CN203962325U - There is the compressor of external rotor electric machine - Google Patents
There is the compressor of external rotor electric machine Download PDFInfo
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- CN203962325U CN203962325U CN201420363353.3U CN201420363353U CN203962325U CN 203962325 U CN203962325 U CN 203962325U CN 201420363353 U CN201420363353 U CN 201420363353U CN 203962325 U CN203962325 U CN 203962325U
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- bearing
- compressor
- electric machine
- mainframe
- stator
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- 239000006096 absorbing agent Substances 0.000 claims description 12
- 230000035939 shock Effects 0.000 claims description 12
- 238000003466 welding Methods 0.000 abstract description 28
- 238000000034 method Methods 0.000 abstract description 11
- 239000000463 material Substances 0.000 description 8
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 229910000976 Electrical steel Inorganic materials 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000002360 explosive Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- 241000276425 Xiphophorus maculatus Species 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000009497 press forging Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
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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, described bearing is located on described mainframe; Motor, described motor comprises stator and the rotor that is located at described stator outside, described stator sleeve is located on the outer circumferential face of described bearing; Bent axle, described bent axle is through described bearing and described rotor, and described rotor drives described crankshaft rotating; And connecting rod, described connecting rod is connected with described bent axle.According to the utility model embodiment's the compressor with external rotor electric machine, the good welding performance of bearing and stator, welding procedure is simple, prevents the risk that stator comes off, and the rate of can reducing the number of rejects and seconds, and reduces costs.
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, thus paid close attention to by increasing compressor producer.
Traditional external rotor electric machine, need be fixed on stator on mainframe, generally can adopt interference to cold pressing and welding two kinds of modes in gap are fixed, and makes that stator is on-stream can not rotate with rotor.After these two kinds of means of fixation all exist larger defect: a, interference to cold pressing, mainframe endoporus, because pressure-acting produces distortion, can produce more severe wearing and tearing when the rotation of bent axle in mainframe endoporus; B, be easy to process, mainframe is generally cast as an entirety by crankshaft hole and cylinder-bore, material is gray cast iron, and stator material is electrical steel, the non-constant of welding performance of cast iron and silicon steel, welding procedure is difficult for grasping, and can not ensure the welding quality of mainframe and inner stator, the risk that exists inner stator to come off.
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, the good welding performance of this bearing of compressor and stator, and welding procedure is simple, prevents the risk that stator comes off, and the rate of can reducing the number of rejects and seconds, and reduces costs.
According to the compressor with external rotor electric machine of the present utility model, comprising: housing; Mainframe, described mainframe is located in described housing; Bearing, described bearing is located on described mainframe; Motor, described motor comprises stator and the rotor that is located at described stator outside, described stator sleeve is located on the outer circumferential face of described bearing; Bent axle, described bent axle is through described bearing and described rotor, and described rotor drives described crankshaft rotating; And connecting rod, described connecting rod is connected with described bent axle.
In prior art, be formed in one structure and be ironcasting of bearing and mainframe, and stator is electrical steel part, and stator and bearing welding performance are poor, and welding procedure is difficult for grasping, and can not ensure the quality of welding.According to compressor of the present utility model, by bearing and mainframe are designed to Split type structure, thereby can utilize the material of good welding performance to manufacture bearing, improve thus the welding performance of bearing and stator, reduce the difficulty of welding procedure, and then can ensure the quality of welding, prevent the risk that stator comes off.In addition, be Split type structure by making bearing and mainframe, bearing and mainframe can be manufactured respectively like this, thereby can reduce the manufacture difficulty of bearing and mainframe, promote the structural behaviour of bearing and mainframe, and then improve structure stability and the working life of compressor.And bearing and mainframe manufacture respectively, thereby can reduce the number of rejects and seconds rate, reduce costs.
In addition, also can there is following additional technical feature according to the compressor with external rotor electric machine of the present utility model:
According to an embodiment of the present utility model, described bearing is from described mainframe to downward-extension, and described rotor is U-shaped on its axial cross section, and described rotor is set in the bottom of described stator.
According to an embodiment of the present utility model, described mainframe comprises: main part, and described bearing is located on described main part; Erection column, described erection column is from the lower end of described main part to downward-extension, and described erection column is connected with described housing.
According to an embodiment of the present utility model, described erection column comprises multiple and arranges in the circumferential direction of described main part.
According to an embodiment of the present utility model, described erection column is four and is evenly arranged in the circumferential direction of described main part.
According to an embodiment of the present utility model, described compressor also comprises shock absorber, and described shock absorber is located at the bottom of described erection column and is connected with described housing.
According to an embodiment of the present utility model, described bearing is connected on described main part by fastening piece.
According to an embodiment of the present utility model, described bearing is provided with the first positioning hole, and described main part is provided with the second positioning hole, described fastening piece through described the first positioning hole and described the second positioning hole so that described bearing is connected on described main part.
According to an embodiment of the present utility model, the outer circumferential face of described bearing 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, one end away from described bearing of described connecting rod is spherical.
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.
Brief description of the drawings
Above-mentioned and/or additional aspect of the present utility model and advantage accompanying drawing below combination is understood becoming embodiment's description obviously and easily, 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 mainframe of the compressor shown in Fig. 1 and the explosive view of bearing;
Fig. 4 is the mainframe of the compressor shown in Fig. 1 and the sectional view of bearing;
Fig. 5 is the stator of the compressor shown in Fig. 1 and the sectional view of bearing;
Fig. 6 is the sectional view of bent axle, bearing and the rotor of the compressor shown in Fig. 1;
Fig. 7 is the explosive view of bent axle, connecting rod and the piston of the compressor shown in Fig. 1.
Description of reference numerals
Compressor 100;
Housing 1;
Mainframe 2; Main part 21; The second positioning hole 211; Erection column 22; Compression chamber limited section 23; Compression chamber 231;
Bearing 3; Locating slot 31; Shaft through-hole 32; The first positioning hole 33;
Motor 4; Stator 41; Positioning block 411; Rotor 42;
Bent axle 5; Connecting rod 6; Piston 7; Receiving groove 71; Shock absorber 8; Fastening piece 9.
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.Be exemplary below by the embodiment who is described with reference to the drawings, 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 instructions 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, instead of device or the element of instruction 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 instruction 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 " multiple " 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.
Describe according to the utility model embodiment's the compressor with external rotor electric machine 100 below with reference to Fig. 1-Fig. 7.First it should be noted that, can, in any chiller plant, especially, be specially adapted to refrigerator system according to compressor 100 of the present utility model according to the utility model embodiment's compressor 100, particularly, this compressor 100 can be piston compressor 100.
As shown in Fig. 1-Fig. 7, according to the utility model embodiment's compressor 100, comprise housing 1, mainframe 2, bearing 3, motor 4, bent axle 5 and connecting rod 6, compressor 100 also comprises piston 7 in addition.As shown in Figure 1, mainframe 2, bearing 3, motor 4, bent axle 5, connecting rod 6 and piston 7 are all located in housing 1.
Bearing 3 is located on mainframe 2, it should be explained that here, and bearing 3 is Split type structure with mainframe 2, and bearing 3 is assembled after manufacturing respectively with mainframe 2 again.Alternatively, bearing 3 can be arbitrarily with the assembling mode of mainframe 2, for example bearing 3 can be connected by dismountable mode with mainframe 2, such as fastening piece connection, buckle structure connection etc., certainly bearing 3 also can be connected by non-removable mode with mainframe 2, such as welding, interference fit, bonding etc.
Wherein, on mainframe 2, can be formed with compression chamber 231, piston 7 is located in compression chamber 231.Motor 4 comprises stator 41 and is located at the rotor 42 of stator 41 outsides, bent axle 5 is through bearing 3 and rotor 42, and particularly, bearing 3 is provided with for the shaft through-hole 32 through bent axle 5, as shown in Figure 3-Figure 5, bent axle 5 is through this shaft through-hole 32 and interior free to rotate at this shaft through-hole 32.Rotor 42 is with dynamic crankshaft 5 to rotate, and rotor 42 is fixed on bent axle 5, and wherein, rotor 42 can be arbitrarily with the means of fixation of bent axle 5, for example, can connect by welding, interference fit or bonding mode, relative fixing to ensure between rotor 42 and bent axle 5.
Connecting rod 6 is connected with bent axle 5, connecting rod 6 is connected with the top of bent axle 5 particularly, one end away from bent axle 5 of connecting rod 6 is connected with piston 7, bent axle 5 spinning movement under the drive of rotor 42 like this, change into the to-and-fro motion of piston 7 through the effect of connecting rod 6, and then reach the object of compressing in piston 7.
Wherein, stator 41 is set on the outer circumferential face of bearing 3, and wherein stator 41 is arbitrarily with the Placement of bearing 3.For example stator 41 and bearing 3 can be connected by welding, interference fit or bonding mode.In order to reach more stable linkage structure, preferably, stator 41 is connected by the mode of welding with bearing 3.
In prior art, be formed in one structure and be ironcasting of bearing and mainframe, and stator is electrical steel part, and stator and bearing welding performance are poor, and welding procedure is difficult for grasping, and can not ensure the quality of welding.According to the utility model embodiment's compressor 100, by bearing 3 and mainframe 2 are designed to Split type structure, thereby can utilize the material of good welding performance to manufacture bearing 3, improve thus the welding performance of bearing 3 and stator 41, reduce the difficulty of welding procedure, and then can ensure the quality of welding, prevent the risk that stator 41 comes off.In addition, be Split type structure by making bearing 3 and mainframe 2, bearing 3 and mainframe 2 can be manufactured respectively like this, thereby can reduce the manufacture difficulty of bearing 3 and mainframe 2, promote the structural behaviour of bearing 3 and mainframe 2, and then improve structure stability and the working life of compressor 100.And bearing 3 manufactures respectively with mainframe 2, thereby can reduce the number of rejects and seconds rate, reduce costs.
Particularly, bearing 3 can be non-ironcasting, and such as bearing 3 can be press forging, metallic sintered products, stamping part, forge piece etc.Preferably, bearing 3 is identical with the manufactured materials of stator 41, and processing technology can be identical, can further improve thus the welding performance of bearing 3 and stator 41, welding procedure is simpler, improves yield rate, and then can make the structural behaviour of compressor 100 better.
As Figure 1-Figure 4, in embodiments more of the present utility model, bearing 3 is from mainframe 2 to downward-extension, and bearing 3 can be located at the bottom of mainframe 2.Particularly, bearing 3 can be connected by fastening piece 9 with mainframe 2, and fastening piece 9 can be for example bolt or rivet, in example example as shown in Figures 2 and 3, bearing 3 is connected by three bolts with mainframe 2, can make thus bearing 3 more stable with being connected of mainframe 2.As shown in Fig. 1 and Fig. 6, rotor 42 is U-shaped on its axial cross section, rotor 42 is solid of rotation and it is opening up, rotor 42 is set in the bottom of stator 41, bearing 3 is through the underpart of rotor 42, can make like this rotor 42 more stable in rotation process, stressed more even, the startability of compressor 100 is better.
In an embodiment of the present utility model, as shown in Figure 3 and Figure 4, mainframe 2 comprises main part 21 and erection column 22.Bearing 3 is located on main part 21, and particularly, bearing 3 can be connected on main part 21 by fastening piece 9.Further, as shown in Fig. 3-Fig. 6, bearing 3 is provided with the first positioning hole 33, main part 21 is provided with the second positioning hole 211, fastening piece 9 so that bearing 3 is connected on main part 21, can make the connection of bearing 3 on main part 21 through the first positioning hole 33 and the second positioning hole 211 thus, it is convenient, accurate to locate.
Main part 21 can be roughly platy structure, and bearing 3 is located at the middle part of main part 21.Main part 21 tops are provided with compression chamber limited section 23, and compression chamber 231 is formed in compression chamber limited section 23.Erection column 22 is from the lower end of main part 21 to downward-extension, and erection column 22 is connected with housing 1, that is to say, the upper end of erection column 22 is connected with the lower end of main part 21, and the lower end of erection column 22 is connected with housing 1.Advantageously, erection column 22 and main part 21 structure that is formed in one, can make erection column 22 large with the join strength of main part 21 thus, and linkage structure is more stable.
Alternatively, erection column 22 comprises that multiple and multiple erection columns 22 arrange in the circumferential direction of main part 21.In example as shown in Figures 2 and 3, erection column 22 is that four and four erection columns 22 are evenly arranged in the circumferential direction of main part 21, can make thus erection column 22 more stable to the supporting effect of main part 21, stressed more even.
In preferred exemplary more of the present utility model, as depicted in figs. 1 and 2, compressor 100 also comprises shock absorber 8, shock absorber 8 is located at the bottom of erection column 22 and is connected with housing 1, that is to say, erection column 22 is connected with housing 1 by shock absorber 8, particularly, the upper end of shock absorber 8 is connected with the bottom of erection column 22, and the lower end of shock absorber 8 is connected with housing 1.By shock absorber 8 is set, thereby can play buffer function, thereby the vibration can further slow down compressor 100 and start time reduces noise, extends the working life of compressor 100.Particularly, shock absorber 8 can be multiple and equate with the number of erection column 22.
In embodiments more of the present utility model, on the outer circumferential face of bearing 3, can be provided with locating slot 31, stator 41 is provided with positioning block 411, positioning block 411 coordinates with locating slot 31, the accurate positioning between stator 41 and bearing 3 can be ensured thus, and then the axial position of stator 41 and rotor 42 can be ensured.Particularly, locating slot 31 can be two and be oppositely arranged on the outer circumferential face of bearing 3, positioning block 411 is also two and is located at the inner of stator 41, in the time of assembling, first two positioning blocks 411 are positioned in two locating slots 31, then adjust the relative position of bearing 3 and stator 41, and then complete the assembling of stator 41 and bearing 3.In another embodiment as shown in Figure 1, locating slot 31 can also arrange around the outer circumferential face of bearing 3 for one week, and positioning block 411 also can arrange around the inner of stator 41 for one week, can make thus the structure of positioning block 411 and locating slot 31 more stable.
In embodiments more of the present utility model, as shown in Figure 7, one end away from bearing 3 of connecting rod 6 is spherical, spherical like this one end extend into piston 7 when interior, connecting rod 6 can freely rotate around spherical one end to a certain extent, can overcome thus that bearing 3 is connected with mainframe 2 and the form and position tolerance that produces ensures the normal to-and-fro motion of piston 7.Particularly, be limited with and the receiving groove 71 of spherical one end form fit of bearing 3 in piston 7, as shown in Figure 7, spherical one end of bearing 3 extend in this receiving groove 71 can not deviate from, and can at this, receiving groove 71 is interior freely rotates.
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 specific features, structure, material or the feature of description can be with suitable mode combination 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, amendment, 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, described bearing is located on described mainframe;
Motor, described motor comprises stator and the rotor that is located at described stator outside, described stator sleeve is located on the outer circumferential face of described bearing;
Bent axle, described bent axle is through described bearing and described rotor, and described rotor drives described crankshaft rotating; And
Connecting rod, described connecting rod is connected with described bent axle.
2. the compressor with external rotor electric machine according to claim 1, is characterized in that, described bearing is from described mainframe to downward-extension, and described rotor is U-shaped on its axial cross section, and described rotor is set in the bottom of described stator.
3. the compressor with external rotor electric machine according to claim 1, is characterized in that, described mainframe comprises:
Main part, described bearing is located on described main part;
Erection column, described erection column is from the lower end of described main part to downward-extension, and described erection column is connected with described housing.
4. the compressor with external rotor electric machine according to claim 3, is characterized in that, described erection column comprises multiple and arranges in the circumferential direction of described main part.
5. the compressor with external rotor electric machine according to claim 4, is characterized in that, described erection column is four and is evenly arranged in the circumferential direction of described main part.
6. the compressor with external rotor electric machine according to claim 3, is characterized in that, described compressor also comprises shock absorber, and described shock absorber is located at the bottom of described erection column and is connected with described housing.
7. the compressor with external rotor electric machine according to claim 3, is characterized in that, described bearing is connected on described main part by fastening piece.
8. the compressor with external rotor electric machine according to claim 7, it is characterized in that, described bearing is provided with the first positioning hole, described main part is provided with the second positioning hole, described fastening piece through described the first positioning hole and described the second positioning hole so that described bearing is connected on described main part.
9. the compressor with external rotor electric machine according to claim 1, is characterized in that, the outer circumferential face of described bearing 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, one end away from described bearing of described connecting rod is spherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420363353.3U CN203962325U (en) | 2014-07-01 | 2014-07-01 | There is the compressor of external rotor electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420363353.3U CN203962325U (en) | 2014-07-01 | 2014-07-01 | There is the compressor of external rotor electric machine |
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| Publication Number | Publication Date |
|---|---|
| CN203962325U true CN203962325U (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420363353.3U Expired - Lifetime CN203962325U (en) | 2014-07-01 | 2014-07-01 | There is the compressor of external rotor electric machine |
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| CN (1) | CN203962325U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221388A (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 |
-
2014
- 2014-07-01 CN CN201420363353.3U patent/CN203962325U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221388A (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 |
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| CX01 | Expiry of patent term |
Granted publication date: 20141126 |