CN220207082U - Measuring device for airbag explosion impact - Google Patents
Measuring device for airbag explosion impact Download PDFInfo
- Publication number
- CN220207082U CN220207082U CN202321828744.3U CN202321828744U CN220207082U CN 220207082 U CN220207082 U CN 220207082U CN 202321828744 U CN202321828744 U CN 202321828744U CN 220207082 U CN220207082 U CN 220207082U
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- acceleration sensor
- airbag
- windshield
- air bag
- explosion
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- 238000004880 explosion Methods 0.000 title claims abstract description 17
- 230000001133 acceleration Effects 0.000 claims abstract description 63
- 238000005259 measurement Methods 0.000 claims abstract description 8
- 230000006835 compression Effects 0.000 claims abstract description 5
- 238000007906 compression Methods 0.000 claims abstract description 5
- 239000011159 matrix material Substances 0.000 claims description 6
- 238000004088 simulation Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
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Abstract
The utility model discloses a measuring device for airbag explosion impact, and belongs to the technical field of automobile collision safety performance. Comprising the following steps: a front passenger windshield, an automobile instrument panel, an airbag explosion assembly and a measuring assembly; the automobile instrument panel is arranged below the front passenger windshield; the automobile instrument panel is internally provided with a containing cavity; the air bag explosion component is arranged in the accommodating cavity; the airbag ignition assembly includes: the device comprises a shell, a gas generator arranged in the shell, an air bag connected with the gas generator and a compression ring used for fixing the bottom of the air bag on the shell; the measurement assembly is mounted in a predetermined arrangement at a predetermined location on the co-pilot windshield. According to the utility model, the acceleration sensor is stuck on the front windshield of the front windshield, so that the impact force applied to the front windshield of the front windshield during the explosion and deployment of the air bag is measured; compared with the prior art, the utility model is based on real automobile simulation measurement, and the measured error is smaller.
Description
Technical Field
The utility model belongs to the technical field of automobile collision safety performance, and particularly relates to a measuring device for airbag explosion impact.
Background
In an automobile collision test, after the gas generator is ignited, gas is generated, an air bag is inflated, and the air bag is unfolded to protect drivers and passengers. The airbag in the front side of the passenger side is expanded and then collides with the front windshield, the windshield is subjected to a certain impact, and if the impact force is large, the windshield is damaged, fragments fly out, and a certain danger is brought to drivers and passengers. Therefore, a study of the stress distribution of the windshield at the time of airbag deployment is necessary. This is because the deployment state of the airbag is designed by obtaining the stress distribution of the windshield, and the impact force of the windshield is reduced.
In the testing device in the prior art, the test die carrier is used for igniting the air bags to simulate the collision between the automobile and the air bags, the test die carrier is different from the automobile, and the obtained stress distribution data has large error.
Disclosure of Invention
The utility model aims to: in order to solve the above problems, the present utility model provides a measurement device for airbag ignition impact.
The technical scheme is as follows: a measurement device for airbag ignition impact, comprising: the copilot windshield, further comprising:
an automobile instrument panel arranged below the front passenger windshield; the automobile instrument panel is internally provided with a containing cavity;
the air bag explosion component is arranged in the accommodating cavity; the airbag ignition assembly includes: the device comprises a shell, a gas generator arranged in the shell, an air bag connected with the gas generator and a compression ring used for fixing the bottom of the air bag on the shell;
and the measuring assembly is arranged at a preset position of the front passenger windshield in a preset arrangement mode.
In a further embodiment, the measurement assembly comprises: the system comprises a first acceleration sensor and a plurality of groups of second acceleration sensors which are arranged by taking the first acceleration sensor as a reference;
the first acceleration sensor and the second acceleration sensor are arranged in an n multiplied by n matrix; the first acceleration sensor and the second acceleration sensor are the same in model number.
In a further embodiment, the first acceleration sensor and the second acceleration sensor are distributed in an n×n matrix row, and the following formula is satisfied:
wherein H is the width of the actual contact area between the airbag deployment and the front windshield of the co-driver, d is the interval between two adjacent second acceleration sensors or the interval between the adjacent first acceleration sensor and the adjacent second acceleration sensor, and l is the length of the first acceleration sensor or the second acceleration sensor.
In a further embodiment, an airbag output is provided on the dashboard of the automobile.
In a further embodiment, the hollow part is arranged on the pressing ring, and a plurality of groups of bolts arranged in an array are arranged at the bottom of the hollow part.
The beneficial effects are that: the acceleration sensor is stuck on the front passenger windshield, so that the impact force applied to the front passenger windshield when the airbag is in the explosion deployment state is measured, and the stress distribution condition of the front passenger windshield is measured; compared with the prior art, the utility model is based on real automobile simulation measurement, and the measured error is smaller.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a front view of the present utility model;
FIG. 3 is a side view of the present utility model;
FIG. 4 is a schematic diagram of a first acceleration sensor and a second acceleration sensor arrangement;
fig. 5 is a schematic structural view of the pressure ring.
Each labeled in fig. 1-5 is: a front passenger windshield 1, an automobile instrument panel 2, a shell 3, a gas generator 4, an air bag 5, a compression ring 6, bolts 61 and a measuring assembly 7.
Detailed Description
Example 1
As shown in fig. 1 to 5, the present embodiment provides a measuring device for airbag ignition impact, which measures the impact force of a co-driver's airbag 5 on a windshield after inflation and deployment based on a real collision environment; comprising the following steps: a front passenger windshield 1, an automobile instrument panel 2, an airbag squib assembly, and a measurement assembly 7.
Wherein the dashboard 2 is located below the front passenger windshield 1. The inside of the automobile instrument panel 2 is provided with a housing cavity. The airbag explosion component is arranged in the accommodating cavity. The airbag 5 of a common co-driver is installed inside the instrument panel 2 of the automobile. The automobile instrument panel 2 is provided with an airbag output end, so that when the airbag 5 is inflated and deployed, the airbag comes out of the airbag output end to protect a driver and passengers.
The airbag ignition assembly includes: a housing 3, a gas generator 4, an air bag 5 and a pressure ring 6. The housing 3 is fixed in the receiving chamber. The gas generator 4 is mounted within the housing 3. The airbag 5 is connected to the gas generator 4, and the gas generator 4 is operated to inflate the airbag 5. As shown in fig. 5, the pressure ring 6 is provided with a hollow portion, the hollow portion is annular, and the bottom of the hollow portion is provided with a plurality of groups of bolts 61 arranged in an array. When the compression ring 6 is used, the bottom of the air bag 5 passes through the hollowed-out part to be connected with the gas generator 4; the bolts 61 are inserted into mounting holes arranged on the shell 3 and fixed by nuts; and the bottom of the air bag 5 is fixed on the shell 3.
The measuring assemblies 7 are mounted in a predetermined arrangement at predetermined positions on the co-pilot windscreen 1. Specifically: the measuring assembly 7 comprises: the system comprises a first acceleration sensor and a plurality of groups of second acceleration sensors which are arranged by taking the first acceleration sensor as a reference. The first acceleration sensor and the plurality of groups of second acceleration sensors are in communication connection with data acquisition equipment, and the data acquisition equipment is used for acquiring acceleration g value data. The first acceleration sensor and the second acceleration sensor are arranged in an n multiplied by n matrix; the first acceleration sensor is the same as the second acceleration sensor in model number. The model numbers of the first acceleration sensor and the plurality of groups of second acceleration sensors are 64C-2000.
As shown in fig. 4, the first acceleration sensor and the second acceleration sensor are arranged in an n×n matrix, and satisfy the following formulas:
wherein H is the width of the actual contact area between the airbag deployment and the front windshield of the co-driver, d is the interval between two adjacent second acceleration sensors or the interval between the adjacent first acceleration sensor and the adjacent second acceleration sensor, and l is the length of the first acceleration sensor or the second acceleration sensor. The distance between two adjacent second acceleration sensors is the same as the distance between the adjacent first acceleration sensor and the adjacent second acceleration sensor.
The number of the speed sensors attached to the front windshield glass 1 is 9, and the attaching modes are 3 rows (horizontal) and 3 columns (vertical). The 2 nd row and the 3 rd row are the positions which are firstly contacted with the windshield when the airbag 5 is in explosion and unfolding, the sensor (namely the first acceleration sensor) is used as a starting point to be horizontally and vertically stuck, the left side is the first row, the right side is the third row, and the rest sensors (namely the second acceleration sensor) are stuck in an extending way left and right and upwards.
When the airbag 5 is in explosion and deployment, the front windshield can be impacted by a certain force, and the front windshield is stuck on the front windshield through the acceleration sensor, so that the stress distribution condition of the front windshield is measured, and the method comprises the following steps:
step 1: verifying contact area between airbag 5 and front windshield during point explosion deployment
Contact area confirmation: a ruler sticker with scales is stuck on the outer side of a windshield corresponding to the expansion of the PAB air bag 5 in advance, and the contact area of the air bag 5 and the front passenger windshield 1 is confirmed by recording the video of the whole test process of the expansion of the air bag 5 through a camera, so that the sticking position distribution condition of an acceleration sensor is obtained by the actual contact area;
step 2: the acceleration sensors are stuck on the front windshield glass 1 of the assistant driver, 9 acceleration sensors are distributed in 3 rows (horizontal) and 3 columns (vertical);
step 3: firstly, sticking the 2 nd row, wherein the 3 rd row firstly contacts with the windshield, and is stuck with the other two sensors preferentially;
step 4: sticking the 3 sensors in the 1 st row by taking the 2 nd row as a datum line;
step 5: and finally, pasting 3 sensors in the 3 rd row by taking the 2 nd row as a datum line.
The arrangement positions of the 9 acceleration sensors are evenly distributed and stuck sensors by the actual contact area of the front windshield and the deployment of the air bags 5.
The working principle is as follows:
the gas generator 4 generates gas after being exploded, the airbag 5 is inflated, the airbag 5 is unfolded and then impacts the front windshield, an acceleration sensor is stuck on the front windshield, and acceleration g value data are acquired through the data acquisition equipment, so that the stress distribution condition of the front windshield is measured. The measured force value distribution is used for reference of a designer, so that the impact force on the windshield is reduced when the air bag is unfolded for designing, and the risk of damage to the windshield is reduced.
Claims (5)
1. A measurement device for airbag ignition impact, comprising: copilot windshield, its characterized in that still includes:
an automobile instrument panel arranged below the front passenger windshield; the automobile instrument panel is internally provided with a containing cavity;
the air bag explosion component is arranged in the accommodating cavity; the airbag ignition assembly includes: the device comprises a shell, a gas generator arranged in the shell, an air bag connected with the gas generator and a compression ring used for fixing the bottom of the air bag on the shell;
and the measuring assembly is arranged at a preset position of the front passenger windshield in a preset arrangement mode.
2. The airbag module assembly of claim 1, wherein the measuring assembly comprises:
the system comprises a first acceleration sensor and a plurality of groups of second acceleration sensors which are arranged by taking the first acceleration sensor as a reference;
the first acceleration sensor and the second acceleration sensor are arranged in an n multiplied by n matrix; the first acceleration sensor and the second acceleration sensor are the same in model number.
3. The airbag explosion impact measuring device according to claim 2, wherein the first acceleration sensor and the second acceleration sensor are arranged in an n x n matrix row and satisfy the following formula:
wherein H is the width of the actual contact area between the airbag deployment and the front windshield of the co-driver, d is the interval between two adjacent second acceleration sensors or the interval between the adjacent first acceleration sensor and the adjacent second acceleration sensor, and l is the length of the first acceleration sensor or the second acceleration sensor.
4. The airbag explosion impact measuring device according to claim 1, wherein an airbag output end is arranged on the automobile instrument panel.
5. The device for measuring the explosion impact of an air bag according to claim 1, wherein the hollow part is arranged on the pressing ring, and a plurality of groups of bolts arranged in an array are arranged at the bottom of the hollow part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321828744.3U CN220207082U (en) | 2023-07-12 | 2023-07-12 | Measuring device for airbag explosion impact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321828744.3U CN220207082U (en) | 2023-07-12 | 2023-07-12 | Measuring device for airbag explosion impact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220207082U true CN220207082U (en) | 2023-12-19 |
Family
ID=89139304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321828744.3U Active CN220207082U (en) | 2023-07-12 | 2023-07-12 | Measuring device for airbag explosion impact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220207082U (en) |
-
2023
- 2023-07-12 CN CN202321828744.3U patent/CN220207082U/en active Active
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