Permanent magnet variable frequency air compressor motor cooling system

Abstract

The utility model provides a kind of permanent magnet variable frequency air compressor motor cooling system, including fan housing, fan, plate-fin heat exchanger and water pump;The fan housing and water pump are fixedly installed on air compressor base, plate-fin heat exchanger and fan are fixedly installed on the two sides of fan housing along the thickness direction, the upper surface of plate-fin heat exchanger is provided with breathable cap, side is provided with liquid level meter;And the plate-fin heat exchanger is connected with water pump by connecting pipe;Water outlet pipe one end is connected with water pump, the other end connects the water inlet of air compressor heat exchange cavity, water inlet pipe is connected with the water outlet of air compressor heat exchange cavity. The permanent magnet variable frequency air compressor motor cooling system described above does not need to set up plastic water tank, so the risk of aging leakage after long-term use is relatively low, and the integrity is relatively strong.

Description

Technical Field

[0001] This utility model relates to a cooling system for a permanent magnet variable frequency air compressor motor. Background Technology

[0002] An air compressor, also known as an air compressor, is a device used to compress gases. It can adapt to special and harsh environments such as high humidity, dust, high temperature, flammability, and explosiveness, as well as occasions with large impact and load changes. It has many advantages that other power machinery does not have, and therefore, it is used in many industries such as mining, machinery, metallurgy, and building materials.

[0003] An air compressor is driven by a motor to compress air. During operation, the motor generates heat and needs to be cooled in time to avoid shortening its service life or causing malfunctions due to high temperature, which would affect the normal use of the air compressor.

[0004] Currently, in air compressor motor cooling systems, the cooling effect of air-cooled systems is greatly affected by the environment. When the ambient temperature is high, the cooling effect is poor, easily causing the air compressor motor to overheat and affecting its service life. When used in dusty environments, dust accumulation easily affects motor heat dissipation, also easily causing motor overheating and affecting service life. Air-cooled systems cannot guarantee that the motor will always receive good cooling. Liquid cooling systems have better cooling effect and are therefore a common technical solution on the market. This system uses coolant as a medium to cool the permanent magnet air compressor motor. Besides the coolant used for cooling the motor housing and heat exchanger, excess coolant is stored in a plastic tank. The plastic tank is positioned higher than the plate-fin heat exchanger and connected to it, with automatic coolant replenishment achieved by gravity. This solution results in excess coolant waste, higher costs, and a cumbersome layout lacking integration. Utility Model Content

[0005] The main technical problem to be solved by this utility model is to provide a permanent magnet variable frequency air compressor motor cooling system that increases the heat dissipation effect of the air compressor without the need for a water tank.

[0006] To solve the above-mentioned technical problems, this utility model provides a permanent magnet variable frequency air compressor motor cooling system, characterized by including a fan shroud, a fan, a plate-fin heat exchanger, and a water pump; the fan shroud and the water pump are mounted and fixed on the air compressor base, the plate-fin heat exchanger and the fan are mounted and fixed on both sides of the fan shroud along the thickness direction, the upper surface of the plate-fin heat exchanger is provided with a vent cap, and the side is provided with a level gauge; and the plate-fin heat exchanger is connected to the water pump through a connecting pipe; one end of the water outlet pipe is connected to the water pump, and the other end is connected to the water inlet of the air compressor's heat exchange chamber, and the water inlet pipe is connected to the water outlet of the air compressor's heat exchange chamber.

[0007] In a preferred embodiment: the level gauge is used to indicate the liquid level height of the coolant in the plate-fin heat exchanger.

[0008] In a preferred embodiment: the plate-fin heat exchanger has a liquid inlet, and the vent cap is disposed at the liquid inlet.

[0009] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0010] This invention provides a permanent magnet variable frequency air compressor motor cooling system that eliminates the need for a plastic water tank, thus reducing the risk of aging and leakage after long-term use and enhancing overall integrity. Attached Figure Description

[0011] Figure 1 This is an exploded view of the cooling system in a preferred embodiment of the present invention. Detailed Implementation

[0012] To make the technical solution and features of this utility model clearer, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific examples. It should be understood that these examples are only for illustrating this utility model and are not intended to limit the scope of this utility model. After reading this utility model, any modifications of this utility model by those skilled in the art in various equivalent forms fall within the scope defined by the appended claims.

[0013] refer to Figure 1 This embodiment provides a permanent magnet variable frequency air compressor motor cooling system, including a fan shroud 2, a fan 1, a plate-fin heat exchanger 4, and a water pump 7. The fan shroud 2 and the water pump 7 are installed and fixed on the air compressor base. The plate-fin heat exchanger 4 and the fan 1 are installed and fixed on both sides of the fan shroud 2 along the thickness direction. A vent cap 3 is installed at the liquid inlet position on the upper surface of the plate-fin heat exchanger 4, and a liquid level gauge 9 is installed on the side. The plate-fin heat exchanger 4 is connected to the water pump 7 through a connecting pipe 8. One end of the water outlet pipe 6 is connected to the water pump 7, and the other end is connected to the water inlet of the heat exchange chamber of the air compressor. The water inlet pipe 5 is connected to the water outlet of the heat exchange chamber of the air compressor, forming a complete closed-loop cooling system.

[0014] The required coolant is added to the plate-fin heat exchanger 4 by opening the vent cap 3. The amount of coolant added is observed in real time by the level gauge 9 until the required amount of coolant is added. When the air compressor is powered on, the water pump 7 starts running, drawing the coolant from the plate-fin heat exchanger 4 into the water pump 7 through the connecting pipe 8, and then into the heat exchange chamber through the outlet pipe 6. The coolant circulates in the heat exchange chamber and carries away the heat from the motor. The coolant carrying heat enters the inlet pipe 5 through the heat exchange chamber outlet, and then enters the plate-fin heat exchanger 4 again. The air carried in it is discharged through the vent cap 3. The cold air blown out by the fan 1 exchanges heat with the coolant carrying heat in the plate-fin heat exchanger 4, completing one cooling cycle.

[0015] The above is only one specific embodiment of the present utility model, but the design concept of the present utility model is not limited thereto. Any non-substantial modifications made to the present utility model using this concept shall be deemed as an infringement of the protection scope of the present utility model.

Claims

1. A cooling system for a permanent magnet variable frequency air compressor motor, characterized in that... The system includes a fan shroud, a fan, a plate-fin heat exchanger, and a water pump. The fan shroud and water pump are mounted and fixed on the air compressor base. The plate-fin heat exchanger and fan are mounted and fixed on both sides of the fan shroud along its thickness direction. The upper surface of the plate-fin heat exchanger is equipped with a vent cap, and a level gauge is installed on its side. The plate-fin heat exchanger is connected to the water pump via a connecting pipe. One end of the water outlet pipe is connected to the water pump, and the other end is connected to the water inlet of the air compressor's heat exchange chamber. The water inlet pipe is connected to the water outlet of the air compressor's heat exchange chamber.

2. The permanent magnet variable frequency air compressor motor cooling system according to claim 1, characterized in that: The level gauge is used to indicate the liquid level of the coolant in the plate-fin heat exchanger.

3. The permanent magnet variable frequency air compressor motor cooling system according to claim 1, characterized in that: The plate-fin heat exchanger has a liquid inlet, and the vent cap is located at the liquid inlet.

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