Automatic cleaning device for filter screen of air conditioner

Abstract

An automatic cleaning device for an air conditioner filter screen comprises a water inlet pipe, an electromagnetic valve and a differential pressure sensor. The water inlet pipe is arranged in a reserved cavity in the air conditioner and located on the rear side of an air conditioner filter screen, a plurality of water outlet holes are formed in a pipe body of the water inlet pipe, the forming direction of the water outlet holes corresponds to the air conditioner filter screen, and the water inlet end of the water inlet pipe penetrates through an air conditioner shell and is connected with an external water source. The electromagnetic valve is arranged on the water inlet pipe, located outside the air conditioner shell and used for controlling water flowing of the water inlet pipe. The pressure difference sensor is arranged on the air conditioner filter screen and is electrically connected with the electromagnetic valve; through the arrangement, the air conditioner filter screen can be automatically cleaned, manual work is avoided, the working efficiency is improved, and the technical problems that the working efficiency is low, night work is needed, and the labor cost is increased are solved.

Description

Technical Field

[0001] This utility model relates to the field of filter cleaning technology, and in particular to an automatic air conditioner filter cleaning device. Background Technology

[0002] Generally, air conditioning units are equipped with air filters to remove impurities from the air. However, these filters need to be cleaned approximately every three months. A clogged filter increases the unit's operating resistance, affecting the airflow. Filter washing is usually done manually with a water hose, and the filters must be allowed to dry completely before installation. To ensure the air conditioning system operates normally during the day, filter cleaning is typically scheduled for the evening, after the equipment is shut down. The filters are then removed for washing, and after drying, they are installed. This process is inefficient, requires nighttime work, and increases labor costs. Utility Model Content

[0003] In view of this, this application provides an automatic air conditioner filter cleaning device. By installing a differential pressure sensor inside the air conditioner, it can detect whether the air conditioner filter needs to be cleaned. When cleaning is required, the air conditioner filter is automatically rinsed through the water inlet pipe.

[0004] According to one aspect of this application, an automatic air conditioner filter cleaning device is provided, including a water inlet pipe, a solenoid valve, and a differential pressure sensor; the water inlet pipe is disposed in a reserved cavity inside the air conditioner, suitable for placement on the rear side of the air conditioner filter, and the water inlet pipe has multiple water outlet holes, the opening direction of which corresponds to the air conditioner filter; the water inlet end of the water inlet pipe penetrates the air conditioner casing and is connected to an external water source; the solenoid valve is disposed on the water inlet pipe and located outside the air conditioner casing, for controlling the water flow through the water inlet pipe; the differential pressure sensor is disposed on the air conditioner filter, and the differential pressure sensor is electrically connected to the solenoid valve.

[0005] In one possible implementation, the water inlet pipe includes a main water inlet pipe and branch water inlet pipes; the main water inlet pipe is located at the upper part of the reserved cavity in the air conditioner; the branch water inlet pipe is vertically arranged below the main water inlet pipe, the inlet end of the branch water inlet pipe is connected to the body of the main water inlet pipe, the bottom of the branch water inlet pipe has a sealed structure, the outlet hole is opened on the body of the branch water inlet pipe, and there are multiple branch water inlet pipes.

[0006] In one possible implementation, a spray head is also included, the inlet end of which is connected to the outlet hole, and the direction of the outlet end of the spray head corresponds to the position of the air conditioner filter. The number of spray heads is the same as the number of outlet holes.

[0007] In one possible implementation, the spray head is equipped with a pressure booster that is adapted to pressurize the water so that it can be sprayed a longer distance.

[0008] In one possible implementation, a control box is also included, which is disposed outside the air conditioner housing and electrically connected to the solenoid valve and the differential pressure sensor.

[0009] In one possible implementation, the control box includes a display screen, an adjustment unit, a timing unit, and a switch unit; the display screen is mounted on the casing of the control box; the adjustment unit, the timing unit, and the switch unit are all located inside the control box and are electrically connected in sequence.

[0010] In one possible implementation, a circulating electric air valve is also included, which is installed in the main air supply duct outside the air conditioner and is electrically connected to the control box.

[0011] In one possible implementation, a water collection basin is also included, which is disposed below the air conditioner filter and the water inlet branch pipe.

[0012] In one possible implementation, a drain hole is provided on one side of the water basin.

[0013] In one possible implementation, a drain pipe is provided on the air conditioner housing at a position corresponding to the drain hole.

[0014] The beneficial effects of this utility model are as follows: By setting up a water inlet pipe, a solenoid valve, and a differential pressure sensor; the water inlet pipe is located in the reserved cavity of the air conditioner and behind the air conditioner filter, used to provide water and rinse the air conditioner filter. Therefore, the water inlet end of the water inlet pipe is located outside the air conditioner casing and connected to the water source; the solenoid valve is set up to control the water inlet pipe to rinse the air conditioner filter; a differential pressure sensor is set on the air conditioner filter to detect whether the air conditioner filter needs rinsing. Through the electrical connection between the differential pressure sensor and the solenoid valve, when the differential pressure sensor detects that the air conditioner filter needs rinsing, it transmits a signal to the solenoid valve, the solenoid valve opens, and water enters the water inlet pipe to rinse the air conditioner filter; through the above settings, this application can automatically clean the air conditioner filter, avoiding manual labor and improving work efficiency. Attached Figure Description

[0015] Figure 1 This application illustrates the specific structure of an automatic air conditioner filter cleaning device according to an embodiment of the present application;

[0016] Figure 2 This diagram illustrates the use of the automatic air conditioner filter cleaning device according to an embodiment of this application.

[0017] Figure 3 This paper shows a detailed structural diagram of the water inlet pipe of the automatic air conditioner filter cleaning device according to an embodiment of this application. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model or simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," "linking," and "hinged" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] like Figure 1As shown, the automatic air conditioner filter cleaning device includes a water inlet pipe 100, a solenoid valve 200, and a differential pressure sensor 300. The water inlet pipe 100 is located in a reserved cavity 400 inside the air conditioner and is suitable for installation on the rear side of the air conditioner filter 500. The water inlet pipe 100 has multiple water outlet holes, and the direction of the water outlet holes corresponds to that of the air conditioner filter 500. The water inlet end of the water inlet pipe 100 passes through the air conditioner casing 600 and is connected to an external water source. The solenoid valve 200 is installed on the water inlet pipe 100 and is located outside the air conditioner casing 600. It is used to control the water flow through the water inlet pipe 100. The differential pressure sensor 300 is installed on the air conditioner filter 500 and is electrically connected to the solenoid valve 200.

[0024] Specifically, the air conditioner needs to have a reserved air chamber 400. A water inlet pipe 100 is installed within this reserved chamber 400. The water inlet pipe 100 provides water for rinsing the air conditioner filter 500. Therefore, it is positioned behind the air conditioner filter 500. To connect the water inlet pipe 100 to the water source, its inlet end penetrates the air conditioner casing 600. After penetrating the casing 600, the water inlet pipe 100 connects to an external water source, allowing water to enter. To allow the water in the inlet pipe 100 to flow out and rinse the air conditioner filter 500, an outlet hole is provided on the pipe body of the inlet pipe 100. Water sprays out from the outlet hole to rinse the air conditioner filter 500. To facilitate quick identification of the air conditioner filter 500... To determine whether the air conditioner filter 500 needs rinsing, a differential pressure sensor 300 is installed on the air conditioner filter 500. The sensor 300 is positioned above the filter and can detect whether rinsing is required. To control the rinsing of the air conditioner filter 500 by the water inlet pipe 100, a solenoid valve 200 is installed at the water inlet end of the pipe. The solenoid valve 200 controls the flow of water into the pipe 100, further controlling the rinsing of the filter 500. An electrical connection is established between the solenoid valve 200 and the differential pressure sensor 300. When the differential pressure sensor 300 detects that the filter 500 needs rinsing, it sends a rinsing signal to the solenoid valve 200, which opens, allowing water to enter the pipe 100 and rinse the filter.

[0025] In one possible implementation, the water inlet pipe 100 includes a main water inlet pipe 110 and a branch water inlet pipe 120; the main water inlet pipe 110 is located at the upper part of the reserved cavity 400 in the air conditioner; the branch water inlet pipe 120 is vertically arranged below the main water inlet pipe 110, the water inlet end of the branch water inlet pipe 120 is connected to the pipe body of the main water inlet pipe 110, the bottom of the branch water inlet pipe 120 is a sealed structure, the water outlet is opened on the pipe body of the branch water inlet pipe 120, and there are multiple branch water inlet pipes 120.

[0026] Specifically, such as Figure 1 As required by actual conditions, the water inlet pipe 100 includes a main water inlet pipe 110 and multiple branch water inlet pipes 120. Each branch water inlet pipe 120 is vertically arranged below the main water inlet pipe 110. In order to allow water to enter the branch water inlet pipes 120, the inlet end of the branch water inlet pipe 120 is connected to the main water inlet pipe 110. The water from the main water inlet pipe 110 enters the multiple branch water inlet pipes 120, so that there is water in the branch water inlet pipes 120. In order to prevent water from flowing out from the bottom of the branch water inlet pipes 120, the bottom of the branch water inlet pipes 120 is set as a sealed structure. The water outlet is opened on the pipe body of the branch water inlet pipes 120. According to the actual size of the air conditioner filter 500, there is a certain distance between every two branch water inlet pipes 120, so that the multiple branch water inlet pipes 120 can thoroughly rinse the air conditioner filter 500.

[0027] In one possible implementation, a spray head 121 is also included, with the inlet end of the spray head 121 connected to the outlet hole, and the direction of the outlet end of the spray head 121 corresponding to the position of the air conditioning filter 500. The number of spray heads 121 is the same as the number of outlet holes. A pressure booster is provided inside the spray head 121, which is suitable for pressurizing the water so that the water can be sprayed a longer distance.

[0028] Specifically, such as Figure 1 As shown, in order to make the water spray out, a spray head 121 is installed on the water outlet of the water inlet branch pipe 120. A pressure booster is installed inside the spray head 121 to pressurize the water. The water is sprayed out under pressure from the pressure booster. The direction of the water outlet of the spray head 121 corresponds to the position of the air conditioning filter screen 500. This ensures that the water is sprayed out with a certain force and a certain distance, so as to clean the air conditioning filter screen 500.

[0029] In one possible implementation, a control box 610 is also included. The control box 610 is disposed outside the air conditioner housing 600 and is electrically connected to the solenoid valve 200 and the differential pressure sensor 300. The control box 610 includes a display screen, an adjustment unit, a timing unit, and a switch unit. The display screen is disposed on the housing of the control box 610. The adjustment unit, the timing unit, and the switch unit are all disposed inside the control box 610 and are electrically connected in sequence.

[0030] Specifically, such as Figure 1As shown, a control box 610 is installed outside the air conditioner housing 600. The control box 610 is mainly used to control the solenoid valve 200 and the differential pressure sensor 300. The control box 610 includes a display screen, an adjustment unit, a timing unit, and a switching unit. The display screen is installed on the housing of the control box 610. The adjustment unit, timing unit, and switching unit are all located inside the control box 610. Parameters are set through the adjustment unit of the control box 610. When the differential pressure sensor 300 reaches the specified parameter, it sends a signal to the control box 610, which displays the result on the display screen. After receiving the signal, the switching unit of the control box 610 sends the signal to the solenoid valve 200, which starts working. The timing unit can also be used to time the process so that the water inlet pipe 100 flushes the air conditioner filter 500 within a specified time.

[0031] In one possible implementation, a circulating electric air valve 620 is also included, which is installed in the main air supply duct 700 outside the air conditioner and is electrically connected to the control box 610.

[0032] Specifically, such as Figure 1 As shown, the circulating electric air valve 620 is set to drive the fan 800 inside the air conditioner to run automatically at low frequency for internal circulation, blowing air onto the air conditioner filter 500. After the set time is reached, the fan 800 stops and the circulating electric air valve 620 closes.

[0033] In one possible implementation, a water basin 630 is also included, which is located below the air conditioner filter 500 and the water inlet branch pipe 120.

[0034] Specifically, such as Figure 1 As shown, in order to collect the water after cleaning, a water basin 630 is installed below the air conditioner filter 500 and the water inlet branch pipe 120. The size of the water basin 630 is slightly larger than the air conditioner filter 500, and the length of the water basin 630 is slightly larger than the length of the main water inlet pipe 110, so that the water after cleaning can be completely collected.

[0035] In one possible implementation, a drain hole is provided on one side of the water basin 630; a drain pipe 900 is provided on the air conditioner housing 600 at a position corresponding to the drain hole.

[0036] Specifically, such as Figure 1 As shown, in order to drain the water from the water basin 630 without disassembling the air conditioner, a drain hole is provided on one side of the water basin 630, and a drain pipe 900 is provided on the air conditioner casing 600 at the position corresponding to the drain hole, so that the cleaned water can be directly discharged to the outside of the air conditioner.

[0037] When used in this application, the device is used in conjunction with the air conditioning unit and installed inside the air conditioning unit. The air conditioning unit manufacturer has reserved a cavity, and the distance between the cavities is not less than 400mm. The control box 610 provides a communication protocol for users to conduct data communication and can perform remote control. The control box is equipped with a display screen, which can set parameters and display faults. Parameters are set through the adjustment unit of the control box 610. When the differential pressure sensor 300 reaches the specified parameter, it transmits a signal to the control box 610, which displays the result on the display screen of the control box 610. After receiving the signal, the switching unit of the control box 610 transmits the signal to the solenoid valve 200, which starts working. The solenoid valve 200 can also be timed by the timing unit to flush the air conditioning filter 500 through the water inlet pipe 100 within a specified time.

[0038] This application achieves automatic detection and automatic cleaning of the air conditioner filter by setting up an inlet pipe 100, a solenoid valve 200, and a differential pressure sensor 300. A control box 610 is installed, electrically connected to the solenoid valve 200 and the differential pressure sensor 300, controlling these components to achieve automatic detection and timed cleaning. An electric air valve 620 is installed to drive the internal fan 800 for automatic low-frequency circulation, blowing air onto the air conditioner filter 500. A water basin 630 with a drain hole and a drain pipe 900 on the air conditioner casing 600 at the corresponding position of the drain hole allow the cleaned water to be directly discharged to the outside of the air conditioner. Through these features, this application can automatically detect, clean, and dry the air conditioner filter, eliminating the need for manual cleaning and installation. This solves the technical problems of low work efficiency and the need for nighttime work, which increases labor costs.

[0039] It should be noted that although the reverse depth detection device has been described above as an example, those skilled in the art will understand that this application is not limited thereto. In fact, users can flexibly set the parameters according to their personal preferences and / or actual application scenarios, as long as the design is reasonable.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope disclosed in the present invention, based on the technical solution and concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic air conditioner filter cleaning device, characterized in that, Includes inlet pipe, solenoid valve and differential pressure sensor; The water inlet pipe is installed in a reserved cavity inside the air conditioner and is suitable for installation behind the air conditioner filter. The water inlet pipe has multiple water outlet holes, and the opening direction of the water outlet holes corresponds to the air conditioner filter. The water inlet end of the water inlet pipe penetrates the air conditioner casing and is connected to an external water source. The solenoid valve is installed on the water inlet pipe and located outside the air conditioner casing, and is used to control the water flow through the water inlet pipe; The differential pressure sensor is installed on the air conditioner filter screen, and the differential pressure sensor is electrically connected to the solenoid valve.

2. The automatic air conditioner filter cleaning device according to claim 1, characterized in that, The water inlet pipe includes a main water inlet pipe and water inlet branch pipes; The main water inlet pipe is located at the upper part of the reserved cavity inside the air conditioner; The water inlet branch pipe is vertically arranged below the main water inlet pipe. The water inlet end of the water inlet branch pipe is connected to the pipe body of the main water inlet pipe. The bottom of the water inlet branch pipe is a sealed structure. The water outlet is opened on the pipe body of the water inlet branch pipe. There are multiple water inlet branch pipes.

3. The automatic air conditioner filter cleaning device according to claim 2, characterized in that, It also includes a spray head, the water inlet of which is connected to the water outlet, and the direction of the water outlet of which corresponds to the position of the air conditioner filter. The number of spray heads is the same as the number of water outlets.

4. The automatic air conditioner filter cleaning device according to claim 3, characterized in that, The spray head is equipped with a pressure booster, which is used to pressurize the water so that it can be sprayed a longer distance.

5. The automatic air conditioner filter cleaning device according to any one of claims 1-4, characterized in that, It also includes a control box, which is located outside the air conditioner housing and is electrically connected to the solenoid valve and the differential pressure sensor.

6. The automatic air conditioner filter cleaning device according to claim 5, characterized in that, The control box includes a display screen, an adjustment unit, a timing unit, and a switch unit; The display screen is mounted on the housing of the control box; The regulating unit, timing unit, and switching unit are all located inside the control box and are electrically connected in sequence.

7. The automatic air conditioner filter cleaning device according to claim 6, characterized in that, It also includes a circulating electric air valve, which is installed in the main air supply duct outside the air conditioner and is electrically connected to the control box.

8. The automatic air conditioner filter cleaning device according to claim 2, characterized in that, It also includes a water basin, which is located below the air conditioner filter and the water inlet branch pipe.

9. The automatic air conditioner filter cleaning device according to claim 8, characterized in that, A drain hole is provided on one side of the water receiving basin.

10. The automatic air conditioner filter cleaning device according to claim 9, characterized in that, A drain pipe is provided on the air conditioner casing at a position corresponding to the drain hole.

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