Air pipe machine

Abstract

The invention discloses an air pipe machine and relates to the technical field of air conditioners. The air pipe machine is invented in order to solve the problem that an air pipe machine in the prior art has high noise during work. The air pipe machine comprises a case. An air inlet and an air outlet are formed in the case. A centrifugal fan and a heat exchanger are arranged in the case. The centrifugal fan comprises a volute and an impeller arranged in the volute. The heat exchanger comprises an air inflow face and an air outflow face. An air outlet of the volute is opposite to the air inflow face of the heat exchanger, and a volute tongue is formed at the position of the air outlet of the volute. A contour line of the volute tongue comprises an arc section and a linear section which are sequentially connected, and an extension line of the linear section intersects with the air inflow face of the heat exchanger. The air pipe machine can be used for adjusting indoor temperature.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to an air duct machine. Background technique [0002] The air duct machine is a new model developed in response to the diverse needs of the market and the changes in the overall decoration space. It is suitable for installation and maintenance of small width occasions, especially for small-sized families. Now users have higher and higher requirements for reducing their noise, because most of the household ceiling-buried air duct machines are installed in bedrooms, so it is even more necessary to effectively control the noise level of the air duct machine. [0003] An existing air duct machine is as figure 1 The structure shown includes: a casing 01, an air inlet (not shown in the figure) and an air outlet 011 are opened on the casing 01, a centrifugal fan 02 and a heat exchanger 03 are arranged inside the casing 01, and the centrifugal fan 02 includes a volute 021 and an ...

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