Automatic cleaning device for outdoor unit of multi-split air conditioner

Abstract

The utility model relates to the technical field of automatic cleaning devices, and discloses an automatic cleaning device for an outdoor unit of a multi-split air conditioner, which comprises an outdoor unit shell, and heat exchanger fins are mounted at an air inlet in the outdoor unit shell. The bottom end of the device is installed at the bottom of the inner cavity of the shell through a bearing, the output end of the upper motor is coaxially connected with the lead screw, and the motor is installed on the upper portion of the inner cavity of the shell. The cleaning frame is rotationally connected to the surface of the lead screw, and the cleaning brush is arranged on the cleaning surface and can be used for brushing heat exchanger fins to remove stubborn attachments; the flushing frame is also screwed to the lead screw and located below the cleaning frame, a flow regulating valve and a nozzle are arranged at a water outlet of the flushing frame, a water outlet of the water tank is connected with a water inlet of the flushing frame through a water conveying pipe, and water can be sprayed out to flush fins and wash away residual impurities and loose dirt after scrubbing. Through the synergistic effect of scrubbing of the cleaning frame and flushing of the flushing frame, dust and dirt on the surfaces of the heat exchanger fins can be more comprehensively and effectively removed, it is ensured that the surfaces of the fins are clean, and the heat exchange performance of the heat exchanger is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of automatic cleaning devices, specifically an automatic cleaning device for multi-split outdoor units. Background Technology

[0002] Automatic cleaning devices achieve efficient cleaning through intelligent monitoring and multi-stage cleaning processes. Core technologies include: an intelligent triggering mechanism that determines the degree of dirt and blockage based on the operating time interval or by detecting the fan motor current; and a phased cleaning process that typically includes pre-rinsing, cleaning agent spraying, and high-pressure water rinsing, with some models incorporating a frosting-defrosting cycle.

[0003] In existing technologies, the surface of heat exchanger fins in multi-split outdoor units easily accumulates dust, dirt, and other deposits during long-term use. Some of these deposits are stubborn and difficult to remove directly, while others are loose and easy to clean. However, existing cleaning methods often fail to remove them completely and effectively, resulting in insufficient cleanliness of the heat exchanger fin surface and consequently affecting the heat exchanger's heat exchange performance. Existing cleaning solutions may only use a single rinsing or simple cleaning method, which has the drawback of not being able to effectively clean different deposits and cannot adequately solve the problem of comprehensive fin surface cleaning. Therefore, there is a need for an automatic cleaning device that can more comprehensively and effectively remove dust and dirt from the surface of heat exchanger fins through the synergistic action of brushing and rinsing, ensuring fin surface cleanliness and improving heat exchange performance. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an automatic cleaning device for multi-split outdoor units, which solves the problem mentioned in the background art where dust, dirt, and other deposits easily accumulate on the surface. These deposits include both stubborn ones that are difficult to rinse off directly and loose ones that are easy to clean. However, existing cleaning methods often fail to remove them completely and effectively, resulting in insufficient cleanliness of the heat exchanger fins and thus affecting the heat exchanger's heat exchange performance. Furthermore, existing cleaning solutions may only use a single rinsing or simple cleaning method, which has the drawback of not being able to effectively clean different deposits and cannot adequately solve the problem of comprehensive cleaning of the fin surface.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an automatic cleaning device for multi-split outdoor units, comprising:

[0008] The outdoor unit housing has heat exchanger fins installed at the internal air inlet and a support frame installed at the bottom.

[0009] A lead screw is installed inside the outdoor unit housing. The bottom end of the lead screw is mounted to the bottom of the inner cavity of the outdoor unit housing via a bearing. A motor is installed above the lead screw. The output end of the motor is coaxially connected to the lead screw. The motor is installed in the upper part of the inner cavity of the outdoor unit housing.

[0010] A cleaning frame is installed on the surface of the lead screw and is screwed onto the outer periphery of the lead screw. The cleaning surface of the cleaning frame is evenly distributed with cleaning brushes. A rinsing frame is screwed onto the surface of the lead screw and is located below the cleaning frame. Flow regulating valves are evenly distributed at the water outlet of the rinsing frame, and each of the water outlets of the flow regulating valves is equipped with a nozzle.

[0011] A water tank is located at the bottom of the outdoor unit casing. A water supply pipe is installed at the outlet of the water tank, and the water supply pipe is connected to the inlet of the washing rack.

[0012] Preferably, a first water pump is installed at the outlet of the water tank, and the outlet of the first water pump is connected to the inlet of the water supply pipe. Activating the first water pump can inject water from the water tank into the water supply pipe.

[0013] Preferably, a water inlet pipe is screwed onto the water inlet of the water tank, and a funnel is installed at the water inlet of the water inlet pipe to facilitate connecting the water inlet pipe to the water tank, and extending the water inlet end of the water inlet pipe to the outside of the outdoor unit, so as to facilitate adding cleaning water to the water tank.

[0014] Preferably, a second water pump is installed on the surface of the water tank, and a water outlet pipe is installed at the outlet end of the second water pump. Activating the second water pump can discharge the water in the water tank through the water outlet pipe.

[0015] Preferably, slide rails are installed on the inner walls of both the left and right sides of the outdoor unit casing, and first sliders are installed on both the left and right sides of the cleaning rack. The first sliders are inserted into the slide rails, so that the cleaning rack can move vertically.

[0016] Preferably, the rinsing rack has an U-shaped design, and second sliders are installed on both the left and right sides of the rinsing rack at positions corresponding to the slide rail. The second sliders are embedded in the inner cavity of the slide rail, so that the rinsing rack can be raised and lowered stably.

[0017] Beneficial effects

[0018] Compared with the prior art, this utility model provides an automatic cleaning device for multi-split outdoor units, which has the following beneficial effects:

[0019] This multi-split outdoor unit automatic cleaning device features a cleaning rack screwed onto the surface of a lead screw. This rack moves along the lead screw as it rotates, using cleaning brushes on the cleaning surface to scrub the heat exchanger fins and remove stubborn deposits. A rinsing rack, also screwed onto the lead screw and located below the cleaning rack, has nozzles at its outlet that spray water from the tank via a first water pump and water pipes. Moved by the lead screw, this rinsing rack washes away any remaining impurities and loose dirt. The combined effect of brushing and rinsing more thoroughly and effectively removes dust and dirt from the heat exchanger fins, ensuring clean fins and improving heat exchanger performance. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the cleaning assembly of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the water tank of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the cleaning frame of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the washing rack of this utility model.

[0025] In the diagram: 1. Outdoor unit casing; 2. Heat exchanger fins; 3. Support frame; 4. Lead screw; 5. Motor; 6. Cleaning rack; 7. Cleaning brush; 8. Flushing rack; 9. Flow regulating valve; 10. Sprayer head; 11. Water tank; 12. Water supply pipe; 13. First water pump; 14. Inlet pipe; 15. Funnel; 16. Second water pump; 17. Outlet pipe; 18. Slide rail; 19. First slider; 20. Second slider. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This utility model provides a technical solution: an automatic cleaning device for multi-split outdoor units. Please refer to [link / reference]. Figure 1 The unit includes an outdoor unit housing 1, with heat exchanger fins 2 installed at the internal air inlet of the outdoor unit housing 1, and a support frame 3 installed at the bottom of the outdoor unit housing 1.

[0028] Lead screw 4 is located inside the outdoor unit housing 1. The bottom end of lead screw 4 is mounted to the bottom of the inner cavity of the outdoor unit housing 1 via a bearing. Please refer to [link / reference]. Figure 2 A motor 5 is provided above the lead screw 4. The output end of the motor 5 is coaxially connected to the lead screw 4. The motor 5 is installed in the upper part of the inner cavity of the outdoor unit housing 1.

[0029] Cleaning frame 6 is disposed on the surface of lead screw 4 and is screwed onto the outer periphery of lead screw 4. Please refer to [link / reference]. Figure 4 The cleaning surface of the cleaning rack 6 is evenly equipped with cleaning brushes 7. Please refer to [link / reference]. Figure 2 A flushing rack 8 is screwed onto the surface of the lead screw 4. The flushing rack 8 is located below the cleaning rack 6. Please refer to [link / reference]. Figure 5 The outlet of the rinsing rack 8 is evenly equipped with flow regulating valves 9, and each outlet of the flow regulating valve 9 is equipped with a nozzle 10.

[0030] Please see Figure 1 Water tank 11 is located at the bottom of outdoor unit housing 1. Water outlet of water tank 11 is equipped with water pipe 12, which is connected to water inlet of washing rack 8.

[0031] Please see Figure 3 A first water pump 13 is installed at the outlet of the water tank 11. The outlet of the first water pump 13 is connected to the inlet of the water supply pipe 12. Starting the first water pump 13 can inject water from the water tank 11 into the water supply pipe 12.

[0032] First, start the first water pump 13 at the outlet of the water tank 11 to transport the water in the water tank 11 to the inlet of the flushing rack 8 through the water pipe 12, so that the flushing rack 8 is filled with water. At this time, the flow regulating valve 9 evenly distributed at the outlet of the flushing rack 8 regulates the water flow and sprays water through the nozzle 10 to flush the heat exchanger fins 2. At the same time, the motor 5 above the lead screw 4 drives the lead screw 4 to rotate, which drives the cleaning rack 6 screwed to the outer periphery of the lead screw 4 to move along the lead screw 4. The cleaning brushes 7 evenly distributed on the cleaning surface of the cleaning rack 6 clean the heat exchanger fins 2, thereby realizing automatic cleaning.

[0033] The cleaning frame 6 is screwed onto the surface of the lead screw 4 and can move along the lead screw 4 as it rotates. The cleaning brushes 7 on the cleaning surface are used to brush the heat exchanger fins 2 to remove stubborn deposits on the fin surface. The rinsing frame 8 is also screwed onto the lead screw 4 and is located below the cleaning frame 6. The nozzles 10 on its outlet can spray water from the water tank 11 through the first water pump 13 and the water supply pipe 12. It moves under the drive of the lead screw 4 and can rinse the heat exchanger fins 2 to wash away the impurities and some loose dirt remaining after brushing. The two work together. Through the synergistic effect of brushing and rinsing, the dust and dirt on the surface of the heat exchanger fins 2 can be removed more comprehensively and effectively, ensuring the cleanliness of the fin surface and thus improving the heat exchange performance of the heat exchanger.

[0034] A water inlet pipe 14 is screwed onto the water inlet of the water tank 11. A funnel 15 is installed at the water inlet of the water inlet pipe 14 to facilitate connecting the water inlet pipe 14 to the water tank 11 and extending the water inlet end of the water inlet pipe 14 to the outside of the outdoor unit, so as to facilitate adding cleaning water to the water tank 11.

[0035] A second water pump 16 is installed on the surface of the water tank 11. A water outlet pipe 17 is installed at the outlet end of the second water pump 16. Activating the second water pump 16 can discharge the water in the water tank 11 through the water outlet pipe 17.

[0036] Please see Figure 1 The inner walls of both the left and right sides of the outdoor unit casing 1 are equipped with slide rails 18. Please refer to [link / reference]. Figure 4 The cleaning frame 6 is equipped with a first slider 19 on both the left and right sides. The first slider 19 is inserted into the slide rail 18, so that the cleaning frame 6 can move vertically.

[0037] Please see Figure 5 The rinsing rack 8 has a U-shaped design. The left and right sides of the rinsing rack 8 are equipped with second sliders 20 corresponding to the slide rail 18. The second sliders 20 are embedded in the inner cavity of the slide rail 18, so that the rinsing rack 8 can be raised and lowered stably.

[0038] In operation, the following steps are taken: First, cleaning water is added to the water tank 11 through the inlet pipe 14 and the funnel 15 at the inlet. During cleaning, the motor 5 is started, driving the lead screw 4 to rotate. The cleaning frame 6 is screwed onto the surface of the lead screw 4 and moves along it as the lead screw 4 rotates. The cleaning brush 7 on the cleaning surface is used to brush the heat exchanger fins 2. At the same time, the first water pump 13 is started to transport the water in the water tank 11 to the flushing frame 8 through the water supply pipe 12. The flushing frame 8 is also screwed onto the lead screw 4 and is located below the cleaning frame 6. The nozzles 10 at its outlet spray water and move under the drive of the lead screw 4 to flush the heat exchanger fins 2. The two work together to remove dust and dirt from the surface of the fins. During this process, the first sliders 19 on the left and right sides of the cleaning frame 6 are inserted into the slide rails 18 on the left and right sides of the outdoor unit casing 1 to ensure the vertical movement of the cleaning frame 6. The flushing frame 8 has a U-shaped design, and the second sliders 20 installed on its left and right sides at positions corresponding to the slide rails 18 are embedded in the inner cavity of the slide rails 18 to ensure the stable lifting and lowering of the flushing frame 8.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic cleaning device for multi-split outdoor units, characterized in that, include: An outdoor unit housing (1) is provided with heat exchanger fins (2) installed at the internal air inlet of the outdoor unit housing (1) and a support frame (3) is installed at the bottom of the outdoor unit housing (1). A lead screw (4) is installed inside the outdoor unit housing (1). The bottom end of the lead screw (4) is installed at the bottom of the inner cavity of the outdoor unit housing (1) through a bearing. A motor (5) is provided above the lead screw (4). The output end of the motor (5) is coaxially connected to the lead screw (4). The motor (5) is installed in the upper part of the inner cavity of the outdoor unit housing (1). A cleaning frame (6) is set on the surface of the lead screw (4). The cleaning frame (6) is screwed to the outer periphery of the lead screw (4). The cleaning surface of the cleaning frame (6) is evenly provided with cleaning brushes (7). A rinsing frame (8) is screwed to the surface of the lead screw (4). The rinsing frame (8) is located below the cleaning frame (6). A flow regulating valve (9) is evenly provided at the outlet of the rinsing frame (8). A nozzle (10) is installed at the outlet of each flow regulating valve (9). A water tank (11) is located at the bottom of the outdoor unit housing (1). A water pipe (12) is installed at the outlet of the water tank (11), and the water pipe (12) is connected to the inlet of the washing rack (8).

2. The automatic cleaning device for multi-split outdoor units according to claim 1, characterized in that: A first water pump (13) is installed at the outlet of the water tank (11), and the outlet of the first water pump (13) is connected to the inlet of the water supply pipe (12).

3. The automatic cleaning device for multi-split outdoor units according to claim 1, characterized in that: The water tank (11) is screwed with an inlet pipe (14), and a funnel (15) is installed at the inlet of the inlet pipe (14).

4. The automatic cleaning device for multi-split outdoor units according to claim 1, characterized in that: A second water pump (16) is installed on the surface of the water tank (11), and a water outlet pipe (17) is installed at the outlet end of the second water pump (16).

5. The automatic cleaning device for multi-split outdoor units according to claim 1, characterized in that: The outer casing (1) of the outdoor unit is equipped with slide rails (18) on both the left and right inner walls, and the cleaning rack (6) is equipped with first sliders (19) on both the left and right sides.

6. The automatic cleaning device for multi-split outdoor units according to claim 5, characterized in that: The rinsing rack (8) has an inverted shape, and second sliders (20) are installed on both the left and right sides of the rinsing rack (8) at positions corresponding to the slide rail (18).

Images