CN112356800A - High-temperature auto-ignition safety airbag igniter, built-in ignition powder and preparation method - Google Patents
High-temperature auto-ignition safety airbag igniter, built-in ignition powder and preparation method Download PDFInfo
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- CN112356800A CN112356800A CN202011239513.XA CN202011239513A CN112356800A CN 112356800 A CN112356800 A CN 112356800A CN 202011239513 A CN202011239513 A CN 202011239513A CN 112356800 A CN112356800 A CN 112356800A
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- tube shell
- electrode plug
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- igniter
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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
- B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
- B60R21/264—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic
- B60R21/2644—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic using only solid reacting substances, e.g. pellets, powder
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- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
- C06B21/0008—Compounding the ingredient
- C06B21/0016—Compounding the ingredient the ingredient being nitrocellulose or oranitro cellulose based propellant; Working up; gelatinising; stabilising
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- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
- C06B21/0008—Compounding the ingredient
- C06B21/0025—Compounding the ingredient the ingredient being a polymer bonded explosive or thermic component
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
- C06B21/0033—Shaping the mixture
- C06B21/0066—Shaping the mixture by granulation, e.g. flaking
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- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
- C06B21/0083—Treatment of solid structures, e.g. for coating or impregnating with a modifier
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- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B29/00—Compositions containing an inorganic oxygen-halogen salt, e.g. chlorate, perchlorate
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- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B29/00—Compositions containing an inorganic oxygen-halogen salt, e.g. chlorate, perchlorate
- C06B29/22—Compositions containing an inorganic oxygen-halogen salt, e.g. chlorate, perchlorate the salt being ammonium perchlorate
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Air Bags (AREA)
Abstract
The invention discloses a high-temperature automatic ignition safety airbag ignition device, which comprises a tube shell and an electrode plug, wherein the electrode plug is arranged on the tube shell; the electrode plug is pressed into the tube shell and then welded and sealed; the plastic sleeve is sleeved outside the tube shell, and the plastic sleeve, the tube shell and the electrode plug are coated by the injection molding body; the space formed by the tube shell and the electrode plug is filled with automatic ignition powder; one end of the electrode plug, which is contacted with the automatic ignition powder, is connected with a bridge wire. The safety air bag igniter can also reduce or avoid the use of an automatic ignition explosive package or tablet in an air generating chamber or a fire transferring chamber of the safety air bag, is convenient to assemble, and enables the design of the safety air bag to be more compact. In addition, the automatic ignition powder can resist the aging of AKLV-16 at 107 ℃ for 408h and 120 ℃ for 100h and can still realize automatic ignition.
Description
Technical Field
The invention belongs to the technical field of safety airbag ignition devices, and relates to a high-temperature automatic ignition safety airbag ignition tool, ignition powder filled in the ignition tool, and a preparation method of the ignition powder.
Background
The safety air bag is used as an important component of a passive safety system of an automobile, and can be activated by an electric signal when the automobile is collided, so that the safety of passengers in the collision process is protected.
However, when the temperature rises due to high temperature such as external fire, the gas generator is abnormally burned, the strength of the generator case is lowered, and severe combustion or even explosion may occur. The shell will break and fly away at a rapid rate, increasing the risk during use.
The currently adopted method is to add an auto-ignition material (also called auto-ignition charge) to activate the airbag before the strength of the material is not attenuated. The specific implementation is as follows: 1. a special self-igniting charge chamber is provided in the airbag housing, and in the event of exposure to high temperatures, heat is conducted by the housing to the charge patch, ultimately activating the generator. The design has to arrange an automatic ignition chamber on the shell, which makes the assembly complicated. 2. An automatic ignition powder charge bag or tablet is added in the powder transfer or gas generation chamber and is activated by the heat transfer of the shell and the internal gas, but the lag phase of automatic ignition is longer because the heat transfer rate of the air is slower.
Disclosure of Invention
The invention aims to provide a high-temperature automatic ignition safety airbag igniter, a built-in ignition powder and a preparation method, and solves the problems that an automatic ignition powder chamber is arranged on a shell, the assembly is complicated, and the ignition delay period exists in the prior art.
The technical scheme adopted by the invention is that the high-temperature automatic ignition safety air bag igniter comprises a tube shell and an electrode plug; the electrode plug is pressed into the tube shell and then welded and sealed; the plastic sleeve is sleeved outside the tube shell, and the plastic sleeve, the tube shell and the electrode plug are coated by the injection molding body; the space formed by the tube shell and the electrode plug is filled with automatic ignition powder; one end of the electrode plug, which is contacted with the automatic ignition powder, is connected with a bridge wire.
The inner wall of the tube shell, which is contacted with the automatic ignition powder, is also coated with an automatic ignition powder thin layer.
The bridge wire is a metal resistance wire or a semiconductor bridge wire.
The electrode plug is a plastic or glass sintered type electrode plug.
A built-in ignition powder for filling the igniter; comprises 50-80% of oxidant, 10-50% of combustible agent, 0.5-5% of stabilizer and 1-5% of adhesive, wherein the sum of all the components is 100%.
The stabilizer is one or more of molybdenum oxide, magnesium oxide, copper oxide, zinc oxide and calcium oxide, and the particle size of the stabilizer is 0.3-1 mu m.
The oxidant is one or more of chlorate and perchlorate, and the granularity of the oxidant is 10-200 mu m.
The combustible agent is an organic matter, preferably one or more of sucrose, lactose, glucose, powdered cellulose, dextrin and wood powder, and has a particle size of 10-200 μm.
The binder is one or more of nitrocotton, fluororubber, silicone rubber, butyl rubber, polyurethane resin, polyester and acrylic resin.
The invention is also characterized in that:
a method for preparing ignition powder in the container comprises mixing the components of the ignition powder to obtain mixture; if the coating is selected to be coated on the tube shell, the mixture is turbid liquid, and if the coating is pressed, the mixture is granulated, screened and dried.
The invention has the beneficial effects that:
the high-temperature automatic ignition safety airbag igniter is activated by current under the condition of normal collision. In case of high temperature such as fire, heat transfer through the shell is activated. The safety air bag igniter can also reduce or avoid the use of an automatic ignition explosive package or tablet in an air generating chamber or a fire transferring chamber of the safety air bag, is convenient to assemble, and enables the design of the safety air bag to be more compact. In addition, the automatic ignition powder can resist the aging of AKLV-16 at 107 ℃ for 408h and 120 ℃ for 100h and can still realize automatic ignition.
Drawings
FIG. 1 is a first cross-sectional view of a high temperature auto-ignition airbag igniter of the invention;
FIG. 2 is a second cross-sectional view of the high temperature auto-ignition airbag igniter of the present invention;
FIG. 3 is a schematic diagram of a high temperature auto-ignition airbag igniter pressure test system of the present invention;
FIG. 4 is a schematic diagram of an automatic ignition test system for a high temperature auto-ignition airbag igniter of the present invention;
in the figure: 1. the electrode comprises an electrode plug, 2 parts of an injection molding body, 3 parts of a tube shell, 4 parts of a bridge wire, 5 parts of an automatic ignition powder, 6 parts of a plastic sleeve, 7 parts of an automatic ignition powder thin layer, 8 parts of an igniter, 9 parts of a connecting sleeve I, 10 parts of a body I, 11 parts of a pressure sensor, 12 parts of a connecting sleeve II, 13 parts of a body II, 14 parts of a temperature sensor and 15 parts of a heating plate.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-2, an ignition device for a high-temperature auto-ignition airbag comprises a tube shell 3 and an electrode plug 1; the electrode plug 1 is pressed into the tube shell 3 and then welded and sealed, and can be laser welding or friction welding; the plastic sleeve 6 is sleeved outside the tube shell 3, and the plastic sleeve 6, the tube shell 3 and the electrode plug 1 are coated by the injection molding body 2; an automatic ignition charge 5 is filled in a space formed by the tube shell 3 and the electrode plug 1; one end of the electrode plug 1, which is contacted with the automatic ignition powder 5, is connected with a bridge wire 4.
The inner wall of the tube case 3 contacting the autoignition powder 5 is also coated with a thin layer 7 of autoignition powder.
The bridge wire 4 is a metal resistance wire or a semiconductor bridge wire.
The electrode plug 1 is a plastic or glass sintered type electrode plug.
A built-in ignition powder for filling the igniter; comprises 50-80% of oxidant, 10-50% of combustible agent, 0.5-5% of stabilizer (more than 5% of spontaneous combustion effect is affected, less than 0.5% of stabilizer can not meet the aging requirement, preferably 0.5-4%) and 1-5% of adhesive, wherein the sum of all the components is 100%, and internal heat ignition at 160-220 ℃ can be realized.
The stabilizer is one or more of molybdenum oxide, magnesium oxide, copper oxide, zinc oxide and calcium oxide, the particle size of the stabilizer is 0.3-1 mu m, the particle size is small, better contact between the agents can be realized, and the anti-aging and stabilizing effects are realized.
The oxidant is one or more of chlorate and perchlorate, the granularity of the oxidant is 10-200 mu m, the oxidant is difficult to process when the granularity is less than 10 mu m, the oxidant is not beneficial to automatic ignition when the granularity is more than 200 mu m, and the oxidant is preferably 10-50 mu m.
The combustible agent is an organic matter, preferably one or more of sucrose, lactose, glucose, powdered cellulose, dextrin and wood powder, has a particle size of 10-200 mu m, is difficult to process when the particle size is less than 10 mu m, is not beneficial to automatic ignition when the particle size is more than 200 mu m, and is preferably 10-50 mu m.
The binder is one or more of nitrocotton, fluororubber, silicone rubber, butyl rubber, polyurethane resin, polyester and acrylic resin.
A method for preparing ignition powder in the container comprises mixing the components of the ignition powder to obtain mixture; if the coating is selected to be coated on the tube shell, the mixture is turbid liquid, and if the coating is pressed, the mixture is granulated, screened and dried.
Examples 1 to 3
The preparation method of the ignition charge comprises the following steps: respectively mixing light magnesium oxide micropowder (D) with mass fraction of 2% and 1%50Less than 0.001mm) and potassium chlorate with the mass fraction of 71 percent (A)Latin reagent processed to the granularity D50 not more than 20 μm) and glucose with the mass fraction of 26% (traditional Chinese medicine reagent processed to the granularity D50 not more than 20 μm) are mixed. Observing the coating condition of potassium chlorate and magnesium oxide on the surface of glucose by a microscope, and adding a silicon rubber solution with the mass concentration of 0.16g/ml to ensure that the mass percentage of the binder is 3 percent. After being uniformly mixed, the mixture is granulated by using a sieve CQ-9 silk sieve, and the CQ-9 and the CQ-25 are taken out of the sieve after being aired for 5min, thus obtaining the ignition powder of the invention;
the igniter was assembled in 15 pieces as follows: as shown in fig. 2, 36mg of the autoignition charge 7 is weighed out and pressed into the envelope 3 by press-fitting. Then 130mg of ignition powder 5 (zirconium powder potassium perchlorate ignition powder) is weighed and pressed into the tube shell 3 in a press-fitting mode, the electrode plug 1 welded with the bridgewire 4 is pressed into the tube shell, the electrode plug 1 and the tube shell 3 are connected by laser welding, the plastic sleeve 6 is sleeved outside the tube shell 4, and the injection molding body 2 is formed by injection molding in a mold. The 10 igniters are randomly divided into two groups to carry out high-temperature aging tests of 107 ℃/408h and 120 ℃/100h respectively.
Comparative examples 1 to 3
The preparation method of the ignition charge contained in the comparative example is as follows: mixing 73% of potassium chlorate (an alatin reagent processed to a granularity D50 of less than or equal to 20 mu m) and 27% of glucose (a traditional Chinese medicine reagent processed to a granularity D50 of less than or equal to 20 mu m), and adding a silicon rubber solution with the mass concentration of 0.16g/ml to ensure that the mass percentage of the binder is 3%. After being mixed evenly, the mixture is granulated by using a sieve CQ-9 silk sieve, and after being aired for 5min, the CQ-9 and CQ-25 sieve intermediate products are taken, thus obtaining the ignition powder of the invention.
The igniter was assembled 15 shots each in such a manner that 36mg of the autoignition charge 7 weighed out as shown in fig. 2 was pressed into the envelope 3 by press-fitting. Then 130mg of ignition powder 5 (zirconium powder potassium perchlorate ignition powder) is weighed and pressed into the tube shell 3 in a press-fitting mode, the electrode plug 1 welded with the bridgewire 4 is pressed into the tube shell 3, the electrode plug 1 and the tube shell 3 are connected by laser welding, the plastic sleeve 6 is sleeved outside the tube shell 4, and the injection molding body 2 is formed by injection molding in a mold. Randomly dividing 20 igniters into two groups to respectively carry out 107 ℃/408h and 120 ℃/100h high-temperature aging tests.
Comparative examples 4 to 6
The igniters of comparative examples 4-6 were assembled in the following manner for 15 shots: only 130mg of ignition powder 5 (zirconium powder potassium perchlorate ignition powder) is assembled in the igniter and pressed into the tube shell 3 in a press-fitting mode, the electrode plug 1 welded with the bridgewire 4 is pressed into the tube shell, the electrode plug and the tube shell are connected by laser welding, the plastic sleeve 6 is sleeved outside the tube shell 4, and the injection molding body 2 is formed by injection molding in a mold. The 10 igniters are randomly divided into two groups to carry out high-temperature aging tests of 107 ℃/408h and 120 ℃/100h respectively.
The ignition charge pressure time test was carried out in the manner shown in fig. 3, and the test container was a closed explosion device composed of a connecting sleeve 9 and a body I10, and had an internal volume of 10 ml. The igniter 8 is fitted and the terminals of the pressure sensor 11 are connected to a measuring oscilloscope. The igniter 8 is activated using a constant current source of 1.75A/0.5 ms. The start-up time t (mSec.) and the maximum generated pressure p (psi), the time interval from the flow of current through the electric igniter to the start of pressure increase, are measured, and the results of the tests conducted and comparative examples are shown in table 1.
TABLE 1
The automatic ignition test of the igniter was performed in the manner shown in fig. 4, the lower heating source 15 was a heating plate with a power of 2000W, and the test container consisting of the connecting sleeve II12 and the body II13 and having an internal volume of 10ml was placed on the heating plate. A through hole is arranged on the connecting sleeve II12 and the body II13, and the temperature sensor 14 can be placed in the through hole and is contacted with the shell of the ignition device. And (5) turning on a power supply of the heating plate, and collecting the temperature change on the surface of the tube shell 3 by using dynamic temperature collecting equipment. When the heated igniter 8 is activated, a sudden change in temperature can be observed in the temperature acquisition device, which is defined as the excitation temperature of the igniter, and the time from room temperature to activation is read. The test results of the examples and comparative examples are shown in table 2.
TABLE 2
The implementation result shows that the automatic ignition powder and the assembled product prepared by the way of the embodiment have the pressure value of a normal igniter compared with the igniter in the comparative example, and still have the automatic ignition function after being aged at 107 ℃/408h and 120 ℃/100h, and the functions are not greatly changed.
Examples 4 to 6
The autoignition powder was prepared as in examples 1-3. The igniter was assembled in 15 pieces each in the following manner: as shown in fig. 2, 36mg of the autoignition charge 7 is weighed out and pressed into the envelope 3 by press-fitting. Then pressing 180mg of ignition powder 5 (zirconium powder tungsten powder potassium perchlorate ignition powder) into the tube shell 3 in a press-fitting mode, press-fitting the electrode plug 1 welded with the bridge wire 4 into the tube shell 3, connecting the electrode plug 1 and the tube shell 3 by using laser welding, sleeving the plastic sleeve 6 outside the tube shell 4, and injection-molding the plastic sleeve into the injection-molded body 2 in a mold. The 10 igniters are randomly divided into two groups to carry out high-temperature aging tests of 107 ℃/408h and 120 ℃/100h respectively.
Comparative examples 7 to 9
The autoignition powder was prepared as in comparative examples 1 to 3. The igniter was assembled in 15 pieces each in the following manner: as shown in fig. 2, 36mg of the autoignition charge 7 is weighed out and pressed into the envelope 3 by press-fitting. Then pressing 180mg of ignition powder 5 (zirconium powder tungsten powder potassium perchlorate ignition powder) into the tube shell 3 in a press fitting mode, press fitting the electrode plug 1 welded with the bridgewire 4 into the tube shell 3, connecting the electrode plug 1 with the tube shell 3 by laser welding, sleeving the plastic sleeve 6 outside the tube shell 4, and injection molding the plastic sleeve into the injection molded body 2 in a mold. The 10 igniters are randomly divided into two groups to carry out high-temperature aging tests of 107 ℃/408h and 120 ℃/100h respectively. The ignition function test and the automatic ignition test of the automatic ignition powder igniter are shown in tables 3 and 4 respectively.
Comparative examples 10 to 12
The igniters of comparative examples 4-6 were assembled in the following manner for 15 shots: only 180mg of ignition powder 5 (zirconium powder tungsten powder potassium perchlorate ignition powder) is assembled in the igniter and pressed into the tube shell 3 in a press-fitting mode, the electrode plug 1 welded with the bridge wire 4 is pressed into the tube shell, the electrode plug 1 and the tube shell 3 are connected by laser welding, the plastic sleeve 6 is sleeved outside the tube shell 4, and the injection molding body 2 is formed by injection molding in a mold. The 10 igniters are randomly divided into two groups to carry out high-temperature aging tests of 107 ℃/408h and 120 ℃/100h respectively. The testing of the product is the same as the above test method.
The implementation result shows that the automatic ignition powder and the assembled product prepared by the way of the embodiment have the pressure value of a normal igniter, and still have the automatic ignition function after being aged at 107 ℃/408h and 120 ℃/100h, and the functions are not changed greatly, compared with the igniter in the comparative example.
TABLE 3
TABLE 4
Claims (10)
1. An air bag igniter capable of automatically igniting at high temperature is characterized by comprising a tube shell (3) and an electrode plug (1); the electrode plug (1) is pressed into the tube shell (3) and then welded and sealed; the plastic sleeve (6) is sleeved outside the tube shell (3), and the plastic sleeve (6), the tube shell (3) and the electrode plug (1) are coated by the injection molding body (2); an automatic ignition powder (5) is filled in a space formed by the tube shell (3) and the electrode plug (1); one end of the electrode plug (1) which is contacted with the automatic ignition powder (5) is connected with a bridge wire (4).
2. A high temperature auto-ignition airbag igniter as claimed in claim 1, wherein the inner wall of the tube case (3) contacting the auto-ignition charge (5) is further coated with an auto-ignition charge thin layer (7).
3. A high temperature auto-ignition airbag igniter as claimed in claim 1, wherein the bridge wire (4) is a metallic resistance wire or a semiconductor bridge wire.
4. A high temperature auto-ignition airbag igniter as defined in claim 1 wherein the electrode plug (1) is a plastic or glass sintered type electrode plug.
5. A charge containing ignition charge for charging an igniter of claims 1-2; comprises 50-80% of oxidant, 10-50% of combustible agent, 0.5-5% of stabilizer and 1-5% of adhesive, wherein the sum of all the components is 100%.
6. The ignition charge as recited in claim 5, wherein said stabilizer is one or more of molybdenum oxide, magnesium oxide, copper oxide, zinc oxide, calcium oxide, and the stabilizer particle size is 0.3 to 1 μm.
7. The ignition charge contained in claim 5, wherein the oxidizer is one or more of chlorate and perchlorate, and the oxidizer has a particle size of 10 to 200 μm.
8. The ignition charge containing inside of claim 5, wherein the combustible agent is an organic substance, preferably one or more of sucrose, lactose, glucose, powdered cellulose, dextrin and wood flour, and the particle size of the combustible agent is 10-200 μm.
9. The ignition charge as recited in claim 5, wherein said binder is one or more of nitrocellulose, fluororubber, silicone rubber, butyl rubber, urethane resin, polyester, and acrylic resin.
10. A method for preparing a self-contained ignition charge, characterized in that the components of the self-contained ignition charge according to claims 5-9 are mixed to obtain a mixture; if the coating is selected to be coated on the tube shell, the mixture is turbid liquid, and if the coating is pressed, the mixture is granulated, screened and dried.
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| CN202011239513.XA CN112356800A (en) | 2020-11-09 | 2020-11-09 | High-temperature auto-ignition safety airbag igniter, built-in ignition powder and preparation method |
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| CN202011239513.XA CN112356800A (en) | 2020-11-09 | 2020-11-09 | High-temperature auto-ignition safety airbag igniter, built-in ignition powder and preparation method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101157589A (en) * | 2006-10-07 | 2008-04-09 | 上海东方久乐汽车安全气囊有限公司 | Gas production drug for automobile safety airbag gas generator and process for manufacturing same |
| CN102092356A (en) * | 2010-12-31 | 2011-06-15 | 上海东方久乐汽车安全气囊有限公司 | Electric igniter for automobile air bag restraint system |
| CN202243321U (en) * | 2011-09-26 | 2012-05-30 | 陕西庆华汽车安全***有限公司 | Electric ignition tube for micro gas generator |
| CN105777458A (en) * | 2014-12-26 | 2016-07-20 | 比亚迪股份有限公司 | Automatic ignition powder for gas generator of air bag restraint system of automobile and preparation method of automatic ignition powder |
-
2020
- 2020-11-09 CN CN202011239513.XA patent/CN112356800A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101157589A (en) * | 2006-10-07 | 2008-04-09 | 上海东方久乐汽车安全气囊有限公司 | Gas production drug for automobile safety airbag gas generator and process for manufacturing same |
| CN102092356A (en) * | 2010-12-31 | 2011-06-15 | 上海东方久乐汽车安全气囊有限公司 | Electric igniter for automobile air bag restraint system |
| CN202243321U (en) * | 2011-09-26 | 2012-05-30 | 陕西庆华汽车安全***有限公司 | Electric ignition tube for micro gas generator |
| CN105777458A (en) * | 2014-12-26 | 2016-07-20 | 比亚迪股份有限公司 | Automatic ignition powder for gas generator of air bag restraint system of automobile and preparation method of automatic ignition powder |
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Application publication date: 20210212 |