Fresh air air conditioner evaporator automatic cleaning device

Abstract

The utility model belongs to air conditioning equipment technical field discloses a kind of fresh air air conditioner evaporator automatic cleaning device, including track and the movable plate of sliding connection in the track bottom, the two sides of the movable plate are respectively provided with the first cleaning unit and the second cleaning unit of adjustable spacing, the first cleaning unit and the second cleaning unit are used to clean the two sides of fresh air air conditioner evaporator simultaneously, the utility model is adjusted by being provided with the first cleaning unit and the second cleaning unit of adjustable spacing, cooperate the overall movement of movable plate along track, realize the synchronous cleaning operation of evaporator double side, solve the problem that traditional device needs to operate two sides in batches, shorten the time consumption of cleaning cycle, improve maintenance efficiency and reduce equipment downtime length, so that device can meet the high-frequency cleaning demand of fresh air air conditioning system.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning equipment technology, and more specifically, to an automatic cleaning device for the evaporator of a fresh air air conditioner. Background Technology

[0002] Fresh air conditioning units are a type of equipment in modern building environmental control systems. Their evaporators are key components for achieving heat exchange between air and refrigerant. During long-term operation, dust, oil, and other pollutants easily accumulate on the surface of the evaporator fins, leading to decreased heat exchange efficiency, increased energy consumption, and microbial growth. After a period of use, the evaporator often needs to be cleaned with a cleaning device.

[0003] The cleaning devices currently in use require separate operations on the windward and leeward sides of the evaporator when performing cleaning operations. That is, after cleaning one side, the device must be repositioned and then the other side is cleaned. In other words, two independent cleaning processes must be performed in succession during the cleaning process, which multiplies the overall cleaning time and its work efficiency needs to be improved.

[0004] In view of this, we propose an automatic cleaning device for the evaporator of a fresh air conditioner. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] The purpose of this utility model is to provide an automatic cleaning device for the evaporator of a fresh air conditioner, so as to solve the problem that the working efficiency of traditional fresh air conditioner evaporator cleaning devices mentioned in the background art needs to be improved.

[0007] 2. Technical Solution

[0008] An automatic cleaning device for the evaporator of a fresh air conditioner includes a track and a movable plate slidably connected to the bottom of the track. A first cleaning unit and a second cleaning unit with adjustable spacing are respectively arranged on both sides of the movable plate. The first and second cleaning units are used to simultaneously clean both sides of the evaporator of the fresh air conditioner. The first cleaning unit includes a first movable frame slidably connected to the bottom of the movable plate and a first cleaning brush rotatably connected to the first movable frame. The second cleaning unit includes a second movable frame slidably connected to the bottom of the movable plate and a second cleaning brush rotatably connected to the second movable frame. The movable plate is provided with an adjusting component for adjusting the distance between the first and second cleaning units, and a driving component for simultaneously driving the first and second cleaning units.

[0009] Preferably, a first slider with an inverted T-shaped cross-section is fixedly connected to the top of the movable plate, a first groove adapted to the size of the first slider is provided at the bottom of the track, an electric push rod is fixedly connected to the track, and the extended end of the electric push rod is fixedly connected to the movable plate.

[0010] Preferably, the top of both the first movable frame and the second movable frame are fixedly connected to a second slider with a T-shaped cross-section, and the bottom of the movable plate is provided with a second groove that matches the size of the second slider.

[0011] Preferably, the adjusting component includes a bidirectional screw rotatably connected to the movable plate and a first motor fixedly connected to the movable plate for driving the bidirectional screw to rotate. The threads at both ends of the bidirectional screw are arranged in opposite directions, and both ends of the bidirectional screw are threadedly connected to a screw sleeve. The two screw sleeves are respectively connected to the top of the first movable frame and the second movable frame through a ball screw pair thread.

[0012] Preferably, the driving component includes a second motor fixedly connected to the movable plate and a drive rod rotatably connected to the output end of the second motor. The drive rod is fixedly connected to the rotating shaft of the first cleaning brush. A first bevel gear is fixedly connected to the drive rod. A driven rod is rotatably connected to the first movable frame. A second bevel gear is fixedly connected to the end of the driven rod. A fourth bevel gear is fixedly connected to the rotating shaft of the second cleaning brush. The first bevel gear and the second bevel gear are meshed together. A mounting frame is fixedly connected to the second movable frame. A third bevel gear is rotatably connected to the mounting frame. The third bevel gear and the fourth bevel gear are meshed together. The third bevel gear has an opening in the middle, and a limit block is fixedly connected to the opening. A limit groove adapted to the size of the limit block is provided on the driven rod.

[0013] Preferably, a rotating ring with an L-shaped cross-section is fixedly connected to the third bevel gear, and a rotating groove adapted to the size of the rotating ring is provided on the mounting bracket.

[0014] Preferably, both the first and second movable frames are fixedly connected with a plurality of spray heads arranged in an array.

[0015] 3. Beneficial effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] 1. This utility model achieves simultaneous cleaning of both sides of the evaporator by setting up a first cleaning unit and a second cleaning unit with adjustable spacing, and cooperating with the overall movement of the movable plate along the track. This solves the problem that traditional devices need to operate both sides in separate steps, shortens the cleaning cycle time, improves maintenance efficiency and reduces equipment downtime, and enables the device to meet the high-frequency cleaning needs of fresh air conditioning systems.

[0018] 2. By adjusting the settings of the components, this utility model allows the distance between the two cleaning brushes to flexibly adapt to the thickness of the evaporator, enabling a single cleaning device to be compatible with the size differences of evaporators of different specifications, reducing the cost of equipment customization and enhancing the versatility of the product.

[0019] 3. This utility model achieves synchronous operation of two cleaning brushes driven by a single motor through the meshing transmission of the bevel gear set in the drive component and the setting of the limiting groove, and can transmit power at various intervals between the first cleaning unit and the second cleaning unit. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is another three-dimensional structural schematic diagram of the present invention;

[0022] Figure 3 This is a diagram showing the connection relationship between the first cleaning unit and the second cleaning unit of this utility model;

[0023] Figure 4 This is a bottom view of the first and second cleaning units of this utility model;

[0024] Figure 5 This is a diagram showing the connection relationship of the bidirectional screw of this utility model;

[0025] Figure 6 This is an exploded view of the third bevel gear and the driven rod of this utility model;

[0026] Figure 7 This is a cross-sectional view of the third bevel gear and mounting bracket of this utility model.

[0027] The following are the labels in the diagram: 1. Track; 101. Electric push rod; 102. Movable plate; 103. First slider; 104. First slide groove; 2. First cleaning unit; 21. First movable frame; 22. First cleaning brush; 3. Second cleaning unit; 31. Second movable frame; 32. Second cleaning brush; 4. Adjustment component; 41. Second slider; 42. Second slide groove; 43. First motor; 44. Bidirectional screw; 45. Screw sleeve; 5. Drive component; 51. Second motor; 52. Drive rod; 53. First bevel gear; 54. Driven rod; 55. Second bevel gear; 56. Third bevel gear; 57. Limiting block; 58. Limiting groove; 59. Mounting bracket; 510. Rotating ring; 511. Rotating groove; 512. Fourth bevel gear; 6. Spray head. Detailed Implementation

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 and simplifying the description, and are not intended to indicate or imply that the device or component 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.

[0029] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Please see Figure 1-7 This utility model provides a technical solution:

[0032] An automatic cleaning device for the evaporator of a fresh air conditioner includes a track 1 and a movable plate 102 slidably connected to the bottom of the track 1. A first cleaning unit 2 and a second cleaning unit 3 with adjustable spacing are respectively arranged on both sides of the movable plate 102. The first cleaning unit 2 and the second cleaning unit 3 are used to clean both sides of the evaporator of the fresh air conditioner simultaneously. An adjusting component 4 is provided on the movable plate 102 for adjusting the spacing between the first cleaning unit 2 and the second cleaning unit 3. A driving component 5 is also provided on the movable plate 102 for simultaneously driving the first cleaning unit 2 and the second cleaning unit 3. With this configuration, the movable plate 102 can reciprocate along the length of the evaporator through the sliding connection structure between the track 1 and the movable plate 102 in conjunction with the electric push rod 101. This achieves full coverage of the evaporator surface by the cleaning device, reducing manual intervention while providing a stable displacement basis for the synchronous operation of the two cleaning units, thus improving the stability of automated cleaning.

[0033] Secondly, a first slider 103 with an inverted T-shaped cross-section is fixedly connected to the top of the movable plate 102, and a first groove 104 adapted to the size of the first slider 103 is opened at the bottom of the track 1. An electric push rod 101 is fixedly connected to the track 1, and the extended end of the electric push rod 101 is fixedly connected to the movable plate 102. This arrangement can ensure that the movable plate 102 slides smoothly in one direction along the track 1, eliminate the risk of running deviation, and ensure the structural stability of the overall device.

[0034] Furthermore, the first cleaning unit 2 includes a first movable frame 21 slidably connected to the bottom of the movable plate 102 and a first cleaning brush 22 rotatably connected to the first movable frame 21. The second cleaning unit 3 includes a second movable frame 31 slidably connected to the bottom of the movable plate 102 and a second cleaning brush 32 rotatably connected to the second movable frame 31. The top of both the first movable frame 21 and the second movable frame 31 are fixedly connected to a second slider 41 with a T-shaped cross section. The bottom of the movable plate 102 is provided with a second sliding groove 42 that matches the size of the second slider 41. This arrangement allows the two cleaning units to move as a whole with the movable plate 102 and to adjust their lateral spacing independently. The cleaning brush can be made of flexible nylon bristles.

[0035] Specifically, the adjusting component 4 includes a bidirectional screw 44 rotatably connected to the movable plate 102 and a first motor 43 fixedly connected to the movable plate 102 for driving the bidirectional screw 44 to rotate. The threads at both ends of the bidirectional screw 44 are arranged in opposite directions, and both ends of the bidirectional screw 44 are threadedly connected to a screw sleeve 45. The two screw sleeves 45 are respectively connected to the top of the first movable frame 21 and the second movable frame 31 through a ball screw pair thread. With this arrangement, the first motor 43 drives the bidirectional screw 44 to rotate, and the reverse screw drives the screw sleeves 45 at both ends to achieve synchronous reverse displacement of the first movable frame 21 and the second movable frame 31. Only a single power source is needed to accurately control the distance between the two cleaning brushes. In addition, the threaded drive has a self-locking characteristic, which can also prevent deviation during operation.

[0036] Furthermore, the drive component 5 includes a second motor 51 fixedly connected to the movable plate 102 and a drive rod 52 rotatably connected to the output end of the second motor 51. The drive rod 52 is fixedly connected to the rotating shaft of the first cleaning brush 22. A first bevel gear 53 is fixedly connected to the drive rod 52. A driven rod 54 is rotatably connected to the first movable frame 21. A second bevel gear 55 is fixedly connected to the end of the driven rod 54. A fourth bevel gear 512 is fixedly connected to the rotating shaft of the second cleaning brush 32. The first bevel gear 53 and the second bevel gear 55 are meshed together. A mounting bracket 59 is fixedly connected to the second movable frame 31. A third bevel gear 56 is rotatably connected to the mounting bracket 59. The third bevel gear 56 meshes with the fourth bevel gear 512. The bevel gear 512 is engaged, and the third bevel gear 56 has an opening in the middle, at which a limit block 57 is fixedly connected. The driven rod 54 has a limit groove 58 that matches the size of the limit block 57. The third bevel gear 56 has a rotating ring 510 with an L-shaped cross section fixedly connected. The mounting bracket 59 has a rotating groove 511 that matches the size of the rotating ring 510. With this configuration, the rotational force of the first cleaning brush 22 is transmitted to the third bevel gear 56 via the driven rod 54 through the second motor 51, which in turn drives the second cleaning brush 32 to rotate. In other words, a single motor can synchronously drive the two cleaning brushes to rotate, ensuring the balance of cleaning force on both sides.

[0037] In practical implementation, protective covers can be added to the positions of the adjusting component 4 and the driving component 5 to protect the precision components. In addition, it should be noted that the setting of the limiting block 57 and the limiting groove 58 allows the driven rod 54 to slide horizontally relative to the third bevel gear 56 to adapt to the spacing adjustment of the two cleaning units.

[0038] In addition, multiple arrayed spray heads 6 are fixedly connected to the first movable frame 21 and the second movable frame 31. In specific implementation, they should be connected to an external water source or condensate recovery system through pipelines so that the physical scraping of the cleaning brush and liquid rinsing can work together to dissolve the adhering dirt and prevent dust from being generated, thereby improving the efficiency of automatic cleaning.

[0039] Working principle:

[0040] When using this device, the bidirectional screw 44 of the adjusting component 4 first rotates to drive the movable frames on both sides to slide in opposite directions, so that the distance between the first cleaning brush 22 and the second cleaning brush 32 is adapted to the thickness of the evaporator to be cleaned. Then, the second motor 51 of the driving component 5 starts, driving the first cleaning brush 22 to rotate. At the same time, the first bevel gear 53 meshes and transmits power to the driven rod 54. Then, the third bevel gear 56 is driven to rotate through the cooperation of the limiting block 57 and the limiting groove 58, and finally drives the second cleaning brush 32 to achieve synchronous rotation. After that, the electric push rod 101 pushes the movable plate 102 to slide along the track 1, driving the two cleaning brushes to sweep across the fin surface synchronously along the length of the evaporator for scraping. The spray head 6 sprays water synchronously to dissolve the stains. As the movable plate 102 continues to move back and forth, the double-sided cleaning brushes cover the entire surface of the evaporator in a continuous reverse rotation state until the cleaning is completed.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic cleaning device for the evaporator of a fresh air conditioner, characterized in that: The system includes a track (1) and a movable plate (102) slidably connected to the bottom of the track (1). The movable plate (102) has a first cleaning unit (2) and a second cleaning unit (3) with adjustable spacing on both sides. The first cleaning unit (2) and the second cleaning unit (3) are used to clean both sides of the evaporator of the fresh air conditioner at the same time. The first cleaning unit (2) includes a first movable frame (21) slidably connected to the bottom of the movable plate (102) and a first cleaning brush (22) rotatably connected to the first movable frame (21). The second cleaning unit (3) includes a second movable frame (31) slidably connected to the bottom of the movable plate (102) and a second cleaning brush (32) rotatably connected to the second movable frame (31). The movable plate (102) is provided with an adjusting component (4) for adjusting the spacing between the first cleaning unit (2) and the second cleaning unit (3). The movable plate (102) is also provided with a driving component (5) for simultaneously driving the first cleaning unit (2) and the second cleaning unit (3).

2. The automatic cleaning device for the evaporator of a fresh air conditioner as described in claim 1, characterized in that: The top of the movable plate (102) is fixedly connected to a first slider (103) with an inverted T-shaped cross section. The bottom of the track (1) is provided with a first groove (104) that matches the size of the first slider (103). An electric push rod (101) is fixedly connected to the track (1). The extended end of the electric push rod (101) is fixedly connected to the movable plate (102).

3. The automatic cleaning device for the evaporator of a fresh air conditioner as described in claim 1, characterized in that: The top of the first movable frame (21) and the second movable frame (31) are both fixedly connected to a second slider (41) with a T-shaped cross section, and the bottom of the movable plate (102) is provided with a second groove (42) that matches the size of the second slider (41).

4. The automatic cleaning device for the evaporator of a fresh air conditioner as described in claim 1, characterized in that: The adjusting component (4) includes a bidirectional screw (44) rotatably connected to the movable plate (102) and a first motor (43) fixedly connected to the movable plate (102) for driving the bidirectional screw (44) to rotate. The threads at both ends of the bidirectional screw (44) are arranged in opposite directions, and both ends of the bidirectional screw (44) are threadedly connected to a screw sleeve (45). The two screw sleeves (45) are respectively connected to the top of the first movable frame (21) and the second movable frame (31) through a ball screw pair thread.

5. The automatic cleaning device for the evaporator of a fresh air conditioner as described in claim 1, characterized in that: The driving component (5) includes a second motor (51) fixedly connected to the movable plate (102) and a drive rod (52) rotatably connected to the output end of the second motor (51). The drive rod (52) is fixedly connected to the rotating shaft of the first cleaning brush (22). A first bevel gear (53) is fixedly connected to the drive rod (52). A driven rod (54) is rotatably connected to the first movable frame (21). A second bevel gear (55) is fixedly connected to the end of the driven rod (54). A second bevel gear (55) is fixedly connected to the rotating shaft of the second cleaning brush (32). The fourth bevel gear (512) is connected to the first bevel gear (53) and the second bevel gear (55). A mounting bracket (59) is fixedly connected to the second movable frame (31). A third bevel gear (56) is rotatably connected to the mounting bracket (59). The third bevel gear (56) is connected to the fourth bevel gear (512). The third bevel gear (56) has an opening in the middle, and a limit block (57) is fixedly connected to the opening. A limit groove (58) that matches the size of the limit block (57) is provided on the driven rod (54).

6. The automatic cleaning device for the evaporator of a fresh air conditioner as described in claim 5, characterized in that: A rotating ring (510) with an L-shaped cross section is fixedly connected to the third bevel gear (56), and a rotating groove (511) adapted to the size of the rotating ring (510) is provided on the mounting bracket (59).

7. The automatic cleaning device for the evaporator of a fresh air conditioner as described in claim 1, characterized in that: Multiple arrayed spray heads (6) are fixedly connected to both the first movable frame (21) and the second movable frame (31).

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