CN201810512U - Enclosed compressor and refrigeration cycle device - Google Patents
Enclosed compressor and refrigeration cycle device Download PDFInfo
- Publication number
- CN201810512U CN201810512U CN2010201276105U CN201020127610U CN201810512U CN 201810512 U CN201810512 U CN 201810512U CN 2010201276105 U CN2010201276105 U CN 2010201276105U CN 201020127610 U CN201020127610 U CN 201020127610U CN 201810512 U CN201810512 U CN 201810512U
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- Prior art keywords
- stator
- iron core
- recess
- yoke portion
- seal container
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Abstract
The utility model discloses an enclosed compressor. In an enclosed container with an exhaust pipe arranged at one end, an electromotor part consisting of a stator and a rotor is contained in the end of the enclosed container; and a compression mechanism part driven by the electromotor part via a rotation shaft is contained in the other end of the enclosed container. The enclosed compressor is characterized in that: the stator of the electromotor part is a concentrated winding stator with an iron core and a coil; the iron core comprises an annular yoke part fixed on the inner circumferential surface of the enclosed container and a plurality of tooth parts formed from the yoke part to the center; the coil is separated from an insulating member and wound on the tooth parts of the iron core; in the yoke part, recess parts are arranged on a plurality of parts on the outer circumferential surface opposite to the tooth part; the recess parts are formed by a pair of curved surfaces protruding outwards, and a surface jointing the curved surfaces; and air channels are formed between the recess parts and the inner circumferential surface of the enclosed container.
Description
Technical field
The utility model relates to a kind of hermetic type compressor and is assembled with the refrigeration cycle of this hermetic type compressor (refrigerating cycle) device, can prevent from the lubricant oil that compression mechanical part is lubricated is blended in the higher pressure refrigerant gas (gas) of portion of compressed mechanism compression and be discharged to the outside of seal container, and can suppress the reduction of the efficient of motor part through outlet pipe.
Background technique
In the compressor that uses in the refrigerating circulatory device such as refrigerator or air conditioner, accommodating in the seal container that is connecting suction tude and outlet pipe refrigeration agent is carried out compressor for compressing structure portion and by what stator and rotor constituted this compression mechanical part carried out drive electric motor portion, the stator of described motor part is fixed on the inner peripheral surface of seal container by shrunk fit or method such as be pressed into.
The refrigerant gas that becomes high pressure through described compression mechanical part compression temporarily is discharged to from exhaust port in the closed box (case), and further imports in the gas channel that is arranged on motor part, and is discharged to external equipment from the outlet pipe that is connected in seal container.
On the other hand, forming the long-pending oily portion that accumulates lubricant oil, aspirating lubricant oil along with the work of compression mechanical part at the inner bottom part of seal container, and each slide part obtain lubricated after, this lubricant oil turns back to long-pending oily portion once more and circulates.
Yet after compression mechanical part obtained lubricating, having a part of lubricant oil became elaioleucite shape (mist (mist) shape), and mixes with higher pressure refrigerant gas, and imports in the gas channel of motor part, directly is discharged to external equipment from outlet pipe.As the type of the gas channel that constitutes motor part, gap between formed notch part on the stator outer circumferential face and seal container inner peripheral surface etc. is arranged.
Be discharged to the method for the lubricants capacity (telling oil mass) of described external equipment as minimizing, known following method is effective: increase the area of the gas channel of described motor part, make the flow velocity of the pressurized gas by wherein reduce (for example with reference to patent documentation 1).
[prior art document]
[patent documentation]
[patent documentation 1] Japan Patent spy opens the 2001-55977 communique
Yet, if increase the area of gas channel, the width dimensions of yoke portion that then for example constitutes the stator of motor part can corresponding diminishing, magnetic circuit narrows down, Magnetic flux density rises, and described gas channel is formed by the gap between formed notch part and the seal container inner peripheral surface on the described stator outer circumferential face.And in addition, can produce following problem: when the stator of motor part was fixed on the inner peripheral surface of seal container, magnetic circuit narrowed down and is compressed stress, and iron loss is increased, thereby causes efficient to reduce.
The model utility content
The utility model makes in view of described problem, thus the purpose of this utility model be to provide a kind of can suppress outside that lubricant oil is discharged to seal container can stablize fuel feeding and can alleviate motor part efficient reduction hermetic type compressor and use the refrigerating circulatory device of this hermetic type compressor.
The utility model is a kind of hermetic type compressor, the described one interior distolateral motor part that is made of stator and rotor of accommodating of seal container of outlet pipe at one end is being set, and another distolateral the accommodating by described motor part at described seal container is passed through running shaft and compressor driven structure portion, described hermetic type compressor is characterised in that: the stator of described motor part is concentrated winding (concentrated winding) stator with unshakable in one's determination and coil, this iron core comprises the ring-type yoke portion on the inner peripheral surface that is fixed on described seal container, with a plurality of tooth portion that forms towards central part from this yoke portion, this coil is wound in the tooth portion of described iron core across insulating component, in the described yoke portion, has recess at a plurality of positions with the outer circumferential face of described tooth portion subtend, the face that described recess engages by a pair of curved surface that protrudes laterally with these curved surfaces and forming, and between the inner peripheral surface of this recess and described seal container, forming gas channel.
In an example of the present utility model, and the width dimensions of the described yoke portion of the curved surface subtend of described recess is and is formed on 0.95 times～1.05 times of width dimensions of the yoke portion of the groove subtend between a plurality of tooth portion of described iron core.
In an example of the present utility model, the insulating component of described stator comprises the insulating end plate and the insulating trip of a pair of ring-type, described insulating end plate is provided in the axial two ends of the iron core of stator, and the insulation tooth portion that comprises the axial end of the tooth portion that covers described iron core, described insulating trip is equipped in the groove between a plurality of tooth portion that is formed on described iron core, the engaging protrusion that engages with the card complex hole that is formed on described yoke portion is being set on described insulating end plate, and the more outer circumferential side of the intersection point on the elongation line of a pair of curved surface that is centered close to described recess of the card complex hole of described yoke portion.
The utility model also proposes a kind of refrigerating circulatory device, comprising: above-mentioned hermetic type compressor, condenser, expansion gear and vaporizer.
[effect of model utility]
According to the utility model, can guarantee the gas channel stipulated, thereby can suppress the outside that lubricant oil is discharged to seal container.And, a kind of hermetic type compressor and refrigerating circulatory device that can alleviate the reduction of motor part efficient can be provided.
Description of drawings
Fig. 1 is hermetic type compressor under the expression example of the present utility model and the pie graph that uses the refrigerating circulatory device of this hermetic type compressor.
Fig. 2 is the stereogram of the described stator core of expression.
Fig. 3 is the stereogram of the described insulating end plate of expression.
Fig. 4 is the stereogram of the back side of expression insulating end plate equally.
Fig. 5 is the stereogram of the assembled state of described stator core of expression and insulating end plate.
Fig. 6 is the side view of the assembled state of expression stator core and insulating end plate equally.
Fig. 7 is the cross section of the relation of described seal container of expression and stator core.
Fig. 8 is the planimetric map that amplifies the major component of the described yoke of expression portion.
Fig. 9 is the planimetric map that amplifies the major component of expression yoke portion equally.
Figure 10 is the planimetric map that amplifies the major component of expression yoke portion equally.
Figure 11 is the half section figure that flows that schematically shows the magnetic flux in the described motor part.
[explanation of symbol]
1 refrigerating circulatory device, 2 condensers, 3 expansion gears
4 vaporizers, 5 accumulators, 6 running shafts
7,8 recess 7a curved surface 7b engage the face of curved surface
The 7c recess begins face 9 card complex holes 10 hermetic type compressors
11 seal containers, 20 motor part, 21 stators
The 22 22a yoke 22b of portion tooth unshakable in one's determination portions
The 23b insulation tooth 23c of portion engaging protrusion 24 coils
25 insulating trips, 30 compression mechanical parts, 40 compressing mechanisms
41 main bearings, 42 supplementary bearings, 43,44 valve gaps
45 screw rods, 46 cylinder chamber, 60 rotors
60a rare earth element magnet 61 eccentric parts 62 rollers
The center of 63 blade a, b, c width dimensions A card complex hole
B intersection point G gas channel M magnetic flux
R1, R2, R3 radius
Embodiment
Below, come hermetic type compressor under the example of the present utility model and refrigerating circulatory device are described referring to figs. 1 through Figure 11.Fig. 1 is the pie graph of the cross section structure of expression closed rotary compressor and refrigeration cycle (cycle) device that comprises this closed rotary compressor.And Fig. 2 to Figure 11 represents the detailed formation of the stator of motor part.
Among Fig. 1, refrigerating circulatory device 1 comprises: make refrigerant condenses condenser 2, be connected in this condenser 2 expansion gear 3, be connected in this expansion gear 3 and make the vaporizer 4 of refrigerants vaporize and be connected in the closed rotary compressor 10 of the outlet side of this vaporizer 4.And, between vaporizer 4 and closed rotary compressor 10, be connected accumulator (accumulator) 5.
Closed rotary compressor 10 is rotary compressors of twin cylinder (cylinder) type, and comprises seal container 11.Upper side in the seal container 11 is being accommodated motor part 20, and lower side is being accommodated compression mechanical part 30.Motor part 20 is connected with compression mechanical part 30 through running shaft 6.Closed rotary compressor 10 is vertical, and its running shaft 6 is established along vertical.
Compression mechanical part 30 comprises: 2 groups of compressing mechanisms 40, main bearing 41 and supplementary bearings 42, the valve gap (valve cover) 43 that utilizes screw rod (bolt) 45 will be arranged on main bearing 41 sides is simultaneously consolidated with valve gap 44 spiral shells that are arranged on supplementary bearing 42 sides.Main bearing 41 and supplementary bearing 42 rotate is respectively supporting running shaft 6 freely.
In each compressing mechanism 40 cylinder chamber 46 is being set, and disposing roller (roller) 62 prejudicially, utilizing the spinning movement of this roller 62 and be connected to the reciprocating action of the blade (blade) 63 of this roller 62, is suction chamber side and pressing chamber side with cylinder chamber's 46 zonings, to carry out compressed action.Running shaft 6 comprises: be arranged on the locational eccentric part 61 corresponding with cylinder chamber 46 and be entrenched in the roller 62 of these eccentric part 61 peripheries.
The refrigerating circulatory device 1 of Gou Chenging turns round in the following manner like this.
That is, to motor part 20 supply capabilities, running shaft 6 is subjected to rotation and drives, thereby drives this compression mechanical part 30 integratedly.In compression mechanical part 30, roller 62 is eccentric rotation in cylinder chamber 46, whereby, the refrigerant gas that imports in the cylinder chamber 46 is compressed gradually.Running shaft 6 continues rotation, and the capacity of the pressing chamber in the cylinder chamber 46 further reduces, and refrigerant gas is compressed, the open expulsion valve in back till this refrigerant gas rises to regulation air pressure.Pressurized gas are discharged in the seal container 11 through valve gap 43, make to be full of this pressurized gas in the seal container 11.Then, these pressurized gas are discharged from seal container 11.
The pressurized gas of discharging from seal container 11 import to the condenser 2 and the liquefaction of condensing, adiabatic expansion in expansion gear 3, and in vaporizer 4 from heat exchange air absorption latent heat of vaporization and bring into play cooling action.Then, the refrigeration agent after the evaporation is inhaled in the cylinder chamber 46 through accumulator 5, along the circulation of described path.
Secondly, with reference to Fig. 2 to Figure 11 the details of described concentrated winding stator 21 is described.Concentrated winding stator 21 by stator core 22, be arranged on the axial two ends of this stator core 22 a pair of insulating end plate 23, and the coil 24 (with reference to Fig. 1 and Figure 11) that twines across this insulating end plate 23 constitute.
As shown in Figure 2, stator core 22 is to form roughly tubular by the steel plate lamination, and is (yoke) 22a of yoke portion and is provided with integratedly and forms radial a plurality of (6) 22b of tooth portion across the interval of regulation each other towards central part from the 22a of this yoke portion and constitute by circular yoke.Therefore, between each 22b of tooth portion of stator core 22, forming along axial a plurality of grooves (slot) 22c.
And, with the outer circumferential face of the 22a of yoke portion of each 22b of tooth portion subtend, forming a plurality of recesses 7,8 that constitute following gas channel, in addition, near the inboard of this recess 7,8, forming the card complex hole 9 of the circle that is used for fixing described insulating end plate 23.
In described a plurality of groove 22c, setting along the interior shape of groove 22c and towards the insulating trip (sheet) 25 (expression is the state that is only setting 1 groove 22c in graphic) of axial insertion.In this example, insulating component is made of this insulating trip 25 and described insulating end plate 23.Therefore, during winding around 24, utilize insulating component and guarantee itself and stator core 22 insulation.
As Fig. 3 and shown in Figure 4, insulating end plate 23 is that the mould (mold) that utilizes resin is shaped and forms, and comprises: be installed in the 22a of yoke portion ring-type end plate body 23a and extend and the insulation tooth 23b of portion of the axial end of the 22b of tooth portion of covering stator iron core 22 towards central part from this end plate body 23a.And, as shown in Figure 4,, forming a plurality of (6) engaging protrusion 23c at the outer circumferential side of the insulation tooth 23b of portion in the back side of insulating end plate 23.This engaging protrusion 23c is the shape of front end taper, this engaging protrusion 23c is pressed in the card complex hole 9 of the described yoke 22a of portion after, make insulating end plate 23 be fixed in the stator core 22.
As Fig. 5 and shown in Figure 6, in a plurality of groove 22c of stator core 22, setting under the state of insulating trip 25, insulating end plate 23 is fixed on the axial two ends of stator core 22.This is by as mentioned above the engaging protrusion 23c of insulating end plate 23 being pressed into card complex hole 9 interior realizations of the 22a of yoke portion.Like this, be provided in insulating component in the stator core 22 after, coil 24 is the insulation tooth 23b of portion of insulating end plate 23 and insulating trip 25 and directly be wrapped in each 22b of tooth portion across insulating component.In addition, represent among Fig. 5 that insulating end plate 23 has been installed in the state of distolateral (being upper and lower sides in graphic) of stator core 22.
With reference to Fig. 7 to Figure 11, describe for a plurality of recesses 7,8 of the formation gas channel in the aforesaid basic comprising.Among Fig. 7, methods such as utilizing cross section to be illustrated in to utilize shrunk fit or be pressed into is fixed on concentrated winding stator 21 relation of seal container 11 and stator core 22 under the state in the seal container 11.
At the inner peripheral surface of seal container 11 and be formed between the recess 7,8 of outer circumferential face of the 22a of yoke portion, forming the gap, the gas channel G of the top and bottom that run through motor part 20 is being set.Other passages that utilize this gas channel G or form in addition can make 30 compressions of portion of compressed mechanism and the flow velocity that becomes the refrigerant gas of high pressure reduces, and are discharged to external equipment thereby can suppress lubricant oil from outlet pipe.
At first, as shown in Figure 8, the constituting component of recess 7 comprises: a pair of circular-arc curved surface (showing as curve on the plane) 7a of Tu Chuing and circular-arc curved surface 7b that this curved surface 7a is engaged laterally.And these curved surfaces 7a and 7b begin from the recess of outer circumferential face towards the both sides of inboard by the 22a of yoke portion that face 7c is continuous to be formed.
Then, as shown in Figure 9, radius be the curved surface 7a that describes of the circular arc of R1, R2 with groove 22c between size, promptly with the width dimensions a of the corresponding 22a of yoke portion of curved surface 7a, with respect to beginning the width dimensions b of the corresponding 22a of yoke portion of face 7c and for the width dimensions c of the corresponding 22a of yoke portion of the outer circumferential face of the 22a of yoke portion, be set at 0.95 times～1.05 times with recess.That is, the width dimensions a of the yoke portion 22a corresponding with curved surface 7a and with recess begin the corresponding 22a of yoke portion of face 7c width dimensions b, and become roughly the same with the width dimensions c of the corresponding 22a of yoke portion of the outer circumferential face of the 22a of yoke portion.
Therefore, can make the width of the magnetic circuit that magnetic flux passed through among the 22a of yoke portion roughly the same, and can make the Magnetic flux density homogenization, uprise partly thereby can suppress Magnetic flux density.
Secondly, as shown in figure 10, in this example, feasible formation position the best that is used for fixing the card complex hole 9 of described insulating end plate 23.Particularly, the center A of card complex hole 9 forms the more outer circumferential side of the intersection points B on the elongation line of a pair of curved surface 7a that is positioned at described recess 7.Therefore, because of there being this card complex hole 9, thus can guarantee the width of the magnetic circuit stipulated, and can not make the magnetic circuit stenosis narrow.
And, for the enlargement gas passage, also consider to make card complex hole 9 form the breach of opening to outer circumferential side.At this moment, stator core 22 is fixed in the seal container 11, therefore, can act on breach from the compressive stress of the inner face of seal container 11, and the magnetic flux of this part can't be flowed smoothly, and iron loss increases or the problem of stator core 22 distortion thereby produce.
And, omitted the detailed description that is positioned at 2 recesses 8 up and down in graphic, but described 2 recesses 8 are formed by a plurality of planes of straight line shape.In addition, this recess 8 also can constitute the form identical with described recess of the present utility model 7.
As mentioned above, according to constitute by curved surface 7a and 7b the constituting of recess 7, when being fixed on stator core 22 in the seal container 11, can disperse by curved surface from the compressive stress of the inner face of seal container 11, do not act on the part and can not concentrate, thereby this stress is relaxed.Therefore, to coil 24 energisings the time, the magnetic flux of the 22a of yoke portion is flowed smoothly, thereby can suppress the increase of iron loss, and the reduction that can alleviate efficient.In addition, can avoid the distortion of stator core 22.
And, make the width of the magnetic circuit among the 22a of yoke portion roughly the same, and make the formation position optimization of card complex hole 9, therefore can suppress the Magnetic flux density part to uprise, thereby can suppress the increase of iron loss, and can alleviate the reduction of efficient.
Figure 11 is the half section figure that schematically shows the motor part 20 that flows of magnetic flux M, and all recesses of expression hypothesis all are the situations of recess 7 of the present utility model.As shown in figure 11, the width dimensions of magnetic circuit is roughly the same, therefore, makes the Magnetic flux density equalization and Magnetic flux density is uprised partly, and can suppress the increase of iron loss.In addition, 60a is configured to the roughly flat rare earth element magnet of square shape in the mode of surrounding running shaft 6.
As mentioned above, according to this example, can guarantee that the gas channel G that stipulates can suppress the hermetic type compressor 10 and the refrigerating circulatory device 1 of reduction that lubricant oil is discharged to seal container 11 outsides and can alleviates the efficient of motor part 20 thereby can provide a kind of.
In addition, the utility model is not limited to the formation of described each example, and can carry out various distortion in the scope of the purport that does not break away from model utility.
Claims (4)
1. hermetic type compressor, the described one interior distolateral motor part that is made of stator and rotor of accommodating of seal container of outlet pipe at one end is being set, and another distolateral the accommodating by described motor part at described seal container is passed through running shaft and compressor driven structure portion, and described hermetic type compressor is characterised in that:
The stator of described motor part is the concentrated winding stator with unshakable in one's determination and coil, this iron core comprises ring-type yoke portion on the inner peripheral surface that is fixed on described seal container and a plurality of tooth portion that forms towards central part from this yoke portion, this coil is wound in the tooth portion of described iron core across insulating component
In the described yoke portion, has recess at a plurality of positions with the outer circumferential face of described tooth portion subtend, the face that described recess engages by a pair of curved surface that protrudes laterally with these curved surfaces and forming is forming gas channel between the inner peripheral surface of this recess and described seal container.
2. hermetic type compressor according to claim 1 is characterized in that:
And the width dimensions of the described yoke portion of the curved surface subtend of described recess is and is formed on 0.95 times～1.05 times of width dimensions of the yoke portion of the groove subtend between a plurality of tooth portion of described iron core.
3. hermetic type compressor according to claim 1 is characterized in that:
The insulating component of described stator comprises the insulating end plate and the insulating trip of a pair of ring-type, described insulating end plate be provided in stator iron core axial two ends and comprise the insulation tooth portion of the axial end of the tooth portion that covers described iron core, described insulating trip is equipped in the groove between a plurality of tooth portion that is formed on described iron core, the engaging protrusion that engages with the card complex hole that is formed on described yoke portion is being set on described insulating end plate, and the more outer circumferential side of the intersection point on the elongation line of a pair of curved surface that is centered close to described recess of the card complex hole of described yoke portion.
4. a refrigerating circulatory device is characterized in that comprising: each described hermetic type compressor, condenser, expansion gear and vaporizer in the claim 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201276105U CN201810512U (en) | 2010-02-24 | 2010-02-24 | Enclosed compressor and refrigeration cycle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201276105U CN201810512U (en) | 2010-02-24 | 2010-02-24 | Enclosed compressor and refrigeration cycle device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201810512U true CN201810512U (en) | 2011-04-27 |
Family
ID=43893454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201276105U Expired - Lifetime CN201810512U (en) | 2010-02-24 | 2010-02-24 | Enclosed compressor and refrigeration cycle device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201810512U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102856990A (en) * | 2011-07-01 | 2013-01-02 | 苏州爱知科技有限公司 | Method for manufacturing stator, rotating machine, and insulation member |
| CN107332415A (en) * | 2017-07-20 | 2017-11-07 | 安徽美芝精密制造有限公司 | Motor, compressor and air conditioner |
| CN110336401A (en) * | 2019-07-11 | 2019-10-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Stator module, motor, compressor and air conditioner |
| EP3734803A1 (en) * | 2019-05-03 | 2020-11-04 | LG Electronics Inc. | Electric compressor with improved insulation performance |
| CN114077131A (en) * | 2020-08-20 | 2022-02-22 | 卡西欧计算机株式会社 | Sealing member, electronic device and manufacturing method thereof, light source device and projection device |
| CN114270661A (en) * | 2019-09-26 | 2022-04-01 | 富士通将军股份有限公司 | Compressor |
| CN115912697A (en) * | 2023-01-09 | 2023-04-04 | 恒业智能驱动(杭州)股份有限公司 | Iron core with insulating end plate |
-
2010
- 2010-02-24 CN CN2010201276105U patent/CN201810512U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102856990A (en) * | 2011-07-01 | 2013-01-02 | 苏州爱知科技有限公司 | Method for manufacturing stator, rotating machine, and insulation member |
| CN102856990B (en) * | 2011-07-01 | 2015-05-27 | 苏州爱知科技有限公司 | Method for manufacturing stator, rotating machine, and insulation member |
| CN107332415A (en) * | 2017-07-20 | 2017-11-07 | 安徽美芝精密制造有限公司 | Motor, compressor and air conditioner |
| EP3734803A1 (en) * | 2019-05-03 | 2020-11-04 | LG Electronics Inc. | Electric compressor with improved insulation performance |
| US11536492B2 (en) | 2019-05-03 | 2022-12-27 | Lg Electronics Inc. | Electric compressor with improved insulation performance |
| CN110336401A (en) * | 2019-07-11 | 2019-10-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Stator module, motor, compressor and air conditioner |
| CN114270661A (en) * | 2019-09-26 | 2022-04-01 | 富士通将军股份有限公司 | Compressor |
| CN114077131A (en) * | 2020-08-20 | 2022-02-22 | 卡西欧计算机株式会社 | Sealing member, electronic device and manufacturing method thereof, light source device and projection device |
| CN115912697A (en) * | 2023-01-09 | 2023-04-04 | 恒业智能驱动(杭州)股份有限公司 | Iron core with insulating end plate |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20110427 |