KR20020055537A - Compact Flashlight Using High Brightness Light Emitting Diode - Google Patents

Abstract

PURPOSE: A subminiature flashlight of using a high brightness light emitting diode is provided to improve a radiation performance by varying an illuminance with connection to a distance between a user and a radiation spot. CONSTITUTION: A battery housing(2) receives a battery(1). A convex lens(30) which refracts light being emitted from the high brightness a light emitting diode(22) is installed at an end portion of a cylinder(3). The cylinder(3) has a displacement of axis direction with respect to the receiving housing(2) in order to control a focus distance of the convex lens(30). The high brightness a light emitting diode(22) is fixed between a front end portion of the receiving housing(2) and a rear end portion of the cylinder(3) by a screw tap(5) in order to be mounted on a PCB(20). One end of a spring(2a) is fixed at a low end portion of the receiving housing(2) to be in contact with the negative terminal of the battery(1) and the other of the spring(2a) is electrically connected with a lead(2b) which is installed at an inner surface of the receiving housing(2).

Description

Compact Flashlight Using High Brightness Light Emitting Diode

The present invention relates to an ultra-compact flashlight using a high-brightness light emitting diode (LED). In particular, it is possible to adjust the illuminance of the irradiation point and the dispersion and concentration of light by sliding the barrel. The present invention relates to a high-performance ultra-compact flashlight capable of exhibiting a lighting device function having a practical brightness and a headlight function.

In general, flashlights were developed for walking in dark areas at night. Currently, street lamps are widely used for emergency purposes such as country roads, hiking, fishing, power outages, and night battles. As a result, its size and shape are determined.

In addition, since the conventional flashlight uses a small bulb which does not need a separate lamp driving circuit, it is possible to obtain a high quality light spectrum of incandescent light, but since the heat loss of the tungsten filament is large, the use time is very short and the filament is disconnected. There is a disadvantage that the breakdown easily occurs.

Therefore, in consideration of the use time, it is difficult to miniaturize because a large manganese battery should be used, and a product using a small battery has a problem that it is difficult to use the light for a long time and high brightness.

Conventional electronic apparatuses having a flashlight function include Korean Utility Publication Nos. 78-770 and 78-812, but these have a type in which a lamp is built into a device and is large in size for a user to carry with them. There is.

Recently, with the explosive increase in the spread of small size mobile communication terminals, a number of flashlights using batteries installed in the terminals have been proposed.

Such flashlights are disclosed in, for example, Korean Patent Publication Nos. 99-85612 and 2000-25428, and Korean Publication Nos. 98-19301, 2000-15595, 2000-17250, and Korean Utility Registration No. 163707. As disclosed in Nos. 164910, 170102, etc., an LED, a small bulb, or a halogen lamp is integrally incorporated in a mobile communication terminal, and the lamp is turned on by the control circuit of the terminal according to a button operation of the terminal. It can be used as a technology.

However, since the pagers of the wireless pager or the CDMA or PCS method have been commercialized in the reduction type, it is becoming more difficult to embed the light emitting lamp in the terminal.

In addition, in the above-described conventional technology, the light emitted from the light emitting lamp serves as a lens due to the difficulty of securing the space. However, since the focusing ability of the light is insufficient, the irradiation light is emitted at a wide angle so that the user desires the light. The illuminance of the survey point was not satisfactory.

In this case, even if it is to be irradiated to the front by using a reflector or a reflector, the small reflector and the single lighting lamp have a limited focusing and illuminance, and the distance between the flashlight and the irradiation point is not adjusted, It was impossible.

In addition, since all the flashlights use electronic devices, when the capacity of the battery remains small due to the use of the main body of the electronic device, the flashlight may not be effectively used at night operation and may be in an emergency situation.

On the other hand, a technique for adjusting the focus or illuminance among the technologies developed for flashlight is disclosed in Korean Patent Publication No. 89-7013 and Utility Model Publication No. 95-12038 and 98-21400. These techniques commonly disclose a method of adjusting the illuminance of the irradiation surface by adjusting the position of the filament little bulb relative to the reflector.

However, this technique has a very complicated structure for varying the illuminance of the irradiated surface, which makes the manufacturing process difficult, expensive, and inferior, and focuses only on the reflector. Therefore, there is a limit to focusing and irradiating light emitted from the lamp. It was not suitable for special applications that required long-distance investigation.

Accordingly, the present invention is conceived in view of the problems of the prior art, the purpose of which is a very simple structure, the brightness of the irradiation point can be varied by interlocking the high brightness light generated from the high-brightness LED to the distance between the user and the irradiation point. It is to provide a portable high-performance flashlight having a light collecting means which has a long distance irradiation ability.

Another object of the present invention is to provide a portable flashlight that can be adjusted in conjunction with the convex lens position of the barrel through the extremely simple structure of the high brightness light generated from the LED by the relative positional displacement between the high brightness LED and the reflector as needed. There is.

Still another object of the present invention is to provide a high-performance flashlight or lighting device of high lux, which is suitable for small size and military use by using a high capacity dedicated battery and a plurality of high brightness LED modules.

Another object of the present invention is provided with a connection cable between the battery pack or the lamp drive unit detachably coupled to the dedicated battery pack or lamp drive unit to mount the lamp drive unit to the hat or helmet, etc. to conveniently use the headlight function To provide a separate flashlight battery / lamp drive.

Another object of the present invention is to remove the breakage failure element of the lamp by adopting a high-brightness LED that is a semiconductor element instead of the conventional filament lamp, and changed to the contact / disconnection method of the electrode terminal and the terminal pad instead of the power switch of the push or sliding method Therefore, the present invention provides a compact flashlight with a beautiful exterior design, high durability, and a very small structure, a very simple structure, a simple manufacturing process, and a low manufacturing cost.

Another object of the present invention is to provide an ultra-compact flashlight having an integrated laser pointer.

1A and 1B are cross-sectional views showing a single lamp type flashlight according to a first embodiment of the present invention and an explanatory view for explaining a power switch structure by contact between an anode / cathode lead piece and an electrode pad;

2 is a cross-sectional view showing a flashlight having a headlight function according to a second embodiment of the present invention;

3A and 3B are respectively a perspective view of a flashlight detachable from a battery pack and a lamp driving body according to a third embodiment of the present invention, and an X-X cross-sectional view of FIG. 3A;

3C is a schematic sectional view showing a modification of the third embodiment having a removable battery storage structure;

4 is a cross-sectional view showing a multi-lamp flashlight having a bent structure according to a fourth embodiment of the present invention;

5a to 5e are measurement diagrams for measuring the difference in brightness of the irradiation surface with distance when using only a general high-brightness LED and when using the device according to the invention,

FIG. 6 is a circuit diagram of a flashlight applicable to the case of using three LEDs, FIG. 6B is a case of using multiple LEDs, and FIG. 6C is a case of using nine LEDs.

7 is a cross-sectional view of a flashlight having a laser pointer function according to a fifth embodiment of the present invention.

* Explanation of Signs of Major Parts of Drawings *

1,1c, 1d; Battery 1a; Positive terminal

1b; Negative terminal 2; Battery storage housing

2a; Spring 2b; Cathode lead piece

2c; Housing cap 2d; housing

3,33; Barrel 3a; Rear end

3b; Lens support 3c; Curved part

3d; PCB support part 3e; PCB support housing

3g; Projections 4-6,4a, 5a; Thread tap

7-7b; Securing clip 8; Anode contact plate

8a; Anode lead piece 9; Insulation Board

10,10a-10f; Flashlight 11; Power switch

12; Snap coupling portions 13,41; Connecting cable

14,45,46; Grooves 16, 16a; Reflector

18; Irradiation surface 20,20a; PCB

20a, 20b; Electrode pads 21 and 21a; Resistor chip

22,26; LEDs 22a, 23a-23n; LED chip

22b; Lens 24; lens

25; Substrates 30 and 30a; Convex lens

35; Laser diode 40; Battery storage pack

42; Plugs 43a and 43b; Knife electrode

44a, 44b; Electrode terminal 50; Lamp driven main body

According to a first aspect of the present invention for achieving the above object, the present invention provides a portable high-performance flashlight using a built-in battery, a battery accommodating housing for accommodating the battery, one end of each of the positive and negative electrodes of the battery An anode and a cathode lead piece in electrical contact with the terminal and the other end extending to the tip end of the battery accommodating housing, a barrel having a rear end movably coupled to the distal end of the battery accommodating housing, and a tip end of the battery accommodating housing; The first and second power pads which are supported on the rear surface are connected to the positive and negative lead pieces, respectively, and are supplied with power, and are mounted on the PCB and have high brightness when the power voltage is applied. A high brightness light emitting diode (LED) for emitting light, and the high brightness LED being supported at the tip of the barrel; From provides a compact flash light with a high luminance light emitting diodes being configured as an optical member for condensing a divergent light into parallel light.

According to a second aspect of the present invention, the present invention provides a battery storage pack having a built-in battery inside the housing, a connecting cable for transmitting power provided from the battery storage pack, and one end snap-connected with the battery storage pack And a housing having a protrusion in which the connection cable is wound at an inner circumference and a groove at the other end thereof, a printed circuit board (PCB) supported by the groove of the housing and supplied with power through a connection cable, and mounted on the PCB. And a high brightness light emitting diode (LED) that emits high brightness light when an adjusted driving voltage is applied based on a power source, a barrel having one end coupled to the front end of the housing in an axial direction, and being supported by the barrel. A high brightness light emitting diode, comprising: optical means for condensing light emitted from the high brightness LED into parallel light To provide a miniature flashlight used.

According to a third aspect of the invention, the invention includes a removable battery for applying a DC power when detachably coupled to the housing, and a pair of electrode terminals physically and electrically connected to the power terminal when the battery is coupled A printed circuit board which is supported by a plug having a recess at a distal end and a first electrode and a second power pad formed on a rear surface of the pair of electrode terminals and recessed in the recess of the plug to receive power; PCB), a load resistor mounted on the PCB to adjust a driving voltage, a high brightness LED emitting light of a high brightness when a driving voltage mounted on the PCB and adjusted by a load resistance is applied, and one end of the plug. A barrel coupled to the rear surface of the barrel so as to be movable in an axial direction, and an optical number for condensing the light emitted from the high-brightness LED into the parallel light supported by the barrel; Provided is a micro flashlight using a high brightness light emitting diode, characterized in that consisting of a stage.

According to a fourth aspect of the present invention, the present invention provides a battery storage pack having a replaceable internal battery in the housing, a power supply cable provided with a plug at the front end and transmitting power provided from the battery storage pack, and the connection cable. A housing having a pair of electrode terminals to which the plugs are coupled and having grooves at the other end, a printed circuit board (PCB) supported by the grooves of the housing and supplied with power through the electrode terminals, and mounted on the PCB. A high brightness light emitting diode (LED) that emits high brightness light when a regulated driving voltage is applied based on a power source, a barrel having one end movably coupled in an axial direction to a distal end of the housing, and supported by the barrel A high brightness light emitting die comprising optical means for condensing light emitted from a high brightness LED into parallel light It provides a compact flashlight with DE.

According to a fifth aspect of the present invention, the present invention provides a battery accommodating housing for accommodating a battery, an anode of which one end is in electrical contact with an anode and a cathode terminal of the battery and the other end is extended to both ends of the battery accommodating housing, and A negative electrode lead piece, a first barrel having one end movably coupled to one side of the battery accommodating housing in an axial direction, a second barrel having one end coupled to the other side of the battery accommodating housing, and a side of the battery accommodating housing; A first printed circuit board (PCB) that is supported and is formed on the rear surface of the first and second power pads connected to the positive and negative lead pieces, respectively, and is supported on the other side of the battery accommodating housing. Third and fourth power pads are respectively connected to the positive and negative lead pieces to supply a second printed circuit board (PCB) to which power is applied, and to the first PCB. A high brightness light emitting diode (LED) mounted on the second PCB, the laser diode (LD) mounted on the second PCB, and emitting a laser light when the power voltage is applied; A first optical member for condensing light emitted from the high luminance light emitting diode into parallel light, and a second optical for condensing light emitted from the laser diode and condensed from the laser diode into parallel light; Provided is a micro flashlight incorporating a laser pointer, which is composed of a member.

The high brightness LED has a structure in which a plurality of high brightness LED chips are mounted on a single substrate and a single lens is molded on the surface thereof, or the high brightness LED has red, green, and blue high brightness LED chips mounted on a single substrate, and a single lens is mounted on the surface thereof. It is made of a molded structure.

Furthermore, a curved portion for integrally reflecting the light emitted from the high-brightness LED toward the optical means at the rear end of the barrel is integrally formed at the inner circumferential portion, or one end is coupled to the LED to transmit the light emitted from the high-brightness LED to the optical means. It may further include a reflector for reflecting toward.

In this case, the focal point of the curved portion may be displaced with respect to the high-brightness LED according to the axial movement of the barrel before and after, and thus the illumination intensity of the irradiation surface and the focus adjustment of the irradiation light may be performed.

The battery may be supplied or cut off according to the axial movement of the barrel, or the battery accommodating housing may further include a screw tab for selectively controlling the contact between the positive electrode terminal of the battery and the positive electrode lead piece. Power supply and disconnection can be made.

Furthermore, in the present invention, the battery accommodating housing has a tip structure at a right angle, whereby the convenience of use of the flashlight can be achieved.

As described above, the present invention provides a high-performance flashlight function by lighting a high-brightness LED without worrying about remaining battery power by providing a dedicated built-in battery housing integrally or detachably combining the battery with a lamp driving body to secure power. have. In addition, its coupling / separation structure is extremely simple and compact, making it easy to carry and to use.

In addition, when using a plurality of high-brightness LED as a light emitting lamp, it is possible to implement a high-lux flashlight or lighting device, and having a light collecting means that can vary the illuminance of the irradiation point according to the distance between the user and the irradiation point. Irradiation light can be utilized effectively by doing so.

In addition, when the battery pack is provided with a connection cable between the battery pack and the lamp driving unit, the lamp driving unit can be used by attaching a hat or helmet, so that the user can use both hands freely at night walking (or marching). can do.

(Example)

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1A is a cross-sectional view illustrating a single lamp type flashlight according to a first embodiment of the present invention, and FIG. 1B is an explanatory diagram for explaining a switch structure by contact between an anode and a cathode lead piece and an electrode pad. 3 is a cross-sectional view showing a flashlight having a headlight function according to a second embodiment of the present invention. FIGS. 3A and 3B are perspective views of a flashlight capable of separating a battery pack and a lamp driving body according to a third embodiment of the present invention. And XX line cross-sectional view of FIG. 3A, FIG. 4 is a cross-sectional view showing a multi-lamp flashlight having a bent structure according to a fourth embodiment of the present invention.

First, referring to FIG. 1, the single lamp flashlight 10 according to the first embodiment of the present invention may use a DC power supply. For example, the built-in battery 1 of 9V may have a cylindrical battery accommodating housing 2. ), A convex lens 30 is incorporated at the distal end of the barrel 3 for refracting the light emitted from the high-brightness LED 22 described later and focusing the light into parallel light.

In addition, the barrel 3 may have a relative axial displacement with respect to the battery housing 2 in order to adjust the focal length of the convex lens 30, and assemble the PCB 20 for mounting the high brightness LED 22. It is preferable that screwing is performed by the screw tab 5 between the front end of the battery accommodating housing 2 and the rear end of the barrel so as to facilitate the operation.

The battery housing 2 in which the battery 1 is accommodated has a spring 2a fixed to the lower end of the battery 1 and elastically contacted with the negative electrode terminal 1b of the battery 1, and actually the battery housing housing ( It is supported by the form inserted in the inner peripheral part recess of 2), and is electrically connected with the cathode lead wire or the lead piece 2b extended to the front-end | tip part of the housing 2. As shown in FIG.

The rear end of the battery housing 2 has a removable clip 7 attached to the outer circumferential part for expansion of the use for convenience of portability and headlights, and the user can easily replace the battery 1. It is preferable to have a structure in which the housing cap 2c is detachable by the screw tab 4. When the thread tab 4 is formed in the housing 2, the interconnection of the separated negative lead 2b is separated when the screw tab 4 is coupled according to a known structure. Will be connected.

At the portion where the positive terminal of the battery 1 is located, a circular positive electrode contact plate 8 is placed in contact with the positive electrode terminal 1a, and the center portion of the positive electrode contact plate 8 is fixed to the battery accommodating housing 2. A tip portion protruding outward through the central portion of (9) is connected to one end of the two-stage bent anode lead piece 8a by riveting or cogging.

The positive and negative lead pieces 8a and 2b are bent at the tip portion with elastic force, and the tip portion is printed in which the high brightness LED 22 and the resistance chip 21 of the surface mount type are mounted on the front and back or front surfaces. It is elastically contacted with a pair of (+) and (-) electrode pads 20a and 20b of the circuit board (PCB) 20 (see FIG. 1B). In this case, the fixing of the PCB 20 may be performed by snap coupling, screwing, or adhesive bonding to either the battery housing 2 or the barrel 3 or the stepped portion and the barrel of the tip of the battery housing 2. The PCB 20 is positioned between the stepped portions of the inner circumference of the rear end of the cuff), and the barrel 3 and the housing 2 are rotated to be coupled using the screw tab 5 so that a natural fixing device is not used. It is also possible to fix.

If the barrel 3 is a unitary body, avoiding fixing the PCB 20 by screw tab coupling of the barrel 3 and the housing 2 will be described later. It is not restricted to the movement before and after 3). However, the problem does not occur if the lens support portion 3b of the convex lens 30 and the rear end portion 3a of the barrel 3 are coupled to the screw tab 6 so as to be slidably movable as they rotate. .

On the other hand, when the PCB 20 is fixed to the rear end of the barrel (3) by rotating the barrel (3) and the housing 2 relative to the positive and negative lead pieces (8a, 2b) the PCB (20) (+) And (-) of the electrode pad (20a, 20b) by contacting or separating it is also possible to turn on / off without a separate power switch. In this case, as shown in FIG. 1B, the screw tab 5 is stable in a state in which the positive and negative lead pieces 8a and 2b are in contact with the band-type (+) and (-) electrode pads 20a and 20b of the PCB 20. It is preferable that the groove and the protrusion coupling to be snap-bonded at the time of the complete rotation coupling to be maintained as added.

In addition, it is also possible to form a screw tab (5a) so that the contact / separation between the positive electrode (1a) and the positive electrode contact plate (8) of the battery (1) in order to serve as the power switch.

Meanwhile, the barrel 3 is integrally formed with a curved portion 3c having a curved profile and serving as a reflector to reflect light emitted from the LED located in the central axis of the barrel forward to an adjacent portion with the LED 22. In addition, the inner circumferential surface of the barrel 3 is preferably coated with light so as to focus efficiently on the front side.

Also, instead of forming the curved portion 3c serving as the reflecting plate integrally with the barrel 3 as in the first embodiment, the separate reflecting plate 16 as in the second embodiment shown in FIG. Of course, it is also possible to use in conjunction with.

Furthermore, when the curved portion 3c serving as the reflecting plate is integrally formed in the barrel 3 or when the reflecting plate 16 is fixed to the inner circumference of the barrel 3, the barrel 3 is used using the screw tab 5. When the light emitting source, that is, the LED 22 is positioned before or after the focus of the reflecting plate or before and after the focus of the reflecting plate, the amount of light reflected from the reflecting plate and irradiated to the front is varied, so that the illumination intensity of the irradiation surface 18 Focus adjustment of the irradiation light can be made.

In the present invention, as a light emitting source, a single lamp type high brightness LED 22 structure including a single LED chip 22a and a single lens 22b made of a transparent epoxy resin on the surface of the LED chip 22a is illustrated in FIG. 1A. Or a multi-LED having a structure in which a single epoxy lens 24 is molded with a plurality of LED chips 23a-23n packaged on one substrate 25 as shown in FIGS. 3B and 4. 26) is used.

In this case, preferably, adjusting the position of the convex lens 30 so that the image focal length of the convex lens 30 is located at the focal lengths of the lenses 22b and 24 of the LED 22 refractes the light emitted from the LED. It is advantageous to focus with parallel light.

The high-brightness LED 22 is a light emitting device manufactured using a compound semiconductor so as to exhibit a higher brightness than conventional LEDs conventionally used for illumination or indicator lamps. For example, high-brightness LEDs are commercially available with 1-3 cd (candela) products developed at a rated current of 20mA, rated voltage of 3.6V, and power consumption of 0.07W. The high brightness LED 22 is a state in which all products that emit white light, which is natural light, including three primary colors of light, such as red, green, and blue, have been developed. The size of the high-brightness LED 22 is, for example, a diameter of about 6 mm when integrating nine LED chips. It can be implemented small.

In this case, when a plurality of LEDs each have a separate lens, the illuminance distribution of the irradiation surface is a combination of a plurality of irradiation lights, but when packaged with a single lens, it is necessary to have a single focus and a single illuminance distribution. As a result, roughness distribution is obtained uniformly.

In the present invention, in order to drive the high-brightness LED 22 at an appropriate rated voltage, a driving circuit as shown in Figs. 6A to 6C can be used.

First, when using the combination of red, green, and blue LEDs (D1-D3), which are three primary colors of light, the resistors R1-R3 for applying an appropriate driving voltage to the front end thereof as shown in FIG. Inserted between and, an appropriate switch S for selectively lighting the red, green, and blue LEDs D1-D3 may be inserted between the LEDs D1-D3 and ground as necessary. In this case, as a four-stage switch, one to three stages may be configured to selectively illuminate only one red, green, and blue LED (D1-D3) and to illuminate white light by turning on all three LEDs. Can be. In this case, the LEDs D1-D3 and the resistors R1-R3 are preferably integrated into one chip.

In addition, when 9V is used as the driving power source Vcc, the combination of 9 LEDs D1-D9 is applied to the driving circuit of the LEDs D1-D9 so that 3V is applied by combining three LEDs in parallel as shown in FIG. 6C. It is also possible to form a driving circuit.

The high-brightness LED is suitable for a resistance value of 420Ω when the driving power supply (Vcc) is 12V, 270Ω when the voltage is 9V, and 120Ω when the voltage is 6V.

In addition, when the light emitting source is a multi-LED 26 composed of a plurality of high-brightness LED chips 23a-23n as shown in FIG. 3B, a plurality of resistors R1-Rn are formed using a resistor chip R composed of a single chip. The driving circuit can be configured as shown in 6b.

On the other hand, as a result of measuring and measuring the brightness obtained on the irradiated surface at a certain distance using the single high-brightness LED 22, as shown in Figure 5a the distance between the LED and the irradiated surface is 300mm, the reflection plate and the convex lens is not used in general In the case of 300mm in diameter, 4LUX at the edge and 23LUX at the center were obtained, but light appeared.

As shown in FIG. 5B, when the distance between the LED 22 and the irradiation surface 18 is 300 mm and the present invention using the reflecting plate 16 and the convex lens 30 has a diameter of 200 mm, 5 LUX and a diameter of 100 mm at the side of the irradiation surface are shown. 23LUX illuminance is obtained in the center, and the center and sides have relatively even brightness.

In addition, as shown in FIG. 5C, when the distance between the LED and the irradiation surface is changed to 500 mm in FIG. 5A and the reflecting plate and the convex lens are not used, when the diameter of the irradiation surface is 400 mm, the illuminance of 1.5 LUX at the edge and 6 LUX at the center is Obtained, and the illuminance was low in inverse proportion to the distance.

In the present invention set to 500mm by adjusting only the distance between the LED and the irradiation surface in the condition of FIG. 5b as shown in FIG. 5d, if the diameter of the irradiation surface is 400mm, the illuminance of 2.5-12LUX at the edge and 12LUX at the center is obtained. And stools showed relatively even brightness.

In the measurement test of FIG. 5E, when the diameter of the irradiation surface 18 is 300 mm in the present invention in which the position of the convex lens 30 is properly adjusted by rotating the barrel 3 under the condition of FIG. At the center of 150mm, illuminance of 20-30LUX is obtained, and the center is bright and the sides are dark but the brightness is almost the same.

As described above, when using the single lamp type flashlight 10 according to the first embodiment of the present invention, it was confirmed that sufficient brightness was obtained to identify letters at night in the range of 300-500 mm. . Therefore, in the multi-LEDs 26 using the plurality of LED chips 23a-23n, illuminance in proportion to the number of integrated LED chips is obtained, so that long-range irradiation can be performed as a small size.

In the flashlight 10 of the first embodiment configured as described above, the DC power is supplied to the PCB by contacting the battery 1 power supply with the electrode pads 20a and 20b of the PCB 20 according to the sliding movement of the barrel 3. When the high-brightness LED 22 is turned on, the light emitted from the light is reflected or curved from the curved portion 3c or directly through the convex lens 30 at the tip of the barrel 3 to be refracted by parallel light and focused on the irradiation surface. (18) is investigated. In this case, the user rotates the lens support part 3b of the barrel according to the distance between the flash light 10 and the irradiation surface 18 to move the convex lens 30 forward and backward so that the irradiation range of the irradiation surface is wide or Narrowly variable, the illuminance is inversely proportional to this to adjust the desired irradiation area.

In addition, the user can use the flashlight 10 in a pocket or bag by using the clip (7) because the flash light (10) is small and lightweight, and can be used in an emergency. It can also be used as a headlight by sending a signal to a distant ally or by mounting it on a cradle.

Furthermore, since the high-brightness LED is a low current driving / low power consumption type, the use time is greatly increased by 20 times or more compared with the conventional filament lamp driving method using a small electric bulb or a halogen lamp, and there is almost no possibility of failure.

In the second embodiment 10a shown in FIG. 2, a PCB support 3d is coupled between the battery accommodating housing 2 and the barrel 3, and a recess 14 is provided at the distal end of the PCB support 3d. The PCB 20 is supported, and the rear end of the PCB support 3d is detachably coupled via the front end of the battery accommodating housing 2 and the snap coupling portion 12.

In addition, the distal ends of the positive electrode contact plate 8 and the negative lead piece 2b are connected to one end of the connecting cable 13, and the other end of the connecting cable 13 passes through the PCB support part 3d via the power switch 11. It is connected to the electrode pad (20a, 20b) of the PCB 20. In this case, it is preferable that the connecting cable 13 can be automatically wound on the protrusion 3g of the support 3d when the battery accommodating housing 2 and the PCB support 3d are coupled using a spring cord having elastic force. Do.

In this case, in the flashlight 10a of the second embodiment, the driving circuits of the battery housing 2, the barrel 3, and the high-brightness LED 22 are substantially the same as those of the first embodiment, and thus the description thereof is omitted. do.

However, in the second embodiment, when the battery accommodating housing 2 and the barrel 3 are used separately, the outside is generally exposed to the barrel 3 so that the power switch 11 of the push or sliding type on the barrel 3 is provided. In order to facilitate the use by separately installing the outside, it is also possible to configure without installing the power switch 11 to the outside by adopting the screw tab (5a) as in the first embodiment.

In addition, in the first embodiment, the removable fixing clip 7 was used for the housing 2, but the integrated fixing clip 7a was used as in the second embodiment, and the tip of the barrel 3 separated from the housing was also used. By forming an integrated fixed clip (7b), when used as a headlight to separate the housing (2) and the barrel (3) so that each can be easily attached to the user's pocket and hat or helmet. As a result, it can be usefully used for night hiking or night operation.

Meanwhile, in the flashlight 1b according to the third embodiment shown in FIG. 3A, the battery storage pack 40 is separately separated as a modification of the second embodiment, and the battery storage pack 40 is connected to the connection cable 41. It is coupled to the lamp drive main body 50 through the through and has a structure for supplying DC power.

The other end of the cable 41 is provided with a power plug 42 so that a pair of knife electrodes 43a and 43b protrude from the tip.

In addition, since the barrel 3 of the lamp drive main body 50 and the drive circuit of the high-brightness LED 22 are comprised substantially the same as 1st Embodiment, it abbreviate | omits description about this.

However, in the third embodiment, the PCB support housing 3e is slidably coupled to the rear end of the barrel 3 through the screw tab 6, and the PCB support housing 3e is formed at the front end. PCB 20 equipped with multi-LEDs 26 is fixed to the recess 45, and the knife electrodes 43a and 43b of the plug 42 are inserted into the rear end of the housing 3e to be physically and electrically coupled. A pair of electrode terminals 44a and 44b are formed, and the other ends of the electrode terminals 44a and 44b extend into the recess 45 to serve as a power jack in a one-step bent structure.

In this case, the pair of electrode terminals 44a and 44b may have elastic ends in contact with electrode pads 20a and 20b of the PCB 20.

In addition, the battery storage pack 40 composed of the battery housing 2 and the built-in battery is substantially the same as the structure of the first and second embodiments, and only the DC power output of the battery is connected to one end of the connecting cable 41. Has a structure.

In the first to third embodiments described above, the cylindrical battery 1 is used as an example. However, the battery pack may be formed by a rectangular Li secondary battery.

Furthermore, in the third embodiment, when the positive and negative terminals of the battery 1c are formed to one side, such as the modified flashlight 10c illustrated in FIG. 3c, the PCB support housing may be used without using a separate battery accommodating housing. The power jack of 3e) is, of course, made of a structure in which the electrode terminals 44a and 44b are extended to the groove 46 to which the battery 1c is detachably coupled. In this case, the user may carry and use the removable battery 1c in combination with the recess 46 of the PCB support housing 3e when necessary. If necessary, it is also possible to provide a power switch structure in the above-described manner to turn on / off the power in a state where the battery is coupled.

The rest of the structure of the modification is the same as in the third embodiment. Such a structure that does not use a separate housing leads to a reduction in the overall size, weight and manufacturing cost of the flashlight.

On the other hand, the configuration of the first embodiment 10 described above is bent at the front end portion of the battery housing 2d at right angles, as in the flashlight 10d of the fourth embodiment shown in FIG. The rear end of the) is detachably coupled by the screw tab 5 to form a shape bent at a right angle as a whole.

In this case, the power switch 11 is inserted in the middle of the cathode lead piece 2b, and the tip portion and the anode lead piece 8b have a structure in which the electrode pads 20a and 20b of the PCB 20 are elastically contacted. Have The remaining structure of the fourth embodiment has the same or similar structure as that of the first embodiment.

When deformed in this way, by using a fixed clip (7) formed on the upper portion of the housing (2d) to hang the clip fixed to the chest or waist of the mountaineering or military uniforms of the user, such as headlights or battery storage housing (2d) ) Can be conveniently used by holding the power switch 11 on / off.

The flash light 10-10d configured as described above is supplied with a DC power supply of the batteries 1 and 1c so that the high-brightness LEDs 22 and 26 are turned on and the light emitted therefrom is reflected or directly transmitted from the reflector 16. (3) While passing through the convex lens 30 at the tip portion, the light is refracted into parallel light and focused on the irradiation surface 18.

In this case, if the user rotates the barrels 3 and 3c according to the distance between the flash light and the irradiation surface and moves the convex lens 30 forward and backward, the irradiation range and illuminance of the irradiation surface can be varied, so that the desired irradiation area can be changed. Can be adjusted.

However, since the batteries (1, 1c) is a high capacity battery, even if a plurality of high-brightness LED chips 23a-23n are molded with a single epoxy lens 24 and employ a component composed of a single unit, it is possible to use the battery for a long time without limiting the use time. In this case, a powerful flashlight function is provided to accurately check a distant object by focusing powerful irradiated light emitted from a plurality of high-brightness LED chips 23a-23n using the convex lens 30 at the distal end. Will be exercised.

On the other hand, since the barrel 3 has a very short focal length of the LED lenses 22b and 24 and an image focal length of the convex lens 30, the actual size is made very compact. Thus, the overall size of the flashlight can be made slightly larger than the battery receiving housing.

In the above-described embodiment, the resistor chip 21 is used to adjust the driving voltage of the LED 22. However, it is also possible to use a small resistor component that is not a chip type, and the fixing of the reflector 16 is performed by LED ( 22), it is possible to fix to either the PCB 20 or the barrel (3).

In addition, in the above embodiment, it is illustrated that a single convex lens 30 is adopted for the focusing action on the barrel 3, but it is also possible to implement using a plurality of optical lenses, the lens at the tip of the barrel 3 A separate white or color floodlight plate may be combined for protection of the light.

Moreover, in the above embodiment, a battery accommodating housing is designed by taking a case of employing a cylindrical or rectangular battery having a relatively large capacity and relatively inexpensive battery capacity, but for example, the battery accommodating housing of the first embodiment shown in FIG. Of course, it is also possible to use one or more ultra-compact and high-performance button-type batteries in (2). In this case, the overall size can be made more compact according to the miniaturization of the housing.

7 shows a flashlight 10e having a laser pointer 10f integrated therein according to a fifth embodiment of the present invention.

As shown in the fifth embodiment, the flashlight 10e using the high-brightness LED 22 is implemented on one side of the battery accommodating housing 2, and the other side of the battery accommodating housing 2 is implemented. The laser pointer 10f employing the laser diode (LD) 35 is integrally implemented.

In this case, the flashlight 10e is configured in the same manner as in the first embodiment, except that only three 1.2V button-type batteries 1d are used as internal batteries.

In addition, the laser pointer 10f has the same structure as the flashlight 10e except for replacing the laser diode (LD) 35 instead of the high brightness LED 22. For reference, the driving voltages of the laser diode 35 and the LED 22 are similar to each other.

That is, the positive and negative lead portions 8a and 2b which are connected to the positive and negative electrodes of the battery 1d and are embedded in the battery accommodating housing 2 are separated by the screw tab 4a at the rear end of the housing 2. It extends into the barrel 33 which can be coupled, and the front-end | tip part thereof is preferably elastically contacting the electrode pad of the PCB 20a for supporting the LD35.

LD is mounted on the opposite side of the PCB 20a, the reflecting plate 16a is coupled to the outer circumference of the LD, and the convex lens 30a for focusing the laser generated from the LD 35 is attached to the barrel 33 of the LD. It is installed at the focal length.

Therefore, the power switch of the battery 1d is configured as a sliding type switch which can selectively apply one of the flashlight 10e and the laser pointer 10f to the power switch (not shown), or the screw taps 5 and 4a. ) Allows for selective operation.

Therefore, the fifth embodiment is very compact and has a laser pointer together with a flashlight, which can be usefully used.

In addition, the laser pointer 10f module serves as a laser pointer when the laser pointer 10f module is combined with the lamp driving body 50 of the flashlight 10-10d.

On the other hand, in the above embodiment is illustrated that the coupling between the housing and the barrel is made using a screw tab, it is also possible to simply slide in a straight line configuration by the press-fit coupling method.

As described above, the present invention provides a high-performance flashlight function by lighting a high-brightness LED without worrying about remaining battery power by providing a dedicated built-in battery housing integrally or detachably combining the battery with a lamp driving body to secure power. have. In addition, its coupling / separation structure is extremely simple and compact, making it easy to carry and to use.

In addition, when using a plurality of high-brightness LED as a light emitting lamp, it is possible to implement a high-lux flashlight or lighting device, and having a light collecting means that can vary the illuminance of the irradiation point according to the distance between the user and the irradiation point. Irradiation light can be utilized effectively by doing so.

In addition, when the battery pack is provided with a connection cable between the battery pack and the lamp driving unit, the lamp driving unit can be used by attaching a hat or helmet, so that the user can use both hands freely at night walking (or marching). can do.

Claims (16)

In the portable high performance flashlight using the built-in battery, A battery accommodating housing for accommodating the battery; A positive and negative lead pieces each of which has one end electrically contacting the positive and negative terminals of the battery and the other end of which extends to the front end of the battery accommodating housing; A barrel having a rear end coupled to the front end of the battery accommodating housing in an axial direction; A printed circuit board (PCB) supported by the front end portion of the battery accommodating housing and provided with a first and second power pads connected to the positive and negative electrode leads, respectively, to receive power; A high brightness light emitting diode (LED) mounted on the PCB and emitting high brightness light when the power supply voltage is applied; The micro flashlight using a high brightness light emitting diode, characterized in that it is supported by the front end portion of the barrel and composed of an optical member for condensing the light emitted from the high brightness LED into parallel light. Battery storage pack with a built-in battery in the housing, A connection cable for transmitting power provided from the battery pack; A housing having one end snapped to the battery pack and having a protrusion in which the connecting cable is wound at an inner circumference thereof, and having a groove at the other end thereof; A printed circuit board (PCB) supported by the groove of the housing and receiving power through a connection cable; A high brightness light emitting diode (LED) mounted on the PCB and emitting high brightness light when a driving voltage adjusted based on a power source is applied; A barrel having one end coupled to the front end of the housing so as to be axially movable; Ultra-compact flashlight using a high-brightness light emitting diode, characterized in that it is supported by the barrel and consists of optical means for condensing light emitted from the high-brightness LED into parallel light. Removable battery for applying a DC power when detachably coupled to the housing, A plug including a pair of electrode terminals physically and electrically connected to a power terminal when the battery is coupled, and having a recess at a distal end portion; A printed circuit board (PCB) supported by the recess of the plug and elastically contacting the first and second power pads formed on the rear surface of the pair of electrode terminals and the recess to receive power; A load resistor mounted on the PCB and configured to adjust a driving voltage; A high brightness LED mounted on the PCB and emitting high brightness light when a regulated driving voltage is applied through a load resistance; A barrel having one end coupled to the rear surface of the plug to be axially movable; Ultra-compact flashlight using a high-brightness light emitting diode, characterized in that it is supported by the barrel and consists of optical means for condensing light emitted from the high-brightness LED into parallel light. Battery storage pack with a replaceable battery inside the housing, A connection cable transferring power provided from the battery pack and having a plug formed at the front end thereof; A housing having a pair of electrode terminals to which the plug of the connection cable is coupled and having a recess at the other end thereof; A printed circuit board (PCB) supported by the recess of the housing and receiving power through the electrode terminal; A high brightness light emitting diode (LED) mounted on the PCB and emitting high brightness light when a driving voltage adjusted based on a power source is applied; A barrel having one end coupled to the front end of the housing so as to be axially movable; Ultra-compact flashlight using a high-brightness light emitting diode, characterized in that it is supported by the barrel and consists of optical means for condensing light emitted from the high-brightness LED into parallel light. The ultra-compact flashlight according to any one of claims 1 to 4, wherein the high brightness LED has a structure in which a plurality of high brightness LED chips are mounted on a single substrate and a single lens is molded on the surface thereof. The ultra-compact flashlight according to any one of claims 1 to 4, wherein the high brightness LED has a structure in which a red, green, and blue high brightness LED chip is mounted on a single substrate, and a single lens is molded on the surface thereof. 7. The ultra-mini flashlight of claim 6, further comprising first to third selection switches for shutting off power to selectively drive the red, green, and blue high brightness LED chips. The ultra-compact flashlight according to any one of claims 1 to 4, wherein a curved portion for reflecting the light emitted from the high-brightness LED toward the optical means is integrally formed at the inner peripheral portion at the rear end of the barrel. 5. The ultra-small flashlight according to any one of claims 1 to 4, further comprising a reflecting plate whose one end is coupled to the LED to reflect the light emitted from the high brightness LED toward the optical means. The ultra-compact flashlight according to claim 8, wherein the focal point of the curved portion is displaced with respect to the high brightness LED according to the axial movement of the barrel. The ultra-compact flashlight according to any one of claims 1 to 4, wherein the battery is powered on and off according to the axial movement of the barrel. The ultra-compact flashlight of claim 1, wherein the battery accommodating housing further comprises a screw tab for selectively controlling contact between the positive electrode terminal of the battery and the positive electrode lead piece. The ultra-compact flashlight of claim 1, wherein the battery accommodating housing has a tip portion at a right angle structure. The ultra-small flashlight of claim 1, wherein the battery accommodating housing further comprises a substrate for supporting the anode lead piece. The ultra-compact flashlight according to any one of claims 1 to 4, wherein the flashlight further comprises at least one clip-type fixing member for maintaining a fixed position when worn. A battery accommodating housing for accommodating a battery, an anode and cathode lead piece having one end electrically contacting the positive and negative terminals of the battery and the other end extending to both ends of the battery accommodating housing, and one end of the battery accommodating housing; A first barrel movably coupled to one side in an axial direction, a second barrel having one end coupled to the other side of the battery accommodating housing, and first and second power pads supported on one side of the battery accommodating housing and formed on a rear surface thereof; A first printed circuit board (PCB) connected to the positive and negative lead pieces to receive power, and a third and a fourth power pad formed on a rear surface of the battery housing housing and supported on the other side of the battery accommodating housing, respectively. A second printed circuit board (PCB) connected to the lead piece to receive power, and mounted on the first PCB, when the power supply voltage is applied, A high brightness light emitting diode (LED) that emits light of a degree, a laser diode (LD) mounted on the second PCB and emitting a laser light when the power supply voltage is applied, and supported by the first tube and from the high brightness light emitting diode A laser pointer, comprising: a first optical member for condensing emitted light into parallel light; and a second optical member supported on the second barrel and condensing light emitted from the laser diode into parallel light; Ultra-compact flashlight with integrated.