CN201608531U - Ultra-wideband power filter used for maneuvering carrier - Google Patents
Ultra-wideband power filter used for maneuvering carrier Download PDFInfo
- Publication number
- CN201608531U CN201608531U CN2009203192703U CN200920319270U CN201608531U CN 201608531 U CN201608531 U CN 201608531U CN 2009203192703 U CN2009203192703 U CN 2009203192703U CN 200920319270 U CN200920319270 U CN 200920319270U CN 201608531 U CN201608531 U CN 201608531U
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- filter circuit
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- circuit
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
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Abstract
The utility model relates to a filter, in particular to an ultra-wideband power filter used for a maneuvering carrier. The ultra-wideband power filter used for the maneuvering carrier is characterized by comprising a low-frequency reflective LC filter circuit and a coaxial distributed parameter circuit, wherein the low-frequency reflective LC filter circuit and the coaxial distributed parameter circuit form an absorbing filter circuit that is connected in series so as to form an L-L/passage and an N-N/passage. The ultra-wideband power filter used for the maneuvering carrier provides sufficient insertion loss and ensures small leakage current and safety on human body and equipment.
Description
Technical field
The utility model relates to a kind of filter, more particularly a kind of ultra-wide-band power supply filter that is used for mechanical carrier.
Background technology
In recent years, as the shielding shelter of electronics motor driven type carrier, be widely used in the electronic system on Aeronautics and Astronautics, naval vessel and ground.The non-constant width of electromagnetic environment frequency band of these systems, field intensity is also very big.Because electromagnetic wave passes through the field of radiation field a--coupling on the one hand to the electromagnetic coupled of shielding shelter, also can pass through the field of power line, holding wire on the other hand--the line coupling, for this reason for guaranteeing that the shielding shelter reaches the screening effectiveness of defined in such complex electromagnetic environments, the electromagnetic interference that elimination is introduced by power line then must development be inserted loss and the suitable power-supply filter of shielding shelter screening effectiveness index.Because the restriction of motor driven type carrier grounding requirement, be assurance operating personnel's the person and the safety of electronic equipment, the leakage current of shielding shelter power-supply filter must be limited in very little value, but the requirement of high screening effectiveness in broadband and low-leakage current is conflicting on Design of Filter, therefore the difficulty of ultra-wide-band power supply filter that is applicable to the motor driven type carrier is very big, is the problem that needs to be resolved hurrily.
Summary of the invention
The utility model is the ultra-wide-band power supply filter that is used for mechanical carrier, enough insertion losses can be provided and guarantee less leakage current, guarantees the safety of the person and equipment.
The utility model is achieved through the following technical solutions, the ultra-wide-band power supply filter that is used for mechanical carrier, it is characterized in that: comprise the absorption filter circuit that bass reflex type LC filter circuit and coaxial-type distributed circuit constitute, the absorption filter circuit that bass reflex type LC filter circuit and coaxial-type distributed circuit constitute is connected in series and forms L-L
/Passage and N-N
/Passage.
Described bass reflex type LC filter circuit 1 is made of two common mode inductance L1 and common mode inductance L2 and common mode capacitance Cy1, common mode inductance L1 is formed by the lower amorphous state sodium rice metal material coiling of cut-off frequency, for low frequency the good restraining effect is arranged; Common mode inductance L2 is that the coiling of MnZn material forms; The absorption filter circuit that the coaxial-type distributed circuit constitutes is that feedthrough capacitor constitutes by Cy2, and the feedthrough capacitor bulkhead comprises first cavity, second cavity, the 3rd cavity, the 4th cavity, and the feedthrough capacitor bulkhead connects waveguide; Common mode capacitance Cy1, Cy2 and L1 and L2 form L type filter circuit and T type filter circuit.
Described two common mode inductance L1 are parallel with common mode capacitance Cy1, are parallel with common mode capacitance Cy1 between the common mode inductance L2 of common mode inductance L1 and serial connection.
Described common mode capacitance Cy1 respectively has two, and two Cy1 are serially connected in L-L
/Passage and N-N
/Between the passage.
The reflecting filter circuit that the utility model is made up of the different common mode inductance of a plurality of frequency characteristics, common mode capacitance that distributed inductance is very little, and the absorption filter circuit that is made of the coaxial-type distributed circuit is constituted.Owing to optimized common mode capacitance, make the power-supply filter leakage current of being invented less than 50mA, the many compartment structures that adopted simultaneously and the shielding syndeton of waveguide and bulkhead have realized the broadband filtering requirements of shelter.The characteristics that its leakage current is little more can be guaranteed the safety of the person and equipment.It is applicable to the ac and dc systems supply lines filtering of mechanical carrier, electronics shelter.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described further.
Fig. 1 is the circuit theory diagrams in the specific embodiment;
Fig. 2 is the structure external form figure of a kind of specific embodiment of the utility model power-supply filter.
Among the figure: 1, bass reflex type LC filter circuit; 2, the absorption filter circuit of coaxial-type distributed circuit formation; 3, the 3rd cavity; 4, the 4th cavity; 5, feedthrough capacitor; 6, waveguide;
7, first cavity, 8, second cavity.
Embodiment
As shown in Figure 1, comprise the absorption filter circuit 2 that bass reflex type LC filter circuit 1 and coaxial-type distributed circuit constitute, the absorption filter circuit 2 that bass reflex type LC filter circuit 1 and coaxial-type distributed circuit constitute is connected in series and forms L-L
/Passage and N-N
/Passage.Bass reflex type LC filter circuit 1 is made of two common mode inductance L1 and common mode inductance L2 and common mode capacitance Cy1, and common mode inductance L1 is formed by the lower amorphous state sodium rice metal material coiling of cut-off frequency, for low frequency the good restraining effect is arranged.Common mode inductance L2 is that the coiling of MnZn material forms.Two common mode inductance L1 are parallel with common mode capacitance Cy1, are parallel with common mode capacitance Cy1 between the common mode inductance L2 of common mode inductance L1 and serial connection.Common mode capacitance Cy1 respectively has two, and two Cy1 are serially connected in L-L
/Passage and N-N
/Between the passage.
Distributed inductance in the middle of the common mode capacitance Cy1 very little, Ground leakage current is very little, common mode capacitance Cy1, Cy2 and L1 and L2 composition L type filter circuit and T type filter circuit.
See figures.1.and.2, Cy2 is feedthrough capacitor 5 structures, it and the 3rd cavity 3 and the 4th cavity 4 are formed the coaxial-type distributed circuits and are constituted absorption filter circuit, the many compartment structures of while the 3rd cavity 3, the 4th cavity 4, first cavity 7, second cavity 8 and the shielding syndeton of waveguide 6 and bulkhead, form a plurality of small shields, realization reaches the requirement of filter broadband filtering to noisy reflection and absorption.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.
Claims (4)
1. the ultra-wide-band power supply filter that is used for mechanical carrier, it is characterized in that: comprise the absorption filter circuit (2) that bass reflex type LC filter circuit (1) and coaxial-type distributed circuit constitute, the absorption filter circuit (2) that bass reflex type LC filter circuit (1) and coaxial-type distributed circuit constitute is connected in series and forms L-L/ passage and N-N/ passage.
2. the ultra-wide-band power supply filter that is used for mechanical carrier according to claim 1, it is characterized in that: bass reflex type LC filter circuit (1) is made of two common mode inductance L1 and common mode inductance L2 and common mode capacitance Cy1, common mode inductance L1 is formed by the lower amorphous state sodium rice metal material coiling of cut-off frequency, for low frequency the good restraining effect is arranged; Common mode inductance L2 is that the coiling of MnZn material forms; The absorption filter circuit (2) that the coaxial-type distributed circuit constitutes is that feedthrough capacitor (5) constitutes by Cy2, the feedthrough capacitor bulkhead comprises first cavity (7), second cavity (8), the 3rd cavity (3), the 4th cavity (4), and the feedthrough capacitor bulkhead connects waveguide (6); Common mode capacitance Cy1, Cy2 and L1 and L2 form L type filter circuit and T type filter circuit.
3. the ultra-wide-band power supply filter that is used for mechanical carrier according to claim 1 is characterized in that: two common mode inductance L1 are parallel with common mode capacitance Cy1, are parallel with common mode capacitance Cy1 between the common mode inductance L2 of common mode inductance L1 and serial connection.
4. the ultra-wide-band power supply filter that is used for mechanical carrier according to claim 1 is characterized in that: common mode capacitance Cy1 respectively has two, and two Cy1 are serially connected between L-L/ passage and the N-N/ passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203192703U CN201608531U (en) | 2009-12-31 | 2009-12-31 | Ultra-wideband power filter used for maneuvering carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203192703U CN201608531U (en) | 2009-12-31 | 2009-12-31 | Ultra-wideband power filter used for maneuvering carrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201608531U true CN201608531U (en) | 2010-10-13 |
Family
ID=42953232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203192703U Expired - Fee Related CN201608531U (en) | 2009-12-31 | 2009-12-31 | Ultra-wideband power filter used for maneuvering carrier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201608531U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101741090A (en) * | 2009-12-31 | 2010-06-16 | 西安开容电子技术有限责任公司 | Ultra-wide-band power supply filter for mechanical carrier and design method thereof |
-
2009
- 2009-12-31 CN CN2009203192703U patent/CN201608531U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101741090A (en) * | 2009-12-31 | 2010-06-16 | 西安开容电子技术有限责任公司 | Ultra-wide-band power supply filter for mechanical carrier and design method thereof |
| CN101741090B (en) * | 2009-12-31 | 2014-04-02 | 西安开容电子技术有限责任公司 | Ultra-wide-band power supply filter for mechanical carrier and design method thereof |
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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: 20101013 Termination date: 20121231 |