JP2003281925A - Lighting fixture, lighting fixture body and LED element - Google Patents

Abstract

(57) [Problem] To provide an energy-saving lighting device using an LED. The light source includes an arbitrary number of LED elements and an LED element holder as a lighting fixture main body, which is insertable and detachable, and can be energized at the time of mounting.
A first leg having a chip and a leg serving as a terminal for supplying power to the positive and negative terminals thereof, wherein the first leg is electrically connected to the positive and negative terminals along the axial direction; The terminal and the second leg terminal are formed in a state in which they are insulated from each other, and the LED element holder is provided with a first power supplied from the outside.
A power supply terminal and a second power supply terminal, and a holding unit that holds the arbitrary number of LED elements, wherein the holding unit has a first power transmission film and a second power transmission film that are insulated from each other. The first and second power transmission films are electrically connected to the first and second power supply terminals, respectively, and are configured to have an inserted portion smaller in diameter than the leg portion. , The LE inserted in the inserted portion
The D element is configured to be electrically connected to the first and second leg terminals of the leg.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting fixture, a lighting fixture main body as a portion of the lighting fixture excluding a light source, and an LED element as the light source.

[0002]

2. Description of the Related Art Conventionally, various lighting fixtures have been used as lighting in the fields such as roads and parks and in various rooms. For example, outdoor lighting has been performed using various so-called light bulbs and fluorescent lamps that naturally consume a large amount of power. Such outdoor lighting consumes a large amount of power, but it is considered that there is no other method than this, and no measures have been taken. On the other hand, in order to save energy, for example, an LED that operates with less electric power than a fluorescent lamp may be used, but the current situation is that the LED is not suitable for actual lighting in the field or the like. Therefore, energy saving was not achieved.

[0003]

As described above, conventionally, there is no lighting fixture suitable for energy saving, and it has not been possible to effectively prevent a large amount of power from being consumed.

The present invention has been made in view of the above,
The purpose is to use various types of lighting equipment that can save energy using LEDs, for example, indoor or outdoor lighting equipment,
It is intended to provide a lighting fixture body and an LED element.

[0005]

The lighting fixture of the present invention is an LE as a lighting fixture main body in which an arbitrary number of LED elements as a light source and a detachable number of LED elements are attachable and can be energized at the time of insertion and mounting.
A D element holding body is provided, and the LED element has an LED chip and leg portions as terminals for supplying power to positive and negative terminals thereof, and in the leg portion, along the axial direction, A first leg terminal and a second leg terminal, which are electrically connected to the positive and negative terminals, are formed in a state of being insulated from each other, and the LED element holding body is a first power source supplied from the outside.
Power supply terminal and second power supply terminal, and the arbitrary number of LEDs
And a holding unit for holding the element, the holding unit having a first power transmission film and a second power transmission film which are in an insulated state from each other, and the first and second power transmission films are respectively the first and second power transmission films. The leg of the LED element inserted into the inserted portion is electrically connected to the first and second power supply terminals and has an inserted portion having a diameter smaller than that of the leg portion. And is electrically connected to the first and second leg terminals of the section.

The lighting apparatus main body of the present invention is a lighting apparatus main body in which an arbitrary number of LED elements as a light source can be attached and detached, and the LED elements can be energized when attached. And a second power supply terminal, and a holding unit that holds the arbitrary number of LED elements, the holding unit having a first power transmission film and a second power transmission film that are insulated from each other, The first power transmission film and the second power transmission film are electrically connected to the first power supply terminal and the second power supply terminal, respectively, and are configured to have an inserted portion having a diameter smaller than that of the leg portion. It is configured to be electrically connected to the first and second leg terminals of the leg portion of the LED element inserted in the inserted portion.

The LED element of the present invention is an LED element as a light source, which is detachable from the main body of the luminaire and is supplied with electric power from the main body of the luminaire when mounted.
A chip and a leg portion as a terminal for supplying power to the positive and negative terminals of the chip; and the leg portion is electrically connected to the positive and negative terminals along the axial direction; The second leg terminals are configured so as to be insulated from each other.

[0008]

1 is a sectional view showing an entire lighting fixture according to the present invention. In the figure, reference numeral 1 denotes a so-called base, which has first and second terminals 1a and 1b to which positive and negative power supplies are supplied as in a general-purpose light bulb or the like. That is,
The base 1 is configured to be attachable to and detachable from a general-purpose socket. A round base 2 is fixed to the bottom of the base 1 in the figure. Although the base 2 is inverted in the figure, it is in the shape of a shallow container, and the inner surface of the peripheral edge portion 2a that has fallen is a female screw. The LED elements 11, 11, ... Shown in FIG. 3 are removably inserted into the bottom surface of the base 2 on the center side.
The ED holding unit 3 is fixed. As shown in FIGS. 1 and 2, this holding unit 3 has an arbitrary number of inserted LED elements 11, 11, ..., Two terminals of which are two terminals 1 a, 1 b of the base 1.
It is mechanically held in a state of being electrically connected to. That is, the LED elements 11, 11, ... Are held here by the silicone rubber film 7 to be described later by inserting them into the preformed guide holes 5a, 9a (FIG. 3) of the holding unit 3, and the first portion of the base 1 is held. Finally, the second terminals 1a and 1b are finally energized via two terminals 11c and 11d, which will be described later, so that they can be turned on. This silicone rubber film 7
As the material, other than silicon rubber, another material for holding the inserted LED element 11 can be used.

This will be described in more detail. As shown in FIG. 3, the holding unit 3 is formed as a hollow container having a five-fold structure. The quintuple structure is configured as an outer resin cover 5, an outer power transmission coating 6, a silicone rubber film 7, an inner power transmission coating 8, and an inner resin cover 9 from the outside to the inside. The outer and inner resin covers 5 and 9 are configured as hard ones having a certain strength, and guide holes 5a for guiding the insertion of the LED element 11 are provided.
9a, respectively. As can be seen from the figure, the LED element 11 is made by encapsulating the LED chip 10 between the plus electrode 11a and the minus electrode 11b and energizing the resin, and resin-sealing. That is, these electrodes 11
Each of a and 11b is configured to integrally or electrically conduct with the conical plus leg terminal 11c and the minus leg terminal 11d. These leg terminals 11c, 11
d functions as a so-called male electrode terminal, and the mesh-shaped outer and inner power transmission coatings 6 and 8 described later are used as female electrode terminals electrically connected to these. This LE
Positive and negative leg terminals 11c and 11d of the D element 11
Is guided by the guide holes 5a and 9a, and the holding unit 3
And is held by the silicone rubber film 7. The leg terminals 11c and 11d are insulated from each other by the insulator 11e. In this holding state, as described above, these electrodes 11c and 11d are electrically connected to the outer and inner power transmission coatings 6 and 8 which are electrically connected to the two terminals 1a and 1b of the base 1. ing. That is, these power transmission coatings 6 and 8 are configured in a mesh shape, and one of the meshes (inserted portion) is gradually expanded by the minus leg terminal 11d at the tip as the LED element 11 is inserted. Thus, the insertion and passage of these leg terminals 11d and 11c are allowed. In this state, the negative leg terminal 11d
The inner power transmission film 8 and the positive leg terminal 11c are in electrical contact with the outer power transmission film 6 by contacting them. The pair of power transmission films 6 and 8 can be made of various conductive materials. Further, it is desirable that the size of the mesh of the power transmission coatings 6 and 8 returns to the original size when the LED element 11 is once inserted as shown in FIG. 3 and then withdrawn. In this case, it is also possible to use a wire of a shape memory alloy containing nickel as a main component, which is restored by a little heating, a beryllium steel alloy wire having an elastic restoring force, a phosphor bronze wire, or the like. These power transmission films 6 and 8 are insulated from each other by a silicon rubber film 7 sandwiched between them. The silicon rubber film 7 also has a function of firmly holding the LED element 11 inserted as described above in the falling prevention state.

With this structure, the LED element 11
If the LED element 11 is securely held by the holding unit 3 without using soldering or the like and the two terminals 11d,
11c is electrically connected to the power transmission coatings 8 and 6 and is in a state in which power can be supplied. At this time, the brightness can be adjusted by appropriately selecting the number of LED elements 11 to be inserted. Further, as the LED element 11, various colors can be used, whereby the color tone as a whole can be easily adjusted together with the brightness. To create white light, RG
It is preferable that the LED elements of three colors B (red, green, and blue) are set as one unit and the brightness is adjusted by increasing or decreasing the number of units. Furthermore, it is easy to pull out after inserting once. Thereby, as described above, the brightness and color tone can be easily adjusted thereafter.

Even after being pulled out, the meshes of the pair of power transmission coatings 6 and 8 are reduced in size to the original size automatically or by being exposed to sunlight or by simple heating with a dryer or the like. Even if 11 is inserted, L
The terminals 11c and 11d of the ED element 11 and the power transmission coatings 6 and 8 can be reliably electrically conducted. Instead of the mesh-shaped outer and inner power transmission coatings 6 and 8, it is also possible to use a conductive rubber film or a metal thin film in which a large number of holes (inserted portions) are previously formed. That is, in the former case, a hole is made in the conductive rubber film at a place where the so-called leg portion (11c, 11d, 11e) of the LED element 11 is to be inserted. The diameter of each of these holes is made smaller than the diameter of the leg portion. The legs of the LED element 11 are inserted into the conductive rubber film while expanding the holes that have been previously punched, and finally the insertion state shown in FIG. 3 is established, so that mutual electrical connection is surely made. From this insertion state, this LE
When the D element 11 is pulled out, the hole in the conductive rubber film returns to its original diameter due to the elastic restoring force and the diameter thereof is reduced. In the latter case where a metal thin film is used, holes (inserted parts) having a diameter slightly smaller than that of the legs can be formed, and a plurality of cuts (slits) are radially formed on the inner peripheral edge of the holes to form a plurality of holes. The elastic piece is formed. As a result, when the LED element 11 is inserted, each elastic piece is pushed and curved in the intrusion direction of the leg portion, the hole is widened, and the leg portion is inserted. In this state, the elastic pieces in the curved state are in a state of tightening the leg portions in an attempt to return to the original state, so that electrical conduction is ensured.
When the legs are pulled out from this state, the elastic pieces are restored to the upright state and are ready for the next insertion. That is, even when a conductive rubber film or a metal thin film is used as the inner and outer power transmission coatings 6 and 8, the same function as when using the mesh-shaped one can be performed.

A transparent cover 13 is detachably attached to the outside of the holder 3 thus constructed. That is, as can be seen from FIG. 1, a stopper ring 13a having a male thread on the outer periphery is fitted to the edge of the transparent cover 13. The male screw of the stopper ring 13 and the peripheral portion 2 of the base 2
The transparent cover 13 is attached and detached by the female screw inside a.

FIG. 4 shows a lens cap 21 which is attached to and detached from the head of the LED element 11 as needed. This lens cap 21 has a cylindrical portion 21a on the proximal end side and a lens portion 21b on the distal end side that can be attached to and detached from the cylindrical portion 21a. Lens part 21b
For this, a plurality of lenses having different lens performances are prepared.
The tubular portion 21a is made of an elastic material, into which the head portion of the LED element 11 is press-fitted, and has a pair of slit-shaped gaps 21c, 21c shown in the cross section. As shown by the arrow in FIG. 4C, the cylindrical portion 21a is elastically deformed so that these slits 21c, 21c expand and contract in the left-right direction in the figure, and the LED element 1 inserted therein is inserted.
Hold the head of No. 1 by crimping. The lens portion 21b is for extending the reaching distance of the light from the LED element 11 to a desired distance as necessary. That is, the cap 21 is used as needed and is not always attached and used, but by using the cap 21, the state of dispersion of illumination light and the magnitude of illuminance at a locally specific place can be arbitrarily set. Can be changed. The portion of the cap that has the lens-like effect generally has the function of a convex lens.
Therefore, by arbitrarily changing the distance between the lens function section and the LED light emitting section, the light passing through the lens section can have an arbitrary spread. As shown in FIG. 5, if the focal length of the lens section is f, the distance from the lens center to the light source is a, and the distance from the lens to the lens center at the position of the image of the light source is b, the thin convex lens is shown. Assuming the case of, the following relationship is established between these two like public knowledge.

(1 / a)-(1 / b) = 1 / f (f> 0) (1) Therefore, if b is solved from the above equation, b = af / (f−a) = − f + (F ² / (f−a)) (2) and the relationship between a and b is as shown by the solid line in FIG. 5 (b). By changing the value of a, the image of the light source is on the right side of the lens. The image can be formed anywhere except the position between the front of the image and the focal point (b between 0 and -f in the figure). It can be seen that it is a bright spot.

As described above, a plurality of lens portions 21b, that is, a plurality of lenses having different performances as a convex lens are prepared, and the cylindrical portion 21a is appropriately selected according to the purpose of use. Used by being attached to.

As is clear from the above description, according to the embodiment of the present invention, the following various advantages can be obtained.

Since the LED element is used as the light emitting element, the energy can be remarkably saved, and there are several kinds of LED emission colors such as white, red and blue.
It is possible to obtain illumination light of a desired color tone by mixing and emitting light all together.

Usually, the commercially available LEDs are + and −2.
It has a structure in which a book electrode wire is exposed, and these must be connected to the power supply terminal by soldering or the like. Therefore, practically, it is difficult to mount and dismount, and it is difficult to mount many LED elements densely in a limited place, and thus it is difficult to generate light like a point light source. On the other hand, in the present invention, the electrode terminal of the LED is a single leg type electrode as shown in FIG. 1, so that the following effects can be obtained. a. The LED element can be attached and detached easily by inserting or pulling out the leg portions into the holes (mesh) of the other party, and the attachment and detachment of the element can be easily and repeatedly performed. b. Although there are restrictions due to the size of the heads of the LED elements, in principle, the LEDs can be mounted side by side as closely as possible until the elements contact each other. As a result, it is possible to create a light source that is like a light source. c. Since the LED element can be attached / detached even on a curved surface, various shapes of light emitting aggregates can be produced.

Since the wire mesh electrode, the perforated conductive rubber film or the perforated metal thin film is adopted as the female electrode terminal, the following effects can be obtained. FIG. 3 illustrates an LED assembly lamp. At the same time, the sectional structure of the portion into which the LED element is inserted is also shown. One of the main features here is that a wire mesh made of thin wires of shape memory alloy is used for the electrodes. Since this material is a metal although it is an alloy, it has sufficient electric conductivity, and since the main component is generally nickel, it is not so expensive. In addition, even if the wire mesh is locally deformed at an appropriate temperature, it can be restored by heating with a dryer or the like. Further, when a conductive rubber film or a metal thin film having an elastic mesh or a porous material is used, the mesh and holes are automatically restored. As a result, even if the legs of the LED element are repeatedly taken in and out, and therefore the meshes and holes of the wire mesh are deformed, the deformation is easily repaired because the alloy electrodes are used. Also, troubles due to inadequate electrode contact are eliminated.

[0020]

As described above, according to the present invention, the number of LED elements to be used can be arbitrarily selected,
Moreover, when attaching these LED elements, it is only necessary to insert them into the main body side, there is no need for complicated and time-consuming work such as soldering, and the LED elements once inserted can be easily removed by pulling out, Not only can the LED element and the main body side be maintained in a mechanically and electrically connected and held state by repeating such attachment and detachment, but also the LED in the state in which the LED element is attached to the main body
Since the electrical connection between the two terminals of the element and the two terminals on the main body side is realized by press-fitting the leg-shaped terminals into the mesh-shaped terminals, the conventional connecting means such as soldering can be used. It is possible to make the mounting density of LED elements significantly higher than that of the LED elements. Furthermore, by arbitrarily selecting the number and the color of the LED elements to be used, the brightness and color tone can be adjusted in actual use. It can be done very easily.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an embodiment of the present invention.

FIG. 2 is a cross section taken along line AA of the holding unit.

3 is an enlarged cross-sectional view of a portion surrounded by a broken line in FIG.

4A and 4B show a lens cap, FIG. 4B is an overall vertical sectional view, FIG. 4A is a sectional view taken along line BB thereof, and FIG. 4C is a sectional view taken along line CC.

FIG. 5 is a graph showing the relationship between the optical path of the lens cap, the light source, and the image.

[Explanation of symbols]

1 mouthpiece 1a, 1b First and second terminals 2 foundation 3 holding unit 5 Outside resin cover 6 Outer power transmission film 7 Silicone rubber film 8 Inner power transmission film 9 Inner resin cover 11 LED element 11c, 11d Leg terminal 13 transparent cover 13a Stopper ring 21 lens cap 21a tube 21b lens part

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) // F21Y 101: 02 F21S 1/02 G (72) Inventor Fujii Ishine Higashi Tama-ku, Kawasaki City, Kanagawa Prefecture 1-1-1 Mita, Faculty of Science and Engineering, Meiji University (72) Inventor, Shunji Kishimura, 169-1, Kamizuruma, Sagamihara City, Kanagawa Prefecture, Ltd., within Kimin Industry (72) Inventor, Shinichiro Horii, Kohoku Ward, Yokohama City, Kanagawa Prefecture 575 Shinbamachi F-Term in Armalite (Reference) 3K013 AA02 AA03 BA01 CA02 CA16 DA09 EA03 EA09 5F041 DA39 DA43 DA77 DC07 DC22 DC67 DC82 EE16 FF11

Claims (13)

[Claims] 1. A light source comprising an arbitrary number of LED elements and an LED element holder as a main body of a luminaire, in which the LED elements can be attached and detached and can be energized at the time of insertion and mounting. And a leg portion as a terminal for supplying power to the terminal, and in the leg portion, a first leg terminal and a second leg terminal which are electrically connected to the positive and negative terminals along the axial direction. The leg terminals are formed so as to be insulated from each other, and the LED element holder has a first feeding terminal and a second feeding terminal that are fed from the outside, and a holding unit that holds the arbitrary number of LED elements. And the holding unit has a first power transmission coating and a second power transmission coating which are insulated from each other, and the first and second power transmission coatings are respectively the first and second power feeding layers. Electrically connected to the terminals Than cage and the leg portion is configured as having a smaller diameter insertion member, the L this is inserted into the inserted part
A lighting fixture, characterized in that it is electrically connected to the first and second leg terminals of the leg portion of the ED element. 2. The holding unit further comprises an insulating elastic intermediate layer for holding the leg portion of the LED element inserted therein between the first and second power transmission coatings. The lighting fixture according to claim 1. 3. The outer cover and the inner cover of the holding unit, wherein guide holes for guiding the insertion of the leg portions of the LED elements are provided outside the first and second power transmission coatings, respectively. The lighting fixture according to claim 1, further comprising: 4. The first and second power transmission coatings of the holding unit are expanded to the inserted portions by the insertion of the leg portions of the LED elements, but are restored to their original sizes after being pulled out. The luminaire according to any one of claims 1 to 3, wherein the luminaire is made of a material having a restoring property of returning to the diameter. 5. The leg portion of the LED element is formed by forming the first leg terminal on the base end side and the second leg terminal on the tip end side.
1 to 4 any one of the lighting fixtures. 6. The luminaire according to claim 1, wherein the LED element further comprises a detachable lens cap for adjusting a light reaching distance. 7. A lighting fixture main body in which an arbitrary number of LED elements as a light source can be attached and detached and which can be energized when they are inserted and attached, and a first feeding terminal and a second feeding terminal which are fed from the outside. A holding unit for holding the terminal and the arbitrary number of LED elements is provided, and the holding unit has a first power transmission film and a second power transmission film which are in an insulated state from each other. Of the power transmission film is electrically connected to the first and second power supply terminals, and has an inserted portion having a diameter smaller than that of the leg portion, and is inserted into the inserted portion. The luminaire main body is configured so as to be electrically connected to the first and second leg terminals of the leg portion in the formed LED element, respectively. 8. The holding unit further comprises an insulating elastic intermediate layer for holding the leg portion of the LED element inserted therein between the first and second power transmission films. The luminaire main body according to claim 7. 9. The outer cover and the inner cover of the holding unit, wherein guide holes for guiding the insertion of the leg portions of the LED elements are provided outside the first and second power transmission films, respectively. 9. The lighting fixture body according to claim 7, further comprising: 10. The first and second power transmission coatings of the holding unit are expanded to the inserted portion by the insertion of the leg portions of the LED element, but are restored to their original size after being pulled out. The luminaire main body according to any one of claims 7 to 9, wherein the luminaire main body is made of a material having a restoring property of returning to the mesh. 11. A detachable body for a lighting fixture body,
An LED element as a light source, which is supplied with power from the main body of the luminaire at the time of mounting, and has an LED chip and a leg portion as a terminal for supplying power to positive and negative terminals of the LED chip, and the leg portion is a shaft. A first leg terminal and a second leg terminal, which are electrically connected to the positive and negative terminals, are formed in a state of being insulated from each other along the direction. 12. The LED element according to claim 11, wherein the leg portion is formed by forming the first leg terminal on the base end side and the second leg terminal on the tip end side. 13. The LED device according to claim 12, further comprising a lens cap that is attachable to and detachable from the light emitting unit and that can adjust a light reaching distance by mounting the lens cap.