CN202220716U - Motor installation structure of refrigeration compressor - Google Patents
Motor installation structure of refrigeration compressor Download PDFInfo
- Publication number
- CN202220716U CN202220716U CN2011202415453U CN201120241545U CN202220716U CN 202220716 U CN202220716 U CN 202220716U CN 2011202415453 U CN2011202415453 U CN 2011202415453U CN 201120241545 U CN201120241545 U CN 201120241545U CN 202220716 U CN202220716 U CN 202220716U
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- China
- Prior art keywords
- rotor
- bent axle
- mounting bush
- installation
- refrigeration compressor
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Abstract
The utility model discloses a motor installation structure of a refrigeration compressor, which comprises a crankcase, a crank shaft, a connecting rod, a piston pin, a piston, a group value, a motor stator, a motor rotor, a rotor installation bushing, a support spring and a casing. The rotor installation bushing and the crank shaft are fixedly connected, and a sufficient length for matching installation is reserved between an inner hole of the rotor installation bushing and an outer circle of the crank shaft. The motor rotor and the rotor installation bushing are fixedly connected, and a sufficient length for matching installation is reserved between an inner hole of the motor rotor and an outer circle of the rotor installation bushing. When the refrigeration compressor is applied to a thin type motor, a sufficient length for matching installation is provided so that reliability of motor installation is ensured.
Description
Technical field
The utility model relates to a kind of electric motor mounting structure that is applied to refrigeration compressor.
Background technique
As shown in Figure 1; Reciprocating type bent axle-the linkage mechanism of the general employing of existing refrigeration compressor; Comprise crankcase 1, bent axle 2, connecting rod 3, wrist pin 4, piston 5, valve group 6, motor stator 7, rotor 8, supported spring 9 and housing 10, piston 5 is installed in the cylinder-bore of crankcase 1.During compressor operating, rotor 8 drives bent axle 2 and rotates, and it is reciprocating to drive piston 5 through connecting rod 3.Wherein motor stator 7 and crankcase 1 fixed installation, rotor 8 and bent axle 2 fixed installations.Crankcase 1 is provided with bearing 11 that bent axle 2 is installed and the leg 12 that motor stator 7 is installed.For guaranteeing compressor stable operation, bearing 11 designs longerly as far as possible.And be the cost of material that reduces compressor, reducing the complete machine height, the length of leg 12 designs shortly as far as possible.Therefore; Refrigeration compressor motor mounting structure shown in Figure 1; For guaranteeing the space that has one can hold bearing 11; Highly be to need to design a degree of depth installation that is H1 on the rotor 8 of H to step down, the installation length of thread engagement of rotor 8 and bent axle 2 is H2, and H2 is more than 10mm for the fitness for purpose length of thread engagement.Along with the continuous lifting of compressor design and technological level in recent years, refrigeration compressor progressively develops to miniaturization and high efficiency direction.In order to obtain the compressor product of lower complete machine height, need to use the less slim motor of height H value.Thus; The shortcoming that refrigeration compressor motor mounting structure shown in Figure 1 brings is: when the height H of rotor 8 descends; The installation length of thread engagement of rotor 8 and bent axle 2 is that H2 also descends thereupon, and reduces to 10mm when following as length of thread engagement H2, problems such as reliability decrease will occur.
Summary of the invention
The utility model technical problem to be solved is to propose a kind ofly can reduce the motor height significantly, can guarantee the electric motor mounting structure of the refrigeration compressor of motor installation reliability again.
For solving the problems of the technologies described above; The electric motor mounting structure of the utility model refrigeration compressor comprises crankcase, bent axle, connecting rod, wrist pin, piston, valve group, motor stator, rotor, rotor mounting bush, supported spring and housing; Said rotor mounting bush and said bent axle are fixedly linked, and between the endoporus of said rotor mounting bush and the said bent axle cylindrical enough installation length of thread engagement are arranged; Said rotor and said rotor mounting bush are fixedly linked, and between the endoporus of said rotor and the said rotor mounting bush cylindrical enough installation length of thread engagement are arranged.
The electric motor mounting structure of above-mentioned refrigeration compressor; Said rotor mounting bush is the recess Cylindrical object; Its diapire is provided with the bent axle perforation; Said bent axle passes this perforation and is fixedly linked with the inwall of said perforation, and the bearing lower end of said bent axle places in the recess of said rotor mounting bush, and the outer wall top of said rotor mounting bush and the inwall of said rotor are fixedly linked.
The electric motor mounting structure of above-mentioned refrigeration compressor, the installation length of thread engagement between the installation length of thread engagement between the endoporus of said rotor mounting bush and the said bent axle cylindrical and the endoporus of said rotor and the said rotor mounting bush cylindrical is respectively 10～30mm.
The utility model increases a rotor mounting bush owing to adopted above-mentioned technical pattern between rotor and the bent axle, when refrigeration compressor is used slim motor, enough installation length of thread engagement have just been arranged, thereby has guaranteed the reliability that motor is installed.
Description of drawings
Fig. 1 is the schematic representation of existing refrigeration compressor motor mounting structure;
Fig. 2 is the schematic representation of the utility model refrigeration compressor motor mounting structure.
Embodiment
As shown in Figure 2, the electric motor mounting structure of the utility model refrigeration compressor comprises crankcase 1, bent axle 2, connecting rod 3, wrist pin 4, piston 5, valve group 6, motor stator 7a, rotor 8a, rotor mounting bush 13, supported spring 9 and housing 10.Piston 5 is installed in the cylinder-bore of crankcase 1, and motor stator 7a and crankcase 1 are fixedly linked, and rotor 8a and rotor mounting bush 13 are fixedly linked, and rotor mounting bush 13 is fixedly linked with bent axle 2.During compressor operating, rotor 8a drives rotor mounting bush 13 and rotates with bent axle 2, and it is reciprocating to drive piston 5 through connecting rod 3.The height of rotor 8a is h, and it is H5 that the endoporus of rear motor rotor 8a and the installation fit dimension of rotor mounting bush 13 cylindricals are installed, and the installation fit dimension of the endoporus of rotor mounting bush 13 and bent axle 2 cylindricals is H6, and the installation of bearing 11 lets the bit depth be H1.Though bearing 11 lower end surfaces are very little to the distance H 3 of rotor 8a lower end surface; But because rotor mounting bush 13 assembling backs form the sinking length H4 of a relative rotor 8a lower end surface; Fit dimension H5 and fit dimension H6 have enough length like this, guarantee mounting stability.Installation length of thread engagement between installation length of thread engagement between the endoporus of rotor mounting bush 13 and bent axle 2 cylindricals and the endoporus of rotor 8a and rotor mounting bush 13 cylindricals can be selected in 10～30mm scope.
Claims (3)
1. the electric motor mounting structure of refrigeration compressor; Comprise crankcase, bent axle, connecting rod, wrist pin, piston, valve group, motor stator, rotor, supported spring and housing; It is characterized in that; It also comprises the rotor mounting bush, and said rotor mounting bush and said bent axle are fixedly linked, and between the endoporus of said rotor mounting bush and the said bent axle cylindrical enough installation length of thread engagement is arranged; Said rotor and said rotor mounting bush are fixedly linked, and between the endoporus of said rotor and the said rotor mounting bush cylindrical enough installation length of thread engagement are arranged.
2. the electric motor mounting structure of refrigeration compressor as claimed in claim 1; It is characterized in that; Said rotor mounting bush is the recess Cylindrical object, and its diapire is provided with bent axle perforation, and said bent axle passes this perforation and is fixedly linked with the inwall of said perforation; The bearing lower end of said bent axle places in the recess of said rotor mounting bush, and the outer wall top of said rotor mounting bush and the inwall of said rotor are fixedly linked.
3. according to claim 1 or claim 2 the electric motor mounting structure of refrigeration compressor; It is characterized in that the installation length of thread engagement between the installation length of thread engagement between the endoporus of said rotor mounting bush and the said bent axle cylindrical and the endoporus of said rotor and the said rotor mounting bush cylindrical is respectively 10～30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202415453U CN202220716U (en) | 2011-07-11 | 2011-07-11 | Motor installation structure of refrigeration compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202415453U CN202220716U (en) | 2011-07-11 | 2011-07-11 | Motor installation structure of refrigeration compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202220716U true CN202220716U (en) | 2012-05-16 |
Family
ID=46042743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202415453U Expired - Lifetime CN202220716U (en) | 2011-07-11 | 2011-07-11 | Motor installation structure of refrigeration compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202220716U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330655A (en) * | 2011-07-11 | 2012-01-25 | 加西贝拉压缩机有限公司 | Motor installation structure of refrigeration compressor |
| CN104279138A (en) * | 2014-10-22 | 2015-01-14 | 安徽美芝制冷设备有限公司 | Compressor |
-
2011
- 2011-07-11 CN CN2011202415453U patent/CN202220716U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330655A (en) * | 2011-07-11 | 2012-01-25 | 加西贝拉压缩机有限公司 | Motor installation structure of refrigeration compressor |
| CN104279138A (en) * | 2014-10-22 | 2015-01-14 | 安徽美芝制冷设备有限公司 | Compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120516 |