CN2077607U - Electricity-limiting protector - Google Patents
Electricity-limiting protector Download PDFInfo
- Publication number
- CN2077607U CN2077607U CN 90216926 CN90216926U CN2077607U CN 2077607 U CN2077607 U CN 2077607U CN 90216926 CN90216926 CN 90216926 CN 90216926 U CN90216926 U CN 90216926U CN 2077607 U CN2077607 U CN 2077607U
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- CN
- China
- Prior art keywords
- electricity
- user
- diode
- resistance
- limiting
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Abstract
The utility model discloses an electricity-limiting protector, belonging to an electricity-limiting and saving device, comprising a transducing part, an amplifier part, a time delay part, a drive part, a sound control part, a power supplying part, and an actuating mechanism. The electricity-limiting protector is used between the electrical meter of a user and a supply network for limiting the electric power consumption of the user and preventing the electric larceny of the user, and meanwhile the electricity-limiting protector has the function of power-off protection for the instantaneous short-circuit of the load of the user.
Description
The utility model is a kind of joint device of rationing the power supply, Electricity-limiting protector.
In recent years because the increasing rapidly of industrial production and civilian electric weight, make the contradiction of power supply shortage particularly outstanding, in order to solve this contradiction, the joint of having developed the civilian electric weight of various restrictions and the having prevented stealing device of rationing the power supply, device mostly fails to apply but these joints are rationed the power supply, its reason is that some technical problem does not solve as yet fully, and insufficiency has influenced and promoted the use of.As, saving the device of rationing the power supply should have before the overload outage, at first send warning to the user, leave the regular hour problem of excess load by oneself to the user, carry out the pressure outage again if in the time of fire alarming that limits, can not initiatively reduce load, device does not have this function and existing joint is rationed the power supply, so can not promote the use of.
The purpose of this utility model is to propose a kind of new joint automatic protector of rationing the power supply, and overcomes the existing joint existing shortcoming of device of rationing the power supply.This Electricity-limiting protector has user's excess load with the function of electric alarm, and leaves certain hour and reduce the function that automatically replies power supply behind the load the user, and power consumption that can limited subscriber can guarantee the normal electricity consumption of user again.
Major technique content of the present utility model is to remove to control non-contact switch by a cover electronic control circuit--silicon controlled conducting and shutoff, reach the purpose of restriction electric weight with the size of control load electric current, and again can the momentary power failure protection when load short circuits.
This Electricity-limiting protector divides F and the G of actuator to form by fax sense part A, amplifier section B, time-delay portion C, drive part D, acoustic control part E, power suppling part.Transducing part A is made up of inductance coil L, diode D2 and capacitor C 2; Amplifier section B is made up of operational amplifier IC1LM339N, potentiometer W and resistance R 1, R2; The time-delay portion C is made up of time-base circuit IC2NE555, resistance R 3, R4, R5, capacitor C3; Drive part D is made up of triode Q1, relay J and diode D3; Acoustic control part E is made up of triode Q2, sound discharge road musical sound IC3KC9003, ceramic buzzer M, resistance R 6, R7 and stand by lamp YE; The rectifier bridge that power unit F is made up of transformer T, diode D1, voltage stabilizing circuit IC4W7812, capacitor C 1 are formed; The non-contact switch that the G of actuator adopts controllable silicon K to form; Inductance coil L and controllable silicon K are connected between kilowatt-hour meter Wh and the supply network.
Technique effect of the present utility model is that this Electricity-limiting protector is to be loaded between user's kilowatt-hour meter and the supply network, so can prevent stealing effectively; In addition this device have after user's power consumption surpasses setting, can cut off the power supply automatically send sound simultaneously, light is reported to the police, and leave the regular hour and make the user reduce the function of automatic power after the load; The function that also has user's instantaneous short-circuit power-off protection simultaneously plays the effect of protection to user's consuming device, uses so this Electricity-limiting protector is convenient to user installation.This device volume is little, in light weight, cost is low, and the old and new's dwelling house all can be installed and used, and this device has huge social benefit and economic benefit after promoting.
Accompanying drawing 1 is circuit theory diagrams of the present utility model:
The A transducing part, the B amplifier section, the C part of delaying time, the D drive part, E acoustic control part, F power suppling part branch, G actuator, the L inductance coil, the D2 diode, C2 electric capacity, IC1 operational amplifier LM339N, the W potentiometer, R1, R2 resistance, IC2 time-base circuit NE555, R3, R4, R5 resistance, C3 electric capacity, the Q1 triode, the J relay, the D3 diode, 1,2,3,4,5,6, the contact of 7 relay J, IC3 musical film KC9003, the M ceramic buzzer, R6, R7 resistance, the YE stand by lamp, the T transformer, D1 two utmost point rectifier bridges, C1 electric capacity, IC4 voltage stabilizing circuit W7812, the K controllable silicon, the Wh kilowatt-hour meter, the RL user load.
Realize preferred plan of the present utility model as shown in the figure, this Electricity-limiting protector is by a cover Electronic Control non-contact switch silicon controlled conducting and a shutoff one by one, the purpose that the realization of control user load size of current is rationed the power supply.Its structure divides F and the G of actuator to form by transducing part A, amplifier section B, time-delay portion C, drive part D, acoustic control part E, power suppling part.Transducing part A is made up of inductance coil L, diode D2 and capacitor C 2; Amplifier section B is made up of operational amplifier IC1LM339N, potentiometer W and resistance R 1, R2; The time-delay portion C is made up of time-base circuit IC2NE555, resistance R 3, R4, R5, capacitor C3; Drive part D is made up of triode Q1, relay J and diode D3; Acoustic control part E is made up of triode Q2, sound discharge road IC3 musical film KC9003, ceramic buzzer M, resistance R 6, R7 and stand by lamp YE; The rectifier bridge that power unit F is made up of transformer T, diode D1, voltage stabilizing circuit IC4W7812, capacitor C 1 are formed; The non-contact switch that the G of actuator adopts controllable silicon K to form.
This Electricity-limiting protector is assembled into an integral body and is loaded in user's the watt-hour meter box, and inductance L, controllable silicon K are connected between kilowatt-hour meter Wh and the power supply network, in order to limit and to control user's power consumption.
The operation principle of this Electricity-limiting protector is: when surpassing setting with electric loading RL; line current increases; induced potential on the coil L also increases; by D2; the C2 rectifying and wave-filtering is through 1 of relay J; 2 contacts send into IC1 and and R1; W voltage divider partial pressure potential is compared; the inner difference that forms of circuit is amplified; export a positive signal; send into the Q1 base stage through R2; amplify output through it and promote the relay J action; make its contact 4; 5 open; K turn-offs; network electric power stops to power to load RL; another winding point 6 of while relay L; 7 releases disconnect IC2 input and ground, so IC2 exports a positive signal through R5; contact 2; 3 send into IC1, make relay J keep operate condition; meanwhile the IC3 phonation circuit sounds the alarm through Q2 amplification promotion M; YE also sends yellow warning signal, and this process is through IC2 and R3; C3 time-delay automatic recovery of power supply after 3 minutes is as still then repetitive operation of excess load.
Power consumption is less than 1W, so equal to have increased overload flow protection link to the user during this device operation.
Claims (1)
1, a kind of joint device of rationing the power supply, Electricity-limiting protector divides F and the G of actuator to form by transducing part A, amplifier section B, time-delay portion C, drive part D, acoustic control part E, power suppling part, it is characterized in that transducing part A is by inductance coil L, diode D
2And capacitor C
2Form; Amplifier section B is by operational amplifier IC
1LM339N, potentiometer W and resistance R
1, R
2Form; The time-delay portion C is by time-base circuit IC
2NE555, resistance R
3, R
4, R
5, capacitor C
3Form; Drive part D is by triode Q
1, relay J and diode D
3Form; Acoustic control part E is by triode Q
2, sound puts IC circuit
3KC9003, ceramic buzzer M, resistance R
6, R
7Form with stand by lamp YE; Power unit F is by transformer T, diode D
1The rectifier bridge, the voltage stabilizing circuit IC that form
4, the W7812 capacitor C
1Form; The non-contact switch that the G of actuator adopts controllable silicon K to form; Inductance coil L and controllable silicon K are connected between kilowatt-hour meter wh and the supply network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90216926 CN2077607U (en) | 1990-07-24 | 1990-07-24 | Electricity-limiting protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90216926 CN2077607U (en) | 1990-07-24 | 1990-07-24 | Electricity-limiting protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2077607U true CN2077607U (en) | 1991-05-22 |
Family
ID=4896004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90216926 Withdrawn CN2077607U (en) | 1990-07-24 | 1990-07-24 | Electricity-limiting protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2077607U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100546141C (en) * | 2004-04-19 | 2009-09-30 | Abb股份公司 | The self-supplied electronic protective device that is used for automatic circuit breaker |
-
1990
- 1990-07-24 CN CN 90216926 patent/CN2077607U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100546141C (en) * | 2004-04-19 | 2009-09-30 | Abb股份公司 | The self-supplied electronic protective device that is used for automatic circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |