CN2888712Y - Multifunctional household electrical appliance/electric source protector - Google Patents
Multifunctional household electrical appliance/electric source protector Download PDFInfo
- Publication number
- CN2888712Y CN2888712Y CN 200420095212 CN200420095212U CN2888712Y CN 2888712 Y CN2888712 Y CN 2888712Y CN 200420095212 CN200420095212 CN 200420095212 CN 200420095212 U CN200420095212 U CN 200420095212U CN 2888712 Y CN2888712 Y CN 2888712Y
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- circuit
- protector
- power supply
- indication
- sampling
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Abstract
The utility model relates called as a multifunctional domestic appliance or a power protector, belonging to the protector technology field. The utility model consists of two parts connected with the rivets, one of which is a mini type molded case air breaker 1 with an interrupter, and the other is a multifunctional protector, the shell 18 of which is plastic and inside which electronic circuits of different functions are arranged(referring to Fig 2). With only single function and is poor in reliability, the prior protectors cannot protect the safe running of the domestic appliance and power effectively. The utility model can fulfill synchronic monitor to a plurality of physical quantities of safe running simultaneously. Once a physical quantity changes to make the domestic appliance or personal security at risk, the protector will refuse to execute the power supply dictate or break the power circuit automatically. The utility model has 12 functions, with which the electric appliances in the protecting scope can be protected comprehensively and effectively and the shell of the electric appliances will never has the leakage current or voltage harmful to personal security.
Description
1. affiliated technical field:
The utility model belongs to the protector technical field, and title is multifunctional household electrical appliance, power supply protector.Along with the propelling of China's Four Modernizations, various daily, household electrical appliance enter huge numbers of families, public place of entertainment, hotel, restaurant, health care, repairs profession in a large number, fields such as universities and colleges, and power consumption is more and more big, and the single-phase 220 volts of power supplys of polyphyly.
" " outside improving the quality, also brought puzzlement to people except giving people's life increasing colour, even disaster and pain, thereby " " called for fun " anodontia tiger " by people.Because of power supply quality not high, ageing of insulation or damage, some weakness of various electrical equipment self and defective, improper use etc., the capital causes electrical equipment and supply line to produce various faults, electrical equipment is damaged, heavy then the people is got an electric shock, power supply short circuit causes fire, and people's lives and properties are sustained losses severely.The wildfire of Fa Shenging in recent years; much be because to the electrical equipment improper use, overload operation, reasons such as ageing of insulation cause short circuit and can not excise that power supply causes in moment; or the protection facility of installing is not enough or the protection facility is malfunctioning, does not play effective protective effect.
2. background technology:
Since nearly half a century; people are seeking to protect personal safety always; Electrical Safety; family expenses; the method of household appliance safe operation; made the protective device of multiple style; but the starting point of every kind of protective device only is to voltage; the variation of some physical quantitys of electric current or temperature designs; and most of protective devices all are the variations that is conceived to supply current; therefore; the solution performance that all can not be satisfied with; the family expenses that function varies; the variety of issue that household appliance is in operation and occurs; often do not have effective protective effect; people are lost the confidence to protector; numerous and confused these protective devices of removing are given it up, and make most of household electrical appliance; the family expenses single phase poaer supply almost is in operation under the unshielded state.
3. summary of the invention: the purpose of this utility model; be to avoid the deficiencies in the prior art, and provide a kind of inexpensive, thing is beautiful, can carry out multifunctional household electrical appliance, the power supply protector of omnibearing protection to any single-phase consuming device (comprising household electrical appliance, household appliance) and single phase poaer supply.Thereby this protector can be simultaneously directly to power supply voltage, load current, leakage current, consuming device, and several physical quantitys such as temperature rise of supply lines carry out synchronous monitoring and various consuming devices, household electrical appliances and power supply be under the tight monitoring operate.
4. embodiment:
The utility model can reach by following measure; the utility model is made up of the two large divisions and is comprised: one for small-sized plastic-shell air circuit, another part of arc control device are arranged is multi-function protector; its shell (being called cabinet) is formed by plastics; internal machine core is a printed circuit board (PCB); power circuit, voltage sampling circuit, reference voltage circuit, current potential comparison circuit, actuator etc. are housed on it, it is characterized in that:
A, also have temperature sampling and change-over circuit, leakage current sampling and change-over circuit, nature of trouble warning and light emitting diode display circuit, driving and holding circuit, tripping operation to show hold concurrently reset button, checkout button, out-put supply and PE terminal;
Power supply phase line, center line insert via the input terminal of 2P air circuit and insert the RC reduction voltage circuit at its input terminal, behind rectifying and wave-filtering as the power supply of master control borad, again through the voltage stabilizing circuit voltage stabilizing through adjusting, give four operational amplifiers [F1, F2, F3, F4] of potential comparator respectively, as reference potential, the relatively end of potential comparator F3, F4 is sent on another road via the voltage sampling circuit sampling.
B, temperature sensor after temperature sampling and change-over circuit conversion, deliver to the relatively end of potential comparator F2 from the consuming device for example shell or the detected signal of supply lines output of motor.
C, electricity leakage sensor after leakage current sampling and change-over circuit conversion, deliver to the relatively end of potential comparator F1 from the shell or the detected leakage current signal of power transmission line of electrical appliance.
Temperature-sensing element in D, the temperature sensor has been embedded in the aluminium cover, and transducer is connected with movement by linking plug-in unit, and transducer can be attached on the shell of consuming device or is bundled on the output line of power transmission line with 502 resin glues.
The detecting element of E, electricity leakage sensor has been installed on the movement, be connected with the relatively end of comparator F1 after the one end process dividing potential drop of its lead-out wire, the rectification, the other end is connected with ground wire, in the place that does not have ground wire, available electric wire draws as ground wire from the PE terminal.When the user uses, the ground sign ' ⊥ ' in three attaching plugs of electrical appliance need only be drawn lead, firmly be connected with shell consuming device, this protector just can be monitored leakage current, electrical leakage voltage.
F, because overvoltage that thunder and lightning caused and shoving; the upper limit of overvoltage protection value of this protector or the protection range of leakage current have been surpassed when its value; this protector all can send the instruction of tripping operation, cuts off power supply, guarantees the safety of household electrical appliance and transmission line.
5. description of drawings:
Fig. 1 be block diagram of the present utility model,
Fig. 2 be shape assumption diagram of the present utility model,
Fig. 3 is an electrical schematic diagram of the present utility model.
The utility model is described in further detail in connection with the accompanying drawing 1-3 of embodiment: with reference to Fig. 1, Fig. 2, the utility model by Two parts form: one is multi-function protector for small-sized plastic-shell air-break 1, another part of arc-chutes are arranged, and its shell (also Claim cabinet) 18 formed by plastics, be equipped with on the internal printed circuit board: power circuit 2, voltage sampling circuit 3, temperature sampling And change-over circuit 4, electric leakage sampling and change-over circuit 5, potential comparator 6, nature of trouble warning and circuit of LED 8, The terminal of executing agency 9, out-put supply and socket 10, give fixed voltage circuit 12, checking circuit and button 13, power supply indication 14, there are transmission line of electricity and consuming device or motor 11, temperature sensor 16 in tripping operation indication and SR 15, outside, leak Electric transducer 17 compositions such as grade. Mains supply indication light diode (LED) 1 is installed on the panel of cabinet 18, low voltage failure refers to Show LED 3, overvoltage indicating fault LED2,, overload or overheat accident indication LED 4, Electric leakage, short circuit, thunder and lightning surge indicating fault LED5 also are equipped with the double SR 15 of tripping operation indication, checkout button on the panel 13. With reference to Fig. 3 power circuit 2 by capacitance-resistance voltage reduction circuit Ro, Co, the compositions such as rectifier bridge D1-D4, capacitor C 1; Electricity Press sample circuit 3 to be formed by CW1, R2, R3, C2 etc.: potential comparator 6 by four operational amplifiers [F1, F2, F3, F4] form; Indicating fault 7 is made up of LED 2, LED3, LED4, LED5 etc.; Drive circuit 8 by R9, The compositions such as C4, Q, R10; Executing agency 9 is made up of tripping relay J, C5 etc.; Out-put supply and socket 10 are by sky The compositions such as the lead-out terminal of gas breaker and a collection of electric elements.
Undesired when operation, during air circuit 1 tripping operation, tripping operation instruction button 15 can be jumped out the plate face; After accident is got rid of, must press reset button 15, wait for after 3-5 minute that air circuit 1 just allows to close a floodgate and send.The two ends of checkout button 13 are in parallel with temperature sensor, can press this button once every other month, and whether the work of check movement is normal, when pressing this button, malfunction indicator lamp is bright, air circuit 1 moment tripping operation, tripping operation instruction button 15 is jumped out the plate face, the stop power supply.
When supply voltage is a rated value; consuming device does not have leak current fault; DK closes a switch; power supply indication LED 1 on the protector plate face is bright, and "-" terminal potential of potential comparator [F1, F2, F3, F4] is all than "+" terminal potential height, through comparator relatively after; all there is not high potential output; accident indicator light LED2, LED3, LED4, the LED5 Q that do not work does not have trigger current, and not conducting of Q does not have current flowing to be failure to actuate in the coil of tripping relay J.This moment the air circuit that closes a floodgate, the power supply output that its output has protected, electrical appliance can put into operation.If in consuming device or supply line have the leak current fault of any one electrical equipment or a certain section lead not get rid of; and in the time of might jeopardizing personal safety; as the air circuit ZK that closes; the electricity leakage sensor of this protector can detect this leakage current at once; through electric leakage sampling and change-over circuit conversion; "+" end of sending into F1 after the D5 rectification makes the current potential of "+" end be higher than the reference potential of "-" end; then F1 exports high potential; faulty indication LED5 is bright; electric current triggers Q through R9; the Q conducting; tripping mechanism is moved in the charged suction of J; air circuit 1 tripping operation; cut off power supply; the fault of consuming device or power transmission line can not worsen again; its shell is never with leakage current that may jeopardize personal safety or electrical leakage voltage; guaranteed the safety of electricity consumption, interrupting process can be finished in 0.1 second.
When supply voltage higher; when its value has surpassed 250v ± 5v; DK closes a switch; power supply indication LED 1 on the protector panel is bright; send into the C point through the voltage sampling circuit sampling; the current potential of F3 this moment "+" end can be higher than the reference potential of "-" end; F4 exports high potential, and LED2 is bright, and electric current triggers Q through R9; in case close a floodgate; Q just can conducting, and the moving tripping mechanism of the charged suction of J makes air circuit 1 tripping operation, and the instruction button that trips simultaneously 15 is jumped out the plate face: that is to say not allow air circuit to send electricity to give the user under this situation; consuming device can not turn round, and has reached the purpose of protection consuming device.
On the low side when supply voltage, its value is during for 160v ± 10v, and DK closes, power supply indication LED 1 on the protector panel is bright, send into the C point via the voltage sampling circuit sampling, the current potential of F4 this moment "-" end can be lower than the reference potential of "+" end, and LED3 is bright for F4 output high potential, electric current triggers Q via R9, in case close a floodgate, Q just can conducting, and tripping mechanism is moved in the charged suction of J, air circuit 1 tripping operation, the instruction button that trips simultaneously 15 is jumped out the plate face; That is to say not allow air circuit to send electricity to give the user under this situation, consuming device can not turn round, and has reached the purpose of protection consuming device.
More than three be called preventive protection or be referred to as static protection, that is to say: when service conditions did not possess, this protector did not allow air circuit 1 power supply of closing a floodgate.The existing any protective device of these defencive functions does not all have, and the utility model has been started the beginning.
When thunder and lightning is attacked directly and has had influence in the protection range of this protector; circuit will produce and shove, invade the supply line of this protector and many consuming devices, form induction overvoltage, overcurrent; the overvoltage protection of this protector, leakage current defencive function all can send trip command: the communication center of the tripping operation of order air circuit, cut-out and extraneous power supply grid makes all electric equipments and consuming device in its protection range obtain effective protection.
When various consuming devices in running, surpass the base load rating 20% of air circuit 1 of this protector when above because of certain reason causes total load; air circuit can automatic trip, cut off power supply, stop power supply, and has guaranteed the safety of supply network, kilowatt-hour meter, electric equipment.
Even so; if air circuit is malfunctioning because of adjusting, can not trip in good time; the temperature sensor of the then continuous rising of the temperature of supply lines meeting, this protector can capture this information; when temperature reaches capacity feasible value, this protector can send trip command; the air circuit cut-out power supply that can trip has immediately formed duplicate protection.
The above is every to be the dynamic protection function, sums up to get up to have:
(1) overvoltage protection; (2) under-voltage protection; (3) earth leakage protective; (4) overload protection; (5) overtemperature protection;
(6) short-circuit protection; (7) motor windings interturn short circuit protection; (8) lightning induction or surge protection:
(9) combined floodgate delay protection.
6 the utility model have following advantage compared to existing technology:
1, microelectronic integrated circuitization, defencive function is complete, compact conformation, debugging easily, installation, with low cost, action is accurately, and is safe and reliable.
2, integrate the guard method of the existing person, consuming device, motor, supply line etc., it is implemented omnibearing protection; In addition, also have power supply indication, nature of trouble alarm indication, tripping operation indication etc., be convenient to ruuning situation, nature of trouble that the user grasps various power consumption equipments.
3, the utility model has the preventive protection function, when service conditions does not possess, this protector can send carry out the to close a floodgate instruction of power supply of refusal.
4, the utlity model has overheat protective function, special creepage protection function; the former can prevent because of electric wire, the overheated initiation fire of consuming device; the latter can guarantee that the shell of various consuming devices never has the leakage current that jeopardizes personal life security or voltage is arranged; eliminated the prerequisite that people may get an electric shock; this be prior art can't be equal to, the method for sampling is the important breakthrough of prior art especially.
5, multi-function protector of the present utility model is fit to and various power, multiple number of poles, and for example the small air circuit breaker of (1P, 2P, 3P, 4P) is combined into intelligent multipole, multifunction protection circuit breaker.
6, the utility model can be found out leakage rapidly and got rid of, and has avoided fault further to enlarge, and improve power supply quality, eliminated the hidden danger that may get an electric shock, be that prior art is incomparable.
Claims (5)
1; a kind of multifunctional household electrical appliance; power supply protector [hereinafter to be referred as protector]; it is made up of two parts: one for there being the small-sized plastic-shell air circuit (1) of arc control device; another is a multi-function protector; its shell [(cabinet) 18] is formed by plastics that (printed circuit board (PCB) is equipped with in inside; the electronic circuit that the electronic component of various functions is formed is installed wherein; be referred to as movement); with rivet two parts riveted is integral; it is characterized in that: temperature sampling and change-over circuit (4) are arranged; electric leakage sampling and change-over circuit (5); drive and holding circuit (8); faulty indication and warning circuit (7); city's power supply indication (14); checkout button (13); the double reset button (15) of tripping operation indication; temperature sensor (16); electricity leakage sensor (17)
The connection of electronic circuit: 220 volts of phase line of power of civil power, center line, one tunnel input, another road that connects the 2P air circuit connects to the reference voltage of fixed voltage circuit (12) as potential comparator (6); The output termination power circuit (2), one tunnel of air circuit (1) connects power supply indication (14), another road connects potential circuit (3), sends into the relatively end of (F3, F4) in the potential comparator (6) after the sampling.For example motor or power supply electric wire detected signal are delivered to the relatively end of (F2) in the potential comparator (6) to temperature sensor (16) after temperature sampling and change-over circuit (4) conversion from consuming device (11); (F1) that the leakage current transducer is delivered to the potential comparator (6) after the detected signal of consuming device (11) is changed via leakage current sampling and change-over circuit (5) relatively holds; (F1, F2, F3, F4's) output in the comparator (6) is connected to the A point through faulty indication and warning circuit (7) with drive circuit (8) respectively mutually, be connected with the trigger electrode of Q through resistance, the aluminium cover can be attached to consuming device for example motor stator core or be bundled in the power supply electric wire output.
2, protector according to claim 1; its feature is that also the temperature-sensitive element in the temperature sensor (16) has been embedded in the aluminium cover; temperature sensor (16) is connected with corresponding two-line receptacle on the movement by the two wires latch; the relatively end of (F1) in one end of drawing and the potential comparator (6) is connected, and the other end can link to each other with ground wire or draw as the PE line.
3, protector according to claim 1; its feature is that also the sampling element of leakage current transducer has been installed on the movement; the relatively end of (F1) in one end of its lead-out wire and the potential comparator (6) is connected, and the other end can link to each other with ground wire or draw as the PE line.
4, protector according to claim 1; its feature is that also (18 are equipped with mains supply indication (LED1) to cabinet on the movement that protector is installed, wall of computer case face; the indication of failure alarm circuit (7) (LED2, LED3, LED4, LED5); checkout button (13), the double reset button (15) of tripping operation indication also are installed; the cabinet left side has shift fork to extend out in the dropout gap of air circuit (1), and both form the utility model multifunctional household electrical appliance, power supply protector to make cabinet (18) and air circuit (1).
5, protector according to claim 1, its feature are that also the two ends of checkout button and temperature-sensitive element are in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420095212 CN2888712Y (en) | 2004-11-17 | 2004-11-17 | Multifunctional household electrical appliance/electric source protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420095212 CN2888712Y (en) | 2004-11-17 | 2004-11-17 | Multifunctional household electrical appliance/electric source protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2888712Y true CN2888712Y (en) | 2007-04-11 |
Family
ID=38047283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420095212 Expired - Fee Related CN2888712Y (en) | 2004-11-17 | 2004-11-17 | Multifunctional household electrical appliance/electric source protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2888712Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101477927B (en) * | 2008-01-04 | 2012-01-04 | 湖北盛佳电器设备有限公司 | Electricity exception protection circuit applied to circuit breaker |
| CN101770847B (en) * | 2009-01-05 | 2012-06-20 | 胜德国际研发股份有限公司 | Improved inductor, power protector and power socket |
| CN106569520A (en) * | 2016-11-11 | 2017-04-19 | 成都意科科技有限责任公司 | Power supply monitoring module based on LCD |
-
2004
- 2004-11-17 CN CN 200420095212 patent/CN2888712Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101477927B (en) * | 2008-01-04 | 2012-01-04 | 湖北盛佳电器设备有限公司 | Electricity exception protection circuit applied to circuit breaker |
| CN101770847B (en) * | 2009-01-05 | 2012-06-20 | 胜德国际研发股份有限公司 | Improved inductor, power protector and power socket |
| CN106569520A (en) * | 2016-11-11 | 2017-04-19 | 成都意科科技有限责任公司 | Power supply monitoring module based on LCD |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHEN CHENGYUN Free format text: FORMER OWNER: YANG FASHENG Effective date: 20070928 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20070928 Address after: Room 17H, B block 510630 in Guangdong Province, Guangzhou city Zhongshan Road No. 207 calendar house Patentee after: Chen Chengyun Address before: 510500, room 50, 702 Longgang Road, Shahe, Guangdong, Guangzhou, China Patentee before: Yang Fasheng |
|
| 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 |