CN2332060Y - Soundproofing energy-saving A. C. contactor - Google Patents
Soundproofing energy-saving A. C. contactor Download PDFInfo
- Publication number
- CN2332060Y CN2332060Y CN 97215432 CN97215432U CN2332060Y CN 2332060 Y CN2332060 Y CN 2332060Y CN 97215432 CN97215432 CN 97215432 CN 97215432 U CN97215432 U CN 97215432U CN 2332060 Y CN2332060 Y CN 2332060Y
- Authority
- CN
- China
- Prior art keywords
- coil
- contactor
- energy
- utility
- normally closed
- 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 discloses a soundproofing energy-saving AC contactor with a fast breaking capacity. The utility model comprises a frame, an iron core, an armature, an electromagnetic coil, a limiting resistor R, a contact, a wire connection pile head and a rectifier. The electromagnetic coil is a combination series coil and combines with the limiting resistor R into a retention working loop, wherein, a coil L3 and the limiting resistor R are connected in parallel with an auxiliary normally closed contact; a starting work loop is composed of a series connection of the auxiliary normally closed contact and coils L2, L1; a freewheeling diode is arranged on the coil L1 to achieve the effect of quick start and quick breaking. The utility model has simple structure, high operational reliability and broad range of application, which is used for occasions requiring fast breaking.
Description
The utility model belongs to electric switch.
A.C. contactor is used for remote electronic control connection and breaking operation, has decompression, under-voltage protection effect concurrently, and purposes is very wide.Common A.C. contactor mainly is made up of contact, arc-control device, electromagnet mechanism, realizes the closure and the disjunction of contact with the action of button control electromagnet mechanism, and its response time is shorter, but energy consumption is big, the noise height; The energy-saving silencing contactor of DC operation, dc coil adhesive and sticking are adopted in its contact, have received and have eliminated the noise and energy-conservation effect, but the disjunction recovery time of most product technologies is long, reaches hundreds of milliseconds, thereby has reduced functional reliability, influence control precision, limited its range of application.
The purpose of this utility model is to utilize the energy-saving silencing A.C. contactor that provides a kind of quick disjunction to use the mode of local coil afterflow to realize quick disjunction, and don't influence traditional structure.
Energy-saving silencing A.C. contactor of the present utility model, comprise support, iron core, armature, electromagnetism wire ring, current-limiting resistance, contact, wiring pile crown and rectifying device, it is characterized in that said solenoid is the composite type series coil, wherein one is starting, the shared coil of sticking, and another is the sticking interpole coil; Interpole coil and current-limiting resistance series connection, in parallel with normally closed interlock then; Draw the tap that coil sections is arranged on the coil rising to employ, connect fly-wheel diode on this coil.
Of the present utility model simple in structure, its local coil afterflow the time that has reduced from afterflow to actual disjunction is set, obtained the effect of rapid release.
Embodiment and description of drawings are as follows:
Fig. 1 is the expansion circuit theory diagrams of A.C. contactor.
Fig. 2 is the outline drawing of A.C. contactor.
Referring to accompanying drawing.Shown in Figure 1, this circuit theory legend is the power supply of 380V three-phase alternating current, is connected to control contact CJ between motor D and knife switch DK, and the interlock of CJ contact comprises three normally open contacts and a normally closed interlock.Pick out the control power supply lead wire from any two phase lines, mid-span has stop button TA and starting button QA, again by VD
1-4Make bridge path rectification, its output termination solenoid load.Solenoid is by L
1, L
2, L
3Three sections series connection, a series connection current-limiting resistance R (also being economy resistance) in the path; Normally closed interlock and R, L
3Parallel connection forms direct path, makes L
1+ L
2Become the solenoid that starts to work.Starting back normally closed interlock disconnects L when entering the sticking operating state
3Be automatically connected into, promptly by L
1+ L
2+ L
3Form the sticking actuating coil, constitute the work loop, holding current is reduced compared with streaming current with current-limiting resistance R; Again at L
1Two ends connect a fly-wheel diode VD
5, the afterflow path of formation local coil, when normally-closed contact disconnected, electric current discharged by fly-wheel diode, caused L
2, L
3The induction effect of coil makes holding current reduce to realize quick disjunction, and constant L/R continued to discharge in the loop between branch was had no progeny on time.Because the release current requirement is bigger during beginning, L
1Resistance by the less suitable value of principle.
Rated current is the energy-saving silencing A.C. contactor of 250A, gets L
1Be 140 circles, φ 0.27; L
2Be 1950 circle φ 0.27; L
3Be 2000 circles, φ 0.16, and R is 10K, actual measurement response break-time≤50 millisecond.
Figure 2 shows that the outline drawing of energy-saving silencing contactor, be close with common A.C. contactor profile.Fig. 2-I is the profile of CJ10 Series AC Contactor.Fig. 2-II is the profile of CJ Series AC Contactor.
Claims (1)
1, the energy-saving silencing A.C. contactor used of a kind of quick disjunction, comprise support, iron core, armature, solenoid, current-limiting resistance R, contact CJ, wiring pile crown and rectifying device, it is characterized in that said solenoid is the composite type series coil, wherein one is starting, the shared coil of sticking, and another is sticking interpole coil L
3Interpole coil L
3With current-limiting resistance R series connection, in parallel with normally closed interlock then, employ coil (L rising
1+ L
2) on draw some coil L
1Tap, this coil L
1Last connection fly-wheel diode VD
5
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97215432 CN2332060Y (en) | 1997-04-24 | 1997-04-24 | Soundproofing energy-saving A. C. contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97215432 CN2332060Y (en) | 1997-04-24 | 1997-04-24 | Soundproofing energy-saving A. C. contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2332060Y true CN2332060Y (en) | 1999-08-04 |
Family
ID=33932594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97215432 Expired - Fee Related CN2332060Y (en) | 1997-04-24 | 1997-04-24 | Soundproofing energy-saving A. C. contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2332060Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101868842B (en) * | 2007-11-16 | 2013-06-05 | 李持国际有限公司 | System and method for protecting a coil structure in a controlled switch |
-
1997
- 1997-04-24 CN CN 97215432 patent/CN2332060Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101868842B (en) * | 2007-11-16 | 2013-06-05 | 李持国际有限公司 | System and method for protecting a coil structure in a controlled switch |
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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 |