CN115306245A

CN115306245A - Buffer structure and vehicle

Info

Publication number: CN115306245A
Application number: CN202211034790.6A
Authority: CN
Inventors: 赵延旭; 赵云梅; 刘智勇; 李圭镐; 李国林; 徐云
Original assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Zeekr Intelligent Technology Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Zeekr Intelligent Technology Co Ltd
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2022-11-08

Abstract

The present disclosure relates to a cushion structure and a vehicle. The buffer structure comprises a main body part, a first buffer part, a second buffer part and a buffer groove. The main body portion includes a first mounting surface. The first buffer part and the second buffer part are both arranged on the first mounting surface. The first buffer part is positioned around the second buffer part. And the second buffer part is convexly arranged on the first buffer part. The buffer groove is arranged between the first buffer part and the second buffer part to increase the deformation space of the first buffer part and/or the second buffer part when being compressed. The buffer structure in this disclosure can play good buffering and restraint effect, also can avoid having great reaction force to the door because of compression load is too big to reduce the adhesion degree between buffer structure and the vehicle main part, reduce the adhesion sound when the door is opened.

Description

Buffer structure and vehicle

Technical Field

The present disclosure relates to the field of vehicle technology, and more particularly, to a buffer structure and a vehicle.

Background

The vehicle door buffer block is used as a key accessory in a vehicle door system and mainly plays a role in buffering at the moment of closing the door so as to prevent the vehicle door from shaking; when the vehicle runs, the buffer block plays an auxiliary restraining role on the vehicle door so as to reduce the spaciousness of the vehicle door.

The automobile models are influenced by factors such as the structure, the weight and the rigidity of the automobile door, the number, the arrangement position, the material hardness and the like of the used buffer blocks are different, and the structures are various. However, the buffer block is finally served by the door system, so that not only is good buffering and restraining effects achieved, but also a large reaction force on the door caused by an overlarge compression load is avoided, and the door closing speed or the unlocking sound is high.

The diameter of the contact surface of the existing common buffer block and a side wall metal plate of a vehicle is 8.5mm; when the compressed height is 1mm, the compression counterforce is 66N; when the compressed height is 2mm, the compression counterforce is 162N; when the compressed height is 3mm, the compression counterforce is 321N. When the buffer block is in a normal compression state, namely the compressed height is not more than 3mm, the average loudness of the door opening unlocking sound of the vehicle door is 42.7Sone; when the buffer block is in an over-compression state, namely the compressed height is more than 3mm and less than or equal to 5mm, the average loudness of the door opening unlocking sound of the vehicle door is 55.5Sone.

Obviously, current buffer block generally all has good shock-absorbing capacity, but corresponding also has bigger compression counter-force to lead to after closing the door for a long time, the buffering face of buffer block easily with the side wall panel beating adhesion of vehicle, make the door open the moment have great adhesion sound.

The door bumper, although simple in design and development, plays a crucial role in the overall door system.

Disclosure of Invention

The present disclosure provides a cushion structure and a vehicle to solve at least some problems in the related art.

According to a first aspect of the present disclosure, a buffer structure is provided, which includes a main body portion, a first buffer portion, a second buffer portion, and a buffer groove; the body portion includes a first mounting surface; the first buffer part and the second buffer part are arranged on the first mounting surface; the first buffer part is positioned around the second buffer part; the second buffer part is arranged on the first buffer part in a protruding mode; the buffer groove is arranged between the first buffer part and the second buffer part to increase the deformation space of the first buffer part and/or the second buffer part when being compressed.

Optionally, the buffer tank includes an outer side wall, an inner side wall and a bottom wall; the outer side wall is arranged on the side wall of the first buffer part facing the second buffer part; the inner side wall is arranged on the side wall of the second buffer part; the bottom wall is disposed on the first mounting surface.

Optionally, along the compressed direction of the first buffer part or the second buffer part, the depth of the buffer groove is greater than or equal to 2mm, and less than or equal to 4mm.

Optionally, the width of the buffer slot is greater than or equal to 1.5mm and less than or equal to 3mm along the direction that the first buffer portion points to the second buffer portion.

Optionally, a height difference between the second buffer portion and the first buffer portion is less than or equal to 3mm.

Optionally, the second buffer part includes a second buffer surface for being away from the main body part; the buffer structure further comprises a protruding part protruding from the second buffer surface.

Optionally, the protruding portion is protruded from the second buffer surface and is less than or equal to 1mm in height.

Optionally, the boss includes a third buffer surface remote from the second buffer portion; the third buffer surface is a convex cambered surface.

According to a second aspect of the present disclosure, there is provided a vehicle including a vehicle main body and a door; the vehicle door is slidably connected to the vehicle body and includes an open state for opening the vehicle body and a closed state for closing the vehicle body; the door further includes a first sidewall; the vehicle further comprises a cushioning structure as described above; the buffer structure is arranged on the first side wall; when the vehicle door is in an open state, the buffer structure is not compressed; when the vehicle door is in a closed state; the buffer structure is compressed.

Optionally, when the buffer structure is compressed, the buffer structure comprises a normal state and an overpressure state; wherein when the cushioning structure is in a normal state, the second cushioning portion is in a compressed state; when the buffer structure is in an overpressure state, the second buffer part and the first buffer part are both in a compressed state.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

the cushioning structure in the present disclosure is provided with a first cushioning portion and a second cushioning portion having a difference in height. When the vehicle door is in a normal closed state, the compressed height of the buffer structure is small, the buffer structure is in a normal state, namely only the second buffer part is in a compressed state, and the buffer area of the second buffer part is reduced compared with that of the original buffer structure, so that the overall compression amount of the buffer structure is reduced, and the compression counter force of the buffer structure is reduced; the bonding degree between the buffer structure and the vehicle main body is weakened, and the unlocking sound is small; in addition, the setting of dashpot for the deformation of second buffer portion is mostly located the dashpot, has further reduced the deformation degree of difficulty and the compression counter-force of second buffer portion, avoids the second buffer portion simultaneously under the circumstances of compressed, with vehicle body's area of contact increase, and then produces bigger unblock sound. When the vehicle door is in an unconventional closed state, the compressed height of the buffer structure is larger, and the second buffer part and the first buffer part are both in a compressed state, so that the situation that the buffer performance of the second buffer part is insufficient to cause rigid contact between the vehicle door and a vehicle main body is avoided; meanwhile, the overall compression amount of the buffer structure is reduced compared with that of the original buffer block, so that the compression counter force of the buffer structure is reduced; the bonding degree between the buffer structure and the vehicle body is weakened, and the unlocking sound is reduced; in addition, the setting of dashpot for the deformation majority of second buffering portion and first buffering portion all is located the dashpot, has further reduced the deformation degree of difficulty and the compression counter-force of first buffering portion and second buffering portion.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

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.

FIG. 1 is a first schematic structural diagram of a buffer structure in an exemplary embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a buffer structure in an exemplary embodiment of the present disclosure;

FIG. 3 is a cross-sectional view of a cushioning structure in an exemplary embodiment of the present disclosure.

Description of the reference numerals: 1. a main body portion; 2. a first buffer section; 3. a second buffer portion; 4. a buffer tank; 10. a first mounting surface; 11. a second mounting surface; 40. an outer sidewall; 41. an inner sidewall; 42. a bottom wall; 20. a first buffer surface; 30. a second buffer surface; 5. a boss portion; 50. a third buffer surface; 6. an installation part; 7. a neck portion; 8. a soft lip.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the disclosure, as detailed in the appended claims.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "first," "second," and the like, as used in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of two. "plurality" or "a number" means two or more. Unless otherwise indicated, "front," "back," "lower," and/or "upper," and the like are for convenience of description, and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

The terminology used in the disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

A vehicle includes a vehicle body, a door, and a cushion structure as shown in fig. 1-3. The vehicle door is slidably connected to the vehicle body and includes an open state that opens the vehicle body and a closed state that closes the vehicle body. The door also includes a first sidewall. The buffer structure is arranged on the first side wall. When the door is in the open state, the cushioning structure is uncompressed. When the door is in the closed position. The buffer structure is compressed.

The vehicle may include one or more bumper structures. The present disclosure is not so limited. In some embodiments, the vehicle includes three bumper structures. The three buffer structures are uniformly distributed along the first side wall of the vehicle door and are respectively positioned in an upper area, a middle area and a lower area of the first side wall.

The switching between the opening state and the closing state of the vehicle door can be realized through an electric switching mode or a manual switching mode. The present disclosure is not so limited.

In some embodiments, the cushioning structure includes a main body portion 1, a first cushioning portion 2, a second cushioning portion 3, a cushioning channel 4, and an attachment portion 6. The body portion 1 includes a first mounting surface 10 and an oppositely disposed second mounting surface 11. The first buffer portion 2 and the second buffer portion 3 are both provided on the first mounting surface 10. The first buffer part 2 is located around the second buffer part 3. And the second buffer portion 3 is protrudingly disposed on the first buffer portion 2. The buffer groove 4 is provided between the first buffer part 2 and the second buffer part 3 to increase a deformation space of the first buffer part 2 and/or the second buffer part 3 when being compressed. The mounting portion 6 is provided on the second mounting surface 11. The cushion structure is fixedly mounted to the first side wall of the door via the mounting portion 6.

When the vehicle door is in a normal closed state, the compressed height of the buffer structure mainly comprises three types of 1mm, 1.5mm and 2mm according to different vehicle types and design requirements. And when the vehicle door is in an abnormal closed state, the compressed height of the buffer structure can reach 4-5mm. Wherein the unconventional closing state of the vehicle door mainly comprises closing the vehicle door with large strength and driving the vehicle on a downhill road. Therefore, the cushioning structure in the present disclosure provides the first cushioning portion 2 and the second cushioning portion 3 having a height difference. When the vehicle door is in a normal closed state, the compressed height of the buffer structure is small, the buffer structure is in a normal state, namely, only the second buffer part 3 is in a compressed state, and the buffer area of the second buffer part 3 is reduced compared with that of the original buffer structure, so that the overall compression amount of the buffer structure is reduced, and the compression counter force of the buffer structure is reduced. The degree of adhesion between the cushion structure and the vehicle body becomes weak, and the unlocking sound is small. In addition, the setting of dashpot 4 for the deformation majority of second buffer portion 3 all is located dashpot 4, has further reduced the deformation degree of difficulty and the compression counter-force of second buffer portion 3, avoids second buffer portion 3 to increase with the area of contact of vehicle body simultaneously under the circumstances of compressed, and then produces bigger unblock sound. When the vehicle door is in an abnormal closed state, the compressed height of the buffer structure is larger, and the second buffer part 3 and the first buffer part 2 are both in a compressed state, so that the situation that the buffer performance of the second buffer part 3 is insufficient to cause rigid contact between the vehicle door and a vehicle body is avoided. Meanwhile, the overall compression amount of the buffer structure is reduced compared with that of the original buffer block, and thus the compression counter force of the buffer structure is reduced. The degree of adhesion between the cushion structure and the vehicle body becomes weak, and the unlocking sound is reduced. In addition, the setting of dashpot 4 for the deformation of second buffer portion 3 and first buffer portion 2 is mostly located dashpot 4, has further reduced the deformation degree of difficulty and the compression counter-force of first buffer portion 2 and second buffer portion 3.

The mounting portion 6 may be connected to the first side wall of the door by screw fastening, snap fastening or other fastening means. The present disclosure is not so limited. With continued reference to fig. 1 and 3, the bumper further includes a neck 7 disposed between the mounting portion 6 and the second mounting surface 11; the neck portion 7 is cylindrical, and the mounting portion 6 is inverted cone-shaped; the neck portion 7 has a diameter smaller than the maximum diameter of the mounting portion 6. Through so setting up, when the installation buffer block, can fill in installation department 6 in the mounting hole of first lateral wall by the diameter to it is poor through the diameter between 7 and the installation department of neck, thereby with buffering portion joint to in the mounting hole.

In some embodiments, the bumper further comprises a soft lip 8 protrudingly provided on the second mounting surface 11; the soft lip 8 is located at the edge of the second mounting surface 11 and encloses a circle. By the arrangement, firstly, a seal can be formed between the soft lip edge 8 and the first side wall, and impurities can be prevented from entering between the second mounting surface 11 and the first side wall; and manufacturing and matching tolerance between the buffer block and the mounting hole on the first side wall can be ignored.

In some embodiments, the first buffer 2 is a ring-shaped structure and the second buffer 3 is a cylindrical structure. The buffer tank 4 includes an outer side wall 40, an inner side wall 41, and a bottom wall 42. The outer side wall 40 is provided on a side wall of the first cushioning portion 2 facing the second cushioning portion 3. The inner wall 41 is provided on a side wall of the second buffer portion 3. The bottom wall 42 is provided on the first mounting surface 10. The buffer grooves 4 in the present disclosure form a closed loop, and surround the second buffer portion 3 in all directions, so as to provide the largest deformation space for the second buffer portion 3, thereby further reducing the compression reaction force of the buffer structure.

It should be noted that the buffer groove 4 in the present disclosure may be a closed circular groove or a closed polygonal groove. The present disclosure is not so limited.

As an alternative embodiment, the depth of the buffer groove 4 in the compressed direction of the first buffer part 2 or the second buffer part 3 is 2mm or more and 4mm or less. The buffer structure in this disclosure mainly adopts the rubber material to through moulding plastics and mould cooperation shaping, like this, still need through the step from the mould drawing of patterns after the buffer structure shaping. Therefore, if the depth of the buffer groove 4 is more than 4mm, it may cause difficulty in demolding the buffer module. Meanwhile, the buffer groove 4 also has the function of providing a deformation space for the second buffer part 3 when being compressed, so that if the depth of the buffer groove 4 is less than 2mm, the deformation space provided by the buffer groove 4 is limited, and further the reduction amount of the compression reaction force of the buffer structure is insufficient, the second buffer part 3 still possibly generates adhesion with the vehicle body, and further generates a large adhesion sound.

As an alternative embodiment, the width of the buffer groove 4 is greater than or equal to 1.5mm and less than or equal to 3mm along the direction from the first buffer part 2 to the second buffer part 3. The cushioning structure of the present disclosure is primarily mounted on the first side wall of the vehicle door, and the maximum diameter of the cushioning structure obviously cannot exceed the horizontal width of the first side wall, i.e., the overall compression area of the cushioning structure is effective. Therefore, if the width of the buffer groove 4 is larger than 3mm, the compressed area of the first buffer part 2 and the second buffer part 3 becomes small, and the first buffer part 2 and the second buffer part 3 cannot secure the basic buffer performance. Meanwhile, the buffer slot 4 also has the function of providing a deformation space for the second buffer part 3 when being compressed, so that if the width of the buffer slot 4 is smaller than 1.5mm, the deformation space provided by the buffer slot 4 is limited, and further the reduction amount of the compression reaction force of the buffer structure is insufficient, the second buffer part 3 is still likely to be bonded with the vehicle body, and further a large bonding sound is generated.

In some embodiments, the difference in height between the second cushioning portion 3 and the first cushioning portion 2 is equal to or greater than 3mm. The cushion structure in the present disclosure allows the cushioning performance of the cushion structure to be provided only by the second cushioning portion 3 when the vehicle door is in the normally closed state by defining the height difference between the second cushioning portion 3 and the first cushioning portion 2. When the vehicle door is in an unconventional closed state, the buffering performance of the buffering structure is provided by the first buffering part 2 and the second buffering part 3 together, so that the buffering structure can play a good buffering effect and can also ensure good door opening sound quality.

In some embodiments, the second cushioning portion 3 includes a second cushioning face 30 for moving away from the main body portion 1. The buffer structure further comprises a protrusion 5 protruding from the second buffer surface 30. The second buffer surface 30 is a contact surface contacting with the vehicle body and is easily adhered to the vehicle body, so that when the door is opened, the buffer structure is stretched until the second buffer surface 30 is separated from the vehicle body, and at the moment of separation, the buffer structure generates a large adhering sound. Bellying 5 in this disclosure is for setting up the arch at second buffering face 30, and when buffer structure was compressed, bellying 5 can avoid second buffering face 30 to contact with vehicle body completely for still leave the air between second buffering face 30 and the vehicle body, and then the reduction of very big degree the adhesion force between second buffering face 30 and the vehicle body, thereby adhesion sound when having reduced the unblock.

As an alternative embodiment, the height of the protrusion 5 protruding from the second buffer surface 30 is less than or equal to 1mm. The main function of the boss 5 in the present disclosure is to reduce the sticking sound, and there is little cushioning effect. While the compressed height of the cushioning structure is fixed, such as 1mm, 1.5mm, 2mm, etc., when the door is in the normally closed state, the height of the projection 5 is less than or equal to 1mm in order to allow the cushioning structure to also function as a cushion.

As an alternative embodiment, the projection 5 comprises a third cushioning surface 50 remote from the second cushioning portion 3. The third cushioning surface 50 is a convex curved surface. This is because there are installation tolerances between the door and the vehicle body, and there are also installation tolerances when the cushion structure is installed on the vehicle body, which may result in the cushion structure not being perfectly aligned with the vehicle body, and therefore. The cushion structure in the present disclosure can eliminate the influence of the above-described mounting tolerance by providing the arc surface in the third cushion surface 50 that first comes into contact with the vehicle body.

With continued reference to fig. 1-3, in some embodiments, relevant features of the buffer structure are as follows:

the protruding portion 5 is a hemispherical structure, and the protruding portion 5 is protruded from the second buffer surface 30 to a height of 0.5mm.

The second buffer portion 3 is of a cylindrical structure, the diameter of the second buffer surface 30 is 5.5mm, and the height of the second buffer portion 3 is 6mm.

The first buffer part 2 has a height of 3mm and a width of 3mm.

The buffer tank 4 had a depth of 3mm and a width of 2.2mm.

The spacing between the second mounting surface 11 and the second cushioning surface 30 is 15mm.

However, when the height of the cushion structure in the above embodiment is 1mm, the reaction force of compression is 18N. When it is compressed to a height of 2mm, its compressive reaction force is 35N. When it is compressed to a height of 3mm, its compressive reaction force is 52N. When the compressed height is 4mm, the compression counter force is 118N. When it is compressed to a height of 5mm, its compressive reaction force is 234N. As can be seen, the compression reaction force of the buffer structure in the above embodiment is significantly reduced compared to the conventional buffer block.

When the buffer structure in the above embodiment is in the normal compression state, that is, the compressed height is not more than 3mm, the average loudness of the door opening unlock sound of the vehicle door is 35.9Sone. When the buffer structure in the above embodiment is in the over-compressed state, that is, when the compressed height is greater than 3mm and not greater than 5mm, the average loudness of the door opening unlock sound of the vehicle door is 37.9 tone. Therefore, when the vehicle door is in an abnormal closed state, the blocking sound at the opening moment of the vehicle door is obviously reduced.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A buffer structure is characterized by comprising a main body part, a first buffer part, a second buffer part and a buffer groove; the body portion includes a first mounting surface; the first buffer part and the second buffer part are arranged on the first mounting surface; the first buffer part is positioned around the second buffer part; the second buffer part is arranged on the first buffer part in a protruding mode; the buffer groove is arranged between the first buffer part and the second buffer part to increase the deformation space of the first buffer part and/or the second buffer part when being compressed.

2. The cushioning structure of claim 1, wherein the cushioning channel comprises an outer side wall, an inner side wall, and a bottom wall; the outer side wall is arranged on the side wall of the first buffer part facing the second buffer part; the inner side wall is arranged on the side wall of the second buffer part; the bottom wall is disposed on the first mounting surface.

3. The cushion structure according to claim 1, wherein a depth of the cushion groove in a compressed direction of the first or second cushion portion is 2mm or more and 4mm or less.

4. The cushioning structure according to claim 1, characterized in that the width of the cushioning groove is 1.5mm or more and 3mm or less in a direction in which the first cushioning portion is directed toward the second cushioning portion.

5. The cushioning structure of claim 1, characterized in that the difference in height between the second cushioning portion and the first cushioning portion is less than or equal to 3mm.

6. The cushioning structure of claim 1, characterized in that the second cushioning portion comprises a second cushioning surface for moving away from the main body portion; the buffer structure further comprises a protruding part protruding from the second buffer surface.

7. The cushioning structure of claim 6, wherein the protrusion is provided at a height of the second cushioning surface less than or equal to 1mm.

8. The cushioning structure of claim 6, wherein the raised portion comprises a third cushioning surface distal from the second cushioning portion; the third buffer surface is a convex cambered surface.

9. A vehicle includes a vehicle main body and a door; the vehicle door is connected to the vehicle body in a sliding manner and comprises an opening state for opening the vehicle body and a closing state for closing the vehicle body; the door further includes a first sidewall; characterized in that the vehicle further comprises a buffer structure according to any one of claims 1-8; the buffer structure is arranged on the first side wall; when the vehicle door is in an open state, the buffer structure is not compressed; when the vehicle door is in a closed state; the buffer structure is compressed.

10. The vehicle of claim 9, characterized in that the cushioning structure comprises a normal condition and an overpressure condition when the cushioning structure is compressed; wherein when the cushioning structure is in a normal state, the second cushioning portion is in a compressed state; when the buffer structure is in an overpressure state, the second buffer part and the first buffer part are both in a compressed state.