Frequency conversion heat pump water heater and frequency conversion control method thereof

A heat pump water heater and controller technology, applied in fluid heaters, lighting and heating equipment, etc., can solve problems such as system design mismatch, and achieve the effect of reducing hot water waste and insulation loss

Active Publication Date: 2013-09-11
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The purpose of the present invention is to provide a frequency conversion heat pump water heater and its frequency conversion control method to solve the technical problem that the existing frequency conversion heat pump water heater does not match the system design under variable working conditions

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  • Frequency conversion heat pump water heater and frequency conversion control method thereof

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Embodiment Construction

[0023] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0024] Such as figure 1 As shown, one aspect of the present invention provides a frequency conversion heat pump water heater, including: a water tank 10; a heat exchange tube 20 located in the water tank 10 and having multiple parallel heat exchange tube branches; The heat pipes 20 are connected in series; the controller is used to control the operating frequency of the variable frequency compressor 30 and the opening number of multiple parallel heat exchange pipe branches according to the user demand signal, and the operating frequency of the variable frequency compressor 30 is consistent with the heat exchange pipe branches. Corresponding to the number of roads opened.

[0025] The frequency conversion heat pump water heater provided by the prese...

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Abstract

The invention provides a frequency conversion heat pump water heater and the frequency conversion control method thereof. The frequency conversion heat pump water heater comprises a water tank, heat exchange tubes, a frequency conversion compressor and a controller, wherein the heat exchange tubes are positioned in the water tank and provided with a plurality of heat exchange tube branches connected in parallel, the frequency conversion compressor is connected in series with the heat exchange tubes, and the controller is used for controlling running frequency of the frequency conversion compressor and opening quantity of a plurality of the heat exchange tube branches connected in parallel according to a demand signal of a user. The frequency conversion heat pump water heater provided by the invention has the advantages that the running is more efficient and saves energy, meanwhile, unnecessary hot water waste and heat preservation loss of the water tank are reduced.

Description

technical field [0001] The invention relates to the technical field of air source heat pump water heaters, in particular to a frequency conversion heat pump water heater and a frequency conversion control method thereof. Background technique [0002] Air source heat pump water heaters, as high-efficiency, energy-saving and environmentally friendly equipment, have been increasingly widely used at home and abroad in recent years. However, ordinary air source heat pump water heaters use fixed-frequency compressors, which still have problems such as inability to run stably and reliably for a long time under wide-load and wide-temperature conditions, large starting current of the compressor, and rapid decline in heating capacity under low-temperature environmental conditions. For heat pump water heaters using inverter compressors, the design of the water tank heat exchanger and evaporator is generally based on the design method of fixed frequency heat pump water heaters, and is d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H4/04F24H9/20
Inventor 董明珠李绍斌欧阳光袁明征黄娟
Owner GREE ELECTRIC APPLIANCES INC
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