CN2254234Y - Soundless running power economizer - Google Patents
Soundless running power economizer Download PDFInfo
- Publication number
- CN2254234Y CN2254234Y CN 95232774 CN95232774U CN2254234Y CN 2254234 Y CN2254234 Y CN 2254234Y CN 95232774 CN95232774 CN 95232774 CN 95232774 U CN95232774 U CN 95232774U CN 2254234 Y CN2254234 Y CN 2254234Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- electricity
- saving appliance
- contactor
- power supply
- 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
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Abstract
The utility model relates to a soundless running power economizer matched with an AC contactor, which mainly comprises a DC starting circuit, a DC holding power supply circuit and a current limiting step-down capacitor, wherein, the DC holding power supply is provided with a bridge full wave rectification circuit which can improve a soundless running effect of the AC contactor and the utilization rate of electrical energy. The utility model is characterized in that electronic components are arranged on a printed wiring plug board, which enables maintenance to be convenient by replacing the plug board to recover work when the utility model has a breakdown.
Description
The utility model is a kind of electricity-saving appliance of controlling the ac contactor silent operation.
Mainly contain relevant with the utility model at present utilizes the electricity-saving appliance of the step-down of capacitor current limliting, half-wave DC starting to exchange the electricity-saving appliance of starting, DC operation with employing.The former is utilization and the diode continuousing flow work that is connected in the ac contactor coil two ends, and what just adopt is that halfwave rectifier, pulse DC supply circuit are inhaled the secret service work.Its silent running effect is relatively poor, utilization rate of electrical is lower, and particularly its starting circuit is subjected to its structural limitations, can produce the multiplication of voltage direct current when DC start in circuit, cause starting voltage height, electric current big, this safe operation to circuit element and contactor coil is totally unfavorable; The latter has saved the DC start circuit, and the electricity-saving appliance electric elements are reduced, and circuit is simpler, but must connect a line on starting button to make troubles to installation to electricity-saving appliance more, also can cause starting failure because of misoperation sometimes.In addition, all there is the problem that wastes time and energy in existing various electricity-saving appliances when maintenance.Promptly when electricity-saving appliance damages, this electricity-saving appliance integral body must be pulled down, change standby electricity-saving appliance again.It connects contact head and connects with contactor, starting button because electricity-saving appliance is installed the back, and one tears one open and pacifies very inconveniently when more renewing electricity-saving appliance, also can influence equipment work because of lacking standby sometimes.
In view of the foregoing, it is higher, reliable and be convenient to the silent running electricity-saving appliance of Maintenance and Repair that the purpose of this utility model provides a kind of utilization rate of electrical.
The purpose of this utility model is achieved in that it comprises DC start circuit, direct current sticking power supply circuits and current limliting decompression capacitor, it is characterized in that: direct current sticking power supply circuits adopt full-wave bridge rectifier circuit, the input of this full-wave rectifying circuit links to each other with AC power through current limliting decompression capacitor, contactor normally opened contact, and its output links to each other with the contactor coil two ends; Its output of rectifier diode in the DC start circuit that starting button links to each other with AC power links to each other with the output of above-mentioned full-wave rectifying circuit; Electronic component in DC start circuit and the direct current sticking power supply circuits and current limliting decompression capacitor place on the bar printing circuit plate, this plate with place the plug socket that is connected with binding post in the housing to plug.
In order to ensure damage at the electricity-saving appliance electronic component and when not having standby board plug and changing equipment still can normally move, and the plug socket that plugs of above-mentioned plugboard and electricity-saving appliance binding post between also can be provided with the change over switch of control contactor ac/dc operation.Promptly when electronic component on the plate damages, need not to pull down each wiring of electricity-saving appliance, contactor can be transferred to the ac operation operating state by change over switch.
The utility model has the advantages that: do not have the multiplication of voltage direct current during DC start and produce, utilizing full-wave rectifying circuit to power for the work of contactor sticking can corresponding raising contactor silent running effect and utilization rate of electrical.Particularly when electricity-saving appliance breaks down, change and plug standby circuit plate and can in time resume operation, bring great convenience to maintenance.
Below in conjunction with accompanying drawing the utility model is explained.
Fig. 1 is the utility model circuit theory diagrams.
Fig. 2 is the utility model external structure schematic diagram.
Fig. 3 is the utility model internal structure schematic diagram.
By accompanying drawing as can be known, the utility model mainly comprises DC start circuit that is made of halfwave rectifier diode D1 and full-wave bridge rectifier circuit and the current limliting decompression capacitor C that is made of diode D2-D5.Resistance R among the figure is that electric capacity leaks the discharge resistance, K is contactor ac/dc operation change over switch 3, halfwave rectifier diode D1 in the DC start circuit and the diode D2-D5 in the full-wave rectifying circuit and capacitor C, resistance R place on the bar printing circuit plate 6, plug socket 5 in this plate and the housing 1 plugs, a-e among Fig. 1 is the socket connection point, (1)-(5) for being located at the electricity-saving appliance binding post 2 in housing 1 outside, the output of halfwave rectifier diode D1 links to each other with the output (positive pole) of full-wave rectifying circuit.During starting, press starting button QA starting current and constitute the loop through diode D1, contactor coil, diode D5, fuse RD and power supply, make contactor CJ adhesive, starting process is finished.Because the contactor adhesive, its normally opened contact is connected, and full-wave rectifying circuit work provides the DC power supply of sticking work for contactor coil.When electricity-saving appliance breaks down, raise housing 1 bottom side cover plate 4 and the printed wire plate can be dialled down, change standby board plug.When no standby board plug, contactor can be in the alternate current operation state by change over switch 3 (K).
Claims (2)
1, a kind of silent running electricity-saving appliance, it comprises DC start circuit, direct current sticking power supply circuits and current limliting decompression capacitor, it is characterized in that: direct current sticking power supply circuits adopt full-wave bridge rectifier circuit, the input of this full-wave rectifying circuit links to each other with AC power through current limliting decompression capacitor, contactor normally opened contact, and its output links to each other with the contactor coil two ends; Its output of rectifier diode in the DC start circuit that starting button links to each other with AC power links to each other with the output of above-mentioned full-wave rectifying circuit; Electronic component in DC start circuit and the direct current sticking power supply circuits and current limliting decompression capacitor place on the bar printing circuit plate, this plate with place the plug socket that is connected with binding post in the housing to plug.
2, silent running electricity-saving appliance according to claim 1 is characterized in that: can be provided with also between plug socket that plugs with electricity-saving appliance circuit socket plate and electricity-saving appliance binding post that control contactor exchanges or the change over switch of DC operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95232774 CN2254234Y (en) | 1995-11-23 | 1995-11-23 | Soundless running power economizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95232774 CN2254234Y (en) | 1995-11-23 | 1995-11-23 | Soundless running power economizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2254234Y true CN2254234Y (en) | 1997-05-14 |
Family
ID=33877054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95232774 Expired - Fee Related CN2254234Y (en) | 1995-11-23 | 1995-11-23 | Soundless running power economizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2254234Y (en) |
-
1995
- 1995-11-23 CN CN 95232774 patent/CN2254234Y/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 |