Air conditioner smudginess degree detection device and air conditioner

Abstract

The utility model relates to the technical field of air conditioners, discloses an air conditioner smudginess degree detection device and an air conditioner, and aims at solving the problems that an existing air conditioner smudginess degree detection mode is poor in accuracy and high in cost. The ultraviolet light detection module comprises an ultraviolet light emitting unit used for emitting ultraviolet light to a detection part and an ultraviolet light receiving unit used for receiving the ultraviolet light reflected by the detection part and determining the intensity of the ultraviolet light, and the ultraviolet light emitting unit is arranged on one side of a position opposite to the detection part; the ultraviolet light receiving unit is arranged on the other side of the position opposite to the detection part, the ultraviolet light receiving unit is electrically connected with the control module, and the control module is configured to determine the smudginess degree of the detection part according to the intensity of ultraviolet light reflected by the detection part. The accuracy of dirt detection of the air conditioner is improved, the cost is reduced, and the method is particularly suitable for the air conditioner with a self-cleaning function.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, and in particular to an air conditioning dirtiness detection device and an air conditioner. Background Art

[0002] In order to better help users clean the heat exchanger and the air duct inside the air conditioner, the existing air conditioner generally provides a self-cleaning program. Users can turn on the air conditioner self-cleaning program as needed to automatically clean the air conditioner heat exchanger or other internal parts of the air conditioner. However, in actual use, the user does not know the dirty and blocked condition of the heat exchanger inside the air conditioner, and cannot accurately start the self-cleaning control. To solve this problem, it is proposed in the prior art to use the air conditioner running time, fan running power, image recognition technology and other methods to regularly and automatically judge whether the surface of the heat exchanger or other parts is dirty. However, depending on the different operating environments of the air conditioner, the internal dirtiness may not be consistent under the same running time. The fan running power is closely related to the filter, the heat exchanger grille, and the air circulation near the air inlet of the air conditioner. Therefore, the judgment result is not direct and accurate. In addition, the recognition equipment and technology required for the image recognition technology are proportional to its accuracy, which is costly and not feasible. Utility Model Content

[0003] The present application aims to propose an air conditioner dirtiness detection device and an air conditioner, so that after adding corresponding software methods, they can solve the problems of poor accuracy and high cost of existing air conditioner dirtiness detection methods.

[0004] The technical solution adopted by this application to solve the above technical problems is:

[0005] In a first aspect, the present application provides an air conditioner dirtiness detection device, the device comprising an ultraviolet light detection module and a control module, the ultraviolet light detection module comprising an ultraviolet light emitting unit for emitting ultraviolet light to a detection site and an ultraviolet light receiving unit for receiving ultraviolet light reflected by the detection site and determining its intensity, the ultraviolet light emitting unit being arranged on one side directly opposite to the detection site, the ultraviolet light receiving unit being arranged on the other side directly opposite to the detection site, the ultraviolet light receiving unit being electrically connected to the control module, and the control module being configured to determine the dirtiness of the detection site according to the intensity of the ultraviolet light reflected by the detection site.

[0006] Furthermore, the ultraviolet light emitting unit is a lamp bead that can emit ultraviolet light.

[0007] Furthermore, the wavelength range of the ultraviolet light emitted by the ultraviolet light emitting unit is 240-280 nm.

[0008] Furthermore, the detection location is an indoor heat exchanger, an outdoor heat exchanger, an inner wall of an air duct or an air inlet grille of the air conditioner.

[0009] Furthermore, the ultraviolet light detection module includes a plurality of ultraviolet light emitting units and an ultraviolet light receiving unit, wherein the plurality of ultraviolet light emitting units are evenly distributed on one side facing the detection portion, and an ultraviolet light receiving unit is arranged on the other side facing the detection portion.

[0010] Furthermore, there are multiple ultraviolet light detection modules, which are evenly distributed and arranged at positions directly opposite to the detection part, and each ultraviolet light detection module includes an ultraviolet light emitting unit and an ultraviolet light receiving unit which are adjacently arranged.

[0011] Furthermore, there are multiple ultraviolet light detection modules and detection parts, and the ultraviolet light detection modules are arranged in a one-to-one correspondence with the detection parts. The control module is also configured to determine the air conditioner dirtiness according to the dirtiness of each detection part.

[0012] In a second aspect, the present application further provides an air conditioner, comprising the air conditioner dirtiness detection device as described in the first aspect.

[0013] The beneficial effects of the present application are as follows: the air conditioner dirtiness detection device and air conditioner provided by the present application, by setting a corresponding ultraviolet light detection module at the detection part of the air conditioner, wherein the ultraviolet light emitting unit emits ultraviolet light to the detection part of the air conditioner, the ultraviolet light receiving unit receives the ultraviolet light reflected from the detection part and determines its intensity, and the control module determines the ultraviolet light attenuation coefficient according to the intensity of the ultraviolet light reflected from the detection part after applying the corresponding software method, thereby determining the degree of dirtiness of the detection part. The present application realizes the detection of dirtiness by utilizing the principle that the reflection intensity of ultraviolet light on smooth surfaces and rough surfaces is different, thereby improving the accuracy of air conditioner dirtiness detection, and has a simple structure, is easy to implement, and has a low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the structure of an air conditioner dirtiness detection device provided in an embodiment of the present application;

[0015] Figure 2 A schematic diagram of the position of a first type of ultraviolet light detection module for detecting the dirtiness of a heat exchanger provided in an embodiment of the present application;

[0016] Figure 3 A schematic diagram of the position of a second type of ultraviolet light detection module for detecting dirtiness of a heat exchanger provided in an embodiment of the present application;

[0017] Figure 4 A schematic diagram of the position of a third type of ultraviolet light detection module for detecting dirtiness of a heat exchanger provided in an embodiment of the present application;

[0018] Figure 5A schematic diagram of the position of an ultraviolet light detection module for detecting dirtiness of a heat exchanger and an air inlet grille provided in an embodiment of the present application. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0020] The technical solution of the embodiment of the present application is applicable to application scenarios where the dirtiness of an air conditioner needs to be detected, for example, application scenarios where an air conditioner self-cleaning program needs to be automatically executed based on the air conditioner dirtiness detection result.

[0021] At present, the detection method of air conditioner dirtiness is basically to detect dirtiness based on air conditioner operation time, fan operation power or image recognition technology. Among them, the method of detecting dirtiness based on air conditioner operation time is mainly to determine that the air conditioner dirtiness is high when the air conditioner operation time exceeds the preset time. However, due to the different operating environments of air conditioners, the internal dirtiness may not be consistent under the same operation time, so this method has low accuracy. The method of detecting dirtiness based on fan operation power is mainly to determine that the air conditioner dirtiness is high when the fan operation power exceeds the preset power. However, since the fan operation power is not only affected by the dirtiness, but also by the filter, heat exchanger grille, and the air circulation degree near the air inlet of the air conditioner, this method is also low in accuracy. Image recognition technology mainly obtains images of the detection part and performs image recognition to determine the dirtiness of the air conditioner. The recognition equipment and technology required for this method are proportional to its accuracy, the cost is high, and the feasibility is not strong.

[0022] Based on this, the technical solution of the present application is proposed. In an embodiment of the present application, an air conditioner dirtiness detection device includes an ultraviolet light detection module and a control module. The ultraviolet light detection module includes an ultraviolet light emitting unit for emitting ultraviolet light to a detection site and an ultraviolet light receiving unit for receiving ultraviolet light reflected by the detection site and determining its intensity. The ultraviolet light emitting unit is arranged on one side directly opposite to the detection site, and the ultraviolet light receiving unit is arranged on the other side directly opposite to the detection site. The ultraviolet light receiving unit is electrically connected to the control module, and the control module is configured to determine the dirtiness of the detection site according to the intensity of the ultraviolet light reflected by the detection site.

[0023] Specifically, the embodiment of the present application sets an ultraviolet light detection module at the detection part of the air conditioner, wherein the ultraviolet light emitting unit is set on one side of the detection part, and emits ultraviolet light of a preset intensity to the detection part when working, and the ultraviolet light receiving unit is set on the other side of the detection part, and receives the ultraviolet light reflected by the detection part and determines its intensity when working. Since the ultraviolet light will cause intensity attenuation after being reflected by the detection part, and the smoother the detection part is, the smaller the attenuation coefficient of the ultraviolet light reflected by it is, and the dirtier (rougher) the detection part is, the larger the attenuation coefficient of the ultraviolet light reflected by it is. Based on this, after the embodiment of the present application applies the corresponding software method, the control module can determine the dirtiness of the detection part according to the intensity of the ultraviolet light reflected by the detection part, that is, the greater the intensity of the ultraviolet light reflected by the detection part, the lower the dirtiness, and vice versa, thereby realizing accurate detection of the dirtiness, and the structure is simple, easy to implement, and low cost.

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0025] See also Figure 1 The air conditioner dirtiness detection device provided in the embodiment of the present application includes an ultraviolet light detection module and a control module. The ultraviolet light detection module includes an ultraviolet light emitting unit for emitting ultraviolet light to a detection part and an ultraviolet light receiving unit for receiving ultraviolet light reflected by the detection part and determining its intensity. The ultraviolet light emitting unit is arranged on one side of a position directly opposite to the detection part, and the ultraviolet light receiving unit is arranged on the other side of a position directly opposite to the detection part. The ultraviolet light receiving unit is electrically connected to the control module, and the control module is configured to determine the dirtiness of the detection part according to the intensity of the ultraviolet light reflected by the detection part.

[0026] In the embodiment of the present application, the ultraviolet light emitting unit is a lamp bead that can emit ultraviolet light. The control module is an MCU, i.e., a microprocessor controller, but is not limited thereto. The control module can also be a central processing unit or other processor with processing and computing functions.

[0027] In actual application, the ultraviolet detection module first needs to be installed on the corresponding detection part of the air conditioner, which can be the indoor heat exchanger, outdoor heat exchanger, inner wall of the air duct or air inlet grille of the air conditioner.

[0028] In one embodiment of the present application, the ultraviolet light detection module includes an ultraviolet light emitting unit and an ultraviolet light receiving unit. The ultraviolet light emitting unit is arranged on the left side of the position directly opposite to the detection part, and the ultraviolet light receiving unit is arranged on the right side of the position directly opposite to the detection part. The ultraviolet light emitting unit and the ultraviolet light receiving unit are arranged symmetrically.

[0029] Figure 2 The schematic diagram of the position of the ultraviolet light detection module for the first type of heat exchanger dirtiness detection is shown, wherein the ultraviolet light emitting unit is arranged on the left side of the heat exchanger directly facing the position, and the ultraviolet light receiving unit is arranged on the right side of the heat exchanger directly facing the position, and the ultraviolet light emitting unit and the ultraviolet light receiving unit are arranged symmetrically. When the ultraviolet light detection module is working, the ultraviolet light emitting unit emits ultraviolet light to the heat exchanger, the ultraviolet light receiving unit receives the ultraviolet light reflected by the heat exchanger and determines its intensity, and then sends the intensity of the ultraviolet light reflected by the heat exchanger to the control module.

[0030] In another embodiment of the present application, the ultraviolet light detection module includes multiple ultraviolet light emitting units and one ultraviolet light receiving unit, the multiple ultraviolet light emitting units are evenly distributed on one side facing the detection part, and one ultraviolet light receiving unit is arranged on the other side facing the detection part.

[0031] Figure 3 The schematic diagram of the position of the second type of ultraviolet light detection module for detecting the dirtiness of the heat exchanger is shown, wherein a plurality of ultraviolet light emitting units are evenly distributed and arranged on the left side facing the heat exchanger, and a ultraviolet light receiving unit is arranged on the right side facing the heat exchanger. When the ultraviolet light detection module is working, the plurality of ultraviolet light emitting units respectively emit ultraviolet light to a plurality of points of the heat exchanger, the ultraviolet light receiving unit receives the ultraviolet light reflected by each point of the heat exchanger and determines its intensity, and then sends the intensity of the ultraviolet light reflected by the heat exchanger to the control module.

[0032] In another embodiment of the present application, there are multiple ultraviolet light detection modules, and the multiple ultraviolet light detection modules are evenly distributed and arranged at positions directly opposite to the detection part. Each ultraviolet light detection module includes an ultraviolet light emitting unit and an ultraviolet light receiving unit that are adjacent to each other.

[0033] Figure 4 The schematic diagram of the position of the ultraviolet light detection module for the third type of heat exchanger dirtiness detection is shown, wherein a plurality of ultraviolet light detection modules are evenly distributed and arranged at the opposite position of the heat exchanger. When the ultraviolet light detection module is working, each ultraviolet light emitting unit emits ultraviolet light to the corresponding point of the heat exchanger, and the corresponding ultraviolet light receiving unit receives the ultraviolet light reflected by the corresponding point of the heat exchanger and determines its intensity, and each ultraviolet light receiving unit sends the intensity of the ultraviolet light reflected by each point of the heat exchanger to the control module.

[0034] In the embodiment of the present application, the corresponding relationship between the intensity of ultraviolet light and the degree of dirtiness can be preset in the control module, and the corresponding relationship can be obtained by testing the air conditioner prototype. After applying the corresponding software method, the control module determines the degree of dirtiness of the detection part according to the intensity of ultraviolet light reflected by the detection part and based on the preset corresponding relationship, that is, the greater the intensity of ultraviolet light reflected by the detection part, the lower the degree of dirtiness, and vice versa.

[0035] In the embodiment of the present application, the ultraviolet light emitting unit emits a wavelength of 240 to 280 nm to the detection site, and the preset intensity is 100 to 200 μW / cm 2 Ultraviolet light in the wavelength range of 240 to 280 nm has a bactericidal and purifying effect, which can purify and sterilize the detection area and further improve the internal cleanliness.

[0036] In another embodiment of the present application, there are multiple ultraviolet light detection modules and detection parts, and the ultraviolet light detection modules are arranged in a one-to-one correspondence with the detection parts. The control module is also configured to determine the air conditioner dirtiness according to the dirtiness of each detection part.

[0037] In actual application, corresponding ultraviolet detection modules can be respectively arranged at multiple detection positions of the air conditioner, for example, ultraviolet detection modules can be respectively installed at positions such as the indoor heat exchanger, outdoor heat exchanger, inner wall of the air duct or air inlet grille of the air conditioner. Figure 5 A schematic diagram of the positions of ultraviolet light detection modules for detecting the dirtiness of a heat exchanger and an air inlet grille is shown, wherein one ultraviolet light detection module is arranged at a position directly opposite the heat exchanger for detecting dirtiness of the heat exchanger, and another ultraviolet light detection module is arranged at a position directly opposite the air inlet grille for detecting dirtiness of the air inlet grille.

[0038] After applying the corresponding software method, the control module comprehensively determines the degree of dirtiness of the air conditioner according to the intensity of the ultraviolet light reflected by the corresponding detection part detected by each ultraviolet light detection module. For example, after applying the corresponding software method, the control module can determine the number of detection parts whose degree of dirtiness is greater than the preset degree of dirtiness. If the number exceeds the preset number, the degree of dirtiness of the air conditioner is determined to be high. If the number does not exceed the preset number, the degree of dirtiness of the air conditioner is determined to be low. For another example, after applying the corresponding software method, the control module can also calculate the weighted average of the degrees of dirtiness of all detection parts and use it as the degree of dirtiness of the air conditioner. If the weighted average is greater than the preset degree of dirtiness, the degree of dirtiness of the air conditioner is determined to be high. If the weighted average is not greater than the preset degree of dirtiness, the degree of dirtiness of the air conditioner is determined to be low.

[0039] In summary, the air conditioner dirtiness detection device provided in the embodiment of the present application is provided with a corresponding ultraviolet light detection module at the detection part of the air conditioner, wherein the ultraviolet light emitting unit emits ultraviolet light to the detection part of the air conditioner, and the ultraviolet light receiving unit receives the ultraviolet light reflected by the detection part and determines its intensity. After applying the corresponding software method, the control module determines the ultraviolet light attenuation coefficient according to the intensity of the ultraviolet light reflected by the detection part, thereby determining the degree of dirtiness of the detection part. The present application realizes the detection of dirtiness by utilizing the principle that smooth surfaces and rough surfaces have different reflection intensities of ultraviolet light, thereby improving the accuracy of air conditioner dirtiness detection, and has a simple structure, is easy to implement, and has low cost. In addition, dirtiness detection is performed on multiple detection parts of the air conditioner, and the dirtiness of the air conditioner is comprehensively judged based on the detection results, thereby further improving the accuracy of air conditioner dirtiness detection.

[0040] Based on the above technical solution, an embodiment of the present application also provides an air conditioner, including the air conditioner dirtiness detection device described in the embodiment of the present application.

[0041] It can be understood that since the air conditioner described in the embodiment of the present application includes the air conditioner dirtiness detection device described in the embodiment of the present application, for the air conditioner disclosed in the embodiment, since it corresponds to the device disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the device.

[0042] It should be noted that the present application only provides an air-conditioning dirtiness detection device and a specific structure of an air-conditioning, wherein the related modules involved are all hardware system modules or functional modules that combine computer software programs or protocols with hardware in the prior art. The computer software programs or protocols involved in the functional modules are themselves technologies that are well known to those skilled in the art, and they are not improvements of the present system, and will not be elaborated here. The improvement of the present system is the interaction relationship or connection relationship between the modules, that is, to improve the overall structure of the system in order to solve the corresponding technical problems to be solved by the present system.

Claims

1. An air conditioner dirtiness detection device, characterized in that: The device includes an ultraviolet light detection module and a control module. The ultraviolet light detection module includes an ultraviolet light emitting unit for emitting ultraviolet light to a detection site and an ultraviolet light receiving unit for receiving ultraviolet light reflected by the detection site and determining its intensity. The ultraviolet light emitting unit is arranged on one side of a position directly opposite to the detection site, and the ultraviolet light receiving unit is arranged on the other side of a position directly opposite to the detection site. The ultraviolet light receiving unit is electrically connected to the control module, and the control module is configured to determine the degree of dirtiness of the detection site according to the intensity of the ultraviolet light reflected by the detection site.

2. The air conditioner dirtiness detection device according to claim 1, characterized in that: The ultraviolet light emitting unit is a lamp bead that can emit ultraviolet light.

3. The air conditioner dirtiness detection device according to claim 1 or 2, characterized in that: The wavelength range of the ultraviolet light emitted by the ultraviolet light emitting unit is 240-280nm.

4. The air conditioner dirtiness detection device according to claim 1, characterized in that: The detection location is an indoor unit heat exchanger, an outdoor unit heat exchanger, an inner wall of an air duct or an air inlet grille of the air conditioner.

5. The air conditioner dirtiness detection device according to claim 1, characterized in that: The ultraviolet light detection module includes a plurality of ultraviolet light emitting units and an ultraviolet light receiving unit. The plurality of ultraviolet light emitting units are evenly distributed on one side facing the detection part, and an ultraviolet light receiving unit is arranged on the other side facing the detection part.

6. The air conditioner dirtiness detection device according to claim 1, characterized in that: There are multiple ultraviolet light detection modules, which are evenly distributed and arranged at positions directly opposite to the detection part. Each ultraviolet light detection module includes an ultraviolet light emitting unit and an ultraviolet light receiving unit which are adjacently arranged.

7. The air conditioner dirtiness detection device according to claim 1, characterized in that: There are multiple ultraviolet light detection modules and detection locations, and the ultraviolet light detection modules are arranged in a one-to-one correspondence with the detection locations. The control module is also configured to determine the degree of dirtiness of the air conditioner according to the degree of dirtiness of each detection location.

8. An air conditioner, characterized in that: The air conditioner includes the air conditioner dirtiness detection device according to any one of claims 1 to 7.

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