CN115162864B - Novel electric opening tail door lock - Google Patents
Novel electric opening tail door lockInfo
- Publication number
- CN115162864B CN115162864B CN202210890610.8A CN202210890610A CN115162864B CN 115162864 B CN115162864 B CN 115162864B CN 202210890610 A CN202210890610 A CN 202210890610A CN 115162864 B CN115162864 B CN 115162864B
- Authority
- CN
- China
- Prior art keywords
- pawl
- housing
- lock tongue
- lock
- signal lever
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
- E05B83/16—Locks for luggage compartments, car boot lids or car bonnets
- E05B83/18—Locks for luggage compartments, car boot lids or car bonnets for car boot lids or rear luggage compartments
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/02—Power-actuated vehicle locks characterised by the type of actuators used
- E05B81/04—Electrical
- E05B81/06—Electrical using rotary motors
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
- E05B81/16—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators operating on locking elements for locking or unlocking action
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/54—Electrical circuits
- E05B81/64—Monitoring or sensing, e.g. by using switches or sensors
- E05B81/72—Monitoring or sensing, e.g. by using switches or sensors the lock status, i.e. locked or unlocked condition
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
- E05B85/20—Bolts or detents
- E05B85/24—Bolts rotating about an axis
- E05B85/243—Bolts rotating about an axis with a bifurcated bolt
Landscapes
- Lock And Its Accessories (AREA)
Abstract
本发明提供了一种新型电动开启尾门锁，包括外壳、锁舌、锁舌复位弹簧、棘爪、棘爪复位弹簧、棘爪信号拨杆、棘爪信号拨杆复位弹簧、微动开关、电动驱动单元、手动驱动单元、电路单元，棘爪与锁舌配合实现锁舌的全锁、半锁和打开，锁舌从全锁到半锁再到打开时，电动驱动单元或手动驱动单元驱动棘爪转动，棘爪带动棘爪信号拨杆转动，棘爪信号拨杆转动会压缩微动开关，在锁舌在由打开到半锁再到全锁时，棘爪和棘爪信号拨杆在复位弹簧的作用下复位，释放微动开关，因此微动开关会随着棘爪状态而改变信号输出电路的通断状态，从而输出锁体状态的反馈信号，本发明不仅能够反馈锁体开闭状态，而且锁体结构紧凑、密封性好、制造成本低。
The present invention provides a novel electric tailgate lock, comprising a housing, a lock tongue, a lock tongue return spring, a pawl, a pawl return spring, a pawl signal lever, a pawl signal lever return spring, a micro switch, an electric drive unit, a manual drive unit, and a circuit unit. The pawl cooperates with the lock tongue to realize full locking, half locking, and opening of the lock tongue. When the lock tongue changes from full locking to half locking and then to opening, the electric drive unit or the manual drive unit drives the pawl to rotate, and the pawl drives the pawl signal lever to rotate. The rotation of the pawl signal lever compresses the micro switch. When the lock tongue changes from opening to half locking and then to full locking, the pawl and the pawl signal lever are reset under the action of the return spring, releasing the micro switch. Therefore, the micro switch changes the on-off state of the signal output circuit according to the state of the pawl, thereby outputting a feedback signal of the lock body state. The present invention can not only feedback the open and closed state of the lock body, but also has a compact lock body structure, good sealing performance, and low manufacturing cost.
Description
Technical Field
The invention belongs to the technical field of automobile locks, and particularly relates to a novel electric unlocking tail door lock.
Background
With the development of the automobile industry, the 'new and the fourth' become the core of the automobile industry, and the demands of consumers on the intelligent and electric automobiles are higher and higher. The electric tail gate system is developed, the grasping lock is a part of the electric tail gate system, is an important part of the automobile body, is a special component integrating security, decoration and functionality. The existing tail door lock can not feed back the open and close states of the lock body after the door lock is opened or closed.
Disclosure of Invention
The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a novel electric tail gate lock which can feed back the open/close state of the lock body, and has a compact structure, good sealing property, and low manufacturing cost.
The invention provides a novel electric unlocking tail door lock, which is characterized by comprising the following components:
A housing provided with a plug portion;
The lock tongue is rotatably arranged on the shell and is provided with half locking meshing teeth and full locking meshing teeth;
A spring bolt return spring, one end of which is arranged on the spring bolt, and the other end of which is arranged on the shell;
The pawl is rotatably arranged on the shell and matched with the lock tongue, so that the lock tongue is fully locked, half locked or opened;
a pawl return spring having one end mounted on the pawl and the other end mounted on the housing;
The pawl signal deflector rod is rotatably arranged on the shell, is coaxial with the pawl, is positioned between the pawl and the shell and is matched with the pawl, the pawl can push the pawl signal deflector rod to rotate, and the pawl signal deflector rod and the lock tongue are always in a contact state;
One end of the pawl signal shifting lever reset spring is arranged on the shell, and the other end of the pawl signal shifting lever reset spring is arranged on the pawl signal shifting lever;
The micro switch is arranged on the shell, the pawl is not contacted with the micro switch when the pawl pushes the pawl signal deflector rod to rotate, and the pawl signal deflector rod can compress or release the micro switch;
The electric driving unit comprises a motor, a worm wheel reset spring and a pushing block, wherein the motor is arranged on the shell, the worm is fixed on a motor shaft of the motor, the worm wheel is rotatably arranged on the shell and meshed with the worm, the worm wheel reset spring is respectively arranged on the shell and the worm wheel at two ends, the pushing block is arranged on the worm wheel, one end of the pawl faces the worm wheel and is matched with the pushing block, and when the worm wheel rotates, the pushing block can push the pawl to rotate;
The manual driving unit comprises an unlocking transition pull rod rotatably arranged on the shell, an unlocking transition pull rod reset spring with two ends respectively arranged on the shell and the unlocking transition pull rod, and an unlocking pull rod fixed on the unlocking transition pull rod, wherein the unlocking transition pull rod is matched with the pawl and can push the pawl to rotate, and the manual driving unit comprises
The circuit unit comprises a power supply circuit and a signal output circuit, wherein the power supply circuit is installed on the shell and connected with the motor, the signal output circuit is installed on the shell and connected with the micro switch, and electric pins of the power supply circuit and the signal output circuit are positioned on the plug connector part and form a plug connector connected with external equipment.
Further, the novel electric unlocking tail door lock can be characterized in that a push plate and a pressing plate are arranged on one side, facing the pawl, of the pawl signal deflector rod, the push plate is located on one side, far away from the lock tongue, of the pawl signal deflector rod, the pressing plate is located at the end portion, facing one end of the micro switch, of the pawl signal deflector rod, the pressing plate and the micro switch are located on the same rotation plane, the pawl signal deflector rod rotates, the pressing plate compresses or releases the micro switch, the pawl is provided with a step feature, one end, facing the worm wheel, of the pawl is provided with an upper step, one end of the pawl is provided with a lower step, and after the pawl and the pawl signal deflector rod are installed, the height of the pressing plate is lower than the bottom side of the upper step.
Furthermore, the novel electric unlocking tail door lock can be characterized in that the full locking meshing teeth are tooth grooves which are completely penetrated in the thickness direction of the lock tongue, the half locking meshing teeth are blind hole tooth grooves which are not penetrated in the thickness direction of the lock tongue, when the lock tongue is in a half locking position, the pawl is meshed with the blind hole tooth grooves, the pawl signal deflector rod is contacted with an impermeable part of the half locking meshing teeth, and the pawl signal deflector rod is compressed or released before rotating to the half locking position in the process of fully locking the lock tongue to opening the lock tongue.
Furthermore, the novel electric unlocking tail door lock can be characterized in that a second groove is formed in one side, facing away from the pawl signal deflector rod, of the pawl, a first protrusion is arranged on the unlocking transition pull rod, and the first protrusion extends into the second groove.
Furthermore, the novel electric unlocking tail door lock can be characterized in that a boss is arranged on one side, facing the lock tongue, of the pawl, an elastic release wall is arranged on the shell, one end of the elastic release wall is fixed on the shell, the other end of the elastic release wall is suspended, a second bulge is arranged on the lock tongue, the suspended end of the elastic release wall is matched with the boss to realize a snow load function, the position of the second bulge on the lock tongue and the shape of the elastic release wall meet that when the lock tongue is in a half-locking position and the pawl is disengaged from the half-locking meshing tooth, the suspended end of the elastic release wall is contacted with a side wall, facing the suspended end of the elastic release wall, of the boss, and when the lock tongue is in a half-locking position to an opening position, the second bulge can push the elastic release wall to swing towards the direction of the worm wheel.
Further, the novel electric unlocking tail door lock can be characterized in that a snow load spring is arranged on the shell, one end of the snow load spring is limited by the shell, and the other end of the snow load spring is limited by the elastic release wall towards one side of the worm wheel.
Furthermore, the novel electric unlocking tail door lock can also be characterized in that the power supply circuit is two first conductive metal sheets, one ends of the two first conductive metal sheets are connected with the motor, the other ends are electric pins,
The signal output circuit is two second conductive metal sheets, one ends of the two second conductive metal sheets are connected with the micro switch, and the other ends of the two second conductive metal sheets are electric pins.
Further, the novel electric unlocking tail door lock can be characterized in that the electric driving unit further comprises a worm wheel limiting buffer block, wherein the worm wheel limiting buffer block is arranged on the shell, at least one part of the worm wheel limiting buffer block is positioned in the rotation radius of the pushing block and is used for limiting the rotation angle of the worm wheel and buffering the worm wheel after the worm wheel rotates to the maximum angle.
Further, the novel electric unlocking tail door lock can be characterized by further comprising a lock catch buffer block which is arranged at the opening part of the shell and used for buffering the shell when the lock tongue is driven to be closed by external force.
Furthermore, the novel electric unlocking tail door lock can be characterized by further comprising a pawl buffer block which is arranged on the shell and positioned on one side of the pawl, which is opposite to the lock tongue, and the pawl buffer block is used for buffering the pawl after the pawl rotates.
The invention has the following advantages:
According to the novel electric unlocking tail door lock, the micro switch can change the on-off state of the signal output circuit along with the on-off state of the pawl, so that signal conversion is realized, a feedback signal of the lock body state is output, and the function of signal feedback is realized.
The novel electric unlocking tail door lock has the advantages of compact structure, good sealing performance and low manufacturing cost due to the design and the matching of various structures.
Drawings
FIG. 1 is a schematic view of a structure of a novel electric unlocking tail gate lock according to an embodiment of the present invention;
FIG. 2 is a front view of FIG. 1 with the cover plate removed (with the locking bolt in a fully locked condition);
FIG. 3 is a rear view of the housing of FIG. 1 with the housing removed;
FIG. 4 is an exploded view of a new electric unlocking tail gate in an embodiment of the present invention;
FIG. 5 is an enlarged view of section A of FIG. 4;
FIG. 6 is an enlarged view of section B of FIG. 4;
FIG. 7 is an enlarged view of section C of FIG. 4;
FIG. 8 is a schematic diagram of an unlocking lever drive in an embodiment of the present invention;
fig. 9 is a schematic structural view of a manual driving unit in the embodiment of the present invention;
FIG. 10 is a diagram of the positional relationship of a pawl and a pawl signal lever in an embodiment of the present invention;
Fig. 11 is a front view of fig. 10;
FIG. 12 is a front view of a portion of the structure with the locking bolt in a semi-locked state;
FIG. 13 is a schematic illustration of the positions of the locking bolt and pawl signal lever when the locking bolt is in a half-locked state;
FIG. 14 is a diagram of the relationship between the positions of the resilient release wall and the snowload spring in an embodiment of the invention;
FIG. 15 is a diagram of the relationship between the pawl and the release wall spring when the deadbolt is in the semi-locked state;
Fig. 16 is a circuit diagram in an embodiment of the invention.
Detailed Description
In order to make the technical means, creation characteristics, achievement purposes and effects achieved by the invention easy to understand, the following embodiments specifically describe a novel electric unlocking tail door lock according to the invention with reference to the accompanying drawings.
The novel electric unlocking tail door lock 100 is installed on a tail door of an automobile and is matched with a lock column to lock and unlock the tail door of the automobile.
As shown in fig. 1-7, a novel electric unlocking tail door lock 100 comprises a shell 101, a lock tongue 102, a lock tongue reset spring 103, a pawl 104, a pawl reset spring 105, a pawl signal deflector 106, a pawl signal deflector reset spring 107, a micro switch 108, an electric driving unit, a manual driving unit and a circuit unit 109.
The housing 101 is provided with a plug portion 14. In the present embodiment, the housing 101 includes the case 11, the upper cover 12, and the lower cover 13, and the plug portion includes the upper case 131 and the lower case 132, the upper case 131 being integrally formed with the upper cover 12, and the lower case 132 being integrally formed with the case 11.
The bolt 102 is rotatably mounted on the housing 101, specifically, is rotatably mounted on the housing 11, a first rotating shaft is arranged on the housing 11, the first rotating shaft is a rivet, the rivet is riveted on the housing 11, and the bolt 102 is sleeved on the first rotating shaft. In the installation process, the bolt 102 is sleeved on the rivet, and then the lower cover plate 13 is installed. The tongue 102 is provided with full locking engagement teeth 1021 and half locking engagement teeth 1022.
One end of the tongue return spring 103 is attached to the tongue 102, and the other end is attached to the housing 11. In this embodiment, the latch return spring 103 is a torsion spring, and the spring sleeve is sleeved on the first rotating shaft. The spring bolt return spring 103 is forced to rotate on the spring bolt 102, and the spring bolt 102 is restored to an initial state after the stress is eliminated, namely a state before the stress is rotated. Specifically, the tongue return spring 103 is a torsion spring.
The pawl 104 is rotatably mounted on the housing 101, specifically, on the housing 11, a second rotating shaft is provided on the housing 11, the second rotating shaft is a rivet, the rivet is riveted on the housing 11, and the pawl 104 is sleeved on the second rotating shaft. In the installation process, the pawl 104 is sleeved on the rivet, and then the lower cover plate 13 is installed. Pawl 104 cooperates with locking bolt 102 to fully lock, half lock, or open locking bolt 102. The pawl 104 is engaged with the half-locking engagement teeth 1022, the lock tongue is in a half-locking state, the pawl 104 is engaged with the full-locking engagement teeth 1021, and the lock tongue is in a full-locking state.
A pawl return spring 105 is mounted on the pawl 104 at one end and on the housing 11 at the other end. The pawl return spring 105 returns the pawl 104 to the original state after the pawl 104 is forced to rotate and after the force is lost, i.e., the state before the force is forced to rotate. Specifically, the pawl return spring 105 is a torsion spring.
In this embodiment, the novel electric unlocking tail door lock 100 further includes a pawl buffer block 110, the pawl buffer block 110 is mounted on the housing 11, the pawl buffer block 110 is located on a side of the pawl 104 facing away from the latch tongue 102, and the pawl buffer block plays a buffering role on the pawl 104 after the pawl 104 rotates. Specifically, the pawl buffer block 110 is made of an elastic material.
As shown in fig. 8, the latch bolt 102 and the pawl 104 constitute a ratchet mechanism, and the latch bolt return spring 103 and the pawl return spring 105 keep the latch bolt 102 and the pawl 104 in contact all the time.
As shown in fig. 2, 10 and 11, the pawl signal lever 106 is rotatably mounted on the housing 11 and is coaxial with the pawl 104, the pawl signal lever 106 is located between the pawl 104 and the housing 11, the pawl signal lever 106 is engaged with the pawl 104, and the pawl 104 can push the pawl signal lever to rotate.
One end of the pawl signal lever return spring 107 is mounted to the housing 11 and the other end is mounted to the pawl signal lever 106. After the pawl signal lever 106 is pushed to rotate by the pawl 104, the pawl 104 is reset by the pawl reset spring 105, and the pawl signal lever 106 is restored to the original state, that is, the state before being pushed to rotate by the pawl 104 by the pawl signal lever return spring 107. Specifically, the pawl signal lever return spring 107 is a torsion spring. The pawl signal lever return spring 107 maintains the pawl signal lever 106 in contact with the deadbolt 104 at all times. Specifically, the locking bolt 102 is in meshing contact when in the fully locked state.
The micro switch 108 is mounted on the housing 11, and when the pawl 104 pushes the pawl signal shifting lever 106 to rotate, the pawl 104 does not contact the micro switch 108, and the pawl signal shifting lever 106 can compress or release the micro switch 108. Thus, when the locking bolt 102 is in different states (locked or unlocked, locking includes full locking and half locking), the micro-switch 108 is in different on-off states.
In this embodiment, as shown in fig. 5 and 13, a push plate 1061 and a pressing plate 1062 are disposed on a side of the pawl signal lever 106 facing the pawl 104, the push plate 1061 is located on a side of the pawl signal lever 106 away from the lock tongue 102, the pressing plate 1062 is located on an end portion of the pawl signal lever 106 facing one end of the micro switch 108, and the pressing plate 1062 and the micro switch 108 are in the same rotation plane. The pawl 104 has a stepped feature, with an upper step toward the end of the worm wheel 23 and a lower step at the end mounted on the housing 11. As shown in fig. 11, after the pawl 104 and the pawl signal lever 106 are mounted, the pressing plate 106 has a height lower than the bottom side of the upper step.
In this embodiment, as shown in fig. 5 and 13, the full locking teeth 1021 are slots that are completely transparent in the thickness direction of the tongue 102, and the half locking teeth 1022 are blind slots that are not transparent in the thickness direction of the tongue 102. During the time that the bolt 102 is from fully latched to open, the pawl signal lever 106 compresses or releases the microswitch 108 before rotating to the half-latched position. In this embodiment, when the latch 102 is in the fully locked state, the micro switch 108 is not compressed, and in the process from full locking to opening of the latch 102, the pawl signal lever 106 compresses the micro switch 108 before rotating to the half-locking position, specifically, when the latch 102 is in the fully locked state, the micro switch 108 is not compressed, and when the latch 102 is seen in the direction of fig. 3, the left side of the pressing plate 1062 contacts the micro switch 108, and after the pawl signal lever 106 rotates, the pressing plate 1062 compresses the micro switch 108. When the tongue 102 is in the half-lock position, the pawl 104 engages the half-lock engagement teeth 1022, and as shown in fig. 13, the pawl signal lever 106 contacts the non-permeable portion of the half-lock engagement teeth 1022 and does not engage the half-lock engagement teeth 1022. As shown in fig. 12, when the lock tongue 102 is in the half-locking position, the pawl 104 and the pawl signal lever 106 are separated, that is, when the pawl 104 pushes the pawl signal lever 106 to rotate to the half-locking position, if the force of the pawl 104 is over, the pawl 104 is engaged with the half-locking engagement teeth 1022 under the elastic force of the pawl return spring 105, and the pawl signal lever 106 cannot move. Since the latch bolt 102 is fully latched-half latched-open, sometimes in a half latched state, and the microswitch 108 has been compressed before the pawl 104 is rotated to the half latched position, the half latch engagement teeth 1022 are configured as blind tooth slots, so that the pawl signal lever 106 does not release the microswitch 108 due to engagement with the half latch engagement teeth 1022 when the latch bolt 102 is in the half latched position, and signal flipping occurs in the half latched state.
The electric driving unit is used for automatically driving the opening or locking of the lock tongue. The electric drive unit includes a motor 21, a worm 22, a worm wheel 23, and a worm wheel return spring 24. The motor 21 is mounted on the housing 101, the worm 22 is fixed on a motor shaft of the motor 21, the worm wheel 23 is rotatably mounted on the housing 11 and engaged with the worm 22, one end of the worm wheel return spring 24 is mounted on the housing 11, and the other end is mounted on the worm wheel 23, specifically, the worm wheel return spring 24 is a torsion spring. The worm wheel 23 is provided with a pushing block 231, one end of the pawl 104 faces the worm wheel 23 and is matched with the pushing block 231, and when the worm wheel 23 rotates, the pushing block 231 can push the pawl 104 to rotate.
In this embodiment, the electric drive unit further includes a worm gear limit buffer block 25. The worm wheel limit buffer block 25 is installed on the housing 11, at least a portion of which is located within a rotation radius of the push block 231, for limiting an angle of rotation of the worm wheel 23 and buffering the worm wheel 23 after the worm wheel 23 rotates to a maximum angle. Specifically, the worm wheel limit buffer block 25 is made of an elastic material.
The manual driving unit is used for manually driving the opening or locking of the lock tongue. As shown in fig. 8 and 9, the manual driving unit includes an unlocking transitional lever 31, an unlocking transitional lever return spring 32, and an unlocking lever 33.
The unlocking transition pull rod 31 is rotatably arranged on the shell 11, and the unlocking transition pull rod 31 is matched with the pawl 104 and can push the pawl 104 to rotate. In this embodiment, as shown in fig. 8, a second groove 1041 is provided on a side of the pawl 104 facing away from the pawl signal lever 106. As shown in fig. 9, the unlocking transition lever 31 is provided with a first protrusion 311, and the first protrusion 311 extends into the second groove 1041.
One end of the unlocking transition pull rod return spring 32 is mounted on the housing 11, and the other end is mounted on the unlocking transition pull rod 31, specifically, the unlocking transition pull rod return spring 32 is a torsion spring. The unlocking pull rod 33 is fixed on the unlocking transition pull rod 31, the unlocking pull rod 33 and the unlocking transition pull rod 31 are respectively located on two sides of the cover plate 12, the unlocking transition pull rod 31 is located in the shell 101, the unlocking pull rod 33 is located outside the shell 101, the unlocking pull rod 33 is rotated, the unlocking pull rod 33 drives the unlocking transition pull rod 31 to rotate, and the unlocking transition pull rod 31 drives the pawl 104 to rotate.
In this embodiment, as shown in fig. 8, 10 and 11, a boss 1042 is provided on a side of the pawl 104 facing the tongue 102. As shown in fig. 2, 14 and 15, the housing 11 is provided with an elastic release wall 14, and the elastic release wall 14 cooperates with the boss 1042 to realize a snow load function of the novel electric unlocking tail gate lock. One end of the elastic release wall 14 is fixed on the shell 11, the other end is suspended, the suspended end of the elastic release wall 14 is matched with the boss 1042, and the elastic release wall 14 can swing. The latch tongue 102 is provided with a second protrusion 1023. The position of the second protrusion 1023 on the lock tongue 102 and the shape of the elastic release wall 14 are such that when the lock tongue 102 is in the half-lock position and the pawl 104 is disengaged from the half-lock engagement teeth 1022, the free end of the elastic release wall 14 contacts a side wall of the boss 1042 facing the free end of the elastic release wall 14, and when the lock tongue 102 is moved from the half-lock position to the open position, the second protrusion 1023 can urge the elastic release wall 14 to swing in the direction of the worm wheel 23. When the latch 102 is in the fully locked state as viewed in the direction of fig. 2, the free end of the elastic release wall 14 is located above the boss 1042, the boss 1042 is slowly moved out from below the elastic release wall 14 when the latch 102 is moved from the fully locked state to the open state, and when the half-lock position is reached and the pawl 104 is disengaged from the half-lock engagement teeth 1022, as shown in fig. 15, the free end of the elastic release wall 14 contacts a side wall of the boss 1042 facing the free end of the elastic release wall 14, and then the second protrusion 1023 pushes the elastic release wall 14 to swing toward the worm wheel 23, and the boss 1042 is away from the elastic release wall 14. When the latch tongue 102 is in the open position, the elastic release wall 14 swings to the maximum position and is blocked from returning by the second protrusion 1023, so that the pawl 104 can return when the latch tongue 102 is opened to the full lock state. When the lock tongue 102 is opened to the full lock, the second protrusion 1023 rotates, the limitation on the elastic release wall 14 is slowly released, the elastic release wall 14 swings towards the direction of the lock tongue 102 to return, and the pawl 104 and the elastic release wall 14 are synchronously matched in the return process, so that the boss 1042 is positioned below the suspended end of the elastic release wall 14 after the return, and the original full lock state is restored. When the tail gate has snow or other heavy objects, the pawl 104 is pulled out during electric or manual unlocking, but the lock tongue 102 does not return, at this time, because the pushing and blocking effects of the second protrusion 1023 are not provided, the boss 1042 slightly swings the elastic release wall 14 and returns when the pawl 104 moves out from below the elastic release wall 14 after rotating, so that the pawl 104 is blocked by the elastic release wall 14 and cannot return, and at this time, the door can be directly opened manually without secondary unlocking.
Specifically, the novel electric unlocking tail door lock further comprises a snow spring 112, the snow spring 112 is mounted on the shell 11, specifically, the shell 11 is provided with a rotating shaft, the snow spring 112 is sleeved on the rotating shaft, and the rotating shaft is used for limiting the position of the snow spring 112. One end of the snow spring 112 is limited by the housing 11, the other end is limited by the side of the elastic release wall 14 facing the worm wheel 23, and in the process of opening the lock tongue 102, after the elastic release wall 14 swings toward the worm wheel 23, the pawl 104 is disengaged from the elastic release wall 14, and the snow spring 112 assists the elastic release wall 14 to swing back to the initial position.
The circuit unit 109 includes a power supply circuit and a signal output circuit. As shown in fig. 16, a power supply circuit is mounted on the housing 101, and the power supply circuit is connected to the motor 21. Specifically, the motor 21 includes a motor body, a capacitor and a resistance wire connected in series with the motor body, and a loop thereof. A signal output circuit is mounted on the housing 101, and the signal output circuit is connected to the micro switch 108. The electrical pins of the power supply circuit and the signal output circuit are located in the plug section 14 and form a plug for connection with an external device. After the plug is connected with external equipment, the opening and closing information of the lock tongue 102 can be transmitted to an external system, and the power driving motor 10 can also be obtained to work. The signal output circuit defines different feedback signal types according to different car electric appliance platforms, for example, a micro-switch closed output signal is defined as '1', and a micro-switch open output signal is defined as '0'. The driver can know whether the tail gate lock is in an open state or a locked state (including full lock and half lock) according to the number 1 or 0 fed back.
In this embodiment, the power supply circuit is two first conductive metal sheets, one end of each of which is connected to the motor 21, and the other end is an electrical pin (a/C). The signal output circuit is two second conductive metal sheets, one end of each second conductive metal sheet is connected with the micro switch 108, and the other end is an electrical pin (B/D).
In this embodiment, the novel electric unlocking tail door lock further includes a latch buffer block 111, and the latch buffer block 111 is installed at an opening portion of the housing 101, and plays a role in buffering the housing 101 when the external force drives the latch bolt 102 to close. Specifically, the latch buffer 111 is made of an elastic material.
The working process comprises the following steps:
the bolt is from the locking state to the unlocking state:
When the lock tongue is in the locking state, the worm wheel return spring 24 is in a free state, and the unlocking transition pull rod return spring 32 is in a free state. The pawl return spring 105 and the pawl signal lever return spring 107 are in a minimum stressed state, the dead bolt return spring 103 is in a maximum stressed state, the microswitch 108 is not compressed, and the microswitch is in an off state.
And in the manual unlocking process, when the unlocking pull rod 33 is rotated anticlockwise by a key or a finger as seen in the direction of fig. 2, the unlocking pull rod 33 drives the unlocking transition pull rod 31 to rotate anticlockwise, the unlocking transition pull rod 31 drives the pawl 104 to rotate clockwise, so that the lock tongue 102 is released, unlocking is realized, and the pawl 104 rotates clockwise to drive the pawl signal deflector rod 106 to rotate clockwise. In the unlocking process, the pawl 104 rotates clockwise to a certain angle, and then is meshed with the half-locking meshing teeth 1022 to enter a half-locking state, and the unlocking transition pull rod 31 continues to stir the pawl 104 to rotate clockwise to enter a full-locking state. Before the locking state is entered, the pawl signal shifting lever 106 compresses the micro switch 108, the micro switch 108 is closed, the signal output circuit is conducted, signal overturning is achieved, and accordingly feedback signals of the lock body opening state are output.
When the external force driving the unlocking pull rod 33 to rotate disappears, the unlocking transition pull rod 31 rotates clockwise to reset under the restoring force of the unlocking transition pull rod reset spring 32, and the unlocking pull rod 33 is driven by the unlocking transition pull rod 31 to reset. Pawl 104 and pawl signal lever 106 are not reset under the constraint of locking tab 102, and pawl return spring 105 and pawl signal lever return spring 107 are in a maximum force state.
In the automatic unlocking process, the vehicle body control unit sends a corresponding pulse signal to the power circuit to drive the motor 21 to work, the motor 21 drives the worm 22 to rotate, the worm 22 drives the worm wheel 23 to rotate anticlockwise when seen in the direction of fig. 2, the pushing block 231 rotates anticlockwise along with the worm wheel 23, the pushing block 231 pushes the pawl 104 to rotate clockwise, so that the lock tongue 102 is released, unlocking is realized, and the pawl 104 rotates clockwise to drive the pawl signal deflector rod 106 to rotate clockwise. In the unlocking process, the pawl 104 rotates clockwise to a certain angle, and then is meshed with the half-locking meshing teeth 1022 to enter a half-locking state, and the unlocking transition pull rod 31 continues to stir the pawl 104 to rotate clockwise to enter a full-locking state. Before the locking state is entered, the pawl signal shifting lever 106 compresses the micro switch 108, the micro switch 108 is closed, the signal output circuit is conducted, signal overturning is achieved, and accordingly feedback signals of the lock body opening state are output.
When the motor 21 stops operating, the worm wheel 23 is rotated clockwise to return under the restoring force of the worm wheel return spring 24, as seen in the direction of fig. 2.
The bolt is from the unlocking state to the locking state:
when the lock tongue is in an unlocking state, the pawl return spring 105 and the pawl signal deflector rod return spring 107 are in a state with maximum stress, the lock tongue return spring 103 is in a free state, and the micro switch 108 is compressed and is in a conducting state.
The lock tongue 102 rotates to lock under the action of external force, and when the lock tongue 102 is seen in the direction of fig. 3, the lock tongue 102 rotates clockwise to be matched with the pawl 104, and sequentially enters into a half locking state and a full locking state, and in the process of rotating the lock tongue 102 clockwise, the pawl return spring 105 and the pawl signal shifting lever return spring 107 gradually release energy, and the stress is gradually reduced. When the bolt 102 rotates to the half locking position, the micro switch 108 is still closed, and when the bolt 102 rotates from the half locking position to the full locking position, the micro switch 108 is disconnected, the signal output circuit is disconnected, and signal overturning is realized, so that a feedback signal of the locking state of the lock body is output. When the lock tongue 102 rotates to the full locking position, the pawl 104 and the pawl signal lever 106 are engaged with the full locking engagement tooth 1021 under the restoring force of the pawl return spring 105 and the pawl signal lever return spring 107, and the lock tongue is in the full locking position.
The micro-switch 108 is opened and closed, corresponding to the locked (including half-locked and full-locked) and open states of the tongue. The on-off state of the signal output circuit is changed through the opening and closing of the micro switch 108, so that the signal conversion is realized, the on-off state of the lock body can be known according to different signals, and the signal feedback function of the lock tongue on-off state is realized.
The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.
Claims (10)
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| CN202210890610.8A CN115162864B (en) | 2022-07-27 | 2022-07-27 | Novel electric opening tail door lock |
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| CN116149231B (en) * | 2023-03-01 | 2025-07-25 | 上海恩坦华汽车门系统有限公司 | Practical electric control system for detecting service life of electric actuation automobile door lock |
| CN116492190A (en) * | 2023-04-03 | 2023-07-28 | 山东康泰实业有限公司 | An easy-to-use massage chair |
| CN118309323B (en) * | 2024-03-29 | 2025-09-16 | 上海恩井汽车科技有限公司 | Lock system |
| CN118933469B (en) * | 2024-07-30 | 2025-09-16 | 上海驰助汽车零部件有限公司 | An integrated electric front cover lock with double pull and double electrolysis |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191078A (en) * | 2017-07-07 | 2017-09-22 | 上海恩井汽车科技有限公司 | A kind of motorcar electric adhesive electric opening rear door lock |
| CN108678575A (en) * | 2018-06-04 | 2018-10-19 | 伟速达（中国）汽车安全系统有限公司 | Electronic actuation lock containing emergency unlocking device |
| CN217812923U (en) * | 2022-07-27 | 2022-11-15 | 上海恩坦华汽车门系统有限公司 | A New Electric Tailgate Lock |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19841670C2 (en) * | 1998-09-11 | 2001-01-11 | Mannesmann Vdo Ag | Locking device |
| CN202745536U (en) * | 2012-07-02 | 2013-02-20 | 上海恩坦华汽车门系统有限公司 | Vehicle electrically-controlled integrative tail gate actuator with automatic returning mechanism |
-
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- 2022-07-27 CN CN202210890610.8A patent/CN115162864B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191078A (en) * | 2017-07-07 | 2017-09-22 | 上海恩井汽车科技有限公司 | A kind of motorcar electric adhesive electric opening rear door lock |
| CN108678575A (en) * | 2018-06-04 | 2018-10-19 | 伟速达（中国）汽车安全系统有限公司 | Electronic actuation lock containing emergency unlocking device |
| CN217812923U (en) * | 2022-07-27 | 2022-11-15 | 上海恩坦华汽车门系统有限公司 | A New Electric Tailgate Lock |
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