CN203962324U - The compressor with external rotor electric machine - Google Patents
The compressor with external rotor electric machine Download PDFInfo
- Publication number
- CN203962324U CN203962324U CN201420363352.9U CN201420363352U CN203962324U CN 203962324 U CN203962324 U CN 203962324U CN 201420363352 U CN201420363352 U CN 201420363352U CN 203962324 U CN203962324 U CN 203962324U
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- compressor
- mainframe
- electric machine
- bracket stand
- joint
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Abstract
The utility model discloses a kind of compressor with external rotor electric machine, comprising: housing; Mainframe, described mainframe is located in described housing; Bearing bracket stand, described bearing bracket stand is located at the lower end of described mainframe; Motor, described motor is between described mainframe and described bearing bracket stand, and described motor comprises stator and rotor, and it is outside that described rotor is located at described stator rotationally, and described stator is located on described mainframe or described bearing bracket stand; And bent axle, described bent axle is through described rotor, and described rotor drives described crankshaft rotating, and described bearing bracket stand is passed through the lower end of described mainframe and described bent axle in the upper end of described bent axle.According to the utility model embodiment's the compressor with external rotor electric machine, can effectively overcome external rotor electric machine rotary inertia large and the startup unbalance impact of moment that causes and the vibration defect bigger than normal in compressor operation.
Description
Technical field
The utility model relates to compressor field, especially relates to a kind of compressor with external rotor electric machine.
Background technique
Compressor is as the core component of refrigeration appliance, and its motor technology is extremely important on the impact of integrating compressor, especially at aspects such as efficiency, noise, low voltage startup, costs.External rotor electric machine is because adopting the built-in and rotor external structure of stator, it has outstanding advantages such as startup ability is strong, the high and low cost of material of efficiency and being paid close attention to by increasing compressor producer.With respect to traditional internal rotor reciprocating compressor, external rotor electric machine is greater than stator because of root diameter, and the rotary inertia of rotor is apparently higher than internal rotor type.
In prior art, compressor vibrates problem bigger than normal while easily there is unbalance and running when starting.
Model utility content
The utility model is intended at least solve one of technical problem existing in prior art.For this reason, the utility model need to provide a kind of compressor with external rotor electric machine, and this compressor can effectively overcome external rotor electric machine rotary inertia large and the startup unbalance impact of moment that causes and the vibration defect bigger than normal in compressor operation.
The compressor with external rotor electric machine according to the utility model embodiment, comprising: housing; Mainframe, described mainframe is located in described housing; Bearing bracket stand, described bearing bracket stand is located at the lower end of described mainframe; Motor, described motor is between described mainframe and described bearing bracket stand, and described motor comprises stator and rotor, and it is outside that described rotor is located at described stator rotationally, and described stator is located on described mainframe or described bearing bracket stand; And bent axle, described bent axle is through described rotor, and described rotor drives described crankshaft rotating, and described bearing bracket stand is passed through the lower end of described mainframe and described bent axle in the upper end of described bent axle.
In prior art, piston compressor especially for the external rotor electric machine of refrigerator system, according to the utility model embodiment's compressor, in mainframe lower end, be also provided with bearing bracket stand, the top and bottom of bent axle are supported jointly by mainframe and bearing bracket stand respectively.Rotor is located on bent axle, in the process that rotor rotates, be with dynamic crankshaft together to rotate, due to bent axle by upper and lower two parts jointly support, spacing, can effectively overcome thus external rotor electric machine rotary inertia large and the startup unbalance impact of moment that causes and the vibration defect bigger than normal in compressor operation, the vibration of compressor is little, structure is more stable, and performance is good.
In addition, according to the compressor with external rotor electric machine of the present utility model, also can there is following additional technical feature:
According to an embodiment of the present utility model, described bearing bracket stand comprises: bearing support, and described bent axle is through described bearing support; The first joint, described the first joint is located on described bearing support outer surface and described bearing bracket stand is located on described mainframe by described the first joint.
According to an embodiment of the present utility model, described mainframe comprises: fixing body, and described bent axle is through described fixing body; The second joint, described the second joint is located at the lower end of described fixing body, and described the first joint is connected with described the second joint.
According to an embodiment of the present utility model, described the first joint comprises a plurality of the first attachment posts, a plurality of described the first attachment posts are around the circumferential arrangement of described bearing support and extend upward, described the second joint comprises a plurality of the second attachment posts, a plurality of described the second attachment posts are around the circumferential arrangement of described fixing body and to downward-extension, and a plurality of described the first attachment posts and a plurality of described the second attachment posts are corresponding being connected one by one.
According to an embodiment of the present utility model, the upper-end surface of described bearing support is higher than the upper-end surface of described the first attachment post.
According to an embodiment of the present utility model, a plurality of described the first attachment posts are circumferentially evenly arranged around described bearing support, a plurality of described the second attachment posts being circumferentially evenly arranged around described fixing body.
According to an embodiment of the present utility model, described the first joint also comprises a plurality of connecting plates, and a plurality of described connecting plates are corresponding one by one with a plurality of described the first attachment posts, and described in each, the first attachment post is connected with described bearing support by corresponding described connecting plate.
According to an embodiment of the present utility model, described stator sleeve is located on the outer circumferential face of described bearing support, and it is inverted U-shaped that described rotor is on longitudinal cross-section, and described rotor housing is located at described stator top.
According to an embodiment of the present utility model, the outer circumferential face of described bearing support is provided with locating slot, and described stator is provided with positioning block, and described positioning block coordinates with described locating slot.
According to an embodiment of the present utility model, described in there is external rotor electric machine compressor also comprise: shock absorber, described shock absorber is located at the lower end of described bearing bracket stand and is connected with the diapire of described housing.
Additional aspect of the present utility model and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage accompanying drawing below combination obviously and is easily understood becoming embodiment's description, wherein:
Fig. 1 is according to the sectional view of the utility model embodiment's compressor;
Fig. 2 is the explosive view of the compressor shown in Fig. 1;
Fig. 3 is the partial structurtes sectional view of the compressor shown in Fig. 1;
Fig. 4 is the stator of the compressor shown in Fig. 1 and the sectional view of bearing bracket stand;
Fig. 5 is the mainframe of the compressor shown in Fig. 1 and the sectional view of bearing bracket stand;
Fig. 6 is the mainframe of the compressor shown in Fig. 1 and the stereogram of bearing bracket stand;
Fig. 7 is the stereogram of the bearing bracket stand of the compressor shown in Fig. 1.
Description of reference numerals
Compressor 100;
Housing 1; Installation cavity 11;
Mainframe 2; Fixing body 21; The second joint 22; The second attachment post 221;
Bearing bracket stand 3; Bearing support 31; The first joint 32; The first attachment post 321; Connecting plate 322;
Motor 4; Stator 41; Rotor 42;
Bent axle 5; Connecting rod 6; Piston 7; Shock absorber 8.
Embodiment
Describe embodiment of the present utility model below in detail, described embodiment's example is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment who is described with reference to the drawings, be exemplary, only for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " clockwise ", orientation or the position relationship of indications such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characteristics.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, the implication of " a plurality of " is two or more, unless otherwise expressly limited specifically.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term in the utility model.
Below with reference to Fig. 1-Fig. 7, describe according to the utility model embodiment's the compressor with external rotor electric machine 100.First it should be noted that, according to the utility model embodiment's compressor 100, can, in any chiller plant, especially, according to compressor 100 of the present utility model, be specially adapted to refrigerator system, particularly, this compressor 100 can be piston 7 formula compressors 100.
As shown in Figure 1, the compressor 100 according to the utility model embodiment, comprising: housing 1, mainframe 2, bearing bracket stand 3, motor 4 and bent axle 5.Further, compressor 100 also comprises piston 7, connecting rod 6.
In housing 1, limit installation cavity 11, mainframe 2, bearing bracket stand 3, motor 4 and bent axle 5 are all located in this installation cavity 11.Mainframe 2 is located at the top of installation cavity 11, on mainframe 2, can limit compression chamber, piston 7 be located in compression chamber and can be in compression chamber to-and-fro motion to reach the object of compression.
Bearing bracket stand 3 is located at the lower end of mainframe 2, bearing bracket stand 3 can play the effect of bearing on the one hand, so that bent axle 5 is played to support, position-limiting action, bearing bracket stand 3 can also play the effect of scaffold on the other hand, to be connected with mainframe 2 is relatively-stationary, bearing bracket stand 3 is irremovable with respect to mainframe 2.
Motor 4 between mainframe 2 and bearing bracket stand 3, wherein can explain to have certain space between mainframe 2 and bearing bracket stand 3 here, so that motor 4 can be contained between mainframe 2 and bearing bracket stand 3.Particularly, motor 4 comprises stator 41 and rotor 42, and rotor 42 is located at stator 41 outsides rotationally, and bent axle 5 is through rotor 42, and rotor 42 band dynamic crankshafts 5 rotate.Stator 41 is located on mainframe 2 or bearing bracket stand 3, and stator 41 is fixed with respect to mainframe 2 and bearing bracket stand 3.
Bearing bracket stand 3 is passed through the lower end of mainframe 2 and bent axle 5 in the upper end of bent axle 5.Particularly, as shown in Figure 1, bent axle 5 is from top to bottom successively through mainframe 2, rotor 42 and bearing bracket stand 3.The upper end of bent axle 5 is through mainframe 2, and wherein 2 pairs of bent axles 5 of mainframe play support, position-limiting action, and the lower end of bent axle 5 is through bearing bracket stand 3 simultaneously, and 3 pairs of bent axles 5 of bearing bracket stand also play support, position-limiting action.
In prior art, piston compressor especially for the external rotor electric machine of refrigerator system, according to the utility model embodiment's compressor 100, in mainframe 2 lower ends, be also provided with bearing bracket stand 3, the top and bottom of bent axle 5 are supported jointly by mainframe 2 and bearing bracket stand 3 respectively.Rotor 42 is located on bent axle 5, in the process that rotor 42 rotates, be with dynamic crankshaft 5 together to rotate, due to bent axle 5 by upper and lower two parts jointly support, spacing, can effectively overcome thus external rotor electric machine rotary inertia large and the startup unbalance impact of moment that causes and the vibration defect bigger than normal in compressor 100 runnings, the vibration of compressor 100 is little, structure is more stable, and performance is good.
As Figure 1-Figure 5, bearing bracket stand 3 comprises bearing support 31 and the first joint 32.Bent axle 5 is through bearing support 31 and can freely rotate bearing support 31 is interior, and the first joint 32 is located on bearing support 31 outer surfaces and bearing bracket stand 3 is located on mainframe 2 by the first joint 32.Thus, bearing bracket stand 3 can firmly be connected on mainframe 2 by the first joint 32, and bearing support 31 plays the effect of support, spacing bent axle 5, and the first joint 32 plays the effect that connects mainframe 2.Wherein preferably, the first joint 32 is integrally formed with bearing support 31, can improve like this join strength and stability between bearing support 31 and the first joint 32, and the mode that is wherein integrally formed can be forging, punching press, casting etc. particularly.
Correspondingly, mainframe 2 comprises fixing body 21 and the second joint 22, and bent axle 5 is through fixing body 21, and on above-below direction, bearing support 31 is relative with fixing body 21.The second joint 22 is located at the lower end of fixing body 21, and the first joint 32 is connected with the second joint 22, and on above-below direction, the first joint 32 is relative with the second joint 22.Particularly, fixing body 21 can play the effect of support, spacing bent axle 5, and the second joint 22 is connected with the first joint 32, to play the effect that connects mainframe 2 and bearing bracket stand 3.Preferably, the second joint 22 is integrally formed with fixing body 21, can improve like this join strength and stability between fixing body 21 and the second joint 22, and the mode that is wherein integrally formed can be forging, punching press, casting etc. particularly.
Preferably, at least one in a plurality of the first joints 32 is provided with the first positioning part, in a plurality of the second joints 22 corresponding at least one be provided with second positioning part relative with the first positioning part, match with the second positioning part with by a plurality of the first joints 32 and a plurality of the second joints 22 location in the first positioning part.By the first positioning part and the second positioning part are set, thereby can rapidly the first joint 32 and the second joint 22 be positioned, thereby can improve assembling speed, reduce assembling difficulty.
In embodiments more of the present utility model, as shown in Fig. 1-Fig. 7, the first joint 32 can comprise a plurality of the first attachment posts 321, and a plurality of the first attachment posts 321 are around the circumferential arrangement of bearing support 31, and a plurality of the first attachment posts 321 all extend upward; Correspondingly, the second joint 22 can comprise a plurality of the second attachment posts 221, and a plurality of the second attachment posts 221 are around the circumferential arrangement of fixing body 21, and a plurality of the second attachment posts 221 are all to downward-extension.Wherein, a plurality of the first attachment posts 321 and a plurality of the second attachment posts 221 corresponding being connected one by one.Particularly, the lower end in contact of the upper end of corresponding the first attachment post 321 and corresponding the second attachment post 221.By above-mentioned structural design, thereby can make to there is unsettled space between mainframe 2 and bearing bracket stand 3, to meet the installation of motor 4.Alternatively, the first attachment post 321 and the second attachment post 221 can be fastenedly connected by threaded fasteners such as bolts.
Preferably, a plurality of the first attachment posts 321 being circumferentially evenly arranged around bearing support 31, a plurality of the second attachment posts 221 being circumferentially evenly arranged around fixing body 21, after can making thus the first attachment post 321 be connected with the second attachment post 221, the first joint 32 and the second joint 22 stressed more even, the linkage structure between mainframe 2 and bearing bracket stand 3 is more stable.
In embodiments more of the present utility model, the first joint 32 also comprises a plurality of connecting plates 322, and a plurality of connecting plates 322 are corresponding one by one with a plurality of the first attachment posts 321, and each first attachment post 321 is connected with bearing support 31 by corresponding connecting plate 322.Particularly, as shown in Figure 7, each connecting plate 322 is the plate-like piece of substantially horizontal orientation, and one end of a connecting plate 322 is connected with the outer surface of bearing support 31, and the other end of this connecting plate 322 is connected with first attachment post 321.In optional example of the present utility model, the first attachment post 321 is four, and connecting plate 322 is four, and correspondingly, the second attachment post 221 is also four, can make thus the linkage structure between mainframe 2 and bearing bracket stand 3 more stable.
In a specific embodiment of the present utility model, stator 41 is located on bearing bracket stand 3, and particularly, stator 41 is set on the outer circumferential face of bearing support 31, and it is inverted U-shaped that rotor 42 is on longitudinal cross-section, and rotor 42 is located at stator 41 tops.Bent axle 5 is through the top of rotor 42, relative maintaining static between rotor 42 and bent axle 5.Preferably, the outer circumferential face of bearing support 31 is provided with locating slot, and stator 41 is provided with positioning block, and positioning block coordinates with locating slot, can guarantee thus the accurate positioning between stator 41 and bearing bracket stand 3, and then can guarantee the axial position of stator 41 and rotor 42.
In an embodiment of the present utility model, the upper-end surface of bearing support 31 is higher than the upper-end surface of the first attachment post 321.Like this, stator 41 is set on bearing support 31, large with the area of contact of bearing support 31, and stator 41 is more stable with the linkage structure of bearing support 31, and then can make the structure of compressor 100 more stable.
Preferably, compressor 100 also comprises shock absorber 8, shock absorber 8 is located at the lower end of bearing bracket stand 3 and is connected with the diapire of housing 1, by shock absorber 8 is set, thereby can play buffer function, thereby the vibration in the time of can further slowing down compressor 100 startup, reduces noise, extends the working life of compressor 100.Alternatively, shock absorber 8 can be a plurality of and equate with the number of the first attachment post 321, and shock absorber 8 is located at the lower end of the first attachment post 321 and loud with housing 1.
In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiments or example.
Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present utility model and aim, can carry out multiple variation, modification, replacement and modification to these embodiments, scope of the present utility model is limited by claim and equivalent thereof.
Claims (10)
1. a compressor with external rotor electric machine, is characterized in that, comprising:
Housing;
Mainframe, described mainframe is located in described housing;
Bearing bracket stand, described bearing bracket stand is located at the lower end of described mainframe;
Motor, described motor is between described mainframe and described bearing bracket stand, and described motor comprises stator and rotor, and it is outside that described rotor is located at described stator rotationally, and described stator is located on described mainframe or described bearing bracket stand; And
Bent axle, described bent axle is through described rotor, and described rotor drives described crankshaft rotating, and described bearing bracket stand is passed through the lower end of described mainframe and described bent axle in the upper end of described bent axle.
2. the compressor with external rotor electric machine according to claim 1, is characterized in that, described bearing bracket stand comprises:
Bearing support, described bent axle is through described bearing support;
The first joint, described the first joint is located on described bearing support outer surface and described bearing bracket stand is located on described mainframe by described the first joint.
3. the compressor with external rotor electric machine according to claim 2, is characterized in that, described mainframe comprises:
Fixing body, described bent axle is through described fixing body;
The second joint, described the second joint is located at the lower end of described fixing body, and described the first joint is connected with described the second joint.
4. the compressor with external rotor electric machine according to claim 3, it is characterized in that, described the first joint comprises a plurality of the first attachment posts, a plurality of described the first attachment posts are around the circumferential arrangement of described bearing support and extend upward, described the second joint comprises a plurality of the second attachment posts, a plurality of described the second attachment posts are around the circumferential arrangement of described fixing body and to downward-extension, and a plurality of described the first attachment posts and a plurality of described the second attachment posts are corresponding being connected one by one.
5. the compressor with external rotor electric machine according to claim 4, is characterized in that, the upper-end surface of described bearing support is higher than the upper-end surface of described the first attachment post.
6. the compressor with external rotor electric machine according to claim 4, is characterized in that, a plurality of described the first attachment posts are circumferentially evenly arranged around described bearing support, a plurality of described the second attachment posts being circumferentially evenly arranged around described fixing body.
7. the compressor with external rotor electric machine according to claim 4, it is characterized in that, described the first joint also comprises a plurality of connecting plates, a plurality of described connecting plates are corresponding one by one with a plurality of described the first attachment posts, and described in each, the first attachment post is connected with described bearing support by corresponding described connecting plate.
8. the compressor with external rotor electric machine according to claim 2, is characterized in that, described stator sleeve is located on the outer circumferential face of described bearing support, and it is inverted U-shaped that described rotor is on longitudinal cross-section, and described rotor housing is located at described stator top.
9. the compressor with external rotor electric machine according to claim 8, is characterized in that, the outer circumferential face of described bearing support is provided with locating slot, and described stator is provided with positioning block, and described positioning block coordinates with described locating slot.
10. the compressor with external rotor electric machine according to claim 1, is characterized in that, also comprises: shock absorber, described shock absorber is located at the lower end of described bearing bracket stand and is connected with the diapire of described housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420363352.9U CN203962324U (en) | 2014-07-01 | 2014-07-01 | The compressor with external rotor electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420363352.9U CN203962324U (en) | 2014-07-01 | 2014-07-01 | The compressor with external rotor electric machine |
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| Publication Number | Publication Date |
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| CN203962324U true CN203962324U (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420363352.9U Withdrawn - After Issue CN203962324U (en) | 2014-07-01 | 2014-07-01 | The compressor with external rotor electric machine |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104702073A (en) * | 2015-03-11 | 2015-06-10 | 无锡新大力电机有限公司 | Integrated external rotor permanent magnet motor for screw compressor |
| CN105221387A (en) * | 2014-07-01 | 2016-01-06 | 安徽美芝制冷设备有限公司 | There is the compressor of external rotor electric machine |
| CN106351841A (en) * | 2016-11-24 | 2017-01-25 | 黄石艾博科技发展有限公司 | Reinforced inner support structure for refrigeration compressor |
| CN106662092A (en) * | 2015-08-25 | 2017-05-10 | 松下知识产权经营株式会社 | Enclosed compressdor and refrigeration device |
| WO2020085427A1 (en) * | 2018-10-26 | 2020-04-30 | パナソニック アプライアンシズ リフリジレーション デヴァイシズ シンガポール | Sealed compressor and refrigeration device |
| WO2021113943A1 (en) * | 2019-12-11 | 2021-06-17 | Embraco Indústria De Compressores E Soluções Em Refrigeração Ltda. | Reciprocating hermetic compressor with axial flux motor |
-
2014
- 2014-07-01 CN CN201420363352.9U patent/CN203962324U/en not_active Withdrawn - After Issue
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221387B (en) * | 2014-07-01 | 2017-12-12 | 安徽美芝制冷设备有限公司 | Compressor with external rotor electric machine |
| CN105221387A (en) * | 2014-07-01 | 2016-01-06 | 安徽美芝制冷设备有限公司 | There is the compressor of external rotor electric machine |
| CN104702073A (en) * | 2015-03-11 | 2015-06-10 | 无锡新大力电机有限公司 | Integrated external rotor permanent magnet motor for screw compressor |
| CN106662092B (en) * | 2015-08-25 | 2018-03-09 | 松下知识产权经营株式会社 | Hermetic type compressor and refrigerating plant |
| EP3176437A4 (en) * | 2015-08-25 | 2017-11-22 | Panasonic Intellectual Property Management Co., Ltd. | Enclosed compressdor and refrigeration device |
| CN106662092A (en) * | 2015-08-25 | 2017-05-10 | 松下知识产权经营株式会社 | Enclosed compressdor and refrigeration device |
| US20180216609A1 (en) * | 2015-08-25 | 2018-08-02 | Panasonic Intellectual Property Management Co., Ltd. | Closed compressor and refrigeration device |
| US10830222B2 (en) * | 2015-08-25 | 2020-11-10 | Panasonic Appliances Refrigeration Devices Singapore | Refrigeration compressor having an outer-rotor type motor with the stator fixed to a member fixed to a cylinder block |
| CN106351841A (en) * | 2016-11-24 | 2017-01-25 | 黄石艾博科技发展有限公司 | Reinforced inner support structure for refrigeration compressor |
| WO2020085427A1 (en) * | 2018-10-26 | 2020-04-30 | パナソニック アプライアンシズ リフリジレーション デヴァイシズ シンガポール | Sealed compressor and refrigeration device |
| WO2021113943A1 (en) * | 2019-12-11 | 2021-06-17 | Embraco Indústria De Compressores E Soluções Em Refrigeração Ltda. | Reciprocating hermetic compressor with axial flux motor |
| CN115038868A (en) * | 2019-12-11 | 2022-09-09 | Nidec全球电器巴西有限公司 | Reciprocating hermetic compressor with axial flow motor |
| US20230014696A1 (en) * | 2019-12-11 | 2023-01-19 | Nidec Global Appliance Brasil Ltda. | Reciprocating hermetic compressor with axial flux motor |
| CN115038868B (en) * | 2019-12-11 | 2024-04-05 | Nidec全球电器巴西有限公司 | Reciprocating hermetic compressor with axial flow motor |
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