CN201536321U - Filter device - Google Patents
Filter device Download PDFInfo
- Publication number
- CN201536321U CN201536321U CN2009202663418U CN200920266341U CN201536321U CN 201536321 U CN201536321 U CN 201536321U CN 2009202663418 U CN2009202663418 U CN 2009202663418U CN 200920266341 U CN200920266341 U CN 200920266341U CN 201536321 U CN201536321 U CN 201536321U
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- China
- Prior art keywords
- filter
- flanging
- filter circuit
- circuit plate
- low pass
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Abstract
The utility model provides a filter device which comprises a low pass filter and a filter circuit board, wherein the filter device further comprises more than one first connecting plates and more than one second connecting plates, wherein each first connecting plate comprises a first folding edge and a second folding edge, each second connecting plate comprises a third folding edge and a fourth folding edge, wherein the first folding edge is fixedly arranged on a first input end of the low pass filter, the second folding edge is fixedly arranged on the filter circuit board and is electrically connected with a first input end of the filter circuit board, the third folding edge is fixedly arranged on a second input end of the low pass filter, and the fourth folding edge is fixedly arranged on the filter circuit board and is electrically connected with the second input end of the filter circuit board. The low pass filter and the filter circuit board are connected in parallel through the first connecting plates and the second connecting plates, thereby lowering the assembly difficulty between the low pass filter and the filter circuit board, and improving the filter performance of the filter device.
Description
Technical field
The utility model relates to electronic equipment, relates in particular to a kind of filter.
Background technology
Adopt the current transformer power supply product of power electronic technology development to be widely used in every field such as electric power, military project, industry, commerce, agricultural at present.Because its vast market space and social demand, current transformer is also developing towards little, the capacious direction of volume rapidly.At the output of current transformer, can adopt low pass filter to carry out filtering usually, the main effect of low pass filter is the interference of the high-frequency impulse of the extraneous electrical network of filtering to current transformer, reduces current transformer electromagnetic interference to external world itself simultaneously.
In order further to improve the quality of output current, clean the electromagnetic interference filtering of high frequency, can adopt low pass filter to be used in combination usually with filter circuit plate.Filter circuit plate mainly is made up of a plurality of absorption electric capacity, by better absorbing high-frequency electromagnetic interference in parallel with low pass filter.In the prior art, adopt cable that low pass filter and filter circuit plate are connected in parallel usually, realize low pass filter and together filtering High-frequency Interference of filter circuit plate.
As from the foregoing, the current transformer inside of, compact conformation little at volume, cable will be subjected to the restriction of current transformer inner space, and the wiring of cable is difficulty very, thereby is difficult to realize by cable low pass filter and filter circuit plate being connected in parallel; And low pass filter is with after filter circuit plate is connected by cable, and cable can produce very big stray inductance and stray capacitance, makes the filter effect of low pass filter and filter circuit plate not ideal enough.Therefore, prior art adopts cable to connect low pass filter and filter circuit plate, and its assembly difficulty is big and filtering performance is poor.
The utility model content
Technical problem to be solved in the utility model is: a kind of filter is provided, solve low pass filter and filter circuit plate assembly difficulty in the prior art greatly, the defective of filter effect difference, realization effectively reduces assembly difficulty by filter, improves the filtering performance of filter.
The technical scheme that the utility model provides is that a kind of filter comprises low pass filter and filter circuit plate, wherein, also comprises:
First connecting plate and second connecting plate; Described first connecting plate comprises first flanging and second flanging, and described second connecting plate comprises the 3rd flanging and Fourth Fold;
Wherein, described first flanging is installed in the first input end of described low pass filter; Described second flanging is installed on the described filter circuit plate, and is electrically connected with the first input end of described filter circuit plate;
Described the 3rd flanging is installed in second input of described low pass filter; Described Fourth Fold is installed on the described filter circuit plate, and is electrically connected with second input of described filter circuit plate.
The utility model embodiment filter, by first connecting plate and second connecting plate low pass filter and filter circuit plate are connected in parallel, low pass filter and filter circuit plate can be assembled together easily, reduced the assembly difficulty between low pass filter and the filter circuit plate, and first connecting plate and second connecting plate can not produce more stray inductance and stray capacitance, make low pass filter and filter circuit plate have filter effect preferably, improved the filtering performance of filter.
Aforesaid filter, firm first flanging is installed on the first input end of low pass filter for convenience.The end of described first flanging offers first through hole; The first input end of described low pass filter is provided with first double-screw bolt; Described first through hole is set on described first double-screw bolt, is spirally connected by nut and described first double-screw bolt, described first flanging is installed in the first input end of described low pass filter.
Aforesaid filter, firm second flanging is installed on the filter circuit plate for convenience, and second flanging is electrically connected with the first input end of filter circuit plate.The end of described second flanging offers second through hole; Described filter also comprises first copper nut and first bolt; Described first bolt passes described second through hole from bottom to top and is spirally connected with described first copper nut; First installing hole that described filter circuit plate is offered is set on described first bolt, is spirally connected by nut and described first bolt, and described second flanging is installed on the described filter circuit plate; And described filter circuit plate is resisted against the upper surface of described first copper nut, is electrically connected with described second flanging by the first input end of described first copper nut with filter circuit plate.
Aforesaid filter is for convenient first installing hole with filter circuit plate is set on first bolt.Described second through hole is the elliptical aperture structure.
Aforesaid filter, firm the 3rd flanging is installed on second input of low pass filter for convenience.The end of described the 3rd flanging offers third through-hole; Second input of described low pass filter is provided with second double-screw bolt; Described third through-hole is set on described second double-screw bolt, is spirally connected by nut and described second double-screw bolt, described the 3rd flanging is installed in second input of described low pass filter.
Aforesaid filter, firm Fourth Fold is installed on the filter circuit plate for convenience, and Fourth Fold is electrically connected with second input of filter circuit plate.The end of described Fourth Fold offers fourth hole; Described filter also comprises second copper nut and second bolt; Described second bolt passes described fourth hole from bottom to top and is spirally connected with described second copper nut; Second installing hole that described filter circuit plate is offered is set on described second bolt, is spirally connected by nut and described second bolt, and described Fourth Fold is installed on the described filter circuit plate; And described filter circuit plate is resisted against the upper surface of described second copper nut, is electrically connected with described Fourth Fold by second input of described second copper nut with filter circuit plate.
Aforesaid filter is for convenient second installing hole with filter circuit plate is set on second bolt.Described fourth hole is the elliptical aperture structure.
Aforesaid filter, the earth connection with low pass filter and filter circuit plate for convenience is electrically connected.Filter also comprises: the 3rd connecting plate comprises the 5th flanging and the 6th flanging; Described the 5th flanging is installed on the described low pass filter, and is electrically connected with the earth connection of described low pass filter; Described the 6th flanging is installed on the described filter circuit plate, and is electrically connected with the earth connection of described filter circuit plate.
Aforesaid filter is for more firm being fixed on the low pass filter of filter circuit plate.Filter also comprises: the 4th connecting plate more than comprises the 7th flanging and the 8th flanging; Described the 7th flanging is installed in the output of described low pass filter, and described the 8th flanging is installed on the described filter circuit plate.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the front view of the utility model filter;
Fig. 2 is the vertical view of the utility model filter;
Fig. 3 is the stereogram of the utility model filter;
Fig. 4 is the front view of first connecting plate in the utility model filter;
Fig. 5 is the vertical view of first connecting plate in the utility model filter;
Fig. 6 is the left view of first connecting plate in the utility model filter;
Fig. 7 is the front view of first copper nut in the utility model filter;
Fig. 8 is the left view of first copper nut in the utility model filter.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing among the utility model embodiment, technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 1 is the front view of the utility model filter, and Fig. 2 is the vertical view of the utility model filter, and Fig. 3 is the stereogram of the utility model filter.The present embodiment filter comprises low pass filter 1 and filter circuit plate 2, wherein, also comprises: first connecting plate and second connecting plate; First connecting plate comprises that first flanging 31 and second flanging, 32, the second connecting plates comprise the 3rd flanging 33 and Fourth Fold 34.Wherein, first connecting plate in the present embodiment and second connecting plate can adopt electric conducting materials such as copper.
Concrete, Fig. 4 is the front view of first connecting plate in the utility model filter, and Fig. 5 is the vertical view of first connecting plate in the utility model filter, and Fig. 6 is the left view of first connecting plate in the utility model filter.Extremely shown in Figure 6 as Fig. 4, firm first flanging 31 is installed on the first input end of low pass filter 1 for convenience.The end of first flanging 31 in the present embodiment can offer first through hole 311; The first input end of low pass filter 1 is provided with first double-screw bolt 11; First through hole 311 is set on first double-screw bolt 11, is spirally connected by the nut and first double-screw bolt 11, first flanging 31 is installed in the first input end of low pass filter 1.By on first flanging 31, offering first through hole 311, and first flanging 31 is fixedly connected on the double-screw bolt 11 of low pass filter 1 by first through hole 311, thereby realizes that first flanging 31 is electrically connected with the first input end of low pass filter 1.
Further, firm second flanging 32 is installed on the filter circuit plate 2 for convenience, and second flanging 32 is electrically connected with the first input end of filter circuit plate 2.As shown in Figure 7 and Figure 8, the end of second flanging 32 in the present embodiment offers second through hole 321; Filter also comprises first copper nut 41 and first bolt 51; First bolt 51 passes second through hole 321 from bottom to top and is spirally connected with first copper nut 41; First installing hole (not shown) that filter circuit plate 2 is offered is set on first bolt 51, is spirally connected by the nut and first bolt 51, and second flanging 32 is installed on the filter circuit plate 2; And filter circuit plate 2 is resisted against the upper surface of first copper nut 41, is electrically connected with second flanging 32 by the first input end of first copper nut 41 with filter circuit plate 2.Concrete, second flanging 32 is being installed in the process of filter circuit plate 2, at first first bolt 51 is passed second through hole 321 that the end of second flanging 32 is offered, and first bolt 51 is installed on second flanging 32 by first copper nut 41; With first installing hole of offering on the filter circuit plate 2, be enclosed within first bolt 51 and stretch out on the position of first copper nut 41, and filter circuit plate 2 is fixed on second flanging 32 then by nut; Filter circuit plate 2 contacts with first copper nut 41, thereby the first input end of filter circuit plate 2 is electrically connected with second flanging 32 by first copper nut 41.
Further, be set on first bolt 51 for convenient first installing hole filter circuit plate 2.Second through hole 321 is the elliptical aperture structure.By second through hole 321 is set to the elliptical aperture structure, can regulate the position of first bolt 51 on second flanging 32 easily, make first installing hole of filter circuit plate 2 can aim at first bolt 51 accurately, thus can be convenient filter circuit plate 2 is installed on second flanging 32.
The 3rd flanging 33 is installed in second input of low pass filter 1; Fourth Fold 34 is installed on the filter circuit plate 2, and is electrically connected with second input of filter circuit plate 2.
Concrete, the structure with first flanging 31 and second flanging 32 is identical respectively with Fourth Fold 34 for the 3rd flanging 33 in the present embodiment, no longer the concrete structure of the 3rd flanging 33 and Fourth Fold 34 is described at this, can with reference in the accompanying drawing 4 to Fig. 6 about the record of first flanging 31 and second flanging 32.Firm the 3rd flanging 33 is installed on second input of low pass filter 1 for convenience.The end of the 3rd flanging 33 in the present embodiment offers third through-hole (not shown); Second input of low pass filter 1 is provided with second double-screw bolt 12; Third through-hole is set on second double-screw bolt 112, is spirally connected by the nut and second double-screw bolt 12, the 3rd flanging 33 is installed in second input of low pass filter 1.Wherein, third through-hole in the present embodiment is identical with the structure of first through hole 311, the connection procedure that the 3rd flanging 33 is installed in low pass filter 1 second input is identical with the connection procedure that first flanging 31 is installed in low pass filter 1 first input end, does not repeat them here.
Further, firm Fourth Fold 34 is installed on the filter circuit plate 2 for convenience, and Fourth Fold 34 is electrically connected with second input of filter circuit plate 2.The end of the Fourth Fold 34 in the present embodiment can offer fourth hole; Filter also comprises second copper nut 42 and second bolt 52; Second bolt 52 passes fourth hole from bottom to top and is spirally connected with second copper nut 42; Second installing hole that filter circuit plate 2 is offered is set on second bolt 52, is spirally connected by the nut and second bolt 52, and Fourth Fold 34 is installed on the filter circuit plate 2; And filter circuit plate 2 is resisted against the upper surface of second copper nut 42, is electrically connected with Fourth Fold 34 by second input of second copper nut 42 with filter circuit plate 2.Wherein, fourth hole is identical with the structure of second through hole 321; The structure with first copper nut 41 and first bolt 51 is identical respectively with second bolt 52 for second copper nut 42.The process that is installed to filter circuit plate 2 of Fourth Fold 34 is identical with second flanging 32, does not repeat them here.
Further, be set on second bolt 52 for convenient second installing hole filter circuit plate 2.Fourth hole in the present embodiment is the elliptical aperture structure.
As from the foregoing, low pass filter 1 is connected in parallel with second connecting plate by first connecting plate with filter circuit plate 2 and is in the same place, and first connecting plate and second connecting plate are with filter circuit plate 2 firm being fixed on the low pass filter 1.
The utility model embodiment filter, by first connecting plate and second connecting plate low pass filter and filter circuit plate are connected in parallel, low pass filter and filter circuit plate can be assembled together easily, reduced the assembly difficulty between low pass filter and the filter circuit plate, and first connecting plate and second connecting plate can not produce more stray inductance and stray capacitance, make low pass filter and filter circuit plate have filter effect preferably, improved the filtering performance of filter.In addition, first connecting plate and second connecting plate are also with low pass filter and firm being fixed together of filter circuit plate, the present embodiment filter only needs low pass filter is fixed on the external equipment, for example, low pass filter is fixed on current transformer inside, just can with filter circuit plate simultaneously firm be fixed on current transformer inside, thereby the fixture that need not to set up other is fixed filter circuit plate, make the assembling process of present embodiment filter convenient simple, and make the structure of filter more compact.
Based on technique scheme, optionally, the earth connection with low pass filter 1 and filter circuit plate 2 for convenience is electrically connected.Filter also comprises: the 3rd connecting plate.The 3rd connecting plate comprises the 5th flanging 35 and the 6th flanging 36; The 5th flanging 35 is installed on the low pass filter 1, and is electrically connected with the earth connection of low pass filter 1; The 6th flanging 36 is installed on the filter circuit plate 2, and is electrically connected with the earth connection of filter circuit plate 2.
Particularly, the 3rd connecting plate in the present embodiment can be identical with the structure of first connecting plate.The earth connection that the 3rd connecting plate is mainly used in low pass filter 1 and filter circuit plate 2 links together.For example, the 3rd connecting plate in the present embodiment can adopt the connected mode identical with first connecting plate to connect.Concrete, the 5th flanging 35 is fixedlyed connected with the 3rd double-screw bolt 13 that low pass filter 1 earth connection port is provided with, and the 6th flanging 36 can pass through parts such as first bolt 51, first copper nut 41 and be electrically connected with the earth connection of filter circuit plate 2.Can be easily the earth connection of low pass filter 1 and filter circuit plate 2 be linked together by the 3rd connecting plate, and the 3rd connecting plate also can be used for filter circuit plate 2 is fixed on low pass filter 1, thereby makes the structure of present embodiment filter more compact.
Based on technique scheme, optionally, for filter circuit plate 2 more firm being fixed on the low pass filter 1.Filter also comprises: the 4th connecting plate more than comprises the 7th flanging 37 and the 8th flanging 38; The 7th flanging 37 is installed in the output of low pass filter 1, and the 8th flanging 38 is installed on the filter circuit plate 2.
Particularly, the 4th connecting plate in the present embodiment can be identical with the structure of first connecting plate.The 7th flanging 37 of the 4th connecting plate and the 8th flanging 38 can adopt the connected mode identical with second flanging 32 with first flanging 31, and low pass filter 1 is fixedlyed connected with filter circuit plate 2.Concrete connection procedure can not repeat them here referring to the connection procedure of first connecting plate in the present embodiment.By the 4th connecting plate is set low pass filter 1 is fixedlyed connected with filter circuit plate 2, the both sides that make filter circuit plate 2 are simultaneously by the 4th connecting plate and first connecting plate and the second connecting plate fixed support, thereby make filter circuit plate 2 more firm being fixed on the low pass filter 1.
In addition, first connecting plate in the present embodiment filter, second connecting plate, the 3rd connecting plate, first copper nut 41 and second copper nut 42 are after machine-shaping, can carry out zinc-plated processing, thereby make it reach the decay resistance height, and more attractive in appearance.
It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (9)
1. a filter comprises low pass filter and filter circuit plate, it is characterized in that, also comprises: first connecting plate and second connecting plate; Described first connecting plate comprises first flanging and second flanging, and described second connecting plate comprises the 3rd flanging and Fourth Fold;
Wherein, described first flanging is installed in the first input end of described low pass filter; Described second flanging is installed on the described filter circuit plate, and is electrically connected with the first input end of described filter circuit plate;
Described the 3rd flanging is installed in second input of described low pass filter; Described Fourth Fold is installed on the described filter circuit plate, and is electrically connected with second input of described filter circuit plate.
2. filter according to claim 1 is characterized in that the end of described first flanging offers first through hole; The first input end of described low pass filter is provided with first double-screw bolt; Described first through hole is set on described first double-screw bolt, is spirally connected by nut and described first double-screw bolt, described first flanging is installed in the first input end of described low pass filter.
3. filter according to claim 2 is characterized in that the end of described second flanging offers second through hole; Described filter also comprises first copper nut and first bolt; Described first bolt passes described second through hole from bottom to top and is spirally connected with described first copper nut; First installing hole that described filter circuit plate is offered is set on described first bolt, is spirally connected by nut and described first bolt, and described second flanging is installed on the described filter circuit plate; And described filter circuit plate is resisted against the upper surface of described first copper nut, is electrically connected with described second flanging by the first input end of described first copper nut with filter circuit plate.
4. filter according to claim 3 is characterized in that, described second through hole is the elliptical aperture structure.
5. filter according to claim 1 is characterized in that the end of described the 3rd flanging offers third through-hole; Second input of described low pass filter is provided with second double-screw bolt; Described third through-hole is set on described second double-screw bolt, is spirally connected by nut and described second double-screw bolt, described the 3rd flanging is installed in second input of described low pass filter.
6. filter according to claim 5 is characterized in that the end of described Fourth Fold offers fourth hole; Described filter also comprises second copper nut and second bolt; Described second bolt passes described fourth hole from bottom to top and is spirally connected with described second copper nut; Second installing hole that described filter circuit plate is offered is set on described second bolt, is spirally connected by nut and described second bolt, and described Fourth Fold is installed on the described filter circuit plate; And described filter circuit plate is resisted against the upper surface of described second copper nut, is electrically connected with described Fourth Fold by second input of described second copper nut with filter circuit plate.
7. filter according to claim 6 is characterized in that, described fourth hole is the elliptical aperture structure.
8. filter according to claim 1 is characterized in that, also comprises:
The 3rd connecting plate comprises the 5th flanging and the 6th flanging; Described the 5th flanging is installed on the described low pass filter, and is electrically connected with the earth connection of described low pass filter; Described the 6th flanging is installed on the described filter circuit plate, and is electrically connected with the earth connection of described filter circuit plate.
9. according to the arbitrary described filter of claim 1 to 8, it is characterized in that, also comprise: the 4th connecting plate more than comprises the 7th flanging and the 8th flanging; Described the 7th flanging is installed in the output of described low pass filter, and described the 8th flanging is installed on the described filter circuit plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202663418U CN201536321U (en) | 2009-11-10 | 2009-11-10 | Filter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202663418U CN201536321U (en) | 2009-11-10 | 2009-11-10 | Filter device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201536321U true CN201536321U (en) | 2010-07-28 |
Family
ID=42536095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202663418U Expired - Fee Related CN201536321U (en) | 2009-11-10 | 2009-11-10 | Filter device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201536321U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107508453A (en) * | 2017-10-20 | 2017-12-22 | 孙岳 | A kind of wave filter for reducing internal interference |
-
2009
- 2009-11-10 CN CN2009202663418U patent/CN201536321U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107508453A (en) * | 2017-10-20 | 2017-12-22 | 孙岳 | A kind of wave filter for reducing internal interference |
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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: 20100728 Termination date: 20111110 |