JP3189299U - Lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting device which is portable and can be installed at an arbitrary place, whose lighting is controlled, and whose reliability is improved. SOLUTION: The solar panel is provided with a solar panel 1, a storage battery 4 for storing electricity obtained from the solar panel, an LED 2 that lights up by discharging from the storage battery, and a charge / discharge control circuit 3 for controlling charge / discharge of the storage battery. In the lighting device 10 in which the storage battery, the LED, and the charge / discharge control circuit are electrically connected, the charge / discharge control circuit starts discharging the storage battery after a lapse of a predetermined time after the charging of the storage battery is stopped. Control. Further, the bottom 15 of the housing 6 is provided with a hole 7 having a size capable of discharging the moisture condensed inside the housing and preventing the storage battery from falling to the outside of the housing. [Selection diagram] Fig. 1

Description

    In particular, the present invention relates to an illuminating device in which an LED (Light Emitting Diode) and a solar panel are combined.

LEDs that emit light of various colors such as red, blue, and green have been developed, and such LEDs are also used as illuminations for decoration. For example, if an LED is installed on a street tree or the like and lit, the viewer can enjoy it with a beautifully colored landscape. In recent years, lighting devices such as crime prevention lights, street lights, and garden lights using white LEDs as light sources have been developed, and the field of utilization of LEDs is expanding.

In order to turn on the LED, a power source for supplying electricity to the LED is required. Therefore, a portable power source is used when the LED is turned on mainly outdoors. By using a solar panel in particular, the solar panel can store electricity in the storage battery, and in the time when the sun goes down and darkens, the electricity stored in the storage battery is released. Lighting devices such as lighting LEDs have been developed. For example, Utility Model Registration Document 1 proposes a lighting device that can be installed at an arbitrary place using an LED and a solar panel.

Utility Model Registration No. 3172819

However, when the illuminating device according to the prior art document is used outdoors, the sun begins to sink and the storage battery is no longer charged from the solar panel, so that the discharge from the storage battery starts and the LED is turned on. Therefore, the lighting of the LED starts at an early stage after dusk. If the electricity stored in the storage battery is low, if the lighting still starts from a dimly lit time zone, even if you want to light up in the time zone when the sun is completely sunken and the surroundings are covered in darkness, There was a problem that the lights could not be lit up after running out of electricity. On the other hand, although it is possible to increase the capacity of the storage battery, in the case of the portable lighting device according to the prior art document, if the capacity of the storage battery is increased, the lighting device becomes heavier and not suitable for transport. .

In addition, when such a lighting device is used outdoors, the inside of the lighting device is condensed due to a temperature difference between the inside and the outside of the lighting device, and this water droplet (moisture) is a terminal part of the lighting circuit or storage battery inside the lighting device. Contact with the light source causes a failure due to a short circuit or the like, and there is a problem that the reliability of the lighting device is lowered.

An object of the present invention is to solve the above-described problems of the prior art, and to provide a lighting device that is portable, can be installed at an arbitrary place, is controlled in lighting, and has improved reliability.

In order to solve the above problems, the present invention has the following configuration. A solar panel; a storage battery that stores electricity obtained by the solar panel; an LED that is lit by discharge from the storage battery; and a charge / discharge control circuit that controls charging / discharging of the storage battery, the solar panel and the storage battery The LED and the charge / discharge control circuit are electrically connected to each other, and the charge / discharge control circuit starts discharging the storage battery after a predetermined time has elapsed since the charging of the storage battery was stopped. It is characterized by controlling as follows.

    The lighting device according to the present invention can be easily carried and is convenient as a lighting device that can be installed at any place. In addition, since solar energy is used, it is highly practical as a lighting device that is environmentally friendly. And since the lighting start time of an illuminating device can be controlled, an illuminating device can be lighted in a desired time slot | zone. Furthermore, it is a highly reliable lighting device in which the frequency of failure is reduced even if the lighting device is condensed.

It is a figure which shows the structural example of the illuminating device by this invention. It is a block diagram which shows the lighting system of the illuminating device by this invention. It is a figure which shows the use condition of the illuminating device by this invention. It is a figure which shows the other use condition of the illuminating device by this invention.

Hereinafter, embodiments of the present invention will be described in detail. However, the drawings are schematic, and the dimensional relationship ratios and the like are different from the actual ones.

Hereinafter, the configuration of a lighting device according to the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing a configuration example of a lighting device 10 according to the present invention.
Reference numeral 1 in FIG. 1 denotes a solar panel (solar cell). It mainly uses light energy from the sun to generate electricity by applying the photovoltaic effect. Reference numeral 2 denotes an LED which emits light by electricity. Reference numeral 3 denotes a substrate. Although not shown, a lighting circuit for lighting the LED 2 and a charge / discharge control circuit for controlling charge / discharge of the storage battery are mounted on the substrate 3. Reference numeral 4 denotes a storage battery that stores electricity converted by the solar panel 1. Reference numeral 5 denotes wiring, which mainly connects the charge / discharge control circuit mounted on the substrate 3 and the storage battery 4. Reference numeral 6 denotes a housing that accommodates these components and has translucency. In addition, although the material of the housing | casing 6 is not specifically limited, For example, familiar things, such as a plastic bottle, can be used. FIG. 1 shows an example in which an empty plastic bottle used as a drinking water container is turned upside down as a casing.

    The solar panel 1 is disposed near the center in the housing 6 or slightly above the center. And LED2 is arrange | positioned at the upper surface (surface side of the solar panel 1) of the solar panel 1. FIG. The solar panel 1 also has a function of supporting the LED 2. A substrate 3 is disposed on the back surface of the solar panel 1 (the surface on which the LED 2 is not disposed). The storage battery 4 is arranged in a space below the solar panel 1 (a space formed between the solar panel 1 and the bottom 15 of the housing 6) in the housing 6. However, it is necessary that the storage battery 4 is not in contact with the bottom 15 of the housing 6. In FIG. 1, the solar panel 1, LED 2, substrate 3, and storage battery 4 are each electrically connected.

A hole 7 is provided in the bottom 15 of the housing 6. Through the hole 7, the inside of the housing 6 and the outside of the housing 6 are spatially connected. For this reason, water droplets (moisture) due to condensation generated on the inner surface of the housing 6 fall down along the inner surface of the housing 6 due to gravity, and are discharged from the hole 7 to the outside of the housing 6. The size of the hole 7 is not particularly limited as long as water droplets (moisture) generated in the housing 6 can be discharged and the storage battery 4 disposed in the housing 6 does not fall outside the lighting device 10. Good.

Further, if the storage battery 4 is in contact with the hole 7 provided in the bottom 15 of the housing 6, the hole 7 is blocked, and water droplets (moisture) due to condensation accumulated in the bottom 15 and the storage battery 4 are in contact with each other. It may cause failure. Therefore, it is preferable to arrange the storage battery 4 so as not to contact the bottom 15 of the housing 6. As shown in FIG. 1, the storage battery 4 comes into contact with the side surface of the housing 6 before the storage battery 4 reaches the bottom 15 of the housing 6 by using a housing whose tip gradually narrows toward the bottom 15. The storage battery 4 can be prevented from coming into contact with the bottom 15 of the housing 6.

FIG. 2 is a block diagram showing a lighting system of the lighting device according to the present invention. During the sun, the electricity generated by the solar panel 1 is stored in the storage battery 4 via the charge / discharge control circuit. On the other hand, when the sun begins to sink and the amount of electricity generated from the solar panel decreases and charging of the storage battery 4 stops, the storage battery 4 moves to the stage of discharging electricity, but the timing to start discharging is charge / discharge Controlled by a control circuit. For example, using a timer or the like, the charge / discharge control circuit controls the storage battery 4 to start discharging after a lapse of a certain time after the charging from the solar panel to the storage battery 4 is stopped. The electricity discharged from the storage battery 4 is transmitted to the LED 2 via the LED lighting circuit, and the LED 2 is lit. Therefore, if the timer is set so that the discharge starts 2 to 3 hours after the charging of the storage battery 4 stops, the LED 2 is turned on during the time when the sun completely sinks and the surroundings are covered in darkness. Can start.

In this manner, by providing the charge / discharge control circuit, it is possible to start lighting at a desired time period, such as starting lighting after a certain period of time has elapsed after the sun set.

FIG. 3 is a diagram illustrating a usage state of the lighting device 10 according to the present invention. A tip portion 14 that gradually narrows toward the tip is connected to the bottom 15 of the lighting device 10. The lighting device 10 can be stably fixed by inserting the tip portion 14 into the ground or the like. At this time, the tip portion 14 is connected so that the tip portion 14 does not block the hole 7 provided in the bottom portion 15 of the lighting device 10. 3 is the same as that of the illumination device 10 shown in FIG. Therefore, illustration and description of the substrate 3, the storage battery 4, the wiring 5, the hole 7, and the like are omitted.

FIG. 4 is a diagram showing another usage state of the lighting device 10 according to the present invention. For example, by providing the hanging tool 13 on the top of the lighting device 10, the rope 12 is stretched between the columns 11 and the hanging tool 13 is hooked on the rope 12 to install the lighting device 10. The hanging tool 13 is not limited to the ring shape as shown in FIG. 4, but can be of various shapes such as a hook shape that can be hooked on the rope 12. With such a configuration, the lighting device 10 can be installed at a desired height from the ground. Similar to FIG. 3, the other structure of the illumination device 10 shown in FIG. 4 is the same as that of the illumination device 10 shown in FIG. Therefore, illustration and description of the substrate 3, the storage battery 4, the wiring 5, the hole 7, and the like are omitted.

(Modified example) Next, the modified example of the illuminating device which concerns on this invention is demonstrated. As a modification of the lighting device according to the present invention, the difference from the lighting device 10 in FIG. 1 is a structure in which the solar panel 1 of the lighting device 10 in FIG. In order to arrange the solar panel 1 outside the housing 6, the solar panel 1 and the substrate 3 are electrically connected by separate wiring or the like. The diode 2 has a structure arranged on the substrate 3. With the structure according to such a modification, the solar panel 1 can be enlarged without being limited by the size of the housing 6. Therefore, if one solar panel 1 and a plurality of lighting devices 10 are electrically connected by wiring or the like, the plurality of lighting devices 10 can be turned on by one solar panel 1.

DESCRIPTION OF SYMBOLS 1, Solar panel 2, LED3, Board | substrate 4, Storage battery 5, Wiring 6, Case 7, Hole 10, Illumination device 11, Support column 12, Rope 13, Hanging tool 14, Tip part 15, Bottom part

Claims (5)

A solar panel; a storage battery that stores electricity obtained by the solar panel; an LED that is turned on by discharge from the storage battery; and a charge / discharge control circuit that controls charging / discharging of the storage battery. A lighting device in which a storage battery, the LED, and the charge / discharge control circuit are electrically connected, wherein the charge / discharge control circuit starts discharging the storage battery after a predetermined time has elapsed since the charging of the storage battery was stopped. A lighting device that is controlled to perform. The lighting device according to claim 1, wherein the storage battery, the LED, and the charge / discharge control circuit are built in a housing, and the solar panel is disposed outside the housing. A solar panel, a storage battery that stores electricity obtained by the solar panel, an LED that is turned on by discharge from the storage battery, and a charge / discharge control circuit that controls charging / discharging of the storage battery are incorporated in a housing, The solar panel, the storage battery, the LED, and the charge / discharge control circuit are electrically connected to each other, and the charge / discharge control circuit is configured so that the charge to the storage battery is stopped after a predetermined time has elapsed. An illuminating device controlled to start discharging of a storage battery. The bottom of the casing is provided with a hole that is capable of discharging moisture condensed inside the casing, and has a size that prevents the storage battery from falling outside the casing. The lighting device according to claim 2 or 3. The said storage battery is arrange | positioned in the space comprised between the said solar panel and the bottom part of the said housing | casing in the said housing | casing, and is arrange | positioned so that the said bottom part may not be contacted. The lighting device described.

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