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Patent Searching and Data


Title:
VOLTAGE DROP DETECTOR FOR ILLUMINATION AND LIGHTING DEVICE
Document Type and Number:
Japanese Patent JP2014084013
Kind Code:
A
Abstract:

To provide a lighting device of a simple constitution giving a warning when the voltage of a battery loaded on an automobile drops, at a low cost.

A lighting device 1 including an LED light 2 taking a battery as a power supply is provided with a voltage drop detecting circuit 3 for detecting the input voltage from the battery and lighting a warning LED 18 when the voltage drops below a predetermined reference voltage. The voltage drop detecting circuit 3 is stored in a circuit storing case 7 removably fitted to a housing 4 of the LED light 2. The housing 4 includes: a pair of opposite side walls 4b and a bottom wall 4a, the upper part thereof is closed by an irradiation plate 5, and both ends thereof are closed by a pair of stop frames 8, 8 engaged with both ends. The stop frame 8 includes an engagement piece 8a inserted in a longitudinal engagement groove 9a of the housing 4, and the circuit storing case 7 is provided with an engagement piece 11a corresponding thereto and an engagement recessed part 11b in which the engagement piece 8a is inserted and mounted between the housing 4 and one of the stop frames 8.


Inventors:
GOTO KAZUYUKI
Application Number:
JP2012235235A
Publication Date:
May 12, 2014
Filing Date:
October 25, 2012
Export Citation:
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Assignee:
TAKIGEN MFG CO
International Classes:
B60Q11/00; B60Q3/06; B60R16/04
Domestic Patent References:
JP2008084802A2008-04-10
JP2006044567A2006-02-16
Attorney, Agent or Firm:
Tadashi Otsuka