JP5211661B2 - Lighting device - Google Patents

Description

  The present invention relates to a lighting device, and more particularly to a lighting device having a light emitting element chip.

Conventionally, an illuminating device using a light bulb as a light source is required to be able to easily change the number and arrangement of the illuminating device itself according to the application. For this reason, various developments have been made.
For example, Patent Literature 1 discloses a lighting device that is detachably attached to a rail for supplying power by a magnetic force. Specifically, the conventional lighting device includes a base portion having two conductive plates sandwiching a magnet, a light source portion having a light bulb and a reflector, a conductive support portion connecting the base portion and the light source portion, The lighting fixture main body which has is provided. At this time, the two conductive plates are magnetized to such an extent that they are attracted to the metal by the sandwiched magnet. Furthermore, the two metal rails for installing the lighting fixture body and supplying power are arranged so as to be insulated from each other with an insulator interposed therebetween. A voltage suitable for lighting the bulb is applied between the rails. For this reason, in the conventional lighting device, the voltage applied to the metal rail is applied to the light bulb through the conductive plate by attracting the conductive plate of the illuminating device main body to the metal rail by magnetic force (for example, Patent Document 1). reference).
With the above configuration, the conventional lighting device can easily and quickly perform operations such as attachment and detachment of the light source (illuminator main body), and can flexibly cope with the usage.

Noto 3053783 (Fig. 1)

However, when an illuminating device using a light bulb as a light source is used, there are many cases where the lamp is not lit due to a broken bulb. The conventional lighting device has a problem that it is necessary to replace the light bulb with a new light bulb each time and the workability is lacking. Furthermore, there is a limit to downsizing (particularly thinning) of the lighting device itself.
In addition, in the conventional lighting device, there is a risk of dropping the lighting fixture body and damaging the light bulb itself when using or attaching or removing the light source (lighting fixture body). Met.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a highly reliable lighting device to which a light source can be attached and detached.

  According to the present invention, the above problem is solved by the following means.

The illumination device of the present invention includes a support provided with a pair of rails made of a metal member to which a voltage can be applied; a light emitting element chip; a substrate on which the light emitting element chip is provided on the upper surface side; and a lower surface of the substrate An illuminator body having at least one magnet provided on the side and a pair of terminal portions provided on the lower surface side of the substrate and electrically connected to the light emitting element chip; The pair of terminal portions are electrically connected to the pair of rails by being attracted to at least one of the pair of rails by a magnetic force. Accordingly, the light source can be attached and detached, and a highly reliable lighting device can be obtained. Furthermore, the lighting device can be reduced in size.
Further, the pair of terminal portions can be electrically connected to the pair of rails via the magnet. Thereby, an illuminating device can be further reduced in size. Furthermore, when attaching a lighting fixture main body to a support body, it can prevent that a terminal part and a rail raise | generate a contact failure.
Further, the terminal and the magnet can be arranged independently of each other along the longitudinal direction of at least one of the rails. Thereby, since the function of electric power feeding and adsorption | suction can be isolate | separated, the influence on the magnetic force by applying a voltage to a magnet can be suppressed.

In addition, the lighting device of the present invention includes a support provided with a pair of rails made of a metal member to which a voltage can be applied, and a suction member disposed so as to be insulated from the pair of rails; A pair of a chip, a substrate on which the light emitting element chip is provided on the upper surface side, a magnet provided on the lower surface side of the substrate, and a pair of electrodes provided on the lower surface side of the substrate and electrically connected to the light emitting element chip A lighting fixture body having a terminal portion, and the pair of terminal portions are electrically connected to the pair of rails by the magnet being attracted to the attracting member by a magnetic force. It is characterized by. Accordingly, the light source can be attached and detached, and a highly reliable lighting device can be obtained. Furthermore, since the functions of power feeding and adsorption can be separated, it is possible to prevent a voltage from being applied to the magnet to affect the magnetic force. Furthermore, the lighting device can be reduced in size.
Further, the adsorption member is preferably a rail made of a metal member. Thereby, attachment and detachment of a light source can be made still more flexible.

The pair of terminal portions are preferably elastic members. Thereby, when attaching a lighting fixture main body to a support body, it can prevent that a terminal part and a rail raise | generate a contact failure.
Moreover, it is preferable that the said magnet is latched by the hook part provided in the lower surface of the said board | substrate. Thereby, it can prevent that a magnet remove | deviates from a board | substrate.
The support body includes a bottom portion provided with the pair of rails, and a pair of side portions provided at both ends of the bottom portion along the pair of rails. Preferably, a pair of grooves that can be fitted to the pair of side portions are formed on the lower surface of the substrate, and the thicknesses of the pair of side portions are different from each other. Thereby, when attaching a lighting fixture main body to a support body, an attachment direction can be guide | induced correctly.
The lighting device of the present invention further includes a mounting substrate on which a light emitting element using the light emitting element chip is mounted, and a metal film provided on a mounting surface of the light emitting element on the mounting substrate. Preferably, a through hole is formed from the upper surface to the lower surface of the substrate, and the metal film is connected to at least one of the pair of terminal portions through the through hole. Thereby, the heat generated from the light emitting element chip can be released from the terminal portion to the rail through the metal film. For this reason, it can suppress that heat is transmitted to a magnet and magnetic force falls.
The lighting device of the present invention further includes a heat dissipation member provided on an upper surface of the substrate, and a mounting substrate provided on the upper surface of the heat dissipation member and having the light emitting element chip, and the light emitting element. It is preferable that the chip is thermally connected to the heat radiating member via the mounting substrate, and a part of the heat radiating member is exposed from a side surface or a lower surface of the substrate. Thereby, since the heat generated from the light emitting element chip can be efficiently released to the outside, a decrease in the magnetic force of the magnet due to the heat can be suppressed.
The support includes a bottom portion provided with the pair of rails, and a pair of side portions provided at both ends of the bottom portion along the pair of rails, and the heat dissipation in the illuminator body. The member is preferably provided so as to cover the outside of the pair of side portions. Thereby, since it can suppress that the heat which generate | occur | produced from the light emitting element chip | tip is transmitted to a magnet, the magnetic force fall of a magnet can be suppressed.

  ADVANTAGE OF THE INVENTION According to this invention, a light source can be attached or detached, and a reliable illuminating device can be provided.

  Hereinafter, the best embodiment (hereinafter referred to as “embodiment”) of a semiconductor light emitting device according to the present invention will be described in detail.

  Moreover, this specification does not specify the member shown by the claim as the member of embodiment. The dimensions, materials, shapes, relative arrangements, and the like of the component parts described in the embodiments are not intended to limit the scope of the present invention only, unless otherwise specified, and are merely illustrative examples. Only. Note that the size, positional relationship, and the like of the members shown in each drawing may be exaggerated for clarity of explanation. Further, in the following description, the same name and reference sign indicate the same or the same members, and detailed description will be omitted as appropriate. Furthermore, each element constituting the present invention may be configured such that a plurality of elements are constituted by the same member and the plurality of elements are shared by one member, and conversely, the function of one member is constituted by a plurality of members. It can also be realized by sharing.

<First embodiment>
FIG. 1 is a schematic view schematically showing the illumination device according to the first embodiment. FIG. 2 is a schematic cross-sectional view taken along the line AA ′ of FIG. 1 schematically showing the lighting apparatus according to the first embodiment. FIG. 3 is a schematic view schematically showing a support in the lighting device according to the first embodiment. FIG. 4 is a schematic view schematically showing a luminaire main body in the illumination device according to the first embodiment. FIG. 5 is a schematic view schematically showing the lower surface of the illuminator main body in the illumination device according to the first embodiment. FIG. 6 is a schematic diagram schematically showing a modification of the illuminator main body in the illuminating device according to the first embodiment. FIG. 7 is a schematic cross-sectional view of the lighting apparatus according to the first embodiment when the lighting fixture main body of FIG. 6 is mounted on a support. FIG. 8 is a schematic view schematically showing a modification of the illuminator main body in the illumination device according to the first embodiment.

  The illumination device according to the first embodiment includes a support 1 provided with a pair of rails 2 made of a metal member to which a voltage can be applied, and further includes a light emitting element chip (not shown) and a light emitting element chip. Are provided on the upper surface side, at least one magnet 14 provided on the lower surface side of the substrate 18, and a pair of terminal portions 16 provided on the lower surface side of the substrate 18 and electrically connected to the light emitting element chip. And the illuminator main body 10 having the above. In particular, the support body 1 and the lighting device main body 10 are electrically connected to the pair of rails 2 by the magnet 14 being attracted to at least one of the pair of rails 2 by a magnetic force.

  In this embodiment, the support body 1 is formed in a shape extending in the longitudinal direction, and a pair of rails 2 are arranged on the bottom portion 1a of the support body by insert, bonding, or the like. Further, at both ends of the bottom portion 1a of the support, a pair of side portions 1b are formed along the pair of rails 2 so as to face each other. The pair of rails 2 can be electrically connected to a connector 100, a conductive wire 108, an external power source (not shown), and the like to form a pair of positive and negative electrodes.

  Moreover, the lighting fixture main body used as a light source has a light emitting element chip | tip. In the present embodiment, the light emitting element 13 using the light emitting element chip is placed on a mounting substrate 19 having a circuit pattern on the surface. The mounting substrate 19 is provided on the upper surface side of the substrate 18 and is fitted in a recess formed on the upper surface of the substrate 18. At this time, the upper surface of the mounting substrate 19 and the upper surface of the substrate 18 are preferably on substantially the same plane. As a result, the illuminator main body 10 can be thinned, and the light extraction efficiency can be improved because the light from the light emitting element chip is not blocked. At least one magnet 14 is provided on the lower surface side of the substrate 18. In the present embodiment, the magnet 14 is fixed by an adhesive or the like, but is preferably locked by a hook portion that can be formed on the lower surface of the substrate 18. Thereby, it is possible to prevent the magnet 14 from being detached from the substrate 18 due to the force applied when the support 1 and the lighting fixture body 10 are attached or detached, or the deterioration of the adhesive due to heat from the light emitting element chip or the like. it can. Further, a pair of terminal portions 16 are provided on the lower surface side of the substrate 18, and the pair of terminal portions 16 and the light emitting element chip are electrically connected. In addition, a pair of groove portions 20 that can be engaged with the pair of side portions 1 b formed on the support 1 are formed on the lower surface of the substrate 18. Thereby, the lighting fixture main body 10 can be mounted without shifting from the support 1. At this time, it is preferable that the pair of side portions 1b have different thicknesses, and the width of the pair of groove portions 20 is also formed to be the same width as the thickness of the pair of side portions 1b. Thereby, when attaching the lighting fixture main body 10 to the support body 1, an attachment direction can be guide | induced correctly.

With the above-described configuration, the lighting device according to the present embodiment is configured such that at least one of the pair of rails 2 included in the support 1 and the magnet 14 included in the lighting fixture body 10 are adsorbed by magnetic force, The tool body 10 is detachably fixed. At this time, the pair of rails 2 of the support body 1 and the pair of terminal portions 16 of the lighting fixture body 10 are electrically connected.
In the present embodiment, the pair of terminal portions 16 are electrically connected to the pair of rails 2 via the magnet 14. Thereby, an illuminating device can be further reduced in size. Furthermore, when attaching the lighting fixture main body 10 to the support body 1, it can prevent that the terminal part 16 and the rail 2 raise | generate a contact failure.

  Moreover, as shown to FIG. 6, FIG. 7, the illuminating device which concerns on this embodiment WHEREIN: A terminal part 16 and the magnet 14 are mutually independent of the lighting part main body 10 along the longitudinal direction of at least one rail 2. As shown in FIG. It may be arranged on the lower surface. At this time, it is preferable that the contact surface between the terminal portion 16 and the rail 2 is substantially on the same plane as the contact surface between the magnet 14 and the rail 2. Further, the magnet 14 is fixed by a hook portion 15 on the lower surface of the substrate 18. Further, as shown in FIG. 8, the terminal portion 16 may be disposed on the lower surface of the lighting fixture body 10 so as to be sandwiched between the plurality of magnets 14. As a result, the power feeding and adsorption functions can be separated, so that the influence on the magnetic force (such as a reduction in the adsorption force) due to the voltage applied to the magnet 14 can be suppressed. The terminal portion 16 may be an elastic member that can press the rail 2. Thereby, when attaching the lighting fixture main body 10 to the support body 1, it can prevent that the terminal part 16 and the rail 2 raise | generate a contact failure.

  As described above, the illumination device according to the first embodiment can be attached and detached with a light source, and can be a highly reliable illumination device. Furthermore, the lighting device can be downsized (particularly thinned).

  Hereinafter, each structure of embodiment which concerns on this invention is explained in full detail.

(substrate)
A board | substrate is a base of a lighting fixture main body, Comprising: A member for connecting each member directly or indirectly. In this embodiment, a light emitting element chip is provided on the upper surface side of the substrate, and at least a magnet and a terminal portion are provided on the lower surface side of the substrate. The shape of the substrate is not particularly limited because it can be appropriately changed according to the use of the lighting device, but is preferably substantially flat. Thereby, the illuminating device can be reduced in size (particularly thinned).

  In addition, the light emitting element chip and the terminal portion only need to be electrically connected, and there is no particular limitation on how to obtain electrical continuity. For example, it may be embedded in the substrate by insert molding or the like so that a part of the terminal portion provided on the lower surface side of the substrate is also exposed from the upper surface side of the substrate. In addition, the light emitting element chip and the terminal portion are electrically connected by providing a part of the terminal portion or another conductive member (for example, a metal film or a metal screw) in a through hole formed in the substrate. It is also possible to make it connectable.

In addition, a hook portion for locking the magnet can be formed on the lower surface of the substrate. The hook part only needs to be able to be locked by fitting a magnet. The hook part is bent in a U-shape, or the hook part is formed with a claw-like convex part. Various forms can be taken as desired. At this time, it is preferable that the hook portion has elasticity to such an extent that a magnet can be fitted. Thereby, since the clearance gap between a hook part and a magnet can be filled, a magnet can be fixed stably. Furthermore, it is preferable that the width between the tips of the hook portions with which the magnet is locked (the width of the attracting surface where the magnet is exposed) is substantially the same as the width of the rail provided on the support. Thereby, a hook part front-end | tip can prevent that a magnet slip | deviates from a rail and is adsorb | sucked. In addition, it is preferable that the width of the pair of rails provided on the support is made different from each other, and the width between the tips of the hook portions is set in accordance with the rail width. Thereby, when attaching a lighting fixture main body to a support body, an attachment direction can be guide | induced correctly.
A pedestal for providing a magnet can be formed on the lower surface of the substrate. At this time, the height of the pedestal is preferably formed such that the distance from the light emitting element chip to the magnet is 3 mm or more. Thereby, it can suppress that the magnetic force of a magnet falls with the heat | fever from a light emitting element chip | tip, and it can prevent that a lighting fixture main body will remove | deviate from a support body. In addition, the height of the pair of rails can be made different from each other, and a pair of pedestals having different heights can be formed so that the illuminator body is horizontal. Thereby, when attaching a lighting fixture main body to a support body, an attachment direction can be guide | induced correctly.

  The material used for such a substrate is not particularly limited, and examples thereof include glass epoxy, ceramics, liquid crystal polymer, polybutylene terephthalate (PBT) resin, polycarbonate (PC) resin, and ABS resin. Furthermore, in order to efficiently reflect light from the light emitting element chip, a white pigment such as titanium oxide can be mixed with a resin constituting the substrate.

(Light emitting element chip, light emitting element)
As the light emitting element chip, a light emitting diode (LED), a semiconductor laser element (LD), or the like can be used. These light emitting element chips have advantages such as excellent linearity of output with respect to input, excellent efficiency, long life and stable use. The kind of the light emitting element chip is not particularly limited, and it is preferable to use according to the usage as appropriate. In addition, as a light emitting element using a light emitting element chip, a light emitting element chip disposed on a lead frame is made of glass or a surface mount type (SMD) in which the light emitting element chip is disposed in a package formed of ceramic or resin. A shell type (lamp type) formed by molding with resin or the like can be suitably used. Furthermore, a wavelength conversion member made of a translucent resin such as an epoxy resin or a silicone resin containing a phosphor can be disposed around the light emitting element chip. Thereby, the wavelength of the light from the light emitting element chip is converted by the wavelength conversion member, and the mixed color light of the wavelength-converted light and the light from the light emitting element chip can be output. For example, white light can be obtained by combining a blue LED and a yellow phosphor such as YAG: Ce (YAG phosphor).
In the present embodiment, the light emitting element using the light emitting element chip is placed on a mounting substrate having a circuit pattern on the surface, but is not limited thereto. For example, the light emitting element chip can be directly mounted on the surface of the mounting substrate. As such a mounting substrate, a ceramic substrate, a glass epoxy substrate, an aluminum core substrate, or the like can be used. In addition, a plurality of light-emitting elements (or light-emitting element chips) placed on the mounting substrate can be appropriately used as desired, and can take various forms depending on a combination of colors and an arrangement state. For example, various types such as a dot matrix and a linear shape can be selected, and this makes it possible to provide a light source with extremely high mounting density and excellent heat dissipation.

(magnet)
The magnet is a member for detachably fixing the illuminator body and the support body by magnetic force. The type of such a magnet can be changed as appropriate according to the application, but preferably has a suction force that is such that it can be removed by the force of a human hand and the illuminator body does not fall from the support. . Specifically, an alnico magnet, a ferrite magnet, a neodymium magnet, or the like that is a permanent magnet is preferably used. Moreover, when supplying electric power to a light emitting element chip | tip via a magnet like this embodiment, it is necessary to use a conductive magnet.

(Terminal part)
The terminal portion is a conductive member that is electrically connected to the light emitting element chip and is arranged so that a voltage can be applied from the outside (for example, a rail provided on the support). In the present embodiment, the terminal portion is electrically connected to a conductive magnet, and the magnet is further electrically connected to the outside by contacting the rail of the support. In addition, when the terminal portion is brought into contact with the rail of the support to make an electrical connection, the terminal portion is preferably an elastic member that can be pressed against the rail. Specific examples include a spring (for example, a leaf spring, a coil spring, a bamboo spring, and the like). In particular, a plate material whose cross section is bent in an L shape can be preferably used. Thereby, electrical continuity between the terminal portion and the rail can be easily obtained.
Examples of the material used for such a terminal portion include iron, copper, nickel, tungsten, chromium, titanium, cobalt, molybdenum, and alloys thereof. Furthermore, the surface of the terminal can be subjected to silver plating that can keep electric resistance low, or smooth metal plating such as aluminum or gold.

(Support)
The support body has at least a pair of rails, and is a member for mounting the lighting fixture main body. The shape of the support is not particularly limited as long as at least a pair of rails can be insulated from each other. In the present embodiment, the support body includes a long bottom portion having a pair of rails and a pair of side portions formed at both ends along the longitudinal direction of the bottom portion. At this time, the cross-sectional shape of the support in the short direction has a U-shape. The support can be fixed to the outside using screws or the like. The material used for such a support is not particularly limited, and examples thereof include glass epoxy, ceramics, liquid crystal polymer, polybutylene terephthalate (PBT) resin, polycarbonate (PC) resin, and ABS resin.

In addition, the rail is used as a member for supplying power to or attracting the illuminator body. The shape of the rail is preferably a long plate or rod.
As a material used for such a rail, a material capable of adsorbing a magnet and having conductivity is preferable. For example, metal members, such as iron and nickel, are mentioned. Furthermore, the surface of the rail can be subjected to silver plating or a smooth metal plating such as copper, nickel, aluminum, or gold that can keep electric resistance low.

  As shown in FIGS. 9 and 10, the support 1 can also have a mechanism for preventing the illuminator body 10 from falling. That is, a hole or groove 21 is formed in the bottom 1a of the support body along the rail 2 provided on the support body. Furthermore, the through hole 22 is formed in the lighting fixture main body 10 from the upper surface side to the lower surface side, and the through hole 22 is disposed so as to face the hole or groove 21 formed in the support. Then, a fixing member 110 such as a screw is inserted from the upper surface side of the illuminator main body 10 so as to pass through the through hole 22 of the illuminator main body and the hole or groove 21 of the support. At this time, it is preferable that the diameter of the fixing member 110 is a diameter that rubs the inner wall of the hole or groove 21 of the support (the diameter of the fixing member 110 is larger than the diameter of the hole or groove 21 of the support). . Thereby, it can prevent that the lighting fixture main body 10 remove | deviates from the support body 1. FIG. Moreover, you may provide the scale for mounting | wearing the support body 1 or the rail 2 with the lighting fixture main body 10 with a suitable space | interval.

(connector)
The connector is a member for electrically connecting an external power source for applying a voltage and a rail included in the support.
As shown in FIGS. 11 and 12, the connector 100 includes a magnet 114 that is attracted to a rail of a support body, and a terminal portion 116 that is electrically connected to the magnet 114. Further, the terminal portion 116 is provided with a conductive wire 108 connected to an external power source. For this reason, by attaching the connector to the support, the magnet of the connector is attracted to the rail of the support and a voltage is applied to the rail of the support. However, the terminal part 116 and the magnet 114 can also be connected to the rail of the support body independently of each other. The connector can also be used to connect the rails of each support when a plurality of supports are used.
By using the connector as described above, it is not necessary to readjust the position and length of the wiring according to the use of the lighting device, and the support can be freely arranged.

  A general switching power supply can be used as the external power supply, and it is preferable to apply a DC voltage to the lighting device. Thereby, the circuit formed on the mounting substrate can be simplified. Furthermore, by setting the DC voltage to 50 V or less, it is possible to prevent an electric shock during work (when the lighting fixture body is attached or detached).

(Other parts)
In the present embodiment, an optical component such as a lens can be further provided on the upper surface of the illuminator main body in order to improve the luminance uniformity.
In addition, a diode bridge may be provided on the mounting substrate having the light emitting element chip. Thereby, a lighting fixture main body can be mounted on the support body regardless of the orientation of the positive electrode and the negative electrode.

<Second Embodiment>
The schematic of the illuminating device which concerns on 2nd embodiment is shown to FIG. FIG. 13 is a schematic view schematically showing the lower surface of the illuminator main body in the illumination device according to the second embodiment. FIG. 14 is a schematic view schematically showing a support in the lighting apparatus according to the second embodiment. FIG. 15 is a schematic cross-sectional view schematically showing the illumination device according to the second embodiment.
Moreover, the modification of the illuminating device which concerns on 2nd embodiment is shown in FIG.16 and FIG.17. FIG. 16 is a schematic cross-sectional view schematically showing a modification of the illumination device according to the second embodiment. FIG. 17 is a schematic view schematically showing the lower surface of the illuminator main body in a modification of the illumination device according to the second embodiment.

  In addition, the lighting device according to the second embodiment is substantially the same as the first embodiment except that the suction member is provided on the support body separately from the rails for power feeding and the arrangement thereof. It has the same structure. In addition, there is a part which abbreviate | omits description about the same structure (it is the same also in the following embodiments and Examples).

  The lighting device according to the second embodiment includes a support body provided with a pair of rails made of a metal member to which a voltage can be applied, and a suction member arranged to be insulated from the pair of rails. Furthermore, the light emitting element chip, the substrate on which the light emitting element chip is provided on the upper surface side, the magnet provided on the lower surface side of the substrate, and the light emitting element chip provided on the lower surface side of the substrate are electrically connected. A lighting fixture main body having a pair of terminal portions is provided. In particular, the pair of terminal portions are electrically connected to the pair of rails by attracting the magnet to the attracting member by magnetic force.

As shown in FIGS. 13 to 15, the suction member 17 provided on the support 1 has a plurality of suction members 17 arranged in a line along the longitudinal direction of the long support 1. Further, the plurality of suction members 17 arranged in a line are arranged so as to be sandwiched between the pair of rails 2. At this time, each arrangement of the magnet 14 and the terminal portion 16 of the illuminator main body is arranged so as to be able to face the adsorption member 17 of the support and the pair of rails 2, respectively. The magnet 14 is locked by a hook portion 15 formed on the base 11 on the lower surface of the substrate. Thereby, in addition to size reduction of an illuminating device, it can suppress that the heat from a light emitting element chip | tip transmits to the magnet 14. FIG.
Also, as shown in FIGS. 16 and 17, a plurality of suction members 17 may be arranged in a row so as to sandwich the pair of rails 2 therebetween. Further, the pair of terminal portions 16 is made of a plate material bent in an L shape, and is arranged so as to press the pair of rails 2. Thereby, a pair of terminal part 16 can be made to contact | abut to a pair of rail 2 stably.

In the present embodiment, a plurality of metal plates are used as the adsorption member, but a rail made of a metal member may be used. Thereby, attachment / detachment of a light source (illuminating tool main body) can be made still more flexible.
The material used for such an adsorbing member is not particularly limited as long as the magnet can be adsorbed, and examples thereof include iron and nickel. Furthermore, the surface of the adsorption member can be subjected to silver plating or smooth metal plating such as copper, nickel, aluminum, and gold.

  As described above, the illumination device according to the second embodiment can be attached to and detached from the light source, and can be a highly reliable illumination device. Furthermore, since the functions of power feeding and adsorption can be separated, it is possible to prevent a voltage from being applied to the magnet to affect the magnetic force. Further, the lighting device can be downsized.

<Third embodiment>
FIG. 18 is a schematic cross-sectional view schematically showing a lighting device according to the third embodiment.

  The light emitting device according to the third embodiment has a structure substantially similar to that of the first embodiment except that a heat dissipation member is provided on the lower surface of the mounting substrate.

The lighting device according to the third embodiment includes a support body 1 provided with a pair of rails 2 made of a metal member to which a voltage can be applied, and further, a light emitting element chip and the light emitting element chip on the upper surface side. A substrate 18 provided; at least one magnet 14 provided on the lower surface side of the substrate 18; and a pair of terminal portions 16 provided on the lower surface side of the substrate 18 and electrically connected to the light emitting element chip. The illuminator main body 10 is provided.
More specifically, the luminaire main body 10 includes a heat radiating member 30 provided on the upper surface of the substrate 18 and a mounting substrate 19 provided on the upper surface of the heat radiating member 30 and having a light emitting element chip. . The light emitting element chip is thermally connected to the heat dissipation member 30 via the mounting substrate 19, and a part of the heat dissipation member 30 is exposed from the side surface or the lower surface of the substrate. Thereby, the heat generated from the light emitting element chip can be efficiently released to the outside without entering the lighting fixture body.

The support body 1 has a bottom portion 1 a provided with a pair of rails 2, and a pair of side portions 1 b provided at both ends of the bottom portion 1 a along the pair of rails 2. At this time, it is preferable that the heat dissipating member 30 in the illuminator main body 10 is provided so as to cover the outside of the pair of side portions 1 b of the support 1. Thereby, since the heat generated from the light emitting element chip can be dissipated outside the lighting device, it is possible to suppress the heat from being transmitted to the magnet 14.
In the present embodiment, the bottom portion 1a of the support body can have the same configuration as that of the second embodiment by providing a suction member or the like separately from the pair of rails 2.

(Heat dissipation member)
The heat radiating member is a member for radiating heat generated from the light emitting element chip to the outside. The shape of the heat radiating member is not particularly limited, and examples thereof include a fin shape and a flat plate shape. In the case of using a flat plate-like heat radiating member, the illuminator body can be thinned, which is preferable.
In this embodiment, a flat plate-like heat radiating member is provided so as to cover the entire lower surface of the mounting substrate. Further, a part of the end portion of the heat dissipation member is exposed from the side surface of the substrate, and the exposed portion is provided by being bent toward the lower surface of the substrate. Thereby, the contact area of a heat radiating member and the exterior (air etc.) can be increased, without inhibiting thinning of a lighting fixture main body.
The material used for such a heat radiating member is not particularly limited as long as it is a metal material mainly composed of a metal having excellent thermal conductivity, and copper, aluminum, magnesium, or the like can be suitably used.

  As described above, the lighting device according to the third embodiment has the same effects as those of the first embodiment. Furthermore, the illuminating device according to the present embodiment can suppress the heat generated from the light emitting element chip from reducing the magnetic force of the magnet. Thereby, when using an illuminating device, it can prevent that a lighting fixture main body will remove | deviate from a support body. In addition, by having a heat radiating member as in this embodiment, for example, it is possible to mount a plurality of light emitting element chips having a large calorific value such as a maximum output of 1 W to 3 W.

<Fourth embodiment>
FIG. 19 is a schematic cross-sectional view schematically showing a lighting device according to the fourth embodiment.

  The light emitting device according to the fourth embodiment is the second except that the metal film is provided on the mounting surface of the light emitting element on the mounting substrate and the metal film is thermally connected to the terminal portion. The structure is substantially the same as that of the embodiment (particularly FIG. 15).

The illumination device according to the fourth embodiment includes a support 1 provided with a pair of rails 2 made of a metal member to which a voltage can be applied, and further, a light emitting element chip and the light emitting element chip on the upper surface side. A substrate 18 provided; at least one magnet 14 provided on the lower surface side of the substrate 18; and a pair of terminal portions 16 provided on the lower surface side of the substrate 18 and electrically connected to the light emitting element chip. The illuminator main body 10 is provided.
More specifically, the luminaire main body 10 includes a mounting substrate 19 on which the light emitting element 13 using the light emitting element chip is mounted, and a metal film 40 provided on the mounting surface of the light emitting element 13 on the mounting substrate 19. ,have. A through hole 22 is formed from the upper surface to the lower surface of the substrate 18, and the metal film 40 is connected to at least one of the pair of terminal portions 16 through the through hole. Thereby, the heat generated from the light emitting element chip can be sequentially released to the metal film 40, the terminal portion 16, and the rail 2.

The light emitting element chip can also be directly placed on the mounting substrate 19. Further, the light emitting element chip may be electrically connected to the metal film 40.
Further, a heat radiating member as shown in the third embodiment can be provided on the lower surface of the mounting substrate 19. At this time, the metal film 40 can be disposed insulated from the heat radiating member by forming a through hole having a diameter larger than the diameter of the through hole 22 formed in the substrate 18.

(Metal film)
The metal film is a member for transmitting heat generated mainly from the light emitting element chip or the like to the terminal portion.
Examples of the material used for such a metal film include copper, iron, tungsten, chromium, titanium, cobalt, molybdenum, and alloys thereof. Further, the outermost surface of the metal film formed on the mounting substrate is covered with a member having a high reflectance with respect to light from the light emitting element or the light emitting element chip to be placed, for example, gold, silver, aluminum, or the like. It is preferable.

  As described above, the illumination device according to the fourth embodiment has the same effects as those of the second embodiment. Furthermore, the illuminating device according to the present embodiment can suppress a decrease in the magnetic force of the magnet by suppressing the heat from being transmitted to the magnet. Thereby, when using an illuminating device, it can prevent that a lighting fixture main body will remove | deviate from a support body.

<Example 1>
Example 1 will be described using the lighting apparatus according to the first embodiment.

The first embodiment includes a support 1 having a pair of rails 2, and further includes at least a light emitting element 13 using a light emitting element chip, a pair of magnets 14, a pair of terminal portions 16, a mounting substrate 19 and a substrate 18. The illuminator main body 10 is provided.
The pair of rails 2 and the pair of terminal portions 16 are nickel (Ni), the light emitting element chip is a light emitting diode (LED), the magnet 14 is a ferrite magnet, the mounting substrate 19 is a glass epoxy substrate, and the support 1 and the substrate 18 are polycarbonate. (PC) resin is used.

  In the first embodiment, the support body 1 is composed of a long bottom portion 1a and a pair of side portions 1b formed at both ends of the bottom portion 1a along the longitudinal direction. The pair of side portions 1b are formed with different thicknesses. A pair of rails 2 are insulated from each other and fixed to the bottom 1a of the support with an adhesive. Further, a connector 100 electrically connected to an external power source (not shown) by a conductive wire 108 is attached to the support 1, and the pair of rails 2 serve as a pair of positive and negative electrodes. In addition, the support 1 is provided with a screw hole (and a screw) 110 for fixing the support 1 to the outside at the bottom 1a.

  In the illuminator body, a light emitting element chip is provided on the upper surface side of the substrate 18, and a pair of magnets 14 and a pair of terminal portions 16 are provided on the lower surface of the substrate 18. Specifically, the light emitting element chip is used together with a YAG phosphor, and is mounted on the mounting substrate 19 as the light emitting element 13 capable of emitting white light. The mounting substrate 19 is fitted into a recess formed on the upper surface of the substrate 18. The pair of magnets 14 are fixed to the lower surface of the substrate 18 with an adhesive, and each is electrically connected to the pair of terminal portions 16. Further, a part of the terminal portion 16 provided on the lower surface of the substrate 18 is electrically connected to a mounting substrate 19 on the upper surface side of the substrate through a through hole formed in the substrate 18.

  The rail 2 of the support body and the magnet 14 of the lighting fixture body are arranged so as to face each other. When the lighting fixture body 10 is mounted on the support body 1, the pair of magnets 14 are magnetically coupled to the pair of rails. 2 is adsorbed. At this time, the pair of terminal portions 16 are electrically connected to the pair of rails 2 via the pair of magnets 14.

  As described above, the lighting device according to Example 1 can obtain the same effects as those of the first embodiment. As an application of the lighting apparatus according to the first embodiment, it can be used as an internal lamp such as a signboard or a channel letter in addition to general lighting. In particular, the internal lamp is preferably used because the quantity and position (luminance and density of the light source) of the light source can be easily changed even after a signboard, a channel letter, or the like is installed.

  In addition to the above-described applications, the lighting device of the present invention can also be used for decoration lighting, illumination lighting, and the like for decorating a space.

It is the schematic which shows typically the illuminating device which concerns on 1st embodiment. It is a schematic sectional drawing in the AA 'line of FIG. 1 which shows typically the illuminating device which concerns on 1st embodiment. It is the schematic which shows a support body typically in the illuminating device which concerns on 1st embodiment. It is the schematic which shows typically a lighting fixture main body in the illuminating device which concerns on 1st embodiment. It is the schematic which shows typically the lower surface of a lighting fixture main body in the illuminating device which concerns on 1st embodiment. It is the schematic which shows typically the modification of a lighting fixture main body in the illuminating device which concerns on 1st embodiment. It is a schematic sectional drawing at the time of mounting | wearing a support body with the lighting fixture main body of FIG. 6 in the illuminating device which concerns on 1st embodiment. It is the schematic which shows typically the modification of a lighting fixture main body in the illuminating device which concerns on 1st embodiment. It is the schematic which shows typically the modification of a support body in the illuminating device which concerns on 1st embodiment. It is the schematic which shows typically the modification at the time of mounting | wearing a lighting fixture main body with the support body of FIG. 9 in the illuminating device which concerns on 1st embodiment. It is the schematic which shows typically the upper surface of a connector in the illuminating device which concerns on 1st embodiment. It is the schematic which shows typically the lower surface of a connector in the illuminating device which concerns on 1st embodiment. It is the schematic which shows typically the lower surface of a lighting fixture main body in the illuminating device which concerns on 2nd embodiment. It is the schematic which shows a support body typically in the illuminating device which concerns on 2nd embodiment. It is a schematic sectional drawing which shows typically the illuminating device which concerns on 2nd embodiment. It is a schematic sectional drawing which shows typically the modification of the illuminating device which concerns on 2nd embodiment. In the modification of the illuminating device which concerns on 2nd embodiment, it is the schematic which shows typically the lower surface of a lighting fixture main body. It is a schematic sectional drawing which shows typically the illuminating device which concerns on 3rd embodiment. It is a schematic sectional drawing which shows typically the illuminating device which concerns on 4th embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 1a, 1b Support body 2 Rail 11 Base 13 Light emitting element 14, 114 Magnet 15 Hook part 16, 116 Terminal part 17 Adsorption member 18 Substrate 19 Mounting substrate 20, 21, 120 Groove part 22 Through-hole 30 Heat radiation member 40 Metal film 100 connector 108 conductive wire 110 fixing member (screw)

Claims (6)

A support provided with a pair of rails made of a metal member capable of applying a voltage;
A light emitting element chip; a substrate on which the light emitting element chip is provided on an upper surface side; at least one magnet provided on a lower surface side of the substrate; and a light emitting element chip provided electrically on the lower surface side of the substrate. A lighting fixture body having a pair of connected terminal portions;
Comprising
The support body and the illuminator main body are configured such that the magnet is attracted to at least one of the pair of rails by a magnetic force, whereby the pair of terminal portions are electrically connected to the pair of rails, and At least one of the pair of terminal portions is electrically connected to at least one of the pair of rails via the magnet;
Furthermore, the heat dissipation member provided on the upper surface of the substrate, and a mounting substrate provided on the upper surface of the heat dissipation member and having the light emitting element chip,
The light emitting element chip is thermally connected to the heat dissipation member via the mounting substrate,
An end of the heat radiating member is bent toward the lower surface of the substrate so as to cover the side surface of the substrate, and is exposed from the side surface of the substrate . The support includes a bottom portion provided with the pair of rails, and a pair of side portions provided at both ends of the bottom portion along the pair of rails,
The lighting device according to claim 1 , wherein the heat dissipating member in the illuminator main body is provided so as to cover an outer side than the pair of side portions. The support includes a bottom portion provided with the pair of rails, and a pair of side portions provided at both ends of the bottom portion along the pair of rails,
The lighting fixture main body has a pair of grooves that can be fitted to the pair of side portions, formed on the lower surface of the substrate,
The thickness of the pair of side portions is different from each other;
It said pair of grooves, the lighting device according to claim 1 or 2, characterized in that it is formed in the same width as the thickness of the pair of side portions. The lighting device according to any one of claims 1 to 3 , wherein the pair of terminal portions are elastic members. The magnet, the lighting device according to any one of claims 1 to 4, characterized in that is engaged by the hook portion provided on the lower surface of the substrate. The lighting device as claimed in any one of claims 1 to 5, further comprising: a mounting substrate where the light emitting elements are mounted with the light emitting element chip, the mounting surface of the light emitting element in said mounting board A provided metal film,
Through holes are formed from the upper surface to the lower surface of the substrate, and the metal film is connected to at least one of the pair of terminal portions through the through holes.

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