Electric tailgate lock and motor vehicle

Abstract

The present disclosure provides an electric tailgate lock, comprising: a lock body, a lock bolt; a pawl rotatably arranged in the lock body, wherein the pawl is capable of holding the lock bolt in a fully locked position when the pawl is in a first position; capable of holding the lock bolt in a half locked position when the pawl is in a second position; and capable of completely releasing the lock bolt when the pawl is in a third position; a snow load device having an active position and an inactive position, wherein the snow load device is used to hold the pawl in a position of completely releasing the lock bolt when the snow load device is in the active position; and allows the pawl to rotate in a direction close to the first position when the snow load device is in the inactive position; and a driving device for driving the pawl to rotate in a direction close to the third position, and for driving the snow load device to move from the inactive position to the active position. The present disclosure also provides an automobile.

Description

Technical Field

[0001] The present disclosure relates to a locking device for a vehicle, and in particular to an electric tailgate lock and a motor vehicle. Background Art

[0002] After the tailgate is unlocked, the elastic force of the sealing strip is generally used to overcome the gravity of the door and the resistance of the mechanism, so that the tailgate remains unlocked. However, in order to ensure that the resistance is not too great when closing the door, the elastic force of the sealing strip cannot be too large. Therefore, when a lot of snow accumulates on the tailgate of the car on a snowy day, the elastic force of the sealing strip cannot keep the door in the open state, and the tailgate cannot be opened.

[0003] Existing car tailgate locks with snow-loading functions address the aforementioned technical issues. However, these tailgate locks typically include a snow-loading lever, a driving device capable of activating the lever, and a reset device. This complicates the structure of the tailgate lock and is prone to various malfunctions. Summary of the Invention

[0004] In order to solve one of the above technical problems, the present disclosure provides an electric tailgate lock and a motor vehicle.

[0005] According to one aspect of the present disclosure, there is provided an electric tailgate lock, comprising:

[0006] Lock body,

[0007] a lock tongue, the lock tongue being rotatably disposed on the lock body, and the lock tongue having a fully locked position, a half-locked position, and an open position during rotation relative to the lock body;

[0008] a pawl rotatably disposed on the lock body, and having a first position, a second position, and a third position when the pawl rotates relative to the lock body, wherein when the pawl is in the first position, the lock tongue is maintained in a fully locked position; when the pawl is in the second position, the lock tongue is maintained in a semi-locked position; and when the pawl is in the third position, the lock tongue is fully released;

[0009] a snow carrier having an operative position and an inoperative position, wherein when the snow carrier is in the operative position, the snow carrier is configured to maintain the pawl in a position in which the locking tongue is fully released; and when the snow carrier is in the inoperative position, the pawl is allowed to rotate toward a direction approaching the first position;

[0010] A driving device is used to drive the pawl to rotate in a direction close to the third position, and to drive the snow carrying device to move from the non-working position to the working position.

[0011] According to the electric tailgate lock of at least one embodiment of the present disclosure, the driving device includes a motor and a worm gear transmission-connected to the motor, the worm gear can simultaneously drive the pawl and the snow-loading device, and cause the pawl to rotate in a direction close to the third position, and is used to drive the snow-loading device to move from the non-working position to the working position.

[0012] According to the electric tailgate lock of at least one embodiment of the present disclosure, at least one first pusher is provided on the worm gear, and the first pusher is used to push the pawl to rotate in a direction close to the third position.

[0013] According to the electric tailgate lock of at least one embodiment of the present disclosure, a groove is provided on the pawl, and the first pusher contacts the side wall of the groove of the pawl. When the worm gear rotates, the first pusher contacts the side wall of the groove and pushes the pawl to rotate.

[0014] According to the electric tailgate lock of at least one embodiment of the present disclosure, the groove is configured such that when the pawl is located at the third position and the worm gear further rotates, the first pusher escapes from the pawl.

[0015] According to the electric tailgate lock of at least one embodiment of the present disclosure, at least two first pushers are provided, and when one of the first pushers escapes from the groove, the other first pusher is blocked by the pawl.

[0016] According to the electric tailgate lock of at least one embodiment of the present disclosure, the pawl includes a stopper formed on one side of the groove, and when the pawl is in the third position, the stopper is located on a movement path of the first pusher.

[0017] According to the electric tailgate lock of at least one embodiment of the present disclosure, the pawl further includes a position detection structure, and the position detection structure is used to cooperate with the micro switch to obtain the position of the pawl.

[0018] According to the electric tailgate lock of at least one embodiment of the present disclosure, when the pawl is in the first position, the position detection structure does not trigger the micro switch; when the pawl is in the third position, the position detection structure triggers the micro switch.

[0019] According to the electric tailgate lock of at least one embodiment of the present disclosure, at least one second pusher is provided on the worm gear, and the second pusher is used to push the snow loading device to rotate so that the snow loading device can be rotated from the non-working position to the working position.

[0020] According to the electric tailgate lock of at least one embodiment of the present disclosure, the snow loading device includes a driving rod component, and the second pushing member pushes the driving rod component to push the snow loading device from the non-operating position to the operating position.

[0021] According to the electric tailgate lock of at least one embodiment of the present disclosure, when the snow loading device is in the working position and the worm gear continues to rotate, the second pusher can go over the driving rod component.

[0022] According to the electric tailgate lock of at least one embodiment of the present disclosure, the number of the second pushers is the same as the number of the first pushers, and the first pushers and the second pushers are respectively located on both sides of the worm gear in the axial direction.

[0023] According to the electric tailgate lock of at least one embodiment of the present disclosure, the first pusher and the second pusher both extend along the axial direction of the worm gear, and are located on the same straight line parallel to the axial direction.

[0024] According to at least one embodiment of the present disclosure, the electric tailgate lock further includes a first torsion spring configured to rotate the lock tongue toward an open position.

[0025] According to at least one embodiment of the present disclosure, the electric tailgate lock further includes a second torsion spring configured to move the pawl toward the first position.

[0026] According to at least one embodiment of the present disclosure, the electric tailgate lock further includes a third torsion spring configured to maintain the snow loading device in a non-operating position or an operating position.

[0027] According to the electric tailgate lock of at least one embodiment of the present disclosure, the torsion spring is disposed away from the rotation center of the snow loading device.

[0028] According to the electric tailgate lock of at least one embodiment of the present disclosure, the snow loading device further includes a reset lever component, and when the lock tongue moves toward the fully locked position, the reset lever component is driven to operate and the snow loading device leaves the working position.

[0029] According to another aspect of the present disclosure, a motor vehicle is provided, which includes the above-mentioned electric tailgate lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings illustrate exemplary embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0031] Figure 1 2 is a schematic diagram of an electric tailgate lock in use according to an embodiment of the present disclosure.

[0032] Figure 2 2 is a schematic structural diagram of an electric tailgate lock according to an embodiment of the present disclosure.

[0033] Figure 3 and Figure 4 Schematic diagram of the internal structure of an electric tailgate lock according to one embodiment of the present disclosure.

[0034] Figure 5 and Figure 6 Schematic diagram of the position of a snow carrier according to one embodiment of the present disclosure.

[0035] Figure 7 Schematic diagram of the structure of a worm gear according to one embodiment of the present disclosure.

[0036] Figure 8 2 is a schematic structural diagram of a worm gear according to an embodiment of the present disclosure from another angle.

[0037] Figure 9 2 is a schematic structural diagram of a pawl according to an embodiment of the present disclosure.

[0038] Figure 10 1 is a schematic structural diagram of a snow carrying device according to one embodiment of the present disclosure.

[0039] The specific reference numerals in the figure are:

[0040] 100 lock body

[0041] 101 unlock hole

[0042] 200 Lock tongue

[0043] 201 first stop notch

[0044] 202 second stop recess

[0045] 203 boss

[0046] 300 Pawl

[0047] 301 stop protrusion

[0048] 302 Dial Hole

[0049] 303 Unlocking Department

[0050] 304 stopper

[0051] 305 Position Detection Structure

[0052] 306 stop block

[0053] 400 Snow Carrier

[0054] 401 Rotating Unit

[0055] 402 drive rod assembly

[0056] 403 reset rod assembly

[0057] 404 Reset force providing unit

[0058] 405 third torsion spring

[0059] 500 drive unit

[0060] 501 Motor

[0061] 502 worm

[0062] 503 worm gear

[0063] 504 first pusher

[0064] 505 second pusher

[0065] 600 micro switch

[0066] 700 cushioning pad. DETAILED DESCRIPTION

[0067] The present disclosure will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the relevant content and are not intended to limit the present disclosure. It should also be noted that, for ease of description, only the portions relevant to the present disclosure are shown in the accompanying drawings.

[0068] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in the present disclosure can be combined with each other. The technical solution of the present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0069] Unless otherwise stated, the exemplary embodiments / examples shown are to be understood as providing exemplary features of various details of some ways in which the technical concepts of the present disclosure can be implemented in practice. Therefore, unless otherwise stated, the features of the various embodiments / examples may be further combined, separated, interchanged, and / or rearranged without departing from the technical concepts of the present disclosure.

[0070] The use of cross hatching and / or shading in the accompanying drawings is generally used to make the boundaries between adjacent components clear. As such, unless otherwise indicated, the presence or absence of cross hatching or shading does not convey or indicate any preference or requirement for the specific materials, material properties, dimensions, proportions, commonalities between the components shown, and / or any other characteristics, attributes, properties, etc. of the components. In addition, in the accompanying drawings, the sizes and relative sizes of the components may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments can be implemented differently, the specific process sequence can be performed in a different order than described. For example, two successively described processes can be performed substantially simultaneously or in an order opposite to the order described. In addition, the same figure numbers represent the same components.

[0071] When a component is referred to as being “on,” “over,” “connected to,” or “coupled to” another component, the component may be directly on, directly connected to, or directly coupled to the other component, or intervening components may be present. However, when a component is referred to as being “directly on,” “directly connected to,” or “directly coupled to” another component, there are no intervening components present. For this purpose, the term “connected” may refer to a physical connection, an electrical connection, etc., with or without intervening components.

[0072] For descriptive purposes, the present disclosure may use spatially relative terms such as "below," "beneath," "under," "down," "above," "upper," "above," "higher," and "side (e.g., as in "sidewall")," to describe the relationship of one component to another (other) component as shown in the accompanying drawings. The spatially relative terms are intended to encompass different orientations of the device in use, operation, and / or manufacture in addition to the orientation depicted in the accompanying drawings. For example, if the device in the drawings is turned over, a component described as "below" or "beneath" another component or feature would then be positioned "above" the other component or feature. Thus, the exemplary term "below" can encompass both the "above" and "below" orientations. Furthermore, the device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations), and as such, the spatially relative descriptors used herein should be interpreted accordingly.

[0073] The terms used herein are for the purpose of describing specific embodiments and are not intended to be restrictive. As used herein, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, the features, integral bodies, steps, operations, parts, assemblies and / or their groups stated are explained, but the presence or addition of one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups is not excluded. It should also be noted that, as used herein, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values ​​and / or the values ​​provided that will be recognized by those of ordinary skill in the art.

[0074] Figure 1 2 is a schematic diagram of an electric tailgate lock in use according to an embodiment of the present disclosure. Figure 2 2 is a schematic structural diagram of an electric tailgate lock according to an embodiment of the present disclosure.

[0075] like Figure 1 and Figure 2 As shown, the electric tailgate lock of the present disclosure may include components such as a lock body 100 , a lock tongue 200 , a pawl 300 , a snow loading device 400 , and a driving device 500 .

[0076] When the electric tailgate lock of the present disclosure is used, it can be fixed to either the vehicle body or the tailgate. Accordingly, the striker is fixed to the other of the vehicle body and the tailgate. The electric tailgate lock locks the striker, thereby locking the tailgate. Preferably, the lock body 100, lock tongue 200, pawl 300, snow loading device 400, and drive device 500 of the present disclosure are arranged on a substantially flat surface, thereby saving layout space and facilitating the adaptability of the electric tailgate lock of the present disclosure to different vehicle models.

[0077] Specifically, the lock body 100 has an opening into which at least a portion of the striker can enter. When the lock tongue 200 engages the striker, the striker is locked and retained between the lock tongue 200 and the lock body 100, and the lock tongue is in a fully locked position. On the other hand, when the lock tongue 200 is in an open position, the striker is allowed to exit the opening of the lock body, thereby allowing the tailgate of the vehicle to be opened by an external force.

[0078] The lock tongue 200 is rotatably arranged on the lock body 100, and the lock tongue 200 has a fully locked position, a half-locked position and an open position during rotation relative to the lock body 100; more specifically, the lock tongue 200 can be rotatably arranged on the lock body 100 through a first hinge shaft, and the electric tailgate lock can further include a first torsion spring, which can be sleeved on the first hinge shaft, and one end of the first torsion spring is mounted on the lock tongue 200, and the other end is mounted on the lock body 100, thereby the first torsion spring can apply a force to the lock tongue 200 and make the lock tongue 200 have a tendency to rotate toward the open position. In other words, the first torsion spring is used to make the lock tongue 200 rotate toward the open position.

[0079] That is, during the closing process of the electric tailgate lock of the present disclosure, the striker enters the opening of the lock body 100, pushing the lock tongue 200 to rotate, causing the lock tongue 200 to rotate from the open position to the semi-locked position. Furthermore, when the striker further pushes the lock tongue 200 to rotate, it can further rotate the lock tongue 200 from the semi-locked position to the fully locked position, at which time the action of the pawl 300 described below is coordinated to achieve locking. In other words, during the closing process of the electric tailgate lock of the present disclosure, the striker provides power.

[0080] The pawl 300 is rotatably mounted on the lock body 100, and when the pawl 300 rotates relative to the lock body 100, it has a first position, a second position, and a third position. In a specific embodiment, the pawl 300 can be rotatably mounted on the lock body 100 via a second hinge shaft, and the electric tailgate lock can further include a second torsion spring. The second torsion spring can be sleeved on the second hinge shaft, with one end of the second torsion spring positioned against the pawl 300 and the other end positioned against the lock body 100. As a result, the second torsion spring can apply a force to the pawl, causing the pawl 300 to have a tendency to rotate toward the first position. In other words, the second torsion spring is used to cause the pawl 300 to rotate toward the first position.

[0081] Figure 3 and Figure 4 Schematic diagram of the internal structure of an electric tailgate lock according to one embodiment of the present disclosure.

[0082] like Figure 3As shown, the pawl 300 of the electric tailgate lock is now in the first position. In this position, the pawl 300 can maintain the lock tongue 200 in the fully locked position. In other words, the pawl 300 has a stop protrusion 301 on the side close to the lock tongue 200, and the lock tongue 200 has a first stop recess 201 on the side close to the pawl 300. The stop protrusion 301 cooperates with the first stop recess 201 to limit the clockwise rotation of the lock tongue 200, thereby maintaining the lock tongue 200 in the fully locked position.

[0083] like Figure 4 As shown, the pawl 300 of the electric tailgate lock is now in the second position (the lock tongue has not yet been actuated). In this position, the pawl 300 is able to maintain the lock tongue in the semi-locked position. Specifically, the pawl 300 is actuated and moves from the first position to the second position. The stop protrusion 301 of the pawl 300 disengages from the first stop recess 201, and the lock tongue 200, under the action of the first torsion spring, moves clockwise through a predetermined angle. At this point, because the lock tongue 200 is also provided with a second stop recess 202 on the side closest to the pawl 300, the stop protrusion 301 can engage with the second stop recess 202, thereby limiting further clockwise rotation of the lock tongue 200 and maintaining the lock tongue 200 in the semi-locked position.

[0084] Furthermore, when the pawl 300 is further driven to rotate and moves from the second position to the third position, the stop protrusion 301 of the pawl 300 can leave the second stop recess 202, and the lock tongue 200 produces further clockwise movement under the action of the first torsion spring and rotates a preset angle, and finally the lock tongue 200 stays in the open position, that is, when the pawl 300 is in the third position, the lock tongue 200 can be completely released; at this time, the lock tongue 200 will no longer be controlled by the pawl 300.

[0085] Figure 5 and Figure 6 Schematic diagram of the position of a snow carrier according to one embodiment of the present disclosure.

[0086] In the present disclosure, the snow carrying device 400 has a working position and a non-working position. Figure 5 As shown, the snow carrier 400 is in the non-operating position. At this time, the snow carrier 400 is away from the pawl 300 and does not affect the rotation of the pawl 300. In other words, when the snow carrier 400 is in the non-operating position, the pawl 300 is allowed to rotate toward the first position.

[0087] On the other hand, Figure 6As shown in FIG, the snow carrier 400 is in the working position. At this time, the snow carrier 400 can contact the pawl 300, thereby maintaining the pawl 300 in the position of fully releasing the locking tongue 200, that is, maintaining the pawl 300 in the third position and not allowing the pawl 300 to rotate toward the first position.

[0088] The driving device 500 is used to drive the pawl 300 to rotate toward the third position, and to drive the snow carrying device 400 to move from the non-working position to the working position.

[0089] That is to say, the present disclosure realizes driving of the snow loading device 400 and the pawl 300 through a driving device 500 , simplifies the structure of the electric tailgate lock while having the same functions, and improves the reliability of the electric tailgate lock.

[0090] On the other hand, an unlocking hole 101 is provided on the lock body 100, and a shifting hole 302 is provided at a position of the pawl 300 corresponding to the unlocking hole 101. In actual use, a tool can be passed through the unlocking hole 101 and inserted into the shifting hole 302. Since the unlocking hole 101 is formed in an arc shape as a whole and has a certain length, the pawl 300 can be shifted from the first position to the third position to realize manual unlocking of the electric tailgate lock.

[0091] Therefore, when the electric tailgate lock disclosed herein is in use, its snow-loading function is activated only when it is electrically unlocked, that is, the snow-loading device 400 can be driven and located in the working position when it is electrically unlocked; during manual interpretation and door closing, the snow-loading device 400 will not move and start, thereby making the lock function more reliable.

[0092] In this disclosure, Figure 5 As shown, the driving device 500 includes a motor 501, which can be a DC motor, preferably a brushless DC motor, and provides the energy for unlocking the electric tailgate lock. A worm 502 is provided on the output shaft of the motor 501, and the worm 502 is in driving connection with a worm gear 503. In this case, the worm gear 503 is rotatably mounted on the lock body 100, so that when the motor 501 rotates, the worm gear 503 can rotate.

[0093] In a preferred embodiment, the lock body 100 includes an upper space, and the motor 501 is disposed in the upper space. The motor 501 is disposed horizontally, and the worm gear 503 is located below the plane of the motor 501. More preferably, the upper space can be formed as a sealed space, and a circuit board and other devices for driving the motor 501 can be disposed in the upper space. As a result, the electric tailgate lock of the present disclosure has better waterproof performance.

[0094] In the present disclosure, the worm gear 503 can simultaneously drive the pawl 300 and the snow carrying device 400 and cause the pawl 300 to rotate toward the third position, and is used to drive the snow carrying device 400 to move from the non-working position to the working position.

[0095] Figure 7 Schematic diagram of the structure of a worm gear according to one embodiment of the present disclosure. Figure 8 2 is a schematic structural diagram of a worm gear according to an embodiment of the present disclosure from another angle.

[0096] like Figure 7 and Figure 8 As shown, the worm wheel 503 includes an axial direction, which is the rotation axis of the worm wheel 503. The worm wheel 503 is provided with at least one first pusher 504 and at least one second pusher 505.

[0097] The first pusher 504 is used to push the pawl 300 to rotate toward the third position. Figure 3 In the direction shown, the first pushing member 504 can push the pawl 300 to rotate clockwise.

[0098] Figure 9 2 is a schematic structural diagram of a pawl according to an embodiment of the present disclosure.

[0099] like Figure 9 As shown, the pawl 300 includes an unlocking portion 303, a stopper 304, and a position detection structure 305. These components form a groove on the pawl 300. Specifically, the stopper 304 and the position detection structure 305 are located on one side of the groove and form at least a portion of the groove's sidewalls, while the unlocking portion 303 is located on the other side of the groove and forms at least a portion of the groove's sidewalls.

[0100] The first pusher 504 contacts the sidewalls of the groove of the pawl 300. When the worm gear 503 rotates, the first pusher 504 contacts the sidewalls of the groove and pushes the pawl 300 to rotate. More specifically, the first pusher 504 contacts the sidewalls of the groove formed by the unlocking portion 303, enabling the first pusher 504 to push the unlocking portion 303 and rotate the pawl 300.

[0101] In a preferred embodiment, the first pusher 504 extends along the axial direction of the worm gear 503, and the first pusher 504 has a corner. When the first pusher 504 contacts the side wall of the groove, the corner of the first pusher 504 contacts the side wall of the groove, thereby causing a smaller sliding friction force between the first pusher 504 and the unlocking portion 303.

[0102] In the present disclosure, the groove is configured such that when the pawl 300 is in the third position and the worm gear 503 rotates further, the first pusher 504 disengages from the pawl 300. Therefore, when the electric tailgate lock of the present disclosure is in use, the motor 501 does not need to be rotated in the reverse direction and reset, but can be directly rotated in the forward direction to achieve the next unlocking action.

[0103] At least two first pushers 504 are provided. When one of the first pushers 504 is released from the groove, the other first pusher 504 is blocked by the pawl 300. In a specific embodiment, two first pushers 504 are provided, and the two first pushers 504 are centrally symmetrically arranged along the axial direction of the worm gear 503. As a result, the electric tailgate lock of the present disclosure does not need to detect the position of the motor. It only requires a safety clutch (also known as a torque limiter or safety coupling) on ​​the motor 501, which is connected to the worm 502 via the safety clutch. In this case, when the first pusher 504 of the worm gear 503 is stopped by the stopper 304 of the pawl 300, the safety clutch disengages. Even if the motor 501 is controlled to rotate, the worm gear 503 will not rotate further or be damaged. Therefore, the electric tailgate lock of the present disclosure is relatively easy to control.

[0104] Furthermore, when the other first pusher 504 is blocked by the pawl 300, the motor 501 is stalled and the motor 501 can be powered off. Due to the clearance in the worm gear assembly, the other first pusher 504 will move slightly in the opposite direction. At this point, the other first pusher 504 will no longer be in close contact with the pawl, and thus will not affect the movement of the pawl 300 to the first position.

[0105] In another control method, when the electric tailgate lock is unlocking, the motor can be energized for a preset time. During this preset time, the pawl 300 is pushed to the third position, and one first pusher 504 is released from the recess, while the other first pusher 504 is blocked by the pawl. After the preset time, the motor 501 is powered off. Due to the clearance in the worm gear assembly, the other first pusher 504 moves slightly in the opposite direction. At this point, the other first pusher 504 no longer abuts the pawl, and thus does not affect the movement of the pawl 300 to the first position.

[0106] More specifically, when the pawl 300 is in the third position, the stopper 304 is located on the movement path of the first pusher 504 , thereby limiting the rotation of the worm gear 503 through the stopper 304 .

[0107] In the present disclosure, the position detection structure 305 is used to cooperate with the micro switch 600 to obtain the position of the pawl 300. More specifically, when the pawl 300 is in the first position, the position detection structure 305 does not trigger the micro switch 600, thereby allowing the control system to know that the electric tailgate lock is in the fully locked state or the partially locked state. When the pawl 300 is in the third position, the position detection structure 305 triggers the micro switch 600, thereby allowing the control system to know that the electric tailgate lock is in the open state.

[0108] The second pushing member 505 is used to push the snow-carrying device 400 to rotate, so that the snow-carrying device 400 can be rotated from the non-working position to the working position.

[0109] Figure 10 1 is a schematic structural diagram of a snow carrying device according to one embodiment of the present disclosure.

[0110] like Figure 10 As shown, the snow carrying device 400 includes a rotating part 401, a driving rod component 402, a reset rod component 403 and a reset force providing part 404.

[0111] The rotating portion 401 is rotatably disposed on the lock body 100, and enables the snow carrier 400 to rotate relative to the lock body 100. In the present disclosure, one end of the driving rod component 402 is connected to the rotating portion 401, and the length of the driving rod component 402 is perpendicular or substantially perpendicular to the rotation axis of the rotating portion 401. Therefore, when the second pushing member 505 pushes the driving rod component 402 to operate, it has a large lever arm and can easily push the snow carrier 400 to rotate, and further enable the snow carrier 400 to move from the non-operating position to the operating position.

[0112] More preferably, the pawl 300 has a stop block 306, wherein, when the snow carrying device 400 is in the working position, the other end of the driving rod component 402 can contact the stop block 306 and abut against the stop block 306 to prevent the pawl 300 from moving from the third position to the first position.

[0113] In the present disclosure, when the snow carrying device 400 is in the working position and the worm wheel 503 continues to rotate, the second pusher 505 can pass over the driving rod component 402. Therefore, the worm wheel 503 of the present disclosure does not need to rotate in the reverse direction.

[0114] In a preferred embodiment, the number of the second pushers 505 is the same as the number of the first pushers 504; more specifically, the number of the first pushers 504 and the second pushers 505 is two. Furthermore, the first pushers 504 and the second pushers 505 are located on either side of the worm wheel 503 in the axial direction. Accordingly, the pawl 300 and the snow carrier 400 are also located on either side of the worm wheel 503 in the axial direction. More specifically, the first pusher 504 and the pawl 300 are located on one side of the worm wheel 503, while the second pusher 505 and the snow carrier 400 are located on the other side of the worm wheel 503.

[0115] More specifically, the second pusher 505 extends along the axial direction of the worm gear 503, and the first pusher 504 and the second pusher 505 are located on the same straight line parallel to the axial direction. That is, along the circumference of the worm gear 503, the first pusher 504 and the second pusher 505 are located at the same angle.

[0116] One end of the reset lever 403 is connected to the rotating portion 401, and the other end extends toward the lock tongue 200. As the lock tongue 200 moves toward the fully locked position, the reset lever 403 is actuated, causing the snow loading device 400 to leave the operating position. Furthermore, once the snow loading device 400 leaves the operating position, the pawl 300 can rotate toward the first position, locking the electric tailgate lock.

[0117] In a specific embodiment, a boss 203 is provided on the lock tongue 200. The boss 203 is capable of contacting the reset lever component 403 and pushing the snow-loading device 400 to rotate. In a preferred embodiment, the boss 203 is positioned so that only after the lock tongue 200 passes the semi-locked position will the boss 203 contact the reset lever component 403 and push the snow-loading device 400 from the working position to the non-working position. In other words, when the electric tailgate lock of the present disclosure is in use, the snow-loading device 400 is not released until it is confirmed that the electric tailgate lock is in the locking process, thereby improving the safety of the electric tailgate lock of the present disclosure during use.

[0118] In the present disclosure, one end of the restoring force providing portion 404 is connected to the rotating portion 401 , and the third torsion spring 405 is used to keep the snow carrying device 400 in the non-working position or the working position.

[0119] Specifically, the center of the third torsion spring 405 is arranged away from the rotation center of the snow-carrying device 400, thereby forming the third torsion spring 405 as an eccentric torsion spring. At this time, one end of the third torsion spring 405 is arranged at one end of the reset force providing part 404, and the other end of the third torsion spring 405 is arranged at the lock body, so that the third torsion spring 405 can keep the snow-carrying device 400 in the working position, and can also keep the snow-carrying device 400 in the non-working position.

[0120] In other words, when the snow carrier 400 is in the working position and the non-working position, the winding axis of the third torsion spring 405 changes, that is, the spring coil of the eccentric torsion spring is not fixed, so that the eccentric torsion spring can keep the snow carrier in the working position or the non-working position.

[0121] The electric tailgate lock of the present disclosure may further include a manual unlocking lever, one end of which can be inserted into the dial hole 302 to manually unlock the electric tailgate lock.

[0122] The electric tailgate lock of the present disclosure further includes a buffer pad 700 , which is disposed on the lock body 100 and at least partially located in an opening of the lock body 100 , so that the buffer pad 700 can buffer the striker during the locking process.

[0123] According to another aspect of the present disclosure, a motor vehicle is provided, which includes the above-mentioned electric tailgate lock.

[0124] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments / methods or examples. In addition, those skilled in the art may combine and combine different embodiments / methods or examples described in this specification and the features of different embodiments / methods or examples, unless they are contradictory.

[0125] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0126] Those skilled in the art will appreciate that the above embodiments are merely intended to clearly illustrate the present disclosure and are not intended to limit the scope of the present disclosure. Other changes or modifications may be made based on the above disclosure, and such changes or modifications are still within the scope of the present disclosure.

Claims

1. An electric tailgate lock, characterized in that: include: a lock body having an opening in the lock body, into which at least a portion of the striker can enter; a lock tongue, the lock tongue being rotatably disposed on the lock body, and the lock tongue having a fully locked position, a half-locked position, and an open position during rotation relative to the lock body; a pawl rotatably disposed on the lock body, and having a first position, a second position, and a third position when the pawl rotates relative to the lock body, wherein when the pawl is in the first position, the lock tongue is maintained in a fully locked position; when the pawl is in the second position, the lock tongue is maintained in a semi-locked position; and when the pawl is in the third position, the lock tongue is fully released; a snow carrier having an operative position and an inoperative position, wherein when the snow carrier is in the operative position, the snow carrier is configured to maintain the pawl in a position in which the locking tongue is fully released; and when the snow carrier is in the inoperative position, the pawl is allowed to rotate toward a direction approaching the first position; A driving device is used to drive the pawl to rotate in a direction close to the third position, and to drive the snow carrying device to move from the non-working position to the working position.

2. The electric tailgate lock according to claim 1, characterized in that: The driving device includes a motor and a worm gear connected to the motor. The worm gear can simultaneously drive the pawl and the snow-carrying device, causing the pawl to rotate in a direction close to the third position, and is used to drive the snow-carrying device from the non-working position to the working position.

3. The electric tailgate lock according to claim 2, characterized in that: At least one first pushing member is provided on the worm wheel, and the first pushing member is used to push the pawl to rotate in a direction close to the third position.

4. The electric tailgate lock according to claim 3, characterized in that: The pawl is provided with a groove, and the first pushing member contacts the side wall of the groove of the pawl. When the worm wheel rotates, the first pushing member contacts the side wall of the groove and pushes the pawl to rotate.

5. The electric tailgate lock according to claim 4, characterized in that: The groove is configured such that when the pawl is located at the third position and the worm wheel further rotates, the first pushing member escapes from the pawl.

6. The electric tailgate lock according to claim 5, characterized in that: There are at least two first pushing members, and when one of the first pushing members escapes from the groove, the other first pushing member is blocked by the pawl.

7. The electric tailgate lock according to claim 6, characterized in that: The pawl includes a stopper formed at one side of the groove, and when the pawl is at the third position, the stopper is located on a movement path of the first pusher.

8. The electric tailgate lock according to claim 3, characterized in that: The pawl further includes a position detection structure, which is used to cooperate with the micro switch to obtain the position of the pawl.

9. The electric tailgate lock according to claim 8, characterized in that: When the pawl is located at the first position, the position detection structure does not trigger the micro switch; when the pawl is at the third position, the position detection structure triggers the micro switch.

10. The electric tailgate lock according to claim 3, characterized in that: At least one second pushing member is provided on the worm gear, and the second pushing member is used to push the snow-carrying device to rotate, so that the snow-carrying device can be rotated from the non-working position to the working position.

11. The electric tailgate lock according to claim 10, characterized in that: The snow carrying device includes a driving rod component, and the second pushing member pushes the driving rod component to push the snow carrying device from the non-operating position to the operating position.

12. The electric tailgate lock according to claim 11, characterized in that: When the snow carrying device is in the working position and the worm gear continues to rotate, the second pusher can pass over the drive rod component.

13. The electric tailgate lock according to claim 12, characterized in that: The number of the second pushing members is the same as the number of the first pushing members, and the first pushing members and the second pushing members are respectively located on both sides of the worm gear in the axial direction.

14. The electric tailgate lock according to claim 13, characterized in that: The first pushing member and the second pushing member both extend along the axial direction of the worm gear, and the first pushing member and the second pushing member are located on the same straight line parallel to the axial direction.

15. The electric tailgate lock according to claim 1, characterized in that: Also includes: A first torsion spring is used to rotate the locking tongue toward an open position.

16. The electric tailgate lock according to claim 1, characterized in that: Also includes: A second torsion spring is used to move the pawl toward the first position.

17. The electric tailgate lock according to claim 1, characterized in that: Also includes: A third torsion spring is used to keep the snow carrying device in an inoperative position or an operative position.

18. The electric tailgate lock according to claim 17, characterized in that: The third torsion spring is arranged away from the rotation center of the snow carrying device.

19. The electric tailgate lock according to claim 1, characterized in that: The snow carrying device further comprises a reset lever component, which drives the reset lever component to move when the lock tongue moves toward the fully locked position, and causes the snow carrying device to leave the working position.

20. A motor vehicle, characterized in that: The invention comprises the electric tailgate lock according to any one of claims 1 to 19.

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