JPWO2011087017A1 - LED lighting - Google Patents

Abstract

The glare is reduced without causing a decrease in the luminous flux, and the shape of the light of the LED body, which is a series of dots, is made to have a good appearance so as to be as straight as possible. In an LED illuminating lamp provided with a large number of LED bodies each emitting light when energized in an illuminating lamp body in which an LED power supply board is built in, a large number of LED bodies along the longitudinal direction on the surface of an elongated printed board Is mounted, and a transparent cover body that covers these many LED bodies is provided, and this cover body is formed with an irregular reflection surface for irregularly reflecting the irradiation light from the LED bodies. is there.

Description

  The present invention relates to an LED illuminating lamp including a plurality of LED bodies that emit light when energized, that is, light emitting diodes.

  A conventional general illumination lamp is a fluorescent lamp, a cylindrical glass tube, a coiled electrode filament coated with a thermionic radioactive material and provided inside both ends of the glass tube, and both ends of the glass tube. A pair of fixed bases and two sets of electrode pins fixed to the outer surfaces of the bases are provided. Further, mercury or argon gas is sealed in the glass tube, and a fluorescent paint is applied to the inner wall of the glass tube.

  In addition, for example, there is a type called a so-called slim line lamp which is mainly used in a relatively narrow space such as a show window or a display shelf and is turned on instantaneously. This slim line type lamp has a structure in which the electrodes are instantaneously discharged by a high voltage without preheating the electrodes while being in the cold cathode state.

  In recent years, illumination lamps using LED bodies have been proposed or are commercially available. There are various forms of this, but in general, a large number of LED bodies are mounted on the top surface, and the power supply for the lighting circuit and various electronic components are mounted on the back surface, so that the printed circuit board is light transmissive and shape retaining. It is housed and fixed in a glass or resin tube provided with (see Patent Documents 1 and 2).

  By the way, in the conventional fluorescent lamp or slim line type lamp, since there are caps at both ends of the glass tube, this portion becomes dark, the illumination effect is inferior, the life is short, and as a result, the cost performance is poor. Furthermore, it is inferior to LED lighting in terms of brightness, and a desirable lighting effect cannot be expected.

  In addition, since a conventional illuminating lamp using an LED body has a transparent cover body, each of the LED bodies is clearly recognized as a point and recognized as a sequence of points. In addition, when the light from the LED body is directly in the eyes, it feels very dazzling. Furthermore, in order to prevent this glare, there is also a method of applying a milky white paint to the cover body. However, in this case, the line of glares and dots cannot be recognized, but the luminous flux (lm) decreases. The flying distance of light is also shortened. In addition, when the printed circuit board on which the LED body is mounted is fixed to the upper wall of the illuminating lamp body and this illuminating lamp body is also fixedly set on a display shelf or the like, the light irradiation direction is always limited to one direction. The In other words, because the light is applied only in one direction, once it is attached to a show window, etc., it is impossible to change the irradiation direction except to remove it once and change the emission direction to reattach it. is there. As a result, various lighting effects cannot be expected.

  Therefore, the problem of the present invention is, first of all, to reduce glare without causing a decrease in luminous flux, and to make the light column of the LED body in which dots are continuous as a single straight line as possible. To make it look good.

  Moreover, the 2nd subject is enabling it to change freely the irradiation direction of the irradiation light which a LED body emits irrespective of the attachment attitude | position of a main body.

  In addition to the first and second problems, the third problem is to extend the life of the LED lighting.

  In order to solve the first technical problem, an LED illuminating lamp according to the present invention is, as described in claim 1, by energizing an illuminating lamp body including an electronic component including an LED power supply board. In an LED illuminating lamp having a large number of LED bodies each emitting light, a large number of LED bodies are mounted along the longitudinal direction on the surface of an elongated printed circuit board, and a transparent covering the large number of LED bodies The cover body is provided with a diffusely reflecting surface for irregularly reflecting the irradiation light from the LED body.

In the LED illuminating lamp having the above configuration, the LED body can emit light with relatively high luminance at a low current, so that it is possible to extend the life and reduce the power consumption.
In particular, high-luminance light emitted from the LED body is emitted outward through the transparent cover body, but is emitted to the outside while being irregularly reflected on the inner surface when passing through the cover body. Further, the LED body can be mounted over almost the entire length of the illuminating lamp without requiring a base as in the conventional slim line type lamp (cold cathode type fluorescent lamp).

  Accordingly, the LED illumination lamp according to claim 1 of the present invention does not require a base unlike conventional fluorescent lamps and slim line type lamps (cold cathode type fluorescent lamps), and therefore dark portions are formed at both ends of the illumination lamp. Absent. As a result, the lighting effect is improved and the lifetime is extended, resulting in improved cost performance. Furthermore, unlike conventional LED lighting, the light emitted from the cover body is diffusely reflected on the inner surface of the cover body and then emitted to the outside of the cover body, and since the bar body is transparent, the light beam (1 m) is emitted. It is less likely to reduce, and the glare can be suppressed as much as possible. Moreover, even when the power is turned off, external light such as sunlight or light from other light sources is diffusely reflected by the cover body, the cover surface becomes silver, and the internal LED body is also difficult to see. Can keep the aesthetic.

  In the above configuration, according to the present invention, as described in claim 2, the LED illumination lamp includes a plurality of LED bodies each emitting light when energized in an illumination lamp body including an electronic component including an LED power supply board. A plurality of LED bodies are mounted on the surface of the elongated printed circuit board along the longitudinal direction thereof, and a transparent cover body that covers these multiple LED bodies is provided, and the printed circuit board and the cover body are Employs a structure in which the supporting members provided at both ends in the longitudinal direction of the illuminating lamp main body can swing around the axis along the longitudinal direction of the printed circuit board and can be held at any swing position. it can.

  In the LED illumination lamp having the configuration according to claim 2, since the printed circuit board on which the LED body is mounted is swingably held with respect to the illumination lamp body, the illumination lamp body is fixedly set on a display shelf or the like. However, the orientation of the printed circuit board, that is, the orientation of the LED body can be freely changed even after being set, and the position after the change can be firmly maintained.

  Therefore, in the LED illumination lamp according to claim 2 of the present invention, the printed board on which the LED body is mounted is not fixed to the upper wall of the illumination lamp body as in the conventional LED illumination lamp, but the direction can be changed freely. The emission direction of the LED body can be changed. As a result, the illuminating lamp main body is fixedly set on a display shelf or the like, but the light irradiation direction can be freely changed, and various lighting effects can be expected. In addition, the printed circuit board is separated from the upper wall of the illuminating lamp as compared with the case where the printed circuit board is disposed directly on the upper wall of the illuminating lamp. It is less likely to receive heat directly from the product and contributes to longer life.

  According to a third aspect of the present invention, there is provided an LED illumination lamp comprising a plurality of LED bodies each emitting light when energized in an illumination lamp body including an electronic component including an LED power supply board. In the LED illuminating lamp, supporting members provided at both ends in the longitudinal direction of the illuminating lamp main body, an elongated printed board on which a plurality of LED bodies are mounted on the surface along the longitudinal direction, and an inner surface of the LED body A transparent cover body that is formed on an irregular reflection surface for irregularly reflecting the irradiation light from the LED, covers the multiple LED bodies, the printed circuit board, and a holding body that supports and holds at least both ends of the cover body. The holding body is swingable about an axis along the longitudinal direction of the printed circuit board with respect to the support member, and can be held so as to be held at an arbitrary swinging position. You can adopt a configuration to be connected to one another via the lifting structure.

  According to this configuration, the parts of the illuminating lamp used in the conventional slim line type lamp, that is, a long and rectangular cylindrical main body, end caps fitted and attached to both ends, and the basic end caps, etc. Without making significant changes to the outer shell structure, these can be used successfully. As a result, there is an advantage that it can be manufactured relatively inexpensively and easily. Furthermore, it goes without saying that the effects of the inventions according to claims 1 and 2 are exhibited.

  In the above configuration, the LED illumination lamp according to the present invention includes a plurality of projections and depressions provided on the inner surface of the cover body in parallel along the direction orthogonal to the longitudinal direction of the printed circuit board. The cross-sectional shape of the concave groove in the direction along the longitudinal direction of the printed circuit board is preferably a V-shape of European letters, and the angle of the hypotenuse is preferably in the range of 30 to 50 degrees.

  If the angle is steeper than 30 degrees or less than 50 degrees, the degree of irregular reflection of the emitted light is very small, or the light is emitted straight from the cover body without being largely refracted. However, when the angle is in the range of 30 to 50 degrees, the light emitted from the LED body can be diffusely reflected by the concave grooves. As a result, unlike conventional mere transparent cover bodies, the glare can be greatly reduced, and the light of each LED body looks like a single straight line, which makes it very attractive. An ideal lighting effect can be obtained.

  Further, in the LED illumination lamp according to the present invention, as described in claim 5, the holding body is long along the longitudinal direction of the printed circuit board and has a concave shape in which the upper part and both ends in the longitudinal direction are open. The holding body is connected to both ends of the holding body in the longitudinal direction, and the supporting member is swingable about an axis along the longitudinal direction of the printed circuit board, and is held at an arbitrary swinging position. 3 ribs are provided on the inner surface of the left and right side walls that extend from the bottom wall of the holder body, with a predetermined vertical spacing along the longitudinal direction. The upper and lower edges of the cover body are provided in the upper and lower stages, the left and right edges of the cover body are in the upper stage, the left and right edges of the printed circuit board are in the middle, and the lower end of the rotating member is in the lower stage. A connecting piece that extends integrally from the edge can be inserted and removed. It is desired to be configured.

  Mounting of the printed circuit board and cover body to the holding body and connection of the holding body main body and the rotating member are performed by inserting them into a locking groove group provided on the holding body main body, so that processing and assembly work are simple and inexpensive. It is because it can provide. At the same time, the holding body itself holds the printed circuit board and the cover body, and it also serves as a connector for connecting the printed circuit board and the cover body to the support member of the illuminating lamp body. It is because it can provide. Further, since the entire lower surface of the printed circuit board is covered, it is advantageous in terms of safety and protection of the printed circuit board, and the strength can be maintained.

  Further, as described in claim 6, the LED illumination lamp according to the present invention causes the printed circuit board to swing between the lower surface of the printed circuit board or the holder body of the holder and the upper wall of the illumination lamp body. It is desirable to be configured to have an acceptable gap.

  By forming a gap between the upper wall of the illuminating lamp main body and the lower surface of the printed board, an air flow can be formed under the printed board. As a result, there is little possibility that the heat generated by the LED power supply board housed in the illuminating lamp body is directly applied to the printed circuit board, and damage to the LED body on the printed circuit board by the heat is minimized. This is because it can be reduced and the life can be extended.

  Further, in the LED illumination lamp according to the present invention, as described in claim 7, the rotating member is a connecting piece that can be inserted into and removed from the lowermost locking groove of the holding body, and the supporting member side end of the connecting piece. A disc body that is integrally raised from above and rotatably mounted on the support member, a locking projection that protrudes toward the support member at a predetermined interval in the circumferential direction of the disc body, and a disc body A through hole provided in the center of the lamp, and the through hole is configured to pass a lead wire for connecting a conductive pattern for power supply on the printed circuit board to the LED power supply board in the main body of the illuminating lamp. Is desirable.

  The lead wire that connects the printed circuit board and the LED power supply board in the illuminating lamp body passes through the through hole of the disk body that controls the oscillation of the printed circuit board and the LED body, so that the structure is simple and the lead wire This is because the amount that is swung from side to side can be reduced as much as possible, and disconnection and wear of the connection portion with the printed circuit board can be reduced as much as possible.

  Further, in the LED illumination lamp according to the present invention, as described in claim 8, the holding structure is configured by the rotating member and the supporting member, and the disk member of the rotating member is fitted to the supporting member. An opening is provided, and the locking projection of the rotating member is detachably locked to the inner edge of the opening, and the frictional force between the locking projection and the inner edge of the opening is used to It is preferable that the holding body is swingable about an axis along the longitudinal direction of the printed circuit board with respect to the support member and is held so as to be able to hold the position at an arbitrary swinging position.

  By performing the swinging of the printed circuit board and the LED body and holding the position after the swinging by the frictional force between the locking projection provided on the disk body and the edge of the opening provided on the support member, the structure can be simplified. This is because it can be provided at a low price.

It is an end view of the effect | action which showed the Example of the LED illumination lamp which concerns on this invention, and represented the state which a LED body rock | fluctuates. It is a partially cutaway external view showing a use state. It is a whole disassembled perspective view of an LED illumination lamp. The end cap on the side where the input / output terminal block is incorporated is shown, (A) is a sectional view, (B) is a front view, and (C) is a rear view. The end cap on the side where the terminal block for connection is incorporated is shown, (A) is a sectional view, (B) is a front view, and (C) is a rear view. A cover body is shown, (A) is sectional drawing, (B) is AA sectional drawing in (A) including sectional drawing which took out one part and expanded and displayed it. It is a partially cutaway perspective view showing a modification of the irregular reflection surface. It is sectional drawing which shows another structure of an irregular reflection surface. It is sectional drawing of a holding body main body. The rotation member is shown, (A) is a front view, (B) is a rear view, and (C) is a side view. It is an end view which shows the state which incorporated each component of LED lighting. Another example of use is shown, (A) is a cross-sectional view of a connector, (B) is a partially cutaway external view of the use state. It is a partially cutaway perspective view showing a modification of the cover body.

Hereinafter, an embodiment when the LED illumination lamp according to the present invention is applied to a multiple lamp connection type will be described based on the description of FIGS.
When using this type of LED illumination lamp, the irradiation direction is often downward, but in the present invention, for the sake of convenience, it will be described in the state illustrated upward.

  As shown in FIGS. 2 and 3, an LED lamp 1 of the present invention is basically an elongated body made of aluminum die-casting, and is an illuminating lamp main body 3 formed of a cylindrical body having a rectangular cross section having walls 2 on four sides. An end cap 5 made of a synthetic resin that closes the openings 4 at both ends in the longitudinal direction of the illuminating lamp body 3, a support member 6 raised integrally from the end cap 5, and a large number of LED bodies 7 along the longitudinal direction. A printed circuit board 8 mounted in a line, a translucent, specifically transparent, shape-retaining synthetic resin cover 9 covering the upper side of the LED bodies 7 aligned in a line, and the printed circuit board 8 And a synthetic resin holding body 10 that holds the cover body 9 and connects it to the support member 6, an LED power supply board 11 housed in the illuminating lamp body 3, and one end cap 5 </ b> A. Built-in AC power input / output terminal 12, incorporated in the other end cap 5A, it consists of connecting the output terminal blocks 14. for connecting the other LED lamp 13.

  First, as shown in FIG. 3, the illuminating lamp main body 3 has an upper wall 2A having a loose radius with the center in the horizontal width direction recessed slightly downward. Both ends in the longitudinal direction are opened to form an opening 4. In the figure, the total length from one opening to the other is 500 mm, the left-right width is 20 mm, and the height is 20 mm. Inside, a substrate insulating cylinder 15 made of polycarbonate and having a size slightly smaller than that of the illuminating lamp main body 3 is accommodated so as to be freely inserted and removed. The substrate insulating cylinder 15 has a rectangular cross section and is formed in a short cylindrical body, and the LED power supply substrate 11 is inserted and mounted therein. In FIG. 3, reference numeral 15A denotes a closing plate for closing the openings at both ends of the substrate insulating cylinder 15. An opening for passing a lead wire or cord is provided in the center.

Since the basic structure of the end cap 5 is the same on both the left and right sides, first, the structure of the common part will be described based on the description of FIGS.
First, the overall shape and dimensions have the same external shape as the illuminating lamp main body 3, and a fitting portion 5A that is fitted into the opening 4 of the illuminating lamp main body 3 is integrally provided on one end side. Needless to say, the fitting portion 5 </ b> A is designed such that its outer dimensions and shape substantially match the inner diameter size and shape of the illuminating lamp body 3. On the other end side, the support member 6 is integrally raised upward. In addition, a rectangular through hole 5 </ b> C is provided in the lower portion of the outer wall 5 </ b> B in the direction orthogonal to the longitudinal direction of the illuminating lamp body 3 of the end cap 5. This is for inserting a plug to an AC 100 V power source or a connection tool to another LED lighting lamp 13. Further, a slit 5E is provided at three sides in the center of the bottom wall 5D of the fitting part 5A, and the remaining one side is connected to the bottom wall 5D so that the free end can be moved up and down elastically, and the locking projection. 5F is provided integrally. By fitting into an engagement hole 2C provided in the bottom wall 2B of the illuminating lamp main body 3, the detachment from the illuminating lamp main body 3 is prevented. The bottom wall 5D covers the entire area of the end cap 5. Further, a pin insertion cylinder 5H is integrally suspended from the inner surface of the upper wall 5G, and an engagement pin 5I is integrally raised from the inner surface of the bottom wall 5D. The engagement pin 5I is connected to the pin insertion cylinder 5H. By fitting and inserting, mutual positioning and assembly can be performed. In FIG. 3, 5L is a positioning rib.

  A circular hole 16 that is an example of an opening that communicates with the inside and outside of the support member 6 is provided at the center of the inner wall 6B of the support member 6 in a direction perpendicular to the longitudinal direction of the lamp body 3. Further, the outer wall 6C of the support member 6 is covered with a non-porous plate. The support member 6 is hollow inside. In particular, the space 6B of the support member 6 of the end cap 5 on the side where the connection terminal block 14 is incorporated is connected to the internal space 5J of the fitting portion 5A, and continues to the internal space 3A of the illumination lamp main body 3.

  Next, as shown in FIGS. 3 and 11, a large number of LED bodies 7 (that is, light emitting diodes) as light emitting sources are arranged at predetermined intervals along the longitudinal direction at the center of the upper surface of the elongated printed board 8 made of a rigid material. It is implemented in a row. These many LED bodies 7 have the same shape and the same size. In the present invention, a chip type is adopted. More specifically, a concave type is adopted, and the light emission range is about 60 degrees between the center line of the chip and the light emitted closest to the horizontal line, and the whole range is 120 degrees. Exit. In this example, the LED body 7 is of a type in which 66 pieces are mounted, although the length is shortened or partially cut away. The interval between the LED bodies 7 is set to approximately 7 to 8 mm between the centers of the adjacent LED bodies. It should be noted that the LED body 7 can be employed in any form other than the chip type shown in the figure, such as a bullet type or other appearance.

  The printed circuit board 8 is formed of a heat-resistant synthetic resin plate having a length of about 520 mm, a width of about 11 mm, and a thickness of about 1 to 1.2 mm as an example. Further, as shown in FIG. 3, the power supply controlled by the electronic components provided on the LED power supply board 11 extending from one end to the other end in the longitudinal direction along the left and right edges of the lower surface of the printed circuit board 8. A pair of conductive patterns 17 are formed for sending the.

  As shown in FIGS. 2 and 3, particularly FIGS. 6A and 6B, the cover body 9 includes an arched ceiling wall 9 </ b> A so as to cover the entire upper area of the LED body 7 from both sides of the printed circuit board 8. The left and right side walls 9B are provided, and the cross-sectional shape is U-shaped with European characters. The width between the outer surfaces of the left and right side walls is about 11 mm, the height is about 11 mm, the length is about 520 mm, and the thickness is about 0.7 to 0.8 mm. The lower ends of the left and right side walls 9B are integrally provided with a flange 9C projecting laterally outward and a locking rib 9D raised integrally from the outer edge upward. These flanges 9C and locking ribs 9D are configured to be fitted in locking grooves of the holding body 10 described later to hold the mounting position. The dimension between the outer surfaces of the flange 9C is approximately 15 mm. A diffuse reflection surface 18 is formed on the inner surface of the arch-shaped ceiling wall 9A and the left and right side walls 9B. Yes.

  As shown in FIG. 6B, the irregular reflection surface 18 includes a group of concave grooves 19 that are arranged in many numbers along the longitudinal direction of the cover body 9. The concave groove 19 is provided over the entire length from the ceiling wall 9A to the lower end edges of the left and right side walls 9B. Further, the concave groove 19 is provided so as to be recessed so that the inner surface side is opened to the inner space 9E of the cover body 9 from the inner surface of the cover body 9 toward the outer surface. And the cross-sectional shape along the longitudinal direction of the cover body 9 is exhibiting the European letter V shape. The left and right oblique sides 19A of the concave groove 19 are formed with an inclination angle of approximately 45 degrees with respect to the horizontal plane. This is effective for effectively increasing the reflection efficiency of light emitted from the LED body 7. However, a desirable range is 30 degrees or more and 50 degrees or less. If the angle is less than 30 degrees or exceeds 50 degrees, the desired reflection efficiency cannot be obtained. That is, when the light emitted from each of the LED bodies 7 arranged in a row is viewed through the cover body 9, the emitted light of the individual LED bodies 7 appears to be a single straight line without being independent one by one. Can't achieve. Further, as shown in the figure, when the concave groove 19 is provided up to the lower end edge of the side wall 9B, the emitted light of the LED body 7 is radiated from the whole including the side wall 9B, not to mention the ceiling wall 9A of the cover body 9. Is done. The light emitted from the LED body 7 is directional, and generally depends on the structure of the LED body, but it is within a range of about 30 to 60 degrees laterally from the center line of the LED body 7, and is generally within a range of 60 to 120 degrees. is there. Therefore, it is different from that emitting emitted light over the entire 360 degrees like a fluorescent tube. For this reason, the side brightness is generally darker than the front. However, by providing the concave groove 19 as described above, the darkness of the side surface is eliminated, and a preferable lighting effect is obtained. Moreover, even when the power is turned off, external light, for example, sunlight or light from other light sources is diffusely reflected by the cover body 9, the cover surface becomes silver, and the internal LED body 7 also It is difficult to see and keeps its beauty.

  As shown in the figure, the irregular reflection surface 18 is composed of a plurality of concave grooves 19 arranged in parallel along the longitudinal direction of the cover body 9, and the included angle of the hypotenuse in the cross-sectional shape is 90 degrees. Although a right triangle is desirable, the structure is not limited to this. That is, as a second best measure, for example, as shown in FIG. 7, a long concave groove 191 provided over the entire length from one end to the other end along the longitudinal direction of the cover body 9 may be used. The irregular reflection surface 18 as a whole forms a corrugated uneven surface (an end surface shown in FIG. 7) with continuous irregularities. According to this structure, there is a slight problem in recognizing the light emitted from the LED bodies 7 in a line, but it is a very effective means for reducing glare and ensuring side brightness. . Further, in the structure shown in FIG. 6, the concave groove 19 is provided over the entire length from the ceiling wall 9A to the lower edge of the left and right side walls 9B, but as shown in FIG. 8, the left and right side walls 9B from the ceiling wall 9A. It may be a structure that ends in the middle of the up and down direction. Furthermore, the cross-sectional shape of the groove may be a semicircular shape instead of the European V-shape. In either case, compared with the conventional transparent cover body, it is very effective in reducing glare and securing side brightness. Needless to say, the above-described range and cross-sectional shape in which the groove is provided can also be applied to the long groove 191. In addition, in order to obtain the same effect as that of the concave groove 19, a satin finish may be used instead of the concave groove 19, although not shown. In any case, even when the power is turned off, when not in use, external light, for example, sunlight or light from other light sources is irregularly reflected by the cover body 9, and the cover surface becomes silver, It goes without saying that the internal LED body 7 is also difficult to see and can maintain its beauty.

  Next, as shown in FIG. 3, the holding body 10 is long along the longitudinal direction of the printed circuit board 8, and has a holding body main body 20 that has a concave shape with the upper part and both ends in the longitudinal direction opened. The supporting member 6 is connected to both ends of the body body 20 in the longitudinal direction, can swing around an axis P along the longitudinal direction of the printed circuit board 8, and can be held at an arbitrary swinging position. It is provided with a rotating member 21 held on the surface.

  The holding body 20 is a slender, light-transmitting and shape-retaining material made of synthetic resin. As shown in FIG. 9, the bottom wall 20 </ b> A is formed in a partial arc shape with the center in the left-right lateral width direction slightly recessed downward. The curvature is formed to be substantially the same as the radius of the upper wall 3A of the illuminating lamp body 3, that is, the cross-sectional partial arc shape. Further, the side wall 20B integrally rises upward from the left and right edges of the bottom wall 20A, and exhibits a U-shape of European characters whose cross-sectional shape is slightly crushed. The distance between the inner surfaces of the left and right side walls 20B is set to be approximately the same as or slightly wider than the width of the printed circuit board 8 and the cover body 9. That is, it is set to about 14.5 to 15.5 mm. The upper edges of the left and right side walls 20B are inverted to the inside of the holding body 10, and include an inverted U-shaped curled portion 20C as an example of a rib, and a locking groove into which the locking rib 9D of the cover body 9 can be inserted and fitted. 20D is formed. In addition, two ribs 20E and 20F are integrally projected on the inner surface of the side wall below the locking groove 20D at a predetermined vertical distance over the entire length in the longitudinal direction.

  The upper rib 20E below the curled portion 20C functions as a shelf for supporting the flange 9C provided at the lower end of the side wall 9B of the cover body 9. The curled portion 20C and the upper rib 20E firmly hold the both edges of the cover body 9 so that the mounting posture of the cover body 9 to the holding body 20 is maintained.

  Further, a locking groove 20G extending over the entire length of the holding body 20 is formed between the lower rib 20F and the upper rib 20E thereon. The left and right edges of the printed circuit board 8 are inserted and fitted into the locking groove 20G, and the printed circuit board 8 is sandwiched and firmly attached to the holding body 10.

  A locking groove 20H extending over the entire length of the holding body 20 is also formed between the lower rib 20F and the bottom wall 20A. The lowermost locking groove 20H is used for connection with a rotating member 21 which is another member constituting the holding body 10 described later.

  Next, as shown in FIGS. 10A to 10C, the rotating member 21 includes a connecting piece 21 </ b> A that can be inserted into and removed from the lowermost locking groove 20 </ b> H of the holding body 20, and the support of the connecting piece 21 </ b> A. A disc body 21B raised integrally from the end on the member 6 side, a locking projection 21C projecting toward the support member 6 at a predetermined interval in the circumferential direction of the disc body 21B, and the center of the disc body 21B It is comprised from the provided through-hole 21D. The through hole 21 </ b> D is configured to pass a lead wire 22 (see FIG. 3) that connects the conductive pattern 17 for power supply of the printed circuit board 8 to the LED power supply substrate 11 in the illuminating lamp body 3.

  The disc body 21 </ b> B is formed so as to have a diameter slightly shorter than the diameter of the circular hole 16 of the support member 6 and fit in the circular hole 16. That is, the disk body 21B is formed so that the circular hole 16 is closed. The disc body 21 is configured to freely rotate within the circular hole 16 around the central axis of the circular hole 16, that is, the axis P (see FIG. 3) along the longitudinal direction of the printed circuit board 8. Has been. In particular, when the through hole 21D is at the center of the disc body 21B, the lead wire 22 is less likely to be swung left and right even if the disc body 21B rotates within the disc hole 16, and may be damaged carelessly. There is no significant contribution to extending the service life. In the figure, reference numeral 21F denotes a support member which is integrally provided on the inner wall side of the disk body 21B and supports the inner surface of the upper wall 9A of the cover body 9. 21G is a rib provided on the upper surface of the connecting piece 21A to reinforce the connecting piece 21A.

Next, the holding body 10 is held with respect to the support member 6 so as to be swingable about an axis P along the longitudinal direction of the printed circuit board 8 and to be held at any swing position. The structure 23 will be described in detail.
As shown in FIGS. 3 and 5, particularly FIG. 10, the holding structure 23 is basically composed of the rotating member 21 and the support member 6. The circular hole 1 provided in the supporting member 6, the disk body 21B that is detachably locked to the inner edge of the circular hole 16, and a locking projection 21C provided on the disk body 21B. Using the frictional force between the locking projection 21C and the inner edge of the circular hole 16, the holding body 10 is swingable about the axis P (see FIG. 3) with respect to the support member 6, and is arbitrarily The position is held so that the position can be held at the swing position. More specifically, it is as follows.

  The locking protrusions 21C of the disk body 21B are provided at three locations at equal intervals in the circumferential direction. The locking projection 21C is radially outward from the protruding end of the protruding piece 21E having a length substantially the same as the thickness of the inner wall 6B (see FIG. 5A) in which the circular hole 16 of the support member 6 is provided. It has been launched together towards the direction. Accordingly, the distance from the center point of the disc body 21B at the apex of the locking projection 21E is slightly larger than the distance from the center point of the circular hole 16 at the opening edge of the circular hole 16. As a result, in order to fit this disc body 21B into the circular hole 16, the three locking projections 21C are biased toward the center side of the circular hole 16 by utilizing the elastic deflection of the protruding pieces 21E that support them. It is necessary to let After the fitting, each locking projection 21C is positioned on the back side of the opening edge of the circular hole 16 by the elastic restoring force of the protruding piece 21E, and the disc body 21B is prevented from being carelessly detached from the circular hole 16. To function. One of the locking projections 21C is provided at a portion corresponding to the apex of the disc body 21B.

  Further, since the back surface of the connecting piece 21A is configured to come into contact with the inner wall 6B below the opening edge of the circular hole 16 of the support member 6, the disk body 21B is fitted into the circular hole 16. As a result, the opening edge of the circular hole 16 is elastically held between the connecting piece 21A and the two lower locking projections 21C. For this reason, both the disc body 21B and the holding body main body 20 connected to the disk body 21B can be well maintained in their swinging positions even after the appropriate angle swinging.

  Further, the connecting piece 21A is integrally extended below the lower edge portion of the disc body 21B within a range of a quarter circumference of the disc body 21B. Accordingly, the back surface of the connecting piece 21A faces the support member 6 side, and when the disc body 21B is fitted into the circular hole 16, the inner wall 6B below the opening edge of the circular hole 16 of the support member 6 is formed. It is comprised so that it may contact | abut. A projection 21B1 protrudes from the back of the connecting piece 21A, that is, a portion facing the inner wall 6B of the support member 6 toward the support member 6 at the middle portion of the left and right widths. Further, a step portion 6D is formed along the edge of the circular hole 16 in the inner wall 6A so as to fall toward the circular hole 16 in a range corresponding to approximately one third of the lower portion, and the protrusion 21B1 can be fitted therein. It is configured as follows. Due to the step portion 6D and the protrusion 21B1, the disc body 21B has a left and right within the range of the step portion 6C around the central axis of the circular hole 16, that is, the axis P along the longitudinal direction of the printed circuit board 8. Can be swung about 90 degrees (about 88 degrees in the example shown in FIG. 1). However, in the final swinging step, the protrusion 21B1 hits the end wall 6D1 of the stepped portion 6D, so that further swinging is prevented.

  Further, as shown in FIGS. 1 and 11, the horizontal movement of the holding body 20 is made between the upper surface of the upper wall 2 </ b> A of the illuminating lamp body 3 and the lower surface of the bottom wall 2 </ b> A of the holding body 20. So that there is a slight gap 24, approximately 0.2 to 0.5 mm. The presence of the gap 24 reduces the possibility that the printed circuit board 8 and the LED body 7 are directly affected by the heat generated by the LED power supply board 11 accommodated in the illuminating lamp body 3. Therefore, unlike the conventional type in which the printed circuit board is directly attached to the main body of the illuminating lamp, the disadvantage of damaging the LED body 7 in the early stage is eliminated, which contributes to a longer life.

  Next, as shown in FIGS. 3 and 4, the input / output terminal block 12 is composed of a horizontal U-shaped frame 12D composed of a top plate 12A, a rear wall 12B, and a bottom wall 12C, and a rear wall 12B. A pair of electrode pins 12E are integrally provided at an appropriate distance from each other. The input terminal block 12 is housed in the fitting portion 5A of the end cap 5 with the electrode pin 12E facing the through hole 5C. The plug 26 of the electric cord 25 connected to the AC 100V power source is inserted here. The electrode pins 12E are electrically connected to one end of the LED power supply substrate 11 via lead wires 27, respectively. The lead wire 22 extends from the other end. The lead wire 22 passes from the internal space 3A of the illuminating lamp body 3 to the space 5J in the fitting portion 5A, and the support member 6 passes through the internal space 6A and passes through the through hole 21D of the disc body 21B. The conductive pattern 17 of the substrate 8 is electrically connected.

  As shown in FIGS. 3 and 5, the connection terminal block 14 is a U-shaped horizontally-facing U-shape composed of a top plate 14 </ b> A, a rear wall 14 </ b> B, and a bottom wall 14 </ b> C, like the input terminal block 12. A pair of electrode pins 14E are integrally provided on the frame 14D and the rear wall 14B with an appropriate left and right spacing. The connection terminal block 14 is accommodated in the fitting portion 5A of the end cap 5 with the electrode pin 14E facing the through hole 5C. A cord 28 connected to an AC 100V power source branched from the LED power source substrate 11 is connected to these electrode pins 14E. As shown in FIG. 2, the electrode pin 14E is connected with a connection cord or a connection tool 29 for supplying power to another LED illumination lamp illumination lamp 13 that is connected next to the electrode pin 14E (FIG. 2). reference). In FIG. 5, a part indicated by reference numeral 30 is a block body integrally projecting from the rear wall 14B so as to surround the periphery of the electrode pins 14E. This is in order not to make a mistake with the AC 100V power supply insertion side.

  2 shows an example in which the connection cord 29 is connected. As shown in FIG. 12A, the connection tool 31 is different from the end cap 5 on which the connection terminal block 14 is set. It is also possible to directly connect the end cap 5 on which the input / output terminal block 12 of the LED lighting lamp 13 is set. The connection tool 31 is provided with a recessed portion 31 </ b> A that can be fitted to the block body 30 from the middle, and the other is configured as a block body 31 </ b> B that fits into the input / output terminal block 12 of another LED illumination lamp 13. Is configured to do. A pair of left and right connection pins 31C are provided from the recessed portion 31A to the block body 31B.

  When this connector is used, as shown in FIG. 12B, the end cap 5 on which the connection terminal block 14 is set and the end cap on which the input / output terminal block 12 of another LED illumination lamp 13 is set. 5 can be connected in close contact with each other, and a large number of LED lighting lamps 1 can be obtained as a single illuminating body in series.

The LED lighting lamp 1 according to the embodiment configured as described above has the following effects.
That is, the cover body 9 that covers the LED body 7 is configured with the concave groove 19 so as to diffusely reflect the light emitted from the LED body on its inner surface, so that unlike the conventional transparent cover, Each of the LED bodies 7 is not recognized as a point and can be seen as a single straight line, thereby reducing glare. Moreover, even when the power is turned off, external light, for example, sunlight or light from other light sources is diffusely reflected by the cover body 9, the cover surface becomes silver, and the internal LED body 7 also It is difficult to see and keeps its beauty.

  Since the direction of the LED body 7 can be freely changed within a predetermined range, as shown in FIG. 1, even after the LED lamp 1 is attached to a display shelf or a show window, Various lighting effects can be expected compared to those that could only be emitted in one direction. That is, when the LED body is in a so-called fixed position indicated by a solid line in FIG. 1, its emission range is limited to a 120-degree range as described above. However, in the present invention, since it can be swung left and right, for example, when it is swung fully to the right or left, the lowermost part in the emitting direction is exactly the center of the LED body and the illumination lamp body 3 as shown in FIG. It is possible to emit over a wide range (the range indicated as the emission range in the drawing) reaching the meeting point with the side wall of the upper wall 2A, that is, the extended line segment connecting the upper corner portion, and within this range, Any part can be emitted. As a result, it is possible to obtain a lighting effect that is far more efficient and rich in variety than a model in which a conventional LED body is fixedly provided.

  As shown in FIGS. 1 and 11, the holding body 10 is positively provided between the upper surface of the upper wall 2 </ b> A of the illuminating lamp body 3 and the lower surface of the holding body body 20 that holds the printed circuit board 8. Needless to say, the swinging of the LED board 7 is performed smoothly, and the printed circuit board 8 and the LED body 7 may be directly affected by the heat generated by the LED power supply board 11 housed in the illuminating lamp body 3. Less. Therefore, unlike the conventional type in which the printed circuit board is directly attached to the main body of the illuminating lamp, the disadvantage of damaging the LED body 7 in the early stage is eliminated, which contributes to a longer life.

  The mounting of the printed circuit board 8 and the cover body 9 to the holding body 10 and the connection between the holding body main body 20 and the disk body 21A are performed by inserting into the locking grooves 20D, 20G, and 20H groups provided in the holding body main body 20. Therefore, processing and assembly work can be provided easily and inexpensively. At the same time, the holding body 20 is responsible for holding the printed circuit board 8 and the cover body 9 and also serves as a connector for connecting the printed circuit board 8 and the cover body 9 to the support member 6 of the illuminating lamp body 3. The structure is simple and can be provided at low cost. Further, since the entire lower surface of the printed circuit board 8 is covered, it is advantageous in terms of safety and protection of the printed circuit board 8, and the strength can be maintained.

  The LED lighting according to the present invention described above is not limited to being applied to display shelves and show windows, but is applicable to fields that require the present invention, such as various signboard materials or general lighting equipment. Needless to say, you can. Further, as shown in FIG. 13, the cover body 9 is formed of a square shape having a downward opening, that is, a horizontal ceiling wall 9A, and left and right walls 9B that are integrally suspended from the left and right sides and are suspended at a right angle. You can also. In this case, in particular, when a chip-type LED body 7 (not shown) is adopted, the overall volume can be further reduced, and a more compact configuration can be achieved. It goes without saying that the concave groove 19 on the inner surface is provided over the entire area from the ceiling wall 9A to the left and right walls 9B. This is to increase the lighting effect.

Industrial application fields

  The LED illumination lamp according to the present invention reduces glare without incurring a decrease in luminous flux, and in a good-looking form so that the light column of the LED body in which dots are continuous is as straight as possible. In addition, the irradiation direction of the light emitted from the LED body can be freely changed regardless of the mounting position of the main body, so that it is not limited to illumination lights such as show windows and display shelves, but also in ordinary households, for example, on a desktop or floor It can also be applied sufficiently widely as a stand or an indoor indirect lighting.

DESCRIPTION OF SYMBOLS 1 ... LED illumination light 2A ... Upper wall 3 ... Illumination lamp main body 4 ... Opening 5 ... End cap 5C ... Through-hole 6 ... Supporting member 6D ... Step part 6D1 ... End wall 7 ... LED body 8 ... Printed circuit board 9 ... Cover body 10 DESCRIPTION OF SYMBOLS ... Holding body 11 ... LED power supply board 16 ... Circular hole 18 ... Diffuse reflection surface 19 ... Concave groove 20 ... Holding body 20D, 20G, 20H ... Locking groove 20E ... Upper rib 20F ... Lower rib 21 ... Turning member 21A ... Connecting piece 21B ... Disc body 23 ... Holding structure 24 ... Gap

JP 2002-140901 A Japanese Patent Laid-Open No. 2004-63237

Claims (8)

In an LED illuminating lamp provided with a large number of LED bodies each emitting light when energized in an illuminating lamp main body including electronic components including an LED power supply board, a large number along the longitudinal direction of the surface of an elongated printed board A plurality of LED bodies are mounted, and a transparent cover body is provided to cover the large number of LED bodies. The cover body has an inner surface as a diffusely reflecting surface for irregularly reflecting light emitted from the LED bodies. LED lighting characterized by being. In an LED illuminating lamp provided with a large number of LED bodies each emitting light when energized in an illuminating lamp main body including electronic components including an LED power supply board, a large number along the longitudinal direction of the surface of an elongated printed board A plurality of LED bodies are mounted, and a transparent cover body is provided to cover the large number of LED bodies. The printed circuit board and the cover body are attached to support members provided at both ends in the longitudinal direction of the illuminating lamp body. An LED illuminating lamp characterized in that it can be swung around an axis along the longitudinal direction of the substrate and can be held at an arbitrary swung position. A support member provided at both ends in the longitudinal direction of the illuminating lamp body in an LED illuminating lamp including a plurality of LED bodies each emitting light when energized in an illuminating lamp body including electronic components including an LED power supply board; A long and narrow printed circuit board on which a large number of LED bodies are mounted on the surface along the longitudinal direction, and an inner surface is configured as a diffusely reflecting surface for irregularly reflecting the irradiation light from the LED bodies. A transparent cover body that covers the printed circuit board and a holding body that supports and holds at least both ends of the cover body, and the holding body extends along the longitudinal direction of the printed circuit board with respect to the support member. An LED illuminating lamp characterized by being connected to each other through a holding structure that can be swung around an axis and can be held at an arbitrary swinging position.   The concaves and convexes provided on the inner surface of the cover body are concave grooves arranged in parallel along the direction orthogonal to the longitudinal direction of the printed circuit board, and the sectional shape of the concave grooves in the direction along the longitudinal direction of the printed circuit board is The LED illumination lamp according to any one of claims 1 to 3, wherein the LED has a V shape of a European letter and an angle of a hypotenuse is in a range of 30 to 50 degrees.   The holding body is long along the longitudinal direction of the printed circuit board, and is connected to the holding body main body having a concave shape in which both the upper and longitudinal ends are opened, and the both ends of the holding body main body in the longitudinal direction, The supporting member is provided with a rotating member that is swingable about an axis along the longitudinal direction of the printed circuit board and that is held so as to be able to hold a position at an arbitrary swinging position, from the bottom plate of the holder body The inner surfaces of the left and right rising walls that are connected to each other are provided with three ribs integrally protruding at a predetermined vertical distance along the longitudinal direction, so that there are three upper and lower engaging grooves for insertion and removal. The left and right edges of the cover body, the left and right edges of the printed circuit board in the middle, and the connecting piece that extends integrally from the lower edge of the rotating member in the bottom LED according to any one of claims 2 to 4, Akirato.   6. The structure according to claim 2, wherein a gap is provided between the lower surface of the printed circuit board or the holder body of the holder and the upper wall of the illuminating lamp body to allow the printed circuit board to swing. LED lighting as described in 1.   The rotating member is a connecting piece that can be inserted into and removed from the lowermost insertion / extraction groove of the holding body, and is integrally raised from the support member side end of the connecting piece and is rotatably mounted on the supporting member. A disc body, a locking projection protruding toward the support member at a predetermined interval in the circumferential direction of the disc body, and a through hole provided in the center of the disc body, the through hole on the printed circuit board The LED illuminating lamp according to any one of claims 2 to 6, wherein the LED illuminating lamp is configured to pass through a lead wire for connecting a conductive pattern for power supply to an electrical component in the illuminating lamp body.   The holding structure is composed of the rotating member and the supporting member, and the supporting member is provided with an opening for fitting the disc body of the rotating member, and the rotating member is locked to the inner edge of the opening. The protrusion is releasably locked, and the holding body is rotated around the axis along the longitudinal direction of the printed circuit board with respect to the support member by utilizing the frictional force between the locking protrusion and the inner edge of the opening. The LED illumination lamp according to any one of claims 2 to 7, wherein the LED illumination lamp is configured to be freely swingable and to be held at an arbitrary swinging position.

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