CN104269952A - Output power adjustable motor for refrigeration compressor - Google Patents
Output power adjustable motor for refrigeration compressor Download PDFInfo
- Publication number
- CN104269952A CN104269952A CN201410556253.7A CN201410556253A CN104269952A CN 104269952 A CN104269952 A CN 104269952A CN 201410556253 A CN201410556253 A CN 201410556253A CN 104269952 A CN104269952 A CN 104269952A
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- Prior art keywords
- binding post
- relay
- coil
- terminal
- normally opened
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
- H02P25/18—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays
- H02P25/186—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays whereby the speed is regulated by using a periodic interrupter
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The invention relates to an output power adjustable motor for a refrigeration compressor. The output power adjustable motor is provided with a stator, a rotor and a wire holder. The stator is provided with a stator winding. The stator winding is composed of a main winding and an auxiliary winding. The wire holder is provided with a terminal I, a terminal VI and a terminal VII. The output power adjustable motor is characterized in that the wire holder is further provided with a terminal II, a terminal III, a terminal IV and a terminal V, the main winding is provided with a coil A, a coil B, a coil C and a coil D, the main winding and the auxiliary winding are correspondingly connected with the seven terminals through outgoing lines respectively, change-over switches are arranged between the terminal I and the terminal III, between the terminal II and the terminal III, between the terminal II and the terminal IV and between the terminal II and the terminal V respectively, the change-over switches and a low-voltage control circuit are in drive connection, and the low-voltage control circuit and a single-chip microcomputer logic controller are in drive connection. By means of the output power adjustable motor, intelligent switching of three wiring modes of the stator winding is achieved, energy consumption is reduced, and the refrigeration and compression efficiency of the motor is improved.
Description
Technical field
The present invention relates to a kind of motor, especially a kind of adjustable output power motor for refrigerant compressor.
Background technology
Along with the continuous propelling of energy-saving and emission-reduction paces, to the horsepower requirements of refrigeration plant also continuous lifting.Refrigerator is as refrigeration plant widely used in a kind of daily life, and the reduction of its operation energy consumption is particularly important to energy-conservation effect.In refrigeration plant (refrigerator), small-sized totally-enclosed refrigerating compressor is as the heart of whole system refrigeration work, and the service behaviour of refrigerant compressor directly affects energy consumption for cooling.Existing refrigerant compressor has closed shell, movement assembly is housed in housing, motor is included in movement assembly, motor has stator, rotor and junction block, junction block is arranged on the totally enclosed type shell of refrigerant compressor, junction block is provided with three binding posts, stator is made up of stator core and stator winding, stator winding is made up of main winding and auxiliary winding, together with wherein the end of main winding is connected directly between with the head end of auxiliary winding, and be connected with the binding post on junction block by the neutral line at tie point, and the head end of main winding is connected with two other binding post on junction block respectively by lead-out wire with the end of auxiliary winding.
As can be seen here, because the winding mode of the motor stator winding of existing refrigerant compressor inside is single, thus making motor have following shortcoming: motor only has an optimum working efficiency point, and during real work operation, the power output of motor constantly changes along with the load of outside, and the temperature of external load and box house is proportionate.Temperature is dragged down to stable maintenance low temperature from refrigeration plant (refrigerator) start, motor load is a process from high to low, namely the live load of motor is also a process changed from high in the end, and motor cannot when high load capacity and underload, all reach peak efficiency, thus causing the power consumption of motor large, operating efficiency is low.
Summary of the invention
When object of the present invention will solve the external load change for the motor of refrigerant compression in current refrigeration equipment (refrigerator) exactly, because motor stator winding structure is single, motor only has an optimum working efficiency point, cause motor when refrigeration work, power consumption is large, the problem that operating efficiency is low, provides a kind of adjustable output power motor for refrigerant compressor for this reason.
Concrete scheme of the present invention is: a kind of adjustable output power motor for refrigerant compressor, there is stator, rotor and junction block, stator is made up of stator core and stator winding, stator winding is made up of main winding and auxiliary winding, junction block have No. I, No. VI and No. VII binding post, it is characterized in that: junction block is also provided with No. II, No. III, No. IV and No. V binding post, main winding has loop A, B, C, D, its coil C and coil D forms parallel wound coil; The head end of loop A is connected with No. II binding post with No. I respectively with end; The head end of coil B is connected with No. III binding post, and the middle part of coil B is connected with No. V binding post by lead-out wire, and the end of coil B is connected with the head end of parallel wound coil, and is connected with No. IV binding post by lead-out wire at tie point; The end of parallel wound coil is connected with the head end of auxiliary winding, and is provided with the neutral line be connected with No. VII binding post at tie point, and the end of auxiliary winding is connected with No. VI binding post by lead-out wire; Described No. I is connected with the live wire of AC220V power supply with No. VI binding post, No. VII binding post is connected with the zero line of AC220V power supply, between described No. I and No. III binding post, between No. II and No. III binding post, between No. II and No. IV binding post, and be equipped with change over switch between No. II and No. V binding post, change over switch and low-voltage control circuit form to drive and are connected, and low-voltage control circuit and single-chip microcomputer logic controller form to drive and be connected.
Low-voltage control circuit described in the present invention comprises current detection circuit and low-voltage control circuit, current detection circuit has current transformer, current transformer is arranged on the live wire of AC220V power supply, and the two ends of current transformer Inside coil consist of wire and single-chip microcomputer logic controller and are electrically connected; Low-voltage control circuit is connected with AC220V power supply, form by three tunnel series loops are parallel with one another, wherein first via series loop is composed in series successively by the normally opened contact KS1-1 of the coil of relay K 1 and the normally-closed contact K2-1 of relay K 2, the normally-closed contact K3-1 of relay K 3 and external control relay K S1; Second tunnel series loop is composed in series successively by the normally opened contact KS2-1 of the coil of relay K 2 and the normally-closed contact K1-1 of relay K 1, the normally-closed contact K3-2 of relay K 3 and external control relay K S2; 3rd tunnel series loop is composed in series successively by the normally opened contact KS3-1 of the coil of relay K 3 and the normally-closed contact K1-2 of relay K 1, the normally-closed contact K2-2 of relay K 2 and external control relay K S3; Described change over switch is the normally opened contact K3-3 of normally opened contact K1-3 and K1-4 of relay K 1 and the normally opened contact K2-3 of relay K 2 and relay K 3, wherein normally opened contact K1-3 is connected between No. I and No. III binding post, normally opened contact K1-4 is connected between No. II and No. IV binding post, normally opened contact K2-3 is connected between No. II and No. III binding post, and normally opened contact K3-3 is connected between No. II and No. V binding post.
The logic controller of single-chip microcomputer described in the present invention forms to drive with external control relay K S1, KS2 and KS3 respectively and is connected.
Structure of the present invention is simple, it is ingenious to design, the control system consisted of single-chip microcomputer logic controller and low-voltage control circuit achieves the intelligent conversion of stator winding three kinds of modes of connection, make motor under different external load conditions, be in different operating states, and all obtain higher operating efficiency in same operating state, thus greatly reduce the energy consumption of motor, improve the operating efficiency that whole motor is run.
Accompanying drawing explanation
Fig. 1 is schematic front view of the present invention;
Fig. 2 is that schematic diagram is looked on a left side of Fig. 1;
Fig. 3 is the control principle drawing that the present invention forms with low-voltage control circuit and single-chip microcomputer logic controller;
Fig. 4 is the first mode of connection schematic diagram of stator winding in the present invention;
Fig. 5 is the Second Linking Method mode schematic diagram of stator winding in the present invention;
Fig. 6 is the third mode of connection schematic diagram of stator winding in the present invention.
In figure: 1-stator, 2-rotor, 3-junction block, 4-stator core, 5-stator winding, 6-main winding, 7-auxiliary winding, 8-loop A, 9-coil B, 10-coil C, 11-coil D, 12-live wire, 13-zero line, 14-low-voltage control circuit, 15-single-chip microcomputer logic controller, 16-temperature collect module, 17-motor.
Embodiment
See Fig. 1-6, the present invention has stator 1, rotor 2 and junction block 3, stator 1 is made up of stator core 4 and stator winding 5, stator winding 5 is made up of main winding 6 and auxiliary winding 7, junction block 3 has No. I, No. VI and No. VII binding post, particularly, junction block 3 is also provided with No. II, No. III, No. IV and No. V binding post, main winding 6 has loop A 8, coil B9, coil C10 and coil D11, and its coil C10 and coil D11 forms parallel wound coil; The head end of loop A 8 is connected with No. II binding post with No. I respectively with end; The head end of coil B9 is connected with No. III binding post, and the middle part of coil B9 is connected with No. V binding post by lead-out wire, and the end of coil B9 is connected with the head end of parallel wound coil, and is connected with No. IV binding post by lead-out wire at tie point; The end of parallel wound coil is connected with the head end of auxiliary winding 7, and is provided with the neutral line be connected with No. VII binding post at tie point, and the end of auxiliary winding 7 is connected with No. VI binding post by lead-out wire; Described No. I is connected with the live wire 12 of AC220V power supply with No. VI binding post, No. VII binding post is connected with the zero line 13 of AC220V power supply, between described No. I and No. III binding post, between No. II and No. III binding post, between No. II and No. IV binding post, and be equipped with change over switch between No. II and No. V binding post, change over switch forms to drive with low-voltage control circuit 14 and is connected, and low-voltage control circuit 14 forms to drive with single-chip microcomputer logic controller 15 and is connected.
See Fig. 3, low-voltage control circuit 14 described in the present embodiment comprises current detection circuit and low-voltage control circuit, current detection circuit has current transformer, current transformer is arranged on the live wire 12 of AC220V power supply, and the two ends of current transformer Inside coil consist of wire and single-chip microcomputer logic controller 15 and are electrically connected; Low-voltage control circuit is connected with AC220V power supply, form by three tunnel series loops are parallel with one another, wherein first via series loop is composed in series successively by the normally opened contact KS1-1 of the coil of relay K 1 and the normally-closed contact K2-1 of relay K 2, the normally-closed contact K3-1 of relay K 3 and external control relay K S1; Second tunnel series loop is composed in series successively by the normally opened contact KS2-1 of the coil of relay K 2 and the normally-closed contact K1-1 of relay K 1, the normally-closed contact K3-2 of relay K 3 and external control relay K S2; 3rd tunnel series loop is composed in series successively by the normally opened contact KS3-1 of the coil of relay K 3 and the normally-closed contact K1-2 of relay K 1, the normally-closed contact K2-2 of relay K 2 and external control relay K S3; Described change over switch is the normally opened contact K3-3 of normally opened contact K1-3 and K1-4 of relay K 1 and the normally opened contact K2-3 of relay K 2 and relay K 3, wherein normally opened contact K1-3 is connected between No. I and No. III binding post, normally opened contact K1-4 is connected between No. II and No. IV binding post, normally opened contact K2-3 is connected between No. II and No. III binding post, and normally opened contact K3-3 is connected between No. II and No. V binding post.
The logic controller of single-chip microcomputer described in the present embodiment 15 forms to drive with external control relay K S1, KS2 and KS3 respectively and is connected.
The logic controller of single-chip microcomputer described in the present embodiment 15 also forms communication with temperature collect module 16 and is connected, wherein single-chip microcomputer logic controller 15 and temperature collect module 16 are installed in the box house of refrigeration plant (refrigerator), temperature collect module 16 has PT100 temperature sensor, and PT100 temperature sensor is used for detecting and gathers the temperature of refrigeration plant (refrigerator) box house.
The present embodiment repeat circuit K1, relay K 2 and relay K 3 are in three tunnel series loops, connected by the normally-closed contact of respective coil with other two relays, realize relay K 1, interlocking between relay K 2 and relay K 3 controls, thus switched by the intelligence that low-voltage control circuit 14 realizes between motor 17 internal stator winding 5 three kinds of modes of connection, motor 17 is made to have three kinds of operating states, these three kinds of operating states are separate, do not interfere with each other, and often kind of operating state, motor 17 all has a best operating efficiency point.
Specific works mode of the present invention is as follows: the present invention is by current transformer and PT100 temperature sensor, gather the load current signal of motor 17 and the temperature signal of refrigeration plant (refrigerator) inside respectively, single-chip microcomputer logic controller 15 judges the load current signal that collects and temperature signal by built-in control program analysis, thus the operating state of drived control external control relay K S1, KS2 and KS3.
When external control relay K S1 adhesive, the normally opened contact KS1-1 of first via series loop China and foreign countries controlled relay KS1 closes, the coil of relay K 1 obtains electric, thus the normally opened contact K1-3 of control relay K1 and K1-4 adhesive, now the mode of connection of motor stator winding 5 is: No. I is connected with No. III binding post, No. II is connected with No. IV binding post, namely in stator winding 5 loop A 8 of main winding 6 and coil B9 parallel with one another, the bridging coil that loop A 8 and coil B9 form is connected, see Fig. 4 mutually with the parallel wound coil that coil C10 and coil D11 form.
When external control relay K S2 adhesive, the normally opened contact KS2-1 of the second series loop China and foreign countries, tunnel controlled relay KS2 closes, the coil of relay K 2 obtains electric, thus the normally opened contact K2-3 adhesive of control relay K2, now the mode of connection of motor stator winding 5 is: No. II is connected with No. III binding post, namely in stator winding 5, the loop A 8 of main winding 6 and coil B9 connect mutually, the series coil that loop A 8 and coil B9 form is connected, see Fig. 5 mutually with the parallel wound coil that coil C10 and coil D11 form.
When external control relay K S3 adhesive, the normally opened contact KS3-1 of the 3rd series loop China and foreign countries, tunnel controlled relay KS3 closes, the coil of relay K 3 obtains electric, thus the normally opened contact K3-3 adhesive of control relay K3, now the mode of connection of motor stator winding 5 is: No. II is connected with No. V binding post, namely a part of coil that in stator winding 5, the loop A 8 of main winding 6 and the middle part of coil B9 form to end is connected mutually, and the parallel wound coil that this series coil forms with coil C10 and coil D11 is connected, mutually see Fig. 6.
The present invention adopts above-mentioned control mode to achieve stator winding 5 three kinds of mode of connection intelligent conversion, make motor 17 under different external load conditions, be in different operating states, and all obtain higher operating efficiency in same operating state, thus greatly reduce the energy consumption of motor, improve the operating efficiency of motor.
Claims (3)
1. the adjustable output power motor for refrigerant compressor, there is stator, rotor and junction block, stator is made up of stator core and stator winding, stator winding is made up of main winding and auxiliary winding, junction block have No. I, No. VI and No. VII binding post, it is characterized in that: junction block is also provided with No. II, No. III, No. IV and No. V binding post, main winding has loop A, B, C, D, its coil C and coil D forms parallel wound coil; The head end of loop A is connected with No. II binding post with No. I respectively with end; The head end of coil B is connected with No. III binding post, and the middle part of coil B is connected with No. V binding post by lead-out wire, and the end of coil B is connected with the head end of parallel wound coil, and is connected with No. IV binding post by lead-out wire at tie point; The end of parallel wound coil is connected with the head end of auxiliary winding, and is provided with the neutral line be connected with No. VII binding post at tie point, and the end of auxiliary winding is connected with No. VI binding post by lead-out wire; Described No. I is connected with the live wire of AC220V power supply with No. VI binding post, No. VII binding post is connected with the zero line of AC220V power supply, between described No. I and No. III binding post, between No. II and No. III binding post, between No. II and No. IV binding post, and be equipped with change over switch between No. II and No. V binding post, change over switch and low-voltage control circuit form to drive and are connected, and low-voltage control circuit and single-chip microcomputer logic controller form to drive and be connected.
2. a kind of adjustable output power motor for refrigerant compressor according to claim 1, it is characterized in that: described low-voltage control circuit comprises current detection circuit and low-voltage control circuit, current detection circuit has current transformer, current transformer is arranged on the live wire of AC220V power supply, and the two ends of current transformer Inside coil consist of wire and single-chip microcomputer logic controller and are electrically connected; Low-voltage control circuit is connected with AC220V power supply, form by three tunnel series loops are parallel with one another, wherein first via series loop is composed in series successively by the normally opened contact KS1-1 of the coil of relay K 1 and the normally-closed contact K2-1 of relay K 2, the normally-closed contact K3-1 of relay K 3 and external control relay K S1; Second tunnel series loop is composed in series successively by the normally opened contact KS2-1 of the coil of relay K 2 and the normally-closed contact K1-1 of relay K 1, the normally-closed contact K3-2 of relay K 3 and external control relay K S2; 3rd tunnel series loop is composed in series successively by the normally opened contact KS3-1 of the coil of relay K 3 and the normally-closed contact K1-2 of relay K 1, the normally-closed contact K2-2 of relay K 2 and external control relay K S3; Described change over switch is the normally opened contact K3-3 of normally opened contact K1-3 and K1-4 of relay K 1 and the normally opened contact K2-3 of relay K 2 and relay K 3, wherein normally opened contact K1-3 is connected between No. I and No. III binding post, normally opened contact K1-4 is connected between No. II and No. IV binding post, normally opened contact K2-3 is connected between No. II and No. III binding post, and normally opened contact K3-3 is connected between No. II and No. V binding post.
3. a kind of adjustable output power motor for refrigerant compressor according to claim 1 and 2, is characterized in that: described single-chip microcomputer logic controller forms to drive with external control relay K S1, KS2 and KS3 respectively and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410556253.7A CN104269952B (en) | 2014-10-20 | 2014-10-20 | A kind of adjustable output power motor for refrigeration compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410556253.7A CN104269952B (en) | 2014-10-20 | 2014-10-20 | A kind of adjustable output power motor for refrigeration compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104269952A true CN104269952A (en) | 2015-01-07 |
| CN104269952B CN104269952B (en) | 2016-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410556253.7A Active CN104269952B (en) | 2014-10-20 | 2014-10-20 | A kind of adjustable output power motor for refrigeration compressor |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201113876Y (en) * | 2007-09-29 | 2008-09-10 | 孙晓飞 | Oil pumping machine dedicated multi- power integral energy-saving actuator |
| JP2009156236A (en) * | 2007-12-27 | 2009-07-16 | Toshiba Carrier Corp | Compressor driving device and refrigerating cycle device |
| CN202004604U (en) * | 2011-04-07 | 2011-10-05 | 南阳高特电机有限公司 | Multi-winding serial-connection variable-capacity induction motor and control device thereof |
| CN102447352A (en) * | 2010-09-20 | 2012-05-09 | 雷米技术有限公司 | Switch module for an electric machine having switchable stator windings |
| US20140138451A1 (en) * | 2012-11-16 | 2014-05-22 | Emerson Climate Technologies, Inc. | Compressor Crankcase Heating Control Systems and Methods |
| CN204068485U (en) * | 2014-10-20 | 2014-12-31 | 黄石艾博科技发展有限公司 | A kind of adjustable output power motor for refrigerant compressor |
-
2014
- 2014-10-20 CN CN201410556253.7A patent/CN104269952B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201113876Y (en) * | 2007-09-29 | 2008-09-10 | 孙晓飞 | Oil pumping machine dedicated multi- power integral energy-saving actuator |
| JP2009156236A (en) * | 2007-12-27 | 2009-07-16 | Toshiba Carrier Corp | Compressor driving device and refrigerating cycle device |
| CN102447352A (en) * | 2010-09-20 | 2012-05-09 | 雷米技术有限公司 | Switch module for an electric machine having switchable stator windings |
| CN202004604U (en) * | 2011-04-07 | 2011-10-05 | 南阳高特电机有限公司 | Multi-winding serial-connection variable-capacity induction motor and control device thereof |
| US20140138451A1 (en) * | 2012-11-16 | 2014-05-22 | Emerson Climate Technologies, Inc. | Compressor Crankcase Heating Control Systems and Methods |
| CN204068485U (en) * | 2014-10-20 | 2014-12-31 | 黄石艾博科技发展有限公司 | A kind of adjustable output power motor for refrigerant compressor |
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| Publication number | Publication date |
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| CN104269952B (en) | 2016-09-07 |
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Effective date of registration: 20200914 Address after: No.9, Ganghu Road, Luoqiao sub district office, Daye City, Huangshi City, Hubei Province Patentee after: Daye Dongai Electric Co.,Ltd. Address before: 435000, Huangshi, Hubei province Daye Luo Bridge Industrial Park Patentee before: HUANGSHI AIBO TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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Address after: 435006 No.9 Ganghu Road, Luoqiao sub district office, Daye City, Huangshi City, Hubei Province Patentee after: Huangshi Dongbei Motor Co.,Ltd. Address before: 435006 No.9 Ganghu Road, Luoqiao sub district office, Daye City, Huangshi City, Hubei Province Patentee before: Daye Dongai Electric Co.,Ltd. |
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