Automobile door lock locking mechanism

Through the multi-layer structure of the pawl design and real-time monitoring system, the problems of complex pawl processing and excessive opening sound are solved, which improves wear resistance and reduces noise. At the same time, real-time monitoring and intelligent control of door locks are realized, improving vehicle safety and user experience.

CN120465783APending Publication Date: 2025-08-12HEFEI CHUANGJIA AUTOMOBILE ELECTRONICS
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Patent Information

Application Number
CN202510960846.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-12
Publication Date
2025-08-12

AI Technical Summary

Technical Problem

The existing car door locking mechanism has complicated processing, high cost and excessive sound when opened.

Method used

The pawl design adopts a multi-layer structure, including a pawl body, a sound absorbing layer and a wear-resistant layer, is installed on the bracket by a second rotating member, and corresponds to the ratchet and the outer opening arm, and is monitored in real time in combination with a pressure and angle sensor.

Benefits of technology

It improves the wear resistance of the pawl, reduces the sound of opening, realizes real-time monitoring and intelligent control, and improves vehicle safety and user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides an automobile door lock locking mechanism. The locking mechanism of the automobile door lock comprises a shell, the support is installed in the shell, a pawl with a pawl opening arm is installed on one face of the support through a second rotating component, the pawl comprises a pawl body, a sound absorption layer and a wear-resistant layer, and the wear-resistant layer is located on the outermost layer and used for improving wear resistance; the ratchet wheel is installed at the position, close to one side, of the interior of the shell through a first rotating component, and an outer opening arm is installed at the position, close to the other side, of the interior of the shell through a third rotating component. According to the automobile door lock locking mechanism, through the design, an original ratchet wheel, an original pawl, an original pawl opening arm and an original first rotating part reinforcing plate are replaced, an unlocking sliding plate, a main support, a bottom plate, a base and an inward opening system cover plate are modified, the pawl is of a multi-layer structure, and the problems that opening sound is too large and abrasion resistance is not achieved are solved.
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Description

Technical Field

[0001] The present invention relates to the technical field of automobile door locks, and in particular to a locking mechanism for an automobile door lock. Background Art

[0002] The full name of the central lock is the central control door lock. It is a car accessory. Using this lock, you can open and lock the door remotely without inserting the key into the keyhole. It consists of a door lock switch, an actuator and a controller.

[0003] The locking mechanism of a car door lock is mainly composed of a lock body, a lock catch, a ratchet, a return spring and other components. When the car door is opened, the inner and outer handles are used to release the stopping effect of the pawl on the ratchet. The ratchet rotates and bounces open under the action of the return spring, and the car door is unlocked. When the car door is closed, the ratchet fish mouth collides with the lock catch column, driving the ratchet to move to the fully locked position. The ratchet engages with the pawl, and the pawl is subjected to compressive stress to form a locking mechanism, thereby closing the car door.

[0004] However, the pawl of the existing automobile door lock locking mechanism is a cold-forged special-shaped part, which is complicated to process and too expensive, and makes too loud a sound when opening.

[0005] Therefore, it is necessary to provide a car door lock locking mechanism to solve the above technical problems. Summary of the Invention

[0006] The invention provides a locking mechanism for an automobile door lock, which solves the problems of complex processing cost, high cost and high noise when a pawl of a cold-forged special-shaped part is opened.

[0007] In order to solve the above technical problems, the present invention provides a car door lock locking mechanism comprising: a housing;

[0008] a bracket, the bracket being mounted inside the housing, a pawl with a pawl opening arm being mounted on one side of the bracket via a second rotating component, the pawl comprising a pawl body, a sound absorbing layer, and a wear-resistant layer, the wear-resistant layer being located on the outermost layer for improving wear resistance;

[0009] A ratchet wheel is mounted on a position near one side of the interior of the housing through a first rotating component, and an outer opening arm is mounted on a position near the other side of the interior of the housing through a third rotating component;

[0010] The inside of the shell is also equipped with an unlocking and anti-sliding plate, a main bracket, a bottom plate, a base, and an inward opening system cover.

[0011] Preferably, the wear-resistant layer is made of wear-resistant rubber, and the sound-absorbing layer is made of polyester fiber to enhance the sound-absorbing effect;

[0012] The sound-absorbing layer and the wear-resistant layer are both bonded with glue.

[0013] Preferably, the pawl opening arm is used to open the pawl, and the pawl cooperates with the ratchet wheel to play a limiting role.

[0014] Preferably, a plurality of mounting openings are provided on both sides of the pawl, and a monitoring component is installed inside each mounting opening;

[0015] The mounting openings are located at the junction of the ratchet wheel and the outer opening arm.

[0016] Preferably, the monitoring assembly comprises a base and a monitoring component, wherein the base is used to mount the monitoring component inside the mounting opening;

[0017] The monitoring end of the monitoring component is installed inside the installation opening through a mounting seat.

[0018] Preferably, the monitoring component is a pressure sensor and an angle sensor for monitoring pressure changes and angle changes;

[0019] Pressure sensors, angle sensors, etc. monitor the force, rotation angle and other status information in real time, and the sensors transmit the data to the vehicle's electronic control unit.

[0020] Compared with the related art, the automobile door lock locking mechanism provided by the present invention has the following beneficial effects:

[0021] The present invention provides a car door lock locking mechanism. In order to improve the wear resistance of the pawl and reduce noise in the car door lock locking mechanism, the pawl with the pawl opening arm is first installed on one side of the bracket through the second rotating component, and the ratchet is installed inside the shell through the first rotating component, and the positions of the pawl and the ratchet are corresponding, and the positions of the pawl and the outer opening arm are adjacent, and the pawl is arranged from the inside to the outside respectively. The wear resistance of the pawl can be increased and the noise during use can be reduced. Through this design, the original ratchet, pawl, pawl opening arm, and the reinforced version of the first rotating component are replaced, and the unlocking sliding plate, main bracket, bottom plate, base, and inner opening system cover are modified. The pawl adopts a multi-layer structure to solve the problems of excessive opening noise and poor wear resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic structural diagram of a first embodiment of the automobile door lock locking mechanism provided by the present invention;

[0023] Figure 2 Provides a structural schematic diagram of the outer opening arm of the present invention;

[0024] Figure 3 Provides a schematic structural diagram of the wear-resistant layer of the present invention;

[0025] Figure 4A schematic structural diagram of a second embodiment of the automobile door lock locking mechanism provided by the present invention;

[0026] Figure 5 A structural schematic diagram of the installation port is provided for the present invention;

[0027] Figure 6 The present invention provides Figure 5 An enlarged view of point A is shown.

[0028] Numbers in the figure: 1. Shell, 2. Ratchet, 3. First rotating component, 4. Second rotating component, 5. Pawl, 501. Wear-resistant layer, 502. Sound-absorbing layer, 503. Pawl body, 6. Outer opening arm, 7. Third rotating component, 8. Bracket, 9. Monitoring component, 901. Base, 902. Monitoring component, 10. Mounting port, 11. Pawl opening arm. DETAILED DESCRIPTION

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] First embodiment

[0031] Please refer to Figure 1 、 Figure 2 、 Figure 3 ,in, Figure 1 A schematic structural diagram of a first embodiment of the automobile door lock locking mechanism provided by the present invention; Figure 2 Provides a structural schematic diagram of the outer opening arm of the present invention; Figure 3 The present invention provides a structural schematic diagram of the wear-resistant layer. The automobile door lock locking mechanism comprises: a housing 1;

[0032] A bracket 8 is mounted inside the housing 1. A pawl 5 with a pawl opening arm 11 is mounted on one side of the bracket 8 via a second rotating component 4. The pawl 5 includes a pawl body 503, a sound-absorbing layer 502, and a wear-resistant layer 501. The wear-resistant layer 501 is located on the outermost layer to improve wear resistance.

[0033] A ratchet 2, the ratchet 2 being mounted on one side of the housing 1 via a first rotating member 3, and an outer opening arm 6 being mounted on the other side of the housing 1 via a third rotating member 7;

[0034] The inside of the housing 1 is also equipped with an unlocking and stopping slide plate, a main bracket, a bottom plate, a base, an inner opening system cover plate, and the positions of the pawl 5, the ratchet 2 and the outer opening arm 6 correspond to each other. For specific distribution, please refer to Figure 2 .

[0035] The wear-resistant layer 501 is made of wear-resistant rubber, and the sound-absorbing layer 502 is made of polyester fiber to enhance the sound-absorbing effect;

[0036] The sound absorbing layer 502 and the wear-resistant layer 501 are both bonded by glue.

[0037] The pawl opening arm 11 is used to open the pawl 5, and the pawl 5 cooperates with the ratchet wheel 2 to play a limiting role;

[0038] The ratchet 2 and the pawl 5 cooperate with each other to achieve locking.

[0039] The working principle of the automobile door lock locking mechanism provided by the present invention is as follows:

[0040] First, the pawl 5 with the pawl opening arm 11 is installed on one side of the bracket 8 through the second rotating component 4, and the ratchet is installed inside the shell 1 through the first rotating component 3, and the positions of the pawl 5 and the ratchet 2 are corresponding, and the positions of the pawl 5 and the outer opening arm 6 are adjacent. The pawl 5 is in place from the inside, namely the pawl body 503, the sound-absorbing layer 502 and the wear-resistant layer 501, which can increase the wear resistance of the pawl 5 and reduce the noise during use. When the outer opening drives the outer opening arm, the transmission system starts working and finally drives the pawl opening arm 11. At the same time, the pawl 5 also makes a corresponding rotation, so that the ratchet 2 returns to its position, and the door lock is finally opened.

[0041] Compared with the related art, the automobile door lock locking mechanism provided by the present invention has the following beneficial effects:

[0042] In order to improve the wear resistance of the pawl and reduce noise in the locking mechanism of the automobile door lock, the pawl 5 with the pawl opening arm 11 is first installed on one side of the bracket 8 through the second rotating part 4, and the ratchet is installed inside the shell 1 through the first rotating part 3, and the pawl 5 and the ratchet 2 are positioned correspondingly, and the pawl 5 and the outer opening arm 6 are positioned adjacent to each other. The pawl 5 is arranged from the inside to the outside, and the pawl body 503, the sound-absorbing layer 502 and the wear-resistant layer 501 are respectively arranged, which can increase the wear resistance of the pawl 5 and reduce the noise during use. Through this design, the original ratchet 2, pawl 5, pawl opening arm 11, and the reinforced version of the first rotating part 3 are replaced, and the unlocking slide plate, main bracket, bottom plate, base, and inner opening system cover are modified. The pawl 5 adopts a multi-layer structure to solve the problems of excessive opening noise and poor wear resistance.

[0043] Second embodiment

[0044] Please refer to Figure 4-Figure 5 - Figure 6 , Figure 4 A schematic structural diagram of a second embodiment of the automobile door lock locking mechanism provided by the present invention; Figure 5 A structural schematic diagram of the installation port is provided for the present invention; Figure 6 The present invention provides Figure 5The enlarged view of point A is shown. Based on the automobile door lock locking mechanism provided by the first embodiment of the present application, the second embodiment of the present application provides another automobile door lock locking mechanism. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0045] Specifically, the second embodiment of the present application provides a vehicle door lock locking mechanism that is different in that a plurality of mounting openings 10 are provided on both sides of the pawl 5 , and a monitoring component 9 is installed inside each mounting opening 10 ;

[0046] The mounting opening 10 is located at the junction of the ratchet 2 and the outer opening arm 6 .

[0047] The monitoring assembly 9 includes a base 901 and a monitoring component 902 , wherein the base 901 is used to install the monitoring component 902 inside the installation opening 10 ;

[0048] The monitoring end of the monitoring component 902 is installed inside the mounting opening 10 through a mounting seat, and the base 901, the ratchet 2 and the outer opening arm 6 are subjected to force and then transmitted to the monitoring component 902.

[0049] The monitoring component 902 is a pressure sensor and an angle sensor for monitoring pressure changes and angle changes;

[0050] Pressure sensors, angle sensors, etc. monitor the force, rotation angle and other status information in real time. The sensors transmit the data to the vehicle's electronic control unit, which uses algorithms to analyze whether the door lock is locked normally, whether there is any abnormal force or looseness.

[0051] Compared with the related art, the automobile door lock locking mechanism provided by the present invention has the following beneficial effects:

[0052] In order to realize real-time monitoring and intelligent control of the door lock status, multiple installation openings 10 are opened on both sides of the pawl 5. Then, multiple monitoring components 9 composed of a base 901 and a monitoring component 902 are installed inside the installation opening 10. Through the pressure sensor, angle sensor, etc. in the monitoring component 902, its force, rotation angle and other status information are monitored in real time. Through this design, real-time monitoring and intelligent control of the door lock status can be realized, the vehicle safety and intelligent management level can be improved, the hidden dangers of door lock failure can be warned in advance, and safety accidents caused by door lock problems can be avoided, providing users with a more convenient and safe car experience.

Claims

1. A car door lock locking mechanism, characterized in that: include: case; a bracket, the bracket being mounted inside the housing, a pawl with a pawl opening arm being mounted on one side of the bracket via a second rotating component, the pawl comprising a pawl body, a sound absorbing layer, and a wear-resistant layer, the wear-resistant layer being located on the outermost layer for improving wear resistance; The ratchet is installed at a position close to one side of the interior of the housing through a first rotating component, and an outer opening arm is installed at a position close to the other side of the interior of the housing through a third rotating component.

2. The automobile door lock locking mechanism according to claim 1, characterized in that: The wear-resistant layer is made of wear-resistant rubber, and the sound-absorbing layer is made of polyester fiber for enhancing the sound-absorbing effect.

3. The automobile door lock locking mechanism according to claim 1, characterized in that: The pawl opening arm is used to open the pawl, and the pawl cooperates with the ratchet wheel to play a limiting role.

4. The automobile door lock locking mechanism according to claim 1, characterized in that: A plurality of mounting openings are provided on both sides of the pawl, and a monitoring component is installed inside each mounting opening.

5. The automobile door lock locking mechanism according to claim 4, characterized in that: The monitoring assembly includes a base and a monitoring component, and the base is used to install the monitoring component inside the installation port.

6. The automobile door lock locking mechanism according to claim 5, characterized in that: The monitoring components are pressure sensors and angle sensors for monitoring pressure changes and angle changes.