CN112563030B - Non-inductive voltage-sharing damping voltage-dividing capacitor - Google Patents
Non-inductive voltage-sharing damping voltage-dividing capacitor Download PDFInfo
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- CN112563030B CN112563030B CN202011383882.6A CN202011383882A CN112563030B CN 112563030 B CN112563030 B CN 112563030B CN 202011383882 A CN202011383882 A CN 202011383882A CN 112563030 B CN112563030 B CN 112563030B
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- dividing
- resistor
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- 239000003990 capacitor Substances 0.000 title claims abstract description 55
- 238000013016 damping Methods 0.000 title claims abstract description 19
- 238000005192 partition Methods 0.000 claims description 38
- 230000001939 inductive effect Effects 0.000 abstract description 8
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- 239000004743 Polypropylene Substances 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 2
- QWUWMCYKGHVNAV-UHFFFAOYSA-N 1,2-dihydrostilbene Chemical compound C=1C=CC=CC=1CCC1=CC=CC=C1 QWUWMCYKGHVNAV-UHFFFAOYSA-N 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/40—Structural combinations of fixed capacitors with other electric elements, the structure mainly consisting of a capacitor, e.g. RC combinations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
- H01G2/14—Protection against electric or thermal overload
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/38—Multiple capacitors, i.e. structural combinations of fixed capacitors
Abstract
The invention relates to a non-inductive voltage-sharing damping voltage-dividing capacitor, which comprises a shell and a body arranged in the shell, wherein a plurality of voltage-dividing units are arranged in the body from top to bottom, each voltage-dividing unit comprises a resistor positioned above and a capacitor unit positioned below, and the resistors and the capacitor units of the same voltage-dividing unit are electrically connected in series; between two adjacent voltage division units, the capacitor unit of the voltage division unit positioned above is electrically connected with the resistor of the voltage division unit positioned below in series; and the top and the bottom of shell are provided with first wiring end and second wiring end respectively, first wiring end is connected with the input of the resistance of the top, the second wiring end is connected with the output of the capacitor unit of below. The invention adopts a sectional type resistor structure, so that the voltage corresponding to the output end of each resistor is gradually decreased from top to bottom, and the low-voltage side of the resistor can be effectively prevented from being punctured at the moment of switching on.
Description
Technical Field
The invention relates to the technical field of electronic components, in particular to a non-inductive voltage-sharing damping voltage-dividing capacitor.
Background
In the impact test, the damping voltage division capacitor is mainly used for measuring the output waveform and the output voltage amplitude of the impact generator. The damping voltage division capacitor comprises a shell and a body arranged in the shell, the body of the conventional damping voltage division capacitor is usually connected with a resistor in series at the topmost part of a capacitor element, and due to the transient characteristic of the capacitor, the low-voltage side of the resistor is easy to break down at the moment of switching on.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a non-inductive voltage-sharing damping voltage-dividing capacitor which adopts a sectional type resistor structure and effectively prevents the low-voltage side of a resistor from being broken down.
In order to solve the technical problem, the noninductive voltage-sharing damping voltage-dividing capacitor provided by the invention comprises a shell and a body arranged in the shell, wherein a plurality of voltage-dividing units are arranged in the body from top to bottom, each voltage-dividing unit comprises a resistor positioned above and a capacitor unit positioned below, and the resistors and the capacitor units of the same voltage-dividing unit are electrically connected in series; between two adjacent voltage division units, the capacitor unit of the voltage division unit positioned above is electrically connected with the resistor of the voltage division unit positioned below in series; and the top and the bottom of shell are provided with first wiring end and second wiring end respectively, first wiring end is connected with the input of the resistance of the top, the second wiring end is connected with the output of the capacitor unit of below.
The non-inductive voltage-sharing damping voltage-dividing capacitor adopts a sectional type resistor structure, so that the voltage corresponding to the output end of each resistor is gradually decreased from top to bottom, and the low-voltage side of the resistor can be effectively prevented from being broken down at the moment of switching on.
Preferably, the voltage dividing unit further includes a core for mounting the resistance and capacitance unit.
Preferably, the core body comprises two insulating plates arranged in parallel, an upper partition plate and a lower partition plate are arranged between the two insulating plates, the upper partition plate and the lower partition plate are arranged in parallel at an interval from top to bottom, the resistor is arranged at the top of the upper partition plate, and the capacitor unit is arranged between the upper partition plate and the lower partition plate.
Preferably, the upper separator and the lower separator are both conductive plates; in the same voltage division unit, the output end of the resistor and the input end of the capacitor unit are both electrically connected with the upper partition plate of the voltage division unit, and the output end of the capacitor unit is electrically connected with the lower partition plate of the voltage division unit; in two adjacent voltage division units, the input end of the resistor of the voltage division unit below is electrically connected with the lower partition plate of the voltage division unit above. The core body structure is convenient for the independent assembly of each partial pressure unit, and the assembly efficiency is high.
Preferably, in the same voltage dividing unit, insulating gaskets are tightly clamped between the top of the capacitor unit and the bottom of the upper partition plate, and between the bottom of the capacitor unit and the top of the lower partition plate.
Preferably, the body further includes two first fastening plates, the two first fastening plates are respectively located at two sides of the voltage dividing unit, and the first fastening plates are perpendicular to the insulating plate; the first fastening plate is connected with the upper partition plate and the lower partition plate of each partial pressure unit through screws.
Preferably, the body further includes a second fastening plate connected to an outer side of the insulating plate, and the second fastening plate is screwed to the insulating plate of each voltage dividing unit.
Preferably, the shell includes the open insulating cylinder in both ends, has the upper cover at the top lock of this insulating cylinder, has the lower cover at the bottom lock of this insulating cylinder enclose between insulating cylinder, upper cover and the lower cover and close and form and hold the chamber, the ware body sets up and should hold the intracavity, and is full of insulating oil in this holding the intracavity.
Preferably, the periphery of the top and the bottom of the insulating cylinder is sleeved with flanges, and the upper cover and the lower cover are respectively connected with corresponding flange screws.
Preferably, the periphery of the top and the bottom of the insulating cylinder is sleeved with a limiting ring, and the inner periphery of the flange is provided with a groove matched with the limiting ring. The design of the limiting ring can form a seam allowance for limiting the flange, so that the flange can be conveniently positioned, and the flange is reliably connected with the upper cover or the lower cover.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic structural diagram of an embodiment of a non-inductive voltage-sharing damping voltage-dividing capacitor according to the present invention;
FIG. 2 is a front view of a body of an embodiment of the present invention;
FIG. 3 is a left side view of the body of the embodiment of the present invention;
fig. 4 is a top view of a body of an embodiment of the present invention.
Description of the drawings:
1-a housing; 11-an insulating cylinder; 12-upper cover; 121-a first terminal; 13-lower cover; 131-a second terminal; 14-insulating oil; 15-a flange; 16-a stop collar; 2-a body; 21-a voltage dividing unit; 211-an insulating plate; 212-an upper baffle; 213-lower partition plate; 214-resistance; 215-a capacitive unit; 216-insulating spacers; 22-a first fastening plate; 23-second fastening plate.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1, the present embodiment provides a non-inductive voltage-sharing damping voltage-dividing capacitor, which includes a housing 1 and is disposed in the housing 1, the housing 1 includes an insulating cylinder 11 with two open ends, an upper cover 12 is fastened on the top of the insulating cylinder 11, a lower cover 13 is fastened on the bottom of the insulating cylinder 11, a containing cavity is formed by enclosing between the insulating cylinder 11, the upper cover 12 and the lower cover 13, and the containing cavity is filled with benzyl toluene and has insulating oil 14.
Specifically, insulating cylinder 11 is epoxy glass silk winding insulating cylinder, the periphery of its top and bottom all overlaps and is equipped with flange 15, upper cover 12 and lower cover 13 respectively with corresponding flange 15 screwed connection, and all overlap at the periphery of the top of insulating cylinder 11 and bottom and be equipped with spacing ring 16, the interior circumference of flange 15 is provided with the recess with this spacing ring 16 adaptation, when the installation, cramp this spacing ring 16 in the periphery of insulating cylinder 11, form the tang, be convenient for fix a position flange 15, make flange 15 and upper cover 12 or lower cover 13 be connected reliably.
The body 2 is disposed in the accommodating cavity, referring to fig. 2, 3 and 4, a plurality of voltage dividing units 21 are disposed from top to bottom inside the body 2, each voltage dividing unit 21 corresponds to one core, the core includes two insulating plates 211 made of polypropylene, which are disposed in parallel, an upper partition 212 and a lower partition 213 made of conductive metal are disposed between the two insulating plates 211, the upper partition 212 and the lower partition 213 are disposed in parallel, a resistor 214 is disposed on the top of the upper partition 212, and a capacitor unit 215 is disposed between the upper partition 212 and the lower partition 213, wherein the resistor 214 is a non-inductive wire-wound non-inductive voltage-sharing resistor.
In this embodiment, the resistor 214 and the capacitor unit 215 of the same voltage dividing unit 21 are electrically connected in series, between two adjacent voltage dividing units 21, the capacitor unit 215 of the voltage dividing unit 21 located above is electrically connected in series with the resistor 214 of the voltage dividing unit 21 located below, the upper cover 12 and the lower cover 13 are respectively provided with a first terminal 121 and a second terminal 131, the first terminal 121 is electrically connected with the input end of the uppermost resistor 214, and the second terminal 131 is electrically connected with the output end of the lowermost capacitor unit 215.
Specifically, the output end of the resistor 214 and the input end of the capacitor unit 215 of the same voltage dividing unit 21 are both electrically connected to the upper partition 212 of the voltage dividing unit, and the output end of the capacitor unit 215 is electrically connected to the lower partition 213 of the voltage dividing unit; in two adjacent voltage dividing units 21, the input end of the resistor 214 of the lower voltage dividing unit 21 is electrically connected to the lower partition 213 of the upper voltage dividing unit 21.
The capacitor unit 215 includes a plurality of capacitor elements stacked one above another, and the capacitor elements of the same voltage divider unit 21 are sequentially connected in series from top to bottom.
The inside resistance of ware body 2 of this embodiment adopts the sectional type design, improves the resistance of traditional single big resistance into a plurality of series connection's little resistance, can make the voltage that the output of each resistance corresponds from last to diminishing gradually down, then in the twinkling of an eye of closing a floodgate, can effectively prevent that the low pressure side of resistance from being punctured.
Further, in the same voltage dividing unit 21, insulating spacers 216 are tightly interposed between the top of the capacitor unit 215 and the bottom of the upper partition 212, and between the bottom of the capacitor unit 215 and the top of the lower partition 213.
Further, the body 2 further includes two first fastening plates 22 made of polypropylene, the two first fastening plates 22 are respectively located at two sides of the voltage dividing unit 21, and the first fastening plates 22 are perpendicular to the insulating plate 211; the first fastening plate 22 is connected with the upper partition plate 212 and the lower partition plate 213 of each partial pressure unit 21 by screws; a second fastening plate 23 is further connected to the outside of the insulating plate 211, and the second fastening plate 23 is screwed to the insulating plate 211 of each voltage dividing unit 21, and specifically, the second fastening plate 23 includes two polypropylene plates.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; these modifications and substitutions do not cause the essence of the corresponding technical solution to depart from the scope of the technical solution of the embodiments of the present invention, and are intended to be covered by the claims and the specification of the present invention.
Claims (7)
1. The utility model provides a noninductive voltage-sharing damping voltage-dividing capacitor, includes the shell and arranges the ware body in this shell inside, its characterized in that:
the voltage divider is characterized in that a plurality of voltage dividing units are arranged in the body from top to bottom, each voltage dividing unit comprises a resistor positioned above and a capacitor unit positioned below, and the resistors and the capacitor units of the same voltage dividing unit are electrically connected in series;
between two adjacent voltage division units, the capacitor unit of the voltage division unit positioned above is electrically connected with the resistor of the voltage division unit positioned below in series;
the top and the bottom of the shell are respectively provided with a first wiring end and a second wiring end, the first wiring end is electrically connected with the input end of the uppermost resistor, and the second wiring end is electrically connected with the output end of the lowermost capacitor unit;
the voltage division unit further comprises a core body for mounting the resistor and capacitor unit;
the core body comprises two insulating plates which are arranged in parallel, an upper clapboard and a lower clapboard are arranged between the two insulating plates, the upper clapboard and the lower clapboard are arranged in parallel from top to bottom at intervals, the resistor is arranged at the top of the upper clapboard, and the capacitor unit is arranged between the upper clapboard and the lower clapboard;
the shell includes the open insulating cylinder in both ends, and the top lock of this insulating cylinder has the upper cover, has the lower cover in the bottom lock of this insulating cylinder enclose between insulating cylinder, upper cover and the lower cover and close and form and hold the chamber, the ware body sets up and holds the intracavity at this, and is full of insulating oil in this holding the intracavity.
2. The noninductive voltage-sharing damping voltage-dividing capacitor as claimed in claim 1, wherein:
the upper partition plate and the lower partition plate are both conductive plates;
in the same voltage division unit, the output end of the resistor and the input end of the capacitor unit are both electrically connected with the upper partition plate of the voltage division unit, and the output end of the capacitor unit is electrically connected with the lower partition plate of the voltage division unit;
in two adjacent voltage division units, the input end of the resistor of the voltage division unit below is electrically connected with the lower partition plate of the voltage division unit above.
3. The noninductive voltage-sharing damping voltage-dividing capacitor as claimed in claim 2, wherein:
in the same voltage division unit, insulating gaskets are tightly clamped between the top of the capacitor unit and the bottom of the upper partition plate, and between the bottom of the capacitor unit and the top of the lower partition plate.
4. The noninductive voltage-sharing damping voltage-dividing capacitor as claimed in claim 1, wherein:
the device body further comprises two first fastening plates, the two first fastening plates are respectively positioned on two sides of the voltage dividing unit, and the first fastening plates are perpendicular to the insulating plate;
the first fastening plate is connected with the upper partition plate and the lower partition plate of each partial pressure unit through screws.
5. The noninductive voltage-sharing damping voltage-dividing capacitor as claimed in claim 4, wherein:
the body of the transformer also comprises a second fastening plate connected to the outer side of the insulating plate, and the second fastening plate is connected with the insulating plate of each voltage dividing unit through screws.
6. The noninductive voltage-sharing damping voltage-dividing capacitor as claimed in claim 1, wherein:
the periphery of the top and the bottom of the insulating cylinder is sleeved with flanges, and the upper cover and the lower cover are respectively connected with corresponding flange screws.
7. The noninductive voltage-sharing damping voltage-dividing capacitor as claimed in claim 6, wherein:
the periphery of the top and the bottom of the insulating cylinder is sleeved with a limiting ring, and the inner periphery of the flange is provided with a groove matched with the limiting ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011383882.6A CN112563030B (en) | 2020-12-01 | 2020-12-01 | Non-inductive voltage-sharing damping voltage-dividing capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011383882.6A CN112563030B (en) | 2020-12-01 | 2020-12-01 | Non-inductive voltage-sharing damping voltage-dividing capacitor |
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| Publication Number | Publication Date |
|---|---|
| CN112563030A CN112563030A (en) | 2021-03-26 |
| CN112563030B true CN112563030B (en) | 2022-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011383882.6A Active CN112563030B (en) | 2020-12-01 | 2020-12-01 | Non-inductive voltage-sharing damping voltage-dividing capacitor |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4034283A (en) * | 1975-08-28 | 1977-07-05 | The Machlett Laboratories, Incorporated | Compensated voltage divider |
| US4347539A (en) * | 1981-06-03 | 1982-08-31 | Westinghouse Electric Corp. | Electrical equipment protective apparatus with energy balancing among parallel varistors |
| JPH06242148A (en) * | 1993-02-22 | 1994-09-02 | Nippon Kogyo Univ | Impulse voltage measuring device |
| JP2001178009A (en) * | 1999-12-22 | 2001-06-29 | Shizuki Electric Co Inc | Capacitor-accumulating apparatus |
| RU2250471C1 (en) * | 2003-11-05 | 2005-04-20 | Открытое акционерное общество "Научно-исследовательский и проектно-конструкторский институт высоковольтного аппаратостроения" (ОАО "НИИВА") | Voltage divided for measurements conducting at commutation tests of high-voltage equipment and method of compensation of influence on division ratio of grounded voltage divider capacitance |
| CN101713793A (en) * | 2009-12-04 | 2010-05-26 | 中国西电电气股份有限公司 | Gas insulation-based DC high voltage measuring device |
| CN207264926U (en) * | 2017-06-09 | 2018-04-20 | 北京瑞恒新源投资有限公司 | Dry type equalizing capacitor, dry-type capacitance divider and high-voltage mutual inductor |
| CN213583521U (en) * | 2020-12-01 | 2021-06-29 | 上海上电电容器有限公司 | Noninductive voltage-sharing damping voltage-dividing capacitor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7123032B2 (en) * | 2003-12-04 | 2006-10-17 | Fieldmetrics, Inc. | Voltage sensor and dielectric material |
| DE102005035346A1 (en) * | 2004-08-19 | 2006-03-09 | Atmel Germany Gmbh | Power loss optimized high frequency coupling capacitor and rectifier circuit |
-
2020
- 2020-12-01 CN CN202011383882.6A patent/CN112563030B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4034283A (en) * | 1975-08-28 | 1977-07-05 | The Machlett Laboratories, Incorporated | Compensated voltage divider |
| US4347539A (en) * | 1981-06-03 | 1982-08-31 | Westinghouse Electric Corp. | Electrical equipment protective apparatus with energy balancing among parallel varistors |
| JPH06242148A (en) * | 1993-02-22 | 1994-09-02 | Nippon Kogyo Univ | Impulse voltage measuring device |
| JP2001178009A (en) * | 1999-12-22 | 2001-06-29 | Shizuki Electric Co Inc | Capacitor-accumulating apparatus |
| RU2250471C1 (en) * | 2003-11-05 | 2005-04-20 | Открытое акционерное общество "Научно-исследовательский и проектно-конструкторский институт высоковольтного аппаратостроения" (ОАО "НИИВА") | Voltage divided for measurements conducting at commutation tests of high-voltage equipment and method of compensation of influence on division ratio of grounded voltage divider capacitance |
| CN101713793A (en) * | 2009-12-04 | 2010-05-26 | 中国西电电气股份有限公司 | Gas insulation-based DC high voltage measuring device |
| CN207264926U (en) * | 2017-06-09 | 2018-04-20 | 北京瑞恒新源投资有限公司 | Dry type equalizing capacitor, dry-type capacitance divider and high-voltage mutual inductor |
| CN213583521U (en) * | 2020-12-01 | 2021-06-29 | 上海上电电容器有限公司 | Noninductive voltage-sharing damping voltage-dividing capacitor |
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| CN112563030A (en) | 2021-03-26 |
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Denomination of invention: Non inductive voltage equalization damping voltage divider capacitor Effective date of registration: 20231128 Granted publication date: 20220215 Pledgee: Bank of Communications Ltd. Shanghai Fengxian branch Pledgor: SHANGHAI SHANGDIAN CAPACITOR CO.,LTD. Registration number: Y2023980067690 |