KR200311436Y1 - Multi purpose super bright LED Flashlight using rechargeable cellular phone battery - Google Patents

Abstract

In a portable flashlight having a structure in which a mobile phone rechargeable battery can be detached so that a mobile phone rechargeable battery can be used as a power source, the light source is composed of a plurality of high-brightness light emitting diodes (LEDs), and is operated by operating the brightness control switch 15. It is characterized in that it is configured to increase the use time of the battery by changing the number of LEDs, and the main light source unit 20 to be bent at a certain angle with the flashlight body to change the direction of light radiation as needed, The light source unit 20 is configured to irradiate a long distance and simultaneously irradiate a user's surroundings (steps) with a high-brightness light emitting diode (LED) installed in the flashlight main body, thereby facilitating walking at night. High-brightness light-emitting diodes emitting cyan (5100Å) light that can utilize the Purkinje effect to light some or all of the LEDs Characterized in that the feel to the maximum brightness visually by the characteristics of the human visual adaptation in a dark environment by employing (LED), and a portable flashlight, characterized in that by monitoring the battery charging state display the state of charge and the remaining usage time

Description

Multi purpose super bright LED flashlight using rechargeable cellular phone battery}

The present invention provides a flashlight that uses a mobile phone battery to secure the function of the flashlight by using an extra mobile phone battery even when the mobile phone is held, and also does not dispose of the mobile phone battery and charger that should be discarded when the mobile phone is replaced or disposed of. It is intended to be used as a flashlight essential for homes and vehicles.

Mobile phones are usually powered by high-performance rechargeable batteries, which are supplied with two or more rechargeable batteries and charging devices.

As such, the rechargeable battery attached to the mobile phone is manufactured by the state-of-the-art technology to allow the mobile phone to be used for a long time on a single charge. Lithium-based batteries are mainly used to maintain their performance even in charge and discharge.

Since lithium-based batteries do not have a memory phenomenon peculiar to rechargeable batteries, they are known to have almost no effect on life even when the battery is randomly charged and used regardless of the discharge state of the battery. It has the characteristics to maintain and uses expensive rare materials for manufacturing, and the electrolyte used is also about 3 times the capacity of nickel cadmium battery at the same volume and weight by using expensive organic electrolyte and lithium salt instead of aqueous solution. And the battery life is also about twice as long. In addition to the battery main terminal, the battery of the mobile phone is equipped with a monitoring terminal for monitoring the state of charge of the battery.

In general, the replacement of the mobile phone is not as much as the functional life of the mobile phone or the battery, but is often changed as a fashion regardless of the call performance as the multifunctional and compact and lightweight or the design of the mobile phone is changed.

As a result, millions of mobile phones are discarded in a year, and even the high-performance mobile battery charging batteries and charging devices become obsolete and discarded as mobile phones. In addition, if the cell phone is lost, the extra rechargeable battery and charging device in the home becomes useless.

Accordingly, the disposal of such mobile phones and accessories, such as charging devices and rechargeable batteries, which are increasing in number every year, is a problem from an environmental conservation point of view, and as a part of the solution, mobile communication is limited to some mobile phones. Although it is used as a rental phone after being recovered through a retail store as a target of a company's device compensation sale, it is reported that it is insignificant compared to the total number of mobile phones that are discarded.

Even if mobile phones and accessories are kept in each household without being disposed of until now, they will eventually become useless, so these mobile phones and accessories are estimated to be discharged like general waste through pay-as-you-go bags.

Considering that these mobile phones and their accessories contain a lot of harmful substances, environmental pollution is serious when incinerated with household waste, so it is reported that the same level of pollution prevention facilities as industrial waste is required.

On the other hand, in each home, a flashlight is essential for emergency and night hiking, camping, and other vehicles, and a flashlight and a battery used for this are separately purchased. In other words, high-performance rechargeable batteries are thrown away when cell phones are replaced, and they spend extra money to buy disposable batteries for flashlights.

In addition, for emergency flashlights, mobile phones, which are designed to install light bulbs and switching circuits in mobile phones, can be used for emergency use of mobile phones. It is difficult to have it, and its brightness is weak, so it is difficult to expect a role as a flashlight, so it can be used for limited applications such as finding a keyhole, and it is difficult to use a full-fledged flashlight that requires high brightness and long time. There is also a problem that the flashlight function is also discarded along with the loss.

In addition, the conventional portable flashlight uses an incandescent light bulb as a light source, so the efficiency is low, so it is impossible to use the battery for a long time due to high power consumption, and the light bulb needs to be replaced at any time. In addition, since the life of an incandescent light bulb is difficult to predict, as the light bulb is disconnected during use, the flashlight may not be used in an emergency which is necessary, and the user may be in serious trouble or danger.

The present invention utilizes a mobile phone battery so that the flashlight, which is a necessity in homes and vehicles, can always be used without purchasing a separate battery even while the mobile phone is in use, as well as charging a mobile phone discarded by discarding or losing the mobile phone. While utilizing the battery and the charging device as a flashlight, it is configured to increase the use time of the battery by adjusting the brightness of the flashlight, and provides a solution to the problems of conventional flashlights such as bulb break.

In addition, since the flashlight is used in a dark environment, a technical design for visually maximizing brightness with a light source having the same brightness is added using the Purkinje effect, which is one of human visual characteristics in a dark place.

To this end, the present invention,

It is molded into a structure that can be easily detached to use a rechargeable battery as a power source, and uses a number of high-brightness light emitting diodes (LEDs) as a light source that emits light, but the Bulkinye effect is one of human visual characteristics. By adding a high-brightness LED that emits light of a specific turquoise wavelength that can give a (Purkinje effect), you can feel the maximum brightness with the same amount of light in the dark, and multiple high-brightness LEDs as a light source It can be divided into several groups and equipped with a changeover switch to change the number of lights as needed so that the battery life can be increased by adjusting the brightness without losing power and charging the battery installed in the mobile phone battery. Utilize the monitoring terminal to add battery status monitoring circuit and display device By displaying the status and the remaining available time, the user can freely adjust the use state (brightness and use time) of the flashlight, characterized by increasing its utilization.

1 is a structural diagram of a flashlight according to an embodiment according to the present invention,

2 is a circuit diagram showing an electric circuit of a flashlight of an embodiment according to the present invention;

FIG. 3 is a non-visibility graph showing visibility when human vision in a dark environment is in a bright order and in a dark adaptive state. FIG.

* Explanation of symbols on main parts of the drawings

11 Mobile phone battery

12 Battery compartment

14 Power Switch

15 Brightness Control Switch

16 Foot Light Switch

20 Daylight Source

41 Battery status monitoring circuit

42 Display Window

Figure 1 shows an embodiment according to the present invention, the mobile phone battery 11, the battery mounting portion 12, the battery terminal contact portion 13, the power switch 14, brightness control switch 15, foot light switch (16) and the LED light source consisting of LED group 1 (17), LED group 2 (18), LED group 3 (19), on the opposite side of the cell phone battery mounting portion clip for convenience when carrying and use (21) ) Is molded.

The main light source unit 20 using the LED as a light source is configured to rotate at an arbitrary angle, so that the flashlight according to the present invention can be mounted on a pocket or a hat, thereby allowing various repair tasks such as climbing or car repairs to use both hands freely. It is meant to be.

Figure 2 is a circuit diagram for explaining the function of the flashlight according to the present invention, showing the circuit operation of the brightness control switch 15 and the step lighting switch 16.

The role of each component shown in Figs. 1 and 2 will be described below.

The mobile phone battery 11 is of a type supplied with a normal mobile phone and has various capacities and shapes according to the model of the mobile phone.

The battery mounting portion 12 is configured in the same structure as the battery mounting portion of the conventional mobile phone is configured to be easily removable mobile phone battery 11, when the battery is mounted, the battery terminal through the battery terminal contact portion 13 flashlight Make sure that it is connected to the electric circuit of the main body.

The power switch 14 is configured as a slide switch or a push button switch serves to turn on and off the power.

The brightness control switch 15 is used to adjust the brightness by changing the number of LEDs to be lit, and it is possible to adjust the brightness in several steps according to the circuit configuration as an example of the circuit shown in FIG. By omitting this brightness control switch 15 and by configuring a circuit to adjust the brightness according to the number of presses of the power switch 14 can reduce the number of operating parts.

The light source consists of a number of high-brightness LEDs that vary in number of groups as needed, such as LED Group 1 (17), LED Group 2 (18), and LED Group 3 (19), and the brightness can be changed to change the number of LEDs that are lit. An adjustment switch 15 is added to the circuit. Therefore, if you want to adjust the brightness by operating the brightness control switch 15 to increase and decrease the number of LEDs can be simply adjusted the brightness, thereby extending the use time of the battery.

The flashlight according to the present invention configured as described above basically turns on the LED group 1 (17) when the power switch 14 is turned on, similar to the operation of a conventional flashlight, and the brightness control switch 15 when further brightness is required. When the LED group 2 (18) is additionally lit to enable brighter lighting.

In order to secure night walking, it is necessary to illuminate the feet of pedestrians at the same time as the remote lighting to secure the field of view, so the LED flashlight body is installed at a different angle from that for remote lighting, and the foot lighting switch is installed. You can add (16) to illuminate the pedestrian's feet at the same time.

Switches such as the brightness control switch 15 and the foot light switch 16 can be easily switched by varying the number of presses or the switch position of the slide switch with only one power switch 14 by making the contacts of the power switch 14 into multiple stages. The number of switch components can also be reduced because this is possible.

4 illustrates an example of a case in which a battery state monitoring circuit and a display device are added to display a state of charge of a battery and a remaining usable time by using a battery charge monitoring terminal installed in a mobile phone battery. When the power switch 14 is turned on, the battery state monitoring circuit 41 operates, and the display window 42 displays the state of charge of the battery, the selected brightness, and the remaining use time by the operation of the battery state monitoring circuit 41. It is seen. Therefore, the display window enables the user to check the remaining state of charge of the battery and the remaining use time of the selected brightness, thereby enabling the user to freely adjust the state of use (brightness and use time) of the flashlight.

One of the human square characteristics has the Purkinje effect.

The eye's retina responds to all radiation in the visible range (3800 to 7600 Hz) but does not act equally on each wavelength of light in this visible range.

The curve showing the state in which the sensitivity of vision changes with each wavelength of visible light is called a non-visibility curve. This shows the sensitivity of the light to the wavelength of light. It shows the state that the intensity (brightness) of the light that humans sense varies according to the wavelength difference even if the physical characteristics (radiation energy) of the light source emitting the light are the same. will be. The standard Visibility Sensitivity Curve, established by the International Lighting Commission on the basis of several measurements, has the highest visual sensitivity at a wavelength of 5550 GHz (yellow-green light) and is nearly symmetrical on shorter and longer wavelengths. In this case, the sensitivity for each wavelength is expressed as the ratio of the sensitivity of the light with the maximum sensitivity (yellow-green light), which is the ratio of the measured light energy of that same brightness to that of the yellow-green light taken as reference. This is the visibility of the wavelength. This value is an important figure that defines the relationship between the physical energy (radiation energy) of light and the intensity of light perceived by sight.

Figure 3 shows that the non-sensitivity curve for the wavelength of light described above depends on the ambient lighting environment, the yellow curve on the right is the curve for bright compliance, that is, the eye compliance, and the blue curve on the left is In the dark, ie the curve for dark adaptation, this is the visibility characteristic when the rod of the retina acts. The two curves are the same shape, but the dark adaptive curve is skewed to the left than the bright adaptive curve.

That is, under high and normal illumination, yellowish green (5550Å) has the maximum visibility, but in the case of extremely low illumination, cyan (5100Å) has the maximum visibility, and blue in the dark where red and blue, which were seen at the same brightness in bright places, The phenomenon appears brighter than red, and this phenomenon is called the Purkinje effect.

Typically, since the flashlight is used in a dark environment, the human vision at this time is in a dark compliant state, and as described above, the state of visibility of the cyan (5100 Å) has the highest visibility, that is, the state of sensing the cyan light most strongly. Therefore, if the wavelength of light emitted from the light source is close to cyan (5100 Å), the maximum brightness can be visually felt compared to other colors of the same light amount by the Purkinje effect.

In order to achieve this effect by using a general light source such as an incandescent lamp, it is necessary to make cyan light through an optical device such as a color filter that passes only cyan. Therefore, light of different wavelengths are all absorbed from the filter, so the overall light efficiency is reduced. It does not work.

However, in the case of high-brightness light emitting diodes (LEDs), some products emit light having a wavelength close to cyan (5100 Å) (for example, Bluish Green color: 5050 Å) depending on the type. It is possible to obtain the maximum brightness visually without compromising light efficiency.

Therefore, when a part or all of the plurality of LEDs constituting the light source is replaced with LEDs emitting blue-green color, the maximum brightness can be visually felt by the characteristics of human vision adapted to a dark environment.

The present invention improves the utilization of accessories such as mobile phones and chargers in normal times, and recycles the accessories even when disposing of mobile phones, contributing to reducing serious environmental pollution caused by the recently increasing trend of discarded mobile phones and their accessories,

As a mobile phone user, it is possible to secure the flashlight function, which is a necessity of the home, while possessing the mobile phone by the present invention, and to secure the functions of the flashlight and the battery which must be provided at a separate cost for each household by recycling the rechargeable battery and charger discarded with the mobile phone. As it is economical,

As the light source uses a high brightness LED and uses a brightness control switch according to the application, the use of a flashlight increases due to the feature of the present invention, which greatly increases the battery usage time. There is no problem caused by disconnection of light bulbs by using high brightness LED which can be utilized during activities and semi-permanent life as a light source, and it keeps the flashlight fully charged by the charger at all times like in case of emergency such as disaster. If you need a flashlight, you can respond immediately.

When the battery status monitoring circuit and the display device are added as shown in FIG. 4, the user can check the remaining state of the battery in the state of charge and the selected brightness based on the state of charge and available time of the battery displayed on the display window. Therefore, the use state (brightness and use time) of the flashlight can be freely selected, thus preventing the flashlight from functioning during the nighttime outdoor activities, thereby increasing its utilization.

In addition, it is possible to obtain the maximum brightness visually by adopting a high-brightness light emitting diode (LED) that emits turquoise (5100 () light that can use the Purkinje effect.

As a mobile phone manufacturer, the flashlight according to the present invention can be manufactured at a small additional cost, so that it can be used as a sales point by supplying it as an accessory when selling its mobile phone, highlighting it as superior to its competitors. By using environmental wastes for other purposes, the effect of reducing wastes can be enhanced, thereby enhancing the eco-friendly corporate image that considers environmental preservation.

Claims (6)

Claim 1 A portable flashlight having a structure in which a cellular phone rechargeable battery can be detached so that the cellular phone rechargeable battery can be used as a power source, the light source is composed of a plurality of high-brightness light emitting diodes. By operating the brightness control switch 15 to change the number of LEDs that can be used to increase the use time of the battery and to increase the utilization of the flashlight portable flashlight characterized by The method according to claim 1, Portable flashlight using a high brightness light emitting diode as a light source, so that the main light source portion 20 is bent at a predetermined angle with the flashlight body so that the radiation direction of the light can be changed as needed. The method according to claim 1, The power switch 14 is configured as a push button type, but the number of LEDs to be lighted changes according to the number of presses (example: 1 time: 2 times, 2 times: 5 times, 3 times: 7 times, long press: OFF Etc.) Portable flashlight with circuits configured to adjust brightness and lighting position as needed The method according to claim 1, It is configured to change the radiation direction of the light by changing the angle of the main light source portion 20 composed of a high brightness light emitting diode (LED) as shown in FIG. 1 to irradiate a long distance, and also to the flashlight main body as shown in the LED group 3 (19) Light-emitting diode is equipped with a separate light source for ambient lighting to simultaneously illuminate the user's surroundings (steps) portable flashlight structure that facilitates walking at night In a portable flashlight having a main light source unit 20 composed of a high brightness light emitting diode, a high brightness light emitting diode that emits a cyan (5100 mW) light that can use the Purkinje effect of some or all of the plurality of LEDs constituting the light source. Portable flashlight, characterized by the use of (LED) to visually feel the maximum brightness by the characteristics of human vision that is adapted to the dark environment The method according to claim 1, Typically, a battery state monitoring circuit 41 and a status display window 42 are installed on a flashlight body to display an operation state of the battery using a battery charge state detection terminal installed in a mobile phone battery, and the display window charges the battery. Portable flashlight configured to display the status, brightness, and remaining usage time so that the user can adjust the brightness of the flashlight according to its display status to adjust the battery usage time.