Air conditioner and short tube throttle valve thereof

Abstract

The invention provides an air conditioner and a short tube throttle valve thereof. The short tube throttle valve comprises a valve body, a first baffle block, a valve seat, a second baffle block, a primary valve core and a secondary valve core, wherein the valve body is provided with a flow channel; the first baffle block, the valve seat and the second baffle block are all fixedly connected with the inner wall of the valve body in a sealing manner; the first baffle block is provided with a first channel; the second baffle block is provided with a second channel; the primary valve core is arranged in the valve seat in a sealing and sleeving manner and can slide axially along the flow channel; the primary valve core is provided with a primary throttle channel which is communicated with the second channel, and an accommodating cavity which is communicated with the primary throttle channel; the two ends of the primary valve core can be respectively connected with the end surface of the first baffle block and the end surface of the second baffle block in a sealing manner; the secondary valve core is provided with a secondary throttle channel and a flow division through groove, and can slide axially along the flow channel, so that the primary throttle channel is communicated with the secondary throttle channel through the first channel when the secondary valve core is pressed against the accommodating cavity, and the primary throttle channel is communicated with the flow division through groove through the first channel when the secondary valve core is separated from the accommodating cavity. According to the short tube throttle valve, bidirectional throttling is realized, and the short tube throttle valve can be applied to a cold-warm air conditioner.

Description

technical field [0001] The invention relates to the technical field of throttling of air conditioners, in particular to an air conditioner and a short pipe throttle valve thereof. Background technique [0002] With the continuous development of the air-conditioning industry, the competition pressure of the air-conditioning industry is increasing, and the production cost of air-conditioners needs to be reduced. As the price of copper rises, reducing the amount of copper used in air conditioners can reduce the production cost of air conditioners. At present, copper tubes are required for the refrigerant circulation tubes and capillary tubes in air conditioners. Due to the advantages of low cost, strong throttling performance, and large adjustment range, short-tube throttle valves are widely used instead of capillary tubes. [0003] However, the current spool throttle valve is a straight-through one-way channel, which can only be applied to cooling-only air conditioners, and ...

AI Technical Summary

Problems solved by technology

[0003] However, the current spool throttle valve is a straight-through one-way channel, which can only be applied to cooling-only air conditioners, and cannot realize two-way throttling, so it cannot be applied to heating and cooling air conditioners

[0004] In addition, the current short-pipe throttle valve is a straight-through type, which generates a lot of noise when throttling, and is prone to whistling, which affects the performance of the air conditioner

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