KR20090020990A

KR20090020990A - Portable flashlight

Info

Publication number: KR20090020990A
Application number: KR1020070085678A
Authority: KR
Inventors: 장원경
Original assignee: 장원경
Priority date: 2007-08-24
Filing date: 2007-08-24
Publication date: 2009-02-27

Abstract

The present invention relates to a portable flashlight capable of blinking a light source with a simple structure. Portable flashlight of the present invention comprises a cylindrical body made of a conductive material, the front end and the rear end are open; A head module having a front cover coupled to the front of the body, a light source unit, and a light source driving unit for driving the light source unit; A power supply having a case block accommodating a battery for supplying power to the light source driver, a first conductor part for supplying a first polarity voltage to the light source driver, and a second conductor part for supplying a second polarity voltage to the light source driver A module; A switching coupled to the rear cover coupled to the rear of the body, and the second polarity voltage supplied from the second conductor part to the rear cover to supply the light source driver to the light source driver through the body as switching information according to a user's operation. And a conversion module having a portion.

Description

Portable Flashlight {PORTABLE FLASHLIGHT}

The present invention relates to a portable flashlight, and more particularly, to a portable flashlight capable of flashing a light source with a simple structure by improving a power supply module in the case of using a switching module pressurized in the longitudinal direction from the rear of the body. .

A portable flashlight is another form of flashlight, which means a small portable light source powered by a battery. The types of flashlights are searchlights, portable flashlights, and pocket lights. have.

Such a portable flashlight is generally used to secure the vision at night or in a dark room, and in general, the user operates the switch while holding the body of the flashlight directly by hand to supply power to the light source to illuminate the light. use.

Applicant of the present application filed on April 10, 2007 (Application No. 20-2007-0005899: portable flashlight with a compass) as a utility model for a multipurpose portable flashlight with a compass attached to such a portable flashlight.

1 shown in the prior art in the utility model application 20-2007-0005899 described above is provided with an on / off switch for supplying power to the light source is provided on one side of the body, Figure 5 of one embodiment according to the invention power to the light source The on / off switch for supplying the pressure is installed at the rear of the body is provided to be pressed in the longitudinal direction.

According to the above-described design, the thickness of the portable flashlight is reduced, but since the batteries are arranged in series, it is difficult to reduce the overall size, and only a simple function of turning on / off the light source by the operation of the switch is realized. That is, it is difficult to diversify the functions according to the operation of the switch, the circuit becomes complicated to implement the diversification of the functions according to the operation of the switch, in some cases there is a problem that a malfunction occurs.

In order to solve the above problems, the present invention improves the power supply module in the case of using the switching module is pressed in the longitudinal direction from the rear of the body to provide a portable flashlight capable of flashing the light source with a simple structure. have.

In order to achieve the above object, the present invention is made of a conductive material, the front and rear ends of the cylindrical body; A head module having a front cover coupled to the front of the body, a light source unit, and a light source driving unit for driving the light source unit; A power supply having a case block accommodating a battery for supplying power to the light source driver, a first conductor part for supplying a first polarity voltage to the light source driver, and a second conductor part for supplying a second polarity voltage to the light source driver A module; A switching coupled to the rear cover coupled to the rear of the body, and the second polarity voltage supplied from the second conductor part to the rear cover to supply the light source driver to the light source driver through the body as switching information according to a user's operation. It provides a conversion module having a portion.

The first conductor part may include a spring and a conductor rod connected to the spring, and the second conductor part may include an annular conductor plate provided at the front of the case block and a circular conductor plate provided at the rear of the case block. It features.

The light source driving unit may include a circuit board including a first conductor layer to which the conductor rod is in contact, a second conductor layer to which the annular conductor plate is connected, and a third conductor layer to which conductive portions of the body are connected. do.

In addition, the switching unit is characterized in that it comprises a fixed block in contact with the circular conductor plate when coupled to the rear of the body and a movable contact body for electrically connecting the fixed block and the rear cover in accordance with the user's operation.

The movable contact body may be provided in a dome shape adjacent to the fixed block, and the switching unit may further include a movable block that moves the movable contact body to be connected to the fixed block.

The light source unit may include a plurality of light emitting diodes.

The case block is characterized in that a plurality of springs for connecting three batteries arranged in parallel are provided in series.

The first polarity voltage is an anode voltage, and the second polarity voltage is a cathode voltage.

The portable flashlight according to the present invention can be usefully used for emergencies and the like because it is possible to blink the light source according to the user's operation.

In addition, the portable flashlight according to the present invention can prevent the malfunction of the light source driver because the anode voltage and the cathode voltage are always supplied to the light source driver.

In addition, the portable flashlight according to the present invention can be reduced in size in the longitudinal direction by placing the batteries in parallel.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of a portable flashlight according to the present invention.

1 is a perspective view schematically showing the portable flashlight according to an embodiment of the present invention from the front, FIG. 2 is a perspective view schematically showing the portable flashlight of FIG. 1 from the rear, and FIG. 3 is a perspective view of the portable flashlight of FIG. 4 is a cross-sectional view illustrating a coupling structure of the portable flashlight of FIG. 1, and FIG. 5 is an exploded perspective view of a power supply module accommodated in the body of FIG. 1.

1 to 5, the portable flashlight 10 according to the present invention includes a body 100, a head module 200, a conversion module 300, and a power supply module 400.

As shown in Figures 1 to 4, the body 100 is formed inside the hollow so that the power supply module 400 is accommodated, the outer shape is formed in a cylindrical shape as a whole. In addition, the body 100 is formed with a thread 102 on the front outer peripheral surface to be detachably coupled to the head module 200, the thread 104 is formed on the rear inner peripheral surface to be detachably coupled with the conversion module 300. It is.

In addition, the body 100 is made of a conductive material, and is coated with an insulating material on the outer peripheral surface of the conductive material. And a part of the outer circumferential surface of the body 100 is formed with a grip portion 106 made of concave convex shape. The grip portion 106 increases the frictional force between the user's hand and the portable flashlight, thereby preventing the user from dropping the portable flashlight due to carelessness or sweating.

1 to 4, the head module 200 includes a front cover 210, a light source unit 220, a reflector plate 230, a transparent plate 240, and a light source driver 250.

The front cover 210 has a front end and a rear end are open, and the thread 212 is formed on the rear inner peripheral surface, it is detachably coupled to the thread 102 formed on the front outer peripheral surface of the body (100).

In the light source unit 220 of the head module 200, the light source 222 is fixed to the PCB 224. A general lamp may be used as the light source 222, but a light emitting diode (LED) is preferable. In general, LEDs can be used almost semi-permanently with a long service life compared to general filament bulbs or discharge lamps, and the power consumption is so small that they consume less battery 410a, 410b, 410c than economical filament bulbs. In addition, since the present invention can be used for the purpose of emergency light by flashing the light source 222, high-brightness LED is more preferable. In addition, the number of LEDs used as the light source 222 is preferably about 3 to 10.

The reflector 230 is mounted inside the front cover 210, and reflects light toward the side and the rear of the light generated from the light source 222 to be irradiated forward.

The transparent plate 240 is mounted on the open front surface of the front cover 210 to allow the light from the light source 222 and the reflecting plate 230 to be irradiated to the outside, and at the same time, dust or the like inside the front cover 210. To prevent foreign substances from entering.

The light source driver 250 is a driver that turns on / off power supplied to the light source 222 and includes a circuit board 260, an electronic component 270, and an electric wire 280. On the rear surface of the circuit board 260 toward the body 100, a first conductor layer 262 in contact with the positive voltage of the battery 410a and a second conductor layer 264 in contact with the negative voltage of the battery 410c. ) And a third conductor layer 266 contacting the switching information turned on / off by the operation of the switching unit 320 of the switching module 300 is provided on the circuit board 260.

As shown in FIG. 4, the first conductor layer 262, the second conductor layer 264, and the third conductor layer 266 provided on the rear surface of the circuit board 260 are printed on the circuit board 260. Can be formed. That is, the first conductor layer 262 is formed in a round shape at the center of the circuit board 260, and the second conductor layer 264 is formed in an annular shape surrounding the first conductor layer 262 on the circuit board 260. The third conductor layer 266 is formed in an annular shape surrounding the second conductor layer 264 on the circuit board 260. When the body 100 is coupled to the third conductor layer 266, the conductive portion of the body 100 contacts.

However, the conductor layers 262, 264, and 266 are not only printed on the circuit board 260 shown in FIG. 4, but also the anode voltage and the cathode of the batteries 410a, 410b, and 410c on the circuit board 260. Any shape that can supply voltage and carry switching information can be applied.

An electronic component 270 including a chip 272 and a resistor 274 required to drive the light source 222 is mounted on the front surface of the circuit board 260. In the state where the portable flashlight 10 is assembled, the anode voltage supplied to the first conductor layer 262 and the cathode voltage supplied to the second conductor layer 264 are always supplied to the chip 272. In addition, the voltage driving the light source 222 in the chip 272 is connected to the light source 222 through the resistor 274 and the wire 280.

1 to 4, the conversion module 300 includes a rear cover 310, a switching unit 320, and a compass 360.

The rear cover 310 has a front end and a rear end are open, the thread 312 is formed on the front inner peripheral surface, it is detachably coupled to the thread 104 formed on the outer peripheral surface of the rear end of the body (100).

The switching unit 320 includes a fixed block 330, a movable contact body 340, and a movable block 350 to generate switching information turned on / off according to a user's manipulation.

The fixed block 330 includes a fixture 332, a spring 334, and a ground terminal 336. The fixed body 332 fixes the fixed block 330 to the rear cover 310, the spring 334 is provided on the front side of the fixed body 332 is connected to the negative voltage of the battery 410c, the ground terminal ( 336 is provided on the rear side and in contact with the spring 334.

The movable contact body 340 is provided adjacent to the ground terminal 336 and is an elastic member formed in a dome shape with a convex center. The movable contact body 340 moves and contacts the ground terminal 336 according to a user's manipulation.

The movable block 350 is installed at the rear side of the movable contact body 340 in order to pressurize the movable contact body 340 such that the movable contact body 340 is selectively connected to the ground terminal 336. Sliding in the longitudinal direction.

Compass 360 is formed integrally with the movable block 350, and serves to allow the user to identify the bearing through the open rear end of the rear cover (310). In addition, the rear cover 310 has a stepped portion 314 bent inwardly to prevent the movable block 350 and the compass 360 formed integrally therefrom from escaping to the outside of the rear cover 310.

Therefore, the user presses the compass 360 positioned at the open rear end of the rear cover 310 to move the movable block 350 to the front side, such that the movable contact body 340 is connected to the ground terminal 336. can do.

As shown in FIG. 5, the power supply module 400 accommodates the batteries 410a, 410b, and 410c to supply power to the light source driver 250, and includes a case block 420 and a positive electrode conductor 450. ) And the cathode conductor portion 460.

The case block 420 is slightly longer than the length of the AAA type batteries 410a, 410b, and 410c, and has a cylindrical structure of approximately twice the diameter of the AAA type batteries 410a, 410b, and 410c. 410c may be stored in parallel to be electrically connected in series. To this end, the case block 420 largely includes a front plate 422, a support 424, a rear plate 426, an insulation cap 440, and a plurality of springs 430, 434, and 436.

A support 424 having three openings 428 rearward from the rear surface of the front plate 422 is formed integrally, and the rear plate 426 is fastened to the free end of the support 424 by screws 438. . Accordingly, the batteries 410a, 410b, and 410c are respectively accommodated in the case block 420 through three openings 428 formed in the support 424 of the case block 420.

In addition, the front surface of the front plate 422 is coupled to the insulating cap 440 having a through hole 442 in the center. A spring 430 is installed at the rear of the front plate 422. One end of the spring 430 is in contact with the negative electrode of the battery 410b, and the other end is extended in a positive direction perpendicular to the direction in which the spring 430 is compressed to be in contact with the positive electrode of the adjacent battery 410c.

A through hole 432 is formed at the center of the rear plate 426, and springs 434 and 436 are installed at the front surface of the rear plate 426. One end of the spring 434 is in contact with the negative electrode of the battery 410a, and the other end is connected to the positive electrode of the battery 410b. In addition, one end of the spring 434 is connected to the negative electrode of the battery 410c and the other end is connected to the rectangular conductor plate 462. By such a structure, the batteries 410a, 410b, and 410c are stored in the case block 420 and connected in series to obtain a rated voltage required by the light source driver 250.

The anode conductor 450 is configured to supply the anode voltage connected in series by the case block 420 to the light source driver 250, and includes a U-shaped connecting conductor piece 452, a spring 454, and a conductor rod 456. ).

The U-shaped connecting conductor piece 452 is inserted from the side of the front plate 422 and interviews the front and rear surfaces of the front plate 422. The spring 454 is in contact with the U-shaped connecting conductor piece 452 interviewed on the front surface of the front plate 422. Since the conductor bar 456 is connected to the spring 454, it can move back and forth elastically by the spring 454, and the contact with the 1st conductor layer 262 of the light source drive part 250 is easy.

The negative electrode unit 460 is configured to supply negative voltages connected in series by the case block 420 to the light source driver 250 and the switching module 300, and may include a rectangular conductor plate 462 and an annular conductor plate 464. ) And circular conductor plate 466.

The rectangular conductor plate 462 is connected to the negative electrode of the battery 410c through the spring 436. The annular conductor plate 464 is connected to the rectangular conductor plate 462 and is connected to the second conductor layer 264 of the light source driver 250 to supply the cathode voltage to the light source driver 250. The circular conductor plate 466 is connected to the negative electrode of the battery 410c through the through hole 432 of the thick plate 426, and supplies the negative electrode voltage necessary for obtaining switching information from the switching module 300.

Although described with reference to the anode conductor portion 450 and the cathode conductor portion 460 described with reference to FIG. 5, the opposite polarity may be supplied depending on the design.

Hereinafter, the operation of blinking the light source 222 by the operation of the switching unit 320 according to the user's operation will be described in detail.

As shown in FIG. 4, when the portable flashlight 10 is assembled, the anode conductor 450 of the power supply module 400 is in contact with the first conductor layer 262 of the light source driver 250. The anode voltage of 410a is supplied to the light source driver 250. In addition, since the annular conductor plate 464 of the power supply module 400 is in contact with the second conductor layer 264 of the light source driver 250, the negative voltage of the battery 410c is supplied to the light source driver 250. That is, when the portable flashlight 10 is assembled, the light source driver 250 is always supplied with the positive voltage and the negative voltage, so that the chip 272 mounted on the circuit board 260 of the light source driver 250 may operate stably. have.

In FIG. 4, the movable contact body 340 is separated from the ground terminal 336. However, when the movable block 350 moves forward and presses the movable contact body 340 by a user's manipulation, the convex dome-shaped center portion is grounded. Since it is elastically deformed toward the terminal 336 and connected to the ground terminal 336, the negative voltage of the fixed block 330 is transmitted to the rear cover 310 through the movable contact body 340. Meanwhile, since a portion of the conductive region of the rear cover 310 and a portion of the conductive region of the body 100 are in contact with each other, the cathode voltage transmitted to the body 100 is the third conductor layer 266 of the light source driver 250. The chip 272 detects the negative voltage and determines that the switching unit 320 is on. In this case, the chip 272 of the light source driver 250 supplies a voltage for emitting the light source 222 when the switching unit 320 is first turned on, and supplies a voltage to keep the on state.

When the movable block 350 presses the movable contact body 340 again by a user's manipulation, the convex dome-shaped central portion is deformed toward the movable block 350 to be separated from the fixed block 330. In this case, since the switching information transmitted to the chip 272 of the light source driver 250 is information that the switching unit 320 is turned off, the chip 272 cuts off the voltage supplied to the light source 222.

When the user manipulates the switching unit 320 again, the chip 272 determines that the switching unit 320 is turned on. However, in this case, since the switching unit 320 is turned on for the second time, the voltage supplied to the light source 222 is periodically interrupted so that the light source 222 blinks.

When the user manipulates the switching unit 320 once more, the chip 272 determines that the switching unit 320 is off, and cuts off the voltage supplied to the light source 222.

That is, the portable flashlight 10 repeats the above-described process of light source ON-> light source OFF-> light source flashing-> light source OFF according to the user's operation.

As described above, the present invention has been described with reference to preferred embodiments, but those skilled in the art can variously modify and change the present invention without departing from the spirit and scope of the invention as set forth in the claims. You will understand.

As described above, the present invention adds the flashing function of the light source to the portable flashlight with a simple configuration, making it possible to use it as an emergency light, and furthermore, it is easy to carry by reducing the portable flashlight in the longitudinal direction.

1 is a perspective view schematically showing a portable flashlight according to an embodiment of the present invention from the front.

2 is a perspective view schematically showing the portable flashlight of FIG. 1 from the rear;

3 is an exploded perspective view of the portable flashlight of FIG.

4 is a cross-sectional view showing a coupling structure of the portable flashlight of FIG.

5 is an exploded perspective view of the power supply module accommodated inside the body of FIG. 1.

(Explanation of symbols for the main parts of the drawing)

100: body 200: head module

210: front cover 220: light source

222: light source 230: reflector

240: transparent plate 250: light source driver

300: switching module 310: rear cover

320: switching unit 330: fixed block

340: movable contact 350: movable block

400: power supply module 420: case block

450: anode conductor portion 460: cathode conductor portion

Claims

A cylindrical body made of a conductive material and having an open front and rear ends,

A head module having a front cover coupled to the front of the body, a light source unit, and a light source driving unit for driving the light source unit;

A power supply having a case block accommodating a battery for supplying power to the light source driver, a first conductor part for supplying a first polarity voltage to the light source driver, and a second conductor part for supplying a second polarity voltage to the light source driver Module,

A switching coupled to the rear cover coupled to the rear of the body, and the second polarity voltage supplied from the second conductor part to the rear cover to supply the light source driver to the light source driver through the body as switching information according to a user's operation. Portable flashlight comprising a conversion module having a portion.

The method of claim 1,

The first conductor portion includes a spring and a conductor rod connected to the spring,

And the second conductor part comprises an annular conductor plate provided in front of the case block and a circular conductor plate provided at the rear of the case block.

The method of claim 2,

The light source driver includes a circuit board including a first conductor layer to which the conductor rod is in contact, a second conductor layer to which the annular conductor plate is connected, and a third conductor layer to which conductive portions of the body are connected. Portable flashlight.

The method according to claim 2 or 3

When the switching unit is coupled to the rear of the body, a portable flashlight comprising a fixed block in contact with the circular conductor plate and a movable contact body electrically connecting the fixed block and the rear cover according to a user's operation. .

The method of claim 4, wherein

The movable contact body is provided in a dome shape adjacent to the fixed block,

The switching unit further comprises a movable block for moving the movable contact body to be connected to the fixed block.

The method according to claim 1, wherein

The light source unit, a portable flashlight comprising a plurality of light emitting diodes

The method according to any one of claims 1 to 3,

The case block, a portable flashlight, characterized in that a plurality of springs for connecting three batteries arranged in parallel are provided in series.

The method according to any one of claims 1 to 3,

And the first polarity voltage is a positive voltage and the second polarity voltage is a negative voltage.