Refrigeration equipment and shutdown control method of compressor of refrigeration equipment
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A technology of refrigeration equipment and control method, applied in the field of compressor control, can solve the problems of shell bump and impact, poor user experience, loud noise, etc., to avoid noise problems and improve experience.
Inactive Publication Date: 2020-04-03
HISENSE(SHANDONG)REFRIGERATOR CO LTD
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[0003] At present, the refrigeration equipment products of various manufacturers control the working speed of the compressor according to the ambient temperature (ambient temperature). When the temperature of the temperature control area of the refrigeration equipment reaches the set temperature, the compressor will be controlled to stop immediately, which will cause a The problem is that when the core of the compressor is at high speed, the temperature of the temperature control area of the refrigeration equipment re
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Embodiment 1
[0102] Embodiment 1: The target speed of a certain series of compressors is 4100R, the starting speed of the compressor is 2400R and the minimum speed of the series of compressors is 1200R, then the specific scheme for determining the preset shutdown speed and target acceleration is as follows:
[0103] It is preliminarily determined that the preset stop speed is the minimum speed of the compressor 1200R, and the N value is taken as 1, that is, a two-stage step stop scheme is adopted, and the first preset acceleration is 180R / S, that is, 3r / s 2 (acceleration unit), the first preset speed is 2400R, the first preset time length is 3 seconds, and the target acceleration is 120R / S or 2r / s 2 , with a target duration of 3 seconds.
[0104] Specifically, when the ambient temperature of the refrigeration equipment reaches above 37 degrees Celsius, its compressor starts, and the speed is increased from the starting speed of 2400R to the target speed of 4100R. When the temperature reac...
Embodiment 2
[0114] Embodiment 2: The target speed of a certain series of compressors is 4100R, the starting gear of the compressor (rotation speed for oiling) is 2400R, and the minimum speed of this series of compressors is 1200R. Three kinds of shutdown methods are respectively used for shutdown tests.
[0115] refer to Figure 13 , provides a broken-line graph of the shutdown vibration value of three different shutdown schemes, where the vertical axis is the vibration value (unit m / s 2 ), and the abscissa is the number of experimental groups. Specifically, scheme one is: control the compressor at 180R / S, that is, 3r / s 2 Decelerate the acceleration to 2400R, then directly at 120R / S or 2r / s 2 Decelerate the acceleration to 1600R, and stop after 3 seconds; the second plan is: control the compressor at 180R / S, that is, 3r / s 2 The acceleration directly decelerates to 1600R, and finally stops after 3 seconds; the third scheme is: control the compressor at 180R / S, that is, 3r / s 2 The first ...
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Abstract
The invention provides refrigeration equipment and a shutdown control method of a compressor of the refrigeration equipment, and relates to the field of compressors. The problem that when a machine core of the compressor collides with and impacts on a shell of the compressor at the shutdown moment, great noise is caused is avoided. The refrigeration equipment comprises a compressor, a temperaturedetection device and a control device; the temperature detection device is used for detecting the temperature of a temperature control area of the refrigeration equipment; and the control device is configured to be characterized in that if the rotating speed of the compressor is determined to be larger than the Nth preset rotating speed, the compressor is controlled to be sequentially deceleratedto the nth preset rotating speed by the nth preset accelerated speed according to the sequence of n from small to large and kept at the nth preset rotating speed for the nth preset duration, after thecompressor is controlled to be kept at the Nth preset rotating speed for the Nth preset duration, the compressor is decelerated to the preset shutdown rotating speed by the target accelerated speed,and after being controlled to be kept at the preset shutdown rotating speed for the target duration, the compressor is shut down.
Description
technical field [0001] The present application relates to the field of compressor control, in particular to a refrigeration device and a method for controlling shutdown of a compressor of the refrigeration device. Background technique [0002] With the development of refrigeration equipment for compressor refrigeration, the miniaturization (small space occupation) and low noise of refrigerators and air conditioners have become the main focus of people. The machine keeps the noise low. The miniaturization of the compressor requires a smaller shell of the compressor, but due to the cooling or heating requirements of the refrigeration equipment, it is necessary to make the shell of the compressor smaller on the premise of ensuring the efficiency of the compressor. This means that the distance between the core of the compressor and the casing is smaller. [0003] At present, the refrigeration equipment products of various manufacturers control the working speed of the compress...
Claims
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