JPS6338524Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of the Invention] The present invention relates to a fluorescent lamp device with a separate lighting device.

[Technical background of the invention and its problems]

Fluorescent lamps can be used with lower power consumption than general incandescent lamps and have high lighting efficiency, so the applicant has recently developed a fluorescent lamp that can be used by directly screwing into an existing incandescent lamp socket. The device has been put into practical use and is becoming widely used as a power-saving light source. This product consists of an envelope that resembles a White Ball (product name)-shaped incandescent light bulb by placing a globe on a cover with a cap at one end, and a saddle is placed inside the envelope. It has a structure that integrally incorporates a curved tube-shaped fluorescent lamp and a lighting tube and ballast for starting and lighting the curved tube-shaped fluorescent lamp.

By the way, the ballast is relatively heavy and has a long lifespan compared to a fluorescent lamp or lighting tube, so as mentioned above, the ballast and the curved fluorescent lamp are placed inside the envelope If it is integrated into a fluorescent lamp, the weight of the entire device increases, and even if only the fluorescent lamp reaches the end of its life, the entire device must be replaced with a new one. As a countermeasure against this, only the ballast is removed from the envelope and housed in an adapter that is separate from the envelope, and this adapter is equipped with a base that can be screwed into the socket for the incandescent lamp, and the ballast is attached to the incandescent lamp socket. Attempts have been made to provide a socket into which the cap of the device is screwed, and to screw the fluorescent lamp device into the socket via an adapter. This has the advantage that not only the weight of the entire device can be reduced, but also the stabilizer can be used repeatedly and is economically advantageous.

This also applies to the case where an electronic lighting device such as a transistor inverter is used instead of a ballast.

In this case, if the cap of the fluorescent lamp device and the cap of the adapter have the same shape and dimensions, the fluorescent lamp device can be screwed directly into the incandescent lamp socket without using an adapter, so there is no possibility of accidental insertion. If this fluorescent lamp device is screwed into the light bulb socket, the power supply voltage will be directly applied to the fluorescent lamp, which will immediately burn out the fluorescent lamp, which is not desirable from a safety standpoint. As a solution to this problem, it is possible to use caps with different shapes, such as one cap being screw-type and the other cap being swan-shaped, but this would result in different mounting methods for the adapter and fluorescent lamp device. It becomes inconvenient to handle because it gets hot.

[Purpose of invention]

The present invention was developed based on these circumstances, and it is possible to prevent misuse due to the separate lighting device, and it is easy to handle because the mounting method for the envelope and adapter is the same. The purpose of this invention is to provide a fluorescent lamp device that can

[Summary of the idea]

That is, in order to achieve the above purpose, the present invention
The cap of the envelope housing the fluorescent lamp and the cap of the adapter are of the same shape, and the cap of the envelope is smaller than the cap of the adapter. It is characterized by the fact that it cannot be connected to the side socket.

[Example of idea]

The present invention will be explained below based on an embodiment shown in the drawings.

In the figure, reference numeral 1 denotes a light bulb fixture for an incandescent light bulb, which has a hollow cylindrical shade 2 with an open bottom surface. A socket 3 made of electrically insulating material such as porcelain is attached to the center of the upper surface of the shade 2.
A mounting recess 4 is formed in the lower surface of the holder. A receiving fitting 5 is installed in the mounting recess 4 into which a screw-type fitting such as an E26 type fitting can be screwed. This receiving fitting 5 is a screw-type fitting main body 6.
a and a terminal fitting 6b, and these fitting bodies 6a
And the energizing terminal 6b is connected to the power source 7.

A fluorescent lamp unit 8 is screwed into the socket 3 of such a light bulb fixture 1 via an adapter 9. First, the structure of the fluorescent lamp unit 8 will be described in detail.The chassis 10 is made of a synthetic resin material. The chassis 10 has a cylindrical part 11 at one end,
A male threaded portion 12 for attaching a cap is provided on the outer circumferential surface of the cylindrical portion 11, and a pair of mounting grooves 13, 13 are provided facing each other along the axial direction. One end of these mounting grooves 13, 13 is opened at the tip edge of the cylindrical portion 11. Further, a pair of support arms 1 are provided at the proximal opening edge of the cylindrical portion 11.
4a and 14b are provided protrudingly facing each other. These support arms 14a, 14b are led out along the axial direction of the cylindrical part 11, and support parts 15a, 15b are provided at the respective lead-out ends. Such a chassis 10 has a cover 16 made of synthetic resin.
is installed. This cover 16 is formed into a substantially bowl shape with a circumferential surface shaped like a paraboloid of revolution.
An insertion hole 17 through which the cylindrical portion 11 can be inserted is provided at the top of the cover 16, and a pair of protrusions 18, 18 are provided on the inner circumferential surface of the insertion hole 17, facing each other. has been done. The cylindrical portion 11 is inserted into the insertion hole 17 from the opening 19 side of the cover 16, and due to this insertion, the protrusion 18,
18 is fitted into the mounting grooves 13, 13. A male threaded portion 12 of the cylindrical portion 11 is led out from this insertion hole 17, and a screw-type cap 20, such as an E17 type for incandescent light bulb, is screwed into this male threaded portion 12. The cap 20 has the protrusions 18, 18 between its opening edge and the end of the mounting grooves 13, 13.
This clamping pressure connects the chassis 10 and the cover 16. Therefore, the cap 20 is connected to one end of the cover 16 by this connection. The opening 19 of the cover 16 is covered with a substantially spherical globe 21 . glove 21
The globe 21 is made of a translucent synthetic resin material that is milky white or colorless and transparent, and the globe 21 is covered with a spherical envelope 22. The envelope 22 of this embodiment has an outer diameter of 110φ, and its appearance resembles a White Ball (trade name) type incandescent light bulb. Note that the inside of this envelope 22 forms a sealed space that is separated from the outside.

A curved tube-shaped fluorescent lamp 23 is housed within such an envelope 22 . Curved tube fluorescent lamp 2
3 is a straight glass bulb with both ends 24, 2
4 into a substantially U-shape to form a central curved portion 25, and the space between this central curved portion 25 and both end portions 24, 24 is approximately perpendicular to the plane containing the U-shape. A pair of both end curved portions 26, 26 are formed by bending the center curved portion 26 in a substantially U-shape in the direction, and by bending these two times, the both end portions 24, 24 and the central curved portion 25 are adjacent to each other. It is roughly shaped like a saddle and is positioned in the same direction. A filament 2 is attached to both ends 24, 24 of this curved fluorescent lamp 23.
7 and 28 are sealed. The curved tube-shaped fluorescent lamp 23 is fixed with both end portions 24, 24 and a central curved portion 25 facing toward the cover 16. Although this fixing structure is not shown in detail, in this embodiment, the central curved portion 25 is The component part 25 is fixed by being fitted between the stays 29 provided on one of the supporting parts 15a. Further, a lighting tube 30 and a capacitor 31 as a starting device are attached to the other support portion 15b. The lighting tube 30 has one lead wire 32a connected to the filaments 27 and 28,
33a, and the capacitor 31 is connected in parallel to the lighting tube 30. The other lead wire 32b connected to the filament 27 is connected to the eyelet terminal 34 of the cap 20, and the other lead wire 33b connected to the other filament 28 is connected to the opening edge of the cap 20. Therefore, the cap 20 has two terminals.

Next, the structure of the adapter 9 will be explained.
That is, the main body 35 is made of, for example, a heat-resistant synthetic resin material. This main body 3
5 has a cylindrical part 36 at one end, and the outer peripheral surface of this cylindrical part 36 is provided with a male threaded part 37 for attaching a cap, and a pair of mounting grooves along the axial direction. 38, 38 are provided facing each other. One end of these mounting grooves 38, 38 is opened at the tip edge of the cylindrical portion 36. Furthermore, a pair of arms 39 are provided at the proximal edge of the cylindrical portion 36.
a and 39b are protrudingly provided to face each other. These arms 39a, 39b are led out in a direction that moves away from each other, and a support plate 40a, a
40b are integrally provided in parallel with each other. A chiyoke coil type ballast 41 serving as a lighting device is disposed between these support plates 40a and 40b. The stabilizer 41 has a substantially rectangular box shape, and its mutually opposing sides are formed by support plates 40a and 40.
It is sandwiched by b. and support plate 40
A locking pawl 42 that locks into a corner of one end face of the stabilizer 41 is provided at the tip end edge of each of the stabilizer 41.

An outer cylinder member 43 made of synthetic resin is attached to such a main body 35. The outer cylinder member 43 has a hollow cylinder shape with one end narrowed and the other end open. An insertion hole 44 into which the cylindrical portion 36 can be inserted is formed at one end of the outer cylinder member 43, and a pair of holes which can be fitted into the mounting grooves 38, 38 are formed on the inner peripheral surface of the insertion hole 44. protrusions 45, 45
is provided. The cylindrical portion 36 is inserted into the insertion hole 44 from the other end opening 46 side of the outer cylindrical member 43, and the projections 45, 45 are inserted into the mounting groove 3.
8,38. A male threaded portion 37 of the cylindrical portion 36 is led out from this insertion hole 44, and an E26 incandescent light bulb, for example, which can be screwed into the receiving fitting 5 of the socket 3, is inserted into this male threaded portion 37.
A shaped cap 47 is screwed on. Therefore, although the cap 47 and the cap 20 on the fluorescent lamp unit 8 side have the same screw-in shape, they have different dimensions, with the cap 20 being smaller. The cap 47 has an opening edge and a mounting groove 3.
The protrusions 45, 45 are clamped between the ends of the protrusions 8, 38, and the clamping pressure connects the main body 35 and the outer cylinder member 43. As a result of this connection, the base 47 is connected to one end of the outer cylinder member 43, and the stabilizer 41 is housed within the outer cylinder member 43. Further, in the above-mentioned coupled state, the inner circumferential surface of the outer cylinder member 43 comes into contact with the outer surfaces of the arms 39a, 39b and presses these arms 39a, 39b in a direction toward each other. Therefore, the support plates 40a and 40b are forcibly urged toward each other and brought into close contact with the stabilizer 41.

On the other hand, an inner cylinder member 48 made of synthetic resin is inserted into the outer cylinder member 43 so as to be slidable in the axial direction. The inner cylinder member 48 is open at one end, and
It has a bottomed cylindrical shape with the other end closed, and the opening 4
It is inserted with the 9 side facing the base 47 side. A protrusion 50 that protrudes axially outward is provided at the center of the bottom surface of the inner cylinder member 48.
A mounting recess 51 is provided in the protruding end surface of the protrusion 50 . A receiving fitting 52 into which the base 20 of the fluorescent lamp unit 8 is screwed is installed in the mounting recess 51.
3b. The fitting main body 53a is connected to the opening edge of the cap 47, and the current-carrying terminal 53b is connected to the eyelet terminal 54 of the cap 47 via the ballast 41.

On the other hand, a pair of bulging portions 56, 56 are provided along the axial direction on the inner surface of the peripheral wall portion 55 of the inner cylindrical member 48, which is in contact with the inner surface of the outer cylindrical member 43. are facing each other. Hollow parts 57, 57 are formed in the bulging parts 56, 56 along the longitudinal direction thereof, and one end of the hollow parts 57, 57 is opened at the end surface of the inner cylinder member 48 on the side of the opening 49. Further, the peripheral wall portion 55 has the above-mentioned bulging portions 56, 56.
Slit-shaped openings 58, 58 are formed along the axial direction of the inner cylinder member 48 at positions corresponding to the inner cylinder member 48, and these openings 58, 58 penetrate the inside of the peripheral wall portion 55 in the radial direction. Further, on the side surface of the outer cylinder member 43, there is a
A pair of through holes 59, 59 are opened, and these through holes 5
9 and 59 are aligned oppositely with the openings 58 and 58. Screw members 60, 60 are inserted into the through holes 59, 59, and the screw members 60, 60 are inserted continuously into the openings 58, 58, and are inserted into the hollow parts 57, 57. It is screwed into nuts 61, 61 housed movably along the longitudinal direction. Therefore, when the screw members 60, 60 are tightened, the outer cylinder member 43 and the inner cylinder member 48 are tightened together in the radial direction, preventing them from sliding in the axial direction, and conversely, the screw member 60 ,6
0, the inner cylindrical member 48 can be slid within the length range of the openings 58, 58, and the position of the receiving metal fitting 52 is adjusted along the axial direction of the outer cylindrical member 43. It is possible to change it in stages.

According to this configuration, when the fluorescent lamp unit 8 is attached to the light bulb fixture 1 and used, first screw the base 47 of the adapter 9 into the socket 3 of the light bulb fixture 1, and then screw the base 47 of the adapter 9 into the socket 3 of the light bulb fixture 1. Screw the base 20 of the fluorescent lamp unit 8 into the metal fitting 52, or attach the base 20 of the fluorescent lamp unit 8 to the receiving metal fitting 52 of the adapter 9 in advance.
After integrating the adapter 9 and the fluorescent lamp unit 8 by screwing it into the base 4 of the adapter 9,
7 into the socket 3 of the light bulb fixture 1. By this screwing, the curved tube type fluorescent lamp 23, the ballast 41, and the power source 7 are connected in series to constitute a choke coil type lighting circuit as shown in FIG. Lighting becomes possible.

In this case, the base 47 on the adapter 9 side is of the E26 type, which is often used in general incandescent light bulbs, but the base 20 on the fluorescent lamp unit 8 side is of the E17 type, which is smaller than the above E26 type. Even if an attempt is made to screw this fluorescent lamp unit 8 into the light bulb fixture 1 as it is, it will not be possible to screw it in. Therefore, it is possible to prevent misuse, such as connecting the curved tube fluorescent lamp 23 directly to the power source 7, and it is safe.

In addition, the above-mentioned caps 20 and 47 have different dimensions but are both threaded in the same shape, so the adapter 9
The method of attaching the fluorescent lamp units 8 to each other is standardized, making handling easier.

Moreover, since the base 20 on the side of the fluorescent lamp unit 8 is small, the cover 16 is particularly attached to the globe 21.
In the case where the light from the curved fluorescent lamp 23 is also emitted from the cover 16 side, the surface area of the cover 16, that is, the light emitting area increases, and the light is emitted by the base 20. Since the proportion of light that is blocked is reduced, light can be guided over a wide range. In addition, the receiving fitting 52 portion of the adapter 9 can also be made smaller, which has the advantage of making the adapter 9 more compact.

Furthermore, since the torque applied to the adapter 9 side when screwing in the fluorescent lamp unit 8 is reduced, no unreasonable force is applied to the base 47 portion of the adapter 9. That is, since the base 47 of the adapter 9 is larger than the base 20, the contact area with the cylindrical portion 36 is correspondingly increased, and the mounting strength is also greater than that of the base 20 of the fluorescent lamp unit 8. Therefore, even if the fluorescent lamp unit 8 is screwed into the adapter 9 after screwing the adapter 9 into the light bulb fixture 1, there is no risk that the cap 47 will be twisted by the torque during screwing, resulting in a so-called loose base. , it is possible to reliably prevent undesired damage to the adapter 9 side.

In the above embodiment, the cap is of a screw type, but it goes without saying that a swan type or a sealing type can also be used.

In addition, in the above embodiment, the envelope was light bulb-shaped, but
For example, it may have a cylindrical shape, and therefore, the fluorescent lamp is not limited to a saddle shape, but may also be U-shaped, annular, or straight tube shaped.

In addition, lighting devices are not limited to chiyoke type ballasts.
It may also be an electronic lighting device using a transistor inverter.

Furthermore, the structure of the adapter is not limited to the above embodiment, and the point is that it has a built-in lighting device such as a ballast, and has a cap connected to a power supply side socket at one end, and an enclosure at the other end. Any structure may be used as long as it has a receiving fitting connected to the cap.

[Effect of idea]

In the present invention described in detail above, the fluorescent lamp and the starting device are housed in an envelope equipped with a base, and the lighting device for lighting the fluorescent lamp is provided separately from the envelope, and furthermore, one end The adapter is housed in an adapter that has a cap connected to the power supply side socket at one end and a receiving metal fitting connected to the cap of the envelope at the other end, and the cap of the envelope and the cap of the adapter are They are characterized in that they have the same shape and that the cap of the envelope is smaller than the cap of the adapter. According to this, even if you try to connect the cap of the envelope to the power supply side socket,
Since the dimensions of the fluorescent lamp and the socket are different, they cannot be connected. Therefore, there is no possibility that the fluorescent lamp will be directly connected to the power source without going through the lighting device, and misuse can be prevented. Moreover, since each of the caps mentioned above has the same shape although the dimensions are different, the method of attaching the adapter and the envelope is the same, making handling easier. This has the effect of preventing breakage before it happens, without applying excessive force to it.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is an overall sectional view, Fig. 2 is a sectional view of the adapter and the envelope connected to each other, and Fig. 3 is taken along the line - in Fig. 1. The sectional view and FIG. 4 are lighting circuit diagrams. 3... Power supply side socket, 5, 52... Receptacle, 7... Power supply, 9... Adapter, 16... Cover, 20, 47... Base, 21... Glove, 2
2... Envelope, 23... Fluorescent lamp (curved fluorescent lamp), 30... Starting device (lighting tube), 41
...Lighting device (ballast).

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A cover with a base is covered with a glove to form an envelope, a fluorescent lamp and a starting device are housed in the envelope, and the fluorescent lamp and the starter are housed in the envelope. The lighting device for lighting the lamp is housed in an adapter separate from the above-mentioned envelope, and this adapter has a base at one end that is connected to a receiving metal fitting provided in the power supply side socket, and the other end is connected to a receiving metal fitting provided on the power supply side socket. By having a receiving metal fitting to which the cap of the above-mentioned envelope is connected to the part, and connecting the cap of this adapter to the receiving metal fitting of the power supply side socket, and connecting the cap of the envelope to the receiving metal fitting of this adapter. In a fluorescent lamp device in which the fluorescent lamp is connected to a power source via a lighting device, the cap of the envelope and the cap of the adapter have the same shape,
A fluorescent lamp device characterized in that the base of the envelope is smaller than the base of the adapter. (2) The fluorescent lamp device according to claim 1, wherein the cap of the envelope and the cap of the adapter are screw-type (E-shaped).