CN215889675U - Self-suction door lock device for automobile - Google Patents
Self-suction door lock device for automobile Download PDFInfo
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- CN215889675U CN215889675U CN202122365277.2U CN202122365277U CN215889675U CN 215889675 U CN215889675 U CN 215889675U CN 202122365277 U CN202122365277 U CN 202122365277U CN 215889675 U CN215889675 U CN 215889675U
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- 230000007246 mechanism Effects 0.000 claims abstract description 55
- 210000000078 claw Anatomy 0.000 claims abstract description 50
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 230000005669 field effect Effects 0.000 claims description 66
- 238000001514 detection method Methods 0.000 claims description 14
- 230000005611 electricity Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 2
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- 230000000694 effects Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Abstract
A self-sucking door lock device for car is composed of an independent locking unit with locking motor and an independent unlocking unit, an unlocking motor is arranged in the unlocking mechanism, a rotating shaft of the locking motor is connected with a lock catch through a pull rope, the rotating shaft of the unlocking motor is connected with a locking claw through a transmission mechanism, the locking motor and the unlocking motor are respectively and electrically connected with an external controller, the external controller comprises an MCU, an H-bridge driving circuit and a one-way driving circuit, the H-bridge driving circuit is used for driving the locking motor to run, the one-way driving circuit is used for driving the unlocking motor to operate, the one-way driving circuit and the H-bridge driving circuit are respectively in signal connection with the MCU, the self-closing of the door lock can be realized, and the problem that the lock catch and the lock claw are locked and cannot be unlocked can be solved, and the condition that the car door cannot be opened under the emergency condition is avoided.
Description
Technical Field
The utility model relates to the technical field of automobile door locks, in particular to an automobile self-closing door lock device.
Background
Along with the development of science and technology, intelligent control is urged, and an automobile door lock is gradually changed from a single mechanical door lock into an electric door lock, wherein the self-closing door lock in the electric door lock is more and more commonly applied. The self-closing door lock is generally used in a door system of an electric switch such as an electric back door, an electric side sliding door and the like, when the electric door is closed and locked, the door lock can be locked in a half-locking state generally only due to limited driving output of the electric door, and when a controller of the system detects that the door lock is in the half-locking state, the locking device of the self-closing door lock can be controlled to pull the door lock into a full-locking state, so that the electric door lock is closed to a required position. At present, the lock catch of the existing self-suction door lock is fixed on a vehicle door or a vehicle body, a device provided with a lock catch of the door lock is installed on the vehicle body or the vehicle door, when the door is closed, the lock catch is controlled to be locked by a locking motor, when the door is opened, the lock catch is controlled to be separated from the lock catch to be unlocked by an unlocking motor, the lock catch of the door lock is controlled by the unlocking motor and the locking motor, the unlocking motor and the locking motor are both installed on the device provided with the lock catch of the door lock, the unlocking motor and the locking motor are both connected with the lock catch, the operation of the lock catch is controlled by the unlocking motor to realize the unlocking of the electric door, and the operation of the lock catch is controlled by the locking motor to realize the locking of the electric door. Therefore, the automatic suction door lock is easy to be unlocked and locked to interfere, once the locking mechanism fails to lock the locking claw, or the locking claw and the lock catch are not matched in place, the electric door lock is locked, and the emergency handle cannot be unlocked.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides a self-closing door lock device for an automobile, which can realize self-closing of a door lock and solve the problem that a lock catch and a lock claw are locked and cannot be unlocked.
The technical scheme of the utility model is as follows: the utility model provides a car is from closing locks, includes independent locking mechanism and independent release mechanism, be equipped with the motor of locking in the locking mechanism, be equipped with the unblock motor among the release mechanism, a hasp is connected through the cable to the pivot of the motor of locking, the pivot of unblock motor passes through drive mechanism and connects a locking claw, the motor of locking, unblock motor are connected with an external controller electricity respectively, external controller includes MCU, H bridge drive circuit, one-way drive circuit, H bridge drive circuit is used for driving the motor operation of locking, one-way drive circuit is used for driving the motor operation of unblock, one-way drive circuit, H bridge drive circuit equally divide do not with MCU signal connection.
The locking mechanism is provided with a first limit switch, the locking mechanism is provided with a trigger part corresponding to the first limit switch, the unlocking mechanism is provided with a second limit switch, and the unlocking mechanism is provided with a trigger part corresponding to the second limit switch.
The first limit switch is in signal connection with the MCU through the first switch detection loop, the first switch detection loop is used for detecting the position state of the lock catch, the second limit switch is in signal connection with the MCU through the second switch detection loop, and the second switch detection loop is used for detecting the position state of the lock claw.
The transmission mechanism comprises a shifting piece and an unlocking arm, the shifting piece is circumferentially fixed with a rotating shaft of the locking motor, the unlocking arm is circumferentially fixed on a locking claw seat, the locking claw is arranged on the locking claw seat through a torsion spring, and the locking motor drives the unlocking arm through the shifting piece to enable the locking claw to rotate.
The H-bridge driving circuit comprises a first field effect tube, a second field effect tube, a third field effect tube and a fourth field effect tube, the grids of the first field effect tube, the second field effect tube, the third field effect tube and the fourth field effect tube are equally divided to provide PWM control signals through an MCU, the drains of the first field effect tube and the second field effect tube are respectively connected with the positive electrode of a power supply, the source electrode of the first field effect tube and the drain electrode of the third field effect tube are respectively connected with one end of a locking motor, the source electrode of the second field effect tube and the drain electrode of the fourth field effect tube are respectively connected with the other end of the locking motor, and the source electrodes of the third field effect tube and the fourth field effect tube are respectively grounded.
The unidirectional driving circuit comprises a fifth field effect transistor, a grid electrode of the fifth field effect transistor provides a PWM control signal through the MCU, a drain electrode of the fifth field effect transistor is connected with a power supply, a source electrode of the fifth field effect transistor is connected with one end of the unlocking motor, and the other end of the unlocking motor is grounded.
The unlocking mechanism is provided with an emergency handle, and the emergency handle enables the transmission mechanism to control the locking claw to rotate through the shifting block.
Adopt above-mentioned technical scheme: this from inhaling closes door lock simple structure, the overall cost is lower, can realize the auto electric door lock from inhaling, and owing to adopt independent locking mechanism and independent release mechanism, can control the hasp through locking mechanism and lock claw is taut to realize locking, can control lock claw and hasp through release mechanism and break away from the completion unblock, therefore, locking mechanism and release mechanism control different parts respectively and realize locking and unblock, two mechanisms do not have the part of sharing, can separate completely, locking action can not take place mutual interference with the unblock action, even the dead condition of lock claw and hasp card appears, still can make lock claw and hasp break away from through the manual work by the emergent handle of outside setting, realize emergent unblock, can solve current from inhaling the problem that the lock claw can't the unblock because lock claw blocks with the hasp.
The utility model is further described with reference to the drawings and the specific embodiments in the following description.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic block diagram of the circuit of the present invention;
FIG. 3 is a schematic diagram of an H-bridge driver circuit according to the present invention;
FIG. 4 is a schematic diagram of a unidirectional drive circuit of the present invention;
FIG. 5 is a timing diagram illustrating the present invention.
Detailed Description
Referring to fig. 1 to 5, a self-locking door lock device for an automobile includes an independent locking mechanism 10 and an independent unlocking mechanism 11, wherein the locking mechanism 10 is provided with a locking motor 1, and the unlocking mechanism 11 is provided with an unlocking motor 2. The rotating shaft of the locking motor 1 is connected with a lock catch 3 through a guy cable 9, and the rotating shaft of the unlocking motor 2 is connected with a locking claw 4 through a transmission mechanism. Drive mechanism includes plectrum 6, unlocking arm 7, plectrum 6 is fixed with the pivot circumference of locking motor 1, makes locking motor 1 drive plectrum 6 and rotates, the stiff end setting of unlocking arm 7 is on a claw seat 8, and the free end of unlocking arm 7 corresponds with plectrum 6, and the free end that makes plectrum 6 can stir unlocking arm 7 makes unlocking arm 7 rotate, pawl 4 passes through the torsional spring setting on claw seat 8, and locking motor 1 stirs unlocking arm 7 through plectrum 6 and makes pawl 4 rotate to make pawl 4 loosen hasp 3, and the effect of torsional spring is automatic ejection down, realizes the unblock from this. The unlocking mechanism 11 is provided with an emergency handle, the emergency handle enables the transmission mechanism to control the locking claw 4 to rotate through the shifting block, and when the locking claw 4 and the lock catch 3 are clamped, the emergency handle can be manually rotated to enable the locking claw 4 to rotate for unlocking.
The locking motor 1 and the unlocking motor 2 are respectively and electrically connected with an external controller 5, the external controller 5 comprises an MCU (microprogrammed control unit), an H-bridge driving circuit and a one-way driving circuit, the H-bridge driving circuit is used for driving the locking motor 1 to operate, and the H-bridge driving circuit can drive the locking motor 1 to rotate positively or negatively, so that the lock catch 3 can tighten the lock claw 4 when being locked and can release the lock claw 4 when being unlocked, and the locking and unlocking can be smoothly realized. The one-way driving circuit is used for driving the unlocking motor 2 to operate, so that the unlocking motor 2 can drive the locking claw 4 to rotate to complete unlocking. The unidirectional driving circuit and the H-bridge driving circuit are respectively in signal connection with the MCU, and the operation of the unidirectional driving circuit and the H-bridge driving circuit is controlled by the MCU.
The locking mechanism 10 is provided with a first limit switch, a trigger part is arranged in the locking mechanism 10 and corresponds to the first limit switch, the first limit switch is in signal connection with the MCU through a first switch detection loop, the first switch detection loop is used for detecting the position state of the lock catch 3, the first switch detection loop of the embodiment can adopt a pull-up resistor, one end of the pull-up resistor is connected with a power supply, the other end of the pull-up resistor is respectively connected with one end of the first limit switch and a signal receiving end of the MCU, the other end of the first limit switch is grounded, when the lock catch 3 is in a non-full-locking state, the first limit switch is in contact with the trigger part, the MCU detects a low level, otherwise, when the lock catch 3 is in a full-locking state, the first limit switch is disconnected with the ground, and under the action of the pull-up resistor, the MCU detects a high level. The unlocking mechanism 11 is provided with a second limit switch, the unlocking mechanism 11 is provided with a triggering part corresponding to the second limit switch, the second limit switch of the embodiment can be arranged on the claw seat 8, the locking claw 4 is provided with a triggering part corresponding to the first limit switch, so that the second limit switch can be triggered when the locking claw 4 rotates in place, the second limit switch is in signal connection with the MCU through a second switch detection loop, the second switch detection loop is used for detecting the position state of the locking claw 4, the second switch detection loop can adopt a pull-up resistor, one end of the pull-up resistor is connected with a power supply, the other end of the pull-up resistor is respectively connected with one end of the second limit switch and a signal receiving end of the MCU, the other end of the second limit switch is grounded, when the locking claw 4 is in an open state, the second limit switch is in contact with the MCU corresponding to detect a low level, when the locking claw 4 is in a closed state, the second limit switch is disconnected with the ground, and under the action of the pull-up resistor, the MCU detects a high level.
The H-bridge driving circuit comprises a first field-effect tube K1, a second field-effect tube K2, a third field-effect tube K3 and a fourth field-effect tube K4, the grids of the first field-effect tube K1, the second field-effect tube K2, the third field-effect tube K3 and the fourth field-effect tube K4 are respectively provided with PWM control signals through an MCU, the on-off of each field-effect tube is controlled by the PWM control signals, the drains of the first field-effect tube K1 and the second field-effect tube K2 are respectively connected with the positive electrode of a power supply, the source of the first field-effect tube K1 and the drain of the third field-effect tube K3 are respectively connected with one end of the lock motor 1, the source of the second field-effect tube K2 and the drain of the fourth field-effect tube K4 are respectively connected with the other end of the lock motor 1, and the sources of the third field-effect tube K3 and the fourth field-effect tube K4 are respectively grounded. When the MCU controls the first field effect transistor K1 and the fourth field effect transistor K4 to be switched on and controls the second field effect transistor K2 and the third field effect transistor K3 to be switched off, the locking motor 1 rotates forwards; when the MCU controls the second fet K2 and the third fet K3 to be turned on and controls the first fet K1 and the fourth fet K4 to be turned off, the locking motor 1 rotates reversely.
The one-way driving circuit comprises a fifth field effect transistor K5, a grid electrode of the fifth field effect transistor K5 provides a PWM control signal through an MCU, a drain electrode of the fifth field effect transistor K5 is connected with a power supply, a source electrode of the fifth field effect transistor K5 is connected with one end of the unlocking motor 2, the other end of the unlocking motor 2 is grounded, the one-way driving circuit is controlled by a MOSFET to realize high-side on-off control, when the MCU controls the fifth field effect transistor K5 to be opened, the power supply is switched on, the unlocking motor 2 rotates in a one-way mode, and the locking claw 4 acts to realize unlocking.
When the self-closing door lock device is used, the self-closing door lock device operates according to the time sequence shown in fig. 5, when a user presses an unlocking switch, the external controller 5 controls the locking motor 1 to operate, so that the lock catch 3 and the lock claw 4 are released, at the moment, the external controller 5 detects that the lock catch 3 is in a non-full-locking state through the first limit switch, then the external controller 5 controls the unlocking motor 2 to operate, so that the lock claw 4 is automatically ejected, the door is unlocked, and the second limit switch is in an opening state; when the lock catch is manually pulled to a half-locking state with small force or the vehicle door is automatically pulled to a half-locking state, the external controller 5 detects that the locking claw 4 is in a closing state through the second limit switch, immediately drives the locking motor 1 to operate, performs electric suction action, and enables the lock catch 3 to tighten the locking claw 4, so that the vehicle door is tightened and the vehicle door is closed to a required position.
The utility model can realize self-closing of the electric door lock of the automobile, and because the independent locking mechanism 10 and the independent unlocking mechanism 11 are adopted, the locking mechanism 10 directly controls the lock catch 3 to realize locking, the unlocking mechanism 11 directly controls the lock claw 4 to realize unlocking, therefore, the locking mechanism 10 and the unlocking mechanism 11 are respectively controlled by different parts to realize locking and unlocking, the two mechanisms do not share the same part and can be completely separated, the locking mechanism 10 does not control the locking claw 4, the unlocking mechanism 11 does not control the lock catch 3, the locking action and the unlocking action do not interfere with each other, even if the locking claw 4 and the lock catch 3 are locked, the locking claw 4 and the lock catch 3 can still be separated manually by an emergency handle arranged outside to realize emergency unlocking, therefore, the problem that the existing self-suction door lock cannot be unlocked due to the fact that the locking claw and the lock catch are clamped is solved. Moreover, the self-closing door lock has the advantages of simple structure and lower overall cost, and has more advantages in the aspect of upgrading the common door lock system into the self-closing door lock.
Claims (7)
1. The utility model provides a car is from closing door lock device which characterized in that: including independent locking mechanism (10) and independent release mechanism (11), be equipped with locking motor (1) in the locking mechanism, be equipped with unlocking motor (2) in the release mechanism, a hasp (3) is connected through cable (9) in the pivot of locking motor (1), a locking claw (4) is connected through drive mechanism in the pivot of unlocking motor (2), locking motor (1), unlocking motor (2) are connected with an external control ware (5) electricity respectively, external control ware (5) include MCU, H bridge drive circuit, one-way drive circuit, H bridge drive circuit is used for driving locking motor (1) operation, one-way drive circuit is used for driving unlocking motor (2) operation, one-way drive circuit, H bridge drive circuit divide equally do not with MCU signal connection.
2. The self-closing door lock device for vehicles as claimed in claim 1, wherein: the locking mechanism is provided with a first limit switch, the locking mechanism is provided with a trigger part corresponding to the first limit switch, the unlocking mechanism is provided with a second limit switch, and the unlocking mechanism is provided with a trigger part corresponding to the second limit switch.
3. The self-closing door lock device for vehicles as claimed in claim 2, wherein: the first limit switch is in signal connection with the MCU through a first switch detection loop, the first switch detection loop is used for detecting the position state of the lock catch (3), the second limit switch is in signal connection with the MCU through a second switch detection loop, and the second switch detection loop is used for detecting the position state of the lock claw (4).
4. The self-closing door lock device for vehicles as claimed in claim 1, wherein: the transmission mechanism comprises a shifting piece (6) and an unlocking arm (7), wherein the shifting piece (6) is fixed with the rotating shaft of the locking motor (7) in the circumferential direction, the unlocking arm (7) is arranged on a locking claw seat (8), the locking claw (4) is arranged on the locking claw seat (8) through a torsion spring, and the locking motor (1) is used for shifting the unlocking arm (7) through the shifting piece (6) to enable the locking claw (4) to rotate.
5. The self-closing door lock device for vehicles as claimed in claim 1, wherein: the H-bridge driving circuit comprises a first field effect tube, a second field effect tube, a third field effect tube and a fourth field effect tube, the grids of the first field effect tube, the second field effect tube, the third field effect tube and the fourth field effect tube are equally divided to provide PWM control signals through an MCU, the drains of the first field effect tube and the second field effect tube are respectively connected with the positive electrode of a power supply, the source electrode of the first field effect tube and the drain electrode of the third field effect tube are respectively connected with one end of a locking motor, the source electrode of the second field effect tube and the drain electrode of the fourth field effect tube are respectively connected with the other end of the locking motor, and the source electrodes of the third field effect tube and the fourth field effect tube are respectively grounded.
6. The self-closing door lock device for vehicles as claimed in claim 1, wherein: the unidirectional driving circuit comprises a fifth field effect transistor, a grid electrode of the fifth field effect transistor provides a PWM control signal through the MCU, a drain electrode of the fifth field effect transistor is connected with a power supply, a source electrode of the fifth field effect transistor is connected with one end of the unlocking motor, and the other end of the unlocking motor is grounded.
7. The self-closing door lock device for vehicles as claimed in claim 1, wherein: an emergency handle is arranged on the unlocking mechanism, and the emergency handle enables the transmission mechanism to control the locking claw (4) to rotate through the shifting block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122365277.2U CN215889675U (en) | 2021-09-28 | 2021-09-28 | Self-suction door lock device for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122365277.2U CN215889675U (en) | 2021-09-28 | 2021-09-28 | Self-suction door lock device for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215889675U true CN215889675U (en) | 2022-02-22 |
Family
ID=80348198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122365277.2U Active CN215889675U (en) | 2021-09-28 | 2021-09-28 | Self-suction door lock device for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215889675U (en) |
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2021
- 2021-09-28 CN CN202122365277.2U patent/CN215889675U/en active Active
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