CN105870878A - Abnormal charge and electric leakage single-phase breaker - Google Patents
Abnormal charge and electric leakage single-phase breaker Download PDFInfo
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- CN105870878A CN105870878A CN201510000341.3A CN201510000341A CN105870878A CN 105870878 A CN105870878 A CN 105870878A CN 201510000341 A CN201510000341 A CN 201510000341A CN 105870878 A CN105870878 A CN 105870878A
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Abstract
A single-phase breaker can conduct releasing and tripping within 0.1 s when a housing of an electrical appliance has abnormal charge or leakage or short circuit in other forms during overloading. The breaker has four parts: a single-phase breaker, a handset charger circuit board, a star resistor set, and a series body. If a housing of an electrical appliance carries an abnormal voltage, the housing and a load-side neutral wire of the single-phase breaker supply power to the handset charger circuit board, the handset charger circuit board generates a 5 V DC voltage and applies the voltage to two series ends of a 100 K[ohm] resistor and a 33 K[ohm] resistor of the star resistor set, and a 2.81 V DC voltage is divided from a middle connection point of the 100 K[ohm] resistor and the 33 K[ohm] resistor and applied to one end of a photoresistor. If the protected housing carries an abnormal AC voltage, a laser emitting tube emits light to induce quick reduction of the resistance of the adjacent photoresistor so that the photo resistor is conducted, a 0.3 V DC voltage appears at the other terminal of the photoresistor and is applied to a control electrode of a thyristor of the breaker, so that the thyristor is conducted, and the breaker conducts a releasing action to cut off power supply.
Description
Technical field
A kind of single-phase circuit breaker; Electrical Safety protection for general family, office, some electricity consumption place; when civil power phase line danger 140V ~ 250V voltage on electrical appliance shell band, in 0.1S, automatic trip is cut off the electricity supply; or and generation >=30mA electric leakage time also automatic trip can cut off the electricity supply in 0.1S, load side be short-circuited fault time 0.1S in automatic trip cut off the electricity supply.
Background technology
The single-phase circuit breaker sold in the market can only occur tripping action protection when leakage current is more than or equal to 30mA; during when the no ground protection of electrical appliance shell or without zero connection protection; if dangerous alternating voltage will not cause existing circuit breaker trip open circuit (such as Konka electrical leakage chopper DZ15LE-40/2901) in its shell abnormal belt; thus jeopardize power customer's safety; the design invention device can solve this problem, is avoided that again misoperation.
Summary of the invention
A kind of single-phase circuit breaker, has both that electric appliance casing is abnormal the most electric and electric leakage or short interruption function.This chopper is divided into four parts, the 63A single-phase circuit breaker 1 (Konka electrical leakage chopper DZ15LE-40/2901) that existing market is sold, the direct current 5V charger for mobile phone circuit board 2 (power supply adaptor JLD-050-0600) that existing market is sold, Y-connection resistance group 3,1M Ω resistance, luminous tube (glow tube or 3.2V green light LED diode), non-metal derby series connection one 4 of contacting to earth.4 combine connection by mode introduced below, possess the defencive function occurring abnormal charged, the electric leakage of electric appliance casing and short circuit these three situation to quick break for the moment.The following stated connection refers both to metallicity and connects, and is described and all states by page 6 accompanying drawing exhibition, and this explanation single-phase circuit breaker 1 in one's power is also applied for other single phase leakage brakers of the principle of similitude.
Line between the internal zero sequence current mutual inductor secondary coil of segmentation 63A single-phase open circuit 1 and resistance R2, concatenate into 1N4007 diode 1.5,1N4007 diode 1.5 negative electrode connects the A point of thyristor control pole input pickup resistance R2, and 1N4007 diode anode connects the B point of the divided outlet of zero sequence current mutual inductor secondary coil.
One of the mains electricity input end of 63A single-phase circuit breaker 1 neutral conductor outfan E and direct current 5V charger for mobile phone circuit board 2 F is connected, and another mains electricity input end G of 5V charger for mobile phone circuit board 2 is connected with by protection electric appliance casing.Direct current cathode output end H and the 63A single-phase circuit breaker 1 internal direct current circuit board public negative pole I of direct current 5V charger for mobile phone circuit board 2 is connected simultaneously.
Y-connection resistance group is 3.1,33K Ω resistance 3.2 of a 100K Ω resistance and 1K Ω photoconductive resistance 3.3 Y-connection, another pin of 100K Ω resistance 3.1 is connected with the cathode output end H of 5V direct-current mobile charger circuit board 2, and another pin of 33K Ω resistance 3.2 is connected with the cathode output end J of 5V direct-current mobile charger circuit board 2.
In Y-connection resistance, the negative electrode of another pin of 1K Ω photoconductive resistance 3.3 1N4007 diode 1.5 internal with 63A single-phase circuit breaker 1 is connected.The sensitive surface of the 1K Ω photoconductive resistance 3.3 that the exiting surface of the luminous tube (glow tube or 3.2 volts of green light LEDs) 4.2 in series connection one simultaneously 4 is close in Y-connection resistance group 4, the two seals with black material, accomplishes that light leak is not air tight.Series connection one 500 Ω ~ a certain foot of 1M Ω resistance 4.1 is connected with luminous tube 4.2, another foot is connected to electrical equipment nonisulated property shell, another foot of luminous tube 4.2 metallic plate above with 3cm × 7cm area 4.3(such as 0.4mm thickness aluminium sheet) it is connected, metallic plate 4.3 can the most also be attached on metope or be simply positioned on floor.
The design invention device has augmented that electric appliance casing not available for current all single-phase circuit breakers is abnormal the most charged but leakage current is less than sensitive effective cut-out function during 30mA.
The design invention device adopts the technical scheme that:
When single-phase circuit breaker 1 is in Guan Bi power supply state, if electrical appliance shell is unexpected thereafter, abnormal 140V ~ 250V alternating voltage on band, then this phases line voltage is by the mains electricity input end G point of electric appliance casing conduction to charger for mobile phone circuit board, owing to charger for mobile phone circuit board input F is connected with the city electrical neutral axis outfan E of single-phase circuit breaker 1, then charger for mobile phone circuit board 2 has suddenly civil power feed-in, charger for mobile phone circuit board 2 then produces rapidly DC5V voltage between DC output side JH, series connection dividing potential drop effect due to the resistance 3.1 in Y-connection resistance group 3 and resistance 3.2, just the direct current pressure drop to direct current output negative pole end about H2.8V is produced at star midpoint.
While electric appliance casing is with 140V ~ 250V over the ground alternating voltage, concatermer 500 Ω ~ 1M Ω resistance 4.1, luminous tube (LED or glow tube) 4.2, letting out ground metal derby 4.3, let out ground metal derby direct-to-ground capacitance etc. and constitute loop with the earth, size of current is 10- 4About A, luminous tube is excited and sends the 1K Ω photoconductive resistance 3.3 of radiation of visible light Y-connection resistance, reduces between 1K Ω photoconductive resistance 3.3 resistance Shun.
Owing to reducing between above-mentioned 1K Ω photoconductive resistance 3.3 resistance Shun, the midpoint 2.8V DC voltage of Y-connection resistance group is after photoconductive resistance 3.3 turns on pressure limiting, A point in single-phase circuit breaker produces 0.3V DC voltage (the 1N4007 diode 1.5 wherein installed additional in 63A chopper 1 plays a part to prevent electric current through ZCT secondary coil), this 0.3VDC voltage controls pole through resistance R2 feed-in IGCT SCR100-6, causes IGCT pipe transient switching.Due to IGCT transient switching, single-phase 63A chopper in-built electrical magnet attraction trip gear is driven to quick break.
When electric appliance casing is without exception, charger for mobile phone circuit board 1 inputs without alternating current, does not consumes energy, and without direct current output, luminous tube 4.2 is the most luminous, if when not having other to leak or short circuit condition simultaneously, single-phase circuit breaker is failure to actuate, normal power supply.
The design invention device has following advantage
Owing to using photo-electric control break-make mode; achieve being dielectrically separated from of this device and electrical appliance shell; both are independent of each other; voltage-limiting current-limiting protection plus 500 Ω in concatermer ~ 1M Ω resistance 4.1; metallic plate 4.3 in concatermer will not be made when leakage pressure also and then to carry dangerous voltage, and this device is fool proof in a word.
This device, owing to using current charger for mobile phone circuit board as driving signal to produce source, so power consumption is few when obtaining signalizing activity, and is swift in response.
This apparatus structure is simple, and owing to using the materials such as 1N4007 diode, whole device is very reliable, is quick on the draw, and safeguards very simple, and with low cost.
This device is few to the transformation of former single-phase circuit breaker 1, is only off a wire and accesses 1N4007 diode one, and test proves that original electric leakage and the short-circuit protection function of former single-phase circuit breaker 1 are not had any impact.
Accompanying drawing explanation
The exception of Fig. 1: the present invention charged and electric leakage single-phase circuit breaker circuit catenation principle figure:
63A single-phase circuit breaker 1------1N4007 diode 1.5
Direct current 5V charger for mobile phone circuit board 2
Mono-100K Ω resistance 3.1 of Y-connection resistance group 3-----
One 33K Ω resistance 3.2
One 1K Ω photoconductive resistance 3.3
1M Ω resistance, luminous tube (glow tube or 3.2V green light LED diode), the non-metal derby series connection one 4------that contacts to earth
500 Ω ~ 1M Ω resistance 4.1
Luminous tube 4.2
Metallic plate 4.3
Detailed description of the invention:
When single-phase circuit breaker 1 is in Guan Bi power supply state, if electrical appliance shell is unexpected thereafter, abnormal 140V ~ 250V alternating voltage on band, then this phases line voltage is by the mains electricity input end G point of electric appliance casing conduction to charger for mobile phone circuit board, owing to charger for mobile phone circuit board input F is connected with the city electrical neutral axis outfan E of single-phase circuit breaker 1, then charger for mobile phone circuit board 2 has suddenly civil power feed-in, charger for mobile phone circuit board 2 then produces rapidly DC5V voltage between DC output side JH, series connection dividing potential drop effect due to the resistance 3.1 in Y-connection resistance group 3 and resistance 3.2, just the direct current pressure drop to direct current output negative pole end about H2.8V is produced at star midpoint.
While electric appliance casing is with 140V ~ 250V over the ground alternating voltage, concatermer 500 Ω ~ 1M Ω resistance 4.1, luminous tube (LED or glow tube) 4.2, letting out ground metal derby 4.3, let out ground metal derby direct-to-ground capacitance etc. and constitute loop with the earth, size of current is 10- 4About A, luminous tube is excited and sends the 1K Ω photoconductive resistance 3.3 of radiation of visible light Y-connection resistance, reduces between 1K Ω photoconductive resistance 3.3 resistance Shun.
Owing to reducing between above-mentioned 1K Ω photoconductive resistance 3.3 resistance Shun, the midpoint 2.8V DC voltage of Y-connection resistance group is after photoconductive resistance 3.3 turns on pressure limiting, A point in single-phase circuit breaker produces 0.3V DC voltage (the 1N4007 diode 1.5 wherein installed additional in 63A chopper 1 plays a part to prevent electric current through ZCT secondary coil), this 0.3VDC voltage controls pole through resistance R2 feed-in IGCT SCR100-6, causes IGCT pipe transient switching.Due to IGCT transient switching, single-phase 63A chopper in-built electrical magnet attraction trip gear is driven to quick break.
When electric appliance casing is without exception, charger for mobile phone circuit board 1 inputs without alternating current, does not consumes energy, and without direct current output, luminous tube 4.2 is the most luminous, if when not having other to leak or short circuit condition simultaneously, single-phase circuit breaker is failure to actuate, normal power supply.
Embodiment one:
Single-phase circuit breaker 1 and 5V charger for mobile phone circuit board and Y-connection resistance group are combined by accompanying drawing annexation and is arranged on flitch plate, concatermer metal derby 4.3(thickness is smaller than 0.5mm, area 3cm × 7cm) to put on the metope being contained in after flitch plate and being attached to any material, concatermer 1M Ω resistance 4.1 is drawn an arbitrarily long wire and is connected to the grounded metal copper sheet of each socket.
Be under normal circumstances charger for mobile phone circuit board 2 will not power consumption, whole device will not misoperation, will not power up to electric appliance casing, electrical appliance can normal electricity consumption.
If being short-circuited, chopper can action open circuit immediately.
If there is this device dropout open circuit in 0.1S immediately more than or equal to 30mA of any type of electric leakage leakage current.
If occurring electric appliance casing charged and owing to no ground or imperfect earth cause leakage current at below 30mA, this device can occurring trip action open circuit at 0.1s, and whole device is the most charged in addition to 63A single-phase circuit breaker 1 mains electricity input end.Could power by reset hasp Deng after getting rid of above-mentioned several faults.
Using method:
Single-phase circuit breaker 1 and 5V charger for mobile phone circuit board and Y-connection resistance group are combined by accompanying drawing annexation and is arranged on flitch plate, concatermer metal derby 4.3(thickness is smaller than 0.5mm, area 3cm × 7cm) to put on the metope being contained in after flitch plate and being attached to any material, concatermer 1M Ω resistance 4.1 is drawn an arbitrarily long wire and is connected to the grounded metal copper sheet of each socket.
Be under normal circumstances charger for mobile phone circuit board 2 will not power consumption, whole device will not misoperation, will not power up to electric appliance casing, electrical appliance can normal electricity consumption.
If being short-circuited, chopper can action open circuit immediately.
If there is this device dropout open circuit in 0.1S immediately more than or equal to 30mA of any type of electric leakage leakage current.
If occurring electric appliance casing charged and owing to no ground or imperfect earth cause leakage current at below 30mA, this device can occurring trip action open circuit at 0.1s, and whole device is the most charged in addition to 63A single-phase circuit breaker 1 mains electricity input end.Could power by reset hasp Deng after getting rid of above-mentioned several faults.
Page 6 is accompanying drawing (circuit diagram) below.
Claims (11)
1. claim 1: a kind of single-phase circuit breaker, project name be abnormal the most charged and electric leakage single-phase circuit breaker, has both electric appliance casing abnormal the most electric and leak electricity or short interruption function.
2. this chopper is divided into four parts, the 63A single-phase circuit breaker 1 (Konka electrical leakage chopper DZ15LE-40/2901) that existing market is sold, the direct current 5V charger for mobile phone circuit board 2 (power supply adaptor JLD-050-0600) that existing market is sold, Y-connection resistance group 3,1M Ω resistance, luminous tube (glow tube or 3.2V green light LED diode), non-metal derby series connection one 4 of contacting to earth.
3.4 combine connection by mode introduced below, possess the defencive function occurring abnormal charged, the electric leakage of electric appliance casing and short circuit these three situation to quick break for the moment.
4. the following stated connection refers both to metallicity connection, is described and all states by accompanying drawing exhibition, and this explanation single-phase circuit breaker 1 in one's power is also applied for other single phase leakage brakers of the principle of similitude.
5. claim 2: the line between the internal zero sequence current mutual inductor secondary coil of segmentation 63A single-phase open circuit 1 and resistance R2, concatenate into 1N4007 diode 1.5,1N4007 diode 1.5 negative electrode connects the A point of thyristor control pole input pickup resistance R2, and 1N4007 diode anode connects the B point of the divided outlet of zero sequence current mutual inductor secondary coil.
6. one of mains electricity input end of claim 3:63A single-phase circuit breaker 1 neutral conductor outfan E and direct current 5V charger for mobile phone circuit board 2 F is connected, and another mains electricity input end G of 5V charger for mobile phone circuit board 2 is connected with by protection electric appliance casing.
7. direct current cathode output end H and the 63A single-phase circuit breaker 1 internal direct current circuit board public negative pole I of direct current 5V charger for mobile phone circuit board 2 is connected simultaneously.
8. claim 4: Y-connection resistance group is 3.1,33K Ω resistance 3.2 of a 100K Ω resistance and 1K Ω photoconductive resistance 3.3 Y-connection, another pin of 100K Ω resistance 3.1 is connected with the cathode output end H of 5V direct-current mobile charger circuit board 2, and another pin of 33K Ω resistance 3.2 is connected with the cathode output end J of 5V direct-current mobile charger circuit board 2.
9. claim 5: in Y-connection resistance, the negative electrode of another pin of 1K Ω photoconductive resistance 3.3 1N4007 diode 1.5 internal with 63A single-phase circuit breaker 1 is connected.
The sensitive surface of the 1K Ω photoconductive resistance 3.3 that the exiting surface of the luminous tube (glow tube or 3.2 volts of green light LEDs) 4.2 in series connection one the most simultaneously 4 is close in Y-connection resistance group 4, the two seals with black material, accomplishes that light leak is not air tight.
11. series connection one 500 Ω ~ a certain feet of 1M Ω resistance 4.1 are connected with luminous tube 4.2, another foot is connected to electrical equipment nonisulated property shell, another foot of luminous tube 4.2 metallic plate above with 3cm × 7cm area 4.3(such as 0.4mm thickness aluminium sheet) it is connected, metallic plate 4.3 can the most also be attached on metope or be simply positioned on floor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510000341.3A CN105870878A (en) | 2015-01-22 | 2015-01-22 | Abnormal charge and electric leakage single-phase breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510000341.3A CN105870878A (en) | 2015-01-22 | 2015-01-22 | Abnormal charge and electric leakage single-phase breaker |
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| Publication Number | Publication Date |
|---|---|
| CN105870878A true CN105870878A (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510000341.3A Pending CN105870878A (en) | 2015-01-22 | 2015-01-22 | Abnormal charge and electric leakage single-phase breaker |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2041452U (en) * | 1988-09-09 | 1989-07-19 | 上海铁道学院 | Safety protection socket for electric leakage |
| JP2009050084A (en) * | 2007-08-20 | 2009-03-05 | Kawamura Electric Inc | Single-phase, three-wire circuit breaker with neutral conductor interruption protection |
| CN101459302A (en) * | 2008-12-26 | 2009-06-17 | 钱加灿 | All-purpose leakage protection plug for ground wire live trip |
| CN204068200U (en) * | 2014-06-23 | 2014-12-31 | 长春师范大学 | A electrical leakage protector |
-
2015
- 2015-01-22 CN CN201510000341.3A patent/CN105870878A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2041452U (en) * | 1988-09-09 | 1989-07-19 | 上海铁道学院 | Safety protection socket for electric leakage |
| JP2009050084A (en) * | 2007-08-20 | 2009-03-05 | Kawamura Electric Inc | Single-phase, three-wire circuit breaker with neutral conductor interruption protection |
| CN101459302A (en) * | 2008-12-26 | 2009-06-17 | 钱加灿 | All-purpose leakage protection plug for ground wire live trip |
| CN204068200U (en) * | 2014-06-23 | 2014-12-31 | 长春师范大学 | A electrical leakage protector |
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Application publication date: 20160817 |