JP6188851B1 - LED lighting apparatus and LED lamp - Google Patents

Abstract

Provided is a safe LED lighting apparatus in which a conventional straight tube fluorescent lamp is not erroneously connected. An LED lighting fixture is inserted into a support recess of a second socket, and a base end of the LED lamp is positioned and supported by the first socket, and the presser is pressed. The LED lamp 7 is pressed toward the second socket 5 by the elastic force of the spring 77, so that both end portions in the longitudinal direction of the LED lamp 7 are supported by the first socket 4 and the second socket 5, respectively. With such a configuration, a conventional straight tube fluorescent lamp cannot be attached to the LED lighting apparatus 1. As a result, the conventional fluorescent lamp is not erroneously connected, so that safety can be ensured. [Selection] Figure 5

Description

  The present invention relates to an LED lighting apparatus and an LED lamp used for illumination in an indoor / outdoor area such as an explosion-proof area such as an oil plant or a chemical factory, a general factory, a plant, or a warehouse.

  Conventionally, lighting fixtures using straight tube fluorescent lamps are generally used as lighting fixtures used for lighting indoor and outdoor areas. In recent years, LED lighting fixtures using straight tube LED lamps that use LEDs (Light-Emitting Diodes) as light sources instead of straight tube fluorescent lamps have also been put into practical use (for example, patents). Reference 1 and 2).

  The straight tube type LED lamp includes, for example, a translucent lamp tube (straight tube), an LED light source unit accommodated in the lamp tube, and a base (for example, a 2-pin type) provided at both ends of the lamp tube. G13 base).

JP, 2006-015336, A Japanese Patent Laid-Open No. 2006-025016

  As mentioned above, straight tube LED lamps with G13 caps are compatible with general straight tube fluorescent lamps, so it is possible to attach straight tube fluorescent lamps to LED lamp lighting fixtures. It is. However, since fluorescent lamp lighting devices (such as ballasts) are different from LED lamp lighting devices, safety is guaranteed if a straight fluorescent lamp is accidentally attached to an LED lighting fixture (when electrical connection is made). May not be. In addition, when a straight tube type fluorescent lamp LED lamp is mistakenly attached to a conventional fluorescent lamp, the safety cannot be guaranteed and the standard of the Electrical Appliance and Material Safety Law (PSE method) may not be satisfied.

  The present invention has been made in view of such circumstances, and provides a safe LED lighting apparatus in which a conventional straight tube fluorescent lamp is not erroneously connected, and such an LED lighting apparatus. It aims at providing the LED lamp used for.

The present invention relates to an LED lighting apparatus including a straight tube type LED lamp, a long-shaped apparatus main body, a first socket disposed at one end in the longitudinal direction of the apparatus main body, and a longitudinal direction of the apparatus main body. A second socket disposed at the other end of the instrument, a reflector extending in the longitudinal direction of the instrument body, and a glass tube that houses the LED lamp , one end of the reflector and one end of the glass tube And the first socket are fastened in a fastened state, and the other end of the reflector, the other end of the glass tube, and the second socket are fastened in a fastened state . The LED lamp includes a straight tube-shaped lamp tube, an LED light source unit accommodated in the lamp tube, a conical cap provided at a distal end portion of the lamp tube, and a proximal end portion of the lamp tube. And a positioning projection protruding outward from the lamp tube, and a presser spring provided at the base end of the lamp tube for pressing the LED lamp in the axial direction. Further, the first socket has a lamp insertion hole through which the lamp tube can be inserted, and a socket lid attached to the first socket so as to close one end side of the lamp insertion hole. A positioning groove extending along the axial direction of the lamp insertion hole is provided at a position corresponding to the positioning convex portion of the LED lamp on the inner surface of the lamp insertion hole of the first socket . The two sockets are provided with a support recess having a conical tapered inner surface corresponding to the conical cap of the LED lamp.
Then, with the socket lid of the first socket removed, the lamp tube of the LED lamp is inserted into the lamp insertion hole from the front end side, the lamp tube is inserted into the glass tube, and the lamp tube is inserted. The tip cap of the LED lamp is inserted into the support recess of the second socket, the positioning projection of the LED lamp is fitted into the positioning groove of the first socket, and the socket lid is resisted by the elastic force of the presser spring. The LED lamp is attached to the first socket, and the cap is brought into contact with the inner surface of the support recess of the second socket by the presser spring, whereby both ends of the LED lamp are respectively connected to the first socket and the second socket. Positioned and supported, and the LED light source surface of the LED light source unit is configured to face the irradiated area in the positioning state. It is characterized in that it is.

  In the LED lighting apparatus of the present invention, the cap at the tip of the LED lamp is inserted into the support recess of the second socket, the base end of the LED lamp is positioned and supported by the first socket, and the elastic force of the presser spring is used. By pressing the LED lamp toward the second socket, both ends in the longitudinal direction of the LED lamp are supported by the first socket and the second socket, respectively. Straight tube fluorescent lamps cannot be attached to LED lighting fixtures. As a result, the conventional fluorescent lamp is not erroneously connected, so that safety can be ensured.

  Here, in the LED lamp in which the LED light source unit is accommodated in the lamp tube, it is necessary to attach the LED lamp to the LED lighting device so that the light emission surface of the LED faces the irradiated area (downward in the case of a ceiling-suspended type). . In the LED lighting apparatus of the present invention, the LED light emitting surface is directed to the irradiated area by fitting the positioning convex portion of the LED lamp into the positioning groove of the first socket. Workability at the time of attaching the lamp to the LED lighting apparatus is improved.

The LED lighting apparatus of the present invention includes a reflector that extends in the longitudinal direction of the instrument body, and a glass tube that houses the LED lamp, and fastens one end of the reflector, one end of the glass tube, and the first socket together. It concluded in the state, since the other end portion and a second socket at the other end and the glass tube of the reflector has a structure for fastening by fastening together state, these first socket reflector and the glass tube and the second Ki out to integrate the socket, the first socket, it is possible to increase the strength of the container (LED lamp container) which is formed by the glass tube and the second socket. Thereby, it becomes possible to make an LED lamp storage container into a flameproof container.

  The LED lamp of the present invention is a straight tube type LED lamp used in the LED lighting apparatus having the above-described features, and includes a straight tube shape lamp tube, an LED light source unit accommodated in the lamp tube, and a lamp tube. A conical cap provided at the distal end, a positioning projection provided at the proximal end of the lamp tube, and a presser spring provided at the proximal end of the lamp tube for pressing the LED lamp in the axial direction It is characterized by having. By adopting such a structure for the straight tube type LED lamp, compatibility with the conventional straight tube type fluorescent lamp is lost, and it is not erroneously connected to the conventional fluorescent lamp device (lighting fixture).

  ADVANTAGE OF THE INVENTION According to this invention, the safe LED lighting fixture by which the conventional straight tube | pipe type fluorescent lamp is not erroneously connected is realizable. Moreover, since the LED lamp of the present invention is not compatible with a conventional straight tube fluorescent lamp, it is not erroneously connected to a conventional fluorescent lamp (lighting fixture).

It is a perspective view which shows embodiment of the LED lighting fixture of this invention. It is a perspective view which shows embodiment of the LED lighting fixture of this invention. It is a right view of the LED lighting fixture of this invention. It is a left view of the LED lighting fixture of this invention. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. FIG. 7A is a cross-sectional view showing the structure of the peripheral portion of the first socket, and FIG. 7B is a view taken in the direction of arrow C in FIG. 7A and 7B show a state in which the socket lid of the first socket and the LED lamp are removed. FIG. 8A and FIG. 8B are side views showing the structure of the peripheral portion of the first socket, respectively. It is DD sectional drawing of Fig.8 (a). 10A and 10B are side views showing the structure of the peripheral portion of the second socket, respectively. It is EE sectional drawing of Fig.10 (a). 12A is a side view of the LED lamp, and FIG. 12B is a cross-sectional view of the LED lamp viewed from the bottom side. It is F arrow line view of Fig.12 (a). It is GG sectional drawing of Fig.12 (a). It is HH sectional drawing of FIG. It is a figure which shows the state by which the positioning convex part of the LED lamp was engage | inserted in the positioning groove of the 1st socket. In embodiment of the LED lighting fixture of this invention, it is sectional drawing which shows the state which slid the LED lamp with respect to the 1st socket, the glass tube, and the 2nd socket.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1-17 is a figure which shows embodiment of the LED lighting fixture of this invention.

  The LED lighting apparatus 1 of the present embodiment is a ceiling-suspended lighting apparatus used for lighting indoor and outdoor areas such as an explosion-proof area such as an oil plant or a chemical factory, a general factory, a plant, or a warehouse. , Instrument body 2, reflector 3, first socket 4, second socket 5, glass tube 6, straight tube LED lamp 7, control device 8, and the like.

  Hereinafter, the detail of each part of the LED lighting fixture 1 of this embodiment is demonstrated.

  In the following description, the longitudinal direction of the LED lighting apparatus 1 (apparatus body 2) is simply referred to as “longitudinal direction”, and the short direction of the LED lighting apparatus 1 (apparatus body 2) is simply referred to as “short direction”. .

-Instrument body-
The instrument body 2 includes a frame body 21 and two body lids 22 and 23. The frame 21 is an extruded product (extruded material) such as aluminum. Both end portions (side portions) of the frame body 21 in the extrusion direction (longitudinal direction) are opened, and the opening portions at both end portions are covered with main body lids 22 and 23, respectively. A control device 8 is disposed inside the instrument body 2 (see FIG. 5).

  Two pipe holders 24 and 25 for holding the suspended pipe P are disposed on the upper wall 21 a of the frame body 21, and each of the pipe holders 24 and 25 is bolted to the upper wall 21 a of the frame body 21. (Not shown). As shown in FIG. 5, an electric wire introduction hole 21b is opened in the upper wall 21a at the position where one of the two pipe holders 24, 25 is located (the left pipe holder 25 in FIG. 5). Has been. A rubber sleeve 26 having a plurality of electric wire insertion holes is fitted into the electric wire introduction hole 21 b, and the electric wire is guided into the instrument main body 2 through the electric wire insertion hole of the rubber sleeve 26 and arranged in the instrument main body 2. Connected to the control device 8. The control device 8 incorporates an LED driving circuit, a dimming circuit, and the like, and controls driving of an LED light source unit 70 of the LED lamp 7 to be described later.

-Reflector-
The reflecting plate 3 is an extruded product (extruded material) such as aluminum, and extends along the longitudinal direction. As shown in FIGS. 9 and 11, the reflector 3 includes a central arc portion 31, cylindrical portions 32 at both ends in the short direction of the arc portion 31, and inclined plates that are inclined downward from the respective cylindrical portions 32. 33 is integrally formed. A female screw hole 3a and a female screw hole 3b are provided at both ends in the longitudinal direction of each cylindrical portion 32 (see FIGS. 8 to 11).
3 -Socket glass tube-
The first socket 4 is disposed at one end in the longitudinal direction of the instrument body 2, and the second socket 5 is disposed at the other end in the longitudinal direction of the instrument body 2.

  The first socket 4 is, for example, an aluminum die-cast product, and includes a socket body 41 and a socket lid 42. A horizontal flange 41 a is integrally formed on the socket body 41, and the horizontal flange 41 a is detachably attached to the instrument body 2 by two pan head screws 13, 13.

  A pair of flanges 41 b and 41 b are integrally formed at one end of the socket main body 41 (end on one end side in the longitudinal direction of the instrument main body 2). The pair of flanges 41 b and 41 b are arranged above and below the socket body 41. Each flange 41b is provided with a female screw hole 41d (see FIGS. 5 and 7).

  A pair of flanges 41 c and 41 c are integrally formed at the other end of the socket body 41 (the end on the other end side in the longitudinal direction of the instrument body 2). The pair of flanges 41 c and 41 c are arranged on the side portion of the socket body 41. Each flange 41c is provided with a bolt insertion hole 41e (see FIG. 8). These bolt insertion holes 41 e and 41 e are arranged in a positional relationship corresponding to the female screw holes 3 a and 3 a at one end of the reflector 3.

  The socket body 41 is provided with a cylindrical lamp insertion hole 40 (see FIGS. 5 and 7). The lamp insertion hole 40 is a stepped (three-stage) through hole including a large diameter hole 40a, a medium diameter hole 40b, and a small diameter hole 40c. The inner diameter (minimum diameter) of the small diameter hole 40c of the lamp insertion hole 40 is larger than the outer diameter of the lamp tube 71 of the LED lamp 7 described later. As a result, the lamp tube 71 can be inserted into the lamp insertion hole 40. The inner peripheral surface of the large-diameter hole 40a is a conical tapered surface.

  Three positioning grooves 43a, 43b, 43c extending along the axial direction of the lamp insertion hole 40 are provided on the inner surface of the medium diameter hole 40b of the lamp insertion hole 40 (see FIG. 7). These positioning grooves 43a, 43b and 43c are arranged in a positional relationship corresponding to positioning convex portions 76a, 76b and 76c of the LED lamp 7 which will be described later. Specifically, one positioning groove 43a among the three positioning grooves 43a, 43b, and 43c is a position that is the lowermost portion of the lamp insertion hole 40 (medium diameter hole 40b) (vertical passing through the center of the lamp insertion hole 40). It is arranged at a position on the line CL1 (hereinafter referred to as the center line CL1)) (see FIGS. 7 and 16). The other two positioning grooves 43b and 43c are disposed at a position inclined with respect to the center line CL1 above the lamp insertion hole 40.

  Moreover, the insertion recessed part 4a is provided in the other end part of the socket main body 41 (refer FIG. 5, FIG. 7). The insertion recess 4 a is a ring-shaped groove formed on the outer peripheral wall of the lamp insertion hole 40, and one end of the glass tube 6 is inserted therein. The ring center of the insertion recess 4a (tube center of the glass tube 6) coincides with the cylindrical center of the lamp insertion hole 40.

  Furthermore, an electric wire introduction hole 41f is opened at the upper center of the socket body 41 (see FIG. 7). A rubber sleeve 44 having a plurality of electric wire insertion holes is fitted into the electric wire introduction hole 41f, and electric wires (electric wires from the control device 8) are inserted into the socket body 41 through the electric wire insertion holes of the rubber sleeve 44. . The rubber sleeve 44 is fixed by a cable gland 45.

  As shown in FIG. 5, the socket lid 42 includes a lid body 42 a processed into a shape corresponding to one end surface of the socket body 41, and a fitting portion 42 b fitted into the socket body 41. The outer peripheral surface of the fitting portion 42b is a conical tapered surface, and can be fitted in close contact with the inner peripheral surface (conical tapered surface) of the large diameter hole 40a of the lamp insertion hole 40.

  The lid body 42a is provided with two bolt insertion holes 42c and 42c. These insertion holes 42 c and 42 c are arranged in a positional relationship corresponding to the female screw holes 41 d and 41 d of the socket body 41. Then, the fitting portion 42b of the socket lid 42 is fitted into the lamp insertion hole 40 (large diameter hole 40a) of the socket main body 41, the lid main body 42a is aligned with one end surface of the socket main body 41, and the socket main body 41 The bolt insertion holes 42c of the socket lid 42 are aligned with the respective female screw holes 41d. In this state, the lid fixing bolts 12 are respectively inserted into the respective bolt insertion holes 42c of the socket lid 42, and the respective lid fixing bolts 12 are respectively screwed into the female screw holes 41d of the socket main body 41, whereby the socket lid 42 is fixed to the socket main body 41. 41 is attached. With the socket lid 42 attached, one end side of the lamp insertion hole 40 of the socket body 41 is closed. An O-ring 48 is sandwiched between the mating portions of the socket body 41 and the socket lid 42.

  The second socket 5 is an aluminum die-cast product, for example, and is supported by the instrument body 2 via a hinge 10 and can swing with respect to the instrument body 2 as shown in FIG. A pair of flanges 51, 51 are integrally formed in the second socket 5. The pair of flanges 51, 51 are disposed on the side of the second socket 5. Each flange 51 is provided with a bolt insertion hole 51a. These bolt insertion holes 51a and 51a are arranged in a positional relationship corresponding to the female screw holes 3b and 3b at one end of the reflection plate 3 (see FIG. 10).

  A support recess 50 is provided at one end of the second socket 5 (the end on the one end side in the longitudinal direction of the instrument body 2). The inner peripheral surface of the support recess 50 is a conical taper surface, and a cap 74 (cone shape) at the tip of the LED lamp 7 to be described later can be inserted, and the inner surface (cone) of the support recess 50 in the inserted state. The tapered surface and the outer surface (conical surface) of the cap 74 are in contact with each other (see FIG. 5).

  An insertion recess 5 a is provided at one end of the second socket 5. The insertion recess 5 a is a ring-shaped groove formed in the outer peripheral wall of the support recess 50, and the other end of the glass tube 6 is inserted therein. The center of the insertion recess 5a coincides with the center of the support recess 50 (the center axis of the conical tapered surface).

  The glass tube 6 is a straight tube-shaped cylindrical member, and has an inner diameter larger than an outer diameter of a lamp tube 71 of the LED lamp 7 described later. At the both ends of the glass tube 6 are disposed substantially ring-shaped front lids 61 and 62 (see FIG. 5, FIG. 8, FIG. 10, etc.). Two bolt insertion holes 61a, 61a are provided in one of the two front lids 61, 62 on the front lid 61 (on the first socket 4 side). These bolt insertion holes 61a, 61a are arranged in a positional relationship corresponding to the female screw holes 3a, 3a (bolt insertion holes 41e, 41e of the first socket 4) at one end of the reflector 3 (see FIG. 8). Two bolt insertion holes 62a and 62a are also provided on the other front lid 62 (on the second socket 5 side). These bolt insertion holes 62a and 62a are arranged in a positional relationship corresponding to the female screw holes 3b and 3b (bolt insertion holes 51a and 51a of the second socket 5) at the other end of the reflector 3 (see FIG. 10). .

-LED lamp-
The LED lamp 7 includes an LED light source unit 70, a heat sink 72, a diffusion cover 73, a cap 74, a lamp lid 75, a positioning plate 76, a presser spring 77, and the like, as shown in FIGS.

  The LED light source unit 70 includes an LED substrate 70a and a plurality of LEDs 70b... 70b mounted on the front surface (lower surface) of the LED substrate 70a. The LED 70b that is a light source is, for example, a surface-mount type or COB (chip-on-board) type white LED.

  The heat sink 72 is a long member (for example, an aluminum alloy member) extending in the longitudinal direction, and a sink main body 72a having a heat radiation fin and an upper cover 72b having an arcuate cross section are integrally formed. Holding portions 72c and 72c are provided on both sides of the sink body 72a in the short direction. Each holding portion 72c is provided with a holding groove 72d, and both ends of the LED substrate 70a in the short direction are fitted into the holding grooves 72d and 72d. Thereby, the LED light source unit 70 is held by the heat sink 72. Further, tapping holes 72e and 72e extending in the longitudinal direction are provided on both sides of the sink body 72a in the short direction.

  The diffusion cover 73 is a long member (a member made of resin) that extends in the longitudinal direction and has translucency. The diffusion cover 73 has a cross section processed into an arc shape (a semicircular shape protruding downward). Locking pieces 73a and 73a are provided at both ends in the short direction of the diffusion cover 73, respectively, and the locking pieces 73a and 73a are locked to the outside of the holding portions 72c and 72c of the heat sink 72, respectively. Thus, the diffusion cover 73 is attached to the heat sink 72. In this mounted state, the arc-shaped upper cover 72 b and the arc-shaped diffusion cover 73 form a substantially cylindrical lamp tube 71, and the LED light source unit 70 is accommodated inside the lamp tube 71. In this accommodated state, the light emitting surface of each LED 70b faces downward (on the diffusion cover 73 side).

  The cap 74 is a resin member and is processed into a conical shape (a shell shape). An insertion portion 74 a is formed integrally with the cap 74, and the insertion portion 74 a is inserted into the distal end portion of the lamp tube 71 (the end portion on the other end side in the longitudinal direction of the instrument body 2). As shown in FIG. 15, the cap 74 is fixed to the heat sink 72 by a tapping screw 78. The tapping screw 78 is screwed into the tapping hole 72e of the heat sink 72.

  On the other hand, a lamp lid 75 is fitted into the base end portion of the lamp tube 71 (the end portion on one end side in the longitudinal direction of the instrument body 2). As shown in FIGS. 12, 15 and the like, a positioning plate 76 is placed on the lamp lid 75 in an overlapped state, and the lamp lid 75, the positioning plate 76 and the presser spring 77 are attached to the heat sink 72 by a tapping screw 78. It is fixed in a fastened state. The tapping screw 78 is screwed into the tapping hole 72e of the heat sink 72.

  Three positioning convex portions 76a, 76b, and 76c are arranged on the outer periphery of the positioning plate 76 (see FIG. 13). The one positioning convex portion 76a is disposed at the lowermost position of the lamp tube 71 (diffusion cover 73) (the position on the center line CL2 perpendicular to the lower surface of the LED board 70a (the mounting surface of the LED 70b)). Yes. The other two positioning convex portions 76b and 76c are arranged at positions inclined with respect to the center line CL2 above the alignment position (engagement position) between the heat sink 72 and the diffusion cover 73. These three positioning convex portions 76 a, 76 b, and 76 c are in a rotationally asymmetric positional relationship with respect to the cylindrical central axis of the lamp tube 71.

  The presser spring 77 is a member obtained by bending a steel plate, and applies an elastic force in the axial direction to the LED lamp 7 inserted and arranged in the glass tube 6.

  Specifically, the LED lamp 7 (lamp tube 71) is inserted into the glass tube 6 by the procedure described later, and the cap 74 at the tip of the LED lamp 7 is brought into contact with the inner surface of the support recess 50 of the second socket 5. In this state, the end of the presser spring 77 (the end on the one end side in the longitudinal direction of the instrument main body 2) protrudes outside the one end surface of the socket main body 41 of the first socket 4 (outside the lamp insertion hole 40). An elastic force of the presser spring 77 is obtained by attaching the socket cover 42 to the socket body 41 while pressing the presser spring 77 in the longitudinal direction by the socket cover 42 (elastically deforming). As a result, the LED lamp 7 is pressed in the axial direction (longitudinal direction), and the cap 74 at the tip is brought into contact with the inner surface of the support recess 50 of the second socket 5.

  In the LED lamp 7 described above, the lead wire L of the LED light source unit 70 penetrates the lamp lid 75 and is led out of the lamp. And in the state which attached the LED lamp 7 to the 1st socket 4 and the 2nd socket 5 (state shown in FIG. 5 etc.), the lead wire L of the LED lamp 7 is the said inside the socket main body 41 of the 1st socket 4. It is electrically connected to an electric wire (electric wire from the control device 8) inserted into the socket body 41 via a connector (not shown).

-Assembly of lighting fixtures-
<Assembly of socket, glass tube and reflector>
As shown in FIG. 8, the front cover 61 is fitted into one end of the glass tube 6, and one end of the glass tube 6 is inserted into the insertion recess 4 a of the socket body 41 of the first socket 4 and reflected to the front cover 61. The one end surface of the longitudinal direction of the board 3 is match | combined. Further, the other end surface of the socket body 41 of the first socket 4 is aligned with the front cover 61, and the bolt insertion hole 61 a of the front cover 61 and the bolt insertion hole 41 e of the socket body 41 are provided in each female screw hole 3 a of the reflector 3. In the aligned state, the reflector plate fixing bolts 11 are inserted into the bolt insertion holes 41e of the socket body 41 and the bolt insertion holes 61a of the front cover 61, respectively. By screwing into the female screw hole 3a, one end portion of the reflecting plate 3 and one end portion of the glass tube 6 are fastened to the socket body 41 together. As shown in FIG. 5, a packing 46 is sandwiched between one end of the glass tube 6 and the inner peripheral surface of the insertion recess 4 a of the socket body 41. In addition, a packing 47 is also disposed at the mating portion between the socket body 41 and the front cover 61.

  Further, as shown in FIG. 10, the front cover 62 is fitted into the other end of the glass tube 6, and the other end of the glass tube 6 is inserted into the insertion recess 5 a of the second socket 5 and reflected to the front cover 62. The other end surfaces in the longitudinal direction of the plate 3 are aligned. Further, one end surface of the second socket 5 is aligned with the front cover 62, and the bolt insertion hole 62a of the front cover 62 and the bolt insertion hole 51a of the second socket 5 are aligned with the female screw holes 3b of the reflector 3, respectively. In this state, the reflecting plate stopping bolts 11 are respectively inserted into the bolt inserting holes 51a of the second socket 5 and the bolt inserting holes 62a of the front cover 62, and the reflecting plate stopping bolts 11 are respectively inserted into the female screw holes of the reflecting plate 3. By screwing into 3b, the one end part of the reflecting plate 3 and the one end part of the glass tube 6 are fastened to the 2nd socket 5 in the fastening state. As shown in FIG. 5, a packing 52 is sandwiched between the other end of the glass tube 6 and the inner peripheral surface of the insertion recess 5 a of the second socket 5. In addition, a packing 53 is also arranged at the mating portion between the second socket 5 and the front cover 62.

  As described above, with the reflector 3 and the glass tube 6 assembled to the first socket 4 and the second socket 5, the second socket 5 is connected to the other end in the longitudinal direction of the instrument body 2 via the hinge 10. Connected. Further, the socket main body 41 is detachably attached to the longitudinal end of the instrument main body 2 by the pan head screw 13.

<Attaching the LED lamp>
As shown in FIGS. 7 and 17, the lamp tube 71 of the LED lamp 7 is inserted into the lamp insertion hole 40 of the first socket 4 with the socket lid 42 (see FIG. 5) of the first socket 4 removed (see FIG. 7). The lamp tube 71 is inserted into the glass tube 6, and the cap 74 at the tip of the lamp tube 71 is inserted into the support recess 50 of the second socket 5 (see FIG. 5). At this time, since the conical cap 74 is guided by the conical tapered surface of the support recess 50, the center of the support recess 50 and the center of the cap 74 (the lamp tube) with the cap 74 fully entering the support recess 50. 71 cylindrical center axis) is automatically positioned.

  In this way, the cap 74 of the LED lamp 7 is inserted into the support recess 50 of the second socket 5, and the positioning protrusions 76a, 76b, 76c of the positioning plate 76 at the base end of the LED lamp 7 are respectively connected to the socket body. The positioning grooves 43a, 43b, 43c on the inner peripheral surface of the lamp insertion hole 40 of 41 are fitted and fixed (see FIG. 16). Here, since the three positioning convex portions 76a, 76b, 76c of the LED lamp 7 are rotationally asymmetric with respect to the cylindrical central axis of the lamp tube 71, the positioning convex portions 76a, 76b, 76c are respectively positioned in the positioning grooves 43a, 43b. , 43c, the direction of the LED lamp 7 (lamp tube 71) with respect to the first socket 4 is always constant. That is, since the center line CL2 of the LED lamp 7 and the center line CL1 of the first socket 4 coincide with each other, the lower surface of the LED substrate 70a (the mounting surface of the LED 70b) faces downward (the light emission surface of each LED 70b is downward ( The LED lamp 7 is positioned in a posture) facing the irradiated area.

  After the LED lamp 7 is inserted and arranged in the glass tube 6 as described above, the lead wire L of the LED lamp 7 and the electric wire inserted into the socket body 41 of the first socket 4 are electrically connected via the connector. Connecting. The electrical connection between the lead wire L and the electric wire may be a terminal connection.

  Thereafter, the socket lid 42 is disposed on one end face side of the socket body 41 of the first socket 4, and the socket lid 42 is aligned with one end face of the socket body 41 against the elastic force of the holding spring 77 of the LED lamp 7. In this state, the socket lid 42 is fastened to the socket body 41 by the lid fixing bolts 12 and 12. When the socket lid 42 is attached to the socket main body 41 in this way, the presser spring 77 of the LED lamp 7 is bent (elastically deformed), so that the lamp tube 71 is caused by the elastic force of the presser spring 77. Is pushed in the axial direction, and the outer peripheral surface of the cap 74 at the tip of the lamp tube 71 comes into contact with the inner surface of the support recess 50 of the second socket 5. Thereby, both ends of the LED lamp 7 are supported by the first socket 4 and the second socket 5, respectively.

<Effect>
As described above, according to the LED lighting apparatus 1 of the present embodiment, the conical cap 74 is provided at the distal end portion of the LED lamp 7, and the positioning convex portions 76a to 76c and the presser spring 77 are provided at the proximal end portion. Yes. Moreover, the 1st socket 4 and the 2nd socket 5 are each arrange | positioned at the both ends of the instrument main body 2, The positioning grooves 43a-43c are provided in the 1st socket 4, and the LED socket 7 of the 2nd socket 5 is provided. A support recess 50 having a shape corresponding to the cap 74 is provided. Then, the cap 74 at the tip of the LED lamp 7 is inserted into the support recess 50 of the second socket 5, and the base end of the LED lamp 7 is positioned and supported by the first socket 4, and the LED lamp 7 is elastically pressed by the pressing spring 77. By pressing 7 toward the second socket 5, both ends in the longitudinal direction of the LED lamp 7 are supported by the first socket 4 and the second socket 5, respectively. With such a configuration, even if a conventional straight tube fluorescent lamp (fluorescent lamp having a base G13 at both ends) is inserted into the glass tube 6 of the LED lighting apparatus 1, electrical connection of the fluorescent lamp is performed. Can not do. Therefore, since the conventional fluorescent lamp is not erroneously connected, safety can be ensured.

  Moreover, according to the straight tube type LED lamp 7 of this embodiment, since it is not compatible with the conventional straight tube type fluorescent lamp, it is not erroneously connected to the conventional fluorescent lamp device.

  Furthermore, in the LED lighting apparatus 1 of this embodiment, since the reflecting plate 3 is an extruded product, the thickness of the reflecting plate 3 can be increased. Moreover, one end of the reflector 3, one end of the glass tube 6, and the first socket 4 are fastened together, and the other end of the reflector 3, the other end of the glass tube 6, and the second socket 5 Are integrated in a co-tightened state, so that the strength of the container (LED lamp housing container) formed by the first socket 4, the glass tube 6 and the second socket 5 can be increased. . Thereby, it becomes possible to make an LED lamp storage container into a flameproof explosion-proof container. By the way, when the performance test was performed on the LED lighting apparatus 1 of the present embodiment, it was confirmed that the structure satisfied the pressure test and the explosion flammability test required for the explosion-proof container and passed the Ministry of Health, Labor and Welfare type certification test. . Furthermore, since the reflecting plate 3 and the glass tube 6 are fastened to the two sockets 4 and 5 together, the number of parts and the number of assembly steps can be reduced.

-Other embodiments-
In addition, embodiment disclosed this time is an illustration in all the points, Comprising: It does not become a basis of limited interpretation. Therefore, the technical scope of the present invention is not interpreted only by the above-described embodiments, but is defined based on the description of the scope of claims. Further, the technical scope of the present invention includes all modifications within the scope and meaning equivalent to the scope of the claims.

  For example, in the above embodiment, the number of positioning recesses provided in the base end portion of the LED lamp 7 and the number of positioning grooves provided in the first socket 4 is three. However, the present invention is not limited thereto, and these positioning recesses and positioning grooves are provided. The number of is arbitrary.

  In the above embodiment, the ceiling-suspended lighting fixture has been described. However, the present invention is not limited to this, and can also be applied to a ceiling-surface lighting fixture.

  INDUSTRIAL APPLICABILITY The present invention can be effectively used for an LED lighting apparatus using a straight tube type LED lamp.

DESCRIPTION OF SYMBOLS 1 Lighting fixture 10 Hinge 2 Appliance main body 21 Frame 22 Main body lid 23 Main body lid 3 Reflector 3a Female screw hole 3b Female screw hole 4 1st socket 4a Insertion recessed part 40 Lamp insertion hole 41 Socket main body 41d Female screw hole 41e Bolt insertion hole 42 Socket Lid 42c Bolt insertion hole 43a Positioning groove 43b Positioning groove 43c Positioning groove 5 Second socket 5a Insertion recess 50 Support recess 51a Bolt insertion hole 6 Glass tube 61 Front lid 61a Bolt insertion hole 62 Front lid 62a Bolt insertion hole 7 LED lamp 70 LED light source unit 70a LED substrate 70b LED
71 Lamp Tube 72 Heat Sink 73 Diffusion Cover 74 Cap 75 Lamp Lid 76 Positioning Plate 76a Positioning Convex 76b Positioning Convex 76c Positioning Convex 77 Presser Spring 8 Controller 11 Reflector Stopping Bolt 12 Cap Screw 13 Cap Screw

Claims (2)

An LED lighting apparatus having a straight tube type LED lamp,
An elongated instrument body, a first socket disposed at one end in the longitudinal direction of the instrument body, a second socket disposed at the other end in the longitudinal direction of the instrument body, and the longitudinal length of the instrument body A reflector extending in the direction, and a glass tube that houses the LED lamp ,
One end of the reflecting plate, one end of the glass tube, and the first socket are fastened together, and the other end of the reflecting plate, the other end of the glass tube, and the second socket are connected together. It is fastened and tightened,
The LED lamp includes a straight tube-shaped lamp tube, an LED light source unit accommodated in the lamp tube, a conical cap provided at a distal end portion of the lamp tube, and a proximal end portion of the lamp tube. A positioning projection that protrudes to the outside of the lamp tube, and a presser spring that is provided at the base end of the lamp tube and presses the LED lamp in the axial direction,
The first socket has a lamp insertion hole through which the lamp tube can be inserted, and a socket lid attached to the first socket so as to close one end side of the lamp insertion hole. In the inner surface of the lamp insertion hole of the first socket, a positioning groove extending along the axial direction of the lamp insertion hole is provided at a position corresponding to the positioning projection of the LED lamp ,
The second socket is provided with a support recess having a conical tapered inner surface corresponding to the conical cap of the LED lamp,
With the socket lid of the first socket removed, the lamp tube of the LED lamp is inserted into the lamp insertion hole from the distal end side, the lamp tube is inserted into the glass tube, and the tip of the lamp tube is inserted. The cap of the portion is inserted into the support recess of the second socket, the positioning projection of the LED lamp is fitted into the positioning groove of the first socket, and the socket lid is resisted against the elastic force of the presser spring. The LED lamp is positioned and supported by the first socket and the second socket by attaching the cap to the inner surface of the support recess of the second socket with the presser spring attached thereto. And in the positioning state, the LED light emitting surface of the LED light source unit is configured to face the irradiated area. LED lighting apparatus, characterized in that. An LED lamp used in the LED lighting apparatus according to claim 1 ,
A straight tube-shaped lamp tube; an LED light source unit housed in the lamp tube; a conical cap provided at a distal end of the lamp tube; and a lamp tube provided at a proximal end of the lamp tube, An LED lamp comprising: a positioning convex portion protruding outward; and a presser spring provided at a proximal end portion of the lamp tube for pressing the LED lamp in an axial direction .

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