CN209374277U - The high frequency capacitor of homogeneous current distribution - Google Patents
The high frequency capacitor of homogeneous current distribution Download PDFInfo
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- CN209374277U CN209374277U CN201920179214.8U CN201920179214U CN209374277U CN 209374277 U CN209374277 U CN 209374277U CN 201920179214 U CN201920179214 U CN 201920179214U CN 209374277 U CN209374277 U CN 209374277U
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- copper strips
- core group
- capacitor
- high frequency
- current distribution
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Abstract
The utility model discloses the high frequency capacitors of homogeneous current distribution, it includes capacitor case (7), extraction electrode (6), capacitor core group (1) and filling and the insulation filling substance (8) between capacitor case and capacitor core group, the capacitor core group passes through core group connection copper strips (3) connection conducting, transition copper strips (2) are fixedly connected in the middle part of the core group connection copper strips, the transition copper strips is connected with extraction electrode, is equipped with insulating element (4) between copper strips between the core group connection copper strips and transition copper strips.The utility model has the beneficial effects that connecting the connection and insulation between copper strips and transition copper strips by core group, import electric current from the middle part of core group copper strips, it is conducted respectively to the upper and lower part of core group, is uniformly distributed electric current in core group, thus the case where avoiding the occurrence of capacitor upper overheat.
Description
Technical field
The utility model relates to the good capacitors of capacitor more particularly to a kind of high frequency performance.
Background technique
With the rapid development of power electronics industry, the either fields such as rail traffic, SVG, photovoltaic are to electric power
The demand of electronic capacitor is increasing, and capacitor has emphatically the reliability of complete machine as the Primary Component in power device
The decisive action wanted.Currently, the connection type of capacitor internal is that fuse is carried out after connecting in series and parallel by core group connection copper strips,
In core group connection copper strips close to the side of extraction electrode, core group connection copper strips is connected with extraction electrode.Capacitor at work,
Electric current reaches core group copper strips by extraction electrode, by core group copper strips by the top-down conduction of electric current.With power electronic equipment
Switching frequency is higher and higher and the height dimension of capacitor is increasing, so that electric current is evenly distributed in the core of capacitor
In son, capacitor top and the bottom fuse current distribution is uneven is avoided to cause fuse fever uneven.It prevents under high frequency operating condition, due to
Current density unevenness leads to hot-spot, influences capacitor normal use and even burns out capacitor.
Chinese invention patent publication number CN108520823A discloses a kind of suction wave support capacitor, and shell is outside metal
Shell, potting compound are thermally conductive High temperature epoxy resins；The two poles of the earth exit is combined by being welded on to connect on composite copper bar, the two poles of the earth of copper bar
Centre is separated with insulation board, which welds multiply copper flexible cord in entire product upper end, then and be connected to fuse group on copper bar
On end face, which can make exit homogeneous current distribution, but the capacitor is to reduce calorific value in terms of material, cannot
Fundamentally solve the problems, such as that large scale condenser current is unevenly distributed.
Utility model content
The technical problems to be solved in the utility model is that existing capacitor high-frequency current is unevenly distributed, main concentrate of generating heat
Capacitor body on top provides the capacitor that a kind of suitable high frequency uses homogeneous current distribution thus.
The technical solution of the utility model is: the high frequency capacitor of homogeneous current distribution, it includes capacitor case, draws
Insulation filling substance between electrode, capacitor core group and filling and capacitor case and capacitor core group, the capacitor core
Group connects copper strips connection conducting by core group, is fixedly connected with transition copper strips, the transition copper in the middle part of the core group connection copper strips
Band is connected with extraction electrode, is equipped with insulating element between copper strips between the core group connection copper strips and transition copper strips.
Core group described in above scheme connects passes through soldering, butt-joint or riveting between transition copper strips in the middle part of copper strips.
The improvement of above scheme is to be equipped with insulation board between the core group connection copper strips and capacitor core group.
The further improvement of above scheme is that the end of the transition copper strips is interior with insulating element between copper strips to be included in
Bending part, the bending part connect in the middle part of copper strips with core group and is fixedly connected.
Insulating element described in above scheme and insulation board are linked together to form " Contraband " word structure.
Insulating element described in above scheme is insulating paper/insulated paint/polypropylene film or epoxy plate.
Insulation board described in above scheme is insulating paper/insulated paint/polypropylene film or epoxy plate.
The utility model has the beneficial effects that connecting the connection and insulation between copper strips and transition copper strips by core group, make electricity
Stream is imported from the middle part of core group copper strips, is conducted respectively to the upper and lower part of core group, is uniformly distributed electric current in core group,
The case where to avoid the occurrence of capacitor upper overheat.
Detailed description of the invention
Fig. 1 is utility model diagram；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is capacitor core group schematic diagram in Fig. 1；
In figure, 1, capacitor core group, 2, transition copper strips, 3, core group connection copper strips, insulating element between 4, copper strips, 5, insulation
Plate, 6, extraction electrode, 7, capacitor case, 8, insulation filling medium.
Specific embodiment
With reference to the accompanying drawing, the technical scheme in the utility model embodiment is clearly and completely described.Obviously,
The described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments.Based on the utility model
In embodiment, those of ordinary skill in the art's every other embodiment without making creative work belongs to
The protection scope of the utility model.
Embodiment 1: as shown in Figure 1-3, the high frequency capacitor of homogeneous current distribution, it includes capacitor case 7, draws electricity
Pole 6, capacitor core group 1 and filling and the insulation filling substance 8 between capacitor case and capacitor core group, the capacitor core
Group connects the connection conducting of copper strips 3 by core group, and soldering, butt-joint or riveting have transition copper strips in the middle part of the core group connection copper strips
2, the transition copper strips is connected with extraction electrode, is equipped with insulating element between copper strips between the core group connection copper strips and transition copper strips
4, insulating element is insulating paper/insulated paint/polypropylene film or epoxy plate between copper strips.
Embodiment 2: the difference from embodiment 1 is that being equipped with insulation board 5 between core group connection copper strips and capacitor core group, absolutely
Listrium is insulating paper, insulated paint, polypropylene film or epoxy plate.
Embodiment 3: the difference from embodiment 1 is that the end of transition copper strips, which has, is included in insulating element interior bending
Portion, the bending part connect in the middle part of copper strips with core group and are fixedly connected.
Embodiment 4: as shown in figure 3, the difference with embodiment 3 is that insulating element and insulation board are linked together to form " Contraband "
Word structure.
Above-described embodiment can according to need any combination, as long as obtained scheme, which does not conflict, belongs to the utility model
In protection scope.
Connection and insulation between copper strips are connected by transition copper strips and core group, leads electric current in the middle part of core group copper strips
Enter, conducted respectively to the upper and lower part of core group, be uniformly distributed electric current in core group, to avoid the occurrence of on capacitor
The case where portion overheats.
Claims (7)
1. the high frequency capacitor of homogeneous current distribution, it includes capacitor case (7), extraction electrode (6), capacitor core group (1)
And filling and the insulation filling substance (8) between capacitor case and capacitor core group, it is characterized in that: the capacitor core group is logical
Core group connection copper strips (3) connection conducting is crossed, is fixedly connected with transition copper strips (2), the transition in the middle part of the core group connection copper strips
Copper strips is connected with extraction electrode, is equipped with insulating element (4) between copper strips between the core group connection copper strips and transition copper strips.
2. the high frequency capacitor of homogeneous current distribution as described in claim 1, it is characterized in that: in the middle part of core group connection copper strips
Pass through soldering, butt-joint or riveting between transition copper strips.
3. the high frequency capacitor of homogeneous current distribution as described in claim 1, it is characterized in that: core group connection copper strips and electricity
Insulation board (5) are equipped between container core group.
4. the high frequency capacitor of homogeneous current distribution as described in claim 1, it is characterized in that: the end of the transition copper strips has
Have and insulating element between copper strips is included in interior bending part, the bending part connect in the middle part of copper strips with core group and is fixedly connected.
5. the high frequency capacitor of homogeneous current distribution as claimed in claim 3, it is characterized in that: between the copper strips insulating element and
Insulation board is linked together to form " Contraband " word structure.
6. the high frequency capacitor of homogeneous current distribution as described in claim 1, it is characterized in that: insulating element is between the copper strips
Insulating paper/insulated paint/polypropylene film or epoxy plate.
7. the high frequency capacitor of homogeneous current distribution as claimed in claim 3, it is characterized in that: the insulation board be insulating paper/
Insulated paint/polypropylene film or epoxy plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920179214.8U CN209374277U (en) | 2019-02-01 | 2019-02-01 | The high frequency capacitor of homogeneous current distribution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920179214.8U CN209374277U (en) | 2019-02-01 | 2019-02-01 | The high frequency capacitor of homogeneous current distribution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209374277U true CN209374277U (en) | 2019-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920179214.8U Active CN209374277U (en) | 2019-02-01 | 2019-02-01 | The high frequency capacitor of homogeneous current distribution |
Country Status (1)
| Country | Link |
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| CN (1) | CN209374277U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112435852A (en) * | 2020-11-11 | 2021-03-02 | 安徽富航电子科技发展有限公司 | Complete processing technology of high-frequency capacitor |
-
2019
- 2019-02-01 CN CN201920179214.8U patent/CN209374277U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112435852A (en) * | 2020-11-11 | 2021-03-02 | 安徽富航电子科技发展有限公司 | Complete processing technology of high-frequency capacitor |
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