Automobile hood mechanism

Abstract

The application discloses a kind of automobile mouth cover mechanism, comprising: mouth cover body, mouth cover cover, the rotatable connecting piece is provided on the mouth cover body, and drive mechanism, the rotatable connecting piece is hinged with the mouth cover body, one end of the mouth cover cover is fixedly connected with the rotatable connecting, the drive mechanism includes electric drive device and the rotating member connected with electric drive device, the rotating member rotates under the drive of the electric drive device, the rotating member is switched between driving state and sliding state in the process of rotation;In the driving state, the rotating member is connected with the rotatable connecting piece, and the rotatable connecting piece is driven to rotate;In the sliding state, the rotating member is separated from the rotatable connecting piece.The rotating connecting piece will not contact with the rotating member when the mouth cover cover is manually controlled, so that external force drives electric drive device, and electric drive device failure is caused.

Description

[0001] This application is a divisional application of the invention patent application filed on November 30, 2021, with application number 202111439935.6 and invention title "Automobile Cover Mechanism". Technical Field

[0002] This invention relates to the field of automotive technology, and in particular to an automotive cover mechanism. Background Technology

[0003] Existing gasoline-powered vehicles require a fuel filler cap for refueling, while electric vehicles require a charging port for charging. To prevent dust from entering the fuel filler cap or charging port, and for aesthetic reasons, a fuel filler cap is typically used to cover the fuel filler cap, and a charging port cap is used to cover the charging port. These fuel filler caps and charging port caps will be referred to as "caps" from this perspective.

[0004] Existing charging ports, designed for ease of use, are electrically driven, opening via a motor. However, these electrically driven ports are susceptible to problems if the motor fails or the battery is dead, preventing the port from opening fully. This is particularly problematic in cold regions, where the failure rate is high. In such cases, jumper cables or a power bank are needed to charge the battery, or the port may need to be forcibly pried open. However, this external force can reverse the motor's rotation, potentially causing further motor failure.

[0005] In addition, even if the motor is running normally, after the user opens the cover through the motor to charge or refuel, the user or gas station staff may manually close the door. Because the cover meshes with the motor's gears, an external force will be generated to pull the motor back, which can easily cause motor failure.

[0006] Finally, the motor needs to be able to accurately determine the opening and closing angle of the cover, which places high demands on the motor. Therefore, it is necessary to use a high-cost motor or add a Hall sensor for judgment. Summary of the Invention

[0007] Therefore, it is necessary to provide an automotive cover mechanism to address the technical problem that manual operation of existing electrically driven cover plates can easily cause motor failure.

[0008] This invention provides an automotive hatch mechanism, comprising: a hatch body and a hatch cover plate. The hatch body is provided with a driving mechanism and a rotating connector. The rotating connector is hinged to the hatch body. One end of the hatch cover plate is fixedly connected to the rotating connector. The driving mechanism includes an electric driving device and a rotating component connected to the electric driving device. The rotating component rotates under the drive of the electric driving device, and the rotating component switches between a driving state and a sliding state during rotation.

[0009] In the driving state, the rotating component is connected to the rotating connecting component, driving the rotating connecting component to rotate;

[0010] In the sliding state, the rotating component is separated from the rotating connecting component.

[0011] Furthermore, the first end of the rotating connector is provided with a connecting gear, and the rotating component is a non-full-tooth gear, which includes a toothed portion and a toothless portion. In the driving state, the toothed portion meshes with the connecting gear, and in the sliding state, the toothed portion separates from the connecting gear.

[0012] Furthermore, the drive mechanism also includes a driven gear that meshes with the connecting gear. In the driving state, the toothed portion meshes with the driven gear, and in the sliding state, the toothed portion separates from the driven gear.

[0013] Furthermore, the central angle corresponding to the toothless portion is greater than or equal to 180°.

[0014] Furthermore, the electric drive device is a drive motor, and the non-full-tooth gear is connected to the rotating shaft of the drive motor.

[0015] Furthermore, it also includes a cap reset mechanism connected to the rotating connector. In the driving state, the rotating member is connected to the rotating connector, driving the rotating connector to rotate and overcoming the preload of the cap reset mechanism.

[0016] Furthermore, the cap reset mechanism is a torsion spring, one end of which is connected to the second end of the rotating connector, and the other end is fixed to the cap body.

[0017] Furthermore, the cover body is provided with two reset limiting blocks with a certain gap, and the other end of the torsion spring is disposed between the two reset limiting blocks.

[0018] Furthermore, the first end of the rotating connector is provided with a connector gear, the rotating component is a dial, the driving mechanism also includes a grooved wheel and a grooved wheel gear, the dial is provided with a cylindrical pin, the grooved wheel is provided with a grooved wheel guide groove that cooperates with the cylindrical pin, the grooved wheel is connected to the grooved wheel gear, and the grooved wheel gear meshes with the connector gear;

[0019] In the driving state, the cylindrical pin enters the guide groove of the grooved wheel; in the sliding state, the cylindrical pin rotates out of the guide groove of the grooved wheel.

[0020] Furthermore, the electric drive device is a drive motor that rotates in a single direction.

[0021] Furthermore, a locking mechanism is provided within the cover body. A locking pin is provided on the side of the cover plate facing the cover body. The locking mechanism includes a locking tongue, a lock reset mechanism, and an unlocking mechanism. The locking tongue is kept in an extended state under the drive of the lock reset mechanism and retracted under the control of the unlocking mechanism. When the locking tongue is extended, it can engage with the locking pin.

[0022] Furthermore, in the driving state, the rotating member drives the rotating connecting member to rotate in the first rotation direction. When the latch extends, the rotation of the rotating connecting member in the first rotation direction drives the cover plate to rotate in the direction of the cover body.

[0023] Furthermore:

[0024] The travel distance of the cover plate in the first rotation direction is greater than the travel distance of the cover plate from the full travel position to the locked position, where the locked position is the position where the locking pin is engaged by the locking tongue;

[0025] The stroke of the cover plate in the first rotation direction is less than the maximum stroke that the cover plate can move from its full stroke position to the locking pin, where the full stroke position is the position where the cover plate is fully open.

[0026] Furthermore, it also includes a full-stroke position sensor for detecting the full-stroke position, and after the full-stroke position sensor outputs a position signal, the electric drive device is allowed to drive the rotating component to rotate.

[0027] Furthermore, it also includes a locking position sensor for detecting the locking position. After the locking position sensor outputs a positioning signal for a preset time, the electric drive device stops driving the rotating component to rotate.

[0028] Furthermore, the cover plate is fixedly connected to the second end of the rotating connector via a crank arm.

[0029] This invention switches between a driving state and a sliding state by a rotating component. In the driving state, the rotating component is connected to the rotating connector and driven by an electric drive device, enabling electric control of the cover plate. In the sliding state, the rotating component is separated from the rotating connector. Therefore, when the cover plate is manually controlled, the rotating connector will not contact the rotating component, thus preventing external force from driving the electric drive device and causing it to malfunction. Furthermore, because the sliding state provides sufficient redundancy, it can tolerate the accumulation of angular errors caused by the cover plate closing or opening, thus eliminating the need for an expensive electric drive device and reducing costs. Attached Figure Description

[0030] Figure 1This is a schematic diagram of the structure of an automobile hatch mechanism according to the present invention;

[0031] Figure 2 This is an exploded view of an automobile hatch mechanism according to the present invention;

[0032] Figure 3 This is a schematic diagram of the structure of the cover plate when it is fully opened according to an embodiment of the present invention;

[0033] Figure 4 This is a schematic diagram of the structure of the cover plate when it is closed according to an embodiment of the present invention;

[0034] Figure 5 This is a schematic diagram of the structure of a manually closing cover plate according to an embodiment of the present invention;

[0035] Figure 6 This is a schematic diagram of the torsion spring structure when the cover plate is fully opened according to an embodiment of the present invention;

[0036] Figure 7 This is a schematic diagram of the torsion spring structure when the cover plate is closed according to an embodiment of the present invention;

[0037] Figure 8 This is a schematic diagram of the locking mechanism when the cover is opened according to an embodiment of the present invention;

[0038] Figure 9 This is a schematic diagram of the locking mechanism when the cover plate is closed according to an embodiment of the present invention;

[0039] Figure 10 This is a schematic diagram of the structure of a car hatch mechanism according to another embodiment of the present invention;

[0040] Figure 11 This is a schematic diagram of the drive mechanism structure of another embodiment of the automobile cover mechanism of the present invention;

[0041] Figure 12 This is a schematic diagram showing the connection between the cover plate and the rotating connector according to an embodiment of the present invention;

[0042] Figure 13 This is a cross-sectional view of the cover plate and the rotating connecting member according to an embodiment of the present invention;

[0043] Figure 14 for Figure 13 AA section diagram.

[0044] Figure Labels

[0045] 1-Cover body; 11-Refueling / charging port; 2-Cover plate; 21-Locking pin; 22-Crank arm; 3-Rotating connector; 31-Connector gear; 32-First rotating shaft; 33-Connector shaft; 4-Drive mechanism; 41-Drive mechanism frame; 5-Non-full-tooth gear; 51-Toothed part; 52-Gearless part; 6-Driven gear; 61-Second driven gear; 7-Torsion spring; 71-First end of torsion spring; 72-Second end of torsion spring; 8-Reset limit block; 9-Locking mechanism; 91-Lock tongue; 901-Locking pin cavity; 902-Second reset spring; 903-Locking pin Slider; 911-Lock tongue through hole; 92-Solenoid valve push rod drive mechanism; 93-First return spring; 94-Button mechanism; 941-Button key post; 942-Mechanical button; 943-Mechanical button self-locking mechanism; 95-Connecting shaft; 951-First shaft part; 952-Second shaft part; 953-Shaft protrusion; 954-Second shaft; 955-Lock position sensor; 100-Toggle plate; 101-Cylindrical pin; 102-Gateway; 103-Gateway guide groove; 104-Gateway gear; A-Closing direction; B-Unlocking direction; F-Thrust. Detailed Implementation

[0046] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," "down," "clockwise," and "counterclockwise" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0047] Example 1

[0048] like Figure 1 and Figure 2 As shown, the present invention provides an automotive hatch mechanism, comprising: a hatch body 1 and a hatch cover plate 2. The hatch body 1 is provided with a rotating connector 3 and a driving mechanism 4. The rotating connector 3 is hinged to the hatch body 1. One end of the hatch cover plate 2 is fixedly connected to the rotating connector 3. The driving mechanism includes an electric drive device and a rotating component connected to the electric drive device. The rotating component rotates under the drive of the electric drive device, and the rotating component switches between a driving state and a sliding state during the rotation process.

[0049] In the driving state, the rotating component is connected to the rotating connecting component 3, driving the rotating connecting component 3 to rotate;

[0050] In the sliding state, the rotating component is separated from the rotating connecting component 3.

[0051] Specifically, the rotating connector 3 is installed on the cap body 1, and the first end of the rotating connector 3 is connected to the first rotating shaft 32. The first rotating shaft 32 is inserted into the cap body 1 and can rotate on the cap body 1. For example... Figure 1 and Figure 2 As shown, the first rotating shaft 32 rotates clockwise or counterclockwise, which in turn drives the rotating connecting piece 3 to rotate clockwise or counterclockwise.

[0052] The second end of the rotating connector 3 is fixedly connected to one end of the cover plate 2. Therefore, the clockwise or counterclockwise rotation of the rotating connector 3 also simultaneously drives the cover plate 2 to rotate clockwise or counterclockwise. Figure 1 and Figure 2 For example, if the connecting piece 3 is rotated clockwise, the cover plate 2 will rotate towards the cover body 1, thereby closing the refueling and charging port 11 of the cover body 1. If the connecting piece 3 is rotated counterclockwise, the cover plate 2 will rotate away from the cover body 1, thereby opening the refueling and charging port 11 of the cover body 1.

[0053] The vehicle cover mechanism of this application can be either a fuel filler cover mechanism or a charging cover mechanism. The cover body 1 is provided with a fuel filler / charging port 11. When the vehicle cover mechanism of this application is used as a fuel filler cover mechanism, the fuel filler / charging port 11 is a fuel filler port; when the vehicle cover mechanism of this application is used as a charging cover mechanism, the fuel filler / charging port 11 is a charging port. A locking mechanism 9 is disposed inside the cover body 1. When the cover plate 2 closes or opens the fuel filler / charging port 11, it will cause the locking pin 21 to insert into or be withdrawn from the locking mechanism 9.

[0054] The drive mechanism is an electrically driven mechanism, which includes an electric drive unit and a rotating component connected to the electric drive unit. The electric drive unit drives the rotating component to rotate. The rotating component switches between a driven state and a sliding state when it rotates.

[0055] In the driving state, the rotating component is connected to the rotating connector 3, driving the rotating connector 3 to rotate. Therefore, the rotating component can be driven by an electric drive mechanism to control the rotating connector 3 and drive the rotation of the cover plate 2.

[0056] In the sliding state, the rotating component is separated from the rotating connecting component 3. Manually controlling the rotation of the cover plate 2 will drive the rotating connecting component 3. However, since the rotating component is separated from the rotating connecting component 3 in the sliding state, manually controlling the rotation of the cover plate 2 will not drive the rotating component, thus avoiding external force driving the electric drive device and causing it to malfunction.

[0057] The car cover mechanism of the present invention, in addition to the cover mechanism shown in the figure, can also be used in a rotary-opening car cover mechanism or a sliding-opening car cover mechanism.

[0058] This invention allows the rotating component to switch between a driving state and a sliding state. In the driving state, the rotating component is connected to the rotating connector and driven by an electric drive device to achieve electric drive control of the cover plate. In the sliding state, the rotating component is separated from the rotating connector. Therefore, when the cover plate is manually controlled, the rotating connector will not contact the rotating component, thereby avoiding external force from driving the electric drive device and causing it to malfunction.

[0059] Example 2

[0060] like Figure 1 and Figure 2 As shown, the present invention provides an automotive hatch mechanism, comprising: a hatch body 1 and a hatch cover plate 2. The hatch body 1 is provided with a rotating connector 3, a driving mechanism 4, and a hatch reset mechanism. The rotating connector 3 is hinged to the hatch body 1. One end of the hatch cover plate 2 is fixedly connected to the rotating connector 3. The hatch reset mechanism is connected to the rotating connector 3. The driving mechanism includes an electric driving device and a rotating component connected to the electric driving device. The rotating component rotates under the drive of the electric driving device, and the rotating component switches between a driving state and a sliding state during the rotation process.

[0061] In the driving state, the rotating component is connected to the rotating connecting component 3, driving the rotating connecting component 3 to rotate and overcome the preload force of the cap reset mechanism;

[0062] In the sliding state, the rotating component is separated from the rotating connecting component 3;

[0063] The first end of the rotating connector 3 is provided with a connector gear 31. The rotating component is a non-full-tooth gear 5, which includes a toothed portion 51 and a toothless portion 52. In the driving state, the toothed portion 51 meshes with the connector gear 31. In the sliding state, the toothed portion 51 is separated from the connector gear 31. The driving mechanism 4 also includes a driven gear 6, which meshes with the connector gear 31. In the driving state, the toothed portion 51 meshes with the driven gear 6. In the sliding state, the toothed portion 51 is separated from the driven gear 6. The electric drive device is a drive motor. The non-full-tooth gear 5 is connected to the rotating shaft of the drive motor. The drive motor rotates in one direction.

[0064] The cap reset mechanism is a torsion spring 7. One end of the torsion spring 7 is connected to the second end of the rotating connector 3, and the other end is fixed on the cap body 1. The cap body 1 is provided with two reset limiting blocks 8 with a certain gap. The other end of the torsion spring 7 is located between the two reset limiting blocks 8.

[0065] A locking mechanism 9 is provided inside the cover body 1. A locking pin 21 is provided on the side of the cover plate 2 facing the cover body 1. The locking mechanism 9 includes a locking tongue 91 and an unlocking mechanism. The locking tongue 91 is kept in an extended state under the drive of the lock reset mechanism and retracted under the control of the unlocking mechanism. When the locking tongue 91 is extended, it can engage with the locking pin 21. In the driving state, the rotating member drives the rotating connecting member 3 to rotate in a first rotation direction. When the locking tongue 91 is extended, the rotation of the rotating connecting member 3 in the first rotation direction drives the cover plate 2 to rotate towards the cover body 1.

[0066] The travel distance of the cover plate 2 in the first rotation direction is greater than the travel distance of the cover plate 2 from the full travel position to the locked position, where the locked position is the position where the locking pin 21 is engaged by the locking tongue 91.

[0067] The stroke of the cover plate 2 in the first rotation direction is less than the maximum stroke that the cover plate 2 can move from its full stroke position to the locking pin 91. The full stroke position is the position where the cover plate 2 is fully open.

[0068] It also includes a full-stroke position sensor for detecting the full stroke position, and after the full-stroke position sensor outputs a position signal, the electric drive device is allowed to drive the rotating part to rotate;

[0069] It also includes a locking position sensor for detecting the locking position, and after the locking position sensor outputs a position signal, the electric drive device stops driving the rotating part to rotate.

[0070] Specifically, the cover plate 2 is fixedly connected to the rotating connector 3 via a crank arm 22. Preferably, the crank arm 22 is a gooseneck type crank arm. Figures 12 to 14 As shown, the rotating connector 3 is provided with a connecting shaft 33, which is connected to the crank arm 22 and inserted into the cap body 1, hinged to the cap body 1. The rotating component is a non-full-tooth gear 5, preferably a half-tooth gear. The non-full-tooth gear 5 includes a toothed portion 51 and a toothless portion 52. When the toothed portion 51 meshes with the connecting gear 31, it is in a driving state; when the toothed portion 51 is separated from the connecting gear 31, it is in a sliding state. The connecting gear 31 is connected to the first end of the rotating connector 3, preferably to the first shaft 32 of the rotating connector. Figure 12As shown, the drive mechanism 4 includes a drive mechanism frame 41. One end of the first rotating shaft 32 is inserted into the rotating connector 3, and the other end is inserted into the connector gear 31 housed within the drive mechanism frame 41. The drive mechanism frame 41 is fixed to the side of the cover body 1. The rotation of the connector gear 31 will drive the first rotating shaft 32 to rotate, thereby driving the rotating connector 3 to rotate. The electric drive device is preferably a motor. The non-full-tooth gear 5 is connected to the rotating shaft of the drive motor and is driven to rotate by the drive motor. The drive mechanism 4 also includes a driven gear 6, which meshes with the connector gear 31. When in the driving state, the toothed portion 51 meshes with the driven gear 6, thereby driving the connector gear 31 to rotate. When in the sliding state, the toothed portion 51 separates from the driven gear 6, and the toothless portion 52 faces the driven gear 6. Therefore, the rotation of the rotating connector 3 caused by the manual operation of the cover plate 2 will not exert force on the non-full-tooth gear 5, thus preventing external force from driving the electric drive device and causing it to malfunction. Driven gear 6 can be a single driven gear or a group of driven gears. For example... Figure 14 As shown, a secondary driven gear 61 is provided. When in the driving state, the toothed part 51 meshes with the driven gear 6, driving the driven gear 6 to rotate. The driven gear 6 and the secondary driven gear 61 are connected by a connecting shaft, thereby driving the secondary driven gear 61 to rotate with the driven gear 6. The secondary driven gear 61 meshes with the connecting gear 31, thereby driving the connecting gear 31 to rotate.

[0071] Preferably, the sliding state accounts for more than or equal to 50% of the rotation process of the rotating component. For example, the central angle corresponding to the toothless portion 52 of the non-full-tooth gear 5 can be greater than or equal to 180°. Preferably, the non-full-tooth gear 5 can be a half-tooth gear, in which case the toothed portion 51 and the toothless portion 52 each occupy half of the circumference of the half-tooth gear.

[0072] In addition, this embodiment also includes a cap reset mechanism, preferably a torsion spring 7. One end of the torsion spring 7 is connected to the second end of the rotating connector 3, and the other end is limited by two reset limiting blocks 8 with a certain gap on the side wall of the cap body 1. In the driving state, the rotation of the rotating connector 3 will drive one end of the torsion spring 7 to overcome the preload of the torsion spring 7. When in the sliding state, when the rotating connector 3 loses the driving force of the motor, it can be reset by the torsion spring 7, releasing the preload and driving the rotating connector 3 to rotate.

[0073] Electric control method:

[0074] 1) Close the cover plate

[0075] like Figure 3 and Figure 6The diagram shows the lid 2 in its fully open state, at which point it is closed by a motor. When the motor rotates, it drives the incomplete gear 5 to rotate clockwise. After the incomplete gear 5 rotates a certain angle, the toothed part 51 meshes with the driven gear 6. The driven gear 6 rotates counterclockwise, causing the connecting gear 31, which is connected to the rotating connecting piece 3, to rotate clockwise. (The diagram shows the lid 2 in its fully open state, which is closed by a motor.) Figure 4 and Figure 7 As shown, the driven gear 6 overcomes the force of the torsion spring 7, causing the cover plate 2 to rotate in the first rotation direction A, for example, 91°, that is, towards the cover body 1, thereby inserting the locking pin 21 into the locking mechanism 9 inside the cover body 1 and closing the refueling and charging port.

[0076] When the non-full-tooth gear 5 is in the driving state, it drives the rotating connecting piece 3 to rotate in the first rotation direction, and drives the cover plate 2 to rotate towards the cover body 1 to close the refueling and charging port. After that, the non-full-tooth gear 5 continues to rotate until it reaches the toothless part 52, entering the sliding state. At this time, the motor idles, and the driven gear 6 rotates counterclockwise under the action of the torsion spring 7. The cover plate 2 rotates counterclockwise back to the locking position (e.g., 90 degrees), engaging with the locking tongue 91 of the locking mechanism 9 to achieve locking and fixation. The non-full-tooth gear 5 can continue to rotate until it completes one revolution and returns to the initial position to stop.

[0077] Because the non-full-tooth gear 5 has a travel redundancy in the sliding state, similar to a half-tooth gear with 180° redundancy, sufficient redundancy can be provided to tolerate the accumulation of angle errors caused by the opening and closing of the cover. Therefore, there is no need to use an expensive motor, reducing costs. The angle of each rotation of the motor can be set to a simple value, such as 360°.

[0078] To avoid the risk of the driven gear 6 reversing and the non-full-tooth gear 5 grinding, the risk of grinding can be avoided as long as the locking pin 21 of the cover plate 2 rotates to the toothless part 52 after the locking mechanism is inserted. Since the locking pin 21 has sufficient displacement space within the locking mechanism, there is ample redundancy. Therefore, by designing the differential ratio between the driven gear 6 and the connecting gear 31, the risk of grinding can be avoided.

[0079] 2) Open the cover plate

[0080] When unlocking is required, an unlocking command is given, and the locking tongue 91 is retracted through the unlocking mechanism. Then, the driven gear 6 rotates counterclockwise under the action of the torsion spring 7, and the cover plate 2 rotates counterclockwise, thereby opening the refueling and charging port 11.

[0081] Manual control mode:

[0082] 1) Close the charging door:

[0083] like Figure 5As shown, when a force F is applied by hand to push the cover plate 2, overcoming the force of the torsion spring 7, the non-full gear 5 of the motor is disengaged from the driven gear 6, and the motor will not be dragged backward. When the locking pin 21 is inserted into the locking mechanism 9, the locking pin 21 engages with the locking tongue 91.

[0084] 2) Open the charging door:

[0085] Press the cover plate 2 by hand, and control the bolt 91 to retract through the manual press switch or mechanical unlocking switch of the unlocking mechanism. The bolt 21 unlocks the bolt 91, and the cover plate 2 opens automatically under the force of the torsion spring 7.

[0086] Normally, users open the cap 2 electronically to charge or refuel. After charging or refueling, users or gas station staff often manually close the cap 2 due to usage habits. In this embodiment, when the cap 2 is open, the toothless portion 52 of the non-full-tooth gear 5 connected to the motor is directly opposite the driven gear 6. Therefore, closing the cap 2 will not drive the non-full-tooth gear 5, thus preventing reverse drag on the motor.

[0087] When the vehicle is in normal condition, customers can choose between two options: electronically openable cover plate 2 + manually closed cover plate 2, or electronically openable cover plate 2 + electronically closed cover plate 2, depending on their preferences.

[0088] If the vehicle loses power or electronic components malfunction, the cover plate 2 can be opened manually and then closed manually.

[0089] The above embodiment describes the closing of the cover plate 2 by rotating a motor. However, those skilled in the art will understand that the cover plate 2 can also be opened by rotating a motor. For example, after the control latch 91 retracts, the motor drives the non-full-tooth gear 5 to rotate counterclockwise, thereby opening the cover plate 2. After the cover plate 2 is fully opened, the non-full-tooth gear 5 continues to rotate until the toothless part 52 is directly opposite the driven gear 6, entering a sliding state.

[0090] The bolt 91 of the locking mechanism 9 is extended by the lock reset mechanism and retracted by the unlocking mechanism. The unlocking mechanism includes electronic unlocking and mechanical unlocking. Among them, electronic unlocking includes communication unlocking and manual unlocking.

[0091] like Figure 8 and Figure 9As shown, the unlocking mechanism includes a solenoid valve push rod drive mechanism 92, and the lock reset mechanism includes a first reset spring 93. The solenoid valve push rod drive mechanism 92 is communicatively connected to an external device, which controls its energization or de-energization. For example, the solenoid valve push rod drive mechanism 92 is controlled by a controller to switch its power supply on and off; the power supply can be a battery. The controller communicates with in-vehicle buttons, touchscreens, mobile phones, voice control devices, or charging guns. Signals are sent from these devices to the controller to control the energization or de-energization of the solenoid valve push rod drive mechanism 92. The solenoid valve push rod drive mechanism 92 includes a solenoid valve push rod connected to the lock tongue 91 and a solenoid valve body. Figure 9 As shown, the latch 91 is engaged with the locking pin 21, and is in the locked state of the lock structure. When the solenoid valve push rod drive mechanism 92 is energized, the solenoid valve push rod moves towards the solenoid valve body. Since the solenoid valve push rod is connected to the latch 91, it drives the latch 91 to move in the unlocking direction B away from the locking pin 21, thus separating the latch 91 from the locking pin 21 and switching from the locked state of the lock structure to the unlocked state. At the same time, the first return spring 93 is sleeved on the solenoid valve push rod, so the first return spring 93 will be pressed simultaneously. At this time, as... Figure 8 As shown, the locking pin 21 can be pulled out, thereby opening the cover plate 2. The solenoid valve push rod drive mechanism 92 will lose power after being energized for a period of time. Similarly, when the solenoid valve push rod drive mechanism 92 malfunctions, or the battery is dead, the solenoid valve push rod drive mechanism 92 will also lose power. At this time, as... Figure 8 As shown, the first return spring 93 resets, driving the latch 91 to move in the opposite direction of the unlocking direction B to reset, thereby pushing the latch 91 back to its original position. The drive motor or the user applies force F, rotating the cover plate 2 towards the cover body 1, pressing the locking pin 21 into the locking mechanism 9. When the end of the locking pin 21 touches the latch 91, the inclined surface of the locking pin 21 engages with the inclined surface of the latch 91. Continuing to press down the cover plate 2, the locking pin 21 pushes the latch 91 to the left, causing the latch 91 to retract. When the locking pin 21 continues to descend... Figure 9 Position: Locking pin 21 is stuck by locking tongue 91.

[0092] This embodiment can also employ a mechanical unlocking method, such as... Figure 9As shown, the latch 91 engages with the locking pin 21, placing it in the locked state. At this time, the locking pin 21 is in the locked position, the mechanical button 942 is in the released position, and the button post 941 is in the released position. The cover plate 2 covers the mechanical button 942. When the user presses the cover plate 2, the cover plate 2 presses down, pressing the mechanical button 942 to the pressed position, thereby driving the button post 941 to move to the pressed position. The movement of the button post 941 from the released position to the pressed position drives the second rotating shaft 952 away from one end of the second rotating shaft 954. Since the connecting rotating shaft 95 and the latch 91 form a crank-slider mechanism, the latch 91 is equivalent to the slider of the crank-slider mechanism, and the connecting rotating shaft is equivalent to the crank of the crank-slider mechanism. The second rotating shaft 952 and the first rotating shaft 951 preferably have an obtuse angle. When the second pivot 952 is driven by the key post 941 to rotate around the second pivot 954, the first pivot 951 also rotates around the second pivot 954 simultaneously. This causes the pivot protrusion 953 to insert into the bolt hole 911, driving the bolt 91 to move in the unlocking direction B away from the bolt 21. The bolt 91 then separates from the bolt 21, achieving manual unlocking. If the user continues to press the cover plate 2 downwards, the mechanical key self-locking mechanism 943 self-locks, and the connecting pivot 95 drives the bolt 91 to retract and stop at that position. At this time... Figure 8 As shown, the locking pin 21 can be pulled out from the locking mechanism 9, thereby opening the cover plate 2. Simultaneously, the lock reset mechanism, such as the first reset spring 93, is pressed. The mechanical button self-locking mechanism 943 employs a method similar to a known ballpoint pen mechanism to achieve self-locking.

[0093] When the user needs to close the cover plate 2, by pressing the cover plate 2, the locking pin 21 descends, the mechanical button self-locking mechanism 943 unlocks, the mechanical button 942 moves upward, and the locking tongue 91 extends under the drive of the lock reset mechanism, such as the first reset spring 93, and the locking tongue 91 engages with the locking pin 21.

[0094] In addition, this embodiment also provides a second return spring 902 and a lock pin slider 903 at the bottom of the lock pin cavity 901. Therefore, when the lock tongue 91 separates from the lock pin 21, the lock pin slider 903 pushes the lock pin 21 upward under the push of the second return spring 902. When the user manually closes the cover plate 2, the lock pin 21 descends, and the mechanical button self-locking mechanism 943 unlocks. When the user releases the cover plate 2, the mechanical button 942 moves upward, and the lock tongue 91 extends under the drive of the lock reset mechanism, such as the first return spring 93. At the same time, the lock pin 21 rises under the drive of the lock pin slider 903 until it engages with the lock tongue 91.

[0095] This embodiment can also include a manual push-button switch for manual unlocking. The manual push-button switch is fixed to the top of the locking mechanism 9, and the locking tongue 91 engages with the locking pin 21, placing the locking mechanism in a locked state. At this time, the locking pin 21 is in the locked position. When the cover plate 2 is pressed down, the locking pin 21 moves to the manual unlocking position, and the cover plate 2 moves to press the manual push-button switch. The manual push-button switch can be turned on when the cover plate 15 is pressed and turned off when the cover plate 15 is released. Alternatively, the manual push-button switch can also be equipped with a self-locking mechanism. In the off state, when the manual push-button switch is pressed, it switches to the on state and remains in the on state. In the on state, when the manual push-button switch is pressed, it switches to the off state. When the manual press switch is activated, the drive mechanism is energized, driving the bolt 91 to move in the unlocking direction B, away from the locking pin 21. This separates the bolt 91 from the locking pin 21, switching the lock structure from the locked state to the unlocked state. Simultaneously, the lock reset mechanism, such as the first reset spring 93, is compressed. At this time, as... Figure 8 As shown, the locking pin 21 can be pulled out from the locking mechanism 9, thereby opening the cover plate 2. If the manual press switch is not equipped with a self-locking mechanism, when the cover plate 2 is released by pressing the switch, the manual press switch rebounds and switches to the open state, and the latch 91 extends under the drive of the reset mechanism, such as the first reset spring 93. The user can press the cover plate 2, and when the end of the locking pin 21 touches the latch 91, the inclined surface of the end of the locking pin 21 cooperates with the inclined surface of the latch 91. If the cover plate 2 is pressed down further, the locking pin 21 pushes the latch 91 to the left, causing the latch 91 to retract. When the locking pin 21 continues to descend, the locking pin 21 is locked by the latch 91.

[0096] If the manual press switch is set with a press-lock mechanism, when the user needs to close the cover plate 2, by pressing the cover plate 2, the locking pin 21 descends, the press-lock mechanism of the manual press switch is unlocked, the manual press switch is switched to the off state, and the locking tongue 91 extends under the drive of the lock reset mechanism, such as the first reset spring 93, and the locking tongue 91 engages with the locking pin 21.

[0097] The travel distance of the cover plate 2 in the first rotational direction is greater than the travel distance of the cover plate 2 from its full travel position to the locked position, where the locked position is where the locking pin 21 is engaged by the locking tongue 91. The travel distance of the cover plate 2 in the first rotational direction is less than the maximum travel distance that the cover plate 2 can move from its full travel position to the maximum travel distance that the locking pin 21 can move, where the full travel position is the position where the cover plate 2 is fully open. When switching from the driving state to the sliding state, the cover plate 2 is guaranteed to spring back to the locking tongue 91 position and be engaged.

[0098] The stroke of the cover plate 2 can match the stroke of the locking pin 21. For example... Figure 3 and Figure 6The position of the cover plate 2 shown is the full travel position, and the position of the locking pin 21 at this time can be taken as the full travel position. Figure 9 The position of the cover plate 2 shown is the locked position, and the position of the locking pin 21 at this time can be used as the locked position.

[0099] Finally, position sensors with position detection functions are set at both the full-stroke and locked positions. The motor can only start when the full-stroke position sensor is activated. This prevents the cover from failing due to spring failure or insufficient force, or from being pressed down on the cover by human error, causing the cover to not fully open. In such cases, if the motor starts to close the cover, and the cover reaches the maximum position that the locking pin can move before the drive stroke enters the sliding stroke, the motor gear and driven gear will not disengage, causing gear grinding. This also prevents the cover from being unable to open. Finally, after the locked position sensor 955 has been activated for a period of time, the motor will be automatically powered off to further ensure safety. Both the full-stroke and locked position sensors can be implemented using microswitches. The full-stroke position can be detected by rotating the connecting piece 3 when the cover 2 is in the full-stroke position.

[0100] This embodiment switches between a driving state and a sliding state using a non-full-tooth gear. In the driving state, the non-full-tooth gear is connected to the rotating connector and driven by an electric drive device, enabling electric control of the cover plate. In the sliding state, the non-full-tooth gear is separated from the rotating connector. Therefore, when manually controlling the cover plate, the rotating connector will not contact the rotating component, thus preventing external force from driving the electric drive device and causing it to malfunction. Furthermore, the non-full-tooth gear provides sufficient redundancy to tolerate the accumulation of angular errors caused by the cover plate closing or opening, thus eliminating the need for an expensive electric drive device and reducing costs.

[0101] Example 3

[0102] like Figure 10 The diagram shows another embodiment of the present invention. A structural schematic diagram of an automobile hatch mechanism includes: a hatch body 1 and a hatch cover plate 2. The hatch body 1 is provided with a rotating connector 3 and a driving mechanism 4. The rotating connector 3 is hinged to the hatch body 1. One end of the hatch cover plate 2 is fixedly connected to the rotating connector 3. The driving mechanism includes an electric drive device and a rotating component connected to the electric drive device. The rotating component rotates under the drive of the electric drive device. During the rotation, the rotating component switches between a driving state and a sliding state.

[0103] In the driving state, the rotating component is connected to the rotating connecting component 3, driving the rotating connecting component 3 to rotate;

[0104] In the sliding state, the rotating component is separated from the rotating connecting component 3;

[0105] The first end of the rotating connector 3 is provided with a connector gear 31, the rotating component is a dial 100, the driving mechanism 4 also includes a grooved wheel 102 and a grooved wheel gear 104, the dial 100 is provided with a cylindrical pin 101, the grooved wheel 102 is provided with a grooved wheel guide groove 103 that cooperates with the cylindrical pin 101, the grooved wheel 102 is connected to the grooved wheel gear 104, and the grooved wheel gear 104 meshes with the connector gear 31;

[0106] In the driving state, the cylindrical pin 101 enters the guide groove 103 of the Geneva wheel, and in the sliding state, the cylindrical pin 101 rotates out of the guide groove 103 of the Geneva wheel.

[0107] Specifically, such as Figure 10 and Figure 11 As shown, the actuating disk 100 and the grooved wheel 102 form a grooved wheel structure. The actuating disk 100 has a cam structure, and the cylindrical pin 101 is located at the end of the actuating disk 100 away from the rotation axis.

[0108] The process of electrically closing the cover plate 2 is as follows:

[0109] An electric drive device, such as a drive motor, rotates the actuating disk 100 until the cylindrical pin 101 enters the guide groove 103 of the grooved wheel, thus entering the driving state. Figure 10 As shown, the actuating disk 10 rotates clockwise, driving the grooved wheel 102 to rotate counterclockwise. The grooved wheel gear 104 follows the counterclockwise rotation of the grooved wheel 102. The grooved wheel gear 104 meshes with the connecting gear 31, driving the connecting gear 31 to rotate clockwise. The clockwise rotation of the connecting gear 31 causes the cover plate 2 to rotate towards the cover body 1, thereby closing the refueling / charging port 11 of the cover body 1. After the actuating disk 100 drives the grooved wheel 102 to rotate at a fixed angle, it rotates out of the grooved wheel guide groove 103 and enters a sliding state. The electric drive device drives the actuating disk 100 to rotate freely, stopping after rotating exactly one revolution.

[0110] The process of manually closing the cover plate 2 is as follows:

[0111] The cover plate 2 is manually pushed, causing the grooved wheel 102 to rotate in reverse. During the entire rotation process, the grooved wheel 102 does not cooperate with the actuating disc 100, and the actuating disc 100 is not subjected to any external force. When the cover plate 2 is locked, the grooved wheel 2 stops after rotating through a certain fixed angle.

[0112] In this embodiment, the rotating disc switches between a driving state and a sliding state via a grooved wheel structure. In the driving state, the rotating disc is connected to the rotating connector via the grooved wheel and is driven by an electric drive device to achieve electric drive control of the port cover. In the sliding state, the rotating disc is separated from the rotating connector. Therefore, when the port cover is manually controlled, the rotating connector will not contact the rotating disc, thereby avoiding external force from driving the electric drive device and causing it to malfunction.

[0113] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A car cover mechanism, characterized in that, include: The mouth cover body (1) and mouth cover plate (2) are provided with a rotating connector (3), a driving mechanism (4) and a mouth cover reset mechanism connected to the rotating connector (3). The rotating connector (3) is hinged to the mouth cover body (1). One end of the mouth cover plate (2) is fixedly connected to the rotating connector (3). The driving mechanism includes an electric driving device and a rotating component connected to the electric driving device. The rotating component rotates under the drive of the electric driving device. The rotating component switches between a driving state and a sliding state during the rotation process. The electric driving device is a drive motor. The drive motor rotates in a single direction. In the driving state, the rotating member is connected to the rotating connector (3), driving the rotating connector (3) to rotate and overcome the preload of the cap reset mechanism; In the sliding state, the rotating component is separated from the rotating connecting component (3); The cover body (1) is provided with a locking mechanism (9). The cover plate (2) facing the cover body (1) is provided with a locking post (21). The locking mechanism (9) includes a locking tongue (91), a lock reset mechanism, and an unlocking mechanism. The locking tongue (91) is kept in an extended state under the drive of the lock reset mechanism and retracted under the control of the unlocking mechanism. When the locking tongue (91) is extended, it can engage with the locking post (21). In the driving state, the rotating member drives the rotating connector (3) to rotate in the first rotation direction. When the latch (91) extends, the rotation of the rotating connector (3) in the first rotation direction drives the cover plate (2) to rotate in the direction of the cover body (1) until the locking pin (21) engages with the latch (91).

2. The automotive flap mechanism of claim 1, wherein, The cap reset mechanism is a torsion spring (7), one end of which is connected to the second end of the rotating connector (3), and the other end is fixed on the cap body (1).

3. The automotive flap mechanism of claim 2, wherein, The cover body (1) is provided with two reset limiting blocks (8) with a certain gap, and the other end of the torsion spring (7) is provided between the two reset limiting blocks (8).

4. The automotive flap mechanism of claim 1, wherein, The first end of the rotating connector (3) is provided with a connector gear (31). The rotating component is a non-full-tooth gear (5). The non-full-tooth gear (5) includes a toothed part (51) and a toothless part (52). In the driving state, the toothed part (51) meshes with the connector gear (31). In the sliding state, the toothed part (51) separates from the connector gear (31).

5. The automotive flap mechanism of claim 4, wherein, The drive mechanism (4) further includes a driven gear (6), which meshes with the connecting gear (31). In the driving state, the toothed portion (51) meshes with the driven gear (6), and in the sliding state, the toothed portion (51) separates from the driven gear (6).

6. The automobile cover mechanism according to claim 1, characterized in that: The stroke of the cover plate (2) rotating in the first rotation direction is greater than the stroke of the cover plate (2) from the full stroke position to the locked position, and the locked position is the position where the locking pin (21) is engaged by the locking tongue (91); The stroke of the cover plate (2) rotating in the first rotation direction is less than the maximum stroke that the cover plate (2) can move from the full stroke position to the locking pin (21), where the full stroke position is the position where the cover plate (2) is fully open.

7. The automotive flap mechanism of claim 6, wherein, It also includes a full-stroke position sensor for detecting the full-stroke position, and after the full-stroke position sensor outputs a position signal, the electric drive device is allowed to drive the rotating part to rotate.

8. The automotive flap mechanism of claim 7, wherein, It also includes a locking position sensor for detecting the locking position, and after the locking position sensor outputs a positioning signal for a preset time, the electric drive device stops driving the rotating part to rotate.

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