CN204830671U - Built -in circuit of energy -concerving and environment -protective refrigerator - Google Patents
Built -in circuit of energy -concerving and environment -protective refrigerator Download PDFInfo
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- CN204830671U CN204830671U CN201520477273.5U CN201520477273U CN204830671U CN 204830671 U CN204830671 U CN 204830671U CN 201520477273 U CN201520477273 U CN 201520477273U CN 204830671 U CN204830671 U CN 204830671U
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Abstract
The utility model discloses a built -in circuit of energy -concerving and environment -protective refrigerator, including transformer W, rectifier bridge T, chip IC1 and phototriode V1, the both ends of 220V alternating current are connected respectively at transformer W's primary winding N1's both ends, and rectifier bridge T's port 1 and rectifier bridge T's port 3, rectifier bridge T's 2 pins 1 of connecting electric capacity C1 and chip IC1 of port are connected respectively at transformer W's secondary N2's both ends. The utility model discloses the built -in circuit of refrigerator not only can send the chimes of doom and remind the user to close the refrigerator door after opening refrigerator door a period, use ordinary 220V line voltage power supply moreover, and circuit structure is simple simultaneously, components and parts are few, consequently has energy -concerving and environment -protective, simple manufacture, convenient handy advantage.
Description
Technical field
The utility model relates to a kind of timing circuit, the refrigerator built-in circuit of specifically a kind of energy-conserving and environment-protective.
Background technology
Refrigerator is one of modal household electrical appliance in daily life, it can carry out insurance and freezing to food, the storage time of food and extend, bring great convenience therefore to the life of people, but a lot of people forgot the situation of closing refrigerator door in daily life after running into and opening refrigerator, thus cause a large amount of waste of energy, and fresh-keeping food also can go bad, the refrigerator that the minority occurred in the market is reminded with closing the door is mostly expensive, and alarm set is powered battery, be unfavorable for energy-conserving and environment-protective.
Utility model content
The purpose of this utility model is the refrigerator built-in circuit providing a kind of energy-conserving and environment-protective, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A refrigerator built-in circuit for energy-conserving and environment-protective, comprises transformer W, rectifier bridge T, chip IC 1 and phototriode V1, the two ends of the armature winding N1 of described transformer W connect the two ends of 220V alternating current respectively, the two ends of the secondary windings N2 of transformer W connect the port one of rectifier bridge T and the port 3 of rectifier bridge T respectively, the port 2 of rectifier bridge T connects the pin 1 of electric capacity C1 and chip IC 1, the other end contact resistance R7 of electric capacity C1, electric capacity C3, electric capacity C5, electric capacity C6, electric capacity C8, the emitter stage of triode V2 and the port 4 of rectifier bridge T, pin 2 ground connection of chip IC 1, the pin 3 contact resistance R2 of chip IC 1, resistance R5, the negative electrode of diode D1, the colelctor electrode of phototriode V1, the stiff end of potentiometer RP1, the pin 4 of chip IC 2, the pin 8 of chip IC 2, the pin 4 of chip IC 3, the pin 8 of chip IC 3, the pin 4 of chip IC 4 and the pin 8 of chip IC 4, the anode contact resistance R1 of diode D1, electric capacity C2, the pin 2 of chip IC 2, the pin 6 of chip IC 2, the other end of resistance R1 connects the sliding end of potentiometer RP1 and another stiff end of potentiometer RP1, the colelctor electrode of other end connecting triode V2 of electric capacity C2 and the pin 1 of chip IC 2, the other end of base stage contact resistance R7 of triode V2 and the emitter stage of phototriode V2, the pin 5 of chip IC 2 connects the other end of electric capacity C3, and the pin 3 of chip IC 2 connects electric capacity C4, electric capacity C7, loudspeaker B, the pin 1 of chip IC 3 and the pin 1 of chip IC 4, the other end of the pin 7 contact resistance R2 of chip IC 3 and the other end of resistance R3, resistance R3 connect the other end of electric capacity C4, the other end of electric capacity C5, the pin 2 of chip IC 3 and the pin 6 of chip IC 3, the pin 5 of chip IC 3 connects the other end of electric capacity C6, the pin 3 contact resistance R4 of chip IC 3, the other end of the other end contact resistance R5 of resistance R4, the pin 7 of resistance R6 and chip IC 3, the other end of resistance R6 connects the other end of electric capacity C7, the pin 2 of chip IC 4 and the pin 6 of chip IC 4, the pin 5 of chip IC 4 connects the other end of electric capacity C6, and the pin 3 of chip IC 4 connects electric capacity C9, and the other end of electric capacity C9 connects the other end of loudspeaker B.
As preferred version of the present utility model: the model of described chip IC 1 is LM7809, and the model of chip IC 2, chip IC 3 and chip IC 4 is NE555.
Compared with prior art, the beneficial effects of the utility model are: the utility model refrigerator built-in circuit can not only send chimes of doom and remind user's closing refrigerator door after unlatching refrigerator doors a period of time, and use common 220V line voltage to power, circuit structure is simple simultaneously, components and parts are few, therefore has energy-conserving and environment-protective, makes simply, facilitates handy advantage.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the refrigerator built-in circuit of energy-conserving and environment-protective.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only 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.
Refer to Fig. 1, a kind of refrigerator built-in circuit of energy-conserving and environment-protective, comprises transformer W, rectifier bridge T, chip IC 1 and phototriode V1, the two ends of the armature winding N1 of described transformer W connect the two ends of 220V alternating current respectively, the two ends of the secondary windings N2 of transformer W connect the port one of rectifier bridge T and the port 3 of rectifier bridge T respectively, the port 2 of rectifier bridge T connects the pin 1 of electric capacity C1 and chip IC 1, the other end contact resistance R7 of electric capacity C1, electric capacity C3, electric capacity C5, electric capacity C6, electric capacity C8, the emitter stage of triode V2 and the port 4 of rectifier bridge T, pin 2 ground connection of chip IC 1, the pin 3 contact resistance R2 of chip IC 1, resistance R5, the negative electrode of diode D1, the colelctor electrode of phototriode V1, the stiff end of potentiometer RP1, the pin 4 of chip IC 2, the pin 8 of chip IC 2, the pin 4 of chip IC 3, the pin 8 of chip IC 3, the pin 4 of chip IC 4 and the pin 8 of chip IC 4, the anode contact resistance R1 of diode D1, electric capacity C2, the pin 2 of chip IC 2, the pin 6 of chip IC 2, the other end of resistance R1 connects the sliding end of potentiometer RP1 and another stiff end of potentiometer RP1, the colelctor electrode of other end connecting triode V2 of electric capacity C2 and the pin 1 of chip IC 2, the other end of base stage contact resistance R7 of triode V2 and the emitter stage of phototriode V2, the pin 5 of chip IC 2 connects the other end of electric capacity C3, and the pin 3 of chip IC 2 connects electric capacity C4, electric capacity C7, loudspeaker B, the pin 1 of chip IC 3 and the pin 1 of chip IC 4, the other end of the pin 7 contact resistance R2 of chip IC 3 and the other end of resistance R3, resistance R3 connect the other end of electric capacity C4, the other end of electric capacity C5, the pin 2 of chip IC 3 and the pin 6 of chip IC 3, the pin 5 of chip IC 3 connects the other end of electric capacity C6, the pin 3 contact resistance R4 of chip IC 3, the other end of the other end contact resistance R5 of resistance R4, the pin 7 of resistance R6 and chip IC 3, the other end of resistance R6 connects the other end of electric capacity C7, the pin 2 of chip IC 4 and the pin 6 of chip IC 4, the pin 5 of chip IC 4 connects the other end of electric capacity C6, and the pin 3 of chip IC 4 connects electric capacity C9, and the other end of electric capacity C9 connects the other end of loudspeaker B.
The model of chip IC 1 is LM7809, and the model of chip IC 2, chip IC 3 and chip IC 4 is NE555.
Operation principle of the present utility model is: circuit is primarily of compositions such as the monostable flipflop IC1 formed for core with time base circuit 555, astable multivibrators (IC2, IC3).When refrigerator opens the door or Men Wei fastens, the illuminating lamp in refrigerator will be lighted, and phototriode V1 is because of the triggering and conducting by illumination, and the corresponding V2 saturation conduction that makes, so the 1 pin current potential of IC1 is close to earth potential.Again because electric capacity C2 two ends starting voltage is 0, thus make 2 pin of IC1 and 6 pin be low level, monostable flipflop exports high level from 3 pin of IC1.1 pin of corresponding IC2, IC3 is high level, thus makes IC2, IC3 all be in cut-off state.Meanwhile, capacitor C2 charges, after C2 is full of electricity, 3 pin of IC1 and the current potential of 6 pin are greater than 1/3Vcc, and 3 pin of IC1 become low level, thus make IC2, IC3 start normal work, loudspeaker B sends chimes of doom, and circuit can not only send chimes of doom and remind user's closing refrigerator door after unlatching refrigerator doors a period of time, and uses common 220V line voltage to power, circuit structure is simple simultaneously, components and parts are few, therefore has energy-conserving and environment-protective, makes simply, facilitates handy advantage.
Claims (2)
1. a refrigerator built-in circuit for energy-conserving and environment-protective, comprises transformer W, rectifier bridge T, chip IC 1 and phototriode V1, it is characterized in that, the two ends of the armature winding N1 of described transformer W connect the two ends of 220V alternating current respectively, the two ends of the secondary windings N2 of transformer W connect the port one of rectifier bridge T and the port 3 of rectifier bridge T respectively, the port 2 of rectifier bridge T connects the pin 1 of electric capacity C1 and chip IC 1, the other end contact resistance R7 of electric capacity C1, electric capacity C3, electric capacity C5, electric capacity C6, electric capacity C8, the emitter stage of triode V2 and the port 4 of rectifier bridge T, pin 2 ground connection of chip IC 1, the pin 3 contact resistance R2 of chip IC 1, resistance R5, the negative electrode of diode D1, the colelctor electrode of phototriode V1, the stiff end of potentiometer RP1, the pin 4 of chip IC 2, the pin 8 of chip IC 2, the pin 4 of chip IC 3, the pin 8 of chip IC 3, the pin 4 of chip IC 4 and the pin 8 of chip IC 4, the anode contact resistance R1 of diode D1, electric capacity C2, the pin 2 of chip IC 2, the pin 6 of chip IC 2, the other end of resistance R1 connects the sliding end of potentiometer RP1 and another stiff end of potentiometer RP1, the colelctor electrode of other end connecting triode V2 of electric capacity C2 and the pin 1 of chip IC 2, the other end of base stage contact resistance R7 of triode V2 and the emitter stage of phototriode V2, the pin 5 of chip IC 2 connects the other end of electric capacity C3, and the pin 3 of chip IC 2 connects electric capacity C4, electric capacity C7, loudspeaker B, the pin 1 of chip IC 3 and the pin 1 of chip IC 4, the other end of the pin 7 contact resistance R2 of chip IC 3 and the other end of resistance R3, resistance R3 connect the other end of electric capacity C4, the other end of electric capacity C5, the pin 2 of chip IC 3 and the pin 6 of chip IC 3, the pin 5 of chip IC 3 connects the other end of electric capacity C6, the pin 3 contact resistance R4 of chip IC 3, the other end of the other end contact resistance R5 of resistance R4, the pin 7 of resistance R6 and chip IC 3, the other end of resistance R6 connects the other end of electric capacity C7, the pin 2 of chip IC 4 and the pin 6 of chip IC 4, the pin 5 of chip IC 4 connects the other end of electric capacity C6, and the pin 3 of chip IC 4 connects electric capacity C9, and the other end of electric capacity C9 connects the other end of loudspeaker B.
2. the refrigerator built-in circuit of a kind of energy-conserving and environment-protective according to claim 1, is characterized in that, the model of described chip IC 1 is LM7809, and the model of chip IC 2, chip IC 3 and chip IC 4 is NE555.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520477273.5U CN204830671U (en) | 2015-07-06 | 2015-07-06 | Built -in circuit of energy -concerving and environment -protective refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520477273.5U CN204830671U (en) | 2015-07-06 | 2015-07-06 | Built -in circuit of energy -concerving and environment -protective refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204830671U true CN204830671U (en) | 2015-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520477273.5U Expired - Fee Related CN204830671U (en) | 2015-07-06 | 2015-07-06 | Built -in circuit of energy -concerving and environment -protective refrigerator |
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| Country | Link |
|---|---|
| CN (1) | CN204830671U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109949552A (en) * | 2019-03-19 | 2019-06-28 | 周芸 | Refrigerator forgets shutdown voice reminder |
| CN110260589A (en) * | 2019-06-24 | 2019-09-20 | 黄月华 | Refrigerator forgets delay alarm set of closing the door |
-
2015
- 2015-07-06 CN CN201520477273.5U patent/CN204830671U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109949552A (en) * | 2019-03-19 | 2019-06-28 | 周芸 | Refrigerator forgets shutdown voice reminder |
| CN110260589A (en) * | 2019-06-24 | 2019-09-20 | 黄月华 | Refrigerator forgets delay alarm set of closing the door |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20160706 |