JPH01302697A - Fluorescent lamp lightup device - Google Patents

Abstract

PURPOSE:To facilitate stock management of testing stabilizers and provide easy wiring by making the output ratios to the stabilizers approx. the same when a starter type fluorescent lamp 30W and a one 32W are lit up by a single lightup device. CONSTITUTION:When fluorescent lamps 30W and 32W with different lamp currents are lit up using a signal lightup device, the output ratios to the testing stabilizers are so arranged to be approx. the same. To obtain a stabilizer working both for the lamps 30W and 32W, an inverter fluorescent lamp lightup device is used. That is, the two lamps 30W and 32W with different lamp voltage can be lit up with the same inverter lightup device, and the output ratio for each lamp approx. 110% is obtained. This facilitates stock management of stabilizers and enables easy wiring.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a discharge lamp lighting device, and when fluorescent lamps having different lamp currents, 3oW and 32W, are lit by the same lighting device, the output ratio with respect to the test ballast is approximately the same. It was designed to be.

The fluorescent lamps 30W and 32W have different lamp currents and secondary voltages, with values as shown in the table below.

FCL32 is a fluorescent lamp with different characteristics.
When lit with a test ballast for FCL30/30, the result is as shown in the table below, and the rated output power cannot be obtained with the FCL30/2B lamp.

Therefore, in the past, a separate ballast was always used to light the above fluorescent lamps. However, if the same ballast could be used, it would be useful for ballast inventory management and for incorporating it into 30 W + 32 W home light fixtures. Wiring is fun when using 30W
And there will be no more 32W wiring mistakes.

In view of the above, the present invention proposes a ballast that can be used for both 30W and 32W fluorescent lamps, and employs an inverter fluorescent lamp lighting device as its means.

The reason for adopting this inverter fluorescent lamp lighting device is as follows.

(1) When a fluorescent lamp is lit at a high frequency of 20KH2 or more, the luminous flux increases by about 10% f or more compared to when it is lit at a commercial frequency for the same lamp current.

(2) Fluorescent lamps have the same tube diameter, but as the lamp current increases, the tube wall temperature increases. The most efficient tube wall temperature is around 40"C, and the efficiency decreases as the temperature rises higher.Since the tube diameters of 30W and 32W fluorescent lamps are the same, the tube wall of 30W, which has a higher lamp current, has the highest efficiency. The temperature is high.Therefore, it is thought that even if the lamp current is suppressed to 30W, the output will not drop that much.

The table below shows the tube wall temperatures when the fluorescent lamps FCL30/28 and FCL32/30 were lit using the test ballast.

Given that the ambient temperature is 25°C or higher, when fluorescent lamps FCL30/28 and FCL32/30 are lit using the inverter fluorescent lamp lighting device using the circuit diagram shown in Figure 1, the results are shown in the table below. becomes.

From this result, the fluorescent lamp FCL30. /28R inverter operation is more efficient than the FCL32/30 fluorescent lamp, resulting in less lamp current and approximately the same power ratio to the test ballast as the FCL32/3o fluorescent lamp.

As described above, by using an inverter, fluorescent lamps with different lamp currents of 30W and 32W can be lit with the same inpanitor lighting device, and the output ratio of each lamp is approximately 110.
%was gotten.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram of an embodiment of the present invention. 180. High frequency generator 2o0. fluorescent lamp 3... Chalk 408. capacitor

Claims (1)

[Claims] An inverter-type fluorescent lamp lighting device characterized in that when starter-type fluorescent lamps 30W and 32W are lit by the same lighting device, the output ratio to each test ballast is approximately the same.