Turnover actuator

Abstract

The utility model discloses a turnover actuator which comprises an actuator shell, an output gear is rotatably connected in the actuator shell, an output shaft of the output gear is coaxially connected with a driving gear capable of synchronously rotating along with the output gear, and the driving gear is used for driving an oil filling tank cover or a charging tank cover to be opened and closed. The control circuit board is arranged in the actuator shell and is electrically connected with the trip computer; the detection element comprises a Hall element connected to the control circuit board and a magnet installed on the output gear and matched with the Hall element, and the detection element is used for detecting the rotation position of the output gear; and the driving motor is connected into the actuator shell and electrically connected with the control circuit board, and the driving motor is in transmission connection with the output gear and used for driving the output gear to rotate. The turnover actuator is simple in structure and low in production cost and meets the requirement for product miniaturization.

Description

Technical Field

[0001] The present application relates to the technical field of automobile parts, and in particular to a flip actuator used on a fuel tank cap or a charging port cap of an automobile. Background Art

[0002] When refueling or charging a car, the fuel filler cap or charging port cover needs to be opened or closed. Most cars use traditional mechanical methods to open or close the fuel filler cap or charging port cover, that is, a lock rod is fixed on a small door, a lock sleeve is fixed on a vehicle body seat, and opening and closing are achieved by pressing or pulling a cable. This opening structure is easily affected by external factors and may lead to misoperation.

[0003] With the development of automobile technology, people configure electric flip actuators on automobile fuel tank caps or charging port caps to avoid misoperation. The electric flip actuators of the related technology use electric drive to flip the fuel tank cap or charging port cap to open or close. For example, the patent application with publication number CN112943003A and the name of an electric small door actuator assembly on a vehicle fuel tank cap or charging box cap, the structure of the actuator assembly includes an actuator housing, a drive motor, an electronic control device and an output device, the drive motor is installed in the actuator housing; the electronic control device is used to control the operation of the drive motor and is electrically connected to the driving computer; the output device is used to drive the opening and closing of the fuel tank cap or charging box cap; a self-locking transmission mechanism is arranged between the drive motor and the output device, the self-locking transmission mechanism is a gear transmission assembly and has a reverse self-locking function to avoid accidental opening of the fuel tank cap or charging box cap; the output device is a driving gear connected to the fuel tank cap or charging box cap, and a clutch mechanism is installed on the output gear connected to the output device, and the output gear is coaxial or coaxial with the drive gear. The clutch mechanism is used to manually operate the fuel tank cover or charging box cover when the electric part is powered off or fails, so that the clutch mechanism switches from the engaged state to the disengaged state, thereby releasing the reverse self-locking function of the self-locking transmission mechanism and manually opening and closing the fuel tank cover or charging box cover.

[0004] The above-mentioned flip actuator of the related technology has the following defects in actual use: most of the electric flip actuators of the related technology use angle sensors or position sensors to detect the rotation angle or position of the drive gear to determine whether the fuel tank cover or the charging box cover is in an open state or a closed state, but such sensors make the overall structure of the flip actuator complex and the production cost high. In addition, the flip actuator of the related technology is connected to a clutch on the output gear, that is, the clutch is integrated on the output gear, so the overall volume of the output gear is large, which leads to a large volume of the actuator housing, which cannot meet the needs of product miniaturization; moreover, the clutch and the output gear are also cumbersome to assemble. Utility Model Content

[0005] The technical problem to be solved by the present application is to overcome the defects of the above-mentioned related technologies and provide a flip actuator with a simple structure, low production cost and meeting the requirements of product miniaturization.

[0006] The technical solution of the present application is to provide a flip actuator having the following structure:

[0007] An actuator housing, wherein an output gear is rotatably connected to the actuator housing, and a driving gear is coaxially connected to the output shaft of the output gear and can rotate synchronously with the output gear, and the driving gear is used to drive the opening and closing of the fuel tank cover or the charging box cover;

[0008] A control circuit board is installed in the actuator housing and is electrically connected to the on-board computer;

[0009] A detection element, comprising a Hall element connected to the control circuit board and a magnet mounted on the output gear and adapted to the Hall element, the detection element being used to detect the rotation position of the output gear;

[0010] The drive motor is connected in the actuator housing and is electrically connected to the control circuit board. The drive motor is transmission-connected to the output gear and is used to drive the output gear to rotate.

[0011] In some embodiments, the flip actuator also includes a clutch mechanism, which is arranged between the drive motor and the output gear, and the rotation axis of the clutch mechanism is parallel to the rotation axis of the output gear, the drive motor is transmission connected to the clutch mechanism, and the clutch mechanism is transmission connected to the output gear.

[0012] In some embodiments, the clutch mechanism includes a main shaft and a first gear and a second gear rotatably connected to the main shaft, the first gear is drivingly connected to the drive motor, and a conical accommodating portion is provided on the first gear; the second gear is drivingly connected to the output gear, and the second gear has a conical engaging portion that is clearance-fitted in the accommodating portion and matches the shape of the accommodating portion; the clutch mechanism also includes an elastic member connected to the main shaft, and the elastic member makes the accommodating portion of the first gear always have a movement tendency to counteract the engaging portion of the second gear; when the clutch mechanism is in an engaged state, the friction force between the accommodating portion and the engaging portion makes the first gear drive the second gear to rotate synchronously; when the clutch mechanism is in a disengaged state, the engaging portion is rotatable relative to the accommodating portion so that the second gear rotates relative to the first gear.

[0013] In some embodiments, the accommodating portion is a cone with a small inner end and a large outer end, a baffle is connected to the main shaft, the lower end of the elastic member abuts against the baffle, and the upper end of the elastic member abuts against the bottom of the first gear.

[0014] In some embodiments, a double gear is rotatably connected between the clutch mechanism and the output gear, and a first tooth portion of the double gear is meshed with the second gear, and a second tooth portion of the double gear is meshed with the output gear.

[0015] In some embodiments, a worm is connected to the driving shaft of the driving motor, and the first gear is a worm wheel meshing with the worm.

[0016] In some embodiments, the central hole of the output gear is configured as a polygonal hole, and the output shaft of the output gear is provided with a polygonal rod portion that matches and plugs into the polygonal hole.

[0017] In some embodiments, a pin module is electrically connected to the control circuit board, and the pin module includes a plurality of pins and a base block fixedly connected to the pins; a pin seat is provided in the actuator housing for the pins to extend from the inside to the outside, and the inner end of the pin seat is against the base block.

[0018] In summary, compared with the related art, the present invention has the following advantages: the detection element of the flip actuator is set to integrate a Hall element on the control circuit board and install a magnet compatible with the Hall element on the output gear, and the Hall element senses the position of the magnet to monitor the rotation angle of the output gear, so as to judge the rotation angle of the drive gear, so that the driving computer detects whether the car gas tank cover or charging box cover is in an open or closed state. Compared with the angle sensor or position sensor for detecting the rotation angle or position of the drive gear in the prior art, the detection element composed of the Hall element and the magnet is not only simple in structure and easy to assemble, but also does not occupy the space in the actuator housing, which can meet the requirements of the miniaturized design of the flip actuator, and the detection element composed of the Hall element and the magnet has a low cost, thereby reducing the production cost of the flip actuator. Furthermore, the clutch mechanism of the flip actuator is independent of the output gear, so that the overall size of the output gear can be effectively reduced, making the overall volume design of the flip actuator smaller. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of a flip actuator in some embodiments of the present application.

[0020] Figure 2 It is a schematic diagram of the assembly structure of a flip actuator in some embodiments of the present application.

[0021] Figure 3This is a schematic diagram of the assembly structure from another angle of a flip actuator in some embodiments of the present application.

[0022] Figure 4 It is a schematic cross-sectional structure diagram of a flip actuator in some embodiments of the present application.

[0023] Figure 5 It is a schematic cross-sectional structural diagram of a clutch mechanism of a flip actuator in some embodiments of the present application.

[0024] Description of reference numerals:

[0025] 1. Actuator housing, 100. Pin socket, 101. Through hole, 2. Driving gear, 3. Control circuit board, 4. Driving motor, 400. Worm, 401. Double gear, 402. First gear portion, 403. Second gear portion, 5. Output gear, 500. Output shaft, 501. Polygonal hole, 6. Clutch mechanism, 600. Main shaft, 601. First gear, 602. Second gear, 603. Elastic member, 604. Baffle, 605. Accommodating portion, 606. Joint portion, 7. Pin module, 700. Pin, 701. Base block, 8. Magnet. DETAILED DESCRIPTION

[0026] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0027] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0028] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] See also Figure 1 to Figure 5 As shown; the embodiment of the present application discloses a flip actuator, which is connected to a car and is used to drive the opening and closing of the car's gas tank cover or charging box cover. The structure of the flip actuator includes an actuator housing 1 and a control circuit board 3 and a drive motor 4 arranged in the actuator housing 1. An output gear 5 is rotatably connected in the actuator housing 1, and a drive gear 2 that can rotate synchronously with the output gear 5 is coaxially connected to the output shaft 500 of the output gear 5. The drive gear 2 is located on the outside of the actuator housing 1, and the drive gear 2 is used to mesh with the gear on the gas tank cover or the charging box cover and to drive the opening and closing of the gas tank cover or the charging box cover; the control circuit board 3 is an electronic control device of the flip actuator, which is electrically connected to the on-board computer, that is, an interface is provided on the actuator housing 1 of the flip actuator, and the interface is electrically connected to the on-board computer or the central control through a signal line or an electrical connection line; the control circuit board 3 of the flip actuator can display the detected opening and closing information of the gas tank cover or the charging box cover on the display screen of the on-board computer or the central control. The driving motor 4 is a DC motor, which is electrically connected to the control circuit board 3 , and the driving motor 4 is transmission-connected to the output gear 5 , and is used to drive the output gear 5 to rotate, thereby driving the driving gear 2 to rotate.

[0031] When opening or closing the fuel tank lid or the charging box lid, the on-board driving computer or the central control sends a command to the control circuit board 3, and the control circuit board 3 controls the drive motor 4 to operate, thereby driving the output gear 5 to rotate, and the output gear 5 drives the drive gear 2 to rotate, thereby driving the fuel tank lid or the charging box lid to open or close, thereby effectively avoiding misoperation caused by external factors.

[0032] In the embodiment of the present application, in order to accurately detect or control the opening and closing state of the fuel tank cover or the charging box cover, the vehicle-mounted driving computer or the central control also includes a detection element, which includes a Hall element (not shown in the figure) connected to the control circuit board 3 and a magnet 8 installed on the output gear 5 and adapted to the Hall element. The Hall element is also called a Hall sensor or a Hall detection head. The magnet 8 generates a magnetic field as the output gear 5 rotates. The Hall element can sense the change of the magnetic field, thereby detecting the rotation position of the output gear 5; that is, the Hall element senses the position of the magnet 8 to monitor the rotation angle of the output gear 5, so as to judge the rotation angle of the drive gear 2, so that the driving computer detects whether the fuel tank cover or the charging box cover of the car is in an open or closed state. Compared with the angle sensor or position sensor for detecting the rotation angle or position of the drive gear 2 in the prior art, the detection element composed of the Hall element and the magnet 8 is not only simple in structure and easy to assemble, but also does not occupy the space in the actuator housing 1, which can meet the requirements of the miniaturized design of the flip actuator, and the detection element composed of the Hall element and the magnet 8 is low in cost, thereby reducing the production cost of the flip actuator.

[0033] It is understandable that if the software program or circuit of the on-board driving computer or the central control fails or loses power, the drive motor 4 will not be able to start, causing the fuel tank cover or the charging box cover to be unable to open; in order to avoid this situation, in the embodiment of the present application, the flip actuator is also equipped with a clutch mechanism 6, see the attached Figure 2 and 5 As shown, the clutch mechanism 6 is arranged between the drive motor 4 and the output gear 5, and the rotation axis of the clutch mechanism 6 is parallel to the rotation axis of the output gear 5, the drive motor 4 is transmission-connected to the clutch mechanism 6, and the clutch mechanism 6 is transmission-connected to the output gear 5.

[0034] It is not difficult to understand that the clutch mechanism 6 has an engaged state and a disengaged state. In the engaged state, the drive motor 4 drives the output gear 5 to rotate through the clutch mechanism 6, thereby transmitting the output torque of the drive motor 4 to the drive gear 2, so that the drive gear 2 drives the fuel tank cover or the charging box cover to open or close; when the above-mentioned fault occurs and the drive motor 4 cannot be started, the user can manually turn or press the fuel tank cover or the charging box cover. When the rotational torque of the fuel tank cover or the charging box cover is greater than the torque upper limit of the clutch mechanism 6, the clutch mechanism 6 is in a disengaged state, so that the output gear 5 can be rotated relative to the drive motor 4 to unlock, so that the fuel tank cover or the charging box cover can be opened manually.

[0035] In order to increase the rotation torque of the output gear 5 and to avoid damage to the output gear 5 due to excessive rotation torque of the fuel tank cover or the charging box cover, the center hole of the output gear 5 is set as a polygonal hole 501, and the output shaft 500 of the output gear 5 is provided with a polygonal rod portion that matches and plugs into the polygonal hole 501. Figure 2 As shown, this can increase the rotation torque of the output gear 5 and prevent the output gear 5 from being damaged during manual rotation.

[0036] Furthermore, in this embodiment, the clutch mechanism 6 of the flip actuator is independent of the output gear 5, thereby effectively reducing the overall size of the output gear 5, rationally utilizing the space in the actuator housing 1, and making the overall volume of the flip actuator smaller. During installation, the clutch mechanism 6 can be installed independently, thereby making the overall assembly speed of the flip actuator fast.

[0037] Further in this embodiment, Figure 2 and 5 As shown, the clutch mechanism 6 includes a main shaft 600 and a first gear 601 and a second gear 602 rotatably connected to the main shaft 600. The upper and lower ends of the main shaft 600 are respectively connected to the upper and lower walls in the actuator housing 1, and the first gear 601 and the second gear 602 are distributed in sequence from bottom to top along the axial direction of the main shaft 600; the first gear 601 is transmission-connected to the drive motor 4, and a conical accommodating portion 605 is provided on the first gear 601; the second gear 602 is transmission-connected to the output gear 5, and the second gear 602 has a conical engaging portion 606 that is clearance-fitted in the accommodating portion 605 and matches the shape of the accommodating portion 605; the accommodating portion 605 is a cone with a small inner end and a large outer end, and the engaging portion 606 is a cone that matches and fits therewith; the clutch mechanism 6 also includes an elastic member 603 connected to the main shaft 600, and the elastic member 603 makes the first gear 601 The accommodating portion 605 always has a movement tendency to counteract the engaging portion 606 of the second gear 602; under the elastic force of the elastic member 603, the accommodating portion 605 of the first gear 601 and the engaging portion 606 of the second gear 602 cooperate or fit together, so that there is friction between the inner wall of the accommodating portion 605 and the outer wall of the engaging portion 606; therefore, when the clutch mechanism 6 is in an engaged state, the friction between the accommodating portion 605 and the engaging portion 606 causes the first gear 601 to drive the second gear 602 to rotate synchronously; when the output gear 5 or the driving gear 2 is rotated by an external force, and its rotational torque is greater than the maximum torque generated by the friction between the inner wall of the accommodating portion 605 and the outer wall of the engaging portion 606, the clutch mechanism 6 is in a disengaged state, that is, the engaging portion 606 can rotate relative to the accommodating portion 605 to cause the second gear 602 to rotate relative to the first gear 601.

[0038] In this embodiment, if Figure 2 As shown, a worm 400 is connected to the driving shaft of the driving motor 4 , and the first gear 601 is a worm wheel meshing with the worm 400 .

[0039] Further in this embodiment, a baffle 604 is connected to the main shaft 600, and the baffle 604 is a snap spring, and the elastic member 603 is a compression spring, whose lower end abuts against the baffle 604, and the upper end of the elastic member 603 abuts against the bottom of the first gear 601. When the clutch mechanism 6 is in the disengaged state, the first gear 601 applies an axial downward force to the elastic member 603, so that the engaging portion 606 of the second gear 602 overcomes the friction force and can rotate relative to the accommodating portion 605 of the first gear 601.

[0040] In some embodiments, Figure 2 As shown, a double gear 401 is rotatably connected between the clutch mechanism 6 and the output gear 5, and the first tooth portion 402 of the double gear 401 is meshed with the second gear 602, and the second tooth portion 403 of the double gear 401 is meshed with the output gear 5. The arrangement of the double gear 401 can make the transmission structure between the clutch mechanism 6 and the output gear 5 simpler, and can further reduce the overall volume of the flip actuator.

[0041] In the related art, the pins connecting the flip actuator and the driving computer are connected to the circuit board and connected to the output terminal of the housing through injection molding; and in some embodiments of the present application, such as Figure 2 and Figure 3 As shown, the control circuit board 3 is electrically connected to a pin module 7, which includes a plurality of pins 700 and a base block 701 fixedly connected to the pins 700; a pin seat 100 is provided in the actuator housing 1 for the pins 700 to extend from the inside to the outside, and the inner end of the pin seat 100 is against the base block 701. The pin 700 and the base block 701 are first formed into one piece by injection molding, and then assembled on the control circuit board 3. A pin holder 100 is arranged on the actuator housing 1, and a through hole 101 is provided on the pin holder 100 for the pin 700 to extend out. When the control circuit board 3 and the actuator housing 1 are assembled, the pin 700 passes through the through hole 101 of the pin holder 100, and the inner end of the pin holder 100 abuts against the base block 701 on the pin 700. That is, in the present application, the pin module 7 is an assembled structure, which not only facilitates the assembly of the pin 700, but also allows the pin module 7 to be easily replaced.

[0042] In the description of the embodiments of the present application, it should be noted that in the description of the present application, terms such as "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description, and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present application.

[0043] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "in the present embodiment", "specific example", or "some examples" etc. means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0044] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A flip actuator, characterized in that: include An actuator housing, wherein an output gear is rotatably connected to the actuator housing, and a driving gear is coaxially connected to the output shaft of the output gear and can rotate synchronously with the output gear, and the driving gear is used to drive the opening and closing of the fuel tank cover or the charging box cover; A control circuit board is installed in the actuator housing and is electrically connected to the on-board computer; A detection element, comprising a Hall element connected to the control circuit board and a magnet mounted on the output gear and matched with the Hall element, the detection element being used to detect the rotation position of the output gear; The drive motor is connected in the actuator housing and is electrically connected to the control circuit board. The drive motor is transmission-connected to the output gear and is used to drive the output gear to rotate.

2. The flip actuator according to claim 1, characterized in that: The flip actuator also includes a clutch mechanism, which is arranged between the drive motor and the output gear, and the rotation axis of the clutch mechanism is parallel to the rotation axis of the output gear. The drive motor is transmission-connected to the clutch mechanism, and the clutch mechanism is transmission-connected to the output gear.

3. The flip actuator according to claim 2, characterized in that: The clutch mechanism comprises a main shaft and a first gear and a second gear rotatably connected to the main shaft, the first gear is transmission-connected to the driving motor, and a conical receiving portion is provided on the first gear; The second gear is drivingly connected to the output gear, and the second gear has a conical engaging portion which is loosely fitted in the accommodating portion and matches the shape of the accommodating portion; the clutch mechanism further comprises an elastic member connected to the main shaft, and the elastic member enables the accommodating portion of the first gear to always have a movement tendency to abut against the engaging portion of the second gear; when the clutch mechanism is in an engaged state, the friction force between the accommodating portion and the engaging portion enables the first gear to drive the second gear to rotate synchronously; When the clutch mechanism is in a disengaged state, the engaging portion is rotatable relative to the accommodating portion to cause the second gear to rotate relative to the first gear.

4. The flip actuator according to claim 3, characterized in that: The accommodating portion is in a cone shape with a small inner end and a large outer end. A blocking piece is connected to the main shaft. The lower end of the elastic member abuts against the blocking piece, and the upper end of the elastic member abuts against the bottom of the first gear.

5. The flip actuator according to claim 3, characterized in that: A double gear is rotatably connected between the clutch mechanism and the output gear, and the first tooth portion of the double gear is meshed with the second gear, and the second tooth portion of the double gear is meshed with the output gear.

6. The flip actuator according to claim 3, characterized in that: A worm is connected to the driving shaft of the driving motor, and the first gear is a worm wheel meshing with the worm.

7. The flip actuator according to claim 1, characterized in that: The central hole of the output gear is set as a polygonal hole, and the output shaft of the output gear is provided with a polygonal rod portion which is matched and plugged with the polygonal hole.

8. The flip actuator according to claim 1, characterized in that: The control circuit board is electrically connected to a pin module, which includes a plurality of pins and a base block fixedly connected to the pins; a pin seat for the pins to extend from the inside to the outside is provided in the actuator housing, and the inner end of the pin seat abuts against the base block.

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