CN101577412A - Intelligent high-power electric appliance limiter - Google Patents
Intelligent high-power electric appliance limiter Download PDFInfo
- Publication number
- CN101577412A CN101577412A CNA2009100401025A CN200910040102A CN101577412A CN 101577412 A CN101577412 A CN 101577412A CN A2009100401025 A CNA2009100401025 A CN A2009100401025A CN 200910040102 A CN200910040102 A CN 200910040102A CN 101577412 A CN101577412 A CN 101577412A
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- power
- electric appliance
- limiter
- power supply
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Abstract
The invention discloses an intelligent high-power electric appliance limiter, which comprises the following parts: an executing switch, a power supply which uses a resistance capacitor to reduce the voltage, voltage regulator diode reverse current to supply power and a low power consumption voltage-stabilizing module 78L05 to stabilize the voltage, and supplies stable working voltage to a system; a main control system which uses an AVR single-chip ATmega8 as a system core controller for processing sampled signals, and achieving parameter set and intelligent control of high-power electric appliances, a release for controlling the executing switch, and an isolation control device for tripping power supply by controlling the release 4. The main control system is connected with a sampling mutual inductor, the power supply is connected with the main control system, and the isolation control device is connected with an AD converter arranged in the AVR single-chip ATmega8. The intelligent high-power electric appliance limiter can perform limit control on the large-power electric appliances by freely setting the power value level or the accumulated maximum power value level allowing a single electric appliance by a user, and make a safety electric appliance used normally.
Description
Technical field
The present invention relates to a kind of volitional check controller to high-power electric appliance, especially a kind of place of mixing use at polytype electrical equipment, the intelligent high-power electric appliance limiter to the identification and the volitional check of high-power electric appliance are controlled belongs to the Electrical Safety management domain.
Background technology
The electrical equipment kind of using in public electricity-usings such as dormitory zone is a lot, and fluorescent lamp, electric fan, desk lamp, bulb, computer, charger, hair dryer, electric cooker, electric furnace, immersion heater and warming stove etc. are arranged.Wherein, electrical appliance up to specification and violation high-power electric appliance are arranged, pure resistive electrical equipment, inductive electrical equipment etc. are arranged, when these electrical equipment mix and use general load limiter relatively be difficult to distinguish identification they, and there is very big immediate current in inductive load and Switching Power Supply even load, and light judges that from electric current being easy to look these is high-power electric appliance.In the students' dormitory, the use of high-power electric appliance exists great potential safety hazard especially.For convenient management and Electrical Safety, many electricity-limiters have been had on the market, but a lot of high-power electricity-limiters all directly adopt the mode of current detecting, relay control to control user's power supply, often since in violation of rules and regulations the user use when high-power in relay outage and moment of powering on and produce strong electric arc, cause the relay lost of life, life of product is not long; In numerous electricity-limiters, seldom have to allow and use the autonomous setup parameter value of user: allow the maximum power value of single electrical appliance and add up maximum power value etc.
Summary of the invention
The invention provides a kind of freely the setting and allow single electrical appliance performance number rank or accumulative total maximum power value rank to limit control, and make the normal intelligent high-power electric appliance limiter that uses of safe electrical appliance high-power electric appliance by the user.
For achieving the above object, the present invention has adopted following technical scheme:
Carry out switch;
With resistance-capacitance depressurization, the power supply of voltage stabilizing didoe reverse current, low-power consumption Voltage stabilizing module 78L05 voltage stabilizing, provide the power supply of stable operating voltage to system;
Mega8 is a system core controller with the AVR single chip computer AT, is used for sampled signal and handles, realizes the parameter setting of high-power electricity-limiter and the master control system of Based Intelligent Control;
The release of switch is carried out in control;
And the isolated controlling device that passes through control release dropout outage,
Master control system is connected with the sampling instrument transformer, and power supply is connected with master control system, and the built-in AD converter of isolated controlling device and AVR single chip computer AT mega8 is connected.
The present invention has following beneficial effect:
(1) resistance-capacitance depressurization power supply, little power consumption regulator block 78L05 are used in low-power consumption, design, make the whole system energy consumption lower.
(2) use flexibly, designed parameter setting input choice point, the user can independent and flexible setup parameter level.
(3) reliable and stable, adopt AVR single chip computer AT mega8 as the control core, built-in watchdog circuit has guaranteed the stability of system works more.
(4) safety durable because the employing switch goes out arc extinguishing release a little, is difficult for producing electric arc, uses safety durable more.
(5) cost is low, and the present invention is owing to use the resistance-capacitance depressurization single power supply in design, and circuit is simple, and the few little cost in light weight of volume of device is also lower.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail:
Fig. 1 is a theory diagram of the present invention;
Fig. 2 is a power supply schematic diagram of the present invention;
Fig. 3 is a sample circuit schematic diagram of the present invention.
Wherein, 1-carries out switch, 2-power supply, 3-master control system, 4-release, 5-isolated controlling device, the 6-instrument transformer of sampling.
Embodiment
As shown in Figure 1, comprise execution switch 1; With resistance-capacitance depressurization, the power supply of voltage stabilizing didoe reverse current, low-power consumption Voltage stabilizing module 78L05 voltage stabilizing, provide the power supply 2 of stable operating voltage to system; Mega8 is a system core controller with the AVR single chip computer AT, is used for sampled signal and handles, realizes the parameter setting of high-power electricity-limiter and the master control system 3 of Based Intelligent Control; The release 4 of switch 1 is carried out in control; And by the thread off isolated controlling device 5 of outage of control release 4, master control system 3 is connected with sampling instrument transformer 6, and power supply 2 is connected with master control system 3, and the built-in AD converter of isolated controlling device 5 and AVR single chip computer AT mega8 is connected.
Resistance-capacitance depressurization mode as shown in Figure 2 provides operating voltage, and when closing a switch to controlled users power supply, electricity-limiter simultaneously of the present invention system gets electric, and the induced current of current transformer is through forming the half-wave current signal in the loop after the halfwave rectifier.
Single supply LM358 discharge circuit passes through port IN input system single chip computer AT mgega8 after half-wave voltage signal is amplified 50 times as shown in Figure 3, input signal carries out judgment processing after changing by the single-chip microcomputer built in A/D converter, then carry out corresponding action:, then be failure to actuate if it is little of setting less than set point and integral power to insert single appliance power value; If insert single appliance power value greater than set point or integral power greater than set point, then by the tripping operation outage of threading off of isolated controlling device control release, thus the electricity consumption of restriction limited users.
Wherein, it is solder joint by correspondence that parameter select to be provided with, and with binary form setting, uses the user whether to select the value class that is provided with by the welding of solder joint.
Claims (3)
1. an intelligent high-power electric appliance limiter is characterized in that: comprise
Carry out switch (1);
With resistance-capacitance depressurization, the power supply of voltage stabilizing didoe reverse current, low-power consumption Voltage stabilizing module 78L05 voltage stabilizing, provide the power supply (2) of stable operating voltage to system;
Mega8 is a system core controller with the AVR single chip computer AT, is used for sampled signal and handles, realizes the parameter setting of high-power electricity-limiter and the master control system (3) of Based Intelligent Control;
The release (4) of switch (1) is carried out in control;
And the isolated controlling device (5) that passes through control release (4) dropout outage,
Master control system (3) is connected with sampling instrument transformer (6), and power supply (2) is connected with master control system (3), and the built-in AD converter of isolated controlling device (5) and AVR single chip computer AT mega8 is connected.
2. intelligent high-power electric appliance limiter according to claim 1 is characterized in that: described release (4) has the fox coral that goes out.
3. intelligent high-power electric appliance limiter according to claim 1 is characterized in that: described isolated controlling device (5) is a MOC3020 isolated controlling device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100401025A CN101577412A (en) | 2009-06-08 | 2009-06-08 | Intelligent high-power electric appliance limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100401025A CN101577412A (en) | 2009-06-08 | 2009-06-08 | Intelligent high-power electric appliance limiter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101577412A true CN101577412A (en) | 2009-11-11 |
Family
ID=41272243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100401025A Pending CN101577412A (en) | 2009-06-08 | 2009-06-08 | Intelligent high-power electric appliance limiter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101577412A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108695821A (en) * | 2017-04-06 | 2018-10-23 | 广东美的生活电器制造有限公司 | Electric appliance and its control method |
-
2009
- 2009-06-08 CN CNA2009100401025A patent/CN101577412A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108695821A (en) * | 2017-04-06 | 2018-10-23 | 广东美的生活电器制造有限公司 | Electric appliance and its control method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20091111 |