CN202647918U - Induction cooker with anti-explosion pipe - Google Patents
Induction cooker with anti-explosion pipe Download PDFInfo
- Publication number
- CN202647918U CN202647918U CN 201220160216 CN201220160216U CN202647918U CN 202647918 U CN202647918 U CN 202647918U CN 201220160216 CN201220160216 CN 201220160216 CN 201220160216 U CN201220160216 U CN 201220160216U CN 202647918 U CN202647918 U CN 202647918U
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- wire coil
- electromagnetic wire
- electromagnetic
- magnet
- upper magnet
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- Expired - Lifetime
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- 238000004880 explosion Methods 0.000 title claims abstract description 18
- 230000006698 induction Effects 0.000 title abstract 8
- 229920001971 elastomer Polymers 0.000 claims description 20
- 239000000806 elastomer Substances 0.000 claims description 20
- 230000009471 action Effects 0.000 claims description 9
- 239000003292 glue Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 abstract description 3
- 230000010355 oscillation Effects 0.000 abstract 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000008859 change Effects 0.000 description 8
- 238000004093 laser heating Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000220317 Rosa Species 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
Images
Abstract
The utility model discloses an induction cooker with an anti-explosion pipe. The induction cooker comprises a shell and an electromagnetic wire coil arranged in the shell, and an adjusting mechanism for adjusting the distance between the electromagnetic wire coil and an induction cooker panel is arranged in the shell. The induction cooker is simple in structure and convenient to manufacture, internal mechanisms are automatically adjusted by detecting application conditions of service power, market power grid voltage and cookware used by users, oscillation circuit parameters of the induction cooker are dynamically adjusted, so that a core switch device IGBT (insulated gate bipolar transistor) of an oscillation circuit constantly works under a good working condition, the induction cooker is ensured to safely and reliably work, the damage probability of the induction cooker caused by difference of a power grid, the cookware and working power is reduced, continuous lower-power heating can be realized, and the pipe explosion rate is reduced.
Description
Technical field
The utility model relates to household electrical appliance, particularly a kind of electromagnetic oven of explosion stack.
Background technology
At present the electromagnetic oven of family expenses produces alternating magnetic field with the electric capacity vibration of shaking of IGBT control drum harmony substantially, thereby produce eddy current at pan, convert electrical energy into heat energy, need in the process to guarantee that IGBT realizes soft switch, or be the ZVT low-voltage switches, guarantee product reliability.In case electromagnetic oven designs resonant capacitance and inductance can't change substantially, resonant parameter is fixed, simultaneously pan is changed substantially without detecting, because urban network electricity press to change, electromagnetic oven uses pan to change or mobile and user uses the variation of heating power, cause IGBT often can't realize ZVT, and at switch under high pressure, such as low-power laser heating or special pan, IGBT often is operated under the abominable voltage environment, thereby cause that the IGBT heating is serious, power consumption increases, and causes the problems such as IGBT booster rate height.Also be difficult to simultaneously lower cost and higher reliability and realize the low-power laser heating.
Electromagnetic wire coil and the distance between the pan of existing most of electromagnetism cookers such as electromagnetic stove are nonadjustable.In real work, because different pans, its magnetic property is different, can cause the resonant frequency of electromagnetic stove different, and the machine step that resonant frequency is high is high, and is also high for the temperature rise of IGBT, causes easily the machine booster.Under different voltages, different capacity, the step of IGBT is also different in addition, and usually lower high with pan voltage, the step that power is low is also high, causes easily the IGBT booster of machine.
Summary of the invention
Problem to be solved in the utility model just provides a kind of electromagnetic oven of explosion stack, simple in structure, easily manufactured, use power, market line voltage, pan applicable cases by detecting the user, automatically adjust internal mechanism, dynamically adjust electromagnetic oven oscillating circuit parameter, oscillating circuit core switching device IGBT is always worked under the better duty, guarantee product safety, reliably working, reduce the damage probability that electromagnetic oven causes because of electrical network difference, pan difference, operating power difference, simultaneously can realize lower low-power laser heating, reduce the booster rate.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of electromagnetic oven of explosion stack, comprise casing and the electromagnetic wire coil that is located in the casing, it is characterized in that: be provided with the governor motion of adjusting the distance between electromagnetic wire coil and the electromagnetic oven panel in the described casing.The utility model has solved in electromagnetic oven work, because the magnetic property difference of different pans causes in the different situation of the resonant frequency of electromagnetic oven, after utilizing governor motion that the distance between electromagnetic wire coil and the pan is adjusted, resonant frequency has obtained effective adjusting, reduce the temperature rise of IGBT, avoided the machine booster.
Further, described governor motion is by the adjusting module control action that is located on the master control borad, and described master control borad is provided with output order makes the governor motion action to adjusting module central processing module.
Further, described governor motion comprises elastic positioning member and the electric assembly that is used for locating electromagnetic wire coil between the lower cover that is located at electromagnetic wire coil and described casing and electromagnetic wire coil is applied elastic force, described electric assembly is by described adjusting module control action, and described elastic positioning member is opposite to the force direction of electromagnetic wire coil with electric assembly to the elastic force of electromagnetic wire coil.
Further, described electromagnetic wire coil is located at described lower cover top, described elastic positioning member comprise be located at down cover the location electromagnetic wire coil column and be located at electromagnetic wire coil and column between elastomer, be provided with the locating part that prevents that electromagnetic wire coil or elastomer from deviating from the top of column.
Further, described electric assembly is electromagnet assembly, described electromagnet assembly comprises the upper magnet that is fixed on the electromagnetic wire coil and is located at the lower magnet of magnet below, described adjusting module is to be located at the control module of controlling size of current in the electromagnet assembly on the master control borad according to the output order of central processing module, and described lower magnet is fixed on lower cover or the master control borad.
Further, the center of described electromagnetic wire coil is provided with centre bore, and described upper magnet is buckled in the centre bore, and perhaps described upper magnet is fixed in the centre bore by glue, and perhaps described upper magnet is fixed by welding in the centre bore; Perhaps the center of described electromagnetic wire coil is provided with central recess, and described upper magnet is placed in the central recess, and described electromagnetic wire coil is provided with and passes electromagnetic wire coil and be threaded with upper magnet upper magnet is fixed on trip bolt in the central recess.
Further, described elastomer is located at the below of electromagnetic wire coil, and heteropole is relative between described upper magnet and the lower magnet; Perhaps described elastomer is located at the top of electromagnetic wire coil, and homopolarity is relative between described upper magnet and the lower magnet.
Further, have one in described upper magnet and the lower magnet at least for electromagnet, around the home coil is electrically connected on the described control module on the described electromagnet.
Further, described central processing module is single-chip microcomputer or hardware handles circuit.
Further, described electromagnetic wire coil is located at described lower cover below, described elastic positioning member comprise be located at down the column that covers and be located at electromagnetic wire coil and column between elastomer, the bottom of described column is provided with the locating part that prevents that electromagnetic wire coil or elastomer from deviating from; Described electromagnet assembly comprises magnet and is located at the lower magnet of magnet below, described master control borad is provided with the control module according to size of current in the output order control electromagnet assembly of central processing module, described upper magnet is fixed on lower cover or the master control borad, and described lower magnet is fixed on the electromagnetic wire coil.
After adopting technique scheme, the utlity model has following advantage: can automatically adjust the operating distance between electromagnetic wire coil and the pan, thereby under different voltages, power, pan, realize that IGBT work back-pressure step meets certain condition of work, realize that IGBT works in the situation of low-temperature-rise, reduce the booster rate.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is the structural representation of the utility model the first embodiment;
Fig. 2 is the schematic diagram that is different from electromagnet assembly the second structure shown in Figure 1;
Fig. 3 is the schematic diagram that is different from the third structure of electromagnet assembly shown in Figure 1;
Fig. 4 is that lower magnet is fixed on down the schematic diagram that covers;
Fig. 5 is the structural representation of upper magnet the first fixed form;
Fig. 6 is the structural representation of upper magnet the second fixed form;
Fig. 7 is the structural representation of upper the third fixed form of magnet;
Fig. 8 is the structural representation that is different from elastomer shown in Figure 1 and electromagnetic wire coil position relationship;
Fig. 9 is the structural representation of the utility model the second embodiment.
The specific embodiment
Embodiment one:
A kind of embodiment of the utility model as shown in Figure 1, a kind of electromagnetic oven of explosion stack comprises casing and is located at electromagnetic wire coil 2 in the casing, is provided with the governor motion of adjusting the distance between electromagnetic wire coil 2 and the electromagnetic oven panel 11 in the described casing.Described governor motion is by the adjusting module control action that is located on the master control borad 53, described master control borad 53 is provided with output order makes the governor motion action to adjusting module central processing module, central processing module generally adopts MCU to realize, also can adopt the hardware handles circuit.In the present embodiment, described governor motion comprises elastic positioning member and the electric assembly that is used for locating electromagnetic wire coil 2 between the lower cover 12 that is located at electromagnetic wire coil 2 and described casing and electromagnetic wire coil 2 is applied elastic force, described electric assembly is by described adjusting module control action, and described elastic positioning member is opposite to the force direction of electromagnetic wire coil 2 with electric assembly to the elastic force of electromagnetic wire coil 2.
Described electromagnetic wire coil 2 is located at described lower cover 12 tops, described elastic positioning member comprise the column 13 that is located on the lower cover 12 location electromagnetic wire coil 2 and be located at electromagnetic wire coil 2 and column 13 between elastomer 3, be provided with the locating part 4 that prevents that electromagnetic wire coil 2 or elastomer from deviating from the top of column 13.Here, preferred described electric assembly is electromagnet assembly, described electromagnet assembly comprises the upper magnet 51 that is fixed on the electromagnetic wire coil 2 and the lower magnet 52 that is located at magnet 51 belows, and described adjusting module is to be located at the control module 54 of controlling size of current in the electromagnet assembly on the master control borad 53 according to the output order of central processing module, and described lower magnet 52 is fixed on the master control borad 53.
Have one in described upper magnet 51 and the lower magnet 52 at least for electromagnet, around the home coil is electrically connected on the described control module 54 on the described electromagnet.For example in the present embodiment, described upper magnet 51 is loadstone or magnetic conductive metal, and described lower magnet 52 is electromagnet, and around the home coil is electrically connected on the described control module 54 on the described lower magnet 52.Perhaps as shown in Figure 2, also can select described lower magnet 52 to be loadstone or magnetic conductive metal, described upper magnet 51 is electromagnet, and around the home coil is electrically connected on the described control module 54 on the described upper magnet 51.Perhaps as shown in Figure 3, described upper magnet 51 is electromagnet, and described lower magnet 52 is electromagnet, and around the home coil is electrically connected on the described control module 54 on the described upper magnet 51, and around the home coil is electrically connected on the described control module 54 on the described lower magnet 52.And as shown in Figure 4, lower magnet 52 also can be fixed on the lower cover 12.
In the present embodiment, the center of described electromagnetic wire coil 2 is provided with centre bore 22, and upper magnet 51 directly is interference fitted in the centre bore 22; Perhaps also can be as shown in Figure 5, described upper magnet 51 is fixed in the centre bore 22 by glue after being positioned in the centre bore 22 again, perhaps is fixed by welding in the centre bore 22; Perhaps as shown in Figure 6, described upper magnet 51 is buckled in the centre bore 22; Perhaps as shown in Figure 7, be provided with central recess 23 at the center of described electromagnetic wire coil 2, described upper magnet 51 is placed in the central recess 23, and described electromagnetic wire coil 2 is provided with and passes electromagnetic wire coil 2 and be threaded with upper magnet 51 upper magnet 51 is fixed on trip bolt 24 in the central recess 23.
In the present embodiment, described elastomer 3 is located at the below of electromagnetic wire coil 2, and heteropole is relative between described upper magnet 51 and the lower magnet 52; Perhaps also can be as shown in Figure 8, described elastomer 3 is located at the top of electromagnetic wire coil 2, homopolarity is relative between described upper magnet 51 and the lower magnet 52.
In addition, described column 13 is provided with two at least, and described electromagnetic wire coil 2 is provided with electromagnetic wire coil 2 fixing holes 21 of suit column 13.Described elastomer 3 is spring or silica gel or shell fragment, preferred here spring, and cost is lower, easy accessibility.In the present embodiment, described locating part 4 is screw or latch on the end end face that is inserted in column 13, and the diameter at the top of described screw or latch is greater than the diameter of described electromagnetic wire coil 2 fixing holes; Perhaps described locating part 4 is screw or latch on the end sidewalls that is inserted in column 13; Perhaps described locating part 4 is the shaft block ring on the end sidewalls that is stuck in column 13, and the diameter of shaft block ring is greater than the diameter of described electromagnetic wire coil 2 fixing holes.
Embodiment two:
As shown in Figure 9, described electromagnetic wire coil 2 is located at described lower cover 12 belows, described elastic positioning member comprise the column 13 that is located on the lower cover 12 and be located at electromagnetic wire coil 2 and column 13 between elastomer 3, the bottom of described column 13 is provided with the locating part 4 that prevents that electromagnetic wire coil 2 or elastomer 3 from deviating from; Described electromagnet assembly comprises magnet 51 and is located at the lower magnet 52 of magnet 51 belows, described master control borad 53 is provided with the control module 54 according to size of current in the output order control electromagnet assembly of central processing module, described upper magnet 51 is fixed on lower cover 12 or the master control borad 53, and described lower magnet 52 is fixed on the electromagnetic wire coil 2.The difference of this embodiment and embodiment one mainly is exactly the change of the correspondence position relation of electromagnetic wire coil 2 and lower cover 12, and other corresponding structures have been carried out adaptations.
Electromagnetic oven of the present utility model has comprised the device that uses the electromagnetic wire coil heating, such as electromagnetic oven, electromagnetic stove or electromagnetic cooker.
The utility model can pass through the voltage detecting voltage change, resonant frequency detects and judges that pan changes, power detection is judged the electromagnetic oven duty; Realize the adjustment of electromagnetic oven duty self adaptation by dynamic change electromagnetic oven wire coil inductance parameters; By adjusting drum and panel upper surface distance, realize changing drum effective inductance amount, reach change electromagnetic oven resonant parameter purpose, thereby realize the lower small-power laser heating of electromagnetic oven.IGBT operating switch voltage can be adjusted automatically like this, remains at the ideal operation state, such as ZVT; The adjustment mode is to change the drum inductance value by physical arrangement, avoids using device switching realization inductance variation or the capacitance variations such as relay, and reducing the cost increases substantially reliability simultaneously; Will significantly reduce the electromagnetic oven product and use damage probability, improve electromagnetic oven to the adaptive capacity of environment, pan application etc., can realize lower small-power laser heating simultaneously, reduce the wastage, significantly improve the quality of products, reliability, adaptive capacity to environment.
Concrete handling process of the present utility model is as follows: electromagnetic oven carries out first voltage, current detecting judges that power changes, and judges that by resonant frequency variation detection pan changes; Voltage is higher when detecting, when resonant frequency changes, strengthen drum and panel distance, and this moment, the drum inductance value rose, and resonant frequency descends, and the pressure drop of IGBT switch descends; Voltage is lower when detecting, when resonant frequency changes, reduce drum and panel distance, and this moment, the drum inductance value descended, and resonant frequency rises, and the IGBT pressure drop is risen.By above-mentioned adjustment, the utility model has solved in electromagnetic oven work, because the magnetic property difference of different pans causes in the different situation of the resonant frequency of electromagnetic stove, after utilizing governor motion that the distance between electromagnetic wire coil and the pan is adjusted, resonant frequency has obtained effective adjusting, reduce the temperature rise of IGBT, avoided the machine booster.
Except above preferred embodiment, the utility model also has other embodiment, those skilled in the art can make various changes and distortion according to the utility model, only otherwise break away from spirit of the present utility model, all should belong to the defined scope of the utility model claims.
Claims (10)
1. the electromagnetic oven of an explosion stack comprises casing and the electromagnetic wire coil (2) that is located in the casing, it is characterized in that: be provided with the governor motion of adjusting the distance between electromagnetic wire coil and the electromagnetic oven panel (11) in the described casing.
2. the electromagnetic oven of a kind of explosion stack according to claim 1, it is characterized in that: described governor motion is by the adjusting module control action that is located on the master control borad (53), and described master control borad is provided with output order makes the governor motion action to adjusting module central processing module.
3. the electromagnetic oven of a kind of explosion stack according to claim 2, it is characterized in that: described governor motion comprises elastic positioning member and the electric assembly that is used for locating electromagnetic wire coil between the lower cover (12) that is located at electromagnetic wire coil and described casing and electromagnetic wire coil is applied elastic force, described electric assembly is by described adjusting module control action, and described elastic positioning member is opposite to the force direction of electromagnetic wire coil with electric assembly to the elastic force of electromagnetic wire coil.
4. the electromagnetic oven of a kind of explosion stack according to claim 3, it is characterized in that: described electromagnetic wire coil is located at described lower cover top, described elastic positioning member comprise be located at down cover the location electromagnetic wire coil column (13) and be located at electromagnetic wire coil and column between elastomer (3), be provided with the locating part (4) that prevents electromagnetic wire coil or elastomer and deviate from the top of column.
5. the electromagnetic oven of a kind of explosion stack according to claim 4, it is characterized in that: described electric assembly is electromagnet assembly, described electromagnet assembly comprises the upper magnet (51) that is fixed on the electromagnetic wire coil and is located at the lower magnet (52) of magnet below, described adjusting module is to be located at the control module (54) of controlling size of current in the electromagnet assembly on the master control borad according to the output order of central processing module, and described lower magnet is fixed on lower cover or the master control borad.
6. the electromagnetic oven of a kind of explosion stack according to claim 5, it is characterized in that: the center of described electromagnetic wire coil is provided with centre bore (22), described upper magnet is buckled in the centre bore, perhaps described upper magnet is fixed in the centre bore by glue, and perhaps described upper magnet is fixed by welding in the centre bore; Perhaps the center of described electromagnetic wire coil is provided with central recess (23), and described upper magnet is placed in the central recess, and described electromagnetic wire coil is provided with and passes electromagnetic wire coil and be threaded with upper magnet upper magnet is fixed on trip bolt (24) in the central recess.
7. the electromagnetic oven of a kind of explosion stack according to claim 6, it is characterized in that: described elastomer is located at the below of electromagnetic wire coil, and heteropole is relative between described upper magnet and the lower magnet; Perhaps described elastomer is located at the top of electromagnetic wire coil, and homopolarity is relative between described upper magnet and the lower magnet.
8. according to claim 5 or the electromagnetic oven of 6 or 7 described a kind of explosion stacks, it is characterized in that: have at least one to be electromagnet in described upper magnet and the lower magnet, around the home coil is electrically connected on the described control module on the described electromagnet.
9. the electromagnetic oven of a kind of explosion stack according to claim 2, it is characterized in that: described central processing module is single-chip microcomputer or hardware handles circuit.
10. the electromagnetic oven of a kind of explosion stack according to claim 2, it is characterized in that: described electromagnetic wire coil is located at described lower cover below, described elastic positioning member comprise be located at down the column that covers and be located at electromagnetic wire coil and column between elastomer, the bottom of described column is provided with the locating part that prevents that electromagnetic wire coil or elastomer from deviating from; Described electromagnet assembly comprises magnet and is located at the lower magnet of magnet below, described master control borad is provided with the control module according to size of current in the output order control electromagnet assembly of central processing module, described upper magnet is fixed on lower cover or the master control borad, and described lower magnet is fixed on the electromagnetic wire coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220160216 CN202647918U (en) | 2012-04-16 | 2012-04-16 | Induction cooker with anti-explosion pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220160216 CN202647918U (en) | 2012-04-16 | 2012-04-16 | Induction cooker with anti-explosion pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202647918U true CN202647918U (en) | 2013-01-02 |
Family
ID=47417017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220160216 Expired - Lifetime CN202647918U (en) | 2012-04-16 | 2012-04-16 | Induction cooker with anti-explosion pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202647918U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114326453A (en) * | 2020-10-10 | 2022-04-12 | 佛山市顺德区美的电热电器制造有限公司 | Control method of cooking appliance, cooking appliance and computer readable storage medium |
-
2012
- 2012-04-16 CN CN 201220160216 patent/CN202647918U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114326453A (en) * | 2020-10-10 | 2022-04-12 | 佛山市顺德区美的电热电器制造有限公司 | Control method of cooking appliance, cooking appliance and computer readable storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |
|
| CP02 | Change in the address of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |
|
| CX01 | Expiry of patent term |