Knotting clearing system for evaporator

Abstract

The utility model discloses an evaporator cleaning system which comprises a vertically-arranged evaporator, and the evaporator comprises an evaporator heat exchange pipe. Comprising a spraying pipe used for spraying water to an evaporator, and one end of the spraying pipe is connected with an electromagnetic valve used for controlling on-off of the spraying pipe; comprising a control system, the control system comprises a visual identification system, the visual identification system comprises a camera used for shooting the evaporator, and the control system is in control connection with an electromagnetic valve. The evaporator cleaning system is beneficial to normal operation of the evaporator.

Description

Technical Field

[0001] This utility model relates to the field of pet drying boxes, specifically to an evaporator cleaning system. Background Technology

[0002] Currently, pet drying boxes are used to dry pets' fur, such as the "A Pet Fur Care Dryer" in Chinese Invention Patent Application Publication No. CN118923556A. Some pet drying boxes are equipped with refrigeration systems, such as the "A Highly Energy-Efficient Pet Drying Box" in Chinese Utility Model Patent Publication No. CN216219484U. The refrigeration system includes an evaporator. A circulating fan circulates the humid air inside the pet drying box through the evaporator, causing the moisture in the airflow to condense into water droplets on the evaporator, thereby reducing the humidity inside the pet drying box (i.e., achieving a dehumidification effect). However, pet hair is inevitable. As the circulating airflow moves, it carries hair, and after a period of use, a large amount of pet hair accumulates on the evaporator, including on the outer wall of the evaporator's heat exchange tubes. This significantly affects the heat exchange between the circulating airflow and the evaporator, impacting the dehumidification effect and hindering the normal operation of the evaporator. Therefore, it is necessary to include facilities for cleaning the hair. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an evaporator cleaning system that facilitates the normal operation of the evaporator.

[0004] The objective of this utility model is achieved through the following technical solution.

[0005] The evaporator cleaning system disclosed in this utility model includes an evaporator installed vertically, the evaporator including evaporator heat exchange tubes; it also includes a spray pipe for spraying water onto the evaporator, one end of the spray pipe being connected to a solenoid valve for controlling the on / off state of the spray pipe; it includes a control system, the control system including a vision recognition system, the vision recognition system including a camera for capturing images of the evaporator, and the control system controlling the solenoid valve.

[0006] Preferably, the spray pipe is horizontally arranged and located above and behind the evaporator. A water spray hole is formed on the lower front side of the spray pipe, and the water spray hole is arranged at intervals along the extension direction of the spray pipe.

[0007] Preferably, the camera is positioned higher than the spray pipe.

[0008] Preferably, the evaporator heat exchange tube is attached to an ultrasonic transducer, and the control system controls the ultrasonic transducer.

[0009] Preferably, the ultrasonic transducers are arranged in a left-right direction.

[0010] Preferably, the evaporator is connected to a return gas pipe, and a pressure sensor is installed on the return gas pipe. The control system is electrically connected to the pressure sensor.

[0011] Compared with the prior art, the advantages of this utility model are as follows: by setting up a spray pipe for spraying water onto the evaporator, one end of the spray pipe is connected to a solenoid valve for controlling the on and off of the spray pipe, and the control system includes a visual recognition system, which includes a camera for capturing images of the evaporator. The control system controls the solenoid valve, thus enabling the evaporator to be cleaned automatically, which is beneficial for the normal operation of the evaporator. Attached Figure Description

[0012] Figure 1 This is a rear-view perspective view of a pet drying box equipped with the evaporator cleaning system of this invention.

[0013] Figure 2 This is a cross-sectional view of a pet drying box equipped with the evaporator cleaning system of this utility model, viewed from the left.

[0014] Figure 3 for Figure 2 A partial structural diagram.

[0015] Figure 4 This is a schematic diagram of the structure of the spray pipe and solenoid valve combination of this utility model.

[0016] Figure 5 for Figure 1 A partial structural diagram.

[0017] Figure 6 This is a simplified structural diagram of a refrigeration system.

[0018] Labeling Explanation: 1. Box Body; 10. Box Cavity Rear Wall; 101. Compressor; 2. Condenser; 3. Evaporator; 4. Evaporator Heat Exchanger Tube; 401. Return Gas Pipe; 40. Ultrasonic Vibrator; 5. Circulating Fan; 6. Camera; 7. Spray Pipe; 8. Water Spray Hole; 801. Solenoid Valve; 9. Capillary Tube; 98. Pressure Sensor; 97. Detailed Implementation

[0019] The present invention will now be further described with reference to the accompanying drawings.

[0020] The evaporator cleaning system of this utility model, such as Figures 1 to 4 As shown, the system includes a vertically mounted evaporator 4, which includes evaporator heat exchange tubes 401. The evaporator heat exchange tubes 401 can be copper tubes. When the refrigeration system is working, the refrigerant flows through the evaporator heat exchange tubes 401, which are bent into a straight plate-like structure. Figure 1 and Figure 2As shown, the pet drying box includes a box body 1, within which a box cavity 10 is formed. A rear wall 101 is correspondingly provided at the rear of the box cavity 10. Figure 1 and Figure 2 As shown, the aforementioned straight-plate-shaped evaporator 4 stands upright against the rear outer side of the rear wall 101 of the chamber, as... Figure 2 and Figure 6 As shown, the refrigeration system includes a compressor 2, a condenser 3, an evaporator 4, and a capillary tube 98. A circulating fan 6 is installed outside the housing 10. When the circulating fan 6 is running, it supplies air into the housing 10. A return air inlet is formed at the lower rear end of the housing 10, so the airflow is discharged outside the housing 10 through the return air inlet. The airflow then flows upward through the evaporator 4, and then flows back to the circulating fan 6, thus forming a circulating airflow. Since the working principle of the refrigeration system is existing technology and is not the focus of this utility model, it will not be described in detail.

[0021] like Figures 1 to 3 As shown, the evaporator cleaning system of this utility model includes a spray pipe 8 for spraying water onto the evaporator 4, such as... Figure 4 As shown, one end of the spray pipe 8 is connected to a solenoid valve for controlling the on / off state of the spray pipe 8; the evaporator cleaning system of this utility model includes a control system, which includes a visual recognition system, which includes a camera 7 for capturing images of the evaporator 4, and the control system controls the solenoid valve. The visual recognition system is prior art. Examples can be found in Chinese invention patent announcement number CN109389341B "A Machine Visual Recognition System for Unmanned Convenience Stores", Chinese invention patent announcement number CN114066848B "A Visual Detection System for Appearance Defects in FPCA", and Chinese invention patent announcement number CN113673417B "A Method and System for Assisting Aircraft Ground Taxiing Based on Image Comparison".

[0022] The working principle of the evaporator cleaning system of this utility model is briefly explained below: Figure 1 and Figure 2As shown, the camera 7 first captures an image of the evaporator 4 in a clean state (i.e., there is no hair or frost on the evaporator 4), and the image of the evaporator 4 in a clean state is stored as a standard image in the visual recognition system. During the use of the pet drying box, the visual recognition system can periodically capture images of the evaporator 4 to generate detection images. The visual recognition system compares and analyzes the detection images with standard images. If the similarity between the detection image and the standard image is greater than or equal to a preset similarity threshold, the control system keeps the solenoid valve 9 closed. After the pet drying box has been used for a period of time, a lot of hair accumulates on the evaporator 4, causing a significant change in the appearance of the evaporator 4. This results in the similarity between the detection image and the standard image being less than the preset similarity threshold. The visual recognition system feeds back the judgment result to the control system, which then controls the solenoid valve 9 to open, connecting the spray pipe 8 to the tap water source. The spray pipe 8 then sprays water onto the evaporator 4, and the water flow washes away the hair (and debris) on the evaporator 4, effectively cleaning the evaporator 4. For example, the control system can control the solenoid valve 9 to open for 1 to 2 minutes each time. After the spraying ends, the control system causes the visual recognition system to resume capturing images of the evaporator 4. If the similarity between the detection image and the standard image is greater than or equal to the preset similarity threshold, the control system keeps the solenoid valve 9 closed. By setting up the aforementioned visual recognition system and spray pipe 8, the evaporator 4 can be automatically cleaned, thereby facilitating its normal operation. For example, the camera 7 can capture images at intervals of 30 to 60 seconds.

[0023] Furthermore, such as Figure 1 As shown, the spray pipe 8 is horizontally arranged; specifically, the spray pipe 8 extends in the left-right direction, as... Figure 2 As shown, the spray pipe 8 is located above and behind the evaporator 4, as... Figure 3 As shown, a water spray hole 801 is formed on the lower front side of the spray pipe 8, which allows the spray pipe 8 to spray water towards the evaporator 4 below. Therefore, the layout of the spray pipe 8 is reasonable. Figure 4 As shown, the spray holes 801 are arranged at intervals along the extension direction of the spray pipe 8. The spray pipe 8 can be provided with three rows of spray holes 801 distributed in the circumferential direction, which is beneficial to expanding the spray range.

[0024] Furthermore, such as Figure 2 As shown, the camera 7 is positioned higher than the sprinkler pipe 8 to prevent water sprayed from the sprinkler pipe 8 from hitting the camera 7.

[0025] Furthermore, such as Figure 1 and Figure 5As shown, an ultrasonic transducer 5 is attached to the evaporator heat exchange tube 401. The control system controls the connection of the ultrasonic transducer 5. The front end of the ultrasonic transducer 5 is attached to the evaporator heat exchange tube 401. For example, a clamp can be set to hold the rear of the ultrasonic transducer 5. The clamp is mounted on a bracket, and the bracket is mounted to the housing 1. The terminals of the ultrasonic transducer 5 are equipped with a waterproof structure. For example, refer to the "A Novel High Waterproof Terminal" in Chinese Utility Model Patent Publication No. CN219393844U. When it is necessary to clean the evaporator 4, the control system controls the spray pipe 8 to spray water. The control system also controls the ultrasonic transducer 5 to work. The high-frequency vibration generated by the ultrasonic transducer 5 is transmitted to the evaporator heat exchange tube 401, causing dirt on the outer wall of the evaporator heat exchange tube 401 to be shaken off. Moreover, the ultrasonic transducer 5 also causes the water on the outer wall of the evaporator heat exchange tube 401 to have a cavitation effect, thereby achieving an ultrasonic cleaning effect on the evaporator heat exchange tube 401.

[0026] Furthermore, such as Figure 1 As shown, the ultrasonic transducers 5 are arranged in a left-right direction, which is beneficial for the evaporator 4 to obtain a larger ultrasonic cleaning range. The ultrasonic transducers 5 can be arranged in two rows, one above the other.

[0027] Furthermore, such as Figure 6 As shown, the evaporator 4 is connected to a return gas pipe 40, and a pressure sensor 97 is installed on the return gas pipe 40. The control system is electrically connected to the pressure sensor 97, which is used to detect the pressure of the gaseous refrigerant in the return gas pipe 40. Figure 6 As shown, the refrigerant flowing from the evaporator 4 returns to the compressor 2 via the return pipe 40. When the refrigeration system malfunctions, causing the refrigerant pressure flowing through the return pipe 40 to exceed the normal range, the pressure sensor 97 can detect this pressure deviation. The control system can then control the compressor 2 to stop working based on the signal from the pressure sensor 97 for maintenance. Simultaneously, the control system can also control the alarm to sound. When the evaporator 4 is covered with a lot of hair or dirt, the heat exchange between the evaporator 4 and the airflow is poor, resulting in the refrigerant failing to evaporate properly within the evaporator 4. Consequently, the pressure sensor 97 detects that the refrigerant pressure is below the normal range. Accordingly, the control system can control the solenoid valve 9 to open and control the ultrasonic transducer 5 to operate.

Claims

1. An evaporator cleaning system, comprising an upright evaporator (4), the evaporator (4) including evaporator heat exchange tubes (401), characterized in that: It includes a spray pipe (8) for spraying water onto the evaporator (4), one end of which is connected to a solenoid valve for controlling the on / off state of the spray pipe (8); it also includes a control system, which includes a vision recognition system, which includes a camera (7) for capturing images of the evaporator (4), and the control system controls the solenoid valve.

2. The evaporator cleaning system according to claim 1, characterized in that: The spray pipe (8) is horizontally arranged and located above and behind the evaporator (4). A water spray hole (801) is formed on the lower front side of the spray pipe (8), and the water spray hole (801) is arranged at intervals along the extension direction of the spray pipe (8).

3. The evaporator cleaning system according to claim 2, characterized in that: The camera (7) is positioned higher than the spray pipe (8).

4. The evaporator cleaning system according to claim 1, characterized in that: An ultrasonic transducer (5) is attached to the heat exchange tube (401) of the evaporator, and the control system controls the ultrasonic transducer (5).

5. The evaporator cleaning system according to claim 4, characterized in that: The ultrasonic transducer (5) is arranged in a left-right direction.

6. The evaporator cleaning system according to claim 4, characterized in that: The evaporator (4) is connected to a return gas pipe (40), and a pressure sensor (97) is provided on the return gas pipe (40). The control system is electrically connected to the pressure sensor (97).

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