CN201315306Y

CN201315306Y - Xenon-mercury lamp for short arc vehicle

Info

Publication number: CN201315306Y
Application number: CNU2008201700557U
Authority: CN
Inventors: 佘根富; 魏兆军; 张德武
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-18
Filing date: 2008-12-18
Publication date: 2009-09-23
Anticipated expiration: 2018-12-18

Abstract

The utility model relates to a xenon-mercury lamp for a short arc vehicle. The xenon-mercury lamp comprises a quartz discharging tube. The quartz discharging tube comprises a bulb shell and extension pipes which are arranged at the two sides of the bulb shell. The extension pipes are connected with the bulb shell, electrodes are encapsulated in the two extension pipes, and the head parts of the two electrodes are stretched into the bulb shell. The xenon-mercury lamp is characterized in that: the bulb shell is composed by the connection of an upper part ellipsoid and a lower part ellipsoid, and the depth of the upper part ellipsoid is larger than that of the lower part ellipsoid; the length of an inner cavity of the bulb shell is L, the height of the inner cavity of the bulb shell is D, and D/L is equal to or larger than 0.45 and is equal to or smaller than 0.65. As the bulb shell is composed by the connection of the upper part ellipsoid and the lower part ellipsoid, the depth of the upper part ellipsoid is larger than that of the lower part ellipsoid, and D/L is equal to or larger than 0.45 and is equal to or smaller than 0.65, when the bulb shell satisfying the above conditions bridges arcs at the two electrodes, the temperature in the bulb shell can be maintained balanced, a good atmosphere can be maintained in the bulb shell, the luminous flux can be effectively and quickly increased, and a small crystallization quantity can be maintained.

Description

A kind of Xenon-mercury lamp for short arc automobile

(1) technical field

The utility model relates to a kind of Xenon-mercury lamp for short arc automobile.

(2) background technology

The short arc mercury xenon lamp has bigger advantage as automobile-used illuminating lamp than Halogen lamp LED, and its principle of luminosity is that principle of luminosity is that to utilize positive and negative electrostimulation xenon and metal halide, mercury etc. to produce chemical reaction luminous.Secondary energy sources crisis in recent years and and the environmental pollution that increasingly sharpens force the understanding of people to the importance that improves energy savings; in addition along with the use of highway and high-grade highway; the raising development of automotive performance is maked rapid progress; require the irradiation distance of automobile-used lighting source farther, the irradiation photochromic more comfortable; and the definition in area to be illuminated territory is higher; the glow discharge spot lamp of comparing has higher luminous efficiency and longer useful life, and is photochromic better.Short arc mercury xenon lamp irradiation distance is farther, irradiation is photochromic more comfortable, and the definition in area to be illuminated territory is higher, has higher luminous efficiency and longer useful life, and is photochromic better.

Existing Xenon-mercury lamp for short arc automobile comprises quartz discharge tube, quartz discharge tube comprises cell-shell and is positioned at the cell-shell both sides and connected extension, all be packaged with electrode in two extensions, the head of two electrodes stretches in the described cell-shell, charge into high-pressure xenon being operated in cell-shell inside, and charge into mercuryvapour and metal halide.

Because electric arc can be bent upwards during two arc-spark stand arcs, and the cell-shell of discharge tube is cylindrical, therefore the upper temp of the inwall of cell-shell inner chamber rises very fast, and the cell-shell inner chamber the temperature of lower of inwall rise slower, the cell-shell temperature inside is inhomogeneous, therefore atmosphere in the image cell-shell have influence on the rising of luminous flux behind the arc-spark stand arc.

(3) summary of the invention

In order to overcome the above-mentioned deficiency of existing Xenon-mercury lamp for short arc automobile, the utility model provides a kind of Xenon-mercury lamp for short arc automobile that can promote luminous flux after luminous flux produces rapidly.

The technical scheme in the invention for solving the technical problem is: a kind of Xenon-mercury lamp for short arc automobile, comprise quartz discharge tube, described quartz discharge tube comprises cell-shell and is positioned at the cell-shell both sides and connected extension, all be packaged with electrode in two extensions, the head of two electrodes stretches in the described cell-shell, described cell-shell is joined by top spheroid and lower part spheroid and constitutes, and the degree of depth of top spheroid is greater than the degree of depth of lower part spheroid; The length of the inner chamber of cell-shell is L, and the height of the inner chamber of cell-shell is D, 0.45≤D/L≤0.65.Top spheroid described here is meant that the top of cell-shell is a part spheroid but not a complete spheroid, and lower part spheroid described here is meant that the bottom of cell-shell is a part spheroid but not a complete spheroid.

Further, the wall thickness of the top spheroid between two electrodes is greater than the wall thickness of top other parts of spheroid, and the wall thickness of the top spheroid between two electrodes is greater than the wall thickness of top other parts of spheroid.

Further, described extension is a quartz plate, is provided with molybdenum foil in the described quartz plate, described molybdenum foil and the welding of described electrode.

Further, the distance between the top of described two electrodes is 1～5mm.

Using method of the present utility model is identical with existing Xenon-mercury lamp for short arc automobile.

The beneficial effects of the utility model are: 1. constitute owing to cell-shell is joined by top spheroid and lower part spheroid, the degree of depth of top spheroid is greater than the degree of depth of lower part spheroid, and 0.45≤D/L≤0.65, the cell-shell that satisfies above-mentioned condition is when two arc-spark stand arcs, can keep the equilibrium of temperature in the cell-shell, keep the interior atmosphere of cell-shell preferably, luminous flux is risen accelerate, and keep less crystallization amount.2. the wall thickness of the top spheroid between two electrodes is greater than the wall thickness of top other parts of spheroid, the wall thickness of the top spheroid between two electrodes helps the balance of temperature in the further balance cell-shell like this greater than the wall thickness of top other parts of spheroid.

(4) description of drawings

Fig. 1 is a scheme of installation of the present invention.

Fig. 2 is the sectional side elevation of quartz discharge tube.

(5) embodiment

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

With reference to Fig. 1, Fig. 2, a kind of Xenon-mercury lamp for short arc automobile, comprise quartz discharge tube, described quartz discharge tube comprises cell-shell 1 and is positioned at cell-shell 1 both sides and connected extension 2, described extension 2 is a quartz plate, is provided with molybdenum foil 3 in the quartz plate, thereby described molybdenum foil 3 is encapsulated in electrode 4 in the extension 2 with electrode 4 welding, the head of two electrodes 4 stretches in the described cell-shell 1, and the distance between the top of two electrodes 4 is 4.2mm.

Described cell-shell 1 is joined by top spheroid 5 and lower part spheroid 6 and constitutes, and the degree of depth of top spheroid 5 is greater than the degree of depth of lower part spheroid 6, and the volume of cell-shell 1 is 0.02ml; The length of the inner chamber of cell-shell 1 is L, and the height of the inner chamber of cell-shell 1 is D, L=7mm, D=4.2mm, D/L=0.6.Top spheroid 5 described here is meant that the top of cell-shell is a part spheroid but not a complete spheroid, and lower part spheroid 6 described here is meant that the bottom of cell-shell is a part spheroid but not a complete spheroid.

As shown in Figure 1, using method of the present utility model is identical with existing Xenon-mercury lamp for short arc automobile, and the present invention is connected on the lamp holder 7, and the end of two electrodes 4 connects lead-in wire 9, wherein a lead-in wire directly is linked in the lamp holder 7, and another root lead-in wire penetrates insulated tube 8 backs and inserts in the lamp holder 7.

Because cell-shell 1 is joined by top spheroid 5 and lower part spheroid 6 and constitutes, the degree of depth of top spheroid 5 is greater than the degree of depth of lower part spheroid 5, and D/L=0.6, the cell-shell 1 that satisfies above-mentioned condition is when two arc-spark stand arcs, can keep the equilibrium of temperature in the cell-shell 1, keep cell-shell 1 interior atmosphere preferably, luminous flux is risen accelerate, and keep less crystallization amount.In fact, as long as satisfy 0.45≤D/L≤0.65, all can reach above-mentioned effect.

The volume of cell-shell 1 can determine according to actual needs that preferred range is 0.03ml～0.1ml, and usually the spacing of two top of electrodes of Xenon-mercury lamp for short arc automobile is about 1mm～5mm, and therefore to adjust between scope be normal to the spacing of two top of electrodes.

In the present embodiment, the thick 1.5mm of wall thickness of wall ratio top other parts of spheroid of the top spheroid between two electrodes 4, the thick 1.5mm of wall thickness of wall ratio top other parts of spheroid of the top spheroid between two electrodes 4 helps the balance of temperature in the further balance cell-shell like this.

Claims

1. Xenon-mercury lamp for short arc automobile, comprise quartz discharge tube, described quartz discharge tube comprises cell-shell and is positioned at the cell-shell both sides and connected extension, all be packaged with electrode in two extensions, the head of two electrodes stretches in the described cell-shell, it is characterized in that: described cell-shell is joined by top spheroid and lower part spheroid and constitutes, and the degree of depth of top spheroid is greater than the degree of depth of lower part spheroid;

The length of the inner chamber of cell-shell is L, and the height of the inner chamber of cell-shell is D, 0.45≤D/L≤0.65.

2. Xenon-mercury lamp for short arc automobile as claimed in claim 1, it is characterized in that: the wall thickness of the top spheroid between two electrodes is greater than the wall thickness of top other parts of spheroid, and the wall thickness of the top spheroid between two electrodes is greater than the wall thickness of top other parts of spheroid.

3. Xenon-mercury lamp for short arc automobile as claimed in claim 1 or 2 is characterized in that: described extension is a quartz plate, is provided with molybdenum foil in the described quartz plate, described molybdenum foil and the welding of described electrode.

4. Xenon-mercury lamp for short arc automobile as claimed in claim 1 or 2 is characterized in that: the distance between the top of described two electrodes is 1～5mm.

5. Xenon-mercury lamp for short arc automobile as claimed in claim 1 or 2 is characterized in that: the volume of described cell-shell is 0.03ml～0.1ml.