CN108592510A - A kind of method for controlling frequency conversion of single temperature control wind cooling refrigerator by refrigeration temperature control - Google Patents

Abstract

The present invention provides a kind of method for controlling frequency conversion of single temperature control wind cooling refrigerator by refrigeration temperature control, includes the following steps：Step 1, set environment temperature range T is from low to high divided into T k temperature section T₁, T₂... T_k‑1, T_k；Step 2, compressor rotary speed gear N is set, k rotating speed gear N is divided within the scope of compressor given rotating speed₁, N₂... N_k‑1, N_k；Step 3, acquisition environment temperature T_h；Step 4, different compressor rotary speed gears is corresponded under different environment temperature sections, actual speed is automatically controlled by computer program in same gear.The beneficial effects of the present invention are introduce the factor of the environment temperature as control compressor rotary speed, can meet the slow-speed of revolution requirement for reducing power consumption, freezer temperature when high and low environment temperature can also be made to reach standard requirement.

Description

A kind of method for controlling frequency conversion of single temperature control wind cooling refrigerator by refrigeration temperature control

Technical field

The present invention relates to a kind of refrigerator, more particularly to the frequency control of a kind of single temperature control wind cooling refrigerator by refrigeration temperature control Method.

Background technology

Now each indoor temperature of full blast cold refrigerator on the market be typically all can independent control, refrigerating chamber and cold Freezing room respectively has a temperature sensor, is generally that adjustment compressor turns with the temperature difference of freezing chamber actual temperature and freezing chamber set temperature The Main Factors of speed.The advantages of this kind of refrigerator, which is each compartment temperature, independently to be accurately controlled, and control method is simple；Defect is electric appliance Part is more, and manufacturing cost and maintenance cost are higher.Nearly all frequency conversion refrigerator and frequency control mode are also all currently on the market For such refrigerator.Also a kind of single temperature control refrigerating full blast cold refrigerator by refrigeration temperature control, such refrigerator is by cold Room and freezing chamber composition are hidden, wherein only there is a temperature sensor in refrigerating chamber, and is not had in freezing chamber.The advantages of this kind of refrigerator That electrical part is less, manufacturing cost and maintenance cost are relatively low, and defect, which is freezer temperature, to be accurately controlled, fluctuation range compared with Greatly.Mechanical frequency conversion refrigerator is typically also the start-stop that compressor is controlled by temperature of refrigerating chamber, and freezer temperature passes through refrigeration system Matching is maintained within a certain range.Compressor rotary speed can be adjusted according to compressor operating time and Homes Using TV, but in order to full The test limit value requirement of sufficient power consumption, inside be set as：When compressor available machine time, Homes Using TV are less than some value, press turns Speed can be down to the minimum value set by frequency conversion board, so that compressor operating power is minimum during energy consumption testing, energy Consumption optimizes.Mechanical frequency conversion list temperature control refrigerating full blast cold refrigerator, when environment temperature is relatively low, since the available machine time is short, opens Probability is low and compressor is caused to run at the low rotational speed for a long time.And the refrigerating capacity size of frequency-changeable compressor is into just with rotating speed height Ratio, the available machine time is short, inevitably results in this kind of refrigerator in addition refrigerating capacity is small and freezes when environment temperature is relatively low slowly, freezer temperature It is higher, temperature requirement is not achieved.

Invention content

In order to solve the above technical problems, the present invention provides a kind of frequency conversion controls of single temperature control wind cooling refrigerator by refrigeration temperature control Method processed, slow-speed of revolution requirement when can meet power consumption test, can also make when high and low environment temperature freezer temperature reach standard and want It asks.

Technical solution provided by the invention is：A kind of method for controlling frequency conversion of single temperature control wind cooling refrigerator by refrigeration temperature control, Include the following steps：

Step 1, set environment temperature range T is from low to high divided into T k temperature section T₁, T₂... T_k-1, T_k；

Step 2, compressor rotary speed gear N is set, k rotating speed gear N is divided within the scope of compressor given rotating speed₁, N₂... N_k-1, N_k；

Step 3, acquisition environment temperature T_h；

Step 4, it is as follows that maximum, the minimum limit value of different compressor rotary speed gears is corresponded under different environment temperature sections：

The beneficial effects of the present invention are introduce the factor of the environment temperature as control compressor rotary speed, can meet The slow-speed of revolution requirement for reducing power consumption can also make freezer temperature when high and low environment temperature reach standard requirement.

Specific implementation mode

Single temperature control wind cooling refrigerator according to the present invention by refrigeration temperature control includes refrigerating chamber and freezing chamber.It is refrigerating There is a temperature sensor in interior.There is air duct to be connected between refrigerating chamber and freezing chamber, there is an adjustable plectrum, sliding or rotation in air duct Plectrum can adjust the air volume for going to refrigerating chamber.Temperature in refrigerating chamber sensor controls the start-stop of frequency-changeable compressor, cold When hiding room temperature more than starting point, compressor starts work, freezing chamber starts to freeze, while cold wind enters refrigeration by air duct Room；After refrigerating chamber reaches set temperature, compressor shutdown, refrigerating chamber, freezing chamber all stop freezing.Compressor variable frequency controlling party Method includes the following steps：

Step 1, set environment temperature range T is from low to high divided into T k temperature section T₁, T_2,…T_K-1,T_k；

Step 2, compressor rotary speed gear N is set, k rotating speed gear N is divided within the scope of compressor given rotating speed₁, N₂... N_k-1, N_k；；

Step 3, acquisition environment temperature T_h；

Step 4, it is as follows that maximum, the minimum limit value of different compressor rotary speed gears is corresponded under different environment temperature sections：

It is verified by a large number of experiments, using such frequency conversion refrigerator of this method for controlling frequency conversion, chooses conjunction automatically by program Suitable rotating speed gear N_i, the slow-speed of revolution requirement for reducing power consumption can be met, can also make no matter to freeze under high and low environment temperature Room can fast cooling, meet needs.

The embodiment of the present invention is explained in detail above, but the present invention is not limited to above-described embodiments.In ability Domain those of ordinary skill within the scope of knowledge, can also make various changes without departing from the purpose of the present invention Change, comes under protection scope of the present invention.

Claims (1)

1. a kind of method for controlling frequency conversion of single temperature control wind cooling refrigerator by refrigeration temperature control, it is characterised in that：Include the following steps：

Step 1, set environment temperature range T is from low to high divided into T k temperature section T₁, T₂... T_k-1, T_k；

Step 2, compressor rotary speed gear N is set, k rotating speed gear N is divided within the scope of compressor given rotating speed₁, N₂... N_k-1, N_k；

Step 3, acquisition environment temperature T_h；

Step 4, it is as follows that maximum, the minimum limit value of different compressor rotary speed gears is corresponded under different environment temperature sections：

T_h≤T₁ T₁＜ T_h≤T₂ … T_k-1＜ T_h≤T_k T_k＜ T_h N_{min m} N_{min 1} N_{min 2} … N_{min k-1} N_{min k} N_{max m} N_{max 1} N_{max 2} … N_{max k-1} N_{max k}