CN107978501A - A kind of solid fuse - Google Patents
A kind of solid fuse Download PDFInfo
- Publication number
- CN107978501A CN107978501A CN201711211996.0A CN201711211996A CN107978501A CN 107978501 A CN107978501 A CN 107978501A CN 201711211996 A CN201711211996 A CN 201711211996A CN 107978501 A CN107978501 A CN 107978501A
- Authority
- CN
- China
- Prior art keywords
- fuse
- inner cone
- chamber
- cone plug
- solid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/05—Component parts thereof
- H01H85/143—Electrical contacts; Fastening fusible members to such contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/20—Bases for supporting the fuse; Separate parts thereof
- H01H85/2015—Bases for supporting the fuse; Separate parts thereof for plug-in type fuses
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/20—Bases for supporting the fuse; Separate parts thereof
- H01H85/2025—Bases for supporting the fuse; Separate parts thereof for fuses with conical end contacts, e.g. fuses used on motor vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/0241—Structural association of a fuse and another component or apparatus
Landscapes
- Fuses (AREA)
Abstract
The invention discloses a kind of solid fuse, including fuse chamber, first inner cone plug and the second inner cone plug, wherein, first inner cone plug is connected with fuse chamber and the second inner cone plug, and the first inner cone plug is used to seal fuse chamber, in addition, fuse chamber is connected with fuse, and the second inner cone plug is connected with outlet cable.The solid fuse proposed by the application can be to avoid in the prior art by fuse for a long time in circuit so that fuse surface produces dirt; the problem of phenomena such as oxidation and then influence circuit safety, realize hermetically sealed and short-circuit protection the dual purpose to fuse.
Description
Technical field
This application involves technical field of electricity, more particularly to a kind of solid fuse.
Background technology
With the rapid development of society, the electrified ratio in daily life is also continuously increased therewith, daily in order to meet
Life should not be underestimated with the reliability powered in work, substation in the effect provided played in stable power-supplying.
Wherein, substation is the place for changing voltage.The effect of substation is the electric energy in order to which power plant is issued
Be transported to place farther out, first voltage raised, is changed into high-voltage electricity, nearby voltage is reduced on demand again to user, for
Family uses.And in substation, such as the equipment such as high-tension switch cabinet all needs to provide operation power, but due to operating high pressure
During cabinet, temporarily without low-tension supply, then staff sets the house transformer of a capacity very little in high-voltage board, so that
It is supplied to high-voltage board required first power supply when operating.
Due to the capacity very little of house transformer in substation, fuse is taken to be protected as circuit in the prior art
Shield, wherein, fuse is can to exceed setting in circuital current to melt simultaneously breaking current afterwards for a period of time, so that disconnecting circuit
A kind of protection electric appliance.However, the fuse used in the prior art is since directly connection uses in circuit, during longtime running
The problems such as big dust, oxidation occurs in fuse surface, can not only influence the break performance of fuse, also there is insulation hidden danger.
Therefore, a kind of solid fuse how is designed, becomes those skilled in the art and compels problem to be solved.
The content of the invention
Inserted the present invention provides a kind of solid fuse, including by fuse chamber, the first inner cone plug and the second inner cone
Head, wherein, the first inner cone plug is connected with fuse chamber and the second inner cone plug, and the first inner cone plug, which is used to seal, to fuse
Device chamber, in addition, fuse chamber is connected with fuse, the second inner cone plug is connected with outlet cable.
Preferably, further include：3rd inner cone plug, wherein, the 3rd inner cone plug is connected with arrester.
Preferably, further include：Spring, wherein, fuse chamber is connected with fuse and spring.
Preferably, further include：Inner cone chamber, flexible circuit conductor, wherein, fuse chamber is connected with inner cone chamber and flexible circuit conductor.
Preferably, the first inner cone plug is connected with the second inner cone plug and the 3rd inner cone plug by flexible circuit conductor.
Preferably, further include：Gauze screen, wherein, gauze screen is connected with flexible circuit conductor.
Preferably, further include：Nut, wherein, nut is connected with fuse bottom of chamber portion.
Preferably, further include：Epoxide resin material is surrounded by outside the solid fuse.
Correspondingly, the invention also provides a kind of design method of solid fuse, including：
The fuse of fuse intracavitary is sealed by the first inner cone plug,
Electric current reaches the outlet cable being connected with the second inner cone plug by fuse.
Compared with prior art, technical solution proposed by the invention includes fuse chamber, the first inner cone plug and
Two inner cone plugs, wherein, the first inner cone plug is connected with fuse chamber and the second inner cone plug, and the first inner cone plug is used for
Fuse chamber is sealed, in addition, fuse chamber is connected with fuse, the second inner cone plug is connected with outlet cable.Pass through this
The solid fuse for applying proposing can be to avoid in the prior art by fuse for a long time in circuit so that fusing
Device surface produces dirt, phenomena such as oxidation and then the problem of influencing circuit safety, realize to the hermetically sealed of fuse and
The dual purpose of short-circuit protection.
Brief description of the drawings
Fig. 1 is a kind of side structure schematic diagram of solid fuse proposed by the present invention；
Fig. 2 is a kind of positive structure schematic of solid fuse proposed by the present invention；
Fig. 3 is a kind of bottom schematic view of solid fuse proposed by the present invention；
Fig. 4 is a kind of schematic top plan view of solid fuse proposed by the present invention.
Wherein, 1, inner cone chamber, 2, fuse chamber, the 3, the 3rd inner cone plug, the 4, first inner cone plug, the 5, second inner cone inserts
Head, 6, flexible circuit conductor, 7, gauze screen, 8, spring, 9, fuse, 10, nut.
Embodiment
In view of the problems of the prior art, the present invention proposes a kind of multiplexing light receiving element.
The application is further described below in conjunction with attached drawing, but not as the restriction to the application, hereafter in order to retouch
State conveniently, it is consistent that cited " on ", " under ", "left", "right" are equal to the directions such as the upper and lower, left and right of attached drawing in itself, hereinafter
" first ", " second " etc. to be distinguish between in description, not other particular meanings.
It is as shown in Figure 1 a kind of side structure schematic diagram of solid fuse proposed by the present invention, is illustrated in figure 2 this hair
A kind of positive structure schematic of solid fuse of bright proposition；
Understood by Fig. 1, Fig. 2, a kind of solid fuse that the embodiment of the present application proposes, including：Fuse chamber, in first
Plug and the second inner cone plug are bored, wherein：
First inner cone plug is connected with fuse chamber and the second inner cone plug, and the first inner cone plug is used to seal described
Fuse chamber；
Fuse chamber is connected with fuse, and the second inner cone plug is connected with outlet cable.
A kind of solid fuse in the application can carry out short circuit applied in the electric system of 35KV to circuit and equipment
Protection and overload protection.
It should be noted that a kind of outside for solid fuse that the application proposes is surrounded by epoxide resin material.
Wherein, as shown in Figure 1, the import of solid fuse is inner cone chamber 1, wherein, inner cone chamber 1 is mainly used for isolating out
Connection connects, that is to say, that in concrete application scene, can be connected to the device of on-off circuit in inner cone chamber 1, it is necessary to specific
Illustrate, as seen from Figure 1, inner cone chamber 1 uses taper design, to facilitate the dynamics at enlarged contact interface, the opposing party
Face, can also be more uniformly distributed the pressure that the intermediate seal in inner cone chamber 1 covers, to realize that it is close that electric current entrance preferably insulate
Envelope.
Shown in Fig. 2, the center of solid fuse is fuse chamber 2, it is necessary to explanation, inner cone chamber 1 and fuse
The outside of chamber 2 is surrounded by epoxide resin material, wherein, fuse chamber 2 is mainly used for installing and replaces fuse 9, specifically,
After electric current exceedes setting for a period of time in circuit, 9 fuse melting of fuse so as to disconnecting circuit, to realize to circuit and
The protection of electrical equipment.After fuse 9 disconnects, it can more renew fuse in fuse intracavitary by staff.In addition, this
In application, be attached between inner cone chamber 1 and fuse chamber 2 using flexible circuit conductor 6, specifically, compared in conventional art herein
If being firm connection, since inserts is easy to stress when die-filling tool, such as when inner cone chamber 1 is subject to horizontal power, molten
Disconnected device chamber 2 is subject to longitudinal power.And when inner cone chamber 1 and fuse chamber 2 demould, inserts wants release force, return.This
The problem of being easy for producing air gap between inserts and epoxy resin, therefore partial discharge can be produced.
In addition in this application, gauze screen 7 is designed with the outside of flexible circuit conductor 6, wherein, gauze screen 7 is mainly used for solving
The partial discharge problem that flexible circuit conductor 6 is produced with epoxy with reference to bad.Specifically, since flexible circuit conductor material is thinner, with asphalt mixtures modified by epoxy resin
When fat combines, slight air gap can be produced in faying face, when partial discharge is tested, air gap is easy to breakdown and produces partial discharge.Therefore, this Shen
It please select to be designed with gauze screen 7 in the outside of flexible circuit conductor 6 and can be very good to solve the problems, such as such partial discharge, also greatly change pair
Creepage distance and the problem of electrical distance in the prior art.
In specific application scenarios, the application is connected on the top of fuse chamber 2 with spring 8, wherein, spring 8 is beryllium
The spring of bronze material, since beryllium-bronze has very high intensity, hardness, elastic limit and fatigue limit, and elastic hysteresis is small
And there are corrosion-resistance characteristics, therefore, fuse 9 is connected by the application with spring 8, namely at the top of fuse chamber 2, to ensure
Fuse 9 connects reliable after installing.
Further, fuse chamber 2 is connected with the first inner cone plug 4 by flexible circuit conductor 6, wherein, the first inner cone plug 4
Installation fuse 9 is also used for, specifically, fuse 9 is inserted into fuse chamber 2 by staff from the first inner cone plug 4
Top, then, after fuse 9 is connected with spring 8, is tightened in the lower end nut 12 of fuse chamber 2, then by the first inner cone
The standard inner cone closure of plug 4 is blocked 4 bottom of the first inner cone plug, so as to reach the effect of the first inner cone plug 4 sealing
Fruit.It should be noted that when fuse 9 needs replacing, the inner cone of the first inner cone plug 4 can be blocked on taking out and repeating
Step installation is stated, details are not described herein.
Further, the application is additionally provided with the second inner cone plug 5 and the 3rd inner cone plug 3, wherein, the second inner cone
Plug 5 is used to connect outlet cable, and for the outlet cable to provide the cable of power supply to house transformer, house transformer is offer
The transformer of the first power supply needed for electric substation.In addition, the 3rd inner cone plug 3 is used to be connected with arrester.To prevent when lightning-arrest
Device aging or it is breakdown when, power cord phase line shorted to earth in circuit, is acted by fuse, ensures follow-up electricity consumption
Normal operation.
It should be noted that in the application, the first inner cone plug 4 passes through 6 and second inner cone plug 5 and the 3rd of flexible circuit conductor
Inner cone plug 3 is connected, wherein, three inner cone plugs are attached by the flexible circuit conductor 6 with gauze screen 7, can not only be solved
The partial discharge problem that certainly flexible circuit conductor 6 is produced with epoxy resin with reference to bad, can also eliminate the Hard link used in conventional art
When internal stress problem.
In specific application scenarios, high pressure enters by entering inner cone chamber 1 after disconnecting switch, and by flexible circuit conductor 6
Into fuse chamber 2, after the fuse 9 by being connected with spring 10, into the first inner cone plug 4, the second inner cone plug 5
And the 3rd inner cone plug 3, and house transformer is entered by the outlet cable that the second inner cone plug 5 connects.When in circuit
Be abnormal after causing circuital current excessive, the fuse 9 in fuse chamber 2 melts and then breaking current, reach to circuit with
And the purpose of the short-circuit protection of electrical equipment.
As shown in figure 3, the bottom schematic view of the solid fuse proposed for the application, wherein centrally located the
One inner cone plug 4 is used for after installing or replacing fuse 9, by inner cone closure closure in the bottom of the first inner cone plug 4, with up to
To the purpose being isolated from fuse among air.Meanwhile the both sides of the first inner cone plug 4 are provided with the second inner cone plug 5
And the 3rd inner cone plug 3, specifically, the second inner cone plug is used to install outlet cable, this cable is used for house transformer
Power supply.3rd inner cone plug 3 is used for zinc oxide surge arresters.
As shown in figure 4, the schematic top plan view of the solid fuse proposed for the application, it can be seen that the application proposes
Solid fuse mainly use cylinder design, be conducive to being uniformly distributed for electric field to reach, partial discharge amount can be significantly improved
Qualification rate.
By applying a kind of solid fuse proposed by the invention, fuse can be grown to avoid using in the prior art
Time is exposed in circuit so that fuse produces dirt, real phenomena such as oxidation and then the problem of influencing circuit safety
Hermetically sealed and short-circuit protection the dual purpose to fuse is showed.
Claims (9)
- A kind of 1. solid fuse, applied in the electric system of 35KV, it is characterised in that including：Fuse chamber, the first inner cone Plug and the second inner cone plug, wherein：The first inner cone plug is connected with the fuse chamber and the second inner cone plug, the first inner cone plug For sealing the fuse chamber；The fuse chamber is connected with fuse, and the second inner cone plug is connected with outlet cable.
- 2. a kind of solid fuse as claimed in claim 1, it is characterised in that further include：3rd inner cone plug, wherein：The 3rd inner cone plug is connected with arrester.
- A kind of 3. solid fuse as claimed in claim 1, it is characterised in that the fuse chamber is connected with fuse, Further include：Spring, wherein：The fuse chamber is connected with the fuse and the spring.
- 4. a kind of solid fuse as claimed in claim 1, it is characterised in that further include：Inner cone chamber, flexible circuit conductor, wherein：The fuse chamber is connected with the inner cone chamber and the flexible circuit conductor.
- A kind of 5. solid fuse as claimed in claim 4, it is characterised in that including：The first inner cone plug is connected with the second inner cone plug and the 3rd inner cone plug by the flexible circuit conductor Connect.
- 6. a kind of solid fuse as claimed in claim 5, it is characterised in that further include：Gauze screen, wherein：The gauze screen is connected with the flexible circuit conductor.
- 7. a kind of solid fuse as claimed in claim 1, it is characterised in that further include：Nut, wherein：The nut is connected with fuse bottom of chamber portion.
- 8. a kind of solid fuse as claimed in claim 1, it is characterised in that further include：Bag outside the solid fuse It is with epoxide resin material.
- A kind of 9. design method of solid fuse, applied to any one of claim 1-8, it is characterised in that the method Further include：The fuse of the fuse intracavitary is sealed by the first inner cone plug；Electric current reaches the outlet cable being connected with the second inner cone plug by the fuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711211996.0A CN107978501A (en) | 2017-11-28 | 2017-11-28 | A kind of solid fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711211996.0A CN107978501A (en) | 2017-11-28 | 2017-11-28 | A kind of solid fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107978501A true CN107978501A (en) | 2018-05-01 |
Family
ID=62011987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711211996.0A Pending CN107978501A (en) | 2017-11-28 | 2017-11-28 | A kind of solid fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107978501A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112216576A (en) * | 2019-07-09 | 2021-01-12 | 平高集团有限公司 | Fuse-arrester high-voltage combined structure, fuse and power distribution and transformation system |
| CN112435890A (en) * | 2020-12-07 | 2021-03-02 | 北京双杰电气股份有限公司 | Solid full-sealed full-insulation circuit breaker device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101183628A (en) * | 2007-12-07 | 2008-05-21 | 张若雷 | Fuse device for protection voltage mutual inductor of gas insulation metal closed switchgear |
| CN201601100U (en) * | 2009-12-03 | 2010-10-06 | 北京双杰电气股份有限公司 | Fuse cutout for solid insulating full-closed combined electrical appliance |
| CN202930342U (en) * | 2012-11-19 | 2013-05-08 | 北京清畅电力技术股份有限公司 | High-voltage solid insulation fuse unit |
| CN204230739U (en) * | 2014-11-21 | 2015-03-25 | 国家电网公司 | Solid insulation unit switch equipment |
| CN104577857A (en) * | 2014-12-18 | 2015-04-29 | 珠海康晋电气有限公司 | Fully-insulated and fully-sealed solid-cabinet fuse tube |
| CN206250141U (en) * | 2016-12-24 | 2017-06-13 | 浙江鲁高电力科技有限公司 | A kind of outdoor enclosed type expulsion fuse |
-
2017
- 2017-11-28 CN CN201711211996.0A patent/CN107978501A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101183628A (en) * | 2007-12-07 | 2008-05-21 | 张若雷 | Fuse device for protection voltage mutual inductor of gas insulation metal closed switchgear |
| CN201601100U (en) * | 2009-12-03 | 2010-10-06 | 北京双杰电气股份有限公司 | Fuse cutout for solid insulating full-closed combined electrical appliance |
| CN202930342U (en) * | 2012-11-19 | 2013-05-08 | 北京清畅电力技术股份有限公司 | High-voltage solid insulation fuse unit |
| CN204230739U (en) * | 2014-11-21 | 2015-03-25 | 国家电网公司 | Solid insulation unit switch equipment |
| CN104577857A (en) * | 2014-12-18 | 2015-04-29 | 珠海康晋电气有限公司 | Fully-insulated and fully-sealed solid-cabinet fuse tube |
| CN206250141U (en) * | 2016-12-24 | 2017-06-13 | 浙江鲁高电力科技有限公司 | A kind of outdoor enclosed type expulsion fuse |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112216576A (en) * | 2019-07-09 | 2021-01-12 | 平高集团有限公司 | Fuse-arrester high-voltage combined structure, fuse and power distribution and transformation system |
| CN112435890A (en) * | 2020-12-07 | 2021-03-02 | 北京双杰电气股份有限公司 | Solid full-sealed full-insulation circuit breaker device |
| CN112435890B (en) * | 2020-12-07 | 2023-08-08 | 北京双杰电气股份有限公司 | Solid full-sealed full-insulation circuit breaker device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180501 |
|
| RJ01 | Rejection of invention patent application after publication |