CN110816230A - Back door and car - Google Patents

Abstract

The invention belongs to the technical field of automobile structures, and in particular relates to a back door and an automobile. The back door comprises a back door inner panel and a back door outer panel, and the back door inner panel is fixedly connected with the back door outer panel to form the back door. A back door, the back door outer panel is provided with a first boss protruding toward the back door inner panel, and the back door inner panel is provided with a second boss protruding toward the back door outer panel, so The top surface of the first boss is in contact with the top surface of the second boss, so as to form a tail light installation for installing a tail light at the abutment of the first boss and the second boss department. The back door structure provided by the invention effectively improves the material thickness and local rigidity of the installation site, ensures the installation stability of the tail light, and is beneficial to the weight reduction and consumption reduction of the vehicle body.

Description

Back door and car

technical field

The invention belongs to the technical field of automobile structures, and in particular relates to a back door and an automobile.

Background technique

The common car back doors on the market are mostly steel back doors, and most of them do not have the problem of insufficient local rigidity at the installation point of the tail light. With the increasing pressure to reduce weight and reduce consumption, lightweight is the trend of current model development, and plastic back doors are one direction of body weight reduction. The outer panel of the plastic back door is mostly made of PP material with good surface quality and light weight, but its own rigidity is low.

The plastic back door structure of the existing car includes a back door inner panel and a back door outer panel. The conventional taillight installation method is to directly install the tail light on the back door outer panel. The rigidity of the installation point is low and the rigidity of the back door outer panel itself is improved. The difficulty is relatively high, and an additional support structure needs to be arranged between the inner panel of the back door and the outer panel of the back door to improve the rigidity, which also increases the weight of the plastic back door.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is: to solve the problems of heavy weight and low rigidity of the installation part of the tail light in the plastic back door structure mounted on the automobile, a back door and an automobile are provided.

In order to solve the above-mentioned technical problems, on the one hand, an embodiment of the present invention provides a back door, which includes a back door inner panel and a back door outer panel, and the back door inner panel is fixedly connected with the back door outer panel to form a back door. The back door, the back door outer panel is provided with a first boss protruding toward the back door inner panel, the back door inner panel is provided with a second boss protruding toward the back door outer panel, The top surface of the first boss is in contact with the top surface of the second boss, so as to form a tail light for installing a tail light at the abutment of the first boss and the second boss installation department.

Optionally, the inner panel of the back door is a plastic panel or a carbon fiber panel, and the outer panel of the back door is a plastic panel or a carbon fiber panel.

Optionally, the outer edge of the inner panel of the back door and the outer edge of the outer panel of the back door are overlapped and fixed.

Optionally, a position of the back door outer panel behind the first boss is formed with a mounting groove for accommodating a tail light.

Optionally, the first boss includes a first upper side plate, a first top plate and a first lower side plate, and the first top plate is connected between the first upper side plate and the first lower side plate. The installation groove is formed by the first upper side plate, the first top plate and the first lower side plate.

Optionally, the second boss includes a second upper side plate, a second top plate and a second lower side plate, and the second top plate is connected between the second upper side plate and the second lower side plate. During this time, the first top plate and the second top plate are in contact with each other.

Optionally, a first through hole is provided on the first top plate, a second through hole is provided on the second top plate at a position corresponding to the first through hole, and the bolt on the tail light passes through the first through hole. The hole and the second through hole are threadedly connected with a nut closely abutting on the front side of the second top plate.

Optionally, both ends of the installation groove extend to the left and right sides of the back door outer panel along the left and right directions of the back door outer panel.

Optionally, both ends of the first boss extend along the left and right directions of the back door outer panel to the left and right sides of the back door outer panel, and both ends of the second boss are along the back door. The left and right directions of the inner panel extend to the left and right sides of the inner panel of the back door.

On the other hand, an embodiment of the present invention also provides an automobile, comprising a tail light and the above-mentioned back door, wherein the tail light is mounted on the tail light mounting portion.

According to the structure of the back door provided by the present invention, the second boss on the inner panel of the back door and the first boss on the outer panel of the back door are abutted with each other, so as to form the tail light mounting portion, The second boss directly supports the first boss, which effectively improves the material thickness and local rigidity of the installation site, and ensures the installation stability of the taillight; on the other hand, the first boss and all the The fitting arrangement of the second boss improves the overall rigidity of the back door and the surface rigidity of the outer panel of the back door without adding additional parts and weights, improves the quality of the whole vehicle, and is beneficial to the vehicle body. Lose weight and reduce consumption.

Description of drawings

FIG. 1 is a schematic diagram of the installation structure of a back door and a tail light provided by an embodiment of the present invention;

Fig. 2 is the sectional view of A-A section in Fig. 1;

3 is a schematic structural diagram of a back door provided by an embodiment of the present invention;

Fig. 4 is the sectional view of the B-B section in Fig. 3;

FIG. 5 is a schematic structural diagram of a tail light provided by an embodiment of the present invention.

The reference numerals in the accompanying drawings are as follows:

1, back door; 11, back door inner panel; 111, frame part; 112, window hole; 113, second boss; 1131, second upper side panel; 1132, second top panel; 1133, second lower side plate; 114, second through hole; 12, back door outer plate; 121, first boss; 121a, mounting groove; 1211, first upper side plate; 1212, first top plate; 1213, first lower side plate; 122, the first through hole; 123, the concave-convex matching structure; 124, the license plate area; 125, the rivet;

2. Tail light; 21. Protective shell; 22. Lamp; 23. Mounting plate; 24. Bolt; 25. Nut.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

In the description of the present invention, it should be understood that the terms "width", "upper", "lower", "left", "right", "front", "rear", "top", "bottom", " The orientation or positional relationship indicated by "inner", "outer", "lateral", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the indicated device or Elements must have a particular orientation, be constructed and operate in a particular orientation and are therefore not to be construed as limitations of the invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

1 to 4 , an embodiment of the present invention discloses a back door 1 , which includes a back door inner panel 11 and a back door outer panel 12 , the back door inner panel 11 and the back door outer panel 12 are fixedly connected To form the back door 1, the back door outer panel 12 is provided with a first boss 121 protruding toward the back door inner panel 11, and the back door inner panel 11 is provided with an outer panel facing the back door 12. The protruding second boss 113, the top surface of the first boss 121 is in contact with the top surface of the second boss 113, so that the first boss 121 and the second boss The abutting portion of the boss 113 forms a tail light mounting portion for mounting the tail light 2 .

According to the structure of the back door 1 provided by the present invention, the second boss 113 on the back door inner panel 11 and the first boss 121 on the back door outer panel 12 abut each other to form the The installation site of the tail light 2 directly supports the first boss 121 through the second boss 113, which effectively improves the material thickness and local rigidity of the installation site, and ensures the installation stability of the tail light 2; On the one hand, the fitting arrangement of the first boss 121 and the second boss 113 improves the overall rigidity of the back door 1 and the back door outer panel without adding extra parts and weight The surface stiffness of 12 improves the quality of the whole vehicle, which is beneficial to the weight reduction and consumption reduction of the body.

The top of the back door 1 is mounted on the back of the vehicle body frame by setting a hinge structure.

In one embodiment, the back door inner panel 11 is a plastic panel or a carbon fiber panel, and the back door outer panel 12 is a plastic panel or a carbon fiber panel.

In a preferred embodiment, the back door inner panel 11 and the back door outer panel 12 are both plastic plates.

Compared with metal materials, the plastic plate has a lower material density, which can effectively reduce the total weight of the back door 1, and at the same time, through the bonding of the second boss 113 and the first boss 121 in this embodiment The setting avoids the problem of low rigidity of the plastic plate itself.

In one embodiment, the first boss 121 is an integrally formed plastic structure on the back door outer panel 12 , and the second boss 113 is an integrally formed plastic structure on the back door inner panel 11 . structure.

Specifically, the back door inner panel 11 and the back door outer panel 12 may be made of high molecular polymer materials, such as PET, PP, and the like.

In some embodiments, glass fibers or carbon fibers can also be added to the high-molecular polymer material to improve its mechanical strength.

In one embodiment, the outer edge of the inner panel 11 of the back door and the outer edge of the outer panel 12 of the back door can be fixed by lap bonding. Specifically, the outer edge of the back door inner panel 11 is abutted with the outer edge of the back door outer panel 12, and the outer edge of the back door inner panel 11 is opposite to the side surface of the back door outer panel 12. Apply glue with high bonding strength, and then press the back door inner panel 11 and the back door outer panel 12 to make the glue solidify and bond, so as to realize the back door inner panel 11 and the back door outer panel 12 are fixed to each other.

In some embodiments, the back door inner panel 11 may further be provided with a glue groove for applying glue, and the back door inner panel 11 and the back door outer panel 12 are positioned to each other through the concave-convex matching structure 123 . , to avoid the dislocation of the back door inner panel 11 and the back door outer panel 12 .

It should be noted that, the connection method of the back door inner panel 11 and the back door outer panel 12 may also adopt other methods other than gluing, such as bolt connection and snap connection.

As shown in FIG. 2 , in one embodiment, a mounting groove 121 a for accommodating a tail light 2 is formed at a position of the back door outer panel 12 behind the first boss 121 , and the tail light 2 is at least partially embedded in the described in installation 121a.

The setting of the installation groove 121a is beneficial to reduce the distance between the outer panel 12 of the back door and the inner panel 11 of the back door, so as to realize the fitting of the first boss 121 and the second boss 113, and The installation groove 121a can play a certain clamping and limiting role for the tail lamp 2, so as to prevent the tail lamp 2 from being displaced by external force after being fixed, and at the same time reduce the interference between the tail lamp 2 and the outside.

In one embodiment, the first boss 121 includes a first upper side plate 1211 , a first top plate 1212 and a first lower side plate 1213 , the first upper side plate 1211 and the first lower side plate 1213 Both are formed by the recess of the back door outer panel 12 toward the back door inner panel 11, and the first top panel 1212 is connected between the first upper side panel 1211 and the first lower side panel 1213, so The first upper side plate 1211 , the first top plate 1212 and the first lower side plate 1213 are of an integrated structure, and the mounting groove 121a is formed by the first upper side plate 1211 , the first top plate 1212 and the first lower side plate 1211 . The side panels 1213 are enclosed.

In one embodiment, the second boss 113 includes a second upper side plate 1131 , a second top plate 1132 and a second lower side plate 1133 , the second upper side plate 1131 and the second lower side plate 1133 Both are formed by the back door inner panel 11 protruding toward the back door outer panel 12, and the second top panel 1132 is connected between the second upper side panel 1131 and the second lower side panel 1133, so The second upper side plate 1131 , the second top plate 1132 and the second lower side plate 1133 are of an integrated structure, and the first top plate 1212 and the second top plate 1132 are in contact with each other.

The first upper side plate 1211 and the first lower side plate 1213 support the first top plate 1212, and the second upper side plate 1131 and the second lower side plate 1133 support the first top plate 1212. The supporting function of the second top plate 1132 .

In one embodiment, the first top plate 1212 is provided with a first through hole 122, the second top plate 1132 is provided with a second through hole 114 at a position corresponding to the first through hole 122, The bolt 24 passes through the first through hole 122 and the second through hole 114 and is threadedly connected with the nut 25 which is closely attached to the front side of the second top plate 1132. One side of the first top plate 1212 is described.

The tail light 2 includes a mounting plate 23 , a lamp 22 and a protective shell 21 , the mounting plate 23 is connected with the protective shell 21 , and the lamp 22 is located between the mounting plate 23 and the protective shell 21 . A plurality of the bolts 24 are connected to the mounting plate 23 .

The second top plate 1132 , the first top plate 1212 and the tail light 2 can be connected in series by the bolts 24 and the nuts 25 , and the two sides of the second top plate 1132 and the first top plate 1212 can be connected in series at the same time. Apply a pre-tightening force to ensure the fit of the second top plate 1132 and the first top plate 1212, realize the fastening of the back door outer panel 12 and the back door inner panel 11, and avoid the back door outer panel The effect of the gap between 12 and the back door inner panel 11 on its overall stiffness.

As shown in FIG. 3 , in one embodiment, the installation groove 121a is horizontally placed on the back door outer panel 12 along the left-right direction of the back door outer panel 12 . The ends extend to the left and right sides of the back door outer panel 12 along the left-right direction of the back door outer panel 12 . In this way, it can be used to install through-type tail lights.

As shown in FIG. 3 and FIG. 5 , in one embodiment, the cross-sectional width of the middle section of the installation groove 121 a is smaller than the cross-sectional width of both ends of the installation groove 121 a, and the shape of the tail light 2 is the same as the shape of the installation groove 121 a Adaptation, that is, the tail light 2 is also a structure with a narrow middle and wide sides, through which the lateral sliding of the tail light 2 in the installation groove 121a can be avoided. In one embodiment, both ends of the first boss 121 extend to the left and right sides of the back door outer panel 12 along the left and right directions of the back door outer panel 12 , and two ends of the second boss 113 extend to the left and right sides of the back door outer panel 12 . The ends extend to the left and right sides of the back door inner panel 11 along the left and right directions of the back door inner panel 11 , so as to enhance the overall strength of the back door 1 . In addition, support over the entire length of the through-type tail light is also possible.

As shown in FIG. 3 , the top of the back door inner panel 11 is provided with a frame portion 111 , and the frame portion 111 is covered with a frame outer panel (not shown) toward the direction of the back door outer panel 12 . The interior of the frame portion 111 is formed with a window hole 112 for installing the window glass. When the window glass in the frame portion 111 is installed, the window glass can be fixed by gluing or a slot. In the frame portion 111 , or the frame portion 111 and the frame outer plate sandwich the vehicle window glass.

The back door outer panel 12 also has a license plate area 124 for installing a license plate. The license plate area 124 is located below the installation groove 121a. A plurality of rivets 125 are provided on the license plate area 124. The rivets 125 For fixing license plates.

Another embodiment of the present invention further provides an automobile, comprising a tail light 2 and the above-mentioned back door 1 , and the tail light 2 is mounted on the tail light mounting portion.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims (10)

1. The utility model provides a backdoor, its characterized in that, includes backdoor inner panel and backdoor planking, the backdoor inner panel with backdoor planking fixed connection is in order to form the backdoor, the backdoor planking is provided with the court the convex first boss of backdoor inner panel, the backdoor inner panel is provided with the court the convex second boss of backdoor planking, the top surface of first boss with the top surface laminating butt of second boss, with first boss with the butt department of second boss forms the tail lamp installation department that is used for installing the tail lamp.

2. The tailgate according to claim 1, wherein the tailgate inner panel is a plastic panel or a carbon fiber panel, and the tailgate outer panel is a plastic panel or a carbon fiber panel.

3. The tailgate according to claim 1, wherein an outer edge of the tailgate inner panel and an outer edge of the tailgate outer panel are secured in overlapping relation.

4. The tailgate according to claim 1, wherein a mounting groove for receiving a tail light is formed in the tailgate outer panel at a position rearward of the first boss.

5. The tailgate of claim 4, wherein the first boss comprises a first upper side plate, a first top plate and a first lower side plate, the first top plate is connected between the first upper side plate and the first lower side plate, and the mounting slot is enclosed by the first upper side plate, the first top plate and the first lower side plate.

6. The tailgate of claim 5, wherein the second boss comprises a second upper side panel, a second top panel, and a second lower side panel, the second top panel being connected between the second upper side panel and the second lower side panel, the first top panel and the second top panel being in abutting engagement.

7. The backdoor of claim 4, wherein the first top plate is provided with a first through hole, the second top plate is provided with a second through hole corresponding to the first through hole, and a bolt on the tail light passes through the first through hole and the second through hole and is in threaded connection with a nut tightly attached to the front side surface of the second top plate.

8. The tailgate according to claim 4, wherein both ends of the mounting groove extend to both left and right sides of the tailgate outer panel in a left-right direction of the tailgate outer panel.

9. The tailgate according to claim 1, wherein both ends of the first bosses extend to both sides of the tailgate outer panel in a left-right direction of the tailgate outer panel, and both ends of the second bosses extend to both sides of the tailgate inner panel in a left-right direction of the tailgate inner panel.

10. An automobile comprising a back door as claimed in any one of claims 1 to 9 and a tail light mounted to the tail light mounting portion.

Images