JPH087639A - Socket adapter for cantilever installation lamp - Google Patents

Abstract

PURPOSE:To further improve a temperature decreasing effect of lighting parts, and reduce an axial directional length of a screwed base part by arranging a lighting part housing part in an overhang condition on the outer periphery of a cantilever installation lamp close to a socket part. CONSTITUTION:This socket adapter for a cantilever installation lamp is provided with a screw base part 1 to be screwed in and connected to a lamp socket, a socket part 2 which is connected to this screw base part 1 and in which a base of the cantilever installation lamp 5 is installed and a lighting part housing part 3 which overhangs to the outer periphery of the cantilever installation lamp 5 by securing a space 12 between it and the cantilever installation lamp 5 close to the outer periphery of the socket part! 2 and inside which lighting parts 8 are housed. It is desirable that among the lighting parts 8, a part 8a high in a heat resistant temperature is arranged in a position close to the cantilever installation lamp 5 and a part 8b low in the heat resistant temperature is arranged in a position more distant from the cantilever installation lamp 5 than the part 8a high in the heat resistant temperature.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compact cantilever mounting lamp socket adapter for mounting a compact fluorescent lamp in a screw-in lamp lamp socket.

[0002]

2. Description of the Related Art A conventional example is shown in FIGS. That is, this cantilever mounting lamp socket adapter has a lighting component 53 that constitutes a lighting device between a screw-in base portion 50 of an adapter body 56 and a socket portion 52 of a cantilever mounting lamp 51 such as a compact fluorescent lamp. The lamp can be replaced.

As described above, since the cantilever mounted lamp 51 is used by being replaced, the lighting component 53 used in the stored lighting device is required to have a service life much longer than the life of the lamp. Therefore, in order to reduce the influence of heat from the cantilever mounting lamp 51 which is a heat source and to secure long-term reliability, the mounting surface of the printed circuit board 54 on which the electronic components constituting the lighting component 53 are mounted is mounted on the cantilever mounting lamp. The other side is facing 51. 55 is an exhaust hole.

A double-sided printed circuit board is used to mount the lighting component 53, and a component having a high heat resistant temperature is arranged on the surface of the printed circuit board 54 on the cantilever mounting lamp 51 side, and the surface on the opposite side thereof has the heat resistant temperature. Some have low-cost components.

[0005]

However, although this cantilever mounting lamp socket adapter has the mounting surface of the component having a particularly low heat resistant temperature facing the side opposite to the cantilever mounting lamp 51, it is actually used. In the above, since it is located right above the cantilever mounting lamp 51, since the lighting component 53 is arranged in the passage of the heat flowing through the exhaust hole 55, the temperature reducing effect is weak. Further, since the screw-in base part 50, the lighting part 53 and the socket part 52 are arranged in the axial direction, the height of the adapter is high and the total length when the cantilever mounting lamp 51 is mounted is long.

Therefore, an object of the present invention is to further improve the effect of reducing the temperature of the lighting part and to reduce the axial length of the screw-in base 50 so that the cantilever mounting lamp socket can be reduced. It is to provide an adapter.

[0007]

A socket adapter for a cantilever mounting lamp according to a first aspect of the present invention mounts a cantilever mounting lamp base which is connected to the lamp socket by screwing and connecting the lamp socket to the lamp socket. A lighting part housing part in which a lighting part is housed inside the socket part and overhanging the space between the outer periphery of the socket part and the cantilever mounting lamp to project to the outer circumference of the cantilever mounting lamp. is there.

According to a second aspect of the present invention, in the socket adapter for a cantilever mounting lamp according to the first aspect, among the lighting components, a component having a high heat resistant temperature is arranged at a position close to the cantilever mounting lamp, and a component having a low heat resistant temperature is arranged. Is disposed at a position farther from the cantilever mounting lamp than the component having a high heat resistant temperature. The socket adapter for a cantilever mounting lamp according to claim 3,
In Claim 1, the ventilation hole was formed between the said lighting component storage part and the said socket part.

According to a fourth aspect of the present invention, there is provided a socket adapter for a cantilever mounting lamp according to the first, second or third aspects.
The lighting component storage portion has an umbrella shape.

[0010]

According to the socket adapter for a cantilever mounting lamp of claim 1, the cantilever mounting lamp is mounted on the socket portion, and the screw-in base portion is mounted on the incandescent lamp socket, whereby the lighting device is constituted by the lighting component. Can operate to turn on the cantilever mounting lamp. In this case, since the lighting component storage portion is provided so as to project from the socket portion to the outer periphery of the cantilever mounting lamp, the lighting component is separated from the socket portion,
Since it is possible to keep away from a high temperature portion such as a position directly above the lamp arc tube, it is possible to avoid the thermal influence of the lighting component, and it is possible to use a lighting component having a low heat resistant temperature. Even when the screw-in base portion and the socket portion are coaxially provided, since the lighting components are not aligned in the axial direction, it is possible to shorten the total length in the state where the cantilever mounting lamp is mounted.

According to the socket adapter for a cantilever mounting lamp of a second aspect, in the first aspect, among the lighting components, a component having a high heat resistant temperature is arranged at a position close to the cantilever mounting lamp, and Since the low component is arranged at a position farther from the cantilever mounting lamp than the high heat resistant component, the lighting component can be easily arranged in addition to the effect of the first aspect.

According to a third aspect of the socket adapter for a cantilevered lamp of the present invention, the vent hole is formed between the lighting component storage section and the socket section in the first or second aspect. In addition to the effect of item 2, since the lamp heat generated from the cantilever mounted lamp escapes through the ventilation hole, heat is not accumulated and the cooling effect is improved.

According to the socket adapter for a cantilever mounting lamp of claim 4, in claim 1, claim 2 or claim 3, the lighting component storage portion has an umbrella shape. In addition to the function of claim 2 or claim 3, since the peripheral surface of the lighting component storage portion facing the cantilever mounting lamp can also be used as a reflector, it is possible to increase the illuminance directly under the lamp and improve the cooling effect of the light heat lighting component. can do.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. That is, this cantilever mounting lamp socket adapter includes a screw-in base portion 1, a socket portion 2,
The lighting component storage section 3 is provided. The screw-in base part 1 is connected to a lamp socket (not shown) by screwing, and an incandescent lamp socket can be used. In the embodiment, the screw-in base portion 1 is provided on the top of the conical adapter body 4. FIG. 2 shows a state in which the upper part 4a and the bottom part 4b of the adapter body 4 are separated.

The socket portion 2 is connected to the screw-in base portion 1 to mount the base 6 of the cantilever mounting lamp 5. The socket part 2 of the embodiment is provided on the bottom surface of the adapter body 4, and the screw-in base part 1 and the socket part 2 are arranged coaxially. As the cantilever mounting lamp 5 of the embodiment, a known fluorescent lamp in which four arc tubes are erected in parallel is used, and its lamp base 6 is used.
The lamp pin 11 is attached to the bracket 7 that receives the lamp pin 11 of the socket 2.

The lighting component storage portion 3 has a space 12 between the outer periphery of the socket portion 2 and the cantilever mounting lamp 5 and projects to the outer periphery of the cantilever mounting lamp 5 to accommodate the lighting component 8 therein. There is. The lighting component storage portion 3 of the embodiment has a substantially donut shape and is connected to the lower end peripheral portion of the conical adapter body 4. Each of the lighting components 8 is mounted on a printed circuit board 9 having a hollow disk shape, and the printed circuit board 9 is stored in the lighting component storage portion 3. In particular, among the lighting components 8 on the printed circuit board 9, the component 8a having a high heat resistant temperature is arranged at a position close to the cantilever mounting lamp 5, and the component 8 having a low heat resistant temperature
b is arranged at a position farther from the cantilever mounting lamp 5 than the component 8a having a high heat resistant temperature.

Further, a ventilation hole 10 is formed between the socket portion 2 of the adapter body 1 and the lighting component storage portion 3 so as to vertically penetrate therethrough and generate an ascending airflow P. According to this embodiment,
By mounting the cantilever mounting lamp 5 on the socket part 2 and mounting the screw-in base part 1 on the incandescent lamp socket (not shown), the lighting device constituted by the lighting component 8 operates to operate the cantilever mounting lamp. 5 can be turned on.

In this case, since the lighting component housing portion 3 is provided so as to project from the socket portion 2 to the outer periphery of the cantilever mounting lamp 5, the lighting component 8 is separated from the socket portion 2 and the temperature of the position directly above the lamp arc tube or the like is controlled. Since it is possible to keep away from the high part, it is possible to avoid the heat influence of the lighting component 8.
Further, it becomes possible to use the lighting component 8 having a low heat resistant temperature.

Further, the screw-in base portion 1 and the socket portion 2
Even when the lamps are coaxially provided, since the lighting components 8 are not aligned in the axial direction, the total length of the cantilever mounting lamp 5 mounted can be shortened. Further, since the component 8a having a high heat resistant temperature is arranged in a position close to the cantilever mounting lamp 5 and the component 8b having a low heat resistant temperature is arranged in a position farther from the cantilever mounting lamp 5 than the component 8a having a high heat resistant temperature, the lighting component 8 Will be easier to place.

Further, since the ventilation hole 10 is formed between the lighting component housing portion 3 and the socket portion 2, the lamp heat generated from the cantilever mounting lamp 5 escapes through the ventilation hole 10 so that no heat is accumulated and a cooling effect is obtained. Is improved. The second embodiment of the present invention is shown in FIGS. That is, the lighting component storage portion 3 has a conical umbrella shape, the inner peripheral side thereof is connected to the adapter body 4, and the surface of the inner peripheral wall 13 is formed as a reflecting surface. The printed circuit board 9 is formed of a plurality of small flat plates, the lighting components 8 are mounted on each of them, and the printed circuit boards 9 are connected to each other by lead wires 12. These printed circuit boards 9 are attached to the inner surface of the inner peripheral wall 13 of the lighting component storage portion 3 on the cantilever mounting lamp 5 side.

According to this embodiment, the inner peripheral wall 13, which is the peripheral surface facing the cantilever mounting lamp 5 of the lighting component storage portion 3, can also be used as a reflector, so that the illuminance directly under the lamp can be increased and the reflection of light and heat can be achieved. Thereby, the cooling effect of the lighting component 8 can be improved. 7 and 8 are disclosed techniques. That is, the present invention relates to an adapter incorporating a lighting circuit 71 for using a cantilever mounting lamp 70 such as a compact fluorescent lamp instead of an incandescent lamp.

As shown in FIG. 9, the conventional adapter has a screw base 91 on one side of an adapter body 90, which is the same as an incandescent lamp.
And a socket portion 93 for mounting the cantilever mounting lamp 92 on the opposite side thereof. Reference numeral 94 is a lighting circuit. In an exposed ceiling light and a wall bracket, when a cantilever mounting lamp 92 such as a compact fluorescent lamp is mounted on the adapter body 90, the length of the adapter body 90 and the length of the cantilever mounting lamp 92 are added, so that from the mounting surface. It was difficult to use because the height to the tip of the lamp extended and it occupied a large space.

In the disclosed technique, in addition to the socket portion 73 on the bottom surface of the adapter body 72, at least one socket portion 74 is provided on the peripheral surface of the adapter body 72.
As a result, when the cantilever mounting lamp 70 is mounted on the socket portion 74, the height from the mounting surface is within the height of the adapter body 72, and the occupied space can be reduced. A specific example will be described using the adapter shown in FIGS. 7 and 8. That is, the screw-in base portion 7 is screwed into the upper end portion of the adapter body 72.
5, the first socket portion 73 is provided at the lower end portion, the second socket portion 74 is provided at the peripheral surface, and the lighting circuit is provided inside the adapter body 72. Also, the first socket portion 7
And a stopper 76 between the third socket portion 74 and the second socket portion 74.
The socket portion 73 and the second socket portion 74 are arranged so as to be movable in the opposing direction, and the spring bearing 77 in the middle of the stopper 76 is disposed.
The other ends of the pair of return springs 78, 79 whose one ends are locked to the vicinity of the first socket 73 and the second socket 74 are stably stopped at the balanced positions of the return springs 78, 79. ing. Both ends of the stopper 76 project into the first socket portion 73 and the second socket portion 74, and when the cantilever mounting lamp 70 is mounted on the first socket portion 73 as shown in FIG. It is prevented that the cantilever mounting lamp 70 is mounted on the second socket portion 74 by being pushed by the base of the mounting lamp 70, moving backward and moving from the first socket portion 73 and protruding to the second socket portion 74. To do. At this time, the return spring 78 is compressed and the return spring 79 is expanded. When the cantilever mounting lamp 70 is pulled out from the first socket portion 73, the stopper 76 is returned to the position shown in FIG. 8A by the restoring action of the return spring 78. On the other hand, when the cantilever mounting lamp 70 is mounted on the second socket portion 74, the stopper 76 moves in the opposite direction to prevent the cantilever mounting lamp 70 from being mounted on the first socket portion 73, Stopper 7
6 performs an interlock operation.

According to the disclosed technique, when the cantilever mounting lamp 70 is mounted on the second socket portion 74 when it is used for a ceiling light or the like, the height from the mounting surface can be lowered, and the space in the height direction can be reduced. Can be used without problems even when the space is narrow. Also, by selecting the socket portion of the cantilever mounting lamp 70, efficient light distribution can be performed on the irradiation surface.
For example, the cantilever mounting lamp 70 is attached to the first socket portion 73.
When attached, the amount of light is large in the horizontal direction but is small directly below, and when attached to the second socket portion 74, the amount of light is large in the direction directly below. Also 30 degrees, 45 degrees, 60 degrees, 90
By providing a plurality of sockets with different degrees, it is possible to express changes such as flow feeling depending on the lamp angle, and by changing the direction of the lamp, the light distribution and appearance can be diversified.

[0025]

According to the cantilever mounting lamp socket adapter of the first aspect, since the lighting component storage portion is provided so as to project from the socket portion to the outer periphery of the cantilever mounting lamp, the lighting component is separated from the socket portion and the lamp emits light. Since it is possible to keep away from a high temperature portion such as a position directly above the tube, it is possible to avoid the thermal influence of the lighting component, and it is possible to use a lighting component having a low heat resistant temperature. Further, even when the screw-in base portion and the socket portion are coaxially provided, since the lighting components are not arranged in the axial direction, there is an effect that the total length in a state where the cantilever mounting lamp is mounted can be shortened.

According to the socket adapter for a cantilever mounting lamp of a second aspect, in the first aspect, among the lighting components, a component having a high heat resistant temperature is arranged at a position close to the cantilever mounting lamp, and Since the low component is arranged at a position farther from the cantilever mounting lamp than the high heat-resistant component, the lighting component can be easily arranged in addition to the effect of claim 1.

According to the socket adapter for a cantilever type lamp of claim 3, since the vent hole is formed between the lighting component storage part and the socket part in claim 1 or 2, the cantilever mounting lamp socket adapter according to claim 1 or claim 2. In addition to the effect of item 2, the lamp heat generated from the cantilever mounted lamp escapes through the ventilation hole, so that heat is not accumulated and the cooling effect is improved.

According to the socket adapter for a cantilever mounting lamp of claim 4, in claim 1, claim 2 or claim 3, the lighting component storage portion has an umbrella shape. In addition to the effect of claim 2 or claim 3, since the peripheral surface of the lighting component storage portion facing the cantilever mounting lamp can also be used as a reflector, it is possible to increase the illuminance directly under the lamp and improve the cooling effect of the light heat lighting component. can do.

[Brief description of drawings]

FIG. 1 is a cutaway side view of a first embodiment of the present invention.

FIG. 2 is an exploded perspective view thereof.

FIG. 3 is a cutaway side view of the second embodiment.

FIG. 4 is an exploded perspective view thereof.

FIG. 5 is a cutaway side view of a conventional example.

FIG. 6 is a cross-sectional view of the adapter.

FIG. 7 is a cutaway side view of the disclosed technology.

FIG. 8 is a schematic partial cross-sectional view of an operating state of the stopper.

FIG. 9 is a cutaway side view of a conventional example of the disclosed technology.

[Explanation of symbols]

 1 Screw-in base part 2 Socket part 3 Lighting part storage part 4 Adapter body 5 Cantilever mounting lamp 6 Base 8 Lighting part 8a High heat resistant part 8b Low heat resistant part 10 Vent hole 12 Space

Continuation of front page (51) Int.Cl. ⁶ Identification number Office reference number FI Technical indication location H01R 33/945 A 7737-5B (72) Inventor Shindo Nishihama 1048, Kadoma, Kadoma-shi, Osaka Matsushita Electric Works, Ltd. (72) Inventor Masaaki Isoda 1048, Kadoma, Kadoma-shi, Osaka Prefecture Matsushita Electric Works, Ltd.

Claims (4)

[Claims] 1. A screw-in base part for screwing and connecting to a lamp socket, a socket part connected to the screw-in base part for mounting a base of a cantilever mounting lamp, and the cantilever mounting lamp from the outer periphery of the socket part. A socket adapter for a cantilever mounting lamp, comprising a lighting component storage portion which projects a peripheral portion of the cantilever mounting lamp with a space therebetween and stores a lighting component therein. 2. Among the lighting components, a component having a high heat resistant temperature is arranged at a position close to the cantilever mounting lamp, and a component having a low heat resistant temperature is farther from the cantilever mounting lamp than the component having a high heat resistant temperature. The socket adapter for a cantilever mounting lamp according to claim 1, wherein the socket adapter is arranged at a position. 3. The cantilever mounting lamp socket adapter according to claim 1, wherein a ventilation hole is formed between the lighting component storage portion and the socket portion. 4. The socket adapter for a cantilever mounting lamp according to claim 1, 2, or 3, wherein the lighting component storage portion has an umbrella shape.