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A fuzzy control method of constant temperature room

A technology of fuzzy control and constant temperature, which is applied in the direction of household refrigeration equipment, climate sustainability, lighting and heating equipment, etc. It can solve the problems of not being able to quickly reach the constant temperature and the slow response speed of temperature adjustment, so as to improve the response speed and accuracy , the effect of shortening the time

Active Publication Date: 2022-07-05
CHANGHONG MEILING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to provide a fuzzy control method for a constant temperature compartment, by detecting the variation of the temperature in the constant temperature compartment, quickly judge the temperature type of the item put in, and improve the response speed of the temperature control and adjustment of the constant temperature compartment; solve the problem There is a problem that the temperature adjustment response speed of the constant temperature room is slow, and the constant temperature cannot be reached quickly

Method used

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  • A fuzzy control method of constant temperature room
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Embodiment 1

[0034] see figure 1 As shown, the present invention is a fuzzy control method for a constant temperature room, comprising the following steps:

[0035] Step 1: When the system recognizes that the refrigerator door is open, record the temperature T0 of the constant temperature compartment when the refrigerator door is opened, and close the constant temperature compartment damper; the temperature of the constant temperature compartment is detected by the temperature sensor installed in the constant temperature compartment. If the constant temperature compartment damper is already closed, keep it closed.

[0036] Wherein, if the constant temperature compartment is provided with a separate door switch sensor, the door switch sensor of the constant temperature compartment can be used instead of the refrigerator door switch sensor. More precise control can be achieved, avoiding the situation that the user only opens the refrigerating door without opening the constant temperature co...

Embodiment 2

[0052] Step 1: When the user opens the refrigerator door, the system records the current temperature T0 of the constant temperature compartment sensor, for example, T0 is -3°C; close the constant temperature compartment damper.

[0053] At this time, the user puts 1kg of fresh meat at room temperature in the constant temperature room.

[0054] Step 2: After the user closes the refrigerating door, the system turns on the refrigerating fan and the constant temperature compartment damper to cool the constant temperature compartment.

[0055] Because the room temperature fresh meat is put in, the temperature in the constant temperature room rises. If the temperature detected by the constant temperature room sensor does not drop to T0=-3℃, and the cooling of the constant temperature room has been running for 2 minutes set by time1; then , at this time, close the constant temperature compartment damper and freezer fan, stop cooling the constant temperature compartment, and record th...

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Abstract

The invention discloses a fuzzy control method for a constant temperature compartment, which relates to the technical field of refrigerators. The present invention includes step 1: recording the temperature T0 of the constant temperature compartment when the refrigerating door is opened; step 2: refrigerating the constant temperature compartment when the refrigerating door is closed; when the room temperature is less than or equal to T0 or the cooling time reaches time1, the cooling is stopped, and recording The temperature is T1; Step 3: After stopping the cooling time2, record the temperature T2, and calculate the difference between T2-T1; Step 4: Set the temperature parameters Ta and Tb, and Ta<Tb; start and stop temperature values ​​△T3 and △T4 ; Refrigeration operation time time3 and time4; and compare the difference between T2-T1 and Ta, Tb; Step 5: After the operation of Step 4, the constant temperature room is restored and runs at the original start-stop temperature. By detecting the variation of the indoor temperature in the constant temperature room, the invention can quickly judge the temperature of the put-in items, improve the response speed of the temperature control of the constant-temperature room, and effectively shorten the time for the put-in items to reach the target constant temperature temperature.

Description

technical field [0001] The invention belongs to the technical field of refrigerators, and in particular relates to a fuzzy control method for a constant temperature compartment. Background technique [0002] With the development of the times, the storage function of refrigerators is becoming more and more perfect, and it has been proved by experiments that the smaller the fluctuation of room temperature, the more conducive to the storage of food. More and more new refrigerators begin to carry thermostatic compartments. [0003] In a single-system refrigerator, the temperature range of the constant temperature compartment has exceeded the temperature control range of the refrigerating compartment. Therefore, most constant temperature compartments use the cooling capacity of the refrigerating evaporator to achieve temperature control. The constant temperature compartment damper realizes the cooling of the constant temperature compartment. Since the cooling capacity of the co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25D29/00
CPCF25D29/00F25D2500/06F25D2600/06F25D2600/02F25D2700/02F25D2700/12Y02B40/00
Inventor 刘宏宇程琳
Owner CHANGHONG MEILING CO LTD