Motor frame, stator assembly, motor and compressor

Abstract

The application provides a motor framework, a stator assembly, a motor and a compressor. The motor framework is used for supporting a stator and a rotor, and comprises: a plurality of motor sub-frameworks which can be connected together, each motor sub-framework comprising: a support for carrying a winding; a first stopper connected to the support; and a plurality of positioning grooves arranged on the first stopper and extending in the circumferential direction of the stator, the plurality of positioning grooves being used for accommodating the winding. By arranging the plurality of circumferentially distributed positioning grooves on the motor sub-framework, the plurality of windings can be separated by the plurality of positioning grooves, so as to avoid the plurality of windings from being crossed or wound together, and avoid the winding from being subjected to excessive stretching force due to winding, thereby solving the technical problem that the wire is prone to breaking in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular to a motor frame, a stator assembly, a motor and a compressor. Background Art

[0002] In the related art, multi-phase windings are wound together on the winding positioning disk of a multi-phase motor, and the windings of each phase are easily cross-entangled, which affects the reliability and stability of the multi-phase motor and increases the failure rate. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0004] To this end, a first aspect of the present invention provides a motor skeleton.

[0005] A second aspect of the present invention provides a stator assembly.

[0006] A third aspect of the present invention provides a motor.

[0007] A fourth aspect of the present invention provides a compressor.

[0008] In view of this, the first aspect of the present invention provides a motor frame, which is used to support the stator and the rotor. The motor frame includes: a plurality of motor sub-frames that can be spliced ​​and connected, and the motor sub-frames include: a support member for carrying the winding; a first stop member connected to the support member; a plurality of positioning grooves, which are arranged on the first stop member and extend along the circumference of the stator, and the plurality of positioning grooves are used to accommodate the winding.

[0009] The present application defines a motor skeleton, which is the main frame structure inside the motor and can be used to position and support the stator and rotor, ensuring that the stator and rotor can be accurately positioned at the predetermined installation position of the motor. Specifically, the motor skeleton is annular as a whole, and the motor skeleton is spliced ​​together by multiple motor sub-skeletons, each motor sub-skeleton is distributed in the radial direction of the motor skeleton, and multiple motor skeletons are evenly distributed. The motor sub-skeleton includes a support member and a first stopper, the support member is a winding support structure, the winding is wound on the support member, and the length direction of the support member is consistent with the radial direction of the motor skeleton. The first stopper is connected to the support member, specifically the first stopper is connected to one end of the support member facing the outer peripheral side of the motor skeleton, and in the axial direction of the motor skeleton, the first stopper protrudes from the support member, the first stopper can act as a stopper on the outer ring side of the motor skeleton, and the winding wound on the support member can abut against the first stopper to prevent the winding from escaping from the outer end of the support member, thereby acting as a limiter to ensure that the winding can be wound in the predetermined space.

[0010] In the related art, multi-phase motors have been widely used. In a multi-phase motor, multiple windings need to be provided, and all of the windings need to be wound on the stator disk. In the process of winding multiple windings, different windings will inevitably be cross-wound, so that multiple windings are cross-wound together. The radial force exerted on the windings that are wound together is large, and the problem of winding breakage is prone to occur. In addition, the windings that are wound together are tightly fitted together. Under the influence of the working vibration of the motor, the tightly fitted windings will produce severe friction. The friction will accelerate the aging of the windings and affect the life of the windings. In addition, when maintaining and replacing the windings, the cross-wound windings will increase the difficulty of operation for maintenance personnel. In most cases, multiple windings cannot be disassembled and need to be replaced in full, resulting in increased maintenance costs for the stator.

[0011] To this end, the present application provides a plurality of positioning slots on the first stopper. The positioning slots are provided on the side of the first stopper facing away from the support member, that is, on the outer periphery of the motor sub-frame. Furthermore, the positioning slots extend along the axial direction of the stator on the outer periphery of the first stopper, specifically on a pitch circle with the stator axis as the axis. The plurality of positioning slots are arranged in parallel on the first stopper, and the number of positioning slots is equal to the number of phases of the multi-phase motor. For example, a three-phase motor requires three positioning slots to be arranged in parallel. During the assembly process, after a winding is completed on the support member of a motor sub-frame, the winding is guided to the positioning slot on the adjacent motor sub-frame. The winding is then guided from the positioning slot to the adjacent motor sub-frame and wound, and so on, to complete the assembly of the winding. The position of the positioning slot occupied by each winding on the motor sub-frame does not change. For example, when the three positioning slots are arranged sequentially from top to bottom, the first conductor is arranged in the positioning slot at the top of each motor sub-frame, so that the positioning slots clearly distinguish the multiple windings.

[0012] It can be seen that the present application provides a plurality of circumferentially distributed positioning grooves on the motor sub-skeleton so that a plurality of windings can be separated by a plurality of positioning grooves, so as to avoid the plurality of windings from crossing or being entangled together, and to avoid the windings from being subjected to excessive tensile force due to winding, thereby solving the technical problem of easy breakage of the wires in the related art. Moreover, when the motor vibrates during operation, no friction will occur between the plurality of windings respectively distributed in different positioning grooves, thereby solving the technical problem of rapid aging of the windings and high failure rate. In addition, when a certain winding fails, the maintenance personnel can clearly and accurately complete the disassembly of the plurality of windings according to the order of the positioning grooves, and after replacing the failed winding, wind the plurality of windings on the motor skeleton, thereby solving the technical problem of directly exhausting all the windings when a certain winding fails. This further achieves the technical effect of optimizing the motor skeleton structure, optimizing the layout of the windings on the motor skeleton, improving the working stability and reliability of the motor, reducing the aging rate and failure rate of the windings, and reducing the difficulty of assembly and maintenance costs.

[0013] Specifically, the motor frame also includes a base, which is annular, with motor sub-frames mounted on both upper and lower end surfaces of the annular base, and the stator core is defined between the two oppositely disposed motor sub-frames.

[0014] In addition, the motor frame provided by the present invention may also have the following additional technical features:

[0015] In the above technical solution, the motor sub-skeleton also includes: a mounting member, which is arranged on the surface of the first stop member facing away from the support member, and a plurality of positioning grooves are arranged on the mounting member along the circumference of the stator; a first avoidance groove, which is arranged through the first stop member and the mounting member; wherein, along the axial direction of the stator, the first avoidance groove extends from the free end of the first stop member to the connection between the first stop member and the support member, and the first avoidance groove is used to accommodate the winding.

[0016] This technical solution provides a detailed description of the structure of the motor sub-frame. Specifically, the motor sub-frame is further provided with a mounting member, which is disposed on the first stopper and located on the surface of the first stopper facing away from the support member, i.e., the outer annular surface of the motor frame. A positioning groove is formed on the mounting member and extends along the circumference of the motor frame. After the multiple motor sub-frames are assembled, the positioning grooves on the multiple motor sub-frames are distributed along the same pitch circle centered on the axis of the motor frame. Compared to a technical solution in which the positioning groove is directly formed on the first stopper, providing the mounting member with the positioning groove on the first stopper does not disrupt the structural structure of the first stopper, thereby alleviating stress concentration on the first stopper. This helps to improve the structural strength of the first stopper and prevents it from bending or even breaking under the pressure of the windings. Furthermore, by arranging the mounting member on the circumference of the motor frame, the windings that transition between the motor sub-frames can be arranged on the outer circumference of the support member, thereby preventing entanglement between the routing and windings.

[0017] On this basis, a first avoidance groove is also provided on the motor sub-skeleton. The first avoidance groove passes through the mounting member and the first stop member in the radial direction of the motor skeleton to connect the inner and outer sides of the first stop member. Specifically, on the first stop member, the first avoidance groove extends from the free end of the first stop member to the connection area between the first stop member and the support member. The free end of the first stop member is the end away from the support member, and the connection area is the root of the first stop member. During the assembly and winding process, the wires drawn from the adjacent motor sub-skeleton are installed in the positioning groove, and then pass through the mounting member and the first stop member through the first avoidance groove to facilitate winding the winding on the support member inside the motor skeleton. By providing the first avoidance groove, the routing method of the winding on the motor sub-skeleton is optimized and the winding complexity on the motor sub-skeleton is reduced. At the same time, the first avoidance groove can also play a limiting role. Compared with the technical solution of winding the winding from the edge of the first stop member to the inner side of the motor skeleton, the first avoidance groove can prevent the winding from sliding on the first stop member. This will optimize the motor frame structure, improve the winding positioning stability and reliability, and reduce the difficulty of winding assembly.

[0018] Among them, the mounting part can be detachably connected to the first stopper. By providing a detachably connected mounting part, on the one hand, when a mounting part fails, the faulty mounting part can be removed and replaced with a new one, thereby reducing the maintenance cost of the motor frame. On the other hand, providing a detachable mounting part can improve the versatility of the motor sub-skeleton. During the production process, the products to which the motor sub-skeleton is applicable can be adjusted by installing mounting parts with different numbers of positioning slots. For example, installing a mounting part including three positioning slots can make the motor sub-skeleton applicable to a three-phase motor. This provides convenient conditions for the modular design of the motor skeleton and optimizes the production process.

[0019] In any of the above technical solutions, at least a portion of the mounting member protrudes from the first stop member, and the motor frame also includes: a second avoidance groove, which is provided on the portion of the mounting member protruding from the first stop member, and the second avoidance groove extends along the axial direction of the stator and passes through multiple positioning grooves, and the second avoidance groove is used to accommodate a fixing member for fixing the winding.

[0020] In this technical solution, a portion of the mounting member protrudes from the first stopper along the circumferential direction of the stator. The side of the first stopper facing the support member is the inner side, the opposite side is the outer side, and the two circumferential end faces are the left and right side faces. A portion of the mounting member is disposed on the side of the first stopper, extending circumferentially along the motor frame. Furthermore, a second escape groove is provided on the portion of the mounting member protruding from the first stopper. Specifically, the second escape groove extends along the axis of the motor frame on the mounting member, intersecting with and passing through multiple positioning grooves. During the winding assembly process, after the winding is completed on the motor sub-frame, the winding is guided from one side of the support member to the other side of the mounting member via the first escape groove. The winding is then installed in the positioning groove protruding from the first stopper and ultimately guided to the adjacent motor sub-frame. The second escape groove is used to mount a winding fixture, which can be a wire clamp or a positioning wire. The wire clamp and positioning member press the winding against the first stopper to prevent it from loosening. Thus, the provision of a protruding mounting member provides installation space for the winding clamping structure, preventing structural interference between the clamping structure and the first stopper. The provision of a clamping structure improves the stability and reliability of the winding's positioning on the motor frame. This achieves the technical benefits of optimizing the motor frame structure, reducing the difficulty of winding assembly, and improving winding positioning reliability.

[0021] In any of the above technical solutions, the motor sub-frame further includes: a third avoidance groove, which is provided on the first stopper and located in the second avoidance groove, and the third avoidance groove passes through the first stopper along the radial direction of the stator.

[0022] In this technical solution, following the above-mentioned technical solution, a third avoidance groove is further provided on the mounting part protruding from the first stopper. Specifically, the third avoidance groove passes through the mounting part along the radial direction of the motor frame, and the third avoidance groove intersects with the first avoidance groove and the second avoidance groove. Among them, the third avoidance groove can be provided on the upper and lower end faces of the part of the mounting part protruding from the first stopper. During the assembly and winding process, the winding led out from the first avoidance groove is inserted into the third avoidance groove via the positioning groove and the second avoidance groove, and then wound onto the adjacent motor sub-frame. The third avoidance groove can play a limiting role. By providing the third avoidance groove, the winding can be prevented from sliding on the mounting part, thereby improving the positioning reliability and stability of the winding on the motor sub-frame, and reducing the difficulty of winding assembly. Thereby achieving the technical effect of improving structural stability and providing convenient conditions for winding assembly.

[0023] Among them, the third avoidance groove can be selected as a V-shaped groove or a U-shaped groove. Setting the third avoidance groove as a V-shaped groove or a U-shaped groove can serve as a guide for winding, so that the winding can be tightly tied to the root of the third avoidance groove along the groove wall of the third avoidance groove, thereby improving the winding positioning stability and reliability.

[0024] In any of the above technical solutions, at least one of the two groove walls of the second avoidance groove is constructed as an inclined groove wall.

[0025] In this technical solution, the second avoidance groove is described in detail. Specifically, on the mounting part, the surface defining the second avoidance groove is the side wall of the second avoidance groove. The second avoidance groove passes through the mounting part in the axial direction of the motor frame, that is, the second avoidance groove has two left and right groove walls. On this basis, at least one of the two groove walls of the avoidance groove is inclined with respect to the radial direction of the motor frame to form a guiding slope that can guide the winding into the second avoidance groove. During the assembly process, the winding can be tightened in the second avoidance groove by the inclined groove wall. On the one hand, the probability of misinstallation of the winding can be reduced, and on the other hand, the winding can be prevented from being scratched by the mounting part during the installation process. Thereby, the technical effect of optimizing the structure of the mounting part and reducing the difficulty of winding assembly is achieved.

[0026] In any of the above technical solutions, the motor sub-frame further includes: a second stopper connected to the support member and arranged at an end of the support member away from the first stopper.

[0027] In this technical solution, a second stopper is further provided on the motor sub-skeleton, and the second stopper is connected to the support member. Specifically, the support member extends in the radial direction of the motor skeleton, and the end away from the axis of the motor skeleton is connected to the first stopper to form the outer annular surface of the motor skeleton through the first stopper. The second stopper is connected to the end close to the axis of the motor skeleton to form the inner annular surface of the motor skeleton through the second stopper. By providing the second stopper, a stopper structure opposite to the first stopper can be formed on the inner side of the connecting member, and the winding wound on the support member can abut against the second stopper to prevent the winding from escaping from the inner end of the support member, thereby cooperating with the first stopper to accurately position the winding wound on the support member. This thereby achieves the technical effect of optimizing the motor sub-skeleton structure, improving the winding positioning stability and reliability, and reducing the motor failure rate.

[0028] In any of the above technical solutions, the motor sub-frame further includes: a mounting groove, which is provided on the second stopper, and the mounting groove is used to accommodate insulating paper.

[0029] In this technical solution, an installation groove is provided on the second stopper, and the installation groove is used to plug in the insulating paper in the motor. By providing the installation groove on the second stopper, convenient conditions can be provided for positioning and installing the insulating paper. Specifically, insulating paper is a composite insulating material often used when the motor winding adopts the enameled wire solution. The material is made of insulating materials of different materials bonded by special glue to produce different insulation grades and heat resistance grades to meet the needs of motor windings with different performance requirements. The insulating paper is mainly used as insulation between the winding and the core slot, and can also be used for interphase insulation of the windings of multi-phase motors. This improves the safety and reliability of the motor and reduces the failure rate of the motor.

[0030] In any of the above technical solutions, the number of the plurality of positioning grooves is greater than or equal to 3.

[0031] In this technical solution, a limit is placed on the number of positioning slots. Specifically, there are no fewer than three positioning slots, meaning the number of phases of the motor suitable for this motor skeleton is greater than or equal to three. The number of positioning slots is the same as the number of windings, with only one winding set in each positioning slot. The position of the positioning slot on the motor sub-skeleton remains unchanged to prevent the windings from crossing between multiple motor sub-skeletons. This achieves the technical effect of optimizing the winding layout, improving the reliability of winding positioning, and reducing the winding failure rate and the difficulty of assembly and disassembly.

[0032] In any of the above technical solutions, the motor sub-frame further includes: at least two isolating members, arranged at the end of the portion of the mounting member protruding from the first stop member; and an isolating groove, arranged on a side of the first stop member facing away from the mounting member.

[0033] In this technical solution, the motor sub-skeleton is also provided with an isolating member and an isolating groove. Specifically, the isolating member is provided on a mounting member protruding from the first stopper, specifically on an end of this mounting member away from the first stopper. Correspondingly, an isolating groove is formed on the side of the first stopper away from the above-mentioned protruding mounting member, so as to form relative isolating members and isolating grooves on the left and right sides of the first stopper. Furthermore, the first stopper extends along a pitch circle with the axis of the motor skeleton as the axis, and on this pitch circle, the isolating grooves and isolating members are alternately arranged. After the assembly of multiple motor sub-skeletons is completed, the isolating members and isolating grooves on two adjacent motor sub-skeletons divide a wiring groove for winding to pass through in the gap between the two motor sub-skeletons. The wiring groove can effectively separate the windings between two adjacent motor sub-skeletons, and prevent multiple windings from crossing and entangled in the area between adjacent motor sub-skeletons. After assembling multiple motor sub-frames, the distance between the spacers and the isolation slots on two adjacent motor sub-frames is smaller than the diameter of the winding wire, ensuring that the winding wire does not move within the multiple routing slots defined by the spacers and the isolation slots. This results in an optimized winding positioning structure, improved winding positioning accuracy and reliability, and reduced winding failure rates.

[0034] Specifically, when the motor frame is suitable for a three-phase motor, two isolation members are set on each motor sub-frame. After the assembly of the motor sub-frame is completed, the two isolation members form a wiring groove in a straight line, and two other wiring grooves are formed between the two isolation members and the groove wall of the isolation groove, so that the three windings can be wound around the adjacent motor sub-frame through the above three wiring grooves.

[0035] In any of the above technical solutions, the isolation piece of one motor sub-frame can be inserted into the isolation slot of another adjacent motor sub-frame.

[0036] In this technical solution, the isolators on the motor sub-frame can be inserted into the positioning slots on the adjacent motor sub-frames. By providing mutually pluggable isolators and isolation slots, the positioning of multiple motor sub-frames can be assisted, thereby facilitating the assembly of the motor sub-frames. At the same time, the pluggable isolators and isolation slots can also limit the amplitude of the motor sub-frame in the axial direction of the stator when the motor vibrates during operation, preventing the disintegration of multiple motor sub-frames during vibration. This achieves the technical effect of optimizing the motor sub-frame structure, improving the stability and compactness of the motor frame structure, and reducing the motor failure rate.

[0037] In any of the above technical solutions, the motor sub-frame further includes: a connecting member, which is arranged on a surface of the supporting member away from the first stop member and is used for connecting to the stator.

[0038] In this technical solution, a connector is also provided on the motor sub-frame. Specifically, the connector is provided on the support member and is connected to the surface of the support member facing away from the first stop member. By providing the connector on the motor sub-frame, a reasonable tolerance setting between the connector and the stator can be used to ensure that the motor sub-frame does not separate from the stator after installation. Specifically, the connector is a waist-shaped column, and the stator is provided with a corresponding waist-shaped hole. By providing this corresponding connection structure, the motor sub-frame can be prevented from rotating on the stator, thereby improving the positioning stability and reliability of the motor sub-frame.

[0039] A second aspect of the present invention provides a stator assembly, which includes: a motor frame as in any of the above technical solutions.

[0040] This technical solution defines a stator assembly provided with a motor frame according to any of the above-mentioned technical solutions. Therefore, this stator assembly possesses the advantages of the motor frames according to any of the above-mentioned technical solutions and can achieve the technical effects achieved by the motor frames according to any of the above-mentioned technical solutions. To avoid repetition, this description will not be repeated here.

[0041] In any of the above technical solutions, the stator assembly further includes: a stator core connected to the motor frame.

[0042] In this technical solution, a stator core is also provided in the stator assembly, and the stator core is plugged into the motor frame. Specifically, the motor sub-frames are arranged opposite to each other and spaced apart in the axial direction of the motor frame, and the stator core is located between the two motor sub-frames.

[0043] A third aspect of the present invention provides a motor, which includes the stator assembly in any of the above technical solutions.

[0044] This technical solution defines a motor equipped with the stator assembly described in any of the above-mentioned technical solutions. Therefore, this motor possesses the advantages of the stator assembly described in any of the above-mentioned technical solutions and can achieve the technical effects achieved by the stator assembly described in any of the above-mentioned technical solutions. To avoid repetition, this description will not be repeated here.

[0045] A fourth aspect of the present invention provides a compressor, which includes: the motor in the above technical solution.

[0046] This technical solution defines a compressor equipped with the motor described in any of the above technical solutions. Therefore, this compressor possesses the advantages of the motor described in the above technical solutions and can achieve the technical effects achieved by the motor described in the above technical solutions. To avoid repetition, this description will not be repeated here.

[0047] Additional aspects and advantages of the invention will become apparent from the description which follows, or may be learned by practice of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0049] Figure 1 It shows one of the structural schematic diagrams of the motor sub-skeleton according to one embodiment of the present invention;

[0050] Figure 2 A second schematic structural diagram of a motor sub-frame according to an embodiment of the present invention is shown;

[0051] Figure 3 It shows one of the structural schematic diagrams of a motor skeleton according to one embodiment of the present invention;

[0052] Figure 4 A second structural schematic diagram of a motor skeleton according to an embodiment of the present invention is shown.

[0053] in, Figures 1 to 4 The corresponding relationship between the reference numerals and component names is as follows:

[0054] 100 motor frame, 200 motor sub-frame, 210 support member, 220 first stop member, 222 positioning groove, 224 isolation groove, 230 mounting member, 232 first avoidance groove, 234 second avoidance groove, 236 third avoidance groove, 238 isolation member, 240 second stop member, 242 mounting groove, 250 connecting member, 300 winding. DETAILED DESCRIPTION

[0055] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0056] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0057] Refer to the following Figures 1 to 4 A motor skeleton, a stator assembly, a motor, and a compressor according to some embodiments of the present invention are described.

[0058] Example 1

[0059] like Figure 1 、 Figure 2 and Figure 3 As shown, an embodiment of the first aspect of the present invention provides a motor frame 100, which is used to support the stator and the rotor. The motor frame 100 includes: a plurality of motor sub-frames 200 that can be spliced ​​and connected, and the motor sub-frames 200 include: a support member 210 for carrying the winding 300; a first stop member 220, which is connected to the support member 210; a plurality of positioning grooves 222, which are arranged on the first stop member 220 and extend along the circumference of the stator, and the plurality of positioning grooves 222 are used to accommodate the winding 300.

[0060] The present application defines a motor skeleton 100, which is the main frame structure inside the motor and can be used to position and support the stator and rotor, ensuring that the stator and rotor can be accurately positioned at the predetermined installation position of the motor. Specifically, the motor skeleton 100 is annular as a whole, and the motor skeleton 100 is spliced ​​together by multiple motor sub-skeletons 200, each motor sub-skeleton 200 is distributed in the radial direction of the motor skeleton 100, and multiple motor skeletons 100 are evenly distributed. The motor sub-skeleton 200 includes a support member 210 and a first stop member 220, the support member 210 is a winding 300 support structure, the winding 300 is wound on the support member 210, and the length direction of the support member 210 is consistent with the radial direction of the motor skeleton 100. The first stopper 220 is connected to the support member 210. Specifically, the first stopper 220 is connected to one end of the support member 210 facing the outer periphery of the motor frame 100, and in the axial direction of the motor frame 100, the first stopper 220 protrudes from the support member 210. The first stopper 220 can act as a stopper on the outer ring side of the motor frame 100. The winding 300 wound on the support member 210 can abut against the first stopper 220 to prevent the winding 300 from escaping from the outer end of the support member 210, thereby playing a limiting role and ensuring that the winding 300 can be wound in the predetermined space.

[0061] In the related art, multi-phase motors have been widely used. In a multi-phase motor, multiple windings 300 need to be provided, and the multiple windings 300 all need to be wound on the stator disk. In the process of winding the multiple windings 300, different windings 300 will inevitably be cross-wound, so that the multiple windings 300 are cross-wound together. The radial force exerted on the windings 300 that are wound together is large, and the problem of the windings 300 breaking easily occurs. In addition, the windings 300 that are wound together are tightly fitted together. Under the influence of the working vibration of the motor, the tightly fitted windings 300 will produce severe friction. The friction will accelerate the aging of the windings 300 and affect the life of the windings 300. In addition, when maintaining and replacing the windings 300, the cross-wound windings 300 will increase the difficulty of operation for the maintenance personnel. In most cases, the multiple windings 300 cannot be disassembled and need to be replaced in full, resulting in an increase in the maintenance cost of the stator.

[0062] To this end, the present application provides a plurality of positioning slots 222 on the first stopper 220. The positioning slots 222 are disposed on a side of the first stopper 220 facing away from the support member 210, that is, on the outer periphery of the motor sub-frame 200. Furthermore, the positioning slots 222 extend axially along the outer periphery of the first stopper 220, specifically on a pitch circle centered on the stator axis. The plurality of positioning slots 222 are arranged in parallel on the first stopper 220, and the number of positioning slots 222 equals the number of phases of the multi-phase motor. For example, a three-phase motor requires three positioning slots 222. During assembly, after a winding 300 is wound on the support member 210 of a motor sub-frame 200, the winding 300 is guided into the positioning slot 222 on the adjacent motor sub-frame 200. The winding 300 is then guided through the positioning slot 222 onto the motor sub-frame 200 and wound. The winding 300 is then assembled in this manner, and so on. Among them, the position of the positioning slot 222 occupied by each winding 300 on the motor sub-skeleton 200 does not change. For example, when the three positioning slots 222 are distributed in sequence from top to bottom, the first wire is set in the positioning slot 222 at the top of each motor sub-skeleton 200 to clearly distinguish multiple windings 300 through the positioning slot 222.

[0063] Thus, the present application provides a plurality of circumferentially distributed positioning grooves 222 on the motor sub-frame 200, so that a plurality of windings 300 can be separated by a plurality of positioning grooves 222, so as to avoid a plurality of windings 300 from crossing or being entangled together, and to avoid the windings 300 from being subjected to excessive tensile force due to winding, thereby solving the technical problem of the easy breakage of the wires in the related art. And when the motor is working and vibrating, no friction will occur between the plurality of windings 300 respectively distributed in different positioning grooves 222, thereby solving the technical problem of the high aging speed and high failure rate of the windings 300. In addition, when a certain winding 300 fails, the maintenance personnel can clearly and accurately complete the disassembly of the plurality of windings 300 according to the order of the positioning grooves 222, and after replacing the failed winding 300, the plurality of windings 300 are wound around the motor frame 100, solving the technical problem of directly exhausting all the windings 300 when a certain winding 300 fails. This can optimize the structure of the motor frame 100, optimize the layout of the winding 300 on the motor frame 100, improve the working stability and reliability of the motor, reduce the aging rate and failure rate of the winding 300, and reduce the difficulty of assembly and maintenance costs.

[0064] Specifically, the motor frame 100 further includes a ring-shaped base, the upper and lower end surfaces of which are both mounted with motor sub-frames 200, and the stator core is defined between the two oppositely disposed motor sub-frames 200. The winding 300 is an enameled wire.

[0065] like Figure 1 and Figure 2As shown, in any of the above embodiments, the motor sub-skeleton 200 also includes: a mounting member 230, which is arranged on the surface of the first stop member 220 away from the support member 210, and a plurality of positioning grooves 222 are arranged on the mounting member 230 along the circumference of the stator; a first avoidance groove 232, which is arranged through the first stop member 220 and the mounting member 230; wherein, along the axial direction of the stator, the first avoidance groove 232 extends from the free end of the first stop member 220 to the connection between the first stop member 220 and the support member 210, and the first avoidance groove 232 is used to accommodate the winding 300.

[0066] In this embodiment, the structure of the motor sub-frame 200 is described in detail. Specifically, the motor sub-frame 200 is further provided with a mounting member 230. The mounting member 230 is disposed on the first stop member 220 and is located on the surface of the first stop member 220 facing away from the support member 210, that is, on the outer annular surface of the motor frame 100. A positioning groove 222 is formed on the mounting member 230 and extends along the circumference of the motor frame 100. After the plurality of motor sub-frames 200 are assembled, the positioning grooves 222 on the plurality of motor sub-frames 200 are distributed on the same pitch circle with the axis of the motor frame 100 as the axis. Compared to the embodiment in which the positioning groove 222 is directly provided on the first stop member 220, providing the mounting member 230 including the positioning groove 222 on the first stop member 220 does not destroy the shape and structure of the first stop member 220, thereby alleviating stress concentration on the first stop member 220. This helps to improve the structural strength of the first stopper 220, preventing the first stopper 220 from bending or even breaking under the pressure of the winding 300. At the same time, by arranging the mounting member 230 on the peripheral side of the motor frame 100, the winding 300 transitioning between the motor sub-frames 200 can be arranged on the outer peripheral side of the support member 210, thereby preventing the routing wires and the winding 300 from becoming entangled.

[0067] On this basis, the motor sub-frame 200 is also provided with a first avoidance groove 232. The first avoidance groove 232 extends radially through the mounting member 230 and the first stop member 220 of the motor frame 100, thereby connecting the inner and outer sides of the first stop member 220. Specifically, on the first stop member 220, the first avoidance groove 232 extends from the free end of the first stop member 220 to the connection area between the first stop member 220 and the support member 210. The free end of the first stop member 220 is the end away from the support member 210, and the connection area is the root of the first stop member 220. During the assembly of the winding 300, the wire drawn from the adjacent motor sub-frame 200 is inserted into the positioning groove 222. It then passes through the first avoidance groove 232 through the mounting member 230 and the first stop member 220, facilitating the winding 300 to be wound around the support member 210 inside the motor frame 100. The provision of the first avoidance groove 232 optimizes the routing of the winding 300 on the motor sub-frame 200, reducing the complexity of the winding 300 on the motor sub-frame 200. Furthermore, the first avoidance groove 232 also serves as a position limiter. Compared to embodiments in which the winding 300 is wound from the edge of the first stopper 220 into the interior of the motor frame 100, the first avoidance groove 232 prevents the winding 300 from sliding on the first stopper 220. This optimizes the structure of the motor frame 100, improves the positioning stability and reliability of the winding 300, and reduces the difficulty of assembling the winding 300.

[0068] Among them, the mounting member 230 can be detachably connected to the first stop member 220. By providing a detachably connected mounting member 230, on the one hand, when a failure occurs in the mounting member 230, the faulty mounting member 230 can be removed and replaced with a new mounting member 230, thereby reducing the maintenance cost of the motor skeleton 100. On the other hand, providing a detachable mounting member 230 can improve the versatility of the motor sub-skeleton 200. During the production process, the products to which the motor sub-skeleton 200 is applicable can be adjusted by installing mounting members 230 with different numbers of positioning slots 222. For example, installing a mounting member 230 including three positioning slots 222 can make the motor sub-skeleton 200 applicable to a three-phase motor. This provides convenient conditions for the modular design of the motor skeleton 100 and optimizes the production process.

[0069] like Figure 1 and Figure 2 As shown, in any of the above embodiments, at least a portion of the mounting member 230 protrudes from the first stop member 220, and the motor frame 100 also includes: a second avoidance groove 234, which is provided on the portion of the mounting member 230 protruding from the first stop member 220, and the second avoidance groove 234 extends along the axial direction of the stator and passes through multiple positioning grooves 222, and the second avoidance groove 234 is used to accommodate a fixing member for fixing the winding 300.

[0070] In this embodiment, the partial mounting member 230 protrudes from the first stop member 220 in the circumferential direction of the stator. The first stop member 220 has an inner side surface on the side facing the support member 210, an outer side surface on the opposite side, and left and right side surfaces in the circumferential direction. The partial mounting member 230 is arranged on the side surface of the first stop member 220 and extends in the circumferential direction of the motor frame 100. On the partial mounting member 230 protruding from the first stop member 220, a second avoiding groove 234 is further arranged. The second avoiding groove 234 extends in the axial direction of the motor frame 100 on the mounting member 230 and intersects and passes through the plurality of positioning grooves 222. During the assembly of the winding 300, after the winding 300 is wound on the motor sub-frame 200, the winding 300 is guided from the side of the support member 210 to the side of the mounting member 230 through the first avoiding groove 232, and then the winding 300 is mounted in the partial positioning groove 222 protruding from the first stop member 220, and finally guided to the adjacent motor sub-frame 200. The second avoiding groove 234 is used to mount a fixing member of the winding 300, which can be a wire clamp or a positioning wire. The wire clamp and the positioning member are used to tightly press the winding 300 on the first stop member 220 to prevent the winding 300 from loosening. As can be seen, by arranging the protruding mounting member 230, installation space can be provided for the clamping structure of the winding 300 to avoid structural interference between the clamping structure and the first stop member 220. By arranging the clamping structure, the positioning stability and reliability of the winding 300 on the motor frame 100 can be improved. Thus, the technical effects of optimizing the structure of the motor frame 100, reducing the assembly difficulty of the winding 300, and improving the positioning reliability of the winding 300 are achieved.

[0071] As shown in Figure 1 and Figure 2 、 Figure 3 and Figure 4 , in any of the above embodiments, the motor sub-frame 200 further comprises a third avoiding groove 236 arranged on the first stop member 220 and located in the second avoiding groove 234. The third avoiding groove 236 penetrates the first stop member 220 in the radial direction of the stator.

[0072] In this embodiment, following the previous embodiment, a third avoidance groove 236 is further provided on the mounting member 230 protruding from the first stopper 220. Specifically, the third avoidance groove 236 penetrates the mounting member 230 along the radial direction of the motor frame 100, and the third avoidance groove 236 intersects with the first avoidance groove 232 and the second avoidance groove 234. The third avoidance groove 236 can be provided on the upper and lower end surfaces of the portion of the mounting member 230 protruding from the first stopper 220. During the assembly of the winding 300, the winding 300 led out from the first avoidance groove 232 is clamped into the third avoidance groove 236 via the positioning groove 222 and the second avoidance groove 234, and then wound onto the adjacent motor sub-frame 200. The third avoidance groove 236 can function as a limiter, preventing the winding 300 from sliding on the mounting member 230, thereby improving the reliability and stability of the positioning of the winding 300 on the motor sub-frame 200 and reducing the difficulty of assembling the winding 300. This further achieves the technical effect of improving structural stability and facilitating the assembly of the winding 300.

[0073] Among them, the third avoidance groove 236 can be selected as a V-shaped groove or a U-shaped groove. Setting the third avoidance groove 236 as a V-shaped groove or a U-shaped groove can guide the winding 300, so that the winding 300 can be tightly tied to the root of the third avoidance groove 236 along the groove wall of the third avoidance groove 236, so as to improve the positioning stability and reliability of the winding 300.

[0074] like Figure 1 and Figure 2 As shown, in any of the above embodiments, at least one of the two groove walls of the second avoidance groove 234 is constructed as an inclined groove wall.

[0075] In this embodiment, the second avoidance groove 234 is described in detail. Specifically, on the mounting member 230, the surface defining the second avoidance groove 234 is the side wall of the second avoidance groove 234. The second avoidance groove 234 passes through the mounting member 230 in the axial direction of the motor frame 100, that is, the second avoidance groove 234 has two left and right groove walls. On this basis, at least one of the two groove walls of the avoidance groove is inclined with respect to the radial direction of the motor frame 100 to form a guiding slope that can guide the winding 300 into the second avoidance groove 234. During the assembly process, the winding 300 can be tightened in the second avoidance groove 234 by the inclined groove wall. On the one hand, the probability of the winding 300 being misinstalled can be reduced, and on the other hand, the winding 300 can be prevented from being scratched by the mounting member 230 during the installation process. Thereby, the technical effect of optimizing the structure of the mounting member 230 and reducing the difficulty of assembling the winding 300 is achieved.

[0076] like Figure 2As shown, in any of the above embodiments, the motor sub-frame 200 further includes: a second stopper 240 connected to the support member 210 and disposed at an end of the support member 210 away from the first stopper 220 .

[0077] In this embodiment, the motor sub-frame 200 is further provided with a second stopper 240, which is connected to the support member 210. Specifically, the support member 210 extends in the radial direction of the motor frame 100. The end away from the axis of the motor frame 100 is connected to the first stopper 220, thereby forming an outer annular surface of the motor frame 100 through the first stopper 220. The second stopper 240 is connected to the end closer to the axis of the motor frame 100, thereby forming an inner annular surface of the motor frame 100 through the second stopper 240. The provision of the second stopper 240 forms a stopper structure on the inner side of the connecting member 250 opposite to the first stopper 220. The winding 300 wound on the support member 210 can abut against the second stopper 240 to prevent the winding 300 from escaping from the inner end of the support member 210. This, in conjunction with the first stopper 220, accurately positions the winding 300 wound on the support member 210. This can optimize the structure of the motor sub-frame 200, improve the positioning stability and reliability of the winding 300, and reduce the failure rate of the motor.

[0078] like Figure 2 As shown, in any of the above embodiments, the motor sub-frame 200 further includes: a mounting groove 242, which is provided on the second stopper 240, and the mounting groove 242 is used to accommodate insulating paper.

[0079] In this embodiment, a mounting groove 242 is provided on the second stopper 240, and the mounting groove 242 is used to plug in the insulating paper in the motor. By providing the mounting groove 242 on the second stopper 240, convenient conditions can be provided for positioning and installing the insulating paper. Specifically, insulating paper is a composite insulating material often used when the motor winding adopts an enameled wire solution. The material is made of insulating materials of different materials bonded by special glue to form different insulation grades and heat resistance grades to meet the needs of motor windings with different performance requirements. The insulating paper is mainly used as insulation between the winding 300 and the core slot, and can also be used for interphase insulation of the windings of multi-phase motors. This improves the safety and reliability of the motor and reduces the failure rate of the motor.

[0080] like Figure 1 and Figure 3 As shown, in any of the above embodiments, the number of the plurality of positioning grooves 222 is greater than or equal to three.

[0081] In this embodiment, the number of positioning slots 222 is limited. Specifically, the number of positioning slots 222 is not less than three, that is, the number of phases of the motor applicable to the motor skeleton 100 is greater than or equal to three. Among them, the number of positioning slots 222 is the same as the number of windings 300, only one winding 300 is arranged in each positioning slot 222, and the position of the positioning slot 222 of each winding 300 on the motor sub-skeleton 200 remains unchanged to avoid the winding 300 from crossing between multiple motor sub-skeletons 200. This achieves the technical effect of optimizing the layout of the winding 300, improving the positioning reliability of the winding 300, and reducing the failure rate and disassembly difficulty of the winding 300.

[0082] like Figure 1 、 Figure 2 and Figure 3 As shown, in any of the above embodiments, the motor sub-skeleton 200 also includes: at least two isolation members 238, arranged at the end of the portion of the mounting member 230 protruding from the first stop member 220; and an isolation groove 224, arranged on the side of the first stop member 220 facing away from the mounting member 230.

[0083] In this embodiment, the motor sub-frame 200 is further provided with an isolation member 238 and an isolation slot 224. Specifically, the isolation member 238 is disposed on the mounting member 230 that protrudes from the first stop member 220, specifically on the end of the mounting member 230 that is distal from the first stop member 220. Correspondingly, the isolation slot 224 is formed on the side of the first stop member 220 that faces away from the protruding mounting member 230, thereby forming opposing isolation members 238 and isolation slots 224 on the left and right sides of the first stop member 220. Furthermore, the first stop member 220 extends along a pitch circle centered on the axis of the motor frame 100, with the isolation slots 224 and isolation members 238 alternating along this pitch circle. After multiple motor sub-frames 200 are assembled, the isolation members 238 and isolation slots 224 on two adjacent motor sub-frames 200 define a wiring slot for the winding wires 300 to pass through in the gap between the two motor sub-frames 200. The wiring groove can effectively separate the windings 300 between two adjacent motor sub-skeletons 200, and prevent multiple windings 300 from crossing and entangled in the area between adjacent motor sub-skeletons 200. After the assembly of multiple motor sub-skeletons 200 is completed, the distance between the isolation member 238 and the isolation groove 224 on the two adjacent motor sub-skeletons 200 is less than the diameter of the winding 300, so as to ensure that the winding 300 will not move in the multiple wiring grooves divided by the isolation member 238 and the isolation groove 224. This achieves the technical effect of optimizing the positioning structure of the winding 300, improving the positioning accuracy and positioning reliability of the winding 300, and reducing the failure rate of the winding 300.

[0084] Specifically, when the motor frame 100 is suitable for a three-phase motor, two isolation members 238 are set on each motor sub-frame 200. After the assembly of the motor sub-frame 200 is completed, the two isolation members 238 form a wiring groove in a straight line, and two other wiring grooves are formed between the two isolation members 238 and the groove wall of the isolation groove 224, so that the three windings 300 can be wound onto the adjacent motor sub-frame 200 through the above three wiring grooves.

[0085] like Figure 3 As shown, in any of the above embodiments, the isolation piece 238 of one motor sub-frame 200 can be inserted into the isolation slot 224 of another adjacent motor sub-frame 200 .

[0086] In this embodiment, the isolating piece 238 on the motor sub-skeleton 200 can be inserted into the positioning groove 222 on the adjacent motor sub-skeleton 200. By providing the isolating piece 238 and the isolating groove 224 that can be plugged into each other, the positioning of multiple motor sub-skeletons 200 can be assisted, thereby providing convenient conditions for the assembly of the motor sub-skeleton 200. At the same time, the plug-in isolating piece 238 and the isolating groove 224 can also limit the amplitude of the motor sub-skeleton 200 in the axial direction of the stator when the motor vibrates during operation, thereby preventing multiple motor sub-skeletons 200 from disintegrating during the vibration process. This thereby achieves the technical effect of optimizing the structure of the motor sub-skeleton 200, improving the structural stability and compactness of the motor skeleton 100, and reducing the motor failure rate.

[0087] like Figure 1 and Figure 2 As shown, in any of the above embodiments, the motor sub-frame 200 further includes: a connecting member 250, which is provided on the surface of the supporting member 210 away from the first stopper 220 and is used for connecting the stator.

[0088] In this embodiment, a connector 250 is further provided on the motor sub-skeleton 200. Specifically, the connector 250 is provided on the support member 210 and is connected to the surface of the support member 210 that faces away from the first stop member 220. By providing the connector 250 on the motor sub-skeleton 200, a reasonable tolerance setting between the connector 250 and the stator can be used to ensure that the motor sub-skeleton 200 does not separate from the stator after installation. Specifically, the connector 250 is a waist-shaped column, and a corresponding waist-shaped hole is provided on the stator. By providing this corresponding connection structure, the motor sub-skeleton 200 can be prevented from rotating on the stator, thereby improving the positioning stability and reliability of the motor sub-skeleton 200.

[0089] Example 2

[0090] like Figure 2 and Figure 3 As shown, a second aspect of the present invention provides a stator assembly, which includes: a motor frame 100 as in any of the above embodiments.

[0091] In this embodiment, a stator assembly is defined that includes the motor frame 100 described in any of the above embodiments. Therefore, this stator assembly possesses the advantages of the motor frame 100 described in any of the above embodiments and can achieve the technical effects achieved by the motor frame 100 described in any of the above embodiments. To avoid repetition, further details will be omitted here.

[0092] In any of the above embodiments, the stator assembly further includes: a stator core connected to the motor frame 100 .

[0093] In this embodiment, a stator core is further provided in the stator assembly, and the stator core is plugged into the motor frame 100. Specifically, the motor sub-frames 200 are arranged opposite to each other and spaced apart in the axial direction of the motor frame 100, and the stator core is located between the two motor sub-frames 200.

[0094] Example 3

[0095] A third aspect of the present invention provides a motor, which includes the stator assembly in any one of the above embodiments.

[0096] This embodiment defines a motor equipped with the stator assembly described in any of the above embodiments. Therefore, this motor possesses the advantages of the stator assembly described in any of the above embodiments and can achieve the technical effects achieved by the stator assembly described in any of the above embodiments. To avoid repetition, further details will be omitted here.

[0097] In any of the above embodiments, the motor further includes a rotor assembly.

[0098] Example 4

[0099] A fourth aspect of the present invention provides a compressor, which includes: the motor in the above embodiment.

[0100] This embodiment defines a compressor equipped with the motor described in any of the above embodiments. Therefore, this compressor possesses the advantages of the motor described in the above embodiments and can achieve the technical effects achieved by the motor described in the above embodiments. To avoid repetition, further details will be omitted here.

[0101] In any of the above embodiments, the compressor further includes a crankshaft connected to the output end of the motor.

[0102] In the description of the present invention, the term "plurality" refers to two or more than two. Unless otherwise expressly defined, the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship described in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention. The terms "connection", "installation", "fixed", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0103] In the description of the present invention, the terms "one embodiment," "some embodiments," "specific embodiments," etc., mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In the present invention, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0104] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A motor frame, characterized in that: The motor frame is used to support the stator and the rotor, and the motor frame includes: A plurality of motor sub-frames that can be spliced ​​and connected, the motor sub-frames comprising: A support member for carrying the winding wire; a first stopper connected to the support member; a plurality of positioning grooves, provided on the first stopper and extending along the circumference of the stator, the plurality of positioning grooves being used to accommodate the windings; a mounting member, arranged on a surface of the first stopper facing away from the support member, wherein the plurality of positioning grooves are arranged on the mounting member along the circumference of the stator; The mounting member is detachably connected to the first stop member; At least a portion of the mounting member protrudes from the first stop member, and the motor sub-frame further includes: A second avoidance groove is provided at a portion of the mounting member protruding from the first stop member. The second avoidance groove extends along the axial direction of the stator and passes through the plurality of positioning grooves. The second avoidance groove is used to accommodate a fixing member for fixing the winding.

2. The motor frame according to claim 1, characterized in that: The motor sub-skeleton also includes: a first avoidance groove, provided through the first stopper and the mounting member; Wherein, along the axial direction of the stator, the first avoidance groove extends from the free end of the first stopper to the connection between the first stopper and the support member, and the first avoidance groove is used to accommodate the winding.

3. The motor frame according to claim 2, characterized in that: The motor sub-skeleton also includes: The third avoidance groove is provided on the first stopper and is located in the second avoidance groove. The third avoidance groove passes through the first stopper along the radial direction of the stator.

4. The motor frame according to claim 2, characterized in that: At least one of the two groove walls of the second avoidance groove is configured as an inclined groove wall.

5. The motor frame according to claim 1, characterized in that: The motor sub-skeleton also includes: The second stopper is connected to the support member and is arranged at an end of the support member away from the first stopper.

6. The motor frame according to claim 5, characterized in that: The motor sub-skeleton also includes: A mounting groove is provided on the second stopper, and the mounting groove is used to accommodate insulating paper.

7. The motor frame according to any one of claims 1 to 6, characterized in that: The number of the plurality of positioning grooves is greater than or equal to 3.

8. The motor frame according to any one of claims 2 to 6, characterized in that: The motor sub-skeleton also includes: at least two spacers, disposed at ends of a portion of the mounting member protruding from the first stopper; The isolation groove is arranged on a side of the first stopper facing away from the mounting member.

9. The motor frame according to claim 8, characterized in that: The isolating piece of one motor sub-frame can be inserted into the isolating slot of another adjacent motor sub-frame, so that multiple motor sub-frames can be detachably connected.

10. The motor frame according to any one of claims 1 to 6, characterized in that: The motor sub-skeleton also includes: A connecting member is provided on a surface of the supporting member facing away from the first stopper and is used for connecting the stator.

11. A stator assembly, characterized in that: include: The motor frame according to any one of claims 1 to 10.

12. The stator assembly according to claim 11, characterized in that The stator assembly further comprises: The stator core is connected to the motor frame.

13. A motor, characterized in that: include: A stator assembly as claimed in claim 11 or 12.

14. A compressor, characterized in that: include: The motor as claimed in claim 13.

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