CN206208967U - Voltage/current signals sensor - Google Patents
Voltage/current signals sensor Download PDFInfo
- Publication number
- CN206208967U CN206208967U CN201621016204.5U CN201621016204U CN206208967U CN 206208967 U CN206208967 U CN 206208967U CN 201621016204 U CN201621016204 U CN 201621016204U CN 206208967 U CN206208967 U CN 206208967U
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- voltage
- microprocessor
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- module
- current
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Abstract
The utility model proposes voltage/current signals sensor, with the timely warning function of failure such as short-circuit, breaking, over-pressed, under-voltage, excessively stream and phase shortage, misphase, overload, and possess communication interconnection and abundant external interface, can greatly extension sensor function.Voltage/current signals sensor includes microprocessor, state display module, communication module, alarm module, external cabling port and several voltage signal acquisition modules and some and current signal collection module.
Description
Technical field
The utility model is related to a kind of voltage/current signals sensor.
Background technology
With the rapid emergence and the continuous improvement of people's living standard of city semi-high-rise housing, the popularization of household electrical appliance reaches
Unprecedented degree is arrived, city residents' energy consumption amount is doubled and redoubled, and government building, museum etc. are throughout the year in bad repair, electrically fire
Calamity hidden danger is more so that electrical fire also increases severely therewith.Increasingly attention is taken precautions against also in the security against fire of building.Voltage/electricity
Stream signal transducer be electric or security protection early warning in important component, in the market voltage/current signals sensing
Device is relatively simple, with realize during the failure such as short-circuit, breaking, over-pressed, under-voltage, excessively stream and phase shortage, misphase, overload can and Times
Based on police, lack interface expansion capability and linked ability with external communication, the coordinated signals to electric fire-control equipment bring necessarily
Difficulty.
Utility model content
The utility model proposes voltage/current signals sensor, with short-circuit, breaking, over-pressed, under-voltage, excessively stream and lack
The timely warning function of the failures such as phase, misphase, overload, and possess communication interconnection and abundant external interface, can greatly expand
Open up the function of sensor.
Technical solutions of the utility model are as follows：
A kind of voltage/current signals sensor, including microprocessor, state display module, communication module, alarm module,
External cabling port and several voltage signal acquisition modules and some and current signal collection module；
The signal output part of the voltage signal acquisition module is defeated with the input of microprocessor by voltage follower circuit
Outlet connection, the signal output part of the current signal collection module is connected with the input/output port of microprocessor；
The state display module is connected by display driver circuit with the input/output port of microprocessor；
The TD ends and RD ends of the communication module connect with the TD ends of microprocessor and RD ends respectively；
The alarm module includes alarm, the input and output that the alarm passes through alarm drive circuit and microprocessor
Mouth connection；
The external cabling port includes voltage terminal, current terminal and power end, the voltage terminal and electricity
The voltage transformer output end connection of signal acquisition module is pressed, the current terminal is mutual with the electric current of current signal collection module
Sensor output end is connected.
Further, the state display module include it is main by over-pressed indicator lamp, under-voltage indicator lamp, phase shortage indicator lamp,
The LED that excessively stream indicator lamp, short-circuit indicator lamp, overload light, communication indicator lamp, malfunction indicator lamp and power supply indicator are constituted refers to
Show lamp region；The display driver circuit is LED lamp drive circuit.
Further, the communication module includes CAN communication circuit.
Further, the alarm drive circuit is included for controlling the electromagnetic relay of alarm start and stop and for driving
The control circuit of the electromagnetic relay break-make is moved, the control circuit is connected with the input/output port of microprocessor.
Further, the microprocessor is STM32F103R8T6 processors.
Further, the voltage transformer is PT2011A/-2mA/2mA transformers；The current transformer is CT-
5A/2.5mA transformers.
Further, the external cabling port includes external digital On-off signal output interface, and the external digital is opened
Pass amount input/output interface is connected by optically coupled circuit with the input/output port of microprocessor.
Further, the external cabling port also includes signal transmitting and receiving interface, signal transmitting and receiving interface and microprocessor
Signal transmitting and receiving end connects.
By above description, compared with prior art, the utility model has the following advantages that the utility model：
Voltage/current signals sensor of the present utility model possess telecommunication linkage management function have short circuit, open circuit,
The timely warning function of the failure such as over-pressed, under-voltage, excessively stream and phase shortage, misphase, overload, being capable of extraneous other transducing signals joint control
System, and with digital switch quantity input/output interface, greatly the use scope of abundant voltage/current signals sensor, makes
Obtaining voltage/current signals sensor not only has warning function, and can extend executing agency, such as trip gear, realizes
Actively prevent.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1, theory diagram of the present utility model；
Fig. 2, is the schematic diagram of display driver circuit of the present utility model；
Fig. 3, is the schematic diagram of CAN communication circuit of the present utility model；
Fig. 4, is the schematic diagram of the circuit of the utility model alarm module；
Fig. 5, is the circuit theory diagrams of digital switch quantity input/output interface of the present utility model；
Fig. 6, is the circuit theory diagrams of voltage signal acquisition module of the present utility model；
Fig. 7, is the circuit theory diagrams of current signal collection module of the present utility model；
Fig. 8, is voltage follower circuit schematic diagram of the present utility model.
Specific embodiment
The technical scheme in the utility model embodiment will be clearly and completely described below, it is clear that described
Embodiment is only a part of embodiment of the utility model, rather than whole embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made is belonged to
The scope of the utility model protection.
Reference picture 1, a kind of voltage/current signals sensor, including microprocessor 1, state display module 2, communication module
3rd, alarm module 4, external cabling port 5 and several voltage signal acquisition modules 6 and some and current signal collection module
7；The signal output part of the voltage signal acquisition module 6 is by voltage follower circuit 8 and the input/output port of microprocessor 1
Connection, the signal output part of the current signal collection module 7 is connected with the input/output port of microprocessor 1；The voltage letter
As indicated with 6, the circuit theory of the current signal collection module is as shown in Figure 7 for the circuit theory diagrams of number acquisition module；The electricity
Pressure follower circuit principle using TLC2274AQD operational amplifier chips as shown in figure 8, made.
Referring to Figures 1 and 2, the input and output that the state display module 2 passes through display driver circuit 21 and microprocessor 1
Mouth connection；The state display module 2 includes main by over-pressed indicator lamp, under-voltage indicator lamp, phase shortage indicator lamp, excessively stream instruction
The LED light area that lamp, short-circuit indicator lamp, overload light, communication indicator lamp, malfunction indicator lamp and power supply indicator are constituted
Domain, the display driver circuit 21 is LED lamp drive circuit, and LED drive circuit principle is as shown in Figure 2.
Reference picture 1 and Fig. 3, the communication module 3 include CAN communication circuit, the TD ends and RD ends point of the communication module
TD ends and RD the ends connection of other and microprocessor；The CAN communication circuit is as shown in Figure 3.
Reference picture 1 and Fig. 4, the alarm module include alarm 42, and the alarm 42 passes through alarm drive circuit 41
Input/output port with microprocessor 1 is connected；The alarm drive circuit 41 includes the electromagnetism for controlling the start and stop of alarm 42
The input/output port of relay and the control circuit for driving the electromagnetic relay break-make, the control circuit and microprocessor
Connection, the circuit theory of alarm drive circuit is as shown in Figure 4.
Reference picture 1 and Fig. 5, the external cabling port 5 include voltage terminal, current terminal and power end, described
Voltage terminal is connected with the output end of voltage transformer 61 of voltage signal acquisition module 6, and voltage transformer 61 can be adopted herein
With external voltage transformer；The current terminal is connected with the output end of current transformer 71 of current signal collection module 7.
The external cabling port 5 includes external digital On-off signal output interface 51, and external digital On-off signal output connects
Mouth 51 is connected by optically coupled circuit with the input/output port of microprocessor 1, and the photoelectric coupling circuit is as shown in Figure 5.It is described
External cabling port 5 also includes signal transmitting and receiving interface 9, and signal transmitting and receiving interface 9 is connected with the signal transmitting and receiving end of microprocessor 1.
In the present embodiment, the microprocessor is preferably STM32F103R8T6 processors, it is not limited to the model
Processor.
In the present embodiment, the voltage transformer is preferably PT2011A/-2mA/2mA transformers；The current transformer
Preferably CT-5A/2.5mA transformers, but simultaneously step is limited to the transformer of above-mentioned model.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, it is all at this
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model
Protection domain within.
Claims (8)
1. a kind of voltage/current signals sensor, it is characterised in that：Including microprocessor, state display module, communication module,
Alarm module, external cabling port and several voltage signal acquisition modules and some and current signal collection module；
The signal output part of the voltage signal acquisition module is by voltage follower circuit and the input/output port of microprocessor
Connection, the signal output part of the current signal collection module is connected with the input/output port of microprocessor；
The state display module is connected by display driver circuit with the input/output port of microprocessor；
The TD ends and RD ends of the communication module connect with the TD ends of microprocessor and RD ends respectively；
The alarm module includes alarm, and the alarm is connected by alarm drive circuit with the input/output port of microprocessor
Connect；
The external cabling port includes voltage terminal, current terminal and power end, and the voltage terminal is believed with voltage
The voltage transformer output end connection of number acquisition module, the current transformer of the current terminal and current signal collection module
Output end is connected.
2. a kind of voltage/current signals sensor as claimed in claim 1, it is characterised in that：The state display module bag
Include it is main by over-pressed indicator lamp, it is under-voltage indicator lamp, phase shortage indicator lamp, excessively stream indicator lamp, short-circuit indicator lamp, overload light, logical
The LED light region that news indicator lamp, malfunction indicator lamp and power supply indicator are constituted；The display driver circuit drives for LED
Dynamic circuit.
3. a kind of voltage/current signals sensor as claimed in claim 1, it is characterised in that：The communication module includes CAN
Telecommunication circuit.
4. a kind of voltage/current signals sensor as claimed in claim 1, it is characterised in that：The alarm drive circuit bag
Include the electromagnetic relay for controlling alarm start and stop and the control circuit for driving the electromagnetic relay break-make, the control
Circuit is connected with the input/output port of microprocessor.
5. a kind of voltage/current signals sensor as claimed in claim 1, it is characterised in that：The microprocessor is
STM32F103R8T6 processors.
6. a kind of voltage/current signals sensor as claimed in claim 1, it is characterised in that：The voltage transformer is
PT2011A/-2mA/2mA transformers；The current transformer is CT-5A/2.5mA transformers.
7. voltage/current signals sensor as claimed in claim 1, it is characterised in that：The external cabling port includes outer
Portion's digital switch quantity input/output interface, the external digital On-off signal output interface passes through optically coupled circuit and microprocessor
Input/output port connection.
8. voltage/current signals sensor as claimed in claim 1, it is characterised in that：The external cabling port also includes
Signal transmitting and receiving interface, signal transmitting and receiving interface is connected with the signal transmitting and receiving end of microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621016204.5U CN206208967U (en) | 2016-08-31 | 2016-08-31 | Voltage/current signals sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621016204.5U CN206208967U (en) | 2016-08-31 | 2016-08-31 | Voltage/current signals sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206208967U true CN206208967U (en) | 2017-05-31 |
Family
ID=58759705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621016204.5U Expired - Fee Related CN206208967U (en) | 2016-08-31 | 2016-08-31 | Voltage/current signals sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206208967U (en) |
-
2016
- 2016-08-31 CN CN201621016204.5U patent/CN206208967U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170531 Termination date: 20170831 |