CN217778316U

CN217778316U - Back door structure and vehicle

Info

Publication number: CN217778316U
Application number: CN202122605282.6U
Authority: CN
Inventors: 张庆
Original assignee: Beijing CHJ Automobile Technology Co Ltd
Current assignee: Beijing CHJ Automobile Technology Co Ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2022-11-11
Anticipated expiration: 2031-10-27

Abstract

The utility model relates to a back door structure and vehicle, this back door structure include back door body and back door lock reinforcing plate, the back door body include back door planking and connect with the inboard back door inner panel of back door planking, the middle part of back door body has indent department of buckling, back door lock reinforcing plate is located back door planking with between the back door inner panel, and be located the below of indent department of buckling, back door lock reinforcing plate is at the both ends orientation along automobile body width direction back door planking's direction is buckled in order to support back door planking to when solving the vehicle low frequency and rumming the problem, guaranteed the bending rigidity and the stability of back door structure.

Description

Back door structure and vehicle

Technical Field

The present disclosure relates to the field of vehicle technology, and in particular, to a back door structure and a vehicle.

Background

The back door is an important part of the vehicle. In the running process of the vehicle, especially when the vehicle runs on a rough road condition (such as an asphalt road surface), the road excitation can be transmitted to the vehicle body through wheels and a chassis to cause the resonance of parts such as a large plate part and an opening and closing part of the vehicle body, so that the feeling of low-frequency 'rumble' sound beside the ears of passengers is caused, and the riding experience of the passengers is not good.

In the prior art, the self material rigidity of the back door is weakened, so that the back door constraint mode is reduced and the frequency of the whole vehicle is avoided, and the low-frequency rumble is weakened. However, this results in a back door with insufficient bending stiffness and poor stability.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problem or at least partially solve the above technical problem, the present disclosure provides a back door structure and a vehicle.

In a first aspect, the present disclosure provides a back door structure comprising a back door body and a back door lock reinforcement plate;

the backdoor body comprises a backdoor outer plate and a backdoor inner plate positioned on the inner side of the backdoor outer plate, and the middle part of the backdoor body is provided with an inward-concave bent part;

the back door lock reinforcing plate is positioned between the back door outer plate and the back door inner plate and is positioned below the inwards concave bent part; the two ends of the back door lock reinforcing plate in the width direction of the vehicle body bend towards the direction of the back door outer plate to support the back door outer plate.

According to an embodiment of the present disclosure, support members are disposed on two sides of the back door lock reinforcing plate, and two ends of the back door lock reinforcing plate in the width direction of the vehicle body are connected with the back door outer plate through the support members.

According to an embodiment of the present disclosure, the back door lock reinforcing plate is provided with receiving structures for receiving the supporting members at both ends in the vehicle body width direction.

According to an embodiment of the present disclosure, the accommodating structure is an accommodating groove formed by being concave toward a direction away from the outer back door panel, and a portion of the supporting member is located in the accommodating groove.

According to an embodiment of the present disclosure, the supporting member is an expansion glue, and the expansion glue is used for being bonded with the outer back door panel to connect the outer back door panel.

According to an embodiment of the present disclosure, the expansion glue is strip-shaped, and the expansion glue extends along the height direction of the back door lock reinforcing plate.

According to one embodiment of the present disclosure, back door reinforcing plates are disposed on both sides of the back door body, and the back door reinforcing plates are located between a back door outer plate and the back door inner plate;

the thickness range of the back door reinforcing plate is 2.0 mm-3.0 mm.

According to one embodiment of the present disclosure, the thickness of the back door reinforcing plate ranges from 2.4mm to 2.6mm.

According to one embodiment of the present disclosure, electrical strut reinforcement plates are disposed on two sides of the back door body, and the electrical strut reinforcement plates are located between the back door outer plate and the back door inner plate;

the thickness range of the electric stay bar reinforcing plate is 1.8 mm-2.5 mm.

In a second aspect, the present disclosure provides a vehicle comprising a tailgate structure as described above.

Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:

the utility model provides a back door structure and vehicle, through set up back of the body lock reinforcing plate between back of the body door planking and back of the body door inner panel, and set up the below of the indent department of buckling at the middle part of back of the body door reinforcing plate, namely, back of the body lock reinforcing plate only sets up the below of the department of buckling at the indent, the top of the indent department of buckling of back of the body door does not set up back of the body lock reinforcing plate, through strengthening the structure of indent department of buckling below, and the structure of the department top of buckling of weakening indent, make back door structure restraint mode reduce, in order to play the effect that weakens the low frequency rumble, thereby guarantee passenger's the experience of taking. Simultaneously, make the both ends of back of the body lock reinforcing plate along the ascending direction of automobile body width buckle in order to support the back of the body door planking towards the direction of back of the body door planking, because the back of the body door planking is being supported at the both ends of back of the body lock reinforcing plate, when the atress of back of the body door planking, partial external force can transmit to the back of the body lock reinforcing plate, avoid external force whole concentrate on the back of the body door planking and lead to the back of the body door planking to warp, thereby the bending stiffness and the stability of back of the body door planking have been improved, and then the bending stiffness and the stability of whole back of the body door body have been improved, that is to say, the back door structure that this disclosure provided is when solving the vehicle low frequency and rumbling problem, the structural rigidity and the stability of back door structure have been guaranteed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the embodiments or technical solutions in the prior art description will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a front view of a back door structure (back door outer panel not shown) according to an embodiment of the present disclosure;

FIG. 2 isbase:Sub>A sectional view taken along line A-A of FIG. 1;

FIG. 3 is a sectional view taken along line B-B of FIG. 1;

FIG. 4 is a perspective view of an inner side structure of a back door structure according to an embodiment of the present disclosure;

fig. 5 is a perspective view of an outboard side structure of a back door structure in accordance with an embodiment of the present disclosure.

Wherein, 1, a back door body; 11. a back door outer plate; 12. a back door inner panel; 2. a back door lock reinforcing plate; 21. a support member; 22. an accommodating structure; 3. a back door reinforcement panel; 4. electric stay bar reinforcing plate.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.

Example one

Referring to fig. 1 to 5, the present embodiment provides a back door structure, which includes a back door body 1 and a back door lock reinforcing plate 2.

The back door body 1 includes a back door outer panel 11 and a back door inner panel 12 connected to an inner side of the back door outer panel 11. Referring to fig. 3 and 5, the back door body 1 has a concave bending portion S at the middle portion thereof. Specifically, the position of the back door outer plate 11 located at the inward-concave bent position S is concave towards the direction of the back door inner plate 11, and the position of the back door inner plate 12 located at the inward-concave bent position S is concave towards the direction of the back door outer plate 11, so that the inward-concave bent position S is integrally concave towards the inside of the vehicle. In particular, the concave bending part S can be used for mounting components such as a vehicle lamp.

The back door lock reinforcing plate 2 is positioned between the back door outer plate 11 and the back door inner plate 12, and the back door lock reinforcing plate 2 is positioned below the concave bending part S. Specifically, back door lock reinforcing plate 2 extends towards the bottom of back door body 1, and back door lock reinforcing plate 2 is specifically accessible rivet and back door inner panel 12 are connected, and this embodiment does not specifically limit the connected mode of back door lock reinforcing plate 2 and back door inner panel 12, as long as can link together both can.

That is to say, back door lock reinforcing plate 2 only sets up the below of the indent department of buckling S on back of the body door body 1, and the top of the indent department of buckling S on back of the body door body 1 does not set up back door lock reinforcing plate 2, promptly, through strengthening the structure of indent department of buckling S below, and weakens the structure of indent department of buckling S top for back door structure restraint mode reduces, avoids with whole car frequency, thereby plays the effect of weakening low frequency rumble, has guaranteed passenger' S the experience of taking.

Meanwhile, the back door lock reinforcing plate 2 is bent at both ends in the vehicle body width direction (i.e., the y direction as shown in fig. 1) toward the back door outer panel 11 to support the back door outer panel 11. Referring to fig. 1, both sides of the back door lock reinforcing plate 2 refer to opposite ends of the back door lock reinforcing plate 2 in the width direction of the vehicle (i.e., the y direction referring to fig. 1). The arrangement enables the back door lock reinforcing plate 2 to apply a supporting force to the back door outer plate 11, when the back door outer plate 11 is stressed, part of the force can be transmitted to the back door lock reinforcing plate 2, and the deformation of the back door outer plate 11 caused by the fact that external force is completely concentrated on the back door outer plate 11 is avoided, so that the bending rigidity and the stability of the back door outer plate 11 are improved, and further the bending rigidity and the stability of the whole back door body 1 are improved.

According to the back door structure provided by the embodiment, the back door lock reinforcing plate 2 is arranged below the concave bending part S on the back door body 1, and the rigidity of the area above the concave bending part S of the back door body 1 is weakened through the structure below the concave bending part S, so that the low-frequency booming sound is reduced; simultaneously through the both sides that make back of the body lock reinforcing plate 2 buckle in order to support back of the body door planking 11 towards the direction of back of the body door planking 11 to improved the rigidity of back of the body door planking 11, and then guaranteed the rigidity of whole back door structure, that is to say, the back door structure of this embodiment, under the prerequisite of guaranteeing the bulk rigidity and the durability of back door structure, can also reduce the low frequency and boom and sound, in order to improve passenger's the comfort level of taking.

Referring to fig. 1 and 2, the back door lock reinforcing plate 2 is provided with supports 21 at both ends in the vehicle width direction, and both ends of the back door lock reinforcing plate 2 support the back door outer panel 11 through the supports 21. The support member 21 connects and supports the back door outer panel 11, so as to further improve the support effect of the back door outer panel 11, and further improve the bending rigidity and stability of the back door outer panel 11.

Referring to fig. 2, the back door lock reinforcement plate 2 is provided with receiving structures 22 for receiving the stay 21 at both ends in the vehicle body width direction. By arranging the accommodating structure 22, the supporting member 21 can be arranged more conveniently, and the supporting effect of the supporting member 21 on the back door outer plate 11 due to the movement of the supporting member 21 between the back door lock reinforcing plate 2 and the back door outer plate 11 can be avoided.

Specifically, the receiving structure 22 may be a receiving groove formed by being recessed toward a direction away from the back door outer panel 11, and a portion of the support 21 is located in the receiving groove. That is, a receiving groove is formed in the side of the back door lock reinforcing plate 2 facing the back door outer plate 11, the receiving groove is disposed along the height direction of the back door lock reinforcing plate 2 (i.e., the z direction shown in fig. 1), and the supporting member 21 is located in the receiving groove and abuts against the inner side of the back door outer plate 11 to support the back door outer plate 11.

Of course, in other implementation manners, a stopping rib may be provided on a side surface of the back door lock reinforcing plate 2 facing the back door outer plate 11, one supporting member 21 corresponds to two stopping ribs, and a space defined between the two stopping ribs is formed as the accommodating structure 22.

The supporting member 21 may be an expansion glue, and the expansion glue is adhered to the outer back door panel 11 to connect or support the outer back door panel 11. Through setting up support piece 21 into the inflation colloid, because the inflation colloid has certain elasticity, consequently can play certain cushioning effect and cushioning effect, and then improved the stability of whole back door structure.

This inflation colloid specifically can be liquid colloid, during the assembly, glues to the both sides point of back of the body lock reinforcing plate 2, and pastes the both sides of back of the body lock reinforcing plate 2 in back of the body door planking 11 inboardly to make behind the liquid colloid solidification back bond back of the body lock reinforcing plate 2 and back of the body door planking 11 together, and support back of the body door planking 11.

Specifically can set up the inflation colloid into the strip, the banding inflation colloid extends along the direction of height of back of the body lock reinforcing plate 2, extend along the z direction that refers to figure 1 promptly, so that the relative both sides of back of the body lock reinforcing plate 2 all with the back of the body door planking between 11 through the inflation colloid fully bond, so that the connection steadiness between back of the body lock reinforcing plate 2 and the back of the body door planking 11 is better, and can ensure effective and reliable bonding between inflation colloid and the back of the body door planking 11, thereby guarantee its supporting role to back of the body door planking 11, and then realize the effect of the bulk rigidity of reinforcing back door structure, make the overall structure stability of back door structure better.

Of course, in other implementation manners, the supporting member 21 may also be made of other elastic materials such as silica gel or rubber, and the supporting member 21 may be specifically adhered to two sides of the back door lock reinforcing plate 2 by an adhesive tape or the like, and then adhered to the back door outer plate 11 by the adhesive tape.

Referring to fig. 1, back door reinforcing plates 3 are provided on both sides of a back door body 1, and the back door reinforcing plates 3 are located between a back door outer panel 11 and a back door inner panel 12. Since the position of the back door reinforcing plate 3 is one of the main stress positions of the back door structure, in some embodiments, the thickness of the back door reinforcing plate 3 may be set between 2.0mm and 3.0mm. That is to say, compare prior art, the thickness of back door reinforcing plate 3 in this embodiment has bodied to further promote the structural strength of back door reinforcing plate 3 position department, and then promoted the global rigidity and the stability of back door structure.

Further, the thickness of the tailgate reinforcing plate 3 may be set between 2.4mm and 2.6mm, for example, the thickness of the tailgate reinforcing plate 3 is 2.5mm.

Referring to fig. 1, electric stay bar reinforcing plates 4 are provided on both sides of a back door body 1, and the electric stay bar reinforcing plates 4 are located between a back door outer panel 11 and a back door inner panel 12. Since the electric stay bar reinforcement plate 4 is located at another main stressed position of the back door structure, in some embodiments, the thickness of the electric stay bar reinforcement plate 4 may be set between 1.8mm and 2.5mm. That is to say, compare prior art, the thickness of electric vaulting pole reinforcing plate 4 in this embodiment has bodiness to further promote the structural strength of 4 positions departments of electric vaulting pole reinforcing plate, and then promoted the global rigidity and the stability of back door structure. For example, the thickness of the electric brace reinforcing plate 4 may be 2.0mm.

The back door structure that this embodiment provided is provided with back of the body lock reinforcing plate 2 between back of the body inner panel 12 and the back of the body planking 11, and back of the body lock reinforcing plate 2 is located the below of the indent buckling department S in back of the body 1 middle part. The both sides of back door lock reinforcing plate 2 are buckled towards back door planking 11, and the both sides of back door lock reinforcing plate 2 still set up support piece 21 and are used for being connected with back door planking 11 to further support back door planking 11. Further, the thickness of the back door reinforcing plate 3 and the thickness of the electric stay bar reinforcing plate 4 are increased. That is to say, through optimizing the mass distribution of back door structure, improved the structural durability of back door structure, and reduced low frequency rumble to a great extent.

Through a low-frequency rumbling test on the back door structure adopting the embodiment, the back door constraint mode of the back door structure of the embodiment is changed from 27.7Hz to 24.4Hz, and is avoided from the frequency working condition in 30Hz of the whole vehicle, namely, resonance is avoided, so that the back door structure constraint mode is reduced, the decibel of the rumbling is reduced to 38db, the feeling of low-frequency 'rumbling' sound brought to the ears of passengers during the running of the vehicle is relieved, and the bending rigidity of the back door structure is in a required range.

Example two

The present embodiments provide a vehicle including a tailgate structure. Referring to fig. 1 to 5, specific structures and implementation principles of the back door structure in this embodiment are the same as those of the back door structure provided in the first embodiment, and the same or similar technical effects can be brought.

The vehicle provided in this embodiment may be a passenger vehicle, a commercial vehicle, or the like, and this embodiment is not limited thereto. It is within the scope of the present embodiment to provide a vehicle having a back door structure.

Other technical features are the same as those of the first embodiment, and are not described herein again.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A back door structure is characterized by comprising a back door body and a back door lock reinforcing plate;

the backdoor body comprises a backdoor outer plate and a backdoor inner plate positioned on the inner side of the backdoor outer plate, and the middle part of the backdoor body is provided with an inward-concave bent part; the back door lock reinforcing plate is positioned between the back door outer plate and the back door inner plate and is positioned below the concave bending part;

the back door lock reinforcing plate is bent towards the direction of the back door outer plate at two ends in the width direction of the vehicle body so as to support the back door outer plate.

2. The back door structure according to claim 1, wherein the back door lock reinforcing plate is provided with supports at both ends in the vehicle body width direction, and both sides of the back door lock reinforcing plate are connected to the back door outer panel through the supports.

3. A back door structure according to claim 2, wherein the back door lock reinforcement plate is provided at both ends in the vehicle body width direction with receiving structures for receiving the support member.

4. A back door structure according to claim 3, wherein the receiving means is a receiving slot recessed away from the outer back door panel, and a portion of the support member is located in the receiving slot.

5. A back door structure according to any of claims 2 to 4, wherein the support member is an expanding gel for bonding with the outer door panel to attach the outer door panel.

6. The back door structure of claim 5, wherein the expansion glue is strip-shaped and extends along the height of the back door lock reinforcement plate.

7. A back door structure according to any of claims 1 to 4, wherein the back door body is provided with back door stiffening panels on both sides thereof, the back door stiffening panels being located between the outer back door panel and the inner back door panel;

the thickness range of the back door reinforcing plate is 2.0 mm-3.0 mm.

8. A back door structure according to claim 7, wherein the back door reinforcing plate has a thickness in the range of 2.4mm to 2.6mm.

9. A back door structure according to any of claims 1 to 4, wherein the back door body is provided with electrical brace reinforcing plates on both sides thereof, the electrical brace reinforcing plates being located between the outer back door panel and the inner back door panel;

10. A vehicle comprising a back door structure according to any of claims 1 to 9.