TWM640904U - Electronic door lock and transmission kit thereof - Google Patents

Abstract

The utility mode provides a transmission kit suitable for electronic door locks, including: a gear box, a motor module, a transmission gear set, a transmission rod, a clutch transmission module and a motion detection circuit board. Wherein, the motion detection circuit board has a U-turn detection module, which can be used to detect the actuation state of the clutch transmission module.

Description

Electronic door lock and its transmission kit

The invention relates to a transmission kit, in particular to a transmission kit applicable to electronic door locks.

With the advancement of modern technology, smart home appliances are gradually being widely used in home life, thus making home life more comfortable and convenient. Among many types of smart home appliances, electronic door locks are usually one of the standard equipment. Electronic door locks usually release the electronically controlled locking state of the device through the user's input of a password or through fingerprint recognition, facial feature recognition, etc., and use the built-in drive motor module to automatically perform the steps of latching and unlocking the bolt.

In the prior art, in order to make the transmission element driven by the motor module in the electronic door lock operate correctly, a sensor is usually installed in the casing of the electronic door lock to sense the actuation state of the transmission element. However, during the actuation process of the transmission components inside the electronic door lock, various internal and external factors may affect its actuation speed and start position, and the long-term accumulated actuation tolerance may cause the sensor to fail to correctly sense The actuation state of the transmission element makes the electronic door lock unable to actuate correctly.

Therefore, how to provide an electronic door lock that avoids the actuation error of the transmission element is the technical problem to be solved in this creation.

The main purpose of this creation is to provide an electronic door lock and a carriage return program transmission kit.

In order to achieve the aforementioned purpose, this creation provides an electronic door lock installed on the door panel, including: a first lock body, including a base and a cover body; a transmission kit, arranged in the first lock body, including: a gear box , including a lower cover and an upper cover that can be combined, the lower cover has a first perforation and a detection opening, the upper cover has a second perforation corresponding to the first perforation; the motor module is installed on the lower cover; the transmission gear set, the pivot It is arranged on the lower cover and meshed with the motor module; the transmission rod, the two opposite ends of the transmission rod are respectively pierced through the first and second through holes; the clutch transmission module includes: the clutch gear, which has the opposite first surface and On the second surface, the first surface has a groove, and there are two opposing projections located on the same rotation path in the groove, and the first shaft hole penetrates through the center of the groove. And there are two sensing points opposite to each other, the transmission rod is passed through the first shaft hole, so that the clutch gear is pivoted on the transmission rod and meshed with the transmission gear set; the coupling part is rotatably fitted in the groove , and combined with the transmission rod so as to be linked with the transmission rod; and two stoppers, arranged on opposite sides of the combination piece, each stopper has a stopper corresponding to each pushing bump; and the action The detection circuit board is electrically connected to the motor module and is arranged on the side of the lower cover opposite to the upper cover. The motion detection circuit board has a third surface and a fourth surface opposite to each other, and the third surface has carriage return detection. Module, the carriage return detection module is arranged in the detection opening and includes a first carriage return detection unit and a second carriage return detection unit, the first and second carriage return detection units correspond to the two sensing The rotation path of the point; the latch assembly has a latch spindle, a latch bolt accommodated in the latch spindle, and a torque blade passing through the latch spindle, and the torque blade passes through the base and is connected to the transmission The rod passes through one end of the first through hole and can be used to control the extension and retraction of the latch bolt; Wherein, the motor module drives the clutch gear through the transmission gear set, so that each pushing projection pushes against the stopper to drive the transmission rod to rotate, and the transmission rod drives the latch bolt to protrude from the latch spindle to the locking position through the torque blade, and then The motor module drives the clutch gear to reverse, so that each push bump is separated from the stopper. When the motion detection circuit board detects one of the two sensing points, it passes through the first and second carriage return detection units. After at least one of them, stop the clutch gear to complete the carriage return procedure.

In the above preferred embodiment, the transmission rod has a transmission cylinder at one end passing through the first through hole, and the transmission cylinder is provided with two opposite flange structures in the radial direction.

In the above preferred embodiment, wherein the fourth surface has a lock detection module, the lock detection module includes a first lock detection unit and a second lock detection unit, the first and second lock detection units correspond to Two flange structures.

In the above preferred embodiment, when the latch bolt is completely accommodated in the latch spindle, one of the two flange structures presses against the second lock detection unit.

In the above-mentioned preferred embodiment, wherein when the latch bolt is at the locked position, the flange structure that originally pressed the second lock detection unit is away from the second lock detection unit, and the other flange structure moves synchronously and touches A first lock detection unit.

In the above-mentioned preferred embodiment, when the latch bolt is at the locked position, the flange structure that originally pressed the second lock detection unit is away from the second lock detection unit and then touches the first lock detection unit.

In the above preferred implementation manner, the lock detection module is a micro switch module.

In the above preferred implementation manner, the carriage return detection module is a light detection module, and the two sensing points are light reflection points.

In the above preferred implementation manner, the carriage return detection module is a Hall magnetic sensing module, and the two sensing points are magnetic elements.

In the above-mentioned preferred embodiment, the coupling part is provided with a polygonal engagement recess on the surface facing the clutch gear.

In the above preferred embodiment, wherein the transmission rod is provided with a polygonal engaging block corresponding to the polygonal engaging recess along the radial direction, the polygonal engaging block and the polygonal engaging recess are mutually snapping, so that the coupling part and the transmission rod are linked.

In the above-mentioned preferred embodiment, the coupling member has a second shaft hole coaxially arranged with the polygonal engaging recess.

In the above preferred embodiment, it further includes an operating element, the cover body has a mounting hole, and the operating element is mounted in the mounting hole.

In the above preferred embodiment, one end of the transmission rod passing through the second through hole is connected to the operating element through the installation hole.

In the above-mentioned preferred embodiment, one end of the transmission rod passing through the second through hole has a fixed section, the operating element includes a knob structure and a shaft tube part combined with the knob structure, the shaft tube part is installed in the installation hole and is connected with the The fixed sections are combined.

In the above preferred embodiment, the motor module includes a motor body and a worm connected to the motor body.

In the above-mentioned preferred embodiment, wherein the transmission gear set includes a first compound gear and a second compound gear, the first compound gear has a first small-diameter ring tooth portion and a first large-diameter ring tooth portion coaxially arranged, and the second compound gear The gear has a second small-diameter ring tooth portion and a second large-diameter ring tooth portion coaxially arranged.

In the above preferred embodiment, wherein the first small-diameter ring gear meshes with the clutch gear, the first large-diameter ring tooth portion meshes with the second small-diameter ring tooth portion, and the second large-diameter ring tooth portion meshes with the worm. engage.

In the above preferred embodiment, the two stoppers are made of both rigid and elastic materials.

The invention also provides a transmission kit suitable for electronic door locks, which includes: a gear box, including a lower cover and an upper cover that can be combined, the lower cover has a first through hole and a detection opening, and the upper cover has a second hole corresponding to the first through hole Two perforations; the motor module is installed on the lower cover; the transmission gear set is pivotally arranged on the lower cover and meshed with the motor module; the transmission rod is respectively installed on the first and second Perforation; Clutch transmission module, including: The clutch gear has an opposite first surface and a second surface, the first surface has a groove, and there are two pushing projections located in the same rotation path and opposite to each other in the groove, and a first shaft penetrating through the center of the groove The hole, the second surface has two sensing points that are located on the same rotation path and are oppositely arranged, and the transmission rod is passed through the first shaft hole, so that the clutch gear is pivoted on the transmission rod and meshed with the transmission gear set; the combination , rotatably fitted in the groove, and combined with the transmission rod so as to be linked with the transmission rod; push against a stop portion of the protrusion; and a motion detection circuit board, electrically connected to the motor module, disposed on the side of the lower cover opposite to the upper cover, the motion detection circuit board has a third surface opposite to the upper cover. The fourth surface and the third surface have a carriage return detection module, the carriage return detection module is arranged in the detection opening and includes a first carriage return detection unit and a second carriage return detection unit, the first and second carriage return detection units The carriage return detection unit corresponds to the rotation path of the two sensing points.

In the above-mentioned preferred embodiment, the transmission rod has a transmission cylinder at one end passing through the first through hole, and the transmission cylinder is provided with two opposite flange structures in the radial direction.

In the above preferred embodiment, wherein the fourth surface has a lock detection module, the lock detection module includes a first lock detection unit and a second lock detection unit, the first and second lock detection units correspond to There are two flange structures, and one of the two flange structures can touch the first lock detection unit or the second lock detection unit.

In the above preferred implementation manner, the lock detection module is a micro switch module.

In the above preferred implementation manner, the carriage return detection module is a light detection module, and the two sensing points are light reflection points.

In the above preferred implementation manner, the carriage return detection module is a Hall magnetic sensing module, and the two sensing points are magnetic elements.

In the above-mentioned preferred embodiment, the coupling part is provided with a polygonal engagement recess on the surface facing the clutch gear.

In the above-mentioned preferred embodiment, wherein the transmission rod is provided with a polygonal engaging block corresponding to the polygonal engaging recess along the radial direction, the polygonal engaging block and the polygonal engaging recess are engaged with each other, so that the coupling part and the transmission rod are linked .

In the above-mentioned preferred embodiment, the coupling member has a second shaft hole coaxially arranged with the polygonal engaging recess.

In the above preferred embodiment, the motor module includes a motor body and a worm connected to the motor body.

In the above-mentioned preferred embodiment, wherein the transmission gear set includes a first compound gear and a second compound gear, the first compound gear has a first small-diameter ring tooth portion and a first large-diameter ring tooth portion coaxially arranged, and the second compound gear The gear has a second small-diameter ring tooth portion and a second large-diameter ring tooth portion coaxially arranged.

In the above preferred embodiment, wherein the first small-diameter ring gear meshes with the clutch gear, the first large-diameter ring tooth portion meshes with the second small-diameter ring tooth portion, and the second large-diameter ring tooth portion meshes with the worm. engage.

In the above preferred embodiment, the two stoppers are made of both rigid and elastic materials.

The beneficial effect of the invention is that the provided transmission kit can drive the latch bolt of the electronic door lock to move in two directions, and can be applied to the door panel of the left switch or the right switch. On the other hand, the setting of the Enter program is used to avoid the internal gear from being stuck, so that the user can easily turn the operating element to release the locked state of the electronic door lock.

In addition, the design of this case is to integrate the sensors for sensing the state of the transmission components, such as: carriage return detection module, lock detection module, etc., and the corresponding sensing structure in the transmission kit. It can effectively prevent the transmission element of the electronic door lock from being unable to correctly perceive the state of the transmission element due to long-term accumulation of operating tolerances, and avoid the failure of the transmission element in the electronic door lock. On the other hand, the integrated design of the transmission kit not only reduces the overall volume, but also enables it to be easily installed in different electronic door locks, thereby reducing the design and manufacturing costs of the electronic door lock.

A: axis of rotation

C: control circuit

FW: Firmware

D: door panel

F1: first surface

F2: second surface

F3: third surface

F4: fourth surface

M: turn logo

S101~S104: steps

1: Electronic door lock

10: The first lock body

11: shell

111: base

112: cover body

1121: Mounting hole

113: Power supply module

114: Main circuit board

17: Operating elements

171: Knob structure

172: shaft tube

20: Second lock body

21: Lock cylinder structure

30: Latch assembly

31: Latch mandrel

311: Torque vane

32: Latch Bolt

33: Latch plate

40: Transmission Kit

41:Gear box

411: lower cover

4111: First piercing

4112, 4113: detection opening

4114, 4115: shaft

412: top cover

4121:Second piercing

42:Motor module

421: Motor body

422: worm

43: Transmission gear set

431: First compound gear

4311: The first large diameter ring gear

4312: The first small diameter ring gear

432: second compound gear

4321: The second large diameter ring gear

4322: The second small diameter ring gear

44: Clutch transmission module

441: clutch gear

4411: Groove

4412: Push against the bump

4413: The first shaft hole

4414: Sensing point

442: Combination

4421: snap slot

4422: Polygon engagement recess

4423: Second shaft hole

443: stopper

4431: stopper

4432: bending part

45:Motion detection circuit board

451: circuit board body

452: Carriage return detection module

4521: The first carriage return detection unit

4522: The second carriage return detection unit

453: Lock detection module

4531: The first lock detection unit

4532: The second lock detection unit

46: Transmission rod

461: Fixed section

462: Polygon snap block

463: Transmission cylinder

4631: Flange structure

90: Fixing bolt

Figure 1A: A perspective schematic diagram of the electronic door lock provided by this creation; Figure 1B: A top perspective schematic diagram of the electronic door lock provided by this creation; Figure 1C: An electronic door lock provided by this creation A three-dimensional schematic view from another perspective; Figure 2: a partial perspective exploded view of the electronic door lock provided by this creation; Figure 3A: a three-dimensional exploded view from one perspective of the transmission kit provided by this creation; Figure 3B: a perspective view of The three-dimensional exploded view of the transmission kit provided by this creation from another perspective; Figure 4A: It is a three-dimensional schematic diagram of the internal components of the transmission kit from one perspective; Figure 4B: It is a three-dimensional schematic diagram of the internal components of the transmission kit from another perspective; Figure 4C : It is the three-dimensional bottom view of the internal components of the transmission kit; Fig. 5: It is the system block diagram of the first lock body of this creation; Fig. 6A: It is the locking detection module of the electronic door lock of this creation towards the first direction. Figure 6B: is a schematic diagram of the latch bolt corresponding to Figure 6A; Figure 6C: is a schematic diagram of the clutch gear corresponding to Figure 6A; Figure 7A: the electronic door lock for this creation is facing the second direction Figure 7B: a schematic diagram of the latch bolt action corresponding to Figure 7A; Figure 7C: a schematic diagram of the clutch gear action corresponding to Figure 7A; and Figure 8: provided for this creation The flow chart of the Enter program of the electronic door lock.

The advantages and features of the invention and methods for achieving them will be more easily understood with reference to the more detailed description of the exemplary embodiments and accompanying drawings. However, this creation can be implemented in different forms It is by no means limited to the examples set forth herein and should not be construed. On the contrary, for those skilled in the art, these embodiments are provided to make this disclosure more thorough and comprehensive and fully convey the scope of this invention.

First, please refer to FIG. 1A , FIG. 1B and FIG. 1C . Figure 1A is a perspective view of the electronic door lock provided by this creation; Figure 1B is a perspective view of the electronic door lock provided by this creation; Figure 1C is another perspective of the electronic door lock provided by this creation 3D schematic diagram of . The electronic door lock 1 can be installed on a door panel (not shown in the figure), and includes: a first lock body 10 , a second lock body 20 and a latch assembly 30 . The first lock body 10 and the second lock body 20 can be installed on the two sides of the door panel respectively, which are respectively located on the inner surface of the house and the outside outside of the house; the latch assembly 30 is then installed on the side edge of the door panel, and The first lock body 10 , the second lock body 20 and the latch assembly 30 can be combined with each other by fixing bolts 90 and fixed on the door panel.

The casing 11 of the first lock body 10 is provided with an operating element 17, which can be manually locked and unlocked by the user; the second lock body 20 has a lock cylinder structure 21; the latch assembly 30 is It has a latch spindle 31 , a latch bolt 32 accommodated in the latch spindle 31 , and a torque vane 311 passing through the latch spindle 31 .

In this embodiment, a latch plate 33 is provided on the upper and lower sides of the latch spindle 31 extending from the opening of the latch bolt 32, and the latch assembly 30 can be fixed on the latch assembly 30 by the latch plate 33. The side edge of the door panel. On the other hand, the two ends of the torque blade 311 are respectively connected to the operating element 17 and the lock core structure 21, so that the user can turn the lock core structure 21 with a key (not shown in the figure), or manually rotate the operating element 17 to drive The torque blade 311 rotates to control the extension and retraction of the latch bolt 32 to perform locking and unlocking actions of the electronic door lock 1 .

Please refer to FIG. 2 , FIG. 3A and FIG. 3B . Figure 2 is a partial perspective exploded view of the electronic door lock provided by this creation; Figure 3A is a three-dimensional exploded view of one perspective of the transmission kit provided by this creation; Figure 3B is another perspective of the transmission kit provided by this creation exploded view of the . The casing 11 of the first lock body 10 includes a base 111 and a cover 112 , and the cover 112 can be combined with the base 111 to form an accommodating space. Wherein, the cover body 112 has a mounting hole 1121 for mounting the operating element 17 ; a power supply module 113 and a main circuit board 114 are sequentially disposed above the base 111 .

The power supply module 113 is used to provide power for the operation of the electronic door lock 1; The main circuit board 114 is electrically connected to components such as the operation interface, the display interface and the speaker unit (not shown in the figure) of the electronic door lock 1 . On the other hand, a transmission kit 40 is disposed under the power supply module 113 and the main circuit board 114 . The operating element 17 includes a knob structure 171 and a shaft tube portion 172 connected to the knob structure 171 , the shaft tube portion 172 can be installed in the installation hole 1121 , and can be connected to the torque blade of the latch assembly 30 through the transmission sleeve 40 311 (as shown in FIG. 1B ), so that the operating element 17 can be linked with the torque vane 311 . In this embodiment, the surface of the knob structure 171 is provided with a rotation mark M that can be recognized by the user. For example, when the electronic door lock 1 is unlocked, the knob structure 171 is in a vertical state and the rotation mark M is at 12 The user can twist the knob structure 171 clockwise or counterclockwise, and turn the rotation mark M to the 3 o'clock or 9 o'clock position to perform the locking action of the electronic door lock 1 .

Please continue to refer to FIG. 3A and FIG. 3B . The transmission kit 40 includes: a gear box 41 , a motor module 42 , a transmission gear set 43 , a clutch transmission module 44 , a motion detection circuit board 45 and a transmission rod 46 .

The gear box 41 includes a lower cover 411 and an upper cover 412 that can be combined. Wherein, the lower cover 411 has a first through hole 4111 , detection openings 4112 , 4413 , and rotating shafts 4114 , 4115 ; and the upper cover 412 has a second through hole 4121 corresponding to the first through hole 4111 . In this embodiment, the detection openings 4112, 4413 are disposed on one side of the first through hole 4111; the rotating shafts 4114, 4115 are adjacently disposed.

The motor module 42 is mounted on the lower cover 411 and includes a motor body 421 and a worm 422 connected to the motor body 421 .

The transmission gear set 43 includes: a first compound gear 431 and a second compound gear 432, and the first compound gear 431 and the second compound gear 432 are installed on the rotating shafts 4114, 4115 of the lower cover 411 respectively and are pivoted on the lower cover 411 above. Wherein, the first compound gear 431 has a first large-diameter ring tooth portion 4311 and a first small-diameter ring tooth portion 4312 coaxially arranged; the second compound gear 432 also has a second large-diameter ring tooth portion 4321 and a second Small diameter ring tooth portion 4322 .

The clutch transmission module 44 includes: a clutch gear 441 , a coupling part 442 and two stoppers 443 . The clutch gear 441 has a first surface F1 and a second surface F2 opposite to each other. Wherein, the first surface F1 has a groove 4411, and the groove 4411 has There are two opposing protrusions 4412 on the rotation path; the center of the bottom surface of the groove 4411 has a first shaft hole 4413 penetrating through the shaft center of the clutch gear 441 . The second surface F2 has two sensing points 4414 located on the same rotation path and opposite to each other. In this embodiment, the two pushing projections 4412 are arranged on the inner edge of the side wall of the groove 4411, but in other possible implementation manners, the two pushing projections 4412 can also be arranged on the bottom surface of the groove 4411 . The sensing point 4414 is a light reflection point made of reflective material, such as white plastic, silver paint or metal material.

The coupling member 442 is rotatably engaged in the groove 4411 . In this embodiment, the combining member 442 has two parallel side edges and two arc-shaped flange structures perpendicular to the parallel side edges. Wherein, the arc-shaped flange structure of the coupling member 442 corresponds to the inner edge of the side wall of the groove 4411 ; engaging grooves 4421 are respectively provided at the two parallel side edges. On the other hand, a polygonal engaging recess 4422 and a second shaft hole 4423 coaxially disposed with the polygonal engaging recess 4422 and penetrating through the engaging member 442 are disposed on the surface of the engaging member 442 facing the clutch gear 441 .

The blocking member 443 includes a blocking portion 4431 and two bent portions 4432 extending outward from the blocking portion 4431 . The bent part 4432 can be fitted into the engaging groove 4421 of the coupling part 442, so that the stop part 443 is fixed on the opposite sides of the coupling part 442, and the stop part 4431 corresponds to the groove of the clutch gear 441 Two push-off protrusions 4412 in 4411. The stopper 443 is made of both rigid and elastic materials, such as metal shrapnel.

The motion detection circuit board 45 is electrically connected to the motor module 42, and is arranged on the side of the lower cover 411 opposite to the upper cover 412. It includes: a circuit board body 451, a carriage return detection module 452 and a locking Detection module 453. The circuit board body 451 has a third surface F3 and a fourth surface F4 opposite to each other. Wherein, the carriage return detection module 452 is disposed on the third surface F3, and includes a first carriage return detection unit 4521 and a second carriage return detection unit 4522; the lock detection module 453 is disposed on the fourth surface F4, And includes a first lock detection unit 4531 and a second lock detection unit 4532 .

In this embodiment, the third surface F3 of the circuit board body 451 faces the lower cover 411, and the first and second carriage return detection units 4521 and 4522 of the carriage return detection module 452 are respectively corresponding to the detection openings 4413 , 4412, and are disposed in the detection openings 4413, 4412. Wherein, the carriage return detection module 452 is a light detection module; the lock detection module 453 is a micro switch module. Although this embodiment only proposes an implementation in which the two detection openings 4413, 4412 correspond to the two carriage return detection units, in practical applications, only one detection unit that can simultaneously cover the two carriage return detection units can also be provided. hole.

Two opposite ends of the transmission rod 46 pass through the first and second through holes 4111 and 4121 respectively, and are rotatably disposed on the gear case 41 . Wherein, the transmission rod 46 includes: a fixed section 461 , a polygonal engaging block 462 and a transmission cylinder 463 . The transmission column 463 is passed through the first through hole 4111 of the lower cover 411, and can be connected to the torque blade 311 of the latch assembly 30 (as shown in FIG. 1B ), and the transmission column 463 is provided with opposite The two flange structures 4631; the fixing section 461 is passed through the second through hole 4121 of the upper cover 412, and can be connected to the shaft tube part 172 of the operating element 17 (as shown in Figure 2); The block 462 is disposed between the fixed section 461 and the transmission cylinder 463 .

Please refer to FIG. 4A , FIG. 4B and FIG. 4C . Fig. 4A is a three-dimensional schematic view of the internal components of the transmission set; Fig. 4B is a three-dimensional schematic view of the internal components of the transmission set from another perspective; Fig. 4C is a three-dimensional bottom view of the internal components of the transmission set. It should be noted that, for convenience of description, FIG. 4A , FIG. 4B and FIG. 4C do not show the lower cover 411 and the upper cover 412 of the gear box 41 . When the transmission gear set 43 is installed on the lower cover 411, the second large diameter ring gear 4321 of the second compound gear 432 will mesh with the worm 422 of the motor module 42; the first large diameter of the first compound gear 431 The ring tooth portion 4311 meshes with the second small-diameter ring tooth portion 4322 of the second compound gear 432 .

The fixed section 461 of the transmission rod 46 can sequentially pass through the first shaft hole 4413, the polygonal engagement recess 4422 and the second shaft hole 4423 on the clutch transmission module 44, and let the polygonal engagement block of the transmission rod 46 462 engages with the polygonal engaging recess 4422 on the coupling part 442 , so that the coupling part 442 can be linked with the transmission rod 46 , and a rotation axis A can be defined by the transmission rod 46 .

The clutch gear 441 fitted with the coupling part 442 is meshed with the first small-diameter ring gear 4312 of the first composite gear 431, so that the motor module 42 can drive the clutch gear 441 to rotate through the transmission gear set 43 , and when the clutch gear 441 rotates clockwise or counterclockwise, the two pushing projections 4412 in the groove 4411 will push against the corresponding blocking parts 4431, so as to drive the coupling part 442 and the transmission rod 46 linked with the coupling part 442 to rotate.

In addition, since the stopper 443 is made of both rigid and elastic materials, this design is a protection mechanism. For example, if the torque of the clutch gear 441 driven by the motor module 42 is too large, the pushing projection 4412 will squeeze the stopper 4431 and deform the stopper 443, so that the pushing projection 4412 will go over the stop Part 4431, and can avoid the damage that transmission gear set 43, clutch gear 441 or transmission rod 46 cause due to excessive torque.

On the other hand, in some special cases, for example, when the motor module 42, the transmission gear set 43 or the clutch gear 441 cannot rotate due to damage or jamming, if the user twists the operating element 17 with a relatively large force (such as 2) to rotate the transmission rod 46, during the rotation of the transmission rod 46, the stopper 4431 will be pressed against the projection 4412 to deform the stopper 443, so that the stopper 4431 can pass over Push against the protrusion 4412, so that the transmission rod 46 can still rotate smoothly and control the latch assembly 30 to unlock. This design is another protection mechanism, which can prevent the user from being locked inside or outside the house due to damage or jamming of the motor module 42 , the transmission gear set 43 or the clutch gear 441 .

The lock detection module 453 is adjacent to the transmission rod 46, and the first lock detection unit 4531 and the second lock detection unit 4532 are corresponding to the two flange structures 4631 of the transmission cylinder 463, and can be used to detect transmission The rotation state of the cylinder 463. When the transmission rod 46 rotates to a specific angle, one of the two flange structures 4631 will touch the first lock detection unit 4531 or the second lock detection unit 4532, so that the lock detection module 453 produces different Feedback signal. In other possible implementations, the lock detection module 453 can also be a light detection module or a Hall magnetic sensing module; and the two flange structures 4631 are replaced by light reflection points or magnetic elements.

The first carriage return detection unit 4521 and the second carriage return detection unit 4522 of the carriage return detection module 452 correspond to the rotation paths of the two sensing points 4414 of the clutch gear 441, and can be used to detect the clutch The rotation state of the gear 441. In this embodiment, the carriage return detection module 452 is a light detection module capable of emitting light and receiving light at the same time. Since the sensing point 4414 is a light reflection point made of reflective material, when the clutch gear 441 rotates and synchronously drives the sensing point 4414, the sensing point 4414 is facing the first carriage return detection unit 4521 or the second carriage return detection unit 4521. At the instant of the vehicle detection unit 4522, the sensing point 4414 can reflect the light emitted by the vehicle return detection module 452, And let the first and second carriage return detection units 4521 and 4522 receive strong reflective signals, so that the carriage return detection module 452 can perceive the sensing point 4414 passing above it.

Although this embodiment only proposes that the carriage return detection module 452 is a light detection module, and the sensing point 4414 is an implementation mode of a light reflection point, in actual application, the carriage return detection module 452 and the sensing point 4414 can also be replaced by currently known detection methods. For example, the carriage return detection module 452 is a Hall magnetic sensing module, and the sensing point 4414 is a magnetic element, so that the carriage return detection module 452 can sense the magnetic force of the sensing point 4414 and generate corresponding control The signal is not limited to the implementation manner proposed in this embodiment.

Please refer to Fig. 5, Fig. 5 is the system block diagram of the first lock body of this creation. The main circuit board 114 in the first lock body 10 is electrically connected to the power supply module 113 and the motion detection circuit board 45 respectively. The motion detection circuit board 45 is electrically connected to the carriage return detection module 452 , the lock detection module 453 and the motor module 42 respectively. Wherein, the motion detection circuit board 45 has a control circuit C, and the control circuit C includes firmware FW. The motion detection circuit board 45 can control the operation of the motor module 42 according to the feedback signals detected by the carriage return detection module 452 and the lock detection module 453 through the operating procedures formulated by the programming language of the firmware FW time and direction of rotation.

Please refer to FIG. 4A to FIG. 4C , FIG. 6A , FIG. 6B and FIG. 6C together. Fig. 6A is a schematic diagram of the operation of the locking detection module for locking the electronic door lock in the first direction; Fig. 6B is a schematic diagram of the operation of the latch bolt corresponding to Fig. 6A; Fig. 6C is a schematic diagram of the clutch gear corresponding to Fig. 6A Schematic diagram of the action. It should be noted that, for the convenience of description, FIG. 6A , FIG. 6B and FIG. 6C only show the components that move in conjunction along the upper part of the rotation axis A. As shown in FIG.

When the knob structure 171 of the operating element 17 is in a vertical state, that is, the rotation mark M of the knob structure 171 is at the 12 o’clock position (as shown in (i) of FIG. 6A ), the flange structure 4631 on the right side of the transmission rod 46 will be pressed The second lock detection unit 4532 of the lock detection module 453 makes the first lock detection unit 4531 and the second lock detection unit 4532 of the lock detection module 453 generate detection signals of “0, 1”. The motion detection circuit board 45 that receives the detection signal of "0, 1" determines that the latch bolt 32 is completely accommodated in the latch spindle 31 (as shown in (i) of FIG. 6B ).

Then, when the user rotates the knob structure 171 manually, or drives the transmission rod 46 through the motor module 42 to perform linkage, the knob structure 171 moves counterclockwise along the rotation axis A. Rotate in the clock direction to assume a horizontal state, that is, when the rotation mark M of the knob structure 171 is rotated to the 9 o'clock position (as shown in (ii) of FIG. 6A ), the flange structure 4631 of the second locking detection unit 4532 is pressed. It will disengage and move away from the second lock detection unit 4532 , while the original left flange structure 4631 moves synchronously with the rotation of the transmission rod 46 and touches the first lock detection unit 4531 . At this time, the first lock detection unit 4531 and the second lock detection unit 4532 of the lock detection module 453 generate detection signals of “1, 0”. The motion detection circuit board 45 that receives the "1, 0" detection signal determines that the latch bolt 32 has extended toward the first direction and reached the locked position (as shown in (ii) of FIG. 6B ). In this embodiment, the first direction is left.

In FIG. 6C , when the electronic door lock 1 is automatically locked, the motor module 42 drives the clutch gear 441 to rotate counterclockwise along the rotation axis A through the transmission gear set 43 , and at this time, the pushing projection 4412 pushes against the stopper 443 The stop portion 4431 (as shown in (i) and (ii) of FIG. 6C ) further drives the coupling part 442 and the linked transmission rod 46 to rotate. When the transmission rod 46 rotates and the lock detection module 453 outputs a detection signal of "1, 0" (as shown in (ii) of FIG. 6A ), it means that the latch bolt 32 has been extended to the locked position (as shown in FIG. (ii) of 6B). Subsequently, the motion detection circuit board 45 controls the motor module 42 to drive the clutch gear 441 to reverse, that is, the clutch gear 441 rotates clockwise. At this time, the pushing bump 4412 will break away from the stopper 4431 and no longer interfere with each other, and when the carriage return detection module 452 detects one of the sensing points 4414, it passes through the second carriage return detection unit 4522, the second carriage return detection unit 4522, and After the carriage return detection unit 4521 stops the clutch gear 441 to complete the carriage return procedure (as shown in (iii) of FIG. 6C ). In other possible implementation manners, when the second carriage return detection unit 4522 detects that the sensing point 4414 passes for the first time (as shown in (ii) of FIG. 6C ), the motion detection circuit board 45 immediately turns off the second Two carriage return detection unit 4522. Afterwards, when the carriage return detection module 452 detects that one of the sensing points 4414 passes the first carriage return detection unit 4521, it stops the clutch gear 441 from actuating to complete the carriage return procedure (as shown in (iii) of FIG. 6C Show).

Due to the carriage return procedure, the pushing projection 4412 of the clutch gear 441 will disengage from the blocking portion 4431 of the blocking member 443 , and a buffering rotation interval is formed between the pushing projection 4412 and the blocking portion 4431 . In this way, when the user manually twists the knob structure 171 of the operating element 17 to drive the transmission rod 46 to rotate, when the rotation mark M of the knob structure 171 returns to the 12 o'clock position (as shown in (i) of Figure 6C ) , the stop portion 4431 against the stopper 443 will be in contact with the clutch gear 441 again. The pushing protrusions 4412 interfere with each other. And through the execution of the carriage return program, the situation that the user cannot rotate the transmission rod 46 by twisting the operating element 17 due to the clutch gear 441 being stuck can be effectively avoided.

Please refer to FIG. 4A to FIG. 4C , FIG. 7A , FIG. 7B and FIG. 7C together. Fig. 7A is a schematic diagram of the operation of the locking detection module for locking the electronic door lock in the second direction; Fig. 7B is a schematic diagram of the operation of the latch bolt corresponding to Fig. 7A; Fig. 7C is a schematic diagram of the operation of the clutch gear corresponding to Fig. 7A . Similarly, for the convenience of description, FIG. 7A , FIG. 7B and FIG. 7C only show some components that perform interlocking motion.

In this embodiment, the latch bolt 32 protrudes toward the second direction, so the knob structure 171 and the clutch gear 441 rotate clockwise along the rotation axis A. As shown in FIG. When the knob structure 171 is in a vertical state, that is, the rotation mark M of the knob structure 171 is at the 12 o’clock position (as shown in (i) of FIG. 7A ), the flange structure 4631 on the right side of the transmission rod 46 will touch the second lock The detection unit 4532 makes the lock detection module 453 output a detection signal of "0, 1". The motion detection circuit board 45 that receives the "0, 1" detection signal determines that the latch bolt 32 is completely accommodated in the latch spindle 31 (as shown in (i) of FIG. 7B ).

Next, when the knob structure 171 is rotated clockwise and is in a horizontal state, that is, when the rotation mark M of the knob structure 171 is rotated to the 3 o'clock position (as shown in (ii) of FIG. 7A ), the original touch second The flange structure 4631 of the lock detection unit 4532 will break away from and away from the second lock detection unit 4532, and move synchronously with the rotation of the transmission rod 46 and touch the first lock detection unit 4531, so that the lock detection module 453 The first lock detection unit 4531 and the second lock detection unit 4532 generate detection signals of “1, 0”. The motion detection circuit board 45 that receives the "1, 0" detection signal determines that the latch bolt 32 has protruded toward the second direction and reached the locking position (as shown in (ii) of FIG. 7B ). In this embodiment, the second direction is right.

In FIG. 7C , when the electronic door lock 1 is automatically locked, the motor module 42 drives the clutch gear 441 to rotate clockwise along the rotation axis A through the transmission gear set 43 , and at this time, the pushing projection 4412 will push against the stop The stop portion 4431 of the component 443 (as shown in (i) and (ii) of FIG. 7C ), further drives the coupling component 442 and the linked transmission rod 46 to rotate. Similarly, when the transmission rod 46 rotates and the lock detection module 453 outputs a detection signal of "1, 0" (as shown in (ii) of FIG. 7A ), indicating that the latch bolt 32 has extended to the locking position (as shown in (ii) of FIG. 7B ). Subsequently, the motion detection circuit board 45 controls the motor module 42 to drive the clutch gear 441 to reverse, that is, the clutch gear 441 rotates counterclockwise. At this time, the pushing projection 4412 will break away from the stopper 4431 and no longer interfere with each other, and when the carriage return detection module 452 of the motion detection circuit board 45 detects that one of the sensing points 4414 passes through the first round in sequence After the vehicle detection unit 4521 and the second vehicle return detection unit 4522, the clutch gear 441 is stopped to complete the vehicle return procedure (as shown in (iii) of FIG. 7C ). In other possible implementation manners, when the first carriage return detection unit 4521 detects that the sensing point 4414 passes for the first time (as shown in (ii) of FIG. 7C ), the motion detection circuit board 45 immediately turns off the second A carriage return detection unit 4521. Afterwards, when the carriage return detection module 452 detects that one of the sensing points 4414 passes the second carriage return detection unit 4522, it stops the clutch gear 441 from actuating to complete the carriage return procedure (as shown in (iii) of FIG. 7C Show).

Please refer to FIG. 6A to FIG. 7C and FIG. 8 together. FIG. 8 is a flow chart of the carriage return program of the electronic door lock provided by this invention. The carriage return procedure of the electronic door lock is applied to the electronic door lock 1 installed on the door panel. Firstly, when the electronic door lock 1 is electronically controlled, the motor module 42 is used to drive the latch bolt 32 to move in the first direction or the second direction, so that the latch bolt 32 extends to the locked position (step S101 ). In step S101 , the motion detection circuit board 45 controls the motor module 42 to drive the latch bolt 32 to move in the first direction or the second direction. If the motor module 42 completes the operation within the preset predetermined time limit, the lock detection module 453 of the motion detection circuit board 45 still outputs a detection signal of "0, 1", indicating that the latch bolt 32 is not extended. to the locked position; otherwise, if the lock detection module 453 outputs a detection signal of “1, 0” (as shown in (ii) of FIG. 6A or (ii) of FIG. 7A ), it means that the latch bolt 32 has been extended. Go out to the locked position (as shown in (ii) of Figure 6B or (ii) of Figure 7B). In this embodiment, the first direction is left; the second direction is right.

Next, proceed to step S102: perform a carriage return process according to the moving direction when the latch bolt 32 is locked. In step S102, if the latch bolt 32 is moved toward the first direction (as shown in FIG. 6B , ie to the left) for locking, when performing the carriage return procedure, the clutch gear 441 is rotated clockwise for carriage return ( As shown in Figure 6C); if the latch bolt 32 moves towards the second direction (as shown in Figure 7B, i.e. the right side) for locking, when the carriage return program is carried out, the clutch gear 441 is rotated counterclockwise to return car (as shown in Figure 7C).

By the execution of the carriage return program, the pushing projection 4412 of the clutch gear 441 is disengaged from the blocking portion 4431 of the blocking member 443, and the buffering rotation interval is formed between the pushing projection 4412 and the blocking portion 4431, so that This effectively avoids the situation that the user cannot rotate the transmission rod 46 by twisting the operating element 17 due to the clutch gear 441 being stuck.

Next, it is judged whether the carriage return procedure is completed (step S103). In step S103, if the carriage return detection module 452 of the motion detection circuit board 45 does not detect that the sensing point 4414 passes through the second and first carriage return detection units 4522, 4521 in sequence, or passes through the When the first and second carriage return detection units 4521, 4522, or the first or second carriage return detection units 4521, 4522 that are not set to the open state (as shown in Figure 6C and Figure 7C), indicate If the carriage return procedure has not been completed, the judgment result is "No", and step S104 is performed: reporting an error.

In step S104 , the motion detection circuit board 45 generates an error message and sends the error message to the main circuit board 114 (as shown in FIG. 5 ). Then the main circuit board 114 generates an error warning through components such as the operation interface, display interface or speaker unit (not shown in the figure), to notify the user that the electronic door lock 1 may be caused by an installation error or an abnormal internal component. 1 cannot operate normally.

In step S103, if the carriage return detection module 452 of the motion detection circuit board 45 detects that the sensing point 4414 passes through the second and first carriage return detection units 4522 and 4521 or passes through the first and When the second carriage return detection unit 4521, 4522, or the first or second carriage return detection unit 4521, 4522 set to the open state, indicates that the carriage return procedure is completed, then the judgment result is "Yes", at this time The motion detection circuit board 45 controls the motor module 42 to stop driving the clutch gear 441 to complete the carriage return procedure.

Compared with the conventional technology, the transmission kit provided by the invention can drive the latch bolt of the electronic door lock to move in two directions, and can be applied to the door panel of the left switch or the right switch. On the other hand, the setting of the Enter program is used to avoid the internal gear from being stuck, so that the user can easily turn the operating element to release the locked state of the electronic door lock.

In addition, the design of this case is to integrate the sensors for sensing the state of the transmission components, such as: carriage return detection module, lock detection module, etc., and the corresponding sensing structure in the transmission kit. It can effectively avoid the long-term accumulated operating tolerance of the transmission components of the electronic door lock, As a result, the sensor cannot correctly perceive the state of the transmission element, thereby avoiding failure of the transmission element in the electronic door lock. On the other hand, the integrated design of the transmission kit can not only reduce the overall volume, but also make it easy to install in different electronic door locks, thereby reducing the design and manufacturing costs of electronic door locks; It is a creation with great industrial value.

This creation can be modified in various ways by a person who is familiar with the art, but it is not out of the scope of the attached patent application.

A: axis of rotation

M: turn logo

441: clutch gear

4412: Push against the bump

4414: Sensing point

4431: stopper

4521: The first carriage return detection unit

4522: The second carriage return detection unit

171: Knob structure

Claims (32)

An electronic door lock installed on a door panel, including: a first lock body, including a base and a cover; a transmission kit, arranged in the first lock body, including: a gear box, including A lower cover and an upper cover that can be combined, the lower cover has a first through hole and at least one detection opening, the upper cover has a second through hole corresponding to the first through hole; a motor module is installed on the lower cover above; a transmission gear set, pivotally arranged on the lower cover and engaged with the motor module; a transmission rod, the opposite ends of the transmission rod are respectively installed in the first and second through holes; a clutch transmission The module includes: a clutch gear with an opposite first surface and a second surface, the first surface has a groove, and the groove has two opposing projections located on the same rotation path , the center of the groove has a first shaft hole penetrating through it, the second surface has two sensing points located on the same rotation path and oppositely arranged, the transmission rod is passed through the first shaft hole, and the clutch gear pivots It is arranged on the transmission rod and meshes with the transmission gear set; a coupling piece is rotatably fitted in the groove, and is combined with the transmission rod so as to be linked with the transmission rod; and two stoppers pieces, arranged on opposite sides of the combination piece, each of the stoppers has a stopper portion corresponding to each of the pushing projections; and a motion detection circuit board, electrically connected to the motor module, set On the side of the lower cover opposite to the upper cover, the motion detection circuit board has a third surface and a fourth surface opposite, the third surface has a carriage return detection module, and the carriage return detection The detection module is arranged in the at least one detection opening and includes a first carriage return detection unit and a second carriage return detection unit, the first and second carriage return detection units are corresponding to the two sensing The rotation path of the point; a latch assembly has a latch spindle, a latch bolt accommodated in the latch spindle, and a torque blade passing through the latch spindle, and the torque blade passes through passing through the base and connected to one end of the transmission rod passing through the first through hole, and can be used to control the extension and retraction of the latch bolt; wherein, the motor module drives the clutch gear through the transmission gear set, Each of the pushing projections is pushed against the stopper to drive the transmission rod to rotate, and the transmission rod drives the latch screw through the torque blade. The bolt protrudes from the latch spindle to a locking position, and then the motor module drives the clutch gear to reverse, so that each of the pushing projections breaks away from the stopper, when the motion detection circuit board detects the After one of the two sensing points passes through at least one of the first and second carriage return detection units, the clutch gear is stopped to complete the carriage return procedure. The electronic door lock described in item 1 of the scope of the patent application, wherein the transmission rod has a transmission cylinder at one end passing through the first through hole, and the transmission cylinder is provided with two opposite flange structures in the radial direction. The electronic door lock as described in item 2 of the scope of the patent application, wherein the fourth surface has a lock detection module, and the lock detection module includes a first lock detection unit and a second lock detection unit, The first and second locking detection units correspond to the two flange structures. The electronic door lock as described in item 3 of the scope of the patent application, wherein when the latch bolt is completely accommodated in the latch spindle, one of the two flange structures touches the second lock detection unit. The electronic door lock described in item 4 of the scope of patent application, wherein when the latch bolt is at the locked position, the flange structure that originally touched the second lock detection unit is away from the second lock detection unit, The other flange structure moves synchronously and touches the first locking detection unit. The electronic door lock described in item 4 of the scope of patent application, wherein when the latch bolt is at the locked position, the flange structure that originally touched the second lock detection unit is away from the second lock detection unit and and then press the first lock detection unit. The electronic door lock described in item 3 of the scope of the patent application, wherein the lock detection module is a micro switch module. The electronic door lock described in item 1 of the scope of the patent application, wherein the carriage return detection module is a light detection module, and the two sensing points are light reflection points. The electronic door lock described in item 1 of the scope of the patent application, wherein the carriage return detection module is a Hall magnetic sensing module, and the two sensing points are magnetic elements. According to the electronic door lock described in item 1 of the scope of the patent application, a polygonal engaging concave portion is provided on the surface of the coupling member facing the clutch gear. The electronic door lock described in item 10 of the scope of the patent application, wherein the transmission rod is provided with a polygonal engaging block corresponding to the polygonal engaging recess along the radial direction, and the polygonal engaging block and the polygonal engaging recess are mutually snapping, so that the coupling part and the transmission rod are linked. According to the electronic door lock described in claim 10 of the scope of the patent application, the coupling part has a second shaft hole coaxially arranged with the polygonal engaging recess. The electronic door lock described in item 12 of the scope of the patent application further includes an operating element, the cover body has a mounting hole, and the operating element is installed in the mounting hole. The electronic door lock described in item 13 of the scope of the patent application, wherein one end of the transmission rod passing through the second through hole is connected to the operating element through the installation hole. The electronic door lock described in item 14 of the scope of the patent application, wherein one end of the transmission rod passing through the second through hole has a fixed section, and the operating element includes a knob structure and a shaft tube combined with the knob structure part, the shaft tube part is installed in the installation hole and combined with the fixed section. The electronic door lock described in item 1 of the scope of the patent application, wherein the motor module includes a motor body and a worm connected to the motor body. The electronic door lock as described in item 16 of the scope of the patent application, wherein the transmission gear set includes a first composite gear and a second composite gear, and the first composite gear has a first small-diameter ring tooth part and a coaxially arranged ring gear. A first large-diameter ring tooth portion, the second composite gear has a second small-diameter ring tooth portion and a second large-diameter ring tooth portion coaxially arranged. The electronic door lock described in item 17 of the scope of the patent application, wherein the first small-diameter ring gear meshes with the clutch gear, and the first large-diameter ring gear meshes with the second small-diameter ring gear, The second large-diameter ring gear meshes with the worm. In the electronic door lock described in Item 1 of the scope of the patent application, the two stoppers are made of both rigid and elastic materials. A transmission kit, suitable for electronic door locks, comprising: a gear box, including a lower cover and an upper cover that can be combined, the lower cover has a first through hole and at least one detection opening, and the upper cover has a hole corresponding to the first One perforation and one second perforation; a motor module, installed on the lower cover; a transmission gear set, pivoted on the lower cover and meshed with the motor module; a transmission rod, the transmission rod is opposite The two ends of the two holes are respectively pierced through the first and second through holes; a clutch transmission module includes: a clutch gear with a first surface and a second surface opposite to each other, the first surface has a groove, the There are two opposing projections located in the same rotation path in the groove, There is a first shaft hole in the center of the groove, and the second surface has two sensing points located on the same rotation path and oppositely arranged. The transmission rod is passed through the first shaft hole, so that the clutch gear is pivoted. on the transmission rod and meshed with the transmission gear set; a coupling piece, rotatably fitted in the groove, and combined with the transmission rod so as to be linked with the transmission rod; and two stoppers , arranged on opposite sides of the coupling member, each of the stoppers has a stopper portion corresponding to each of the pushing projections; and a motion detection circuit board, electrically connected to the motor module, arranged on On the side of the lower cover opposite to the upper cover, the motion detection circuit board has a third surface and a fourth surface opposite, the third surface has a carriage return detection module, and the carriage return detection The module is arranged in the at least one detection opening and includes a first carriage return detection unit and a second carriage return detection unit, and the first and second carriage return detection units correspond to the two sensing points rotation path. The transmission kit as described in item 20 of the scope of the patent application, wherein the transmission rod has a transmission cylinder at one end passing through the first through hole, and the transmission cylinder is provided with two opposite flange structures in the radial direction. The transmission kit as described in item 21 of the scope of the patent application, wherein the fourth surface has a lock detection module, the lock detection module includes a first lock detection unit and a second lock detection unit, the The first and second lock detection units correspond to the two flange structures, and one of the two flange structures can touch the first lock detection unit or the second lock detection unit. The transmission kit as described in item 22 of the scope of the patent application, wherein the lock detection module is a micro switch module. The transmission kit as described in item 20 of the scope of the patent application, wherein the carriage return detection module is a light detection module, and the two sensing points are light reflection points. The transmission kit as described in item 20 of the scope of the patent application, wherein the carriage return detection module is a Hall magnetic sensing module, and the two sensing points are magnetic elements. The transmission kit as described in item 20 of the scope of the patent application, wherein a polygonal engagement recess is provided on the surface of the coupling member facing the clutch gear. The transmission kit as described in item 26 of the scope of the patent application, wherein the transmission rod is provided with a polygonal engaging block corresponding to the polygonal engaging recess along the radial direction, and the polygonal engaging block and the polygonal engaging recess are engaged with each other Close, so that the coupling part and the transmission rod are linked. The transmission kit as described in claim 26 of the scope of the patent application, wherein the coupling member has a second shaft hole coaxially arranged with the polygonal engaging recess. The transmission kit as described in item 20 of the scope of the patent application, wherein the motor module includes a motor body and a worm connected to the motor body. The transmission kit as described in item 29 of the scope of the patent application, wherein the transmission gear set includes a first compound gear and a second compound gear, and the first compound gear has a first small-diameter ring tooth part and a coaxially arranged The first large-diameter ring tooth portion, the second compound gear has a second small-diameter ring tooth portion and a second large-diameter ring tooth portion coaxially arranged. The transmission kit as described in item 30 of the scope of the patent application, wherein the first small-diameter ring gear meshes with the clutch gear, the first large-diameter ring gear meshes with the second small-diameter ring gear, the The second large-diameter ring gear meshes with the worm. The transmission kit as described in item 20 of the scope of the patent application, wherein the two stoppers are made of both rigid and elastic materials.

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