Automobile back door and automobile

Abstract

The automobile back door comprises a back door outer plate, a back door inner plate, a first reinforcing plate, a second reinforcing plate and a reinforcing support, and the back door outer plate comprises an upper outer plate and a lower outer plate which are connected with each other; the back door inner plate is connected with the back door outer plate; the first reinforcing plates are clamped between the upper outer plate and the back door inner plate, hinge mounting positions are formed on the left side and the right side of the automobile back door, and the two first reinforcing plates correspond to the two hinge mounting positions; the two second reinforcing plates are arranged at intervals in the left-right direction, the second reinforcing plates are connected with the upper outer plate and the lower outer plate, supporting rod mounting positions are formed on the left side and the right side of the automobile back door, and the two second reinforcing plates correspond to the two supporting rod mounting positions; a passing opening is formed in the position, corresponding to the back door lock, of the back door inner plate. The reinforcing support penetrates through the passing opening to be connected with the lower outer plate and the back door inner plate. The rigidity of the automobile back door is improved, and vibration of the automobile back door in the running process is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle parts technical field, especially a kind of automobile back door and automobile. BACKGROUND

[0002] The structural design of automobile back door has great influence on back door performance, the structure of existing automobile back door is different for each vehicle model, but the whole is composed of inner plate (close to vehicle interior) and outer plate (close to vehicle exterior), wherein the inner plate is mostly formed by one-piece stamping, the outer plate is also formed by one-piece stamping, or formed by splicing upper outer plate and lower outer plate. The inner plate and outer plate are assembled to form automobile back door.

[0003] For the vehicle model formed by splicing upper outer plate and lower outer plate, the width formed by upper outer plate and inner plate is less than the width formed by lower outer plate and inner plate, so that the rigidity of upper part and lower part of automobile back door is different, and the rigidity of upper part is weaker than that of lower part.

[0004] In addition, a large cavity is formed between the inner plate and the outer plate, and the inner plate and the outer plate are lack of fixation, which causes vibration of the inner plate and the lower outer plate during vehicle driving. Further, it affects the NVH performance of the vehicle. SUMMARY

[0005] The main purpose of the utility model is to provide an automobile back door, theme two and theme three, to solve the problem of poor rigidity of the upper part of the existing automobile back door and easy vibration.

[0006] To achieve the above-mentioned purpose, the automobile back door provided by the utility model comprises:

[0007] The back door outer plate comprises an upper outer plate and a lower outer plate connected to each other;

[0008] The back door inner plate is connected to the back door outer plate, and a cavity is formed between the back door inner plate and the back door outer plate;

[0009] The first reinforcing plate is two in number, and the two first reinforcing plates are arranged in the left-right direction, the first reinforcing plate is arranged between the upper outer plate and the back door inner plate, the left and right sides of the automobile back door are formed with hinge mounting positions, and the two first reinforcing plates are arranged corresponding to the two hinge mounting positions;

[0010] The second reinforcing plate is two in number, and the two second reinforcing plates are arranged in the left-right direction, the second reinforcing plate is located in the cavity, and the second reinforcing plate is connected to the upper outer plate and the lower outer plate, the left and right sides of the automobile back door are formed with strut mounting positions, and the two second reinforcing plates are arranged corresponding to the two strut mounting positions;

[0011] The reinforcing support is provided with a through hole corresponding to the position of the back door lock, and the reinforcing support is connected to the lower outer plate and the back door inner plate through the through hole.

[0012] In an embodiment, the first reinforcing plate comprises a first plate body and a first extension part connected to each other, the first plate body is fixed to the back door inner plate, and the first extension part is located outside the first plate body and extends along the circumference of the first plate body.

[0013] In an embodiment, the second reinforcing plate comprises a second plate body and a second extension part connected to each other, the second plate body is fixed to the back door inner plate, and the second extension part is connected to the side opposite to the corresponding two second plate bodies.

[0014] In an embodiment, a first bending part is formed between the first plate body and the first extension part, a second bending part is formed between the second plate body and the second extension part, and the second extension part is connected to the side opposite to the corresponding two second plate bodies. In an embodiment, the reinforcing support comprises a first support and a second support connected to each other, the first support is arranged in the through hole and fixed to the through hole, and the second support extends into the cavity through the through hole and is connected to the back door outer plate.

[0015] In an embodiment, the back door inner plate comprises an inner plate body and two side reinforcing plates, the two side reinforcing plates are arranged on the two sides of the inner plate body, and the side reinforcing plates are fixed to the lower outer plate.

[0016] In an embodiment, the inner plate body is recessed inward to form a groove, the shape of the side reinforcing plate is matched with the shape of the groove, and the side reinforcing plate extends into the corresponding groove and abuts against the inner plate body; the two side reinforcing plates are arranged and abut against the two second reinforcing plates correspondingly.

[0017] In an embodiment, the side reinforcing plate and the inner plate body are both stamping forming parts.

[0018] In an embodiment, the back door outer plate and the back door inner plate are both sheet metal parts, and a resin decorative plate is arranged on the side of the lower outer plate away from the back door inner plate.

[0019] The utility model also provides a kind of automobile, and the automobile applies the automobile back door described above.

[0020] The utility model discloses a technical scheme, the automobile back door includes back door outer plate, back door inner plate, first reinforcing plate, second reinforcing plate and reinforcing support, and the back door outer plate includes the upper outer plate and lower outer plate who connects each other, and the number of first reinforcing plate is two, and the cavity is formed between back door outer plate and back door inner plate, can be convenient for the installation of first reinforcing plate. Two first reinforcing plates are correspondingly arranged with two hinge installation positions, and the structural strength of the automobile back door can be increased by setting first reinforcing plate in the hinge installation position. The number of second reinforcing plate is two, and second reinforcing plate connects upper outer plate and lower outer plate, and the structural strength between upper outer plate and lower outer plate can be increased, wherein, two second reinforcing plates are arranged with two support rod installation positions, and the structural strength of the automobile back door can be further increased by setting second reinforcing plate in the support rod installation position. First reinforcing plate is located between upper outer plate and back door inner plate, and second reinforcing plate is located at the junction of upper outer plate and lower outer plate, can effectively increase the rigidity of the upper part of the automobile back door, and first reinforcing plate and second reinforcing plate can also play the role of connecting between back door inner plate and back door outer plate, therefore can reduce the vibration between back door inner plate and back door outer plate. The back door inner plate is provided with a through hole at the position corresponding to the back door lock, and the reinforcing support is connected with the lower outer plate and the back door inner plate through the through hole. By setting the reinforcing support at the position corresponding to the back door lock of the back door inner plate, on the one hand, the back door lock is reinforced more stably, and on the other hand, the reinforcing support increases the connection strength of the back door inner plate and the back door outer plate at the cavity position, avoiding the noise caused by vibration when the vehicle is running due to the lack of fixation of the outer plate at the cavity position. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the structure shown in these drawings without creative labor for those skilled in the art.

[0022] Figure 1 It is a three-dimensional structure schematic diagram of an embodiment of the automobile back door provided by the utility model;

[0023] Figure 2 It is a three-dimensional structure schematic diagram of an embodiment of the automobile back door provided by the utility model; Figure 1

[0024] Figure 3 It is a three-dimensional structure schematic diagram of an embodiment of the automobile back door provided by the utility model; Figure 1

[0025] Figure 4 It is an explosion structure schematic diagram of an embodiment of the automobile back door provided by the utility model; Figure 3

[0026] ​​​Figure 5 Structure diagram of a first reinforcing plate according to an embodiment of the present application;

[0027] Figure 6 Structure diagram of a second reinforcing plate according to an embodiment of the present application;

[0028] Figure 7 Structure diagram of a reinforcing bracket according to an embodiment of the present application.

[0029] Explanation of reference numerals:

[0030] 100, automobile back door; 1, back door outer plate; 2, back door inner plate; 3, first reinforcing plate; 4, second reinforcing plate; 5, reinforcing bracket; 11, upper outer plate; 12, lower outer plate; 13, cavity; 6, through opening; 31, first plate body; 32, first extension; 41, second plate body; 42, second extension; 33, first bending portion; 43, second bending portion; 51, first bracket; 52, second bracket; 21, inner plate body; 22, side reinforcing plate; 211, groove.

[0031] The realization, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0033] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture, and if the specific posture changes, the directional indications will also change accordingly.

[0034] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the same or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.

[0035] The utility model provides a kind of automobile back door 100 and automobile.

[0036] Please refer to Figures 1 to 4 , automobile back door 100 includes back door outer plate 1, back door inner plate 2, first reinforcing plate 3, second reinforcing plate 4 and reinforcing support 5, back door outer plate 1 includes mutually connected upper outer plate 11 and lower outer plate 12;Back door inner plate 2 connects back door outer plate 1, and the cavity 13 between back door inner plate 2 and back door outer plate 1 is formed;The number of first reinforcing plate 3 is two, two first reinforcing plate 3 is spaced apart along left-right direction, and first reinforcing plate 3 is clamped between upper outer plate 11 and back door inner plate 2, and the left and right sides of automobile back door 100 are formed hinge installation position, and two first reinforcing plate 3 are correspondingly arranged with two hinge installation positions;The number of second reinforcing plate 4 is two, two second reinforcing plate 4 is spaced apart along left-right direction, and second reinforcing plate 4 is located in cavity 13, and second reinforcing plate 4 connects upper outer plate 11 and lower outer plate 12, and the left and right sides of automobile back door 100 are formed strut installation position, and two second reinforcing plate 4 are correspondingly arranged with two strut installation positions;Back door inner plate 2 is provided with the mouth 6 of passing through the position corresponding to back door lock, and reinforcing support 5 is connected with lower outer plate 12 and back door inner plate 2 by passing through the mouth 6 of passing through.

[0037] The technical scheme of the embodiment comprises the following steps: the automobile back door 100 comprises a back door outer plate 1, a back door inner plate 2, a first reinforcing plate 3, a second reinforcing plate 4 and a reinforcing support 5, wherein the back door outer plate 1 comprises an upper outer plate 11 and a lower outer plate 12 which are connected with each other, the number of the first reinforcing plate 3 is two, and the two first reinforcing plates 3 are arranged in the left-right direction, the left-right direction is the width direction of the automobile back door 100, and the cavity 13 is formed between the back door outer plate 1 and the back door inner plate 2, which can facilitate the installation of the first reinforcing plate 3. The two first reinforcing plates 3 are arranged corresponding to the two hinge mounting positions, and the structure strength of the automobile back door 100 can be increased by arranging the first reinforcing plate 3 at the hinge mounting position because the hinge mounting position bears a large force. The number of the second reinforcing plate 4 is two, and the two second reinforcing plates 4 are arranged in the left-right direction, the second reinforcing plate 4 connects the upper outer plate 11 and the lower outer plate 12, and the structure strength between the upper outer plate 11 and the lower outer plate 12 can be increased, wherein the two second reinforcing plates 4 are arranged corresponding to the two support rod mounting positions, and the structure strength of the automobile back door 100 can be further increased by arranging the second reinforcing plate 4 at the support rod mounting position because the support rod mounting position bears a large force. In addition, the first reinforcing plate 3 is arranged between the upper outer plate 11 and the back door inner plate 2, and the second reinforcing plate 4 is arranged at the connection position of the upper outer plate 11 and the lower outer plate 12, so that the rigidity of the upper part of the automobile back door 100 can be effectively increased by arranging the first reinforcing plate 3 and the second reinforcing plate 4, and the first reinforcing plate 3 and the second reinforcing plate 4 can also play a role in connecting the back door inner plate 2 and the back door outer plate 1, so that the vibration between the back door inner plate 2 and the back door outer plate 1 can be reduced. In addition, the back door inner plate 2 is provided with the through hole 6 corresponding to the position of the back door lock, and the reinforcing support 5 passes through the through hole 6 to connect the lower outer plate 12 and the back door inner plate 2. By arranging the reinforcing support 5 at the position of the back door lock of the back door inner plate 2, on the one hand, the back door lock can be more stable, and on the other hand, the reinforcing support 5 can increase the connection strength of the back door inner plate 2 and the back door outer plate 1 at the position of the cavity 13, so that the noise caused by vibration during driving of the vehicle due to the lack of fixation of the outer plate at the position of the cavity 13 can be avoided, and the NVH performance of the back door is improved.

[0038] In the above embodiment, the mounting position of the hinge of the automobile back door 100 and the automobile support rod can be changed according to the model of the automobile, which is not limited in the specification.

[0039] Based on the above embodiment, please refer to Figure 5, the first reinforcing plate 3 comprises a first plate body 31 and a first extension 32 connected with each other, the first plate body 31 is fixed to the back door inner plate 2; the first extension 32 is located at the outer side of the first plate body 31 and extends along the circumference of the first plate body 31. In this embodiment, the fixing mode of the first plate body 31 and the back door inner plate 2 can be welding, which can increase the installation stability of the first reinforcing plate 3, and the first extension 32 is arranged at the outer side of the first plate body 31, wherein the outer side of the first plate body 31 is the side close to the outer edge of the back door 5 plate Figure 5 The first plate body 31 is close to the two sides of the outer edge of the back door 5 plate, by arranging the first extension 32, the structure of the first reinforcing plate 3 can be extended, the area with narrow upper part and low rigidity of the automobile back door 100 is reinforced, thereby effectively improving the overall structural strength of the automobile back door 100.

[0040] Further, please refer to Figure 6 The second reinforcing plate 4 comprises a second plate body 41 and a second extension 42 connected with each other, the second plate body 41 is fixed to the back door inner plate 2; the second extension 42 is connected to the side opposite to the corresponding two second plate bodies 41. In this embodiment, the fixing mode of the second plate body 41 and the back door inner plate 2 can be welding, which can increase the installation stability of the second reinforcing plate 4, the side opposite to the two second reinforcing plates 4 is the left and right sides of the automobile back door 100, by arranging the second extension 42, the structure of the second reinforcing plate 4 can be extended. Further, the area with narrow upper part and low rigidity of the automobile back door 100 is reinforced. By arranging the first extension 32 and the second extension 42, the structural strength of the upper part of the automobile back door 100 is increased without increasing the thickness of the first reinforcing plate 3 and the second reinforcing plate 4.

[0041] In an embodiment, a first bending portion 33 is formed between the first plate body 31 and the first extension 32; a second bending portion 43 is formed between the second plate body 41 and the second extension 42. In this embodiment, the first bending portion 33 is formed between the first plate body 31 and the first extension 32 to increase the rigidity of the first reinforcing plate 3. The second bending portion 43 is formed between the second plate body 41 and the second extension 42 to increase the rigidity of the second reinforcing plate 4, the positions corresponding to the first bending portion 33 and the second bending portion 43 of the back door inner plate 2 form a first protrusion and a second protrusion respectively. Wherein the first bending portion 33 cooperates with the first protrusion, and the second bending portion 43 cooperates with the second protrusion, which can effectively enhance the local rigidity of the back door inner plate 2, thereby dispersing stress and avoiding stress concentration, thereby improving the overall strength of the automobile back door 100.

[0042] In an embodiment, please refer to Figure 7The reinforcing support 5 comprises a first support 51 and a second support 52 connected with each other, the first support 51 is arranged at the through hole 6 and fixed with the through hole 6, and the second support 52 extends into the cavity through the through hole 6 and is connected with the back door outer plate 1. In the embodiment, the reinforcing support 5 is arranged at the position where the back door lock is located, and the reinforcing support 5 comprises the first support 51 and the second support 52, the first support 51 extends through the through hole 6 and is connected with the back door inner plate 2 by spot gluing, and the second support 52 extends through the through hole arranged on the back door inner plate 2 and passes through the cavity 13 between the back door inner plate 2 and the back door outer plate 1 to be connected with the back door outer plate 1 by spot gluing. In the embodiment, by arranging the first support 51 and the second support 52, on the one hand, the back door lock can be reinforced more stably, and on the other hand, the first support 51 connected with the back door outer plate 1 improves the connection strength of the back door outer plate 1 at the position of the cavity 13 and the back door inner plate 2, so that the noise caused by vibration of the outer plate due to lack of fixation at the position of the cavity 13 during vehicle driving is avoided, and the NVH performance of the back door is improved.

[0043] In an embodiment, the back door inner plate 2 comprises an inner plate body 21 and two side reinforcing plates 22 arranged on two sides of the inner plate body 21, and the side reinforcing plates 22 are fixed to the lower outer plate 12. In the embodiment, due to the wide width of the lower part of the back door, the depth of the back plate is deep, that is, the width of the two sides of the back door inner plate 2 is wide, and the back door inner plate 2 is formed by stamping. During the stamping forming process of the back door inner plate 2, the stamping depth is based on the position where the width of the side of the back door inner plate 2 is the widest, which causes the tip part on both sides of the back door inner plate 2 to wrinkle during stamping. In the embodiment, the side reinforcing plates 22 are arranged on both sides of the back door inner plate 2 respectively, and the side reinforcing plates 22 are fixed to the lower outer plate 12 by fastening bolts, so as to prevent the side surfaces of the back door inner plate 2 from wrinkling.

[0044] In other embodiments, the side reinforcing plates 22 can also be installed on the lower outer plate 12 by screwing or other methods.

[0045] Based on the above embodiment, the inner plate body 21 is recessed inward to form a groove 211, the shape of the side reinforcing plate 22 matches the shape of the groove 211, and the side reinforcing plate 22 extends into the corresponding groove 211 and abuts against the inner plate body 21; and the two side reinforcing plates 22 are arranged and abut against the two second reinforcing plates 4 correspondingly. In the embodiment, by matching the side reinforcing plate 22 with the groove 211, the overall rigidity and strength of the back door can be significantly improved, and by arranging the groove 211 on the inner plate body 21, the installation and positioning of the side reinforcing plate 22 can be facilitated. The two side reinforcing plates 22 are arranged and abut against the two second reinforcing plates 4 correspondingly, which further increases the structural strength of the back door 100.

[0046] In an embodiment, the side reinforcing plate 22 and the inner plate body 21 are both stamping forming parts. In this embodiment, wrinkles on both sides of the back door inner plate 2 can be effectively avoided by stamping forming the side reinforcing plate 22 and the inner plate body 21 respectively. The connection between the side reinforcing plate 22 and the inner plate body 21 in this embodiment is also folded, which can facilitate the gluing of the side reinforcing plate 22 and the inner plate body 21.

[0047] In an embodiment, the back door outer plate 1 and the back door inner plate 2 are both sheet metal parts, and the lower outer plate 12 is provided with a resin trim plate on the side away from the back door inner plate 2. In this embodiment, the back door outer plate 1 and the back door inner plate 2 made of sheet metal have high structural strength. The resin trim plate can achieve a more diverse appearance. In this embodiment, since the lower part of the automobile back door 100 is relatively wide, the lower part of the back door outer plate 1 can be designed to be concave to the back door inner plate 2 or relatively thin, and then the resin trim plate is installed on the side of the lower part of the back door outer plate 1 away from the back door inner plate 2, so that the resin trim plate serves as the outer surface of the automobile back door 100, and thus a more diverse appearance can be achieved while ensuring sufficient structural strength of the automobile back door 100.

[0048] The utility model also proposes a kind of automobile, and automobile applies above-mentioned automobile back door 100. Since the present automobile adopts all technical solutions of above-mentioned all embodiments, at least has all beneficial effects brought by the technical scheme of above-mentioned embodiment, here is not repeated.

[0049] The above is only exemplary embodiment of the utility model, and not therefore limit the patent range of the utility model, is made equivalent structure transformation under the technical concept of the utility model in the utility model specification and attached drawing contents, or directly / indirectly applied in other related technical fields all include in the patent protection range of the utility model.

Claims

1. A rear hatch for a vehicle, characterized in that The application relates to an automobile back door. The back door outer plate comprises an upper outer plate and a lower outer plate connected with each other. The back door inner plate is connected with the back door outer plate, and a cavity is formed between the back door inner plate and the back door outer plate. Two first reinforcing plates are arranged in the left-right direction and are clamped between the upper outer plate and the back door inner plate. Two second reinforcing plates are arranged in the left-right direction and are arranged in the cavity. A reinforcing support is arranged through a through hole of the back door inner plate corresponding to the back door lock.

2. The vehicle back door according to claim 1, wherein The first reinforcing plate comprises a first plate body and a first extension part connected with each other.

3. The vehicle back door according to claim 2, wherein The first plate body is fixed to the back door inner plate.

4. The vehicle back door according to claim 3, wherein The first extension part is arranged outside the first plate body and extends along the circumference of the first plate body.

5. The vehicle back door according to claim 1, wherein The second reinforcing plate comprises a second plate body and a second extension part connected with each other.

6. The vehicle back door according to claim 1, wherein The second plate body is fixed to the back door inner plate.

7. The vehicle back door according to claim 6, wherein The second extension part is connected to the opposite side of the corresponding two second plate bodies.

8. The vehicle back door according to claim 6, wherein The first plate body and the first extension part form a first bending part.

9. The rear door according to any one of claims 1 to 8, wherein The second plate body and the second extension part form a second bending part.

10. An automobile characterized by comprising: The reinforcing support comprises a first support and a second support connected with each other. The first support is arranged in the through hole and is fixed to the through hole. The second support is arranged in the cavity and is connected with the back door outer plate. The back door inner plate comprises an inner plate body and two side reinforcing plates. The side reinforcing plates are arranged on the two sides of the inner plate body. The side reinforcing plates are fixed to the lower outer plate. The inner plate body is recessed inward to form a groove. The side reinforcing plates are matched with the shape of the groove. The side reinforcing plates are arranged in the groove and are in abutment with the inner plate body. The side reinforcing plates and the inner plate body are stamping parts. The back door outer plate and the back door inner plate are metal parts. The lower outer plate is provided with a resin decorative plate. The automobile is provided with the back door.

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