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

Abstract

The invention discloses a flow dividing and collecting device which comprises a shell, a liquid inlet cavity and a liquid outlet cavity which are independent of each other are formed in the shell, the liquid inlet cavity is used for dividing liquid into a plurality of heat exchange tubes, the liquid outlet cavity is used for collecting the liquid of the heat exchange tubes, the shell comprises a plastic part and a reinforcing part, and the reinforcing part is embedded in the plastic part. 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, and the technical scheme of the invention can solve the problem that an existing water collecting head made of a plastic material is prone to deformation and damage due to pressure impact.

Description

Technical Field

[0001] This application relates to the technical field of fan coil units, and particularly to a flow distributor, a fan coil unit, and an air conditioner indoor unit. Background Art

[0002] In the related art, in current fan coil units, some water collectors used for liquid diversion and collection are made of plastic. However, due to insufficient strength of the plastic water collector, it is difficult to effectively disperse and withstand the pressure impact of the liquid inside the water collector. Over time, frequent pressure impacts will gradually cause plastic deformation of the plastic water collector, resulting in a change in the shape of its internal flow channel. The deformation of the flow channel will not only increase the fluid flow resistance, reduce the heat exchange efficiency of the fan coil unit, but also may cause local pressure concentration, further exacerbating the deformation degree of the water collector, and even leading to rupture, causing liquid leakage, seriously affecting the normal operation of the fan coil unit. Summary of the Invention

[0003] Embodiments of this application provide a flow distributor, a fan coil unit, and an air conditioner indoor unit, which can solve the problem that the existing plastic water collector is easily deformed and damaged due to pressure impact.

[0004] In a first aspect, embodiments of this application provide a flow distributor, which is applied to an air conditioner indoor unit. The air conditioner indoor unit includes a heat exchanger, and the heat exchanger includes heat exchange tubes. The flow distributor includes:

[0005] A housing having independent liquid inlet and outlet cavities. The liquid inlet cavity is used to divert liquid to a plurality of the heat exchange tubes, and the liquid outlet cavity is used to collect the liquid from the plurality of heat exchange tubes. The housing includes a plastic part; and

[0006] A reinforcing member embedded in the plastic part.

[0007] In an embodiment, the flow distributor further includes:

[0008] An inlet connector provided on the housing and communicating with the liquid inlet cavity;

[0009] An outlet connector provided on the housing and communicating with the liquid outlet cavity.

[0010] In an embodiment, the housing further includes:

[0011] An upper cover, both the inlet connector and the outlet connector are provided on the upper cover;

[0012] A lower cover connected to the upper cover; and

[0013] A partition member provided on the upper cover or the lower cover and cooperating with the upper cover and the lower cover to define the liquid inlet cavity and the liquid outlet cavity;

[0014] Wherein, at least one of the upper cover and the lower cover includes the plastic part.

[0015] In one embodiment, the upper cover includes a plastic part, and an upper clamping groove is provided on a side of the upper cover facing away from the lower cover, and the reinforcing member is embedded inside the upper clamping groove;

[0016] Wherein, both the water outlet joint and the water outlet joint are fixedly connected to the reinforcing member.

[0017] In one embodiment, the upper cover further includes:

[0018] An outer sealing layer is provided on a side of the reinforcing member facing away from the lower cover and abuts and fits against the reinforcing member.

[0019] In one embodiment, the flow divider further includes:

[0020] An exhaust valve is fixedly connected to the reinforcing member and communicates with the liquid inlet cavity and / or the liquid outlet cavity.

[0021] In one embodiment, an exhaust passage is provided inside the exhaust valve, and the exhaust passage is used to discharge the gas inside the housing;

[0022] One of the outer sealing layer and the reinforcing member is provided with a third protrusion protruding along the central axis of the exhaust passage and facing away from the side of the reinforcing member, and the third protrusion surrounds the periphery of the exhaust valve.

[0023] In one embodiment, a water inlet interface is provided on the water inlet joint, a water inlet through hole is provided on the upper cover, and the inner wall of the interface of the water inlet interface is flush with the inner hole wall of the water inlet through hole located inside the housing;

[0024] A water outlet interface is provided on the water outlet joint, a water outlet through hole is provided on the upper cover, and the inner wall of the interface of the water outlet interface is flush with the inner hole wall of the water outlet through hole located inside the housing.

[0025] In one embodiment, a lower clamping groove is provided on a side of the lower cover facing away from the lower cover, and the reinforcing member is embedded inside the lower clamping groove.

[0026] In one embodiment, the lower cover further includes:

[0027] A bottom sealing layer is provided on a side of the reinforcing member facing away from the upper cover and abuts and fits against the reinforcing member.

[0028] In a second aspect, an embodiment of the present application provides a fan coil unit, and the fan coil unit includes:

[0029] The above-mentioned flow divider;

[0030] The heat exchanger has a plurality of heat exchange tubes inside. A plurality of the heat exchange tubes are all inserted into the housing, and the conducting member can conduct two of the heat exchange tubes to each other.

[0031] In one embodiment, the heat exchanger further includes:

[0032] A lower side plate, which is arranged on the side of the heat exchanger facing away from the flow distributor, and is used for being fixedly installed on the housing of the air conditioner indoor unit.

[0033] In a third aspect, an embodiment of the present application provides an air conditioner indoor unit, including:

[0034] The above-mentioned fan coil unit;

[0035] A housing, the heat exchanger is arranged inside the housing and is connected to the housing, the flow distributor is arranged outside the housing, and the flow distributor is connected to the housing.

[0036] In one embodiment, the air conditioner indoor unit further includes:

[0037] A water receiving tray, which is arranged at the bottom of the heat exchanger, and extends out of the housing near one side of the flow distributor, so that the upward projection of the water receiving tray can cover the flow distributor.

[0038] Based on the above embodiments, the flow distributor proposed in the embodiments of the present application includes a housing, which has an independent liquid inlet chamber and an outlet chamber. The liquid inlet chamber is used for splitting the liquid to a plurality of heat exchange tubes, and the outlet chamber is used for collecting the liquid of the plurality of heat exchange tubes. Among them, the housing includes a plastic part and a reinforcing member, and the reinforcing member is embedded in the plastic part.

[0039] Compared with the related art, the technical solution of the present application cleverly embeds a reinforcing member on the plastic part, and uses the reinforcing member to enhance the structural strength of the housing. Then, when dealing with the impact of liquid pressure, the reinforcing member, relying on its own high-strength characteristics, bears most of the pressure load, effectively preventing the plastic part from undergoing local depression or bulging deformation due to excessive pressure. Description of the Drawings

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0041] Figure 1 It is the overall structure diagram of a fan coil unit of the present invention;

[0042] Figure 2Partial assembly schematic diagram of a fan coil unit of the present invention from the first perspective;

[0043] Figure 3 Partial assembly schematic diagram of a fan coil unit of the present invention from the second perspective;

[0044] Figure 4 Top view schematic diagram of a fan coil unit of the present invention;

[0045] Figure 5 is Figure 4 Schematic cross-sectional view at A-A in

[0046] Figure 6 Flow path schematic diagram of a flow distributor of the present invention;

[0047] Figure 7 Explosion schematic diagram of a second structural form of a flow distributor of the present invention;

[0048] Figure 8 Top view schematic diagram of a second structural form of a flow distributor of the present invention;

[0049] Figure 9 is Figure 8 Schematic cross-sectional view at B-B in

[0050] Figure 10 Structural schematic diagram of a seal of the present invention;

[0051] Figure 11 Explosion schematic diagram of a third structural form of a flow distributor of the present invention;

[0052] Figure 12 Top view schematic diagram of a third structural form of a flow distributor of the present invention;

[0053] Figure 13 is Figure 12 Schematic cross-sectional view at C-C in

[0054] Explanation of reference numerals in the drawings:

[0055] 100 - Fan coil unit, 10 - Manifold, 1 - Housing, 10a - Liquid inlet chamber, 10b - Liquid outlet chamber, 11 - Upper cover, 11a - Water inlet through - hole, 11b - Water outlet through - 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 clamping groove, 12 - Lower cover, 12a - Pipe passing orifice, 13 - Conducting part, 131 - First conducting part, 132 - Second conducting part, 133 - Conducting inner cavity, 14 - Sealing part, 141 - Upper sealing part, 142 - Inner - hole sealing part, 143 - Lower sealing part, 144 - Liquid passing hole, 151 - Plastic part, 152 - Reinforcing part, 16 - Upper anti - corrosion shell, 1611 - Upper shell main body, 1612 - Outer convex edge, 162 - Lower anti - corrosion part, 1621 - Lower shell main body, 1622 - Outer extension part, 17 - Cross - connecting conducting part, 171 - Cross - connecting inner cavity, 19 - Partition part, 2 - Exhaust valve, 21 - Valve body main body, 22 - Valve seat, 3 - Water inlet joint, 31 - Water inlet interface, 4 - Water outlet joint, 41 - Water outlet interface,

[0056] 20 - Heat exchanger, 21 - Heat exchange tube, 20a - Upper side plate, 20b - Lower side plate,

[0057] 200 - Water receiving tray, 300 - Machine shell.

[0058] The realization of the purpose of this application, functional characteristics and advantages will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0059] To make the purpose, technical solutions and advantages of this application clearer, the following will further describe the embodiments of this application in detail with reference to the accompanying drawings.

[0060] The implementation manners described in the exemplary embodiments do not represent all the implementation manners consistent with this application. On the contrary, they are only examples of devices and methods that are consistent with some aspects of this application as detailed in the appended claims.

[0061] In the description of this application, it should be understood that terms such as "first", "second", etc. are only used for descriptive purposes and cannot be construed 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 situations. In addition, in the description of this application, unless otherwise specified, "a plurality" means two or more. "And / or" describes the association relationship of associated objects and indicates that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0062] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0063] This application provides an indoor air conditioner. In modern life, indoor air conditioners have become important devices for people to adjust parameters such as indoor environmental temperature and humidity, and are widely used in various places. From bedrooms and living rooms in homes to commercial spaces such as offices, shopping malls, and hotels, and then to public buildings such as hospitals and schools, indoor air conditioners play an indispensable role. It can create a comfortable indoor environment for people and meet the requirements for temperature, humidity, and air circulation in different scenarios.

[0064] Generally, an indoor air conditioner includes a housing and a fan coil unit 100 installed on the housing. As one of the core components of the indoor air conditioner, the main function of the fan coil unit 100 is to adjust the temperature of indoor air through heat exchange and promote air circulation. Specifically, the fan coil unit 100 includes a fan and a heat exchanger 20 disposed in the housing. The interior of the heat exchanger 20 has a plurality of heat exchange tubes 21 arranged closely. The heat exchanger 20 is disposed in the housing and connected to the housing (such as screw connection, snap connection, or welding connection).

[0065] When the circulating liquid (water or refrigerant) in the indoor air conditioner flows through the heat exchange tubes 21, the heat exchange tubes 21 will exchange heat with the indoor air flowing over their surfaces. If the liquid flowing in the heat exchange tubes 21 is a low-temperature liquid, when the indoor air passes over the surface of the heat exchange tubes 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. During this process, the heat will be carried away by the cold water, and the air temperature will decrease as it loses heat, achieving a cooling effect; if the liquid in the heat exchange tubes 21 is a high-temperature liquid, the air will absorb heat from the hot water and the temperature will increase, achieving a heating effect. At the same time, the fan equipped with the fan coil unit 100 blows the air that has undergone heat exchange into the room, accelerating the circulation of indoor air and enabling the temperature in each area of the room to be quickly and evenly distributed, thereby providing users with a comfortable indoor environment experience.

[0066] In the related art, when the current fan coil unit 100 shunts and integrates the fluid circulating inside it, a metal water collector is usually used. Multiple outlet branch pipes and inlet branch pipes are bent and welded on the existing metal water collector, and both the outlet branch pipes and the inlet branch pipes (collectively referred to as branch pipes below) are connected to the heat exchanger 20. However, during the bending process, the internal flow channels of the branch pipes are prone to deformation, resulting in a change in the local cross-sectional area and no longer being uniform. When the circulating fluid flows through the bent part, the flow direction changes frequently, generating turbulent flow. According to fluid mechanics, turbulent flow increases the friction between the fluid and the pipe wall, and the flow resistance rises 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 and shortens the service life of the equipment.

[0067] In view of the defects existing in the above-mentioned existing metal water collector, the present application provides a fan coil unit 100. Please refer to Figures 1 to 6 , the fan coil unit 100 further includes a manifold 10, and the manifold 10 includes a housing 1. Among them, the housing 1 has an independent liquid inlet chamber 10a and a liquid outlet chamber 10b, which can be made by an integral molding process or formed by assembling multiple components. For example, the housing 1 includes an upper cover 11 and a lower cover 12, and the lower cover 12 is connected to the upper cover 11. This connection can be at least one of a screw connection, a snap connection, and a magnetic connection, which is a detachable connection, and can also be a welded connection. As long as it can form an independent liquid inlet chamber 10a and a liquid outlet chamber 10b. It can be understood that the above-mentioned "independent" 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 the established path.

[0068] Please refer to Figure 6 As shown, the housing 1 further includes a partition 19 disposed inside the housing 1. The partition 19 can be a flat plate structure, or can be a plate structure in an arc shape, a wave shape, or a broken line shape. In the present application, the partition 19 is not limited. The partition 19 can be disposed in the internal cavity of the integral housing 1 to divide the internal cavity of the housing 1 into a liquid inlet chamber 10a and a liquid outlet chamber 10b, or can cooperate with the upper cover 11 and the lower cover 12 to configure 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, and can also be a separate component. Both the upper cover 11 and the lower cover 12 are provided with partition grooves for buckling the partition 19.

[0069] To facilitate the centralized connection of multiple heat exchange tubes 21 of the heat exchanger 20 to the housing 1, improve the assembly efficiency and assembly convenience of the fan coil unit 100 and the air conditioner indoor unit, and make the overall structure of the fan coil unit 100 more compact, reducing the space occupancy rate, as shown in Figure 5 and Figure 6As shown, a plurality of heat exchange tubes 21 are all connected to the same side wall of the housing 1. In the form where the upper cover 11 and the lower cover 12 are assembled to form the housing 1, a plurality of heat exchange tubes 21 are all inserted into the lower cover 12 of the housing 1. After assembly, the lower bottom surface of the lower cover 12 is close to or abuts against the heat exchanger 20.

[0070] In this embodiment, please refer to Figure 6 As 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 liquid outlet chamber 10b are on the same horizontal 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 the 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 liquid outlet chamber 10b are stacked and distributed in the vertical direction.

[0071] Furthermore, please refer to Figures 3 to 6 As shown, the above-mentioned flow distributor 10 further includes a water inlet joint 3 and a water outlet joint 4 provided on the housing 1. Among them, the water inlet joint 3 communicates with the liquid inlet chamber 10a, and the water outlet joint 4 communicates with the liquid outlet chamber 10b. Considering preventing the water inlet outer pipe connected to the water inlet joint 3 and the water outlet outer pipe connected to the water outlet joint 4 from interfering with the installation of the heat exchanger 20, both the water inlet joint 3 and the water outlet joint 4 are installed on the same side wall of the housing 1, and the side wall where the water inlet joint 3 and the water outlet joint 4 are installed is opposite to the side wall where the plurality of heat exchange tubes 21 are installed. In the form where the upper cover 11 and the lower cover 12 are assembled to form the housing 1, both the water inlet joint 3 and the water outlet joint 4 are inserted into the upper cover 11 of the housing 1.

[0072] It should be noted that when the partition 19 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, the upper cover 11 is provided with a water inlet through hole 11a whose shape and size are adapted to those of the water inlet joint 3. The water inlet joint 3 is inserted into the water inlet through hole 11a, and the water inlet outer pipe will directly conduct the liquid inlet chamber 10a through the water inlet interface 31 of the water inlet joint 3, so that the liquid will directly flow through the water inlet interface 31 and fill into the liquid inlet chamber 10a. Similarly, the upper cover 11 is also provided with a water outlet through hole 11b whose shape and size are adapted to those of the water outlet joint 4. The water outlet joint 4 is inserted into the water outlet through hole 11b, and the water outlet outer pipe will directly conduct the liquid outlet chamber 10b through the water outlet interface 41 of the water outlet joint 4, so that the liquid collected in the liquid outlet chamber 10b will directly flow through the water outlet interface 41 and enter the water outlet outer pipe.

[0073] When the partition member 19 divides the internal space enclosed by the upper cover 11 and the lower cover 12 into an inlet liquid chamber 10a and an outlet liquid chamber 10b in the vertical direction, the flow distributor 10 further includes a first flow guiding member and a second flow guiding member. A first flow guiding channel is provided through the interior of the first flow guiding member, and a second flow guiding channel is provided through the interior of the second flow guiding member. Among them, the first flow guiding member is disposed in the outlet liquid chamber 10b, and both ends of the first flow guiding member are respectively abutted against the partition member 19 and the upper cover 11. The water inlet interface 31 of the water inlet joint 3 conducts the inlet liquid chamber 10a through the first flow guiding channel. In this way, the internal flow channel of the water inlet joint 3 is isolated from the outlet liquid chamber 10b through the first flow guiding member at the position passing through the outlet liquid chamber 10b. Then, the liquid will flow through the water inlet interface 31 and the first flow guiding channel in sequence from the water inlet outer connecting pipe and then fill into the inlet liquid chamber 10a, and it is ensured that the liquid inside the first flow guiding channel will not penetrate with the liquid inside the outlet liquid chamber 10b.

[0074] The second flow guiding member is disposed in the inlet liquid chamber 10a, and both ends of the second flow guiding member are respectively abutted against the partition member 19 and the lower cover 12. The heat exchange tube 21 conducts the outlet liquid chamber 10b through the second flow guiding channel. In this way, the liquid flowing out of the heat exchange tube 21 can be separated from the liquid in the inlet liquid chamber 10a, so that the liquid inside the second flow guiding channel will not penetrate with the liquid inside the inlet liquid chamber 10a, and guides the liquid to pass through the inlet liquid chamber 10a and fill into the outlet liquid chamber 10b, and finally flows into the water outlet outer connecting pipe through the water outlet interface 41.

[0075] It should be supplemented and explained here that the lower chamber on the side close to the heat exchanger 20 of the above-mentioned flow distributor 10 is configured as the inlet liquid chamber 10a, and the upper chamber on the side away from the heat exchanger 20 is configured as the outlet liquid chamber 10b. Therefore, the liquid will flow through the water inlet interface 31 and the first flow guiding channel in sequence from the water inlet outer connecting pipe and then fill into the inlet liquid chamber 10a, while the liquid flowing out of the heat exchange tube 21 passes through the second flow guiding channel through the inlet liquid chamber 10a and fills into the outlet liquid chamber 10b. The flow distributor 10 of the present application can configure the lower chamber on the side close to the heat exchanger 20 as the outlet liquid chamber 10b according to design requirements or structural design, and the upper chamber on the side away from the heat exchanger 20 is configured as the inlet liquid chamber 10a. At this time, the liquid will first fill into the inlet liquid chamber 10a from the water inlet outer connecting pipe and flow into the heat exchange tube 21 after passing through the outlet liquid chamber 10b through the first flow guiding channel, while the liquid flowing out of the heat exchange tube 21 first fills into the outlet liquid chamber 10b and flows into the water outlet interface 41 of the water outlet joint 4 after passing through the inlet liquid chamber 10a through the second flow guiding channel.

[0076] It can be understood that, please combine Figures 1 to 6As shown, the manifold 10 is disposed outside the housing and connected to the housing. At this time, the housing 1 of the manifold 10 is inserted and fitted with the heat exchange tubes 21 of the heat exchanger 20. When the liquid entering the liquid inlet chamber 10a from the water inlet interface 31 flows into a plurality of heat exchange tubes 21 at the same time, the liquid inlet chamber 10a serves to distribute the liquid to the plurality of heat exchange tubes 21. When the liquid flowing out of the plurality of heat exchange tubes 21 enters the liquid outlet chamber 10b, the liquid outlet chamber 10b serves to collect the liquid from the plurality of heat exchange tubes 21.

[0077] Figure 6 The flow path schematic diagram of the manifold 10 is shown, in which the solid arrows represent the flow paths of the liquid flowing through the conduction member 13, and the dashed arrows represent the flow paths of the liquid flowing through the heat exchange tubes 21, and in combination with Figure 5 the liquid flow paths shown. The manifold 10 further includes a conduction member 13, which includes a first conduction member 131 and a second conduction member 132. The first conduction member 131 is disposed in the liquid inlet chamber 10a and is used to conduct two heat exchange tubes 21 in the liquid inlet chamber 10a, and the second conduction member 132 is disposed in the liquid outlet chamber 10b and is used to conduct two heat exchange tubes 21 in the liquid outlet chamber 10b. On the one hand, the conduction member 13 provides a more direct and smooth flow channel for the liquid, reducing or even avoiding the turbulent flow and eddy current phenomena caused by the complex flow paths 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 the energy loss. On the other hand, the conduction member 13 is used to conduct adjacent two heat exchange tubes 21, not only enabling the liquid participating in heat exchange to be more reasonably distributed and flow between different heat exchange tubes 21, avoiding the situation of too large or too small liquid flow rate in some heat exchange tubes 21, so that the heat exchange effects of each heat exchange tube 21 are more uniform. At the same time, it also makes the flow rate and flow volume 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 wall of the heat exchange tubes 21 more uniform, which is conducive to the full transfer of heat from the high-temperature side to the low-temperature side. Therefore, under the action of the conduction member 13, it helps to improve the heat exchange efficiency of the entire fan coil unit 100 and reduce the local overheating or overcooling phenomena caused by uneven heat exchange.

[0078] It should be noted that the above-mentioned conducting member 13 and the heat exchange tube 21 jointly constitute a heat exchange flow path, and the liquid will flow along the extension direction of the heat exchange flow path and exchange heat with the air flowing through the heat exchanger 20. Among them, the first conducting member 131 and the second conducting member 132 cooperate with each other, extremely effectively extending the length of the heat exchange flow path, that is, extending the flow path of the liquid. In this way, it can ensure that the heat exchange process of the liquid is more sufficient, greatly improving the heat exchange effect. In actual design, according to specific design requirements and structural design schemes, the manifold 10 can be configured with only the first conducting member 131 in the liquid inlet chamber 10a, or only the second conducting member 132 in the liquid outlet chamber 10b. In addition, in this embodiment, the numbers of the first conducting member 131 and the second conducting member 132 are not specifically limited, and the numbers of the first conducting member 131 and the second conducting member 132 can be flexibly set according to actual design requirements to better adapt to the performance requirements under different working conditions.

[0079] It should also be noted that the above-mentioned conducting member 13 is disposed on at least one of the upper cover 11, the lower cover 12, and the partition member 19. In this embodiment, as Figure 5 shown, the conducting member 13 is integrally formed on the inner surface of the upper cover 11. In the area of the liquid inlet chamber 10a, the first conducting 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 conducting member 131 will abut against the lower cover 12 and accurately conduct the ports of the two heat exchange tubes 21. In the area of the liquid outlet chamber 10b, the second conducting 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 conducting member 132 also abuts against the lower cover 12 and conducts the ports of the two heat exchange tubes 21. Considering that the partition member 19 is disposed perpendicular to the 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 member 19 will block the flow of the liquid. As Figure 6 shown, the conducting member 13 can also be disposed on the partition member 19. In this way, the two heat exchange tubes 21 located below the partition member 19 are conducted with each other, ensuring that the liquid can flow smoothly between the two heat exchange tubes 21 and guaranteeing the smoothness of the liquid flow path in the entire heat exchange system. At the same time, the conducting member 13, as a part of the partition member 19, is equivalent to increasing the effective width of the partition member 19. From the perspective of the mechanical structure, a wider partition member 19 has stronger bending resistance and anti-deformation ability when resisting external forces. When facing the liquid pressure impact, the partition member 19 can better maintain its shape and position with better mechanical structure characteristics, reducing deformations, displacements, etc. caused by the pressure impact, thereby greatly enhancing the structural stability of the entire manifold 10.

[0080] In other embodiments, the conducting member 13 can also be integrally formed on the inner surface of the lower cover 12. The conducting member 13 extends from the lower cover 12 to the upper cover 11. When the upper cover 11 is covered on the lower cover 12, the conducting member 13 will abut against the upper cover 11 and accurately conduct the two heat exchange tubes 21. Of course, the conducting member 13 can also be only arranged on the partition member 19. For example, the partition member 19 is horizontally arranged, dividing the internal space surrounded by the upper cover 11 and the lower cover 12 into a liquid inlet chamber 10a and a liquid outlet chamber 10b. A first conducting member 131 is extended and arranged on one side of the partition member 19 facing the liquid inlet chamber 10a, and a second conducting member 132 is extended and arranged on one side of the partition member 19 facing the liquid outlet chamber 10b. When the upper cover 11 is covered on the lower cover 12, the first conducting member 131 abuts and fits against the upper cover 11, the second conducting member 132 abuts and fits against the lower cover 12, and both the first conducting member 131 and the second conducting member 132 can communicate with the heat exchange tubes 21, enabling the liquid to flow between the two heat exchange tubes 21 through the conducting member 13. In actual design, according to specific design requirements and structural design schemes, some of the conducting members 13 can be arranged on the upper cover 11, and some of the conducting members 13 can be arranged on the lower cover 12.

[0081] Specifically, please refer to Figure 5 As shown, the lower cover 12 of the housing 1 has a plurality of pipe passing openings 12a adapted to the pipe diameters of the heat exchange tubes 21. The pipe passing openings 12a are used for the heat exchange tubes 21 to pass through and be inserted into the heat exchange tubes 21. To ensure the stability of the connection between the pipe passing openings 12a and the heat exchange tubes 21, an expansion tube process can be used to seal the connection between the heat exchange tubes 21 and the lower cover 12. A conducting inner cavity 133 is provided inside the conducting member 13, and along the direction perpendicular to the lower bottom surface of the lower cover 12, the conducting inner cavity 133 covers two adjacent pipe passing openings 12a, and the two adjacent pipe passing openings 12a communicate with the conducting inner cavity 133. Among them, the arrangement form of the plurality of pipe passing openings 12a can be: the plurality of pipe passing openings 12a are arranged in a row direction, and the conducting member 13 communicates with two adjacent pipe passing openings 12a in the row direction. Or, the plurality of pipe passing openings 12a are arranged in a column direction, and the conducting member 13 communicates with two adjacent pipe passing openings 12a in the column direction. Or, the plurality of pipe passing openings 12a are arranged in a row direction and in a column direction, some of the conducting members 13 communicate with two adjacent pipe passing openings 12a in the row direction, and the remaining conducting members 13 communicate with two adjacent pipe passing openings 12a in the column direction.

[0082] With such an arrangement, in the actual fan coil unit 100, the settings of the pipe passing openings 12a and the conducting member 13 can flexibly cope with various layout situations. When the heat exchange tubes 21 are arranged in a simple row direction or column direction, the conducting member 13 can correspondingly communicate with two adjacent pipe passing openings 12a in the row direction or column direction to ensure the smooth flow of the liquid between the heat exchange tubes 21. For the heat exchange tubes 21 with a complex row-column mixed arrangement, some of the conducting members 13 communicate in the row direction and some communicate in the column direction, accurately adapting to this complex layout and meeting the liquid conduction requirements in different design scenarios.

[0083] Meanwhile, by connecting adjacent liquid inlet ports 12a through the conducting member 13, the liquid entering the liquid inlet chamber 10a can be more evenly distributed into different heat exchange tubes 21, and the 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 conducting member 13 is 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 the optimal flow rate conditions, improving the overall heat exchange efficiency. It also enables the liquid to flow more orderly between the heat exchange tubes 21, reducing the local resistance during the flow process, thereby improving the fluid transportation efficiency, reducing energy loss, and enhancing the operating performance of the entire fan coil unit 100 and the air conditioner indoor unit.

[0084] In addition, whether the connection is in the row direction, column direction, or a mixed row-column direction, the connection stability of the housing 1 is increased. Under the pressure impact generated by the liquid flow, such a stable partition member 19 can better withstand the external force, and can also more evenly disperse the pressure generated by the liquid acting on the pipes and the connection parts of the pipes during the flow process to the entire housing 1, thereby reducing the risk of loosening and falling off of the connection between the housing 1 and the heat exchange tubes 21. For example, in the case of a mixed row-column arrangement, the conducting 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 stress, and further enhancing the stability and reliability of the entire housing 1.

[0085] It should be added that, as shown in Figure 6 When the partition member 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 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 partition member 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 row direction is perpendicular to the extension direction of the partition member 19 or obliquely intersects with the partition member 19, and the column direction is parallel to the extension direction of the partition member 19.

[0086] It can be understood that in the case where the partition member 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 conducting member 13 conducts adjacent two heat exchange tubes 21 in the row direction and / or in the column direction, and uses the heat exchange tubes 21 below the partition member 19 to guide the liquid on the liquid inlet chamber 10a side to the liquid outlet chamber 10b side, thereby achieving the purpose that the heat exchange flow path formed by the conducting member 13 and the heat exchange tubes 21 connects the liquid inlet chamber 10a and the liquid outlet chamber 10b.

[0087] In addition to the above-mentioned methods, as a preferred method of this embodiment, please refer to Figure 6 As shown, the manifold 10 further includes a bridging conductor 17. The bridging conductor 17 is disposed through the partition member 19. Specifically, the bridging conductor 17 is provided on the partition member 19 and integrally formed with the partition member 19. An internal bridging cavity 171 is provided inside the bridging conductor 17, and the internal bridging cavity 171 covers two liquid passing ports 12a on both sides of the partition member 19, so that a part of the bridging conductor 17 is located in the liquid inlet cavity 10a and conducts with one heat exchange tube 21, and the remaining part is located in the liquid outlet cavity 10b and conducts with another heat exchange tube 21. Through such a setting, the following effects can be achieved:

[0088] 1. The way that the conductor 13 cooperates with the heat exchange tube 21 to guide the liquid to flow from the liquid inlet cavity 10a to the liquid outlet cavity 10b is relatively indirect. The bridging conductor 17 can directly connect the liquid inlet cavity 10a and the liquid outlet cavity 10b, establishing an efficient liquid flow shortcut between the heat exchange tubes 21 on both sides of the partition member 19, greatly simplifying the liquid flow path between the liquid inlet and outlet cavities 10b, shortening the heat exchange cycle, enabling more liquid to participate in the heat exchange process per unit time, improving the heat exchange efficiency of the entire fan coil unit 100, and thus being beneficial to efficiently adjusting the indoor temperature.

[0089] 2. The bridging conductor 17 is integrally formed with the partition member 19, which also enhances the structural strength of the partition member 19. At this time, the bridging conductor 17 is equivalent to adding additional support ribs to the partition member 19, strengthening the partition member 19 from multiple directions. When the liquid pressure impacts the partition member 19, the bridging conductor 17 can share part of the pressure and disperse it to a wider area. For example, in the liquid flow direction, the bridging conductor 17 can block and buffer part of the impact force, reducing its direct action on the local area of the partition member 19; in the direction perpendicular to the liquid flow direction, the bridging conductor 17 and the partition member 19 jointly resist the pressure difference on both sides. Through the structural synergy, the load-bearing capacity of the partition member 19 in a complex stress environment is enhanced, effectively reducing the risk of structural damage such as deformation and rupture of the partition member 19, thereby greatly enhancing the structural strength of the partition member 19 and ensuring the stable operation of the manifold 10.

[0090] 3. After the jumper conductor 17 and the separator 19 are integrally formed, it forms an integral 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 flow of liquid in the heat exchange tube 21 will generate a certain 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 disperse and buffer these forces with the help of the structural strength of the separator 19. Therefore, this will significantly improve the stability of the jumper part 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.

[0091] 4. Since the jumper conductor 17 can directly connect the heat exchange tubes 21 on both sides on the separator 19, the spatial layout of the heat exchange tubes 21 is more flexible. According to the overall structure and actual needs of the heat exchanger 20, the heat exchange tubes 21 can be arranged more compactly to increase the heat exchange area in the unit space, thereby achieving more efficient heat exchange in 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 the row direction, column direction, or in the row and column direction, the jumper conductor 17 can connect the corresponding heat exchange tubes 21 according to the established rules, avoiding the chaotic arrangement of the heat exchange tubes 21 caused by complex and diverse connection methods. Such a standardized arrangement order is not only convenient for the manufacture and installation of the heat exchanger 20, but also conducive to the later maintenance and overhaul. The staff can more clearly understand the connection relationship and fluid flow of the heat exchange tubes 21, which improves the maintenance efficiency and reduces the maintenance cost.

[0092] Preferably, if Figure 6As shown, a plurality of cross-connecting conductors 17 are arranged, and a plurality of conductors 13 are arranged both in the liquid inlet chamber 10a and the liquid outlet chamber 10b. The plurality of conductors 13, the plurality of heat exchange tubes 21 and the plurality of cross-connecting conductors 17 are configured to form a plurality of heat exchange flow paths. One end of each heat exchange flow path communicates with the liquid inlet chamber 10a, and the other end communicates with the liquid outlet chamber 10b. This enables the liquid participating in the heat exchange to flow in more paths, come into full contact with air or other heat exchange media, greatly increasing the heat exchange area and paths, thereby significantly improving the heat exchange efficiency of the entire heat exchanger 20 and being able to adjust the temperature more quickly and effectively. At the same time, the plurality of independent heat exchange flow paths can evenly distribute and flow the liquid between the liquid inlet chamber 10a and the liquid outlet chamber 10b. Each heat exchange flow path can relatively independently complete the heat exchange process, avoiding the situation where the liquid is concentrated in a few heat exchange flow paths, resulting in excessive heat exchange in some areas and insufficient heat exchange in other areas. This helps to make the heat exchange of the entire heat exchanger 20 more uniform and improve the accuracy and stability of temperature control.

[0093] In addition, during the liquid flow process, the plurality of heat exchange flow paths can disperse the pressure of the liquid. If there are only a few heat exchange flow paths, the liquid pressure may be concentrated on this heat exchange flow path, causing a large pressure on the heat exchange tube 21 and increasing the risk of leakage and damage. The plurality of heat exchange flow paths can share the liquid pressure, reduce the pressure borne by each heat exchange flow path, thereby reducing the probability of failures caused by excessive pressure and improving the stability and reliability of the fan coil unit 100 and the air conditioner indoor unit.

[0094] It should be supplemented here that please refer to Figure 3 and Figure 4 , the upper cover 11 has a first protrusion 1131 protruding axially along the water inlet joint 3, and the first protrusion 1131 extends along the outer peripheral side of the water inlet joint 3, so that the first protrusion 1131 surrounds the periphery of the water inlet joint 3. The height of the first protrusion 1131 is less than the height of the water inlet joint 3, or the top surface of the first protrusion 1131 is flush with the top surface of the water inlet joint 3. Similarly, the upper cover 11 also has a second protrusion 1132 protruding axially along the water outlet joint 4, and the second protrusion 1132 extends along the outer peripheral side of the water outlet joint 4, so that the second protrusion 1132 surrounds the periphery of the water outlet joint 4. The height of the second protrusion 1132 is less than the height of the water outlet joint 4, or the top surface of the second protrusion 1132 is flush with the top surface of the water inlet joint 3.

[0095] With such a setting, 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, form a tighter sealing structure, improve the sealing effect, maintain a good sealing state, and prevent 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.

[0096] On the other hand, the first protrusion 1131 and the second protrusion 1132 can, to a certain extent, protect the water inlet joint 3 and the water outlet joint 4 from external impact or abrasion, and effectively increase the structural strength and rigidity of the upper cover 11 at the positions of the water inlet joint 3 and the water outlet joint 4. When the device is subjected to external forces during installation, handling or use, the first protrusion 1131 and the second protrusion 1132 can absorb part of the impact force, reduce the possibility of direct contact between the water inlet joint 3 and the water outlet joint 4 and the outside world, and thus reduce the risk of damage to the water inlet joint 3 and the water outlet joint 4.

[0097] In addition, when installing the water inlet joint 3 and the water outlet joint 4, the first protrusion 1131 and the second protrusion 1132 can be used as a positioning reference for installation. Installers can more accurately install the joints to the appropriate positions according to the position and shape of the protrusions, ensure the correct relative position between the joints and the upper cover 11, and improve the installation efficiency and accuracy. In addition, the setting of the protrusions also makes it easier to align and install the seal 14.

[0098] As a preferred way of this embodiment, specifically, please refer to Figures 2 to 5 As shown, the manifold also includes an exhaust valve 2. The exhaust valve 2 is provided at the top of the housing 1, that is, the exhaust valve 2 is provided on the upper cover 11 of the housing 1, and an exhaust passage is provided inside the exhaust valve 2. An exhaust port 11c is provided on the upper cover 11 of the housing 1. The central axis of the exhaust passage coincides with the exhaust port 11c. The exhaust port 11c can conduct the exhaust passage, so that the exhaust passage of the exhaust valve 2 can discharge the gas in the housing 1. The exhaust valve 2 can selectively communicate with the liquid inlet chamber 10a or the liquid outlet chamber 10b. In actual application scenarios, multiple exhaust valves 2 can be configured according to specific needs. Some exhaust valves 2 communicate with the liquid inlet chamber 10a, and the other part communicates with the liquid outlet chamber 10b. One part of the exhaust valves 2 communicates with the liquid inlet chamber 10a, and the other part communicates with the liquid outlet chamber 10b. It should be noted that the exhaust valve 2 belongs to the well-known and mature prior art in the field, so its specific structure will not be described in detail here.

[0099] During the assembly process of the fan coil unit 100, it is necessary to inject liquid to expel the air in components such as the heat exchanger 20 within the fan coil unit 100. By using the exhaust valve 2, the air inside the fan coil unit 100 can be discharged in a timely manner, enabling 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 resistance will be formed, resulting in the liquid being unable to fully fill the heat exchanger 20, reducing its effective heat transfer area, thereby affecting the heat exchange efficiency, and it is also prone to local overheating or overcooling phenomena. The presence of the exhaust valve 2 ensures that the liquid can be fully filled, enabling the heat exchanger 20 to reach the optimal working state during the initial operation. At the same time, it can also reduce the content of dissolved oxygen in the liquid, effectively reducing or avoiding the occurrence of cavitation, extending the service life of the fan coil unit 100, and reducing the later maintenance and replacement costs.

[0100] Preferably, if the exhaust valve 2 is connected to the liquid inlet chamber 10a, the exhaust valve 2 is arranged on the periphery of the water inlet joint 3. If the exhaust valve 2 is connected to the liquid outlet chamber 10b, the exhaust valve 2 is arranged on the periphery of the water outlet joint 4. In this way, during the installation, commissioning, or daily maintenance process, the assembly personnel can easily utilize the intuitive recognition of the positional relationship, reducing the possibility of operation errors caused by misjudgment. Even relatively inexperienced personnel can quickly and accurately identify and operate, playing a good anti-fooling role.

[0101] As a further preferred embodiment of this example, the exhaust valve 2 is a waterproof breathable valve. Please refer to Figures 2 to 5 As shown, the exhaust valve 2 includes a valve body main body 21, a valve seat 22, and a waterproof breathable membrane. The valve body main body 21 is detachably connected to the housing 1. The waterproof breathable membrane is arranged inside the valve body main body 21 for preventing the liquid inside the housing 1 from flowing out and discharging the gas inside the housing 1. The valve seat 22 is fixedly connected to the upper cover 11, and the valve body main body 21 is detachably connected to the valve seat 22. This detachable connection can be selected as a crimping connection or a threaded connection.

[0102] In this way, the waterproof breathable membrane can effectively prevent the liquid inside the housing 1 from flowing out, avoiding the risk of liquid leakage. At the same time, by utilizing the good air permeability of the waterproof breathable membrane, it can also quickly and effectively discharge the gas accumulated inside the housing 1, ensuring that the gas inside the liquid inlet chamber 10a and the liquid outlet chamber 10b is discharged in a timely manner, maintaining the pressure balance within the system, and ensuring the smooth flow of the liquid within the system. More importantly, the waterproof breathable valve does not require frequent manual operation or adjustment. When the gas pressure inside the housing 1 reaches a certain level, the gas can automatically pass through the waterproof breathable membrane and be discharged. This automatic exhaust function reduces manual intervention, reduces the work intensity of the operator, and also avoids the problem of untimely exhaust caused by human negligence in not opening the exhaust valve 2 in a timely manner, further improving the convenience and reliability of exhaust.

[0103] Furthermore, please refer to Figures 3 to 5As shown in the figure, a third protrusion 1133 is also convexly provided on the upper cover 11 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, and the third protrusion 1133 extends along the circumferential side of the valve seat 22 of the exhaust valve 2, so that the third protrusion 1133 surrounds the circumferential side of the valve seat 22. Wherein, 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.

[0104] In this way, the third protrusion 1133 and the valve seat 22 are closely matched, which can provide additional support for the sealing of the exhaust valve 2. Even if the seal 14 has a small displacement or deformation due to vibration and temperature changes during the operation of the equipment, the third protrusion 1133 can still maintain a good sealing state, prevent the leakage of gas and liquid, and ensure the efficient operation of the exhaust system. At the same time, from the perspective of structural mechanics, the third protrusion 1133 enhances the structural strength of the upper cover 11 at the installation position of the exhaust valve 2. When the fan coil unit 100 operates, the change of the internal pressure will generate stress on the exhaust valve 2 and the surrounding structure. The third protrusion 1133 can effectively disperse these stresses, prevent the upper cover 11 from deforming or being damaged due to long-term stress in the area around the exhaust valve 2, improve the stability and reliability of the entire equipment structure, and ensure the normal operation of the fan coil unit 100 under complex working conditions. In addition, during the installation of the exhaust valve 2, the third protrusion 1133 provides a clear positioning mark for the installer, which is convenient for accurately installing the exhaust valve 2 and improving the installation efficiency and accuracy.

[0105] It should be noted that the upper cover 11 and the lower cover 12 of the housing 1 can be made of aluminum or aluminum alloy materials. Of course, the upper cover 11 and the lower cover 12 of the housing 1 can also be made of plastic. The above-mentioned water inlet joint 3, water outlet joint 4, and valve seat 22 can be integrally formed with the upper cover 11 by injection molding, die casting and other processes, or the valve seat 22, water inlet joint 3, and water outlet joint 4 can be separate components and can be assembled to the upper cover 11 one by one.

[0106] Considering that it is easy to corrode when the housing 1 is only made of aluminum or aluminum alloy materials, since there are inevitably dissolved oxygen, chloride ions and other components in water, and dissolved oxygen is easy to form a corrosion cell on the surface of aluminum, accelerating the oxidation corrosion of aluminum. Chloride ions have strong penetrability and can destroy the originally protective oxide film on the surface of aluminum, making aluminum directly exposed to the corrosion environment, causing local corrosion phenomena such as pitting corrosion and crevice corrosion. Regarding the above problems, the present application further discloses a preferred solution to effectively solve the corrosion problem of the manifold housing 1.

[0107] Specifically, please refer to Figures 7 to 9, the liquid distributor further includes an upper anti-corrosion shell 16 and a lower anti-corrosion shell. Among them, the upper anti-corrosion shell 16 is at least disposed inside the upper cover 11, and the lower anti-corrosion shell is at least disposed inside 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. And the materials of the metal parts include but are not limited to the above-mentioned aluminum materials and aluminum alloys, and other metal materials such as copper materials or iron materials 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 able to provide key protection for solving the corrosion problem of the liquid distributor housing 1 made of aluminum. Further, the upper anti-corrosion shell 16 is closely attached to the inside of the upper cover 11, the lower anti-corrosion shell is stably installed inside the lower cover 12, and together they build a corrosion-resistant liquid inlet chamber 10a and a liquid outlet chamber 10b.

[0108] Specifically, please refer to Figures 7 to 9 , the upper cover 11 includes an upper top wall 111 and an upper side wall 112. Among them, the upper top wall 111 is disposed on the top of the upper anti-corrosion shell 16, and the upper top wall 111 is in contact with the top of the upper anti-corrosion shell 16. The upper side wall 112 extends downward from the upper top wall 111 toward the lower cover 12 and surrounds at least part of the circumference of the upper anti-corrosion shell 16. This structural design not only enhances the support for the upper anti-corrosion shell 16, making it more stable when bearing the internal liquid pressure, effectively ensuring the overall structural strength and structural stability of the housing 1, but also further reducing the influence of the external environment on the internal structure.

[0109] Further, please refer to Figures 7 to 9 , the upper anti-corrosion shell 16 includes an upper shell main body 1611 and an outward convex edge 1612. The outward convex edge 1612 extends outward from the upper shell main body 1611. The upper side wall 112 surrounds the circumference of the upper shell main body 1611 and extends to the outward convex edge 1612. In this embodiment, the outward convex edge 1612 is preferably located on the side of the upper shell main body 1611 close to the lower anti-corrosion shell, that is, the outward convex edge 1612 is located at the opening edge of the upper shell main body 1611, and the outward convex edge 1612 extends along the circumference of the upper shell main body 1611.

[0110] 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, so that the connection between the upper anti-corrosion shell 16 and the upper cover 11 is tighter and firmer, 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 with the upper shell body 1611 when subjected to 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 through hole 11a and water outlet through hole 11b both pass through the upper anti-corrosion shell 16 and the upper cover 11 to ensure the smooth flow of the liquid inlet path and the liquid outlet path. When liquid flows into the liquid inlet cavity 10a through the water inlet hole 11a, the upper anti-corrosion shell 16 can effectively prevent the liquid from directly contacting the aluminum material of the upper cover 11, and also prevent the liquid from directly contacting the aluminum material of the lower cover 12 to cause corrosion reaction, thereby avoiding corrosion of the upper cover 11 by dissolved oxygen, chloride ions and other components in the liquid. The multiple pipe ports 12a also penetrate the lower cover 12, and the lower anti-corrosion shell is provided with multiple liquid holes 144, and each liquid hole 144 is connected to the corresponding pipe port 12a. The heat exchange tube 21 is connected to the liquid inlet cavity 10a and the liquid outlet cavity 10b through the pipe port 12a and the liquid hole 144, so that the liquid can enter the heat exchange tube 21.

[0111] Preferably, please refer to Figure 9 As shown, the conducting member 13 and the cross-conducting 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 conducting member 13 and the cross-conducting member 17 themselves have good anti-corrosion performance. Preferably, the conducting member 13 extends downward from the upper anti-corrosion shell 16. When the lower cover 12 is installed in place, the conducting member 13 accurately abuts against the lower anti-corrosion shell and conducts 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-conducting member 17 is passed through the partition 19 and is integrally formed with the partition 19. Its cross-conducting inner cavity 171 covers the tube ports 12a on both sides of the partition 19. Part of the cross-conducting member 17 is located in the liquid inlet cavity 10a and is connected to a heat exchange tube 21, and the remaining part is located in the liquid outlet cavity 10b and is connected to another 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 piece 13 and the jumper conductive piece 17 with the liquid, greatly improving the corrosion resistance of the liquid distributor, ensuring its long-term stable operation under complex working conditions, effectively extending the service life of the liquid distributor and the fan coil 100, and ensuring the efficient and stable operation of the entire air-conditioning indoor unit.

[0112] Furthermore, the lower anti-corrosion shell includes a lower shell body 1621 and an outer extension part 1622. The outer extension part 1622 extends outward from the lower shell body 1621 and abuts against the outer convex edge 1612. A plurality of the above-mentioned liquid passing holes 144 are provided on the lower shell body 1621. Preferably, the lower anti-corrosion shell serves as the seal 14 of the flow divider 10. Specifically, the lower anti-corrosion shell serves as the upper sealing part 141 of the seal 14 to seal the gap between the upper cover 11 and the lower cover 12.

[0113] With such a setting, the outer extension part 1622 will closely abut against the outer convex edge 1612, not only forming a reliable sealing line of defense between the two. When the water or refrigerant inside the flow divider 10 flows, this sealing structure can effectively prevent the liquid from leaking from the connection between the upper and lower anti-corrosion shells, avoiding the liquid from coming into contact with the external aluminum material, thereby significantly improving the overall anti-corrosion performance. At the same time, it also enables the upper anti-corrosion shell 16 and the lower anti-corrosion shell to support each other at the connection, enhancing the stability of the entire anti-corrosion structure. During the operation of the fan coil unit 100, even if the internal fluid pressure fluctuates, or the equipment is subjected to external force impacts due to vibration, this abutting structure can better disperse the stress, prevent displacement or deformation between the upper anti-corrosion shell 16 and the lower anti-corrosion shell, ensure the stable structure of the entire flow divider 10, and maintain normal operation.

[0114] It should be noted that the lower anti-corrosion shell serving as the seal 14 of the flow divider 10 can also be at least partially clamped between the upper cover 11 and the lower cover 12, that is, the upper cover 11 abuts against the seal 14, which can also ensure the sealing performance in the closed state between the upper cover 11 and the lower cover 12. The upper anti-corrosion shell 16 and the lower anti-corrosion shell can be made of polytetrafluoroethylene material. In addition, the upper anti-corrosion shell 16 and the lower anti-corrosion shell can also be made of rubber material.

[0115] As a further preferred embodiment, specifically, please refer to Figures 7 to 9 , the seal 14 further includes an inner-hole sealing part 142. The inner-hole sealing part 142 extends from the lower shell body 1621 toward the inner side of the pipe passing port 12a, and the inner-hole sealing part 142 is arranged in a sleeve shape on the hole wall of the pipe passing port 12a. The inner-hole sealing part 142 is used for interference fit with the part of the heat exchange tube 21 passing through the pipe passing port 12a, thereby forming a highly reliable sealing barrier between the heat exchange tube 21 and the pipe passing port 12a. This will effectively prevent the liquid from leaking out from the gap between the heat exchange tube 21 and the pipe passing port 12a, avoid the liquid from leaking to the outside of the flow divider 10, thereby ensuring the normal operation of the system and reducing the performance degradation and maintenance cost caused by leakage.

[0116] In addition, the in-hole sealing portion 142 plays a certain role in supporting and positioning the heat exchange tube 21 within the pipe passing orifice 12a. During the operation of the fan coil unit 100, when there are pressure fluctuations in the internal fluid or the equipment is vibrated, the swaying of the heat exchange tube 21 can be reduced, avoiding structural damage caused by friction and collision between the heat exchange tube 21 and the pipe passing orifice 12a.

[0117] As a further preferred embodiment, specifically, please refer to Figure 10 As shown, the seal 14 further includes a lower sealing portion 143. The in-hole sealing portion 142 extends towards the inner side of the pipe passing orifice 12a and protrudes beyond the pipe passing orifice 12a. The lower sealing portion 143 is disposed on the lower surface of the lower cover 12 and is connected to the in-hole sealing portion 142. The upper sealing portion 141, the in-hole sealing portion 142, and the lower sealing portion 143 are preferably integrally formed. After the assembly of the fan coil unit 100 is completed, the lower sealing portion 143 will be clamped between the lower cover 12 and the heat exchanger 20.

[0118] It should be supplemented that, please refer to Figures 7 to 9 In this embodiment, the upper cover 11 is convexly formed on the side facing away from the upper anti-corrosion shell 16 with 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 convexly provided along the central axis of the exhaust passage of the exhaust valve 2 and on the side facing away from the upper anti-corrosion shell 16 to form the above-mentioned third protrusion 1133.

[0119] Considering that when the upper cover 11 and the lower cover 12 of the housing 1 are made of plastic, during the operation of the fan coil unit 100, the manifold 10 internally bears the pressure impact of the liquid, with frequent and large-amplitude pressure fluctuations. In this case, the plastic upper cover 11 and lower cover 12 are difficult to withstand the continuous pressure, and deformation is likely to occur. Moreover, the vibration generated during the operation of the fan coil unit 100 will also cause continuous mechanical stress on the manifold 10. Under the long-term vibration effect, the structural strength of the plastic manifold 10 gradually decreases, further exacerbating the deformation problem and even possibly causing cracks. To address the above problems, the present application further discloses another preferred solution to solve the problem of low structural strength when the manifold is made of plastic.

[0120] Please refer to Figures 11 to 13, the housing 1 includes a plastic part 151 and a reinforcing member 152, and the reinforcing member 152 is embedded in the plastic part 151. Among them, the reinforcing member 152 can be made of high-strength metal materials such as stainless steel and aluminum alloy, or high-performance composite materials such as carbon fiber. These reinforcing members 152 have excellent mechanical properties and can significantly make up for the shortcoming of the plastic material in terms of strength. When dealing with the impact of liquid pressure, the reinforcing member 152, relying on its own high-strength characteristics, bears most of the pressure load. When high-pressure liquid flows in the manifold 10 and generates pressure impact, the reinforcing member 152 acts like a solid skeleton to disperse the pressure and effectively prevent the plastic part 151 from undergoing local depression or bulging deformation due to excessive pressure.

[0121] When facing the continuous vibration generated by the operation of the fan coil unit 100, the reinforcing member 152 is tightly combined with the plastic part 151 to jointly resist mechanical stress. The presence of the reinforcing member 152 enhances the rigidity of the entire housing 1 and reduces the impact of vibration on the plastic part 151. Under the long-term vibration effect, the reinforcing member 152 can effectively inhibit the decline of the structural strength of the plastic part 151 and prevent cracks caused by vibration fatigue. For example, the reinforcing member 152 made of continuous fiber-reinforced composite material is laid along the stress direction of the plastic part 151, which can greatly improve the fatigue resistance of the plastic part 151 in a vibrating environment and ensure that the housing 1 remains structurally stable under long-term vibration conditions.

[0122] Specifically, please refer to Figures 11 to 13 , at least one of the above upper cover 11 and lower cover 12 includes a plastic part 151. That is, in one case, both the upper cover 11 and the lower cover 12 include a plastic part 151, and in one case, only one of the upper cover 11 and the lower cover 12 includes a plastic part 151, and the upper cover 11 and the lower cover 12 are made of other materials. The following will elaborate in detail on the structure and related characteristics of the upper cover 11 including the plastic part 151.

[0123] The upper cover 11 is provided with an upper clamping groove 115 on one side facing downwards the lower cover 12. The shape and size of the upper clamping groove 115 are precisely adapted to the shape and size of the reinforcing member 152. The upper clamping groove 115 can be formed as an upper notch only in the direction perpendicular to the top surface of the upper cover 11, or the upper clamping groove 115 can penetrate at least one side of the upper cover 11 along the length of the groove to form a side notch for the reinforcing member 152 to be embedded inside the upper clamping groove 115. The surface of the upper clamping groove 115 and / or the peripheral side surface of the reinforcing member 152 are specially treated to have a certain roughness, thereby enhancing the friction force with the reinforcing member 152 to ensure that the reinforcing member 152 can be firmly embedded in the upper clamping groove 115. Of course, processes such as hot pressing and injection molding are used to closely integrate the reinforcing member 152 with the plastic part 151 of the upper cover 11 to form a firm structure. It can be understood that in the direction perpendicular to the top surface of the upper cover 11, the reinforcing member 152 covers at least part of the liquid inlet cavity 10a and at least part of the liquid outlet cavity 10b. Further, both the water outlet joint 4 and the water outlet joint 4 are fixedly connected to the reinforcing member 152. The connection method here can be welding, riveting, bolt connection, or threaded connection, etc.

[0124] In this way, the reinforcing member 152 will be able to be more conveniently and accurately embedded into the upper clamping groove 115. At the same time, the reinforcing member 152 is closely integrated with the plastic part 151 of the upper cover 11 to form a firm structure. This close integration enables the reinforcing member 152 and the plastic part 151 to work better together, jointly bear the load when subjected to external forces, effectively improving the overall structural strength and anti-deformation ability of the upper cover 11, enabling it to better cope with the pressure shock and vibration generated during the operation of the fan coil unit 100.

[0125] Preferably, as Figure 13 shown, the upper cover 11 further includes an outer sealing layer 114. The outer sealing layer 114 is provided on the side of the reinforcing member 152 facing away from the lower cover 12 to seal the upper notch of the upper clamping groove 115 in the direction perpendicular to the top surface of the upper cover 11, and the outer sealing layer 114 abuts and fits against the reinforcing member 152, so that the reinforcing member 152 is clamped between the outer sealing layer 114 and the groove wall of the upper clamping groove 115. The outer sealing layer 114 is fixedly connected to other parts of the upper cover 11. The fixed connection here can be selected as integral molding, or can also be selected to be connected and fixed by fasteners (such as bolts, screws, studs, rivets, etc.), or can also be selected as snap connection. During the installation of the reinforcing member 152 into the upper clamping groove 115, it is only necessary to insert the reinforcing member 152 into the upper clamping 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 can also be made of a material different from the plastic part 151.

[0126] With such a setting, since the outer seal layer 114 seals the upper notch, it can effectively prevent the reinforcing member 152 from being exposed, avoiding the erosion of the reinforcing member 152 by external environmental factors such as dust, moisture, corrosive gases, etc., thereby prolonging the service life of the reinforcing member 152 and ensuring the continuity of its enhancement of the structural strength. At the same time, the presence of the outer seal layer 114 makes the surface of the upper cover 11 smoother, improving the overall aesthetic appearance of the product. In addition, it further enhances the structural stability of the upper cover 11, which is beneficial for the manifold 10 to withstand the liquid pressure impact and the mechanical stress generated by the equipment vibration.

[0127] It should be noted that the outer seal layer 114 can be convexly arranged along the central axis of the water inlet joint 3 and towards the side away from the reinforcing member 152 to form the above-mentioned first protrusion 1131, and the first protrusion 1131 surrounds the periphery of the water inlet joint 3. It is also possible to convexly arrange the reinforcing member 152 along the central axis of the water inlet joint 3 and towards the side away from the reinforcing member 152 to form the above-mentioned first protrusion 1131. When the outer seal layer 114 is configured, the first protrusion 1131 can extend out of the outer seal layer 114 or be flush with the outer side surface of the outer seal layer 114.

[0128] Similarly, the outer seal layer 114 can be convexly arranged along the central axis of the water outlet joint 4 and towards the side away from the reinforcing member 152 to form the above-mentioned second protrusion 1132, and the second protrusion 1132 surrounds the periphery of the water outlet joint 4. It is also possible to have a second protrusion 1132 convexly arranged on the reinforcing member 152 along the axis of the water outlet joint 4. When the outer seal layer 114 is configured, the second protrusion 1132 can extend out of the outer seal layer 114 or be flush with the outer side surface of the outer seal layer 114.

[0129] In addition, the outer seal layer 114 can be convexly arranged along the central axis of the internal exhaust passage of the exhaust valve 2 and towards the side away from the reinforcing member 152 to form the above-mentioned third protrusion 1133, and the third protrusion 1133 surrounds the periphery of the water outlet joint 4. It is also possible to convexly arrange the reinforcing member 152 along the central axis of the exhaust passage and towards the side away from the reinforcing member 152 to form the third protrusion 1133. When the outer seal layer 114 is configured, the second protrusion 1132 can extend out of the outer seal layer 114 or be flush with the outer side surface of the outer seal layer 114.

[0130] In this embodiment, the water inlet through hole 11a, the water outlet through hole 11b and the exhaust port 11c all penetrate the plastic part 151 and the reinforcement 152 of the upper cover 11. When the fan coil unit 100 is in operation, the liquid flows into the liquid inlet chamber 10a at a high speed through the water inlet through hole 11a. The reinforcement 152, with its high strength characteristics, effectively disperses the pressure generated by the impact of the liquid, prevents the plastic part 151 from being deformed or broken due to excessive pressure around the water inlet through hole 11a, and ensures that the water inlet path is stable and unobstructed. When the liquid is discharged from the water outlet through hole 11b, the force exerted on the upper cover 11 by the flow rate and pressure changes is resisted by the reinforcement 152, maintaining the structural stability of the upper cover 11, preventing local deformation caused by the outflow of liquid, and ensuring the smooth discharge process.

[0131] Preferably, the inner wall of the water inlet interface 31 is flush with the inner hole wall of the water inlet through hole 11a located on the inner side of the shell 1, and the inner wall of the water outlet interface 41 is flush with the inner hole wall of the water outlet through hole 11b located on the inner side of the shell 1. The flushing here should be understood as the aperture of the water inlet through hole 11a located on the inner side of the shell 1 is equal to the caliber of the water inlet interface 31, or the aperture of the water inlet through hole 11a located on the inner side of the shell 1 is larger than the caliber of the water inlet interface 31 within the assembly tolerance range. Similarly, the aperture of the water outlet through hole 11b located on the inner side of the shell 1 is slightly larger than the caliber of the water outlet interface 41, or the aperture of the water outlet through hole 11b located on the inner side of the shell 1 is slightly larger than the caliber of the water outlet interface 41 within the assembly tolerance range.

[0132] In this way, not only can the liquid be ensured to enter the internal space of the housing 1 more smoothly and stably, but also the flow resistance and turbulence caused by the change of the aperture or the incoaxiality of the interface and the through hole are reduced, the fluid delivery efficiency is improved, and the fan coil unit 100 system is helped to operate more efficiently. At the same time, the dead angles and eddy current areas generated by the fluid during the flow process are reduced, and the possibility of impurities and corrosive substances in the fluid accumulating in these areas is reduced, 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.

[0133] 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 member 152 of the upper cover 11, they constitute a complete structural system to jointly ensure the stable operation of the fan coil unit 100.

[0134] In addition, the aforementioned lower cover 12 may further include a plastic part 151. The structure and related characteristics of the lower cover 12 including the plastic part 151 will be elaborated in detail below. 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 reinforcing member 152. And a lower notch facing the heat exchanger 20 may be provided in the lower embedding groove in a direction perpendicular to the bottom surface of the lower cover 12. Or, the lower embedding groove may penetrate at least one side of the lower cover 12 along the length of the groove to form a lower side opening for the reinforcing member 152 to be embedded inside the lower embedding groove. In this way, the reinforcing member 152 will be able to be more conveniently and accurately embedded into the lower embedding groove. At the same time, the reinforcing member 152 and the plastic part 151 of the lower cover 12 are tightly combined into one body to form a firm structure. This tight combination enables the reinforcing member 152 and the plastic part 151 to work better together, bear the load jointly when bearing external forces, effectively improving the overall structural strength and anti-deformation ability of the lower cover 12, enabling it to better cope with the pressure impact and vibration generated during the operation of the fan coil unit 100.

[0135] When the aforementioned lower cover 12 is installed to the heat exchanger 20, the reinforcing member 152 directly abuts against the heat exchanger 20. Or, the reinforcing member 152 embedded in the lower embedding groove abuts against the lower sealing part 143 of the sealing member 14. In addition to this method, the lower cover 12 further includes a bottom sealing layer. The bottom sealing layer is provided on the side of the reinforcing member 152 facing away from the upper cover 11 to seal the lower notch of the lower embedding groove in the direction perpendicular to the bottom surface of the lower cover 12. And the outer sealing layer 114 abuts against and fits the reinforcing member 152, so that the reinforcing member 152 is clamped between the bottom sealing layer and the groove wall of the lower embedding groove. The bottom sealing layer is fixedly connected to other parts of the lower cover 12. The fixed connection here can be selected as integral molding, or can be selected to be connected and fixed by fasteners (such as bolts, screws, studs, rivets, etc.), or can also be selected as snap connection. During the process of installing the reinforcing member 152 into the lower embedding groove, it is only necessary to insert the reinforcing member 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 also be made of a material different from the plastic part 151.

[0136] At this time, the bottom sealing layer of the lower cover 12 directly abuts against the heat exchanger 20. This can avoid situations such as wear and corrosion that may occur when the reinforcing member 152 directly contacts the heat exchanger 20, contributing to protecting the performance of the reinforcing member 152 and the overall structural integrity of the lower cover 12 and extending its service life.

[0137] It can be understood that the above-mentioned pipe passing orifice 12a penetrates through the plastic part 151 and the reinforcing member 152 of the lower cover 12. The reinforcing member 152 is embedded around the peripheral area of the pipe passing orifice 12a, playing a key strengthening role in the position where the pipe passing orifice 12a is located. When the fan coil unit 100 operates, the liquid enters and exits through the pipe passing orifice 12a, which will generate a certain pressure on the lower cover 12. At this time, with its own high strength, the reinforcing member 152 effectively disperses the pressure brought by the liquid flow, preventing the plastic part 151 from deforming, cracking, etc. due to excessive pressure around the pipe passing orifice 12a, ensuring the structural stability at the pipe passing orifice 12a, guaranteeing the smooth flow of the liquid through this place, avoiding liquid leakage caused by the structural damage of the pipe passing orifice 12a, and maintaining the normal operation of the fan coil unit 100 system.

[0138] Furthermore, in this application, considering that during the operation of the air conditioner indoor unit, the surface temperature of the heat exchanger 20 is relatively low, and the water vapor in the air near the heat exchanger 20 will condense into water droplets when it meets the cold. And the condensed water droplets flow randomly, which may drip onto other components of the air conditioner indoor unit, such as electrical components, motors, etc., resulting in the components being damaged by moisture, affecting the normal operation and service life of the air conditioner.

[0139] Regarding the above existing problems, please refer to Figure 1 , the air conditioner indoor unit further includes a water receiving tray 200. The water receiving tray 200 is arranged at the bottom of the heat exchanger 20 and extends out of the casing on the side close to the manifold 10, so that the upward projection of the water receiving tray 200 can cover the manifold 10. This setting enables the condensed water droplets to flow towards the water receiving tray 200 under the action of gravity, facilitating the rapid discharge of the condensed water droplets from the air conditioner indoor unit. Since the manifold 10 is within the coverage range of the water receiving tray 200, the condensed water flowing down from the heat exchanger 20 can drain away more smoothly through the water receiving tray 200, reducing the accumulation or backflow of condensed water inside the unit, and improving the drainage efficiency and reliability. In this way, even in a situation with high environmental humidity, the possibility of condensation occurring due to the contact between the outer surface of the casing and the cold manifold 10 can be reduced, keeping the appearance of the air conditioner indoor unit clean and dry, and enhancing the user experience.

[0140] It should be noted that the heat exchanger 20 further includes an upper side plate 20a and a lower side plate 20b. Among them, the upper side plate 20a is arranged on the side of the heat exchanger 20 close to the manifold 10, and the lower side plate 20b is arranged on the side of the heat exchanger 20 facing away from the manifold 10. The heat exchanger 20 is installed and fixed to the casing of the air conditioner indoor unit through the upper side plate 20a and the lower side plate 20b. Preferably, the lower cover 12 of the above-mentioned housing 1 can be used as the upper side plate 20a, which can not only reduce the processes and materials for separately designing and manufacturing the upper side plate 20a, making the structure of the air conditioner indoor unit more compact and concise. At the same time, it is also convenient for positioning and installation, reducing the adjustment and alignment work during the assembly process, lowering the assembly difficulty, and thus effectively improving the assembly accuracy and efficiency.

[0141] The above is the explanation of the manifold 10 proposed in the embodiments of the present application. Since the fan coil unit 100 and the air conditioner indoor unit proposed in the embodiments of the present application both adopt all the technical solutions of the above-mentioned all embodiments, they at least have all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, and will not be elaborated here one by one.

[0142] In the drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the present application, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and cannot be understood as a limitation of the present application. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0143] The above is only the preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A manifold, characterized in that, Applied to an air conditioner indoor unit, the air conditioner indoor unit includes a heat exchanger, the heat exchanger includes heat exchange tubes, and the flow distributor includes: A housing having independent liquid inlet and outlet cavities. The liquid inlet cavity is used to distribute liquid to a plurality of the heat exchange tubes, and the liquid outlet cavity is used to collect the liquid from a plurality of the heat exchange tubes. The housing includes a plastic part; and A reinforcing member embedded in the plastic part.

2. The manifold as claimed in claim 1, wherein, It further includes: A water inlet joint provided on the housing and communicating with the liquid inlet cavity; A water outlet joint provided on the housing and communicating with the liquid outlet cavity.

3. The manifold as claimed in claim 2, wherein, The housing further includes: An upper cover, both the water inlet joint and the water outlet joint are provided on the upper cover; A lower cover connected to the upper cover; and A partition member provided on the upper cover or the lower cover and cooperating with the upper cover and the lower cover to define the liquid inlet cavity and the liquid outlet cavity; Wherein, at least one of the upper cover and the lower cover includes the plastic part.

4. The manifold as claimed in claim 3, wherein, The upper cover includes a plastic part, and an upper embedding groove is provided on the side of the upper cover facing away from the lower cover. The reinforcing member is embedded inside the upper embedding groove; Wherein, both the water inlet joint and the water outlet joint are fixedly connected to the reinforcing member.

5. The manifold as claimed in claim 4, wherein The upper cover further includes: An outer sealing layer provided on the side of the reinforcing member facing away from the lower cover and abutting and fitting the reinforcing member.

6. The manifold as claimed in claim 5, wherein It further includes: An exhaust valve fixedly connected to the reinforcing member and communicating with the liquid inlet cavity and / or the liquid outlet cavity.

7. The manifold as claimed in claim 6, wherein An exhaust passage is provided inside the exhaust valve, and the exhaust passage is used to discharge the gas inside the housing; One of the outer sealing layer and the reinforcing member protrudes along the central axis of the exhaust passage and towards the side away from the reinforcing member to form a third protrusion, and the third protrusion surrounds the periphery of the exhaust valve.

8. The diverging flow divider according to any one of claims 3 to 7, characterized in that A water inlet interface is provided on the water inlet joint, and a water inlet through hole is provided on the upper cover. The inner wall of the interface of the water inlet interface is flush with the inner hole wall of the water inlet through hole on the inner side of the housing; A water outlet interface is provided on the water outlet joint, and a water outlet through hole is provided on the upper cover. The inner wall of the interface of the water outlet interface is flush with the inner hole wall of the water outlet through hole on the inner side of the housing.

9. The diverging flow collector according to any one of claims 3 to 7, characterized in that A lower embedding groove is provided on the side of the lower cover facing away from the lower cover. The reinforcing member is embedded inside the lower embedding groove.

10. The manifold as claimed in claim 9, wherein, The lower cover further includes: A bottom sealing layer provided on the side of the reinforcing member facing away from the upper cover and abutting and fitting the reinforcing member.

11. A fan coil unit, characterized in that, It includes: The flow distributor according to any one of claims 1 to 10; A heat exchanger having a plurality of heat exchange tubes inside, and a plurality of the heat exchange tubes are all inserted into the housing.

12. The fan coil unit according to claim 11, wherein the heat exchanger further includes: A lower side plate provided on the side of the heat exchanger facing away from the flow distributor and used for being fixedly installed on the casing of the air conditioner indoor unit.

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

14. The air conditioner indoor unit according to claim 13, characterized in that, It further includes: A water receiving tray provided at the bottom of the heat exchanger, and extending out of the casing on the side close to the flow distributor, so that the upward projection of the water receiving tray can cover the flow distributor.

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