Coating tool

Abstract

The utility model discloses a coating tool, relates to the technical field of air conditioners, and is used for solving the problem that fins are blocked by an existing heat exchanger moisture absorption layer coating method. The coating tool comprises a containing part. A containing cavity is formed in the containing piece. The containing cavity is used for arranging a fin heat exchanger. The containing piece is provided with an inlet and an outlet. The inlet and the outlet communicate with the containing cavity. The containing piece is provided with a containing face and used for enabling the fin heat exchanger to be obliquely arranged relative to the containing face, and the included angle between the containing piece and the containing face is an acute angle. The coating tool is used for providing a placement position when the fin heat exchanger is coated with a moisture absorption layer.

Description

Technical Field

[0001] The present application relates to the field of air conditioning technology, and in particular to a coating tool. Background Art

[0002] As people's requirements for home comfort increase, the demand for dehumidification products is also increasing. In current air conditioners, the main dehumidification methods include refrigeration dehumidification technology, rotary adsorption dehumidification and heat exchanger coating dehumidification technology.

[0003] Heat exchanger coating technology involves applying a layer of hygroscopic material to the surface of a heat exchanger, which then absorbs and releases moisture to achieve humidity exchange. The main methods for applying hygroscopic material to heat exchanger surfaces include dipping, spraying, and centrifugation.

[0004] However, this method will result in uneven coating on the surface of the heat exchanger fins, causing fin blockage and affecting the moisture exchange efficiency of the heat exchanger. Utility Model Content

[0005] The present application provides a coating tool for solving the problem that the existing method for coating the moisture-absorbing layer of a heat exchanger may cause fin clogging.

[0006] To achieve the above objectives, this application adopts the following technical solutions:

[0007] An embodiment of the present application provides a coating tool, comprising a container. The container defines a chamber within the container. The chamber is configured to accommodate a finned heat exchanger. The container defines an inlet and an outlet, both of which are connected to the chamber. The container has a placement surface, configured to tilt the finned heat exchanger relative to the placement surface, with the angle between the container and the placement surface being acute.

[0008] When using the coating tool provided in the embodiments of the present application to further coat a heat exchanger, the finned heat exchanger, which has been impregnated with a hygroscopic material, is placed through the inlet into the receiving cavity of the container. Suction is then applied from the outlet connected to the receiving cavity, causing air to flow from the inlet into the receiving cavity, pass through the heat exchanger, and be blown out through the outlet.

[0009] When air flows through a heat exchanger with a surface soaked in hygroscopic material, it will carry away some of the material. Because this material is not tightly adhered to the surface, it can be easily carried away. The hygroscopic material carried away by the airflow will leave the chamber through the outlet. After a suitable amount of airflow, a suitable amount of hygroscopic material will remain on the heat exchanger, forming a hygroscopic layer of appropriate thickness on the fin heat exchanger.

[0010] Furthermore, once the heat exchanger is placed in the housing, the housing will create an acute angle between the heat exchanger and the surface. This prevents the hygroscopic material on the heat exchanger from being blocked by the heat exchanger's structure as it leaves the heat exchanger with the airflow, preventing excessive accumulation of hygroscopic material in one location and potentially blocking the heat exchanger's fins.

[0011] In some embodiments, the container includes a top plate, a side plate, and a bottom plate. The top plate defines an inlet. The side plate is located on one side of the top plate, surrounds the top plate, and is connected to the top plate. The bottom plate is located on a side of the side plate away from the top plate. The bottom plate defines an outlet. The side plate defines a limiter. The limiter is used to secure the fin heat exchanger so that the fin heat exchanger is tilted relative to the bottom plate, forming an acute angle with the bottom plate.

[0012] In some embodiments, the side panel includes two first side panels. The two first side panels are spaced relative to each other. A limiting groove is defined on the first side panel. The limiting portion is the limiting groove. The limiting groove extends along a first direction, with one end penetrating the first side panel. The inlet extends through the top panel along the arrangement direction of the two first side panels, with one end communicating with the limiting groove of one first side panel and the other end communicating with the limiting groove of the other first side panel. The angle between the first direction and the plane of the bottom panel is an acute angle.

[0013] In some embodiments, the coating tool further includes a reinforcement member and a plurality of connectors. The reinforcement member is located at an end of the retaining groove away from the top plate, at least partially obstructing the retaining groove. The plurality of connectors extend through the reinforcement member and connect to the first side panel. The plurality of connectors are located on either side of the retaining groove along a second direction, the second direction being perpendicular to the first direction.

[0014] In some embodiments, the coating tool further includes a blocking member. The blocking member is movably mounted on the first side panel and is located at an end of the limiting groove near the outlet. The blocking member is used to block a portion of the limiting groove and is also used to be staggered with the limiting groove.

[0015] In some embodiments, the coating tooling further comprises a first rotating shaft and a limiting member. The first rotating shaft is disposed on the first side panel, located at one end of the limiting groove close to the outlet, and located on one side of the limiting groove along the second direction. The limiting member is disposed on the first side panel, located at one end of the limiting groove close to the outlet, and located on the side of the limiting groove away from the first rotating shaft along the second direction. One end of the blocking member is passed through the first rotating shaft and is rotationally connected to the rotating shaft, and the other end is located on the side of the limiting member close to the top plate, and is provided with an avoidance groove, in which the limiting member is engaged.

[0016] In some embodiments, the side panels further include two second side panels and a plurality of reinforcing panels. The two second side panels are positioned between the two first side panels and spaced apart from each other. The plurality of reinforcing panels are positioned on the sides of the two second side panels that are spaced apart from each other. A portion of the reinforcing panel is connected to the second side panels, and another portion is connected to the bottom panel.

[0017] In some embodiments, the second side plate, the two first side plates, the top plate, and the bottom plate form a receiving groove. The surface of the second side plate on the side away from the receiving cavity serves as the bottom of the receiving groove. The reinforcement plate is located in the mounting groove.

[0018] In some embodiments, the angle between the first direction and the plane where the bottom plate is located is 30 degrees to 60 degrees.

[0019] In some embodiments, along the first direction, the inlet and the outlet are located on both sides of the limiting groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of a centrifugal device provided for related technology;

[0021] Figure 2 A schematic diagram of a portion of the structure of a heat exchanger provided in an embodiment of the present application;

[0022] Figure 3 A process diagram of coating slurry for a three-way catalytic converter in the related art;

[0023] Figure 4 A schematic structural diagram of a coating tool provided in an embodiment of the present application;

[0024] Figure 5 A schematic structural diagram of another coating tool provided in an embodiment of the present application;

[0025] Figure 6 A schematic structural diagram of another coating tool provided in an embodiment of the present application;

[0026] Figure 7 for Figure 6 A schematic structural diagram of the coating tooling from another perspective;

[0027] Figure 8 A schematic structural diagram of the vacuum coating equipment provided in an embodiment of the present application;

[0028] Figure 9 for Figure 6 A schematic diagram of a front view of a coating tool;

[0029] Figure 10 for Figure 9 A partial enlarged schematic diagram of the structure at point A in the middle;

[0030] Figure 11 for Figure 6 A partial enlarged schematic diagram of the structure at B in the middle;

[0031] Figure 12 for Figure 6 A schematic structural diagram of the coating tooling from another perspective.

[0032] Reference numerals:

[0033] 100-heat exchanger; 10-fin; 20-heat exchange tube; 40-three-way catalytic converter; 50-coating tooling; 51-placement part; 52-accommodation part; 53-accommodation part; 5301-accommodation chamber; 5302-inlet; 5303-outlet; 5304-placement surface; 531-top plate; 532-side plate; 5321-first side plate; 5322-second side plate; 5323-reinforcement plate; 533-bottom plate; 534-limiting part; 5341-limiting groove; 54-reinforcement part; 55-connecting part; 56-blocking part; 57-rotating shaft; 58-limiting part; 60-vacuum coating equipment; 61-vacuum buffer tank; 62-water ring vacuum unit; 63-coating host; 200-centrifugal equipment. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0035] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] 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. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connect" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances. Furthermore, when describing pipelines, the terms "connected" and "connected" used in this application have the meaning of conducting electricity. The specific meanings need to be understood in the context.

[0038] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0039] As people's demand for home comfort increases, many products that can regulate indoor air humidity have appeared on the market. Among them, ordinary air conditioners can improve and maintain indoor air temperature. When the air conditioner's heat exchanger is equipped with components and materials that can exchange moisture, the air conditioner can also improve and maintain indoor air humidity.

[0040] Generally, a layer of hygroscopic material is coated on the surface of the heat exchanger. The hygroscopic material can absorb and release water molecules in conjunction with the absorption and release of energy of the heat exchanger, thereby enabling the heat exchanger to achieve the function of regulating the humidity in the air.

[0041] In related technologies, hygroscopic materials are applied to the surface of the heat exchanger fins through dipping, spraying, electrostatic spraying, centrifugal method and other methods to form a hygroscopic layer to achieve the function of regulating humidity.

[0042] Among these methods, the immersion method involves immersing the heat exchanger in a prepared hygroscopic material to form a hygroscopic layer of a certain thickness. However, the overall thickness of the hygroscopic material formed using the immersion method cannot be guaranteed, nor can the thickness of the hygroscopic material be uniform across the entire area. Due to gravity, the hygroscopic layer can be thicker on the side of the heat exchanger closest to the ground, potentially clogging the fins and reducing the heat exchanger's moisture transfer efficiency.

[0043] The spraying method uses specialized equipment such as a spray gun or atomizer to disperse the hygroscopic material into a uniform, fine mist of droplets, which are then sprayed onto the fin surface. This method allows for a uniform, crack-free application of the diluted material, but it cannot be applied to an assembled heat exchanger.

[0044] Because the gaps between the fins of the assembled heat exchanger are small, the sprayed moisture-absorbing material cannot cover every corner. If the fins are sprayed before assembly, the thickness of the fins will change, making the fin size not compatible with the original assembly tool, resulting in assembly failure.

[0045] The electrostatic spraying method involves applying a negative charge to a hygroscopic powder and placing it in a high-intensity electrostatic field. Driven by the electrostatic force and the carrier gas, the hygroscopic powder evenly flies toward the heat exchanger surface, forming a thin, even layer. The powder is then heated to solidify and transform into a film.

[0046] The film layer coated by electrostatic spraying is uniform and crack-free, but the coating equipment is complex and the overall cost is high.

[0047] like Figure 1 As shown, Figure 1 A schematic diagram of a centrifugal device structure is provided for related art, and a centrifugal device 200 of related art. Using the centrifugal coating method, the heat exchanger needs to be immersed in the prepared hygroscopic material first, and then the immersed heat exchanger is placed in the centrifugal device 200 to use centrifugal force to remove excess slurry.

[0048] This coating method can coat all angles of the heat exchanger, but it requires complex fixtures. Furthermore, the centrifugal force at different distances from the center of the circle varies, resulting in different coating amounts at different locations and uneven distribution of the hygroscopic material.

[0049] Based on this, Figure 2 As shown, Figure 2 This is a partial structural diagram of a heat exchanger. This embodiment of the present application provides a heat exchanger 100 comprising a plurality of fins 10, a plurality of heat exchange tubes 20, and a moisture-absorbing layer. The heat exchange tubes 20 are mounted in contact with the fins 10. The moisture-absorbing layer is applied to at least the surface of the fins 10 using a coating tool.

[0050] The hygroscopic layer is formed by coating with a hygroscopic material. During coating, the heat exchanger 100 is immersed in the hygroscopic material until the areas on the heat exchanger 100 where the hygroscopic layer is to be applied are completely saturated with the material. The heat exchanger 100 is then removed and placed in a coating tool for further coating, until a hygroscopic layer of appropriate thickness and uniformity is formed on the heat exchanger 100.

[0051] The heat exchanger 100 may be a fin heat exchanger 100. The fin heat exchanger 100 may include a plurality of fins 10, a plurality of heat exchange tubes 20, and a moisture absorbing layer. The plurality of heat exchange tubes 20 are installed in contact with the plurality of fins 10. The moisture absorbing layer is provided on at least the surface of the fins 10.

[0052] In related technologies, such as Figure 3 As shown, Figure 3 This diagram illustrates the process of coating a three-way catalytic converter with slurry in related art. The three-way catalytic converter 40 is a cylindrical structure densely packed with small through-holes. During the manufacturing process, slurry is poured into the top of the converter, and then air is pumped from the other side of the slurry, allowing the slurry to enter the converter 40 under the influence of the airflow.

[0053] On this basis, the embodiment of the present application also provides another coating tool 50, which is used to place the fin heat exchanger 100 with the surface soaked therein into the coating tool 50, and then vacuum is performed on the other side of the tool to allow the airflow to carry away excess hygroscopic material on the surface of the fin heat exchanger 100.

[0054] like Figure 4 As shown, Figure 4 This is a schematic diagram of the structure of a coating tool 50 provided in an embodiment of the present application. This embodiment of the present application provides a coating tool 50 comprising a placement member 51. The placement member 51 has an inlet and an outlet. A fin heat exchanger 100, whose surface is impregnated with hygroscopic material, is placed at the inlet of the placement member 51. Suction is applied at the outlet of the placement member 51, allowing air to flow from the inlet to the outlet, removing excess hygroscopic material from the fin heat exchanger 100. This forms a hygroscopic layer of suitable thickness on the fin heat exchanger 100.

[0055] The fin heat exchanger 100 is placed flat on the placement member 51 , and the angle between the fin heat exchanger 100 and the plane where the bottom surface of the coating tooling 50 is located is 0°.

[0056] The fin heat exchanger 100 coated by the coating tool 50 may have burrs formed by the hygroscopic material, which affects the moisture absorption effect of the fin heat exchanger 100 .

[0057] like Figure 5 As shown, Figure 5 This is a schematic diagram of the structure of another coating tool 50 provided in an embodiment of the present application. This embodiment of the present application also provides a coating tool 50 comprising a container 52. The container has an inlet and an outlet. A fin heat exchanger 100, whose surface is impregnated with hygroscopic material, is placed at the inlet of the container 52. Suction is applied at the outlet of the container 52, allowing air to flow from the inlet to the outlet, removing excess hygroscopic material from the fin heat exchanger 100. This forms a hygroscopic layer of suitable thickness on the fin heat exchanger 100.

[0058] The fin heat exchanger 100 is vertically placed in the accommodating part 52 , and the angle between the fin heat exchanger 100 and the plane where the bottom surface of the coating tooling 50 is located is 90°.

[0059] On the fin heat exchanger 100 coated by the coating tool 50, the heat exchange tube 20 ( Figure 2) The moisture-absorbing material at one end away from the outlet will be blocked and cannot be drawn out from the outlet by the airflow. This moisture-absorbing material will remain in the fin heat exchanger 100, causing material accumulation.

[0060] Therefore, if Figure 6 and Figure 7 As shown, Figure 6 This is a structural diagram of another coating tool 50 provided in an embodiment of the present application. Figure 7 for Figure 6 The structural schematic diagram of the coating tool 50 from another perspective, the embodiment of the present application also provides a coating tool 50, including a receiving part 53.

[0061] The interior of the container 53 forms a housing cavity 5301. The housing cavity 5301 is used to accommodate the fin heat exchanger 100. The container 53 defines an inlet 5302 and an outlet 5303. Both the inlet 5302 and the outlet 5303 communicate with the housing cavity 5301. The container 53 has a placement surface 5304. The container 53 is configured to position the fin heat exchanger 100 within the housing cavity 5301 at an angle relative to the placement surface 5304, forming an acute angle with the placement surface 5304.

[0062] When using the coating tool 50 provided in the embodiment of the present application to further coat the heat exchanger 100, the finned heat exchanger 100, which has been impregnated with the hygroscopic material, is placed through the inlet 5302 into the accommodating cavity 5301 of the accommodating member 53. Suction is then applied from the outlet 5303 connected to the accommodating cavity 5301, causing air to flow from the inlet 5302 into the accommodating cavity 5301, pass through the heat exchanger 100, and be blown out through the outlet 5303.

[0063] When air flows through heat exchanger 100, which has a surface soaked with hygroscopic material, it will carry away some of the hygroscopic material. Because this hygroscopic material is not tightly adhered to the surface of the hygroscopic material, it can be easily carried away. The hygroscopic material carried away by the airflow will leave chamber 5301 through outlet 5303. After passing through an appropriate amount of airflow, a suitable amount of hygroscopic material will remain on heat exchanger 100, forming a hygroscopic layer of suitable thickness on fin heat exchanger 100.

[0064] At the same time, after the heat exchanger 100 is placed in the accommodating cavity 5301, the angle between the heat exchanger 100 and the placement surface 5304 is acute due to the restriction of the accommodating member 53. In this way, when the hygroscopic material on the heat exchanger 100 is separated from the heat exchanger 100 by the air flow, it will not be blocked by the structure of the heat exchanger 100 itself, and there will be no excessive accumulation of hygroscopic material in one place, thereby blocking the fins 10 ( Figure 2 ) situation.

[0065] The placement surface 5304 can be connected to other equipment, so that the coating tooling 50 can be placed on other equipment to fix the stability of the coating tooling 50 itself.

[0066] For example, the outlet 5303 may be located on the placement surface 5304. In this case, suction may be applied to the accommodating cavity 5301 at the outlet 5303 from the side of the placement surface 5304 away from the accommodating cavity 5301, so that airflow can flow through the entire heat exchanger 100, allowing excess hygroscopic material on the heat exchanger 100 to be fully removed.

[0067] In other embodiments, the outlet 5303 may not be located on the placement surface 5304 , as long as excess moisture-absorbing material on the heat exchanger 100 can be drawn away from the heat exchanger 100 along the airflow after suction is applied to the outlet 5303 .

[0068] The angle between the fin heat exchanger 100 and the placement surface 5304 refers to the acute angle among the two intersecting angles.

[0069] For example, the angle between the fin heat exchanger 100 and the placement surface 5304 may be greater than 0° and less than 90°.

[0070] Specifically, the angle between the fin heat exchanger 100 and the placement surface 5304 can be 1°, 10°, 15°, 30°, 45°, 50°, 60°, 75°, 80° or 98°.

[0071] If the angle between the fin heat exchanger 100 and the placement surface 5304 is 0°, the fin heat exchanger 100 is placed flat in the accommodation cavity 5301.

[0072] In some embodiments, the coating tool 50 may be placed in a vacuum environment, and then the fin heat exchanger 100 may be placed in the coating tool 50 in the vacuum environment to extract excess moisture-absorbing material from the fin heat exchanger 100 .

[0073] Extracting excess hygroscopic material from the fin heat exchanger 100 in a vacuum environment prevents impurities in the air from affecting the hygroscopic material and altering its properties. Furthermore, the vacuum environment maintains consistent pressure at all locations, ensuring that the thickness of the hygroscopic material remains constant throughout the fin heat exchanger 100.

[0074] In some embodiments, as Figure 8 As shown, Figure 8This is a schematic diagram of the structure of the vacuum coating equipment provided in an embodiment of the present application. A fin heat exchanger 100 impregnated with a hygroscopic material can be placed in a vacuum coating equipment 60 for extraction. The vacuum coating equipment 60 can include a vacuum buffer tank 61, a water ring vacuum unit 62, a coating main unit 63, and a material storage tank (not shown in the figure).

[0075] The vacuum buffer tank 61 can provide a vacuum volume, the water ring vacuum unit 62 can evacuate the vacuum buffer tank 61, and the coating host 63 is an operating table that carries the coating tooling 50 or other devices that need to be coated.

[0076] Specifically, when the vacuum coating equipment 60 is operating, the water ring vacuum unit 62 pre-emptively pumps vacuum to a certain negative pressure in the vacuum buffer tank 61. When the vacuum needs to be removed, the control console activates the vacuum pumping operation, instantly evacuating the excess hygroscopic material from the heat exchanger 100. The airflow then carries the excess hygroscopic material into the storage tank, enabling the material to be recycled.

[0077] In other embodiments, the heat exchanger 100 impregnated with the hygroscopic material may be placed in other equipment as long as the equipment can provide a vacuum environment and perform material extraction.

[0078] In some embodiments, as Figure 6 and Figure 9 As shown, Figure 9 for Figure 6 The schematic diagram of the front view of the coating tooling 50, the container 53 may include a top plate 531, a side plate 532 and a bottom plate 533. The top plate 531 is provided with an inlet 5302. The side plate 532 is located on one side of the top plate 531, is arranged around the top plate 531, and is connected to the top plate 531. The bottom plate 533 is located on the side of the side plate 532 away from the top plate 531. The bottom plate 533 is provided with an outlet 5303. Among them, the side plate 532 forms a limiting portion 534. The limiting portion 534 is used to fix the fin heat exchanger 100, so that the fin heat exchanger 100 is tilted relative to the bottom plate 533, and the angle between the fin heat exchanger 100 and the bottom plate 533 is an acute angle.

[0079] The space between the top plate 531, the side plates 532, and the bottom plate 533 forms a receiving cavity 5301. The finned heat exchanger 100 is placed into the receiving cavity 5301 through the opening in the top plate 531, and its position is restrained by the stoppers 534 on the side plates 532. Once placed in the receiving cavity 5301, the finned heat exchanger 100 is restrained by the stoppers 534, causing it to tilt relative to the bottom plate 533, forming an acute angle with the bottom plate 533.

[0080] In some embodiments, the side plate 532 includes two first side plates 5321 , which are spaced apart from each other. A limiting groove 5341 is defined on the first side plate 5321 . The limiting portion 534 is the limiting groove 5341 .

[0081] The limiting groove 5341 extends along the first direction X, with one end penetrating the first side plate 5321. The inlet 5302 penetrates the top plate 531 along the arrangement direction of the two first side plates 5321, with one end communicating with the limiting groove 5341 of one first side plate 5321 and the other end communicating with the limiting groove 5341 of the other first side plate 5321. The angle between the first direction X and the plane of the bottom plate 533 is an acute angle.

[0082] When the fin heat exchanger 100 is placed into the accommodating cavity 5301 through the opening, the heat exchange tubes 20 at both ends of the fin heat exchanger 100 can be respectively located in the limiting grooves 5341 on the two first side plates 5321. The fin heat exchanger 100 is moved in the limiting grooves 5341 along the first direction X toward the outlet 5303 until the heat exchange tubes 20 abut against the bottom of the limiting grooves 5341.

[0083] The limiting grooves 5341 on the two first side plates 5321 can limit the placement position of the fin heat exchanger 100 in the accommodating cavity 5301. By limiting the extension direction of the limiting grooves 5341, that is, the first direction X, the angle between the fin heat exchanger 100 and the plane where the bottom plate 533 is located can be limited.

[0084] Therefore, the angle between the first direction X and the plane of the bottom plate 533 is an acute angle, which can also ensure that the angle between the fin heat exchanger 100, which is confined within the limiting groove 5341, and the plane of the bottom plate 533 is an acute angle. This not only ensures the stability of the position of the fin heat exchanger 100 within the container 53, but also allows excess moisture-absorbing material on the fin heat exchanger 100 to be removed, preventing excess moisture-absorbing material from accumulating on the fin heat exchanger 100.

[0085] In other embodiments, the limiting portion 534 may be a slide rail located on a side where the two first side plates 5321 are close to each other. The extending direction of the slide rail is the first direction X.

[0086] At this point, the heat exchange tubes 20 at both ends of the fin heat exchanger 100 can be slidably connected to the chutes on the two first side plates 5321. The fin heat exchanger 100 is slid from the inlet 5302 along the first direction X toward the outlet 5303 until it contacts the bottom of the chutes, and then stops moving.

[0087] Therefore, under the restriction of the slide groove, the angle between the fin heat exchanger 100 and the plane where the bottom plate 533 is located is an acute angle.

[0088] In some embodiments, the angle between the first direction X and the plane where the bottom plate 533 is located may be greater than or equal to 30° and less than or equal to 60°.

[0089] Specifically, the angle between the first direction X and the plane where the bottom plate 533 is located may be 30°, 35°, 40°, 45°, 50° or 60°.

[0090] If the angle between the first direction X and the plane where the bottom plate 533 is located is too small, after the fin heat exchanger 100 is placed in the accommodating cavity 5301, when the excess moisture-absorbing material on the fin heat exchanger 100 is extracted, the effect is similar to Figure 4 If the angle between the first direction X and the plane where the bottom plate 533 is located is too large, after the fin heat exchanger 100 is placed in the accommodating cavity 5301, when the excess moisture-absorbing material on the fin heat exchanger 100 is extracted, the effect is similar to that of Figure 5 The heat exchanger 100 is placed vertically.

[0091] In both of the above two situations, a moisture absorbing layer with good effect cannot be coated on the fin heat exchanger 100 , so it is necessary to select a suitable angle between the first direction X and the plane where the bottom plate 533 is located.

[0092] In some embodiments, as Figure 6 and Figure 7 As shown, along the first direction X, the inlet 5302 and the outlet 5303 can be located on both sides of the limiting groove 5341.

[0093] In this way, the fin heat exchanger 100 can allow the heat exchange tube 20 to enter the accommodating cavity 5301 from the inlet 5302 in the limiting groove 5341 along the first direction X. Finally, when the hygroscopic material is extracted from the outlet 5303, the airflow enters the accommodating cavity 5301 from the inlet 5302 and is blown out from the outlet 5303.

[0094] In other embodiments, the fin heat exchanger 100 can be tilted by other structures. Figure 10 As shown, Figure 10 for Figure 9 A partial enlarged schematic diagram of the structure at A, coating tool 50 ( Figure 6 ) also includes a reinforcing member 54 and a connecting member 55. The reinforcing member 54 is located in the limiting groove 5341 away from the top plate 531 ( Figure 6 ) at one end, at least partially obstructing the limiting groove 5341. A plurality of connecting members 55 penetrate the reinforcing member 54 and are connected to the first side plate 5321. The plurality of connecting members 55 are located on the first side plate 5321 on both sides of the limiting groove 5341 along the second direction Y, where the second direction Y is perpendicular to the first direction X.

[0095] The reinforcement member 54 can be fixed to the first side plate 5321 via the connector 55. At least a portion of the reinforcement member 54 can block a portion of the limiting groove 5341, preventing the length of the limiting groove 5341 on the first side plate 5321 from being too long, thereby preventing the structure of the first side plate 5321 from being unstable. This is because the fin heat exchanger 100 can move within the limiting groove 5341 until the entire fin heat exchanger 100 is located within the accommodation space.

[0096] Therefore, the length of the limiting groove 5341 in the first direction X must be greater than or equal to the length of the fin heat exchanger 100 in the first direction X, so that the distance between the bottom of the limiting groove 5341 and the bottom plate 533 is shorter, making it easy for the first side plate 5321 to be separated into two structures by the limiting groove 5341, resulting in deformation and damage.

[0097] Especially when a pulling force is applied to the accommodating member 53, the structures on both sides of the upper limit groove 5341 of the first side plate 5321 are easily deformed under the action of the pulling force.

[0098] Furthermore, when air flows from the inlet 5302 to the outlet 5303 in the accommodating chamber 5301, the high velocity of the airflow causes the air pressure in the accommodating chamber 5301 to be low. At this time, the air pressure on the side where the two first side panels 5321 are moving away from each other forces the two first side panels 5321 to move toward each other, causing them to deform.

[0099] Therefore, the reinforcing member 54 can stabilize the strength of the upper limit groove 5341 of the first side plate 5321, making it less susceptible to deformation due to external influences, thereby preventing the first side plate 5321 from affecting the extraction of the hygroscopic material of the fin heat exchanger 100 in the accommodating cavity 5301.

[0100] At the same time, the reinforcement 54 can also adjust the position of the fin heat exchanger 100 in the accommodating cavity 5301. When the heat exchange tube 20 of the fin heat exchanger 100 moves in the first direction X in the limiting groove 5341, it will eventually conflict with the reinforcement 54 and then stop moving, thus fixing the position of the fin heat exchanger 100.

[0101] Therefore, by adjusting the position of the reinforcement member 54 on the limiting groove 5341 , the position at which the fin heat exchanger 100 stops moving can be adjusted, thereby adjusting the position of the fin heat exchanger 100 in the accommodating cavity 5301 .

[0102] For example, the connector 55 may be a screw and a nut. The screw and nut connection method is simple and stable, and is suitable for the connection between the reinforcement member 54 and the first side plate 5321.

[0103] In some embodiments, as Figure 11 As shown, Figure 11 for Figure 6 A partial enlarged schematic diagram of the structure at B, coating tool 50 ( Figure 7 ) may further include a blocking member 56. The blocking member 56 is movably mounted on the first side plate 5321 and is located at one end of the limiting groove 5341 near the inlet 5302. The blocking member 56 is used to block a portion of the limiting groove 5341 and is also used to stagger the position of the limiting groove 5341.

[0104] After the fin heat exchanger 100 is placed in the accommodating cavity 5301, the blocking member 56 can be used to seal the end of the limiting groove 5341 near the inlet 5302. This prevents the heat exchange tube 20 on the fin heat exchanger 100 from moving outside the accommodating cavity 5301 along the first direction X. Therefore, the blocking member 56 can further secure and limit the stability of the position of the fin heat exchanger 100 after it is installed.

[0105] Exemplarily, the blocking member 56 can be connected to the first side plate 5321 on both sides of the limiting groove 5341. In this way, the blocking member 56 can play the same effect as the reinforcing member 54, so that the first side plate 5321 is not easily deformed by external influences.

[0106] In other embodiments, the blocking member 56 may also be installed on the top plate 531 , at one end of the inlet 5302 of the top plate 531 close to the first side plate 5321 . The blocking member 56 is used to block a portion of the inlet 5302 .

[0107] At this time, the blocking member 56 can also limit the position of the fin heat exchanger 100 after the fin heat exchanger 100 is placed in the accommodating cavity 5301. The blocking member 56 can also strengthen the strength of the top plate 531 so that it is not easily deformed by external influences.

[0108] In some embodiments, as Figure 11 As shown, the coating tool 50 may further include a rotating shaft 57 and a limiting member 58. The rotating shaft 57 is disposed on the first side plate 5321, located at one end of the limiting groove 5341 near the outlet 5303, and located on one side of the limiting groove 5341 along the second direction Y. The limiting member 58 is disposed on the first side plate 5321, located at one end of the limiting groove 5341 near the outlet 5303, and located on the side of the limiting groove 5341 away from the first rotating shaft 57 along the second direction Y.

[0109] Among them, one end of the blocking member 56 is passed through the rotating shaft 57 and is rotatably connected to the rotating shaft 57, and the other end is located on the side of the limiting member 58 close to the top plate 531, and an avoidance groove is provided on the side of the blocking member 56 close to the limiting member 58, and the limiting member 58 is clamped in the avoidance groove.

[0110] The blocking member 56 is rotatably connected to the rotating shaft 57, so that the blocking member 56 can open and close the limiting groove 5341. When the avoidance groove on the blocking member 56 is engaged with the limiting member 58, the blocking member 56 is in a state of closing the limiting groove 5341 on the side close to the inlet 5302, thereby strengthening the strength of the first side plate 5321.

[0111] When the blocking member 56 does not block the limiting groove 5341 , the blocking member 56 is in a state of opening the limiting groove 5341 on the side close to the inlet 5302 , so that the fin heat exchanger 100 can be placed into the accommodating cavity 5301 from the inlet 5302 .

[0112] In other embodiments, the two first side panels 5321 may have engaging grooves on either side of the limiting groove 5341 near one end of the inlet 5302. Accordingly, the limiting member 58 may have engaging members. When the engaging grooves engage the engaging members, the blocking member 56 can close the limiting groove 5341 near the inlet 5302, thereby limiting the position of the fin heat exchanger 100.

[0113] In some embodiments, as Figure 12 As shown, Figure 12 for Figure 6 In another structural diagram of the coating tool 50 from another perspective, the side panels 532 may further include two second side panels 5322 and a plurality of reinforcing panels 5323. The two second side panels 5322 are positioned between the two first side panels 5321 and spaced apart from each other. The plurality of reinforcing panels 5323 are positioned on the sides of the two second side panels 5322 that are spaced apart from each other. A portion of the reinforcing panels 5323 is connected to the second side panels 5322, and another portion is connected to the bottom panel 533.

[0114] The two second side plates 5322 are located between the two first side plates 5321 and, together with the top plate 531 and the bottom plate 533, form a receiving cavity 5301 ( Figure 7 In order to minimize the space in the accommodating cavity 5301, the angle between the plane where the two second side panels 5322 are located and the plane where the bottom plate 533 is located can be the same as the angle between the first direction X and the plane where the bottom plate 533 is located.

[0115] In this case, the two second side panels 5322 need to be tilted. To ensure the stability of the tilted second side panels 5322, multiple reinforcing plates 5323 can be installed on the sides of the two second side panels 5322 that are away from each other. The reinforcing plates 5323 are connected to both the second side panels 5322 and the bottom panel 533, firmly securing the second side panels 5322 to the bottom panel 533 and strengthening the second side panels 5322, allowing them to maintain stability even at the tilted angle.

[0116] In some embodiments, the second side plate 5322 can form a receiving groove with the two first side plates 5321, the top plate 531, and the bottom plate 533. The surface of the second side plate away from the receiving cavity serves as the bottom of the receiving groove. The reinforcing plate 5323 is located in the mounting groove.

[0117] At this time, the reinforcing plate 5323 is located in the receiving groove and can simultaneously contact and connect with the top plate 531, the second side plate 5322 and the bottom plate 533. In this way, the reinforcing plate 5323 can further enhance the stability of the position of the two second side plates 5322.

[0118] Specifically, when applying the hygroscopic coating to the surface of the fin heat exchanger 100 using the coating tool 50, the fin heat exchanger 100 can be weighed first and the weighing result recorded. The fin heat exchanger 100 can then be placed into a soaking chamber containing the hygroscopic material. After the fins 10 are completely immersed in the hygroscopic material, the fins 10 are removed and the excess hygroscopic material is removed.

[0119] The fin heat exchanger 100 is then placed into the coating tool 50 within the vacuum coating apparatus 60. The vacuum coating apparatus 60 is then activated to remove excess hygroscopic material from the fin heat exchanger 100. After a predetermined time has elapsed, the vacuum coating is complete, and the fin heat exchanger 100 is removed and weighed. The weight of the hygroscopic material applied to the fin heat exchanger 100 is then determined to determine if the coating amount is acceptable.

[0120] If the coating amount is qualified, the coating of the moisture absorbing layer of the fin heat exchanger 100 is completed. If the coating amount is not up to standard, the fin heat exchanger 100 is further coated according to the above process.

[0121] The above is only a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or replacements within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A coating tool, characterized in that: The coating tool comprises: A container, wherein a container cavity is formed inside the container; the container cavity is used to arrange a fin heat exchanger; the container is provided with an inlet and an outlet; the inlet and the outlet are both connected to the container cavity; The accommodating member has a placement surface, and the accommodating member is used to arrange the fin heat exchanger in the accommodating cavity at an angle relative to the placement surface, and the angle between the fin heat exchanger and the placement surface is an acute angle.

2. The coating tool according to claim 1, characterized in that: The receiving member comprises: a top plate, wherein the top plate is provided with the inlet; a side plate, located on one side of the top plate, arranged around a circumference of the top plate, and connected to the top plate; and a bottom plate, located on a side of the side plate away from the top plate; the bottom plate is provided with the outlet; The side plate forms a limiting portion; the limiting portion is used to fix the fin heat exchanger so that the fin heat exchanger is tilted relative to the bottom plate, and the angle between the fin heat exchanger and the bottom plate is an acute angle.

3. The coating tool according to claim 2, characterized in that: The side panel comprises: Two first side panels, the two first side panels are spaced apart from each other; a limiting groove is provided on the first side panel; the limiting portion is the limiting groove; the limiting groove extends along the first direction, with one end passing through the first side panel; The inlet penetrates the top plate along the arrangement direction of the two first side plates, one end of the inlet is communicated with the limiting groove of one first side plate, and the other end of the inlet is communicated with the limiting groove of the other first side plate; The angle between the first direction and the plane where the bottom plate is located is an acute angle.

4. The coating tool according to claim 3, characterized in that: The coating tool also includes: a reinforcing member, the reinforcing member being located at an end of the limiting groove away from the top plate and at least partially covering a portion of the limiting groove; and a plurality of connecting members, wherein the plurality of connecting members pass through the reinforcing member and are connected to the first side plate; Wherein, along the second direction, the plurality of connecting members are respectively located on both sides of the limiting groove, and the second direction is perpendicular to the first direction.

5. The coating tool according to claim 3, characterized in that: The coating tool also includes: A blocking member is movably mounted on the first side panel and is located at one end of the limiting groove close to the inlet; the blocking member is used to block a portion of the limiting groove and is also used to be staggered with the limiting groove.

6. The coating tool according to claim 5, characterized in that: The coating tool also includes: a rotating shaft, the rotating shaft being disposed on the first side plate, located at an end of the limiting groove close to the outlet, and located on one side of the limiting groove along the second direction; and a limiting member, the limiting member being provided on the first side plate, located at an end of the limiting groove close to the outlet, and located on a side of the limiting groove away from the rotation axis along the second direction; Among them, one end of the blocking member is passed through the rotating shaft and is rotatably connected to the rotating shaft, and the other end is located on the side of the limiting member close to the top plate, and an avoidance groove is provided on the side of the blocking member close to the limiting member, and the limiting member is clamped in the avoidance groove.

7. The coating tool according to claim 3, characterized in that: The side panel also includes: two second side panels, the two second side panels being located between the two first side panels and spaced apart from each other; and A plurality of reinforcing plates are arranged on a side of the two second side plates that is away from each other; a portion of the reinforcing plate is connected to the second side plate, and another portion is connected to the bottom plate.

8. The coating tool according to claim 7, characterized in that: The second side plate, the two first side plates, the top plate and the bottom plate form a receiving groove; the surface of the second side plate away from the receiving cavity is the bottom of the receiving groove; the reinforcing plate is located in the receiving groove.

9. The coating tool according to claim 3, characterized in that: An angle between the first direction and the plane where the bottom plate is located is greater than or equal to 30° and less than or equal to 60°.

10. The coating tool according to claim 3, characterized in that: Along the first direction, the inlet and the outlet are located on both sides of the limiting groove.

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