JPH0443595A - Lighting apparatus - Google Patents

Abstract

PURPOSE:To obtain a lighting apparatus having no flickering to be preferable for health of men and animals, growth of plants, etc., by supplying a three-phase AC to three fluorescent lamps by star wiring. CONSTITUTION:Straight fluorescent lamps 51, 52, 53 are disposed in parallel, heating bodies on the other side of the three fluorescent lamps are connected with each other, and terminals of a three-phase AC power source are connected with the heating bodies on one side, so a three-phase AC is applied to the three fluorescent bodies by star connection. The quantity of power at an instant is the total of instantaneous power quantities for the different phases, which is constant always, so flickering is eliminated completely, and a light source of a constant power like a sun light can be obtained. A light source which is preferable for eyes and health of men and animals, growth of plants, etc., can thus be obtained. Delta connection achieves a similar effect.

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a lighting device.

[Conventional technology]

Since conventional lighting devices apply single-phase alternating current, the instantaneous effective power value fluctuates greatly and flickers are large. Therefore, it was not a very good light source for the health of humans and animals or for the growth of living things. For this reason, flicker has recently been eliminated by using single-phase alternating current that has been converted to a high frequency using an inverter as a power source for fluorescent lamps, but this has become complicated and expensive.

[Problem to be solved by the invention]

This invention was made to solve the above-mentioned problems, and aims to provide a lighting device that does not cause flickering and is very good for the health of humans and animals, the growth of plants, etc.

[Means to solve the problem]

The lighting device according to the present invention includes a three-phase AC power source, and three linear fluorescent lamps arranged in parallel to each other, the other end of which is shorted to each other, and each terminal of the three-phase AC power source is applied to one end of the fluorescent lamp. The lamp is equipped with three fluorescent lamps, and three-phase alternating current is supplied to the three fluorescent lamps through a star connection.

In the lighting device according to the present invention, instead of the star connection,
Three-phase alternating current is supplied to each linear fluorescent lamp through delta connection.

In the lighting device according to the present invention, three linear fluorescent lamps are arranged at positions corresponding to each side of an equilateral triangle, and the heating elements of the two fluorescent lamps are electrically connected to each vertex of the equilateral triangle. connect to,
Three-phase AC power is supplied to each of these connection points. In this case, the heating element at each phase feed point is 2
Although it is addressed to individuals, it is also possible to combine them into one address.

In the lighting device according to the present invention, for example, a 6-phase power supply is constructed by configuring two sets of coils for each phase of a 3-phase transformer and taking out terminals so that they are in opposite phases to each other, and a 6-phase power supply is configured. A total of seven heating elements are arranged at the apex positions and the center position of the regular hexagon, and the heating element at the center position is grounded, and the six-phase power is supplied to the six heating elements at the apex positions of the regular hexagon. Illumination is performed by generating a total of 12 arcs between the heating element and six surrounding heating elements, and between adjacent heating elements among the six surrounding heating elements.

[Effect]

In this invention, each phase of the three-phase AC current is supplied to the three fluorescent lamps through star connection or delta connection, so the sum of the instantaneous amount of electric power supplied to the three fluorescent lamps is always constant. Therefore, there is no flickering and it is safe for the eyes and health of humans and animals.
Provides a good light source for plant growth.

In this invention, three fluorescent lamps are arranged on each side of an equilateral triangle, and three-phase alternating current is supplied to the three terminals connecting each two fluorescent lamps, so that it is uniform over a large area over time. This makes it possible to provide good lighting with less heat generation and less flicker.

In addition, in this invention, heating elements are arranged at each apex and center position of a regular hexagon in one fluorescent lamp container, and 6-phase AC power is supplied to these to generate a total of 12 arcs to illuminate the lamp. Since this is done, a large area can be illuminated, and very good illumination with less heat generation and flicker can be obtained.

Moreover, the number of heating elements can be extremely small.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1(a) shows a lighting device according to a first embodiment of the present invention. In the figure, 51, 52t and 53 are linear fluorescent lamps arranged parallel to each other, and these three fluorescent lamps are arranged parallel to each other. The heating elements on the other end side are connected to each other, and each terminal of the three-phase AC tH is connected to the heating element on the one end side. In other words, in this device, three fluorescent lamps are connected by star connection.
A phase current is applied.

FIG. 15) shows a lighting device according to a second embodiment of the invention, in which the star connection of FIG. 1 is replaced by a delta connection.

Such a first. In the lighting device of the second embodiment,
(Fig. 2) instead of the conventional single-phase AC shown in Fig. 2 (a)
Since the three-phase alternating current shown in is applied, the instantaneous amount of electric power is the sum of the instantaneous electric power of each phase and is always constant, so there is no flickering at all, and a light source with constant power is obtained like sunlight. It will be done.

Therefore, a very good light source can be obtained for the eyes and health of humans and animals, and for the growth of living things in greenhouses.

FIG. 3 shows a lighting device according to a third embodiment of the invention,
In this method, three linear fluorescent lamps 51, 52, 53 are arranged at positions corresponding to each side of an equilateral triangle, and the heating elements 20 of the two fluorescent lamps are electrically connected to each other at each vertex of the equilateral triangle. Connect the terminals a, b, and c of each phase of the three-phase AC power supply to the connection points 54, 55, and 56 at each vertex position, and connect each fluorescent lamp 51.5.
2.53 is designed to supply three-phase alternating current so as to have a delta connection.

Here, in this embodiment, there are two heating elements 20 at each phase feed point because the heating elements of two fluorescent lamps are connected to each other, but this is different from the fourth embodiment shown in FIG. As shown in FIG. 3, the fluorescent lamp tubes 51, 52 and 53 are integrated into connecting tube portions 54a and 55a.

Only one heating element 20 may be disposed within 56a.

Further, as in the fifth embodiment of the present invention shown in FIG.
A total of three heating elements 20 are arranged at each point of the circumference of the annular fluorescent lamp 50 divided into three parts, and these are used as three-phase power feeding points at each annular portion 51.53 of the fluorescent lamp 50. Three-phase alternating current may be supplied so that .52 has a delta connection.

Book 3. 4th. In the lighting device of the fifth embodiment, since each phase of the three-phase alternating current shown in FIG. 2(b) is supplied to each of the three fluorescent lamps, the entire instantaneous The amount of electric power is the sum of the instantaneous amounts of electric power of each phase and is always constant, so there is no flickering at all, and the above-mentioned item 1. As in the second embodiment, a light source that is very good for the eyes and health of humans and animals, the growth of living things, etc. can be obtained.

Furthermore, in these embodiments, the three fluorescent lamps or fluorescent lamp sections are arranged to form an equilateral triangle or a large annular shape, so that illumination of a large area without creating shadows can be obtained. Moreover, it generates less heat, and 3
By using a phase power source, a vortex of waves such as a rotating magnetic field and its geomagnetic force is generated, which has a very remarkable effect on the growth of living organisms and biomass.

FIG. 6 shows a sixth embodiment of the present invention, in which a total of seven heating elements 20 are placed at the apex and center positions of a regular hexagon centered on the center of one circular flat fluorescent lamp tube 30. The heating element 20b at the center position is set as the neutral, and the terminals a, b, c, a'', b', c' of each phase of the 6-phase power supply are connected to the six heating elements 20a at each vertex of the regular hexagon. 1.2, 3, 4, 5.6, and 6 between the central heating element 20b and the six peripheral heating elements 20a.
7.8, 9, between two adjacent heating elements 20a,
10, 11, and 12, a total of 12 arcs are generated for illumination.

Here, the above six-phase power supply is constructed by winding two coils 21 and 21' in opposite directions around the iron core of each phase of the three-phase transformer 20, as shown in FIGS. 7(a) and (b). be able to.

In this way, in the device of the embodiment of the wood brush 6, the six-phase power supply shown in FIGS. 1°2.3.4,5 between the body 20a and the central heating element 20b
．． Six arcs are generated with a sequential phase shift to 6 and 6 phases, and a sequential phase shift of 7.8°, 9.10, and 11.12 is also generated between adjacent heating elements 20a at the surrounding positions. Six-phase arcs are generated, resulting in a total of 12 arcs. Therefore, this device can provide the same illuminance as a conventional arrangement of 12 fluorescent lamps. Moreover, when 12 conventional fluorescent lamps are gathered together, 24 heating elements are required, but with this device, the number of heating elements is only 7, resulting in significant material savings. It is.

Furthermore, in the device of this embodiment as well, the above-mentioned 3. 4th, 5th
As in the example above, it is possible to obtain illumination of a large area without shadows, generate less heat, have less flicker, generate a vortex of rotating magnetic fields and electromagnetic force waves, and have a remarkable effect on the growth of living organisms such as biomass. The following effects can be obtained.

Although the above description has been made for the case of fluorescent lamps, it is of course advantageous for discharge type lighting devices, incandescent lamp lighting devices, and other lighting devices.

Furthermore, in the above embodiment, by applying a three-phase power supply to three fluorescent lamps, etc., it is possible not only to eliminate flickering, but also to create a rotating magnetic field. Moreover, this is not limited to just 3 lamps, but multiples of 3 lamps such as fluorescent lamps can be supplied with multiphase alternating current in sequence, and rotating magnetic fields or electromagnetic fields can be applied in a fixed order. By generating force wave vortices, there will be no flickering and the influence of shadows will be reduced, which will be extremely effective for the growth of crops and animals.Furthermore, the cycle of this rotating magnetic field and vortex rotation can be By placing 24 fluorescent lights, 7
．． By setting it to 5 Hz, we can create better environmental waves (
I can do that.

〔Effect of the invention〕

As described above, according to this invention, three-phase alternating current is supplied to three fluorescent lamps through star connection or delta connection, so there is no flickering, which is good for the eyes and health of humans and animals, and for the growth of plants. Provides a good light source.

Further, according to this invention, three fluorescent lamps are arranged to form an equilateral triangle, and three terminals connecting each two fluorescent lamps are connected to three terminals.
Since phase current is supplied, it is possible to illuminate a large area, and good illumination with less heat generation and flickering can be obtained.

Further, according to the present invention, heat-generating lamps are arranged at each apex and center position of a regular hexagon in one fluorescent lamp container, and six
Since a total of 12 arcs are generated by supplying phase alternating current power for illumination, a large area can be illuminated, and very good illumination with less heat generation and flicker can be obtained. Moreover, it has the effect of requiring only a very small number of heating elements.

[Brief explanation of the drawing]

FIGS. 1(a) and 1(b) show the first example of this invention. A diagram showing a lighting device according to a second embodiment, FIG. 2 is a diagram showing the waveform of a three-phase AC applied to these in comparison with a single-phase AC, and FIG. 3 is a diagram according to a third embodiment of the present invention. Figures 4, 5, and 6 showing the illumination device correspond to the fourth aspect of the present invention. Fifth. FIG. 7(a) is a diagram showing a lighting device according to a sixth embodiment, and FIG. 7(a) is a diagram showing a device for creating six-phase alternating current used in the device of the sixth embodiment. FIG. 7(C) is a diagram showing this six-phase alternating current in vector form, and a diagram showing its waveform. 51, 52, 53 are linear fluorescent lamps, 54, 55°, 56 are connection points, a, b, and C are three-phase AC power terminals, a, b, c,
a', b'', c' are 6-phase AC power supply terminals, 30 is a circular flat fluorescent lamp tube, 1 to 6 are arcs, 7 to 12 are arcs, 20
is a three-phase transformer, and 21°21° is a three-phase coil. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (5)

[Claims] (1) Equipped with a three-phase AC power source and three linear illumination lights arranged in parallel to each other, the other ends of which are connected to each other, and one end of which is connected to each terminal of the three-phase AC power source, A lighting device characterized in that three-phase alternating current is supplied to the three lighting lamps by star connection. (2) The lighting device according to claim 1, characterized in that the three-phase alternating current is supplied to each linear illumination lamp by a delta connection instead of the star connection. (3) Three linear illumination lamps are arranged at positions corresponding to each side of an equilateral triangle, and the heating elements of each two illumination lamps are electrically connected at each vertex of the equilateral triangle, Alternatively, a lighting device characterized in that three-phase alternating current is supplied to a common heating element of two lighting lamps so as to have a Δ connection. (4) A total of three heating elements are arranged at each point of the circumference divided into three parts within one annular lighting lamp, and three-phase wiring is established between the three heating elements to form a delta connection. A lighting device characterized by supplying alternating current. (5) A 6-phase power supply with a phase difference of 60° between each phase is provided, and a total of 7 heating elements are arranged at the apex and center positions of a regular hexagon in one circular flat lighting lamp tube, and the lighting lamp The above 6-phase power is supplied to the 6 heating elements at the apex positions of the regular hexagon with the heating element at the center position in the tube as the neutral, and between the heating element at the center position and the 6 heating elements at the surrounding positions, A lighting device characterized in that illumination is performed by generating a total of 12 arcs between adjacent heating elements among surrounding heating elements.