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Variable-frequency motor and fan for refrigerator

A frequency conversion motor and freezer technology, which is used in machines/engines, synchronous motors with static armatures and rotating magnets, and electromechanical devices, etc., can solve problems such as poor heat dissipation, small rotational inertia, and low efficiency, and achieve smooth rotation Large rotor inertia and good heat dissipation

Inactive Publication Date: 2020-12-01
HANGZHOU KANGBEI MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The DC brushless frequency conversion motor adopts the inner rotor structure, which has small moment of inertia, poor heat dissipation and low efficiency

Method used

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  • Variable-frequency motor and fan for refrigerator
  • Variable-frequency motor and fan for refrigerator
  • Variable-frequency motor and fan for refrigerator

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Experimental program
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Effect test

Embodiment Construction

[0053] Embodiments of the present invention will be described in detail below.

[0054] see Figure 1 to Figure 6 As shown, a frequency conversion motor for a refrigerator provided by the present invention includes a housing 10, a main shaft 20, a circuit board 38 installed in the housing 10, a stator seat 40, a stator 50, a magnetic ring 61, a rotor housing 62, and an elastic washer 31. Bakelite gasket 32, bearing seat 70, stator seat 40 includes cylinder 41, base plate seat 42, the rear end of cylinder body 41 is connected to the front side of base plate seat 42, stator base 40 is fixed to housing 10 through base plate seat 42 connection, the bearing seat 70 is installed in the cylinder 41, the stator 50 includes an iron core 51 and a three-phase winding coil 52, the iron core 51 of the stator 50 adopts a twelve-slot structure, and the three-phase winding coil 52 is installed in the cylinder through the iron core 51 41, the magnetic ring 61 is installed in the rotor shell 6...

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PUM

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Abstract

The invention discloses a variable frequency motor for a refrigerator. The variable frequency motor comprises a shell, a main shaft, a circuit board, a stator seat, a stator, a magnetic ring, a rotorshell, an elastic washer, a bakelite gasket and a bearing seat, wherein the circuit board, the stator seat, the stator, the magnetic ring, the rotor shell, the elastic washer, the bakelite gasket andthe bearing seat are arranged in the shell, the stator seat comprises a cylinder body and a bottom plate seat, the stator comprises an iron core and a three-phase winding coil, the three-phase windingcoil is arranged on the outer side surface of the cylinder body through the iron core, and the magnetic ring is arranged in the rotor shell and is sleeved on the periphery of the stator. According tothe invention, the variable-frequency motor for the refrigerator adopts a low-voltage direct-current power supply to drive the motor to rotate, so that stepless speed regulation control is realized;and the motor adopts an outer rotor structure, the rotor inertia of the outer rotor structure is large, the power density is high, and the heat dissipation is good, so that the motor is more energy-saving. The invention further discloses a fan adopting the variable frequency motor for the refrigerator, wherein a plurality of flow guide grooves are formed in the windward sides of fan blades, so that noise can be effectively lowered, and the resistance of fan starting to the fan blades of the fan is reduced so as to effectively reduce the load of the motor and improve the wind speed under the same power.

Description

technical field [0001] The invention relates to the technical field of frequency conversion motors and fans, in particular to a frequency conversion motor and fan used in refrigerators. Background technique [0002] In the 21st century, the advancement of motor control technology and the demand for environmental protection have prompted the gradual maturity of permanent magnet brushless DC motor control technology. Compared with brushed motors, brushless motors have more extensive applications and can meet the needs of more manipulative and complex products. , Widely used in home appliances and industrial control, characterized by high efficiency and excellent control performance. The freezer is one of the most household appliances. Because it can blow cold air to the freezer and refrigerator for refrigeration, people can store and keep fresh food for a long time, so it has been favored by people. The motor used for the traditional freezer fan is SP Electric motors and PSC ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K21/22H02K5/173H02K11/33H02K5/10F04D25/08F04D29/38F04D29/34
CPCF04D25/062F04D25/08F04D29/34F04D29/384F04D29/388H02K5/10H02K5/1732H02K21/22H02K11/33
Inventor 钱志存许海波陈晶涛陈丽涛
Owner HANGZHOU KANGBEI MOTOR
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