Method for operating a rotational-speed-variable refrigerant compressor
A technology of running speed and coolant, applied in the directions of refrigerators, applications, heating methods, etc., can solve problems such as increased energy consumption of coolant compressors
Inactive Publication Date: 2019-09-13
NIDEC GLOBAL APPLIANCE GERMANY GMBH
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- Abstract
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- Claims
- Application Information
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Problems solved by technology
As a result, the duration of the cooling cycle following a particular operating state is unduly longer than the duration of the previous cooling cycle, and the long duration of the cooling cycle leads to an increase in the energy consumption of the coolant compressor
Method used
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Embodiment Construction
[0099] figure 1 A simple cooling device 1 is shown. The cooling device has a variable-speed coolant compressor 2, a coolant line 5, and an evaporator 5a. The coolant compressor 2, the coolant pipeline 5, and the evaporator 5a together constitute a closed coolant system. During operation, that is, during the cooling cycle C of the coolant compressor 2 K During this period, the coolant circulates in this coolant system. The cooling device 1 has a cooling space 4, and the evaporator 5a can extract heat from or supply cooling power to the cooling space 4 in a manner that the coolant evaporates in the evaporator 5a.
[0100] The various components of the refrigerant compressor 2, that is, at least one piston-cylinder unit that compresses the refrigerant in a rhythmic manner, and an electric drive unit capable of driving the piston-cylinder unit are arranged in the housing 8 of the refrigerant compressor 2. . The variable-speed coolant compressor 2 also has an electronic control devic...
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The invention relates to a method for operating a rotational-speed-variable refrigerant compressor (2) for cooling a cooling volume (4) of a refrigeration system (1), which refrigeration system does not have its own control unit, wherein the refrigeration system (1) comprises at least one thermostat (3) for directly or indirectly monitoring a temperature state of the cooling volume (4) and whereinthe rotational-speed behavior of the refrigerant compressor (2) during a cooling cycle is controlled by means of a specification rotational-speed control stored in an electronic control device (6) ofthe refrigerant compressor (2). According to the invention, in order to enable adjustment of the rotational-speed behavior in reaction to a preceding special operating state and to enable energy-optimized cooling of the cooling volume (4) that is as fast as possible, at least one comparison parameter is stored in the electronic control device (6) of the refrigerant compressor (2) and exceedance or undershooting of the comparison parameter by a current measured parameter value is monitored, a special cooling cycle different from the specification rotational-speed control is triggered if the current measured parameter value exceeds or undershoots the comparison parameter, possibly, a current cooling cycle controlled by means of the specification rotational-speed control is interrupted by the special cooling cycle.
Description
Technical field [0001] The present invention relates to a method for a refrigerant compressor for cooling a cooling space of a cooling device with a variable operating speed, the cooling device including a thermostat for directly or indirectly monitoring the temperature state of the cooling space , And the refrigerant compressor runs periodically, and if the refrigerant compressor is placed in the on state by a switch signal triggered by the thermostat, the cooling cycle of the refrigerant compressor starts, and if the refrigerant compresses The machine is placed in the off state by another switch signal triggered by the thermostat, the cooling cycle ends. In addition to the cooling cycle, the operating cycle also includes a static cycle following the cooling cycle, and during the cooling cycle with the help of The rotational speed adjustment program stored in the electronic control device of the refrigerant compressor adjusts the rotational speed performance of the refrigerant ...
Claims
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IPC IPC(8): F25B49/02F25B47/02
CPCF25B47/02F25B49/022F25B2600/0253F25B2700/151F25B2700/2106F25B2700/21153Y02B30/70F24F11/37F24F11/64F24F11/65
Inventor U·格里斯J·E·格莱塞A·H·斯洛特H-E·福格
Owner NIDEC GLOBAL APPLIANCE GERMANY GMBH