JP2009032486A - Fixture for electrodeless discharge lamp, and luminaire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fixture for an electrodeless discharge lamp capable of reducing projecting height of a core from a lamp mounting surface; and a luminaire. <P>SOLUTION: This fixture 1 includes a fixture body 2 having appliance body contact parts 24, and a catching piece 3. On one surface of the catching piece 3, a core first contact part 32 contacting the shortest part 103a in an outer periphery of the core 103, and two core second contact parts 33 contacting other parts in the outer periphery of the core 103 are provided, a part between the two core second contact parts 33 on the one surface is arranged on a tangential line P passing through the shortest part in a state where the core 103 is caught between the catching piece 3 and the fixture body 2, and parts on the one surface from the core second contact parts 33 to ends are arranged on the core 103 side relative to the tangential line P. The appliance body contact parts 24 of the fixture body 2 are arranged on lamp mounting surface 100a sides of a luminaire body 100 by a thickness portion of the catching piece 3 relative to the tangential line P. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a fixture for an electrodeless discharge lamp and an illumination fixture for attaching an electrodeless discharge lamp such as a fluorescent lamp and a sterilization lamp that excites and emits discharge gas sealed in a bulb to the lighting fixture body. .

2. Description of the Related Art Conventionally, as shown in FIG. 9, for example, an attachment for an electrodeless discharge lamp for attaching an electrodeless discharge lamp having a ring-shaped core to a lighting fixture body is known. This electrodeless discharge lamp fixture a includes a substantially U-shaped fixture body b, a core 103 received in the fixture body b, and a lamp mounting surface 100a provided on the lighting fixture body 100. And an elongated plate-like sandwiching piece c having elasticity disposed therebetween. And the convex contact part d projected from the sandwiching piece c toward the core 103 is disposed at the position where the distance from the lamp mounting surface 100b on the outer periphery of the received core 103 is the shortest. The both end portions are locked to the fixture main body b in a state of being in contact with the portion 103a. In this state, the fixing part b1 provided on the fixture body b is fixed to the lamp mounting surface 100a. Accordingly, the core 103 can be sandwiched between the fixture body b and the sandwiching piece c, and the electrodeless discharge lamp can be attached to the lighting fixture body 100 in the sandwiched state (Patent Documents 1, 2, and 3). reference).
JP 2003-141990 A

  However, since the convex contact part d of the sandwiching piece c is brought into contact with the shortest part 103a on the outer periphery of the core 103 received by the fixture body b, the inner surface of the sandwiching piece c on the core 103 side is the shortest part. From the tangent line P passing through the portion 103a, the protruding portion H2 of the protruding contact portion d protruding from the sandwiching piece c is arranged on the lamp mounting surface 100b side. Therefore, the core 103 protrudes from the lamp mounting surface 100b by the protrusion H2 and the thickness of the clamping piece c, and further by the thickness of the fixing part b1 of the fixture main body b. Projection height H1 is high from the lamp mounting surface 100b in the entire lamp device composed of the electrodeless discharge lamp. As a result, there is a problem that it is difficult to reduce the thickness of the entire lighting fixture.

  Here, if the diameter of the core 103 is reduced to reduce the protruding amount of the core 103 from the lamp mounting surface 100b, the protruding height H1 of the entire lamp device can be reduced. However, in order to light and maintain the discharge with respect to a constant discharge path length, the core 103 having a constant size is necessary. If the diameter is reduced, the length must be increased. If the length is increased, the area covering the bulb inserted through the core 103 is increased, and light emission from the bulb is reduced, resulting in a reduction in luminous efficiency. For this reason, it is difficult to reduce the diameter of the core 103.

  Further, in this case, the sandwiching piece c is likely to be displaced in the longitudinal direction (vertical direction in the figure), and if the displacement occurs, it is difficult to sandwich the core 103 between the fixture body b and the sandwiching piece c. End up.

  It is an object of the present invention to provide a fixture for an electrodeless discharge lamp and a lighting fixture that can reduce the protruding amount of the core from the lamp mounting surface as much as possible to reduce the protruding height of the entire lamp device from the lamp mounting surface. And

  It is another object of the present invention to provide a fixture for an electrodeless discharge lamp and a lighting fixture that can securely hold the core.

  Furthermore, an object of the present invention is to provide a fixture for an electrodeless discharge lamp and a luminaire with good heat dissipation of the heat generated by the core.

  In order to solve the above-mentioned problem, a first aspect of the present invention is a fixture that receives an outer periphery of a ring-shaped core provided in an electrodeless discharge lamp and is fixed to a lamp mounting surface provided in a lighting fixture body. There is no electrode by a main body and an elongated plate-like clamping piece that is disposed between the core received by the fixture main body and the lamp mounting surface and has an elasticity that clamps the outer periphery of the core with the fixture main body. A fixture for an electrodeless discharge lamp for attaching a discharge lamp to a luminaire main body, wherein the clamping piece is clamped with the fixture main body when one surface thereof is the lamp mounting surface on the outer periphery of the core. And the shortest part arranged at the position where the distance is the shortest, and is arranged so as to be arranged at substantially the same position as the core side or the tangent line with respect to the tangent line passing through the shortest part. Electrodeless Providing fixtures for electric lamps.

  According to a second aspect of the present invention, the fixture main body is formed of a substantially U-shape, and one end side of the fixture main body is provided with a core receiving portion that receives the outer periphery of the core, and the other end side is provided with the core receiving portion. A fixing portion that is fixed to the lamp mounting surface, and the fixing portion is fixed to the lamp mounting surface in a state where the core received in the core receiving portion is held between the holding pieces. It is preferable that the sandwiching piece is configured to protrude toward the lamp mounting surface side from the tangent line by substantially the thickness.

  As described in claim 3, the first surface of the sandwiching piece is provided with a core first contact portion that contacts the shortest portion of the core, and at least two places sandwiching the first contact portion, It is preferable that a core second contact portion that contacts the outer periphery of the core is provided.

  According to a fourth aspect of the present invention, the one surface of the sandwiching piece is provided with the core first contact portion that contacts the shortest portion of the core and has a predetermined length in the longitudinal direction from the first contact portion. It is preferable that a surface contact portion that is in surface contact with the outer periphery of the core is provided over a range.

  A fifth aspect of the present invention includes a lighting fixture body, an electrodeless discharge lamp having a ring-shaped core, and a fixture for an electrodeless discharge lamp according to any one of claims 1 to 4. The lighting fixture body is provided with a lamp mounting surface for mounting an electrodeless discharge lamp, and the electrodeless discharge lamp is mounted on the lamp mounting surface by a mounting tool for the electrodeless discharge lamp. A lighting apparatus is provided.

  According to the first aspect, the sandwiching piece is configured such that one surface thereof is in contact with the shortest portion on the outer periphery of the core and is disposed on the core side or on the tangent line with respect to the tangent line passing through the shortest portion. When attached to the lamp mounting surface of the luminaire main body, the shortest part of the core can be arranged at a position separated from the lamp mounting surface of the luminaire main body by the thickness of the sandwiching piece. As a result, the protrusion height from the lamp mounting surface in the lamp device composed of the fixture for electrodeless discharge lamp and the electrodeless discharge lamp is made lower than the conventional one to make the electrodeless discharge lamp the main body of the luminaire Can be attached to.

  According to the second aspect, the fixture main body contact portion of the fixing portion of the fixture main body is configured to protrude to the lamp mounting surface side from the tangent line by substantially the thickness of the clamping piece. If the main body abutting part is brought into contact with the lamp mounting surface of the luminaire main body, the shortest part of the core can be arranged at a position separated from the lamp mounting surface of the luminaire main body by the thickness of the sandwiching piece. The projecting height from the lamp mounting surface can be made substantially equal to the thickness of the sandwiching piece. Therefore, the fixture body abutting portion of the fixing portion may simply be brought into contact with the lamp mounting surface and fixed in that state, and the protruding height of the core from the lamp mounting surface is easily made lower than the conventional one. In this state, the electrodeless discharge lamp can be attached to the luminaire body.

  According to the third aspect, the outer periphery of the core can be securely clamped by the first contact portion and the two second contact portions of the sandwiching piece and the fixture body. Further, the second contact portion can be formed, for example, by bending both sides of the first contact portion of the sandwiching piece, and the second contact portion can be easily formed in a short time.

  According to the fourth aspect, the outer periphery of the core can be securely clamped by the surface contact portion of the clamping piece and the fixture main body. In addition, the contact area between the two can be increased by the surface abutting portion. For example, when the holding piece is made of a metal that can conduct heat, the heat generated from the core is transferred to the holding piece and released. And the heat dissipation of the core can be improved.

  According to the fifth aspect, since the electrodeless discharge lamp is mounted on the lamp mounting surface of the luminaire main body with the fixture for the electrodeless discharge lamp, the amount of protrusion of the core from the lamp mounting surface of the luminaire main body can be reduced. A compact lighting fixture can be provided.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a schematic view of a lamp device having a fixture for an electrodeless discharge lamp according to a first embodiment of the present invention, and FIG. 2 is a sectional view taken along line II-II in FIG.

  The lamp device 110 having the fixture 1 for an electrodeless discharge lamp according to the first embodiment of the present invention includes an electrodeless discharge lamp. As shown in FIGS. 1 and 2, this electrodeless discharge lamp includes a bulb 102, a core 103, an induction coil 104, and a high-frequency power source 105.

  The bulb 102 is made of a tubular material made of a translucent material such as glass. The valve 102 of this embodiment includes a first straight pipe part 121 and a second straight pipe part 122 having two identical shapes arranged in parallel vertically, and the first straight pipe part 121 and the second straight pipe part. And a U-shaped first bent tube portion 123 having one end connected to the other end and a U-shaped second bent tube portion 124 having the other end connected to each other. It is made into the shape of the closed loop shape (tokamak shape) which is. The first bending tube portion 123 is provided with a coldest portion 125.

  Moreover, although not shown in figure, the fluorescent substance is apply | coated to the inner surface of the bulb | bulb 102. FIG. The bulb 102 is filled with a discharge gas such as an inert gas or metal vapor. Examples of the inert gas include neon, argon, krypton, and xenon. Examples of the metal vapor include mercury, sodium, cadmium, and zinc.

  The core 103 is composed of two pieces having the same configuration. These cores 103 are made of a ferrite material (MnZn). These cores 103 are formed in a ring shape having a hole 133 having a diameter larger than the diameters of the first straight pipe portion 121 and the second straight pipe portion 122 of the valve 102.

  One core 103 configured in this manner is arranged on the left end side of the first straight pipe portion 121 in the valve 102 so that the first straight pipe portion 121 of the valve 102 is inserted into the hole 133. Yes. The other core 103 is arranged on the left end side of the second straight pipe portion 122 so that the second straight pipe portion 122 is inserted through the hole.

  The induction coil 104 is wound around a part of each of the two cores 103 (in FIG. 2, only the state wound around one core 103 is shown). Note that the number of windings and the winding direction of the induction coil 104 are set so that electric discharge is generated and maintained in the bulb 102.

  The high frequency power supply 105 is for supplying high frequency power to the induction coil 104 and is connected to each of the induction coils 104. The output of the high-frequency power source 105 is also set so that discharge can be generated and maintained in the bulb 102.

  In the electrodeless discharge lamp configured as described above, when a voltage is applied to the induction coil 104 by the operation of the high-frequency power source 105, an electromagnetic field is generated around the induction coil 104 by the voltage to form a magnetic field. The magnetic field also generates a closed loop electric field in the valve 102. This electric field generates a discharge in the bulb 102 and causes a discharge current to flow, thereby turning on the bulb 102.

  Next, the fixture 1 for electrodeless discharge lamps of 1st Embodiment of this invention is demonstrated based on FIG.1 and FIG.2. The attachment 1 for an electrodeless discharge lamp of the first embodiment is composed of a pair of the same configurations. Each fixture 1 includes a fixture body 2 and a clamping piece 3.

  Each fixture main body 2 is comprised from the metal U-shaped thing. A core receiving portion 21 that receives the core 103 is provided on the inner surface side on the front side (left side in FIG. 2) of the fixture body 2. The core receiving portion 21 is formed in a semicircular arc shape that is substantially the same shape as the outer peripheral shape of the core 103, and is configured to follow a substantially half peripheral portion of the outer periphery of the core 103.

  Moreover, the leg part 22 is provided in the up-and-down both sides in the back side (right side of FIG. 2) of the fixture main body 2, respectively. Moreover, each leg part 22 is provided with the fixing | fixed part 23 fixed to the lamp attachment surface 100a provided in the lighting fixture main body 100 mentioned later at the rear end.

  The rear surface of the fixing portion 23 constitutes a fixture main body contact portion 24 that contacts the lamp mounting surface 100a of the lighting fixture main body 100, and the fixture main body contact portion 24 is in contact with the lamp mounting surface 100a. The fixing portion 23 is fixed to the lamp mounting surface 100a of the luminaire main body 100 through fixing means such as bolts.

  Further, a locking hole 25 as a locking portion for detachably locking the holding piece 3 is provided on the front side of the fixed portion 23 in each leg portion 22.

  The sandwiching piece 3 is made of a long and thin metal plate having a predetermined thickness of elasticity. The sandwiching piece 3 is provided with a U-shaped receiving recess 34 projecting rearward substantially at the upper and lower central portion in the longitudinal direction, and supporting the receiving recess 34 on both upper and lower sides of the receiving recess 34. A piece 35 is provided.

  The receiving recess 34 is bent from both support pieces 35 and protrudes rearward, and the core first abutting portion 32 is provided in the upper and lower central portion on the front surface thereof. The core first contact portion 32 is a portion that contacts the shortest portion 103 a on the outer periphery of the core 103 received by the core receiving portion 21 of the fixture body 2. The shortest portion 103 a of the core 103 is an outer peripheral portion of the core 103 where the distance L from the luminaire main body 100 is shortest when the electrodeless discharge lamp is attached to the lamp attachment surface 100 a of the luminaire main body 100.

  Moreover, the core 2nd contact part 33 is provided in the up-and-down both ends side of the receiving recessed part 34, respectively. These core second contact portions 33 are separated from the shortest portion 103a on the outer periphery of the core 103 by a predetermined length in the circumferential direction almost simultaneously with the contact of the first core contact portion 32 with the shortest portion 103a of the core 103. It is set to abut against the part.

  In this embodiment, these core second contact portions 33 are formed so as to be vertically symmetric with respect to the core first contact portion 32. Note that these two core second contact portions 33 are not limited to the length from the core first contact portion 32 and are different from each other in length from the core first contact portion 32. You may form in a position and can change suitably.

  Each of the support pieces 35 of the sandwiching piece 3 includes a locking piece 31 that enters and is locked into the locking hole 25 at each end.

  In order to attach the electrodeless discharge lamp to the luminaire main body 100 with the fixture 1 configured as described above, first, the outer periphery of the core 103 of the electrodeless discharge lamp is pushed into the core receiving portion 21 of the fixture main body 2. To accept.

  From this state, the outer periphery of the core 103 is received in the receiving recess 34 of the holding piece 3. As a result, the first core contact portion 32 contacts the outer periphery of the core 103, and the second core contact portion 32 contacts the outer periphery of the core 103.

  Then, the locking pieces 31 at both ends are respectively inserted into the locking holes 25 so that both ends of the clamping piece 3 are pressed toward the core 103 and the clamping piece 3 is bent.

  Thereby, an elastic force acts on the clamping piece 3, and each locking piece 31 in the clamping piece 3 is locked in the locking hole 25 of the fixture body 2. Further, due to the elastic force of the sandwiching piece 3, the core first contact portion 32 that is in contact with the shortest portion 103 a of the core 103 and the portion that is separated from the shortest portion 103 a of the core 103 by a predetermined distance in the circumferential direction are contacted. The core second contact portion 33 presses the contacted portion in the direction of the core receiving portion 21 of the fixture body 2, whereby the outer periphery of the core 103 is separated by the fixture body 2 and the sandwiching piece 3. Pinch.

  In this clamping state, the portion between the core second contact portions 33 of the receiving recess 34 on the front surface (one surface) of the clamping piece 3 is disposed on a tangent line P passing through the shortest portion 103 a of the core 103. Further, the other part of the front surface (one surface) of the sandwiching piece 3 is disposed on the inner side of the core 103 side than the tangent line P.

  On the other hand, the instrument main body abutting portion 24 of the fixing portion 23 in the fixture main body 2 protrudes from the tangent line P to the opposite side of the core 103 by the thickness of the sandwiching piece 3. Therefore, when the fixture main body abutting portion 24 of the fixing portion 23 is brought into contact with the lamp mounting surface 100a of the luminaire main body 100, the fixture main body abutting portion 24 of the fixing portion 23 is more than the tangent line P. The lamp protrudes toward the lamp mounting surface 100a by substantially the thickness.

  In this state, the fixing portion 23 is fixed to the lamp mounting surface 100a by fixing means such as a bolt. Thereby, it can attach to the lighting fixture main body 100 of an electrodeless discharge lamp with the fixture 1. FIG.

  In this attached state, the core 103 protrudes from the lamp mounting surface 100a of the luminaire main body 100 by approximately the thickness of the clamping piece 3, and the lamp from the lamp mounting surface 100a of the luminaire main body 100 The protrusion amount of the entire apparatus 110 is suppressed as much as possible.

  In addition, in the said 1st Embodiment, although the fixture main body 2 and the clamping piece 3 are comprised from the metal, you may comprise from a synthetic resin, for example, and can change suitably.

  Moreover, in the said 1st Embodiment, although the core 2 contact part 33 is comprised from two, you may make it provide three or more core 2 contact parts 33, and can change suitably. .

  Next, a fixture 200 for an electrodeless discharge lamp according to a second embodiment of the present invention will be described with reference to FIG. In the previous first embodiment, one core 103 is clamped by one fixture body 2 and one clamping piece 3, whereas the electrode discharge lamp of the second embodiment is used. The fixture 200 is configured such that the two cores 103 are simultaneously clamped by one fixture body 202 and one clamping piece 203.

  Specifically, the fixture main body 202 in the second embodiment includes core receiving portions 221 at two locations on the inner surface side, the upper side and the lower side, respectively.

  The upper core receiving part 221 receives the core 103 inserted through the first straight pipe part 121 of the valve 102. The lower core receiving portion 221 is configured to receive the core 103 inserted through the second straight pipe portion 122 of the valve 102.

  The sandwiching piece 203 connects the two U-shaped receiving recesses 234 having the core first contact portion 232 and the core second contact portion 233, the support piece 235 supporting these, and the receiving recesses 234. And a connection piece 236.

  The receiving recesses 234 are provided on the upper side and the lower side, and the upper receiving recesses 234 are arranged on the shortest portion 103a on the outer periphery of the core 103 received by the upper core receiving portion 221. While the abutting portion 232 abuts, the core second abutting portion 233 abuts on a portion of the outer periphery of the core 103 that is a predetermined distance away from the shortest portion 103a in the circumferential direction.

  On the other hand, the lower receiving recess 234 is configured such that the core first contact portion 232 contacts the shortest portion 103 a of the outer periphery of the core 103 received by the lower core receiving portion 221 and the shortest of the outer periphery of the core 103. The core second contact portion 233 comes into contact with a portion separated from the portion 103a by a predetermined distance in the circumferential direction.

  Further, in a state where the core 103 is sandwiched between the fixture body 202 and the sandwiching piece 203, the portion between the core second contact portions 233 of the receiving recess 234 on the front surface (one surface) of the sandwiching piece 203 is the shortest of the core 103. It arrange | positions on the tangent P which passes along the part 103a. Further, the other part of the front surface (one surface) of the sandwiching piece 203 is arranged on the inner side of the core 103 side than the tangent line P.

  On the other hand, the instrument main body abutting portion 224 of the fixture main body 202 protrudes outward from the tangent line P on the opposite side of the core 103 by approximately the thickness of the sandwiching piece 203. When the contact portion 224 is brought into contact with the lamp mounting surface 100a of the luminaire main body 100, the fixture main body contact portion 224 of the fixing portion 223 has a lamp mounting surface 100a substantially equal to the thickness of the holding piece 203 from the tangent line P. It protrudes to the side.

  From this state, the fixing portion 223 is fixed to the lamp mounting surface 100a of the luminaire main body 100 by a fixing means such as a bolt, so that it can be attached to the luminaire main body 100 of the electrodeless discharge lamp. The other configuration is the same as that of the first embodiment.

  In the second embodiment, it is particularly preferable that the fixture body 202 and the holding piece 203 are made of metal. By making the fixture body 202 made of metal, the heat of the core 103 is conducted and attached. It can escape from the tool main body 202 and the clamping piece 203, and the heat dissipation of the core 103 can be improved. However, also in this 2nd Embodiment, one or both of the fixture main body 202 and the clamping piece 203 can also be comprised from things other than metals, such as a synthetic resin, and can change suitably.

  Next, a fixture 300 for an electrodeless discharge lamp according to a third embodiment of the present invention will be described with reference to FIG. The receiving recess 334 of the clamping piece 303 in the fixture 300 for an electrodeless discharge lamp according to the third embodiment includes a surface contact portion 336 that can come into surface contact with the outer periphery of the core 103.

  Specifically, the receiving recess 334 of the sandwiching piece 303 in the third embodiment is formed in a curved shape and includes a core first contact portion 332 and a core second contact portion 333, and a surface contact portion. 336.

  The core second contact portion 333 contacts the outer periphery of the core 103 on both the upper and lower sides of the core first contact portion 332 over a predetermined length range from the core first contact portion 332 in the longitudinal direction. Configured to get.

  In this embodiment, the surface contact portion 336 includes a portion between the upper core second contact portion 333 and the core first contact portion 332 and the core first contact portion 332 and the lower portion of the sandwiching piece 303. It is continuously provided in the part between the core second contact part 333 on the side.

  Each surface contact portion 336 is formed in an arc having the same shape as the outer peripheral shape of the core 103, so that the upper core second contact portion 333 and the lower core second contact portion on the outer periphery of the core 103 are formed. 333 is configured to be able to make surface contact with the entire portion while the 333 is in contact with each other.

  Then, in a state where the core 103 is sandwiched between the fixture main body 302 and the sandwiching piece 303, only the core first contact portion 332 on the front surface (one surface) of the sandwiching piece 303 is on the tangent line P passing through the shortest portion 103a of the core 103. The other portions are arranged on the inner side of the core 103 side than the tangent line P.

  On the other hand, the instrument main body abutting portion 324 of the fixing portion 323 in the fixture main body 302 protrudes from the tangent line P to the opposite side of the core 103 by approximately the thickness of the holding piece 303. When the fixture main body abutting portion 324 of the H.323 is brought into contact with the lamp mounting surface 100a of the lighting fixture main body 100, the fixture main body abutting portion 324 of the fixing portion 323 is substantially equal to the thickness of the holding piece 303 from the tangent line P. It will be in the state protruded to the lamp attachment surface 100a side.

  From this state, the fixing portion 323 is fixed to the lamp mounting surface 100a of the luminaire main body 100 by fixing means such as a bolt, so that it can be attached to the luminaire main body 100 of the electrodeless discharge lamp. The other configuration is the same as that of the first embodiment.

  Next, the fixture 400 for electrodeless discharge lamps of 4th Embodiment of this invention is demonstrated based on FIG. The clamping piece 403 in the fixture 400 for an electrodeless discharge lamp of the fourth embodiment is not provided with the core receiving portion as in the previous embodiment, and the core first contact portion 432 and the core first contact are not provided. It is comprised from the support piece 435 which supported the part 432 from the up-and-down both sides.

  The sandwiching piece 403 in the fourth embodiment is composed of a straight, long and thin plate that is straightly extended in the vertical direction, and is vertically centered on the front surface (the left surface in FIG. 5). The first core abutting portion 432 is provided.

  The electrodeless discharge lamp fixture 400 of the fourth embodiment configured as described above is configured so that the core 103 received in the core receiving portion 421 of the fixture main body 402 is clamped between the clamp pieces 403. Is entirely disposed on a tangent line P passing through the shortest portion 103 a of the core 103.

  In this embodiment, the fixture body abutting portion 424 of the fixing portion 423 in the fixture main body 402 is opposite to the core 103 by the thickness of the holding piece 403 and the thickness of the fixing portion 423 from the tangent line P. It protrudes to the outside of the side. Therefore, when the fixture main body abutting portion 424 of the fixing portion 423 is brought into contact with the lamp mounting surface 100a of the lighting fixture main body 100, the fixture main body abutting portion 424 of the fixing portion 423 is closer to the holding piece 403 than the tangent line P. The lamp protrudes toward the lamp mounting surface 100a by the thickness and the thickness of the fixing portion 423.

  Then, from this state, similarly to the first embodiment, the fixing portion 423 is fixed to the lamp mounting surface 100a of the lighting fixture main body 100 by fixing means such as a bolt, thereby the lighting fixture main body 100 of the electrodeless discharge lamp. Can be installed on. The other configuration is the same as that of the first embodiment.

  In addition, although the clamping piece 403 of this 4th Embodiment is comprised from the straight thing, it is not restricted to the thing of this form, For example, as shown in FIG. By bending both end portions forward, the front surface of the locking portion 421 of the sandwiching piece 403 is disposed closer to the core 103 than the tangent line P passing through the shortest portion 103a of the core 103, and is fixed to the fixture main body 402. The instrument main body abutting portion 424 of the portion 423 may be disposed so as to protrude from the tangent line P to the outer side opposite to the core 103 by substantially the thickness of the sandwiching piece 403.

  By doing so, the amount of protrusion of the core 103 from the lamp mounting surface 100a can be set to be approximately the thickness of the sandwiching piece 403, and the amount of protrusion can be suppressed as much as possible.

  Next, a fixture 500 for an electrodeless discharge lamp according to a fifth embodiment of the present invention will be described with reference to FIG. A fixture 500 for an electrodeless discharge lamp according to the fifth embodiment is configured to sandwich the two cores 103 with one fixture body 502 and one clamping piece 503, and with the fixture body 502, The clamping piece 503 is comprised from a pair of things which mutually take the same structure.

  More specifically, the fixture main body 502 according to the fifth embodiment includes a core receiving portion 521 on the inner surface side of the upper side and the front side of the lower side. Further, fixing portions 523 for fixing the fixture main body 502 to the lamp mounting surface 100a of the lighting fixture main body 100 are provided at the rear ends of the upper and lower sides of the fixture main body 502, respectively.

  The upper core receiving part 521 receives the core 103 inserted through the first straight pipe part 121 of the valve. The lower core receiving portion 521 receives the core 103 inserted through the second straight pipe portion 122 of the valve.

  The sandwiching piece 503 includes two receiving recesses 534 provided on the upper side and the lower side, a support piece 535 that supports them, and a connection piece 537 that connects the receiving recesses 234 to each other.

  Each of the receiving recesses 534 includes a first core contact portion 532 and a surface contact portion 536. The surface contact portion 536 in the upper receiving recess 534 is formed in an arc having the same shape as the outer peripheral shape of the core 103 over a predetermined length range from the core first contact portion 532 upward. The upper and lower portions of the outer periphery of the core 103 received by the core receiving portion 521 on the upper side between the core first contact portion 532 and the fixture main body 502 can be in surface contact.

  The surface contact portion 536 in the receiving recess 534 on the lower side is formed in an arc having the same shape as the outer peripheral shape of the core 103 over a predetermined length range from the core first contact portion 532 to the lower side. It is configured to be able to come into surface contact with the lower rear portion between the core first contact portion 532 and the fixture body 502 on the outer periphery of the core 103 received by the lower core receiving portion 521.

  In addition, the support piece 535 of this embodiment is overlapped on the rear surface side of the fixing portion 523 of the fixture main body 502, and the core 103 is sandwiched by the overlap.

  In the state where the core 103 is sandwiched between the fixture main body 502 and the sandwiching piece 503, the core first contact portion 532 and the connection piece 536 on the front surface (one surface) of the sandwiching piece 503 are the shortest portion 103 a of the core 103. The other part is arranged on the inner side of the core 103 side than the tangent line P.

  Then, in this state, the sandwiching piece 503 side is interposed, for example, between the lamp mounting surface 100a of the luminaire main body 100 and the support piece 535 of the sandwiching piece 503, so that the tubular body 540 having a bolt insertion hole is interposed. A bolt passed through the cylindrical body 540 from the fixing portion 523 side of the main body 502 is fixed to the lamp mounting surface 100 a of the lighting fixture main body 100. Thereby, an electrodeless discharge lamp can be attached to the lighting fixture main body 100. The other configuration is the same as that of the first embodiment.

  Next, the lighting fixture 600 will be described with reference to FIG. The luminaire 600 includes a luminaire main body 100 and a lamp device 110 having the fixture 1 for an electrodeless discharge lamp.

  The lighting fixture main body 100 of this embodiment is provided with a storage recess 120 for storing an electrodeless discharge lamp. A lamp mounting surface 100 a is provided on the bottom wall 121 inside the storage recess 120.

  As the lamp device 110, one having the fixture 1 for the electrodeless discharge lamp of the first embodiment shown in FIG. 1 is used.

  The lighting fixture 600 configured as described above can reduce the protruding height of the electrodeless discharge lamp from the lamp mounting surface 100a of the lighting fixture main body 100 by the fixture 1 and is compact.

  Note that the fixture 1 of the lighting fixture 600 is not limited to the one using the first embodiment, and any one of the second to fifth embodiments can be appropriately selected and used. Can be changed as appropriate.

It is the schematic of the lamp device which has the fixture for electrodeless discharge lamps of 1st Embodiment of this invention. It is the II-II sectional view taken on the line of FIG. It is sectional explanatory drawing of the state which clamped the core of the electrodeless discharge lamp with the fixture for electrodeless discharge lamps of 2nd Embodiment of this invention. It is sectional explanatory drawing of the state which clamped the core of the electrodeless discharge lamp with the fixture for electrodeless discharge lamps of 3rd Embodiment of this invention. It is sectional explanatory drawing of the state which clamped the core of the electrodeless discharge lamp with the fixture for electrodeless discharge lamps of 4th Embodiment of this invention. It is sectional explanatory drawing of the state which clamped the core with the clamping piece of other embodiment in the fixture for electrodeless discharge lamps of 4th Embodiment. It is sectional explanatory drawing of the state which clamped the core of the electrodeless discharge lamp with the fixture for electrodeless discharge lamps of 5th Embodiment of this invention. It is sectional explanatory drawing of the state which attached the electrodeless discharge lamp to the lighting fixture main body with the fixture for electrodeless discharge lamps. It is sectional explanatory drawing of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,200,300,400,500 Fixing tool for electrodeless discharge lamps 2 Mounting tool main body 3 Holding pieces 32, 232, 332, 432, 532 Core first contact portion 33, 233, 333 Core second contact portion 334 Surface contact portion 100 Lighting equipment body 102 Valve 103 Core 104 Inductive coil 105 High frequency power supply

Claims (5)

A fixture body that receives an outer periphery of a ring-shaped core provided in the electrodeless discharge lamp and is fixed to a lamp mounting surface provided in the luminaire main body, a core received in the fixture body, and the lamp attachment A fixture for an electrodeless discharge lamp that is disposed between a surface and an electrodeless discharge lamp that attaches the electrodeless discharge lamp to the luminaire main body by an elastic plate-like clamping piece that clamps the outer periphery of the core with the fixture main body Because
When the clamping piece is clamped between the core and the fixture main body, one surface abuts on the shortest portion arranged at a position where the distance from the lamp mounting surface on the outer periphery of the core is the shortest, and A fixture for an electrodeless discharge lamp, wherein the fixture is arranged so as to be disposed at substantially the same position as the core side or the tangent line with respect to the tangent line passing through the shortest portion. The fixture body is composed of a substantially U-shaped one, and one end side of the fixture body is provided with a core receiving portion for receiving the outer periphery of the core, and the other end side is fixed to the lamp mounting surface. Fixed part is provided,
The fixed portion includes an instrument body abutting portion that abuts on the lamp mounting surface,
When the abutment body abutting portion abuts on the lamp mounting surface in a state where the core received by the core receiving portion is sandwiched between the clamping piece, the appliance main body abutting portion is substantially tangential to the clamping piece by the thickness. The fixture for an electrodeless discharge lamp according to claim 1, wherein the fixture is configured to protrude toward the lamp mounting surface.   One surface of the sandwiching piece is provided with a core first contact portion that contacts the shortest portion of the core, and at least two places sandwiching the first contact portion on the outer periphery of the core, respectively. The fixture for an electrodeless discharge lamp according to claim 1 or 2, further comprising a core second abutting portion that abuts.   One surface of the clamping piece is provided with a core first contact portion that contacts the shortest portion of the core, and the core extends from the first contact portion in a longitudinal direction over a predetermined length range. The fixture for electrodeless discharge lamps as described in any one of Claims 1-3 provided with the surface contact part which surface-contacts to the outer periphery of this. A lighting fixture main body, an electrodeless discharge lamp having a ring-shaped core, and a fixture for an electrodeless discharge lamp according to any one of claims 1 to 4,
The lighting fixture body is provided with a lamp mounting surface for mounting an electrodeless discharge lamp,
The said electrodeless discharge lamp is attached to the said lamp mounting surface with the fixture for said electrodeless discharge lamps, The lighting fixture characterized by the above-mentioned.

Images