• 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 (13), with an electrically conductive base body (14), a first contact pin (15) and a second contact pin (16), wherein the first contact pin (15) is electrically conductively connected to the base body (14), and wherein the second contact pin (16), electrically isolated from the base body (14) and gas-tight, is guided through the base body (14), it is proposed that the first contact pin (15) is connected to the base body (14) by means of a solder connection a first surface (3) of the base body (14) a first recess (4) is arranged, that a rounded or pointed end of the first contact pin (15) in the first recess (4) is arranged in a space (5) between a first lateral surface (6) of the first depression (4) and the first contact pin (15) a solder material (7) is arranged, and that the solder material (7) at least partially on both the first contact pin (15), and is arranged on the first lateral surface (6).
    公开号:AT510474A1
    申请号:T16382010
    申请日:2010-09-30
    公开日:2012-04-15
    发明作者:
    申请人:Electrovac Metall Glaseinschmelzungs Gmbh；
    IPC主号:
    专利说明:

    1 7
    32045 / lh
    The invention relates to a solder joint according to the preamble of claim 1.
    There are known solder joints for attaching a thin pin to a surface substantially at right angles. In this case, the pin is provided with a substantially planar end face, which is butt soldered to the surface. The disadvantage of this is that the pens in question, due to the large-scale production, have no flat faces, and therefore a corresponding processing step is required before the solder joint can be made. Furthermore, such a solder joint tends to shear off the pins, and has the disadvantage of low vibration resistance. This is particularly disadvantageous when using appropriately processed assemblies in vehicles, as this can lead to increased failure rates. This has a particularly disadvantageous effect when used in safety-relevant devices, such as an igniter for an airbag, whose function must be ensured, in particular, at high accelerations occurring.
    There are further known solder joints in which the production of a flat surface according to the preceding paragraph is dispensed with. According to a first such known solder joint is provided to blunt the rounded ends of a contact pin to a surface. Such designs also have very poor mechanical properties. According to a second such known solder joint is provided to guide a pin through a through hole and attach a conventional solder joint on both sides in the throat between the pin and the body. Fertilize such solder but are very inflexible in use.
    The object of the invention is therefore to provide a solder joint of the type mentioned above, with which the mentioned disadvantages can be avoided, with which the preparatory work for the preparation of a semifinished product can be reduced to the solder joint, and increases the safety of the solder joint, especially against shearing can be, and which is flexible.
    According to the invention this is achieved by the features of claim 1.
    As a result, a solder joint can be formed, which has a high level of safety against mechanical damage, in particular against shearing, 2 since any notch effects due to wetting of both the pin and the lateral surface of the first recess are avoided, and a lateral force transmission via the solder material to the Lateral surface of the first recess is made possible. As a result, furthermore, a pin can essentially be processed without further preparatory mechanical processing since no planar end face is required. This allows pins with rounded or sharpened ends to be securely soldered without further processing of such ends. According to today's conventional manufacturing method, corresponding pins, such as for the most preferred use in ignition base for gas generator igniter, after their production rounded ends. Such pins can now be processed without further post-processing. As a result, the production costs and the production costs can be reduced. A solder joint according to the invention is also versatile and flexible.
    The subclaims, which as well as the patent claim 1 simultaneously form part of the description, relate to further advantageous embodiments of the invention.
    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 a first preferred embodiment of a Zündersockels for gas generators with a solder joint according to the invention in plan view;
    Fig. 2 shows the Ausführungsforrn of Figure 1 in axonometric view.
    Fig. 3 section A-A according to Fig. I;
    4 shows a second preferred embodiment of a Zündersockels for gas generators with a solder joint according to the invention in plan view;
    Fig. 5 shows the embodiment of Figure 4 in axonometric view.
    FIG. 6 shows section B-B according to FIG. 4; FIG.
    7 shows a third preferred embodiment of a fuze base for gas generators with a solder joint according to the invention in plan view;
    FIG. 8 shows the embodiment according to FIG. 7 in an axonometric view; FIG.
    Fig. 9 section C-C of FIG. 7;
    10 shows a fourth preferred embodiment of a fuze base for gas generators with a solder joint according to the invention in plan view;
    11 shows section D-D according to FIG. 10; and 3
    FIG. 12 shows detail G according to FIG. 11.
    1 to 12 respectively show preferred arrangements or details of arrangements of an electrically conductive body 1 and a - connected by a solder connection to the body 1 - electrically conductive first pin 2, wherein in a first surface 3 of the body 1, a first Recess 4 is arranged, wherein the first pin 2 is arranged in regions in the first recess 4, wherein in a gap 5 between a first lateral surface 6 of the first recess 4 and the first pin 2, a solder material 7 is arranged, and wherein the solder material 7 at least partially arranged on both the first pin 2, and on the first lateral surface 6.
    Thereby, a solder joint can be formed, which has a high security against mechanical damage, especially against shearing, since due to the wetting of both the first pin 2, and the first lateral surface 6 of the first recess 4 any notch effects are avoided, and a lateral power transmission via the solder material 7 is made possible on the first lateral surface 6 of the first recess 4. As a result, furthermore, a first pin 2 can be processed essentially without further preparatory mechanical processing, since no plane end face is required. This allows pins with rounded or sharpened ends to be securely soldered without further processing of such ends. According to today's conventional manufacturing method, corresponding pins, such as for the particularly preferred use at ignition base 13 for gas generator igniter, after their production rounded ends. Such pins can now be processed without further post-processing. As a result, the production costs and the production costs can be reduced. A solder joint according to the invention is also versatile and flexible.
    The term solder joint designates a connection of two or more metallic parts by means of a molten solder, which at least partially wets the surfaces of the at least two interconnected parts, in particular at least partially diffused into the respective surfaces. The term solder material preferably includes any type of alloy and / or a pure metal, which can be used for hard and / or soft soldering, in particular any kind of solder or solder.
    The particularly preferred main application of solder joints according to the invention relates to fuse base 13, as for example in gas generators, airbags or
    Belt tensioners for safety belts in vehicles find use. A gas generator is a fire set, which is provided and designed so that its combustion gases fill a cavity, such as the interior of an airbag. 1 to 12 show four different preferred embodiments of such Zündersockel 13. Subsequently, the solder joint according to the invention is explained in more detail with reference to these preferred embodiments. However, the use of solder joints according to the invention is not limited to this application. This can also be provided for connecting other components or assemblies.
    The subject invention relates to a solder joint in which it is provided to connect a first pin 2, therefore a thin rod with a preferably round cross section, to a body 1. The body 1 has - to form the solder joint - a first surface 3, in which a first recess 4 is arranged.
    The first recess 4, which may be of different design, has a bottom region 8 and a first lateral surface 6. The bottom region 8 denotes a bottom of the first depression 4 and preferably the region surrounding this base normal to the first surface 3, in particular if the floor is not flat. The first lateral surface 6 denotes the surface which extends between the first surface 3 and the bottom region. It is preferably provided that the first lateral surface 6 is at least partially inclined and / or rounded relative to the first surface 3. It is preferably provided that the first recess 4 is frusto-conical or truncated pyramid.
    The first pin 2 is arranged at least partially in the first recess 4. It is preferably provided that a diameter or a diagonal of the first recess 4 is always larger than a diameter or a corresponding diagonal of the first pin 2 in the region of the first recess 4. Thereby, there is a gap 5 between the first lateral surface 6 of the first Well 4 and arranged in this first pin 2. In this space 5 at least partially a solder material 7 is arranged, wherein it is preferably provided that substantially the entire bottom portion 8 of the first recess 4 is covered with the solder material 7. According to the invention it is further provided that the solder material 7 is at least partially disposed both on the first pin 2, and on the lateral surface 6, therefore liable. By virtue of the preferably provided truncated conical or truncated pyramidal shape of the first depression 4, wetting by the soldering material 7 is improved, and a large surface area is provided for contact with the soldering material 7.
    1 to 3 show a first preferred embodiment of a fuze base 13, with an electrically conductive base body 14, a first contact pin 15 and a second contact pin 16, wherein the first contact pin 15 is electrically conductively connected to the main body 14, and wherein the second Contact pin 16, electrically insulated from the base body 14 and gas-tight, is guided by the base body 14. The first contact pin 15 is connected to the main body 14 by means of a solder connection according to the invention. The first contact pin 15 corresponds to the first pin 2, and the main body 14 to the body. 1
    The first contact pin 15, which is conductively connected to the base body 14, is preferably provided for the mass connection of the ignition base 13, whereas the second contact pin 16, which is electrically insulated from the base body 14, is provided for current conduction.
    The main body 14 has a substantially cylindrical disc-shaped basic shape, and is preferably formed comprising steel. The second contact pin 16 is guided through a passage opening of the main body 14, and electrically insulated from the base body 14 by means of a glass body 19, wherein the relevant compound is further designed to be gas-tight. Such compounds are also referred to as "glass to metal seal" GTMS short, It is preferably provided that the base body 14 is fused to the second contact pin 16 by means of the glass mass 19.
    In the base body 14, a frustoconical first recess 4 is arranged, as can be seen in particular in the sectional view of FIG. 3, in which the first contact pin 15 is held by means of a solder connection according to the invention, wherein-preferably provided-substantially in the entire interspace. 5 in the bottom region 8 of the first recess 4, the solder material 7 is arranged.
    The first pin 2 or first contact pin 15 is arranged substantially normal to the first surface 3. It is provided in particular that the first pin 2 is arranged at least in the region of the solder joint normal to the first surface 3. As a result, the soldering process is improved because the formation of the solder meniscus is improved.
    4 to 6 show a second preferred embodiment of a Zündersockels 13, wherein the basic structure of the first preferred embodiment according to FIGS. 1 to 3 corresponds. 6
    The main body 14 of this second preferred embodiment also has a kcgel blunt-shaped first recess 4, wherein subsequent to the bottom portion 8 of the first recess 4, a receiving opening 9 is arranged. This receiving opening 9 has a substantially opposite to the first contact pin 15 cross section, wherein it is preferably provided that the receiving opening 9 has dimensions which allow imports of the first contact pin 15 with a small clearance.
    It can be provided that the receiving opening 9 is formed as a blind hole. However, as shown, it is preferably provided that the receiving opening 9 is formed as a through-hole, whereby a particularly good connection between the first contact pin 15 and the main body 14 can be achieved.
    As can be seen in particular in FIG. 6, the first pin 2 or the first contact pin is arranged in the receiving opening 9. According to a particularly preferred embodiment of the subject invention, it is provided that in a gap 10 between a pin skirt surface 11 of the first pin 2 and a second lateral surface of the receiving opening 9 at least partially the solder material 7 is arranged. This can be dispensed with a complex Vorbelöten the first pin 2 and the first contact pin 15, whereby a further processing step can be saved. It is preferably provided that the gap 10 is substantially completely filled with the solder material,
    It is preferably provided that the gap 10 has a width and a height which, in interaction with a certain solder material 7 and a specific processing temperature, results in the penetration of the solder material 7 into the gap 10 due to the capillary action. As a result, both the processing can be further simplified, and the safety of the solder joint can be increased, since the effective area of the solder joint is very large. As a result, the load capacity of the solder joint and the entire ignition base 13 can be improved. As a result, the security against destruction of the ignition base 13 - be improved - about the ignition of the gas generator.
    The first pin 2 arranged in the receiving opening 9 penetrates the main body 14. In this second embodiment, both the first and the second contact pin 15, 16 are flush with the first side 17 of the main body 14. The plane 7
    Surface on the first side 17 is preferably achieved by grinding the base body 14 after the solder joint has been produced. The use of rounded end pins is therefore not limited in the second embodiment.
    7 to 9 show a third preferred embodiment of a fuze base 13 for a gas generator, wherein the basic structure of the second preferred embodiment according to FIGS. 4 to 6 corresponds.
    In addition to a solder joint according to the invention with a first recess 4 on the first surface 3 of the body 1, a second recess is further provided on the first side 17, the use of which a second solder joint according to the invention is realized. Furthermore, the gap 10 is also covered with solder material 7. The ends of the two contact pins 15, 16 are unprocessed and have the production-related rounds. in the region of the first side 17 of the main body 14, the second recess forms at the edge of an annular elevation, which has a sharp edge. This preferably serves as a reservoir for a solder material 7, wherein it is preferably provided to abrade the edge and optionally the protruding parts of the first and / or second pin 2, 18 on the first side 17 in order to form a planar surface on the first side 17 ,
    10 to 12 show a fourth preferred embodiment of a fuze base 13, wherein the basic structure of the second preferred embodiment according to FIGS. 4 to 6 corresponds, wherein the first surface 3 is arranged on the first side 3 7, and the ends of the projecting two pins on this first surface 3. The solder joint according to the invention is therefore ordered only on the first side 17 of the main body 14 at.
    In a further embodiment, it is provided that the parts of the first and / or second pin 2, 18 projecting on the first side 17 are ground to form a planar surface on the first side 17.
    Further embodiments according to the invention have only a part of the features described, wherein each feature combination, in particular also of various described embodiments, can be provided.
    claims:
    权利要求:
    Claims (1)
    [1]
    8 GIBLER & POTH Patentanwälte OG Dorothecrgasse 7 - A-1010 Vienna - patent@aon.at Tel: +43 (1) 512 10 98 - Fax: +43 (1) 513 47 76 32045 / ih PATENT CLAIMS 1. Solder connection between an electrically conductive body ( 1) and an electrically conductive first pin (2), characterized in that in a first surface (3) of the body (1) a first recess (4) is arranged, that the first pin (2) partially in the first recess ( 4), that in a gap (5) between a first lateral surface (6) of the first recess (4) and the first pin (2) a solder material (7) is arranged, and that the solder material (7) at least partially both is arranged on the first pin (2), as well as on the first lateral surface (6). 2. Solder joint according to claim 1, characterized in that the first recess (4) is truncated cone or truncated pyramid shaped. 3. solder joint according to claim 1 or 2, characterized in that the first pin (2) - at least in the region of the solder joint - is arranged substantially normal to the first surface (3). 4. solder joint according to claim 1, 2 or 3, characterized in that subsequent to a bottom region (8) of the first recess (4) has a receiving opening (9) is arranged, and that the first pin (2) in the Aufnahmeöffhung (9) is arranged. 5. solder joint according to claim 4, characterized in that the Aufnahmeöffhung (9) is formed as a through hole. 6. A solder joint according to any one of claims 1 to 5, characterized in that substantially in the entire space (5) in the bottom region (8) of the first recess (4), the solder material (7) is arranged. 7. solder joint according to one of claims 4 to 6, characterized in that in a gap (10) between a pin skirt surface (11) of the first pin (2) and a second lateral surface of the receiving opening (9) at least partially, in particular substantially completely, the solder material (7) is arranged. 8. Solder joint according to one of claims 4 to 7, characterized in that in the Aufhahmeöffhung (9) arranged first pin (2) penetrates the body (1). 9. Zündersockel (13), with an electrically conductive base body (14), a first contact pin (15) and a second contact pin (16), wherein the first contact pin (15) is electrically conductively connected to the base body (14), and wherein the second contact pin (16) is electrically insulated from the base body (14) and guided through the base body (14) in a gas-tight manner, characterized in that the first contact pin (15) is connected to the base body by means of a solder connection according to one of Claims 1 to 8. 14) is connected. 10. ignition base (13) according to claim 9, characterized in that the solder connection to a first, provided for causing a spark side (17) of the base body (14) is arranged.

    Patent Attorneys OG Dorotheergasse 7 - Λ-1010 Vienna - patent@aon.at Tel. +43 (1) S12 10 98 - Fax: +43 (1) 513 47 76
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    优先权:
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