阅读说明：本技术 用于尾门驱动系统的阻尼器、尾门驱动系统及汽车 (Damper for tail gate driving system, tail gate driving system and automobile ) 是由 包友霞 于 2020-07-28 设计创作，主要内容包括：本公开提供了一种用于尾门驱动系统的阻尼器,包括：两个以上的第一垫片；至少一个第二垫片,第二垫片设置在两个第一垫片之间且与该两个第一垫片接触；以及压力提供部,压力提供部用于向两个以上的第一垫片以及至少一个第二垫片施加压力,使得当第二垫片被驱动以相对于第一垫片转动时,第一垫片与第二垫片之间产生摩擦力。本公开还提供了尾门驱动系统以及汽车。(The present disclosure provides a damper for a tailgate drive system, comprising: two or more first spacers; at least one second gasket disposed between and in contact with the two first gaskets; and a pressure providing part for applying pressure to the two or more first pads and the at least one second pad so that a frictional force is generated between the first pads and the second pads when the second pads are driven to rotate relative to the first pads. The disclosure also provides a tailgate driving system and an automobile.)

1. A damper for a tailgate drive system, comprising:

two or more first spacers;

at least one second gasket disposed between and in contact with the two first gaskets; and

a pressure providing part for applying pressure to the two or more first pads and the at least one second pad such that a frictional force is generated between the first pads and the second pads when the second pads are driven to rotate relative to the first pads.

2. The damper for a tailgate drive system, according to claim 1, characterized in that said second gasket has a second gasket through hole which can be passed through by a drive shaft other than the damper, said second gasket being driven to rotate by the rotating action of said drive shaft.

3. The damper for a tailgate drive system, according to claim 2, characterized in that said first gasket has a first gasket through hole that is passable by said drive shaft outside the damper, said first gasket not being driven by the rotational action of said drive shaft.

4. The damper for a tailgate drive system, according to claim 3, characterized in that said second pad is subjected to friction of two adjacent first pads when rotating.

5. The damper for a tailgate drive system according to any of claims 1-4, further comprising a damper housing formed with a receiving cavity for receiving the two or more first shims and the at least one second shim.

6. The damper for a tailgate drive system, according to claim 5, characterized in that the damper housing has a bottom wall and a circumferential wall formed integrally with the bottom wall, the accommodation cavity being formed by the bottom wall and the circumferential wall; and a shell through hole is formed in the bottom wall of the damper shell and can be penetrated by a driving shaft outside the damper.

7. The damper for a tailgate drive system, according to claim 6, characterized in that the first shim is fixed within the damper housing such that it is non-rotatable in a circumferential direction.

8. The damper for a tailgate drive system, according to claim 7, characterized in that the inner side of the circumferential wall of the damper housing is provided with a plurality of first protrusions in the circumferential direction, one first recess being formed between each adjacent two first protrusions, the plurality of first protrusions having an extension in the axial direction of the damper housing in a first portion of the inner side of the circumferential wall.

9. The damper for a tailgate drive system, according to claim 8, characterized in that a plurality of second protrusions are formed on a circumferential edge of the first gasket, one second recess is formed between each adjacent two second protrusions, the first protrusion of the damper housing and the second recess of the first gasket have matching shapes, and the first recess of the damper housing and the second protrusion of the first gasket have matching shapes.

10. The damper for a tailgate drive system, according to claim 1, characterized in that the second shim has a spline formed on a wall of the second shim through hole, and the second shim is connected to the drive shaft outside the damper through the spline.

Technical Field

The disclosure belongs to the technical field of automobile electric tail gate driving systems, and particularly relates to a damper for a tail gate driving system, the tail gate driving system and an automobile.

Background

In the automobile market, along with the popularization of product intellectualization and electromotion trends, vehicles of more and more brands have all possessed electronic tail gate system, realize opening and closing the automation of tail gate through electronic tail gate actuating system to promote user's convenience greatly.

Disclosure of Invention

In order to solve at least one of the above technical problems, the present disclosure provides a damper for a tailgate driving system, and an automobile. The damper of the present disclosure is particularly suited for use in power tailgate drive systems.

The damper for the tail gate driving system, the tail gate driving system and the automobile are realized through the following technical scheme.

According to one aspect of the present disclosure, there is provided a damper for a tailgate drive system, comprising: two or more first spacers; at least one second gasket disposed between and in contact with the two first gaskets; and a pressure providing part for applying pressure to the two or more first pads and the at least one second pad so that a frictional force is generated between the first pads and the second pads when the second pads are driven to rotate relative to the first pads.

According to the damper for the tailgate driving system according to at least one embodiment of the present disclosure, the second gasket has a second gasket through hole that is penetrated by a driving shaft other than the damper, and the second gasket is driven to rotate by a rotating action of the driving shaft.

According to the damper for the tailgate driving system of at least one embodiment of the present disclosure, the first gasket has a first gasket through hole that can be passed through by the driving shaft other than the damper, and the first gasket is not driven by the rotational motion of the driving shaft.

According to the damper for the tailgate driving system according to at least one embodiment of the present disclosure, the second pad is subjected to a frictional force of the adjacent two first pads when rotating.

The damper for a tailgate drive system according to at least one embodiment of the present disclosure further includes a damper housing formed with an accommodation cavity for accommodating the two or more first shims and the at least one second shim.

A damper for a tailgate drive system according to at least one embodiment of the present disclosure, the damper housing having a bottom wall and a circumferential wall integrally formed with the bottom wall, the accommodation cavity being formed by the bottom wall and the circumferential wall; and a shell through hole is formed in the bottom wall of the damper shell and can be penetrated by a driving shaft outside the damper.

According to the damper for the tailgate drive system according to at least one embodiment of the present disclosure, the first shim is fixed within the damper housing such that the first shim is not rotatable in a circumferential direction.

According to the damper for the tailgate drive system according to at least one embodiment of the present disclosure, the inner side of the circumferential wall of the damper housing is provided with a plurality of first protrusions in the circumferential direction, one first recess is formed between each adjacent two first protrusions, and the plurality of first protrusions have an extension in the axial direction of the damper housing in a first portion of the inner side of the circumferential wall.

According to the damper for the tailgate driving system according to at least one embodiment of the present disclosure, the first gasket has a plurality of second protrusions formed on a circumferential edge thereof, one second recess is formed between every adjacent two second protrusions, the first protrusion of the damper housing and the second recess of the first gasket have matching shapes, and the first recess of the damper housing and the second protrusion of the first gasket have matching shapes.

According to the damper for the tailgate driving system of at least one embodiment of the present disclosure, the second gasket is formed with a spline on a wall of the second gasket through hole, and the second gasket is connected with a driving shaft other than the damper through the spline.

According to at least one embodiment of this disclosure, the attenuator for tail-gate actuating system still includes the attenuator end cover, the peripheral surface of attenuator end cover is formed with the screw thread, be formed with the screw thread on the medial surface of keeping away from the diapire of the circumference wall of attenuator casing, the attenuator end cover with through screw-thread fit between the attenuator casing for the attenuator end cover can screw in the attenuator casing.

According to the damper for the tailgate driving system according to the at least one embodiment of the present disclosure, by adjusting the amount of screwing the damper end cover into the damper housing, the magnitude of the pressure applied by the pressure providing portion to the two or more first shims and the at least one second shim is adjusted.

A damper for a tailgate drive system, in accordance with at least one embodiment of the present disclosure, said damper end cap including an outer ring portion and an inner ring portion, said threads of said damper end cap being formed on an outer surface of said outer ring portion, an annular cavity being formed between said outer ring portion and said inner ring portion to accommodate at least a portion of said pressure provider.

According to the damper for the tailgate driving system according to at least one embodiment of the present disclosure, the pressure providing part is a spring.

According to the damper for the tailgate drive system of at least one embodiment of the present disclosure, the outer annular portion and the inner annular portion of the damper end cover are of a unitary structure, and the damper end cover has an end cover through hole that can be passed through by a drive shaft other than the damper.

According to the damper for the tailgate drive system according to at least one embodiment of the present disclosure, the outer surface of the damper housing is formed with a mounting portion through which the damper can be fixed within the tailgate drive system.

According to the damper for the tailgate driving system according to at least one embodiment of the present disclosure, a friction enhancing portion is formed on at least one surface of the first gasket and/or at least one surface of the second gasket.

According to another aspect of the present disclosure, there is provided a tailgate drive system comprising the damper of any preceding claim.

According to yet another aspect of the present disclosure, an automobile is provided, including the tailgate drive system described above.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.

Fig. 1 is an exploded view of a damper for a power tailgate drive system according to one embodiment of the present disclosure.

Fig. 2 is an axial sectional structure view of a damper for a power tailgate drive system according to an embodiment of the present disclosure.

FIG. 3 is a schematic view of a connection between a first shim and a damper housing of a damper for a power tailgate drive system, according to one embodiment of the present disclosure.

Description of the reference numerals

100 damper for power tailgate drive system

101 damper housing

1011 mounting part

1012 casing through hole

1013 first projection

1014 first recess

102 first gasket

1021 first gasket through hole

1022 second convex part

1023 second recess

103 second pad

1031 second gasket through hole

104 pressure supply part

105 damper end cap

1051 outer annular portion

1052 inside the ring section.

Detailed Description

The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. Technical solutions of the present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Unless otherwise indicated, the illustrated exemplary embodiments/examples are to be understood as providing exemplary features of various details of some ways in which the technical concepts of the present disclosure may be practiced. Accordingly, unless otherwise indicated, features of the various embodiments may be additionally combined, separated, interchanged, and/or rearranged without departing from the technical concept of the present disclosure.

The use of cross-hatching and/or shading in the drawings is generally used to clarify the boundaries between adjacent components. As such, unless otherwise noted, the presence or absence of cross-hatching or shading does not convey or indicate any preference or requirement for a particular material, material property, size, proportion, commonality between the illustrated components and/or any other characteristic, attribute, property, etc., of a component. Further, in the drawings, the size and relative sizes of components may be exaggerated for clarity and/or descriptive purposes. While example embodiments may be practiced differently, the specific process sequence may be performed in a different order than that described. For example, two processes described consecutively may be performed substantially simultaneously or in reverse order to that described. In addition, like reference numerals denote like parts.

When an element is referred to as being "on" or "on," "connected to" or "coupled to" another element, it can be directly on, connected or coupled to the other element or intervening elements may be present. However, when an element is referred to as being "directly on," "directly connected to" or "directly coupled to" another element, there are no intervening elements present. For purposes of this disclosure, the term "connected" may refer to physically, electrically, etc., and may or may not have intermediate components.

For descriptive purposes, the present disclosure may use spatially relative terms such as "below … …," below … …, "" below … …, "" below, "" above … …, "" above, "" … …, "" higher, "and" side (e.g., "in the sidewall") to describe one component's relationship to another (other) component as illustrated in the figures. Spatially relative terms are intended to encompass different orientations of the device in use, operation, and/or manufacture in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below … …" can encompass both an orientation of "above" and "below". Further, the devices may be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, when the terms "comprises" and/or "comprising" and variations thereof are used in this specification, the presence of stated features, integers, steps, operations, elements, components and/or groups thereof are stated but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groups thereof. It is also noted that, as used herein, the terms "substantially," "about," and other similar terms are used as approximate terms and not as degree terms, and as such, are used to interpret inherent deviations in measured values, calculated values, and/or provided values that would be recognized by one of ordinary skill in the art.

The damper for the tailgate driving system of the present disclosure is described in detail with reference to fig. 1 to 3.

Fig. 1 is an exploded view of a damper 100 for a power tailgate drive system according to an embodiment of the present disclosure. Fig. 2 is an axial sectional structure view of a damper 100 for a power tailgate drive system according to an embodiment of the present disclosure. Fig. 3 is a schematic view of the connection between the first shim 102 and the damper housing 101 of the damper 100 for a power tailgate drive system according to one embodiment of the present disclosure.

According to one embodiment of the present disclosure, a damper 100 for a tailgate drive system, comprises: two or more first spacers 102; at least one second pad 103, the second pad 103 being disposed between the two first pads 102 and contacting the two first pads 102; and a pressure providing part 104 for applying pressure to the two or more first pads 102 and the at least one second pad 103 so that a frictional force is generated between the first pads 102 and the second pads 103 when the second pads 103 are driven to rotate relative to the first pads 102.

Those skilled in the art will appreciate that the number of first and second shims 102, 103 may be adjusted based on the desired amount of damping based on the actual operating conditions. The basic principle is that any second shim 103 needs to be clamped in the middle left and right by the first shim 102.

For example, the order of mounting the first pad 102 and the second pad 103 is: first gasket 102, second gasket 103, first gasket 102.

Fig. 1 exemplarily shows three first pads 102 and two second pads 103, and preferably, the second pads 103 are circular in shape, wherein the pressure providing part 104 applies pressure to the three first pads 102 and the two second pads 103, and when the two second pads 103 are driven by a driving shaft of a tail gate driving system of an automobile to rotate relative to the three first pads 102, a frictional force is generated between the first pads 102 and the second pads 103, so that the damper generates a damping effect.

It should be noted that, both surfaces of the second gasket 103 of the damper 100 of the present disclosure are in contact with the surface of one first gasket 102, that is, each second gasket 103 is disposed between two first gaskets 102.

In the above embodiment, the second gasket 103 of the damper 100 for the tailgate driving system has the second gasket through hole 1031, the second gasket through hole 1031 can be passed through by the driving shaft other than the damper, and the second gasket 103 can be driven and rotated by the rotating operation of the driving shaft.

The first spacer 102 has a first spacer through hole 1021, the first spacer through hole 1021 is capable of being passed through by a drive shaft other than the damper, and the first spacer 102 is not driven by the rotational motion of the drive shaft.

It will be appreciated by those skilled in the art that the size of the first gasket through hole 1021 needs to be larger than the size of the second gasket through hole 1031 so that the first gasket 102 does not contact the driving shaft of the tailgate driving system of the automobile.

Therefore, when the driving shaft of the car tailgate driving system drives the second pad 103 of the damper 100 to rotate, the second pad 103 receives a frictional force of two first pads 102 adjacent to the second pad 103.

According to a preferred embodiment of the present disclosure, the damper 100 for a tailgate driving system further includes a damper housing 101, the damper housing 101 being formed with a receiving cavity for receiving two or more first shims 102 and at least one second shim 103.

Preferably, the damper housing 101 has a bottom wall and a circumferential wall formed integrally with the bottom wall, and the accommodation cavity is formed by the bottom wall and the circumferential wall; a housing through hole 1012 is formed in the bottom wall of the damper housing 101, and the housing through hole 1012 can be penetrated by a drive shaft outside the damper.

Preferably, the damper 100 for the tailgate driving system further includes a damper end cover 105, an outer circumferential surface of the damper end cover 105 is formed with threads, inner side surfaces of the circumferential walls of the damper housing 101, which are away from the bottom wall, are formed with threads, and the damper end cover 105 is screw-fitted to the damper housing 101 so that the damper end cover 105 can be screwed into the damper housing 101.

Fig. 1 and 2 show the thread of the outer surface of the damper end cover 105, and fig. 2 shows that the thread is formed on the inner side surface of one end of the circumferential wall of the damper housing 101.

The threads of the outer surface of the damper end cover 105 match the threads formed on the inner side surface of one end of the circumferential wall of the damper housing 101.

According to a preferred embodiment of the present disclosure, the first shim 102 of the damper 100 for the tailgate drive system is fixed within the damper housing 101 such that the first shim 102 cannot rotate in the circumferential direction.

Preferably, as shown in fig. 1, the inside of the circumferential wall of the damper housing 101 of the damper 100 for the tailgate drive system is provided with a plurality of first protrusions 1013 in the circumferential direction, one first recess 1014 is formed between each adjacent two first protrusions 1013, and the plurality of first protrusions 1013 have an extension in the axial direction of the damper housing in a first portion of the inside of the circumferential wall.

In fig. 3, 8 first protrusions 1013 and 8 first recesses 1014 are exemplarily shown, and it will be understood by those skilled in the art that the number of first protrusions 1013 and first recesses 1014 may be appropriately adjusted.

Accordingly, the first gasket 102 of the damper 100 for the tailgate driving system has a plurality of second protrusions 1022 formed on a circumferential edge thereof, one second recess 1023 formed between each adjacent two second protrusions 1022, the first protrusion 1013 of the damper housing 101 and the second recess 1023 of the first gasket 102 have matching shapes, and the first recess 1014 of the damper housing 101 and the second protrusion 1022 of the first gasket 102 have matching shapes.

Fig. 1 and 3 exemplarily show 8 second convex parts 1022 and 8 second concave parts 1023, and those skilled in the art will understand that the number of the second convex parts 1022 and the second concave parts 1023 can be appropriately adjusted.

According to a preferred embodiment of the present disclosure, a second gasket through hole 1031 of a second gasket 103 of a damper 100 for a tailgate drive system has a spline formed on a wall thereof, and the second gasket 103 is fitted with the spline of a drive shaft of an automobile tailgate drive system through the spline so that the second gasket 103 can be driven by the drive shaft.

In the above embodiment, the damper 100 used in the tailgate driving system adjusts the amount of the damper end cover 105 screwed into the damper housing 101, and adjusts the magnitude of the pressure applied by the pressure supply unit 104 to the two or more first shims 102 and the at least one second shim 103.

Preferably, the damper end cover 105 of the damper 100 for a tailgate drive system includes an outer annular portion 1051 and an inner annular portion 1052, the threads of the damper end cover 105 being formed on the outer surface of the outer annular portion 1051, an annular cavity being formed between the outer annular portion 1051 and the inner annular portion 1052 to accommodate at least a portion of the pressure provider 104.

By the above-described structural design of the damper end cap 105, the pressure providing portion 104 (preferably a spring) is secured by the outer annular portion 1051 and the inner annular portion 1052, thereby avoiding a twisting condition of the spring.

Preferably, the spring is under compression, thereby providing positive pressure.

Fig. 1 and 2 exemplarily show the structure of the damper end cover 105. The pressure providing portion 104 is preferably a spring.

When the damper 100 of the present disclosure is mounted to the electric tailgate driving system of the automobile, the damper housing 101 is fixed in the electric tailgate driving system of the automobile, and an output shaft of the electric tailgate driving system of the automobile, i.e., a driving shaft passes through the middle of the damper 100, and the driving shaft is connected to the second gasket 103 by a spline.

When the driving shaft rotates, the second gasket 103 is driven to rotate through the spline, and due to the fact that friction force exists between the second gasket 103 and the first gasket 102, reverse torque is generated, and damping output is provided.

In order to match the damping required by different automobile (electric) tail gates, the change of the positive pressure of the spring can be realized by setting the number of turns of the spring and/or adjusting the thread depth of the damper end cover 105 screwed into the damper shell 101, so that the friction force is changed, and different outputs of the damping are realized.

Preferably, the outer annular portion 1051 and the inner annular portion 1052 of the damper end cap 105 of the damper 100 for a tailgate drive system are a unitary structure, the damper end cap 105 having an end cap through hole that is capable of being passed through by a drive shaft of an automotive tailgate drive system.

According to a preferred embodiment of the present disclosure, the damper housing 101 of the damper 100 for a tailgate drive system is formed at an outer surface thereof with a mounting portion 1011, by which the damper 100 can be fixed within the tailgate drive system of an automobile. The mounting portion 1011 may be a reinforcing rib, and fig. 1 exemplarily shows the structure of the mounting portion 1011.

According to a preferred embodiment of the present disclosure, a friction enhancing portion is formed on at least one surface of the first gasket 102 and/or at least one surface of the second gasket 103 of the damper 100 for the tailgate drive system.

The friction-reinforcing member is preferably PTFE (teflon) or PTFE (teflon) + carbon fiber. Preferably, the second pad 103 is provided with friction enhancing portions on both surfaces thereof, and the first pad 102 is provided with friction enhancing portions on a surface thereof contacting the second pad 103. The friction enhancing portions may be provided only on both surfaces of the second pad 103, or may be provided only on the surface of the first pad 102 that is in contact with the second pad 103.

By providing the friction enhancing portion, the friction force between the first pad 102 and the second pad 103 can be increased and the stability of the friction force can be ensured, so that the damper 100 can obtain a stable friction force and good sound quality.

The opening sizes of the through holes of the damper housing 101, the first spacer 102, and the damper end cover 105 are all through holes.

The damper for the tail gate driving system can realize damping change by adjusting the spring or the damper end cover, so that the damper is adaptive to different automobile tail gate driving systems.

The arrangement of the adhering materials (friction enhancing parts) on the surfaces of the first gasket and the second gasket further ensures that the damper has stable damping output and good sound quality at different temperatures, so that the damper has longer service life.

The damper is simple in structure, low in cost and convenient to install.

A tailgate driving system according to an embodiment of the present disclosure includes the damper 100 of any of the above embodiments.

An automobile according to one embodiment of the present disclosure includes the tailgate driving system of the above-described embodiment.

In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present disclosure, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise.

It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.