CN108860047B - Automobile knee airbag device - Google Patents
Automobile knee airbag device Download PDFInfo
- Publication number
- CN108860047B CN108860047B CN201810638111.3A CN201810638111A CN108860047B CN 108860047 B CN108860047 B CN 108860047B CN 201810638111 A CN201810638111 A CN 201810638111A CN 108860047 B CN108860047 B CN 108860047B
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- Prior art keywords
- airbag
- cavity
- fixed
- shell
- baffle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/205—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in dashboards
- B60R21/206—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in dashboards in the lower part of dashboards, e.g. for protecting the knees
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R2021/23169—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for knee protection
Abstract
The invention discloses an automobile knee airbag device which comprises a U-shaped shell formed by sequentially connecting an instrument panel shell, a steering wheel fixing shell and an airbag fixing plate, wherein the airbag shell is fixed on the airbag fixing plate, a partition plate is fixed in the airbag shell, the partition plate divides the interior of the airbag shell into a first cavity and a second cavity, a curled first airbag is arranged in the first cavity, and a second airbag is arranged in the second cavity; the problem of traditional knee gasbag device difficult effectual shank to the passenger carry out comprehensive protection, especially different passenger's position of sitting is different, its shank probably presents crooked or upright state, and single gasbag can not effectively protect it, and in addition, traditional gasbag when popping out, the installation casing of fixed gasbag probably drops and causes secondary damage to passenger's shank is solved.
Description
Technical Field
The present invention relates to an automotive airbag, and particularly, to an automotive knee airbag device.
Background
An electronic safety air bag is a passive safety protection system, and is matched with a seat belt for use, so that effective anti-collision protection can be provided for passengers. When the automobile collides, the automobile safety air bag can reduce the head injury rate by 25 percent and the face injury rate by about 80 percent. The knee airbag device is a common in-vehicle airbag that protects the legs of a passenger by deploying the airbag between the instrument panel and the lower leg (e.g., shin) of the passenger in the event of a collision. In the event of a vehicle collision, the airbag prevents the occupant from colliding with the instrument panel at a high acceleration. The instrument panel is made of a high-hardness material, and thus, when the passenger collides with the instrument panel at a high acceleration, a large force is applied to the leg of the passenger. The airbag device allows a passenger to collide with the airbag, not with a component of the vehicle, thereby causing a relatively low impact force to be applied to the passenger. Traditional knee airbag device only is provided with single gasbag, can effectively protect passenger's shank, prevent that it from colliding forward, when the car accident, its panel board probably can push down and extrude passenger's thigh, traditional knee airbag device is hardly effectual carries out comprehensive protection to passenger's shank, especially different passenger's position of sitting is different, its shank probably presents crooked or upright state, single gasbag can not effectively protect it, in addition, traditional gasbag is when popping out, the installation casing of fixed gasbag probably drops and causes the secondary injury to passenger's shank.
Disclosure of Invention
The invention aims to provide an automobile knee airbag device, which solves the problems that the traditional knee airbag device is difficult to effectively protect the legs of passengers comprehensively, particularly different passengers have different sitting postures, the legs of the passengers are possibly bent or upright, a single airbag cannot effectively protect the passengers, and in addition, when the traditional airbag is popped up, a mounting shell for fixing the airbag can fall off to cause secondary injury to the legs of the passengers.
In order to achieve the above object, the present invention provides an automotive knee airbag device, which includes a U-shaped housing formed by sequentially connecting an instrument panel housing, a steering wheel fixing housing and an airbag fixing plate, wherein an airbag housing is fixed on the airbag fixing plate, a partition plate is fixed in the airbag housing, the partition plate divides the interior of the airbag housing into a first cavity and a second cavity, a first curled airbag is disposed in the first cavity, a first gas generator fixed on the airbag fixing plate is further disposed in the first cavity, the first gas generator is located in the first airbag, a second curled airbag is disposed in the second cavity, a second gas generator fixed on the partition plate is further disposed in the second cavity, the second gas generator is located in the second airbag, and a first penetrating airbag communicated with the first cavity is disposed in the airbag housing near the first cavity The two opposite side edges of the first through opening are recessed towards the two sides to form grooves, switch door plates are respectively arranged in the grooves in a sliding manner, the switch door plate is respectively fixed with an arc-shaped push plate positioned in the first cavity, the arc-shaped push plate bends towards two sides in the first cavity, a spring is also fixed in the groove, one end of the spring is fixed in the groove, the other end of the spring is connected with the door opening and closing plate, when the first air bag is expanded under the action of the first gas generator, the first air bag pushes and presses the arc-shaped push plate towards two sides, and expands out from the first through opening, a second through opening communicated with the second cavity is arranged in the air bag shell and close to the second cavity, the second penetrating port is hinged with a switch board, and the switch board is provided with a buckle device positioned in the second cavity.
Preferably, the buckle device includes a fixed cross bar fixed on the inner wall of the second cavity, and a sliding bar fixed on the inner surface of the switch board, at least a part of the sliding bar penetrates through the fixed cross bar, a torsion spring is fixed on the top end of the sliding bar, a first baffle and a second baffle are respectively fixed on two ends of the torsion spring, in an initial state, the first baffle and the second baffle are in a horizontal state to prevent the sliding bar from falling off from the fixed cross bar, when the second airbag expands, the second airbag drives the switch board to rotate outwards, at this time, the first baffle and the second baffle are folded upwards, and the sliding bar can fall off from the fixed cross bar.
Preferably, a plurality of first abutment posts are secured within the first cavity and encircle the first bladder to enable directional inflation of the first bladder toward the first through opening.
Preferably, a plurality of second abutment columns surrounding the second airbag are fixed in the second cavity, so that the second airbag can directionally expand towards the second through opening.
Preferably, the number of the first abutment columns is not less than 4 groups.
Preferably, the number of the second abutment columns is not less than 4 groups.
Preferably, the switch door panel and the switch panel are both made of flexible plastic materials.
According to the technical scheme, the invention provides an automobile knee airbag device, which comprises a U-shaped shell formed by sequentially connecting an instrument panel shell, a steering wheel fixing shell and an airbag fixing plate, wherein the airbag shell is fixed on the airbag fixing plate, a partition plate is fixed in the airbag shell, the partition plate divides the interior of the airbag shell into a first cavity and a second cavity, a curled first airbag is arranged in the first cavity, a second airbag is arranged in the second cavity, a first through opening communicated with the first cavity is arranged in the airbag shell and close to the first cavity, two opposite side edges in the first through opening are recessed towards two sides to form grooves, switch door plates are respectively slidably arranged in the grooves, and arc-shaped push plates positioned in the first cavity are respectively fixed on the switch door plates, the arc-shaped push plate is bent towards two sides in the first cavity, when the first air bag expands under the action of the first gas generator, the first air bag pushes and presses the arc-shaped push plate towards two sides and expands out of the first through opening, a second through opening communicated with the second cavity is arranged in the air bag shell and close to the second cavity, a switch plate is hinged to the second through opening, and a buckle device positioned in the second cavity is arranged on the switch plate; the automobile knee airbag device provided by the invention is mainly arranged below an automobile instrument panel, and comprises 2 independent airbag devices, wherein the airbags can respectively and effectively protect thighs and shanks of passengers when being expanded, and can effectively protect the thighs and the shanks of the passengers no matter what posture the legs of the passengers are in during an accident, so that on one hand, the legs of the passengers are prevented from being collided forwards, and on the other hand, the instrument panel is prevented from deforming to press the thighs of the passengers, and on the other hand, the airbag devices comprise a push-pull type switch door and a hinged type switch door, so that the switch door cannot fall off from a main shell when the airbags are expanded and sprayed out, secondary damage to the passengers when the switch door is opened is avoided, and meanwhile, the airbags can be conveniently stored.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a structural view of an automotive knee airbag apparatus provided by the present invention;
FIG. 2 is a structural view of a buckle device in an automotive knee airbag device according to the present invention.
Description of the reference numerals
1-instrument panel shell 2-fastener device
3-steering wheel fixing shell 4-airbag fixing plate
5-airbag housing 6-first cavity
7-second cavity 8-baffle
9-first gas generator 10-first gas bag
11-first abutment 12-second gas generator
13-second airbag 14-second resisting column
15-switch door panel 17-spring
18-arc push plate 19-switch plate
21-fixed cross bar 22-sliding bar
23-torsion spring 24-first baffle
25-second baffle
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, unless otherwise specified, the directional words "one end, the other end" and the like included in the terms merely represent the orientation of the terms in a conventional use state or a common name understood by those skilled in the art, and should not be construed as a limitation of the terms.
As shown in fig. 1 and 2: the invention provides an automobile knee airbag device, which comprises a U-shaped shell formed by sequentially connecting an instrument panel shell 1, a steering wheel fixing shell 3 and an airbag fixing plate 4, wherein an airbag shell 5 is fixed on the airbag fixing plate 4, a partition plate 8 is fixed in the airbag shell 5, the partition plate 8 divides the interior of the airbag shell 5 into a first cavity 6 and a second cavity 7, a curled first airbag 10 is arranged in the first cavity 6, a first gas generator 9 fixed on the airbag fixing plate 4 is also arranged in the first cavity 6, the first gas generator 9 is positioned in the first airbag 10, a curled second airbag 13 is arranged in the second cavity 7, a second gas generator 12 fixed on the partition plate 8 is also arranged in the second cavity 7, and the second gas generator 12 is positioned in the second airbag 13, a first through opening communicated with the first cavity 6 is arranged in the air bag shell 5 and close to the first cavity 6, two opposite side edges in the first through opening are recessed towards two sides to form grooves, a switch door panel 15 is respectively arranged in the grooves in a sliding manner, an arc-shaped push plate 18 positioned in the first cavity 6 is respectively fixed on the switch door panel 15, the arc-shaped push plate 18 is bent towards two sides in the first cavity 6, a spring 17 is also fixed in the groove, one end of the spring 17 is fixed in the groove, the other end of the spring 17 is connected with the switch door panel 15, when the first air bag 10 expands under the action of the first gas generator 9, the first air bag 10 pushes and presses the arc-shaped push plate 18 towards two sides and expands from the first through opening, and a second through opening communicated with the second cavity 7 is arranged in the air bag shell 5 and close to the second cavity 7, the second through hole is hinged with a switch plate 19, and the switch plate 19 is provided with a buckle device 2 positioned in the second cavity 7. The automobile knee airbag device provided by the invention is mainly arranged below an automobile instrument panel, and comprises 2 independent airbag devices, wherein the airbags can respectively and effectively protect thighs and shanks of passengers when being expanded, and can effectively protect the thighs and the shanks of the passengers no matter what posture the legs of the passengers are in during an accident, so that on one hand, the legs of the passengers are prevented from being collided forwards, and on the other hand, the instrument panel is prevented from deforming to press the thighs of the passengers, and on the other hand, the airbag devices comprise a push-pull type switch door and a hinged type switch door, so that the switch door cannot fall off from a main shell when the airbags are expanded and sprayed out, secondary damage to the passengers when the switch door is opened is avoided, and meanwhile, the airbags can be conveniently stored.
In a preferred embodiment of the present invention, in order to enable the switch board 19 to be rotated and opened in time when the second air bag 13 is inflated, and at the same time, to prevent the switch board 19 from being accidentally ejected in a normal state, the fastening device 2 includes a fixed cross bar 21 fixed on an inner wall of the second cavity 7, a sliding rod 22 fixed on an inner surface of the switch board 19, the sliding rod 22 at least partially penetrates through the fixed cross bar 21, a torsion spring 23 is fixed on a top end of the sliding rod 22, a first baffle 24 and a second baffle 25 are respectively fixed on two ends of the torsion spring 23, in an initial state, the first baffle 24 and the second baffle 25 are in a horizontal state to prevent the sliding rod 22 from falling off the fixed cross bar 21, when the second air bag 13 is inflated, the second air bag 13 drives the switch board 19 to rotate outwards, and at this time, the first baffle 24 and the second baffle 25 are folded upwards, the slide bar 22 can be detached from the fixed cross bar 21.
In a preferred embodiment of the invention, in order to enable the directional inflation of the first airbag 10 out of the first through opening, a plurality of first abutment posts 11 surrounding the first airbag 10 are fixed inside the first cavity 6, so that the first airbag 10 can be directionally inflated towards the first through opening.
In order to enable a directed inflation of the second airbag 13 out of the second through-opening, in a preferred embodiment of the invention, a plurality of second abutment columns 14 are fastened in the second cavity 7 around the second airbag 13, in order to enable a directed inflation of the second airbag 13 towards the second through-opening.
In a preferred embodiment of the present invention, the number of the first abutment posts 11 is not less than 4 groups in order to enable the first airbag 10 to be directionally inflated from the first through opening.
In a preferred embodiment of the present invention, the number of the second abutment posts 14 is not less than 4 groups in order to enable the second airbag 13 to be directionally inflated from the second through-opening.
In a preferred embodiment of the present invention, in order to prevent the second injury caused by the accidental falling of the switch door panel 15 and the switch plate 19 when the first air bag 10 and the second air bag 13 are inflated, the switch door panel 15 and the switch plate 19 are both made of flexible plastic materials.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (7)
1. The automobile knee airbag device is characterized by comprising a U-shaped shell formed by sequentially connecting an instrument panel shell (1), a steering wheel fixing shell (3) and an airbag fixing plate (4), wherein an airbag shell (5) is fixed on the airbag fixing plate (4), a partition plate (8) is fixed in the airbag shell (5), the airbag shell (5) is internally divided by the partition plate (8) to form a first cavity (6) and a second cavity (7), a curled first airbag (10) is arranged in the first cavity (6), a first gas generator (9) fixed on the airbag fixing plate (4) is further arranged in the first cavity (6), the first gas generator (9) is positioned in the first airbag (10), and a curled second airbag (13) is arranged in the second cavity (7), a second gas generator (12) fixed on the partition board (8) is further arranged in the second cavity (7), the second gas generator (12) is located in the second air bag (13), a first through opening communicated with the first cavity (6) is arranged in the air bag shell (5) and close to the first cavity (6), two opposite side edges in the first through opening are recessed towards two sides to form grooves, a switch door panel (15) is respectively slidably arranged in the grooves, arc-shaped push plates (18) located in the first cavity (6) are respectively fixed on the switch door panel (15), the arc-shaped push plates (18) are bent towards two sides in the first cavity (6), springs (17) are further fixed in the grooves, one ends of the springs (17) are fixed in the grooves, and the other ends of the springs (17) are connected with the switch door panel (15), when the first air bag (10) expands under the action of the first air generator (9), the arc-shaped push plate (18) is pushed and pressed towards two sides by the first air bag (10) and expands out of the first through hole, a second through hole communicated with the second cavity (7) is formed in the air bag shell (5) and close to the second cavity (7), a switch plate (19) is hinged to the second through hole, and a buckle device (2) located in the second cavity (7) is arranged on the switch plate (19).
2. The knee airbag device for an automobile according to claim 1, wherein the buckle device (2) comprises a fixed cross bar (21) fixed on the inner wall of the second cavity (7), a sliding bar (22) fixed on the inner surface of the switch board (19), the sliding bar (22) at least partially penetrates through the fixed cross bar (21), a torsion spring (23) is fixed on the top end of the sliding bar (22), a first baffle (24) and a second baffle (25) are respectively fixed on both ends of the torsion spring (23), in an initial state, the first baffle (24) and the second baffle (25) are in a horizontal state to prevent the sliding bar (22) from falling off the fixed cross bar (21), when the second airbag (13) inflates, the second airbag (13) drives the switch board (19) to rotate outwards, and at this time, the first baffle (24) and the second baffle (25) are folded upwards, the sliding rod (22) can fall off from the fixed cross rod (21).
3. The automotive knee airbag arrangement according to any one of claims 1 to 2, characterized in that a plurality of first abutment posts (11) surrounding the first airbag (10) are fixed within the first cavity (6) to enable a directed inflation of the first airbag (10) towards the first through opening.
4. The automotive knee airbag device according to claim 1, characterized in that a plurality of second abutment posts (14) surrounding the second airbag (13) are fixed inside the second cavity (7) so that the second airbag (13) can be directionally inflated towards the second through opening.
5. The automotive knee airbag apparatus according to claim 3, characterized in that the number of the first abutment pillars (11) is not less than 4 groups.
6. The automotive knee airbag apparatus according to claim 4, characterized in that the number of the second abutment pillars (14) is not less than 4 groups.
7. The automotive knee airbag apparatus according to claim 1, characterized in that the opening and closing door panel (15) and the opening and closing panel (19) are both of a flexible plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810638111.3A CN108860047B (en) | 2018-06-20 | 2018-06-20 | Automobile knee airbag device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810638111.3A CN108860047B (en) | 2018-06-20 | 2018-06-20 | Automobile knee airbag device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108860047A CN108860047A (en) | 2018-11-23 |
| CN108860047B true CN108860047B (en) | 2020-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810638111.3A Active CN108860047B (en) | 2018-06-20 | 2018-06-20 | Automobile knee airbag device |
Country Status (1)
| Country | Link |
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| CN (1) | CN108860047B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115158214B (en) * | 2022-06-23 | 2024-03-22 | 浙江零跑科技股份有限公司 | Safety air curtain protection support |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4715030B2 (en) * | 2001-05-21 | 2011-07-06 | タカタ株式会社 | Passenger leg protection device |
| DE10204333B9 (en) * | 2002-02-01 | 2005-07-21 | Peguform Gmbh & Co. Kg | Retraction mechanism for the lining of an airbag system |
| JP4492451B2 (en) * | 2005-06-16 | 2010-06-30 | トヨタ自動車株式会社 | Vehicle airbag system |
| JP4386910B2 (en) * | 2006-09-29 | 2009-12-16 | 豊田合成株式会社 | Air bag device for knee protection |
| JP2009154669A (en) * | 2007-12-26 | 2009-07-16 | Nippon Plast Co Ltd | Cover body for airbag device and airbag device |
| KR101113667B1 (en) * | 2008-12-04 | 2012-02-14 | 기아자동차주식회사 | Crashpad for mounting airbag for vehicles |
| US8393636B2 (en) * | 2009-11-10 | 2013-03-12 | Toyoda Gosei Co. Ltd | Wrap-around airbag device |
| CN201646630U (en) * | 2010-03-19 | 2010-11-24 | 延锋伟世通汽车饰件系统有限公司 | Sliding air bag door system |
| DE102012107234B3 (en) * | 2012-08-07 | 2014-01-16 | Visteon Global Technologies, Inc. | Interior trim part with an airbag flap for a motor vehicle |
| DE102013013012B4 (en) * | 2013-08-06 | 2017-05-11 | Autoliv Development Ab | Airbag module with a housing and a cover |
| US9248799B2 (en) * | 2014-06-03 | 2016-02-02 | Autoliv Asp, Inc. | Dual cushion airbag with independent inflation |
| JP6264227B2 (en) * | 2014-08-19 | 2018-01-24 | トヨタ自動車株式会社 | Knee airbag device with grab door |
| KR102269369B1 (en) * | 2014-11-17 | 2021-06-25 | 현대모비스 주식회사 | Installation structure of side airbag |
| JP6546887B2 (en) * | 2016-09-05 | 2019-07-17 | 豊田合成株式会社 | Airbag cover |
| CN107139876A (en) * | 2017-05-09 | 2017-09-08 | 江苏龙脉新能源汽车配件有限公司 | A kind of protection device for driving cab of passenger car |
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| CN108860047A (en) | 2018-11-23 |
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Address after: 223005 No. 3 Meicheng Road, Huaian Economic and Technological Development Zone, Jiangsu Province Patentee after: Jiangsu electronic information Vocational College Address before: 223005 No. 3 Meicheng Road, Huaian Economic and Technological Development Zone, Jiangsu Province Patentee before: Jiangsu vocationnal college of electronics and information |
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Effective date of registration: 20220818 Address after: 230000 Room 203, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee after: Hefei Jiuzhou Longteng scientific and technological achievement transformation Co.,Ltd. Address before: 223005 No. 3 Meicheng Road, Huaian Economic and Technological Development Zone, Jiangsu Province Patentee before: Jiangsu electronic information Vocational College |
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Effective date of registration: 20230316 Address after: 130000 No. 4579 Silicon Valley Street, high tech Development Zone, Changchun City, Jilin Province Patentee after: TIANHE FU'AO AUTO SAFETY SYSTEM (CHANGCHUN) Co.,Ltd. Address before: 230000 Room 203, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee before: Hefei Jiuzhou Longteng scientific and technological achievement transformation Co.,Ltd. |