CN101538981A

CN101538981A - Automobile door panel

Info

Publication number: CN101538981A
Application number: CN200810069477A
Authority: CN
Inventors: 李昌均; 魏建芳
Original assignee: Lifan Industry Group Co Ltd
Current assignee: Lifan Technology Group Co Ltd
Priority date: 2008-03-17
Filing date: 2008-03-17
Publication date: 2009-09-23
Anticipated expiration: 2028-03-17
Also published as: CN101538981B

Abstract

The invention discloses an automobile door panel. An automobile door inner panel (1) arranged on one side of an automobile door outer panel (2) consists of an inner panel front body (1a) and an inner panel back body (1b), wherein the tail end of the inner panel front body (1a) is connected and fixed with the head end of the inner panel back body (1b); the wall thickness of the inner panel front body (1a) is between 1.1 and 1.4 mm; the wall thickness of the inner panel back body (1b) is between 0.5 and 0.7 mm; and the width ratio of the inner panel front body (1a) to the inner panel back body (1b) is between 1:6 and 1:4. The invention adopts a split type automobile door inner panel structure so as to ensure the strength of the front part of the automobile door inner panel and prevent the front part of the automobile door inner panel from deformation caused by the tensile effect resulted from the opening and closing of the automobile door. The automobile door panel can also effectively reduce the weight of the whole automobile door, reduce the gravity load born by a hinge of the automobile door, and consequently prevent the automobile door from coming down and effectively ensure the use effect and service life of the automobile door.

Description

Automobile door panel

Technical field

The present invention relates to a kind of car member, relate in particular to automobile door panel.

Background technology

At present, automobile door panel generally is made of inner plate of car door and door skin, and both are the monolithic platy structure.Inner plate of car door is arranged at a side of door skin, and wall thickness is about 0.8mm.Edge, front, back edge and the lower edge of inner plate of car door are fixed with the corresponding sides of door skin respectively, and the front portion of inner plate of car door is connected with car vehicle frame gusset by hinge.The automobile door panel of above structure has the following disadvantages:

1, the front portion of inner plate of car door is connected with the vehicle frame gusset by hinge, in the process of switch car door, pulling force will be carried in the front portion of inner plate of car door, because the wall thickness of inner plate of car door is about 0.8mm, the wall thickness of inner plate of car door front portion is less than normal, strength deficiency, under the effect of switch car door pulling force many times, the front portion of inner plate of car door deforms easily, and sagging can appear in whole sedan door, and then influences the normal use of car door.

2, the wall thickness at inner plate of car door rear portion is bigger than normal, the raw material that not only expend are many, increased cost of production, and can cause the weight of car door integral body to strengthen, the car door gravity that hinge carried in the process of switch car door is bigger like this, phenomenons such as the inner plate of car door front portion is out of shape, the sedan door generation is sagging also can occur.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of can effectively prevent the inner plate of car door distortion, and avoids car door that sagging automobile door panel takes place.

Technical scheme of the present invention is as follows: a kind of automobile door panel, side at door skin is provided with inner plate of car door, its key is: described inner plate of car door by interior plate front body and inner panel after body constitute, wherein the head end of body links to each other and fixing behind the tail end of interior plate front body and the inner panel, the wall thickness of plate front body is 1.1～1.4mm in described, the wall thickness of body is 0.5～0.7mm behind the inner panel, and the ratio of the width of body is 1: 6～1: 4 behind interior plate front body and the inner panel.

Among the present invention, inner plate of car door adopts split-type structural, the wall thickness of body has nothing in common with each other behind interior plate front body and the inner panel, and the wall thickness of interior plate front body greater than inner panel after the wall thickness of body, so both guaranteed the intensity of inner plate of car door front portion, alleviate the weight of whole sedan door again, thereby effectively prevented the inner plate of car door distortion, and avoided car door generation sagging.The wall thickness of interior plate front body is advisable with 1.1～1.4mm, and too small then insufficient strength excessively not only there is no need, but also can cause waste of raw materials.The wall thickness of body is advisable with 0.5～0.7mm behind the inner panel, outside the too small specification that then exceeds common used material, and the selection inconvenience, intensity is also bad, excessive also the existence wasted raw-material problem, but also can strengthen the weight of car door, increases the load that body hinge carried in the switch car door process.The ratio of the width of body was advisable with 1: 6～1: 4 behind interior plate front body and the inner panel, and the too small body hinge that then is not easy to of ratio is installed, and the position intensity that the door hinge of buying car in installments is installed is also not enough, the excessive effect that alleviates car door weight that then do not reach of ratio.

The head end of body is superimposed behind the tail end of above-mentioned interior plate front body and the inner panel, and both are fixing by welding, and it is easy to engage like this, and it is firm to connect, and can effectively prevent to come off.

As preferably, above-mentioned in the wall thickness of plate front body be 1.2mm, the wall thickness of body is 0.6mm behind the inner panel, the ratio of the width of body is 1: 5 behind interior plate front body and the inner panel.

Beneficial effect: the present invention adopts split type inner plate of car door structure, can ensure the intensity of inner plate of car door front portion, prevents that the inner plate of car door front portion is subjected to the influence of switch car door pulling force and deforms; The present invention can also effectively alleviate the weight of whole sedan door, the gravity load that body hinge is carried is less, and then it is sagging to have avoided car door to take place, and has effectively ensured the result of use and the application life of car door, have be skillfully constructed, reasonable in design, implement characteristics such as easy.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Fig. 2 is the A-A sectional view of Fig. 1.

Fig. 3 is the D-D sectional view of Fig. 1.

Fig. 4 is the B portion enlarged drawing of Fig. 2.

Fig. 5 is the C portion enlarged drawing of Fig. 2.

The specific embodiment

The invention will be further described below in conjunction with drawings and Examples:

As Fig. 1, Fig. 2, Fig. 3 and shown in Figure 5, the present invention is made of inner plate of car door 1 and door skin 2, wherein inner plate of car door 1 is positioned at a side of door skin 2, this inner plate of car door 1 by interior plate front body 1a and inner panel after body 1b form, the height of body 1b adapts behind the height of interior plate front body 1a and the inner panel.The wall thickness of plate front body 1a is 1.1～1.4mm in described, and preferred 1.2mm respectively has a breach in the upper and lower part of interior plate front body 1a rear end in the present embodiment.The wall thickness of body 1b is 0.5～0.7mm behind the described inner panel, preferred 0.6mm in the present embodiment, and the upper and lower part of body 1b front end also respectively has a breach behind inner panel.In described behind tail end and the inner panel of plate front body 1a the head end of body 1b be superimposed, both are fixing by welding, the head end of body 1b links to each other behind the tail end that makes interior plate front body 1a and the inner panel, forms a split type whole plated construction.The breach that body 1b corresponding end top is offered behind interior plate front body 1a and the inner panel surrounds the spiral lifting device installing hole 3 of abnormity, and the breach that body 1b corresponding end bottom is offered behind interior plate front body 1a and the inner panel surrounds circular loudspeaker installing hole 4.

As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the platy structure of door skin 2 for having certain radian, the front end of this door skin 2, rear end and lower end all towards the direction distortion bending of inner plate of car door 1, form " U " shape bound edge groove.Front portion and the bottom of plate front body 1a all bend continuously towards the direction of door skin 2 in described, and the end of each bending part and door skin 2 are fitted, and extend in the bound edge groove corresponding on the door skin 2, and be fastening by compacting and viscose glue.Similarly, the rear portion of body 1b and bottom also bend continuously towards the direction of door skin 2 behind the described inner panel, and the end of each bending part and door skin 2 are fitted, and extend in the bound edge groove corresponding on the door skin 2, and be also fastening by compacting and viscose glue.

Among the present invention, inner plate of car door adopts split-type structural, the wall thickness of body has nothing in common with each other behind interior plate front body and the inner panel, the wall thickness of interior plate front body 1a is 1.1～1.4mm, the wall thickness of body 1b is 0.5～0.7mm behind the inner panel, has so both guaranteed the intensity of inner plate of car door front portion, has alleviated the weight of whole sedan door again, thereby effectively prevented the inner plate of car door distortion, and avoided car door generation sagging.

From Fig. 1, Fig. 2 further as can be known, the ratio of the width of body 1b is 1: 6～1: 4 behind interior plate front body 1a and the inner panel, the too small body hinge that then is not easy to of ratio is installed, and the position intensity that the door hinge of buying car in installments is installed is also not enough, the excessive effect that alleviates car door weight that then do not reach of ratio.In in the present embodiment behind plate front body 1a and the inner panel ratio of the width of body 1b be preferably 1: 5.

Although below in conjunction with the accompanying drawings the preferred embodiments of the present invention are described; but the invention is not restricted to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic rather than determinate; those of ordinary skill in the art is under enlightenment of the present invention; under the prerequisite of aim of the present invention and claim; can make multiple similar expression; wall thickness as interior plate front body 1a is set to 1.1mm; 1.3mm; 1.4mm; perhaps the wall thickness of body 1b is set to 0.5mm behind the inner panel; 0.7mm; the ratio of the width of body 1b is set to 1: 6 behind perhaps interior plate front body 1a and the inner panel; 1: 4; perhaps change the fixed form between inner plate of car door 1 and the door skin 2 into welding, such conversion all falls within protection scope of the present invention.

Claims

1, a kind of automobile door panel, side at door skin (2) is provided with inner plate of car door (1), it is characterized in that: described inner plate of car door (1) by interior plate front body (1a) and inner panel after body (1b) constitute, the head end of body (1b) links to each other and fixing behind the tail end of wherein interior plate front body (1a) and the inner panel, the wall thickness of plate front body (1a) is 1.1～1.4mm in described, the wall thickness of body behind the inner panel (1b) is 0.5～0.7mm, and the ratio of the width of body (1b) is 1: 6～1: 4 behind interior plate front body (1a) and the inner panel.

2, automobile door panel according to claim 1 is characterized in that: the head end of body (1b) is superimposed behind the tail end of described interior plate front body (1a) and the inner panel, and both are fixing by welding.

3, automobile door panel according to claim 1 and 2 is characterized in that: the wall thickness of plate front body (1a) is 1.2mm in described, and the wall thickness of body behind the inner panel (1b) is 0.6mm, and the ratio of the width of body (1b) is 1: 5 behind interior plate front body (1a) and the inner panel.