CN2679698Y - Monitoring warner for disconnection and short circuit - Google Patents
Monitoring warner for disconnection and short circuit Download PDFInfo
- Publication number
- CN2679698Y CN2679698Y CN 200420028539 CN200420028539U CN2679698Y CN 2679698 Y CN2679698 Y CN 2679698Y CN 200420028539 CN200420028539 CN 200420028539 CN 200420028539 U CN200420028539 U CN 200420028539U CN 2679698 Y CN2679698 Y CN 2679698Y
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Abstract
The utility model provides a monitoring warner for disconnection and short circuit, which is composed of a circuit assembly of the monitoring warner which is arranged in the casing of the monitoring warner, an indicating lamp which is arranged on the front panel of the casing, and a binding post and a power switch which are arranged on the rear panel of the casing. The circuit assembly of the monitoring warner is composed of a signal source circuit, a self-checking circuit, a signal processing circuit, an anti-high voltage protection circuit, a working indicating circuit, an alarm control circuit, a power output circuit, a positive-negative level short circuit monitoring circuit and a positive-negative level open monitoring circuit which are connected together. The utility model has novel structure, innovative design, high input resistance, far monitoring distance, strong anti-interference ability, more functions, stable working performance and convenient use. The monitoring warner for disconnection and short circuit has automatic protection when the high voltage invades, and the monitoring warner for disconnection and short circuit has sound, light and electricity output. The utility model is a novel monitoring warner for disconnection and short circuit which is suitable for monitoring and alarming such as switching element state, connecting wire on off, water level fluctuation, etc.
Description
Technical field
The utility model relates to a kind of monitoring alarmer, especially a kind ofly opens, the short circuit monitoring alarmer.
Background technology
Open circuit and short circuit are two kinds of faults often to occur in electronic circuit; it directly causes the circuit cisco unity malfunction; also can have influence on all operate as normal of relevant circuit as untimely discovery and monitoring; common employing adds safety apparatus in circuit; but only can cut off circuit when over-voltage and over-current and not have the display alarm system, be condenser type, choke coil formula protector again, and its protection effect is poor; and range of application is narrow, uses comparatively inconvenience.
Summary of the invention
In order to overcome the deficiency of prior art; the utility model provides a kind of novel structure; antijamming capability is strong; can effectively carry out the opening of circuit, short circuit monitor alarm, high-tension electricity is invaded protection automatically, and sound, light, electricity are exported; function is many; applied range, stable work in work easy to use is new-typely opened, the short circuit monitoring alarmer.
The technical scheme in the invention for solving the technical problem is: adopt load monitoring alarmer circuit assembly in the monitoring alarmer housing, and at the front panel load pilot lamp of casing, rear panel installing external direct current power supply interface, power switch and input, output wiring terminal, formed open, the short circuit monitoring alarmer.Open; short circuit monitoring alarmer circuit assembly is by signal source circuit XY; self-checking circuit ZJ; signal processing circuit CL; anti-high-tension electricity holding circuit BH; working indicating DZ; alarm control circuit BJ; power output circuit GS; positive and negative level short monitoring circuit DJ and just; negative level open circuit monitoring circuit KJ1-2; signal source circuit XY connects behind the self-checking circuit ZJ signal processing circuit CL in succession; signal processing circuit CL connects working indicating DZ respectively; alarm control circuit BJ; power output circuit GS; positive negative level open circuit monitoring circuit KJ1-2; positive and negative level short monitoring circuit DJ; just; negative level open circuit monitoring circuit KJ1-2 is being connected signal source circuit XY again respectively with positive and negative level short monitoring circuit DJ, and anti-high-tension electricity holding circuit BH connects positive and negative level short monitoring circuit DJ.Of the present utility modelly open, the short circuit monitoring alarmer is to provide two-way continual level signal by signal source circuit XY, L2 is that high level " 1 " is effective, L3 is that low level " 0 " is effective.Positive level open circuit monitoring circuit is that normally closed contact K1 connects signal receiving circuit J1 and signal source circuit respectively by circuit L1, L2, and signal receiving circuit J1 connects signal processing circuit again and forms; Negative level open circuit monitoring circuit is that normally closed contact K2 connects signal receiving circuit J2 and signal source circuit respectively by circuit L3, L4, and signal receiving circuit J2 connects signal processing circuit again and forms; Positive and negative level short monitoring circuit is that normal opened contact K3 is made up of circuit L2-3 connection signal source circuit.K1, K2 are normally closed contact, and K3 is a normal opened contact, and K1, K2 via line L1-2, L3-4 connection respectively form two groups of " open circuit " monitoring circuits with signal receive section J1, J2; K3 via line L2-3 is connected to form one group of " short circuit " monitored state.Pilot lamp DZ4 is the operate as normal pilot lamp, and pilot lamp DZ0 is the high voltage alarm pilot lamp, and pilot lamp DZ1 is the pilot lamp of signal reception group J1, and pilot lamp DZ2 is the pilot lamp of signal reception group J2, and pilot lamp DZ1-3 is combined as the short circuit pilot lamp.The principle of work of its circuit is: 1. when normally closed contact K1, the K2 of positive and negative level open circuit monitoring circuit open or circuit L1 and L2, L3 and L4 between when occurring opening a way, signal processing circuit CL upset is sent signal and is defeated by the alarm control circuit sounding alarm, being defeated by working indicating DZ pilot lamp DZ1-2 lights, relay indicating light DZ4 extinguishes, and is defeated by power output circuit GS and makes the photoelectrical coupler conducting; 2. when short circuit appears in the normal opened contact K3 closure of positive and negative level short monitoring circuit or circuit L2 and L3, signal source circuit XY inner loop, signal processing circuit CL upset is sent signal and is defeated by alarm control circuit BJ sounding alarm, being defeated by working indicating pilot lamp DZ1-3 lights, relay indicating light DZ4 extinguishes, and is defeated by power output circuit GS and makes the photoelectrical coupler conducting; 3. the self-checking function of self-checking circuit ZJ, when the warning power switch is opened, signal source temporarily is closed, except that relay indicating light extinguishes, other output signal (comprise sound, light) all is in alarm status, recover monitored state after several seconds, relay indicating light DZ4 is glittering, can observe when therefore using to have or not the inefficacy circuit; 4. anti-high-tension electricity holding circuit BH is at circuit L1-2 and L3-4 during for the open circuit monitoring circuit; be operated in the closed-loop state; need not to consider external high pressure electricity intrusion problem; at circuit L2-3 is that short circuit monitors; be operated in open-circuit condition; be particularly useful for remote or during open field work; anti-high-tension electricity is invaded and is just seemed very important, and this circuit has two kinds of measures; three-level protective, the one, the level signal of signal source is designed to unidirectional output; the 2nd, increased the two-stage discharge loop in the circuit input port; high-tension electricity is kept outside of the door, circuit inside is without prejudice, when having high-tension electricity to invade; pilot lamp DZ0 is lighted; remind the user to take care, and in time handle, pilot lamp DZ0 is not controlled by power switch; also not within the self-checking circuit scope, be in the enforcement monitored state all the time.
Also can expand several monitoring circuits as required according to above structure, power output circuit interface GS can also drive other utility appliance, is used for the outside expanded function of alarm.
Because technique scheme has been adopted in the utility model design; through testing on probation showing for several times; it has novel structure; design innovation; the input impedance height; surveillance distance is far away, and antijamming capability is strong, can effectively carry out the opening of circuit, short circuit monitor alarm; high-tension electricity is invaded protection automatically; sound, light, electricity output, function is many, applied range; stable work in work; advantage such as easy to use is applicable to monitor alarms such as switching device state, lead break-make, fluctuation in stage, be a kind ofly novel open, the short circuit monitoring alarmer.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 is the product structure sketch of the utility model embodiment.
Fig. 2 is the functional-block diagram of circuit assembly among Fig. 1 embodiment.
Fig. 3 is the basic circuit diagram of Fig. 2 circuit assembly.
Embodiment
Embodiment as shown in Figure 1, the utility model is by load monitoring alarmer circuit assembly 3 in the monitoring alarmer housing 1, and at the front panel load pilot lamp 2 of casing, rear panel installing external direct current power supply interface, power switch and input, output wiring terminal, formed open, the short circuit monitoring alarmer.Shown in the accompanying drawing 1 is the configuration diagram of 8 open circuits, 4 short circuit monitoring alarmer embodiment.
Referring to accompanying drawing 2 embodiment; the utility model is opened; the circuit assembly 3 of short circuit monitoring alarmer is by signal source circuit XY; self-checking circuit ZJ; signal processing circuit CL; anti-high-tension electricity holding circuit BH; working indicating DZ; alarm control circuit BJ; power output circuit GS; positive and negative level short monitoring circuit DJ and just; negative level open circuit monitoring circuit KJ1-2; signal source circuit XY connects behind the self-checking circuit ZJ signal processing circuit CL in succession; signal processing circuit CL connects working indicating DZ respectively; alarm control circuit BJ; power output circuit GS; positive negative level open circuit monitoring circuit KJ1-2; positive and negative level short monitoring circuit DJ; just; negative level open circuit monitoring circuit KJ1-2 is being connected signal source circuit XY again respectively with positive and negative level short monitoring circuit DJ, and anti-high-tension electricity holding circuit BH connects positive and negative level short monitoring circuit DJ.
Referring to accompanying drawing 3 embodiment, the utility model is opened, the physical circuit of short circuit monitoring alarmer circuit assembly 3 is:
Signal source circuit XY is connected by positive source V+ connection simulation K switch 1 back resistance in series R2 and diode D2 to monitor that output contact J1, J2 provide the positive level signal for positive level open circuit monitoring circuit again; Power cathode V-connection simulation K switch 2 back resistance in series R3 and diode D3 connect supervision output contact J3, J4 again provides the negative level signal for negative level open circuit monitoring circuit; Monitor that between output contact J1-2, the J3-4 be external normally closed switch.
Signal processing circuit is an integrated circuit (IC) 9, the inverter ic 8 that connects inverter ic 5, provides negative level to connect power output circuit GS behind the analog switch K4 that it provides positive level to connect working indicating, and it also connects simulation K switch 3.
Positive level open circuit monitoring circuit KJ1 comprises monitoring circuit and warning circuit, and series limiting resistor RL2 and light emitting diode DZ2 meet positive source V+ again and formed again monitoring circuit connects inverter ic 2-3 by positive level after monitoring output contact J2 resistance in series R7 after; Series limiting resistor RL2 and light emitting diode DZ2 meet positive source V+ and are formed warning circuit more again after resistance R 6 connects inverter ic 2-3 by negative level.
Negative level open circuit monitoring circuit KJ2 is made up of monitoring circuit and warning circuit, monitoring circuit by negative level through monitoring behind the output contact J4 resistance in series R8 behind the connection inverter ic 4 that again series limiting resistor RL3 and light emitting diode DZ3 meet positive source V+ again and formed; Series limiting resistor RL3 and light emitting diode DZ3 meet positive source V+ and are formed warning circuit more again after resistance R 9 connects inverter ics 4 by positive level.
Positive and negative level short monitoring circuit DJ comprises monitoring circuit and warning circuit, and series limiting resistor RL1 and light emitting diode DZ1 meet positive source V+ and formed monitoring circuit more again after resistance R 1 connects integrated circuit (IC) 0-1 by positive level; Series limiting resistor RL1 and light emitting diode DZ1 meet positive source V+ and are formed warning circuit more again after connecting integrated circuit (IC) 0-1 after the resistance R 5 by negative level.
Self-checking circuit ZJ connects power cathode V-by positive source V+ resistance in series R4, capacitor C 1 after connecting power switch K, control analog switch K1, K2 form delay circuit, when power switch K opens, open, the short circuit warning system is all in running order, enters monitored state after the RC charging finishes.
Working indicating DZ is connected the on-off circuit that inverter ic 6-7 forms oscillator control analog switch K4 by resistance R 10-11 with capacitor C 2; Connect inverter ic 5 after providing positive level to connect simulation K switch 4 by integrated circuit (IC) 9, form display circuit by connecing inverter ic 5 behind the anodal connection of light emitting diode DZ4 positive source V+, the negative pole series limiting resistor RL4, demonstration is closed in the upset of integrated circuit (IC) 9 level during alarm status.
Alarm control circuit BJ is connected by integrated circuit (IC) 9 and meets musical film YP after the simulation K switch 3 and loudspeaker LB is formed, and integrated circuit (IC) 9 is a monitored state when positive level is provided, audible closure; Be alarm status when integrated circuit (IC) 9 provides negative level, loudspeaker send chimes of doom.
Power output circuit GS comprises monitored state circuit and alarm status circuit, and the monitored state circuit provides negative level connection positive source V+ after resistance in series R12 meets photoelectrical coupler JK again behind company's inverter ic 8 to be formed by integrated circuit (IC) 9; The alarm status circuit provides positive level connection positive source V+ after resistance in series R12 meets photoelectrical coupler JK again behind company's inverter ic 8 to be formed by integrated circuit (IC) 9.
Anti-high-tension electricity holding circuit BH comprises discharge and warning circuit and discharge loop two parts, and first group of discharge and warning circuit monitor that by monitoring that output contact J3 connects behind series diode D3, resistance R 3, light emitting diode DZ0, the D2 successively output contact J1 is formed; Second group of discharge loop connects power cathode V-by positive source V+ series diode D1 and formed.
Analog switch K1-4 is that 4066 patterns are intended switch in the utility model, also can adopt the congenerous analog switch of other type; Integrated circuit (IC) 0 is 4093 types or 4012 types or 4068 types or other type integrated circuit for Sheffer stroke gate; Integrated circuit (IC) 1-8 is that phase inverter is the integrated circuit of 4049 type integrated circuit or other identical function; Integrated circuit (IC) 9 for rejection gate/or a door integrated circuit adopt 4078 types or other type integrated circuit.Light emitting diode DZ0-4 in the circuit promptly is pilot lamp DZ0-4.
Claims (2)
1; a kind of opening; the short circuit monitoring alarmer; it comprises casing; circuit assembly; it is characterized in that casing is an interior load monitoring alarmer circuit assembly (3); front panel load pilot lamp (2); rear panel installing external direct current power supply interface; power switch and input; the casing of output wiring terminal (1); monitoring alarmer circuit assembly (3) is by signal source circuit XY; self-checking circuit ZJ; signal processing circuit CL; anti-high-tension electricity holding circuit BH; working indicating DZ; alarm control circuit BJ; power output circuit GS; positive and negative level short monitoring circuit DJ and just; negative level open circuit monitoring circuit KJ1-2; signal source circuit XY connects behind the self-checking circuit ZJ signal processing circuit CL in succession; signal processing circuit CL connects working indicating DZ respectively; alarm control circuit BJ; power output circuit GS; positive negative level open circuit monitoring circuit KJ1-2; positive and negative level short monitoring circuit DJ; just; negative level open circuit monitoring circuit KJ1-2 is being connected signal source circuit XY again respectively with positive and negative level short monitoring circuit DJ, and anti-high-tension electricity holding circuit BH connects positive and negative level short monitoring circuit DJ.
2, according to claim 1ly open, the short circuit monitoring alarmer, it is characterized in that the physical circuit of monitoring alarmer circuit assembly (3) is:
(1), signal source circuit XY is connected by positive source V+ connection simulation K switch 1 back resistance in series R2 and diode D2 to monitor that output contact J1, J2 provide the positive level signal for positive level open circuit monitoring circuit again, power cathode V-connects simulation K switch 2 back resistance in series R3 and diode D3 connects supervision output contact J3, J4 again for negative level open circuit monitoring circuit provides the negative level signal, monitors that between output contact J1-2, the J3-4 be external normally closed switch;
(2), signal processing circuit is integrated circuit (IC) 9, integrated circuit (IC) 9 connects and connects that inverter ic 5 provides positive level, the inverter ic 8 that connects power output circuit GS provides negative level behind the analog switch K4 of working indicating, is also connecting analog switch K3;
(3), positive level open circuit monitoring circuit KJ1 comprises monitoring circuit and warning circuit, monitoring circuit connects inverter ic 2-3 by positive level after monitoring output contact J2 resistance in series R7 after again series limiting resistor RL2 and light emitting diode DZ2 meet positive source V+ again and formed, series limiting resistor RL2 and light emitting diode DZ2 meet positive source V+ and are formed warning circuit more again behind resistance R 6 connection inverter ic 2-3 by negative level;
(4), negative level open circuit monitoring circuit KJ2 is made up of monitoring circuit and warning circuit, monitoring circuit connects inverter ic 4 by negative level after monitoring output contact J4 resistance in series R8 after again series limiting resistor RL3 and light emitting diode DZ3 meet positive source V+ again and formed, series limiting resistor RL3 and light emitting diode DZ3 meet positive source V+ and are formed warning circuit more again behind resistance R 9 connection inverter ics 4 by positive level;
(5), positive and negative level short monitoring circuit DJ comprises monitoring circuit and warning circuit, monitoring circuit by positive level after resistance R 1 connects integrated circuit (IC) O-1 again series limiting resistor RL1 and light emitting diode DZ1 meet positive source V+ again and formed, series limiting resistor RL1 and light emitting diode DZ1 meet positive source V+ and are formed warning circuit more again behind connection integrated circuit (IC) O-1 after the resistance R 5 by negative level;
(6), self-checking circuit ZJ is that control analog switch K1, K2 form delay circuit by positive source V+ resistance in series R4, capacitor C 1 connection power cathode V-after connecting power switch K;
(7), working indicating DZ is connected the on-off circuit that inverter ic 6-7 forms oscillator control analog switch K4 by resistance R 10-11 with capacitor C 2; Connect inverter ic 5 after providing positive level to connect simulation K switch 4 by integrated circuit (IC) 9, form display circuit by connecing inverter ic 5 behind the anodal connection of light emitting diode DZ4 positive source V+, the negative pole series limiting resistor RL4, demonstration is closed in the upset of integrated circuit (IC) 9 level during alarm status;
(8), alarm control circuit BJ is connected by integrated circuit (IC) 9 and meets musical film YP after the simulation K switch 3 and loudspeaker LB is formed;
(9), power output circuit GS comprises monitored state circuit and alarm status circuit, the monitored state circuit provides negative level connection positive source V+ after resistance in series R12 meets photoelectrical coupler JK again behind company's inverter ic 8 to be formed by integrated circuit (IC) 9, and the alarm status circuit provides positive level connection positive source V+ after resistance in series R12 meets photoelectrical coupler JK again behind company's inverter ic 8 to be formed by integrated circuit (IC) 9;
(10), anti-high-tension electricity holding circuit BH comprises discharge and warning circuit and discharge loop; discharge and warning circuit monitor that by monitoring that output contact J3 connects behind series diode D3, resistance R 3, light emitting diode DZ0, the D2 successively output contact J1 is formed, and discharge loop is made up of positive source V+ series diode D1 connection power cathode V-.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420028539 CN2679698Y (en) | 2004-03-14 | 2004-03-14 | Monitoring warner for disconnection and short circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420028539 CN2679698Y (en) | 2004-03-14 | 2004-03-14 | Monitoring warner for disconnection and short circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2679698Y true CN2679698Y (en) | 2005-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420028539 Expired - Fee Related CN2679698Y (en) | 2004-03-14 | 2004-03-14 | Monitoring warner for disconnection and short circuit |
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| Country | Link |
|---|---|
| CN (1) | CN2679698Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569711A (en) * | 2013-10-22 | 2015-04-29 | 珠海格力电器股份有限公司 | Method and testing device for electronic component open/short circuit test |
-
2004
- 2004-03-14 CN CN 200420028539 patent/CN2679698Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569711A (en) * | 2013-10-22 | 2015-04-29 | 珠海格力电器股份有限公司 | Method and testing device for electronic component open/short circuit test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |