CN202839514U - Circuit break alarm for fuses - Google Patents
Circuit break alarm for fuses Download PDFInfo
- Publication number
- CN202839514U CN202839514U CN 201220171352 CN201220171352U CN202839514U CN 202839514 U CN202839514 U CN 202839514U CN 201220171352 CN201220171352 CN 201220171352 CN 201220171352 U CN201220171352 U CN 201220171352U CN 202839514 U CN202839514 U CN 202839514U
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- Prior art keywords
- contact
- fuse
- fuses
- circuit
- low
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- Expired - Lifetime
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Abstract
The utility model relates to a circuit break alarm for fuses, belonging to the field of circuit technology. The circuit break alarm comprises multiple fuses and a low-current breaker, wherein the fuses are connected with the low-current breaker; the low-current breaker is equipped with multiple contacts and multiple auxiliary contacts, wherein the amount the auxiliary contacts is corresponding to that of the contacts; each fuse is in parallel connection with one contact in the low-current breaker, wherein a corresponding auxiliary contact is connected when one contact is disconnected; and the output terminal of each contact of the low-current breaker is connected with the input terminal of an acoustic-optic alarm. Usage of the circuit break alarm is not limited by popping heights of thimbles of the fuses, and it is not required to adjust a microswitch each time a fuse is replaced, thereby ensuring smooth emission of alarming signals, and enhancing the reliability of circuit protection.
Description
Technical field
The utility model relates to a kind of fuse broken circuit alarmer, belongs to the circuit engineering field.
Background technology
Fuse is a kind of overcurrent protective device that is installed in the circuit, guarantees the electric elements of circuit safety operation, and it is to surpass setting after a period of time according to electric current, makes the melt fusing with the heat that himself produces, thereby circuit is disconnected.At present the fuse broken circuit alarmer generally is at fuse the fusing thimble to be set, and backs down the sensitive switch above the thimble when fuse blows, sends alarm signal.But present method is subjected to the fuse thimble to eject the restriction (all needing when for example at every turn changing fuse sensitive switch is adjusted) of height and the adjustment of sensitive switch position; all can cause can not sending of alarm signal in case thimble ejects the not in place of position adjustment highly not high or sensitive switch, thereby cause the circuit protection function poor reliability.
Summary of the invention
The utility model provides a kind of fuse broken circuit alarmer, is subjected to the restriction that the fuse thimble ejects highly and the sensitive switch position is adjusted in the prior art to solve, the problem that alarm signal can not be sent, and the utility model adopts following technical scheme for this reason:
A kind of fuse broken circuit alarmer, comprise: a plurality of fuses link to each other with a minimum circuit breaker, described minimum circuit breaker be provided with a plurality of contacts and with the auxiliary contact of the corresponding number of described a plurality of contacts, each fuse is in parallel with a contact in the described minimum circuit breaker, auxiliary contact corresponding with it when a contact disconnects is connected, and the output of each contact links to each other with the input of audible-visual annunciator in the described minimum circuit breaker.
The technical scheme that the utility model execution mode provides need not to be subjected to the fuse thimble to eject the restriction of height, adjusts sensitive switch when also need not to change fuse at every turn, has guaranteed sending smoothly of alarm signal, thereby has strengthened the reliability of circuit protection work.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of a kind of fuse broken circuit alarmer described in the utility model;
Fig. 2 is the structural representation of a kind of fuse described in the utility model integral body in operating circuit;
Fig. 3 is the concrete mode of connection schematic diagram of a kind of audible-visual annunciator described in the utility model.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
A kind of fuse broken circuit alarmer that provides at the utility model execution mode, as shown in Figure 1, comprise: a plurality of fuses 11 link to each other with a minimum circuit breaker 12, described minimum circuit breaker be provided with a plurality of contacts 121 and with the auxiliary contact 122 of the corresponding number of described a plurality of contacts, each fuse 11 is in parallel with a contact in the described minimum circuit breaker 12, auxiliary contact 122 corresponding with it when a contact 121 disconnects is connected, and the output of each contact 121 links to each other with the input of audible-visual annunciator 13 in the described minimum circuit breaker 12.
Further, described contact 121 disconnects when the electric current of the contact 121 place circuit that are communicated with surpasses maximum load current.
During specific works, each contact in each fuse is connected, only have when the electric current of certain fuse surpasses setting make melt fusing with the heat that self produces after, because the electric current in the circuit at the contact place of this fuse parallel connection has surpassed the electric current that its maximum can be carried, then this contact disconnects, thereby the signal of its disconnection input audible-visual annunciator is realized reporting to the police, because this contact disconnects, then the auxiliary contact corresponding with it connected.Provided as shown in Figure 2 the integrated circuit structure chart that carries out work in the physical circuit that fuse is in.
As shown in Figure 3, provided the concrete mode of connection of audible-visual annunciator, concrete input control device is corresponding with the detector terminal to link to each other, in order to guarantee the fail safe of equipment, also need controller and detector ground connection all, in signal input part and the utility model in the minimum circuit breaker 12 output of each contact 121 link to each other.
The technical scheme that the utility model execution mode provides need not to be subjected to the fuse thimble to eject the restriction of height; adjust sensitive switch when also need not to change fuse at every turn; minimum circuit breaker in parallel solves signal output at the circuit breaker two ends; that simple circuit is reliable; guaranteed sending smoothly of alarm signal; in order to shut down rapidly and the looking up the fault source, thereby strengthened the reliability of circuit protection work.
The above; it only is the better embodiment of the utility model; but protection range of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model embodiment discloses; the variation that can expect easily or replacement all should be encompassed within the protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claim.
Claims (1)
1. fuse broken circuit alarmer, it is characterized in that, comprise: a plurality of fuses link to each other with a minimum circuit breaker, described minimum circuit breaker be provided with a plurality of contacts and with the auxiliary contact of the corresponding number of described a plurality of contacts, each fuse is in parallel with a contact in the described minimum circuit breaker, auxiliary contact corresponding with it when a contact disconnects is connected, and the output of each contact links to each other with the input of audible-visual annunciator in the described minimum circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220171352 CN202839514U (en) | 2012-04-19 | 2012-04-19 | Circuit break alarm for fuses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220171352 CN202839514U (en) | 2012-04-19 | 2012-04-19 | Circuit break alarm for fuses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202839514U true CN202839514U (en) | 2013-03-27 |
Family
ID=47951158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220171352 Expired - Lifetime CN202839514U (en) | 2012-04-19 | 2012-04-19 | Circuit break alarm for fuses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202839514U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103985617A (en) * | 2014-06-04 | 2014-08-13 | 苏州市南光电器有限公司 | Intelligent fuse |
| CN104183439A (en) * | 2014-08-14 | 2014-12-03 | 苏州市南光电器有限公司 | Intelligent fuse protector |
| CN108336724A (en) * | 2018-04-24 | 2018-07-27 | 广东电网有限责任公司 | A kind of DC fuse circuit |
-
2012
- 2012-04-19 CN CN 201220171352 patent/CN202839514U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103985617A (en) * | 2014-06-04 | 2014-08-13 | 苏州市南光电器有限公司 | Intelligent fuse |
| CN103985617B (en) * | 2014-06-04 | 2016-02-17 | 苏州市南光电器有限公司 | A kind of Intelligent fuse |
| CN104183439A (en) * | 2014-08-14 | 2014-12-03 | 苏州市南光电器有限公司 | Intelligent fuse protector |
| CN108336724A (en) * | 2018-04-24 | 2018-07-27 | 广东电网有限责任公司 | A kind of DC fuse circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20180316 Granted publication date: 20130327 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20181207 Granted publication date: 20130327 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |