CN2338902Y - Multi-functional lightning protection power supply distribution box - Google Patents
Multi-functional lightning protection power supply distribution box Download PDFInfo
- Publication number
- CN2338902Y CN2338902Y CN 98226236 CN98226236U CN2338902Y CN 2338902 Y CN2338902 Y CN 2338902Y CN 98226236 CN98226236 CN 98226236 CN 98226236 U CN98226236 U CN 98226236U CN 2338902 Y CN2338902 Y CN 2338902Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- live wire
- zero line
- choke
- resistance
- 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 multifunctional lightning protection power supply distribution box which is used for an indoor lighting circuit. The utility model is characterized in that a surging and lightning protection circuit which comprises a choke, a varistor, a two-stage gas discharge pipe and a capacitance-resistance circuit is arranged between the output end of the leakage overload protector of the front stage of the control circuit of the distribution box and the output end of the power using circuit of the rear stage. The utility model has the advantages of leakage protection, short circuit protection and overloading protection, and plays effectively the protection actions of surging impulse and lightning pressure impulse in the power using circuit.
Description
The utility model relates to a kind of multifunctional power lightning protection distribution box that is used for the indoor lighting circuit:
At present the power supply distribution box that uses generally comprises control panel, casing and is installed in control circuit in the casing; though general access electric leakage and this common distribution box of overload protection arrangement play certain protective action to electric leakage, short circuit and overload in the control circuit, can't effectively protect instantaneous surge pulse and lightning impulse in the circuit.
The purpose of this utility model provides one and existing electric leakage and overload protection function, simultaneously the multifunctional power lightning protection distribution box that can effectively protect the instantaneous surge pulse in the circuit and lightning impulse.
The technical solution of the utility model is; except the prime at control circuit inserts fast acting fuse F1 and electric leakage overload protective device; between the input in electric leakage output of overload protective device and electricity consumption loop, a surge and lightning protection circuit are arranged, be serially connected with choke L on the live wire of this circuit
1, be serially connected with choke L on the zero line
2, choke L
1And L
2Be to be wound on two coils on the same high magnetic flux ferrite bead at choke L
1, L
2And between the electric leakage overload protective device output, be serially connected with piezo-resistance YM between live wire and zero line successively
1, fast acting fuse F
2With secondary gas discharge tube FD, a resistance R is arranged
2One end and F
2Be connected with the contact of FD, the other end is connected with the high-voltage output end of known three multiplication of voltage stepup transformer circuits, this stepup transformer circuit has two-stage in addition, one-level is connected with zero line, another grade is connected with live wire by the Test Switchboard TE that is installed on the control panel, also is being connected in series capacitor C in addition between live wire and the zero line
3And C
4, C
3With C
4Contact ground connection, capacitor C
2Also be serially connected between live wire and the ground wire; At choke L
1And L
2Back level and the input in electricity consumption loop between, be connected with the piezo-resistance YM in parallel between live wire and zero line with the electricity consumption loop
2, also be serially connected with resistance R in addition between live wire and zero line
1And capacitor C
1, they and YM
2Parallel connection, capacitor C
5Also with YM
2Be connected in parallel between live wire and the zero line.
Advantage of the present utility model is, except the electric leakage overload protective device of control circuit prime can guarantee protection to electric leakage, short circuit and overload, the capacitor C in the circuit
2, C
5And capacitance-resistance loop R
1, C
1Can absorb with the differential mode surge in the electric line, and capacitor C
3, C
4Can absorb the common mode surge again, in addition choke L
1, L
2Its impedance can be considered short circuit for industrial-frequency alternating current, make it and can not pass through and can show very high reactance value the surge of very high frequency and lightning voltage pulse, in addition, when indirect lightning strike arrives user's distribution box, piezo-resistance YM through electrical network
1Reach two utmost point discharge tube FD and born lightning voltage at this moment, in case reach the sense voltage value of piezo-resistance and the discharge voltage value of discharge tube, they just begin the conducting discharge, the lightning wave of releasing, piezo-resistance YM simultaneously
2Cooperate R
1, C
1The capacitance-resistance loop will be through piezo-resistance YM
1Release with discharge tube FD and the remaining lightning wave of decay that choke enters the back level after stopping absorbs fully, thereby effective protective action is played in surge pulse and lightning impulse.
Below in conjunction with accompanying drawing specific embodiment of the utility model is described further
Fig. 1 is the control circuit figure of multifunctional power lightning protection distribution box circuit of the present utility model.
As shown in Figure 1; prime at control circuit has inserted electronic type electric leakage overload protective device 1; it can select commercially available CV45 type electric leakage overload protective device for use, and level inserts the input in electricity consumption loop 3 behind the control circuit, and the electricity consumption loop of output can have one the tunnel also multichannel can be arranged.Between the input in electric leakage output of overload protective device and electricity consumption loop is to comprise a pair of choke L
1And L
2, piezo-resistance YM
1And YM
2, two utmost point gas discharge tube FD and capacitance-resistance loop be at interior surge and lightning protection circuit, for the surge pulse, the capacitor C in the circuit
2, C
5And R
1, C
1The capacitance-resistance loop can absorb the differential mode surge, and capacitor C
3, C
4Design choke L at the common mode surge
1, L
2Be two coils that are wound on the high magnetic flux ferrite bead, its impedance can be considered short circuit for industrial-frequency alternating current, and can show very high reactance value to the surge and the lightning voltage pulse of very high frequency, makes it and can not pass through.For indirect lightning strike voltage, when it when electrical network arrives user's distribution box, piezo-resistance YM
1Born lightning voltage with two utmost point discharge tube FD, in case reach the sensitivity value of piezo-resistance and the discharge voltage value of discharge tube, they just begin the conducting discharge, and the lightning voltage of releasing is simultaneously because choke L
1, L
2Barrier effect, the lightning voltage major part is released or the reflected back electrical network, the lightning wave of decay remnants that enters back level on a small quantity is by piezo-resistance YM
2Cooperate R
1, C
1The capacitance-resistance loop absorbs, and uses electric loading to obtain pure power frequency nominal supply voltages.Discharge tube Test Switchboard TE in the circuit be used at ordinary times or damage to crops caused by thunder weather later the user detect the discharge performance of two utmost point gas discharge tubes voluntarily, during the continuity test switch, high pressure of three multiplication of voltage stepup transformer circuits, 4 outputs, if discharge tube internal illumination, prove that then discharge tube is functional, can continue to use, otherwise then need change, can normally work effectively when guaranteeing next damage to crops caused by thunder, three multiplication of voltage stepup transformer circuits 4 are known booster circuit.
Claims (1)
1. multifunctional power lightning protection distribution box; comprise control panel; casing and the control circuit that is installed in the casing; the prime of described control circuit is connected to fast acting fuse F1 and electric leakage overload protective device (1); the back level inserts electricity consumption loop (3); it is characterized in that, be surge and lightning protection circuit (2) between the input of described electric leakage overload protective device (1) output and electricity consumption loop (3), is serially connected with choke L on the live wire of this circuit
1, be serially connected with choke L on the zero line
2, choke L
1And L
2Be two coils that are wound on the same high magnetic flux ferrite bead,
At choke L
1, L
2Between prime and the electric leakage overload protective device output, be serially connected with piezo-resistance YM between live wire and zero line successively
1, fast acting fuse F
2With two utmost point gas discharge tube FD, a resistance R is arranged
2One end and F
2Be connected with the contact of FD, the other end inserts the high-voltage output end of known three multiplication of voltage stepup transformer circuits (4), this stepup transformer circuit is polarity in addition, one utmost point is connected with zero line, another utmost point is connected with live wire by being installed in the Test Switchboard TE that is connected in series on the control panel, also is being connected in series capacitor C in addition between live wire and the zero line
3And C
4, C
3With C
4Contact ground connection, capacitor C
2Also be connected between live wire and the zero line;
At choke L
1And L
2Back level and the input in electricity consumption loop between, be connected with the piezo-resistance YM in parallel between live wire and zero line with the electricity consumption loop
2, also be serially connected with resistance R in addition between live wire and zero line
1And capacitor C
1, they and YM
2Parallel connection, capacitor C
5Also with YM
2Be connected in parallel between live wire and the zero line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98226236 CN2338902Y (en) | 1998-03-18 | 1998-03-18 | Multi-functional lightning protection power supply distribution box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98226236 CN2338902Y (en) | 1998-03-18 | 1998-03-18 | Multi-functional lightning protection power supply distribution box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2338902Y true CN2338902Y (en) | 1999-09-15 |
Family
ID=33976786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98226236 Expired - Fee Related CN2338902Y (en) | 1998-03-18 | 1998-03-18 | Multi-functional lightning protection power supply distribution box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2338902Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102148500A (en) * | 2011-03-16 | 2011-08-10 | 深圳茂硕电源科技股份有限公司 | Unique lightning protection circuit of LED (light-emitting diode) power supply |
| CN107741552A (en) * | 2017-09-29 | 2018-02-27 | 吴文丽 | A kind of intelligent grid fire wall over the ground |
| WO2021052205A1 (en) * | 2019-09-17 | 2021-03-25 | 青岛海尔空调电子有限公司 | Surge absorption circuit for single-phase air conditioning system |
-
1998
- 1998-03-18 CN CN 98226236 patent/CN2338902Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102148500A (en) * | 2011-03-16 | 2011-08-10 | 深圳茂硕电源科技股份有限公司 | Unique lightning protection circuit of LED (light-emitting diode) power supply |
| CN107741552A (en) * | 2017-09-29 | 2018-02-27 | 吴文丽 | A kind of intelligent grid fire wall over the ground |
| CN107741552B (en) * | 2017-09-29 | 2018-08-31 | 湖南万护科技发展有限公司 | A kind of intelligent grid fire wall over the ground |
| WO2021052205A1 (en) * | 2019-09-17 | 2021-03-25 | 青岛海尔空调电子有限公司 | Surge absorption circuit for single-phase air conditioning system |
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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 |