Cover plate opening-and-closing actuator, and vehicle

Abstract

A cover plate opening-and-closing actuator (800), which is configured to be in driving connection with a rotating shaft of a charging-port cover plate (500). The actuator comprises an output shaft (107) and a clutch mechanism (108), wherein the output shaft (107) is configured to output a driving force to the rotating shaft; and the clutch mechanism (108) comprises a first fluted disk (1081) and a second fluted disk (1082), both of which can be in a coupling state or a decoupling state, the first fluted disk (1081) being sleeved on the output shaft (107) and transmitting a force to the rotating shaft, the second fluted disk (1082) being configured to be connected to a driving member (200), the second fluted disk (1082) being sleeved on the output shaft (107), and the second fluted disk being capable of sliding in a direction away from the first fluted disk (1081) along the output shaft (107) when being decoupled from the first fluted disk (1081). Further disclosed is a vehicle comprising the cover plate opening-and-closing actuator (800). In the cover plate opening-and-closing actuator and the vehicle, a connection relationship between the fluted disks and the output shaft is optimized by means of providing the clutch mechanism, such that the sliding process of the fluted disks on the output shaft is smoother, and thus the clutch process of the clutch mechanism is not prone to jamming, thereby lowering a requirement for the machining precision of the clutch mechanism and the output shaft and in turn reducing manufacturing costs of a product, improving the reliable performance of the product, prolonging the service life of the product, and improving the user experience.

Description

Cover opening and closing actuator, vehicle Technical Field

[0001] The present application generally relates to the technical field of vehicle accessories, and more particularly to a cover opening and closing actuator and a vehicle. Background Art

[0002] Energy access flaps are commonly found on passenger cars and buses, including those for electric vehicles like the charging port and fuel tanks. Traditionally, these flaps require manual operation, making them prone to being left closed.

[0003] Summary of the Invention

[0004] The Summary of the Invention introduces a series of simplified concepts that will be further described in the Detailed Description of the Invention. The Summary of the Invention of this application is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0005] To at least partially address the above-mentioned issues, the first aspect of the present application provides a cover opening and closing actuator, which is configured to be driven and connected to a rotating shaft of a charging port cover, comprising:

[0006] an output shaft for outputting driving force to the rotating shaft; and

[0007] The clutch mechanism includes:

[0008] a first toothed disc, the first toothed disc being mounted on the output shaft, the first toothed disc and the output shaft being connected by structural cooperation and transmitting force to the rotating shaft, and

[0009] a second toothed disc, the second toothed disc being used to connect with the driving member, the second toothed disc being sleeved on the output shaft and being able to slide relative to the output shaft;

[0010] The first gear disc and the second gear disc can be in a coupled state or a decoupled state. When the first gear disc and the second gear disc change from the coupled state to the decoupled state, the second gear disc can slide along the output shaft in a direction away from the first gear disc, thereby completing the decoupling of the first gear disc and the second gear disc.

[0011] Optionally, the output shaft includes a first connecting section, a limiting plane is provided on the first connecting section, the first gear plate is provided with a connecting hole, the first gear plate is connected to the first connecting section through the connecting hole, and the shape of the connecting hole matches the structure of the first connecting section.

[0012] Optionally, a limiting plane is provided on each side of the first connecting section, the connecting hole is a flat hole, and the inner wall of the connecting hole abuts against the limiting plane, so that the first gear disk and the output shaft remain relatively fixed in the circumferential direction.

[0013] Optionally, the cover opening and closing actuator further includes a first gear, which is used to connect to the driving member, the first gear is fixedly connected to the second gear disc, the first gear is mounted on the output shaft, and can slide synchronously with the second gear disc relative to the output shaft.

[0014] Optionally, the cover opening and closing actuator further includes:

[0015] An elastic component is sleeved on the output shaft and elastically pushes the first gear to provide a pre-tightening force for the second gear disc toward the first gear disc.

[0016] Optionally, the cover opening and closing actuator further includes:

[0017] a second gear meshing with the first gear, the second gear being axially displaceable relative to the first gear, and the second gear being configured to be connected to the driving member; and

[0018] An intermediate shaft is coaxially fixedly connected to the second gear.

[0019] Optionally, the cover opening and closing actuator further includes:

[0020] An elastic component is sleeved on the output shaft and elastically pushes the second gear disc to provide a pre-tightening force for the second gear disc toward the first gear disc.

[0021] Optionally, the cover opening and closing actuator further includes:

[0022] a first worm gear pair connected to the driving member and configured to receive torque from the driving member; and

[0023] The second worm gear pair is connected to the first worm gear pair and the intermediate shaft respectively.

[0024] Optionally, the first worm gear pair includes:

[0025] a first worm gear fixedly connected coaxially with the output shaft of the driving member; and

[0026] The first worm wheel is engaged with the first worm, and the first worm wheel is also connected to the second worm wheel pair.

[0027] Optionally, the second worm gear pair includes:

[0028] a second worm, coaxially fixedly connected to the first worm wheel; and

[0029] The second worm gear is engaged with the second worm, and the second worm gear is also coaxially fixedly connected to the intermediate shaft.

[0030] Optionally, a slot is provided at the first end of the output shaft, an open retaining ring is provided in the slot, and the open retaining ring holds the first gear disc on the first connecting section;

[0031] The second end of the output shaft is provided with a spline, and the spline is used to connect to the rotating shaft of the cover plate.

[0032] Optionally, the cover opening and closing actuator further includes:

[0033] The output shaft, the clutch mechanism and the driving component are all arranged in the housing, and the housing is used to install and fix the output shaft, the clutch mechanism and the driving component near the cover plate.

[0034] Optionally, a positioning sleeve and a positioning pin are provided at the bottom of the housing, and the positioning sleeve and the positioning pin are used for positioning during installation so that the output shaft is coaxial with the rotating shaft of the cover plate, and the spline is located inside the positioning sleeve.

[0035] A second aspect of the present application provides a vehicle, comprising a cover plate, a fuel tank and / or a battery pack, wherein the cover plate is a fuel tank cover plate and / or a charging port cover plate.

[0036] It also includes a cover opening and closing actuator according to any one of the above technical solutions, and the cover opening and closing actuator drives a rotating shaft connected to the cover.

[0037] Optionally, the vehicle further comprises:

[0038] A position sensor is provided near the rotation axis of the cover plate and is used to detect the coupling state and the decoupling state of the clutch mechanism of the cover plate opening and closing actuator. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The following drawings of the embodiments of the present application are hereby incorporated as part of the present application for understanding the present application. The drawings show the embodiments of the present application and their descriptions, and are used to explain the principles of the present application. In the drawings,

[0040] FIG1 is a perspective view of the internal structure of a cover opening and closing actuator according to a preferred embodiment of the present application;

[0041] FIG2 is a front view of a clutch mechanism and an output shaft of a cover opening and closing actuator according to a preferred embodiment of the present application;

[0042] FIG3 is an exploded view of a clutch mechanism and an output shaft of a cover opening and closing actuator according to a preferred embodiment of the present application;

[0043] FIG4 is a front view of a clutch mechanism, an output shaft, and a gear pair of a cover opening and closing actuator according to a preferred embodiment of the present application, in which the clutch mechanism is in a coupled state;

[0044] FIG5 is a front view of a clutch mechanism, an output shaft, and a gear pair of a cover opening and closing actuator according to a preferred embodiment of the present application, in which the clutch mechanism is in a decoupled state;

[0045] FIG6 is a perspective view of a housing of a cover opening and closing actuator according to a preferred embodiment of the present application;

[0046] FIG7 is a perspective view of a cover opening and closing actuator according to a preferred embodiment of the present application;

[0047] FIG8 is a perspective view of a cover according to a preferred embodiment of the present application, in which a cover opening and closing actuator is provided;

[0048] FIG9 is a schematic diagram of a control circuit of a motor of a cover opening and closing actuator according to a preferred embodiment of the present application.

[0049] Description of reference numerals:

[0050] 100: Transmission mechanism 101: First worm

[0051] 102: First worm gear 103: Second worm

[0052] 104: Intermediate shaft 105: Second worm gear

[0053] 106: Second gear 107: Output shaft

[0054] 1071: protrusion 1072: sealing groove

[0055] 1073: Spline 1074: Slot

[0056] 1075: First connecting segment 1076: Second connecting segment

[0057] 1077: Limit plane 1078: First end of output shaft

[0058] 1079: Second end of output shaft 108: Clutch mechanism

[0059] 1081: First sprocket 1082: Second sprocket

[0060] 1083: Connecting hole 1084: First coupling tooth

[0061] 1085: Second coupling tooth 109: First gear

[0062] 110: Elastic member 111: Open retaining ring

[0063] 112: Sealing ring 118: First worm gear pair

[0064] 119: Second worm gear pair 120: Gear pair

[0065] 200: driving component 300: control circuit board

[0066] 400: Shell 401: First shell

[0067] 402: Second housing 4021: Positioning sleeve

[0068] 4022: Positioning pin 4023: Connection terminal

[0069] 4024: Connecting column 4025: Fixing ear

[0070] 500: Cover plate 501: First screw

[0071] 502: Second screw 600: Position sensor

[0072] 700: Trigger mechanism 800: Cover opening and closing actuator DETAILED DESCRIPTION

[0073] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present application. However, it will be apparent to those skilled in the art that the present application can be implemented without one or more of these details. In other examples, some technical features well known in the art are not described in order to avoid confusion with the present application.

[0074] In order to thoroughly understand the present application, a detailed description will be provided in the following description. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. Obviously, the implementation of the embodiments of the present application is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present application are described in detail below, but in addition to these detailed descriptions, the present application may also have other embodiments.

[0075] Ordinal numbers such as “first” and “second” cited in this application are merely identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term “first component” itself does not imply the existence of a “second component”, and the term “second component” itself does not imply the existence of a “first component”.

[0076] It should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside" and similar expressions used in this application are for illustrative purposes only and are not restrictive.

[0077] The present application discloses a cover opening and closing actuator and a vehicle having the same.

[0078] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings.

[0079] As shown in Figures 1, 2, 3 and 8, in a preferred embodiment, the cover opening and closing actuator 800 is used to be connected to the rotating shaft drive of the charging port cover 500. The cover opening and closing actuator 800 includes an output shaft 107 and a clutch mechanism 108. Among them, the output shaft 107 is used to output driving force to the rotating shaft of the cover 500. The clutch mechanism 108 includes a first gear disc 1081 and a second gear disc 1082. The first gear disc 1081 and the second gear disc 1082 can be in a coupled state or in a decoupled state. The first gear disc 1081 is mounted on the output shaft 107, and the first gear disc 1081 and the output shaft 107 are kept connected by structural matching and transmit force to the rotating shaft. The second gear disc 1082 is used to connect to the driving member 200. The second gear disc 1082 is mounted on the output shaft 107 and can slide relative to the output shaft 107. When the first toothed disc 1081 and the second toothed disc 1082 change from the coupled state to the decoupled state, the second toothed disc 1082 can slide along the output shaft 107 in a direction away from the first toothed disc 1081 , thereby completing the decoupling of the first toothed disc 1081 and the second toothed disc 1082 .

[0080] In this embodiment, the first toothed disc 1081 and the output shaft 107 can be maintained in relative circumferential position through structural relationships such as a flattened structure, a raised / recessed structure, a pin connection, and an interference fit. In the decoupled state, the second toothed disc 1082 does not need to transmit power to the output shaft 107 and is simply fitted onto the output shaft 107. Because the output shaft 107 is a smooth cylindrical structure, the second toothed disc 1082 slides more smoothly on the output shaft 107, making it less susceptible to jamming.

[0081] The cover opening and closing actuator in this embodiment has a clutch mechanism that optimizes the connection between the gear disc and the output shaft. The sliding process of the gear disc on the output shaft is smoother, and the clutch mechanism is less likely to get stuck during the clutch process, thereby reducing the requirements for the processing accuracy of the clutch mechanism and the output shaft, reducing the manufacturing cost of the product, improving the reliability of the product, extending the service life of the product, and enhancing the user experience.

[0082] The prior art provides an electric actuator for an energy port cover, in which a driving mechanism inside the actuator can drive the opening and closing of the fuel tank cover or the charging tank cover through an output device. The fuel tank cover or the charging tank cover can be manually opened and closed by manually pressing the fuel tank cover or the charging tank cover to apply a certain torque. In order to meet the requirements of automatic opening and closing and manual opening and closing, a clutch mechanism is provided inside the electric actuator. The clutch mechanism is in a coupled state during automatic opening and closing, and in a decoupled state during manual opening and closing. The clutch mechanism in the prior art relies on the movement of a toothed disc that transmits torque to the output shaft to complete the clutch. However, there is a matching structure between the toothed disc and the output shaft, and jamming problems are prone to occur during the clutch movement, resulting in low reliability.

[0083] As shown in Figure 3, the output shaft 107 includes a first connecting section 1075 and a second connecting section 1076 connected to each other along the axial direction. The first connecting section 1075 is provided with a limiting plane 1077. The first gear plate 1081 is provided with a connecting hole 1083, the shape of which matches the structure of the first connecting section 1075.

[0084] A limiting plane 1077 can be set on the first connecting section 1075. At this time, the internal connecting hole 1083 of the first toothed disc 1081 is a D-shaped hole. Through the connection relationship between the connecting hole 1083 and the first connecting section 1075 (specifically, the limiting plane 1077), the first toothed disc 1081 and the output shaft 107 can remain relatively fixed in the circumferential direction and can rotate synchronously.

[0085] In this embodiment, the second gear disc 1082 is mounted on the second connecting section 1076 of the output shaft 107. The second connecting section 1076 is constructed as a smooth cylindrical structure, so that the second gear disc 1082 slides on the second connecting section 1076 more smoothly and is less likely to get stuck. If the first gear disc 1081 is designed to slide along the first connecting section 1075 to couple or decouple the first gear disc 1081 with the second gear disc, because the first connecting section 1075 has a flat surface or steps instead of a smooth cylindrical structure, the sliding process is prone to getting stuck, and the processing precision requirements of the first connecting section 1075 and the first gear disc 1081 are also relatively high.

[0086] For example, a limiting plane 1077 is provided on both sides of the radial direction of the first connecting section 1075, and the connecting hole 1083 of the first gear plate 1081 is a flat hole. The inner wall of the connecting hole 1083 abuts against the limiting plane 1077, so that the first gear plate 1081 and the output shaft 107 remain relatively fixed in the circumferential direction.

[0087] The two limiting planes 1077 on the first connecting section 1075 are symmetrically arranged. At this time, the internal connecting hole 1083 of the first toothed disc 1081 is a flat hole. Through the connection relationship between the connecting hole 1083 and the first connecting section 1075, the first toothed disc 1081 and the output shaft 107 can remain relatively fixed in the circumferential direction and can rotate synchronously.

[0088] The first connecting section 1075 can be considered to be formed by milling a flat surface 1077 (step) on the output shaft 107. Either one flat surface 1077 (step) or two symmetrical flat surfaces 1077 (steps) can be milled, and can form a mating relationship with the internal shaft hole 1083 of the first gear plate 1081. It is understood that in other embodiments, there can be multiple limiting flat surfaces 1077, as long as the connection hole 1083 on the first gear plate 1081 has a shape that matches it.

[0089] Preferably, the cover opening and closing actuator 800 further includes an elastic member 110 , which is sleeved on the output shaft 107 and elastically pushes the second gear disc 1082 to provide a pre-tightening force for the second gear disc 1082 toward the first gear disc 1081 .

[0090] The elastic member 110 can be a spring or other suitable elastic material. A corresponding protrusion 1071 is provided on the output shaft 107 to limit the position of the elastic member 110. One end of the elastic member 110 abuts against the second toothed disc 1082, while the other end abuts against the protrusion 1071. This constantly applies a preload force to the second toothed disc 1082, providing a reset force for the second toothed disc 1082.

[0091] In this embodiment, the output shaft 107 and the clutch mechanism 108 can both be regarded as mechanisms in the transmission mechanism 100 , and the driving component 200 outputs driving force to the rotating shaft of the charging port cover 500 through the transmission mechanism 100 .

[0092] As shown in Figure 4 , when the driving member 200 drives the output shaft 107 to rotate, the clutch mechanism 108 is in a coupled state. As shown in Figure 5 , when the output shaft 107 is driven by an external force, and the cover 500 is opened or closed by the external force, the clutch mechanism 108 can be in a decoupled state.

[0093] The driving member 200 is usually an electric motor. The cover opening and closing actuator 800 is further provided with a control circuit board 300 for controlling the operation of the motor. The motor can open the cover 500 by rotating forward and close the cover 500 by rotating reverse.

[0094] As shown in Figures 2 and 3, a first coupling tooth 1084 is provided on one end face of the first toothed disc 1081. A second coupling tooth 1085 is provided on the end face of the second toothed disc 1082 adjacent to the first toothed disc 1081 for coupling with the first coupling tooth 1084.

[0095] The coupling teeth 1084 and 1085 are, for example, in the shape of an isosceles trapezoid or a circular arc, which can be used for transmission during coupling and are also beneficial for power decoupling.

[0096] The coupling teeth 1084 and 1085 can adopt four sets of concave-convex structures. Within the travel range of the cover 500, only one engagement is required to complete the forced opening and stop near the opening point; after forced opening, forced closing can also be performed to ensure that the cover 500 can be smoothly closed into place.

[0097] As shown in Figures 2 and 3, the transmission mechanism 100 further includes a first gear 109. The first gear 109 is configured to connect to the drive member 200. The first gear 109 is fixedly connected to the second toothed disc 1082 and is configured to transmit power to the second toothed disc 1082, which in turn transmits power to the first toothed disc 1081 via the second toothed disc 1082, and further transmits power to the output shaft 107 via the first toothed disc 1081.

[0098] For example, the second gear wheel 1082 and the first gear 109 can be made into one piece, and have reliable synchronous movement and synchronous rotation performance.

[0099] In such an embodiment, the elastic member 110 is mounted on the second connecting section 1076 , elastically pushing the first gear 109 , and providing a pre-tightening force for the second gear disc 1082 toward the first gear disc 1081 through the first gear 109 .

[0100] The elastic member 110 can be a spring or other suitable elastic material. A corresponding protrusion 1071 is provided on the output shaft 107 to limit the position of the elastic member 110. One end of the elastic member 110 abuts the first gear 109, while the other end abuts the protrusion 1071. This constantly applies a preload force to the first gear 109 and the second gear disc 1082, providing a reset force for the second gear disc 1082.

[0101] As shown in Figure 1, the transmission mechanism 100 further includes a second gear 106 and an intermediate shaft 104. The second gear 106 meshes with the first gear 109, and the first gear 109 can be axially displaced relative to the second gear 106. The intermediate shaft 104 is coaxially fixedly connected to the second gear 106.

[0102] The second gear 106 and the first gear 109 are both cylindrical spur gears, so they can slide relative to each other in the axial direction while being engaged.

[0103] When the gears are meshing, due to the requirement of overlap, more than one line is in contact at the same time, which increases the contact area and reduces the contact stress between the two. The high-precision characteristics between the gears can ensure a stable friction coefficient during the sliding process, so the opening and closing force when manually opening and closing the cover 500 is more stable and the feel is better.

[0104] As shown in FIG. 1 , the transmission mechanism 100 further includes a first worm gear pair 118 and a second worm gear pair 119 .

[0105] The first worm gear pair 118 is connected to the driving member 200 for receiving torque from the driving member 200 . The driving member 200 first transmits the torque to the first worm gear pair 118 .

[0106] The second worm gear pair 119 is connected to the first worm gear pair 118 and the intermediate shaft 104 respectively.

[0107] The first worm gear pair 118 or the second worm gear pair 119 has a self-locking function, allowing the drive member 200 to output torque to the output shaft 107 for driving. If the driving torque comes from the rotating shaft of the cover plate 500, the first worm gear pair 118 or the second worm gear pair 119 will self-lock. When self-locking, the torque forces the clutch mechanism 108 to decouple the power, thereby providing appropriate opening resistance for the cover plate 500, effectively preventing the cover plate 500 from being accidentally opened by occasional external force, and has the characteristics of simplified structure and reliable performance.

[0108] Preferably, the second worm gear pair 119 has a self-locking function because the second worm gear pair 119 is directly connected to the gear pair 120 (the first gear 109 and the second gear 106 ) and is more responsive to the driving torque from the output shaft 107 .

[0109] When the driving torque comes from the output shaft 107 , it is usually a case of manually opening or closing the cover 500 . In this case, an appropriate pulling force or pushing force needs to be applied to the cover 500 to open or close the cover 500 .

[0110] The worm gear pairs 118 and 119 mentioned above refer to a combination of a worm wheel and a worm that mesh with each other, and a gear pair refers to a combination of multiple gears that mesh with each other.

[0111] As shown in Figures 1, 2, and 3, for example, the first worm gear pair 118 includes a first worm 101 and a first worm wheel 102. The first worm 101 is fixedly connected coaxially with the shaft of the driving member 200. The first worm wheel 102 meshes with the first worm 101. The first worm wheel 102 is also connected to the second worm gear pair 119.

[0112] The first worm gear pair 118 has a self-locking function, allowing torque to be output from the first worm 101 to the first worm wheel 102 for driving. However, when driving in the reverse direction, it will self-lock, and the first worm wheel 102 will be unable to drive the first worm 101 and the driving member 200. The self-locking principle is that when the lead angle of the worm is less than the equivalent friction angle between the worm wheel teeth, the mechanism has self-locking properties and can achieve reverse self-locking. That is, only the worm can drive the worm wheel, and the worm wheel cannot drive the worm.

[0113] For example, as shown in FIG1 , the second worm gear pair 119 includes a second worm 103 and a second worm wheel 105. The second worm 103 is fixedly connected to the first worm wheel 102 coaxially. The axial direction of the second worm 103 is perpendicular to the axial direction of the first worm 101. The second worm wheel 105 meshes with the second worm 103. The second worm wheel 105 is also fixedly connected to the intermediate shaft 104 coaxially.

[0114] The first worm gear 102 has a mounting hole in its center that fits over the second worm gear 103. A mating flat surface is provided within the mounting hole. A mating step is provided on the second worm gear 103 to secure it circumferentially relative to the first worm gear 102. A nut or split retaining ring can be provided at the end of the second worm gear 103 to retain the first worm gear 102 in position, achieving coaxial relative fixation between the two.

[0115] The first worm 101 and the second worm 103 are arranged in an L shape, which is more conducive to platform application, and the transmission mechanism 100 does not occupy additional axial space (the axial direction of the second worm 103).

[0116] The axial direction of the intermediate shaft 104 may be parallel to the axial direction of the first worm 101 , which is beneficial to reducing the volume of the transmission mechanism 100 and the volume of the cover opening and closing actuator 800 as much as possible, making it easier to install on the vehicle.

[0117] The second worm gear 105 has a mounting hole in its center with a mating flat surface within it. A mating step is provided on the intermediate shaft 104 to secure the second worm gear 105 circumferentially. Nuts or split retaining rings can be placed at the ends of the intermediate shaft 104 to position the second worm gear 105, thereby securing the two worm gears coaxially relative to each other.

[0118] A mounting hole with a mating flat surface is provided in the center of the second gear 106. A mating step is provided on the intermediate shaft 104 to secure the second gear 106 circumferentially. Nuts or split retaining rings can be provided at the ends of the intermediate shaft 104 to retain the second worm gear 105, thereby securing the two coaxially relative to each other.

[0119] The second worm gear 105 and the second gear 106 rotate synchronously. A step or a gasket is provided between the second worm gear 105 and the second gear 106 on the intermediate shaft 104 to separate the second worm gear 105 and the second gear 106 to prevent the two from affecting each other.

[0120] The clutch mechanism 108 and the first gear 109 are combined on a shaft of the final transmission, ensuring the stability of the torque output.

[0121] As shown in Figures 4 and 8, when not driven, the first gear disc 1081 and the second gear disc 1082 are in a coupled state. When the cover 500 needs to be automatically opened or closed, the driving member 200 is activated, and the torque is transmitted to the output shaft 107 through the first worm gear pair 118, the second worm gear pair 119, the gear pair 120, and the clutch mechanism 108 in sequence. The output shaft 107 rotates forward or reverse, driving the cover 500 to open or close.

[0122] As shown in Figures 5 and 8, when the cover plate 500 needs to be opened manually, a pulling force is applied to the cover plate 500, and the torque is transmitted to the output shaft 107 through the cover plate 500 and the rotating shaft of the cover plate 500 in turn. At this time, the first worm gear pair and the second worm gear pair are self-locking, and the torque cannot be transmitted backward through the gear pair 120, which will force the first gear disc 1081 and the second gear disc 1082 to be power-decoupled. The second gear disc 1082 will slide toward the end of the output shaft 107 (the end where the output shaft 107 is connected to the rotating shaft of the cover plate 500, that is, the end 1079 where the spline 1073 is set), and the first gear 109 and the second gear 106 will also slide relative to each other. The resistance generated in multiple places reacts to the cover plate 500, generating a certain resistance to the opening process of the cover plate 500.

[0123] Continuously moving the cover 500 approximately 90° causes the clutch mechanism 108 to enter the next coupling position. At this point, the cover 500 is nearly fully open. Under the action of the elastic member 110, the second toothed disc 1082 automatically re-couples with the first toothed disc 1081. When manually closing the cover 500, the torque transmission method is similar to manual opening, so there is also some resistance to the closing process.

[0124] Preferably, the first end 1078 of the output shaft 107 (the end of the output shaft 107 corresponding to the first connecting section 1075 ) is provided with a slot 1074 , and an open retaining ring 111 is provided in the slot 1074 . The open retaining ring 111 limits the first gear disc 1081 and keeps the first gear disc 1081 on the first connecting section 1075 .

[0125] The first connecting section 1075 can be regarded as a step structure, and can also axially limit one end of the first gear disc 1081 , and can work together with the open retaining ring 111 to achieve relative fixation of the first gear disc 1081 and the output shaft 107 .

[0126] The split retaining ring 111 can withstand a greater axial force, so that the clutch mechanism 108 can generate a greater disengagement force.

[0127] Preferably, as shown in FIG. 2 and FIG. 3 , the second end 1079 of the output shaft 107 (the end of the output shaft 107 corresponding to the second connecting section 1076 ) is provided with a spline 1073 , and the spline 1073 is used to connect to the rotating shaft of the cover plate 500 .

[0128] A keyway is correspondingly provided on the rotating shaft of the cover plate 500. The driving connection can be achieved through the cooperation between the spline 1073 and the keyway, and it is convenient for assembly and disassembly.

[0129] As shown in FIG6 and FIG7 , the cover opening and closing actuator 800 further includes a housing 400 . The transmission mechanism 100 and the driving member 200 are both disposed inside the housing 400 . The housing 400 is used to mount and fix the transmission mechanism 100 and the driving member 200 near the cover 500 .

[0130] Inside the housing 400 , the driving member 200 , one end of the first worm 101 , both ends of the second worm 103 , both ends of the intermediate shaft 104 , and both ends of the output shaft 107 can all be installed and fixed by relying on the housing 400 to maintain relative positional relationships.

[0131] The shape of the housing 400 needs to be compatible with the transmission mechanism 100 and the driving member 200. The housing 400 includes a first shell 401 and a second shell 402. The first shell 401 is equivalent to a cover, and the second shell 402 accommodates the transmission mechanism 100, the driving member 200, and the control circuit board 300.

[0132] The side wall of the second shell 402 is provided with a fixing ear 4025 , into which screws are inserted to fix the housing 400 near the cover 500 , for example, on the base of the cover 500 .

[0133] The second shell 402 is further provided with a connecting column 4024 , which is also used to install and fix the outer shell 400 . The connecting column 4024 can be connected and fixed to the base of the cover plate 500 by a second screw 502 to improve the stability of the outer shell 400 .

[0134] Preferably, a positioning sleeve 4021 and a positioning pin 4022 are provided at the bottom of the housing 400. The positioning sleeve 4021 and the positioning pin 4022 are used for positioning during installation so that the output shaft 107 is coaxial (concentric) with the rotating shaft of the cover plate 500. The spline 1073 is located inside the positioning sleeve 4021. The rotating shaft of the cover plate 500 is not shown in FIG. 8 .

[0135] There can be multiple positioning pins 4022 set at different positions. FIG. 7 exemplarily shows one positioning pin 4022 .

[0136] The bottom of the housing 400 is further provided with a connection terminal 4023 for internally connecting the driving component 200 and the control circuit board 300 and externally connecting the power supply and the control signal line.

[0137] As shown in Figures 2 and 3, the second end 1079 of the output shaft 107 is preferably provided with a sealing groove 1072, in which a sealing ring 112 is disposed. When the transmission mechanism 100 and the drive member 200 are disposed within the housing 400, the second end 1079 of the output shaft 107 needs to extend out of the housing 400. In the extended position, the sealing ring 112 provides a seal, preventing dust and moisture, thereby ensuring long-term and reliable operation of the transmission mechanism 100 and the drive member 200.

[0138] The cover opening and closing actuator 800 also has a stall detection function. When the motor drives the cover 500 to open or close, the control circuit board 300 detects that the motor is stalled (for example, by detecting sudden changes in current and voltage to determine the stall) and immediately stops driving the motor, which can prevent the motor from being damaged by being stalled for a long time and play a role in protecting the motor.

[0139] The present application also provides a vehicle, which includes a cover plate 500, a fuel tank and / or a battery pack, and a cover plate opening and closing actuator 800 according to any of the above embodiments. The cover plate 500 is a fuel tank cover and / or a charging port cover, and the cover plate opening and closing actuator 800 drives a rotating shaft connected to the cover plate 500.

[0140] In FIG. 8 , the position of the first screw 501 corresponds to the position of the rotation axis of the cover plate 500 , and the position of the second screw 502 corresponds to the position of the connecting column 4024 .

[0141] As shown in FIG8 and FIG9 , preferably, the vehicle further includes a position sensor 600 , which is disposed near the rotation axis of the cover 500 to detect the coupling state and the decoupling state of the clutch mechanism 108 of the cover opening and closing actuator 800 .

[0142] The rotation axis of the cover plate 500 is provided with a trigger mechanism 700 corresponding to the position sensor 600, which can trigger the position sensor 600. The trigger mechanism 700 is connected to the rotation axis of the cover plate 500 through the first screw 501 and can be driven to rotate by the rotation axis of the cover plate 500.

[0143] The position sensor 600 has a single-channel Hall output or a dual-channel Hall output function, which can realize the cover 500 opening / closing function of reversing, retreating or hovering when encountering an obstacle.

[0144] When used with a sensor 600, it can identify whether the cover 500 is in a normal electric closing or forced opening state. When the cover 500 is in the open state and is electrically closed, the detection value of the sensor 600 returns to 0, and the sensor 600 is in the closed state. When the cover 500 is in the closed state and is electrically opened, the sensor 600 outputs a certain detection value, and the sensor 600 is in the open state. When the cover 500 is in the open state and is manually forced closed, the detection value of the sensor 600 does not change, and the sensor 600 is in the closed state. When the cover 500 is in the closed state and is manually forced open, the detection value of the sensor 600 does not change, and the sensor 600 is in the open state.

[0145] When used in conjunction with two sensors 600, it is possible to identify whether the door is being opened and closed electrically or manually forced. When the cover 500 is in an open state and is being closed electrically, the detection value of the sensor 600 returns to 0, the first sensor 600 is in a closed state, and the second sensor 600 is in an open state; when the cover 500 is in a closed state and is being opened electrically, the sensor 600 outputs a certain detection value, the first sensor 600 is in an open state, and the second sensor 600 is in a closed state; when the cover 500 is in an open state and is being forced closed manually, the detection value of the sensor 600 remains unchanged, the first sensor 600 is in a closed state, and the second sensor 600 is in an open state; when the cover 500 is in a closed state and is being forced opened manually, the detection value of the sensor 600 remains unchanged, the first sensor 600 is in an open state, and the second sensor 600 is in an open state.

[0146] According to the cover opening and closing actuator and vehicle of the present application, the clutch mechanism provided optimizes the connection relationship between the gear disc and the output shaft, the sliding process of the gear disc on the output shaft is smoother, and the clutch process of the clutch mechanism is less likely to get stuck, thereby reducing the requirements for the processing accuracy of the clutch mechanism and the output shaft, reducing the manufacturing cost of the product, improving the reliability of the product, extending the service life of the product, and enhancing the user experience.

[0147] When the cover is manually pried open and a certain torque is applied to drive the output shaft to rotate, the two gear discs of the clutch mechanism are dynamically decoupled, and the two gear discs change from a coupled state to a separated state. Continuous prying will cause the clutch mechanism to enter the next coupled position and re-couple dynamically. At this time, the cover is in a position close to being fully open, thereby realizing the strong opening / closing function of the cover under external force.

[0148] The cover has a self-locking function to prevent accidental opening. If the motor fails and the cover cannot be opened normally, the user needs to apply a certain external force to manually decouple the clutch mechanism and release the reverse self-locking function, so that the cover can be opened manually. This effectively prevents the cover from being accidentally opened due to accidental external forces.

[0149] The processes and steps described in all the preferred embodiments described above are merely examples. Unless adverse effects occur, various processing operations may be performed in a different order from the above process. The order of the steps in the above process may also be increased, combined, or deleted according to actual needs.

[0150] In understanding the scope of this application, the term "comprise" and its derivatives as used herein are intended to be open terms that specify the presence of recited features, elements, components, groups, wholes, and / or steps, but do not exclude the presence of other unrecorded features, elements, components, groups, wholes, and / or steps. This concept also applies to words with similar meanings, such as the terms "include," "have," and their derivatives.

[0151] As used herein, the terms "attached" or "attached" include: configurations where an element is directly secured to another element by securing it directly to the other element; configurations where an element is indirectly secured to the other element by securing it to an intermediate member that is in turn secured to the other element; and configurations where one element is integral with the other, i.e., one element is substantially a part of the other. This definition also applies to words with similar meanings such as "connect," "connect," "couple," "mount," "bond," "secure," and their derivatives. Finally, terms of degree such as "substantially," "approximately," and "approximately" as used herein represent an amount of deviation that would modify the term such that the end result would not be significantly changed.

[0152] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art in the art of this application. The terms used herein are merely for describing specific implementation purposes and are not intended to limit this application. Features described herein in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or is otherwise indicated.

[0153] The present application has been described through the above-described embodiments, but it should be understood that the above-described embodiments are for illustrative and illustrative purposes only and are not intended to limit the present application to the described embodiments. In addition, those skilled in the art will understand that the present application is not limited to the above-described embodiments, and that various variations and modifications may be made based on the teachings of the present application, all of which fall within the scope of protection claimed in the present application.

Claims

1. A cover plate opening and closing actuator (800), used for driving connection with the rotating shaft of a charging port cover plate (500), characterized in that: include: An output shaft (107) for outputting driving force to the rotating shaft; and The clutch mechanism (108) comprises: a first toothed disc (1081), wherein the first toothed disc (1081) is mounted on the output shaft (107), and the first toothed disc (1081) and the output shaft (107) are connected by structural matching and transmit force to the rotating shaft; and a second toothed disc (1082), the second toothed disc (1082) being used to be connected to the driving member (200), the second toothed disc (1082) being sleeved on the output shaft (107) and being able to slide relative to the output shaft (107), The first toothed disc (1081) and the second toothed disc (1082) can be in a coupled state or a decoupled state. When the first toothed disc (1081) and the second toothed disc (1082) change from the coupled state to the decoupled state, the second toothed disc (1082) can slide along the output shaft (107) in a direction away from the first toothed disc (1081), thereby completing the decoupling of the first toothed disc (1081) and the second toothed disc (1082).

2. The cover opening and closing actuator (800) according to claim 1, characterized in that: The output shaft (107) comprises a first connecting section (1075), and a limiting plane (1077) is provided on the first connecting section (1075). The first toothed disc (1081) is provided with a connecting hole (1083), and the first toothed disc (1081) is connected to the first connecting section (1075) through the connecting hole (1083), and the shape of the connecting hole (1083) matches the structure of the first connecting section (1075).

3. The cover opening and closing actuator (800) according to claim 2, characterized in that: A limiting plane (1077) is respectively provided on both sides of the first connecting section (1075); the connecting hole (1083) is a flat hole; the inner wall of the connecting hole (1083) abuts against the limiting plane (1077), so that the first toothed disc (1081) and the output shaft (107) remain relatively fixed in the circumferential direction.

4. The cover opening and closing actuator (800) according to any one of claims 1 to 3, characterized in that: It also includes a first gear (109), the first gear (109) is used to connect with the driving member (200), the first gear (109) is fixedly connected to the second toothed disc (1082), the first gear (109) is mounted on the output shaft (107), and can slide synchronously with the second toothed disc (1082) relative to the output shaft (107).

5. The cover opening and closing actuator (800) according to claim 4, characterized in that: Also includes: An elastic component (110) is sleeved on the output shaft (107) to elastically push the first gear (109) and is used to provide a pre-tightening force for the second gear disc (1082) toward the first gear disc (1081).

6. The cover opening and closing actuator (800) according to claim 4 or 5, characterized in that: Also includes: a second gear (106) meshing with the first gear (109), the second gear (106) being capable of axially relative displacement with the first gear (109), the second gear (106) being used to connect with the driving member (200); and An intermediate shaft (104), wherein the intermediate shaft (104) is coaxially fixedly connected to the second gear (106).

7. The cover opening and closing actuator (800) according to any one of claims 1 to 6, characterized in that: Also includes: An elastic component (110) is sleeved on the output shaft (107) to elastically push the second toothed disc (1082) so as to provide a pre-tightening force for the second toothed disc (1082) toward the first toothed disc (1081).

8. The cover opening and closing actuator (800) according to claim 7, characterized in that: Also includes: A first worm gear pair (118) connected to the driving member (200) and configured to receive a torque from the driving member (200); and The second worm gear pair (119) is connected to the first worm gear pair (118) and the intermediate shaft (104) respectively.

9. The cover opening and closing actuator (800) according to claim 8, characterized in that: The first worm gear pair (118) comprises: A first worm (101) is coaxially fixedly connected to an output shaft of the driving member (200); The first worm wheel (102) is meshed with the first worm (101), and the first worm wheel (102) is also connected to the second worm wheel pair (119).

10. The cover opening and closing actuator (800) according to claim 9, characterized in that: The second worm gear pair (119) comprises: A second worm (103) is coaxially fixedly connected to the first worm wheel (102); and The second worm wheel (105) is meshed with the second worm (103), and the second worm wheel (105) is also coaxially fixedly connected to the intermediate shaft (104).

11. The cover opening and closing actuator (800) according to any one of claims 1 to 10, characterized in that: The first end (1078) of the output shaft (107) is provided with a slot (1074), an open retaining ring is provided in the slot (1074), and the open retaining ring retains the first toothed disc (1081) on the first connecting section (1075); The second end (1079) of the output shaft (107) is provided with a spline (1073), and the spline (1073) is used to connect to the rotating shaft of the cover plate (500).

12. The cover opening and closing actuator (800) according to claim 11, characterized in that: Also includes: A housing (400) is provided inside which the output shaft (107), the clutch mechanism (108) and the driving member (200) are arranged. The housing (400) is used to install and fix the output shaft (107), the clutch mechanism (108) and the driving member (200) near the cover plate (500).

13. The cover opening and closing actuator (800) according to claim 12, characterized in that: A positioning sleeve (4021) and a positioning pin (4022) are provided at the bottom of the housing (400). The positioning sleeve (4021) and the positioning pin (4022) are used for positioning during installation so that the output shaft (107) is coaxial with the rotating shaft of the cover plate (500), and the spline (1073) is located inside the positioning sleeve (4021).

14. A vehicle, comprising a cover plate (500), and also comprising a fuel tank and / or a battery pack, wherein the cover plate (500) is a fuel tank cover plate and / or a charging port cover plate, characterized in that: It also comprises a cover opening and closing actuator (800) according to any one of claims 1 to 13, wherein the cover opening and closing actuator (800) drives a rotating shaft connected to the cover (500).

15. The vehicle according to claim 14, characterized in that Also includes: A position sensor (600) is arranged near the rotation axis of the cover plate (500) and is used to detect the coupling state and decoupling state of the clutch mechanism (108) of the cover plate opening and closing actuator (800).

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