Motor cooling mechanism for refrigeration compressor
A refrigeration compressor and motor cooling technology, which is applied to electromechanical devices, cooling/ventilation devices, electrical components, etc., can solve the problems of reducing the quality and displacement of the compressor, the compressor is not easy to run for a long time, and the gas specific volume is increased. achieve the effect of increasing the cooling capacity
Pending Publication Date: 2017-10-24
FUJIAN SNOWMAN
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Problems solved by technology
Most of the existing compressors use the suction side refrigerant directly through the motor stator to cool the motor or use the first stage exhaust to cool the motor. Using such a motor cooling method will cause further overheating of the refrigerant gas, thereby increasing the The specific volume of the gas reduces the mass displacement of the compressor, which will reduce the cooling capacity, refrigeration coefficient and efficiency of the compressor
Due to the relatively high temperature of the motor itself, using this method of direct cooling of the suction end or the first-stage exhaust air will make it difficult for the compressor to run for a long time at a low load, that is, 25% load
Method used
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Embodiment 1
[0033] Please refer to Figure 1-3 , Embodiment 1 of the present invention is:
[0034] A motor cooling mechanism for a refrigeration compressor, comprising a motor housing 1, a stator 2, an end cover 3, a cooling jacket 4, a sprayer 5 and a liquid sprayer 6, the open end of the motor housing 1 is provided with the The end cover 3, the cooling jacket 4 is sleeved on the stator 2 and is arranged between the stator 2 and the motor housing 1, the material of the cooling jacket 4 is aluminum alloy, and the sprayer 5 The liquid sprayer 6 is respectively arranged on the end cover 3, the sprayer 5 is arranged at the center of the end cover 3, and the sprayer 5 and the liquid sprayer 6 are separately connected from the outside of the motor housing 1. Extending into the inside of the motor housing 1, the outer wall of the cooling jacket 4 (in this embodiment, the direction outside the motor housing is the outer direction, and the direction inside the motor housing is the inner directi...
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The invention discloses a motor cooling mechanism for a refrigeration compressor. The motor cooling mechanism comprises a motor housing, a stator, an end cover, a cooling jacket, a sprayer and a dispenser, wherein the end cover is arranged at an opening end of the motor housing, the cooling jacket sleeves the stator and is arranged between the stator and the motor housing, the sprayer and the dispenser are arranged on the end cover, the sprayer and the dispenser extend into the interior of the motor housing from the exterior of the motor housing, grooves are formed in the outer side wall of the cooling jacket, the grooves are formed around the cooling jacket along the axial direction of the cooling jacket, the side wall of the motor housing is provided with an oil inlet and an oil outlet, and the oil inlet and the oil outlet are communicated with the grooves separately. The motor cooling mechanism improves the refrigerating capacity, refrigeration coefficient and efficiency of the refrigeration compressor, and enables the refrigeration compressor to operate for a long time at low load, i.e., under 25% load.
Description
technical field [0001] The invention relates to the technical field of refrigeration, in particular to a motor cooling mechanism of a refrigeration compressor. Background technique [0002] Refrigeration compressors are widely used in quick-freezing food, freeze-drying medicine and food, ultra-low temperature refrigerators, ship refrigeration and other fields. When the refrigeration compressor is in use, it is necessary to cool the motor of the compressor to avoid overheating. Most of the existing compressors use the suction side refrigerant directly through the motor stator to cool the motor or use the first stage exhaust to cool the motor. Using such a motor cooling method will cause further overheating of the refrigerant gas, thereby increasing the The specific volume of the gas reduces the mass displacement of the compressor, which will reduce the cooling capacity, refrigeration coefficient and efficiency of the compressor. Because the temperature of the motor itself i...
Claims
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IPC IPC(8): H02K9/19
CPCH02K9/19
Inventor 林汝捷黄拓
Owner FUJIAN SNOWMAN