JPS6031231Y2 - stabilizer - Google Patents

Description

[Detailed description of the invention] This invention relates to a ballast that is used in conjunction with discharge lamp equipment.

Generally, in this type of ballast, a ballast element is constructed by combining a coil and an iron core, and this ballast element is housed in a case with a U-shaped cross section. It is integrated into the above case by tightening it.

The iron core of the ballast element generates minute vibrations when the coil is energized, but in the past, the vibrations of this iron core were transmitted to the top cover, which often caused the top cover to resonate and produce unpleasant noise. There was a problem.

Further, although the coil is provided with a terminal for energization, in the past, this terminal was exposed to the outside, which caused a problem in that a separate insulating protection cover was required.

Therefore, a flexible insulating tape is sometimes interposed between the top surface of the coil and the top cover to prevent the propagation of vibrations and to provide insulation protection for the terminals of the coil.However, in the past, It is difficult to check whether the insulating tape has been installed as specified during the assembly process or during the final process, and if an insulation test is performed afterwards, the test data may indicate that the insulating tape has been forgotten to be installed. are often discovered.

This idea was made with attention to these points, and its purpose is to determine whether or not insulating tape is incorporated.
To provide a ballast that can be easily checked during the assembly process or during the final process.

An embodiment of this invention will be described below with reference to FIGS. 1 to 3.

In FIG. 1, reference numeral 1 denotes a ballast element constructed by combining a coil 2 and an iron core 3, and the coil 2 is formed by winding a winding 5 around a bobbin 4.

As shown in FIG. 2, terminal blocks 6, 6 are integrally formed at the top of both ends of the bobbin 4, and terminals 7, 7 which are electrically connected to the winding 5 are provided on the upper surface of the terminal blocks 6, 6. , lead wires 8, 8 are connected to these terminals 7, 7 by soldering.

For example, polyester resin and nonwoven fabric are laminated to the upper surface of the coil 2 from one end to the other end, and the length is 0.8 m.
An insulating tape 9 having flexibility and heat resistance with a thickness of m or more is provided.

Both ends of this insulating tape 9 are bent into a crank shape and are in contact with the upper surface of the iron core 3 and are glued to the iron core 3, with both ends thereof extending from the side edges of the iron core 3.

Reference numeral 10 denotes a case formed by bending a metal plate into a substantially U-shape, and a pair of crimping tongues 11, 11 are integrally provided on both upper edges of the case 10, respectively.

Reference numeral 12 denotes a metal top lid, and raised pieces 13 on both sides of these lids.
．． 13, and has a bulge 14 in the center that bulges upward, and further extends from the bulge 14 to the upper lid 1.
A pair of beads 15, 15 are formed in a portion spanning one end edge of 2.

Therefore, the ballast element 1 is as shown in FIG.
The ballast element 1 is housed in a case 10, and a top cover 12 is attached to the upper surface of the ballast element 1.
13 is crimped to the case 10 by folding back the tongues 11, 11, thereby integrating the stabilizer element 1, the case 10, and the top cover 12.

Both ends of the insulating tape 9 are held between the upper surface of the iron core 3 and the upper cover 12, and both ends are held between the upper M12 of the rising piece 13.
, 13 and the inner surface of the case 10, and the terminals 7, 7 are covered with the insulating tape 9, and the lead wires 8, 8 are led out through the bead 15° 15 of the upper cover 12. There is.

According to such a configuration, a flexible insulating tape 9 is interposed between the iron core 3 and the top cover 12, so that vibrations of the iron core 3 are absorbed by the insulating tape 9 and transmitted to the top cover 12. Therefore, the upper lid 12 does not resonate and generate unpleasant noise, and a quiet state can always be obtained.

In addition, the terminals 7, 7 are covered with the insulating tape 9, so that the insulating tape 9 can be used to reliably protect the terminals 7, 7 from insulation without requiring a separate insulation protection cover. can.

The insulating tape 9 is covered by the top cover 12, but its terminal is slightly exposed to the outside, so that it is easy to know from the outside whether the insulating tape 9 is installed during the assembly process or at the final process. This has the advantage of preventing mistakes such as overlooking the insulating tape 9.

In the above embodiment, both ends of the insulating tape 9 are exposed to the outside, but there is no problem even if only one end is exposed.

In addition, as shown in FIG. 4, the lower surface of the iron core 3 and the case 10
Tape that also has flexibility between? a, 9a may be provided, and in this case, the vibration of the iron core 3 is caused by case 1.
There is an advantage that it can also prevent the signal from being transmitted to 0.

Note that the thickness of the insulating tape may be determined as necessary.

As explained above, according to this invention, a flexible insulating tape is placed on the top surface of the coil to cover the terminals of the coil, and both ends of the insulating tape are connected to the top surface of the core and the top cover. By clamping the coil between the terminals and exposing at least one terminal to the outside of the top cover, it is possible to suppress the vibration of the core from being transmitted to the top cover and prevent the generation of noise. This has the effect that protection can be reliably extended using the insulating tape, and it is also possible to easily check whether or not the insulating tape has been installed, and to reliably prevent forgetting to install it.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing an embodiment of this invention;
FIG. 2 is a perspective view of the ballast element in the same embodiment;
FIG. 3 is a sectional view of the same embodiment in an assembled state, and FIG. 4 is a sectional view of another embodiment of this invention in an assembled state. 1... Ballast element, 2... Coil, 3... Iron core, 7... Terminal, 9...
...Insulating tape, 10...Case, 12.
...Top lid.

Claims (1)

[Scope of utility model registration request] A ballast element consisting of a combination of a coil and an iron core is housed in a case, a top cover is attached to the top surface of the ballast element, and this top cover is crimped to the case, and the top surface of the coil has flexibility. an insulating tape having a diameter of 100 nm is provided to cover the terminal of the coil, and both ends of the insulating tape are sandwiched between the top surface of the core and the top cover, and at least one end thereof is exposed to the outside of the top cover. A stabilizer characterized by: