Vehicle door lock system and vehicle
By designing a door lock system containing a mid-locking device, the problem of disorderly opening or closing of the front door and sliding door of traditional B-pillar models is solved, and higher door connection strength and flexible door operation are achieved.
Patent Information
- Application Number
- CN202510590512.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2025-06-27
AI Technical Summary
The design of traditional car front door and sliding door front lock relies on B-pillar interlocking, and cannot effectively realize disorderly opening or closing of front doors and sliding doors without B-pillar models.
A door lock system is designed, including a front door lock device, a rear door lock device and a middle lock device. The middle lock device realizes disorderly opening or closing of the front door and the rear door through the cooperation of the clamp plate, the second rotary shaft, the pawl and the first rotary shaft, and synchronizes the locks of the front door and the rear door unlocking through the wire pull control box.
It effectively improves the overall strength of the front door and rear door connection area, so that the whole vehicle has better performance under side bump/column collision and other working conditions, and realizes the function of opening or closing the front door and rear door disorder.
Smart Images
Figure CN120211571A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field related to vehicle door locks, and in particular, relates to a door lock system and a vehicle. Background Art
[0002] The statements in this part only provide background technical information related to the present invention, and do not necessarily constitute prior art.
[0003] In recent years, with the continuous improvement of consumers' requirements for automotive comfort and convenience, the door without B-pillar provides passengers with a more spacious and convenient way to enter and exit, improving the comfort and convenience of passengers' use, and also demonstrating the innovation and sense of technology in automotive design. In the future, with the continuous progress of technology and the reduction of costs, the door without B-pillar is expected to be adopted by more vehicle models and become one of the mainstream designs in the automotive market.
[0004] The traditional front door and sliding front door locks of automobiles are both designed to interlock with the B-pillar to fix the door. For vehicle models without a B-pillar, the locking of the door and the layout of the door lock, especially how to achieve the disordered opening or closing of the front door and the sliding door, have become technical problems that need to be solved urgently by those skilled in the art. Summary of the Invention
[0005] To overcome the deficiencies of the above-mentioned prior art, the present invention provides a door lock system and a vehicle. The setting of the middle lock device can achieve the disordered opening or closing of the front door and the rear door.
[0006] To achieve the above object, the present invention adopts the following technical solutions:
[0007] In a first aspect, the present invention provides a door lock system, including: a front door lock device, a rear door lock device, and a middle lock device; the front door lock device is arranged on the front door of the vehicle, and the rear door lock device is arranged on the rear door of the vehicle;
[0008] The middle lock device includes a clamping plate, a second rotating shaft, a pawl, and a first rotating shaft; the clamping plate is arranged on the mounting plate through the second rotating shaft, the pawl is installed on the mounting plate through the first rotating shaft, a U-shaped groove is arranged on the mounting plate, and when the lock catch of the rear door lock device slides into the U-shaped groove along the opening of the U-shaped groove, the clamping plate meshes with the lock catch, and the clamping plate is held in the fully locked position by the pawl.
[0009] In a possible implementation manner, the front door lock device includes a front door top lock and a top lock catch that cooperates with the front door top lock, a front door bottom lock and a bottom lock catch that cooperates with the front door bottom lock; the front door top lock and the front door bottom lock are used to connect the front door of the vehicle to the vehicle body.
[0010] In a possible implementation, the rear door lock device includes a rear door rear lock and a rear door lock catch that cooperates with the rear door rear lock, a fully open limit lock and a limit lock catch that cooperates with the fully open limit lock; the fully open limit lock is used to keep the rear door in the fully open position.
[0011] In a possible implementation, the front door lock device further includes an outer front door opening mechanism and an inner front door opening mechanism; the first cable control box is connected to the outer front door opening mechanism and the inner front door opening mechanism through a first cable system; the first cable control box synchronously actuates the release of the front door top lock, the front door bottom lock and the center lock device.
[0012] In a possible implementation, an operating force is applied to the center lock device through the inner handle and the outer handle of the vehicle front door, and the operating force is transmitted to the cable control box through the center lock device to achieve the synchronous release of the front door top lock, the front door bottom lock and the center lock device.
[0013] In a possible implementation, the rear door lock device further includes an outer rear door sliding mechanism and an inner rear door sliding mechanism; the second cable control box is connected to the outer rear door sliding mechanism and the inner rear door sliding mechanism through a second cable system; the second cable control box synchronously actuates the release of the rear door rear lock and the fully open limit lock.
[0014] In a possible implementation, the clamping plate adopts a cantilever structure. When the clamping plate is in the open state and the vehicle rear door is in the closed state, the center lock device closes to the fully locked position as the vehicle front door closes.
[0015] In a possible implementation, when the vehicle front door is in the closed state and the clamping plate is in the open state, the center lock device closes to the fully locked position as the vehicle rear door closes.
[0016] In a possible implementation, an electric actuator is further included, and the electric actuator is used to drive the rope pulley to rotate to achieve the electric suction of the front door top lock, the front door bottom lock and the front door center lock.
[0017] In a second aspect, the present invention provides a vehicle using the above-mentioned door lock system.
[0018] The above one or more technical solutions have the following beneficial effects:
[0019] In the present invention, the middle lock device connects the front door and the rear door, which can effectively improve the overall strength of the connection area between the front door and the rear door, enabling the whole vehicle to have better performance under conditions such as side collision / column collision, etc.; through the cooperation of the clamping plate, the second rotating shaft, the pawl and the first rotating shaft in the middle lock device, the middle lock can be automatically locked in the initial position, and the setting of the middle lock device can realize the disordered opening or closing of the front door and the rear door.
[0020] Advantages of additional aspects of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The schematic diagrams in the specification forming a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.
[0022] Figure 1 is a schematic diagram of a door lock system shown in an embodiment of the present disclosure;
[0023] Figure 2 is a schematic diagram of the layout of the pull rods and cables of the door lock system shown in an embodiment of the present disclosure;
[0024] Figure 3 is a schematic diagram of the fully locked state of the middle lock device shown in an embodiment of the present disclosure;
[0025] Figure 4 is a schematic diagram of the open state of the clamping plate of the middle lock device shown in an embodiment of the present disclosure;
[0026] LEGEND DESCRIPTION
[0027] 1. Clamping plate, 2. Pawl, 3. Mounting plate, 4. Bottom plate, 5. Lock catch, 6. First rotating shaft, 7. Second rotating shaft, 8. U-shaped groove; 9. Middle lock device and middle lock catch, 10. Front door top lock and top lock catch, 11. Front door bottom lock and bottom lock catch, 12. Middle lock actuator, 13. First cable control box, 14. Fully open limit lock, 15. Limit lock catch, 16. Rear door rear lock and rear lock catch;
[0028] 17. First cable, 18. Second cable, 19. Third cable, 20. Fourth cable, 21. Fifth cable, 22. Sixth cable, 23. Seventh cable, 24. Eighth cable, 25. Ninth cable, 26. Tenth cable, 27. Fully open limit lock release cable. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0029] Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meanings as understood by those of ordinary skill in the art to which this disclosure pertains. The terms "first", "second", "third" and similar words used in the specification and claims of this patent application of the disclosure do not denote any order, quantity or importance, but are merely used to distinguish different components. Similarly, words such as "a" or "an" do not denote a quantity limitation, but mean that there is at least one. Words such as "comprising" or "including" mean that the elements or items appearing before "comprising" or "including" cover the elements or items listed after "comprising" or "including" and their equivalents, and do not exclude other elements or items. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationships may also change accordingly.
[0030] To make the objectives, technical solutions and advantages of this disclosure more clear, the following will further describe the embodiments of this disclosure in detail with reference to the accompanying drawings.
[0031] This embodiment provides a door lock system. Refer to Figures 1 - 4 , this door lock system includes: a front door lock device, a rear door lock device and a center lock device; the front door lock device is disposed on the front door of the vehicle, and the rear door lock device is disposed on the rear door of the vehicle;
[0032] The center lock device includes a clamping plate 1, a second rotating shaft 7, a pawl 2 and a first rotating shaft 6; the clamping plate 1 is disposed on the mounting plate through the second rotating shaft 7, the pawl 2 is mounted on the mounting plate 3 through the first rotating shaft 6, a U-shaped groove 8 is provided on the mounting plate 3, when the lock catch 5 of the rear door lock device slides into the U-shaped groove 8 along the opening of the U-shaped groove, the clamping plate 1 meshes with the lock catch 5, and the clamping plate 1 is held at the fully locked position by the pawl 2.
[0033] In this embodiment, the front door lock device includes a front door top lock and a top lock catch 10, a front door bottom lock and a bottom lock catch 11. The front door top lock cooperates with the top lock catch, and the front door bottom lock cooperates with the bottom lock catch. The front door of the vehicle and the vehicle body are connected through the front door top lock and the top lock catch 10, and the front door bottom lock and the bottom lock catch 11 to lock the front door of the vehicle.
[0034] The front door top lock is located at the top of the front door and cooperates with the top lock catch at the corresponding position on the vehicle body side panel, and can realize electric opening and electric closing or suction.
[0035] The front door floor lock is located at the bottom of the front door and mates with the floor lock buckle at the corresponding position of the vehicle body side panel, enabling electric opening, electric closing or suction.
[0036] The rear door locking device includes a rear door rear lock and a rear door lock buckle 16, a fully open limit lock 14 and a limit lock buckle 15. Among them, the rear door rear lock mates with the rear door lock buckle, and the fully open limit lock 14 mates with the limit lock buckle 15. The front part of the vehicle rear door is interlocked with the vehicle front door, and the rear part of the vehicle rear door is interlocked with the side panel C-pillar to achieve the locking of the rear door.
[0037] When the rear door is opened to the maximum position, the fully open limit lock 14 installed at the bottom of the rear door meshes with the limit lock buckle 15 on the vehicle body side, which can keep the rear door in the fully open position. When wanting to close the rear door, the fully open limit lock 14 can be released by either electric or physical means, and then the rear door can be closed.
[0038] The lock buckle 5 is used to achieve the interlock between the vehicle rear door and the vehicle front door, connecting the front door and the rear door, which can effectively improve the overall strength of the connection area between the front door and the rear door, enabling the whole vehicle to have better performance under conditions such as side collision / column collision.
[0039] The center lock device is located in the middle area at the rear of the front door, and the center lock buckle is located at the corresponding position in the middle of the front of the rear door. The two meshing realizes the interlock between the front door and the rear door, and can achieve electric opening and electric closing.
[0040] As Figure 3 shown, the center lock device includes a clamping plate 1, a second rotating shaft 7, a pawl 2 and a first rotating shaft 6; the clamping plate 1 adopts a cantilever structure, which can enable the lock buckle 5 to enter the U-shaped groove 8 first, and then the clamping plate 1 rotates driven by the driving mechanism and meshes with the lock buckle 5 to achieve the purpose of locking the car door. The pawl 2 is installed on the mounting plate 3 through the first rotating shaft 6, the clamping plate 1 is arranged on the mounting plate 3 through the second rotating shaft 7, and a U-shaped groove 8 is arranged in the middle of the mounting plate 3.
[0041] The center lock device is installed on the vehicle front door, and the lock buckle 5 is installed on the vehicle rear door. When closing the vehicle front door, the front door top lock and the top lock buckle 10 and the front door floor lock and the floor lock buckle 11 at the bottom of the front door first mesh to lock the vehicle front door; at this time, the clamping plate 1 in the center lock device does not move. When closing the vehicle rear door, when the rear door rear lock and the rear lock buckle 16 reach the fully locked position, the lock buckle 5 at the front of the vehicle rear door also synchronously enters the U-shaped groove 8 inside the center lock device and reaches the fully locked position or close to the fully locked position. At this time, the driving mechanism inside the center lock device drives the clamping plate 1 to rotate and fully mesh with the lock buckle 5, and the pawl 2 keeps the clamping plate 1 in the fully locked position.
[0042] When closing the rear door of the vehicle, the rear door lock at the rear of the rear door first engages with the sliding door lock catch in the middle of the vehicle body C-pillar, and the lock catch 5 of the middle lock at the front of the front door also synchronously reaches or approaches the designed fully locked position; thereafter, when closing the front door of the vehicle, the front door top lock and the top lock catch 10 at the top of the front door and the front door bottom lock and the bottom lock catch 11 at the bottom of the front door first engage, while the clamping plate 1 of the middle lock device has been in the open state. Since the clamping plate 1 adopts a cantilever structure, in the open state of the clamping plate 1, the middle lock device can be closed with the front door of the vehicle to the fully locked position, and then the drive mechanism inside the middle lock device is triggered by the control system to drive the clamping plate 1 to rotate and engage with the lock catch. When the clamping plate 1 reaches the fully locked state, the pawl 2 holds the clamping plate 1 in the fully locked position.
[0043] In this embodiment, the middle lock device can realize the disordered opening and closing of the front door and the rear door, that is: when wanting to open or close the door, it is possible to open or close either door first, without order requirements and restrictions.
[0044] It should be noted that if the rear door of the vehicle needs to be opened first, under the condition of power supply, the electric middle lock release and the rear door lock release are realized through the control system, and then the rear door of the vehicle is opened; under the condition of no power, it is necessary to first operate the physical unlocking of the front door of the vehicle, pull the handle of the front door to open the middle lock, then pull the handle of the rear door, and then open the rear door.
[0045] Through the middle lock device, the operating forces of the outer opening mechanism and the inner opening mechanism of the front door can be transmitted to release the first cable system and the first cable control box 13, and then transmitted to the front door top lock and the front door bottom lock release cables respectively, so that the three lock bodies are opened simultaneously. The rear door releases the rear door lock and the fully open limit lock through the second cable system and the second cable control box.
[0046] The door lock system of this embodiment not only has the functions of electric opening and self-suction, but also has complete physical opening and closing, physical locking / unlocking functions, and retains structures such as the lock core connecting rod, the outer handle cable connecting rod, and the inner handle cable connecting rod. When the vehicle runs out of power or the relevant electric functions fail, the door can still be opened and locked physically.
[0047] Although this door lock system is different from the common door lock system solutions, in order to make it convenient for passengers to use and easy to operate, its physical operation method still remains the same as that of the common ordinary door lock system on the market, that is: turning the lock core by key operation, or pulling the inner handle once inside the vehicle can unlock, and after unlocking, pulling the outer handle or the inner handle can open the door.
[0048] The lock bodies of each door are connected through a cable and cable box structure. When it is necessary to open the door physically, after unlocking, only need to pull the inner handle or the outer handle once to open the door, without the need to separately operate each door lock distributed at different positions on the door to open.
[0049] The following is a detailed description of the physical opening method:
[0050] Front door:
[0051] 1. Lock cylinder pull rod: Connects the lock cylinder rocker arm to achieve physical locking / unlocking.
[0052] When operating the lock cylinder pull rod with a physical key, the pull rod transmits the operating force to the central locking device to achieve locking / unlocking of the locking mechanism.
[0053] 2. Front door outside opening cable: Connects the outside handle to achieve physical outside opening.
[0054] Physical opening process of the outside handle: Pull the outside handle → The force is transmitted to the internal mechanism of the central locking through the second cable 18 → The internal mechanism of the central locking transmits the force to the fifth cable 21, and is transmitted to the cable control box through the fifth cable 21 → The internal mechanism of the cable control box transmits the force to the sixth cable 22 and the seventh cable 23. The front door floor lock is released by the sixth cable 22, and the front door overhead lock is released by the seventh cable 23.
[0055] 3. Front door inside opening cable: Connects the inside handle to achieve physical inside opening.
[0056] Physical opening process of the inside handle: Pull the inside handle → The force is transmitted to the internal mechanism of the central locking through the third cable 19 → The internal mechanism of the central locking transmits the force to the fifth cable 21, and is transmitted to the cable control box through the fifth cable 21 → The internal mechanism of the cable control box transmits the force to the sixth cable 22 and the seventh cable 23. The front door floor lock is released by the sixth cable 22, and the front door overhead lock is released by the seventh cable 23.
[0057] 4. Electric release cable: Can achieve the release of the front door overhead lock and the front door floor lock.
[0058] Electric release process: The central locking actuator works → The force is transmitted to the cable control box through the fourth cable 20 → The internal mechanism of the cable control box transmits the force to the sixth cable 22 and the seventh cable 23. The front door floor lock is released by the sixth cable 22, and the front door overhead lock is released by the seventh cable 23.
[0059] 5. Physical release cable: After the physical operating force from the outside handle / inside handle is transmitted to the central locking device, the internal mechanism of the central locking transmits the force to the physical release fifth cable 21, and is transmitted to the cable control box through the fifth cable 21.
[0060] Central locking suction cable 17: Transmits the suction force of the electric actuator to the central locking device to drive the central locking device to suck.
[0061] Floor lock release cable: Drives the floor lock to release.
[0062] Overhead lock release cable: Drives the overhead lock to release.
[0063] back door:
[0064] 1. Rear door outer opening pull wire: connected to the outer handle, the physical operating force of the outer handle is transmitted to the rear door rear lock through the tenth pull wire 36, driving it to be released.
[0065] 2. Rear door inner opening pull wire: connected to the inner handle or the inner backup opening mechanism, the physical operating force of the inner handle or the inner backup opening mechanism is transmitted to the rear door rear lock through the ninth pull wire 25, driving it to be released.
[0066] 3. The fully open limit lock release pull wire 27 drives the fully open limit lock to release.
[0067] It should be noted that when the front door and rear door of the vehicle are both closed, the central locking device must be opened before opening the rear door to release the interlocking state of the front door and rear door of the vehicle, but the front door sky lock and front door ground lock of the front door of the vehicle are still in the fully locked state.
[0068] This embodiment connects the front door and the rear door through the central locking device, which can effectively improve the overall strength of the connection area between the front door and the rear door, so that the whole vehicle has better performance under side collision / column collision and other working conditions; in the central locking device, the card plate, the second rotating shaft, the ratchet and the first rotating shaft are coordinated, so that the central lock can be automatically locked in the initial position, and the setting of the central locking device can realize the disorderly opening and closing of the front door and the rear door. When closing the front door of the vehicle, the front door sky lock and the sky lock buckle at the top of the front door of the vehicle and the front door ground lock and the ground lock buckle at the bottom of the front door are first engaged to lock the front door of the vehicle; at this time, the card plate in the central locking device does not move, and when the rear door of the vehicle is closed, when the rear lock and the rear lock buckle of the rear door reach the fully locked position, the lock buckle at the front of the rear door of the vehicle also synchronously enters the U-shaped groove of the central locking device and reaches the fully locked position or close to the fully locked position. At this time, the internal driving mechanism of the central locking device drives the card plate to rotate and fully engages with the lock buckle, and the ratchet keeps the card plate in the fully locked position.
[0069] When closing the rear door of the vehicle, the rear door rear lock located at the rear of the rear door of the vehicle engages with the sliding door lock catch in the middle of the C-pillar of the vehicle body first, and the lock catch of the central lock at the front of the rear door also reaches or approaches the designed full lock position simultaneously; thereafter, the front door of the vehicle is closed, and the front door sky lock and sky lock lock catch located at the top of the front door of the vehicle and the front door ground lock and ground lock lock catch located at the bottom of the front door engage first, while the card plate of the central lock device is always in the open state. Since the card plate adopts a cantilever structure, when the card plate is in the open state, the central lock device can be closed to the full lock position with the front door of the vehicle, and then the control system triggers the driving mechanism inside the central lock device to drive the card plate to rotate and engage with the lock catch. When the card plate reaches the fully locked state, the ratchet keeps the card plate in the fully locked position.
[0070] Although the specific implementation manners of the present invention have been described above in conjunction with the accompanying drawings, it is not a limitation on the protection scope of the present invention. Those skilled in the art should understand that various modifications or deformations that can be made without creative efforts on the basis of the technical solution of the present invention are still within the protection scope of the present invention.
Claims
1. A vehicle door lock system, characterized in that: include: A front door lock device, a rear door lock device and a central lock device; the front door lock device is arranged on the front door of the vehicle, and the rear door lock device is arranged on the rear door of the vehicle; The central locking device includes a card plate, a second rotating shaft, a pawl and a first rotating shaft; the card plate is arranged on a mounting plate via the second rotating shaft, the pawl is mounted on the mounting plate via the first rotating shaft, a U-shaped groove is arranged on the mounting plate, when the lock buckle of the rear door lock device slides into the U-shaped groove along the opening of the U-shaped groove, the card plate engages with the lock buckle, and the card plate is kept in a fully locked position via the pawl.
2. A vehicle door lock system as claimed in claim 1, characterized in that: The front door lock device includes a front door sky lock and a sky lock buckle matched with the front door sky lock, a front door ground lock and a ground lock buckle matched with the front door ground lock; the front door sky lock and the front door ground lock are used to connect the front door of the vehicle with the vehicle body.
3. A vehicle door lock system as claimed in claim 1, characterized in that: The rear door lock device also includes a rear door lock and a rear door lock buckle matched with the rear door lock, a full-open limit lock and a limit lock buckle matched with the full-open limit lock; the full-open limit lock is used to keep the rear door in the fully open position.
4. A vehicle door lock system as claimed in claim 1, characterized in that: The front door lock device also includes a front door outward opening mechanism and a front door inward opening mechanism; a first pull-wire control box connects the front door outward opening mechanism and the front door inward opening mechanism through a first pull-wire system; the first pull-wire control box synchronously links the release of the front door sky lock, the front door ground lock and the central locking device.
5. A vehicle door lock system as claimed in claim 1, characterized in that: The operating force is applied to the central locking device through the inner handle and the outer handle of the vehicle front door, and the operating force is transmitted to the pull-wire control box through the central locking device to achieve the synchronous release of the front door sky lock, the front door ground lock and the central locking device.
6. A vehicle door lock system as claimed in claim 1, characterized in that: The rear door lock device also includes a rear door outer sliding mechanism and a rear door inner sliding mechanism; a second pull-wire control box connects the rear door outer sliding mechanism and the rear door inner sliding mechanism through a second pull-wire system; the second pull-wire control box synchronously links the release of the rear door rear lock and the fully open limit lock.
7. A vehicle door lock system as claimed in claim 1, characterized in that: The card plate adopts a cantilever structure. When the card plate is in an open state and the rear door of the vehicle is in a closed state, the central locking device is closed as the front door of the vehicle is closed until it is fully locked.
8. A vehicle door lock system as claimed in claim 1, characterized in that: When the front door of the vehicle is in a closed state and the card plate is in an open state, the middle locking device is closed as the rear door of the vehicle is closed until it is fully locked.
9. A vehicle door lock system as claimed in claim 2, characterized in that: It also includes an electric actuator, which is used to drive the rope wheel to rotate, so as to realize the electric attraction of the front door sky lock, the front door ground lock and the front door middle lock.
10. A vehicle, characterized in that: A vehicle door lock system as described in any one of claims 1 to 9 is adopted.