CN204290904U - Traffic filter - Google Patents
Traffic filter Download PDFInfo
- Publication number
- CN204290904U CN204290904U CN201420705086.3U CN201420705086U CN204290904U CN 204290904 U CN204290904 U CN 204290904U CN 201420705086 U CN201420705086 U CN 201420705086U CN 204290904 U CN204290904 U CN 204290904U
- Authority
- CN
- China
- Prior art keywords
- common mode
- electric capacity
- mode inductance
- filtering cavity
- inductance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000001914 filtration Methods 0.000 claims abstract description 45
- 239000003990 capacitor Substances 0.000 claims abstract description 9
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 8
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Filters And Equalizers (AREA)
Abstract
The utility model is a kind of traffic filter, comprise filtering cavity and cover plate, common mode inductance L1 and common mode inductance L2 is from left to right disposed with at the middle part of this filtering cavity, electric capacity C9 is provided with on the left of described common mode inductance L1, resistance R1 is provided with between described common mode inductance L1 and common mode inductance L2, on the right side of described common mode inductance L2, electric capacity C3 and electric capacity C4 is set, the right side of this electric capacity C3 and electric capacity C4 arranges voltage stabilizing didoe D1 and voltage stabilizing didoe D2, on the both sides, front and back of described common mode inductance L1 and common mode inductance L2, distribution is provided with electric capacity C5, C6, C7 and C8, described filtering cavity right side wall is inlayed and is provided with feedthrough capacitor C1, C2 and filtration module, inlay in the upper side wall of described filtering cavity and be provided with insulated terminal, and this insulated terminal is near the left side wall of described filtering cavity.The utility model structure is simple, and easy to assembly, protection against the tide, heat conduction, anti-vibration, operate steadily.
Description
Technical field
The utility model relates to technical field of filtering, is specifically related to a kind of traffic filter.
Background technology
Filter is as the equipment by the noise signal filtering in circuit, be widely used in electronic equipment of various, especially in the fields such as communication equipment, Aero-Space, on-board equipment, electromagnetic environment bandwidth, field intensity is large, higher to the requirement of filter circuit, will directly affect the safe and reliable operation of relevant device.
Along with the development of science and technology, more and more higher to the miniaturization of equipment, integrated requirement, require that the space of filter is the smaller the better at electronic equipment, the many employings of traditional filter on substrate or circuit board by after electronic component installation, reinstall in filter cavity, although easy for installation like this, volume is comparatively large, inadaptable miniaturized, integrated requirement.
Utility model content
The utility model, for the deficiencies in the prior art, proposes a kind of shield effectiveness good, and electric property is stablized, and volume is little, the simple traffic filter of production technology.Concrete technical scheme is as follows:
A kind of traffic filter, comprise filtering cavity (1) and cover plate (2), common mode inductance L1 and common mode inductance L2 is from left to right disposed with at the middle part of this filtering cavity (1), electric capacity C9 is provided with on the left of described common mode inductance L1, resistance R1 is provided with between described common mode inductance L1 and common mode inductance L2, on the right side of described common mode inductance L2, electric capacity C3 and electric capacity C4 is set, the right side of this electric capacity C3 and electric capacity C4 arranges voltage stabilizing didoe D1 and voltage stabilizing didoe D2, on the both sides, front and back of described common mode inductance L1 and common mode inductance L2, distribution is provided with electric capacity C5, C6, C7 and C8, described filtering cavity (1) right side wall is inlayed and is provided with feedthrough capacitor C1, C2 and filtration module (3), inlay in the upper side wall of described filtering cavity (1) and be provided with insulated terminal (4), and this insulated terminal (4) is near the left side wall of described filtering cavity (1).
The utility model realizes like this, wire is connected on insulated terminal (4), each electronic component in filtering cavity (1) is electrically connected, wherein filtration module is signal output part, in the utility model, by the terminal of each electronic component directly or connected by wire, grounding connection can be carried out easily with filtering cavity (1), the length of earth lead can be reduced to greatest extent, installing space can be saved, and according to the size of component size, the position of each electronic component of rational deployment, the locus of filtering cavity can be utilized to greatest extent, while guarantee electrical connection reliability, volume can be reduced to greatest extent.Wherein inlayed by feedthrough capacitor C1 and C2 in the sidewall being arranged on filtering cavity (1), while reduction volume, can make the better ground connection of feedthrough capacitor, filter effect is better.
For better realizing the utility model, may further be:
Described electric capacity C3 and electric capacity C4 overlaps up and down, can utilize the locus of filter cavity to greatest extent, realize miniaturization to greatest extent.
In described filtering cavity (1), embedding has adhesive, and each electronic component in filtering cavity can be made to form an entirety, and anti seismic efficiency is better, plays heat conduction and moistureproof effect simultaneously, improves quality of the present utility model further.
Described filtering cavity (1) for metal material one-body molded, described cover plate (2) and this filtering cavity (1) are fixed by sunk screw.Adopt one-body molded processing easy to assembly, shield effectiveness is better, better adapts to complicated electromagnetic wave environment, expands range of application of the present utility model.
The beneficial effects of the utility model are: structure is simple, easy to assembly, by coordinating each electronic component volume size, realize Appropriate application to space, be convenient to the demand of all parts ground connection nearby simultaneously, reduce volume further, the mode of embedding is adopted to be sealed by all parts, protection against the tide, heat conduction, anti-vibration, make the utility model operate steadily reliably, finally realizes product miniaturization, integrated.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is the rearview of this Fig. 1;
Fig. 4 is electrical block diagram of the present utility model.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
As Fig. 1, shown in Fig. 2 and Fig. 3: a kind of traffic filter, comprise the integrated filtering cavity 1 of aluminium and cover plate 2, be fixed together by sunk screw to cover plate 2 and this filtering cavity 1, common mode inductance L1 and common mode inductance L2 is from left to right disposed with at the middle part of this filtering cavity 1, electric capacity C9 is provided with on the left of described common mode inductance L1, resistance R1 is provided with between described common mode inductance L1 and common mode inductance L2, on the right side of described common mode inductance L2, electric capacity C3 and electric capacity C4 is set, this electric capacity C3 and electric capacity C4 overlaps up and down, the right side of this electric capacity C3 and electric capacity C4 is provided with the voltage stabilizing didoe D1 and voltage stabilizing didoe D2 that overlap up and down, on the both sides, front and back of described common mode inductance L1 and common mode inductance L2, distribution is provided with electric capacity C5, C6, C7 and C8, described filtering cavity 1 right side wall is inlayed and is provided with feedthrough capacitor C1, C2 and filtration module 3, and at feedthrough capacitor C1, the outside of C2 and filtration module 3 adopts adhesive encapsulation, moistureproof object is played while fixing, inlay in the upper side wall of described filtering cavity 1 and be provided with insulated terminal 4, and this insulated terminal 4 is near the left side wall of described filtering cavity 1, in described filtering cavity 1, fill adhesive, by each electronic package together.
As shown in Figure 4: described common mode inductance L1 is made up of inductance L 11 and L12, common mode inductance L1 is made up of inductance L 21 and L22, described inductance L 11 accesses in N loop after connecting with inductance L 21, feedthrough capacitor C2 is in series with between this N loop input and described inductance L 11, described inductance L 21 accesses in P loop after connecting with inductance L 22, is in series with feedthrough capacitor C1 between the input in this P loop and described inductance L 12;
Input in described N loop and P loop is respectively through TVS pipe D2 and TVS pipe D1 ground connection, between described inductance L 11 and the input of inductance L 12, cross-over connection has electric capacity C3, between the output of inductance L 12 and inductance L 11, cross-over connection has electric capacity C4, resistance R1 is had in the two ends cross-over connection of electric capacity C4, at the two ends of this resistance R1 respectively through electric capacity C5, electric capacity C6 ground connection, have electric capacity C9 in described inductance L 21 and the cross-over connection of inductance L 22 output, the two ends of this electric capacity C9 are respectively through electric capacity C7 and C8 ground connection; The output of described inductance L 21 and inductance L 22 is respectively as two outputs of filter circuit.
Wherein said N loop is connected with the inner of insulated terminal 4 with the input in P loop, the outer end of this insulated terminal 4 is connected with miscellaneous equipment by wire, N loop is connected with the inner of filtration module 3 with the output in P loop, in the utility model, on the basis of two-stage common mode inductance, electric capacity C1 and C2 is utilized to form High frequency filter unit, can effective filtering high-frequency interferencing signal, electric capacity C3, C4 and C9 forms intermediate frequency filtering unit, electric capacity C5, C6, C7, C8 forms low-frequency filter circuit, whole circuit effectively achieves and carries out filtering to high, normal, basic frequency electromagnetic waves signal, structure is simple, have wide range of applications.
Claims (4)
1. a traffic filter, it is characterized in that: comprise filtering cavity (1) and cover plate (2), common mode inductance L1 and common mode inductance L2 is from left to right disposed with at the middle part of this filtering cavity (1), electric capacity C9 is provided with on the left of described common mode inductance L1, resistance R1 is provided with between described common mode inductance L1 and common mode inductance L2, on the right side of described common mode inductance L2, electric capacity C3 and electric capacity C4 is set, the right side of this electric capacity C3 and electric capacity C4 arranges voltage stabilizing didoe D1 and voltage stabilizing didoe D2, on the both sides, front and back of described common mode inductance L1 and common mode inductance L2, distribution is provided with electric capacity C5, C6, C7 and C8, described filtering cavity (1) right side wall is inlayed and is provided with feedthrough capacitor C1, C2 and filtration module (3), inlay in the upper side wall of described filtering cavity (1) and be provided with insulated terminal (4), and this insulated terminal (4) is near the left side wall of described filtering cavity (1).
2. traffic filter according to claim 1, is characterized in that: described electric capacity C3 and electric capacity C4 overlaps up and down.
3. traffic filter according to claim 1, is characterized in that: in described filtering cavity (1), embedding has adhesive.
4. traffic filter according to claim 1, is characterized in that: described filtering cavity (1) for metal material one-body molded, described cover plate (2) and this filtering cavity (1) are fixed by sunk screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420705086.3U CN204290904U (en) | 2014-11-20 | 2014-11-20 | Traffic filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420705086.3U CN204290904U (en) | 2014-11-20 | 2014-11-20 | Traffic filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204290904U true CN204290904U (en) | 2015-04-22 |
Family
ID=52874030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420705086.3U Expired - Fee Related CN204290904U (en) | 2014-11-20 | 2014-11-20 | Traffic filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204290904U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106129671A (en) * | 2016-08-22 | 2016-11-16 | 重庆大及电子科技有限公司 | A kind of integrated form cabinet filter band structure |
| CN107834842A (en) * | 2017-11-15 | 2018-03-23 | 珠海经济特区金品电器有限公司 | The anti-clutter circuit and television set of a kind of while powered TV set and set top box |
-
2014
- 2014-11-20 CN CN201420705086.3U patent/CN204290904U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106129671A (en) * | 2016-08-22 | 2016-11-16 | 重庆大及电子科技有限公司 | A kind of integrated form cabinet filter band structure |
| CN106129671B (en) * | 2016-08-22 | 2018-09-04 | 重庆大及电子科技有限公司 | A kind of integrated form cabinet filtering harden structure |
| CN107834842A (en) * | 2017-11-15 | 2018-03-23 | 珠海经济特区金品电器有限公司 | The anti-clutter circuit and television set of a kind of while powered TV set and set top box |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204290902U (en) | Integral filter | |
| CN102360727A (en) | Plane magnetic integrated electro magnetic interference (EMI) filter | |
| CN204290904U (en) | Traffic filter | |
| CN101466060B (en) | Electret condenser microphone | |
| CN201656757U (en) | Multi-path input/output AC/DC power supply and signal wire filtering filter | |
| CN204289659U (en) | The filter of Belt connector | |
| CN105375090A (en) | Quickly mounted filter board | |
| CN105703065A (en) | Printed cable and preparation method thereof, connection cable and electrically-adjustable antenna system | |
| CN204315751U (en) | A kind of rectangle multi-tap | |
| CN206481215U (en) | A kind of EMC connectors and electric machine controller | |
| CN216145762U (en) | Bluetooth headset antenna, Bluetooth headset and electronic equipment | |
| CN104184431A (en) | High-frequency ceramic surface mounting transverse surface acoustic wave resonance filter | |
| CN204289658U (en) | Integrated filter | |
| CN209169985U (en) | Wireless system and wireless device | |
| CN207819087U (en) | Connecting terminal and electronic equipment | |
| CN201345731Y (en) | Electret capacitor microphone | |
| CN105406285A (en) | Electronic connector with excellent electromagnetic shielding performance | |
| CN202679238U (en) | Power supply module | |
| CN205792232U (en) | Power-supply filter module | |
| CN203456668U (en) | Novel RJ grounding structure | |
| US20190297758A1 (en) | Electromagnetic shielding cap, an electrical system and a method for forming an electromagnetic shielding cap | |
| CN205092239U (en) | Infrared receiving head packaging structure | |
| CN205159475U (en) | Install formula filtering board fast | |
| CN203119064U (en) | Enhancement type high-frequency transduction filter | |
| CN221058596U (en) | Power filter and electronic device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20150422 |