CN2740974Y - Cold-storing refrigerator - Google Patents
Cold-storing refrigerator Download PDFInfo
- Publication number
- CN2740974Y CN2740974Y CN 200420095230 CN200420095230U CN2740974Y CN 2740974 Y CN2740974 Y CN 2740974Y CN 200420095230 CN200420095230 CN 200420095230 CN 200420095230 U CN200420095230 U CN 200420095230U CN 2740974 Y CN2740974 Y CN 2740974Y
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- China
- Prior art keywords
- cold
- circuit
- refrigerator
- storing
- battery
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The utility model discloses a cold-storing refrigerator, comprising a refrigerator evaporator, a cold-storage device for accumulating evaporator cold, a cold air duct for the cold-storage device exchanging heat with one or a plurality of compartments, a fan electromotor (4), a refrigerator controller and a charging-discharging accumulator (2). The charging circuit (6) of the accumulator (2) is connected with a power switching circuit (5), and the discharging circuit of the accumulator (2) is connected with a circuit breaking testing circuit (7), a delaying controlling circuit (8) and the fan electromotor (4). The refrigerator of the utility model can guarantee basically the temperature of the refrigerator compartments even in circuit breaking, increases fresh-keeping function in abnormal condition and removes the problem of food getting bad because of circuit breaking in daily life. Customers can take their ease to use, and the refrigerator has stronger competitive power.
Description
Technical field
The utility model relates to refrigerator, more particularly, relates to a kind of refrigerator with cool storage function.
Background technology
Because the deficiency of supply of electric power, implement the policy of rationing the power supply in many areas, as (especially summer) domestic household often has a power failure in the shortage of electric power area, or the several hrs that has a power failure every day, having a power failure, the temperature of chamber can only rely on the insulation of refrigerator heat-insulation layer between the refrigerator of back, power off time has been grown, between the temperature of chamber raise gradually, the food in the refrigerator is apt to deteriorate, particularly refrigerating chamber, the heat-insulation layer design is thinner, and the back temperature recovery that has a power failure is very fast.The electricity price that the policy of rationing the power supply also is included in peak times of power consumption in one day is higher than the electricity price of electricity consumption low peak period, for fear of freezer compressor refrigerating operaton when the peak of power consumption, reduce consumer's cost burden, on June 26th, 2002 disclosed application number be that 01255478.2 Chinese utility model patent discloses a kind of time-division operation rfrigerator, its casing is established cold storage chamber, utilize cold that cold storage chamber accumulates peak times of power consumption to the refrigerating chamber cooling, do not start shooting when the peak of power consumption to realize refrigerator, use this refrigerator can reduce demand charge in the area of carrying out the time-shared charge electrovalence policy, for the user brings material benefit.But this refrigerator is after power failure, and refrigerator can't be worked, and the cold of cold storage chamber can not pass to refrigerating chamber, can't stop the temperature recovery problem of refrigerating chamber.
The utility model content
The technical problems to be solved in the utility model is to provide a kind of cold-storing refrigerator, this refrigerator is after power failure in a period of time, cold-storage device can continue to transmit cold to a chamber, make that the storage temperature of chamber is maintained between refrigerator, even still can guarantee the temperature of chamber between refrigerator after having a power failure, food can keep fresh and not influenced by power failure, to overcome the deficiencies in the prior art.
The technical scheme that the utility model solves the problems of the technologies described above is such: a kind of cold-storing refrigerator of the operation that has a power failure, comprise evaporator of refrigerator, accumulate the cold-storage device of evaporimeter cold, make the cold-storage air channel and the fan electromotor 4 of cold-storage device and one or more chamber heat exchanges, refrigerator controller, also comprise a battery that can discharge and recharge 2, the charging circuit 6 of described battery 2 is connected with power-switching circuit 5, connects power failure detection circuit 7, delay control circuit 8 and fan electromotor 4 on the discharge circuit of described battery 2.
In the above-mentioned cold-storing refrigerator, also connect temperature detect switch (TDS) 3 on the discharge circuit of described battery 2, described temperature detect switch (TDS) is arranged on the cold-storage device.
In the above-mentioned cold-storing refrigerator, described power-switching circuit 5 comprises 220V electric main reduction voltage circuit, current rectifying and wave filtering circuit, mu balanced circuit.
In the above-mentioned cold-storing refrigerator, the delay time of delay control circuit 8 is in 30～100min.
In the above-mentioned cold-storing refrigerator, the rated voltage of battery 2 and fan electromotor 4 is 12V.
The utility model compared with prior art has the following advantages and beneficial effect: when refrigerator connected the 220V civil power, refrigerator was pressed civil power operational mode control refrigerator work, and to charge in batteries.Freezer compressor is not worked in civil power outage back, and battery is extracted the cold of cold-storage device for the refrigerating chamber refrigeration out to a chamber fan discharge after the time-delay dozens of minutes that has a power failure.Even refrigerator under power down mode, also can guarantee the temperature of chamber between refrigerator substantially, increased the fresh-keeping function under abnormal condition, solved the life in the user because of the worry that power failure causes food to degenerate, make the user use relievedly, refrigerator has more the market competitiveness.
Description of drawings
Fig. 1 is the accumulator charging/discharging circuit logic diagram of cold-storing refrigerator of the present utility model;
Fig. 2 is the accumulator charging/discharging circuit schematic diagram of cold-storing refrigerator of the present utility model.
The specific embodiment
Each label is represented respectively among Fig. 1 and Fig. 2: 1---control circuit board, 2---battery, 3---cold storage chamber's temperature detect switch (TDS), 4---fan electromotor, 5---power-switching circuit, 6---charging circuit, 7---power failure detection circuit, 8---delay control circuit.
Refrigerator of the present utility model is established cold-storage device, and this cold-storage device is in cold storage chamber independently, and cold storage chamber communicates with cold compartment of refrigerator by the cold-storage air channel, and fan is set in refrigerating chamber.The cold-storage material of cold-storage device phase change cold-storage when evaporator of refrigerator freezes, when compressor shutdown, cold-storage device can transmit cold to refrigerating chamber, prolongs the downtime of compressor.In a single day general refrigerator has a power failure, and the controller of refrigerator just can't be worked, and therefore also can't make the fan operation, and the cold of cold storage chamber also can't take in the refrigerating chamber.
The utility model is having now on the control system, has increased to be exclusively used in the battery circuit of back to the fan electromotor power supply that have a power failure.As shown in Figure 1, when the refrigerator normal power supply, charge a battery, cut off the power supply that battery is given delay circuit and fan electromotor by outage detection control simultaneously by power-switching circuit and charging circuit.After refrigerator outage, then battery discharging is powered to delay circuit, delay circuit after time-delay, fan motor runs.All discharge aft-fan for fear of cold and do useless running at the cold-storage material, serial connection temperature detect switch (TDS) 3 on the discharge circuit of battery, temperature detect switch (TDS) is installed in the cold storage chamber, experience the temperature of cold storage chamber, conducting when cold storage chamber's temperature is lower than temperature T 1, disconnect when cold storage chamber's temperature is higher than temperature T 2, disconnect the discharge of battery, fan electromotor is out of service.The span of T1 is in-1～-6 ℃, and the span of T2 is in 1～5 ℃.
Referring to Fig. 2, the power-switching circuit 5 of control circuit board 1 comprises traditional transformer T1 step-down, rectifying and wave-filtering and mu balanced circuit U1, and the 220V civil power is converted to the 15V DC voltage to battery 2 chargings.Charging circuit 6 is made of R3 and diode D2, and suitable battery is small-sized closed, rated voltage 12V, capacity 0.8Ah.Power failure detection circuit 7 comprises triode Q2 and R1, and delay control circuit 8 mainly comprises triode Q1, capacitor C 5 and time base circuit 555.The base stage of triode Q2 connects resistance R 1, after the other end of R1 is connected mu balanced circuit U1, when the operation of refrigerator civil power, during battery 2 chargings, triode Q2 conducting, capacitor C 5 can not be charged, time base circuit 555 is not worked, and triode Q1 ends, and fan electromotor 4 can not be powered by battery 2 charging circuits, under city's power mode, the running of fan is controlled by former control circuit.After the civil power outage, charging circuit disconnects, and triode Q2 ends.After the outage, if 3 connections of cold storage chamber's temperature detect switch (TDS), then battery discharging, battery is to 555 power supplies, and charging constitutes delay circuit to C5 by R2, R5 simultaneously, and the delay time of delay control circuit 8 is in 30～100min.Delay time is to back triode Q1 conducting, fan electromotor operation.Replenish cold to cold compartment of refrigerator, disconnect when cold storage chamber's temperature is increased to temperature detect switch (TDS) 3, fan is out of service.In the battery discharging process, after refrigerator recovers civil power, the Q2 conducting, C5 ends Q1 by R5, Q2 discharge, and fan electromotor is out of service.
In the utility model, power-switching circuit is converted to low-voltage direct with the alternating current 220V power supply, so that the charge power supply of battery is provided when electricity is arranged.Battery is charging when electricity is arranged, and outage back is to the fan electromotor power supply, and fan electromotor is used for after power failure the cold in the cold storage chamber extracted out and is discharged into refrigerating chamber.Fan electromotor adopts rated voltage 12V, the rated current dc fan motor less than 80mA.Battery and control circuit board are contained in outer electrical equipment box of case or compressor bin.
Claims (5)
1. cold-storing refrigerator, comprise evaporator of refrigerator, accumulate the cold-storage device of evaporimeter cold, make the cold-storage air channel and the fan electromotor (4) of cold-storage device and one or more chamber heat exchanges, refrigerator controller, it is characterized in that: also comprise a battery that can discharge and recharge (2), the charging circuit (6) of described battery (2) is connected with power-switching circuit (5), connects power failure detection circuit (7), delay control circuit (8) and fan electromotor (4) on the discharge circuit of described battery (2).
2. cold-storing refrigerator according to claim 1 is characterized in that: also connect temperature detect switch (TDS) (3) on the discharge circuit of described battery (2), described temperature detect switch (TDS) is arranged on the cold-storage device.
3. cold-storing refrigerator according to claim 2 is characterized in that: described power-switching circuit (5) comprises 220V electric main reduction voltage circuit, current rectifying and wave filtering circuit, mu balanced circuit.
4. according to claim 1 or 2 or 3 described cold-storing refrigerators, it is characterized in that: the delay time of described delay control circuit (8) is in 30～100min.
5. cold-storing refrigerator according to claim 4 is characterized in that: the rated voltage of described battery 2 and fan electromotor 4 is 12V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420095230 CN2740974Y (en) | 2004-11-12 | 2004-11-12 | Cold-storing refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420095230 CN2740974Y (en) | 2004-11-12 | 2004-11-12 | Cold-storing refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2740974Y true CN2740974Y (en) | 2005-11-16 |
Family
ID=35351264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420095230 Expired - Lifetime CN2740974Y (en) | 2004-11-12 | 2004-11-12 | Cold-storing refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2740974Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105509395A (en) * | 2014-10-09 | 2016-04-20 | 东芝开利株式会社 | Moveable cold insulation box and moveable cold insulation box system |
| CN113359561A (en) * | 2021-06-17 | 2021-09-07 | 海盐顺顺运输有限公司 | Intelligent refrigeration house remote monitoring platform system |
-
2004
- 2004-11-12 CN CN 200420095230 patent/CN2740974Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105509395A (en) * | 2014-10-09 | 2016-04-20 | 东芝开利株式会社 | Moveable cold insulation box and moveable cold insulation box system |
| CN113359561A (en) * | 2021-06-17 | 2021-09-07 | 海盐顺顺运输有限公司 | Intelligent refrigeration house remote monitoring platform system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20090715 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |