CN2654449Y - Electric igniting pipe for safety gas bag gas generator - Google Patents
Electric igniting pipe for safety gas bag gas generator Download PDFInfo
- Publication number
- CN2654449Y CN2654449Y CNU2003201097586U CN200320109758U CN2654449Y CN 2654449 Y CN2654449 Y CN 2654449Y CN U2003201097586 U CNU2003201097586 U CN U2003201097586U CN 200320109758 U CN200320109758 U CN 200320109758U CN 2654449 Y CN2654449 Y CN 2654449Y
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- electrode plug
- igniter
- air
- squib
- electrode
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Abstract
The utility model discloses an electricity igniter squib used for a gas generator, which comprises an electrode plug, a box, a shell and an assembling back crimp of ignition powder, wherein the electrode plug is formed by injecting a gilded core electrode and anti-static materials into a whole, and is with a resistance electrical conductor in a designed volume, therefore the electrode plug forms an electric channel and can effectively discharge a plurality of stray currents and static on the electricity igniter squib. The utility model has the advantages of good performance, safe usage, rational structure, convenient process and operation and low cost, and the device is suitable for mass produce and a plurality of air bag systems of electricity igniter squib.
Description
Technical field
The utility model belongs to priming system design and manufacturing technology field, relates to a kind of propulsion source, particularly a kind of air-cushion inflator squib of power actuated vehicle use.
Background technology
The yearly output of present all kinds of cars is above 1,000,000.This has brought life for the development of automobile safety system, be widely used from collision avoidance system (as safe automobile air bag, belt pretensioner arrangement), the gas generator that adopts in the collision avoidance system also is familiar with by people gradually with squib and is paid attention to, the existing automotive safety gas generator squib patent application of Britain in external 1994, the patent No. is 2281608.Domestic subsequently producer also in safe automobile air bag in 1997 with squib by technical evaluation, and apply for a patent, the patent No. is ZL98232456.1, certificate number is 330365.Have weak point as complex process by producing this squib, manufacturability is bad, and inconvenient operation, the final molding of product also need be carried out plastic, have certain potential safety hazard when plastic, and cost is higher.Influenced the competitive power of gas generator greatly.
Summary of the invention
The purpose of this utility model is, the air-cushion inflator squib that a kind of safety is good, can prevent the interference of various stray currents, static effectively is provided.
The applicant is by consulting data at home and abroad, and with reference to corresponding sample, it is low therefrom to optimize cost, good manufacturability, easy to operate a kind of new structure squib.New construction squib characteristics are improved electrode plug, have made things convenient for the operation of weldering bridge technology, and have improved work efficiency.
Realize that the technical scheme that above-mentioned purpose is taked is, the air-cushion inflator squib comprises that a profile is the electrode plug of step and the housing of a band flash hole, is characterized in that electrode plug is made up of two core electrodes and antistatic material; Two core electrodes feed the glowing filament that ends in the electrode plug are connected with certain resistance value, and on glowing filament dipping igniter and igniter, constitute the electrode plug of band medicine head; The electrode plug of band medicine head is provided with the medicine box that starting mix is housed in, and medicine box is assembled together with the electrode plug of band medicine head, and on medicine box the suit housing, sealing ring is installed in tight mouthful of back of housing.
Some other characteristics of the present utility model are that described electrode plug is by two core electrodes and antistatic material injection moulding all-in-one-piece electric conductor.
Described antistatic material can be that conduction engineering plastic or conductive rubber dissolve the electric conductor of formation together with insulating material.
The described igniter of medicine head and the starting mix direct contact of medicine box bulk powder charge when wherein being assembled together with the electrode plug of medicine head and medicine box.
Behind the igniter and igniter of dipping, can be coated with one deck damp-proof paint in addition on the described glowing filament.
Described core electrode adopts fernico to make, and surface gold-plating is handled, and two core electrode symmetries are inserted in the antistatic material.
Flash hole on the described housing is 3, and rectangular distribution.
The utility model is owing to adopted by two core electrodes and antistatic material injection moulding all-in-one-piece conductive electrode plug, and it can guarantee the safe handling of power actuated vehicle, and can prevent the interference of various stray currents, static effectively.
Description of drawings
Fig. 1 is a section of structure of the present utility model;
Fig. 2 is the cutaway view of electrode plug assembly of the present utility model;
Fig. 3 is the birds-eye view of electrode plug assembly of the present utility model;
Fig. 4 is the electric firing part cutaway view of electrode plug assembly of the present utility model.
Symbol is represented among the figure: 1, electrode plug 2, core electrode 3, antistatic material 4, glowing filament 5, igniter (lead trinitroresorcinate) 6, igniter (No. 1 igniter) 7, medicine box 8, starting mix (No. 3 igniters) 9, housing 10, sealing ring 11, damp-proof paint
The specific embodiment
The embodiment that provides below in conjunction with accompanying drawing and contriver is described in further detail explanation to the utility model.
Referring to Fig. 1, according to technical scheme of the present invention, the air-cushion inflator squib comprises an electrode plug 1, and electrode plug is made up of two core electrodes 2 and antistatic material 3; Core electrode 2 feeds the glowing filament 4 that the interior end of electrode plug connects certain resistance value, and on glowing filament, dip in igniter 5 and igniter 6, igniter 5 adopts lead trinitroresorcinate, directly be coated on the glowing filament, igniter 6 adopts No. 1 igniter, be coated on the outside of igniter 5, the dress bulk powder charge is that starting mix 8 is assembled together with the electrode plug of being with the medicine head in the medicine box 7, and starting mix 8 adopts No. 3 igniters; Loading onto sealing ring 10 behind the cover upper shell 9 tight mouths forms.
Electrode plug is by two core electrodes and antistatic material injection moulding all-in-one-piece electric conductor.Conductive material can be that conduction engineering plastic or conductive rubber and insulating material dissolve electric conductor together.
The igniter of medicine head and the starting mix direct contact of medicine box bulk powder charge are convenient to light when wherein being assembled together with the electrode plug of medicine head and medicine box.
The air-cushion inflator squib of said structure is owing to fabrication cycle is shortened in the simplification of technology.Its manufacture craft is good, and is easy to operate, and charge constitution has substituted former slugging with bulk powder charge in the medicine box, reduced links such as the pressing powder technology of former squib and tablet assembling thereof.Thereby the design of the squib of new construction is more reasonable, and manufacturability is better, and cost is lower, is fit to produce in enormous quantities, satisfies the use of multiple gases producer.
This air-cushion inflator has following three characteristics with squib:
1. igniter 5 adopts lead trinitroresorcinate, directly is coated on the scorching hot bridge silk, makes ignition tube that sensitivity height, the short characteristic of in-service time be arranged, but the in-service time≤2ms of guarantee point fire tube.
2. igniter 6 adopts No. 1 igniter, be coated on the outside of igniter 5, make ignition tube not only have the sensitivity height, the feature that in-service time is short, and make it possess the output length of flame and the strong characteristics of ignition ability simultaneously again, thereby the igniting reliability and the time consistency of guarantee point fire tube.
3. the medicament on it is got angry, and the starting mix in the medicine box that then ignites (No. 3 igniters), starting mix are got angry back flame by spreading out of in three that reserve on the housing and uniform flash holes, and the small arms propellant in the outer pipe shell of igniting makes the small arms propellant burning.
Below be the embodiment that the contriver provides, but be not limited to these embodiment.
Embodiment 1:
With reference to Fig. 1, the size of housing can be determined by the interface size of gas generator.Housing selects for use the metallic material punching out to form, and the agent of medicine box pine dress starting mix is an igniter commonly used, is the compound of lead ferrocyanide and potassium perchlorate.
With reference to Fig. 2, Fig. 3, Fig. 4, electrode plug is to be injection molded into one by conductive engineering plastics and core electrode, and at electrode plug and medicine box assembling end, core electrode exposes outside 3.1mm, and being used to weld glowing filament should have certain resistance.Dipping in igniter 5 and igniter 6 on the glowing filament, igniter 5 adopts lead trinitroresorcinate, and igniter 6 adopts No. 1 igniter, is coated with damp-proof paint 11 outward.The profile of electrode plug is a step, dips in the medicine-feeding head again, after being coated with damp-proof paint outward and finishing with the medicine box assembling, the cover upper shell, the external diameter of medicine box forms mechanical the cooperation with the internal diameter of housing.Core electrode adopts fernico to make, and surface gold-plating is handled, and two core electrode symmetries are inserted in the conductive engineering plastics.
With the electrode plug that suppresses, welding doube bridge formula glowing filament on two core electrodes, glowing filament adopts the redray silk, and its resistance is about 2.0 Ω.The ignition powder that dips on the glowing filament (5) for lead trinitroresorcinate as first burster, the compound that to be coated on ignition powder (6) on the lead trinitroresorcinate and to be No. 1 igniter be lead thiocyanate, potassium chlorate and plumbous chromate.
The electric firing part (referring to Fig. 4, Fig. 1) that has dipped in the medicine head is assembled together with the medicine box that the starting mix agent of bulk powder charge is housed, and tight mouthful of cover upper shell puts sealing ring behind the tight mouth and is coated with sealant outward.
According to the gas generator squib of such scheme preparation, at 5cm
3The applied pressure/in-service time of leakproof tank greater than 2.75MPa/3ms, to 25kV, series resistance 5k Ω discharges to this squib, can satisfy the combustion miss requirement with the 500pF charge of a capacitor.
Embodiment 2:
Different is the manufacturing of electrode plug for present embodiment and embodiment 1, is to use conductive engineering plastics and core electrode to be injection molded into one, has the resistance of certain volume.All the other are with embodiment 1.
Embodiment 3:
Different is the manufacturing of electrode plug for present embodiment and embodiment 1, and promptly conductive engineering plastics is to use conductive material and insulating material to be melted in one, and the resistance of certain volume is arranged.All the other are with embodiment 1.
Embodiment 4:
Different is that medicine box adopts the high-density polyethylene resin pressure injection to form for present embodiment and embodiment 1.Housing is formed by the brass band punching out, and plating nickel on surface is handled.During the two assembling, the inwall of housing and the outer wall of medicine box are close together.All the other are with embodiment 1.
Air-cushion inflator squib of the present utility model, its electrode plug makes electrode plug form conductive channel by core electrode and conductive material injection moulding all-in-one-piece electric conductor, can release effectively to be attached to various stray currents, static on the squib.Can prevent the misoperation that the motor vehicle safety air bag produces, light gas generator reliably between again can be when needed.This squib is rational in infrastructure, convenient production process operation, and cost is low, is fit to produce in enormous quantities.
Claims (7)
1. air-cushion inflator squib, comprise that a profile is the electrode plug [1] of step and the housing [9] of a band flash hole, it is characterized in that, electrode plug [1] is made up of two core electrodes [2] and antistatic material [3], two core electrodes [2] feed the glowing filament [4] that the interior end of electrode plug is connected with certain resistance value, and on glowing filament [4] dipping igniter [5] and igniter [6] successively, constitute the electrode plug of band medicine head; Be with the electrode plug of medicine head to be provided with the medicine box [7] that starting mix [8] are housed in, medicine box [7] is assembled together with the electrode plug of band medicine head, and goes up suit housing [9] at medicine box [7], to behind the tight mouth of housing [9] sealing ring [10] being installed.
2. air-cushion inflator squib as claimed in claim 1 is characterized in that, described electrode plug [1] is by two core electrodes [2] and antistatic material [3] injection moulding all-in-one-piece electric conductor.
3. air-cushion inflator squib as claimed in claim 1 or 2 is characterized in that, described antistatic material [3] can be that conductive engineering plastics or conductive rubber and insulating material dissolve the electric conductor that together constitutes.
4. air-cushion inflator squib as claimed in claim 1 is characterized in that, the igniter [6] of the electrode plug of described band medicine head and medicine box [7] medicine head when being assembled together and starting mix [8] direct contact of medicine box bulk powder charge.
5. air-cushion inflator squib as claimed in claim 1 is characterized in that, behind igniter of dipping [5] and the igniter [6], can be coated with one deck damp-proof paint [11] in addition on the described glowing filament.
6. air-cushion inflator squib as claimed in claim 1 is characterized in that, described core electrode [2] adopts fernico to make, and surface gold-plating is handled, and two core electrodes [2] symmetry is inserted in the antistatic material [3].
7. air-cushion inflator squib as claimed in claim 1 is characterized in that, the flash hole on the described housing [9] is 3, and rectangular distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201097586U CN2654449Y (en) | 2003-11-13 | 2003-11-13 | Electric igniting pipe for safety gas bag gas generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201097586U CN2654449Y (en) | 2003-11-13 | 2003-11-13 | Electric igniting pipe for safety gas bag gas generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2654449Y true CN2654449Y (en) | 2004-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2003201097586U Expired - Fee Related CN2654449Y (en) | 2003-11-13 | 2003-11-13 | Electric igniting pipe for safety gas bag gas generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2654449Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100497049C (en) * | 2006-12-01 | 2009-06-10 | 中国工程物理研究院电子工程研究所 | Igniter for safety air bag |
| CN101121396B (en) * | 2006-08-09 | 2010-05-12 | 比亚迪股份有限公司 | Electric ignition pipe for gas generator and its ignition method |
| CN101975534A (en) * | 2010-05-17 | 2011-02-16 | 中国兵器工业第二一三研究所 | Insensitive electric igniter for nuclear blast valve |
| CN110772729A (en) * | 2019-12-04 | 2020-02-11 | 湖南神斧集团向红机械化工有限责任公司 | Automatic fire-fighting equipment power consumption starting drive |
-
2003
- 2003-11-13 CN CNU2003201097586U patent/CN2654449Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101121396B (en) * | 2006-08-09 | 2010-05-12 | 比亚迪股份有限公司 | Electric ignition pipe for gas generator and its ignition method |
| CN100497049C (en) * | 2006-12-01 | 2009-06-10 | 中国工程物理研究院电子工程研究所 | Igniter for safety air bag |
| CN101975534A (en) * | 2010-05-17 | 2011-02-16 | 中国兵器工业第二一三研究所 | Insensitive electric igniter for nuclear blast valve |
| CN101975534B (en) * | 2010-05-17 | 2015-04-01 | 中国兵器工业第二一三研究所 | Insensitive electric igniter for nuclear blast valve |
| CN110772729A (en) * | 2019-12-04 | 2020-02-11 | 湖南神斧集团向红机械化工有限责任公司 | Automatic fire-fighting equipment power consumption starting drive |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XI AN NORTH QINGHUA ELECTROMECHANICAL GROUP CO.,L Free format text: FORMER OWNER: BEIFANG QINGHUA ELECTRICAL APPLIANCE (GROUP) CO. LTD., XI AN Effective date: 20060721 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20060721 Address after: 710025, 1 East Wang Tian street, Xi'an City, Shaanxi Province Patentee after: Xi'an Beifang Qinghua Electromechanical Group Co., Ltd. Address before: 710025, 1 East Wang Tian street, Xi'an City, Shaanxi Province Patentee before: Xian Beifang Qinghua electric appliance (Group) Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041110 Termination date: 20121113 |