TWM588069U - Anti-collision device structure - Google Patents

Abstract

The invention relates to a structure of an anti-collision device, which comprises a seat, an airbag device is arranged on the seat, the seat comprises a seat back and a headrest, a sensor is arranged on the seat; one of the airbag devices The controller is electrically connected to the sensor and a first igniter of a head airbag and a second igniter of a spinal airbag. When a collision accident occurs, a signal is transmitted to the controller, the first An igniter and the second igniter, the first gas generator and the second gas generator, so that the head airbag and the spine airbag are inflated and deployed to protect the sides of the driver's head and the neck spine It will not be injured due to violent shaking, which improves the safety of the driver in the event of a collision.

Description

Structure of anti-collision device

The invention relates to a structure of an anti-collision device, in particular to a structure of an anti-collision device provided with a head airbag and a spine airbag extending side arms.

Car airbags are safety devices configured to protect the safety of drivers and passengers. When a car collides with an obstacle, it is called a collision, and the occupant collides with the internal components of the car, which is called a second collision. The airbag quickly opens a gas-filled air cushion after a collision and before the second collision. When it moves, it slams on the air cushion, so as to reduce the impact of the occupants and absorb the collision energy, and reduce the occupant's injury.

The airbag, as an auxiliary device for the occupant restraint device of a seat belt, is called an Supplemental Restraint System (SRS). Can provide effective crash protection for passengers. When a car collides, an airbag can reduce head injuries by 25% and facial injuries by about 80%.

Airbags are generally composed of sensors, electronic control units (ECUs), gas generators (inflators), airbags (bags), and clock springs. Generally, gas generators and airbags are used together to form airbag modules. (airbag module). Gas generator. The airbag system requires that the gas generator can generate a large amount of gas to fill the airbag in a short time (about 30ms). The generated gas must be harmless to the human body, and the temperature must not be too high. At the same time, the gas generator must have high reliability And stability. There are mainly gas generators.

Compressed gas type, pyrotechnic type and mixed type. The hybrid gas generator is a combination of a compressed gas type and a pyrotechnic type. It is also a widely used gas generator. Control device. Generally integrated in a microcomputer. When a car accident occurs, the electronic control device receives deceleration signals from different positions of the vehicle body from multiple sensors, and after repeated analysis, comparison, and calculation, determines whether to emit an ignition signal. The control device is required to be able to make very accurate judgments in complex collision situations, and the ignition timing must also be accurately controlled.

When the car is subjected to a certain collision force, the airbag system will trigger a chemical reaction similar to the explosion of a small dose of explosives. The airbag hidden in the car will be inflated and popped up instantly, paving the way before the passenger's body collides with the equipment in the car Effect to reduce the impact force on the body, so as to achieve the effect of reducing passenger injuries.

Car airbags contain substances such as sodium azide (NaN3) or ammonium nitrate (NH4NO3). When a car is hit violently at high speeds, these substances will quickly decompose and generate a large amount of gas, which will fill the airbag. The decomposition of sodium azide produces nitrogen and solid sodium; the decomposition of ammonium nitrate produces a large amount of nitrous oxide (N2O) gas and water vapor.

The airbag system is called SRS. Compared with the seat belt, the airbag is just an auxiliary protection device. The airbag is made of nylon with a special fabric lined with rubber. It is filled with harmless helium when working. The system is activated by a sensor that monitors the extent to which the car's speed is reduced during a collision. Early in the collision, the airbag begins to inflate, and it takes about 0.03 seconds to inflate safely.

It is important that the airbag can be inflated at a very fast rate. This will ensure that the airbag is in place when the passenger's body is restrained by the seat belt while the head is still moving forward. When the head hits the airbag, the airbag starts to vent through the air holes on the surface of the airbag. The gas is expelled at a certain rate, ensuring that people's body parts slow down slowly. Because the safety gas pops up and inflates at a speed of up to 320 km / h, if a person's riding posture is incorrect during a collision, it will cause serious injury.

The airbag system requires that the gas generator can generate a large amount of gas to fill the airbag in a short time (about 30 ms). The generated gas must be harmless to the human body, and the temperature must not be too high. At the same time, the gas generator must be highly reliable. Sex and stability. There are three main types of gas generators: compressed gas type, pyrotechnic type and mixed type. The hybrid gas generator is a combination of a compressed gas type and a pyrotechnic type. It is also a widely used gas generator.

When a car is subjected to a side collision, the risk of injury to drivers and passengers is greater. Because when the car is hit by a front or rear collision, there is a certain buffer space in the front and rear. There is an engine room in the front and a trunk in the back. When a side impact occurs, the "living space" between the human body and the body is very small, and the fatal head of the driver The head and chest directly face and withstand the impact force, so the side protection is more important than the front and back safety protection, and it is more difficult. In addition, the general driver's seat is less equipped with airbags at the driver's neck and even the back. When a collision accident occurs, the head and neck and the back violently and continuously collide with the seat or sway due to severe back and forth or left and right shaking. , Resulting in serious injuries to the driver's head, neck and back.

In summary, how to provide an airbag device that can protect the driver's head, neck, and back when an accident occurs is the research direction of this application.

One object of the present invention is to provide a structure of an anti-collision device, which solves the problem that in the conventional technology, when a driver drives a vehicle accident, the sides of the head and the back are not well protected and injured. Adding head airbags and spine airbags to achieve protection against collisions, the driver's neck and spine can be protected by airbags, improving driver safety.

In order to achieve the above object, the present invention discloses a structure of an anti-collision device, which includes a seat, an airbag device is disposed on the seat, the seat includes a seat back and a headrest, and a sensor is disposed on the seat. A controller of one of the airbag devices is electrically connected to the sensor and a first igniter of a head airbag and a second igniter of a spine airbag. When a collision accident occurs, a signal is transmitted by the sensor in sequence. To the controller, the first igniter and the second igniter, the first gas generator and the second gas generator, thereby inflating and deploying the head airbag and the spine airbag to protect the driver's head The sides of the neck and the back of the neck will not be injured due to severe shaking, which improves the safety of the driver when a collision occurs.

In one embodiment of the present invention, it is also disclosed that the seat is provided with a seat, and the sensor is disposed on the seat back or the seat.

In one embodiment of the present invention, it is also disclosed that a first suture opening and a second suture opening are respectively provided on both sides of the headrest. When the head airbag is inflated and deployed, the first suture opening and the second suture are provided. The opening is opened, the first suture opening forms a first opening, and the second suture opening forms a second opening.

In one embodiment of the present invention, it is also disclosed that the head airbag is inflated and deployed into a U-shaped airbag. The head airbag is provided with two extended side arms, which are respectively formed by the first opening and the second The opening extends outward.

According to an embodiment of the present invention, it is also disclosed that a third suture opening is provided at the lower end of the headrest. When the spinal airbag is inflated and deployed, the third suture crack opens and forms a third opening.

In an embodiment of the present invention, it is also disclosed that the spinal airbag is inflated and deployed into an I-shaped airbag, and the I-shaped airbag extends downward from the third opening.

In one embodiment of the present invention, it is also disclosed that the first propellant and the second propellant are sodium azide (NaN3) or ammonium nitrate (NH4NO3).

According to an embodiment of the present invention, it is also disclosed that the airbag device further includes a power source, and the power source is electrically connected to the controller.

In order to make the Guigui reviewing members have a better understanding and understanding of the features of the new model and the effects achieved, I would like to provide detailed descriptions with examples and cooperation, as follows:

The present invention is a structure of an anti-collision device, which solves the problem that when the driver accidentally drives a vehicle in the conventional technology, the sides of the head and the back are not well protected and injured. The spine airbag protects the driver's neck and spine from airbags when a collision occurs.

Please refer to FIG. 1, FIG. 2, and FIG. 5, which are schematic diagrams of an embodiment of the structure of the novel anti-collision device, a cross-sectional view of an airbag device, and a circuit connection diagram. As shown in the figure, in this embodiment, the structure of the anti-collision device includes a seat 10 and an airbag device 20, wherein the seat 10 is provided with a seat back 12, a headrest 14 and a seat 18; A sensor 16 is disposed on the seat 10, and a first suture slit 142 and a second suture slit 144 are respectively provided on both sides of the headrest 14, and a third suture slit 146 is provided at a lower end of the headrest 14; the airbag device 20 is disposed in the headrest 14, and the airbag device 20 is electrically connected to the sensor 16. The airbag device 20 includes a head airbag 22, a spine airbag 24, a controller 26, and a power source 29. The controller 26 is electrically connected to the sensor 16; the head airbag 22 and the spine airbag 24 are electrically connected to the sensor 16 respectively; wherein the head airbag 22 includes a first igniter 222 and a first gas A generator 223, the first igniter 222 is electrically connected to the controller 26, the first gas generator 223 covers the first igniter 222, and a first propellant 224 is disposed in the head airbag 22; The spine airbag 24 includes a second igniter 242 and a second gas generator 243. The second igniter 242 is electrically connected to the controller 26. The second gas generator 243 covers the second igniter 242. A second propellant 244 is disposed in the spinal balloon 24.

Continuing the above, please refer to FIG. 3 and FIG. 4, which are a schematic diagram of a headrest and a state of use diagram of an embodiment of the structure of the novel anti-collision device. As shown in the figure, the sensor 16 transmits a signal to the controller 26. After the controller 26 confirms that the airbag is triggered, the controller 26 transmits the signal to the first igniter 222 and the second igniter 242. An igniter 222 triggers the first gas generator 223 and ignites the first propellant 224 in the head airbag 22. The gas generated by the first propellant 224 rapidly expands, inflates and deploys the head airbag 22, The head airbag 22 forms a U-shaped airbag 226; the second igniter 242 triggers the second gas generator 243 and ignites the second propellant 244 in the spine airbag 24, and the gas generated by the second propellant 244 Rapidly inflated, the spinal balloon 24 is inflated and deployed, and the spinal balloon 24 forms an I-shaped balloon 246. With the above-mentioned structure, when the vehicle provided with the anti-collision device collides, the head airbag 22 and the spine airbag 24 in the headrest 14 respectively form the U-shaped airbag 226 and the I-shaped airbag 246, which can protect The sides of the driver ’s head and the back of the head and the neck and spine of the driver will not violently hit the seat back 12 or the headrest 14 without any airbags. This structure reduces the impact of the driver and protects the driver Personal safety and improve driving safety.

In the conventional technology, a typical airbag system includes two components: a collision detection ignition device (or a sensor), and an airbag of a gas generator. When the sensor switch is activated, the control circuit inside the vehicle starts to work, and the detection circuit is used to determine whether a collision has really occurred. After judging that the conditions for airbag deployment are correct, the control circuit will transmit the current (or the signal) to the igniter, and by instantaneous rapid heating, the sodium azide (NaN3) or ammonium nitrate ( NH4NO3) ignites. In addition, a large amount of harmless nitrogen-based gas is generated to inflate the airbag to a full state. With a strong impact, the airbag will fully open the steering wheel cover or other sutures to protect the driver's head and neck and The back is unharmed. At the same time, during the ignition of the propellant, the metal mesh cover inside the igniter can cool the rapidly expanding gas, and then the airbag can be slowly exhausted by a small exhaust port on the airbag to play a gradual cushioning function and avoid Obstructs sight after a collision while the body is still moving.

Please continue to refer to FIGS. 1 to 5. As shown in the figure, in actual use, the airbag device 20 further includes the power source 29. The power source 29 is electrically connected to the controller 28 and is the gas generator 28. The controller 26 and the sensor 16 provide power. In this embodiment, the sensor 16 is disposed in the seat 18, the headrest 14, or the back 12, but since the sensor 16 is electrically connected to the airbag device 20 and provides the signal for its deployment, the sensor 16 The sensor 16 may also be disposed outside the seat 10, such as a door, a head or a steering wheel, and its position is not fixed. In this embodiment, the sensor 16 is disposed on the seat back 18. When a collision occurs, the sensor 16 transmits the signal to the controller 26. The controller 26 further includes an arithmetic unit (not shown in the figure). The arithmetic unit can know whether the signal needs to be activated by calculating the speed ratio of the signal. The airbag is deployed. When the controller 26 determines that it is necessary to start the airbag deployment, the controller 26 transmits the signal to the first igniter 222 and the second igniter 242, and triggers the first gas generator 223 and the second gas generation, respectively. The device 243 ignites sodium azide (NaN3) or ammonium nitrate (NH4NO3) of the first propellant 224 and the second propellant 244 by instantaneous rapid heating, thereby generating a large amount of gas, and the head airbag 22 And the back airbag 24 is inflated to a full state. Because the head airbag 22 and the spinal airbag 24 are inflated to fullness in the headrest 14 respectively, the first suture slit 142 and the second suture slit 144 are provided on both sides of the headrest 14 and the lower end of the headrest 14 The third suture slit 146 is provided, so the U-shaped balloon 226 formed by the head airbag 22 stretches the first suture slit 142 and the second suture slit 144 to form a first opening 143 and a second opening, respectively. 145, the extension sidewalls 228 on both sides pass through the first opening 143 and the second opening 145, respectively, and extend outward; the I-shaped airbag 246 formed by the spinal airbag 24 extends the third suture slit 146 and A third opening 147 is formed, and the I-shaped airbag 246 passes through the third opening 147 and extends downward. This avoids the risk of injury to the driver's head and cervical spine due to severe shaking during a collision.

In summary, the structure of an anti-collision device of the present invention, by providing the head airbag 22 and the spine airbag 24 in the headrest 14, the U-shaped airbag 226 and the I-shaped airbag are deployed when a collision accident occurs. The airbag 246 is inflated and deployed through the extended side wall 228 of the U-shaped airbag 226 and the I-shaped airbag 246, protecting the sides of the driver's head and the neck and spine from injuries due to severe shaking, which improves driving when a collision occurs Personnel safety.

Therefore, this new model is truly novel, progressive, and available for industrial use. It should comply with the patent application requirements of China's patent law, apply for a new patent application in accordance with the law, and pray that the Bureau grant the patent at an early date.

However, the above are only the preferred embodiments of the present invention, and are not intended to limit the scope of implementation of the present invention. For example, all equivalent changes and modifications in accordance with the shape, structure, characteristics, and spirit described in the scope of the patent application for the new application are provided. Shall be included in the scope of patent application for this new model.

10‧‧‧ Seat

12‧‧‧back

14‧‧‧Headrest

142‧‧‧First suture opening

143‧‧‧First opening

144‧‧‧Second suture opening

145‧‧‧Second opening

146‧‧‧ Third suture opening

147‧‧‧ third opening

16‧‧‧Sensor

18‧‧‧ seat

20‧‧‧ Airbag device

22‧‧‧Head airbag

222‧‧‧First lighter

223‧‧‧The first gas generator

224‧‧‧first propellant

226‧‧‧U airbag

228‧‧‧extended side arm

24‧‧‧Spine

242‧‧‧Second Lighter

242‧‧‧Second Gas Generator

244‧‧‧second propellant

246‧‧‧I airbag

26‧‧‧Controller

29‧‧‧ Power

Figure 1: It is a schematic diagram of an embodiment of the structure of the novel anti-collision device;
FIG. 2 is a cross-sectional view of an airbag device according to an embodiment of the structure of the novel anti-collision device;
FIG. 3 is a schematic diagram of a headrest of an embodiment of the structure of the novel anti-collision device;
FIG. 4 is a use state diagram of an embodiment of the structure of the novel anti-collision device; and FIG. 5 is a schematic diagram of circuit connections of an embodiment of the structure of the new anti-collision device.

Claims (8)

The structure of an anti-collision device includes:
A seat is provided with a seat back, a headrest is provided on the seatback, a sensor is provided on the seat, and an airbag device is provided in the headrest, and the airbag device is electrically connected to the sensor, The airbag device further includes:
A controller, which is electrically connected to the sensor;
A head airbag, which is electrically connected to the controller, the head airbag includes a first igniter, which is provided with a first gas generator; and a spine airbag, which is electrically connected to the controller The spine airbag includes a second igniter, and a second gas generator is provided on the second igniter;
The sensor transmits a signal to the controller, and the controller transmits the signal to the first igniter and the second igniter. The first igniter triggers the first gas generator and ignites the airbag in the head. One of the first propellants, the head airbag is inflated and deployed; the second igniter triggers the second gas generator and ignites one of the second propellants of the spinal airbag, which inflates and deploys. The structure of the anti-collision device according to item 1 of the scope of patent application, wherein the seat is provided with a seat, and the sensor is provided on the seat back or the seat. The structure of the anti-collision device according to item 1 of the scope of the patent application, wherein a first suture opening and a second suture opening are respectively provided on both sides of the headrest. When the head airbag is inflated and deployed, the first The suture opening and the second suture opening are opened, the first suture opening forms a first opening, and the second suture opening forms a second opening. According to the structure of the anti-collision device described in item 3 of the scope of patent application, wherein the head airbag is inflated and deployed into a U-shaped airbag, the head airbag is provided with two extended side arms, and the two extended side arms are respectively formed by the The first opening and the second opening extend outward. The structure of the anti-collision device according to item 1 of the scope of the patent application, wherein a third suture opening is provided at the lower end of the headrest, and when the spinal airbag is inflated and deployed, the third suture crack opens and forms a third opening. . The structure of the anti-collision device according to item 5 of the scope of the patent application, wherein the back airbag is inflated and deployed into an I-shaped airbag, and the I-shaped airbag extends downward from the third opening. The structure of the anti-collision device according to item 1 of the scope of the patent application, wherein the first propellant and the second propellant are sodium azide (NaN3) or ammonium nitrate (NH4NO3). According to the structure of the anti-collision device described in item 1 of the scope of the patent application, wherein the airbag device further includes a power source, the power source is electrically connected to the controller.