CN202013862U - Fuse monitoring device - Google Patents
Fuse monitoring device Download PDFInfo
- Publication number
- CN202013862U CN202013862U CN2011200746216U CN201120074621U CN202013862U CN 202013862 U CN202013862 U CN 202013862U CN 2011200746216 U CN2011200746216 U CN 2011200746216U CN 201120074621 U CN201120074621 U CN 201120074621U CN 202013862 U CN202013862 U CN 202013862U
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- Prior art keywords
- fuse
- data acquisition
- judgment module
- acquisition circuit
- circuit
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Abstract
The utility model discloses a fuse monitoring device which comprises a fuse. The fuse monitoring device is characterized in that the fuse monitoring device also comprises a data acquisition circuit, a logical judgment module and a drive circuit, wherein the data acquisition circuit is connected with the fusing body of the fuse and is used for monitoring the voltage of two ends of the fusing body; the logical judgment module is connected with the data acquisition circuit and judges whether the fusing body is fused or not according to the voltage data transmitted by the data acquisition circuit; and the drive circuit is connected with the logical judgment module. The fuse monitoring device has a simple structure, is convenient to use and can monitor the fuse state in real time.
Description
Technical field
The utility model relates to a kind of fuse, especially a kind of fuse supervising device.
Background technology
Fuse is a kind of overcurrent protective device.Fuse mainly is made up of melt and fusion tube and outer part such as filled.During use, fuse is series in the protected circuit, when the electric current of protected circuit surpasses setting, and through behind the certain hour, the heat fusing melt by melt self produces disconnects circuit, thereby plays the effect of protection.Fuse divides the electrical equipment of deenergizing with metallic conductor as melt; be series in the circuit; when overload or short circuit current when the melt, melt self will generate heat and fuse, thereby electric power system, various electrical equipment and household electrical appliance have all been played the certain protection effect.Have the inverse time lag characteristic, served as live stream hour, fusing time is long; When overload current was big, fusing time was short.Therefore, recover normal to electric current in certain overload current scope, fuse can not fuse, and can continue to use.Fuse mainly is made up of melt, shell and bearing 3 parts, and wherein melt is the key element of control operating chacteristics.Existing fuse does not also have the electronic installation that carries out real time and on line monitoring, and this will be unfavorable for the operating state of remote centralized monitor fuse-link.
Summary of the invention
The utility model purpose is: a kind of fuse supervising device that can carry out real time and on line monitoring is provided.
The technical solution of the utility model is: a kind of fuse supervising device, comprise fuse, and it is characterized in that, also comprise:
Data acquisition circuit, described data acquisition circuit links to each other with the fuse-link of fuse, is used to monitor the voltage at described melt two ends;
Logic judgment module, described logic judgment module links to each other with described data acquisition circuit, judges according to the voltage data that data acquisition circuit sends whether described fuse-link fuses;
Drive circuit, described drive circuit links to each other with logic judgment module.
Further, described data acquisition circuit is the switching circuit that resistance, diode and optical coupler constitute, and described switching circuit connects the melt and the logic judgment module of described fuse.
Further, described drive circuit comprises triode, diode and relay, and described triode drives relay work, described relay described diode in parallel.
Further, described logic judgment module is the 74HC86D chip.
The utility model has the advantages that:
Simple in structure, easy to use, can be convenient to management to the fuse real time and on line monitoring.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is a fuse supervising device circuit diagram of the present utility model.
Embodiment
Embodiment: fuse supervising device as shown in Figure 1 comprises melt RF1, the RF2 and the RF3 that are arranged on A, B, the C three-phase circuit.Melt RF1 two ends are connected to resistance R 1, R4 respectively, diode D1, D4 and optical coupler; When RF1 did not fuse, the RF1 two ends all were high level, diode D1 and not conducting of D4, and optical coupler is not worked, and A1, B1 point is a low level, makes the 2Y end of logic judgment module 74HC86D chip be output as " 0 "; When RF1 fuses, not conducting of D1, the D4 conducting, the A1 point is a low level, the B1 point is a high level, makes the 2Y end of logic judgment module 74HC86D chip be output as " 1 ".The 2Y end links to each other with triode Q2 by resistance R 14, and Q2 is used for driving relay J 2, and parallel diode D8 on the relay J 2 is used for protecting this relay.When the 2Y end was output as " 1 ", Q2 drove relay J 2 actions.Identical on the circuit connecting of other two-phases and operation principle and the RF1.Fuse supervising device of the present utility model links to each other with computer by interface circuit, thus the operating state of centralized monitor fuse-link at a distance.
Above embodiment only is the utility model a kind of execution mode wherein, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (4)
1. a fuse supervising device comprises fuse, it is characterized in that, also comprises:
Data acquisition circuit, described data acquisition circuit links to each other with the fuse-link of fuse, is used to monitor the voltage at described melt two ends;
Logic judgment module, described logic judgment module links to each other with described data acquisition circuit, judges according to the voltage data that data acquisition circuit sends whether described fuse-link fuses;
Drive circuit, described drive circuit links to each other with logic judgment module.
2. fuse supervising device according to claim 1 is characterized in that, described data acquisition circuit is the switching circuit that resistance, diode and optical coupler constitute, and described switching circuit connects the fuse-link and the logic judgment module of described fuse.
3. fuse supervising device according to claim 1 is characterized in that described drive circuit comprises triode, diode and relay, and described triode drives relay work, described relay described diode in parallel.
4. fuse supervising device according to claim 1 is characterized in that, described logic judgment module is the 74HC86D chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200746216U CN202013862U (en) | 2011-03-21 | 2011-03-21 | Fuse monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200746216U CN202013862U (en) | 2011-03-21 | 2011-03-21 | Fuse monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202013862U true CN202013862U (en) | 2011-10-19 |
Family
ID=44784477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200746216U Expired - Fee Related CN202013862U (en) | 2011-03-21 | 2011-03-21 | Fuse monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202013862U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102495364A (en) * | 2011-12-18 | 2012-06-13 | 施耐德万高（天津）电气设备有限公司 | Detection device of three-phase fuse |
| CN103325636A (en) * | 2013-07-15 | 2013-09-25 | 天津威图电气设备有限公司 | Fuse protector set and fuse protector |
| 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 |
| WO2021081755A1 (en) * | 2019-10-29 | 2021-05-06 | Suzhou Littelfuse Ovs Co., Ltd. | Systems, circuits, and methods for determining status of fuse or relay |
-
2011
- 2011-03-21 CN CN2011200746216U patent/CN202013862U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102495364A (en) * | 2011-12-18 | 2012-06-13 | 施耐德万高（天津）电气设备有限公司 | Detection device of three-phase fuse |
| CN103325636A (en) * | 2013-07-15 | 2013-09-25 | 天津威图电气设备有限公司 | Fuse protector set and fuse protector |
| 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 |
| WO2021081755A1 (en) * | 2019-10-29 | 2021-05-06 | Suzhou Littelfuse Ovs Co., Ltd. | Systems, circuits, and methods for determining status of fuse or relay |
| US11802892B2 (en) | 2019-10-29 | 2023-10-31 | Suzhou Littelfuse Ovs Co., Ltd. | Systems, circuits, and methods for determining status of fuse or relay |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111019 Termination date: 20160321 |