CN204027126U - Wind cycle intelligent refrigerator capable of defrosting - Google Patents
Wind cycle intelligent refrigerator capable of defrosting Download PDFInfo
- Publication number
- CN204027126U CN204027126U CN201420298166.1U CN201420298166U CN204027126U CN 204027126 U CN204027126 U CN 204027126U CN 201420298166 U CN201420298166 U CN 201420298166U CN 204027126 U CN204027126 U CN 204027126U
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- refrigerating chamber
- defrosting
- intake stack
- refrigerator capable
- air duct
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Abstract
The utility model discloses a kind of wind cycle intelligent refrigerator capable of defrosting, relate to household appliance technical field.Existing domestic refrigerator, the quick-thawing of food affects mouthfeel and causes nutrition leak, needs manual operations at refrigerating chamber thawed foodstuff.Wind cycle intelligent refrigerator capable of defrosting utilizes single-chip microcomputer control technology and wind circulating technology realization reservation to thaw, it comprises multiple refrigerating chamber and refrigerating chambers heat insulation, independent temperature control, between refrigerating chamber and refrigerating chamber, be connected with return air duct with intake stack, magnetic valve and air pump are housed on intake stack and return air duct, SCM system control magnetic valve and air pump, the heat that circulated air is carried refrigerating chamber slowly flows into refrigerating chamber, freezing food completes slowly and automatically thaws at user's subscription time, has retained to greatest extent nutrition and the mouthfeel of food.Meanwhile, because the cold of the design of the heat insulation refrigerating chamber of multiple independence and refrigerating chamber slowly flows into refrigerating chamber, it saves electric energy than current refrigerator.
Description
Technical field
The utility model relates to refrigeration technology field, relates in particular to domestic refrigerator.
Background technology
As shown in Figure 2, in 1 stage, food cooling is freezing to be deposited current refrigerator frozen food temperature variation curve; In 2 stages, food is in freezing preservation; In 3 stages, food is taken out in refrigerator, is placed on the plate that thaws and naturally thaws; In 4 stages, heating is thawed, and user is not free to be waited nature and thaw, and puts into warm water or micro-wave oven thaws.On dining table, the meat product of quick-thawing is as the mouthfeel of blockishness, and part food is left finally to abandon.
Experienced user, proceeds to refrigerating chamber by freezing food from refrigerating chamber, and the variations in temperature of food is thawed as shown in frozen food temperature variation as Fig. 3 refrigerating chamber, and in 1 stage, food cooling is freezing to be deposited; In 2 stages, food is in freezing preservation; In 3 stages, food slowly thaws at refrigerating chamber; In 4 stages, food is taken out in refrigerator, and food is placed on normal temperature environment culinary art.On dining table, enjoy great popularity.But nowadays people generally do not have enough sleep, in the morning busy, often forget food is proceeded to refrigerating chamber from refrigerating chamber.Result only has again quick-thawing, because mouthfeel is too poor, part food is still thrown away.The inconvenience of thawing, user or be unwilling to use refrigerating chamber, or the full busy culinary art of thawing of refrigerating chamber.
Document " thawing apparatus and be provided with the refrigerator of thawing apparatus " CN102878756A, discloses a kind of thawing apparatus, utilizes adopting heat pipes for heat transfer thawed foodstuff.CN02121055.1 proposes to adopt the used heat of Machine Room to thaw; The thawing apparatus that CN97126440.6 proposes, this thawing apparatus not only needs electric heater and air-supply arrangement, also to have independent between chamber.Therefore good automatic refrigerator capable of defrosting becomes the industry technical issues that need to address, to provide a kind of thawed foodstuff mouthfeel.
Summary of the invention
The utility model technical issues that need to address are: reduce nutrition and the mouthfeel of course of defrosting infringement food, freezing food thaws automatically at user's subscription time, saves electric energy.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: wind cycle intelligent refrigerator capable of defrosting is divided into multiple refrigerating chambers and refrigerating chamber, between them, be provided with heat-insulation layer heat insulation, each refrigerating chamber has a privately owned hermatic door, and all refrigerating chambers have a public hermatic door, when depositing frozen food, first open public hermatic door, open the privately owned hermatic door of specific refrigerating chamber, the privately owned hermatic door of other refrigerating chamber is not opened again, and reduces cold and leaks.Refrigerating chamber, refrigerating chamber and outcase of refrigerator are respectively arranged with temperature sensor, and are connected with single-chip microcomputer, measure the temperature of refrigerating chamber, refrigerating chamber and outcase of refrigerator, and SCM system is independently controlled the temperature of each refrigerating chamber and refrigerating chamber.Between each refrigerating chamber and refrigerating chamber, be connected with intake stack and return air duct, the intake stack of refrigerating chamber is connected with the return air duct of refrigerating chamber, and the return air duct of refrigerating chamber is connected with the intake stack of refrigerating chamber.Magnetic valve and air pump are housed on intake stack and return air duct, thereby Single-chip Controlling magnetic valve and air pump are controlled air and are circulated between refrigerating chamber and refrigerating chamber, reach the object that control refrigerating chamber heat slowly flows into refrigerating chamber, realize frozen food and complete slowly and thaw at user's subscription time.
The air inlet of intake stack and air outlet, screen pack is all equipped with at the air inlet of return air duct and air outlet place, prevents that foreign matter from entering pipeline.Wind pipe is connected electric swinging air port with intake stack end, makes refrigerating chamber and temperature of refrigerating chamber even, and heat exchange is abundant.Intake stack and return air duct have double-decker, and inner layer pipe can disassembly, cleaning, prevent bacteria breed.The intake stack of refrigerating chamber is positioned at the bottom of refrigerating chamber, and the return air duct of refrigerating chamber is positioned at the top of refrigerating chamber.The intake stack of refrigerating chamber is positioned at its top, and the return air duct of refrigerating chamber is positioned at its bottom.Higher temperature gas rises naturally, and lower temperature gas declines naturally, is conducive to abundant heat exchange.
The control method of wind cycle intelligent refrigerator capable of defrosting comprises the following steps:
1) SCM system records the outer room temperature variation of refrigerator;
2) user, when each refrigerating chamber is put into and treated frozen food, by SCM system input equipment, sets the reservation of food in each refrigerating chamber and takes the time, sets nature and thaws and the ratio of wind circulative defrosting time;
3) speed of SCM system test wind circulative defrosting and the speed of naturally thawing, the time of estimation wind circulative defrosting and the time of naturally thawing, calculating nature thaws and the wind circulative defrosting time started.Naturally thawing is the refrigeration of closing refrigerating chamber, and the temperature of refrigerating chamber rises naturally, the process that causes frozen food to thaw.Wind circulative defrosting is the heat that absorbs refrigerating chamber by air in intake stack and return air duct circulating frozen chamber, and refrigerating chamber and refrigerating chamber carry out the process of isothermal;
4) SCM system utilizes the outer room temperature change curve prediction of the refrigerator room temperature on the same day of the previous day record to change, and utilizes room temperature and the error of thawing last time on the same day, revises naturally thawing and the start time point of wind circulative defrosting of frozen food;
5) record the error of actual thawing time and reservation thawing time, when thawing evaluation time next time.
Brief description of the drawings.
Fig. 1 is wind cycle intelligent refrigerator capable of defrosting structural representation.
Fig. 2 is current refrigerator frozen food temperature changing curve diagram.
Fig. 3 is the refrigerating chamber frozen food temperature variation that thaws.
Fig. 4 is wind circulative defrosting frozen food temperature variation.
Fig. 5 is refrigerator temperature-controlling system structural representation.
Fig. 6 is the mensuration schematic diagram of Thawing Rate.
Fig. 7 is software flow pattern.
Detailed description of the invention
Embodiment 1:
Wind cycle intelligent refrigerator capable of defrosting structure as shown in Figure 1, be divided into multiple refrigerating chamber 101-106 and refrigerating chamber 107, SCM system is independently controlled the temperature of each refrigerating chamber 101-106 and refrigerating chamber 107, between refrigerating chamber 101-106 and refrigerating chamber 107, be provided with thermal insulation separation thermosphere, each refrigerating chamber has a privately owned hermatic door 111-116, all refrigerating chambers have a public hermatic door 117, while depositing frozen food to refrigerating chamber 101, first open public hermatic door 117, open again the privately owned hermatic door of refrigerating chamber 101 111, the privately owned hermatic door 112-116 of other refrigerating chamber 102-106 does not open, reducing cold leaks.Refrigerating chamber, refrigerating chamber and outcase of refrigerator are respectively arranged with temperature sensor, and they are connected the temperature of measuring respectively refrigerating chamber, refrigerating chamber and outcase of refrigerator with single-chip microcomputer.Between each refrigerating chamber and refrigerating chamber, be connected with intake stack 131-136 and return air duct 151-156, magnetic valve 121-126, magnetic valve 141-146 and air pump 161-166 are housed on pipeline.Magnetic valve 121, magnetic valve 141 and air pump 161 are controlled in single-chip microcomputer grouping, thereby control air circulates between refrigerating chamber 107 and refrigerating chamber 101, reach the object that control refrigerating chamber 107 heats slowly flow into refrigerating chamber 101, realize frozen food and complete slowly and thaw at user's subscription time, other refrigerating chamber 102-106 similarly.
Screen pack is equipped with at air inlet, intake stack and the return air duct air outlet place of intake stack and return air duct, prevents that foreign matter from entering pipeline, not shown in FIG..Wind pipe is connected electric swinging air port 171-176 with intake stack end, make refrigerating chamber and temperature of refrigerating chamber even, and heat exchange is abundant.Intake stack 151-156 and return air duct 131-136 have double-decker, and inner layer pipe can disassembly, cleaning, prevent bacteria breed.The intake stack 151-156 of refrigerating chamber is positioned at the bottom of refrigerating chamber, and the return air duct 131-136 of refrigerating chamber is positioned at the top of refrigerating chamber.The intake stack 131-136 of refrigerating chamber is positioned at the top of refrigerating chamber, and the return air duct 151-156 of refrigerating chamber is positioned at the bottom of refrigerating chamber.Higher temperature gas rises naturally, and lower temperature gas declines naturally, is conducive to abundant heat exchange, and its variations in temperature is as shown in Fig. 4 wind circulative defrosting frozen food temperature variation.Other refrigerating chamber 102-106 be connected with the pipeline of refrigerating chamber 107 with refrigerating chamber 101 be connected with the pipeline of refrigerating chamber 107 similar, no longer repeated description, 122-126 not shown in FIG., 132-136,142-146,152-156,162-166 and 172-176.
The control method of wind cycle intelligent refrigerator capable of defrosting comprises the following steps:
1) SCM system records the outer room temperature variation of refrigerator;
2) user is in the time that each refrigerating chamber 101-106 puts into until frozen food, and by SCM system input equipment, user sets the reservation of food in each refrigerating chamber and takes the time, and user sets that nature thaws and the ratio of wind circulative defrosting time;
3) speed of SCM system test wind circulative defrosting and the speed of naturally thawing, the time of estimation wind circulative defrosting and the time of naturally thawing, calculates wind circulative defrosting and naturally thaws the time started.As shown in the mensuration schematic diagram of Fig. 6 Thawing Rate, naturally thawing is the refrigeration of closing refrigerating chamber, and the temperature of refrigerating chamber rises naturally, the process that causes frozen food to thaw.Wind circulative defrosting is the heat that absorbs refrigerating chamber by air in intake stack and return air duct circulating frozen chamber, that is to say that refrigerating chamber and refrigerating chamber carry out constant temperature process;
4) SCM system utilizes the outer room temperature change curve prediction of the refrigerator room temperature on the same day of the previous day record to change, and utilizes room temperature and the error of thawing last time on the same day, revises naturally thawing and the start time point of wind circulative defrosting of frozen food;
5) record the error of actual thawing time and reservation thawing time, when thawing evaluation time next time.
embodiment 2:wind cycle intelligent refrigerator capable of defrosting experimental system and experimental result thereof.
The design of refrigerator controller, as shown in Fig. 5 refrigerator temperature-controlling system structural representation.Controller system hardware comprises thermistor (temperature) sensor, amplifying circuit, MUX, single-chip microcomputer, demultplexer, magnetic valve, air pump, button, liquid crystal display, voice module or light emitting diode and buzzer composition.Temperature sensor 1-6 measures the temperature of refrigerating chamber 101-106, and temperature sensor 7 is measured the temperature of refrigerating chamber 107, and temperature sensor 8 is measured the temperature of outcase of refrigerator.Flowing of the cold-producing medium of magnetic valve C1-C6 (not shown in FIG.) control refrigerating chamber 101-106, flowing of the cold-producing medium of magnetic valve C7 (not shown in FIG.) control refrigerating chamber 107, magnetic valve A1, magnetic valve B1 and air pump 1 are controlled air and are flowed (as shown in Figure 1) in intake stack 131 and return air duct 151, reach and control the object that between refrigerating chamber 101 and refrigerating chamber 107, heat transmits.Other refrigerating chamber and refrigerating chamber exchange heat are similarly.
This experimental system is mainly selected following chip I ntel8052AH, ADT7320, DG706 and DM74LS138.The 8052AH of Intel is MCS-51NMOS single-chip 8 8-digit microcontrollers, 32 I/O mouth lines, 3 Timer/Counter, the ROM of 6 interrupt source/4 grade priority 8KB, RAM on 256 chunks.ADT7320 is 16 bit digital temperature sensors, is ± 0.25 DEG C for measuring basis (cold) junction temperature, and temperature range-20 DEG C are to+105 DEG C.ADT7320 is completely in factory calibrated, and calibrates without user.ADG706 is a low voltage CMOS analog multiplexer, built-in 16 single channels.It is according to 4 binary address line A0, A1, A2 and the determined address of A3, and one of Jiang16 road input (S1-S16) switches to public output D.This device provides EN input, is used for enabling or forbidding device.When forbidding, all passages all turn-off.Conducting resistance: 2.5 Ω, conducting resistance flatness: 0.5 Ω, leakage current: 100pA, switch time: 40ns.Experimental system selects 74LS138 as data distributor, and one of two Enable Pins selecting Low level effective are data input pin, and other Enable Pins are placed in significant level.When a gating end (E1) is high level, another two gating ends ((/E2)) and/(E3)) while being low level, the binary coding of address end (A0, A1 and A2) can be translated with low level at output corresponding to Y0 to Y7.Such as: when A2A1A0=110, output Y6 output is low level signal.
The quantity of domestic refrigerator refrigerating chamber, the 3rd refrigerating chamber is used for thawed foodstuff for the third time, and N refrigerating chamber is used for the N time thawed foodstuff, and seven days weekly, within six days, eat frozen food, two refrigerating chambers that thaw every day, need 12 refrigerating chambers altogether.Some families, stay out noon, within 6 days, eats frozen food, and 1 refrigerating chamber that thaws every day, needs 6 refrigerating chambers altogether.The narration as an example of 6 refrigerating chambers example in description embodiment.
Controller system Software for Design.As shown in Fig. 7 software flow pattern, software flow is taking the 3rd refrigerating chamber wherein as example explanation, the flow process of other refrigerating chamber is identical, user puts into appropriate pork, the time of food is taken in setting, different refrigerating chambers, and the difference that user can set is taken the time, it is the storage time of food in refrigerator now that the time of taking food deducts, the storage time of food in wind cycle intelligent refrigerator capable of defrosting: T=T
d+ T
s+ T
r+ T
w.Cooling time T
d, natural thawing time T
s, wind circulative defrosting time T
r, thawing time error T
w, due to the impact of environment temperature, electric power variation, refrigerator doors sealing property and sensor accuracy, thawing time is inaccurate, and our given margin of error is a bit thawed than subscription time in advance, provides in other words thaw point error.
In the freezing stage 1, when T=0, refrigeration is opened, and magnetic valve and the air pump of intake stack and return air duct are closed, and food temperature declines;
The freezing preservation stage 2, T<T
dtime, refrigeration interruption is opened, and refrigerating chamber maintains freezing state, and as shown in the mensuration schematic diagram of Fig. 6 Thawing Rate, SCM system is measured V
21(connect after the closed electromagnetic valve of pipeline of compressor, the speed that the temperature of refrigerating chamber rises naturally, unit is DEG C/h) and V
22(connect after the closed electromagnetic valve of pipeline of compressor, intake stack and return air duct magnetic valve and air pump are opened the speed DEG C/h that freezer temperature rises), calculates nature thawing time T
s, calculate wind circulative defrosting time T
r,, in this stage, except test time, the magnetic valve of intake stack and return air duct and air pump are closed At All Other Times.
Naturally stage 3:T>T thaws
dtime, all closed electromagnetic valves, refrigerating chamber enters nature and thaws, and the heat-barrier material of refrigerator can slowly transmit heat to refrigerating chamber.
Wind circulative defrosting stage 4:T>T
d+ T
stime, cold-producing medium closed electromagnetic valve, intake stack and return air duct magnetic valve and air pump are opened, and refrigerating chamber is by the heat of the absorption of air refrigerating chamber of intake stack and return air duct circulation, freezer temperature, compared with fast rise previous stage, that is to say that refrigerating chamber and refrigerating chamber carry out constant temperature process.T>T
d+ T
s+ T
rtime, food, in frozen state, has thawed.
The pork experiment of thawing.As shown in Fig. 4 wind circulative defrosting frozen food temperature variation, Saturday 9 point, user puts into pork in refrigerating chamber 103, input the time of taking out pork by keyboard, estimate 5 o'clock of Wednesday afternoon take out cooking food, refrigerating chamber 103 is worked, 21 o'clock of Sunday food reach minimum cryogenic temperature, 24 complete nature and thaw and the rate test of wind circulative defrosting, estimation refrigerating chamber nature thawing time and wind circulative defrosting time.According to estimation the 103 wind circulative defrosting times of refrigerating chamber be 10 hours, it is 24 hours according to the natural thawing time of refrigerating chamber 103 of estimation, Tuesday, 24 refrigerating chambers 103 were closed refrigeration, refrigerating chamber 103 enters nature heat absorption thawed state, it is-6.8 DEG C to 12 temperature rises on Wednesday, refrigerating chamber 103 enters wind circulative defrosting state, and wind circulating electromagnetic valve 123, magnetic valve 143 and air pump 163 were opened after five hours, and the temperature of refrigerating chamber 103 and refrigerating chamber 107 is 2.3 DEG C.
In sum, the utlity model has following beneficial effect:
1. the taste of defrosting food and nutrition retain better.From the relatively impact of course of defrosting on pork in appearance, compared with thawing with tradition, the pork myocytolysis degree that intelligence is thawed is less, and muscle fibre spacing is less, and exomysium is more complete, and juice loss is less.In table 1, group 1 is the intelligence experimental group of thawing, and group 2 is the tradition control groups that thaw.Compared with traditional solution cold pork, intelligence is separated cold pork juice loss and has been reduced by 4.38%, and protein loss reduces 0.8712%, and intelligence is thawed and significantly reduced juice loss and protein loss.In a word, wind cycle intelligent thaws and has retained better taste and the nutrition of frozen food.
Table 1 nutritive loss contrast table
。
2. save electric power.On the one hand, because refrigerating chamber is divided into multiplely, each access food is only opened corresponding refrigerating chamber, and cooling gas leakage amount only has original part.On the other hand, the cold of refrigerating chamber is transmitted to refrigerating chamber, and the cold of course of defrosting is recycled.
3. comprehensively measuring and calculating, totle drilling cost slightly declines, and purchasing price improves, and use cost declines, and the user who is applicable to all levels of consumption uses.Wind cycle intelligent refrigerator capable of defrosting improves the quality of frozen food under the condition that does not increase totle drilling cost, ensures kinsfolk's health of user.
In a word; although the utility model has been enumerated above-mentioned preferred embodiment; but should illustrate; although those skilled in the art can carry out various variations and remodeling; unless such variation and remodeling have departed from scope of the present utility model, otherwise all should be included in protection domain of the present utility model.
Claims (11)
1. circulated air refrigerator capable of defrosting, comprises multiple refrigerating chambers and refrigerating chamber, and SCM system is controlled respectively the temperature of each refrigerating chamber, each refrigerating chamber, it is characterized in that, between refrigerating chamber and refrigerating chamber, is connected with return air duct with intake stack.
2. according to circulated air refrigerator capable of defrosting claimed in claim 1, it is characterized in that: the intake stack of refrigerating chamber is connected with the return air duct of refrigerating chamber pipeline, and the return air duct of refrigerating chamber is connected with pipeline with the intake stack of refrigerating chamber.
3. according to circulated air refrigerator capable of defrosting claimed in claim 1, it is characterized in that: on intake stack and return air duct, magnetic valve is housed.
4. according to circulated air refrigerator capable of defrosting claimed in claim 1, it is characterized in that: intake stack and return air duct, one of them is equipped with air pump.
5. according to circulated air refrigerator capable of defrosting claimed in claim 1, it is characterized in that: magnetic valve and air pump on SCM system control intake stack and return air duct, make refrigerating chamber heat slowly flow into refrigerating chamber, frozen food slowly thaws.
6. according to circulated air refrigerator capable of defrosting claimed in claim 1, it is characterized in that: screen pack is equipped with at intake stack and return air duct air inlet, air outlet place.
7. according to circulated air refrigerator capable of defrosting claimed in claim 1, it is characterized in that: the intake stack of refrigerating chamber is positioned at the bottom of refrigerating chamber, below evaporimeter, the return air duct of refrigerating chamber is positioned at the top of refrigerating chamber.
8. according to circulated air refrigerator capable of defrosting claimed in claim 1, it is characterized in that: wind pipe, intake stack end connect electric swinging air port.
9. according to circulated air refrigerator capable of defrosting claimed in claim 1, it is characterized in that: the intake stack of refrigerating chamber is positioned at the bottom of refrigerating chamber, the return air duct of refrigerating chamber is positioned at the top of refrigerating chamber.
10. according to circulated air refrigerator capable of defrosting claimed in claim 1, it is characterized in that: intake stack and return air duct have double-decker, inner layer pipe can disassembly, cleaning.
11. according to circulated air refrigerator capable of defrosting claimed in claim 1, it is characterized in that: each refrigerating chamber has a privately owned hermatic door, all refrigerating chambers have a public hermatic door, when depositing frozen food, first open public hermatic door, open the privately owned hermatic door of specific refrigerating chamber, the privately owned hermatic door of other refrigerating chamber is not opened again.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420298166.1U CN204027126U (en) | 2014-06-06 | 2014-06-06 | Wind cycle intelligent refrigerator capable of defrosting |
| PCT/CN2015/080741 WO2015184997A1 (en) | 2014-06-06 | 2015-06-04 | Intelligent air-circulation thawing refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420298166.1U CN204027126U (en) | 2014-06-06 | 2014-06-06 | Wind cycle intelligent refrigerator capable of defrosting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204027126U true CN204027126U (en) | 2014-12-17 |
Family
ID=52066971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420298166.1U Expired - Fee Related CN204027126U (en) | 2014-06-06 | 2014-06-06 | Wind cycle intelligent refrigerator capable of defrosting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204027126U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034109A (en) * | 2014-06-06 | 2014-09-10 | 广东海洋大学 | Wind circulation intelligent thawing-in refrigerator |
| WO2015184997A1 (en) * | 2014-06-06 | 2015-12-10 | 广东海洋大学 | Intelligent air-circulation thawing refrigerator |
| CN109924249A (en) * | 2019-05-05 | 2019-06-25 | 绍兴市祥泰丰食品有限公司 | A kind of bored thawing apparatus of meat |
-
2014
- 2014-06-06 CN CN201420298166.1U patent/CN204027126U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034109A (en) * | 2014-06-06 | 2014-09-10 | 广东海洋大学 | Wind circulation intelligent thawing-in refrigerator |
| WO2015184997A1 (en) * | 2014-06-06 | 2015-12-10 | 广东海洋大学 | Intelligent air-circulation thawing refrigerator |
| CN104034109B (en) * | 2014-06-06 | 2016-07-20 | 广东海洋大学 | Wind cycle intelligent refrigerator capable of defrosting |
| CN109924249A (en) * | 2019-05-05 | 2019-06-25 | 绍兴市祥泰丰食品有限公司 | A kind of bored thawing apparatus of meat |
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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: 20141217 Termination date: 20180606 |