Trunk lid latch and vehicle equipped with same

Abstract

The utility model relates to a trunk lid plunger latch and a vehicle provided with the trunk lid plunger latch. The trunk lid plunger latch comprises a base plate, a locking piece and a locking piece, the driving assembly comprises a motor; the pawl assembly can rotate under the driving of the driving assembly; the clamping jaw assembly is provided with a triggering part and is connected to the pawl assembly through an elastic assembly; the travel switch is arranged on the base plate corresponding to the trigger part; and the controller is electrically connected to the driving assembly and the travel switch and can generate a first control signal for enabling the motor to operate so as to unlock the trunk lid, and the controller continues to generate a second control signal for enabling the motor to operate to a greater extent under the condition that a signal of the travel switch is not received within preset time after the motor operates. According to the trunk lid plunger latch, the trunk lid can still be normally popped up when a heavy object is locked on the trunk lid or a sealing strip of the trunk lid is frozen, and user experience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of vehicles, especially to a trunk lid latch and a vehicle equipped with the same. BACKGROUND

[0002] The trunk lid latch device of the existing vehicle is generally used to lock / unlock the trunk lid of the vehicle, which usually comprises a pawl assembly and a ratchet assembly. The hook of the pawl assembly can lock the striker of the trunk lid, and the ratchet assembly can lock the pawl assembly. However, this structure has the following problems:

[0003] (1) When there is a large amount of snow or other heavy objects on the trunk lid, the trunk lid may not be able to pop up normally.

[0004] (2) After a long time of use, the silicon coating on the surface of the sealing strip on the trunk lid will wear out, and the contact position between the trunk lid and the sealing strip will freeze in cold conditions, causing the trunk lid to fail to pop up normally.

[0005] These two situations will cause the user to be unable to determine whether the trunk lid latch has been opened according to the condition of the trunk lid.

[0006] The structure of the lever used in Chinese utility model patent CN216886491U to keep the trunk lid in an unlocked state still cannot make the trunk lid pop up.

[0007] Therefore, there is a need for further improvement of the existing trunk lid latch device.

[0008] The information disclosed in the background section of the utility model is only intended to increase the understanding of the overall background of the utility model and should not be considered as acknowledging or implying in any form that the information constitutes prior art known to those skilled in the art. SUMMARY

[0009] The utility model aims to provide a trunk lid latch and a vehicle equipped with the same, which can still pop up normally when there is a heavy object on the trunk lid or the sealing strip of the trunk lid freezes, improving the user experience.

[0010] According to the first aspect of the utility model, provide a kind of luggage cover lock, comprising: substrate;Driving assembly, it is set on the substrate, and it includes motor;Pawl assembly, it is installed on the substrate, and it can rotate under the driving of the driving assembly;Dog assembly, it is set on the substrate, and it has trigger portion, and it is connected to the pawl assembly by elastic component;Travel switch, it is set on the substrate corresponding to the trigger portion;And controller, it is electrically connected to the driving assembly and the travel switch, and it can generate first control signal for making motor run to unlock luggage cover, and, in the case where no signal of the travel switch is received within predetermined time after motor run, the controller continues to generate second control signal for making motor run greater degree.

[0011] Preferably, the elastic component includes: a first elastic member and a second elastic member located below the first elastic member; the natural length of the first elastic member is equal to the natural length of the second elastic member, the pawl assembly has a T-shaped connecting plate, the T-shaped connecting plate has a first connecting hole and a second connecting hole located below the first connecting hole; the dog assembly has a first hook and a second hook located below the first hook; wherein the two ends of the first elastic member are connected to the first connecting hole and the first hook respectively, and the two ends of the second elastic member are connected to the second connecting hole and the second hook respectively.

[0012] Preferably, the T-shaped connecting plate is connected to the pawl assembly by a first pin, the pawl assembly has two limiting rods, and the T-shaped connecting plate is located between the two limiting rods, so that the T-shaped connecting plate cannot rotate relative to the pawl assembly.

[0013] Preferably, the elastic component includes: a first elastic member and a second elastic member; the natural length of the first elastic member is less than the natural length of the second elastic member, and the first end of the first elastic member and the first end of the second elastic member are connected to the same position of the pawl assembly, and the second end of the first elastic member and the second end of the second elastic member are connected to the same position of the pawl assembly.

[0014] Preferably, the luggage cover lock further includes a first cover body for enclosing the driving assembly.

[0015] Preferably, the travel switch can generate a trigger signal when in contact with the trigger portion and send the trigger signal to the controller.

[0016] Preferably, the motor has an output shaft; wherein the driving assembly further comprises: a worm connected to the output shaft; a worm wheel rotatably arranged on the base plate and engaged with the worm, and having a first push rod and a second push rod on two sides in the thickness direction of the worm wheel respectively, the second push rod being closer to the base plate than the first push rod, and the first push rod and the second push rod being spaced apart by a first predetermined angle in the circumferential direction of the worm wheel, the second push rod being capable of pushing the pawl assembly to rotate in a first direction, and the first push rod being capable of pushing the pawl assembly to rotate in a second direction; and a torsional spring capable of providing a reset force to the worm wheel.

[0017] Preferably, the pawl assembly comprises: a pawl rotatably mounted to the base plate by a second pin; and a pawl plastic package surrounding the pawl, the pawl plastic package having a first supporting rod and a second supporting rod, and the first supporting rod being closer to the base plate than the second supporting rod, and the second supporting rod being closer to the pawl assembly than the first supporting rod.

[0018] Preferably, the pawl assembly comprises: a pawl rotatably mounted to the base plate by a second pin; and a pawl plastic package surrounding the pawl, the pawl plastic package having a first supporting rod and a second supporting rod, and the first supporting rod being closer to the base plate than the second supporting rod, and the second supporting rod being closer to the pawl assembly than the first supporting rod.

[0019] According to a second aspect of the present application, a vehicle is provided with the luggage cover lock as described in the first aspect.

[0020] The luggage cover lock of the present application additionally adds a travel switch corresponding to the triggering part of the pawl assembly, and in the case that no signal of the travel switch is received within a predetermined time after the motor is operated, the controller continues to generate a second control signal for operating the motor to a greater extent, so that the pawl assembly rotates to a greater angle, and in turn drives the pawl assembly to rotate, so as to unlock the luggage cover, thereby enabling the luggage cover to be normally popped out even when there is a heavy object on the luggage cover or the sealing strip of the luggage cover is frozen, and improving the user experience.

[0021] The device of the present application has other characteristics and advantages, which will be apparent from or set forth in the accompanying drawings and subsequent embodiments incorporated herein, which together serve to explain the specific principles of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a perspective structural schematic view of the luggage cover lock of the present application embodiment;

[0023] Figure 2 It is a perspective structural schematic view of the luggage cover lock of the present application embodiment; Figure 1

[0024] Figure 3 ​Structure diagram of the base plate;

[0025] Figure 4 Structure diagram of the worm wheel;

[0026] Figure 5 Position relationship diagram of the driving assembly and the pawl assembly on the base plate;

[0027] Figure 6 Position relationship diagram of the pawl assembly, the pawl assembly and the elastic assembly on the base plate;

[0028] Figure 7 Structure diagram of the base plate; Figure 6 Structure diagram of the base plate after omitting the base plate;

[0029] Figure 8 Structure diagram of the base plate; Figure 7 Structure diagram of the base plate;

[0030] Figure 9 Structure diagram of the base plate; Figure 7 Structure diagram of the base plate;

[0031] Figure 10 Structure diagram of the base plate in the locking state of the luggage cover lock;

[0032] Figure 11 Structure diagram of the base plate in the case one that the trigger part of the pawl assembly contacts the travel switch;

[0033] Figure 12 Structure diagram of the base plate in the case two that the trigger part of the pawl assembly does not contact the travel switch;

[0034] Figure 13 Structure diagram of the base plate in the case three that the trigger part of the pawl assembly does not contact the travel switch.

[0035] Explanation of reference numerals:

[0036] 100, base plate; 101, first mounting hole; 102, second mounting hole; 103, third mounting hole; 104, fourth mounting hole;

[0037] 200, driving assembly; 201, motor; 202, worm; 203, worm wheel; 204, first push rod; 205, torsional spring; 206, fourth pin; 207, second push rod;

[0038] 300, pawl assembly; 301, pawl; 302, pawl plastic package; 303, second pin; 304, T-shaped connecting plate; 3041, first connecting hole; 3042, second connecting hole; 305, first pin; 306, limiting rod; 307, bushing; 308, fifth mounting hole; 309, sixth mounting hole; 310, first supporting rod; 311, second supporting rod;

[0039] 400, claw assembly; 401, trigger part; 402, claw; 403, claw plastic package; 404, third pin; 405, first hook; 406, second hook;

[0040] 500, elastic assembly; 501, first elastic member; 502, second elastic member;

[0041] 600, travel switch;

[0042] 700, controller;

[0043] 800, first cover body;

[0044] 900, striker.

[0045] It should be understood that the drawings are not necessarily to scale, and that the various features are shown in a simplified form and are not necessarily drawn to scale. Specific design features (including, for example, specific dimensions, orientations, locations, and shapes) disclosed in the present application will be determined, in part, by the specific environment in which the application is applied and used.

[0046] In these figures, like numerals designate like or equivalent parts throughout the several views of the drawings. DETAILED DESCRIPTION

[0047] Reference will now be made in detail to various embodiments of the present application, examples of which are illustrated in the accompanying drawings and described below. While the present application will be described in conjunction with the exemplary embodiments, it should be understood that the present application is not limited to these exemplary embodiments. On the contrary, the present application is intended to cover various alternatives, modifications, equivalents, and other embodiments, which can be included within the spirit and scope of the present application as defined by the appended claims.

[0048] The following description is provided in relation to the drawings. Figures 1 to 13 The luggage cover lock of the present application is described.

[0049] As Figure 1 and Figure 2As shown, the luggage cover lock latch of the utility model embodiment comprises: a base plate 100, a driving assembly 200, a pawl assembly 300, a claw assembly 400, an elastic assembly 500, a travel switch 600 and a controller 700.

[0050] The driving assembly 200 is arranged on the base plate 100 and comprises a motor 201, thereby providing driving force for the rotation of the pawl assembly 300. The pawl assembly 300 is installed on the base plate 100 and can rotate under the driving of the driving assembly 200. The claw assembly 400 is arranged on the base plate 100 and has a trigger part 401 and is connected to the pawl assembly 300 through the elastic assembly 500. The travel switch 600 is arranged on the base plate 100 corresponding to the trigger part 401.

[0051] The controller 700 is electrically connected to the driving assembly 200 and the travel switch 600 and can generate a first control signal for operating the motor 201 to unlock the luggage cover, and in the case that no signal of the travel switch 600 is received within a predetermined time after the motor 201 is operated, the controller 700 continues to generate a second control signal for operating the motor 201 to a greater extent.

[0052] The utility model embodiment adds the travel switch 600 corresponding to the trigger part 401 of the claw assembly 400, and in the case that no signal of the travel switch 600 is received within a predetermined time after the motor 201 is operated, the controller 700 continues to generate a second control signal for operating the motor 201 to a greater extent, so that the pawl assembly 300 rotates to a greater angle, and the claw assembly 400 is driven to rotate, thereby unlocking the luggage cover, so that the luggage cover can be normally popped out when there is a heavy object on the luggage cover or the sealing strip of the luggage cover is frozen, and the user experience is improved.

[0053] As shown, Figure 3 The base plate 100 has a first mounting hole 101, a second mounting hole 102, a third mounting hole 103 and a fourth mounting hole 104. The first mounting hole 101 is used for mounting the pawl assembly 300, the second mounting hole 102 is used for mounting the claw assembly 400, the third mounting hole 103 is used for mounting the worm gear 203 described below, and the fourth mounting hole 104 is used for mounting the motor 201 of the driving assembly 200.

[0054] In the exemplary embodiment, as shown, Figure 2 And Figure 5 The driving assembly 200 comprises: a motor 201, a worm 202, a worm gear 203 and a torsional spring 205.

[0055] The motor 201 is installed at the fourth mounting hole 104 of the base plate 100 and has an output shaft. The worm 202 is connected to the output shaft and can rotate around the axis of the output shaft together with the output shaft.

[0056] The worm gear 203 is rotatably mounted at the third mounting hole 103 of the base plate 100 by the fourth pin 206, and is engaged with the worm 202, and has the first push rod 204 and the second push rod 207 on both sides in the thickness direction thereof, respectively (see Figure 4 ), the second push rod 207 is closer to the base plate 100 than the first push rod 204, and the first push rod 204 and the second push rod 207 are spaced apart by a first predetermined angle in the circumferential direction of the worm gear 203. The second push rod 207 is capable of contacting the first lever 310 of the pawl assembly 300 described below, so that the second push rod 207 is capable of pushing the pawl assembly 300 to rotate in the first direction (i.e., the counterclockwise direction in Figure 2 ), the first push rod 204 is capable of contacting the second lever 311 of the pawl assembly 300 described below, so that the first push rod 204 is capable of pushing the pawl assembly 300 to rotate in the second direction (i.e., the clockwise direction in Figure 2 ).

[0057] One end of the torsion spring 205 abuts against the worm gear 203, and the other end of the torsion spring 205 abuts against the base plate 100, so that the torsion spring 205 is capable of providing a restoring force to the worm gear 203, which is capable of pushing the worm gear 203 to restore when the motor 201 is not operated.

[0058] In the exemplary embodiment, as shown in Figure 2 , the pawl assembly 300 includes a pawl 301 and a pawl plastic package 302.

[0059] The pawl 301 is rotatably mounted to the first mounting hole 101 of the base plate 100 by the second pin 303. The pawl 301 is the main body of the pawl assembly 300, and can be a metal material.

[0060] The pawl plastic package 302 surrounds the pawl 301. The pawl plastic package 302 can be a plastic material, and is easy to be processed into various shapes, thereby adapting to the connection with other parts. The pawl plastic package 302 has the first lever 310 and the second lever 311 (see Figure 2 ), and the first lever 310 is closer to the base plate 100 than the second lever 311, and the second lever 311 is closer to the click assembly 400 than the first lever 310.

[0061] Specifically, the second push rod 207 is capable of contacting the side of the first lever 310 of the pawl plastic package 302 close to the second lever 311, so that the second push rod 207 is capable of pushing the pawl assembly 300 to rotate in the first direction (i.e., Figure 2The first push rod 204 can contact the side of the second support rod 311 of the pawl overmolded part 302 close to the first support rod 310, so that the first push rod 204 can push the pawl assembly 300 around the second pin 303 along the second direction (i.e., Figure 2 (clockwise in the direction of rotation).

[0062] In an exemplary embodiment, Figure 2 As shown, the claw assembly 400 includes a claw 402 and a claw overmolded part 403 .

[0063] The claw 402 is rotatably mounted to the second mounting hole 102 of the base plate 100 via a third pin 404. The claw 402 forms the main body of the claw assembly 400 and can be made of metal. A claw overmold 403 surrounds the claw 402 and includes the aforementioned triggering portion 401. The claw overmold 403 can be made of plastic and can be easily processed into various shapes. During the injection molding of the claw overmold 403, the triggering portion 401 is also injected.

[0064] When the trunk lid is not popped up, the pawl overmold 403 of the pawl assembly 400 is engaged with the pawl overmold 302 of the pawl assembly 300 .

[0065] In one embodiment, Figure 2 As shown, the elastic component 500 includes a first elastic member 501 and a second elastic member 502 located below the first elastic member 501, the natural length of the first elastic member 501 is equal to the natural length of the second elastic member 502, and the pawl assembly 300 has a T-shaped connecting plate 304, the T-shaped connecting plate 304 has a first connecting hole 3041 and a second connecting hole 3042 located below the first connecting hole 3041.

[0066] The claw assembly 400 has a first hook 405 and a second hook 406 located below the first hook 405. Specifically, the first hook 405 is arranged on the claw 402, and the second hook 406 is arranged on the claw overmolded part 403.

[0067] Two ends of the first elastic member 501 are connected to the first connection hole 3041 and the first hook 405 respectively, and two ends of the second elastic member 502 are connected to the second connection hole 3042 and the second hook 406 respectively.

[0068] The positions of the first hook 405 and the second hook 406 can be flexibly adjusted. For example, the first hook 405 and the second hook 406 can both be set on the claw 402, or the first hook 405 and the second hook 406 can both be set on the claw overmolded part 403, or the first hook 405 can be set on the claw overmolded part 403 and the second hook 406 can be set on the claw 402.

[0069] When the trunk lid can be normally popped up, the motor 201 only operates under the control of the first control signal, so that the second control pawl assembly 300 rotates around the second pin 303 along the first direction (i.e., the counterclockwise direction in Figure 10 ), by a second predetermined angle, so that only the first elastic member 501 is stretched, and the second elastic member 502 is not stretched. When the trunk lid cannot be normally popped up, the motor 201 can operate to a greater extent under the control of the second control signal, so that the second control pawl assembly 300 rotates around the second pin 303 along the first direction (i.e., the counterclockwise direction in Figure 10 ), by a third predetermined angle, which is greater than the second predetermined angle, so that both the first elastic member 501 and the second elastic member 502 can be stretched. That is, only when the trunk lid cannot be normally popped up, the second elastic member 502 works, so that the service life of the second elastic member 502 can be increased, thereby improving the durability of the trunk lid latch.

[0070] As shown in Figures 6 to 9 , the T-shaped connecting plate 304 is connected to the pawl assembly 300 through the first pin 305 and the bushing 307, and the pawl plastic package 302 of the pawl assembly 300 has two limiting rods 306, the T-shaped connecting plate 304 is located between the two limiting rods 306, so that the T-shaped connecting plate 304 cannot rotate relative to the pawl assembly 300, i.e., the T-shaped connecting plate 304 can rotate with the pawl assembly 300 around the second pin 303. The limiting rods 306 are also injection molded together when the pawl plastic package 302 is injection molded.

[0071] As shown in Figure 8 and Figure 9 , the pawl plastic package 302 has a fifth mounting hole 308, and the pawl 301 has a sixth mounting hole 309 corresponding to the fifth mounting hole 308, and the first pin 305 passes through the T-shaped connecting plate 304, the bushing 307, the fifth mounting hole 308 of the pawl plastic package 302, and the sixth mounting hole 309 of the pawl 301, so as to connect the T-shaped connecting plate 304 to the pawl assembly 300.

[0072] In another embodiment, the elastic assembly 500 includes a first elastic member 501 and a second elastic member 502, and the natural length of the first elastic member 501 is less than the natural length of the second elastic member 502. In this embodiment, the first end of the first elastic member 501 and the first end of the second elastic member 502 can be connected to the same position of the T-shaped connecting plate 304, such as both being connected to the first connecting hole 3041, or both being connected to the second connecting hole 3042. In addition, the second end of the first elastic member 501 and the second end of the second elastic member 502 can be connected to the same position of the pawl assembly 400, such as both being connected to the first hook 405, or both being connected to the second hook 406.

[0073] Although the first end of the first elastic member 501 and the first end of the second elastic member 502 are connected to the same position, and the second end of the first elastic member 501 and the second end of the second elastic member 502 are also connected to the same position, due to the natural length of the first elastic member 501 being less than the natural length of the second elastic member 502, the following effects can still be achieved: when the trunk lid can be normally popped up, the motor 201 only operates under the control of the first control signal, so that the second control pawl assembly 300 rotates around the second pin 303 by a second predetermined angle along the first direction (i.e., the counterclockwise direction in Figure 10 ), so that only the first elastic member 501 is stretched, and the second elastic member 502 is not stretched. When the trunk lid cannot be normally popped up, the motor 201 can operate to a greater extent under the control of the second control signal, so that the second control pawl assembly 300 rotates around the second pin 303 by a third predetermined angle along the first direction (i.e., the counterclockwise direction in Figure 10 ), so that the first elastic member 501 and the second elastic member 502 are both stretched.

[0074] In an exemplary embodiment, the trunk lid lock of the utility model further comprises a first cover body 800, which is used for enclosing the driving assembly 200.

[0075] In an exemplary embodiment, the trunk lid lock of the utility model further comprises a second cover body, which is used for enclosing the pawl assembly 300, the claw assembly 400, the elastic assembly 500, the travel switch 600, and the controller 700.

[0076] The utility model embodiment also provides a vehicle equipped with the aforementioned trunk lid lock. Other configurations and effects of the vehicle of the utility model embodiment are known to those skilled in the art, and are not described in detail in order to reduce redundancy.

[0077] The operation of the trunk lid lock of the utility model embodiment will be described below in conjunction with the accompanying drawings.

[0078] In the locked state of the trunk lid lock, the pawl assembly 300 is located at the pawl initial position, the claw assembly 400 is located at the claw initial position, the pawl assembly 300 is engaged with the claw assembly 400 (see Figure 10 for cooperation), the trigger part 401 of the claw assembly 400 is not in contact with the travel switch 600, and the first elastic member 501 and the second elastic member 502 are both in the natural state.

[0079] The popping up of the trunk lid lock is divided into the following three cases.

[0080] Case one: the pawl assembly 400 can rotate enough angle, so that the luggage cover lock can be normally popped up, the specific process is as follows:

[0081] After the user opens the corresponding switch on the vehicle, the controller 700 generates a first control signal and sends the first control signal to the motor 201 of the driving assembly 200. Under the control of the first control signal, the output shaft of the motor 201 and the worm 202 rotate M circles around the axis of the output shaft along the third direction, so as to drive the worm gear 203 to rotate along the second direction (i.e., clockwise in Figure 10 , the second direction is opposite to the first direction) around the fourth pin 206, thereby driving the pawl assembly 300 to rotate along the first direction (i.e., counterclockwise in Figure 10 ) by a second predetermined angle, so that the pawl assembly 300 rotates to the pawl first working position.

[0082] With the rotation of the pawl assembly 300, the first elastic member 501 is gradually stretched, and the pawl assembly 400 is pulled to rotate along the first direction around the third pin 404.

[0083] When the pawl assembly 400 rotates to the state that the trigger part 401 contacts the travel switch 600 (see Figure 11 for cooperation), the travel switch 600 can generate a trigger signal and send the trigger signal to the controller 700, at this time, the pawl assembly 400 is located at the pawl working position.

[0084] During the entire rotation process of the pawl assembly 300, the second elastic member 502 is always in a natural state.

[0085] When there is a heavy object on the luggage cover, the luggage cover cannot be normally popped up, which is divided into the following case two and case three.

[0086] Case two: there is a heavy object on the luggage cover, which causes the pawl assembly 400 to be able to rotate only a small angle, so that the striker 900 of the luggage cover is still locked by the pawl assembly 400, causing the luggage cover to be unable to be normally popped up, in this case, the specific working process of the luggage cover lock of the utility model is as follows:

[0087] After the user opens the corresponding switch on the vehicle, the controller 700 generates a first control signal and sends the first control signal to the motor 201 of the driving assembly 200. Under the control of the first control signal, the output shaft of the motor 201 and the worm 202 rotate M times around the axis of the output shaft in the third direction, where M is greater than 0, to drive the worm gear 203 to rotate around the fourth pin 206 in the second direction, thereby driving the pawl assembly 300 to rotate around the second pin 303 in the first direction by a second predetermined angle, so as to rotate to the pawl first working position. In the process of rotation, the worm gear 203 twists the torsional spring 205, so that the torsional spring 205 generates a restoring force. Specifically, the second push rod 207 is in contact with the first branch rod 310 of the pawl assembly 300 and pushes the first branch rod 310 to rotate in the first direction, so as to push the pawl assembly 300 to rotate in the first direction.

[0088] In case two, even if the pawl assembly 300 rotates in the first direction by the second predetermined angle, the claw assembly 400 can only rotate by a smaller angle to rotate to the claw intermediate position between the claw working position and the claw initial position, and the trigger part 401 of the claw assembly 400 cannot be in contact with the travel switch 600 (see the cooperation in Figure 12 ) and cannot generate a trigger signal, so that the controller 700 cannot receive the trigger signal of the travel switch 600 within a predetermined time after the motor 201 operates.

[0089] After the pawl assembly 300 rotates around the second pin 303 in the first direction by the second predetermined angle, the motor 201 stops operating. Under the action of the restoring force of the torsional spring 205, the worm gear 203 rotates around the fourth pin 206 in the first direction to drive the pawl assembly 300 to rotate in the second direction, but since the claw assembly 400 has already rotated by a smaller angle, the pawl assembly 300 cannot rotate to the pawl initial position, but can only rotate to the pawl standby position. Specifically, the first push rod 204 of the worm gear 203 rotates around the fourth pin 206 in the first direction to contact the second branch rod 311, so that the first push rod 204 can push the second branch rod 311 to rotate in the second direction, thereby driving the pawl assembly 300 to rotate in the second direction.

[0090] Since no trigger signal of the travel switch 600 is received within a predetermined time after the motor 201 operates, the controller 700 continues to generate a second control signal and sends the second control signal to the motor 201.

[0091] Under the control of the second control signal, the output shaft of the motor 201 and the worm 202 rotate N times around the axis of the output shaft in the third direction, where N is greater than M (that is, the second control signal makes the motor 201 operate to a greater extent), to drive the worm gear 203 to rotate around the fourth pin 206 in the second direction (that is, Figure 10clockwise direction) to drive the pawl assembly 300 to rotate along the first direction (i.e., the clockwise direction) by the second predetermined angle, so as to rotate to the pawl first working position. In the process of rotating, the worm wheel 203 twists the torsion spring 205, so that the torsion spring 205 generates a restoring force. Specifically, the second push rod 207 is in contact with the first supporting rod 310 of the pawl assembly 300 and pushes the first supporting rod 310 to rotate along the first direction, so as to push the pawl assembly 300 to rotate along the first direction. Figure 10

[0092] The process of rotating the pawl assembly 300 from the pawl standby position to the pawl second working position includes two first stages and a second stage.

[0093] In the first stage, the pawl assembly 300 only stretches the first elastic member 501.

[0094] In the second stage, the pawl assembly 300 simultaneously stretches the first elastic member 501 and the second elastic member 502, so as to drive the claw assembly 400 to rotate along the first direction to the claw working position. At this time, the trigger part 401 is in contact with the travel switch 600, so that the travel switch 600 generates a trigger signal and sends the trigger signal to the controller 700.

[0095] Case three: the luggage cover is loaded with a heavy object or the like, so that the claw assembly 400 cannot rotate at all, and the striker 900 of the luggage cover is still locked by the claw assembly 400, so that the luggage cover cannot be normally popped up. In this case, the specific working process of the luggage cover lock of the utility model is as follows:

[0096] After the user opens the corresponding switch on the vehicle, the controller 700 generates a first control signal and sends the first control signal to the motor 201 of the driving assembly 200. Under the control of the first control signal, the output shaft of the motor 201 and the worm 202 rotate M turns along the third direction around the axis of the output shaft, so as to drive the worm wheel 203 to rotate along the second direction (i.e., the clockwise direction) around the fourth pin 206, and further drive the pawl assembly 300 to rotate along the first direction (i.e., the clockwise direction) around the second pin 303 by the second predetermined angle, so as to rotate to the pawl first working position. Figure 10 Figure 10 In the process of rotating, the worm wheel 203 twists the torsion spring 205, so that the torsion spring 205 generates a restoring force. Specifically, the second push rod 207 is in contact with the first supporting rod 310 of the pawl assembly 300 and pushes the first supporting rod 310 to rotate along the first direction, so as to push the pawl assembly 300 to rotate along the first direction.

[0097] In case three, even if the pawl assembly 300 rotates along the first direction by the second predetermined angle, the claw assembly 400 cannot rotate at all and stays in the claw initial position, and the trigger part 401 of the claw assembly 400 cannot be in contact with the travel switch 600 (see Figure 13 ​​) and cannot generate a trigger signal, so that the controller 700 does not receive the trigger signal of the limit switch 600 within a predetermined time after the motor 201 starts running.

[0098] After the pawl assembly 300 rotates about the second pin 303 in the first direction by a second predetermined angle, the motor 201 stops. Under the reset force of the torsion spring 205, the worm gear 203 rotates about the fourth pin 206 in the first direction, driving the pawl assembly 300 to rotate in the second direction by a second predetermined angle back to the initial pawl position, thus completing the reset. Specifically, the first push rod 204 of the worm gear 203 rotates about the fourth pin 206 in the first direction, contacting the second support rod 311. This allows the first push rod 204 to push the second support rod 311 to rotate in the second direction, thereby driving the pawl assembly 300 to rotate in the second direction.

[0099] Since the controller 700 does not receive the trigger signal from the travel switch 600 within the predetermined time after the motor 201 starts operating, the controller 700 continues to generate the second control signal and sends the second control signal to the motor 201 .

[0100] The working process of the motor 201 under the control of the second control signal, and the corresponding working processes of the pawl assembly 300, the claw assembly 400, the first elastic member 501 and the second elastic member 502 are similar to those in the second case and are not described again here.

[0101] For convenience of explanation and precise definition of the appended claims, the terms "upper", "lower", "inner", "outer", "above", "below", "upper", "lower", "upward", "downward", "front", "back", "behind", "inside", "outside", "inward", "outward", "inner", "exterior", "inner", "external", "forward", and "backward" are used to describe the features of the exemplary embodiments with reference to the positions of such features as shown in the accompanying drawings.

[0102] The foregoing descriptions of specific exemplary embodiments of the present invention are presented for purposes of illustration and description. The foregoing descriptions are not intended to be exhaustive, nor are they intended to limit the present invention to the precise forms disclosed, and it is apparent that many variations and modifications are possible in light of the foregoing teachings. The exemplary embodiments have been selected and described to explain the specific principles of the present invention and its practical application, thereby enabling others skilled in the art to realize and utilize the various exemplary embodiments of the present invention and its various alternatives and modifications. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A trunk lid latch, characterized in that: include: substrate; a driving assembly, which is disposed on the substrate and includes a motor; a pawl assembly mounted on the base plate and capable of rotating under the drive of the drive assembly; a claw assembly, which is disposed on the base plate and has a trigger portion and is connected to the pawl assembly via an elastic component; a travel switch, which is arranged on the substrate corresponding to the trigger portion; as well as A controller is electrically connected to the drive assembly and the travel switch and is capable of generating a first control signal for operating the motor to unlock the trunk lid, and, if no signal from the travel switch is received within a predetermined time after the motor has operated, the controller continues to generate a second control signal for operating the motor to a greater extent.

2. The trunk lid latch according to claim 1, wherein: The elastic assembly includes: a first elastic member and a second elastic member located below the first elastic member; The natural length of the first elastic member is equal to the natural length of the second elastic member, and the pawl assembly has a T-shaped connecting plate, and the T-shaped connecting plate has a first connecting hole and a second connecting hole located below the first connecting hole; The claw assembly has a first hook and a second hook located below the first hook; Wherein, two ends of the first elastic member are respectively connected to the first connecting hole and the first hook, and two ends of the second elastic member are respectively connected to the second connecting hole and the second hook.

3. The trunk lid latch according to claim 2, wherein: The T-shaped connecting plate is connected to the pawl assembly through a first pin. The pawl assembly has two limiting rods. The T-shaped connecting plate is located between the two limiting rods so that the T-shaped connecting plate cannot rotate relative to the pawl assembly.

4. The trunk lid latch according to claim 1, wherein: The elastic assembly includes: a first elastic member and a second elastic member; The natural length of the first elastic member is smaller than the natural length of the second elastic member, and the first end of the first elastic member and the first end of the second elastic member are connected to the same position of the pawl assembly, and the second end of the first elastic member and the second end of the second elastic member are connected to the same position of the pawl assembly.

5. The trunk lid latch according to claim 1, wherein: It further comprises a first cover body, wherein the first cover body is used to surround the driving assembly.

6. The trunk lid latch according to claim 1, wherein: The travel switch is capable of generating a trigger signal when in contact with the trigger portion, and sending the trigger signal to the controller.

7. The trunk lid latch according to claim 1, wherein: The motor has an output shaft; wherein the drive assembly further comprises: a worm connected to the output shaft; a worm wheel rotatably disposed on the base plate and meshing with the worm, and having a first push rod and a second push rod on both sides thereof in a thickness direction, the second push rod being closer to the base plate than the first push rod, and the first push rod and the second push rod being spaced apart by a first predetermined angle in a circumferential direction of the worm wheel, the second push rod being capable of pushing the pawl assembly to rotate in a first direction, and the first push rod being capable of pushing the pawl assembly to rotate in a second direction; and A torsion spring is provided to provide a restoring force to the worm gear.

8. The trunk lid latch according to claim 7, wherein: The pawl assembly comprises: a pawl rotatably mounted to the base plate via a second pin; and The pawl overmolding part surrounds the pawl, and the pawl overmolding part has a first support rod and a second support rod, wherein the first support rod is closer to the base plate than the second support rod, and the second support rod is closer to the claw assembly than the first support rod.

9. The trunk lid latch according to claim 1, wherein: The claw assembly comprises: a claw rotatably mounted to the base plate via a third pin; and A jaw overmold surrounds the jaw.

10. A vehicle, characterized in that: It is equipped with a trunk lid latch according to any one of claims 1 to 9.

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