CN2302484Y - Electric refrigerator with microwave dofreezing function - Google Patents
Electric refrigerator with microwave dofreezing function Download PDFInfo
- Publication number
- CN2302484Y CN2302484Y CN 97221297 CN97221297U CN2302484Y CN 2302484 Y CN2302484 Y CN 2302484Y CN 97221297 CN97221297 CN 97221297 CN 97221297 U CN97221297 U CN 97221297U CN 2302484 Y CN2302484 Y CN 2302484Y
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- CN
- China
- Prior art keywords
- microwave
- refrigerator
- control circuit
- defrosting
- relay
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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 - Fee Related
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Abstract
The utility model relates to an electric refrigerator with a microwave defrosting function, which comprises a microwave defrosting device in a refrigerator. The electric refrigerator with a microwave defrosting function is composed of a microwave transmitting apparatus, an electromagnetic wave shielding device, a control circuit, and adjustable defrosting space. A microwave emitting head which is arranged on a wall of a freezing chamber can radiate high-frequency electromagnetic waves to the defrosting space and can heat defrosting food products under control. The electric refrigerator with a microwave defrosting function has a timing function and a double control function on temperature; under the non-timed condition, the defrosting action can be conducted through manual trigger control; the design does not need to occupy additional space, and the electric refrigerator with a microwave defrosting function has obvious characteristics of convenient defrosting action of the food products and time saving, and the electric refrigerator with a microwave defrosting function can particularly ensure that the food products can be evenly and moderately defrosted without breaking flavor of the food products.
Description
The utility model relates to a kind of refrigerator, relates to a kind of refrigerator with microwave thawing function particularly.
The present refrigerator that generally uses, for example household electric refrigerator does not have freezing the function of thawing of animal product.When desire was thawed to frozen food, often the method that adopts had: 1) natural freezing process, that is, will treat that defrosting food is placed on natural conditions and orders that it thaws voluntarily; 2) the heating freezing process is for example used warm water; 3) by means of the thawing equipment of special use, for example use defreezing by microwave oven etc.Wherein, natural freezing process generally needs the long time, for this reason, must shift to an earlier date the regular hour during cooking to prepare; The heating subject matter of thawing is that the time, the temperature that heat all are not easy to grasp rightly, just causes the loss of flavour of food products even rotten slightly because of carelessness; And the use specialized apparatus for example uses micro-wave oven to thaw, though its effect is more much better than preceding two kinds of methods, special equipment will occupy indoor additional space, and the whole operation process is also cumbersome.
The purpose of this utility model is to overcome these deficiencies of existing refrigerator and proposes a kind of refrigerator with microwave thawing function.Its not only feasible operation of thawing to frozen food becomes quite easy, quick, and does not need to occupy additional space, and the original local flavor and the quality of food can both be maintained reliably.
Above-mentioned purpose of the present utility model is to realize by following technological means.
Refrigerator of the present utility model is except that having parts such as refrigerating chamber, refrigeration system, refrigerator main control circuit, a microwave thawing device also is provided in refrigerator, and this microwave thawing device is made up of microwave launcher, electromagnetic wave shielding device, control circuit and the adjustable space that thaws.
Described microwave launcher becomes frequency electromagnetic waves with the transformation of electrical energy of electric main; And to the space radiation electromagnetic wave that thaws of refrigerating chamber; Described electromagnetic wave shielding device is used to prevent space radiation or the leakage in addition of high-frequency electromagnetic wave direction refrigerating chamber; Described control circuit then from electric assurance microwave thawing device according to the designing requirement operate as normal.
Below in conjunction with content shown in the drawings the formation and the working condition of the utility model each several part are done detailed description, wherein:
Fig. 1 is for showing the view of microwave thawing device basic comprising situation described in the utility model;
Fig. 2 is to the cutaway view of being got with the A-A among Fig. 1;
Fig. 3 is the schematic diagram of microwave thawing device control circuit described in the utility model.
Earlier referring to Fig. 2, as can be seen from the figure, microwave launcher includes micro oscillation pipe 2, microwave emitting head 1 and reflection cavity and coupling aperture 5, wherein fawshmotron 2 and microwave emitting head 1 are set at the outside (evaporimeter itself is not shown in the drawings) of freezer evaporator, they are fixed on the freezer compartment wall 6 by microwave tube fixed mount 4 and reflection room frame 3, form above-mentioned reflection cavity and coupling aperture 5 jointly by the part of reflection room frame 3 and freezer compartment wall 6.
With reference now to Fig. 1,, as can be seen from the figure electromagnetic wave shielding device comprises the metallic walls 6 of refrigerating chamber 1, be arranged on metal screen layer 8 and anti-microwave leakage device on the refrigerating chamber door 7, wherein said metal screen layer 8 is arranged on the inboard near refrigerating chamber door 7, described anti-microwave leakage device comprises around metal screen layer 8, crack between a door and its frame place near refrigerating chamber door 7 is provided with, and guiding gutter 10 that joins together with described metal screen layer 8 and the microwave absorbing material 9 that is provided with in the outer rim vicinity of guiding gutter 10, for example ferrite absorbent material.Label 1 is an outcase of refrigerator.
As can be seen from Figure 3, control circuit comprises the microprocessor automatic control circuit, manual triggers control circuit and safety protective circuit.Wherein, the microprocessor automatic control circuit comprises microprocessor control unit, and this microprocessor control unit has input that receives timing controling signal and temperature control signals and the output of controlling output relay work, one of them output relay J
2Contact K
3In series be connected in the middle of terminals of the elementary winding of power transformer and feeder ear of AC power, and another output relay J
3Contact K
6Then in series be connected in the input circuit of an impulse generator, the output of this impulse generator is controlled a high-voltage relay J
4Work, this high-voltage relay J
4Contact K
7In series be connected in the anode supply loop of aforementioned fawshmotron 2; The manual triggers control circuit comprises manual trigger switch K and is subjected to the time-delay of this manual trigger switch control to disconnect relay J
5Contact K
5With the above-mentioned relay J of exporting out
2Contact K
3Be in parallel; Safety and holding circuit comprise a safety switch K
2And by current-limiting resistance R
1With a time delay closing relay J
1Contact K
4The anti-start dash current circuit that is in parallel and forms, door safety switch K
2With current-limiting resistance R
1And total power switch K
1Mutually series connection, they are in series inserted the centre of another feeder ear of another terminals of the elementary winding of above-mentioned power transformer and described AC power.
In addition, also have one by freezer compartment wall 6 in refrigerating chamber, the bulkhead bracket and the adjustable metal partion (metp) that are arranged on the freezer compartment wall 6 constitute the adjustable space that thaws.
The working condition of control circuit is described now.As total power switch K
1During closure, microprocessor control unit is promptly in running order, and its exports the calling organ J that continues according to timing signal of setting in advance and the control of temperature signal value
2With J
3Work, thereby cut off the power supply of fawshmotron, in other words,, all stop the work of microwave launcher automatically as long as any reaches and gives first setting value in timing signal and the temperature signal.In addition, when desiring to thaw when not setting timing signal, can use manual triggers control, only need press manual trigger switch K this moment, and time-delay disconnects relay J
5After time-delay a period of time, pass through its contact K
5Automatically cut off the electricity supply.If above-mentioned during this period of time within temperature signal arrived setting value because output relay J
3Action, circuit is still cut off automatically, thus the generation of the phenomenon that can prevent from fully too to thaw.In addition, when refrigerating chamber door was opened, no matter which kind of state whole device was in, because door safety switch K
2Disconnect, circuit is all cut off immediately, thereby guarantees operating personnel's safety.In control circuit, high-voltage relay J
4Be controlled by impulse generator, so that the anode supply of connecting and disconnecting fawshmotron discontinuously, thereby the power output of control oscillating tube.
In this control circuit, the suggestion of the desired temperature scope of microprocessor automatic control circuit is 0 to 5 degree centigrade; Time-delay disconnects relay J
5Reference time delay be 1 to 5 minute; Door safety switch K
2Can select votage control switch.
For size according to the adjustable space that thaws of the volume-adjustment of the article that thawed, so that reasonably utilize limited space in the freezer compartment of refrigerator, on the freezer compartment wall bulkhead bracket more than two groups should be set, generally can select 2 to 3 groups to get final product.
In addition, in order to simplify the design of refrigerator integral body, and reduce volume, the control circuit of microwave thawing device can integrally be set together with the governor circuit of refrigerator as far as possible.
Because what microwave thawing device described in the utility model adopted is regularly to control with temperature dual, therefore can guarantee fully to treat that defrosting food can be by excessive heat.Particularly course of defrosting be not with the isolated fully condition of refrigeration system under carry out, treat that promptly defrosting food is being subjected to heated while of microwave irradiation, the constraint of being freezed to a certain extent again.When the volume for the treatment of defrosting food differs in size or thin and thick when irregular, the work of refrigeration system will make that the temperature rise of food of the less or thinner thickness of volume is unlikely too fast, thereby all food is thawed uniformly, also therefore and unlikely destroyed, this advantage is that other defreezing method is unapproachable to original local flavor of food.
The utility model is suitable for all kinds of refrigerators, is specially adapted to all kinds of frost-free type refrigerators.
Claims (6)
1, a kind of refrigerator includes refrigerating chamber, it is characterized in that: be provided with a microwave thawing device in refrigerator, this microwave thawing device is made up of microwave launcher, electromagnetic wave shielding device, control circuit and the adjustable space that thaws, wherein:
Described microwave launcher comprises, fawshmotron (2), microwave emitting head (1) and reflection cavity and coupling aperture (5), described fawshmotron (2) and microwave emitting head (1) are set at the outside of freezer evaporator, they are fixed on the freezer compartment wall (6) by microwave tube fixed mount (4) and reflection room frame (3), form described reflection cavity and coupling aperture (5) jointly by the part of reflection room frame (3) and freezer compartment wall (6);
Described electromagnetic wave shielding device comprise refrigerating chamber (12) metallic walls (6), be arranged on metal screen layer (8) and anti-microwave leakage device on the refrigerating chamber door (7), described metal screen layer (8) is arranged on the inboard near described refrigerating chamber door (7), and described anti-microwave leakage device comprises around described metal screen layer (8), be provided with and guiding gutter (10) that joins together with described metal screen layer (8) and the microwave absorbing material (9) that is provided with in the outer rim vicinity of described guiding gutter (10) near the crack between a door and its frame place of described refrigerating chamber door (7);
Described control circuit comprises microprocessor automatic control circuit, manual triggers control circuit and safety and holding circuit: described microprocessor automatic control circuit comprises that microprocessor control unit, this microprocessor control unit have input that receives timing controling signal and temperature control signals and the output of controlling output relay work, one of them output relay (J
2) contact (K
3) in series be connected in the middle of terminals of the elementary winding of power transformer and feeder ear of AC power, and another output relay (J
3) contact (K
6) then series connection is in the input circuit of an impulse generator, the output of described impulse generator is controlled a high-voltage relay (J
4) work, described high-voltage relay (J
4) contact (K
7) then in series be connected in the anode supply loop of described fawshmotron (2); Described manual triggers control circuit comprises a manual trigger switch (K) and a time-delay disconnection relay (J who is subjected to this manual trigger switch control
5), described time-delay disconnects relay (J
5) contact (K
5) and described output relay (J
2) contact (K
3) be in parallel; Described safety and holding circuit comprise a safety switch (K
2) and by current-limiting resistance (R
1) and a time delay closing relay (J
1) the anti-start dash current circuit of contact (K4) composition parallel with one another, described door safety switch (K
2) and described current-limiting resistance (R
1) and total power switch (K
1) mutually series connection, they are in series inserted in the middle of another feeder ear of another terminals of the elementary winding of described power transformer and described AC power;
The described adjustable space that thaws by freezer compartment wall (6), be arranged on bulkhead bracket on the freezer compartment wall (6) and movable metal partion (metp) constitutes.
2, refrigerator as claimed in claim 1 is characterized in that: the desired temperature scope of described microprocessor automatic control circuit is 0 to 5 degree centigrade.
3, refrigerator as claimed in claim 1 is characterized in that: described time-delay disconnects relay (J
5) reference time delay be 1 to 5 minute.
4, refrigerator as claimed in claim 1 is characterized in that: described door safety switch (K
2) be votage control switch.
5, refrigerator as claimed in claim 1 is characterized in that: the quantity of described bulkhead bracket is 2 to 3 groups.
6, refrigerator as claimed in claim 1 is characterized in that: the main control circuit of described control circuit and refrigerator integrally is set together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97221297 CN2302484Y (en) | 1997-07-17 | 1997-07-17 | Electric refrigerator with microwave dofreezing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97221297 CN2302484Y (en) | 1997-07-17 | 1997-07-17 | Electric refrigerator with microwave dofreezing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2302484Y true CN2302484Y (en) | 1998-12-30 |
Family
ID=33936736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97221297 Expired - Fee Related CN2302484Y (en) | 1997-07-17 | 1997-07-17 | Electric refrigerator with microwave dofreezing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2302484Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1292674C (en) * | 2004-06-15 | 2007-01-03 | 王博廉 | Electronic transforming and frequency inverting inducer and electrostatic preserving and defreezing method |
| CN1328560C (en) * | 2004-09-29 | 2007-07-25 | 海信集团有限公司 | Refrigerator of automatic defrosting frozen food at set time |
| CN104186635A (en) * | 2014-09-05 | 2014-12-10 | 海信容声(广东)冰箱有限公司 | Thawing device of refrigerator |
| CN105277676A (en) * | 2015-11-17 | 2016-01-27 | 山东交通学院 | Movable test device and method for measuring road surface microwave deicing performance |
| CN109000417A (en) * | 2017-06-06 | 2018-12-14 | 青岛海尔股份有限公司 | Thawing apparatus and refrigerator with the thawing apparatus |
| CN109990530A (en) * | 2017-12-29 | 2019-07-09 | 青岛海尔股份有限公司 | Thawing apparatus and refrigerator with the thawing apparatus |
| CN109990535A (en) * | 2017-12-29 | 2019-07-09 | 青岛海尔股份有限公司 | Thawing apparatus and refrigerator with the thawing apparatus |
| CN111092545A (en) * | 2019-12-24 | 2020-05-01 | 广东美的白色家电技术创新中心有限公司 | Impulse current suppression device |
| CN111989527A (en) * | 2018-04-18 | 2020-11-24 | 松下知识产权经营株式会社 | Refrigerator with a door |
-
1997
- 1997-07-17 CN CN 97221297 patent/CN2302484Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1292674C (en) * | 2004-06-15 | 2007-01-03 | 王博廉 | Electronic transforming and frequency inverting inducer and electrostatic preserving and defreezing method |
| CN1328560C (en) * | 2004-09-29 | 2007-07-25 | 海信集团有限公司 | Refrigerator of automatic defrosting frozen food at set time |
| CN104186635A (en) * | 2014-09-05 | 2014-12-10 | 海信容声(广东)冰箱有限公司 | Thawing device of refrigerator |
| CN105277676A (en) * | 2015-11-17 | 2016-01-27 | 山东交通学院 | Movable test device and method for measuring road surface microwave deicing performance |
| CN109000417A (en) * | 2017-06-06 | 2018-12-14 | 青岛海尔股份有限公司 | Thawing apparatus and refrigerator with the thawing apparatus |
| CN109000417B (en) * | 2017-06-06 | 2021-03-23 | 海尔智家股份有限公司 | Thawing device and refrigerator with same |
| CN109990535A (en) * | 2017-12-29 | 2019-07-09 | 青岛海尔股份有限公司 | Thawing apparatus and refrigerator with the thawing apparatus |
| CN109990530A (en) * | 2017-12-29 | 2019-07-09 | 青岛海尔股份有限公司 | Thawing apparatus and refrigerator with the thawing apparatus |
| CN109990530B (en) * | 2017-12-29 | 2023-11-21 | 海尔智家股份有限公司 | Thawing device and refrigerator with thawing device |
| CN111989527A (en) * | 2018-04-18 | 2020-11-24 | 松下知识产权经营株式会社 | Refrigerator with a door |
| CN111989527B (en) * | 2018-04-18 | 2022-05-27 | 松下知识产权经营株式会社 | Refrigerator with a door |
| US11573044B2 (en) | 2018-04-18 | 2023-02-07 | Panasonic Intellectual Property Management Co., Ltd. | Refrigerator |
| CN111092545A (en) * | 2019-12-24 | 2020-05-01 | 广东美的白色家电技术创新中心有限公司 | Impulse current suppression device |
| CN111092545B (en) * | 2019-12-24 | 2020-11-17 | 广东美的白色家电技术创新中心有限公司 | Impulse current suppression device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |