Magnetic shoe framework and rotor

Abstract

The invention provides a magnetic shoe framework and a rotor, the magnetic shoe framework comprises a plurality of magnetic shoe grooves and a connecting bridge, one ends of the plurality of magnetic shoe grooves are opposite and abut against each other in pairs, and the other ends of the plurality of magnetic shoe grooves extend along the radial direction; the connecting bridge is connected with the bottom ends of the two adjacent magnetic shoe grooves, the connecting bridge comprises at least two bridge bodies, and the two bridge bodies are fixedly connected with different positions of the bottom ends of the two adjacent magnetic shoe grooves at intervals respectively; during assembly, one side of the iron core abuts against the connecting bridge. Every two adjacent magnetic shoe grooves are fixedly connected through the corresponding connecting bridge composed of at least two bridge bodies, when the magnetic shoe framework is pressed into the iron core, the magnetic shoe grooves are synchronously pressed into the iron core, and the positions of the multiple magnetic shoe grooves are fixed, so that the distances between the magnetic shoes are the same, and therefore the magnetic shoe framework can be pressed into the iron core synchronously. Therefore, the phenomena of magnetic circuit imbalance and dynamic imbalance of the rotor caused by deformation of the iron core and non-uniform position distribution of the magnetic shoes are avoided, and the quality of the rotor is improved.

Description

Technical Field

[0001] The present invention relates to the field of electric motors, and in particular to a magnetic tile frame and a rotor. Background Art

[0002] The rotor is one of the important structural parts inside the motor. As a rotating part in the motor, it is directly involved in the conversion process between electrical energy and mechanical energy. In the traditional plastic-coated rotor structure, due to the interaction between the magnetic tiles, a slight disturbance may cause the tiles to move or pop out of the tile slots, which is not easy to automate. At present, motor manufacturers mostly use workers to insert the rotor core one by one according to the magnetic pole relationship, and then insert the single-piece tiles into the tile slots one by one. This is easy to cause deformation of the core and uneven distribution of the tiles, resulting in unbalanced and dynamic imbalance of the rotor magnetic circuit, thus affecting the quality of the motor. Summary of the invention

[0003] The embodiments of the present invention provide a magnetic tile frame and a rotor to prevent the iron core from deforming and causing the magnetic circuit of the rotor to be unbalanced, thereby improving the quality of the rotor.

[0004] The present invention provides a magnetic tile framework, which comprises:

[0005] A plurality of magnetic shoe grooves, one end of each of which is disposed facing each other and abutting against each other, and the other end of each of which is disposed extending radially;

[0006] A connecting bridge, the connecting bridge connects the bottom ends of two adjacent magnetic tile grooves, the connecting bridge comprises at least two bridge sections, the two bridge sections are respectively and spaced apart and fixedly connected to different positions of the bottom ends of the two adjacent magnetic tile grooves;

[0007] During assembly, one side of the iron core abuts against the connecting bridge.

[0008] In the magnetic tile skeleton provided by the present invention, the connecting bridge includes an upper connecting bridge, a middle connecting bridge and a lower connecting bridge, and the upper connecting bridge, the middle connecting bridge and the lower connecting bridge respectively and fixedly connect the upper part, the middle part and the lower part of the bottom end of two adjacent magnetic tile grooves.

[0009] In the magnetic tile frame provided by the present invention, a positioning column is provided on the side where the magnetic tile groove is arranged opposite to each other, and the middle part of the positioning column is recessed inward from the side close to the central axis to form a groove, and the iron core is provided with a protrusion, which is arranged corresponding to the groove to be positioned and connected with the groove.

[0010] In the magnetic tile skeleton provided by the present invention, adjacent positioning columns are fixedly connected by the lower connecting bridge.

[0011] In the magnetic tile skeleton provided by the present invention, the iron core includes a rotor tooth portion, and limiting portions are provided at both ends of the rotor tooth portion away from the central axis. The limiting portions protrude outwardly from both sides of the rotor tooth portion and are used to limit the magnetic tile grooves.

[0012] In the magnetic tile skeleton provided by the present invention, the rotor tooth portion is further provided with a through hole penetrating through both ends of the rotor tooth portion; wherein during the overmolding, a connecting column is formed in the through hole.

[0013] In the magnetic tile frame provided by the present invention, the magnetic tile groove is a blind hole structure.

[0014] In the magnetic tile frame provided by the present invention, the magnetic tile grooves are of rectangular structure, the short sides of adjacent magnetic tile grooves are mutually abutted in pairs, and the plurality of magnetic tile grooves are evenly distributed around the center.

[0015] In the magnetic tile frame provided by the present invention, the size of the magnetic tile groove is consistent with the size of the magnetic tile.

[0016] The present invention also provides a rotor, comprising:

[0017] A magnetic tile skeleton, wherein the magnetic tile skeleton is any one of the magnetic tile skeletons described above.

[0018] The present application fixes the connection bridge composed of at least two sections of bridge bodies between two adjacent magnetic shoe grooves. When the magnetic shoe skeleton is pressed into the iron core of the rotor, the magnetic shoe grooves can be pressed in synchronously, and the positions of the multiple magnetic shoe grooves are fixed. Therefore, after the magnetic shoe is embedded, the distance between the magnetic shoe is the same, which improves the balance of the magnetic circuit, thereby avoiding deformation of the iron core and uneven distribution of the positions of the magnetic shoe during the installation process, which leads to unbalanced and dynamic imbalance of the rotor magnetic circuit, thereby improving the product quality of the rotor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0020] Figure 1a-Figure 1c It is a structural diagram of the magnetic tile skeleton in various directions in an embodiment of the present invention;

[0021] Figure 2 for Figure 1a The enlarged view of point A in the middle;

[0022] Figure 3 It is a structural diagram of a magnetic tile in an embodiment of the present invention;

[0023] Figure 4a-4b The figure is a step diagram for assembling the magnetic tile and the magnetic tile frame;

[0024] Figure 5 A structural diagram of an iron core in an embodiment of the present invention;

[0025] Figure 6a-6b The figure is a step diagram for assembling the iron core and the magnetic tile frame;

[0026] Figure 7 This is a structural diagram of a plastic-coated skeleton in an embodiment of the present invention;

[0027] Figure 8 A structural diagram of a rotor in an embodiment of the present invention;

[0028] Fig. 9 An exploded view of a rotor in an embodiment of the present invention;

[0029] The reference numerals in the figures are:

[0030] 1. Rotor; 10. Magnetic tile frame; 110. Magnetic tile groove; 111. Positioning column; 1111. Groove; 120. Connecting bridge; 121. Upper connecting bridge; 122. Middle connecting bridge; 123. Lower connecting bridge; 20. Iron core; 210. Protrusion; 220. Rotor tooth; 221. Limiting part; 222. Through hole; 30. Plastic-coated frame; 310. Connecting column; 320. Magnetic tile positioning hole; 40. Magnetic tile. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Now, in conjunction with the accompanying drawings, the preferred embodiments of the present invention are described in detail.

[0032] Refer to Figures 1 to Fig. 9 As shown, it shows an embodiment of the magnetic tile skeleton 10 and the rotor 1 of the present invention. The magnetic tile skeleton 10 includes a plurality of magnetic tile grooves 110 and a connecting bridge 120, one end of the plurality of magnetic tile grooves 110 are facing each other and are arranged in abutment with each other, and the other end is respectively extended in the radial direction; the connecting bridge 120 connects the bottom ends of two adjacent magnetic tile grooves 110, and the connecting bridge 120 includes at least two sections of bridge bodies, and the two sections of bridge bodies are respectively fixedly connected at intervals at different positions of the bottom ends of two adjacent magnetic tile grooves 110; wherein, during assembly, one side of the iron core 20 is in abutment with the connecting bridge 120.

[0033] Specifically, the magnetic tile skeleton 10 in this embodiment is cylindrical, and the magnetic tile skeleton 10 includes a plurality of magnetic tile grooves 110 and a connecting bridge 120, and the connecting bridge 120 is used to connect two adjacent magnetic tile grooves 110; one ends of the plurality of magnetic tile grooves 110 are arranged facing each other, and are arranged in pairs to abut against each other, that is, one ends of the plurality of magnetic tile grooves 110 are arranged to abut against each other around the central axis of the magnetic tile skeleton 10, and one ends of the plurality of magnetic tile grooves 110 are enclosed to form an installation space, and the installation space is used to install the connecting axis of the iron core 20; the other ends of the plurality of magnetic tile grooves 110 are respectively extended along the radial direction of the magnetic tile skeleton 10, and the plurality of magnetic tile grooves 110 are evenly spaced, that is, the plurality of magnetic tile grooves 110 are a radial structure, and the plurality of magnetic tile grooves 110 extend outward from the ends abutting against each other toward the central axis and extend radially outward. It is arranged that a receiving cavity is formed between the multiple magnetic tile grooves 110, and the receiving cavity is used to receive the iron core 20; when the magnetic tile 40 is embedded in the magnetic tile groove 110, the multiple magnetic tiles 40 can be placed in a radial structure and arranged corresponding to the magnetic tile groove 110, which can facilitate the work of embedding the magnetic tile 40 by automated equipment. At this time, the magnetic tiles 40 can be embedded in the magnetic tile groove 110 one by one, or all the magnetic tiles 40 can be directly embedded in the magnetic tile groove 110 at the same time, which is not limited here; at the same time, the magnetic tile 40 embedded in the magnetic tile groove 110 is affected by the static friction force of the inner surface of the magnetic tile groove 110, thereby avoiding the phenomenon that the position of the magnetic tile 40 is offset or popped out due to the interaction of the magnetic field force between the magnetic tiles 40 during the embedding process, thereby avoiding repeated operations and affecting the assembly efficiency.

[0034] Two adjacent magnetic tile grooves 110 are fixedly connected by the connecting bridge 120. The connecting bridge 120 is located at the bottom of the magnetic tile groove 110, that is, the connecting bridge 120 connects the two sides of the end surface of the bottom of the two magnetic tile grooves 110. The connecting bridge 120 is an arc-shaped structure, so that the bottom end surface of the connecting bridge 120 and the magnetic tile groove 110 after being connected forms a circular surface; the magnetic tile skeleton 10 includes a plurality of connecting bridges 120, which are respectively arranged between two adjacent magnetic tile grooves 110; the connecting bridge 120 includes at least two sections The bridge body comprises two sections of the bridge body which are respectively and fixedly connected to different positions of the bottom ends of two adjacent magnetic tile grooves 110 at intervals, thereby fixing and connecting a plurality of the magnetic tile grooves 110; and the connecting bridge 120 forms an end face with the bottom ends of the magnetic tile grooves 110. When the iron core 20 is installed to the magnetic tile skeleton 10, the iron core 20 is installed in the accommodating cavity, and one side of the iron core 20 abuts against the connecting bridge 120. The left and right sides of the iron core 20 are respectively two of the magnetic tile grooves 110, and the connecting bridge 120 has a limiting effect on the iron core 20.

[0035] During assembly, the magnetic tiles 40 are first automatically embedded into the magnetic tile grooves 110 one by one, or all the magnetic tiles 40 are simultaneously embedded into the magnetic tile grooves 110 at the corresponding positions of the magnetic tile grooves 110 of the magnetic tile skeleton 10 using tooling for pre-installation, and then the magnetic tile skeleton 10 is embedded in the iron core 20. After the embedding is completed, one side of the iron core 20 is in contact with the connecting bridge 120.

[0036] In particular, when the automated equipment completes embedding the magnetic tile 40 into the magnetic tile groove 110, the magnetic tile frame 10 is fixed on the equipment tooling, so that the magnetic tile 40 is aligned with the notch of the magnetic tile groove 110, and after distinguishing the magnetic poles in turn, the magnetic tile 40 is pressed into the magnetic tile groove 110 individually or as a whole.

[0037] The present application fixes the connection bridge 120 composed of at least two sections of bridge bodies between two adjacent magnetic tile grooves 110. When the magnetic tile skeleton 10 is pressed into the iron core 20 of the rotor 1, the magnetic tile grooves 110 can be pressed in synchronously, and the positions of the multiple magnetic tile grooves 110 are fixed. Therefore, after the magnetic tiles 40 are embedded, the distances between the magnetic tiles 40 are the same, which improves the balance of the magnetic circuit, thereby avoiding the deformation of the iron core 20 and the uneven distribution of the positions of the magnetic tiles 40 during the installation process, which leads to unbalanced and dynamic imbalance of the magnetic circuit of the rotor 1, thereby improving the product quality of the rotor 1. At the same time, the present application adopts an automated method of inserting the magnetic tiles 40 into the magnetic tile grooves 110, which solves the problems of difficulty in operation, time-consuming and abnormal magnetic poles of the rotor 1 caused by the production method of gradually inserting the magnetic tiles 40 by manpower.

[0038] In a specific embodiment, the connecting bridge 120 includes an upper connecting bridge 121, a middle connecting bridge 122 and a lower connecting bridge 123. The upper connecting bridge 121, the middle connecting bridge 122 and the lower connecting bridge 123 are respectively spaced and fixedly connected to the upper part, the middle part and the lower part of the bottom end of two adjacent magnetic tile grooves 110. Specifically, the connecting bridge 120 includes an upper connecting bridge 121, a middle connecting bridge 122 and a lower connecting bridge 123. The upper connecting bridge 121, the middle connecting bridge 122 and the lower connecting bridge 123 respectively connect the upper, middle and lower parts of the bottom ends of two adjacent magnetic tile grooves 110 at intervals. The upper part refers to the area of ​​the end of the magnetic tile groove 110 away from the central axis, the middle part refers to the area where the center of the bottom end of the magnetic tile groove 110 is located, and the lower part refers to the area of ​​the end of the magnetic tile groove 110 close to the central axis. The upper connecting bridge 121 connects the two sides of the upper part of the bottom ends of the two adjacent magnetic tile grooves 110, the middle connecting bridge 122 connects the two sides of the middle part of the bottom ends of the two adjacent magnetic tile grooves 110, and the lower connecting bridge 123 connects the two sides of the lower part of the bottom ends of the two adjacent magnetic tile grooves 110, thereby fixing the multiple magnetic tile grooves 110, improving the fixing strength of the magnetic tile grooves 110, and improving the structural stability of the magnetic tile skeleton 10.

[0039] In one embodiment, referring to Figures 1a to 6bAs shown, a positioning column 111 is provided on one side of the magnetic groove 110 facing each other, and the middle part of the positioning column 111 is recessed inward from the side close to the central axis to form a groove 1111. The iron core 20 is provided with a protrusion 210, and the protrusion 210 is arranged corresponding to the groove 1111 to be positioned and connected with the groove 1111. Specifically, a positioning column 111 is provided on one side of the magnetic groove 110 that is arranged facing each other, and the positioning column 111 is extended along the height direction of the magnetic groove 110, that is, the positioning column 111 is located on the side of the magnetic groove 110 close to the central axis, and a groove 1111 is also provided in the middle of the positioning column 111, and the groove 1111 is formed by the inward depression of the side of the positioning column 111 close to the central axis. The cross-section of the positioning column 111 is saddle-shaped, and each side of the magnetic groove 110 close to the central axis is provided with the positioning column 111; the iron core 20 is also provided with the protrusion 210 correspondingly, and the protrusion 210 and the groove 1111 is arranged correspondingly, and the protrusion 210 is extended along the height direction of the iron core 20, so the iron core 20 is provided with a plurality of the protrusions 210, and the plurality of the protrusions 210 are evenly arranged along the circumferential intervals of the iron core 20, and the protrusions 210 are slidably connected with the grooves 1111, so when the magnetic tile skeleton 10 is embedded in the iron core 20, the grooves 1111 are aligned with the protrusions 210, and the magnetic tile skeleton 10 is gradually embedded into the iron core 20 along the height direction of the protrusions 210, and the protrusions 210 and the grooves 1111 are positioned and assembled, so that the assembly operation is simple and the embedding direction is accurate, thereby improving the assembly efficiency.

[0040] In this embodiment, a saddle-shaped positioning column 111 is designed inside each magnetic tile groove 110 , and the groove 1111 in the middle part of the positioning column 111 cooperates with the protrusion 210 of the iron core 20 , so that the magnetic tile skeleton 10 can be accurately embedded in the iron core 20 .

[0041] In a specific embodiment, refer to Figure 1c and Figure 2As shown, the adjacent positioning posts 111 are fixedly connected by the lower connecting bridge 123. Specifically, the positioning posts 111 are extended along the height direction of the magnetic tile groove 110, that is, extending from the top of the magnetic tile groove 110 to the bottom of the magnetic tile groove 110, the bottom ends of the adjacent magnetic tile grooves 110 are connected and fixed by the connecting bridge 120, and the adjacent positioning posts 111 are fixedly connected by the lower connecting bridge 123, and the upper connecting bridge 121 and the lower connecting bridge 123 are fixedly connected to the upper and middle parts of the adjacent magnetic tile grooves 110, thereby ensuring that the connecting bridge 120 fixes the upper, middle and lower parts of the bottom ends of the adjacent magnetic tile grooves 110 and the adjacent positioning posts 111, so that the overall structure of the magnetic tile skeleton 10 has a certain strength.

[0042] In one embodiment, referring to Figures 5 to 6b As shown, the iron core 20 includes a rotor 1 tooth portion, and the two ends of the rotor 1 tooth portion away from the central axis are provided with a limiting portion 221, and the limiting portion 221 protrudes outward from the two sides of the rotor 1 tooth portion, and is used to limit the magnetic tile groove 110. Specifically, the iron core 20 is formed by stacking punching sheets, and the iron core 20 includes a rotor 1 tooth portion and a connecting shaft, and the connecting shaft is located in the middle to connect a plurality of the rotor 1 teeth portions, and the punching sheets are punched out with fan-shaped rotor 1 teeth portions, and the plurality of rotor 1 teeth portions are arranged at intervals along the radial direction of the connecting shaft, and the space between the two fan-shaped rotor 1 teeth portions constitutes a magnetic tile groove 110 hole, and the magnetic tile groove 110 of the magnetic tile skeleton 10 is embedded in the magnetic tile groove 110 hole, and the protrusion 210 is located at the position of the magnetic tile groove 110 hole close to the connecting shaft, and is used for positioning and assembling with the groove 1111 in the middle of the positioning column 111 with a saddle-shaped cross section.

[0043] The tooth portion of the rotor 1 is installed between two adjacent magnetic tile grooves 110. A limiting portion 221 is provided on the side of the tooth portion of the rotor 1 away from the central axis of the magnetic tile skeleton 10. The limiting portion 221 is located on both sides of the tooth portion of the rotor 1 and is formed by extending outward from two ends of one side of the tooth portion of the rotor 1. The limiting portion 221 is extended along the height direction of the tooth portion of the rotor 1 and protrudes outward from both sides of the tooth portion of the rotor 1. When the magnetic tile skeleton 10 is embedded in the iron core 20, the two ends of the side of the magnetic tile groove 110 away from the central axis are respectively abutted against the limiting portion 221 for limiting, so as to avoid deviation in the embedding direction, and further fix the positions of the magnetic tile groove 110 and the iron core 20, so as to avoid changes in the position of the magnetic tile groove 110 and deformation of the iron core 20, and further ensure the magnetic circuit balance of the rotor 1.

[0044] In a specific embodiment, refer to Figures 5 to 6bAs shown, the tooth portion of the rotor 1 is also provided with a through hole 222 that passes through the two ends of the tooth portion of the rotor 1; wherein during the overmolding, a connecting column 310 is formed in the through hole 222. Specifically, the tooth portion of the rotor 1 is also provided with a through hole 222, the through hole 222 passes through the top and bottom ends of the tooth portion of the rotor 1, and the through hole 222 is located at the center of the tooth portion of the rotor 1, so that after the magnetic tile skeleton 10 is embedded in the iron core 20, when the magnetic tile skeleton 10, the magnetic tile 40 and the iron core 20 are overmolded, a connecting column 310 is formed in the through hole 222, the connecting column 310 passes through the through hole 222 so that the two ends of the connecting column 310 are located on both sides of the tooth portion of the rotor 1, and the connecting column 310 connects the components at the two ends of the tooth portion of the rotor 1 after overmolding, thereby increasing the connection between the components and improving the structural strength of the rotor 1 after overmolding.

[0045] More specifically, the magnetic tile skeleton 10 is customized according to the height of the rotor 1. When the magnetic tile skeleton 10 is embedded in the iron core 20, several magnetic tiles 40 on the side without the connecting bridge 120 are embedded at the same time by means of tooling positioning, thereby not easily causing deformation of the iron core 20. Since the magnetic tile skeleton 10 is customized according to the height of the rotor 1, after the magnetic tile skeleton 10 is fully embedded, the heights of the exposed magnetic tiles 40 at both ends of the rotor 1 are consistent.

[0046] In a specific embodiment, refer to Figures 1a to 4b As shown, the magnetic tile groove 110 is a blind hole structure. Specifically, the magnetic tile groove 110 is set as a blind hole structure with an unsealed end face, that is, the top of the magnetic tile groove 110 is an exposed structure, and the rest of the surrounding end faces and the lower end are in a closed connection state. The magnetic tile 40 is embedded from the top of the magnetic tile groove 110 toward the lower end, so that the bottom end of the magnetic tile 40 is abutted against the bottom end of the magnetic tile groove 110, and the surrounding of the magnetic tile 40 is wrapped by the magnetic tile groove 110, and the top of the magnetic tile 40 is exposed to the outside, that is, the bottom end and the surrounding end faces of the magnetic tile 40 are wrapped, and only the top of the magnetic tile 40 is exposed to the outside, so that one end face of the rotor 1 is fully sealed, that is, the assembled magnetic tile skeleton 10 and the iron core 20 are The bottom end is in a fully closed state, which improves the structural stability of the rotor 1; during overmolding, a positioning piece is fixedly provided on one side of the bottom end of the magnetic tile groove 110, and a positioning piece is fixedly provided on the top of the magnetic tile 40. The positioning piece can be a pin, and the positioning piece is a structural part of the overmolding mold, so that the magnetic tile 40 is fixed by the positioning piece, and the magnetic tile 40 is fixed in the magnetic tile groove 110, ensuring that the magnetic tile 40 does not shift under the action of injection molding pressure, thereby ensuring the relative position of the magnetic tile 40 and the iron core 20, and avoiding the problem of motor commutation loss and increased vibration caused by inconsistent Hall sensing distances of each piece of the magnetic tile 40.

[0047] In one embodiment, referring to Figures 1a to 4b As shown, the magnetic tile groove 110 is a rectangular structure, the short sides of adjacent magnetic tile grooves 110 are mutually abutted, and multiple magnetic tile grooves 110 are evenly distributed around the center. Specifically, the magnetic tile groove 110 is set as a rectangular structure, so as to facilitate the assembly of the magnetic tile 40, the short sides of the magnetic tile groove 110 are mutually abutted, and multiple magnetic tile grooves 110 are evenly distributed around the center, so that after the magnetic tile 40 is embedded, the distance between the magnetic tiles 40 is the same, which has a great effect on improving the balance of the magnetic circuit, and the structural stability of the magnetic tile skeleton 10 is higher.

[0048] In a specific embodiment, refer to Figures 1a to 4b As shown, the size of the magnetic tile groove 110 is consistent with the size of the magnetic tile 40. Specifically, the size of the magnetic tile groove 110 is customized according to the size of the magnetic tile 40, and the size refers to the length, width and height of the magnetic tile groove 110 and the magnetic tile 40, so that the magnetic tile 40 can be completely embedded in the magnetic tile groove 110, and the magnetic tile 40 can be wrapped in the magnetic tile groove 110. The embedded magnetic tile 40 is affected by the static friction force of the inner surface of the magnetic tile groove 110, which can prevent the embedded magnetic tile 40 from being offset or ejected, so as to improve the installation efficiency of the magnetic tile 40 and facilitate the work of embedding the magnetic tile 40 by the automated equipment.

[0049] In one embodiment, the magnetic tile frame 10 is an integrated structure. Specifically, the magnetic tile frame 10 is set as an integrated structure, that is, the magnetic tile groove 110 and the connecting bridge 120 of the magnetic tile frame 10 are an integrated structure, thereby enhancing the structural strength of the magnetic tile frame 10, improving the service life of the magnetic tile frame 10, and reducing production costs.

[0050] Reference Figures 8 to 9 As shown, this embodiment also provides a rotor 1, which includes a magnetic tile skeleton 10. The magnetic tile skeleton 10 can adopt any magnetic tile skeleton 10 provided by the present invention. Since the previous specification has already made a detailed introduction to the specific structure and working principle of the magnetic tile skeleton 10, it will not be repeated here for the sake of brevity of the specification.

[0051] Specifically, the rotor 1 includes a magnetic tile skeleton 10, an iron core 20 and a plastic-coated skeleton 30. During assembly, the magnetic tiles 40 are first embedded in the magnetic tile skeleton 10, and then the magnetic tile skeleton 10 with the magnetic tiles 40 is embedded in the iron core 20. Then, the iron core 20, the magnetic tile skeleton 10 and the magnetic tiles 40 are plastic-coated to form the plastic-coated skeleton 30. The plastic-coated skeleton 30 is used to fix the magnetic tile skeleton 10, the iron core 20 and the magnetic tiles 40.

[0052] More specifically, refer to Figure 7As shown, during the overmolding, positioning members are provided at the bottom of the magnetic tile groove 110 and the top of the magnetic tile 40 to avoid the position deviation of the magnetic tile 40. Therefore, after the overmolding is completed, magnetic tile 40 positioning holes 320 are provided on both end faces of the overmolding skeleton 30. One side of the magnetic tile 40 positioning hole 320 located at the bottom of the overmolding skeleton 30 close to the magnetic tile groove 110 is connected to the bottom of the magnetic tile groove 110, and the magnetic tile 40 positioning hole 320 located at the top of the overmolding skeleton 30 close to the magnetic tile 40 is connected to the top of the magnetic tile 40. At this time, the relative position of the magnetic tile 40 and the iron core 20 can be ensured, avoiding the problem of motor commutation loss caused by inconsistent Hall induction distances of each magnetic tile 40, and at the same time, it can also be achieved that the magnetic tile 40 is not exposed on one end face of the rotor 1.

[0053] The rotor 1 in this embodiment adopts the magnetic tile skeleton 10 provided by the present invention. The structures of the magnetic tile grooves 110 and the connecting bridges 120 of the magnetic tile skeleton 10 are fixed. After the magnetic tiles 40 are embedded in the magnetic tile grooves 110, when the magnetic tile skeleton 10 is embedded in the iron core 20, the multiple magnetic tile grooves 110 are simultaneously pressed into the iron core 20 to avoid deformation of the iron core 20 and uneven distribution of the positions of the magnetic tiles 40, thereby ensuring the magnetic circuit balance and dynamic balance of the rotor 1 and improving the quality of the rotor 1.

[0054] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A magnetic tile frame, characterized in that: include: A plurality of magnetic shoe grooves, one end of each of which is disposed facing each other and abutting against each other, and the other end of each of which is disposed extending radially; A connecting bridge, the connecting bridge connects the bottom ends of two adjacent magnetic tile grooves, the connecting bridge comprises at least two bridge sections, the two bridge sections are respectively and spaced apart and fixedly connected to different positions of the bottom ends of the two adjacent magnetic tile grooves; During assembly, one side of the iron core abuts against the connecting bridge.

2. The magnetic tile frame according to claim 1, characterized in that: The connecting bridge comprises an upper connecting bridge, a middle connecting bridge and a lower connecting bridge, and the upper connecting bridge, the middle connecting bridge and the lower connecting bridge respectively and fixedly connect the upper part, the middle part and the lower part of the bottom ends of two adjacent magnetic tile grooves at intervals.

3. The magnetic tile skeleton according to claim 2, characterized in that: A positioning column is provided on one side of the magnetic shoe groove facing each other, and the middle part of the positioning column is recessed inward from the side close to the central axis to form a groove. The iron core is provided with a protrusion, and the protrusion is arranged corresponding to the groove to be positioned and connected with the groove.

4. The magnetic tile skeleton according to claim 3, characterized in that: Adjacent positioning columns are fixedly connected by the lower connecting bridge.

5. The magnetic tile frame according to claim 1, characterized in that: The iron core comprises a rotor tooth portion, and limiting portions are provided at two ends of a side of the rotor tooth portion away from the central axis. The limiting portions protrude outwardly from two sides of the rotor tooth portion and are used to limit the magnetic shoe grooves.

6. The magnetic tile frame according to claim 5, characterized in that: The rotor tooth portion is also provided with a through hole penetrating through both ends of the rotor tooth portion; wherein during the overmolding, a connecting column is formed in the through hole.

7. The magnetic tile skeleton according to any one of claims 1 to 6, characterized in that: The magnetic tile groove is a blind hole structure.

8. The magnetic tile frame according to claim 1, characterized in that: The magnetic tile grooves are of rectangular structure, the short sides of adjacent magnetic tile grooves are mutually abutted in pairs, and a plurality of magnetic tile grooves are evenly distributed around the center.

9. The magnetic tile frame according to claim 1, characterized in that: The size of the magnetic tile groove is consistent with the size of the magnetic tile.

10. A rotor, characterized in that: include: A magnetic tile skeleton, wherein the magnetic tile skeleton is the magnetic tile skeleton as described in any one of claims 1-9.

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