WO2010005240A2 - Airbag having a multilayer structure - Google Patents
Airbag having a multilayer structure Download PDFInfo
- Publication number
- WO2010005240A2 WO2010005240A2 PCT/KR2009/003741 KR2009003741W WO2010005240A2 WO 2010005240 A2 WO2010005240 A2 WO 2010005240A2 KR 2009003741 W KR2009003741 W KR 2009003741W WO 2010005240 A2 WO2010005240 A2 WO 2010005240A2
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- WIPO (PCT)
- Prior art keywords
- cushion
- gas
- unit
- pressure
- airbag
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/2334—Expansion control features
- B60R21/2346—Soft diffusers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/203—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in steering wheels or steering columns
Definitions
- the present invention relates to an airbag having a multi-layered structure. More specifically, the inside of the airbag cushion is configured in a multi-layer set to different pressures, and each of the layers includes a sensor and a gas outlet for sensing pressure, respectively,
- the present invention relates to an airbag having a multi-layer structure that can reduce the secondary accident caused by the airbag pressure by rupturing sequentially from the outermost cushion layer when detecting a pressure higher than the pressure.
- the airbag system installed in a vehicle is a representative passenger protection device together with a seat belt as a device for protecting a driver or a passenger from an impact in a vehicle crash.
- the airbag system consists of a detection system and an airbag module.
- the working gas device is exploded, and the airbag is momentarily inflated by the explosion gas.
- the airbag is fully operated from a collision for a short time of about 50 / 1,000 seconds, and the gas used in the airbag is a gas stored in a high pressure gas or a high pressure gas container generated by rapid combustion of a solid.
- This airbag system has been used in the world because of the excellent protection of passengers in the event of a crash, but the use of this airbag system has increased dramatically. That is, the airbag itself shocks the driver or passenger during the airbag explosion process, and even the pressure of the airbag is uniformly maintained according to the driver's or passenger's physical condition or the physical characteristics of the occupant due to an accident, and thus, such as a fracture or choking. It poses another deadly danger.
- the present invention has been proposed to solve the above problems of the conventionally proposed methods, the interior of the airbag cushion composed of a multi-layer set to a different pressure, each layer has a sensor and a gas outlet for sensing the pressure It is provided to enable the airbag to reduce the secondary accident caused by the pressure of the airbag by sequentially bursting from the outermost cushion layer when detecting a pressure above a predetermined pressure.
- control part which senses the pressure applied to each said cushion part, and breaks each said cushion part according to a predetermined condition.
- the gas supply unit Preferably, the gas supply unit, the gas supply unit, and
- It may include at least one gas injection unit for supplying the gas generated by the gas generating unit to each cushion unit.
- the cushion unit may include at least two or more gas ejection units configured to be easily ruptured.
- control unit Preferably, the control unit,
- At least one pressure sensor for sensing pressure applied to each of the cushion units
- the pressure sensor When the pressure is detected by the pressure sensor or more than a predetermined value, it may include a cushion rupture for rupturing the corresponding cushion.
- the cushion rupture unit may rupture the cushion unit by further injecting gas.
- the cushion rupture unit may rupture the cushion unit by opening the at least two gas outlets.
- the cushion rupture unit may rupture the cushion unit by cutting an incision part pre-installed in the cushion unit.
- a condition may be set to rupture the at least two or more cushions in order from the outside.
- the inside of the airbag cushion is composed of a multi-layer set to different pressures, and each of the layers provided with a sensor and a gas outlet for sensing the pressure, respectively, By sensing the pressure from the outermost cushion layer in turn, it is possible to provide an airbag that can reduce secondary accidents caused by the airbag pressure.
- FIG. 1 is a view showing a cut surface of the airbag 100 having a multi-layer structure according to an embodiment of the present invention.
- FIG. 2 is a flowchart illustrating the operation of the controller 130 of the airbag having a multilayer structure according to an embodiment of the present invention.
- control unit 130 control unit
- FIG. 1 is a view showing a cut surface of the airbag 100 having a multi-layer structure according to an embodiment of the present invention.
- the airbag 100 having a multi-layer structure according to an embodiment of the present invention, at least two or more cushions 110, each configured to withstand different pressures, at least two or more
- the gas supply unit 120 for supplying gas to the cushion unit 110, the control unit 130 for detecting the pressure applied to each of the cushion unit 110 to rupture each of the cushion unit 110 in accordance with a predetermined condition Include.
- the cushion unit 110 is set to withstand different pressures, each composed of at least two or more layers, and serves to protect the user from impact.
- the cushion unit 110 includes at least two or more gas ejection units 112 configured to easily break each of the cushion units.
- the pressure that can be tolerated for each cushion unit 110 can be configured differently. For example, by setting the cushion portion 110 of the outermost portion to a low pressure and the innermost cushion portion to a high pressure, excessive pressure that may damage the airbag user while still maintaining the protection function of the airbag. And impact can be reduced.
- the gas ejection unit 112 configured in each cushion unit 110 detects a pressure equal to or greater than a predetermined value by the pressure sensing sensor 132 in the control unit 130, so that the cushion rupture unit 134 may provide the cushion unit 110.
- the cushion unit 110 When the cushion unit 110 is ruptured by further gas injection, the cushion unit 110 can be ruptured smoothly without affecting the user by opening the gas ejection unit 112 located at the lower portion of the cushion unit 110. Do it.
- the gas supply unit 120 serves to inflate the cushion unit 110 by generating gas and supplying the same to the cushion unit 110.
- the gas supply unit 120 is a gas generating unit 122 for rapidly generating a gas as the gas generating agent is burned, and at least one of supplying gas generated by the gas generating unit 122 to each cushion unit. It can be configured to include the above gas injection unit 124.
- the gas injection unit 124 may be configured to have the same number of cushion units 110 as to inject gas into each of the cushion units 110 having a multilayer structure.
- the controller 130 When the pressure abnormality of each predetermined cushion unit 110 is sensed, the controller 130 ruptures the outermost cushion unit 110 to control the airbag user from being subjected to excessive pressure and impact.
- the control unit 130 the condition is set to rupture at least two or more cushions 110 in order from the outside, for this purpose at least one or more pressure sensing for sensing the pressure applied to each cushion unit 110
- the sensor 132 and the pressure detecting sensor 132 may be configured to include a cushion rupture unit 134 to rupture the cushion unit 110 when a pressure of a predetermined value or more is sensed.
- the pressure sensor 132 may be attached to each of the cushion unit 110, thereby detecting the pressure of each of the cushion unit 110.
- the cushion rupture unit 134 by rupturing each cushion unit 110 in order from the outside in accordance with the detected pressure value This reduces the excessive pressure and shock that the user receives. This is because the shock applied to the user is reduced by effectively absorbing the pressure caused by the collision with the user due to the rupture of the cushion portion.
- the cushion rupture unit 134 ruptures the cushion unit 110.
- a method of rupturing the cushion unit 110 by allowing the cushion rupture unit 134 to further inject gas into the cushion unit 110 may be used.
- the gas is further injected into the cushion unit 110 to raise the pressure of the cushion unit 110 above the reference pressure to rupture the cushion unit 110.
- the cushion unit ruptures while effectively dispersing the rupture shock of the cushion unit by opening at least two or more gas outlets 112 so that the user is not impacted. It is preferable to use a combination of methods.
- a method of rupturing the cushion unit 110 by opening at least two or more gas outlets 112 may be used.
- the method may be used together with a method of rupturing the cushion unit 110 by further injecting gas into the cushion unit 110.
- a method of rupturing the cushion unit 110 using a cutout pre-installed in the cushion unit 110 may also be used.
- the cutout is prepared in advance in the cushion unit 110, and when the pressure value detected by the pressure sensor 132 becomes more than a predetermined pressure value, by cutting off the cutout in the cushion rupture unit 134, By discharging the gas injected into the unit 110 very quickly and effectively, the pressure caused by the collision with the user is effectively distributed.
- the present method may also be used with a method of rupturing the cushion unit 110 by allowing gas to be injected into the cushion unit 110.
- FIG. 2 is a flowchart illustrating an operation of a controller 130 of an airbag having a multilayer structure according to an exemplary embodiment of the present invention.
- the control unit 130 of the airbag according to an embodiment of the present invention, the step of exploding the airbag due to the collision detection (S210), determining whether the pressure in the outermost cushion portion is greater than the reference value (S220), and additionally injecting gas until the outermost cushion portion is ruptured (S230).
- Step S210 serves to explode the airbag due to the first collision detection.
- the gas generator 122 of the gas supply unit 120 burns the gas generating agent to generate a gas rapidly, and the gas generated by the gas generator 122 Is supplied to each cushion portion by at least one gas injection portion 124.
- Step S220 serves to determine whether the pressure in the outermost cushion portion is greater than or equal to the reference value.
- the outermost cushion portion means the outermost cushion portion which is not currently ruptured and maintains a constant pressure.
- the pressure sensed by the pressure sensor 132 is applied above a preset value, the airbag user is shocked. Since excessive pressure may be applied, it is determined whether or not to rupture the outermost cushion unit 110 by sensing it. At this time, if the pressure in the cushion portion is less than the reference value, it can be seen that the appropriate pressure for the user protection is maintained so that the constant pressure is maintained without rupturing the cushion portion.
- Step S230 serves to rupture the outermost cushion unit when the pressure is determined to be greater than or equal to the reference value as a result of the determination in step S220. That is, when the pressure value sensed by the pressure sensor 132 in step S220 is greater than or equal to a predetermined pressure value, the cushion rupture unit 134 ruptures the outermost cushion unit 110 and excessive pressure received by the user. It can reduce the impact.
- the cushion rupture portion 134 ruptures the cushion portion 110 by causing gas to be injected into the cushion portion 110, at least.
- a method of rupturing the cushion unit 110 by opening two or more gas outlets 112 a method of rupturing the cushion unit 110 using a cutout pre-installed in the cushion unit 110, and a combination of the above methods.
- One way may be used.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
The present invention relates to an airbag having a multilayer structure. In detail, the airbag includes (1) at least two or more cushion units which are set to withstand different levels of pressure; (2) a gas supply unit for supplying gas to the at least two or more cushion units; and (3) a control unit for sensing the pressure being applied to each of the cushion units and deploying each of the cushion units in accordance with a predetermined condition. The airbag having a multilayer structure according to the present invention has an airbag cushion with an interior configured into multiple layers with pressure levels different from each other. Each of the multiple layers is equipped with a pressure sensor and a gas outlet port such that cushion layers are inflated in series starting from the outermost cushion layer upon sensing a pressure higher than a preset pressure level, thus preventing secondary accidents and damages caused by the pressure of the airbag.
Description
본 발명은 다층 구조를 갖는 에어백에 관한 것으로서, 보다 구체적으로는 에어백 쿠션의 내부를 서로 다른 압력으로 설정된 다층으로 구성하고, 각각의 층마다 압력을 감지하는 센서 및 가스 배출구를 각각 구비함으로써, 미리 설정된 압력 이상의 압력을 감지 시 가장 바깥의 쿠션 층부터 차례대로 파열시킬 수 있도록 함으로써, 에어백의 압력에 의해 유발되는 2차적인 사고를 줄일 수 있는 다층 구조를 갖는 에어백에 관한 것이다.The present invention relates to an airbag having a multi-layered structure. More specifically, the inside of the airbag cushion is configured in a multi-layer set to different pressures, and each of the layers includes a sensor and a gas outlet for sensing pressure, respectively, The present invention relates to an airbag having a multi-layer structure that can reduce the secondary accident caused by the airbag pressure by rupturing sequentially from the outermost cushion layer when detecting a pressure higher than the pressure.
차량에 설치되는 에어백 시스템은 차량 충돌 시 충격으로부터 운전자 또는 동승자를 보호하기 위한 장치의 일종으로서 안전벨트와 더불어 대표적인 탑승객 보호 장치이다. 일반적으로 에어백 시스템은 감지 시스템과 에어백 모듈로 이루어져 있는데, 센서에 의해 충돌이 감지되면 작동기체장치가 폭발하게 되며, 폭발가스로 인해 에어백이 순간적으로 부풀게 된다. 이때 충돌부터 에어백이 완전히 작동되는 시간은 보통 50/1,000초 정도의 짧은 시간이며, 에어백에 사용되는 가스는 고체의 급격한 연소로 발생되는 고압가스나 고압가스 용기에 저장된 기체를 사용한다.The airbag system installed in a vehicle is a representative passenger protection device together with a seat belt as a device for protecting a driver or a passenger from an impact in a vehicle crash. In general, the airbag system consists of a detection system and an airbag module. When a collision is detected by the sensor, the working gas device is exploded, and the airbag is momentarily inflated by the explosion gas. At this time, the airbag is fully operated from a collision for a short time of about 50 / 1,000 seconds, and the gas used in the airbag is a gas stored in a high pressure gas or a high pressure gas container generated by rapid combustion of a solid.
이러한 에어백 시스템은 충돌 때 승객 보호 성능이 매우 우수하므로 세계적으로 사용이 급격히 증가하게 되었으나, 이러한 사용의 증가와 더불어 심각한 부작용도 함께 나타나게 되었다. 즉, 에어백 자체가 에어백 폭발 과정에서 운전자 또는 동승자에게 충격을 주고, 심지어는 사고에 의해 운전자나 동승자가 처한 상황이나 탑승자의 신체적 특징에 맞지 않게 에어백의 압력이 일률적으로 유지됨으로써 골절이나 질식과 같은 또 다른 치명적인 위험을 초래하고 있다.This airbag system has been used in the world because of the excellent protection of passengers in the event of a crash, but the use of this airbag system has increased dramatically. That is, the airbag itself shocks the driver or passenger during the airbag explosion process, and even the pressure of the airbag is uniformly maintained according to the driver's or passenger's physical condition or the physical characteristics of the occupant due to an accident, and thus, such as a fracture or choking. It poses another deadly danger.
본 발명은 기존에 제안된 방법들의 상기와 같은 문제점들을 해결하기 위해 제안된 것으로서, 에어백 쿠션의 내부를 서로 다른 압력으로 설정된 다층으로 구성하고, 각각의 층마다 압력을 감지하는 센서 및 가스 배출구를 각각 구비하여, 미리 설정된 압력 이상의 압력을 감지 시 가장 바깥의 쿠션 층부터 차례대로 터질 수 있도록 함으로써, 에어백의 압력에 의해 유발되는 2차적인 사고를 줄일 수 있는 에어백을 제공하는 것을 그 목적으로 한다.The present invention has been proposed to solve the above problems of the conventionally proposed methods, the interior of the airbag cushion composed of a multi-layer set to a different pressure, each layer has a sensor and a gas outlet for sensing the pressure It is provided to enable the airbag to reduce the secondary accident caused by the pressure of the airbag by sequentially bursting from the outermost cushion layer when detecting a pressure above a predetermined pressure.
상기한 목적을 달성하기 위한 본 발명의 특징에 따른 다층 구조를 갖는 에어백은, Air bag having a multilayer structure according to the characteristics of the present invention for achieving the above object,
(1) 각각 서로 다른 압력을 견딜 수 있도록 설정된 적어도 두 개 이상의 쿠션부;(1) at least two cushions each configured to withstand different pressures;
(2) 상기 적어도 두 개 이상의 쿠션부에 가스를 공급하는 가스공급부; 및(2) a gas supply unit supplying gas to the at least two cushion units; And
(3) 상기 각 쿠션부에 가해지는 압력을 감지하여 미리 지정된 조건에 따라 상기 각 쿠션부를 파열시키는 제어부를 포함하는 것을 그 구성상의 특징으로 한다.(3) It is characterized by including the control part which senses the pressure applied to each said cushion part, and breaks each said cushion part according to a predetermined condition.
바람직하게는, 상기 가스공급부는, Preferably, the gas supply unit,
a. 가스 발생제를 연소시킴에 따라 가스를 급격하게 발생시키는 가스발생부; 및a. A gas generator for rapidly generating a gas as the gas generator is burned; And
b. 상기 가스발생부에 의해 발생된 가스를 각 쿠션부에 공급하는 적어도 하나 이상의 가스주입부를 포함할 수 있다.b. It may include at least one gas injection unit for supplying the gas generated by the gas generating unit to each cushion unit.
바람직하게는, 상기 쿠션부는, 파열이 쉽도록 구성된 적어도 두 개 이상의 가스분출부를 포함할 수 있다.Preferably, the cushion unit may include at least two or more gas ejection units configured to be easily ruptured.
바람직하게는, 상기 제어부는,Preferably, the control unit,
c. 상기 각 쿠션부에 가해지는 압력을 감지하는 적어도 하나 이상의 압력 감지 센서; 및c. At least one pressure sensor for sensing pressure applied to each of the cushion units; And
d. 상기 압력 감지 센서에서 미리 지정된 값 이상의 압력이 감지될 경우, 해당 쿠션부를 파열시키는 쿠션파열부를 포함할 수 있다.d. When the pressure is detected by the pressure sensor or more than a predetermined value, it may include a cushion rupture for rupturing the corresponding cushion.
더욱 바람직하게는, 상기 쿠션파열부는, 가스를 더 주입시킴으로써 상기 쿠션부를 파열시킬 수 있다.More preferably, the cushion rupture unit may rupture the cushion unit by further injecting gas.
더욱 바람직하게는, 상기 쿠션파열부는 상기 적어도 두 개 이상의 가스분출구를 개방시키는 것에 의해 상기 쿠션부를 파열시킬 수 있다.More preferably, the cushion rupture unit may rupture the cushion unit by opening the at least two gas outlets.
더욱 바람직하게는, 상기 쿠션파열부는, 상기 쿠션부에 미리 설치된 절개부를 절개시키는 것에 의해 상기 쿠션부를 파열시킬 수 있다.More preferably, the cushion rupture unit may rupture the cushion unit by cutting an incision part pre-installed in the cushion unit.
바람직하게는, 상기 제어부는, 상기 적어도 두 개 이상의 쿠션부를 외측부터 차례대로 파열시키도록 조건이 설정될 수 있다.Preferably, the control unit, a condition may be set to rupture the at least two or more cushions in order from the outside.
본 발명에서 제안하고 있는 다층 구조를 갖는 에어백에 따르면, 에어백 쿠션의 내부를 서로 다른 압력으로 설정된 다층으로 구성하고, 각각의 층마다 압력을 감지하는 센서 및 가스 배출구를 각각 구비하여, 미리 설정된 압력 이상의 압력을 감지 시 가장 바깥의 쿠션 층부터 차례대로 터질 수 있도록 함으로써, 에어백의 압력에 의해 유발되는 2차적인 사고를 줄일 수 있는 에어백을 제공할 수 있다.According to the airbag having a multi-layer structure proposed by the present invention, the inside of the airbag cushion is composed of a multi-layer set to different pressures, and each of the layers provided with a sensor and a gas outlet for sensing the pressure, respectively, By sensing the pressure from the outermost cushion layer in turn, it is possible to provide an airbag that can reduce secondary accidents caused by the airbag pressure.
도 1은 본 발명의 일실시예에 따른 다층 구조를 갖는 에어백(100)의 절단면을 도시한 도면이다.1 is a view showing a cut surface of the airbag 100 having a multi-layer structure according to an embodiment of the present invention.
도 2는 본 발명의 일실시예에 따른 다층구조를 갖는 에어백의 제어부(130) 동작을 도시한 흐름도이다.2 is a flowchart illustrating the operation of the controller 130 of the airbag having a multilayer structure according to an embodiment of the present invention.
<도면 중 주요 부분에 대한 부호의 설명><Explanation of symbols for main parts of the drawings>
100 : 다층 구조를 갖는 에어백 100 : air bag having a multilayer structure
110 : 쿠션부110: cushion portion
112 : 가스 분출부112: gas blowing unit
120 : 가스 공급부120: gas supply unit
122 : 가스 발생부122: gas generator
124 : 가스 주입부124: gas injection unit
130 : 제어부 130: control unit
132 : 압력 감지 센서132: pressure sensor
134 : 쿠션 파열부134: cushion rupture
이하에서는 첨부된 도면들을 참조하여, 본 발명에 따른 실시예에 대하여 상세하게 설명하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 발명의 일 실시예에 따른 다층 구조를 갖는 에어백(100)의 절단면을 도시한 도면이다. 도 1에 도시된 바와 같이, 본 발명의 일실시예에 따른 다층구조를 갖는 에어백(100)은, 각각 서로 다른 압력을 견딜 수 있도록 설정된 적어도 두 개 이상의 쿠션부(110), 상기 적어도 두 개 이상의 쿠션부(110)에 가스를 공급하는 가스공급부(120), 상기 각 쿠션부(110)에 가해지는 압력을 감지하여 미리 지정된 조건에 따라 상기 각 쿠션부(110)를 파열시키는 제어부(130)를 포함한다.1 is a view showing a cut surface of the airbag 100 having a multi-layer structure according to an embodiment of the present invention. As shown in Figure 1, the airbag 100 having a multi-layer structure according to an embodiment of the present invention, at least two or more cushions 110, each configured to withstand different pressures, at least two or more The gas supply unit 120 for supplying gas to the cushion unit 110, the control unit 130 for detecting the pressure applied to each of the cushion unit 110 to rupture each of the cushion unit 110 in accordance with a predetermined condition Include.
쿠션부(110)는, 각각이 서로 다른 압력을 견딜 수 있도록 설정되고, 적어도 두 개 이상의 여러 겹으로 구성되며 사용자를 충격으로부터 보호하는 역할을 한다. 또한 상기 쿠션부(110)는 쿠션부 각각의 파열이 쉽도록 구성된 적어도 두 개 이상의 가스분출부(112)를 포함한다. 이렇게 쿠션부(110)를 여러 겹으로 구성함으로써 각 쿠션부(110)마다 견딜 수 있는 압력을 달리 구성할 수 있다. 예를 들어, 최외각 부분의 쿠션부(110)는 낮은 압력으로 설정하고, 가장 안쪽의 쿠션부는 높은 압력으로 설정함으로써, 에어백이 가지는 보호 기능은 여전히 유지하면서 에어백 사용자에게 피해가 될 수도 있는 과도한 압력 및 충격을 줄일 수 있게 된다. 각 쿠션부(110)에 구성된 가스 분출부(112)는, 제어부(130)에서 상기 압력 감지 센서(132)에서 미리 지정된 값 이상의 압력을 감지하여 쿠션파열부(134)가 상기 쿠션부(110)에 가스를 더 주입시킴으로써 쿠션부(110)를 파열시킬 경우, 쿠션부(110) 하단 부분에 위치한 가스 분출부(112)를 개방함으로써 사용자에게 영향을 주지 않고 원활히 쿠션부(110)의 파열이 가능하도록 한다.The cushion unit 110 is set to withstand different pressures, each composed of at least two or more layers, and serves to protect the user from impact. In addition, the cushion unit 110 includes at least two or more gas ejection units 112 configured to easily break each of the cushion units. By configuring the cushion unit 110 in multiple layers as described above, the pressure that can be tolerated for each cushion unit 110 can be configured differently. For example, by setting the cushion portion 110 of the outermost portion to a low pressure and the innermost cushion portion to a high pressure, excessive pressure that may damage the airbag user while still maintaining the protection function of the airbag. And impact can be reduced. The gas ejection unit 112 configured in each cushion unit 110 detects a pressure equal to or greater than a predetermined value by the pressure sensing sensor 132 in the control unit 130, so that the cushion rupture unit 134 may provide the cushion unit 110. When the cushion unit 110 is ruptured by further gas injection, the cushion unit 110 can be ruptured smoothly without affecting the user by opening the gas ejection unit 112 located at the lower portion of the cushion unit 110. Do it.
가스공급부(120)는, 가스를 발생시키고 이를 쿠션부(110)에 공급함으로써 상기 쿠션부(110)를 팽창시키도록 하는 역할을 한다. 이러한 가스공급부(120)는 가스 발생제를 연소시킴에 따라 가스를 급격하게 발생시키는 가스발생부(122), 및 상기 가스발생부(122)에 의해 발생된 가스를 각 쿠션부에 공급하는 적어도 하나 이상의 가스주입부(124)를 포함하도록 구성할 수 있다. 가스주입부(124)는 다층 구조를 갖는 쿠션부(110) 각각에 가스를 주입하기 위하여 쿠션부(110)의 수와 동일하게 구성될 수 있다.The gas supply unit 120 serves to inflate the cushion unit 110 by generating gas and supplying the same to the cushion unit 110. The gas supply unit 120 is a gas generating unit 122 for rapidly generating a gas as the gas generating agent is burned, and at least one of supplying gas generated by the gas generating unit 122 to each cushion unit. It can be configured to include the above gas injection unit 124. The gas injection unit 124 may be configured to have the same number of cushion units 110 as to inject gas into each of the cushion units 110 having a multilayer structure.
제어부(130)는, 미리 지정된 각 쿠션부(110)의 압력 이상이 감지되는 경우, 최외각의 쿠션부(110)부터 파열시킴으로써 에어백 사용자가 과도한 압력 및 충격을 받지 않도록 제어하는 역할을 한다. 이러한 제어부(130)는, 적어도 두 개 이상의 쿠션부(110)를 외측부터 차례대로 파열시키도록 조건이 설정되어 지는데, 이를 위하여 각 쿠션부(110)에 가해지는 압력을 감지하는 적어도 하나 이상의 압력 감지 센서(132), 및 압력 감지 센서(132)에서 미리 지정된 값 이상의 압력이 감지될 경우, 해당 쿠션부(110)를 파열시키는 쿠션파열부(134)를 포함하도록 구성될 수 있다. 상기 압력 감지 센서(132)는 각 쿠션부(110)마다 하나 씩 부착될 수 있으며, 이에 의해 각 쿠션부(110)마다의 압력을 감지할 수 있다. 이때 상기 압력 감지 센서(132)에서 감지된 압력 값이 미리 지정된 압력 값 이상이 되는 경우, 쿠션파열부(134)는, 감지된 압력 값에 따라 각 쿠션부(110)를 외측부터 차례대로 파열시킴으로써, 사용자가 받는 과도한 압력 및 충격을 줄여주게 된다. 이것은, 쿠션부의 파열에 의하여 사용자와의 충돌에 의한 압력을 효과적으로 흡수함으로써 사용자에게 되돌려 가해지는 충격을 줄여주기 때문이다.When the pressure abnormality of each predetermined cushion unit 110 is sensed, the controller 130 ruptures the outermost cushion unit 110 to control the airbag user from being subjected to excessive pressure and impact. The control unit 130, the condition is set to rupture at least two or more cushions 110 in order from the outside, for this purpose at least one or more pressure sensing for sensing the pressure applied to each cushion unit 110 The sensor 132 and the pressure detecting sensor 132 may be configured to include a cushion rupture unit 134 to rupture the cushion unit 110 when a pressure of a predetermined value or more is sensed. The pressure sensor 132 may be attached to each of the cushion unit 110, thereby detecting the pressure of each of the cushion unit 110. At this time, when the pressure value detected by the pressure sensor 132 becomes more than a predetermined pressure value, the cushion rupture unit 134, by rupturing each cushion unit 110 in order from the outside in accordance with the detected pressure value This reduces the excessive pressure and shock that the user receives. This is because the shock applied to the user is reduced by effectively absorbing the pressure caused by the collision with the user due to the rupture of the cushion portion.
쿠션파열부(134)가 쿠션부(110)를 파열시키는 방식으로는 다양한 방식들이 이용될 수 있다. 먼저, 쿠션파열부(134)가 쿠션부(110)에 가스를 더 주입되도록 함으로써 쿠션부(110)를 파열시키는 방식이 이용될 수 있다. 본 방식에서는, 쿠션부(110)에 가스를 더 주입시켜 쿠션부(110)의 압력을 기준 압력 이상으로 높임으로써 쿠션부(110)를 파열시키게 된다. 이때, 쿠션부(110)의 파열에 의하여 사용자가 충격을 받을 수 있으므로, 사용자가 충격을 받지 않도록 적어도 두 개 이상의 가스분출구(112)를 개방시키는 것에 의하여 쿠션부의 파열 충격을 효과적으로 분산시키면서 쿠션부를 파열시키는 방식이 함께 사용되는 것이 바람직하다. 다른 방식으로서, 적어도 두 개 이상의 가스분출구(112)를 개방시키는 것에 의하여 쿠션부(110)를 파열시키는 방식이 사용될 수 있다. 본 방식에서는, 쿠션부(110)에 주입된 가스를 적어도 두 개 이상 설치된 가스분출구(112)를 이용하여 빠르게 배출시킴으로써, 사용자와의 충돌에 의한 압력을 효과적으로 분산시키게 된다. 본 방식은 앞서 설명한 바와 같이, 쿠션부(110)에 가스를 더 주입되도록 함으로써 쿠션부(110)를 파열시키는 방식과 함께 사용될 수 있다. 또 다른 방식으로서, 쿠션부(110)에 미리 설치된 절개부를 이용하여 쿠션부(110)를 파열시키는 방식도 사용될 수 있다. 본 방식은, 쿠션부(110)에 절개부를 미리 준비해 두었다가, 압력 감지 센서(132)에서 감지된 압력 값이 미리 지정된 압력 값 이상이 되는 경우, 쿠션파열부(134)에서 절개부를 절개시킴으로써, 쿠션부(110)에 주입된 가스를 매우 빠르고 효과적으로 배출시킴으로써, 사용자와의 충돌에 의한 압력을 효과적으로 분산시키게 된다. 본 방식 역시, 쿠션부(110)에 가스를 더 주입되도록 함으로써 쿠션부(110)를 파열시키는 방식과 함께 사용될 수도 있다.Various methods may be used as the cushion rupture unit 134 ruptures the cushion unit 110. First, a method of rupturing the cushion unit 110 by allowing the cushion rupture unit 134 to further inject gas into the cushion unit 110 may be used. In this method, the gas is further injected into the cushion unit 110 to raise the pressure of the cushion unit 110 above the reference pressure to rupture the cushion unit 110. At this time, since the user may be impacted by the rupture of the cushion unit 110, the cushion unit ruptures while effectively dispersing the rupture shock of the cushion unit by opening at least two or more gas outlets 112 so that the user is not impacted. It is preferable to use a combination of methods. Alternatively, a method of rupturing the cushion unit 110 by opening at least two or more gas outlets 112 may be used. In this method, by quickly discharging the gas injected into the cushion unit 110 by using at least two gas outlets 112 installed, it is possible to effectively distribute the pressure caused by the collision with the user. As described above, the method may be used together with a method of rupturing the cushion unit 110 by further injecting gas into the cushion unit 110. As another method, a method of rupturing the cushion unit 110 using a cutout pre-installed in the cushion unit 110 may also be used. In this method, the cutout is prepared in advance in the cushion unit 110, and when the pressure value detected by the pressure sensor 132 becomes more than a predetermined pressure value, by cutting off the cutout in the cushion rupture unit 134, By discharging the gas injected into the unit 110 very quickly and effectively, the pressure caused by the collision with the user is effectively distributed. The present method may also be used with a method of rupturing the cushion unit 110 by allowing gas to be injected into the cushion unit 110.
도 2는 본 발명의 일 실시예에 따른 다층구조를 갖는 에어백의 제어부(130) 동작을 도시한 흐름도이다. 도 2에 도시된 바와 같이, 본 발명의 일 실시예에 따른 에어백의 제어부(130)는, 충돌 감지로 인한 에어백을 폭발시키는 단계(S210), 최외각 쿠션부 내의 압력이 기준치 이상인지 판단하는 단계(S220), 최외각 쿠션부가 파열될 때가지 가스를 추가 주입하는 단계(S230)를 포함한다.2 is a flowchart illustrating an operation of a controller 130 of an airbag having a multilayer structure according to an exemplary embodiment of the present invention. As shown in Figure 2, the control unit 130 of the airbag according to an embodiment of the present invention, the step of exploding the airbag due to the collision detection (S210), determining whether the pressure in the outermost cushion portion is greater than the reference value (S220), and additionally injecting gas until the outermost cushion portion is ruptured (S230).
단계 S210은, 처음 충돌 감지로 인한 에어백을 폭발시키는 역할을 한다. 이 경우, 제어부(130)의 신호에 따라, 가스공급부(120)의 가스발생부(122)는 가스 발생제를 연소시켜 가스를 급격하게 발생시키고, 상기 가스발생부(122)에 의해 발생된 가스는 적어도 하나 이상의 가스주입부(124)에 의해 각 쿠션부에 공급된다.Step S210 serves to explode the airbag due to the first collision detection. In this case, according to the signal of the controller 130, the gas generator 122 of the gas supply unit 120 burns the gas generating agent to generate a gas rapidly, and the gas generated by the gas generator 122 Is supplied to each cushion portion by at least one gas injection portion 124.
단계 S220은, 최외각 쿠션부 내의 압력이 기준치 이상인지 판단하는 역할을 한다. 최외각 쿠션부란, 현재 파열되지 않고 일정 압력을 유지하고 있는 가장 바깥쪽의 쿠션부를 의미하며, 압력 감지 센서(132)에 감지된 압력이 미리 설정된 값 이상으로 가해지는 경우, 에어백 사용자에게 충격을 줄 수 있는 과도한 압력이 가해짐을 의미하므로 이를 감지하여 최외각 쿠션부(110)를 파열시킬 것인지 여부를 판단한다. 이때 쿠션부 내의 압력이 기준치 미만인 경우, 사용자 보호를 위한 적정 압력이 유지되는 상태로 볼 수 있으므로 쿠션부를 파열시키지 않고, 일정 압력을 유지시키게 된다.Step S220 serves to determine whether the pressure in the outermost cushion portion is greater than or equal to the reference value. The outermost cushion portion means the outermost cushion portion which is not currently ruptured and maintains a constant pressure. When the pressure sensed by the pressure sensor 132 is applied above a preset value, the airbag user is shocked. Since excessive pressure may be applied, it is determined whether or not to rupture the outermost cushion unit 110 by sensing it. At this time, if the pressure in the cushion portion is less than the reference value, it can be seen that the appropriate pressure for the user protection is maintained so that the constant pressure is maintained without rupturing the cushion portion.
단계 S230은, 상기 단계 S220에서의 판단 결과, 압력이 기준치 이상으로 판단되는 경우, 최외각 쿠션부를 파열시키는 역할을 한다. 즉, 상기 단계 S220에서 압력 감지 센서(132)에 감지된 압력 값이 미리 지정된 압력 값 이상이 되는 경우, 쿠션파열부(134)가 최외각 쿠션부(110)를 파열시킴으로써 사용자가 받는 과도한 압력 및 충격을 줄여줄 수 있게 된다. 최외각 쿠션부를 파열시키는 방식으로는, 도 1과 관련하여 앞서 설명한 바와 같이, 쿠션파열부(134)가 쿠션부(110)에 가스를 더 주입되도록 함으로써 쿠션부(110)를 파열시키는 방식, 적어도 두 개 이상의 가스분출구(112)를 개방시키는 것에 의하여 쿠션부(110)를 파열시키는 방식, 쿠션부(110)에 미리 설치된 절개부를 이용하여 쿠션부(110)를 파열시키는 방식, 및 상기 방식들을 조합한 방식이 사용될 수 있다.Step S230 serves to rupture the outermost cushion unit when the pressure is determined to be greater than or equal to the reference value as a result of the determination in step S220. That is, when the pressure value sensed by the pressure sensor 132 in step S220 is greater than or equal to a predetermined pressure value, the cushion rupture unit 134 ruptures the outermost cushion unit 110 and excessive pressure received by the user. It can reduce the impact. As the method of rupturing the outermost cushion portion, as described above with reference to FIG. 1, the cushion rupture portion 134 ruptures the cushion portion 110 by causing gas to be injected into the cushion portion 110, at least. A method of rupturing the cushion unit 110 by opening two or more gas outlets 112, a method of rupturing the cushion unit 110 using a cutout pre-installed in the cushion unit 110, and a combination of the above methods. One way may be used.
이상 설명한 본 발명은 본 발명이 속한 기술분야에서 통상의 지식을 가진 자에 의하여 다양한 변형이나 응용이 가능하며, 본 발명에 따른 기술적 사상의 범위는 아래의 특허청구범위에 의하여 정해져야 할 것이다.The present invention described above may be variously modified or applied by those skilled in the art, and the scope of the technical idea according to the present invention should be defined by the following claims.
Claims (7)
- (1) 각각 서로 다른 압력을 견딜 수 있도록 설정된 적어도 두 개 이상의 쿠션부;(1) at least two cushions each configured to withstand different pressures;(2) 상기 적어도 두 개 이상의 쿠션부에 가스를 공급하는 가스공급부; 및(2) a gas supply unit supplying gas to the at least two cushion units; And(3) 상기 각 쿠션부에 가해지는 압력을 감지하여 미리 지정된 조건에 따라 상기 각 쿠션부를 파열시키는 제어부를 포함하며,(3) a control unit which senses the pressure applied to each of the cushion units and ruptures each of the cushion units according to a predetermined condition,상기 제어부는,The control unit,상기 각 쿠션부에 가해지는 압력을 감지하는 적어도 하나 이상의 압력 감지 센서; 및At least one pressure sensor for sensing pressure applied to each of the cushion units; And상기 압력 감지 센서에서 미리 지정된 값 이상의 압력이 감지될 경우, 해당 쿠션부를 파열시키는 쿠션파열부Cushion rupture unit for rupturing the corresponding cushion unit when a pressure of more than a predetermined value is detected by the pressure sensor를 포함하는 것을 특징으로 하는 다층 구조를 갖는 에어백.Air bag having a multi-layer structure, characterized in that it comprises a.
- 제1항에 있어서, 상기 가스공급부는,According to claim 1, The gas supply unit,a. 가스 발생제를 연소시킴에 따라 가스를 급격하게 발생시키는 가스발생부; 및a. A gas generator for rapidly generating a gas as the gas generator is burned; Andb. 상기 가스발생부에 의해 발생된 가스를 각 쿠션부에 공급하는 적어도 하나 이상의 가스주입부b. At least one gas injection unit for supplying gas generated by the gas generator to each cushion unit를 포함하는 것을 특징으로 하는 다층 구조를 갖는 에어백.Air bag having a multi-layer structure, characterized in that it comprises a.
- 제1항에 있어서,The method of claim 1,상기 쿠션부는, 파열이 쉽도록 구성된 적어도 두 개 이상의 가스분출부를 포함하는 것을 특징으로 하는 다층 구조를 갖는 에어백.The cushion part, the air bag having a multi-layer structure, characterized in that it comprises at least two or more gas ejection portion configured to facilitate bursting.
- 제1항에 있어서,The method of claim 1,상기 쿠션파열부는, 가스를 더 주입시킴으로써 상기 쿠션부를 파열시키는 것을 특징으로 하는 다층 구조를 갖는 에어백.And the cushion rupture portion ruptures the cushion portion by further injecting gas.
- 제1항에 있어서,The method of claim 1,상기 쿠션파열부는, 상기 적어도 두 개 이상의 가스분출구를 개방시키는 것에 의해 상기 쿠션부를 파열시키는 것을 특징으로 하는 다층 구조를 갖는 에어백.And the cushion rupture unit ruptures the cushion unit by opening the at least two gas ejection openings.
- 제1항에 있어서,The method of claim 1,상기 쿠션파열부는, 상기 쿠션부에 미리 설치된 절개부를 절개시키는 것에 의해 상기 쿠션부를 파열시키는 것을 특징으로 하는 다층 구조를 갖는 에어백.And the cushion rupture portion ruptures the cushion portion by cutting a cutout portion pre-installed in the cushion portion.
- 제1항에 있어서,The method of claim 1,상기 제어부는, 상기 적어도 두 개 이상의 쿠션부를 외측부터 차례대로 파열시키도록 조건이 설정되는 것을 특징으로 하는 다층 구조를 갖는 에어백.The control unit, the airbag having a multi-layer structure, characterized in that the conditions are set to rupture the at least two or more cushions in order from the outside.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2008-0066195 | 2008-07-08 | ||
| KR1020080066195A KR100894538B1 (en) | 2008-07-08 | 2008-07-08 | The air-bag with multi-layer structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2010005240A2 true WO2010005240A2 (en) | 2010-01-14 |
| WO2010005240A3 WO2010005240A3 (en) | 2010-04-29 |
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ID=40758056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2009/003741 WO2010005240A2 (en) | 2008-07-08 | 2009-07-08 | Airbag having a multilayer structure |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100894538B1 (en) |
| WO (1) | WO2010005240A2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101552113B1 (en) | 2009-09-07 | 2015-09-10 | 현대모비스 주식회사 | curtain air bag |
| KR102334416B1 (en) * | 2021-08-23 | 2021-12-02 | 주식회사 스마트에어챔버 | Impact Absorbing Apparatus with 2 Step Time Lag Punching and Valve for Vehicle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980027725U (en) * | 1996-11-19 | 1998-08-05 | 이동대 | Multistage Inflating Airbag with Diaphragm |
| KR100219199B1 (en) * | 1997-08-19 | 1999-09-01 | 오상수 | Multistage expansion air bag |
| KR100394511B1 (en) * | 1995-08-26 | 2003-11-28 | 이원인 | Air cushion apparatus for absorbing shock in vehicle |
| KR100422536B1 (en) * | 2001-04-18 | 2004-03-12 | 현대자동차주식회사 | An automotive multi expansion air bag |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980060967A (en) * | 1996-12-31 | 1998-10-07 | 박병재 | Double air bag |
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2008
- 2008-07-08 KR KR1020080066195A patent/KR100894538B1/en active IP Right Grant
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2009
- 2009-07-08 WO PCT/KR2009/003741 patent/WO2010005240A2/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100394511B1 (en) * | 1995-08-26 | 2003-11-28 | 이원인 | Air cushion apparatus for absorbing shock in vehicle |
| KR19980027725U (en) * | 1996-11-19 | 1998-08-05 | 이동대 | Multistage Inflating Airbag with Diaphragm |
| KR100219199B1 (en) * | 1997-08-19 | 1999-09-01 | 오상수 | Multistage expansion air bag |
| KR100422536B1 (en) * | 2001-04-18 | 2004-03-12 | 현대자동차주식회사 | An automotive multi expansion air bag |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010005240A3 (en) | 2010-04-29 |
| KR100894538B1 (en) | 2009-04-24 |
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