CN202334275U - Reinforced mains filter with electromagnetic compatibility - Google Patents
Reinforced mains filter with electromagnetic compatibility Download PDFInfo
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- CN202334275U CN202334275U CN2011204580633U CN201120458063U CN202334275U CN 202334275 U CN202334275 U CN 202334275U CN 2011204580633 U CN2011204580633 U CN 2011204580633U CN 201120458063 U CN201120458063 U CN 201120458063U CN 202334275 U CN202334275 U CN 202334275U
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Abstract
The utility model discloses a reinforced mains filter with electromagnetic compatibility. The reinforced mains filter comprises an input terminal and an output terminal, wherein a first positive main input terminal and a first positive auxiliary input terminal of the input terminal are mutually connected; a second positive main input terminal and a second positive auxiliary input terminal of the input terminal are mutually connected; a negative main input terminal and a negative auxiliary input terminal of the input terminal are mutually connected; a first positive main output terminal and a first positive auxiliary output terminal of the output terminal are mutually connected; a second positive main output terminal and a second positive auxiliary output terminal of the output terminal are mutually connected; a negative main output terminal and a negative auxiliary output terminal of the output terminal are mutually connected; the first positive main input terminal is connected with the first positive main output terminal after being connected in series with a second fuse; the second positive main input terminal is connected with the second positive main output terminal after being connected in series with a fourth fuse; and the negative main input terminal is connected with the negative main output terminal. The reinforced mains filter provided by the utility model has the advantages of strong compatibility, good isolation performance and stable structure, and the filtering performance is protected against influence from external moisture.
Description
Technical field
The utility model relates to a kind of power-supply filter, relates in particular to the electromagnetic compatibility that a kind of compatibility is strong, structure is firm and reinforces power-supply filter.
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.The existing power supply 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; In addition, the existing power supply filter generally is connected cover plate through screw with filter, and this connection makes its structure built on the sand, can not realize sealing fully, makes moist easily, causes that the various aspects of performance of filter descends.
Summary of the invention
The purpose of the utility model provides the electromagnetic compatibility that a kind of compatibility is strong, structure is firm to reinforce power-supply filter with regard to being in order to address the above problem.
The utility model is realized above-mentioned purpose through following technical scheme:
The utility model comprises input and output; Said input comprises the first anodal primary input end, the first anodal auxilliary input, the second anodal primary input end, the second anodal auxilliary input, negative pole primary input end and the auxilliary input of negative pole; Said output comprises the first anodal main output, the first anodal auxilliary output, the second anodal main output, the second anodal auxilliary output, negative pole master output and the auxilliary output of negative pole; The said first anodal primary input end is connected with the said first anodal auxilliary input; The said second anodal primary input end is connected with the said second anodal auxilliary input; Said negative pole primary input end is connected with the auxilliary input of said negative pole, and the said first anodal main output is connected with the said first anodal auxilliary output, and the said second anodal main output is connected with the said second anodal auxilliary output; Said negative pole master output is connected with the auxilliary output of said negative pole; The said first anodal primary input end is connected and is connected with the said first anodal main output behind second protective tube, and the said second anodal primary input end is connected and is connected with the said second anodal main output behind the 4th protective tube, and said negative pole primary input end is connected with said negative pole master output.
Further, the said first anodal main output ground connection behind the 3rd electric capacity that is connected in series, the said second anodal main output ground connection behind the 5th electric capacity that is connected in series, the said negative pole master output ground connection behind the 4th electric capacity that is connected in series.
As preferably, the said first anodal auxilliary input is connected in series successively and is connected with the said second anodal auxilliary input behind first resistance, first protective tube, first electric capacity, second electric capacity, the 3rd protective tube and second resistance; Connecting line between said first electric capacity and said second electric capacity also is connected with said negative pole primary input end.
Further, said input also comprises the first subsequent use input, the second subsequent use input and the 3rd subsequent use input, and said output also comprises the first subsequent use output, the second subsequent use output and the 3rd 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; The said the 3rd subsequent use input is connected with the said the 3rd subsequent use output; The said first subsequent use output is connected back ground connection with the 6th electric capacity, the said second subsequent use output is connected back ground connection with the 7th electric capacity, and the said the 3rd subsequent use output is connected back ground connection with the 8th electric capacity.
As optimal selection, be that parallel soldering and sealing connects between the upper cover plate of said filter and the base.
The beneficial effect of the utility model is:
The utility model is compatible by force, isolation is good, structure is firm, and can avoid extraneous moisture to influence the filtering performance of the utility model.
Description of drawings
Fig. 1 is the front view that the utility model electromagnetic compatibility is reinforced power-supply filter;
Fig. 2 is the left view that the utility model electromagnetic compatibility is reinforced power-supply filter;
Fig. 3 is the vertical view that the utility model electromagnetic compatibility is reinforced power-supply filter;
Fig. 4 is the internal circuit configuration sketch map that the utility model electromagnetic compatibility is reinforced power-supply filter.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
As shown in Figure 4; The input of the utility model comprises the first anodal primary input end B, the first anodal auxilliary input A, the second anodal primary input end H, the second anodal auxilliary input G, negative pole primary input end E and the auxilliary input D of negative pole; Output comprises the first anodal main output B1, first anodal auxilliary output terminals A 1, the second anodal main output H1, the second anodal auxilliary output G1, negative pole master output E1 and the auxilliary output D1 of negative pole; The first anodal primary input end B is connected with the first anodal auxilliary input A; The second anodal primary input end H is connected with the second anodal auxilliary input G; Negative pole primary input end E is connected with the auxilliary input D of negative pole, and the first anodal main output B1 is connected with the first anodal auxilliary output terminals A 1, and the second anodal main output H1 is connected with the second anodal auxilliary output G1; Negative pole master output E1 is connected with the auxilliary output D1 of negative pole; The first anodal primary input end B connects and is connected with the first anodal main output B1 behind the second protective tube F2, and the second anodal primary input end H connects and is connected with the second anodal main output H1 behind the 4th protective tube F4, and negative pole primary input end E is connected with negative pole master output E1.
As shown in Figure 4, the first anodal main output B1 the 3rd capacitor C 3 back ground connection that are connected in series, the second anodal main output H1 the 5th capacitor C 5 back ground connection that are connected in series, negative pole master output E1 the 4th capacitor C 4 back ground connection that are connected in series.
As shown in Figure 4, be connected in series successively first resistance R 1, the first protective tube F1, first capacitor C 1, second capacitor C 2, the 3rd protective tube F3 of the first anodal auxilliary input A is connected with the second anodal input G of assisting with second resistance R, 2 backs; Connecting line between first capacitor C 1 and second capacitor C 2 also is connected with negative pole primary input end E.
As shown in Figure 4, input also comprises the first subsequent use input J, the second subsequent use input K and the 3rd subsequent use input L, and output also comprises the first subsequent use output J1, the second subsequent use output K1 and the 3rd subsequent use output L1; The first subsequent use input J is connected with the first subsequent use output J1; The second subsequent use input K is connected with the second subsequent use output K1; The 3rd subsequent use input L is connected with the 3rd subsequent use output L1; The first subsequent use output J1 is connected back ground connection with the 6th capacitor C 6, the second subsequent use output K1 is connected back ground connection with the 7th capacitor C 7, and the 3rd subsequent use output L1 is connected back ground connection with the 8th capacitor C 8.
Like Fig. 1, Fig. 2 and shown in Figure 3, be that parallel soldering and sealing connects between the upper cover plate 2 of filter and the base 3.Input seat 1 is positioned at the top of upper cover plate 2, and output seat 4 is positioned at the below of base 3, and output lead 5 is drawn from output seat 4.
Claims (5)
1. an electromagnetic compatibility is reinforced power-supply filter; Comprise input and output; It is characterized in that: said input comprises the first anodal primary input end, the first anodal auxilliary input, the second anodal primary input end, the second anodal auxilliary input, negative pole primary input end and the auxilliary input of negative pole; Said output comprises the first anodal main output, the first anodal auxilliary output, the second anodal main output, the second anodal auxilliary output, negative pole master output and the auxilliary output of negative pole; The said first anodal primary input end is connected with the said first anodal auxilliary input; The said second anodal primary input end is connected with the said second anodal auxilliary input; Said negative pole primary input end is connected with the auxilliary input of said negative pole, and the said first anodal main output is connected with the said first anodal auxilliary output, and the said second anodal main output is connected with the said second anodal auxilliary output; Said negative pole master output is connected with the auxilliary output of said negative pole; The said first anodal primary input end is connected and is connected with the said first anodal main output behind second protective tube, and the said second anodal primary input end is connected and is connected with the said second anodal main output behind the 4th protective tube, and said negative pole primary input end is connected with said negative pole master output.
2. electromagnetic compatibility according to claim 1 is reinforced power-supply filter; It is characterized in that: the said first anodal main output ground connection behind the 3rd electric capacity that is connected in series; The said second anodal main output ground connection behind the 5th electric capacity that is connected in series, the said negative pole master output ground connection behind the 4th electric capacity that is connected in series.
3. electromagnetic compatibility according to claim 1 is reinforced power-supply filter, it is characterized in that: the said first anodal auxilliary input is connected in series successively and is connected with the said second anodal auxilliary input behind first resistance, first protective tube, first electric capacity, second electric capacity, the 3rd protective tube and second resistance; Connecting line between said first electric capacity and said second electric capacity also is connected with said negative pole primary input end.
4. electromagnetic compatibility according to claim 1 is reinforced power-supply filter; It is characterized in that: said input also comprises the first subsequent use input, the second subsequent use input and the 3rd subsequent use input, and said output also comprises the first subsequent use output, the second subsequent use output and the 3rd 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; The said the 3rd subsequent use input is connected with the said the 3rd subsequent use output; The said first subsequent use output is connected back ground connection with the 6th electric capacity, the said second subsequent use output is connected back ground connection with the 7th electric capacity, and the said the 3rd subsequent use output is connected back ground connection with the 8th electric capacity.
5. electromagnetic compatibility according to claim 1 is reinforced power-supply filter, it is characterized in that: connect for parallel soldering and sealing between the upper cover plate of said filter and the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204580633U CN202334275U (en) | 2011-11-17 | 2011-11-17 | Reinforced mains filter with electromagnetic compatibility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204580633U CN202334275U (en) | 2011-11-17 | 2011-11-17 | Reinforced mains filter with electromagnetic compatibility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202334275U true CN202334275U (en) | 2012-07-11 |
Family
ID=46446240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204580633U Expired - Fee Related CN202334275U (en) | 2011-11-17 | 2011-11-17 | Reinforced mains filter with electromagnetic compatibility |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202334275U (en) |
-
2011
- 2011-11-17 CN CN2011204580633U patent/CN202334275U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20181117 |