Anti-impact device for high-safety door lock of new energy automobile
By installing airbags and pre-yield plates at the door locks of new energy vehicles, and combining this with ECU-controlled ignition to start the inflation assembly, the problems of door deformation and door lock damage in side impacts of new energy vehicles have been solved, achieving passenger safety and rapid rescue.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 百达晶心精密机械(无锡)有限公司
- Filing Date
- 2024-12-06
- Publication Date
- 2026-05-08
AI Technical Summary
In side impacts, the protective structures on both sides of new energy vehicles are relatively weak and cannot effectively absorb the impact force, resulting in door deformation and door lock damage, which affects passenger escape.
An airbag and a pre-yield plate are installed at the door lock. The ignition unit is controlled by the ECU to start the airbag to inflate it quickly, protecting the integrity of the door lock structure. Anti-collision strips and springs are installed at the door latch to reduce impact and noise.
It effectively prevents the doors from deforming and being damaged in side impacts, ensuring passenger safety, enabling timely rescue, reducing the probability of door lock damage, and increasing the chances of escape.
Smart Images
Figure CN224213963U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive door lock anti-impact technology, specifically a high-safety door lock anti-impact device for new energy vehicles. Background Technology
[0002] New energy vehicles refer to automobiles that use unconventional vehicle fuels as a power source (or use conventional vehicle fuels and adopt new on-board power devices), and integrate advanced technologies in vehicle power control and drive, forming automobiles with advanced technical principles, new technologies, and new structures. The current trend in new energy vehicles is "lightweighting," which makes the car's shell lighter than before but also more fragile, making it more susceptible to damage in the event of an accident.
[0003] In all types of collisions, seat belts can effectively restrain passengers in frontal and rear-end collisions, but their role is limited in side impacts, where the fatality rate reaches 44%. This is because the protective structures on both sides of the vehicle are relatively weak and cannot effectively absorb the impact force. Furthermore, the impact force can easily cause the door to deform and damage the door lock, making it impossible to open the door and causing passengers to miss the best rescue time. Utility Model Content
[0004] The purpose of this utility model is to provide a high-safety door lock anti-impact device for new energy vehicles to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A high-security door lock anti-impact device for new energy vehicles includes:
[0007] A support plate has a door latch on one side. The door latch is installed on a latch seat in a slot on the side of the support plate. The bottom of the latch seat has a soft pad. The bottom of the soft pad is connected to the bottom of the slot of the support plate by multiple springs to eliminate the collision noise generated by opening and closing the door. The door latch has a collision pin at both the top and bottom. The support plate has a curved ear extending from one end at both the top and bottom.
[0008] The door lock has a latch at the position corresponding to the door latch. There is a pre-yielding plate between the door lock and the outer shell of the new energy vehicle. The top of the door lock has an upward-facing storage slot containing an airbag. The top of the storage slot has a fixing buckle for fixing the airbag. One side of the door lock is the door latch, and the other side is a collision sensor.
[0009] Preferably, the airbag is folded and stored in the storage compartment and secured by a fixing buckle, with the bottom of the fixing buckle engaging with the top of the storage compartment.
[0010] Preferably, the bottom of the airbag passes through a storage tank and is connected to an inflation assembly, which includes an igniter, etc.
[0011] Preferably, the igniter and the collision sensor are respectively connected to the ECU, and the ECU is in turn connected to the electric lock actuator unit.
[0012] Preferably, the door lock has a through hole at the upper and lower ends of the latch, the position of the collision pin is fixed with the through hole, the collision pin passes through the through hole and then abuts against the collision sensor, and the horizontal height of the collision pin is longer than the horizontal height of the door latch.
[0013] Preferably, the support plate has mounting strips on both sides of the ear portion, the anti-collision strip has an opening on one side, and the anti-collision strip has an opening inside that matches the shape of the mounting strip.
[0014] Preferably, the door lock and collision sensor are located inside the door of the new energy vehicle, while the door latch and support plate are located on the vehicle body.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] This invention protects passenger safety and the structural integrity of the door lock by incorporating an airbag into the door lock and using an ECU to control the ignition. It also protects passengers and prevents door deformation during accidents that could damage the lock and prevent the door from opening, significantly reducing the probability of door lock damage from impacts. This allows rescue personnel to open the door and provide immediate assistance to passengers.
[0017] In this invention, when faced with a light impact, the pre-yielding plate on the door lock deforms first due to its relatively low yield point, thus absorbing the impact force and preventing damage to the door lock that would prevent the door from opening and passengers from moving to a safe area.
[0018] In this invention, the door latch on the vehicle body has an anti-collision strip to reduce the impact of opening and closing the door. The bottom of the door latch has a gasket to reduce the damage caused by the impact of opening and closing the door. Furthermore, a spring is located under the gasket to reduce the noise generated when opening and closing the door. Attached Figure Description
[0019] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a side view of the door lock assembly of this utility model;
[0021] Figure 3 This is a bottom view of the door latch assembly of this utility model;
[0022] Figure 4 This is a side view of the door latch assembly of this utility model;
[0023] Figure 5 This is a schematic diagram showing the connection principle between the ECU, collision sensor, electric lock actuator and igniter of this utility model.
[0024] In the diagram: 1-Support plate; 101-Ear; 102-Mounting strip; 2-Door lock; 201-Through hole; 3-Collision sensor; 4-Lock tongue; 5-Door latch; 501-Lock seat; 502-Padded pad; 503-Spring; 6-Collision pin; 7-Pre-yield plate; 701-Vehicle body; 8-Anti-collision strip; 9-Storage slot; 901-Airbag; 902-Inflator assembly; 903-Fixing buckle; 904-Ignition device; 10-ECU; 11-Electric lock actuator. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Example:
[0027] Please see Figures 1 to 5 This utility model provides a technical solution:
[0028] A high-security door lock anti-impact device for new energy vehicles includes:
[0029] A support plate 1 has a door latch 5 on one side. The door latch 5 is installed on a latch seat 501 in a slot on the side of the support plate 1. The bottom of the latch seat 501 has a soft pad 502. The bottom of the soft pad 502 is connected to the bottom of the slot of the support plate 1 by multiple springs 503 to eliminate the collision noise generated by opening and closing the door. The door latch 5 has a collision pin 6 at both the top and bottom ends. The support plate 1 has a curved ear 101 extending from one end at both the top and bottom ends.
[0030] The door lock 2 has a latch 4 at the position corresponding to the door latch 5. The door lock 2 has a pre-yielding plate 7 between it and the outer shell of the new energy vehicle. The top of the door lock 2 has an upward-facing storage slot 9, which contains an airbag 901. The top of the storage slot 9 has a fixing buckle 903 for fixing the airbag 901. The door lock 2 has a door latch 5 on one side and a collision sensor 3 on the other side.
[0031] In this embodiment, a side door collision during a car accident can damage the door lock 2, preventing it from opening. If ambulances and firefighters cannot arrive in time, the inability to open the door may cause a delay in the best rescue time. Activating the ignition device 904 causes the inflation component 902 to rapidly inflate nitrogen into the airbag 901. The airbag 901 inflates rapidly, and the retaining clip 903 on the storage slot 9 is pushed open by the inflated airbag 901, thus detaching from the storage slot 9. The airbag 901 then deploys, protecting the safety of the passengers and maintaining the structural integrity of the door lock 2, ensuring that rescuers can open the door.
[0032] The door lock 2 is hidden inside the body shell. There are multiple pre-yield plates 7 between the door lock 2 and the body shell 701 to withstand impact. When an impact occurs, the pre-yield plates 7 will absorb the impact force before the door lock 2, preventing damage to the door lock 2 that would prevent the door from being unable to open and passengers from being unable to move to a safe area.
[0033] Specifically, the airbag 901 is folded and stored in the storage slot 9, and is fixed by the fixing buckle 903. The bottom of the fixing buckle 903 is engaged with the top of the storage slot 9.
[0034] Specifically, the bottom of the airbag 901 passes through the storage groove 9 and is connected to the inflation assembly 902, which includes an igniter 904.
[0035] Specifically, the igniter 904 and the collision sensor 3 are respectively connected to the ECU 10, and the ECU 10 is connected to the electric lock actuator 11.
[0036] Specifically, the latch 4 of the door lock 2 has a through hole 201 at the upper and lower ends. The position of the collision pin 6 is fixed with the through hole 201. After the collision pin 6 passes through the through hole 201, it abuts against the collision sensor 3. The horizontal height of the collision pin 6 is longer than the horizontal height of the door latch 5.
[0037] In this embodiment, the door latch 5 has ears 101 at the top and bottom. Anti-collision strips 8 can be added to the ears 101 by mounting blocks to reduce the impact of opening and closing the door. The bottom of the door latch 5 has a pad, which can reduce the damage caused by impact. Below the pad, there is a spring 503 to reduce the noise generated by opening and closing the door.
[0038] Specifically, the support plate 1 has mounting strips 102 on both sides of the ear portion 101, and the anti-collision strip 8 has an opening on one side. The anti-collision strip 8 has an opening inside that matches the shape of the mounting strip 102. The anti-collision strip 8 is inserted into the ear portion 101 from the side opening to fix the opening and the mounting strip 102 in position. The anti-collision strip 8 can be made of rubber.
[0039] Specifically, the door lock 2 and the collision sensor 3 are located inside the door of the new energy vehicle, the door buckle 5 and the support plate 1 are located on the vehicle body, and the body shell 701 has a cover for the airbag 901 to deploy.
[0040] Specifically, the pre-yield plate 7 can be made of a metal with a relatively low yield point to absorb the impact generated by the impact.
[0041] When this utility model is in use, the door latch 5 on the vehicle body has an anti-collision strip 8 to reduce the impact of opening and closing the door. In addition, there is a lot of noise when opening and closing the door. The bottom of the door latch 5 has a pad, which can reduce the damage caused by the impact. At the same time, a spring 503 under the pad reduces the noise generated by opening and closing the door.
[0042] For minor impacts, which refer to accidents with low vehicle speeds (less than 30 km / h) that do not affect passenger safety, the pre-yield plate 7 between the door lock 2 and the body shell 701 deforms first due to its relatively low yield point, in order to absorb the impact force and prevent damage to the door lock 2 that would prevent the door from being opened and passengers from being unable to move to a safe area.
[0043] For severe impacts, which may refer to accidents with high speeds (greater than 30 km / h) and collision angles greater than 60°, such accidents are likely to cause deformation of the door and damage to the door lock 2, making the door unable to be opened and affecting rescue efforts. The collision pin 6 on the door latch 5 strikes the collision sensor 3. The collision sensor 3 detects that the side door collision exceeds the threshold (the threshold can be a speed greater than 30 km / h and an impact angle greater than 60°, or it can be changed to the desired value, this is just an example). It will send an electrical signal to the ECU 10. The ECU 10 will control the igniter 904 to ignite, driving the inflation assembly 902 to inflate the airbag 901. The airbag 901 inflates rapidly, and the fixing buckle 903 on the storage slot 9 will be pushed open by the inflated airbag 901, thus detaching from the storage slot 9. The airbag 901 will then deploy, protecting the safety of the passengers and the structural integrity of the door lock 2, ensuring that rescuers can open the door.
[0044] All other parts of this utility model not described herein are the same as existing technologies, or are known technologies, or can be implemented using existing technologies, and will not be described in detail here.
[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A high-security door lock anti-impact device for new energy vehicles, characterized in that, include: A support plate (1) has a door latch (5) on one side. The door latch (5) is installed on a latch seat (501) in a slot on the side of the support plate (1). The bottom of the latch seat (501) has a soft pad (502). The bottom of the soft pad (502) is connected to the bottom of the slot of the support plate (1) by multiple springs (503) to eliminate the collision noise generated by opening and closing the door. The door latch (5) has a collision pin (6) at both the top and bottom ends. The support plate (1) has a curved ear (101) extending at one end at both the top and bottom ends. The door lock (2) has a latch (4) at the position corresponding to the door latch (5). The door lock (2) has a pre-yielding plate (7) between it and the outer shell of the new energy vehicle. The top of the door lock (2) has an upward-facing storage slot (9). The storage slot (9) contains an airbag (901). The top of the storage slot (9) has a fixing buckle (903) for fixing the airbag (901). One side of the door lock (2) is the door latch (5), and the other side is a collision sensor (3).
2. The anti-impact device for a high-security door lock (2) for new energy vehicles according to claim 1, characterized in that: The airbag (901) is folded and stored in the storage slot (9) and fixed by a fixing buckle (903), with the bottom of the fixing buckle (903) engaging with the top of the storage slot (9).
3. The anti-impact device for a high-security door lock (2) for new energy vehicles according to claim 2, characterized in that: The bottom of the airbag (901) passes through the storage slot (9) and is connected to the inflation assembly (902), which has an igniter (904).
4. The anti-impact device for a high-security door lock (2) for new energy vehicles according to claim 3, characterized in that: The igniter (904) and the collision sensor (3) are respectively connected to the ECU (10), and the ECU (10) is connected to the electric lock actuator (11).
5. The anti-impact device for a high-security door lock (2) for new energy vehicles according to claim 1, characterized in that: The door lock (2) has a through hole (201) at the upper and lower ends of the latch (4). The position of the collision pin (6) is fixed with the through hole (201). After the collision pin (6) passes through the through hole (201), it abuts against the collision sensor (3). The horizontal height of the collision pin (6) is longer than the horizontal height of the door latch (5).
6. The anti-impact device for a high-security door lock (2) for new energy vehicles according to claim 1, characterized in that: The support plate (1) has mounting strips (102) on both sides of the ear (101), and the anti-collision strip (8) has an opening on one side, with the anti-collision strip (8) having an opening inside that matches the shape of the mounting strip (102).
7. The anti-impact device for a high-security door lock (2) for new energy vehicles according to claim 1, characterized in that: The door lock (2) and collision sensor (3) are located inside the door of the new energy vehicle, while the door buckle (5) and support plate (1) are located on the vehicle body.