CN203119445U - Circuit breaker contact monitoring device - Google Patents
Circuit breaker contact monitoring device Download PDFInfo
- Publication number
- CN203119445U CN203119445U CN 201320046004 CN201320046004U CN203119445U CN 203119445 U CN203119445 U CN 203119445U CN 201320046004 CN201320046004 CN 201320046004 CN 201320046004 U CN201320046004 U CN 201320046004U CN 203119445 U CN203119445 U CN 203119445U
- Authority
- CN
- China
- Prior art keywords
- circuit
- breaker
- monitoring device
- chip microcomputer
- phase
- 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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Abstract
The utility model relates to a circuit breaker contact monitoring device. The circuit breaker contact monitoring device includes a three-phase power supply detection circuit, a signal processing circuit, a single-chip microcomputer control circuit, a wireless transmitting module alarm circuit and a drive circuit. The three-phase power supply detection circuit transmits acquired output signals to the single-chip microcomputer control circuit through the signal processing circuit; and output signals of the single-chip microcomputer control circuit are transmitted to the wireless transmitting module alarm circuit and the drive circuit. According to the circuit breaker contact monitoring device of the utility model, the three-phase power supply detection circuit is adopted, when some phase is default or lost, after the judgment of the single-chip microcomputer control circuit, warning signals are continuously emitted until a power source is switched off, and therefore, the safety of electric equipment can be protected.
Description
Technical field
The utility model relates to a kind of supervising device, particularly be a kind of contact of breaker supervising device.
Background technology
Circuit breaker is in the use of three utmost points or four utmost points, and wherein contact is disconnected and happened occasionally, and causes phase failure accident.
The utility model content
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of contact of breaker supervising device is provided.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of contact of breaker supervising device, comprise three phase mains testing circuit, signal processing circuit, single chip machine controlling circuit, wireless transmitter module warning circuit and drive circuit, described three phase mains testing circuit transfers to single chip machine controlling circuit with the output signal of gathering through signal processing circuit, and the output signal of described single chip machine controlling circuit sends to wireless transmitter module warning circuit and drive circuit.
Preferably, described three phase mains testing circuit connects three-phase firewire by the input of circuit breaker CM1, and the output of circuit breaker CM1 connects the neutral line and constitutes.
Preferably, described wireless transmitter module warning circuit adopts the FDD-5 transmitter module.
By adopting above-mentioned technical scheme, the beneficial effects of the utility model are: the utility model adopts the three phase mains testing circuit to gather signal, when certain phase phase shortage or the phase failure; after single chip machine controlling circuit is judged; send alarm signal, until cutting off the electricity supply, thus the safety of protection power consumption equipment.
Description of drawings
Fig. 1 is frame assumption diagram of the present utility model;
Fig. 2 is circuit theory diagrams of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1 and Figure 2, a kind of contact of breaker supervising device of the present utility model, comprise three phase mains testing circuit 1, signal processing circuit 11, single chip machine controlling circuit 2, wireless transmitter module warning circuit 21 and drive circuit 22, described three phase mains testing circuit 1 transfers to single chip machine controlling circuit 2 with the output signal of gathering through signal processing circuit 11, and the output signal of described single chip machine controlling circuit 2 sends to wireless transmitter module warning circuit 21 and drive circuit 22.
Described three phase mains testing circuit 1 connects three-phase firewire by the input of circuit breaker CM1, the output of circuit breaker CM1 connects the neutral line and constitutes, when circuit breaker CM1 is in combined floodgate, live wire L1, zero line N constitutes the AC220V ac voltage circuit, live wire L1 is through capacitor C 1 step-down, resistance R 1 dividing potential drop, diode D1 rectification, capacitor C 2 filtering, voltage stabilizing didoe DW voltage stabilizing, this voltage signal is through resistance R 3 current limlitings, the 35th pin I/O port that is input to single-chip microcomputer IC1 also is in high level state, expression CM1 is in normal connection power supply state, after the comprehensive judgement of IC1, do not send control signal.When circuit breaker CM1 is in combined floodgate, live wire L1, when zero line N does not constitute the AC220V ac voltage circuit, live wire L1 is through capacitor C 1 pressure drop, voltage stabilizing didoe DW does not have voltage regulation signal output yet, the 35th pin I/O port that this signal is input to single-chip microcomputer IC1 also is in low level state, the L1 of expression circuit breaker CM1 inside is not in the connection power supply state mutually, after the comprehensive judgement of single-chip microcomputer IC1 internal processes, send control signal, first via output is by the 28th pin output high level signal of single-chip microcomputer IC1, through resistance R 4 current limlitings, make triode Q1 conducting, be input to the 2nd pin of FDD-5 transmitter module IC2, and deliver to its 3rd pin, namely modulation signal input end CP modulates the high-frequency signal of emission.The antenna TX that FDD-5 transmitter module IC2 output connects namely externally launches modulated frequency electromagnetic waves.The output of another road through resistance R 5 current limlitings, makes triode Q2 conducting by the 8th pin output high level of single-chip microcomputer IC1, the relay J adhesive, and its contact J-1 transfers to normally closedly by often opening, and promotes the outage of threading off of circuit breaker CM1 shunt opening coil, guarantees power consumption equipment safety.
The principle of above L2, L3 phase is the same with the principle of L1 phase, no longer repeats.
Above-described only is a preferred embodiment of the present utility model, can not limit the scope that the utility model is implemented, and every equalization of doing according to the utility model claim changes and decorates, and all should still belong in the scope that the utility model contains.
Claims (3)
1. contact of breaker supervising device, it is characterized in that: comprise three phase mains testing circuit (1), signal processing circuit (11), single chip machine controlling circuit (2), wireless transmitter module warning circuit (21) and drive circuit (22), described three phase mains testing circuit (1) transfers to single chip machine controlling circuit (2) with the output signal of gathering through signal processing circuit (11), and the output signal of described single chip machine controlling circuit (2) sends to wireless transmitter module warning circuit (21) and drive circuit (22).
2. contact of breaker supervising device according to claim 1 is characterized in that: described three phase mains testing circuit (1) connects three-phase firewire by the input of circuit breaker CM1, and the output of circuit breaker CM1 connects the neutral line and constitutes.
3. contact of breaker supervising device according to claim 1 and 2 is characterized in that: described wireless transmitter module warning circuit (21) employing FDD-5 transmitter module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320046004 CN203119445U (en) | 2013-01-22 | 2013-01-22 | Circuit breaker contact monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320046004 CN203119445U (en) | 2013-01-22 | 2013-01-22 | Circuit breaker contact monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203119445U true CN203119445U (en) | 2013-08-07 |
Family
ID=48899762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320046004 Expired - Fee Related CN203119445U (en) | 2013-01-22 | 2013-01-22 | Circuit breaker contact monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203119445U (en) |
-
2013
- 2013-01-22 CN CN 201320046004 patent/CN203119445U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20140122 |