CN107527789A - The filament of automobile halogen lamp and the welding method of molybdenum sheet - Google Patents
The filament of automobile halogen lamp and the welding method of molybdenum sheet Download PDFInfo
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- CN107527789A CN107527789A CN201710653047.1A CN201710653047A CN107527789A CN 107527789 A CN107527789 A CN 107527789A CN 201710653047 A CN201710653047 A CN 201710653047A CN 107527789 A CN107527789 A CN 107527789A
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- filament
- molybdenum
- pair
- halogen lamp
- welding method
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
- H01K3/02—Manufacture of incandescent bodies
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Abstract
A kind of filament of automobile halogen lamp and the welding method of molybdenum sheet, belong to automotive luminaire part manufacture technology field.Described automobile halogen lamp includes filament, molybdenum rod and a pair of molybdenum sheets, and a pair of molybdenum sheets are electrically connected between filament and molybdenum rod, and described welding method comprises the following steps：Match in parts by weight and mix 1 part of niobium powder for 90 110 parts with organic solvent, obtain graded seal suspension；Graded seal suspension is first dipped and coated in the solder joint position welded for the filament and molybdenum rod with it of a pair of molybdenum sheets by manipulator, then is being welded to connect the filament and the molybdenum rod with a pair of molybdenum sheets corresponding to the solder joint position by automatic welding machine in a manner of electric resistance welding.Promote the reliable electrical connection effect between filament and molybdenum sheet, while promote the electrical connection effect between molybdenum rod and a pair of molybdenum sheets；Reduce cost of manufacture.
Description
Technical field
The invention belongs to automotive luminaire part manufacture technology field, and in particular to the filament and molybdenum sheet of a kind of automobile halogen lamp
Welding method.
Background technology
It is no lack of the technical information on for motor vehicle Halogen lamp LED, such as CN100538995C in disclosed Chinese patent literature
（Metal halid lamp）、CN101103436A（Halogen lamp LED）、CN101142654A（Halogen lamp LED）、CN101578685A（Halogen incandescent
Lamp）、CN203192768U（High performance and long service life automotive halogen lamp）、CN102792418B（Halogen for car headlamp
Lamp）、CN101447393B（A kind of Halogen lamp LED and preparation method thereof）、CN102082066B（A kind of C levels Halogen lamp LED）、
CN203192765U（A kind of antidetonation automotive halogen lamp）、CN103413753A（A kind of single end halogen with support frame location hook
Lamp）、CN203744082U（Automobile-used Halogen lamp LED）And CN204537986U（Halogen lamp LED for motor vehicle）, etc..
By the reading to being not limited to above mentioned patent document, for motor vehicle Halogen lamp LED includes glass bulb, button
Cap, lamp panel and lamp holder, glass bulb are fixed with deduction cap, and filament and molybdenum rod and the halogen for being also filled with iodine or bromine etc. are provided with glass bulb
Gas, deduction cap are fixed with lamp holder, and lamp panel is equally fixed with lamp holder.Its operation principle is：When filament is tungsten filament adstante febre, tungsten atom
Backward glass bulb shell wall direction movement is evaporated, when close to glass bulb shell wall, tungsten steam is cooled to about 800 DEG C or so and and halogen original
Son is combined, and forms tungsten halide, such as tungsten iodide or tungsten bromide, and tungsten halide is continued to move to and is oxidized in filament to glass bulb center
On.Because tungsten halide is a kind of extremely unstable compound, thus it resolves into halogen steam and tungsten again after heated, then
Tungsten is deposited on filament again, makes up or compensate the part evaporated, and by this regeneration cycle, the service life of filament is able to
Extend ultimate attainmently（It is more than four times of ordinary incandescent lamp）.
By the reading to being not limited to patent document exemplified above, the filament material of automobile halogen lamp is tungsten,
That is the filament of automobile halogen lamp is tungsten filament, and is directly welded with molybdenum sheet by the way of electric resistance welding.But due to tungsten
Fusing point be 3410 DEG C, and the shape of cross section of tungsten filament is rounded and diameter is relatively large（More than 100 μm）, and molybdenum is molten
Point is relatively small for the thickness of 2610 DEG C and molybdenum sheet（30 μm or so）, thus both are poor in the presence of great disparity on fusing point and size
Different, technical difficulty directly welded to each other is big.With high beam headlight bulb（H1）Exemplified by, in manufacturing process, i.e., by filament and molybdenum sheet
During welding, failure welding rate reaches 0.3%.Although part failure welding product can be rejected by follow-up inspection process,
But all defective products one unworthily occupied a place among them can not be dredged one piece and do not detected in full with not leaking, arriving at terminal in product uses factory
The defective products rate for having 100PPM toward contact at business is present.
The mode for solving above-mentioned technical problem at present mainly has two：First, the rational defective products probability of tolerance；Second, make
Graded seal is done with metal platinum or tantalum, as EP0162673 is referred to application of the metal platinum in automobile halogen lamp.The former is substantial
It is a kind of passive measure for having no countermeasure, although the latter is a kind of active measures, but following 2 shortcoming be present：First, due to
Metal platinum, the price of metal tantalum are sufficiently expensive, so as to cause significantly improving for cost of manufacture；Secondly platinized platinum or tantalum piece are in actual behaviour
It is very inconvenient in work, particularly under the conditions of automatic welding.
For above-mentioned prior art, it is necessary to improved, for this, the applicant has made actively and good try, finally
It is practicable to form technical scheme described below and the experiment proved that in the case where taking secrecy provision.
The content of the invention
The task of the present invention is to provide a kind of filament of automobile halogen lamp and the welding method of molybdenum sheet, and this method can be significantly
Promote the reliable electrical connection effect between filament and molybdenum sheet.
What the task of the present invention was performed by, a kind of filament of automobile halogen lamp and the welding method of molybdenum sheet are described
Automobile halogen lamp include filament, molybdenum rod and a pair of molybdenum sheets, a pair of molybdenum sheets are electrically connected between filament and molybdenum rod, described welding
Method comprises the following steps：
A graded seal suspension) is prepared, 1 part is matched niobium powder in parts by weight and is mixed with organic solvent 90-110 parts, obtained
Cross welding suspension；
B) weld, first dipped by manipulator by step A）Described in obtained graded seal suspension and the confession coated in a pair of molybdenum sheets
The solder joint position that filament and molybdenum rod weld with it, then in a manner of electric resistance welding by automatic welding machine by the filament and the molybdenum
Bar is being welded to connect corresponding to the solder joint position with a pair of molybdenum sheets.
In the specific embodiment of the present invention, described organic solvent is gasoline.
In another specific embodiment of the present invention, the diameter of the niobium powder is less than 100 μm.
In another specific embodiment of the present invention, described filament has one first filament foot and one second filament
Pin, the end of the first filament foot and the upper weld of wherein one piece molybdenum sheet in a pair of described molybdenum sheets, the end of the second filament foot
End and the upper weld of another piece of molybdenum sheet in a pair of molybdenum sheets.
In another specific embodiment of the present invention, the lower weld of described molybdenum rod and a pair of molybdenum sheets.
In the also specific embodiment of the present invention, described filament is single-coil spiral filament.
In a still more specific embodiment of the invention, described single-coil spiral filament is tungsten filament.
The present invention's and then in a specific embodiment, the transverse shape of the tungsten filament is rounded and a diameter of
80-110μm。
The thickness of a pair of described molybdenum sheets is 20-30 μm in yet a further embodiment of the present invention.
Technical scheme provided by the invention has technical effect that：Because 1 part of the niobium powder that will be matched in parts by weight is with having
The graded seal suspension that solvent 90-110 parts are mixed to get is dipped by manipulator and is coated on the confession filament of a pair of molybdenum sheets
And the solder joint position that molybdenum rod welds with it, then by automatic welding machine be automatic welding machinery hand by filament and molybdenum rod corresponding
It is welded to connect in solder joint position and a pair of molybdenum sheets, thus the effect of the reliable electrical connection between filament and molybdenum sheet can be significantly enhanced
Fruit, while promote the electrical connection effect between molybdenum rod and a pair of molybdenum sheets；Because the price of niobium powder is low thus economical,
It is minimized cost of manufacture.
Brief description of the drawings
Fig. 1 is the schematic diagram that the inventive method welds filament and molybdenum rod and a pair of molybdenum sheets.
Embodiment
Embodiment 1：
Fig. 1 is referred to, shows the filament 1, molybdenum rod 2 and a pair of molybdenum sheets 3 of the structural system of automobile halogen lamp, a pair of electricity of molybdenum sheet 3
It is connected between filament 1 and molybdenum rod 2, the welding method of filament and molybdenum sheet provided by the invention comprises the following steps：
A graded seal suspension) is prepared, matches mix 1 part of niobium powder for 90 parts with gasoline in parts by weight, obtain graded seal and hang
Supernatant liquid；
B) weld, first dipped by manipulator by step A）Before obtained graded seal suspension and the confession coated in a pair of molybdenum sheets 3
State the solder joint position 31 that filament 1 and molybdenum rod 2 weld with it, then in a manner of electric resistance welding by automatic welding machine by foregoing filament 1 with
And foregoing molybdenum rod 2 is welded to connect at corresponding to foregoing solder joint position 31 with a pair of molybdenum sheets 3.
In the present embodiment, the diameter of foregoing niobium powder（Also can claim " particle diameter "）For 85-95 μm；Foregoing filament 1 has one
First filament foot 11 and one second filament foot 12, the end of the first filament foot 11 and wherein one piece in foregoing a pair of molybdenum sheets 3
The upper weld of molybdenum sheet, the end of the second filament foot 12 and the upper weld of another piece of molybdenum sheet in a pair of molybdenum sheets 3；Foregoing molybdenum
The lower weld of bar 2 and a pair of molybdenum sheets 3.
In the present embodiment, foregoing filament 1 is single-coil spiral filament, and the single-coil spiral filament is transverse shape
Rounded and a diameter of 110 μm of tungsten filaments；The thickness of a pair of molybdenum sheets 3 is 20 μm.
Embodiment 2：
The diameter of niobium powder is only changed to 90-98 μm；The parts by weight of gasoline are changed to 110；The diameter of tungsten filament is changed to 100 μm；
The thickness of a pair of molybdenum sheets 3 is changed to 30 μm.Remaining description to embodiment 1.
Embodiment 3：
The diameter of niobium powder is only changed to 80-85 μm；The parts by weight of gasoline are changed to 100；The diameter of tungsten filament is changed to 80 μm；Will
The thickness of a pair of molybdenum sheets 3 is changed to 25 μm.Remaining description to embodiment 1.
In summary, technical scheme provided by the invention compensate for the shortcoming in prior art, favorably accomplish invention
Task, the technique effect referred in the superincumbent technique effect column of applicant is faithfully cashed.
Claims (9)
1. a kind of filament of automobile halogen lamp and the welding method of molybdenum sheet, described automobile halogen lamp includes filament (1), molybdenum rod
(2) it is electrically connected to a pair of molybdenum sheets (3), a pair of molybdenum sheets (3) between filament (1) and molybdenum rod (2), it is characterised in that described welding
Method comprises the following steps：
A graded seal suspension) is prepared, 1 part is matched niobium powder in parts by weight and is mixed with organic solvent 90-110 parts, obtained
Cross welding suspension；
B) weld, first dipped by manipulator by step A）Obtained graded seal suspension and coated in the confession of a pair of molybdenum sheets (3)
The solder joint position (31) that the filament (1) and molybdenum rod (2) weld with it, then in a manner of electric resistance welding as described in inciting somebody to action automatic welding machine
Filament (1) and the molybdenum rod (2) are welded to connect corresponding to solder joint position (31) place and a pair of molybdenum sheets (3).
2. the filament of automobile halogen lamp according to claim 1 and the welding method of molybdenum sheet, it is characterised in that described has
Solvent is gasoline.
3. the filament of automobile halogen lamp according to claim 1 and the welding method of molybdenum sheet, it is characterised in that the niobium powder
Diameter be less than 100 μm.
4. the filament of automobile halogen lamp according to claim 1 and the welding method of molybdenum sheet, it is characterised in that described lamp
Silk (1) has one first filament foot (11) and one second filament foot (12), the end of the first filament foot (11) and described a pair
The upper weld of wherein one piece molybdenum sheet in molybdenum sheet (3), the end of the second filament foot (12) and another piece in a pair of molybdenum sheets (3)
The upper weld of molybdenum sheet.
5. the filament of automobile halogen lamp according to claim 1 and the welding method of molybdenum sheet, it is characterised in that described molybdenum
Bar (2) and the lower weld of a pair of molybdenum sheets (3).
6. the filament of the automobile halogen lamp according to claim 1 or 4 and the welding method of molybdenum sheet, it is characterised in that described
Filament (1) is single-coil spiral filament.
7. the filament of automobile halogen lamp according to claim 6 and the welding method of molybdenum sheet, it is characterised in that described list
Coil helix filament is tungsten filament.
8. the filament of automobile halogen lamp according to claim 7 and the welding method of molybdenum sheet, it is characterised in that the tungsten filament
Transverse shape it is rounded and a diameter of 80-110 μm.
9. the filament of automobile halogen lamp and the welding method of molybdenum sheet according to claim 1 or 4 or 5, it is characterised in that institute
The thickness for a pair of the molybdenum sheets (3) stated is 20-30 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710653047.1A CN107527789A (en) | 2017-08-02 | 2017-08-02 | The filament of automobile halogen lamp and the welding method of molybdenum sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710653047.1A CN107527789A (en) | 2017-08-02 | 2017-08-02 | The filament of automobile halogen lamp and the welding method of molybdenum sheet |
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| Publication Number | Publication Date |
|---|---|
| CN107527789A true CN107527789A (en) | 2017-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710653047.1A Pending CN107527789A (en) | 2017-08-02 | 2017-08-02 | The filament of automobile halogen lamp and the welding method of molybdenum sheet |
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| CN (1) | CN107527789A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112975209A (en) * | 2021-03-10 | 2021-06-18 | 嘉兴市光泰照明有限公司 | Halogen lamp filament resistance welding mud and preparation method and application thereof |
| CN113643958A (en) * | 2020-04-27 | 2021-11-12 | 常熟林芝电子技术有限公司 | Method for improving light distribution performance of halogen lamp filament for vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0657912A2 (en) * | 1993-12-08 | 1995-06-14 | Ushiodenki Kabushiki Kaisha | Process for connection of a molybdenum foil to a molybdenum lead portion and method of producing a hermetically enclosed part of a lamp using the process |
| CN1184728A (en) * | 1996-12-10 | 1998-06-17 | 杨范文 | Non-alcohol type shot-welding method used in electric illuminant industry |
| CN201285756Y (en) * | 2008-09-12 | 2009-08-05 | 王宪温 | Lamp for motor vehicle |
| CN101567292A (en) * | 2009-06-09 | 2009-10-28 | 上海亚尔光源有限公司 | Metal halogen lamp electrode component with extra small power |
| CN203265906U (en) * | 2013-05-07 | 2013-11-06 | 上海亚尔光源有限公司 | Electrode assembly for vehicle metal halide lamp |
| CN104810237A (en) * | 2015-04-23 | 2015-07-29 | 浙江奇达光源有限公司 | Spherical infrared reflection halogen bulb with exhaust pipe |
-
2017
- 2017-08-02 CN CN201710653047.1A patent/CN107527789A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0657912A2 (en) * | 1993-12-08 | 1995-06-14 | Ushiodenki Kabushiki Kaisha | Process for connection of a molybdenum foil to a molybdenum lead portion and method of producing a hermetically enclosed part of a lamp using the process |
| CN1184728A (en) * | 1996-12-10 | 1998-06-17 | 杨范文 | Non-alcohol type shot-welding method used in electric illuminant industry |
| CN201285756Y (en) * | 2008-09-12 | 2009-08-05 | 王宪温 | Lamp for motor vehicle |
| CN101567292A (en) * | 2009-06-09 | 2009-10-28 | 上海亚尔光源有限公司 | Metal halogen lamp electrode component with extra small power |
| CN203265906U (en) * | 2013-05-07 | 2013-11-06 | 上海亚尔光源有限公司 | Electrode assembly for vehicle metal halide lamp |
| CN104810237A (en) * | 2015-04-23 | 2015-07-29 | 浙江奇达光源有限公司 | Spherical infrared reflection halogen bulb with exhaust pipe |
Non-Patent Citations (1)
| Title |
|---|
| 中国机械工程学会焊接学会编: "《焊接手册 第2卷 材料的焊接》", 31 October 2014 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113643958A (en) * | 2020-04-27 | 2021-11-12 | 常熟林芝电子技术有限公司 | Method for improving light distribution performance of halogen lamp filament for vehicle |
| CN112975209A (en) * | 2021-03-10 | 2021-06-18 | 嘉兴市光泰照明有限公司 | Halogen lamp filament resistance welding mud and preparation method and application thereof |
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Application publication date: 20171229 |
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