CN208947266U - A kind of safe automobile air bag equipped with guiding device - Google Patents
A kind of safe automobile air bag equipped with guiding device Download PDFInfo
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- CN208947266U CN208947266U CN201821392429.XU CN201821392429U CN208947266U CN 208947266 U CN208947266 U CN 208947266U CN 201821392429 U CN201821392429 U CN 201821392429U CN 208947266 U CN208947266 U CN 208947266U
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- airbag
- guiding device
- drawstring
- heat insulation
- air bag
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Abstract
The utility model relates to automotive Airbag Technology fields, specifically a kind of safe automobile air bag equipped with guiding device, including gas generator, airbag, guiding device and shell, guiding device is fixed on the inside of airbag, and be located at airbag air inlet, guiding device includes heat insulation bottom board and top cover.Compared with the existing technology, metal foil particle, the energy of residue and temperature can be obviously reduced in the utility model, avoid direct impact of the high-temperature gas to airbag inner surface, buffer the impact force to airbag.By tearing the setting of U-type groove in advance, the dynamic change of leading port size is controlled, the long-time for avoiding gas against the single position of airbag is impacted, and the heat shield that air guide port is nearby additionally arranged is eliminated, and has apparent cost advantage.Leading port is located at occupant side, and convenient for inflating to the airbag back lower place, airbag expansion is unfolded along between instrument board and Retired old person head, has very favorable protecting effect to Retired old person.
Description
Technical field
The utility model relates to automotive Airbag Technology field, specifically a kind of automobile peace equipped with guiding device
Full air bag.
Background technique
Safe automobile air bag is usually made of inflatable airbag, the holding components such as bracket and gas generator.For pair
Driving safety air bag, is typically mounted below fascia.Gas when automobile such as collides at the emergencies, in air bag
Generator excites and to air bag inflator, after airbag breaks through instrument board, expansion is expanded between occupant and instrument board, protection is played and multiplies
The effect of member.
There are several gas outlets on gas generator side wall, gas outlet allows gas to enter airbag from gas generator.In order to anti-
Only moisture enters in gas generator from gas outlet, can be sealed with metal foil in gas generator side wall.Gas occurs
When the device quick-fried excitation of point, when pressure reaches certain value in gas generator, the metal foil for sealing is broken through by high pressure gas, more
Number metal foil particle enters in airbag with high temperature, high pressure gas, and metal foil particle is easily sticked to airbag inner surface and forms burning
Hole.
Meanwhile for firework type gas generator, high-temperature gas is directly entered airbag after gas generator discharge, easily
Airbag fabric is scalded, fabric performance is caused to decline, or even can lead to airbag rupture.To solve burner port and high-temperature gas to fabric
Damage, traditional solution is the increase air guide bag in airbag, and biggish heat shield is arranged in air guide bag gas outlet,
Decline to avoid fabric performance caused by due to the long-time impact of high-temperature gas and residue airbag fixed position.Therefore, it passes
System air guide bag higher cost.
In addition, in the air bag initial deployment stage, can be generated a large amount of for traditional air bag for copilot of no guiding device
Gas, airbag first inflation upwards and quickly propels towards occupant side cephalad direction, forms very big impact force.When 3 years old or 6
When off normal OOP state dummy breast or the head in year are close to instrument board, biggish impact force can neck to dummy and head make
At major injury excessively.Known solution is to use double-stage air generator progress single-stage point quick-fried or using the side such as special folding
Formula.But above-mentioned solution has significant limitations, double-stage air generator is at high cost, the impact to the small dummy that offs normal is improved
It acts on also limited.And special folding mode is extremely complex, manufacturing cost is very high.
Therefore, it is necessary to design a kind of safe automobile air bag equipped with guiding device, high-temperature gas and gas hair can be reduced
Damage of the raw device metal foil particle to airbag, while in airbag deployment, be conducive to the occupant for protecting undocked state, especially subtract
The injury of small Retired old person neck and head.
Summary of the invention
The purpose of the utility model is to overcome the deficiencies of the prior art and provide a kind of automotive safeties equipped with guiding device
Air bag can reduce the damage of high-temperature gas and gas generator metal foil particle to airbag, while in airbag deployment, favorably
In the occupant of protection undocked state, especially reduce the injury of Retired old person neck and head.
In order to achieve the above object, the utility model is a kind of safe automobile air bag equipped with guiding device, including gas
Generator, airbag, guiding device and shell, shell are mounted in instrument board, and gas generator is arranged at airbag air inlet,
Be characterized in that: guiding device is fixed on the inside of airbag, and is located at airbag air inlet, and guiding device includes heat insulation bottom board and top
Lid, heat insulation bottom board surface are provided with water conservancy diversion air inlet, and heat insulation bottom board is bonded with the inner surface of airbag, and top cover is covered on water conservancy diversion air inlet
Mouthful top, form leading port between the occupant side sideline of top cover and heat insulation bottom board, the side line of top cover and heat insulation bottom board
Auxiliary air guide port is formed between side.
It is directlyed adopt between the water conservancy diversion air inlet and airbag air inlet solid using stud again after stud is fixed or sutured
It is fixed.
The occupant side sideline both ends of the top cover are respectively equipped with a drawstring one, the rear end point of two sides of heat insulation bottom board
Not She You one group of fixed auricle and drawstring two, pre- tearing U-type groove, drawstring one and drawstring two are equipped between fixed auricle and drawstring two
It is fixed using sewing thread, fixed auricle is sewed and connected with airbag side panel or airbag front plate.
The length of the drawstring one is greater than the length of drawstring two.
The occupant side sideline both ends of the top cover are respectively equipped with a concave edge two, the rear end point of two sides of heat insulation bottom board
Not She You one group of fixed auricle and concave edge one, pre- tearing U-type groove, concave edge one and concave edge two are equipped between fixed auricle and concave edge one
It is fixed using sewing thread, fixed auricle is sewed and connected with airbag side panel or airbag front plate.
The length in the occupant side sideline is greater than the distance between two concave edges one.
The inside of the pre- tearing U-type groove is equipped with U-shaped reinforced sheet.
The occupant side sideline both ends of the top cover are respectively equipped with a drawstring one, and heat insulation bottom board is one piece construction, draw
Band one is fixed with heat insulation bottom board and airbag side panel or airbag front plate using sewing thread.
The distance between described drawstring one is greater than the distance between two sewing threads.
Compared with the prior art, the utility model designs pass through water conservancy diversion made of folding and suturing as one piece of fabric panel
Device, gas from gas generator venthole come out after, impact top cover first, top cover can barrier metal foil particle, generator
Residue and high-temperature gas, and change gas inflated direction, so that gas flows to airbag, gas from leading port and auxiliary air guide port
Become tortuous into the path of airbag, metal foil particle, the energy of residue and temperature can be obviously reduced, avoid high-temperature gas to gas
The direct impact of bag inner surface, buffers the impact force to airbag.By tearing the setting of U-type groove in advance, leading port size is controlled
Dynamic change, the long-time for avoiding gas against airbag single position impacts, eliminates air guide port and be nearby additionally arranged
Heat shield has apparent cost advantage.Leading port is located at occupant side, and convenient for inflating to the airbag back lower place, edge is unfolded in airbag
Be unfolded between instrument board and Retired old person head, have very favorable protecting effect to Retired old person.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the schematic diagram of guiding device fabric panel in the utility model embodiment 1.
Fig. 3 is the folding schematic diagram of guiding device fabric panel in the utility model embodiment 1.
Fig. 4 is the sewing schematic diagram of guiding device fabric panel in the utility model embodiment 1.
Fig. 5 is the schematic diagram of guiding device fabric panel in the utility model embodiment 2.
Fig. 6 is the folding schematic diagram of guiding device fabric panel in the utility model embodiment 2.
Fig. 7 is the sewing schematic diagram of guiding device fabric panel in the utility model embodiment 2.
Fig. 8 is the schematic diagram of guiding device fabric panel in the utility model embodiment 3.
Fig. 9 is the folding schematic diagram of guiding device fabric panel in the utility model embodiment 3.
Figure 10 is the sewing schematic diagram of guiding device fabric panel in the utility model embodiment 3.
Figure 11 is that occupant is in head close to the undocked state of instrument board, and the cross-sectional view of initial stage is unfolded in air bag inflator.
Figure 12 is that occupant is in head close to the undocked state of instrument board, and the front view of initial stage is unfolded in air bag inflator.
Figure 13 is that occupant is in head close to the undocked state of instrument board, the section view of airbag and occupant's head contact phase
Figure.
Figure 14 is that occupant is in head close to the undocked state of instrument board, the forward sight of airbag and occupant's head contact phase
Figure.
Figure 15 is that occupant is in head close to the undocked state of instrument board, and airbag is full of the cross-sectional view in stage.
Figure 16 is that occupant is in head close to the undocked state of instrument board, and airbag is full of the front view in stage.
Specific embodiment
The utility model is described further now in conjunction with attached drawing.
Embodiment 1, referring to Fig. 1 and Figure 11, the air bag equipped with guiding device of the utility model design is by a gas
Body generator 27, inflatable airbag 4, guiding device 5 and shell 28 form, and shell 28 is mounted in instrument board 2, and gas occurs
Device 27 is arranged at airbag air inlet 34, and airbag air inlet 34 can receive the gas of the generation of gas generator 27, gas generator
27 side walls are equipped with several ventholes 32, and 32 place cylindrical sidewall inner surface of venthole is sealed by metal foil.
Referring to Figure 11, guiding device 5 is fixed on the inside of airbag 4, and is located at airbag air inlet 34,
Guiding device 5 is folded by piece of fabric cut-parts, is sutured, and fabric panel is equipped with water conservancy diversion air inlet 12, water conservancy diversion
Air inlet 12 is overlapped with airbag air inlet 34, directlyed adopt between water conservancy diversion air inlet 12 and airbag air inlet 34 stud 29 it is fixed or
It is fixed using stud 29 again after suture.Water conservancy diversion air inlet 12, airbag air inlet 34 are used to receive gas along upward inflation direction
The gas of body generator 27, gas initially enter guiding device 5 and are imported in airbag 4 again.
Guiding device 5 includes heat insulation bottom board 23 and top cover 13, and 23 surface of heat insulation bottom board is provided with water conservancy diversion air inlet 12, heat-insulated
Bottom plate 23 is bonded with the inner surface of airbag 4, and top cover 13 is covered on the top of water conservancy diversion air inlet 12, the occupant side sideline 14 of top cover 13
Leading port 9 is formed between heat insulation bottom board 23, is formed between the side line 11 of top cover 13 and the side 10 of heat insulation bottom board 23 auxiliary
Assistant director of a film or play's port 8.
Referring to fig. 2-4, guiding device 5 is folded by piece of fabric cut-parts, is sutured, 14 liang of the occupant side sideline of top cover 13
End is respectively equipped with a drawstring 1, and the rear end of 23 two sides 10 of heat insulation bottom board is respectively equipped with one group of fixed auricle 18 and drawstring
2 16, the length of drawstring 1 is greater than the length of drawstring 2 16.Pre- tearing U-type groove is equipped between fixed auricle 18 and drawstring 2 16
20, in 4 gas replenishment process of airbag, as the impact force that gas generates is stepped up, after impact force reaches certain value, U is torn in advance
The power that is hit of type groove 20 is gradually torn, and the length of drawstring 2 16 increases, and leading port 9 is made to increase and change air guide direction, drawstring
The relative position of 2 16 length control top cover 13 and the air guide direction of leading airbag.Speed and impact force when according to inflation,
The dynamic change of 2 16 length of drawstring, so that leading port size and direction dynamic regulation, it is single to airbag 4 solid to can avoid gas
Determine the long-time impact at position, and controls the unfoldable shape of airbag 4.
Referring to Fig. 3, folded fabric panel forms semiclosed region, and the front end of fabric panel is formed close to 1 side of windscreen
Closed area, top cover 13 are covered on the top of water conservancy diversion air inlet 12, avoid gas generator 27 generate high-temperature gas, residue and
Impact of the metal foil to 4 fabric of windscreen lateral airbag.
Referring to fig. 4, it the end part aligning of the end of drawstring 1 and drawstring 2 16 and is fixed using the suture of sewing thread 17, it is fixed
Auricle 18 is sewed and connected with airbag side panel 37 or airbag front plate 38, thus the relative position of fixed top cover 13.In tearing U in advance
The inside of type groove 20 is equipped with U-shaped reinforced sheet 24, and U-shaped reinforced sheet 24 is stitched together by suture with heat insulation bottom board 23, plays limit
The effect of the maximum tearing position of the pre- tearing U-type groove 20 of system.
By the suture of fabric panel, the rear end of fabric panel forms leading port 9 close to 3 side of occupant, dominate port 9 to
The two sides of occupant side air guide, fabric panel form two auxiliary air guide ports 8, and the auxiliary air guide port 8 of the right and left is portion gas
It is oriented to left and right sides.
Referring to Fig. 1, the gas that gas generator 27 generates comes out from water conservancy diversion air inlet 12, impacts top cover 13 upwards first,
Top cover 13 plays the role of barrier metal foil particle and generator residue, changes airflow direction, avoids high-temperature gas directly to gas
The impact and damage of bag 4, while avoiding high-temperature gas from flowing directly into upwards and inflating and cause to be unfavorable for offing normal at airbag top 7
The case where dummy protects.By the guide functions of top cover 13, portion gas flows in airbag 4 from auxiliary air guide port 8, plays shunting
With stablize air guide process.Then most gases flow out from leading port 9 and flow to airbag lower part 6, dominate the air guide direction of port 9
Against heat insulation bottom board 23, gas is along 2 surface flow of instrument board.The road strength that guiding device 5 makes gas enter airbag 4 becomes bent
Folding, can be obviously reduced metal foil particle, the energy of residue and temperature, prevent burner port occur in 4 inner surface of airbag, avoid high temperature
Directly impact and damage of the gas to 4 inner surface of airbag.
Referring to Figure 11,12, the initial stage is unfolded in air bag inflator, after gas breaks through instrument board door closure 26, impacts top cover 13
Afterwards, top cover 13 changes airflow direction, and most gases flow out from leading port 9, towards air guide direction along 2 surface flow of instrument board,
Airbag rear end 31 is promoted to occupant side, and is inflated from the gas that auxiliary air guide port 8 comes out to the left and right sides of airbag 4.
Referring to Figure 13,14, U-type groove is torn in advance as gas impact force increases in airbag 4 and occupant's head contact phase
20 are torn, and drawstring 2 16 increases, and sewing thread 17 moves up, and dominate port 9 and increase, and gas is towards the air guide direction after change
It is further flowed along 2 surface of instrument board, airbag rear end 31 is promoted to the gap between 3 head of occupant and instrument board 2, portion gas
The gas come out from auxiliary air guide port 8 continues to inflate to the left and right sides of airbag 4.
Referring to Figure 15,16, in the stage that is full of of airbag 4, the pre- U-type groove 20 that tears is torn at U-shaped reinforced sheet 24, drawstring 2 16
Reach longest, dominate port 9 and further increase, air guide direction reaches capacity direction, and gas is to airbag top 7 and airbag lower part 6
Inflation, is conducive to control expansion posture.Airbag rear end 31 is promoted between 3 chest of instrument board 2 and occupant, and gradually occupant
It is pushed open from instrument board 2, the injury to Retired old person can be reduced, be conducive to the protection to Retired old person.
Embodiment 2, the difference part with previous embodiment is only described in this example, and same section is not repeated to illustrate.
Referring to Fig. 5-7,14 both ends of occupant side sideline of top cover 13 are respectively equipped with a concave edge 2 22, and heat insulation bottom board 23 two
The rear end of side 10 is respectively equipped with one group of fixed auricle 18 and concave edge 1, is equipped between fixed auricle 18 and concave edge 1 and tears in advance
U-type groove 20 is split, the length in occupant side sideline 14 is greater than the distance between two concave edges 1.In 4 gas replenishment process of airbag, with
Impact force is stepped up, and pre- 20 stress of U-type groove that tears is torn, and leading port 9 increases and changes air guide direction.
Referring to Fig. 7, concave edge 1 is aligned with concave edge 2 22 and, fixed auricle 18 and airbag side fixed using sewing thread 17
Plate 37 or airbag front plate 38 are sewed and connected, thus the relative position of fixed top cover 13.It is equipped in the inside of tearing U-type groove 20 in advance
U-shaped reinforced sheet 24, U-shaped reinforced sheet 24 are stitched together by suture with heat insulation bottom board 23, play the pre- tearing U-type groove 20 of limitation most
The effect of big tearing position.
Referring to Figure 13, Figure 14, torn in advance U-shaped in airbag 4 and occupant's head contact phase as gas impact force increases
Slot 20 is torn, and sewing thread 17 moves up, and is dominated port 9 and is increased, gas is towards the air guide direction after change along 2 table of instrument board
Face is further flowed, airbag rear end 31 between 3 head of occupant and instrument board 2 gap promote, portion gas from auxiliary air guide
Mouth 8 flows to the left and right sides of airbag 4.
Referring to Figure 15, Figure 16, in the stage that is full of of airbag 4, the pre- U-type groove 20 that tears is torn at U-shaped reinforced sheet 24, dominates gas
Mouthfuls 9 reach maximum, and air guide direction reaches capacity direction, and gas is inflated to airbag top 7 and airbag lower part 6, is conducive to control
Posture is unfolded.Airbag rear end 31 is promoted between 3 chest of instrument board 2 and occupant, and gradually occupant is pushed open from instrument board 2,
The injury to Retired old person can be reduced, be conducive to the protection to Retired old person.
Embodiment 3, the difference part with previous embodiment is only described in this example, and same section is not repeated to illustrate.
Referring to Fig. 8-10,14 both ends of occupant side sideline of top cover 13 are respectively equipped with a drawstring 1, and heat insulation bottom board 23 is
One piece construction.
Shown in Figure 10, drawstring 1 is with heat insulation bottom board 23 and airbag side panel 37 or airbag front plate 38 using sewing
Line 17 is fixed, and the distance between drawstring 1 is greater than the distance between two sewing threads 17.
Referring to Figure 13, Figure 14, in airbag 4 and occupant's head contact phase, gas air guide direction is along 2 surface of instrument board into one
Step flowing, airbag rear end 31 are promoted to gap between 3 head of occupant and instrument board 2, and portion gas flows to gas from auxiliary air guide port 8
The left and right sides of bag 4.
Referring to Figure 15, Figure 16, in the stage that is full of of airbag 4, airbag rear end 31 continue to instrument board 2 and 3 chest of occupant it
Between promote, and gradually occupant is pushed open from instrument board 2, the injury to Retired old person can be reduced, be conducive to Retired old person
Protection.
Claims (9)
1. a kind of safe automobile air bag equipped with guiding device, including gas generator, airbag, guiding device and shell, shell
(28) it is mounted in instrument board (2), gas generator (27) is arranged at airbag air inlet (34), it is characterised in that: water conservancy diversion dress
Set the inside that (5) are fixed on airbag (4), and be located at airbag air inlet (34), guiding device (5) include heat insulation bottom board (23) and
Top cover (13), heat insulation bottom board (23) surface are provided with water conservancy diversion air inlet (12), and the inner surface of heat insulation bottom board (23) and airbag (4) pastes
It closes, top cover (13) is covered on the top of water conservancy diversion air inlet (12), the occupant side sideline (14) and heat insulation bottom board (23) of top cover (13)
Between form leading port (9), formed and assisted between the side line (11) of top cover (13) and the side (10) of heat insulation bottom board (23)
Air guide port (8).
2. a kind of safe automobile air bag equipped with guiding device according to claim 1, it is characterised in that: the water conservancy diversion
It is directlyed adopt between air inlet (12) and airbag air inlet (34) fixed using stud (29) again after stud (29) are fixed or sutured.
3. a kind of safe automobile air bag equipped with guiding device according to claim 1, it is characterised in that: the top cover
(13) occupant side sideline (14) both ends are respectively equipped with a drawstring one (15), the rear end of (23) two sides (10) of heat insulation bottom board
It is respectively equipped with one group of fixed auricle (18) and drawstring two (16), pre- tearing U is equipped between fixed auricle (18) and drawstring two (16)
Type groove (20), drawstring one (15) and drawstring two (16) are fixed using sewing thread (17), fixed auricle (18) and airbag side panel
(37) or airbag front plate (38) is sewed and connected.
4. a kind of safe automobile air bag equipped with guiding device according to claim 3, it is characterised in that: the drawstring
The length of one (15) is greater than the length of drawstring two (16).
5. a kind of safe automobile air bag equipped with guiding device according to claim 1, it is characterised in that: the top cover
(13) occupant side sideline (14) both ends are respectively equipped with a concave edge two (22), the rear end of (23) two sides (10) of heat insulation bottom board
It is respectively equipped with one group of fixed auricle (18) and concave edge one (21), pre- tearing U is equipped between fixed auricle (18) and concave edge one (21)
Type groove (20), concave edge one (21) and concave edge two (22) are fixed using sewing thread (17), fixed auricle (18) and airbag side panel
(37) or airbag front plate (38) is sewed and connected.
6. a kind of safe automobile air bag equipped with guiding device according to claim 5, it is characterised in that: the occupant
The length of side line (14) is greater than the distance between two concave edges one (21).
7. a kind of safe automobile air bag equipped with guiding device according to claim 3 or 5, it is characterised in that: described
The inside of pre- tearing U-type groove (20) is equipped with U-shaped reinforced sheet (24).
8. a kind of safe automobile air bag equipped with guiding device according to claim 1, it is characterised in that: the top cover
(13) occupant side sideline (14) both ends are respectively equipped with a drawstring one (15), and heat insulation bottom board (23) is one piece construction, drawstring
One (15) and heat insulation bottom board (23) and airbag side panel (37) or airbag front plate (38) are fixed using sewing thread (17).
9. a kind of safe automobile air bag equipped with guiding device according to claim 8, it is characterised in that: the drawstring
The distance between one (15) are greater than the distance between two sewing threads (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821392429.XU CN208947266U (en) | 2018-08-28 | 2018-08-28 | A kind of safe automobile air bag equipped with guiding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821392429.XU CN208947266U (en) | 2018-08-28 | 2018-08-28 | A kind of safe automobile air bag equipped with guiding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208947266U true CN208947266U (en) | 2019-06-07 |
Family
ID=66736070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821392429.XU Active CN208947266U (en) | 2018-08-28 | 2018-08-28 | A kind of safe automobile air bag equipped with guiding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208947266U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108891378A (en) * | 2018-08-28 | 2018-11-27 | 延锋百利得（上海）汽车安全系统有限公司 | A kind of air bag equipped with guiding device |
-
2018
- 2018-08-28 CN CN201821392429.XU patent/CN208947266U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108891378A (en) * | 2018-08-28 | 2018-11-27 | 延锋百利得（上海）汽车安全系统有限公司 | A kind of air bag equipped with guiding device |
| CN108891378B (en) * | 2018-08-28 | 2023-05-30 | 延锋汽车智能安全系统有限责任公司 | Safety airbag with flow guiding device |
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Effective date of registration: 20191216 Address after: 200120 Building 8, No. 88, Shengrong Road, Pudong New Area, Shanghai Co-patentee after: Yanfeng Automobile Intelligent Safety System Co., Ltd. Patentee after: Shanghai Lingang Junsheng automobile safety system Co., Ltd Address before: 201315 No. 426 Pu Pu Road, Cambridge Industrial Zone, Shanghai, Pudong New Area Patentee before: Yanfeng Bailide (Shanghai) Automobile Safety System Co., Ltd. |