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Outdoor environment temperature detecting and correcting method for variable-frequency air conditioner

A variable frequency air conditioner and outer ring temperature technology, applied in refrigeration safety arrangements, refrigeration components, refrigerators, etc., can solve problems such as poor air conditioning refrigeration effect and large reduction in compressor operating frequency, avoiding false corrections and improving accuracy. Reliability, the effect of ensuring accuracy and reliability

Active Publication Date: 2019-01-04
AUX AIR CONDITIONING LTD BY SHARE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the defects existing in the prior art, the object of the present invention is to provide a method for detecting and correcting the temperature of the outer ring of an inverter air conditioner, by correcting the outdoor ambient temperature detected by the sensor, in order to solve the problems existing in the cooling mode of the air conditioner The outdoor ambient temperature detected by the sensor is higher than the actual outdoor ambient temperature, thereby avoiding the occurrence of excessive drop in compressor operating frequency and poor cooling effect of the air conditioner

Method used

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Embodiment 1

[0048] as attached figure 1 As shown, a method for detecting and correcting the temperature of the outer ring of an inverter air conditioner includes:

[0049] S1. Turn on the air conditioner and run in cooling mode;

[0050] S2. The air conditioner detects the outdoor ambient temperature T10 and the coil temperature T20 in the middle of the condenser when the air conditioner is turned on, and judges whether the correction opening condition is met. If yes, proceed to step S3. If not, the outdoor ambient temperature T1 is not corrected;

[0051] S3. After the air conditioner runs continuously for the first rated time t1, detect the outdoor ambient temperature T11 in real time;

[0052] S4. Based on the second rated temperature difference B, it is judged whether T11-T10≥B is satisfied, and if it is satisfied, T1 is corrected; if it is not satisfied, T1 is not corrected.

[0053] In this embodiment, the air conditioner detects the outdoor ambient temperature T10 and the coil te...

Embodiment 2

[0057] as attached figure 2 As shown, a method for detecting and correcting the temperature of the outer ring of an inverter air conditioner includes:

[0058] S1. Turn on the air conditioner and run in cooling mode;

[0059] S2. The air conditioner detects the outdoor ambient temperature T10 and the coil temperature T20 in the middle of the condenser when it is turned on;

[0060] S3. Based on the rated lower limit temperature T3 and the rated upper limit temperature T4, judge whether T3≤T10≤T4 is satisfied, if satisfied, proceed to step S4, and if not, do not correct T1;

[0061] S4. Based on the first rated temperature difference A, determine whether 丨T10-T20丨≤A is satisfied, if so, proceed to step S5, and if not, do not correct T1;

[0062] S5. After the air conditioner runs continuously for the first rated time t1, detect the outdoor ambient temperature T11 in real time;

[0063] S6. Based on the second rated temperature difference B, determine whether T11-T10≥B is sa...

Embodiment 3

[0074] In order to supplement the description of the method for detecting and correcting the temperature of the outer ring of the frequency conversion air conditioner in the present invention, as shown in the attached Figure 4 As shown, on the basis of Embodiment 1 and Embodiment 2, this embodiment proposes a method for exiting temperature correction after temperature correction, including:

[0075] M1, the air conditioner corrects the outdoor ambient temperature T1;

[0076] M2. The air conditioner judges whether the artificial condition is satisfied, if it is satisfied, exit the correction, if not, proceed to step M3;

[0077] M3. During the second rated time t2, the air conditioner continuously detects T1;

[0078] M4. Based on the rated lower limit temperature T3, judge whether T1<T3 is satisfied, if satisfied, exit the correction, if not, return to step M2.

[0079] The artificial condition includes at least one judging condition of whether to shut down the machine and...

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Abstract

The invention provides an outdoor environment temperature detecting and correcting method for a variable-frequency air conditioner. The method comprises the following steps of step 1, starting the airconditioner and making the air conditioner operate in a refrigerating mode; step 2,detecting an outdoor environment temperature T10 and an condenser middle coil temperature T20 through the air conditioner when the air conditioner is started, judging whether the correction starting condition is met or not, if yes, carrying out step 3, and if not, not correcting an outdoor environment temperature T1; step 3,after the air conditioner continuously running first rated time t1, detecting an outdoor environment temperature T11 in real time; and step 4, taking second rated temperature difference B asa benchmark, judging that whether the T11 minus the T10 is larger than or equal to the B, if yes, correcting the T1, and if not, not correcting the T1. According to the method, the outdoor environment temperature detected by the air conditioner can be corrected efficiently and accurately, so that the situation that the refrigeration effect of the air conditioner is bad caused by the fact the highest frequency allowed to operate of a compressor is excessively reduced due to the too high outdoor environment temperature detected by the air conditioner is avoid.

Description

technical field [0001] The invention relates to a method for detecting and correcting the temperature of an outer ring of an inverter air conditioner. Background technique [0002] With the continuous development of household appliance technology, more and more household appliances have entered people's daily life and work. However, due to the different application environments and conditions, there will be many corresponding problems in the application process of household appliances. Taking the inverter air conditioner as an example, the outdoor ambient temperature sensor of the inverter split air conditioner is generally installed on the condenser. Because the sensor is close to the condenser, it is easily affected by the heat radiation of the condenser in the cooling mode. Especially under the condition of high outdoor ambient temperature, the influence is very obvious, which causes the outdoor ambient temperature detected by the sensor to be much higher than the actual ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B49/02
CPCF25B49/027F25B2700/2106F25B2700/2116
Inventor 颜景旭应必业
Owner AUX AIR CONDITIONING LTD BY SHARE LTD
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