CN200951746Y - Electric igniting apparatus igniting parts and electric igniting pipe containing said parts catching fire igniting - Google Patents
Electric igniting apparatus igniting parts and electric igniting pipe containing said parts catching fire igniting Download PDFInfo
- Publication number
- CN200951746Y CN200951746Y CN 200620138677 CN200620138677U CN200951746Y CN 200951746 Y CN200951746 Y CN 200951746Y CN 200620138677 CN200620138677 CN 200620138677 CN 200620138677 U CN200620138677 U CN 200620138677U CN 200951746 Y CN200951746 Y CN 200951746Y
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- bridge silk
- conductive layer
- ignition
- electrically connected
- squib
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Abstract
The utility model discloses an igniter for electric ignition device and an electric ignition tube including the igniter. The igniter comprises at least two core electrodes (1), and a bridge wire (9). The electric ignition tube further comprises a conductive connector, which includes an insulator (11) and at least two sheets of conductive layers (10) insulated from each other on the surface of the insulator (11). At least two sheets of the at least two sheets of conductive sheets (10) insulated from each other are electrically connected with the two core electrodes (1) respectively, and the conductive layers (10) in electrical connection with the core electrodes (1) are electrically connected to both ends of the bridge wire (9) respectively. The igniter overcomes the problems of point-contact bridge wire welding in prior art such as the large possibility of occurrence of cold welding and false welding, and significantly improves the reliability of the electric ignition tube.
Description
Technical field
The utility model relates to a kind of ignition device, specifically, relates to a kind of ignition part and the squib that comprises this ignition part of electric ignition device.
Background technology
Squib has obtained using widely on automobile, has all used squib in the mechanisms such as safety air bag, safety belt pretensioner, emergency-off and warning device.Squib is the initial ignition device in these mechanisms, and can squib directly determine the function of these mechanisms bring into play by predetermined imagination normal operation.
Patent documentation CN2654449Y discloses a kind of air-cushion inflator squib, and this squib comprises that a profile is the electrode plug of step and the housing of a band flash hole, and electrode plug is made up of two core electrodes and antistatic material; The ends that two core electrodes feed in the electrode plug are connected with glowing filament (bridge silk), and on glowing filament the dipping 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, to behind tight mouthful of the housing sealing ring is installed.
Initial ignition the element----glowing filament of this squib, all be to be welded on the conductive electrode with scolding tin, because the cross-sectional diameter of conductive electrode is very little generally speaking, so the general diameter of its solder joint (being the contact surface of bridge silk and electrode) is no more than 1.5 millimeters, area of contact is very little, the welding requirements precision is higher, and because bridge silk itself is softer, more crisp factor, in producing fitting process, bridge silk overhanging portion causes tensile deformation excessively to disconnect because of being squeezed easily, cause squib to lose efficacy, and then increased the assembly difficulty of ignition part and ignition tube thereof, reduced capacity rating and made it the production qualification rate lower.In addition, if because of the oxidation of bridge silk or welding operation improper, be easy to produce such as rosin joint, the rack of fusion problem of dry joint etc., cause the resistance of ignition tube that big phenomenon takes place constantly to become in producing and using easily, serious can come off from solder joint at vehicle movement jackshaft silk, cause the squib cisco unity malfunction, thereby make the safety air bag that squib is housed, safety belt pretensioner or other apparatus function lost efficacy, when traffic accident takes place, safety air bag can not opened, safety belt pretensioner also just shrinks not according to time of setting and distance, influenced safety air bag greatly, the safety of safety belt pretensioner or other device, thus cause serious injury to the user.
The utility model content
A purpose of the present utility model is to be easy to generate rack of fusion at existing electric ignition device ignition part, and the shortcoming that reliability is not high provides a kind of high electric ignition device ignition part of phenomenon, reliability that can eliminate rack of fusion.
Another purpose of the present utility model provides the high squib that comprises described ignition part of a kind of reliability.
The electric ignition device ignition part that the utility model provides comprises at least two core electrodes and bridge silk, wherein, this squib also comprises conducting connecting part, this conducting connecting part comprises insulating part and at least two conductive layers of the mutual insulating on insulating part surface, at least two at least two conductive layers of mutual insulating are electrically connected with two core electrodes respectively, and the conductive layer that is electrically connected with core electrode is electrically connected with bridge silk two ends respectively.
The squib that the utility model provides comprises the ignition part, electrode plug and shell, described ignition part comprises at least two core electrodes and bridge silk, described at least two core electrodes insert in the electrode plug, and at least one end of core electrode is exposed at the electrode plug outside, electrode plug matches with shell, core electrode is exposed at the exterior end of electrode plug and is positioned at shell, wherein, this ignition part also comprises conducting connecting part, this conducting connecting part comprises insulating part and at least two conductive layers of the mutual insulating on insulating part surface, at least two at least two conductive layers of mutual insulating are electrically connected with two core electrodes respectively, and the conductive layer that is electrically connected with core electrode is electrically connected with bridge silk two ends respectively.
The ignition part of the electric ignition device that the utility model provides is owing to introduced the bigger conducting connecting part of area of contact, greatly increased the area of welding, make the bridge silk to be electrically connected with conducting connecting part securely, having overcome of the prior art some contact bridge wire bond connects mode and occurs rosin joint, dry joint easily, and the open circuited problem of bridge silk appears, the dangerous phenomenon of having avoided vehicle movement jackshaft silk to come off from solder joint, thus the reliability of electric ignition device improved greatly.In addition, the squib that the utility model provides owing to adopted above-mentioned ignition part, makes that the production fitting process of squib is simple, the capacity rating height, and cost reduces; The more important thing is owing to adopted above-mentioned ignition part, thereby make squib more safe and reliable.
Description of drawings
Fig. 1 is the cross-sectional view of the utility model electric ignition device ignition part;
Fig. 2 is the structural representation of first embodiment of the utility model electric ignition device ignition part;
Fig. 3 is the structural representation of second embodiment of the utility model electric ignition device ignition part;
Fig. 4 is the structural representation of the 3rd embodiment of the utility model electric ignition device ignition part;
Fig. 5 partly cuts open structural representation for an embodiment of the utility model squib;
Fig. 6 is the complete section structural representation of Fig. 5;
Fig. 7 partly cuts open structural representation for another embodiment of the utility model squib;
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the electric ignition device ignition part that the utility model provides comprises at least two core electrodes 1 and bridge silk 9, wherein, this squib also comprises conducting connecting part, this conducting connecting part comprises insulating part 11 and at least two conductive layers 10 of the mutual insulating on insulating part 11 surfaces, at least two at least two conductive layers 10 of mutual insulating are electrically connected with two core electrodes 1 respectively, and the conductive layer 10 that is electrically connected with core electrode 1 is electrically connected with bridge silk 9 two ends respectively.
According to the electric ignition device ignition part that the utility model provides, the effect of insulating part 11 is for conductive layer 10 provides support, and reaches the purpose that makes multi-disc conductive layer 10 mutual insulatings.Insulating part 11 can be bar-shaped, tabular or sheet for various rules or fitfull shape, for being connected of easy to process and convenient and conductive layer, is preferably sheet.
Insulating part 11 can be selected various materials with insulating power for use, and for example glass fibre, pottery, epoxy resin or phenol resin are preferably phenol resin.
The conductive layer 10 of the mutual insulating on insulating part 11 surfaces is at least two, is preferably two or six.
As shown in Figure 2, first embodiment of the ignition part that provides according to the utility model, conductive layer 10 is two, two conductive layers 10 are separately positioned on insulator 11 both sides, and mutual insulating.A slice in two conductive layers 10 is electrically connected with an end of a core electrode 1 and bridge silk 9, and another sheet in two conductive layers 10 is electrically connected with the other end of another one core electrode 1 and bridge silk 9.
As shown in Figure 3, according to second embodiment of ignition part that the utility model provides, conductive layer 10 is the multi-disc greater than two, is preferably six, and these six conductive layers 10 are separately positioned on insulator 11 both sides, and mutual insulating; Two core electrodes 1 respectively with six conductive layers 10 in wherein two be electrically connected, one end of bridge silk 9 is electrically connected with a slice conductive layer 10 that is connected with a core electrode 1, the other end of bridge silk 9 is electrically connected with a slice conductive layer 10 that is connected with another core electrode 1, four conductive layers of residue 10 that the centre portion of bridge silk 9 is electrically connected with discord core electrode 1 are electrically connected, change the length of bridge silk 9 by the 10 different electrical connection combinations of bridge silk 9 and conductive layer, thereby can change the resistance of bridge silk 9.
Insulation between the multi-disc conductive layer 10 can be adopted variety of way, as not contacting mutually between the multi-disc conductive layer 10, perhaps between multi-disc conductive layer 10 insulator is set.
The material of conductive layer 10 can be various materials, and for example, conductive layer 10 can be metallic coating or metallic paper.Because the metallic paper electric conductivity is good, be easy to be fixed on the surface of insulating part 11, therefore, the preferable alloy paper tinsel is as Copper Foil, nickel foil, aluminium foil and/or tinfoil paper.Because Copper Foil is cheap, conduct electricity very well, stable in properties, therefore be preferably Copper Foil.
Described conductive layer 10 is fixed on the surface of insulating part 11, and fixed form can be a variety of way, as can be with conductive layer 10 laminations, bond or be coated in the surface of insulating part 11.
As shown in Figure 2, first embodiment of the ignition part that provides according to the utility model, conductive layer 10 is welded on the conductive layer 10 for the part that the two ends with bridge silk 9 contact with conductive layer 10 with the electric connection mode of bridge silk 9, and solder joint can be for one or more, be preferably a plurality of because a plurality of solder joint can make conductive layer 10 more firm with being connected of bridge silk 9.
As shown in Figure 4, the 3rd embodiment of the ignition part that provides according to the utility model, conductive layer 10 is two, two conductive layers 10 are separately positioned on insulator 11 both sides, and mutual insulating.Conductive layer 10 is that described bridge silk 9 is wrapped on the conductive layer 10 with the electric connection mode of bridge silk 9, and the part that bridge silk 9 contacts with conductive layer 10 is welded on two conductive layers 10.Under the preferable case, bridge silk 9 is by 8 embeddings of scolding tin.Connect with traditional electrical igniting pipe bridge wire bond and to compare, this connection mode makes bridge silk 9 bigger with the area of contact of conductive layer 10, is not easy to produce the problem of rosin joint, dry joint more, improves the reliability of electric ignition device greatly.
Described core electrode 1 is conventionally known to one of skill in the art, and for example, described core electrode 1 can be fernico silk or brass rod.Core electrode 1 is used for spark current is introduced bridge silk 9.The number of core electrode 1 can be 2 or a plurality of, and when two above core electrodes 1, two core electrodes 1 wherein are electrically connected with conductive layer 10, and other core electrode 1 is welded on the conductive layer 10, plays fixedly conducting connecting part.
Electric ignition device that the utility model provides is got angry part can be as the ignition part of various electric ignition devices, as squib, and the ignition part of the squib in safety air bag, safety belt pretensioner, emergency-off or the warning device particularly.
As Fig. 5 and shown in Figure 7, the squib that the utility model provides comprises ignition part, electrode plug 2 and shell 4, the ignition part that described ignition part provides for the utility model.The annexation of ignition part and electrode plug 2 and electrode plug 2 are conventionally known to one of skill in the art with the matching relationship of shell 4.At least two core electrodes 1 of in general getting angry in the part insert in the electrode plug 2, and at least one end of core electrode 1 is exposed at electrode plug 2 outsides, and electrode plug 2 matches with shell 4, and core electrode 1 is exposed at electrode plug 2 exterior ends and is positioned at shell 4.
Wherein, the ignition part is above being described in detail.
Described ignition part preferably is fixed on shell 4 or the electrode plug 2, more preferably is fixed on the electrode plug 2, and fixed form for example, can be injection molded into one for electrode plug 2 and core electrode 1, can make electrode plug 2 like this and get angry the fixing more reliable of part.
Electrode plug 2 effect be the fixing part of getting angry, the shape material of electrode plug 2 is conventionally known to one of skill in the art, for example, the shape of electrode plug 2 should match with shell.Electrode plug 2 can be any insulation and the material that certain intensity is arranged, for example nylon, phenol resin or glass.
Under the preferable case, described shell 4 also comprises flash hole 12, is used for making flame, solid residue to be easy to discharge from shell.The shape of flash hole 12, size, quantity and be conventionally known to one of skill in the art in the position of shell 4, in general, being shaped as of flash hole 12 is circular, square or oval, and bore dia is the 1.5-4 millimeter, quantity is 2-4, at the side rectangular distribution near the shell top.
The material of described shell 4 is conventionally known to one of skill in the art, and for example, described shell 4 is made as brass, aluminium, corrosion-resistant steel or carbon steel by betal can or alloy.The squib that the utility model provides can also comprise seal ring 3, and seal ring 3 is conventionally known to one of skill in the art.Described seal ring 3 is enclosed within the seam outside of electrode plug 2 and outer pipe shell 4.
When described shell 4 comprises flash hole 12, also add one deck lining paper or packing seal on the flash hole 12, expose to avoid medicament.
As shown in Figure 5 and Figure 6, the squib that the utility model provides can also comprise igniter 7, and igniter 7 is evenly distributed on shell 4 inside, and contacts with bridge silk 9.The constituent of described igniter 7 is conventionally known to one of skill in the art, for example, can be the compound of boron powder and potassium nitrate powder or the compound of zirconium powder and potassium nitrate.
Described bridge silk 9 and igniter 7 direct contacts by spark current the time, are directly lighted igniter 7.Bridge silk 9 is attached on the conductive layer 10 on insulating part 11 surfaces, 10 pairs of bridge silks 9 of insulating part 11 and conductive layer have played the good supporting effect, be difficult for impaired when making bridge silk 9 be subjected to pressure perpendicular to insulating part 11 surfaces, therefore bridge silk 9 can be pressed in the igniter 7, and make bridge silk 9 and igniter 7 closed contacts, therefore compare with present widely used traditional electric fire tube, the utility model can omit the ignition charge that need be coated in bridge silk surface in the conventional point fire tube, and can directly igniter 7 be contacted the ignition effect that can reach same with the traditional electrical ignition tube with bridge silk 9, simplified production process, reduced the probability of responsive medicament blast in producing, also reduce cost, improved security of products.
As shown in Figure 7, another embodiment of the squib that provides according to the utility model, squib of the present utility model also can comprise ignition charge 6, ignition charge 6 is between igniter 7 and bridge silk 9, and with igniter 7 and bridge silk 9 closed contacts, ignition charge 6 comes ignition point gunpowder 7 by igniting.Ignition charge 6 for example can be that ignition charge 6 is coated on the bridge silk 9 with the mode of the closed contact of bridge silk 9.
Described ignition charge 6 is to heat sensitive detonator, and its constituent is conventionally known to one of skill in the art, in general, can be the compound of diphenol lead and/or zirconium powder and potassium perchlorate between trinitro-, also can be the compound of boron powder and potassium nitrate.
Squib of the present utility model can also comprise medicine box 5, and described medicine box 5 is positioned at shell 4 inside, and under the preferable case, the internal diameter of its external diameter and shell 4 forms interference fit, and described igniter 7 and/or ignition charge 6 are positioned at medicine box 5.The material of described medicine box 5 is that those skilled in the art are known, for example plastics.
When work, the core electrode 1 of squib of the present utility model is introduced bridge silk 9 with spark current, electric energy is converted into heat energy, point of ignition gunpowder 7 after 9 energisings of bridge silk.Igniter 7 absorbs the heat energy of bridge silk 9 and takes place to break through medicine box 5 after the selfdecomposition reaction blast, and flame and solid residue that explosion time produces spread out of by the flash hole on the shell 4 12.
Claims (12)
1, a kind of electric ignition device ignition part, this ignition part comprises at least two core electrodes (1) and bridge silk (9), it is characterized in that, this squib also comprises conducting connecting part, this conducting connecting part comprises insulating part (11) and at least two conductive layers (10) of the mutual insulating on insulating part (11) surface, at least two at least two conductive layers (10) of mutual insulating are electrically connected with two core electrodes (1) respectively, and the conductive layer (10) that is electrically connected with core electrode (1) is electrically connected with bridge silk (9) two ends respectively.
2, ignition part according to claim 1 is characterized in that, insulating part (11) is bar-shaped, tabular or sheet.
3, ignition part according to claim 2 is characterized in that, insulating part (11) is a sheet.
4, ignition part according to claim 1 is characterized in that, conductive layer (10) is two, two conductive layers (10) mutual insulating; A slice in two conductive layers (10) is electrically connected with an end of a core electrode (1) and bridge silk (9), and another sheet in two conductive layers (10) is electrically connected with the other end of another one core electrode (1) and bridge silk (9).
5, ignition part according to claim 1 is characterized in that, conductive layer (10) is the multi-disc greater than two, multi-disc conductive layer (10) mutually insulated; Two core electrodes (1) are electrically connected with in the multi-disc conductive layer (10) one or more pieces respectively, one end of bridge silk (9) is electrically connected with a slice conductive layer (10) that is connected with a core electrode (1), the other end of bridge silk (9) is electrically connected with a slice conductive layer (10) that is connected with another core electrode (1), and one or more pieces conductive layers (10) that the centre of bridge silk (9) is electrically connected with discord core electrode (1) are electrically connected.
According to claim 1,4 or 5 described ignition parts, it is characterized in that 6, conductive layer (10) is welding with the electric connection mode of core electrode (1) or bridge silk (9).
7, ignition part according to claim 6 is characterized in that, conductive layer (10) is a plurality of with the solder joint of bridge silk (9).
8, ignition part according to claim 7 is characterized in that, described bridge silk (9) is wrapped on the conductive layer (10), and the part that bridge silk (9) contacts with conductive layer (10) is welded on the conductive layer (10).
9, ignition part according to claim 8 is characterized in that, bridge silk (9) is by the embedding of scolding tin (8) institute.
10, a kind of squib, this squib comprise ignition part, electrode plug (2) and shell (4), and wherein, described ignition part is each described ignition part among the claim 1-9.
11, squib according to claim 10 is characterized in that, this squib can also comprise igniter (7), and igniter (7) is evenly distributed on shell (4) inside, and with bridge silk (9) closed contact.
12, squib according to claim 11 is characterized in that, this squib also comprises ignition charge (6), ignition charge (6) between igniter (7) and bridge silk (9), and with igniter (7) and bridge silk (9) closed contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620138677 CN200951746Y (en) | 2006-09-19 | 2006-09-19 | Electric igniting apparatus igniting parts and electric igniting pipe containing said parts catching fire igniting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620138677 CN200951746Y (en) | 2006-09-19 | 2006-09-19 | Electric igniting apparatus igniting parts and electric igniting pipe containing said parts catching fire igniting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200951746Y true CN200951746Y (en) | 2007-09-26 |
Family
ID=38810043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620138677 Expired - Lifetime CN200951746Y (en) | 2006-09-19 | 2006-09-19 | Electric igniting apparatus igniting parts and electric igniting pipe containing said parts catching fire igniting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200951746Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN114323957A (en) * | 2022-01-11 | 2022-04-12 | 温州市大荣纺织仪器有限公司 | High-efficient spacing car air bag ignition tube bridging filament welding strength detector |
-
2006
- 2006-09-19 CN CN 200620138677 patent/CN200951746Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN114323957A (en) * | 2022-01-11 | 2022-04-12 | 温州市大荣纺织仪器有限公司 | High-efficient spacing car air bag ignition tube bridging filament welding strength detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070926 |
|
| EXPY | Termination of patent right or utility model |