CN205564694U - High voltage current limiting fuse is used in gamut protection - Google Patents

High voltage current limiting fuse is used in gamut protection Download PDF

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Publication number
CN205564694U
CN205564694U CN201620301701.3U CN201620301701U CN205564694U CN 205564694 U CN205564694 U CN 205564694U CN 201620301701 U CN201620301701 U CN 201620301701U CN 205564694 U CN205564694 U CN 205564694U
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China
Prior art keywords
fuse
base
handle
current
fusion tube
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CN201620301701.3U
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Chinese (zh)
Inventor
曾立新
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Xi'an Steady Fuse Co Ltd
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Xi'an Steady Fuse Co Ltd
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Abstract

The utility model provides a high voltage current limiting fuse is used in gamut protection, including base, fuse and handle, the base is an one -way open -ended drum die bed seat, and fuse sets up inside the base, and the handle is planted in the base, is fixed with two conducting rings on the inner wall of base, and two conducting rings are located the middle part and the afterbody of base respectively, fuse includes fusion tube and the metal cap of cover at the fusion tube both ends, it has the mount pad to overlap respectively on the metal cap at fuse both ends, is provided with the contact spring on two mount pads respectively, contact spring and conducting ring contact, be provided with the skeleton in the fusion tube, the series connection coiling has silver -colored fuse piece and silver -colored fuse on the skeleton, and it has the quartz sand still to fill in the fusion tube. The utility model has the advantage of simple and novel structure, not only can cut -off big short -circuit fault electric current, can cut -off low overload current simultaneously, have the gamut protectiveness.

Description

Gamut protection high-voltage and current-limitation fuse
Technical field
This utility model belongs to fuse technologies field, is specifically related to a kind of gamut protection high-voltage and current-limitation and melts Disconnected device.
Background technology
Fuse is mainly used in short circuit and the overload protection of the electrical equipment such as circuit and power transformer.Work as electric power System due to overload cause electric current exceed a certain numerical value, electrical equipment or circuit be short-circuited accident time, fusing Device can rapidly action within the time of regulation, cut off the electricity supply to play the effect of protection equipment, it is ensured that normal portion Divide the destruction exempting from short circuit accident.Generally being likely to occur two kinds of faults in transformator, one is short trouble, One is low overcurrent fault.Conventional high-voltage alternating limiting fuse cut-offs short circuit current ability greatly, and And have significant current limiting effect, but it is difficult to reliably cut-off low overcurrent, thus still suffer from dangerous because of Element.
Summary of the invention
The purpose of this utility model is to provide a kind of gamut protection high-voltage and current-limitation fuse, existing to overcome The ability that limiting fuse cut-offs short circuit current is big, but the problem being difficult to cut-off low overcurrent.
The technical solution adopted in the utility model is:
Gamut protection high-voltage and current-limitation fuse, including base, fuse member and handle, base is a list To the cylinder type base of opening, fuse member is arranged on chassis interior, and handle is plugged in base, the one of handle End is provided with snap close, and the other end of handle is connected with fuse member, and snap close is positioned at the outside of base；Base interior Being fixed with two conducting rings on wall, two conducting rings lay respectively at middle part and the afterbody of base；Fuse member includes Fusion tube and be enclosed within the metal cap at fusion tube two ends；Mounting seat it is cased with respectively on the metal cap at fuse member two ends, two Being respectively arranged with contact spring in mounting seat, contact spring contacts with conducting ring；Skeleton it is provided with in fusion tube, On skeleton, series connection is wound with fuse piece and fuse, is filled with quartz sand in fusion tube.
Wherein, mounting seat is made up of cylindrical base and the boss being fixed on matrix one end；It is provided with in matrix First groove, the metal cap of fuse member is positioned at the first groove of matrix；Contact spring is arranged on outside matrix On periphery.
It addition, the mounting seat being enclosed within fuse member two ends lays respectively at middle part and the afterbody of base；It is positioned at middle part Mounting seat connects handle and fuse member；The other end of handle is provided with the second groove, and the boss of mounting seat is embedded In the second groove；In the mounting seat of afterbody between fuse member and base inner wall.
The outside of above-mentioned base is provided with line sheet, and line sheet is connected with conducting ring.
It is characterized in that, the periphery of handle has been radially arranged a ring annular groove, and annular groove is embedded with close Seal, sealing ring is in sealing contact with base inner wall.
Further characterized in that, fusion tube is also cased with a guide ring, guide ring is fixed on the inwall of base.
Wherein, skeleton is mica frame.
Wherein, fuse piece is silver fuse piece, and fuse is silver fuse wire.
The beneficial effects of the utility model are: simple in construction is novel, not only can cut-off big short-circuit current, Low overcurrent can be cut-off simultaneously, there is gamut protectiveness, applied range, meet China's power industry The needs of development.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model fuse；
Fig. 2 is the structural representation of handle in this utility model fuse；
Fig. 3 is the structural representation of mounting seat in this utility model fuse member；
Fig. 4 is the structural representation of fuse member in this utility model fuse.
In figure: 1-base, 2-fuse member, 3-handle, 4-conducting ring, 5-fusion tube, 6-metal cap, 7-mounting seat, 8-contact spring, 9-skeleton, 10-fuse piece, 11-fuse, 12-matrix, 13-boss, 14-the first groove, 15- Second groove, 16-line sheet, 17-sealing ring, 18-guide ring, 19-snap close.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described in detail:
As it is shown in figure 1, this utility model provides a kind of gamut protection high-voltage and current-limitation fuse, the end of including Seat 1, fuse member 2 and handle 3, base 1 is the cylinder type base of a unidirectional opening, and fuse member 2 is arranged Inside base 1, handle 3 is plugged in base 1；As in figure 2 it is shown, one end of handle 3 is provided with lock Button 19, the other end of handle 3 is provided with the second groove 15, and the other end of handle 3 is connected with fuse member 2, Snap close 19 is positioned at the outside of base 1, except the remainder of snap close 19 outdoor handle 3 is respectively positioned on base 1 inside； The periphery of handle 3 has been radially arranged a ring annular groove, and annular groove is embedded with sealing ring 17, sealing ring 17 contact with base 1 inner wall sealing, and sealing ring 17 is by playing between annular groove inwall and base 1 inwall The effect of interference compression, reaches the effect of handle 3 and base 1 contact site seal isolation, significantly improves molten The sealing property of disconnected device.Two conducting rings 4 and a guide ring 18 it is fixed with on the inwall of base 1, two Conducting ring 4 lays respectively at middle part and the afterbody of base 1；Fuse member 2 includes fusion tube 5 and is enclosed within fusion tube 5 liang The metal cap 6 of end；Mounting seat 7 it is cased with respectively on the metal cap 6 at fuse member 2 two ends, two mounting seats 7 On be respectively arranged with contact spring 8, contact spring 8 contacts with conducting ring 4；Guide ring 18 is enclosed within fusion tube 5 On, its effect is when changing fuse member 2, at fuse member 2 during base 1 is inserted into, to fusing Part 2 play the guiding role.The outside of base 1 is provided with line sheet 16, and line sheet 16 is connected with conducting ring 4, Line sheet 16 is for being connected with external electrical cable.The effect of snap close 19 is, the lock when changing fuse member 2 Go up or open fuse.
As it is shown on figure 3, mounting seat 7 is by cylindrical base 12 and the boss 13 groups being fixed on matrix 12 one end Become；Being provided with the first groove 14 in matrix 12, it is first recessed that the metal cap 6 of fuse member 2 is positioned at matrix 12 In groove 14；Contact spring 8 is arranged on the outer circumference surface of matrix 12.It is enclosed within the installation at fuse member 2 two ends Seat 7 lays respectively at middle part and the afterbody of base 1；The mounting seat 7 being positioned at middle part connects handle 3 and fuse member 2, The boss 13 of mounting seat 7 is embedded in the second groove 15 of handle 3 end；It is positioned at the mounting seat 7 of afterbody Between fuse member 2 and base 1 inwall.
As shown in Figure 4, being provided with skeleton 9 in fusion tube 5, skeleton 9 is mica frame, skeleton 9 is connected around It is shaped with fuse piece 10 and fuse 11, in fusion tube 5, is also filled with quartz sand；Fuse piece 10 is silver fuse piece, fuse 11 For silver fuse wire, silver fuse wire is welded with the alloy material of M metallurgical effect.Silver fuse piece is that backup type melt plays short circuit Protective effect, silver fuse wire is that air-generating melt plays overload protective function, and quartz sand is carried interest arc effect.
This utility model fuse is sealed in the circuit by protection electrical equipment (such as: transformator), when in circuit When there is overload or short trouble, due to the heat effect of electric current so that the melt of fuse melts rapidly, vapour Change, gap breakdown, arcing occur subsequently, quartz sand extinguishes electric arc, disjunction circuit, reach protection circuit Purpose.This utility model fuse can cut-off between the specified drop-out current causing melt galvanic current reliably Any fault current, it is to cut-off big short circuit current with current-limiting fuse, and non-limiting fuse cut-offs Less overcurrent, both integrally combine and obtain the feature that gamut is cut-off.
This utility model fuse is applicable to indoor exchange 50Hz, conduct in rated voltage 12～24KV system Transformator and the overload or short-circuit protection of other power equipment.

Claims (8)

1. gamut protection high-voltage and current-limitation fuse; including base (1), fuse member (2) and handle (3); base (1) is the cylinder type base of a unidirectional opening; it is internal that fuse member (2) is arranged on base (1); handle (3) is plugged in base (1); it is characterized in that: one end of described handle (3) is provided with snap close (19); the other end of handle (3) is connected with fuse member (2), and snap close (19) is positioned at the outside of base (1)；Being fixed with two conducting rings (4) on the inwall of described base (1), two conducting rings (4) lay respectively at middle part and the afterbody of base (1)；Described fuse member (2) includes fusion tube (5) and is enclosed within the metal cap (6) at fusion tube (5) two ends；Mounting seat (7) it is cased with respectively on the metal cap (6) at fuse member (2) two ends, being respectively arranged with contact spring (8) on two mounting seats (7), contact spring (8) contacts with conducting ring (4)；Being provided with skeleton (9) in described fusion tube (5), the upper series connection of skeleton (9) is wound with fuse piece (10) and fuse (11), and fusion tube is filled with quartz sand in (5).
Gamut protection high-voltage and current-limitation fuse the most according to claim 1, it is characterised in that: described mounting seat (7) is by cylindrical base (12) and is fixed on the boss (13) of matrix (12) one end and forms；Being provided with the first groove (14) in described matrix (12), the metal cap (6) of fuse member (2) is positioned at first groove (14) of matrix (12)；Described contact spring (8) is arranged on the outer circumference surface of matrix (12).
Gamut protection high-voltage and current-limitation fuse the most according to claim 2, it is characterised in that: the mounting seat (7) being enclosed within fuse member (2) two ends lays respectively at middle part and the afterbody of base (1)；The mounting seat (7) being positioned at middle part connects handle (3) and fuse member (2)；The other end of handle (3) is provided with the second groove (15), and the boss (13) of mounting seat (7) is embedded in the second groove (15)；The mounting seat (7) being positioned at afterbody is positioned between fuse member (2) and base (1) inwall.
Gamut protection high-voltage and current-limitation fuse the most according to claim 1, it is characterised in that: the outside of described base (1) is provided with line sheet (16), and line sheet (16) is connected with conducting ring (4).
Gamut protection high-voltage and current-limitation fuse the most according to claim 1; it is characterized in that: the periphery of described handle (3) has been radially arranged a ring annular groove; annular groove is embedded with sealing ring (17), and sealing ring (17) contacts with base (1) inner wall sealing.
Gamut protection high-voltage and current-limitation fuse the most according to claim 1, it is characterised in that: being also cased with a guide ring (18) on described fusion tube (5), guide ring (18) is fixed on the inwall of base (1).
Gamut protection high-voltage and current-limitation fuse the most according to claim 1, it is characterised in that: described skeleton (9) is mica frame.
Gamut protection high-voltage and current-limitation fuse the most according to claim 1, it is characterised in that: described fuse piece (10) is silver fuse piece, and fuse (11) is silver fuse wire.
CN201620301701.3U 2016-04-12 2016-04-12 High voltage current limiting fuse is used in gamut protection Active CN205564694U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620301701.3U CN205564694U (en) 2016-04-12 2016-04-12 High voltage current limiting fuse is used in gamut protection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620301701.3U CN205564694U (en) 2016-04-12 2016-04-12 High voltage current limiting fuse is used in gamut protection

Publications (1)

Publication Number Publication Date
CN205564694U true CN205564694U (en) 2016-09-07

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Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
CN (1) CN205564694U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108847380A (en) * 2018-09-14 2018-11-20 扬州国电华欣电气设备有限公司 A kind of high-voltage and current-limitation fuse
WO2019085768A1 (en) * 2017-10-30 2019-05-09 Aem科技(苏州)股份有限公司 Miniature super surface mount fuse and manufacturing method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019085768A1 (en) * 2017-10-30 2019-05-09 Aem科技(苏州)股份有限公司 Miniature super surface mount fuse and manufacturing method thereof
US11069501B2 (en) 2017-10-30 2021-07-20 Aem Components (Suzhou) Co., Ltd. Miniature super surface mount fuse and manufacturing method thereof
CN108847380A (en) * 2018-09-14 2018-11-20 扬州国电华欣电气设备有限公司 A kind of high-voltage and current-limitation fuse

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C14 Grant of patent or utility model
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Oil-immersed total-range protective high-voltage current limiting fuse with signal apparatus

Effective date of registration: 20170706

Granted publication date: 20160907

Pledgee: Xi'an innovation financing Company limited by guarantee

Pledgor: XI'AN STEADY FUSE Co.,Ltd.

Registration number: 2017990000595

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Date of cancellation: 20180403

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Registration number: 2017990000595

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Denomination of utility model: Oil-immersed total-range protective high-voltage current limiting fuse with signal apparatus

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