KR20090008093U - Multi-functional flashlight for a bicycle - Google Patents

Abstract

The multi-function flashlight includes a lamp housing equipped with a light emitting diode (LED) lamp, a battery housing accommodating a secondary battery, providing a common ground, mechanically coupled to the lamp housing, and receiving power from the secondary battery. A digital function circuit for performing a digital function, a first switch and a second switch can be mounted, and are located between the secondary battery and the LED lamp and the circuit housing mechanically coupled to the battery housing, and the first switch. And a power separation unit providing insulation between a conductor connected to the digital function circuit and a conductor connected to the LED lamp through the second switch.

Bicycle Light, Headlight, LED, LED, Light Emitting Diode, Flash Light, Flash Light, Flashlight, MP3, MP3, Radio, Embedded, embedded, GPS, Speedometer, Rangefinder

Description

Multifunctional flashlight for bicycle {MULTI-FUNCTIONAL FLASHLIGHT FOR A BICYCLE}

The present invention relates to a flashlight, and more particularly, to a multi-function flashlight for bicycles.

Conventionally, incandescent light bulbs are generally used as a flashlight using a battery as a power source. Due to the characteristics of an incandescent light bulb, a conventional flashlight has a high amount of light when the voltage of the battery is high, and a low amount of light when the voltage of the battery is low.

However, in the case of a flashlight using a light emitting diode (LED) device that is widely used in recent years, the LED emits light only when the voltage of the battery is higher than the conduction voltage of the LED due to the light emission characteristics of the LED. Accordingly, when the voltage of the battery is lowered and lower than the LED conduction voltage, it can be seen that the LED does not emit light even though the battery still has power. For example, a typical LED device does not emit light when the voltage of the battery is lower than 2V if its operating voltage is about 2V. Therefore, a constant voltage method of supplying a fixed DC voltage above the operating voltage using a DC-DC converter is often employed.

In terms of shape, the torch type flashlight typically includes a metal housing, such as iron or aluminum, which has a suitable inner diameter and is hollow in the shape of a hollow pipe. Unevenness may be added. In addition, such a metal housing is provided with an LED lamp at one end and a cap at the other end. The cap and the housing may be screwed together, and the cap may be removed from the housing and the battery may be removed from or inserted into the housing. DC-DC converters and switches are located between the LED lamps and the battery. Depending on the construction, the cap may be rotated by a limited angle of rotation to replace the switch.

The problem to be solved by the present invention is to add a charging function and a digital function to the flashlight.

Multifunction flashlight according to the present invention for solving the above problems,

A lamp housing equipped with a light emitting diode (LED) lamp;

A battery housing that houses a secondary battery, provides a common ground, and is mechanically coupled to the lamp housing;

A circuit housing configured to receive a power supply from the secondary battery and to mount a digital function circuit, a first switch, and a second switch to perform a predetermined digital function, the circuit housing being mechanically coupled to the battery housing; And

A power separation unit positioned between the secondary battery and the LED lamp and providing insulation between a conductor connected to the digital function circuit through the first switch and a conductor connected to the LED lamp through the second switch. Include.

Preferably, the circuit housing may further be mounted therein a DC converter circuit for converting the voltage of the secondary battery to be suitable for light emission of the LED lamp.

Preferably, the circuit housing

A charging circuit for charging the secondary battery can be further mounted therein.

Preferably, the circuit housing

The outer surface may further be equipped with a solar cell connected to power the charging circuit.

Preferably, the circuit housing

Its outer surface may further be equipped with a mobile phone standard charger interface to power the charging circuit.

Preferably, the circuit housing may further be equipped with an illuminance detector that can control the operation of the LED lamp according to the amount of external light.

Preferably, the circuit housing may further be equipped with a third switch for controlling the operation of the illuminance sensor.

Preferably, the predetermined digital function may include at least one of digital audio reproduction, GPS signal reception, and digital communication.

Preferably, the circuit housing may include a protrusion formed with a groove to wind or fix the earphone string.

Multi-function flashlight according to another embodiment of the present invention

A lamp housing equipped with a light emitting diode (LED) lamp;

A circuit housing that can be equipped with a digital function circuit, a first switch, and a second switch that are externally supplied with power to perform a predetermined digital function, and are mechanically coupled to the lamp housing; And

And a power separator providing insulation between the electrical path from the secondary battery to the digital function circuit through the first switch and the electrical path to the LED lamp through the second switch.

Preferably, the circuit housing

The illumination sensor may control the operation of the LED lamp according to the amount of external light.

Preferably, the circuit housing

A third switch capable of controlling the operation of the illuminance detector may be further mounted.

Preferably, the predetermined digital function may include at least one of digital audio reproduction, GPS signal reception, and digital communication.

Preferably, the circuit housing may include a protrusion formed with a groove to wind or fix the earphone string.

According to the present invention, a charging function and a digital function may be added to the flashlight for convenience of use and to reduce the device to be carried during outdoor activities.

With respect to the embodiments of the present invention disclosed in the text, specific structural to functional descriptions are merely illustrated for the purpose of describing the embodiments of the present invention, embodiments of the present invention may be implemented in various forms and It should not be construed as limited to the embodiments described in.

Hereinafter, with reference to the accompanying drawings, it will be described in detail a preferred embodiment of the present invention. The same reference numerals are used for the same elements in the drawings, and duplicate descriptions of the same elements are omitted.

1 is a perspective view of a multi-function flashlight according to an embodiment of the present invention.

Referring to FIG. 1, the multifunction flashlight includes a battery housing 11, a lamp housing 12, and a circuit housing 13. Although not represented in the drawings, the multi-function flashlight may further include a fixing device for fixing to a bicycle handle or the like.

The battery housing 11 is hollow and generally elongated, and may contain a rechargeable secondary battery therein. The battery housing 11 may be provided with a common ground, such as a secondary battery and a lamp housed therein, and may effectively dissipate heat generated from the lamp, and may be made of a metal material such as aluminum so as to be durable. Furthermore, it can be anodized for insulation purposes, aesthetics, and corrosion protection. The negative electrode of the secondary battery may be connected to the metal portion of the battery housing 11.

The lamp housing 12 houses the lamp in the head body and may include a lens and reflector made of a suitable material for condensing. The lamp to be mounted may preferably be an LED lamp. The head body of the lamp housing 12 may be anodized after being made of a metal material similarly to the battery housing 11. The head body of the lamp housing 12 may be screwed with the battery housing 11. Preferably, the head fastening portion of the lamp housing 12 and the screw fastening portion of the battery housing 11 may not be anodized or may be formed by cutting after anodizing.

Although not shown to be visible from the outside, there may be a power disconnect between the battery housing 11 and the lamp housing 12. The power separator is a component for separating the voltage supplied to the lamp from the voltage supplied to the digital function circuit.

The lamp in the lamp housing 12 has its positive terminal connected to the voltage supplied from the DC-DC converter in the circuit housing 13 via a power disconnect and a wire. The negative terminal of the lamp in the lamp housing 12 can be connected to a common ground by contacting the head body of the lamp housing 12, but the negative terminal of the lamp is connected to the battery housing 11 or the negative electrode of the secondary battery. It can also be connected via.

The circuit housing 13 may include a DC-DC converter circuit, a charging circuit, and a digital function circuit therein. The DC-DC converter circuit is a circuit for supplying a constant voltage to the LED lamp. Typically, lithium-ion or lithium polymer-based secondary batteries have a supply voltage of about 4.2V at full charge, but the LED lamp remains powered when the voltage drops with use and falls below about 3V, the operating voltage of the LED lamp. Will stop working. The DC-DC converter circuit is a circuit which boosts or maintains a predetermined constant voltage so that the voltage of the secondary battery maintains or exceeds the operating voltage of the LED lamp.

The charging circuit is a circuit that charges the secondary battery so that the secondary battery can be removed and recharged from the battery housing 11 and then used again without being remounted.

The digital function circuit is a circuit implementing various digital functions that the multifunction flashlight for bicycles of the present invention can provide. For example, when using a bicycle outdoors for leisure, a flashlight is typically mounted on the handlebar. It is also common to listen to music while riding a bicycle. You might also consider installing more speedometers or GPS receivers. Implementing these functions in a single device, Flashlight, can be easy to manage and use. The digital function circuit is a circuit for performing an MP3 playback function, a GPS signal reception function, and the like.

Furthermore, the digital function circuit may be a circuit that performs a communication function such as Bluetooth. In this case, the digital function circuit may operate in conjunction with a mobile phone connected via Bluetooth.

The digital function circuit does not necessarily have to be a digital function despite its name, and may include analog functions such as AM to FM radio circuit.

A plurality of openings are formed in the circuit housing 13, each opening having a switch 134 for controlling the operation of the lamp, a switch 135 for controlling the operation of the digital function circuit, and an operation state of the digital function circuit. LED 137, input / output interface to digital function circuit, antenna interface to receive wireless signal, plug to input / output voice signal, plug to charge power, speaker, microphone And the like may be mounted respectively. Furthermore, the circuit housing 13 may be provided with a grooved protrusion 138 to wind or fix the earphone string.

The solar cell 15 may be mounted on the upper surface of the circuit housing 13, so that the secondary battery may be charged by naturally generating power from sunlight or solar heat during outdoor activities.

The circuit housing 13 may be made of a metal material similarly to the battery housing 11 and the lamp housing 12, but preferably may be made of a synthetic resin.

According to an embodiment, a fastening means 14 may be further added, and the fastening means 14 may be attached to the bottom of the battery housing 11 so that weight distribution is appropriate.

2 is a cross-sectional view of the multi-function flashlight according to an embodiment of the present invention.

Referring to FIG. 2, there is shown a battery housing 11, a lamp housing 12, and a circuit housing 13 of a multifunction flashlight.

The secondary battery 111 is housed in the battery housing 11, the lamp 121 is housed in the lamp housing 12, and the circuit boards 131, 132, and 133 are housed in the circuit housing 13, respectively.

There is a power disconnect 14 between the battery housing 11 and the lamp housing 12. The power separator 14 is a part for separating the power path provided from the secondary battery 111 to the lamp 121 and the power path provided from the secondary battery 111 to the digital function circuit 133, respectively. By using the power supply separator 14, the lamp function and the digital function operation can be controlled independently of each other while using the power source in common. The power separator 14 includes at least two insulated conductor members, one conductor member connecting between the positive electrode of the secondary battery 111 and the power terminals of the respective circuits, and the other conductor member is DC. -Connect between the output voltage of the DC converter circuit and the anode of the lamp 121. According to the exemplary embodiment, a spring-shaped conductor member (not shown) may be brought into close contact with each other between the conductor member of the power separator 14 and the anode of the lamp 121.

In the circuit housing 13, the DC-DC converter circuit board 131, the charging circuit board 132, and the digital function circuit board 133 are respectively fixed at appropriate positions. A spring conductor member SP1 is interposed between at least one of the circuit boards 131, 132, and 133 and a cathode of the secondary battery 111 to provide a ground voltage to the circuit board. A spring conductor member SP2 may be interposed between another one of the circuit boards 131, 132, and 133 and the battery housing 11 to provide a ground voltage to the circuit board. According to an embodiment, the spring conductor member may be replaced with a suitable conductor member such as a metal piece.

The circuit housing 13 includes a switch 134 for controlling the operation of the lamp 121, a switch 135 for controlling the operation of the digital function circuit 133, an LED for indicating an operation state of the digital function circuit, and a digital function circuit. Input / output interface for, antenna interface for receiving wireless signal, plug for input / output voice signals, plug for charging power, speaker, microphone, etc. Portions may be formed. In addition, the circuit housing 13 may be further equipped with a solar cell. Furthermore, the circuit housing 13 may be provided with a grooved protrusion to wind or fix the earphone string.

3 is a block diagram illustrating a circuit connection of a multifunction flashlight according to an embodiment of the present invention.

Referring to FIG. 3, the multifunction flash light includes a secondary battery 111, a power separator 14, a lamp 121, circuits 131, 132, and 133, and switches 134 and 135. Although not shown, the LED may further include an operation state of the charging circuit 132 and the digital function circuit 133.

The DC-DC converter circuit 131, the charging circuit 132, and the digital function circuit 133 are connected to the secondary battery 111 via the power supply separating unit 14 from the positive electrode of the secondary battery 111. The output voltage of the DC-DC converter circuit 131 may be applied to the lamp 121 via the switch 134 and the power separation unit 14. A switch 135 may be positioned between the power separation unit 14 and the digital function circuit 133 to control the operation of the digital function circuit 133.

The DC-DC converter circuit 131 outputs a constant voltage by boosting or regulating the output voltage of the secondary battery 111 lowered according to use, or generates a constant current from the output voltage of the secondary battery 111 to generate a lamp. It can supply to 121.

The charging circuit 132 receives charging power from the outside to charge the secondary battery 111. The charging circuit 132 may receive charging power from a dedicated charging adapter or may receive charging power from a mobile phone standard charger. In some embodiments, charging power may be applied from the solar cell 15.

The digital function circuit 133 may include circuits capable of performing a GPS function, a media playback and recording function such as MP3, and the like. These circuits may be implemented by a conventional technology, and preferably by an embedded IC. .

4 is a block diagram illustrating a circuit connection of a multifunction flashlight according to another embodiment of the present invention.

Referring to FIG. 4, the multi-function flash light includes a secondary battery 111, a power separator 14, a lamp 121, circuits 131a, 132, and 133, switches 134, 135, and 136 and illuminance. Sensor (CDS) 139. Although not shown as in FIG. 3, an LED indicating an operating state of the charging circuit 132 and the digital function circuit 133 may be further included.

Unlike the FIG. 3, the DC-DC converter circuit 131a further includes an illuminance sensor 139 and a switch 136. When the switch 136 is in the on position, the illumination sensor 139 may control the lighting of the lamp 121 according to the brightness of the external environment. In this case, the illuminance sensor 139 is energized when the periphery becomes darker than the predetermined brightness and supplies power to the lamp 121, and when the periphery is brighter than the predetermined brightness, the illumination sensor 139 cuts off and cuts off the power supply to the lamp 121. . Since the illumination sensor 139 and the switch 136 operate independently of the switch 135, the lamp 121 may automatically emit light according to the ambient brightness even when the switch 135 is turned off. On the contrary, when the switch 135 is in an on state, whether the illuminance sensor 139 and the switch 136 are in an energized state does not affect light emission of the lamp 121.

According to an exemplary embodiment, the flashlight may not include the DC-DC converter circuit 131, and in this case, the power passing through the power disconnecting unit 14 does not perform DC-DC conversion. Or may be supplied to the lamp 121 via the switch 136 and the illumination sensor 139.

The other circuits and components are substantially the same as the corresponding components in FIG. 3 and thus description thereof is omitted.

5 is a cross-sectional view of the multi-function flashlight according to another embodiment of the present invention.

5, there is shown a lamp housing 22 and a circuit housing 23 of the multifunction flashlight.

The lamp 221 is housed in the lamp housing 22, and the circuit board 233 is housed in the circuit housing 23, respectively.

Within the circuit housing 23 is a power disconnect 24. The power separator 24 is a part for separating the conductor for connecting the electrical path from the external power source to the lamp 221 and the conductor for connecting the electrical path from the external power source to the digital function circuit 233, respectively. By using the power supply separating unit 24, the lamp function and the digital function can be independently controlled while using an external power source in common. The power separator 24 includes at least two insulated conductor members, one conductor member connecting the positive pole of the external power source and the digital function circuit 233, and the other conductor member positive pole of the external power source. And the anode of the lamp 221 are connected. According to the exemplary embodiment, both sides of the power supply separating part 24 and the anode of the lamp 221 may be in close contact with each other using a spring-shaped conductor member.

In the circuit housing 23, the digital function circuit board 233 is fixed at an appropriate position.

The circuit housing 23 includes a switch (not shown) for controlling the operation of the lamp 221, a switch 235 for controlling the operation of the digital function circuit 233, an LED indicating an operation state of the digital function circuit, and a digital function. Input / output interface to the circuit, antenna interface for receiving wireless signals, plugs for input / output of voice signals, plugs for charging power, speakers, microphones, etc. Opening portions may be formed. Furthermore, the circuit housing 23 may be provided with a grooved protrusion to wind or fix the earphone string.

6 is a block diagram illustrating a circuit connection of a multifunction flashlight according to another embodiment of the present invention.

Referring to FIG. 6, the multi-function flash light includes a power separator 24, a lamp 221, a digital function circuit 233, and switches 234 and 235. Although not shown, the LED may further include an operation state of the digital function circuit 233.

The positive voltage of the external power source may be applied to the lamp 221 through the switch 234 via the power separating unit 24. The digital function circuit 233 is connected through a switch 235 through a power disconnecting unit 24 from a positive pole of an external power source.

The digital function circuit 233 includes circuits capable of performing a GPS function, a media playback and recording function such as MP3, etc. These circuits may be implemented by a conventional technology, and preferably by an embedded IC. .

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited to the above-described embodiments, which can be variously modified and modified by those skilled in the art to which the present invention pertains. Modifications are possible. Accordingly, the spirit of the invention should be understood only by the claims set forth below, and all equivalent or equivalent modifications will fall within the scope of the invention.

1 is a perspective view of a multi-function flashlight according to an embodiment of the present invention.

2 is a cross-sectional view of the multi-function flashlight according to an embodiment of the present invention.

3 is a block diagram illustrating a circuit connection of a multifunction flashlight according to an embodiment of the present invention.

4 is a block diagram illustrating a circuit connection of a multifunction flashlight according to another embodiment of the present invention.

5 is a cross-sectional view of the multi-function flashlight according to another embodiment of the present invention.

6 is a block diagram illustrating a circuit connection of a multifunction flashlight according to another embodiment of the present invention.

Claims (14)

A lamp housing equipped with a light emitting diode (LED) lamp; A battery housing that houses a secondary battery, provides a common ground, and is mechanically coupled to the lamp housing; A circuit housing configured to receive a power supply from the secondary battery and to mount a digital function circuit, a first switch, and a second switch to perform a predetermined digital function, the circuit housing being mechanically coupled to the battery housing; And A power separation unit positioned between the secondary battery and the LED lamp and providing insulation between a conductor connected to the digital function circuit through the first switch and a conductor connected to the LED lamp through the second switch. Multifunction flashlight included. The multifunctional flashlight of claim 1, wherein the circuit housing may further include a DC converter circuit configured to convert a voltage of the secondary battery so as to be suitable for light emission of the LED lamp. The method of claim 1, wherein the circuit housing A multifunctional flashlight, wherein the charging circuit for charging the secondary battery can be further mounted therein. The method of claim 3, wherein the circuit housing And a solar cell connected to an outer surface thereof to supply power to the charging circuit. The method of claim 3, wherein the circuit housing And a mobile phone standard charger interface on its outer surface to power the charging circuit. The multi-function flashlight of claim 1, wherein the circuit housing may further include an illuminance detector for controlling the operation of the LED lamp according to an external light amount. The multifunction flashlight of claim 6, wherein the circuit housing may further include a third switch for controlling the operation of the illuminance sensor. The multifunction flashlight of claim 1, wherein the predetermined digital function comprises at least one of digital audio reproduction, GPS signal reception, and digital communication. The multifunctional flashlight of claim 1, wherein the circuit housing includes a protrusion having a groove formed to wind or fix the earphone string. A lamp housing equipped with a light emitting diode (LED) lamp; A circuit housing that can be equipped with a digital function circuit, a first switch, and a second switch that are externally supplied with power to perform a predetermined digital function, and are mechanically coupled to the lamp housing; And And a power separator providing insulation between an electrical path connected from the secondary battery to the digital function circuit through the first switch and an electrical path connected to the LED lamp through the second switch. The method of claim 10, wherein the circuit housing Multifunction flashlight, characterized in that it can be further equipped with an illumination sensor that can control the operation of the LED lamp according to the amount of external light. The circuit of claim 11, wherein the circuit housing is And a third switch capable of controlling the operation of the illuminance detector. The multifunction flashlight of claim 10, wherein the predetermined digital function comprises at least one of digital audio reproduction, GPS signal reception, and digital communication. The multifunctional flashlight of claim 10, wherein the circuit housing includes a protrusion having a groove formed to wind or fix the earphone string.

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