CN102692939B - Control device for using electric rice cooker to make wine - Google Patents
Control device for using electric rice cooker to make wine Download PDFInfo
- Publication number
- CN102692939B CN102692939B CN201110074162.6A CN201110074162A CN102692939B CN 102692939 B CN102692939 B CN 102692939B CN 201110074162 A CN201110074162 A CN 201110074162A CN 102692939 B CN102692939 B CN 102692939B
- Authority
- CN
- China
- Prior art keywords
- circuit
- control module
- voltage
- electric cooker
- temperature
- Prior art date
- 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
Links
Landscapes
- Cookers (AREA)
- Control Of Resistance Heating (AREA)
Abstract
The invention discloses a method for using an electric rice cooker to make wine and a control module thereof. By using the method and the control module of the invention, an insulation problem during a household wine brewing process can be solved. An electric heating function of the electric rice cooker is used. A specially-designed electronic thermostatic control module is added and is connected in series in an original alternating current circuit of the electric rice cooker so as to reduce heating power of the electric rice cooker, control on or off of a heating circuit and make an internal temperature keep at a constant index which is suitable for the wine brewing. The electronic thermostatic control module comprises a voltage stabilizing circuit, a temperature sensing circuit, a voltage comparison circuit, a contactless time delay switch circuit and the like. A thermistor is used to acquire temperature information and convert the information into the voltage. The voltage is output after comparison through using a voltage comparator. The on or off of the contactless time delay switch circuit formed by a thyristor is controlled. The control module only has two terminals which are connected with an external circuit. The temperature sensor is integrated with a circuit board of the module. Structural integrity is good. The control module can be conveniently installed on a bottom of the electric rice cooker.
Description
One. technical field
Patent of the present invention relates to a kind of temperature-control circuit of electric heater unit, to be connected in alternating circuit as electronic switch use, to belong to electric automatization field together with load.Temperature value for wine brewing process is held, also relevant to biotechnology.
Two. background technology
Electrical heated appliance in family is very universal, and as electric cooker, electric heater, electric kettle, electromagnetic oven, electric blanket etc., the life of people is also therefrom subject to facility.Although electric heating appliance is numerous, still there are some needs the affairs of the operation of constant temperature not have corresponding electric heating appliance, as family's brew rice wine, flour fermentation etc.Usually, these work rely on experience completely, utilizes the heat produced in sweat to carry out natural thermal insulation, reach making object.But this natural thermal insulation is difficult to control effectively, especially under fermentation initial stage and comparatively extreme bad border, make difficult quality guarantee, lack the more bad assurance quality of people of making experience, occur that even microbial contamination causes eating.Quality and the fermented bacterium of fermentation have outside relation, also closely related with the temperature of sweat.During as family's brew fermented glutinous rice, when real attenuation temperature obviously exceed its suitableeest fermentation temperature time, the enzyme system activity of fermented bacterium changes, thus causes the starch in rice to be difficult to be decomposed into small molecular sugar and be hydrolyzed to ethanol further.A large amount of generations of the secondary species such as lactic acid and acetic acid can be caused on the contrary, thus affect the local flavor of fermented glutinous rice.If temperature controls proper, not only can ensure fermented glutinous rice local flavor, effectively can also suppress the growth of miscellaneous bacteria.In fact the temperature of brewing process is grasped is a key factor of brew quality, if utilize electric heating appliance to control brew temperature pointedly, then no matter has, without the personnel of brew experience, can be easy to produce food desirable separately.
Certainly, family does not need make wine every day yet, just improves taste once in a while.Just because of this, market does not have dedicated electric-thermal utensil sell yet, cause a vacancy of home food making apparatus.At present, the household electrical appliance of many families are constantly updated, and if any a lot of electric cooker, because its function backwardness, inner bag coating damage, dirt be serious etc., multiple non-mass reason is eliminated, and its heating function, security performance etc. all do not have defect, abandon and seem that some is unfortunate, shelve and do not want to take the trouble.The structure of electric cooker in fact determining it there is good heat-insulating property and security performance, through suitably reequiping, a constant temperature wine brewing tank can be become completely.I reequips several, and result of use is good, is popular.The past heritage of idle family are utilized, and key is simple to operate, and dependable performance is economical and practical.
Present food security is also the problem of an outwardness, because multiple experience makes oneself really dare not flatter the many alcohol products on market, and the sensation that the rice wine of oneself brew edible is never excessively uncomfortable.If visible family oneself brew rice wine, its hygienic quality is more prone to be guaranteed.
Basis involved by this patent is exactly the constant temperature control circuit module and the method that utilize electric cooker to repack wine brewing tank into, is applicable to family's alcoholic, vinegar processed, food fermentation etc., is also applicable to the occasion such as laboratory Yeast Cultivation, the cultivation of edible fungi kind.
Family's brew rice wine has long history among the people, and the rice wine of institute's brew is the food that a kind of common people like.Except rice wine, also have other alcohol food many.Be equipped with a constant temperature in family and send out alcohol tank, quality of the life can be improved to a certain extent.Therefore, the apparatus and method involved by this patent must have good promotion prospect.
Three. summary of the invention
The heating power, the holding temperature that present invention is directed at electric cooker control, designed by oneself there is cramped construction, special module easy for installation is connected in primary circuit.From technological layer, there is following content characteristic:
On the basis of original electric rice cooker circuit, insert an electronic control module, be cascaded with the original electric heater of electric cooker, heat-insulation switch, as shown in Figure 1, to reduce heating power, control the on-off of heater circuit, the temperature of constant electric cooker inner chamber.Electronic control module by current limliting power-supply circuit, mu balanced circuit, temperature sensing circuit, voltage comparator circuit, the compositions such as Contactless delay switch circuit.Obtain temperature information by thermistor and convert voltage to, then by exporting after fixed value voltage comparer, controlling the on-off of the Contactless delay switch be made up of thyristor.The conduction angle of thyristor is set at about 90 °, preferably controls between 70 ° ~ 110 °, makes it possible to take into account module self power taking and electric cooker heats two needs, has automatic electricity getting function from the loop of series load.The operating voltage of electronic control module self relies on capacitance current-limiting, then obtains after voltage stabilizing after filtering.The composition such as temperature sensing, control circuit integrative-structure, is integrated on one piece of circuit board, the outer company headquarters of control module divide only have two terminals, position fixed screw holes is held concurrently in a heat conduction.There is above distinctive electronic control module electrical schematic diagram as shown in Figure 2.Thyristor T wherein
2can be unidirectional thyristor also can be bidirectional thyristor.Whole electronic control module is installed on the heating plate lower curtate heating column of electric cooker, is fixed together with original heat-insulation switch.As shown in Figure 3, its installation site as shown in Figure 4 for the top view of electronic control module and bottom view.
Electronic control module has the effect reducing electric heating appliance heating power, is realized, be generally down to about 1/4th of former heating power by the method controlling turn on thyristors angle.Be made with two objects like this: one be used to slow down energising during the speed that heats up, temperature is more tended to be steady; Two is each cycle at alternating current, makes thyristor all reserve the time period of cut-off, is used for as module power itself, as the t in accompanying drawing 5 when this section
1to t
2time period.This time period is by R
8, C
4and T
1the Time-delayed trigger of composition completes (with reference to accompanying drawing 2), T
1it is bidirectional trigger diode.This is the general trigger circuit of a two-way brilliant lock, when the alternating voltage along with input increases, passes through R
8to timing capacitor C
4charging, C
4upper voltage rise.Work as C
4on voltage when rising to about 33V, bidirectional trigger diode T
1breakdown, timing capacitor C
4in stored electric charge pass through T
1, thyristor T
2trigger end discharges, thyristor T
2be opened, as the t in accompanying drawing 5
2to t
3time period.During alternating voltage zero-crossing, thyristor is closed again.The feature that the present invention is different from general circuit working method controls at about 90 ° by the conduction angle of thyristor, R in design
8, C
4parameter is defined as 240k Ω, 0.1 μ F respectively.If by R
8be taken as 200k Ω also can very normally work, just passable near this reference value in using as long as actual.Like this, the time of Time-delayed trigger is about 1/4th cycles of alternating current, namely about 5 milliseconds.Owing to have employed the method at this control turn on thyristors angle, electronic control module can be connected in heating circuit, both can realize the effect of switch, the voltage needed for self circuit working can be obtained again.Power itself for electronic control module circuit adopts capacitance current-limiting mode to obtain.Because of capacitor operationally not consumption of electric power, make module oneself power consumption less, thermal value is less, reliable operation.
The advanced alternating voltage of electric current on current limiting capacitance 90 °, adding in the present invention controls at about 90 ° by turn on thyristors angle, like this, that is electric current can be provided by current limiting capacitance in 180 ° in the half period of alternating current, the time availability of supply current reaches the highest, and the capacity of current limiting capacitance can be down to minimum.Under alternating voltage and heated condition on current limiting capacitance the phase relation of electric current as shown in the squiggle of Fig. 5.Actual current limiting capacitance specification is taken as 0.1 μ F/630V, like this, while providing enough working currents for module self, can also reserve certain allowance, ensures also can normally work when line voltage decreases.The foundation that electric capacity is determined is as follows:
Limiting capacitor capacitive reactance is:
In half period, on electric capacity, the effective value of electric current is
average current on average to the whole cycle is about 3.4mA, and the electricity consumption of enough control circuits needs.Below namely adopt the reason of capacitance current-limiting method, if adopt resistance current limliting inherently to cause oneself power consumption excessive, directly affect thermometric effect, damage module even.According to other power circuits, then cost increases, and volume increases, and is not desirable selection.
The output of voltage comparator LM393 is open collector form, directly can connect the thyristor gating circuit R containing Time-delayed trigger function
8, C
4and T
1.Diode D
4be between alternating voltage negative half-cycle, short circuit timing capacitor, makes it cannot to trigger thyristor more open-minded.Namely, between alternating voltage negative half-cycle, thyristor is in closed condition.Meanwhile, diode D
4introducing, make voltage comparator output terminal to be coupled with reverse voltage, protect voltage comparator and exempt from damage.This processing mode is also the feature that the present invention is different from other control circuits.Also show thus, use bidirectional thyristor to be the same with the effect of use unidirectional thyristor.
The position fixing part part of module and heat transfer component are integrated, and are positioned on a corner of circuit board, and making him can directly be screwed in electric cooker heating plate with screw is on the heating column that arranges of heat-insulation switch, as shown in Figure 2.This processing mode makes simple installation, and heat-conductive characteristic is reliable, and the perception velocities of temperature variation is fast and reliable.
The temperature passed over by thermistor perception conducting-heat elements, converts the change of voltage to, then is exported by voltage comparator LM393.When temperature is lower than setting value, comparer delivery outlet is opened a way, and thyristor is open-minded according to predetermined conduction angle, and electric cooker is in heated condition.Be placed in by the food that heats and temperature-measuring part the both sides of electric hot tray, heat diffusion almost symmetry, but the thermal capacity of temperature sensing part is little, and its temperature can change sooner.When temperature exceedes setting value, comparer output low level, close thyristor, electric cooker no longer heats.But due to the thermal inertia transmitted, the temperature of temperature sensing part also can continue to rise within a certain period of time, and Here it is, and voltage comparator circuit does not arrange hysteretic characteristic, and working control still has the reason of hysteresis effect.Because the thermal capacity of heated food is comparatively large, his temperature fluctuation is less, is steady state value substantially.
The original heat-insulation switch of electric cooker is still used as second class protection, and the reason such as prevent control module work not normal causes the appearance of dangerous temperature.
Therefore, the present invention has novelty from the structure using cryogenic temperature control module of equipment, method of modifying, and heated food can accomplish ± 0.5 DEG C within temperature fluctuation range.Because the temperature of insulation is low, actual power consumption amount is less, is generally no more than the power consumption of 10W electricity device.
Four. accompanying drawing explanation
1. the electrical connection diagram explanation of electronic control module and former electric rice cooker circuit
Electrical schematic diagram shown in accompanying drawing 1 shows the access way of electronic control module in original circuit, is in series with heat-insulation switch, well heater.Original two pilot lamp of electric cooker are connected on the forward and backward of electronic control module respectively, as power light and burner on light, or connect pilot lamp by other desired mode.
2. the electrical schematic diagram explanation of electronic control module
Accompanying drawing 2 is electrical schematic diagrams of electronic control module, and belong to a more common class circuit, it is relatively simple for structure, can be described as the most succinct, reliable.The parts such as circuit comprises current limliting power-supply circuit, mu balanced circuit, temperature sensing circuit, voltage comparator circuit, Contactless delay switch circuit.R
9the heating plate of electric cooker, as the load of control circuit, not included in control module.C
3and D
1, D
2, R
7composition capacitor current-limiting type half-wave rectifying circuit, provides DC voltage to control circuit; C
2, R
6, C
1, D
3form filter regulator circuit; R
1, R
2, R
t, R
4, R
5, and IC
1Acomposition bridge voltage comparator circuit, wherein R
tbe thermistor, obtain temperature information by him, the ratio between resistance determines stationary temperature value; R
8, C
4and T
1it is conduction angle control circuit; T
2be thyristor, be responsible for energising and power-off, namely a contactless electronic beam switch of well heater; Diode D
4for closing thyristor in the alternating voltage negative half-cycle time, protection voltage comparator output terminal exempts to bear and adds voltage and damage simultaneously.What technical essential was device parameters arranges aspect.
3. Fig. 3 is top-level view and the bottom view of electronic control module.The conducting strip of control module is welded on the bottom of wiring board with sizeable Wiring nose, thermistor is clipped in the intermediate plate of Wiring nose again.In order to ensure Electrical Safety, between thermistor and Wiring nose intermediate plate, be lined with a slice heat-conducting insulation material.Control temperature trimmer potentiometer is positioned at the top of wiring board.
4. the installation site figure explanation of electronic control module bottom electric cooker
A heating column is arranged at the bottom of all kinds of electric cooker, and be originally in order to fixing heat-insulation switch, his surface can reflect the temperature of heating plate well.Therefore, with screw, the conducting-heat elements of electronic control module is directly pressed on this heating column, can temperature information be obtained, can electronic control module be fixed again.Accompanying drawing 4 is bottom view of electric cooker inside, shows the installation site of electronic control module, and what be distributed with multiple element above is electronic control module, and he rests above the stator of heat-insulation switch, is fixed on the heating column of heating plate together with heat-insulation switch.
5. accompanying drawing 5 is the current waveform profile under voltage waveform between thyristor anode and negative electrode and heated condition on current limiting capacitance.T on voltage curve
0~ t
1and t
1~ t
2time period magnitude of voltage is non-vanishing, illustrates that thyristor does not have conducting; t
2~ t
3time period magnitude of voltage is zero, and thyristor is in conducting state.The turn on thyristors time was approximately for 1/4th cycles.Voltage, current curve contrast mutually, can reflect phase relation between the two, before turn on thyristors, current limiting capacitance have substantially complete semiperiod current waveform, illustrate and be at that time in maximum power supply capacity.
6. Fig. 6 is control module wiring board Wiring Reference figure, adopts single sided board to connect up in figure.
Five. embodiment
According to the determined circuit structure of the present invention, the former rated power of heater-combining, selected thyristor rated current parameters should be greater than the rated current of former electric cooker.Such as the electric cooker of 700W, its rated current is 3.2A, then should select the thyristor of more than 5A.Thyristor is withstand voltage to be seen that 400V is withstand voltage theoretically and conforms to requirement, but in order to improve opposing surge voltage ability, as well withstand voltage with 600V.Semiconductor thermistor adopts 10k small-sized round bead shape or columned, is convenient to be fixed on the conducting-heat elements of control module.Preferably fill heat-conducting silicone grease around thermistor body, strengthen heat transfer effect.Resistance R
7and R
8nominal power be not less than 0.5W.
Refiting scheme corresponding to the present invention, should guarantee Electrical Safety.First, electric cooker itself must have good electrical safety.When control module is installed, except conducting strip, other parts of wiring board must and electric cooker housing between have good insulation quarantine measures.The wire connected should add insulation protective jacket.Control module wiring board adopts the plate substrate material with good insulating capacity, as epoxy resin board base etc.In control module circuit board line layout, the spacing of conducting strip and circuit must be greater than 2mm.Control circuit has been communicated with AC network circuit, is not with thermoelectric operation during maintenance.
In reconfiguration heater circuit process, terminals of heat-insulation switch can be disconnected, series system Access Control module.Meanwhile, preferably remove the connecting line that switch hotted plate by electric cooker, prevent from making temperature too high because of unexpected.After electric cooker circuit is reequiped, energizing test, burner on light can be lighted in gap.Finally, by changing the variable resistor R in module
1resistance, can finely tune constant temperature angle value, and temperature is set up numerically a certain in 27 ~ 32 DEG C.If need higher temperature, suitably R can be reduced
2resistance.If temperature will be regulated in outside, with by after a resistant series potentiometer, R can be connected in parallel on
2on, general family is not advised adopting this scheme.If procedure operation will be carried out to temperature, then need to increase low-power scm in the module and help process.After repacking, just become a ferment at constant temperature tank.
In control module, current limiting capacitance parameter is taken as 0.1 μ F/630V with 220V/50Hz AC network for design basis, and therefore this electronic control module is applicable to the electric heating appliance that 220V/50Hz AC network is powered.Be applicable to the repacking of the not electric heating appliance of needs full power operation.
The brew of rice wine:
By the rice that boils after cooling, put into sizeable container, stir with appropriate saccharomycete, compacting, be positioned over together with container in the inner bag of this wine brewing electric cooker, then the insulation that is energized.If at these some insulation materials of electric cooker top cover, power consumption can be reduced further.Later without any need for operation, namely direct-edible after 24 hours.The brew time is longer, then alcohol concentration is higher.
Except brew rice wine, all right fermented flour etc., method of operating is similar with wine brewing, and just during flour fermentation, volume can expand, and needs to reserve enough large space in advance.
Claims (3)
1. the control device utilizing electric cooker to make wine, it is characterized in that: in alternating circuit, additional electron control module and the original electric heater of electric cooker, heat-insulation switch are cascaded, to reduce heating power, control the on-off of heater circuit, the temperature of constant electric cooker inner chamber; Electronic control module by current limliting power-supply circuit, mu balanced circuit, temperature sensing circuit, voltage comparator circuit, Contactless delay switch circuit form; Obtain temperature information by semiconductor thermistor and convert voltage to, then by exporting after fixed value voltage comparer, controlling the on-off of the Contactless delay switch be made up of thyristor; The conduction angle of thyristor is set between 70 ° ~ 110 °; The operating voltage of electronic control module self relies on capacitance current-limiting, then obtains after voltage stabilizing after filtering; Temperature sensing, control circuit composition integrative-structure, is integrated on one piece of circuit board, and the outer company headquarters of control module divides and only has two terminals, and heat exchange sheet and pilot hole unite two into one; Bottom the heating plate that whole electronic control module is installed on electric cooker on heating column, be fixed together with original heat-insulation switch.
2. the control device utilizing electric cooker to make wine according to claim 1, utilize electric cooker to reequip or increase brewing functional, in the alternating circuit that electric cooker is original add one can with the independent electronic control module of load in series work, control module only has two external cabling terminals.
3. the control device utilizing electric cooker to make wine according to claim 1, by controlling the conduction angle of thyristor, relative to the ground wire of control circuit, be just likely triggered conducting between alternating voltage positive half period.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110074162.6A CN102692939B (en) | 2011-03-25 | 2011-03-25 | Control device for using electric rice cooker to make wine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110074162.6A CN102692939B (en) | 2011-03-25 | 2011-03-25 | Control device for using electric rice cooker to make wine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102692939A CN102692939A (en) | 2012-09-26 |
| CN102692939B true CN102692939B (en) | 2015-02-11 |
Family
ID=46858476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110074162.6A Expired - Fee Related CN102692939B (en) | 2011-03-25 | 2011-03-25 | Control device for using electric rice cooker to make wine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102692939B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103385295A (en) * | 2013-06-29 | 2013-11-13 | 苏州吉康电子科技有限公司 | Yoghourt fermentation case with display apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59212925A (en) * | 1983-05-18 | 1984-12-01 | Matsushita Electric Ind Co Ltd | Heating device |
| CN2286583Y (en) * | 1997-03-07 | 1998-07-29 | 西安佳宝电气有限公司 | Multifunction electric cooker |
| CN2744691Y (en) * | 2004-09-01 | 2005-12-07 | 钟神耀 | Electric cooker for making wine and fermented food |
| CN200990025Y (en) * | 2006-09-07 | 2007-12-12 | 李和发 | Electric heating carpet temperature controller |
| CN101096124A (en) * | 2006-06-30 | 2008-01-02 | 陈东明 | Temperature control system for injection machine |
-
2011
- 2011-03-25 CN CN201110074162.6A patent/CN102692939B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59212925A (en) * | 1983-05-18 | 1984-12-01 | Matsushita Electric Ind Co Ltd | Heating device |
| CN2286583Y (en) * | 1997-03-07 | 1998-07-29 | 西安佳宝电气有限公司 | Multifunction electric cooker |
| CN2744691Y (en) * | 2004-09-01 | 2005-12-07 | 钟神耀 | Electric cooker for making wine and fermented food |
| CN101096124A (en) * | 2006-06-30 | 2008-01-02 | 陈东明 | Temperature control system for injection machine |
| CN200990025Y (en) * | 2006-09-07 | 2007-12-12 | 李和发 | Electric heating carpet temperature controller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102692939A (en) | 2012-09-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206164881U (en) | Electric heating equipment and electric rice cooker based on pulsewidth modulation | |
| CN103202663B (en) | Water dispenser energy-saving control method and water dispenser control circuit | |
| CN102038428B (en) | Pressure and non-pressure combined electric rice cooker and control method thereof | |
| CN108567312A (en) | Porridge-cooking control method and cooking apparatus for cooking apparatus | |
| CN109343383A (en) | Cooking appliance and control method thereof | |
| CN103230218A (en) | Wireless miniature high voltage electric cooker and control method thereof | |
| CN102692939B (en) | Control device for using electric rice cooker to make wine | |
| Tanrıseven et al. | ERINOKS: Energy-efficient induction-based food processing for optimized kitchens | |
| CN201337333Y (en) | Electric cooker and control circuit thereof | |
| CN201504330U (en) | Electric heater | |
| CN103705104A (en) | Frequency-conversion electric heating pot | |
| CN208851179U (en) | A kind of low temperature simmers pot | |
| CN206541210U (en) | A kind of thermostatically-controlled equipment | |
| CN2116427U (en) | Electronic temp. -controlled energy-saving multifunctional electric cooker | |
| CN2627953Y (en) | Multipurpose electric heating cooker | |
| CN201861412U (en) | Pressure and non-pressure combined electric rice cooker | |
| CN2422905Y (en) | Thermal medium type electric heating cooker | |
| Newborough et al. | Energy‐conscious design improvements for electric hobs | |
| CN107242786A (en) | A kind of energy-saving environment-friendly hot water kettle | |
| CN2840864Y (en) | Intelligent split electric stewing-pot | |
| JP3029584U (en) | Electric kettle equipped with automatic heat retention control circuit device | |
| CN103836654A (en) | Digital gas pot heating device and control method thereof | |
| CN2331268Y (en) | Automatic control device of electric pressure cooker | |
| CN213640525U (en) | High-efficiency energy-saving electric cooker | |
| CN211722833U (en) | Heating circuit and electric cooker with cooking and frying functions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20150211 Termination date: 20170325 |