Door lock structure and vehicle

Abstract

The application discloses a door lock structure and a vehicle. The door lock structure has a locked state and an unlocked state, and comprises a lock body, a ratchet wheel, a pawl, an abutting piece and a driving piece. The lock body defines a lock hole for accommodating a lock catch. In the locked state, the ratchet wheel is in a first set position capable of limiting the lock catch from exiting the lock hole. In the locked state, the pawl abuts against the ratchet wheel to maintain the ratchet wheel in the first set position. In the locked state, the abutting piece is configured to abut against the lock catch under the driving of the driving piece to reduce the abutting force applied by the lock catch to the ratchet wheel. The door lock structure can reduce the abutting force between the ratchet wheel and the pawl, thereby reducing the impact vibration and noise when the ratchet wheel and the pawl are separated.

Description

Technical Field

[0001] This invention relates to the field of vehicle component technology, and in particular to a door lock structure and a vehicle. Background Technology

[0002] Vehicle door locks and front and rear hood locks often use a ratchet and pawl mechanism. When locking, the latch on the door abuts against the ratchet and drives it to rotate until it reaches a set angle. The pawl then extends and engages with the ratchet, preventing it from returning to its original position and thus keeping the latch in the lock cylinder. When unlocking, external force retracts the extended pawl, removing the ratchet's restraint. The ratchet then returns to its original position under the action of a torsion spring, opening the lock cylinder and allowing the latch to disengage.

[0003] In the prior art, in order to avoid abnormal noises from the doors during vehicle operation, sealing strips with high sealing reaction force are often installed on the doors or door frames. However, when the sealing reaction force is large, the latch applies a large resistance force to the ratchet after locking. As a result, at the moment the ratchet and pawl separate during unlocking, the ratchet and pawl will generate a large impact vibration and produce a lot of noise. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a door lock structure that can reduce the contact force between the ratchet and the pawl, thereby reducing the impact vibration and noise when the ratchet and pawl separate.

[0005] The present invention also proposes another door lock structure.

[0006] The present invention also proposes a vehicle having the above-described door lock structure.

[0007] According to a first aspect of the present invention, a door lock structure has a locked state and an unlocked state, the door lock structure comprising:

[0008] A lock body defines a lock hole for accommodating a latch;

[0009] In the locked state, the ratchet is in a first predetermined position that prevents the latch from exiting the lock hole;

[0010] In the locked state, the pawl abuts against the ratchet to maintain the ratchet in the first set position;

[0011] The door lock structure further includes an abutment and a drive member. In the locked state, the abutment is configured to be driven by the drive member to abut against the latch, thereby reducing the abutment force applied by the latch to the ratchet.

[0012] The door lock structure according to embodiments of the present invention has at least the following beneficial effects:

[0013] To reduce the contact force between the ratchet and the pawl, the door lock structure of this application is provided with an abutment and a driving member. In the locked state, the abutment is driven to abut against the latch. The abutment and the ratchet are stacked along the thickness direction of the ratchet. The latch has a certain length along the thickness direction of the ratchet. The lower end of the latch is abutted by the ratchet, and the upper end is abutted by the abutment. When the latch abuts against the ratchet, under the rebound force of the sealing strip, the latch applies a contact force to the ratchet in the second direction. The abutment abuts against the latch and applies a reverse contact force to the latch in the second direction, thereby offsetting at least part of the contact force applied by the latch to the ratchet, so as to reduce the contact force between the ratchet and the pawl. Because the contact force between the ratchet and the pawl is reduced, on the one hand, when the ratchet and the pawl separate, the impact vibration between them is smaller, reducing the noise when opening the car door and improving the user's riding experience; on the other hand, because the contact force between the ratchet and the pawl is reduced, the fatigue life at the contact point between the ratchet and the pawl is increased, so that the door lock structure has a longer service life.

[0014] According to some embodiments of the present invention, the driving member has a first state and a second state. In the first state, the abutment is configured to be driven by the driving member to rotate in a first direction until it abuts against the latch. In the second state, the abutment is configured to be able to rotate in the opposite direction of the first direction to reset.

[0015] According to some embodiments of the present invention, the door lock structure further includes a first sensor, which is triggered by either the ratchet or the pawl when the ratchet is separated from the pawl. The drive is configured to switch from the first state to the second state when the first sensor is triggered, so that the latch can be disengaged from the lock hole.

[0016] According to some embodiments of the present invention, the door lock structure further includes a second sensor, which is triggered when the abutment member rotates in the opposite direction of the first direction to a second predetermined position;

[0017] The abutment is connected to an elastic member, which drives the abutment to remain in the second set position.

[0018] Alternatively, the driving member can be controlled to keep the abutment member in the second set position.

[0019] According to some embodiments of the present invention, the driving component is a motor, the output shaft of the motor is sleeved with a first gear, the door lock structure further includes a transmission assembly, the transmission assembly includes a first pulley and a transmission component, the first pulley is provided with a second gear that meshes with the first gear, the abutment component includes a second pulley, and the transmission component is wound around the first pulley and the second pulley, so that the motor drives the abutment component to rotate.

[0020] According to some embodiments of the present invention, the latch is configured to retract from the lock hole in a second direction, and the abutment is configured to abut against the latch and apply an abutment force to the latch in the opposite direction of the second direction.

[0021] According to a second aspect of the present invention, a door lock structure has a locked state and an unlocked state, the door lock structure comprising:

[0022] A lock body defines a lock hole for accommodating a latch;

[0023] In the locked state, the ratchet is in a first predetermined position that prevents the latch from exiting the lock hole;

[0024] In the locked state, the pawl abuts against the ratchet to maintain the ratchet in the first set position;

[0025] The door lock structure also includes a drive member connected to the ratchet. In the locked state, in response to the drive of the drive member, the ratchet applies a clamping force to the latch to reduce the abutment force applied by the latch to the ratchet.

[0026] The door lock structure according to embodiments of the present invention has at least the following beneficial effects:

[0027] The drive component is connected to the ratchet, so that in the locked state, the ratchet, driven by the drive component, applies a clamping force to the latch, counteracting the abutment force applied by the latch to the ratchet. This reduces the abutment force between the ratchet and the pawl, thereby reducing vibration and noise when the ratchet and pawl separate. Furthermore, because the drive component is directly connected to the ratchet in this embodiment, while reducing ratchet and pawl unlocking vibration, the number of parts within the door lock structure is reduced, decreasing vehicle assembly difficulty and maintenance costs.

[0028] A vehicle according to a third aspect embodiment of the present invention includes:

[0029] The car body has openings;

[0030] A door, connected to the vehicle body, is used to close the opening. Either the door or the vehicle body is provided with a door lock structure as described in any of the above embodiments, and the other is provided with a latch.

[0031] A controller is communicatively connected to the drive unit, which is configured to drive the abutment to rotate under the control of the controller.

[0032] According to some embodiments of the present invention, in response to the controller receiving an opening command, the drive member is configured to drive the abutment member to rotate to abut against the latch before the ratchet and the pawl separate.

[0033] According to some embodiments of the present invention, when the door lock structure is switched to the locked state, the driving member drives the abutment to rotate to a third predetermined position; wherein, in the third predetermined position, the abutment and the latch are spaced apart.

[0034] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0036] Figure 1 This is a schematic diagram of the door lock structure according to an embodiment of the present invention (ratchet and pawl abutting);

[0037] Figure 2 This is a schematic diagram of the ratchet and pawl engagement according to an embodiment of the present invention;

[0038] Figure 3 This is an exploded view of the door lock structure according to an embodiment of the present invention (the lock body is hidden);

[0039] Figure 4 This is a schematic diagram of the door lock structure according to an embodiment of the present invention (ratchet and pawl are separated);

[0040] Figure 5 This is a schematic diagram of the door lock structure according to an embodiment of the present invention (the latch is disengaged from the lock hole).

[0041] Figure label:

[0042] Lock body 100; keyhole 110; latch 120;

[0043] Ratchet 200; Limiting arm 210; Snap-fit ​​groove 220;

[0044] Pawl 300; Snap-fit ​​protrusion 310;

[0045] Abutment part 400; second pulley 410; lever 420;

[0046] Drive component 500; First gear 510; Second gear 520; First pulley 530; Transmission component 540;

[0047] First sensor 600; Second sensor 650; Detailed Implementation

[0048] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0049] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0050] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0051] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0052] In the description of this invention, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0053] Vehicle door locks and front and rear hood locks often use a ratchet and pawl mechanism. When locking, the latch on the door abuts against the ratchet and drives it to rotate until it reaches a set angle. The pawl then extends and engages with the ratchet, preventing it from returning to its original position and thus keeping the latch in the lock cylinder. When unlocking, external force retracts the extended pawl, removing the ratchet's restraint. The ratchet then returns to its original position under the action of a torsion spring, opening the lock cylinder and allowing the latch to disengage.

[0054] In the prior art, in order to avoid abnormal noises from the doors during vehicle operation, sealing strips with high sealing reaction force are often installed on the doors or door frames. However, when the sealing reaction force is large, the latch applies a large resistance force to the ratchet after locking. As a result, at the moment the ratchet and pawl separate during unlocking, the ratchet and pawl will generate a large impact vibration and produce a lot of noise.

[0055] To address the aforementioned problems, the first aspect of this application proposes a door lock structure, such as... Figures 1 to 3 As shown, the door lock structure includes a lock body 100, a ratchet 200, and a pawl 300. The lock body 100 defines a keyhole 110 for receiving a latch 120. An opening is formed at the edge of the lock body 100. The door lock structure has a locked state and an unlocked state. In the unlocked state, the latch 120 can enter the keyhole 110 through the opening. During its entry into the keyhole 110, the latch 120 pushes the ratchet 200 to rotate, causing the ratchet 200 and the pawl 300 to engage, thereby switching the door lock structure from the unlocked state to the locked state. In the locked state, the ratchet 200 is in a first predetermined position that prevents the latch 120 from exiting the keyhole 110. The projection of the ratchet 200 along its thickness direction and the keyhole 110 define a closed area, and the latch 120 is located within this closed area.

[0056] Specifically, such as Figure 2 As shown, Figure 2 The dashed line indicates the keyhole 110 on the lock body 100. The ratchet 200 has a limiting arm 210. In the unlocked state, the projection area of ​​the limiting arm 210 on the lock body 100 along the thickness direction of the ratchet 200 falls outside the area of ​​the keyhole 110, and does not affect the entry or exit of the latch 120 into or out of the keyhole 110. In the locked state, when the ratchet 200 is in the first set position, the projection area of ​​the limiting arm 210 on the lock body 100 along the thickness direction of the ratchet 200 extends across the projection area of ​​the keyhole 110. The ratchet 200 and the keyhole 110 define a closed area. When the latch 120 is located in this closed area, the displacement of the latch 120 is restricted, and the door cannot be opened.

[0057] The ratchet 200 is also provided with a locking groove 220, and the pawl 300 is provided with a locking protrusion 310. (See reference) Figure 1 , Figure 4 and Figure 5 As shown, it should be noted that Figure 1 , Figure 4 and Figure 5 The diagrams shown illustrate the three processes from door opening to closing. When switching from door opening to closing, please refer to... Figure 5 , Figures 4 to 1 The sequence is as follows: When the door is closed, the latch 120 enters the lock hole 110 through the opening and pushes the ratchet 200 to rotate counterclockwise. At the same time, the pawl 300 slides along the outer circumferential surface of the ratchet 200 until the engaging protrusion 310 of the pawl 300 is embedded in the engaging groove 220 of the ratchet 200. At this time, the displacement of the latch 120 is restricted by the limiting arm 210 and cannot exit the lock hole 110. The engaging protrusion 310 abuts against the cross-section of the engaging groove 220 to restrict the ratchet 200 from resetting to rotate clockwise, thereby keeping the door lock structure in the locked state.

[0058] When the controller receives the door opening command, refer to Figure 2 As shown, the pawl 300 is driven to rotate clockwise, and the contact position between its engaging protrusion 310 and the engaging groove 220 continuously moves upward until the engaging protrusion 310 moves out of the engaging groove 220. At this point, the pawl 300 no longer restricts the ratchet 200. Under the action of the latch 120's abutment force, and / or under the action of the elastic force of the torsion spring connected to the ratchet 200, the ratchet 200 rotates clockwise to reset, thereby releasing the latch 120. It should be explained that the controller can be a controller integrated into the door lock structure, or it can be the vehicle ECU (electronic control unit, also known as the vehicle computer). Passengers can pull the inner or outer door handle to trigger the controller to issue an opening command, and correspondingly, the pawl 300 is driven by the power applied by the passenger. Alternatively, passengers can also press the door opening button to trigger the controller to issue an opening command, and correspondingly, the pawl 300 is connected to a motor or other drive structure to drive the pawl 300 to unlock.

[0059] Based on the foregoing, to reduce the abutment force between the ratchet 200 and the pawl 300, the door lock structure of this application also includes an abutment member 400 and a driving member 500, with the driving member 500 being kinetically connected to the abutment member 400. In the locked state, the abutment member 400, driven by the driving member 500, can rotate to abut against the latch 120, thereby reducing the abutment force applied by the latch 120 to the ratchet 200. Figures 1 to 3As shown, the abutment 400 and ratchet 200 are stacked along the thickness direction of ratchet 200. The latch 120 has a certain length along the thickness direction of ratchet 200. The lower end of the latch 120 is abutted by ratchet 200, and the upper end is abutted by abutment 400. The direction in which the latch 120 exits the lock hole 110 is set as the second direction. When the latch 120 abuts with the ratchet 200, under the rebound force of the sealing strip, the latch 120 applies an abutting force to the ratchet 200 along the second direction. The abutment 400 abuts with the latch 120 and applies an abutting force to the latch 120 in the opposite direction along the second direction, thereby offsetting part of the abutting force applied by the latch 120 to the ratchet 200, so as to reduce the abutting force between ratchet 200 and pawl 300.

[0060] In the unlocked state, to prevent the abutment 400 from interfering with the latch 120's exit from the lock hole 110, both the abutment 400 and the ratchet 200 rotate clockwise to reset, allowing the latch 120 to exit the lock hole 110 in the second direction. Understandably, because the contact force between the ratchet 200 and the pawl 300 is reduced, on the one hand, when the ratchet 200 and pawl 300 separate, the impact vibration between them is smaller, reducing noise when opening the door and improving the user's riding experience; on the other hand, the reduced contact force between the ratchet 200 and the pawl 300 increases the fatigue life at the contact point, thus giving the door lock structure a longer service life.

[0061] The drive component 500 can be an air pump, hydraulic pump, motor, etc. Figure 3 In the illustrated embodiment, the driving component 500 is a motor, and the output shaft of the motor is fitted with a first gear 510. The door lock structure also includes a transmission assembly, through which the motor is connected to the abutment member 400. Specifically, the transmission assembly includes a first pulley 530 and a transmission member 540. The first pulley 530 is rotatably connected to the lock body 100, and a second gear 520 is provided at the lower end of the first pulley 530, which meshes with the first gear 510 for transmission. The abutment member 400 is provided with a second pulley 410 and a lever 420 extending from the second pulley 410. The lever 420 is used to abut against the latch 120 and can also be used to trigger the second sensor 650. The transmission member 540 is wound around the grooves of the first pulley 530 and the second pulley 410, thereby realizing the transmission between the first pulley 530 and the second pulley 410. The transmission member 540 can be a thread, a transmission belt, etc. In other embodiments, the transmission component may also be a gear transmission, worm gear transmission, or other structure, so that the motor drives the contact member 400 to move.

[0062] It should be noted that, regardless of the type of driving component 500 or transmission assembly, the driving component 500 must have a first state and a second state. In the first state, the abutment member 400 is driven by the driving component 500 to rotate in a first direction until it abuts against the latch 120. It should be noted that, in the embodiments of this application, the first direction is counterclockwise. In the second state, the abutment member 400 can rotate in the opposite direction of the first direction (i.e., clockwise) to reset the abutment member 400 and prevent it from interfering with the disengagement of the latch 120. Therefore, the driving component 500 and the transmission assembly must allow the abutment member 400 to have the following states: Figure 1 , Figure 4 and Figure 5 The degrees of freedom shown are the clockwise rotation.

[0063] In this application, since the transmission member 540 and the abutment member 400 are driven by friction, when the abutment member 400 rotates in the opposite direction in the first direction, the abutment member 400 and the transmission member 540 can slip, so that the abutment member 400 can reverse.

[0064] It should be explained that in some embodiments, the abutment 400 is connected to an elastic element, which may be a torsion spring. When the abutment 400 rotates to the first set position, the torsion spring deforms and accumulates elastic potential energy. In the second state, the abutment 400 is reset by the elastic force of the torsion spring. Alternatively, in other embodiments, when the door is opened, the latch 120 moves out of the lock hole 110 and pushes the abutment 400 to rotate clockwise to reset. Alternatively, in other embodiments, the drive member 500 can drive bidirectionally, thereby driving the abutment 400 to rotate clockwise to reset.

[0065] It should be noted that in some embodiments, taking the drive component 500 as a motor, and assuming the motor is unidirectionally driven, the motor can drive the abutment component 400 to rotate counterclockwise until it abuts against the latch 120. When the door is opened, the motor stops working, and the latch 120 pushes the abutment component 400 to rotate clockwise to reset, and drives the motor to reverse. At this time, due to the electromagnetic coupling between the rotor and stator in the motor, a damping effect is generated, suppressing the clockwise rotation speed of the abutment component 400, thereby preventing the door from opening too quickly and causing danger. Similarly, in embodiments where the drive component 500 can be bidirectionally driven, the speed at which the door unlocks can also be controlled by controlling the clockwise rotation speed of the abutment component 400 to reset, thereby improving the door opening feel.

[0066] Furthermore, to ensure that the timing of the drive unit 500 switching from the first state to the second state matches the door opening timing, so that the contact force between the ratchet 200 and the pawl 300 is small before they separate, and the abutment member 400 does not affect the disengagement of the latch 120 after they separate, the door lock structure also includes a first sensor. The first sensor can be configured to correspond to the ratchet 200, so that it is triggered precisely when the ratchet 200 rotates to the position where it separates from the pawl 300; alternatively, the first sensor can also be configured to correspond to the pawl 300, so that it is triggered precisely when the pawl 300 rotates to the position where it separates from the ratchet 200. When the first sensor is triggered, the controller controls the drive unit 500 to switch from the first state to the second state, allowing the latch 120 to disengage from the lock hole 110. It should be explained that the controller can be a controller built into the door lock structure, or it can be the vehicle ECU (electronic control unit, also known as the vehicle computer). The controller is connected to the first sensor and the drive unit 500 to receive feedback information from the first sensor and control the operation of the drive unit 500.

[0067] In some embodiments, such as Figure 4 As shown, the door lock structure also includes a second sensor 650, which is positioned corresponding to the abutment 400. The second sensor 650 is triggered when the abutment 400 is reversed to a second predetermined position. It should be noted that the second predetermined position is determined based on the positional relationship between the abutment 400 and the lock hole 110. When the abutment 400 moves to the second predetermined position, it should not affect the latch 120's movement in and out of the lock hole 110.

[0068] In such Figure 4 In the illustrated embodiment, the second sensor 650 is disposed on the side wall of the lock body 100. When the abutment member 400 abuts against the second sensor 650, the second sensor 650 is triggered, thereby informing the controller that the abutment member 400 has moved into position. The controller then controls the drive member 500 to keep the abutment member 400 in the second set position to prevent the abutment member 400 from affecting the latch 120's entry and exit from the lock hole 110, thus preventing the door from being unable to open or close. In other embodiments, the abutment member 400 is connected to an elastic member, which can keep the abutment member 400 in the second set position. If the second sensor 650 is not triggered after the door is opened, it indicates a malfunction in the motion control of the abutment member 400. The controller needs to report an error to remind the driver to have it checked in time to avoid situations where the door cannot be opened or closed.

[0069] It is understandable that the first sensor and the second sensor 650 can be touch sensors, photoelectric sensors, infrared sensors, etc., and the types of the first sensor and the second sensor 650 can be the same or different.

[0070] The second aspect of this application proposes another door lock structure (not shown in the figures), which also includes a lock body 100, a ratchet 200, and a pawl 300. The lock body 100 defines a keyhole 110 for accommodating a latch 120. In the locked state, the projection of the ratchet 200 along its thickness direction and the keyhole 110 define a closed area, with the latch 120 located within the closed area. The pawl 300 abuts against the ratchet 200 to restrict the ratchet 200 from resetting. It should be noted that, unlike the above embodiment, in this embodiment, a drive member 500 is connected to the ratchet 200, so that in the locked state, the ratchet 200, driven by the drive member 500, applies a clamping force to the latch 120 to counteract the abutting force applied by the latch 120 to the ratchet 200, thereby reducing the abutting force between the ratchet 200 and the pawl 300.

[0071] It is understandable that in this embodiment, the drive component 500 is directly connected to the ratchet 200, which reduces the vibration of the ratchet 200 and pawl 300 during unlocking, while also reducing the number of parts in the door lock structure, thus reducing the assembly difficulty and maintenance cost of the vehicle.

[0072] A third aspect of this application provides a vehicle comprising a body and doors. The body has an opening for passengers or goods to enter or exit. The doors are rotatably or slidably connected to the body to close the opening, thereby creating a relatively sealed interior. Either the door or the body is equipped with a door lock structure as described in the first aspect embodiment, and the other is equipped with a latch 120, enabling locking and unlocking of the door and the body. Furthermore, in this application, the vehicle has a controller communicatively connected to a drive unit 500. The drive unit 500 is controlled by the controller and switches between a first state and a second state to drive an abutment member 400 to rotate in a first direction or allow the abutment member 400 to rotate in the opposite direction of the first direction.

[0073] It should be noted that the vehicle can be a private car, such as a sedan, SUV, MPV, or pickup truck. The vehicle can also be a commercial vehicle, such as a van, bus, small truck, or large semi-trailer. The vehicle can be a gasoline-powered vehicle or a new energy vehicle. When the vehicle is a new energy vehicle, it can be a hybrid vehicle or a pure electric vehicle.

[0074] Before the ratchet 200 and pawl 300 separate, the abutment 400 must move to a position abutting against the latch 120 to reduce the impact vibration of the ratchet 200 and pawl 300. Therefore, in some embodiments, when the controller receives an opening command, it controls the drive unit 500 to operate rapidly, thereby causing the abutment 400 to quickly rotate from the second preset position to the position abutting against the latch 120 before the ratchet 200 and pawl 300 separate. In other embodiments, after the door lock structure switches to the locked state, the drive unit 500 drives the abutment 400 to rotate from the second preset position to the third preset position after a set time. It should be noted that the third preset position is closer to the latch 120 than the second preset position, thus resulting in a shorter rotational stroke and faster response speed when the controller receives an opening command. When the abutment 400 is in the third preset position, the abutment 400 can be spaced apart from the latch 120, or it can be in direct contact with the latch 120, with zero abutment force between the latch 120 and the abutment 400. Thus, the abutment 400 waits for an opening command in the third preset position. Upon receiving the opening command, the abutment 400 responds quickly and provides backward pressure to the latch 120 to reduce vibration when the ratchet 200 and pawl 300 separate.

[0075] When the abutment 400 is in the third set position, the drive 500 can be in a state of continuous operation or in a state of paused operation, and the abutment 400 can be maintained in the third set position by a mechanical structure with a stop function.

[0076] In some embodiments, due to considerations such as the load of the drive member 500 and the power consumption of the drive member 500, the pressure provided by the abutment member 400 to the latch 120 is less than the abutting force applied by the latch 120 to the ratchet 200. Therefore, the abutment member 400 cannot completely offset the abutting force applied by the latch 120 to the ratchet 200, but it can still control the vibration and noise within a reasonable range.

[0077] In some embodiments, when the abutment 400 abuts against the latch 120, the abutment force between the ratchet 200 and the latch 120 is zero. Therefore, only the elastic force of the return spring acts between the ratchet 200 and the pawl 300, without the abutment force of the latch 120. The abutment 400 bears the entire abutment force of the latch 120, thereby minimizing the vibration and noise caused by the separation of the ratchet 200 and the pawl 300. In some further embodiments, the ratchet 200 and pawl 300 work together to achieve mechanical locking, providing a fast locking response speed and ensuring a secure and reliable door stop when closing. Then, the abutment 400 abuts against the latch 120 to replace the ratchet 200 for stopping, effectively replacing the mechanical stop with an electronic stop. This reduces door opening noise while providing dual stopping protection. When the electronic stop fails, the mechanical stop remains in operation to keep the door closed.

[0078] In some embodiments, the abutment 400 and the ratchet 200 are coaxially arranged. It is understood that the coaxial arrangement of the abutment 400 and the ratchet 200 allows them to share the same pivot, eliminating the need for separate pivots for the abutment 400 and the ratchet 200 to rotate and connect, thereby improving the space utilization of the door lock structure.

[0079] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. A door lock structure characterized by, The door lock structure has a locking state and an unlocking state, and comprises: a lock body defining a lock hole for accommodating a lock catch; a ratchet wheel in a first set position in the locking state to limit the lock catch from exiting the lock hole; a pawl in abutment with the ratchet wheel in the locking state to maintain the ratchet wheel in the first set position; wherein the door lock structure further comprises an abutment member and a driving member, and in the locking state, the abutment member is configured to be driven by the driving member to abut against the lock catch to reduce the abutment force applied by the lock catch to the ratchet wheel.

2. The door lock structure according to claim 1, characterized by The driving member has a first state and a second state, and in the first state, the abutment member is configured to be driven by the driving member to rotate in a first direction until abutting against the lock catch; in the second state, the abutment member is configured to be able to rotate in a reverse direction of the first direction to reset.

3. The door lock structure according to claim 2, characterized by The door lock structure further comprises a first sensor, and when the ratchet wheel is separated from the pawl, either the ratchet wheel or the pawl triggers the first sensor, and the driving member is configured to switch from the first state to the second state when the first sensor is triggered to enable the lock catch to exit the lock hole.

4. The door lock structure according to claim 2, characterized by The door lock structure further comprises a second sensor, and when the abutment member rotates in the reverse direction of the first direction to a second set position, the second sensor is triggered; wherein the abutment member is connected with a resilient member, and the resilient member drives the abutment member to maintain at the second set position; or, the driving member is controlled to drive the abutment member to maintain at the second set position.

5. The door lock structure according to claim 1, wherein The driving member is a motor, and an output shaft of the motor is sleeved with a first gear, and the door lock structure further comprises a transmission assembly, the transmission assembly comprises a first wire wheel and a transmission member, the first wire wheel is provided with a second gear in meshing transmission with the first gear, the abutment member comprises a second wire wheel, and the transmission member is wound around the first wire wheel and the second wire wheel to enable the motor to drive the abutment member to rotate.

6. The door lock construction according to claim 1, wherein The lock catch is set to exit the lock hole in a second direction, and the abutment member is configured to abut against the lock catch and apply an abutment force to the lock catch in a reverse direction of the second direction.

7. Vehicle, characterized in that comprises: a vehicle body having an opening; a vehicle door connected with the vehicle body to close the opening, and either the vehicle door or the vehicle body is provided with the door lock structure as claimed in any one of claims 1 to 6, and the other is provided with a lock catch; a controller in communication connection with the driving member, and the driving member is configured to be driven by the controller to rotate the abutment member.

8. The vehicle of claim 7, wherein, In response to the controller receiving an opening instruction, the driving member is configured to drive the abutment member to rotate to abut against the lock catch before the ratchet wheel and the pawl are separated.

9. The vehicle of claim 8, wherein, When the door lock structure switches to the locking state, the driving member drives the abutment member to rotate to a third set position; wherein in the third set position, the abutment member is spaced apart from the lock catch.

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