JP5983103B2 - Lamps and lighting fixtures - Google Patents

Description

  The present invention relates to a lamp formed in a rod shape, and a luminaire including the lamp.

  In recent years, a lamp that can be used as an alternative to a light bulb using a light emitting element as a light source has been proposed in accordance with an increase in output and cost of the light emitting element (for example, see Patent Document 1). This lamp is configured as a cap-type lamp in which a cap provided at one end is mounted on a socket of a lamp.

JP 2010-010134 A

However, a lamp using a light emitting element as a light source, such as the above-described conventional lamp, requires a heat dissipating structure for dissipating heat from the light emitting element. When such a lamp having a mass is formed in a rod shape and used outdoors, for example, the load applied to the socket by vibration may increase. In addition, when a rod-shaped lamp having a large mass is mounted sideways, the bending moment increases, so the load applied to the socket increases.
This invention is made | formed in view of the situation mentioned above, and aims at providing the lamp | ramp and lighting fixture which suppressed the load concerning a socket.

To achieve the above object, the present invention may have a light emitting element, the rod-shaped lamp having a ferrule which is mounted in the lamp socket on one end, a plurality includes a light source unit having the light emitting element to the surface of the base The plurality of light source units are arranged around the axis of the lamp with the back surface of each base facing inward, and are coupled to each other by a coupling member on the front end side of the lamp. opening is provided for communicating the back surface side of the space to the outside, a fixing unit for fixing the lamp to the lamp, characterized by comprising to pass over the aperture.

The said structure WHEREIN: The said fixing | fixed part may be provided in the front-end | tip of the said lamp so that rotation is possible centering | focusing on the axis line of the said lamp.

The said structure WHEREIN: The said coupling member and the said fixing | fixed part may be formed with a heat conductive material, and the said fixing | fixed part may be attached to the said coupling member .

The present invention also have a light emitting element, a rod-shaped lamp having a mouthpiece at one end, in the lighting fixture cap of the lamp and a lamp having a socket to be mounted, the lamp,
A plurality of light source units having the light emitting elements on the surface of the base are provided, and the plurality of light source units are arranged around the axis of the lamp with the back surface of each base facing inward, and a coupling member on the front end side of the lamp The coupling member is provided with an opening that communicates the space on the back surface side of the base body to the outside, and the lamp includes a fixing portion that fixes the coupling member or the base body to the lamp. The lamp is provided with a fixture that extends from a main body of the lamp and fixes the fixing portion of the lamp.

The said structure WHEREIN: The said fixing tool may fix the said fixing | fixed part to the said lamp so that the axis line of the said lamp and the optical axis of the reflective mirror of the said lamp may correspond.

  The said structure WHEREIN: The said fixing tool may be attached to the screw hole for fixing the reflective mirror of the said lamp to the main body of the said lamp.

  According to the present invention, since the lamp includes the fixing portion that fixes the support to the lamp, the lamp is supported by the base and the fixing portion, so that the load applied to the socket can be suppressed.

It is a longitudinal section showing a lamp concerning an embodiment of the present invention. It is a perspective view which shows a lamp | ramp. It is a side view which changes the angle of the lamp | ramp of FIG. It is sectional drawing which shows a lamp | ramp. It is a perspective view which shows the inside of a light source unit. It is a rear view of a light source unit. It is a figure which expands and shows the fixing | fixed part of the reflecting mirror in FIG. It is a figure which shows the lamp | ramp which concerns on the modification of this invention. It is sectional drawing which shows the lamp fixing method which concerns on the modification of this invention. It is a perspective view which shows the lamp fixing method which concerns on the modification of this invention. It is a perspective view which shows the lamp fixing method which concerns on the modification of this invention. It is a figure which shows the lamp fixing method which concerns on the modification of this invention.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a longitudinal sectional view showing a lamp according to the present embodiment.
The luminaire 1 shown in this figure is used as, for example, an outdoor type road lamp, and is fixed to a tip portion PA of a pole P standing on a road shoulder. Specifically, the lighting fixture 1 includes a lamp 2 and an LED lamp (lamp) 3 attached to the lamp 2. The lamp 2 has an instrument body (main body) 4A, and the tip portion PA of the pole P is inserted into the rear side of the instrument body 4A, and the tip part PA is fixed to the instrument body 4A by a plurality of hexagon bolts PB. ing.

  The instrument body 4A has a substantially elliptical shape with a lower surface opened, and is formed using a material having excellent thermal conductivity such as aluminum die-casting. A frame 4B made of the same material (for example, aluminum die cast) as the instrument body 4A is attached to the lower side of the instrument body 4A. The front end of the frame body 4B is pivotally connected to the instrument body 4A by a hinge body 5 and the rear end part is locked to the instrument body 4A by a latch 6 so as to be detachable. By rotating the operation portion 6A of the latch 6, the latch 6 is disengaged and the frame body 4B is rotated, so that the lower surface of the instrument body 4A can be opened.

The front side portion of the instrument body 4A is provided with a substantially spherical reflecting mirror 7 having an open lower surface, and the frame 4B has an upper surface opened so as to cover the opening of the reflecting mirror 7. A glove 4C made of hard glass having a substantially spherical shape is provided.
Further, the socket 8 is attached in a state of being inserted through the insertion hole 7 </ b> A formed in the front portion of the reflecting mirror 7. The socket 8 is provided sideways, more specifically, with a predetermined attachment angle θ with respect to the horizontal plane H. The socket 8 is connected to a terminal block 9 via an electric wire (not shown), and is further installed in the ground from the terminal block 9 via a ballast or a connection box (not shown) inside the pole P. Connected to the connected power line. An LED lamp 3 using an LED 11 as an example of a light emitting element as a light source is attached to the socket 8.

  The LED lamp 3 is a cap-type lamp having a base 40 at the base end (one end) 3A, which can be used with the base 40 mounted on an existing socket 8 and extends in the shape of a rod like an arc tube of an HID lamp. Radiation light is emitted almost uniformly from the whole, and has a light output that can be used in place of an existing discharge lamp of a high output type such as an HID lamp. The LED lamp 3 is waterproofed so that it can be used outdoors.

  However, while the discharge lamp is lit with an alternating current, a light emitting element such as the LED 11 is lit with a direct current. Therefore, when the LED lamp 3 using the LED 11 as a light source is lit with an AC commercial power supply, a DC current is supplied to the LED lamp 3 through a power supply circuit that converts the commercial power supply into a DC current. The LED lamp 3 of the present embodiment has a configuration in which a power supply circuit is provided on the socket 8 side without incorporating a power supply circuit, and a direct current is input from the socket 8 through the base 40. In other words, when the LED lamp 3 is mounted on an existing lamp for a discharge lamp, the ballast included in the lamp 2 is replaced with a power supply circuit.

Next, the configuration of the LED lamp 3 will be described in detail.
FIG. 2 is a perspective view showing the LED lamp 3, and FIG. 3 is a side view showing the LED lamp 3 of FIG. FIG. 4 is a cross-sectional view showing the LED lamp 3.
As shown in FIGS. 2 and 3, the LED lamp 3 includes the base 40, a housing 30 that extends in a column shape with respect to the base 40, and a mounting body 35 that attaches the base 40 to the lower end of the housing 30. And a plurality of (four in this embodiment) light source units 10 supported around the container 30. The base 40 is, for example, a screw type (rotating type) generally called an E type base such as an E26 type or an E39 type, and is configured according to an existing size and screwed into an existing socket 8. It can be installed. A direct current is supplied to the base 40 through the socket 8 (FIG. 1) and supplied in series to each light source unit 10.

  The container 30 is a member that supports the light source unit 10 and connects a lead wire (not shown) extending between the light source unit 10 and the base 40 without exposing it to the outside, and has excellent thermal conductivity. For example, it is formed by molding an aluminum alloy. The container 30 has a substantially cylindrical shape, and a screw hole for screwing the light source unit 10 is formed on the outer peripheral surface of the container 30, although not shown in the figure. An introduction hole for drawing the lead wire is formed at the above position. The screw holes are formed at equal intervals around the axis K that is the central axis of the container 30 by the number of the light source units 10 to be supported. That is, the light source unit 10 is screwed to each screw hole with the screw 22A, so that the light source units 10 are supported around the axis K at equal intervals. As will be described in detail later, the light source unit 10 has a substantially rectangular shape in plan view, and is supported in a cantilevered state in which the lower end is screwed with a screw 22A and extends upward substantially parallel to the axis K. Is done. The light source unit 10 has a substantially rectangular shape in plan view, and one end portion 52 on the lower end side is screwed to the housing 30 with a screw 22A, and is supported in a cantilevered support state that extends upward substantially parallel to the axis K. The Further, the other end 53 which is the end opposite to the one end 52 of the plurality of light source units 10 is coupled and supported by the coupling member 62.

The coupling member 62 is formed of a material having excellent rigidity and thermal conductivity (for example, aluminum), and couples the other end portion 53 that is an end portion opposite to the one end portion 52 of the plurality of light source units 10. It is formed in a polygonal ring shape (ring shape), and has an opening 62A that communicates a space R, which will be described later, to the outside in the direction of the axis K. The coupling member 62 may have a plate shape having at least one opening in addition to the ring shape. The coupling member 62 is formed in advance in a shape that can fix the other end portion 53 of the light source unit 10 having one end portion 52 fixed around the housing 30 at a predetermined position. Further, the coupling member 62 is formed to have a strength that does not deform even when the LED lamp 3 is attached and is continuously loaded by the weight of the light source unit 10.
The coupling member 62 includes an end surface pressing portion 68A that makes contact with the upper end surface of each light source unit 10 by a surface, and an outer peripheral pressing portion 68B that presses each light source unit 10 from the outer peripheral side. The coupling member 62 is fixed to the light source unit 10 from the opening 62A side by a screw 66 that is screwed from the other end side to a screw fixing portion 67 protruding from the back surface 13B of the light source unit 10.

  The base 40 is attached to the attachment body 35 from below. A pair of lead wires (not shown) for positive potential and negative potential drawn into the housing 30 from the light source unit 10 passes through the attachment body 35 and is electrically connected to the base 40.

As described above, the light source unit 10 emits radiated light using the LED 11 as a light source, and is configured in a rectangular shape extending along the axis K of the container 30.
The LED lamp 3 of the present embodiment includes four light source units 10, and these light source units 10 face the back surface 13B of each base 13 inward and extend in the same direction as the axis K of the container 30, Around the axis K, they are annularly arranged at equal intervals and supported by the container 30. Thereby, light will be radiated | emitted to the range over the perimeter of the axis line K. FIG.
All of these light source units 10 have the same structure and shape, and when the LED lamps 3 having different light outputs are configured, the number of light source units 10 corresponding to the desired light output is placed around the container 30. Arranged.

FIG. 5 is a perspective view showing the inside of the light source unit 10, and FIG. 6 is a rear view of the light source unit 10.
The light source unit 10 includes a mounting board 12 on which the LEDs 11 are mounted, and a base body 13 on which the mounting board 12 is attached to the surface 13A with an electric insulating member (not shown) interposed therebetween.
The mounting board 12 is a substantially rectangular plate-like printed wiring board, on the surface of which a plurality of LEDs 11 and an electrode pattern 16 that constitutes a charging unit by soldering lead wires (not shown) are provided. ing.

The LED 11 is formed by arranging a large number of LED elements, in the present embodiment, 240 LED elements, for example, in a lattice shape within a substantially rectangular range in plan view, and molding the surface thereof with a resin material with a thin thickness. Yes, almost the entire surface emits light. As shown in FIG. 5, a plurality of (three in the illustrated example) LEDs 11 are arranged in series on the mounting substrate 12 with substantially no gap, and these LEDs 11 can obtain linear light emission. . Thus, LED11 consists of many LED elements, and since it is comprised so that the whole may shine, it has the effect of reducing a glare by increasing the light emission area.
Moreover, the ratio of the area | region which LED11 occupies with respect to the surface area of the mounting board | substrate 12 occupies more than half, and it seems that the surface of the mounting board | substrate 12 light-emits entirely.
The electrode pattern 16 is formed at the end of the mounting substrate 12 and is electrically connected to each LED 11 in series or in parallel through a printed wiring (not shown).

The base 13 is a rectangular plate formed by extruding a metal material having high thermal conductivity such as aluminum, for example, and functions as a base for packaging the mounting substrate 12 and a heat sink that receives heat from the LED 11 and dissipates heat. To do.
More specifically, the base 13 is formed in a thin plate shape (a plate shape having a flat front and back) that can accommodate the mounting substrate 12 therein, and the mounting substrate 12 is substantially flush with the surface 13A. A mounting portion 13C as a recess is formed. The mounting portion 13 </ b> C is formed in a planar shape that is in close contact with the mounting substrate 12, and heat transfer from the mounting substrate 12 to the base body 13 is enhanced.
A bulging portion 12A that bulges outward in the lateral direction is formed at the substantially central portion on both side surfaces of the base 13 in the short direction, and the mounting substrate 12 housed in the mounting portion 13C is formed in each bulging portion 12A. A screw 12B for holding down the screw is screwed.

  The mounting portion 13 </ b> C of the base 13 has lead wires (not shown) penetrating through the front and back of the base 13 on one end (one end) 52 side of the mounting substrate 12 close to the electrode pattern 16 and connected to the mounting substrate 12. ) Is led out to the back side. An insertion hole 19 through which a screw 22 </ b> A (FIG. 2) that is screwed to the container 30 is provided is provided at one end 52 near the lead-out hole 17. Similarly, the other end portion 53 of the base body 13 is provided with an insertion hole 19 through which a screw 22B screwed to the coupling member 62 is passed.

The lead-out hole 17 is provided at a position connected to the introduction hole (not shown) of the container 30 when the base 13 is fixed to the container 30 and the coupling member 62. Accordingly, as described above, the lead wire (not shown) connected to the electrode pattern 16 of the mounting substrate 12 is drawn into the housing 30 without being exposed to the outside through the lead-out hole 17 and the introduction hole. .
The lead-out hole 17 that opens to the back surface 13B of the base 13 is sealed with an appropriate sealing material so that the back surface 13B side is waterproofed.

As shown in FIG. 7, a groove 18 surrounding the mounting portion 13 </ b> C is formed on the surface 13 </ b> A. Although not shown, a waterproof packing is fitted into the groove 18, and the waterproof packing is pressed. As shown in FIG. 6, a waterproof cover 14 is attached so as to be crushed. Further, in order to waterproof the surface 13 </ b> A of the base 13 and the waterproof cover 14, in addition to fitting a waterproof packing in the groove 18, the groove 18 may be filled with a caulking agent.
The waterproof cover 14 includes a dome-shaped cover portion 14 </ b> A formed using a translucent material, for example, a resin material, having an elliptical shape in plan view and a semicircular cross section. Around the cover portion 14A of the waterproof cover 14, a waterproof packing that is in contact with the surface 13A of the base 13 and is fitted into the groove 18 or a flat plate flange 14B that presses the caulking agent against the surface 13A is integrally formed. Thereby, the close contact between the flat gasket 14B and the waterproof packing of the groove 18 can prevent water from entering the mounting portion 13C on the inner side, and the mounting substrate 12 and the charging portion are protected from water immersion.

  The attachment structure of the waterproof cover 14 to the base body 13 will be described. The flat plate flange 14B is provided with a locking portion 14C for locking the waterproof cover 14 to the base body 13 at each corner. At the tip of each locking portion 14C, there is provided a locking claw 14D that is hooked on the back surface 13B of the base 13 when the waterproof cover 14 is placed on the front surface 13A of the base 13. When the waterproof cover 14 is attached to the base 13, the locking claw 14 </ b> D is elastically deformed, and the locking claw 14 </ b> D is brought into contact with the side surface of the base 13 so that the locking claw 14 </ b> D contacts the back surface 13 </ b> B of the base 13. Push in until it gets caught. On the side surface of the base 13, a stopper 13 </ b> D that is locked to the locking portion 14 </ b> C of the waterproof cover 14 and prevents the waterproof cover 14 from sliding in the longitudinal direction of the base 13 is provided. According to these configurations, the light source unit 10 can be waterproofed with a simple structure. Further, the waterproof cover 14 can be easily attached to the base 13 without using screws or the like, and the assemblability is improved.

In this LED lamp 3, in order to obtain a high light output like an HID lamp, each LED element of the LED 11 is increased in output and / or the number of LED elements is increased. For this reason, the individual heat generation of the LED 11 is very large, and the light source unit 10 using the LED 11 as a light source is required to have high heat dissipation (coolability). In particular, the die-type LED lamp 3 is different from a lamp or the like, and it is necessary to process heat generation by itself, so that it is difficult to increase the output.
Therefore, in this embodiment, the heat dissipation of the LED lamp 3 is improved as follows.

  That is, in the light source unit 10, the mounting substrate 12 is provided in close contact with the surface 13A of the base 13 formed of a high thermal conductivity material, and as shown in FIGS. 4 and 6, the back surface 13B of the base 13 is provided on the back surface 13B. A large number of heat radiation fins 15 are integrally provided, and heat generated by the LEDs 11 of the mounting substrate 12 is radiated through the heat radiation fins 15. A plurality of heat radiation fins 15 are provided in parallel with each other in the width direction of the base body 13, and each heat radiation fin 15 extends in the longitudinal direction between the stoppers 13 </ b> D of the base body 13. As shown in FIG. 4, the radiating fins 15 are composed of seven radiating fins 15 having different heights from the inside toward the outside. The base 13, the container 30, and the coupling member 62 constitute a support 20 that supports the LED 11. The base 13 and the coupling member 62 may be integrally formed.

  The light source unit 10 is arranged around the axis K of the container 30 with a gap G between the light source units 10. Thus, a space R that extends along the axis K of the container 30 and communicates with the gap G is formed on the LED lamp 3 on the back surface 13B side of the base 13. This space R extends from the upper end to the lower end of the back surface 13B of each light source unit 10, is connected to the outside, and functions as a ventilation path. The heat radiated to the space R from the radiation fins 15 on the back surface 13B of each light source unit 10 is externally transmitted in the radiation direction of the LED lamp 3 and the axis K direction through the gap G and the opening 62A of the coupling member 62. Heat is dissipated.

As described above, the LED lamp 3 of the present embodiment is a high-output type lamp in which a plurality of light source units 10 are used, and a support body having a large heat dissipation amount of the LED 11 and a heat dissipation structure for dissipating heat of the LED 11. 20 so that the mass is relatively large. Further, when the LED lamp 3 is provided sideways, since the bending moment increases, the load applied to the socket 8 increases.
Therefore, as shown in FIGS. 2 and 3, the LED lamp 3 of the present embodiment is provided with a fixing portion 70 that fixes the support 20 to the lamp 2 separately from the base 40. In FIG. 3, the fixing portion 70 is removed from the LED lamp 3.

  The fixing portion 70 includes a base 71 that is attached to the coupling member 62 at the tip 3 </ b> B of the LED lamp 3, and a rotating portion 72 that is rotatable with respect to the base 71. The base 71 is formed in a thin plate shape, and is stretched over the end surface pressing portion 68 </ b> A of the annular coupling member 62. That is, the base 71 is provided so as not to completely block the opening 62A that allows the space R1 to communicate with the outside, and has a configuration in which heat dissipation from the opening 62A is difficult to be inhibited. The base 71 is disposed so as to pass through the axis K of the LED lamp 3, and is fixed to the coupling member 62 using a screw 66 that fixes the coupling member 62 to the support 20.

The rotating portion 72 extends from the pedestal portion 72A at the same angle θ as the mounting angle θ of the LED lamp 3 (FIG. 1) with respect to the axis K of the LED lamp 3 and the pedestal portion 72A fixed to the base portion 71 by the screw 73. And a projecting portion 72B. The center of the screw 73 coincides with the axis K of the LED lamp 3, so that the rotating part 72 can rotate about the axis K. A long hole (through hole) 72C that is long in the direction of the axis K is formed in the extending portion 72B.
The fixed portion 70 including the base portion 71 and the rotating portion 72 is formed using a metal material having thermal conductivity such as a stainless steel plate.

Next, the structure of the lamp 2 for fixing the fixing | fixed part 70 to the lamp 2 is demonstrated.
FIG. 7 is an enlarged view showing a fixed portion of the reflecting mirror 7 in FIG.
A boss 81 for fixing the reflecting mirror 7 to the fixture body 4A is formed on the tip side of the LED lamp 3 on the fixture body 4A of the lamp 2. An end surface 81A of the boss 81 is formed in a flat shape parallel to the horizontal plane H, and a screw hole 81B for screwing the reflecting mirror 7 is formed in the boss 81. The boss 81 is provided so that the center C of the screw hole 81B intersects the optical axis L.
The reflecting mirror 7 is formed with a flat seat 7B at a position corresponding to the boss 81, and a through hole 7C is formed in the seat 7B.

  The fixing portion 70 and the reflecting mirror 7 are fixed to the instrument main body 4A by a fixing tool 90. The fixture 90 includes a pin-like column 91 that is screwed into the screw hole 81B of the instrument body 4A, a positioning unit 92 that positions the screwing amount of the column 91, and a seating surface of the column 91 and the fixing unit 70. And a spacer 93 provided. The support | pillar 91 is comprised using the half screw | thread, for example which has a thread part in a front-end | tip part. The positioning portion 92 is formed in a cylindrical shape through which the support column 91 can be inserted. At the time of attachment, one end surface 92A is in contact with the seat portion 7B of the reflecting mirror 7, and the other end surface 92B is in contact with the extending portion 72B. The spacer 93 is also formed in a cylindrical shape.

The support column 91 is passed through the long hole 72C of the fixing portion 70 via the spacer 93, and further passed through the through hole 7C of the reflecting mirror 7 via the positioning portion 92 and screwed to the screw hole 81B of the boss 81. The
By the way, when the rod-shaped LED lamp 3 is mounted in the socket 8, the axis K may not coincide with the optical axis L optically designed with respect to the reflecting mirror 7 due to manufacturing error or mounting error of each part. Therefore, the length M of the positioning portion 92 is set to a length M that matches the axis K of the LED lamp 3 with the optical axis L set in the reflecting mirror 7.
Further, the center of the long hole 72C may not coincide with the screw hole 81B of the boss 81 in the axis K direction due to a screwed state of the LED lamp 3 into the socket 8 or a manufacturing error of parts. Accordingly, the long hole 72C is formed to have a length that allows a screwed state of the LED lamp 3 and manufacturing errors of components.

Next, the operation of this embodiment will be described.
In the present embodiment, since the fixing portion 70 for fixing the support 20 to the lamp 2 is provided, the LED lamp 3 is supported at two locations of the base 40 and the fixing portion 70. Therefore, even if the mass of the LED lamp 3 is large, The load applied to the socket 8 can be reduced. In addition, when the rod-shaped LED lamp 3 is disposed sideways, the bending moment increases, so that the load on the base 40 and the socket 8 can be effectively reduced particularly when the LED lamp 3 receives vibration or the like. .

  Since the fixing portion 70 includes a rotating portion 72 that can rotate around the axis K of the LED lamp 3 at the tip 3B of the LED lamp 3, the rotating portion of the fixing portion 70 depends on the circumferential direction of the LED lamp 3. By rotating 72 around the axis K of the LED lamp 3, the extending portion 72B of the rotating portion 72 can be disposed at a certain position (a position below the screw 73 in this embodiment). Therefore, no matter what circumferential direction the LED lamp 3 is mounted, the support 20 of the LED lamp 3 can be fixed to the lamp 2 by one fixing portion 70. For example, the fixing portion is provided for each predetermined direction. Compared to the case of designing, the number of parts can be reduced and the assemblability can be improved.

  Since the LED lamp 3 does not include the LED 11 at the tip 3B, the amount of light emitted from the tip 3B is small. Therefore, by providing the fixing portion 70 at a position where the amount of emitted light is small, it is possible to minimize the influence on the desired emitted light and fix the support 20 of the LED lamp 3 to the lamp 2. In addition, in this embodiment, although the fixing | fixed part 70 was attached to the end surface pressing part 68A of the coupling member 62, you may attach to the outer periphery pressing part 68B.

  The fixture 90 is configured to fix the support 20 to the lamp 2 so that the axis K of the LED lamp 3 and the optical axis L of the reflecting mirror 7 coincide. More specifically, the boss 81 is provided so that the center C of the screw hole 81B intersects the optical axis L, and the positioning portion 92 of the fixture 90 is connected to the axis K of the LED lamp 3 and the optical axis L of the reflecting mirror 7. Is set to a length M that matches. Thus, even when the axis K of the LED lamp 3 does not coincide with the optical axis L designed for the reflecting mirror 7 due to component assembly errors or manufacturing errors, the LED lamp 3 can be fixed to the fixture 90 by fixing the LED lamp 3 to the fixture 90. Since the position of the LED lamp 3 can be corrected and fixed so that the axis K approaches the optical axis L, the light of the LED lamp 3 can be emitted with a desired optical design. Here, the fixing part 70 and the fixing tool 90 have such a rigidity that they are not deformed when the LED lamp 3 is fixed in a state where there is an assembly error or a manufacturing error.

Since the support column 91 of the fixture 90 is screwed into a screw hole 81B for fixing the reflecting mirror 7 to the fixture body 4A of the lamp 2, the reflection mirror 7 is fixed to the fixture body 4A by the support column 91. A separate screw for fixing the mirror 7 is not required. Accordingly, an increase in the number of parts due to the provision of the fixture 90 can be minimized, and it is not necessary to newly design the fixture body 4A to fix the fixture 90. Therefore, the lighting fixture 1 can be easily provided. Can be manufactured.
Since the fixing part 70 and the fixing tool 90 are formed of a heat conductive material and the fixing part 70 is attached to the support body 20, the heat of the LED 11 is transmitted through the support body 20, the fixing part 70 and the fixing tool 90. The heat of the LED 11 can be efficiently dissipated.

  As described above, according to this embodiment, the LED lamp 3 includes the fixing portion 70 that fixes the support 20 to the lamp 2, and the lamp 2 extends from the reflecting mirror 7, and the fixing portion 70 is fixed. The fixing tool 90 is provided. With this configuration, since the LED lamp 3 is supported by the base 40 and the fixing portion 70, the load applied to the socket 8 can be suppressed even if the mass of the LED lamp 3 is large.

  Further, according to the present embodiment, the fixing portion 70 is configured to be provided at the tip 3 </ b> B of the LED lamp 3 so as to be rotatable about the axis K of the LED lamp 3. With this configuration, even if the base 40 of the LED lamp 3 is a screw-in E-type base, the circumferential direction of the LED lamp 3 can be achieved by rotating the rotating part 72 of the fixed part 70 about the axis K of the LED lamp 3. The support 20 of the LED lamp 3 can be easily fixed to the lamp 2 regardless of the orientation of the lamp.

  Moreover, according to this embodiment, the support body 20 and the fixing | fixed part 70 were formed with the high heat conductive material, and the fixing | fixed part 70 was set as the structure attached to the support body 20. As shown in FIG. With this configuration, the heat of the LED 11 transmitted to the support body 20 is transmitted to the lamp 2 side via the fixing portion 70, so that the heat of the LED 11 can be radiated efficiently.

  Further, according to the present embodiment, the fixture 90 is configured to fix the support body 20 to the lamp 2 so that the axis K of the LED lamp 3 and the optical axis L of the reflecting mirror 7 coincide with each other. With this configuration, by fixing the LED lamp 3 to the fixture 90, the LED lamp 3 can be fixed with the axis K close to the optical axis L, so that the light of the LED lamp 3 can be emitted close to the optical design. it can.

  Moreover, according to this embodiment, the fixing tool 90 was set as the structure attached to the screw hole 81B for fixing the reflective mirror 7 to the instrument main body 4A of the lamp 2. With this configuration, it is possible to prevent an increase in the number of parts, and it is not necessary to newly design the fixture body 4A to fix the fixture 90, so that the lighting fixture 1 can be easily manufactured.

However, the above embodiment is an aspect of the present invention, and it is needless to say that the embodiment can be appropriately changed without departing from the gist of the present invention.
For example, in the above embodiment, the LED lamp 3 is mounted horizontally, but the LED lamp 3 may be mounted vertically.

Moreover, in the said embodiment, although the fixing tool 90 was pin shape, it is not limited to this, For example, plate shape and wire shape may be sufficient.
FIG. 8 is a longitudinal sectional view showing the lighting apparatus 100 using the plate-shaped fixture 190. In FIG. 8, the same parts as those of the lighting fixture 1 shown in FIG.
The fixture body 104A of the lighting fixture 100 has a substantially rectangular box shape with an open lower surface, and a frame body 104B made of the same material (for example, stainless steel plate) as the fixture body 104A is attached to the lower side of the fixture body 104A. ing. The frame body 104B has a front end portion (left side in FIG. 8) rotatably connected to the instrument main body 104A by a hinge body 105, and a rear end portion (right side in FIG. 8) by a fastener 106. It is locked to the instrument body 104A so as to be detachable. Then, by removing the fastener 106, the frame body 104B rotates, so that the lower surface of the instrument body 104A can be opened. A reflection mirror 107 having a substantially spherical shape with an open bottom surface is provided on the front side of the instrument body 104A. The frame body 104B is provided with a plate-like tempered glass globe 104C so as to cover the opening of the reflecting mirror 107. The socket 8 is supported substantially horizontally below the reflecting mirror 107.
The reflecting mirror 107 is formed with a plurality of (for example, two) screw through holes 107B for fixing the reflecting mirror 107 to the instrument body 104A with screws 182. A fixture 181 for fixing the reflecting mirror 107 is provided on the instrument main body 104A. The attachment 181 is formed along the shape of the back surface of the reflecting mirror 107, and a screw hole 181B is formed at a position corresponding to the through hole 107B.
The fixture 190 includes a support portion 194 that is fixed to the instrument main body 104A by a thin plate made of, for example, a heat conductive material, and an extending portion 195 that extends toward the fixing portion 70, and is substantially L-shaped in side view. It is formed in a shape. The support portion 194 is fixed by two screws 182 that fix the reflecting mirror 107 to the instrument main body 104A. The extension part 195 is fixed to the long hole 72C (FIG. 2) of the fixing part 70 with a screw 191. The extending portion 195 is provided so as to intersect the optical axis L of the reflecting mirror 107 and is formed to have a length M in which the axis K of the LED lamp 3 and the optical axis L of the reflecting mirror 7 coincide.
Thus, by forming the fixture 190 in a substantially L shape when viewed from the side, the lighting device 100 has a long hole 72C of the fixing portion 70 and a screw hole 181B for fixing the reflecting mirror 107 to the device body 104A. Even if the configuration does not match in the direction of the axis K, the fixing portion 70 can be fixed to the lamp 2.

Moreover, in the said embodiment, although the nozzle | cap | die 40 was a screw-in type E-type base, a plug-in type P-type base may be sufficient. In this case, since the LED lamp 3 is not rotated when the LED lamp 3 is attached to the lamp 2, the fixing portion does not need to include the rotating portion, and the position where the fixing portion is provided is not limited to the tip 3B of the LED lamp 3. However, in consideration of the bending moment of the rod-shaped LED lamp 3, it is desirable to provide the fixing portion 270 on the tip 3B side.
For example, as shown in FIG. 9, a fixing portion 270 that does not include a rotating portion can be provided on the support body 20 (base 13) located in the intermediate portion in the axis K direction of the LED lamp 3. Although the fixing portion 270 can take various shapes, in the example shown in FIG. 9, the fixing portion 270 is formed by integrating, for example, fixing pieces 274 formed of a thin plate made of a heat conductive material in a substantially L shape back to back. Has been. One end portion 274A of each fixed piece 274 extends from the gap G between the adjacent light source units 10 to the space R on the back surface 13B side of the base 13, and is attached between the adjacent radiation fins 15 located on the gap G side. Yes. A through hole 272C is formed in the other end portion 274B of each fixing piece 274, and a fixing member (for example, a screw) (not shown) is passed through the through hole 272C to fix the fixing tool to the lamp 2, thereby supporting the support body. 20 is fixed to the lamp 2.

  Moreover, in the said embodiment, although the fixing | fixed part 70 was provided with the base 71 and the rotation part 72 and the base 71 was screwed to the coupling member 62, the fixing | fixed part 370 is provided with the rotation part 72 as shown in FIG. The LED lamp 303 may include a coupling member 362 formed integrally with the base 371. Thereby, the number of parts can be reduced and assemblability can be improved. In order to further reduce the number of parts for assembling, as shown in FIG. 11, the fixing portion 470 includes a rotating portion 72, and the LED lamp 403 is integrally formed with a base 413, a joining member 462, and a base 471. The support 420 may be provided.

  In the above embodiment, the rotating unit 72 has a relatively high rigidity in order to correct the position of the LED lamp 3 whose axis K does not coincide with the optical axis L. However, the position correction of the LED lamp 3 is not necessary. In this case, like the fixing portion 570 shown in FIG. 12, the extending portion 572B of the rotating portion 572 is formed in a substantially U shape using a stainless steel elastic thin plate, and extends from the instrument body 4A. It is good also as a structure which can absorb the difference A of an angle with the end surface 592B of the positioning part 592, and height. In the example of FIG. 12, the fixing tool 590 includes a screw 591, a positioning portion 592, and a spacer 93, and the extension portion 572 </ b> B of the fixing portion 570 is fixed to the positioning portion 292 by the screw 291. It has become.

1,100 Lighting fixture 2 Lamp 3,303,403 LED lamp (lamp)
3A One end 3B Tip 4A, 104A Instrument body (lamp)
7,107 Reflector 8 Socket 11 LED (light emitting element)
20,420 Support 40 Base 70,270,370,470,570 Fixing part 90,190,590 Fixing tool 81B, 181B Screw hole K Axis L Optical axis

Claims (6)

Have a light-emitting element, the rod-shaped lamp having a ferrule which is mounted in the lamp socket on one end,
A plurality of light source units having the light emitting element on the surface of the substrate,
The plurality of light source units are arranged around the axis of the lamp with the back surface of each base facing inward, and are coupled to each other by a coupling member on the tip side of the lamp,
The coupling member is provided with an opening that communicates the space on the back side of the base body to the outside.
A lamp having a fixing portion for fixing the lamp to the lamp so as to span the opening . The fixing unit includes a lamp according to claim 1, wherein the tip of the lamp, characterized in that rotatable about the axis of the lamp. The coupling member and the fixing part are formed of a heat conductive material,
The lamp according to claim 1, wherein the fixing portion is attached to the coupling member . Have a light emitting element, a rod-shaped lamp having a mouthpiece at one end,
A lamp having a socket to which the base of the lamp is mounted;
In the lighting fixture with
The lamp includes a plurality of light source units each having the light emitting element on a surface of a base,
The plurality of light source units are arranged around the axis of the lamp with the back surface of each base facing inward, and are coupled to each other by a coupling member on the tip side of the lamp,
The coupling member is provided with an opening that communicates the space on the back side of the base body to the outside.
The lamp includes a fixing portion for fixing the coupling member or the base body to the lamp so as to span the opening,
The lighting device is provided with a fixture that extends from a main body of the lamp and fixes the fixing portion of the lamp. The fixture such that said lamp axis and the optical axis of the reflector of the lamp match, luminaire according to claim 4, characterized in that for fixing the fixing portion to the lamp.   The lighting fixture according to claim 4 or 5, wherein the fixture is attached to a screw hole for fixing a reflector of the lamp to a main body of the lamp.

Images