CN201174319Y - Dual cooling type high frequency induction heating capacitor - Google Patents
Dual cooling type high frequency induction heating capacitor Download PDFInfo
- Publication number
- CN201174319Y CN201174319Y CNU2008200462566U CN200820046256U CN201174319Y CN 201174319 Y CN201174319 Y CN 201174319Y CN U2008200462566 U CNU2008200462566 U CN U2008200462566U CN 200820046256 U CN200820046256 U CN 200820046256U CN 201174319 Y CN201174319 Y CN 201174319Y
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- capacitor
- metal derby
- low magnetic
- housing
- capacitor body
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Abstract
The utility model discloses a dual cooling type high frequency sensing heating capacitor, comprising a housing, heat conducting and flame retarding epoxide resin, a capacitor core and a core leading-out end, wherein a leading-out end cooling water channel is arranged inside the housing close to the core leading-out end, two ends of the leading-out end cooling water channel extend out of the housing, the inner part of the housing is provided with a low magnetic conductivity metal block which is provided with a capacitor core receiving hole, the capacitor core is fixed with the capacitor core receiving hole, and the heat conducting and flame retarding epoxide resin is cast into the housing surrounding the low magnetic conductivity metal block and the capacitor core. The capacitor with the structure indirectly cools the core leading-out end through water by the leading-out end cooling water channel, is provided with the low magnetic conductivity metal block inside the housing, greatly increases the heat conducting speed of the capacitor core, and ensures the heat quantity is dispersed in time. The dual cooling radiating way has good radiating effect, and ensures that the capacitor is suitable for a sensing heating device with higher requirements on the overlarge current, high dv/dt and rapid radiation.
Description
Technical field
The utility model relates to the capacitor technology field, especially a kind ofly is used for high-frequency resonant electric capacity on the induction heating equipment.
Background technology
In HF induction heating apparatus, the electric capacity of using as resonance, according to the size of power and side circuit use different, capacity requirement is generally between 0.01～3 μ F, voltage is in 3000V; Its common feature is, requires frequency height, electric current big, and dv/dt is big, low-loss, low inductance, rapid heat dissipation.
Induction heating electric capacity commonly used, its structure comprises housing, heat conductive flame-retarding epoxy resin, capacitor body and fuse exit thereof, be equiped with the exit cooling-water duct near fuse exit side in the housing, extend outside the housing at the two ends of exit cooling-water duct, and heat conductive flame-retarding epoxy resin is poured in the capacitor body housing on every side.The electric capacity that above-mentioned induction heating is used is made medium with polypropylene film, with aluminium foil or with two-sided evaporation the metalized film of metal level to be arranged be electrode, through being wound into capacitor core, draws as the fuse exit with the red copper terminal again.The induction heating electric capacity of said structure by indirect water-cooling cooling red copper terminal, thereby reaches the purpose of cooling off fuse.The capacitor of said structure, can satisfy the instructions for use of general HF induction heating apparatus, still, for requiring higher induction heating equipment, capacitor must possess super-high-current, high dv/dt, the characteristics of rapid heat dissipation, and existing many capacitors, be subjected to the restriction of its heat efficiency, cause heating seriously to lose efficacy easily, perhaps just can't satisfy this more high frequency, the application scenario of higher electric current at all.
The utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and a kind of dual cooling type high frequency induction heating capacitor that is applicable to the induction heating equipment of high frequency, big electric current is provided.
The purpose of this utility model is achieved in that
Dual cooling type high frequency induction heating capacitor, comprise housing, heat conductive flame-retarding epoxy resin, capacitor body and fuse exit thereof, be equiped with the exit cooling-water duct near fuse exit side in the housing, extend outside the housing at the two ends of exit cooling-water duct, also be provided with the low magnetic permeability metal derby in the described housing, have the capacitor body containing hole on the low magnetic permeability metal derby, capacitor body containing hole internal fixation has capacitor body, and heat conductive flame-retarding epoxy resin is poured in low magnetic permeability metal derby and the capacitor body housing on every side.The capacitor of this structure, by the exit cooling-water duct, indirect water-cooling cooling fuse exit by set up the low magnetic permeability metal derby in housing, has been accelerated the heat-transfer rate of capacitor body simultaneously widely, make heat in time be loose, the radiating mode of this dual-cooled has fabulous radiating effect, so that capacitor is applicable to super-high-current, high dv/dt, the induction heating equipment of the requirements at the higher level of rapid heat dissipation uses.
The purpose of this utility model can also adopt following technical measures to solve:
For further improving the radiating effect of capacitor body, in described low magnetic permeability metal derby, also have the metal derby cooling-water duct; That is: the low magnetic permeability metal derby is directly cooled off in water flowing in the metal derby cooling-water duct, and cooling effect will be better like this.
Described metal derby cooling-water duct is connected with the exit cooling-water duct.
As the embodiment of above-mentioned metal derby cooling-water duct, described metal derby cooling-water duct is limbers or the water service pipe in the low magnetic permeability metal derby.
As further more specifically implementing, described low magnetic permeability metal derby is an aluminium block, have a plurality of capacitor body containing holes that run through its forward and backward surface on the aluminium block, each capacitor body containing hole internal fixation has corresponding capacitor body, the heat transferred that capacitor body produces passes to water in the metal derby cooling-water duct by aluminium block again to aluminium block, last, heat is pulled away with water, realizes water-cooled effect.
Described fuse exit is the red copper piece, and the forward and backward surface of low magnetic permeability metal derby is welded with forward and backward red copper piece respectively, and the capacitor body two ends are electrically connected with forward and backward red copper piece, a plurality of capacitor bodies on the low magnetic permeability metal derby is is connected in parallel.
Described capacitor body comprises that two aluminium foils, two polypropylene films and double-sided metal film constitute, two polypropylene films are separately positioned on the upper and lower end face of double-sided metal film, two aluminium foils are arranged on wherein on the polypropylene film, and capacitor body is reeled by string and polypropylene film, double-sided metal film in two aluminium foils and formed.Adopt the noninductive winding-structure of string in the metallized polypropylene film paper tinsel formula, the low square resistance requirement of double-edge film, the coating of two films connects together, reduce single fuse loss and inductance, at last, capacitor body also connects the fuse exit and draws, and solves frequency of utilization height, electric current is big, dv/dt is big problem better with capacitor.
The beneficial effects of the utility model are:
(1) dual cooling type high frequency induction heating capacitor of the present utility model, by the exit cooling-water duct, indirect water-cooling cooling fuse exit by set up the low magnetic permeability metal derby in housing, has been accelerated the heat-transfer rate of capacitor body simultaneously widely, make heat in time be loose, the radiating mode of this dual-cooled has fabulous radiating effect, so that capacitor is applicable to super-high-current, high dv/dt, the induction heating equipment of the requirements at the higher level of rapid heat dissipation uses; Prove that by experiment under the identical situation of experiment condition, the capacitor that has additional the heat radiation of low magnetic permeability metal derby is compared with the capacitor of common single red copper terminal indirect water-cooling cooling, the former temperature rise is lower, and Temperature Distribution is more even; Moreover, if on the low magnetic permeability metal derby, have the metal derby cooling-water duct; That is: the low magnetic permeability metal derby is directly cooled off in water flowing in the metal derby cooling-water duct, and cooling effect will be better like this.
(2) high frequency induction heating capacitor of this structure, capacitor body adopts the noninductive winding-structure of string in the metallized polypropylene film paper tinsel formula, the low square resistance requirement of double-edge film, the coating of two films connects together, reduce single fuse loss and inductance, last fuse also connects copper coin and draws, to solve capacitor frequency of utilization height, electric current is big, dv/dt is big problem.
Description of drawings
Fig. 1 is the structural representation of the utility model dual cooling type high frequency induction heating capacitor;
Fig. 2 is the interior low magnetic permeability metal derby of capacitor and its forward and backward both sides red copper piece fuse exit schematic diagram thereof of Fig. 1;
Fig. 3 is the three-dimensional exploded view of Fig. 2;
Fig. 4 is the low magnetic permeability metal derby front view of Fig. 2;
Fig. 5 is another embodiment schematic diagram of Fig. 2;
Fig. 6 is interior low magnetic permeability metal derby of the capacitor of Fig. 5 and forward and backward both sides red copper piece fuse exit schematic diagram thereof;
Fig. 7 is the low magnetic permeability metal derby front view of Fig. 5;
Fig. 8 is a capacitor body structural representation of the present utility model.
Embodiment
Embodiment 1: see that Fig. 1 is to shown in Figure 4, a kind of dual cooling type high frequency induction heating capacitor, comprise housing 1, heat conductive flame-retarding epoxy resin 2, capacitor body 3 and fuse exit 4 thereof, be equiped with exit cooling-water ducts 5 near fuse exit 4 sides in the housing 1, extend outside the housing 1 at the two ends of exit cooling-water duct 5, also be provided with low magnetic permeability metal derby 6 in the described housing 1, have capacitor body containing hole 7 on the low magnetic permeability metal derby 6, capacitor body containing hole 7 internal fixation have capacitor body 3, and heat conductive flame-retarding epoxy resin 2 is poured in low magnetic permeability metal derby 6 and capacitor body 3 housing 1 on every side.
Above-mentioned low magnetic permeability metal derby 6 is aluminium blocks, has a plurality of capacitor body containing holes 7 that run through its forward and backward surface on the aluminium block, and each capacitor body containing hole 7 internal fixation has corresponding capacitor body 3.Described fuse exit 4 is red copper pieces, and the forward and backward surface of low magnetic permeability metal derby 6 is welded with forward and backward red copper piece respectively, and capacitor body 3 two ends are electrically connected with forward and backward red copper piece, a plurality of capacitor bodies 3 on the low magnetic permeability metal derby 6 is is connected in parallel.
Embodiment 2: see that Fig. 5 is to shown in Figure 7, this structure is close with embodiment 1, difference is, in low magnetic permeability metal derby 6, also have metal derby cooling-water duct 8, metal derby cooling-water duct 8 is connected with exit cooling-water duct 5, and metal derby cooling-water duct 8 is limbers or the water service pipes in the low magnetic permeability metal derby 6; On low magnetic permeability metal derby 6, have metal derby cooling-water duct 8; That is: low magnetic permeability metal derby 6 is directly cooled off in water flowing in metal derby cooling-water duct 8, and cooling effect will be better like this.
See shown in Figure 8, above-mentioned capacitor body 3 comprises that two aluminium foil 301, two polypropylene films 302 and double-sided metal film 303 constitute, two polypropylene films 302 are separately positioned on the upper and lower end face of double-sided metal film 303, two aluminium foils 301 are arranged on wherein on the polypropylene film 302, and capacitor body 3 is reeled and formed by string and polypropylene film 302, double-sided metal film 303 in two aluminium foils 301.
Claims (7)
1. dual cooling type high frequency induction heating capacitor, comprise housing (1), heat conductive flame-retarding epoxy resin (2), capacitor body (3) and fuse exit (4) thereof, be equiped with exit cooling-water duct (5) near fuse exit (4) side in the housing (1), extend outside the housing (1) at the two ends of exit cooling-water duct (5), it is characterized in that, also be provided with low magnetic permeability metal derby (6) in the described housing (1), have capacitor body containing hole (7) on the low magnetic permeability metal derby (6), capacitor body containing hole (7) internal fixation has capacitor body (3), and heat conductive flame-retarding epoxy resin (2) is poured in low magnetic permeability metal derby (6) and capacitor body (3) housing (1) on every side.
2. according to the described dual cooling type high frequency induction heating capacitor of claim 1, it is characterized in that, also have metal derby cooling-water duct (8) in the described low magnetic permeability metal derby (6).
3. according to the described dual cooling type high frequency induction heating capacitor of claim 2, it is characterized in that described metal derby cooling-water duct (8) is connected with exit cooling-water duct (5).
4. according to the described dual cooling type high frequency induction heating capacitor of claim 2, it is characterized in that described metal derby cooling-water duct (8) is limbers or the water service pipe in the low magnetic permeability metal derby (6).
5. according to claim 1 or 2 described dual cooling type high frequency induction heating capacitors, it is characterized in that, described low magnetic permeability metal derby (6) is an aluminium block, have a plurality of capacitor body containing holes (7) that run through its forward and backward surface on the aluminium block, each capacitor body containing hole (7) internal fixation has corresponding capacitor body (3).
6. according to the described dual cooling type high frequency induction heating capacitor of claim 5, it is characterized in that, described fuse exit (4) is the red copper piece, the forward and backward surface of low magnetic permeability metal derby (6) is welded with forward and backward red copper piece respectively, capacitor body (3) two ends are electrically connected with forward and backward red copper piece, a plurality of capacitor bodies (3) on the low magnetic permeability metal derby (6) are are connected in parallel.
7. according to the described dual cooling type high frequency induction heating capacitor of claim 1, it is characterized in that, described capacitor body (3) comprises that two aluminium foils (301), two polypropylene films (302) and double-sided metal film (303) constitute, two polypropylene films (302) are separately positioned on the upper and lower end face of double-sided metal film (303), two aluminium foils (301) are arranged on wherein on the polypropylene film (302), and capacitor body (3) is reeled by string and polypropylene film (302), double-sided metal film (303) in two aluminium foils (301) and formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200462566U CN201174319Y (en) | 2008-04-11 | 2008-04-11 | Dual cooling type high frequency induction heating capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200462566U CN201174319Y (en) | 2008-04-11 | 2008-04-11 | Dual cooling type high frequency induction heating capacitor |
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| Publication Number | Publication Date |
|---|---|
| CN201174319Y true CN201174319Y (en) | 2008-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200462566U Expired - Fee Related CN201174319Y (en) | 2008-04-11 | 2008-04-11 | Dual cooling type high frequency induction heating capacitor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101299396B (en) * | 2008-04-11 | 2011-05-25 | 孔星 | Dual cooling type high frequency induction heating capacitor |
| CN101930848B (en) * | 2009-06-22 | 2012-05-23 | 佛山市顺德区创格电子实业有限公司 | Double-cooling capacitor |
| CN103021652A (en) * | 2012-12-28 | 2013-04-03 | 山东彼岸电力科技有限公司 | Zero-electrocorrosion medium-frequency resonance capacitor cooling device |
| CN106847500A (en) * | 2015-12-05 | 2017-06-13 | 佛山市南海区欣源电子有限公司 | A kind of resonant capacitor of copper coin water cooling |
-
2008
- 2008-04-11 CN CNU2008200462566U patent/CN201174319Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101299396B (en) * | 2008-04-11 | 2011-05-25 | 孔星 | Dual cooling type high frequency induction heating capacitor |
| CN101930848B (en) * | 2009-06-22 | 2012-05-23 | 佛山市顺德区创格电子实业有限公司 | Double-cooling capacitor |
| CN103021652A (en) * | 2012-12-28 | 2013-04-03 | 山东彼岸电力科技有限公司 | Zero-electrocorrosion medium-frequency resonance capacitor cooling device |
| CN106847500A (en) * | 2015-12-05 | 2017-06-13 | 佛山市南海区欣源电子有限公司 | A kind of resonant capacitor of copper coin water cooling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081231 Termination date: 20160411 |
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| CF01 | Termination of patent right due to non-payment of annual fee |