JPH02260318A - Lighting device - Google Patents

Abstract

PURPOSE:To suppress a temperature raise in an equipment body by forming an operation recessed part for removing a lamp holding body in a fitting recessed part for fitting the lamp holding body to the equipment body, and forming a ventilation hole in a position opposed to the operation recessed part. CONSTITUTION:A semi-circular operation recessed part 15 is formed on the edge parts of the center both sides of a lamp holding body fitting recessed part 5 formed on the outer surface of a cover 3, and a step part 15a is formed on the inner bottom side of the part opposed to the operation recessed part 15. A number of ventilation holes 17 are formed on the vertical surface of the step part 15a and communicated to the outer surface by the operation recessed part 15. Thus, the heat in the equipment body can be released to eliminate the influence on the lighting circuit by the temperature raise in the equipment body, and stabilized lighting can be conducted.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a lighting device, and relates to a device such as a pendant that is provided with a removable lamp holder for attaching a lamp to the main body of the device.

(Prior art) Conventional lighting equipment of this kind is, for example,
As described in Japanese Patent No. 0209, a structure was adopted in which a lamp socket was connected to a device body via a cord, and a lamp holder for holding an annular lamp was detachably attached to the device body.

(Problems to be Solved by the Invention) In the structure described in the above-mentioned conventional Japanese Utility Model Publication No. 56-130209, the lamp holder has a structure in which a screw protruding from the device body is pushed through the insertion hole of the lamp holder. Because the lamp holder is attached to the fixture body by screwing a nut into the lamp holder, when replacing the lamp, etc., when attaching the lamp holder to the fixture body, it is difficult to compare the lamp holder's insertion hole with the fixture body at a high place. This has the problem of having to push through a screw with a small target diameter, making alignment difficult and having poor operability.

The present invention has been made in view of the above-mentioned problems.The lamp holder with the lamp attached thereto is removably fitted into a fitting recess formed in the fixture body, and the lamp holder is attached to the fixture body with the lamp still attached. Provided is a lighting device that allows ventilation from the fitting recess of the device body into which the lamp holder is fitted, improves heat dissipation within the device body, and provides stable lighting in a lighting device that allows for easy lamp replacement. It is something to do.

[Structure of the invention]

(Means for Solving the Problems) The lighting device of the present invention has a device main body having a reflective surface, a lamp socket electrically connected to the device main body, and a long and narrow lamp socket that is mechanically detachably attached. The lamp holder includes a lamp holder and an annular lamp attached to the lamp holder, and an elongated fitting recess into which the lamp holder is fitted is formed in the reflective surface of the fixture body, and the lamp holder In the lighting device, the lamp holder has a locking portion that is removably locked to the device body, and a lower surface portion that forms a rough image with the reflective surface of the device body when fitted into the fitting recess. The body is formed with a removal operation portion for releasing the engagement between the device main body and the locking portion approximately at the center of a side portion that is fitted into the fitting recess of the device main body, and the device body An operation recess is formed at the central edge of the lamp holder fitting recess, and an operation recess is formed in which a removal operation section of the lamp holder fitted into the fitting recess faces, and the operation recess of the fitting recess is opposite to the operation recess. It is characterized by having ventilation holes formed in the parts.

(Function) The lighting fixture of the present invention holds the lamp by attaching it to the lamp socket of the lamp holder, and can be attached to and detached from the fixture body while the lamp is held in the lamp holder, and the lamp holder can be attached and detached when replacing the lamp. In addition, the operating recess formed in the X-shape on the reflective surface of the instrument body for attaching and detaching the lamp holder is communicated with the ventilation hole formed in the fitting recess of the instrument body, and the heat inside the instrument body is radiated. Stable lighting is achieved without affecting the lighting circuit due to temperature rise inside the appliance body.

(Example) The configuration of an embodiment of the present invention will be described with reference to the drawings.

Reference numeral 1 denotes the main body of the device, which is composed of a plate-shaped base plate 2 with an opening at the bottom and a substantially spherical arc-shaped cover 3, and the outer surface of the cover 3 has a white diffuse-reflecting surface or a silver-colored diffuse-reflecting surface. is formed on the reflective surface 4 of.

A diametrically elongated lamp holder fitting recess 5 is formed in the reflecting surface 4. A locking hole 6 is formed at the left and right center portions of both side surfaces of the fitting recess 5, and a pull switch fitting protrusion 7 is formed approximately at the center of the inner bottom surface of the fitting recess 5 of the instrument main body 1. is formed in the lower surface of this fitting protrusion 7, and an insertion hole 10 for the pull string 9 of the pull switch 8 is formed.
is formed. Furthermore, a substantially cylindrical night light installation part 11 is protruded from one side of the inner bottom surface of the fitting recess 5, the lower surface of this night light installation part 11 is open, and the night light installation part 11 is transparent. A light cover 12 is removably fitted. Further, a connector hole 13 is formed on the other side of the inner bottom surface of the fitting recess 5 . Furthermore, guard holes 14 are formed facing both sides of this connector hole 13, respectively.

In addition, semicircular concave arc-shaped operation recesses 1 are provided at the outer edges of both sides of the central part of the lamp holder fitting recess 5 formed on the outer surface of the cover 3.
5 is formed, and a stepped portion 151 is formed on the inner bottom side of the portion facing the operating recess 15, and a large number of ventilation holes 17 are formed on the vertical surface of the stepped portion 15. 15 communicates with the outer surface.

Further, a circuit board 16 is fitted into the inner surface of the cover 3, and the peripheral edge of the circuit board 16 is locked by a plurality of locking claws 31 protruding from the inner surface of the cover 3. The pull switch 8 is mounted on one side of the circuit board 16 at the approximate center, and a connector 18 is mounted on one side of the circuit board 16 on one side of the pull switch 8. Lighting parts such as ballasts are attached to one side of the lamp. With the circuit board 16 fitted to the cover 3, the lower part of the pull switch 8 is disposed in the pull switch fitting protrusion 7, and the pull switch 8 is inserted through the lower surface insertion hole 10 of the fitting protrusion 7. The drawstring 9 is pulled out from the insertion hole 10, and furthermore, this circuit board! A light emitting diode 19 connected to the connector 6 is disposed in the night light casing 11, and the lower surface of the connector 18 is exposed to the connector hole 13. This connector 18 has a locking protrusion 20 located inside the lamp holder fitting recess 5 of the cover 3.
is locked.

Next, reference numeral 21 denotes a lamp holder that is fitted into the fitting recess 5 of the instrument main body 1. This lamp holder 21 is formed into a substantially elongated shape, and the upper surface of both ends has annular shapes with different diameters. Holding arms 24 , 25 that elastically hold the lamps 22 , 23 in a removable manner are formed in a downwardly inclined shape toward the outside, and the base portion of the large-diameter lamp 22 is attached to the lower side of one of the holding arms 24 . A holding part 28 having a lamp socket 27 to which 26 lamp pins are connected is provided, and a holding part 31 having a lamp socket 30 to which a lamp pin of the base part 29 of the small-diameter lamp 23 is connected is provided above one of the holding arms 24. It is provided. Further, a holding part 32 for holding the large-diameter lamp 22 is provided below the other holding arm 25, and a holding part 33 for holding the small-diameter lamp 23 is provided above the holding arm 25. .

The lamp holder 21 also has a removal operation part 35 formed on both sides of the lamp holder 21 with a locking part 34, for example, an elastic locking piece 34, which is removably locked in the locking hole 6 of the device main body 1, at the center of both sides. When the lamp holder 21 is fitted into the fitting recess 5 of the instrument main body 1, the locking piece 34 is elastically engaged with the locking hole 6 and the lamp holder 21 is formed with a cut groove 36. is adapted to be attached to the instrument body 1. When the removal operation part 35 is pressed from the operation part 15 of the instrument main body 1, the locking piece 34 of the lamp holder 21 is released from the locking hole 6, and the lamp holder 21 is removed from the fitting recess 5. It is designed to be removable.

Further, in the center of the lamp holder 21, a fitting part, for example, an insertion hole 37, through which the pull switch fitting protrusion 7 is inserted, is formed through the upper and lower surfaces, and the lamp holder 21 is located on one side of the insertion hole 37. An insertion hole 38 through which the night light casing 11 is inserted is formed through the upper and lower surfaces. Further, a connector piece 40 connected to the connector 18 is provided protruding from the other side of the upper surface of the lamp holder 21, and guard pieces 41 are provided protruding from both sides of the connector piece 40.

Then, with the lamp holder 21 fitted into the fitting recess 5 of the cover 3, the pull switch fitting protrusion 7 is inserted into the insertion hole 37 and the drawstring 9 is pulled out, and the night light installation part 11 is inserted into the pull switch fitting protrusion 7. The translucent cover 12 is exposed to the insertion hole 38, and the connector piece 40 is inserted and connected to the connector 18 by the engagement guide between the guard piece 41 and the guard hole 14.

The reflective surface 4 on the outer surface of the cover 3 of the instrument body 1 is continuous to the lower surface and is formed into a substantially spherical arc shape as a whole, and the diameter of the reflective surface 4 formed on the lower surface of the approximately spherical arc surface 4 is The lower surface portion 42 of the lamp holder 21 that is fitted into the fitting recess 5 that crosses the direction is also formed in a substantially spherical arc shape, so that when the lamp holder 21 is fitted into the fitting recess 5 of the instrument main body 1, , the instrument body 1
The curved surface of the substantially spherical arc-shaped lower surface of the reflecting surface 4 and the substantially spherical arc-shaped curved surface of the lower surface 42 of the lamp holder 21 are formed into substantially flush curved surfaces. Further, the lower surface portion 42 of the lamp holder 21
are also formed on the reflective surface as necessary.

Next, the operation of this embodiment will be explained.

The lamp pin of the base portion 2G of the large-diameter lamp 22 is connected to the lamp socket 27 and held in the holding part 28 on the lower side of one holding arm 24 of the lamp holder 21, and is held on the lower side of the other holding arm 25. The lamp pin of the base 29 of the small-diameter lamp 23 is connected to the lamp socket 30 and held by the upper holding part 31 of one holding arm 24, and the upper holding part 33 of the other holding arm 25 The lamps 22 and 23 are held in the lamp holder 21.
to hold. When the lamp holder 21 holding the lamps 22 and 23 is fitted into the fitting recess 5 of the instrument body 1, the elastic locking pieces 34 on both sides of the lamp holder 21 fit into the locking holes 6 of the instrument body 1. The lamp holder 21 is removably locked mechanically and is fitted and held in the fitting recess 5 of the instrument body 1. In this state, one ventilation hole on the inner bottom side of the fitting recess 5 of the instrument body 1 is communicated with the operation recess 15 to form a ventilation path. In addition, the insertion hole 3 in the center of the lamp holder 21
1 is fitted into the pull switch fitting protrusion 7 of the switch part,
The lamp holder 21 is fitted into the fitting recess 5 of the instrument body 1 as a guide for positioning the lamp holder 21 with respect to the instrument body 1 . The pull string 9 of the pull switch 8 is then pulled out into the insertion hole 37. Also, at this time, the night light installation item is inserted into the insertion hole 38, the transparent cover 12 of the night light installation part 11 is exposed to the insertion hole 38, and the connector piece 40 is connected to the guard piece 41 and the guard hole 14. Connector 1 with matching guide
g, and the lamp socket 27.30 is connected to the lighting circuit of the circuit board 16. In the warped and levered state, the lower surface portion 42 of the lamp holder 21 forms a curved surface that is substantially flush with the reflective surface 4 of the device main body 1.

In this state, in order to light up the lamps 22.23, pull the pull string 9 of the pull switch 8 pulled out from the insertion hole 37 of the lamp holder 21, and the lamps 22.23 will be lit. Then, an air passage is formed through which the inside and outside of the instrument body 1 communicate with each other through the operating portion 15 formed in the fitting recess 5 of the cover 3 in the instrument body 1 and the ventilation hole 17 at the inner bottom, so that heat convection is generated. This causes heat dissipation within the appliance body i, suppressing a temperature rise within the appliance body 1, and continuing stable lighting without thermally affecting the lighting circuit within the appliance body 1.

In addition, when replacing the lamps 22 and 23, press the removal operation part 35 of the lamp holder 21 from the operation recess 15 to release the locking piece 34 and the lock 11-hole 6, and remove the lamp holder 21. When removed from the fitting recess 5 of the instrument body 1, the lamp holder 21 can be separated from the instrument body 1 while the lamps 22, 23 are attached to the lamp holder 21. Then, this lamp holder 21 is attached to a lamp 22. The lamps 22 and 23 can be easily replaced by bringing the lamps 22 and 23 to a lower position where they can be easily replaced.

〔Effect of the invention〕

According to the present invention, the fitting recess for fitting the lamp holder into the appliance main body is formed with four operation parts for operating the removal operation part of the lamp holder, and the ventilation hole is formed in the portion of the fitting recess opposite to the four operation parts. Therefore, when the lamp holder with the lamp attached is fitted into the fitting recess of the appliance body, the inside of the appliance body is communicated with the operation recess through the ventilation hole, and the temperature rise inside the appliance body is suppressed. The lighting does not become unstable due to thermal effects on the lighting circuit installed in the appliance body, allowing stable lighting to continue, and the ventilation hole is formed in the fitting recess of the appliance body and communicates with the operation recess. , the ventilation hole is not exposed to the outside, and the appearance is not impaired.Furthermore, the lamp holder can be removed from the fixture body and carried to a low position where it is easy to replace the lamp, making it easy to replace the lamp. It is something that can be done.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a lighting fixture showing an embodiment of the present invention, Fig. 2 is a perspective view showing the above lamp attached, Fig. 3 is an exploded perspective view of the above lamp, and Fig. 4 is a lamp holder. FIG. 5 is an exploded perspective view of the main body of the above device, FIG. 6 is a longitudinal sectional front view of the lighting device, FIG. 7 is a plan view of the cover of the above device, and FIG. 8 is a longitudinal sectional front view of the same device. . 1. Instrument body, 5. Fitting recess, 15. Operation recess, 170. Ventilation hole, 21. Lamp holder, 22, 23.
・・Lamp, 27.30・・Lamp socket, 34・・
J1 piece of the locking part.

Claims (1)

[Claims] (1) A device body with a reflective surface, a slender lamp holder that has a lamp socket that is electrically connected to the device body and is mechanically detachably attached, and an annular shape that is attached to the lamp holder. an elongated fitting recess into which the lamp holder is fitted in the reflective surface of the instrument main body, and the lamp holder has a locking member that is removably latched to the instrument main body. In the lighting fixture, the lamp holder is fitted into the fitting recess of the fixture body and has a lower surface that is substantially flush with the reflective surface of the fixture body when fitted into the fitting recess. A removal operation portion for releasing the engagement between the device main body and the locking portion is formed approximately in the center of the side surface of the lamp holder, and the device main body has a removal operation portion formed at a central edge of the lamp holder fitting recess. An illumination device characterized in that an operation recess is formed in which a removal operation section of the lamp holder fitted into the fitting recess is exposed, and a ventilation hole is formed in a portion of the fitting recess opposite to the operation recess. utensils.