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Method for calculating environment temperature for refrigerator

A technology for calculating the environment and ambient temperature, applied in applications, household appliances, household refrigeration devices, etc., can solve the problems of inaccuracy, increase the cost of refrigerators, affect the control stability, etc., and achieve the effect of reducing electrical components and manufacturing costs.

Pending Publication Date: 2021-07-13
CHANGHONG MEILING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the method of obtaining the ambient temperature is generally to install an ambient temperature sensor on the refrigerator, which is usually combined with the display panel or control panel of the refrigerator, and obtain the ambient temperature around the refrigerator through the temperature sensor. The ambient temperature obtained in this way is The method is not accurate enough due to the influence of the heat dissipation of the combined electrical components, which affects the control stability; at the same time, in addition to increasing the cost of the ambient temperature sensor, it is necessary to additionally install other auxiliary electrical components, such as cables, chip processors and other components, and increase the refrigerator temperature. the cost of

Method used

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  • Method for calculating environment temperature for refrigerator
  • Method for calculating environment temperature for refrigerator
  • Method for calculating environment temperature for refrigerator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] In the controller of the refrigerator, there is a pre-stored power-on rate value δ as shown in the following table n and the corresponding ambient temperature T n corresponding table. Refrigerator operating rate δ n Under laboratory conditions, the corresponding ambient temperature test is obtained, and it is pre-set in the refrigerator controller. The value range of n is 0-50.

[0028] Boot rate value δ 0

δ 1

δ 2

…… δ 50

ambient temperature T 0

T 1

T 2

…… T 50

[0029] The operating rate value δ is calculated by the following formula: δ=starting time / (starting time+downtime).

[0030] When the refrigerator enters stable operation and maintains the stable operation state for N refrigeration cycles, detect, record and calculate the average value δ' of the operating rate values ​​under the above N refrigeration cycles. The value of N ranges from 2 to 10, and N=3 is recommended.

[0031] According to the av...

Embodiment 2

[0034] For example, the current refrigerator has entered a stable operating state and has run for 3 refrigeration cycles. It has been detected that the operating rates of the above 3 refrigeration cycles are 48%, 52% and 50% respectively. Through calculation, the operating rates of the above 3 refrigeration cycles can be obtained The average value of the values ​​is 50%.

[0035] According to the corresponding table, the current ambient temperature is 25°C.

[0036] Boot rate value 20％ …… 50％ …… 95％ ambient temperature 0℃ …… 25℃ …… 50℃

[0037] After every 24 hours, the above method for calculating the ambient temperature is recycled to update the ambient temperature again.

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Abstract

The invention discloses a method for calculating the environment temperature for a refrigerator, and relates to the technical field of refrigerator control methods. According to the method, a starting rate value delta n is preset in a refrigerator controller, and the environment temperature Tn corresponding to the preset starting rate value delta n is preset in the refrigerator controller. After a variable frequency refrigerator enters stable operation, the refrigerator controller detects and stores the starting rate value average value delta' of the variable frequency refrigerator in real time. The refrigerator controller compares and analyzes the starting rate value average value delta' of the variable frequency refrigerator and the preset starting rate value delta n, and the current environment temperature is obtained. The starting rate of the refrigerator is calculated, the calculation result is compared with the corresponding relation of the starting rate value and the environment temperature which are pre-stored in the refrigerator controller, and the current environment temperature value is obtained. The refrigerator does not need an environment temperature sensor, electric appliance components are reduced, and the manufacturing cost of the refrigerator is effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of refrigerator control methods, in particular to a method for calculating the ambient temperature of a refrigerator. Background technique [0002] With the continuous upgrading of refrigerator energy efficiency standards, refrigerators have begun to popularize the application of inverter compressors. In order to control the compressor speed, fan speed and room parameters (such as the start and stop parameters of the refrigerator room, variable temperature room, freezer room, etc.) The ambient temperature measured by the existing ambient temperature sensor is used as a reference, and different control parameters are used to control the speed of the compressor and the fan, and adjust the start and stop points of the refrigerating room or variable room, so as to achieve the purpose of precisely controlling the cooling operation of the refrigerator. [0003] At present, the method of obtaining the ambient temp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25D29/00
CPCF25D29/00F25D2600/06
Inventor 尚殿波刘宏宇
Owner CHANGHONG MEILING CO LTD
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