Lifesaving device for automobile falling into water

By installing water sensors and rescue airbags on vehicles and using electronic control units to work together, the windows and doors can be opened automatically, providing an escape opportunity and solving the problem of people being unable to escape quickly after a car falls into water, thus ensuring a safe escape.

CN121912905APending Publication Date: 2026-04-24蔡敏
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
蔡敏
Filing Date
2024-01-09
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

After a car falls into water, it is difficult for the occupants to escape quickly before the driver's cab is submerged. Existing technology cannot effectively provide an escape opportunity, and the tension causes the best escape time to be delayed.

Method used

Equipped with a water-fall sensor, an airbag system, window opening motors, door unlocking motors, and a distress call device, the system works in concert with an electronic control unit to control the lowering of windows, unlocking of doors, and inflation of the airbag, providing an escape opportunity.

Benefits of technology

The system automatically opens the windows and doors and provides an airbag to ensure that people can escape before the car completely sinks, thus avoiding casualties.

✦ Generated by Eureka AI based on patent content.

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Abstract

An automobile drowning lifesaving device comprises a drowning sensor device, a lifesaving air bag device, an automobile window opening motor, an automobile door unlocking motor, a distress call device and an electronic control unit, and the electronic control unit receives monitoring signals of the drowning sensor device to control the lifesaving air bag device, the automobile window opening motor, the automobile door unlocking motor and the distress call device to act. The device has the beneficial effects that the drowning sensor is arranged on the basis of an existing automobile, when the automobile falls into water, any sensor is triggered, the control unit controls the automobile door to be unlocked, the automobile window motor is controlled to drive the automobile window to descend, and meanwhile the gas generation device is triggered, so that the gas is rapidly filled in the lifesaving airbag, and the automobile door is pushed open while the airbag is opened; a person falling into water can carry the lifesaving air bag to escape, the person falling into water can conveniently master escape time at the moment when the automobile falls into water, and casualties are avoided.
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Description

Technical Field

[0001] This invention relates to the field of automotive safety devices, specifically a vehicle drowning rescue device. Background Technology

[0002] After a car falls into water, finding a safe exit and quickly escaping the vehicle is the most important way to ensure safety. However, if the water is deep and the driver's compartment is submerged, the car doors are difficult to open due to water pressure. Even if the windows are broken, the powerful current will rush into the car, making it impossible for occupants to climb out and potentially leading to drowning. Therefore, finding a way to escape quickly before the driver's compartment is completely submerged is one of the main ways to ensure personal safety after a car falls into water. In addition, when a vehicle falls into water, occupants are prone to panic and fear, which can lead to confusion and delays in finding a safe exit, thus wasting valuable time for escape. To address this situation, and considering the changing circumstances after a car falls into water, this research focuses on developing a car water rescue device to prevent the car from sinking completely and to provide occupants with time to be rescued. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a car water rescue device that uses a water sensor to monitor whether a vehicle is in a water-filled state, preventing the car from being completely submerged in water and providing time for the people inside to be rescued.

[0004] To solve the above problems, the present invention provides the following technical solution: a car falling into water rescue device, including a water sensor device, a rescue airbag device, a window opening motor, a door unlocking motor, a distress call device and an electronic control unit, wherein the electronic control unit receives the monitoring signal from the water sensor device and controls the rescue airbag device, the window opening motor, the door unlocking motor and the distress call device to operate.

[0005] The electronic control unit is an on-board computer (ECU).

[0006] The water-falling sensor device consists of four units, which are installed on the four sides of the car at the same height, namely the front, rear, left, and right sides of the car. Each unit is composed of a sensor bracket, a float, and a terminal block. The sensor bracket is a rectangular box with a rectangular through hole on its bottom surface. The float is a rectangular block located inside the sensor bracket. Contact points are provided at the top of the float and the bottom of the top surface of the sensor bracket, and a terminal block is provided at the middle of the two contacts at their farthest points.

[0007] The rescue airbag device is installed on the door frame of the car door and consists of a box, an airbag and a gas generator. The airbag is circular and has symmetrical handles on the side. It is folded and retracted in an orderly manner inside the box, and the gas generator is located inside the box.

[0008] The calling device is a loudspeaker.

[0009] Furthermore, when the electronic control unit receives a detection signal from any water-sensing device, it simultaneously controls the window opening motor and door unlocking motor to operate, driving the windows down and unlocking the doors, controlling the gas generator to inflate the airbags, and controlling the call device to emit a call sound.

[0010] Furthermore, the width of the float is greater than the length of the through hole, but less than the internal width of the sensor bracket.

[0011] Beneficial effects

[0012] Compared with the prior art, the beneficial effects of the present invention are: simple structure and reasonable construction. By setting up a water-falling sensor on the basis of an existing car, when the vehicle falls into the water, if any sensor is triggered, the control unit will control the door to unlock, control the window motor to drive the window to descend, and at the same time trigger the gas generating device to quickly fill the rescue airbag with gas. As the airbag opens, the door is pushed open, and the person who fell into the water can escape with the rescue airbag. This makes it easier for the person who fell into the water to grasp the escape time at the moment the car falls into the water, and avoid casualties. Attached Figure Description

[0013] Figure 1 This is a schematic diagram illustrating the working principle of the present invention;

[0014] Figure 2 This is a front view of the water-falling sensor device of the present invention;

[0015] Figure 3 This is a bottom view of the water-falling sensor device of the present invention;

[0016] Figure 4 This is a schematic diagram of the installation of the life-saving device of the present invention;

[0017] Figure 5 This is a structural diagram of the rescue airbag of the present invention.

[0018] Figure descriptions: 1. Water-falling sensor, 11. Sensor bracket, 111. Rectangular through hole, 12. Float, 13. Terminal block, 14. Contact, 2. Rescue airbag device, 21. Box body, 22. Airbag, 23. Gas generator, 3. Window opening motor, 4. Door lock motor, 5. Emergency call device, 6. Electronic control unit, 7. Car door, 8. Door frame. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figures 1-5 As shown, a car drowning rescue device includes a drowning sensor device 1, a rescue airbag device 2, a window opening motor 3, a door unlocking motor 4, a distress call device 5, and an electronic control unit 6. The electronic control unit 6 receives the monitoring signal from the drowning sensor device 1 and controls the rescue airbag device 2, the window opening motor 3, the door unlocking motor 4, and the distress call device 5 to operate.

[0021] Electronic control unit 6 is the vehicle-mounted computer ECU;

[0022] There are four water-falling sensor devices 1, which are installed on the four sides of the car at the same height, namely the front, rear, left and right sides of the car. Each device consists of a sensor bracket 11, a float 12, and a terminal block 13. The sensor bracket 11 is a rectangular box with a rectangular through hole 111 on its bottom surface. The float 12 is a rectangular block located inside the sensor bracket 11. The top of the float 12 and the bottom of the top surface of the sensor bracket 11 are provided with contact points 14, and the terminal block 13 is provided in the middle of the two contacts 14 at their far ends.

[0023] The rescue airbag device 2 is installed at the door frame of the car door and consists of a box 21, an airbag 22 and a gas generator 23. The airbag 22 is circular and has symmetrical handles on the side. It is folded and retracted and stacked in an orderly manner inside the box 1. The gas generator 23 is located inside the box 21.

[0024] The calling device 5 is a calling horn.

[0025] As a preferred option, the electronic control unit 6 receives a detection signal from any of the water-falling sensor devices 1, and simultaneously controls the window opening motor 3 and the door unlocking motor 4 to operate, driving the window to lower and unlocking the door, controlling the gas generator 23 to operate, inflating the airbag 22, and controlling the call device 5 to emit a call sound.

[0026] As a preferred embodiment, the width of the float 12 is greater than the length of the through hole and less than the internal width of the sensor bracket 11.

[0027] like Figure 2 , Figure 3As shown, in specific applications, the water-falling sensors are installed at the four corners of the vehicle, about 10cm above the chassis. When the vehicle is not submerged, the float is in the air at the bottom of the sensor bracket 11, the two contacts 14 are separated, and the two terminals 13 are disconnected. When the vehicle falls into the water, under the action of water buoyancy, the float 12 floats on the top of the sensor bracket 11, causing the two contacts 14 to connect and the two terminals 13 to be connected. The circuit of the water-falling sensor is turned on, the water-falling sensor starts to work, and transmits the detection signal to the electronic control unit 6, i.e., the vehicle computer ECU.

[0028] like Figure 4 , Figure 5 As shown, the gas generator 23 of the rescue airbag device 2 is an electrically triggered gas generator, which is similar to the structure and principle of existing automotive airbags. A groove can be provided at the door frame of the car, and the box 21 is placed inside the groove. When not triggered, the airbag is in a contracted and folded state, and is stacked in an orderly manner inside the box 21. When the electronic control unit 6 controls the gas generator to act, the gas quickly fills the airbag 22, and the airbag is quickly opened into a circular rescue device. In specific applications, the rescue airbag and the box 21 are connected by a connecting rope. When a person falls into the water and escapes, the connecting rope can be broken to remove the rescue airbag.

[0029] Working principle:

[0030] There are four water-fall sensors, installed at the four corners of the vehicle at a certain height. The rescue airbag housing is installed on the door frame of each door. All wiring harnesses are waterproof. When the vehicle falls into water, any sensor is triggered. The control unit will unlock the doors, lower the windows using the window motors, and activate the call system to sound an alarm. Simultaneously, a trigger-activated gas generator will rapidly fill the rescue airbag with gas. As the airbag deploys, the doors will open. The person in the water can then untie the rope connecting the rescue airbag to the vehicle (using an easy-to-untie slipknot) and escape with the airbag.

[0031] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A car drowning rescue device, comprising a drowning sensor device (1), a rescue airbag device (2), a window opening motor (3), a door unlocking motor (4), a distress call device (5), and an electronic control unit (6), characterized in that: The electronic control unit (6) receives the monitoring signal from the water-falling sensor device (1) and controls the operation of the rescue airbag device (2), the window opening motor (3), the door unlocking motor (4), and the emergency call device (5). The electronic control unit (6) is an on-board computer ECU; The water-falling sensor device (1) consists of four units, which are installed on the four sides of the car at the same height, namely the front, rear, left and right sides of the car. It is composed of a sensor bracket (11), a float (12) and a terminal block (13). The sensor bracket (11) is a rectangular box with a rectangular through hole (111) on its bottom surface. The float (12) is a rectangular block located inside the sensor bracket (11). The top of the float (12) and the bottom of the top surface of the sensor bracket (11) are provided with a contact point (14), and a terminal block (13) is provided in the middle of the two contacts (14) at the far ends of each other. The rescue airbag device (2) is installed at the door frame of the car door and consists of a box (21), an airbag (22) and a gas generator (23). The airbag (22) is circular and has symmetrical handles on the side. It is folded and retracted and stacked in an orderly manner inside the box (1). The gas generator (23) is installed inside the box (21). The calling device (5) is a calling horn.

2. The car drowning rescue device according to claim 1, characterized in that: When the electronic control unit (6) receives the detection signal from any water-falling sensor device (1), it synchronously controls the window opening motor (3) and the door unlocking motor (4) to operate, drives the window to descend and unlocks the door, controls the gas generator (23) to operate, inflates the airbag (22), and controls the call device (5) to emit a call sound.

3. The car drowning rescue device according to claim 1, characterized in that: The width of the float (12) is greater than the length of the through hole and less than the internal width of the sensor bracket (11).