JPS6095906A - Structure of core for stabilizer - Google Patents

Abstract

PURPOSE:To enable to favorably use the titled core for a fluorescent lamp by method wherein the vibration generating from the magnetic flux leaked from a gap located at the coupled part of a U-shaped core or the end play of vertical part of a T-shaped core is prevented. CONSTITUTION:A stabilizer 1 consists of a core 2, whereon a silicon steel plate is laminated, a core 3 and the like. Said core 2 is formed in U-shaped form, and it contains a coupling part 5 with which a pair of left and right leg parts 6 and 7 and both leg parts are coupled. The surface 12 having recesses and projections is formed on the inner surface of the clearance-formed end part of the core 2. On the other hand, the core 3 is formed in T-shaped form, and a surface 13 having recesses and protrusions is formed at the end part of the extended part of the core 3 corresponding to the surface 12 having recesses and projections. When the core 2 is going to be jointed to the core 3, the surfaces 12 and 13 are engaged each other. One more junction part located at the part between the leg part of the core 2 and the extended part 8 of the core 3 has the constitution same as above. The generation of noise in a case 52 due to the leakage flux from the junction part can be reduced by having an interlocked junction wherein the junction part of the cores 2 and 3 are overlapped alternately.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention can be advantageously implemented in a ballast for, for example, a fluorescent lamp.

Countermeasure technology Ballasts for fluorescent lamps and other devices require high voltage at no load to start discharge, and also require large series impedance to stabilize the discharge flow. A leaky transformer with an iron core structure is used in which the secondary winding is separated on the iron core and a gap is provided to facilitate the generation of leakage flux. A typical prior art example of such a ballast is shown in FIG.

This ballast 1 includes an iron core 2 made of laminated silicon steel, an iron core 3, and a coil 4. The iron core 2 has a U-shape and includes a pair of left and right ribs 6, 7 and a connecting portion 5 that connects a pair of left and right ribs 6, 7 in the opposite direction. The canthus Ihi 3 has an I-shaped opening, and includes an extending portion 8 and a vertical portion 9 extending from the extending portion 8 to the seat 1v.

The connecting part 5 of the iron core 2 and the free end 10 of the vertical d99 of the iron core 3 have leaking wax 9e open + waste 11 filling 1 + V.
The legs 6 and 7 of the iron core 2 are joined to both ends of the extension part 8 of the iron core 3, and the joint surfaces in the form of a thousand letters are butted against each other at this joining. It is. Therefore, small gaps 5o and 51 are formed at this joint. Therefore, #i east flows in the direction indicated by arrows 60 and 61, and magnetic flux leaks from the 11υ ash 50.51 to the outside of the iron core as shown in the second example. The magnetic flux 81d that holds the ballast 52 and the fluorescent lamp main body 53 are vibrated by the suction force, so that a light beam is generated. Furthermore, the joint part is the door 1 of the ballast 1.
Since the current is 1+L·l'j, the leakage magnetic flux excites magnetic materials such as iron plates near the ballast, causing noise.

Also, while the magnetic flux passes through the gap 11 by JJ■, a' (center 2
A magnetic attraction and repulsion force A is generated between 3 degrees. This attraction/repulsion force A acts on the intermediate part between points P, l, and P2 of the iron core 2, causing the iron core 2 to shake! Make it IIIJ. This vibration is transmitted to the outside of the ballast l and generates noise.

FIG. 3 is a perspective view of another prior art, and the fourth problem is! I
This is a view of the minute J needle in Figure S3. In this prior art, a protrusion 70 protruding toward the front near the center of the connecting portion 5 of the iron core 2
is accomplished. This sudden 7M≦700i Chichishin 3 and a half! t
What is the same surface 72 that faces the opposite surface 111] 71 formed at the free end of the i section 9? Dowels like this %'61
When the substitute cores 2 and 3 meet by Kmm so that they are perpendicular to the Z position, the magnetic flux of the iron cores 2 and 3 due to the leakage flux generated from the gap 11 -A1! jL A pulling force A acts in a vertical direction of 1 μ on two axes. The IP of the fluorescent lamp is in the Z-axis direction, and although vibrations are relatively prevented by speaking to the partner, the IP of the IP in the direction of the Z-axis is "Depending on the partner, the eyelid cut is Therefore, large vibrations occur in the 4er where the 111 magnetic attraction and repulsion force A acts on the Z-axis force 1i3JK subvi, causing noise.

Purpose The purpose of the present invention is to solve the above-mentioned technical problem and to manufacture an iron core for a leakage pressurizer that prevents the generation of noise as much as possible. It includes an iron core 3 and a coil 4. The iron core 2 has a UT shape, and has a pair of left and right tfts.
(i, ? and its I+1I111111 i issue S6
, 7. The iron core 3 has an 'r-shape, and includes an extending portion 1 8 and an extending portion 8 having a vertical cut 4 and a cutting straight capital 9. Connecting portion 5 of iron core 2 and “Il” of iron core 3:
吋1! A gap 11 is formed between i9 and the free end lO in which leakage magnetic flux occurs. It is housed in a ballast case 52 with two or three iron cores, and installed in a fluorescent lamp body 53.

FIG. 6 is an enlarged bottom view of the v$5 diagram. An uneven surface 12 is formed on the inside of the free flow section of the +4il1 section 6 of the iron core 2...''Vc. On the other hand, an uneven surface 13 corresponding to the above-mentioned uneven surface 12 is also provided at the end of the outer surface 1j158 of the iron core 3.
be celebrated. When the iron core 2 is fitted to the iron core 3 by 1x, the uneven surfaces 12 and 13 mesh with each other. Another joint, namely the joint between the leg 7 of the core 2 and a portion 111 of the extension 8 of the core 3, also has a similar groove configuration.

In this way, the joints between the iron core 2 and the iron core 3 are made into interlocking joints in which the iron cores 2 and 3 are alternately different, so that the magnetic flux path is formed inside the iron core as shown by the arrow C as shown in Figure 5.
As a result, the flux from the joint is reduced, and therefore the noise generated by the paper cutting of the magnetic material such as the ballast case 52 from the joint is reduced. It becomes possible.

FIG. 7 is a perspective view of a large-scale example of the incomplete J's turret, and FIG. 8 is an exploded perspective view of FIG. 7. The case of Jin's withdrawal corresponds to the case of X described in U+1, and the part that resembles Hani is attached to the opposite side. A protrusion 15 protruding downward in FIG. This protrusion 151 is vertically +V as shown in 5I59L8I.
The amount of step 16 in which the r song is formed in an L-shape is .multidot.19. Also, the vertical 1 koto 9 MM- of the iron core 3 has a vertical 1171 concave corresponding to the IJ11 level view Lfjt16 like the funeral 91 flash. .

The iron core 2 and the iron core 3 are arranged so that the step amount 16 and the step surface 17 face each other (as shown in Fig. 67, the opposite surface of the gap 7''ll is formed parallel to the Z axis with jl≧). .

Therefore, the magnetic attraction and repulsion forces caused by the falling magnetic flux from the gap are immediately applied to the 18-way rotation of Ogami, so the vibrations of the iron cores 2 and 3 are ,'
You can suppress the laziness of e4's Koshio.

Figure 10 is from zero], and yet another person bM Reli's g-to situation is terrible. This embodiment is similar to the embodiment described above for U+4,
For the corresponding 01-minute, the same reference IM address is set to 4=J. In this embodiment, the length between the longitudinal sides of the lobes 6 and 7 of the f'i round center 2/
i#/i The shape is narrower than the length/2 (see Fig. 5) of the cape capitals 6 and 7 of iron core 2 in the above-mentioned actual bh example.

Also, at the ends of the irregularly located portions 8 of the iron core 3, ll111 portions 19 and 20 are formed extending along the upper side of FIG. 10 by a length of /1. Moreover, Il'l' tip of Koshikishin 2
6, 7's f force l'+1JIIIii6a, 7
The shape of a and the upwardly extending end L of the legs 19 and 20 of the iron core 3
[The shapes of 1119a and 20a are the same. Such iron core 2 and iron core 3 are 1j11th RfJ tlii
G a and @1Mj19a are joined so that uj7a and I'1Al11112 U a are in contact with each other. In other words, 4A 061 between iron core 2 and iron core 3. is located in the middle of the support leg 15i41 in the vertical direction in the *< l 0 figure.
The structure is broken as if it were tffi.

By making this upper 9 and positioning the joint in the middle of the upper do of R91, the dust can be adjusted to 4 of 11 of the J appliance.
1, relative tits +>6 swords, -] swords are also rejected,
Therefore, it is possible to suppress as much as possible the damage caused by the bundle to the component parts from the joint, and therefore it is possible to reduce the noise.

FIG. 11 is a front view of another embodiment of the invention. This embodiment is similar to the previous embodiment, and corresponding parts are provided with the same reference numerals. The tip of jFi U tt+59 of the iron core 3 is formed into a Y-shape that is bifurcated. Kore K J: Tsuteilr tm fit991) destination s@t
ip 21, 22 (!: 2 in the horizontal part 5 of the autumn iron core
gaps lla.

11b gets 1 ruby. Magnetic flux is 11'42:3
, 24 and determine the gaps lla and llb 1
Magnetic attraction/repulsion force of 25.26 due to magnetic flux leakage to the prefecture)
live one life. In this way, the attraction/repulsion force 25.26 is kE,
Since it was made to occur at two places with a large distance of +td on the right side, the connection 5 of the iron core 2 was connected to the points P l and P 2
Considering that the support beam is supported at both ends by °C<, then in this g%I example, the support points PI and P2 are attracted closer to each other! (Koriki 2
5.26 is in effect, so the IJ of iron core 2 is compensated.

This makes it possible to reduce the dose due to vibration.

Effects As described above, according to the tree@yo, a leakage flux prevention means is formed at the U-shaped core and the 'I'-shaped fall core joint 61s, and in addition, between the 'R-shaped depressed core and the U! Since a prevention means is formed to prevent the 4IiUt generated by the leakage magnetic flux from the gap with the f-shaped hem, it is possible to suppress the noise caused by the 1st ridge.

4. Figure un 1?11 Simple glance #)J Figure 1 is a front view of a large-scale prior art, Figure 2 t is a partially enlarged view of Figure 1, and Figure 3 is a view of another prior art. Ice 1 view, 4th
The figure is an exploded perspective view of Figure 51Mo3! Figure A'J5 is a front view of an embodiment of the invention. , iS Figure 6 is an enlarged view of h and the space diagram in Figure 5, and Figure 7 shows Example 4 of the pond for worship a.

Figure 9Mo8 is an exploded diagonal first view of Figure 7, Hanging: At first glance hJ view as seen from Jino 111 and Hunting lX-11 of Figure 7,
It is a first view of the shrine of still another embodiment of the 1O ward ItJ zero invention, and FIG. 11 is a first view of the shrine of another embodiment of the invention.

2...U-shaped core, 3...T-shaped core, 5...U
Connection part of the character-shaped iron core, 6, 7... U-shaped iron core 14S
18...'1-shaped iron core's bulge part, 9...'r-shaped iron core's seat part, 11... gap, 12.13...
・Amount of unevenness, 16, 18... Opposing surface, B, C... Leakage magnetic flux, A, υ... Magnetic attraction/repulsion agent Patent attorney Kei Nishi - 111> 6 Figure 2 Figure 3 Fig. 4 Fig. 5 Fig. 6 Fig. 7 Fig. 9 Fig. 10 Fig. 1 Fig. 11 Procedural amendment 1, Indication of the case Patent application No. 511-205303 2. Name of the invention Iron core structure of ballast 3 , Relationship with the case of the person making the amendment Applicant address name (583) Matsushita Electric Works Co., Ltd. Representative 4, Agent address 11” 113-38 Nishihonmachi, Nishi-ku, Osaka City Shinko Sangyo Building Country Equipment, G, X 11525-5985
1 N i” A P 'I”, 1 International FAX G1
1l&(ill (1)(i)538-11247)! - 6. Subject of amendment Injury, Part 1 of the title of the invention in Book II, Claims mark and Detailed description of the invention 7. Contents of amendment (1) Invention of Book M and specification Correct the name to ``1 ballast core structure''.

(2. The scope of claims is as shown in the attached sheet.

(3) Details t! I'f Page 52, 1st revision - 23rd line beginning [
Correct as indicated.

The present invention relates to an iron core structure of a ballast used, for example, in a fluorescent lamp.

(4) Specification f, page 52, line 5 to line 12, line 1] is corrected as follows.

A typical advanced 4i technology for ballasts used in fluorescent lamps and the like is shown in Figure f51.

(5) Ming #I Book 400f: 1 omitted change J in tS16th line day.”

Correct the text "F. stabilizer" to "F stabilizer".

(6) Ming 'I'tJ' m 5y (18th ('f
IJ l: t+ itel 5 The symbol J shown in the diagram is l[
Iti! Corrected to ``Indication''.

(7) Supplement the correction order as shown in the attached sheet.

14. Y Claims A U-shaped laminated iron core consisting of a pair of left and right legs and a connecting part that connects both legs aIS, and an extending part and a central part of the extending part extending directly from the extending part to the extending part. Extending hanging L
J, ``1'' character-shaped reconnaissance J (!r) consisting of a part and an iron core,
Each leg of the U-shaped core and both ends of the extension part of the T-shaped core are joined, and leakage magnetic flux is generated between the connecting part of the U-shaped core and the roadside of the vertical part of the T-shaped core. The iron core of the ballast in which a gap is formed to connect the ballast core (in the structure, the joint part l is formed with a leakage magnetic flux prevention means, and the connecting part of the I-shaped core or the perpendicular The iron core structure of the ballast is designed to have one stage of prevention '1' formed at the end of the road to prevent vibration caused by leakage magnetic flux leaking through the gap.

Claims (1)

[Scope of Claims] A U-shaped laminated iron core consisting of a pair of left and right legs and a connecting part connecting the two legs, an extending part and a vertical part extending bloodlessly from the center of the extending part to the extending part. and a T-shaped laminated core consisting of a T-shaped laminated core, each m-shaped core of the U-shaped core and both ends of the extension part of the T-shaped core are joined, and a connecting part of the U-shaped core and the T-shaped core are connected to each other. + with Notaru 1ba County Yudan
1ilIK is an iron core structure of a leaky transformer in which a gap is formed to generate leakage flux, and a leakage flux prevention means is formed at the joint part, and ia
Connection part of U-shaped iron core or vertical 1st part of T-shaped iron core
<An iron core structure of a transformer, characterized in that the free end is formed with a preventive means for preventing vibration caused by leakage magnetic flux leaking from the gap.