CN104253500B - Three-phase Motor, Enclosed Compressor And Refrigeration Cycle Device - Google Patents
Three-phase Motor, Enclosed Compressor And Refrigeration Cycle Device Download PDFInfo
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- CN104253500B CN104253500B CN201410258882.1A CN201410258882A CN104253500B CN 104253500 B CN104253500 B CN 104253500B CN 201410258882 A CN201410258882 A CN 201410258882A CN 104253500 B CN104253500 B CN 104253500B
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Abstract
The present invention provides a three phase motor, an enclosed compressor using the three phase motor and a refrigeration cycle device using the enclosed compressor. By using a stator wiring structure of forming a neutral point by the connection of fewer conducting wires, a stator is easy in wiring, excellent in reliability and low in cost. The three phase motor (52)comprises a plurality of windings (2u, 2v, 2w) supplied to a three phase AC power supply, a plurality of neutral lines (9u,9v,9w) connecting the windings (2u,2v,2w), and the neutral point (20) for connecting the plurality of neutral lines (9u,9v,9w) mutually, wherein the plurality of neutral lines (9u,9v,9w) are conducting wire sets formed by gathering a plurality of conducting wires, and the conducting wire set of at least one of the plurality of neutral lines (9u,9v,9w) is segmented and is connected with the other neutral lines to form a plurality of neutral points.
Description
Technical field
The present invention relates to the mode of connection of centering point improved threephase motor, using the threephase motor
Hermetic type compressor and the refrigerating circulatory device using the hermetic type compressor.
Background technology
In the past, as the stator of the threephase motor driven by three-phase alternating-current supply used in refrigerating circulatory device etc.
The mode of connection, there is Y wiring for example as shown in Figure 6.In the Y wiring, need the formation will be from 3 phases (U phases, V phases, W
Phase) the neutral conductor of a pair of windings 2u, 2v, 2w put together to the neutral point 20 of wiring together.The line set of three neutral conductors
Neutral point 20 is wired to middlely.In this case, three neutral conductors it is mutual connect through solder, TIG weld, solder brazing,
The methods such as the link carried out by crimp type terminal are realizing.
The mutual connection of the neutral conductor of Y wiring as above is very more due to the bar number of its wire, therefore, wiring operation
Take time and energy.Then, the forming method of following neutral point is known：Neutral point is divided into into two and by three neutral conductors
Per two difference wiring (referring for example to patent documentation 1).
Citation
Patent documentation
Patent documentation 1：Japanese Unexamined Patent Publication 2000-232745 publications
The content of the invention
The invention problem to be solved
But, the bar number of wire is still more for neutral point as above, therefore, in order to form neutral point and must
Many wires must be connected with each other, not only the wiring activity duration is long, and produce the probability height of bad connection, in reliability side
Face has problems.In addition, if the terminal strip number of neutral point increases, the insertion operation of insulating element becomes difficult, there is also product
The probability of raw defective insulation.
The present invention consider problem as above and make, its object is to provide a kind of threephase motor, this three
In phase motor, by the wiring structure of following stator so that wiring in stator is easy, excellent in reliability and low cost,
In the wiring structure of the stator, neutral point is formed by the mutual connection of bar number wire less than in the past.In addition, its purpose
It is that a kind of hermetic type compressor using the threephase motor and the dress of the kind of refrigeration cycle using the hermetic type compressor are provided
Put.
For solving the scheme of problem
In order to solve above-mentioned problem, the threephase motor of the present invention has：Be supplied to three-phase alternating-current supply multiple windings,
The many neutral conductors being connected with the winding and the neutral point that many neutral conductors are connected to each other, it is characterised in that institute
It is the wire group collected multiple conducting wires and formed to state the neutral conductor, by by least one neutral conductor in many neutral conductors
Wire component cut and be connected with other neutral conductors, form multiple neutral points.
The hermetic type compressor of the present invention uses above-mentioned threephase motor.
The refrigerating circulatory device of the present invention uses above-mentioned hermetic type compressor.
The effect of invention
Threephase motor of the invention, by the terminal strip number of the neutral point in reduction Y wiring, can mitigate wiring
Fortification and prevent bad connection, can provide reliability high threephase motor.
Description of the drawings
Fig. 1 is the sectional view of the compressor of embodiments of the present invention.
Fig. 2 is the Y wiring structure figures of the stator 1 of the threephase motor of embodiments of the present invention.
Fig. 3 is the wiring diagram of the neutral point 20 of the threephase motor of embodiments of the present invention 1.
Fig. 4 is the wiring diagram of the neutral point 20 of the threephase motor of embodiments of the present invention 2.
Fig. 5 is the wiring diagram of the neutral point 20 of the threephase motor of embodiments of the present invention 3.
Fig. 6 is the wiring diagram of the Y modes of connection in conventional threephase motor.
Description of reference numerals
1 stator, 2u windings, 2v windings, 2w windings, 3 magnetic pole of the stator, 4 yoke iron cores, 5 rotors, the 9u neutral conductors, 9v are neutral
Line, the 9w neutral conductors, 10 stator cores, 20 neutral points, 30 jumpers, 50 hermetic containers, 51 compression mechanical parts, 52 three-phase electrics
Machine, 53 bent axles, 54 suction tubes, 55 reservoirs, 56 discharge pipes, 100 hermetic type compressors.
Specific embodiment
Hereinafter, based on description of the drawings embodiments of the present invention.In addition, the present invention is not by embodiments described below
Limit.In addition, in figures in the following, the magnitude relationship of each structure member is sometimes different from practical structures.
Embodiment 1.
Fig. 1 is the sectional view of the compressor of embodiments of the present invention.
Fig. 2 is the Y wiring structure figures of the stator 1 of the threephase motor of embodiments of the present invention.
Fig. 3 is the wiring diagram of the neutral point 20 of the motor of embodiments of the present invention 1.
First, the construction of compressor is illustrated based on Fig. 1.
Fig. 1 is the sectional view of the common hermetic type compressor 100 that refrigerating circulatory device is used.
Hermetic type compressor 100 is accommodated with compression mechanical part 51, threephase motor with hermetic container 50 as housing, internally
52 and bent axle 53 etc..
Threephase motor 52 is formed by stator 1 and rotor 5, and becomes following structure：By supplying three-phase alternating current to stator 1
Power supply and rotate rotor 5.
The gas refrigerant of the refrigerant loop (not shown) of refrigerating circulatory device is inhaled into from suction tube 54, through liquid storage
Device 55 enters compression mechanical part 51 and is compressed, and discharges from discharge pipe 56 as high temperature, high-pressure refrigerant.
Then, the wiring structure of 3 phases in the stator 1 of threephase motor 52 is illustrated based on Fig. 2.
Fig. 2 represents the stator 1 of the common threephase motor 52 using the present invention.
The stator 1 has：It is supplied to terminal U, V, W of three-phase alternating-current supply；And stator core 10, the stator core 10
With the multiple magnetic pole of the stator 3 (stator pole) for configuring at spaced intervals in the circumferential and link these magnetic pole of the stator 3
Outer circumferential side yoke iron core 4.For each magnetic pole of the stator 3 of the stator core 10, the winding of three-phase Y connection line is separately installed with
2u、2v、2w。
In stator 1, respectively add up to winding 2u, 2v, 2w of 6 poles with 2 poles are configured in series three-phase Y connection to each phase of correspondence
Line.In addition, the threephase motor 52 has coaxially configuring and the rotor 5 with magnetic pole in stator 1.
With regard to this 3 phase of U, V, W, winding 2u, 2v, the 2w of a pair (2 pole) relatively set respectively on the radial direction of stator 1
Put, constitute each pair winding 2u, 2v, 2w wiring in series respectively of each phase.
And, the neutral conductor 9v of the winding 2v from V phases in stator 1, from U phases winding 2u neutral conductor 9u, with
And link together from the neutral points 20 of the neutral conductor 9w a position of the winding 2w of W phases.The neutral conductor 9u, 9v, 9w are by general
The wire group that multiple conducting wires tie together is formed.As wire, metal wire for example made of copper is enumerated.
Then, the wiring structure of the neutral point 20 of the threephase motor 52 of embodiments of the present invention 1 is illustrated using Fig. 3.
Two neutral points 20 shown in Fig. 3 by by the wire of the neutral conductor 9v of V phases be divided into two and with the neutral conductor of U phases
The neutral conductor 9w of 9u and W phases connects and is formed.Further, following structure is constituted：Take between two neutral points 20 for being formed
Connect jumper 30 and turn it on.When wire is connected to each other, solder, TIG weld, solder brazing, pressure connection terminal can be passed through
Son etc. carries out wiring.
By so forming neutral point 20, become following structure：Will the neutral conductor mutually corresponding with 2 with as prior art
The situation of connection is compared, and the less wire of bar number is attached in neutral point 20, such that it is able to mitigating the fortification of wiring, preventing
Bad connection.
Embodiment 2.
Fig. 4 represents the wiring diagram of the neutral point 20 of the threephase motor 52 of embodiments of the present invention 2.
In addition, the Y wiring structures of the stator 1 of threephase motor 52 itself are identical with embodiment 1.
Two neutral points 20 shown in Fig. 4 are by the neutral conductor 9w's of the neutral conductor 9u and W phase of neutral conductor 9v, U phase of V phases
Wire is divided into two respectively and be divided into two 3 is connected and neutral point 20 is formed.
By so forming neutral point 20, become following structure：Will the neutral conductor mutually corresponding with 2 with as prior art
The situation of connection is compared, and the less wire of bar number is attached in neutral point 20, such that it is able to mitigating the fortification of wiring, preventing
Bad connection.
Embodiment 3.
Fig. 5 represents the wiring diagram of the neutral point 20 of the threephase motor 52 of embodiments of the present invention 3.
In addition, the Y wiring structures of the stator 1 of threephase motor 52 itself are identical with embodiment 1.
Wire of the neutral point 20 shown in Fig. 5 in the neutral conductor 9w of the neutral conductor 9u and W phase of neutral conductor 9v, U phase of V phases
Leading section connect jumper 30 one end, the other end of the jumper 30 of three-phase is connected to each other and is formed.
By so forming neutral point 20, become following structure：Will the neutral conductor mutually corresponding with 2 with as prior art
The situation of connection is compared, and less wire only mutually corresponding with is connected with one end of jumper 30, is connect such that it is able to mitigate
The fortification of line, prevent bad connection.
The wiring structure of the neutral point of the Y wiring of embodiment 1～3 can be adopted in all of threephase motor, but
Adopt preferably as the motor of the hermetic type compressor of such as refrigerator or air-conditioning.
In addition, in embodiment 1～3, in the stator 1 of threephase motor 52 magnetic pole of the stator of 6 poles, but number of poles are provided with
And be not particularly limited.In addition, showing the respectively winding 2u of total 6 poles with 2 poles～2w series connection by each phase of correspondence in stator 1
The example of three-phase Y connection line is wired as, but self-evident winding 2u～2w can also be side by side wired as three-phase Y connection line.
Claims (5)
1. a kind of threephase motor, has：It is supplied in many that multiple windings of three-phase alternating-current supply and the winding connect
Property line and the neutral point that many neutral conductors are connected to each other, it is characterised in that
Each of the neutral conductor is respectively the wire group collected multiple conducting wires and formed, by by many neutral conductors
In the wire component of at least one neutral conductor cut and be connected with other neutral conductors, form multiple neutral points.
2. threephase motor as claimed in claim 1, it is characterised in that
It is connected by the way that the wire group of a neutral conductor in many neutral conductors is divided into two and with other neutral conductors, two
Individual position forms the neutral point, is connected the neutral point of two positions by overlap joint line.
3. threephase motor as claimed in claim 1, it is characterised in that
The all of wire group of many neutral conductors is divided into two, the wire being divided into two is connected so that in described many
Property line is engaged with each other, so as to form the neutral point of two positions.
4. a kind of hermetic type compressor, usage right requires the threephase motor any one of 1～3.
5. a kind of refrigerating circulatory device, usage right 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 (2)
| Publication Number | Publication Date |
|---|---|
| CN104253500A CN104253500A (en) | 2014-12-31 |
| CN104253500B true CN104253500B (en) | 2017-04-12 |
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 After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420310436.6U Withdrawn - After Issue CN203951287U (en) | 2013-06-26 | 2014-06-12 | Threephase motor, hermetic type compressor and refrigerating circulatory device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5950873B2 (en) |
| CN (2) | CN104253500B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN207761947U (en) * | 2018-01-03 | 2018-08-24 | 广东美芝制冷设备有限公司 | Compressor and refrigeration equipment |
| US12040680B2 (en) | 2019-06-13 | 2024-07-16 | Mitsubishi Electric Corporation | Compressor and air conditioner |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000232745A (en) * | 1999-02-10 | 2000-08-22 | Toshiba Kyaria Kk | Compressor motor |
| CN1652435A (en) * | 2004-02-06 | 2005-08-10 | 富士通将军股份有限公司 | Motor and its manufacturing method |
| CN102220954A (en) * | 2010-04-16 | 2011-10-19 | 日立空调·家用电器株式会社 | Sealed type electric compressor, refrigeration cycle device |
| CN102278294A (en) * | 2010-06-11 | 2011-12-14 | 日立空调·家用电器株式会社 | Displacement compressor |
| CN102738938A (en) * | 2011-04-01 | 2012-10-17 | 三菱电机株式会社 | Rotary electric machine |
| CN203951287U (en) * | 2013-06-26 | 2014-11-19 | 三菱电机株式会社 | Threephase motor, hermetic type compressor and refrigerating circulatory device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1080085A (en) * | 1996-09-06 | 1998-03-24 | Hitachi Ltd | Electronic rotary machine |
| 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 |
| 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 |
-
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
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000232745A (en) * | 1999-02-10 | 2000-08-22 | Toshiba Kyaria Kk | Compressor motor |
| CN1652435A (en) * | 2004-02-06 | 2005-08-10 | 富士通将军股份有限公司 | Motor and its manufacturing method |
| CN102220954A (en) * | 2010-04-16 | 2011-10-19 | 日立空调·家用电器株式会社 | Sealed type electric compressor, refrigeration cycle device |
| CN102278294A (en) * | 2010-06-11 | 2011-12-14 | 日立空调·家用电器株式会社 | Displacement compressor |
| CN102738938A (en) * | 2011-04-01 | 2012-10-17 | 三菱电机株式会社 | Rotary electric machine |
| CN203951287U (en) * | 2013-06-26 | 2014-11-19 | 三菱电机株式会社 | Threephase motor, hermetic type compressor and refrigerating circulatory device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015012630A (en) | 2015-01-19 |
| CN203951287U (en) | 2014-11-19 |
| JP5950873B2 (en) | 2016-07-13 |
| CN104253500A (en) | 2014-12-31 |
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