CN207067308U - A kind of short-circuit prediction meanss - Google Patents
A kind of short-circuit prediction meanss Download PDFInfo
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- CN207067308U CN207067308U CN201721047307.2U CN201721047307U CN207067308U CN 207067308 U CN207067308 U CN 207067308U CN 201721047307 U CN201721047307 U CN 201721047307U CN 207067308 U CN207067308 U CN 207067308U
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Abstract
The utility model discloses a kind of short-circuit prediction meanss, current sensor that the short-circuit prediction meanss include being arranged on electrical equipment L lines, the control module for being serially connected in electrical equipment L lines and solid-state relay on N lines, being connected with current sensor and solid-state relay circuit, the communication module being connected on control module output port.A kind of short-circuit prediction meanss of the utility model pass through real-time monitoring current, and according to current value size and the generation of change rate forecast short circuit, corresponding break-make control and warning information issue are carried out further according to short circuit current trend prediction result, it can be taken measures in the case where having short-circuit occurrence tendency but without dead short, the infringement at utmost preventing short circuit from triggering.
Description
Technical field
A kind of electrical safety monitoring device is the utility model is related to, more particularly to a kind of short-circuit prediction meanss.
Background technology
Short circuit, overload are one of main reasons of electrical fire, usually cause huge property loss and the person to people
Injury.And existing electrical control gear, such as air switch, electrothermal relay protection switch etc., all had occurred and that in short circuit
In the case of, passively take measures, although can play a protective role to a certain extent, can not fundamentally prevent the hair of short circuit
Raw, this still constantly can be obtained by evidence from electrical safety accident, thus it is carried out it is timely, effective predict and
Prevention and control are with regard to particularly necessary.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of short-circuit prediction meanss, and it can be set by monitoring electricity consumption
Standby line current situation, and short circuit prediction and prevention and control processing are made according to curent change trend in time.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical scheme that：
A kind of short-circuit prediction meanss, including be arranged on electrical equipment L lines current sensor, be serially connected in electrical equipment L
Line and solid-state relay on N lines, the control module being connected with current sensor and solid-state relay circuit, it is connected to control mould
Communication module on block output port, to detect electric current, the solid-state relay controls the current sensor to break-make,
The control module is believed to receive the signal of current sensor and make short-circuit trend prediction and output monitoring information and control
Number, the communication module to by control module output information access internet.A kind of short-circuit prediction meanss of the utility model are led to
Over-current sensor monitors the line current of electrical equipment in real time, and control module is according to current value size and change rate forecast short circuit
Generation, and break-make control can be carried out according to short circuit current trend prediction results operation solid-state relay and be entered by communication module
Row warning information is issued, and can be taken measures in the case where having short-circuit occurrence tendency but without dead short, at utmost
The infringement for preventing short circuit from triggering.
Preferably, the current sensor is Hall current sensor, and its model WCS1600, sensor measurement
Scope is wide, fast response time, and measurement accuracy is high, and the linearity is good, and dynamic property is good, and working band is wide.
Preferably, the control module is single-chip microcomputer.
Preferably, the single-chip microcomputer model STC15W408AS.
Preferably, the communication module is connected by internet with user PC ends or mobile terminal, it is easy to user to carry out
Remote information monitors.
Preferably, the communication module, which is RS485, turns RJ45 communication modules.
Preferably, the RS485 turns RJ45 communication module models LAN8720.
Preferably, the control module is connected with pre-alarm display device, it is easy to user timely, intuitively to obtain early warning letter
Breath.
Preferably, the exportable multistage pre-warning signal of pre-alarm display device is shown, be advantageous to user and obtain essence in time
True monitoring and warning information.
Preferably, the control module is also associated with the switch that electrically resumes operation, when electric state passes through manual maintenance
Recover normal, can be allowed by switch and electrically resumed operation.
Compared with prior art, a kind of beneficial effect of short-circuit prediction meanss of the utility model：By real-time monitoring current,
And according to current value size and the generation of change rate forecast short circuit, corresponding break-make is carried out further according to short circuit current trend prediction result
Control and warning information issue, can take measures in the case where having short-circuit occurrence tendency but without dead short, maximum
Degree prevents the infringement that short circuit triggers.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is a kind of schematic diagram of short-circuit prediction meanss of the utility model.
Embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
Any feature disclosed in this specification, unless specifically stated otherwise, can be equivalent by other or with similar purpose
Alternative features are replaced.I.e., unless specifically stated otherwise, each feature is an example in a series of equivalent or similar characteristics
.
As shown in figure 1, a kind of short-circuit prediction meanss of the utility model, including the electric current being arranged on electrical equipment L lines pass
Sensor, it is serially connected in electrical equipment L lines and solid-state relay on N lines, is connected with current sensor and solid-state relay circuit
Control module, the communication module being connected on control module output port, the current sensor are described solid to detect electric current
State relay to break-make control, the control module to receive the signal of current sensor and make short-circuit trend prediction and
Export monitoring information and control signal, the communication module by control module output information accessing internet.Wherein, L lines
Be zero line for live wire, N lines, PE lines be ground protection line.In use, current sensor is to the electricity in electrical equipment L lines
Stream progress is contactless inductive, and L line currents are switched into voltage output feeding control module and are acquired, i.e., electricity consumption to be detected is set
It is standby that signal is gathered by current sensor and analyzed by control module, by the absolute value and rate of change of curent change with
The extent of deviation of normal variation trend come predict short circuit generation.
As shown in figure 1, in a kind of short-circuit prediction meanss of the utility model, the current sensor senses for Hall current
Device, its model WCS1600, the control module are single-chip microcomputer, the single-chip microcomputer model STC15W408AS.The communication
Module is connected by internet with user PC ends or mobile terminal, and the communication module is that RS485 turns RJ45 communication modules, described
RS485 turns RJ45 communication module models LAN8720.The control module is connected with pre-alarm display device, and the early warning is shown
The exportable multistage pre-warning signal of device is shown, after short-circuit occurrence tendency is predicted, can divide three-level early warning, level representative has short circuit
Trend but not dangerous, prediction signal pass through 1 grade of early warning and show that signal end exports；Two level, which represents, short-circuit trend and dangerous, in advance
Survey signal and show that signal end exports by 2 grades of early warning；Three-level, which represents, to be had short-circuit trend and will occur, and prediction signal passes through 3 grades
Early warning shows signal end output；When reaching three-level early warning, automatically shut power off, protect property and life.The control module is also
It is connected with the switch that electrically resumes operation.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, every the present invention's
All any modification, equivalent and improvement made within spirit and principle etc., should be included in the scope of the protection.
Claims (10)
- A kind of 1. short-circuit prediction meanss, it is characterised in that：Including be arranged on electrical equipment L lines current sensor, be serially connected in Electrical equipment L lines and solid-state relay on N lines, the control module being connected with current sensor and solid-state relay circuit, even The communication module being connected on control module output port, the current sensor to detect electric current, use by the solid-state relay Controlled with break-make, the control module is believed to receive the signal of current sensor and make short-circuit trend prediction and export monitoring Breath and control signal, the communication module to by control module output information access internet.
- A kind of 2. short-circuit prediction meanss according to claim 1, it is characterised in that：The current sensor is Hall current Sensor, its model WCS1600.
- A kind of 3. short-circuit prediction meanss according to claim 1, it is characterised in that：The control module is single-chip microcomputer.
- A kind of 4. short-circuit prediction meanss according to claim 3, it is characterised in that：The single-chip microcomputer model STC15W408AS。
- A kind of 5. short-circuit prediction meanss according to claim 1, it is characterised in that：The communication module by internet with User PC ends or mobile terminal connection.
- A kind of 6. short-circuit prediction meanss according to claim 1 or 5, it is characterised in that：The communication module turns for RS485 RJ45 communication modules.
- A kind of 7. short-circuit prediction meanss according to claim 6, it is characterised in that：The RS485 turns RJ45 communication modules Model LAN8720.
- A kind of 8. short-circuit prediction meanss according to claim 1, it is characterised in that：The control module is connected with early warning and shown Showing device.
- A kind of 9. short-circuit prediction meanss according to claim 8, it is characterised in that：The pre-alarm display device is exportable more Level pre-warning signal is shown.
- A kind of 10. short-circuit prediction meanss according to claim 1 or 3 or 8, it is characterised in that：The control module also connects It is connected to the switch that electrically resumes operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721047307.2U CN207067308U (en) | 2017-08-21 | 2017-08-21 | A kind of short-circuit prediction meanss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721047307.2U CN207067308U (en) | 2017-08-21 | 2017-08-21 | A kind of short-circuit prediction meanss |
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| Publication Number | Publication Date |
|---|---|
| CN207067308U true CN207067308U (en) | 2018-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721047307.2U Active CN207067308U (en) | 2017-08-21 | 2017-08-21 | A kind of short-circuit prediction meanss |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020134234A1 (en) * | 2018-12-28 | 2020-07-02 | 深圳市九洲电器有限公司 | Short circuit protection circuit of interface and set-top box |
| CN111969725A (en) * | 2020-07-28 | 2020-11-20 | 福建集薪物联网科技有限公司 | Air switch with electricity safety advanced early warning function |
-
2017
- 2017-08-21 CN CN201721047307.2U patent/CN207067308U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020134234A1 (en) * | 2018-12-28 | 2020-07-02 | 深圳市九洲电器有限公司 | Short circuit protection circuit of interface and set-top box |
| CN111969725A (en) * | 2020-07-28 | 2020-11-20 | 福建集薪物联网科技有限公司 | Air switch with electricity safety advanced early warning function |
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