JP2001176736A - Electromagnetic device discharge lamp lighting device and illumination tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electromagnetic device 11 which can be easily disassembled after assembling by improving a manufacture efficiency. SOLUTION: After an electromagnetic device main unit 12 is contained in a case 13 through an aperture 44 of the case 13 and a powder material 14 for filling which has insulation property is filled, the aperture 44 of the case 13 is closed by an covering unit 42. Manufacturing efficiency can be improved, because the use of the powder material 14 for filling does not require hardening process, which needs more time as compared to a case of using heat hardening resin as filling material. Even after assembling of the electromagnetic device 11, the case 13, the electromagnetic device main unit 12 and the filling material 14 can be disassembled easily and can cope with recycling.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic device in which a main body of an electromagnetic device is housed in a case and filled with a filler, a discharge lamp lighting device using the electromagnetic device, and an illumination using the discharge lamp lighting device. Equipment related.

[0002]

2. Description of the Related Art Conventionally, for example, in an electromagnetic device used for a discharge lamp lighting device or the like, an electromagnetic device main body is formed by combining a coil wound around a coil bobbin with an iron core. For the purpose of improvement and insulation, the electromagnetic device main body is housed in the case, and a gap between the case and the electromagnetic device main body is filled with an insulating filler.

As a filler, a thermosetting resin in a solution state at room temperature is used. The thermosetting resin in a solution state is injected into a case and filled between the case and an electromagnetic device body in the case. In addition, the thermosetting resin is cured.

[0004]

However, in a conventional electromagnetic device, since a thermosetting resin is used as a filler, a step of curing the thermosetting resin filled in the case is required. It takes a long time for the thermosetting resin to cure, and there is a problem that manufacturing efficiency is reduced. Further, once the thermosetting resin is cured, the inside of the electromagnetic device body covered with the thermosetting resin cannot be easily taken out, and there is a problem that the recycling of parts is hindered.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and it is possible to improve manufacturing efficiency and to easily disassemble even after assembling, an electromagnetic device, a discharge lamp lighting device using the electromagnetic device, and An object of the present invention is to provide a lighting fixture using the discharge lamp lighting device.

[0006]

According to a first aspect of the present invention, there is provided an electromagnetic apparatus comprising: an electromagnetic apparatus main body;
A case for accommodating the electromagnetic device main body; and an insulating powdery filler filled in the case in which the electromagnetic device main body is stored.

[0007] By filling an insulating powdery material into the case in which the main body of the electromagnetic device is housed, a time-consuming curing step is required as in the case of using a thermosetting resin as the filler. Is unnecessary, the production efficiency is improved,
In addition, the case, the electromagnetic device main body and the filler can be easily disassembled even after assembly, so that the case can be recycled.

According to a second aspect of the present invention, in the electromagnetic device of the first aspect, the case has a case main body having an opening, a lid removably fitted to the opening of the case main body, and a case main body. And a sealing member interposed between the cover and the lid.

[0009] A sealing material is interposed between an opening of the case main body for storing the electromagnetic device main body and filling the filler, and a lid fitted into the opening, thereby opening the case main body. This prevents the powdery filler from leaking from between the part and the lid.

According to a third aspect of the present invention, there is provided the electromagnetic device according to the first or second aspect, wherein the insertion hole provided in the case, the lead wire inserted through the insertion hole and connected to the electromagnetic device main body, and the case. It has a bushing interposed between the insertion hole and the lead wire.

[0011] By interposing a bushing between the insertion hole of the case and the lead wire which is inserted through the insertion hole and connected to the main body of the electromagnetic device, the powdery filler is discharged from the lead wire drawing portion of the case. Prevent leaks.

According to a fourth aspect of the present invention, there is provided a discharge lamp lighting device including the electromagnetic device according to any one of the first to third aspects.

[0013] The provision of the electromagnetic device according to any one of claims 1 to 3 makes it possible to easily cope with recycling.

According to a fifth aspect of the present invention, there is provided a lighting fixture comprising: the discharge lamp lighting device according to the fourth aspect; and a fixture main body on which a discharge lamp to be lighted by the discharge lamp lighting device is mounted.

The provision of the discharge lamp lighting device according to claim 4 makes it possible to easily cope with recycling.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view of an electromagnetic device, FIG. 2A is a plan view of a coil bobbin, FIG. 2B is a side view of a coil bobbin around which a coil is wound, and FIG. It is a perspective view of the lighting fixture used.

In FIG. 1, reference numeral 11 denotes an electromagnetic device. The electromagnetic device 11 includes an electromagnetic device main body 12, a case 13, and a filler 14.
And so on.

The electromagnetic device body 12 has a coil 21, a coil bobbin 22, an iron core 23, and the like.

As shown in FIGS. 1 and 2, the coil bobbin 22 is made of an insulating resin and has an iron core insertion hole 25 at the center.
The body 21 has a cylindrical body 26, and annular flanges 27 are formed on both sides of the body 26. The coil 21 is wound between the outer surface of the body 26 and the flanges 27 on both sides. A turning coil winding portion 28 is formed.

An iron core fitting portion 29 for fitting with the iron core 23 is formed in the middle region of the coil bobbin 22, and a thick portion 30 is formed on each flange portion 27 at one end of the iron core fitting portion 29. A protruding portion 31 is formed at the end face of the thick portion 30 and at a position away from the inside facing the coil winding portion 28 of the flange portion 27 and shifted to the outside. On the other end side of the iron core fitting portion 29, a terminal block 32 is formed on each flange portion 27, a plurality of terminals 33 are attached to the terminal block 32 in parallel, and the windings of the coil 21 are connected to these terminals 33. And the lead wire 34 is connected. A cover 35 that covers the coil 21 is attached between the two terminal blocks 32.

The iron core 23 is made of, for example, an E-shaped iron
Each of the cores 37, 38 is a laminated core formed by laminating a plurality of core plates, and is an E-shaped core.
The central leg of the E-shaped iron body 37 has an I-shaped central leg and a side leg disposed on both sides of the coil bobbin 22. The iron core bodies 38 are combined to form a closed magnetic circuit.

The case 13 has a case body 41 and a lid 42. The case main body 41 has a cylindrical main body 43.
An opening 44 is formed at one end of the main body 43, and an end plate 45 is attached to the other end of the main body 43 in a closed state. A plurality of attachments 46 are attached to the case body 41.

The lid 42 has an end plate 47 fitted into the opening 44 of the case body 41, and an edge 48 joined from the periphery of the end plate 47 to the inner surface of the case body 41. Are bent. A sealing material 49 made of, for example, rubber or silicone is interposed between the edge portion 48 of the lid 42 and the case main body 41. A plurality of screws 50 that are inserted from the outer surface side to the inner surface side of the case main body 41 are screwed to the edge portion 48 of the lid 42, and each of these screws 50
The case main body 41 and the lid body 42 are fixed by tightening with 50.

An insertion hole 51 is formed in the lid 42, and a bushing 52 made of rubber or silicone, for example, into which the lead wire 34 is inserted is fitted in the insertion hole 51 in a sealed state.

The filler 14 is a powder such as glass or silica stone which has an insulating property and a high thermal conductivity.
It is filled between the case 13 and the electromagnetic device body 12.
The size of the powder of the filler 14 is preferably small so that an air layer between the powders is reduced in consideration of insulation properties and thermal conductivity.

Then, in order to assemble the electromagnetic device 11, the electromagnetic device 11 is inserted into the case main body 41 from the opening 44 on the side opposite to the terminal block 32 of the electromagnetic device main body 12, that is, with the protrusion 31 side of the coil bobbin 22 as a head. The electromagnetic device body 12 is housed. In the electromagnetic device main body 12 housed in the case main body 41, since the protrusion 31 abuts against the end plate 45 of the case main body 41, there is no protrusion 31 and a flange portion.
As compared with the case where 27 abuts on the end plate 45, the coil 21 and the end plate 45
Distance can be kept large.

With the opening 44 of the case body 41 facing upward and the lead wire 34 pulled out from the opening 44,
The powdered filler 14 is poured into the 41, and the filler 14 is filled between the case main body 41 and the electromagnetic device main body 12. The filling material 14 completely buries the electromagnetic device body 12 so that the opening 44
Fill to the vicinity of.

The cover 42 is fitted into the opening 44 of the case body 41, and the filler 14 is pressed into the case body 41 with the cover 42. At this time, the lead wire 34 is previously passed through the bushing 52 attached to the insertion hole 51 of the lid 42.

A sealing material 49 is press-fitted between the case body 41 and the edge 48 of the lid 42, and a plurality of screws 50 are inserted from the outer surface side to the inner surface side of the case body 41 so that the edge 48 of the lid 42 is And the case body 41 and the lid 42 are fixed by tightening with the screws 50.

When the electromagnetic device 11 is energized, the heat generated by the electromagnetic device main body 12 is reduced by the powdery filler 14.
The heat is transmitted to the case 13 through the case 13 and is radiated from the case 13 to the outside.

In order to disassemble the electromagnetic device 11, each screw
By removing the cover 50 and removing the lid 42 from the opening 44 of the case main body 41, the powdered filler 14 flows out through the opening 44, and the electromagnetic device main body 12 is taken out of the case main body 41.

As described above, the case 13 in which the electromagnetic device main body 12 is housed is filled with the powdery filler 14 having an insulating property, so that the time is reduced as in the case where a thermosetting resin is used as the filler. Such a hardening step is unnecessary, and the manufacturing efficiency can be improved. In addition, the case 13, the electromagnetic device body 12, and the filler 14 can be easily disassembled even after the assembling, and the recycling can be easily performed.

Further, a sealing material 49 is interposed between the opening 44 of the case main body 41 for storing the electromagnetic device main body 12 and filling the filling material 14, and the lid 42 fitted into the opening 44. Therefore, it is possible to prevent the powdery filler 14 from leaking from between the opening 44 of the case body 41 and the lid 42.

Further, the insertion hole 51 of the case 13 and the insertion hole
Since the bushing 52 is interposed between the lead wire 51 and the lead wire 34 connected to the electromagnetic device main body 12, the leakage of the powdery filler 14 from the lead wire lead-out portion of the case 13 can be prevented.

In the electromagnetic device main body 12 housed in the case main body 41, the end plate 45 of the case main body 41 is attached to the coil bobbin 22.
Is provided, the gap between the coil 21 and the end plate 45 is kept large, the gap can be filled with the filler 14, and insulation can be ensured.

Further, since the projection 31 is provided on the end face of the thick portion 30 and at a position separated from the inside facing the coil winding portion 28 of the flange portion 27 and shifted to the outside, the projection 31 is moved to the coil winding portion 28. Even if the flanges 27 on both sides are displaced so that they fall down inside each other when the coil 21 is wound, it is possible to prevent the protrusion 31 from entering the winding area of the coil 21 and hindering the winding.

The electromagnetic device 11 configured as described above is similar to that shown in FIG.
As shown in the figure, the discharge lighting device used for the lighting fixture 61
It can be used as 62 components. This lighting fixture
Reference numeral 61 denotes, for example, a street light, which has a fixture main body 63 attached to a pole (not shown) or the like, and inside the fixture main body 63, a discharge lamp lighting device 62, and a lead wire 64 connected to the discharge lamp lighting device 62. A lamp socket 65 connected thereto, a high-intensity discharge lamp (HID lamp) 66 as a discharge lamp connected to the lamp socket 65, and the like are arranged.
A globe 68 having a light projecting property is attached to an opening 67 which is opened below the high-intensity discharge lamp 66 on the lower surface of the lamp.

Since the lighting fixture 61 includes the discharge lamp lighting device 62, the lighting fixture 61 can easily cope with recycling.

When a power factor improving capacitor and a fuse are combined with the electromagnetic device body 12,
The case 13 houses the electromagnetic device body 12, the power factor improving capacitor, the fuse, and the like.
Is filled, the electromagnetic device 11 can be configured.

[0041]

According to the first aspect of the present invention, the case in which the main body of the electromagnetic device is housed is filled with the insulating powdery filler, so that the thermosetting resin is used as the filler. This eliminates the need for a time-consuming curing step as in the case where it is necessary to improve the production efficiency. In addition, the case, the electromagnetic device main body, and the filler can be easily disassembled even after assembly, and can be easily recycled.

According to the electromagnetic device of the second aspect, in addition to the effect of the electromagnetic device of the first aspect, an opening of the case main body for accommodating the main body of the electromagnetic device and filling the filler is provided. Since the sealing material is interposed between the lid and the fitting lid, it is possible to prevent the powdery filler from leaking from between the opening of the case body and the lid.

According to the electromagnetic device of the third aspect, in addition to the effects of the electromagnetic device of the first or second aspect, the insertion hole of the case and the lead wire inserted through the insertion hole and connected to the electromagnetic device main body. Since the bushing is interposed between the case and the lead wire, the powdery filler can be prevented from leaking from the lead wire lead-out portion of the case.

According to the discharge lamp lighting device of the fourth aspect,
Since the electromagnetic device according to any one of claims 1 to 3 is provided, it is possible to easily cope with recycling.

According to the lighting apparatus of the fifth aspect, since the discharge lamp lighting apparatus of the fourth aspect is provided, it is possible to easily cope with recycling.

[Brief description of the drawings]

FIG. 1 is a sectional view of an electromagnetic device according to an embodiment of the present invention.

2A and 2B show a coil bobbin of the electromagnetic coil, in which FIG. 2A is a plan view of the coil bobbin, and FIG. 2B is a side view of the coil bobbin around which the coil is wound.

FIG. 3 is a perspective view of a lighting apparatus using the electromagnetic device in a discharge lamp lighting device.

[Explanation of symbols]

 11 Electromagnetic device 12 Electromagnetic device body 13 Case 14 Filler 34 Lead wire 41 Case body 42 Lid 44 Opening 49 Sealing material 51 Insertion hole 52 Bushing 61 Lighting fixture 62 Discharge lamp lighting device 63 Instrument body 66 High brightness as discharge lamp Discharge lamp

Claims (5)

[Claims] An electromagnetic device main body; a case accommodating the electromagnetic device main body, at least a part of which can be opened and closed; and an insulating powdery filler filled in the case housing the electromagnetic device main body. Electromagnetic equipment characterized by comprising; 2. A case, comprising: a case body having an opening;
2. The electromagnetic device according to claim 1, further comprising: a lid removably fitted to the opening of the case body; and a sealing material interposed between the case body and the lid. 3. An insertion hole provided in the case, a lead wire inserted through the insertion hole and connected to the electromagnetic device main body, and a bushing interposed between the insertion hole of the case and the lead wire. The electromagnetic device according to claim 1, wherein: 4. A discharge lamp lighting device comprising the electromagnetic device according to claim 1. 5. A lighting fixture, comprising: the discharge lamp lighting device according to claim 4; and a fixture main body to which a discharge lamp to be lighted by the discharge lamp lighting device is mounted.