CN204790456U - A on -off control device for family's power management - Google Patents
A on -off control device for family's power management Download PDFInfo
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- CN204790456U CN204790456U CN201520561490.2U CN201520561490U CN204790456U CN 204790456 U CN204790456 U CN 204790456U CN 201520561490 U CN201520561490 U CN 201520561490U CN 204790456 U CN204790456 U CN 204790456U
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Abstract
The utility model belongs to the technical field of domestic power management technique and specifically relates to an on -off control device for family's power management is related to, including relay, current detection chip, voltage comparater and data trigger, the external alternating current power supply of relay, the current detection chip passes through voltage comparater and is connected with the CLK end electricity of data trigger: the output and the relay electricity of data trigger are connected, the current detection chip is arranged in detection circuitry's electric current to erupt simultaneously delivering to voltage comparater, and voltage comparater is used for the control data trigger to the state of control relay. The utility model provides a pair of an on -off control device for family's power management, the electric current of real -time supervision consumer, when equipment had the switch demand, the electric current that the control relay is flowing through carried out switch work for the zero hour, and protect relay is not hurt the contact, has not only prolonged the life of relay greatly, has strengthened the stability of relay control power consumption moreover.
Description
Technical field
The utility model relates to domestic power supply administrative skill field, especially relates to a kind of switch controlling device for household electrical source management.
Background technology
Smart Home, along with the progress of science and technology, progressively enters into common people family at present, and as the most important device of Smart Home, the reliable and durability of intelligent electric power management socket just seems particularly important.In Smart Home, realized the management of household electrical source by the opening and closing controlling power supply, can not only intelligentized control method be realized, the consumption of the energy can also be effectively reduced.
The consumer of family has the plurality of devices such as light fixture, TV, air-conditioning, refrigerator, washing machine, micro-wave oven, electric cooker, power is also not of uniform size, nearly more than 10 amperes that the electric current of equipment is large, little of 1 ampere, and what electric equipment itself had presents perception, what have presents capacitive, and what have presents purely resistive, so be more satisfactory with power source for relay control switch; But relay itself generally adopts mechanical metal contact to carry out switch opens and cut out, when the electric current flowing through contact is larger, disconnect in a flash in contact, perception due to electric equipment causes the inertia effect of electric current, make to produce high pressure instantaneously between contact, and puncture air, produce spark phenomenon.This spark phenomenon is harmful to relay contact very much, not only greatly shortens the serviceable life of relay, also produces the instability of opertaing device, sometimes just directly damages relay, causes relay failure.In order to avoid this situation, often adopt by the large relay of electric current, but the volume of relay also increases further, cost also increases substantially, under the background that present all electronic products are all microminiaturized, the increase of volume reduces the application scenario that relay manages for household electrical source, and the rise of price improves consumption threshold especially, has contained the universal of intelligent electric power management switch and has promoted.
Utility model content
The purpose of this utility model is to provide a kind of switch controlling device for household electrical source management, to solve the technical matters that spark phenomenon easily occurs the small size relay existed in prior art.
A kind of switch controlling device for household electrical source management that the utility model provides, comprises relay, current detecting chip, voltage comparator and data trigger; Relay external AC power supply; Current detecting chip to be held with the CLK of data trigger by voltage comparator and is electrically connected; The output terminal of data trigger is electrically connected with relay; Current detecting chip is used for the electric current in testing circuit and is sent to voltage comparator, and voltage comparator is used for control data trigger, with the state of pilot relay.
Further, the switch controlling device for household electrical source management also comprises triode, and one end of triode is electrically connected with relay, and the other end is electrically connected with the output terminal of data trigger.
Further, the RS end of data trigger is electrically connected with relay; When relay is in non-pull state, data trigger is used for pilot relay adhesive, to connect circuit.
A kind of switch controlling device for household electrical source management that the utility model provides; the electric current of Real-Time Monitoring consumer; when equipment has switching requirements; pilot relay carries out switch when the electric current flow through is zero; protective relay contact preserves from; not only substantially prolongs the serviceable life of relay, and enhance the stability of Control electricity consumption.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The schematic diagram of the switch controlling device for household electrical source management that Fig. 1 provides for the utility model embodiment;
Reference numeral:
1-relay; 2-current detecting chip; 3-voltage comparator; 4-data trigger; 5-triode.
Embodiment
Be clearly and completely described the technical solution of the utility model below in conjunction with accompanying drawing, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
The schematic diagram of the switch controlling device for household electrical source management that Fig. 1 provides for the utility model embodiment; As shown in Figure 1, a kind of switch controlling device for household electrical source management that the utility model provides, comprises relay 1, current detecting chip 2, voltage comparator 3 and data trigger 4; Relay 1 external AC power supply; Current detecting chip 2 is held with the CLK of data trigger 4 by voltage comparator 3 and is electrically connected; The output terminal of data trigger 4 is electrically connected with relay 1; Current detecting chip 2 is for the electric current in testing circuit and be sent to voltage comparator 2, voltage comparator 2 for control data trigger 3, with the state of pilot relay 1.
Wherein, the model that current detecting chip 2 adopts can be ACS712, and the model that voltage comparator 3 adopts can be LM393, and the model that data trigger adopts can be 74LS74.
On the basis of above-described embodiment, this switch controlling device being used for household electrical source management also comprises triode 5, one end of triode 5 is electrically connected with relay 1, the other end is electrically connected with the output terminal of data trigger 4, the signal that triode 5 exports for amplification data trigger 4, the energy of output signal obtains reinforcement, so that the state of pilot relay 1 better.
On the basis of above-described embodiment, the RS end of data trigger 4 is electrically connected with relay 1.
The principle of work of the present embodiment is: when relay 1 is in attracting state, namely electric equipment power supply is in running order, current detecting chip 2 can detect the AC signal that electric equipment flows through, and this current signal is converted to a voltage signal carries out exporting and be sent to voltage comparator 3; Voltage comparator 3 is compared by the voltage signal exported current detecting chip 2; output the CLK end input of logic clock signal from data trigger 4 that a frequency is 50Hz; this rising edge clock signal and negative edge are all the moment of current over-zero; so with the clock of this clock as data trigger 4; then the output transform of data trigger 4 is exactly the conversion at current zero-crossing point; so just can be implemented in when zero current flows through load and close electric equipment, protective relay contact is the damage of striking sparks by impacting with high pressure not.As shown in Figure 1, D end is cut-off signals end, and RS end is opening signal end.D=0, RS=0, like this when clock trigger data trigger 4, trigger 4 just exports the logic zero signal that D holds at current zero-crossing point at output terminal, relay contact is disconnected.
When relay 1 is in non-pull state, namely electric equipment power supply is in closed condition, at this moment current detecting chip 2 can't detect current signal, voltage comparator 3 does not just produce the clock signal required for data trigger 4 yet, can not allow relay 1 adhesive by control " D end ".Therefore the adhesive utilizing the RS of data trigger 4 end to carry out relay controls, and when RS=1, does not need clock to be 1 with regard to making the output of data trigger 4, thus attracting electric relay, start to power to electric equipment.
By with upper type; a kind of switch controlling device for household electrical source management that the utility model provides; simple to operate; with low cost; be easy to realize; the volume that need not increase relay also can be without prejudice by protective relay, is specially adapted to the application of Smart Home power management gauge tap, Smart Home switch control rule is become more and more durable reliably.
Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (3)
1., for a switch controlling device for household electrical source management, it is characterized in that, comprise relay, current detecting chip, voltage comparator and data trigger;
Described relay external AC power supply; Described current detecting chip is held with the CLK of described data trigger by described voltage comparator and is electrically connected; The output terminal of described data trigger is electrically connected with described relay;
Described current detecting chip is used for the electric current in testing circuit and is sent to described voltage comparator, described voltage comparator for controlling described data trigger, to control the state of described relay.
2. the switch controlling device for household electrical source management according to claim 1, it is characterized in that, also comprise triode, one end of described triode is electrically connected with described relay, and the other end is electrically connected with the output terminal of described data trigger.
3. the switch controlling device for household electrical source management according to claim 1, is characterized in that, the RS end of described data trigger is electrically connected with described relay; When described relay is in non-pull state, described data trigger for controlling described relay adhesive, to connect circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520561490.2U CN204790456U (en) | 2015-07-29 | 2015-07-29 | A on -off control device for family's power management |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520561490.2U CN204790456U (en) | 2015-07-29 | 2015-07-29 | A on -off control device for family's power management |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204790456U true CN204790456U (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520561490.2U Active CN204790456U (en) | 2015-07-29 | 2015-07-29 | A on -off control device for family's power management |
Country Status (1)
| Country | Link |
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| CN (1) | CN204790456U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107570842A (en) * | 2017-09-08 | 2018-01-12 | 盐城鼎力达焊接科技有限公司 | A kind of welding machine control circuit system |
| CN109950881A (en) * | 2019-03-29 | 2019-06-28 | 成都信息工程大学 | A kind of embeddable type equipment preliminary examination protection circuit |
-
2015
- 2015-07-29 CN CN201520561490.2U patent/CN204790456U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107570842A (en) * | 2017-09-08 | 2018-01-12 | 盐城鼎力达焊接科技有限公司 | A kind of welding machine control circuit system |
| CN109950881A (en) * | 2019-03-29 | 2019-06-28 | 成都信息工程大学 | A kind of embeddable type equipment preliminary examination protection circuit |
| CN109950881B (en) * | 2019-03-29 | 2024-04-09 | 成都信息工程大学 | Embedded equipment pre-detection protection circuit |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |