CN203260892U - Series/parallel-gap over-voltage protector and combination thereof - Google Patents
Series/parallel-gap over-voltage protector and combination thereof Download PDFInfo
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- CN203260892U CN203260892U CN 201320292491 CN201320292491U CN203260892U CN 203260892 U CN203260892 U CN 203260892U CN 201320292491 CN201320292491 CN 201320292491 CN 201320292491 U CN201320292491 U CN 201320292491U CN 203260892 U CN203260892 U CN 203260892U
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Abstract
The utility model provides a series/parallel-gap over-voltage protector and a combination thereof. With the series/parallel-gap over-voltage protector and the combination thereof adopted, problems of complex structure, low reliability and high residual voltage of an existing over-voltage protector can be mainly solved. The series/parallel-gap over-voltage protector comprises a shell; at least one parallel unit, at least one resistor sheet and at least one discharge gap are arranged inside the shell; the parallel unit comprises a resistor sheet group and a discharge gap group; an insulating piece is arranged between the discharge gap group and the resistor sheet group; the upper end of the discharge gap group is electrically connected with the upper end of the resistor sheet group; and the lower end of the discharge gap group is electrically connected with the lower end of the resistor sheet group. The series/parallel-gap over-voltage protection device and the combination thereof are advantageous in simple structure, reliable protection, reduced residual voltage and improved protection level.
Description
Technical field
The utility model relates to a kind of overvoltage protection device, is specifically related to a kind of connection in series-parallel gap overvoltage protection device and combination thereof, belongs to the overvoltage protection field.
Background technology
Continuous growth along with electric power system user and power consumption, occur frequently and the power consumption equipment factor such as start and stop frequently with electrification, cause phylogenetic overvoltage day by day serious, guarantee that the insulation of electric equipment avoids superpotential infringement, ensure that the safety of electricity consumption more and more is subject to people's attention.
Over-voltage uses the metal oxide arrester of gapless and two kinds of structures of series gap more at present; for arrester without gaps; because the accelerated deterioration of resistor disc under the higher and long-time running voltage of charged pressure rate; the accident that has blast to damage during lightning arrester occurs, and the residual voltage of arrester without gaps too high (namely level of protection is low) can not well satisfy the requirement of insulation protection in addition.Lightning arrester for series gap; although well solved the deteriorated problem of chargeability and resistor disc, can prolong greatly the useful life of lightning arrester, its residual voltage is still too high; along with wearing out of protected apparatus insulated level, existing lightning arrester is difficult to effectively protect more.
In order to improve level of protection; reduce the residual voltage of overvoltage protection device; prolong the useful life of overvoltage protection device; the technical staff has proposed the overvoltage protection device of different imaginations; but present overvoltage protection device is the connectivity problem of solution gap not yet in effect and resistor disc all, can't make equipment in the requirement of satisfying electrical property simultaneously, satisfies again the requirement of mechanical strength and installing space; therefore, be badly in need of providing a kind of connection in series-parallel gap overvoltage protection device of simple in structure, dependable performance.
Summary of the invention
The utility model provides a kind of connection in series-parallel gap overvoltage protection device and combination thereof, has mainly solved existing overvoltage protection device complex structure, reliability is lower, residual voltage is higher problem.
Concrete technical solution of the present utility model is as follows:
The connection in series-parallel gap overvoltage protection device that the utility model provides comprises housing, and its special feature is: also be provided with at least one unit in parallel, at least one resistor disc and at least one discharging gap in the housing; Described unit in parallel comprises resistor disc group and discharging gap group, be provided with insulating part between discharging gap group and the resistor disc group, discharging gap group upper end is electrically connected with resistor disc group upper end, discharging gap group lower end is electrically connected with resistor disc group lower end, described resistor disc, discharging gap and units in series in parallel.
Above-mentioned insulating part is insulating cylinder, and insulating cylinder inside is provided with insulating barrier, and discharging gap group and resistor disc are assembled in insulating cylinder inside and place the both sides of insulating barrier.
Above-mentioned resistor disc group and/or discharging gap group two ends are provided with conductive spacer.
Above-mentioned connection in series-parallel gap overvoltage protection device also comprises disconnector, described disconnector and resistor disc, discharging gap and units in series in parallel.
Discharging gap group in the above-mentioned unit in parallel comprises at least one discharging gap, and when discharging gap when being a plurality of, a plurality of discharging gaps series connection are as a whole; Resistor disc group in the unit in parallel comprises at least one resistor disc, and when resistor disc when being a plurality of, a plurality of resistor discs are connected as a whole.
The connection in series-parallel gap overvoltage protection device combination that the utility model provides, comprise four overvoltage protection device groups, one end of four overvoltage protection device groups connects into a neutral point, the A of the other end of three overvoltage protection device groups and system wherein, B, C is connected, the other end ground connection of the 4th overvoltage protection device group, at least one group is connection in series-parallel gap overvoltage protection device group in described four overvoltage protection device groups, described connection in series-parallel gap overvoltage protection device group comprises at least one connection in series-parallel gap overvoltage protection device, its special feature is: described connection in series-parallel gap overvoltage protection device comprises housing, also is provided with at least one unit in parallel in the described housing, at least one resistor disc and at least one discharging gap; Described unit in parallel comprises resistor disc group and discharging gap group, be provided with insulating part between discharging gap group and the resistor disc group, discharging gap group upper end is electrically connected with resistor disc group upper end, discharging gap group lower end is electrically connected with resistor disc group lower end, described resistor disc, discharging gap and units in series in parallel.Above-mentioned insulating part is insulating cylinder, and insulating cylinder inside is provided with insulating barrier, and discharging gap group and resistor disc are assembled in insulating cylinder inside and place the both sides of insulating barrier.
Discharging gap group in the above-mentioned unit in parallel comprises at least one discharging gap, and when discharging gap when being a plurality of, a plurality of discharging gaps series connection are as a whole; Resistor disc group in the unit in parallel comprises at least one resistor disc, and when resistor disc when being a plurality of, a plurality of resistor discs are connected as a whole.
Above-mentioned resistor disc group and/or discharging gap group two ends are provided with conductive spacer.
Above-mentioned connection in series-parallel gap overvoltage protection device also comprises disconnector, described disconnector and resistor disc, discharging gap and units in series in parallel.
The utility model has the advantage of:
This connection in series-parallel gap overvoltage protection device and combining structure thereof are simple, protection is reliable, have reduced the residual voltage of protector, have improved level of protection.
This connection in series-parallel gap overvoltage protection device and combination thereof also can be set up disconnector as required; disconnector is as the particular device of overvoltage protection; when overvoltage protection device wears out or badly cause thermal runaway; disconnector moves rapidly; system's phase fault or ground connection have been avoided; also avoid simultaneously other harm because of the Explosion of on Arrester generation, improved stability and the fail safe of system's operation.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment one;
Fig. 2 is the structural representation of the utility model embodiment two;
Fig. 3 is the structural representation of the utility model embodiment three;
Fig. 4 is the structural representation of the utility model embodiment four;
Fig. 5 is the utility model cellular construction schematic diagram in parallel;
The accompanying drawing detail is as follows: the 1-housing; 2-unit in parallel; The 21-insulating part; The resistor disc of 22-unit in parallel; The discharging gap of 23-unit in parallel; The 24-wire; The 3-resistor disc; The 4-discharging gap; The 211-insulating cylinder; The 212-insulating barrier; The 213-conductive spacer.
Embodiment
Below in conjunction with drawings and the specific embodiments the present invention is described in detail:
Embodiment one:
This connection in series-parallel gap overvoltage protection device comprises housing, is provided with a unit in parallel, a resistor disc and a discharging gap in the housing, resistor disc, discharging gap and units in series in parallel.Wherein resistor disc can be selected metal oxide resistance or carborundum resistor disc, and discharging gap can be selected with the gap of parallel resistance and irradiation electrode, gas discharge ligament or dull and stereotyped gap, and shell can be selected porcelain overcoat or composite sheath.
Above-mentioned unit in parallel is made of a discharging gap, a resistor disc and an insulating cylinder, also can select insulation board to isolate, if select insulating cylinder, be provided with insulating barrier in the insulating cylinder, discharging gap and resistor disc are contained in insulating cylinder inside and place the both sides of insulating barrier, and insulating barrier is with discharging gap and resistor disc isolation; Simultaneously, the discharging gap upper end is electrically connected by wire with the resistor disc upper end, and the discharging gap lower end is electrically connected by wire with the resistor disc lower end; Barrel at insulating cylinder is provided with lead channels, and wire is connected by lead channels, avoids wire to contact with discharging gap with resistor disc, if select insulation board, connects wire and should be insulated conductor; In order to improve wire and discharging gap, the evenness at resistor disc contact place, can set up conductive spacer, conductive spacer can be arranged on two end faces of resistor disc in the unit in parallel, and/or be arranged on two of discharging gaps in the unit in parallel and carry out on the plane that wire is electrically connected, because wire generally adopts the mode of welding to connect, directly be welded on the out-of-flatness that can cause product structure on resistor disc or the discharging gap, thereby adopt conductive spacer directly to contact with resistor disc and/or discharging gap, and with wire bonds on conductive spacer, the structure of conductive spacer should guarantee at least that welding portion stretches out the wire bonds place of resistor disc and/or discharging gap, can adopt the modes such as large tracts of land or protrusion, the setting of conductive spacer just can guarantee the planarization of product after good connection and the wire bonds.
Can also set up disconnector according to actual conditions, disconnector and resistor disc, discharging gap, units in series in parallel, disconnector set up can the raising system stability and the fail safe of operation.
Unit in parallel, resistor disc and discharging gap in the overvoltage protection device of above-mentioned connection in series-parallel gap can be for one or more.Discharging gap and resistor disc in the unit in parallel also can be for one or more, and following embodiment describes this form in connection with schematic diagram.
Embodiment two:
This connection in series-parallel gap overvoltage protection device comprises housing, is provided with a unit in parallel, a resistor disc and a discharging gap in the housing, resistor disc, discharging gap and units in series in parallel.
Unit in parallel is made of two discharging gaps, two resistor discs and an insulating cylinder, be provided with insulating barrier in the insulating cylinder, it is inner and place the both sides of insulating barrier that two discharging gaps and two resistor discs are contained in insulating cylinder, and insulating barrier is with discharging gap and resistor disc isolation.
This embodiment is not limited to two, only describes with two, and is all identical with present embodiment structure and principle more than three and three.
Embodiment three:
This connection in series-parallel gap overvoltage protection device comprises housing, is provided with two each and every one unit in parallel, a resistor disc and a discharging gap in the housing, resistor disc, discharging gap and two units in series in parallel.
Unit in parallel is made of a discharging gap, a resistor disc and an insulating cylinder, is provided with insulating barrier in the insulating cylinder, and discharging gap and resistor disc are contained in insulating cylinder inside and place the both sides of insulating barrier, and insulating barrier is with discharging gap and resistor disc isolation.
Embodiment four:
This embodiment is above-mentioned three finished products that the embodiment individual devices is combined to form; it is the overvoltage protection device combination of a kind of connection in series-parallel gap; comprise four overvoltage protection device groups; one end of four groups connects into a neutral point; the A of the other end of three groups and system wherein; B; C is connected; the 4th group other end ground connection; at least one group is connection in series-parallel gap overvoltage protection device group in four overvoltage protection device groups; connection in series-parallel gap overvoltage protection device group comprises at least one parallel connection gaps overvoltage protection device, the parallel connection gaps overvoltage protection device can select embodiment one to three any one.Four overvoltage protection device groups, except connection in series-parallel overvoltage protection device assembly, other protector group can be gapless protector group, parallel connection gaps protector group or series gap protector group.
Claims (10)
1. a connection in series-parallel gap overvoltage protection device comprises housing, it is characterized in that: also be provided with at least one unit in parallel, at least one resistor disc and at least one discharging gap in the housing; Described unit in parallel comprises resistor disc group and discharging gap group, be provided with insulating part between discharging gap group and the resistor disc group, discharging gap group upper end is electrically connected with resistor disc group upper end, discharging gap group lower end is electrically connected with resistor disc group lower end, described resistor disc, discharging gap and units in series in parallel.
2. connection in series-parallel according to claim 1 gap overvoltage protection device, it is characterized in that: described insulating part is insulating cylinder, and insulating cylinder inside is provided with insulating barrier, it is inner and place the both sides of insulating barrier that discharging gap group and resistor disc are assembled in insulating cylinder.
3. connection in series-parallel according to claim 1 and 2 gap overvoltage protection device, it is characterized in that: described resistor disc group and/or discharging gap group two ends are provided with conductive spacer.
4. connection in series-parallel according to claim 3 gap overvoltage protection device, it is characterized in that: described connection in series-parallel gap overvoltage protection device also comprises disconnector, described disconnector and resistor disc, discharging gap and units in series in parallel.
5. connection in series-parallel according to claim 4 gap overvoltage protection device, it is characterized in that: the discharging gap group in the described unit in parallel comprises at least one discharging gap, when discharging gap when being a plurality of, a plurality of discharging gaps series connection are as a whole; Resistor disc group in the unit in parallel comprises at least one resistor disc, and when resistor disc when being a plurality of, a plurality of resistor discs are connected as a whole.
6. connection in series-parallel gap overvoltage protection device combination, comprise four overvoltage protection device groups, one end of four overvoltage protection device groups connects into a neutral point, the A of the other end of three overvoltage protection device groups and system wherein, B, C is connected, the other end ground connection of the 4th overvoltage protection device group, at least one group is connection in series-parallel gap overvoltage protection device group in described four overvoltage protection device groups, described connection in series-parallel gap overvoltage protection device group comprises at least one connection in series-parallel gap overvoltage protection device, it is characterized in that: described connection in series-parallel gap overvoltage protection device comprises housing, also is provided with at least one unit in parallel in the described housing, at least one resistor disc and at least one discharging gap; Described unit in parallel comprises resistor disc group and discharging gap group, be provided with insulating part between discharging gap group and the resistor disc group, discharging gap group upper end is electrically connected with resistor disc group upper end, discharging gap group lower end is electrically connected with resistor disc group lower end, described resistor disc, discharging gap and units in series in parallel.
7. connection in series-parallel gap overvoltage protection device combination according to claim 6; it is characterized in that: described insulating part is insulating cylinder; insulating cylinder inside is provided with insulating barrier, and discharging gap group and resistor disc are assembled in insulating cylinder inside and place the both sides of insulating barrier.
8. according to claim 6 or the combination of 7 described connection in series-parallel gap overvoltage protection devices, it is characterized in that: described resistor disc group and/or discharging gap group two ends are provided with conductive spacer.
9. connection in series-parallel gap overvoltage protection device combination according to claim 8, it is characterized in that: described connection in series-parallel gap overvoltage protection device also comprises disconnector, described disconnector and resistor disc, discharging gap and units in series in parallel.
10. connection in series-parallel according to claim 9 gap overvoltage protection device combination, it is characterized in that: the discharging gap group described unit in parallel in comprises at least one discharging gap, when discharging gap when being a plurality of, a plurality of discharging gaps are connected as a whole; Resistor disc group in the unit in parallel comprises at least one resistor disc, and when resistor disc when being a plurality of, a plurality of resistor discs are connected as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320292491 CN203260892U (en) | 2013-05-24 | 2013-05-24 | Series/parallel-gap over-voltage protector and combination thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320292491 CN203260892U (en) | 2013-05-24 | 2013-05-24 | Series/parallel-gap over-voltage protector and combination thereof |
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| Publication Number | Publication Date |
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| CN203260892U true CN203260892U (en) | 2013-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320292491 Expired - Lifetime CN203260892U (en) | 2013-05-24 | 2013-05-24 | Series/parallel-gap over-voltage protector and combination thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104599799A (en) * | 2014-12-27 | 2015-05-06 | 中国西电电气股份有限公司 | High-capacity overvoltage limiter core |
| CN108666055A (en) * | 2018-07-09 | 2018-10-16 | 西安神电电器有限公司 | A kind of resistance unit and the multicolumn lightning arrester connected in parallel comprising the resistance unit |
-
2013
- 2013-05-24 CN CN 201320292491 patent/CN203260892U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104599799A (en) * | 2014-12-27 | 2015-05-06 | 中国西电电气股份有限公司 | High-capacity overvoltage limiter core |
| CN108666055A (en) * | 2018-07-09 | 2018-10-16 | 西安神电电器有限公司 | A kind of resistance unit and the multicolumn lightning arrester connected in parallel comprising the resistance unit |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131030 |
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| CX01 | Expiry of patent term |