JP2011243365A - Lamp with base, socket device, and lighting fixture - Google Patents

Abstract

Provided are a lamp with a base, a socket device, and a lighting fixture capable of securely mounting a lamp and capable of performing an effective heat radiation action.
A lamp main body 11 made of a heat conductive member; a light emitting unit 12 disposed in the lamp main body; a lighting device 13 disposed in the lamp main body for lighting the light emitting unit; and connected to the lighting device. The base-equipped lamp 10 is composed of the base member 14. When the base member is electrically connected to the socket device 20, the lamp can be securely mounted by the coupling means 15 that couples the lamp body to the socket device by magnetic force.
[Selection] Figure 1

Description

  The present invention relates to a lamp with a cap, a socket device, and a lighting fixture with improved electrical connection and heat dissipation configuration.

  Conventionally, a compact fluorescent lamp having a flat and thin structure suitable for a narrow space such as a lighting for a showcase or a shelf light has been used. This type of compact fluorescent lamp can be attached to and detached from a socket device directly attached to the ceiling surface as shown in, for example, Patent Document 1, especially paragraph numbers [0035] and [0056] and FIGS. When the cap pin is inserted into the power supply port of the socket device and rotated in a predetermined direction, the cap pin is electrically connected to the connection fitting of the socket device and mechanically held. As the base pin, a pin type GX53 type base is used so as not to disturb the thin structure (see paragraph [0037]).

JP 2007-180011 A JP 2010-056059 A

  However, in the compact fluorescent lamp shown in Patent Document 1, by rotating the lamp in a predetermined direction, the base pin is electrically connected to the connection fitting of the socket device and mechanically held. Even in a slightly rotated state, electrical connection is made first. For this reason, when the lamp is mounted while power is supplied to the socket device, the lamp is lit before it is completely held mechanically. There is a case where the mounting operation is terminated without completely holding. For this reason, there exists a possibility that a lamp | ramp may be in a half-hanging state with respect to a socket apparatus, and the lamp | ramp with a nozzle | cap | die which can be mounted | worn more reliably is desired.

  On the other hand, this type of lamp with a cap needs to dissipate heat generated from the arc tube and the lighting device in order to improve the luminous efficiency of the arc tube (Patent Document 1, paragraph [0003]). reference). In particular, in recent years, for example, in Patent Document 2, particularly paragraphs [0002] and [0004], in lamps with caps and lighting fixtures using light-emitting diodes having a long life and low power consumption instead of filament light bulbs, for example, As shown, in order to improve the light emission efficiency of the light emitting diode, how to dissipate heat generated from the light emitting diode and the lighting device is an important issue.

  However, these lamps with caps are mainly radiated by natural air cooling by forming the main body of aluminum having good thermal conductivity and further forming heat radiating fins. For this reason, since the heat dissipation performance is determined by the surface area and shape of the lamp and fixture, in order to obtain a larger amount of light, it is necessary to have a heat dissipation area to accommodate it, and miniaturization of the lamp and fixture can be achieved. It becomes increasingly difficult.

  The present invention has been made in view of the above problems, and intends to provide a lamp with a base, a socket device, and a lighting fixture that can securely mount a lamp and can perform an effective heat dissipation action. Is.

  An invention of a lamp with a cap according to claim 1 includes: a lamp main body made of a heat conductive member; a light emitting unit disposed in the lamp main body; a lighting device disposed in the lamp main body for lighting the light emitting unit; A base member connected to the lighting device; and coupling means for coupling the lamp body to the socket device by magnetic force when the base member is electrically connected to the socket device. According to the present invention, at the time of electrical connection of the base member to the socket device, the coupling means for coupling the lamp body to the socket device by magnetic force enables the lamp to be securely mounted and effective heat dissipation. Possible cap-type lamps can be constructed.

  In the present invention, it is preferable that the lamp with cap is a flat and thin structure lamp using a cap of the GX53 type, but the lamp has a lamp-shaped cap with a shape approximate to that of a general incandescent lamp. It can also be configured in a lamp shape such as a lamp (A-type or PS-type), a ball-type lamp with a base (G-type), a cylindrical lamp with a base (T-type), or a ref-type lamp with a base (R-type). Good. The present invention can be applied not only to a lamp with a flat and thin structure and a lamp with a cap approximated to a lamp shape of a general incandescent lamp, but also to a lamp with a cap having various other external shapes and uses. Note that the lamp with cap is preferably provided with a cover member made of a glove, a protective cover or the like in order to diffuse light or protect the light emitting part, but it is necessary to achieve the object of the present invention. For example, a globeless lamp with a base may be configured instead of the conditions.

  The lamp body includes at least one of metals having good thermal conductivity, for example, aluminum (Al), copper (Cu), iron (Fe), and nickel (Ni), in order to enhance heat dissipation of the light emitting unit and the lighting device. Although it is preferable to form with a metal, you may comprise in addition to this, industrial materials, such as ceramics which consist of aluminum nitride (AlN), etc., silicon carbide (SiC). Furthermore, you may comprise with synthetic resins, such as high heat conductive resin. The outer shape is preferably configured so that the flat surface is substantially circular and has a dish shape in order to form a flat thin lamp with a base, but the flat surface is a polygonal shape such as a triangle, quadrangle, hexagon, etc. May have an elliptical shape or the like. In addition, a large number of radiating fins, radiating pins, and the like that protrude radially may be integrally formed on the outer peripheral surface of the lamp body in order to further improve the radiating performance. Furthermore, the outer surface portion exposed to the outside may be formed, for example, in an uneven or satin shape to increase the surface area, or may be subjected to white coating or white alumite treatment to increase the thermal emissivity of the outer surface portion. In addition, when white paint or white anodized treatment is applied, when the lamp with cap is attached to a lighting fixture and lit, the reflectance of the external surface of the lamp body exposed to the outside becomes high, and the efficiency of the fixture can be increased. In addition, the appearance and the design are good, and the merchantability can be improved.

  The light emitting unit is preferably composed of a solid state light emitting device using a light emitting diode, a semiconductor laser, an organic EL or the like as a light source, but is a discharge lamp such as a fluorescent lamp formed in a flat shape by meandering the light emitting tube. It may be configured. The light emitting unit is preferably configured to emit white light, but may be configured to be red, blue, green, or a combination of various colors depending on the use of the lighting fixture. In addition, the shape of the light emitting part may be a plate-like circle, a polygon such as a triangle, a quadrangle, a hexagon, or an ellipse to form a point or surface module. All shapes to obtain the light distribution characteristics are acceptable.

  When the lighting device for lighting the light emitting unit is configured by a solid light emitting element, for example, a lighting circuit that converts an AC voltage of 100 V to a DC voltage of 24 V and supplies a constant DC current to the light emitting element is configured. Permissible. Further, the lighting device may have a light control circuit, a color control circuit, and the like for dimming the solid state light emitting device. In the case of a discharge lamp such as a fluorescent lamp, for example, one constituted by a ballast that is an inverter circuit is allowed, and may have a light control circuit or the like in the same manner as described above.

  The base member connected to the lighting device is preferably a GX53 type base in order to form a flat thin lamp with a base, but a pin-type terminal used for a fluorescent lamp is used. It may be a base having an L-shaped terminal used for hook sealing, and is not limited to a specific base.

  The coupling means for coupling the lamp body to the socket device by magnetic force avoids the half-hanging state by adsorbing by the magnetic force when the base member is electrically connected to the socket device, or the lamp body and the socket even in the half-hanging state. The device is adsorbed and coupled, and the lamp with cap is securely attached to the socket device, and the lamp body and the socket device are thermally coupled to generate heat generated by the lamp with cap through the socket device. As the coupling means, for example, a neodymium-based, ferrite-based, alnico-based, or the like, and a magnet having an attractive force of about 3N or more (for example, 20N to 30N), iron ( It is allowed to be composed of a ferromagnetic material such as Fe) or nickel (Ni). It is preferable that at least two of these magnets and magnetic bodies are installed. However, a single lamp may be used as long as sufficient coupling can be obtained with a smaller lamp or the like.

  The magnet and magnetic body may be provided in the socket device and the magnetic body may be provided in the lamp body, or conversely, the magnet may be provided in the lamp body and the magnetic body may be provided in the socket device. Further, the magnetic body is not particularly configured. For example, the base member may be composed of a magnetic material having conductivity such as nickel, and the both may be coupled by a magnet provided in the socket device. In short, all means capable of coupling the lamp body to the socket device by magnetic force when the base member is electrically connected to the socket device are allowed. In addition, it is preferable that the base member is mechanically held at the same time when the base member is electrically connected to the socket device, but here, it is not a necessary condition that the base member is mechanically held at the same time. You may make it carry out only by a means.

  Further, it is preferable that the magnet and the magnetic body constituting the coupling means are arranged apart from each other when the base member and the socket device are not attached, and are attracted to each other by magnetic force at the time of attachment. However, it may be configured such that a part of the bag is wrapped and the suction is immediately performed by a small mounting operation. Further, the cap member, that is, the lamp with cap, is preferably mounted on the socket device by a predetermined rotation operation, but may be mounted by a slide operation or the like in the vertical and horizontal directions. The operation means for mounting is not limited to the specified one.

  The invention of the socket device according to claim 2 includes: a socket body made of a heat conductive member; a connection member to which a base member of a lamp with a base is electrically connected; and an electrical connection of the connection member to the lamp with a base; And a coupling means for coupling the socket body to the lamp with cap by magnetic force. According to the present invention, at the time of electrical connection of the connecting member to the lamp with cap, the lamp can be securely mounted by the coupling means for coupling the socket body to the lamp with cap by magnetic force, and an effective heat dissipation action is performed. It is possible to configure a socket device that can be used.

  In the present invention, the socket device may be an independent socket device, such as a spotlight, which is an independent socket device in which a lamp with a base can be attached to a single socket device to constitute a lighting fixture. Even if it is a built-in type socket device such as a light, a socket device is attached to a fixture body or a reflector, and a lamp with a cap is attached to the socket device incorporated in the fixture to constitute a lighting fixture. Good.

  The socket body made of a heat conductive member is allowed to have the same material, appearance shape, and heat dissipation performance as described in the lamp body of the lamp with cap described above. For example, the lamp body is made of aluminum, whereas the socket body is made of ceramics, or the lamp body has a circular planar shape, and the socket body is made of aluminum. May be configured as a rectangle, the lamp body may be subjected to white alumite treatment, and the socket body may be configured without alumite treatment.

  The connection member to which the cap member of the lamp with cap is electrically connected is a member for supplying commercial power to the lamp with cap when the cap member is electrically connected, and has a certain rigidity and spring property. It is allowed to be composed of a terminal plate made of a metal having good conductivity and, for example, copper, brass, phosphor bronze or the like. In addition, it is preferable that the connecting member is mechanically held at the same time when the connecting member is electrically connected to the lamp with the cap, but here, like the cap member, it is not a necessary condition that the mechanical member is held at the same time. The general holding may be performed only by a coupling means using magnetic force.

  The coupling means for coupling the socket body to the lamp with cap by magnetic force is allowed to be configured in the same manner as described as the coupling means for coupling the lamp body to the socket device by magnetic force.

  The invention of the lighting fixture according to claim 3 comprises the lamp with the cap according to claim 1; and the socket device according to claim 2. ADVANTAGE OF THE INVENTION According to this invention, while being able to mount | wear with a lamp | ramp reliably, the lighting fixture which can perform an effective thermal radiation effect | action can be comprised.

  In the present invention, the lighting fixture is allowed to be a ceiling-embedded type, a direct-attached type, a suspended type, or a wall-mounted type, and a glove, shade, reflector, etc. can be attached to the fixture body as a light control body. Even if it exists, the lamp | ramp with a nozzle | cap | die used as a light source may be exposed. Moreover, not only what attached the lamp | ramp with one nozzle | cap | die to the instrument main body, A plurality may be arrange | positioned. Furthermore, you may comprise large luminaires for facilities and business, such as offices.

  According to the first aspect of the present invention, when the base member is electrically connected to the socket device, the lamp body can be securely mounted by the coupling means for coupling the lamp body to the socket device by magnetic force, and effective heat dissipation can be achieved. It is possible to provide a lamp with a cap capable of performing an action.

  According to the second aspect of the present invention, when the connecting member is electrically connected to the lamp with the cap, the lamp can be securely mounted by the coupling means for coupling the socket body to the lamp with the cap by magnetic force, and it is effective. It is possible to provide a socket device capable of performing a sufficient heat dissipation action.

  According to the third aspect of the present invention, since the lamp with the cap according to the first aspect and the socket device according to the second aspect are provided, the lamp can be securely mounted and effective. It is possible to provide a luminaire capable of performing a sufficient heat dissipation action.

The cross-sectional perspective view which follows the aa line | wire of Fig.2 (a) which shows the lamp | ramp with a nozzle | cap | die which is embodiment of this invention, and a socket apparatus. The lamp | ramp with a nozzle | cap | die is similarly shown, (a) is a top view which removes and shows a cover member, (b) is a cross-sectional perspective view which follows the bb line | wire of (a) figure. The socket apparatus is similarly shown, (a) is a top view, (b) is a longitudinal sectional view along line bb in (a), and (c) is a perspective view showing a connecting member. The state with which a lamp | ramp with a nozzle | cap | die is similarly mounted | worn with a socket apparatus is shown, (a) is a top view of a socket apparatus, (b) is a bottom view of a lamp | ramp with a nozzle | cap | die. Similarly, the longitudinal cross-sectional view which shows the state which installed the lighting fixture which mounted | wore the lamp | ramp with a cap with the socket apparatus on the ceiling surface. The perspective view which shows the state which similarly mounts a lamp | ramp with a nozzle | cap | die on a socket apparatus. The cross-sectional perspective view which shows the state which similarly mounted | wore the lamp | ramp with a cap with the socket apparatus. The modification with the coupling | bonding means in a lamp | ramp with a base and a socket apparatus similarly is shown, (a) is a top view shown in cross section, (b) is a perspective view which shows the state which the base member adsorb | sucked to the magnet.

  Hereinafter, embodiments of a lamp with a cap, a socket device, and a lighting fixture according to the present invention will be described.

  First, the configuration of the lamp with cap is described. The lamp with a base of this embodiment constitutes a flat and thin lamp 10 with a base having a base member of the GX53 type. The lamp body 11 is made of a heat conductive member, and is disposed in the lamp body. The light emitting unit 12, the lighting device 13 that is disposed in the lamp main body and lights the light emitting unit, the base member 14 connected to the lighting device, and the base member is electrically connected to the socket device 20. And a cover member 16 provided on the lamp body so as to cover the light emitting unit 12.

  As shown in FIG. 1 and FIG. 2, the lamp body 11 is a dish having a substantially circular planar shape in cross section made of a metal having good thermal conductivity to increase heat dissipation, in this embodiment, aluminum. In the opening 11a on the one end side, a substrate support portion 11b made of a circular concave step is integrally formed. The substrate support portion is formed such that the bottom surface of the concave step portion is a flat surface, and a convex strip portion 11c having a ring shape is integrally formed around the substrate support portion. Further, the other end of the lamp body 11 is integrally formed with a recessed fitting portion 11e protruding so that an annular support step portion 11d is formed on the outer bottom surface. Further, a large number of radiation fins 11 f are integrally formed radially on the outer peripheral surface of the lamp body 11. The lamp body 11 having these configurations is processed by, for example, casting, forging, cutting, or the like.

  The light emitting unit 12 includes a solid light emitting element 12a and a substrate 12b on which the solid light emitting element is mounted. The solid light emitting element 12a is configured by a light emitting diode (hereinafter referred to as “LED”) in the present embodiment, and is configured by six SMD type LEDs in the present embodiment. The LED may be a so-called COB type that emits white light (including daylight white, daylight color, and light bulb color) with a plurality of LED chips and a phosphor excited by the LED chips.

  The substrate 12b is made of a metal having a good thermal conductivity, which is a flat thin aluminum plate in this embodiment, and an electric insulating layer such as a silicone resin is provided on the surface (the upper surface in FIG. 1). A wiring pattern made of copper foil is formed on the wiring pattern, and the six LEDs 12a are mounted on the wiring pattern at substantially equal intervals so as to form a substantially concentric circle (FIG. 2A). As a result, the light emitting unit 12 including the light emitting module is configured in which the six LEDs 12a are arranged substantially symmetrically on the circular and plate-like substrate 12b.

  The light emitting section 12 configured as described above is disposed so as to be electrically insulated and in close contact with the substrate support section 11b formed on one end of the main body 11, and may be made of silicone resin or the like as necessary. It is fixed in close contact with the bottom surface of the substrate support portion 11b having a flat surface using a fixing means 12c such as a screw via a configured electric insulating sheet or the like (not shown).

  As a result, the light emitting unit 12 is disposed on one end side in the lamp body 11, and the back surface of the substrate 12b is securely adhered to the substrate support portion 11b of the lamp body 11, so that the substrate 12b has good thermal conductivity. Coupled with being made of aluminum, the heat generated from the LED 12a can be effectively transmitted to the lamp body 11 made of aluminum and dissipated. With the above configuration, the optical axis yy of the light emitting unit 12 including the substrate 12b on which the six LEDs 12a are mounted substantially coincides with the central axis xx of the lamp body 11, and as a whole, a substantially circular light emitting surface in a top view. Is formed.

  As shown in FIG. 1, a lighting device 13 disposed in the lamp body 11 for lighting the light emitting unit 12 is a circular flat glass epoxy circuit board on which circuit components constituting the lighting circuit of each LED 12a are mounted. 13a. The lighting circuit is configured to convert the AC voltage 100V into a DC voltage 24V and supply a constant DC current to each LED 12a. A circuit pattern is formed on one or both surfaces of the circuit board 13a, and a plurality of small sizes for constituting a lighting circuit such as a lead component such as an electrolytic capacitor 13b1 and a current transformer 13b2 and a chip component such as a switching transistor 13b3 on the mounting surface. The electronic component 13b is mounted and disposed in the lamp body 11 described above.

  These electronic components 13b are arranged in the lamp body 11 as follows. That is, a part that generates heat, for example, the switching transistor 13b3 is housed in a state of being separated from the circuit board 13a by a lead wire and in close contact with the bottom surface of the lamp body 11. A relatively large lead component, for example, the current transformer 13b2 is accommodated in the recessed fitting portion 11e in the lamp body. Thereby, the heat of the switching transistor 13b3 accompanied by heat generation is radiated to the outside from the lamp body 11 made of aluminum, and the temperature rise is suppressed. At the same time, a large part is accommodated in the recessed fitting portion 11e, and the flat thin structure of the lamp body 11 is formed.

  The circuit board 13a of the lighting device 13 configured as described above includes a light emitting unit 12 in the lamp main body 11 via a support leg 13d made of a synthetic resin having electrical insulation, which is PBT (polybutylene terephthalate) in this embodiment. Is supported below the substrate 12b and at a predetermined distance from the bottom surface of the lamp body 11. In the figure, reference numeral 17 denotes a heat shield plate, which is formed of a heat-resistant and electrically insulating resin such as PBT and is made of a heat-insulating synthetic resin in a disc shape, and has a gap at the center of the upper surface of the circuit board 13a. By interposing between the substrate 12b of the light emitting unit 12 and the circuit board 13a, the thermal effects between the substrate 12b and the circuit board 13a are blocked. Thereby, the board | substrate 12b and the circuit board 13a are interrupted | blocked thermally, and the electronic component 13b of the circuit board 13a is comprised so that it may not receive the influence of the heat which generate | occur | produces from LED12a directly. In addition, the output terminal of the circuit board 13a which comprises the lighting device 13 and the input terminal of the board | substrate 12a of the light emission part 12 are connected by a lead wire (not shown).

  As shown in FIG. 2B, the base member 14 is made of a conductive metal such as copper or brass, and is configured by a pair of base pins of the GX53 type having a shaft portion 14a and a plug portion 14b protruding from the shaft portion 14a. . The cap pin is embedded and supported by resin molding integrally on a support substrate 14c formed in a disc shape with a heat-resistant and electrically insulating synthetic resin such as PBT. A pair of support substrates 14c in which the cap pins are integrally embedded are prepared, and a pair of circular substrates formed in a diametrically opposed manner on the bottom surface of the lamp body 11, in other words, the annular support step portion 11d. Each is fitted into the support hole 11d1 and fixed with an adhesive made of silicone resin, epoxy resin, or the like. A pair of plug portions 14b of the base member 14 are provided so as to protrude outward from the outer bottom surface of the lamp body 11, and each shaft portion 14a is electrically connected to the input terminal of the circuit board 13a of the lighting device 13 and the lead wire w1. Connected to. As a result, power is introduced from the base member 14 and supplied to the lighting device 13, and the output of the lighting device is supplied to the light emitting unit 12.

  Next, when the base member 14 is electrically connected to the socket device 20, the coupling means 15 that couples the lamp body 11 to the socket device 20 by magnetic force is, for example, a kind of neodymium-based, ferrite-based, alnico-based, etc. It is composed of a magnet having an attractive force of about 3N or more (for example, 20N to 30N) and a ferromagnetic material such as iron (Fe) or nickel (Ni). In this embodiment, the magnetic material 15a made of iron (Fe) is a lamp. A magnet 15b is provided on the socket device 20 which will be described later. As for the magnetic body 15a, a pair of two thin circular iron plates having the same shape is prepared, and as shown in FIGS. 1 and 4B, a base member 14 is provided on an annular support step portion 11d of the lamp body 11. Are fitted in a pair of circular support recesses 11d2 formed to face each other in the diameter direction substantially orthogonal to the position, and are fixed with an adhesive made of silicone resin, epoxy resin, or the like, and a countersunk screw that does not protrude from the surface. .

  As shown in FIG. 1, the cover member 16 constitutes a lamp glove, is made of translucent milky white glass, and is formed into a flat curved surface having an opening 16a on one end side. ing. The edge surrounding the opening 16a is a cylindrical side wall 16b, and the front surface facing the opening is formed in a smooth curved surface. The cover member 16 configured as described above is provided so as to cover the light emitting portion 12 of the lamp main body 11, and the opening 16 a has a predetermined overlap margin on the inner surface of the protruding portion 11 c on one end side of the lamp main body 11. Then, they are fitted and fixed using an adhesive such as silicone resin or epoxy resin. As described above, the lamp body 10 having a flat thin structure in which the light emitting portion 12 including the cover member 16 and the LED 12a is provided on one end side of the lamp body 11 and the base member 14 of the GX53 type is provided on the other end side is configured. Is done.

  Next, the configuration of the socket device will be described. The socket device of the present embodiment constitutes a socket device that is used by being connected to the base member 14 of the GX53 type and being incorporated in the lighting fixture 30. The socket device 20 is shown in FIGS. As shown, the socket body 21 made of a heat conductive member, the connection member 22 to which the base member 14 of the lamp with cap 10 is electrically connected, and the socket body with the magnetic force when the connection member is electrically connected to the lamp with cap. The connecting means 15 is connected to the lamp with cap.

  As with the lamp body 11, the socket body 21 is a metal having good thermal conductivity in order to enhance heat dissipation, and in this embodiment, the plane shape of the cross section made of aluminum is substantially circular and penetrates through the center. It is formed in a ring shape having a support hole 21a. The diameter d1 of the support hole 21a is formed to be slightly larger than the diameter d2 of the projecting portion of the support step portion 11d of the lamp body 11, in other words, the outer peripheral surface of the recessed fitting portion 11e (d1> d2). Moreover, the depth dimension h1 of the support hole 21a is formed to be slightly smaller than the height dimension h2 of the support step portion 11d of the lamp body 11 (h1 <h2), and the recessed fitting portion 11e from which the lamp body 11 protrudes is formed. When inserted into the support hole 21a, the outer bottom surface of the recessed fitting portion 11e protrudes by a slight dimension t1 (FIGS. 5 and 7) while the lower surface of the socket body 21 is in close contact with the upper surface of the support step portion 11d. Configure as follows. The socket body 21 having these configurations is processed by, for example, casting, forging, cutting, or the like, similarly to the lamp body 11.

  When the cap member of the lamp with cap is electrically connected, the connection member 22 contacts the pair of cap members 14 in the GX53 format of the cap with lamp 10 to supply commercial power to the lamp with cap 10. A terminal plate 22a having a certain rigidity and spring property, and having a spring property folded into a "<" shape made of a metal having good rigidity and good conductivity, such as copper, brass, phosphor bronze, etc. Constitute.

  As shown in FIG. 3 (c), the terminal plate 22a is housed and supported in an engagement hole 22c of a support body 22b formed of a heat-resistant and electrically insulating synthetic resin such as PBT in a square pole. Is done. The engagement hole 22c is formed from a so-called "Dalma hole" which is composed of a locking hole 22c1 formed of a long hole having an arc shape and an insertion hole 22c2 formed of a circular hole formed continuously at one end of the locking hole. Become. The diameter dimension of the insertion hole 22c2 is formed larger than the diameter dimension of the plug portion 14b projecting from the cap member 14 of the lamp with cap 10. The width dimension of the long hole of the locking hole 22c1 is the diameter dimension of the plug portion 14b. Form smaller. As a result, the plug portion 14b of the base member 14 is inserted from the insertion hole 22c2 and moved to the locking hole 22c1, so that the plug portion 14b comes into contact with the terminal plate 22a accommodated in the engagement hole 22 and is electrically connected. The plug portion 14b is locked to the back surface side of the locking hole 22c1, which is a long hole, and is prevented from coming off from the engaging hole 22c of the plug portion 14b and is mechanically held.

  As described above, two pairs of support bodies 22b accommodating the terminal plate 22a, which is the connection member 22, are prepared, and are opposed to the surface of the socket body 21 in the diametrical direction as shown in FIG. Are fitted into a pair of square support holes 21d1 and fixed with an adhesive made of silicone resin, epoxy resin, or the like. In this state, the engagement hole 22c made of a dharma hole is arranged so as to be point-symmetric with respect to the center point a of the socket body 21 having a ring shape. As a result, as shown in FIG. 4, the plug portion 14b of the base member 14 is inserted from the insertion hole 22c2 and moved to the locking hole 22c1, that is, the angle α1 about the center point a of the socket body 21 is shown. By turning in the direction of the middle arrow, the plug portion 14b of the base member 14 comes into contact with the terminal plate 22a, and further contacts over the protruding portion of the "<" shape of the terminal plate to make electrical connection. At the same time, the plug portion 14b is locked and mechanically held on the back side of the locking hole 22c1 formed of a long hole.

  And the terminal board 22a of a connection member is connected to a commercial power supply by F cable w2 wired indoors, and the nozzle | cap | die member 14 is connected to the connection member 22 of the socket apparatus 20, as shown in FIG.3 (b). Then, power is introduced from the connection member 22 through the cap member 14, supplied to the lighting device 13 of the lamp with cap 10, and supplied to the light emitting unit 12.

  Next, as described above, the coupling means 15 in the socket device 20 is made of, for example, one of neodymium, ferrite, and alnico, and has a magnet 15b having an attractive force of about 3N or more (for example, 20N to 30N). Consists of. As the magnet 15b, a pair of two thin circular magnets having the same shape is prepared, and as shown in FIG. 3 (a), a pair of the plug body 14b of the base member 14 is locked to the surface of the socket body 21. It fits into a pair of circular support recesses 21d2 formed so as to face the line bb connecting the center point of the locking hole 22c1 and the substantially orthogonal diameter direction (a-a line), respectively, and silicone resin or epoxy It is fixed with an adhesive made of resin or the like. In the figure, reference numeral 23 denotes four mounting holes for fixing the socket device 20 to a reflector or the like of a lighting fixture. As described above, the socket device 20 that can be electrically connected and mechanically held by the flat lamp 10 with the cap structure provided with the cap member 14 of the GX53 type is configured.

  Next, the structure of the lighting fixture which consists of the lamp | ramp 10 with a cap comprised as mentioned above and the socket apparatus 20 is demonstrated. As shown in FIGS. 5 and 6, reference numeral 30 denotes a downlight type lighting fixture embedded in a ceiling surface X of a store or the like, and a fixture main body 32 having a metal box shape having an opening 31 on the bottom surface. The metal reflector 33 fitted in the opening 31 and the socket device 20 having the above-described configuration are installed at the center of the upper surface plate of the reflector 33. The reflector 33 is made of a metal having good thermal conductivity, for example, a metal plate such as stainless steel, and is configured to act as a heat sink.

  In the lighting fixture 30 configured as described above, the lamp 10 with the flat thin structure having the above-described LED as a light source and provided with the base member 14 of the GX53 type is mounted on the socket device 20. As shown in FIGS. 4 and 6, the pair of base members 14 of the lamp with cap 10 are opposed to the engagement holes 22c of the socket device 20, and the plug portion 14b of the base member 14 is inserted into the insertion hole 22c2. Then, it is rotated by an angle α1 in the direction of the arrow in the figure. As a result, the plug portion 14b of the base member 14 contacts the terminal plate 22a, and further contacts the terminal plate 22a by protruding over the "<"-shaped protrusion portion of the terminal plate, and at the same time, the plug portion 14b is formed of a long hole. It is mechanically held by being locked to the back surface side of the stop hole 22c1. In addition, the lamp | ramp 10 with a nozzle | cap | die can be removed from the socket apparatus 20 by rotating in a reverse direction.

  When the lamp with cap 10 is mounted on the socket device 20, the coupling means 15 including the magnetic body 15 a and the magnet 15 b provided on the cap with lamp 10 and the socket device 20 attracts and rotates in the rotating direction by the magnetic force. Assist the operation. That is, when the plug portion 14b of the cap member 14 is inserted into the insertion hole 22c2, the magnetic member 15a and the magnet 15b are positioned so as to be displaced by an angle α1 (FIG. 4), and the lamp with cap 10 When they are rotated by an angle α1 in the direction of the arrow in the figure, they are attracted to face each other. This attracting force acts in the rotation direction to assist the rotation operation. Thereby, even if the half-hanging state of the cap member 14 is avoided, or even in the half-hanging state, the lamp main body 11 and the socket device 20 are sucked and coupled, so that the lamp 10 with the cap is securely attached to the socket device 20. Can be installed. At the same time, as shown in FIG. 7, the support step portion 11d of the lamp body 11 made of aluminum and the lower surface of the socket body 21 made of aluminum are in contact with each other and thermally coupled to generate heat generated in the lamp 10 with the cap. The heat can be radiated to the outside through the socket device 20.

  At this time, the depth h1 of the support hole 21a of the socket device 20 is formed to be slightly smaller than the height of the support step 11d of the lamp body 11 (h1 <h2). When the support step portion 11d of the lamp body 11 and the lower surface of the socket body 21 come into contact with each other due to the attractive force of the magnet 15b, the outer bottom surface of the recessed fitting portion 11e of the lamp body 11 protrudes by a slight dimension t1, and the inner surface of the reflector 33 The heat is effectively dissipated to the outside through the reflector 33 which is also pressed against by the magnetic force and is more closely bonded and is also a heat sink.

  Incidentally, in this type of conventional lighting apparatus, even when the lamp with cap is slightly rotated, the base plate and the terminal plate of the connecting member come into contact with each other first to make electrical connection. Since the electrical connection is made before the plug portion 14b crosses over the "<"-shaped protrusion of the terminal board, the lamp lights up before it is completely held mechanically, and the user has completed the installation. There is a case where the mounting operation is terminated without being completely misunderstood and mechanically held, and there is a possibility that a half-hanging state may occur. In addition, since there is no coupling means using a magnetic body and a magnet, there is no gap between the lamp body and the socket body without being mounted in contact with each other. Furthermore, the lamp body and the socket body are usually made of synthetic resin. The heat generated by the lamp with the cap cannot be dissipated through the socket device.

  As described above, the downlight-type lighting fixture 30 using the lamp 10 with the flat thin structure using the LED as the light source is used as the light source. When the power is turned on in this state, power is supplied from the socket device 20 via the base member 14 of the lamp 10 with base, and the lighting device 13 operates to output a DC voltage of 24V. This DC voltage is applied from the lighting device 13 to each LED 12a, and a constant DC current is supplied to light all the LEDs simultaneously. The white light radiated from each LED 12a is radiated substantially uniformly toward the entire inner surface of the cover member 16, and the light is diffused by a milky white glove to perform illumination with a predetermined light distribution characteristic.

  Further, when the lamp with cap 10 is turned on, the temperature of the LED 12a rises and heat is generated. As shown in FIG. 7, the heat is transmitted from the substrate 12b made of aluminum having good thermal conductivity to the substrate support portion 11b to which the substrate is directly adhered and fixed, and the outer peripheral surface of the lamp body 11 made of aluminum. The heat is radiated to the outside through the heat radiation fins 11f. Further, the heat generated from the electronic component 13b of the lighting device 13, particularly the heat generated from the switching transistor 13b3 accompanied by heat generation, is radiated to the outside from the bottom surface of the lamp body 11 in which the switching transistor 13b3 is closely attached. The support step 11d of the lamp body 11 and the lower surface of the socket body 21 are brought into close contact with each other by the attractive force of the magnetic body 15a and the magnet 15b, and heat is radiated to the outside from the socket body 21 made of aluminum. The outer bottom surface of the recessed fitting portion 11e is pressed against the surface of the reflector 33 by an attracting force by a magnetic force and is radiated to the outside through the reflector 33 which is also a heat sink. These effective heat dissipation actions suppress the temperature rise of the LED 12a and the temperature rise of the electronic component 13b in the lighting device 13.

  As described above, according to the present embodiment, when the base member 14 is electrically connected to the socket device 20, the coupling member 15 that couples the lamp body 11 to the socket device 20 by magnetic force avoids the half-hanging state of the base member 14, or Even in the half-hanging state, the lamp body 11 and the socket device 20 can be adsorbed and coupled, and the cap-equipped lamp 10 can be securely attached to the socket device 20. At the same time, the lamp main body 11 and the socket device 20 can be thermally coupled to dissipate the heat generated by the lamp with cap 10 to the outside via the socket device 20.

  In particular, since the coupling means can use the attractive force of the magnetic body 15a and the magnet 15b to assist the turning operation when the lamp with cap 10 is mounted, the lamp with cap 10 can be attached to the socket device 20 with a simple configuration. Accordingly, it is possible to provide a cap-equipped lamp, a socket device, and a lighting fixture that can be reliably attached and are suitable for mass production and are advantageous in terms of cost. At the same time, the support step portion 11d of the lamp body 11 and the lower surface of the socket body 21 can be brought into close thermal contact with each other by the attractive force of the magnetic body 15a and the magnet 15b. The generated heat can be radiated to the outside through the socket device 20. Further, the outer bottom surface of the recessed fitting portion 11e of the lamp body 11 can be pressed against the surface of the reflecting plate 33 by the attractive force of the magnetic body 15a and the magnet 15b. Heat can be dissipated to the outside. At the same time, the recessed fitting portion 11e can accommodate a large electronic component, and can contribute to the flat thin structure of the lamp body 11.

  Further, the heat generated in the LED 12a is transmitted from the substrate 12b made of aluminum having good thermal conductivity to the substrate support portion 11b to which the substrate is directly attached and fixed, and is externally transmitted from the outer peripheral surface of the lamp body 11 made of aluminum. Can dissipate heat. In this case, the heat dissipation path of the heat generated in the LED 12a and the heat dissipation path of the heat generated in the lighting device 13 can be made different paths, and the heat is radiated more effectively without mutual interference. be able to. With these effective heat dissipation actions, the temperature rise of the LED 12a and the temperature rise of the electronic component 13b in the lighting device 13 are suppressed, the decrease in light emission efficiency can be suppressed, the reliability of the electronic component can be improved, and a long-life base is attached. Lamps and luminaires can be provided.

  At the same time, it is possible to achieve downsizing by these effective heat radiation actions, and it is possible to configure a small lamp with a high luminous flux. Furthermore, the lamp with cap and the socket device are coupled by magnetic force, and they can be brought into thermal contact with each other by means of their attracting force, so that heat can be transferred to the instrument side via the socket device to dissipate heat. Thus, it is configured without using any special mounting means, and the degree of freedom of design is increased without the shape of the mounting side being restricted by the mounting means or the like, and a wide variety of lighting fixtures can be freely configured.

  As described above, in this embodiment, the magnet and the magnetic body constituting the coupling means 15 are configured such that the base member 14 is made of a magnetic material such as nickel and has conductivity as shown in FIG. You may make it couple | bond both by the magnet 15b provided in the engagement hole 22c. According to this configuration, the magnetic body can be shared by the base member, and a simple lamp with a base, a socket device, and a lighting fixture can be provided at a lower cost.

  In addition, in FIG. 8 which shows a modification, the same code | symbol was attached | subjected to the same part as FIGS. 1-7, and detailed description was abbreviate | omitted. The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments. For example, a flat thin shape in which a fluorescent lamp is used as a light source and a base member 14 of the GX53 type is provided. Various design changes can be made without departing from the gist of the present invention, such as configuring a lamp with a base having a structure.

DESCRIPTION OF SYMBOLS 10 Lamp with a base 11 Lamp main body 12 Light emission part 13 Lighting apparatus 14 Base member 15 Coupling means 20 Socket apparatus 21 Socket main body 22 Connection member 30 Lighting fixture

Claims (3)

A lamp body made of a heat conductive member;
A light emitting part disposed in the lamp body;
A lighting device disposed in the lamp body for lighting the light emitting part;
A base member connected to the lighting device;
Coupling means for coupling the lamp body to the socket device by magnetic force when the base member is electrically connected to the socket device;
A lamp with a base, characterized by comprising: A socket body made of a thermally conductive member;
A connection member to which the base member of the lamp with base is electrically connected;
A coupling means for coupling the socket body to the lamp with cap by magnetic force when the connection member is electrically connected to the lamp with cap;
A socket device comprising: A lamp with a cap according to claim 1;
A socket device according to claim 2;
The lighting fixture characterized by comprising.

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