WO2023087574A1

WO2023087574A1 - Motor framework, stator assembly, motor, compressor, and refrigeration device

Info

Publication number: WO2023087574A1
Application number: PCT/CN2022/079420
Authority: WO
Inventors: 毛临书; 杨文权; 邱小华
Original assignee: 广东美芝制冷设备有限公司
Priority date: 2021-11-19
Filing date: 2022-03-04
Publication date: 2023-05-25
Also published as: CN117277635A; CN117277637A; CN117277636A; CN114094745A; CN117277638A; CN117294041A

Abstract

The present application provides a motor framework, a stator assembly, a motor, a compressor and a refrigeration device. The motor framework comprises multiple sub-frameworks. A sub-framework comprises: a framework tooth part used to carry a winding; a framework yoke part connected to the framework tooth part; multiple first positioning grooves provided at the framework yoke part and extending along a circumferential direction of the stator assembly; a supporting part, disposed at the framework yoke part and intercepting the sub-framework along the radial direction of the stator assembly, the distance between the periphery of the supporting part and the axis of the stator assembly being H1, the distance between the periphery of the framework yoke part and the axis of the stator assembly being H2, and H1 being larger than H2; and a connecting wire used for connecting windings on two framework tooth parts, the connecting wire penetrating through the first positioning groove and passing through the supporting part, and the supporting part being used to lift the connecting wire in a direction away from the axis of the stator assembly. The supporting part is disposed on the framework yoke part, the connecting wire can pass through the supporting part, and the supporting part provides a function of lifting the connecting wire, so that looseness of the connecting wire can be avoided.

Description

Motor skeletons, stator assemblies, motors, compressors and refrigeration equipment

This application requires the submission of a Chinese patent application with the application number "202111376092.X" and the application name "motor frame, stator assembly, motor, compressor and refrigeration equipment" submitted to the State Intellectual Property Office of China on November 19, 2021. priority, the entire contents of which are incorporated by reference into this application.

technical field

The present application belongs to the field of motor technology, and in particular, relates to a motor frame, a stator assembly, a motor, a compressor and refrigeration equipment.

Background technique

The axial end of the iron core of the stator assembly needs to be assembled with a motor skeleton, and a part of the coil will be wound on the motor skeleton during the coil winding process. For the segmented stator assembly core, before the motor skeleton is assembled to the stator assembly core, the coil is threaded on multiple motor skeletons in a straight line. When the motor skeleton is assembled on the stator assembly core, the coil is Circumferentially pierced on multiple motor skeletons.

When the coil changes from a linear shape to a circular shape, the coil is prone to looseness, which easily reduces the reliability of the motor.

application content

This application aims to solve one of the technical problems existing in the prior art or related art.

In view of this, in the first aspect, the present application proposes a motor skeleton, the motor skeleton is connected with the stator assembly, the motor skeleton includes: a plurality of sub-skeletons, the sub-skeleton includes: skeleton teeth, used to carry winding; skeleton yoke , which is connected to the teeth of the skeleton; a plurality of first positioning grooves are arranged on the yoke of the skeleton and extend along the circumferential direction of the stator assembly; the support part is arranged on the yoke of the skeleton and intercepts the sub-frame along the radial direction of the stator assembly, and the support part The distance between the outer circumference of the skeleton yoke and the axis of the stator assembly is H1, the distance between the outer circumference of the skeleton yoke and the axis of the stator assembly is H2, H1>H2; the connection line is used to connect the windings on the two skeleton teeth, and the connection line passes through Through the first positioning slot, the connecting wire passes through the supporting part, and the supporting part is used to lift the connecting wire in a direction away from the axis of the stator assembly.

For the motor skeleton provided in this application, the end of the stator assembly needs to be installed with the motor skeleton, which can play an insulating role.

In order to reduce the processing difficulty of the stator assembly and improve the slot fill rate of the motor, the stator assembly is set as a split structure. The stator assembly includes a plurality of stator blocks. By setting a plurality of stator punching blocks, only a plurality of stator punching blocks can be processed when processing a stator assembly, and then a plurality of stator punching block parts are assembled into a stator assembly. Compared with processing a complete stator assembly, The difficulty of processing the stator block parts is reduced, thereby reducing the production cost. The structure of the stator assembly is simple, and the automatic production of the stator assembly can be realized through an automatic production line.

Moreover, the stator assembly is designed as a split splicing structure, which is convenient for coil winding. After the coil winding is completed, two adjacent stator punching blocks can be installed to reduce the difficulty of coil winding, so the stator assembly can In the case of the same size, more coils are wound and the number of turns of the coils is increased, which is conducive to improving the slot fill rate of the motor. On the basis of not increasing the size of the motor, the number of turns of the coil is increased, so the output torque of the motor and the efficiency of the motor can be improved.

There is a first positioning groove on the yoke of the frame, and the connecting wire can pass through the first positioning groove. The first positioning groove acts as a limiter for the connecting wire, avoiding the shaking of the connecting wire relative to the yoke of the skeleton, and improving the stability of the winding process. . For a multi-phase motor, during the winding process, the end of the winding will pass through the skeleton yoke, and the connecting wire can play a connecting role. The connecting wire is used to connect the ends of the winding passing through the two skeleton yokes.

After the processing of the motor skeleton is completed, at least two sub-skeletons are distributed sequentially along the same straight line. When it is necessary to connect the sub-skeleton with the stator punch block, at least two sub-skeletons need to be distributed along the circumferential direction of the stator assembly, that is, two adjacent sub-skeletons The frame needs to be rotated by a certain angle so that the sub-frame corresponds to the position of the stator punch block. When multiple sub-skeletons change from straight line distribution to circular distribution, the winding paths on multiple sub-skeletons change from straight lines inward to curved lines, so the winding paths on multiple sub-skeletons will be reduced. In the present application, a supporting part is provided on the yoke of the skeleton, the connecting wire can pass through the supporting part, and the supporting part plays a role of jacking up the connecting wire, which can prevent the connecting wire from being loose.

Specifically, the distance between the outer circumference of the support part and the axis of the stator assembly is H1, the distance between the outer circumference of the skeleton yoke and the axis of the stator assembly is H2, and H1 is greater than H2. Compared with the outer circumference of the skeleton yoke, the outer circumference of the support part is closer away from the axis of the stator assembly, so when the connecting wire passes through the supporting part, the supporting part can lift the connecting wire in a direction away from the axis of the stator assembly. The length of the supporting part that lifts up the connecting wire offsets the length of the loosening of the connecting wire, so the connecting wire will not be loose. The connecting wire can be stably wound on the skeleton yoke, and the connecting wire is not easy to be separated from the skeleton yoke. Ensure the reliability of the motor.

It should be noted that the first positioning groove protrudes from the outer peripheral surface of the skeleton yoke, and the outer periphery of the skeleton yoke mentioned in this application is not the outer periphery of the first positioning groove.

In addition, according to the motor frame in the above technical solution provided by this application, it may also have the following additional technical features:

In any of the above-mentioned technical solutions, the sub-skeleton is cut along the radial direction of the stator assembly, the centerline of the tooth part of the skeleton is L1, the intersection point of the side of the yoke of the skeleton yoke facing the axis of the stator assembly and the centerline L is A, and The intersection point of the center line L1 and the axis of the stator assembly is a circle point, and the distance between the circle point and the intersection point A is used as the radius to make a circle to obtain a circle C; let the straight line passing through the intersection point A be a straight line L2, and the straight line L2 is close to the center line L1 For the direction deflection of the supporting part, the angle θ between the straight line L2 and the center line satisfies: 80°<θ<90°; wherein, the supporting part is located between the circle C and the straight line L2.

In this technical solution, in order to ensure that the supporting part can effectively lift up the connecting wire, it is necessary to limit the setting range of the supporting part.

Specifically, the sub-skeleton is cut along the radial direction of the stator assembly to obtain a cross-section of the sub-skeleton, and the description of the skeleton yoke in this design is aimed at the cross-section of the skeleton yoke. The skeleton yoke has a centerline, which can be the symmetry line of the skeleton yoke, the centerline of the skeleton yoke is L1, and the side of the skeleton yoke connected to the skeleton teeth has an intersection with the centerline L1, that is, intersection point A. Take the intersection point of the center line L1 and the axis of the stator assembly as a circle point, and make a circle with the distance from the circle point to the intersection point A as the radius to obtain a circle C. At this time, a boundary of the above-mentioned range is determined.

The straight line L2 passes through the intersection point A, and there is an included angle θ between the straight line L2 and the centerline L1. Compared with the centerline L1, the straight line L2 deflects toward the direction close to the support part, and the included angle θ between the straight line L2 and the centerline L1 is between 80° and 90° °, thereby defining another boundary of the above-mentioned range.

The support part is located between the above two boundaries, that is, the support part is located between the circle C and the straight line L2. If the support part is too far away from the circle C, the distance between the support part and the axis of the stator assembly is small, which will lead to the support part. The distance between the outer circumference and the axis of the stator assembly is smaller than the distance between the outer circumference of the skeleton yoke and the axis of the stator assembly. At this time, the support part not only cannot support the connecting wires, but also causes the connecting wires to loosen further. If the support part deviates too much from the straight line L2, it will cause the support part to deviate too much from the axis of the stator assembly, and the support part may protrude from the outer periphery of the stator assembly. At this time, the support part will interfere with the installation of the stator assembly and the housing.

Defining the support part between the circle C and the straight line L2, the support part can not only effectively support the connecting wire, but also avoid the outer periphery of the stator assembly protruding from the support part, and avoid interference with the assembly of the stator assembly and the housing.

In any one of the above technical solutions, the support portion is arranged on the peripheral edge of the yoke portion of the tooth portion.

In any of the above technical solutions, let the tangent of the intersection A be B, and the supporting part is located between the tangent B and the circle C.

In this technical solution, the setting position of the support part is further limited. Specifically, the yoke of the skeleton is an arc-shaped structure, and a tangent line is made at the intersection point A to obtain a tangent line B, and the supporting part is located between the tangent line B and the circle C. The support part is located within this range, which can further avoid the support part from interfering with the assembly of the stator assembly and the housing.

In any of the above technical solutions, the stator assembly includes a plurality of stator punching blocks, and the plurality of stator punching blocks are sequentially spliced along the circumference of the stator assembly, the number of motor skeletons is at least two, and one sub-skeleton is connected to one stator punching block; The sub-skeleton and the stator assembly are cut along the radial direction of the stator assembly, and the supporting part protrudes from an edge extending in the radial direction of the stator punch block.

In this technical solution, the number of edge skeletons is at least two, and each motor skeleton includes at least two sub-skeletons, and the adjacent two sub-skeletons in the at least two sub-skeletons are connected, that is, each motor skeleton includes at least two sequentially connected sub-skeleton. A sub-skeleton is connected with a stator block, that is, the relationship between the sub-skeleton and the stator block is one-to-one. Since each motor skeleton includes at least two sub-skeletons, when assembling at least two sub-skeletons and stator punching blocks, it will indicate that two sub-skeletons are aligned with at least two stator punching blocks, and the assembly of at least two sub-skeletons is completed at one time . That is, a motor frame is installed, and the assembly indicating two sub-frames and at least two stator punching blocks is completed. Compared with the method of multiple installations of the skeleton and the stator block in the related art, the motor skeleton is set as at least two sequentially connected insulator skeletons in this application, which reduces the assembly process in the assembly process of the stator assembly and reduces the difficulty of assembly , which is conducive to improving the production efficiency of the stator assembly.

The number of motor skeletons is at least two, and at least two motor skeletons can be installed in turn. Setting at least two motor skeletons can facilitate the alignment of sub-frames and stator punching blocks, further improving the convenience in the assembly process.

Since each motor skeleton includes at least two sub-skeletons, at least two sub-skeletons can be produced at one time during the production of the motor skeleton, reducing processing steps and further improving the production efficiency of the motor.

The number of sub-frames in different motor frames can be the same or different. For example, when the number of stator blocks is 6, two motor frames can be used to connect with 6 stator blocks. The two motor skeletons can respectively include 3 sub-skeletons. It is also possible that one motor skeleton includes 2 sub-skeletons, and the other motor skeleton includes 4 sub-skeletons.

The support part protrudes from an edge extending in the radial direction of the stator block, so the support part is arranged at one end of the skeleton yoke. Compared with the skeleton yoke in the related art, the support part is provided at the end of the skeleton yoke in the present application, which is equivalent to lengthening the skeleton yoke, and the support part is provided at the end of the skeleton yoke, which can improve the efficiency of processing the support part. convenience. Moreover, compared with the frame yoke in the related art, the method of lengthening the frame yoke requires less structural changes to the frame yoke, which can reduce the difficulty of processing the motor frame.

In any of the above technical solutions, the sub-skeleton further includes: a second positioning slot provided on the support part, and the connecting wire passes through the second positioning slot.

In this technical solution, a second positioning groove is processed and formed on the supporting part, and the connecting wire can pass through the second positioning groove. The second positioning groove acts as a limiter for the connecting wire, and the connecting wire is not easy to slide relative to the supporting part, so that the supporting part can stably support the connecting wire and ensure that the coil is tightly wound on the skeleton yoke.

In any of the above technical solutions, the width of the first positioning groove is W, and the maximum diameter of the connecting wire is D, satisfying: W≥1.4×D.

In this technical solution, the dimensional relationship between the width of the first positioning groove and the wire diameter of the connecting wire is defined. If the width of the first positioning groove is smaller than the maximum wire diameter of the connecting wire, the connecting wire will be squeezed and deformed by the first positioning groove, which may cause damage to the connecting wire. If the width of the first positioning groove is basically the same as the maximum wire diameter of the connecting wire, the connecting wire needs to be aligned with the first positioning groove to assemble the connecting wire into the first positioning groove. This assembly method requires high positioning requirements, resulting in Assembly is difficult. Therefore, the width W of the first positioning slot is defined in the present application to be greater than or equal to 1.4×D, and the connecting wire can be easily assembled into the first positioning slot, which can improve the convenience of the winding process.

In any of the above technical solutions, the skeleton yoke includes: a connection part connected to the skeleton tooth part; a wire routing part connected to the connection part, the connection part is located between the wire routing part and the skeleton tooth part, and the first positioning groove is arranged on wiring department.

In this technical solution, the connecting part and the wiring part extend along the axial direction of the stator assembly, and the first positioning groove is provided on the wiring part, and the connecting part spaces the wiring part and the skeleton tooth part, so that the first positioning groove and the The skeleton teeth keep a certain distance. During the winding process, the wiring in the first positioning groove and the wiring on the tooth portion of the skeleton are not easily mixed, which improves the convenience of the winding process.

In any of the above technical solutions, the thickness of the connection part is L3, and the thickness of the wiring part is L4, satisfying: L4≥0.8×L3.

In this technical solution, the relative relationship between the thickness of the connection part and the thickness of the routing part is defined. Since the first positioning groove is provided on the routing part, the thickness of the routing part can be appropriately reduced to avoid the insulation hanger from being positioned on the routing part. The thickness at the line portion is greater and reduced for the installation process. In addition, the connection part plays the role of connecting the wiring part and the skeleton tooth part, so it is necessary to ensure the thickness of the connection part and ensure the structural stability of the motor skeleton. It should be noted that the thickness of the connecting portion refers to the dimension of the connecting portion extending in the radial direction. The wiring department is the same.

In a second aspect, the present application proposes a stator assembly, including: the motor skeleton as in the first aspect; the stator assembly connected to the motor skeleton.

In a third aspect, the present application provides a motor, such as the stator assembly in the second aspect and the winding wound on the stator assembly; the rotor is arranged in the stator assembly.

In a fourth aspect, the present application provides a compressor, including: the stator assembly in any possible design of the second aspect; or the motor in any possible design of the third aspect.

In a fifth aspect, the present application provides a refrigeration device, including: the stator assembly in any possible design of the second aspect; or the motor in the third aspect; or the compressor in the fourth aspect.

Additional aspects and advantages of the application will become apparent in the description which follows, or may be learned by practice of the application.

Description of drawings

The above and/or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 shows one of the structural schematic diagrams of the sub-skeleton in the embodiment of the present application;

Fig. 2 shows the second structural schematic diagram of the sub-skeleton in the embodiment of the present application;

Fig. 3 shows the schematic structural view of the motor skeleton in the embodiment of the present application;

Fig. 4 shows the third structural schematic diagram of the sub-skeleton in the embodiment of the present application;

Fig. 5 shows a schematic structural diagram of a compressor in an embodiment of the present application.

Wherein, the corresponding relationship between reference numerals and component names in Fig. 1 to Fig. 5 is:

100 motor skeleton, 110 sub-skeleton, 111 skeleton tooth, 112 skeleton yoke, 1121 connecting part, 1122 wiring part, 113 first positioning slot, 114 supporting part, 115 connecting line, 200 stator assembly, 210 stator punching block, 300 rotor, 400 compressor, 410 compression parts, 411 cylinder, 412 piston, 420 crankshaft, 430 main bearing, 440 auxiliary bearing, 450 liquid reservoir.

Detailed ways

In order to better understand the above-mentioned purpose, features and advantages of the present application, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

In the following description, many specific details are set forth in order to fully understand the application, but the application can also be implemented in other ways different from those described here, therefore, the protection scope of the application is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

The motor frame, stator assembly, motor, compressor and refrigeration equipment provided according to some embodiments of the present application are described below with reference to FIGS. 1 to 5 .

As shown in FIG. 1 , FIG. 2 , FIG. 3 and FIG. 4 , in the embodiment of the present application, a motor frame 100 is proposed, the motor frame 100 is connected with the stator assembly 200 , and the motor frame 100 includes: a plurality of sub-frames 110 Any sub-skeleton 110 in the plurality of sub-skeletons 110 includes: a skeleton tooth portion 111, a skeleton yoke portion 112, a plurality of first positioning grooves 113, a support portion 114 and a connecting wire 115, and the skeleton tooth portion 111 is used to carry winding wires; The skeleton yoke 112 is connected to the skeleton tooth 111; a plurality of first positioning slots 113 are arranged on the skeleton yoke 112 and extend along the circumferential direction of the stator assembly 200; The sub-skeleton 110 is taken radially, the distance between the outer circumference of the support part 114 and the axis of the stator assembly 200 is H1, the distance between the outer circumference of the skeleton yoke 112 and the axis of the stator assembly 200 is H2, H1>H2; the connecting line 115 is used to connect The winding on the two skeleton tooth parts 111 , the connecting wire 115 passes through the first positioning slot 113 , the connecting wire 115 passes through the supporting part 114 , and the supporting part 114 is used to lift the connecting wire 115 away from the axis of the stator assembly 200 .

In the motor skeleton 100 provided in this embodiment, the end of the stator assembly 200 needs to be installed with the motor skeleton 100 , and the motor skeleton 100 can play the role of winding and insulation.

In order to reduce the processing difficulty of the stator assembly 200 and improve the slot fill rate of the motor, the stator assembly 200 is configured as a split structure. The stator assembly 200 includes a plurality of stator blocks 210 . By arranging a plurality of stator punch blocks 210, only a plurality of stator punch blocks 210 can be processed when processing the stator assembly 200, and then the parts of the plurality of stator punch blocks 210 are assembled into the stator assembly 200, compared with processing one With the complete stator assembly 200, the difficulty of processing the stator block 210 is reduced, thereby reducing the production cost. This type of stator assembly has a simple structure, and the automatic production of the stator assembly 200 can be realized through an automated production line.

Moreover, the stator assembly 200 is designed as a split splicing structure, which is convenient for coil winding. After the coil winding is completed, two adjacent stator punching blocks 210 can be installed to reduce the difficulty of coil winding, so it can When the size of the stator assembly 200 is the same, more coils are wound and the number of turns of the coils is increased, which is beneficial to improve the slot fullness ratio of the motor. On the basis of not increasing the size of the motor, the number of turns of the coil is increased, so the output torque of the motor and the efficiency of the motor can be improved.

The skeleton yoke 112 is provided with a first positioning groove 113, the connecting wire 115 can pass through the first positioning groove 113, the first positioning groove 113 acts as a limiter for the connecting wire 115, and prevents the connecting wire 115 from shaking relative to the skeleton yoke 112 , to improve the stability of the winding process. For a multi-phase motor, during the winding process, the end of the winding will pass through the skeleton yoke 112, and the connecting wire 115 can play a connecting role. the end of.

After the motor skeleton 100 is processed, at least two sub-skeletons 110 are distributed sequentially along the same straight line. When the sub-skeleton 110 needs to be connected with the stator punch block 210, at least two sub-skeletons 110 need to be distributed along the circumferential direction of the stator assembly 200. , that is, two adjacent sub-frames 110 need to be rotated by a certain angle, so that the positions of the sub-frames 110 and the stator block 210 correspond to each other. When the distribution of the sub-skeletons 110 changes from a straight line to a circular distribution, the winding paths on the sub-skeletons 110 change from a straight line inward to a curved line, so the winding paths on the sub-skeletons 110 will decrease. In the present application, a support portion 114 is provided on the skeleton yoke portion 112 , and the connecting wire 115 can pass through the supporting portion 114 . The supporting portion 114 plays a role of jacking up the connecting wire 115 and can prevent the connecting wire 115 from being loose.

Specifically, the distance between the outer circumference of the support portion 114 and the axis of the stator assembly 200 is H1, the distance between the outer circumference of the skeleton yoke 112 and the axis of the stator assembly 200 is H2, and H1 is greater than H2. Compared with the outer circumference of the skeleton yoke 112, The outer periphery of the support portion 114 is further away from the axis of the stator assembly 200 , so when the connection wire 115 passes through the support portion 114 , the support portion 114 can lift the connection wire 115 away from the axis of the stator assembly 200 . The length of the supporting part 114 that lifts the connecting wire 115 offsets the length of the loosening of the connecting wire 115, so the connecting wire 115 will not be loose. The connecting wire 115 can be stably wound on the skeleton yoke 112, and the connecting wire 115 It is not easy to separate from the frame yoke 112, ensuring the reliability of the motor.

It should be noted that the outer circumference of the support portion 114 refers to the side of the support portion 114 away from the stator assembly 200 . The outer circumference of the skeleton yoke 112 refers to the side of the skeleton yoke 112 facing away from the stator assembly 200 .

It should be noted that the first positioning groove 113 protrudes from the outer peripheral surface of the skeleton yoke 112 , and the outer periphery of the skeleton yoke 112 mentioned in this application is not the outer periphery of the first positioning groove 113 .

It should be noted that the winding wire on the tooth portion of the skeleton and the connecting wire 115 can be an integrated wire body or a separate wire body.

As shown in FIG. 2 and FIG. 3 , in a possible embodiment, the sub-skeleton 110 is cut along the radial direction of the stator assembly 200 , the centerline of the tooth portion 111 of the skeleton is L1, and the yoke portion 112 of the skeleton faces toward the stator assembly 200 The intersection of one side of the axis and the center line L is A, the intersection of the center line L1 and the axis of the stator assembly 200 is a circle point, and the distance between the circle point and the intersection point A is used as a radius to make a circle to obtain a circle C; The straight line of A is straight line L2, and the straight line L2 deflects toward the direction close to the support part 114 relative to the centerline L1, and the angle θ between the straight line L2 and the center line satisfies: 80°<θ<90°; wherein, the support portion 114 is located in the circle C and line L2.

It should be noted that, the centerline of the frame tooth portion 111 refers to the midline of the frame tooth portion 111 along the width direction.

In this embodiment, in order to ensure that the supporting portion 114 can effectively lift up the connecting wire 115 , the setting range of the supporting portion 114 needs to be limited.

Specifically, the sub-skeleton 110 is cut along the radial direction of the stator assembly 200 to obtain a cross-section of the sub-skeleton 110 , and the description for the skeleton yoke 112 in this embodiment is aimed at the cross-section of the skeleton yoke 112 . The skeleton yoke 112 has a centerline, which can be the symmetry line of the skeleton yoke 112, the centerline of the skeleton yoke 112 is L1, and the side of the skeleton yoke 112 connected to the skeleton tooth 111 has an intersection point with the centerline L1 , which is the intersection point A. The intersection of the central line L1 and the axis of the stator assembly 200 is used as a circle point, and the distance from the circle point to the intersection point A is used as a radius to form a circle to obtain a circle C. At this time, a boundary of the above-mentioned range is determined.

The straight line L2 passes through the intersection point A, and there is an included angle θ between the straight line L2 and the centerline L1, wherein the straight line L2 deflects in a direction close to the support portion 114 compared to the centerline L1, and the included angle θ between the straight line L2 and the centerline L1 is between 80° and 90°, thereby defining another boundary of the above-mentioned range.

The support portion 114 is located between the above two boundaries, that is, the support portion 114 is located between the circle C and the straight line L2. If the support portion 114 is too biased towards the circle C, the distance between the support portion 114 and the axis of the stator assembly 200 is relatively small. The distance between the outer circumference of the support part 114 and the axis of the stator assembly 200 is smaller than the distance between the outer circumference of the skeleton yoke 112 and the axis of the stator assembly 200. At this time, the support part 114 not only cannot play a supporting role on the connecting wire 115, but also causes The connecting wire 115 is further loosened. If the support part 114 is too biased towards the straight line L2, it will cause the support part 114 to deviate too much from the axis of the stator assembly 200, and it may happen that the support part 114 protrudes from the outer periphery of the stator assembly 200. At this time, the support part 114 will be opposite to the stator assembly 200. Interference with the installation of the housing.

The support part 114 is defined between the circle C and the straight line L2, the support part 114 can not only effectively support the connecting wire 115, but also prevent the support part 114 from protruding from the outer periphery of the stator assembly 200, avoiding damage to the stator assembly 200 and The assembly of the housing interferes.

In a possible embodiment, the support portion 114 is disposed on a peripheral edge of the yoke of the tooth portion.

In a possible embodiment, assume that the tangent of the intersection point A is B, and the support portion 114 is located between the tangent B and the circle C.

In this embodiment, the setting position of the support part 114 is further limited. Specifically, the skeleton yoke portion 112 is an arc structure, and a tangent line is drawn at the intersection point A to obtain a tangent line B, and the support portion 114 is located between the tangent line B and the circle C. The supporting portion 114 is located within this range, which can further prevent the supporting portion 114 from interfering with the assembly of the stator assembly 200 and the casing.

As shown in FIG. 2 and FIG. 3 , in a possible embodiment, the stator assembly 200 includes a plurality of stator punch blocks 210, and the plurality of stator punch blocks 210 are sequentially spliced along the circumferential direction of the stator assembly 200, and the number of motor skeletons is At least two, a sub-frame 110 is connected to a stator block 210 ; the sub-frame 110 and the stator assembly 200 are cut along the radial direction of the stator assembly 200 , and the support portion 114 protrudes from an edge extending radially in the stator block 210 .

In this embodiment, the number of motor skeletons 100 is at least two, and each motor skeleton 100 includes at least two sub-skeletons 110, and at least two adjacent sub-skeletons 110 in the two sub-skeletons 110 are connected, that is, each motor skeleton 100 It includes at least two sub-skeletons 110 connected in sequence. One sub-frame 110 is connected with one stator block 210 , that is, the sub-frame 110 and the stator block 210 have a one-to-one correspondence. Since each motor frame 100 includes at least two sub-frames 110, when assembling at least two sub-frames 110 and stator punching blocks 210, it will be indicated that two sub-frames 110 are aligned with at least two stator punching blocks 210, which is completed at one time. Assembly of at least two sub-skeletons 110 . That is, installing one motor frame 100 completes the assembly of at least two sub-frames 110 and at least two stator blocks 210 . Compared with the way in which the skeleton and the stator block are installed multiple times in the related art, the motor skeleton 100 is set as at least two sequentially connected insulator skeletons 110 in this application, which reduces the assembly process in the assembly process of the stator assembly and reduces the Difficulty in assembly is conducive to improving the production efficiency of the stator assembly.

The number of motor skeletons 100 is at least two, and at least two motor skeletons 100 can be installed in turn. Setting the motor skeleton 100 to at least two can facilitate the alignment of the sub-skeleton 110 and the stator punching block 210, further improving the assembly process. convenience in.

Since each motor skeleton 100 includes at least two sub-skeletons 110 , at least two sub-skeletons 110 can be produced at one time during the production of the motor skeleton 100 , reducing processing steps and further improving the production efficiency of the motor.

The number of sub-frames 110 in different motor frames 100 may be the same or different. For example, when the number of stator blocks 210 is six, two motor frames 100 may be used to connect six stator blocks 210 . The two motor skeletons 100 may respectively include three sub-skeletons 110 . It is also possible that one motor skeleton 100 includes two sub-skeletons 110 , and the other motor skeleton 100 includes four sub-skeletons 110 .

The support portion 114 protrudes from an edge of the stator block 210 extending in the radial direction, so the support portion 114 is disposed at an end of the skeleton yoke 112 . Compared with the skeleton yoke in the related art, the support portion 114 is provided at the end of the skeleton yoke 112 in this application, which is equivalent to lengthening the skeleton yoke 112, and the support portion 114 is provided at the end of the skeleton yoke 112, which can The convenience of processing the support portion 114 is improved. Moreover, the method of lengthening the skeleton yoke 112, compared with the skeleton yoke 112 in the related art, requires less structural changes to the skeleton yoke 112, which can reduce the processing difficulty of the motor skeleton 100.

In a possible embodiment, the sub-skeleton 110 further includes: a second positioning slot, the second positioning slot is disposed on the supporting portion 114, and the connecting wire 115 passes through the second positioning slot.

In this embodiment, the supporting portion 114 is processed with a second positioning slot, and the connecting wire 115 can pass through the second positioning slot. The second positioning groove acts as a limiter for the connecting wire 115, and the connecting wire 115 is not easy to slide relative to the supporting part 114, so that the supporting part 114 can play a stably supporting role on the connecting wire 115, ensuring that the coil is tightly wound on the on the skeleton yoke 112 .

As shown in FIG. 2 and FIG. 4 , in a possible embodiment, the width of the first positioning groove 113 is W, and the maximum wire diameter of the connection line 115 is D, satisfying: W≥1.4×D.

In this embodiment, the dimensional relationship between the width of the first positioning groove 113 and the wire diameter of the connecting wire 115 is defined. If the width of the first positioning groove 113 is smaller than the maximum wire diameter of the connecting wire 115 , the first positioning groove 113 will squeeze and deform the connecting wire 115 , which may cause damage to the connecting wire 115 . If the width of the first positioning groove 113 is substantially the same as the maximum wire diameter of the connecting wire 115, the connecting wire 115 needs to be aligned with the first positioning groove 113 to assemble the connecting wire 115 into the first positioning groove 113. This assembly method requires The positioning requirements are high, resulting in greater difficulty in assembly. Therefore, the width W≧1.4×D of the first positioning groove 113 is defined in the present application, and the connecting wire 115 can be easily assembled into the first positioning groove 113 , which can improve the convenience of the winding process.

As shown in FIG. 2 and FIG. 4 , in a possible embodiment, the skeleton yoke 112 includes: a connecting portion 1121 and a wiring portion 1122 , the connecting portion 1121 is connected to the skeleton tooth portion 111 ; the wiring portion 1122 is connected to the connecting portion 1121 are connected, the connecting portion 1121 is located between the wire routing portion 1122 and the frame tooth portion 111 , and the first positioning groove 113 is provided on the wire routing portion 1122 .

In this embodiment, the connecting portion 1121 and the routing portion 1122 extend along the axial direction of the stator assembly 200, the routing portion 1122 is provided with a first positioning groove 113, and the connecting portion 1121 is connected to the routing portion 1122 and the skeleton tooth portion 111. The distance is such that the first positioning groove 113 and the skeleton tooth portion 111 maintain a certain distance. During the winding process, the wiring in the first positioning groove 113 and the wiring on the frame tooth portion 111 are not easily mixed, which improves the convenience of the winding process.

As shown in FIG. 2 and FIG. 4 , in a possible embodiment, the thickness of the connecting portion 1121 is L3, and the thickness of the wiring portion 1122 is L4, which satisfies: L4≧0.8×L3.

In this embodiment, the relative relationship between the thickness of the connection part 1121 and the thickness of the wiring part 1122 is defined. Since the first positioning groove 113 is provided on the wiring part 1122, the thickness of the wiring part 1122 can be appropriately reduced to avoid The thickness of the insulating hanger located at the wiring portion 1122 is relatively large, and the installation process is reduced. In addition, the connecting portion 1121 is used to connect the wiring portion 1122 and the frame tooth portion 111 , so the thickness of the connecting portion 1121 needs to be ensured to ensure the structural stability of the motor frame 100 .

It should be noted that the thickness of the connecting portion 1121 refers to the dimension of the connecting portion 1121 extending in the radial direction. The wiring part 1122 is the same.

In the embodiments of the present application, a stator assembly is proposed, including: the motor frame and the stator in the above embodiments, and the motor frame is connected to the stator. Therefore, the stator assembly has all the beneficial effects of the motor skeleton provided by any of the above possible embodiments.

In an embodiment of the present application, a motor is proposed, the motor includes: the stator assembly in the above embodiments and the winding wound on the stator assembly, the motor also includes a rotor, and the rotor is arranged in the stator.

The motor thus has all the benefits of the stator assembly provided by any of the above possible embodiments.

There is a stator slot inside the stator, and the rotor is set in the stator slot. Specifically, the stator and the rotor are arranged on a shaft, and the rotor can rotate relative to the stator. The rotor is provided with a magnet slot, which is used to assemble the magnet, and the magnet is installed in the magnet slot inside to form a magnetic pole. Further, windings are also provided on the stator, specifically, the windings are provided on the teeth of the stator. The stator includes stacked stator punches. The stator punches are provided with a plurality of teeth. The teeth of the stator punches are stacked to form a plurality of stator teeth. The stator teeth are arranged on the inner side of the stator, facing the rotor. Coils are wound on the stator teeth to form windings. The windings are used to generate magnetic induction lines in the energized state. When the rotor rotates relative to the stator, it is equivalent to rotating relative to the windings. The rotor rotating relative to the windings cuts the magnetic induction lines. Generate the force that drives the rotor to rotate, and then realize the operation of the motor.

As shown in Figure 5, in the embodiment of the present application, a compressor 400 is proposed, including: the stator assembly or the motor in the above embodiment, so the compressor in this embodiment has any of the above possible embodiments All benefits of the provided stator assembly or motor.

The compressor also includes a compression component, and the motor is connected to the compression component 410 .

Specifically, the compression part 410 includes a cylinder 411 and a piston 412. In order to connect the motor to the compression part 410 and drive the compression part 410 to run, some connecting parts are also provided in the compressor 400, specifically including a crankshaft 420 and a main bearing 430. With the auxiliary bearing 440, the motor is connected with the piston 412 through the crankshaft 420 to drive the piston 412 to move in the cylinder 411. The main bearing 430 and the auxiliary bearing 440 are arranged on the outside of the crankshaft 420 to support and limit the crankshaft 420, so that the crankshaft 420 can Turn normally.

The motor includes a stator assembly 200 and a rotor 300 disposed within the stator assembly 200 .

The compressor 400 also includes an accumulator 450 connected to the casing of the compressor 400 .

In the embodiment of the present application, a refrigeration device is proposed, including: the stator assembly in the above embodiment, or the motor in the above embodiment; or the compressor in the above embodiment, so the The refrigeration equipment has all the beneficial effects of the stator assembly, the motor or the compressor provided by any of the above possible embodiments.

The refrigeration equipment also includes a main body of the equipment, and the stator assembly is connected with the main body of the equipment, or the motor is connected with the main body of the equipment, or the compressor is connected with the main body of the equipment.

In this application, the term "plurality" means two or more, unless otherwise clearly defined. The terms "installation", "connection", "connection", "fixed" and other terms should be interpreted in a broad sense, for example, "connection" can be fixed connection, detachable connection, or integral connection; "connection" can be directly or indirectly through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

In the description of this specification, descriptions of the terms "one embodiment", "some embodiments", "specific embodiments" and the like mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in this application In at least one embodiment or example of . In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, various modifications and changes may be made to the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included within the protection scope of this application.

Claims

A motor frame, wherein the motor frame is connected to a stator assembly, and the motor frame includes:

A plurality of sub-skeletons, the sub-skeletons include:

Skeleton teeth, used to carry winding;

a frame yoke connected to the frame teeth;

A plurality of first positioning slots are arranged on the skeleton yoke and extend along the circumferential direction of the stator assembly;

The supporting part is arranged on the frame yoke, and cuts the sub-frame along the radial direction of the stator assembly, the distance between the outer circumference of the supporting part and the axis of the stator assembly is H1, and the outer circumference of the skeleton yoke The distance from the axis of the stator assembly is H2, H1>H2;

The connecting wire is used to connect the winding wires on the two framework teeth, the connecting wire passes through the first positioning slot, and the supporting part is used to move the connecting wire away from the stator assembly The direction of the axis jacks up.
The motor skeleton according to claim 1, wherein,

Cut the sub-skeleton along the radial direction of the stator assembly, set the centerline of the teeth of the skeleton as L1, and the intersection point of the side of the skeleton yoke facing the axis of the stator assembly and the centerline L A, taking the intersection point of the center line L1 and the axis of the stator assembly as a circle point, and making a circle with the distance between the circle point and the intersection point A as a radius, to obtain a circle C;

Let the straight line passing through the intersection point A be the straight line L2, the straight line L2 is deflected in a direction close to the support part relative to the center line L1, and the angle θ between the straight line L2 and the center line satisfies: 80° <θ<90°;

Wherein, the support portion is located between the circle C and the straight line L2.
The motor skeleton according to claim 2, wherein,

Let the tangent of the intersection point A be B, and the support portion is located between the tangent B and the circle C.
The motor skeleton according to claim 1, wherein,

The stator assembly includes a plurality of stator punching blocks, the plurality of stator punching blocks are sequentially spliced along the circumferential direction of the stator assembly, the number of the motor frame is at least two, and one of the sub-frames is connected to one of the Stator block;

The sub-skeleton and the stator assembly are cut along the radial direction of the stator assembly, and the support part protrudes from an edge extending in the radial direction of the stator punch block.
The motor skeleton according to claim 1, wherein,

The width of the first positioning groove is W, and the maximum wire diameter of the connecting wire is D, satisfying: W≥1.4×D.
The motor frame according to any one of claims 1 to 5, wherein the frame yoke comprises:

a connecting part connected to the skeleton tooth part;

The wire routing part is connected with the connection part and is located between the wire routing part and the skeleton tooth part, and the first positioning groove is arranged in the wire routing part.
The motor skeleton according to claim 6, wherein,

The thickness of the connection part is L3, and the thickness of the wiring part is L4, satisfying: L4≥0.8×L3.
A stator assembly, comprising:

The motor skeleton as claimed in any one of claims 1 to 7;

The stator assembly is connected with the frame of the motor.
A motor, wherein the motor includes:

A stator assembly as claimed in claim 8 and a winding wound on said stator assembly;

The rotor is arranged in the stator assembly.
A compressor, including:

A stator assembly as claimed in claim 8; or

An electric machine as claimed in claim 9.
A refrigeration device, including:

A stator assembly as claimed in claim 8; or

An electric machine as claimed in claim 9; or

A compressor as claimed in claim 10.