CN105099056A - Motor structure and compressor - Google Patents
Motor structure and compressor Download PDFInfo
- Publication number
- CN105099056A CN105099056A CN201410212126.5A CN201410212126A CN105099056A CN 105099056 A CN105099056 A CN 105099056A CN 201410212126 A CN201410212126 A CN 201410212126A CN 105099056 A CN105099056 A CN 105099056A
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- Prior art keywords
- circulation passage
- expansion chambers
- stator core
- electric machine
- machine structure
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- 239000003507 refrigerant Substances 0.000 claims abstract description 47
- 230000010349 pulsation Effects 0.000 abstract 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Compressor (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention provides a motor structure and a compressor, wherein the motor structure comprises a stator core, a rotor and a shell; the stator core is arranged in the shell; a circulation channel is arranged between the stator core and the shell and/or on the stator core and/or the rotor, and a refrigerant flows through the circulation channel; the flow channel is provided with an expansion chamber; the cross-sectional area of the expansion chamber perpendicular to the refrigerant flowing direction is larger than the cross-sectional area of the other part of the flow channel perpendicular to the refrigerant flowing direction. After the structure is adopted, the invention has the following advantages: reasonable in design, simple structure can obtain the decay after exhaust noise and refrigerant pressure pulsation pass through the circulation passageway, and then has reduced the vibration and the noise of compressor noise and off-premises station pipeline.
Description
Technical field
The present invention relates to technical field of motors, particularly a kind of electric machine structure and there is its compressor.
Background technology
At present, the circulation had between the stator of motor and housing for the circulation of refrigerant (fluid media) is led to, and is cooled motor by refrigerant.In prior art, this electric machine structure, area and the shape of the cross section of its circulation passage remain unchanged on circulating direction.The pressure fluctuation of refrigerant flow to motor epicoele from motor cavity of resorption through circulation passage, the noise of stator one end is not decayed by during circulation passage, thus cause other end noise problem, and the pressure fluctuation of refrigerant is not also decayed further by circulation passage, thus cause other end vibration, noise problem.
Summary of the invention
The object of this invention is to provide a kind of reasonable in design, structure simple, can the electric machine structure of effective attenuation noise and refrigerant pressure fluctuation and compressor.
For achieving the above object, the technical solution adopted in the present invention is:
A kind of electric machine structure, comprises stator core, rotor and housing;
Described stator core is arranged in described housing;
Arrange circulation passage between described stator core and described housing and/or on described stator core and/or described rotor, refrigerant flows through in described circulation passage;
Described circulation passage arranges expansion chambers;
Described expansion chambers is greater than the area of section of other positions of described circulation passage perpendicular to refrigerant circulating direction at the area of section perpendicular to refrigerant circulating direction.
Wherein in an embodiment, described circulation passage comprises first-class circulation passage;
Described first-class circulation passage is the gap between described stator core and described housing;
Described expansion chambers comprises the first expansion chambers;
Described first expansion chambers is arranged in described first-class circulation passage.
Wherein in an embodiment, described first expansion chambers is the depression arranged on the surface at described stator core.
Wherein in an embodiment, described first expansion chambers comprise N group depression, be respectively the first depression and second depression and ... cave in N;
Described first depression and described second depression and ... with N cave in arrange along refrigerant circulating direction.
Wherein in an embodiment, described first depression and described second depression and ... with N cave in quantity be one or more.
Wherein in an embodiment, described first expansion chambers is the recessed trench perpendicular to refrigerant circulating direction arranged in described shell inner surface.
Wherein in an embodiment, the quantity of described recessed trench is one or more.
Wherein in an embodiment, described circulation passage comprises second circulation passage;
Described second circulation passage is be arranged on the through hole on described stator core, and the axis direction of described second circulation passage is identical with refrigerant circulating direction;
Described expansion chambers comprises the second expansion chambers;
Described second expansion chambers is be arranged on the ring-shaped groove on described second circulation passage inwall.
Wherein in an embodiment, the quantity of described second circulation passage is two or more, and is distributed on the surrounding of described stator core.
Wherein in an embodiment, the quantity of described second expansion chambers is one or more, and is arranged in order along refrigerant circulating direction.
Wherein in an embodiment, described circulation passage comprises the 3rd circulation passage;
Described 3rd circulation passage is for being arranged on described epitrochanterian through hole, and the axis direction of described 3rd circulation passage is identical with refrigerant circulating direction;
Described expansion chambers comprises the 3rd expansion chambers;
Described 3rd expansion chambers is be arranged on the ring-shaped groove on described through-hole wall.
A kind of compressor, comprises the electric machine structure described in above any one.
Adopt on circulation passage and expansion chambers is set; Expansion chambers is vertically being greater than with the area of section of refrigerant circulating direction the structure that other positions of circulation passage are vertical and area of section that is refrigerant circulating direction is such, tool of the present invention is had the following advantages: reasonable in design, structure is simple, exhaust noise and refrigerant pressure fluctuation by being decayed after circulation passage, and then reduce the vibration & noise of compressor noise and off-premises station pipeline.
Accompanying drawing explanation
Fig. 1 is electric machine structure embodiment one schematic diagram of the present invention;
Fig. 2 is stator core schematic diagram in Fig. 1;
Fig. 3 is another execution mode schematic diagram of stator core in Fig. 1;
Fig. 4 is electric machine structure embodiment two schematic diagram of the present invention;
Fig. 5 is stator core schematic diagram in electric machine structure embodiment three of the present invention;
Wherein: 1 stator core; 2 housings; 3 circulation passages; 4 expansion chambers; 5 first-class circulation passage; 6 first expansion chambers; 7 first depressions; 8 second depressions; 9 second circulation passage; 10 second expansion chambers; 11 rotors.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, electric machine structure of the present invention and compressor are further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment one
As shown in Figure 1, 2, a kind of electric machine structure, comprises stator core 1, rotor 11 and housing 2;
Stator core 1 is arranged in housing 2;
Arrange circulation passage 3 between stator core 1 and housing 2 and/or on stator core 1 and/or rotor 11, refrigerant flows through in circulation passage 3;
Circulation passage 3 is arranged expansion chambers 4;
Expansion chambers 4 is greater than the area of section of other positions of circulation passage 3 perpendicular to refrigerant circulating direction at the area of section perpendicular to refrigerant circulating direction.
Because expansion chambers 4 is greater than the vertical area of section with refrigerant circulating direction in other positions of circulation passage 3 at the area of section perpendicular to refrigerant circulating direction, circulation passage 3 is made to form a kind of variable section structure (namely perpendicular to the area difference in the cross section of refrigerant circulating direction diverse location).When refrigerant passes through from circulation passage 3, this variable section structure can make the pressure fluctuation of refrigerant be decayed.According to the transmission loss computing formula of expanding muffler, circulation passage 3 adopts this variable section structure that exhaust noise can be made to be decayed when through circulation passage 3, thus reduces noise.The transmission loss computing formula Δ L=10lg [1+1/4 (m-1/m) of expanding muffler
2sin
2(kl)], wherein m is divergence ratio (i.e. the sectional area of expansion chambers 4 and the ratio of other position sectional areas of circulation passage 3), and k is wave number, and k=2 π/λ (λ is the wavelength of sound wave), l is the length of expansion chambers.When design expansion chambers 4, need the performance considering motor, determine the value of divergence ratio m and the value of expansion chambers length l, the transmission loss Δ L of expansion chambers 4 is met object that pre-provisioning request (as Δ L is greater than predetermined value) reaches sound-deadening and noise-reducing.
As a kind of embodiment, as shown in Figure 1, 2, circulation passage 3 comprises first-class circulation passage 5;
First-class circulation passage 5 is the gap between stator core 1 and housing 2;
Expansion chambers 4 comprises the first expansion chambers 6;
First expansion chambers 6 is arranged in first-class circulation passage 5.
Directly utilize the gap between stator core 1 and housing 2 as first-class circulation passage 5, need not deliberately go to design and produce first-class circulation passage 5, and the first expansion chambers 6 is arranged in first-class circulation passage 5, makes designing and producing of this motor structure for compressor more simple, reduce cost.
As a kind of embodiment, as shown in Figure 2, the first expansion chambers 6 is the depression arranged on the surface at stator core 1.
Because stator core 1 presses to one by silicon steel sheet stack, therefore when machine silicon steel disc, directly according to designing requirement, silicon steel sheet can be made into different shapes, make molded rear direct formation first expansion chambers 6 of silicon steel sheet stack, the processing of the first expansion chambers 6 can be made like this to become more simple and convenient, and the volume of compressor electric motor can not be made to become large, save space.
As a kind of embodiment, as shown in Figure 3, the first expansion chambers 6 comprises the first depression 7 and the second depression 8 Hes ... with N depression (not shown);
First depression 7 and the second depression 8 Hes ... arrange along refrigerant circulating direction with N depression.
As a kind of embodiment, the first depression 7 and the second depression 8 Hes ... be one or more with the quantity of N depression.
First depression 7 and the second depression 8 Hes ... arrange along refrigerant circulating direction with N depression.The pressure fluctuation of noise and refrigerant can be made repeatedly to be decayed, thus make the effect of reduction noise and vibrations better.
First depression 7 and the second depression 8 Hes ... all can be set to around the stator core depression of 1 one weeks with N depression, also can be the multiple depressions around stator core arrangement in 1 one weeks.
Embodiment two
In the present embodiment, electric machine structure has identical structure with the motor structure for compressor described in embodiment one and forms, and as shown in Figure 4, wherein the first expansion chambers 6 is the recessed trench perpendicular to refrigerant circulating direction arranged on housing 1 inner surface.
Quantity as a kind of embodiment recessed trench can be one or more.
So only need produce recessed trench at housing 1 both can make circulation passage 3 form variable cross-section mechanism, and this mode makes the processing and fabricating of the first expansion chambers 6 become more simple, easily.
Embodiment three
In the present embodiment, electric machine structure has identical structure with the motor structure for compressor described in embodiment one or embodiment two and forms, and as shown in Figure 5, wherein circulation passage 3 comprises second circulation passage 9;
Second circulation passage 9 is for being arranged on axis direction on stator core 1 through hole identical with refrigerant circulating direction;
Expansion chambers 4 comprises the second expansion chambers 10;
Second expansion chambers 10 is for being arranged on the ring-shaped groove on second circulation passage 9 inwall.
By arranging the through hole of axis direction as second circulation passage 9 on stator core 1, correspondingly can reduce the gap between stator core 1 and housing 2, compressor electric motor can be made like this to become less, save space.And ring-shaped groove is set on through-hole wall as the second expansion chambers 10, it is identical with the principle described in embodiment one with the consumption of refrigerant pressure fluctuation to noise, no longer describes in detail herein.The manufacture method of second circulation passage 9 and the second expansion chambers 10 also can adopt a kind of described method with embodiment to make, and namely makes silicon steel sheet according to designing requirement, directly forms second circulation passage 9 and the second expansion chambers 10 after being forced together by silicon steel sheet stack.
As a kind of embodiment, the quantity of second circulation passage 9 is two or more, and is distributed on the surrounding of stator core 1.
So namely, the dynamic balancing that stator core 1 is in operation can be ensured, the circulation area of second circulation passage 9 can be increased again simultaneously, ensure that the smooth and easy of refrigerant passes through.
As a kind of embodiment, the quantity of the second expansion chambers 10 is one or more, and is arranged in order along refrigerant circulating direction.
The pressure fluctuation of noise and refrigerant can be made so repeatedly to be decayed, thus make the effect of reduction noise and vibrations better.
Embodiment four
In the present embodiment, electric machine structure has identical structure with the motor structure for compressor described in embodiment one or embodiment two and forms, and wherein said circulation passage 3 comprises the 3rd circulation passage (not shown);
3rd circulation passage is the through hole that the axis direction be arranged on rotor 11 is identical with refrigerant circulating direction;
Expansion chambers 4 comprises the 3rd expansion chambers (not shown);
3rd expansion chambers is be arranged on the ring-shaped groove on the 3rd circulation inwall.
3rd circulation passage is identical with the second expansion chambers 10 with the second circulation passage 9 in embodiment three with execution mode with the design principle of the 3rd expansion chambers, describes in detail no longer one by one herein.
The present invention also provides a kind of compressor, comprises the electric machine structure described in above any embodiment.
The invention has the beneficial effects as follows: reasonable in design, structure is simple, and exhaust noise and refrigerant pressure fluctuation by being decayed after circulation passage, and then reduce the vibration & noise of compression and noise and off-premises station pipeline.
The above embodiment only have expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (12)
1. an electric machine structure, is characterized in that:
Comprise stator core, rotor and housing;
Described stator core is arranged in described housing;
Arrange circulation passage between described stator core and described housing and/or on described stator core and/or described rotor, refrigerant flows through in described circulation passage;
Described circulation passage arranges expansion chambers;
Described expansion chambers is greater than the area of section of other positions of described circulation passage perpendicular to refrigerant circulating direction at the area of section perpendicular to refrigerant circulating direction.
2. electric machine structure according to claim 1, is characterized in that:
Described circulation passage comprises first-class circulation passage;
Described first-class circulation passage is the gap between described stator core and described housing;
Described expansion chambers comprises the first expansion chambers;
Described first expansion chambers is arranged in described first-class circulation passage.
3. electric machine structure according to claim 2, is characterized in that:
Described first expansion chambers is the depression arranged on the surface at described stator core.
4. electric machine structure according to claim 3, is characterized in that:
Described first expansion chambers comprise N group depression, be respectively the first depression and second depression and ... cave in N;
Described first depression and described second depression and ... with N cave in arrange along refrigerant circulating direction.
5. electric machine structure according to claim 4, is characterized in that:
Described first depression and described second depression and ... with N cave in quantity be one or more.
6. electric machine structure according to claim 2, is characterized in that:
Described first expansion chambers is the recessed trench perpendicular to refrigerant circulating direction arranged in described shell inner surface.
7. electric machine structure according to claim 6, is characterized in that:
The quantity of described recessed trench is one or more.
8. the electric machine structure according to claim 1 to 7 any one, is characterized in that:
Described circulation passage comprises second circulation passage;
Described second circulation passage is be arranged on the through hole on described stator core, and the axis direction of described second circulation passage is identical with refrigerant circulating direction;
Described expansion chambers comprises the second expansion chambers;
Described second expansion chambers is be arranged on the ring-shaped groove on described second circulation passage inwall.
9. electric machine structure according to claim 8, is characterized in that:
The quantity of described second circulation passage is two or more, and is distributed on the surrounding of described stator core.
10. electric machine structure according to claim 9, is characterized in that:
The quantity of described second expansion chambers is one or more, and is arranged in order along refrigerant circulating direction.
11. electric machine structures according to claim 1 to 7 any one, is characterized in that:
Described circulation passage comprises the 3rd circulation passage;
Described 3rd circulation passage is for being arranged on described epitrochanterian through hole, and the axis direction of described 3rd circulation passage is identical with refrigerant circulating direction;
Described expansion chambers comprises the 3rd expansion chambers;
Described 3rd expansion chambers is be arranged on the ring-shaped groove on described through-hole wall.
12. 1 kinds of compressors, is characterized in that:
Comprise the electric machine structure described in claim 1 to 11 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410212126.5A CN105099056B (en) | 2014-05-19 | 2014-05-19 | Motor structure and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410212126.5A CN105099056B (en) | 2014-05-19 | 2014-05-19 | Motor structure and compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105099056A true CN105099056A (en) | 2015-11-25 |
| CN105099056B CN105099056B (en) | 2018-09-11 |
Family
ID=54578867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410212126.5A Expired - Fee Related CN105099056B (en) | 2014-05-19 | 2014-05-19 | Motor structure and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105099056B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594158A (en) * | 2018-06-13 | 2019-12-20 | 上海海立电器有限公司 | Silencing structure of compressor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2290662Y (en) * | 1996-11-02 | 1998-09-09 | 张来 | Electrical lighting device on key |
| JP2004357472A (en) * | 2003-05-30 | 2004-12-16 | Suzuki Motor Corp | Cooling structure of motor |
| CN201466882U (en) * | 2009-07-29 | 2010-05-12 | 上海上电电机有限公司 | Motor air channel structure |
| CN103141015A (en) * | 2010-09-29 | 2013-06-05 | 瑞美技术有限责任公司 | Electric machine cooling system and method |
| CN103155377A (en) * | 2010-10-04 | 2013-06-12 | 瑞美技术有限责任公司 | Coolant channels for electric machine stator |
| CN203967888U (en) * | 2014-05-19 | 2014-11-26 | 珠海格力电器股份有限公司 | Motor structure and compressor |
-
2014
- 2014-05-19 CN CN201410212126.5A patent/CN105099056B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2290662Y (en) * | 1996-11-02 | 1998-09-09 | 张来 | Electrical lighting device on key |
| JP2004357472A (en) * | 2003-05-30 | 2004-12-16 | Suzuki Motor Corp | Cooling structure of motor |
| CN201466882U (en) * | 2009-07-29 | 2010-05-12 | 上海上电电机有限公司 | Motor air channel structure |
| CN103141015A (en) * | 2010-09-29 | 2013-06-05 | 瑞美技术有限责任公司 | Electric machine cooling system and method |
| CN103155377A (en) * | 2010-10-04 | 2013-06-12 | 瑞美技术有限责任公司 | Coolant channels for electric machine stator |
| CN203967888U (en) * | 2014-05-19 | 2014-11-26 | 珠海格力电器股份有限公司 | Motor structure and compressor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594158A (en) * | 2018-06-13 | 2019-12-20 | 上海海立电器有限公司 | Silencing structure of compressor |
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| Publication number | Publication date |
|---|---|
| CN105099056B (en) | 2018-09-11 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180911 |
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| CF01 | Termination of patent right due to non-payment of annual fee |