WO2019170165A1

WO2019170165A1 - Wearable safety airbag system

Info

Publication number: WO2019170165A1
Application number: PCT/CN2019/085144
Authority: WO
Inventors: 周承岗
Original assignee: 周承岗
Priority date: 2018-03-09
Filing date: 2019-04-30
Publication date: 2019-09-12
Also published as: CN110239473A

Abstract

A wearable safety airbag system, which utilises a new connecting or mounting means. In particular, an airbag assembly is worn on the body of a passenger, with the support of wireless sensor network (WSN) technology, thereby overcoming the defect that a traditional airbag assembly is fixedly mounted at the middle of a steering wheel or inside a centre console. The present invention is fixed in front of the chest of the passenger, the unfolding direction is the same as the movement direction of the person, the recoil force can reduce the front impact speed of the person, and even if an airbag collides with the person during a rapid expansion stage, the impact on the person will still be less than a collision in the opposite direction. A chest cushioning airbag of the airbag system reduces the impact on the chest of the person, and also inflates and expands to tighten a safety belt. The inside of the airbag is provided with a tubular inner lining, and after unfolding, an angle is formed with respect to the person for the head to move, so as to prevent the head of the passenger from being hit during the unfolding, and to prevent lengthy suffocation and burning. The airbag assembly utilises a connecting structure which is easy to assemble and disassemble, and adjust in terms of position.

Description

Wearable airbag system

Technical field

The invention relates to a car airbag.

Background technique

The airbag is a passive anti-collision measure commonly used in automobiles. However, the front airbag of the front row can only be fixedly installed in the middle of the steering wheel or in the center console. The airbag after starting is deployed in the direction of the occupant, and the speed is up to 300 km/ Hours, plus the occupant's speed of forward movement under inertia, the relative speed of the airbag and the occupant will be higher. If the occupant hits the airbag during the rapid expansion of the airbag, it may cause serious injury, and the timing of the collision is not complete. Controlled, and the occupant's body is not well protected when it deviates from the airbag installation position. The cover, the sundries on the center console, and the hanging ornaments in the car may also cause additional damage to the human body by the airbag, and in the steering wheel. The installation makes the connection structure complicated, the manufacturing cost is high, and the installation and replacement are also inconvenient.

Summary of the invention

The object of the present invention is to provide a vehicle airbag system, which adopts a new connection or installation method, especially under the support of the WSN technology of the wireless sensor network, and wears the airbag module on the occupant, thereby overcoming the fixed installation of the airbag module in the conventional scheme. Some ills in the middle of the steering wheel or in the center console. The present invention has a wearing device (1) or a wearing device (1) outside the system for fixing the integrated airbag (10) and the gas generating device (8) to the front of the occupant, and the airbag (10) is inflated toward the front of the occupant. Expanded, the unfolding direction is the same as the direction of human body movement, and its recoil force can slow down the speed of the human body forward, so that even if the airbag (10) collides with the human body during the rapid expansion phase, the impact on the human body is smaller than that of the opposite collision; (1) It is a fastener that only functions as a wearer. The airbag (10) and the gas generating device (8) can be fixed on the chest of the occupant or on the chest position of the original seat belt on the vehicle, or the wearing device ( 1) itself includes a seat belt, and the occupant can also be fixed on the seat (3); the control device is a sensor that can directly control the gas generating device (8), and is connected to the gas generating device (8), or the control device includes The sensor connected to the gas generating device (8) and the electronic control unit ECU, the collision signal and the control signal are transmitted by wired communication, or the control device comprises a sensor mounted on the frame of the carrier and an electronic control unit ECU having wireless communication Module and gas producing device (8) The sensor or the electronic control unit ECU is connected to form a wireless sensor network WSN, and the collision signal and the control signal are transmitted by wireless communication, and the battery or the power generating device supplies power to the network node.

The invention has a chest cushion airbag (13), which is a separate capsule or a hollow interlayer of the safety belt in the wearing device (1), which can reduce the impact of the airbag (10) on the human chest after inflation, or at the same time, Inflated and inflated to tighten the seat belt in the event of a collision.

The airbag (10) of the present invention has an angle between the human body and the human body to allow the head to move, reducing the probability that the airbag (10) collides with the occupant's head during deployment, and enables the human body to rebound quickly after colliding with the airbag. Leave and avoid prolonged suffocation and burning.

The airbag (10) of the present invention has a tubular inner casing (19) inside, so that the airbag (10) is first extended in the horizontal direction and then extended upwards and downwards to prevent the occupant from being out of the field of view during the deployment of the airbag. The direction is hit by the chin and the tip of the nose, causing panic or injury.

The airbag (10) of the present invention has a three-dimensional shape adapted to the sitting posture of the occupant, and includes a U-shaped structure (23) or a U-shaped structure (25) of the leg. The capsule is distributed on the left and right sides, and the central depression can be It accommodates the head or legs and protects the head or leg from side impact.

The chest cushion airbag (13) of the present invention has a heat insulating layer on the side in contact with the human body, or the chest cushion airbag (13) is supplied by an independent pre-storage air source to prevent the human body from being burnt.

The invention comprises a spring-loaded safety switch (20) controlled by the wearing device (1), the safety switch (20) being switched on when the wearing device (1) is tightened, and vice versa.

The gas generating device (8) of the present invention is wrapped with a protective material or a cushioning material outside, which can protect the component from normal bumping or avoid accidental explosion.

The gas generating device (8) and the wearing device (1) of the present invention adopt a convenient attachment and detachment connection structure, or the wearing device (1) has a length adjusting device for conveniently loading or unloading the gas generating device (8) or adjusting its position.

The wearing device (1) of the present invention comprises a plug (7) and a socket (6). The socket (6) has a control device associated with the gas generating device (14) or other monitoring device in the vehicle, so that the plug (7) If the socket (6) is not properly connected, the gas generating device (14) will not start in the event of a collision or other in-vehicle monitoring devices can react. The types of reactions include, but are not limited to, audible prompts, lighting prompts, and instrument lights. The engine is not lit or the engine cannot be ignited, or the gas generating device (14) is associated with other monitoring devices in the vehicle such that when the gas generating device (14) is started, the engine is automatically turned off, the clutch is disconnected, or the brake system is automatically activated.

DRAWINGS

Figure 1 is an embodiment of a three-point wearing;

Figure 2 is a side elevational view of the airbag after deployment;

Figure 3 is a structural view showing an embodiment in which an air bag is installed in a gas generating device;

Figure 4 is a structural view showing an embodiment in which the airbag is covered outside the gas generating device;

Figure 5 is a schematic view of the deployment process of the bladderless airbag;

Figure 6 is a schematic view showing the process of deploying a bladder;

Figure 7 is an occupant angle view of the airbag with a side protection U-shaped structure;

Figure 8 is a structural diagram of a safety switch controlled by a seat belt.

Implementation

The invention has a wearing device or a wearing device outside the system, and the integrated airbag and the gas generating device are fixed on the chest of the occupant. When the airbag is inflated, it is deployed toward the front of the occupant, the unfolding direction is the same as the direction of the human body movement, and the recoil force can be Slowing down the speed of the human body, so that even if the airbag collides with the human body during the rapid expansion phase, the impact on the human body is less than that of the opposite collision; the wearing device is a fastener that only functions as a wearer, and the airbag and the gas generating device can be used. It is fixed on the chest position of the occupant's chest or the original seat belt on the vehicle, or the wearing device itself includes a seat belt, and the occupant can be fixed on the seat; the control device is a sensor that can directly control the gas generating device, and The gas generating device is connected, or the control device comprises a sensor connected to the gas generating device and an electronic control unit ECU, and the collision signal and the control signal are transmitted by wired communication, or the control device comprises a sensor mounted on the frame of the carrier and The electronic control unit ECU has a wireless communication module and is connected with a gas generating device, a sensor or an electronic control unit ECU. WSN WSN, collision and control signals as radio transmission, a battery or a power supply device to the network node. Referring to Figures 1, 2 and 3, the gas generating device comprises a gunpowder compartment 12 and a gas-filled pyrotechnic charge filled therein, a module compartment 11 and an igniter 14 therein, which are integrated in the casing 8; the casing 8 may be The rigid hard shell structure can also be replaced by a flexible membrane structure, so as to obtain a smaller size and more comfortable to wear; the airbag 10 is folded and installed inside the outer casing 8, and the outer cover is covered with a cover 9, an air inlet and a gunpowder. The air bag 10 is in communication, and the air bag 10 is inflated and then broken out of the cover 9 to expand outward; in order to make the thickness after folding smaller and the opening is smoother, the air bag 10 can also be folded over the outer side of the casing 8 as shown in FIG. The outermost cover is covered with a cover 9; the housing 8 is fixed to the front chest position of the seat belt 1 by the clip 15, and can also be directly fixed to the occupant. The clip 15 is one of the wearing device components of the present invention or an assembly outside the system. Can be replaced by other types of fixing devices, including but not limited to clips, straps, universal buckles or magnetic stickers, sutures, rivets; the safety belt 1 can be original on the vehicle, or can be the wearing device assembly of the present invention One, can be three points Belt, may be a two-point or other wear chest belt embodiment. The airbag 10 is deployed toward the front of the occupant when inflated, and the unfolding direction is the same as the direction of movement of the human body, and the recoil force can slow down the speed of the human body forward, so that even if the airbag 10 collides with the human body during the rapid expansion phase, the impact on the human body is less than The situation of opposing collisions. The control device is a sensor that can directly trigger the igniter 14 and is fixedly connected to the housing 8. The type of the control device can be selected, but not limited to the existing slider type, roller type, ball type or eccentric hammer type, using the inertia of the moving part. To directly detonate the detonator in the gas generating device or turn on the ignition circuit contact; or, the control device is electronic, the component includes a sensor fixedly mounted on the housing 8 and the electronic control unit ECU, the sensor signal and the control signal of the ECU Transmission by conventional wired communication; or, the control device is electronic, and the components include a sensor and an electronic control unit ECU mounted on a rack of the carrier, and a wireless communication module and sensor, an electronic control unit ECU or an igniter 14 Connected to form a wireless sensor network WSN, sensor signals and ECU control signals are transmitted by wireless communication, wireless communication technology types can be used but not limited to existing Bluetooth, WIFI, RFID, ZigBee or NFC; use the power supply or equipment of the vehicle itself There is a battery or vibration power generation device to supply power to the network node. The vibration power generation device adopts but is not limited to the existing magnetoelectric type and static electricity. Micro-vibration generator or a piezoelectric device, the power generation means may be another type of technology, such as solar energy. Gas-producing gunpowder can be used, but not limited to the existing sodium azide, black gold or nitroguanidine. It is required to use a small volume of gas, no residue, and no black wire gold for the filter. The nitroguanidine is selected as an example having a large gas volume, a low gas temperature, no toxicity, or a slightly slower aeration rate.

Referring to FIG. 3, a chest buffer airbag 13 is connected to the outer side of the spring clip 15 on the side where the seat belt 1 is in contact with the human body. This is a separate airbag structure, which is supplied by the gunpowder compartment 12 or has an independent pre-storage source. The state may not pre-store gas, or pre-store a small amount of gas to improve the wearing comfort. When the igniter is detonated, it can be inflated to reduce the impact of the airbag 10 on the human chest, and can also expand and tighten the seat belt instead of the seat belt retractor. The function makes the seat belt structure more concise. In order to simplify the structure, the chest cushion airbag 13 can also be a hollow interlayer of the seat belt 1.

Referring to FIG. 2, after the airbag 10 is inflated and deployed, there is an angle between the front front surface and the head of the human occupant that allows the head to move, reducing the probability that the airbag 10 will collide with the occupant's head during deployment, and the human body is in contact with the airbag. After the collision, you can quickly rebound and avoid suffocation and burning for a long time.

Referring to Fig. 5, when the hollow airbag 10 is opened, the capsule body is opened up and down and left and right immediately after being restrained from the housing 8, so that it is easy to hit the occupant's chin and nose tip in a direction outside the field of view to cause panic or injury. In order to avoid this, as shown in FIG. 6, the inside of the airbag 10 is provided with a tubular inner casing 19, one end of which is closely connected with the air inlet of the airbag 10, and the other end of which is connected to the free end of the airbag 10 or The gas is first passed through the inner casing 19 and then reaches the outer side wall 18. When the airbag 10 is inflated, the tubular inner casing 19 is first inflated to expand the airbag 10 in the horizontal direction, and the free end of the airbag 10 is larger. The housing 8 is then extended up, down, left and right, so that the occupant can be prevented from being hit during the deployment of the airbag 10.

Referring to FIG. 7, a three-dimensional cutting and splicing means, or a tension film structure is provided in the airbag 10 to help shape the airbag 10, and the airbag 10 is deployed to have a three-dimensional shape adapted to the occupant's sitting posture, including the head U-shaped structure 23 or the leg portion U. The shape structure 25, the capsule body is distributed on the left and right sides, and the middle recess can accommodate the head or the legs, so that the head or the leg is protected by the side impact, or the human body can be directly facing the front side. Protected.

Referring to FIG. 3, the side of the chest cushion airbag 13 that is in contact with the human body is connected with a heat insulating layer, which may be a heat insulating material or a gas bag pre-stored with gas, or the chest cushion air bag 13 is provided by an independent pressure pre-storage air source. Gas supply, including but not limited to pressurized seals containing air and carbon dioxide, reduces the temperature during inflation and inflation, and prevents the body from being burnt.

Referring to FIG. 8, the movable belt 1 is fixedly mounted with an electrically movable movable contact piece 21, and the movable contact piece 21 is in contact with the casing 8 via a spring 22, and the casing 8 is fixedly mounted with two control circuits of the igniter 14 or an ignition circuit. The contact 20 is fixed. When the seat belt 1 is in a taut state, the spring 22 is compressed, the movable contact piece 21 is pressed against the fixed contact piece 20 and turned on, so that the igniter 14 can be ignited at a sufficient collision strength when the seat belt 1 When in the relaxed state, the spring 22 pushes the movable contact 21 away from the point-fixing contact 20, so that the igniter 14 cannot be successfully ignited with sufficient impact strength. Under normal use, if the seat belt 1 is not worn, the igniter 1 cannot be used to produce gas gunpowder.

Referring to Fig. 3, the outer side of the casing 8 is wrapped with a protective material or a cushioning material to protect the component from damage or to avoid accidental explosion in a normal bump.

Referring to FIG. 3, in order to quickly load, unload, replace or adjust the position of the gas generating device, a convenient connection structure between the housing 8 and the safety belt 1 is adopted, including but not limited to types including but not limited to clips, straps, and universal buckles. Or the magnetic strip, or the length adjustment device on the seat belt 1 is convenient for loading and unloading the housing 8 or adjusting its position.

Referring to Figure 1, the seat belt 1 includes a component plug 7 and a socket 6 in which a control device is associated with the igniter 14 or other monitoring device in the vehicle so that the plug 7 and the socket 6 are not properly connected. The igniter 14 of the pneumatic device will not activate in the event of a collision, or other in-vehicle monitoring devices may react, including but not limited to audible cues, lighting illuminators, instrument lights not illuminating or engine igniting, or igniters 14 is associated with other monitoring devices in the vehicle such that when the igniter 14 is activated, the engine is automatically turned off, the clutch is disconnected, or the brake system is automatically activated.

Claims

A wearable airbag system, comprising an airbag (10), a gas generating device (8) and a control device, characterized in that the wearing device (1) or the wearing device (1) outside the system is used to integrate the integrated airbag (10) and The gas generating device (8) is fixed on the chest of the occupant, and the airbag (10) is deployed toward the front of the occupant when inflated, and the unfolding direction is the same as the direction of movement of the human body, and the recoil force can slow down the speed of the human body, so that even the airbag (10) ) colliding with the human body during the rapid expansion phase, and the impact on the human body is also less than that of the opposite collision; the wearing device (1) is a fastener that only functions as a wearer, and the airbag (10) and the gas generating device (8) can be used. It is fixed on the chest position of the occupant's chest or the original seat belt on the vehicle. Or, the wearing device (1) itself includes a seat belt, and the occupant can be fixed on the seat (3); the control device can directly control the production. The sensor of the gas device (8) is connected to the gas generating device (8), or the control device includes a sensor connected to the gas generating device (8) and an electronic control unit ECU, and the collision signal and the control signal are transmitted by wired communication, or , control device including installation The sensor on the rack of the vehicle and the electronic control unit ECU have a wireless communication module connected with the gas generating device (8), the sensor or the electronic control unit ECU to form a wireless sensor network WSN, and the collision signal and the control signal are transmitted by wireless communication. There is a battery or power generating device to supply power to the network node.
The wearable airbag system according to claim 1, characterized in that the chest cushion airbag (13) is a separate capsule or a hollow interlayer of the seat belt in the wearing device (1), which can reduce the airbag after inflation. (10) Impact on the human chest, or at the same time, inflating and tightening the seat belt in the event of a collision.
The wearable airbag system according to claim 1 or 2, wherein the airbag (10) has an angle between the human body and the human body to allow the head to move, and the airbag (10) is prevented from colliding with the occupant's head during deployment. The probability, and the body can quickly rebound after colliding with the airbag, to avoid prolonged suffocation and burning.
The wearable airbag system according to claim 3, wherein the airbag (10) has a tubular inner casing (19) inside, so that the airbag (10) is first extended in the horizontal direction and then extended upwards and downwards. Prevents the occupant from causing panic or injury when hitting the chin and the tip of the nose in the direction outside the field of view during the deployment of the airbag.
A wearable airbag system according to claim 1, 2 or 4, wherein the airbag (10) has a three-dimensional shape adapted to the occupant's sitting posture, including a head U-shaped structure (23) or a leg U-shaped shape. Structure (25), the capsules are distributed on the left and right sides, and the middle recess can accommodate the head or legs, so that the head or leg is protected by side impact.
The wearable airbag system according to claim 5, characterized in that the side of the chest cushion airbag (13) in contact with the human body is insulated, or the chest cushion airbag (13) is supplied by an independent pre-storage air source. Prevent the body from being burnt.
A wearable airbag system according to claim 1, 2, 4 or 6, characterized in that it comprises a spring-loaded safety switch (20) controlled by the wearing device (1), which is insured when the wearing device (1) is tightened The switch (20) is turned on, otherwise it is turned off.
The wearable airbag system according to claim 7, characterized in that the gas generating device (8) is wrapped with a protective material or a cushioning material outside, which can protect the component or prevent accidental explosion in a normal bump.
A wearable airbag system according to claim 1, 2, 4, 6 or 8, characterized in that a convenient attachment and detachment connection structure or a wearing device is used between the gas generating device (8) and the wearing device (1) There is a length adjustment device for loading and unloading the gas generating device (8) or adjusting its position.
The wearable airbag system according to claim 9, characterized in that the wearing device (1) comprises a plug (7) and a socket (6), and the socket (6) has a control device and a gas generating device (14) or The other monitoring devices in the vehicle are associated so that when the plug (7) and the socket (6) are not properly connected, the gas generating device (14) will not start in the event of a collision or other in-vehicle monitoring devices can react, the type of reaction Including but not limited to audible prompts, lighting prompts, meter lights are not lit or the engine is not ignited, or the gas generating device (14) is associated with other monitoring devices in the vehicle such that when the gas generating device (14) is started, the engine is automatically turned off, The clutch is disconnected from the power or the brake system is automatically activated.