Thermoelectricity cooling device of ultrasonic motor

Abstract

The invention discloses a thermoelectricity cooling device of an ultrasonic motor. The thermoelectricity cooling device comprises the ultrasonic motor, a thermoelectric cooler, three cooling layers and an outside drive motor, wherein the thermoelectric cooler is in a square shape and is externally tangent to the circumference of a casing of the ultrasonic motor; a circular roller is arranged on the lower surface of the thermoelectric cooler; the three cooling layers are in the same structure and symmetrically connected through keyways at 120 degrees pairwise; the cooling layers are in a square cavity structure, and circular grooves are arranged on the upper surfaces of the cooling layers; the cavities are filled with inorganic salt phase change materials; and a spindle head of the outside drive motor is connected with the middle keyway of the three cooling layers. According to the thermoelectricity cooling device of the ultrasonic motor, the structure is compact, the size is small; the thermoelectric cooler is adopted to replace the existing motor metal bases, so that heat generated in a stator of the motor can be transferred quickly; and inorganic salt phase change is adopted for the cooling layers to absorb heat, a cooling circuit is not needed to be externally connected, and the thermoelectricity cooling device is suitable for situations with low mobility in sealed environments and can be recycled.

Description

Technical field [0001] The invention relates to a thermoelectric refrigeration and heat dissipation device, in particular to a thermoelectric heat dissipation device of an ultrasonic motor, which is suitable for a long-time continuous operation of the ultrasonic motor in a closed environment and can realize a long-term continuous operation of the ultrasonic motor in a closed environment. Background technique [0002] Existing ultrasonic motors generate serious heat during operation, and generally have a very high temperature rise after 20 minutes of continuous operation, which causes a drift in the operating frequency of the ultrasonic motor and affects the output characteristics of the ultrasonic motor. In the traditional design, an aluminum base plate is used to fix the ultrasonic motor stator, and the heat conduction ability of aluminum is used to conduct the heat of the motor during operation from the stator to the outside environment. However, usually the motor works at a hi...

AI Technical Summary

Problems solved by technology

However, for ultrasonic motors, the heat in the stator is serious and rapid, and the heat in the stator cannot be quickly dissipated by using the thermal conductivity of metal, and the temperature of the motor will still rise rapidly

In addition, the air-cooled system requires a fan for forced convection heat dissipation. In some closed places, the air-cooled method is not suitable

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