CN203908199U - Refrigerator control panel capable of realizing intelligent detection - Google Patents
Refrigerator control panel capable of realizing intelligent detection Download PDFInfo
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- CN203908199U CN203908199U CN201420343890.1U CN201420343890U CN203908199U CN 203908199 U CN203908199 U CN 203908199U CN 201420343890 U CN201420343890 U CN 201420343890U CN 203908199 U CN203908199 U CN 203908199U
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Abstract
The utility model discloses a refrigerator control panel capable of realizing intelligent detection. The control panel comprises a power supply unit, a light-sensitive unit, a delay and alarm unit and a motor protection unit, wherein the light-sensitive unit comprises a light-sensitive element; the power supply unit is coupled with an input end of the light-sensitive element; the delay and alarm unit comprises a delay unit and an alarm unit, an input end of the delay unit is coupled with an output end of the light-sensitive element, and the alarm unit is coupled with an output end of the delay unit; the motor protection unit comprises a relay coupled with the output end of the delay unit, and a normally-closed contact of the relay is coupled between a motor and a power supply coupled with the motor. The control panel has the advantages that after a refrigerator makes an alarm sound, if a refrigerator door is still not closed, the refrigerator can cut off the motor automatically, so that the motor can be protected effectively and prevented from working with loads for a long time, and the service life of the motor of the refrigerator can be effectively prolonged.
Description
Technical field
The utility model relates to a kind of refrigerator technical field, and more particularly, it relates to a kind of Intelligent Measurement refrigerator control panel.
Background technology
Along with socioeconomic development, the household electrical appliance such as refrigerator have also entered common people house.Although, refrigerator has brought many convenience, but many worries are also brought, for example, in the time that refrigerator doors is not fastened, not only cause food spoilage, waste electricity, and the lasting refrigeration of refrigerator can cause refrigerator electrical machinery life to reduce or due to motor overload work, cause motor to burn out.
At present, application number on market is 201110328956.0 refrigerator door-closing reminding device, it comprises power circuit, photosensitive circuit, delay circuit, signal amplification circuit, warning circuit, although can be at refrigerator not at closing time, sense the illuminating lamp of refrigerator by photosensitive circuit, make warning circuit conducting, sending chimes of doom carrys out reminding user refrigerator doors and does not fasten, weak point is: in the time that refrigerator sends chimes of doom, owner has gone out or has not heard, can cause the long-time loaded work piece of refrigerator, cause refrigerator electrical machinery life reduce or due to motor overload work, cause motor to burn out.
Utility model content
The deficiency existing for prior art; the purpose of this utility model is to provide a kind of Intelligent Measurement refrigerator control panel; after refrigerator sends chimes of doom; or when no one's closing refrigerator door; refrigerator will disconnect motor automatically; can effectively protect motor, prevent that refrigerator motor is for a long time in loaded work piece, can effectively increase the electrical machinery life of refrigerator.
For achieving the above object, the utility model provides following technical scheme:
A kind of Intelligent Measurement refrigerator control panel,
Include power subsystem, photosensitive unit, delayed alarm unit, electric motor protecting unit,
Described photosensitive unit is provided with light-sensitive element, and the input of described power subsystem and light-sensitive element couples,
Described delayed alarm unit is provided with delay unit and alarm unit, and the input of described delay unit and the output of light-sensitive element couple, and the output of described warning power supply and delay unit couples,
Described motor protective circuit is provided with relay, and the output of described relay and delay unit couples, and the normally-closed contact of described relay is coupled between the power supply that motor and motor couple.
Adopt above-mentioned design; when refrigerator doors is opened; the light-sensitive element of photosensitive unit is connected power subsystem and delayed alarm unit; start working to delayed alarm unit, after delay unit time delay a period of time, output voltage makes alarm unit work; connect electric motor protecting unit simultaneously; make relay wherein obtain electric work, the normally closed switch of relay is disconnected, and then motor is quit work.
As setting of the present utility model, described power subsystem includes transformer and rectifier bridge, and the primary coil of described transformer is coupled with AC power, and secondary coil and the rectifier bridge of described transformer couple, and described rectifier bridge and light-sensitive element couple.
Adopt above-mentioned design, AC power is carried out to step-down, rectification supply delayed alarm unit, electric motor protecting cell operation, make full use of civil power, needn't be at external direct current power supply.
As setting of the present utility model, described light-sensitive element is photodiode.
Adopt above-mentioned design, photodiode is the semiconductor devices that optical signal is become to the signal of telecommunication, realizes cut-offfing of circuit, as the gauge tap of delayed alarm unit and electric motor protecting unit.
As setting of the present utility model; described delay unit comprises the first delay chip, NPN triode VT2 and the first protective resistance; the base stage that described the first delay chip pin 3 and the first protective resistance couple rear and NPN triode VT2 couples; the input of described NPN triode VT2 emitter stage and alarm unit couples; described alarm unit output head grounding, described alarm unit is buzzer.
Adopt above-mentioned design, by after utilizing delay chip to get to control refrigerator doors and opening one section time, then reports to the police and the function of electric motor protecting action, guarantee the utility model, can false alarm in user's normal operating.
Described electric motor protecting unit is provided with the second delay chip, NPN triode VT3, the second protective resistance, the pin 3 of described the second delay chip and the second protective resistance couple afterwards and NPN triode VT3 base stage couples, described electric motor protecting unit includes diode VD1 and relay, described diode VD1 anode and NPN triode VT3 colelctor electrode couple, described diode VD1 negative electrode and NPN triode VT2 emitter stage couple, described diode VD1 is in parallel with relay coil, described triode VT3 grounded emitter, the anode of described motor is succeeded connecting to neutral line after the normally closed switch of electrical equipment.
Adopt above-mentioned design, the utility model is opened after a period of time in refrigerator doors, carries out delayed alarm by delayed alarm circuit; and trigger motor protective circuit and start working; the second chip trigger, the now timely closed refrigerator of reminding user, reported to the police after a period of time; refrigerator doors does not have closure; the second delay chip time delay, relay obtains electric work, and the normally-closed contact of relay disconnects; cut off the work loop of motor, make refrigerator stop refrigeration.
Compared with prior art, the utility model has been realized refrigerator doors in the time not closing for a long time, reports to the police and protects motor, life-span when extending motor.
Brief description of the drawings
Fig. 1 is the circuit interconnect pattern of a kind of Intelligent Measurement refrigerator of the utility model control panel embodiment;
Fig. 2 is power subsystem and the sensing unit circuit diagram of a kind of Intelligent Measurement refrigerator of the utility model control panel embodiment;
Fig. 3 is the delayed alarm element circuit figure of a kind of Intelligent Measurement refrigerator of the utility model control panel embodiment;
Fig. 4 is the electric motor protecting element circuit figure of a kind of Intelligent Measurement refrigerator of the utility model control panel embodiment.
Reference numeral: 1, power subsystem; 2, photosensitive unit; 3, delayed alarm unit; 4, electric motor protecting unit.
Detailed description of the invention
Referring to figs. 1 through Fig. 4, a kind of Intelligent Measurement refrigerator of the utility model control panel embodiment is described further.
As shown in Figure 1, a kind of Intelligent Measurement refrigerator control panel,
Include power subsystem, photosensitive unit, delayed alarm unit, electric motor protecting unit,
Power subsystem to AC power carry out step-down, rectification is converted to dc source.
Photosensitive unit operating switch as a whole, in the time that the chamber door of refrigerator is performed fighting, accepts external light source, and photosensitive unit work is started working delayed alarm unit and switching on power of electric motor protecting unit.
Delayed alarm unit after photosensitive unit work, the work that switches on power, further, delay unit work, after time delay finishes, connects alarm unit and electric motor protecting unit.
Electric motor protecting unit switches on power, and makes motor stop refrigeration work.
As shown in Figure 2, power subsystem includes transformer and rectifier bridge, and the primary coil of transformer is coupled with AC power, and secondary coil and the rectifier bridge of transformer couple, and rectifier bridge and light-sensitive element couple.
Civil power enters transformer pressure-reducing, then couples with light-sensitive element after rectifier bridge rectification.
Light-sensitive element is photodiode VT1, and photodiode VT1 sun level couples with coupling resistance R 3 output rear and rectifier bridge, and negative electrode and delay circuit couple.
As shown in Figure 3; it is CD4060 that delay circuit is provided with the first delay chip IC1(model); the pin 7 of the first delay chip IC1 couples with the negative electrode of photodiode VT1; the base stage that the first delay chip pin 3 and the first protective resistance couple rear and NPN triode VT2 couples; the input of NPN triode VT2 emitter stage and alarm unit couples; alarm unit output head grounding, alarm unit is buzzer.
As shown in Figure 4, it is CD4060 that electric motor protecting unit is provided with the second delay chip IC2(model), NPN triode VT3, the second protective resistance, the pin 3 of the second delay chip and the second protective resistance couple afterwards and NPN triode VT3 base stage couples, electric motor protecting unit includes diode VD1 and relay K M, diode VD1 anode and NPN triode VT3 colelctor electrode couple, diode VD1 negative electrode and NPN triode VT2 emitter stage couple, the coils from parallel connection of coils of diode VD1 and relay K M, triode VT3 grounded emitter, the anode of motor is succeeded connecting to neutral line after the normally closed switch of electrical equipment KM.
The above is only preferred embodiment of the present utility model, and protection domain of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. an Intelligent Measurement refrigerator control panel,
It is characterized in that:
Include power subsystem, photosensitive unit, delayed alarm unit, electric motor protecting unit,
Described photosensitive unit is provided with light-sensitive element, and the input of described power subsystem and light-sensitive element couples,
Described delayed alarm unit is provided with delay unit and alarm unit, and the input of described delay unit and the output of light-sensitive element couple, and the output of described warning power supply and delay unit couples,
Described motor protective circuit is provided with relay, and the output of described relay and delay unit couples, and the normally-closed contact of described relay is coupled between the power supply that motor and motor couple.
2. a kind of Intelligent Measurement refrigerator control panel according to claim 1,
It is characterized in that:
Described power subsystem includes transformer and rectifier bridge, and the primary coil of described transformer is coupled with AC power, and secondary coil and the rectifier bridge of described transformer couple, and described rectifier bridge and light-sensitive element couple.
3. a kind of Intelligent Measurement refrigerator control panel according to claim 2,
It is characterized in that:
Described light-sensitive element is photodiode.
4. a kind of Intelligent Measurement refrigerator control panel according to claim 3,
It is characterized in that:
Described delay unit comprises the first delay chip, NPN triode VT2 and the first protective resistance; the base stage that described the first delay chip pin 3 and the first protective resistance couple rear and NPN triode VT2 couples; the input of described NPN triode VT2 emitter stage and alarm unit couples; described alarm unit output head grounding, described alarm unit is buzzer.
5. a kind of Intelligent Measurement refrigerator control panel according to claim 4,
It is characterized in that:
Described electric motor protecting unit is provided with the second delay chip, NPN triode VT3, the second protective resistance, the pin 3 of described the second delay chip and the second protective resistance couple afterwards and NPN triode VT3 base stage couples, described electric motor protecting unit includes diode VD1 and relay, described diode VD1 anode and NPN triode VT3 colelctor electrode couple, described diode VD1 negative electrode and NPN triode VT2 emitter stage couple, described diode VD1 is in parallel with relay coil, described triode VT3 grounded emitter, the anode of described motor is succeeded connecting to neutral line after the normally closed switch of electrical equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420343890.1U CN203908199U (en) | 2014-06-25 | 2014-06-25 | Refrigerator control panel capable of realizing intelligent detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420343890.1U CN203908199U (en) | 2014-06-25 | 2014-06-25 | Refrigerator control panel capable of realizing intelligent detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203908199U true CN203908199U (en) | 2014-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420343890.1U Expired - Fee Related CN203908199U (en) | 2014-06-25 | 2014-06-25 | Refrigerator control panel capable of realizing intelligent detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203908199U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107782006A (en) * | 2017-11-14 | 2018-03-09 | 珠海格力电器股份有限公司 | A kind of compressor refrigeration system and the water dispenser for being integrated with refrigerator |
| CN109428501A (en) * | 2017-08-30 | 2019-03-05 | 苏州长光华医生物医学工程有限公司 | Immunity analysis instrument power-supply system |
| CN109974390A (en) * | 2019-03-30 | 2019-07-05 | 周芸 | Refrigerator opens the door photosensitive control alarm set for a long time |
-
2014
- 2014-06-25 CN CN201420343890.1U patent/CN203908199U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109428501A (en) * | 2017-08-30 | 2019-03-05 | 苏州长光华医生物医学工程有限公司 | Immunity analysis instrument power-supply system |
| CN107782006A (en) * | 2017-11-14 | 2018-03-09 | 珠海格力电器股份有限公司 | A kind of compressor refrigeration system and the water dispenser for being integrated with refrigerator |
| CN107782006B (en) * | 2017-11-14 | 2024-03-29 | 珠海格力电器股份有限公司 | Compressor refrigerating system and water dispenser integrated with refrigerator |
| CN109974390A (en) * | 2019-03-30 | 2019-07-05 | 周芸 | Refrigerator opens the door photosensitive control alarm set for a long time |
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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 |
Granted publication date: 20141029 Termination date: 20180625 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |