CN102394619A - Automatic household power supply switch having electricity limiting function and anti-lightning function - Google Patents
Automatic household power supply switch having electricity limiting function and anti-lightning function Download PDFInfo
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- CN102394619A CN102394619A CN2011102705732A CN201110270573A CN102394619A CN 102394619 A CN102394619 A CN 102394619A CN 2011102705732 A CN2011102705732 A CN 2011102705732A CN 201110270573 A CN201110270573 A CN 201110270573A CN 102394619 A CN102394619 A CN 102394619A
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Abstract
The invention relates to an automatic household power supply switch having an electricity limiting function and an anti-lightning function, which consists of a switch circuit, a load unit, a sensing circuit, a first discrimination circuit, a first execution circuit, a second discrimination circuit, a second execution circuit and a direct-current power supply, and is characterized in that: the switch circuit, the load unit and the sensing circuit are sequentially and serially connected into an alternative-current (AC) 220V power transmission circuit; the output of the sensing circuit is connected with the first discrimination circuit and the second discrimination circuit; the output of the first discrimination circuit is connected with the first execution circuit; and the output of the second discrimination circuit is connected with the second execution circuit. When any electric appliance in a house is turned on, the automatic household power supply switch is closed to automatically supply the power (i.e. powered-on supply); and when all electric appliances in the house are turned off and stopped, the automatic household power supply switch can be automatically disconnected to power off (i.e. stopping power off); and when the household power consumption is overloaded or stroke by the lightning, the automatic household power supply switch can automatically disconnect an external power transmission circuit. By utilizing the switch, three effects such as power conservation, safety utilization of power supply and lightning resistance can be realized.
Description
Technical field
The present invention relates to the low-voltage electrical apparatus field, relate in particular to a kind of home-use having concurrently family's automatic power supply switch with anti-thunder function of rationing the power supply.
Background technology
All there are electrical equipment such as refrigerator, colour TV, air-conditioning, electric light in general family.In the described electrical equipment; Colour TV, air-conditioning etc. have the remote control performance; They by remote-control closedown after; Though host power supply has turn-offed, the power supply that remote control is wherein used (hereinafter to be referred as remote circuit) is still in energising, and every colour TV or air-conditioning still have the power consumption (hereinafter to be referred as " standby power consumption ") of the remote circuit about 6W.
Along with the progress in epoch, the router that many families are provided with the Internet " router " and most families all is the long round the clock never shutdown of opening.When shut down of computer, this is long opens the router that do not shut down also in the power consumption of no favour, and the power consumption of the no favour of this kind also can be advised the category into " standby power consumption ".
Chinese patent " ZL200520117312.7 remote control electrical appliance power supply breaks off controller " discloses the method for a kind of solution " standby power consumption ".But there is following shortcoming in the disclosed method of this patent:
When 1, " remote control electrical appliance " starts shooting; Must touch the button AN (asking for an interview Fig. 2, Fig. 3 of the Figure of description of ZL200520117312.7) " remote control electrical appliance " and described " remote control electrical appliance power supply break off controller " could operate as normal, seems that very trouble also is difficult to accepted by the user.
2, in " remote control electrical appliance ", the rated power of the colour TV 42E70RG of Skyworth is that 120W, 32E60HR are 60W; The rated power of the colour TV LED32K01Z of Hisense is 50W; The rated power of 1 air-conditioning is that the rated power of 735W, 1.5 air-conditionings is 1102.5W.
Fig. 2, Fig. 3 in conjunction with the Figure of description of ZL200520117312.7: diode D3, resistance R 2, triode BG are in series; If diode, triode are all with silicone tube (Si pipe) commonly used; Even disregard the pressure drop on the resistance R 2; Desire to make triode BG saturation conduction, the interchange pressure drop on the sample resistance R1 needs 1.4/ √ 2V (for the easy 1.4V that gets of narration) at least.
(1) be the colour TV LED32K01Z of Hisense of 50W if insert rated power separately; The AC220V loop current is 0.227A (not counting the influence of sample resistance R1 to the AC220V loop current); For making triode BG saturation conduction, it is R1=6.2 Ω that the resistance of sample resistance R1 is at least 6.2 Ω
(2) after the resistance of selected sample resistance R1; If inserting rated power separately is 1.5 air-conditionings of 1102.5W; At this moment; Pressure drop on the sample resistance R1 is 27.23V, when power is the 119.59W(calculated data; Counted the influence of sample resistance R1) to the AC220V loop current; Sample resistance R1, triode BG damage certainly in the case!
Otherwise; 1.5 air-conditionings as if with independent insertion rated power being 1102.5W are benchmark, and after the resistance of decision sample resistance R1, inserting rated power more separately is the colour TV LED32K01Z of Hisense of 50W; Then triode BG ends, the colour TV LED32K01Z of Hisense of the 50W work of can't switching on.
3, because " remote control electrical appliance " is connected in the AC220V loop with sample resistance R1, always there is pressure drop on the sample resistance R1, under the under-voltage condition that is lower than rated voltage AC220V so " remote control electrical appliance " always moves.
The above explanation, there is great defective in ZL200520117312.7.
Family a middle or short term nobody the time, for example: unmanned in the man of working back, unmanned in the short-term out on tours man, safest mode is with the AC220V dump in the family.But after cutting off the electricity supply, refrigerator just quits work, and the food that wherein stores will go mouldy, and this is a contradiction that needs the present invention to solve.
By the supply power mode of China, municipal electrical network is supplied power to the AC220V of family and all is unkitted electricity-limiter, in case the household electricity overloading causes that very easily electric wire is on fire.High-quality green tea mountain, Yuexi County, Anhui Province just took place because of mouse pierces in the electrical equipment, the mouse of burning causes that the electric wire overloading damages the incident of transmission line.
In addition, because the AC220V electric power system in China family does not all have lightning arrester, therefore, the message of electrical equipment such as the computer in the thunderbolt damage family, colour TV has report during medium.For example: in August, 2009, the incident of damage 20 multiple computers that are thundering just took place in Zhejiang Province's Fenghua City town; On August 11st, 2011, a family farmers' in NLD village, Zhenhai District, Ningbo City, Zhejiang Province is struck by lightning, and three air-conditionings, two colour TVs in its family are all damaged by thunder and lightning.
For household electricity; Optimal mode is: no matter in the family whether the people is arranged; At household electricity not during overloading, when the switch of arbitrary electrical equipment (main frame of refrigerator, electric light, colour TV, air-conditioning etc.) closes (when starting shooting), the AC220V of family power connection power supply (hereinafter to be referred as the start power supply); When electrical equipment all turn-offs shutdown (but remote circuit does not turn-off), family's AC220V power supply just turn-offs (hereinafter to be referred as shutting down outage); In the household electricity overloading or when suffering thunderbolt (thunderbolt can be regarded as serious overloading), family's AC220V power supply just automatically shuts down (hereinafter to be referred as the overloading outage).
Summary of the invention
The object of the invention is exactly the deficiency to prior art, designs the family's automatic power supply switch of rationing the power supply with anti-thunder function that has concurrently of a kind of automatic realization " start power supply ", " shutting down outage ", " overloading outage ".
The present invention is mainly used in family, also can be used for students' dormitory, office, office building, building site or workshop.
Before setting forth realization above-mentioned purpose technical scheme of the present invention, at first set forth following situation:
1, for present a large amount of mechanical temperature-control refrigerators that use, in fact its power of compressor switch is exactly temperature switch, and when the temperature in the refrigerator was higher than design temperature, temperature switch was connected, and compressor energising work, begins refrigeration; When the temperature in the refrigerator was lower than design temperature, temperature switch broke off, and compressor cuts off the power supply, stops refrigeration.
Starting current was all greater than rated current when 2, household electrical appliance started, and impedance relatively low (hereinafter to be referred as " startup low-resistance ") when promptly starting is specially:
(a) household electrical appliance of the motor character of one type in refrigerator, air-conditioning, washing machine, starting current is 4～7 times of rated current;
(b) starting current of incandescent lamp is more than ten times of rated current;
(c) starting current of CRT colour TV is more than ten times of rated current;
(d) starting current of electricity-saving lamp, fluorescent lamp, tungsten halogen lamp is 2～2.5 times of rated current.
The present invention realizes that the technical scheme of said purpose is:
One, comprehensive utilization:
(1), " startup low-resistance " phenomenon that appears during appliance starting;
(2) when all electrical equipment is all connected by only surplus one or more remote circuit of shutdown, load unit (the present invention claims that this state is a stopped status, is called for short " shutdown "), the situation of the impedance that load unit appears relatively large (hereinafter to be referred as " shutdown high resistant ");
(3), the characteristic of piezo-resistance or ambipolar transient voltage restraining diode.
Two, a kind of family's automatic power supply switch of rationing the power supply that has concurrently of design with anti-thunder function.The described family's automatic power supply switch of rationing the power supply with anti-thunder function that has concurrently is made up of switching circuit, load unit, sensing circuit, first discriminator circuit, first executive circuit, second discriminator circuit, second executive circuit and DC power supply, is characterised in that: ambipolar transient voltage restraining diode TVS1 is attempted by AC220V input, described switching circuit, load unit, sensing circuit and is serially connected in successively in the AC220V transmitting loop; The voltage u at switching circuit two ends
kVoltage u with described load unit two ends
LSum is AC220V; Sensor coil L in the described sensing circuit is enclosed within on the power transmission line of AC220V; The output of said sensing circuit connects first discriminator circuit and second discriminator circuit, and the output of first discriminator circuit connects first executive circuit, and first executive circuit is the make contact DH of first relay closed or break off in the control switch circuit then; The output of second discriminator circuit connects second executive circuit, and second executive circuit is the break contact DD2 of second relay on the power transmission line of the break contact DD1 of second relay and AC220V closed or break off in the control switch circuit then; The input of DC power supply is connected with AC220V, and the direct voltage Uc of its output supplies with first discriminator circuit, second discriminator circuit, first executive circuit and second executive circuit respectively; Described sensing circuit, first discriminator circuit, second discriminator circuit, first executive circuit, second executive circuit and the equal connection circuit of DC power supply ground.
Preferably, described switching circuit is made up of piezo-resistance (Voltage Dependent Resistor), hand switch, the make contact DH of first relay, the break contact DD1 of second relay.
Described hand switch be emergency button (when the present invention is malfunctioning, its manual closing.Like this, can not influence family's power supply), in following elaboration, it is in the state of disconnection all the time, and visual its " do not exist ".
When a certain electrical equipment is started shooting, the voltage u at described switching circuit two ends
kGreater than the puncture voltage (being pressure sensitive voltage or threshold voltage) of piezo-resistance in this switching circuit, piezo-resistance is low-resistance and conducting; When electrical equipment all shuts down, described voltage u
kLess than the puncture voltage of piezo-resistance, piezo-resistance by and be high resistant.
Control procedure of the present invention is:
1, start power supply control: when in the load unit during a certain electrical equipment start (at this moment; The load of load unit is: the electrical equipment of described start reaches " remote circuit " of other electrical equipment parallelly connected with it); Load unit presents " startup low-resistance " (for the ease of explanation or understand control procedure of the present invention; We can do following " exaggeration " supposition: when load unit presents " startup low-resistance ", the impedance that load unit appears → 0, cause load unit voltage u
L→ 0 and the voltage u at switching circuit two ends
k→ 220V.Actual measurement real work situation, the result is close with above supposition), the voltage u at switching circuit two ends
kGreater than the puncture voltage of piezo-resistance, piezo-resistance conducting, alternating current i
LJust through its circulation, sensing circuit obtains corresponding induced signal voltage u
s, make the voltage U of its output
3Reference voltage U greater than first discriminator circuit
2, first discriminator circuit output high level, first executive circuit then the make contact DH of first relay in the driving switch circuit are closed, and state, family's AC220V power supply that the present invention gets into " start power supply " are switched on.At this moment, since the closure of the first relay make contact DH, the voltage u at switching circuit two ends
k=0, piezo-resistance is ended and get into the state of " rest ".Described piezo-resistance has played the closed effect of " triggering " first relay make contact DH in the control procedure of this " start power supply ".After of short duration " triggering " process finishes, alternating current i
LThen change first relay make contact DH circulation by closure, and, the voltage u at switching circuit two ends
k=0, power consumption also is zero, and the electrical equipment that has started in the load unit does not move by rated voltage AC220V not under-voltagely.
2, shut down outage control: when all electrical equipment all by shutdown (remote-control closedown or manually shutdown), when only surplus one or more remote circuit of load unit connects, load unit presents " shutdown high resistant ", alternating current i
LReduce, cause the signal voltage u of sensing circuit induction
sAlso less relatively, the voltage U of its output
3Reference voltage U less than first discriminator circuit
2, the first discriminator circuit output low level, first executive circuit resets, causes the make contact DH of first relay in the switching circuit disconnection that resets.At this moment; Because load unit presents " shutdown high resistant " (for the ease of explanation or understand described shutdown outage control procedure; We can do following " exaggeration " supposition: when load unit presents " standby high resistant ", impedance → ∞ that load unit appears, cause load unit voltage u
L→ 220V and the voltage u at switching circuit two ends
k→ 0), therefore, the voltage u at switching circuit two ends
kLess than the puncture voltage of piezo-resistance, piezo-resistance is ended.The disconnection because the make contact DH of first relay has resetted, piezo-resistance are also ended, so, alternating current i
L→ 0, the present invention just gets into the state of " shutting down outage ", and family's AC220V power supply is cut off.
In the process of above-mentioned start power supply control and shutdown outage control, the voltage u at switching circuit two ends
kFollowing characteristic is arranged: in the electrical equipment start, when load unit presents " startup low-resistance ", u
kValue greater than the puncture voltage of piezo-resistance; When the first relay make contact DH is closed, u
k=0; When all electrical equipment is all shut down, when load unit presents " shutdown high resistant ", u
kValue less than the puncture voltage of piezo-resistance.With u
kValue corresponding, the piezo-resistance in the switching circuit then has following characteristic in above-mentioned start power supply control and the process of shutting down outage control: in the electrical equipment start, when load unit presents " startup low-resistance ", described piezo-resistance conducting; When the first relay make contact DH was closed, described piezo-resistance was ended; When all electrical equipment is all shut down, when load unit presented " shutdown high resistant ", described piezo-resistance was also ended.
Piezo-resistance in the described switching circuit also can use ambipolar transient voltage restraining diode (Transient Voltage Suppressor Diode) to substitute; The first relay make contact DH in the described switching circuit also can use bidirectional thyristor, and (Triode AC Switch TRIAC) substitutes.
3, overloading outage control: we can be through setting up the reference voltage U of second discriminator circuit
6Value and set household electricity total load (promptly limit the household electricity gross power, be called for short " rationing the power supply "), 5KW for example.When family's electricity consumption not during overloading, the voltage U of sensing circuit output
3Reference voltage U less than second discriminator circuit
6, the second discriminator circuit output low level, second executive circuit then in the control switch circuit on the power transmission line of the break contact DD1 of second relay and AC220V the second relay break contact DD2 closed.In brief: when family's electricity consumption not during overloading, the break contact DD2 of second relay in the switching circuit on the power transmission line 2 of closed, the AC220V of the break contact DD1 of second relay is also closed.In the case, the present invention is with regard to practicable aforesaid " start power supply control " and " shutting down outage control ".
When family's electricity consumption overloading, the voltage U of sensing circuit output
3Reference voltage U greater than second discriminator circuit
6Second discriminator circuit output high level; Second executive circuit then in the control switch circuit break contact DD2 of second relay on the power transmission line 2 of the break contact DD1 of second relay and AC220V break off; Family's AC220V power supply just is cut off, and electric wire or electrical equipment are just removed because of overloading danger on fire thereupon.
4, anti-thunderbolt control: when power transmission line is struck by lightning; The voltage swells of AC220V input port; The puncture voltage that is higher than the ambipolar transient voltage restraining diode TVS1 that is connected in parallel on the AC220V input port; The effect that protection late-class circuit and electrical equipment do not receive lightning damage has been played in this just conducting of ambipolar transient voltage restraining diode TVS1; Simultaneously, when power transmission line is struck by lightning, input current i of the present invention
LRise; Be equal to the serious overloading of household electricity; At this moment; The break contact DD2 of second relay in the switching circuit on the power transmission line 2 of the break contact DD1 of second relay and AC220V all breaks off, and promptly the electric power system of family is broken off with outer transmission line (being municipal electrical network), has played the anti-thunder effect that protection electrical equipment is not struck by lightning.
The described ambipolar transient voltage restraining diode TVS1 that is connected in parallel on the AC220V input port also can substitute with piezo-resistance.
In brief; The present invention has family's automatic power supply switch of rationing the power supply with anti-thunder function concurrently; Household electricity is not during overloading, then: among the manager during arbitrary electrical equipment start, its just closure send electricity (i.e. start power supply) automatically; Among the manager all electrical equipment all turn-off shutdown, only when surplus remote circuit and router electricity consumption, it just breaks off automatic outage (promptly shutting down outage); Household electricity overloading or when being struck by lightning, it is the outer transmission line of automatic disconnection (being the overloading outage) just.
The invention has the beneficial effects as follows conspicuous:
1, when the present invention is in the state of " shutting down outage "; Family's AC220V general supply is cut off; The remote circuit of electrical equipment such as air-conditioning, colour TV, the power supply of router also are cut off thereupon, have played " low-carbon (LC) " economize on electricity effect that reduces " standby power consumption " of no favour.
With regard to a city, the quantity of above-mentioned " low-carbon (LC) " economize on electricity is surprising.Modern Family has two colour TVs (each of parlor, master bedroom), three air-conditionings (respectively in parlor, bedroom, study), a router at least, " standby power consumption " of nearly 35W.If by computer, colour TV, air-conditioning daily work eight hours, shut down and to calculate in 16 hours, then each household family " standby power consumption " that do not have favour an every day is 0.56KWh, be 204.4KWh every year.Beijing had 668.1 ten thousand families in 2010, and (list of references 1: Beijing's family quantity and scale change characteristics; The 6th Census Office, Beijing; 2011-05-30); After using the present invention, only Beijing can reduce " standby power consumption ": 204.4 * 668.1=136559.64 ten thousand KWh every year, is equivalent to nearly one month energy output of the Yellow River " tap " power station-Longyangxia Hydroelectric Power Station.
When 2, the present invention was in the state of " shutting down outage ", family's AC220V general supply was cut off, and had played the effect that strengthens the household safe electricity consumption.
3, can prevent the overloading electricity consumption and the fire incident that causes.
4, can prevent that thunderbolt from damaging electrical equipment.
Description of drawings
Fig. 1 is a functional-block diagram of the present invention,
Fig. 2 is the circuit theory diagrams of the preferred embodiment of the invention,
Fig. 3 is a mounting box sketch map of the present invention.
Embodiment
Below, in conjunction with accompanying drawing, the present invention is further described.
In conjunction with Fig. 1, Fig. 2: a kind of family's automatic power supply switch of rationing the power supply that has concurrently with anti-thunder function; It is made up of switching circuit 101, load unit 102, sensing circuit 103, first discriminator circuit 104, first executive circuit 105, second discriminator circuit 106, second executive circuit 108 and DC power supply 109, and be characterised in that: ambipolar transient voltage restraining diode TVS1 is attempted by the AC220V input; Described switching circuit 101, load unit 102, sensing circuit 103 are serially connected in the AC220V transmitting loop successively; The voltage u at switching circuit 101 two ends
kVoltage u with described load unit 102 two ends
LSum is AC220V; Sensor coil L in the described sensing circuit 103 is enclosed within on the power transmission line 4 of AC220V; The output that the output of said sensing circuit 103 connects first discriminator circuit 104 and second discriminator circuit, 106, the first discriminator circuits 104 connects first relay J in 105 control switch circuit 101 of first executive circuit, 105, the first executive circuits
1Make contact DH closed or break off; The output of second discriminator circuit 106 connects second relay J on the power transmission line 2 of break contact DD1 and AC220V of second relay J 2 in 108 control switch circuit 101 of second executive circuit, 108, the second executive circuits
2Break contact DD2 closed or break off; The input of DC power supply 109 is connected with AC220V, the direct voltage U of its output
cSupply with first discriminator circuit 104, second discriminator circuit 106, first executive circuit 105 and second executive circuit 108 respectively; Described sensing circuit 103, first discriminator circuit 104, second discriminator circuit 106, first executive circuit 105, second executive circuit 108 and DC power supply 109 equal connection circuit ground.
Among Fig. 2, first relay J
1Make contact DH, the break contact DD1 of second relay J 2, hand switch K
0, piezo-resistance VDR1 formed switching circuit 101.Their annexation is: the piezo-resistance VDR1 and first relay J
1Make contact DH parallel connection after, lower end (convenient for narration, this paper claims that the end points of the header direction of Fig. 2 is that the end points of upper end, footer direction is that the end points of lower end, left direction is that the end points of left end, right direction is a right-hand member) and hand switch K
03 ends of lower end and load unit 102 connect, the upper end is connected with the left end of the break contact DD1 of second relay J 2; Hand switch K
0The upper end be connected with 1 end of AC220V input port again after the right-hand member of the break contact DD1 of second relay J 2 is connected.In this switching circuit 101, piezo-resistance VDR1 (model MYG-07D) is a Primary Component, its parameter: puncture voltage need be selected and test meticulously, should guarantee to realize:
(1), at household electricity not under the condition of overloading, when a certain appliance starting, load unit 102 presented " startup low-resistance ", described piezo-resistance VDR1 answered conducting;
(2), connect when load unit 102 is merely one or more remote circuit, when presenting " shutdown high resistant ", described piezo-resistance VDR1 should end.
According to the characteristic of piezo-resistance, those skilled in the art's above-mentioned requirements of should being not difficult to realize.
Described piezo-resistance VDR1 can use ambipolar transient voltage restraining diode to substitute.
According to the characteristic of ambipolar transient voltage restraining diode, those skilled in the art's above-mentioned requirements of also should being not difficult to realize.
In this switching circuit 101, hand switch K
0Be emergency button, it always is in the state of disconnection usually, when having only the present invention to lose efficacy, and its just emergent manual closing.
Among Fig. 2, r
2The compressor of expression mechanical temperature-control type refrigerator, K
2Represent the temperature detect switch (TDS) of refrigerator; r
3Be electric light, K
3Mains switch for electric light; Dashed rectangle N representes colour TV, wherein r
nBe the main circuit of colour TV, remote circuit, the Kn that Rn is colour TV
2Be r
nRemote control switch, Kn
1Manual power switch for colour TV; Dashed rectangle A representes air-conditioning, and ra is that air-conditioner host, Ra are that remote circuit, the Ka of air-conditioning is the remote control switch of ra; More electrical equipment (for example electromagnetic oven, electric cooker etc.) is represented in " ... ".Household electrical appliance such as refrigerator, electric light, colour TV, air-conditioning have been formed load unit 102, but load unit 102 is not to be defined as above-mentioned household electrical appliance, but comprise all possible household electrical appliance; This is on record general knowledge, repeats no more here.But need to prove: 3 ends among Fig. 1, Fig. 2 represent that link that load unit 102 and link, 4 ends of switching circuit 101 represent load unit 102 and AC220V input 2 ends is (through power transmission line 4, second relay J
2Break contact DD2, power transmission line 2, described 4 ends and described 2 ends have been set up and have been got in touch).
Among Fig. 2, induction coil L (model: KTCT009), ambipolar transient voltage restraining diode TVS2, the 7th～the tenth diode D
7～D
10, the 5th capacitor C
5, the 6th capacitor C
6, the 13 resistance R
13, the 14 resistance R
14Formed sensing circuit 103 jointly.Wherein, ambipolar transient voltage restraining diode TVS2 plays the limited amplitude protection effect, prevents the induced signal voltage u that induction coil L obtains
sToo high and damage late-class circuit; The the 7th～the tenth diode D
7～D
10Form rectifier bridge; The 5th capacitor C
5, the 6th capacitor C
6Be filter capacitor; The 13 resistance R
13, the 14 resistance R
14Be divider resistance, their resistance should be selected and debug meticulously, guarantees present embodiment:
(1), when load unit 102 presents in " startup low-resistance ", the switching circuit 101 piezo-resistance VDR1 conducting, the voltage U of this sensing circuit 103 outputs
3Should be greater than the reference voltage U of first discriminator circuit 104
2But should be less than the reference voltage U of second discriminator circuit 106
6, promptly answer: U
6＞U
3＞U
2
(2), when load unit 102 appear in " shutdown high resistant ", the switching circuit 101 piezo-resistance VDR1 by the time, the voltage U of this sensing circuit 103 outputs
3Should be both less than the reference voltage U of first discriminator circuit 104
2Also should be less than the reference voltage U of second discriminator circuit 106
6Promptly answer: U
3＜U
2＜U
6
(3), when family's electricity consumption overloading or AC220V transmission line are struck by lightning, described U
3Should be greater than described U
6, that is: U
3＞U
6
The annexation of each components and parts is in this sensing circuit 103: sensor coil L is enclosed within on the AC220V power transmission line 4, and it is with after ambipolar transient voltage restraining diode TVS2 is parallelly connected, the negative pole of left end and the 7th diode D7, the 9th diode D
9Positive pole connect; Right-hand member and the 8th diode D
8Negative pole, the tenth diode D
10Positive pole connect; The 9th diode D
9Negative pole, the tenth diode D
10Negative pole, the 6th capacitor C
6Positive pole, the 5th capacitor C
5Right-hand member, the 14 resistance R
14Right-hand member all connect mutually; The 7th diode D
7Positive pole, the 8th diode D
8Positive pole, the 6th capacitor C
6Negative pole, the 5th capacitor C
5Left end, the 13 resistance R
13The voltage U of left end, this sensing circuit 103 outputs
3The equal connection circuit of negative terminal ground; The 14 resistance R
14Left end, the 13 resistance R
13The voltage U of right-hand member, this sensing circuit 103 outputs
3Anode all connect mutually.
Among Fig. 2, the tenth resistance R
10, the 11 resistance R
11, the 12 resistance R
12, integrated transporting discharging IC2-1 (
1/
2LM393) formed first discriminator circuit 104, their annexation is: the 12 resistance R
12Right-hand member meet direct voltage U
CAnode, left end and the 11 resistance R
11Right-hand member connects; Inverting input 2 pin and the 11 resistance R of integrated transporting discharging IC2-1
11Left end and the tenth resistance R
10Right-hand member connect; The tenth resistance R
10Left end, the equal connection circuit of the 4 pin ground of integrated transporting discharging IC2-1; The voltage U of normal phase input end 3 pin of integrated transporting discharging IC2-1 and sensing circuit 103 outputs
3Anode be connected.
This first discriminator circuit 104 is actually voltage comparator, adjusts the tenth resistance R
10, the 11 resistance R
11, the 12 resistance R
12Can obtain the reference voltage U that is fit on 2 pin of integrated transporting discharging IC2-1
2, the principle of adjustment is: when load unit 102 presents in " startup low-resistance ", the switching circuit 101 piezo-resistance VDR1 conducting, and described U
3Greater than described U
2When load unit 102 appear in " shutdown high resistant ", the switching circuit 101 piezo-resistance VDR1 by the time, described U
3Should be less than described U
2
Among Fig. 2, the 4th resistance R
4, the 5th resistance R
5, triode V
1(model C 9014), the 5th diode D
5, first relay J
1Formed first executive circuit 105.Their annexation is: the 5th resistance R
5Right-hand member, first relay J
1Right-hand member, the 5th diode D
5Negative pole all with direct voltage U
CAnode connect; The 4th resistance R
4Left end, triode V
1The equal connection circuit of emitter ground; Triode V
1Base stage, the 5th resistance R
5Left end, the 4th resistance R
4Right-hand member all be connected with output 1 pin of integrated transporting discharging IC2-1; Triode V
1Collector electrode, the 5th diode D
5Positive pole, first relay J
1Left end all connect mutually.
Among Fig. 2, the tenth resistance R
10, the 11 resistance R
11, the 12 resistance R
12, integrated transporting discharging IC2-2 (
1/
2LM393) formed second discriminator circuit 106, their annexation is: the 12 resistance R
12Right-hand member, 8 pin of integrated transporting discharging IC2-2 all meet direct voltage U
CAnode, the 12 resistance R
12Left end and the 11 resistance R
11Inverting input 6 pin of right-hand member and integrated transporting discharging IC2-2 connect; The voltage U of normal phase input end 5 pin of integrated transporting discharging IC2-2 and sensing circuit 103 outputs
3Anode connect.
This second discriminator circuit 105 in fact also is a voltage comparator, adjusts the tenth resistance R
10, the 11 resistance R
11, the 12 resistance R
12Can obtain the reference voltage U that is fit on inverting input 6 pin of integrated transporting discharging IC2-2
6, the principle of adjustment is:
(1) sets up U according to the power of rationing the power supply (for example 5KW) of family
6Value, coupling ratio, the 13 resistance R of the induction coil L in described sensing circuit 103
13, the 14 resistance R
14The determined situation of voltage ratio under, U
6Value big more, the power of rationing the power supply is big more, on the contrary the power of rationing the power supply is more little.
In conjunction with Fig. 2: because the input impedance of inverting input 6 pin of inverting input 2 pin of integrated transporting discharging IC2 1, integrated transporting discharging IC2-2 is very big, much larger than the tenth resistance R
10, the 11 resistance R
11, the 12 resistance R
12Resistance, so, the tenth resistance R
10, the 11 resistance R
11, the 12 resistance R
12To direct voltage U
CFor the relation of series connection dividing potential drop, so the voltage U on inverting input 2 pin of integrated transporting discharging IC2-1
2(be the reference voltage U of IC2-1
2) always less than the voltage U on inverting input 6 pin of integrated transporting discharging IC2-2
6(be the reference voltage U of IC2-2
6), i.e. U
6Permanent in U
2
(2), when load unit 102 presents in " startup low-resistance ", the switching circuit 101 piezo-resistance VDR1 conducting, described U
3Should be greater than described U
2But should be less than described U6, promptly; U
6＞U
3＞U
2
(3), when load unit 102 appear in " shutdown high resistant ", the switching circuit 101 piezo-resistance VDR1 by the time, described U
3Should be less than described U
2With described U
6, promptly: U
6＞U
2＞U
3
(4), when family's electricity consumption overloading (electrical power promptly transfinites) or AC220V transmission line are struck by lightning, described U
3Should be greater than described U
6, that is: U
3＞U
6
Among Fig. 2, the 6th～the 9th resistance R
6～R
9, integrated double D trigger IC1 (model C D4013), button AN, the 4th capacitor C
4, the second triode V
2, second relay J
2, the 6th diode D
6, LED formed second executive circuit 108, their annexation is: the 9th resistance R
9Right-hand member, 14 pin of integrated double D trigger IC1, the 4th capacitor C
4Positive pole, the right-hand member of button AN, the positive pole of LED, the 6th diode D
6Negative pole, second relay J
2Right-hand member all with direct voltage U
CAnode connect; The 8th resistance R
8Left end, the 6th resistance R
6Left end, the second triode V
2Emitter, 3 pin of integrated double D trigger IC1,5 pin, the equal connection circuit of 7 pin ground; The 8th resistance R
8Right-hand member, the 9th resistance R
9Left end, 6 pin of integrated double D trigger IC1 all be connected with output 7 pin of integrated transporting discharging IC2-2; The 7th resistance R
71 pin, upper end and the 6th resistance R of the integrated double D trigger IC1 of following termination
6Right-hand member, the second triode V
2Base stage connect; The second triode V
2Collector electrode, the 6th diode D
6Positive pole, second relay J
2The negative pole of left end, LED all connect mutually; The 4th capacitor C
4Negative pole, the left end of button AN all be connected with 4 pin of integrated double D trigger IC1.
Among Fig. 2, first resistance R
1, second resistance R
2, the 3rd resistance R
3, first capacitor C
1, second capacitor C
2, the 3rd capacitor C
3, first to fourth diode D
1～D
4, voltage stabilizing didoe DW, piezo-resistance VDR2 formed DC power supply 109 jointly, wherein, first resistance R
1, second resistance R
2, first capacitor C
1Be decompression device; First to fourth diode D
1～D
4Form rectifier bridge; Second capacitor C
2, the 3rd capacitor C
3Be filter capacitor; Voltage stabilizing didoe DW is a voltage-stabilizing device; The effect of piezo-resistance VDR2 is the relevant components and parts of surge pulse (for example lightning surge pulse, the pulse of open and close machine surge) damage back level that prevent on the AC220V.Their actings in conjunction are that first discriminator circuit 104, first executive circuit 105, second discriminator circuit 106, second executive circuit 108 provide galvanic current to press U
C
The control procedure of present embodiment is:
1, start power supply control: when in the load unit 102 during a certain electrical equipment start (at this moment; The load of load unit 102 is: the electrical equipment of described start reaches " remote circuit " of other electrical equipment parallelly connected with it); Load unit 102 presents " startup low-resistance ", the voltage u at switching circuit 101 two ends
kGreater than the puncture voltage of piezo-resistance VDR1, piezo-resistance VDR1 conducting, alternating current i
LJust through its circulation, induction coil L obtains corresponding induced signal voltage u
S, the voltage U that sensing circuit 103 is exported
3Greater than the reference voltage U on inverting input 2 pin of integrated transporting discharging IC2-1
2, the output 1 pin output high level of integrated transporting discharging IC2-1, the first triode V
1First relay J in conducting, the driving switch circuit 101
1Make contact DH closed, state, family's AC220V power supply that present embodiment just gets into " start power supply " are switched on.At this moment, because first relay J
1Make contact DH closed, make the voltage u at switching circuit 101 two ends
k=0, piezo-resistance VDR1 by and get into the state of " rest ".Described piezo-resistance VDR1 has played " triggering " first relay J in the control procedure of this " start power supply "
1The closed effect of make contact DH.After of short duration " triggering " process finishes, alternating current i
LJust through the first closed relay J
1Circulate in the moving DH contact of closing.
2, shut down outage control: when all electrical equipment all by shutdown (remote-control closedown or manually shutdown), when only surplus one or more remote circuit of load unit 102 connects, load unit 102 presents " shutdown high resistant ", alternating current i
LThe signal voltage u less relatively, that induction coil L obtains
sAlso less relatively, as to cause sensing circuit 103 to be exported voltage U
3Less than the reference voltage U on inverting input 2 pin of integrated transporting discharging IC2-1
2, the output 1 pin output low level of integrated transporting discharging IC2-1, the first triode V
1End, cause first relay J in the switching circuit 101
1The make contact DH disconnection that resets; At this moment, because load unit 102 presents " shutdown high resistant ", therefore, the voltage u at switching circuit 101 two ends
kLess than the puncture voltage of piezo-resistance VDR1, piezo-resistance VDR1 still ends; Because first relay J
1Resetted disconnection, piezo-resistance VDR1 of make contact DH also end, so, alternating current i
L→ 0, present embodiment just gets into the state of " shutting down outage ", and family's AC220V power supply is cut off.
3, family is unmanned a middle or short term; For example: unmanned in the man of working back; In the short-term out on tours man nobody the time, the present invention matches with the thermostat of mechanical temperature-control type refrigerator, can guarantee the normal operation of this type refrigerator by following program: the refrigerator temperature detect switch (TDS) is closed, load unit presents " startup low-resistance "; The present invention's " start power supply ", the compressor energising refrigeration of refrigerator; The refrigerator temperature detect switch (TDS) breaks off, load unit presents " standby high resistant ", and the present invention " shuts down outage ", and the compressor outage stops refrigeration.Therefore, family can not influence the normal use of this type refrigerator after the present invention is installed.
For the refrigerator that adopts single board computer control, because the energising and the outage of its compressor are controlled by single board computer, therefore, its power supply should directly meet AC220V (being 1 end and 2 ends of direct map interlinking 2) from " family's junction box ".After doing such processing, the present invention controls the power supply of other electrical equipment of family, but does not control the power supply of the refrigerator of described single board computer control.
4, overloading outage control: precedingly state, through adjusting the tenth resistance R
10, the 11 resistance R
11, the 12 resistance R
12Can set up the reference voltage U of described second discriminator circuit 106
6Value, that is: set up the value of the power of rationing the power supply of the present invention.
When family's electricity consumption not during overloading, the voltage U of sensing circuit 103 outputs
3Reference voltage U less than inverting input 6 pin of integrated transporting discharging IC2-2 in second discriminator circuit 106
6, the output 7 pin output low levels of integrated transporting discharging IC2-2, output 1 pin of integrated double D trigger IC1 is output low level also, the second triode V
2End second relay J
2Break contact DD1 (in switching circuit 101) and DD2 (on the power transmission line 2 of AC220V) all closed.In the case, the present invention is with regard to practicable aforesaid " start power supply control " and " shutting down outage control ".
When family's electricity consumption overloading, the voltage U of sensing circuit 103 outputs
3Reference voltage U greater than inverting input 6 pin of integrated transporting discharging IC2-2 in second discriminator circuit 106
6, the output 7 pin output high level of integrated transporting discharging IC2-2, output 1 pin of integrated double D trigger IC1 is also exported high level, the second triode V
2Conducting, second relay J
2Break contact DD1 (in switching circuit 101) and DD2 (on the power transmission line 2 of AC220V) all break off; Family's AC220V power supply just is cut off (being the overloading outage), and electric wire or electrical equipment are just removed because of overloading danger on fire thereupon, simultaneously; LED is lighted, and informs the household electricity overloading.Integrated double D trigger IC1 has " memory " function, in case the household electricity overloading, it remembers always and keep the state of this " overloading ", even the reason of household electricity overloading is removed, it still keeps the state of this " overloading ".After the reason of household electricity overloading is removed, if will remove this state, recover family's power supply, then need only SR AN of flicking, family's power supply just recovers.
5, anti-thunderbolt control: when power transmission line was struck by lightning, its consequence was equal to household electricity " serious overloading ", so the process of the process of the anti-thunderbolt of present embodiment and overloading outage control is basic identical, repeats no more here.Different has:
(1), when power transmission line is struck by lightning; The voltage swells of AC220V input port; The puncture voltage that is higher than the ambipolar transient voltage restraining diode TVS1 that is connected in parallel on the AC220V input port; This ambipolar transient voltage restraining diode TVS1 is (in the 1pS time) conducting just rapidly, has played the effect that protection the present invention and household appliances do not receive lightning damage;
(2), when power transmission line is struck by lightning, the induced voltage u in the sensing circuit 103
sRise, work as u
sValue when surpassing the puncture voltage of ambipolar transient voltage restraining diode TVS2 parallelly connected with it, just conducting of ambipolar transient voltage restraining diode TVS2 has been played and has been protected late-class circuit not receive the effect of lightning damage;
(3), when power transmission line is struck by lightning, the piezo-resistance VDR2 in the DC power supply 109 has also played the same effect of above-mentioned ambipolar transient voltage restraining diode TVS2, the infringement of promptly protecting late-class circuit not to be struck by lightning.
In brief: when power transmission line was struck by lightning, present embodiment just broke off the external AC 220V input electric wire of family, like this, can protect electrical equipment such as computer not receive lightning damage.
Fig. 3 is a mounting box sketch map of the present invention, and among the figure, AN representes in second executive circuit 108 SR AN; LED representes the LED in second executive circuit 108; 1, the input port of 2 expression external AC 220V power supplys, municipal electrical network inserts among the present invention through the power transmission line on power transmission line on the port one 1 and the port 22; 3,4 linked ports for the present invention and household internal AC220V electrical network, municipal AC220V power supply is through in the power transmission line 3 on the present invention and the port 3, the power transmission line 4 access AC220V of the family electrical networks on the port 4; Be equipped with in the mounting box 100 and remove hand switch K among Fig. 2
0Whole devices in addition.In conjunction with Fig. 2, hand switch K
0Can be installed in outside the mounting box 100 one of which termination port one, another termination port 3.The purpose of doing to arrange like this is: can reduce mounting box 100 volume, and can make hand switch K
0Installation have more flexibility, can attach it to only position in the family.
Claims (7)
1. one kind has family's automatic power supply switch of rationing the power supply with anti-thunder function concurrently; Be made up of switching circuit (101), load unit (102), sensing circuit (103), first discriminator circuit (104), first executive circuit (105), second discriminator circuit (106), second executive circuit (108) and DC power supply (109), it is characterized in that: ambipolar transient voltage restraining diode (TVS1) is attempted by the AC220V input; Described switching circuit (101), load unit (102), sensing circuit (103) are serially connected in the AC220V transmitting loop successively; Voltage (the u at switching circuit (101) two ends
k) with the voltage (u at load unit (102) two ends
L) sum is AC220V; Sensor coil L in the described sensing circuit (103) is enclosed within on the power transmission line (4) of AC220V; The output of said sensing circuit (103) connects first discriminator circuit (104) and second discriminator circuit (106); The output of first discriminator circuit (104) connects first executive circuit (105); The output of second discriminator circuit (106) connects second executive circuit (108); The input of DC power supply (109) is connected with AC220V, and the direct voltage of its output (Uc) is supplied with first discriminator circuit (104), second discriminator circuit (106), first executive circuit (105) and second executive circuit (108) respectively; Described sensing circuit (103), first discriminator circuit (104), second discriminator circuit (106), first executive circuit (105), second executive circuit (108) and DC power supply (109) be connection circuit ground all.
2. the family's automatic power supply switch of rationing the power supply that has concurrently as claimed in claim 1 with anti-thunder function; It is characterized in that: when a certain household electrical appliance in the load unit (102) are started shooting; Load unit (102) presents " startup low-resistance ", the voltage (u at switching circuit (101) two ends
k) value greater than the puncture voltage of the piezo-resistance (VDR1) in the switching circuit (101); When all household electrical appliance in the load unit (102) were all shut down, load unit (102) presented " shutdown high resistant ", the voltage (u at described switching circuit (101) two ends
k) value less than the puncture voltage of described piezo-resistance (VDR1).
According to claim 1 or claim 2 have family's automatic power supply switch of rationing the power supply concurrently with anti-thunder function; It is characterized in that: when a certain household electrical appliance in the load unit (102) are started shooting; Load unit (102) presents " startup low-resistance ", described piezo-resistance (VDR1) conducting; First relay (the J in switching circuit (101)
1) when make contact (DH) was closed, described piezo-resistance (VDR1) was ended; When all household electrical appliance in the load unit (102) were all shut down, load unit (102) presented " shutdown high resistant ", and described piezo-resistance (VDR1) is also ended.
4. like the described family's automatic power supply switch of rationing the power supply that has concurrently of one of claim 1-3 with anti-thunder function; It is characterized in that: when a certain household electrical appliance are started shooting in the load unit (102), piezo-resistance (VDR1) conducting in the switching circuit (101) and the first relay (J in the trigger switch circuit (101)
1) make contact (DH) closure, family's AC220V power supply is switched on.
5. like the described family's automatic power supply switch of rationing the power supply that has concurrently of one of claim 1-4 with anti-thunder function; It is characterized in that: when all household electrical appliance in the load unit (102) are all connected by only surplus one or more remote circuit of shutdown, load unit (102); Described load unit (102) presents " shutdown high resistant ", the first relay (J in the switching circuit (101)
1) make contact (DH) disconnection that resets; Described piezo-resistance (VDR1) is ended, alternating current i
L→ 0, family's AC220V power supply is cut off.
6. like the described family's automatic power supply switch of rationing the power supply that has concurrently of one of claim 1-5, it is characterized in that with anti-thunder function: when family's electricity consumption overloading, the voltage (U of sensing circuit (103) output
3) greater than the reference voltage (U of second discriminator circuit (106)
6), described second discriminator circuit (106) output high level, second executive circuit (108) be the second relay (J in the control switch circuit (101) then
2) the power transmission line (2) of break contact (DD1) and AC220V on the second relay (J
2) break contact (DD2) break off, family's AC220V power supply just is cut off.
7. like the described family's automatic power supply switch of rationing the power supply with anti-thunder function that has concurrently of one of claim 1-6, it is characterized in that: the piezo-resistance (VDR1) in the described switching circuit (101) can use ambipolar transient voltage restraining diode (Transient Voltage Suppressor Diode) to substitute; First relay (J1) make contact (DH) in the described switching circuit (101) also can be used bidirectional thyristor, and (Triode AC Switch TRIAC) substitutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110270573 CN102394619B (en) | 2011-09-14 | 2011-09-14 | Automatic household power supply switch having electricity limiting function and anti-lightning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110270573 CN102394619B (en) | 2011-09-14 | 2011-09-14 | Automatic household power supply switch having electricity limiting function and anti-lightning function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102394619A true CN102394619A (en) | 2012-03-28 |
| CN102394619B CN102394619B (en) | 2013-05-15 |
Family
ID=45861832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110270573 Expired - Fee Related CN102394619B (en) | 2011-09-14 | 2011-09-14 | Automatic household power supply switch having electricity limiting function and anti-lightning function |
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| Country | Link |
|---|---|
| CN (1) | CN102394619B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664385A (en) * | 2012-06-06 | 2012-09-12 | 宁波市镇海华泰电器厂 | Electricity limiting circuit with lightning protection function |
| CN109496011A (en) * | 2015-02-15 | 2019-03-19 | 王小雪 | A kind of LED circuit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030147192A1 (en) * | 2002-02-06 | 2003-08-07 | Glenn Crocker | Apparatus for protecting electronic equipment by detecting thunder |
| CN101950942A (en) * | 2010-09-19 | 2011-01-19 | 宁波市镇海华泰电器厂 | Short-circuit protection and anti-lightning circuit for plasma equipment |
| CN102176590A (en) * | 2011-03-01 | 2011-09-07 | 成都医学院 | Wire holder for automatically managing household electric appliances by computer |
-
2011
- 2011-09-14 CN CN 201110270573 patent/CN102394619B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030147192A1 (en) * | 2002-02-06 | 2003-08-07 | Glenn Crocker | Apparatus for protecting electronic equipment by detecting thunder |
| CN101950942A (en) * | 2010-09-19 | 2011-01-19 | 宁波市镇海华泰电器厂 | Short-circuit protection and anti-lightning circuit for plasma equipment |
| CN102176590A (en) * | 2011-03-01 | 2011-09-07 | 成都医学院 | Wire holder for automatically managing household electric appliances by computer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664385A (en) * | 2012-06-06 | 2012-09-12 | 宁波市镇海华泰电器厂 | Electricity limiting circuit with lightning protection function |
| CN109496011A (en) * | 2015-02-15 | 2019-03-19 | 王小雪 | A kind of LED circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102394619B (en) | 2013-05-15 |
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| CB03 | Change of inventor or designer information |
Inventor after: Wang Yi Inventor after: Zheng Kunli Inventor after: Zhang Huifang Inventor after: Wu Haifang Inventor after: Li Jinhai Inventor after: Yuan Dan Inventor after: Li Guangjun Inventor after: Wang Jiqing Inventor after: Ge Junkai Inventor after: Zhu Jianguo Inventor before: Wang Mengjin |
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Effective date of registration: 20151208 Address after: 315100 Zhejiang city of Ningbo province Yinzhou District fire pan Qiming Road No. 123 Street Patentee after: NINGBO YINZHOU POWER EQUIPMENT MANUFACTURING PLANT Patentee after: STATE GRID ZHEJIANG NINGBO YINZHOU POWER SUPPLY Co. Address before: 315200 Zhejiang province Zhenhai District of Ningbo City Jiao Chuan Ying Shi Qiao Zhu No. 74 Patentee before: NINGBO ZHENHAI HUATAI ELECTRIC APPLIANCE FACTORY |
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Address after: 315104 Zhejiang city of Ningbo province Yinzhou District fire pan Qiming Road No. 123 Street Patentee after: NINGBO YINZHOU ELECTRIC POWER EQUIPMENT MANUFACTORY Co.,Ltd. Patentee after: STATE GRID ZHEJIANG NINGBO YINZHOU POWER SUPPLY Co. Address before: 315100 Zhejiang city of Ningbo province Yinzhou District fire pan Qiming Road No. 123 Street Patentee before: NINGBO YINZHOU POWER EQUIPMENT MANUFACTURING PLANT Patentee before: STATE GRID ZHEJIANG NINGBO YINZHOU POWER SUPPLY Co. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 315104 Zhejiang city of Ningbo province Yinzhou District fire pan Qiming Road No. 123 Street Co-patentee after: STATE GRID ZHEJIANG NINGBO YINZHOU POWER SUPPLY Co. Patentee after: NINGBO YINZHOU ELECTRIC POWER EQUIPMENT MANUFACTORY Co.,Ltd. Address before: 315104 Zhejiang city of Ningbo province Yinzhou District fire pan Qiming Road No. 123 Street Co-patentee before: STATE GRID ZHEJIANG NINGBO YINZHOU POWER SUPPLY Co. Patentee before: NINGBO YINZHOU ELECTRIC POWER EQUIPMENT MANUFACTORY Co.,Ltd. |
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Effective date of registration: 20191106 Address after: 315104 No.123, Qiming Road, Yinzhou District, Ningbo City, Zhejiang Province Co-patentee after: STATE GRID ZHEJIANG NINGBO YINZHOU POWER SUPPLY Co. Patentee after: Yinzhou Electric Branch of Ningbo Yongneng Electric Power Industry Investment Co.,Ltd. Address before: 315104 Zhejiang city of Ningbo province Yinzhou District fire pan Qiming Road No. 123 Street Co-patentee before: STATE GRID ZHEJIANG NINGBO YINZHOU POWER SUPPLY Co. Patentee before: NINGBO YINZHOU ELECTRIC POWER EQUIPMENT MANUFACTORY Co.,Ltd. |
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