CN107294052B - A kind of grill automatically powers off control circuit - Google Patents
A kind of grill automatically powers off control circuit Download PDFInfo
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- CN107294052B CN107294052B CN201710426138.1A CN201710426138A CN107294052B CN 107294052 B CN107294052 B CN 107294052B CN 201710426138 A CN201710426138 A CN 201710426138A CN 107294052 B CN107294052 B CN 107294052B
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- relay
- grill
- baking tray
- mouth
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- 238000001514 detection method Methods 0.000 claims abstract description 80
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 230000005611 electricity Effects 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims 1
- 206010014357 Electric shock Diseases 0.000 abstract description 4
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/06—Details with automatic reconnection
- H02H3/066—Reconnection being a consequence of eliminating the fault which caused disconnection
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J37/00—Baking; Roasting; Grilling; Frying
- A47J37/10—Frying pans, e.g. frying pans with integrated lids or basting devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
- H02H5/042—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature using temperature dependent resistors
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Baking, Grill, Roasting (AREA)
Abstract
Control circuit is automatically powered off the present invention relates to a kind of grill, the grill includes pedestal and moveable baking tray, there is the contact ACN being electrically connected with the ACN line of power supply, the ACL line of mono- termination power of heater L1 of baking tray, another contact termination ACN on the pedestal.It may include detection control chip U1, a status signal detection circuit, a relay RY1, a control relay circuit and a temperature sensing circuit that this, which automatically powers off control circuit,.Detection control chip U1 determines whether baking tray is removed according to preset program, and is disconnected relay RY1 by the control relay circuit after determining that baking tray is removed, and keeps the contact ACN not charged, from without Danger Electric shock risk.The present invention can be integrated in the control circuit of original grill without the concern for designing in structure, at low cost, and can ensure that grill is used safely, the case where being not in electric shock.
Description
Technical field
Control circuit is automatically powered off the present invention relates to a kind of grill, is related in particular to a kind of for detecting grill
Baking tray whether remove and disconnected automatically after baking tray is removed grill power supply circuit.
Background technique
Moveable baking tray is controlled by temperature sensor, and temperature height stops working, the low start-up operation of temperature.It is removable
Dynamic baking tray, it is meant that be contacted with grill, to obtain voltage.After taking away baking tray, if do not powered off in time, that
Human body may also touch, and lead to human electric shock, then will be very strict to this respect requirement.The prior art is generally logical
Microswitch is crossed to single-chip microcomputer signal, not only cost improves, and it is all relatively stringenter that there are also Structural Design Requirements.In addition, microswitch
There is also by unexpected the case where touching and charging grill.
CN203234600U discloses a kind of safe power cutoff mechanism of grill, is placed in a movable baking tray and a pedestal
Use electric-type grill in, the heater element of the grill is connected to alternating current by a temperature controller, wherein the temperature controller have insert
Access the temperature control stick in the baking tray thermometer hole；It includes block piece, is snug fit at the baking tray, is arranged between the baking tray
Reset spring；The block piece has what sliding blocked the thermometer hole to block head；And support frame, it is vertically fixed to the bottom
Seat has the through-hole that can be aligned with the thermometer hole；Wherein, have on the block piece and be inserted by support frame as described above and keep away it
The oblique surface allowed.The mechanism equally exists design structure complexity, and problem at high cost.
Summary of the invention
The present invention is intended to provide a kind of grill automatically powers off control circuit, to solve automatically powering off for existing grill
Protection structure has that structure is complicated, at high cost.For this purpose, the specific technical solution that the present invention uses is as follows:
A kind of grill automatically powers off control circuit, and the grill includes pedestal and moveable baking tray, the bottom
There is the contact ACN being electrically connected with the ACN line of power supply, the ACL line of mono- termination power of heater L1 of baking tray, another termination on seat
The contact ACN.The automatic power-off circuit of the grill may include detection control chip U1, a relay RY1, relay control
Circuit, a status signal detection circuit and a temperature sensing circuit, the detection control chip U1 believe including at least a state
Number detection mouth IO_zero, a relay control mouth IO_relay and a temperature detection mouth IO_temp, the relay control
The input contact relay control mouth IO_relay of circuit exports the input terminal of contact relay RY1, a pair of the relay RY1
One in the output contact contact ACN for connecing grill, another connect the ACN line of power supply, the status signal detection circuit
Input is connected to the node between one in the contact ACN of grill and a pair of of output contact of relay RY1, and output is connected to shape
State signal detection mouth IO_zero, the output of the temperature sensing circuit are connected to temperature detection mouth IO_temp；When the non-work of grill
Make and relay RY1 is when being in an off state, detection control chip U1 judges according to the signal of status signal detection mouth IO_zero
Whether baking tray is removed, if judging, baking tray is removed, and relay remains off, and grill cannot work；When grill works
When, detection control chip U1 judges the current temperature status of baking tray according to the signal of temperature detection mouth IO_temp first, if sentenced
Disconnected baking tray is in low temperature and temperature does not rise in the given time or baking tray cools down suddenly out, then passes through relay control mouth IO_
Relay output signal disconnects relay RY1, judges whether baking tray moves further according to the signal of status signal detection mouth IO_zero
It opens, if judging, baking tray is removed, and relay RY1 is remained off, and keeps the contact ACN not charged, if judging, baking tray is not removed,
Relay RY1 is closed by relay control mouth IO_relay output signal, grill works on.
Further, the detection control chip U1 judges that baking tray is according to the signal of status signal detection mouth IO_zero
The no specific judgment rule removed is: when the signal of status signal detection mouth IO_zero is zero level, indicating that baking tray is removed；And
When the signal of status signal detection mouth IO_zero is square-wave signal, indicate that baking tray is not removed.
Further, the status signal detection circuit includes current-limiting resistance R1 and R2 and pull down resistor R3, current limliting electricity
Resistance mono- end R1 is connected to the node between one in the contact ACN of grill and a pair of of output contact of relay RY1, the other end
Status signal detection mouth IO_zero is connected to after concatenation current-limiting resistance R2 again, the one end pull down resistor R3 ground connection is another to be connected to current limliting
Node between resistance R2 and status signal detection mouth IO_zero.
Further, the control relay circuit may include resistance R10, R11, triode N1 and diode D1, three poles
The base stage of pipe N1 is connect by resistance R10 with relay control mouth IO_relay, in the input terminal of collector and relay RY1
One connection, emitter ground connection, mono- end resistance R11 is connected to the node between resistance R10 and the base stage of triode N1, another termination
Node to the transmitter and ground of triode N1, the anode of diode D1 are connected to the input terminal of collector Yu relay RY1
In one between node, cathode is connected to the node between another in the input terminal of+12V and relay RY1.
Further, the model 2N5551 of triode N1.
Further, the temperature sensing circuit includes thermistor temperature sensor S1, resistance R20, R21 and capacitor
Mono- termination+5V of C1, thermistor temperature sensor S1, other end series resistor R20 is followed by temperature detection mouth IO_temp, electric
Resistance mono- end R21 is connected to the node between thermistor temperature sensor S1 and resistance R20, other end ground connection, and capacitor C1 mono- is terminated
Node to resistance R20 and temperature detection mouth IO_temp, another node being connected between resistance R21 and ground.
Further, the thermistor temperature sensor S1 is NTC thermistor.
The present invention by adopting the above technical scheme, has an advantageous effect in that, the present invention in structure without the concern for designing, energy
It is enough integrated in the control circuit of original grill, it is at low cost, and can ensure that grill is used safely, it is not in touching
The situation of electricity.
Detailed description of the invention
Fig. 1 is the circuit diagram of the embodiment of the present invention.
Specific embodiment
To further illustrate that each embodiment, the present invention are provided with attached drawing.These attached drawings are that the invention discloses one of content
Point, mainly to illustrate embodiment, and the associated description of specification can be cooperated to explain the operation principles of embodiment.Cooperation ginseng
These contents are examined, those of ordinary skill in the art will be understood that other possible embodiments and advantages of the present invention.In figure
Component be not necessarily to scale, and similar component symbol is conventionally used to indicate similar component.
Now in conjunction with the drawings and specific embodiments, the present invention is further described.Referring to Fig.1, reality of the invention is specifically described
Apply example.A kind of grill automatically powers off control circuit, and whether the baking tray for detecting grill is removed, and after baking tray is removed
The automatic power supply for disconnecting grill.The grill includes pedestal and moveable baking tray, is had and power supply on the pedestal
The contact ACN of ACN line electrical connection, the ACL line of mono- termination power of heater L1 of baking tray, another contact termination ACN, i.e. baking tray
Heater L1 is powered on by contacting with the contact ACN.This automatically power off control circuit may include a detection control chip U1,
One relay RY1, a control relay circuit 10, a status signal detection circuit 20 and a temperature sensing circuit 30, it is described
Detection control chip U1 includes at least a status signal detection mouth IO_zero, a relay control mouth IO_relay and a temperature
Spend detection mouth IO_temp.Detection control chip U1 is commercially available chip (single-chip microcontroller) in the market, and specific structure is herein no longer
It is further described.The input contact relay control mouth IO_relay of the control relay circuit 10 exports contact relay RY1
Input terminal, one in a pair of of output contact of the relay RY1 contact ACN for connecing grill, another connect power supply
ACN line.The input of the status signal detection circuit 20 is connected to the contact ACN of grill and a pair of of output of relay RY1 is touched
The node between one in point, output are connected to status signal detection mouth IO_zero.The output of temperature sensing circuit 30 is connected to temperature
Spend detection mouth IO_temp.When grill does not work and relay RY1 is in an off state, chip U1 is according to shape for detection control
The signal of state signal detection mouth IO_zero judges whether baking tray is removed, if judging, baking tray is removed, and relay remains open shape
State, grill cannot work；When grill work, chip U1 is first according to the letter of temperature detection mouth IO_temp for detection control
Number judge the current temperature status of baking tray, if it is judged that baking tray in low temperature and temperature in the predetermined time, (predetermined time can root
Be configured according to specific grill) in do not rise or baking tray cools down that (cooling extent can also be set according to specific grill suddenly
Set), then relay RY1 is disconnected by relay control mouth IO_relay output signal, further according to status signal detection mouth IO_
The signal of zero judges whether baking tray is removed, if judging, baking tray is removed, and relay RY1 is remained off, and makes the contact ACN not
Electrification, if judging, baking tray is not removed, is closed relay RY1 by relay control mouth IO_relay output signal, grillING
Device works on.
Preferably, whether the detection control chip U1 judges baking tray according to the signal of status signal detection mouth IO_zero
The specific judgment rule removed is: when the signal of status signal detection mouth IO_zero is zero level, indicating that baking tray is removed；And shape
When the signal of state signal detection mouth IO_zero is square-wave signal, indicate that baking tray is not removed.
In the shown embodiment, the control relay circuit 10 may include resistance R10, R11, triode N1 and diode
The base stage of D1, triode N1 are connect by resistance R10 with relay control mouth IO_relay, and collector is defeated with relay RY1's
Entering a connection in end, emitter ground connection, mono- end resistance R11 is connected to the node between resistance R10 and the base stage of triode N1,
Node between another transmitter and ground for being connected to triode N1, the anode of diode D1 are connected to collector and relay RY1
Input terminal in one between node, cathode is connected to the section between another in the input terminal of+12V and relay RY1
Point.Preferably, the model 2N5551 of triode N1.
In the shown embodiment, the status signal detection circuit 20 may include current-limiting resistance R1 and R2 and pull down resistor
Mono- end R3, current-limiting resistance R1 is connected to the section between one in the contact ACN of grill and a pair of of output contact of relay RY1
Point, the other end are connected to status signal detection mouth IO_zero after concatenating current-limiting resistance R2 again, and the one end pull down resistor R3 ground connection is another
The node being connected between current-limiting resistance R2 and status signal detection mouth IO_zero.
In the shown embodiment, the temperature sensing circuit 30 may include thermistor temperature sensor S1, resistance R20,
R21 and capacitor C1, thermistor temperature sensor S1 mono- termination+5V, other end series resistor R20 are followed by temperature detection mouth
Mono- end IO_temp, resistance R21 is connected to the node between thermistor temperature sensor S1 and resistance R20, other end ground connection, electricity
Hold mono- end C1 and is connected to the node between resistance R20 and temperature detection mouth IO_temp, it is another to be connected between resistance R21 and ground
Node.Preferably, the thermistor temperature sensor S1 is NTC thermistor.
Now briefly describe the working principle of the invention.In the case where relay RY1 is in an off state, when baking tray is put into grill
When upper, the signal of status signal detection mouth IO_zero is square-wave signal, and when baking tray is not put on grill, status signal
The signal of detection mouth IO_zero is 0 level.Therefore, detection control chip U1 can pass through the letter of status signal detection mouth IO_zero
Number it is square-wave signal or 0 level to judge whether baking tray is put on grill, only detects that baking tray has been placed on grill,
High level is just exported by relay control mouth IO_relay, makes triode N1 saturation conduction, relay RY1 closure, grill
It could work.And during the work time, since relay RY1 is in closed state, the signal of status signal detection mouth IO_zero
It is square-wave signal, so can not directly judge whether baking tray is removed, the signal of combination temperature detection mouth IO_temp is needed to carry out
Judgement.If being now in low-temperature condition, detects control chip U1 and judged first according to the signal of temperature detection mouth IO_temp
Whether temperature increases in the given time, if not increasing, by relay control mouth IO_relay export low level, make after
Electric appliance RY1 is disconnected, and then judges to bake by the way that the signal of status signal detection mouth IO_zero is square-wave signal or 0 level again
Whether disk is removed, and when judging that baking tray is removed, relay RY1 is remained open, so that the contact ACN is not charged, to will not have touching
It is electric dangerous；When judging that baking tray is not removed, exporting high level by relay control mouth IO_relay is closed relay RY1,
Grill is allowed to work on.If detection control chip U1 is declined super suddenly by temperature detection mouth IO_temp monitoring temperature
Preset value is crossed, then low level is exported by relay control mouth IO_relay first, relay RY1 is disconnected, then passes through again
The signal of status signal detection mouth IO_zero is square-wave signal or 0 level to judge whether baking tray is removed, if judging, baking tray is moved
It opens, then relay RY1 is remained open, and keeps the contact ACN not charged, to will not have Danger Electric shock risk；If judgement do not remove (it is possible because
Put food and temperature caused to decline), then high level is exported by relay control mouth IO_relay, be closed relay RY1, permitted
Perhaps grill works on.
Although specifically showing and describing the present invention in conjunction with preferred embodiment, those skilled in the art should be bright
It is white, it is not departing from the spirit and scope of the present invention defined by the appended claims, it in the form and details can be right
The present invention makes a variety of changes, and is protection scope of the present invention.
Claims (7)
1. a kind of grill automatically powers off control circuit, the grill includes pedestal and moveable baking tray, and feature exists
In with the contact ACN being electrically connected with the ACN line of power supply, the ACL of mono- termination power of heater L1 of baking tray on the pedestal
Line, another contact termination ACN, it is described automatically power off control circuit include one detection control chip U1, a relay RY1, one after
Electrical apparatus control circuit, a status signal detection circuit and a temperature sensing circuit, the detection control chip U1 are included at least
One status signal detection mouth IO_zero, a relay control mouth IO_relay and a temperature detection mouth IO_temp, it is described after
The input contact relay control mouth IO_relay of electrical apparatus control circuit exports the input terminal of contact relay RY1, the relay
One in a pair of of output contact of the RY1 contact ACN for connecing grill, another connect the ACN line of power supply, the status signal inspection
The input of slowdown monitoring circuit is connected to the node between one in the contact ACN of grill and a pair of of output contact of relay RY1, defeated
It is connected to status signal detection mouth IO_zero out, the output of the temperature sensing circuit is connected to temperature detection mouth IO_temp；When pan-fried
When roasting device does not work and relay RY1 is in an off state, chip U1 is according to status signal detection mouth IO_zero's for detection control
Signal judges whether baking tray is removed, if judging, baking tray is removed, and relay remains off, and grill cannot work；When pan-fried
When roasting device work, detection control chip U1 judges the Current Temperatures shape of baking tray according to the signal of temperature detection mouth IO_temp first
State then passes through relay control if it is judged that baking tray is in low temperature and temperature does not rise in the given time or baking tray cools down suddenly
Donsole IO_relay output signal disconnects relay RY1, judges baking tray further according to the signal of status signal detection mouth IO_zero
Whether remove, if judging, baking tray is removed, and relay RY1 is remained off, and keeps the contact ACN not charged, if judging baking tray not
It removes, is then closed relay RY1 by relay control mouth IO_relay output signal, grill works on.
2. grill as described in claim 1 automatically powers off control circuit, which is characterized in that the detection controls chip U1
It is according to the specific judgment rule that the signal of status signal detection mouth IO_zero judges whether baking tray is removed: status signal detection
When the signal of mouth IO_zero is zero level, indicate that baking tray is removed；And the signal of status signal detection mouth IO_zero is square wave letter
Number when, indicate baking tray do not remove.
3. grill as described in claim 1 automatically powers off control circuit, which is characterized in that the control relay circuit
Including resistance R10, R11, triode N1 and diode D1, the base stage of triode N1 passes through resistance R10 and relay control mouth IO_
Relay connection, collector are connect with one in the input terminal of relay RY1, and emitter ground connection, mono- end resistance R11 is connected to electricity
Hinder the node between R10 and the base stage of triode N1, the node between another transmitter and ground for being connected to triode N1, two poles
The anode of pipe D1 is connected to the node between one in the input terminal of collector and relay RY1, and cathode is connected to+12V and relay
Node between another in the input terminal of device RY1.
4. grill as claimed in claim 3 automatically powers off control circuit, which is characterized in that the model of triode N1
2N5551。
5. grill as described in claim 1 automatically powers off control circuit, which is characterized in that the status signal detection electricity
Road includes current-limiting resistance R1 and R2 and pull down resistor R3, and mono- end current-limiting resistance R1 is connected to the contact ACN and the relay of grill
The node between one in a pair of of output contact of RY1, the other end are connected to status signal detection after concatenating current-limiting resistance R2 again
Mouth IO_zero, the one end pull down resistor R3 ground connection are another to be connected between current-limiting resistance R2 and status signal detection mouth IO_zero
Node.
6. grill as described in claim 1 automatically powers off control circuit, which is characterized in that the temperature sensing circuit packet
Include thermistor temperature sensor S1, resistance R20, R21 and capacitor C1, thermistor temperature sensor S1 mono- termination+5V is another
End series resistor R20 is followed by temperature detection mouth IO_temp, and mono- end resistance R21 is connected to thermistor temperature sensor S1 and electricity
The node between R20 is hindered, other end ground connection, mono- end capacitor C1 is connected to the section between resistance R20 and temperature detection mouth IO_temp
Point, another node being connected between resistance R21 and ground.
7. grill as claimed in claim 6 automatically powers off control circuit, which is characterized in that the thermistor temp passes
Sensor S1 is NTC thermistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710426138.1A CN107294052B (en) | 2017-06-08 | 2017-06-08 | A kind of grill automatically powers off control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710426138.1A CN107294052B (en) | 2017-06-08 | 2017-06-08 | A kind of grill automatically powers off control circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107294052A CN107294052A (en) | 2017-10-24 |
| CN107294052B true CN107294052B (en) | 2019-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710426138.1A Active CN107294052B (en) | 2017-06-08 | 2017-06-08 | A kind of grill automatically powers off control circuit |
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| CN (1) | CN107294052B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109363528B (en) * | 2018-11-22 | 2021-05-04 | 厦门芯阳科技股份有限公司 | Control method of baking tray of smokeless machine and baking tray |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201247399Y (en) * | 2008-08-15 | 2009-05-27 | 浙江瑞德电子科技有限公司 | Electronic controller for electric iron |
| CN201445354U (en) * | 2009-07-28 | 2010-05-05 | 美的集团有限公司 | Control device of electric kettle |
| CN102657477B (en) * | 2012-05-10 | 2014-11-12 | 浙江绍兴苏泊尔生活电器有限公司 | Electric kettle and working method thereof |
| CN203234600U (en) * | 2013-04-12 | 2013-10-16 | 漳州灿坤实业有限公司 | Safety breaker mechanism of frying-roasting device |
| CN103479243B (en) * | 2013-09-16 | 2016-09-14 | 九阳股份有限公司 | A kind of safe food-processing machine |
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2017
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| CN107294052A (en) | 2017-10-24 |
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Denomination of invention: Automatic power-off control circuit for frying and baking device Effective date of registration: 20200521 Granted publication date: 20190308 Pledgee: Bank of China Limited by Share Ltd. Xiamen branch Pledgor: XIAMEN CHIPSUN TECHNOLOGY Co.,Ltd. Registration number: Y2020980002394 |
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Date of cancellation: 20210616 Granted publication date: 20190308 Pledgee: Bank of China Limited by Share Ltd. Xiamen branch Pledgor: XIAMEN CHIPSUN TECHNOLOGY Co.,Ltd. Registration number: Y2020980002394 |
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Denomination of invention: An automatic power-off control circuit for fryer Effective date of registration: 20210616 Granted publication date: 20190308 Pledgee: Bank of China Limited by Share Ltd. Xiamen branch Pledgor: XIAMEN CHIPSUN TECHNOLOGY Co.,Ltd. Registration number: Y2021990000529 |
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Date of cancellation: 20220622 Granted publication date: 20190308 Pledgee: Bank of China Limited by Share Ltd. Xiamen branch Pledgor: XIAMEN CHIPSUN TECHNOLOGY Co.,Ltd. Registration number: Y2021990000529 |
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Denomination of invention: An automatic power-off control circuit of fryer Effective date of registration: 20220623 Granted publication date: 20190308 Pledgee: Bank of China Limited by Share Ltd. Xiamen branch Pledgor: XIAMEN CHIPSUN TECHNOLOGY Co.,Ltd. Registration number: Y2022110000136 |
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Date of cancellation: 20230705 Granted publication date: 20190308 Pledgee: Bank of China Limited by Share Ltd. Xiamen branch Pledgor: XIAMEN CHIPSUN TECHNOLOGY Co.,Ltd. Registration number: Y2022110000136 |
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Denomination of invention: An automatic power off control circuit for a fryer Effective date of registration: 20230706 Granted publication date: 20190308 Pledgee: Bank of China Limited by Share Ltd. Xiamen branch Pledgor: XIAMEN CHIPSUN TECHNOLOGY Co.,Ltd. Registration number: Y2023110000277 |
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Date of cancellation: 20231220 Granted publication date: 20190308 Pledgee: Bank of China Limited by Share Ltd. Xiamen branch Pledgor: XIAMEN CHIPSUN TECHNOLOGY Co.,Ltd. Registration number: Y2023110000277 |
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Denomination of invention: An automatic power-off control circuit for a frying and baking machine Effective date of registration: 20231222 Granted publication date: 20190308 Pledgee: Bank of China Limited by Share Ltd. Xiamen branch Pledgor: XIAMEN CHIPSUN TECHNOLOGY Co.,Ltd. Registration number: Y2023110000543 |
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