CN203951287U - Threephase motor, hermetic type compressor and refrigerating circulatory device - Google Patents
Threephase motor, hermetic type compressor and refrigerating circulatory device Download PDFInfo
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- CN203951287U CN203951287U CN201420310436.6U CN201420310436U CN203951287U CN 203951287 U CN203951287 U CN 203951287U CN 201420310436 U CN201420310436 U CN 201420310436U CN 203951287 U CN203951287 U CN 203951287U
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- neutral
- threephase motor
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Abstract
The utility model provides a kind of threephase motor, hermetic type compressor and refrigerating circulatory device, by utilizing the connection each other of wire that number is few to form the wiring structure of the such stator of neutral point, make that wiring in stator is easy, reliability is excellent and cost is low.Threephase motor (52) has: the many neutral lines (9u, 9v, 9w) that be supplied to multiple windings (2u, 2v, 2w) of three-phase alternating-current supply, are connected with described winding (2u, 2v, 2w) and by the described many neutral lines (9u, 9v, 9w) neutral points connected to one another (20), the described neutral line (9u, 9v, 9w) is multiple conducting wires to be collected and the wire group that forms, the wire component of at least one neutral line in the described many neutral lines cut and be connected with other neutral lines, thereby forming multiple neutral points.
Description
Technical field
The mode of connection that the utility model relates to centering point has carried out the threephase motor of improveing, has used the hermetic type compressor of this threephase motor and use the refrigerating circulatory device of this hermetic type compressor.
Background technology
In the past, as the mode of connection of the stator of the threephase motor being driven by three-phase alternating-current supply using, for example there is Y wiring as shown in Figure 6 in refrigerating circulatory device etc.In this Y wiring, need to form by the neutral line of a pair of winding 2u from 3 phases (U phase, V phase, W phase), 2v, the 2w neutral point 20 that wiring together forms of putting together.The wire of three neutral lines is intensively wired to neutral point 20.In this case, the connection each other of three neutral lines realizes by methods such as solder, TIG welding, solder brazing, the links undertaken by crimp type terminal.
The connection each other of the neutral line of Y wiring as above is because the number of its wire is very many, therefore, and wiring operation cost time.So the formation method of following neutral point is known: neutral point is divided into two and by the every two respectively wiring (for example, with reference to patent documentation 1) in three neutral lines.
Formerly technical literature
Patent documentation
Patent documentation 1: TOHKEMY 2000-232745 communique
Utility model content
The problem that utility model will solve
But the number of wire is still many for neutral point as above, therefore, a lot of wires must be interconnected in order to form neutral point, not only the wiring activity duration long, and it is high to produce the possibility of bad connection, existing problems aspect reliability.In addition, if the wiring number of neutral point increases, the insertion operation of insulating element becomes difficulty, also has the possibility that produces defective insulation.
The utility model is considered problem as above and is made, its object is to provide a kind of threephase motor, in this threephase motor, by the wiring structure of following stator, make that wiring in stator is easy, reliability is excellent and cost is low, in the wiring structure of this stator, form neutral point by number than the connection each other of in the past few wire.In addition, its object is to provide a kind of and uses the hermetic type compressor of this threephase motor and use the refrigerating circulatory device of this hermetic type compressor.
For solving the scheme of problem
In order to solve above-mentioned problem, threephase motor of the present utility model has: many neutral lines that be supplied to multiple windings of three-phase alternating-current supply, are connected with described winding and by described many neutral lines neutral point connected to one another, it is characterized in that, the described neutral line is multiple conducting wires to be collected and the wire group that forms, by the wire component of at least one neutral line in the described many neutral lines being cut and being connected with other neutral lines, form multiple neutral points.
At threephase motor of the present utility model, be preferably, by the wire group of a neutral line in the described many neutral lines being divided into two and being connected with other neutral lines, form described neutral point two positions, by overlap joint line, the described neutral point of two positions is connected.
At threephase motor of the present utility model, be preferably, all wire groups of the described many neutral lines are divided into two, the wire being divided into two is connected so that the described many neutral lines are engaged with each other, thus the described neutral point of two positions of formation.
Hermetic type compressor of the present utility model uses the threephase motor described in above-mentioned any one.
Refrigerating circulatory device of the present utility model uses above-mentioned hermetic type compressor.
The effect of utility model
According to threephase motor of the present utility model, by cutting down the wiring number of the neutral point in Y wiring, can alleviate the fortification of wiring and prevent bad connection, the threephase motor that reliability is high can be provided.
Brief description of the drawings
Fig. 1 is the cutaway view of the compressor of execution mode of the present utility model.
Fig. 2 is the Y wiring structure figure of the stator 1 of the threephase motor of execution mode of the present utility model.
Fig. 3 is the winding diagram of the neutral point 20 of the threephase motor of execution mode 1 of the present utility model.
Fig. 4 is the winding diagram of the neutral point 20 of the threephase motor of execution mode 2 of the present utility model.
Fig. 5 is the winding diagram of the neutral point 20 of the threephase motor of execution mode 3 of the present utility model.
Fig. 6 is the winding diagram of the Y mode of connection in threephase motor in the past.
Description of reference numerals
1 stator, 2u winding, 2v winding, 2w winding, 3 magnetic pole of the stator, 4 yoke iron cores, 5 rotors, the 9u neutral line, the 9v neutral line, the 9w neutral line, 10 stator cores, 20 neutral points, 30 jumpers, 50 closed containers, 51 compression mechanical parts, 52 threephase motors, 53 bent axles, 54 suction pipes, 55 reservoirs, 56 discharge pipes, 100 hermetic type compressors.
Embodiment
Below, based on brief description of the drawings execution mode of the present utility model.In addition, the utility model is not limited by the execution mode illustrating below.In addition, in following accompanying drawing, the magnitude relationship of each structure member is sometimes different from practical structures.
Execution mode 1.
Fig. 1 is the cutaway view of the compressor of execution mode of the present utility model.
Fig. 2 is the Y wiring structure figure of the stator 1 of the threephase motor of execution mode of the present utility model.
Fig. 3 is the winding diagram of the neutral point 20 of the motor of execution mode 1 of the present utility model.
First, the structure of compressor is described based on Fig. 1.
Fig. 1 is the cutaway view of the common hermetic type compressor 100 that uses of refrigerating circulatory device.
Hermetic type compressor 100, taking closed container 50 as housing, is accommodated with compression mechanical part 51, threephase motor 52 and bent axle 53 etc. in inside.
Threephase motor 52 is formed by stator 1 and rotor 5, and becomes following structure: by supply with three-phase alternating-current supply to stator 1, rotor 5 is rotated.
The gas refrigerant of the refrigerant loop (not shown) of refrigerating circulatory device is inhaled into from suction pipe 54, enters compression mechanical part 51 and compressed through reservoir 55, discharges from discharge pipe 56 as high temperature, high-pressure refrigerant.
The wiring structure of 3 phases in the stator 1 of threephase motor 52 then, is described based on Fig. 2.
Fig. 2 represents to apply the stator 1 of common threephase motor 52 of the present utility model.
This stator 1 has: terminal U, the V, the W that are supplied to three-phase alternating-current supply; And stator core 10, this stator core 10 have week upwards spaced apart multiple magnetic pole of the stator 3 (stator pole) of configuring and the yoke iron core 4 that links the outer circumferential side of these magnetic pole of the stator 3.For each magnetic pole of the stator 3 of this stator core 10, be separately installed with winding 2u, 2v, the 2w of three-phase Y connection line.
In stator 1, corresponding winding 2u, 2v, the 2w respectively respectively mutually with total 6 utmost points of 2 utmost points is in series configured to three-phase Y connection line.In addition, this threephase motor 52 has the rotor 5 that configures coaxially in stator 1 and have magnetic pole.
About U, V, this 3 phase of W, winding 2u, the 2v of a pair of (2 utmost point), 2w relatively arrange respectively on the radial direction of stator 1, form each a pair of winding 2u, 2v, the 2w in series wiring respectively of each phase.
And, the neutral line 9v of the winding 2v from V phase in stator 1, link together at the neutral point 20 of a position from the neutral line 9u of the winding 2u of U phase and from the neutral line 9w of the winding 2w of W phase.Neutral line 9u, 9v, 9w form by multiple conducting wires being tied together to the wire group forming.As wire, enumerate for example metal wire made of copper.
Then, use Fig. 3 that the wiring structure of the neutral point 20 of the threephase motor 52 of execution mode 1 of the present utility model is described.
Two neutral points 20 shown in Fig. 3 are by being divided into two the wire of the neutral line 9v of V phase and being connected and forming with the neutral line 9u of U phase and the neutral line 9w of W phase.And then, be constructed as follows structure: between two formed neutral points 20, overlap jumper 30 and make its conducting.In the time that wire is connected to each other, can carry out wiring by solder, TIG welding, solder brazing, crimp type terminal etc.
By such formation neutral point 20, become following structure:, by comparing with 2 situations that the corresponding neutral line is connected mutually number wire is still less connected at neutral point 20 with as prior art, thereby can alleviate wiring fortification, prevent bad connection.
Execution mode 2.
Fig. 4 represents the winding diagram of the neutral point 20 of the threephase motor 52 of execution mode 2 of the present utility model.
In addition, the Y wiring structure of the stator 1 of threephase motor 52 self is identical with execution mode 1.
Two neutral points 20 shown in Fig. 4 are divided into two the wire of the neutral line 9w of the neutral line 9u of the neutral line 9v of V phase, U phase and W phase respectively and 3 are connected and form neutral point 20 what be divided into two.
By such formation neutral point 20, become following structure:, by comparing with 2 situations that the corresponding neutral line is connected mutually number wire is still less connected at neutral point 20 with as prior art, thereby can alleviate wiring fortification, prevent bad connection.
Execution mode 3.
Fig. 5 represents the winding diagram of the neutral point 20 of the threephase motor 52 of execution mode 3 of the present utility model.
In addition, the Y wiring structure of the stator 1 of threephase motor 52 self is identical with execution mode 1.
Neutral point 20 shown in Fig. 5 connects one end of jumper 30 at the leading section of neutral line 9v, the neutral line 9u of U phase of V phase and the wire of the neutral line 9w of W phase, the other end of the jumper of three-phase 30 is connected to each other and is formed.
By such formation neutral point 20, become following structure: with will compare with 2 situations that the corresponding neutral line is connected mutually as prior art, by still less only with one mutually corresponding wire be connected with one end of jumper 30, thereby can alleviate wiring fortification, prevent bad connection.
The wiring structure of the neutral point of the Y wiring of execution mode 1～3 can adopt in all threephase motors, but the motor of preferably using as the hermetic type compressor of for example refrigerator or air-conditioning and adopting.
In addition, in execution mode 1～3, be provided with the magnetic pole of the stator of 6 utmost points at the stator 1 of threephase motor 52, but number of poles being not particularly limited.In addition, in stator 1, illustrate that winding 2u～2w series wiring that correspondence is respectively respectively had to total 6 utmost points of 2 utmost points mutually becomes the example of three-phase Y connection line, but self-evidently also winding 2u～2w can be wired as to three-phase Y connection line side by side.
Claims (5)
1. a threephase motor, has: many neutral lines that be supplied to multiple windings of three-phase alternating-current supply, are connected with described winding and by described many neutral lines neutral point connected to one another, it is characterized in that,
The described neutral line is multiple conducting wires to be collected and the wire group that forms, by the wire component of at least one neutral line in the described many neutral lines being cut and being connected with other neutral lines, forms multiple described neutral points.
2. threephase motor as claimed in claim 1, is characterized in that,
By the wire group of a neutral line in the described many neutral lines being divided into two and being connected with other neutral lines, form described neutral point two positions, by overlap joint line, the described neutral point of two positions is connected.
3. threephase motor as claimed in claim 1, is characterized in that,
All wire groups of the described many neutral lines are divided into two, the wire being divided into two is connected so that the described many neutral lines are engaged with each other, thereby form the described neutral point of two positions.
4. a hermetic type compressor, right to use requires the threephase motor described in any one in 1～3.
5. a refrigerating circulatory device, right to use requires the hermetic type compressor described in 4.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013134100A JP5950873B2 (en) | 2013-06-26 | 2013-06-26 | Three-phase motor, hermetic compressor, and refrigeration cycle apparatus |
| JP2013-134100 | 2013-06-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203951287U true CN203951287U (en) | 2014-11-19 |
Family
ID=51893303
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410258882.1A Active CN104253500B (en) | 2013-06-26 | 2014-06-12 | Three-phase Motor, Enclosed Compressor And Refrigeration Cycle Device |
| CN201420310436.6U Withdrawn - After Issue CN203951287U (en) | 2013-06-26 | 2014-06-12 | Threephase motor, hermetic type compressor and refrigerating circulatory device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410258882.1A Active CN104253500B (en) | 2013-06-26 | 2014-06-12 | Three-phase Motor, Enclosed Compressor And Refrigeration Cycle Device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5950873B2 (en) |
| CN (2) | CN104253500B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104253500A (en) * | 2013-06-26 | 2014-12-31 | 三菱电机株式会社 | Three-phase Motor, Enclosed Compressor And Refrigeration Cycle Device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207761947U (en) * | 2018-01-03 | 2018-08-24 | 广东美芝制冷设备有限公司 | Compressor and refrigeration equipment |
| JPWO2020250383A1 (en) * | 2019-06-13 | 2021-11-18 | 三菱電機株式会社 | Compressor and air conditioner |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1080085A (en) * | 1996-09-06 | 1998-03-24 | Hitachi Ltd | Electronic rotary machine |
| JP2000232745A (en) * | 1999-02-10 | 2000-08-22 | Toshiba Kyaria Kk | Compressor motor |
| JP3623683B2 (en) * | 1999-03-09 | 2005-02-23 | 山洋電気株式会社 | Manufacturing method of stator for rotating electrical machine and stator for rotating electrical machine |
| JP2001275292A (en) * | 2000-03-27 | 2001-10-05 | Mitsubishi Electric Corp | Three-phase motor |
| JP2003204646A (en) * | 2002-01-07 | 2003-07-18 | Toyota Motor Corp | Structure and method for neutral point coupling |
| JP2005224052A (en) * | 2004-02-06 | 2005-08-18 | Fujitsu General Ltd | Motor and method for manufacturing the same |
| JP2010166643A (en) * | 2009-01-13 | 2010-07-29 | Mitsubishi Electric Corp | Hermetically sealed compressor and refrigeration cycle device |
| DE102010033045B4 (en) * | 2009-09-08 | 2018-10-18 | Sew-Eurodrive Gmbh & Co Kg | Arrangement of a star point connection of the stator windings of an electric motor and electric motor |
| JP2011229221A (en) * | 2010-04-16 | 2011-11-10 | Hitachi Appliances Inc | Hermetic type electric compressor and refrigeration cycle device |
| JP5588751B2 (en) * | 2010-06-11 | 2014-09-10 | 日立アプライアンス株式会社 | Positive displacement compressor |
| JP5289499B2 (en) * | 2011-04-01 | 2013-09-11 | 三菱電機株式会社 | Rotating electric machine |
| JP5950873B2 (en) * | 2013-06-26 | 2016-07-13 | 三菱電機株式会社 | Three-phase motor, hermetic compressor, and refrigeration cycle apparatus |
-
2013
- 2013-06-26 JP JP2013134100A patent/JP5950873B2/en active Active
-
2014
- 2014-06-12 CN CN201410258882.1A patent/CN104253500B/en active Active
- 2014-06-12 CN CN201420310436.6U patent/CN203951287U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104253500A (en) * | 2013-06-26 | 2014-12-31 | 三菱电机株式会社 | Three-phase Motor, Enclosed Compressor And Refrigeration Cycle Device |
| CN104253500B (en) * | 2013-06-26 | 2017-04-12 | 三菱电机株式会社 | Three-phase Motor, Enclosed Compressor And Refrigeration Cycle Device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104253500B (en) | 2017-04-12 |
| JP2015012630A (en) | 2015-01-19 |
| CN104253500A (en) | 2014-12-31 |
| JP5950873B2 (en) | 2016-07-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141119 Effective date of abandoning: 20170412 |
|
| AV01 | Patent right actively abandoned |