CN202334278U - Electromagnetic-compatibility small-volume isolation direct current power supply filter - Google Patents
Electromagnetic-compatibility small-volume isolation direct current power supply filter Download PDFInfo
- Publication number
- CN202334278U CN202334278U CN2011204623022U CN201120462302U CN202334278U CN 202334278 U CN202334278 U CN 202334278U CN 2011204623022 U CN2011204623022 U CN 2011204623022U CN 201120462302 U CN201120462302 U CN 201120462302U CN 202334278 U CN202334278 U CN 202334278U
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- output end
- input
- subsequent use
- cathode output
- electric capacity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Abstract
The utility model discloses an electromagnetic-compatibility small-volume isolation direct current power supply filter. The direct current power supply filter comprises an input end and an output end, wherein the input end comprises a first anode input end, a second anode input end and a cathode input end; the output end comprises a first anode output end, a second anode output end and a cathode output end, and a first inductor is connected between the first anode input end and the first anode output end; a third inductor is connected between the second anode input end and the second anode output end, and a second inductor is connected between the cathode input end and the cathode output end; and a first capacitor, a third capacitor and a fifth capacitor are connected in parallel between the first anode output end and the cathode output end, and a second capacitor, a fourth capacitor and a sixth capacitor are connected in parallel between the second anode output end and the cathode output end. The direct current power supply filter provided by the utility model has the advantages of being strong in compatibility, good in isolation, small in volume, light in mass, and stable in structure.
Description
Technical field
The utility model relates to a kind of DC wave filter, relates in particular to that a kind of isolation is good, small and light, the firm electromagnetic compatibility small size isolated DC power-supply filter of structure.
Background technology
Power-supply filter; Have another name called " power supply electromagnetic interface filter "; Or " EMI power-supply filter ", be a kind of passive bidirectional network, be a kind of electric equipment that the frequency or the frequency beyond this frequency of CF in the power supply are carried out effective filtering; Its end is to connect power supply, and the other end is to connect load.Existing DC wave filter is because the impedance matching of its inner filter network is bad, and it is not enough to cause inserting loss, and Electro Magnetic Compatibility is not high, isolation is good inadequately, and volume is bigger than normal; In addition, the existing power supply filter generally is connected cover plate through screw with filter, perhaps adopts to be welded to connect, and these two kinds of syndetons all are single syndetons, and its structure is firm inadequately, possibly in the environment that shakes by force, cause damaging.
Summary of the invention
A kind of isolation is good with regard to being to provide in order to address the above problem for the purpose of the utility model, small and light, the firm electromagnetic compatibility small size isolated DC power-supply filter of structure.
The utility model is realized above-mentioned purpose through following technical scheme:
The utility model comprises input and output; Said input comprises first electrode input end, second electrode input end and negative input; Said output comprises first cathode output end, second cathode output end and cathode output end; Be connected with first inductance between said first electrode input end and said first cathode output end; Be connected with the 3rd inductance between said second electrode input end and said second cathode output end, be connected with second inductance between said negative input and the said cathode output end; Be connected in parallel to first electric capacity, the 3rd electric capacity and the 5th electric capacity between said first cathode output end and the said cathode output end, be connected in parallel to second electric capacity, the 4th electric capacity and the 6th electric capacity between said second cathode output end and the said cathode output end.
Further, said first cathode output end is connected back ground connection with the 7th electric capacity, and said cathode output end is connected back ground connection with the 8th electric capacity, and said second cathode output end is connected back ground connection with the 9th electric capacity.
Further; Said input also comprises the first subsequent use input and the second subsequent use input; Said output also comprises the first subsequent use output and the second subsequent use output, and the said first subsequent use input is connected with the said first subsequent use output, and the said second subsequent use input is connected with the said second subsequent use output; The said first subsequent use output connects ground connection behind the tenth electric capacity, and the said second subsequent use output connects ground connection behind the 11 electric capacity.
As preferably, adopt parallel soldering and sealing to be connected between the upper cover plate of said filter and the base with bolt is dual.
The beneficial effect of the utility model is:
1. the utility model is compatible by force, isolation is good, and small and light.
2. adopt that parallel soldering and sealing and bolt are dual to be connected, make the utility model structure more firm, realized sealing fully, and can be in the environment that shakes by force operate as normal.
Description of drawings
Fig. 1 is the front view of the utility model electromagnetic compatibility small size isolated DC power-supply filter;
Fig. 2 is the vertical view of the utility model electromagnetic compatibility small size isolated DC power-supply filter;
Fig. 3 is the internal circuit configuration sketch map of the utility model electromagnetic compatibility small size isolated DC power-supply filter.
Wherein: 1-input seat, 2-upper cover plate, 3-base, 4-output seat, 5-output lead.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
As shown in Figure 3; The input of the utility model comprises the first electrode input end A, the second electrode input end D and negative input B; Output comprises the first cathode output end A1, the second cathode output end D1 and cathode output end B1; Be connected with between first inductance L, 1, the second electrode input end D and the second cathode output end D1 between the first electrode input end A and the first cathode output end A1 and be connected with the 3rd inductance L 3, be connected with second inductance L 2 between negative input B and the cathode output end B1; Be connected in parallel between the first cathode output end A1 and the cathode output end B1 and be connected in parallel to second capacitor C 2, the 4th capacitor C 4 and the 6th capacitor C 6 between first capacitor C 1, the 3rd capacitor C 3 and the 5th capacitor C 5, the second cathode output end D1 and the cathode output end B1.
As shown in Figure 3, the first cathode output end A1 is connected back ground connection with the 7th capacitor C 7, and cathode output end B1 is connected back ground connection with the 8th capacitor C 8, and the second cathode output end D1 is connected back ground connection with the 9th capacitor C 9.
As shown in Figure 3; Input also comprises the first subsequent use input E and the second subsequent use input F; Output also comprises the first subsequent use output E1 and the second subsequent use output F1, and the first subsequent use input E is connected with the first subsequent use output E1, and the second subsequent use input F is connected with the second subsequent use output F1; The first subsequent use output E1 connects the tenth capacitor C 10 back ground connection, and the second subsequent use output F1 connects the 11 capacitor C 11 back ground connection.
As depicted in figs. 1 and 2, adopt parallel soldering and sealing to be connected between the upper cover plate 2 of filter and the base 3 with bolt is dual.Input seat 1 is arranged at the top of upper cover plate 2, and output seat 4 is arranged at the below of base 3, and output lead 5 is drawn from the below of output seat 4.
Claims (4)
1. electromagnetic compatibility small size isolated DC power-supply filter; Comprise input and output; It is characterized in that: said input comprises first electrode input end, second electrode input end and negative input; Said output comprises first cathode output end, second cathode output end and cathode output end; Be connected with first inductance between said first electrode input end and said first cathode output end, be connected with the 3rd inductance between said second electrode input end and said second cathode output end, be connected with second inductance between said negative input and the said cathode output end; Be connected in parallel to first electric capacity, the 3rd electric capacity and the 5th electric capacity between said first cathode output end and the said cathode output end, be connected in parallel to second electric capacity, the 4th electric capacity and the 6th electric capacity between said second cathode output end and the said cathode output end.
2. electromagnetic compatibility small size isolated DC power-supply filter according to claim 1; It is characterized in that: said first cathode output end is connected back ground connection with the 7th electric capacity; Said cathode output end is connected back ground connection with the 8th electric capacity, said second cathode output end is connected back ground connection with the 9th electric capacity.
3. electromagnetic compatibility small size isolated DC power-supply filter according to claim 1; It is characterized in that: said input also comprises the first subsequent use input and the second subsequent use input; Said output also comprises the first subsequent use output and the second subsequent use output; The said first subsequent use input is connected with the said first subsequent use output; The said second subsequent use input is connected with the said second subsequent use output, and the said first subsequent use output connects ground connection behind the tenth electric capacity, and the said second subsequent use output connects ground connection behind the 11 electric capacity.
4. electromagnetic compatibility small size isolated DC power-supply filter according to claim 1 is characterized in that: adopt parallel soldering and sealing to be connected with bolt is dual between the upper cover plate of said filter and the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204623022U CN202334278U (en) | 2011-11-18 | 2011-11-18 | Electromagnetic-compatibility small-volume isolation direct current power supply filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204623022U CN202334278U (en) | 2011-11-18 | 2011-11-18 | Electromagnetic-compatibility small-volume isolation direct current power supply filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202334278U true CN202334278U (en) | 2012-07-11 |
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ID=46446243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204623022U Expired - Fee Related CN202334278U (en) | 2011-11-18 | 2011-11-18 | Electromagnetic-compatibility small-volume isolation direct current power supply filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202334278U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107528466A (en) * | 2016-06-20 | 2017-12-29 | 艾默生网络能源有限公司 | A kind of EMI filter circuit |
-
2011
- 2011-11-18 CN CN2011204623022U patent/CN202334278U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107528466A (en) * | 2016-06-20 | 2017-12-29 | 艾默生网络能源有限公司 | A kind of EMI filter circuit |
| CN107528466B (en) * | 2016-06-20 | 2019-08-23 | 维谛技术有限公司 | A kind of EMI filter circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20181118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |