CN113113984B - Motor, compressor and refrigeration plant - Google Patents
Motor, compressor and refrigeration plant Download PDFInfo
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- CN113113984B CN113113984B CN202010033827.8A CN202010033827A CN113113984B CN 113113984 B CN113113984 B CN 113113984B CN 202010033827 A CN202010033827 A CN 202010033827A CN 113113984 B CN113113984 B CN 113113984B
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- stator
- clamping
- locking device
- compressor
- motor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
Abstract
The invention provides a motor, a compressor and refrigeration equipment, wherein the motor comprises: a stator; a locking device disposed on the stator, the locking device configured to limit radial deformation of the stator; the rotor at least partially extends into the stator and can rotate under the driving of the stator; and the crankshaft is connected with the rotor and can be driven by the rotor to rotate. According to the motor provided by the invention, the radial deformation of the stator is limited through the locking device, so that the electromagnetic noise caused by electromagnetic radial force waves can be effectively inhibited, and the effect of optimizing the noise is achieved.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a motor, a compressor and refrigeration equipment.
Background
During the use of the motor, the deformation of the stator in different orders has different natural frequencies, and when the frequency of the radial force wave is close to or equal to a certain natural frequency of the stator, resonance is caused. In this case, even if the amplitude of the radial force of the stator is not large, the stator may be deformed or periodically vibrated, which may generate large electromagnetic noise, which may affect the use of the motor and may respond to the service life of the motor.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art.
To this end, a first aspect of the invention provides an electrical machine.
A second aspect of the present invention provides a compressor.
In a third aspect, the present invention provides a refrigeration apparatus.
A first aspect of the invention provides an electric machine comprising: a stator; a locking device disposed on the stator, the locking device configured to limit radial deformation of the stator; the rotor at least partially extends into the stator and can rotate under the driving of the stator; and the crankshaft is connected with the rotor and can be driven by the rotor to rotate.
The motor provided by the invention comprises a stator, a locking device, a rotor and a crankshaft. The locking device is arranged on the stator and can limit radial deformation of the stator, resonance caused by different-order deformation of the stator in the working process of the motor is avoided, resonance response of the stator and radial force waves can be effectively reduced, electromagnetic noise caused by the electromagnetic radial force waves is effectively inhibited, and the effect of optimizing noise is achieved; the rotor extends into the stator at least partially and rotates under the drive of the stator so as to drive the crankshaft connected with the rotor to rotate and realize the output of torque.
According to the motor provided by the invention, the radial deformation of the stator is limited through the locking device, so that the electromagnetic noise caused by electromagnetic radial force waves can be effectively inhibited, and the effect of optimizing the noise is achieved.
The motor according to the above technical solution of the present invention may further have the following additional technical features:
in the above technical solution, the locking device includes: the clamping structure is clamped with the axial end face of the stator; and the connecting structure is arranged on the clamping structure and is abutted against the radial outer wall of the stator.
In the technical scheme, the locking device comprises a clamping structure and a connecting structure. The two ends of the clamping structure are respectively clamped with the axial end faces of the stator, so that the stable installation of the locking device and the stator is ensured, and the situation that the locking device falls off is avoided; the connecting structure is arranged on the clamping structure and is abutted against the radial outer wall of the stator, the radial tightening effect can be achieved from the radial direction of the stator, the radial deformation of the stator is limited, resonance is avoided in the working process of the motor due to the deformation of the stator in different orders, and the electromagnetic noise caused by electromagnetic radial force waves is effectively suppressed.
In addition, the locking device is simple in overall structure and convenient to process and manufacture, and can be made of metal materials, so that the locking device has the advantages of high rigidity and high hardness.
In any of the above technical solutions, the clamping structure extends along the axial direction of the stator; the connecting structure extends along the circumferential direction of the stator.
In the technical scheme, the clamping structure extends along the axial direction of the stator, so that two ends of the clamping structure are respectively clamped with the axial end face of the stator, the clamping structure is ensured to have at least two connecting positions, and the connecting strength of the locking device is further improved; the connection structure extends along the circumference of the stator, the contact area between the connection structure and the radial outer wall of the stator is improved, the hooping effect on the stator is further improved, and the connection structure is guaranteed to provide enough hooping force for the stator.
In any of the above technical solutions, the number of the clamping structures is at least two, and the at least two clamping structures are distributed along the circumferential direction of the stator at intervals.
In this technical scheme, the quantity of joint structure is at least two, and at least two joint structures along the circumference interval distribution of stator. That is, locking device includes two at least joint structures and at least one connection structure, and at least one connection structure is connected with two at least joint structures simultaneously, and two at least joint structures are interval distribution.
In the use, two at least joint structures simultaneously with the axial terminal surface looks butt of stator to make connection structure have two at least hookup location along the circumference of stator, guarantee connection structure's atress effect, guarantee the holistic fastness of locking device simultaneously, guarantee that connection structure has sufficient hookup location, guarantee the stability of being connected between connection structure and the joint structure, guarantee that the joint structure can bear sufficient radial force.
In any one of the above technical schemes, the end of the clamping structure is provided with a clamping portion, the axial end face of the stator is provided with a clamping groove, and the clamping portion is clamped in the clamping groove.
In this technical scheme, the both ends of joint structure are provided with joint portion, and the axial terminal surface of stator is provided with the joint groove, and the shape and size phase-match in shape and size in joint portion and joint groove. In the use, joint portion joint in the joint groove guarantees locking device's stable installation, guarantees that locking device can overcome sufficient radial force, promotes the effect of cramping to the stator.
In any of the above technical solutions, the thickness of the clamping structure is 1mm to 1.5 mm.
In the technical scheme, the thickness of the clamping structure is 1mm to 1.5 mm. The thickness of rationally setting up the joint structure guarantees on the one hand that the joint structure has sufficient intensity, guarantees locking device's connection stability, and on the other hand simplifies the overall structure of joint structure, is favorable to realizing the structure minimizing, reduces joint structure material simultaneously.
In any of the above solutions, the thickness of the connection structure is 1mm to 1.5 mm.
In this solution, the thickness of the connection structure is 1mm to 1.5 mm. The thickness that rationally sets up connection structure guarantees on the one hand that connection structure has sufficient intensity, guarantees to the stator cramp effect and cramp intensity, and on the other hand simplifies connection structure's overall structure, is favorable to realizing the structure minimizing, reduces connection structure materials simultaneously.
In any of the above technical solutions, the number of the locking devices is at least two, and the at least two locking devices are arranged along the circumferential direction of the stator.
In this technical scheme, the quantity of locking device is at least two, and at least two locking device set up along the circumference of stator, are the symmetric distribution to from the radial deformation of at least two relative directions restriction stators, effectively reduce the resonance response of stator and radial force ripples, effectively restrain the electromagnetic noise that arouses by electromagnetism radial force ripples.
In any of the above solutions, the stator includes: the stator punching sheet comprises a plurality of stator punching sheets which are distributed in a stacked mode along the axial direction of a stator, and the connecting structure is configured to be abutted to one or more of the plurality of stator punching sheets.
In this technical scheme, the stator includes the stator punching. The locking device is positioned on the radial outer part of the stator, and the clamping structure is simultaneously contacted with the plurality of stator punching sheets; the connecting structure extends along the circumferential direction of the stator and is connected with one or more stator punching sheets in a butting mode, the effect of hooping the stator punching sheets is achieved, the deformation of the stator punching sheets is limited in the radial direction, the resonance response of the stator and radial force waves is effectively reduced, and the electromagnetic noise caused by the electromagnetic radial force waves is effectively suppressed.
A second aspect of the present invention provides a compressor comprising: a cylinder block; and the motor is connected with the cylinder seat.
The compressor provided by the invention comprises a cylinder seat and the motor in any technical scheme. Therefore, the overall beneficial effects of the motor with any one of the above technical solutions are not discussed herein.
The motor is connected with the cylinder block, and at least part of a crankshaft of the motor extends into the cylinder block and rotates under the driving of a rotor of the motor so as to compress substances in the cylinder block.
Specifically, the cylinder block is connected with the axial end face of the motor, and the locking device is arranged around the radial end face of the motor.
In the above technical solution, the method further comprises: and the motor is configured to be connected with the cylinder block through the bolt.
In the technical scheme, the compressor further comprises a bolt, and the bolt is connected with the stator and the cylinder seat to ensure stable connection of the stator and the cylinder seat.
In any of the above technical solutions, the method further includes: and the stator leg is arranged on the cylinder block, and the cylinder block is configured to be connected with the bolt through the stator leg.
In this technical solution, the compressor further includes a stator leg. The stator pin is arranged on the cylinder seat and extends towards one side of the motor; one end of the bolt is screwed on the stator leg, so that the stable connection of the cylinder block and the motor is ensured.
A third aspect of the present invention provides a refrigeration apparatus comprising: in the compressor according to any one of the above aspects, the compressor is disposed on the main body.
The refrigeration equipment provided by the invention comprises the compressor in any technical scheme. Therefore, all the advantages of the compressor are achieved, and are not discussed in detail herein.
The refrigeration equipment further comprises a main body, the compressor is arranged on the main body, a storage chamber is arranged in the main body and can store food, and the compressor provides a refrigerant for the refrigeration equipment and ensures that the temperature in the storage chamber is proper.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic view of a compressor according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a locking device in a motor according to an embodiment of the present invention;
FIG. 3 is a front view of the locking device of the embodiment shown in FIG. 2;
FIG. 4 is a top view of the locking device of the embodiment shown in FIG. 2;
FIG. 5 is a schematic structural view of a snap structure in the locking device of the embodiment shown in FIG. 2;
fig. 6 is a top view of a stator in an electric machine according to an embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 6 is:
102 stator, 1022 first wall surface, 1024 second wall surface, 104 locking device, 106 clamping structure, 108 connecting structure, 110 clamping part, 112 cylinder seat, 114 bolt and 116 stator leg.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
A motor, a compressor, and a refrigerating apparatus provided according to some embodiments of the present invention will be described with reference to fig. 1 to 6.
The first embodiment is as follows:
as shown in fig. 1, a motor according to a first embodiment of the present invention includes: a stator 102 and a locking device 104.
The locking device 104 is disposed on the stator 102 and can limit radial deformation of the stator 102, so as to prevent resonance caused by different-order deformation of the stator 102 during operation of the motor, thereby effectively reducing resonance response between the stator 102 and radial force waves, and effectively suppressing electromagnetic noise caused by electromagnetic radial force waves, so as to achieve an effect of optimizing noise.
The motor provided by the embodiment can effectively suppress electromagnetic noise caused by electromagnetic radial force waves by limiting the radial deformation of the stator 102 through the locking device 104, so as to achieve the effect of optimizing the noise.
Example two:
as shown in fig. 1, a second embodiment of the present invention provides an electric machine, including: a stator 102 and a locking device 104; as shown in fig. 2, 3 and 4, the locking device 104 includes a snap structure 106 and a connecting structure 108.
Specifically, two ends of the clamping structure 106 are respectively clamped with the axial end faces of the stator 102, so that stable installation of the locking device 104 and the stator 102 is ensured, and the situation that the locking device 104 falls off is avoided; the connecting structure 108 is disposed on the clamping structure 106 and abuts against the radial outer wall of the stator 102, so as to achieve a tightening effect from the radial direction of the stator 102.
That is, the locking device 104 provided in this embodiment can effectively limit radial deformation of the stator 102 by using the clamping structure 106 and the connecting structure 108 in cooperation, so as to avoid resonance caused by different-order deformation of the stator 102 during the operation of the motor, and effectively suppress electromagnetic noise caused by electromagnetic radial force waves.
In addition, the locking device 104 has a simple overall structure, is convenient to process and manufacture, and can be made of metal materials, so that the locking device has the advantages of high rigidity and high hardness.
In this embodiment, as further shown in fig. 1, the clamping structure 106 is disposed along an axial direction of the stator 102, so as to ensure that two ends of the clamping structure 106 are respectively clamped with an axial end face of the stator 102, and ensure that the clamping structure 106 has at least two connection positions, thereby further improving the connection strength of the locking device 104.
In this embodiment, further, as shown in fig. 1, the connection structure 108 is disposed along the circumferential direction of the stator 102, so as to increase the contact area between the connection structure 108 and the radial outer wall of the stator 102, further increasing the clamping effect on the stator 102, and ensuring that the connection structure 108 can provide sufficient clamping force for the stator 102.
In this embodiment, as shown in fig. 2 and 3, the number of the clamping structures 106 is three, the number of the connecting structures 108 is one, the three clamping structures 106 are distributed at intervals along the circumferential direction of the stator 102, and one connecting structure 108 is connected with three clamping structures 106 at the same time.
In the use, three joint structure 106 is simultaneously with stator 102's axial terminal surface looks butt to make connection structure 108 have a plurality of hookup location along stator 102's circumference, guarantee connection structure 108's atress effect, guarantee the holistic fastness of locking device 104, guarantee simultaneously that connection structure 108 has sufficient hookup location, guarantee the stability of being connected between connection structure 108 and the joint structure 106, guarantee that joint structure 106 can bear sufficient radial force.
In this embodiment, three snap structures 106 are taken as an example for explanation, but it can be understood by those skilled in the art that the number of snap structures 106 can be set according to the size of the stator 102, and is not limited to three; likewise, a plurality of connection structures 108 may be provided.
In this embodiment, as shown in fig. 3 and 5, the two ends of the clamping structure 106 are provided with clamping portions 110, the axial end surface of the stator 102 is provided with clamping grooves (not shown), and the shape and size of the clamping portions 110 match the shape and size of the clamping grooves. In the use process of the motor, the clamping portion 110 is clamped in the clamping groove, so that stable installation of the locking device 104 is guaranteed, sufficient radial force can be overcome by the locking device 104, and the clamping effect on the stator 102 is improved.
In this embodiment, further, the thickness of the snap structure 106 is 1mm to 1.5 mm. The thickness of the clamping structure 106 is reasonably set, so that on one hand, the clamping structure 106 is guaranteed to have enough strength, the connection stability of the locking device 104 is guaranteed, on the other hand, the overall structure of the clamping structure 106 is simplified, the structure minimization is favorably realized, and meanwhile, the material consumption of the clamping structure 106 is reduced.
In this embodiment, further, the thickness of the connecting structure 108 is 1mm to 1.5 mm. The thickness that rationally sets up connection structure 108 guarantees on the one hand that connection structure 108 has sufficient intensity, guarantees to the stator 102 cramp effect and cramp intensity, and on the other hand simplifies connection structure 108's overall structure, is favorable to realizing the structure minimizing, reduces connection structure 108 materials simultaneously.
In this embodiment, the snap structure 106 and the connecting structure 108 are a one-piece structure, which ensures the strength of the locking device 104 and avoids the use of connecting parts.
In this embodiment, the snap structure 106 and the connecting structure 108 are connected using a welding or connecting member.
Example three:
as shown in fig. 1, a motor according to a third embodiment of the present invention includes: a stator 102 and a locking device 104; wherein the number of locking devices 104 is two.
Specifically, as shown in fig. 6, the radially outer wall of the stator 102 includes a first wall 1022 and a second wall 1024, the first wall 1022 is a curved surface, and the second wall 1024 is a flat surface. Therefore, the first wall 1022 has a greater radial force during operation of the motor.
For this purpose, two locking devices 104 are provided in the present embodiment, and the two locking devices 104 are disposed on the two first walls 1022 in a symmetrical manner.
That is, during the use of the motor, the two locking devices 104 limit the radial deformation of the stator 102 from two opposite directions, so as to effectively reduce the resonance response of the stator 102 and the radial force wave, and effectively suppress the electromagnetic noise caused by the electromagnetic radial force wave.
Further, as shown in fig. 4, the locking device 104 is curved as a whole. That is, the connecting structure 108 is curved to ensure that the locking device 104 is in abutment with the first stop.
Example four:
a fourth embodiment of the present invention provides a motor including: a stator 102 and a locking device 104.
As shown in fig. 1, the locking device 104 is disposed on the stator 102, and can limit radial deformation of the stator 102, so as to prevent resonance caused by deformation of the stator 102 of different orders during operation of the motor, thereby effectively reducing resonance response of the stator 102 and radial force waves, and effectively suppressing electromagnetic noise caused by electromagnetic radial force waves, so as to achieve an effect of optimizing noise.
Further, the stator 102 includes a stator lamination. The plurality of stator laminations are distributed in a stacked mode along the axial direction of the stator 102, the locking device 104 is located on the radial outer portion of the stator 102, and the clamping structure 106 is simultaneously in contact with the plurality of stator laminations; the connecting structure 108 extends along the circumferential direction of the stator 102, the connecting structure 108 is abutted to one or more stator punching sheets, the effect of hooping the stator punching sheets is achieved, the deformation of the stator punching sheets is limited in the radial direction, the resonance response of the stator 102 and radial force waves is effectively reduced, and the electromagnetic noise caused by electromagnetic radial force waves is effectively inhibited.
Example five:
as shown in fig. 1, a fifth embodiment of the present invention provides a compressor including: a cylinder block 112 and a motor as in any of the embodiments described above.
The compressor of the present invention includes a cylinder block 112 and a motor according to any of the above embodiments. Therefore, the overall benefits of the motor having any of the above embodiments will not be discussed herein.
Wherein, the motor is connected with the cylinder block 112, and the crankshaft of the motor at least partially extends into the cylinder block 112 and rotates under the driving of the rotor of the motor, so as to compress the substance inside the cylinder block 112.
In this embodiment, further, as shown in fig. 1, the compressor further includes a bolt 114, and the bolt 114 connects the stator 102 and the cylinder block 112 to ensure a stable connection therebetween.
In this embodiment, further, as shown in fig. 1, the compressor further includes a stator leg 116. The stator leg 116 is disposed on the cylinder block 112 and extends toward one side of the motor; one end of the bolt 114 is screwed to the stator leg 116 to ensure a stable connection between the cylinder block 112 and the motor.
Specifically, four stator legs 116 are provided and symmetrically distributed at the head and the tail of the cylinder block 112, so as to ensure uniform stress.
Example six:
a sixth embodiment of the present invention provides a refrigeration apparatus including: a body and a motor as in embodiment six (this embodiment is not shown in the figures).
The refrigeration equipment provided by the invention comprises a main body and the compressor as in the sixth embodiment. Therefore, all the advantages of the compressor are achieved, and are not discussed in detail herein.
The compressor is arranged on the main body, a storage chamber is arranged in the main body and can store food, and the compressor provides a refrigerant for the refrigeration equipment and ensures that the temperature in the storage chamber is proper.
The first embodiment is as follows:
the present embodiment proposes a motor applied to a compressor. As shown in fig. 1, the motor includes a stator 102 and a locking device 104. The locking device 104 is disposed on the stator 102 and can limit radial deformation of the stator 102, so as to prevent resonance caused by different-order deformation of the stator 102 during operation of the motor, thereby effectively reducing resonance response between the stator 102 and radial force waves, and effectively suppressing electromagnetic noise caused by the electromagnetic radial force waves, so as to achieve an effect of optimizing noise.
Further, as shown in fig. 2, 3 and 4, the locking device 104 includes a snap structure 106 and a connecting structure 108. Two ends of the clamping structure 106 are respectively clamped with the axial end faces of the stator 102, so that stable installation of the locking device 104 and the stator 102 is ensured; the connecting structure 108 is disposed on the clamping structure 106 and abuts against a radial outer wall of the stator 102, so as to achieve a tightening effect from a radial direction of the stator 102, and limit radial deformation of the stator 102.
Further, as shown in fig. 1, the clamping structure 106 extends along the axial direction of the stator 102, so as to ensure that two ends of the clamping structure 106 are respectively clamped with the axial end faces of the stator 102; the connecting structure 108 is disposed along the circumferential direction of the stator 102, so as to ensure that the connecting structure 108 can provide sufficient locking force for the stator 102, thereby improving the tightening effect on the stator 102.
Further, as shown in fig. 2, 3 and 4, the number of the clamping structures 106 is three, and the three clamping structures 106 are distributed at intervals along the circumferential direction of the stator 102, so as to ensure the overall firmness of the locking device 104 and ensure that the clamping structures 106 can bear enough radial force.
Further, as shown in fig. 2 and 5, two end portions of the clamping structure 106 are provided with clamping portions 110, an axial end surface of the stator 102 is provided with a clamping groove, and the clamping portions 110 are clamped in the clamping groove, so that the locking device 104 can overcome sufficient radial force, and the clamping effect on the stator 102 is improved.
Further, the thickness of the clamping structure 106 is 1mm to 1.5 mm.
Further, the thickness of the connecting structure 108 is 1mm to 1.5 mm.
Further, the number of the locking devices 104 is two, and the two locking devices 104 are disposed along the circumferential direction of the stator 102 and symmetrically distributed to limit radial deformation of the stator 102 from two opposite directions.
Further, the stator 102 includes stator laminations, and a plurality of stator laminations are along the axial range upon range of distribution of stator 102, and connection structure 108 is configured to be connected with one or several looks butts in a plurality of stator laminations, plays the effect of cramping the stator laminations, from the deformation of radial restriction stator laminations, plays the effect of cramping the stator laminations.
Further, the motor further comprises a rotor and a crankshaft, wherein the rotor at least partially extends into the stator 102 and can be driven by the stator 102 to rotate; the crankshaft is connected with the rotor and can be driven by the rotor to rotate so as to output torque.
Further, as shown in fig. 1, the compressor further includes a cylinder block 112, the cylinder block 112 is connected to a motor, and a crankshaft of the motor at least partially extends into the cylinder block 112 and is driven by a rotor of the motor to rotate so as to compress a substance located inside the cylinder block 112.
Further, as shown in fig. 1, the compressor further includes a bolt 114, and the bolt 114 connects the stator 102 and the cylinder block 112 to ensure a stable connection therebetween.
Further, as shown in fig. 1, the compressor further includes a stator leg 116, where the stator leg 116 is disposed on the cylinder block 112 and extends toward one side of the motor; one end of the bolt 114 is screwed to the stator leg 116 to ensure a stable connection between the cylinder block 112 and the motor.
Further, the compressor provided in the present embodiment may be applied to a refrigeration device such as a refrigerator, an ice chest, a display cabinet, and the like, and may also be applied to an air conditioning device such as a household air conditioner, a central air conditioner, and the like.
The second embodiment is as follows:
as shown in fig. 1, the present embodiment proposes a motor applied to a compressor. As shown in fig. 2, 3 and 4, the locking device 104 includes a connecting structure 108 and three independent clamping structures 106, and clamping connectors for connecting the stator 102 are provided at two ends of the three independent clamping structures 106; a cylinder block 112 is arranged above the stator 102 and is connected with the stator 102 through a bolt 114; the stator 102 is arranged below the cylinder block 112, clamping grooves for clamping are formed in two ends of the stator 102, and symmetrical clamping structures 106 are arranged on two first wall surfaces 1022 of the stator 102; four stator legs 116 extend downward from the lower surface of the cylinder block 112, and the stator legs 116 are symmetrically distributed at the cylinder head and the cylinder tail; the connecting structure 108 and the independent structure are made of steel materials; the overall thickness of the connecting structure 108 and the clamping structure 106 is 1mm to 1.5 mm; the number of the locking devices 104 is 2, the locking devices are respectively arranged at two convex surfaces of the stator 102 and are symmetrically distributed; the stator 102 is arranged below the cylinder block 112, and the locking device 104 is arranged at the convex edge of the stator 102; the upper axial end face and the lower axial end face of the stator 102 are provided with clamping grooves, and the three independent clamping structures 106 are buckled with the stator 102 through the clamping grooves on the stator 102.
According to the motor provided by the invention, the radial direction of the stator 102 is hooped and locked, so that the hooping effect on the radial direction of the stator punching sheet can be achieved. In the process of the compressor running at high rotating speed, the resonance response of the stator 102 and the radial force wave can be effectively reduced due to the action of the locking device 104, and the generation of electromagnetic noise caused by the electromagnetic radial force wave can be effectively inhibited, so that the effect of optimizing the noise is achieved.
In the prior art, when the compressor, especially the reciprocating compressor, is in operation, the stator 102 has different natural frequencies in different orders of deformation, and when the frequency of the radial force wave is close to or equal to a certain natural frequency of the stator 102, resonance is caused. In this case, even if the amplitude of the radial force is not large, the stator 102 is deformed and periodically vibrates, and large electromagnetic noise is generated.
According to the locking device 104 for the reciprocating compressor, the stator 102 is radially locked, so that the stator punching sheet can be radially clamped. In the process of the compressor running at high rotating speed, the resonance response of the stator 102 and the radial force wave can be effectively reduced due to the action of the locking device 104, and the generation of electromagnetic noise caused by the electromagnetic radial force wave can be effectively inhibited, so that the effect of optimizing the noise is achieved.
Specifically, the compressor proposed in the present embodiment is a reciprocating compressor.
Specifically, the compressor provided by the embodiment can be applied to refrigeration equipment such as a refrigerator, an ice chest, a display cabinet and the like, and can also be applied to air conditioning equipment such as a household air conditioner, a central air conditioner and the like.
In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. An electric machine, comprising:
a stator;
a locking device disposed on the stator, the locking device configured to limit radial deformation of the stator;
the rotor at least partially extends into the interior of the stator and can rotate under the driving of the stator;
the crankshaft is connected with the rotor and can be driven by the rotor to rotate;
the locking device includes:
the clamping structure is clamped with the axial end face of the stator;
the connecting structure is arranged on the clamping structure.
2. The electric machine of claim 1, wherein the connection structure abuts a radially outer wall of the stator.
3. The electric machine of claim 2,
the clamping structure extends along the axial direction of the stator;
the connecting structure extends along the circumferential direction of the stator.
4. The electric machine of claim 2,
the quantity of joint structure is at least two, and at least two the joint structure is followed the circumference interval distribution of stator.
5. The electric machine according to any of claims 2 to 4,
the end of the clamping structure is provided with a clamping portion, the axial end face of the stator is provided with a clamping groove, and the clamping portion is clamped in the clamping groove.
6. The electric machine according to any of claims 2 to 4,
the thickness of the clamping structure is 1mm to 1.5 mm; and/or
The thickness of the connecting structure is 1mm to 1.5 mm.
7. The electric machine according to any of claims 1 to 4,
the number of the locking devices is at least two, and the locking devices are arranged along the circumferential direction of the stator.
8. The electric machine of any of claims 2 to 4, wherein the stator comprises:
the stator punching sheets are distributed in a stacked mode along the axial direction of the stator, and the connecting structure is configured to be abutted against one or more of the stator punching sheets.
9. A compressor, comprising:
a cylinder block; and
the electric machine of any one of claims 1 to 8, connected with the cylinder block.
10. The compressor of claim 9, further comprising:
a bolt through which the motor is configured to be coupled with the cylinder block.
11. The compressor of claim 10, further comprising:
a stator leg disposed on the cylinder block, the cylinder block configured to be coupled with the bolt through the stator leg.
12. A refrigeration apparatus, comprising:
a compressor as claimed in any one of claims 9 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010033827.8A CN113113984B (en) | 2020-01-13 | 2020-01-13 | Motor, compressor and refrigeration plant |
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| CN202010033827.8A CN113113984B (en) | 2020-01-13 | 2020-01-13 | Motor, compressor and refrigeration plant |
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| US11624358B2 (en) * | 2020-09-01 | 2023-04-11 | Schlumberger Technology Corporation | Measuring backlash of a pump gear train |
| US11959823B2 (en) | 2020-09-23 | 2024-04-16 | Schlumberger Technology Corporation | Measuring backlash of a drive train |
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| JP3886703B2 (en) * | 2000-07-11 | 2007-02-28 | 三菱電機株式会社 | Stator for rotating electric machine and method for manufacturing the same |
| DE10057123A1 (en) * | 2000-11-16 | 2002-05-23 | Alcatel Sa | Stator for electric motor, has outer ring that locks onto end faces of T-shaped wrapped pole of inner ring |
| CN201336587Y (en) * | 2008-12-30 | 2009-10-28 | 卧龙电气集团股份有限公司 | Block-partitioned type stator iron core structure |
| EP2538524A4 (en) * | 2010-02-17 | 2018-03-28 | Toyota Jidosha Kabushiki Kaisha | Rotating electric machine |
| JP5459110B2 (en) * | 2010-06-30 | 2014-04-02 | 株式会社デンソー | Rotating electric machine stator |
| DE102016207432A1 (en) * | 2015-06-25 | 2016-12-29 | Magna powertrain gmbh & co kg | Electric machine |
| CN206640411U (en) * | 2017-04-26 | 2017-11-14 | 安徽美芝制冷设备有限公司 | Stator core and motor |
| CN108988516B (en) * | 2017-06-01 | 2021-04-20 | 西门子公司 | Motor and method for controlling motor to reduce noise |
| CN209462097U (en) * | 2019-02-19 | 2019-10-01 | 盈莱汽车电子系统(苏州)有限公司 | A kind of spliced stator core |
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