An AC motor used in a range hood

Abstract

The invention relates to the technical field of range hoods, in particular to an AC motor used in range hoods, comprising a casing, a core is arranged in the casing, a center shaft is arranged in the middle of the core, and the casing comprises The front-end housing and the rear-end housing are inserted and connected, and the side wall of the rear-end housing is bent and folded outward to form a ring-shaped groove, and the inner cavity of the ring-shaped groove forms a return channel through the guide spacer. The two ends of the channel are cyclically connected by the circulating pump and the cooling coil; the rear end of the central shaft is provided with a synchronizing section, and outside the synchronizing section, the cooling fan and the circulating pump are respectively linked with the fan synchronizing ring and the pump body same ring which are slidingly connected. And one side of the fan synchronizing ring and the same ring of the pump body are respectively connected with an air-cooled heat dissipation adjusting mechanism and a liquid-cooled heat dissipation adjusting mechanism. The present invention can achieve accurate and appropriate heat dissipation effect according to the temperature change of the AC motor of the range hood, and keep the inner cavity of the housing in a more tightly sealed state, thereby preventing the intrusion of oil fume into the housing.

Description

technical field [0001] The invention relates to the technical field of range hoods, in particular to an AC motor used in range hoods. Background technique [0002] The range hood is a household kitchen to absorb the cooking fumes and other electrical appliances. It can not only fulfill the functional role well, but also have a decorative concept that integrates the modern kitchen layout. After the development of range hoods, range hoods are no longer limited to simple tools for removing range hoods in the kitchen, but have added more entertainment functions and usage functions, such as entertainment range hoods with TV monitors, and integrated smart home appliances. The range hood of the security system, the network range hood installed with network control, etc. The range hood needs to be cleaned regularly. Simple cleaning cannot remove the oil stains. To clean the range hood, professional cleaning agents must be used for cleaning. [0003] In the prior art, there are pro...

AI Technical Summary

Problems solved by technology

[0004] (1) The heat dissipation fan blade at the rear of the AC motor of the range hood rotates with the central axis. When the AC motor of the range hood rotates at a low speed, the fan blade can only rotate at a low speed, which has a weak heat dissipation effect. When the AC motor of the range hood When rotating at high speed, the fan blades will rotate at high speed to produce a strong heat dissipation effect. However, the AC motor of the range hood in a high-temperature environment does not only generate high temperature when it operates at high frequency, but also when the central shaft rotates at a low speed. High temperature is generated, and when the high frequency is used for a short time, the AC motor of the range hood will also heat up immediately. A strong heat dissipation effect is required. Only relying on the fan blades at the rear of the motor to rotate with the central axis cannot achieve accurate and proper heat dissipation. If the heat dissipation effect is too strong or too weak, it will increase the load on the motor and increase the energy consumption. If it is too weak, it will cause the temperature of the motor to drop and reduce the life of the motor.

[0005] (2) The AC motor of the existing range hood only ventilates and dissipates heat through the fan at the end. This cooling method is inefficient. When the AC motor of the range hood is in a relatively high temperature operating environment for a long time, the temperature is difficult to control and reduce

[0006] (3) The shell of the AC motor of the existing range hood is spliced ​​and assembled through the outer flanges of the two cylinder shells. Although this connection method is convenient for assembly, the sealing is not enough, and the AC motor of the range hood often runs in the fume environment , the oil fume will invade the motor from the joint gap between the shell of the motor, causing the motor to short circuit and burn out

[0007] (4) The front end of the AC motor of the existing range hood is sealed by the bearing, and the oil fume will invade and accumulate at the bearing, resulting in excessive temperature of the bearing during operation, and troublesome cleaning

[0008] (5) The AC motor casing of the existing range hood lacks noise reduction protection

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