JP2001076528A - Lighting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the waterproofness of the connecting portion between the socket section of a lighting system and the base of a lamp. SOLUTION: A cover 45 is closely fitted with the outer periphery of an envelope covering the socket section 42 of the lighting system 1. The cover 45 is made of a water-repellent resin. A water-repellent film 50 is formed on the outer periphery of the envelope 41. When the base 12 of the lamp 2 of an electric bulb type fluorescent lamp device is fitted to the socket section 42, the tip section 45a of the cover body 45 is stuck to the substrate 11 of the lamp 2 to cover the connecting portion of the base 12 and socket section 42. The intrusion of moisture into the lamp 2 is suppressed, and a lighting circuit in the lamp 2 can be protected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device to which a lamp having a base is attached.

[0002]

2. Description of the Related Art Conventionally, as an energy saving type light source, a lighting circuit component such as a ballast is incorporated together with an arc tube, and an E26 type base commonly used for incandescent lamps is provided. A fluorescent lamp device in the form of a light bulb compatible with an incandescent light bulb is used.

[0003] This fluorescent lamp device is, for example,
A holder to which a lighting circuit and an arc tube are attached, a base to which the holder is attached, a base attached to one end of the substrate, and a glove or irradiation attached to the other end of the substrate as necessary to cover the arc tube It is composed of a reflector having an opening.

However, when such a fluorescent lamp device is used by mounting it on a lighting device having a socket portion into which a base is screwed upward, in a place such as a greenhouse where water droplets are splashed, the lamp blinks. During the repetition, the water applied to the lighting device may not drop smoothly, and water may accumulate at the connection portion between the fluorescent lamp device and the socket. In this state, moisture may enter the inside of the base through the hole for taking out the side wire provided on the base of the fluorescent lamp from the base to the outside. In addition, even under a high humidity atmosphere such as outdoors, moisture easily enters the inside of the substrate.

[0005] When the fluorescent lamp device into which moisture has entered the interior is turned off and the tube wall of the arc tube and the inner surface of the cover are cooled, water vapor becomes water droplets and remains inside the base. And when this water drop increases, it causes electrical insulation to decrease,
The normal operation of the lighting circuit may be hindered.

In this respect, for example, Japanese Utility Model Laid-Open No. 63-12101
As described in Japanese Patent Application Publication No. 1 (1993) -1994, a configuration is known for a bulb-shaped fluorescent lamp device in which a film is formed on an outer surface of a joint between a base and a globe to prevent moisture from entering the joint. .

[0007]

In the above-mentioned conventional configuration,
There is a need for improved durability, a need for improved waterproofing at the connection between the base and the base, and a demand for improved waterproofing between the base of the fluorescent lamp device and the socket of the lighting device.

[0008] The present invention has been made in view of the above points, and an object of the present invention is to provide a lighting device capable of improving waterproofness.

[0009]

According to a first aspect of the present invention, there is provided a lighting device comprising: a socket portion on which a base of a lamp is mechanically and electrically mounted; an envelope covering the socket portion; and an outer peripheral portion of the envelope. And a cylindrical covering member that covers the connection between the socket and the base in close contact with the lamp.

[0010] In this configuration, since the covering member is in close contact with the lamp and covers the connection portion between the socket portion and the base, the waterproofness of the connection portion and the base portion of the lamp is improved, and a place where water drops are splashed or The life of the lamp and the lighting device can be extended in places with high humidity.

According to a second aspect of the present invention, in the lighting device of the first aspect, the cover is attached to the envelope so as to be able to advance and retreat toward the lamp.

In this configuration, by moving the cover forward and backward, the cover adheres to the lamp regardless of the shape of the lamp, and the versatility is improved.

According to a third aspect of the present invention, there is provided the lighting device according to the first or second aspect, wherein the lamp is a light bulb having a lighting circuit, a base housing the lighting circuit, and a base attached to the base. Wherein the cover is in close contact with the substrate.

In this configuration, the cover covers the connection portion between the socket and the base in close contact with the base of the fluorescent lamp device in the form of a light bulb, so that the connection portion and the base portion of the fluorescent lamp device are waterproof. The lighting device is protected, and the life of the fluorescent lamp device and the lighting device in a place where water drops are splashed or a place with high humidity is extended.

According to a fourth aspect of the present invention, in the lighting device according to any one of the first to third aspects, the envelope is provided with a water-repellent coating on the surface.

With this configuration, the waterproofness of the envelope is improved, and the life of the lighting device is extended.

[0017]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a lighting device according to an embodiment of the present invention.

FIG. 1 is a partially enlarged cross-sectional view showing an embodiment of the lighting device of the present invention. FIG. 2 is a front view of the lighting device, in which the lamp is partially cut away. FIG. 3 is a partially cutaway front view showing the lighting device. FIG. 4 is an explanatory diagram showing the operation of the above lighting device. FIG. 5 is an explanatory diagram showing the operation of the above lighting device.

1 to 3, reference numeral 1 denotes a lighting device. The lighting device 1 is used, for example, for growing plants in a greenhouse, and has a lamp 2 and a pair of electric wires 3 connected thereto.

The lamp 2 is a light bulb-shaped fluorescent lamp device, and includes a base 11, a base 12, a holder 14, an arc tube 15, a lighting circuit 16, a globe 17, and the like.
Hereinafter, the description will be made with the base 12 side as the upper side.

The base 11 is also called a cover body, and is made of a synthetic resin material having electrical insulation and heat resistance such as polybutylene terephthalate (PBT). A base body (not shown) having a spiral groove formed on the outer periphery is formed on the base body 21 provided with the housing portion, and on the base end side, which is one end of the base body 21 above the base. An Edison-type base 12 such as an E26 type is screwed around the outer periphery of the base mounting portion.

The base 12 has an insulating part 23, a conductive base part 24 fixed at the center of the upper end of the insulating part 23, and a conductive part fixed to the outer peripheral part of the insulating part 23. And a screw cap portion 25.

The holder 14 is called a partition plate or a fixed plate. The partition plate portion 31 is made of a heat-resistant synthetic resin such as polybutylene terephthalate and has a disk shape. A cylindrical portion 32 projecting upward from the outer peripheral portion of the 31 is integrally formed.

The arc tube 15 has, for example, a bulb portion obtained by bending a glass tube having electrodes sealed at both ends into a substantially U-shape, and further bending this U-shaped bulb into a substantially U-shape. Or a so-called saddle-shaped bent valve, or a plurality of U-shaped
The valve is formed by connecting a V-shaped valve with a communication pipe.

Further, the lighting circuit 16 includes a disc-shaped circuit board.
35 and the electrical components 36 mounted on the base side of the circuit board 35
And an inverter circuit that performs high-frequency lighting.

The globe 17 is formed in a hemispherical shape from a transparent or light diffusing synthetic resin material or a glass material.

In order to assemble the lamp 2, the arc tube 15 is fixed to the lower side of the partition plate 31 of the holder 14 by bonding or the like, and the lighting circuit 16 is fitted to the cylindrical portion 32 of the holder 14. The light emitting tube 15 and the lighting circuit 16 are electrically connected to each other. Then, the holder 14 is fixed in the base body 21 of the base 11 by fitting or the like. Also, the two input lines derived from the lighting circuit 16 are connected to the tip base 24 of the base 12 and the screw base.
The base 12 is fixed to a base mounting portion of the base 11. Further, the globe 17 covers the arc tube 15 and is joined to the opening on the lower side of the base 11 with a silicone resin to constitute the lamp 2.

On the other hand, the lighting device 1 can be called a waterproof socket, and includes an envelope 41, a socket portion 42 and an electric wire connection portion 43 housed in the envelope 41, and an outer peripheral portion of the envelope 41. And a covering body 45 provided on the second member.

The envelope 41 is composed of an envelope body 47 made of a synthetic resin having electrical insulation and heat resistance such as polybutylene terephthalate, and the envelope body 47.
A pedestal portion 48 fixed by screwing or the like is provided on the upper side, and a water-repellent coating 50 made of, for example, a silicone resin, a fluorine resin, or a resin obtained by mixing these resins is provided on the outer peripheral surface. Is formed. The envelope main body 47 is provided with a cylindrical socket storage part 51 having a lower opening, and a socket part is provided inside the socket storage part 51.
A shell receiver 53 which is screwed into the screwed base part 25 of the base 12 and electrically and mechanically connects to the base base part 24, and a metal which is elastically contacted with the front end base part 24 and electrically connected. An eyelet contact piece 54 as a plate is housed. Further, the shell receiving member 53 and the eyelet contact piece 54 are fixed by screws 57 screwed to a bottom plate portion 56 that partitions the upper side of the socket storage portion 51.

A terminal storage section 61 is provided above the socket storage section 51. The terminal storage section 61 has a pair of connection fittings 63, 63 constituting a wire connection section 43 and a self-locking terminal fitting. 64, 64 are stored. And the connection fittings 63, 63
Is a shell receiving member 53 and an eyelet connecting piece 54 via a screw 57.
And the self-locking terminal fittings 64, 64 are connected to the connecting fittings 63, 63.
Are arranged to face each other. Therefore, the core wire 3a of the electric wire 3 inserted from the electric wire insertion port 65 provided in the envelope 41 is connected in a chain between the connection fitting 63 and the self-locking terminal fitting 64, and the connection fitting 63 and the screw are connected. Electric power is supplied to the base 12 of the lamp 2 via the shell holder 53 and the eyelet connecting piece 54.

Note that a lead wire can be used for the wiring in the socket storage section 51 or the wiring in the terminal storage section 61.

Further, a lock release button is provided in the terminal storage 61.
When the lock release button 67 is pressed, the self-locking terminal fitting 64 is deformed against the elastic force, and the electric wire 3 can be easily removed.

The cover 45 is formed in a cylindrical shape that fits tightly on the outer periphery of the socket storage portion 51 of the envelope 41, and the distal end 45 a, which is the lower end, is the lower end of the envelope 41. It protrudes downward. The cover 45 is made of a silicone resin, a fluorine resin, or a resin obtained by mixing these resins, has water repellency, has a low hardness, is easily deformed, and is easily deformed by other members. Closely adhere.

Then, when the E26 type base 12 of the lamp 2 is inserted into the socket portion 42 of the lighting device 1 and screwed and tightened,
The base 12 is electrically and mechanically connected to the shell receiver 53 by screwing or the like, and the distal end portion 45a of the cover 45 is elastically deformed and comes into close contact with the surface of the base 11 of the lamp 2 to form a base.
The connection part between the base 12 and the base 12 and the socket part 42 is covered in a liquid-tight manner, that is, waterproof.

As described above, according to the present embodiment, the cover
Since the 45 covers the Edison base 12 of the lamp 2 and the connection between the base 12 and the socket 42 in a liquid-tight manner, the waterproofness of the connection and the base 12 of the lamp 2 is improved. Inhibiting entry of moisture into the device 1 and the lamp 2 and protecting the lighting circuit 16 and the like, the lamp 2 and the lighting device 1 in a place where water droplets are splashed or where the humidity is high.
Life can be extended.

Further, the water-repellent coating 50 on the outer peripheral surface of the envelope 41
And since the covering 45 is formed of a resin having water repellency,
Water resistance can be improved.

By improving the waterproofness in this way, it becomes possible to use a bulb-shaped fluorescent lamp device as a lamp for plant cultivation with a long life, thereby realizing power saving.

When the lamp 2 is turned on at midnight,
Insects can be prevented from entering the socket 42 and the like of the lighting device 1.

The cover 45 is provided so as to be able to advance and retreat in the axial direction of the envelope 41, ie, along the mounting direction of the lamp 2,
By using a movable portion, for example, the cover 45 is moved to the base 11 side of the lamp 2 from a state in which the cover 45 shown in FIG. You can also. And, with this configuration, the cover 45 can be brought into close contact with the lamp 2 irrespective of the shape of the lamp 2 and the like, and the versatility can be improved.

In the configuration in which the cover 45 is a movable body that can move forward and backward, a pressing mechanism such as an elastic body or a screw that presses the cover 45 toward the lamp 2 may be provided.

In the above-described embodiment, the outer surface of the envelope 41 is a cylindrical surface, and the cover 45 is also a cylinder. However, the outer surface shape of the envelope 41, and the inner and outer surfaces of the cover 45 are also described. The shape can take various shapes. For example, the outer surface of the envelope 41 may have a polygonal shape.

As the lamp, in addition to a fluorescent lamp device in the form of a light bulb, any lamp having a screw-type base may be used, and an incandescent light bulb may be used.

[0043]

According to the illuminating device of the first aspect, since the covering member is in close contact with the lamp and covers the connection portion between the socket portion and the base, the waterproofness of the connection portion and the base portion of the lamp is improved. However, the life of the lamp and the lighting device can be prolonged in a place where water is splashed or a place where the humidity is high.

According to the illumination device of the second aspect, in addition to the effect of the first aspect, the cover is attached to the envelope so as to be able to advance and retreat toward the lamp. Irrespective of this, the covering can be in close contact with the lamp, and the versatility can be improved.

According to the lighting device of the third aspect, in addition to the effect of the first or second aspect, the covering member is in close contact with the base of the fluorescent lamp device having a bulb shape and covers the connection portion between the socket portion and the base. As a result, the waterproofness of the connection portion and the base portion of the fluorescent lamp device is improved, the lighting device is protected, and the life of the fluorescent lamp device and the lighting device is extended in a place where water is splashed or a high humidity. it can.

According to the illumination device of the fourth aspect, in addition to the effect of any one of the first to third aspects, the waterproofness of the envelope is improved because the water-repellent coating is provided on the surface of the envelope. ,
The life of the lighting device can be extended.

[Brief description of the drawings]

FIG. 1 is a partially enlarged sectional view showing one embodiment of a lighting device of the present invention.

FIG. 2 is a front view of the lighting device with the lamp partially cut away.

FIG. 3 is a partially cutaway front view showing the lighting device;

FIG. 4 is an explanatory diagram showing an operation of the lighting device.

FIG. 5 is an explanatory diagram showing an operation of the lighting device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Illumination device 2 Lamp 11 Base 12 Base 16 Lighting circuit 41 Enclosure 42 Socket part 45 Coating body 50 Water-repellent coating

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Katsuhide Misono 4-3-1 Higashishinagawa, Shinagawa-ku, Tokyo Toshiba Lighting & Technology Corporation F-term (reference) 3K013 AA05 BA04 CA09 3K014 AA04 NA01 5E024 BD20

Claims (4)

[Claims] 1. A socket on which a base of a lamp is mechanically and electrically mounted; an envelope covering the socket; A tubular covering body for covering a connection portion between the socket portion and the base. 2. The lighting device according to claim 1, wherein the covering body is attached to the envelope so as to be able to advance and retreat toward the lamp. 3. The lamp is a light bulb-shaped fluorescent lamp device including a lighting circuit, a base housing the lighting circuit, and a base attached to the base, wherein the cover is in close contact with the base. The lighting device according to claim 1 or 2, wherein 4. The lighting device according to claim 1, wherein the envelope has a water-repellent coating on a surface thereof.