CN2465311Y - AC/dc arresting silence energy-saving contact - Google Patents
AC/dc arresting silence energy-saving contact Download PDFInfo
- Publication number
- CN2465311Y CN2465311Y CN 99230237 CN99230237U CN2465311Y CN 2465311 Y CN2465311 Y CN 2465311Y CN 99230237 CN99230237 CN 99230237 CN 99230237 U CN99230237 U CN 99230237U CN 2465311 Y CN2465311 Y CN 2465311Y
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- Prior art keywords
- contactor
- saving
- sound
- electricity
- deadening
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Abstract
The utility model discloses an AC/DC arresting silence energy-saving contact, which is characterized in that on the basis of the original ordinary AC contactor, a silence energy-saving circuit is added, and transfer switches are arranged among the coil of the AC contactor, the silence energy-saving circuit, and the AC power. The utility model has the advantages that the AC/DC arresting silence energy-saving contact can be operated in the state of AC as well as DC, when in the state of DC, the lightning protection performance is good, the noise is low, the electricity is saved, and the structure of the original ordinary AC contactor is not changed.
Description
The utility model relates to the device in the power supply technique field, is a kind of A.C. contactor of AC/DC, specifically, is a kind of subsidiary A.C. contactor that the sound-deadening electricity-saving circuit is arranged.
A.C. contactor is very common electric device, uses very extensive.Existing common A.C. contactor, operating noise is big, power consumption is big, and poor reliability is fragile, and can only move under exchange status usually, and range of application is subjected to certain limitation.And do not have lightning protection function.
The purpose of this utility model provides a kind ofly both can be moved under exchange status, also can dc state operation and lightning protection properties is good, noise is little, the alternating current-direct current lighning proof type sound-deadening electricity-saving A.C. contactor of economize on electricity down.
Technical solution of the present utility model is: a kind of alternating current-direct current lighning proof type sound-deadening electricity-saving A.C. contactor, adopted and be different from the prior art constructions design: on the basis of former common A.C. contactor, increase the circuit of a sound-deadening electricity-saving, between the coil of A.C. contactor and sound-deadening electricity-saving circuit, reach and AC power between be provided with change over switch.Has the dual power supply work functions.
Be provided with a step-down transformer in the sound-deadening electricity-saving circuit described in the utility model, transformer output is succeeded electric apparatus coil through rectifier diode, the relay switch contact is connected AC power, the AC power line of connecting connects ac contactor coil through diode, and transformer secondary output also connects ac contactor coil through rectifier diode.Change over switch adopts triac device.Diode used in the circuit all adopts the phase string mode.In the sound-deadening electricity-saving circuit, be provided with A.C. contactor adhesive and disjunction instant high-voltage attraction circuit.A.C. contactor adhesive and disjunction instant high-voltage attraction circuit adopt piezo-resistance.Adopted the two point relay in the sound-deadening electricity-saving circuit, with the access of control phase line and zero line phase line with do not insert.Certainly, also can adopt other suitable specific constructive form.
The utility model has the advantages that: both can under exchange status, move, also can dc state operation down, and under dc state during operation lightning protection properties good.Little, the economize on electricity of noise does not change former plain edition A.C. contactor structure.Can insert high voltage in moment, to increase the initial adhesive ability of contactor.Adopted isolating transformer, made with power supply phase line and zero line to separate fully, electronic circuit only has the loop of one's own with ac contactor coil.
Below in conjunction with drawings and Examples the utility model is further described:
Accompanying drawing is the electrical schematic diagram of a kind of alternating current-direct current lighning proof type sound-deadening electricity-saving A.C. contactor of the present utility model.
Accompanying drawing has been described an embodiment of the present utility model.Comprise components and parts such as transformer B, common A.C. contactor CJ, relay J, K switch, contact A1, A2, diode D1, D2, D3, D4, D5, D6, D7, resistance R 1, R2, capacitor C 1, C2 in the drawings, J1, J2 are the make and break contact of relay J.
The operation principle of the foregoing description is: when K switch was beaten in the drawings the right, the direct input ac power of contactor coil was in the ac operation state.When K switch was beaten in the drawings the left side, AC power joined the elementary of transformer B, secondary output one low-voltage.Its voltage is sent into relay J by diode D7 rectification, by capacitor C 1 charging, because capacitor C 1 does not have voltage when initial, thereby is equivalent to short-circuit condition, makes the relay J adhesive.J1, J2 connect during the relay J adhesive, two phase lines of power supply when operation (380V) or with phase line of power and zero line (during the 220V operation) connection, make diode D1, D2 input that high pressure be arranged, and because the other end also inserts and can become the loop, so give high voltage of contactor coil CJ, make contactor produce very big moment, adhesive.Diode D3, D4 form halfwave rectifier, and to supply with the voltage that A.C. contactor CJ keeps adhesive, diode D5, D6 are fly-wheel diode.Resistance R 2 is a piezo-resistance, to absorb the high voltage of A.C. contactor CJ in adhesive and disjunction moment generation.When voltage was charged to a certain degree on the capacitor C 1, charging current reduced, and made the relay J electric current not reach holding current and discharged.Withdraw from dc high voltage, A.C. contactor CJ is supplied with by low-voltage and keep adhesive, capacitor C 2 is a filter capacitor, and resistance R 1 is a discharge resistance.When input A1, A2 AC-less power, the voltage of capacitor C 1 falls the tele-release of capacitor C 1 by resistance R 1 discharge, and relay J can reliable adhesive when starting in order to next time.The normally closed contact of J1, the also available A.C. contactor of J2 contact itself replaces, or adopts other travel switches to replace, but unreliable in the practicality, and also need adjust.Transformer B also can adopt two miniature transformer serial connections to use, and is to reduce volume, convenient for assembly.The design also can cooperate with earth leakage protective device, forms sound-deadening electricity-saving type earth leakage protective device.Owing to adopted above-mentioned change-over circuit, make contactor can be in the state of flexible use, increased operational reliability.Reach sound-deadening electricity-saving, lightning protection and the reliable purpose of using.The foregoing description is when starting working, and moment is inserted high voltage, to increase the initial adhesive ability of contactor, makes its adhesive.Used diode in the circuit all adopts the phase string mode, to improve the overvoltage ability.The sound-deadening electricity-saving function is in service being in, and has increased piezo-resistance in the electronic loop, to absorb the high voltage that ac contactor coil was produced.The sound-deadening electricity-saving circuit has adopted isolating transformer, and power supply phase line and zero line are separated fully, and electronic circuit only has the loop of one's own with ac contactor coil.
Claims (8)
1, a kind of alternating current-direct current lighning proof type sound-deadening electricity-saving A.C. contactor, it is characterized in that: a common A.C. contactor is arranged, and A.C. contactor is connected with change over switch, and change over switch also is connected with a sound-deadening electricity-saving circuit.
2, alternating current-direct current lighning proof type sound-deadening electricity-saving A.C. contactor according to claim 1, it is characterized in that: be provided with a step-down transformer in the sound-deadening electricity-saving circuit, transformer output is succeeded electric apparatus coil through rectifier diode, the relay switch contact is connected AC power, the AC power line of connecting connects ac contactor coil through diode, and transformer secondary output also connects ac contactor coil through rectifier diode.
3, alternating current-direct current lighning proof type sound-deadening electricity-saving A.C. contactor according to claim 1 and 2 is characterized in that: change over switch adopts triac device.
4, alternating current-direct current lighning proof type sound-deadening electricity-saving A.C. contactor according to claim 1 and 2, it is characterized in that: diode used in the circuit all adopts the phase string mode.
5, alternating current-direct current lighning proof type sound-deadening electricity-saving A.C. contactor according to claim 1 and 2 is characterized in that: in the sound-deadening electricity-saving circuit, be provided with A.C. contactor adhesive and disjunction instantaneous pressure attraction circuit.
6, alternating current-direct current lighning proof type sound-deadening electricity-saving A.C. contactor according to claim 5 is characterized in that: A.C. contactor adhesive and disjunction instantaneous pressure attraction circuit, adopt piezo-resistance.
7, alternating current-direct current lighning proof type sound-deadening electricity-saving A.C. contactor according to claim 1 and 2 is characterized in that: adopted the two point relay in the sound-deadening electricity-saving circuit.
8, alternating current-direct current lighning proof type sound-deadening electricity-saving A.C. contactor according to claim 2 is characterized in that: relay replaces with the normally closed contact or the travel switch of A.C. contactor itself.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99230237 CN2465311Y (en) | 1999-12-06 | 1999-12-06 | AC/dc arresting silence energy-saving contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99230237 CN2465311Y (en) | 1999-12-06 | 1999-12-06 | AC/dc arresting silence energy-saving contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2465311Y true CN2465311Y (en) | 2001-12-12 |
Family
ID=34019361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99230237 Expired - Fee Related CN2465311Y (en) | 1999-12-06 | 1999-12-06 | AC/dc arresting silence energy-saving contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2465311Y (en) |
-
1999
- 1999-12-06 CN CN 99230237 patent/CN2465311Y/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 |