JP5602289B1 - LED lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To be able to easily attach and emit light sufficiently and uniformly from the direction of an end portion of a translucent cover and to irradiate light uniformly in all directions.
An LED lighting device includes an instrument body attached to a surface to be attached and a light emitting unit attached to the instrument body. The light-emitting unit includes a heat radiating plate on which an LED substrate on which a plurality of LED elements are mounted, a power supply circuit for lighting these LED elements, and a translucent cover 21 that covers the heat radiating plate. The light emitting unit further includes an end light transmissive cover 22 in contact with the end of the light transmissive cover 21, and emits light from the end light transmissive cover 22. The thickness of the part which contacts the translucent cover 21 among this edge part translucent cover 22 is thinner than the thickness in a part other than that.
[Selection] Figure 4

Description

  The present invention relates to an LED lighting device that is directly attached to a ceiling surface or the like, and more particularly to improvement of a translucent cover that covers an LED substrate.

2. Description of the Related Art In recent years, due to an increase in environmental awareness, a self-powered light bulb type LED lamp using an LED element excellent in power saving as a light source has been widespread. More recently, lighting devices using LED elements have also been developed and introduced into the market for ceiling-mounted downlights and ceiling-mounted ceiling lights.

As such an illuminating device, for example, a long LED illuminating device having a better appearance, an LED lamp capable of realizing such an LED illuminating device, and a lamp case suitable for housing the LED lamp are being studied. (For example, see Patent Document 1).

  The LED lamp described in Patent Document 1 includes a plurality of LED modules arranged along a first direction, and a tube that accommodates the plurality of LED modules and has an end portion opened in the first direction. And a plurality of end caps that seal both ends of the cylindrical body in the first direction, and the end caps diffuse while transmitting light from the plurality of LED modules. And an emission surface that emits light in a direction orthogonal to the first direction.

However, the LED lamp described in Patent Document 1 mainly illuminates one side of the z direction (the floor surface side when installed on the ceiling surface) orthogonal to the x direction, which is the longitudinal direction of the LED lamp. Therefore, there has been a problem that light is not easily irradiated from both ends of the LED lamp, and light is not sufficiently irradiated from the end of the translucent cover. For this reason, depending on the installation direction of the LED lamp, there is a portion in the room where light is not sufficiently irradiated.

Further, in the LED lamp shown in Patent Document 1, since it is necessary to attach the end cap and fix it with screws after attaching the diffusion cover, it takes time and labor to attach the diffusion cover to the cylinder. There was also.

JP 2012-84504 A

In view of the above problems, the problem to be solved by the present invention can be easily attached and emits light sufficiently and evenly from the direction of the end of the translucent cover. It is providing the LED illuminating device which can irradiate light uniformly toward an azimuth | direction.

  In order to solve the above-described problems, the present invention has improved the structure of the translucent cover covering the LED substrate, and has made it possible to emit uniform light from the end of the translucent cover. Is.

Specifically, the present invention provides, as a first means for solving the above-described problem, an LED illumination device including an instrument main body attached to a surface to be attached and a light emitting unit attached to the instrument main body. The light emitting unit includes a heat sink having an LED substrate on which the LED element is mounted, a power supply circuit for lighting the LED element, and a translucent cover that covers the heat sink. further comprising also an end light-transmitting cover in contact with both ends of the translucent cover, the light reaches to the diffuse reflected by the end translucent cover repeated light reflected by the translucent cover end Light is also emitted from the partial translucent cover, and the thickness of the portion of the end translucent cover that contacts the translucent cover is constant so that the thickness of the material in the end direction of the translucent cover is constant. More than the thickness of the part that does not contact the translucent cover Ku is formed in the said end translucent entire cover the transparent cover including a portion which the end portion light-transmitting cover is in contact with the end portion of the translucent cover, by substantially the same thickness The refractive index of the light emitted in the direction of the end of the translucent cover is made substantially uniform throughout the end direction of the translucent cover and throughout the translucent cover and the entire end translucent cover. Provided is an LED illumination device characterized by uniform irradiation.

  According to the present invention, as a second means for solving the above-described problem, in the first solving means, a portion of the end light-transmitting cover that does not contact the light-transmitting cover is a light-transmitting cover. An LED illumination device having the same thickness is provided.

According to the present invention, as a third means for solving the above-described problem, in the first or second solving means, the translucent cover is attached to the heat sink by the elastic deformation force of the translucent cover. An LED lighting device characterized by being fixed is provided.

The present invention provides, as a fourth means for solving the above-mentioned problems, in any one of the first to third solving means, wherein the translucent cover is integrally formed by extrusion molding. An LED lighting device is provided.

According to the present invention, as described above, the light-emitting unit further includes an end portion translucent cover in contact with the end portion of the translucent cover, and emits light also from the end portion translucent cover. There is an advantage that light can be irradiated uniformly in all directions.

In this case, in particular, according to the present invention, as described above, the thickness of the portion in contact with the translucent cover in the end translucent cover is made thinner than the thickness in the other portions. The thickness of the material in the end direction of the translucent cover is constant, and the refractive index of the light emitted in the end direction can be made almost uniform throughout the end direction and further throughout the cover. There is an advantage that light can be irradiated in all directions.

In addition, according to the present invention, as described above, the translucent cover is fixed to the heat radiating plate by the elastic deformation force of the translucent cover. There is an advantage that it can be stably attached to the heat sink and fixed.

Furthermore, according to the present invention, as described above, since the translucent cover is integrally formed by extrusion molding, it is formed into a complicated shape by an easy operation compared to the case of pressing. There are real benefits that can be made.

It is an external appearance perspective view of the LED lighting apparatus of this invention. It is a disassembled perspective view of the LED lighting apparatus of this invention. It is a longitudinal cross-sectional view of the LED lighting apparatus of this invention. It is a perspective view of the translucent cover used for this invention. It is a longitudinal cross-sectional view of the translucent cover used for this invention. It is an expansion perspective view of the connection part of the LED lighting apparatus of this invention.

  Preferred embodiments of the present invention will be described below in detail with reference to the drawings. This embodiment is an example, and the present invention is not limited to this.

1 to 3 show an LED lighting device 100 according to the present invention. As shown in FIGS. 1 to 3, the LED lighting device 100 includes a fixture main body 1 attached to a ceiling surface 8 as a mounting surface, It comprises a lighting fixture 10 having a light emitting unit 2 mounted on the fixture body 1. As shown in FIGS. 1 to 3, the LED lighting device 100 has an instrument body 1 that opens downward to a suspension bolt 6 that protrudes from a ceiling surface 8 and is secured by a nut 7. Is detachably mounted from the open side. An external power line (F cable) 5 is connected to the instrument main body 1, and the LED illumination device 100 can be used as cornice illumination.

(1. Instrument body)
The instrument main body 1 is made by a punching process, a pressing process, and a bending process using a stainless steel plate, and is painted. As shown in FIG. 1 to FIG. 3, the instrument body 1 is a rectangular parallelepiped shape with one side opened, and a circular power supply hole 13 is opened at the center, and between the power supply hole 13 and both ends of the instrument body 1. Two attachment holes 14 are formed. In addition, a plurality of convex portions are provided on a surface in contact with the ceiling surface 8 on the surface opposite to the open side of the instrument body 1 to absorb the unevenness of the ceiling surface 8.

  As shown in FIGS. 1 to 3, the fixture body 1 is temporarily fixed to the ceiling surface 8 with nuts 7 by inserting attachment holes 14 into the suspension bolts 6 protruding from the ceiling surface 8. Furthermore, the external power line 5 protruding from the ceiling surface 8 is drawn into the inside of the instrument body 1 through the power supply hole 13 of the instrument body 1 and is inserted into the fast connection terminal 11 with a feed terminal of the instrument body 1 to be connected. . Thereafter, by tightening the nut 7 of the suspension bolt 6, the instrument body 1 can be fixed to the ceiling surface 8 in a positioned state. As shown in FIG. 3, two sets of a pair of locking pieces 12 that sandwich a V-shaped spring 30 for mounting the light emitting unit 2 on the opening side are provided on the inner side wall of the instrument body 1.

  In addition, as shown in FIG. 6 in particular, the instrument body 1 is formed with a fitting hole 15 into which engaging portions 43 and 44 of the connecting jig 4 described later are inserted. As shown in FIG. 6, the fitting hole 15 is formed in a pair of rectangular shapes extending in the longitudinal direction of the instrument body 1 on the upper surface of the instrument body 1. Moreover, the fitting hole 15 is provided in the both ends in the longitudinal direction of the fixture main body 1 located in the vicinity of the end surface or side surface of another adjacent lighting fixture 10, as shown in FIG. The plurality of instrument main bodies 1 can be positioned and connected to each other at appropriate positions by inserting the connecting jig 4 into the fitting holes 15 of the plurality of instrument main bodies 1 to be connected.

(2. Light emitting unit)
As shown in FIGS. 2 to 3, the light emitting unit 2 includes a heat radiating plate 23 provided with an LED substrate 24 on which a plurality of LED elements 26 are mounted, a power supply circuit 28 for lighting the LED elements 26, and the heat dissipation. A translucent cover 21 that covers the plate 23 is provided. More specifically, in the light emitting unit 2, as shown in FIGS. 2 and 3, the back surface of the substantially rectangular LED substrate 24 on which the LED element 26 as the light source is mounted is disposed below the heat sink 23. Then, the power supply circuit 28 for the LED element 26 is installed above the heat sink 23. A V-shaped spring 30 and a V-shape that are integrated as the light-emitting unit 2 by the translucent cover 21 disposed so as to cover the LED substrate 24 and the heat dissipation plate 23 and are attached to the fixture body 1 on the upper surface of the translucent cover 21. A spring fixing component 31 is provided.

  The LED substrate 24 is made of a glass composite substrate (CEM-3) having a copper foil affixed on one side, and the LED element 26 and electronic components are mounted on one side. The heat sink 23 is made by integral molding by extrusion using aluminum. The LED lighting device 100 is configured by connecting the power supply line to the power supply circuit 28 and the output of the power supply circuit 28 to the LED substrate 24 from the fast connection terminal 11 with the feed terminal of the instrument body 1.

(2-1 LED board)
As shown in FIG. 2, the LED substrate 24 is formed by combining a plurality of LED substrate single units 24a and 24b. More specifically, as shown in FIG. 2, the LED board 24 is composed of a first LED board single body 24a and a second LED board single body 24b each having a rectangular shape, and the first LED board single body. 24a and the 2nd LED board single-piece | unit 24b are arrange | positioned so that both end surfaces may be opposed so that it may arrange | position continuously in a longitudinal direction.

In this case, the first LED substrate single unit 24a and the second LED substrate single unit 24b have the same shape as shown in FIG. 24 is constituted. In this way, by using a single substrate having the same shape, it is sufficient to prepare only a single shape LED substrate and simply combine them, thereby reducing the manufacturing cost of the LED substrates 24a and 24b. be able to.

Further, as shown in FIG. 2, the LED substrate single parts 24a and 24b are formed with LED substrate recesses 24c and 24d formed by cutting out part of the end surfaces. More specifically, as shown in FIG. 2, concave portions 24c and 24d of the LED board formed in a substantially semicircular shape are provided in the central portion of one end face of the LED board single bodies 24a and 24b.

  As shown in FIG. 2, the plurality of LED substrate single units 24 a and 24 b are adjacent to each other by arranging the concave portions 24 c and 24 d of the LED substrates facing each other between the LED substrate single units 24 a and 24 b. Between the matching LED substrate single unit 24a and 24b, a wiring through hole including the recesses 24c and 24d of these LED substrates is formed. An electric wire for supplying DC power from the power supply circuit 28 to the LED substrate 24 is wired through the wiring through hole. In this way, even when the wiring through holes are formed by the recesses 24c and 24d between the plurality of LED substrate single units 24a and 24b, the LED substrate single units 24a and 24b having the same shape are rotated 180 degrees to be symmetric. It is possible to respond by simply placing the

In addition, LED board terminals for fixing the electric wires from the power supply circuit 28 to the LED board single bodies 24a and 24b are provided on both sides of the recesses 24c and 24d of the LED boards of the LED board single bodies 24a and 24b.

The intervals between the plurality of LED elements 26 mounted on the LED substrate single units 24a and 24b and the intervals between the LED elements 26 of the adjacent LED substrate single units 24a and 24b are formed to be substantially equal. For this reason, as shown in FIG. 2, even if the plurality of LED substrate single units 24a and 24b are continuously arranged, the LED elements 26 are evenly arranged between all the LED substrate single units 24a and 24b, and the LED substrate single unit 24a. , 24b can be emitted continuously so as not to be conscious of the separation between them, and the light can be irradiated uniformly.

In this case, the LED board single units 24a and 24b are arranged such that the interval b between the plurality of LED elements 26 in each LED board single unit 24a and 24b is from the end surface facing the other LED board single units 24a and 24b to the closest LED element 26. By forming larger than the space | interval a, the space | interval between the LED elements 26 of LED board single-piece | unit 24a, 24b which adjoins can be formed substantially equal.

Specifically, the LED elements 26 mounted on the LED substrate 24 are arranged in four rows in the longitudinal direction of the LED substrate 24 as shown in FIG. 3 in the illustrated embodiment. The distance between a plurality of LED elements 26 in each LED board unit 24a, 24b is determined from the distance a from the end surface facing each other LED board unit 24a, 24b to the LED element 26 in the nearest row. b is set larger (a <b).

Thus, in the case of a <b, the distance a from the end surface facing the other LED substrate single unit 24a, 24b to the closest LED element 26 is set between the plurality of LED elements 26 in each LED substrate single unit 24a, 24b. It can be said that it is desirable that the distance between the LED elements 26 in each column is set to be approximately equal to each other by setting the distance b to 1/2. Thereby, even if it arranges several LED board single-piece | units 24a and 24b continuously, the LED element 26 is arrange | positioned equally among all the LED board single-piece | units 24a and 24b, and it is conscious of the division | segmentation between LED board single-piece | units 24a and 24b. The light-transmitting cover 21 emits light continuously to such an extent that the light-transmitting cover 21 has a uniform brightness. Furthermore, even when a plurality of LED lighting devices 100 of the present invention are connected and used, between the LED lighting devices 100. The same effect can be obtained. When a slight gap is formed between the plurality of LED substrate single units 24a and 24b, the arrangement of the LED elements 26 is set in consideration of this.

In addition, light extraction efficiency can be improved by bonding a highly reflective sheet | seat to the mounting surface side of the LED element 26 among the LED boards 24, or apply | coating highly reflective resin. Further, as the LED element 26 mounted on the LED substrate 24, various known LED elements, organic EL elements, and the like can be used. In the illustrated embodiment, a high-luminance LED element that emits white light for illumination is used.

(2-2-2 LED board wiring)
A plurality of LED elements 26 are mounted on the LED substrate 24, and wiring for causing each LED element 26 to emit light is provided. In this case, the area of the board wiring connected to the two terminals of the LED element 26 mounted on the LED board 24 is the first board wiring connected to the first terminal and the second terminal connected to the second terminal. It sets so that it may differ with board wiring of 2.

This is because it is necessary to dissipate heat to generate heat when the LED element 26 emits light. Therefore, it is necessary to increase the wiring area of the substrate wiring and to dissipate as much as possible. Therefore, the amount of heat released from the terminal varies depending on the terminal wiring area of the LED element 26. Therefore, the LED element 26 is optimized by changing the terminal wiring area according to the specifications of the LED element 26 to be mounted. This is to improve the efficiency. Thereby, by securing an area of the substrate wiring suitable for each terminal, a heat radiation amount corresponding to the performance of each LED element 26 is ensured, and a decrease in light emission efficiency is suppressed, so that a plurality of LED elements 26 are connected. In addition, uniform irradiation of light can be ensured between the LED substrate single bodies 24a and 24b. Therefore, the area of the substrate wiring is set according to the performance for each LED element 26 to be mounted.

(2-3 Heat sink)
As shown in FIGS. 3 to 5, the heat sink 23 is integrally formed by extrusion molding of aluminum. For this reason, compared with the case where press processing etc. are carried out, it can shape | mold into a complicated shape by an easy operation | work.

In the present invention, as shown in FIG. 3 in particular, the power supply circuit 28 is fixed above the heat radiating plate 23 and the LED substrate 24 is fixed below, so that heat can be radiated. In this case, as shown in FIG. 3, the power supply circuit 28 is disposed on the heat sink 23 with a space provided between the power supply circuit 28 and the heat sink 23. More specifically, as shown in FIGS. 3 to 5, the power supply circuit is spaced above the substrate portion 23 a that fixes the LED substrate 24 in the central portion in the short direction (width direction) of the heat radiating plate 23. A power supply base 23b on which 28 is mounted is provided. As a result, a space is provided between the lower side of the power supply base 23b and the substrate portion 23a in order to obtain a sufficient heat dissipation effect. Due to the structure of the heat sink 23, the power circuit 28 and the heat sink 23 can also dissipate heat in this space to increase the heat dissipation efficiency, and the LED board 24 and the power circuit 28 mounted on the heat sink 23 are sufficient. Thus, it is possible to prevent a decrease in luminous efficiency due to heat accumulation between the power supply circuit 28 and the heat radiating plate 23.

Further, as shown in FIGS. 3 and 5, the LED substrate 24 is fixed to the lower portion of the heat sink 23 with screws 29 using the structure of the heat sink 23 for providing the space. A groove 23d for inserting a screw 29 into the heat radiating plate 23 is provided in accordance with the fixing hole. Since the groove 23d is integrally formed of aluminum, the screw 29 is press-fitted into the heat radiating plate 23 by using a screw 29 or the like made of stainless steel, without having to provide a screw groove in advance or newly. The LED substrate 24 is fixed to the heat sink 23 while forming a groove. As a result, a screw groove is simultaneously formed by simply press-fitting the screw 29 into the groove portion 23d, so that the LED board can be formed without forming a new screw groove in the heat radiating plate 23 in advance or at the time of installation. 24 can be fixed to the heat sink 23, and the manufacturing cost and labor can be reduced with a simple structure.

Further, as shown in FIG. 3, a cover insertion portion 23c into which an end portion of the translucent cover 21 is inserted is provided on the upper portion of the heat sink 23, and the translucent cover is inserted through the cover insertion portion 23c. By attaching 21 to the heat radiating plate 23, the light radiating plate 23 is covered with the translucent cover 21 to constitute the light emitting unit 2.

(2.-4 Translucent cover)
As shown in FIGS. 3 to 5, the translucent cover 21 is made of polycarbonate by extrusion molding into a substantially square shape in cross section. 21c. In this case, since it is integrally formed by extrusion, it can be formed into a complicated shape by an easy operation compared to the case of press working or the like.

As shown in FIG. 3, the translucent cover 21 is inserted into the cover main body 1 by inserting the heat sink insertion portion 21 b into the cover insertion portion 23 c of the heat sink 23 having the LED substrate 24 disposed below. Installed. In this case, the translucent cover 21 is fixed to the heat sink 23 by its elastic deformation force. That is, the translucent cover 21 is formed so as to be slightly bent inward in a free state, and is inserted into the cover insertion portion 23c while expanding the heat sink insertion portion 21b, thereby restoring force due to elastic deformation, The heat sink 23 can be inserted. For this reason, simply by inserting the translucent cover 21 into the heat sink 23, it can be easily and stably attached to the heat sink 23 and fixed.

Moreover, the light emitting unit 2 in the present invention further includes an end portion translucent cover 22 in contact with the end portion of the translucent cover 21, as shown in FIGS. 2 and 4, and both ends of the translucent cover 21. As shown in FIG. 2, by covering the portion with the end portion translucent cover 22, the light reflected by the translucent cover 21 is diffusely reflected, and this is repeated until the end portion translucent cover 22 is reached. Light reaches and exits from the end transparent cover 22 . Accordingly, the entire surfaces of the translucent cover 21 and the end translucent cover 22 can be illuminated, and light can be uniformly irradiated as a light source.

As shown in FIG. 4, the end portion translucent cover 22 is formed such that the thickness of the portion in contact with the translucent cover 21 is thinner than the thickness of the other portions. For this reason, the thickness of the material in the end direction of the translucent cover 21 is constant, and the refractive index of light emitted in the end direction can be made substantially uniform throughout the end direction and further throughout the cover. Uniform light can be irradiated in all directions.

  Specifically, in the illustrated embodiment, the translucent cover 21 is integrally formed with a thickness of 1.5 mm by extrusion molding. On the other hand, the end portion light-transmitting cover 22 has an outer edge portion 22b that contacts the light-transmitting cover 21 when assembled, a thickness of 0.5 mm, and a central portion 22a that does not contact the light-transmitting cover 21 has a light-transmitting cover. The thickness is 1.5 mm, the same as 21. In addition, the thickness of the guide portion 22c at the boundary between the outer edge portion 22b and the central portion 22a is set to 2.0 mm so as to facilitate assembly when the end portion light transmissive cover 22 is incorporated into the light transmissive cover 21. The translucent cover 21 and the end translucent cover 22 are fixed to each other with an adhesive or the like that does not affect the diffusibility. Thereby, it is possible to uniformly irradiate the light from the LED elements by setting the translucent cover 21 and the end translucent cover 22 to have almost the same thickness.

(3. Connecting jig)
In the case where a plurality of lighting devices 100 of the present invention are connected and used, as shown in FIG. 6, a connecting jig that is attached across the plurality of lighting devices 100 and connects the plurality of lighting devices 10 to each other. Tool 4 can be used.

  As shown in FIGS. 1 and 6, the connecting jig 4 includes jig bodies 41 and 42 that straddle a plurality of instrument bodies 1, and latches that extend from the jig bodies 41 and 42 toward the instrument body 1 side. As shown in FIG. 6, the engaging portions 43 and 44 are inserted into the fitting holes 15 provided in the fixture body 1 to connect the plurality of lighting fixtures 10 to each other. Specifically, the connecting jig 4 can be formed, for example, by punching, pressing, bending, etc., a stainless steel plate, and as shown in FIGS. Locking portions 43 and 44 are formed at positions and shapes corresponding to the holes 15.

As this connection jig | tool 4, several embodiment can be considered with the form of the lighting fixture 10 connected mutually. Specifically, as a first embodiment, as shown in FIGS. 6A to 6C, a series connection pattern in which a plurality of instrument bodies 1 are arranged with their end faces in the longitudinal direction of the instrument bodies 1 facing each other. Can be mentioned. In the series connection pattern which is the first form, the connecting jig 4 has two adjacent instrument bodies 1 facing each other in the longitudinal direction as shown in FIGS. 6 (A) to (C). Corresponding to the position and shape of each fitting hole 15 in the case of the arrangement, the jig body 41 formed in a rectangular shape extends in a substantially U shape from both ends near the short side on the long side. Thus, the four locking portions 43 are formed.

Moreover, as a 2nd form, as shown in FIG.6 (D), the corner connection pattern which arrange | positions the end surface in the longitudinal direction of one instrument main body 1 and the side surface in the longitudinal direction of the other instrument main body 1 facing each other. Can be mentioned. In the corner connection pattern which is the second form, the connecting jig 4 is configured so that the two adjacent instrument bodies 1 are connected to the end face in the longitudinal direction of one instrument body 1 and the other as shown in FIG. One end on the long side of the jig body 42 formed in a rectangular shape corresponding to the position and shape of each fitting hole 15 when the instrument body 1 is disposed so as to face the side surface in the longitudinal direction. Are formed in a substantially U-shape and two locking portions 43 are formed, and one locking portion 44 is formed by extending the short side of the other end on the long side in an L-shape.

In the LED lighting device 100 of the present invention, it is possible to configure an illumination system by the LED lighting device 100 by combining these two forms of serial connection and corner connection shown in FIG. . In this case, as shown in FIG. 6, the fitting hole 15 formed in the fixture body 1 of the lighting fixture 10 corresponds to either connection pattern in one form by simply changing the arrangement of the fixture body 1. can do.

(4. Consolidated)
In order to connect a plurality of lighting devices 100 using these connecting jigs 4, in the case of the series connection pattern which is the first form, as shown in FIGS. The fixture main body 1 to be connected to the ceiling surface 8 or the like is arranged with the connection surface on the upper side, and the engaging portions 43 of the connection jig 4 are connected to all the fitting holes 15 provided at both ends of the fixture main body 1 to be connected. To be integrated.

On the other hand, in the case of the corner connection pattern which is the second form, as shown in FIG. 6 (D), the appliance main body 1 to be connected is arranged side by side with the connection surface to the ceiling surface 8 or the like, Integration is performed by inserting the locking portion 43 and the locking portion 44 of the connecting jig 4 into the fitting holes 15 provided at both ends from above. In this case, as shown in FIG. 6D, the locking portion 44 formed on the short side is inserted into the rear fitting hole 15 at a position far from the other instrument body 1.

In order to irradiate light uniformly as the LED lighting device 100 connected, it is required that the intervals between the integrated instrument bodies 1 be equal. In addition, since the expansion and contraction due to the temperature related to the light emission of the instrument main body 1 and the translucent cover 21 is greatly different, positioning accuracy in units of 1 mm is required in consideration of the expansion and contraction due to the temperature. Therefore, it is necessary to make the space | interval of the instrument main body 1 to connect be 1 mm space | interval, and positioning of the instrument main body 1 to connect becomes difficult. In this case, by using the connecting jig 4 used in the present invention, it is possible to accurately position the interval of the instrument body 1 to be connected. Corresponding to the arrangement of the LED lighting device 100, it is possible to cope with various arrangements by combining the first form and the second form.

(5. Slide)
Note that the LED lighting device 100 can be added with a function that allows sliding (moving) with respect to the ceiling surface 8. The positional relationship with the suspension bolt 6 can be adjusted by making the two attachment holes 14 provided in the instrument main body 1 into long holes. Thereby, when changing the partition of a room, for example, it becomes possible to move the LED lighting apparatus 100 to a position that does not interfere with the partition. Furthermore, it can be easily returned to the original room after partitioning is completed, and can be used in various ways.

  Moreover, it is also possible to fix the mounting plate provided with the suspension bolt 6 to the ceiling surface 8 and to make the same slide structure using the suspension bolt 6 of the mounting plate. At that time, if the longitudinal dimension of the mounting plate is shortened, the mounting plate can be prevented from appearing out of the range of the LED lighting device 100 when it is slid.

(6. Installation on the mounting surface such as the ceiling surface)
The LED lighting device 100 of the present invention can be attached to a ceiling surface 8 or a wall as an attachment surface as follows. That is, first, suspension bolts 6 are provided from the ceiling surface 8 according to the arrangement of the LED lighting device 100, and a hole having a diameter of 15 mm is formed in the ceiling surface 8 in accordance with the power supply hole 13 of the fixture body 1. The external power supply line 5 is pulled out from the hole.

Next, the fixture body 1 of the LED lighting device 100 to be installed is connected using the connecting jig 4 as described above. The appliance body 1 is temporarily fixed by positioning the attachment hole 14 of the connected appliance body 1 on the ceiling surface 8 in accordance with the suspension bolt 6 from the ceiling surface 8 and stopping the suspension bolt 6 with a nut 7. .

Further, the external power supply line 5 is pulled out from the power supply hole 13 of the instrument main body 1, and the two core wires of the external power supply line 5 are inserted into the fast connection terminal portion 11 with the feed terminal. Wiring is performed from the quick connection terminal 11 with the feed terminal to the quick connection terminal 11 with the feed terminal of the adjacent instrument body 1 using the feed hole 16 at the end of the instrument body 1. Thereby, it becomes possible to reduce the wiring of the external power supply line 5 drawn out from the ceiling surface 8. The instrument body 1 that has been temporarily fixed is fixed to the ceiling surface 8 or the like by tightening the nut 7 of the suspension bolt 6. Finally, wiring is performed from the fixture main body 1 to the light emitting unit 2 and the light emitting unit 2 is fixed by the V-shaped spring 30 to complete the illumination system by the LED lighting device 100.

(7. Others)
As mentioned above, although embodiment of this invention was described, this invention is not restricted to these embodiment, Even if there is a design change of the range which does not deviate from the summary of this invention, it is included in this invention. That is, various changes and modifications that can be naturally made by those skilled in the art are also included in the present invention.

  The present invention can be widely applied as an LED lighting device installed over a relatively wide range such as commercial facilities such as business operators and stores.

1: Instrument main body 11: Fast connection terminal with feed terminal 12: Locking piece 13: Hole for power supply 14: Mounting hole 15: Fitting hole 16: Feed hole 2: Light emitting unit 21: Translucent cover 21a: Plane portion 21b : Heat sink insertion part 21c: heat sink receiving part 22: end transparent cover 22a: central part 22b: outer edge part 22c: guide part 23: heat sink 23a: substrate part 23b: power supply base 23c: cover insertion part 23d: Groove 24: LED board 24a: first LED board single piece 24b: second LED board single piece 24c: first LED board recess 24d: second LED board recess 26: LED element 28: power supply circuit 29: screw 30: V-shaped spring 31: V-shaped spring fixing part 4: Connecting jig 41: Jig body 42: Jig body 43: Locking part 44: Locking part 5: External power supply line 6: Suspension bolt 7: Nut 8 : Ceiling surface 0 lighting fixtures 100: LED lighting device

Claims (4)

An LED lighting device comprising an appliance body attached to a surface to be attached, and a light emitting unit attached to the appliance body,
The light emitting unit has a heat sink that has an LED substrate on which the LED element is mounted, a power supply circuit that lights the LED element, and a translucent cover that covers the heat sink.
The light emitting unit, said further has also an end light-transmitting cover in contact with both ends of the translucent cover, said end translucent is light repeatedly diffuse reflection reflected by the translucent cover Light reaches the cover and emits light also from the end part translucent cover, and among the end part translucent cover, the thickness of the material in the end part direction of the translucent cover is constant, The thickness of the portion in contact with the translucent cover is formed thinner than the thickness in the portion not in contact with the translucent cover, and the end portion translucent cover is in contact with the end portion of the translucent cover. By making substantially the same thickness over the entire surface of the translucent cover and the end portion translucent cover, the refractive index of light emitted in the direction of the end portion of the translucent cover is set to the translucency. The entire end direction of the cover and the translucent cover and the end translucent LED lighting apparatus characterized by uniformly irradiating the light from the LED element as a substantially uniform throughout the cover. 2. The LED lighting device according to claim 1, wherein a portion of the end light-transmitting cover that is not in contact with the light-transmitting cover has the same thickness as the light-transmitting cover. LED lighting device. 3. The LED lighting device according to claim 1, wherein the translucent cover is fixed to the heat radiating plate by an elastic deformation force of the translucent cover. LED lighting device. 4. The LED lighting device according to claim 1, wherein the translucent cover is integrally formed by extrusion molding. 5.