CN105114317A - Rotary compressor - Google Patents
Rotary compressor Download PDFInfo
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- CN105114317A CN105114317A CN201510618546.8A CN201510618546A CN105114317A CN 105114317 A CN105114317 A CN 105114317A CN 201510618546 A CN201510618546 A CN 201510618546A CN 105114317 A CN105114317 A CN 105114317A
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- rotary compressor
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Abstract
The invention discloses a rotary compressor, comprising a shell, a motor and a compression mechanism. Two axial ends of the shell are provided with a first end wall and a second end wall, respectively. The motor comprises a stator core and a rotor core. Along an axis of the shell, a maximum distance between a lateral end face, close to the first end wall, of the stator core and the first end wall is Dst. The compression mechanism is located on one side, far away from the firs end wall, of the motor and comprises a cylinder assembly and a main bearing; the main bearing is connected to a lateral end face, close to the motor, of the cylinder assembly; along the axis of the shell, a minimum distance between a lateral end face, close to the first end wall, of the rotor core and a lateral end face, close to the first end wall, of a flange portion of the main bearing is Drt, wherein Dst and Drt meet a relation: 0.335</=Dst/Drt</=0.838. The rotary compressor according to the invention has the advantages such as simple and reasonable structure, assembly simplicity, and low noise.
Description
Technical field
The present invention relates to compressor apparatus field, especially relate to a kind of rotary compressor.
Background technique
Point out in correlation technique, can produce strong pressure pulsation when compressor internal high-pressure gas refrigerant is discharged, wherein most of noise produces at the central cavity of compressor, passes to upper cavity through rotor vent holes, finally reaches compressor outside by housing.And first the high pressure refrigerant gas compressing pump housing discharge arrives central cavity, central cavity and upper cavity mainly create 1000Hz to 1250Hz frequency range noise, this part noise, owing to cannot be eliminated by Sound-proof material, air-conditioning system can show abnormal ear-piercing, affect Consumer's Experience.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art.For this reason, the invention reside in and propose a kind of rotary compressor, described rotary compressor has the advantages such as noise is little, simple and reasonable.
According to rotary compressor of the present invention, comprise: housing, motor and compressing mechanism, the axial two ends of housing have the first end wall and the second end wall respectively, motor comprises stator iron core and rotor iron core, in the axial direction of the housing, ultimate range between one side end face of vicinity first end wall of stator iron core and the first end wall is Dst, compressing mechanism is positioned at the side away from the first end wall of motor, compressing mechanism comprises cylinder assembly and main bearing, main bearing is connected on a side end face of the contiguous motor of cylinder assembly, in the axial direction of the housing, minimum range between one side end face of one side end face of vicinity first end wall of rotor iron core and vicinity first end wall of the flange part of main bearing is Drt, wherein, Dst and Drt meets relation: 0.335≤Dst/Drt≤0.838.
According to rotary compressor of the present invention, by the value of Dst/Drt is arranged in rational scope, can effectively reduce rotary compressor work time noise, make rotary compressor have simple and reasonable, assembling simply and effectively low noise and other advantages is fallen.
Particularly, described Dst and described Drt meets relation further: 0.568≤Dst/Drt≤0.680.
Particularly, described rotor iron core is formed with the vent run through, the central axis of described vent and the rotation axis parallel of described rotor iron core.
Further, described vent distributes axisymmetricly about the first diameter of described rotor iron core, and the width D of described vent in described first diametric(al) meets: 0.204mm≤D≤0.480mm.
Preferably, described D meets further: 0.404mm≤D≤0.460mm.
Further, the profile line of the cross section of described vent is formed as the combination of curve or straight line and curve.
Particularly, on the spin axis direction of described rotor iron core, the shape of cross section of described vent, size be all identical.
Particularly, described vent is multiple and is evenly spaced apart in the circumference of described rotor iron core.
Further, the shape of each described vent, size are all identical.
Particularly, described rotor iron core is located at the inner side of described stator iron core rotationally.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Fig. 1 is the sectional view of the rotary compressor according to the embodiment of the present invention;
Fig. 2 is the axial schematic diagram of rotor iron core according to an embodiment of the invention;
Fig. 3 is the axial schematic diagram of rotor iron core in accordance with another embodiment of the present invention;
Fig. 4 is the axial schematic diagram of the rotor iron core according to another embodiment of the present invention;
Fig. 5 is the graph of relation of Dst/Drt value according to the embodiment of the present invention and level of noise;
Fig. 6 is the graph of relation of D value according to the embodiment of the present invention and level of noise.
Reference character:
Rotary compressor 100;
Housing 1; First housing 11; First end wall 111;
Middle casing 12;
Second housing 13; Second end wall 131;
Motor 2; Stator iron core 21;
Rotor iron core 22; Vent 221;
Compressing mechanism 3; Cylinder assembly 31; Main bearing 32; Flange part 321;
Bent axle 4.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Disclosing hereafter provides many different embodiments or example is used for realizing different structure of the present invention.Of the present invention open in order to simplify, hereinafter the parts of specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the present invention.In addition, the present invention can in different example repeat reference numerals and/or letter.This repetition is to simplify and clearly object, itself does not indicate the relation between discussed various embodiment and/or setting.In addition, the various specific technique that the invention provides and the example of material, but those of ordinary skill in the art can recognize the property of can be applicable to of other techniques and/or the use of other materials.
Describe the rotary compressor 100 according to the embodiment of the present invention below with reference to Fig. 1-Fig. 6, the refrigerant that the refrigerant of low-temp low-pressure can be converted to High Temperature High Pressure by described rotary compressor 100 is discharged.Wherein, rotary compressor 100 can be vertical compressor or bedroom compressor etc., is only described for vertical compressor for rotary compressor 100 below.
With reference to figure 1, according to the rotary compressor 100 of the embodiment of the present invention, comprising: housing 1, motor 2, compressing mechanism 3 and bent axle 4.
Wherein, the axial two ends of housing 1 have the first end wall 111 and the second end wall 131 respectively, such as, in the example of Fig. 1, housing 1 can comprise the first housing 11, middle casing 12, second housing 13, middle casing 12 can be formed as cylindrical shape, thus columnar middle casing 12 can limit certain holding space, be convenient to the installation of the component (motor 2 such as shown in Fig. 1 and compressing mechanism 3) of rotary compressor 100 inside.
With reference to figure 1, first housing 11 (such as upper shell shown in Fig. 1) and the second housing 13 (such as lower shell body shown in Fig. 1) are connected to the axial two ends of middle casing 12, like this, first end wall 111 can be the diapire face of the first housing 11, and the second end wall 131 can be the roof face of the second housing 13.
Further, any one in first housing 11 and the second housing 13 can be one-body molded with middle casing 12, with reference to figure 1, first housing 11 can be one-body molded with middle casing 12, thus after assembling component, middle casing 12 and the second housing 13 are fixed together, are convenient to the assembling of rotary compressor 100, enhance productivity.Certainly, the second housing 13 also can be one-body molded with middle casing 12, thus after assembling component, middle casing 12 and the first housing 11 are fixed together, complete the assembling of rotary compressor 100.
Particularly, motor 2 is located in housing 1, motor 2 comprises stator iron core 21 and rotor iron core 22, in the axis (above-below direction such as shown in Fig. 1) of housing 1, ultimate range between one side end face of vicinity first end wall 111 of stator iron core 21 and the first end wall 111 is Dst, such as in the example of fig. 1, in the vertical direction, distance between the upper-end surface of stator iron core 21 and the first end wall 111 is Dst, here it should be noted that, when the first housing 11 is erose profile, Dst is then the ultimate range between the upper-end surface of stator iron core 21 and the madial wall of the first housing 11.
Further, compressing mechanism 3 to be located in housing 1 and to be positioned at the side away from the first end wall 111 of motor 2, such as, in the example of Fig. 1, compressing mechanism 3 can be arranged on the below of motor 2, thus compressing mechanism 3 comparatively motor 2 away from the first end wall 111, and be convenient to installation and the cooperating of motor 2 and compressing mechanism 3.
Particularly, with reference to figure 1, compressing mechanism 3 comprises cylinder assembly 31 and main bearing 32, main bearing 32 is connected on a side end face (upper-end surface of the cylinder assembly 31 such as shown in Fig. 1) of the contiguous motor 2 of cylinder assembly 31, in the axis (above-below direction such as shown in Fig. 1) of housing 1, minimum range between one side end face of one side end face of vicinity first end wall 111 of rotor iron core 22 and vicinity first end wall 111 of the flange part 321 of main bearing 32 is Drt, such as in the example of fig. 1, distance between the top of the upper-end surface of rotor iron core 22 and the flange part 321 of main bearing 32 is Drt.
Wherein, Dst and Drt meets relation: 0.335≤Dst/Drt≤0.838, with reference to figure 5, here it should be noted that, abscissa in Fig. 5 represents the value of Dst/Drt, y coordinate α in Fig. 5 represents noise OA value when rotary compressor 100 works, particularly, along with the continuous increase of Dst/Drt, the operating noise OA value of rotary compressor 100 is first reduced to a certain degree gradually, increase gradually more subsequently, by the different designs of the Dst/Drt ratio to rotary compressor 100, rotary compressor 100 can be made to have different noises, such as, Dst/Drt is 0.4, 0.45, 0.55, 0.6, when 0.75, the operating noise of rotary compressor 100 all can be reduced effectively.
It can thus be appreciated that, by the Dst/Drt value of rotary compressor 100 being set to: 0.335≤Dst/Drt≤0.838, the operating noise of rotary compressor 100 all effectively can be reduced.
Here it should be noted that, motor 2 and compressing mechanism 3 can all coaxially be arranged with housing 1, that is, the central axis of bent axle 4 and the central axes of housing 1, thus the central axes of the spin axis of rotor iron core 22 and housing 1, the central axis of main bearing 32 and the central axis of cylinder assembly 31 also all with the central axes of housing 1, like this, the simple and reasonable of rotary compressor 100 can be made, and be convenient to the assembling of rotary compressor 100.
According to the rotary compressor 100 of the embodiment of the present invention, by the value of Dst/Drt is arranged in rational scope, effectively can reduce noise when rotary compressor 100 works, make rotary compressor 100 have simple and reasonable, assembling simply and effectively low noise and other advantages is fallen.
Preferably, Dst and Drt meets relation further: 0.568≤Dst/Drt≤0.680, such as, when Dst/Drt is 0.58,0.6 or 0.65, the operating noise of rotary compressor 100 is close to minimum, it can thus be appreciated that, by the Dst/Drt value of rotary compressor 100 being set to: 0.568≤Dst/Drt≤0.680, the operating noise of rotary compressor 100 can be reduced further.
In some embodiments of the invention, with reference to figure 1 and Fig. 2, the refrigerant of High Temperature High Pressure of discharging from compressing mechanism 3 to upper driving, rotor iron core 22 can be formed with the vent 221 run through, thus can be convenient to the refrigerant of High Temperature High Pressure to upper driving, reduce noise.
Further, the central axis of vent 221 and the rotation axis parallel of rotor iron core 22, such as in the example of fig. 1, the spin axis of rotor iron core 22 is above-below direction, thus the central axis of vent 221 also can be above-below direction, thus be convenient to further the refrigerant of High Temperature High Pressure to upper driving, effectively reduce noise further.
In some embodiments of the invention, vent 221 distributes axisymmetricly about the first diameter of rotor iron core 22, the width D of vent 221 in the first diametric(al) meets: 0.204mm≤D≤0.480mm, such as in the figure 2 example, vent 221 can be symmetrical arranged about the first diameter k of rotor iron core 22, the width of vent 221 on the first diameter k is D, with reference to figure 6, here it should be noted that, abscissa in Fig. 6 represents the value of D, y coordinate α in Fig. 6 represents noise OA value when rotary compressor 100 works, particularly, along with the continuous change of D value is large, the operating noise of rotary compressor 100 is first reduced to a certain degree gradually, increase gradually more subsequently, by the different designs of the D value of the vent 221 to rotary compressor 100, rotary compressor 100 can be made to have different noises, such as, D is 0.25mm, 0.35mm, during 0.41mm, the operating noise of rotary compressor 100 all can be reduced effectively.
It can thus be appreciated that, be set to by the D value of the vent 221 by rotary compressor 100: 0.204mm≤D≤0.480mm, effectively can reduce the operating noise of rotary compressor 100.
Preferably, D meets further: 0.404mm≤D≤0.460mm, such as, when D is 0.41mm, 0.43mm or 0.45mm, the operating noise of rotary compressor 100 is close to minimum, it can thus be appreciated that, be set to by the D value of the vent 221 by rotary compressor 100: 0.404mm≤D≤0.460mm, the operating noise of rotary compressor 100 can be reduced further.
In some embodiments of the invention, the profile line of the cross section of vent 221 can be formed as the combination of curve or straight line and curve, such as, the cross section of vent 221 can be hollow arc shape (as shown in Figure 2), also can be circular (as shown in Figure 3), can also be round rectangle (as shown in Figure 4), thus be convenient to the circulation of the refrigerant of High Temperature High Pressure, reduce the operating noise of rotary compressor 100.Certainly, the present invention is not limited thereto, the cross section of vent 221 also can be other curves or straight line and curve in conjunction with shape, to meet actual user demand better.
In some embodiments of the invention, upper in the spin axis direction (above-below direction such as shown in Fig. 1) of rotor iron core 22, the shape of cross section of vent 221, size are all identical, thus be convenient to the processing of vent 221 on the one hand, reduce the complex manufacturing of rotary compressor 100, the refrigerant of High Temperature High Pressure can be made on the other hand more even by flowing during vent 221, enter the operating noise that a ground reduces rotary compressor 100.
In some embodiments of the invention, with reference to figure 2, vent 221 can be multiple and be evenly spaced apart in the circumference of rotor iron core 22, that is, multiple vent 221 is evenly spaced apart setting in the circumference of rotor iron core 22, thus facilitate the processing of vent 221, and be convenient to the circulation of High Temperature High Pressure refrigerant.
Further, with reference to figure 2-Fig. 4, shape, the size of each vent 221 are all identical, thus facilitate the processing of vent 221 further, improve the circulation uniformity of High Temperature High Pressure refrigerant, and then effectively reduce the operating noise of rotary compressor 100.
In some embodiments of the invention, with reference to figure 1, rotor iron core 22 is located at the inner side of stator iron core 21 rotationally, specifically, the periphery wall of stator iron core 21 can be fixed with the inner circle wall of housing 1, rotor iron core 22 can be connected with bent axle 4 hot jacket, thus effectively improves the fitment stability of motor 2 and compressing mechanism 3, and is convenient to the assembling of rotary compressor 100.Certainly, the present invention is not limited thereto, rotor iron core 22 also can be located at the outside of stator iron core 21 rotationally.
In addition, other formation, working principle and drive manners according to the rotary compressor of the embodiment of the present invention are all known for those of ordinary skills, are not described in detail here.In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection, can also be communication; Can be directly be connected, also indirectly can 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, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (10)
1. a rotary compressor, is characterized in that, comprising:
Housing, the axial two ends of described housing have the first end wall and the second end wall respectively;
Motor, described motor is located in described housing, and described motor comprises stator iron core and rotor iron core, is Dst in the ultimate range axially, between a side end face of described first end wall of vicinity of described stator iron core and described first end wall of described housing;
Compressing mechanism, described compressing mechanism to be located in described housing and to be positioned at the side away from described first end wall of described motor, described compressing mechanism comprises cylinder assembly and main bearing, described main bearing is connected on a side end face of the described motor of vicinity of described cylinder assembly, be Drt in the minimum range axially, between a side end face of described first end wall of vicinity of described rotor iron core and a side end face of described first end wall of vicinity of the flange part of described main bearing of described housing
Wherein, described Dst and described Drt meets relation: 0.335≤Dst/Drt≤0.838.
2. rotary compressor according to claim 1, is characterized in that, described Dst and described Drt meets relation further: 0.568≤Dst/Drt≤0.680.
3. rotary compressor according to claim 1, is characterized in that, described rotor iron core is formed with the vent run through, the central axis of described vent and the rotation axis parallel of described rotor iron core.
4. rotary compressor according to claim 3, is characterized in that, described vent distributes axisymmetricly about the first diameter of described rotor iron core, and the width D of described vent in described first diametric(al) meets: 0.204mm≤D≤0.480mm.
5. rotary compressor according to claim 4, is characterized in that, described D meets further: 0.404mm≤D≤0.460mm.
6. rotary compressor according to claim 3, is characterized in that, the profile line of the cross section of described vent is formed as the combination of curve or straight line and curve.
7. rotary compressor according to claim 3, is characterized in that, on the spin axis direction of described rotor iron core, the shape of cross section of described vent, size be all identical.
8. rotary compressor according to claim 3, is characterized in that, described vent is multiple and is evenly spaced apart in the circumference of described rotor iron core.
9. rotary compressor according to claim 8, is characterized in that, shape, the size of each described vent are all identical.
10. the rotary compressor according to any one of claim 1-9, is characterized in that, described rotor iron core is located at the inner side of described stator iron core rotationally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510618546.8A CN105114317B (en) | 2015-09-24 | 2015-09-24 | Rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510618546.8A CN105114317B (en) | 2015-09-24 | 2015-09-24 | Rotary compressor |
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| Publication Number | Publication Date |
|---|---|
| CN105114317A true CN105114317A (en) | 2015-12-02 |
| CN105114317B CN105114317B (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510618546.8A Active CN105114317B (en) | 2015-09-24 | 2015-09-24 | Rotary compressor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382229A (en) * | 2016-11-22 | 2017-02-08 | 广东美芝制冷设备有限公司 | Rotary compressor and refrigeration circulating device |
| WO2018094571A1 (en) * | 2016-11-22 | 2018-05-31 | 广东美芝制冷设备有限公司 | Rotary compressor and cooling circulation device |
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| JP2002295380A (en) * | 2001-03-29 | 2002-10-09 | Mitsubishi Electric Corp | Transverse scroll compressor |
| CN101529098A (en) * | 2006-11-22 | 2009-09-09 | 东芝开利株式会社 | Rotary compressor and refrigeration cycle device |
| CN103906928A (en) * | 2011-10-31 | 2014-07-02 | 东芝开利株式会社 | Sealed rotary compressor and refrigeration cycle device |
| CN204243933U (en) * | 2014-11-17 | 2015-04-01 | 安徽美芝精密制造有限公司 | Compressor and motor rotor component thereof |
| CN205036585U (en) * | 2015-09-24 | 2016-02-17 | 广东美芝制冷设备有限公司 | Rotary compressor |
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2015
- 2015-09-24 CN CN201510618546.8A patent/CN105114317B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002295380A (en) * | 2001-03-29 | 2002-10-09 | Mitsubishi Electric Corp | Transverse scroll compressor |
| CN101529098A (en) * | 2006-11-22 | 2009-09-09 | 东芝开利株式会社 | Rotary compressor and refrigeration cycle device |
| CN103906928A (en) * | 2011-10-31 | 2014-07-02 | 东芝开利株式会社 | Sealed rotary compressor and refrigeration cycle device |
| CN204243933U (en) * | 2014-11-17 | 2015-04-01 | 安徽美芝精密制造有限公司 | Compressor and motor rotor component thereof |
| CN205036585U (en) * | 2015-09-24 | 2016-02-17 | 广东美芝制冷设备有限公司 | Rotary compressor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382229A (en) * | 2016-11-22 | 2017-02-08 | 广东美芝制冷设备有限公司 | Rotary compressor and refrigeration circulating device |
| WO2018094571A1 (en) * | 2016-11-22 | 2018-05-31 | 广东美芝制冷设备有限公司 | Rotary compressor and cooling circulation device |
| CN106382229B (en) * | 2016-11-22 | 2019-05-24 | 广东美芝制冷设备有限公司 | Rotary compressor and refrigerating circulatory device |
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| Publication number | Publication date |
|---|---|
| CN105114317B (en) | 2017-05-31 |
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