CN210416503U - Automobile driver safety airbag, steering wheel and automobile - Google Patents
Automobile driver safety airbag, steering wheel and automobile Download PDFInfo
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- CN210416503U CN210416503U CN201921103591.XU CN201921103591U CN210416503U CN 210416503 U CN210416503 U CN 210416503U CN 201921103591 U CN201921103591 U CN 201921103591U CN 210416503 U CN210416503 U CN 210416503U
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Abstract
The utility model discloses a motorist air bag, include: an air bag bracket mounted on the steering wheel frame body; an airbag cover detachably mounted on the airbag bracket; an air bag mounted on said air bag support and located within said air bag cover; the gas generator generates a large amount of high-temperature and high-pressure gas when being triggered, the gas generator enters the gas bag, and the gas bag is driven to tear the airbag cover and expand to form an air cushion for protecting a driver; the gas generator is mounted within a steering column, and a large amount of high-temperature, high-pressure gas generated when it is triggered is introduced into the gas bag via the steering column. Also discloses a steering wheel containing the automobile driver safety airbag and an automobile containing the steering wheel. The utility model discloses a motorist air bag has that the reliability is high, the complexity is low, reduce advantages such as the plosives when being triggered.
Description
Technical Field
The utility model relates to an automobile air bag technical field especially relates to a driver's air bag and include the steering wheel of this gasbag and include the car of this steering wheel.
Background
Traditional driver's air bag is by gas generator, the air pocket, the gasbag splint, the air bag support, structures such as gasbag shroud and emblem are formed, the integration has mechanisms such as installation location and horn switch on the air bag support, because automobile industry design's requirement is higher and higher, automobile parts product is towards more and more miniaturization, the exquisiteness, lightweight and integrated direction development, it is more and more littleer to require driver's air bag's arrangement space, above-mentioned spare part is whole integrated on driver's air bag, various functional structure are crowded together and are influenced driver's air bag structural reliability and miniaturized realization, increase the manufacturing degree of difficulty.
And secondly, the safety airbag of the automobile driver is integrated with a horn switch and suspended in the middle of the steering wheel through a horn spring, and the safety airbag of the automobile driver and the horn spring form a vibration system. Because the quality of the safety airbag for the automobile driver is large, and the spring force of the horn cannot be too large in order to meet the requirement of the pressing comfort of the horn switch, the natural frequency of the vibration system is low, and the vibration system is easily influenced by the vibration of an engine and the excitation of a road surface, so that the mistaken sounding of the horn, the vibration fatigue damage of parts and the vibration abnormal sound are caused, and the comfort of the environment in the automobile is influenced.
Moreover, most current driver air bags all adopt pyrotechnic gas generators, and the gas generated when the explosive is ignited is used for filling the air bags. Since the temperature and pressure of the gas generated when the explosive is ignited are very high, the gas generator itself, the gunpowder residue and the high-temperature gas may scald the airbag support and burn the airbag. In addition, the loud sound of the gas generator on ignition can cause serious psychological damage to the occupants.
SUMMERY OF THE UTILITY MODEL
The utility model discloses one of the technical problem that will solve lies in: the automobile driver safety airbag improves the structural reliability, realizes miniaturization, reduces the structural complexity and reduces the explosion sound generated during triggering.
The second technical problem to be solved in the present invention is: there is provided a steering wheel incorporating the above-described motorist's air-bag.
The utility model discloses the third technical problem that will solve lies in: an automobile comprising the steering wheel is provided.
As the utility model discloses a motorist air bag of first aspect, include:
an air bag bracket mounted on the steering wheel frame body;
an airbag cover detachably mounted on the airbag bracket;
an air bag mounted on said air bag support and located within said air bag cover; and
a gas generator, wherein a large amount of high-temperature and high-pressure gas generated by the gas generator when being triggered enters the gas bag to drive the gas bag to tear the airbag cover and expand to form an air cushion for protecting a driver; wherein the gas generator is mounted in a steering column and a large amount of high-temperature and high-pressure gas generated when the gas generator is triggered is introduced into the gas bag through the steering column.
In a preferred embodiment of the present invention, the steering column comprises an upper tubular column and a lower tubular column, the upper end of the upper tubular column sequentially passes through the steering wheel frame and the airbag support and then extends into the airbag, a mounting cavity is formed between the upper tubular column and the lower tubular column for placing the gas generator, the gas generator is mounted in the mounting cavity, the periphery of the gas generator and the inner wall of the mounting cavity form a gap, at least one guide channel extending axially is formed in the upper tubular column, and one end of each guide channel is located on the upper end surface of the upper tubular column, and the other end of the guide channel is communicated with the mounting cavity.
In a preferred embodiment of the present invention, an elastic partition plate is installed on the upper end surface of the gas generator, and the elastic partition plate defines the gas generator in the installation cavity to prevent the gas generator from loosening and generating abnormal sound in the installation cavity.
In a preferred embodiment of the present invention, a filtering and sound-absorbing material is filled between the inner wall of the installation cavity and the outer peripheral surface of the gas generator.
In a preferred embodiment of the present invention, the filtering and sound absorbing material is a metal mesh or glass fiber.
In a preferred embodiment of the present invention, the upper tubular column and the lower tubular column are connected by a snap-fit manner, a thread manner, a flange and a bolt-fit manner or a riveting manner.
A steering wheel according to a second aspect of the present invention includes a steering wheel frame body, a driver installation airbag, and a steering column, wherein the steering wheel frame body shaft is provided on the steering column, and the driver installation airbag is installed on the steering wheel frame body; characterized in that the driver mounting airbag is the above-mentioned automobile driver airbag.
The present invention is an automobile according to a third aspect, and is characterized by including the above-described steering wheel.
Due to the adoption of the technical scheme, the utility model discloses a beneficial technological effect lies in:
1. the utility model discloses separate out gas generator from driver air bag, and install in steering column, because it has gas generator no longer to integrate in the driver's gasbag, the space of saving out can hold bigger size air pocket, consequently for traditional driver's gasbag structure, can be in the air pocket of integration bigger size of littleer gasbag shroud, the meeting customer of bigger degree is to the design requirement of increase driver air bag protection and miniaturized exquisiteization. In addition, the weight of the driver airbag can be obviously reduced, the natural frequency of the driver airbag is improved under the condition of not increasing the pressing force of a horn, the vibration generated by the influence of the vibration of an automobile engine and the excitation of a road surface due to the low natural frequency of the driver airbag is improved, and the vibration fatigue damage and the vibration abnormal sound of the driver airbag are reduced.
2. Because gas generator installs on steering column, gasbag cover and air pocket are installed on steering wheel skeleton body, consequently need not use the fixed of air bag support or support function when gas generator is triggered and the air pocket expandes, consequently, the air bag support only needs the function of integrated original horn switch, the intensity requirement to air bag support obviously reduces, air bag support can adopt light-duty, low-strength and low-cost material preparation, adopt the design of no air bag support even, can obviously reduce driver's gasbag module's structural complexity and production manufacturing cost.
3. The utility model discloses a turn to and be formed with an at least direction passageway in the body, the high temperature high-pressure gas that gas generator produced after being triggered is through the water conservancy diversion, in the air pocket is reintroduced to the cooling back, can obviously reduce the impact and the scald of high temperature high-pressure gas to the air pocket to direction passageway's cross sectional dimension and highly production resistance noise cancelling effect are adjusted to the accessible, the plosives that can obviously reduce gas generator and produce when being triggered alleviate because huge plosives cause the psychological injury to driver and crew.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Figure 1 is a schematic view of the installation of an embodiment of the inventive airbag for a driver of a vehicle.
Figure 2 is a schematic view of the installation of another embodiment of the inventive motorist airbag.
Fig. 3 is a schematic structural view of the gas generator of the present invention installed in a steering column.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.
Referring to fig. 1 in conjunction with fig. 3, there is shown a driver's airbag for a vehicle, including an airbag support 100, an airbag cover 200, an airbag 300, and a gas generator 400.
The airbag bracket 100 is mounted on the steering wheel frame body 10 through a quick connector 110, and the steering wheel frame body 10 is axially provided on the steering column 20. The airbag cover 200 is detachably mounted to the airbag bracket 100, and a logo 210 is detachably mounted to the top surface of the airbag cover 200. The airbag 300 is mounted on the airbag bracket 100 in a folded manner by an airbag clip 310 and is located inside the airbag cover 200.
The gas generator 400 is mounted within the steering column 20. Specifically, the steering column 20 is composed of an upper column 21 and a lower column 22, and the upper column 21 and the lower column 22 are detachably connected to each other by a snap-fit method, a screw-fit method, a flange-and-bolt-fit method, a caulking method, or the like. The upper end of the upper pipe column 21 sequentially passes through the steering wheel framework body 10 and the airbag support 100 and then extends into the airbag 300, an installation cavity 30 for placing a gas generator 400 is formed between the upper pipe column 21 and the lower pipe column 22, the gas generator 400 is installed in the installation cavity 30, a certain gap 31 is reserved between the outer peripheral surface of the gas generator 400 and the inner wall of the installation cavity 30, at least one guide channel 21a extending along the axial direction is formed in the upper pipe column 21, one end of each guide channel 21a is located on the upper end face of the upper pipe column 21, and the other end of each guide channel 21a is communicated with the installation cavity 30. In the present embodiment, the guide channel 21a is in the form of, but not limited to, a single channel or multiple channels as required, the cross section of the guide channel 21a is in, but not limited to, a circular, oval, square or other anisotropic structure, and the cross-sectional size and height of the guide channel 21a are adjusted as required to play a role in resisting sound.
An elastic partition plate 410 is installed on the upper end surface of the gas generator 400 in the installation cavity 30, and the elastic partition plate 410 limits the gas generator 400 in the installation cavity 30 to prevent the gas generator 400 from loosening in the installation cavity 30 to generate abnormal noise. Further, a filter sound absorbing material (not shown) is filled between the inner wall of the mounting cavity 30 and the outer peripheral surface of the gas generator 400, and functions to filter powder residue and damp noise. In this embodiment, the filtering sound-absorbing material may be a metal mesh or glass fiber.
When the gas generator 400 receives the ignition pulse and is ignited, a large amount of high-temperature and high-pressure gas generated by the gas generator 400 is discharged from the exhaust hole 401 on the side surface thereof and enters the gap 31 formed between the outer peripheral surface of the gas generator 40 and the inner wall of the mounting cavity 30, enters the guide channel 21a after passing through the filtering and sound-absorbing material, is guided into the air bag 300 from the upper end opening of the upper tubular column 21 after passing through the buffering and reactive sound attenuation of the guide channel 21a, and drives the air bag 300 to tear the air bag cover 200 and expand to form an air cushion for protecting a driver.
Referring to fig. 2, there is shown a structure of another embodiment of the inventive driver airbag for a vehicle, which eliminates an airbag bracket and in which an air bag 300 is directly installed through a quick coupling 310 at a portion of an upper column 21 of a steering column 20 that passes through a steering wheel frame body 10.
The utility model discloses separate gas generator 400 from driver airbag, and install in steering column 20, because it has gas generator 400 to no longer integrate in the driver airbag, the space of saving out can hold bigger size air pocket, consequently for traditional driver airbag structure, can integrate bigger size air pocket in littleer gasbag shroud, bigger degree satisfy the customer to the design requirement of increase driver airbag protection and miniaturized exquisiteness. In addition, the weight of the driver airbag can be obviously reduced, the natural frequency of the driver airbag is improved under the condition of not increasing the pressing force of a horn, the vibration generated by the influence of the vibration of an automobile engine and the excitation of a road surface due to the low natural frequency of the driver airbag is improved, and the vibration fatigue damage and the vibration abnormal sound of the driver airbag are reduced.
Since the gas generator 400 is mounted on the steering column 20 and the airbag cover 200 and the airbag 300 are mounted on the steering wheel frame body 10, when the gas generator 400 is triggered and the airbag 300 is deployed, it is not necessary to use the fixing or supporting function of the airbag bracket 100, and therefore the airbag bracket 100 only needs to integrate the function of the original horn switch, the strength requirement of the airbag bracket 100 is significantly reduced, the airbag bracket 100 can be made of light, low-strength and low-cost materials, and even the design without the airbag bracket is adopted, as shown in fig. 2, the structural complexity and the production and manufacturing cost of the driver airbag module can be significantly reduced.
The utility model discloses a turn to and be formed with an at least guide way 21a in the body 20, high temperature high-pressure gas that gas generator 400 produced after being triggered is through the water conservancy diversion, in the leading-in air pocket 300 again after the cooling, can obviously reduce high temperature high-pressure gas to the impact and the scald of air pocket 300, and guide way 21 a's cross sectional dimension and highly production resistance noise cancelling effect are adjusted to the accessible, the plosives that can obviously reduce gas generator 400 and produce when being triggered, alleviate because huge plosives the psychological injury that causes driver and crew.
The utility model discloses a motorist air bag can be applied to on the steering wheel. The steering wheel containing the automobile driver safety airbag can be applied to automobiles.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. An automotive driver airbag comprising:
an air bag bracket mounted on the steering wheel frame body;
an airbag cover detachably mounted on the airbag bracket;
an air bag mounted on said air bag support and located within said air bag cover; and
a gas generator, wherein a large amount of high-temperature and high-pressure gas generated by the gas generator when being triggered enters the gas bag to drive the gas bag to tear the airbag cover and expand to form an air cushion for protecting a driver; wherein the gas generator is mounted in a steering column and a large amount of high-temperature and high-pressure gas generated when the gas generator is triggered is introduced into the gas bag through the steering column.
2. The airbag for automobile drivers as defined in claim 1, wherein the steering column is composed of an upper column and a lower column, the upper end of the upper column sequentially passes through the steering wheel frame body and the airbag support and then extends into the airbag, an installation cavity for placing the gas generator is formed between the upper column and the lower column, the gas generator is installed in the installation cavity with a certain gap between the outer circumferential surface and the inner wall of the installation cavity, at least one guide channel extending in the axial direction is formed in the upper column, one end of each guide channel is located on the upper end surface of the upper column, and the other end of each guide channel is communicated with the installation cavity.
3. The automobile driver's airbag according to claim 2, wherein an elastic partition plate is installed on an upper end surface of the mounting chamber in the gas generator, the elastic partition plate confining the gas generator within the mounting chamber to prevent the gas generator from being loosened in the mounting chamber to generate abnormal noise.
4. The driver's airbag according to claim 3, wherein a filtering sound-absorbing material is filled between an inner wall of the mounting cavity and an outer circumferential surface of the gas generator.
5. The automobile driver airbag according to claim 4, wherein the filtering sound-absorbing material is a metal mesh or glass fiber.
6. The motorist's airbag of any one of claims 2 to 5, wherein the connection between the upper and lower tubular columns is by snap-fit, screw, flange and bolt or rivet.
7. A steering wheel comprises a steering wheel framework body, a driver installation air bag and a steering column, wherein the steering wheel framework body is axially arranged on the steering column, and the driver installation air bag is installed on the steering wheel framework body; characterised in that the driver-mounted airbag is a motorist's airbag according to any one of claims 1 to 6.
8. An automobile, characterized by comprising the steering wheel according to claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921103591.XU CN210416503U (en) | 2019-07-15 | 2019-07-15 | Automobile driver safety airbag, steering wheel and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921103591.XU CN210416503U (en) | 2019-07-15 | 2019-07-15 | Automobile driver safety airbag, steering wheel and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210416503U true CN210416503U (en) | 2020-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921103591.XU Active CN210416503U (en) | 2019-07-15 | 2019-07-15 | Automobile driver safety airbag, steering wheel and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210416503U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112758042A (en) * | 2020-11-18 | 2021-05-07 | 浙江吉利控股集团有限公司 | Automobile antibacterial air bag |
| CN114148281A (en) * | 2021-12-24 | 2022-03-08 | 芜湖金安世腾汽车安全系统有限公司 | Silencing gas generator |
-
2019
- 2019-07-15 CN CN201921103591.XU patent/CN210416503U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112758042A (en) * | 2020-11-18 | 2021-05-07 | 浙江吉利控股集团有限公司 | Automobile antibacterial air bag |
| CN112758042B (en) * | 2020-11-18 | 2022-09-09 | 浙江吉利控股集团有限公司 | Automobile antibacterial air bag |
| CN114148281A (en) * | 2021-12-24 | 2022-03-08 | 芜湖金安世腾汽车安全系统有限公司 | Silencing gas generator |
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