Lampholder with safety cooling holes

Lampholder with safety cooling holes

  • CN 2,151,550 Y
  • Filed: 05/27/1993
  • Issued: 12/29/1993
  • Est. Priority Date: 05/27/1993
  • Status: Active Grant
First Claim
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1. , a kind of shell of lamp base that is used for the electric ballast of fluorescent lamp, it comprises housing, lamp holder and lamp holder frame, described housing lower end has the structure suitable with fluorescent tube, described housing upper end is provided with the lamp holder frame, lamp holder frame upper outside disposes described lamp holder, the interior space of the shell of lamp base that described housing and described lamp holder frame form can be in order to install electric ballast, it is characterized in that, described lamp holder frame is cylindrical, its upper outside is connected with described lamp holder, and its underpart opening part stretches out along the vertical direction of the columnar central axis of described lamp holder frame and forms an annular flange;

  • Described housing upper end is provided with a manhole, and described lamp holder frame lower cylindrical is linked in the manhole of described housing coaxially and makes its described annular flange be positioned at the inside of described housing;

    The diameter of the described manhole of described housing makes the manhole of described housing, described lamp holder frame lower cylindrical and described annular flange constitute the circular bending channel of an outside space to the inner space of described shell of lamp base greater than the overall diameter of the described lower cylindrical of described lamp holder frame;

    Described lamp holder frame is fixed together by connector and described housing.

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