CN115749472A - Vehicle door lock electric release and opening system and method - Google Patents
Vehicle door lock electric release and opening system and method Download PDFInfo
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- CN115749472A CN115749472A CN202211476443.9A CN202211476443A CN115749472A CN 115749472 A CN115749472 A CN 115749472A CN 202211476443 A CN202211476443 A CN 202211476443A CN 115749472 A CN115749472 A CN 115749472A
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- rocker arm
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Abstract
The invention relates to a car door lock electricity release and open system and method, the system includes car door lock assembly and drawing wire, the car door lock assembly includes ratchet wheel sub-assembly and pawl sub-assembly, there are electrical machinery and drive mechanism in the outer casing of the car door lock assembly, the output gear of the drive mechanism connects with joint of drawing wire, mount the electricity and release the rocker arm on the output gear shaft, both sides of spindle of the electricity release rocker arm set up long rocker arm and radial lobe block separately, one side of the long rocker arm is laminated to the boss of the output gear, another side is butted at the end of the slide block, the peripheral surface of the radial lobe block has convex-concave working surfaces, the contact of the neutral position signal switch set up on the electrical machinery contacts with working surface of the radial lobe block; the sliding block is arranged in the shell in a sliding mode, and the sliding block is abutted to a pawl connecting arm on the pawl subassembly; the method includes a door latch electrical release process and reset and deployment of the hidden outer handle. The invention improves the integration level of the door lock mechanism, simplifies the mechanism and reduces the volume of the whole system.
Description
Technical Field
The invention belongs to the field of new energy automobiles, and particularly relates to a system and a method for electrically releasing and opening a vehicle door lock.
Background
Under the background of national new energy automobile of energetically developing, the electric automobile project progressively increases, compares with the mechanical release lock of traditional car + the door shutting opening system of protruding formula outer handle, and a lot of new energy automobile have all adopted this kind of novel door shutting of electric release lock + hidden outer handle and opening system, have reduced the windage, increase scientific and technological sense, usher's ceremony sense, operating comfort etc..
At present, the door locking and opening systems commonly used in the new energy automobile industry mainly include the following three types: .
1. Electric release door lock and manual hidden type outer handle
When the vehicle is in an unlocking state, the outer handle can be unfolded only by manually pressing the wider part of the outer handle, so that the welcome fashion sense is avoided, and the manual operation comfort is poor. The car door is opened in the car, the electricity is released by manually pressing a button on the inner handle, and then the car door is opened.
2. Mechanical release door lock and self-driving hidden type outer handle
The automobile door closing and opening system comprises a mechanical release door lock and a self-driven hidden type outer handle, wherein an actuator for electrically unfolding the outer handle is arranged on the outer handle, the outer handle can be driven to be automatically unfolded, then the outer handle is pulled to open the automobile door, and the automobile door is opened by pulling an inner handle in the automobile. The defects of poor operation comfort, high cost, complex structure, larger weight and occupying larger space in the vehicle door sheet metal.
3. Electric release door lock and semi-concealed external handle
In such systems, the handle is pulled to electrically release the door latch and then open the door by activating a signal switch under the handle. A cavity is arranged below the handle, wind resistance can be generated, the appearance is not attractive, the handle is a fixed type outer handle, and the welcome ceremony feeling is avoided.
With the pursuit of luxury and heat and tide perception in each host factory, the requirements of cost performance are considered under the condition of keeping the advantages of attractive appearance, wind resistance, guest greeting and ceremony feeling, operation comfort and the like unchanged, so that the novel vehicle door locking and opening system is developed to meet the requirements of various automobile manufacturers.
Disclosure of Invention
The invention aims to provide a vehicle door lock electric release and unlocking system and a vehicle door lock electric release and unlocking method.
In order to achieve the purpose, the invention adopts the technical scheme that: a car door lock electrical release and opening system comprises a car door lock assembly and a stay wire, wherein the car door lock assembly comprises a ratchet wheel sub-assembly and a pawl sub-assembly, a motor and a transmission mechanism are arranged in a shell of the car door lock assembly, an output gear of the transmission mechanism is connected with a joint of the stay wire, an electrical release rocker arm is mounted on an output gear shaft, a long rocker arm and a radial bump are respectively arranged on two sides of a rotating shaft of the electrical release rocker arm, one side of the long rocker arm is attached to a boss of the output gear, the other side of the long rocker arm is abutted to the end part of a sliding block, a convex-concave working surface is arranged on the circumferential surface of the radial bump, a neutral position signal switch is arranged on the motor, and a contact of the neutral position signal switch is contacted with the working surface of the radial bump; the slider slides and sets up in the shell, and the pawl linking arm butt on slider and the pawl subassembly.
The transmission mechanism further comprises a worm, a duplicate gear and a secondary gear, the worm is installed on a rotating shaft of the motor, the duplicate gear is meshed with the worm and the secondary gear, and the secondary gear is meshed with the duplicate gear and the output gear.
The radial convex blocks are of fan-shaped structures.
The working surface is wavy and comprises a trough and wave crests on two sides of the trough.
The invention also provides a door lock electric release control method based on the door lock electric release and opening system scheme, which comprises a door lock electric release and reset process, and the specific steps are as follows: (1) The motor is started, the output gear is driven to rotate by the transmission mechanism, the sliding block is pushed to slide by the electric release rocker arm, the sliding block drives the pawl subassembly to rotate through the pawl linkage arm so as to disengage the ratchet wheel subassembly, and the ratchet wheel subassembly rotates to a full-open position under the action of a reaction force to complete electric release action; (2) The motor drives the output gear to rotate reversely through the transmission mechanism, the sliding block slides under the action of the pawl return spring to push the electric release rocker arm to reset, the radial convex block of the electric release rocker arm triggers the neutral position signal switch, the motor stops working, and the resetting action is finished.
The invention also provides a method for electrically unfolding the hidden outer handle of the vehicle door lock on the basis of the scheme of the vehicle door lock electric release and opening system, which comprises the following specific steps: (1) The motor is started, the output gear is driven by the transmission mechanism to wind a pull wire connected with the hidden outer handle, the sliding block pushes the electric release rocker arm to rotate under the action of the pawl return spring, the wave crest of the radial convex block on the electric release rocker arm extrudes the contact of the neutral position signal switch to trigger the handle to unfold in-place signal, and the vehicle door lock stops the action of unfolding the hidden outer handle; (2) The motor drives the output gear to rotate reversely through the transmission mechanism, meanwhile, the pull wire is pulled out under the action of handle return force, the output gear pushes the sliding block to slide through the electric release rocker arm until the wave trough of the radial convex block of the electric release rocker arm extrudes the contact of the neutral position signal switch, the motor stops acting, and the action of the vehicle door lock for electrically unfolding the hidden outer handle is finished.
The invention has the beneficial effects that: the door lock electric release and opening system is used for a hidden handle, does not need a separate actuator for unfolding and folding the handle, and can realize the functions of unfolding and folding the outer handle and electrically releasing the door lock only by a set of transmission mechanism in the door lock. The invention improves the integration level of the door lock mechanism, reduces the overall quality of the outer handle, reduces the volume of the outer handle, saves the installation space of the outer handle in the door sheet metal, and is convenient for a host factory to select and arrange the door lock and the outer handle; the actuators for expanding and retracting the hidden outer handle are reduced, and the use cost of a host factory and a supplier is reduced.
Drawings
FIG. 1 is an exploded view of the major components of the door lock assembly of the present invention;
FIG. 2 is a schematic view of the door lock assembly and outer handle connection of the present invention;
FIG. 3 is a schematic view of a neutral position of the door lock assembly transmission system of the present invention;
FIG. 4 is a schematic view of the structure inside the lock body when the outer handle is deployed in place according to the present invention;
FIG. 5 is a schematic view of the door latch assembly in a fully latched state;
FIG. 6 is a schematic view of the door latch in an electrically released state;
FIG. 7 is a schematic view of a door lock in a fully open position;
FIG. 8 is a schematic diagram of the movement of the door latch during electrical release;
FIG. 9 is a schematic view of the pawl, ratchet and latch movement during electrical release of the vehicle door latch;
FIG. 10 is a schematic diagram of the movement of the door latch during the electrical release reset process;
FIG. 11 is a schematic view of the door latch electrically released to return to a neutral position.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and examples, but the invention is not limited thereto.
The invention provides a door lock electric release and opening system, which mainly relates to a door lock assembly 200 and a pull wire 100, wherein the door lock assembly 200 is connected with a hidden outer handle 300 of a vehicle through the pull wire 100. When a driver and a passenger carry a legal key to get close to the vehicle to reach a specified distance, the hidden outer handle 300 is automatically unfolded to realize the welcome function, and at the moment, the outer handle is pulled to trigger a signal switch to electrically release the door lock and then open the vehicle door; when the vehicle is in an unlocking state, the rear end of the hidden outer handle is lightly pressed to trigger a switch signal, the outer handle is automatically unfolded, the outer handle is pulled to trigger the signal switch, the door lock is electrically released, and the door of the vehicle is opened; the hidden outer handle can be unfolded by pressing the unlocking key in the vehicle, so that the vehicle door can be opened from the outside; after the automobile enters the automobile, the outer handle can be retracted through methods such as a vehicle locking button or a vehicle speed sensor.
The invention mainly improves the structure of the vehicle door lock assembly, does not need to use a separate actuator for unfolding and folding the handle, and can realize the functions of unfolding and folding the outer handle and electrically releasing the door lock only by a set of transmission mechanism in the door lock.
As shown in fig. 1, the main parts of the door lock assembly related to the door lock electricity releasing and unfolding the outer handle are: the device comprises a bottom plate 2, a ratchet wheel sub-assembly 3, a pawl sub-assembly 6, a pawl shaft 56, a ratchet wheel shaft 57, a lock notch support 35, a pawl linkage arm 8, a ratchet wheel return spring 69, a pawl return spring 70, a ratchet wheel linkage arm 5, an upper cover plate 26, a sliding block 19, a shell 37, a duplicate gear shaft 54, an output gear shaft 55, a motor 28, a worm 29, an output gear 33, a duplicate gear 31, a secondary gear 32, an electric release rocker arm 34, a cover plate 36, a neutral position signal switch 46 and a pull wire 100.
The connection relation of the main parts is as follows: with continued reference to fig. 1, the housing of the door latch assembly is composed of a base plate 2, a latch bracket 35, a housing 37 and a cover plate 36, a pawl shaft 56 and a ratchet shaft 57 are riveted to the base plate 2, the latch bracket 35 is installed on the base plate 2 through the pawl shaft 56 and the ratchet shaft 57, the housing 37 is assembled with the latch bracket 35 through a snap, and the cover plate 36 is assembled on the housing 37. The ratchet wheel sub-assembly 3 and the pawl sub-assembly 6 are respectively arranged on corresponding shafts in a rotating mode; the pawl linkage arm 8 is arranged on the pawl shaft 56 and is embedded in a square hole on the pawl subassembly 6; a pawl return spring 70 is arranged on a convex column of the fore shaft bracket 35, one end of the pawl return spring 70 is hung on the pawl subassembly 6, and the other end is fixed on a corresponding structure of the fore shaft bracket 35; the ratchet wheel linkage arm 5 and the ratchet wheel return spring 69 are arranged on the ratchet wheel shaft 57, one end of the ratchet wheel return spring 69 is fixed in the groove of the ratchet wheel linkage arm 5, and the other end is blocked on the fore shaft bracket 35; the upper cover plate 26 is assembled on the ratchet shaft 57 and the pawl shaft 56; the slide block 19 is slidably mounted on the shell 37, and the end part of the slide block 19 abuts against the pawl linkage arm 8; two duplicate gear shafts 54 are arranged, and the two duplicate gear shafts 54 and one output gear shaft 55 are respectively arranged in corresponding mounting holes on the shell 37; the motor 28 is arranged on the corresponding position of the shell 37, the motor 28 and the slide block 19 are respectively positioned at two sides of the dual gear shaft 54 and the output gear shaft 55, and the output shaft of the motor 28 is connected with the worm 29; the duplicate gear 31 and the secondary gear 32 are respectively arranged on two duplicate gear shafts 54, the output gear 33 is arranged on an output gear shaft 55, a large gear of the duplicate gear 31 is meshed with the worm 29, a small gear is meshed with a large gear of the secondary gear 32, and a small gear of the secondary gear 32 is meshed with the output gear 33 to form a transmission mechanism in the lock; the stay wire passes through the mounting hole of the shell 37, and the connector of the stay wire is mounted in the kidney-shaped groove of the output gear 33; the electric release rocker arm 34 and the output gear 33 are coaxially installed and can rotate on the output gear 33, a boss 3301 for pushing the electric release rocker arm 34 to rotate towards the slider 19 is arranged on the output gear 33, a long rocker arm 3401 and a radial bump 3402 are respectively arranged on two sides of a rotating shaft of the electric release rocker arm 34, the long rocker arm 3401 extends out of the output gear 34 and can be abutted against the end part of the slider 19, a wave-shaped action surface is arranged on the radial bump 3402 and comprises two continuous wave crests and a wave trough, a neutral position signal switch 46 is fixedly arranged on the motor 28, and in the rotating process of the electric release rocker arm 34, a contact of the neutral position signal switch 46 is triggered by different parts of the action surface of the radial bump 34 to generate corresponding results.
The function of the door lock assembly described above is further described below.
1. Electric unfolding and retracting hidden type outer handle of vehicle door lock
(1) Vehicle door lock unfolding hidden type outer handle
As shown in fig. 3, before the hidden outer handle is unfolded, the transmission system in the door lock is in a neutral position, at this time, the contact of the neutral position signal switch 46 is positioned at the working surface trough of the radial projection 3402 on the electric release rocker arm 34, at this time, the boss 3301 on the output gear 33 is blocked at the side of the electric release rocker arm 34, so that the long rocker arm 3401 of the electric release rocker arm 34 presses the sliding block 19, and the spring on the sliding block 19 is compressed. When the hidden type outer handle needs to be unfolded, the motor 28 is started to drive the worm 29 to drive the duplicate gear 31 to rotate (the rotating direction is the clockwise direction shown by an arrow 110 in fig. 3); the dual gear 31 drives the secondary gear 32 to rotate (the rotation direction is the counterclockwise direction indicated by an arrow 120 in fig. 3), the secondary gear 32 drives the output gear 33 to rotate (the rotation direction is the clockwise direction indicated by an arrow 130 in fig. 3), when the output gear 33 rotates, a steel wire of a pull wire is wound in a concave groove of the output gear 33, the pull wire is pulled along the arrow 140 direction in the drawing, and the other end of the pull wire is connected to the hidden handle; after the output gear 33 rotates, the boss 3301 releases the blocking of the electric release rocker arm 34, and then the slider 19 slides along the direction indicated by the arrow 150 under the action of the spring force of the pawl return spring 70 to push the electric release rocker arm 34 to rotate, the radial bump 3402 of the electric release rocker arm 34 rotates along with the electric release rocker arm, when the output gear 33 rotates for a certain angle, the hidden outer handle is unfolded to a set position, the position is maintained by an inner mechanical structure of the handle, at the moment, the position of the electric release rocker arm 34 is shown in fig. 4, the wave crest of the working surface of the radial bump 3402 extrudes the contact of the neutral position signal switch 46 to trigger a handle unfolding in-place signal, and the door lock stops the action of unfolding the hidden outer handle.
(2) Reset of vehicle door lock after unfolding hidden outer handle
After the hidden outer handle is unfolded, as shown in fig. 4, in the resetting process, the motor 28 drives the worm 29 to drive the dual gear 31 to rotate (the rotation direction is the counterclockwise direction indicated by the arrow 160 in fig. 4), the dual gear 31 drives the secondary gear 32 to rotate (the rotation direction is the clockwise direction indicated by the arrow 170 in fig. 4), the secondary gear 32 drives the output gear 33 to rotate (the rotation direction is the counterclockwise direction indicated by the arrow 180 in fig. 4), at this time, the wire extends out from the groove of the output gear 33 under the action of the handle return force (the extension direction is the direction indicated by the arrow 190 in the figure), when the output gear 33 rotates, the boss 3301 on the wire drives the electric release rocker 34 to rotate around the output gear shaft 55, the electric release rocker 34 pushes the slider 19 to slide (the slide direction is the right direction indicated by the arrow 200 in the figure), until the radial protrusion 3401 on the electric release rocker 34 triggers the position signal switch 46 (i.e. the position of the radial protrusion in fig. 3), the motor 28 stops, the resetting action stops, and the action of the door lock electrically unfolding the outer handle is finished.
2. Electric withdrawing hidden type outer handle for door lock
When the lock button is pressed in the vehicle or the vehicle speed reaches a set value, the BCM sends out an outer handle retraction signal, and the door lock performs the same action as that of unfolding the hidden outer handle again, which is not described in detail herein.
3. Electrical release of vehicle door lock
(1) The electricity release function of the door lock refers to: the door lock motor can drive the transmission mechanism to push the pawl subassembly 6 from the fully locked position shown in fig. 5 to the electrical release position shown in fig. 6, so that the ratchet wheel subassembly 3 and the pawl subassembly 6 are disengaged from the fully locked position, the door lock and the door lock push the door lock under the reaction force of the sealing strip, so that the ratchet wheel subassembly 3 moves to the fully opened state, the door is opened, and the state of the door lock and the lock catch 400 is shown in fig. 7.
(2) The electricity release process of the door lock is as follows: when the door lock performs an electrical release operation, the motor 28 drives the worm 29 to rotate, so as to drive the dual gear 31 to rotate (the rotation direction is the counterclockwise direction indicated by the arrow 210 in fig. 8), the dual gear 31 drives the secondary gear 32 to rotate (the rotation direction is the clockwise direction indicated by the arrow 220 in fig. 8), and the secondary gear 32 drives the output gear 33 to rotate (the rotation direction is the counterclockwise direction indicated by the arrow 230 in fig. 8); the boss 3301 on the output gear 33 pushes the electric release rocker arm 34 to rotate together around the output gear shaft 55; the electrical release rocker arm 34 pushes the slider 19 to slide (in a downward direction indicated by an arrow 240 in fig. 8) through the long rocker arm, the slider 19 pushes the pawl linkage arm 8 to rotate, the pawl linkage arm 8 and the pawl subassembly 6 are assembled together, and thus the pawl subassembly 6 simultaneously rotates around the pawl shaft 56 (the rotation direction is indicated by an arrow 250 in fig. 9); when the pawl subassembly 6 and the ratchet subassembly 3 are disengaged, the door is pushed away from the latch by the reaction force of the weather strip, and at this time, the ratchet subassembly 3 rotates around the ratchet shaft 57 under the action of the reaction force (the rotation direction is the direction indicated by the arrow 260 in fig. 9), and the ratchet subassembly 3 returns to the full open position, as shown in fig. 7, and the electrical release action is completed.
(3) Reset after door lock electricity release
As shown in fig. 10, the motor 28 drives the worm 29 to rotate in the reverse direction, so as to drive the dual gear 31 to rotate (the rotation direction is the clockwise direction indicated by the arrow 270 in fig. 10), the dual gear 31 drives the secondary gear 32 to rotate (the rotation direction is the counterclockwise direction indicated by the arrow 280 in fig. 10), and the secondary gear 32 drives the output gear 33 to rotate (the rotation direction is the clockwise direction indicated by the arrow 290 in fig. 10); the slide block 19 abuts against the long rocker arm 3401 of the electric release rocker arm 34 under the action of the pawl return spring 70, the long rocker arm 3401 of the electric release rocker arm 34 abuts against the boss 3301 on the output gear 33, and therefore when the output gear 33 rotates, the slide block 19 slides upwards to be reset according to the direction indicated by an arrow 300 in fig. 10; the pawl linkage arm 8 abuts against the slide block 19 and rotates around the pawl shaft 56 (the rotation direction is shown by an arrow 310 in fig. 11) together with the pawl subassembly 6 under the action of the pawl return spring 70 until the pawl linkage arm is limited by the structure of the lock opening bracket 35; when the output gear 33 and the electric release rocker arm 34 move to a position where the radial projection 3401 on the electric release rocker arm 34 triggers the neutral position signal switch 46, the motor 28 stops operating, the transmission mechanism stops at the neutral position (i.e., fig. 3), and the reset operation is finished.
The above embodiments are only intended to illustrate the technical solution of the present invention and not to limit the same, and it should be understood by those of ordinary skill in the art that the specific embodiments of the present invention can be modified or substituted with equivalents with reference to the above embodiments, and any modifications or equivalents without departing from the spirit and scope of the present invention are within the scope of the claims to be appended.
Claims (6)
1. The utility model provides a door lock electricity release and opening system, includes door lock assembly and acts as go-between, and door lock assembly includes ratchet subassembly and pawl subassembly, its characterized in that: a motor and a transmission mechanism are arranged in a shell of the vehicle door lock assembly, an output gear of the transmission mechanism is connected with a joint of the stay wire, an electric release rocker arm is mounted on an output gear shaft, a long rocker arm and a radial bump are respectively arranged on two sides of a rotating shaft of the electric release rocker arm, one side of the long rocker arm is attached to a boss of the output gear, the other side of the long rocker arm abuts against the end part of the sliding block, a convex-concave working surface is arranged on the circumferential surface of the radial bump, a neutral position signal switch is arranged on the motor, and a contact of the neutral position signal switch is contacted with the working surface of the radial bump; the slider slides and sets up in the shell, and the pawl linking arm butt on slider and the pawl subassembly.
2. The vehicle door latch electrical release and unlatching system of claim 1, wherein: the transmission mechanism further comprises a worm, a duplicate gear and a secondary gear, the worm is installed on a rotating shaft of the motor, the duplicate gear is meshed with the worm and the secondary gear, and the secondary gear is meshed with the duplicate gear and the output gear.
3. The vehicle door latch electrical release and unlatching system of claim 1, wherein: the radial convex blocks are of fan-shaped structures.
4. The vehicle door latch electrical release and opening system of claim 3, wherein: the working surface is wavy and comprises a trough and wave crests on two sides of the trough.
5. A vehicle door lock electric release control method is characterized in that: the method adopts the vehicle door lock electric release and unlocking system as defined in any one of claims 1 to 4, comprising the vehicle door lock electric release and reset process, and comprises the following specific steps: (1) The motor is started, the output gear is driven to rotate by the transmission mechanism, the sliding block is pushed to slide by the electric release rocker arm, the sliding block drives the pawl subassembly to rotate through the pawl linkage arm so as to disengage the ratchet wheel subassembly, and the ratchet wheel subassembly rotates to a full-open position under the action of a reaction force to complete electric release action; (2) The motor drives the output gear to rotate reversely through the transmission mechanism, the sliding block slides under the action of the pawl return spring to push the electric release rocker arm to reset, the radial convex block of the electric release rocker arm triggers the neutral position signal switch, the motor stops working, and the resetting action is finished.
6. A method for electrically unfolding a hidden outer handle of a vehicle door lock is characterized in that: the method adopts the vehicle door lock electric release and unlocking system as defined in any one of claims 1 to 4, and comprises the following specific steps: (1) The motor is started, the output gear is driven by the transmission mechanism to wind a pull wire connected with the hidden outer handle, the sliding block pushes the electric release rocker arm to rotate under the action of the pawl return spring, the wave crest of the radial convex block on the electric release rocker arm extrudes a contact of the neutral position signal switch to trigger the handle to be unfolded to-place, and the door lock stops the action of unfolding the hidden outer handle; (2) The motor drives the output gear to rotate reversely through the transmission mechanism, meanwhile, the pull wire is pulled out under the action of handle return force, the output gear pushes the sliding block to slide through the electric release rocker arm until the contact of the neutral position signal switch is positioned in the wave trough of the radial convex block of the electric release rocker arm, a neutral position signal is output, the motor stops acting, and the action of the vehicle door lock for electrically unfolding the hidden outer handle is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211476443.9A CN115749472B (en) | 2022-11-23 | 2022-11-23 | Electric release and unlocking system and method for door lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211476443.9A CN115749472B (en) | 2022-11-23 | 2022-11-23 | Electric release and unlocking system and method for door lock |
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| Publication Number | Publication Date |
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| CN115749472A true CN115749472A (en) | 2023-03-07 |
| CN115749472B CN115749472B (en) | 2023-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211476443.9A Active CN115749472B (en) | 2022-11-23 | 2022-11-23 | Electric release and unlocking system and method for door lock |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798035A (en) * | 2019-03-25 | 2019-05-24 | 无锡忻润汽车安全系统有限公司 | A kind of automobile built-in handle power-off emergency opening device |
| WO2020036373A1 (en) * | 2018-08-13 | 2020-02-20 | Woobo Tech Co., Ltd. | Integrated apparatus for electronic opening and closing of vehicle door |
| CN211422208U (en) * | 2019-09-26 | 2020-09-04 | 宁波华德汽车零部件有限公司 | Two-section type automobile door handle |
| CN113338729A (en) * | 2021-07-21 | 2021-09-03 | 无锡忻润汽车安全系统有限公司 | Hidden handle device |
-
2022
- 2022-11-23 CN CN202211476443.9A patent/CN115749472B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020036373A1 (en) * | 2018-08-13 | 2020-02-20 | Woobo Tech Co., Ltd. | Integrated apparatus for electronic opening and closing of vehicle door |
| CN109798035A (en) * | 2019-03-25 | 2019-05-24 | 无锡忻润汽车安全系统有限公司 | A kind of automobile built-in handle power-off emergency opening device |
| CN211422208U (en) * | 2019-09-26 | 2020-09-04 | 宁波华德汽车零部件有限公司 | Two-section type automobile door handle |
| CN113338729A (en) * | 2021-07-21 | 2021-09-03 | 无锡忻润汽车安全系统有限公司 | Hidden handle device |
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| CN115749472B (en) | 2023-09-15 |
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