CN202749798U - Novel energy saving electrical load limiter - Google Patents
Novel energy saving electrical load limiter Download PDFInfo
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- CN202749798U CN202749798U CN 201220314320 CN201220314320U CN202749798U CN 202749798 U CN202749798 U CN 202749798U CN 201220314320 CN201220314320 CN 201220314320 CN 201220314320 U CN201220314320 U CN 201220314320U CN 202749798 U CN202749798 U CN 202749798U
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Abstract
The utility model discloses a novel energy saving electrical load limiter comprising a stabilized power supply circuit, an overcurrent detection circuit and a relay control circuit, wherein the overcurrent detection circuit comprises a second diode, a third diode, a circuit mutual inductor, a third capacitor, a fourth capacitor and a potentiometer; and 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, the fourth capacitor, a fifth capacitor, a first resistor, a second resistor and a third resistor. By using the time-base integrated circuit in the circuit of the electrical load limiter, the novel energy saving electrical load limiter significantly simplifies the circuit of the electrical load limiter and reduces the power consumption at the same time, thus reducing the use cost and the production cost. The novel energy saving electrical load limiter also has the advantages of high control precision and high stability.
Description
Technical field
The utility model relates to a kind of power load limiter, particularly relates 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 all is due to the improper electricity consumption.Especially such as intensive places of some personnel such as dormitories, also be simultaneously the zone that electrical appliance is comparatively concentrated, careless slightly will breeding disaster.The power load limiter has automatic electric limiting control function, namely can normal power supply when being 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; The bearing power for the treatment of the user is 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 purpose of this utility model is that a kind of good energy-conserving effect, low cost of manufacture, the simple novel energy-conserving power load of circuit limiter are provided in order to address the above problem.
The utility model is achieved through 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, the 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 respectively with the first end of described the 3rd electric capacity be connected the first end of potentiometer and be connected, 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 be connected the first end of the 4th electric capacity and connect, the second end of described the 4th electric capacity respectively with described control relay circuit be connected the negative pole of the 3rd diode and be connected, the positive pole of described the 3rd diode is connected with the sliding end of described potentiometer.
As further improvement of the utility model be, 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 respectively with the second end of described the 4th electric capacity be connected time-base integrated circuit 2 pin with are connected pin and are connected, 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, the first end of described relay be connected the positive pole of the first diode connect after ground connection, 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 be connected the negative pole of diode and connect, the positive pole of described the first light-emitting diode is connected with the first end of described the first resistance, the second end of described the second resistance respectively with 4 pin of described time-base integrated circuit with are connected pin and are connected.
When bearing power was lower than the power limitation of this circuit, then the 4th electric capacity both end voltage was lower than 4V, and circuit is in stable state in the time-base integrated circuit, its 3 pin output high level, the 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 be higher than 8V, the monostable flipflop upset 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 at this moment, the first light-emitting diode is lighted, and the second light-emitting diode extinguishes.
The beneficial effects of the utility model are:
By in the circuit of electric loading limiter, adopting time-base integrated circuit, greatly simplified the circuit of power load limiter, also reduced power consumption simultaneously, reduced use cost and production cost.The utility model also has the high and stable advantages of higher of control precision.
Description of drawings
Fig. 1 is the circuit diagram of novel energy-conserving power load limiter described in the utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and the specific embodiments:
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 respectively with the first end of described the 3rd capacitor C 3 be connected the first end of potentiometer RP and be connected, 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 be connected the first end of the 4th capacitor C 4 and connect, the second end of described the 4th capacitor C 4 respectively with described control relay circuit be connected the negative pole of the 3rd diode VD3 and be connected, 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 respectively with the second end of described the 4th capacitor C 4 be connected time-base integrated circuit IC 2 pin with are connected pin and are connected, 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, the first end of described relay K be connected the positive pole of the first diode VD1 connect after ground connection, 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 be connected the negative pole of diode VD1 and connect, the positive pole of described the first LED 1 is connected with the first end of described the first resistance R 1, the second end of described the second resistance R 2 respectively with 4 pin of described time-base integrated circuit IC with are connected pin and are connected.
When bearing power was lower than the power limitation of this circuit, then the 4th capacitor C 4 both end voltage were lower than 4V, and circuit is in stable state in the time-base integrated circuit IC, 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 be higher than 8V, the monostable flipflop upset 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.The relay K dead electricity is in release condition, and its make contact is cut off the power supply of load, and at this moment, the first LED 1 is lighted, and the second LED 2 extinguishes.
Claims (2)
1. 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, the 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 respectively with the first end of described the 3rd electric capacity be connected the first end of potentiometer and be connected, 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 be connected the first end of the 4th electric capacity and connect, the second end of described the 4th electric capacity respectively with described control relay circuit be connected the negative pole of the 3rd diode and be connected, the positive pole of described the 3rd diode is connected with the sliding end of described potentiometer.
2. novel energy-conserving power load limiter according to claim 1, it 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 respectively with the second end of described the 4th electric capacity be connected time-base integrated circuit 2 pin with are connected pin and are connected, 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, the first end of described relay be connected the positive pole of the first diode connect after ground connection, 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 be connected the negative pole of diode and connect, the positive pole of described the first light-emitting diode is connected with the first end of described the first resistance, the second end of described the second resistance respectively with 4 pin of described time-base integrated circuit with are connected pin and are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220314320 CN202749798U (en) | 2012-07-02 | 2012-07-02 | Novel energy saving electrical load limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220314320 CN202749798U (en) | 2012-07-02 | 2012-07-02 | Novel energy saving electrical load limiter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202749798U true CN202749798U (en) | 2013-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220314320 Expired - Fee Related CN202749798U (en) | 2012-07-02 | 2012-07-02 | Novel energy saving electrical load limiter |
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| CN (1) | CN202749798U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532095A (en) * | 2012-07-02 | 2014-01-22 | 成都默一科技有限公司 | Novel energy-saving electric load limiter |
-
2012
- 2012-07-02 CN CN 201220314320 patent/CN202749798U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532095A (en) * | 2012-07-02 | 2014-01-22 | 成都默一科技有限公司 | Novel energy-saving electric load limiter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20130702 |