CN112918416A - Headrest airbag system and headrest airbag - Google Patents
Headrest airbag system and headrest airbag Download PDFInfo
- Publication number
- CN112918416A CN112918416A CN201911235931.9A CN201911235931A CN112918416A CN 112918416 A CN112918416 A CN 112918416A CN 201911235931 A CN201911235931 A CN 201911235931A CN 112918416 A CN112918416 A CN 112918416A
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- China
- Prior art keywords
- headrest
- airbag
- headrest airbag
- head
- gas generator
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000009434 installation Methods 0.000 claims abstract description 5
- 208000027418 Wounds and injury Diseases 0.000 abstract description 11
- 230000006378 damage Effects 0.000 abstract description 11
- 208000014674 injury Diseases 0.000 abstract description 11
- 230000003139 buffering effect Effects 0.000 abstract description 5
- 210000004556 brain Anatomy 0.000 description 4
- 210000003625 skull Anatomy 0.000 description 3
- 206010059491 Intracranial haematoma Diseases 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 206010010071 Coma Diseases 0.000 description 1
- 241001125929 Trisopterus luscus Species 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 210000000133 brain stem Anatomy 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000003657 middle cerebral artery Anatomy 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 230000007958 sleep Effects 0.000 description 1
Images
Classifications
-
- 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
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
- B60R21/0136—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to actual contact with an obstacle, e.g. to vehicle deformation, bumper displacement or bumper velocity relative to the vehicle
-
- 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
- B60R21/207—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats
-
- 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
- B60R21/207—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats
- B60R2021/2074—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats in head rests
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
- Air Bags (AREA)
Abstract
A headrest airbag system and a headrest airbag, the headrest airbag system comprising: the headrest airbag, the gas generator, the electronic control device, the headrest body and the sensor; the headrest airbag is arranged in the headrest body; the electronic control device is electrically connected with the sensor; when the sensor detects that the vehicle body collides, the electronic control device starts the gas generator to inflate the headrest airbag, so as to open the headrest airbag, the headrest airbag is converted from the installation state to the working state, and the unfolding shape of the headrest airbag in the working state can effectively wrap the left side part and the right side part of the head of a passenger, so that when the left side part and the right side part of the head of the passenger and other objects, particularly hard objects, form secondary collision, for example, secondary collision is generated between the heads of a plurality of passengers, effective buffering is formed, the injury on the side parts of the heads of the passengers is avoided or reduced, and the problem that the traditional airbag is insufficient in personal safety protection of the passengers can be solved.
Description
Technical Field
The invention relates to the field of traffic safety, in particular to a headrest airbag system. The invention also relates to a headrest airbag.
Background
In modern life, with the increasing popularization of automobiles, the running speed of automobiles is continuously increased, and under the situation, the protection of personal safety of drivers and passengers is particularly important.
Automobile airbags and safety belts are typical passive safety protection devices. When the vehicle collides with an obstacle, it is called a primary collision, and when the occupant collides with an interior member, it is called a secondary collision. As an auxiliary safety protection device, when a primary collision occurs to an automobile, an air cushion filled with gas is rapidly opened by an air bag after the primary collision and before the secondary collision, so that a passenger can 'pout on' the air cushion when moving due to inertia, and the impact force can be uniformly distributed on the head and the chest, thereby preventing the direct collision between the flesh of the fragile passenger and the automobile body and greatly reducing the possibility of injury. The utility of automotive airbags in combination with seat belts to protect occupants is becoming more and more certain.
Known in the art are a main-drive airbag, a sub-drive airbag, a side-airbag, and a knee airbag. However, there are still many weak protection portions when the automobile is collided, and for example, in the case of many members, there is a situation where the passengers collide with each other due to the collision of the automobile, and there is a lack of effective safety protection at present.
Disclosure of Invention
The invention provides a headrest airbag system, which aims to solve the problem of insufficient safety protection for passengers in the prior art.
The invention also provides a headrest airbag.
The embodiment of the present application provides a headrest airbag system, includes: the headrest airbag, the gas generator, the electronic control device, the headrest body and the sensor; the headrest airbag is arranged in the headrest body; the electronic control device is electrically connected with the sensor; when the sensor detects that the vehicle body collides, the electronic control device starts the gas generator to inflate the headrest air bag, so that the headrest air bag is opened, the headrest air bag is converted from a mounting state to a working state, and the unfolding shape of the headrest air bag in the working state can effectively wrap the left side part and the right side part of the head of a passenger.
Optionally, the deployed shape of the headrest airbag in the working state can also form an effective package on the top of the head of the passenger.
Optionally, the deployed shape of the headrest airbag in the working state can also form an effective package on the back of the head of the passenger.
Optionally, the headrest airbag system further comprises a housing; the headrest air bag and the gas generator are arranged in the shell, wherein the headrest air bag is fixed on the inner side of the shell close to the opening of the shell; the headrest airbag system further comprises a gas generator support, the gas generator is fixed on the gas generator support, and the gas generator support is fixed at the bottom of the inner side of the shell.
The embodiment of the invention also provides a headrest air bag which is arranged in the headrest body; when the preset condition is met, the headrest airbag is opened and is converted from the installation state to the working state, and the unfolding shape of the headrest airbag in the working state can effectively wrap the left side part and the right side part of the head of the passenger.
Optionally, the deployed shape of the headrest airbag in the working state can also form an effective package on the top of the head of the passenger.
Optionally, the deployed shape of the headrest airbag in the working state can also form an effective package on the back of the head of the passenger.
Compared with the prior art, the invention has the following advantages:
the present invention provides a headrest airbag system, including: the headrest airbag, the gas generator, the electronic control device, the headrest body and the sensor; the headrest airbag is arranged in the headrest body; the electronic control device is electrically connected with the sensor; when the sensor detects that the vehicle body collides, the electronic control device starts the gas generator to inflate the headrest airbag, so as to open the headrest airbag, the headrest airbag is converted from the installation state to the working state, and the unfolding shape of the headrest airbag in the working state can effectively wrap the left side part and the right side part of the head of a passenger, so that when the left side part and the right side part of the head of the passenger and other objects, particularly hard objects, form secondary collision, for example, secondary collision is generated between the heads of a plurality of passengers, effective buffering is formed, the injury on the side parts of the heads of the passengers is avoided or reduced, and the problem that the traditional airbag is insufficient in personal safety protection of the passengers can be solved.
Drawings
Fig. 1 is a schematic view of an operational state deployment shape of a headrest airbag in a headrest airbag system according to a first embodiment of the present application;
FIG. 2 is a schematic view of a gas generator in a headrest airbag system according to a first embodiment of the present application;
FIG. 3 is a schematic view of a housing in a headrest airbag system according to a first embodiment of the present application;
fig. 4 is a schematic view of a housing of a headrest airbag system according to a first embodiment of the present application mounted to a headrest body;
fig. 5 is a schematic view of a gas generator bracket in a headrest airbag system according to a first embodiment of the present application.
A headrest airbag 1, a gas generator 2, a housing 3, a headrest body 4, and a gas generator bracket 5.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of implementation in many different ways than those herein set forth and of similar import by those skilled in the art without departing from the spirit of this application and is therefore not limited to the specific implementations disclosed below.
A first embodiment of the present application provides a headrest airbag system, and fig. 1 is a schematic view of an operational state deployment shape of a headrest airbag provided in the first embodiment of the present application. Fig. 2 is a schematic view of a gas generator in a headrest airbag system according to a first embodiment of the present application. Fig. 4 is a schematic view of a housing of a headrest airbag system according to a first embodiment of the present application mounted to a headrest body.
The headrest airbag system provided in the present embodiment includes a headrest airbag 1, a gas generator 2, an electronic control device (not shown), a sensor (not shown), and a headrest body 4; the above components will be described below.
The headrest airbag 1 is an airbag that is disposed at a headrest position of a car seat.
An airbag is an airbag that can protect the life of a passenger when a danger occurs, and has a space in which compressed gas can be charged, and an air inlet through which gas can be rapidly charged into the airbag is provided between the airbag and an external space, so that the airbag is rapidly deployed. The safety airbag has a setting state and a working state according to different states of the safety airbag.
The arrangement state refers to a state that the air bag is arranged at the air bag arrangement position after being compressed under the condition that the automobile is in normal working; in this state, the inner space of the airbag is not yet inflated and is folded and compressed in a manner adapted to the installation position space; the airbag may be classified into different types according to the position where the airbag is disposed, and the headrest airbag in this embodiment is the airbag disposed at the position of the headrest.
The working state refers to the state that when the automobile is collided and the like and meets the working conditions of the safety air bag, a large amount of gas is rapidly filled into the safety air bag from the air inlet, and the safety air bag is rapidly unfolded after being inflated, so that the safety air bag is in the inflated state capable of protecting passengers. For different types of airbags, the airbags can be unfolded into different shapes under the working state according to different protection requirements. The specific unfolding shape needs to be studied in detail on the protection position of the specific safety air bag, and different unfolding shapes are adopted according to the protection requirement.
In the present embodiment, the headrest airbag 1 is used for protecting the head of an occupant, and the specific collision form to be protected is mainly a secondary collision occurring in the vehicle after a primary collision of the vehicle body occurs, for example, a head collision between occupants seated side by side, or a head side collision of another hard object; for this reason, in the present embodiment, a deployed shape as shown in fig. 1, that is, a shape similar to a helmet, is designed, which includes a left side air cushion, a right side air cushion, a top air cushion and a rear air cushion, and the deployed shape can form effective wrapping for the left, right, side, top and rear portions of the head of the occupant, and form reliable protection for the head; the face protection can be borne by airbags at other positions.
Of course, the above-described deployment shape is preferred, and in some cases, other simple deployment forms may be used, for example, the deployed airbag may not include the top cushion and the rear cushion, but only the left side cushion and the right side cushion, which may form an effective wrap around the left and right sides of the head of the occupant. The temples on the two sides of the head of the passenger are the weakest parts of the skull, and the middle cerebral artery is arranged below the temples, if the temples are impacted strongly in secondary collision, the blood vessels are broken and bleed greatly, intracranial hematoma is caused, and the person is in coma. Therefore, in the secondary collision, the effective protection of the left side and the right side of the head of the passenger is very important for protecting the personal safety of the passenger. In the secondary collision, the unfolding shape of the headrest airbag 1 can effectively wrap the left and right sides of the head of the passenger, so that when the left and right sides of the head of the passenger and other objects, particularly hard objects, form the secondary collision, for example, the heads of a plurality of passengers generate the secondary collision, effective buffering is formed, and the injury on the sides of the head of the passenger, particularly the temple, is avoided or reduced.
In some cases, the deployed headrest airbag 1 may include a rear cushion in addition to the left and right side cushions, which may also form an effective wrap around the rear of the head of the occupant. The back of the head of the occupant, particularly the back of the head and a part of the spine, are vulnerable to injury during a secondary collision. The back part of the brain has a respiratory and heartbeat center brain stem which is responsible for maintaining important physiological functions such as heartbeat, respiration, digestion, body temperature, sleep and the like, so that the back part of the brain is a 'life center', and the skull of the back part of the brain is relatively weak, and can cause fatal injuries such as intracranial hematoma and the like if the skull of the back part of the brain is strongly impacted in secondary collision. The backbone is the most fragile nerve center 'corridor' of the human body, and can be fatal once seriously damaged. Particularly, the fracture of the high cervical vertebra is easy to cause sudden stop of breathing and heartbeat. In the present embodiment, in the secondary collision, the deployed shape of the headrest airbag 1 can effectively wrap the rear portion of the head of the occupant, thereby avoiding or reducing the injury to the rear portion of the head of the occupant.
The gas generator 2 is mainly used for filling an inflating agent, and the inflating agent can be selected in various ways. After the vehicle body is collided for the first time, the inflating agent can instantly decompose a large amount of gas under the heating of the igniting agent ignited and detonated by the igniter of the electronic control device, the gas is filled into the headrest airbag 1 through the gas guide pipe, the headrest airbag 1 is unfolded, and the injury of passengers in the secondary collision is avoided. In the present embodiment, as shown in fig. 5, the headrest airbag system further includes a gas generator bracket 5; the gas generator 2 is used for filling with an inflator, and the gas generator holder 5 is used for fixing the gas generator 2.
The electronic control device (not shown) and the sensor (not shown) are connected with the electronic control device, the sensor is used for detecting the forward acceleration signal and the lateral acceleration signal of the automobile in time and sending the signals to the electronic control device, and the signals are calculated, analyzed, compared and judged by the electronic control device to prepare to send out instructions at any time. When the signal changes and exceeds a set threshold value, the electronic control device sends an ignition instruction, so that the igniter ignites and detonates the ignition agent to heat the inflation agent, the inflation agent is instantly decomposed into a large amount of gas, the gas is filled into the headrest airbag 1 through the gas guide tube, the headrest airbag 1 is unfolded, and the head of a passenger is prevented from being injured in secondary collision.
As shown in fig. 4, the headrest body 4 is a headrest mounted on a car seat. The headrest airbag 1 and the gas generator 2 are installed in a headrest body 4, and in the optimized scheme, a shell 3 is arranged, as shown in figure 3, the shell 3 is a box body which is made of hard materials and is provided with an opening on one side, and the shell 3 is installed in the headrest body 4; the headrest airbag 1 is fixed on the inner side of the shell 3 close to the opening of the shell 3, so that the headrest airbag 1 is ejected from the opening of the shell during secondary collision, and the head safety of a passenger is protected.
Referring to fig. 1, 2, and 4, a headrest airbag system according to a first embodiment of the present invention includes a headrest airbag 1, a gas generator 2, a headrest body 4, an electronic control device (not shown), and a sensor (not shown). In the embodiment, the electronic control device is electrically connected with the sensor, the headrest airbag 1 is installed in the headrest body 4, and the gas generator 2 is connected with the headrest airbag 1 through the gas guide tube; when the sensor detects that the vehicle body collides, the electronic control device starts the gas generator 2 to inflate the headrest airbag 1, so that the headrest airbag 1 is opened, the headrest airbag 1 is converted into a working state from a placement state, and the unfolding shape of the headrest airbag 1 in the working state can effectively wrap the left side part and the right side part of the head of a passenger, so that when the left side part and the right side part of the head of the passenger and other objects, particularly hard objects, form secondary collision, for example, when secondary collision is generated among the heads of a plurality of passengers, effective buffering is formed, the injury on the side parts of the heads of the passengers is avoided or reduced, and the problem that the traditional airbag is insufficient in personal safety protection of the passengers can be solved.
A second embodiment of the invention provides a headrest airbag 1, the headrest airbag 1 being mounted in a headrest body 4; when the preset condition is met, the headrest airbag 1 is opened, the arrangement state is converted into the working state, the unfolding shape in the working state can effectively wrap the left side part and the right side part of the head of a passenger, so that when the left side part and the right side part of the head of the passenger and other objects, particularly hard objects, form secondary collision, for example, when secondary collision is generated among the heads of multiple passengers, effective buffering is formed, the injury on the side parts of the heads of the passengers is avoided or reduced, and the problem that the personal safety protection of the passengers by the traditional airbag is insufficient can be solved.
Based on the fact that the headrest airbag 1 in the headrest airbag system provided by the first embodiment is used as the headrest airbag in this embodiment, that is, the specific implementation structure of the headrest airbag 1 in this embodiment can refer to fig. 1 and the corresponding contents in the above embodiments, and details are not described here.
In order to better protect the top and the back of the head of the passenger, especially the vulnerable parts such as the back head and part of the spine, which are vulnerable to the secondary collision, the headrest airbag 1 in the embodiment includes a top air cushion and a back air cushion in addition to the left side air cushion and the right side air cushion, and this form can effectively wrap the top and the back of the head of the passenger, so that the injury of the top and the back of the head of the passenger in the secondary collision can be reduced.
Although the present application has been described with reference to the preferred embodiments, it is not intended to limit the present application, and those skilled in the art can make variations and modifications without departing from the spirit and scope of the present application, therefore, the scope of the present application should be determined by the claims that follow.
Claims (7)
1. A headrest airbag system, comprising: the headrest airbag, the gas generator, the electronic control device, the headrest body and the sensor;
the headrest airbag is arranged in the headrest body;
the electronic control device is electrically connected with the sensor;
when the sensor detects that the vehicle body collides, the electronic control device starts the gas generator to inflate the headrest air bag, so that the headrest air bag is opened, the headrest air bag is converted from a mounting state to a working state, and the unfolding shape of the headrest air bag in the working state can effectively wrap the left side part and the right side part of the head of a passenger.
2. The headrest airbag system according to claim 1, wherein the deployed shape of the headrest airbag in an operative condition is further effective to wrap a top portion of the head of the occupant.
3. The headrest airbag system according to claim 2, wherein the deployed shape of the headrest airbag in an operative condition is further configured to provide an effective wrap around the rear of the occupant's head.
4. The headrest airbag system according to claim 2 or 3, further comprising a housing; the headrest air bag and the gas generator are arranged in the shell, wherein the headrest air bag is fixed on the inner side of the shell close to the opening of the shell; the headrest airbag system further comprises a gas generator support, the gas generator is fixed on the gas generator support, and the gas generator support is fixed at the bottom of the inner side of the shell.
5. A headrest airbag, characterized in that the headrest airbag is mounted in a headrest body;
when the preset condition is met, the headrest airbag is opened and is converted from the installation state to the working state, and the unfolding shape of the headrest airbag in the working state can effectively wrap the left side part and the right side part of the head of the passenger.
6. The headrest airbag of claim 5, wherein the deployed shape of the headrest airbag in an operational state is further effective to wrap the top of the head of an occupant.
7. The headrest airbag of claim 6, wherein the deployed shape of the headrest airbag in an operative condition is further effective to wrap a rear portion of the head of the occupant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911235931.9A CN112918416A (en) | 2019-12-05 | 2019-12-05 | Headrest airbag system and headrest airbag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911235931.9A CN112918416A (en) | 2019-12-05 | 2019-12-05 | Headrest airbag system and headrest airbag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112918416A true CN112918416A (en) | 2021-06-08 |
Family
ID=76161758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911235931.9A Withdrawn CN112918416A (en) | 2019-12-05 | 2019-12-05 | Headrest airbag system and headrest airbag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112918416A (en) |
-
2019
- 2019-12-05 CN CN201911235931.9A patent/CN112918416A/en not_active Withdrawn
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210608 |