CN212811434U - A novel assembly structure for motor in compressor - Google Patents
A novel assembly structure for motor in compressor Download PDFInfo
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- CN212811434U CN212811434U CN202021977693.7U CN202021977693U CN212811434U CN 212811434 U CN212811434 U CN 212811434U CN 202021977693 U CN202021977693 U CN 202021977693U CN 212811434 U CN212811434 U CN 212811434U
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Abstract
The utility model relates to a novel assembly structure for motor in compressor, the main structure of this kind of assembly methods sets up the inside intercommunication chamber of intercommunication compressor annular housing including the cover compressor annular housing outside the motor and the wiring board seat of whole casting on annular housing on the wiring board seat, intercommunication intracavity wall extends the enhancement boss that is used for fixed motor stator, be equipped with the installation component who is used for connecting motor casing on the enhancement boss, the installation component radially sets up along annular housing. The motor stator is fixed in the annular shell of the compressor in a clearance fit mode through the connection of the mounting assembly.
Description
Technical Field
The application relates to the field of compressors, in particular to a novel assembling structure for a motor in a compressor.
Background
The semi-closed refrigeration compressor has compact structure, the compressor and the motor shell are cast into a whole by cast iron with higher strength, the inner cavities are communicated, the leakage caused by the arrangement of a shaft seal is avoided, and the motor winding is cooled by the sucked low-pressure low-temperature wet steam, so that the output is increased. The small and medium-sized semi-closed compressor motor stator and the machine body produced in China in recent years mostly adopt interference fit, which is more suitable for the characteristic that the bearing amplitude of a refrigerating system is larger, wherein the interference fit assembly is roughly divided into two types: one is hot assembly, heating the shell of the compressor by adopting an oven or a heating device to slightly expand the size of the shell, then installing the motor stator into a motor cavity of the machine body, and after the shell of the motor is cooled, performing interference fit on the shell and the motor stator; the other type is cold pressing assembly, the motor stator is pressed into a motor cavity of the machine body on a hydraulic machine by utilizing a tool for the piezoelectric motor stator, and the cold pressing premise is that proper interference magnitude needs to be designed, the interference magnitude is too small, the motor cannot normally work, the interference magnitude is too large, and the motor can be damaged when the motor is cold pressed. When a refrigeration compressor is in phase-loss operation, locked rotor or coil insulation failure and other reasons of a system to cause short circuit and open circuit damage of a winding coil, a motor generally needs to be replaced with a new winding in the repair of the compressor, the motor adopting interference fit is very inconvenient to replace, a hydraulic machine and a corresponding tool for a piezoelectric machine are not arranged at a user use position, an oven or a suitable heating device is not arranged, and the compressor complete machine needing to be replaced is returned to a company for replacement under the existing condition.
In view of the above background, the inventor believes that the existing motor assembly method has the defects of difficult replacement or maintenance after the motor is damaged, very expensive maintenance cost and the like.
SUMMERY OF THE UTILITY MODEL
In order to improve the problem of change or maintenance difficulty after the compressor motor damages, this application provides a novel assembly structure for motor in compressor.
The application provides a novel assembly structure for motor in compressor adopts following technical scheme:
the utility model provides a novel assembly structure for motor in compressor, the major structure of this kind of fixed mode is including the cover locate the outer compressor annular casing of motor and the wiring board seat of fixed connection on annular casing, sets up the inside intercommunication chamber of intercommunication compressor annular casing on the wiring board seat, intercommunication intracavity wall extends the enhancement boss that is used for fixed motor stator, be equipped with the installation component that is used for connecting motor casing on the enhancement boss, the installation component radially sets up along annular casing.
Through adopting above-mentioned technical scheme, through the connection of installation component, make the motor assemble in compressor ring casing with clearance fit's form. When needs maintain the maintenance, can dismantle the power of being connected of installation component to the motor, then directly take out the motor from the annular housing to let the user can be convenient oneself maintain, need not keep in repair the whole producer that sends back of compressor, practiced thrift cost of maintenance.
Preferably, a connecting hole is formed in the reinforcing boss and penetrates through the reinforcing boss, the mounting assembly comprises an internal thread cylindrical pin and a flat-end external thread inner hexagonal jacking screw, the internal thread cylindrical pin is used for being radially inserted into the motor stator along the motor stator, the flat-end external thread inner hexagonal jacking screw is used for sealing the upper end of the connecting hole and preventing the internal thread cylindrical pin from popping out, and the internal thread cylindrical pin is embedded in the connecting hole.
Through adopting above-mentioned technical scheme, the internal thread cylindric lock can play the effect to motor stator axial and radial spacing. The flat-end external thread inner hexagonal jacking screw can play a role in sealing the connecting hole, and prevent the internal thread cylindrical pin from falling out of the connecting hole, so that the internal thread cylindrical pin can play a role in limiting stably.
Preferably, the internal thread cylindrical pin and the flat end external thread inner hexagonal jacking screw are arranged in a jacking mode.
Through adopting above-mentioned technical scheme, can prevent that both from appearing interfering, make the internal thread cylindric lock and flat end external screw thread socket head cap screw install on the position that needs the installation more smoothly.
Preferably, the connecting hole includes screw hole and pinhole, the screw hole is located the pinhole and keeps away from annular casing center one side and communicate the pinhole, the internal thread cylindric lock inlays and locates in the pinhole, flat end external screw thread socket head cap screw threaded connection is in the screw hole, first force application groove has been seted up on the flat end external screw thread socket cap screw.
By adopting the technical scheme, the flat-end external thread inner hexagonal jacking screw can be connected on the reinforced boss more stably. And when the motor needs to be maintained and replaced, the flat-end external thread inner hexagonal jacking screw can be unscrewed, and the internal thread cylindrical pin is taken out, so that the motor stator loses the limiting force, and the motor can be conveniently taken out from the motor cavity of the compressor.
Preferably, the radius of the threaded hole is larger than the radius of the pin hole.
Through adopting above-mentioned technical scheme to make the internal thread cylindric lock can be convenient insert motor stator in through the pinhole, can not influenced by the screw hole.
Preferably, a second force application groove used for conveniently applying force to the internal thread cylindrical pin is formed in one end, far away from the motor stator, of the internal thread cylindrical pin.
Through adopting above-mentioned technical scheme, accessible second application of force groove comes internal thread cylindric lock application of force to conveniently insert the internal thread cylindric lock in the pinhole or extract from the pinhole.
Preferably, the second force application groove is a screw groove.
By adopting the technical scheme, when the internal thread cylindrical pin needs to be pulled out, the threaded rod can be screwed into the internal thread cylindrical pin, then the internal thread cylindrical pin is applied with force by applying force to the threaded rod, and the internal thread cylindrical pin can be conveniently pulled out from the pin hole in the motor stator.
Preferably, the outer edge of the lower end of the cylindrical pin with the internal thread is provided with a chamfer.
By adopting the technical scheme, the reinforced internal thread cylindrical pin can be more reliably and conveniently inserted into the reinforced boss pin hole and the motor stator pin hole.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the motor can be reliably assembled in the motor cavity of the shell of the compressor;
2. the limiting force of the compressor shell to the motor stator can be conveniently removed, and the motor is convenient to maintain and replace.
Drawings
FIG. 1 is a novel assembly for a large four and six cylinder compressor motor.
Fig. 2 is a novel assembly for a four cylinder compressor motor.
FIG. 3 is a cross-sectional view of the novel assembly for a large four and six cylinder compressor motor;
fig. 4 is a partial schematic view of fig. 3.
Description of reference numerals: 1. a motor stator; 2. a limit pin hole; 3. an annular housing; 4. a wiring board seat; 5. a communicating cavity; 6. reinforcing the boss; 7. connecting holes; 8. a threaded hole; 9. a pin hole; 10. an internal threaded cylindrical pin; 11. the flat end external thread inner hexagonal jacking screw; 12. a first force application groove; 13. a second force application groove; 14. and (6) mounting the assembly.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
As shown in fig. 1 and 3, the motor includes a motor stator 1, and a limit pin hole 2 is formed in the motor stator 1.
The embodiment of the application discloses a novel assembly structure for a motor in a compressor. Referring to fig. 1, the novel assembly structure comprises a compressor annular shell 3 sleeved outside a motor and a wiring board seat 4 integrally cast on the compressor annular shell 3, wherein a communicating cavity 5 communicated with the inside of the compressor annular shell 3 is formed in the wiring board seat 4, the inner wall of the communicating cavity 5 extends to form a reinforcing boss 6 used for fixing a motor stator, and a mounting assembly 14 used for connecting the motor stator 1 is arranged on the reinforcing boss 6. The motor stator 1 is fixed in the compressor annular shell 3 by installing the motor stator in a clearance fit mode in the compressor annular shell 3 and then inserting the internally threaded cylindrical pin 10 in the installation assembly 14 into the limiting pin hole 2 of the motor stator 1.
Specifically, as shown in fig. 3 and 4, the reinforcing boss 6 is provided with a connecting hole 7, and the connecting hole 7 penetrates through the reinforcing boss 6. The connecting hole 7 comprises a threaded hole 8 and a pin hole 9, the threaded hole 8 is positioned on the upper side of the pin hole 9 and is communicated with the pin hole 9, and the radius of the threaded hole 8 is larger than that of the pin hole 9.
As shown in fig. 3 and 4, the mounting assembly 14 includes an internally threaded cylindrical pin 10 for being inserted into the motor stator 1 in a radial direction of the motor stator 1 and a flat-ended externally threaded socket head cap screw 11 for closing the coupling hole 7 and preventing the internally threaded cylindrical pin 10 from popping out. The internal thread cylindric lock 10 is the cylinder type, and internal thread cylindric lock 10 lower extreme outward flange is equipped with the chamfer. One part of the internal thread cylindrical pin 10 is embedded in the pin hole 9, and the other part is embedded in the limit pin hole 2 of the motor stator 1. The internally threaded cylindrical pin 10 thus serves to connect together the motor stator 1 and the compressor annular housing 3. In order to prevent the internal thread cylindrical pin 10 from falling out of the connecting hole 7, the flat-end external thread inner hexagonal jacking screw 11 is in threaded connection with the threaded hole 8, a first force application groove 12 is formed in the flat-end external thread inner hexagonal jacking screw 11, and the first force application groove 12 is hexagonal. After the installation is finished, the internal thread cylindrical pin 10 and the flat end external thread inner hexagonal jacking screw 11 are arranged in a jacking mode.
As shown in fig. 3 and 4, in order to facilitate the replacement or maintenance of the motor, the motor is taken out of the compressor annular housing 3, and a second force application groove 13 for facilitating the application of force to the internal threaded cylindrical pin 10 is formed at one end of the internal threaded cylindrical pin 10, which is far away from the motor stator 1. The second force application groove 13 is a screw groove. When the internal thread cylindrical pin 10 needs to be pulled out, the threaded rod can be screwed on the internal thread cylindrical pin 10, then the force is applied to the internal thread cylindrical pin 10 by applying force to the threaded rod, and therefore the internal thread cylindrical pin 10 can be conveniently pulled out from the motor electron 1 and the pin hole 9.
The implementation principle of the novel assembly method for the motor in the compressor provided by the embodiment of the application is as follows:
1. when the motor is installed, the motor is pushed into a motor cavity of the annular shell 3 of the compressor in a clearance fit mode, the internal thread cylindrical pin 10 is inserted into the pin hole 9 and the limiting pin hole 2 of the motor stator 1, and then the external thread inner hexagonal jacking screw 11 at the flat end is screwed on the connecting hole 7; at the moment, the internal thread cylindrical pin 10 can play a role in axial and radial limiting, and the motor stator 1 and the compressor annular shell 3 are stably connected together;
2. when the motor needs to be maintained or replaced and is detached from the motor cavity of the annular shell 3 of the compressor, the inner hexagonal jacking screw 11 with the external threads at the flat end can be applied with force through the inner hexagonal wrench, and the inner hexagonal jacking screw 11 with the external threads at the flat end is detached; then the threaded rod is screwed in the second force application groove 13, the internal thread cylindrical pin 10 is pulled out from the limiting pin hole 2 and the pin hole 9 by applying force to the threaded rod, so that the motor loses the limiting force of the internal thread cylindrical pin 10 to the motor, and the motor can be more conveniently detached for maintenance or replacement.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A novel assembly structure for motor in compressor which characterized in that: locate outer compressor annular casing (3) of motor stator and wiring board seat (4) of fixed connection on annular casing (3) including the cover, set up intercommunication chamber (5) inside intercommunication annular casing (3) on wiring board seat (4), intercommunication chamber (5) inner wall extends and is used for strengthening boss (6) of fixed motor stator (1), be equipped with installation component (14) that are used for connecting motor stator (1) on strengthening boss (6), installation component (14) radially set up along annular casing (3).
2. The new assembling structure of the motor for the compressor according to claim 1, wherein: the reinforcing boss (6) is provided with a connecting hole (7), the connecting hole (7) penetrates through the reinforcing boss (6), the mounting assembly (14) comprises an internal thread cylinder (10) which is used for being radially inserted into the motor stator (1) along the motor stator (1) and a flat-end external thread inner hexagonal jacking screw (11) which is used for sealing the upper end of the connecting hole (7) and preventing the internal thread cylinder pin (10) from popping up, and the internal thread cylinder pin (10) is embedded in the connecting hole (7).
3. The new assembling structure of the motor for the compressor according to claim 2, wherein: the internal thread cylindrical pin (10) and the flat end external thread inner hexagonal jacking screw (11) are arranged in a jacking mode.
4. The new assembling structure of the motor for the compressor according to claim 2, wherein: the connecting hole (7) comprises a threaded hole (8) and a pin hole (9), the threaded hole (8) is located in the upper portion of the pin hole (9) and is communicated with the pin hole (9), the internal thread cylindrical pin (10) is embedded in the pin hole (9), the flat-end external thread inner hexagonal jacking screw (11) is in threaded connection with the threaded hole (8), and a first force application groove (12) is formed in the flat-end external thread inner hexagonal jacking screw (11).
5. The new assembling structure of the motor for the compressor according to claim 4, wherein: the radius of the threaded hole (8) is larger than that of the pin hole (9).
6. The new assembling structure of the motor for the compressor according to claim 4, wherein: and a second force application groove (13) for conveniently taking out the internal thread cylindrical pin (10) is formed in one end, far away from the motor stator (1), of the internal thread cylindrical pin (10).
7. The new assembling structure of the motor for the compressor according to claim 6, wherein: the second force application groove (13) is a thread groove.
8. The new assembling structure of the motor for the compressor according to claim 2, wherein: and a chamfer is arranged on the outer edge of the lower end of the internal thread cylindrical pin (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021977693.7U CN212811434U (en) | 2020-09-10 | 2020-09-10 | A novel assembly structure for motor in compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021977693.7U CN212811434U (en) | 2020-09-10 | 2020-09-10 | A novel assembly structure for motor in compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212811434U true CN212811434U (en) | 2021-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021977693.7U Active CN212811434U (en) | 2020-09-10 | 2020-09-10 | A novel assembly structure for motor in compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212811434U (en) |
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2020
- 2020-09-10 CN CN202021977693.7U patent/CN212811434U/en active Active
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