CN204091656U - A kind of electric food warmer of anti-dry - Google Patents
A kind of electric food warmer of anti-dry Download PDFInfo
- Publication number
- CN204091656U CN204091656U CN201420198733.6U CN201420198733U CN204091656U CN 204091656 U CN204091656 U CN 204091656U CN 201420198733 U CN201420198733 U CN 201420198733U CN 204091656 U CN204091656 U CN 204091656U
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- food warmer
- electric food
- temperature
- controller
- target temperature
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- 230000006870 function Effects 0.000 claims abstract description 56
- 238000009841 combustion method Methods 0.000 abstract description 21
- 238000010411 cooking Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
Abstract
The utility model discloses a kind of electric food warmer of anti-dry, relate to kitchen appliance technical field, easily cause fuse to blow when solving current electric food warmer dry combustion method protection, cause the problem that maintenance cost is high.A kind of electric food warmer of anti-dry, comprise a pot body, lid, pot courage, heater and control device, described control device comprises controller and temperature measuring equipment, described temperature measuring equipment is connected to controller, described electric food warmer is provided with at least two function menus, described controller receives the function menu of the current selection of user, described temperature measuring equipment exports the Current Temperatures detected in the electric food warmer course of work to controller, described controller comprises control unit and memory, have in described memory and store the different target temperature corresponding with at least two function menus, described control unit obtains the target temperature of corresponding current function menu in memory, described control unit exports the control signal of Current Temperatures higher than target temperature, control heater stop heats.The utility model embodiment mainly applies to the kitchen appliance needing to carry out dry combustion method protection, as electric pressure cooking saucepan, electric cooker and electric cooking pot etc.
Description
Technical field
The utility model relates to kitchen appliance technical field, particularly relates to the electric food warmer of anti-dry in kitchen appliance.
Background technology
User is when cooking with electric food warmer, often due to the situation of misoperation generation dry combustion method, in order to carry out dry combustion method protection to electric food warmer, prior art is equipped with fuse on electric food warmer, when electric food warmer dry combustion method temperature reaches the fusing-off temperature of fuse, fuse disconnects, and cuts off the electricity supply and carries out dry combustion method protection; Another kind of comparatively conventional dry combustion method protection is, on electric food warmer, temperature controller is housed, and when dry combustion method temperature exceedes temperature controller break-off signal, temperature controller disconnects, and heater stop heating is protected; Also have electronic type electric food warmer by arranging fixed temperature at controller, when electric food warmer dry combustion method temperature exceedes this fixed temperature, program controlled heater device stops heating protecting.
Realizing and using above-mentioned electric food warmer to carry out in the process of dry combustion method protection, inventor finds that in prior art, at least there are the following problems: when electric food warmer generation dry combustion method, fuse can blow under normal circumstances, could use after electric food warmer must keep in repair; If fuse is not in place or the break-off signal of temperature controller arranges unreasonable, dry combustion method temperature can be caused too high, fire may be caused time serious to occur, cause the permanent damages of electric food warmer; And employing arranges at controller the electronic type electric food warmer that fixed temperature carries out dry combustion method protection; very big-difference can be there is in the maximum temperature that can reach in cooking process due to different function menus; higher temperature spot can be selected dry combustion method protection is carried out when arranging fixed temperature; heater temperature upper punch as electric food warmer is too fast; very large to the infringement of plastic parts and inner bag etc., equally also can cause the situation that fuse blows.
Utility model content
The electric food warmer that technical problem to be solved in the utility model is to overcome the deficiencies in the prior art and provides a kind of anti-dry, this electric food warmer can carry out dry combustion method protection safely and effectively, improves the service life of electric food warmer, greatly reduces maintenance cost.
For achieving the above object, embodiment of the present utility model adopts following technical scheme:
A kind of electric food warmer of anti-dry described in the utility model embodiment, comprise a pot body, lid, pot courage, heater and control device, described control device comprises controller and temperature measuring equipment, described temperature measuring equipment is connected to controller, described electric food warmer is provided with at least two function menus, described controller receives the function menu of the current selection of user, it is characterized in that, described temperature measuring equipment exports the Current Temperatures detected in the electric food warmer course of work to controller, described controller comprises control unit and memory, have in described memory and store the different target temperature corresponding with at least two function menus, described control unit obtains the target temperature of corresponding current function menu in memory, described control unit exports the control signal of Current Temperatures higher than target temperature, control heater stop heats.
Further, described at least two function menus comprise the first function menu and the second function menu, the target temperature of corresponding described first function menu is first object temperature, the target temperature of corresponding described second function menu is the second target temperature, and described second target temperature is greater than described first object temperature.
Further, described control device also comprises fuse, and the fusing-off temperature of described fuse is greater than all target temperatures.
Further, described controller also comprises a/d converter, and described a/d converter is connected with temperature measuring equipment and control unit respectively.
Further, described controller or described control unit are MCU.
A kind of electric food warmer of anti-dry described in the utility model embodiment, comprise a pot body, lid, pot courage, heater and control device, described control device comprises controller, temperature measuring equipment and cue circuit, described controller is connected with temperature measuring equipment and cue circuit respectively, described electric food warmer is provided with at least two function menus, described controller receives the function menu of the current selection of user, it is characterized in that, described temperature measuring equipment exports the Current Temperatures detected in the electric food warmer course of work to controller, described controller comprises control unit and memory, have in described memory and store the different target temperature corresponding with at least two function menus, described control unit obtains the target temperature of corresponding current function menu in memory, described control unit exports the control signal of Current Temperatures higher than target temperature to cue circuit, control cue circuit and export information.
Further, described at least two function menus comprise the first function menu and the second function menu, the target temperature of corresponding described first function menu is first object temperature, the target temperature of corresponding described second function menu is the second target temperature, and described second target temperature is greater than described first object temperature.
Further, described control device also comprises fuse, and the fusing-off temperature of described fuse is greater than all target temperatures.
Further, described controller also comprises a/d converter, and described a/d converter is connected with controller with temperature measuring equipment respectively.
Further, described cue circuit comprises indicator lamp, and described information is the light prompt information that indicator lamp sends; Or described cue circuit comprises display unit, described information is the pattern information of display unit display; Or described cue circuit comprises buzzer, described information is the auditory tone cues information that buzzer sends.
The beneficial effects of the utility model:
Electric food warmer described in the utility model is provided with different target temperatures for different function menus, described controller obtains the target temperature in memory, and target temperature and Current Temperatures are compared, when Current Temperatures is lower than target temperature, represent that electric food warmer is working properly, heater is in heated condition; When Current Temperatures is higher than target temperature, represent electric food warmer operation irregularity, described controller output control signal controls heater stop heating, or described controller output control signal control cue circuit output information sends alarm to user.The above electric food warmer is when carrying out dry combustion method protection, safe and effective, improves the service life of electric food warmer, greatly reduces maintenance cost simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of the utility model embodiment one electric food warmer control device;
Fig. 2 is the schematic diagram of the utility model embodiment two electric food warmer control device;
Fig. 3 is the flow chart of the electric food warmer course of work in the utility model embodiment;
Fig. 4 is the schematic diagram that the utility model embodiment one and embodiment two combine.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment one:
With reference to Fig. 1 and Fig. 3, the present embodiment provides a kind of electric food warmer of anti-dry, comprise a pot body, lid, pot courage and control device, this electric food warmer controls its cooking process by control device, wherein control device comprises controller and temperature measuring equipment, and described temperature measuring equipment to be arranged on pot body and to be connected with controller, is provided with heater below described pot courage, be provided with through hole in the middle part of described heater, temperature measuring equipment detects the temperature of pot courage diapire through described through hole; Can certainly be provided with heater at pot courage sidewall, described temperature measuring equipment is for detecting a pot temperature for courage sidewall; Or temperature measuring equipment can also be positioned on lid, carry out fuzzy control by the temperature value input control device detected by temperature measuring equipment, the problem that lid temperature and temperature of boiler there are differences can be solved.Described electric food warmer is provided with at least two function menus, and when user cooks, described controller receives the function menu of the current selection of user.In order to dry combustion method protection can be carried out to electric food warmer preferably; temperature measuring equipment described in the present embodiment exports the Current Temperatures T detected in the electric food warmer course of work to controller; described controller comprises control unit and memory; have in described memory and store the different target temperature corresponding with at least two function menus; described control unit obtains the target temperature of corresponding current function menu in memory; described control unit exports the control signal of Current Temperatures T higher than target temperature, controls heater stop heating.
Described in the present embodiment, at least two function menus comprise the first function menu and the second function menu, the target temperature of corresponding described first function menu is first object temperature T1, the target temperature of corresponding described second function menu is the second target temperature T2, and described second target temperature T2 is greater than described first object temperature T1.Function menu in the present embodiment set by electric food warmer is not limited to two, and can be the corresponding multiple target temperature of multiple function menu, concrete setting be carried out according to actual needs.
The above Current Temperatures T is a variate-value, changes along with the change of electric food warmer cooking temp, the real time temperature of reaction electric food warmer cooking process, and the target temperature stored in memory is multiple fixed values.When user have selected function menu cook time, described control unit obtains the target temperature of corresponding current function menu in memory, and the Current Temperatures T this target temperature and temperature measuring equipment detected compares, when Current Temperatures T is lower than target temperature, represent that electric food warmer is working properly, heater is in heated condition; And when Current Temperatures T is higher than target temperature, represent that electric food warmer operation irregularity, described control unit send control signal and control heater stop heating.
Control device described in the present embodiment also comprises fuse (not shown), the fusing-off temperature of described fuse is greater than all target temperatures, described fuse is directly connected with power supply, when there is dry-fire condition in electric food warmer and the uncontrollable heater stop of control unit heats, described fuse blows, and causes serious damage to avoid the further upper punch of dry combustion method temperature to electric food warmer.
The temperature signal that normal controller receives is the numerical signal value of reaction temperature angle value, instead of temperature value itself, described in the present embodiment, controller also comprises a/d converter, described a/d converter is connected with temperature measuring equipment and control unit respectively, the current temperature value detected by temperature measuring equipment by a/d converter is converted to numerical signal value, control unit obtains this numerical signal value and the target temperature value corresponding with memory compares, and the target temperature value that wherein memory stores also is numerical signal value.
In the present embodiment, temperature measuring equipment comprises thermistor, and thermistor by ground resistance earth, and is connected on controller by current-limiting resistance.
When the above controller is MCU, described MCU is integrated with memory, and described control unit is CPU; Can also control unit be MCU, now described memory bit be electrically connected in the outside of MCU with MCU.
Embodiment two:
With reference to Fig. 2 and Fig. 3, the difference of the present embodiment and embodiment one is: described control device also comprises cue circuit, described controller is connected with temperature measuring equipment and cue circuit respectively, when temperature measuring equipment exports the Current Temperatures T detected in the electric food warmer course of work to a/d converter, described control unit obtains the target temperature of corresponding current function menu in memory, Current Temperatures T and target temperature compare by control unit, as electric food warmer generation dry-fire condition, then control unit exports the control signal of Current Temperatures T higher than target temperature to cue circuit, control cue circuit and export information.
The mode realizing prompting user in the present embodiment can adopt but be not limited to following scheme: described cue circuit comprises indicator lamp, and indicator lamp is connected to controller by current-limiting resistance, and concrete information is the light prompt information that indicator lamp sends; Described cue circuit comprises display unit, and display unit here can be liquid crystal display also can be digital display tube, and described information is pattern information or the Word message of display unit display.Certain cue circuit also can be comparatively conventional auditory tone cues, and described cue circuit comprises buzzer, and buzzer is connected to controller by current-limiting resistance, and concrete information is the auditory tone cues information that buzzer sends.When user receive electric food warmer send prompt messages time, need cut off the electricity supply immediately, avoid the further upper punch of dry combustion method temperature.
With reference to Fig. 4; embodiment one and embodiment two can also be combined the scheme arranging dry combustion method protection by inventor: when control unit sends prompt messages; control heater stop heating simultaneously, as heater occurs that abnormal conditions cannot stop heating, then fuse is blown and protect.
The scheme of dry combustion method protection described in the utility model is equally applicable to the situation being provided with heater at lid; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.
Claims (10)
1. the electric food warmer of an anti-dry, comprise a pot body, lid, pot courage, heater and control device, described control device comprises controller and temperature measuring equipment, described temperature measuring equipment is connected to controller, described electric food warmer is provided with at least two function menus, described controller receives the function menu of the current selection of user, it is characterized in that, described temperature measuring equipment exports the Current Temperatures detected in the electric food warmer course of work to controller, described controller comprises control unit and memory, have in described memory and store the different target temperature corresponding with at least two function menus, described control unit obtains the target temperature of corresponding current function menu in memory, described control unit exports the control signal of Current Temperatures higher than target temperature, control heater stop heats.
2. the electric food warmer of anti-dry according to claim 1, it is characterized in that, described at least two function menus comprise the first function menu and the second function menu, the target temperature of corresponding described first function menu is first object temperature, the target temperature of corresponding described second function menu is the second target temperature, and described second target temperature is greater than described first object temperature.
3. the electric food warmer of anti-dry according to claim 1 or 2, it is characterized in that, described control device also comprises fuse, and the fusing-off temperature of described fuse is greater than all target temperatures.
4. the electric food warmer of anti-dry according to claim 1 or 2, it is characterized in that, described controller also comprises a/d converter, and described a/d converter is connected with temperature measuring equipment and control unit respectively.
5. the electric food warmer of anti-dry according to claim 1 or 2, it is characterized in that, described controller or described control unit are MCU.
6. the electric food warmer of an anti-dry, comprise a pot body, lid, pot courage, heater and control device, described control device comprises controller, temperature measuring equipment and cue circuit, described controller is connected with temperature measuring equipment and cue circuit respectively, described electric food warmer is provided with at least two function menus, described controller receives the function menu of the current selection of user, it is characterized in that, described temperature measuring equipment exports the Current Temperatures detected in the electric food warmer course of work to controller, described controller comprises control unit and memory, have in described memory and store the different target temperature corresponding with at least two function menus, described control unit obtains the target temperature of corresponding current function menu in memory, described control unit exports the control signal of Current Temperatures higher than target temperature to cue circuit, control cue circuit and export information.
7. the electric food warmer of anti-dry according to claim 6, it is characterized in that, described at least two function menus comprise the first function menu and the second function menu, the target temperature of corresponding described first function menu is first object temperature, the target temperature of corresponding described second function menu is the second target temperature, and described second target temperature is greater than described first object temperature.
8. the electric food warmer of anti-dry according to claim 6 or 7, it is characterized in that, described control device also comprises fuse, and the fusing-off temperature of described fuse is greater than all target temperatures.
9. the electric food warmer of anti-dry according to claim 6 or 7, it is characterized in that, described controller also comprises a/d converter, and described a/d converter is connected with temperature measuring equipment and control unit respectively.
10. the electric food warmer of anti-dry according to claim 6 or 7, it is characterized in that, described cue circuit comprises indicator lamp, and described information is the light prompt information that indicator lamp sends; Or described cue circuit comprises display unit, described information is the pattern information of display unit display; Or described cue circuit comprises buzzer, described information is the auditory tone cues information that buzzer sends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420198733.6U CN204091656U (en) | 2014-04-23 | 2014-04-23 | A kind of electric food warmer of anti-dry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420198733.6U CN204091656U (en) | 2014-04-23 | 2014-04-23 | A kind of electric food warmer of anti-dry |
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| Publication Number | Publication Date |
|---|---|
| CN204091656U true CN204091656U (en) | 2015-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420198733.6U Expired - Lifetime CN204091656U (en) | 2014-04-23 | 2014-04-23 | A kind of electric food warmer of anti-dry |
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| CN (1) | CN204091656U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106292784A (en) * | 2015-05-12 | 2017-01-04 | 珠海格力电器股份有限公司 | Electric heating equipment and control method thereof and device |
| CN109237536A (en) * | 2018-09-04 | 2019-01-18 | 佛山市顺德区美的洗涤电器制造有限公司 | The control method and anti-dry system of anti-dry |
| CN109380976A (en) * | 2017-08-04 | 2019-02-26 | 佛山市顺德区美的电热电器制造有限公司 | Electric cooking device, the anti-dry guard method of electric cooking device and device |
| CN109984574A (en) * | 2017-12-29 | 2019-07-09 | 佛山市顺德区美的电热电器制造有限公司 | Pressure cooker and control system and method for the pressure cooker |
| CN110848745A (en) * | 2018-08-21 | 2020-02-28 | 青岛海尔智能技术研发有限公司 | Gas stove control method and device, gas stove, computer equipment and storage medium |
| CN112155406A (en) * | 2020-09-10 | 2021-01-01 | 九阳股份有限公司 | Cooking apparatus and temperature control method thereof |
| CN114690811A (en) * | 2020-12-29 | 2022-07-01 | 广东美的厨房电器制造有限公司 | Temperature control circuit and household electrical appliance |
-
2014
- 2014-04-23 CN CN201420198733.6U patent/CN204091656U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106292784A (en) * | 2015-05-12 | 2017-01-04 | 珠海格力电器股份有限公司 | Electric heating equipment and control method thereof and device |
| CN109380976A (en) * | 2017-08-04 | 2019-02-26 | 佛山市顺德区美的电热电器制造有限公司 | Electric cooking device, the anti-dry guard method of electric cooking device and device |
| CN109984574A (en) * | 2017-12-29 | 2019-07-09 | 佛山市顺德区美的电热电器制造有限公司 | Pressure cooker and control system and method for the pressure cooker |
| CN110848745A (en) * | 2018-08-21 | 2020-02-28 | 青岛海尔智能技术研发有限公司 | Gas stove control method and device, gas stove, computer equipment and storage medium |
| CN109237536A (en) * | 2018-09-04 | 2019-01-18 | 佛山市顺德区美的洗涤电器制造有限公司 | The control method and anti-dry system of anti-dry |
| CN112155406A (en) * | 2020-09-10 | 2021-01-01 | 九阳股份有限公司 | Cooking apparatus and temperature control method thereof |
| CN112155406B (en) * | 2020-09-10 | 2021-11-09 | 九阳股份有限公司 | Cooking apparatus and temperature control method thereof |
| CN114690811A (en) * | 2020-12-29 | 2022-07-01 | 广东美的厨房电器制造有限公司 | Temperature control circuit and household electrical appliance |
| CN114690811B (en) * | 2020-12-29 | 2024-04-19 | 广东美的厨房电器制造有限公司 | Temperature control circuit and household appliance |
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| C14 | Grant of patent or utility model | ||
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| CP02 | Change in the address of a patent holder |
Address after: 250118 999 Mei Li Road, Huaiyin District, Ji'nan, Shandong Patentee after: Joyoung Company Limited Address before: Xinsha Road, Huaiyin District of Ji'nan city of Shandong Province, No. 12 250118 Patentee before: Joyoung Company Limited |
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| CP02 | Change in the address of a patent holder |