CN208502485U - Electronic actuation latch mechanism with three-level lock-bit - Google Patents

Abstract

The utility model belongs to automobile door lock technical field, more particularly to a kind of electronic actuation latch mechanism with three-level lock-bit, including bottom plate and the latch hook detent system being arranged on bottom plate, latch hook detent system includes latch hook, latch hook elastic element, pawl, pawl spring element and detection device, latch hook and pawl are rotatably arranged on bottom plate, successively opening up along its rotation direction there are three lock-bit on latch hook is respectively level-one lock-bit, second level lock-bit and three-level lock-bit, the card convex of one with lock-bit cooperation are outward extended on pawl, when latch hook, which rotates, to be latched, card convex successively slips over three-level lock-bit and second level lock-bit and is caught in level-one lock-bit, latch hook elastic element and pawl spring element are respectively that latch hook and pawl provide screen resilience, enable card convex locking on different lock-bits；Detection device is used to detect the lockup state of latch hook, and detection device is connect with interior central control system signal, completes locking and unlocking motion to control electronic execution system drive latch hook and pawl rotation.

Description

Electronic actuation latch mechanism with three-level lock-bit

Technical field

The utility model belongs to automobile door lock technical field more particularly to a kind of electronic actuation lock machine with three-level lock-bit Structure.

Background technique

With the development of automobile industry, passenger is also being gradually increasing car comfort and operational requirements, at present Car trunk lock system is component part important in body of a motor car system unit, for car trunk lock system, passenger It is also higher and higher for the attention rate of the opening and closing of hommization and reliability.

Car trunk lock system currently on the market is divided into electronic actuation lock with low with lock system.Electronic actuation lock system is logical Cross key signal automatically control lock for rear box unlock and blocking function, do not need be manually operated so that lock for rear box unlock and locking, but Only two-stage lock-bit, lock are fixed on vehicle body, and the latch hook of lock for rear box is caught in the function that locking is completed in lock, and lock for rear box is in tail In door closing process, lock for rear box feedback signal when entering second level lock-bit carries out self-priming closing operation, locks when into level-one lock-bit Tail-gate, for car trunk during the shutdown process due at present only have two-stage lock-bit, from second level lock-bit to level-one lock-bit stroke compared with Short, tail-gate system itself needs that biggish sealing force is overcome just lock for rear box to be made to start self-priming closing operation when entering second level lock-bit, Components other for tail-gate system need to overcome biggish sealing force；In addition tail-gate system breaks down stopping in latching process Work, lock for rear box not yet enters second level lock-bit, automatic pick operation failure, and tail-gate is easy to flick, and except inconvenient, there is also peaces Full hidden danger；And after vehicle body severe jolt or clashed causes latch hook to pop up a level and second level lock-bit, without it Its lock-bit locking lives latch hook, and latch hook is detached from lock automobile tail gate and flicks, and there are security risks.

Utility model content

To solve the above problems existing in the prior art, the utility model provides a kind of electronic actuation lock with three-level lock-bit Mechanism.

In order to solve the above technical problems, technical solution used by the utility model is as follows, a kind of electricity with three-level lock-bit Dynamic to be attracted latch mechanism, including bottom plate and the latch hook detent system being arranged on bottom plate, the latch hook detent system includes latch hook, lock Hook elastic element, pawl, pawl spring element and detection device, the latch hook and pawl are rotatably arranged on bottom plate, described Successively opening up along its rotation direction there are three lock-bit on latch hook is respectively level-one lock-bit, second level lock-bit and three-level lock-bit, the spine The card convex of one with lock-bit cooperation are outward extended on pawl, when the latch hook, which rotates, to be latched, the card convex successively slips over three-level Lock-bit and second level lock-bit are simultaneously caught in level-one lock-bit, and the latch hook elastic element and pawl spring element are respectively that latch hook and pawl mention For screen resilience, enable card convex locking on different lock-bits；

The detection device is used to detect the lockup state of latch hook, and the detection device and interior central control system signal connect It connects, completes locking and unlocking motion to control electronic execution system drive latch hook and pawl rotation.

Preferably, the detection device includes triggering rod, triggering rod elastic element, the first microswitch and the second fine motion Switch, the latch hook are in rotational direction provided with curved guiding surface, and one end of the triggering rod is rotatably arranged on pawl, another End has contact, and the triggering rod elastic element provides screen resilience for triggering rod, contacts contact with curved guiding surface always, work as card When convex clip enters three-level lock-bit, the first microswitch is disengaged with triggering rod, and the second microswitch is kept in contact with pawl, works as card When convex clip enters second level lock-bit, the holding of the first microswitch is not contacted with triggering rod, and the second microswitch is kept in contact with pawl, when When card convex is caught in level-one lock-bit, the holding of the first microswitch is not contacted with triggering rod, and the second microswitch is disengaged with pawl. Changed by the contact condition of the variation of the contact condition of the first microswitch and triggering rod and the second microswitch and pawl, It detects the lockup state of latch hook and signal is passed into central control system, it is electronic when locking to control electronic execution system acting Executing the rotation of system drive latch hook makes card convex be caught in lock-bit completion block action, and when unlocking, electronic execution system drive pawl turns Dynamic that card convex is made to be detached from lock-bit, the sealing force of automobile tail gate makes latch hook be detached from lock, and automobile tail gate, which flicks, completes unlocking action, and first Microswitch and the second jogging switches measurement latch hook lockup state, working principle is simple and reliable, and detection is accurate, easily controllable.

Further, there is groove on the triggering rod, there is unfilled corner on the pawl, when the first microswitch and touch When bar does not contact, the first microswitch is located at groove, when the second microswitch is not contacted with pawl, the second microswitch position At unfilled corner.When card convex is caught in three-level lock-bit, the first microswitch enters groove, and the second microswitch connects with pawl holding Touching, when card convex is caught in second level lock-bit, the first microswitch remains at groove, and the second microswitch connects with pawl holding Touching, when card convex is caught in level-one lock-bit, the first microswitch remains at groove, and the second microswitch enters at unfilled corner, knot Structure is simply ingenious, at low cost, realizes contact condition variation and the second microswitch and the spine of the first microswitch and triggering rod The contact condition of pawl changes.

Further, the triggering rod is extended with limited post close to one end of contact, offers and limits on the bottom plate The limit hole that the motion profile of column matches, the limited post are inserted into limit hole, and the edge of the latch hook extends outwardly limited Position plate, the triggering rod close to contact one end between bottom plate and limit plate.Triggering rod is moved with pawl rotation, limit The axial direction that the circular runout that limitation triggering rod in position hole is rotated in latch hook, bottom plate and limit plate cooperation limitation triggering rod are rotated in latch hook Bounce, while under the rebound effect of triggering rod elastic element, so that contact contacts always with curved guiding surface without shaking, mention The contact condition of high first microswitch and triggering rod changes the contact of accuracy and sensitivity and the second microswitch with pawl State change accuracy and sensitivity improves the performance of the electronic actuation latch mechanism.

Further, the latch hook elastic element, pawl spring element and triggering rod elastic element select torsional spring.It is convenient Installation is fixed, and reduces cost, one end of latch hook elastic element is fixed on bottom plate, and the other end is fixed on latch hook, pawl bullet One end of property element is fixed on bottom plate, and the other end is fixed on pawl, and one end of triggering rod elastic element is fixed on bottom plate On, the other end is fixed on triggering rod.

Preferably, being provided with the lock for being caught in when latch hook locking on the vehicle body, it is provided with and locks on the latch hook Detain corresponding buffer stopper.Buffer stopper is arranged on latch hook as latch hook rotates together, and when latch hook, which rotates, to be latched, latches and slow Block contact is rushed, reduces and generates the sound because of shock between lock and latch hook, work as a buffer.

Preferably, being provided with shell on the bottom plate, the shell is for covering latch hook detent system.

Preferably, being fixed with latch hook rivet and pawl rivet between the bottom plate and shell, the latch hook rotation is arranged On latch hook rivet, the pawl rotation is set in pawl rivet.

The utility model has the advantages that

1), the electronic actuation latch mechanism with three-level lock-bit of the utility model, in latching process, card convex successively slips over lock Three-level lock-bit and second level lock-bit on hook and after being caught in level-one lock-bit, complete the locking of electronic actuation latch mechanism, automobile tail gate Closing need to overcome biggish sealing force, or when electronic actuation latch mechanism failure stops working in latching process, card convex can block Enter level-one lock-bit, second level lock-bit or the three-level lock-bit of latch hook and make electronic actuation latch mechanism locking, prevents automobile tail gate from bouncing, it should Electronic actuation latch mechanism is more safe and reliable；

2), the electronic actuation latch mechanism with three-level lock-bit of the utility model can be effective compared with existing second level lock-bit Feedback three-level lock-bit signal, it is simple and reliable, it is more humanized to automobile tail gate latching process and passenger operation；

3), the electronic actuation latch mechanism with three-level lock-bit of the utility model has three-level lockup state, second level locking shape State and full lock status, smart structural design, so that the intensity of electronic actuation latch mechanism is improved, automobile tail gate is more easier to close It closes, when relatively shaking or automobile are hit suddenly in vehicle traveling process, three lockup states of the electronic actuation latch mechanism Security reliability is improved, the probability that automobile tail gate bounces is reduced, reduces accident rate.

Detailed description of the invention

Fig. 1 is the schematic diagram of internal structure of the standard-sized sheet lock status of the utility model；

The schematic rear view of latch hook detent system when Fig. 2 is standard-sized sheet lock status in Fig. 1；

Fig. 3 is the schematic diagram of internal structure of the three-level lock-bit state of the utility model；

Fig. 4 is the schematic diagram of internal structure that the utility model leaves that three-level lock-bit is prepared to enter into second level lock-bit state；

Fig. 5 is the schematic diagram of internal structure of the second level lock-bit state of the utility model；

Fig. 6 is the schematic diagram of internal structure of the full lock-bit state (level-one lock-bit state) of the utility model；

1, bottom plate in figure, 1-1, limit hole, 2, latch hook, 2-1, level-one lock-bit, 2-2, second level lock-bit, 2-3, three-level lock-bit, 2-4, curved guiding surface, 2-5, limit plate, 2-6, grab, 3, latch hook elastic element, 4, pawl, 4-1, card convex, 4-2, unfilled corner, 5, spine Pawl elastic element, 6, triggering rod, 6-1, contact, 6-2, groove, 6-3, limited post, 7, triggering rod elastic element, 8, buffer stopper, 9, Latch hook rivet, 10, pawl rivet, 11-1, the first microswitch, 11-2, the second microswitch, 12, lock.

Specific embodiment

Embodiment

As shown in figs. 1 to 6, a kind of electronic actuation latch mechanism with three-level lock-bit, including bottom plate 1 and setting are on bottom plate 1 Latch hook detent system, shell (showing in figure) is provided on the bottom plate 1, the shell is for covering latch hook pawl system System, the latch hook detent system include latch hook 2, latch hook elastic element 3, pawl 4, pawl spring element 5 and detection device, described Latch hook 2 and pawl 4 are rotatably arranged on bottom plate 1, on the latch hook 2 along its rotation direction successively open up there are three lock-bit distinguish For level-one lock-bit 2-1, second level lock-bit 2-2 and three-level lock-bit 2-3, one and lock-bit cooperation are outward extended on the pawl 4 Card convex 4-1, when the latch hook 2, which rotates, to be latched, the card convex 4-1 successively slips over three-level lock-bit 2-3 and second level lock-bit 2-2 and blocks Enter level-one lock-bit 2-1, the latch hook elastic element 3 and pawl spring element 5 are respectively that latch hook 2 and pawl 4 provide screen resilience, are made Card convex 4-1 can on different lock-bits locking；The detection device is used to detect the lockup state of latch hook 2, the detection dress It sets and is connect with interior central control system signal, complete locking reconciliation to control electronic execution system drive latch hook 2 and the rotation of pawl 4 Lock movement；

The detection device includes that triggering rod 6, triggering rod elastic element 7, the first microswitch 11-1 and the second fine motion are opened 11-2 is closed, the latch hook 2 is in rotational direction provided with curved guiding surface 2-4, and one end of pawl 4 is provided with round card slot, triggering rod 6 One end be rotatably installed in round card slot, the other end of triggering rod 6 has contact 6-1, and the triggering rod elastic element 7 is touching Lever 6 provides screen resilience, contacts contact 6-1 with curved guiding surface 2-4 always, in order to prevent because triggering rod 6 shakes, reduces by first The detection sensitivity of microswitch 11-1, the triggering rod 6 are extended with limited post 6-3, the bottom plate close to one end of contact 6-1 It is offered on 1 in the limit hole 1-1, the limited post 6-3 insertion limit hole 1-1 matched with the motion profile of limited post 6-3, The edge of the latch hook 2 is outward extended with limit plate 2-5, and the triggering rod 6 is located at bottom plate 1 and limit close to one end of contact 6-1 Between the plate 2-5 of position.When card convex 4-1 is caught in three-level lock-bit 2-3, the first microswitch 11-1 is disengaged with triggering rod 6, and second Microswitch 11-2 is kept in contact with pawl 4, when card convex 4-1 is caught in second level lock-bit 2-2, the first microswitch 11-1 keep with Triggering rod 6 does not contact, and the second microswitch 11-2 is kept in contact with pawl 4, when card convex 4-1 is caught in level-one lock-bit 2-1, first Microswitch 11-1 holding is not contacted with triggering rod 6, and the second microswitch 11-2 is disengaged with pawl 4.On the triggering rod 6 With groove 6-2, there is unfilled corner 4-2 on the pawl 4, when the first microswitch 11-1 is not contacted with triggering rod 6, first is micro- Dynamic switch 11-1 is located at groove 6-2, when the second microswitch 11-2 is not contacted with pawl 4, the second microswitch 11-2 At unfilled corner 4-2.

First microswitch 11-1 and the second microswitch 11-2 is connect with interior central control system signal, described electronic Execution system includes latch hook motor and pawl motor, and the output end of latch hook motor and pawl motor is passed with latch hook 2 and pawl 4 respectively Dynamic connection, the latch hook motor and pawl motor are connect with interior central control system signal, the electronic execution system when locking Drive the rotation of latch hook 2 that card convex 4-1 is made to be caught in lock-bit according to the signal of the first microswitch 11-1 and the second microswitch 11-2 complete At block action, when unlocking, electronic execution system is driven according to the signal of the first microswitch 11-1 and the second microswitch 11-2 The rotation of pawl 4 makes card convex 4-1 be detached from lock-bit, and the sealing force of automobile tail gate makes latch hook 2 be detached from lock 12, and automobile tail gate has flicked At unlocking action.

It fixes in order to facilitate the installation of, reduces cost, the latch hook elastic element 3, pawl spring element 5 and triggering rod elasticity Element 7 selects torsional spring, and one end of latch hook elastic element 3 is fixed on bottom plate 1, and the other end is fixed on latch hook 2, pawl bullet One end of property element 5 is fixed on bottom plate 1, and the other end is fixed on pawl 4, and one end of triggering rod elastic element 7 is fixed on On bottom plate 1, the other end is fixed on triggering rod 6.

For the human oriented design of the electronic actuation latch mechanism, buffer stopper 8, the material of buffer stopper 8 are provided on the latch hook 2 Matter is flexible elastic material, and buffer stopper 8 is rotated together with latch hook 2, and 2 front end of latch hook has grab 2-6, when latch hook 2 is latched Grab 2-6 is caught in the lock 12 being arranged on vehicle body, latches 12 at this time and contacts with buffer stopper 8, reduces between lock 12 and latch hook 2 The sound is generated because of shock, is worked as a buffer.Latch hook rivet 9 and pawl rivet 10, institute are fixed between the bottom plate 1 and shell It states the rotation of latch hook 2 to be set on latch hook rivet 9, the rotation of pawl 4 is set in pawl rivet 10.

Working principle is as follows:

Latching process: successively pass through following standard-sized sheet lock status, three-level lock-bit state, second level lock-bit state and full lock-bit state Complete the locking of automobile tail gate；

1), standard-sized sheet lock status: actuation latch mechanism electronic first is in standard-sized sheet lock status and locks at this time as depicted in figs. 1 and 2 Hook 2 is in 12 states of lock that are detached from, and card convex 4-1, which is in, is detached from lock-bit state, and automobile tail gate is in the open state, and the first fine motion is opened It closes 11-1 and triggering rod 6 contacts trigger signal, the second microswitch 11-2 and pawl 4 contact trigger signal, feed back to middle control system System shows that electronic actuation latch mechanism is in standard-sized sheet lock status；

2), three-level lock-bit state: automobile tail gate starts to be closed, and latch hook 2 is with automobile tail gate closing motion to three-level lock-bit 2-3 state, as shown in figure 3, card convex 4-1 is caught in three-level lock-bit 2-3 at this time, the first microswitch 11-1 enter at groove 6-2 with Triggering rod 6 disconnects contact not trigger signal, and the second microswitch 11-2 and pawl 4 continue to be kept in contact trigger signal, feed back to Central control system shows that latch hook 2 is in three-level lock-bit 2-3 state, and central control system starts latch hook motor, 2 turns of latch hook motor driven latch hook It is dynamic to enter automatic blocking process；

3), second level lock-bit state: when latch hook 2, which leaves three-level lock-bit 2-3, is prepared to enter into second level lock-bit 2-2, such as Fig. 4 institute Show, triggering rod 6 is with pawl 4 and curved guiding surface 2-4 cooperative movement, and the first microswitch 11-1 is remained at groove 6-2 at this time Not trigger signal is contacted with the disconnection of triggering rod 6, the second microswitch 11-2 and pawl 4 continue to be kept in contact trigger signal, feed back Show that latch hook 2 not yet completes fully closed lock status to central control system, latch hook motor continues that latch hook 2 is driven to rotate, as shown in figure 5, working as When card convex 4-1 is caught in second level lock-bit 2-2, the first microswitch 11-1 is remained at groove 6-2 and is contacted not with the disconnection of triggering rod 6 Trigger signal, the second microswitch 11-2 and pawl 4 are kept in contact trigger signal, feed back to central control system and show latch hook 2 not yet Fully closed lock status is completed, latch hook motor continues that latch hook 2 is driven to rotate；

4), full lock-bit state: latch hook 2 continues to rotate, when card convex 4-1 is caught in level-one lock-bit 2-1, as shown in fig. 6, first Microswitch 11-1 is remained at groove 6-2 and is contacted not trigger signal with the disconnection of triggering rod 6, and the second microswitch 11-2 enters Not trigger signal is contacted with the disconnection of pawl 4 at unfilled corner 4-2, central control system is fed back to and shows that latch hook 2 is in full lock-bit state, latch hook 2 are caught in lock 12, and lock 12 is contacted with buffer stopper 8 completes latching process.

Unlocking process: automobile tail gate is in close state, and the first microswitch 11-1 is at groove 6-2 and triggering rod 6 Not trigger signal is not contacted, and the second microswitch 11-2 is at unfilled corner 4-2 and does not contact not trigger signal with pawl 4, feeds back to Central control system shows that electronic actuation latch mechanism is in full lock-bit state, and central control system starts pawl motor, pawl motor driven spine The rotation of pawl 4 makes card convex 4-1 be detached from level-one lock-bit 2-1, and the sealing force of automobile tail gate makes latch hook 2 be detached from lock 12, automobile tail gate bullet End into unlocking action.

Claims (8)

1. a kind of electronic actuation latch mechanism with three-level lock-bit, it is characterised in that: including bottom plate (1) and be arranged on bottom plate (1) Latch hook detent system, the latch hook detent system includes latch hook (2), latch hook elastic element (3), pawl (4), pawl spring member Part (5) and detection device, the latch hook (2) and pawl (4) are rotatably arranged on bottom plate (1), along its turn on the latch hook (2) It is respectively level-one lock-bit (2-1), second level lock-bit (2-2) and three-level lock-bit (2-3) that dynamic direction, which is successively opened up there are three lock-bit, described The card convex (4-1) of one with lock-bit cooperation, when the latch hook (2), which rotate, to be latched, the card convex are outward extended on pawl (4) (4-1) successively slips over three-level lock-bit (2-3) and second level lock-bit (2-2) and is caught in level-one lock-bit (2-1), the latch hook elastic element (3) and pawl spring element (5) is respectively that latch hook (2) and pawl (4) provide screen resilience, makes card convex (4-1) can be different Locking on lock-bit；

The detection device is used to detect the lockup state of latch hook (2), and the detection device and interior central control system signal connect It connects, completes locking and unlocking motion to control electronic execution system drive latch hook (2) and pawl (4) rotation.

2. the electronic actuation latch mechanism according to claim 1 with three-level lock-bit, it is characterised in that: the detection device packet Include triggering rod (6), triggering rod elastic element (7), the first microswitch (11-1) and the second microswitch (11-2), the latch hook (2) it is in rotational direction provided with curved guiding surface (2-4), one end of the triggering rod (6) is rotatably arranged on pawl (4), another One end has contact (6-1), and the triggering rod elastic element (7) is that triggering rod (6) provide screen resilience, makes contact (6-1) always It is contacted with curved guiding surface (2-4), when card convex (4-1) is caught in three-level lock-bit (2-3), the first microswitch (11-1) and triggering rod (6) it disengages, the second microswitch (11-2) is kept in contact with pawl (4), when card convex (4-1) is caught in second level lock-bit (2-2) When, the first microswitch (11-1) holding is not contacted with triggering rod (6), and the second microswitch (11-2) keeps connecing with pawl (4) Touching, when card convex (4-1) is caught in level-one lock-bit (2-1), the first microswitch (11-1) holding is not contacted with triggering rod (6), the Two microswitches (11-2) are disengaged with pawl (4).

3. the electronic actuation latch mechanism according to claim 2 with three-level lock-bit, it is characterised in that: the triggering rod (6) It is upper that there is groove (6-2), there is unfilled corner (4-2) on the pawl (4), when the first microswitch (11-1) and triggering rod (6) no When contact, the first microswitch (11-1) is located at groove (6-2), when the second microswitch (11-2) is not contacted with pawl (4) When, the second microswitch (11-2) is located at unfilled corner (4-2).

4. the electronic actuation latch mechanism according to claim 2 with three-level lock-bit, it is characterised in that: the triggering rod (6) One end close to contact (6-1) is extended with limited post (6-3), is offered on the bottom plate (1) and the movement rail of limited post (6-3) The limit hole (1-1) that mark matches, the limited post (6-3) are inserted into limit hole (1-1), and the edge of the latch hook (2) is outside Be extended with limit plate (2-5), the triggering rod (6) close to the one end of contact (6-1) be located at bottom plate (1) and limit plate (2-5) it Between.

5. the electronic actuation latch mechanism according to claim 2 with three-level lock-bit, it is characterised in that: the latch hook elasticity member Part (3), pawl spring element (5) and triggering rod elastic element (7) select torsional spring.

6. the electronic actuation latch mechanism according to claim 1 with three-level lock-bit, it is characterised in that: be provided with confession on vehicle body The lock (12) that is caught in when latch hook (2) is latched is provided with buffer stopper (8) corresponding with (12) are latched on the latch hook (2).

7. the electronic actuation latch mechanism according to claim 1 with three-level lock-bit, it is characterised in that: on the bottom plate (1) It is provided with shell, the shell is for covering latch hook detent system.

8. the electronic actuation latch mechanism according to claim 7 with three-level lock-bit, it is characterised in that: the bottom plate (1) and Latch hook rivet (9) and pawl rivet (10) are fixed between shell, latch hook (2) rotation is set on latch hook rivet (9), institute Pawl (4) rotation is stated to be set on pawl rivet (10).