A large hole magnetic steel surface-mounted rotor structure

Abstract

The utility model discloses a big through -hole magnetic steel surface -paste type rotor structure, including rotor core, be in the multiple slot hole of the circumferential distribution of rotor core and even distribution of magnetic steel slot at rotor core outside, be equipped with the limiting convex edge for fixing magnetic steel between adjacent magnetic steel slot, the cross section of every magnetic steel slot is rectangular, and the magnetic steel slot is used for installing magnetic steel. The utility model has the advantages of relatively more convenient advantage of processing with the mode of surface -paste magnetic steel of inserting.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a surface-mounted rotor structure with large through-hole magnets. Background Technology

[0002] An electric motor is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. An electric motor consists of a main shaft, a stator assembly, and a rotor assembly.

[0003] Existing rotor assembly magnet mounting structures include embedded, external, and surface-mount types. Embedded types involve directly creating corresponding embedding slots on the rotor laminations and then embedding the magnets. However, this method does not have a high utilization rate of the magnets and cannot meet high-standard requirements. The surface-mount method involves attaching magnets to the outer circumference of the rotor core using adhesive. However, to ensure that the magnets effectively cover the outer circumference of the rotor core, this method requires a large number of magnets, and each magnet must be individually attached, making processing inconvenient. Utility Model Content

[0004] The purpose of this invention is to provide a surface-mounted rotor structure with large through-hole magnets. This invention has the advantage of using an insert-mounted method for the magnets, making processing relatively easier.

[0005] The technical solution of this utility model: A large-hole magnet surface-mount rotor structure includes a rotor core, a plurality of slots arranged circumferentially on the rotor core, and magnet slots evenly distributed on the outside of the rotor core; a limiting protrusion for fixing the magnet is provided between adjacent magnet slots; the cross-section of each magnet slot is rectangular, and the magnet slot is used to install the magnet.

[0006] In the aforementioned large-hole magnet surface-mounted rotor structure, each of the aforementioned limiting protrusions is a trapezoidal shape with a larger outer diameter and a smaller inner diameter.

[0007] In the aforementioned large-hole magnet surface-mounted rotor structure, the magnet slots are provided with 2n, where the number n corresponds to the actual specifications.

[0008] In the aforementioned large-hole magnet surface-mounted rotor structure, the two ends of the limiting protrusion are inclined.

[0009] In the aforementioned large-hole magnet surface-mounted rotor structure, the two ends of the inner side of the magnet slot are arc-shaped.

[0010] Compared with the prior art, this application directly processes multiple evenly divided magnet slots on the outer surface of the rotor core, and the excess protrusions between adjacent magnet slots serve as limiting protrusions for fixing magnets, thereby enabling the magnet sheets to be directly and evenly inserted into the magnet slots for fixing and achieving surface mounting. Using this application, there is no need to embed magnets, and the utilization rate of magnets is relatively greater; the installation is fixed by using magnet slots, which eliminates the need to apply glue to each piece, making the installation more convenient; The structure of this application is simple and ingenious, easy to process, and conducive to mass production.

[0011] Therefore, this utility model has the advantage of using an insertion method to surface-mount magnets, which makes processing relatively more convenient. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 This is a top view of the present invention; Figure 4 yes Figure 3 Enlarged view of section B in the middle.

[0013] The markings in the attached diagram are: 1-rotor core, 2-magnet slot, 3-limiting ridge, 4-slot hole. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0015] Example. A surface-mounted rotor structure with a large through-hole magnet, such as... Figure 1-4 As shown, it includes a rotor core 1, a plurality of slots 4 arranged in a circular pattern on the rotor core 1, and magnet slots 2 evenly distributed on the outside of the rotor core 1; a limiting protrusion 3 for fixing magnets is provided between adjacent magnet slots 2; the cross-section of each magnet slot 2 is rectangular, and the magnet slot 2 is used to install magnets; The magnetic steel groove 2 is formed by milling.

[0016] Each of the aforementioned limiting protrusions 3 is a trapezoidal shape with a larger outer edge and a smaller inner edge.

[0017] The magnetic steel groove 2 is provided with 56 sections, and the magnetic steel groove 2 corresponds to the actual specifications.

[0018] The limiting protrusion 3 is inclined at both ends.

[0019] The inner ends of the magnetic steel groove 2 are arc-shaped.

Claims

1. A large via magnetic steel surface-mounted rotor structure, characterized in that: It includes a rotor core (1), a plurality of slots (4) arranged in a circular pattern on the rotor core (1), and magnet slots (2) evenly distributed on the outside of the rotor core (1); a limiting protrusion (3) for fixing magnets is provided between adjacent magnet slots (2); the cross-section of each magnet slot (2) is rectangular, and the magnet slot (2) is used to install magnets.

2. The surface-mounted rotor structure with large through-hole magnets according to claim 1, characterized in that: Each of the aforementioned limiting protrusions (3) is a trapezoidal shape with a larger outer edge and a smaller inner edge.

3. The surface-mounted rotor structure with large through-hole magnets according to claim 1, characterized in that: The magnetic steel groove (2) is provided with 2n, and the number of n corresponds to the actual specifications.

4. The surface-mounted rotor structure with large through-hole magnets according to claim 1, characterized in that: The limiting protrusion (3) is inclined at both ends.

5. The surface-mounted rotor structure with large through-hole magnets according to claim 1, characterized in that: The inner ends of the magnetic steel groove (2) are arc-shaped.

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