CN217602420U

CN217602420U - Automatic opening and closing actuator for vehicle door and motor vehicle

Info

Publication number: CN217602420U
Application number: CN202221485580.4U
Authority: CN
Inventors: 王四玲; 胡华华
Original assignee: Shanghai Ingin Auto Technology Co ltd
Current assignee: Shanghai Ingin Auto Technology Co ltd
Priority date: 2021-11-08
Filing date: 2022-06-14
Publication date: 2022-10-18
Anticipated expiration: 2032-06-14
Also published as: CN114562172A; CN217028549U; CN217538326U; CN114961497A

Abstract

The present disclosure provides an automatic opening and closing actuator for a vehicle door, including: the wall of the shell at least partially forms a cavity, the pushing part comprises a guide part, a guide matching part matched with the guide part in a sliding/rolling mode is arranged on the wall of the shell, and the pushing part can perform stable linear motion in the cavity based on the sliding/rolling matching of the guide part and the guide matching part; and a waterproof member provided to shield the water discharge hole of the case so as to prevent external water from entering the chamber in which the actuating lever is located. The invention also provides an automatic vehicle door opening and closing actuator with the brake device and a motor vehicle.

Description

Automatic opening and closing actuator for vehicle door and motor vehicle

Technical Field

The present disclosure relates to the field of automotive technologies, and in particular, to an actuator for automatically opening and closing a door of a vehicle and a motor vehicle.

Background

At present, a door used in a vehicle such as a vehicle generally uses a hinge and a stopper to realize a rotation opening and closing motion of the door, and generally uses a manual operation as a main operation. With the development of automobile automation and intellectualization, automobile users demand a more convenient and scientific door opening and closing mode. In the automatic opening/closing system, it is necessary to provide stable opening/closing and a small volume, and a large amount of shaking should not occur during opening/closing, hovering, or the like of the door. In addition, because of the different use conditions of the vehicles, it is also necessary to ensure that moisture and the like are prevented from entering the corresponding control mechanism during use.

Therefore, there is a need for an actuator for automatically opening a door that is robust, reliable, occupies a smaller space, has better manufacturing tolerances, and is cost effective to meet the different demands of different usage scenarios.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one of the above technical problems, the present disclosure provides an automatic door opening and closing actuator and a motor vehicle.

According to an aspect of the present disclosure, a vehicle door automatic opening and closing actuator with a waterproof member includes: a drive section including a drive motor, the drive section being capable of outputting a rotational motion based on the drive motor; the transmission part comprises a lead screw and a pushing part in threaded fit with the lead screw, and the transmission part can convert the rotation motion of the lead screw received from the driving part into the linear motion of the pushing part through the threaded fit of the lead screw and the pushing part; an actuator including an actuator lever, a first end of the actuator lever being connected to the pushing portion, a second end of the actuator lever being connected to a body of the motor vehicle, the actuator lever driving a door of the motor vehicle based on a linear motion of the pushing portion such that the door is opened or closed with respect to the body; the wall of the shell at least partially forms a cavity, the pushing part comprises a guide part, a guide matching part matched with the guide part in a sliding/rolling way is arranged on the wall of the shell, and the pushing part can perform stable linear motion in the cavity based on the sliding/rolling matching of the guide part and the guide matching part; and a waterproof member provided to shield the water discharge hole of the housing so as to prevent external water from entering the chamber in which the actuating lever is located.

According to at least one embodiment of the present disclosure, the drain holes are provided at both sides of a movement direction of the actuating rod in a chamber in which the actuating rod is located.

According to at least one embodiment of the present disclosure, the waterproof member extends from an upper portion of the drain hole to an outer side of the drain hole so that drainage can be performed and entry of water into the chamber can be prevented.

According to at least one embodiment of the present disclosure, the waterproof member is a curtain member extending from an upper portion of the drain hole to an outer side of the drain hole.

According to at least one embodiment of the present disclosure, a stopper portion is provided at one end of the actuating rod adjacent to the pushing portion to prevent the door from being opened excessively.

According to at least one embodiment of the present disclosure, the stop portion is a raised feature perpendicular to the surface of the actuating rod.

According to at least one embodiment of the present disclosure, a projection of the actuator on a common plane where a spindle of the lead screw of the transmission portion and a motor output shaft of the driving motor of the driving portion are located is located between the spindle of the lead screw of the transmission portion and the motor output shaft of the driving motor of the driving portion.

According to at least one embodiment of the present disclosure, the vehicle door automatic opening and closing actuator further comprises a vehicle door mounting bracket, and one end of the vehicle door mounting bracket is fixedly connected with a vehicle door.

According to at least one embodiment of the present disclosure, a driving motor output shaft of the driving motor is not on the same axis as a spindle of the lead screw, and the driving motor output shaft of the driving motor is parallel or approximately parallel to the spindle of the lead screw;

according to an aspect of the present disclosure, an automatic opening and closing actuator for a vehicle door includes: a drive section including a motor, the drive section being capable of outputting a rotational motion based on the motor; the transmission part comprises a shell and a lead screw arranged in the shell, receives the rotation action of the driving part, converts the rotation action of the driving part into linear motion and transmits the linear motion to the vehicle door, and realizes the automatic opening and closing motion of the vehicle door; and the brake device is arranged at the end part of the lead screw of the transmission part, can generate resistance and transmits the resistance to the lead screw.

According to at least one embodiment of the present disclosure, the brake device is coupled to the lead screw.

According to at least one embodiment of the present disclosure, the braking device is a mechanical braking device for providing a continuous frictional resistance.

According to at least one embodiment of the present disclosure, a braking portion and a pressure elastic portion are provided in the mechanical braking device, the pressure elastic portion provides pressure to the braking portion, and a partial structure in the pressure elastic portion is configured as the braking portion.

According to at least one embodiment of the present disclosure, the braking portion of the mechanical braking device is a moving portion and a fixed portion, wherein the moving portion rotates together with the lead screw, and the fixed portion does not rotate with the lead screw.

According to at least one embodiment of the present disclosure, the brake device includes a partition provided between the movable portion and the fixed portion.

According to at least one embodiment of the present disclosure, the mechanical brake device is provided with a brake shaft having the same rotation axis core as the lead screw.

According to at least one embodiment of the disclosure, the brake shaft of the mechanical brake device is integrated into the spindle of the transmission.

According to at least one embodiment of the present disclosure, the braking device includes one or more sets of moving and fixed portions to achieve adjustment of the frictional force.

According to at least one embodiment of the present disclosure, the transmission portion further includes a pushing portion, and the screw shaft is in threaded fit with the pushing portion, so that the transmission portion can convert a rotational motion received by the screw shaft from the driving portion into a linear motion of the pushing portion.

According to at least one embodiment of the present disclosure, the vehicle further comprises an actuating mechanism, wherein the actuating mechanism comprises an actuating rod, a first end part of the actuating rod is connected with the pushing part, and a second end part of the actuating rod is hinged with a vehicle body of a motor vehicle.

According to at least one embodiment of the present disclosure, a projection of the actuator on a common plane where a spindle of the lead screw of the transmission portion and the motor output shaft of the motor of the driving portion are located is located between the spindle of the lead screw of the transmission portion and the motor output shaft of the motor of the driving portion.

According to at least one embodiment of the present disclosure, a waterproof member is provided on a housing of the automatic door opening/closing actuator, and the waterproof member is configured to shield a drain hole of the housing so as to prevent external water from entering a cavity in which the actuating lever is located.

According to at least one embodiment of the present disclosure, a motor output shaft of the motor is disposed in parallel with a spindle of the lead screw.

According to still another aspect of the present disclosure, an automatic opening and closing actuator for a vehicle door includes: a drive section including a motor, the drive section being capable of outputting a rotational motion based on the motor; the transmission part comprises a shell, a lead screw arranged in the shell and a pushing part in threaded fit with the lead screw, and the transmission part can convert the rotation action of the lead screw received from the driving part into the linear action of the pushing part through the threaded fit of the lead screw and the pushing part; the actuating mechanism comprises an actuating rod, the first end of the actuating rod is connected with the pushing part, and the second end of the actuating rod is connected with the body of the motor vehicle; and the brake device is arranged at the end part of the lead screw of the transmission part, the actuating rod drives the door of the motor vehicle based on the linear motion of the pushing part, so that the door is opened or closed relative to the vehicle body, and an included angle is formed between the motor output shaft of the motor of the driving part and the core shaft of the lead screw.

According to at least one embodiment of the present disclosure, the brake device is a mechanical brake device.

According to at least one embodiment of the present disclosure, a braking portion and a pressure elastic portion are provided in the mechanical braking device.

According to at least one embodiment of the present disclosure, the brake part of the mechanical brake device is a movable part and a fixed part, wherein the movable part can rotate along with the screw rod, and the fixed part does not rotate along with the screw rod;

according to at least one embodiment of the present disclosure, the water-proof member is provided to shield the water drain hole of the housing so as to prevent water from the outside from entering the chamber in which the actuating rod is located.

According to yet another aspect of the present disclosure, an automotive vehicle comprises: a vehicle door; a vehicle body; and the automatic opening and closing actuator of the vehicle door, which is arranged between the vehicle door and the vehicle body to open or close the vehicle door relative to the vehicle body.

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 overall configuration diagram of an automatic door opening/closing actuator according to an embodiment of the present disclosure.

Fig. 2 is a partial schematic view of an automatic door opening/closing actuator according to an embodiment of the present disclosure.

Fig. 3 is an exploded schematic view of a driving unit of the automatic door opening/closing actuator according to the embodiment of the present disclosure.

Fig. 4 is a partial schematic view of an automatic door opening/closing actuator according to an embodiment of the present disclosure.

Fig. 5 is a schematic structural view of a gear train device of a transmission unit of the automatic door opening/closing actuator according to the embodiment of the present disclosure.

Fig. 6 is a side view of the automatic door opening and closing actuator according to the embodiment of the present disclosure.

Fig. 7 is a schematic structural view of a push rod of the automatic door opening and closing actuator according to the embodiment of the present disclosure.

Fig. 8 is a schematic configuration diagram of a holding mechanism of an automatic door opening/closing actuator according to an embodiment of the present disclosure.

Fig. 9 to 11 are partial schematic views of the automatic door opening and closing actuator according to the embodiment of the present disclosure.

Fig. 12 to 13 are schematic diagrams of a brake device of an automatic door opening/closing actuator according to an embodiment of the present disclosure.

Fig. 14 is a side view of the automatic door opening and closing actuator according to the embodiment of the present disclosure.

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 merely illustrative of the relevant matter and not restrictive of the 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. Thus, unless otherwise indicated, the features of the various embodiments/examples 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 methods such as "below 8230; …," "below 8230;" \8230; below 8230; "," below 8230; "," "above 8230" "," "above", "at 8230;", "" above "," higher "and" side (e.g., in "side wall" and the like, to describe one component's relationship to another (or 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 "at 8230 \8230;" below "may 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 stated features, integers, steps, operations, elements, components and/or groups thereof are stated to be present but do 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 present disclosure provides an automatic opening and closing actuator for a vehicle door. Fig. 1 shows a schematic view of the automatic door opening and closing actuator 100. The automatic door opening and closing actuator 100 may include a driving part 110, a transmission part 120, and a pushing part 130. Wherein the driving part 110 and the transmission part 120 may be disposed in the housing 140, and at least a portion of the pushing part 130 may be disposed in the housing 140. The driving part 110 and the power transmission part 120 disposed within the case 140 are not shown in fig. 1, which will be described later.

As shown in fig. 1, the case 140 may include a front cover plate 141 and a rear cover plate 142, the front cover plate 141 may be disposed at one side and the rear cover plate may be disposed at the other side, and the front cover plate 141 and the rear cover plate 142 may be integrally formed with the middle body of the case 140 or may be separately formed. Further, the automatic door opening and closing actuator 100 may include a door mounting bracket 150, and the door mounting bracket 150 may be fixedly attached to the door, for example, the door mounting bracket 150 may include a mounting screw 151, and the mounting screw 151 may be fastened to the door. Further, the housing 140 may be connected to the door mounting bracket 150, and in the present disclosure, it is preferable that the housing 140 be hingedly connected to the door mounting bracket 150 so that the housing 140 can pivot with respect to the door mounting bracket 150 after the door mounting bracket 150 is fixed to the door. In the present disclosure, the housing 140 and the door mounting bracket 150 may be hingedly connected by a hinge screw 152.

The push portion 130 may be connected with a vehicle body mounting bracket 160, wherein the vehicle body mounting bracket 160 may be mounted to a vehicle body of a vehicle. In the present disclosure, it is preferable that the push portion 130 is hingedly connected to the vehicle body mounting bracket 160.

Further, as shown in fig. 1, the automatic door opening and closing actuator 100 may further include a wire harness 171 for transmitting electric power and signals between the electronic devices of the vehicle and the automatic door opening and closing actuator 100. The wiring harness 171 may be connected with a clip 172, and the clip 172 may be clipped to a corresponding component. A plug 173 may be provided at the end of the wire harness 171, and the plug 173 may be connected to a plug of a corresponding electronic device to implement power connection and communication.

Fig. 2 shows a schematic view with a partial housing removed of an automatic door opening and closing actuator according to one embodiment of the present disclosure. As shown in fig. 2, the driving part 110, the transmission part 120, and the pushing part 130 may be disposed in parallel. It should be noted that "parallel" described herein may be absolutely parallel, or may be approximately parallel, etc., and all fall within the scope of the present disclosure. Wherein, the driving part 110 and the transmission part 120 may be located at both sides of the pushing part 130. The driving unit 110 rotates, and the rotation of the driving unit 110 is converted into the translation of the transmission unit 120, and the translation of the transmission unit 120 drives the pushing unit 130 to move, so that the door is opened and closed relative to the vehicle body.

Fig. 3 illustrates a structure view of a driving part according to one embodiment of the present disclosure. Wherein the driving part 110 may include a driving motor 111, and the driving motor 111 may be capable of rotating. The driving part 110 may further include a reduction gear 112, the reduction gear 112 is connected to one end of the motor, and the high rotation speed output by the driving motor 111 may reduce the output rotation speed and increase the output torque through the reduction gear 112. Wherein the reduction means may comprise a planetary gear set, or a worm gear, or a pulley, etc. The driving part 110 may further include a hall sensor 113, and the hall sensor 113 is at least used to acquire a rotation position signal of the driving motor 111. The signals obtained by the hall sensor 113 can be used for the control logic of the electrically powered door system. Among them, the hall sensor 113 may be provided at the other end of the driving motor 111, and the rotation and position of the door, etc. are detected by the counting function of the hall sensor 113. Preferably, the signal of the hall sensor can also be used as an input signal for a control process of a motor vehicle door.

The driving part 110 may further include a clutch 114, and the clutch 114 may be connected to the reduction gear 112 and may be an electromagnetic clutch or a mechanical clutch. The clutch 114 is used for internal resistance of the driving unit 110, and ensures door opening and closing operation force and slope stability after opening of the door of the vehicle under different environments. The driving part 110 may further include a spline shaft 115, wherein the spline shaft 115 is connected with a reduction gear, and transmits power of the reduction gear 112 to the power transmitting part 120 through a transmission device such as a gear train device. Preferably, in order to reduce the rotational friction of the spline shaft 115, a bushing 116, or other components such as a bearing, may be provided on the spline shaft 115.

According to further embodiments of the present disclosure, a bracket 117 may also be provided to support the clutch 114 and the like in the housing 140. In addition, a motor cushion 118 can be provided to achieve the purpose of motor cushioning. A motor sealing ring 143 may also be provided on the motor end cap 119 for sealing purposes.

The transmission part 120 according to the present disclosure may include a gear set device, as shown in fig. 4 and 5, the gear set device includes a first gear 121, a second gear 122 and a third gear 123 which are sequentially engaged, the first gear 121 is connected with the driving part 110, and the third gear 123 is connected with a first end of the lead screw 124. Specifically, the spline shaft 115 can be engaged with the first gear 121 to drive the first gear 121 to rotate around the motor output shaft of the driving motor 111, the first gear 121 drives the second gear 122 to follow up, and the second gear 122 drives the third gear 123 to rotate. The present disclosure preferably adjusts the number of gears of the gear train device such that there is a space between the lead screw 124 and the driving part 110 for accommodating the actuator. The power transmission of the

gears

121, 122, 123 can be replaced by other common transmission methods such as a belt.

The transmission unit 120 may further include a lead screw 124 and a pushing unit 125 in threaded engagement with the lead screw 124, and the lead screw 124 is in threaded engagement with the pushing unit 125, so that the transmission unit 120 can convert the rotation received by the lead screw 124 from the driving unit 110 into the linear motion of the pushing unit 125. The pushing portion 125 may be in the form of a lead screw nut pusher, for example. The push portion 125 forms a through hole, and the inner wall of the through hole forms an internal thread to be screw-engaged with the external thread of the lead screw 124. One end of a lead screw 124 of the transmission 120 is connected to a third gear 123 of the gear train device. The third gear 123 rotates around its spindle, the external thread of the screw 124 and the internal thread of the pushing part 125 cooperate with each other, the rotary power of the screw 124 is converted into the linear power of the pushing part 125, and the power is transmitted to the pushing part through the pushing part 125. Preferably, the end of the lead screw 124 is provided with a bearing/bushing 126. As shown in fig. 9, a bearing support sleeve 1261, a screw seal ring 1262 and a washer 1263 may be provided near an end of the screw adjacent to the transmission.

The driving force of the motor output shaft of the motor 111 of the driving part 110 can realize 180 ° steering through a gear train device, and transmit the output torque to the lead screw 124 of the transmission part 120, so that the motor output shaft of the motor 111 and the spindle of the lead screw 124 of the transmission part 120 are arranged in parallel. It should be noted that the above-described "parallel" may be absolutely parallel, or may be approximately parallel, etc., and all fall within the protection scope of the present disclosure.

The actuator includes an actuator lever 131 (push lever), a first end of the actuator lever 131 is connected to the push portion 125, and a second end of the actuator lever 131 is connected (e.g., hinged) to the body of the motor vehicle. The holding mechanism can hold at least the driving portion 110 and the power transmitting portion 120 at a door of the vehicle. The actuating lever 131 drives the door of the vehicle based on the linear motion of the pushing portion 125 so that the door is opened or closed with respect to the vehicle body. The motor output shaft of the motor 111 is not on the same axis with the spindle of the lead screw 124, and the motor output shaft of the motor 111 is parallel to the spindle of the lead screw 124;

as shown in fig. 6, the wall of the housing 140 at least partially forms a cavity, for example, a uniform cross-section cavity, the pushing portion 125 includes a guide portion 1251, a guide fitting portion 1271 which is slidably/rollably fitted to the guide portion 1251 is disposed on the wall of the housing 140, and the pushing portion 125 can perform a stable linear motion in the uniform cross-section cavity based on the slidable/rollable fitting of the guide portion 1251 and the guide fitting portion 1271.

The automatic door opening and closing actuator 100 of the present disclosure may be disposed in a cavity formed by an inner panel and an outer panel of a door, and fixedly connected to the inner panel of the door through a retaining mechanism (a door mounting bracket 150), and one end (i.e., the second end described above) of an actuating rod 131 of the actuating mechanism is hinged to a vehicle body, i.e., a vehicle body, after passing through an opening of the inner panel of the door.

The automatic vehicle door opening and closing actuator 100 of the present disclosure forms a cavity with a uniform cross section, for example, through the wall of the housing 140, and through the cooperation between the guide portion 1251 of the pushing portion 125 and the guide engaging portion 1271 on the wall of the housing 140, the pushing portion 125 can perform a stable linear motion in the cavity with the uniform cross section, so as to ensure that the pushing portion 125 does not deflect or get stuck when moving, and thus the automatic vehicle door opening and closing actuator 100 has better working stability.

The housings 140 of the transmission 120 of the present disclosure may all be uniform cross-section cavities. The shell 140 may be made of a metal material or a section bar extruded from a non-metal material, so as to ensure the dimensional stability of the shell with the uniform cross section.

The material of the pushing portion 125 of the transmission portion 120 of the present disclosure is preferably a high-strength, self-lubricating, non-metallic material.

Referring to fig. 1 and 9, the actuator lever 131 of the actuator of the present disclosure is preferably disposed at least partially within the housing 140 and extends via a retaining mechanism to connect with the body of the motor vehicle.

Wherein the actuating rod 131 is hinged with the body of the motor vehicle, fig. 7 shows a schematic structural view of the actuating mechanism of the preferred embodiment of the present disclosure, and preferably, the actuating mechanism further comprises a hinge connection portion 132, and the actuating rod 131 is hinged with the body of the motor vehicle through the hinge connection portion 132.

According to the preferred embodiment of the present disclosure, the actuator further includes a limiting portion 133 disposed at the first end portion of the actuating rod 131, the limiting portion 133 is disposed adjacent to the pushing portion 125 to limit the length of the actuating rod 131 extending out of the holding mechanism, and cooperates with the vehicle door or the bracket of the actuator when the vehicle door is opened, so as to limit the door from being opened; the limiting structure is preferably provided as a raised feature perpendicular to the surface of the push rod.

Referring to fig. 7 and 9, a hinge connection 132 is provided at a second end of the actuating lever 131.

Wherein a through hole is provided in the holding mechanism in order to enable the actuating rod 131 to extend out of the holding mechanism.

Referring to fig. 7, preferably, the stopper 133 is a protrusion perpendicular to the surface of the actuating rod 131.

The pushing part 125 is preferably detachably connected to the first end of the actuating rod 131, and more preferably, rotatably connected therebetween. For example, a bushing 1311 may be disposed at a first end of the actuating rod 131, and may be used in cooperation with a ball bushing 1312 disposed on the pushing portion 125.

With the automatic door opening and closing actuator 100 of the present disclosure, preferably, referring to fig. 7, the actuator rod 131 of the actuator is a curved rod. Actuator rod 131 may be designed to be formed of a plastic coated metal material.

Since the line connecting the two ends of the actuating rod 131 and the core line of the hinge axis of the door have a certain moment arm, the motion envelope of the actuating rod 131 can be reduced by using a curve-shaped rod according to the fitting of the opening and closing of the door, as shown in fig. 7.

According to a preferred embodiment of the present disclosure, the hinge points of both ends of the actuating rod 131 and the hinge points of other portions of the automatic door opening and closing actuator 100 of the present disclosure may be provided as a spherical hinge. The spherical hinge can absorb manufacturing deviation, and simultaneously solves the problem of large motion envelope caused by the fact that a lead screw of a traditional actuating device is directly used as an actuating mechanism.

With the automatic door opening and closing actuator 100 of the present disclosure, it is preferable that a waterproof sealing structure is provided between the driving part 110 and the transmission part 120.

Furthermore, a waterproof and dustproof curtain-like member may be provided at the opening of the holding mechanism for extending the actuating rod 131 to block dust, rainwater, etc. from the outside.

Further, as shown in fig. 1, the housing may be provided with a drainage feature 174 (hole), and the drainage hole of the push part may be shielded by a waterproof member 170, and water flow at the door may fall from the upper part in general, and the waterproof member shields the drainage hole like a raincoat, thereby preventing external water from entering into the chamber where the push rod is located from the drainage hole. In addition, the water discharging holes can be arranged on two sides of the moving direction of the execution rod of the chamber where the push rod is arranged. The waterproof member is fitted from the upper portion of the drain hole and extends to the outer side of the drain hole, so that water can be effectively drained while preventing water from entering the chamber from the drain hole. The waterproof member 170 is a cap-type member assembled from the upper portion of the actuator, extending to both sides of the actuator, and covering the drain holes on both sides, and can be fastened to the housing 140, and the waterproof member 170 is preferably made of a plastic material. In the present disclosure the flashing member may be snap-fit or otherwise secured to the actuator. In addition, the waterproof member may be provided in separate pieces for the plurality of drain holes.

Fig. 8 shows the structure of the holding mechanism according to one embodiment of the present disclosure, and as shown in fig. 8, the holding mechanism includes a plurality of fixing portions, which may be mounting screws 151, through which the holding mechanism is fixedly connected to the vehicle door.

Referring to fig. 8 and 9, when the actuator moves, the transmission unit 120 and/or the driving unit 110 may rotate around the pivot of the holding mechanism (for example, one end of the transmission unit 120 is hinged to the pivot, and one end of the driving unit 110 is hinged to the pivot), so that manufacturing variations of the vehicle door and the vehicle body may be absorbed, and a smoother movement relationship may be achieved. The pivot of the retaining mechanism may be arranged to rotate vertically as shown in fig. 7 or may be arranged to rotate horizontally.

With the automatic opening and closing actuator 100 of the present disclosure, it is preferable that the automatic opening and closing actuator further includes an electronic control unit that opens or closes the vehicle door by outputting a control signal to the driving portion 110 to cause the actuating rod 131 to perform an extending action or a retracting action with respect to the holding mechanism.

An automatic door opening and closing actuator 100 according to another embodiment of the present disclosure includes:

a drive unit 110, the drive unit 110 including a motor 111, the drive unit 110 being capable of outputting a rotational motion based on the motor 111;

the transmission part 120, the transmission part 120 includes a housing 140, a lead screw 124 disposed in the housing 140 and a pushing part 125 in threaded fit with the lead screw 124, and the transmission part 120 can convert the rotation motion received by the lead screw 124 from the driving part 110 into the linear motion of the pushing part 125 through the threaded fit of the lead screw 124 and the pushing part 125;

an actuator, which comprises an actuator rod 131, wherein a first end part of the actuator rod 131 is connected with the pushing part 125, and a second end part of the actuator rod 131 is connected (hinged) with the body of the motor vehicle;

the actuating lever 131 drives the door of the vehicle based on the linear motion of the pushing portion 125 so that the door is opened or closed with respect to the vehicle body;

the motor output shaft of the motor 111 is not on the same axis with the spindle of the lead screw 124, and the motor output shaft of the motor 111 is parallel to the spindle of the lead screw 124;

the projection of the actuator on the common plane where the spindle of the lead screw 124 of the transmission unit 120 and the motor output shaft of the motor 111 of the driving unit 110 are located is located between the spindle of the lead screw 124 of the transmission unit 120 and the motor output shaft of the motor 111 of the driving unit 110.

Referring to fig. 9, the automatic door opening/closing actuator 100 of the present embodiment can improve the dust-proof and water-proof performance of the automatic door opening/closing actuator 100 by providing the actuator between the driving unit 110 and the transmission unit 120.

In the present embodiment, the driving portion 110 and the transmission portion 120 may be fixedly connected to the door inner panel through mounting points (the holding mechanism described above is omitted), and the actuating rod 131 is disposed between the spindle of the lead screw 124 and the motor output shaft of the motor 111, so that the actuating rod 131 is located between the two mounting points, and when the actuating rod 131 is pushed out, the mounting points of the actuating device 100 and the door inner panel are stressed in a balanced manner, thereby avoiding a problem that the one-sided size of the actuating rod 131 is large and is not favorable for mounting and arranging in the door.

In the automatic door opening/closing actuator 100 according to the present embodiment, the actuating lever 131 is disposed between the driving unit 110 and the transmission unit 120, and although the transmission distance from the driving unit 110 to the transmission unit 120 is increased, the increased transmission distance allows the transmission of motion by forming a gear train device with small-sized gears.

When the actuating rod 131 is connected with the vehicle body through the vehicle door, a movement gap is left between the actuating rod 131 and the vehicle door, dust and water are easy to enter the position of the actuating rod 131, and in the embodiment, the actuating rod 131 is preferably arranged below the lead screw 124, so that dust, water and the like can be effectively prevented from entering the position of the lead screw 124 of the transmission part 120.

Preferably, in the automatic door opening/closing actuator 100 according to the present embodiment, a drain hole is formed in the housing 140 of the transmission unit 120 to prevent water from accumulating and ensure smooth operation of the screw 124.

Preferably, the wall of the housing 140 at least partially forms a uniform cross-section cavity, the pushing portion 125 includes a guide portion 1251, a guide fitting portion 1271 fitted with the guide portion 1251 is disposed on the wall of the housing 140, and the pushing portion 125 can perform a stable linear motion in the uniform cross-section cavity based on the fitting of the guide portion 1251 and the guide fitting portion 1271.

The fit between the guide portion 1251 and the guide fitting portion 1271 is a sliding fit or a rolling fit. For example, the guide 1251 may be provided in the form of a rolling bearing, see, for example, fig. 10 and 11, etc.

Fig. 9 shows a structure of an automatic door opening/closing actuator 100 according to still another embodiment of the present disclosure. Referring to fig. 9, the automatic door opening/closing actuator 100 according to the present embodiment includes:

the transmission part 120, the transmission part 120 includes a housing 127, a lead screw 124 disposed in the housing 127 and a pushing part 125 in threaded fit with the lead screw 124, and the transmission part 120 can convert the rotation motion received by the lead screw 124 from the driving part 110 into the linear motion of the pushing part 125 through the threaded fit of the lead screw 124 and the pushing part 125;

an actuator, which comprises an actuating rod 131, wherein a first end part of the actuating rod 131 is connected with the pushing part 125, and a second end part of the actuating rod 131 is connected with (hinged to) the body of the motor vehicle;

a holding mechanism capable of holding at least the driving unit 110 and the power transmission unit 120 at a door of the automobile;

the motor output shaft of the motor 111 of the driving part 110 is arranged at an included angle with the spindle of the lead screw 124.

The automatic door opening/closing actuator 100 according to the present embodiment can adapt the automatic door opening/closing actuator 100 according to the present disclosure to different door structures by providing the motor output shaft of the motor 111 of the driving unit 110 at an angle to the spindle of the lead screw 124.

The motor output torque of the driving part 110 of the actuator 100 according to the present embodiment can be reduced and increased by a worm and worm gear mechanism, and the output torque can be vertically steered by a worm and worm gear mechanism, thereby driving the screw 124 of the transmission part 120 to rotate.

Preferably, the motor output shaft of the motor 111 of the driving part 110 of the present embodiment is perpendicular to the spindle of the lead screw 124.

Preferably, the wall of the housing 127 of the transmission unit 120 of the automatic door opening/closing actuator 100 of the present embodiment at least partially forms a uniform cross-section cavity, the pushing unit 125 includes a guide unit 1251, a guide fitting unit 1271 which is slidably and rollably fitted to the guide unit 1251 is disposed on the wall of the housing 127, and the pushing unit 125 can perform a stable linear motion in the uniform cross-section cavity based on the slidable and rollably fitted between the guide unit 1251 and the guide fitting unit 1271.

Fig. 12 shows the structure of the automatic door opening/closing actuator 100. The automatic door opening/closing actuator 100 is provided with a brake device 180.

Generally, a brake device of an automatic door opening and closing actuator is disposed at an end of a motor, but the brake device has a simple structure at the end of the motor, but has a disadvantage that a relatively large shaking amount occurs when the whole door is suspended, which affects customer satisfaction.

The brake device 180 of the present embodiment is disposed at an end of the screw 124, and provides friction force for the actuating device 100, so that the actuating device 100 can suspend the door at a certain position, and has a good customer sensing experience. According to the actual space layout, the brake device may be disposed at the near end of the lead screw 124 close to the vehicle door, or may be disposed at the far end of the lead screw 124 far from the vehicle door. The proximal end and the distal end refer to the areas of the screw excluding the areas where the pushing part is engaged, and the areas can be on the screw or outside the screw, such as the direction extending along the axis of the screw.

The brake device is arranged at the end part of the screw rod. This has the advantage that the influence of the play between the 3 gear transmissions on the screw can be eliminated. This is a resistance force that is set so that the lead screw is always kept from being reversely driven by the nut (pushing portion) under the braking force.

However, if the brake is arranged at the end of the motor, the screw rod can rotate a little under the condition that the screw rod is driven by the nut. Because the lead screw rotates, drives second gear, and second gear drives the third gear and arrives the brake again, because every gear drive in-process all has a bit clearance, leads to the lead screw to rotate just can really let the brake stop a bit angle, will lead to the door to have great rocking like this.

The brake device can be an electronic brake or a mechanical brake. The electrical brake generates frictional force when energized, and the mechanical brake provides a continuous frictional resistance to actuator 100.

The brake device 180 includes a housing 181, a brake shaft 182, a brake section 183, and a pressure spring section 184, wherein the housing 181 may be directly provided on the housing 140 of the door opening/closing actuator 100, or may be mounted on the housing 140 as a separate component. The brake shaft 182 of the brake device may be coupled to the lead screw 124 via a coupling or other coupling member, and may also be directly disposed on the lead screw 124 as an integral component for space and cost savings. The pressure elastic part 184 provides pressure to the braking part 183, and the pressure of the pressure elastic part can be adjusted to realize different pressures, i.e. generate different frictional forces. The pressure elastic portion may be a rubber elastic body or other elastic member, but preferably the pressure elastic portion is a compression coil spring.

Referring to fig. 13, the braking portion with a mechanical braking apparatus of the present disclosure preferably includes a braking portion 1831, a braking portion 1832, and a pressure elastic portion 184, and the pressure elastic portion 184 applies pressure to the braking portion 1831 and the braking portion 1832 so that a frictional force can be generated therebetween when the braking portion 1831 rotates with respect to the braking portion 1832.

In one example of a simplified structure, the brake shaft in the brake device may be eliminated. For example, the brake shoe is fixed directly to the end of the spindle. In another example of the simplified structure, the brake portion and the transmission gear at the end of the lead screw may be integrated, and the transmission gear may be the brake portion. By analogy, the pressure elastic part can be directly pressed on the brake part, so that the brake part is saved.

In the simplest scheme, the pressure elastic part can be a cylindrical elastic piece which is directly contacted with the surface of the screw rod to generate friction force, namely, the pressure elastic part is provided with a brake part and integrated together. These solutions are all within the scope of protection of this patent.

The braking portion 1831 of the mechanical braking device 180 can rotate along with the screw 182, and the braking portion 1832 of the mechanical braking device 180 does not rotate along with the screw 182.

In some embodiments of the present disclosure, it is preferable that the brake part 1831 of the mechanical brake device 180 has a spline structure that can be penetrated by the brake shaft 182, so that the brake part 1831 can be driven by the rotating action of the brake shaft 182.

The mechanical brake device 180 of the present disclosure realizes different frictional force outputs by adjusting the pressure applied to the brake actuator 1831 and the brake actuator 1832 by the pressure spring 184.

With continued reference to fig. 13, the mechanical brake assembly 180 also preferably includes a brake spacer 1833, and the brake spacer 1833 is disposed between the brake actuator 1831 and the brake actuator 1832.

As shown in fig. 13, the mechanical brake device 180 of the present disclosure includes one or more sets of a brake actuator 1831, a brake spacer 1833, and a brake actuator 1832 to achieve one or more frictional force adjustments. Preferably, the brake isolator 1833 is made of carbon fiber.

The mechanical brake device 180 of the present disclosure can provide stable internal resistance output at different ambient temperatures, ensuring that the vehicle door can hover to any opening angle.

Fig. 14 shows a structure of an automatic door opening/closing actuator 100 according to still another embodiment of the present disclosure. The automatic door opening/closing actuator 100 according to the present embodiment includes: drive unit 110, transmission unit 120, and actuator 130. The driving part 110 can be arranged at an angle based on the lead screw of the motor and the transmission part. Preferably, the motor output shaft of the motor is arranged perpendicular to the spindle of the lead screw, so that the transmission mechanism can be simplified. The transmission part 120, the transmission part 120 includes a lead screw disposed in the housing and a pushing part in threaded fit with the lead screw, and the transmission part can convert the rotation motion of the lead screw received from the driving part into the linear motion of the pushing part through the threaded fit of the lead screw and the pushing part. And the actuating mechanism 130 comprises an actuating rod, a first end part of the actuating rod is connected with the pushing part, and a second end part of the actuating rod is connected (hinged) with the body of the motor vehicle. The actuating lever drives a door of the motor vehicle based on the linear motion of the pushing portion, so that the door is opened or closed with respect to the vehicle body.

The actuator 100 for automatically opening and closing the door of the present embodiment is provided with a brake device (not shown in fig. 14) at the end of the screw of the transmission part, and may be provided at the right end of the screw shown in the figure, for example. Preferably, the brake device is a mechanical brake device, and the specific description and setting of the brake device and the like may be the same as the previous description, and are not described again here.

An automotive vehicle according to an embodiment of the present disclosure includes: at least one vehicle door; a vehicle body; and the automatic door opening and closing actuator 100 of any one of the above embodiments, the automatic door opening and closing actuator 100 is provided between the door and the vehicle body so that the door is opened or closed with respect to the vehicle body.

In the description of the present specification, reference to the description of "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 refer to 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/modes or examples and features of the various embodiments/modes or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

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 to implicitly indicate 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, "plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

It will be understood by those skilled in the art that the foregoing embodiments are provided merely for clarity of explanation 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.

Claims

1. An actuator for automatically opening and closing a vehicle door, comprising:

a drive section including a drive motor, the drive section being capable of outputting a rotational motion based on the drive motor;

the transmission part comprises a lead screw and a pushing part in threaded fit with the lead screw, and the transmission part can convert the rotation motion of the lead screw received from the driving part into the linear motion of the pushing part through the threaded fit of the lead screw and the pushing part;

the actuating mechanism comprises an actuating rod, a first end part of the actuating rod is connected with the pushing part, a second end part of the actuating rod is connected with the body of the motor vehicle, and the actuating rod drives a door of the motor vehicle based on the linear motion of the pushing part so that the door is opened or closed relative to the body of the motor vehicle;

the wall of the shell at least partially forms a cavity, the pushing part comprises a guide part, a guide matching part matched with the guide part in a sliding/rolling mode is arranged on the wall of the shell, and the pushing part can perform stable linear motion in the cavity based on the sliding/rolling matching of the guide part and the guide matching part; and

a waterproof member provided to shield the water discharge hole of the housing so as to prevent external water from entering the chamber in which the actuating lever is located.

2. The actuator according to claim 1, wherein the drain holes are provided on both sides of a moving direction of the actuating lever in a chamber in which the actuating lever is located.

3. The automatic door opening/closing actuator according to claim 1, wherein the waterproof member extends from an upper portion of the drain hole to an outer side of the drain hole so as to enable drainage and prevent water from entering the chamber.

4. The automatic door opening/closing actuator according to claim 1, wherein the waterproof member is a curtain member extending from an upper portion of the drain hole to an outer side of the drain hole.

5. The automatic door opening and closing actuator according to any one of claims 1 to 4, wherein a stopper portion is provided at an end of the actuating lever adjacent to the pushing portion to prevent the door from being opened excessively.

6. The automatic door opening and closing actuator according to claim 5, wherein the stopper is a convex feature perpendicular to the surface of the actuator rod.

7. The automatic opening and closing actuator for vehicle doors according to any one of claims 1 to 4, wherein a projection of the actuator onto a common plane in which a spindle of a lead screw of the transmission portion and a motor output shaft of a drive motor of the drive portion are located is located between the spindle of the lead screw of the transmission portion and the motor output shaft of the drive motor of the drive portion.

8. The automatic door opening and closing actuator according to any one of claims 1 to 4, further comprising a door mounting bracket having one end fixedly connected to a door.

9. The automatic opening and closing actuator for vehicle door according to any one of claims 1 to 4, wherein the output shaft of the driving motor is not on the same axis with the spindle of the lead screw, and the output shaft of the driving motor is parallel or approximately parallel with the spindle of the lead screw.

10. An actuator for automatically opening and closing a vehicle door, comprising:

a drive section including a motor, the drive section being capable of outputting a rotational motion based on the motor;

the transmission part comprises a shell and a lead screw arranged in the shell, and receives the rotation action of the driving part, converts the rotation action of the driving part into linear motion and transmits the linear motion to the vehicle door, so that the automatic opening and closing motion of the vehicle door is realized;

and the brake device is arranged at the end part of the lead screw of the transmission part, can generate resistance and transmits the resistance to the lead screw.

11. The vehicle door automatic opening and closing actuator according to claim 10, wherein the brake device is coupled to the screw.

12. The vehicle door automatic opening and closing actuator according to claim 10, wherein the brake device is a mechanical brake device for providing a continuous frictional resistance.

13. The actuator for automatically opening and closing a vehicle door according to claim 12, wherein a braking portion and a pressure spring portion are provided in the mechanical brake device, the pressure spring portion provides a pressure to the braking portion, and a part of the pressure spring portion is configured as the braking portion.

14. The actuator of claim 13, wherein the brake part of the mechanical brake device is a moving part and a fixed part, wherein the moving part rotates with the screw shaft, and the fixed part does not rotate with the screw shaft.

15. The vehicle door automatic opening and closing actuator according to claim 14, wherein the brake device includes a partition portion provided between the movable portion and the fixed portion.

16. The vehicle door automatic opening and closing actuator according to claim 12, wherein the mechanical brake device is provided with a brake shaft having the same rotational axis core as the lead screw.

17. The automatic door opening and closing actuator according to claim 16, wherein a brake shaft of the mechanical brake device is integrally formed to a lead screw of the transmission section.

18. The automatic opening/closing actuator for vehicle doors according to claim 16 or 17, wherein said braking means comprises one or more sets of moving and fixed parts to adjust the frictional force.

19. The vehicle door automatic opening/closing actuator according to claim 10, wherein the transmission section further includes a pushing section that enables the transmission section to convert a rotational motion of the lead screw received from the driving section into a linear motion of the pushing section by the lead screw being engaged with a thread of the pushing section.

20. The actuator of claim 19, further comprising an actuator including an actuator rod, a first end of the actuator rod being connected to the pushing portion, and a second end of the actuator rod being hinged to the body of the vehicle.

21. The vehicle door automatic opening and closing actuator according to claim 20, wherein a projection of the actuator onto a common plane where a spindle of the lead screw of the transmission portion and the motor output shaft of the motor of the driving portion are located is located between the spindle of the lead screw of the transmission portion and the motor output shaft of the motor of the driving portion.

22. The vehicle door automatic opening and closing actuator according to claim 10, wherein a waterproof member is provided on a housing of the vehicle door automatic opening and closing actuator, and the waterproof member is provided to shield a drain hole of the housing so as to prevent water from outside from entering a chamber in which the actuator lever is located.

23. The vehicle door automatic opening and closing actuator according to claim 10, wherein a motor output shaft of the motor is disposed in parallel with a spindle of the lead screw.

24. An actuator for automatically opening and closing a vehicle door, comprising:

the transmission part comprises a shell, a lead screw arranged in the shell and a pushing part in threaded fit with the lead screw, and the transmission part can convert the rotation action of the lead screw received from the driving part into the linear action of the pushing part through the threaded fit of the lead screw and the pushing part; the actuating mechanism comprises an actuating rod, a first end part of the actuating rod is connected with the pushing part, and a second end part of the actuating rod is connected with the body of the motor vehicle; and

a brake device arranged at the end part of the lead screw of the transmission part,

the actuating lever drives a door of the motor vehicle based on the linear motion of the pushing portion so that the door is opened or closed with respect to the vehicle body,

and an included angle is formed between a motor output shaft of a motor of the driving part and a mandrel of the lead screw.

25. The vehicle door automatic opening and closing actuator according to claim 24, wherein the brake device is a mechanical brake device.

26. The actuator for automatically opening and closing the vehicle door according to claim 25, wherein a braking portion and a pressure spring portion are provided in the mechanical brake device.

27. The actuator for automatically opening and closing a vehicle door according to claim 25, wherein the braking portion of the mechanical brake device is a movable portion and a fixed portion, wherein the movable portion is rotatable together with the screw shaft, and the fixed portion is not rotatable with the screw shaft.

28. The automatic door opening and closing actuator according to claim 24, further comprising a waterproof member provided to shield a drain hole of the housing so as to prevent water from the outside from entering a chamber in which the actuator lever is located.

29. A motor vehicle, comprising:

a vehicle door;

a vehicle body; and

the vehicle door automatic opening and closing actuator according to any one of claims 1 to 28, which is provided between the vehicle door and a vehicle body to open or close the vehicle door with respect to the vehicle body.