• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    In a fuze base (1) for an airbag detonator, comprising an electrically conductive base body (11) having a glass feedthrough opening (21) and a first region (5) having a first thickness, said glass feedthrough opening (21) being one, a second thickness having in the glass passage opening (21), a first pin (3) in a glass body (22) is arranged and in the first region (5), a second pin (4) electrically is conductively connected to the base body (11), it is proposed that the first thickness of the base body (11) is smaller than the second thickness.
    公开号:AT513957A1
    申请号:T43/2013
    申请日:2013-01-23
    公开日:2014-08-15
    发明作者:Christian Bauer；Dieter Dipl Ing Thumfart
    申请人:Electrovac Hacht & Huber Gmbh；
    IPC主号:
    专利说明:

    t 33949 / mo
    The invention relates to a fuze base for an airbag detonator according to the preamble of claim 1.
    In airbags gas generators are included, which produce the gas required to inflate the airbag. In this case, the ignition of a fire sentence is usually provided, for which purpose a corresponding airbag detonator is provided. Such airbag igniters have a cylindrical body through which a conductive contact is electrically isolated. When triggering the fire sentence while the airbag igniter is charged with the full pressure, which is caused by the fire, and which ultimately drives the inflator and inflates the airbag. As a result, such airbag igniters are exposed to a considerable mechanical short-term load, similar to a blow, and special demands are placed on them.
    Such airbag igniter have a Zündersockel, which has a so-called. Metal / glass passage in the rule. If the fuze base is loaded until it fails, the glass part may be pressed out of a base body, which endangers the further safe functioning of the entire pyrotechnic system.
    The object of the invention is therefore to provide a Zündersockel for an airbag detonator of the type mentioned, with which the safe operation of the airbag igniter can be supported, which has a high overall load and a low manufacturing and material costs.
    This is achieved by the features of claim 1 according to the invention.
    As a result, a fuze base can be produced, which has a higher load capacity than conventional fuze base. This supports the safe function of an airbag. As a result, further a fuze base can be produced, which has a significantly lower material expenditure with the same load capacity as conventional fuze base. It has been found here that the base body of the detonator base deforms during ignition, whereby in a conventional detonator base, the glass feedthrough opening is widened and the glass body is loosened. 2 33949 / mo
    By the subject measures, so that the area around the glass opening is thicker and thus more stable than the rest of the body, the squeezing force of such a glass body can be increased, the rest of the body can be made thinner, lighter and thus more material-saving. Furthermore, by the arrangement of the second pin in the thinner region of the electrical resistance can be kept low when the second pin is attached to the front side, or particularly easily an opening for the second pin are formed.
    Furthermore, the invention relates to a method according to claim 10.
    The object of the invention is therefore further to provide a method for producing a Zündersockels for an airbag detonator, with which an advantageous Zündersockel can be easily formed.
    This is achieved by the features of claim 10 according to the invention.
    As a result, an advantageous ignition base can be formed in a simple manner.
    The subclaims relate to further advantageous embodiments of the invention.
    It is hereby expressly referred to the wording of the claims, whereby the claims at this point are incorporated by reference into the description and are considered to be reproduced verbatim.
    The invention will be described in more detail with reference to the accompanying drawings, in which only preferred embodiments are shown by way of example. Showing:
    1 shows the basic body of a first preferred embodiment of a Zündersockels in plan view;
    Fig. 2 is a section along the line A-A in Fig. 1;
    3 shows the main body of a second preferred embodiment of a Zündersockels in plan view; • • • • • • • • 3 33949 / mo
    Fig. 4 is a section along the line C-C in Fig. 3;
    5 shows the second preferred embodiment of a Zündersockels as a section in elevation.
    Fig. 6 is a section along the line R-R in Fig. 7;
    7 shows the main body of a third preferred embodiment of a Zündersockels in plan view;
    Fig. 8 is a section taken along the line S-S in Fig. 9;
    9 shows the basic body of a fourth preferred embodiment of a fuze base in plan view;
    10 shows the fourth preferred embodiment of a Zündersockels as a section in elevation.
    Fig. 11 is a section along the line T-T in Fig. 12;
    12 shows the basic body of a fifth preferred embodiment of a detonator base in plan view;
    Fig. 13 is a section along the line U-U in Fig. 14;
    14 shows the basic body of a sixth preferred embodiment of a fuze base in plan view;
    Fig. 15 shows the sixth preferred embodiment of a fuze base as a section in elevation;
    16 shows the basic body of a seventh preferred embodiment of a Zündersockels in plan view;
    17 shows a section along the line VIII-VIII in FIG. 16;
    18 shows the basic body of a eighth preferred embodiment of a fuze base in plan view;
    Fig. 19 is a section along the line IX-IX in Fig. 18; 4/24 • ····························································································································································································
    Fig. 20 shows the eighth preferred embodiment of a Zündersockels as a section in elevation;
    21 shows the basic body of a ninth preferred embodiment of a detonator base in plan view;
    Fig. 22 is a sectional view taken along the line XI-XI in Fig. 21;
    23 shows the ninth preferred embodiment of a fuze base as a section in elevation.
    1 to 23 show preferred embodiments of a fuze base 1 for an airbag detonator, comprising an electrically conductive base body 11 having a glass feedthrough opening 21 and a first region 5 having a first thickness, the glass feedthrough opening 21 having a second thickness, second area 6 of the base body 11 is punched, wherein in the glass passage opening 21, a first pin 3 is arranged in a glass body 22 and in the first region 5, a second pin 4 is electrically connected to the base body 11.
    The main body 11 may particularly preferably have a substantially cylindrical disc-shaped basic shape. In particular, the base body 11 may be made of steel, particularly preferably stainless steel.
    The first pin 3 and / or the second pin 4 may be formed in particular as round pins with a pin diameter of 1 mm.
    The main body 11 may further comprise a first side 12 and a second side 13. In this case, in particular on the second side 13, an ignition conductor, which ignition conductor for igniting the ignition means, so an explosive, is provided.
    The main body 11 has a second region 6 through which a glass feedthrough opening 21 is guided, in particular punched. The second region of the main body 11 can be particularly preferably at least one region of the main body 11, which directly the glass feedthrough opening 21, in particular in an area with a distance of up to 0.3 mm to the glass feedthrough opening 5/24 33949 / mo adjacent surrounds. In the glass feedthrough opening 21, the first pin 3 is arranged in the glass body 22 in an electrically insulated manner from the base body; the first pin 3 and the glass body 22 can be held in the glass feedthrough opening 21, in particular by a press fit.
    The second thickness may be the distance from the first side 12 to the second side 13 in the second region. In this case, provision may in particular be made for the second thickness to be in particular between 2 mm and 4 mm, particularly preferably between 2.2 mm and 2.8 mm. With such a thickness, the glass leadthrough of the first pin 3 can be made particularly reliable.
    The first pin 3 is guided through the glass passage opening 21 of the base body 11, and electrically insulated from the base body 11 by means of a glass body 22, which is designed in particular as a glass mass, wherein the compound in question is further gas-tight. Such compounds are also referred to as "glass to metal seal" GTMS short.
    The main body 11 furthermore has a first region 5, the second pin 4 being electrically connected to the main body 11 in the first region 5. In this case, the first region 5 of the base body 11 may in particular be at least one region of the main body 11, to which the second pin 4 is connected to the basic body 11 or pierces the latter.
    Furthermore, the second pin 4 can in particular be electrically conductively connected to the main body 11 by means of a solder joint comprising a solder material 51. In particular solders comprising Cu and / or Ag can be used as brazing material 51. Such solders have a high electrical conductivity and good mechanical properties.
    It is provided that the first thickness of the main body 11 is smaller than the second thickness. In other words, the second region 6 around the glass feedthrough opening 21 is thicker than a first region 5, as a result of which the energy of the ignition acting on the main body 11 mainly leads to a deformation of the first region 5, but it has been found that a deformation of the first Area 5, as long as this does not tear, essentially
    33949 / mo remains without adverse effects, since the conductive connection of the second pin 4 to the base body 11 is much less sensitive to deformation than the glass / metal connection of the first pin 3. The first thickness and the second thickness can in particular along an imaginary line be measured, which runs parallel to a central axis of the glass passage opening 21.
    As a result, a fuze base 1 can be produced, which has a higher load capacity than conventional fuze bases. This supports the safe function of an airbag. As a result, further a fuze base 1 can be produced, which at a same load capacity as conventional fuze base has a significantly lower cost of materials. It has been shown here that the base body 11 of the fuze base 1 deforms during ignition, whereby the glass feedthrough opening 21 is widened in a conventional fuze base 1 and the glass body 22 is loosened. By the objective measures, so that the area around the glass feedthrough opening 21 is thicker and thus more stable than the rest of the base body 11, the Auspresskraft of such a glass body 22 can be increased, the remaining base body 11 can be made thinner, lighter and thus more material-saving. Furthermore, can be kept low by the arrangement of the second pin 4 in the thinner region of the electrical resistance, when the second pin 4 is attached to the front side, or particularly easy an opening for the second pin 4 are formed.
    The amount for the first thickness depends on the geometry of the base body 11 and the material of the base body 11. Particularly preferred may be provided that the second thickness is greater by at least 25% than the first thickness. With such a ratio of the thicknesses, a reliable and mechanically stable passage of the first pin 3 can be achieved.
    Furthermore, it can be provided that the first thickness is between 0.2 mm and 2 mm. It has been found that such a first thickness is already sufficient to sufficiently hold a second pin 4 soldered in a passage opening 52. 7/24 1 33949 / mo
    Particularly preferably, it can also be provided that, viewed from one side of the main body 11, a partial region of the main body 11 which exceeds the first thickness is a stiffening element for ensuring the dimensional stability of the glass feedthrough opening 21 with respect to pressurization. The partial area exceeding the first thickness can in this case be arranged in particular only in the second area 6 of the main body, whereby the stiffening element is arranged in the second area 6. This means that the base body has a layer-shaped partial area, which layer-shaped partial area extends parallel to the first side 12 and / or second side 13. This layer-shaped subregion has the first thickness, wherein those subregions of the base body 11 which extend beyond this layer-shaped subregion form a stiffening element for ensuring the dimensional stability of the glass leadthrough opening 21 with respect to pressurization.
    It has been shown that the interference fit between the glass body 22 and the glass feedthrough opening 21 is a limiting the total burden of such Zündersockels 1 part, as the base body 11, and thus the glass feedthrough opening 21, deformed at the sudden load when ignited, thereby the glass passage opening 21 expands and the holding force is greatly reduced by the interference fit of the glass body 22.
    By ensuring the dimensional stability of the glass feedthrough opening 21 through the stiffening element, the change in shape of the glass feedthrough opening 21 during pressurization can be reduced, whereby the holding force of the press fit is substantially maintained.
    Particularly preferably, it can be provided that the base body 11 is formed in one piece. In particular, it can be provided that the stiffening element for ensuring the dimensional stability of the glass passage opening 21 with respect to a pressurization and the layered portion are homogeneously integral, so that the distinction between the portion of the body 11, which forms the stiffening element and the layered portion only due to their geometric arrangement can be made, and that these two parts of the body 11 together form a homogeneous one-piece body 8/24 8 '33949 / mo. As a result, the main body 11 can be produced easily and, furthermore, a particularly good interaction with the stiffening element and the remaining main body 11 can be ensured.
    Furthermore, a method for producing a fuze base 1 for an airbag detonator can be provided, wherein in a, first thickness, first area 5 of the fuze base 1, a second pin 4 is electrically conductively connected to the base 11, wherein a glass feedthrough opening 21 through a a second thickness having, second portion 6 of the base body 11 is punched, wherein the first thickness of the base body 11 is smaller than the second thickness, and wherein in the glass passage opening 21, a first pin 3 is arranged in a glass body 22.
    It can be provided that the base body 11 is formed from a semi-finished product, wherein the semi-finished product has a region of the first thickness and a region of the second thickness. For example, the main body 11 may be formed of a metal band, which metal band has a profile having a step. As a result, a base body 11 having a first thickness-having first region 5 and a second thickness-having second region 6 can be produced in a simple manner.
    Alternatively it can be provided that in the first region 5, a depression in the base body 11 is formed. In this case, the depression can form the first region 5. This depression can be introduced in many ways, for example by a machining process.
    According to the preferred embodiments in FIGS. 1 to 7, 11 and 12, it may be provided that the first region 5 is formed without interruptions, and that the second pin 4 is electrically conductively connected to the base body 11 at one end in the first region 5. This results in the advantage that is reduced by the small first thickness of the resistance of the body in the first region 5. Furthermore, the electrical voltage profile can be well defined by the reduced thickness.
    According to the preferred embodiments in Figs. 8, 9, 10 and 16 to 23, 9/24 • ········ 9 . * * .. ·· .. · .. * · .. 33949 / mo be particularly preferably provided, a through hole 52 is punched through the first region 5 of the base body 11, that the second pin 4 is guided through the through hole 52, and that a cross section of the glass passage opening 21 is greater than a cross section of the through hole 52. The through hole In this case, 52 may in particular be a circular opening whose diameter is, in particular, slightly larger than the diameter of the second pin 4. This results in the advantage that due to the small thickness of the first region 5, a passage opening 52 with a small diameter can be well punched, as a result of which the ignition base 1 can be produced with little material and energy expenditure. In this case, it has been found that a second pin 4 fastened with a solder material 51 holds well even with a very small first thickness.
    In this case, it can be particularly preferably provided that a passage opening 52 is punched through the first area 5 of the conductive base body 11, and that a cross section of the glass passage opening 21 is larger than a cross section of the passage opening 52. In the further course of the method can then the second pin. 4 arranged in the passage opening 52 and, in particular with the solder material 51, are electrically conductively connected to the base body.
    Particularly preferably, it can be provided that the first thickness is smaller than 1.85 times the diameter of the passage opening 52. This makes it possible to punch through the base body 11 easily and with little tool wear.
    When punching an opening in a body, it may be due to the production to a breaking out of an end region.
    As a result of the punching of the passage opening 52, a break-out 54 can thereby form on one side 12, 13 around the passage opening 52, as shown in FIGS. 8, 9, 13 and 14. In order to have a clear definition of the first region 5 and, associated therewith, of the first thickness, it can be provided here in particular that the first thickness is the thickness of the first region 5 before the through-opening 52 is formed, and the manufacturing technology often unavoidable Formation of a break-out 54 in the determination of the first thickness is not taken into account, that is, the first thickness at which the break-out 54 10/24 ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• surrounding area of the base body 11 is determined.
    According to the preferred embodiments in FIGS. 6 to 15, as well as 21 to 23, it may be particularly preferred for the first region 5 to be formed as an indentation 53 embossed into the main body 11 by pressure forming. In this case, the remaining base body 11 may be formed as a second region 6. In this case, the second region 6 of the surface is substantially larger than the first region 5. Thus, from a conventional semi-finished with a constant thickness easily a base body 11 are formed with a first region 5, wherein the second thickness corresponds to the thickness of the original semifinished product. By means of this indentation 53, a through-opening 52 for the second pin 4 can furthermore be formed particularly well. Furthermore, good reliable soldering of the second pin 4 in the indentation can be achieved.
    The indentation 53 may in this case in particular have a diameter, which diameter is at least 1.5 times the pin diameter of the second pin 4. As a result, a passage opening 52 can be punched well through the indentation. In the case of an opening-free first region 5, this makes it easier to ensure that the second pin 4 abuts only on one end face on the first region 5, as a result of which the electrical voltage curve in the main body 11 can be well predefined.
    The preferred embodiment in FIGS. 6 and 7 may also be a preliminary stage for the preferred embodiment according to FIGS. 8 to 10. Similarly, the preferred embodiment in FIGS. 11 and 12 may be a preliminary stage for the preferred embodiment of FIGS. 13-15.
    In the method for producing a fuze base 1, it may be particularly preferred for this purpose that an indentation 53 in the main body 11 is embossed in the first region 5 by means of pressure forming to form the depression.
    According to the preferred embodiments in FIGS. 6 to 10, as well as 20 to 23, it can be provided, in particular, that the indentation 53 has a substantially frusto-conical shape. Such a recess 53 can be formed well by means of a forming process.
    According to the preferred embodiments in FIGS. 11 to 15, it can further be provided that the indentation 53 has a substantially cylindrical shape.
    According to the preferred embodiments in FIGS. 1 to 5 and 16 to 23, it can be provided, in particular, that the second region 6 has a, in particular hollow cylindrical, sleeve 61 around the glass feedthrough opening 21. The second region can therefore be designed, in particular, as a sleeve 61 surrounding the glass feedthrough opening 21, which increases the dimensional stability of the glass feedthrough opening 21 with respect to pressurization. The sleeve thus forms the stiffening element. In this case, the remaining basic body may be formed as a first region 5. In this case, the first region 5 of the surface is substantially larger than the second region 6. Thus, the base body 11 can be made thin and thus light, wherein the glass feedthrough opening 21 can still be formed very dimensionally stable.
    In this case, it can be provided, in particular, that the first region 5 is bounded on at least one side 12, 13 by a plane, and that the sleeve 61 projects out of this plane.
    According to the preferred embodiment in FIGS. 21 to 23, a combination of the sleeve 61 with the indentation 53 may be provided on opposite sides 12, 13. For the production of the sleeve can be provided that the base body before punching the glass feedthrough opening 21 already has a first region 5 and a second region 6, and that the glass feedthrough opening 21 is punched through the second region 6. In this case, an already suitably shaped semi-finished product can be used.
    Alternatively it can be provided that a semifinished product of the base body 11 has a constant thickness corresponding to the second thickness, and that the sleeve 61 is pulled out of the main body 11 during forming, particularly preferably during the punching process of the glass feedthrough opening 21. 12/24 12 33949 / mo
    Furthermore, according to the preferred embodiments in FIGS. 3 to 5, as well as 18 to 23 may be provided that on one edge of at least one side 12,13 of the base body 11, a circumferential further sleeve 62 is integrally formed on the base body 11. This further sleeve 62 thereby widens the edge of the main body 11, whereby the dimensional stability of the base body is increased, and the base body can also be easily attached to a housing of the airbag igniter.
    In this case, it can be provided, in particular, that the base body 11 on the further sleeve 62 has the same thickness as on the sleeve 61, that is, the second thickness.
    claims:
    权利要求:
    Claims (13)
    [1]
    . * · _ _ ·· _ ·· ·· 13

    DR. WOLFGANG POTH DR. FERDINAND GIBLER DR. WOLFGANG POTH Patent Attorney 1. An ignition base (1) for an airbag igniter, comprising an electrically conductive base body (11) with a glass feedthrough opening (21) and a first region (5) having a first thickness, wherein the glass feedthrough opening (21) is punched through a second region (6) of the base body (11) having a second thickness, wherein in the glass feedthrough opening (21) a first pin (3) is arranged in a glass body (22) and in the first region (5) a second pin (4) is electrically conductively connected to the base body (11), characterized in that the first thickness of the base body (11) is smaller than the second thickness.
    [2]
    2. fuze base (1) according to claim 1, characterized in that a passage opening (52) through the first region (5) of the base body (11) is punched, that the second pin (4) through the through hole (52) is guided, and that a cross section of the glass feedthrough opening (21) is larger than a cross section of the through hole (52).
    [3]
    3. fuze base (1) according to claim 2, characterized in that the first thickness is smaller than 1.85 times the diameter of the through hole (52).
    [4]
    4. Zündersockel (1) according to one of claims 1 to 3, characterized in that - seen from one side of the base body (11) - a first thickness exceeding portion of the base body (11) has a stiffening element to ensure the dimensional stability of 14 / 24 14 33949 / mo glass passage opening (21) with respect to a pressurization.
    [5]
    5. ignition base (1) according to one of claims 1 to 4, characterized in that the base body (11) is integrally formed.
    [6]
    6. fuze base (1) according to one of claims 1 to 5, characterized in that the second thickness is greater by at least 25% than the first thickness.
    [7]
    7. Zündersockel (1) according to one of claims 1 to 6, characterized in that the first region (5) as in the base body (11) embossed by pressure forming indentation (53) is formed.
    [8]
    8. fuze base (1) according to one of claims 1 to 7, characterized in that the second region (6) has a, in particular hollow cylindrical, sleeve (61) around the glass passage opening (21).
    [9]
    9. ignition base (1) according to claim 8, characterized in that on one edge of at least one side (12,13) of the base body (11) has a circumferential further sleeve (62) on the base body (11) is integrally formed.
    [10]
    10. A method for producing a Zündersockels (1) for an airbag detonator, wherein - in a, having a first thickness, the first region (5) of the Zündersockels (1) a second pin (4) is electrically conductively connected to the base body (11) , A glass passage opening (21) is punched through a second region (6) of the base body (11) having a second thickness, wherein the first thickness of the base body (11) is smaller than the second thickness, - in the glass feedthrough opening (21 ) a first pin (3) in a glass body (22) is arranged.
    [11]
    11. The method according to claim 10, characterized in that a passage opening (52) through the first region (5) of the conductive base body (11) is punched, and that a cross section of the glass feedthrough opening (21) is greater than a cross section of the passage opening (52 ).
    [12]
    12. The method according to claim 10 or 11, characterized in that in 15/24 15 33949 / mo first region (5) a recess in the base body (11) is formed.
    [13]
    13. The method according to claim 12, characterized in that in the first region (5) by means of pressure forming to form the recess a recess (53) in the base body (11) is embossed.

    Gibler & Poth Patent Attorneys OG (Dr. F. Gibler or Dr. W. Poth)
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    同族专利:
    公开号 | 公开日
    AT513957B1|2015-02-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20020081899A1|1999-06-15|2002-06-27|Schott Glas|Glass-metal leadthrough|
    US6557474B1|2000-08-30|2003-05-06|Glasseal Products|Initiator header subassembly for inflation devices|
    JP2010084980A|2008-09-30|2010-04-15|Panasonic Corp|Airtight terminal for igniter|DE102014219127A1|2014-09-23|2016-03-24|Schott Ag|Feedthrough element with welded ground pin, method for its production and its use|
    DE102014219125A1|2014-09-23|2016-03-24|Schott Ag|Feedthrough element with directly connected ground pin, process for its preparation and its use|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA43/2013A|AT513957B1|2013-01-23|2013-01-23|igniter receptacle|ATA43/2013A| AT513957B1|2013-01-23|2013-01-23|igniter receptacle|
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