JP2003007130A - Luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the workability at assembling and to reduce the cost of a part of a water-proof luminaire provided with an inverter lighter by elaborating shape/configuration with the use of a plastic mold for a side board. SOLUTION: An inverter lighter 2 attached with external connection lead wires 5 and 6 is housed in a cylindrical case 1. A side board 3 of a plastic mold is attached to both ends of the case 1. The external connection lead wires 5 and 6 are inserted into a through hole 32 provided to the side board 3. The outside of the side board 3 is filled with a resin 4 for water proof. It is preferred that the side board 3 is provided with a tapered part 31 for improved adhesion with the cylindrical case 1, the through hole 32 in which the external connection lead wire is inserted, and a protrusion 33 for fixing a bottom plate 22 of the inverter lighter 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device having a waterproof function.

[0002]

2. Description of the Related Art (Prior Art 1) FIG. 18 shows a schematic structure of a conventional waterproof type electromagnetic lighting device. The detailed structure is shown in FIG. In this conventional example, the electromagnetic lighting device main body 20 in which the external connection lead wire 7 is arranged on one side is housed in a cylindrical case 1, a metal side plate A is attached to one side of the case 1, and the inside of the side plate A and the case are mounted. Opening compound 4
The upper surface of 0 is filled with waterproof resin 4. The periphery of the electromagnetic lighting device body 20 is molded with a compound 40.

(Conventional example 2) FIG. 20 shows a schematic structure of a conventional waterproof type inverter lighting device. The detailed configuration is shown in FIG. In this conventional example, an inverter lighting device body 2 in which external connection lead wires 5 and 6 are arranged on both sides
Are housed in a metal cylindrical case 1, side plates B and C made of rubber containing iron plates are attached to both sides of the cylindrical case 1, and a waterproof resin 4 is filled on the outside of the side plates B and C. ing. As shown in FIG. 3, the main body of the electronic lighting device has a printed circuit board and electronic components housed in an aluminum case (lid / bottom plate), and its periphery is covered with an air layer.

In the structure of the side plates B and C, as shown in FIG. 22, an iron plate is molded with a rubber material, and a through hole (external lead-out hole) for an external connection lead wire is provided in the rubber material portion. At the time of assembling this lighting device, the side plate C side is filled with a waterproof resin and the resin is cured. Next, the side plate B side is filled with resin to cure the resin. At this time, since the heat curing treatment is performed, the air layer is heated in a sealed state, expands and the internal pressure rises, the side plate B is deformed by only the rubber material and pushed up, and therefore the waterproof resin is also blown up. , The waterproof structure is destroyed. An iron plate is inserted to prevent the side plate from deforming.

[0005]

Problems to be Solved by the Invention (Problems of Conventional Example 1)
In Conventional Example 1, unless the compound is filled, the heat dissipation of the lighting device main body is poor, the temperature rise of the lighting device main body becomes high, and the shape becomes large. Further, in order to suppress the vibration of the main body of the lighting device, compound filling becomes indispensable. This compound filling increases the weight of the lighting device, which is a disadvantage in terms of construction. In addition, since the compound is filled, a heat curing step is required three times, and workability deteriorates. That is, the heat curing step requires three steps of curing the compound, curing the waterproof resin on the side plate A side, and curing the waterproof resin on the compound and the upper surface. Further, since it is an electromagnetic type, it has a low power consumption efficiency, which is disadvantageous in terms of energy saving.

(Problem of Conventional Example 2) In Conventional Example 1, the cost of the side plates B and C is high because of the composite molding of the rubber material and the iron plate. Further, the side plate portion contacting the inside of the metal case is made of rubber, and when the side plates B and C are inserted into the tubular case, friction between the metal case and the rubber material is large and the insertion work is difficult. Further, the side plates B and C are inserted into a metal case, and the side plate is positioned by a protrusion provided inside the case. At this time, since the side plate outer peripheral portion is softened by the rubber material and deformed as shown in FIG. 23, Fixing work is difficult. In addition, the spring 14
Since the main body of the electronic lighting device is inserted into the metal case after mounting, the insertion work is difficult due to the friction between the inner surface of the cylindrical case and the spring, and the workability is poor.

As described above, the waterproof type electromagnetic lighting device of Conventional Example 1 has the drawbacks of heavy weight, poor workability, and poor power consumption efficiency. It was supplemented with an inverter lighting device. But,
The waterproof type inverter lighting device of Conventional Example 2 has drawbacks such as poor workability and high cost of parts.

The present invention has been made in view of the above circumstances, and in a waterproof type lighting device using an inverter lighting device, a plastic molded product is used for a side plate, and its shape and configuration are devised. Accordingly, it is an object to improve workability during assembly and realize cost reduction of parts.

[0009]

According to the present invention, in order to solve the above-mentioned problems, as shown in FIG. 1, an inverter lighting device 2 equipped with external connection lead wires 5 and 6 is installed in a cylindrical case 1. The side plates 3 made of plastic molded products are attached to both ends of the case 1, the external connection lead wires 5 and 6 are passed through the through holes 32 provided in the side plate 3, and the resin is provided outside the side plates 3. It is characterized by being filled with 4 to have a waterproof function. Here, the side plate 3 has a taper portion 31 for improving adhesion to the tubular case 1, a through hole 32 for passing an external connection lead wire, and a protrusion 33 for fixing the bottom plate 22 of the inverter lighting device 2. Is preferably provided.

[0010]

1 is a diagram showing a schematic configuration of a waterproof type inverter lighting device of the present invention. In the figure, 1 is a cylindrical case, 2 is an inverter lighting device body, 3 is a side plate,
Reference numeral 4 is a waterproof resin, 5 is a power supply side external connection lead wire, and 6 is a load side external connection lead wire.

First, the tubular case 1 is a metal case whose both ends are open, and is made of, for example, an aluminum material, and has an appearance as shown in FIG. 2 when viewed from the open side. Radiating fins 11 are provided on the outer surface of the cylindrical case 1. In addition, a protrusion 12 for side plate positioning is provided on the inner surface of the cylindrical case 1.

Next, the inverter lighting device body 2 is shown in FIG.
As shown in FIG. 3, a ballast circuit in which a large number of electronic components are mounted on a printed circuit board 21 is covered with a bottom plate 22 and a lid 23, and external connection lead wires 5 and 6 are connected to both ends in the longitudinal direction. The terminal block 24 is provided. The lid 2
A label 25 is attached to the upper surface of 3.

Next, the side plate 3 is made of a plastic molded product, and as shown in FIG. 4, the side plate main body 3 has a shape along the inner cross section of the cylindrical case 1, and the cylindrical case is provided at the peripheral portion. The taper portion 31 is provided to improve the adhesiveness with 1. Further, a through hole 32 is provided in the central portion for penetrating the external connection lead wires 5 and 6. Further, a protrusion 33 for fixing the lighting device is provided near the lower end of the inner side surface. The protrusion 33 has a role of pressing the bottom plate 22 of the inverter lighting device main body 2, so that a conventional iron plate spring is unnecessary.

Now, the taper portion 31 of the side plate 3 will be described. FIG. 5 shows a preferred design example of the tapered portion 31 provided on the peripheral portion of the side plate 3. In the figure, H is the thickness of the side plate body 3, a is the thickness of the tip of the tapered portion 31, and c is
Is the thickness of the base end of the taper portion 31, h is the length of the taper portion 31 in the side plate insertion direction, b is the length of the taper portion 31 in the direction orthogonal to the side plate insertion direction, and R is the base of the taper portion 31. It is the radius of curvature inside the end. As conditions for facilitating the insertion work of the side plate 3 while ensuring the close contact with the inner surface of the tubular case 1, b ≧ c ≧ a, a <c,
Let H ≧ h. In addition, as a condition that is hard to break, R ≧ 0.5
And

Next, the through hole 32 of the side plate 3 will be described. As shown in FIGS. 6A to 6C, the through hole 32 is unpenetrated at the beginning of molding and has a thin film portion 32a of 0.5 mm or less in the central portion. Around the thin portion 32a, there is a tapered portion 32b of which the thickness gradually increases. As shown in FIG. 7, when the external connection lead wire is penetrated, the thin film portion 32a in the central portion is broken and the peripheral portion is broken. The taper portion 32b of the portion remains and is deformed in the direction opposite to the insertion direction of the external connection lead wire. As a result, there is an effect of preventing the resin from entering the inside of the inverter lighting device 2 when the waterproof resin 4 is filled. Further, since the thin film portion 32a of 0.5 mm or less remains in the central portion of the through hole 32 which is not penetrated and does not penetrate the external connection lead wire, the inside of the inverter lighting device is filled with the waterproof resin. It has the effect of preventing the invasion of resin into the.

Next, the protrusion 33 of the side plate 3 will be described. As shown in FIG. 8, when the inverter lighting device main body 2 is housed in the tubular case 1 and the side plates 3 are inserted from the open portions at both ends of the tubular case 1, the taper portion provided on the peripheral portion of the side plate 3 is inserted. 31 is deformed and stored in the cylindrical case 1. When the side plate 3 hits the side plate positioning protrusion 12 provided on the inner surface of the tubular case 1, the side plate 3 is positioned. At this time, the projection 33 for fixing the lighting device, which is provided near the lower end of the inner side surface of the side plate 3, is dimensioned so as to have a positional relationship of pressing the bottom plate 22 of the inverter lighting device main body 2. The lid 23
Unlike the conventional case, an iron plate spring for holding the inverter lighting device body 2 is not provided between the inverter lighting device body 2 and the inner surface of the tubular case 1. However, the inverter lighting device body 2 does not float up and the iron plate spring Is unnecessary.

As described above, since the side plate 3 having the tapered portion 31 at the peripheral portion, the through hole 32 at the central portion, and the protrusion 33 near the lower end of the inner side surface can be integrally molded by a plastic molded product, the manufacturing cost can be reduced. Will be cheap.

FIG. 9 shows a detailed structure of the lighting device of this embodiment after the assembly is completed. The inverter lighting device body 2 is housed inside the cylindrical case 1, the side plates 3 are inserted into the openings at both ends of the case so that the bottom plate of the inverter lighting device body 2 is pressed by the protrusions 33, and the waterproof resin 4 is filled on the outside thereof. ing. The power supply side external connection lead wire 5 and the load side external connection lead wire 6 penetrate the side plate 3, and the periphery thereof is filled with the waterproof resin 4. FIG. 10 shows the appearance of the lighting device after completion.

By the way, as shown in FIG. 11, the external connection lead wires 5 and 6 have a gap between the core wire 71 and the outer skin opening portion 72, and the air inside the waterproof inverter lighting device passes through this gap. The outside air circulates. As described above, when the air circulates, the moist air from the outside of the lighting device may enter the inverter lighting device, impairing the waterproof performance. Therefore, the core wire 71 of the external connection lead wires 5 and 6
Is pre-soldered on the core wire 71 and the outer skin 7
A resin 73 for filling the gap is applied between the two.

As for the external connection lead wires 5 and 6, as shown in FIG. 12, the power supply side external connection lead wires 5a and 5b and the load side external connection lead wires 6a to 6d are collectively taken out from one side of the cylindrical case 1. It may be configured, or as shown in FIG.
The power supply side external connection lead wires 5a and 5b and some load side external connection lead wires 6a and 6b are taken out from one side of the cylindrical case 1, and the remaining load side external connection lead wires 6c and 6d are opposite to the cylindrical case 1. Alternatively, the power source side external connection lead wires 5a and 5b may be extended from one side of the cylindrical case 1 and the load side external connection lead wire 6a may be provided as shown in FIG.
It is also possible to adopt a configuration in which ~ 6d is taken out from the opposite side of the tubular case 1. Further, when the light control device 8 is used, as shown in FIG. 15, the power source side external connection lead wires 5a and 5b and the light control external connection lead wires 9a and 9b are taken out from one side of the cylindrical case 1 to load the load. It suffices that the side external connection lead wires 6a to 6d are extended from the opposite side of the cylindrical case 1. Of course, Figure 1
6, the power source side external connection lead wires 5a and 5b, the dimming external connection lead wires 9a and 9b, and a part of the load side external connection lead wires 6a and 6b are taken out from one side of the cylindrical case 1 and are left. The load side external connection lead wires 6c and 6d may be arranged to extend from the opposite side of the tubular case 1, and as shown in FIG. 17, all the external connection lead wires 5a, 5b and 9d.
A configuration may be adopted in which a, 9b, 6a to 6d are collectively taken out from one side of the cylindrical case 1. In order to enable any of the configurations of FIGS. 12 to 17, eight through holes 32 of the side plate 3 are provided on each side. Note that the load 10 shown in FIGS. 12 to 17 is assumed to be a fluorescent lamp, and some of the load side external connection lead wires 6a and 6b are filaments on one side of the fluorescent lamp and the remaining load side external connection lead wires 6c. , 6d are connected to the filament on the other side of the fluorescent lamp.

[0021]

According to the first aspect of the present invention, since the material of the side plate is only the plastic molded product, the cost of the side plate is about 1/10 of that of the conventional example, and the cost can be greatly reduced. Also, when the side plate is inserted into the tubular case and the side plate is positioned by the protrusions provided inside the tubular case, the side plate is positioned because the side plate is made of plastic and is harder than the conventional rubber side plate. Became easier.

According to the second aspect of the present invention, the taper provided on the peripheral portion of the side plate is inserted into the cylindrical case while being deformed inward, so that the friction between the inside of the cylindrical case and the side plate is reduced, and the insertion work is performed. Will be easier.

Further, according to the invention of claim 3, by fixing the bottom plate of the inverter lighting device by the lighting device fixing projection provided on the side plate, the inverter lighting device can be fixed as in the conventional case. The spring of the iron plate is no longer required, the material cost can be reduced, and the inverter lighting device body can be easily inserted into the cylindrical case, improving workability. As a result, productivity increased by about 25% compared to our company. Specifically, it was improved from 200 units / h in the past to 250 units / h.

Further, according to the invention of claim 4, since the through hole is provided with a thin portion which does not penetrate, there is an effect of preventing the resin from entering the inside of the inverter lighting device when the waterproof resin is filled.

Further, according to the invention of claim 5, since the through hole of the side plate is designed so that the structure for drawing out the external connection lead wire can be arbitrarily selected, the degree of freedom of wiring of the external connection lead wire is increased. There is.

According to the invention of claim 6, the air moistened from the outside of the lighting device enters into the inverter lighting device through the gap between the core wire of the external connection lead wire and the outer skin opening portion to impair the waterproof performance. It can be prevented.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a lighting device according to an embodiment of the present invention.

FIG. 2 is a perspective view of a tubular case and a side plate used in the lighting device according to the embodiment of the present invention.

FIG. 3 is a diagram showing a detailed configuration of an inverter lighting device used in the lighting device according to the embodiment of the present invention, (a)
Is a plan view, (b) is a side view, (c) is a plan view with a lid removed, and (d) is a front view.

FIG. 4 is a diagram showing a detailed configuration of a side plate used in the lighting device according to the embodiment of the present invention, in which (a) is a front view,
(B) is a side sectional view.

FIG. 5 is a cross-sectional view of a main part for explaining a preferred design example of a tapered portion of a side plate used in the lighting device according to the embodiment of the present invention.

FIG. 6 is an explanatory view showing various forms of through holes of a side plate used in the lighting device according to the embodiment of the present invention.

FIG. 7 is an explanatory diagram for explaining the action of the through hole of the side plate used in the lighting device according to the embodiment of the present invention.

FIG. 8 is an explanatory diagram for explaining the action of the lighting device fixing protrusion of the side plate used in the lighting device according to the embodiment of the present invention.

FIG. 9 is a partially cutaway plan view showing the detailed configuration of the lighting device according to the embodiment of the present invention.

10A and 10B are diagrams showing an external appearance of a lighting device according to an embodiment of the present invention, FIG. 10A is a plan view, and FIG. 10B is a side view.

FIG. 11 is a perspective view showing an end structure of a lead wire used in a lighting device according to another embodiment of the present invention.

FIG. 12 is an explanatory diagram showing a first wiring form of external connection lead wires in the lighting apparatus of the present invention.

FIG. 13 is an explanatory diagram showing a second wiring form of external connection lead wires in the lighting apparatus of the present invention.

FIG. 14 is an explanatory diagram showing a third wiring form of external connection lead wires in the lighting apparatus of the present invention.

FIG. 15 is an explanatory diagram showing a fourth wiring form of external connection lead wires in the lighting apparatus of the present invention.

FIG. 16 is an explanatory diagram showing a fifth wiring form of external connection lead wires in the lighting apparatus of the present invention.

FIG. 17 is an explanatory diagram showing a sixth wiring form of external connection lead wires in the lighting apparatus of the present invention.

FIG. 18 is a schematic configuration diagram of a conventional waterproof type electromagnetic lighting device.

FIG. 19 is a diagram showing a detailed configuration of a conventional waterproof type electromagnetic lighting device.

FIG. 20 is a schematic configuration diagram of a conventional waterproof type inverter lighting device.

FIG. 21 is a diagram showing a detailed configuration of a conventional waterproof type inverter lighting device.

22A and 22B are diagrams showing a detailed configuration of a side plate used in the lighting device of FIG. 21, wherein FIG. 22A is a front view and FIG.
It is sectional drawing about a line.

FIG. 23 is an explanatory diagram showing a problem of a conventional waterproof type inverter lighting device.

[Explanation of symbols]

1 tubular case 2 Inverter lighting device 3 side plates 4 waterproof resin 5 Power supply side external connection lead wire 6 Load side external connection lead wire

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yasushi Kambara             1048, Kadoma, Kadoma-shi, Osaka Matsushita Electric Works             Within the corporation (72) Inventor Kishimoto Inoue             1048, Kadoma, Kadoma-shi, Osaka Matsushita Electric Works             Within the corporation (72) Inventor Masato Taji             Ikeda Electric Co., Ltd. No. 404-1, Nishinosue, Himeji City, Hyogo Prefecture             Within the corporation (72) Inventor Takuya Sakai             Ikeda Electric Co., Ltd. No. 404-1, Nishinosue, Himeji City, Hyogo Prefecture             Within the corporation F term (reference) 3K014 BA01 DA05 EA04 NA01 NA04

Claims (6)

[Claims] 1. An inverter lighting device equipped with an external connection lead wire is housed in a cylindrical case, side plates made of a plastic molded product are mounted on both ends of the case, and external connection is made to a through hole provided in the side plate. An illuminating device having a waterproof function by passing a lead wire and filling the outside of this side plate with resin. 2. The illuminating device according to claim 1, wherein a taper portion is provided on a peripheral portion of the side plate for improving adhesion to the cylindrical case. 3. The lighting device according to claim 1, wherein the side plate is provided with a protrusion for fixing the inverter lighting device housed inside the cylindrical case. 4. The lighting device according to claim 1, wherein the side plate is provided with an unpenetrated thin-walled portion serving as a through hole for passing the external connection lead wire. 5. The through hole of the side plate has a first structure in which the power supply side external connection lead wire and the load side external connection lead wire are collectively discharged from one side of the cylindrical case, and the power supply side external connection lead wire and a part thereof. Of the load side external connection lead wire of one side of the tubular case and the remaining load side external connection lead wire of the other side of the tubular case, and the power source side external connection lead wire of the tubular case. A third configuration in which the external connection lead wire for the load side is output from one side and the external connection lead wire for the power supply side and the external connection lead wire for dimming are output from one side of the cylindrical case for the load side external connection lead wire The lighting device according to any one of claims 1 to 4, wherein any one of the fourth configuration in which the external connection lead wire is extended from the opposite side of the tubular case can be selected. 6. The core wire at both ends of the external connection lead wire is soldered, and a resin is applied to a boundary portion between the core wire and the outer skin opening portion to suppress air flow through the external connection lead wire. The lighting device according to any one of claims 1 to 5.