JP2005158334A - Bulb shaped fluorescent lamp and luminaire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bulb shaped fluorescent lamp wherein the bulb shaped fluorescent lamp comprising different kinds of materials can be easily separated without damaging it and efficiency of separating operation is improved. <P>SOLUTION: Since a holder 70 and a globe 40 are fixed by elongation and expansion of a fixing member 80 having elasticity and flexibility, the holder and the globe can be easily separated by releasing a support member stretching and expanding the fixing member fixing the globe and the holder without damaging them in a separating operation for disposing. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a separable bulb-type fluorescent lamp.

  A bulb-type fluorescent lamp is composed of an arc tube and globe mainly composed of glass material, a lighting device mainly composed of metal and resin, a resin cover body that accommodates these, and a metal base that is an electric power receiving unit. Is formed. For this reason, it is very troublesome and difficult to separate the light bulb-type fluorescent lamps that are discarded due to their lifetimes into different materials.

  In recent years, various types of recycling have been performed from the viewpoint of the global environment. However, in the light bulb-type fluorescent lamp as described above, it is very time-consuming to separate each constituent material. In particular, since the cover body and the glove are fixed by silicon resin, it is not easy to separate each member. In particular, the glove is firmly fixed with an adhesive such as a silicone resin in a slight gap between edges of the cover body and the cover body in order to prevent the glove from being dropped or detached from the cover body. In addition, the holder as a partition plate for holding the arc tube is fitted by the unevenness formed on the portion that contacts the cover body wall, but silicon resin as an adhesive between the globe and the cover body enters the gap. Therefore, it is not easy to separate the constituent members.

  On the other hand, in a bulb-type fluorescent lamp having a light emitting tube, a lighting device for lighting the light emitting tube, and a cover body for housing the lighting device, irregularities are formed in the connecting surface portion of the cover body and the globe to which the light emitting tube is attached. A technique is known in which a glove can be arbitrarily attached and detached by fitting each other (see, for example, Patent Document 1).

As another light bulb-type fluorescent lamp, a technique of fitting or separating the connection between the cover body and the globe by screwing is also known (for example, see Patent Document 2).
Japanese Patent Laid-Open No. 10-134614 JP 2002-260408 A

  However, although the bulb-type fluorescent lamp of Patent Document 1 or 2 can be easily separated from the cover body and the globe, it is difficult for general consumers to secure the safety of the product. The problem arises. Furthermore, it takes time and labor to separate the cover body, the holder as the partition plate, and the arc tube, and the separation is difficult.

  SUMMARY OF THE INVENTION In order to solve or reduce the above-mentioned problems, an object of the present invention is to provide a bulb-type fluorescent lamp that can easily separate bulb-type fluorescent lamps made of different materials and improves the efficiency of separation work. To do.

  The bulb-type fluorescent lamp according to claim 1 is a fluorescent lamp in which a discharge medium is enclosed, a phosphor layer is formed on the inner surface, and a pair of electrodes are sealed at both ends of one bent discharge path; A holder that supports the fluorescent lamp and has a plurality of support members; has a base on one end, has an opening that expands in a substantially conical shape from one end to the other, and lights the fluorescent lamp on the inside A cover body containing the lighting device to be operated; and a fixing member having elasticity that can be contacted and fixed to the inner peripheral wall of the globe by expanding (expanding) with the support member. It is what.

  Fluorescent lamps are heated and melted at the center of a straight tubular glass bulb to bend, or the bent portion is curved or arcuate even when bent into a U shape by molding the glass bulb. The bent portion may be formed in a square shape or a sharp shape. In short, it means a bulb formed so that one ends of the straight portions are continuous so that the discharge path is bent. Further, the bent valve may be connected by a communication pipe formed by blowing one end of two substantially parallel straight portions, or may be formed in a spiral shape. The bending valve may not be made of glass, and is allowed to be formed of a material such as ceramic that can form a light-transmitting airtight container.

  A phosphor layer is applied directly or indirectly to the inner surface of the fluorescent lamp.

  Electrodes are sealed at both ends of the fluorescent lamp. Examples of the electrode include a hot cathode made of a filament, a ceramic electrode carrying an electron emitting material, and a cold cathode made of nickel.

  A discharge medium is sealed inside the bulb. The discharge medium is made of an inert gas such as argon, neon, krypton, or xenon and mercury.

  The cover body is provided with a base, and is provided with a glove on one end side and the other end side to which the base is attached, and a housing space for the lighting device is formed therein.

  As the base, a screw-in type called an E-type for an incandescent lamp is usually used, but it is not limited to this. Further, the base need not be directly attached to the cover body, but may be indirectly attached to the case or a part of the cover body may constitute the base.

  The lighting device is accommodated in the cover body. The board | substrate of the lighting device is stored by being attached directly or indirectly to the cover body. The lighting device is generally provided with a smoothing electrolytic capacitor, but is not limited thereto.

  The arc tube is attached to at least one disk-shaped partition plate constituting the holder. The shape, number, material and the like of the partition plate are not particularly limited as long as the arc tube can hold the arc tube.

  Furthermore, if the support member constituting the holder has a structure in which the fixing member is interposed between the holder and the globe by expanding (expanding) the fixing member for fixing the holder to the globe, A material etc. are not specifically limited. If the support member is cylindrical, an insertion hole having substantially the same shape as the support member is formed on the substrate. The support member needs to be strong enough to withstand the contraction pressure of the holder fixing member. When there are a plurality of partition plates, it is preferable that they have substantially the same outer diameter and are supported by a support member so that their surfaces are substantially parallel to each other. For example, when two partition plates are provided, an air layer is formed between the two partition plates held by the support member, so that an increase in temperature of the lighting device due to heat on the arc tube side can be suppressed. Play.

  The fixing member for fixing the holder to the globe preferably has stretchability, elasticity, and adhesion. For example, what was formed from materials, such as a silicone resin, a polyurethane fiber, and rubber | gum, is mentioned.

  A circuit board as a lighting device housed in the cover body is provided with an inverter circuit (PC board) which is arranged perpendicular to the longitudinal direction of the arc tube and has a plurality of electronic components mounted on both sides, and performs high-frequency lighting ( A high-frequency lighting circuit).

  According to the bulb-type fluorescent lamp of claim 1, since the holder and the globe are fixed by expansion of the fixing member having elasticity and flexibility, the separation operation at the time of disposal is the fixing for fixing the globe and the holder. By releasing the supporting member that expands the member, it is possible to provide a bulb-type fluorescent lamp that can be easily and without being damaged, the holder and the globe.

  The bulb-type fluorescent lamp according to claim 2 is a fluorescent lamp in which a discharge medium is sealed and a phosphor layer is formed on the inner surface, and a pair of electrodes are sealed at both ends of one bent discharge path; Houses a lighting device for lighting the lamp, and has a plurality of notches extending around the opening that is expanded in a substantially conical shape from one end side to the other end side that is formed in a cylindrical shape to cover the base. A cover body attached so as to overlap with the globe; one end side is formed in a substantially spherical shape, and an opening portion extending from one end side to the other end side so that the width direction is reduced. And a glove that is attached to overlap the opening and the cover body opening; and a fixing member that is arranged in an annular shape through a notch around the overlap of the glove of the cover body and fastens each other by tightening; Has Theft is possible.

  It is desirable that the outer diameter of the globe opening and the inner diameter of the cover body opening are substantially the same. In order to support each other by fastening the fixing member so as to form an annular shape in the circumferential direction of the overlapping portion of the cover body and the globe, it is necessary to have a thickness and shape that can withstand the fastening pressure. Further, the notch formed around the opening of the cover body temporarily fixes the fixing member for tightening and fixing the globe and the cover body. The shape of the groove is not particularly limited. Furthermore, even if formed integrally, it may be formed by another member.

  As long as the fixing member can support the cover body and the globe by tightening from the circumferential direction, the fixing member may be, for example, a belt-like and formed of an annular rubber, or a metal flat plate. I do not care. In short, the material and its specific structure are not particularly limited as long as the cover body and the globe can be fixed by tightening.

  According to the light bulb shaped fluorescent lamp according to claim 2, since the cover member and the globe are tightened and fixed over the overlapping periphery of the cover body and the globe through the notch opening formed in the vicinity of the cover body opening, The fixing member can be easily separated by cutting the fixing member positioned outside the cover body, and each member can be recycled because it can be separated without damage.

  A light bulb shaped fluorescent lamp according to a third aspect is characterized in that the fixing member according to the second aspect is a heat shrinkable member.

  Examples of the heat shrink member include, but are not limited to, ethylene propylene, polyolefin, fluorine resin, and silicon.

  According to the light bulb shaped fluorescent lamp of the third aspect, there is no particular need for a fixing step, so that the manufacturing efficiency can be improved.

  According to a fourth aspect of the present invention, there is provided a lighting fixture comprising: the bulb-type fluorescent lamp according to any one of the first to third aspects; and a fixture main body to which the bulb-type fluorescent lamp is mounted.

  The lighting fixture of Claim 4 can provide the lighting fixture provided with the lightbulb-shaped fluorescent lamp of any one of Claim 1 thru | or 3.

  Hereinafter, embodiments of the light bulb-type fluorescent lamp of the present invention will be described with reference to the drawings.

  FIG. 1 is a side sectional view of a bulb-type fluorescent lamp showing a first embodiment. FIG. 2 is an exploded perspective view of the envelope of FIG. FIG. 3 is a partial cross-sectional view taken along line A-A ′ of FIG. 1. FIG. 4 is an exploded side view of FIG.

  The bulb-type fluorescent lamp includes a cover body 20 having a base 10, a lighting device 30 housed in the cover body 20, a glass globe 40 formed of a light-transmitting glass material, and the glass globe 40 And an arc tube 50 accommodated therein. And the outer periphery comprised from the glass globe 40 and the cover body 20 is formed in the external appearance which approximates the standard dimension of the incandescent lamp of rated power 60W. That is, the lamp length including the base 10 is about 98 to 123 mm, and the diameter, that is, the maximum outer diameter of the glass globe 40 is about 55 to 60 mm. In the following description, the base 10 side is the upper side and the glass globe 40 side is the lower side.

  The cover body 20 is formed of a heat resistant synthetic resin, for example, polybutylene terephthalate (PBT). The cover body 20 has a substantially conical shape that expands downward, has an opening 21 of about 40 to 50 mm on the lower end side, and a cylindrical portion that covers the base 10 is integrally formed at the upper end. . In addition, as shown in FIG. 2, a notch through which a metal band 60 for tightening and fixing a later-described globe 40 and a cover body 20 is inserted into a portion overlapping with a later-described globe opening 41 as shown in FIG. 2, around the opening 21 located on the lower end side. An opening 22 is formed.

  The glass globe 40 shown in FIG. 2 (a) is formed into a smooth curved surface having substantially the same shape as a glass bulb of an incandescent lamp by a glass material such as milky white having transparency or light diffusibility. The opening 41 of the glass globe 40 has substantially the same diameter as the opening 21 at the lower end of the cover body 20 and is formed in an uneven shape around the periphery of the opening 41. In addition, as shown in FIG. 3, a metal band 60 is annularly interposed so that the cover body and the globe overlap each other by a band-like fastening fixing member made of a metal having a width of about 5 mm and a thickness of about 1 mm, for example, SUS. ing. In addition, by using the fastening fixing member as a metal material, the heat in the space sealed by the lighting globe 40 and the cover body 20 can be efficiently radiated to the outside by the heat conduction of the metal.

  The lighting device 30 accommodated in the cover body 20 includes a circuit board 31 (PC board) arranged horizontally, that is, perpendicularly to the longitudinal direction of the arc tube 50, on both sides of the circuit board 31, that is, on the base 10 side. A plurality of electronic components 32 are mounted on a certain upper surface and a lower surface on the arc tube 50 side to constitute an inverter circuit (high frequency lighting circuit) that performs high frequency lighting. The circuit board 31 has a substantially disc shape, and a pair of lead wires (not shown) led out from the circuit board are electrically connected to the arc tube 50 and on a partition plate 71 constituting a holder 70 described later. It is arranged.

  In the arc tube 50, four bulbs 51 having substantially the same shape are arranged at predetermined positions and are sequentially connected by a communicating tube to form a single discharge path. An electrode made of a filament coil or the like (not shown) is provided at the end of the discharge path, and the four lead wires led out from the arc tube 50 are connected to the lighting device 30. Each bulb 51 has an inner surface coated with a three-wavelength light emitting phosphor film, and a rare gas such as argon and mercury are sealed inside. The arc tube 50 is attached to a holder 70 (partition plate).

  The holder 70 has two disc-shaped partition plates 71 and 72 constituting the holder 70, and is formed with a substantially same outer diameter and a pair of support members so that their surfaces are parallel to each other. 73,74. Further, as shown in FIG. 2B, the first partition plate 71 located on the base 10 side has a region where the lighting device 30 is disposed, and an insertion for inserting a support member around the outer periphery of the region. Holes 75 and 76 are formed on the diagonal lines, respectively. The circuit board 31 is fixed so as to be sandwiched between a pair of support members 73 and 74, for example.

  The second partition plate 72 positioned on the arc tube 50 side is integrally formed with a support wall 73 as a single support member that stands at the periphery of a part of the partition plate. An insertion hole 76 for inserting a support wall 74 as the remaining support member is formed on the diagonal line. Further, on the circumference of the second partition plate 72, the arc tube holding structure for inserting and holding the end of the arc tube at a position opposite to the arc tube 50 is substantially the same diameter as the outer diameter of the arc tube 50. have. In the arc tube holding structure, a substantially cylindrical tubular projection 77 is formed on the side surface not facing the first support plate 71 so as to have a diameter substantially smaller than the outer diameter of the bulb 51. The cylindrical protrusion 77 is provided with a slit 77a in the height direction, and the end of the valve 51 is held by its elasticity.

  Above the second partition plate 72 holding the arc tube 50, a first partition plate 71 on which the lighting device 30 is mounted is disposed. The first partition plate 71 and the second partition plate 72 are held by the pair of support walls 73 and 74 so as to maintain a substantially parallel state without contacting each other, and the holder fixing member 80 is interposed between the partition plates 73 and 74. Intervene.

  The holder fixing member 80 needs to be contractible in order to fix the holder 70 by being expanded by the pair of support walls 73 and 74, and is made of, for example, a cylindrical silicon resin. The holder fixing member 80 is disposed between the two partition plates 71 and 72 so as to form a cylindrical air layer having a substantially elliptical cross section surrounded by the fixing member 80 and the pair of partition plates 71 and 72. The holder fixing members 80 are in close contact with each other by contacting the inner peripheral wall of the globe opening 41.

  The bulb-type fluorescent lamp of this embodiment has an input power rating of 12 W, and the arc tube is applied with 10.5 W of power at a high frequency, the lamp current is 190 mA, the lamp voltage is 58 V, and the light output from the arc tube 18 The luminous flux is about 810lm.

  When it is determined that the bulb-type fluorescent lamp has reached the end of its life due to non-lighting of the fluorescent lamp, etc., it is easy to disassemble the bulb-type fluorescent lamp and take out recyclable parts. Can be separated.

  Next, a method for disassembling the bulb-type fluorescent lamp will be described. First, the caulking of the base 10 covered with the cover body 20 is loosened to remove the base 10 from the cover body 20, and a lead wire (not shown) that electrically connects the base 10 and the lighting device 30 is cut and connected. To release. Next, the cover body 20 and the globe 40 are separated by cutting the metal band 60 as a fastening member that is fastened and fixed so as to sew the cover body 20 and the globe 50 together. Next, the fluorescent lamp 50 surrounded by the globe 50 and held by the holder 70 is separated from the lighting device 30.

  Next, the two partition plates 71 and 72 are supported, and one of the support walls 74 that extends the holder fixing member 80 that fixes the globe 50 and the holder 80 is pulled out, thereby expanding and contracting. The silicon resin used as the holder fixing member 80 is reduced, the fixing of the globe 50 and the holder 80 is released, and the globe 50 can be separated without being damaged. Further, the lighting device 30 disposed on the first partition plate 71 can be removed by cutting an electrode lead wire (not shown) connecting the arc tube 50 and the lighting device 30. Further, by cutting the lead wire in which the lighting device 30 and the arc tube 50 are electrically connected, the arc tube 50 is supported only by the elasticity of the cylindrical portion of the second partition plate 72, so that the partition plate It can be separated by pulling out from 72.

  In this way, bulb-type fluorescent lamps can be separated into components, and furthermore, each component can be separated without destruction or damage, making it possible to recycle, reducing waste generation, and recycling resources. Can be used.

  The method of fixing the cover body 20 and the globe 40 is not limited to the present embodiment. For example, as shown in FIG. 5, the cover body 20 has a plurality of convex portions 23 on the inner wall portion that overlaps the globe 40. Then, a fixing member 24 made of, for example, an annular heat shrinkable fluororesin is interposed in the convex portion 23. Next, insert the globe 40 so that the inner periphery of the opening of the globe 40 is in contact with the cover convex part 23 and the fixing member 24, and the outer periphery of the opening of the globe 40 is in contact with the inner periphery of the cover 20, and then heated by warm air from the outer periphery of the cover By doing so, the fixing member may be contracted to fix the glove and the cover body. Furthermore, mutual fixation may be performed by screwing. When fixing each other by screwing, it is necessary to be fitted so that the fixed state is not released by torque generated when the bulb-type fluorescent lamp is attached to and detached from the socket.

  The method of holding the arc tube in the holder is not limited to the present embodiment as long as it can be separated without damaging the components, and may be connected by silicon resin as in the conventional case.

  Next, the lighting fixture which is the 1st Embodiment of this invention is demonstrated using FIG. FIG. 6 is a schematic cross-sectional view showing an embodiment of the lighting fixture of the present invention. In the figure, 91 is a bulb-type fluorescent lamp, and 90 is an embedded lighting fixture body. The instrument body 90 includes a base 92, a reflector 93, and the like.

The light-bulb-type fluorescent lamp side surface sectional drawing which shows 1st Embodiment. The envelope exploded perspective view of FIG. FIG. 2 is a partial cross-sectional view taken along line A-A ′ of FIG. 1. The exploded side view of FIG. Sectional drawing which shows another fixing structure of a glove | globe and a cover body. The embedded lighting fixture which shows 1st Embodiment.

Explanation of symbols

10 ... base, 20 ... cover body, 22 ... notch opening, 30 ... lighting device, 40 ... glove,
50 ... arc tube, 60 ... metal strip, 70 ... holder, 71 ... first divider plate, 72 ... second divider plate
73 ··· Support wall, 80 ··· Holder fixing member

Claims (4)

A fluorescent lamp in which a discharge medium is enclosed, a phosphor layer is formed on the inner surface, and a pair of electrodes are sealed at both ends of one bent discharge path;
A holder for supporting the fluorescent lamp and having a plurality of support members;
A cover body that has a base on one end side, has an opening that expands in a substantially conical shape from one end side to the other end side, and houses a lighting device that lights a fluorescent lamp inside;
A fixing member having a stretchability to contact and fix the holder to the inner peripheral wall of the globe by expanding (expanding) with the support member;
A bulb-type fluorescent lamp characterized by comprising: A fluorescent lamp in which a discharge medium is enclosed, a phosphor layer is formed on the inner surface, and a pair of electrodes are sealed at both ends of one bent discharge path;
A lighting device for lighting a fluorescent lamp is accommodated, and a plurality of notches are formed around an opening that is expanded in a substantially conical shape from one end side to the other end side that is formed in a cylindrical shape to cover the base. A cover body that has an opening and is attached to overlap the globe;
One end side is formed in a substantially spherical shape, and has an opening extending so that the width direction is reduced from one end side to the other end side, and is attached so that the opening and the cover body opening overlap. With a glove that can be;
A fixing member having a stretchability capable of contacting and fixing the holder to the inner peripheral wall of the globe by expanding (expanding) with the support member;
A bulb-type fluorescent lamp characterized by comprising: The bulb-type fluorescent lamp according to claim 2, wherein the fixing member is a heat shrinkable material. A bulb-type fluorescent lamp according to any one of claims 1 to 3;
An instrument body equipped with this bulb-type fluorescent lamp;
The lighting fixture characterized by comprising.

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