CN205002174U - Electromagnetic oven - Google Patents
Electromagnetic oven Download PDFInfo
- Publication number
- CN205002174U CN205002174U CN201520657556.8U CN201520657556U CN205002174U CN 205002174 U CN205002174 U CN 205002174U CN 201520657556 U CN201520657556 U CN 201520657556U CN 205002174 U CN205002174 U CN 205002174U
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- China
- Prior art keywords
- magnet ring
- electromagnetic oven
- power line
- casing
- wound
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- 241001325280 Tricardia watsonii Species 0.000 claims description 3
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 3
- 229910000859 α-Fe Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 230000005855 radiation Effects 0.000 description 15
- 238000004804 winding Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 208000032365 Electromagnetic interference Diseases 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The utility model provides an electromagnetic oven. Electromagnetic oven includes casing and power cord, and the power cord is for the electromagnetic oven power supply and including the first section of the inside that is located the casing and the second section that is located the outside of casing. Electromagnetic oven is still including the first magnetic ring that is located the inside of casing and the second magnetic ring that is located the outside of casing, and wherein some of first section of power cord is twined in first magnetic ring, and some of the second section of power cord is twined in second magnetic ring or the second section of second magnetic ring cover at the power cord. The utility model discloses an electromagnetic oven can effectively restrain the EMC signal, under the condition with the main control board cost of as far as possible reducing, can improve the electromagnetic ovenEMI performance greatly, and simple structure, safe and reliable. In addition, outer magnetic ring can have the sign effect, and the volume is less, guarantees handsome in appearancely.
Description
Technical field
The utility model relates to household electrical appliance, is specifically related to electromagnetic oven.
Background technology
EMI(ElectroMagneticInterference) Conduction Interference and radiation interference two kinds is had.Conduction Interference to refer to by conducting medium the signal coupling (interference) on an electric network to another electric network.Radiation interference refer to interference source by space its signal coupling (interference) to another electric network.At present, domestic electromagnetic oven is according to the relevant EMC project of European EN55011 standard-required test, and wherein conduction and radiation can be defective.As test request will be met by only adjusting electromagnetic oven wiring board to reach, greatly wiring board cost can be increased.
Therefore, how when guaranteeing that electromagnetic oven is tested by EMC, the cost of the least possible increase electromagnetic oven wiring board becomes technical problem urgently to be resolved hurrily.
Utility model content
The purpose of this utility model is to provide the electromagnetic oven that a kind of EMI performance is improved greatly, and does not significantly increase the cost of existing electromagnetic oven.
For achieving the above object, the utility model provides a kind of electromagnetic oven, described electromagnetic oven comprises casing and power line, described power line is that described electromagnetic oven is powered and comprises the first paragraph of the inside being positioned at described casing and be positioned at the second segment of outside of described casing, wherein said electromagnetic oven also comprises the first magnet ring of the inside being positioned at described casing and is positioned at second magnet ring of outside of described casing, a part for the described first paragraph of wherein said power line is wound in described first magnet ring, and a part for the described second segment of described power line is wound in described second magnet ring or described second magnet ring is enclosed within the described second segment of described power line.By being connected with two magnet rings on the power line, one is placed at electromagnetic oven inner, and one is placed on electromagnetic oven outside, greatly can improve electromagnetic oven EMI performance, and structure is simple, safe and reliable.
In one preferred embodiment, the volume of described first magnet ring is 2-5 times of the volume of described second magnet ring.The volume of the first magnet ring is larger thus primarily of its Conduction Interference suppressing power line to bring and radiation interference.The volume of the second magnet ring is less, thus while the Conduction Interference of assisting to suppress power line to bring and radiation interference, makes the outward appearance of electromagnetic oven more attractive in appearance and can play EMI mark action.
In one preferred embodiment, described first magnet ring is 5-25mm to the distance of the madial wall of described casing.Under this distance, suppress the better effects if of Conduction Interference and radiation interference.
In one preferred embodiment, described second magnet ring is 5-15mm to the distance of the lateral wall of described casing.Under this distance, suppress the better effects if of Conduction Interference and radiation interference.
In one preferred embodiment, the described first paragraph number of turns be wound on described first magnet ring of described power line is 1-4 circle, and/or when a part for the described second segment of described power line is wound in described second magnet ring, the described second segment number of turns be wound on described second magnet ring of described power line is 1-3 circle.Under this winding number of turns, suppress the better effects if of Conduction Interference and radiation interference.
In one preferred embodiment, the inside of described casing is provided with draw-in groove, and described first paragraph and described first magnet ring of described power line are fixed on described draw-in groove.Power line is fixed in place, thus the distance of magnet ring relative to casing can be maintained, ensure more stably to suppress Conduction Interference and radiation interference, and this fixed form is simple and reliable.
In one preferred embodiment, the outer wrap of the part be wound on described first magnet ring of the described first paragraph of described first magnet ring and described power line has heat-shrinkable T bush.Arrange heat-shrinkable T bush the part be wound on the first magnet ring of power line to be kept together regularly with the first magnet ring, prevent coiling from surprisingly loosening and bringing the instability of the suppression to Conduction Interference and radiation interference.
In one preferred embodiment, described second magnet ring and described power line integrated injection molding, and/or the inside of described casing is provided with two described first magnet rings, wherein two described first magnet rings are spaced from each other.This structure manufacture is simple and outward appearance is good.The inside of casing arranges two magnet rings, contributes to suppressing EMC signal better.
Preferably, power line is two cores or three heart yearns of tape insulation skin.
Preferably, the first magnet ring and the second magnet ring are made up of ferrite or neodymium iron boron.
Electromagnetic oven of the present utility model can effectively suppress EMC signal, when reduce as far as possible add master control board cost, greatly can improve electromagnetic oven EMI performance, and structure is simple, safe and reliable.In addition, outer magnetic ring can have mark action, small volume, ensures handsome in appearance.
Accompanying drawing explanation
Fig. 1 is the structural representation of a part for electromagnetic oven of the present utility model, and a part for the casing of power line and electromagnetic oven is shown.
Fig. 2 is a modified example of the electromagnetic oven of Fig. 1.
Fig. 3 is another modified example of the electromagnetic oven of Fig. 1.
Detailed description of the invention
Below with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail, understands the purpose of this utility model, feature and advantage so that clearer.It should be understood that embodiment shown in the drawings is not the restriction to the utility model scope, and the connotation just in order to technical solutions of the utility model are described.
Fig. 1 illustrates a part 2 for the power line 1 of electromagnetic oven and the casing of electromagnetic oven, and this part 2 is for installing this power line 1.In the application, power line 1 is for powering for electromagnetic oven, and it generally includes plug, wire and terminal.Herein, except power line 1 and install except the part 2 of this power line, the structure of electromagnetic oven can adopt any existing or leaved for development structure, is not described in detail in this.
As shown in Figure 1, the power line 1 of electromagnetic oven comprises the first paragraph 11 of the inside being positioned at casing and is positioned at the second segment 12 of outside of casing.The first magnet ring 3 is provided with in the inside of casing.The second magnet ring 4 is provided with in the outside of casing.A part for the first paragraph 11 of power line is wound in the first magnet ring 3.Second magnet ring 4 is enclosed within the second segment 12 of power line.
The mode that the first paragraph 11 of power line is wound in the first magnet ring 3 is walk around the sidewall of the first magnet ring after power line passes the central through hole of the first magnet ring 3, and then walks around the sidewall of the first magnet ring, and then through the central through hole of the first magnet ring, so circulates.The first paragraph 11 of power line is through the sidewall walking around the first magnet ring after the central through hole of the first magnet ring 3, and then count 1 circle through the coiling formed that circulates of the central through hole of the first magnet ring, the number of turns that the first paragraph of power line is wound around on the first magnet ring is preferably 1-4 circle.
Preferably, the outer wrap of the part be wound on the first magnet ring 3 of the first paragraph 11 of the first magnet ring 3 and power line has heat-shrinkable T bush (not shown).Arrange heat-shrinkable T bush the part be wound on the first magnet ring of power line to be kept together regularly with the first magnet ring, prevent coiling from surprisingly loosening and bringing the instability of the suppression to Conduction Interference and radiation interference.
The first draw-in groove 21 and the second draw-in groove 22 is also provided with at the casing internal of electromagnetic oven.First draw-in groove 21 is for being fixedly wound with the first magnet ring 3 of power line.Second draw-in groove 22 is for positioning the power line part after magnet ring.By fixing in place by the first magnet ring 3 being wound with power line, thus the distance of the first magnet ring relative to casing can be maintained, ensureing more stably to suppress Conduction Interference and radiation interference.
Preferably, the first magnet ring 3 is 5-25mm to the distance of the madial wall of casing.Inner magnet ring shrinking away from theshell body is nearer, suppresses EMC signal capabilities stronger.
Second magnet ring 4 can with second segment 12 integrated injection molding of power line.Preferably, the second magnet ring is 5-15mm to the distance of the lateral wall of described casing.
Preferably, the volume of the first magnet ring 3 is 2-5 times of the volume of the second magnet ring 4.The volume of the first magnet ring is larger thus primarily of its Conduction Interference suppressing power line to bring and radiation interference.The volume of the second magnet ring is less, thus while the Conduction Interference of assisting to suppress power line to bring and radiation interference, makes the outward appearance of electromagnetic oven more attractive in appearance and can play EMI mark action.
In one modified example, as shown in Figure 2, be wound on the second magnet ring 4 in a part for the second segment 12 of power line 1.Preferably, the second segment 12 of power line 1 is wound in the number of turns on the second magnet ring is 1-3 circle.Under this winding number of turns, suppress the better effects if of Conduction Interference and radiation interference.
In another modified example, as shown in Figure 3, two the first magnet rings 3 can be provided with in the inside of electromagnetic oven, and at outer setting second magnet ring 4 of electromagnetic oven.Wherein two the first magnet rings 3 are spaced from each other.Preferably, two the first magnet rings are all fixed on casing by draw-in groove.
It is pointed out that as required, the first magnet ring 3 of suitable quantity and the second magnet ring 4 at electromagnetic oven outer setting suitable quantity can be set in electromagnetic oven inside.The first paragraph of power line is successively around on each first magnet ring 3, or the first paragraph of power line is wrapped on one or more first magnet ring.Similarly, the second segment of power line can be wrapped on one or more second magnet ring, and remaining second magnet ring is enclosed within the second segment of power line.Above-mentioned various magnet ring set-up modes can combine mutually.
In the application, described power line is two cores or three heart yearns of tape insulation skin.Certainly, as required, power line also can have other structure.
In the application, the first magnet ring and the second magnet ring can be made up of ferrite or neodymium iron boron.The main feature of these materials be resistivity much larger than metallicl magnetic material, this can suppress the generation of eddy current.It should be understood that the first magnet ring and second magnet ring of the application also can adopt any suitable magnetic material known in the art or leaved for development to make.
In electromagnetic oven of the present utility model, by being connected with two magnet rings on the power line, one is placed at electromagnetic oven inner, one is placed on electromagnetic oven outside, two magnet ring arranges and can effectively suppress EMC signal, when reduce as far as possible add master control board cost, greatly can improve electromagnetic oven EMI performance, and structure is simple, safe and reliable.In addition, because magnet ring is different for the rejection ability of each frequency band signals, the signal of band segment can not be effectively suppressed, and by power line solderless wrapped connection on magnet ring, by the reasonable setting of winding turns, effectively can suppress the EMC signal of various frequency range.In addition, outer magnetic ring can have mark action, small volume, ensures handsome in appearance.
Below described preferred embodiment of the present utility model in detail, but it will be appreciated that, after having read above-mentioned instruction content of the present utility model, those skilled in the art can make various changes or modifications the utility model.These equivalent form of values fall within the application's appended claims limited range equally.
Claims (10)
1. an electromagnetic oven, described electromagnetic oven comprises casing and power line, described power line is that described electromagnetic oven is powered and comprises the first paragraph of the inside being positioned at described casing and be positioned at the second segment of outside of described casing, it is characterized in that, described electromagnetic oven also comprises the first magnet ring of the inside being positioned at described casing and is positioned at second magnet ring of outside of described casing, and the volume of the first magnet ring is greater than the volume of the second magnet ring.
2. electromagnetic oven according to claim 1, is characterized in that: the volume of described first magnet ring is 2-5 times of the volume of described second magnet ring.
3. electromagnetic oven according to claim 1, is characterized in that: described first magnet ring is 5-25mm to the distance of the madial wall of described casing, and/or described second magnet ring is 5-15mm to the distance of the lateral wall of described casing.
4. electromagnetic oven according to claim 1, it is characterized in that: a part for the described first paragraph of described power line is wound in described first magnet ring, and a part for the described second segment of described power line is wound in described second magnet ring or described second magnet ring is enclosed within the described second segment of described power line.
5. electromagnetic oven according to claim 4, it is characterized in that: the described first paragraph number of turns be wound on described first magnet ring of described power line is 1-4 circle, and/or when a part for the described second segment of described power line is wound in described second magnet ring, the described second segment number of turns be wound on described second magnet ring of described power line is 1-3 circle.
6. electromagnetic oven according to claim 1, is characterized in that: the inside of described casing is provided with draw-in groove, and described first magnet ring is fixed on described draw-in groove.
7. electromagnetic oven according to claim 4, is characterized in that: the outer wrap of the part be wound on described first magnet ring of the described first paragraph of described first magnet ring and described power line has heat-shrinkable T bush.
8. electromagnetic oven according to claim 1, is characterized in that: described first magnet ring is the spaced composition of multiple magnet ring.
9. the electromagnetic oven according to any one of claim 1-8, is characterized in that: described power line is two cores or three heart yearns of tape insulation skin.
10. the electromagnetic oven according to any one of claim 1-8, is characterized in that: described first magnet ring and described second magnet ring are made up of ferrite or neodymium iron boron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520657556.8U CN205002174U (en) | 2015-08-28 | 2015-08-28 | Electromagnetic oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520657556.8U CN205002174U (en) | 2015-08-28 | 2015-08-28 | Electromagnetic oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205002174U true CN205002174U (en) | 2016-01-27 |
Family
ID=55159059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520657556.8U Active CN205002174U (en) | 2015-08-28 | 2015-08-28 | Electromagnetic oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205002174U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016392A (en) * | 2016-07-11 | 2016-10-12 | 珠海格力电器股份有限公司 | Induction cooker and base thereof |
| CN106016383A (en) * | 2016-06-24 | 2016-10-12 | 珠海格力电器股份有限公司 | Magnetic ring fixing structure and electromagnetic oven |
-
2015
- 2015-08-28 CN CN201520657556.8U patent/CN205002174U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016383A (en) * | 2016-06-24 | 2016-10-12 | 珠海格力电器股份有限公司 | Magnetic ring fixing structure and electromagnetic oven |
| CN106016383B (en) * | 2016-06-24 | 2018-01-23 | 珠海格力电器股份有限公司 | Magnet ring fixing structure and electromagnetic oven |
| CN106016392A (en) * | 2016-07-11 | 2016-10-12 | 珠海格力电器股份有限公司 | Induction cooker and base thereof |
| CN106016392B (en) * | 2016-07-11 | 2019-01-08 | 珠海格力电器股份有限公司 | Electromagnetic oven and its pedestal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |