CN103532095A - Novel energy-saving electric load limiter - Google Patents
Novel energy-saving electric load limiter Download PDFInfo
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- CN103532095A CN103532095A CN201210223405.2A CN201210223405A CN103532095A CN 103532095 A CN103532095 A CN 103532095A CN 201210223405 A CN201210223405 A CN 201210223405A CN 103532095 A CN103532095 A CN 103532095A
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Abstract
The present invention discloses a novel energy-saving electric load limiter which comprises the following components: a stabilized power supply circuit, an overcurrent detecting circuit and a relay control circuit. The overcurrent detecting circuit comprises a second diode, a third diode, a circuit transformer, a third capacitor, a fourth capacitor and a potentiometer. The relay control circuit comprises a time-base integrated circuit, a relay, a first light emitting diode, a second light emitting diode, a first diode, a fourth capacitor, a fifth capacitor, a first resistor, a second resistor and a third resistor. Through adopting the time-base integrated circuit in the circuit of the electric load limiter, the circuit of the electric load limiter is greatly simplified, and simultaneously power consumption is reduced, thereby reducing use cost and production cost. The novel energy-saving electric load limiter further has the advantages of high control precision, high stability, etc.
Description
Technical field
The present invention relates to a kind of power load limiter, particularly relate to a kind of novel energy-conserving power load limiter.
Background technology
Along with improving constantly of people's living standard, various electrical appliances have become indispensable part in our life.But the improper electrical appliance that makes, particularly high-power electric appliance are very easily accidents caused.According to authoritative department statistics, the annual fire more than half of China is all due to improper electricity consumption.Especially such as intensive places of some personnel such as dormitories, be also the region that makes electrical appliance comparatively concentrated simultaneously, careless slightly will breeding disaster.Power load limiter has automatic electric limiting and controls function, can normal power supply during lower than power-limiting in bearing power (user's electric power), when bearing power surpasses power limitation, can cut off rapidly user's supply line; Until user's bearing power, be down to power-limiting when following, can automatically recover customer power supply again.The circuit of existing power load limiter is comparatively complicated, and electric energy loss is large.
Summary of the invention
The object of the invention is to provide in order to address the above problem a kind of good energy-conserving effect, low cost of manufacture, the simple novel energy-conserving power load of circuit limiter.
The present invention is achieved by the following technical solutions:
A kind of novel energy-conserving power load limiter, comprise voltage-stabilized power supply circuit, overcurrent sensing circuit and control relay circuit, described overcurrent sensing circuit comprises the second diode, the 3rd diode, circuit instrument transformer, the 3rd electric capacity, the 4th electric capacity and potentiometer, the first winding of described circuit instrument transformer is connected with AC power, the first end of the second winding of described circuit instrument transformer is connected with the positive pole of described the second diode, the negative pole of described the second diode is connected with described the 3rd first end of electric capacity and the first end of described potentiometer respectively, the second end of described the 3rd electric capacity respectively with the second end of the second winding of described circuit instrument transformer, the second end of described potentiometer is connected with the first end of described the 4th electric capacity, the second end of described the 4th electric capacity is connected with the negative pole of described the 3rd diode with described control relay circuit respectively, described the 3rd positive pole of diode and the sliding end of described potentiometer are connected.
As a further improvement on the present invention, described control relay circuit comprises time-base integrated circuit, relay, the first light-emitting diode, the second light-emitting diode, the first diode, the 4th electric capacity, the 5th electric capacity, the first resistance, the second resistance and the 3rd resistance, the first end of described the 3rd resistance is connected with 6 pin with the second end of described the 4th electric capacity and 2 pin of described time-base integrated circuit respectively, the second end of described the 3rd resistance respectively with 1 pin of described time-base integrated circuit, the first end of the 5th electric capacity, the first end of the second resistance, ground connection after the positive pole of the first end of described relay and described the first diode is connected, the second end of described the 5th electric capacity is connected with 5 pin of described time-base integrated circuit, the second end of described the second resistance is connected with the negative pole of described the second light-emitting diode, the positive pole of described the second light-emitting diode respectively with 3 pin of described time-base integrated circuit, the second end of relay, the negative pole of the first light-emitting diode is connected with the negative pole of the first diode, and the positive pole of described the first light-emitting diode is connected with the first end of described the first resistance, and the second end of described the second resistance is connected with 8 pin with 4 pin of described time-base integrated circuit respectively.
When bearing power is during lower than the power limitation of this circuit, the 4th electric capacity both end voltage is lower than 4V, and in time-base integrated circuit, circuit is in stable state, its 3 pin output high level, relay power adhesive, its make contact is connected the power supply of load, simultaneously the second lumination of light emitting diode.When bearing power surpasses power limitation, and make the 4th electric capacity both end voltage higher than 8V, the upset of the monostable flipflop of time-base integrated circuit inside, is transformed to temporary stable state by stable state, and its 3 pin is transformed to low level by high level.Relay electric-loss is in release condition, and its make contact is cut off the power supply of load, and now, the first light-emitting diode is lighted, and the second light-emitting diode extinguishes.
The invention has the beneficial effects as follows:
By adopting time-base integrated circuit in the circuit at electric loading limiter, greatly simplified the circuit of power load limiter, also reduced power consumption simultaneously, reduced use cost and production cost.The present invention also has control precision height and stability advantages of higher.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of novel energy-conserving power load limiter of the present invention.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail:
As shown in Figure 1, described novel energy-conserving power load limiter, comprises voltage-stabilized power supply circuit, overcurrent sensing circuit and control relay circuit, and described voltage-stabilized power supply circuit comprises rectifier bridge UR, the first capacitor C 1, the second capacitor C 2, voltage stabilizing didoe VD4.Described overcurrent sensing circuit comprises the second diode VD2, the 3rd diode VD3, circuit instrument transformer TA, the 3rd capacitor C 3, the 4th capacitor C 4 and potentiometer RP, the first winding of described circuit instrument transformer TA is connected with AC power, the first end of the second winding of described circuit instrument transformer TA is connected with the positive pole of described the second diode VD2, the negative pole of described the second diode VD2 is connected with the first end of described potentiometer RP with the first end of described the 3rd capacitor C 3 respectively, the second end of described the 3rd capacitor C 3 respectively with the second end of the second winding of described circuit instrument transformer TA, the second end of described potentiometer RP is connected with the first end of described the 4th capacitor C 4, the second end of described the 4th capacitor C 4 is connected with the negative pole of described the 3rd diode VD3 with described control relay circuit respectively, the positive pole of described the 3rd diode VD3 is connected with the sliding end of described potentiometer RP.
Described control relay circuit comprises time-base integrated circuit IC, relay K, the first LED 1, the second LED 2, the first diode VD1, the 4th capacitor C 4, the 5th capacitor C 5, the first resistance R 1, the second resistance R 2 and the 3rd resistance R 3, the first end of described the 3rd resistance R 3 is connected with 6 pin with the second end of described the 4th capacitor C 4 and 2 pin of described time-base integrated circuit IC respectively, the second end of described the 3rd resistance R 3 respectively with 1 pin of described time-base integrated circuit IC, the first end of the 5th capacitor C 5, the first end of the second resistance R 2, ground connection after the positive pole of the first end of described relay K and described the first diode VD1 is connected, the second end of described the 5th capacitor C 5 is connected with 5 pin of described time-base integrated circuit IC, the second end of described the second resistance R 2 is connected with the negative pole of described the second LED 2, the positive pole of described the second LED 2 respectively with 3 pin of described time-base integrated circuit IC, the second end of relay K, the negative pole of the first LED 1 is connected with the negative pole of the first diode VD1, the positive pole of described the first LED 1 is connected with the first end of described the first resistance R 1, and the second end of described the second resistance R 2 is connected with 8 pin with 4 pin of described time-base integrated circuit IC respectively.
When bearing power is during lower than the power limitation of this circuit, the 4th capacitor C 4 both end voltage are lower than 4V, and in time-base integrated circuit IC, circuit is in stable state, its 3 pin output high level, relay K energising adhesive, its make contact is connected the power supply of load, and the second LED 2 is luminous simultaneously.When bearing power surpasses power limitation, and make the 4th capacitor C 4 both end voltage higher than 8V, the upset of the monostable flipflop of time-base integrated circuit IC inside, is transformed to temporary stable state by stable state, and its 3 pin is transformed to low level by high level.Relay K dead electricity is in release condition, and its make contact is cut off the power supply of load, and now, the first LED 1 is lighted, and the second LED 2 extinguishes.
Claims (2)
1. a novel energy-conserving power load limiter, comprise voltage-stabilized power supply circuit, overcurrent sensing circuit and control relay circuit, it is characterized in that: described overcurrent sensing circuit comprises the second diode, the 3rd diode, circuit instrument transformer, the 3rd electric capacity, the 4th electric capacity and potentiometer, the first winding of described circuit instrument transformer is connected with AC power, the first end of the second winding of described circuit instrument transformer is connected with the positive pole of described the second diode, the negative pole of described the second diode is connected with described the 3rd first end of electric capacity and the first end of described potentiometer respectively, the second end of described the 3rd electric capacity respectively with the second end of the second winding of described circuit instrument transformer, the second end of described potentiometer is connected with the first end of described the 4th electric capacity, the second end of described the 4th electric capacity is connected with the negative pole of described the 3rd diode with described control relay circuit respectively, described the 3rd positive pole of diode and the sliding end of described potentiometer are connected.
2. novel energy-conserving power load limiter according to claim 1, is characterized in that: described control relay circuit comprises time-base integrated circuit, relay, the first light-emitting diode, the second light-emitting diode, the first diode, the 4th electric capacity, the 5th electric capacity, the first resistance, the second resistance and the 3rd resistance, the first end of described the 3rd resistance is connected with 6 pin with the second end of described the 4th electric capacity and 2 pin of described time-base integrated circuit respectively, the second end of described the 3rd resistance respectively with 1 pin of described time-base integrated circuit, the first end of the 5th electric capacity, the first end of the second resistance, ground connection after the positive pole of the first end of described relay and described the first diode is connected, the second end of described the 5th electric capacity is connected with 5 pin of described time-base integrated circuit, the second end of described the second resistance is connected with the negative pole of described the second light-emitting diode, the positive pole of described the second light-emitting diode respectively with 3 pin of described time-base integrated circuit, the second end of relay, the negative pole of the first light-emitting diode is connected with the negative pole of the first diode, and the positive pole of described the first light-emitting diode is connected with the first end of described the first resistance, and the second end of described the second resistance is connected with 8 pin with 4 pin of described time-base integrated circuit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210223405.2A CN103532095A (en) | 2012-07-02 | 2012-07-02 | Novel energy-saving electric load limiter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210223405.2A CN103532095A (en) | 2012-07-02 | 2012-07-02 | Novel energy-saving electric load limiter |
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| CN103532095A true CN103532095A (en) | 2014-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210223405.2A Pending CN103532095A (en) | 2012-07-02 | 2012-07-02 | Novel energy-saving electric load limiter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106505515A (en) * | 2016-11-18 | 2017-03-15 | 广西大学 | A kind of automatic control circuit of restriction students' dormitory electric power |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4065805A (en) * | 1975-04-16 | 1977-12-27 | Sprecher & Schuh Ag | Circuit arrangement in an electrical device operated with direct-current, especially in a timing relay |
| CN2036318U (en) * | 1988-07-26 | 1989-04-19 | 谢少献 | Electric quantitative loader for middle and small power |
| CN2285042Y (en) * | 1995-12-11 | 1998-06-24 | 周东发 | Around-the-clock automatic controller for high-power lights |
| CN201518410U (en) * | 2009-10-30 | 2010-06-30 | 柴军锋 | Automatic electricity-limiting controller |
| CN102427351A (en) * | 2011-12-05 | 2012-04-25 | 洪珍 | Overlong timer for 555 time base circuit |
| CN202749798U (en) * | 2012-07-02 | 2013-02-20 | 成都默一科技有限公司 | Novel energy saving electrical load limiter |
-
2012
- 2012-07-02 CN CN201210223405.2A patent/CN103532095A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4065805A (en) * | 1975-04-16 | 1977-12-27 | Sprecher & Schuh Ag | Circuit arrangement in an electrical device operated with direct-current, especially in a timing relay |
| CN2036318U (en) * | 1988-07-26 | 1989-04-19 | 谢少献 | Electric quantitative loader for middle and small power |
| CN2285042Y (en) * | 1995-12-11 | 1998-06-24 | 周东发 | Around-the-clock automatic controller for high-power lights |
| CN201518410U (en) * | 2009-10-30 | 2010-06-30 | 柴军锋 | Automatic electricity-limiting controller |
| CN102427351A (en) * | 2011-12-05 | 2012-04-25 | 洪珍 | Overlong timer for 555 time base circuit |
| CN202749798U (en) * | 2012-07-02 | 2013-02-20 | 成都默一科技有限公司 | Novel energy saving electrical load limiter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106505515A (en) * | 2016-11-18 | 2017-03-15 | 广西大学 | A kind of automatic control circuit of restriction students' dormitory electric power |
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Application publication date: 20140122 |