JPH0526728Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] This invention relates to an electromagnetic device applied to a discharge lamp ballast of a discharge lamp lighting device, etc.

[Background technology]

FIGS. 6 and 7 show conventional discharge lamp ballasts. That is, 50 is a stabilizer, and 51 is a mounting surface of the instrument body. In the stabilizer 50, a main body 52 is placed on a base 53, a cap 54 is placed on the main body 52, and a caulking piece 54a at the lower end of the cap 54 is attached to the base 53.
Secure by caulking. The main body 52 is made up of a coil frame 56 wound with a coil 55 mounted on an iron core 57.The coil 55 is inserted into the central recess 53a of the base 53, the iron core 57 is placed on both sides 53a of the base 53, and the coil frame 56 A coil terminal 58 is provided on the upper surface side. Reference numeral 59 indicates a coil end pulled out from a slit 61 in a collar 60 of the coil frame 56, and 62 indicates a screw for attaching the base 53 to the mounting surface 51.

However, this discharge lamp ballast has a main body 52.
It is troublesome to position the main body 52 on the base 53.
The problem was that it was not easy to fix the base 53 to the base 53, and therefore the assembly was difficult.

On the other hand, another conventional example, which is easy to assemble and allows the main body to be easily positioned on the base, is shown in FIGS. 1 and 2. That is, this discharge lamp ballast consists of a base 1, a main body 2, and a cap 3. The base 1 has the same shape as the base 53 shown in FIGS. 6 and 7, except that coil frame positioning openings 4 and 5 are formed at predetermined positions as shown in FIG. In addition, the main body 2 is a plastic coil frame 6.
The base 1 side of the collar 7 is extended to engage the coil frame positioning openings 4 and 5, and the base 1
6th except that it is configured to protrude more through the hole.
It has the same configuration as the main body 52 shown in FIG. 7 and FIG. The cap 3 has the same shape as the cap 54 shown in FIGS. 6 and 7 and covers the main body 2, and the caulking piece 8 is caulked to the base 1 to fix the main body 2. Other parts common to FIGS. 6 and 7 are given the same reference numerals.

With this configuration, the engagement between the flange 7 and the coil frame positioning openings 4 and 5 makes it extremely easy to position the main body 2 on the base 1, making it easy to assemble the discharge lamp ballast. Further, when the base 1 is attached to the mounting surface 9 with the screws 10, the collar 7 comes into contact with the mounting surface 9, so that the base 1 is fixed to the mounting surface 9 in a floating state as shown in FIG. Therefore, compared to the conventional case in which the base 53 is directly attached to the mounting surface 51 with screws 62, the vibrations during operation of the discharge lamp ballast are absorbed by the plastic collar 7, so the vibrations are Noise is not transmitted to the main body and can be prevented from being reduced. Further, there is no need for a vibration absorbing sheet between the base 53 and the mounting surface 51 of the discharge lamp ballast, which was considered as a conventional vibration prevention means, and therefore manufacturing is easy and costs are not increased.

However, in this other conventional example, the vibration of the base 1 is transmitted to the mounting surface 9 via the screw 10, so that the vibration prevention effect is not sufficient. Further, since the coil terminal 58 is provided on the upper surface of the main body 2 away from the mounting surface 9, there is a drawback that it is not easy to route the electric wires.

[Purpose of invention]

The purpose of this invention is to facilitate assembly by allowing the main body to be easily positioned on the base, to more effectively prevent vibrations from being transmitted to the mounting surface, and to provide coil terminals on the mounting surface. The objective is to provide an electromagnetic device that can.

[Disclosure of invention]

A main body 11 having a coil frame 16 with a coil 17 wound between at least a pair of ribs 18a to 18d, and an iron core 12 to which the coil frame 16 is attached;
A base 22 having at least a pair of coil frame positioning openings 23 at both ends and to which the main body 11 is fixed.
A part of the flanges 18a to 18d extend so as to penetrate through the inner end of the coil frame positioning opening 23 in the axial direction of the coil frame 16 so as to be able to engage therewith, and A pair of attachment portions 20 that penetrate through the outer end opposite to the inner end of the opening 23 so as to be engageable with each other are attached to the coil frame 1.
6, provided at both ends of the coil frame 16 in the axial direction of the collars 18a to 18d, and further between the collars 18a to 18d and the mounting portion 20 at a position facing the coil frame positioning opening 23. The coil frame 16 is provided with a coil terminal 19.

According to the configuration of this invention, a part of the brim and the mounting portion of the main body can be positioned in the coil frame positioning opening of the base, so that the main body can be easily positioned on the base and assembly is facilitated. In addition, since the main body is fixed to the base and the mounting part provided on the coil frame of the main body is attached to the mounting surface through the coil frame positioning opening in the base, the effect of preventing equipment noise can be further increased. Since it is located between the collar and the mounting part, insulation can be ensured, and since it is provided on the mounting surface side, it is easy to route the wires.

Embodiment An embodiment of this invention will be described based on FIGS. 3 to 5. That is, this electromagnetic device is an embodiment of a leakage transformer type discharge lamp ballast, and the main body 11 is a plastic coil frame having two coil winding parts 14 and 15 on the middle leg 13 of an iron core 12. 16 and each coil winding part 1
4 and 15 are wound with a coil 17, and the coil winding portions 14 and 15 are formed by collars 18a to 18d. The base mounting side of the collars 18a to 18d is formed to be longer by a predetermined dimension, and the collar 18a for coil winding is formed on the base mounting side of the coil frame 16.
A coil terminal 19 is provided on the outside of the coil terminal 19, and a mounting portion 20 is attached to the opposite side of the coil terminal 19 from the collars 18a and 18d, that is, at both ends of the coil frame 16.
A mounting hole 21 is formed in the mounting portion 20 so as to protrude at the same height as the mounting hole 18d. On the other hand, base 22 is brim 18
Dimensions between b and 18c, one side of the mounting part 20 and the brim 1
8a and the other side of the mounting part 20 and the collar 18
Coil frame positioning openings 23 corresponding to the dimensions between d are formed, and the core 12 of the main body 11 is placed on both sides 22a of the base 22, and the center recess 22b is formed.
When the coil 17 is positioned, the flanges 18a to 18d of the coil frame 16 and the mounting portion 20 engage with the edge of the coil frame positioning opening 23, protrude from the base 22, and the mounting portion 20 also protrudes at the same height. do. Reference numeral 24 denotes a cap, and caulking pieces (not shown) provided at the upper ends of both side pieces 22c of the base 22 are connected to locking pieces (not shown) on both sides of the cap 24.
The main body 11 is held and fixed to both sides 22a of the base 22 by pressing and fixing the cap 24 by caulking. 25 is the coil terminal and brim 1
It is connected to the coil terminal 19 through the slits 26 of 8a to 18d.

The base 22 is placed on the mounting surface 9 (FIG. 1). In this case, the flanges 18a to 18d and the mounting portion 20 come into contact with the mounting surface 9, causing the base 22 to float. Then, screws (not shown) are passed through the mounting portion 20 to attach it to the mounting surface 9.

With this configuration, the discharge lamp ballast is attached to the mounting surface 9 entirely through the coil frame 16, so that equipment noise can be further effectively prevented. In addition, the collars 18a to 18d are the openings 2 for positioning the coil frame.
3, the coil terminal 19 and the base 22
Further, the insulation distance between the coil terminal 19 and the mounting surface 9 is increased, which increases safety, and since the coil terminal 19 is on the mounting surface side, it becomes easier to route the electric wire connected to the coil terminal 19.

Note that fixing the main body 11 to the base 22 is not limited to the cap 24, but any other fixing means can be used.

[Effect of idea]

According to this invention, a part of the brim and the mounting portion of the main body can be positioned in the coil frame positioning opening of the base, so that the main body can be easily positioned on the base and assembly is facilitated. In addition, since the main body is fixed to the base and the mounting part provided on the coil frame of the main body is attached to the mounting surface through the coil frame positioning opening in the base, the effect of preventing equipment noise can be further increased. Since it is located between the collar and the mounting part in the interior, insulation can be ensured, and since it is provided on the mounting surface side, it has the effect of making it easier to route the electric wire.

[Brief explanation of the drawing]

Fig. 1 is a side view of another conventional example, Fig. 2 is a bottom view thereof, Fig. 3 is a perspective view of an embodiment of the invention seen from the back, Fig. 4 is a central sectional view thereof, and Fig. 5. 6 is a side view of the conventional example, and FIG. 7 is a front view thereof. 11...Body, 12...Iron core, 16...Coil frame, 17...Coil, 18a-18d...Brim,
19...Coil terminal, 20...Mounting part, 22...
Base, 23...Opening for positioning the coil frame.

Claims (1)

[Scope of utility model registration request] A main body 11 having a coil frame 16 with a coil 17 wound between at least a pair of ribs 18a to 18d, and an iron core 12 to which the coil frame 16 is attached;
A base 22 having at least a pair of coil frame positioning openings 23 at both ends and to which the main body 11 is fixed.
A part of the flanges 18a to 18d extend so as to penetrate through the inner end of the coil frame positioning opening 23 in the axial direction of the coil frame 16 so as to be able to engage therewith, and A pair of attachment portions 20 that penetrate through the outer end opposite to the inner end of the opening 23 so as to be engageable with each other are attached to the coil frame 1.
6, provided at both ends of the coil frame 16 in the axial direction of the collars 18a to 18d, and further between the collars 18a to 18d and the mounting portion 20 at a position facing the coil frame positioning opening 23. An electromagnetic device characterized in that a coil terminal 19 is provided on the coil frame 16.