CN206867133U - The cooking apparatus that a kind of grillING is baked and banked up with earth - Google Patents
The cooking apparatus that a kind of grillING is baked and banked up with earth Download PDFInfo
- Publication number
- CN206867133U CN206867133U CN201621463154.5U CN201621463154U CN206867133U CN 206867133 U CN206867133 U CN 206867133U CN 201621463154 U CN201621463154 U CN 201621463154U CN 206867133 U CN206867133 U CN 206867133U
- Authority
- CN
- China
- Prior art keywords
- relay
- detection branch
- control chip
- cooking apparatus
- main control
- 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.)
- Active
Links
Abstract
The application proposes the cooking apparatus that a kind of grillING is baked and banked up with earth, including：Housing, the heating element heater and master control borad being arranged in housing, one end of the heating element heater is connected by relay with live wire, the other end is connected with zero line, the break-make that the master control borad passes through heating element heater described in the Control, the master control borad is provided with main control chip and the detection circuit of relay-operating time and release time, the detection circuit includes symmetrically arranged first detection branch and the second detection branch, one end of first detection branch is connected with relay input, the other end connects main control chip, one end of second detection branch is connected with relay output end, the other end connects main control chip.Circuit is detected by symmetrical expression, detects relay-operating time and release time, accurate control relay adhesive and release prevent relay closing time from causing relay to close caused electric discharge at high potential all on the zero-potential point of alternating current.
Description
Technical field
It the utility model is related to cooking apparatus field, and in particular to the cooking apparatus that a kind of grillING is baked and banked up with earth.
Background technology
Cooking apparatus is baked and banked up with earth in existing grillING, and in order to realize heating, generally use heating tube or heater strip are heated,
In order to control the break-make of heating tube or heater strip, relay is typically provided with cooking apparatus, due to heating tube or heater strip
It is generally arranged in major loop, therefore voltage, electric current are larger.And in a cooking process, heating tube or heater strip need
Multiple break-make, if relay adhesive or release under full load condition, damage that high voltage, high current then can be to contacts,
Consumption, oxidation, cause contact to burn, loose contact, adhesion the problems such as, once relay sticks together, then heating tube can not be by
Disconnected in time according to control instruction, so that the temperature of cooking cavity is too high, the food of cooked-on culinary art, in some instances it may even be possible to cause cooking pot
The safety problem of tool.And if relay adhesive or release at high potential, then can produce electric arc EMI
(Electromagnetic Interference, electromagnetic interference), causes hidden danger, while influences other electric equipment products
Work.In order to extend the life-span of relay, conventional way is the number of the adhesive and the release that reduce heating element heater, generally will
The adhesive temperature of heating element heater and the scope of release temperature set bigger, but temperature wave when this set causes culinary art
Dynamic larger, the food mouthfeel of culinary art is poor.
For the cooking apparatus of accurate temperature controlling, then in the actuating of relay of cooking apparatus, the actuation time is considered, in advance
Control signal is sent, but due to the individual difference of circuit components, it is not in zero crossings that may cause its actual act.
And after relay uses a period of time, the gradual aging of relay, adhesive, release time change so that initially exist
The product of zero crossings adhesive, also can be in high potential adhesive, release.And once pickup time, release time change, and add
Frequent break-make in its upper cooking process, accelerates the damage of cooking apparatus.In product repairing, it is also difficult to find with before after
Electrical equipment actuation time identical relay, it has not been convenient to repair.
Utility model content
The utility model provides the cooking apparatus that a kind of grillING is baked and banked up with earth, and realizes that relay in zero-potential point adhesive, not only may be used
To realize accurate temperature controlling, and effective guarantee cooking apparatus service life.
In order to realize above-mentioned purpose of utility model, the technical scheme that the utility model is taken is as follows：
The cooking apparatus that a kind of grillING is baked and banked up with earth, including：Housing, the heating element heater and master control borad being arranged in housing, it is described
One end of heating element heater is connected by relay with live wire, and the other end is connected with zero line, and the master control borad passes through the relay
The break-make of the heating element heater is controlled, the master control borad is provided with main control chip and the detection of relay-operating time and release time
Circuit, the detection circuit include symmetrically arranged first detection branch and the second detection branch, first detection branch
One end is connected with relay input, and other end connection main control chip, one end and the relay of second detection branch export
End connection, other end connection main control chip.
Preferably, timer is provided with the main control chip, the timer is sent and second for calculating control instruction
The time difference of detection branch signal saltus step, main control chip send control instruction to relay in advance according to the data of timer, controlled
Heating element heater work processed stops.
Preferably, the control instruction is sent in the case where the first detection branch input signal is high level state.
Preferably, the cooking apparatus also includes warning device, and maximum actuation time, timing are provided with the main control chip
When the time of device is more than the maximum actuation time, main control chip sends alarm signal by warning device.
Preferably, the working frequency of the main control chip is more than 12MHz.
Preferably, first detection branch and the second detection branch are equipped with optocoupler, the input side of the optocoupler and institute
The signal end electrical connection of relay is stated, the output end electrically connects with the main control chip.
Preferably, first detection branch and the second detection branch are equipped with current-limiting resistance, the current-limiting resistance and institute
State the input side series connection of optocoupler.
Preferably, the current-limiting resistance is adjustable resistance；Or the resistance of multiple series connection.
Preferably, the resistance of the resistance is 30-150K Ω.
Preferably, first detection branch and the second detection branch are equipped with the clamp in parallel with the optocoupler input side
Diode.
Preferably, first detection branch and the second detection branch are equipped with triode, the signal end of the relay
It is connected with transistor base, colelctor electrode or emitter stage electrically connect with main control chip.
Preferably, the heating element heater is heating tube or halide torch.
Compared to the prior art the utility model, has the advantages that：
1st, cooking apparatus of the present utility model is by setting the detection circuit of symmetrical expression, due to relay in zero point adhesive or
Release, therefore effectively extend the service life of cooking apparatus.Even if the frequent break-make of relay also will not adhesion, therefore can will
Heating element heater release temperature and adhesive temperature setting are in the range of 5 DEG C, because the temperature of cooking cavity is more constant, therefore cook
Mouthfeel it is more preferable.Can prevent simultaneously heating tube can not disconnect in time caused by culinary art cavity temperature it is too high, ensure cooking apparatus
Safety.Due to detection relay adhesive and release time, therefore can be anti-in time when adhesive and release time change in real time
Master control borad is fed to, so that heating tube can safely and reliably work all the time.The utility model detects circuit using symmetrical expression,
The conduction detection error of two-way can cancel out each other, and can ignore in error caused by hardware circuit, so as to the action of relay
Time detecting is more accurate.Because relay is in zero point annex adhesive, the generation of electric spark is avoided, it is hidden to effectively eliminate safety
Trouble and the interference to other electric equipment products.
2nd, is provided with timer in main control chip, by built-in timer, calculate main control chip issue a signal to complete after
The time difference of electrical equipment action, it is not necessary to which timing element is additionally set, and simple in construction, cost is relatively low, and the main control chip is according to institute
State pickup time or release time sends control instruction to relay in advance, control heating element heater work or stop.So as to add
When thermal element is started working or stopped, electric arc will not be produced by controlling the relay of heating element heater.
3rd, control instruction is sent in the case where the first detection branch input signal is high level state.So as to ensure that relay is being handed over
The positive half period adhesive or release of electricity are flowed, after adhesive or release, saltus step occurs for the output end signal of relay, and the signal is had
Effect is transferred to main control chip, so as to effectively prevent when alternating current is in pickup time caused by negative semiaxis adhesive or release and release
Between calculate mistake.
4th, the cooking apparatus also includes warning device, is provided with the maximum actuation time in the main control chip, works as timer
Time when being more than the maximum actuation time, main control chip sends alarm signal by warning device.So as to be heated when cooking apparatus
During system jam, user, the effective guarantee safety of product can be reminded with the very first time.
5th, the working frequency of the utility model main control chip is more than 12MHz, because the working frequency of main control chip is higher, because
This, cooking apparatus can timely and accurately send control signal, and the instruction cycle is much smaller than pickup time and release time, therefore,
Error caused by the instruction cycle can be effectively prevented, ensures the precision of detection.
6th, because the detection circuit input end of cooking apparatus is directly connected to civil power, circuit and master will be detected by optocoupler
Chip isolation is controlled, so as to effectively prevent main control chip from being caused to damage by city's surge, has ensured the safety of cooking apparatus.
7th, by setting current-limiting resistance, so as to effectively prevent that the electric current for flowing through optocoupler is excessive, heavy current impact is effectively prevented
Optocoupler, cause the damage of optocoupler.The resistance of the resistance is 30-150K Ω, within this range, can ensure effectively beating for optocoupler
Open, can also prevent optocoupler overcurrent damage.Because cooking apparatus connects civil power, if resistance is more than 150K Ω, may lead
Cause optocoupler signal effectively to work, if resistance is less than 30K Ω, optocoupler overcurrent damage may be caused.
8th, the current-limiting resistance is the resistance of multiple series connection, passes through the combination of existing valued resistor, it is possible to achieve specially hinder
Value, so as to reduce cost.Current-limiting resistance is adjustable resistance, then the resistance of detection branch can be adjusted by adjustable resistance, is made
It is equal to obtain the resistance of the first detection branch and the second detection branch, prevents tie point caused by resistance individual difference resistance difference
With the second asymmetric-branches.
Brief description of the drawings
Fig. 1 is the structural representation for detecting circuit of the relay-operating time and release time of the utility model embodiment 1
Figure；Fig. 2 is the relay-operating time and the structural representation for detecting circuit of release time of the utility model embodiment 2.
Embodiment
To make purpose of utility model of the present utility model, technical scheme and beneficial effect of greater clarity, with reference to
Embodiment of the present utility model is illustrated accompanying drawing, it is necessary to explanation is, in the case where not conflicting, the implementation in the application
Feature in example and embodiment can be mutually combined.
Embodiment 1
As shown in figure 1, the utility model embodiment provides the cooking apparatus that a kind of grillING is baked and banked up with earth, the cooking apparatus can be with
It is baking box, air fryer or baking machine, is a kind of baking box in the present embodiment, including housing, the heating that is arranged in housing
Element, master control borad and warning device, one end of the heating element heater are connected by relay with live wire, and the other end connects with zero line
Connect, the master control borad is by the break-make of heating element heater described in the Control, and the heating element heater is heating tube, Ke Yili
Solution, heating element heater are not limited to heating tube or halide torch；When the master control borad is provided with main control chip and relay adhesive
Between and release time detection circuit, is provided with the maximum actuation time in main control chip.
The operating temperature of baking box is set first, in the present embodiment, so that operating temperature is 180 DEG C as an example, when setting work
After temperature, before baking box life's work, pickup time detection and release time detection are first carried out, then control relay is inhaled
Close, then baking box just starts formal heating, and when temperature reaches T1=182 DEG C, main control chip sends release signal in advance, control
Relay is disconnected, so that baking box stops heating, baking box, which stops temperature after heating, gradually to be reduced, when temperature declines T2=178
DEG C when, main control chip sends pickup signal in advance, control relay adhesive again, so as to which baking box continues to begin to warm up, so follows
Ring, so as to which the temperature of baking box is effectively controlled between 178 DEG C and 182 DEG C, it is sufficiently close to target temperature, so that cooking
Temperature substantially constant during preparing food, food mouthfeel are more preferable.Because main control chip sends control signal in advance, therefore, relay is accurate
Really adhesive and release near zero passage, even if for keeping temperature constant and frequent adhesive relay will not also occur for relay
Heating tube caused by adhesion can not disconnect, and so as to ensure the reliable cooking food under the constant regulation of temperature, prevent relay from gluing
Culinary art cavity temperature is too high caused by even, efficiently solves baking box accurate temperature controlling and the conflict reliably heated.
Wherein, T1 and T2 temperature gap is 5 DEG C., may if temperature is excessive because T1 and T2 temperature gaps are smaller
The mouthfeel of part of the food can be influenceed.
The detection circuit includes symmetrically arranged first detection branch and the second detection branch, first detection branch
One end be connected with relay input, the other end connection main control chip, one end of second detection branch and relay are defeated
Go out end connection, other end connection main control chip, the detection branch includes：Isolation detection circuit；It is provided with the main control chip
Timer；Because T1 and T2 temperature gaps are smaller, therefore in the frequent adhesive of cooking process repeat circuit and release, pass through and detect electricity
The pickup time and release time of relay are detected in real time in road so that relay acts in zero crossings exactly, and is inhaling
Conjunction time and release time can feed back to master control borad in time when changing, and therefore, the control to heating tube is relatively reliable, has
Effect prevents heating tube caused by relay actuation time change from can not disconnect, can so that the computer heating control of baking box is more stable
Lean on.
The isolation detection circuit includes：Including optocoupler, optocoupler protection circuit and partial pressure current-limiting circuit；The optocoupler protection
Circuit is arranged between the photophore of the relay output end and optocoupler, for protecting the optocoupler forward conduction and reversely protecting
Shield, the partial pressure current-limiting circuit is arranged between the light-receiving device of the optocoupler and the main control chip, for entering to place branch road
Row partial pressure and/or current-limiting protection；
Based on above-mentioned, also include in the present embodiment：Relay protection circuit, the relay protection circuit are connected to relay
Between device Enable Pin and DC supply input, for carrying out partial pressure and/or current-limiting protection to the relay.
Wherein, the optocoupler protection circuit includes two current-limiting resistances of series connection, the current-limiting resistance and the optocoupler
Photophore is connected, and the resistance of current-limiting resistance is 30-150K Ω, and current-limiting resistance is 102K Ω in the present embodiment.
The optocoupler protection circuit also includes the clamp diode in parallel with the photophore of the optocoupler.
Because two-way detection branch is full symmetric in the present embodiment, relay-operating time and release time are detected, so
The conduction detection error of two-way can cancel out each other, and error is in ns levels, it is possible to ignore hardware circuit error, according to acquisition
Relay-operating time and release time, with control relay adhesive and it can discharge all on the zero-potential point of alternating current, and then
Relay service life is improved, at 10W times, the present embodiment carries existing product repeat circuit adhesive number up to 50-100W times
High relay on-off frequency, beneficial to the requirement of product accurate temperature controlling.
The working frequency of the main control chip is more than 12MHz, and to ensure accuracy of detection, the present embodiment is with middle clever 79F3212
Clock frequency 16.6MHz, the instruction cycle be 0.0602us exemplified by illustrate pickup time TCWith release time TODetection process：Such as
Shown in Fig. 1, the first detection branch is connected with the second detection branch by symmetrical connection end ACN, is specifically included：Optocoupler (IC1；
IC2), series connection two current-limiting resistances (R2 R3；R7 R8), the conducting diode (D1 to be connected with the current-limiting resistance；D4),
Clamp diode (the D2 in parallel with the photophore of the optocoupler；D5), and it is connected to the defeated of direct-flow input end and the optocoupler
Go out end and be connected to the output end of main control chip and the optocoupler two divider resistances (R1 R6；R4\R9)；Relay protection
Circuit includes：Protection diode (D3), the protection triode (Q1) at the relay both ends are connected in parallel on, and is connected to institute
State the base stage of relay Enable Pin and the protection triode and the base stage and two partial pressure electricity of ground connection of the protection triode
Hinder (R5；R10).
First, pickup time TCDetection：
Under S11, relay release conditions, when alternating current is in positive half period, when now detection ACL_ZO is low level,
RELAY_ZO is high level；
S12, main control chip send the control instruction of attracting electric relay, and the timer in main control chip starts timing, passes through
Step S11, positive half period adhesive of the relay in alternating current is effectively ensured, after adhesive, the output end signal of relay is jumped
Become, and the signal is efficiently transmitted to main control chip, so as to effectively prevent when alternating current is in negative adhesive caused by semiaxis adhesive
Between calculate mistake；S13, after relay adhesive, heating element heater is begun to warm up, and the signal RELAY_ZO of the second branch road occurs
Saltus step, i.e., low level is changed into from high level, now relay really adhesive, reads the time in timer, as adhesive
Time.
If the time of S14, timer is more than the maximum actuation time, then it is assumed that relay break down can not adhesive, it is main
Control chip sends signal to warning device and reminds user.So as to when cooking apparatus heating system breaks down, when can be with first
Between send prompting message, the effective guarantee safety of product.
2nd, release time TODetection：
Under S22, relay attracting state, when alternating current is in positive half period, when now detection ACL_ZO is low level,
RELAY_ZO is low level；
S22, main control chip send the control instruction of release relay, and the timer in main control chip starts timing；
S23, after relay discharges, heating element heater stops heating, and saltus step occurs for the signal RELAY_ZO of the second branch road,
High level is changed into from low level, now relay has really discharged, and reads the time in timer, as release time.
If the time of S24, timer is more than the maximum actuation time, then it is assumed that relay, which breaks down, to be discharged, main
Control chip sends signal to warning device and reminds user.
It is single detection process above, in order to which more accurate calculate can detect repeatedly, and carries out limit filtration processing, filter out
The impulse disturbances being likely to occur, time when obtaining more accurate pickup time and releasing.
The pulsewidth of low and high level in before carrying out above-mentioned detection firstly the need of clear and definite zero cross signal, the suction of relay, when putting
Between detection need to be detected under the wider level of pulsewidth, compatible can so detect pickup time longer relay.
Because this embodiment scheme is using zero crossing adhesive and release, therefore, electricity will not be produced at the contact of relay
Arc, while disturbance voltage peak-to-peak value and average are all smaller, effectively inhibit EMI.The present embodiment is solving baking box accurate temperature controlling
On the basis of unstable contradiction is heated, influence when also effectively prevent baking box work to other electric equipment products.
It is appreciated that the present embodiment is not limited to baking box, air fryer is can be also used for, due to being provided with wind in air fryer
Fan, fan brings the heat of heating tube in cooking cavity into, heat and radiate it is all faster than baking box, therefore air fryer can
By property require it is higher than baking box, once occur relay adhesion or can not adhesive, then the temperature in cooking cavity can be inclined quickly
From desired value, in fact it could happen that food is not baked or burned phenomenon, or even causes potential safety hazard.
It is appreciated that the present embodiment can also be applied to baking machine, present baking machine generally use up and down enter by heating tube
Row heating, due to upper and lower heating tube intermittent-heating, an intermittent-heating cycle, such as lower heat-generating pipe is begun to warm up, upper heating
Pipe stops heating, then lower baking disk is gradually heating to 190 DEG C by 170 DEG C, and upper baking pan drops to 170 DEG C by 190 DEG C, upper lower baking disk
The temperature difference of upper lower burrs is larger, and maximum is up to 20 DEG C,, can using the scheme of the present embodiment so as to influence the mouthfeel of cooking food
Effectively to shorten the switching time of heating tube up and down, so that the temperature difference of upper baking pan and lower baking disk is smaller, i.e., in synchronization,
Food is two-sided substantially homogeneously to be heated, so that the food of culinary art is tastier.
Embodiment 2
As shown in Fig. 2 the utility model embodiment provides the cooking apparatus that a kind of grillING is baked and banked up with earth, the difference with embodiment 1
It is that the detection branch includes：Non-isolated detection circuit；
The non-isolated detection circuit includes：Including triode and triode protection circuit；The triode protection circuit
It is arranged between the relay output end and triode, for protecting the triode forward conduction and reverse protection；Wherein,
Triode is managed for NPN；
Wherein, the triode protection circuit includes current-limiting resistance, the base stage string of the current-limiting resistance and the triode
Connection, the resistance of the resistance is 150K Ω.
Further, the triode protection circuit can also include being connected in parallel between the transistor base and emitter stage
Current-limiting resistance and be connected to relay output end and ground connection between diode.
The working frequency of the main control chip is more than 12MHz, and to ensure accuracy of detection, the present embodiment is with middle clever 79F3212
Clock frequency 16.6MHz, the instruction cycle be 0.0602us exemplified by illustrate pickup time TCWith release time TODetection process：Such as
Shown in Fig. 2, the first detection branch and the second detection branch specifically include：Triode (Q3；Q 2), the base stage with the triode
Current-limiting resistance (the R11 of series connection；R14), the current-limiting resistance (R12 being connected in parallel between the transistor base and emitter stage；R15),
Diode (the D11 being connected between relay output end and ground connection；D 13).
The pickup time T of the present embodimentCDetection and release time TODetect same as Example 1, then this does not do detailed opinion
State.
NM part in the present embodiment, with embodiment 1.
Although the embodiment disclosed in the utility model is as above, its content is only to facilitate understand the utility model
Technical scheme and the embodiment that uses, be not intended to limit the utility model.Any the utility model art
Interior technical staff, can be in the form of implementation on the premise of the core technology scheme disclosed in the utility model that do not depart from
With any modification and change are made in details, but the protection domain that the utility model is limited still must be with appended claims
The scope of restriction is defined.
Claims (10)
1. the cooking apparatus that a kind of grillING is baked and banked up with earth, including housing, the heating element heater and master control borad that are arranged in housing, the heating
One end of element is connected by relay with live wire, and the other end is connected with zero line, and the master control borad passes through the Control
The break-make of the heating element heater, it is characterised in that：
The master control borad is provided with main control chip and the detection circuit of relay-operating time and release time, the detection circuit bag
Symmetrically arranged first detection branch and the second detection branch are included, one end and the relay input of first detection branch connect
Connect, other end connection main control chip, one end of second detection branch is connected with relay output end, other end connection master control
Chip.
2. the cooking apparatus that grillING according to claim 1 is baked and banked up with earth, it is characterised in that：Timing is provided with the main control chip
Device, the timer are used to calculating control instruction and send time difference with the second detection branch signal saltus step, main control chip according to
The data of timer send control instruction, the work of control heating element heater or stopping to relay in advance.
3. the cooking apparatus that grillING according to claim 2 is baked and banked up with earth, it is characterised in that：The control instruction is in the first detection
Branch input signal is to be sent under high level state.
4. the cooking apparatus that grillING according to claim 2 is baked and banked up with earth, it is characterised in that：The cooking apparatus also includes alarm
Device, the main control chip is interior to be provided with the maximum actuation time, and when the time of timer is more than the maximum actuation time, main control chip leads to
Cross warning device and send alarm signal.
5. the cooking apparatus that grillING according to claim 1 is baked and banked up with earth, it is characterised in that：The working frequency of the main control chip
More than 12MHz.
6. the cooking apparatus that grillING according to claim 1 is baked and banked up with earth, it is characterised in that：First detection branch and second
Detection branch is equipped with optocoupler, and the input side of the optocoupler electrically connects with the signal end of the relay, the output end and institute
State main control chip electrical connection.
7. the cooking apparatus that grillING according to claim 6 is baked and banked up with earth, it is characterised in that：First detection branch and second
Detection branch is equipped with current-limiting resistance, and the current-limiting resistance is connected with the input side of the optocoupler.
8. the cooking apparatus that grillING according to claim 7 is baked and banked up with earth, it is characterised in that：The current-limiting resistance is adjustable electric
Resistance；Or the resistance of multiple series connection.
9. the cooking apparatus that grillING according to claim 6 is baked and banked up with earth, it is characterised in that：First detection branch and second
Detection branch is equipped with the clamp diode in parallel with the optocoupler input side.
10. the cooking apparatus that grillING according to claim 1 is baked and banked up with earth, it is characterised in that：First detection branch and
Two detection branch are equipped with triode, and the signal end of the relay is connected with transistor base, colelctor electrode or emitter stage and master
Control chip electrical connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621463154.5U CN206867133U (en) | 2016-12-29 | 2016-12-29 | The cooking apparatus that a kind of grillING is baked and banked up with earth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621463154.5U CN206867133U (en) | 2016-12-29 | 2016-12-29 | The cooking apparatus that a kind of grillING is baked and banked up with earth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206867133U true CN206867133U (en) | 2018-01-12 |
Family
ID=61326179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621463154.5U Active CN206867133U (en) | 2016-12-29 | 2016-12-29 | The cooking apparatus that a kind of grillING is baked and banked up with earth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206867133U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873359A (en) * | 2018-08-31 | 2020-03-10 | 广东美的环境电器制造有限公司 | Control circuit, method and temperature control equipment |
-
2016
- 2016-12-29 CN CN201621463154.5U patent/CN206867133U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873359A (en) * | 2018-08-31 | 2020-03-10 | 广东美的环境电器制造有限公司 | Control circuit, method and temperature control equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104338161B (en) | A kind of disinfection cabinet power control device and method | |
| CN106444890B (en) | Power control circuit, Poewr control method and temperature detect switch (TDS) condition detection method based on zero passage detection | |
| CN106686786B (en) | Electromagnetic heater and its control method and control circuit | |
| CN206867133U (en) | The cooking apparatus that a kind of grillING is baked and banked up with earth | |
| CN102781130B (en) | Large-power electromagnetic cooker circuit based on power electronic technology | |
| CN204576338U (en) | Power conditioning circuitry and cooking apparatus | |
| CN104104059B (en) | Micro-wave oven and its safety protective circuit and safety protection control method | |
| CN106287863A (en) | Electromagnetic heater and control method thereof and control circuit | |
| CN103075810B (en) | Power control device and water heater | |
| CN207279793U (en) | A kind of wind heater device with overtemperature protection | |
| KR200445400Y1 (en) | Driving device of magnetic field heating wire for bedding | |
| CN202384759U (en) | Circuit for suppressing surge current | |
| CN104503520B (en) | A kind of power distribution cabinet internal heater ON-OFF control circuit | |
| CN108284265A (en) | Fully automatic electric soldering iron | |
| CN207166797U (en) | Safety protective circuit and household heating electrical equipment for household heating electrical equipment | |
| CN213216505U (en) | Control circuit for electric heating cup | |
| CN207508482U (en) | Intelligent electric iron | |
| CN201226443Y (en) | Self-locking protection device for heating electric appliance | |
| CN102394619B (en) | Automatic household power supply switch having electricity limiting function and anti-lightning function | |
| CN203241841U (en) | Integrated-control flexible electric heating appliance | |
| CN203480335U (en) | PTC/NTC double-temperature-control control device | |
| CN203015157U (en) | High-power induction cooker circuit based on power electronics | |
| CN207491225U (en) | Heat-preservation control circuit and electric heating equipment | |
| CN208957638U (en) | Cooking utensil and control circuit thereof | |
| CN102676984B (en) | Power supply device for automatically controlling temperature rise and heat preservation of glow plasma nitriding furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230609 Address after: Building 2, No. 52, 22nd Street, Baiyang Street, Qiantang New District, Hangzhou City, Zhejiang Province, 310000 Patentee after: Hangzhou Jiuchuang Home Appliances Co.,Ltd. Address before: No. 999, Mei Li Road, Huaiyin District, Ji'nan, Shandong Patentee before: JOYOUNG Co.,Ltd. |
|
| TR01 | Transfer of patent right |