time, resulting in rusting of the outer plate. The door outer plate of the outer opening door handle mounting portion is defined as the second region, and the door inner plate of the outer opening door handle mounting portion is defined as the third region. As for the outer opening door handle mounting portion, the flow guide groove 302 is arranged thereon, or the sealing glue 301 at the bottom is broken, so that the corrosion liquid retained in the inner part of the door handle mounting portion can flow out from the flow guide groove, the retention amount of the corrosion liquid in the inner part of the door handle mounting portion is reduced, the corrosion of the corrosion liquid to the door handle mounting portion is reduced, and the corrosion resistance of the door handle mounting portion is improved.

[0075] Preferably, as shown in Figure 5 As shown, the door outer plate has a fourth region 403 corresponding to the door bottom, and the door inner plate has a fifth region 401 corresponding to the door bottom.

[0076] Further, as shown in Figure 1 5 As shown, the door body 1 is provided with a door bottom 4, which includes a rear reinforcing plate 402 and a hole 404. The minimum distance between the rear reinforcing plate 402 and the fourth region 403 is configured to enable the electro-deposition of the primer between the reinforcing plate 402 and the fourth region 403. The hole 404 is arranged at the bottom of the fifth region 401.

[0077] The benefit of such design is that the door bottom 4 is close to the gap between the door inner and outer plates on one hand, resulting in a very thin primer film in the cavity of the inner and outer plates, and the rear reinforcing plate is close to the door outer plate. The gap is 0, so it is difficult for the anticorrosion primer to form, and the thickness is almost 0. Moreover, all the corrosion liquid of the door inner and outer plates will gather in the lowest part of the door after the edge covering. As for the door bottom, the hole 404 is arranged thereon, so that the corrosion liquid retained in the inner part of the door bottom 4 can flow out from the hole 404, the retention amount of the corrosion liquid in the inner part of the door bottom is reduced, the corrosion of the corrosion liquid to the door bottom is reduced, and the corrosion resistance of the door bottom is improved.

[0078] Preferably, the flow guide groove 302 is in communication with the door bottom 4.

[0079] ​The benefit of the design is that the corrosion liquid retained in the door handle mounting portion can directly flow to the bottom of the door 4 through the flow guide groove 302 and then flow out from the hole 404 of the bottom of the door 4, thereby avoiding the corrosion of the door by the corrosion liquid retained in the door handle mounting portion.

[0080] Preferably, referring to Figure 1 As shown in the figure, the door body 1 is provided with a door frame top 5, and a plurality of air outlet holes are formed in the door frame top 5.

[0081] The benefit of the design is that the door frame top 5 is to improve the closed and narrow cavity formed by the door frame 502 and the glass guide rail 501. Due to poor paint inlet, the accumulated gas forms a vacuum bubble, and it is difficult for phosphating liquid, electrophoretic liquid and the like in the vacuum bubble to form a corrosion-resistant primer coating. Moreover, the bubble moves in the cavity without paint liquid, and after the bubble breaks, the local primer is 0, and when the strong corrosive and sterilizing liquid evaporated by heat condenses here, the inner cavity is corroded. For the door frame top 5, the inside is a closed environment, and the accumulated gas forms a vacuum bubble, which has an adverse effect on the electrophoretic coating of the electrophoretic paint. Therefore, a plurality of air outlet holes are formed in the door frame top 5 to discharge the gas inside the door frame top, thereby improving the corrosion resistance of the door frame top 5.

[0082] Further, holes are formed on the closed cavity to allow paint liquid to enter the cavity. Considering that the cab is inclined forward by 30° to enter the paint tank and is inclined backward by 30° to exit the paint tank, the holes are formed on the front part of the door frame. When the cab is inclined forward by 30° to enter the paint tank, the paint liquid enters the cavity as soon as possible, and the gas in the cavity is squeezed out at the fastest speed and in the largest amount from the upper part which has not yet entered the tank, thereby reducing the formation of vacuum bubbles. The paint liquid entering the cavity causes the inner wall of the cavity to be immersed in the paint liquid and form a primer film. When the cab is inclined backward by 30° to exit the paint tank, the holes formed on the front part of the door frame first expose the paint surface, and air quickly enters, so that the phenomenon of vacuum suction due to the flow of paint liquid without air supplement and the resulting unclean flow of paint liquid is avoided, and the paint liquid in the cavity is discharged as soon as possible, thereby reducing the trouble of paint tank jumping caused by the retention of paint liquid.

[0083] Preferably, referring to Figure 6 As shown in the figure, the door frame top 5 includes the door frame 502 and the glass guide rail 501, and the door frame 502 is arranged on the periphery of the glass guide rail 501.

[0084] The benefit of the design is that the main structure of the door frame top 5 is the door frame 502 and the glass guide rail 501, and the glass guide rail 501 is arranged inside the door frame 502 and is used for lifting the window.

[0085] Preferably, the air outlet holes are formed on the door frame 502, and a detachable sealing device is arranged at the position where the air outlet holes are formed.

[0086] The benefit of the design is that: by design, several air outlets are arranged on the door frame 502 to make the gas in the top part of the door frame 502 exhaust and reduce the formation of bubbles in the door frame cavity, while avoiding the corrosion liquid flowing into the inside of the door frame 502 from the air outlet, so a detachable sealing device is arranged on the air outlet.

[0087] Preferably, as shown in Figure 7 、 8 , the door outer plate has a sixth region 603 corresponding to the step guard part 6 close to the door, and the door inner plate has a seventh region 602 corresponding to the step guard part 6 close to the door, and the sixth region 603 and the seventh region 602 are provided with a mounting region and a connecting region, the spacing of the mounting region is 95mm, and the connecting region is at least 5mm.

[0088] The benefit of the design is that: the inner and outer plates of the door close to the step guard part 6 installation form a small door clamping cavity spacing, and when the minimum is only 4.15mm, the electrostatic shielding causes the electric field strength of the inner surface of the door outer plate to be 0, which is difficult to cause electrochemical reaction and form a primer layer; from the corrosion resistance requirement of the door inner and outer plate clamping cavity, the spacing of the door inner and outer plate clamping cavity must be greater than 5mm, so as to ensure the surge of phosphating and electrophoretic liquid and the strength of the electric field in the cavity, and the greater the spacing of the clamping cavity, the better the quality and thickness of the primer on the inner surface; however, the outer side of the door inner plate has the installation of the step guard, and the movement gap between the door inner plate and the step guard must be about 20mm, so as to ensure that the door inner plate and the step guard do not collide and are damaged during the driving process of the vehicle. At the same time, the cavity also has the installation and use requirements of other functional parts such as the glass lifter, the door limiter and the inner opening handle, and sufficient use space must be ensured in the cavity, and the door inner plate is pressed and edge-wrapped with the door outer plate at the sharply edge-wrapped part from the door outer plate part, and the sharply edge-wrapped part increases the depth of the drawing of the part, so the depth drawing and the forming of the door inner plate must also be ensured; in summary, the spacing of the door inner and outer plate clamping cavity can be increased to 95mm.

[0089] Embodiment 3

[0090] As shown in Figure 1 , the anti-corrosion door in the embodiment of the application comprises:

[0091] A door body 1;

[0092] A door outer plate arranged on the door body 1, and having a first region 202 corresponding to a rearview mirror;

[0093] A door inner plate arranged on the door body 1;

[0094] As shown in Figure 1 ,2 As shown, the door mirror mounting portion 2 includes a middle reinforcing beam 201 and a mirror reinforcing plate 203, the mirror reinforcing plate 203 is mounted on the middle reinforcing beam 201, there is a gap 204 between the mirror reinforcing plate 203 and the first area 202, and the minimum width of the gap 204 is configured to be able to perform the swimming coating of the electrophoretic paint between the mirror reinforcing plate 203 and the first area 202.

[0095] Therefore, based on the performance requirements of the door mirror mounting portion 2, it is necessary to meet the installation strength of the mirror to ensure that the mirror is installed stably and cannot shake during vehicle driving, and it is also necessary to ensure that the outer door panel is a thin panel and cannot be cracked by force, and cannot be damaged by strong corrosive liquid corrosion. The present application improves the door mirror mounting portion, defines the outer door panel at the mounting portion of the door mirror mounting portion 2 as the first area 202, so that there is a gap between the mirror reinforcing plate 203 and the first area 202, and the gap meets the gap between the mirror reinforcing plate 203 and the first area 202. The electrophoretic paint can be coated between the two, and the gap is at least 5mm, thereby improving the corrosion resistance of the door mirror mounting portion 2.

[0096] Preferably, referring to Figure 3 As shown, the first area 202 is provided with a mirror mounting boss 206, and a sealing layer 205 is arranged between the mirror mounting boss 206 and the first area 202.

[0097] The benefits of such design are that in the first area 202, the door mirror mounting portion 2 is also designed with a mirror mounting boss 206 for mounting the mirror, in order to avoid the corrosion liquid flowing from the gap between the mirror mounting boss 206 and the first area 202, causing the corrosion of the door mirror mounting portion 2. Therefore, a sealing layer 205 is installed at the connection between the mirror mounting boss 206 and the first area 202 to prevent the corrosion liquid from flowing in, thereby further improving the corrosion resistance.

[0098] Preferably, referring to Figure 4 As shown, the outer door panel has a second area corresponding to the outer opening door handle, the inner door panel has a third area corresponding to the outer opening door handle, and the second area and the third area are attached;

[0099] Further, referring to Figure 1 , 4 As shown, the door body 1 is provided with an outer opening door handle mounting portion, which includes a sealing glue 301 and a flow guide groove 302, the sealing glue 301 is arranged at the periphery of the attached second area and third area, and the flow guide groove 302 is opened at the bottom of the sealing glue 301.

[0100] The benefit of such design is that: the inner and outer plates of the door handle mounting part installation are almost 0 gap, the anticorrosive primer cannot be coated, and the thickness is 0; however, the corrosion liquid can seep in from the gap and gather in the low-lying part; and a circle of sealant is punched around the periphery, the corrosion liquid gathered in the low-lying part cannot flow out, and the metal is corroded for a long time, resulting in rusting of the outer plate. The outer door handle mounting part installation of the vehicle door outer plate is defined as the second area, and the outer door handle mounting part installation of the vehicle door inner plate is defined as the third area; for the outer door handle mounting part, a flow guide groove 302 is opened thereon, or the sealant 301 is broken at the bottom, so that the corrosion liquid retained in the inner part of the door handle mounting part can flow out from the flow guide groove, reducing the retention amount of the corrosion liquid in the inner part of the door handle mounting part, reducing the corrosion of the corrosion liquid to the door handle mounting part, and thus improving the corrosion resistance of the door handle mounting part.

[0101] Preferably, the flow guide groove 302 is connected with the outside of the vehicle door body 1.

[0102] The benefit of such design is that: the corrosion liquid retained in the inner part of the door handle mounting part can directly flow to the outside of the vehicle door body 1 through the flow guide groove 302, thereby avoiding the corrosion of the corrosion liquid retained in the inner part of the door handle mounting part to the vehicle door.

[0103] Preferably, referring to Figure 5 , the vehicle door outer plate has a fourth area 403 corresponding to the vehicle door bottom, and the vehicle door inner plate has a fifth area 401 corresponding to the vehicle door bottom;

[0104] Further, referring to Figure 1 , 5 , the vehicle door body 1 is provided with a vehicle door bottom 4, which includes a rear reinforcing plate 402 and a hole 404, and the minimum distance between the rear reinforcing plate 402 and the fourth area 403 is configured to be able to perform electrophoretic coating of the primer, and the hole 404 is opened at the bottom of the fifth area 401.

[0105] The benefit of such design is that: the vehicle door bottom 4 is on one hand that the gap between the inner and outer plates of the vehicle door is close, resulting in that the primer film of the inner and outer plates is very thin, and the rear reinforcing plate is close to the outer plate, and the close part has a gap of 0, so that the anticorrosive primer is difficult to form, and the corrosion liquid of the inner and outer plates of the vehicle door is gathered in the lowest part after the edge covering. For the vehicle door bottom, a hole 404 is opened thereon, so that the corrosion liquid retained in the inner part of the vehicle door bottom can flow out from the hole 404, reducing the retention amount of the corrosion liquid in the inner part of the vehicle door bottom, reducing the corrosion of the corrosion liquid to the vehicle door bottom, and thus improving the corrosion resistance of the vehicle door bottom.

[0106] Preferably, referring to Figure 1As shown, the door body 1 is provided with a door frame top 5, and a plurality of air outlet holes are formed in the door frame top 5.

[0107] The door frame top 5 is designed to improve the closed and narrow cavity formed by the door frame 502 and the glass guide rail 501. The paint cannot enter the cavity, and the accumulated gas forms a vacuum bubble. The phosphating solution, electrophoretic solution and the like cannot enter the cavity to form a corrosion-resistant primer coating. After the bubble breaks, the local primer is 0, and when the strong corrosive sterilization liquid evaporated by heat condenses here, the inner cavity is corroded. The door frame top 5 is a closed environment, and the accumulated gas forms a vacuum bubble, which has an adverse effect on the electrophoretic coating. Therefore, a plurality of air outlet holes are formed in the door frame top 5 to discharge the gas in the door frame top, thereby improving the corrosion resistance of the door frame top 5.

[0108] Further, holes are formed in the closed cavity to allow the paint to enter the cavity. Considering that the cab is inclined forward by 30° to enter the paint tank and is inclined backward by 30° to exit the paint tank, the holes are formed in the front part of the door frame. When the cab is inclined forward by 30° to enter the paint tank, the paint enters the cavity as soon as possible, and the gas in the cavity is squeezed out along the upper part of the cavity that has not entered the tank at the fastest speed and in the largest amount, thereby reducing the formation of vacuum bubbles. The paint in the cavity infiltrates the inner wall of the cavity to form a primer coating. When the cab is inclined backward by 30° to exit the paint tank, the holes in the front part of the door frame are first exposed to the paint surface, and air quickly enters the holes. The holes are not formed due to the flow of paint, and there is no air supplement to form a vacuum suction, which causes the paint to flow and not clean. The holes can also push the paint in the cavity to be discharged as soon as possible, thereby reducing the paint that is retained due to stagnation and causing the paint to jump out of the tank.

[0109] Preferably, as shown in Figure 6 As shown, the door frame top 5 includes the door frame 502 and the glass guide rail 501, and the door frame 502 is arranged at the periphery of the glass guide rail 501.

[0110] The door frame top 5 mainly includes the door frame 502 and the glass guide rail 501, and the glass guide rail 501 is arranged in the door frame 502 and is used for lifting the window.

[0111] Preferably, the air outlet holes are formed in the glass guide rail 501.

[0112] The door frame top 5 mainly includes the door frame 502 and the glass guide rail 501, and the glass guide rail 501 is arranged in the door frame 502 and is used for lifting the window.

[0113] Preferably, as shown in Figure 7 , 8As shown, the door outer plate has a sixth region 603 corresponding to the door near the step cover part 6, the door inner plate has a seventh region 602 corresponding to the door near the step cover part 6, and a mounting region and a connecting region are arranged between the sixth region 603 and the seventh region 602, the mounting region has a spacing of 102 mm, and the connecting region is at least 5 mm.

[0114] The benefit of such design is that the door inner and outer plates at the mounting position of the door near the step cover part 6 form a door clamping cavity with a small spacing, and when the minimum spacing is only 4.15 mm, electrostatic shielding causes the electric field strength of the inner surface of the door outer plate to be 0, making it difficult to occur electrochemical reaction and form a primer layer; according to the corrosion resistance requirement of the door inner and outer plate clamping cavity, the spacing of the door inner and outer plate clamping cavity must be greater than 5 mm, so as to ensure the surge of phosphating and electrophoretic liquid and the strength of the electric field in the cavity, and the greater the spacing of the clamping cavity, the better the quality and thickness of the primer on the inner surface; however, the outer side of the door inner plate has the installation of the step cover, and the movement gap between the door inner plate and the step cover must be about 20 mm, so as to ensure that the door inner plate and the step cover will not collide and be damaged during the driving of the vehicle. Meanwhile, the cavity also has the installation and use requirement of other functional parts such as the glass lifter, the door limiter and the inner opening handle, and sufficient use space must be ensured in the cavity, and the door inner plate is sharply edge-reduced to the door outer plate part, is pressed and edge-wrapped with the door outer plate, the sharp edge-reduction increases the drawing depth of the part, so the deep drawing and the forming of the door inner plate must also be ensured; in conclusion, the spacing of the door inner and outer plate clamping cavity can be increased to 102 mm.

[0115] The present application is not limited to the above-mentioned embodiments, and those skilled in the art can make several improvements and refinements without departing from the principles of the present application, and these improvements and refinements are also considered to be within the protection scope of the present application. The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

Claims

1. A corrosion protected vehicle door characterized by, It includes: The door body (1); The door outer plate is arranged on the door body (1), and it has a first area (202) corresponding to the rearview mirror; The door inner plate is arranged on the door body (1); The door mirror mounting portion (2) includes a middle reinforcing beam (201) and a mirror reinforcing plate (203), the mirror reinforcing plate (203) is mounted on the middle reinforcing beam (201), there is a gap (204) between the mirror reinforcing plate (203) and the first area (202), and the minimum width of the gap (204) is configured to be able to perform electrophoretic coating between the mirror reinforcing plate (203) and the first area (202); The door outer plate has a second area corresponding to the out-opening door handle, the door inner plate has a third area corresponding to the out-opening door handle, and the second area is attached to the third area; The door body (1) is provided with an out-opening door handle mounting portion, which includes a sealing glue (301) and a flow guide groove (302), the sealing glue (301) is arranged at the periphery of the second area attached to the third area, and the flow guide groove (302) is opened at the bottom of the sealing glue (301); The door outer plate has a fourth area (403) corresponding to the door bottom, and the door inner plate has a fifth area (401) corresponding to the door bottom; The door body (1) is provided with a door bottom (4), which includes a rear reinforcing plate (402) and a hole (404), the minimum distance between the rear reinforcing plate (402) and the fourth area (403) is configured to be able to perform electrophoretic coating between the rear reinforcing plate (402) and the fourth area (403), and the hole (404) is opened at the bottom of the fifth area (401); The flow guide groove (302) is connected with the outside of the door body (1), or is connected with the door bottom (4).

2. The corrosion protected vehicle door of claim 1, wherein: The first area (202) is provided with a rearview mirror mounting boss (206), and a sealing layer (205) is arranged between the rearview mirror mounting boss (206) and the first area (202).

3. The corrosion protected vehicle door of claim 1, wherein: The door body (1) is provided with a door frame top (5), and a plurality of air outlets are arranged on the door frame top (5).

4. The corrosion protected vehicle door of claim 3, wherein: The door frame top (5) includes a door frame (502) and a glass guide rail (501), and the door frame (502) is arranged at the periphery of the glass guide rail (501).

5. The corrosion protected vehicle door of claim 4, wherein: The air outlet is arranged on the door frame (502), and a detachable sealing device is arranged at the air outlet.

6. The corrosion protected vehicle door of claim 4, wherein: The air outlet is arranged on the glass guide rail (501).

7. The corrosion protected vehicle door of claim 1, wherein: The door outer plate has a sixth area (603) corresponding to the door step guard portion (6), the door inner plate has a seventh area (602) corresponding to the door step guard portion (6), and an installation area and a connection area are arranged between the sixth area (603) and the seventh area (602), the distance of the installation area is 85mm~102mm, and the distance of the connection area is at least 5mm.

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