Cooling unit of gaseous discharge lamp in high pressure

Abstract

The cooling unit includes diversion module, and airflow generation unit. The diversion module possesses depressed part and vent holes. The depressed part is in use for holding cervical part of bowl. Being generated from the airflow generation unit, passing through vent holes, and gap between discharge lamp tube and cervical part, cooling airflow generates cooling effect on discharge zone, and cervical part of bowl. Finally, hot airflow is left through air gap between cervical part of bowl and front glass of lamp cover. Or, airflow generation unit sucks cooling airflow. Through air gap between bowl and front glass of lamp cover, cooling airflow generates cooling effect on discharge zone, and cervical part of bowl. Finally, passing through gap between tube and cervical part, hot airflow is left through the vent holes. Cooling airflow keeps bowl and discharge zone at optimal operation temperature so as to increase luminosity factor, and prolong service life.

Description

Technical field [0001] The invention relates to a high-pressure gas discharge lamp, in particular to a cooling device applied to a high-pressure gas discharge lamp group. Background technique [0002] Refer to figure 1 As shown, in the use of the existing HID Lamp (High Intensity Discharge Lamp), the discharge lamp tube 1 is installed on a ceramic seat 2 (Ceramic Seat) so that the discharge lamp tube 1 (Lamp) passes through The reflector 3 (Reflector), and the spherical discharge area 1a (DischargeVessel) is placed on the inner focal point of the reflector 3, and the light emitted by the discharge area 1a is concentratedly reflected forward through the front lamp cover glass 4 (Front Glass) project towards the front. [0003] The discharge lamp tube 1 is made of quartz glass. The maximum safe use temperature of the outer shell is recommended to be below 1050°C. Higher temperatures will cause accelerated deterioration of the quartz glass and affect the life of the discharge lamp ...

AI Technical Summary

Problems solved by technology

The size of the air channel is too small, the production cost is high, the installation is not easy, and it is also easily damaged by external forces

[0013] 2. The tubular air channel directly guides the cooling airflow to cool the discharge area 1a, which lacks a good cooling effect on the reflector 3

And the cooling of the discharge area 1a is excessively concentrated, so that the cooling capacity of the reflector 3 is insufficient, and a system fan must still be added to solve the problem that the reflective coating surface falls off due to the high temperature in the reflector 3

Therefore No. US6724147 patent case still does not really solve the cooling problem of discharge lamp tube 1 and reflector 3

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