CN102110579A

CN102110579A - Novel ceramic-metal composite light source

Info

Publication number: CN102110579A
Application number: CN2009103120521A
Authority: CN
Inventors: 戴建国
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-12-23
Filing date: 2009-12-23
Publication date: 2011-06-29

Abstract

The invention provides to a novel high-efficient long-life light source. The basic structure of the light source is similar to the structures of a ceramic metal halide lamp and a long-life high pressure sodium lamp on the market at present. Primarily, a ceramic arc pipe in a vacuum glass pipe is lengthened to be 80 mm, the diameter is enlarged to be 8.5 mm, the load-bearing capacity of the wall of the ceramic arc pipe is enhanced, and the light-emitting area is enlarged to improve the intensity of illumination; single-side welding usually used for a thermal-isolating sheet is changed into double-side pressing welding, so that oxidation falling due to spot welding is prevented; the integral vacuum glass pipe is lengthened and thickened, so that the length of the glass pipe reaches 120 mm, the diameter reaches 23 mm, and the service life is prolonged to be more than 32,000 hours; and the power input mode of the light source is that: a dot-mode conduction mode usually used at the two ends of the light source is improved into a stamping riveting high-temperature-resistant silica gel power wire conduction mode.

Description

A kind of new Ceramic Composite metal light source

Technical field

Patent of the present invention relates to a kind of efficient new lighting source, is applied to indoor, outdoor lighting place.

Background technology

The present street lamp more energy-conservation---Ceramic Composite metal street lamp than LED, it is to grow up on the basis of high-pressure sodium lamp and quartz metal halide lamp, mainly has following advantage: 1. light source life long (12000-15000 hour) was guaranteed more than 3 years; Luminous efficiency higher (＞90lm/W); Life period colour temperature stability good (+/-200K between), and the colour temperature consistency between the light source is better; 4. stable lumen output; 5. the light source physical dimension is compacter; 6. it is available to have two kinds of colour temperatures of 3000K and 4200K, and the quality of color rendering properties of light source good (ra80-90) color rendering is also relevant with the tube wall temperature of electric arc tube etc.So the multiple metal street lamp of present pottery is a development trend, will certainly replace tungsten halogen lamp, incandescent lamp on a large scale, have only on this basis development again to improve, just more possess the market competitiveness.

Summary of the invention

The objective of the invention is at existing Ceramic Composite metal road-light light-source life-span long (12000-15000 hour) not oversize and luminous efficiency (＞90lm/W) not high enough, relevant improvement scheme is proposed, so as to reach the life-span more than 32000 hours and luminous efficiency greater than 105lm/W.

The object of the present invention is achieved like this: described light source inner ceramic electric arc tube adds and grows to 80mm and enlarged diameter to 8.5mm, and than the long 20-30mm of common Metal halogen lamp, diameter will big 2mm; The normally used single-sided welding of heat shield welding manner changes two-sided the pressure into and welds; Whole glass tube with vacuum adds bulk processing, makes its glass pipe range 120mm, and diameter 23mm is than long 30-45mm of common length and the big 2-3mm of diameter; Described light source input power mode is the contact conduction that the light source two ends are used always to be improved as punching press rivet high temperature resistant silica gel power line conduction.

Technique effect of the present invention is: described light source inner ceramic electric arc tube adds and grows to 80mm and enlarged diameter to 8.5mm, strengthens its wall load-bearing capacity, and light-emitting area strengthens and promoted illuminance simultaneously; The normally used single-sided welding of described heat shield welding manner changes two-sided the pressure into and welds, and prevents that means of spot welds from causing oxidation to take off; Described whole glass tube with vacuum adds bulk processing, makes its glass pipe range 120mm, and diameter 23mm increases the service life to more than 32000 hours; Described light source input power mode is the contact conduction that the light source two ends are used always to be improved as punching press rivet high temperature resistant silica gel power line conduction, strengthens its reliability.

Below in conjunction with the embodiment in the accompanying drawing the present invention is described in further detail, but does not constitute any limitation of the invention.

Description of drawings

Fig. 1 is the schematic appearance of embodiment.

Fig. 2 is the structural representation of embodiment.

1 is that ceramic fixed pivot, 2 is that pressure welding contact, 3 is that contact conductor, 4 is that heat shield, 5 is that contact conductor, 6 is that ceramic plug, 7 is that ceramic arc tube, 8 is that complex halide, 9 is that sheet metal, 10 is that vacuum tank, 11 is that steam vent, 12 is that glass tube, 13 is that glass fixed terminal, 14 is that high temperature resistant silica gel power supply lead wire, 15 is an anodic-cathodic among the figure.

Embodiment

Referring to Fig. 1 and Fig. 2, present embodiment comprises a ceramic arc tube (7), ceramic arc tube is made by translucent polycrystalline alumina ceramic, be filled with the agent of mercury sodium, can produce the very mercury sodium vapor of high pressure, filament is made spirality by tungsten filament or is woven into the shape of the alkaline earth oxide that can store some, when the filament adstante febre, and the alkaline earth oxide emitting electrons.Bimetallic effect is: after lamp inserts power supply, electric current forms path through ballast, thermal resistance, bimetal leaf, after the thermal resistance heating, bimetal leaf disconnects, the moment self induction electromotive force that is produced by ballast makes the interior ionized inert gas disruptive discharge of pipe, after temperature raise, mercury sodium made sodium become gaseous state discharge and generation high light also along with the gasification discharge.Rare metal contact conductor (15) and heat shield (4) are drawn in two ends, the glass tube (12) that skin has high boron glass to make, the centre is vacuum tank (10), two end electrodes lead-in wire (3) welding high-temperature resisting silica gel power line (14) input power supply, its basic structure is similar to present ceramic gold-halogen lamp and long-lived high-pressure sodium lamp on the market, be primarily aimed at the ceramic arc tube size, the heat shield welding manner, whole glass tube with vacuum outside dimension and light source input power supply connected mode are improved, promote illuminance, increase the service life, reduce use cost, reduce the power supply loose contact.This light source is a kind of high-strength gas discharge bulb.Present embodiment all adopts existing mature technology, technology, does not repeat them here.

Claims

1. new Ceramic Composite metal light source, it is characterized in that: this light source comprises a ceramic arc tube, rare metal contact conductor and heat shield are drawn in the ceramic arc tube two ends, the glass tube that skin has high boron glass to make, the centre is a vacuum tank, two end electrodes wire bonds glue power line input power supply, its basic structure is similar to present ceramic gold-halogen lamp and long-lived high-pressure sodium lamp on the market, be primarily aimed at the ceramic arc tube size, the heat shield welding manner, whole glass tube with vacuum outside dimension and light source input power mode are improved, increase the service life, reduce use cost.

2. a kind of new Ceramic Composite metal light source according to claim 1 is characterized in that: described ceramic arc tube adds and grows to 80mm, strengthens its wall load-bearing capacity, and light-emitting area strengthens and promoted illuminance simultaneously.

3. a kind of new Ceramic Composite metal light source according to claim 1, it is characterized in that: the normally used single-sided welding of described heat shield welding manner changes two-sided the pressure into and welds, and prevents that means of spot welds from causing oxidation to take off.

4. a kind of new Ceramic Composite metal light source according to claim 1, it is characterized in that: described whole glass tube with vacuum adds bulk processing, makes its glass pipe range 120mm, and diameter 23mm increases the service life to more than 32000 hours.

5. a kind of new Ceramic Composite metal light source according to claim 1 is characterized in that: described light source input power mode is the contact conduction that the light source two ends are used always to be improved as punching press rivet high temperature resistant silica gel power line conduction, strengthens its reliability.