CN108475963A - Closed-type compressor and refrigerating circulatory device - Google Patents
Closed-type compressor and refrigerating circulatory device Download PDFInfo
- Publication number
- CN108475963A CN108475963A CN201680079554.2A CN201680079554A CN108475963A CN 108475963 A CN108475963 A CN 108475963A CN 201680079554 A CN201680079554 A CN 201680079554A CN 108475963 A CN108475963 A CN 108475963A
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- China
- Prior art keywords
- counterweight
- counterweight part
- iron core
- closed
- rotor
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
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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
- H02K1/22—Rotating parts of the magnetic circuit
-
- 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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/04—Balancing means
Abstract
Closed-type compressor has the motor part and compression mechanical part for being contained in closed shell.Motor part includes rotor and stator, and rotor has：Iron core has the multiple permanent magnets for the inside for being embedded to the multiple electromagnetic steel plates being layered on top of each other；And counterweight, it is set to the end face opposite with compression mechanical part of iron core.Counterweight is set to the end face of iron core, has and is made of nonmagnetic material and cricoid first counterweight part with balance hole and is laminated in the first counterweight part and is made of magnetic substance and cricoid second counterweight part with balance hole.The inner peripheral of first counterweight part and outer peripheral edge, the inner peripheral of the second counterweight part and outer peripheral edge have the shape of mutually the same size.
Description
Technical field
Embodiments of the present invention are related to closed-type compressor and refrigerating circulatory device.
Background technology
The closed-type compressor used in the refrigerating circulatory device as air conditioner has the electricity for being contained in closed shell
Motivation portion and compression mechanical part.Motor part has the stator for the inner peripheral surface for being fixed on closed shell and via rotary shaft
And the rotor linked with compression mechanical part.Rotor is coaxially located at the inside of stator, and in the peripheral surface of the rotor and determines
Narrow air-gap (motor gap) is formed between the inner peripheral surface of son.
In this closed-type compressor, for the viewpoint of energy-saving or environmental protection etc., it is desirable that the height of motor part
Efficient activity and resource-saving.As the countermeasure, in recent years, it is provided with the close of the rotor in motor part using permanent magnet
Closed type compressor.The rotor of permanent magnet has iron core that multiple electromagnetic steel plates are laminated and is embedded in the iron core
Multiple permanent magnets in portion, and it is configured with end plate and counterweight in the end face of the iron core.
End plate is the element for preventing permanent magnet from falling off from iron core.Counterweight for permanent axis of rotation rotation and
Stablize the working condition of rotor and compressor entirety.
If according to the rotor of previous permanent magnet, counterweight is by by multiple silicon steel plates after punch press process
Stacking and constitute.Keep the silicon steel plate of stacking integrated with iron core using rivet and a part for end face from iron core is prominent
Go out.
Existing technical literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 4-185247 bulletins
Invention content
Problems to be solved by the invention
If counterweight is protruded from the end face of iron core, can not avoid generating larger air resistance during the rotation of the rotor
Power.The windage loss of rotor increases as a result, will produce energy loss.Further, since counterweight is repeatedly subjected to windage loss
Counterweight, is fixed on the rivet fatigue damage of iron core by caused resistance, and counterweight is possible to be detached from from iron core.
Due to formed counterweight silicon steel plate be magnetic substance, from embedment iron core permanent magnet generate magnetic flux to
The axial leakage of rotor.As a result, effective interlinkage flux between the stator in the outside for being configured at rotor is reduced, it is difficult to play
The performance that motor part is required.
In addition to this, if compression mechanical part is driven by motor part, it is stored in the oil storage of the interior bottom of closed shell
Lubricating oil in portion is drawn by compression mechanical part.The lubricating oil of absorption is supplied to the various slippers of compression mechanical part.At this point,
Lubricating oil is stirred from rotor counterweight outstanding, is increased so as to cause to the amount of the external lubricating oil being discharged of closed shell
Add.
It is an object of the invention to obtain a kind of closed-type compressor, can inhibit as caused by end plate and counterweight
Windage loss and the performance raising that motor part is realized by the effective interlinkage flux of increase, and can be by end plate and balance
The shape simplification of counterweight reduces cost.
Means for solving the problems
The closed-type compressor of present embodiment has：Closed shell；Compression mechanical part, in the inside of the closed shell
Compress refrigerant；And motor part, it is contained in the closed shell, and drive the compression mechanical part.The motor part
Include the rotor linked with the compression mechanical part and is fixed on the closed shell in the state of surrounding the rotor
Stator.The rotor has：Iron core has the multiple permanent magnets for the inside for being embedded to the multiple electromagnetic steel plates being stacked on one another；With
And counterweight, it is set to the end face opposite with the compression mechanical part of the iron core.
The counterweight has：Cricoid first Weight plate of balance hole, setting are made of and had nonmagnetic material
In the end face of the iron core；And be made of magnetic substance and cricoid second Weight plate with balance hole, and it is described
First counterweight board stacking, the inner peripheral of first Weight plate and outer peripheral edge, the inner peripheral of second Weight plate and outer
Periphery has the shape of mutually the same size.
Description of the drawings
Fig. 1 is the sectional view of the closed-type compressor used in the refrigerating circulatory device of first embodiment.
Fig. 2A is the side view of the iron core of the rotor used in the first embodiment.
Fig. 2 B are the when indicating the F2B-F2B lines cut-out along Fig. 2A positioned at the second counterweight of the lower end of iron core
The vertical view of the shape of end plate.
Fig. 2 C are the when indicating the F2C-F2C lines cut-out along Fig. 2A positioned at the second counterweight of the lower end of iron core
The vertical view of the shape of one Weight plate.
Fig. 2 D are the when indicating the F2D-F2D lines cut-out along Fig. 2A positioned at the second counterweight of the lower end of iron core
The vertical view of the shape of two Weight plates.
Fig. 2 E are the when indicating the F2E-F2E lines cut-out along Fig. 2A positioned at the second counterweight of the lower end of iron core
The vertical view of the shape of two end plates.
Fig. 3 is the vertical view of the F3-F3 lines along Fig. 2A.
Fig. 4 A are the vertical view of the rotor of second embodiment.
Fig. 4 B are the sectional view of the rotor of the Aa-O-Ab lines along Fig. 4 A.
Fig. 4 C are the upward view of the rotor of second embodiment.
Specific implementation mode
[first embodiment]
Hereinafter, being illustrated to first embodiment with reference to attached drawing.
Fig. 1 shows the refrigeration cycle R of refrigerating circulatory device 1.Refrigeration cycle R has closed-type compressor K, dissipates
Hot device 2, expansion device 3, the evaporator 4 as heat dump and liquid storage device 5 are used as main element.Constitute refrigeration cycle
The various element of R is in series via the refrigerant pipe P connections for refrigerant circulation.
Refrigerant used in refrigeration cycle R is, for example, HFC classes refrigerant, HFO classes refrigerant, HC (hydrocarbon) class refrigeration
Agent or carbon dioxide (CO2) refrigerant.
Closed-type compressor K is so-called vertical rotary compressor, have closed shell 10, motor part 11 and
Compression mechanical part 12 is used as main element.Motor part 11 is contained in the middle part in closed shell 10.Compression mechanical part 12
It is contained in the lower part in closed shell 10.Motor part 11 links via rotary shaft 13 with compression mechanical part 12.
Motor part 11 is, for example, the brushless DC synchronous motors by Driven by inverter.Motor part 11, which has, to be fixed on
The cylindric stator 14 of the inner peripheral surface of closed shell 10 and the rotor 15 surrounded by stator 14.
It is formed with oil storage department 16 in the bottom of closed shell 10.It is stored with lubricating oil in oil storage department 16.As lubricating oil,
The single oil or miscella of such as polyol ester oil, ethers oil, mineral oil, alkylbenzene oil, PAG oil can be used.
As shown in Figure 1, compression mechanical part 12 is impregnated in the lubricating oil stored in oil storage department 16.Compression mechanical part 12 has
Standby cylinder 18.Cylinder 18 is inserted into the inside of closed shell 10 and the peripheral surface of the cylinder 18 is fixed on the inner peripheral surface of closed shell 10.
Base bearing 19 is installed on the upper surface of cylinder 18.Also, supplementary bearing 20 is installed on the lower surface of cylinder 18.Base bearing 19 with
And supplementary bearing 20 blocks the inside diameter of cylinder 18.The space structure impaled by the inside diameter of cylinder 18, base bearing 19 and supplementary bearing 20
At cylinder chamber S.Cylinder chamber S is connect via the suction line 17 of the part as refrigerant pipe P with liquid storage device 5.
Rotary shaft 13 is supported to rotate freely by base bearing 19 and supplementary bearing 20, and is coaxially located across close
On the plumb line V1 at the center of closed shell body 10.Base bearing 19 rotatably supports the middle part of rotary shaft 13.Supplementary bearing 20
The lower end of rotary shaft 13 is rotatably supported.Also, rotary shaft 13 has eccentric part 13a.Eccentric part 13a is located at main shaft
It holds between 19 and supplementary bearing 20, and is contained in cylinder chamber S.
Cricoid roll sleeve (roller) 21 is chimeric with the peripheral surface of eccentric part 13a.When rotary shaft 13 rotates, roll sleeve 21 exists
The inside of cylinder chamber S carries out eccentric motion.As a result, a part for the peripheral surface of roll sleeve 21 in a manner of it can slide with cylinder chamber S
Inner circumferential brought into linear contact.
Cylinder 18 has guiding groove (not shown).Guiding groove linearly extends along the radial of cylinder 18, and one end is in cylinder chamber S
Opening.Slide plate (not shown) is contained in guiding groove in which can move back and forth.Slide plate has the front end of arc-shaped bend, the front end
The peripheral surface of roll sleeve 21 is pressed against in a manner of it can slide.
Slide plate collaborates with roll sleeve 21 and cylinder chamber S is divided into inhalation area and constricted zone, and slide plate follows roll sleeve
21 eccentric motion and moved to the directions outstanding cylinder chamber S or from the direction decorporated in cylinder chamber S.As a result, the suction of cylinder chamber S
The volume for entering region and constricted zone changes, and the vapor phase refrigerant being drawn into cylinder chamber S from suction line 17 is compressed.
As shown in Figure 1, muffler 22 is installed on base bearing 19.The covering of muffler 22 is set to base bearing 19
Discharge valve system 23.It is discharged when the vapor phase refrigerant after valve system 23 pressurizes in cylinder chamber S reaches defined pressure and opens.By
This, the vapor phase refrigerant of the high temperature and pressure after pressurizeing in cylinder chamber S is discharged to the inside of muffler 22.
The vapor phase refrigerant of high temperature and pressure is disposed through the gas guiding between the various parts for constituting motor part 11
Path and the top for being directed to closed shell 10, and it is directed to radiator 2 via refrigerant pipe P.
The vapor phase refrigerant of the high temperature and pressure of guide radiator 2 is for example condensed by the heat exchange with air, variation
For the liquid phase refrigerant of high pressure.The liquid phase refrigerant of high pressure is depressurized during across expansion device 3 and changes as low pressure
Gas-liquid two-phase cold-producing medium.Gas-liquid two-phase cold-producing medium is captured heat from air during across evaporator 4 and is evaporated, and changes
For the vapor phase refrigerant of low-temp low-pressure.Across evaporator 4 air due to the evaporation latent heat of liquid phase refrigerant it is cooled, become
Cold wind is simultaneously transported to the place that should for example carry out air conditioning (refrigeration).
It is directed to liquid storage device 5 across the vapor phase refrigerant of evaporator 4.Complete liquid phase refrigeration is not evaporated in evaporator 4
Agent detaches in liquid storage device 5 with vapor phase refrigerant.The vapor phase refrigerant detached from liquid phase refrigerant is inhaled into via suction line 17
The cylinder chamber S of closed-type compressor K.The vapor phase refrigerant for being inhaled into cylinder chamber S is compressed to the gas phase refrigeration of high temperature and pressure again
Agent is simultaneously discharged from closed shell 10 to refrigerant pipe P, repeats above-mentioned effect.
Next, the motor part 11 to closed-type compressor K is described in detail.
Stator 14 has the yoke for the inner peripheral surface for being fixed on closed shell 10 and is formed in the multiple of the inner peripheral surface of yoke
Tooth.The quantity of tooth can be indicated by 3n.In the present embodiment, by being set as n=3 to which the quantity of tooth is set as 9.
Further, tooth is protruded from the peripheral surface of inner circumferential towards the rotor 15 of yoke.Tooth exists in the circumferential direction of stator 14
Compartment of terrain arranges, and each tooth is wound in line set.
As shown in Fig. 2, rotor 15 has iron core 25.Iron core 25 is, for example, by will be multiple in the axial direction of closed shell 10
Electromagnetic steel plate is stacked on one another to constitute.The central part of iron core 25 is coaxially fixed on the top of rotary shaft 13.Iron core 25
Peripheral surface is opposite with the inner peripheral surface of stator 14 across minimum air-gap.
The number of magnetic poles of rotor 15 can be indicated by 2n.The integer that n is 2 or more.In the present embodiment, by being set as n
=3 by the number of magnetic poles of rotor 15 so that be set as 6.Specifically, as shown in figure 3, the permanent magnet 26 of six plates is embedded to iron core
25 inside.Six permanent magnets 26 are inserted into six magnet accepting holes 27 of the peripheral part for being set to iron core 25 respectively.
Further, six permanent magnets 26 with the circumferential posture configuration along iron core 25 in the peripheral part of iron core 25 and
There are compartment of terrain arrangements in the circumferential direction of iron core 25.
As shown in Figure 1, rotor 15 has the first counterweight 30A and the second counterweight 30B.First counterweight
The rotation for the rotary shaft 13 that 30A and the second counterweight 30B is generated by offsetting the eccentric motion with roll sleeve 21 is uneven
It weighs, to reduce the vibration of closed-type compressor K.First counterweight 30A is configured at the upper end of iron core 25.Second balance is matched
Weight 30B is configured at the lower end of the iron core 25 opposite with compression mechanical part 12.
As shown in Figure 2 A, the second counterweight 30B have first end plate 31, the first counterweight part 32, the second counterweight part 33 with
And second end plate 34 be used as main element.First end plate 31 is made of the plank of nonmagnetic material.First counterweight part 32 is to pass through
The plank of multiple nonmagnetic materials is stacked on one another to constitute.Second counterweight part 33 be by by the plank of multiple magnetic substances each other
It is laminated to constitute.Second end plate 34 is made of the plank of magnetic substance.
First end plate 31, the first counterweight part 32, the second counterweight part 33 and the second end plate 34 are stacked on one another, and for example logical
It crosses the fastening for having used rivet and ca(u)lk processing is integrally attached to the lower face of iron core 25.
Specifically, first end plate 31 is Chong Die with the lower face of iron core 25.As shown in Figure 2 B, first end plate 31 is formed as having
There are the annular shape of circular inner peripheral n and circular outer peripheral edge m.Four rivet hole 36a are set to first end plate 31.Rivet hole
There are compartment of terrain arrangements in the circumferential direction of first end plate 31 by 36a.In the present embodiment, four rivet hole 36a will be will pass through rotation
The central axis C1 for turning the center of part 15 arranges the mode of two rivet hole 36a with being clipped in the middle, and is configured to relative to central shaft
The symmetrical position relationships of line C1.
Oil return hole 37a and balance hole 38 are set to first end plate 31.Oil return hole 37a and balance hole 38 are set to by
Mandrel line C1 is clipped in the middle position toward each other.Oil return hole 37a has longer along the circumferential transverse direction of first end plate 31
Opening shape.Balance hole 38 is more than oil return hole 37a and is in the opening shape of arc-shaped bend with the circumferential direction along first end plate 31.
Further, balance hole 38 is open compared with the outer peripheral edge m with first end plate 31 closer to the position of inner peripheral n.
If Fig. 3 is most shown clearly in, the balance hole 38 of first end plate 31 and two magnet accepting holes for being set to iron core 25
27 separation.Therefore, for the lower face of permanent magnet 26 for being inserted into magnet accepting hole 27, also with not Chong Die with balance hole 38
Mode completely disengage balance hole 38.
The lower face of permanent magnet 26 with balance hole 38 without being kept completely separate, a part for the lower face of permanent magnet 26
It can expose in balance hole 38.In addition to this, balance hole 38 is not essential element, can also be omitted from first end plate 31.
As shown in Figure 2 C, first counterweight part 32 adjacent with first end plate 31 be formed to have circular inner peripheral n and
The annular shape of circular outer peripheral edge m.As shown in Figure 2 D, second counterweight part 33 adjacent with the first counterweight part 32 is formed to have circle
The annular shape of the inner peripheral n of shape and circular outer peripheral edge m.The geomery of first counterweight part 32 and the second counterweight part 33
It is identical as first end plate 31.
Four rivet hole 36b and oil return hole 37b are set to the first counterweight part 32.Rivet hole 36b and oil return hole 37b with
The rivet hole 36a and oil return hole 37a of first end plate 31 are of similar shape size, and are set to and first end plate 31
Rivet hole 36a and the consistent positions oil return hole 37a.
Similarly, four rivet hole 36c and oil return hole 37c are set to the second counterweight part 33.Rivet hole 36c and oil return
The rivet hole 36b and oil return hole 37b of hole 37c and the first counterweight part 32 are of similar shape size, and be set to
The rivet hole 36b and oil return hole 37b of first counterweight part 32 consistent position.
In turn, it is respectively arranged with balance hole 39 in the first counterweight part 32 and the second counterweight part 33.First counterweight part 32
Balance hole 39 has the opening shape that arc-shaped is bent into along the circumferential direction of the first counterweight part 32.The balance hole of second counterweight part 33
39 have the opening shape that arc-shaped is bent into along the circumferential direction of the second counterweight part 33.First counterweight part 32 and the second counterweight part
33 balance hole 39 is consistent with each other and is of the same size.
As shown in figure 3, the inner peripheral of each balance hole 39 is consistent with the inner peripheral of balance hole 38 of first end plate 31.With this phase
It is right, the outer peripheral edge of each balance hole 39 compared with the outer peripheral edge of the balance hole 38 of first end plate 31 to along the first counterweight part 32 and
Deviate in the radial outside of second counterweight part 33.In other words, balance hole 39 has the opening area bigger than balance hole 38, balance hole
39 outer peripheral portion is closed by first end plate 31.
As shown in Figure 2 E, the second end plate 34 is formed to have the annulus of circular inner peripheral n and circular outer peripheral edge m
Shape.The geomery of second end plate 34 is identical as the first counterweight part 32 and the second counterweight part 33.
Four rivet hole 36d and oil return hole 37d are set to the second end plate 34.Rivet hole 36d and oil return hole 37d have
Geomery identical with the rivet hole 36a of first end plate 31 and oil return hole 37a, and be set to and first end plate 31
Position consistent rivet hole 36a and oil return hole 37a.In addition to this, the second end plate 34 enclosed balance hole 38,39 from below.
As shown in Figure 2 A, first end plate 31, the first counterweight part 32, the second counterweight part 33 and the second end plate 34 have following
Shape, which is positive round with the diameter diameter below in iron core 25 or by the shape after the part excision of positive round
Shape.First end plate 31,34 respective outer peripheral edge m of the first counterweight part 32, the second counterweight part 33 and the second end plate center be located at
On the central axis C1 at the center of rotor 15.
In contrast, first end plate 31,34 respective inner circumferential of the first counterweight part 32, the second counterweight part 33 and the second end plate
Edge n has two curve parts by being bent into arc-shaped and by the ellipse of link between curve part two straight line portion defineds
Round shape.
Specifically, as shown in figure 3, the rotation for the second counterweight 30B being placed through on the central axis C1 of rotor 15
The straight line X-X for turning center O1 and the circumferential center 39a along balance hole 39, relative to the first counterweight part 32 and second
The inner peripheral n of counterweight part 33 intersects along two radial positions.If by the intersection point of straight line X-X and inner peripheral n be set as n1 with
And n2, then intersection point n1 with the center O2 between intersection point n2 compared with rotation center O1 to the direction of balance hole 39 deviate.
Therefore, in the first counterweight part 32 and the second counterweight part 33, from intersection point n1 to outer peripheral edge m along straight line X-X
Distance, compared at a distance from straight line X-X with from intersection point n2 to outer peripheral edge m, shorten center O2 and deviate rotation center O1
Amount.Therefore, as shown in figure 3, being provided with the face of the first counterweight part 32 of balance hole 39 and the lower half portion of the second counterweight part 33
Product is than rotation center O1 is clipped in the middle and positioned at the upper half of the first counterweight part 32 of opposite side and the second counterweight part 33
Partial area is narrow.
In turn, due to the presence of balance hole 39, the lower half portion of the first counterweight part 32 and the second counterweight part 33 it is effective
Area is further reduced, and the amount of unbalance of the top half relative to the first counterweight part 32 and the second counterweight part 33 obtains fully
Ensure.
First end plate 31, the first counterweight part 32, the second counterweight part 33 and the second end plate 34 inner peripheral n shape not
It is confined to ellipse, as long as can ensure the amount of unbalance of the second counterweight 30B, inner peripheral n for example can also be positive round.
As the nonmagnetic material for constituting first end plate 31 and the first counterweight part 32, such as stainless-steel sheet has been used.Make
To constitute the magnetic substance of the second counterweight part 33 and the second end plate 34, such as electromagnetic steel plate has been used.
The plate thickness of electromagnetic steel plate is than electromagnetic steel plate thickness used in iron core 25 used in second counterweight part 33.First counterweight
Stainless-steel sheet used in portion 32 has the plate thickness with electromagnetic steel plate same degree used in the second counterweight part 33.
The precision of the plate thickness of electromagnetic steel plate is higher, therefore can improve the precision as counterweight.According to this embodiment party
Formula, the plate thickness of electromagnetic steel plate used in iron core 25 are 0.35mm, and the plate thickness of electromagnetic steel plate used in the second counterweight part 33 is
0.5mm。
Further, the silicon compared with electromagnetic steel plate used in iron core 25 of electromagnetic steel plate used in the second counterweight part 33 contains
The amount of having is less, and proportion is larger.Specifically, the density of electromagnetic steel plate used in the second counterweight part 33 is 7.8kg/cm3.With this
Relatively, the density of electromagnetic steel plate used in iron core 25 is 7.6kg/cm3。
Air-gap of the difference of the diameter of the diameter of iron core 25 and the second counterweight 30B between rotor 15 and stator 14 with
In the case of lower, the thickness of the first counterweight part 32 can be set as to 2 times to 3 times or more of air-gap.
In the present embodiment, the nonmagnetic material using as stainless-steel sheet as constitute first end plate 31 and first
The material of counterweight part 32, the magnetic substance using as electromagnetic steel plate is as the material for constituting the second counterweight part 33 and the second end plate 34
Material, and these different types of materials are punched with identical mold.
The plate thickness of nonmagnetic material is set as L1, when the plate thickness of magnetic substance is set as L2, can be set as meeting following (1)
Formula.
L1-0.1≤L2≤L1+0.1 (mm) ... (1)
Next, the outline of explanation punch process process of one of its manufacturing process when manufacturing the second counterweight 30B.
First, punching processing is implemented to the metal material of sheet, outputs multiple balance holes 38,39 on the metal material.The
The size and shape of the balance hole 39 of the balance hole 38 of end plate 31, the first counterweight part 32 and the second counterweight part 33 are each other not
Together.Therefore, variform a variety of punches and punch die are installed on the progressive die, some punch is selected to be acted.
Later, punching processing is implemented to metal material, it is multiple circular interior being formed with balance hole 38,39 adjoining positions
Periphery n.First end plate 31, the first counterweight part 32, the second counterweight part 33 and the second end plate 34 inner peripheral n size and shape
Shape is common each other, therefore swimmingly can implement to process to metal material.
Later, by metal material implement punching processing, outputed around each inner peripheral n multiple rivet hole 36a,
36b, 36c, 36d and multiple oil return hole 37a, 37b, 37c, 37d.Then, punch press process is implemented to metal material, to surround riveting
Nail hole 36a, 36b, 36c, 36d, oil return hole 37a, 37b, 37c, 37d and balance hole 38,39 mode formed it is multiple circular
Outer peripheral edge m.Rivet hole 36a, 36b, 36c, 36d, oil return hole 37a, 37b, 37c, 37d and outer peripheral edge m are in whole first end plates
31, it is of the same size shape in the first counterweight part 32, the second counterweight part 33 and the second end plate 34, therefore can be smooth
Ground is implemented to process by metal material.
Thereby, it is possible to obtain first end plate 31, the first counterweight part 32, the second counterweight part 33 and the second end plate 34 simultaneously.
The first counterweight 30A positioned at the upper end of rotor 15 has end plate and counterweight part as main element.
The end plate such as nonmagnetic material as stainless-steel sheet forms and with 31 phase of first end plate with the second counterweight 30B
Same geomery.
Counterweight part is, for example, to be constituted by the way that nonmagnetic material as multiple stainless-steel sheets is stacked on one another.Into one
Step, counterweight part have geomery identical with the first counterweight part 32 of the second counterweight 30B.
According to first embodiment, it is located at the end plate and counterweight part of the first counterweight 30A of the upper end of rotor 15
The nonmagnetic material as stainless-steel sheet is constituted respectively.About the second counterweight 30B positioned at the lower end of rotor 15,
The first end plate 31 of the lower face overlapping of the iron core 25 of rotor 15 and the first counterweight part 32 under first end plate 31 by
Nonmagnetic material as stainless-steel sheet is constituted.
Therefore, it is possible to inhibit the magnetic flux that the permanent magnet 26 from embedment iron core 25 generates to be somebody's turn to do to the axial leakage of rotor 15
Magnetic flux flow direction surrounds 14 side of stator of rotor 15.Therefore, effective interlinkage flux between stator 14 increases, and can fully meet
The performance that motor part 11 is required.
Also, rotation more smoothization of rotor 15, can inhibit windage loss, can mitigate the electronic of driving rotor 15
The burden in machine portion 11.
Further, about the second counterweight 30B, first end plate 31, the first counterweight part 32, the second counterweight part 33 and
The inner peripheral n and outer peripheral edge m of two end plates 34 are formed as the annular shape having the same dimensions as each other.Therefore, it is possible to use phase
Same mold carries out punch process to first end plate 31, the first counterweight part 32, the second counterweight part 33 and the second end plate 34.Cause
This, improves the manufacturing of the second counterweight 30B.
In addition to this, a diameter of constant due to the inner peripheral n of the second counterweight 30B, the second counterweight 30B's is interior
Circumferential surface is smooth shape.As a result, second is passed through in the vapor phase refrigerant being discharged from compression mechanical part 12 into closed shell 10
When the inside of counterweight 30B, the second counterweight 30B strong stirrings that vapor phase refrigerant can be inhibited to be rotated.
The vapor phase refrigerant being discharged from compression mechanical part 12 into closed shell 10 is via between rotor 15 and stator 14
Air-gap, the oily access for being set to iron core 25, oil return hole 37a, 37b, 37c, 37d for being set to the second counterweight 30B and
The gas path of navigation for being set to stator 14 is swimmingly oriented to the refrigerant pipe P being connect with the upper end of closed shell 10.
In the state that compression mechanical part 12 works, the lubricating oil stored in the oil storage department 16 of closed shell 10 is stirred
It mixes.The lubricating oil being stirred floating in closed shell 10 as droplet.In the present embodiment, due to the second counterweight
The inner peripheral surface of 30B is smooth shape, therefore can inhibit to generate vortex near inner peripheral surface.Therefore, it is possible to prevent close
The second counterweight 30B that the droplet of the lubricating oil floated in closed shell body 10 is rotated is drawn, to outside closed shell 10
The amount of the lubricating oil of portion's discharge is reduced.
According to the present embodiment, the material more cheap than the first counterweight part 32 can be used as the second counterweight part 33, helped
In the reduction of the cost of the second counterweight 30B.
As shown in Figure 3, it is preferred that in the outer peripheral edge m of the diameter and the second counterweight 30B of the peripheral surface of rotor 15
In the case that the difference G of diameter is less than or equal to the air-gap between rotor 15 and stator 14, the thickness of the first counterweight part 32 is set
It is set to 2 times~3 times or more of air-gap.
I.e., it is known that the magnetic force of permanent magnet 26 and distance square are exported in inverse ratio.It is preferred, therefore, that by not
In the first counterweight part 32 that nonmagnetic material is constituted as rust steel steel plate, such as the thickness of the first counterweight part 32 terminates in air-gap
It 2 times~3 times, is replaced into instead of the stainless-steel sheet of high price after this using magnetic as less expensive electromagnetic steel plate
Second counterweight part 33 of body.Thereby, it is possible to maintain the second counterweight while reducing the cost of the second counterweight 30B
The performance of the script of 30B.
The electromagnetic steel plate of the second counterweight part 33 is constituted since the precision of plate thickness is higher, in the precision for improving counterweight
Aspect is suitable.In the present embodiment, iron core 25 is constituted by the electromagnetic steel plate that plate thickness is 0.35mm, is 0.5mm by plate thickness
Electromagnetic steel plate constitute the second Weight plate 33.The quantity for constituting the electromagnetic steel plate of the second counterweight part 33 as a result, is reduced, and improves second
The manufacturing of counterweight 30B and the cost that the second counterweight 30B can be reduced.
The amount of electromagnetic steel plate silicon compared with electromagnetic steel plate used in iron core 25 used in second counterweight part 33 compared with
Few, proportion is larger.That is, by constituting the second counterweight part 33 by the larger electromagnetic steel plate of proportion, so as to reduce by the second counterweight
The quantity of electromagnetic steel plate used in portion 33.The manufacturing of the second counterweight 30B is further improved as a result, and is contributed to
The reduction of the cost of second counterweight 30B.
In the present embodiment, the first counterweight part 32 will be used for as the stainless-steel sheet of an example of nonmagnetic material.Therefore,
Compared with electromagnetic steel plate, influenced by the hardness of metal material and shearing resistance etc. and the pressworkability that generates not
It is balanced smaller.Therefore, it is possible to improve the pressworkability for using equal dies.
In the present embodiment, the plate thickness of stainless-steel sheet used in the first counterweight part 32 is being set as L1, by second
When the plate thickness of electromagnetic steel plate used in counterweight part 33 is set as L2, it is set as meeting
L1-0.1≤L2≤L1+0.1 (mm)
Relationship.That is, by the way that the difference of the plate thickness of different types of metallic plate to be set as within 0.1 (mm), and to the metal
Plate implements punch process using identical mold, so as to inhibit the expense needed for mold.Further, it increases and is selected as
The degree of freedom when metallic plate of material.
As shown in figure 3, in the balance hole 38 that first end plate 31 is arranged, with the end not with the permanent magnet 26 of embedment iron core 25
The mode that face overlaps is set to the position for deviateing the permanent magnet 26.Thereby, it is possible to use first end plate 31 to prevent permanent magnetic
Iron 26 falls off from iron core 25, and can be to preventing the first end plate 31 that permanent magnet 26 falls off additional as counterweight
Function.
Further, it since first end plate 31 has the function as counterweight concurrently, can reduce for the first counterweight
The quantity of the stainless-steel sheet in portion 32.Therefore, contribute to the reduction of the cost of the second counterweight 30B.
In the present embodiment, if the balance hole 39 is set to the position for deviateing permanent magnet 26 so that the first counterweight part
32 balance hole 39 is not Chong Die with the embedment end face of permanent magnet 26 of iron core 25, then the first counterweight part 32 can be utilized to prevent forever
Long the falling off from iron core 25 of magnet 26.Thereby, it is possible to first end plate 31 is omitted from the second counterweight 30B.
First counterweight part 32 by the plate thickness with the electromagnetic steel plate same degree with the second counterweight part 33 stainless-steel sheet
It constitutes.Therefore, it in the comparison carried out with electromagnetic steel plate, is influenced and is generated by the hardness of metallic plate and shearing resistance etc.
As long as the difference of pressworkability is less than such as brass.This improves the pressworkabilities for using equal dies.
According to the present embodiment, the rotation center O1 of the second counterweight 30B and the circumferential direction along balance hole 39 are passed through
Center 39a straight line X-X, the inner peripheral n relative to the second Weight plate 33 intersects two positions.By straight line X-X with it is interior
When the intersection point of periphery n is set as n1 and n2, intersection point n1 with the center O2 between intersection point n2 compared with rotation center O1 to balance hole
Deviate in 39 direction.As a result, along the distance of the straight line X-X from intersection point n1 to outer peripheral edge m shorter than along from intersection point n2 to periphery
The distance of the straight line X-X of edge m.
As a result, the amount of unbalance of the second counterweight 30B becomes larger, can reliably keep turning when the rotation of rotor 15
The balance of 15 and closed-type compressor K of son.
The oil of the lubricating oil stored in oil storage department 16 of second end plate 34 towards closed shell 10 of second counterweight 30B
Face.Since balance hole being not present in the second end plate 34, the stirring of lubricating oil can be prevented and windage can be inhibited to damage
It loses.
[second embodiment]
Second embodiment is disclosed in Fig. 4 A, Fig. 4 B and Fig. 4 C.
A part for the rotor 15 of second embodiment constitutes different from the first embodiment.Composition in addition to this
It is identical as the first embodiment.Therefore, in this second embodiment, for composition part same as the first embodiment
Identical reference numeral is assigned, and the description thereof will be omitted.
Fig. 4 A are the vertical view of rotor 15, and Fig. 4 B are along the sectional view of the rotor 15 of the Aa-O-Ab lines of Fig. 4 A, Fig. 4 C
For the upward view of rotor 15.As shown in Figure 4A and 4B, four gas vent 25a, embedded hole 25b, four rivet holes 40 and
Single oily access 41 is set to iron core 25.
Embedded hole 25b is the element being fitted into for rotary shaft 13, is located at the position with the central axis C1 coaxials of rotor 15.
Gas vent 25a has the opening shape along the circumferential arc-shaped of iron core 25 and in a manner of surrounding embedded hole 25b in iron
There are compartment of terrain arrangements in the circumferential direction of core 25.Rivet hole 40 is with the rivet hole 36a of the first end plate 31 with the second counterweight 30B
There are compartment of terrain arrangements in the circumferential direction of iron core 25 for corresponding mode.Oily access 41 is between two adjacent rivet holes 40.
Gas vent 25a, rivet hole 40 and oily access 41 penetrate through iron core 25 respectively in axial direction.
The first counterweight 30A positioned at the upper end of iron core 25 have iron core 25 upper surface stacking end plate 43,
And the Weight plate 44 being overlapped on end plate 43.The nonmagnetic material as stainless-steel sheet of end plate 43 constitute and be formed as with
The 31 identical size of first end plate of second counterweight 30B.Weight plate 44 is by will be non-as multiple stainless-steel sheets
Magnetic substance is stacked on one another to constitute, and is formed to have size identical as the first counterweight part 32 of the second counterweight 30B
Annular shape.Therefore, there is the shape of circular ring shape, the shape of the circular ring shape to have circular inner circumferential for end plate 43 and counterweight part 44
Edge n and outer peripheral edge m.
In turn, end plate 43 has balance hole 45 and four rivet holes 46.Balance hole 45 has the circumferential direction along end plate 43 curved
Song at arc-shaped opening shape.Rivet hole 46 is set to and the rivet hole 40 in such a way that the rivet hole 40 with iron core 25 communicates
Corresponding position.
Counterweight part 44 has balance hole 47 and four rivet holes 48.Balance hole 47 has the circumferential skewing along Weight plate 44
Opening shape, and be set to the position consistent with the balance hole of end plate 43 45.According to the present embodiment, balance hole 47 has
The outer peripheral portion of the opening shape bigger than balance hole 45, the balance hole 47 is closed by end plate 43.Rivet hole 48 with end plate 43
The mode that rivet hole 46 communicates is set to position corresponding with the rivet hole 46.
As shown in Fig. 4 A and Fig. 4 C, the gas vent 25a and embedded hole 25b of iron core 25 are the first counterweight 30A's
The inside opening of the inner peripheral n of the second end plate 34 of the inside of the inner peripheral n of counterweight part 44 and the second counterweight 30B.
In other words, gas vent 25a is across the inside and second of the inner peripheral n of the Weight plate 44 of the first counterweight 30A
The inside of the inner peripheral n of the second end plate 34 of counterweight 30B and with closed shell 10 in be connected to.In the present embodiment, from
The distance of the outer peripheral edge of gas vent 25a to the rotation center of rotor 15 is set as and the radius of the inner peripheral n of end plate 44 and
The radius of the inner peripheral n of two end plates 34 is equal.
As shown in Figure 4 A, balance hole of the upper end of the oily access 41 of iron core 25 in the Weight plate 44 of the first counterweight 30A
47 central portion opening.The upper end of oily access 41 has circular opening shape.
The lower end of the oily access 41 of iron core 25 is connected to oil return hole 37a, 37b, 37c, 37d of the second counterweight 30B.Cause
This, oil return hole 37a, 37b, 37c, 37d of the second counterweight 30B is mutually led to via oily access 41 as the first counterweight 30A
Upper surface counterweight part 44 on.
According to second embodiment, it can make to remain in the lubricating oil of the upper surface of the first counterweight 30A from iron core 25
Oily access 41 oil storage of closed shell 10 is rapidly returned to via oil return hole 37a, 37b, 37c, 37d of the second counterweight 30B
Portion 16.Therefore, it is possible to prevent the lubricating oil stored in oil storage department 16 liquid level reduction.
In said embodiment, the closed-type compressor K of 1 cylinder type is illustrated, but present embodiment is not limited to
This, such as also can equally implement in the closed-type compressor of 2 cylinder types.
Further, closed-type compressor also can not specifically for by the longitudinal vertical closed-type compressor K of rotary shaft 13
Suitable for for example by the horizontal horizontal closed-type compressor of rotary shaft.
Present embodiment is this concludes the description of, above-mentioned embodiment provides as an example, it is not intended to limit embodiment
Range.The new embodiment can be implemented in various other forms, and can be carried out in the range of not departing from purport various
Omission, displacement, change.These embodiments and modifications thereof are contained in the scope and summary of invention, and are also contained in right
The range of invention and its equalization that claim is recorded.
Reference sign
10 ... closed shells, 11 ... motor parts, 12 ... compression mechanical parts, 14 ... stators, 15 ... rotors, 25 ... iron cores,
26 ... permanent magnets, 30B ... counterweights (the second counterweight), 32 ... first counterweight parts, 33 ... second counterweight parts, 39,
45 ... balance holes, n ... inner peripherals, the outer peripheral edges m ..., K ... closed-type compressors, 2 ... radiators, 3 ... expansion devices, 4 ... evaporations
Device, P ... refrigerant pipes, R ... refrigeration cycles.
Claims (7)
1. a kind of closed-type compressor, has：
Closed shell；
Compression mechanical part, in the internal compression refrigerant of the closed shell；And
Motor part is contained in the closed shell, and drives the compression mechanical part, wherein
The motor part includes the rotor linked with the compression mechanical part and is fixed in the state of surrounding the rotor
In the stator of the closed shell, the rotor has：Iron core has more inside the multiple electromagnetic steel plates for being embedded to and being stacked on one another
A permanent magnet；And counterweight, and the end face opposite with the compression mechanical part for being set to the iron core,
The counterweight has：
Cricoid first counterweight part that balance hole is made of and had nonmagnetic material, is set to the end face of the iron core；
And
Cricoid second counterweight part that balance hole is made of and had magnetic substance is laminated with first counterweight part,
The inner peripheral of first counterweight part and outer peripheral edge, the inner peripheral of second counterweight part and outer peripheral edge have each other
The shape of identical size.
2. closed-type compressor as described in claim 1, wherein
First counterweight part is made of stainless-steel sheet, the electricity of second counterweight part by plate thickness than constituting the iron core
The electromagnetic steel plate of magnet steel plate thickness is constituted.
3. closed-type compressor as claimed in claim 2, wherein
The electromagnetic steel plate of second counterweight part is constituted compared with the electromagnetic steel plate for constituting the iron core, proportion is larger.
4. closed-type compressor as described in claim 1, wherein
The counterweight is also equipped with the cricoid end plate being made of nonmagnetic material and with balance hole, the end plate setting
Between the end face of the iron core and first counterweight part, and the balance hole of the end plate be set to it is described permanent
The completely nonoverlapping position in an end face of magnet.
5. closed-type compressor as described in claim 1, wherein
The balance hole of the balance hole of first counterweight part and second counterweight part, which has, is bent to difference
Along the shape of the circumferential arc-shaped of first counterweight part and second counterweight part,
Across the circumferential center of the rotation center of first counterweight part and second counterweight part and the balance hole
Straight line, relative to the inner peripheral of first counterweight part and second counterweight part in the radial direction along the inner peripheral
Two positions intersect, and the center of two intersection points that the straight line intersects with the inner peripheral is relative to the rotation center
Deviate to the direction of the balance hole.
6. closed-type compressor as described in claim 1, wherein
There is the rotor the oily access for penetrating through the iron core and being open in the upper surface of the rotor, the counterweight to set
It is placed in the lower face of the iron core, and with the oil return hole being connected to the oily access.
7. a kind of refrigerating circulatory device, has：
Refrigerant pipe is connect for refrigerant circulation, and with radiator, expansion device and evaporator；And
Described in any one of claim 1~6 being connect with the refrigerant pipe between the radiator and the evaporator
Closed-type compressor.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-012380 | 2016-01-26 | ||
| JP2016012380 | 2016-01-26 | ||
| PCT/JP2016/085816 WO2017130565A1 (en) | 2016-01-26 | 2016-12-01 | Hermetic-type compressor and refrigeration cycle apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108475963A true CN108475963A (en) | 2018-08-31 |
| CN108475963B CN108475963B (en) | 2020-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680079554.2A Active CN108475963B (en) | 2016-01-26 | 2016-12-01 | Hermetic compressor and refrigeration cycle device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6524268B2 (en) |
| CN (1) | CN108475963B (en) |
| WO (1) | WO2017130565A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111917234A (en) * | 2020-08-10 | 2020-11-10 | 广东威灵电机制造有限公司 | Rotor dynamic balance correction method, rotor and motor |
| CN114450488A (en) * | 2019-11-13 | 2022-05-06 | 日立江森自控空调有限公司 | Compressor and air conditioner |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6887404B2 (en) | 2018-07-13 | 2021-06-16 | ミネベアミツミ株式会社 | motor |
| WO2020057822A1 (en) | 2018-09-17 | 2020-03-26 | Arcelik Anonim Sirketi | A hermetic compressor weight balancing rotor |
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| JP5858076B2 (en) * | 2014-03-20 | 2016-02-10 | 株式会社富士通ゼネラル | Compressor motor rotor |
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- 2016-12-01 CN CN201680079554.2A patent/CN108475963B/en active Active
- 2016-12-01 JP JP2017563723A patent/JP6524268B2/en active Active
- 2016-12-01 WO PCT/JP2016/085816 patent/WO2017130565A1/en active Application Filing
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| JPH10318132A (en) * | 1997-05-22 | 1998-12-02 | Matsushita Refrig Co Ltd | Erectrically driven compressor |
| JP2000287424A (en) * | 1999-03-30 | 2000-10-13 | Sanyo Electric Co Ltd | Rotor of rotary compressor and manufacture thereof |
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| CN114450488A (en) * | 2019-11-13 | 2022-05-06 | 日立江森自控空调有限公司 | Compressor and air conditioner |
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| CN111917234B (en) * | 2020-08-10 | 2021-11-30 | 广东威灵电机制造有限公司 | Rotor dynamic balance correction method, rotor and motor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017130565A1 (en) | 2017-08-03 |
| JP6524268B2 (en) | 2019-06-05 |
| CN108475963B (en) | 2020-06-23 |
| JPWO2017130565A1 (en) | 2018-08-09 |
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