JPS62179779A - Unit transformer - Google Patents

Abstract

PURPOSE:To obtain a stable photoelectric conversion by providing a frame having a predetermined thickness and passing no light in the shape of surrounding the light emitting surface of a light emitting unit and the photodetecting surface of a solar cell between the unit of primary side provided with electrodes connected with an external power source and the solar cell of the secondary side at both ends of a circuit. CONSTITUTION:Solar cell connecting electrodes 8 are provided in addition to light emitting unit electrodes 7 connected with an external power source in a light emitting unit 2 and light emitting unit connecting electrodes 10 are provided in addition to solar cell electrodes 9 connected to a load in a solar cell body 3, and a plurality of the unit transformers 1 are disposed in parallel for use. The transformer 1 emits a light in a predetermined state from the unit 2 by supplying power from a suitable external power source to the unit 2, the solar cell body 3 optically coupled therewith receives a predetermined quantity of light 15 from the unit 2 on the photodetecting surface to output a predetermined DC power from the cell body 3. At this time, since a frame 4 having a predetermined thickness and passing no light 15 is disposed between the unit 2 and the cell body 3, the light 15 emitted from the unit 2 is not leaked externally. Thus, stable photoelectric conversion is performed.

Description

[Detailed description of the invention] [Industrial application field] The present invention constitutes a transformer for obtaining DC power.

It concerns unit transformers.

[Conventional technology]

In conventional transformer devices, when converting voltage from an AC power source such as a commercial power source, a transformer consisting of a coil wound around an iron core is used to transform the voltage.
When creating new DC power by stepping up or down the voltage from a suitable DC power source, the DC power is first converted to AC power by switching, and then this AC power is transferred to a transformer consisting of a coil wound around an iron core. , it was transformed.

In the transformation using this transformer, the power on the primary side supplied to the transformer must be alternating current, and changes in the magnetic flux generated by this alternating current power must induce alternating current power on the secondary side. It has a basic configuration.

In this way, the power obtained on the secondary side by the transformer is AC, so in order to convert this AC power to DC power, the AC power generated on the secondary side of this transformer must be rectified. There is a need.

However, when converting alternating current to direct current.

The converted direct current always includes an alternating current component, and this alternating current component appears in the direct current as a pulsating current.

This pulsating current that appears in the direct current obtained using a transformer and rectifier always exists, and it is currently impossible to eliminate it completely.

[Problem that the invention seeks to solve]

A conventional transformer device uses such a transformer.

Pulsating current is always included in the DC output on the secondary side,
In addition, because the primary and secondary sides of a transformer are coupled by magnetic flux, noise on the negative side is always conducted to the secondary side, and this noise always appears in the output power on the secondary side. There is a serious drawback that

Conventionally, as a method of removing this noise, it is impossible to completely remove the noise conducted to the secondary side in the wide band frequency of this noise.

There is a tedious method of providing a constant band filter and supplying primary power from which noise has been removed to a transformer.

However, due to the operating principle of the transformer described above, it is completely impossible to obtain direct current power from an alternating current source by means of a transformer, which is completely free of ripples, switching noise, and conducted noise.

Furthermore, the magnetic flux generated in the transformer also affects the surrounding environment, and the effect of this magnetic flux may have a fatal adverse effect on electronic devices such as computers that handle magnetic storage media.

For this reason, it is necessary to provide complete magnetic shielding to the transformer, and as a result, the structure of the transformer equipment using the transformer becomes complex, the shape is regulated, and the installation location is also subject to regulations. There were some problems.

[Means for solving problems]

The present invention was devised to solve the problems, drawbacks, and dissatisfied points in the conventional examples described above, and was previously filed by the same applicant as the present application as a "transformer" (Patent Application No. 024635 of 1985). This relates to the unit transformer that constitutes the unit transformer.

Hereinafter, two aspects of the present invention will be explained with reference to drawings showing embodiments of the present invention.

A unit transformer 1 according to the present invention is a unit transformer constituting a transformer including a primary side that performs an electrical-to-optical conversion operation and a secondary side that performs an optical-to-electrical conversion operation, and is a unit transformer that constitutes a transformer that includes a circuit on a printed circuit board. A number of light emitting elements 5 necessary to emit a certain amount of light or more determined according to the rating of the solar cell body 3 which is the secondary side are arranged and connected in series or in parallel or in series and parallel on the circuit 6. A light emitting body 2 having electrodes 7 connected to an external power source at both ends thereof to form a primary side;
a solar cell body 3 that constitutes a secondary side with a light-receiving surface positioned opposite to a light-emitting surface of the light-emitting body 3; With a shape that surrounds the light receiving surface of body 3.

A unit transformer consisting of a frame body 4 having a certain wall thickness and not transmitting light.

The light-emitting element 5 is not limited in its constituent objects, and may be of any type as long as it emits light using supplied power. Also, lasers, etc. can be considered.

[Effect]

Since the unit transformer 1 according to the present invention has the above-mentioned configuration, by supplying power to the light emitting body 2 from an appropriate external power source, the light emitting body 2 is caused to emit light in a constant state. The solar cell body 3 that is optically coupled to the light emitting body 2 receives a certain amount of light 15 from the light emitter 2 on its light receiving surface, and as a result, a certain amount of DC power is output from the solar cell body 3. Become.

That is, the appropriate power input to the two light emitters 2.

The solar cell body 3 transforms the voltage into a constant value of DC power and outputs it.

At this time, between the 1 light emitting body 2 and the solar cell body 3.

Since the frame body 4 that does not transmit the light 15 is arranged, the light 15 emitted from the nine light emitters 2 does not leak to the outside. As a result, stable photoelectric conversion is performed.

=6- Also, since a space is formed between the light emitting body 2 and the solar cell body 3 by the frame body 4, the light 15 emitted from one light emitting element 5 is diffused by this space and The entire body 3 can be irradiated uniformly, and stable photoelectric conversion can also be obtained thereby.

In this way, in the unit transformer 1 according to the present invention, the solar cell body 3 converts the light 15 from the light emitter 2 into electric power. It is coupled to the body 3 only by the light 15 emitted by the nine light emitters 2.

Therefore, there is no magnetic or electrical connection between the two, and therefore, the DC power generated by the solar cell body 3 is not electrically influenced by the light emitter 2 on the negative side.

Only DC power that does not include AC bones will be output as output power.

Furthermore, the light emitting body 2 only needs to emit light, and the type of electric power that drives the light emitting body 2 to emit light is not specified at all, so it does not matter whether the input is AC, DC, or variable current. , which can always output constant DC power.

Furthermore, the resulting DC power, especially the DC voltage.

The rating of the solar cell body 3 was followed. Since the value is approximately constant, it is possible to obtain a power supply voltage that is always a stable constant value, and therefore extremely safe and stable DC power can be supplied.

〔Example〕

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

Both the light emitting body 2 and the solar cell body 3 are flat rectangular shapes and are set to have approximately the same size.

The light emitter 2 has a solar cell electrode 8 in addition to a light emitting electrode 7 that connects to an external power source, and the solar cell 3 has a solar cell electrode 9 that is connected to a load and a light emitting electrode. A body connection electrode 10 is provided.

It is devised so that a plurality of unit transformers 1 can be arranged in parallel and used.

The frame body 4 has a rectangular shape corresponding to the nine light emitters 2 and the solar cell body 3, and its wall thickness is such that the light 15 emitted from the two light emitters 2 is moderately diffused and uniformly illuminates the light receiving surface. It is set as far as possible.

The inner surfaces of the light emitter 2 and the frame 4 are coated with a reflective film 11 to prevent the light 15 emitted from the light emitter 2 from being irradiated and absorbed by the light emitter 2 and the frame 4 through three reflections. There is. Conversely, an anti-reflection film 13 is coated on the solar cell 1fld on the inner surface of the solar cell body 3 in order to efficiently absorb the light 15 emitted from the 1 light emitter 2.

Further, the heat generated in the two light emitters 2 is radiated to the outer surface of the three light emitters 2. A heat sink 12 is provided.

By the way, one light emitting element 5 is an existing light emitting diode, and a unit transformer 1 configured using 16 light emitting elements 5 is as follows.
In a transformer connected 3 in parallel and 12 in series, 12
V, 6 V, 900mA, with input to approx. 22V, also.

When connected in parallel and 48 in series, an output of 24V and 300mA can be obtained with an input of 12V and 30A.

〔Effect of the invention〕

In this way, the unit transformer 1 according to the present invention has a solar cell whose primary side is a light emitter 2 driven to emit light by a Gaito power source, and whose light emitter electrode 7 operates by receiving light 15 from the light emitter 2. Since the body 3 is the secondary side, there is no magnetic flux or electrical coupling between the negative side and the secondary side, and as a result, noise on the negative side is not conducted to the secondary side, making it extremely This means that high-quality DC power can be output.

The light 15 coupling between the light emitting body 2 and the solar cell body 3 can be efficiently achieved because the light 15 is prevented from leaking to the outside by the frame body 4. This frame body 4 also functions to form a space between the three light emitters 2 and the solar cell body 3 so that the light 15 is evenly irradiated to the solar cell body 3. Stable photoelectric conversion can be obtained.

The unit transformer l according to the present invention can also obtain stable DC output power on the secondary side regardless of the type of input power on the negative side. It does not require many components such as a rectifier circuit or a smoothing circuit, and as a result, the overall configuration becomes extremely simple.

Furthermore, simply by optically coupling the two light emitters 2 and the solar cell body 3, there are no restrictions on the shapes of the two, so they can be freely molded into shapes that suit the purpose and conditions of use.

In addition, it does not generate magnetic fields or noise in the surrounding area, so it can be installed together with other electronic components even if installed in a narrow space. There is no.

As is clear from the above description, the unit transformer 1 according to the present invention can efficiently output extremely high-quality DC power without being limited by the type of external power source, and can be designed and set in any shape. Furthermore, the structure is simple, and there are no restrictions on the installation location, and it exhibits many excellent effects in terms of use, production, and handling of the 9M.

[Brief explanation of drawings]

FIG. 1 is an exploded view showing one embodiment, and FIG. 2 is a partially enlarged sectional view after assembly. Explanation of codes 1: Unit transformer, 2: Light emitter. 3: Solar cell body, 4: Frame body, 5: Light emitting element. 6: Circuit, 7: Light emitter electrode. 8: Solar cell body electrode; 9: Solar cell body electrode. 10: Light emitter connection electrode, 1: reflective film. 12: Heat sink, 13: Antireflection film 1 14: Solar cell layer, 15: Light. Procedure Neho Seisho (self-motivated),,,1 May 8, 1985

Claims (1)

[Claims] A unit transformer constituting a transformer consisting of a primary side that performs an electrical-to-optical conversion operation and a secondary side that performs an optical-to-electrical conversion operation, and a solar panel on the secondary side is installed on a circuit on a printed circuit board. A number of light-emitting elements necessary to emit a certain amount of light or more determined according to the rating of the battery body are arranged and connected in series or in parallel, or in series and parallel, and electrodes connected to an external power source are provided at both ends of the circuit. a luminous body forming a side;
a solar cell body forming a secondary side with a light-receiving surface facing the light-emitting surface of the light-emitting body; and a solar cell body disposed between the light-emitting body and the solar cell body, the light-emitting surface of the light-emitting body and the solar cell body being arranged between the light-emitting body and the solar cell body. A unit transformer consisting of a frame that surrounds the light-receiving surface, has a certain wall thickness, and does not allow light to pass through.