KR101615083B1 - Heat treatment instruments capacitor - Google Patents

Heat treatment instruments capacitor Download PDF

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Publication number
KR101615083B1
KR101615083B1 KR1020160009867A KR20160009867A KR101615083B1 KR 101615083 B1 KR101615083 B1 KR 101615083B1 KR 1020160009867 A KR1020160009867 A KR 1020160009867A KR 20160009867 A KR20160009867 A KR 20160009867A KR 101615083 B1 KR101615083 B1 KR 101615083B1
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South Korea
Prior art keywords
electrode plate
fastening
electrode
hole
holes
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KR1020160009867A
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Korean (ko)
Inventor
오희근
이경진
황대성
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대동콘덴서공업(주)
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
    • H01G2/08—Cooling arrangements; Heating arrangements; Ventilating arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
    • H01G2/02—Mountings
    • H01G2/04—Mountings specially adapted for mounting on a chassis
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/004—Details
    • H01G9/04—Electrodes or formation of dielectric layers thereon

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light-weighted electrode plate high-frequency large current conduction cooling capacitor, a capacitor element 10 having a first electrode terminal 10a and a second electrode terminal 10b formed at both ends thereof; An insulating film cover (20) surrounding the outer circumferential surface of the capacitor element (10); A first electrode plate 30 joined to the first electrode terminal 10a and having a plurality of first holes 31 formed at positions corresponding to the outside of the capacitor element 10 and having a flat surface; A second electrode plate 40 joined to the second electrode terminal 10b and having a plurality of second holes 41 at positions corresponding to the outside of the capacitor element 10 and having a flat surface; And a bolt B which is fixed to the first hole 31 of the first electrode plate so as to face the second electrode plate 40 and through which the first booth bar R1 for cooling is screwed, A plurality of first fastening ends 50 formed with fastening holes 50a; The second electrode plate is fixed to the second hole 41 of the second electrode plate so as to face the first electrode plate 30 and the bolts B passing through the second booth bar R2 for cooling are screwed And a plurality of second fastening ends 60 having fastening holes 60a formed therein.

Description

Light weight electrode plate High frequency large current conduction cooling capacitor {Heat treatment instruments capacitor}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lightweight electrode plate high-frequency large current conduction cooling capacitor, and more particularly, to a lightweight electrode plate high-frequency large current conduction cooling capacitor which is compact and can be assembled with improved cooling efficiency.

The high-frequency high-current capacitor is applied to a high-frequency heat treatment apparatus or an electric vehicle, and is a high frequency current of several Khz or more and a large current of several hundred amperes.

FIG. 1 is a view for explaining a conventional high frequency large current conduction cooling capacitor, and FIG. 2 is a view for explaining a fastening hole formed in a part of the electrode block of FIG.

As shown in FIG. 1, the conventional high-frequency high current capacitor includes a pair of electrode blocks 2a and 2b made of a copper material and bonded to the front end of the capacitor element 1; A bus bar R for cooling the heat generated in the capacitor element 1 is formed in the electrode blocks 2a and 2b and is fastened to the electrode blocks 2a and 2b using bolts B And a fastening hole (3). At this time, the fastening hole 3 is formed by tapering a part of the electrode blocks 2a and 2b, and the bolt B passing through the bus bar R is fastened to the fastening hole 3, And the electrode blocks 2a and 2b are in close contact with each other.

The heat generated in the capacitor element 1 is conducted to the bus bar R through the electrode blocks 2a and 2b, Whereby the heat generated in the capacitor element 1 is dissipated.

In the above structure, since the fastening holes 3 for fastening the bolts B for fastening the busbars R must be formed in the electrode blocks 2a and 2b, the electrode blocks 2a and 2b ) Becomes thicker and becomes a factor of rising cost, and the overall size of a high frequency high current capacitor becomes large.

Also, since the fastening holes 3 are formed in the electrode blocks 2a and 2b made of relatively loose copper, it is difficult to tightly fasten the bolts passing through the bus bars R. Accordingly, It was difficult to firmly adhere to the surfaces of the electrode blocks 2a and 2b. Thus, the heat conducted to the electrode blocks 2a and 2b has become a barrier to the complete conduction to the booth bar R.

Particularly, since the bolt B can not be strongly fastened, the electric vibration generated in the process of flowing the high frequency current leads to the phenomenon of the bolt B being loosened to the fastening hole 3, The contact state between the bus bar 2b and the bus bar R becomes loose. In this case, the capacitor element 1 is not sufficiently cooled, and the endurance life of the capacitor element 1 is lowered.

In addition, a prior art related to the high frequency capacitor is disclosed in the registration number 20-0218167 under the name of the connection port of the high frequency oil capacitor.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a lightweight electrode plate capable of reducing the thickness of the first and second electrode plates joined to both ends of the capacitor element, And to provide a capacitor.

It is another object of the present invention to provide a plasma processing apparatus and a plasma processing method that can prevent a loosening phenomenon from occurring even when an electrical vibration is generated during operation by keeping the booth bar and the first and second electrode plates in tight contact with each other, A large-sized electrode plate high-frequency large current conduction cooling capacitor which can always maintain a constant cooling efficiency even when the electrode plate is used.

In order to achieve the above object, the present invention provides a lightweight electrode plate high frequency large current conduction cooling capacitor. A capacitor element 10 having first and second electrode ends 10a and 10b formed at both ends thereof; An insulation film cover (20) surrounding the outer circumferential surface of the capacitor element (10); A first electrode plate 30 joined to the first electrode terminal 10a and having a plurality of first holes 31 at positions corresponding to the outside of the capacitor device 10 and having a flat surface; A second electrode plate 40 joined to the second electrode terminal 10b and having a plurality of second holes 41 formed at positions corresponding to the outside of the capacitor element 10 and having a flat surface; A bolt B passing through the first booth bar R1 for cooling is fixed to the first hole 31 of the first electrode plate so as to face the second electrode plate 40, A plurality of first fastening ends 50 formed with first fastening holes 50a; And a bolt (B) passing through the second booth bar (R2) for cooling is fixed to the second hole (41) of the second electrode plate so as to face the first electrode plate (30) And a plurality of second fastening ends 60 having second fastening holes 60a formed therein.

In the present invention, the first fastening end (50) includes: a first fitting protrusion (51) interposed in the first hole (31); And the first fitting protrusion 51 is provided on the first electrode plate 30 outside the first hole 31 by having a jaw having a diameter larger than that of the first fitting protrusion 51, A jaw body (52); The second fastening end (60) includes a second fitting protrusion (61) that is engaged with the second hole (41); The first and second fitting protrusions 61 and 62 are extended to the second electrode plate 40 outside the second hole 41 by having a larger diameter than the second fitting protrusions 61, And a body 62.

In the present invention, the first fastening end 50 is made of a metal material which is stronger than the first electrode plate 30 made of copper and has a small thermal expansion coefficient.

In the present invention, each of the first and second fastening ends 50 and 60 is formed on the jaws of the first and second jaw bodies 52 and 62, and the first and second fitting projections 51 and 52 61 and 63. The second outer diameter D2 of the first and second toothed portions 53 and 63 is larger than the outer diameter D2 of the first and second toothed portions 53 and 63, Is smaller than the first outer diameter D1 of the first and second fitting protrusions 51 and 61 and smaller than the third outer diameter D3 of the first and second jaw bodies 52 and 62. [

In the present invention, the outer circumferential surfaces of the first and second fitting protrusions 51 and 61 are formed with first and second tapered ends 61 and 62, respectively, whose outer diameters become smaller toward the first and second jaw bodies 52 and 62, (54) and (64) are formed.

According to the present invention, since the first and second fastening ends have the first and second jaw bodies fixed to the first and second electrode plates by being hung from the first and second electrode plates, The bolts passing through the two booth bars can be tightly fastened to the first and second through holes so that the bolt is prevented from being loosened even if electrical vibration is generated during operation, , It is possible to prevent degradation of the service life of the capacitor element due to overheating.

Also, since the first and second fastening holes to which the bolts are fastened are formed at the first and second fastening ends other than the first and second fastening holes, the thickness of the first and second electrode plates is 1/3 or less It is possible to reduce the cost, and at the same time, it is possible to make the high frequency large current conduction cooling capacitor compact.

Since the thermal expansion coefficients of the first and second fastening terminals are smaller than those of the first and second electrode plates made of copper, as the first and second electrode plates are heated, The inner diameter becomes smaller, so that the first and second fastening ends can be more firmly fixed to the first and second holes.

Further, since the first and second fastening ends each have the first and second toothed ends and the first and second beveled ends formed on the outside of the first and second fitting projections, The first and second toothed ends form first and second crushing ends which strongly contact the edge sides of the first and second fittting protrusions, And is more firmly fixed to the electrode plate.

The step of assembling the first and second fastening ends to the first and second electrode plates is performed by inserting the first and second fitting protrusions into the first and second holes, Therefore, the assembling process of the first and second fastening ends is very easy, and the assembling performance is improved.

1 is a view for explaining a conventional high frequency large current conduction cooling capacitor,
FIG. 2 is a view for explaining a fastening hole formed in a part of the electrode block of FIG. 1,
3 is a view for explaining a light-weighted electrode plate high frequency large current conduction cooling capacitor according to the present invention,
FIG. 4 is an exploded perspective view illustrating the capacitor and the first and second electrode plates of FIG. 3,
5 is a view for explaining that first and second guide grooves are formed at the center of the first and second electrode plates of FIG. 3,
FIG. 6 is a perspective view of the first and second fastening ends fixed to the first and second holes of the first and second electrode plates of FIGS. 4 and 5,
7 is a view for explaining how the first and second fastening ends of FIG. 6 are coupled to the first and second holes of the first and second electrode plates,
8 is a view for explaining a state in which the first and second fastening ends of FIG. 7 are coupled and fixed to the first and second holes of the first and second electrode plates;

Hereinafter, a light-weighted electrode plate high frequency large current conduction cooling capacitor according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 3 is an explanatory view of a light-weighted electrode plate high frequency large current conduction cooling capacitor according to the present invention, FIG. 4 is an exploded perspective view illustrating the capacitor and the first and second electrode plates of FIG. 3, And the first and second guide grooves are formed at the center of the first and second electrode plates.

As shown in the figure, the lightweight electrode plate high-frequency large current conduction cooling capacitor according to the present invention includes a capacitor element 10 having a first electrode terminal 10a and a second electrode terminal 10b formed at both ends thereof; An insulating film cover (20) surrounding the outer circumferential surface of the capacitor element (10); A first electrode plate 30 joined to the first electrode terminal 10a and having a plurality of first holes 31 formed at positions corresponding to the outside of the capacitor element 10 and having a flat surface; A second electrode plate 40 joined to the second electrode terminal 10b and having a plurality of second holes 41 at positions corresponding to the outside of the capacitor element 10 and having a flat surface; And a bolt B passing through the first booth bar R1 for cooling is fastened to the first hole 31 of the first electrode plate so as to face the second electrode plate 40, A plurality of first fastening ends 50 formed with holes 50a; And a bolt B passing through the second booth bar R2 for cooling is fixed to the second hole 41 of the second electrode plate so as to face the first electrode plate 30, And a plurality of second fastening ends 60 on which holes 60a are formed.

The capacitor elements 10 are spaced apart from each other and face each other, and a dielectric film such as a polypropylene film or a metallized polypropylene film may be formed between the electrode films made of aluminum foil , A dielectric film in which a vapor-deposited film and a polypropylene film are laminated, is superimposed on each other and wound in multiple layers to be realized as a cylindrical shape.

The first and second electrodes 10a and 10b are formed at both ends of the capacitor element 10 and are realized by metallization of copper or by spraying copper and spraying zinc first.

Since the capacitor element 10 of the present invention is used for high frequency and large current resonance, a large amount of heat is generated inside the capacitor element 10. This heat must be conducted to the outside of the capacitor element 10 immediately, and if the conduction fails, thermal damage is applied to the thin film constituting the capacitor element. The first and second electrode terminals 10a and 10b are made of copper or copper having good thermal conductivity so as to quickly conduct the heat generated from the capacitor element 10 to the first and second electrode plates 30 and 40. [ And zinc.

The first and second electrode plates 30 and 40 are generally made of a flat plate, in this embodiment, a square shape and made of a copper material having a high thermal conductivity. Since the first and second electrode plates 30 and 40 are in the form of a plate, a generally sold copper plate can be cut and used, thereby reducing manufacturing cost.

The first and second electrode tips 10a and 10b of the capacitor element 10 are in close contact with the first and second electrode plates 30 and 40 so that the close- ).

5, the first and second electrodes 10a and 10b of the capacitor element 10 are partially embedded in the center of the first and second electrode plates 30 and 40, Two guide grooves 30a and 40a can be formed. In this case, the first and second guide grooves 30a and 40a guide the capacitor element 10 to be positioned at the center of the first and second electrode plates 30 and 40, Heat can be conducted evenly to the first and second electrode plates 30 and 40, and further, the assembling property for assembling the conduction cooling capacitor of the present invention can be improved.

FIG. 6 is a perspective view of the first and second fastening ends fixed to the first and second holes of the first and second electrode plates of FIGS. 4 and 5. FIG. 7 is a cross- FIG. 8 is a view illustrating a state in which the first and second fastening ends of FIG. 7 are coupled to the first and second holes of the first and second electrode plates, Fig.

The first fastening end 50 is made of a metal material which is stronger than the first electrode plate 30 made of copper and has a small coefficient of thermal expansion, for example, stainless steel or aluminum. The first fastening end 50 includes a first fitting protrusion 51 that is engaged with the first hole 31 of the first electrode plate 30; The first hole 31 is formed in the first electrode plate 30 so as to extend over the first electrode plate 30 by having a jaw having a diameter larger than that of the first fitting protrusion 51, And a body (52).

The second fastening end 60 is made of a metal material which is stronger than the second electrode plate 40 made of copper and has a small thermal expansion coefficient, for example, stainless steel or aluminum. The second fastening end 60 includes a second fitting protrusion 61 which is engaged with the second hole 41 of the second electrode plate 40; And a second protrusion 61 is provided on the second electrode plate 40 outside the second hole 41 by having a taper of a diameter larger than that of the second fitting protrusion 61, And a body (62).

That is, the first and second fastening members 50 and 60 face the first and second electrode plates 30 and 40 facing each other, The first and second holes 31 and 41 do not penetrate through the first and second holes 31 and 41 but over the surface of the first and second electrode plates 30 and 40 on the edge side of the first and second holes 31 and 41.

3, the bolts B pass through the first and second booth bars R1 and R2 from the outside of the first and second electrode plates 30 and 40, The first and second fastening ends 50 and 60 are connected to the first and second electrode plates 30 and 40 and the first and second bus bars R1 and R2 when fastened to the holes 50a and 60a. The first and second fastening ends 50 and 60 are not loosened even when the capacitor element 10 generates electrical vibration. Therefore, in any case, it is possible to prevent the first and second electrode plates 30 and 40 from being loosened in close contact with the first and second bus bars R1 and R2. Therefore, the heat generated in the capacitor element 10 Can be smoothly conducted to the first and second bus bars R1 and R2 through the first and second electrode plates 30 and 40 and the lifetime of the capacitor element 10 is reduced even if time passes .

Each of the first and second fastening members 50 and 60 is formed on the jaws of the first and second jaw bodies 52 and 62 and is formed on the outer side of the first and second fitting projections 51 and 61 First and second teeth 53 and 63; First and second inclined ends 54 and 64 formed on the outer circumferential surfaces of the first and second fitting protrusions 51 and 61 so as to have a smaller outer diameter toward the first and second jaw bodies 52 and 62 ). ≪ / RTI > The second outer diameter D2 of the first and second toothed sections 53 and 63 is set to be larger than the first outer diameter D1 of the first and second fitting projections 51 and 61 And is smaller than the third outer diameter D3 of the first and second tilted bodies 52 and 62. [ The inner diameter of the first and second holes 31 and 41 is equal to the first outer diameter D1 of the first and second fitting protrusions 51 and 61 or the inner diameter of the first and second fitting protrusions 51 and 51 The second outer diameter D2 of the first and second teeth 53 and 63 is larger than the inner diameter D1 of the first and second holes 31 and 41 Big.

Therefore, when the first and second fitting projections 51 and 61 are fitted in the first and second holes 31 and 41 and then pressed in the direction of the arrow, the first and second teeth 53 and 63 are engaged with the first, The first and second crushing ends 31a and 41a are formed so as to protrude to the inside of the first and second holes 31 and 41 while crushing a part of the edges of the two holes 31 and 41, The crushing ends 31a and 41a are in close contact with the edges of the first and second fitting protrusions 51 and 61 so that the first and second fastening ends 50 and 60 are engaged with the first and second holes 31 and 31 41).

The first and second fitting protrusions 51 and 61 have first and second inclined ends 54 and 64 for reducing the outer diameter toward the first and second jaw bodies 52 and 62 The crushed ends 31a and 41a press the first and second fitting protrusions 51 and 61 more strongly so that the first and second fastening ends 50 and 60 are engaged with the first Electrode plate 30 (40), as shown in Fig.

The first and second fastening members 50 and 60 are disposed between the first and second electrode plates 30 and 40 to be fixed to the first and second electrode plates 30 and 40, The bolts B passing through the first and second bus bars R1 and R2 from the outside of the first and second electrode plates 30 and 40 have the first and second tuck bodies 52 and 62, The first and second electrode plates 30 and 40 and the first and second bus bars R1 and R2 are strongly coupled to the first and second fastening holes 50a and 60a, So that it is in a close contact state. Thus, even if electrical vibration is generated during operation, the bolt B is prevented from being loosened, and constant cooling efficiency can be always maintained even after a lapse of time, thereby preventing deterioration of the service life of the capacitor element 10 due to overheating .

Since the first and second fastening holes to which the bolts B are fastened are formed on the first and second fastening ends 50 and 60 other than the first and second fastening holes 60 and 60, 40 can be reduced to 1/3 or less of the thickness of the conventional electrode block, thereby reducing the cost and making the high frequency large current conduction cooling capacitor compact.

The thermal expansion rate of the first and second fastening ends 50 and 60 is smaller than that of the first and second electrode plates 30 and 40 made of copper. The inner diameters of the first and second holes 31 and 41 are reduced due to the expansion of the first and second electrode plates 30 and 40. As a result, The first and second holes 31 and 41 can be more firmly fixed.

Each of the first and second fastening ends 50 and 60 has first and second toothing 53 and 63 formed on the outer sides of the first and second fitting projections 51 and 61, Since the first and second fitting protrusions 51 and 61 have the first and second holes 31 and 54 formed on the outer circumferential surfaces of the protrusions 51 and 61 The first and second toothed portions 53 and 63 are engaged with the first and second fitting projections 51 and 61 and the first and second toothed portions 53 and 63 are engaged with the first and second fitting projections 51 and 61, So that the first and second fastening ends 50 and 60 are more firmly attached to the first and second electrode plates 30 and 40, .

The process of assembling the first and second fastening ends 50 and 60 to the first and second electrode plates 30 and 40 may be performed by the first and second fitting projections 51 and 61, Since the first and second tilting bodies 51 and 61 are fitted to the first and second electrode plates 30 and 40 after the first and second tilting bodies 31 and 41 are fitted to each other, The assembling process of the stages (50) and (60) is very easy and the assemblability is improved.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

10 ... Capacitor element 10a, 10b ... First and second extremities
20 ... Insulation film cover 30 ... First electrode plate
30a ... First guide groove 31 ... First hole
31a ... first crushing stage 40 ... first electrode plate
40a ... second guide groove 41 ... second hole
41a ... 2nd crushing stage 50 ... 1st fastening stage
50a ... first fastening hole 51 ... first fitting projection
52 ... first jaw body 53 ... first tooth edge
54 ... First inclined end 60 ... Second fastening end
60a ... second fastening hole 61 ... second fitting projection
62 ... second jaw body 63 ... second toothed edge
64 ... 2nd ramp

Claims (5)

A capacitor element 10 having first and second electrode ends 10a and 10b formed at both ends thereof;
An insulation film cover (20) surrounding the outer circumferential surface of the capacitor element (10);
A first electrode plate 30 joined to the first electrode terminal 10a and having a plurality of first holes 31 at positions corresponding to the outside of the capacitor device 10 and having a flat surface;
A second electrode plate 40 joined to the second electrode terminal 10b and having a plurality of second holes 41 formed at positions corresponding to the outside of the capacitor element 10 and having a flat surface;
A bolt B passing through the first booth bar R1 for cooling is fixed to the first hole 31 of the first electrode plate so as to face the second electrode plate 40, A plurality of first fastening ends 50 formed with first fastening holes 50a; And
A bolt B passing through the second booth bar R2 for cooling is fixed to the second hole 41 of the second electrode plate so as to face the first electrode plate 30, And a plurality of second fastening ends (60) having a second fastening hole (60a) formed therein. The method according to claim 1,
The first fastening end (50) includes: a first fitting protrusion (51) that is engaged with the first hole (31); And the first fitting protrusion 51 is provided on the first electrode plate 30 outside the first hole 31 by having a jaw having a diameter larger than that of the first fitting protrusion 51, A jaw body (52);
The second fastening end (60) includes a second fitting protrusion (61) that is engaged with the second hole (41); The first and second fitting protrusions 61 and 62 are extended to the second electrode plate 40 outside the second hole 41 by having a larger diameter than the second fitting protrusions 61, And a body (62). ≪ RTI ID = 0.0 > A < / RTI > 3. The method of claim 2,
Wherein the first fastening step (50) is made of a metal material which is stronger than the first electrode plate (30) made of copper and has a small thermal expansion coefficient. 3. The apparatus according to claim 2, wherein each of the first and second fastening members (50, 60)
The first and second toothed parts 53 and 63 formed on the outer side of the first and second fitting protrusions 51 and 61 are formed on the jaws of the first and second jaw bodies 52 and 62, Wherein the second outer diameter D2 of the first and second teeth 53 and 63 is greater than the first outer diameter D1 of the first and second fitting protrusions 51 and 61, (D3) of the first and second jaw bodies (52, 62). 5. The method of claim 4,
The first and second fitting protrusions 51 and 61 have first and second inclined ends 54 and 64 for reducing the outer diameter toward the first and second jaw bodies 52 and 62 ) Is formed on the surface of the electrode plate.
KR1020160009867A 2016-01-27 2016-01-27 Heat treatment instruments capacitor KR101615083B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101811987B1 (en) * 2017-08-21 2017-12-22 대동콘덴서공업(주) High frequency and current capacitor
KR101811988B1 (en) 2017-08-21 2017-12-22 대동콘덴서공업(주) High frequency and current capacitor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101340743B1 (en) 2013-09-06 2013-12-12 대동콘덴서공업(주) Round type capacitor for heat treatment instruments
KR101448428B1 (en) 2014-04-30 2014-10-13 대동콘덴서공업(주) Cap type capacitor for heat treatment instruments
KR101471336B1 (en) 2014-04-30 2014-12-12 대동콘덴서공업(주) Heat treatment instruments capacitor unit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101340743B1 (en) 2013-09-06 2013-12-12 대동콘덴서공업(주) Round type capacitor for heat treatment instruments
KR101448428B1 (en) 2014-04-30 2014-10-13 대동콘덴서공업(주) Cap type capacitor for heat treatment instruments
KR101471336B1 (en) 2014-04-30 2014-12-12 대동콘덴서공업(주) Heat treatment instruments capacitor unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101811987B1 (en) * 2017-08-21 2017-12-22 대동콘덴서공업(주) High frequency and current capacitor
KR101811988B1 (en) 2017-08-21 2017-12-22 대동콘덴서공업(주) High frequency and current capacitor

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