WO2012002135A1 - 直管形ledランプ、ランプソケットセットおよび照明器具 - Google Patents
直管形ledランプ、ランプソケットセットおよび照明器具 Download PDFInfo
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- WO2012002135A1 WO2012002135A1 PCT/JP2011/063394 JP2011063394W WO2012002135A1 WO 2012002135 A1 WO2012002135 A1 WO 2012002135A1 JP 2011063394 W JP2011063394 W JP 2011063394W WO 2012002135 A1 WO2012002135 A1 WO 2012002135A1
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- WIPO (PCT)
- Prior art keywords
- lamp
- base
- terminal
- straight tube
- lamp socket
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
- F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
- F21K9/272—Details of end parts, i.e. the parts that connect the light source to a fitting; Arrangement of components within end parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/02—Controlling the distribution of the light emitted by adjustment of elements by movement of light sources
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/717—Structural association with built-in electrical component with built-in light source
- H01R13/7175—Light emitting diodes (LEDs)
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
- H01R33/05—Two-pole devices
- H01R33/06—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other
- H01R33/08—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other for supporting tubular fluorescent lamp
- H01R33/0836—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other for supporting tubular fluorescent lamp characterised by the lamp holding means
- H01R33/0854—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other for supporting tubular fluorescent lamp characterised by the lamp holding means with lamp rotating means
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/02—Details
- H05B33/06—Electrode terminals
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
- F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
- H01R33/02—Single-pole devices, e.g. holder for supporting one end of a tubular incandescent or neon lamp
Definitions
- the present invention relates to a straight tube LED (light emitting diode) lamp, a lamp socket set to which the straight tube LED lamp is connected, and a lighting fixture using the straight tube LED lamp and the lamp socket set.
- a straight tube LED lamp that is a substitute for a straight tube fluorescent lamp includes a long substrate having a length corresponding to the fluorescent lamp, and a plurality of LEDs mounted on the substrate along the longitudinal direction. It has the composition provided with.
- An aluminum heat sink that constitutes a part of the outer shell is attached to the side of the substrate opposite to the LED, and the heat dissipation effect of the heat sink suppresses the LED temperature rise and prevents the LED luminous efficiency from decreasing.
- the LED lamp has a built-in lighting circuit including an AC / DC converter, and an AC voltage input from the lighting fixture is converted into a DC voltage by the lighting circuit and supplied to the LED for lighting.
- the life of the lighting circuit is likely to be shortened by heat generated in the LED, and therefore the life of the LED lamp itself is also likely to be shortened. Further, the heat generated in the lighting circuit may increase the temperature of the LED and reduce the light emission efficiency of the LED. Furthermore, the built-in lighting circuit causes the LED lamp to become larger and more expensive.
- a lighting circuit including an AC / DC converter is provided outside the lamp, for example, in a lighting fixture or the like, so that a DC voltage is supplied to the base of the LED lamp. Development is underway.
- the heat sink is made of aluminum and has conductivity
- the LED lamp is not grounded in a state where the LED lamp is attached to the lighting fixture. Therefore, when a current leaks from the LED module or the lighting fixture to the heat sink, there is a risk of electric shock if the heat sink is touched.
- the ground voltage of the heat sink is a simple sum of the power supply voltage and the lamp voltage, which is larger than the effective value of the ground voltage in the case of an AC lighting type LED lamp. There is a great risk of
- an object of the present invention is to provide a straight tube LED lamp, a lamp socket set, and a lighting fixture that are less likely to cause an electric shock.
- the straight tube type LED lamp of the present invention includes a first tube for feeding connection between a straight tube containing a plurality of light emitting diodes therein and one of the plurality of light emitting diodes provided on one end side in the axial direction of the straight tube. And a second base for grounding provided on the other axial end side of the straight pipe.
- the first base is provided with a first terminal for electrical connection with the power supply terminal of the first lamp socket.
- the second base is provided with a second terminal for electrical connection with the ground terminal of the second lamp socket.
- the straight tube LED lamp further includes a conductive member, and the second terminal is electrically connected to the conductive member.
- the conductive member is long and forms a part of the straight pipe.
- the plurality of light emitting diodes are mounted on a long substrate along the longitudinal direction to form an LED module, and the conductive member is a heat sink that is in thermal contact with the LED module. .
- the first terminal includes two cap pins connected to the positive electrode side and the negative electrode side of the DC power supply via the first lamp socket.
- the two base pins protrude from the first base at a wider interval than the interval between the two base pins defined by the G13 type base.
- a latch portion extending laterally is provided at each tip of the two cap pins.
- the latch portions of the two cap pins are bent in opposite directions.
- the second terminal is a single cap pin.
- the tip of the second terminal is formed in a shape that is long in the mounting direction of the second lamp socket.
- the end face of the first base is provided with recesses on both sides of the central portion in the radial direction, and the first terminal is provided in the central portion.
- At least one of the first base and the second base is formed so as to cover an end portion of the straight pipe in a state in which the movement of the straight pipe is allowed.
- the lamp socket set of the present invention includes first and second lamp sockets to which the straight tube LED lamps are mounted.
- the first lamp socket includes a first base receiving portion on which the first base is mounted.
- the second lamp socket includes a second base receiving portion on which the second base is mounted.
- each of the first and second lamp sockets includes a mounting structure for rotating and mounting the straight tube LED lamp.
- the first base receiving portion has an insertion groove into which two base pins constituting the first terminal are inserted, and a rotor that is rotated in accordance with the rotation of the straight pipe; Two contactors for power feeding are provided as the power feeding terminals that are electrically connected to the base pin when the rotor is rotated.
- the second base receiving portion includes an insertion groove into which one base pin constituting the second terminal is inserted, and the ground terminal that is disposed in the insertion groove and connected to the second terminal. A grounding contact is provided, and the second terminal is rotatable in a state where the second terminal is in contact with the grounding contact.
- the grounding contactor has a function of performing electrical connection and mechanical holding with the second terminal.
- the lamp socket set of the present invention includes first and second lamp sockets to which straight tube LED lamps are mounted.
- the first lamp socket includes a first base receiving portion on which the first base is mounted.
- the second lamp socket includes a second base receiving portion on which the second base is mounted.
- the first base receiving portion includes a rotor having an insertion groove into which the first terminal is inserted and rotated in accordance with the rotation of the straight pipe, and the power feeding terminal is rotated by the rotor. In this case, it is electrically connected to the first terminal.
- a convex portion is provided at a portion of the first lamp socket corresponding to the concave portion of the first base.
- an insertion groove into which one base pin constituting the second terminal is inserted, and the ground terminal that is disposed in the insertion groove and connected to the second terminal A ground contact is provided, and the second terminal is rotatable in a state where the second terminal is in contact with the ground contact.
- the lamp socket set of the present invention includes first and second lamp sockets to which straight tube LED lamps are mounted.
- the first lamp socket is configured to restrict movement of the straight tube LED lamp in the longitudinal direction.
- the second lamp socket is configured to allow movement of the straight tube LED lamp in the longitudinal direction.
- the lamp socket set of the present invention includes first and second lamp sockets to which straight tube LED lamps are mounted.
- the first lamp socket is formed with an insertion part through which the first terminal of the straight tube LED lamp can be inserted, and a dimension that is in communication with the insertion part and narrower than the latch part of the first terminal and through which the first terminal can pass. And a feeding contact as the feeding terminal electrically connected to the first terminal outside the passing portion through which the first terminal passes.
- the lighting fixture of the present invention includes a lamp socket set including first and second lamp sockets, and a straight tube LED lamp mounted on the lamp socket set.
- FIG. 2 is a cross-sectional view taken along line AA in FIG.
- FIG. 3 is a sectional view taken along line BB in FIG.
- FIG. 2 is a sectional view taken along line CC in FIG. 1. It is a figure for demonstrating the attachment state to the lighting fixture of a straight tube
- FIG. 7A and 7B are external perspective views of a straight tube LED lamp of the second embodiment and a lamp socket set used therefor.
- FIG. 8 shows a straight tube type LED lamp and a lamp socket set same as above
- FIG. 8A is an external perspective view in which the first base for power supply and the first lamp socket are enlarged
- FIG. 8B is a second base for grounding and a second one. It is the external appearance perspective view which expanded the lamp socket. It is an external appearance perspective view of the lighting fixture using the straight tube
- FIG. 10A is a front view
- FIG. 10B is a top view
- FIG. 10C is a right side view.
- FIG. 12A is a front view
- FIG. 12B is a top view
- FIG. 12C is a right side view.
- 15A and 15B are each an enlarged perspective view of a main part of a straight tube LED lamp of one embodiment.
- FIG. 16A is a front view
- FIG. 16B is a top view
- FIG. 16C is a right side view.
- FIG. 19A is a side view before installing a straight tube
- FIG. 19B is a side view which mounted
- FIG. 19A is a side view before installing a straight tube
- FIG. 19B is a side view which mounted
- 2nd lamp socket which shows the lighting fixture of one Embodiment, and a perspective view of a part of straight tube
- a straight tube LED lamp (hereinafter referred to as “lamp”) 10 includes a straight tube 12 in which a plurality of light emitting diodes (hereinafter referred to as “LEDs”) 110 are housed. And a first base 14 for power supply connection to the plurality of LEDs 110 and a second base 15 for grounding.
- the first base 14 is provided on one axial end side of the straight pipe 12, while the second base 15 is provided on the other axial end side of the straight pipe 12.
- the plurality of LEDs 110 are included in the LED module 11.
- the straight pipe 12 includes a heat sink 120 and a cover 125.
- the LED module 11 has a long linear substrate 111.
- a plurality of LEDs 110 are mounted, for example, in a straight line along the longitudinal direction of the substrate 111, and a temperature fuse 114 and a current fuse 115 are mounted one by one. Yes.
- the plurality of LEDs 110, temperature fuses 114, and current fuses 115 are electrically connected, for example, in series by a wiring pattern 116 formed on the mounting surface 112 of the substrate 111.
- the substrate 111 may be, for example, a metal base printed wiring board, a glass composite substrate, a glass epoxy substrate, or the like. In order to efficiently conduct the heat generated in the LED 110 to the heat sink 120, it is preferable that the substrate 111 has high thermal conductivity.
- the LED 110 is, for example, a surface mount (SMD) type white LED.
- SMD surface mount
- the LED 110 is not limited to the surface-mount type, and for example, an LED chip may be flip-chip mounted or wire-bonded mounted on the substrate 111, and the LED chip may be sealed with a phosphor-dispersed resin.
- the LED chip emits blue light
- the phosphor-dispersed resin is a silicone resin
- the phosphor is a yellow-green phosphor (for example, (Ba, Sr) 2 SiO 4 : Eu 2+ or Y 3 ( al, Ga) 5 O 12: Ce 3+) and red phosphor (Sr 2 Si 5 N 8: Eu 2+ and (Ca, Sr) S: Eu 2+ and (Ba, Sr, Ca) AlSiN 3: Eu 2+ ).
- the heat sink 120 is made of, for example, long linear aluminum, and is arranged on the back surface 117 (the surface opposite to the mounting surface 112) of the substrate 111 so as to be aligned with the substrate 111 in the longitudinal direction. It is fixed to the substrate 111 by screwing or the like.
- the heat sink 120 and the LED module 11 are in thermal contact, and heat generated by the LED 110 is conducted to the heat sink 120 via the substrate 111 and is radiated from the heat sink 120 by radiation. By bringing the heat sink 120 and the substrate 111 into surface contact, a high heat dissipation effect can be obtained.
- the heat sink 120 is not limited to an aluminum one, but preferably has good thermal conductivity and is lightweight. Further, the heat sink 120 may have any shape, but preferably has a shape that does not block the light emitted from the LED module 11.
- the cover 125 is, for example, a long shape having a substantially arc-shaped cross section, and is arranged with the heat sink 120 aligned in the longitudinal direction, and has a pair of side end portions.
- the LED module 11 is attached to the heat sink 120.
- the cover 125 is made of, for example, a resin such as polycarbonate or a light-transmitting material such as glass. Note that glass is suitable as a material for the cover 125 because it has a high thermal conductivity (about five times that of polycarbonate) and has a high heat dissipation effect for suppressing the temperature rise of the LED.
- the first base 14 has a cap-shaped main body 141 and a pair of base pins 142 and 143, and is arranged on one end (first end) in the longitudinal direction of the straight pipe 12.
- the main body 141 is made of, for example, a heat-resistant synthetic resin such as silicon resin.
- the pair of cap pins 142 and 143 are made of metal such as aluminum or copper, for example, and are implanted in the main body 141 by press fitting so as to penetrate through holes 144 and 145 provided in the main body 141.
- the wiring pattern 116 and the lead wires 146 and 147 are electrically connected.
- the second base 15 has a cap-shaped main body 151, a pair of base pins 152 and 153, and a conductive member 154, and is disposed on the other end (second end) in the longitudinal direction of the straight pipe 12.
- the main body 151 is made of a heat-resistant synthetic resin such as silicon resin, for example.
- the pair of cap pins 152 and 153 are made of metal such as aluminum or copper, for example, and are implanted in the main body 151 by press-fitting so as to penetrate through holes 155 and 156 provided in the main body 151.
- the conductive member 154 is a substantially rectangular plate-like member having conductivity, and is disposed on the heat sink 120 side of the main body 151, and is fixed to the main body 151 by, for example, bonding or screwing.
- the conductive member 154 is provided with through holes 157 and 158 at positions corresponding to the through holes 155 and 156 of the main body 151, and the pair of cap pins 152 and 153 are formed in the through holes 157 and 158 of the conductive member 154. In the inserted state, it is electrically connected to the conductive member 154 by, for example, soldering, welding, adhesion with a conductive adhesive, or the like.
- the surface 159 of the conductive member 154 on the heat sink 120 side is in surface contact with the heat sink 120, and the conductive member 154 and the heat sink 120 are electrically connected by this contact.
- the electrical connection between the conductive member 154 and the heat sink 120 is not limited to a simple contact, and is connected not only electrically but also mechanically, for example, by soldering, welding, adhesion with a conductive adhesive, or the like. It may be a configuration.
- the conductive member 154 is not essential to the present invention, and the presence or absence of the conductive member 154 does not matter as long as the heat sink 120 and the base pins 152 and 153 are electrically connected. Therefore, for example, the base pins 152 and 153 and the heat sink 120 may be directly electrically connected.
- FIG. 5 is a diagram for explaining a state in which the straight tube LED lamp is attached to a lighting fixture.
- the lighting fixture 19 includes a housing 191, a first lamp socket 17, a second lamp socket 18, and a lighting circuit 190.
- the lighting fixture 19 includes first and second lamp sockets 17 and 18 to which the straight tube LED lamp 10 is mounted as a lamp socket set (system).
- the housing 191 has, for example, a substantially box shape with an open bottom surface, the top surface 191a is a mounting surface for a ceiling or the like, the inner surface 191b is a light reflecting surface, and the lamp 10 is accommodated therein. ing.
- a lighting circuit 190 is attached to the upper surface 191a of the casing 191.
- the first lamp socket 17 and the second lamp socket 18 are attached inside the casing 191 so as to face each other.
- the first lamp socket 17 includes leaf spring-shaped power feeding contacts 171 and 172 that are electrically connected to the base pins 142 and 143.
- the power supply contacts 171 and 172 have a U-shaped cross section in which the center of each of both side portions is bent inward.
- the base pins 142 and 143 are inserted into the pin holes 173 and 174 provided in the first lamp socket 17, the base pins 142 and 143 and the power feeding contacts 171 and 172 are electrically connected.
- the first base 14 is provided with the first terminals (that is, the base pins 142 and 143) for electrical connection with the power supply terminals (that is, the power supply contacts 171 and 172) of the first lamp socket 17. Yes.
- the lighting circuit 190 converts a DC voltage from a commercial AC power source into a DC voltage as a DC power source, supplies the DC voltage to the first base 14 of the lamp 10 via the first lamp socket 17, and turns on the LED 110. .
- the lighting circuit 190 and the commercial AC power supply are connected via a power supply line 192, and the lighting circuit 190 and the pair of power supply contacts 171 and 172 of the first lamp socket 17 are connected via a power supply line 193.
- the power supply line 193 is branched to two wirings 193a and 193b on the side of the power supply contacts 171 and 172, and is electrically connected to the power supply contacts 171 and 172, respectively.
- FIG. 6 is a circuit diagram of a straight tube LED lamp and a lighting fixture.
- the number of LEDs 110 is omitted.
- the lighting circuit 190 includes, for example, a constant current DC circuit 190a.
- the constant current DC circuit 190a may be configured using, for example, a rectifier diode, a smoothing capacitor, or the like.
- the second lamp socket 18 incorporates leaf spring-like grounding contacts 181 and 182 that are electrically connected to the cap pins 152 and 153.
- each of the grounding contacts 181 and 182 has a U-shaped cross section in which the center of both side portions is bent inward.
- the base pins 152 and 153 are inserted into the terminal holes 183 and 184 provided in the second lamp socket 18, the base pins 152 and 153 and the grounding contacts 181 and 182 are electrically connected.
- the second base 15 is provided with second terminals (base pins 152, 153) for electrical connection with the ground terminals (that is, the ground contacts 181, 182) of the second lamp socket 18. .
- the grounding contacts 181 and 182 are grounded via a ground wire 194.
- the ground wire 194 is branched to two conductive wires 194a and 194b on the ground contact 181 and 182 side, and is electrically connected to the ground contacts 181 and 182 respectively.
- the second lamp socket 18 is held by a socket holding member 16 attached to the inner surface 191b of the housing 191.
- the socket holding member 16 urges the second lamp socket 18 toward the first lamp socket 17 (for example, springs) 161 and 162, and moves the second lamp socket 18 in the lamp longitudinal direction within a certain range.
- the second lamp socket 18 When attaching the lamp 10 to the luminaire 19, first, the second lamp socket 18 is inserted into the second lamp socket 18 with the second cap 15 while inserting the cap pins 152, 153 of the second cap 15 into the terminal holes 183, 184 of the second lamp socket 18. 1 Move in a direction away from the lamp socket 17. Thereby, the distance between the 2nd lamp socket 18 and the 1st lamp socket 17 spreads. Next, the lamp 10 is moved to the first lamp socket 17 side, the base pins 142 and 143 of the first base 14 are inserted into the pin holes 173 and 174 of the first lamp socket 17, and the first base 14 is inserted into the first lamp socket. 17 is attached. Since the second lamp socket 18 is urged toward the first lamp socket 17 by the urging bodies 161 and 162, the lamp 10 is held by the second lamp socket 18 and the first lamp socket 17.
- the base pins 142 and 143 and the power feeding contacts 171 and 172 are electrically connected, so that a DC voltage is input from the lighting fixture 19 to the first base 14.
- the heat sink 120 is grounded via the conductive member 154, the base pins 152 and 153, the grounding contacts 181 and 182, and the ground wire 194.
- the heat sink 120 Since the heat sink 120 is made of aluminum, it has conductivity. Therefore, current may flow through the heat sink 120 due to leakage of the LED module 11 and the lighting circuit 190 or the like. However, in a state where the lamp 10 is attached to the lighting fixture 19, the heat sink 120 is grounded and has no potential. Therefore, there is no electric shock even when the heat sink 120 is touched.
- the cover 125 is made of a conductive material, since the cover 125 is attached to the heat sink 120, it is in a grounded state, and there is no risk of electric shock even if the cover 125 is touched.
- the straight pipe is configured by the heat sink as the conductive member and the cover, but the straight pipe according to the present invention is not limited to this configuration.
- the entire straight pipe may be a conductive member, or the straight pipe may be configured not to function as a heat sink.
- a conductor conductive member
- a conductor conductive member
- a conductor such as a heat sink, a reflector, or a common mechanism thereof in an insulating glass tube or a resin tube.
- there is no problem in normal use even if the conductor is not electrically connected to the second terminal of the second cap.
- the second base has a plurality of base pins, for example, two base pins, but the second base preferably has one base pin as the second terminal.
- the ground terminal of the second lamp socket is not limited to a plurality of ground contacts (for example, two ground contacts), and the second lamp socket desirably has one ground contact as a ground terminal.
- the LED module is configured by a single substrate.
- the present invention is not limited to this, and the LED module may be configured by electrically connecting and connecting two or more substrates.
- the number of LEDs constituting the LED module is also arbitrary.
- all of the plurality of LEDs are connected in series.
- the present invention is not limited to this, and a predetermined number of LEDs connected in series are connected in parallel, or a predetermined number of LEDs are connected in parallel. You may connect what was done in series, what is called series-parallel connection.
- the light scattering agent may be applied to the inner peripheral surface or outer peripheral surface of the cover.
- alumina powder as a light scattering agent may be applied to the inner peripheral surface.
- FIG. 7A and 7B are external perspective views of a straight tube LED lamp 10 for solving the above-described problems.
- similar elements are assigned the same reference signs as in the first embodiment.
- the lamp 10 includes a single straight tube 22 made of a synthetic resin material having translucency.
- the straight tube 22 may be a glass tube.
- a first base 14 for feeding is provided on one end side of the straight pipe 22 in the axial direction, and a second base 15 for grounding is provided on the other end side of the straight pipe 22 in the axial direction.
- the straight tube 22 contains a printed circuit board (for example, see FIG. 1) that is slightly shorter in length than the straight tube 22, and a plurality of LEDs are arranged at predetermined intervals on the mounting surface of the substrate. Open and implemented.
- the substrate is attached to a conductor (conductive member) such as a heat sink, a reflector, or a common mechanism thereof and placed in the straight tube 22.
- the conductor may be electrically connected to the second terminal of the second base 15 or may not be electrically connected.
- FIG. 8A is a perspective view of an essential part in which the first base 14 is enlarged.
- the end face of the first base 14 is provided with concave portions 14a and 14a that are recessed in a semicircular shape on both sides of the central portion in the radial direction, and the central portion has a substantially rectangular parallelepiped protruding portion that protrudes forward from the concave portion 14a.
- 14b is provided.
- the projecting portion 14b is provided with two cap pins 142 and 143 that are formed in a round bar shape with a metal material and project in the axial direction at symmetrical positions with respect to the central axis of the straight tube 22. .
- the two cap pins 142 and 143 are electrically connected to the above-described substrate inside the straight pipe 22 through, for example, lead wires.
- the DC voltage input from the base pins 142 and 143 is supplied to the LED through the full-wave rectifier, and any of the base pins 142 and 143 is connected to the positive side of the DC power source. Even in this case, a forward current flows through the LED.
- the base pins 142 and 143 are arranged in a direction orthogonal to the mounting surface 112 of the substrate 111 as shown in FIG. 3, but in the second embodiment, the base pins 142 and 143 are arranged. Are arranged in a direction parallel to the mounting surface of the substrate.
- FIG. 8B is a perspective view of an essential part in which the second base 15 is enlarged.
- the end face of the second base 15 has a substantially disc shape, and one base pin 152 as a second terminal protrudes from the center of the end face.
- the second terminal includes a shaft portion 152a and a latch portion (cam plate) 152b.
- the shaft portion 152a is formed in a round bar shape from a metal material, and protrudes in the axial direction.
- the latch portion 152b is made of metal, and the shape seen from the axial direction is formed in an elliptical shape in which the mounting direction to the first and second lamp sockets 27 and 28 is the major axis direction, and is provided integrally with the shaft portion 152a. ing.
- the major axis direction of the latch portion 152b is parallel to the direction in which the two cap pins 142 and 143 are arranged.
- the lamp socket set to which the lamp 10 is mounted includes a power supply first lamp socket 27 having a first base receiving portion to which the first base 14 is mounted and a second base receiver to which the second base 15 is mounted. It comprises a second lamp socket 28 for grounding provided with a portion.
- the first lamp socket 27 includes a body 270, a rotor 275 rotatably attached to the body 270, and a pair of power feeding contacts 171 and 172 housed in the body 270. (See FIG. 10A).
- the body 270 is formed of a synthetic resin into a substantially rectangular parallelepiped shape, and has a first surface (an outer surface in the attached state), a second surface (an inner surface in the attached state), and four side surfaces therebetween. On the second surface of the body 270 (front surface in FIG. 10A), a recess 271 that is recessed in a round hole shape is opened.
- One of the side surfaces (the lower side surface in the attached state) is formed in a curved shape such that the center portion of the side surface is convex as compared to both edge portions in contact with both side surfaces.
- An insertion groove 272 for one terminal is provided. The insertion groove 272 is provided at the center of the lower side surface (the upper side surface in FIG.
- the body 270 is provided with a cylindrical support shaft 273 that protrudes from the bottom of the recess 271 (that is, the first surface side) toward the second surface side.
- the support shaft 273 is formed with grooves 273a and 273b aligned with the insertion groove 272.
- the rotor 275 is made of a synthetic resin molded product and has a shaft hole 276 into which the support shaft 273 is fitted.
- the rotor 275 is rotatably arranged around the support shaft 273 by fitting the support shaft 273 into the shaft hole 276.
- a substantially cylindrical tube portion 277 is provided.
- the end surface of the cylindrical portion 277 is substantially at the same position as the second surface of the body 270.
- the cylindrical portion 277 is formed with a single continuous groove that is aligned with the insertion groove 272 and the grooves 273a and 273b and opened to the second surface side in a state of being rotated to a specific position (position shown in FIG. 10A). Insertion grooves 277a and 277a are formed.
- ribs (convex portions) 278 and 278 with insertion grooves 277 a and 277 a interposed therebetween are provided on the end surface of the cylindrical portion 277, and protrude from the second surface side of the body 270.
- the ribs 278 and 278 are formed such that inner surfaces (surfaces facing each other) are flat, and outer surfaces are formed on circumferential surfaces centering on the rotation center of the cylindrical portion 277.
- the interval between the two ribs 278 and 278 is set to be slightly larger than the width of the protruding portion 14b of the first base 14.
- the height dimension of the rib 278 (distance from the end surface of the rotor 275 to the tip of the rib 278) is smaller than the height dimension of the protrusion 14b (distance from the front surface of the recess 14a to the tip surface of the protrusion 14b). It has become.
- the insertion groove 272, the grooves 273a and 273b, and the insertion grooves 277a and 277a are arranged in a line, and the rotor is passed through the insertion groove 272.
- the cap pins 142 and 143 can be inserted into the insertion grooves 277a and 277a of the H.275 or moved outward.
- the rotor 275 is rotated 90 degrees from the position shown in FIG.
- the insertion grooves 277a and 277a are aligned in a direction orthogonal to the direction in which the insertion grooves 272 and the grooves 273a and 273b are aligned.
- both end sides of the insertion grooves 277a and 277a are closed by the peripheral edge of the recess 271 and the outer peripheral surface of the support shaft 273, so that the cap pins 142 and 143 are held in the insertion grooves 277a and 277a.
- the held base pins 142 and 143 are electrically connected to the power feeding contacts 171 and 172 (or 172 and 171), respectively.
- the rotor 275 and the contact for power supply constitute a first base receiving part to which the first base 14 is attached.
- the second lamp socket 28 includes a body 280 and a ground contact 181 housed in the body 280.
- the body 280 is formed in a substantially rectangular parallelepiped shape with a synthetic resin, and has a first surface (an outer surface in the attached state), a second surface (an inner surface in the attached state), and four side surfaces therebetween.
- One of these side surfaces (the lower side surface in the attached state) is formed in a curved surface such that the center portion of the side surface is convex compared to both edge portions in contact with both side surfaces.
- An insertion groove 282 for two terminals is provided.
- the insertion groove 282 is formed from the lower surface (upper surface in FIG. 13) to the second surface of the body 280, and the second terminal (cap pin 152) of the lamp 10 is inserted therein.
- On the back side of the insertion groove 282 on the lower side surface (the upper side surface in FIG.
- a wide portion 282a having a wider groove width than the side close to the second base 15 is provided, and this wide portion 282a.
- the latch portion 152b of the second terminal is inserted into the second terminal.
- the groove width of the wide portion 282a is larger than the minor dimension of the latch portion 152b of the second terminal.
- the groove width of the narrow portion of the insertion groove 282 on the lower side surface of the body 280 is set to be larger than the diameter of the shaft portion 152a and smaller than the short diameter of the latch portion 152b.
- the insertion groove 282 on the lower surface extends to the center of the second surface of the body 280 and is formed up to a position where the second terminal is inserted when the lamp 10 is mounted.
- An elliptical opening 282b that is slightly larger than the latch portion 152b of the second terminal is formed at the end of the insertion groove 282 at the center of the second surface.
- the contact 181 for grounding is formed by bending a strip of a metal material (for example, copper alloy) having good conductivity.
- the ground contact 181 has a U-shaped cross section in which the center of both side portions is bent outward. That is, the contact 181 for grounding includes a center piece 181a fixed to the body 280, contact pieces 181b and 181b protruding upward from both side edges of the center piece 181a, and tip ends of the contact pieces 181b and 181b, respectively. Guide pieces 181c, 181c bent outward are integrally provided.
- each contact piece 181b is bent into a substantially V shape, the middle part of both contact pieces 181b protrudes outward, and the contact 181 for grounding is formed in an inverted ⁇ shape as a whole.
- the ground contact 181 has a space in the insertion groove 282 interposed between the contact pieces 181b and 181b, with the guide piece 181c on the wide portion 282a side and the center piece 181a on the upper side facing the lower side. It is stored in 280.
- a portion of the body 280 provided with the insertion groove 282 and the ground contact 181 constitute a second base receiving portion to which the second base 15 is attached.
- FIG. 9 is an external perspective view of the luminaire 19 including the first and second lamp sockets 27 and 28 described above.
- the lighting fixture 19 is used by being embedded in a ceiling surface.
- a lighting circuit (see FIG. 6) is housed in an elongated rectangular parallelepiped casing 191.
- First and second lamp sockets 27 and 28 are attached to the lower surfaces of both ends in the longitudinal direction of the casing 191 so as to face each other.
- the lamp 10 is attached to the housing 191 by attaching the first cap 14 and the second cap 15 provided at both ends of the lamp 10 to the first lamp socket 27 and the second lamp socket 28, respectively.
- 191b in FIG. 9 is a reflecting plate that reflects light from the LED lamp 10 to the lower illumination space.
- the first base 14 is on the first lamp socket 27 side
- the second base 15 is on the second lamp socket 28 side
- the lamp 10 is mounted in the housing.
- the first and second lamp sockets 27 and 28 are approached from below the body 191.
- the base pins 142 and 143 are inserted into the insertion groove 272 of the first lamp socket 27 and the second terminal (base pin 152) is inserted into the insertion groove 282 of the second lamp socket 28, the first base Fourteen projecting portions 14 b are inserted between the pair of ribs 278 and 278.
- the two cap pins 142 and 143 are inserted into the insertion grooves 277a and 277a, respectively, and the second between the contact pieces 181b and 181b included in the ground contact 181.
- the terminal is inserted.
- the straight tube 22 is rotated 90 degrees so that the LED faces downward, the protrusion 14b pushes the ribs 278 and 278, whereby the rotor 275 rotates together with the straight tube 22, and the base pin 142, 143 is disposed on both sides of the support shaft 273.
- the two cap pins 142 and 143 are electrically connected to two power supply contacts arranged inside the body 270, and the first lamp socket 27 is connected from the lighting circuit (DC power supply). DC power is supplied to the LED.
- the latch portion 152b rotates to a position where the major axis direction is parallel to the horizontal direction, so that both sides of the latch portion 152b in the major axis direction come into contact with the contact pieces 181b and 181b.
- the latch portion 152b is electrically connected to the ground contact 181, the lamp 10 is grounded.
- the left and right contact pieces 181b are formed by both sides of the major axis direction of the latch part 152b. It can be bent outward. Therefore, the latch portion 152b is mechanically held by the elastic force of the left and right contact pieces 181b. In this state, the base pins 142 and 143 are held in the insertion grooves 277 a and 277 a, respectively, so that the first base 14 does not come off from the first lamp socket 27.
- the insertion groove 272 when removing the lamp 10 from the first and second lamp sockets 27, 28, if the straight tube 22 is rotated 90 degrees from the mounted state, the insertion groove 272, the grooves 273a, 273b, and the insertion grooves 277a, 277a are aligned. Are lined up.
- the base pins 142 and 143 can be moved to the outside of the insertion grooves 277 a and 277 a, and the base pins 142 and 143 are moved to the outside of the insertion groove 272 by moving the first base 14 side of the lamp 10 downward. Get out.
- the opening 282b provided at the end of the insertion groove 282 is larger than the second terminal (latch part 152b), and the second terminal (latch part 152b) can be passed through the opening 282b. Therefore, when the lamp 10 is removed, the second terminal is moved downward in the insertion groove 282, so that the second terminal can be directly removed from the lower opening of the insertion groove 282 without pulling the second terminal outward. The lamp 10 can be pulled out and the lamp 10 can be easily removed.
- the ribs 278 and 278 interfere with the end face of the base of the straight tube fluorescent lamp. It will not be installed by mistake.
- the lamp 10 of this embodiment includes the first base 14 on one end side in the axial direction of the straight tube 22 and the second base 15 on the other end side in the axial direction.
- the first base 14 is provided with first terminals (base pins 142 and 143) that are electrically connected to the power feeding contacts of the first lamp socket 27, and the second base 15 has a second lamp.
- a second terminal (a cap pin 152 with a latch portion 152b) that is electrically connected to the ground contact 181 of the socket 28 is provided.
- the shape of the latch portion 152b provided in the second terminal as viewed from the axial direction is formed in an elongated shape in the mounting direction to the second lamp socket 28.
- the horizontal dimension of the latch portion 152b is smaller than when the straight tube 22 is rotated 90 degrees.
- the force required for inserting the latch portion 152b between the pieces 181b and 181b can be reduced.
- the horizontal dimension of the latch portion 152b increases, and the amount of bending of the contact pieces 181b and 181b can be increased. The force for holding the terminal can be increased.
- the lamp socket set to which the lamp 10 is mounted includes a first lamp socket 27 having a first base receiving portion to which the first base 14 is mounted and a second base receiving portion to which the second base 15 is mounted. And a second lamp socket 28 provided.
- the lamp socket set to which the lamp 10 is mounted is composed of the first lamp socket 27 and the second lamp socket 28, so that straight tube fluorescent lamps having the same shape of caps at both ends are erroneously mounted. The possibility can be reduced.
- the end face of the first base 14 is provided with concave portions 14a and 14a on both sides of the central portion in the radial direction, and two base pins 142 and 143 (first terminals) are provided on the projecting portion 14b provided in the central portion. Is provided.
- the rotor 275 of the first lamp socket 27 is provided with ribs 278 and 278 at portions corresponding to the recesses 14 a and 14 a of the first base 14.
- the first base receiving part of the first lamp socket 27 has insertion grooves 277a and 277a into which the base pins 142 and 143 are inserted, and a rotor 275 that is rotated according to the rotation of the straight tube 22, and this rotation. And a power supply contact that is electrically connected to the cap pins 142 and 143 when the child 275 is rotated.
- a grounding contact 181 that performs electrical connection with the second terminal and mechanical holding is provided in the second base receiving portion provided in the second lamp socket 28.
- the second base receiving portion is provided with an insertion groove 282 into which the second terminal is inserted, and a ground contact 181 disposed in the insertion groove 282 and electrically connected to the second terminal.
- the second terminal is rotatable with the second terminal in contact with the ground contact 181.
- the insertion groove 282 is provided with a wide portion 282 a having a wider groove width on the first surface side of the body 280 than the side closer to the second base 15 in the axial direction of the straight pipe 22.
- an opening 282b larger than the second terminal is provided at the end of the insertion groove 282.
- the second terminal can be removed through the opening 282b without passing through the insertion groove 282, and the lamp 10 can be easily removed. Can do.
- the latch portion 152b of the second terminal is formed in a rectangular shape when viewed from the axial direction, as shown in FIG. 15A.
- 16 and 17 show a second lamp socket 28 in which a second base 15 having the second terminal is mounted.
- the opening 282 b of the second lamp socket 28 opens in a rectangular shape at the end of the insertion groove 282 on the second surface of the body 280.
- the opening 282b is formed to have a slightly larger size than the latch portion 152b of the second terminal shown in FIG. 15A.
- the rectangular latch portion 152b is moved forward through the opening 282b. Can be pulled out.
- the latch portion 152b is formed in a shape having rounded rectangular corners, and is smaller than the opening 282b shown in FIGS.
- the first terminal of the first base of the present invention is not limited to the round bar-shaped base pins 142 and 143, and may be base pins (blade plugs) 242 and 243 having a shape as shown in FIG. .
- the base pins 242 and 243 shown in FIG. 18 are formed by bending a strip-shaped sheet metal, and the base side is arranged in parallel to the lamp axis direction.
- the tip ends of the two cap pins 242 and 243 are bent substantially at right angles to the outer side (the side opposite to the direction toward the central axis) to form latch portions 242b and 243b.
- the straight tube LED lamp may move in the longitudinal direction along with the bending, thermal expansion, and thermal contraction of the straight tube LED lamp.
- FIG. 19 shows a lighting fixture 19 for solving the above-described problem.
- the lighting fixture 19 is an embedded lighting fixture for one or a plurality of straight tube fluorescent lamps, and includes one or a plurality of straight tube LED lamps 10.
- the lighting fixture 19 is applicable not only to an embedded lighting fixture but also to a direct attachment lighting fixture.
- the luminaire 19 includes a long case 191 (see FIG. 9) having an open bottom surface that is embedded in a ceiling surface, and first and second lamp sockets 37 that are opposed to both ends of the case 191 in the longitudinal direction. , 38 and a lighting circuit (for example, see FIG. 6).
- the first and second caps 14 and 15 of the lamp 10 are attached to the first and second lamp sockets 37 and 38, respectively.
- the lighting circuit is a dedicated power source that is disposed in the housing and lights the lamp 10.
- the lighting fixture 19 of the present embodiment uses, for example, the housing 191 of an existing lighting fixture that uses a straight tube fluorescent lamp as it is, and the lamp 10 and the first and second lamp sockets 37 dedicated to the lamp 10. , 38 and the lighting circuit 19 are renewed.
- the existing casing 191 for the straight fluorescent lamp is used. This is used as a luminaire 19 in which the lamp 10, the first and second lamp sockets 37, 38 and the lighting circuit are combined.
- the lamp 10 includes a straight tube 22 having a tube length and a tube diameter similar to those of a straight tube fluorescent lamp and having the same appearance as that of the straight tube fluorescent lamp.
- the LED module 11 housed in is provided.
- the lamp 10 includes a translucent straight tube 22 and first and second caps 14 and 15 provided to cover both ends of the straight tube 22.
- Each of the first and second caps 14 and 15 is an end cap or an end cover.
- the straight pipe 22 is formed in a long cylindrical shape by a resin material such as acrylic resin having translucency and diffusivity, for example.
- Each of the first and second caps 14 and 15 is made of, for example, an insulating synthetic resin material or metal material. Each of the first and second caps 14 and 15 may have any shape as long as the end of the straight pipe 22 can be covered, and a part of the straight pipe 22 may be included. Further, from the end face of the first base 14, a first terminal (that is, the base pins 142 and 143) electrically connected to the LED module 11 protrudes. These cap pins 142 and 143 are constituted by pins protruding in parallel along the longitudinal direction of the lamp 10 in the same manner as the pair of cap pins protruding from the cap of the straight tube fluorescent lamp.
- the LED module 11 includes, for example, a plurality of substrates 111a on which a plurality of LEDs 110 are mounted, and a mounting plate 320 to which these substrates 111a are attached.
- the mounting plate 320 is a conductor (conductive member) such as a heat sink, a reflecting plate, or a common mechanism thereof. Similar to the second embodiment, this conductor may or may not be electrically connected to the second terminal of the second base 15. Then, the LED module 11 is inserted from one end of the straight pipe 22, and then the first and second caps 14 and 15 are attached to both ends of the straight pipe 22. Contained.
- an SMD (SurfaceurMount Device) package with a connection terminal on which an LED chip is mounted is used.
- an LED chip that emits blue light is arranged in the package, and this LED chip is mixed with a yellow phosphor that emits yellow light by being excited by a part of the blue light from the LED chip. Sealed with a phosphor layer such as silicone resin. Therefore, the surface of the phosphor layer becomes a light emitting surface, and white light is emitted from this light emitting surface.
- the positional relationship between the cap pins 142 and 143 and the light emitting surface of the LED 110 of the LED module 11 is such that the light emitting surface of the LED 110 faces downward when the lamp 10 is correctly mounted between the first and second lamp sockets 37 and 38. It is set so that light can be irradiated in a predetermined irradiation direction.
- the first lamp socket 37 is a power feeding socket, and includes an insulating resin body 370 and power feeding contacts 171 and 172 housed in the body 370.
- a power supply terminal is provided in the body 370.
- a pair of insertion holes are formed in a lamp mounting surface that is an inner surface facing the second lamp socket 38, and power supply contacts 171 and 172 are arranged inside each insertion hole. .
- the base pins 142 and 143 of the lamp 10 are electrically connected to the power supply contacts 171 and 172 by inserting the base pins 142 and 143 into the pair of insertion holes.
- the lamp mounting surface of the body 370 is formed with a vertical groove communicating with the tip of the body 370, and a pair of arc grooves are formed in communication with the vertical groove.
- Children 171 and 172 are arranged. In this case, by rotating the lamp 10 in which the cap pins 142 and 143 are inserted into the longitudinal grooves, the cap pins 142 and 143 are moved to the arc grooves and are electrically connected to the power feeding contacts 171 and 172. It has become.
- the second lamp socket 38 is a socket for grounding and holding, and has a resin body 380 having an insulating property.
- the body 380 allows the second base 15 side of the lamp 10 to move in the longitudinal direction.
- a movement allowance portion 36 is formed to hold it.
- the movement allowing portion 36 is formed by a circular holding hole 361 penetrating from the lamp mounting surface of the body 380 to the outer end surface, and the second base 15 side of the lamp 10 is inserted into the holding hole 361 so as to be movable in the longitudinal direction. .
- the interval at which the lamp mounting surfaces of the first and second lamp sockets 37 and 38 face each other is set smaller than the interval between the outer end surfaces of the first and second caps 14 and 15 of the lamp 10. Therefore, the second base 15 side of the lamp 10 mounted between the first and second lamp sockets 37 and 38 is engaged with the holding hole 361 of the second lamp socket 38.
- the engagement dimension in the longitudinal direction between the lamp 10 and the second lamp socket 38 in the mounted state is such that the vicinity of the center in the longitudinal direction of the lamp 10 is bent downward between the first and second lamp sockets 37, 38, or Even when the lamp 10 is thermally contracted when the temperature is low, the lamp 10 is set to a size that does not drop out of the second lamp socket 38.
- the lighting circuit receives a commercial AC power supply, converts AC power into DC power, and supplies the DC power to the LED module 11 of the lamp 10 through the first terminal of the first lamp socket 37.
- the lighting device for the straight tube fluorescent lamp is removed from the casing 191 or the straight tube fluorescent lamp
- the power line for supplying commercial AC power is disconnected from the straight tube fluorescent lamp lighting device, and a dedicated lighting circuit for the lamp 10 is newly attached to the housing 191 and the power source is supplied to the lighting circuit. Connect the wires.
- the straight fluorescent lamp socket is removed from the casing 191, the first and second lamp sockets 37 and 38 are attached to the casing 191, and the lighting circuit and the first lamp socket 37 are electrically connected by an electric wire.
- the lamp 10 is mounted between the first and second lamp sockets 37 and 38 of the housing 191. At this time, the second base 15 side of the lamp 10 is inserted into the holding hole 361 of the second lamp socket 38, and after the lamp 10 is entirely moved to the second lamp socket 38 side, the first base 14 of the lamp 10 is moved from the first base 14.
- the protruding cap pins 142 and 143 are inserted into the insertion holes of the first lamp socket 37 and electrically connected to the power supply terminals (power supply contacts 171 and 172). At this time, the lamp 10 is mounted so that the light emitting surface of the LED 110 of the LED module 11 faces downward, which is the illumination direction opposite to the housing 191.
- the first base 14 of the lamp 10 is supported by the first lamp socket 37, and the movement including the longitudinal direction of the lamp 10 is performed.
- the second base 15 of the lamp 10 is supported by the second lamp socket 38 and the movement of the lamp 10 in the longitudinal direction is allowed.
- the lamp 10 mounted between the first and second lamp sockets 37 and 38 is bent downward near the center in the longitudinal direction due to its weight, or thermally contracted when the lamp 10 is at a low temperature. Since the second base 15 side of the lamp 10 is allowed to move in the longitudinal direction with respect to the second lamp socket 38, the second base 15 side of the lamp 10 becomes the second lamp due to the bending or thermal contraction of the lamp 10. Although it moves in the direction away from the socket 38, as described above, the engagement dimension in the longitudinal direction of the lamp 10 and the second lamp socket 38 in the mounted state is not less than the dimension in which the lamp 10 does not fall out of the second lamp socket 38. Therefore, the lamp 10 is securely held without dropping from the second lamp socket 38.
- the lamp 10 When the lamp 10 is turned on, the lamp 10 is thermally expanded due to the heat of the LED 110. In particular, the expansion of the lamp 10 in the longitudinal direction is most noticeable due to the thermal expansion of the resin straight tube 22. At this time, since the second base 15 side of the lamp 10 is allowed to move in the longitudinal direction with respect to the second lamp socket 38, the extension of the lamp 10 in the longitudinal direction due to thermal expansion can be absorbed. In addition, the first and second lamp sockets 37 and 38 are not loaded and are not damaged.
- the lamp 10 includes the first lamp socket 37 that restricts the movement of the lamp 10 in the longitudinal direction, and the second lamp that allows the movement of the lamp 10 in the longitudinal direction. Mounting between the first and second lamp sockets 37 and 38 in a state in which the lamp 10 is allowed to move in the longitudinal direction due to bending, thermal expansion and contraction, by being mounted between the first and second sockets 38 and 38. The lamp 10 can be reliably held.
- the second cap 15 side of the lamp 10 and the second lamp socket 38 constitute a mounting structure that is mounted rotatably around the tube axis of the lamp 10.
- the rotation of the lamp 10 can be allowed and the resistance to rotate the lamp 10 can be increased. Can be reduced, and operability can be improved. That is, because of this mounting structure, the second base 15 of the lamp 10 has no symmetry, so even if the first base 14 has symmetry because the base pins 142 and 143 protrude, it is not manufactured. Therefore, it is not necessary to consider the orientation relationship with the second base 15, and the productivity can be improved.
- the lighting fixture has a ground connection structure shown in FIG.
- the second base 15 of the lamp 10 has a second terminal 152, which has a shaft portion 152 a protruding from the center of the end face of the second base 15 of the lamp 10 and a disc shape formed at the tip thereof. It is comprised from the latch part 152b as a hook part. From the second surface of the body 380 of the second lamp socket 38, as in the second lamp socket 18 shown in FIG. 5, a lamp mounting portion 381 that is biased toward the second base 15 by the biasing body protrudes. .
- the lamp attachment portion 381 is formed with an insertion portion 381a between the end surface of the lamp attachment portion 381 and the second surface of the body 380 so that the latch portion 152b as a hooking portion can be inserted. Further, an insertion groove 382 that is communicated with the insertion portion 381a and through which the shaft portion 152b passes in the vertical direction is formed on the end surface of the lamp mounting portion 381.
- the latch portion 152b protruding from the second base 15 of the lamp 10 is inserted into the insertion portion 381a of the lamp mounting portion 381 of the second lamp socket 38 from above, and the shaft portion 152a is inserted. Insert into the insertion groove 382 from above. Thereafter, the lamp mounting portion 381 is pushed into the body 380 against the urging force, and the base pins 142 projecting from the first base 14 of the lamp 10 while moving the lamp 10 toward the second lamp socket 38 as a whole. 143 is inserted into the insertion hole of the first lamp socket 37.
- the latch portion 152b of the second base 15 is hooked on the second lamp socket 38. It can be surely prevented from falling. Therefore, in addition to the ground connection structure, a drop-off prevention structure can also be used. Also in this case, as described above, the second base 15 of the lamp 10 and the second lamp socket 38 use a mounting structure that is mounted so as to be rotatable about the tube axis of the lamp 10.
- the lamp 10 includes a polarity control circuit that prevents the base pins 142 and 143 from having positive and negative polarities.
- a polarity control circuit that prevents the base pins 142 and 143 from having positive and negative polarities.
- the cap pins 142 and 143 can be lit regardless of whether they are connected to either the positive power supply contact or the negative power supply contact, or When connected with different polarities, the LED module 11 and the like can be prevented from being affected while not being lit.
- FIG. 22 shows a straight tube LED lamp 10 according to the fourth embodiment.
- the lamp 10 includes a straight tube 22 having a tube length and a tube diameter similar to those of a straight tube fluorescent lamp and having the same appearance as the straight tube fluorescent lamp, and an LED module 11 accommodated in the straight tube 22. ing.
- the lamp 10 includes a translucent straight tube 22 and first and second caps 14 and 15 provided so as to close both ends of the straight tube 22.
- Each of the first and second caps 14 and 15 is a cap or an end cap.
- the straight pipe 22 is formed in a long cylindrical shape by a resin material such as acrylic resin having translucency and diffusivity, for example.
- the first and second caps 14 and 15 are made of, for example, an insulating synthetic resin, and are disk-shaped end surface portions 141 a and 151 a that cover the end surface of the straight pipe 22, and peripheral portions of the end surface portions 141 a and 151 a, respectively. It is formed in the cap shape which has the surrounding surface parts 141b and 151b formed in cyclic
- a pair of base pins (first terminals) 142 and 143 (see FIG. 7) for power supply that are electrically connected to the LED module 11 are provided on the end face of the first base 14 along the longitudinal direction of the lamp 10. Projecting in parallel. On the end face of the second base 15, a base pin (second terminal) 152, which is a ground pin for ground connection, protrudes along the longitudinal direction of the lamp 10 around the tube axis of the lamp 10. Yes.
- the LED module 11 includes, for example, a plurality of elongated substrates 111a on which the LEDs 110 are mounted, and an elongated attachment plate 320 to which the substrates 111a are attached.
- the mounting plate 320 is a conductor (conductive member) such as a heat sink, a reflecting plate, or a common mechanism thereof. Similar to the second embodiment, this conductor may or may not be electrically connected to the second terminal of the second base 15.
- the LED module 11 uses an SMD (Surface ⁇ ⁇ ⁇ ⁇ ⁇ Mount Device) package with a connection terminal on which an LED chip is mounted.
- SMD Surface ⁇ ⁇ ⁇ ⁇ ⁇ Mount Device
- this LED chip is mixed with a yellow phosphor that emits yellow light by being excited by a part of the blue light from the LED chip. Sealed with a phosphor layer such as silicone resin. Therefore, the surface of the phosphor layer becomes a light emitting surface, and white light is emitted from this light emitting surface.
- the mounting plate 320 is made of, for example, metal, and has a length in the longitudinal direction longer than the length in the longitudinal direction of the straight tube 22.
- the mounting plate 320 faces the surface opposite to the surface on which the LEDs 110 are arranged at both ends. It is bent at a substantially right angle.
- a pair of cap pins 142 and 143 are fixed to the outer end surface of the mounting portion 321 at one end of the mounting plate 320.
- a cap pin 152 is fixed to the outer end surface of the mounting portion 322 at the other end of the mounting plate 320. Therefore, the mounting plate 320 of the LED module 11 and each cap pin are integrated.
- the mounting plate 320 and each cap pin (or first terminal) are fixed in an insulated state.
- the base pins 142, 143 and the substrate 111a are electrically connected by lead wires 146, 147 so that power can be supplied from the base pins 142, 143 to the respective LEDs 110 mounted on the substrate 111a.
- the base pin 152 and the ground potential portion of the substrate 111 a are electrically connected by a lead wire 454.
- the first cap 14 and the second cap 15 cover the cap pins 142, 143 and the cap so as to cover both ends of the straight tube 22, respectively. It is fixed to the pin 152 and housed in the lamp 10 constituted by the straight tube 22 and the first and second caps 14 and 15.
- the first base 14 and the base pins 142 and 143 are fixedly coupled by pressing the base pins 142 and 143 into holes formed in the first base 14, for example.
- the second base 15 and the base pin 152 are fixedly coupled by, for example, pressing the base pin 152 into a hole formed in the second base 15. Therefore, the mounting plate 320 of the LED module 11 and the first and second caps 14 and 15 are integrated.
- the straight tube 22 is held between the first and second caps 14 and 15 in a state where it can move in the longitudinal direction and the radial direction within a predetermined range with respect to the LED module 11 and the first and second caps 14 and 15. ing.
- the expansion and contraction of the straight tube 22 is allowed between the end portion of the straight tube 22 and the inner surfaces of the end surface portions 141 a and 151 a of the first and second caps 14 and 15. It has a predetermined gap A + B that can be reduced or eliminated.
- the expansion and contraction of the straight tube 22 is allowed between the outer peripheral surface of the straight tube 22 and the inner peripheral surfaces of the peripheral surface portions 141 b and 151 b of the first and second caps 14 and 15. It has a predetermined gap C + D that can reduce or eliminate the influence.
- the length of the straight pipe 22 in the longitudinal direction is shorter than the length between the inner surfaces at which the end face portions 141a and 151a of the first and second caps 14 and 15 face each other, and the outer diameter of the straight pipe 22 is
- the peripheral surfaces 141b and 151b of the first and second caps 14 and 15 have a smaller dimensional relationship than the respective inner diameters.
- the length of the straight pipe 22 in the longitudinal direction is longer than the length between the front end surfaces of the first and second caps 14 and 15 where the peripheral surface portions 141b and 151b face each other, and the first and second caps 14 and 15
- the inner surface of either one of the end surface portions and the tip surface of the other peripheral surface portion are longer than the lengths facing each other, so that the straight pipe 22 extends from between the peripheral surface portions 141b and 151b of the first and second caps 14 and 15. Is configured not to come off.
- only one end side of the straight pipe 22 may be held in the first base 14 and only the other end side of the straight pipe 22 may be configured to be movable with respect to the second base 15 and the LED module 11.
- the positional relationship between the base pins 142 and 143 and the light emitting surfaces of the LEDs 110 of the LED module 11 is such that each light emitting surface of the LED 110 is in a state where the lamp 10 is mounted in the correct mounting position between the first and second lamp sockets. It is set so that light can be irradiated in a predetermined irradiation direction toward the lower side of the lighting fixture.
- each LED 110 When the lamp 10 is turned on, each LED 110 generates heat, and this heat is transmitted to the LED module 11 and the straight tube 22.
- the straight tube 22 is made of resin, the straight tube 22 is likely to thermally expand significantly due to the heat of each LED 110.
- the thermally expanded straight pipe 22 extends in the longitudinal direction and expands in the radial direction.
- the straight tube 22 is thermally contracted as compared with a high temperature.
- the heat-shrinked straight tube 22 is a peripheral surface portion 141b of the first and second caps 14, 15;
- the straight pipe 22 is disposed between the first and second caps 14 and 15 without being disengaged from between 151 b.
- the first and second caps 14 and 15 that cover the end of the straight tube 22 are integrated with the LED module 11, and the first and second caps 14 and 15 are integrated. Since the straight tube 22 is allowed to move, the LED module 11 and the first and second caps 14 and 15 can be prevented from being affected even if the straight tube 22 is thermally expanded or contracted.
- cap pins are also integrated with the LED module 11, even if the straight tube 22 is thermally expanded and contracted, the connection with the first and second lamp sockets by the cap pins is not affected. Can improve the reliability.
- One end of the straight pipe 22 is fixed to one of the first and second caps 14 and 15, and only the other end of the straight pipe 22 is fixed to the first and second caps 14, 15. It may be configured to be movable with respect to any one of 15 and the LED module 11. Also in this case, the movement of the straight tube 22 due to thermal expansion and contraction can be allowed.
- the lamp 10 may include a polarity control circuit that prevents the base pins 142 and 143 from having positive and negative polarities.
- a polarity control circuit that prevents the base pins 142 and 143 from having positive and negative polarities.
- the cap pins 142 and 143 can be lit regardless of whether they are connected to either the positive power supply contact or the negative power supply contact, or When connected with different polarities, the LED module 11 and the like can be prevented from being affected while not being lit.
- the lamp 10 includes a straight tube 22 having a tube length and a tube diameter similar to those of a straight tube fluorescent lamp and having substantially the same appearance as the straight tube fluorescent lamp, and an LED module (for example, FIG. 20).
- the lamp 10 includes a translucent straight tube 22 and first and second caps 14 and 15 provided to cover both ends of the straight tube 22.
- Each of the first and second caps 14 and 15 is an end cap or an end cover.
- the straight pipe 22 is formed in a long cylindrical shape by a resin material such as acrylic resin having translucency and diffusivity, for example.
- the first and second caps 14 and 15 are made of, for example, an insulating synthetic resin material or metal material.
- the first and second caps 14 and 15 may have any shape as long as they can cover the end of the straight pipe 22, and may include a part of the straight pipe 22.
- the cap pins 142 and 143 protrude sideways with respect to the longitudinal direction of the shaft portions 142 a and 143 a at the shaft portions 142 a and 143 a projecting along the longitudinal direction of the lamp 10 and the tips of the shaft portions 142 a and 143 a.
- Disc-shaped latch portions (connection portions) 142b and 143b are provided.
- the distance between the base pins 142 and 143 that is, the distance E between the centers of the shaft portions 142a and 143a is based on the distance between the pair of base pins of the G13 type base defined in JIS C7709-1 (IEC 60061-1). Widely set.
- one base pin (ground pin, second terminal) 152 for ground connection protrudes along the longitudinal direction of the lamp 10 with the tube axis of the lamp 10 as the center.
- the LED module includes, for example, a plurality of substrates on which the LEDs 110 are mounted, and a mounting plate to which these substrates are attached (see FIGS. 20 and 22). Then, after the LED module is inserted from one end of the straight tube 22, the first and second caps 14, 15 are attached to both ends of the straight tube 22, so that the LED module is accommodated in the lamp 10. ing.
- the LED 110 uses an SMD (Surface Mount) package with a connection terminal on which an LED chip is mounted.
- SMD Surface Mount
- an LED chip that emits blue light is arranged in the package, and this LED chip is mixed with a yellow phosphor that emits yellow light by being excited by a part of the blue light from the LED chip. Sealed with a phosphor layer such as silicone resin. Therefore, the surface of the phosphor layer becomes a light emitting surface, and white light is emitted from this light emitting surface.
- the positional relationship between the cap pins 142 and 143 and the respective light emitting surfaces of the LED 110 of the LED module is such that the respective light emitting surfaces of the LED 110 are positioned downward when the lamp 10 is correctly mounted between the first and second lamp sockets 57 and 38. It is set so that light can be irradiated in a predetermined irradiation direction.
- the first lamp socket 57 is a power feeding socket, and includes an insulating resin body 570 and a power feeding terminal accommodated in the body 570.
- the power supply terminals are, for example, a pair of power supply contacts (see FIG. 19).
- the body 570 has a round hole with a width dimension F through which the latch portions 142b and 143b of the cap pins 142 and 143 of the lamp 10 can be inserted into a second surface (lamp mounting surface) which is an inner surface facing the second lamp socket 38.
- the insertion portions 571 and 572 are formed, and are formed to have a width dimension G that communicates with the insertion portions 571 and 572 and is narrower than the latch portions 142b and 143b of the cap pins 142 and 143 so that the shaft portions 142a and 143a can pass through.
- the passing portions 573 and 574 are formed.
- the width dimension F of the insertion portions 571 and 572 and the width dimension G of the passage portions 573 and 574 have a relationship of F> G.
- the passage portions 573 and 574 are formed in a groove shape along an arc shape so as to allow the cap pins 142 and 143 to rotate around the tube axis of the lamp 10.
- the distance H between the centers of the grooves of the passage parts 573 and 574 is the same as the distance between the base pins 142 and 143, that is, the distance E between the centers of the shaft parts 142a and 143a, and a pair of base pins of the G13 type base. Is set wider than the interval between the pair of passage portions of the holes and grooves of the socket connecting the two.
- the contact for power feeding is accommodated in the body 570, and is located outside the position facing the passage portions 573 and 574 at the position of the passage portions 573 and 574 through which the shaft portions 142a and 143a of the cap pins 142 and 143 pass, respectively (for example, It is arranged so as to be electrically connected to the latch portions 142b and 143b of the cap pins 142 and 143 at positions shifted to the outer diameter side).
- the second lamp socket 38 is a socket for holding and ground connection, and is a resin-made body 380 having an insulating property and a ground terminal accommodated in the body 380.
- a ground contact 181 is provided.
- the body 380 includes a lamp mounting portion 381 that can advance and retreat from a second surface (lamp mounting surface) that is an inner surface facing the first lamp socket 57.
- a lamp mounting portion 381 that can advance and retreat from a second surface (lamp mounting surface) that is an inner surface facing the first lamp socket 57.
- One insertion hole into which the cap pin 152 of the lamp 10 is inserted is formed at the center of the lamp mounting portion 381, and a ground contact 181 electrically connected to the cap pin 152 is disposed inside the insertion hole.
- the lamp mounting portion 381 is urged in a protruding direction from the body 380 by a ground contact 181 disposed in the body 380 or another spring.
- the ground contact 181 is electrically connected to the housing 191 of the lighting fixture 19.
- the socket for the straight tube fluorescent lamp is removed from the casing 191, the first and second lamp sockets 57 and 38 are attached to the casing 191, and the lighting circuit (see FIG. 6) and the first lamp socket 57 are electrically connected by electric wires. Connect to.
- the lamp 10 is mounted between the first and second lamp sockets 57 and 38 of the housing 191. At this time, one cap pin 152 protruding from the second cap 15 of the lamp 10 is inserted into the insertion hole of the lamp mounting portion 381 of the second lamp socket 38, and the body 380 is resisted against urging.
- the latch portions 142b and 143b of the base pins 142 and 143 protruding from the first base 14 of the lamp 10 are respectively inserted into the first lamp socket 57 while being pushed into the second lamp socket 38 side.
- the insertion portions 571 and 572 are inserted and inserted, and the shaft portions 142 a and 143 a of the cap pins 142 and 143 are inserted into the insertion portions 571 and 572.
- the lamp 10 is rotated in the mounting direction around the tube axis, and the shaft portions 142a and 143a of the cap pins 142 and 143 are moved to the passage portions 573 and 574, respectively, so that the lamp 10 is moved to the first and second lamp sockets. It is mounted at a predetermined mounting position between 57 and 38.
- the base pin 152 is connected to the ground contact 181 on the second lamp socket 38 side, and the power supply contact on the first lamp socket 57 side is the base pins 142 and 143, respectively.
- the shaft portions 142a and 143a are electrically connected to the latch portions 142b and 143b of the cap pins 142 and 143 at positions shifted to the outside (for example, the outer diameter side) from positions facing the passage portions 573 and 574 through which the shaft portions 142a and 143a pass. .
- each LED 110 of the LED module is lit. Then, the light from each LED 110 passes through the straight tube 22 and is irradiated in a predetermined irradiation direction below the lighting fixture 19.
- the lamp 10 When the lamp 10 is removed, contrary to the mounting, the lamp 10 is rotated around the tube axis in the removing direction, and the lamp mounting portion 381 is pushed into the body 380 against the urging force. As a whole, the base pins 142 and 143 of the first base 14 are removed from the insertion portions 571 and 572 of the first lamp socket 57 while the first base 14 side of the lamp 10 is moved downward. And the base pin 152 of the second base 15 is removed from the second lamp socket 38.
- the lamp 10 when the lamp 10 is erroneously attached to an existing lighting device for a straight tube fluorescent lamp, the lamp 10 is spaced between a pair of base pins defined by a G13 type base for a straight tube fluorescent lamp. Since the first base 14 with the base pins 142 and 143 projecting at wider intervals is provided and is not compatible with the G13 type base, it is surely prevented from being attached to the socket corresponding to the G13 type base. Can do.
- latch portions 142b and 143b projecting laterally with respect to the longitudinal direction of the base pins 142 and 143 at the tips of the base pins 142 and 143, it is possible to more easily attach to the socket corresponding to the G13 type base. It can be surely prevented.
- the distance between the base pins 142 and 143 is wide, the creepage distance between the base pins 142 and 143 to which positive and negative DC power are respectively supplied can be increased, and insulation can be ensured.
- the first lamp socket 57 to which the first base 14 of the lamp 10 is attached includes the insertion portions 571 and 572 into which the latch portions 142b and 143b of the base pins 142 and 143 of the lamp 10 can be inserted, and these insertion portions 571 and 572.
- the feeding contact accommodated in the first lamp socket 57 is a position facing the passage portions 573 and 574 at the passage portions 573 and 574 through which the shaft portions 142a and 143a of the cap pins 142 and 143 pass. Since it is arranged so as to be electrically connected to the latch portions 142b and 143b of the base pins 142 and 143 at a position shifted to the outer side (for example, the outer diameter side), a straight base pin of the G13 type base is temporarily provided. Even if it can be forcibly inserted into the passage portions 573 and 574, it is possible to reliably prevent the base pin and the contact for power feeding from being electrically connected.
- the cap pins 142 and 143 are respectively arranged at the tips of the shaft portions 142a and 143a protruding along the longitudinal direction of the lamp 10 with respect to the longitudinal direction of the shaft portions 142a and 143a.
- latch portions 342b and 343b which are bent in a substantially L shape in a direction opposite to each other and approaching (approaching) each other. Even in such a configuration, the same effects as those of the fifth embodiment can be obtained.
- the cap pins 142 and 143 are respectively provided at the tips of the shaft portions 142a and 143a protruding along the longitudinal direction of the lamp 10 with respect to the longitudinal direction of the shaft portions 142a and 143a.
- latch portions 442b and 443b which are bent in a substantially L shape in the opposite direction to each other. Even in such a configuration, the same effects as those of the fifth embodiment can be obtained.
- the body 570 of the first lamp socket 57 has a lamp extending from the second surface (lamp mounting surface) that is the inner surface facing the second lamp socket 38 to the tip surface.
- One groove-shaped insertion portion 571 having a width dimension F through which the latch portions 142b and 143b of the ten base pins 142 and 143 can be inserted is formed, communicated with the insertion portion 571, and the latch portions of the base pins 142 and 143 Passing portions 573 and 574 are formed which are narrower than the widths of 142b and 143b and have a width G through which the shaft portions 142a and 143a can pass.
- the width dimension F of the insertion portion 571 and the width dimension G of the passage portions 573 and 574 have a relationship of F> G.
- the passage portions 573 and 574 are formed in a groove shape along an arc shape so as to allow the cap pins 142 and 143 to rotate around the tube axis of the lamp 10.
- the distance H between the centers of the grooves of the passage parts 573 and 574 is the same as the distance between the base pins 142 and 143, that is, the distance E between the centers of the shaft parts 142a and 143a, and connects a pair of base pins of the G13 type base. It is set wider than the interval between the pair of passage portions of the holes and grooves of the socket.
- the power feeding contact (see FIG. 19) is accommodated in the body 570 and faces the passage portions 573 and 574 at the positions of the passage portions 573 and 574 through which the shaft portions 142a and 143a of the cap pins 142 and 143 pass. It arrange
- the first lamp socket 57 can be fitted with the cap pins of the lamp 10 shown in FIGS.
- a cap pin (for example, 142 and 143 in FIG. 23) is inserted into the insertion portion 571 from the distal end side of the body 570, and the lamp 10 is rotated in the mounting direction about the tube axis, thereby FIG.
- the shaft portions 142a and 143a of the cap pins 142 and 143 enter the passage portions 573 and 574 to move, and the lamp 10 is attached to the first lamp socket 57 in a predetermined manner. Can be installed in position.
- the first lamp socket 57 can be used in common for various variations of the cap pins 142 and 143 of the lamp 10 and can improve versatility.
- the lamp 10 may include a polarity control circuit that prevents the base pins 142 and 143 from having positive and negative polarities.
- a polarity control circuit that prevents the base pins 142 and 143 from having positive and negative polarities.
- the cap pins 142 and 143 can be lit regardless of whether they are connected to either the positive power supply contact or the negative power supply contact, or When they are connected with different polarities, it is possible to prevent the LED module from being affected while not being lit.
Abstract
Description
図1および図2に示すように、本実施形態に係る直管形LEDランプ(以下「ランプ」という)10は、内部に複数の発光ダイオード(以下「LED」という)110を収納した直管12と、複数のLED110との給電接続用の第1口金14と、接地用の第2口金15とを含む。第1口金14は、直管12の軸方向一端側に設けられる一方、第2口金15は、直管12の軸方向他端側に設けられる。複数のLED110は、LEDモジュール11に含まれる。直管12は、ヒートシンク120およびカバー125から構成される。
上述の直管形LEDランプが直管形蛍光ランプと同じ寸法および口金を持つ場合、直管形蛍光ランプ用の点灯回路を備えた照明器具に誤って接続される可能性がある。
直管22を透光性を有する合成樹脂材料により形成すれば、直管形LEDランプの撓みや、熱膨張、熱収縮に伴い、直管形LEDランプが長手方向へ移動することがある。
図22に第4実施形態の直管形LEDランプ10を示す。明瞭のため、同様の要素には、第1~第3実施形態で表されたのと同じ符号が割り当てられる。ランプ10は、直管形蛍光ランプと同程度の管長および管径で直管形蛍光ランプと略同じ外観に形成された直管22、およびこの直管22内に収容されたLEDモジュール11を備えている。
図23および24に第5実施形態の直管形LEDランプ10を示す。明瞭のため、同様の要素には、第1~第4実施形態で表されたのと同じ符号が割り当てられる。ランプ10は、直管形蛍光ランプと同程度の管長および管径で直管形蛍光ランプと略同じ外観に形成された直管22、およびこの直管22内に収容されたLEDモジュール(例えば図20参照)を備えている。
Claims (20)
- 内部に複数の発光ダイオードを収納した直管と、
前記直管の軸方向一端側に設けられた、前記複数の発光ダイオードとの給電接続用の第1口金と、
前記直管の軸方向他端側に設けられた接地用の第2口金とを備え、
前記第1口金には、第1ランプソケットの給電端子との電気的接続用の第1端子が設けられ、
前記第2口金には、第2ランプソケットの接地端子との電気的接続用の第2端子が設けられた
ことを特徴とする直管形LEDランプ。 - 導電性部材を更に備え、
前記第2端子は、前記導電性部材と電気的に接続された
ことを特徴とする請求項1記載の直管形LEDランプ。 - 前記導電性部材は、長尺状であり、前記直管の一部を構成することを特徴とする請求項2記載の直管形LEDランプ。
- 前記複数の発光ダイオードは長尺状の基板にその長手方向に沿って実装されてLEDモジュールを構成し、
前記導電性部材は、前記LEDモジュールと熱的に接触したヒートシンクであることを特徴とする請求項3記載の直管形LEDランプ。 - 前記第1端子は、前記第1ランプソケットを介して直流電源の正極側及び負極側にそれぞれ接続される2本の口金ピンからなることを特徴とする請求項1記載の直管形LEDランプ。
- 前記2本の口金ピンは、G13形口金で規定されている2本の口金ピン間の間隔より広い間隔で第1口金から突設されたことを特徴とする請求項5記載の直管形LEDランプ。
- 前記2本の口金ピンの各先端に、側方へ伸びるラッチ部が設けられていることを特徴とする請求項5乃至6の何れか1項に記載の直管形LEDランプ。
- 前記2本の口金ピンのラッチ部は、互いに反対向きとなる方向へ屈曲していることを特徴とする請求項7記載の直管形LEDランプ。
- 前記第2端子は、1本の口金ピンであることを特徴とする請求項1記載の直管形LEDランプ。
- 前記第2端子の先端の形状は、第2ランプソケットへの装着方向に長い形状に形成されたことを特徴とする請求項9記載の直管形LEDランプ。
- 前記第1口金の端面には径方向における中央部の両側に凹部が設けられ、前記中央部に前記第1端子が設けられたことを特徴とする請求項1乃至10の何れか1項に記載の直管形LEDランプ。
- 前記第1口金及び前記第2口金のうち少なくとも一方は、前記直管の移動を許容する状態で直管の端部を覆うように形成したことを特徴とする請求項1に記載の直管形LEDランプ。
- 請求項1乃至12の何れか1項に記載の直管形LEDランプが装着される第1及び第2ランプソケットを備え、
第1ランプソケットは、前記第1口金が装着される第1口金受け部を備え、
第2ランプソケットは、前記第2口金が装着される第2口金受け部を備えた
ことを特徴とするランプソケットセット。 - 前記第1及び第2ランプソケットの各々は、前記直管形LEDランプを回転させて装着するための装着構造を備えることを特徴とする請求項13記載のランプソケットセット。
- 前記第1口金受け部には、前記第1端子を構成する2本の口金ピンが挿入される挿入溝を有し前記直管の回転に伴って回転させられる回転子と、この回転子が回転させられた際に前記口金ピンに電気的に接続される前記給電端子としての2つの給電用接触子が設けられ、
前記第2口金受け部には、前記第2端子を構成する1本の口金ピンが挿入される挿入溝と、この挿入溝内に配置されて前記第2端子に接続される前記接地端子としての接地用接触子が設けられ、前記接地用接触子に前記第2端子が接触した状態で、前記第2端子を回転自在とした
ことを特徴とする請求項14記載のランプソケットセット。 - 前記接地用接触子は、前記第2端子との電気的な接続及び機械的な保持を行うことを特徴とする請求項15記載のランプソケットセット。
- 請求項11記載の直管形LEDランプが装着される第1及び第2ランプソケットを備え、
第1ランプソケットは、前記第1口金が装着される第1口金受け部を備え、
第2ランプソケットは、前記第2口金が装着される第2口金受け部を備え、
前記第1口金受け部は、前記第1端子が挿入される挿入溝を有し前記直管の回転に伴って回転させられる回転子を備え、前記給電端子は、この回転子が回転させられた際に前記第1端子に電気的に接続し、
前記第1口金の凹部に対応する第1ランプソケットの部位に凸部が設けられ、
前記第2口金受け部には、前記第2端子を構成する1本の口金ピンが挿入される挿入溝と、この挿入溝内に配置されて前記第2端子に接続される前記接地端子としての接地用接触子が設けられ、前記接地用接触子に前記第2端子が接触した状態で、前記第2端子を回転自在とした
ことを特徴とするランプソケットセット。 - 請求項1乃至12の何れかに記載の直管形LEDランプが装着される第1及び第2ランプソケットを備え、
第1ランプソケットは、直管形LEDランプの長手方向への移動を規制するように構成され、
第2ランプソケットは、直管形LEDランプの長手方向への移動を許容するように構成される
ことを特徴とするランプソケットセット。 - 請求項7又は8記載の直管形LEDランプが装着される第1及び第2ランプソケットを備え、
第1ランプソケットは、直管形LEDランプの第1端子が挿通可能な挿通部と、挿通部と連通して第1端子のラッチ部より幅が狭く第1端子が通過可能な寸法に形成された通過部と、第1端子が通過する通過部より外側で第1端子と電気的に接続される前記給電端子としての給電用接触子と、を具備している
ことを特徴とするランプソケットセット。 - 請求項1乃至19のいずれか1項に記載の第1及び第2ランプソケットを備えるランプソケットセットと、
前記ランプソケットセットに装着される直管形LEDランプと
を備えたことを特徴とする照明器具。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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US13/807,039 US9706608B2 (en) | 2010-06-28 | 2011-06-10 | Straight tube LED lamp, lamp socket set, and lighting fixture |
EP11800603.0A EP2587115B1 (en) | 2010-06-28 | 2011-06-10 | Straight tube led lamp, lamp socket set, and illumination equipment |
KR1020137002238A KR101448700B1 (ko) | 2010-06-28 | 2011-06-10 | 직관형 led 램프, 램프 소켓 세트 및 조명 기구 |
CN201180032247.6A CN102959316B (zh) | 2010-06-28 | 2011-06-10 | 直管型led 灯、灯座组及照明器具 |
Applications Claiming Priority (10)
Application Number | Priority Date | Filing Date | Title |
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JP2010-146873 | 2010-06-28 | ||
JP2010146280A JP5513281B2 (ja) | 2010-06-28 | 2010-06-28 | Ledランプおよび照明器具 |
JP2010146873A JP5662065B2 (ja) | 2010-06-28 | 2010-06-28 | 直管形ランプおよび照明装置 |
JP2010-146872 | 2010-06-28 | ||
JP2010-146874 | 2010-06-28 | ||
JP2010-146280 | 2010-06-28 | ||
JP2010146872A JP5617129B2 (ja) | 2010-06-28 | 2010-06-28 | 照明装置 |
JP2010-146566 | 2010-06-28 | ||
JP2010146566A JP5514012B2 (ja) | 2010-06-28 | 2010-06-28 | 直管形ledランプ及びそれに用いるランプソケット |
JP2010146874A JP2012009399A (ja) | 2010-06-28 | 2010-06-28 | 直管形ランプ、ソケットおよび照明装置 |
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WO2012002135A1 true WO2012002135A1 (ja) | 2012-01-05 |
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PCT/JP2011/063394 WO2012002135A1 (ja) | 2010-06-28 | 2011-06-10 | 直管形ledランプ、ランプソケットセットおよび照明器具 |
Country Status (6)
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US (1) | US9706608B2 (ja) |
EP (1) | EP2587115B1 (ja) |
KR (1) | KR101448700B1 (ja) |
CN (1) | CN102959316B (ja) |
TW (1) | TWI454634B (ja) |
WO (1) | WO2012002135A1 (ja) |
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JP2012119135A (ja) * | 2010-11-30 | 2012-06-21 | Panasonic Corp | ランプソケットおよび照明装置 |
WO2014045619A1 (ja) * | 2012-09-24 | 2014-03-27 | 東芝ライテック株式会社 | ランプシステム |
JP2014143081A (ja) * | 2013-01-24 | 2014-08-07 | Mitsubishi Electric Corp | 保持用ソケット及び照明器具 |
EP2847833A1 (en) * | 2012-05-10 | 2015-03-18 | The Sloan Company Inc. | Bi-pin dongle |
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Also Published As
Publication number | Publication date |
---|---|
TWI454634B (zh) | 2014-10-01 |
US20130119896A1 (en) | 2013-05-16 |
EP2587115A4 (en) | 2016-06-01 |
TW201207303A (en) | 2012-02-16 |
CN102959316A (zh) | 2013-03-06 |
KR20130038350A (ko) | 2013-04-17 |
CN102959316B (zh) | 2015-05-20 |
EP2587115B1 (en) | 2018-09-26 |
EP2587115A1 (en) | 2013-05-01 |
KR101448700B1 (ko) | 2014-10-10 |
US9706608B2 (en) | 2017-07-11 |
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