CN2365752Y - Anti interfering capacitor - Google Patents
Anti interfering capacitor Download PDFInfo
- Publication number
- CN2365752Y CN2365752Y CN 99227501 CN99227501U CN2365752Y CN 2365752 Y CN2365752 Y CN 2365752Y CN 99227501 CN99227501 CN 99227501 CN 99227501 U CN99227501 U CN 99227501U CN 2365752 Y CN2365752 Y CN 2365752Y
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- capacitor
- inductance
- parallel
- interference
- electric capacity
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Abstract
The utility model relates to an anti interfering capacitor, which comprises an insulating casing, a capacitance element, an inlet wire and an outlet wire. The utility model is characterized in that the capacitor is also provided with electrical inductance and a capacitance element, the electrical inductance is connected with the inlet and the outlet wires in series, and the capacitance element is connected with the inlet and the outlet wires in parallel. The capacitor and the electrical inductance are integrally encapsulated in the casing, and the metal pins of the inlet and the outlet wires are arranged on the casing.
Description
The utility model relates to a kind of anti-interference condenser, relates in particular to the electrical appliance electromagnetic compatibility and the capacitor that uses.
Household electrical appliance need the power supply that relatively purifies, and as developed country electrical equipment are needed electromagnetic compatibility standard, and the work of microprocessor on the electrical equipment will be added reliably.Simultaneously, can send the interference electric wave to electrical network again, therefore, need on electrical equipment, use means for anti-jamming as the use of electrical equipment such as microwave oven.The anti-interference condenser full name is for suppressing the electromagnetic interference capacitor.
The combined capacitor that existing inhibition power supply disturbs can be referring to CN92218160.8, it is formed with several capacitors, its arrangement is arranged in the cavity of shell, shell top securing cover plate, but it is a filtering capacitor, can not have the jamproof effect in broadband, also be single device in essence.The four pin noninductive capacitors that CN92243551.0 proposes are connected with two lead-foot-lines on each electrode, eliminate the influence of pin inductance in bypass loop, make the characteristic of electric capacity unaffected, and this is the preferred capacitor that uses in the anti-high-frequency interferencing circuit.Yet there are no to be exclusively used in and suppress the combined capacitor that power supply disturbs.Really, the anti-jamming circuit of power supply solution power supply and electrical network have enough schemes to the interference of electrical equipment, as being barricaded as by discrete electric capacity, inductance element, do not have Secure Shell, and integral body is not dressed up in combination.If often need the loop that higher index is arranged when electrical equipment needs power conditioner, go back the simple effective scheme of neither one in fact at present and make electrical equipment obtain a power supply that relatively purifies.
The purpose of this utility model provides a kind of composite type anti-interference capacitor, and the purpose of this utility model also is to provide a kind of and has the wideband anti-interference capacitor, and easy for installation, uses reliable.
The purpose of this utility model is achieved in that a kind of anti-interference condenser, comprise insulation crust and capacity cell, inlet wire and outlet composition, it is characterized in that also being provided with in addition inductance, capacity cell, inductance is series at the turnover line, capacity cell is parallel to the turnover line, electric capacity and inductance overall package pass in and out line and be provided with metal pins on shells in the enclosure.
Further improvement of the utility model is that at turnover line parallel bleeder resistance, the other end is provided with construction bolt on the electric capacity shell.
Characteristics of the present utility model are: the utility model is the high efficiency and broad band means for anti-jamming, includes radio-frequency filter, absorbs spike and disturbs, and can reach 40db to the inhibition of disturbing.Pulse signal input the utility model capacitor when having complicated radio frequency waveform at the output of capacitor, uses ordinary oscilloscope can test the sine wave of a standard.The utility model anti-interference condenser mainly is applicable to household electrical appliance such as washing machine, dishwasher, air-conditioning, and its performance index reach GB/T 14,472 93, suppresses electromagnetic interference, reaches the requirement that suppresses radio frequency interference.And the utility model structure is simple and clear, install easily, and reliable operation, fail safe is good, and it is supporting to be suitable for family expenses, guarantees the power supply that electrical equipment is purified, and makes the interference of electrical equipment attenuating to electrical network again.
The utility model is described in further detail below in conjunction with accompanying drawing and by embodiment:
Fig. 1 is the anti-interference condenser structural representation, and Fig. 2 is the electrical schematic diagram of Fig. 1.
Referring to Fig. 1, Fig. 2, its composition is such: electric capacity in parallel is the self-healing capacitor C1 (metalizing polypropylene thin film capacitor) of a higher capacity (0.47 μ F), it in network X2 level capacitor, in parallel with large capacitor again after the series connection of 2 low capacities (0.01 μ F) self-healing capacitor, it is Y level capacitor C2, C3.Be connected on 2 small coil L1, L2 around the soft magnetism ring of inlet wire and outlet, inductance value is 0.5mH, has formed current compensation type inhibition radio frequency interference choke L1, L2 and has promptly formed common mode choke, and L1 goes here and there in the live wire end of incoming cables, and L2 goes here and there in the center line end of incoming cables.The bleeder resistance of a 0.5--10M in parallel at X2 level capacitor two ends, the resistance R of 2W0.68M Ω in parallel in the present embodiment.Capacitor exit is five, and wherein L (2), N (4) are input, and U (1), U (3) are output, and remaining an end is earth terminal.Shell 1 is made for flame-proof ABS, and the other end is provided with construction bolt 2,3 embeddings of epoxy insulation material.
When having operating current, input enters, at first pass through inductance, (50/60HZ) emotional resistance is low on mains frequency, and on high frequency the emotional resistance height, thereby the additional high-frequency current that enters in the operating current of restriction, through capacitor bank the time, the filter action of capacitor further weakens high-frequency impulse, reduce the radio frequency reception interference effect that electric equipment produces thereby reach, also reduce the influence of electric equipment electric network source.The utility model is a CBB65-2 type combined capacitor.
Claims (3)
1. anti-interference condenser, comprise insulation crust and capacity cell, inlet wire and outlet composition, it is characterized in that also being provided with in addition inductance, capacity cell, inductance is series at the turnover line, capacity cell is parallel to the turnover line, electric capacity and inductance overall package pass in and out line and be provided with metal pins on shells in the enclosure.
2. by the described anti-interference condenser of claim 1, it is characterized in that electric capacity in parallel is a metallized polypropylene film self-healing capacitor (C1), other is in parallel with self-healing capacitor (C1) again after having two electric capacity (c2, c3) to connect.
3. by the described anti-interference condenser of claim 1, it is characterized in that being connected on inlet wire and outlet series connection two small coils (L1, L2), form common mode choke around the soft magnetism ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99227501 CN2365752Y (en) | 1999-03-17 | 1999-03-17 | Anti interfering capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99227501 CN2365752Y (en) | 1999-03-17 | 1999-03-17 | Anti interfering capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2365752Y true CN2365752Y (en) | 2000-02-23 |
Family
ID=34017004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99227501 Expired - Fee Related CN2365752Y (en) | 1999-03-17 | 1999-03-17 | Anti interfering capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2365752Y (en) |
-
1999
- 1999-03-17 CN CN 99227501 patent/CN2365752Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |