CN202435780U - EMC (electro-magnetic compatibility) anti-electromagnetic interference device of humidifier - Google Patents
EMC (electro-magnetic compatibility) anti-electromagnetic interference device of humidifier Download PDFInfo
- Publication number
- CN202435780U CN202435780U CN2011205503102U CN201120550310U CN202435780U CN 202435780 U CN202435780 U CN 202435780U CN 2011205503102 U CN2011205503102 U CN 2011205503102U CN 201120550310 U CN201120550310 U CN 201120550310U CN 202435780 U CN202435780 U CN 202435780U
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- electromagnetic interference
- inductance
- humidifier
- emc
- lead
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Abstract
The utility model discloses an EMC (electro-magnetic compatibility) anti-electromagnetic interference device of a humidifier. The EMC anti-electromagnetic interference device comprises a metal shield cover and a lead, wherein the metal shield cover is arranged at the bottom of an atomizing sheet and is used for encircling the atomizing sheet to shield the external anti-electromagnetic interference, and the lead is connected with the metal shield cover; the other end of the lead is at least connected with an inductor, the other end of the inductor is connected with a humidifier control circuit. The utility model aims to provide the EMC anti-electromagnetic interference device of the humidifier, which is simple in structure, low in cost and easy to realize.
Description
[technical field]
The utility model relates to a kind of EMC electromagnetic interference resistant device of humidifier.
[background technology]
At present, domestic existing humidifier atomizing piece is bigger to external radiation when work, and other electric equipments are caused interference, and the consumer is worked the mischief, and does not reach the requirement that export abroad EMC detects, and for this reason, the inventor designs the utility model.
[utility model content]
The utility model has overcome the deficiency of above-mentioned technology, provides a kind of humidifier atomizing piece of eliminating externally to disturb, and is simple in structure, cheap, and the humidifier of realizing is easily crossed the EMC electromagnetic interference resistant device.
For realizing above-mentioned purpose, the utility model has adopted following technical proposal:
A kind of EMC electromagnetic interference resistant device of humidifier; Comprise the metallic shield 1 that is used to surround atomizing piece 5 its external electromagnetic interference of shielding that is arranged on atomizing piece 5 bottoms; The lead 6 that is connected with metallic shield 1; Said lead 6 other ends are connected with an inductance 2 at least, and said inductance 2 other ends are connected with humidifier control circuit 7.
Described inductance 2 is a common mode inductance, and 2 liang of inputs of inductance are connected with power supply 3 both positive and negative polarities respectively, inductance 2 output termination humidifier control circuits 7.
Described lead 6 is connected on inductance 2 electrode input ends.
Described lead 6 is connected on inductance 2 negative inputs.
The beneficial effect of the utility model is: 1, simple in structure, cheap, realize easily.2, because metallic shield absorbs and shielded the electromagenetic wave radiation that atomizing piece externally sends, reduce the humidifier electromagnetic interference of environment to external world effectively, more easily through EMC test authentication.3, since metallic shield absorb Electromagnetic Interference that atomizing piece sends and through with just insert in the humidifier control circuit after the common mode inductance input is connected, avoided interference to self circuit.
[description of drawings]
Fig. 1 is the structure chart of the utility model.
Fig. 2 is the circuit connection diagram of the utility model.
[embodiment]
Referring to shown in Figure 1; A kind of EMC electromagnetic interference resistant device of humidifier; Comprise the metallic shield 1 that is used to surround atomizing piece 5 its external electromagnetic interference of shielding that is arranged on atomizing piece 5 bottoms in the humidifier; The lead 6 that is connected with metallic shield 1, said lead 6 other ends are connected with an inductance 2 at least, and said inductance 2 other ends are connected with humidifier control circuit 7; Described metallic shield 1 current potential equates with the link current potential of inductance 2; Metallic shield 1 forms the current potential body; The electromagnetic wave that externally sends during 5 work of 1 pair of atomizing piece of said metallic shield has very big absorption and shielding action, thereby realizes the standard through the anti-Electromagnetic Interference Test authentication of EMC.
Described inductance 2 is a common mode inductance; 2 liang of inputs of inductance are connected with power supply 3 both positive and negative polarities respectively; Inductance 2 output termination humidifier control circuits 7; Metallic shield 1 absorb Electromagnetic Interference that atomizing piece 5 sends and through with just insert in the humidifier control circuit 7 after the common mode inductance input is connected, avoided interference to self circuit.
Described lead 6 is connected on inductance 2 electrode input ends.
Described lead 6 is connected on inductance 2 negative inputs.
The utility model draws when said lead 6 is connected on common mode inductance 2 negative inputs according to the test effect of reality, because common mode inductance 2 negative poles are connected with ground usually, its current potential is lower, and effect is general; And when said lead 6 is connected on common mode inductance 2 electrode input ends, best to electro-magnetic wave absorption and screening ability that atomizing piece 5 produces, do not influence the operate as normal of inner other circuit yet, best through the effect of the anti-Electromagnetic Interference Test of EMC.
Claims (4)
1. the EMC electromagnetic interference resistant device of a humidifier; It is characterized in that comprising be arranged on atomizing piece (5) bottom be used to surround the metallic shield (1) that atomizing piece (5) shields its external electromagnetic interference; The lead (6) that is connected with metallic shield (1); Said lead (6) other end is connected with an inductance (2) at least, and said inductance (2) other end is connected with humidifier control circuit (7).
2. the EMC electromagnetic interference resistant device of a kind of humidifier according to claim 1 is characterized in that described inductance (2) is a common mode inductance, and inductance (2) two inputs are connected with power supply (3) both positive and negative polarity respectively, inductance (2) output termination humidifier control circuit (7).
3. the EMC electromagnetic interference resistant device of a kind of humidifier according to claim 1 and 2 is characterized in that described lead (6) is connected on inductance (2) electrode input end.
4. the EMC electromagnetic interference resistant device of a kind of humidifier according to claim 1 and 2 is characterized in that described lead (6) is connected on inductance (2) negative input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205503102U CN202435780U (en) | 2011-12-23 | 2011-12-23 | EMC (electro-magnetic compatibility) anti-electromagnetic interference device of humidifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205503102U CN202435780U (en) | 2011-12-23 | 2011-12-23 | EMC (electro-magnetic compatibility) anti-electromagnetic interference device of humidifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202435780U true CN202435780U (en) | 2012-09-12 |
Family
ID=46785179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205503102U Expired - Fee Related CN202435780U (en) | 2011-12-23 | 2011-12-23 | EMC (electro-magnetic compatibility) anti-electromagnetic interference device of humidifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202435780U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222261A (en) * | 2015-10-15 | 2016-01-06 | 珠海格力电器股份有限公司 | Atomizing piece structure and humidifier |
-
2011
- 2011-12-23 CN CN2011205503102U patent/CN202435780U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222261A (en) * | 2015-10-15 | 2016-01-06 | 珠海格力电器股份有限公司 | Atomizing piece structure and humidifier |
| CN105222261B (en) * | 2015-10-15 | 2017-12-05 | 珠海格力电器股份有限公司 | Atomizing piece structure and humidifier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120912 Termination date: 20131223 |