Permanent magnet dc motor and food processor

Abstract

A permanent magnet DC motor includes a stator assembly and a rotor assembly, the surface of the commutator is provided with a wire embedding groove, the winding is wound on the rotor core and then wound into the insertion groove of the commutating piece, so that the winding can be fixed in the insertion groove, which ensures that the windings fixed on the two adjacent commutating plates cannot contact each other, and the circumferential width of the thread embedding groove is d, the circumferential width of the commutating piece is D, and d satisfies: 0 (d <= D*1 / 3, ensure that there is sufficient width in the slot to accommodate a winding wide enough to accommodate the winding, As that slot and windings are enlarge, The invention ensures that the permanent magnet DC motor provided by theinvention has larger power, and ensures that when more food needs to be processed in the cooking machine, the food can be processed by high-speed cutting and polishing with sufficient rotational speed, and the taste of the food is improved, and the market competitiveness of the product is improved.

Description

technical field [0001] The invention relates to the field of household appliances, and more specifically, to a permanent magnet DC motor and a food processor. Background technique [0002] With the continuous improvement of people's living standards, people also put forward more and more demands on food processing methods. Food processors (such as cooking machines, soybean milk machines, wall breaking machines or juice extractors) have the diversity of processed foods. , can meet the different needs of different users, and is gradually favored by consumers; and one of the important factors that affect the processing of food by the cooking machine is the load speed of the internal motor, so it is necessary to increase the load speed of the motor by increasing the power of the motor. In order to ensure the grinding effect of the food; in the cooking machine in the related art, due to the use of the hook commutator, when the power is increased by providing the wire diameter of ...

AI Technical Summary

Problems solved by technology

[0002] With the continuous improvement of people's living standards, people also put forward more and more demands on food processing methods. Food processors (such as cooking machines, soybean milk machines, wall breaking machines or juice extractors) have the diversity of processed foods. , can meet the different needs of different users, and is gradually favored by consumers; and one of the important factors that affect the processing of food by the cooking machine is the load speed of the internal motor, so it is necessary to increase the load speed of the motor by increasing the power of the motor. In order to ensure the grinding effect of the food; in the cooking machine in the related art, due to the use of the hook commutator, when the power is increased by providing the wire diameter of the winding, the distance between the two adjacent windings is reduced, so that As a result, two adjacent commutation segments are prone to short circuit, which affects the service life of the motor.

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