CN203967937U - The compressor with external rotor electric machine - Google Patents
The compressor with external rotor electric machine Download PDFInfo
- Publication number
- CN203967937U CN203967937U CN201420324388.6U CN201420324388U CN203967937U CN 203967937 U CN203967937 U CN 203967937U CN 201420324388 U CN201420324388 U CN 201420324388U CN 203967937 U CN203967937 U CN 203967937U
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- compressor
- electric machine
- balance weight
- rotor
- rotor case
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- 238000005265 energy consumption Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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Abstract
The utility model discloses a kind of compressor with external rotor electric machine, comprise: external rotor electric machine, described external rotor electric machine comprises stator and rotor assembly, described rotor assembly is located at the outside and rotatable around the axis of described stator of described stator, described rotor assembly comprises rotor case and magnet, and described magnet is located on the inwall of described rotor case; And balanced structure, described balanced structure is located on described rotor assembly.According to the compressor of the utility model embodiment owing on the rotor assembly of external rotor electric machine, balanced structure being set, thereby eccentric moment that can balance rotating portion, and then can reduce the vibration of compressor and move noise, reduce the energy consumption of compressor, improve the performance of compressor.
Description
Technical field
The utility model relates to compressor field, especially relates to a kind of compressor with external rotor electric machine.
Background technology
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 material cost of efficiency, thus by increasing compressor producer, paid close attention to.There is eccentric moment imbalance problem in the rotating part of traditional compressor with external rotor electric machine, therefore needs to improve.
Utility model 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, this compressor is owing on the rotor assembly of external rotor electric machine, balanced structure being set, thereby eccentric moment that can balance rotating portion, and then can reduce the vibration of compressor and move noise, reduce the energy consumption of compressor, improve the performance of compressor.
According to the compressor with external rotor electric machine of the utility model embodiment, comprise: external rotor electric machine, described external rotor electric machine comprises stator and rotor assembly, described rotor assembly is located at the outside and rotatable around the axis of described stator of described stator, described rotor assembly comprises rotor case and magnet, and described magnet is located on the inwall of described rotor case; And balanced structure, described balanced structure is located on described rotor assembly.
According to the compressor of the utility model embodiment, its motor is external rotor electric machine, by balanced structure being set on the rotor assembly of external rotor electric machine, thereby the eccentric moment of rotating part that can balance compressor, compressor is in the process of work like this, rotating part operation is more steady, not only can reduce vibration and the operation noise of compressor, can also reduce the energy consumption of compressor, further can improve the performance of compressor, when compressor application is in refrigerating system, can also improve refrigeration or the heating efficiency of whole refrigerating system.
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 in there is external rotor electric machine compressor comprise balance weight, described balance weight is located on described rotor case and/or described magnet, described balance weight forms at least a portion of described balanced structure.
Alternatively, described balance weight is located on the outer wall and/or inwall of described rotor case.
Alternatively, it is barrel-shaped that described rotor case is configured to the unlimited cylinder in upper end or lower end, and described rotor case comprises end plate and the side plate circumferentially arranging around described end plate, and described balance weight is located on described end plate and/or described side plate.
Alternatively, described balance weight is plate shaped, step, crescent, strip or annular.
Alternatively, described balance weight and described rotor case are integrally formed.
Alternatively, described magnet comprises circumferential spaced a plurality of around described rotor case inwall, and described balance weight is located between two adjacent described magnets.
Alternatively, described in there is external rotor electric machine compressor also comprise low-density embedded block, the density of described low-density embedded block is less than the density of described balance weight, described low-density embedded block is located between two adjacent described magnets.
According to an embodiment of the present utility model, described rotor case is provided with groove, and described groove forms at least a portion of described balanced structure.
Alternatively, described groove is communicated with upper surface and the lower surface of described rotor case.
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 the description of embodiment, wherein:
Fig. 1 is according to the structural representation of the compressor with external rotor electric machine of an embodiment of the utility model;
Fig. 2 is according to the structural representation of the compressor with external rotor electric machine of an embodiment of the utility model;
Fig. 3 is according to the structural representation of the compressor with external rotor electric machine of an embodiment of the utility model;
Fig. 4 a and Fig. 4 b are respectively bowing to cutaway view according to the structural representation of the compressor with external rotor electric machine of an embodiment of the utility model and rotor assembly;
Fig. 5 a-Fig. 5 c is according to the structural representation of the balance weight of the different embodiment of the utility model;
Fig. 6 a is respectively according to the balance weight of the compressor with external rotor electric machine of the different embodiment of the utility model and the syndeton of rotor assembly with Fig. 6 b;
Fig. 7 a and Fig. 7 b are respectively according to the structural representation of the compressor with external rotor electric machine of an embodiment of the utility model and the stereogram of rotor assembly.
Description of reference numerals
Compressor 100;
External rotor electric machine 1; Stator 11; Rotor assembly 12; Rotor case 121; Magnet 122;
Balanced structure 2; Balance weight 21; Groove 22;
Low-density embedded block 3.
Embodiment
Describe embodiment of the present utility model below in detail, the example of described embodiment 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 being 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 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 b, describe according to the compressor with external rotor electric machine 100 of the utility model embodiment.According to the compressor 100 of the utility model embodiment, can be the compressor of arbitrary form, such as being rotary compressor, piston compressor etc.First it should be noted that, compressor comprises drive division and rotating part, and drive division comprises motor, and rotating part comprises cylinder, upper bearing (metal), lower bearing and bent axle, and bent axle is located by upper bearing (metal) and lower bearing.The rotor of bent axle and motor is fixed, the rotation of rotor banding dynamic crankshaft, the eccentric part of bent axle drives piston in cylinder, to do back and forth movement to reach compression object (piston compressor), or the eccentric part of bent axle drives piston in cylinder, to rotate to reach compression object (rotary compressor).
As shown in Fig. 1-Fig. 7 b, according to the compressor 100 of the utility model embodiment, comprise external rotor electric machine 1 and balanced structure 2.External rotor electric machine 1 comprises stator 11 and rotor assembly 12, rotor assembly 12 is located at the outside and rotatable around the axis of stator 11 of stator 11, rotor assembly 12 comprises rotor case 121 and magnet 122, magnet 122 is located on the inwall of rotor case 121, as shown in accompanying drawing 6a and 6b, it is barrel-shaped that rotor case 121 is configured to the unlimited cylinder in upper end or lower end, rotor case 121 comprises end plate and the side plate circumferentially arranging around end plate, on axial section, rotor case 121 is positive U-shaped or inverted U-shaped.Balanced structure 2 is located on rotor assembly 12, it should be explained that here, and balanced structure 2 can be located on rotor case 121, and balanced structure 2 also can be located on magnet 122.
According to the compressor 100 of the utility model embodiment, its motor is external rotor electric machine, by balanced structure 2 being set on the rotor assembly 12 at external rotor electric machine 1, thereby the eccentric moment of rotating part that can balance compressor 100, compressor 100 is in the process of work like this, rotating part operation is more steady, not only can reduce vibration and the operation noise of compressor 100, can also reduce the energy consumption of compressor 100, further can improve the performance of compressor 100, when compressor 100 is applied in refrigerating system, can also improve refrigeration or the heating efficiency of whole refrigerating system.
Below with reference to each view, describe according to the compressor 100 of the different embodiment of the utility model.
As shown in Fig. 1-Fig. 6 b, according to a class embodiment of the present utility model, balanced structure 2 can be balance weight 21, and balance weight 21 is located on rotor case 121 and/or magnet 122, and balance weight 21 forms at least a portion of balanced structure 2.Wherein alternatively, balance weight 21 material used can be high density material, as brass, potassium steel etc.Balance weight 21 can be that laminated structure also can be integrated formed structure.
In a compressor 100, it can be also a plurality of that balance weight 21 can be one, and balance weight 21 can be located on rotor case 121, and balance weight 21 also can be located on magnet 122; When balance weight 21 is while being a plurality of, a plurality of balance weights 21 can all be located on rotor case 121, or a plurality of balance weights 21 can all be located on magnet 122, the part in certain a plurality of balance weights 21 can be located on rotor case 121, another part can be located on magnet 122.
In the example shown in Fig. 1-Fig. 3, balance weight 21 is located on the outer wall and/or inwall of rotor case 121, wherein rotor case 121 is cylindrical shape, the outer wall of rotor case 121 refers to the outer surface away from inner chamber of rotor case 121, and the inwall of rotor case 121 refers to the wall of the inner chamber of rotor case 121.By balance weight 21 being located on the outer wall of rotor case 121, make thus balance weight 21 larger with respect to the arm of force of the axis of rotor case 121, therefore can be by balance weight 21 quality controls in very little number range, unbalanced moments that just can balance rotating portion.By balance weight 21 is located on the inwall of rotor case 121, thereby can eliminate the impact that balance weight 21 is arranged on windage of likely bringing on outer wall etc.Further, balance weight 21 can be located on the end plate and/or side plate of rotor case 121.Be understandable that, rotor case 121 can be that upper end is opened wide and the structure of lower end closed, and rotor case 121 can be also that lower end is opened wide and the structure of upper end closed.
Particularly as shown in Figure 1, balance weight 21 is located on the outer wall of side plate of rotor case 121, and balance weight 21 also can be located on the inwall of side plate of rotor case 121 (scheming not shown) certainly.As shown in Figure 2, rotor case 121 is the unlimited structure of upper end closed and lower end, balance weight 21 is located on the outer wall of end plate of rotor case 121, in figure, balance weight 21 is located on the roof of rotor case 121, and certainly balance weight 21 also can be located on the inwall of end plate of rotor case 121 (scheming not shown).As shown in Figure 3, rotor case 121 is for opening wide and the structure of lower end closed upper end, balance weight 21 is located on the outer wall of end plate of rotor case 121, in figure, balance weight 21 is located on the diapire of rotor case 121, and certainly balance weight 21 also can be located on the inwall of end plate of rotor case 121 (scheming not shown).
Alternatively, as shown in Figure 6 a, balance weight 21 can form with rotor case 121 in split, be that balance weight 21 can be manufactured respectively with rotor case 121, then balance weight 21 be arranged on rotor case 121 to such structure, manufacturing process is simple, low cost of manufacture.Wherein balance weight 21 can be various with the connected mode of rotor case 121, can connect by securing member, paste, welds, embeds the modes such as setting, interference fit, buckle connection be located on rotor case 121 such as balance weight 21.
As shown in Figure 6 b, balance weight 21 also can be integrally formed with rotor case 121, and balance weight 21 is configured to boss outwardly from rotor case 121.Wherein in Fig. 6 b, boss is formed on the free end face of side plate of rotor case 121.By balance weight 21 and rotor case 121 are integrally formed, thereby can strengthen the bonding strength of balance weight 21 and rotor case 121, can avoid like this balance weight 21 to depart from from rotor case 121, long service life.Wherein rotor case 121 can be integrally formed by modes such as castings with the boss on it, convenient formation.
Alternatively, as shown in Fig. 5 a-Fig. 5 b, the shape of balance weight 21 can be arbitrarily, for example balance weight 21 can be plate shaped, step, crescent, strip or annular, wherein the concrete shape of balance weight 21 can be determined as the case may be, can improve thus actual industrial effect.
In the example shown in Fig. 4 a and Fig. 4 b, balance weight 21 is located on magnet 122.Wherein, magnet 122 comprises circumferential spaced a plurality of around rotor case 121 inwalls.In concrete example as shown in Figure 4 b, magnet 122 comprises four, and the floor projection of each magnet 122 is arc, and balance weight 21 is located between two adjacent magnets 122, be to have gap between a plurality of magnets 122, balance weight 21 is located in the gap of adjacent magnets 122.In this example, balance weight 21 is two, and two balance weights 21 are separately positioned in two adjacent gaps.Certainly these two balance weights 21 can also be located in relative gap and (scheme not shown).
Alternatively, according to the concrete condition of compressor 100, can also be provided with low-density embedded block 3, the density of low-density embedded block 3 is less than the density of balance weight 21, low-density embedded block 3 is located between two adjacent magnets 122, wherein low-density embedded block 3 far from equilibrium pieces 21 arrange, in low-density embedded block 3 is located at different magnet gap from balance weight 21, and the equalising torque in the time of can further guaranteeing compressor 100 running according to different situations thus.
Particularly, in example as shown in Figure 4 b, magnet 122 comprises four, four magnets 122 limit four gaps, wherein low-density embedded block 3 is two, balance weight 21 is two, two low-density embedded blocks 3 are located at respectively in two adjoining gaps, two balance weights 21 are located at respectively in two other two adjoining gaps, like this in example as shown in Figure 4 b, along the diameter on drawing rotor shell 121 above-below directions, rotor case 121 is divided into two, wherein in rotor case 121 left part, be provided with two low-density embedded blocks 3, in rotor case 121 right side parts, be provided with two balance weights 21, the weight in the left side of rotor 12 is less than the weight on right side like this, the effect of the moment in the time of can playing thus 100 running of balance compressor.
As shown in Fig. 7 a and Fig. 7 b, according to another kind of embodiment of the present utility model, balanced structure 2 can also be groove 22.Groove 22 is located on rotor case 121, and its further groove 22 forms at least a portion of balanced structure 2.Groove 22 can form on the outer wall of rotor case 121, and groove 22 also can be formed on the inwall of rotor case 121.It can be also a plurality of that groove 22 can be one, the spaced apart setting on rotor case 121 of a plurality of grooves 22.
As shown in Figure 7b, in this example, groove 22 is along the outer wall spiral of rotor case 121, and its further groove 22 can be left-handed, also can be dextrorotation.By this groove 22 is set, also can play the effect of the eccentric moment of balance rotating portion, wherein the shape of groove 22, size and setting position etc. can be determined as the case may be particularly, so that reach the object of trimming moment because the quality of the rotor case 121 that groove 22 structures reduce is set.
In addition, groove 22 also can play the effect of spill port, can avoid machine oil accumulating on drive division.Advantageously, groove 22 is communicated with upper surface and the lower surface of rotor case 121, so that air-flow enters groove 22.The rotary orientation of groove 22 can design as the case may be, when rotor assembly 12 rotation, just can produce power downward or upward, if produce downward power when rotor assembly 12 rotation, can further avoid the upper and lower play of rotating part; When if the downward electromagnet pull that rotor assembly 12 and stator are 11 is excessive, the rotation direction of capable of regulating helical groove 22, produces power upwards while allowing it work as rotor assembly 12 rotation, for reducing the power consumption of compressor 100, improves the performance of compressor 100.
Certainly can understand, in a compressor 100, balanced structure 2 can be only balance weight 21, can be only also groove 22; In a compressor 100, balanced structure 2 can be also the structure that balance weight 21 adds groove 22.Can determine according to actual conditions particularly.
According to other configuration examples of the compressor 100 of the utility model embodiment, if cylinder, bent axle, upper bearing (metal), lower bearing etc. and operation are all known for those of ordinary skills, no longer describe in detail here.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " 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 embodiment 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 embodiment, 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:
External rotor electric machine, described external rotor electric machine comprises stator and rotor assembly, described rotor assembly is located at the outside and rotatable around the axis of described stator of described stator, and described rotor assembly comprises rotor case and magnet, and described magnet is located on the inwall of described rotor case; With
Balanced structure, described balanced structure is located on described rotor assembly.
2. the compressor with external rotor electric machine according to claim 1, is characterized in that, comprises balance weight, and described balance weight is located on described rotor case and/or described magnet, and described balance weight forms at least a portion of described balanced structure.
3. the compressor with external rotor electric machine according to claim 2, is characterized in that, described balance weight is located on the outer wall and/or inwall of described rotor case.
4. according to the compressor with external rotor electric machine described in any one in claim 2 or 3, it is characterized in that, it is barrel-shaped that described rotor case is configured to the unlimited cylinder in upper end or lower end, described rotor case comprises end plate and the side plate circumferentially arranging around described end plate, and described balance weight is located on described end plate and/or described side plate.
5. the compressor with external rotor electric machine according to claim 2, is characterized in that, described balance weight is plate shaped, step, crescent, strip or annular.
6. the compressor with external rotor electric machine according to claim 2, is characterized in that, described balance weight and described rotor case are integrally formed.
7. the compressor with external rotor electric machine according to claim 2, is characterized in that, described magnet comprises circumferential spaced a plurality of around described rotor case inwall, and described balance weight is located between two adjacent described magnets.
8. the compressor with external rotor electric machine according to claim 7, it is characterized in that, also comprise low-density embedded block, the density of described low-density embedded block is less than the density of described balance weight, and described low-density embedded block is located between two adjacent described magnets.
9. the compressor with external rotor electric machine according to claim 1, is characterized in that, described rotor case is provided with groove, and described groove forms at least a portion of described balanced structure.
10. the compressor with external rotor electric machine according to claim 9, is characterized in that, described groove is communicated with upper surface and the lower surface of described rotor case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420324388.6U CN203967937U (en) | 2014-06-17 | 2014-06-17 | The compressor with external rotor electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420324388.6U CN203967937U (en) | 2014-06-17 | 2014-06-17 | The compressor with external rotor electric machine |
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| Publication Number | Publication Date |
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| CN203967937U true CN203967937U (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420324388.6U Expired - Lifetime CN203967937U (en) | 2014-06-17 | 2014-06-17 | The compressor with external rotor electric machine |
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| CN (1) | CN203967937U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870366A (en) * | 2015-12-11 | 2017-06-20 | 上海日立电器有限公司 | A kind of outer rotor rolling piston compressor |
| CN109555697A (en) * | 2019-01-21 | 2019-04-02 | 宁波拉德驱动技术有限公司 | A kind of compressor external rotor electric machine |
| CN110500280A (en) * | 2019-09-23 | 2019-11-26 | 珠海凌达压缩机有限公司 | Balance block structure and compressor thereof |
| CN110761967A (en) * | 2018-07-27 | 2020-02-07 | 广东美芝制冷设备有限公司 | Compressor with a compressor housing having a plurality of compressor blades |
-
2014
- 2014-06-17 CN CN201420324388.6U patent/CN203967937U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870366A (en) * | 2015-12-11 | 2017-06-20 | 上海日立电器有限公司 | A kind of outer rotor rolling piston compressor |
| CN110761967A (en) * | 2018-07-27 | 2020-02-07 | 广东美芝制冷设备有限公司 | Compressor with a compressor housing having a plurality of compressor blades |
| CN109555697A (en) * | 2019-01-21 | 2019-04-02 | 宁波拉德驱动技术有限公司 | A kind of compressor external rotor electric machine |
| CN110500280A (en) * | 2019-09-23 | 2019-11-26 | 珠海凌达压缩机有限公司 | Balance block structure and compressor thereof |
| CN110500280B (en) * | 2019-09-23 | 2023-12-08 | 珠海凌达压缩机有限公司 | Balance weight structure and compressor thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141126 |