CN2155067Y - Energy-saving CT silencer for AC contactor - Google Patents
Energy-saving CT silencer for AC contactor Download PDFInfo
- Publication number
- CN2155067Y CN2155067Y CN 93211826 CN93211826U CN2155067Y CN 2155067 Y CN2155067 Y CN 2155067Y CN 93211826 CN93211826 CN 93211826 CN 93211826 U CN93211826 U CN 93211826U CN 2155067 Y CN2155067 Y CN 2155067Y
- Authority
- CN
- China
- Prior art keywords
- contactor
- voltage
- capacitor
- circuit
- coil
- 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
- 230000003584 silencer Effects 0.000 title description 4
- 239000003990 capacitor Substances 0.000 claims abstract description 13
- 230000005611 electricity Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
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- Keying Circuit Devices (AREA)
Abstract
The utility model belongs to a amortization power saving device for ac contactor. The key points are as follows: by a diode D1、D2、D3Forming a voltage doubler rectifier circuit for applying a voltage to the electrolytic capacitor C2And the two ends of the capacitor are subjected to high-voltage direct current discharge through a coil of the CJ by the electrolytic capacitor, so that the CJ is driven to attract and maintain at low voltage direct current. The advantages are that: the circuit is simple, the performance is reliable, the price is low, the electricity is saved, the noise eliminating effect is good, the installation and the use are convenient, and the service life of the contact of the alternating current contactor can be prolonged.
Description
The utility model belongs to a kind of silencer energy-saving device that is used for A.C. contactor.
A.C. contactor CJ is a most widely used electromagnetic switch in the control panel, and the switch of this type in use has following defective: (1) coil consumed power is big; (2) operating noise is big, and vibration is big, and electromagnetic interference is serious; (3) coil easy burn-out, easily ablate in the contact; (4) district work of spread of voltage is unreliable.The silencing means that a kind of A.C. contactor CJ was arranged on the market in recent years, it is after A.C. contactor CJ adhesive, eliminates noise by mechanical self-latching, but that this device installs is not too convenient, and price is also higher, so do not apply.
The purpose of this utility model provides a kind of CJ silencer energy-saving device by simple circuit control, and this device price is low, effective, dependable performance.
Schematic diagram of the present utility model as shown in drawings, its key is: it is mainly by diode D
1, D
2, D
3Form a voltage doubling rectifing circuit.Its principle is to pass through capacitor C
1Alternating current by the voltage doubling rectifing circuit voltage multiplying rectifier after, be added to electrolytic capacitor C
2On, C
2The direct voltage at two ends rises to two times of supply voltage peak value very soon.If at this moment press button AN
1(also can control automatically) by relay, capacitor C
2The direct voltage at two ends makes the rapid adhesive of CJ by the coil discharge of A.C. contactor CJ.Because capacitor C
1Limited the electric current in the circuit, C
2Discharge back voltage reduces gradually, when being reduced to 6-40V, the electric current in the CJ coil with by capacitor C
1Electric current reached balance, voltage keeps this numerical value no longer to descend, to safeguard the attracting state of A.C. contactor CJ.In fact, above-mentioned attracting process is very short, is about 0.2-0.5 second.As pressing AN again
2Button (also can control automatically) by relay, the coil blackout of A.C. contactor CJ, the contact disconnects and quits work.After the coil of CJ disconnects, capacitor C at this moment
2The very fast high pressure conditions that is again in two ends is to wait for starting next time.
The utility model can be made a little box structure, is installed on the A.C. contactor, and two leads connect the coil of A.C. contactor CJ by control circuit, and two leads connect alternating-current power supply.
Capacitor C of the present utility model
1With 1.5-4.7 μ F/600V, capacitor C
2The above electrochemical capacitor series connection of available two withstand voltage 450V is used.Diode D
1, D
2, D
3Adopt 1N4007.
The utility model has the advantages that: can make A.C. contactor CJ quick pick-up under the high voltage direct current state, and under the low-voltage direct state, keep, but saves energy 60-90%; Owing under dc low-voltage, safeguard, so eliminated operating noise, vibration and the electromagnetic radiation of CJ, expanded operating voltage range, and can protect the coil of CJ not burnt out; Because quick pick-up, the spark that the contact produces when having reduced adhesive has prolonged useful life of contact; Circuit is simple, easy for installation, and not power consumption of circuit itself need not changed any structure of A.C. contactor.The utility model also can be used for daylight lamp circuit in addition, can save ballast and starter, and has advantages such as quick startup, economize on electricity, noiselessness.
Description of drawings:
The circuit theory diagrams that the utility model of accompanying drawing cooperates with A.C. contactor
Claims (1)
- A kind of A.C. contactor CJ energy-saving muffler is characterized in that: by diode D 1, D 2, D 3Form a voltage doubling rectifing circuit, electrochemical capacitor C 2Connect both ends of power, the coil of A.C. contactor CJ is connected in series in the circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93211826 CN2155067Y (en) | 1993-04-26 | 1993-04-26 | Energy-saving CT silencer for AC contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93211826 CN2155067Y (en) | 1993-04-26 | 1993-04-26 | Energy-saving CT silencer for AC contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2155067Y true CN2155067Y (en) | 1994-02-02 |
Family
ID=33793320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93211826 Expired - Fee Related CN2155067Y (en) | 1993-04-26 | 1993-04-26 | Energy-saving CT silencer for AC contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2155067Y (en) |
-
1993
- 1993-04-26 CN CN 93211826 patent/CN2155067Y/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 |