Flow dividing and collecting device, fan coil and air conditioner indoor unit

Abstract

The invention discloses a flow distributing and collecting device which comprises a shell and a conducting piece, the shell is provided with a liquid inlet cavity and a liquid outlet cavity which are independent of each other, the liquid inlet cavity is used for distributing liquid to heat exchange pipes of a plurality of heat exchangers, and the liquid outlet cavity is used for collecting the liquid of the heat exchange pipes. And the conducting piece is arranged in the liquid inlet cavity and used for conducting the two heat exchange pipes in the liquid inlet cavity, and / or the conducting piece is arranged in the liquid outlet cavity and used for conducting the two heat exchange pipes in the liquid outlet cavity. Meanwhile, the invention further discloses a fan coil applying the flow dividing and collecting device and an air conditioner indoor unit applying the fan coil, according to the technical scheme, the problem that the flow resistance is large when internal circulating fluid flows through a metal water collecting head can be effectively solved, the circulation efficiency is improved, and the service life of the air conditioner indoor unit is prolonged. And the service life of the air conditioning unit is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of fan coil units, and in particular to a distributor and collector, a fan coil unit, and an air-conditioning indoor unit. Background Art

[0002] In the related art, current fan coil units typically use metal water collecting heads to divert and integrate the fluid circulating inside them. Multiple outlet and inlet branches are bent and welded onto the existing metal water collecting heads, and these branches (hereinafter collectively referred to as branches) are all connected to the heat exchanger. However, during the bending process, the flow channels inside the branches inevitably deform. This deformation causes the cross-sectional area of the flow channel to change in local areas and no longer remain uniform. When the internal circulating fluid flows through these bends, the flow direction of the fluid is forced to change frequently, resulting in turbulence. According to the principles of fluid mechanics, turbulence greatly increases the friction between the fluid and the pipe wall, resulting in a significant increase in flow resistance. The increase in flow resistance not only reduces the overall operating efficiency of the fan coil system, requiring more power to maintain the same flow rate, increasing energy costs, but also may cause additional pressure on power equipment such as pumps in the air conditioner indoor unit if it is in a high flow resistance state for a long time, shortening the service life of the power equipment. Summary of the Invention

[0003] The embodiment of the present application provides a manifold, a fan coil unit and an air-conditioning indoor unit, which can very effectively solve the problem of large flow resistance of the internally circulating fluid when flowing through the metal water collecting head, improve the circulation efficiency, and help to increase the service life of the air-conditioning unit.

[0004] In a first aspect, an embodiment of the present application provides a manifold for use in an indoor unit of an air conditioner, wherein the indoor unit includes a heat exchanger, the heat exchanger includes a heat exchange tube, and the manifold includes:

[0005] The shell has a liquid inlet cavity and a liquid outlet cavity which are independent of each other, wherein the liquid inlet cavity is used to divert the liquid to the plurality of heat exchange tubes, and the liquid outlet cavity is used to collect the liquid in the plurality of heat exchange tubes; and

[0006] The conducting member is arranged in the liquid inlet cavity and used for conducting the two heat exchange tubes in the liquid inlet cavity, and / or is arranged in the liquid outlet cavity and used for conducting the two heat exchange tubes in the liquid outlet cavity.

[0007] In one embodiment, the housing further comprises:

[0008] Upper cover;

[0009] a lower cover connected to the upper cover; and

[0010] a separator, provided on the upper cover or the lower cover, and cooperating with the upper cover and the lower cover to form the liquid inlet cavity and the liquid outlet cavity;

[0011] Wherein, the conductive member is provided on at least one of the upper cover, the lower cover and the separator.

[0012] In one embodiment, the partition divides the internal space enclosed by the upper cover and the lower cover into the liquid inlet cavity and the liquid outlet cavity along the horizontal direction or the vertical direction.

[0013] In one embodiment, the conductive member includes:

[0014] A first conducting member, disposed in the liquid inlet cavity, for conducting the two heat exchange tubes; and

[0015] The second conducting member is arranged in the liquid outlet cavity and is used to conduct the two heat exchange tubes.

[0016] In one embodiment, the lower cover has a plurality of pipe openings for the heat exchange pipes to pass through; wherein,

[0017] The plurality of the pipe openings are arranged along a row direction, and the conductive member connects two adjacent pipe openings along the row direction; or,

[0018] A plurality of the pipe openings are arranged along a column direction, and the conductive member connects two adjacent pipe openings along the column direction; or,

[0019] The plurality of pipe openings are arranged in a row direction and in a column direction, some of the conductive members connect two adjacent pipe openings along the row direction, and the remaining conductive members connect two adjacent pipe openings along the column direction.

[0020] In one embodiment, the partition divides the internal space enclosed by the upper cover and the lower cover into the liquid inlet cavity and the liquid outlet cavity along a horizontal direction, and the column direction is parallel to the extension direction of the partition.

[0021] In one embodiment, the separator divides the internal space enclosed by the upper cover and the lower cover into the liquid inlet cavity and the liquid outlet cavity along the horizontal direction, and the flow divider further includes:

[0022] The jumper conductive member is provided through the partition, and a portion thereof is located in the liquid inlet cavity and is communicated with one of the heat exchange tubes, and the remaining portion is located in the liquid outlet cavity and is communicated with another of the heat exchange tubes.

[0023] In one embodiment, the jumper conductive parts are configured in plurality, and a plurality of the conductive parts are configured in both the liquid inlet cavity and the liquid outlet cavity. The plurality of conductive parts, the plurality of heat exchange tubes and the plurality of jumper conductive parts constitute a plurality of heat exchange channels, and one end of each of the heat exchange channels is connected to the liquid inlet cavity, and the other end is connected to the liquid outlet cavity.

[0024] In one embodiment, the separator divides the internal space enclosed by the upper cover and the lower cover into the liquid inlet cavity and the liquid outlet cavity along the vertical direction, and the flow divider further includes:

[0025] A water inlet joint is provided on the upper cover;

[0026] a first flow guide member, wherein the internal flow passage of the water inlet joint is isolated from the liquid outlet cavity by the first flow guide member at a position where the internal flow passage passes through the liquid outlet cavity; and

[0027] The second flow guide is used to separate the liquid flowing out of the heat exchange tube from the liquid in the liquid inlet cavity and guide the liquid through the liquid outlet cavity to the liquid outlet cavity.

[0028] In one embodiment, the current divider and collector further comprises:

[0029] The sealing member is at least partially sandwiched between the upper cover and the lower cover, and is provided with a plurality of liquid holes, each of the liquid holes being connected to the corresponding pipe opening.

[0030] In a second aspect, an embodiment of the present application provides a fan coil unit, comprising:

[0031] The above-mentioned current divider;

[0032] The heat exchanger has a plurality of heat exchange tubes inside, and the plurality of heat exchange tubes are all plugged into the shell, and the conducting member can conduct two of the heat exchange tubes.

[0033] In one embodiment, the heat exchanger further comprises:

[0034] The lower plate is arranged on the side of the heat exchanger facing away from the distributor and collector, and is used for being installed and fixed on the casing of the indoor unit of the air conditioner.

[0035] In a third aspect, an embodiment of the present application provides an air conditioner indoor unit, comprising:

[0036] The fan coil unit described above;

[0037] The heat exchanger is arranged inside the casing and connected to the casing, and the flow distributor is arranged outside the casing and connected to the casing.

[0038] In one embodiment, the air conditioner indoor unit further includes:

[0039] A water receiving tray is provided at the bottom of the heat exchanger and extends out of the casing on a side close to the manifold, so that the upward projection of the water receiving tray can cover the manifold.

[0040] Based on the above embodiments, the flow divider and collector proposed in the embodiments of the present application includes a housing and a conducting member. The housing has a mutually independent liquid inlet and outlet chambers. The liquid inlet chamber is used to divert liquid to the heat exchange tubes of multiple heat exchangers, and the liquid outlet chamber is used to collect liquid from multiple heat exchange tubes. The conducting member is disposed within the liquid inlet chamber and is used to connect the two heat exchange tubes within the liquid inlet chamber, and / or, is disposed within the liquid outlet chamber and is used to connect the two heat exchange tubes within the liquid outlet chamber.

[0041] Compared with the related technology, the technical solution of the present application cooperates with the liquid inlet cavity and the liquid outlet cavity of the conductive part and the shell, so that the liquid can be directly and smoothly diverted to the multiple heat exchange tubes of the heat exchanger, and finally collected from the multiple heat exchange tubes, thereby achieving the purpose of replacing the metal water collecting head, and can very effectively solve the problem of large flow resistance of the internal circulating fluid when flowing through the metal water collecting head, improve the circulation efficiency, and help to increase the service life of the air-conditioning unit. It also helps the heat exchange efficiency of the entire fan coil unit and reduces local overheating or overcooling caused by uneven heat exchange. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0043] Figure 1 This is an overall structural diagram of a fan coil unit of the present invention;

[0044] Figure 2 This is a partial assembly diagram of a fan coil unit according to the present invention from a first perspective;

[0045] Figure 3 This is a partial assembly diagram of a fan coil unit according to the present invention from a second viewing angle;

[0046] Figure 4 This is a schematic top view of a fan coil unit according to the present invention;

[0047] Figure 5 for Figure 4 Schematic diagram of the cross section at AA in the middle;

[0048] Figure 6 This is a schematic diagram of the flow path of a flow divider and collector according to the present invention;

[0049] Figure 7 This is an exploded schematic diagram of a second structural form of a current distributor and collector according to the present invention;

[0050] Figure 8 This is a schematic top view of a second structural form of a current distributor and collector according to the present invention;

[0051] Figure 9 for Figure 8 Schematic cross-section at CC;

[0052] Figure 10 Schematic diagram of the structure of the sealing member of the present invention;

[0053] Figure 11 This is an exploded schematic diagram of a third structural form of a current distributor and collector according to the present invention;

[0054] Figure 12 This is a schematic top view of a third structural form of a current distributor and collector according to the present invention;

[0055] Figure 13 for Figure 12 Schematic diagram of the cross section at BB in the middle.

[0056] Description of Figure Numbers:

[0057] 100-fan coil unit, 10-manifold, 1-housing, 10a-liquid inlet cavity, 10b-liquid outlet cavity, 11-upper cover, 11a-water inlet hole, 11b-water outlet hole, 11c-exhaust port, 111-upper top wall, 112-upper side wall, 1131-first protrusion, 1132-second protrusion, 1133-third protrusion, 114-outer sealing layer, 115-upper embedded groove, 12-lower cover, 12a-pipe opening, 13-conducting member, 131-first conducting member, 132-second conducting member, 133-conducting inner cavity, 14- Sealing part, 141-upper sealing part, 142-inner sealing part, 143-lower sealing part, 144-liquid hole, 151-plastic part, 152-reinforcement part, 16-upper anti-corrosion shell, 1611-upper shell body, 1612-outer convex edge, 162-lower anti-corrosion part, 1621-lower shell body, 1622-outer extension part, 17-bridge conduction part, 171-bridge inner cavity, 19-separator, 2-exhaust valve, 21-valve body, 22-valve seat, 3-water inlet joint, 31-water inlet interface, 4-water outlet joint, 41-water outlet interface,

[0058] 20-heat exchanger, 21-heat exchange tube, 20a-upper plate, 20b-lower plate,

[0059] 200-water tray, 300-housing.

[0060] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0061] In order to make the purpose, technical solutions and advantages of this application clearer, the following part will further describe the embodiments of this application in detail with reference to the accompanying drawings.

[0062] When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application, as detailed in the appended claims.

[0063] In the description of this application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances. In addition, in the description of this application, unless otherwise specified, "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the previous and subsequent associated objects are in an "or" relationship.

[0064] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items.

[0065] This application proposes an air conditioner indoor unit. In modern life, air conditioner indoor units have become essential devices for regulating indoor environmental parameters such as temperature and humidity, and are widely used in various locations. From bedrooms and living rooms in homes to commercial spaces such as offices, shopping malls, and hotels, and even public buildings such as hospitals and schools, air conditioner indoor units play an indispensable role. They create a comfortable indoor environment and meet the temperature, humidity, and air circulation requirements of various scenarios.

[0066] Typically, an air conditioner indoor unit includes a housing and a fan coil unit 100 mounted on the housing. As one of the core components of the air conditioner indoor unit, the fan coil unit 100 primarily regulates the indoor air temperature through heat exchange and promotes air circulation. Specifically, the fan coil unit 100 includes a fan and a heat exchanger 20 disposed within the housing. The heat exchanger 20 has a plurality of tightly arranged heat exchange tubes 21 within the housing. The heat exchanger 20 is disposed within the housing and connected to the housing (e.g., by screws, snaps, or welding).

[0067] When the liquid (water or refrigerant) circulating in the indoor unit of the air conditioner flows through the heat exchange tube 21, the heat exchange tube 21 will exchange heat with the indoor air flowing through its surface. If the heat exchange tube 21 is filled with low-temperature liquid, when the indoor air passes through the surface of the heat exchange tube 21, according to the principle of heat transfer, the heat of the indoor air with a higher temperature will spontaneously transfer to the cold water. In this process, the heat will be taken away by the cold water, and the air temperature will decrease as the heat is lost, achieving a cooling effect; if the heat exchange tube 21 is filled with high-temperature liquid, the air will absorb heat from the hot water, the temperature will rise, and a heating effect will be achieved. At the same time, the fan equipped with the fan coil 100 will blow the air that has undergone heat exchange into the room, accelerate the circulation of the indoor air, and make the temperature of each area of the room quickly and evenly distributed, thereby providing users with a comfortable indoor environment experience.

[0068] In the related art, the current fan coil unit 100 usually uses a metal water collecting head when diverting and integrating the fluid circulating inside it. However, multiple outlet branch pipes and water inlet branch pipes are bent and welded on the existing metal water collecting head, and are connected to the heat exchanger 20 through the outlet branch pipes and the water inlet branch pipes (hereinafter collectively referred to as branches). However, during the bending process, the flow channel inside the branch pipe is easily deformed, causing the local cross-sectional area to change and no longer be uniform. The circulating fluid flows through the bending part, and the flow direction changes frequently, generating turbulence. According to fluid mechanics, turbulence increases the friction between the fluid and the pipe wall, and the flow resistance increases significantly. This not only reduces the operating efficiency of the fan coil unit 100, but also brings additional pressure to the air conditioner indoor unit, shortening the service life of the equipment.

[0069] In view of the defects of the above-mentioned existing metal water collecting heads, this application provides a fan coil unit 100, please refer to Figures 1 to 6The fan coil unit 100 also includes a distributor 10, which includes a shell 1, wherein the shell 1 has a liquid inlet chamber 10a and a liquid outlet chamber 10b that are independent of each other, and can be made by an integrated molding process, or can be formed by multi-component assembly, for example, the shell 1 includes an upper cover 11 and a lower cover 12, and the lower cover 12 is connected to the upper cover 11, and the connection can be selected as a detachable connection of at least one of a screw connection, a snap connection, and a magnetic connection, and can also be selected as a welding connection. As long as it can form a liquid inlet chamber 10a and a liquid outlet chamber 10b that are independent of each other. It can be understood that the above-mentioned "independent of each other" means that the liquid inlet chamber 10a and the liquid outlet chamber 10b are separated from each other and work independently to ensure that the liquid flows along a predetermined path.

[0070] Please follow Figure 6 As shown, the shell 1 also includes a partition 19 disposed inside the shell 1. The partition 19 can be a straight plate structure, or a plate structure in the shape of an arc, a wave, or a broken line. The partition 19 is not limited in this application. The partition 19 can be disposed in the internal chamber of the integral shell 1 to divide the internal chamber of the shell 1 into a liquid inlet chamber 10a and a liquid outlet chamber 10b, or it can cooperate with the upper cover 11 and the lower cover 12 to form the liquid inlet chamber 10a and the liquid outlet chamber 10b. It should be noted that the partition 19 is preferably on one of the upper cover 11 and the lower cover 12, that is, one of the upper cover 11 and the lower cover 12 is integrally formed with the partition 19. It can also be a separate component, and both the upper cover 11 and the lower cover 12 are provided with a partition groove for snapping the partition 19.

[0071] In order to facilitate the centralized connection of the plurality of heat exchange tubes 21 of the heat exchanger 20 to the housing 1, the assembly efficiency and convenience of the fan coil 100 and the air conditioner indoor unit are improved, and the overall structure of the fan coil 100 is made more compact, thereby reducing the space occupancy. Figure 5 and Figure 6 As shown, multiple heat exchange tubes 21 are connected to the same side wall of the housing 1. When the upper cover 11 and the lower cover 12 are assembled to form the housing 1, the multiple heat exchange tubes 21 are plugged into the lower cover 12 of the housing 1. After assembly, the bottom surface of the lower cover 12 is close to or abuts the heat exchanger 20.

[0072] In this example, please follow Figure 6As shown, the partition 19 preferably divides the internal space enclosed by the upper cover 11 and the lower cover 12 into a liquid inlet chamber 10a and a liquid outlet chamber 10b in the horizontal direction. At this time, the partition 19 is arranged perpendicular to the lower bottom surface of the lower cover 12, and the divided liquid inlet chamber 10a and the liquid outlet chamber 10b are on the same horizontal height level. In other embodiments, the partition 19 preferably divides the internal space enclosed by the upper cover 11 and the lower cover 12 into a liquid inlet chamber 10a and a liquid outlet chamber 10b in the vertical direction. It can be understood that the vertical direction is a direction perpendicular to the lower bottom surface of the lower cover 12. At this time, the partition 19 is arranged parallel to the lower bottom surface of the lower cover 12, and the divided liquid inlet chamber 10a and the liquid outlet chamber 10b are stacked in the vertical direction.

[0073] Furthermore, please combine Figures 3 to 6 As shown, the manifold 10 further includes an inlet connector 3 and an outlet connector 4 provided on the housing 1. The inlet connector 3 communicates with the liquid inlet chamber 10a, while the outlet connector 4 communicates with the liquid outlet chamber 10b. To prevent the external water inlet pipe connected to the inlet connector 3 and the external water outlet pipe connected to the outlet connector 4 from interfering with the installation of the heat exchanger 20, the inlet connector 3 and the outlet connector 4 are both mounted on the same side wall of the housing 1, and the side wall on which the inlet connector 3 and the outlet connector 4 are mounted is opposite the side wall on which the multiple heat exchange tubes 21 are mounted. When the upper cover 11 and the lower cover 12 are assembled to form the housing 1, the inlet connector 3 and the outlet connector 4 are both plugged into the upper cover 11 of the housing 1.

[0074] It should be noted that when the partition 19 horizontally divides the internal space enclosed by the upper cover 11 and the lower cover 12 into a liquid inlet chamber 10a and a liquid outlet chamber 10b, the upper cover 11 is provided with a water inlet through-hole 11a that matches the shape and size of the water inlet connector 3. The water inlet connector 3 is plugged into the water inlet through-hole 11a, and the external water inlet pipe will directly connect to the liquid inlet chamber 10a through the water inlet interface 31 of the water inlet connector 3. The liquid will then flow directly through the water inlet interface 31 and fill the liquid inlet chamber 10a. Similarly, the upper cover 11 is also provided with a water outlet through-hole 11b that matches the shape and size of the water outlet connector 4. The water outlet connector 4 is plugged into the water outlet through-hole 11b, and the external water outlet pipe will directly connect to the liquid outlet chamber 10b through the water outlet interface 41 of the water outlet connector 4. The liquid collected in the liquid outlet chamber 10b will then flow directly through the water outlet interface 41 and enter the external water outlet pipe.

[0075] When the partition 19 vertically divides the internal space enclosed by the upper cover 11 and the lower cover 12 into a liquid inlet chamber 10a and a liquid outlet chamber 10b, the manifold 10 further includes a first flow guide and a second flow guide. The first flow guide is provided with a first flow guide channel running through it, and the second flow guide is provided with a second flow guide channel running through it. The first flow guide is provided in the liquid outlet chamber 10b, and the two ends of the first flow guide are respectively in contact with the partition 19 and the upper cover 11. The water inlet interface 31 of the water inlet joint 3 is connected to the liquid inlet chamber 10a through the first flow guide channel. In this way, the internal flow channel of the water inlet joint 3 is isolated from the liquid outlet chamber 10b by the first flow guide at the position where it passes through the liquid outlet chamber 10b. The liquid will flow from the water inlet external pipe through the water inlet interface 31 and the first flow guide in sequence and then fill the liquid inlet chamber 10a, and ensure that the liquid inside the first flow guide channel will not penetrate the liquid inside the liquid outlet chamber 10b.

[0076] The second flow guide is disposed within the liquid inlet chamber 10a, with its two ends respectively contacting the partition 19 and the lower cover 12. The heat exchange tube 21 is connected to the liquid outlet chamber 10b via the second flow guide. This separates the liquid flowing out of the heat exchange tube 21 from the liquid within the liquid inlet chamber 10a, preventing the liquid within the second flow guide from interpenetrating with the liquid within the liquid inlet chamber 10a. The liquid is then guided through the liquid inlet chamber 10a and into the liquid outlet chamber 10b, ultimately flowing through the water outlet port 41 into the external water outlet pipe.

[0077] It is additionally noted here that the above-mentioned manifold 10 is configured as a liquid inlet chamber 10a on the lower chamber close to the heat exchanger 20, and the upper chamber on the side facing away from the heat exchanger 20 is configured as a liquid outlet chamber 10b. Therefore, the liquid will flow from the water inlet external pipe through the water inlet interface 31 and the first flow guide channel in sequence and then be filled into the liquid inlet chamber 10a, while the liquid flowing out of the heat exchange tube 21 passes through the liquid inlet chamber 10a through the second flow guide channel and is filled into the liquid outlet chamber 10b. The distributor 10 of the present application can be configured to have the lower chamber on the side close to the heat exchanger 20 as the liquid outlet chamber 10b according to design requirements or structural design, and the upper chamber on the side facing away from the heat exchanger 20 as the liquid inlet chamber 10a. At this time, the liquid will first be filled into the liquid inlet chamber 10a from the water inlet external pipe and pass through the liquid outlet chamber 10b through the first guide channel before flowing into the heat exchange tube 21. The liquid flowing out of the heat exchange tube 21 will first be filled into the liquid outlet chamber 10b and pass through the liquid inlet chamber 10a through the second guide channel before flowing into the water outlet interface 41 of the water outlet joint 4.

[0078] Understandably, please combine Figures 1 to 6As shown, the manifold 10 is installed outside the housing and connected to the housing. The housing 1 of the manifold 10 is plugged into and mated with the heat exchange tubes 21 of the heat exchanger 20. When liquid enters the liquid inlet chamber 10a through the water inlet port 31 and flows simultaneously into the multiple heat exchange tubes 21, the liquid inlet chamber 10a distributes the liquid to the multiple heat exchange tubes 21. When liquid flows out of the multiple heat exchange tubes 21 into the liquid outlet chamber 10b, the liquid outlet chamber 10b serves to collect the liquid from the multiple heat exchange tubes 21.

[0079] Figure 6 The flow path diagram of the manifold 10 is shown, wherein the solid arrows represent the flow path of the liquid flowing through the conducting member 13, and the dotted arrows represent the flow path of the liquid flowing through the heat exchange tube 21. Figure 5 The liquid flow path shown. The manifold 10 also includes a conductive member 13, which includes a first conductive member 131 and a second conductive member 132. The first conductive member 131 is arranged in the liquid inlet chamber 10a and is used to connect the two heat exchange tubes 21 in the liquid inlet chamber 10a. The second conductive member 132 is arranged in the liquid outlet chamber 10b and is used to connect the two heat exchange tubes 21 in the liquid outlet chamber 10b. On the one hand, the conductive member 13 provides a more direct and smooth flow channel for the liquid, reducing or even avoiding the turbulence and eddy current caused by the complex flow path of the liquid in the liquid inlet chamber 10a and the liquid outlet chamber 10b. The liquid can flow more orderly between the heat exchange tubes 21, reducing the local resistance during the flow process, thereby improving the fluid transportation efficiency and reducing energy loss. On the other hand, the conductive member 13 provides interconnection between two adjacent heat exchange tubes 21, allowing the liquid involved in heat exchange to be more rationally distributed and flowed between the different heat exchange tubes 21, thereby avoiding situations where the liquid flow rate in some heat exchange tubes 21 is too high or too low, thereby making the heat exchange effect of each heat exchange tube 21 more uniform and consistent. At the same time, it also makes the flow rate and flow rate of the liquid in the heat exchange tubes 21 more stable and reasonable, and the contact time and contact area between the liquid and the tube walls of the heat exchange tubes 21 more uniform, which is conducive to the sufficient transfer of heat from the high-temperature side to the low-temperature side. Therefore, the conductive member 13 helps to improve the heat exchange efficiency of the entire fan coil unit 100 and reduce local overheating or overcooling caused by uneven heat exchange.

[0080] It should be noted that the conductive member 13 and the heat exchange tube 21 together form a heat exchange channel. The liquid will flow along the extension direction of the heat exchange channel and exchange heat with the air flowing through the heat exchanger 20. The first conductive member 131 and the second conductive member 132 cooperate with each other to effectively extend the length of the heat exchange channel, that is, to extend the flow path of the liquid. In this way, the heat exchange process of the liquid can be more complete, greatly improving the heat exchange effect. In actual design, based on specific design requirements and structural design schemes, the manifold 10 can be configured with the first conductive member 131 only in the liquid inlet chamber 10a, or with the second conductive member 132 only in the liquid outlet chamber 10b. In addition, the number of the first conductive member 131 and the second conductive member 132 is not specifically limited in this embodiment. The number of the first conductive member 131 and the second conductive member 132 can be flexibly set according to actual design requirements to better adapt to the performance requirements under different working conditions.

[0081] It should also be noted that the conductive member 13 is provided on at least one of the upper cover 11, the lower cover 12 and the partition 19. In this embodiment, Figure 5 As shown, the conductive member 13 is integrally formed on the inner surface of the upper cover 11. In the liquid inlet chamber 10a area, the first conductive member 131 extends from the upper cover 11 to the lower cover 12. When the upper cover 11 is covered on the lower cover 12, the first conductive member 131 will abut against the lower cover 12 and accurately connect the ports of the two heat exchange tubes 21. In the liquid outlet chamber 10b area, the second conductive member 132 also extends from the upper cover 11 to the lower cover 12. When the upper cover 11 is covered on the lower cover 12, the second conductive member 132 also abuts against the lower cover 12 and connects the ports of the two heat exchange tubes 21. Considering that the partition 19 is arranged in a state perpendicular to the lower bottom surface of the lower cover 12, and its position is above the heat exchange tube 21. Under this structural layout, when the liquid wants to flow into or out of the heat exchange tube 21, the partition 19 will form a blockage to the flow of the liquid, as shown in FIG. Figure 6 As shown, the conductive part 13 can also be set on the separator 19. In this way, the two heat exchange tubes 21 located below the separator 19 are connected to each other, ensuring that the liquid can flow smoothly between the two heat exchange tubes 21, thereby ensuring the smooth flow of the liquid path in the entire heat exchange system. At the same time, the conductive part 13, as a part of the separator 19, is equivalent to increasing the effective width of the separator 19. From a mechanical structure point of view, the wider separator 19 has stronger bending and deformation resistance when resisting external forces. When facing liquid pressure shock, the separator 19 can rely on its better mechanical structural characteristics to better maintain its own shape and position, reduce deformation, displacement, etc. caused by pressure shock, and thus greatly enhance the structural stability of the entire distributor 10.

[0082] In other embodiments, the conductive member 13 can also be integrally formed on the inner surface of the lower cover 12, extending from the lower cover 12 toward the upper cover 11. When the upper cover 11 is placed on the lower cover 12, the conductive member 13 will abut against the upper cover 11 and accurately connect the two heat exchange tubes 21. Of course, the conductive member 13 can also be placed only on the partition 19. For example, the partition 19 is arranged horizontally, dividing the internal space enclosed by the upper cover 11 and the lower cover 12 into the liquid inlet chamber 10a and the liquid outlet chamber 10b. A first conductive member 131 is provided on the side of the partition 19 facing the liquid inlet chamber 10a, and a second conductive member 132 is provided on the side of the partition 19 facing the liquid outlet chamber 10b. When the upper cover 11 is placed on the lower cover 12, the first conductive member 131 abuts against the upper cover 11, and the second conductive member 132 abuts against the lower cover 12. Both the first conductive member 131 and the second conductive member 132 can connect to the heat exchange tubes 21, allowing liquid to flow between the two heat exchange tubes 21 through the conductive members 13. In actual design, depending on specific design requirements and structural design solutions, some conductive members 13 can be provided on the upper cover 11, and others can be provided on the lower cover 12.

[0083] Specifically, please Figure 5 As shown, the lower cover 12 of the housing 1 has multiple pipe openings 12a that are compatible with the diameters of the heat exchange tubes 21. The pipe openings 12a are used to allow the heat exchange tubes 21 to pass through and plug into the heat exchange tubes 21. To ensure the stability of the connection between the pipe openings 12a and the heat exchange tubes 21, a tube expansion process can be used to seal the heat exchange tubes 21 and the lower cover 12. The conductive member 13 has a conductive inner cavity 133 disposed therein. The conductive inner cavity 133 covers two adjacent pipe openings 12a in a direction perpendicular to the lower bottom surface of the lower cover 12, and the two adjacent pipe openings 12a are connected to the conductive inner cavity 133. The multiple pipe openings 12a can be arranged in rows, with the conductive member 13 connecting the two adjacent pipe openings 12a in the rows. Alternatively, the multiple pipe openings 12a can be arranged in columns, with the conductive member 13 connecting the two adjacent pipe openings 12a in the columns. Alternatively, multiple pipe openings 12a are arranged in rows and columns, some conductive elements 13 connect two adjacent pipe openings 12a in rows, and the remaining conductive elements 13 connect two adjacent pipe openings 12a in columns.

[0084] With this arrangement, the configuration of the tube ports 12a and the conductive members 13 in an actual fan coil unit 100 can flexibly accommodate various layouts. When the heat exchange tubes 21 are arranged in a simple row or column direction, the conductive members 13 can connect adjacent tube ports 12a along the row or column direction, ensuring smooth liquid flow between the heat exchange tubes 21. For heat exchange tubes 21 arranged in a complex, mixed row and column arrangement, the conductive members 13 can connect some tube ports along the row direction and others along the column direction, precisely adapting to this complex layout and meeting the liquid conductivity requirements in different design scenarios.

[0085] At the same time, by connecting adjacent tube ports 12a through the conductive member 13, liquid entering the liquid inlet chamber 10a can be more evenly distributed to different heat exchange tubes 21, and liquid flowing out of different heat exchange tubes 21 can also be more smoothly collected into the liquid outlet chamber 10b. For example, when the heat exchange tubes 21 are arranged in rows and the conductive members 13 are connected in the row direction, the liquid can be evenly distributed among the heat exchange tubes 21 in the row direction, ensuring that each heat exchange tube 21 can operate under optimal flow conditions, improving overall heat exchange efficiency, and allowing liquid to flow more orderly between the heat exchange tubes 21, reducing local resistance during the flow process, thereby improving fluid transportation efficiency, reducing energy loss, and enhancing the operating performance of the entire fan coil unit 100 and the air conditioner indoor unit.

[0086] Furthermore, whether connected along rows, columns, or a combination of rows and columns, the connection stability of the housing 1 is enhanced. Under the pressure shocks generated by liquid flow, this stable separator 19 can better withstand external forces and more evenly distribute the pressure generated by the liquid acting on the pipes and the connection points to the pipes during flow throughout the housing 1, thereby reducing the risk of loosening or falling off the connection between the housing 1 and the heat exchange tubes 21. For example, in the case of a mixed row and column arrangement, the conductive members 13 in different directions work together to disperse the liquid pressure in the row and column directions, avoiding structural damage caused by excessive local force and further enhancing the stability and reliability of the entire housing 1.

[0087] It should be added that, please Figure 6 As shown, when the divider 19 divides the internal space enclosed by the upper cover 11 and the lower cover 12 into the liquid inlet chamber 10a and the liquid outlet chamber 10b along the horizontal direction, the direction extending along the long side of the lower cover 12 can be defined as the row direction, and the direction extending along the short side of the lower cover 12 can be defined as the longitudinal direction. When the divider 19 divides the internal space enclosed by the upper cover 11 and the lower cover 12 into the liquid inlet chamber 10a and the liquid outlet chamber 10b along the horizontal direction, the row direction is perpendicular to the extension direction of the divider 19 or intersects the divider 19 at an angle, and the column direction is parallel to the extension direction of the divider 19.

[0088] It can be understood that when the partition 19 divides the internal space enclosed by the upper cover 11 and the lower cover 12 into the liquid inlet chamber 10a and the liquid outlet chamber 10b in the horizontal direction, the conductive member 13 connects two adjacent heat exchange tubes 21 in the row direction and / or the column direction, and utilizes the heat exchange tube 21 below the partition 19 to guide the liquid on the liquid inlet chamber 10a side to the liquid outlet chamber 10b side, thereby achieving the purpose of connecting the liquid inlet chamber 10a and the liquid outlet chamber 10b by the heat exchange channel jointly constructed by the conductive member 13 and the heat exchange tube 21.

[0089] In addition to the above methods, as the preferred method of this embodiment, please follow Figure 6 As shown, the manifold 10 further includes a jumper conductor 17, which is disposed through the separator 19. Specifically, the jumper conductor 17 is disposed on the separator 19 and is integrally formed with the separator 19. A jumper inner cavity 171 is provided within the jumper conductor 17, and the jumper inner cavity 171 covers the two pipe openings 12a on both sides of the separator 19, so that a portion of the jumper conductor 17 is located within the liquid inlet cavity 10a and is in communication with one heat exchange tube 21, while the remaining portion is located within the liquid outlet cavity 10b and is in communication with the other heat exchange tube 21. This arrangement can achieve the following effects:

[0090] 1. The conduction member 13 cooperates with the heat exchange tube 21 to guide the liquid from the liquid inlet chamber 10a to the liquid outlet chamber 10b in a relatively indirect manner. The jumper conduction member 17 can directly connect the liquid inlet chamber 10a with the liquid outlet chamber 10b, and establish an efficient liquid flow shortcut between the heat exchange tubes 21 on both sides of the partition 19, which greatly simplifies the flow path of the liquid between the liquid inlet and outlet chambers 10b, shortens the heat exchange cycle, and allows more liquid to participate in the heat exchange process per unit time, thereby improving the heat exchange efficiency of the entire fan coil unit 100, thereby facilitating efficient regulation of the indoor temperature.

[0091] 2. The jumper conductor 17 and the separator 19 are integrally formed, which also enhances the structural strength of the separator 19. At this time, the jumper conductor 17 is equivalent to adding additional support ribs to the separator 19, reinforcing the separator 19 from multiple directions. When the liquid pressure impacts the separator 19, the jumper conductor 17 can share part of the pressure and disperse it to a wider area. For example, in the direction of liquid flow, the jumper conductor 17 can block and buffer part of the impact force, reducing its direct effect on the local area of the separator 19; perpendicular to the direction of liquid flow, the jumper conductor 17 and the separator 19 jointly resist the pressure difference on both sides. Through structural synergy, the load-bearing capacity of the separator 19 in a complex stress environment is enhanced, and the risk of structural damage such as deformation and rupture of the separator 19 is effectively reduced, thereby greatly enhancing the structural strength of the separator 19 and ensuring the stable operation of the distributor 10.

[0092] 3. After the jumper conductor 17 and the separator 19 are integrally formed, it forms an overall structure that works in coordination with the separator 19. In this structural system, the jumper conductor 17 not only connects the heat exchange tube 21, but also closely connects the heat exchange tube 21 and the separator 19. During the operation of the fan coil 100, the liquid flowing in the heat exchange tube 21 will generate a certain amount of pressure and vibration. The jumper conductor 17 can effectively transfer these forces from the heat exchange tube 21 to the separator 19, and at the same time use the structural strength of the separator 19 to disperse and buffer these forces. Therefore, this will significantly improve the stability of the jumper portion between the two heat exchange tubes 21, thereby effectively ensuring that the liquid can flow continuously and smoothly at the jumper position, ensuring that the heat exchange process of the fan coil 100 is efficient and stable.

[0093] 4. Because the jumper conductor 17 can directly connect the heat exchange tubes 21 on both sides of the separator 19, the spatial layout of the heat exchange tubes 21 is more flexible. Based on the overall structure of the heat exchanger 20 and actual needs, the heat exchange tubes 21 can be arranged more compactly, increasing the heat exchange area per unit space, thereby achieving more efficient heat exchange within a limited space. At the same time, the jumper conductor 17 clarifies the conduction path and method between adjacent heat exchange tubes 21, making the arrangement of the heat exchange tubes 21 more regular and orderly. Whether multiple tube ports 12a are arranged in rows, columns, or both rows and columns, the jumper conductor 17 can connect the corresponding heat exchange tubes 21 according to established rules, avoiding the chaotic arrangement of the heat exchange tubes 21 caused by complex and diverse connection methods. This standardized arrangement not only facilitates the manufacture and installation of the heat exchanger 20, but also facilitates subsequent maintenance and inspection. Workers can more clearly understand the connection relationships and fluid flow paths of the heat exchange tubes 21, improving maintenance efficiency and reducing maintenance costs.

[0094] Preferably, if Figure 6As shown, multiple crossover conductors 17 are provided, and multiple conductors 13 are disposed in both the liquid inlet chamber 10a and the liquid outlet chamber 10b. These conductors 13, the heat exchange tubes 21, and the crossover conductors 17 form multiple heat exchange channels, with one end of each heat exchange channel connected to the liquid inlet chamber 10a and the other end connected to the liquid outlet chamber 10b. This allows the liquid involved in heat exchange to flow through more paths, fully contacting the air or other heat exchange medium, greatly increasing the area and paths for heat exchange, thereby significantly improving the heat exchange efficiency of the entire heat exchanger 20 and enabling more rapid and effective temperature regulation. Furthermore, the multiple independent heat exchange channels ensure uniform distribution and flow of liquid between the liquid inlet chamber 10a and the liquid outlet chamber 10b. Each heat exchange channel can complete the heat exchange process relatively independently, preventing the concentration of liquid in a few heat exchange channels, resulting in excessive heat exchange in some areas and insufficient heat exchange in others. This helps to achieve more uniform heat exchange throughout the heat exchanger 20, improving the accuracy and stability of temperature control.

[0095] Furthermore, multiple heat exchange channels can disperse the liquid pressure during liquid flow. If there were only a few heat exchange channels, the liquid pressure might be concentrated in a single channel, placing a high pressure on the heat exchange tube 21 and increasing the risk of leakage and damage. Multiple heat exchange channels, however, can share the liquid pressure, reducing the pressure on each channel. This reduces the probability of failures caused by excessive pressure and improves the stability and reliability of the fan coil unit 100 and the air conditioner indoor unit.

[0096] It should be added here that please refer to Figure 3 and Figure 4 The upper cover 11 has a first protrusion 1131 protruding along the axial direction of the water inlet connector 3, and the first protrusion 1131 extends along the outer circumference of the water inlet connector 3, so that the first protrusion 1131 surrounds the circumference of the water inlet connector 3, and the height of the first protrusion 1131 is less than the height of the water inlet connector 3, or the top surface of the first protrusion 1131 is flush with the top surface of the water inlet connector 3. Similarly, the upper cover 11 also has a second protrusion 1132 protruding along the axial direction of the water outlet connector 4, and the second protrusion 1132 extends along the outer circumference of the water outlet connector 4, so that the second protrusion 1132 surrounds the circumference of the water outlet connector 4, and the height of the second protrusion 1132 is less than the height of the water outlet connector 4, or the top surface of the second protrusion 1132 is flush with the top surface of the water inlet connector 3.

[0097] With such a configuration, on the one hand, the first protrusion 1131 and the second protrusion 1132 will be able to effectively increase the sealing contact area between the water inlet joint 3 and the upper cover 11 and between the water outlet joint 4 and the upper cover 11, forming a tighter sealing structure, improving the sealing effect, maintaining a good sealing state, and preventing liquid from leaking from the connection between the water inlet joint 3 and the upper cover 11 or between the water outlet joint 4 and the upper cover 11.

[0098] On the other hand, first protrusion 1131 and second protrusion 1132 can protect the water inlet connector 3 and water outlet connector 4 from external impact or wear to a certain extent, and effectively increase the structural strength and rigidity of the upper cover 11 at the water inlet connector 3 and water outlet connector 4. When the device is subjected to external forces during installation, transportation, or use, first protrusion 1131 and second protrusion 1132 can absorb some of the impact force, reducing the possibility of direct contact between the water inlet connector 3 and water outlet connector 4 and the outside world, thereby reducing the risk of damage to the water inlet connector 3 and water outlet connector 4.

[0099] Furthermore, when installing the water inlet connector 3 and the water outlet connector 4, the first protrusion 1131 and the second protrusion 1132 serve as a positioning reference. The position and shape of the protrusions allow the installer to more accurately position the connectors, ensuring the correct relative position between the connectors and the upper cover 11, thereby improving installation efficiency and accuracy. Furthermore, the provision of the protrusions also facilitates alignment and installation of the seal 14.

[0100] As a preferred method of this embodiment, please refer to Figures 2 to 5 As shown, the manifold also includes an exhaust valve 2, which is provided at the top of the shell 1, that is, the exhaust valve 2 is provided on the upper cover 11 of the shell 1, and an exhaust channel is provided inside the exhaust valve 2, and an exhaust port 11c is provided on the upper cover 11 of the shell 1. The central axis of the exhaust channel coincides with the exhaust port 11c, and the exhaust port 11c can conduct the exhaust channel so that the exhaust channel of the exhaust valve 2 can discharge the gas in the shell 1, and the exhaust valve 2 can selectively be connected to the liquid inlet chamber 10a or the liquid outlet chamber 10b. In actual application scenarios, the exhaust valve 2 can be configured as multiple according to specific needs, with some exhaust valves 2 connected to the liquid inlet chamber 10a and the other part connected to the liquid outlet chamber 10b. One part of the exhaust valve 2 is connected to the liquid inlet chamber 10a, and the other part is connected to the liquid outlet chamber 10b. It should be noted that the exhaust valve 2 belongs to the mature existing technology well known to those skilled in the art, so its specific structure will not be described in detail here.

[0101] During the assembly process of the fan coil unit 100, liquid needs to be injected to expel the air in the components of the fan coil unit 100, such as the heat exchanger 20. The exhaust valve 2 will be used to promptly exhaust the air inside the fan coil unit 100, allowing the liquid to smoothly fill every corner, especially the complex pipe structure inside the heat exchanger 20. If the air is not completely exhausted, air blockage will be formed, resulting in the liquid being unable to completely fill the heat exchanger 20, reducing its effective heat exchange area, thereby affecting the heat exchange efficiency and making local overheating or overcooling more likely to occur. The presence of the exhaust valve 2 ensures that the liquid can be fully filled, so that the heat exchanger 20 can reach the optimal working state during initial operation. At the same time, it can also reduce the dissolved oxygen content in the liquid, effectively reduce or avoid the occurrence of cavitation, extend the service life of the fan coil unit 100, and reduce the cost of subsequent maintenance and replacement.

[0102] Preferably, if the exhaust valve 2 is connected to the liquid inlet chamber 10a, the exhaust valve 2 is located around the water inlet connector 3. If the exhaust valve 2 is connected to the liquid outlet chamber 10b, the exhaust valve 2 is located around the water outlet connector 4. This allows the assembler to easily utilize their intuitive understanding of the positional relationship during installation, commissioning, and routine maintenance, reducing the possibility of operational errors due to misjudgment. Even relatively inexperienced personnel can quickly and accurately identify and operate the valve, providing a strong anti-error feature.

[0103] As a further preferred embodiment of this invention, the exhaust valve 2 is a waterproof breathable valve. Figures 2 to 5 As shown, the exhaust valve 2 includes a valve body 21, a valve seat 22 and a waterproof breathable membrane. The valve body 21 is detachably connected to the shell 1. The waterproof breathable membrane is arranged inside the valve body 21 to prevent the liquid in the shell 1 from flowing out and to discharge the gas in the shell 1. The valve seat 22 is fixedly connected to the upper cover 11. The valve body 21 and the valve seat 22 are detachably connected. The detachable connection can be optionally a press-type connection or a threaded connection.

[0104] In this way, the waterproof breathable membrane can effectively prevent the liquid in the shell 1 from flowing out, avoiding the risk of liquid leakage. At the same time, the waterproof breathable membrane has good air permeability, and the gas accumulated in the shell 1 can be quickly and effectively discharged, ensuring that the gas in the liquid inlet chamber 10a and the liquid outlet chamber 10b is discharged in time, maintaining the pressure balance in the system, and ensuring the smooth flow of liquid in the system. More importantly, the waterproof breathable valve does not require frequent manual operation or adjustment. When the gas pressure in the shell 1 reaches a certain level, the gas can be automatically discharged through the waterproof breathable membrane. This automatic exhaust function reduces manual intervention and reduces the workload of operators. At the same time, it also avoids the problem of untimely exhaust due to human negligence in not opening the exhaust valve 2 in time, further improving the convenience and reliability of exhaust.

[0105] Furthermore, please combine Figures 3 to 5As shown, the upper cover 11 further includes a third protrusion 1133 protruding along the central axis of the exhaust passage of the exhaust valve 2. The first protrusion 1131, the second protrusion 1132, and the third protrusion 1133 are all located on the same side of the upper cover 11. The third protrusion 1133 extends along the circumference of the valve seat 22 of the exhaust valve 2, so that the third protrusion 1133 surrounds the circumference of the valve seat 22. The height of the third protrusion 1133 is less than the height of the valve seat 22, or the top surface of the third protrusion 1133 is flush with the top surface of the valve seat 22.

[0106] In this way, the third protrusion 1133 fits tightly against the valve seat 22, providing additional support for the seal of the exhaust valve 2. Even if the seal 14 experiences slight displacement or deformation due to vibration or temperature fluctuations during operation, the third protrusion 1133 maintains a good seal, preventing gas and liquid leakage and ensuring efficient operation of the exhaust system. Furthermore, from a structural mechanics perspective, the third protrusion 1133 enhances the structural strength of the upper cover 11 where the exhaust valve 2 is mounted. During operation of the fan coil unit 100, fluctuations in internal pressure can generate stress on the exhaust valve 2 and surrounding structures. The third protrusion 1133 effectively distributes this stress, preventing deformation or damage to the upper cover 11 around the exhaust valve 2 due to long-term stress. This improves the stability and reliability of the entire device structure and ensures the normal operation of the fan coil unit 100 under complex operating conditions. Furthermore, during installation of the exhaust valve 2, the third protrusion 1133 provides a clear positioning marker for the installer, facilitating accurate installation of the exhaust valve 2 and enhancing installation efficiency and precision.

[0107] It should be noted that the upper cover 11 and lower cover 12 of the housing 1 can be made of aluminum or aluminum alloy materials. Of course, the upper cover 11 and lower cover 12 of the housing 1 can also be made of plastic. The water inlet connector 3, water outlet connector 4, and valve seat 22 can be integrally formed with the upper cover 11 using a process such as injection molding or die casting. Alternatively, the valve seat 22, water inlet connector 3, and water outlet connector 4 can be separate components that can be assembled to the upper cover 11 one by one.

[0108] Considering the corrosion problem of housing 1 made solely of aluminum and aluminum alloys, the inherent presence of dissolved oxygen, chloride ions, and other components in water can easily lead to the formation of corrosion cells on the aluminum surface, accelerating oxidative corrosion. Chloride ions have strong penetrating properties and can destroy the protective oxide film on the aluminum surface, exposing the aluminum to the corrosive environment and causing localized corrosion such as pitting and crevice corrosion. To address this issue, this application further discloses a preferred solution to effectively address the corrosion problem of manifold housing 1.

[0109] Please refer to the Figures 7 to 9The liquid collector also includes an upper anti-corrosion shell 16 and a lower anti-corrosion shell, wherein the upper anti-corrosion shell 16 is at least arranged on the inner side of the upper cover 11, and the lower anti-corrosion shell is at least arranged on the inner side of the lower cover 12. The upper cover 11 is a metal part, and the lower cover 12 can be optionally a metal part. The metals selected for the upper cover 11 and the lower cover 12 can be the same or different. The material of the metal part includes but is not limited to the above-mentioned aluminum and aluminum alloy. Other metal materials such as copper or iron can also be selected according to the structural design and design requirements. In this way, through the cooperation between the upper anti-corrosion shell 16 and the lower anti-corrosion shell, it will be possible to provide key protection for solving the corrosion problem of the liquid collector shell 1 made of aluminum. Furthermore, the upper anti-corrosion shell 16 fits tightly to the inner side of the upper cover 11, and the lower anti-corrosion shell is firmly installed on the inner side of the lower cover 12, and together they construct a corrosion-resistant liquid inlet cavity 10a and liquid outlet cavity 10b.

[0110] For details, please refer to Figures 7 to 9 The upper cover 11 includes an upper top wall 111 and an upper side wall 112. The upper top wall 111 is located on the top of the upper anti-corrosion shell 16 and is in contact with the top of the upper anti-corrosion shell 16. The upper side wall 112 extends from the upper top wall 111 toward the side of the lower cover 12 and surrounds at least a portion of the circumference of the upper anti-corrosion shell 16. This structural design not only strengthens the support for the upper anti-corrosion shell 16, making it more stable when subjected to internal liquid pressure, effectively ensuring the overall structural strength and stability of the shell 1, but also further reduces the impact of the external environment on the internal structure.

[0111] For further information, please refer to Figures 7 to 9 The upper anti-corrosion shell 16 includes an upper shell body 1611 and an outer flange 1612. The outer flange 1612 extends outward from the upper shell body 1611. The upper sidewall 112 surrounds the circumference of the upper shell body 1611 and extends to the outer flange 1612. In this embodiment, the outer flange 1612 is preferably located on a side of the upper shell body 1611 close to the lower anti-corrosion shell, that is, the outer flange 1612 is located at the opening edge of the upper shell body 1611 and extends along the circumference of the upper shell body 1611.

[0112] Among them, the outer convex edge 1612 provides a wider installation contact surface for the upper anti-corrosion shell 16. During the installation process, the upper side wall 112 of the upper cover 11 extends to the outer convex edge 1612 and cooperates with it, making the connection between the upper anti-corrosion shell 16 and the upper cover 11 tighter and stronger, ensuring that it can better resist the vibration and external force impact generated during the operation of the fan coil 100, and prevent the upper anti-corrosion shell 16 from being displaced or loosened during use. At the same time, the outer convex edge 1612, as an extension of the upper shell body 1611, can work together with the upper shell body 1611 when under force, and jointly withstand the influence of internal liquid pressure and external environmental factors. This overall structure not only improves the strength and rigidity of the upper anti-corrosion shell 16, but also enables it to better maintain its shape and performance stability when facing complex working conditions. It can be understood that the above-mentioned water inlet hole 11a and water outlet hole 11b both pass through the upper anti-corrosion shell 16 and the upper cover 11 to ensure that the liquid inlet path and the liquid outlet path are unobstructed. When liquid flows into the liquid inlet chamber 10a through the water inlet hole 11a, the upper anti-corrosion shell 16 effectively prevents direct contact between the liquid and the aluminum material of the upper cover 11, and also prevents direct contact between the liquid and the aluminum material of the lower cover 12, thereby preventing corrosion of the upper cover 11 caused by dissolved oxygen, chloride ions, and other components in the liquid. Multiple pipe openings 12a also penetrate the lower cover 12. The lower anti-corrosion shell is provided with multiple liquid holes 144, each of which is connected to a corresponding pipe opening 12a. Heat exchange tubes 21 are connected to the liquid inlet chamber 10a and the liquid outlet chamber 10b through the pipe openings 12a and the liquid holes 144, allowing liquid to enter the heat exchange tubes 21.

[0113] Preferably, please refer to Figure 9 As shown, the conductive member 13 and the cross-conductive member 17 are arranged on at least one of the upper anti-corrosion shell 16, the lower anti-corrosion shell and the partition 19, ensuring that the conductive member 13 and the cross-conductive member 17 themselves have good anti-corrosion performance. Preferably, the conductive member 13 extends downward from the upper anti-corrosion shell 16. When the lower cover 12 is installed in place, the conductive member 13 accurately abuts against the lower anti-corrosion shell and connects the ports of the two heat exchange tubes 21. With its own anti-corrosion material, the risk of corrosion caused by contact with liquid is avoided throughout the process. The cross-conductive member 17 is passed through the partition 19 and is integrally formed with the partition 19. Its cross-conductive member 171 covers the pipe openings 12a on both sides of the partition 19. Part of the cross-conductive member 17 is located in the liquid inlet chamber 10a and is connected to one heat exchange tube 21, and the remaining part is located in the liquid outlet chamber 10b and is connected to the other heat exchange tube 21. It can also effectively resist corrosion. This structure not only ensures the orderly flow of liquid between the heat exchange tubes 21, but also, due to its own anti-corrosion performance, eliminates the risk of corrosion caused by the contact of the conductive part 13 and the jumper conductive part 17 with the liquid, greatly improving the corrosion resistance of the manifold, ensuring its long-term stable operation under complex working conditions, effectively extending the service life of the manifold and the fan coil 100, and ensuring the efficient and stable operation of the entire air-conditioning indoor unit.

[0114] Furthermore, the lower corrosion-resistant shell includes a lower shell body 1621 and an outer extension 1622. The outer extension 1622 extends outward from the lower shell body 1621 and abuts against the outer flange 1612. The lower shell body 1621 is provided with multiple liquid holes 144 as described above. Preferably, the lower corrosion-resistant shell serves as the seal 14 of the manifold 10. Specifically, the lower corrosion-resistant shell serves as the upper sealing portion 141 of the seal 14 to seal the gap between the upper cover 11 and the lower cover 12.

[0115] With such a configuration, the outer extension portion 1622 will be in close contact with the above-mentioned outer convex edge 1612, not only forming a reliable sealing line of defense between the two. When water or refrigerant flows inside the distributor 10, this sealing structure can effectively prevent the liquid from leaking from the connection between the upper and lower anti-corrosion shells, and avoid the liquid from contacting the external aluminum material, thereby significantly improving the overall anti-corrosion performance. At the same time, the upper anti-corrosion shell 16 and the lower anti-corrosion shell support each other at the connection, enhancing the stability of the entire anti-corrosion structure. During the operation of the fan coil 100, even if the internal fluid pressure fluctuates, or the equipment is subjected to external force due to vibration, this abutment structure can better disperse the stress and prevent displacement or deformation between the upper anti-corrosion shell 16 and the lower anti-corrosion shell, ensuring the stability of the structure of the entire distributor 10 and maintaining normal operation.

[0116] It should be noted that the lower anti-corrosion shell serves as the seal 14 of the manifold 10. Alternatively, at least a portion of the seal 14 may be sandwiched between the upper cover 11 and the lower cover 12, that is, the upper cover 11 abuts against the seal 14. This ensures a tight seal between the upper and lower covers 11, 12 when closed. The upper and lower anti-corrosion shells 16 and 12 may be made of polytetrafluoroethylene or rubber.

[0117] As a further preferred embodiment of this embodiment, please refer to Figures 7 to 9 The seal 14 also includes an in-hole sealing portion 142, which extends from the lower shell body 1621 toward the inner side of the pipe opening 12a, and the in-hole sealing portion 142 is sleeve-shaped and arranged on the hole wall of the pipe opening 12a. The in-hole sealing portion 142 is used to interference fit with the part of the heat exchange tube 21 passing through the pipe opening 12a, thereby forming a highly reliable sealing barrier between the heat exchange tube 21 and the pipe opening 12a, which will effectively prevent liquid from seeping out from the gap between the heat exchange tube 21 and the pipe opening 12a, and avoid liquid leakage to the outside of the manifold 10, thereby ensuring the normal operation of the system and reducing performance degradation and maintenance costs caused by leakage.

[0118] Furthermore, the in-hole seal 142 provides support and positioning for the heat exchange tube 21 within the tube opening 12a. During operation of the fan coil unit 100, when internal fluid pressure fluctuates or the unit vibrates, this reduces the shaking of the heat exchange tube 21, thus preventing structural damage caused by friction and collision between the heat exchange tube 21 and the tube opening 12a.

[0119] As a further preferred embodiment of this embodiment, please refer to Figure 10 As shown, seal 14 further includes a lower sealing portion 143. The in-hole sealing portion 142 extends inwardly of and protrudes beyond the tube opening 12a. Lower sealing portion 143 is disposed on the lower surface of lower cover 12 and connected to in-hole sealing portion 142. Upper sealing portion 141, in-hole sealing portion 142, and lower sealing portion 143 are preferably integrally formed. After assembly of fan coil unit 100, lower sealing portion 143 is sandwiched between lower cover 12 and heat exchanger 20.

[0120] It should be added that please refer to Figures 7 to 9 In this embodiment, the upper cover 11 is protruded toward the side of the anti-corrosion shell 16 facing away from the upper cover to form the above-mentioned first protrusion 1131 for embedding the water inlet joint 3, and the second protrusion 1132 for embedding the water outlet joint 4. Similarly, the upper cover 11 is protruded along the central axis of the exhaust channel of the exhaust valve 2 and toward the side of the anti-corrosion shell 16 facing away from the upper cover to form the above-mentioned third protrusion 1133.

[0121] Considering that the upper cover 11 and the lower cover 12 of the shell 1 are made of plastic, since the fan coil 100 is in operation, the internal part of the manifold 10 is subjected to the pressure shock of the liquid, and the pressure fluctuates frequently and with a large amplitude. In this case, the upper cover 11 and the lower cover 12 made of plastic material are difficult to withstand the continuous pressure and are prone to deformation. Not only that, the vibration generated during the operation of the fan coil 100 will also cause continuous mechanical stress to the manifold 10. Under the influence of long-term vibration, the structural strength of the manifold 10 made of plastic material gradually decreases, further aggravating the deformation problem and may even cause cracks. In response to the above-mentioned problems, the present application further discloses another preferred solution to solve the problem of low structural strength of the manifold made of plastic.

[0122] See Figures 11 to 13The shell 1 includes a plastic part 151 and a reinforcement 152, and the reinforcement 152 is embedded in the plastic part 151. Among them, the reinforcement 152 can be made of high-strength metal materials, such as stainless steel, aluminum alloy, etc., or high-performance composite materials such as carbon fiber. These reinforcements 152 have excellent mechanical properties and can significantly make up for the shortcomings of plastic materials in terms of strength. When responding to liquid pressure shocks, the reinforcement 152, with its own high-strength characteristics, bears most of the pressure load. When high-pressure liquid flows in the distributor 10 and generates pressure shocks, the reinforcement 152 is like a sturdy skeleton, dispersing the pressure, and effectively preventing the plastic part 151 from being locally dented or bulging due to excessive pressure.

[0123] When faced with the continuous vibration generated by the operation of the fan coil unit 100, the reinforcement 152 is tightly integrated with the plastic part 151 to jointly resist mechanical stress. The presence of the reinforcement 152 enhances the rigidity of the entire shell 1 and reduces the impact of vibration on the plastic part 151. Under the action of long-term vibration, the reinforcement 152 can effectively suppress the decline in the structural strength of the plastic part 151 and prevent cracks caused by vibration fatigue. For example, the reinforcement 152 made of continuous fiber reinforced composite material and laid along the force direction of the plastic part 151 can greatly improve the fatigue resistance of the plastic part 151 in a vibration environment, ensuring that the shell 1 remains structurally stable under long-term vibration conditions.

[0124] For details, please see Figures 11 to 13 At least one of the upper cover 11 and lower cover 12 includes a plastic portion 151. In other words, in one case, both the upper cover 11 and the lower cover 12 include the plastic portion 151, while in another case, only one of the upper cover 11 and the lower cover 12 includes the plastic portion 151, and the upper cover 11 and the lower cover 12 are made of other materials. The following details the structure of the upper cover 11 including the plastic portion 151 and its related characteristics.

[0125] An upper locking groove 115 is provided on the side of the upper cover 11 facing away from the lower cover 12. The shape and dimensions of the upper locking groove 115 precisely match those of the reinforcement 152. The upper locking groove 115 can be formed as an upper notch only in a direction perpendicular to the top surface of the upper cover 11, or it can be formed such that the upper locking groove 115 extends through at least one side of the upper cover 11 along its length and forms a side notch for the reinforcement 152 to be embedded within the upper locking groove 115. The surface of the upper locking groove 115 and / or the surrounding side of the reinforcement 152 are specially treated to have a certain surface roughness, thereby enhancing the friction between the reinforcement 152 and the reinforcement 152, ensuring that the reinforcement 152 can be firmly embedded in the upper locking groove 115. Of course, processes such as hot pressing and injection molding are used to tightly integrate the reinforcement 152 with the plastic portion 151 of the upper cover 11 to form a solid structure. It can be understood that in the direction perpendicular to the top surface of the upper cover 11, the reinforcement 152 covers at least part of the liquid inlet chamber 10a and at least part of the liquid outlet chamber 10b. Furthermore, the water outlet joint 4 and the water outlet joint 4 are fixedly connected to the reinforcement 152. The connection method here can be welding, riveting, bolt connection, or threaded connection.

[0126] In this way, the reinforcement 152 can be more easily and accurately inserted into the upper locking groove 115. At the same time, the reinforcement 152 and the plastic portion 151 of the upper cover 11 are tightly integrated into one body, forming a solid structure. This tight integration enables the reinforcement 152 and the plastic portion 151 to work better together, sharing the load when subjected to external forces, effectively improving the overall structural strength and deformation resistance of the upper cover 11, enabling it to better cope with the pressure shocks and vibrations generated during the operation of the fan coil unit 100.

[0127] Preferably, if Figure 13 As shown, the upper cover 11 also includes an outer sealing layer 114, which is arranged on the side of the reinforcement 152 facing away from the lower cover 12 to seal the upper notch of the upper embedding groove 115 on the top surface of the upper cover 11 vertically, and the outer sealing layer 114 abuts against the reinforcement 152, so that the reinforcement 152 is sandwiched between the outer sealing layer 114 and the groove wall of the upper embedding groove 115, and the outer sealing layer 114 is fixedly connected to other parts of the upper cover 11. The fixed connection here can be optionally integrated, or can be connected and fixed using fasteners (such as bolts, screws, studs, rivets, etc.), or can be a snap connection. In the process of installing the reinforcement 152 to the upper embedding groove 115, it is only necessary to insert the reinforcement 152 into the upper embedding groove 115 from the side notch. It should be added that the outer sealing layer 114 can be made of the same material as the plastic part 151, or it can be made of a material different from the plastic part 151.

[0128] This arrangement, because the outer sealing layer 114 seals the upper notch, effectively prevents the reinforcement 152 from being exposed and eroded by external environmental factors such as dust, moisture, and corrosive gases. This extends the service life of the reinforcement 152 and ensures its continued contribution to structural strength. Furthermore, the presence of the outer sealing layer 114 smoothes the surface of the upper cover 11, enhancing the overall aesthetics of the product. Furthermore, it further enhances the structural stability of the upper cover 11, helping the manifold 10 withstand the mechanical stresses generated by liquid pressure shock and equipment vibration.

[0129] It should be noted that the outer sealing layer 114 can be provided along the central axis of the water inlet connector 3 and on the side facing away from the reinforcement member 152 to form the aforementioned first protrusion 1131, and the first protrusion 1131 can be provided around the circumference of the water inlet connector 3. Alternatively, the reinforcement member 152 can be provided along the central axis of the water inlet connector 3 and on the side facing away from the reinforcement member 152 to form the aforementioned first protrusion 1131. When the outer sealing layer 114 is provided, the first protrusion 1131 can extend beyond the outer sealing layer 114 or be flush with the outer side surface of the outer sealing layer 114.

[0130] Similarly, the outer sealing layer 114 may be provided with the aforementioned second protrusion 1132, protruding along the central axis of the water outlet connector 4 and toward the side facing away from the reinforcement member 152, and the second protrusion 1132 may be provided around the circumference of the water outlet connector 4. Alternatively, the reinforcement member 152 may be provided with the second protrusion 1132 protruding along the axial direction of the water outlet connector 4. When the outer sealing layer 114 is provided, the second protrusion 1132 may extend beyond the outer sealing layer 114 or be flush with the outer side surface of the outer sealing layer 114.

[0131] Furthermore, the outer sealing layer 114 may be provided as the aforementioned third protrusion 1133, protruding along the central axis of the exhaust passage within the exhaust valve 2 and toward the side facing away from the reinforcement member 152. The third protrusion 1133 may be provided around the circumference of the water outlet connector 4. The reinforcement member 152 may also be provided as the third protrusion 1133, protruding along the central axis of the exhaust passage and toward the side facing away from the reinforcement member 152. When the outer sealing layer 114 is provided, the second protrusion 1132 may extend beyond the outer sealing layer 114 or be flush with the outer side surface of the outer sealing layer 114.

[0132] In this embodiment, the aforementioned water inlet hole 11a, water outlet hole 11b, and exhaust port 11c all extend through the plastic portion 151 and reinforcement 152 of the upper cover 11. When the fan coil unit 100 is in operation, liquid flows into the liquid inlet chamber 10a at high speed through the water inlet hole 11a. The reinforcement 152, with its high strength, effectively disperses the pressure generated by the impact of the liquid, preventing the plastic portion 151 from deforming or rupturing due to excessive pressure around the water inlet hole 11a, thereby ensuring a stable and unobstructed water inlet path. When the liquid is discharged from the water outlet hole 11b, the force exerted on the upper cover 11 by the changes in its flow rate and pressure is resisted by the reinforcement 152, maintaining the structural stability of the upper cover 11, preventing local deformation caused by the liquid outflow, and ensuring a smooth water discharge process.

[0133] Preferably, the inner wall of the water inlet interface 31 is flush with the inner wall of the water inlet through-hole 11a located inside the housing 1, and the inner wall of the water outlet interface 41 is flush with the inner wall of the water outlet through-hole 11b located inside the housing 1. The term "flush" here should be understood as meaning that the diameter of the water inlet through-hole 11a located inside the housing 1 is equal to the diameter of the water inlet interface 31, or that the diameter of the water inlet through-hole 11a located inside the housing 1 is larger than the diameter of the water inlet interface 31 within the assembly tolerance range. Similarly, the diameter of the water outlet through-hole 11b located inside the housing 1 is slightly larger than the diameter of the water outlet interface 41, or that the diameter of the water outlet through-hole 11b located inside the housing 1 is slightly larger than the diameter of the water outlet interface 41 within the assembly tolerance range.

[0134] This not only ensures that the liquid can enter the interior space of the housing 1 more smoothly and stably, but also reduces the flow resistance and turbulence caused by changes in aperture or the misalignment of the interface and the through-hole, thereby improving the fluid delivery efficiency and facilitating more efficient operation of the fan coil unit 100 system. It also reduces the dead angles and eddy currents generated by the fluid during flow, reducing the possibility of accumulation of impurities and corrosive substances in the fluid in these areas, thereby reducing the risk of corrosion to the internal structure of the upper cover 11 and improving the corrosion resistance and reliability of the system.

[0135] It is worth noting that when the conductive member 13 and the jumper conductive member 17 are molded on the upper cover 11, both of them are components of the plastic part 151, and together with the plastic part 151 and the reinforcement 152 of the upper cover 11, they constitute a complete structural system to jointly ensure the stable operation of the fan coil unit 100.

[0136] In addition, the lower cover 12 may also include a plastic portion 151. The following will elaborate on the structure and related characteristics of the lower cover 12 including the plastic portion 151. Specifically, a lower embedding groove is provided on the side of the lower cover 12 facing away from the lower cover 12. The shape and size of the lower embedding groove are precisely adapted to the shape and size of the reinforcement 152. The lower embedding groove may be provided with a lower notch opening facing the heat exchanger 20 in a direction perpendicular to the bottom surface of the lower cover 12. The lower embedding groove may also pass through at least one side of the lower cover 12 along the length of the groove and form a lower side opening for the reinforcement 152 to be embedded in the interior of the lower embedding groove. In this way, the reinforcement 152 will be able to be embedded in the lower embedding groove more conveniently and accurately. At the same time, the reinforcement 152 and the plastic portion 151 of the lower cover 12 are tightly integrated into one body to form a solid structure. This tight combination enables the reinforcement 152 and the plastic part 151 to work together better and share the load when subjected to external forces, effectively improving the overall structural strength and deformation resistance of the lower cover 12, so that it can better cope with the pressure shock and vibration generated during the operation of the fan coil 100.

[0137] When the above-mentioned lower cover 12 is installed to the heat exchanger 20, the reinforcement 152 directly abuts against the heat exchanger 20. Alternatively, the reinforcement 152 embedded in the lower embedding groove fits with the lower sealing portion 143 of the seal 14. In addition to this method, the lower cover 12 also includes a bottom sealing layer, which is provided on the side of the reinforcement 152 facing away from the upper cover 11 to seal the lower notch of the lower embedding groove on the bottom surface of the lower cover 12, and the outer sealing layer 114 abuts and fits the reinforcement 152, so that the reinforcement 152 is clamped between the bottom sealing layer and the groove wall of the lower embedding groove, and the bottom sealing layer is fixedly connected to other parts of the lower cover 12. The fixed connection here can be selected as an integral molding, or it can be selected as a connection and fixation using fasteners (such as bolts, screws, studs, rivets, etc.), or it can be selected as a snap connection. In the process of installing the reinforcement 152 to the lower embedding groove, it is only necessary to insert the reinforcement 152 into the lower embedding groove from the lower side opening. It should be added that the bottom sealing layer can be made of the same material as the plastic part 151 , or can be made of a material different from that of the plastic part 151 .

[0138] At this time, the bottom seal layer of the lower cover 12 directly contacts the heat exchanger 20. This can avoid wear and corrosion caused by direct contact between the reinforcement 152 and the heat exchanger 20, helping to protect the performance of the reinforcement 152 and the overall structural integrity of the lower cover 12, and extending its service life.

[0139] It can be understood that the above-mentioned pipe opening 12a passes through the plastic part 151 and the reinforcement 152 of the lower cover 12. The reinforcement 152 is embedded around the area surrounding the pipe opening 12a, playing a key role in strengthening the area where the pipe opening 12a is located. When the fan coil 100 is in operation, the liquid enters and exits through the pipe opening 12a, which will generate a certain amount of pressure on the lower cover 12. At this time, the reinforcement 152, with its own high strength, effectively disperses the pressure caused by the flow of liquid, prevents the plastic part 151 from being deformed or broken due to excessive pressure around the pipe opening 12a, ensures the stability of the structure at the pipe opening 12a, ensures the smooth flow of liquid through this area, avoids liquid leakage due to damage to the structure of the pipe opening 12a, and maintains the normal operation of the fan coil 100 system.

[0140] Furthermore, the present application considers that during operation of the air conditioner indoor unit, the surface temperature of the heat exchanger 20 is relatively low, and water vapor in the air near the heat exchanger 20 condenses into water droplets when it cools. The condensed water droplets flow freely and may drip onto other components of the air conditioner indoor unit, such as electrical components and motors, causing them to become damp and damaged, thus affecting the normal operation and service life of the air conditioner.

[0141] For the above problems, please refer to Figure 1 The air conditioner indoor unit also includes a water pan 200, which is located at the bottom of the heat exchanger 20 and extends out of the housing near the side of the manifold 10, so that the upward projection of the water pan 200 can cover the manifold 10. This arrangement allows condensed water droplets to flow toward the water pan 200 under the action of gravity, facilitating the rapid drainage of condensed water droplets from the air conditioner indoor unit. Because the manifold 10 is located within the coverage area of the water pan 200, condensed water flowing down from the heat exchanger 20 can be drained more smoothly through the water pan 200, reducing the accumulation or backflow of condensed water within the unit and improving the efficiency and reliability of drainage. In this way, even in high humidity, the possibility of condensation forming due to contact between the outer surface of the housing and the cold manifold 10 can be reduced, keeping the appearance of the air conditioner indoor unit clean and dry, and improving the user experience.

[0142] It should be noted that the heat exchanger 20 also includes an upper plate 20a and a lower plate 20b. The upper plate 20a is located on the side of the heat exchanger 20 near the manifold 10, and the lower plate 20b is located on the side of the heat exchanger 20 facing away from the manifold 10. The heat exchanger 20 is mounted and fixed to the housing of the air conditioner indoor unit via the upper plate 20a and the lower plate 20b. Preferably, the lower cover 12 of the housing 1 can serve as the upper plate 20a. This not only reduces the number of processes and materials required to design and manufacture the upper plate 20a, but also makes the structure of the air conditioner indoor unit more compact and simple. It also facilitates positioning and installation, reduces adjustment and alignment work during assembly, and reduces assembly difficulty, thereby effectively improving assembly precision and efficiency.

[0143] The above is an explanation of the distributor and collector 10 proposed in the embodiment of the present application. Since the fan coil unit 100 and the air-conditioning indoor unit proposed in the embodiment of the present application adopt all the technical solutions of all the above embodiments, they at least have all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0144] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "up", "down", "left", "right", etc. indicate directions or positional relationships, they are based on the directions or positional relationships shown in the drawings. This is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0145] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A current divider, characterized in that: Applicable to an air conditioner indoor unit, the air conditioner indoor unit includes a heat exchanger, the heat exchanger includes a heat exchange tube, and the flow divider includes: The shell has a liquid inlet cavity and a liquid outlet cavity which are independent of each other, wherein the liquid inlet cavity is used to divert the liquid to the plurality of heat exchange tubes, and the liquid outlet cavity is used to collect the liquid in the plurality of heat exchange tubes; and The conducting member is arranged in the liquid inlet cavity and used for conducting the two heat exchange tubes in the liquid inlet cavity, and / or is arranged in the liquid outlet cavity and used for conducting the two heat exchange tubes in the liquid outlet cavity.

2. The current distributor according to claim 1, characterized in that: The housing further comprises: Upper cover; a lower cover connected to the upper cover; and a separator, provided on the upper cover or the lower cover, and cooperating with the upper cover and the lower cover to form the liquid inlet cavity and the liquid outlet cavity; Wherein, the conductive member is provided on at least one of the upper cover, the lower cover and the separator.

3. The current distributor according to claim 2, characterized in that: The partition divides the inner space enclosed by the upper cover and the lower cover into the liquid inlet cavity and the liquid outlet cavity along a horizontal direction or a vertical direction.

4. The current divider according to claim 2, characterized in that: The conductive member includes: A first conducting member, disposed in the liquid inlet cavity, for conducting the two heat exchange tubes; and The second conducting member is arranged in the liquid outlet cavity and is used to conduct the two heat exchange tubes.

5. The current distributor as claimed in claim 2, characterized in that: The lower cover has a plurality of pipe openings for the heat exchange pipes to pass through; wherein, The plurality of the pipe openings are arranged along a row direction, and the conductive member connects two adjacent pipe openings along the row direction; or, A plurality of the pipe openings are arranged along a column direction, and the conductive member connects two adjacent pipe openings along the column direction; or, The plurality of pipe openings are arranged in a row direction and in a column direction, some of the conductive members connect two adjacent pipe openings along the row direction, and the remaining conductive members connect two adjacent pipe openings along the column direction.

6. The current distributor according to claim 5, characterized in that: The partition divides the inner space enclosed by the upper cover and the lower cover into the liquid inlet cavity and the liquid outlet cavity along the horizontal direction, and the column direction is parallel to the extension direction of the partition.

7. The current distributor according to claim 4, 5 or 6, characterized in that: The separator divides the internal space enclosed by the upper cover and the lower cover into the liquid inlet cavity and the liquid outlet cavity along the horizontal direction, and the flow divider further includes: The jumper conductive member is provided through the partition, and a portion thereof is located in the liquid inlet cavity and is communicated with one of the heat exchange tubes, and the remaining portion is located in the liquid outlet cavity and is communicated with another of the heat exchange tubes.

8. The current distributor according to claim 7, characterized in that: The jumper conductive parts are configured in plurality, and the liquid inlet cavity and the liquid outlet cavity are both configured with the plurality of conductive parts. The plurality of conductive parts, the plurality of heat exchange tubes and the plurality of jumper conductive parts constitute a plurality of heat exchange channels, and one end of each heat exchange channel is connected to the liquid inlet cavity, and the other end is connected to the liquid outlet cavity.

9. The current distributor according to claim 4 or 5, characterized in that: The separator divides the internal space enclosed by the upper cover and the lower cover into the liquid inlet cavity and the liquid outlet cavity along the vertical direction, and the manifold further includes: A water inlet joint is provided on the upper cover; a first flow guide member, wherein the internal flow passage of the water inlet joint is isolated from the liquid outlet cavity by the first flow guide member at a position where the internal flow passage passes through the liquid outlet cavity; and The second flow guide is used to separate the liquid flowing out of the heat exchange tube from the liquid in the liquid inlet cavity and guide the liquid through the liquid outlet cavity to the liquid outlet cavity.

10. The current distributor according to claim 5 or 6, characterized in that: Also includes: The sealing member is at least partially sandwiched between the upper cover and the lower cover, and is provided with a plurality of liquid holes, each of the liquid holes being connected to the corresponding pipe opening.

11. A fan coil unit, characterized in that: include: The current distributor and collector according to any one of claims 1 to 10; The heat exchanger has a plurality of heat exchange tubes inside, and the plurality of heat exchange tubes are all plugged into the shell, and the conducting member can conduct two of the heat exchange tubes.

12. The fan coil unit according to claim 11, wherein the heat exchanger further comprises: The lower plate is arranged on the side of the heat exchanger facing away from the distributor and collector, and is used for being installed and fixed on the casing of the indoor unit of the air conditioner.

13. An air conditioner indoor unit, characterized in that: include: The fan coil unit according to claim 11 or 12; The heat exchanger is arranged inside the casing and connected to the casing, and the flow distributor is arranged outside the casing and connected to the casing.

14. The air conditioner indoor unit according to claim 13, further comprising: A water receiving tray is provided at the bottom of the heat exchanger and extends out of the casing on a side close to the manifold, so that the upward projection of the water receiving tray can cover the manifold.

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