CN204517653U - Difference common mode compound inductance filter band - Google Patents
Difference common mode compound inductance filter band Download PDFInfo
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- CN204517653U CN204517653U CN201420753458.XU CN201420753458U CN204517653U CN 204517653 U CN204517653 U CN 204517653U CN 201420753458 U CN201420753458 U CN 201420753458U CN 204517653 U CN204517653 U CN 204517653U
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Abstract
The utility model relates to household electrical appliance technical field, refer to a kind of means for anti-jamming being applied to microwave oven and household electrical appliance especially, specifically refer to poor common mode compound inductance filter band, connect to comprise at appliances power source input and suppress electric capacity C1, piezo-resistance ZNR, compound inductance L1, smoothing capacity C4, common mode inhibition electric capacity C2, C3, the absorption circuit that discharge resistance R1 forms, disturbance current is absorbed by absorption circuit, and is reached the effect suppressing interference by the reasonable arrangement of said elements and parameter coordination.The beneficial effects of the utility model are, coordinate the object reaching and suppress interference, eliminate lightning induction electric current with rational component placement and technological parameter.
Description
Technical field
The utility model relates to household electrical appliance technical field, refers to a kind of means for anti-jamming being applied to microwave oven and household electrical appliance especially, specifically refers to poor common mode compound inductance filter band.
Background technology
Current high-grade household electrical appliance, particularly microwave oven does booster power by electronic switch variable frequency power supply, a large amount of electromagnetic interference is produced when microwave oven works, have a strong impact on the normal use of other electrical equipment, and easy filter band is installed now can not effective filtering interference signals, the filter band only for the improvement of electronic switch variable frequency power supply could effective filtering interfering; What current filter band adopted is coordinate capacitor to do interference worry with common mode inductance and differential mode inductance respectively to remove, and cost is higher, and volume, weight are bigger than normal.The applicant is because the disappearance of above-mentioned prior art and inconvenience, and the spirit of adhere to research and innovation, keeping on improving, utilizes its professional eye and professional knowledge, work out a kind of difference common mode compound inductance filter band.
Utility model content
The purpose of this utility model is, overcoming existing filter band can not the shortcoming of effectively filtering interference signals and lightning induction impulse current, reduces costs simultaneously; By common mode inductance and differential mode inductance are made of one formula structure, form poor, common mode compound inductance, reach the object reducing costs, reduce volume, reduce weight, and a poor common mode compound inductance filter band of exploitation.
The technical solution of the utility model is, connects to comprise suppress electric capacity C1, piezo-resistance ZNR, compound inductance L1 at appliances power source input, smoothing capacity C4, common mode inhibition electric capacity C2, C3, the absorption circuit that discharge resistance R1 forms, disturbance current is absorbed by absorption circuit, L end in power input connects one end of fuse FUSE, the other end of FUSE connects piezo-resistance ZNR and suppresses one end of electric capacity C1, the N end of another termination power input of piezo-resistance ZNR and suppression electric capacity C1, the two ends of electric capacity C1 are suppressed also to connect two inputs of compound inductance L1 respectively, common mode inhibition electric capacity C2, C3 is parallel between two outputs of compound inductance L1 after connecting, smoothing capacity C4 and discharge resistance R1 is also parallel between two outputs of compound inductance L1 respectively, common mode inhibition electric capacity C2, C3 is connected in series the protective earthing a little connecing power supply.
Described suppression electric capacity C1 is 0.1 μ F-5 μ F; Common mode inhibition electric capacity C2, C3 are 0.001 μ F-0.1 μ F; Smoothing capacity C4 is 0.1 μ F-5 μ F.
Described compound inductance L1 is 0.5mH-60mH.
The beneficial effects of the utility model are, coordinate the object reaching and suppress interference, eliminate lightning induction electric current with rational component placement and technological parameter.
Accompanying drawing explanation
Accompanying drawing 1 is circuit structure diagram.
Embodiment
Below in conjunction with the accompanying drawing 1 in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only a part of embodiment of the present utility model, 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.
Connect to comprise at appliances power source input and suppress electric capacity C1, piezo-resistance ZNR, compound inductance L1, smoothing capacity C4, common mode inhibition electric capacity C2, C3, the absorption circuit 1 that discharge resistance R1 forms, disturbance current is absorbed by absorption circuit 1, and is reached the effect suppressing interference by the reasonable arrangement of said elements and parameter coordination.
Described suppression electric capacity C1 is 0.1 μ F-5 μ F; Common mode inhibition electric capacity C2, C3 are 0.001 μ F-0.1 μ F; Smoothing capacity C4 is 0.1 μ F-5 μ F.
Described compound inductance L1 is 0.5mH-60mH.
In FIG; power supply is from L(IN) and N(IN) input; connect fuse FUSE; piezo-resistance ZNR and C1 in parallel; connect compound inductance L1; connect common mode capacitance C2, C3, the tie point of common mode capacitance C2, C3 connects the protective earthing of power supply, output L(OUT) and N(OUT) and meet C4 and R1.C4 with R1 is connected the output of compound inductance.。
Claims (3)
1. differ from common mode compound inductance filter band, it is characterized in that,
Connect to comprise at appliances power source input and suppress electric capacity C1, piezo-resistance ZNR, compound inductance L1, smoothing capacity C4, common mode inhibition electric capacity C2, C3, the absorption circuit (1) that discharge resistance R1 forms, disturbance current is absorbed by absorption circuit (1);
L end in power input connects one end of fuse FUSE, the other end of FUSE connects piezo-resistance ZNR and suppresses one end of electric capacity C1, the N end of another termination power input of piezo-resistance ZNR and suppression electric capacity C1, the two ends of electric capacity C1 are suppressed also to connect two inputs of compound inductance L1 respectively, common mode inhibition electric capacity C2, C3 is parallel between two outputs of compound inductance L1 after connecting, smoothing capacity C4 and discharge resistance R1 is also parallel between two outputs of compound inductance L1 respectively, common mode inhibition electric capacity C2, C3 is connected in series the protective earthing a little connecing power supply.
2. poor common mode compound inductance filter band according to claim 1, is characterized in that,
Described suppression electric capacity C1 is 0.1 μ F-5 μ F; Common mode inhibition electric capacity C2, C3 are 0.001 μ F-0.1 μ F; Smoothing capacity C4 is 0.1 μ F-5 μ F.
3. poor common mode compound inductance filter band according to claim 1, it is characterized in that, described compound inductance L1 is 0.5mH-60mH.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420753458.XU CN204517653U (en) | 2014-12-05 | 2014-12-05 | Difference common mode compound inductance filter band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420753458.XU CN204517653U (en) | 2014-12-05 | 2014-12-05 | Difference common mode compound inductance filter band |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204517653U true CN204517653U (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420753458.XU Active CN204517653U (en) | 2014-12-05 | 2014-12-05 | Difference common mode compound inductance filter band |
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| Country | Link |
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| CN (1) | CN204517653U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107659165A (en) * | 2016-07-26 | 2018-02-02 | 法雷奥电机控制系统公司 | Terminal board, electric pressure converter and the electrical equipment for including this electric pressure converter |
| CN113691121A (en) * | 2021-08-05 | 2021-11-23 | 广东美的厨房电器制造有限公司 | Filter plate and cooking device |
-
2014
- 2014-12-05 CN CN201420753458.XU patent/CN204517653U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107659165A (en) * | 2016-07-26 | 2018-02-02 | 法雷奥电机控制系统公司 | Terminal board, electric pressure converter and the electrical equipment for including this electric pressure converter |
| CN113691121A (en) * | 2021-08-05 | 2021-11-23 | 广东美的厨房电器制造有限公司 | Filter plate and cooking device |
| CN113691121B (en) * | 2021-08-05 | 2024-05-14 | 广东威特真空电子制造有限公司 | Filter plate and cooking device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Beijiao town Shunde District Guangdong city Foshan province 528311 neighborhood along the river road eleven No. 25 Shunde Sanle Innovation Industry Park Patentee after: Guangdong Shang Shang Electronic Technology Co., Ltd. Address before: Beijiao town Shunde District Guangdong city Foshan province 528311 neighborhood along the River Road No. 25 in two, A building third, four floor Patentee before: Foshan Shunde Shangyan Electronic Technology Co., Ltd. |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 528311 No. 1, DUYE South Road, duning Industrial Zone, Bijiang community, Beijiao Town, Shunde District, Foshan City, Guangdong Province Patentee after: Guangdong Shangyan Electronic Technology Co.,Ltd. Address before: 528311 Shunde Innovation Industrial Park No. 25 Sanle East Road, Shunjiang Residential Committee, Beijiao Town, Shunde District, Foshan City, Guangdong Province Patentee before: GUANGDONG SONG RESEARCH ELECTRONIC TECHNOLOGY CO.,LTD. |