CN209419190U - A kind of low pressure multi-stage power source fuse blows warning device - Google Patents
A kind of low pressure multi-stage power source fuse blows warning device Download PDFInfo
- Publication number
- CN209419190U CN209419190U CN201920417965.9U CN201920417965U CN209419190U CN 209419190 U CN209419190 U CN 209419190U CN 201920417965 U CN201920417965 U CN 201920417965U CN 209419190 U CN209419190 U CN 209419190U
- Authority
- CN
- China
- Prior art keywords
- voltage
- connect
- transformer
- stablizer
- output
- 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
Links
Landscapes
- Emergency Alarm Devices (AREA)
Abstract
The utility model belongs to warning circuit field, disclose a kind of low pressure multi-stage power source fuse blows warning device, including transformer B1, rectifying tube GZ1, voltage-stablizer, power selection switch K, resistance R1, light emitting diode D1, capacitor C1, capacitor C2, speech chip and loudspeaker YD；Transformer B1 is more power taps transformers, the common end of power selection switch K is connect with the input terminal of fuse RD, selection end is connect with each point of tap of transformer B1 primary coil one end respectively, and the other end of transformer B1 primary coil is connect with the output end of fuse RD；The secondary coil both ends of transformer B1 are connect by rectifying tube with voltage-stablizer；The output both ends of voltage-stablizer are connected to after resistance R1 and light emitting diode D1 series connection, the output end of voltage-stablizer is also connect with speech chip, and the output end of speech chip is connect with loudspeaker YD；The utility model is suitable for low-tension supplies at different levels, can find fuse blows in time, can be widely applied to fuse blows alarm.
Description
Technical field
The utility model belongs to warning circuit field, and in particular to a kind of low pressure multi-stage power source fuse blows alarm dress
It sets.
Background technique
Fuse is common protective device in electrical engineering circuit at present, in the case where fuse is using more environment, such as coal
Electro-mechanical arts under mine often apply many fuses, when there is fuse blows in circuit, due to circuit environment in circuit
It is complicated, it is not easy to judge to be any road fuse blows, be measured one by one after ring current need to all being cut off, it is time-consuming and laborious, and
And also will affect the operation of not faulty circuit, it is, therefore, desirable to provide a kind of fuse blows warning device, so that service personnel
Any road fuse blows can be quickly found, repair processing in time, in order to avoid influence the stable operation of circuit.
Utility model content
The utility model overcomes the shortcomings of the prior art, technical problem to be solved are as follows: it is more to provide a kind of low pressure
Level power supply fuse blows warning device, to realize the fusing police instruction of fuse.
In order to solve the above-mentioned technical problem, a kind of the technical solution adopted in the utility model are as follows: low pressure multi-stage power source fusing
Device fusing warning device, including transformer B1, rectifying tube GZ1, voltage-stablizer, power selection switch K, resistance R1, light emitting diode
D1, capacitor C1, capacitor C2, speech chip and loudspeaker YD；The transformer B1 is more power taps transformers, the power supply choosing
The common end for selecting switch K is connect with the input terminal of fuse RD, selects end each with transformer B1 primary coil one end respectively
Divide tap connection, the other end of transformer B1 primary coil is connect with the output end of fuse RD；The secondary coil of transformer B1
Both ends are connect with the input terminal of rectifying tube GZ1, and the output both ends of rectifying tube GZ1 connect with the input both ends of the voltage-stablizer respectively
It connects, the output cathode of voltage-stablizer is connect after resistance R1, light emitting diode D1 with the output negative pole of voltage-stablizer, the output of voltage-stablizer
Anode is connect with the positive pole of speech chip, and the output negative pole of voltage-stablizer and the power cathode of speech chip connect, voice core
The output end of piece is connect with loudspeaker YD；Capacitor C1 is connected in parallel between the input both ends of voltage-stablizer, and capacitor C2 is connected in parallel
Between the output cathode and output negative pole of voltage-stablizer.
One end of the secondary coil of the transformer B1 is provided with fuse RD1.
The model 78L05 of the voltage-stablizer, the signal of the speech chip are VT66A.
The corresponding input voltage of each point of tap of the primary coil of the transformer B1 is respectively 1140V, 660V,
380V, 220V, 110V, the voltage of secondary coil output are 12V.
The utility model has the advantages that compared with prior art
1, the utility model proposes a kind of fuse alarm devices to be suitable for low-tension supply fuse blows reports at different levels
It is alert, it is wide using voltage range；
2, sound and light alarm signal can be issued in time when fuse fuse failure, prompting maintenance personal is which phase fuse is molten
Silk fusing only needs to disconnect fault loop when shortening maintenance time, and replacing, does not influence the normal work of faultless circuit；
3, the electric elements that the present invention uses are few, small in size, at low cost, are easily installed.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of low pressure multi-stage power source fuse blows warning device circuit diagram.
Specific embodiment
It, below will be to the utility model to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Technical solution in embodiment is clearly and completely described, it is clear that described embodiment is a part of the utility model
Embodiment, instead of all the embodiments；Based on the embodiments of the present invention, those of ordinary skill in the art are not making
Every other embodiment obtained under the premise of creative work out, fall within the protection scope of the utility model.
As shown in Figure 1, the utility model embodiment provides a kind of low pressure multi-stage power source fuse blows warning device, packet
Include transformer B1, selection switch K, rectifying tube GZ1, voltage-stablizer 78L05, resistance R1, light emitting diode D1, capacitor C1, capacitor C2,
Speech chip VT66A and loudspeaker YD.Wherein, transformer B1 is more power taps transformers, the public affairs of the power selection switch K
End is connect with the input terminal of fuse RD altogether, and end is selected to connect respectively with each point of tap of transformer B1 primary coil one end,
The other end of transformer B1 primary coil is connect with the output end of fuse RD；One end of the secondary coil of the transformer B1 is logical
Overcurrent fuse RD1 is connect with an input terminal of rectifying tube GZ1, the other end and rectifying tube of the secondary coil of the transformer B1
Another input terminal of GZ1 connects；The output both ends of rectifying tube GZ1 are connect with the input both ends of the voltage-stablizer 78L05 respectively,
The output cathode of voltage-stablizer 78L05 is connect after resistance R1, light emitting diode D1 with the output negative pole of voltage-stablizer 78L05；Pressure stabilizing
The output cathode of device 78L05 is also connect with the positive pole of speech chip VT66A, the output negative pole and voice of voltage-stablizer 78L05
The power cathode of chip VT66A connects, and the output end of speech chip VT66A is connect with loudspeaker YD；Capacitor C1 is connected in parallel
Between the input both ends of voltage-stablizer 78L05, capacitor C2 be connected in parallel voltage-stablizer 78L05 output cathode and output negative pole it
Between.
In addition, transformer B1 uses more power taps transformers in the present embodiment, when selection switch K selects different touchings
When point closure, the primary side of transformer B1 connects different coil numbers, selects switch K selection corresponding defeated by transformer primary
Enter power supply, Circuit Fault on Secondary Transformer can be made to export 12V power supply, that is to say, that in the present embodiment, the primary coil of transformer B1
The corresponding input voltage of each point of tap be respectively 1140V, 660V, 380V, 220V, 110V, the voltage of secondary coil output
For 12V.Therefore, the utility model is mining suitable for low-tension supplies at different levels, including 1140V, 660V, 380V, 220V, 110V etc.
Low-tension supply.
The working principle of the utility model is as follows: when fuse RD is worked normally, fuse both end voltage is zero, alarm
Device does not work；When fuse RD fuses, there is voltage output at the both ends fuse RD, at the beginning of this voltage input to transformer B1
Grade coil exports 12V alternating voltage, rectified pipe GZ1 rectification, capacitor C1 filtering, into pressure stabilizing from the secondary side of transformer B1
After device 78L05 pressure stabilizing, the DC voltage of 5V is exported, forms trouble power indicator light through resistance R1, light emitting diode D1 all the way, separately
It is filtered all the way through capacitor C2, supplies 1 foot and 3 feet of speech chip VT66A, exported by 1 foot and 2 feet, loudspeaker is pushed to issue report
Alert sound determines that fuse alarm phase fuse has fused by sound-light alarm, and after changing new fuse, fuse both ends are without electricity
Pressure output, sound-light alarm sound stop.Therefore, fusing warning device provided by the utility model can find which phase fuse is molten in time
It is disconnected, it handles in time, it is time saving and energy saving, and the normal use of faultless circuit is not influenced.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (4)
1. a kind of low pressure multi-stage power source fuse blows warning device, which is characterized in that including transformer B1, rectifying tube GZ1, steady
Depressor, power selection switch K, resistance R1, light emitting diode D1, capacitor C1, capacitor C2, speech chip and loudspeaker YD；It is described
Transformer B1 is more power taps transformers, and the common end of the power selection switch K is connect with the input terminal of fuse RD, is selected
It selects end to connect with each point of tap of transformer B1 primary coil one end respectively, the other end of transformer B1 primary coil and fusing
The output end of device RD connects；The secondary coil both ends of transformer B1 are connect with the input terminal of rectifying tube GZ1, and rectifying tube GZ1's is defeated
Both ends are connect with the input both ends of the voltage-stablizer respectively out, and the output cathode of voltage-stablizer is after resistance R1, light emitting diode D1
It is connect with the output negative pole of voltage-stablizer, the output cathode of voltage-stablizer and the positive pole of speech chip connect, the output of voltage-stablizer
The connection of the power cathode of cathode and speech chip, the output end of speech chip are connect with loudspeaker YD；Capacitor C1 is connected in parallel
Between the input both ends of voltage-stablizer, capacitor C2 is connected in parallel between the output cathode of voltage-stablizer and output negative pole.
2. a kind of low pressure multi-stage power source fuse blows warning device according to claim 1, which is characterized in that the change
One end of the secondary coil of depressor B1 is provided with fuse RD1.
3. a kind of low pressure multi-stage power source fuse blows warning device according to claim 1, which is characterized in that described steady
The model 78L05 of depressor, the signal of the speech chip are VT66A.
4. a kind of low pressure multi-stage power source fuse blows warning device according to claim 1, which is characterized in that transformer
The corresponding input voltage of each point of tap of the primary coil of B1 is respectively 1140V, 660V, 380V, 220V, 110V, secondary wire
The voltage of circle output is 12V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920417965.9U CN209419190U (en) | 2019-03-29 | 2019-03-29 | A kind of low pressure multi-stage power source fuse blows warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920417965.9U CN209419190U (en) | 2019-03-29 | 2019-03-29 | A kind of low pressure multi-stage power source fuse blows warning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209419190U true CN209419190U (en) | 2019-09-20 |
Family
ID=67945940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920417965.9U Expired - Fee Related CN209419190U (en) | 2019-03-29 | 2019-03-29 | A kind of low pressure multi-stage power source fuse blows warning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209419190U (en) |
-
2019
- 2019-03-29 CN CN201920417965.9U patent/CN209419190U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101521374B (en) | Short-circuit current limiting device of magnetic saturation reactor | |
| CN105226611B (en) | Short circuit/overload protecting circuit of single-phase transformer | |
| CN103474965A (en) | Low-cost alternating-current input overvoltage protection circuit and switching power supply | |
| CN102170178A (en) | High-voltage transmission line current coupling electricity-getting device | |
| CN102064515A (en) | Domestic intelligent electrical safe power distribution system | |
| CN103022978A (en) | Under-voltage protection circuit for multi-pulse-wave rectifying circuit | |
| CN201735934U (en) | Welding machine with low no-load output voltage | |
| CN204046134U (en) | A kind of phase failure protector circuit | |
| CN209419190U (en) | A kind of low pressure multi-stage power source fuse blows warning device | |
| CN201576891U (en) | Domestic intelligent electrical security distribution box | |
| CN202026162U (en) | Current coupling power taking device for high-tension transmission line | |
| CN207650312U (en) | Power of alterating and direct current system busbar and feeder line branch power off monitoring device | |
| CN202649375U (en) | Open circuit alarm device | |
| CN107329007A (en) | A kind of universal secondary nuclear phase instrument for transformer station | |
| CN105158669A (en) | Thyristor overvoltage detection circuit used for TCR type high-voltage SVC device | |
| CN206533298U (en) | Non- PT electricity getting devices with high-tension fuse | |
| CN206517035U (en) | Low-voltage distribution cabinet broken neutral line protection device | |
| CN205081453U (en) | Single -phase outage detection alarm device of 10kV | |
| CN201910610U (en) | Protective device for preventing zero wire from being broken to cause abnormal voltage to burn down power supply and utilization equipment | |
| CN206292294U (en) | A kind of transistor over-current detection circuit | |
| CN107015168B (en) | DC power supply voltage drop alarm device for power grid substation | |
| CN105811370B (en) | Double limit automatic protectors for the stable output of transformer voltage | |
| CN105717418A (en) | High voltage power transmission line indicator | |
| CN206819964U (en) | A kind of instruction device of fuse switch | |
| CN205158000U (en) | Control system recloses |
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: 20190920 Termination date: 20200329 |