CN2872229Y

CN2872229Y - Time-shared running refrigerator

Info

Publication number: CN2872229Y
Application number: CN 200520071308
Authority: CN
Inventors: 伍培云
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-05-08
Filing date: 2005-05-08
Publication date: 2007-02-21
Anticipated expiration: 2015-05-08

Abstract

The utility model relates to a refrigerator timing running device, belonging to a refrigerator manufacturing and modifying technology field. The device comprises a cooling storage device and a PLC control circuit. The outer shape of the cooling storage device is a shape like a Chinese character ''wang'', a mini fan is arranged on the one end, a cooling storage medium is filled inside, which is positioned inside the freezing compartment and cooling storage chamber. The PLC control circuit is used to set the refrigerator inter peak using time mainly by the relay connected with the compressor in series. When in the peak of electricity and the compressor of the refrigerator without electricity supplying, the door is opened door put in food, so as to start the refrigerator to provide enough cooling to keep the food. The device enables the refrigerator to use electricity by missing the peak and save 50%-70% electricity fee.

Description

A kind of device that makes the refrigerator time-division operation

Technical field:

The utility model relates to a kind of device that makes the refrigerator time-division operation, relates to the manufacturing of refrigerator or the repacking of refrigerator

Technical field.

Background technology:

Energy savings is the important strategic task that the whole nation from the leadership to the masses all will be carried out now, under the situation of current especially State Grid load in summer anxiety, a series of electricity consumption policies have been worked out, as " peak load shifting " policy, low ebb electricity with cheapness encourages the resident to use valley power more, use peak power less, support national worker, agricultural production.

Reform along with the electricity consumption system, the electricity price of a lot of city dweller's electricity consumptions has been carried out the tou power price mode, washing machine, electric heater, television set and some other electrical appliance all can artificially be set and use the valley power in night in each family, and refrigerator is to use the product for civilian use very widely, is the household electrical appliance of necessary 24 hours continuous service.According to investigations, the popularity rate of urban family refrigerator has been 103%, and family's use in refrigerator electric weight accounts for the 40%-60% of family's electricity charge expenditure, is the main consumer in the family, and it is all very great to country and family's meaning that it is implemented electricity consumption " peak load shifting ".

And conventional refrigerator has definite running time and compressor start/stop time ratio under certain loading condiction, just refrigerator is when normal operation, when being higher than, one of refrigerating chamber or freezer temperature set when requiring, the compressor refrigeration of will starting shooting, time there is not specific specific aim, can not move by different modes at the different time periods, especially summer, daytime, environment temperature was higher, and evening temperature is lower, and refrigerator is more much more than the heat radiation in night daytime, just cause daytime during peak of power consumption high frequent start, the phenomenon that starts less night, just the refrigerator of one family will be overpaied the expensive peak electricity charge, and the electricity charge when paying cheap paddy less.Even though tou power price arranged sometimes, refrigerator is not on the contrary than being that tou power price is overpaied the electricity charge.

Summary of the invention:

The technical problems to be solved in the utility model is can not cooperate at refrigerator the defective of tou power price system time-division operation, a kind of device that makes the refrigerator time-division operation is provided, can cooperate the time-division operation of setting freezer compressor with the tou power price system, reach the purpose of saving the electricity charge, also can satisfy the user the refrigerator specific (special) requirements of running time.

Technical problem of the present utility model solves by the following technical programs, repacks current refrigerator into time-division operation rfrigerator.Its technology has two partly to constitute regenerator and single chip machine controlling circuit.First partly is regenerator, and the contour structures of regenerator is " king " shape, and an end is equipped with mini-fan, at first regenerator is respectively charged into the refrigerating chamber and the refrigerating chamber of domestic refrigerator, regenerator is the solution that formulated is housed, refrigerating chamber be aqueous organopolysiloxane, refrigerating chamber be saline solution, because water is polar molecule, freeze and to expand, can destroy regenerator, therefore will add the depolarization compound, see the patent of invention of my application for details, application number is: 200410041072.7.Because the latent heat of phase change value of this solution from the liquid phase to the solid phase is very big, near 80 kcal/kg, be equivalent to 1 kilogram solution and can hold 0.093 degree, if refrigerator power consumption every day 0.65 degree, as long as then holding 0.325 degree electricity evening uses just enough to daytime, only as long as 3.49 kilograms of cold-storage liquid (proportion is greater than 1 kg/liter), then the volume summation of regenerator will be less than 3.5 liters (these be theoretical values), just can absorb enough colds preserves, for long-time having needed of release when out of service on compressor daytime, again since during phase transformation temperature make the refrigerating chamber of refrigerator and near (freezing point temperature of agent for storage of coldness illustrates) that refrigerating chamber can remain on constant agent for storage of coldness freezing point (or fusing point) temperature for a long time in the characteristics that freezing point (or fusing point) remains unchanged for a long time in the specific embodiment; Second partly is to have designed a kind of single chip machine controlling circuit, it mainly by following three partly circuit form: the 1. control circuit of freezer compressor time-division operation: by single-chip microcomputer 89c51 (14), DC relay (10), intrinsic temperature detect switch (TDS) (8), freezer compressor (9), the R of refrigerator ₁Voltage pull-up resistor, R ₅Current-limiting resistance, R ₂The discharge diode of divider resistance, DC relay coil and triode are formed.Single-chip Controlling mainly is to realize the time-division operation of freezer compressor by the DC relay (10) of connecting with compressor (9); make refrigerator at paddy electricity in the period; compressor moves for a long time; cold is stored in the agent for storage of coldness; by the time peak of power consumption is in the time period, and compressor is shut down for a long time, relies on the cold in the agent for storage of coldness to discharge at leisure; guaranteed that the indoor temperature of case in the scope that requires, reaches the purpose of the save power and the electricity charge.2. the fortune of the open and close of refrigerator doors and compressor, stop the signal circuit of signal input micro computer: by single-chip microcomputer 89c51 (14), auxiliary reclay (11), normally closed button (12), normally closed button (13), freezer compressor (9), R ₃Voltage pull-up resistor, R ₄The voltage pull-up resistor is formed.Normally closed button (12) is installed between the space at cold sotrage door and refrigerating chamber edge, be fixed on the refrigerating chamber edge, normally closed button (13) is installed between the space at door of refrigerator and refrigerating chamber edge, be fixed on the refrigerating chamber edge, when door closure state, switch is subjected to the compressing of doorframe, it is normally open, when opening, button is released, and just becomes normally off, auxiliary reclay (11) is in parallel with freezer compressor (9), the fortune of compressor, stop triggering auxiliary reclay (11) action, signal will be gathered by single-chip microcomputer, thereby guarantee that the food of putting into refrigerator can obtain fresh-keeping effectively.3. control the drive circuit of mini-fan, form by the fan micro machine (7) of the intrinsic temperature detect switch (TDS) of refrigerator (8), refrigerating chamber regenerator and the fan micro machine (6) of refrigerating chamber regenerator.The lead of the fan micro machine (7) of refrigerating chamber regenerator and the fan micro machine (6) of refrigerating chamber regenerator and the outlet of temperature detect switch (TDS) (8) link, and another root is coupled to the public zero line of refrigerator (N).

Description of drawings:

Fig. 1 is the profile of regenerator; Fig. 2 is the regenerator structural representation; Fig. 3 is the chip microcontroller circuit theory diagrams of control automatically.

1 is the section of regenerator among Fig. 1, and 2 is exterior sideviews of regenerator among Fig. 2, the 3rd, and mini-fan, the 4th, micromachine, 5 is fan guard.The rotation of mini-fan (3) can force interior air of casing and agent for storage of coldness to carry out sufficient heat exchange, for the area that makes heat exchange is tried one's best big, the outer shape of regenerator is made " king " shape, in adorn the solution of different freezing points, the freezing point of refrigerating chamber solution is more than 0 ℃, the freezing point of refrigerating chamber solution is below 0 ℃, difference according to the refrigerator star, require the freezing point of solution also just different, general family expenses three-star refrigerator, the freezing point of solution in the refrigerating chamber regenerator is got about 5 ℃, and the freezing point of solution in the refrigerating chamber regenerator is got about-14 ℃, if refrigerator also has other storeroom, get its neutral temperature for designing the freezing point of cold-storage liquid according to its fluctuations in indoor temperature scope.

The utility model adopts single-chip microcomputer control technology, its control circuit schematic diagram as shown in Figure 3, wherein mainly contain: the control circuit of freezer compressor time-division operation, by single-chip microcomputer 89c51 (14), DC relay (10), intrinsic temperature detect switch (TDS) (8), freezer compressor (9), the R of refrigerator ₁Voltage pull-up resistor, R ₅Current-limiting resistance, R ₂The discharge diode of divider resistance, DC relay coil and triode are formed; The open and close of refrigerator doors and the fortune of compressor, stop the signal circuit of signal input micro computer, by single-chip microcomputer 89c51 (14), auxiliary reclay (11), normally closed button (12), normally closed button (13), freezer compressor (9), R ₃Voltage pull-up resistor, R ₄The voltage pull-up resistor is formed; The drive circuit of control mini-fan is made up of the fan micro machine (7) of the intrinsic temperature detect switch (TDS) of refrigerator (8), refrigerating chamber regenerator and the fan micro machine (6) of refrigerating chamber regenerator.

The interchange L line of the method for attachment of the control circuit of freezer compressor time-division operation: 220V connects an end of temperature detect switch (TDS) (8), (8) the other end links to each other with an end of often opening of DC relay (10), (10) the other end of often opening links to each other with the 220V inlet wire of freezer compressor (9), and the outlet of (9) connects the zero line of 220V (N); + 5V direct current is through R ₅The back joins with control coil one end of relay (10), and the coil other end links to each other with triode, and the base stage of triode is through R ₂After meet R ₁An end again with the P of single-chip microcomputer 89C51 (14) _1.4Link to each other R ₁The galvanic zero line of another termination; The discharge diode of DC relay coil is parallel to the two ends of DC relay coil, and negative pole connects high potential.

The open and close of refrigerator doors and the fortune of compressor, stop the method for attachment of the signal circuit of signal input micro computer: control coil two ends of auxiliary reclay (11) are connected with outlet with the inlet wire of compressor (9) respectively; The direct current of+5V connects an end of often opening of (11), another termination R that often opens of (11) ₃After be connected to the P of single-chip microcomputer 89C51 (14) _2.2, R ₃The galvanic zero line of another termination; The direct current of+5V meets (12), (13) normally closed end, the other end and R that (12), (13) are normally closed respectively ₄Be connected to the P of single-chip microcomputer 89C51 (14) after joining _2.1, R ₄The galvanic zero line of another termination.

The method of attachment of the drive circuit of control mini-fan: as long as the fan micro machine (7) of refrigerating chamber regenerator and fan micro machine (6) inlet wire of refrigerating chamber regenerator are connected with the outlet of temperature detect switch (TDS) (8) and the zero line (N) of 220V alternating current respectively with outlet.

The specific embodiment:

During concrete enforcement, at first be the determining of amount of the volume of regenerator and agent for storage of coldness, the combined factors such as rate of heat dissipation of the insulation material that volume and refrigerator adopted of this time that can need stop transport according to freezer compressor, each case chamber are considered, calculating will be with what of agent for storage of coldness, thereby calculate the volume of regenerator, in result calculated, add certain surplus.

In the utility model, also need the control circuit of refrigerator is done corresponding the change, as shown in Figure 3, make compressor (9) to shut down for a long time and to move, realize by the relay (10) that is subjected to single-chip microcomputer (14) control; The startup of the mini-fan on the regenerator (6), (7) and stopping by temperature detect switch (TDS) intrinsic on the refrigerator (8) control forces air and agent for storage of coldness in the casing to carry out exchange heat; Peak of power consumption period open and close refrigerator doors will be touched normally closed switch (12) or (13) on the refrigerator doors, the fortune of compressor, stop triggering auxiliary reclay (11) is moved, signal will be gathered by single-chip microcomputer, thereby guarantee that the food of putting into refrigerator can obtain fresh-keeping effectively.Switch (12) is installed between the space at cold sotrage door and refrigerating chamber edge, is fixed on the refrigerating chamber edge, and when door closure state, switch is subjected to the compressing of doorframe, is normally open, and when opening, button is released, and just becomes normally off; Switch (13) is installed between the space at door of refrigerator and refrigerating chamber edge, is fixed on the refrigerating chamber edge, and operation principle is the same with (12).(if the repacking of old refrigerator in order to reduce the line of this device and refrigerator, does not affect the appearance, also can make (12) and (13) as long as keep one, but must be often to drive button, be installed on the control panel of setting-up time).

Device of the present utility model carries out the operation of time-division operation to refrigerator with following method:

1, at first regenerator is installed in the top of refrigerating chamber and refrigerating chamber respectively, that end of fan is arranged near evaporimeter, make wind that fan blows from inside to outside, the cold of evaporimeter can be absorbed by agent for storage of coldness fully.If refrigerator manufacturing enterprise can directly design regenerator in the case chamber interior.(if the repacking of old refrigerator, the connecting line that does not have temperature detect switch (TDS) in the freezer compartment of refrigerator that has, in order not destroy the drive circuit that refrigerating chamber connects micro machine, also can only adorn the regenerator of the pane shape that does not have fan on the top of refrigerating chamber, because the temperature of refrigerating chamber is low, below-18 ℃, also can make the agent for storage of coldness of regenerator icing fully).

Automatically open freezer compressor (9) power supply, automatic disconnection freezer compressor (9) power supply during peak of power consumption when 2, single-chip microcomputer (14) control circuit is set low power consumption by relay (10).Such as certain regional low ebb electricity time be night 21:00 to 8:00 next day; The peak electricity time be the morning 8:00 to 21:00 in night.Just be set to 8:00 auto power off in the morning; Night, 21:00 opened power supply automatically.

3, during the paddy electricity, relay (10) is connected compressor power, when temperature of refrigerating chamber is higher than 8 ℃ or freezer temperature and is higher than-9 ℃ (as long as one of them condition is set up), temperature detect switch (TDS) (8) is connected the 220V power supply, compressor (9) is just started working, mini-fan on the regenerator head (6), (7) also begin the rotation blowing, force by the Cryogenic air after the evaporator cools and blow over from the regenerator surface, carry out heat exchange with agent for storage of coldness, agent for storage of coldness has absorbed cold, form ice cube at leisure, the temperature of air just continues long time (because liquid phase and solid phase are when existing simultaneously near the agent for storage of coldness freezing point in the casing, freezing point temperature is invariable, have only and all become ice cube and just understand temperature and descend, this is the build-in attribute of phase transformation), after agent for storage of coldness is formed ice cube fully, just can make the air themperature in the casing continue to descend, when temperature of refrigerating chamber is lower than 4 ℃ and freezer temperature and is lower than-1 8 ℃ (two conditions must be set up simultaneously), temperature detect switch (TDS) (8) disconnects the 220V power supply, compressor (9) just quits work, the mini-fan on the regenerator head (6), (7) also just quit work.Can work long hours at paddy electricity period compressor like this, the cheap electricity when having made full use of paddy becomes cold into ice cube and is stored in the regenerator, discharges in the peak electricity consumption period.

4; when the peak is electric; relay (10) disconnects compressor power; then temperature will slowly rise in the refrigerator; because regenerator is on the top of case chamber; hot-air in the case will rise; arrive regenerator; ice cube wherein carries out exchange heat; just drop to the bottom of case chamber after the air cooling; so the indoor air of case just forms the free convection state; constantly carry out exchange heat, and ice cube is in the process of fusion, again because the build-in attribute of phase transformation with ice cube; the temperature of fusing point will remain unchanged for a long time; make the temperature of the free convection air in the case chamber can remain on the agent for storage of coldness melting temperature near, shut down for a long time when the peak electricity thereby reach freezer compressor, do not influence the rising of temperature in the refrigerator yet.If during this period, the case room temperature has surpassed ceiling temperature, and then temperature detect switch (TDS) (8) is just connected the 220V power supply, and the mini-fan on the regenerator head (6), (7) will start at once, force case room air and ice cube to carry out exchange heat fast, its temperature is descended.The connection of temperature detect switch (TDS) (8) can not make compressor operating, because relay (10) disconnects.As long as the amount of agent for storage of coldness designs rationally, but can not surpass the upper limit in whole peak electricity period guard box room temperature, temperature detect switch (TDS) (8) just can not connected yet, and the mini-fan on the regenerator head (6), (7) do not start during this period yet.

5, when the peak electricity time period has the people to use refrigerator to deposit, withdraw food, the open and close refrigerator doors, will touch button (12) or (13) (if old refrigerator of repacking of being installed on the refrigerator doors, when turning a refrigerator off behind the door, will be by staff by this often drives button on the control panel that is installed in setting-up time), give single-chip microcomputer (14) input signal, make the relay (10) of single-chip microcomputer (14) control open the power supply of compressor (9), if temperature detect switch (TDS) (8) is connected, then compressor (9) is just worked immediately.Also might work as the food put into the cold of refrigerator absorb make the case room temperature surpass ceiling temperature after, just start after making temperature detect switch (TDS) (8) connect the 220V power supply, compressor (9) runs to and makes the case room temperature arrive lower limit, temperature detect switch (TDS) (8) automatic disconnection 220V power supply, just quit work, the signal that compressor (9) is stopped transport is by being connected in parallel on auxiliary reclay (11) the input single-chip microcomputer (14) on the compressor (9), make single-chip microcomputer (14) control relay (10) disconnect the power supply of compressor (9), peak electricity period compressor (9) has not just again been worked.If the paddy electricity period, then single-chip microcomputer (14) does not receive above instruction.

From above-mentioned enforcement as can be seen; this device can make refrigerator at paddy electricity in the period; compressor moves for a long time; cold is stored in the agent for storage of coldness; and in peak of power consumption in the time period; compressor is shut down for a long time, relies on the cold in the agent for storage of coldness to discharge at leisure, has guaranteed that the indoor temperature of case is in the scope that requires.

Because the operation of compressor long period during the paddy electricity, reduced the number of starts of compressor, so just prolonged the service life of compressor, again because the compressor start electric current is 7 times of running current, so every day, the number of starts reduced, also just saved electric weight, power saving rate is added and has fully been used cheap low ebb electricity about 15%, and the electricity charge of saving will be 50% to 70%.

Claims

1, a kind of device that makes the refrigerator time-division operation is made up of regenerator and single chip machine controlling circuit, in refrigerating chamber, refrigerating chamber and other storeroom in the refrigeratory body regenerator is installed, and it is characterized in that the contour structures of regenerator is " king " shape, and an end is equipped with mini-fan.

2, according to the right 1 described device that makes the refrigerator time-division operation, it is characterized in that being equipped with single chip machine controlling circuit, comprise the control circuit of freezer compressor time-division operation: by single-chip microcomputer 89c51 (14), DC relay (10), intrinsic temperature detect switch (TDS) (8), freezer compressor (9), the R of refrigerator ₁Voltage pull-up resistor, R ₅Current-limiting resistance, R ₂The discharge diode of divider resistance, DC relay coil and triode are formed, compressor (9) and DC relay (10) are in series, and the open and close of refrigerator doors and the fortune of compressor, stop the signal circuit of signal input micro computer by single-chip microcomputer 89c51 (14), auxiliary reclay (11), normally closed button (12), normally closed button (13), freezer compressor (9), R ₃Voltage pull-up resistor, R ₄The voltage pull-up resistor is formed, normally closed button (12) is installed between the space at cold sotrage door and refrigerating chamber edge, be fixed on the refrigerating chamber edge, normally closed button (13) is installed between the space at door of refrigerator and refrigerating chamber edge, be fixed on the refrigerating chamber edge, auxiliary reclay (11) is in parallel with freezer compressor (9), the drive circuit of control mini-fan, by the intrinsic temperature detect switch (TDS) of refrigerator (8), the fan micro machine (7) of refrigerating chamber regenerator and the fan micro machine (6) of refrigerating chamber regenerator are formed, the lead of the fan micro machine (7) of refrigerating chamber regenerator and the fan micro machine (6) of refrigerating chamber regenerator and the outlet of temperature detect switch (TDS) (8) link, and another root is coupled to the public zero line of refrigerator (N).