CN111503666B - Control method of card-swiping type microwave oven special for hospital - Google Patents
Control method of card-swiping type microwave oven special for hospital Download PDFInfo
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- CN111503666B CN111503666B CN202010321448.9A CN202010321448A CN111503666B CN 111503666 B CN111503666 B CN 111503666B CN 202010321448 A CN202010321448 A CN 202010321448A CN 111503666 B CN111503666 B CN 111503666B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/02—Stoves or ranges heated by electric energy using microwaves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
- F24C7/081—Arrangement or mounting of control or safety devices on stoves
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F17/00—Coin-freed apparatus for hiring articles; Coin-freed facilities or services
- G07F17/0064—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for processing of food articles
- G07F17/0078—Food articles which need to be processed for dispensing in a hot or cooked condition, e.g. popcorn, nuts
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/66—Circuits
- H05B6/68—Circuits for monitoring or control
- H05B6/687—Circuits for monitoring or control for cooking
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Abstract
The invention discloses a control method of a special card-swiping microwave oven for hospitals, which comprises the microwave oven, wherein a control element is arranged on the microwave oven, and comprises a control panel, a door switch, a time delay relay, an alternating current contactor and a card swiping device; which comprises the following steps: presetting the working time of the microwave oven each time through a time delay relay; putting food into a microwave oven, closing the door, swiping a card, and electrifying a control panel to work; the time delay relay is electrified to work through the action of the control panel; the alternating current contactor is electrified to work through the action of the time delay relay; the microwave oven is electrified to work through the action of the alternating current contactor; and judging whether the working time of the microwave oven reaches the working time in real time, if so, stopping the microwave oven and taking out food, and if not, taking out the food midway, namely, passively stopping the microwave oven and returning to the step of putting the food into the microwave oven, closing the door and swiping the card. The invention has the advantages of saving energy, avoiding the damage of the microwave oven caused by overheating and empty burning after being used for a long time and ensuring the service life of the microwave oven.
Description
Technical Field
The invention relates to the technical field of microwave oven control, in particular to a control method of a card-swiping type microwave oven special for hospitals.
Background
In recent years, with the progress of science and technology of human society, the medical care level is continuously improved, and the requirement of providing a more convenient and comfortable hospitalization environment for patients becomes a whole society, so that the microwave oven is used as a convenience measure in domestic hospitals.
At present, patients in partial departments of hospitals have the characteristics of serious illness, rapid change of illness, more family members accompanying people, more nasal feeding patients, long hospitalization time and the like, for example, neurosurgery provides a microwave oven in a ward to meet the living demand of a small number of patients with multiple meals for heating food and provide convenience for the patients, but the microwave ovens used by the patients and the families have certain randomness and non-normalization, for example, the microwave ovens are frequently used for cooking soup, cooking meal, randomly adjusting the working time and the like, so that the maintenance times, the rejection rate and the warning times of the microwave ovens caused by overlong heating time of the microwave ovens frequently occur.
The coin-operated microwave oven and the card-swiping microwave oven are proposed to solve the problems, but the disputes caused by the charging problem of the coin-operated microwave oven are frequent, so that the dissatisfaction of patients is easily caused, and the economic burden of the patients is increased; at present, the card swiping microwave oven provided for free is also provided, and although the charging problem is avoided and part of problems are solved, the situation that the card swiping is continuously carried out by a patient or family members still exists, so that the microwave oven is damaged due to long-term use, overheating and even idle burning is caused, the electric energy consumption is large, the service life of the microwave oven is shortened, and great potential safety hazards exist.
Therefore, a new microwave oven control technology is needed to overcome the deficiencies of the prior art, and becomes a technical problem to be solved.
Disclosure of Invention
The invention aims to provide a control method of a special card-swiping type microwave oven for hospitals, which is energy-saving, can avoid the damage of the microwave oven caused by overheating and idle burning after being used for a long time and can ensure the service life of the microwave oven.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a control method of a card-swiping type microwave oven special for hospitals comprises a microwave oven; the control element is used for controlling the microwave oven to work and comprises a control panel, a door switch, a time delay relay, an alternating current contactor and a card reader, and the control panel is electrically connected with the card reader;
the control panel is provided with a control panel change-over switch with a control panel static contact, a control panel normally closed contact and a control panel normally open contact, and also provided with a control panel first node and a control panel second node;
the delay relay is provided with a relay switch with a relay static contact, a relay normally closed contact and a relay normally open contact, and is also provided with a relay first node and a relay second node;
the alternating current contactor is provided with a contactor change-over switch with a contactor static contact, a contactor normally closed contact and a contactor normally open contact, and also provided with a contactor first node, a contactor second node and a contactor third node;
wherein, the first node of control panel passes through a first electric wire warp door switch is connected with the commercial power live wire, the control panel second node is connected with the commercial power zero line through a second electric wire, the control panel stationary contact is connected with the commercial power zero line through a third electric wire, the control panel normally open contact is connected with relay first node, relay stationary contact through a fourth electric wire, fifth electric wire respectively, the relay second node is connected with the commercial power live wire through a sixth electric wire, the relay normally open contact is connected with contactor first node through a seventh electric wire, the contactor second node is connected with the commercial power live wire through an eighth electric wire, the contactor third node, contactor stationary contact are connected with commercial power live wire and zero line through a ninth electric wire, tenth electric wire respectively, state contactor third node, contactor contact are connected with commercial power live wire and zero line through an eleventh electric wire respectively, The twelfth wire is connected with the microwave oven;
it also includes the following steps:
s1: presetting the working time of the microwave oven each time through a time delay relay;
s2: putting food into a microwave oven, closing the door, swiping a card, and electrifying a control panel to work;
s3: the time delay relay is electrified to work through the action of the control panel;
s4: the alternating current contactor is electrified to work through the action of the time delay relay;
s5: the microwave oven is electrified to work through the action of the alternating current contactor;
s6: and judging whether the working time of the microwave oven reaches the working time in real time, if so, stopping the microwave oven and taking out the food, otherwise, if taking out the food midway, stopping the microwave oven passively and returning to the state of swiping the card of the food to be put in step S2.
In step S1, the control board presets the interval time between the two uses of the microwave oven and the maximum time of each operation of the microwave oven;
when the microwave oven needs to be started again after power failure, if the power failure time of the microwave oven is longer than the interval use time, the card swiping is effective, the microwave oven can be electrified for reuse, and if the power failure time of the microwave oven is shorter than or equal to the interval use time, the microwave oven is in a protection state, and the card swiping is ineffective;
after the microwave oven is effectively restarted by swiping the card each time, the control panel automatically resets the working time of the microwave oven and recalculates the working time.
The working time of the microwave oven is 3 minutes each time, the interval time between the two uses of the microwave oven is 30 seconds, and the maximum time of the microwave oven in each operation is 5 minutes.
Compared with the prior art, the invention has the following beneficial effects:
the invention is arranged by adopting a card swiping combination microwave oven corresponding control method, in the using process, the working time of each time of the microwave oven is preset and controlled through a time delay relay, after food is put into the microwave oven to be closed and effectively swiped to enable the microwave oven to be electrified and work, a control program can judge whether the working time of the microwave oven reaches the working time set by the microwave oven each time or not in real time, if so, the microwave oven stops working and takes out the food, if not, the microwave oven door is pulled open in the working process of the microwave oven, the door switch is disconnected to enable the microwave oven to be immediately powered off and stop working, the microwave oven can work again after the microwave oven is closed again and swiped through the card swiping device again, otherwise, the microwave oven does not work, the door switch is combined with the card swiping device to control the restart of the microwave oven after the power off, and the problem of idle burning caused by the power on working after the microwave oven is closed, therefore, the service life of the microwave oven is ensured, and energy-saving control is further realized.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1 is a flowchart illustrating a first embodiment of the present invention;
FIG. 2 is a flowchart of the operation of the second embodiment of the present invention;
FIG. 3 is a circuit schematic of the present invention in a power down state;
fig. 4 is a circuit schematic of the present invention in the power-on state.
Description of reference numerals: 1. microwave oven, 2, control element, 21, control panel, K, door switch, 23, time delay relay, 24, ac contactor, 25, card reader, 101, control panel stationary contact, 102, control panel normally closed contact, 103, control panel normally open contact, K1, control panel change-over switch, 104, control panel first node, 105, control panel second node, 201, relay stationary contact, 202, relay normally closed contact, 203, relay normally open contact, K2, relay change-over switch, 204, relay first node, 205, relay second node, 301, contactor stationary contact, 302, contactor normally closed contact, 303, contactor normally open contact, K3, contactor change-over switch, 304, contactor first node, 305, contactor second node, 306, contactor third node, 3, first wire, 4, second wire, 5, third wire, 6, contactor third wire, 6, A fourth wire, 7, a fifth wire, 8, a sixth wire, 9, a seventh wire, 10, an eighth wire, 11, a ninth wire, 12, a tenth wire, 13, an eleventh wire, 14, a twelfth wire, L, a live wire of mains supply, N, a neutral wire of mains supply.
Detailed Description
The first embodiment is as follows:
referring to fig. 1, 3 and 4, a control method of a card-swiping type microwave oven special for hospitals comprises a microwave oven 1; the control element 2 for controlling the microwave oven 1 to work is arranged on the microwave oven 1, the control element 2 comprises a control panel 21, a door switch K, a time delay relay 23, an alternating current contactor 24 and a card reader 25, and the control panel 21 is electrically connected with the card reader 25;
the control board 21 is provided with a control board switch K1 with a control board static contact 101, a control board normally closed contact 102 and a control board normally open contact 103, and is also provided with a control board first node 104 and a control board second node 105;
the delay relay 23 is provided with a relay switch K2 with a relay static contact 201, a relay normally closed contact 202 and a relay normally open contact 203, and is also provided with a relay first node 204 and a relay second node 205;
the alternating current contactor 24 is provided with a contactor switching switch K3 with a contactor static contact 301, a contactor normally closed contact 302 and a contactor normally open contact 303, and is further provided with a contactor first node 304, a contactor second node 305 and a contactor third node 306;
wherein, the first control panel node 104 is connected with the live wire L through the door switch K via a first wire 3, the second control panel node 105 is connected with the live wire N via a second wire 4, the stationary control panel contact 101 is connected with the live wire N via a third wire 5, the normally open control panel contact 103 is connected with the first relay node 204 and the stationary relay contact 201 via a fourth wire 6 and a fifth wire 7, respectively, the second relay node 205 is connected with the live wire L via a sixth wire 8, the normally open relay contact 203 is connected with the first contactor node 304 via a seventh wire 9, the second contactor node 305 is connected with the live wire L via an eighth wire 10, the third contactor node 306 and the stationary contactor contact 301 are connected with the live wire L and the neutral wire N via a ninth wire 11 and a tenth wire 12, respectively, the third node 306 of the contactor and the normally open contact 303 of the contactor are respectively connected with the microwave oven 1 through an eleventh electric wire 13 and a twelfth electric wire 14; so that the microwave oven 1 and the mains supply form a state of working or non-working under the control of the third node 306 of the contactor and the normally open contact 303 of the contactor;
the control method of the special card-swiping type microwave oven for hospitals further comprises the following steps:
s1: presetting the working time T1 of the microwave oven 1 each time through the time delay relay 23;
s2: putting food into the microwave oven 1, closing the door and swiping card, and electrifying the control panel 21 for working;
s3: the control panel 21 acts to electrify the delay relay 23 to work;
s4: the alternating current contactor 24 is electrified to work through the action of the time delay relay 23;
s5: the microwave oven 1 is electrified to work by the action of the AC contactor 24;
s6: judging whether the working time of the microwave oven 1 reaches the working time T1 in real time, if so, automatically stopping the microwave oven 1 and taking out food, if not, taking out the food midway, namely, passively stopping the microwave oven 1 and returning to the state of swiping the card of the food to be put in step S2, if the food is taken out in advance, putting the food again, namely, belonging to the state of swiping the card of the food to be put in and restarting, wherein, when the microwave oven 1 swipes the card again, the working time of the microwave oven 1 is automatically cleared and the working time is recalculated, at the moment, if the working time T1 is reached, the microwave oven 1 automatically stops working and takes out the food, if the working time T1 is not reached, the food is taken out midway, namely, the microwave oven 1 is moved to stop working, and the like; wherein the T1 may be 3 minutes.
When the microwave oven is used specifically, the working time T1 of the microwave oven 1 each time is preset through the delay relay 23, for example, 3 minutes. When the microwave oven works specifically, food is put into the microwave oven 1, then the door of the microwave oven 1 is closed, the door switch K is closed, and the microwave oven 1 is powered on; further, the card reader 25 is used for carrying out card reading operation, wherein the card can be managed on the hand of medical staff, after the card is effectively read, the microwave oven 1 works, namely the control panel switch K1 is switched from the connection state of the control panel static contact 101 and the control panel normally closed contact 102 to the connection state of the control panel static contact 101 and the control panel normally open contact 103, so that the third wire 5, the control panel static contact 101, the control panel normally open contact 103, the fourth wire 6, the relay first node 204, the relay second node 205, the sixth wire 8, the live wire L and the neutral wire N are correspondingly communicated, namely the time delay relay 23 is connected with a power supply; further, the operation of the delay relay 23, that is, the relay switch K2 is switched from the connection state of the relay stationary contact 201 and the relay normally-closed contact 202 to the connection state of the relay stationary contact 201 and the relay normally-open contact 203, that is, the third wire 5, the control panel stationary contact 101, the control panel normally-open contact 103, the fifth wire 7, the relay stationary contact 201, the relay normally-open contact 203, the seventh wire 9, the contactor first node 304, the contactor second node 305, the eighth wire 10, the sixth wire 8, the live line L and the neutral line N are correspondingly communicated, and at this time, the ac contactor 24 is connected with the power supply; further, the ac contactor 24 operates to pull in, that is, the contactor switch K3 is switched from the connection state of the contactor stationary contact 301 and the contactor normally closed contact 302 to the connection state of the contactor stationary contact 301 and the contactor normally open contact 303, so that the live line L of the utility power, the ninth wire 11, the contactor stationary contact 301, the contactor normally open contact 303, the twelfth wire 14, the microwave oven 1, the eleventh wire 13, the contactor third node 306, the tenth wire 12, and the neutral line N of the utility power are correspondingly connected, that is, the microwave oven 1 is powered on.
In this embodiment, when the operating time of the microwave oven 1 reaches the operating time T1 preset by the delay relay 23, the delay relay 23 stops operating, the relay switch K2 switches from the connection state of the relay stationary contact 201 and the relay normally-open contact 203 to the connection state of the relay stationary contact 201 and the relay normally-closed contact 202, so as to stop the ac contactor 24 from being powered off, and the contactor switch K3 switches from the connection state of the contactor stationary contact 301 and the contactor normally-open contact 303 to the connection state of the contactor stationary contact 301 and the contactor normally-closed contact 302, so as to power off the microwave oven 1, that is, the microwave oven 1 stops operating.
If the food is taken out halfway when the working time does not reach T1 in the working process of the microwave oven 1, the control panel 21 is powered off and stops working due to the disconnection of the door switch K, even if the door of the microwave oven 1 is closed again, the control panel 21 is in the power-off state without swiping the card at the moment, so that the control panel change-over switch K1 is in the connection state of the control panel stationary contact 101 and the control panel normally closed contact 102, the time delay relay 23 and the alternating current contactor 24 cannot be electrified, and the microwave oven 1 can be ensured to be in the power-off state, so that the microwave oven is prevented from being powered; if the microwave oven 1 needs to be restarted after power failure, the card is swiped again after the door is closed, in addition, the microwave oven 1 can be ensured to have short power failure rest time by opening the door to take out food and immediately swiped the card to work even if the food is put into the microwave oven 1 again, and the microwave oven 1 is prevented from being overheated and the like.
Example two:
referring to fig. 2 to 4, the difference between the present embodiment and the first embodiment is: in step S1, the interval time T2 of the two preceding and succeeding uses of the microwave oven 1, the maximum time T3 of each operation of the microwave oven 1 are previously set by the control board 21. When the microwave oven 1 needs to be started again after power failure, the card swiping is effective only when the power failure time of the microwave oven 1 is ensured to be greater than the interval use time T2, namely the control board 21 can be electrified and the time delay relay 23 and the alternating current contactor 24 are sequentially connected, and finally the microwave oven 1 is electrified to work; if the power-off time of the microwave oven 1 is less than or equal to the interval use time T2, the microwave oven 1 is in the protection state, the card swiping is invalid, and therefore the microwave oven 1 is in the power-off state, namely the time delay relay 23, the alternating current contactor 24 and the microwave oven 1 cannot be electrified to work.
In this embodiment, the T2 may be 30 seconds, and the T3 may be 5 minutes.
The effects of use with the present embodiment are described as follows:
wherein the following tables 1-3 show the use of conventional microwave ovens in some hospital departments: the maintenance frequency is 28 times in the use process of 4 microwave ovens 1, the service life of each microwave oven 1 is 6 months on average, the microwave ovens 1 are scrapped in the guarantee period, the maintenance is less than one time in one month on average, and the fire alarm frequency caused by improper use of the microwave ovens 1 is 20 times.
TABLE 1
TABLE 2
TABLE 3
The following table 4 shows the use conditions of the microwave oven 1 controlled by the control method of the special card-swiping type microwave oven for hospitals, wherein the use conditions comprise maintenance times, renewal times and the times of fire alarm caused by the microwave oven 1, and the satisfaction degree of users is improved.
TABLE 4
The following table 5 shows that the microwave oven controlled by the control method of the special card-swiping microwave oven for hospitals is compared with the energy consumption situation of a coin-operated microwave oven or a traditional card-swiping microwave oven, the working time of the microwave oven which is randomly adjusted is limited to be fixed working time on the premise of meeting the requirement of heating food, the fixed working time of the microwave oven 1 is 3 minutes, for example, the power of each microwave oven is 1KW when 28 microwave ovens are used in the whole hospital at present, each microwave oven is used for 50 times every day, and experimental data show that the 28 microwave ovens controlled by the control method of the invention can save the electric energy for hospitals by 112 degrees every day, and the electric energy can be saved for hospitals by 40320 degrees every year, so that the energy-saving effect is obvious.
TABLE 5
In conclusion, the microwave oven with the structure and the control method has the advantages of saving energy, avoiding damage caused by overheating and empty burning of the microwave oven after being used for a long time and ensuring the service life of the microwave oven.
It will be apparent to those skilled in the art that various other changes and modifications may be made in the above-described embodiments and concepts and all such changes and modifications are intended to be within the scope of the appended claims.
Claims (3)
1. A control method of a card-swiping type microwave oven special for hospitals comprises a microwave oven (1); the method is characterized in that: the control element (2) for controlling the microwave oven (1) to work is arranged on the microwave oven (1), the control element (2) comprises a control panel (21), a door switch (K), a time delay relay (23), an alternating current contactor (24) and a card reader (25), and the control panel (21) is electrically connected with the card reader (25);
the control board (21) is provided with a control board switch (K1) with a control board static contact (101), a control board normally closed contact (102) and a control board normally open contact (103), and is also provided with a control board first node (104) and a control board second node (105);
the time delay relay (23) is provided with a relay switch (K2) with a relay static contact (201), a relay normally closed contact (202) and a relay normally open contact (203), and is also provided with a relay first node (204) and a relay second node (205);
the alternating current contactor (24) is provided with a contactor switching switch (K3) with a contactor static contact (301), a contactor normally closed contact (302) and a contactor normally open contact (303), and is further provided with a contactor first node (304), a contactor second node (305) and a contactor third node (306);
wherein, the first control panel node (104) is connected with the live wire (L) of the commercial power through a first wire (3) via the door switch (K), the second control panel node (105) is connected with the zero line (N) of the commercial power through a second wire (4), the stationary contact (101) of the control panel is connected with the zero line (N) of the commercial power through a third wire (5), the normally open contact (103) of the control panel is respectively connected with the first relay node (204) and the stationary relay contact (201) through a fourth wire (6) and a fifth wire (7), the second relay node (205) is connected with the live wire (L) of the commercial power through a sixth wire (8), the normally open contact (203) of the relay is connected with the first contactor node (304) through a seventh wire (9), and the second contactor node (305) is connected with the live wire (L) of the commercial power through an eighth wire (10), the third node (306) of the contactor and the static contact (301) of the contactor are respectively connected with a live wire (L) and a zero wire (N) of a mains supply through a ninth wire (11) and a tenth wire (12), and the third node (306) of the contactor and the normally open contact (303) of the contactor are respectively connected with the microwave oven (1) through an eleventh wire (13) and a twelfth wire (14);
it also includes the following steps:
s1: presetting the working time T1 of the microwave oven (1) each time through a delay relay (23);
s2: putting food into the microwave oven (1) to close the door and swiping card, and electrifying the control panel (21) to work;
s3: the control panel (21) acts to electrify the delay relay (23) to work;
s4: the alternating current contactor (24) is electrified to work through the action of the time delay relay (23);
s5: the microwave oven (1) is electrified to work by the action of the alternating current contactor (24);
s6: and (3) judging whether the working time of the microwave oven (1) reaches the working time T1 in real time, if so, stopping the microwave oven (1) and taking out the food, otherwise, if the food is taken out midway, stopping the microwave oven (1) passively and returning to the state of swiping the card of the food to be put in of the step S2.
2. The control method of the special card-swiping type microwave oven for the hospital according to claim 1, characterized in that: in step S1, the control board (21) presets the interval time T2 of the microwave oven (1) used twice before and after, and the maximum time T3 of each operation of the microwave oven (1);
when the microwave oven (1) needs to be restarted after power failure, if the power failure time of the microwave oven (1) is longer than the interval use time T2, the card is swiped to be effective, and then the card can be electrified for reuse, if the power failure time of the microwave oven (1) is shorter than or equal to the interval use time T2, the microwave oven (1) is in a protection state, and the card swiping is invalid;
the microwave oven (1) is effectively restarted every time when the card is swiped, the control panel (21) automatically clears the working time T1 of the microwave oven (1) and recalculates the working time.
3. The control method of hospital-specific card-swiping type microwave oven according to claim 2, wherein said T1 is 3 minutes, T2 is 30 seconds, and T3 is 5 minutes.
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| US4814588A (en) * | 1980-05-12 | 1989-03-21 | Hitachi Heating Appliances Co., Ltd. | Foodstuffs heating apparatus using information cards for automatic mode setting or the like |
| CN202166092U (en) * | 2011-05-12 | 2012-03-14 | 李云峰 | Coin-feed type microwave oven |
| CN103150832A (en) * | 2011-12-06 | 2013-06-12 | 钱晓进 | RF (Radio Frequency) card charging microwave oven |
| DE102012008645A1 (en) * | 2012-05-02 | 2013-11-07 | Heidelberger Druckmaschinen Aktiengesellschaft | Touchpad as an interface and code reader for controlling other devices |
| CN203503066U (en) * | 2013-10-10 | 2014-03-26 | 陈美君 | Card-swiping type microwave oven |
| CN206301176U (en) * | 2016-11-28 | 2017-07-04 | 栗甜 | A kind of hospital's micro-wave oven group system based on RFID |
| CN207123903U (en) * | 2017-06-16 | 2018-03-20 | 合肥海鸟电子科技有限公司 | It is a kind of to support coin and the commercial microwave oven of mobile-phone payment |
| CN107424334A (en) * | 2017-08-04 | 2017-12-01 | 东莞市百盛聚氨酯材料有限公司 | A kind of micro-wave oven of convenient use |
| CN207976957U (en) * | 2018-04-18 | 2018-10-16 | 刘夫贵 | Micro-wave oven public intelligent manages system |
| CN209962332U (en) * | 2019-06-26 | 2020-01-17 | 吴江市紫宇电子科技有限公司 | Shared microwave oven system |
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