CN2701057Y - Combined type intelligent AC contactor - Google Patents
Combined type intelligent AC contactor Download PDFInfo
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- CN2701057Y CN2701057Y CN 200420064928 CN200420064928U CN2701057Y CN 2701057 Y CN2701057 Y CN 2701057Y CN 200420064928 CN200420064928 CN 200420064928 CN 200420064928 U CN200420064928 U CN 200420064928U CN 2701057 Y CN2701057 Y CN 2701057Y
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Abstract
The utility model relates to a combined type intelligent alternating current contactor (AC contactor). A movable contact and a movable contact bridge of the combined type intelligent AC contactor are arranged and fixed on a contact bracket; the contact bracket is arranged on a movable iron core. The contact device of the first AC contactor only has one phase of contact to switch on and switch off one phase of current only. The contact device of the second AC contactor has two phases of contacts to switch on and switch off two phases of current respectively. A current sensor is sheathed on a stationary contact bridge of the contact device of the first AC contactor. The device can enable the contact of the contact device of the first AC contactor to open when the first phase of current accesses zero-cross; a single-chip microcomputer control device switches off the coil current of an electromagnetic mechanism of the second AC contactor at the appropriate time to enable the contact of the contact device of the second AC contactor to open after the contact of the contact device of the first AC contactor has been opened nearly 5ms to ensure that the third phase of contact is opened when the third phase of current accesses zero-cross. The utility model has more accurate control, less electric arc energy when switching off, realization of switching off with fewer arcs or no arc, stable and reliable operation and high electrical durability.
Description
Technical field:
The utility model relates to a kind of Combined Type Intelligent AC Contactor.
Background technology:
Discuss intelligent AC contactor is existing in the document at present, Xu Zhihong, Zhang Peiming are published in " intelligent AC contactor Zero current disjunction control technology " literary composition and the utility model patent " a kind of intelligent AC contactor " (patent No. is ZL00214192.2) of " electrician's electric energy new technology " the 4th phase in 2002 and have introduced the nonsynchronous A.C. contactor scheme of employing microprocessor control three-phase contact, have realized that three-phase contact electric current is all in the zero cross near disjunction.But this scheme realizes that from structure various Capacity AC Contactor one phase contacts and other nonsynchronous time difference of two-phase contact disjunction all have certain requirement near 5ms to design, technology, experiment.
The utility model content:
The purpose of this utility model just provides and a kind ofly can realize a phase contact and other nonsynchronous time difference of two-phase contact disjunction easily and accurately near 5ms, guarantees that three-phase contact electric current is all in the Combined Type Intelligent AC Contactor of zero cross near disjunction.
The purpose of this utility model is achieved in that it comprises monolithic processor control device, first A.C. contactor electromagnetic mechanism, first A.C. contactor contact apparatus, second A.C. contactor electromagnetic mechanism, second A.C. contactor contact apparatus.
Moving contact and movable contact bridge are fixed on the contact supporting, contact supporting is installed on the moving iron core, first A.C. contactor contact apparatus has only a phase contact, only connect disjunction one phase current, second A.C. contactor contact apparatus has the two-phase contact can connect the disjunction two-phase current respectively, current sensor is enclosed within on the stationary contact bridge of first A.C. contactor contact apparatus, when disjunction, monolithic processor control device is sampled to current sensor signal, and carve in due course and cut off first A.C. contactor electromagnetic mechanism coil current, the contact that makes first A.C. contactor contact apparatus is opened during near zero passage at first phase current, monolithic processor control device is carved in due course and is cut off second A.C. contactor electromagnetic mechanism coil current, the contact that makes second A.C. contactor contact apparatus is opened about the 5ms of back at the contact of first A.C. contactor contact apparatus and is opened, and guarantees that the three-phase contact opens during near zero passage at three-phase current exactly.
It is more accurate that the utility model is compared with prior art controlled, and arc energy still less can realize that few arc or non-arc breaking are disconnected during disjunction, has reliable and stable work, characteristics such as electric life height.
Description of drawings:
Fig. 1 is a structural representation block diagram of the present utility model
Fig. 2 is that the circuit part of monolithic processor control device of the present utility model connects schematic block diagram
Embodiment:
Among Fig. 1, Fig. 2:
A is a monolithic processor control device; B1 is first A.C. contactor electromagnetic mechanism; C1 is first A.C. contactor contact apparatus; B2 is second A.C. contactor electromagnetic mechanism; C2 is second A.C. contactor contact apparatus; Z is a rectification circuit; Z1 is first A.C. contactor master element; Z2 is first A.C. contactor retentive control element; Z3 is second A.C. contactor retentive control element; X1 is first ac contactor coil; X2 is second ac contactor coil; Y1 is the step-down control circuit; D is a single chip computer device; E1 is a control circuit; E2 is a control circuit; F is a current sensor; 1 is certain phase movable contact bridge; 2 is moving contact; 3 is contact supporting; 4 is fixed contact; 5 is the stationary contact bridge; 6 are moving iron core; 7 is static iron core; 8 is coil.
From Fig. 1, Fig. 2 as can be known, monolithic processor control device A first A.C. contactor electromagnetic mechanism B1 of control and second A.C. contactor electromagnetic mechanism B2, the circuit part of monolithic processor control device A, its annexation is that power supply Y is connected to the AC side of rectification circuit Z and the input of step-down control circuit Y1, the DC side of Z is connected to first A.C. contactor master element Z1, first A.C. contactor master element Z1 output is connected to first ac contactor coil X1 and second ac contactor coil X2, the output of Y1 is connected to first ac contactor coil X1 through first A.C. contactor retentive control element Z2, the output of Y1 is connected to second ac contactor coil X2 through second A.C. contactor retentive control element Z3, the DC side other end of Z respectively with the X1 other end, the X2 other end, another output of Y1 joins, the input of the delivery outlet 1 connection control circuit E1 of single chip computer device D, the output of E1 is connected to the control end of Z1, the input of second delivery outlet 2 connection control circuit E2 of single chip computer device D, the output of E2 is connected to the control end of Z2, another input of the 3rd the delivery outlet 3 connection control circuit E2 of single chip computer device D, another output of E2 is connected to the control end of Z3, and the output of current sensor F is connected to the A/D mouth of D.
As can be seen from Figure 1, movable contact bridge 1 is fixed on the contact supporting 3 with moving contact 2, contact supporting 3 is installed on the moving iron core 6, first A.C. contactor contact apparatus C1 has only a phase contact, only connect disjunction one phase current, second A.C. contactor contact apparatus C2 has the two-phase contact, can connect the disjunction two-phase current respectively, current sensor F is enclosed within on the stationary contact bridge 5 of first A.C. contactor contact apparatus, when disjunction, monolithic processor control device A samples to current sensor F signal, and carve in due course and cut off first A.C. contactor electromagnetic mechanism B1 coil current, the contact that makes first A.C. contactor contact apparatus C1 is opened during near zero passage at first phase current, monolithic processor control device A carves in due course and cuts off second A.C. contactor electromagnetic mechanism B2 coil current, the contact that makes second A.C. contactor contact apparatus C2 is opened about the 5ms of back at the contact of first A.C. contactor contact apparatus and is opened, and guarantees that the three-phase contact opens during near zero passage at three-phase current exactly.
Claims (1)
1. Combined Type Intelligent AC Contactor, it comprises monolithic processor control device (A), A.C. contactor electromagnetic mechanism, A.C. contactor contact apparatus, it is characterized in that:
(1) described A.C. contactor comprises: first A.C. contactor electromagnetic mechanism (B1), first A.C. contactor contact apparatus (C1), second A.C. contactor electromagnetic mechanism (B2), second A.C. contactor contact apparatus (C2);
Movable contact bridge (1) is fixed on the contact supporting (3) with moving contact (2), contact supporting (3) is installed on the moving iron core (6), first A.C. contactor contact apparatus (C1) has only a phase contact, only connect disjunction one phase current, second A.C. contactor contact apparatus (C2) has the two-phase contact, can connect the disjunction two-phase current respectively, current sensor (F) is enclosed within on the stationary contact bridge (5) of first A.C. contactor contact apparatus
(2) circuit part of monolithic processor control device (A), its annexation is that power supply (Y) is connected to the AC side of rectification circuit (Z) and the input of step-down control circuit (Y1), (Z) DC side is connected to first A.C. contactor master element (Z1), first A.C. contactor master element (Z1) output is connected to first ac contactor coil (X1) and second ac contactor coil (X2), (Y1) output is connected to first ac contactor coil (X1) through first A.C. contactor retentive control element (Z2), (Y1) output is connected to second ac contactor coil (X2) through second A.C. contactor retentive control element (Z3), (Z) the DC side other end respectively with (X1) other end, (X2) other end, (Y1) another output joins, the input of delivery outlet 1 connection control circuit (E1) of single chip computer device (D), (E1) output is connected to the control end of (Z1), an input of second delivery outlet 2 connection control circuit (E2) of single chip computer device (D), (E2) a output is connected to the control end of (Z2), another input of the 3rd delivery outlet 3 connection control circuits (E2) of single chip computer device (D), (E2) another output is connected to the control end of (Z3), and the output of current sensor (F) is connected to the A/D mouth of (D).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420064928 CN2701057Y (en) | 2004-06-11 | 2004-06-11 | Combined type intelligent AC contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420064928 CN2701057Y (en) | 2004-06-11 | 2004-06-11 | Combined type intelligent AC contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2701057Y true CN2701057Y (en) | 2005-05-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420064928 Expired - Fee Related CN2701057Y (en) | 2004-06-11 | 2004-06-11 | Combined type intelligent AC contactor |
Country Status (1)
| Country | Link |
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| CN (1) | CN2701057Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100459012C (en) * | 2005-09-27 | 2009-02-04 | 福州大学 | Combined type intelligent alternating-current control and protector |
| CN101414530B (en) * | 2008-11-25 | 2010-12-22 | 福州大学 | Electric appliance rapid disjunction motion mechanism based on main circuit current excitation |
| CN104466974A (en) * | 2014-10-13 | 2015-03-25 | 福州大学 | Combined type synchronous switch based on split-phase control technology |
| US9722513B2 (en) | 2014-11-06 | 2017-08-01 | Rockwell Automation Technologies, Inc. | Torque-based stepwise motor starting |
| US9726726B2 (en) | 2014-11-06 | 2017-08-08 | Rockwell Automation Technologies, Inc. | Single-pole, single current path switching system and method |
| US9806642B2 (en) | 2014-11-06 | 2017-10-31 | Rockwell Automation Technologies, Inc. | Modular multiple single-pole electromagnetic switching system and method |
| US9806641B2 (en) | 2014-11-06 | 2017-10-31 | Rockwell Automation Technologies, Inc. | Detection of electric motor short circuits |
| US10074497B2 (en) | 2014-11-06 | 2018-09-11 | Rockwell Automation Technologies, Inc. | Operator coil parameter based electromagnetic switching |
| US10141143B2 (en) | 2014-11-06 | 2018-11-27 | Rockwell Automation Technologies, Inc. | Wear-balanced electromagnetic motor control switching |
| US10361051B2 (en) | 2014-11-06 | 2019-07-23 | Rockwell Automation Technologies, Inc. | Single pole, single current path switching system and method |
-
2004
- 2004-06-11 CN CN 200420064928 patent/CN2701057Y/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100459012C (en) * | 2005-09-27 | 2009-02-04 | 福州大学 | Combined type intelligent alternating-current control and protector |
| CN101414530B (en) * | 2008-11-25 | 2010-12-22 | 福州大学 | Electric appliance rapid disjunction motion mechanism based on main circuit current excitation |
| CN104466974A (en) * | 2014-10-13 | 2015-03-25 | 福州大学 | Combined type synchronous switch based on split-phase control technology |
| CN104466974B (en) * | 2014-10-13 | 2016-06-29 | 福州大学 | Combined synchronous based on individual-phase control technology switchs |
| US9722513B2 (en) | 2014-11-06 | 2017-08-01 | Rockwell Automation Technologies, Inc. | Torque-based stepwise motor starting |
| US9726726B2 (en) | 2014-11-06 | 2017-08-08 | Rockwell Automation Technologies, Inc. | Single-pole, single current path switching system and method |
| US9746521B2 (en) | 2014-11-06 | 2017-08-29 | Rockwell Automation Technologies, Inc. | 6-pole based wye-delta motor starting system and method |
| US9766291B2 (en) | 2014-11-06 | 2017-09-19 | Rockwell Automation Technologies Inc. | Cleaning and motor heating electromagnetic motor control switching |
| US9772381B2 (en) | 2014-11-06 | 2017-09-26 | Rockwell Automation Technologies, Inc. | Synchronized reapplication of power for driving an electric motor |
| US9806642B2 (en) | 2014-11-06 | 2017-10-31 | Rockwell Automation Technologies, Inc. | Modular multiple single-pole electromagnetic switching system and method |
| US9806641B2 (en) | 2014-11-06 | 2017-10-31 | Rockwell Automation Technologies, Inc. | Detection of electric motor short circuits |
| US10018676B2 (en) | 2014-11-06 | 2018-07-10 | Rockwell Automation Technologies, Inc. | Electromagnetic switch interlock system and method |
| US10074497B2 (en) | 2014-11-06 | 2018-09-11 | Rockwell Automation Technologies, Inc. | Operator coil parameter based electromagnetic switching |
| US10101393B2 (en) | 2014-11-06 | 2018-10-16 | Rockwell Automation Technologies, Inc. | Temperature-based electromagnetic switching |
| US10141143B2 (en) | 2014-11-06 | 2018-11-27 | Rockwell Automation Technologies, Inc. | Wear-balanced electromagnetic motor control switching |
| US10175298B2 (en) | 2014-11-06 | 2019-01-08 | Rockwell Automation Technologies, Inc. | Wellness monitoring of electromagnetic switching devices |
| US10361051B2 (en) | 2014-11-06 | 2019-07-23 | Rockwell Automation Technologies, Inc. | Single pole, single current path switching system and method |
| US10393809B2 (en) | 2014-11-06 | 2019-08-27 | Rockwell Automation Technologies, Inc. | Intelligent timed electromagnetic switching |
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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 |