Method and device used for controlling internal temperature of refrigeration equipment

Abstract

The invention relates to a method and device used for controlling internal temperature of refrigeration equipment. The method comprises following steps of: c) detecting whether alternating voltage of the refrigeration equipment exceeds zero; d), judging whether at least one generated control signal is present when alternating voltage exceeds zero; and e) outputting at least one control signal to at least one temperature regulation unit when at least one generated control signal is present. In the step d), at least one control signal is used for controlling at least one temperature regulation unit and the at least one temperature regulation unit is a compressor of the refrigeration equipment and / low-temperature compensation heating wires. Based on the technical scheme, the method and device used for controlling internal temperature of the refrigeration equipment have following beneficial effects: impact of temperature regulation units of the refrigeration equipment to a power grid is recued; temperature regulation units can be rapidly controlled; and overly long or short boot time caused by the low-temperature compensation heating wires is avoided because a user regulates shifts of a temperature controller.

Description

technical field [0001] The present invention relates to the field of refrigeration equipment control, in particular, the present invention relates to a method and device for controlling the internal temperature of a refrigeration equipment and a refrigeration equipment having the device or applying the method. Background technique [0002] In the traditional control mode of refrigerating equipment, for example, in a mechanical refrigerator, the start and stop of the compressor of the refrigerator depends on the switch of the thermostat. A temperature-sensing head is arranged on the thermostat, and a switch of the thermostat can be turned on or off according to the temperature of the temperature-sensing head, thereby controlling the compressor of the refrigerator. When the season changes, the user needs to manually adjust the gear position of the thermostat so that the control mode is adapted to different ambient temperatures. In addition, the low temperature compensation he...

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Problems solved by technology

[0003] This traditional mechanical refrigerator control mode has the following disadvantages: First, the thermostat gear of the mechanical refrigerator needs to be manually adjusted by the user.

Due to the error of the magnetic sensitive switch, it cannot be precisely controlled, and there is still a risk of poor refrigeration in winter and a very large power consumption in summer

[0004] In addition, in traditional refrigeration equipment, when the temperature regulation units such as compressors and low-temperature compensation heating wires start or stop at the non-zero crossing point of the alternating voltage, it will have an impact on the power grid and affect the work of other equipment in the power grid. At the same time, it will also reduce the service life of the thermostat itself

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