Lock device for motor vehicle and motor vehicle

Abstract

The utility model provides a lock device for a motor vehicle and the motor vehicle. A lock device for a motor vehicle according to the present disclosure comprises: a base plate; the spring bolt is rotatably arranged on the bottom plate through a spring bolt shaft; the pawl is rotatably arranged on the bottom plate through a pawl shaft, and the pawl is matched with the spring bolt to achieve locking or unlocking of the lock device; the upper lock rod and the spring bolt are coaxially arranged, and when the upper lock rod is driven by first driving force, the upper lock rod rotates around the axis of the spring bolt shaft in the first direction and drives the spring bolt to rotate in the first direction, so that the spring bolt rotates from the unlocking position to the locking position; the unlocking rod and the pawl are coaxially arranged, and when the unlocking rod is driven by second driving force, the unlocking rod rotates around the axis of the pawl shaft in the second direction opposite to the first direction and drives the pawl to rotate in the second direction, so that the pawl can be separated from the retaining position, and retaining of the pawl on the spring bolt located at the locking position is relieved; the first driving force and the second driving force are output by the same electric actuator.

Description

Technical Field

[0001] This disclosure relates to the field of door locks or cover locks for motor vehicles, and more particularly to a lock device for motor vehicles and a motor vehicle. Background Technology

[0002] With the development of technologies related to motor vehicles, such as automobiles, there is a growing expectation for better entry and exit space in automobiles.

[0003] Some car models have begun to adopt a design without a B-pillar. When the front and rear doors of the car are opened at the same time, the B-pillar is no longer a barrier between the front and rear doors, which can greatly improve the vehicle's entry and exit space.

[0004] Traditional vehicles have front and rear doors that open forward, locked by latches on the B-pillar and rear doors by latches on the C-pillar. Without the B-pillar, the front door latches must be placed in suitable locations on the vehicle body.

[0005] Figure 1 A common solution is shown. (Reference) Figure 1 The upper front door lock is located on the front door frame, and its corresponding latch is located on the roof crossbeam. The lower front door lock is located on the lower part of the front door, and its corresponding latch is located on the floor crossbeam. The front doors typically open by rotating, while the rear doors can open by sliding. Since the vehicle lacks a B-pillar, a connection is needed between the front and rear doors to improve side-impact performance and prevent the rear door from sliding off during a side collision. Therefore, a central front door lock is required. When both the front and rear doors are locked, the central lock automatically engages, connecting the front and rear doors and enhancing the strength of the front and rear door system.

[0006] Because the central locking system needs to automatically lock after both the front and rear doors are locked, and automatically unlock when either the front or rear door is opened, it must be capable of electric locking and unlocking, and mechanical unlocking in the event of a vehicle power failure. Due to these functional requirements, traditional designs require two actuators to implement the electric locking and unlocking functions separately, and central locking systems often have complex structures, posing a challenge to their reliability. Utility Model Content

[0007] This disclosure redesigns the structure of a locking device for motor vehicles, providing a locking device with a simple structure and good reliability, especially suitable for use as a central locking device in motor vehicles without a B-pillar.

[0008] According to one aspect of this disclosure, a locking device for a motor vehicle is provided, comprising:

[0009] Base plate;

[0010] A locking tongue, which is rotatably mounted on the base plate via a locking tongue shaft;

[0011] A pawl is rotatably mounted on the base plate via a pawl shaft. The pawl cooperates with the bolt to lock or unlock the locking device.

[0012] The upper locking rod is coaxially configured with the lock tongue. When the upper locking rod is driven by a first driving force, the upper locking rod rotates around the axis of the lock tongue shaft in a first direction and drives the lock tongue to rotate in the first direction, so that the lock tongue rotates from the unlocked position to the locked position.

[0013] An unlocking lever is coaxially configured with the pawl. When the unlocking lever is driven by a second driving force, the unlocking lever rotates about the axis of the pawl shaft in a second direction opposite to the first direction and drives the pawl to rotate in the second direction, so that the pawl can disengage from the holding position and release the pawl from holding the latch located in the locked position.

[0014] The first driving force and the second driving force are output by the same electric actuator.

[0015] According to any embodiment of the locking device of this disclosure, the unlocking lever can be driven by a third driving force provided by a mechanical drive lever, such that the unlocking lever rotates in the second direction and drives the pawl to rotate in the second direction to disengage from the holding position.

[0016] According to any embodiment of the locking device of this disclosure, the upper locking rod includes:

[0017] The first end of the upper locking rod has a first through hole for the upper locking rod, and the first through hole for the upper locking rod is sleeved on the locking tongue shaft;

[0018] The second end of the locking rod is used to receive the first driving force. When the second end of the locking rod is driven by the first driving force, the locking rod rotates in a first direction around the axis of the latch shaft and drives the latch to rotate in the first direction around the axis of the latch shaft.

[0019] According to any embodiment of the locking device of this disclosure, the latch is fixedly connected to or rotatably connected to the latch shaft.

[0020] According to any embodiment of the lock device of this disclosure, the latch has a latch cam, the axis of the latch cam is parallel to the axis of the latch shaft and has a preset distance, the latch cam and the upper locking rod are both disposed on the first surface side of the latch, and the upper locking rod drives the latch via the latch cam, so that the latch rotates in the first direction.

[0021] According to any embodiment of the locking device of this disclosure, the first end of the upper locking rod is configured to rotate relative to the locking tongue.

[0022] According to any embodiment of the locking device of the present disclosure, a locking rod driving feature is formed on a first side of the locking rod, and the locking rod drives the bolt convex shaft via the locking rod driving feature;

[0023] The locking lever driving feature is located between the first end and the second end of the locking lever.

[0024] According to any embodiment of the locking device of this disclosure, the upper locking rod driving feature is a concave feature, and the locking tongue convex shaft is a cylinder.

[0025] According to any embodiment of the locking device of this disclosure, the unlocking lever includes:

[0026] The first end of the unlocking lever is coaxially and fixedly connected to the pawl.

[0027] The second end of the unlocking lever is used to receive the second driving force or the third driving force. When the second end of the unlocking lever is driven by the second driving force or the third driving force, the unlocking lever rotates around the axis of the pawl shaft in the second direction and drives the pawl to rotate in the second direction.

[0028] According to any embodiment of the locking device of the present disclosure, a pawl protrusion is disposed on the first surface side of the pawl, the pawl protrusion is fixedly connected to the pawl or integrally formed therefrom, and the axis of the pawl protrusion coincides with the axis of the pawl shaft.

[0029] The first end of the unlocking rod is fixedly connected to the pawl protrusion, and the unlocking rod and the pawl have a preset distance in the axial direction of the pawl protrusion.

[0030] According to any embodiment of the locking device of the present disclosure, the second end of the unlocking lever has an extension dimension away from the pawl in a direction parallel to the axis of the pawl convex shaft.

[0031] According to any embodiment of the locking device of this disclosure, the second end of the unlocking rod is configured in a bent shape such that the second end of the unlocking rod has an outwardly convex curved surface and an inwardly grooved surface to facilitate receiving the second driving force or the third driving force.

[0032] According to any embodiment of the present disclosure, the locking device has only one locking position, which is located on the first end of the locking tongue. When the first end of the pawl abuts against the locking position, the locking device is in a locked state.

[0033] The locking device according to any embodiment of the present disclosure further includes:

[0034] The first switch is triggered by the lock tongue and generates an indication signal when the lock tongue is rotated to the locked position.

[0035] According to any embodiment of the locking device of this disclosure, a switch triggering part is formed on the lock tongue, and when the lock tongue is rotated to the locked position, the switch triggering part triggers the first switch.

[0036] According to any embodiment of the lock device of the present disclosure, the switch trigger portion is formed on the outer periphery of the latch and has an extension dimension in the radial direction of the latch.

[0037] According to any embodiment of the present disclosure, the base plate has a base plate through hole, and a latch outside the locking device can pass through the base plate through hole and engage with the bolt to perform locking or unlocking of the locking device.

[0038] According to any embodiment of the lock device of the present disclosure, when the first end of the latch moves from the unlocked position, passes through the latch through hole of the latch and moves to the locked position, the first end of the pawl can move to the holding position and hold the first end of the latch in the locked position, thereby realizing the locking of the lock device.

[0039] According to any embodiment of the lock device of this disclosure, when the first end of the pawl disengages from the holding position and releases its holding on the first end of the latch, the first end of the latch can disengage from the locked position and the latch through hole and return to the unlocked position, thereby unlocking the lock device.

[0040] According to any embodiment of the locking device of this disclosure, when the latch is in the unlocked position, the latch does not contact the latch as it passes through the through hole in the base plate.

[0041] According to any embodiment of the locking device of this disclosure, the first end of the latch does not contact the latch while passing through the latch through hole and when in the locked position.

[0042] According to any embodiment of the locking device of this disclosure, the electric actuator includes:

[0043] Electric motor;

[0044] The first cable, in the first working state, the motor outputs the first driving force via the first cable;

[0045] The second cable is used to transmit the second driving force to the motor when the motor is in the second operating state.

[0046] According to any embodiment of the locking device of this disclosure, the electric actuator further includes:

[0047] The neutral position switch is configured to mechanically or electrically reset the motor to the neutral position and trigger the neutral position switch when the motor completes the first or second working state, thereby generating a trigger signal.

[0048] According to another aspect of this disclosure, a motor vehicle is provided, comprising: a body; doors and / or covers; and a locking device according to any embodiment of this disclosure, the locking device being used to perform locking or unlocking between the body and the doors and / or covers.

[0049] According to any embodiment of the locking device of this disclosure, the cover is a front hatch cover or a rear trunk cover. Attached Figure Description

[0050] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, 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.

[0051] Figure 1 This is a schematic diagram of the door lock arrangement in existing technology for motor vehicles without B-pillars.

[0052] Figure 2 This is a schematic diagram of the structure of a locking device according to one embodiment of the present disclosure.

[0053] Figure 3 This is a partial structural diagram of a locking device in a locked state according to one embodiment of the present disclosure.

[0054] Figure 4 This is a partial structural schematic diagram of a locking device based on a mechanical drive rod for mechanical unlocking according to one embodiment of the present disclosure.

[0055] Figure 5 This is a partial structural diagram of a locking device according to one embodiment of the present disclosure when operated by an electric actuator.

[0056] Figure 6 This is a schematic diagram of the locking tongue according to one embodiment of the present disclosure.

[0057] Figure 7 This is a schematic diagram of the upper locking rod according to one embodiment of the present disclosure.

[0058] Figure 8This is a schematic diagram of the mechanical drive rod and unlocking rod cooperating in one embodiment of the present disclosure.

[0059] Figure 9 This is a schematic diagram of the structure of the unlocking lever and the pawl in one embodiment of this disclosure.

[0060] Figure 10 This is a schematic diagram of the unlocking lever according to one embodiment of the present disclosure.

[0061] Figure 11 This is a schematic diagram of the pawl structure according to one embodiment of the present disclosure.

[0062] Figure 12 This is a schematic diagram of the structure of an electric actuator according to one embodiment of the present disclosure. Detailed Implementation

[0063] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present disclosure are shown in the accompanying drawings.

[0064] It should be noted that, where there is no conflict, the embodiments and features described in this disclosure can be combined with each other. The technical solutions of this disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0065] Unless otherwise stated, the exemplary implementations / embodiments shown are to be understood as providing exemplary features of various details that provide ways in which the technical concepts of this disclosure can be implemented in practice. Therefore, unless otherwise stated, the features of various implementations / embodiments may be additionally combined, separated, interchanged and / or rearranged without departing from the technical concepts of this disclosure.

[0066] The use of crosshairs and / or shading in the accompanying drawings is generally used to clarify the boundaries between adjacent components. Thus, unless otherwise stated, the presence or absence of crosshairs or shading does not convey or indicate any preference or requirement for the specific material, material properties, dimensions, proportions, commonalities between the illustrated components, or any other characteristics, properties, etc., of the components. Furthermore, in the accompanying drawings, the dimensions and relative dimensions of components may be exaggerated for clarity and / or descriptive purposes. When exemplary embodiments can be implemented differently, a specific process sequence may be performed in a different order than that described. For example, two consecutively described processes may be performed substantially simultaneously or in the reverse order of their description. Furthermore, the same reference numerals denote the same components.

[0067] When a component is referred to as being "on" or "above" another component, "connected to," or "joined to" another component, the component may be directly on, directly connected to, or directly joined to the other component, or there may be intermediate components. However, when a component is referred to as being "directly on" another component, "directly connected to," or "directly joined to" another component, there are no intermediate components. Therefore, the term "connection" can refer to a physical connection, an electrical connection, etc., and may or may not have intermediate components.

[0068] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as “below” or “under” another component or feature would subsequently be positioned “above” said other component or feature. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.

[0069] The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, unless the context clearly indicates otherwise, the singular forms “a” and “the” are intended to include the plural forms as well. Furthermore, when the terms “comprising” and / or “including” and variations thereof are used in this specification, it indicates the presence of the stated features, integrals, steps, operations, parts, components, and / or groups thereof, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, parts, components, and / or groups thereof. It should also be noted that, as used herein, the terms “substantially,” “about,” and other similar terms are used as approximate terms rather than as terms of degree, thus explaining the inherent biases in measurements, calculated values, and / or provided values ​​that would be recognized by one of ordinary skill in the art.

[0070] The following text combines Figures 2 to 12 The locking device of this disclosure will be described in detail.

[0071] refer to Figure 2 , Figure 5 and Figure 12 In some embodiments of this disclosure, the locking device 100 for a motor vehicle includes:

[0072] Base plate 101;

[0073] The locking tongue 102 is rotatably mounted on the base plate 101 via a locking tongue shaft (not shown in the figure);

[0074] Pawl 103 is rotatably mounted on base plate 101 via pawl shaft (not shown in the figure). Pawl 103 cooperates with lock tongue 102 to lock or unlock lock device 100.

[0075] The upper locking rod 104 is coaxially configured with the locking tongue 102. When the upper locking rod 104 is driven by the first driving force, the upper locking rod 104 rotates around the axis of the locking tongue shaft in the first direction and drives the locking tongue 102 to rotate in the first direction, so that the locking tongue 102 rotates from the unlocked position to the locked position.

[0076] The unlocking lever 105 is coaxially configured with the pawl 103. When the unlocking lever 105 is driven by the second driving force, the unlocking lever 105 rotates around the axis of the pawl shaft in a second direction opposite to the first direction and drives the pawl 103 to rotate in the second direction, so that the pawl 103 can disengage from the holding position and release the pawl 103 from holding the lock tongue 102 in the locked position.

[0077] The first driving force and the second driving force are output by the same electric actuator 300.

[0078] Through the above structural design, this disclosure configures the locking rod 104 and the unlocking rod 105 as coaxial with the locking tongue 102 and the pawl 103, respectively. This allows the locking rod 104 and the unlocking rod 105 to be driven by a first driving force and a second driving force in opposite directions, and the first driving force and the second driving force can be located in the same plane. This allows the first driving force for locking and the second driving force for unlocking to be output by the same electric actuator 300, simplifying the structure of the locking device 100.

[0079] Since the axis of the locking tongue shaft is parallel to the axis of the pawl shaft, and the locking lever 104 is coaxially configured with the locking tongue 102, and the unlocking lever 105 is coaxially configured with the pawl 103, the rotation plane of the locking lever 104 is parallel to the rotation plane of the locking tongue 102, and the rotation plane of the unlocking lever 105 is parallel to the rotation plane of the pawl 103, thus saving space occupied by the locking lever 104 and the unlocking lever 105.

[0080] The first direction described above could be Figure 1 The clockwise direction in the middle, the second direction can be Figure 1 The counterclockwise direction.

[0081] refer to Figure 2 , Figure 5 and Figure 12In some embodiments of this disclosure, the electric actuator 300 includes:

[0082] Motor (not shown in the picture);

[0083] The first cable 301 is used to output the first driving force when the motor is in the first working state.

[0084] The second cable 302 is used by the motor to output a second driving force when the motor is in the second working state.

[0085] The first working state and the second working state can be the motor's forward rotation state (or reverse rotation state) and reverse rotation state (forward rotation state).

[0086] In some embodiments of this disclosure, the first cable 301 directly outputs a first driving force (tension) to the upper locking lever 104, and the second cable 302 directly outputs a second driving force (tension) to the unlocking lever 105.

[0087] In other embodiments of this disclosure, the unlocking lever 105 of the locking device 100 can be driven by a third driving force provided by the mechanical drive lever 400, causing the unlocking lever 105 to rotate in a second direction and drive the pawl 103 to rotate in the second direction to disengage from the holding position.

[0088] Continue to refer to Figure 2 , Figure 5 and Figure 12 The second driving force of the second cable 302 is preferably output to the mechanical drive rod 400, and the mechanical drive rod 400 outputs a third driving force to the unlocking rod 105 based on the second driving force, thereby driving the unlocking rod 105 to rotate.

[0089] The mechanical drive lever 400 can also output a third driving force based on the manual operation of the unlocking lever 105, thereby achieving mechanical unlocking.

[0090] refer to Figure 5 In some embodiments of this disclosure, both the electric actuator 300 and the mechanical drive rod 400 are integrated into the locking device 100 as components of the locking device 100.

[0091] In other embodiments of this disclosure, the mechanical drive rod 400 is integrated into the locking device 100 as a component of the locking device 100, while the electric actuator 300 is a component outside the locking device 100.

[0092] In some embodiments of the locking device 100 described above, the electric actuator 300 further includes:

[0093] The neutral position switch (not shown in the figure) can reset the motor to the neutral position and trigger the neutral position switch when the motor completes the first working state or the second working state. The neutral position switch generates a trigger signal to indicate that the motor has reached the neutral position (i.e., the reset state).

[0094] The motor can be mechanically or electrically reset to the neutral position.

[0095] The neutral position switch can be a trigger switch as used in the prior art, and this disclosure does not impose any special restrictions on the type of neutral position switch.

[0096] refer to Figure 3 , Figure 6 and Figure 7 This disclosure describes the design of the upper locking rod structure. In some embodiments of this disclosure, the upper locking rod 104 includes:

[0097] The first end 1041 of the upper locking rod has a first through hole for the upper locking rod, which is sleeved on the locking tongue shaft;

[0098] The second end 1042 of the locking rod is used to receive the first driving force. When the second end 1042 of the locking rod is driven by the first driving force, the locking rod 104 rotates around the axis of the latch shaft in the first direction and drives the latch 102 to rotate around the axis of the latch shaft in the first direction.

[0099] refer to Figure 3 , Figure 6 and Figure 7 The locking device 100 of this disclosure has a locking tongue 102 that is fixedly connected to or rotatably connected to a locking tongue shaft.

[0100] When the latch 102 is fixedly connected to the latch shaft, the latch 102 and the latch shaft can be driven synchronously. When the latch 102 is rotatably connected to the latch shaft, the latch shaft is fixed to the base plate 101, and the latch 102 can be driven to rotate relative to the latch shaft.

[0101] refer to Figure 3 , Figure 6 and Figure 7 In some embodiments of this disclosure, the latch 102 has a latch protrusion 1022, the axis of which is parallel to the axis of the latch shaft and has a preset distance. The latch protrusion 1022 and the upper locking rod 104 are both disposed on the first surface side of the latch 102. Figure 3 On the upper surface side), the upper locking rod 104 drives the locking tongue 102 via the locking tongue convex shaft 1022, causing the locking tongue 102 to rotate in the first direction.

[0102] The first end 1041 of the upper locking rod 104 is configured to be able to rotate relative to the locking tongue 102 and also to rotate relative to the locking tongue shaft, that is, the first end 1041 of the upper locking rod is not fixedly connected to the locking tongue shaft.

[0103] In some embodiments of this disclosure, reference continues to be made to Figure 3 , Figure 6 and Figure 7 The first side of the locking lever 104 disclosed herein ( Figure 7 On the left side of the middle) is formed an upper locking bar drive feature 1043, and the upper locking bar 104 drives the locking tongue protrusion 1022 via the upper locking bar drive feature 1043;

[0104] The locking lever drive feature 1043 is located between the first end 1041 and the second end 1042 of the locking lever.

[0105] refer to Figure 3 , Figure 6 and Figure 7 In this disclosure, the upper locking rod drive feature 1043 is preferably designed as a concave feature, and the locking tongue convex shaft 1022 is designed as a cylinder.

[0106] refer to Figures 8 to 11 This disclosure describes the design of the unlocking lever structure.

[0107] In some embodiments of this disclosure, the unlocking lever 105 includes:

[0108] The first end of the unlocking lever 1051 is coaxially and fixedly connected to the pawl 103.

[0109] The second end 1052 of the unlocking lever is used to receive a second driving force or a third driving force. When the second end 1052 of the unlocking lever is driven by the second driving force or the third driving force, the unlocking lever 105 rotates around the axis of the pawl shaft in the second direction and drives the pawl 103 to rotate in the second direction.

[0110] Continue to refer to Figures 8 to 11 In some embodiments of this disclosure, the first surface side of the pawl 103 of this disclosure ( Figure 9 and Figure 11 The upper surface of the pawl 1032 is provided with a pawl cam 1032, which is fixedly connected to the pawl 103 or integrally formed, and the axis of the pawl cam 1032 coincides with the axis of the pawl cam 103.

[0111] The first end 1051 of the unlocking lever is fixedly connected to the pawl protrusion 1032, and the unlocking lever 105 and the pawl 103 have a preset distance in the axial direction of the pawl protrusion 1032.

[0112] refer to Figures 8 to 11A rectangular hole can be formed on the first end 1051 of the unlocking rod to cooperate with the rectangular block formed on the top end of the pawl protrusion 1032, thereby fixing the first end 1051 of the unlocking rod to the pawl protrusion 1032. Those skilled in the art, inspired by the technical solution of this disclosure, can adjust the fixing connection method between the two, all of which fall within the protection scope of this disclosure.

[0113] refer to Figure 9 and Figure 10 In a preferred embodiment of this disclosure, the second end 1052 of the unlocking lever has an extension dimension away from the pawl 103 in a direction parallel to the axis of the pawl convex shaft 1032. This structural design allows the second end 1052 of the unlocking lever to be easily operated by the mechanical drive lever 400.

[0114] refer to Figure 8 and Figure 9 Preferably, the second end 1052 of the unlocking rod is configured in a bent shape so that the second end 1052 of the unlocking rod has an outward convex curved surface and an inner groove, so as to facilitate receiving the second driving force or the third driving force.

[0115] refer to Figure 3 and Figure 6 In some embodiments of this disclosure, the latch 102 has only one locking position, which is located on the first end 1021 of the latch 102. When the first end 1031 of the pawl 103 abuts against (i.e. engages with) the locking position, the locking device 100 is in a locked state.

[0116] refer to Figure 3 and Figure 4 In some embodiments of this disclosure, the locking device 100 further includes:

[0117] The first switch 107 is triggered by the locking tongue 102 when the locking tongue 102 is rotated to the locked position, and generates an indication signal indicating that the locking tongue 102 is in the locked position.

[0118] refer to Figure 3 In some embodiments of this disclosure, a switch triggering part 1023 is formed on the latch 102. When the latch 102 is rotated to the locked position, the switch triggering part 1023 triggers the first switch 107 to generate a trigger signal to indicate that the latch 102 has reached the locked position.

[0119] The switch trigger portion 1023 may be formed on the outer periphery of the latch 102 and have an extension dimension in the radial direction of the latch 102. In some embodiments of this disclosure, the switch trigger portion 1023 is disposed opposite to the first end portion 1021 of the latch.

[0120] refer to Figure 2 and Figure 4 In some embodiments of this disclosure, the base plate 101 of the locking device 100 has a base plate through hole, and the latch 200 outside the locking device 100 can pass through the base plate through hole and cooperate with the bolt 102 to perform locking or unlocking of the locking device 100.

[0121] Preferably, when the first end 1021 of the latch moves from the unlocked position, passes through the latch through hole of the latch 200 and moves to the locked position, the first end 1031 of the pawl can move to the holding position and hold the first end 1021 of the latch in the locked position, thereby locking the locking device 100.

[0122] When the first end 1031 of the pawl disengages from the holding position and releases its holding on the first end 1021 of the latch, the first end 1021 of the latch can disengage from the locked position and the latch through hole and return to the unlocked position, thereby unlocking the lock device 100.

[0123] More preferably, when the latch 102 is in the unlocked position, the latch 200 does not contact the latch 102 as it passes through the through hole in the base plate.

[0124] During the process of the first end 1021 of the latch passing through the latch hole and when it is in the locked position, the latch 102 does not contact the latch 200.

[0125] The locking tongue 102 of the locking device 100 disclosed herein can rotate from the locked position to the unlocked position based on the elastic force of the locking tongue spring. Figure 2 With the locking tongue in the unlocked position, the pawl 103 of the locking device 100 of this disclosure can be driven from the initial position based on the elastic force of the pawl spring. Figure 2 The pawl is in the initial position (and can be rotated to the holding position based on the obstruction of the mechanical drive rod 400) to achieve engagement between the first end 1031 of the pawl and the locking position of the latch 102.

[0126] The use of locking tongue springs and pawl springs is prior art and will not be described further in this disclosure.

[0127] The electric actuator 300 disclosed herein may use the electric actuator device or similar structure in the applicant's earlier patent application CN202111476814.9.

[0128] This disclosure also provides a motor vehicle, including: a body; doors and / or covers; and a locking device 100 according to any embodiment of this disclosure, the locking device 100 being used to lock or unlock the body and the doors and / or covers.

[0129] The cover can be either the front hatch or the rear trunk cover.

[0130] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.

[0131] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0132] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. A locking device for a motor vehicle, characterized in that, include: Base plate; A locking tongue, which is rotatably mounted on the base plate via a locking tongue shaft; A pawl is rotatably mounted on the base plate via a pawl shaft. The pawl cooperates with the bolt to lock or unlock the locking device. The upper locking rod is coaxially configured with the lock tongue. When the upper locking rod is driven by a first driving force, the upper locking rod rotates around the axis of the lock tongue shaft in a first direction and drives the lock tongue to rotate in the first direction, so that the lock tongue rotates from the unlocked position to the locked position. as well as An unlocking lever is coaxially configured with the pawl. When the unlocking lever is driven by a second driving force, the unlocking lever rotates about the axis of the pawl shaft in a second direction opposite to the first direction and drives the pawl to rotate in the second direction, so that the pawl can disengage from the holding position and release the pawl from holding the latch located in the locked position. The first driving force and the second driving force are output by the same electric actuator.

2. The locking device according to claim 1, characterized in that, The unlocking lever can be driven by a third driving force provided by a mechanical drive lever, causing the unlocking lever to rotate in the second direction and drive the pawl to rotate in the second direction to disengage from the holding position.

3. The locking device according to claim 1 or 2, characterized in that, The locking rod includes: The first end of the locking rod has a first through hole, which is sleeved on the locking tongue shaft; and The second end of the locking rod is used to receive the first driving force. When the second end of the locking rod is driven by the first driving force, the locking rod rotates in a first direction around the axis of the latch shaft and drives the latch to rotate in the first direction around the axis of the latch shaft.

4. The locking device according to claim 3, characterized in that, The latch is fixedly connected to or rotatably connected to the latch shaft.

5. The locking device according to claim 4, characterized in that, The latch has a latch convex shaft, the axis of which is parallel to the axis of the latch shaft and has a preset distance. The latch convex shaft and the upper locking rod are both disposed on the first surface side of the latch. The upper locking rod drives the latch via the latch convex shaft, causing the latch to rotate in the first direction.

6. The locking device according to claim 5, characterized in that, The first end of the upper locking rod is configured to rotate relative to the locking tongue.

7. The locking device according to claim 5, characterized in that, The first side of the upper locking rod has an upper locking rod driving feature, and the upper locking rod drives the locking tongue protrusion via the upper locking rod driving feature; The locking lever driving feature is located between the first end and the second end of the locking lever.

8. The locking device according to claim 7, characterized in that, The upper locking rod driving feature is a concave feature. The locking tongue protrusion is cylindrical.

9. The locking device according to claim 2, characterized in that, The unlocking lever includes: The first end of the unlocking lever is coaxially and fixedly connected to the pawl; and The second end of the unlocking lever is used to receive the second driving force or the third driving force. When the second end of the unlocking lever is driven by the second driving force or the third driving force, the unlocking lever rotates around the axis of the pawl shaft in the second direction and drives the pawl to rotate in the second direction.

10. The locking device according to claim 9, characterized in that, The first surface of the pawl is provided with a pawl protrusion, which is fixedly connected to or integrally formed with the pawl, and the axis of the pawl protrusion coincides with the axis of the pawl shaft. The first end of the unlocking rod is fixedly connected to the pawl protrusion, and the unlocking rod and the pawl have a preset distance in the axial direction of the pawl protrusion.

11. The locking device according to claim 10, characterized in that, The second end of the unlocking lever has an extension dimension away from the pawl in a direction parallel to the axis of the pawl convex shaft.

12. The locking device according to claim 11, characterized in that, The second end of the unlocking rod is configured in a bent shape so that the second end of the unlocking rod has an outward convex curved surface and an inner groove, so as to facilitate receiving the second driving force or the third driving force.

13. The locking device according to claim 12, characterized in that, The latch has only one locking position, which is located on the first end of the latch. When the first end of the pawl abuts against the locking position, the locking device is in a locked state.

14. The locking device according to claim 13, characterized in that, The locking device further includes: The first switch is triggered by the lock tongue and generates an indication signal when the lock tongue is rotated to the locked position.

15. The locking device according to claim 14, characterized in that, A switch triggering part is formed on the latch. When the latch is rotated to the locked position, the switch triggering part triggers the first switch.

16. The locking device according to claim 15, characterized in that... The switch trigger portion is formed on the outer periphery of the latch and has an extension dimension in the radial direction of the latch.

17. The locking device according to claim 16, characterized in that, The base plate has a through hole, and a latch outside the locking device can pass through the through hole and engage with the bolt to lock or unlock the locking device.

18. The locking device according to claim 17, characterized in that, When the first end of the latch moves from the unlocked position, passes through the latch hole of the latch and moves to the locked position, the first end of the pawl can move to the holding position and hold the first end of the latch in the locked position, thereby locking the locking device.

19. The locking device according to claim 18, characterized in that, When the first end of the pawl disengages from the holding position and releases its hold on the first end of the latch, the first end of the latch can disengage from the locked position and the latch through hole and return to the unlocked position, thereby unlocking the lock device.

20. The locking device according to claim 19, characterized in that, When the latch is in the unlocked position, the latch does not contact the latch as it passes through the through hole in the base plate.

21. The locking device according to claim 20, characterized in that, The first end of the latch does not contact the latch during the process of passing through the latch hole and when it is in the locked position.

22. A motor vehicle, characterized in that, include: Body; Car doors and / or covers; as well as The locking device according to any one of claims 1 to 21, the locking device being used to perform locking or unlocking between the vehicle body and the door and / or cover; The cover is either a front hatch cover or a rear trunk cover.

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