Cover actuator and vehicle

Abstract

The utility model relates to a covering cap actuator and a vehicle, the covering cap actuator comprises a clutch mechanism, the clutch mechanism comprises a first switching disc and a second switching disc, the first switching disc is provided with a tooth part, the second switching disc is provided with a tooth groove, the tooth part is provided with a first spiral surface and a second spiral surface, the tooth part is provided with a first spiral surface and a second spiral surface, the spiral lead angle of the first spiral surface is smaller than the spiral lead angle of the second spiral surface, when the driving device drives the covering cap to rotate to open, the first spiral surface pushes the tooth groove, and when the driving device drives the covering cap to rotate reversely to close, the second spiral surface pushes the tooth groove. When the covering cap is manually closed, the tooth groove pushes the spiral face with the small helix angle, so that torsion needed by manual closing operation is reduced, due to the design of the small helix angle, the torsion needed by manual closing is gentle, resistance sudden change possibly occurring in the operation process is avoided, and therefore the operation difficulty of manual closing of the covering cap is reduced, and the working efficiency is improved. The operation smoothness is improved, and the experience feeling is enhanced.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle parts, and particularly relates to a hatch actuator and a vehicle. Background Art

[0002] For the electric small door actuator on the vehicle fuel tank cover or charging box cover, the driving mechanism in the actuator can drive the opening and closing of the fuel tank cover or charging box cover through the output device; manually pressing the fuel tank cover or charging box cover with a certain torque can manually achieve the opening and closing of the fuel tank cover or charging box cover. Thus, it has the functions of electric opening and electric closing, as well as manual opening and manual closing.

[0003] In daily use, as a safety measure, manual closing is performed by users after each refueling or charging to ensure that the box cover can be properly closed to prevent leakage or other potential risks. In contrast, because the electric opening function provides convenience, users only need to press the corresponding button or switch in the vehicle to open the box cover. Only when there is a fault in the electric system or a power problem, users will use the manual opening function. Therefore, the frequency of manually closing the vehicle fuel tank cover or charging box cover is usually higher than that of manually opening. Manual closing has become a more frequent operation due to its importance in safety inspections. When the hatch using the above actuator is in the open state, when the user manually toggles the hatch, a relatively large sudden force is required to forcibly close the hatch, and the experience of forced closing is poor. Summary of the Utility Model

[0004] The embodiments of the present application provide a hatch actuator and a vehicle, which solve the technical problems in the related art that the operation of manually closing the hatch is difficult, the operation is not smooth, and the experience is poor.

[0005] To achieve the above object, according to the first aspect of the present application, a hatch actuator is provided, including:

[0006] A driving device;

[0007] An output shaft for drivingly connecting with the hatch; and,

[0008] A clutch mechanism including a first adapter plate and a second adapter plate. The first adapter plate is drivingly connected with the driving device, the first adapter plate is sleeved on the output shaft, the second adapter plate is coaxially and fixedly connected with the output shaft. Along the axial direction of the output shaft, a tooth part is provided on one side of the first adapter plate facing the second adapter plate, and a tooth groove matching the tooth part is provided on one side of the second adapter plate facing the first adapter plate;

[0009] Wherein, the tooth part has a first helical surface and a second helical surface that are oppositely arranged in the circumferential direction of the first adapter plate. The helix angle of the first helical surface is smaller than that of the second helical surface. When the driving device drives the hatch cover to rotate and open, the first helical surface pushes against the tooth groove. When the driving device drives the hatch cover to rotate in the reverse direction and close, the second helical surface pushes against the tooth groove.

[0010] Optionally, the tooth part further has a transition plane, which is connected between the first helical surface and the second helical surface, and the transition plane extends along the circumferential direction of the first adapter plate.

[0011] Optionally, the hatch cover actuator further includes:

[0012] a detection device for detecting the rotation angle of the output shaft; and,

[0013] a control device electrically connected to the driving device and the detection device respectively.

[0014] Optionally, the detection device includes a potentiometer, and the potentiometer is installed at one end of the output shaft.

[0015] Optionally, the hatch cover actuator further includes a first elastic member, and the first elastic member is sleeved on the rotating shaft of the hatch cover. When the driving device drives the hatch cover to open, the first elastic member provides a rotational assistance for the rotating shaft of the hatch cover.

[0016] Optionally, the hatch cover actuator further includes a second elastic member. The output shaft is provided with a limiting portion protruding radially. The second elastic member is sleeved on the output shaft, and the second elastic member is arranged between the first adapter plate and the limiting portion.

[0017] Optionally, the driving device includes a driving motor and a transmission mechanism. The driving motor drives the first adapter plate through the transmission mechanism. The transmission mechanism includes:

[0018] a first worm, which is fixedly connected coaxially with the output shaft of the driving device; and,

[0019] a first worm gear, which meshes with the first worm, and the first worm gear is drivingly connected to the first adapter plate.

[0020] Optionally, the transmission mechanism further includes:

[0021] a second worm, which is fixedly connected coaxially with the first worm gear; and,

[0022] a second worm gear, which meshes with the second worm, and the second worm gear is drivingly connected to the first adapter plate.

[0023] Optionally, the transmission mechanism further includes:

[0024] A first gear coaxially and fixedly connected to the second worm gear; and,

[0025] A second gear coaxially and fixedly connected to the first adapter plate, the second gear meshing with the first gear and being axially movable relative to the first gear.

[0026] Optionally, the hatch actuator further includes:

[0027] A housing, within which the output shaft, the clutch mechanism and the driving device are all arranged, and at least two spaced positioning portions are provided on the housing to correspondingly cooperate with at least two positioning and mating portions of the hatch, so that the output shaft and the rotating shaft of the hatch are coaxially positioned.

[0028] According to a second aspect of the present application, there is provided a vehicle, including:

[0029] A vehicle body having a fuel tank opening and / or a charging opening;

[0030] A hatch rotatably arranged to open or close the fuel tank opening and / or the charging opening; and,

[0031] The hatch actuator as described above, the hatch actuator being drivingly connected to the hatch.

[0032] In the hatch actuator of the embodiment of the present application, the first adapter plate is drivingly connected to the driving device, the second adapter plate is coaxially and fixedly connected to the output shaft, the first adapter plate is provided with a tooth portion, and the second adapter plate is provided with a tooth groove. In the electric mode, the torque is transmitted from the driving device to the second adapter plate through the first adapter plate, that is, from the tooth portion to the tooth groove. When opening electrically, the first helical surface with a smaller helix angle pushes against the tooth groove; when closing electrically, the second helical surface with a larger helix angle pushes against the tooth groove. In the manual mode, the transmission direction of the torque is opposite, that is, from the tooth groove to the tooth portion. When opening manually, the tooth groove pushes against the second helical surface, and when closing manually, the tooth groove pushes against the first helical surface. Since the helix angle of the first helical surface is smaller, the decoupling force (i.e., the force required to separate the first helical surface from the tooth groove) is also relatively small, and the torque required for the manual closing operation is reduced. The design of the small helix angle makes the torque required for manual closing relatively gentle, avoiding sudden changes in resistance that may occur during the operation process, thereby reducing the operation difficulty of manually closing the hatch, improving the smoothness of the operation, and enhancing the experience.

[0033] Other features and advantages of the present application will be described in detail in the subsequent specific implementation section. Description of the Drawings

[0034] To more clearly illustrate the technical solutions in the embodiments of the present application, the accompanying drawings required for the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0035] To more fully understand the present application and its beneficial effects, the following description will be made in conjunction with the accompanying drawings, where the same reference numerals in the following description represent the same parts.

[0036] Figure 1 is a schematic diagram of the overall structure of the hatch actuator provided in an exemplary embodiment of the present disclosure (hiding the housing);

[0037] Figure 2 is Figure 1 a partial schematic diagram of the hatch actuator in (the clutch mechanism is in a decoupled state);

[0038] Figure 3 is Figure 1 a partial schematic diagram of the hatch actuator in (the clutch mechanism is in a coupled state);

[0039] Figure 4 is Figure 1 a partial schematic diagram of the hatch actuator in (the clutch mechanism is in a coupled state);

[0040] Figure 5 is Figure 4 a disassembled schematic diagram of the structure in ;

[0041] Figure 6 is a schematic diagram of the overall structure of the hatch actuator provided in an exemplary embodiment of the present disclosure;

[0042] Figure 7 is Figure 6 a three-dimensional schematic diagram of the hatch actuator in ;

[0043] Figure 8 is a schematic diagram of the overall structure of the hatch provided in an exemplary embodiment of the present disclosure.

[0044] Description of reference numerals:

[0045] 100. Flap actuator; 1. Driving device; 11. Driving motor; 12. Transmission mechanism; 121. First worm; 122. First worm gear; 123. Second worm; 124. Second worm gear; 125. First gear; 126. Second gear; 2. Output shaft; 21. Limiting part; 3. Clutch mechanism; 31. First adapter plate; 311. Tooth part; 3111. First helical surface; 3112. Second helical surface; 3113. Transition plane; 32. Second adapter plate; 321. Tooth groove; 4. Detection device; 41. Potentiometer; 5. First elastic member; 6. Second elastic member; 7. Intermediate shaft; 8. Housing; 81. Positioning part; 811. Positioning sleeve; 812. Positioning pin; 9. Position switch; 200. Flap; 210. Rotating shaft. Detailed implementation mode

[0046] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present application.

[0047] The present application provides a flap actuator. Figures 1 to 7 It is a schematic structural diagram of the flap actuator provided in the embodiment of the present application.

[0048] Please refer to Figures 1 to 3 , the flap actuator 100 includes a driving device 1. The driving device 1 is the power source of the actuator and is usually composed of a driving motor 11, which is used to generate a rotational torque to drive the opening and closing of the flap 200 and realize the electric opening and closing of the flap 200.

[0049] The flap actuator 100 further includes an output shaft 2. The output shaft 2 is drivingly connected to the flap 200 and can transmit torque.

[0050] The flap actuator 100 further includes a clutch mechanism 3. The clutch mechanism 3 includes a first adapter plate 31 and a second adapter plate 32. The first adapter plate 31 is drivingly connected to the driving device 1. The first adapter plate 31 is sleeved on the output shaft 2. The second adapter plate 32 is coaxially and fixedly connected to the output shaft 2. Along the axial direction of the output shaft 2, a tooth part 311 is provided on one side of the first adapter plate 31 facing the second adapter plate 32, and a tooth groove 321 matching the tooth part 311 is provided on one side of the second adapter plate 32 facing the first adapter plate 31. It can be understood that the first adapter plate 31 is sleeved on the output shaft 2 and can move axially along the output shaft 2 so that the first adapter plate 31 and the second adapter plate 32 have a coupled state close to each other (the tooth part 311 cooperates with the tooth groove 321, see Figure 3 ) and a decoupled state away from each other (the tooth part 311 disengages from the tooth groove 321 and separates, seeFigure 2 ) to achieve the clutch function of the clutch mechanism 3.

[0051] For details, refer to Figure 2 and Figure 3 , the tooth part 311 has a first helical surface 3111 and a second helical surface 3112 that are oppositely arranged in the circumferential direction of the first adapter plate 31. The helix angle of the first helical surface 3111 is smaller than that of the second helical surface 3112. When the driving device 1 drives the cover 200 to rotate and open, the first helical surface 3111 pushes against the tooth groove 321 (the pushing direction is shown by the arrow a in Figure 3 ). When the driving device 1 drives the cover 200 to rotate in the reverse direction and close, the second helical surface 3112 pushes against the tooth groove 321 (the pushing direction is shown by the arrow b in Figure 3 ). It should be noted that the tooth groove 321 matches the tooth part 311, which means that the shape, size, and angle of the tooth groove 321 are coordinated with the tooth part 311. Such a design ensures that during mechanical transmission, the tooth part 311 and the tooth groove 321 can accurately mesh, effectively transmit torque, while reducing energy loss and wear. Since the tooth part 311 is provided with two oppositely arranged helical surfaces with different helix angles, the inner wall of the tooth groove 321 also correspondingly has two oppositely arranged helical surfaces with different helix angles.

[0052] It can be understood that in the electric mode, the torque is transmitted from the driving device 1 through the first adapter plate 31 to the second adapter plate 32, that is, from the tooth part 311 to the tooth groove 321. In the manual mode, the transmission direction of the torque is opposite, that is, from the tooth groove 321 to the tooth part 311. Because when opening electrically, the first helical surface 3111 with a smaller helix angle pushes against the tooth groove 321; when closing electrically, the second helical surface 3112 with a larger helix angle pushes against the tooth groove 321. Therefore, when opening manually, the tooth groove 321 pushes against the second helical surface 3112 (the pushing direction is shown by the arrow c in Figure 3 ), and when closing manually, the tooth groove 321 pushes against the first helical surface 3111 (the pushing direction is shown by the arrow d in Figure 3 ). Since the helix angle of the first helical surface 3111 is smaller, the decoupling force (that is, the force required to separate the first helical surface 3111 from the tooth groove 321) is also relatively small, and the torque required for the manual closing operation is reduced. The design of the small helix angle also makes the torque required for manual closing relatively gentle.

[0053] In the technical solution of the present application, by providing two helical surfaces with different helix angles and arranged oppositely on the tooth portion 311, and the tooth groove 321 is matched with the tooth portion 311. When manually closing, the tooth groove 321 pushes against the helical surface with a smaller helix angle (i.e., the first helical surface 3111), so that the torque required for manual closing is reduced. The design of the small helix angle makes the torque required for manual closing relatively gentle, avoiding sudden changes in resistance that may occur during the operation, thereby reducing the operation difficulty of manually closing the hatch 200, improving the smoothness of the operation, and enhancing the experience.

[0054] It should be added that the first helical surface 3111 and the second helical surface 3112 arranged oppositely in the circumferential direction of the first adapter plate 31 on the tooth portion 311 means that the outer contour of the cross-section of the tooth portion 311 in the circumferential direction of the first adapter plate 31 includes the first helical line and the second helical line arranged oppositely. The helix angle of the first helical surface 3111 being smaller than the helix angle of the second helical surface 3112 means that the helix angle of the first helical line corresponding to the first helical surface 3111 is smaller than the helix angle of the second helical line corresponding to the second helical surface 3112. The helix angle is an important geometric parameter, often used to describe the inclination degree of the helical structure. The helix angle refers to the angle between the helical line and the vertical axis. It can be understood that the angles of the helix angles of the first helical surface 3111 and the second helical surface 3112 directly affect the torque required for manual closing or opening. At the same time, the angles of the helix angles of the first helical surface 3111 and the second helical surface 3112 need to ensure that the first adapter plate 31 and the second adapter plate 32 will not decouple during electric opening or closing. The present application does not limit the specific angles of the helix angles of the first helical surface 3111 and the second helical surface 3112, and can be adjusted according to needs.

[0055] The present application does not specifically limit the number of teeth 311 and tooth grooves 321. In some embodiments, there are multiple teeth 311, and the multiple teeth 311 are evenly distributed along the circumferential direction of the first adapter plate 31; there are multiple tooth grooves 321, and the multiple tooth grooves 321 are evenly distributed along the circumferential direction of the second adapter plate 32. The even distribution of the number of teeth 311 and tooth grooves 321 ensures the smooth meshing between the first adapter plate 31 and the second adapter plate 32, reduces vibration and noise during operation, and improves the stability and efficiency of the system. For example, there are four teeth 311 and four tooth grooves 321 to form four sets of concave-convex mating structures between the first adapter plate 31 and the second adapter plate 32. Through precise calculation and design, within the entire stroke range of the charging port cover 200, only one meshing of the teeth 311 and the tooth grooves 321 is required to complete the forced opening process from closed to open. This design reduces unnecessary multiple meshing, reduces mechanical wear, improves the efficiency and lifespan of operation, and can also ensure that the cover 200 can stably stop near the preset open point after being opened. When the charging port cover 200 needs to be closed, it ensures that the cover 200 can smoothly and accurately return to the closed position, ensuring the safe and convenient use of the cover 200.

[0056] In some embodiments, the tooth 311 further has a transition plane 3113. The transition plane 3113 is connected between the first helical surface 3111 and the second helical surface 3112, and the transition plane 3113 extends along the circumferential direction of the first adapter plate 31. In these embodiments, the presence of the transition plane 3113 ensures a smooth transition from the first helical surface 3111 to the second helical surface 3112, avoiding sudden geometric changes. This helps reduce impact and stress concentration during torque transmission, thereby improving the stability and lifespan of the transmission system. Through the extension of the transition plane 3113, the torque can be more evenly distributed when the tooth 311 contacts the tooth groove 321, avoiding local overload and ensuring smooth torque transmission during the transmission process, reducing wear and noise.

[0057] In some embodiments, the hatch actuator 100 further includes a detection device 4 and a control device. The detection device 4 is used to detect the rotation angle of the output shaft 2. The control device is electrically connected to the driving device 1 and the detection device 4 respectively. In these embodiments, the detection device 4 can detect the change in the rotation angle of the output shaft 2 and transmit the angle change information of the output shaft 2 to the control device. After obtaining the rotation angle information of the output shaft 2, the control device can control the operation of the driving device 1 according to a preset logic. When the hatch 200 is in the open position and the user manually rotates the hatch 200 to a certain angle and is about to close the hatch 200, the detection device 4 will capture this action and trigger the response of the control device, and finally realize the automatic closing of the hatch 200 through electric drive, that is, the so-called "follow-up function". Through the follow-up function, the hatch actuator 100 can automatically complete the remaining closing action according to the user's manual operation, reducing the user's operation burden. In addition, the follow-up function can monitor the opening and closing state of the hatch 200 in real time. During the manual operation, once it detects that it exceeds a preset safety threshold, the control device can automatically intervene to limit further operation, thereby avoiding damage or deformation of the hatch 200 or other structures caused by an excessive rotation angle.

[0058] This application does not specifically limit the type of the detection device 4. For example, the detection device 4 can be a rotary encoder, a gyroscope, a piezoelectric sensor, a piezoresistive sensor, a magnetic angle sensor, etc. This application also does not specifically limit the installation position of the detection device 4, and it can be installed according to the characteristics of the required detection device 4.

[0059] In some embodiments, the detection device 4 includes a potentiometer 41. The potentiometer 41 is installed at one end of the output shaft 2. In these embodiments, when the output shaft 2 rotates, the position of the sliding contact of the potentiometer 41 changes, thereby measuring the rotation angle of the output shaft 2. Since the potentiometer usually has the characteristics of a small structure and a relatively low price, directly installing it at one end of the output shaft 2 is beneficial to cost savings and space saving.

[0060] Refer to Figure 8 , in order to improve the control accuracy and safety of the hatch actuator 100, a position sensor can also be provided near the hatch 200 to detect the specific position and state of the hatch 200. For example, a position switch 9. The position switch 9 can detect preset and very precise positions, such as the fully open and fully closed points of the hatch 200, and can provide a more precise trigger signal than the potentiometer 41, ensuring that the control device performs corresponding actions at the correct time point, and can realize the function of the hatch 200 reversing and hovering back when encountering an obstacle during opening / closing.

[0061] It can be understood that when the access cover 200 is electrically closed, the second helical surface 3112 with a larger helix angle pushes against the tooth groove 321 to transmit torque. The torque of the actuator can be transmitted between the tooth part 311 and the tooth groove 321 without separation, enabling the access cover 200 to complete closing, jamming, and tightly adhering to the vehicle body, thereby reducing the surface difference. Specifically, when the access cover 200 is approaching the fully closed state and starts to fit against the vehicle body, it will encounter a relatively large resistance. At this time, the second helical surface 3112 with a larger helix angle can effectively transmit the torque output by the actuator to the access cover 200, enabling it to overcome the resistance, complete the closing action, and tightly fit against the vehicle body, thus reducing the surface difference between the access cover 200 and the vehicle body and enhancing the sealing performance and aesthetics of the vehicle.

[0062] It can also be understood that when the access cover 200 is in the closed position, the second helical surface 3112 with a larger helix angle is coupled with the tooth groove 321, and the clutch mechanism is not easily separated, maintaining a relatively large holding force. This helps to ensure that the clutch mechanism is not easily separated under normal driving conditions. Even when the vehicle encounters vibrations or bumps during driving, the stable connection between the access cover 200 and the vehicle body can be maintained, preventing the access cover 200 from accidentally opening and thus ensuring the driving safety of the vehicle. Similarly, when attempting to manually forcefully open the closed access cover 200, the larger helix angle design makes the coupling between the second helical surface 3112 and the tooth groove 321 more secure. To overcome this coupling effect and open the access cover 200, a relatively large forced opening force needs to be applied. This design improves the safety of the vehicle, realizes anti-play, and prevents children or other personnel from randomly operating the access cover 200 out of curiosity, thus avoiding potential safety hazards.

[0063] It can also be understood that when the access cover 200 is electrically opened, the first helical surface 3111 with a smaller helix angle pushes against the tooth groove 321, transmitting a relatively small torque. To avoid accidental decoupling of the clutch mechanism 3 during this process, refer to Figure 8 , in some embodiments, the access cover actuator 100 further includes a first elastic member 5. The first elastic member 5 is sleeved on the rotating shaft 210 of the access cover 200. When the driving device 1 drives the access cover 200 to open, the first elastic member 5 provides rotational assistance for the rotating shaft 210 of the access cover 200. In these embodiments, the function of the first elastic member 5 is that when the driving device 1 starts to drive the access cover 200 to open, the force generated by its pre-tightening or elastic deformation provides an additional rotational torque for the rotating shaft 210. This torque can compensate for the torque reduction caused by the smaller helix angle, ensuring that the clutch mechanism 3 remains coupled during the opening process and avoiding decoupling due to insufficient torque, thereby ensuring that the access cover 200 can be opened smoothly and reliably. Specifically, the first elastic member 5 is a one-way torsion spring sleeved on the rotating shaft 210 of the access cover 200, and this one-way torsion spring assists in driving the access cover 200 to open.

[0064] It can be understood that if the torsion force provided by the first elastic member 5 is too large and the opening speed of the access cover 200 exceeds the electric driving speed, the first helical surface 3111 with a small helix angle is decoupled from the tooth groove 321 and automatically transitions to the coupling of the second helical surface 3112 and the tooth groove 321. Since the helix angle of the second helical surface 3112 is larger, it can provide greater resistance, thereby effectively controlling the opening speed of the access cover 200 to be consistent with the electric driving speed, enabling the control of the opening speed, improving the stability of the system and the safety of operation.

[0065] In some embodiments, please refer to the appendix Figures 2 to 4 , the access cover actuator 100 further includes a second elastic member 6. The output shaft 2 is radially protruded with a limiting portion 21. The second elastic member 6 is sleeved on the output shaft 2 and is disposed between the first adapter plate 31 and the limiting portion 21. In these embodiments, the introduction of the second elastic member 6 is to provide a radial restoring force between the first adapter plate 31 and the second adapter plate 32, thereby ensuring a smooth transition to the coupling state after the decoupling state. Specifically, the second elastic member 6 is sleeved between the limiting portion 21 of the output shaft 2 and the first adapter plate 31. The limiting portion 21 protrudes radially along the output shaft 2, which enables the second elastic member 6 to be compressed and store energy. When the first adapter plate 31 and the first turntable are decoupled due to some reason (such as excessive torque or speed mismatch), the second elastic member 6 will be in a compressed state. Once the reason for decoupling is eliminated, the second elastic member 6 will release the stored energy and push the first adapter plate 31 to move towards the second adapter plate 32, thereby realizing the re-coupling of the two, ensuring that after the decoupling state, the access cover actuator 100 can quickly and automatically return to the coupling state without external intervention, improving the response speed and automation degree of the system. At the same time, the radial restoring force of the second elastic member 6 can also play a buffering role, reducing the impact and vibration that may occur during the coupling process, and improving the stability and service life of the system. Specifically, the second elastic member 6 is a spring. Please refer to Figure 5 , the second elastic member 6 is a spring. One end of the spring abuts against the limiting portion 21, and the other end of the spring abuts against the second gear 126. The second gear 126 is coaxially and fixedly arranged with the first adapter plate 31 to realize the installation of the spring between the first adapter plate 31 and the limiting portion 21.

[0066] The present application does not limit the specific composition of the driving device 1. For example, the driving device 1 includes a pneumatic or hydraulic driving device 1.

[0067] In some embodiments, the driving device 1 includes a driving motor 11 and a transmission mechanism 12. The driving motor 11 drives the first adapter plate 31 through the transmission mechanism 12. The transmission mechanism 12 includes a first worm 121 and a first worm gear 122. The first worm 121 is fixedly connected coaxially with the output shaft 2 of the driving device 1. The first worm gear 122 meshes with the first worm 121, and the first worm gear 122 is drivingly connected to the first adapter plate 31. In these embodiments, the driving motor 11 provides the original power, which can be a DC motor, a stepper motor, a servo motor, etc. The transmission design of the first worm 121 and the first worm gear 122 can provide high-efficiency speed reduction and torque increase to meet the specific requirements of the door cover actuator 100 for torque and speed. At the same time, due to the self-locking characteristic of the worm-worm gear transmission, the setting of the first worm 121 and the first worm gear 122 allows the torque to be output from the driving motor 11 to the output shaft 2 for driving. When the driving torque is transmitted from the door cover 200 through the output shaft 2 in the direction of the driving motor 11, the first worm 121 and the first worm gear 122 are self-locked. When self-locked, the torque forces the clutch mechanism 3 to be power-decoupled, thereby providing an appropriate opening resistance for the door cover 200, effectively preventing the door cover 200 from being accidentally opened, and ensuring the stability of the door cover 200 in the non-electric driving state, making the structure safer and more reliable.

[0068] It can be understood that the geometric parameters of the first worm 121 and the first worm gear 122, such as the number of starts, the module, the helix angle of the first worm 121, and the number of teeth and tooth profile of the first worm gear 122, will affect the reduction ratio and the magnitude of the torque. By adjusting these parameters, the required transmission performance can be obtained to meet the specific requirements of the door cover actuator 100 for torque and speed.

[0069] In some embodiments, the transmission mechanism 12 further includes a second worm 123 and a second worm gear 124. The second worm 123 is fixedly connected coaxially with the first worm gear 122. The second worm gear 124 meshes with the second worm 123, and the second worm gear 124 is drivingly connected to the first adapter plate 31. In these embodiments, by adding the second worm 123 and the second worm gear 124, a two-stage reduction system is formed, which can further reduce the output speed and increase the output torque. Due to the self-locking characteristic of the worm-worm gear transmission, even after the second-stage reduction, the system can still maintain good stability, preventing the door cover 200 from moving due to gravity or other external forces in the non-driving state.

[0070] It can be understood that, for strong reference Figure 6, the two-stage worm-gear transmission mechanism 12 can form an L-shaped layout, that is, the axes of the first worm 121 and the second worm 123 are perpendicular to each other, forming an L shape. This layout can effectively reduce the overall length of the transmission mechanism 12, making the structure more compact. In platform applications, this layout can ensure that connectors or other mechanical components do not additionally occupy the X-direction space of the whole vehicle, that is, the horizontal space. Such a design not only improves the space utilization efficiency but also helps to simplify the integration process of the mechanical system, making the entire platform more modular and flexible.

[0071] In some embodiments, the transmission mechanism 12 further includes a first gear 125 and a second gear 126. The first gear 125 is coaxially and fixedly connected to the second worm gear 124; the second gear 126 is coaxially and fixedly connected to the first adapter plate 31. The second gear 126 meshes with the first gear 125 and can axially move relative to the first gear 125. In these embodiments, the first gear 125 is coaxially and fixedly connected to the second worm gear 124, that is, the first gear 125 and the second worm gear 124 share the same intermediate shaft 7. When the second worm gear 124 rotates, the first gear 125 will also rotate accordingly. The second gear 126 meshes with the first gear 125 and can transmit power. The second gear 126 is axially movable relative to the first gear 125. When the first adapter plate 31 and the second adapter plate 32 are decoupled, the second gear 126 can axially move with the first adapter plate 31. In this way, the first gear 125 and the second gear 126 can maintain effective power transmission while ensuring a certain degree of axial freedom.

[0072] In some embodiments, the hatch actuator 100 further includes a housing 8. The output shaft 2, the clutch mechanism 3, and the driving device 1 are all arranged inside the housing 8. The housing 8 is provided with at least two spaced positioning portions 81 at least to cooperate with at least two positioning and mating portions of the hatch 200, so that the output shaft 2 and the rotating shaft 210 of the hatch 200 are coaxially positioned. In these embodiments, the output shaft 2, the clutch mechanism 3, and the driving device 1 are integrated inside the housing 8, providing a compact and fully functional actuator unit. The housing 8 protects the internal components from the external environment, such as dust, moisture, or physical damage, extending the service life of the actuator. The at least two spaced positioning portions 81 cooperate with at least two positioning and mating portions on the hatch 200. Through the precise cooperation of the two positioning portions 81 and the two positioning and mating portions, the output shaft 2 and the rotating shaft 210 of the hatch 200 can be coaxially positioned, ensuring efficient power transmission and avoiding additional friction or power loss caused by misalignment, realizing smooth and accurate opening and closing of the hatch 200.

[0073] In a specific embodiment, please refer to Figure 7, one positioning part 81 is a positioning sleeve 811. A spline is provided inside the positioning sleeve 811. One positioning and mating part is a hole with a corresponding spline, another positioning and mating part is a positioning pin 812, and another positioning and mating part is a positioning hole. Of course, in other specific embodiments, the positioning part 81 and the positioning and mating part can also be other matching structures, for example, a wedge block and a matching mating surface.

[0074] According to the second aspect of the present application, a vehicle is provided, including a vehicle body, a hatch 200, and a hatch actuator 100.

[0075] The vehicle body has a fuel tank opening and / or a charging opening. The hatch 200 is rotatably arranged to open or close the fuel tank opening and / or the charging opening. The hatch actuator 100 is drivingly connected to the hatch 200. The structure of the hatch actuator 100 is as described above. Since this vehicle adopts all the technical solutions of the above-mentioned all embodiments, it at least has the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be elaborated here one by one.

[0076] This vehicle can be a fuel vehicle, a plug-in hybrid vehicle, a new energy vehicle, etc., and the present disclosure does not make specific limitations thereto.

[0077] In the description of the present application, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, the meaning of "a plurality" is two or more, unless otherwise clearly and specifically defined.

[0078] In the above embodiments, the descriptions of each embodiment have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0079] Among the embodiments, embodiments, and related technical features of the present application, they can be combined and replaced with each other without conflict.

[0080] The above are only the preferred embodiments of the present application and do not impose any form of limitation on the present application. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application still fall within the scope of the technical solution of the present application.

Claims

1. An access panel actuator, characterized in that, Comprising: A driving device; An output shaft for driving connection with the access cover; And, A clutch mechanism including a first adapter plate and a second adapter plate. The first adapter plate is drivingly connected to the driving device, the first adapter plate is sleeved on the output shaft, the second adapter plate is coaxially and fixedly connected to the output shaft. Along the axial direction of the output shaft, a tooth portion is provided on one side of the first adapter plate facing the second adapter plate, and a tooth groove matching the tooth portion is provided on one side of the second adapter plate facing the first adapter plate; Wherein, the tooth portion has a first helical surface and a second helical surface oppositely arranged in the circumferential direction of the first adapter plate. The helix angle of the first helical surface is smaller than the helix angle of the second helical surface. When the driving device drives the access cover to rotate and open, the first helical surface pushes against the tooth groove. When the driving device drives the access cover to rotate reversely and close, the second helical surface pushes against the tooth groove.

2. The flap actuator according to claim 1, wherein The tooth portion further has a transition plane which is connected between the first helical surface and the second helical surface and extends along the circumferential direction of the first adapter plate.

3. The flap actuator according to claim 1, characterized in that, The access cover actuator further comprises: A detection device for detecting the rotation angle of the output shaft; and, A control device electrically connected to the driving device and the detection device respectively.

4. The access cover actuator according to claim 3, wherein, The detection device includes a potentiometer which is installed at one end of the output shaft.

5. The flap actuator according to claim 1, characterized in that, The access cover actuator further includes a first elastic member sleeved on the rotating shaft of the access cover. When the driving device drives the access cover to open, the first elastic member provides rotational assistance for the rotating shaft of the access cover.

6. The flap actuator according to claim 1, characterized in that, The access cover actuator further includes a second elastic member. The output shaft is provided with a limiting portion protruding radially. The second elastic member is sleeved on the output shaft and is arranged between the first adapter plate and the limiting portion.

7. The flap actuator according to claim 1, characterized in that, The driving device includes a driving motor and a transmission mechanism. The driving motor drives the first adapter plate through the transmission mechanism. The transmission mechanism includes: A first worm coaxially and fixedly connected to the output shaft of the driving device; and, A first worm gear meshing with the first worm. The first worm gear is drivingly connected to the first adapter plate.

8. The access cover actuator according to claim 7, characterized in that, The transmission mechanism further includes: A second worm coaxially and fixedly connected to the first worm gear; and, A second worm gear meshing with the second worm. The second worm gear is drivingly connected to the first adapter plate.

9. The access cover actuator according to claim 8, characterized in that, The transmission mechanism further includes: A first gear coaxially and fixedly connected to the second worm gear; and, A second gear coaxially and fixedly connected to the first adapter plate. The second gear meshes with the first gear and can axially move relative to the first gear.

10. The access panel actuator according to claim 1, characterized in that, The access cover actuator further comprises: A housing. The output shaft, the clutch mechanism and the driving device are all arranged in the housing. At least two spaced positioning portions are provided on the housing to correspondingly cooperate with at least two positioning and mating portions of the access cover, so that the output shaft and the rotating shaft of the access cover are coaxially positioned.

11. A vehicle, characterized in that, Comprising: A vehicle body having a fuel tank opening and / or a charging opening; A cover, rotatably arranged to open or close the fuel tank opening and / or the charging opening; And, The cover actuator according to any one of claims 1 to 10, the cover actuator being drivingly connected to the cover.

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