JPS6234420Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an electromagnetic device such as a ballast for a discharge lamp, in which at least one pair of coils wound around respective coil bobbins are fitted onto the same core at a distance from each other. When the coils are fitted, the relative positions of both coils can be easily and reliably positioned, and these coil terminals can be easily connected, and furthermore, it is possible to prevent substances such as adhesive on the iron core side from leaking onto the coil terminal side. Its features include cylindrical bobbin bodies 13, 14 and flanges 15, 16, 1 formed at both ends of the bobbin bodies 13, 14.
A pair of coil bobbins 5, 6 having 7, 18
In an electromagnetic device in which the coil bobbins 5 and 6 are fitted onto the iron core 4 at intervals from each other in the longitudinal direction of the iron core 4 and the coils 7 and 8 are wound around the bobbin bodies 13 and 14, respectively, the coil bobbins 5 and 6 face each other. side flange 1
6, 17, rectangular plate-shaped positioning parts 20, 21 are provided protruding in the longitudinal direction of the core 4 so as to follow the laminated end surfaces of the core 4, and the positioning parts 20, 21 16 and 17 so as to cover the laminated end faces of the core 4, and on the outside of the flanges 16 and 17 on opposite sides, and on the opposite side of the core 4 with respect to each positioning part 20 and 21. Terminal fitting holding parts 24 and 25 are provided protrudingly so that each holding part 2
4 and 25, terminal fittings 28 and 29 are fitted and held so as to be fitted and removed from the outside in the longitudinal direction of the iron core 4, and the terminal fittings 28 and 29 have their inner ends in the width direction overlapped with each other and soldered. and is held between the flanges 16 and 17 of the coil bobbins 5 and 6 on opposing sides.

Hereinafter, the present invention will be explained according to the illustrated embodiment. FIGS. 1 to 3 illustrate a leakage type discharge lamp ballast, and this ballast has a ballast main body 1 and a ballast main body 1 as shown in the figure. , and a cover 3 for tightening the stabilizer main body 1 together with the base 2. The cover 3 has an opening window 3a in its center. The ballast main body 1 includes an iron core 4, a pair of coil bobbins 5 and 6, a primary coil 7, a secondary coil 8, and the like. The iron core 4 is made up of a rod-shaped inner core 9 and a pair of E-shaped outer cores 10, which are assembled in a diagonal shape. , a gap 11 is formed in the center thereof, and the gap 11 is filled with an adhesive 12. The coil bobbins 5 and 6 are rectangular cylindrical bobbin bodies 1.
3, 14, and flanges 15, 16, 17, 18 formed at both ends of the bobbin bodies 13, 14, and are fitted onto the inner core 9 at intervals, and the primary coil is attached to the bobbin body 13. 7, secondary coils 8 are wound around the bobbin body 14, respectively. Tsuba 15,1
6, 17, 18 are rectangular plate-shaped positioning parts 19, 20, 2 whose lower surfaces are along the upper surface of the iron core 4.
1 and 22 protrude in the longitudinal direction of the iron core 4,
The protruding end surfaces of the positioning parts 20 and 21 on the opposing sides abut each other, and both cover the entire area of the upper surface of the inner core 9 between the coil bobbins 5 and 6 and the inner half of the upper surface of the outer core 10 in the width direction. There is. Note that the positioning units 19 and 22 do not play a positioning role. Further, on the outside of each collar portion 15, 16, 17, 18, terminal fitting holding portions 23, 24, 25, 26 are protrudingly provided above each positioning portion 19, 20, 21, 22. The parts 23, 24 and the holding parts 25, 26 are located at positions opposite to each other from the center in the width direction of the coil bobbins 5, 6.
U-shaped plate-shaped terminal fittings 27, 28, 29, and 30 are fitted and held in the terminals 24, 25, and 26, respectively, so as to project horizontally. Each terminal fitting 27,
28, 29, and 30, make a U-shaped incision and approximately
A terminal attachment portion a is formed by folding back 180 degrees, and a lead wire attachment portion b is formed into a circular opening. Terminal fitting 28 on the side where the coil bobbins 5 and 6 face each other,
29 are vertically shifted by the thickness of the plate, their inner ends in the width direction overlap each other, and the overlapped parts are soldered, and the terminal fittings 28, 29 and the iron core 4
The positioning sections 20 and 21 shield the space between the two. The coil terminal of the corresponding first coil 7 or second coil 8 is soldered to the terminal mounting portion a of each terminal fitting 27, 28, 29, 30.
A lead wire of an external circuit is soldered to the lead wire attachment portion b of 30.

According to the configuration of the above embodiment, when fitting the primary coil 7 and the secondary coil 8 to the iron core 4, the coil bobbins 5 and 6 around which the coils 7 and 8 are wound are fitted to the inner iron core 9. The protruding end surfaces of the positioning portions 20 and 21 may be butted against each other, and the relative positions of the primary coil 7 and the secondary coil 8 can be easily and reliably determined. Moreover, since the terminal fittings 28 and 29 on the opposing sides overlap each other at this time, the overlapping portions can then be simply soldered, and the coil terminals of the two can be easily connected. After the coil is fitted, the positioning parts 20 and 21 shield between the iron core 4 and the terminal fittings 28 and 29, so that the adhesive 12 filled in the gap 11 of the iron core 4 spreads between the terminal fittings 28 and 29.
There is no possibility that the adhesive 12 leaks to the side, and the adhesive 12 does not cause problems such as impairing the insulation properties of the terminal fittings 28 and 29.

According to the present invention, an iron core 4 is provided on the outside of the flanges 16 and 17 on opposite sides of each coil bobbin 5 and 6.
A rectangular plate-shaped positioning part 2 is placed along the stacked end face of the
0 and 21 protrude in the longitudinal direction of the core 4, and the positioning parts 20 and 21 are in contact with each other so as to cover the laminated end surface of the core 4 between the opposing flanges 16 and 17. When the coils 7 and 8 are fitted to the core 4, the relative positions of the pair of coils 7 and 8 can be easily and reliably positioned by the parts 20 and 21, and the positioning parts 20 and 21 are attached to the laminated end surface of the core 4. Therefore, the coil bobbins 5 and 6 can be easily fitted onto the iron core 4 without the positioning parts 20 and 21 wrapping each other or having their ends bent together. , 21 can be reliably abutted, and therefore the coil bobbins 5, 6 to 7, 8 can be reliably and easily assembled into the iron core 4.

Further, terminal fitting holding parts 24 and 2 are provided on the outside of the flanges 16 and 17 on the sides facing each other so as to be located on the opposite side of the iron core 4 with respect to each positioning part 20 and 21.
5 are provided in a protruding manner, and terminal fittings 28 and 29 are fitted and held in these respective holding parts 24 and 25 so as to be fitted and removed from the outside in the longitudinal direction of the iron core 4, and the terminal fittings 28 and 2
The inner ends of the coil bobbins 9 in the width direction are overlapped and soldered to each other, and are held between the flanges 16 and 17 on opposite sides of the coil bobbins 5 and 6. The terminals of both coils 7 and 8 can be easily connected by the metal fittings 28 and 29, and the terminal fittings 28 and 29 are connected to the holding part 2.
4, 25, and the terminal fittings 28, 29 are held in the holding parts 24, 25 by being held by the flanges 16, 17.
Since the movement of the terminal fittings 28 and 29 can be restricted so that they cannot be removed from the terminal 25, there is no risk that the terminal fittings 28 and 29 will rattle each other.
The soldered connection state of the terminal fittings 28 and 29 can be firmly maintained, and therefore the coils 7 and 8
The terminals can be connected reliably. Also, the collar portions 16 on the opposing sides of the coil bobbins 5 and 6,
The distance between the flanges 16 and 17 can be maintained constant by the contact between the positioning parts 20 and 21.
There is no risk that the terminal fittings 28, 29 will be pushed and bent by the flanges 16, 17 if the gap between them becomes too narrow, and the terminal fittings 28, 29 are effectively protected by the positioning parts 20, 21. It is possible to do so. Furthermore, since the positioning parts 20 and 21 are provided on both coil bobbins 5 and 6, the coil bobbins 5 and
6 can be made into the same shape, which is also advantageous in manufacturing the bobbins 5 and 6.

Furthermore, since the space between the iron core 4 and the terminal fittings 28, 29 can be shielded by the positioning portions 20, 21, the adhesive or other ingredients on the iron core 4 side will not leak onto the terminal fittings 28, 29 side, and therefore there will be no adverse effects such as the insulation of the coil terminals being impaired by the ingredients.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing one embodiment of the present invention;
The figure is a cross-sectional view taken along the line A--A in FIG. 1, and FIG. 3 is a cross-sectional view taken along the line B--B in FIG. 4... Iron core, 5, 6... Coil bobbin, 7, 8
... Coil, 16, 17 ... Flange, 20, 21 ...
...Positioning part, 28, 29...Terminal fitting.

Claims (1)

[Scope of utility model registration request] Cylindrical bobbin bodies 13 and 14 and the bobbin body 1
Flange portions 15, 16, 1 formed at both ends of 3, 14
A pair of coil bobbins 5, 6 having 7, 18
In an electromagnetic device in which the coil bobbins 5 and 6 are fitted onto the iron core 4 at intervals from each other in the longitudinal direction of the iron core 4 and the coils 7 and 8 are wound around the bobbin bodies 13 and 14, respectively, the coil bobbins 5 and 6 face each other. side flange 1
6, 17, rectangular plate-shaped positioning parts 20, 21 are provided protruding in the longitudinal direction of the core 4 so as to follow the laminated end surfaces of the core 4, and the positioning parts 20, 21 16 and 17 so as to cover the laminated end faces of the core 4, and on the outside of the flanges 16 and 17 on opposite sides, and on the opposite side of the core 4 with respect to each positioning part 20 and 21. Terminal fitting holding parts 24 and 25 are provided protrudingly so that each holding part 2
4 and 25, terminal fittings 28 and 29 are fitted and held so as to be fitted and removed from the outside in the longitudinal direction of the iron core 4, and the terminal fittings 28 and 29 have their inner ends in the width direction overlapped with each other and soldered. An electromagnetic device characterized in that the coil bobbins 5 and 6 are held between flanges 16 and 17 on opposing sides.