CN203491217U - Metal halide lamp - Google Patents

Abstract

The utility model relates to the field of high-intensity discharge lamps, and provides a metal halide lamp. The metal halide lamp comprises a housing, an arc tube, a lamp holder, a first lamp holder pin and a second lamp holder pin, wherein the arc tube has a first electrode and a second electrode. The metal halide lamp further comprises a short molybdenum guide wire and a long molybdenum guide wire. One end of the short molybdenum guide wire is electrically connected to the first lamp holder pin at mechanical seal, while the other end is electrically connected to the first electrode. One end of the long molybdenum guide wire is connected to the second lamp holder pin at the mechanical seal, while the other end is electrically connected to the second electrode. The other end of the long molybdenum guide wire has a bend part forming an angle a of 18-22 degrees with a direction L perpendicular to the length direction of the second electrode. According to the utility model, the bend design of the bend part of the long molybdenum guide wire is improved, such that the long molybdenum guide wire is effectively separated from the inner wall of the housing in the confined inner space of the housing, thereby reducing the risks of contacting the wall; besides, the use of the molybdenum guide wires effectively reduces the cost of the metal halide lamp.

Description

Metal halogen lamp

Technical field

The utility model relates generally to a kind of high-voltage gas discharging light (Metal halogen lamp), relates more specifically to a kind of Metal halogen lamp with novel long molybdenum seal wire.

Background technology

At present, Metal halogen lamp is as a kind of more advanced light source, and the life-span is long, and the high-voltage gas discharging light that light efficiency is high, color rendering is good is widely used.Metal halogen lamp is that by the mixture of metal vapors and halide analyte, to come a kind of high-intensity discharge lamp of Discharge illuminating, its operation principle be breakdown and then between two electrodes, produce electric arc and luminous by being packaged in applicable admixture of gas in glass tube or earthenware (being electric arc tube).Electric arc tube is made by quartz or pottery conventionally, at every end place with electrode and to be placed on the encapsulated space that formed by transparent vitreum or ceramic body inner.In traditional Metal halogen lamp, in electric arc tube, comprise the mixture of the gas such as xenon, argon gas, mercury and metal halide.Thereby xenon is breakdown generation electric arc under high pressure, and the heat then being produced by electric arc will make mercury and metal halogen evaporate, when the pressure of the metal halide gas of these evaporations in electric arc tube raises and temperature raises, produce light.

In Metal halogen lamp, conventionally there is two electrode seal wires-long seal wire and short-length guidewires conductivity is provided.Yet, in existing Metal halogen lamp, on the one hand, the bending angle of the bending segment of one end being connected with electrode of long seal wire is less, the i.e. bending segment of long seal wire and perpendicular to the direction of the length direction of electrode or less perpendicular to the angle between the direction of the length direction of long seal wire, conventionally below 14 °, thereby the risk that exists long seal wire to encounter outer casing inner wall; On the other hand, long seal wire and short-length guidewires all make by niobium material the mechanical strength, welding performance and the degassing performance that provide good conventionally, because niobium material is somewhat expensive, therefore the cost of Metal halogen lamp cannot be reduced.

Utility model content

For this reason, advantageously, the utility model provides a kind of novel Metal halogen lamp, by changing bending segment bending degree and the constituent material of its long seal wire, and when reducing long seal wire and encounter the risk of outer casing inner wall, reduces the cost of Metal halogen lamp.

According to a kind of execution mode of the present utility model, a kind of Metal halogen lamp has been proposed, comprise shell, electric arc tube, lamp holder, the first lamp holder pin, the second lamp holder pin, electric arc tube has the first electrode and the second electrode, wherein, Metal halogen lamp also comprises short molybdenum seal wire, long molybdenum seal wire, one end of short molybdenum seal wire is electrically connected to the first lamp holder pin at machine sealing position, the other end is electrically connected to the first electrode, one end of long molybdenum seal wire is electrically connected to the second lamp holder pin at machine sealing position, the other end is electrically connected to the second electrode, wherein the direction L of the bending segment of the other end of long molybdenum seal wire and length direction perpendicular to the second electrode becomes angle a, and this angle a is in the scope of 18 °～22 °.

Preferably, above-mentioned angle a is 20 °.

Compare with conventional Metal halogen lamp, according to Metal halogen lamp of the present utility model, by improving the bending of the bending segment of long seal wire, design, make its in limited shell inner cavity space effectively away from outer casing inner wall, reduced rebuffed risk; Meanwhile, because the utility model is used molybdenum seal wire, can effectively reduce the cost of Metal halogen lamp.

Accompanying drawing explanation

Further feature of the present utility model and advantage will be understood better by the preferred implementation of describing in detail below in conjunction with accompanying drawing, in accompanying drawing, and the same or analogous parts of identical designated, wherein:

Fig. 1 is according to the schematic diagram of the Metal halogen lamp of the utility model preferred implementation.

Description of reference numerals

10 shells

11 machines seal 13 shell inner cavities

20 electric arc tubes

21 first electrode 23 second electrodes

30 lamp holders

31 first lamp holder pin 33 second lamp holder pins

40 short molybdenum seal wires

The other end of the short molybdenum seal wire in one end 43 of 41 short molybdenum seal wires

50 long molybdenum seal wires

The other end of the long molybdenum seal wire in one end 53 of 51 long molybdenum seal wires

530 bending segments

Embodiment

In the detailed description of following execution mode, with reference to the accompanying drawing that forms a part for this description, describe.Accompanying drawing shows specific execution mode in the mode of example, and the utility model is implemented in these execution modes.Shown execution mode is not for limit is according to all execution modes of the present utility model.The execution mode that is appreciated that other can be utilized, and change structural or logicality can be made under the prerequisite that does not depart from scope of the present utility model.

Referring to Fig. 1, Metal halogen lamp generally includes shell 10, be installed in electric arc tube 20 in shell 10, lamp holder 30, the first lamp holder pin 31, the second lamp holder pin 33, as the short molybdenum seal wire 40 of the first support, as the long molybdenum seal wire 50 of the second support.Shell 10 is envelope of quartz glass normally.Electric arc tube 20 is generally highly purified transparent material, for example quartzy or ceramic, is filled with for luminous admixture of gas in it.Electric arc tube 20 has the first electrode 21 and the second electrode 23 that is positioned at its two ends, is wherein connected to respectively short molybdenum seal wire 40 and long molybdenum seal wire 50, and the region between two seal wires is region of discharge.

As shown in Figure 1, one end 41 of short molybdenum seal wire 40 is sealed 11 places at machine and is electrically connected to the first lamp holder pin 31, and the other end 43 is electrically connected to the first electrode 21; One end 51 of long molybdenum seal wire 50 is sealed 11 places at machine and is electrically connected to the second lamp holder pin 33, and the other end 53 is electrically connected to the second electrode 23, thereby makes two seal wires form and to be electrically connected to the external world.It should be noted that, the above-mentioned machine envelope of mentioning 11 be the sealing region of general flat, and the shell of this location is flat by exclusive clamps mold pressing after high-temperature fusion, and itself and the machine lamp holder pin in sealing is combined together, thereby realizes the vacuum seal of whole Metal halogen lamp.

Again as shown in Figure 1, in the present embodiment, in order to make the bending segment 530 of the other end 53 of long molybdenum seal wire 50 leave the inwall of shell 10 as far as possible, the bending segment of long molybdenum seal wire 50 530 is bent compared with the direction of the more close electric arc tube 20 of prior art, strengthen bending segment 530 towards the back bending degree of long molybdenum seal wire 50, make the direction L of the bending segment 530 of long molybdenum seal wire 50 and length direction perpendicular to the second electrode 23 become angle a.This angle a is in the scope of 18 °～22 °.This angle a is preferably 20 °.

In addition, should be understood that, at seal wire, after niobium seal wire of the prior art changes the molybdenum seal wire in present embodiment into, via suitable cleaning procedure and welding procedure, can reach the performance of similar niobium seal wire completely.

Below technology contents and the technical characterstic of specific embodiment of the utility model have been disclosed; yet be appreciated that; under creative ideas of the present utility model; those skilled in the art can make various changes and improve the combination of above-mentioned disclosed various features and the feature clearly not illustrating at this, but all belongs to protection range of the present utility model.The description of above-described embodiment is exemplary and not restrictive.

Claims (2)

1. a Metal halogen lamp, comprise shell (10), electric arc tube (20), lamp holder (30), the first lamp holder pin (31), the second lamp holder pin (33), described electric arc tube (20) has the first electrode (21) and the second electrode (23), it is characterized in that, described Metal halogen lamp also comprises short molybdenum seal wire (40), long molybdenum seal wire (50), one end (41) of described short molybdenum seal wire (40) is located to be electrically connected to first lamp holder pin (31) other end (43) in machine envelope (11) and is electrically connected to the first electrode (21), the second lamp holder pin (33) is located to be electrically connected in machine envelope (11) in one end (51) of described long molybdenum seal wire (50), the other end (53) is electrically connected to the second electrode (23), the bending segment (530) of the described other end (53) of wherein said long molybdenum seal wire (50) becomes angle a with the direction L of the length direction perpendicular to described the second electrode (23), and described angle a is in the scope of 18 °～22 °.

2. Metal halogen lamp according to claim 1, is characterized in that, described angle a is 20 °.

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