JP2010044893A - Straight fluorescent tube - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a straight fluorescent tube easy to pack. <P>SOLUTION: The straight fluorescent tube 900 includes: a straight glass tube bulb 100 having a pair of filament electrodes 120 sealed and mounted into both ends, respectively, and a phosphor film 130 applied onto the inner surface, and filled with at least mercury and noble gas; and bases 200 mounted at the ends of the straight glass tube bulb 100, respectively. A pair of connection pins 310 each have a male screw groove in the outer peripheral face of the front end. The bases 200 have a pair of screw holes 210 which have female screw grooves in the inner peripheral faces. The connection pins 310 are mounted and fixed onto the bases 200 by threading the front ends of the pair of connection pins 310 to the screw holes 210. They can be demounted from the bases 200 when removed from the screw holes 210. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a straight tube fluorescent lamp. More specifically, the present invention relates to a straight tube fluorescent lamp that can reduce packing of the straight tube fluorescent lamp.

  The straight tube fluorescent lamp is packaged in a packaging sack formed of cardboard or the like in order to protect the glass tube bulb and the like from external impacts before being attached to an adapter provided on an installation surface such as a ceiling.

  As a packaging sack for a straight tube fluorescent lamp, for example, there is a structure in which single-stage cardboard is bent in order to form a rectangular parallelepiped.

  As a simplification of such a packaging sack, for example, Patent Document 1 has an arc tube provided with a pair of electrodes inside, and a base part that holds terminal pins connected to the electrodes, A straight tube fluorescent lamp is described in which the terminal pins are erected in a direction substantially orthogonal to a main light emitting surface formed by the arc tube.

  In this straight tube fluorescent lamp, the length of the packaging sack in the longitudinal direction can be reduced by the length of the terminal pin erected in the orthogonal direction.

However, since the terminal pins are erected in a direction perpendicular to the main light emitting surface of the arc tube, the cost of the packaging material can be increased due to an increase in the cross-sectional area of the packaging sack.
JP-A-10-112256

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a straight tube fluorescent lamp capable of reducing the packaging material and performing economical packaging. It is another object of the present invention to provide a straight tube fluorescent lamp that can be packaged easily.

In order to achieve the above object, a straight tube fluorescent lamp according to the first aspect of the present invention comprises:
A straight glass tube bulb comprising a pair of filament electrodes sealed at both ends and a phosphor film deposited on the inner surface, and at least mercury and a rare gas sealed inside,
A base mounted on each end of the straight tube glass tube bulb,
A pair of connection pins are detachable from the base.

In order to achieve the above object, a straight tube fluorescent lamp according to the second aspect of the present invention provides:
A straight glass tube bulb comprising a pair of filament electrodes sealed at both ends and a phosphor film deposited on the inner surface, and at least mercury and a rare gas sealed inside,
A base having a pair of connection pins attached to each end of the straight tube glass tube bulb,
The pair of connection pins can be bent.

  The straight tube fluorescent lamp according to the present invention can be packaged easily.

(Embodiment 1)
As shown in FIG. 1, a straight tube fluorescent lamp 900 according to this embodiment includes a straight tube glass tube bulb 100 and a base 200.

  The base 200 is attached to each end of the straight glass tube bulb 100.

  As shown by the arrows in FIG. 1, the pair of connection pins 300 can be attached to and detached from the base 200.

  When packing the straight tube fluorescent lamp 900 in a packaging sack, the pair of connection pins 300 are attached to and detached from the base 200. Thereby, since the packaging sac can be shortened by the length of the connecting pin 300 to be attached / detached, the packaging sack can be simplified and packaging can be performed easily.

  Moreover, the straight tube type glass tube valve 100 according to the present embodiment has an accident such that the connection pin 300 is stuck into a person or the like by attaching / detaching the connection pin 300 before being attached to an adapter provided on a ceiling or the like. And the straight tube fluorescent lamp 900 can be handled safely.

(Embodiment 2)
As shown in FIG. 2, the straight tube fluorescent lamp 900 according to the present embodiment is different from the first embodiment, and the pair of connection pins 350 can be bent as shown by arrows.

  Of the pair of connection pins 350 on the left side of FIG. 2, the lower connection pin is in a state before being bent, and the upper connection pin is in a state after being bent.

  When the straight tube fluorescent lamp 900 is packaged in a packaging sack, the pair of connection pins 350 are bent. As a result, the packaging sack can be shortened only in the bent portion of the connection pin 350, so that the packaging sack can be simplified and packaging can be performed easily.

  In addition, the straight tube fluorescent lamp 900 according to the present embodiment can be handled safely by bending the connection pin 350 before being attached to an adapter provided on a ceiling or the like.

(Embodiment 3)
The straight tube fluorescent lamp 900 shown in the third embodiment describes the straight tube fluorescent lamp 900 according to the first embodiment in more detail.

  As shown in FIG. 3, a pair of filament electrodes 120 are sealed at both ends of the straight tube glass tube valve 100, respectively.

  The filament electrode 120 includes an electrode part 121 and a filament part 122 formed at the tip of the electrode part 121. The electrode part 121 energizes the filament part 122.

  The straight tube type glass tube bulb 100 is made of soft glass that transmits visible light.

  The filament portion 122 is coated with an electron-emitting material made of BaO, SrO, CaO, etc., generates heat when energized, and emits thermoelectrons for generating a discharge in the straight glass tube bulb 100.

  A phosphor film 130 is deposited on the inner surface of the straight glass tube bulb 100. The phosphor film 130 contains a red light-emitting phosphor, a green light-emitting phosphor, and a blue light-emitting phosphor.

The red light-emitting phosphor is made of, for example, Y ₂ O ₃ : Eu, the green light-emitting phosphor is made of, for example, LaPO ₄ : Ce, Tb, and the blue light-emitting phosphor is made of, for example, BaMg ₂ Al ₁₆ O ₂₇ : Eu.

  A discharge gas 140 is sealed inside the straight glass tube bulb 100. The discharge gas 140 is composed of a predetermined amount of mercury vapor and a rare gas.

  The rare gas is used to adjust the pressure inside the straight glass tube valve 100 to a predetermined reduced pressure atmosphere, and is a mixed gas of argon and neon. The ratio of argon to neon is, for example, 5% by weight for Ar and 95% by weight for Ne. The mercury vapor is for obtaining ultraviolet rays that excite the phosphor film 130.

  The base 200 is a bottomed cylindrical body made of, for example, aluminum. The base 200 has a pair of screw holes 210 having female screw grooves on its inner peripheral surface.

  The pair of connection pins 310 is made of brass, for example. The pair of connection pins 310 has a male screw groove on the outer peripheral surface of the tip.

  Then, as shown by the arrows in FIG. 3, the pair of connection pins 310 can be attached and fixed to the base 200 by screwing the tip portions of the pair of connection pins 310 into the screw holes 210.

  The connection pin 310 attached and fixed to the base 200 is electrically connected to the electrode part 121.

  On the other hand, as shown by the arrows in FIG. 3, the pair of connection pins 310 can be detached from the base 200 by being removed from the screw holes 210.

  In this manner, the pair of connection pins 310 can be attached to and detached from the base 200 by moving the screw back and forth.

  According to this embodiment, the connection pin 310 can be firmly attached and fixed to the base 200 by screwing the tip of the connection pin 310 into the screw hole 210.

(Embodiment 4)
The straight tube fluorescent lamp 900 shown in the fourth embodiment describes the straight tube fluorescent lamp 900 according to the first embodiment in more detail from a point of view different from that of the third embodiment.

  As shown in FIG. 4, the base 200 has an insertion hole 220 into which a pair of connection pins 320 are inserted.

  The first permanent magnet piece 221 is disposed adjacent to the insertion hole 220 with one magnetic pole portion 222 (for example, S pole) facing the bottom of the insertion hole 220.

  The pair of connection pins 320 has the other magnetic pole part 322 (for example, N pole) having the opposite polarity to the one magnetic pole part of the second permanent magnet piece 321 at the tip part.

  As shown by the arrows in FIG. 4, the other magnetic pole portion 322 of the second permanent magnet piece 321 and one of the first permanent magnet pieces 221 are inserted by inserting the tip portions of the pair of connection pins 320 into the insertion holes 220. The connection pin 320 is attached and fixed to the base 200 by the magnetic force with the magnetic pole portion 222.

  The connection pin 320 attached and fixed to the base 200 is electrically connected to the electrode part 121.

  On the other hand, as shown by the arrows in FIG. 4, the pair of connection pins 320 can be detached from the base 200 by being removed from the insertion hole 220.

  In this way, the pair of connection pins 320 can be attached to and detached from the base 200 by magnetic force.

  According to the present embodiment, the connection pin 320 can be firmly attached and fixed to the base 200 by magnetically fixing the connection pin 320 to the insertion hole 220. Further, by adjusting the magnetic force of the permanent magnet, it is possible to adjust the labor when removing the connecting pin 320 that is mounted and fixed from the insertion hole 220.

(Embodiment 5)
The straight tube fluorescent lamp 900 shown in the fifth embodiment describes the straight tube fluorescent lamp 900 according to the first embodiment in more detail from a point of view different from the third and fourth embodiments.

  As shown in FIG. 5, the base 200 is formed with an insertion hole 230 into which the pair of connection pins 330 are inserted.

  As indicated by an arrow in FIG. 5, by inserting the distal ends of the pair of connection pins 330 into the insertion holes 230, the friction force between the distal ends of the connection pins 330 and the inner peripheral surface of the insertion holes 230 is The connection pin 330 is attached and fixed to the base 200.

  The connection pin 330 attached and fixed to the base 200 is electrically connected to the electrode part 121.

  On the other hand, as shown by the arrows in FIG. 5, the pair of connection pins 330 can be detached from the base 200 by removing them from the insertion holes 230.

  According to this embodiment, the connection pin 330 can be detachably fixed to the base 200 with a simple configuration using frictional force.

(Embodiment 6)
The straight tube fluorescent lamp 900 shown in the sixth embodiment describes the straight tube fluorescent lamp 900 according to the second embodiment in more detail.

  The pair of connection pins 360 are disposed at the bottom of the base 200 and are electrically connected to the electrode part 121.

  As shown in FIG. 6, the connection pin 360 has a root portion 361 made of a thin metal material, and the root portion 361 can be bent.

  Here, the root portion 361 of the connection pin 360 can be, for example, a portion from the connection portion of the connection pin 360 to the base 200 to 30% of the total length of the connection pin 360.

  According to the present embodiment, the connection pin 360 can be bent with respect to the base 200 with a simple configuration by forming the base portion of the connection pin 360 with a thin metal material.

(Embodiment 7)
The straight tube fluorescent lamp 900 shown in the seventh embodiment describes the straight tube fluorescent lamp 900 according to the second embodiment in more detail from a point of view different from that of the sixth embodiment.

  As shown in FIG. 7, the pair of connection pins 370 has a root portion 371 formed of a hinge portion, and the root portion 371 can be bent.

  Since the hinge pin forming the hinge structure of the hinge portion is made of metal, the connection pin 370 is electrically connected to the electrode portion 121.

  According to the present embodiment, the connection pin 370 can be bent with respect to the base 200 by reducing the possibility that the root portion of the connection pin 370 is damaged due to metal fatigue caused by bending.

(Other embodiments)
In the fourth embodiment described above, the second permanent magnet piece 321 is disposed at the tip of the connection pin 320. However, the present invention is not limited to such an embodiment. It is also possible to configure the connection pin 320 itself with a permanent magnet.

It is a figure explaining the straight tube | pipe type fluorescent lamp which concerns on Embodiment 1, and is a figure explaining the state in which a connection pin is removable with respect to a nozzle | cap | die. It is a figure explaining the straight tube | pipe type fluorescent lamp which concerns on Embodiment 2, and is a figure explaining the state in which a connection pin is bendable. It is a figure explaining the straight tube | pipe type fluorescent lamp which concerns on Embodiment 3, and is a figure explaining the state in which a connection pin can be screwed with respect to a nozzle | cap | die. It is a figure explaining the straight tube | pipe type fluorescent lamp which concerns on Embodiment 4, and is a figure explaining the state in which a connection pin can fix magnetic force with respect to a nozzle | cap | die. It is a figure explaining the straight tube | pipe type fluorescent lamp which concerns on Embodiment 5, and is a figure explaining the state which can fix a connection pin with a frictional force with respect to a nozzle | cap | die. It is a figure explaining the straight tube | pipe type fluorescent lamp which concerns on Embodiment 6, and is a figure explaining the state which can bend the connection pin formed in the metal material whose base part is thin. It is a figure explaining the straight tube | pipe type fluorescent lamp which concerns on Embodiment 7, and is a figure explaining the state in which the connection pin in which the root part was formed with the hinge part can be bend | folded.

Explanation of symbols

100 Straight tube type glass tube bulb 120 Filament electrode 121 Electrode portion 122 Filament portion 130 Phosphor film 140 Discharge gas 200 Base 210 Screw hole 220 Insertion hole 221 First permanent magnet piece 230 Insertion hole 300 Connection pin 310 Connection pin 320 Connection Pin 321 Second permanent magnet piece 330 Connection pin 350 Connection pin 320 Lower support portion 330 Upper support portion 360 Connection pin 361 Root portion 370 Connection pin 371 Root portion 900 Straight tube fluorescent lamp

Claims (7)

A straight glass tube bulb comprising a pair of filament electrodes sealed at both ends and a phosphor film deposited on the inner surface, and at least mercury and a rare gas sealed inside,
A base mounted on each end of the straight tube glass tube bulb,
A pair of connection pins are detachable from the base,
A straight tube fluorescent lamp characterized by that. A straight glass tube bulb comprising a pair of filament electrodes sealed at both ends and a phosphor film deposited on the inner surface, and at least mercury and a rare gas sealed inside,
A base having a pair of connection pins attached to each end of the straight tube glass tube bulb,
The pair of connecting pins can be bent;
A straight tube fluorescent lamp characterized by that. The base has a pair of screw holes having a female screw groove on the inner peripheral surface,
The pair of connection pins have a male screw groove on the outer peripheral surface of the tip portion,
The pair of connection pins are attached and fixed to the base by screwing the tip ends of the pair of connection pins into the screw holes, while the pair of connection pins are removed from the pair of screw holes and removed from the base. By unloading
The pair of connection pins can be detachably fixed to the base by moving the screw forward and backward.
2. The straight tube fluorescent lamp according to claim 1, wherein The base has a pair of insertion holes having one magnetic pole part of the first permanent magnet piece at a position adjacent to the hole bottom part,
The pair of connecting pins have the other magnetic pole part having the opposite polarity to the one magnetic pole part of the second permanent magnet piece at the tip thereof.
The tip portions of the pair of connection pins are inserted into the pair of insertion holes, and the magnetic force between the other magnetic pole portion of the second permanent magnet piece and one magnetic pole portion of the first permanent magnet piece, While mounting and fixing the connection pins to the base, by removing the pair of connection pins from the pair of insertion holes and detaching from the base,
The pair of connection pins can be detachably fixed to the base by magnetic force.
2. The straight tube fluorescent lamp according to claim 1, wherein The base has a pair of insertion holes into which the pair of connection pins are inserted,
The pair of connection pins are inserted into the pair of insertion holes, and the connection pins are attached and fixed to the base by frictional force between the tip and the inner peripheral surface of the insertion hole. By removing the connection pins from the pair of insertion holes and removing from the base,
The pair of connection pins can be detachably fixed to the base by frictional force.
2. The straight tube fluorescent lamp according to claim 1, wherein The connection pin is formed of a thin metal material at a root portion, and the root portion can be bent.
3. The straight tube fluorescent lamp according to claim 2, wherein The connection pin has a root portion formed of a hinge portion, and the root portion can be bent.
3. The straight tube fluorescent lamp according to claim 2, wherein

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