CN109792167A - Stator, the manufacturing method of the stator, motor and compressor using the stator - Google Patents
Stator, the manufacturing method of the stator, motor and compressor using the stator Download PDFInfo
- Publication number
- CN109792167A CN109792167A CN201780060118.5A CN201780060118A CN109792167A CN 109792167 A CN109792167 A CN 109792167A CN 201780060118 A CN201780060118 A CN 201780060118A CN 109792167 A CN109792167 A CN 109792167A
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- Prior art keywords
- stator
- insulator
- stator core
- core
- peripheral surface
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/12—Impregnating, moulding insulation, heating or drying of windings, stators, rotors or machines
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Motors, Generators (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Compressor (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
本发明的课题在于，提供一种定子，其采用了绝缘子成型时的树脂不会漏出到外周的定子芯。在定子(51)中，仅将一个或多个第二电磁片(602)的外周从定子芯(60)的端面(60a)向内侧缩小而形成台阶部(611)。由于台阶部(611)的外周面(611a)的尺寸精度高，因此，绝缘子成型模具的型腔模与台阶部(611)的外周面(611a)之间的间隙容易维持成熔融树脂不漏出的程度。因此，与以往的利用绝缘子成型模具按压定子芯端面的方法相比，可抑制绝缘子成型时的树脂漏出到定子芯的外周。
An object of the present invention is to provide a stator using a stator core in which resin during molding of the insulator does not leak to the outer periphery. In the stator (51), only the outer circumference of one or more second electromagnetic sheets (602) is reduced inward from the end face (60a) of the stator core (60) to form a stepped portion (611). Since the dimensional accuracy of the outer peripheral surface (611a) of the stepped portion (611) is high, the gap between the cavity mold of the insulator molding die and the outer peripheral surface (611a) of the stepped portion (611) is easily maintained so that the molten resin does not leak out. degree. Therefore, compared with the conventional method of pressing the end face of the stator core with the insulator molding die, it is possible to suppress leakage of the resin during the molding of the insulator to the outer periphery of the stator core.
Description
Technical field
The present invention relates to insulators by insert molding and the integrally formed stator of stator core, and is related to the system of stator
Make method, motor and compressor using the stator.
Background technique
The stator of motor is needed for by the insulator of stator core and magnet wire insulation, as the forming method of insulator,
It is well known with the integrally formed method of stator.
For example, utilizing the injecting molding die of insulator according to patent document 1 (No. 4936051 bulletins of Japanese Patent Publication No.)
The end face for pressing the stator core of tubular, flows to molten resin in the cavity being surrounded by by the end face and type chamber (recess portion), forms
Insulator out.
Summary of the invention
Subject to be solved by the invention
But size is difficult to embody precision between the end face of stator core, the gap between the end face and mold of stator core is super
Permissible value is crossed in widened situation, molten resin leaks out and be attached to the periphery of stator core from the gap.In the feelings of compressor
Under condition, stator core is fixed in the cylindrical body part of compressor by hot charging or welding, therefore, is attached to the outer of stator core at that time
Week place it is resin melting and become rubbish, there is also make piping etc. block a possibility that.
Problem of the present invention is that providing a kind of stator, resin when which is formed using insulator will not be escaped to
The stator core of periphery.
Means for solving the problems
The stator of the first aspect of the present invention has stator core and insulator.Stator core is cricoid component.Insulator is
It is configured in the resin parts of the axial end face of stator core.Stator core is configured in the master with the tubular of its most peripheral inscribe
In body portion.There is the outer peripheral surface to be constituted with axial parallel mode in the periphery of the end face of stator core.At least the one of outer peripheral surface
Part forms stage portion, the stage portion than stator core most peripheral radially in the inner part.Compare main part in the periphery of insulator
Radially in the inner part.
According to the stator, it is formed with stage portion at least part of the outer peripheral surface of stator core, the stage portion compares stator
The most peripheral of core is radially in the inner part.It is therefore possible to use such as flowering structure: passing through insert molding and stator core one in insulator
In the case where body formed, the periphery by means of stage portion will block between the swaging die and core model of insulator molding mould.
Since the dimensional accuracy of stage portion outer peripheral surface is high, the swaging die of insulator molding mould and " stage portion "
Gap between outer peripheral surface is easy the degree for maintaining not leak out at molten resin.Therefore, insulator shaping mould is utilized with previous
The method of tool pressing stator core end face is compared, and resin when can inhibit insulator molding escapes to the periphery of stator core.
The stator of the second aspect of the present invention is in the stator of first aspect, in planar observation, the outer peripheral surface of stage portion
Periphery with insulator is same shape.
Assuming that when the periphery of stage portion and the periphery of insulator are in planar observation in the case where not same shape, exhausted
In the swaging die of edge shaping mould, for the chimeric part in stage portion periphery and for being needed between the cavity of the resin filling of insulator
Step, therefore, manufacturing procedure when mold manufactures increase, and incur die cost increase.
According to the stator, when the periphery of stage portion and the periphery of insulator are in planar observation be same shape the case where
Under, the part being fitted into for stage portion periphery is consistent with the cavity of resin filling for insulator, which is also used as the cavity, because
This, does not increase manufacturing procedure, not will increase die cost.
In addition, the stage portion outer peripheral surface of stator core is coplanar with the outer peripheral surface of insulator, therefore, adds after insulator molding
Working medium amount might as well.
For the stator of the third aspect of the present invention in the stator of first aspect or second aspect, stage portion is made only in stator
One side end of core.
According to the stator, since the periphery by means of stage portion can be used by the swaging die and core model of insulator molding mould
Between the structure that blocks, the end face of the side of stage portion is provided with without using mold compresses, therefore, be able to suppress insulator at
Resin when type escapes to the periphery of stator core.Also, even if using an end face of mold compresses stator core, due to another
There are spaces for end surface side, therefore, do not interfere to mold size has deviation between end face.
The stator of the fourth aspect of the present invention in first aspect either into the third aspect in the stator in face, in stator
The outer peripheral surface of core is formed with the i.e. multiple core notch of the notch axially extended.In planar observation, the most deep region of core notch
It is consistent with the outer peripheral surface of insulator.
According to the stator, the most deep region by the way that the periphery of insulator to be expanded to core notch is had an advantage in that, from
And it can ensure winding space.In addition, in the mode structure of insulator molding mould, since the punch-pin of core notch can will be formed
It is docked with the die face for the chimeric cavity plate outer rim of stage portion, therefore, after resin injection moulding, outer peripheral surface, the stator of insulator
The crest line of the bottom surface of the stage portion outer peripheral surface and core notch of core becomes straight line, and processing quality is good.
The stator of the fifth aspect of the present invention in first aspect either into fourth aspect in the stator in face, insulator
Include: the first insulator, is configured in an end face in the end face of stator core；With the second insulator, it is configured in another
One end face.First insulator is integrally connected with the second insulator at place in the inner part than respective most peripheral.
According to the stator, since the first insulator and the second insulator are being located integrally to connect in the inner part than respective most peripheral
It connects, therefore, can be integrally formed using injecting molding die.
The stator of the sixth aspect of the present invention first aspect to the 5th aspect in either face stator in, stator core
It is to be formed and plate-shaped member stacking is got up.
According to the stator, for example, can only by the periphery of one or more plate-shaped members from the end face of stator core inwardly
It reduces and forms stage portion.Therefore, in the case where insulator is integrally formed by insert molding and stator core, it can use and borrow
Help the structure that the periphery of stage portion will block between the swaging die and core model of insulator molding mould.
Determine in the manufacturing method of the stator of the seventh aspect of the present invention face that is first aspect either into the 6th aspect
The manufacturing method of son, by the way that the first specified amount is laminated to form main part in the first electromagnetic steel plate, wherein first electromagnetism
Steel plate has flat shape identical with the main part in stator core other than stage portion.Also, by that will have and step
The second specified amount less than the first specified amount is laminated in second electromagnetic steel plate of portion's same level shape on main part, to be formed
Stage portion.Stator core is formed as a result,.
According to the manufacturing method of the stator, as long as the second electromagnetic steel plate of the flat shape with stage portion is laminated in advance
Get up and is just capable of forming stage portion, it is therefore, easy to manufacture.
Determine in the manufacturing method of the stator of the eighth aspect of the present invention face that is first aspect either into the 7th aspect
The manufacturing method of son, by carrying out in injection molding mold to insulator with side that stage portion is chimeric with the swaging die of mold
Formula places stator core, and the injecting molten resin into mold, to mold insulator.
Due to stage portion periphery size is than dimensionally stable between the end face of stator core and precision is also high, insulator
Gap between the swaging die of molding die and the outer peripheral surface of stage portion is easy the degree for maintaining not leak out at molten resin.
Therefore, according to the manufacturing method of the stator, stator core end face is pressed using insulator molding mould with previous
Method is compared, and resin when being able to suppress insulator molding escapes to the periphery of stator core.
The motor of the ninth aspect of the present invention has: the stator in first aspect face either into eighth aspect；With turn
Son is configured in the inside of stator.
According to the stator, resin when being able to suppress insulator molding escapes to the periphery of stator core.
The manufacturing method of the compressor of the tenth aspect of the present invention is by hot charging or to weld first aspect to the 9th side
The stator in face is fixed on the main part of the tubular of compressor either in face.
According to the manufacturing method of the compressor, resin when being able to suppress insulator molding escapes to the periphery of stator core.
As a result, can prevent from " being attached to stator when stator core is fixed in the cylindrical body part of compressor by hot charging or welding
The periphery of core resin melting and the blocking such as become rubbish and make piping " Yu Weiran.
Invention effect
Stator according to the first aspect of the invention, stator core are configured in the main part with the tubular of its most peripheral inscribe
In, there is the outer peripheral surface to be constituted with axial parallel mode in the periphery of the end face of stator core, at least one of outer peripheral surface
Point form stage portion, the stage portion than stator core most peripheral radially in the inner part, also, main body is compared in the periphery of insulator
Portion is radially in the inner part.It is therefore possible to use such as flowering structure: integrally formed by insert molding and stator core in insulator
In the case of, the periphery by means of stage portion will block between the swaging die and core model of insulator molding mould.
Since the dimensional accuracy of stage portion outer peripheral surface is high, the swaging die of insulator molding mould and stage portion it is outer
Gap between circumferential surface is easy the degree for maintaining not leak out at molten resin.Therefore, insulator molding mould is utilized with previous
The method of pressing stator core end face is compared, and resin when can inhibit insulator molding escapes to the periphery of stator core.
Stator according to the second aspect of the invention, in planar observation, the periphery of stage portion and the periphery of insulator are phase
The part being fitted into swaging die for stage portion periphery in the case where similar shape and the cavity one of the resin filling for insulator
It causes, which is also used as the cavity, therefore, does not increase manufacturing procedure when manufacture mold, not will increase die cost.
In addition, the stage portion outer peripheral surface of stator core is coplanar with the outer peripheral surface of insulator, therefore, adds after insulator molding
Working medium amount might as well.
Stator according to the third aspect of the invention we, since the periphery by means of stage portion can be used by insulator shaping mould
The structure blocked between the swaging die and core model of tool, the end face of the side of stage portion is provided with without using mold compresses, therefore,
Resin when being able to suppress insulator molding escapes to the periphery of stator core.Also, even if utilizing the one of mold compresses stator core
A end face, due in other end surface side there are space, do not interfere to mold size has deviation between end face.
Stator according to the fourth aspect of the invention, in the mode structure of insulator molding mould, due to that can will be formed
The punch-pin of core notch is docked with the die face for the chimeric cavity plate outer rim of stage portion, therefore, after resin injection moulding, insulator
The crest line of the bottom surface of outer peripheral surface, the stage portion outer peripheral surface of stator core and core notch becomes straight line, and processing quality is good.
Stator according to the fifth aspect of the invention, since the first insulator and the second insulator are than respective most peripheral
Place is integrally connected in the inner part, therefore, can be integrally formed using injecting molding die.
Stator according to the sixth aspect of the invention, for example, can be only by the periphery of one or more plate-shaped members from calmly
The end face of sub- core reduces inwardly and forms stage portion.Therefore, integrally formed by insert molding and stator core in insulator
In the case of, the knot that will be blocked between the swaging die and core model of insulator molding mould by means of the periphery of stage portion can be used
Structure.
The manufacturing method of stator according to the seventh aspect of the invention, as long as in advance by the flat shape with stage portion
The stacking of second electromagnetic steel plate gets up just to be capable of forming stage portion, therefore, easy to manufacture.
The manufacturing method of stator according to the eighth aspect of the invention is determined with previous being pressed using insulator molding mould
The method of sub- core end face is compared, and resin when being able to suppress insulator molding escapes to the periphery of stator core.
Motor according to the ninth aspect of the invention, resin when being able to suppress insulator molding escape to the outer of stator core
Week.
The manufacturing method of compressor according to the tenth aspect of the invention, resin when being able to suppress insulator molding leak out
To the periphery of stator core.As a result, when stator core is fixed in the cylindrical body part of compressor by hot charging or welding, it can
Prevent " be attached to the resin melting of the periphery of stator core and become rubbish and make piping etc. blocking " Yu Weiran.
Detailed description of the invention
Fig. 1 is the longitudinal section view of Rotary Compressor.
Fig. 2 is the cross-sectional view of the stator core of the line A-A in Fig. 1.
Fig. 3 is the top view of stator.
Fig. 4 is the cross-sectional view of the stator of the line B-B in Fig. 3.
Fig. 5 A is the plan view of stator core.
Fig. 5 B is the side view of stator core.
Fig. 6 is the perspective view of stator core with the insulator for being attached thereon end face.
Fig. 7 is the perspective view of stator core with the insulator for being installed in its lower end surface.
Fig. 8 A is the schematic sectional view for showing the state that the molding die in insulator is provided with stator core.
Fig. 8 B is to show the molding die in insulator and be provided with to be provided with the shape of the stator core of stage portion in both ends surface side
The schematic sectional view of state.
Fig. 8 C is the schematic sectional view for showing the state that the molding die in insulator is provided with previous stator core.
Fig. 9 is the plan view of the stator core of variation.
Specific embodiment
In the following, referring to stator of the attached drawing to embodiments of the present invention, the motor using the stator and having the motor
Compressor be illustrated.In addition, following embodiment is concrete example of the invention, and non-limiting technology model of the invention
It encloses.
Motor using the stator of present embodiment is the drive motor of Rotary Compressor.Rotary Compressor and air-conditioning
The refrigerant circuit connection that the refrigerating plants such as device have.Rotary Compressor has to the refrigeration flowed in refrigerant circuit
The function that agent gas is compressed.
(1) structure of Rotary Compressor 101
Fig. 1 is the longitudinal section view of Rotary Compressor 101.In Fig. 1, Rotary Compressor 101 has shell 10, compression
Mechanism 15, motor 16, crankshaft 17, suction line 19 and discharge pipe 20.Compressed refrigerant is example in Rotary Compressor 101
Such as R410A, R22, R32 and carbon dioxide.In the following, being illustrated to each component of Rotary Compressor 101.
(1-1) shell 10
Shell 10 is made of the bottom 13 in columnar cylindrical body portion 11, the top 12 of bowl-type and bowl-type.Top 12 with
The upper end in cylindrical body portion 11 links.The lower end in bottom 13 and cylindrical body portion 11 links.
Since shell 10 is formed by rigid element, it is not easy the inner space due to shell 10 and the pressure of exterior space
The variation of power and temperature deforms and breakage.Shell 10 is configured to, cylindrical body portion 11 it is columnar axially along lead
Vertical direction.
In addition, in the present embodiment, cylindrical body portion 11 is cylinder-shaped, but the main body of its tubular is not limited to cylinder,
It can be the tubular structure other than the cylinders such as cylindroid, prism.
The lower part of the inner space of shell 10 constitutes the trapped fuel portion 10a for stockpiling lubricating oil.Lubricating oil is refrigerator oil, quilt
For improving the lubricity for the sliding part being present in the inner space of shell 10.
Shell 10 accommodates compression mechanism 15, motor 16 and crankshaft 17.Compression mechanism 15 links through crankshaft 17 and motor 16.It inhales
Enter pipe 19 and discharge pipe 20 to link in a manner of penetrating through shell 10 with shell 10.
(1-2) compression mechanism 15
Compression mechanism 15 is made of front end housing 23, cylinder body 24, back cylinder cover 25 and piston 21.Front end housing 23, cylinder body 24 and after
Cylinder cap 25 is integrally fastened by laser welding.
The refrigerant gas of 15 draws low pressure of compression mechanism is compressed, and the refrigerant gas of high pressure is discharged.Compression
The space of the top of mechanism 15 is the high-pressure space S1 for the refrigerant discharge compressed by compression mechanism 15.Compression mechanism 15 is immersed in
It is accumulated in the lubricating oil in trapped fuel portion 10a.Lubricating oil is provided to the sliding part of compression mechanism 15.
Compression mechanism 15 has discharge chambe 40.Discharge chambe 40 is to be surrounded to form by front end housing 23, cylinder body 24 and back cylinder cover 25
Space.Discharge chambe 40 passes through the row that piston 21 is divided into the suction chamber being connected to suction line 19 and is connected to high-pressure space S1
Room out.
The eccentric axial portion 17a of crankshaft 17 is embedded in piston 21.When crankshaft 17 rotates, piston 21 is carried out with crankshaft 17
Revolution motion centered on rotation axis.By the revolution motion of piston 21, the volume variation of suction chamber and discharge room.
(1-3) motor 16
Motor 16 is brushless DC (direct current) motor, is arranged on the top of compression mechanism 15.Motor 16 is by 51 He of stator
Rotor 52 is constituted.Stator 51 is columnar component, is fixed in the inner peripheral surface in the cylindrical body portion 11 of shell 10.
Rotor 52 is cylindrical component, is arranged on the inside of stator 51.It is formed between stator 51 and rotor 52
There is small gap.The details of structure about motor 16 is illustrated in latter half.
(1-4) crankshaft 17
Crankshaft 17 is configured to, and center axis thereof is along vertical direction.Crankshaft 17 has eccentric axial portion 17a.Crankshaft 17
Eccentric axial portion 17a and the piston 21 of compression mechanism 15 link.The rotor of end and motor 16 on the upside of the vertical direction of crankshaft 17
52 connections.Crankshaft 17 is supported by front end housing 23 and back cylinder cover 25.
(1-5) suction line 19
Suction line 19 is the pipe for penetrating through the cylindrical body portion 11 of shell 10.In the inner space of shell 10, suction line 19
End be embedded in compression mechanism 15.In the exterior space of shell 10, the end of suction line 19 and refrigerant circuit connect
It connects.Suction line 19 is for providing the pipe of refrigerant from refrigerant circuit to compression mechanism 15.
(1-6) discharge pipe 20
Discharge pipe 20 is the pipe for penetrating through the top 12 of shell 10.In the inner space of shell 10, the end of discharge pipe 20
Positioned at the top of motor 16.In the exterior space of shell 10, the end of discharge pipe 20 is connect with refrigerant circuit.Discharge pipe 20
It is the pipe that will be provided by the compressed refrigerant of compression mechanism 15 to refrigerant circuit.
(2) structure of motor 16
Fig. 2 is the cross-sectional view of the stator core 60 of the line A-A in Fig. 1.Fig. 3 is the top view of stator 51.Fig. 4 is in Fig. 3
The cross-sectional view of the stator 51 of line B-B.
Motor 16 is the concentratred winding motor with 9 concentratred winding coils.Motor 16 is driven by inverter control
Variable speed motor.Motor 16 is the three-phase motor with U phase, V phase and W phase.
(2-1) stator 51
Stator 51 has stator core 60 and insulator 71,72.As shown in figure 4, the upper end of the vertical direction in stator core 60
Face 60a is equipped with insulator 71, is equipped with insulator 72 in the lower end surface 60b of the vertical direction of stator core 60.
(2-1-1) stator core 60
Fig. 5 A is the plan view of stator core 60.In addition, Fig. 5 B is the side view of stator core 60.It is fixed in Fig. 5 A and Fig. 5 B
Sub- core 60 is the component of tubular made of the multiple annular plates being made of electromagnetic steel plate gather into folds on vertical direction upper layer.Stator core
The axial direction of 60 tubular is vertical direction.
Specified interval D axially, reduces in the inner part from the upper surface 60a of stator core 60 to the most peripheral than stator core 60
And form stage portion 611.
Stator core 60 is made of variform first electromagnetic plate 601 each other and the second electromagnetic plate 602.Pass through punch press process
Electromagnetic steel plate is set to become shape identical with the flat shape in Fig. 5 A, to mold the first electromagnetic plate 601.Added by punching
Work makes the second electromagnetic plate 602 be shaped to periphery of the periphery than the first electromagnetic plate 601 in the inner part and for circumferential shapes, to mold
First electromagnetic plate 602.
By by the first electromagnetic plate 601 stacking first regulation the piece number and form stator core 60 in addition to stage portion 611 with
Outer main part 61.In addition, by the way that the second electromagnetic plate 602 is formd step and the second regulation the piece number is laminated on main part 61
Portion 611.Second regulation the piece number less than first regulation the piece number, 1 to 5 or so.
Stator core 60 is fixed in the shell 10 of Rotary Compressor 101.Stator core 60 and shell 10 are consolidated by hot charging
It is fixed.Firstly, the cylindrical body portion 11 of shell 10 is heated to 400 degree or so, expand the internal diameter in cylindrical body portion 11.Then,
Stator core 60 is inserted into the widened cylindrical body portion 11 of internal diameter, cylindrical body portion 11 is cooling.In turn, cylindrical body portion 11
Internal diameter shrink, so that the periphery of stator core 60 is fastened by the inner peripheral surface in cylindrical body portion 11, the fixed of the two is completed.In addition,
Stator core 60 can also be fixed in shell 10 by being pressed into or welding.
As shown in Fig. 2, stator core 60 has main part 61 and 9 tooth 62.Inner peripheral surface court of each tooth 62 from main part 61
It is prominent to the radially inner side of main part 61.The radial direction of main part 61 is in the horizontal plane orthogonal with vertical direction.9 62 edges of tooth
The circumferential direction of main part 61 equally spaced configured by 40 degree of angle interval.
As shown in Fig. 2, the outer peripheral surface in the main part 61 of stator core 60 is formed with 9 core notch 61a.Each core notch
61a is the notch formed from the upper surface of main part 61 to lower end surface along the central axis of main part 61.
From tooth 62, each core notch 61a is located at the radial outside of main part 61.9 core notch 61a are along main part
61 circumferential direction is equally spaced configured by 40 degree of angle interval.Core notch 61a is formed in the cylindrical body of Rotary Compressor 101
Along the space that vertical direction extends between portion 11 and stator 51.
(2-1-2) winding 66
As shown in Figure 3 and Figure 4, winding 66 is wound with the state across insulator 71,72 on each tooth 62 of stator core 60.
9 coils U1, U2, U3 are formed in stator 51；V1,V2,V3；W1,W2,W3.In Fig. 3, sequentially match in the direction of the clock
It is equipped with coil U1, W3, V1, U2, W1, V2, U3, W2, V3.
Winding 66 is the electric conductors such as copper wire.Winding 66 be 9 windings 66 be wound on each tooth 62 each independently, institute
The concentratred winding coil of meaning.Insulator 71,72 insulate stator core 60 and winding 66.Winding 66 is along blank arrow shown in Fig. 3
Head is wound in the clockwise direction.
Winding 66 is wound respectively on the tooth 62 that angle interval in the circumferential direction of stator core 60 by 120 degree configures and forms line
Enclose U1, U2, U3.Coil U1, U2, U3 are connected in parallel and in series ground wiring, form the U phase of motor 16.
Winding 66 is wound respectively on the tooth 62 that angle interval in the circumferential direction of stator core 60 by 120 degree configures and forms line
Enclose V1, V2, V3.Coil V1, V2, V3 are connected in parallel and in series ground wiring, form the V phase of motor 16.
Winding 66 is wound respectively on the tooth 62 that angle interval in the circumferential direction of stator core 60 by 120 degree configures and forms line
Enclose W1, W2, W3.Coil W1, W2, W3 are connected in parallel and in series ground wiring, form the W phase of motor 16.
As shown in figure 3, in circumferentially-adjacent two coil U1, U2, U3 along stator core 60；V1,V2,V3；W1,W2,
The gap i.e. gap SL1~SL9 being formed between W3 between coil.In the top view of stator 51 shown in Fig. 3, gap SL1 is
Gap between coil U1 and coil W3, gap SL2~SL9 are configured in the direction of the clock since the SL1 of gap.
(2-1-3) insulator 71,72
Insulator 71,72 is both ends of the surface 60a, 60b being installed in the vertical direction of stator core 60 respectively (referring to Fig. 4)
On insulator.Insulator 71,72 is by such as liquid crystal polymer (LCP), polybutylene terephthalate (PBT) (PBT), polyphenylene sulfide
Ether (PPS), polyimides and polyester etc. have the resin forming of high-fire resistance.
Fig. 6 is the perspective view for being installed in the insulator 71 of upper surface 60a of stator core 60.In addition, Fig. 7 is to be installed in
The perspective view of the insulator 72 of the lower end surface 60b of stator core 60.
Insulator 71 is made of annulus 71a, 9 protruding portion 71b and 9 wall portion 71c.
Annulus 71a has annulus shape.The upper end face contact of the main part 61 of annulus 71a and stator core 60.
The radially inner side of protruding portion 71b from inner peripheral surface towards the annulus 71a of annulus 71a are prominent.Protruding portion 71b along
Annulus 71a's is arranged circumferentially.The upper end face contact of the tooth 62 of protruding portion 71b and stator core 60.The quantity of protruding portion 71b and master
The quantity of the tooth 62 in body portion 61 is identical.Protruding portion 71b and tooth 62 are wound with winding 66 together.
Wall portion 71c from the end face of annulus 71a towards vertical direction above it is prominent.Wall portion 71c is formed in than protruding portion 71b
By radial outside position and be formed in the radial outside of winding 66.
Wall portion 71c has the first inner surface 81a and the first outer surface 81b.First inner surface 81a is the radial direction of wall portion 71c
The face of inside.First outer surface 81b is the face of the radial outside of wall portion 71c.First inner surface 81a is opposed with winding 66.
Similarly, insulator 72 is also made of annulus 71a, 9 protruding portion 71b and 9 wall portion 71c (referring to Fig. 7).
Annulus 72a has annulus shape.The lower end face contact of the main part 61 of annulus 72a and stator core 60.
The radially inner side of protruding portion 72b from inner peripheral surface towards the annulus 72a of annulus 72a are prominent.Protruding portion 72b along
Annulus 72a's is arranged circumferentially.The lower end face contact of the tooth 62 of protruding portion 72b and stator core 60.The quantity of protruding portion 72b and master
The quantity of the tooth 62 in body portion 61 is identical.Protruding portion 72b and tooth 62 are wound with winding 66 together.
Wall portion 72c is prominent from the end face of annulus 72a towards vertical direction.Wall portion 72c is formed in than protruding portion 72b by diameter
Position outward and the radial outside for being formed in winding 66.
Wall portion 72c has the first inner surface 82a and the first outer surface 82b.First inner surface 82a is the radial direction of wall portion 72c
The face of inside.First outer surface 82b is the face of the radial outside of wall portion 72c.First inner surface 82a is opposed with winding 66.
(2-2) rotor 52
In Fig. 1, rotor 52 has rotor core 52a and multiple magnet 52b.Rotor core 52a in vertical direction by being laminated
Multiple metal plates constitute.Magnet 52b is embedded in rotor core 52a.Magnet 52b along rotor core 52a circumferential direction at equal intervals
Ground configuration.
Rotor 52 and crankshaft 17 link.Crankshaft 17 penetrates through rotor 52 in vertical direction.Rotor 52 through crankshaft 17 and with pressure
Contracting mechanism 15 connects.
(3) manufacturing method of insulator 71,72
Fig. 8 A is the schematic sectional view for showing the state that the molding die in insulator 71,72 is provided with stator core 60.?
In Fig. 8 A, upper mold MDA and lower die MDB are the insert molding molds for being injection moulded out insulator 71,72 in stator core 60.
Upper mold MDA and lower die MDB is molded after stator core 60 is placed on lower die MDB.
Cavity SA is formed between the upper mold MDA after molding and stator core 60.Molten resin is filled into cavity SA
In, to mold insulator 71.
Also, cavity SB is formed between the lower die MDB after molding and stator core 60.Molten resin is filled into the sky
In chamber SB, to mold insulator 72.In addition, insulator 71 and insulator 72 are locating one than respective most peripheral in the inner part
Ground connection.
(previous method)
Here, the difference with previous methods is illustrated.Fig. 8 C be the molding die for showing in insulator be provided with
The schematic sectional view of the state of past stator core.In Fig. 8 C, in the past, the end face of upper mold MDA pressing stator core 160 is utilized
Molten resin is filled in cavity SA and cavity SB by 160a.
But since stator core 160 is formed by the stacking of electromagnetic steel plate, height dimension L is unstable, is closing
In the widened situation of clearance C L between upper mold MDA after mould and the end face 160a of stator core 160, molten resin leaks out therefrom
And it is fixedly attached on the outer peripheral surface of stator core 160.
Due to stator core 160 outer peripheral surface by hot charging in the shell 10 of Rotary Compressor 101, when being attached with
When such resin, it is possible to a problem that causing with blockage.
(new method)
In the present embodiment, above-mentioned resin leakage in order to prevent, as shown in Figure 5 B, in the main part 61 of stator core 60
The upper surface side 60a be arranged stage portion 611, the stage portion 611 have less than main part 61 periphery periphery, such as Fig. 8 A institute
Show, using the method for keeping the periphery of stage portion 611 opposed with the inner peripheral surface of cavity SA of upper mold MDA.
Since stator core 60 is the stacking of electromagnetic steel plate, although size is unstable between end face, pass through punch press process
The radial dimension of stage portion is set to determine size with high precision, therefore, the dimensional discrepancy of between-lot is minimum.Thus, it is possible to will
Gap control between the inner peripheral surface of the cavity SA of upper mold MDA and the outer peripheral surface 611a of stage portion 611 is within the allowable range.
As a result, can prevent molten resin from leaking out from the gap and be attached to the periphery of the main part 61 of stator core 60
Face.
(other)
In addition, in the present embodiment, due to it will not be generated between the lower end surface 60b and lower die MDB of stator core 60 between
Gap, therefore, in the not set stage portion 611 in the lower end surface side 60b, it is of course also possible to which stage portion 611 is arranged in the lower end surface side 60b.
Fig. 8 B is to show the molding die in insulator 71,72 and be provided with to be provided with determining for stage portion 611 in both ends surface side
The schematic sectional view of the state of sub- core 60.In the fig. 8b, the principle not leaked out due to molten resin with it is stated that Fig. 8 A feelings
Condition is identical, therefore, omits the description.
On the other hand, as both ends surface side setting table rank portion 611 of stator core 60 the advantages of, this point can be enumerated: logical
When crossing robots arm and being placed in stator core 60 in lower die MDB, the upper and lower of stator core 60 can not minded and configured by stator core
On 60 conveyers provided to robots arm side, good work.
(4) movement of compressor
The movement of Rotary Compressor 101 is illustrated referring to Fig.1.When motor 16 starts, link with rotor 52
The eccentric axial portion 17a of crankshaft 17 is eccentrically rotated centered on the rotation axis of crankshaft 17.
By the rotation of crankshaft 17, carry out with the piston 21 of eccentric axial portion 17a connection in discharge chambe 40 with crankshaft 17
Revolution motion centered on rotation axis.By the revolution motion of piston 21, the suction chamber of discharge chambe 40 and the volume of discharge room
Variation.
The gas refrigerant of low pressure is from the suction chamber that suction line 19 is inhaled into discharge chambe 40.Pass through the revolution of piston 21
Movement, the volume reducing of suction chamber.The refrigerant in suction chamber is compressed as a result, and suction chamber becomes the gas for being filled with high pressure
The discharge room of refrigerant.The gas refrigerant of high pressure is discharged in high-pressure space S1 from discharge room.Discharged refrigerant court
Pass through space, that is, air gap between stator 51 and rotor 52 above to vertical direction.Then, refrigerant is discharged from discharge pipe 20
To the outside of shell 10.
The lubricating oil being accumulated in the trapped fuel portion 10a of shell 10 is mainly provided to the sliding part of compression mechanism 15.It is mentioned
The lubricating oil for being supplied to the sliding part of compression mechanism 15 is flowed into discharge chambe 40.In discharge chambe 40, lubricating oil becomes small oil
It drips and is mixed into refrigerant gas.It therefore, include lubricating oil from the compression refrigerant that compression mechanism 15 is discharged.Compress refrigerant
Contained in lubricating oil a part in the high-pressure space S1 of the top of motor 16 by means of centrifugal force that refrigerant miscarriage is raw
And it is separated with refrigerant, and be attached to the inner peripheral surface of shell 10.The lubricating oil of the inner peripheral surface of shell 10 is attached to along shell 10
Inner peripheral surface fall and to the height and position of the upper surface for the stator 51 for reaching motor 16.In turn, lubricating oil passes through stator core 60
Core notch 61a and fall.Trapped fuel portion 10a is eventually returned to by the lubricating oil after core notch 61a.
In addition, being determined according to the Rotary Compressor 101 due to using molten resin when insulator 71 forms and not escaping to
Therefore the new method of the outer peripheral surface of sub- core 60 can prevent from " by 60 hot charging of stator core or being welded in Rotary Compressor
When 101 shell 10, resin is discrete and remains in shell 10 and flows together with refrigerant and lubricating oil and block up piping etc.
The states of affairs such as plug " are in possible trouble, therefore, high reliablity.
(5) feature
(5-1)
According to stator 51, only by the periphery of one or more second electromagnetic plates 602 from the end face 60a of stator core 60 inwardly
It reduces and forms stage portion 611.It is therefore possible to use such structure: passing through insert molding and stator core in insulator 71
In the case that 60 are integrally formed, by means of the outer peripheral surface 611a of stage portion 611 by the swaging die and core model of insulator molding mould
Between block.
Since the dimensional accuracy of the outer peripheral surface 611a of stage portion 611 is high, the swaging die and platform of insulator molding mould
Gap between the outer peripheral surface 611a in rank portion 611 is easy the degree for maintaining not leak out at molten resin.Therefore, with previous utilization
The method of insulator molding mould pressing stator core end face is compared, and resin when can inhibit insulator molding escapes to stator core
Periphery.
(5-2)
According to stator 51, the case where periphery of stage portion 611 and the periphery of insulator are same shape in planar observation
Under, in swaging die, for the cavity one of the outer peripheral surface 611a of stage portion 611 chimeric part and the resin filling for insulator
It causes, which is also used as the cavity, therefore, does not increase manufacturing procedure when manufacture mold, not will increase die cost.
In addition, after the molding of insulator 71, the outer peripheral surface 611a of the stage portion 611 of stator core 60 and the ring-type of insulator 71
The outer peripheral surface of portion 71a is coplanar, and therefore, processing quality might as well.
(5-3)
According to stator 51, due to can be used the periphery by means of stage portion 611 by the swaging die of insulator molding mould with
The structure blocked between core model is provided with the end face of the side of stage portion 611 without using mold compresses, therefore, is able to suppress
Resin when insulator forms escapes to the periphery of stator core.Also, according to stator 51, even if utilizing mold compresses stator core 60
An end face, due in other end surface side there are space, do not interfere to mold size has deviation between end face.
(5-4)
According to the manufacturing method of stator 51, as long as in advance by the second electromagnetic plate 602 of the flat shape with stage portion 611
Stacking gets up just to be capable of forming stage portion 611, therefore, easy to manufacture.
(5-5)
According to the manufacturing method of stator 51, since resin when being able to suppress insulator molding escapes to the outer of stator core 60
Week, therefore, using the high reliablity of the motor of stator 51.
(5-6)
According to the manufacturing method of Rotary Compressor 101, resin when being able to suppress insulator molding escapes to stator core
60 periphery.As a result, the cylindrical body portion of Rotary Compressor 101 is fixed in by hot charging or welding in stator core 60
When 11, can prevent " be attached to the resin melting of the periphery of stator core 60 and become rubbish and make piping etc. blocking " as the state of affairs
In possible trouble.
(6) variation
In the present embodiment, as shown in figs. 5 a and 6, in planar observation, the core notch 61a's of stator core 60 is most deep
Region and the outer peripheral surface 611a of stage portion 611 are inconsistent.It is however not limited to this.
Fig. 9 is the plan view of the stator core 60 of variation.In Fig. 9, the bottom of core notch 61a can also be deepened and made
The most deep region of core notch 61a is consistent with the outer peripheral surface 611a of stage portion 611 when planar observation.
In this case, it has the advantage that by the way that the periphery of insulator 71 and insulator 72 is expanded to core notch 61a
Most deep region, so as to ensure winding space.
In addition, in the mode structure of insulator molding mould, since the punch-pin of core notch 61a can will be formed and for step
The die face docking of the chimeric cavity plate outer rim in portion 611, therefore, after resin injection moulding, the outer peripheral surface of insulator 71, stage portion
611 outer peripheral surface and the bottom surface side crest line of core notch 61a become straight line, and processing quality is good.
(7) other structures
(7-1)
In the above-described embodiment, it is said premised on " periphery that the periphery of stator core 60 is greater than insulator 71 "
It is bright, but as long as being that insulator 71 is in the inside not contacted with cylindrical body portion 11, then there can also be the periphery of insulator 71 big
In the part of the periphery of stator core 60.For example, insulator 71 also may be at the barbed portion of core notch 61a.
(7-2)
In the present embodiment, stator core 60 is composition that electromagnetic steel plate stacking is got up, by making in planar observation
The periphery of one or more electromagnetic steel plates is consistent with the periphery of insulator 71, to constitute stage portion 611 from end face.
But stator core 60 is not only to be laminated to get up to constitute by electromagnetic steel plate, is also possible to be shaped to utilize resin will be golden
The press-powder magnetic substance that category Magnaglo combines, so-called press-powder core.
In this case, from end face, specified interval axially insulate so that periphery is more close than outermost circumferential direction in stator core 60
Son 71 direction enter mode form stage portion 611, it is preferred that in planar observation, the periphery of stage portion 611 with
The periphery of insulator 71 is same shape.
Industrial availability
In embodiments, it is illustrated using the stator for the motor for being used for Rotary Compressor, but of the invention
Stator is not limited to Rotary Compressor, also useful to other compressors such as scroll compressor.
Label declaration
11 main parts
16 motors
51 stators
52 rotors
60 stator cores
The end face 60a
61 main parts
61a core notch
71,72 insulator
101 compressors
601 first electromagnetic plates (plate-shaped member, the first electromagnetic steel plate)
602 second electromagnetic plates (plate-shaped member, the second electromagnetic steel plate)
611 stage portions
611a outer peripheral surface (periphery)
Existing technical literature
Patent document
Patent document 1: No. 4936051 bulletins of Japanese Patent Publication No.
Claims (10)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-194416 | 2016-09-30 | ||
| JP2016194416 | 2016-09-30 | ||
| PCT/JP2017/032319 WO2018061701A1 (en) | 2016-09-30 | 2017-09-07 | Stator, method for manufacturing stator, and motor and compressor using stator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109792167A true CN109792167A (en) | 2019-05-21 |
| CN109792167B CN109792167B (en) | 2021-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780060118.5A Active CN109792167B (en) | 2016-09-30 | 2017-09-07 | Stator, method of manufacturing the same, motor and compressor using the same |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6489183B2 (en) |
| CN (1) | CN109792167B (en) |
| WO (1) | WO2018061701A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118432314A (en) * | 2024-07-03 | 2024-08-02 | 珠海凌达压缩机有限公司 | Stator core, motor and compressor |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6900988B2 (en) | 2019-10-15 | 2021-07-14 | ダイキン工業株式会社 | Rotary compressor |
| JP7049620B2 (en) | 2020-03-31 | 2022-04-07 | ダイキン工業株式会社 | Rotary electric machines, compressors, refrigeration equipment, vehicles |
| JP7682465B2 (en) * | 2020-10-09 | 2025-05-26 | ダイキン工業株式会社 | Rotating electrical machinery, compressors, refrigeration equipment, vehicles |
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| JP2010068699A (en) * | 2008-09-12 | 2010-03-25 | Fanuc Ltd | Electric motor equipped with fitting unit for combining stator core and end covers |
| US20100296950A1 (en) * | 2008-01-24 | 2010-11-25 | Daikin Industries, Ltd. | Compressor |
| CN102113196A (en) * | 2008-08-07 | 2011-06-29 | 大金工业株式会社 | Stator, motor, and compressor |
| JP2013158095A (en) * | 2012-01-27 | 2013-08-15 | Mitsubishi Electric Corp | Stator of rotary electric machine and manufacturing method of the same |
| JP2015109783A (en) * | 2013-12-06 | 2015-06-11 | 日立オートモティブシステムズ株式会社 | Rotary electric machine |
| JP2016086508A (en) * | 2014-10-24 | 2016-05-19 | 株式会社三井ハイテック | Armature core and method of manufacturing armature core |
| JP2016149823A (en) * | 2015-02-10 | 2016-08-18 | ダイキン工業株式会社 | Stator, motor and compressor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3801132B2 (en) * | 2002-12-26 | 2006-07-26 | 三菱電機株式会社 | Electric motor, refrigeration / air conditioner, and electric motor manufacturing method |
| JP5363255B2 (en) * | 2009-09-18 | 2013-12-11 | 株式会社ミツバ | Stator manufacturing method and stator |
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2017
- 2017-09-07 JP JP2017171704A patent/JP6489183B2/en active Active
- 2017-09-07 WO PCT/JP2017/032319 patent/WO2018061701A1/en active Application Filing
- 2017-09-07 CN CN201780060118.5A patent/CN109792167B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100296950A1 (en) * | 2008-01-24 | 2010-11-25 | Daikin Industries, Ltd. | Compressor |
| CN102113196A (en) * | 2008-08-07 | 2011-06-29 | 大金工业株式会社 | Stator, motor, and compressor |
| JP2010068699A (en) * | 2008-09-12 | 2010-03-25 | Fanuc Ltd | Electric motor equipped with fitting unit for combining stator core and end covers |
| JP2013158095A (en) * | 2012-01-27 | 2013-08-15 | Mitsubishi Electric Corp | Stator of rotary electric machine and manufacturing method of the same |
| JP2015109783A (en) * | 2013-12-06 | 2015-06-11 | 日立オートモティブシステムズ株式会社 | Rotary electric machine |
| JP2016086508A (en) * | 2014-10-24 | 2016-05-19 | 株式会社三井ハイテック | Armature core and method of manufacturing armature core |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118432314A (en) * | 2024-07-03 | 2024-08-02 | 珠海凌达压缩机有限公司 | Stator core, motor and compressor |
| CN118432314B (en) * | 2024-07-03 | 2024-10-18 | 珠海凌达压缩机有限公司 | Stator core, motor and compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6489183B2 (en) | 2019-03-27 |
| WO2018061701A1 (en) | 2018-04-05 |
| CN109792167B (en) | 2021-08-10 |
| JP2018061420A (en) | 2018-04-12 |
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