JP5047396B1 - LED lighting fixture - Google Patents

Abstract

An object of the present invention is to provide an LED illuminator that can illuminate the entire room brightly with a wide irradiation angle and that is not dazzling even when a user looks directly.
[Solution]
A hollow frame made of a long cover made of a translucent material, end parts attached to both ends of the long cover, and a heat-dissipating metal disposed so as to protrude outward from the opening end side of the long cover And an elongate circuit board mounted on the hollow frame, and an LED that can be mounted on an existing fluorescent lamp apparatus main body on which one side of the board is used as a light source arrangement surface and a light source composed of an LED light emitting element is mounted thereon A lighting fixture,
The elongated cover has an opening edge bent at a predetermined width inwardly, and the opening of the elongated cover bent in a guide groove arranged to extend along the longitudinal direction of the hollow frame. An LED illuminator characterized in that an end side is fitted.
[Selection] Figure 1

Description

The present invention relates to a straight tube type LED lighting device suitable as a substitute for a conventional straight tube fluorescent lamp among lamps using light emitting elements as light sources such as LEDs (light emitting diodes).

LED light-emitting elements have features such as power saving, high brightness, and long life, and are therefore regarded as next-generation lighting devices. Although this LED-type lighting fixture has already been commercialized, as one measure for further promoting commercialization, it is considered that it can be used as it is by replacing it with an existing fluorescent lamp.

The LED illuminator is formed into a lamp by sealing a light emitting element (chip) that emits light when energized with a translucent material such as glass or resin, and when applied to an illuminator of a straight tube fluorescent lamp alternative method In addition, a large number of LED light-emitting elements must be mounted on an elongated substrate (circuit board), and the substrate must be disposed inside the cylinder, and end members with two pins protruding from the left and right ends of the cylinder It is necessary to install. And since the board | substrate is elongate, it is necessary to hold | maintain stably, and it is necessary to hold | maintain the relationship between a board | substrate and a pin so that light may be irradiated to a fixed direction in the state which inserted the pin in the fluorescent lamp fixture main body.

As such an example, for example, Japanese Patent Application Laid-Open No. 2010-129382 (see Patent Document 1) discloses an elongated cylindrical body made of a light-transmitting material and having both end openings, end members attached to both ends of the cylindrical body, A lamp having a long and narrow substrate disposed inside a cylindrical body, and a light-emitting element type light source is mounted on the light source arrangement surface on one side of the substrate,
Inside the cylindrical body, a holder member for holding the substrate is disposed so as to extend long along the longitudinal direction of the cylindrical body, and the holder member and the left and right end members are relatively arranged around the axis of the cylindrical body. There has been proposed a lamp that holds the relative position between the end member and the substrate constant by fitting them so as not to rotate.

Japanese Patent Application Laid-Open No. 2010-3683 (see Patent Document 2) includes at least a substrate that extends integrally or extends long intermittently, a large number of LEDs that are arranged on one or both sides of the substrate, and at least a substrate. And a cover member made of an elongated synthetic resin having a cylindrical shape or a groove shape covering from the LED side. The cover member has translucency, and a fitting groove is formed over the entire length on the inner surface of the cover member. A light-emitting element type illumination lamp has been proposed in which the circuit board is held in a fitting groove and cannot be deformed via a reflection plate 26 and an auxiliary cover body.

Japanese Patent Laid-Open No. 2008-287994 (refer to Patent Document 3) includes a lighting device including a plurality of LEDs, and a plurality of LEDs mounted and supported, and a power supply circuit for lighting the plurality of LEDs is mounted. There has been proposed an illuminating device including a supporting body to be supported and having a plurality of LEDs and / or power supply circuits accommodated in the supporting body.

In JP 2006-100036 A (see Patent Document 4), a terminal pair A and a terminal pair B are provided at both ends of a rod-shaped body, and one end of an LED array is connected to the terminal pair A via a diode OR circuit. The other end of the LED array is connected to the terminal pair B, and this diode OR circuit has a function of preventing a backflow between the terminals A1 and A2, a function of rectifying the AC input from the terminal pair A, and a reverse function to the LED array. It has a function to prevent voltage from being applied, and the terminal pair A and the terminal pair B can be fitted to the sockets of existing fluorescent lamp fixtures regardless of whether they are attached from either of the left and right ends. Possible LED lighting devices have been proposed.

JP 2010-129382 A JP 2010-3683 A JP 2008-287994 A JP 2006-100036 A

In the conventional straight tube type fluorescent lamp alternative type LED illuminator, even in Patent Document 1 including a cylindrical translucent cover, the substrate installation part is flat and the translucent cover part has an arc shape or the like. In the formed Patent Documents 2 and 3 as well, basically the irradiation light emitted from the LED light emitting element is irradiated from the substrate surface within an angle range of 180 ° at most, and the entire room is brightly illuminated because the irradiation angle is narrow. There was a problem that it was difficult to do, and it was dazzling when the user looked directly.

Furthermore, in terms of the influence of heat generated by the LED light-emitting element, it is necessary to take a heat dissipation measure for the frame on which the board is mounted because the distance between the LED light-emitting element and the light-transmitting cover portion is short, and rigidity and strength are reduced. From the standpoint of maintaining, there was a problem of raising the cost and the like in order to adopt the reinforcing structure.

The present invention is for solving such a problem, and it is possible to illuminate the entire room brightly with a wide irradiation angle, and there is no problem of being dazzling even when the user looks directly. LED lighting fixtures can be provided, and the distance between the LED light-emitting element and the translucent cover part can be spoken, which is also effective for heat dissipation measures for the frame on which the board is mounted, and also effective in terms of maintaining rigidity and strength. It aims at providing a typical LED lighting fixture.

The present invention includes a long cover having an inverted U-shaped cross section made of a translucent material, open at both ends, end parts attached to both ends of the long cover, and a longitudinal direction at the opening end of the long cover. And a hollow frame made of a heat-dissipating metal disposed so as to protrude outward from the opening edge of the long cover, and an elongated circuit mounted on the hollow frame and disposed inside the long cover The present invention is directed to an LED illuminator that can be mounted on an existing fluorescent lamp fixture body, in which one side of the substrate is used as a light source arrangement surface and a light source composed of an LED light emitting element is mounted on the substrate.

In the LED lighting device according to claim 1, in the long cover, the opening end side is bent inward with a predetermined width, and is arranged so as to extend long along the longitudinal direction of the hollow frame. The long cover is coupled to the hollow frame by fitting the open end of the long cover bent into the hollow frame, leaving a light- transmitting portion having a predetermined width .

The LED illuminator according to claim 2 is characterized in that the long cover is attached to the hollow frame so that an opening end side thereof has a height substantially matching a plate surface of the circuit board.

The LED illuminator according to claim 3 is characterized in that the end parts attached to both ends of the long cover are each made of a base with a terminal which is fitted into an existing fluorescent lamp apparatus main body from the outer end surface thereof.

5. The LED lighting device according to claim 4, wherein a rectifier circuit is incorporated in a series circuit in which the LED light emitting elements are connected in series in the circuit board, and a resettable fuse is connected to the rectifier circuit, whereby an existing fluorescent lamp fixture is provided. It is characterized by being able to be mounted on the main body from any direction.

In the LED lighting device according to the first aspect of the present invention, it is possible to illuminate the entire room brightly with a wide irradiation angle, and to provide an LED lighting device that is not dazzling even when the user looks directly. it can be further be able to increase the distance between the LED light emitting element and the light-transmitting cover portion, also effective for heat dissipation of the frame for mounting the substrate, effective LED lighting fixture in terms of maintaining the rigidity and strength It became possible to provide.
In addition, since the opening end of the bent long cover is inserted into the guide groove, leaving a light-transmitting portion with a predetermined width, light from the light source is emitted from the light-transmitting portion to the rear of the LED lighting device. As a result, it is possible to illuminate the entire room more uniformly, so that the lighting can be made less glaring to the eyes.

In the LED lighting device according to the second aspect, the irradiation angle can be dramatically increased as compared with the existing products, and the distance from the long cover made of the translucent material can be widened. Therefore, even if the user looks directly, it can be set as an LED lighting device that hardly feels glare.

In the LED illuminator according to claim 3, since the end parts mounted on both ends of the long cover are configured to have a base with a terminal fitted into an existing fluorescent lamp fixture body from the outer end surface thereof, It has almost the same structure as the lighting fixture, and can be attached to the existing fluorescent lighting fixture body very easily.

5. The LED lighting device according to claim 4, wherein a rectifier circuit is incorporated in a series circuit in which the LED light emitting elements are connected in series in the circuit board, and a resettable fuse is connected to the rectifier circuit, whereby an existing fluorescent lamp fixture is provided. It can be attached to the main body from any direction, and an LED lighting device with very few failures can be provided.

It is a schematic perspective view which shows the state of the coupling | bonding of the elongate cover and hollow frame explaining embodiment of the LED lighting fixture of this invention. It is the schematic sectional drawing. An example of a base with a terminal which constitutes end parts is shown, (a) is the front view, (b) is the side view, and (c) is the perspective view. The other example of the nozzle | cap | die with a terminal which comprises an edge part part is shown, (a) is the front view, (b) is the side view, (c) is the perspective view. BRIEF DESCRIPTION OF THE DRAWINGS The circuit diagram of the LED lighting fixture of this invention is shown, (a) shows 1 block serial circuit (DC nonpolarity), (b) shows the mounting diagram of DC nonpolar circuit, respectively.

Next, embodiments of the LED lighting device of the present invention will be described in detail with reference to the drawings.
1 and 2, an LED lighting tool 10 includes a long cover 11 having a reverse U-shaped cross section made of a translucent material and having both ends opened, and end parts 12 attached to both ends of the long cover 11 ( 3 and 4), and attached to the opening end side 13 of the long cover 11 along the longitudinal direction, and arranged to protrude outward from the opening end side 13 of the long cover 11. A hollow frame 14 made of a heat dissipating metal and an elongated circuit board 15 mounted on the hollow frame 14 and arranged inside the long cover 11 are provided. One side of the circuit board 15 is used as a light source arrangement surface. A light source composed of the LED light-emitting element 16 is mounted.
The circuit board 15 has a width dimension smaller than that of the hollow frame 14, and one surface thereof is a light source arrangement surface 15a, and a large number of LED light emitting elements 16 are arranged in a line on the light source arrangement surface 15a. . Although not shown in the drawing, a circuit is printed on the light source arrangement surface 15a of the circuit board 15 or the back surface 15b on the opposite side. As will be described later, terminals 23 protruding outward are attached to both ends of the circuit board 2.

As described above, the LED illuminator 10 of the present invention has an appearance similar to that of a straight tube fluorescent lamp, and the total length matches the standard of the fluorescent lamp. The long cover 11 is preferably made of a transparent resin material such as transparent or translucent (for example, milky white) polycarbonate.

In the long cover 11, the opening end side 13 is bent inward at a substantially right angle with a predetermined width, and on the other hand, guide grooves 21 are arranged at both end portions of the hollow frame 14. The long cover 11 is coupled to the hollow frame 14 by fitting the opening end side 13 of the bent long cover 11 into the guide groove 21 leaving a light-transmitting portion 13a having a predetermined width. ing.
Further, the long cover 11 is attached to the hollow frame 14 so that the opening end side 13 thereof has a height that substantially coincides with the plate surface of the circuit board 15. That is, by forming the mounting groove 22 of the circuit board 15 inside the corresponding height of the guide groove 21, the opening end side 13 of the long cover 11 and the plate surface of the circuit board 15 substantially coincide with each other. Can be height.

In the LED lighting device 10 of the present invention configured as described above, since the opening end side 13 of the long cover 11 and the plate surface of the circuit board 15 are made to substantially coincide with each other, the irradiation angle becomes wide. It is possible to brightly illuminate the whole, and it is possible to solve the problem of being dazzling even when the user looks directly.
Furthermore, the LED light emitting device 16 can talk about the distance between the long cover 11 part, and is effective for heat dissipation of the hollow frame 14 on which the circuit board 15 is mounted, and is effective in maintaining rigidity and strength. An instrument 10 can be provided.
Moreover, since the open end 13 of the bent long cover 11 is fitted into the guide groove 21 leaving a light-transmitting portion 13a having a predetermined width, the light-transmitting portion 13a is also behind the LED lighting device 10. Since the light from the light source is emitted and the entire room can be illuminated more uniformly, it is possible to achieve illumination that is not dazzling to the eyes.

FIG. 3 and FIG. 4 show examples of end parts attached to both ends of the long cover 11, and the end parts are made up of caps 12 and 12 'with terminals, respectively.
3 (a) to 3 (c) are provided with two L-shaped terminals 23 that are fitted into the existing fluorescent lamp fixture main body from the outer end surface thereof. Of course, the other end of the terminal 23 is electrically connected to the circuit board 15.
The terminal-attached base 12 has a plate-like outer frame portion 12-1 disposed on the outer side and an elliptical inner frame portion 12-2 disposed on the inner side. The arch-shaped portion 12-1a having an inverted U-shaped cross section on which the long cover 11 is mounted and the dish-shaped portion 12-1b on which the outer contour portion of the hollow frame 14 is mounted. 12-1c is a screw hole for coupling with the hollow frame 14, and a notch 12-2a is formed in the inner frame portion 12-2 corresponding to the screw hole 12-1c.

4 (a) to 4 (c) are provided with two pin-shaped terminals 23 'that are fitted into the existing fluorescent lamp apparatus main body from the outer end surface thereof. Of course, the other end of the terminal 23 ′ is electrically connected to the circuit board 15.
As in the example of FIG. 3, the structure of the terminal-equipped base 12 includes a plate-like outer frame portion 12-1 arranged outside and an elliptical inner frame portion 12-2 arranged inside. The outer frame portion 12-1 includes an arch-shaped portion 12-1a having an inverted U-shaped cross section for mounting the long cover 11 and a dish-shaped portion 12-1b for mounting the outer contour portion of the hollow frame 14. ing. 12-1c is a screw hole for coupling with the hollow frame 14, and a notch 12-2a is formed in the inner frame portion 12-2 corresponding to the screw hole 12-1c.

As described above, in the LED lighting device 10, the two terminals 23 that are fitted into the existing fluorescent lamp fixture main body from the outer end surfaces of the end parts 12 attached to both ends of the long cover 11 protrude. Therefore, the structure is almost the same as that of the existing fluorescent lamp fixture, and it can be attached to the existing fluorescent lamp fixture main body very easily.
Further, as can be seen from the outer shape of the end part 12, the overall appearance of the LED lighting device 10 of the present invention has a very novel design compared to the conventional example, and also in terms of strength compared to the conventional product. And greatly improved.

FIG. 5 shows a circuit diagram of the LED lighting device of the present invention, where (a) shows a one-block series circuit (DC nonpolarity) and (b) shows a mounting diagram of a DC nonpolar circuit. is there.
In FIG. 5 (a), a diode bridge 32a (four diodes connected in a bridge shape) is connected to a series circuit 31 in which the LED light emitting elements 16 are connected in series. The waveform can be made to be a waveform close to direct current using an electrolytic capacitor), and is configured to be mounted on an existing fluorescent lamp apparatus body from any direction. . By resisting, accidents such as wiring mistakes can be prevented.

In FIG. 5B, a rectifier circuit 32 such as a diode bridge is connected to a series circuit 31 in which the LED light-emitting elements 16 are connected in series, and a resettable fuse 33 is further connected, so that overcurrent and It is possible to prevent destruction of electronic components such as LED light emitting elements that are heated by heating, and to quickly cut off current to prevent combustion caused by heat generation.
After the power is cut off, it is automatically reset by the resettable fuse 33. When the failure disappears, the power is supplied again to the circuit, and it can be used continuously without replacing the fuse.

Since the present invention is configured as described above, it is possible to illuminate the entire room brightly with a wide irradiation angle, and an LED illuminator having no problem of being dazzling even when the user looks directly. LED lighting that can be provided, can talk about the distance between the LED light emitting element and the transparent cover part, is effective for heat dissipation of the frame on which the board is mounted, and is effective in terms of maintaining rigidity and strength It became possible to provide ingredients.

And it can be attached to existing fluorescent lamp fixtures as an alternative to straight tube fluorescent lamps. It can be attached to existing fluorescent fixture fixtures regardless of size and orientation. Is possible.

DESCRIPTION OF SYMBOLS 10 LED illuminator 11 Long cover 12 Base 12 with terminal 12 'Base 12-1 with terminal 12-1 Outer frame part 12-2 Inner frame part 12-1a Arch-shaped part 12-1b Dish-shaped part 12-1c Small hole 12-2a Cutting Notch portion 13 Open edge 13a Translucent portion 14 Hollow frame 15 Circuit board 15a Light source arrangement surface 15b Back surface 16 LED light emitting element 21 Guide groove 22 Mounting groove 23 L-shaped terminal 23 'Pin-shaped terminal 31 Series circuit 32 Rectifier circuit 32a Diode bridge 33 Resettable fuse

Claims (4)

A long cover with a reverse U-shaped cross section made of a translucent material, open at both ends, end parts attached to both ends of the long cover, and attached to the opening edge of the long cover along the longitudinal direction And a hollow frame made of a heat dissipating metal disposed so as to protrude outward from the opening edge of the long cover, and an elongated circuit board mounted on the hollow frame and disposed inside the long cover. An LED illuminator that can be attached to an existing fluorescent lamp fixture body, on which one side of the substrate is used as a light source arrangement surface, and a light source comprising an LED light emitting element is mounted on the surface.
The long cover has an opening edge bent at a predetermined width inwardly, and the opening of the long cover bent in a guide groove arranged to extend along the longitudinal direction of the hollow frame. An LED illuminator characterized in that the long cover is coupled to a hollow frame by fitting the end side with a light- transmitting portion having a predetermined width . The LED lighting device according to claim 1, wherein the long cover is attached to the hollow frame so that an opening end side thereof has a height substantially matching a plate surface of the circuit board. 3. The LED lighting device according to claim 1, wherein the end parts attached to both ends of the long cover are each composed of a base with a terminal fitted into an existing fluorescent lamp apparatus main body from the outer end surface thereof. The circuit board has a rectifier circuit built in a series circuit in which the LED light emitting elements are connected in series, and a resettable fuse is connected to the rectifier circuit, so that the circuit board can be mounted from any direction. 4. The LED illuminator according to claim 1, wherein the LED illuminator is used.

Images