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Rotor die-casting sheath, rotor die-casting structure and rotor die-casting method

A technology of sheath and rotor, which is applied in the fields of rotor die-casting structure, rotor die-casting, and rotor die-casting sheath, which can solve the problems of increasing production process and increasing production cost, so as to simplify the process of finishing turning, save processing cost, and has wide application Effect

Active Publication Date: 2018-08-10
GREE ELECTRIC APPLIANCES INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this processing method can ensure a certain air gap between the stator and the rotor, it increases the production process and increases the production cost

Method used

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  • Rotor die-casting sheath, rotor die-casting structure and rotor die-casting method
  • Rotor die-casting sheath, rotor die-casting structure and rotor die-casting method
  • Rotor die-casting sheath, rotor die-casting structure and rotor die-casting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] This preferred embodiment discloses a rotor die-casting sheath, which is a hollow cylindrical structure that can be opened and closed; when the sheath is closed, it can wrap the rotor core placed in the cylindrical structure, and when the sheath is opened, it can allow the rotor Take out the iron core.

[0034] Using the sheath to wrap the rotor iron core and then die-cast it can ensure that the outer circle of the rotor iron core is not deformed during die-casting. The processing cost of the rotor core, especially the thin-walled rotor core, is lower and the process is simpler.

[0035] like Figure 4 As shown, the sheath 1 includes a first half-tube 11 and a second half-tube 12 with an arc-shaped cross section, and the first half-tube 11 and the second half-tube 12 form a complete hollow cylindrical structure after fastening.

[0036] Connecting components are respectively arranged at the borders of both sides of the first half cylinder 11 and the second half cylind...

Embodiment 2

[0045] This preferred embodiment discloses a rotor die-casting sheath, and the method of using the sheath is the same as that of the first preferred embodiment. The difference is that: the sheath includes a plurality of strip structures with arc-shaped cross-sections, and all the strip structures are sequentially threaded on the fixed chain or fixed on the flexible outer package. After the fixed chain or the flexible outer package is enclosed, all The strip structure can form a hollow cylindrical structure.

[0046] Spread the sheath flat before die-casting, place the rotor core on the sheath, gather the fixed chain or the flexible outer package, and wrap the sheath on the outside of the rotor core, tie the two ends of the fixed chain together or put the flexible outer package The binding is tight, the rotor core and the sheath are die-cast by putting into the die-cast guide sleeve.

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PUM

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Abstract

The invention discloses a rotor die-casting sheath, a rotor die-casting structure and a rotor die-casting method, which belong to the field of rotor core processing methods and are designed to solve the problems in the existing processing method such as high cost. The rotor die-casting sheath is of a hollow tubular structure which can be opened and closed. The sheath can wrap a rotor core placed in the tubular structure when closed and allow the rotor core to be taken out when opened. The rotor die-casting structure comprises a rotor core and a die-casting guide sleeve, and further comprises the sheath, wherein the sheath is arranged outside the rotor core and disposed inside the die-casting guide sleeve. The rotor die-casting method comprises the steps of sleeving the rotor core with the sheath and putting the rotor core and the sheath in the die-casting guide sleeve for die casting. According to the rotor die-casting sheath, the rotor die-casting structure and the rotor die-casting method of the invention, the rotor core is coated with the sheath, the sheath fastens the outer wall of the rotor core when the slot ball of the rotor core expands in die casting, and no subsequent finish turning process is needed.

Description

technical field [0001] The invention relates to the field of rotor core processing methods, in particular to a rotor die-casting sheath, a rotor die-casting structure including the sheath, and a rotor die-casting method using the sheath. Background technique [0002] The rotors of fixed-speed air-conditioning compressor motors are mostly squirrel-cage rotors, and the rotors are mostly closed-slot structures (there is a core thickness of about 0.4mm between the squirrel-cage slot of the rotor core and the outer circle of the rotor core, which can also be called is the rotor slot wall thickness L, such as figure 1 and figure 2 shown), to ensure that there will be no aluminum leakage when the rotor is cast in aluminum, and that there will be no deformation due to high die-casting pressure during die-casting of the squirrel cage groove, and that the roundness of the outer circle of the rotor after die-casting will not be affected. [0003] Thin rotor slot walls can improve mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K15/02
Inventor 刘贤义范少稳
Owner GREE ELECTRIC APPLIANCES INC