Rotor filling and sealing mold

By designing a potting mold for permanent magnet motor rotor, the problem of uneven design of the rotor magnet is solved, and the bonding strength and appearance are achieved, meeting the needs of high-tension carbon fiber wrapping.

CN222763741UActive Publication Date: 2025-04-15JIANGXI JIANGTE HIGH-TECH EQUIP CO LTD
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Patent Information

Application Number
CN202421415187.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-20
Publication Date
2025-04-15
Estimated Expiration
2034-06-20

AI Technical Summary

Technical Problem

The design of permanent magnet motor surface-mounted rotor magnet has gaps, uneven high and low points of the magnet, and uneven overall appearance size, which cannot meet the needs of large tension carbon fiber wrapping of the rotor.

Method used

A rotor potting mold is adopted, including potting outer mold, potting outer mold bottom plate and rotor components. Through the fixed connection between the potting outer mold and the bottom plate, the setting of the glue injection port and the use of latch holes, the tight bonding between the magnetic steel and the rotor core and the flatness of the overall appearance are ensured.

Benefits of technology

The bonding strength between the rotor core and magnetic steel is improved, the rotor size and roundness are flat, and the subsequent rotor high tension carbon fiber wrapping is met.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of rotor processing, in particular to a rotor filling and sealing mold. Comprising a potting outer mold 3, a potting outer mold bottom plate and a rotor part, the potting outer mold is fixedly connected with the potting outer mold bottom plate, a glue injection opening is formed in one side of the potting outer mold bottom plate, and glue is injected into the rotor part through the glue injection opening. A plurality of plug pin holes are formed in the end, attached to the filling and sealing outer mold bottom plate, of the filling and sealing outer mold in a circular array mode and fixed through bolts. The rotor component comprises a rotor core and magnetic steel. The bonding strength of the rotor iron core and the magnetic steel is improved, and the surface of the rotor magnetic steel is effectively prevented from being damaged easily; the overall appearance size and roundness of the rotor are improved; 3, the follow-up large-tension carbon fiber winding of the rotor is ensured.
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Description

Technical Field

[0001] The utility model relates to the field of rotor processing, in particular to a rotor potting mold. Background Art

[0002] The surface-mounted rotor magnets of permanent magnet motors are generally designed to be semi-arc or bread-shaped. There is a gap between the adjacent N and S poles when the magnets are assembled and pasted to the rotor core, the high and low points of the magnets are uneven, and the overall shape and dimensions are uneven, which cannot meet the requirements of high-tension carbon fiber winding of the rotor. Utility Model Content

[0003] The utility model aims to overcome the deficiencies of the prior art, meet practical needs, and provide a rotor potting mold.

[0004] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: a rotor potting mold, including a potting outer mold 3, a potting outer mold bottom plate 4 and a rotor component 1, the potting outer mold 3 and the potting outer mold bottom plate 4 are fixedly connected, and a glue injection port 5 is provided on one side of the potting outer mold bottom plate 4, and the glue injection port injects glue into the rotor component 1.

[0005] The circular array of the mating ends of the potting outer mold 3 and the potting outer mold bottom plate 4 has multiple pin holes and is fixed by bolts.

[0006] The rotor component 1 includes a rotor core 6 and a magnetic steel 7 .

[0007] The array of magnetic steels 7 is provided with 12 pieces, and the gaps between each magnetic steel 7 are filled with filling glue 8 .

[0008] The beneficial effects of the utility model are:

[0009] 1. Improve the bonding strength between the rotor core and the magnetic steel, and effectively protect the rotor magnetic steel surface from damage; 2. Improve the overall size and roundness of the rotor; 3. Ensure the subsequent high-tension carbon fiber winding of the rotor. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The utility model is further described below in conjunction with the accompanying drawings and implementation cases.

[0011] Figure 1 It is a schematic diagram of the utility model;

[0012] Figure 2 It is a schematic diagram of the rotor component of the utility model. DETAILED DESCRIPTION

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0014] See also Figure 1-2 .

[0015] The utility model discloses a rotor potting mold, comprising a potting outer mold 3, a potting outer mold bottom plate 4 and a rotor component 1. The potting outer mold 3 and the potting outer mold bottom plate 4 are fixedly connected, and a glue injection port 5 is arranged on one side of the potting outer mold bottom plate 4, and the glue injection port is used to inject glue into the rotor component 1.

[0016] The circular array of the mating ends of the potting outer mold 3 and the potting outer mold bottom plate 4 has multiple pin holes and is fixed by bolts.

[0017] The rotor component 1 includes a rotor core 6 and a magnetic steel 7 .

[0018] The array of magnetic steels 7 is provided with 12 pieces, and the gaps between each magnetic steel 7 are filled with filling glue 8 .

[0019] After the rotor is assembled into the mold, it is placed in an oven as a whole and heated at 110 degrees for 2 hours. The potting equipment runs automatically. After the rotor is heated, it is placed in the vacuum box of the vacuum potting equipment. The equipment's glue injection port is aligned with the mold's 5 glue injection grooves. Full vacuum pouring is performed. First, estimate the product pouring weight, pour 50% of the estimated amount, vacuum 5mPa, and hold the pressure for 10 minutes, then pour 30%, vacuum 5mPa, hold the pressure for 5 minutes, and finally pour 100%, then heat and cure at 85 degrees for 3 hours and 120 degrees for 2 hours. Finally, the mold is demolded and the rotor is processed by cylindrical grinding.

[0020] The above description is only an embodiment of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent transformation made by using the contents of the specification and drawings of the present utility model or directly or indirectly applied in the relevant technical field is also included in the patent protection scope of the present utility model.

Claims

1. A rotor potting mold, characterized in that: It comprises an encapsulation outer mold (3), an encapsulation outer mold bottom plate (4) and a rotor component (1); the encapsulation outer mold (3) and the encapsulation outer mold bottom plate (4) are fixedly connected; a glue injection port (5) is provided on one side of the encapsulation outer mold bottom plate (4) for injecting glue into the rotor component (1).

2. A rotor potting mold according to claim 1, characterized in that: The sealing outer mold (3) and the sealing outer mold bottom plate (4) have a plurality of pin holes in a circular array at the fitting end and are fixed by bolts.

3. The rotor potting mold according to claim 1, characterized in that: The rotor component (1) comprises a rotor core (6) and magnetic steel (7).

4. A rotor potting mold according to claim 3, characterized in that: The array of magnetic steels (7) is provided with 12 pieces, and the gaps between each magnetic steel (7) are filled with filling glue (8).