JP3171303U - Lighting unit - Google Patents

Abstract

Provided is a lighting unit for a flashlight that can irradiate a wide range by using a flat type LED and uses a small number of batteries. An illumination unit that uses a dry cell, and includes a flat LED 1 that emits light at a wide angle, and a single dry cell 2 that serves as a power source for the flat LED 1. Further, a booster circuit 3 that boosts the voltage by setting the secondary side voltage as a voltage necessary for driving the flat LED 1 and setting the primary side voltage as the voltage of the dry battery with the secondary side voltage as a reference. Have. [Selection] Figure 1

Description

  The present invention relates to an illumination unit that uses a minimum number of dry batteries that are optimal for flashlights and the like.

When the Great East Japan Earthquake occurred, a large-scale blackout accident occurred, and the victims were forced to live without light. One of the causes is dry batteries. Generally, a single flash battery is used for a commercially available flashlight, and many of the single dry batteries are required, and 8 batteries are required, and the production of single dry batteries is another type of dry battery. This is due to the fact that there are few.
The above-mentioned dry batteries using single batteries have a problem that the continuous use time is short with respect to the proportion of single single batteries used in large quantities. In order to solve these problems, various flashlights using LEDs have been developed (Patent Documents 1 to 7).

ACT 6-54102 Utility Kaihei 7-32801 JP-A-9-63301 JP 2000-90885 A JP 2001-105340 A JP 2007-5113 A Utility model registration No. 3124830

  When the standard of the rated voltage of the LED is examined, the rated voltage is set to 3.2 to 3.4 V. Therefore, the flashlight using the LED is based on the assumption that two 1.5 V dry batteries are used. Has been developed. This is also apparent from Patent Documents 1-7.

  Flashlights are not always used, but they may be used to obtain a level of brightness that can alleviate fears in the dark, for example, in the event of a power failure due to a lightning strike or earthquake. Many. Considering this, it is required to be an energy-saving type that does not occupy more space than necessary for carrying or storing, and can be used continuously for a long time.

However, when an LED is used, since the rated standard of the LED is set to 3.2 to 3.4 V, it is necessary to use at least two 1.5 V dry batteries as a dry battery. There was a limit to reducing the number of dry batteries used. Therefore, when carrying or storing, it is necessary to secure a space for two dry batteries at the minimum, and there is a limit to improving portability and storage.
Further, as a LED used for a flashlight, a bullet-type LED is generally used, but this bullet-type LED is large in size and has a strong light straightness, so that the irradiation range is narrow and the obtained light is dark. There was a problem.

  An object of the present invention is to provide an illumination unit that uses a minimum number of dry batteries that is optimal for a flashlight or the like.

In order to achieve the above object, a lighting unit according to the present invention is a lighting unit using a dry cell,
A flat LED that emits light over a wide angle;
One dry battery that powers the flat LED;
A voltage boosting circuit for boosting the voltage by setting the secondary side voltage as a voltage necessary for driving the flat type LED, setting the primary side voltage as the voltage of the dry battery with reference to the secondary side voltage, and It is a feature.

  As described above, according to the present invention, by adopting a configuration in which the voltage is boosted, the number of dry batteries used is reduced to one of the minimum number, and by boosting the voltage of one dry battery, the rated voltage is reduced. The effect is that a flat LED having a voltage of one or more dry batteries can be turned on.

It is a perspective view which shows the use condition of the illumination unit which concerns on embodiment of this invention. (A) is the perspective view which looked at the structure of the illumination unit which concerns on embodiment of this invention from the flat type LED side, (b) is the perspective which looked at the structure of the illumination unit which concerns on embodiment of this invention from the dry cell side. FIG. It is a figure which shows the electric circuit of the illumination unit which concerns on embodiment of this invention. It is a perspective view which shows the use condition of the illumination unit which concerns on embodiment of this invention. It is a perspective view which shows the use condition of the illumination unit which concerns on embodiment of this invention. It is a perspective view which shows the example of a change of the illumination unit which concerns on embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  An illumination unit according to an embodiment of the present invention is intended for an illumination unit using a dry cell. As shown in FIGS. 1 and 2, as a basic configuration, the flat LED 1 that emits light at a wide angle; One dry battery 2 that powers the flat LED 1 and the secondary side voltage as a voltage necessary for driving the flat type LED 1, and the primary side voltage is set to the voltage of the dry battery 2 with the secondary side voltage as a reference. The voltage boosting circuit 3 boosts the voltage.

  More specifically, the flat LED 1 has a shape such as a square shape or a round shape, and has a characteristic of emitting light at a wide angle when light is emitted. And the said rated voltage of the said flat type LED1 is set to 3.2-3.4V, and it is requested | required to use by this specification.

In the present embodiment, a single 1.5V dry battery 2 is used as a power source for the flat LED 1, and the flat LED 1 is lit by the single 1.5 V dry battery 2.
The dry battery 2 in this embodiment uses a dry battery whose dimensions and voltage are standardized by IEC 60086 (JIS C 8500 in Japan) of the International Electrotechnical Commission. Either AAA or AAA batteries are used. In this embodiment, dry batteries of various sizes can be used, but the number used is one.

As described above, since the rated voltage of the flat LED 1 is set to 3.2 to 3.4 V, the flat LED cannot be lit with a single 1.5 V battery. This is clear from the fact that any of the above-mentioned patent documents uses two dry batteries.
Therefore, in this embodiment, a technique for boosting the voltage is used. The technique of boosting the voltage is already known and is a well-known technique, but the technical significance of boosting the voltage will be considered.
The known booster circuit is a circuit technology intended to boost the voltage on the primary side to a voltage required by the load on the secondary side and supply it from the primary side to the secondary side.
The circuit technology is to set the secondary side voltage with reference to the primary side voltage, but this embodiment sets the primary side voltage with reference to the secondary side voltage. The idea of applying the technology of boosting is completely contradictory.
More specifically, “the rated voltage of the flat LED 1 is 3.2 to 3.4 V, and since this rated voltage is standardized, this rated voltage cannot be varied. In the case of the standard of “fixed”, since the secondary side voltage is already fixed, that is, determined in the circuit technique, the primary side voltage does not need to be a problem.
On the other hand, the present embodiment is based on the idea of setting the primary side voltage on the basis of the secondary side voltage. Therefore, the primary side voltage becomes a problem, and the secondary side flat LED 1 is driven. Therefore, the primary side voltage for obtaining the voltage required for the above is designed.
Therefore, in the present embodiment, the secondary side voltage of the booster circuit 3 is set to a voltage necessary for driving the flat LED 1, and the primary side voltage is set to 1.5 V on the basis of the secondary side voltage to boost the voltage. Since the primary voltage of the booster circuit 3 is set to 1.5V, one dry battery (1.5V) is used as a power source showing a voltage value of 1.5V.
That is, the booster circuit 3 in the present embodiment sets the secondary side voltage as a voltage necessary for driving the flat LED 1 and sets the primary side voltage as the voltage of the dry battery 2 with respect to the secondary side voltage, It is constructed as a booster circuit 3 that boosts the voltage.
Therefore, in the present embodiment, one dry battery 2 can be used as the power source of the primary voltage of the booster circuit 3, and the secondary voltage becomes a voltage necessary for driving the flat LED 2. Thus, it is possible to reduce the number of dry batteries 2 used to one, which is the minimum number.

As described above, in this embodiment, by combining one 1.5 V dry battery 2, the booster circuit 3, and the flat LED 1, the number of dry batteries used is minimized, and the driving of the flat LED 1 is performed. The flat LED 1 is turned on to emit light at a wide angle and diffused.
When a bullet-type LED is used, the light emitted from the bullet-type LED is light that travels straight without diffusing, so it is irradiated with a spot, and in order to obtain the required irradiation range, For example, 8 to 10 pieces are required, but in this embodiment, since flat type LEDs are used, even if the number used is half, the irradiation is wider than 8 to 10 round type LEDs. A range can be secured. Note that the number of flat-type LEDs 1 used in the present embodiment is not limited to five, but may be increased or decreased according to the required illuminance.
By the way, in this embodiment, when one 1.5V dry battery 2 and two flat LEDs 1 are combined and continuously used with an AA dry battery, it can be used continuously for 120 hours. When the number of type LEDs is five, the result is that continuous use is possible for about 50 hours.

  As shown in FIG. 3, when five flat LEDs 1 are used, the five flat LEDs 1 are connected in parallel to the output side of the booster circuit 3, and The flat LED 1 is arranged in a cross shape to improve the light diffusibility. Further, a switch 4 for turning on / off the power is provided between the dry cell 2 and the booster circuit 3.

Further, as shown in FIGS. 2A and 2B, the flat LED 1 and the booster circuit 3 are mounted on a substrate 5, and the substrate 5 is arranged along the peripheral surface of the dry battery 2. As an example, as shown in FIGS. 2A and 2B, a plate-like substrate is used as the substrate 5, and the substrate 5 is arranged along the peripheral surface of the dry cell 2. Further, a film-like substrate may be used as the substrate 5, and the film-like substrate 5 may be disposed along the peripheral surface of the dry cell 2 by attaching the film-like substrate 5 to the dry cell 2. It is.
As shown in FIGS. 2A and 2B, when a plate-like substrate (or film-like substrate) is used as the substrate 5, the flat LED 1, the booster circuit 3, and the switch 4 are mounted on one surface of the substrate 5, The battery holder 7 is mounted on the other surface of the substrate 5, and the battery 5 is held by the battery holder 7, whereby the substrate 5 is arranged along the peripheral surface of the dry battery 2.

  The lighting unit of this embodiment (FIGS. 2A and 2B) in which the flat LED 1 and the booster circuit 3 are mounted on a substrate 5 and the substrate 5 is disposed along the peripheral surface of the dry cell 2 is shown in FIG. As shown in FIG. 1, it can be constructed as a stand-type decorative lighting fixture by being incorporated in a transparent or translucent container 8 such as an empty bottle. In addition, as a container 8, various containers other than an empty bottle can be used, and further, what incorporates the illumination unit is not limited to the container 8.

The lighting unit of this embodiment (FIGS. 2A and 2B) in which the flat LED 1 and the booster circuit 3 are mounted on a substrate 5 and the substrate 5 is disposed along the peripheral surface of the dry cell 2 is shown in FIG. The construction is not limited to that shown in FIG.
The lighting unit of this embodiment (FIGS. 2A and 2B) in which the flat LED 1 and the booster circuit 3 are mounted on a substrate 5 and the substrate 5 is disposed along the peripheral surface of the dry cell 2 is shown in FIG. As shown in FIG. 4 and FIG. 5, a single dry battery 2 may be housed in a package 6 that can be accommodated.
When the lighting unit is installed in the package 6, as shown in FIG. 4, the surface 6 a of the package 6 covering the front surface of the flat LED 1 is subjected to a semi-transparent fogging treatment 9 to thereby form a fogging treatment. 9, the surface 6a of the packaging body 6 that has been subjected to 9 may be formed into a concavo-convex pattern to improve the diffusion range of the light emitted from the flat LED 1. In addition, the operation part of the switch 4 makes a hole 6b in the surface 6a of the packaging body 6 and exposes it to the outside to facilitate the operation.
Further, when it is desired to maintain the illuminance of the light emitted from the flat LED 1, the surface 6a of the package 6 may be made transparent as shown in FIG.
Further, as shown in FIG. 5, a tag 10 may be attached to a part of the package 1, and the tag 10 may be hooked on a hook of a merchandise display shelf so as to be displayed as a merchandise. It may be easy to attach and carry.

In the example shown in FIGS. 4 and 5, the structure of the packaging body 6 is configured as a rectangular parallelepiped cylinder. However, the packaging body 6 may be configured as a cylindrical cylinder. As long as it has a capacity capable of accommodating one dry battery 2, the shape may be any shape, and the portion corresponding to the flat LED 1 of the package 6 is formed to be transparent or semi-transparent so as to transmit light. It only needs to have transparency. Here, the capacity of the package 6 that can accommodate one dry battery 2 means that a single dry battery 2 can be accommodated including the substrate 5 on which the flat LED 1 and the booster circuit 3 are mounted. I mean. This is because the height of the flat LED 1 is low, so that the protruding amount of the flat LED 1 from the substrate 5 can be suppressed, and the substrate 5 is arranged along the peripheral surface of the dry battery 2. This is because the degree of bulkiness is low.
Further, a company logo or advertisement may be printed on the surface of the package 6 or the package 6 itself containing the dry battery 2 may be used as a campaign good.

Next, a modification example of the illumination unit according to the present embodiment will be described with reference to FIG. In the above description, as shown in FIGS. 1 to 5, an illumination element (flat LED, booster circuit) is mounted on one substrate 5 for one dry battery 2, and this is placed around the dry battery 2. Although the example of arrangement | positioning was shown, the structure which arrange | positions flat type LED1 around the one dry cell 2 is not restricted to this.
That is, as shown in FIG. 6, the flat LED 1, the booster circuit 3 and the switch 4 are mounted on one surface of one substrate 5, and the battery holder 7 is mounted on the other surface of the substrate 5. Then, the dry cell 2 is held and the substrate 5 is arranged around the dry cell 2.
Further, in the embodiment shown in FIG. 6, three substrates 5a having the same size as the substrate 5 are prepared, and the flat LED 1a and the booster circuit 3a are mounted on one surface thereof, and the three substrates 5a and These four substrates 5, 5 a are arranged in the circumferential direction of one dry cell 2 by combining the substrate 5 in a cylindrical shape so as to surround the periphery of the dry cell 2.
In this case, the plurality of flat LEDs 1a mounted on the substrate 5a are connected in parallel to the secondary side of the corresponding booster circuit 3a (see FIG. 3).

  Further, the booster circuits 3 and 3 a mounted on the substrates 5 and 5 a are connected in parallel to one dry battery 2 through the switch 4. Therefore, when the switch 4 is turned on, a primary voltage is supplied from one dry battery 2 to the primary side of the booster circuits 3 and 3a, and the voltage is boosted by the respective booster circuits 3 and 3a. The flat LEDs 1 and 1a mounted on 5a are lit.

  In the embodiment shown in FIG. 6, a plate-like substrate is used as the substrates 5 and 5a, but a film-like substrate may be used instead. Moreover, in order to arrange | position flat type LED1, 1a in the circumferential direction of the one dry battery 2, although the four board | substrates 5 and 5a were used, it is not restricted to this. In short, as long as the flat type LEDs 1 and 1a can be arranged in the circumferential direction of one dry battery 2, the number of substrates is not limited.

  As described above, in the embodiment shown in FIG. 6, the substrates 5 and 5 a on which the illumination element (flat LED, booster circuit) is mounted around one dry battery are arranged in the circumferential direction of one dry battery 2. The flat LEDs 1, 1a are diffused radially at a wide angle with the single dry battery 2 as the center, and the light irradiation direction becomes non-directional.

  As described above, according to the embodiment of the present invention, the secondary side voltage of the booster circuit is set to a voltage necessary for driving the flat type LED, and the primary side voltage is set to 1.5 V based on the secondary side voltage. The voltage is boosted, and by setting the primary side voltage of the booster circuit to 1.5V, a single dry battery (1.5V) is used as a power source showing a voltage value of 1.5V. The number of dry batteries used can be reduced to the minimum number.

  Furthermore, according to an embodiment of the present invention, the flat LED and the booster circuit are mounted on one surface of the substrate, the battery holder is mounted on the other surface of the substrate, and the dry battery is held in the battery holder, thereby Since the substrate is arranged along the peripheral surface of the dry battery, it is possible to construct a lighting unit within the range of the dry battery size, the size of the lighting unit can be reduced, and even if this lighting unit is assembled to the specification of the flashlight, The size of the flashlight can be reduced, and portability and storage can be improved.

  Furthermore, since it is excellent in portability and storage property, it can be always carried in a pocket or back. Furthermore, the combination of two flat LEDs and one AA battery can be used continuously for 120 hours. For example, if it is used for 8 hours a day, it can be used for about 15 days or more. Can be used as an electric light. Moreover, since the actual selling price of one AA battery is about 25 to 30 yen, it can be provided as an inexpensive flashlight.

  In addition, the flat LED emits light at a wide angle, so it has a wide diffusion range and can enjoy reading while power is interrupted, such as a power outage. It can serve as a lamp required to inform other vehicles of the existence of the. Furthermore, it can be used in various ways, such as being able to easily find the keyhole of the door by using it for lighting when going home at night.

  Furthermore, not only can it be constructed as a decorative lighting fixture by building a flat type LED and a booster circuit on a substrate and constructing the substrate as a lighting unit arranged along the peripheral surface of the dry cell, For example, it can be constructed as an emergency lighting device by incorporating it into a transparent or translucent empty bottle in an emergency.

Further, when the lighting unit is installed in the package, the surface of the package that covers the front surface of the flat LED is subjected to a translucent fogging treatment so that the surface of the package that has been subjected to the fogging treatment is uneven. A pattern can be formed to improve the diffusion range of light emitted from the flat LED.
Furthermore, the illuminance of light emitted from the flat LED can be maintained by making the surface of the package transparent.

  Furthermore, the irradiation range can be adjusted depending on the number of flat LEDs used, and illumination having a necessary illuminance can be ensured by appropriately combining these illumination units.

  Further, two or more substrates on which flat LEDs and booster circuits are mounted are arranged in the circumferential direction of the dry cell, and the booster circuits on these substrates are connected in parallel to one dry cell, so that the light irradiation direction is eliminated. Directivity can be achieved, and the irradiation range of one dry battery can be further expanded.

  As described above, according to the present invention, by adopting a configuration in which the voltage is boosted, the number of dry batteries used is reduced to one of the minimum number, and the voltage of one dry battery is boosted to thereby form a flat type. The LED can be turned on, which contributes to ecology.

1,1a Flat LED
2 Battery 3, 3a Booster circuit 4 Switch 5, 5a Substrate 6 Packaging

Claims (3)

A lighting unit using dry batteries,
A flat LED that emits light over a wide angle;
One dry battery that powers the flat LED;
A voltage boosting circuit for boosting the voltage by setting the secondary side voltage as a voltage necessary for driving the flat type LED, setting the primary side voltage as the voltage of the dry battery with reference to the secondary side voltage, and Characteristic lighting unit.   The flat LED and the booster circuit are mounted on one surface of the substrate, a battery holder is mounted on the other surface of the substrate, and the dry battery is held in the battery holder, whereby the substrate is moved along the peripheral surface of the dry battery. The lighting unit according to claim 1, wherein the lighting units are arranged in a row.   In addition to the substrate, at least one substrate on which the flat LED and the booster circuit are mounted is disposed in the circumferential direction of the dry cell, and the booster circuit of the substrate is connected in parallel to the single dry cell. Item 3. The lighting unit according to Item 2.

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