CN2274811Y - Fuse switching monitor - Google Patents
Fuse switching monitor Download PDFInfo
- Publication number
- CN2274811Y CN2274811Y CN 95219813 CN95219813U CN2274811Y CN 2274811 Y CN2274811 Y CN 2274811Y CN 95219813 CN95219813 CN 95219813 CN 95219813 U CN95219813 U CN 95219813U CN 2274811 Y CN2274811 Y CN 2274811Y
- Authority
- CN
- China
- Prior art keywords
- fuse
- relay
- fracture
- wire
- active
- 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.)
- Expired - Fee Related
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- Fuses (AREA)
Abstract
The utility model discloses a fuse switching monitor, which is suitable for being used on electrical apparatuses with continuous work low voltage using railway signal apparatuses as main apparatuses. Once the fuse is blew, a magnetic reinforcing relay can switch on normally open contact points of three sets of contacts, completing the automatic switch of a main fuse and a spare fuse, fuse breaking indication, and an alarming function. The utility model has the advantages of simple structure, strong practicality, convenient and reliable operation, few specification, and wide applicability.
Description
The utility model relates to a kind of fuse fracture of wire conversion and expression warning device automatically, is applicable to that railway signals equipment is on master's the non-stop run low voltage electrical equipment.
Fuse is the indispensable part of electric equipment, and is particularly important to the electric equipment of non-stop run.In case fuse because of loose contact, aging, moment reason fracture of wire such as overcurrent damage, very harmful to electric equipment, the lighter has a strong impact on production, weight person jeopardizes safety.Railway signals equipment is the command system of train operation, and the fuse fracture of wire has constituted great threat to the production and the safety of railway transportation.
The purpose of this utility model is to utilize the redundant technique principle, designs a kind of fuse conversion monitor of practicality, under main fuse fracture of wire situation, connect rapidly to be equipped with fuse, and send fracture of wire and represent and reports to the police, thus the non-stop run of guarantee electric equipment.
The utility model adopts following design:
Fuse conversion monitor is by active and standby cartridge fuse F
1, F
2, relay mJ and active and standby fracture of wire are represented B
1, B
2Form Deng part.One of active and standby cartridge fuse links to each other, and the other end is connected across magnetic reinforcing relay mJ and main contact normally opened contact J in parallel with it respectively
1Two ends, main fracture of wire is represented B
1Auxiliary contact normally opened contact J through serial connection relay mJ
2The back is in parallel with power supply, is equipped with fracture of wire and represents B
2Be equipped with cartridge fuse F
2In parallel; The auxiliary contact normally opened contact J of relay mJ
3Constitute warning circuit with the peripheral hardware central fire alarm control panel.
The magnetic reinforcing relay that transducer adopts is equipped with magnetic sheet at iron core pole shoe and armature residual gap, and has the hole that hand-reset is used along the iron core axis.Be provided with two binding posts 7,8 at the relay coil two ends, also be provided with two auxiliary connection terminals 2,3 simultaneously, in order to align different polarity of voltages.
The active and standby fracture of wire of conversion monitor is represented B
1, B
2All pass through resistance current limliting forming circuit, fracture of wire represents to adopt nonpolarity light-emitting component.
At ordinary times, magnetic reinforcing relay mj no current passes through, and can not move.As main fuse pipe F
1During fusing, magnetic reinforcing relay mj action, the normally opened contact J of closed three groups of contacts
1, J
2, J
3, finish the automatically conversion and fracture of wire is represented and warning function of active and standby fuse.
The utility model is owing to adopt above-mentioned design, thereby has plurality of advantages.
At first, by iron core pole shoe and armature residual gap device magnetic sheet, improved the working sensitivity and the contact force of magnetic reinforcing relay at magnetic reinforcing relay mj.So just can in very wide voltage range, work, be fit to the needs of different operating voltage; The relay contact contact is good, has stronger shock resistance.By the perforate of iron core axis, the hand-reset button is set, after getting rid of, fault restores again.
Circuit has only used the high relay of reliability, two kinds of basic components and parts of resistance, the element of weak rapid wear such as diode-less.Circuit is simple, and the temporary impact electric current is had bigger ability to bear, has overcome other type transducer may puncture active and standby cartridge fuse and diode simultaneously because of temporary impact electric current or thunderbolt problem.
Owing to adopt the combining of magnetic reinforcing relay of nonpolarity light-emitting component and wide operating range, be provided with main and auxiliary four binding posts simultaneously at the coil two ends of relay, change terminals and just can align different polarity of voltages, can adapt to various voltages of AC and DC and direct current opposed polarity requirements of one's work so guaranteed same specification fuse transducer.
In sum, the utlity model has simple in structure, convenient and practical, reliable operation, advantage such as the few and purposes of specification is wide.
Fig. 1 is the design principle figure of the utility model circuit.
Embodiment: load FZ is provided with main fuse pipe F1 and is equipped with cartridge fuse F2.Main fuse pipe F1 links to each other with load FZ at ordinary times, constitutes the current supply circuit under the normal condition.In case main fuse pipe F1 fusing, magnetic reinforcing relay mJ picks up rapidly by being equipped with cartridge fuse F2 and load FZ, by main contact normally opened contact J
1Constitute and be equipped with cartridge fuse F
2Another current supply circuit with load FZ.After the magnetic reinforcing relay picked up, armature was held by magnetic sheet, can not restore auxiliary contact normally opened contact J automatically
2Closure makes main fuse pipe F
1Fracture of wire represent luminous; And by auxiliary contact normally opened contact J
3Closure, the logical alarm circuit at a distance of structure sends sound, light warning.Be equipped with cartridge fuse F
2When intact, be equipped with fuse indication B
2Be equipped with cartridge fuse F
2Bypass, light-emitting component are not luminous.Be equipped with cartridge fuse F
2Fracture of wire is equipped with fracture of wire and represents B
2By current-limiting resistance R
2, R
3Forming circuit, luminous expression.When polarity of voltage was interchange or direct current positive potential, binding post 2,8 linked to each other, and 3,7 link to each other; When polarity of voltage was the direct current negative potential, binding post 2,7 linked to each other, 3,8 link to each other.After magnetic reinforcing relay mJ picks up, must treat main fuse pipe F
1Change and good after, can make main fuse pipe F by the manual reset button
1Again resume work, eliminate simultaneously and report to the police.
Claims (4)
1, a kind of fuse conversion monitor is by active and standby cartridge fuse F
1, F
2, relay mJ and active and standby fracture of wire are represented B
1, B
2Form Deng part, it is characterized in that one of active and standby cartridge fuse links to each other, the other end is connected across magnetic reinforcing relay mJ and main contact normally opened contact J in parallel with it respectively
1Two ends; Main fracture of wire is represented B
1Through serial connection relay mJ auxiliary contact normally opened contact J
2The back is in parallel with power supply, is equipped with fracture of wire and represents B
2Be equipped with cartridge fuse F
2In parallel; The auxiliary contact normally opened contact J of relay mJ
3Constitute warning circuit with the peripheral hardware central fire alarm control panel.
2, fuse according to claim 1 conversion monitor is characterized in that at its iron core pole shoe and armature residual gap magnetic sheet being housed the magnetic reinforcing relay mJ that adopts in the change-over circuit, and having the hole that hand-reset is used along the iron core axis.
3, fuse conversion monitor according to claim 1 and 2 is characterized in that the coil two ends of magnetic reinforcing relay mJ are provided with two binding posts 7,8, also is provided with two auxiliary connection terminals 2,3 simultaneously, in order to levelling different potentials polarity.
4, fuse according to claim 1 conversion monitor is characterized in that active and standby fracture of wire represents B
1, B
2All pass through resistance current limliting forming circuit, and all adopt nonpolarity light-emitting component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95219813 CN2274811Y (en) | 1995-08-11 | 1995-08-11 | Fuse switching monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95219813 CN2274811Y (en) | 1995-08-11 | 1995-08-11 | Fuse switching monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2274811Y true CN2274811Y (en) | 1998-02-18 |
Family
ID=33867895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95219813 Expired - Fee Related CN2274811Y (en) | 1995-08-11 | 1995-08-11 | Fuse switching monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2274811Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109624892A (en) * | 2018-12-19 | 2019-04-16 | 安徽江淮汽车集团股份有限公司 | A kind of pair electrical box |
-
1995
- 1995-08-11 CN CN 95219813 patent/CN2274811Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109624892A (en) * | 2018-12-19 | 2019-04-16 | 安徽江淮汽车集团股份有限公司 | A kind of pair electrical box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |