Heat pump unit with multistage air cavities

Abstract

The invention discloses a heat pump unit with multistage air cavities. The heat pump unit comprises a unit shell. The unit shell comprises a fan cavity for arranging a fan and a heat exchanger and a compressor cavity for arranging a compressor unit, and the heat exchanger is arranged on the side, far away from the compressor unit, of the fan. An air outlet cavity is further formed between the fan cavity and the compressor cavity, and a side air outlet with the air outlet direction perpendicular to the air outlet direction of the fan is formed in the air outlet cavity. By means of the heat pump unit, the direction of an air channel can be effectively changed, vibration and noise generated when air is directly blown out of the heat pump unit from fan blades through an air guide ring and flows through the side air outlet are reduced, noise generated by rotation of the fan is effectively dissipated in the heat pump unit, the overall noise of the heat pump unit is obviously reduced compared with an existing structure, and the heat pump unit runs stably; and as the fan is arranged in the fan cavity, the shape of the side air outlet is variable, the appearance structure can be designed in a diversified manner, and more space is provided for the overall structure design of the heat pump unit.

Description

technical field [0001] The invention relates to the technical field of heat pump units, in particular to a heat pump unit with multi-stage air chambers. Background technique [0002] The air source heat pump unit is a cycle system composed of compressor, condenser, throttling device, evaporator and other devices. The refrigerant circulates in the system under the action of the compressor. It completes the process of increasing the pressure and temperature of the gaseous state in the compressor. After entering the condenser, it exchanges heat with cold water to realize the process of producing high-temperature hot water. The refrigerant is cooled and converted into a liquid state. When it runs into the evaporator, The liquid refrigerant quickly absorbs the heat of the surrounding air, the temperature of the air around the evaporator drops rapidly, the refrigerant evaporates and turns into a gaseous state, and returns to the compressor to complete a cycle of the refrigerant. ...

AI Technical Summary

Problems solved by technology

[0003] The traditional heat pump unit adopts the left and right matching design of the fan cavity + compressor cavity or the top and bottom matching design. The fan blades are placed close to the unit air cavity and facing the air outlet. The fan cavity is equipped with a fan guard. The inner "extraction" blows to the front or directly above, because the fan and the fan blades in the fan chamber rotate, and the wind flows through the fan guard net and blows out of the unit directly into the human ear, the vibration noise is relatively large, which affects the user experience; and usually the inverter board The heat sink is located on the top of the air cavity, and is located in the vertical direction of the fan blades. The air volume flowing through the heat sink during the air outlet process is not sufficient, and only accounts for a small proportion of the total air volume. The heat dissipation effect is poor, and the temperature of the drive board is high. Conducive to the stability of frequency conversion unit operation

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