A cleaning tip for air conditioner air inlets

Abstract

A method for prompting cleaning of an air conditioner inlet involves simulating a blockage inlet before the air conditioner leaves the factory, and obtaining a preset target cleaning speed n2 for the air conditioning system under these conditions. Then, when the air conditioning system selects the cleaning detection mode, the system determines whether the air inlet needs cleaning based on the relationship between the target cleaning speed n2 and the actual speed n1. The method is simple to operate, accurate, and reliable, requiring no additional detection circuits or devices, and achieves the detection of the degree of dust accumulation in the air inlet without increasing costs.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, in particular to a cleaning prompting method for an air conditioner air inlet. BACKGROUND

[0002] Generally, after long-term use, the filter screen or evaporator of the air conditioner air inlet will have dust accumulation, which reduces the air outlet volume of the air conditioner and reduces the heat exchange effect of the air conditioner. The traditional method for detecting dust accumulation is to manually disassemble the fan housing to detect the filter screen. Currently, there are methods for automatically detecting dust accumulation in air conditioners, which add detection devices or detection circuits to detect dust accumulation. Referring to the cleaning prompting method disclosed in Chinese patent CN115076902A Filter screen cleaning prompting method, device and air conditioner, a second acquisition module is added, which complicates the internal structure of the air conditioner and increases the manufacturing cost of the air conditioner. SUMMARY

[0003] In view of the deficiencies of the prior art, the purpose of the present application is to provide a cleaning prompting method for an air conditioner air inlet, which detects the dust accumulation degree of the air inlet without increasing detection devices.

[0004] To achieve the above-mentioned purpose, the present application provides a cleaning prompting method for an air conditioner air inlet, comprising the following steps:

[0005] Step a1, during air conditioner operation, the air conditioner system selects to run in a cleaning detection mode, then the air conditioner system adjusts the motor speed to the cleaning target speed n2 preset by the air conditioner system, and the air conditioner system detects the current motor speed and records it as the actual speed n1;

[0006] Step a2, compare the actual speed n1 with the cleaning target speed n2, if n1 >= k*n2, it is determined that the air inlet needs to be cleaned; if n1 < k*n2, it is determined that the air inlet does not need to be cleaned;

[0007] The method for obtaining the cleaning target speed n2 is as follows: before the air conditioner is shipped and the air inlet is clean, use a cover to cover the air inlet of the air conditioner, then adjust the motor speed to be greater than the highest design speed nD preset by the air conditioner, and then detect the motor speed in real time until the highest stable speed of the motor is measured, and record the highest stable speed as the cleaning target speed n2; the highest design speed nD is the highest speed at which the motor can run when the air inlet is clean; the value of k is in the range of 1 >= k > highest design speed nD / cleaning target speed n2.

[0008] Further, during the acquisition of the cleaning target speed n2, first adjust the air outlet opening angle of the air conditioner to adjust the opening of the air outlet to the maximum.

[0009] Further, after the air conditioning system runs the cleaning detection mode, the opening of the air outlet is adjusted to the maximum by adjusting the air swing angle of the air outlet.

[0010] Further, in step a2, when it is judged that the air inlet needs cleaning, the air conditioning system gives a cleaning prompt.

[0011] Further, the cleaning prompt method of the air conditioning system is to set a prompt lamp, and the prompt lamp is long or flickering to prompt the user to clean.

[0012] Further, in step a2, when it is judged that the air inlet does not need cleaning, the air conditioning system exits the cleaning detection mode.

[0013] Further, in the process of obtaining the cleaning target speed n2, the air inlet of the air conditioner is shielded by a shield, and the shielding rate of the air inlet is 100%, that is, the air inlet is completely shielded.

[0014] The beneficial effects of the present application are: before the air conditioner is shipped and the air inlet is clean, the blockage of the air inlet is simulated and the preset cleaning target speed n2 required by the air conditioning system is obtained under the condition, then when the air conditioning system selects to run the cleaning detection mode, the air conditioning system judges whether the air inlet needs to be cleaned according to the size relationship between the cleaning target speed n2 and the actual speed n1, which is simple to operate, reliable in precision, does not need to increase new detection circuit or detection device, and realizes the detection of the dust accumulation degree of the air inlet without increasing the cost. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the cleaning prompt method.

[0016] Figure 2 It is a specific flow chart of the cleaning prompt method. EMBODIMENT

[0017] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be realized in many different forms and is not limited to the embodiments described herein. The purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0018] REFERENCE Figure 1 In the present embodiment, a cleaning prompt method for air inlet of air conditioner, comprising the following steps:

[0019] Step a1, when the air conditioner is running, the user selects the cleaning detection mode through the remote control, then the air conditioner adjusts the opening of the air outlet to the maximum by adjusting the swing angle of the air outlet, and then adjusts the motor speed to the cleaning target speed n2 preset by the air conditioner, finally, the air conditioner detects the current motor speed and records it as the actual speed n1.

[0020] Step a2, compare the actual speed n1 with the cleaning target speed n2, if n1≥k*n2, it is judged that the air inlet needs to be cleaned, at this time, the air conditioner gives a cleaning prompt, wherein the cleaning prompt of the air conditioner is to set a prompt light, and the prompt light is long or flashing to prompt the user to clean; if n1

[0021] In this embodiment, the method for obtaining the cleaning target speed n2 is as follows: before the air conditioner is shipped and the air inlet is clean, first adjust the opening of the air outlet to the maximum by adjusting the swing angle of the air outlet (ensure that the conditions are consistent except the motor load when the air conditioner selects the cleaning detection mode), then use a cover to cover the air inlet of the air conditioner to simulate the blockage of the air inlet of the air conditioner, then adjust the motor speed to be greater than the highest design speed nD preset by the air conditioner, then detect the motor speed in real time, and record the highest stable speed of the motor as the cleaning target speed n2 after the highest stable speed of the motor is measured. The highest design speed nD of this embodiment is the highest speed at which the motor can run when the air inlet is clean. In the prior art, the air conditioner system is preset with three motor speeds, which are: daily speed nN for normal use by the user, test speed nT for testing the stability of the air conditioner, and highest design speed nD, wherein daily speed nN

[0022] The value range of k in this embodiment is 1≥k>the highest design speed nD / cleaning target speed n2.

[0023] In the process of obtaining the cleaning target speed n2, this embodiment uses multiple shielding rates to shield the air inlet to different degrees, wherein the shielding rate is divided into 20%, 40%, 60%, 80% and 100%, which respectively simulates that the air inlet is blocked by 20%, 40%, 60%, 80% and 100% dust, then the motor speed is adjusted to be greater than the highest design speed nD preset by the air conditioner, then the motor speed is detected in real time, and the highest stable speed of the motor is recorded as the simulation speed nS after the highest stable speed of the motor is measured. Record the simulation speed nS corresponding to different shielding rates, and use the simulation speed nS corresponding to 100% shielding rate as the cleaning target speed n2, as shown in the following table.

[0024] Inlet air masking rate Simulated rotation speed nS Simulated rotation speed nS / cleaning target rotation speed n2 Air conditioner cleaning prompt 0% nD: 1348 94% No 20% 1360 95% No 40% 1370 95% No 60% 1384 96% No 80% 1408 98% Yes 100% 1436 100% Yes

[0025] From the table, the higher the shielding rate, the greater the simulated speed nS. The method for obtaining the cleaning target speed n2 is further described in combination with the table: because the air inlet is shielded, the air outlet volume of the air outlet is reduced, the load of the motor is reduced, and the upper limit of the motor speed can be increased from the highest design speed nD. The higher the shielding rate, the smaller the load of the motor, and the higher the upper limit of the motor speed. When the motor speed measured by the air conditioning system no longer increases and tends to be stable, that is, when the highest stable speed of the measured motor speed is measured, the motor speed is recorded as the simulated speed nS. Finally, the simulated speed nS corresponding to the 100% shielding rate is used as the cleaning target speed n2, and the simulated speed nS measured when the air inlet is completely shielded is used as the cleaning target speed n2. In addition, referring to the table, the value range of k is 1≥k>the highest design speed nD / cleaning target speed n2. Specifically, the value of k in this embodiment is 98%, so that the cleaning of the air inlet is more timely.

[0026] Further, the cleaning prompting method of this embodiment is described below in combination with the table and the conclusions drawn from the table.

[0027] Referring to Figure 2 In step a1, when the air conditioning system adjusts the motor speed to the cleaning target speed n2 preset by the air conditioning system, if the air inlet is currently 100% blocked by dust, the current load of the motor is consistent with the load of the motor when the cleaning target speed n2 is measured before the air conditioning is factory-finished and the air inlet is clean, so that the current motor speed is maintained at the cleaning target speed n2, that is, the measured actual speed n1=the cleaning target speed n2, and the air inlet needs to be cleaned at this time.

[0028] Referring to Figure 2 In step a1, when the air conditioning system adjusts the motor speed to the cleaning target speed n2 preset by the air conditioning system, if the air inlet is currently 80% blocked by dust, the current load of the motor is greater than the load of the motor when the cleaning target speed n2 is measured before the air conditioning is factory-finished and the air inlet is clean, so that the motor speed decreases from the cleaning target speed n2 to k*n2 after the motor speed is adjusted to the cleaning target speed n2, that is, the measured actual speed n1=the cleaning target speed n2*98%, and the air inlet needs to be cleaned at this time.

[0029] Referring to Figure 2 In step a1, when the air conditioning system adjusts the motor speed to the cleaning target speed n2 preset by the air conditioning system, if the air inlet is currently 60% blocked by dust, the current load of the motor is greater than the load of the motor when the cleaning target speed n2 is measured before the air conditioning is factory-finished and the air inlet is clean, so that the motor speed decreases from the cleaning target speed n2 to less than k*n2 after the motor speed is adjusted to the cleaning target speed n2, that is, the measured actual speed n1<the cleaning target speed n2*98%, and the air inlet does not need to be cleaned at this time.

[0030] The cleaning prompting method of the embodiment has the advantages of simulating the blockage of the air inlet, obtaining the preset cleaning target rotating speed n2 of the air conditioning system under the condition, and judging whether the air inlet needs to be cleaned according to the size relationship between the cleaning target rotating speed n2 and the actual rotating speed n1 when the air conditioning system runs in the cleaning detection mode, so that the air conditioning system is simple to operate, reliable in precision, does not need to increase new detection circuits or detection devices, and realizes the detection of the dust accumulation degree of the air inlet without increasing the cost.

[0031] The air conditioner of the embodiment is an air conditioner using a PG motor or a direct current motor.

[0032] In the embodiment, the above motors are all fan motors of the air conditioner.

[0033] The above-described embodiments are merely preferred embodiments of the present application, and do not limit the present application in any form. Any skilled person in the art, without departing from the technical solution of the present application, can make more possible changes and decorations, or modifications to the technical solution of the present application by using the disclosed technical content, which are all equivalent embodiments of the present application. Therefore, any equivalent changes made according to the idea of the present application, without departing from the technical solution of the present application, should be covered in the protection scope of the present application.

Claims

1. A method of providing a cleaning cue for an air conditioner inlet, the method comprising: Comprise the following steps: ​ Step a1, when the air conditioner is running, the air conditioning system selects to run the cleaning detection mode, then the air conditioning system adjusts the motor speed to the cleaning target speed n2 preset by the air conditioning system, the air conditioning system detects the current motor speed and records it as the actual speed n1; Step a2, compare the actual speed n1 with the cleaning target speed n2, if n1≥k*n2, it is judged that the air inlet needs cleaning; if n1 The method for obtaining the cleaning target speed n2 is: before the air conditioner leaves the factory and the air inlet is clean, the air inlet of the air conditioner is shielded by a shielding object, then the motor speed is adjusted to be greater than the highest design speed nD preset by the air conditioner, the motor speed is detected in real time until the highest stable speed of the motor is measured, and the highest stable speed is recorded as the cleaning target speed n2; the highest design speed nD is the highest speed at which the motor can run when the air inlet is clean; the value range of k is 1≥k>nD / cleaning target speed n2.

2. The method of claim 1, wherein the method further comprises: determining whether the air conditioner is in operation; and if the air conditioner is in operation, displaying the cleaning prompt message on the display unit. In the process of obtaining the cleaning target speed n2, the opening of the air outlet is adjusted to be maximum by adjusting the air swing angle of the air outlet of the air conditioner.

3. The method of claim 1, wherein the method further comprises: determining whether the air conditioner is in operation; and displaying the cleaning prompt message on the display unit only when the air conditioner is in operation. After the air conditioning system runs the cleaning detection mode, the opening of the air outlet is adjusted to be maximum by adjusting the air swing angle of the air outlet of the air conditioner.

4. The method of claim 1, wherein the method further comprises: displaying a cleaning prompt on the display of the air conditioner when the air filter is determined to be dirty. In step a2, when it is judged that the air inlet needs cleaning, the air conditioning system performs cleaning prompting.

5. The method of claim 4, wherein the method further comprises: displaying a cleaning prompt on the display of the air conditioner when the air flow rate is less than the predetermined air flow rate. The air conditioning system cleaning prompting mode is to set a prompt lamp, and the prompt lamp is long or flashing to prompt the user to clean.

6. The method of claim 1, wherein the method further comprises: In step a2, when it is judged that the air inlet does not need cleaning, the air conditioning system exits the cleaning detection mode.

7. The method of claim 1, wherein the method further comprises: displaying a cleaning prompt on the display of the air conditioner when the air filter is determined to be dirty. In the process of obtaining the cleaning target speed n2, when the air inlet of the air conditioner is shielded by a shielding object, the shielding rate of the air inlet is 100%, that is, the air inlet is completely shielded.

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