CN201725738U - Noiseless electricity economizer of alternating-current contact - Google Patents
Noiseless electricity economizer of alternating-current contact Download PDFInfo
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- CN201725738U CN201725738U CN2010202410262U CN201020241026U CN201725738U CN 201725738 U CN201725738 U CN 201725738U CN 2010202410262 U CN2010202410262 U CN 2010202410262U CN 201020241026 U CN201020241026 U CN 201020241026U CN 201725738 U CN201725738 U CN 201725738U
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Abstract
The utility model relates to a noiseless electricity economizer of an alternating-current contact. One phase line L1 of a three-phase alternating-current power source is connected with a parallel input end of a normally open contact of an auxiliary starting switch SA and a normally closed contact of an AC contactor KM, a parallel output end of the normal open contact of the auxiliary starting switch SA and the normally closed contact of the AC contactor KM is connected with a coil of the AC contactor KM via a normally closed contact FR of a thermal relay, the coil of the AC contactor KM is connected with a stop button STP, the stop button STP is connected with a parallel input end of a start button ST and a normally open contact of the AC contactor KM, a parallel output end of the start button ST and the normally open contact of the AC contactor KM are connected with another phase line L3 of the three-phase alternating-current power source, a normally closed contact of the auxiliary starting switch SA is connected to a parallel output end of the normally open contact of the auxiliary starting switch SA and the normally closed contact of the AC contact KM, and the normally closed contact of the auxiliary starting switch SA is connected with a zero line N via the normally open contact of the AC contactor KM. Therefore, the noiseless electricity economizer has the advantages of reducing noise and saving electricity greatly.
Description
Technical field:
The utility model relates to a kind of employing coil and starts, and the mode of low pressure operation is eliminated noise and the tangible ac contactor silent electricity-saving appliance of power savings.
Background technology:
Capacity is in operation greater than the A.C. contactor of 100A, and to exist the armature adhesive unreliable, and the defective that noise is big is also wasted a large amount of electric energy simultaneously, and it is greatly inconvenient to come for the user in generation.The wiring routinely of CJT1-100 A.C. contactor, 380V needs about power consumption stream 0.45A; Long-term energising, coil burns easily.
Summary of the invention:
The purpose of this utility model is to overcome the deficiencies in the prior art and provides a kind of employing coil (380V) to start, and the mode of low pressure (220V) operation can be eliminated noise, and the tangible ac contactor silent electricity-saving appliance of power savings.
The purpose of this utility model is achieved in that
A kind of ac contactor silent electricity-saving appliance, it is characterized in that: a wherein phase line L1 of three-phase alternating-current supply connects the normally opened contact of startup auxiliary switch SA and the input in parallel of A.C. contactor KM normally-closed contact by insurance resistance FU1, the normally opened contact that starts auxiliary switch SA is connected with the coil of A.C. contactor KM by thermal relay normally closed contact FR with the output in parallel of A.C. contactor KM normally-closed contact, the coil of A.C. contactor KM is connected with stop button STP again, stop button STP is connected with the input in parallel of A.C. contactor KM normally opened contact with start button ST, the output in parallel of start button ST and A.C. contactor KM normally opened contact is connected with another phase line L3 of three-phase alternating-current supply by insurance resistance FU2, also be connected with the normally-closed contact that starts auxiliary switch SA on the output in parallel of the normally opened contact that starts auxiliary switch SA and A.C. contactor KM normally-closed contact, this normally-closed contact that starts auxiliary switch SA is again by A.C. contactor KM normally opened contact connection zero line N.
A.C. contactor comprise static gag bit, with the coil of the corresponding moving armature of static gag bit and A.C. contactor, be provided with the convex protrusion crosspiece in moving armature one side, regulate the convex protrusion crosspiece and prop up moving armature, the convex protrusion crosspiece is regulated the extended distance of static gag bit and moving armature.
The utlity model has and to eliminate noise, also can reach the advantage of obvious power savings.
Description of drawings:
Fig. 1 is the circuit catenation principle figure of ac contactor silent electricity-saving appliance of the present utility model.
Fig. 2 is the internal structure schematic diagram of ac contactor silent electricity-saving appliance of the present utility model.
Fig. 3 is the debugging electric diagram of ac contactor silent electricity-saving appliance of the present utility model.
Embodiment:
As Fig. 1,2, shown in 3, a wherein phase line L1 of three-phase alternating-current supply of the present utility model connects the normally opened contact of startup auxiliary switch SA and the input in parallel of A.C. contactor KM normally-closed contact by insurance resistance FU1, the normally opened contact that starts auxiliary switch SA is connected with the coil of A.C. contactor KM by thermal relay normally closed contact FR with the output in parallel of A.C. contactor KM normally-closed contact, the coil of A.C. contactor KM is connected with stop button STP again, stop button STP is connected with the input in parallel of A.C. contactor KM normally opened contact with start button ST, the output in parallel of start button ST and A.C. contactor KM normally opened contact is connected with another phase line L3 of three-phase alternating-current supply by insurance resistance FU2, also be connected with the normally-closed contact that starts auxiliary switch SA on the output in parallel of the normally opened contact that starts auxiliary switch SA and A.C. contactor KM normally-closed contact, this normally-closed contact that starts auxiliary switch SA is again by A.C. contactor KM normally opened contact connection zero line N.
A.C. contactor comprise static gag bit 1, with the coil 2 of static gag bit 1 corresponding moving armature 3 and A.C. contactor, be provided with convex protrusion crosspiece 4 in moving armature 3 one sides, regulate convex protrusion crosspiece 4 and prop up moving armature 3, convex protrusion crosspiece 4 is regulated the extended distance of static gag bit 1 and moving armature 3.
With CJT1-100 type A.C. contactor is example, and its coil rating voltage is 380V, but finds in the test that pick-up voltage is 230～420V.Also find simultaneously, after coil feeds the 380V adhesive, when the 220V-180V left and right sides, the not only reliable adhesive of armature, and drone hum is faint, and 1m is almost noiseless outward.
As shown in Figure 1, press start button ST after, the KM coil is by power supply L1, L3 power supply adhesive, the action of its self-holding contact, KM self-sustaining.At this moment, the transfer contact of KM is switched, and rapidly coil voltage is switched to N by L1, promptly coil is switched to the 220V power supply by the 380V power supply, has so just realized the high voltage startup of KM, the purpose of low pressure operation.Among Fig. 1, SA is for starting auxiliary switch.When the larger capacity electric motor starting, often cause line drop too big, if adopt this circuit this moment, may cause coil adhesive failure.For this reason, utilize SA when electric motor starting with KM normally-closed contact loop short circuit, and KM normally opened contact loop is disconnected, guarantee reliable adhesive in the motor M start-up course; When the M start-up course finishes, pull SA, the contact is switched, L1 and N switching allow the reliable adhesive of A.C. contactor KM coil.In circuit such as the startup of Y-Δ, self coupling reduced-voltage starting, SA can replace with 1 pair of transfer contact of running contactor or auxiliary relay, thereby realizes automaticallying switch.
This device is the extended distance of scalable static gag bit 1 also, sees Fig. 2.Regulate convex protrusion crosspiece 4, make major part prop up moving armature 3, allow the distance between moving armature 3 and the static gag bit 1 be about 18mm (CJT1-100), then contactor coil 2 is received on the 230V power supply, see and debug electric diagram 3.The S that closes, KM answers adhesive, and does not have significantly drone hum; Regulate voltage regulator TA then, allow voltage progressively descend, KM should be able to keep adhesive when the voltmeter V indication 180V left and right sides, but drone noise is arranged.As the S that closes, KM can adhesive, but when buzz was arranged, this showed that the L distance is also too big, should further regulate convex protrusion crosspiece 4.If convex protrusion crosspiece 4 is transferred to limit timing again, can adopt enamelled wire or other line, winding number circle on convex protrusion crosspiece 4 is to reduce extended distance L.And then as above-mentioned energizing test, till hum is got rid of.
The wiring routinely of CJT1-100 A.C. contactor, 380V needs about power consumption stream 0.45A; And when using the operation of this circuit instead, only about power consumption stream 0.15A, economize on electricity obviously.And long-term energising, the coil tepor can not burnt coil.During contactor work, 1m is almost can't hear hum in the external quiet environment.Above circuit and adjustment method are suitable for the A.C. contactor of the above larger capacity of various model 100A and do the silent power-saving operation.
Claims (2)
1. ac contactor silent electricity-saving appliance, it is characterized in that: a wherein phase line L1 of three-phase alternating-current supply connects the normally opened contact of startup auxiliary switch SA and the input in parallel of A.C. contactor KM normally-closed contact by insurance resistance FU1, the normally opened contact that starts auxiliary switch SA is connected with the coil of A.C. contactor KM by thermal relay normally closed contact FR with the output in parallel of A.C. contactor KM normally-closed contact, the coil of A.C. contactor KM is connected with stop button STP again, stop button STP is connected with the input in parallel of A.C. contactor KM normally opened contact with start button ST, the output in parallel of start button ST and A.C. contactor KM normally opened contact is connected with another phase line L3 of three-phase alternating-current supply by insurance resistance FU2, also be connected with the normally-closed contact that starts auxiliary switch SA on the output in parallel of the normally opened contact that starts auxiliary switch SA and A.C. contactor KM normally-closed contact, this normally-closed contact that starts auxiliary switch SA is again by A.C. contactor KM normally opened contact connection zero line N.
2. ac contactor silent electricity-saving appliance according to claim 1, it is characterized in that: A.C. contactor comprise static gag bit (1), with the coil (2) of the corresponding moving armature of static gag bit (1) (3) and A.C. contactor, be provided with convex protrusion crosspiece (4) in moving armature (3) one sides, regulate convex protrusion crosspiece (4) and prop up moving armature (3), convex protrusion crosspiece (4) is regulated the extended distance of static gag bit (1) and moving armature (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202410262U CN201725738U (en) | 2010-06-29 | 2010-06-29 | Noiseless electricity economizer of alternating-current contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202410262U CN201725738U (en) | 2010-06-29 | 2010-06-29 | Noiseless electricity economizer of alternating-current contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201725738U true CN201725738U (en) | 2011-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202410262U Expired - Fee Related CN201725738U (en) | 2010-06-29 | 2010-06-29 | Noiseless electricity economizer of alternating-current contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201725738U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119534A (en) * | 2015-10-09 | 2015-12-02 | 重庆大学 | Squirrel cage motor voltage regulation stability control starting control device |
| CN107658874A (en) * | 2017-10-30 | 2018-02-02 | 广州开能电气实业有限公司 | A kind of contactor with wide-voltage range applies loop |
-
2010
- 2010-06-29 CN CN2010202410262U patent/CN201725738U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119534A (en) * | 2015-10-09 | 2015-12-02 | 重庆大学 | Squirrel cage motor voltage regulation stability control starting control device |
| CN107658874A (en) * | 2017-10-30 | 2018-02-02 | 广州开能电气实业有限公司 | A kind of contactor with wide-voltage range applies loop |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20110629 |