Duct type air conditioner

Abstract

The utility model discloses a duct type air conditioner which comprises a shell, an air inlet, a fan and an air outlet, and the shell is provided with an air inlet and an air outlet; the heat exchanger is configured to perform heat exchange on airflow flowing through the heat exchanger to form heat exchange airflow; the fan is configured to introduce airflow through the air inlet and send the airflow out of the air outlet after the airflow passes through the heat exchanger; two tube plates are arranged at the ends of the heat exchanger, the two tube plates located at the same end are arranged in a relatively inclined mode, and a heat exchange tube is arranged between the two tube plates oppositely arranged at the two ends of the heat exchanger. In addition, end plates are arranged at the two ends of the heat exchanger respectively, inserting parts are arranged on the tube plates, inserting matching parts are arranged on the end plates, and the inserting parts are inserted into the inserting matching parts. The waterproof performance of the electric control box is improved, so that the use reliability of the duct type air conditioner is improved. The assembling efficiency of the heat exchanger is improved, so that the overall assembling efficiency of the duct type air conditioner is improved.

Description

Technical Field

[0001] This application relates to the technical field of air conditioning, and particularly to an air duct machine. Background Art

[0002] Air conditioners are commonly used household appliances in people's daily lives. Air conditioners are divided into wall-mounted air conditioners and cabinet air conditioners. Among them, an air conditioner usually includes an indoor unit and an outdoor unit. The indoor unit is installed on the indoor side, while the outdoor unit is installed on the outdoor side. The air duct machine belongs to a type of central air conditioner. Generally, it is connected to the indoor unit and the outdoor unit, draws out an air supply duct from the indoor to each room, and then returns it to the outdoor unit through a return air duct, and then after cooling and mixing with fresh air, the fresh air is sent out again.

[0003] Chinese Patent Publication No. CN220506973U discloses an air duct machine, which is configured with components such as a housing, a heat exchanger, a heat exchange fan, and an electrical box. Among them, the heat exchanger is an important component of the air duct machine, and the heat exchanger is used for heat exchange processing of the air flowing through. In order to increase the heat exchange area of the heat exchanger, the heat exchanger usually adopts a V-shaped structure. For this reason, the heat exchanger includes a plurality of heat exchange tubes and tube sheets, and the heat exchange tubes are installed between the tube sheets arranged oppositely at both ends, and the two tube sheets on the same side are arranged relatively obliquely to form a heat exchanger with a V-shaped structure.

[0004] However, during the assembly process of the heat exchanger, it is necessary to connect and assemble two tube sheets. Usually, the two tube sheets at the ends are connected together by screws, and then the heat exchange tubes are inserted through the corresponding tube sheets. And the screws connect and fix the tube sheets, and it is necessary to adjust the inclination angles of the two tube sheets, resulting in difficult operation and reduced assembly efficiency. In view of this, how to design a technology to improve the assembly efficiency of the heat exchanger to improve the overall assembly efficiency of the air duct machine is the technical problem to be solved by this application. Summary of the Invention

[0005] In view of the problems pointed out in the background art, this application proposes an air duct machine to achieve improving the assembly efficiency of the heat exchanger to improve the overall assembly efficiency of the air duct machine.

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

[0007] In some embodiments of this application, there is provided an air duct machine, including:

[0008] A housing, on which an air inlet and an air outlet are provided;

[0009] A heat exchanger, which is configured to perform heat exchange on the airflow flowing through to form a heat exchange airflow;

[0010] A fan, which is configured to introduce the airflow through the air inlet and send it out through the air outlet after passing through the heat exchanger;

[0011] Among them, two tube sheets are arranged at the end of the heat exchanger. The two tube sheets located at the same end are arranged obliquely relative to each other. Heat exchange tubes are arranged between the two tube sheets arranged oppositely at the two ends of the heat exchanger.

[0012] In addition, end plates are respectively arranged at the two ends of the heat exchanger. Insertion parts are arranged on the tube sheets, and insertion mating parts are arranged on the end plates. The insertion parts are inserted into the insertion mating parts.

[0013] In an embodiment of the present application, a plurality of the insertion parts are arranged on the tube sheet adjacent to the edge of the end plate. A plurality of the insertion mating parts are respectively arranged on both sides of the end plate. The insertion parts are inserted into the corresponding insertion mating parts.

[0014] In an embodiment of the present application, the insertion part is a first insertion tongue formed on the tube sheet, and the insertion mating part is a first insertion hole formed on the end plate. The first insertion tongue is inserted into the first insertion hole;

[0015] Or, the insertion part is a second insertion hole formed on the tube sheet, and the insertion mating part is a second insertion tongue formed on the end plate. The second insertion tongue is inserted into the second insertion hole.

[0016] In an embodiment of the present application, the heat exchanger is further provided with a connecting component, and the connecting component is arranged between the two end plates;

[0017] The two tube sheets located at the same end are connected to the corresponding ends of the connecting component.

[0018] In an embodiment of the present application, extension connecting parts are respectively arranged on both sides of the end of the connecting component. The extension connecting parts extend towards the direction of the corresponding tube sheet, and the extension connecting parts are connected to the corresponding tube sheet.

[0019] In an embodiment of the present application, it further includes a water receiving tray. The water receiving tray forms a first water receiving part and a second water receiving part. A ventilation opening is arranged on the first water receiving part. The first water receiving part is arranged in the housing and arranged between the inner walls of the housing. The first water receiving part divides the interior of the housing into an air inlet cavity and an air outlet cavity. The second water receiving part extends along the inner wall of the housing;

[0020] Among them, the heat exchanger covers the ventilation opening.

[0021] In an embodiment of the present application, a structural strengthening part is further arranged on the second water receiving part. The structural strengthening part extends towards the direction away from the first water receiving part. A detachable auxiliary fixing part is further arranged on the structural strengthening part;

[0022] The heat exchanger is further provided with a connecting component, which is arranged between the two end plates. The two tube plates at the same end are connected to the corresponding ends of the connecting component, and the end of the connecting component is further provided with a folding connecting part;

[0023] The auxiliary fixing member extends towards the connecting component, and the folding connecting part is connected to the free end of the auxiliary fixing member.

[0024] In one embodiment of the present application, it further includes a hoisting assembly, which includes a supporting component and a bearing component. The bearing component is provided with a limiting part. The supporting component is arranged in the housing, the bearing component is arranged on the supporting component, and the bearing component and the supporting component are arranged in a staggered manner;

[0025] Wherein, the connecting component is further provided with a hanging part, which is hung on the bearing component, and the hanging part is connected with the limiting part in a matching manner to limit the heat exchanger.

[0026] In one embodiment of the present application, an installation support frame is further arranged in the housing. An installation support surface is formed on the installation support frame, and a ventilation connection port is further arranged on the installation support surface;

[0027] The air duct machine further includes an electric control component, which includes an electric control box, a circuit board and a heat dissipation component. The electric control box is provided with a heat dissipation port. The circuit board is arranged in the electric control box, the heat dissipation component is arranged in the heat dissipation port, and the heat dissipation component is thermally conductively connected to the circuit board;

[0028] The electric control box is arranged on the installation support surface, and the fan is arranged on the installation support surface and connected to the ventilation connection port;

[0029] A heat dissipation air duct is formed between the electric control box and the volute of the fan, and the heat dissipation component is located in the heat dissipation air duct and adjacent to the volute of the fan.

[0030] Another embodiment of the present application further provides an air duct machine, including:

[0031] A housing, which is provided with an air inlet and an air outlet;

[0032] A heat exchanger, which is configured to exchange heat with the flowing air to form a heat exchange air flow;

[0033] A fan, which is configured to introduce the air flow through the air inlet and send it out through the air outlet after passing through the heat exchanger;

[0034] Among them, two tube sheets are provided at the end of the heat exchanger. The two tube sheets located at the same end are arranged obliquely relative to each other, and heat exchange tubes are arranged between the two tube sheets arranged oppositely at both ends of the heat exchanger;

[0035] In addition, end plates are respectively provided at both ends of the heat exchanger. The end plates are located between the two tube sheets, and the end plates are configured to be detachably pre-assembled with the tube sheets.

[0036] Compared with the prior art, the advantages and positive effects of this application are: by pre-assembling the two tube sheets of the heat exchanger with the corresponding end plates, in this way, during the actual assembly process, the corresponding tube sheets can be pre-assembled and positioned through the end plates. After the insertion part and the insertion mating part are connected together, the tube sheets can be positioned and installed through the end plates, automatically adjusting and positioning the inclination angles of the two tube sheets. At the same time, the relevant mounting holes on the tube sheets can be aligned correspondingly, so as to facilitate the operator to quickly tighten the screws, improve the assembly efficiency of the heat exchanger, and improve the overall assembly efficiency of the air duct machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic structural diagram of an embodiment of the air duct machine of this application;

[0038] Figure 2 It is Figure 1 a partial structural diagram of the air duct machine in;

[0039] Figure 3 It is Figure 2 one of the structural diagrams of the heat exchange component in;

[0040] Figure 4 It is Figure 2 the other structural diagram of the heat exchange component in;

[0041] Figure 5 It is Figure 3 a partial structural diagram of the heat exchanger in;

[0042] Figure 6 It is Figure 3 the structural diagram of the water receiving tray in;

[0043] Figure 7 It is a schematic structural diagram of another embodiment of the air duct machine of this application;

[0044] Figure 8 It is Figure 1 the structural diagram of the hoisting component in the air duct machine;

[0045] Figure 9 It is Figure 8 the structural diagram of the bearing component in;

[0046] Figure 10For Figure 2 Assembly drawing of the medium fan and the electric control component;

[0047] Figure 11 For Figure 10 Assembly drawing of the installation support frame and the electric control component in the medium. Specific implementation manners

[0048] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0049] In the present application, an air conditioner performs a refrigeration cycle by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation to cool or heat an indoor space.

[0050] The low-temperature and low-pressure refrigerant enters the compressor, and the compressor compresses it into a refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

[0051] The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state formed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a refrigeration effect by using the latent heat of evaporation of the refrigerant to exchange heat with the material to be cooled. During the entire cycle, the air conditioner can adjust the temperature of the indoor space.

[0052] The outdoor unit of the air conditioner refers to the part of the refrigeration cycle including the compressor and the outdoor heat exchanger. The indoor unit of the air conditioner includes an indoor heat exchanger, and the expansion valve can be provided in the indoor unit or the outdoor unit.

[0053] The indoor heat exchanger and the outdoor heat exchanger are used as condensers or evaporators. When the indoor heat exchanger is used as a condenser, the air conditioner serves as a heater in the heating mode. When the indoor heat exchanger is used as an evaporator, the air conditioner serves as a cooler in the cooling mode.

[0054] As Figure 1 - Figure 2 shown, in an embodiment of the present application, an air duct machine is provided, which includes components such as a housing 1, a heat exchange component 2, a fan 3, and an electric control component 4.

[0055] The housing 1 serves as an external support and protection body for installing related components. To meet the requirements of air flow heat exchange, an air inlet 11 and an air outlet 12 are provided on the housing 1.

[0056] The heat exchange assembly 2 is used to perform heat exchange on the air flow flowing into the housing 1 to achieve heating and / or cooling of the air flow. The heat exchange assembly 2 includes a heat exchanger 21, and the heat exchanger 21 is configured to exchange heat with the flowing air flow to form a heat exchange air flow.

[0057] Since condensed water or defrost water is generated during the use of the heat exchanger 21 and needs to be collected and discharged, the heat exchange assembly 2 further includes a water receiving tray 22. The water receiving tray 22 is arranged at the bottom of the heat exchanger 21 for collecting the water left on the heat exchanger 21. The heat exchanger 21 is provided on the water receiving tray 22.

[0058] The fan 3, as an air flow driving component, drives the air flow to be introduced through the air inlet 11, pass through the heat exchanger 21, and then be sent out through the air outlet 12.

[0059] The electric control assembly 4 is mainly used to realize the electrical connection with an external power supply, and can also control the operation of the internal electrical components of the air duct machine.

[0060] The heat exchange assembly 2, the fan 3 and the electric control box 41 are arranged in the housing 1. Along the air flow direction inside the housing 1, the heat exchange assembly 2 and the electric control box 41 are arranged in sequence.

[0061] In an embodiment of the present application, as Figure 1 - Figure 6 shown, the heat exchanger 21 includes two heat exchange components, namely a first heat exchange component 212 and a second heat exchange component 213. The first heat exchange component 212 and the second heat exchange component 213 are arranged relatively obliquely, and the first heat exchange component 212 and the second heat exchange component 213 form an overall V-shaped structure. The first heat exchange component 212 and the second heat exchange component 213 are configured with refrigerant pipes and heat dissipation fins to meet the requirements of ventilation and heat dissipation.

[0062] The heat exchanger further includes end plates 214. The end plates 214 are arranged on the corresponding side parts of the first heat exchange component 212 and the second heat exchange component 213 to block the two side parts of the first heat exchange component 212 and the second heat exchange component 213 through the end plates 214, and the end plates 214 are used to prevent the air flow from leaking from the two side parts of the two heat exchange components.

[0063] In one embodiment, two tube plates 210 are provided at the end of the heat exchanger. The two tube plates 210 located at the same end are arranged relatively obliquely, and a heat exchange tube (not marked) is provided between the two tube plates 210 arranged relatively at the two ends of the heat exchanger;

[0064] In addition, end plates 214 are respectively disposed at both ends of the heat exchanger. The end plates 214 are located between the two tube sheets 210, and the end plates 214 are configured to be detachably pre-assembled with the tube sheets 210.

[0065] An insertion part 2101 is provided on the tube sheet 210, and an insertion mating part 2141 is provided on the end plate 214. The insertion part 2101 is inserted into the insertion mating part 2141.

[0066] Specifically, during the actual assembly process of the heat exchanger, it is necessary to position the two tube sheets 210 so that the two tube sheets 210 are arranged in an inclined state. The insertion part 2101 provided on the tube sheet 210 is inserted into the insertion mating part 2141 provided on the end plate 214, so as to pre-assemble and position the tube sheets 210 on both sides through the end plate 214. In this way, on the one hand, the tube sheets 210 on both sides of the end plate 214 can maintain a relatively inclined state, and on the other hand, the end plate 214 positions the positions of the tube sheets 210 on both sides, so that the relevant mounting holes on the tube sheets 210 can reach the accurate mounting positions, thereby facilitating the operator to assemble and fix.

[0067] In one embodiment, the insertion part 2101 is a first insertion tongue formed on the tube sheet 210, and the insertion mating part 2141 is a first insertion hole formed on the end plate 214. The first insertion tongue is inserted into the first insertion hole; or, the insertion part 2101 is a second insertion hole formed on the tube sheet 210, and the insertion mating part 2141 is a second insertion tongue formed on the end plate 214. The second insertion tongue is inserted into the second insertion hole.

[0068] Specifically, by adopting the method of inserting the hole and the insertion tongue, the tube sheet 210 can be conveniently pre-assembled onto the end plate 214.

[0069] Similarly, for the tube sheet 210, a clamping part can also be provided on the tube sheet 210. Correspondingly, a clamping mating part is provided on the end plate 214, and the clamping part is inserted into the clamping mating part.

[0070] Specifically, for the tube sheet 210, the tube sheet 210 is clamped onto the set clamping mating part on the end plate 214 through the clamping part, so as to realize pre-assembling the tube sheet 210 onto the end plate 214. Among them, the physical entities of the clamping part and the clamping mating part can adopt the methods of clamping tongue cooperating with clamping groove or clamping hole, etc., which will not be elaborated here.

[0071] By pre-assembling the two tube sheets 210 of the heat exchanger with the corresponding end plates 214 together, in this way, during the actual assembly process, the corresponding tube sheets 210 can be pre-assembled and positioned through the end plates 214. After the insertion parts 2101 and the insertion mating parts 2141 are connected together, the tube sheets 210 can be positioned and installed through the end plates 214, automatically adjusting and positioning the inclination angles of the two tube sheets 210. At the same time, the relevant mounting holes on the tube sheets 210 can be correspondingly aligned to facilitate the operator to quickly tighten the screws, improving the assembly efficiency of the heat exchanger and thus the overall assembly efficiency of the air duct machine.

[0072] In some embodiments, a plurality of the insertion parts 2101 are arranged on the tube sheet 210 adjacent to the edge of the end plate 214, and a plurality of the insertion mating parts 2141 are respectively arranged on both sides of the end plate 214, and the insertion parts 2101 are inserted on the corresponding insertion mating parts 2141.

[0073] Specifically, in order to improve the connection reliability between the tube sheet 210 and the end plate 214 to utilize the end plate 214 to achieve a better pre-assembly positioning effect on the tube sheet 210, a plurality of insertion parts 2101 and insertion mating parts 2141 are used in a cooperative manner to insert the tube sheet 210 and the end plate 214 together.

[0074] Similarly, for the clamping method, a plurality of clamping parts and clamping mating parts are used in a cooperative manner to clamp the tube sheet 210 and the end plate 214 together.

[0075] In an embodiment, the heat exchanger is further provided with a connecting member 215, and the connecting member 215 is arranged between the two end plates 214;

[0076] The two tube sheets 210 at the same end are connected to the corresponding end of the connecting member.

[0077] Specifically, the adjacent end parts of the first heat exchange part 212 and the second heat exchange part 213 are respectively arranged on the connecting member 215, and an air inlet area is formed between the mutually remote end parts of the first heat exchange part 212 and the second heat exchange part 213. The connecting member 215 can fixedly connect the first heat exchange part 212 and the second heat exchange part 213, and the connecting member 215 can also cover the end parts of the first heat exchange part 212 and the second heat exchange part 213 to block the leakage of air flow between the end parts of the first heat exchange part 212 and the second heat exchange part 213.

[0078] In another embodiment, extension connecting parts 2151 are respectively arranged on both sides of the end part of the connecting member 215, the extension connecting parts 2151 extend towards the direction of the corresponding tube sheet 210, and the extension connecting parts 2151 are connected to the corresponding tube sheet 210.

[0079] Specifically, in order to improve the connection reliability between the connecting component 215 and the first heat exchange component 212 and the second heat exchange component 213, an extended connecting portion 2151 is provided on the connecting component. The extended connecting portion 2151 can extend to the corresponding tube sheet 210 so that the extended connecting portion 2151 is fixedly connected to the tube sheet 210. For example, the extended connecting portion 2151 can be connected to the tube sheet 210 by screws, thereby fixedly connecting the first heat exchange component 212 and the second heat exchange component 213 to the connecting component 215.

[0080] In another embodiment of the present application, in order to meet the requirement of detecting whether there is refrigerant leakage in the heat exchanger, a refrigerant detection sensor 23 can be provided on the heat exchanger. The refrigerant detection sensor 23 can timely detect the refrigerant leakage when the heat exchanger has refrigerant leakage to perform corresponding processing such as shutdown alarm.

[0081] In a certain embodiment, in order to facilitate the operator to conveniently assemble the refrigerant detection sensor 23, an installation support portion 216 can also be provided on the heat exchanger. The installation support portion 216 is arranged on the windward side of the heat exchanger and is arranged opposite to the air inlet. The refrigerant detection sensor 23 is also provided on the installation support portion 216.

[0082] Specifically, the installation support portion 216 is arranged on the windward side of the heat exchanger, and the windward side of the heat exchanger faces the air inlet. In this way, the installation support portion 216 can be exposed at the air inlet. During the actual assembly process, the operator can put the refrigerant detection sensor 23 into the housing through the air inlet of the housing and fixedly install it on the installation support portion 216. In this way, the problem of difficult installation when installing the refrigerant detection sensor 23 between the side wall of the heat exchanger and the housing can be solved.

[0083] In some embodiments, the installation support portion 216 is located between two relatively arranged tube sheets 210.

[0084] Specifically, the installation support portion 216 is located between the relatively arranged tube sheets 210 at both ends of the heat exchanger so that the installation support portion 216 can be arranged on the windward side of the heat exchanger.

[0085] By providing an installation support portion 216 on the heat exchanger, and arranging the installation support portion 216 inside the end of the heat exchanger, the space occupied by the heat exchanger can be fully utilized to place the installation support portion 216. When installing the refrigerant detection sensor 23, the refrigerant detection sensor 23 can be put into the housing through the air inlet and the refrigerant detection sensor 23 is fixedly installed on the installation support portion 216. Since the space between the heat exchanger and the air inlet is large and it is convenient for the operator to reach in with a hand for operation, the assembly difficulty is reduced, so as to improve the overall assembly efficiency of the air duct machine.

[0086] In another embodiment, in order to facilitate the installation of the refrigerant detection sensor 23, the refrigerant detection sensor 23 is provided with an installation fixing frame 2161, and the installation fixing frame 2161 is detachably installed on the installation support portion 216.

[0087] Specifically, in the actual assembly process, for the refrigerant detection sensor 23, it can be first assembled to the installation fixing frame 2161 outside the housing. Corresponding installation structures can be provided on the installation fixing frame 2161 to meet the fixed installation requirements of the refrigerant detection sensor 23. For example, the refrigerant detection sensor 23 can be assembled to the installation fixing frame 2161 by means such as snap-fitting or screw fixation.

[0088] Then, the refrigerant detection sensor 23 assembled to the installation fixing frame 2161 is put into the housing through the air inlet of the housing, and the installation fixing frame 2161 is connected to the installation support portion 216 to realize the fixed assembly of the refrigerant detection sensor 23 to the installation support portion 216.

[0089] In some embodiments, slots are provided on both sides of the installation support portion 216, and the installation fixing frame 2161 is inserted into the slots; the installation fixing frame 2161 is also connected to the installation support portion 216 by screws.

[0090] Specifically, in order to facilitate the quick pre-assembly of the installation fixing frame 2161 to the installation support portion 216, slots can be provided on both sides of the installation support portion 216, and the installation fixing frame 2161 will slide into and be inserted into the installation support portion 216 through the slots on both sides.

[0091] There are various forms of the assembly method of the installation fixing frame 2161 and the installation support portion 216. For example: Then, the installation support portion 216 and the installation fixing frame 2161 are further firmly connected together by screws.

[0092] Alternatively, the mounting and fixing bracket 2161 is snap-fitted onto the mounting and supporting part 216. Specifically, a first clamping hole is provided on the mounting and supporting part 216, and a first clamping claw is provided on the mounting and fixing bracket 2161, and the first clamping claw is clamped in the first clamping hole; or, a second clamping claw is provided on the mounting and supporting part 216, and a second clamping hole is provided on the mounting and fixing bracket 2161, and the second clamping claw is clamped in the second clamping hole.

[0093] In another embodiment of the present application, for the water receiving tray, the water receiving tray forms a first water receiving part 221 and a second water receiving part 222. A ventilation opening 223 is provided on the first water receiving part 221. The first water receiving part 221 is disposed in the housing and arranged between the inner walls of the housing. The first water receiving part 221 divides the interior of the housing into an air inlet cavity and an air outlet cavity, and the second water receiving part 222 extends along the inner wall of the housing;

[0094] Wherein, the heat exchanger covers the ventilation opening 223.

[0095] Specifically, the water receiving tray forms a first water receiving part 221 and a second water receiving part 222. Through the first water receiving part 221 and the second water receiving part 222, the requirement for collecting the condensed water of the heat exchanger can be met in the case of the housing being installed vertically or horizontally.

[0096] The water receiving tray is located in the housing and divides the interior of the housing into an air inlet cavity and an air outlet cavity. The ventilation opening 223 on the first water receiving part 221 communicates the air inlet cavity and the air outlet cavity, and the air in the air inlet cavity enters the air outlet cavity after being heated by the heat exchanger.

[0097] In a certain embodiment, a first structural reinforcement 224 is further provided on the second water receiving part 222. The first structural reinforcement 224 extends in a direction away from the first water receiving part 221, and a detachable auxiliary fixing member 225 is further provided on the first structural reinforcement 224.

[0098] Specifically, the first structural reinforcement 224 can be processed from a sheet metal part, while the water receiving tray is made of a plastic part. On the one hand, the first structural reinforcement 224 can extend the water receiving area of the second water receiving part 222 to better meet the requirement of collecting the condensed water of the heat exchanger.

[0099] At the same time, since the heat exchanger 21 needs to be assembled onto the water receiving tray 22, for this reason, the auxiliary fixing member 225 arranged on the first structural reinforcement 224 can be connected to the connecting member 214 arranged on the heat exchanger 21, so that the heat exchanger 21 can be firmly installed on the water receiving tray 22.

[0100] In one embodiment, a folding connection portion 2152 is further provided at the end of the connection member; the auxiliary fixing member 225 extends towards the connection member, and the folding connection portion 2152 is connected to the free end of the auxiliary fixing member 225.

[0101] Specifically, the connection member also adopts a sheet metal part. The folding connection portion 2152 configured on the connection member can be fixedly connected to the auxiliary fixing member 225 by screws, so that the heat exchanger 21 is assembled and fixed on the first structural reinforcement 224 of the water receiving tray 22 through the connection member 214.

[0102] In one embodiment, first connection support portions 226 are respectively provided at both ends of the ventilation opening 223, and the end of the heat exchanger is arranged on the corresponding first connection support portion 226.

[0103] Specifically, the first connection support portion 226 can support the end of the heat exchanger 21, so that the heat exchanger can be firmly installed on the first water receiving portion 221 of the water receiving tray.

[0104] Wherein, the first connection support portion 226 is a lapping plate or a support seat. The end of the heat exchanger is lapped on the lapping plate, and the end of the heat exchanger abuts against the support seat.

[0105] In another embodiment, in order to effectively cover the ventilation opening 223 through the heat exchanger 21, a second connection support portion 227 is further provided on the ventilation opening 223, and the second connection support portion 227 is connected to the corresponding end plate 214.

[0106] Specifically, both ends of the heat exchanger 21 are respectively connected to the first connection support portion 226, and a sealing strip can be added at the connection part. Similarly, the end plates 214 on both sides of the heat exchanger 21 are connected to the second connection support portions 227 on both sides of the ventilation opening 223. On the one hand, it enables good connection and fixation between the periphery of the heat exchanger and the periphery of the ventilation opening 223, and on the other hand, the ventilation opening 223 can be completely covered by the heat exchanger.

[0107] In one embodiment, the end plate 214 abuts against the outside of the second connection support portion 227, and the end plate 214 is fixedly connected to the second connection support portion 227 by screws.

[0108] In another embodiment, a positioning notch 2142 is provided at the edge of the end plate 214, and a positioning protrusion 228 is provided on the second connection support portion 227, and the positioning protrusion 228 is located in the positioning notch 2142.

[0109] Specifically, after the heat exchanger 21 is assembled onto the water receiving tray 22, the positioning notch 2142 cooperates with the positioning protrusion 228 to play a role in positioning and installation, so that the heat exchanger 21 can be accurately and reliably installed on the water receiving tray 22.

[0110] In a certain embodiment, an annular protrusion structure is provided on the outer periphery of the ventilation opening 223, and the first connection and support portion 226 and the second connection and support portion 227 are formed on the annular protrusion structure.

[0111] In one embodiment, as Figure 2 shown, the heat exchanger 21 can be arranged in the air outlet cavity.

[0112] In another embodiment, as Figure 7 shown, for the heat exchanger arranged in the air inlet cavity, in this case, since the air entering the air outlet cavity exchanges heat with the heat exchanger 21 first and then enters the air outlet cavity through the ventilation opening 223, it is easy to cause air leakage due to the gap formed between the heat exchange component 2 and the housing 1, resulting in condensation at the air leakage point.

[0113] Therefore, the following structural improvement design is carried out on the housing 1.

[0114] Wherein, the heat exchange component is located in the housing, and a gap is formed between the water receiving tray and the inner wall of the housing; a shielding portion 18 is provided in the housing, the shielding portion 18 is located in the air outlet cavity, the shielding portion 18 extends from the inner wall of the housing towards the interior of the housing, the shielding portion 18 shields the gap, and a sealing component (not shown) is further provided between the shielding portion 18 and the heat exchange component, and the sealing component seals the gap.

[0115] Specifically, for the case where the heat exchanger 22 is located in the air outlet cavity, after the heat exchange component 2 is integrally installed into the housing 1, a gap will be formed between the heat exchange component 2 and the inner wall of the housing 1. After the fan is started, the air heat-exchanged by the heat exchanger 21 enters the air outlet cavity through the ventilation opening 223, and part of the air will also flow through the gap due to the existence of the gap. The shielding portion 18 can shield the gap and block the gap through the sealing component, thereby solving the problem of air leakage at the gap.

[0116] Wherein, the sealing component can be a commonly used sealing material in air conditioners such as sealing rubber cotton.

[0117] In one embodiment, a first installation interval is formed between the end of the heat exchanger and the inner wall of the housing; the shielding portion 18 includes a first shielding sub-portion 181, the first shielding sub-portion 181 is located in the air outlet cavity, the first shielding sub-portion 181 covers the front side of the first installation interval, and a sealing component is provided between the first shielding sub-portion 181 and the heat exchange component.

[0118] Specifically, during actual use, it is not the case that there is air leakage around the entire heat exchange component 2. Air leakage is likely to occur at the ends of the heat exchanger. Therefore, the first shielding sub - part 181 is arranged on the front side of the first installation interval to shield the gap formed between the heat exchange component 2 and the housing 1 at this position.

[0119] By providing a shielding part 18 inside the housing, the shielding part 18 is located in the air outlet cavity and on the inner side of the heat exchanger. The shielding part 18 presses the sealing component against the heat exchange component, and then the gap formed between the heat exchange component and the inner wall of the housing can be sealed through the sealing component. During actual use, after the fan is started, when air enters the housing through the air inlet, the sealing component can prevent the air from bypassing the heat exchanger and entering the air outlet cavity through the gap between the heat exchange component and the housing. On the one hand, the occurrence of air leakage can be reduced, and on the other hand, the damage of electrical components caused by condensation due to air leakage can be reduced, so as to improve the reliability of the air duct machine in use.

[0120] In one embodiment, a second installation interval is formed between the edge of the heat exchanger near the first connection support part 226 and the inner wall of the housing;

[0121] A second shielding sub - part 182 is provided in the housing. The second shielding sub - part 182 is located in the air outlet cavity, and the second shielding sub - part 182 covers the front side of the second installation interval.

[0122] Specifically, in order to comprehensively shield the gaps around the heat exchange component 2 and the housing 1, the shielding part 18 further includes a second shielding sub - part 182. The second shielding sub - part 182 can shield both sides of the water receiving tray 22. The first shielding sub - part 181 and the second shielding sub - part 182 are distributed on the inner walls around the housing 1 to shield and protect the gaps between the four sides of the water receiving tray 22 and the inner wall of the housing 1.

[0123] In some embodiments of the present application, as Figure 2 , Figure 8 and Figure 9 shown, in order to improve the installation reliability of the heat exchange component, the air duct machine further includes a hoisting component 5. The hoisting component 5 is provided in the housing and is located between the fan and the heat exchange component; the hoisting component 5 is configured to hang and install the heat exchanger 21.

[0124] Specifically, a hanging part 211 is further provided on the heat exchanger. The hanging part 211 is configured to be hung on the hoisting component 5 when the housing is in an upright installation state.

[0125] After the hoisting assembly 5 is installed in the housing, when installing the heat exchanger, the heat exchanger is hung on the hoisting assembly 5 through the hanging part 211, so as to realize the suspension and installation of the heat exchanger through the hoisting assembly 5, and the weight of the heat exchanger is borne by the hoisting assembly 5, thereby reducing the damage of the water receiving tray 22 caused by the impact of the heat exchanger 21 during falling.

[0126] In some embodiments, the hanging part 211 is provided on the connecting component 215. The hanging part 211 is used to meet the requirements of the hanging installation of the heat exchanger. At the same time, the connecting component 215 can effectively connect and fix the first heat exchange component 212 and the second heat exchange component 213, so as to ensure that after the hanging installation, the first heat exchange component 212 and the second heat exchange component 213 can be stably connected to the connecting component 215.

[0127] In one embodiment, the hoisting assembly 5 includes a support component 51 and a bearing component 52. A limiting part 521 is provided on the bearing component 52. The support component 51 is arranged in the housing, the bearing component 52 is arranged on the support component 51, and the bearing component 52 and the support component 51 are arranged in a staggered manner.

[0128] Specifically, the hoisting assembly 5 is fixedly arranged in the housing through the support component 51, and the bearing component 52 is supported and installed through the support component 51. The hanging part 211 is also provided on the heat exchanger. The hanging part 211 is hung on the bearing component 52, and the hanging part 211 is connected with the limiting part 521 in a matching manner to limit the heat exchanger.

[0129] On the one hand, the hanging part 211 is hung on the bearing component 52 to realize the suspension and installation of the heat exchanger through the bearing component 52; on the other hand, the hanging part 211 is limited by the limiting part 521 provided on the bearing component 52, so as to realize the precise limitation of the installation position of the heat exchanger through the limiting part 521 when the heat exchanger is hung on the bearing component 52 through the hanging part 211.

[0130] In some embodiments, since the support component 51 needs to meet the requirements of being firmly installed in the housing and providing effective support, for this reason, the hoisting assembly 5 further includes a second structural reinforcement 53. The second structural reinforcement 53 is arranged on the support component 51, and the second structural reinforcement 53 extends along the length direction of the support component 51.

[0131] Specifically, usually, the support component 51 and the bearing component 52 in the hoisting assembly 5 are formed by bending sheet metal. For the support component 51, in order to improve its overall structural strength to improve the support capacity, a second structural reinforcement 53 is additionally configured. The second structural reinforcement 53 extends along the length direction of the support component 51 and is fixed on the support component 51 to improve the overall structural strength of the support component 51.

[0132] In one embodiment, an insertion part 2101 is provided at one end of the support member 51, and a fixing part is provided at the other end of the support member 51;

[0133] An insertion fitting part 2141 is provided in the housing, and a fixing fitting part is also provided in the housing;

[0134] The insertion part 2101 is inserted into the insertion fitting part 2141, and a screw fixes the fixing part and the fixed connection part together.

[0135] Specifically, in order to facilitate the on-site rapid assembly of the support member 51, an insertion part 2101 is provided at one end of the support member 51. During installation, the insertion part 2101 is inserted into the insertion fitting part 2141 in the housing to achieve pre-assembly. Then, the fixing part and the fixed connection part are fixed together by screws, thereby completing the fixed connection of the support member 51 in the housing.

[0136] In a certain embodiment, the representation entities of the fixing part and the fixed connection part can be in the form of a through hole and a threaded hole, that is, the screw passes through the through hole and is threadedly connected in the threaded hole.

[0137] In some embodiments, the hoisting assembly 5 includes at least two support members 51 arranged side by side, and the hoisting assembly 5 includes at least two load-bearing members 52 arranged side by side.

[0138] The outer surface of the connecting member 215 includes a first surface and a second surface, the first surface and the second surface are arranged obliquely relative to each other, two hanging parts 211 are provided on the outer surface of the connecting member 215, one hanging part 211 is provided on the first surface, and the other hanging part 211 is provided on the second surface, and the two hanging parts 211 are arranged at intervals; the hanging parts 211 are arranged to hang on the corresponding load-bearing members 52.

[0139] Specifically, in order to reliably hang and install the heat exchanger, two hanging parts 211 arranged at intervals and misaligned are provided on the outer surface of the connecting member 215, and the two hanging parts 211 can stably hang the entire heat exchanger to ensure the attitude stability of the heat exchanger during transportation and use.

[0140] In another embodiment, the housing includes a support frame 15 and a plurality of guard plates 16, the guard plates 16 are arranged on the support frame 15, and the insertion fitting part 2141 and the fixing fitting part are formed on the support frame 15;

[0141] The insertion portion 2101 includes a first insertion tongue 511 arranged on the end of the support component 51, and the first insertion tongue 511 extends along the length direction of the support component 51. The insertion fitting portion 2141 includes a first insertion hole arranged on the support frame 15, and the first insertion tongue 511 is inserted into the first insertion hole.

[0142] Specifically, the insertion part 2101 includes a first plug tongue 511. During assembly, the first plug tongue 511 will be inserted into a first plug hole correspondingly provided on the support frame 15, so that the pre-assembled support component 51 is positioned by the first plug tongue 511 cooperating with the first plug hole. During assembly, the first plug tongue 511 is plugged in, which can facilitate rapid assembly by on-site staff.

[0143] In one embodiment, in order to improve the reliability of plugging, the insertion portion 2101 further includes a second plug tongue 512, the second plug tongue 512 extends along the length direction of the support component 51, the second plug tongue 512 is arranged side by side with the first plug tongue 511, and a tilting portion 513 is further provided on the free end of the second plug tongue 512, and the tilting portion 513 extends away from the first plug tongue 511;

[0144] The plug-in fitting portion 2141 further includes a second plug hole provided on the support frame 15, the second plug tongue 512 is inserted into the second plug hole, and the tilting portion 513 is inserted into the second plug hole and is configured to restrict the second plug tongue 512 from being disengaged from the second plug hole.

[0145] Specifically, the second plug tongue 512 configured on the insertion portion 2101 cooperates with the first plug tongue 511 to be inserted into the corresponding plug hole of the support frame 15, and the tilting portion 513 provided on the second plug tongue 512 can be hooked on the edge of the second plug hole after the second plug tongue 512 is inserted into the second plug hole, so as to prevent the second plug tongue 512 from being separated from the second plug hole, thereby improving the convenience during the assembly process.

[0146] In another embodiment of the present application, Figure 2 , Figure 10 and Figure 11 As shown, in order to conveniently install the fan 3 and the electronic control component 4 to improve assembly reliability and convenience, the duct machine also includes an installation support frame 13, and the fan 3 and the electronic control component 4 are installed and fixed by the installation support frame 13.

[0147] Specifically, the fan 3 and the electronic control component 4 are respectively installed on the mounting support frame 13. The mounting support frame 13, the fan 3 and the electronic control component 4 are pre-assembled together outside the casing 1 to form a modular structure. Then, they are assembled and fixed in the casing 1 with the help of the mounting support frame 13 to realize the assembly of the fan 3 and the electronic control component 4 into the casing together.

[0148] In one embodiment, to facilitate the installation of the mounting support frame 13 into the housing 1, the mounting support frame 13 can be assembled into the housing 1 by means of plug-in mounting.

[0149] Specifically, a bearing slot 17 is provided in the housing, and the mounting support frame 13 is plugged into the bearing slot 17. In this way, during on-site assembly by an operator, the mounting support frame 13 equipped with the fan 3 and the electric control component 4 will be inserted into the bearing slot 17. On the one hand, the bearing slot 17 is used to bear and support the mounting support frame 13, and on the other hand, the bearing slot 17 can also limit and fix the mounting support frame 13.

[0150] In some embodiments, the housing includes a support frame 15 and a plurality of guard plates 16, and the guard plates 16 are detachably arranged on the support frame 15.

[0151] The bearing slots 17 are provided on two oppositely arranged guard plates 16, and the mounting support frame 13 is inserted between the two oppositely arranged bearing slots 17.

[0152] Specifically, when assembling the housing 1, a plurality of guard plates 16 are assembled and fixed on the support frame 15. For the guard plate 16 having the bearing slot 17, after being fixed on the support frame 15, the mounting support frame 13 can be first inserted between the two bearing slots 17, and then the remaining guard plates 16 are assembled.

[0153] In another embodiment, a mounting support surface 131 is formed on the mounting support frame 13, and a ventilation connection port 132 is further provided on the mounting support surface 131;

[0154] The electric control component 4 includes an electric control box 41. As the installation component of the electric control component 4, the electric control box 41 is installed in the housing 1 through the electric control box 41.

[0155] The electric control component 4 further includes a circuit board 42, and the circuit board 42 is arranged in the electric control box 41. The circuit board 42 is at least configured with one circuit board 42 according to functions to meet the requirements of power supply and control.

[0156] The mounting support frame 13 is arranged in the housing 1, the electric control box 41 is arranged on the mounting support surface 131, and the fan 3 is arranged on the mounting support surface 131 and connected to the ventilation connection port 132;

[0157] Among them, the electric control box 41 and the fan 3 are located between the mounting support frame 13 and the heat exchange component 2.

[0158] Specifically, the installation support frame 13 is fixedly arranged inside the housing 1. The installation support frame 13 will install and fix the electronic control component 4 through the installation support surface 131, and the electronic control box 41 and the installation support surface 131 cooperate to form a cavity.

[0159] The fan 3 is also installed on the installation support frame 13. In order to meet the requirement of the fan 3 to drive the air flow, a ventilation connection port 132 is arranged on the installation support surface 131, and the outlet of the fan 3 is connected to the ventilation connection port 132. After the fan 3 is started, the air flow enters the housing 1 through the air inlet 11, exchanges heat with the heat exchanger 21 in the heat exchange component 2, then enters the fan 3, and is output from the ventilation connection port 132 and conveyed to the outside of the housing 1 through the air outlet 12.

[0160] In a certain embodiment, in order to facilitate the installation of the fan 3, installation slots 133 are arranged on both sides of the ventilation connection port 132 on the installation support surface 131 of the installation support frame 13, and the volute of the fan 3 is inserted into the installation slots 133.

[0161] Specifically, the volute of the fan 3 can be inserted into the installation slots 133. On the one hand, it realizes fixed installation on the installation support frame 13, and on the other hand, it can make the volute reliably dock with the ventilation connection port 132.

[0162] In an embodiment, since both the fan 3 and the electronic control component 4 are installed on the installation support surface 131 of the installation support frame 13, the electronic control component 4 is arranged on one side of the fan 3. In order to improve the heat dissipation efficiency of the heat dissipation component 43, the heat dissipation component 43 is arranged close to the fan 3.

[0163] Specifically, during the power-on use process of the circuit board 42, the circuit board 42 will generate heat. Therefore, heat dissipation treatment needs to be carried out on the circuit board 42. A heat dissipation component 43 can be assembled on the heat dissipation port 4113. The heat dissipation component 43 can be made of materials with excellent thermal conductivity (such as aluminum, copper). The heat dissipation component 43 is inserted into the heat dissipation port 4113 and is thermally connected to the circuit board 42, and the heat dissipation component 43 is used to effectively dissipate heat from the circuit board 42.

[0164] After the fan 3 is started, the air flow after heat exchange by the heat exchanger 21 will flow towards the direction of the fan 3. During the flowing process, part of the air flow directly flows into the inlet of the fan 3, and part of the air flow will flow along the surface of the electronic control box 41 to take away the heat released by the circuit board 42 absorbed by the heat dissipation component 43, thereby improving the heat dissipation efficiency of the heat dissipation component 43.

[0165] In an embodiment, a diversion cover 14 is further arranged on the ventilation connection port 132, and the cross-sectional area of the diversion cover 14 shows an increasing trend along the air outlet direction.

[0166] Specifically, the air guide cover 14 is connected to the ventilation connection port 132 to guide the air flow output from the fan 3, and the air guide cover 14 guides the air flow to the air outlet 12 of the housing 1 to increase the air outlet coverage area of the air outlet 12.

[0167] In one embodiment, the surface of the electric control box 41 adjacent to the volute of the fan 3 is a diversion surface 410, the diversion surface 410 is arranged obliquely, and a heat dissipation air duct is formed between the diversion surface and the outer wall of the volute of the fan. Along the air flow direction of the heat dissipation air duct, the heat dissipation air duct has a tapered structure.

[0168] Specifically, in order to improve the heat dissipation efficiency of the circuit board 42 and improve the operating reliability of the circuit board 42, the surface of the electric control box 41 adjacent to the volute of the fan 3 is a diversion surface 410 to guide the air flow through the electric control box 41 through the diversion surface. A heat dissipation air duct is formed between the diversion surface 410 and the volute of the fan 3. After the fan is started, the air flow after heat exchange by the heat exchanger flows towards the fan. Part of the air flow is inhaled by the fan, and the other part of the air flow is inhaled into the fan after passing through the heat dissipation air duct. In this way, the circuit board of the electric control box can be effectively cooled through the heat dissipation air duct.

[0169] In one embodiment, a plurality of heat dissipation fins are provided on the heat dissipation component, and the heat dissipation fins are arranged along the rotation axis direction of the fan.

[0170] Specifically, since the heat dissipation fins are located in the heat dissipation air duct, the extending direction of the heat dissipation fins is the same as the air flow direction in the heat dissipation air duct. On the one hand, the air flow can flow along the heat dissipation fins during the air flow process to quickly take away the heat; on the other hand, the heat dissipation fins can guide the air flow to ensure the smooth flow of the air flow in the heat dissipation air duct.

[0171] In some embodiments of the present application, the electric control box 41 may include a box body 411, the circuit board 42 is disposed in the box body 411, and the box body 411 is disposed in the housing 1. The box body 411 forms a space for installing the circuit board 42 and is assembled into the housing 1 through the box body 411 to realize the installation and fixation of the electric control box 41.

[0172] In one embodiment, the electric control box 41 may include a box cover 412, and the box cover 412 is detachably disposed on the box body 411. The box cover 412 adopts a detachable connection method, so that when the circuit board 42 is repaired, the box cover 412 can be detached from the box body 411 to expose the circuit board 42, which is convenient for repair.

[0173] In some embodiments, for the drainage surface 410 formed on the electronic control box 41, the drainage surface 410 can be formed on the box body 411. The drainage surface 410 is formed on the box body 411 and extends obliquely from the inner wall position of the housing 1 in a direction away from the water receiving tray 22. That is, the first end of the drainage surface 410 on the box body 411 is close to the side wall of the housing 1 and the water receiving tray 22, and the second end of the drainage surface 410 on the box body 411 is far from the side wall of the housing 1 and the water receiving tray 22.

[0174] In some embodiments, a wire threading hole is further provided on the box body 411, and a wire threading rubber plug 46 is arranged in the wire threading hole. Specifically, the cable of the circuit board 42 in the electronic control box 41 extending out of the electronic control box 41 is led out through the wire threading rubber plug 46, and the wire threading rubber plug 46 can seal the part where the cable is led out to improve the waterproof performance.

[0175] In the description of the above embodiments, the specific features, structures, materials or characteristics can be combined in a suitable manner in any one or more embodiments or examples.

[0176] The above is only the specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A duct machine, characterized in that: include: A housing, wherein the housing is provided with an air inlet and an air outlet; A heat exchanger, wherein the heat exchanger is configured to exchange heat with an airflow flowing therethrough to form a heat exchange airflow; A fan, the fan being configured to introduce airflow through the air inlet and send the airflow out through the air outlet after passing through the heat exchanger; Wherein, two tube sheets are arranged at the end of the heat exchanger, and the two tube sheets located at the same end are arranged relatively tilted, and heat exchange tubes are arranged between the two tube sheets arranged relatively at the two ends of the heat exchanger; In addition, end plates are respectively provided at both ends of the heat exchanger, an inserting portion is provided on the tube plate, and an inserting fitting portion is provided on the end plate, and the inserting portion is inserted into the inserting fitting portion.

2. The air duct machine according to claim 1, characterized in that: A plurality of the inserting parts are arranged on the edge of the tube plate adjacent to the end plate, and a plurality of the inserting fitting parts are arranged on both sides of the end plate, respectively. The inserting parts are inserted into the corresponding inserting fitting parts.

3. The air duct machine according to claim 1, characterized in that: The insertion portion is a first insertion tongue formed on the tube plate, and the insertion matching portion is a first insertion hole formed on the end plate, and the first insertion tongue is inserted into the first insertion hole; Alternatively, the insertion portion is a second insertion hole formed on the tube plate, and the insertion fitting portion is a second insertion tongue formed on the end plate, and the second insertion tongue is inserted into the second insertion hole.

4. The air duct machine according to claim 1, characterized in that: The heat exchanger is further provided with a connecting component, and the connecting component is arranged between the two end plates; The two tube sheets located at the same end are connected to the corresponding ends of the connecting component.

5. The air duct machine according to claim 4, characterized in that: Extended connection parts are respectively arranged on both sides of the end of the connecting component, and the extended connection parts extend toward the tube sheet on the corresponding side, and the extended connection parts are connected to the tube sheet on the corresponding side.

6. The air duct machine according to claim 1, characterized in that: The housing further comprises a water receiving tray, wherein the water receiving tray forms a first water receiving portion and a second water receiving portion, wherein the first water receiving portion is provided with a vent, the first water receiving portion is provided in the housing and arranged between the inner walls of the housing, the first water receiving portion divides the interior of the housing into an air inlet cavity and an air outlet cavity, and the second water receiving portion extends along the inner wall of the housing; Wherein, the heat exchanger covers the ventilation opening.

7. The air duct machine according to claim 6, characterized in that: The second water receiving portion is further provided with a structural reinforcement member, the structural reinforcement member extends in a direction away from the first water receiving portion, and the structural reinforcement member is further provided with a detachable auxiliary fixing member; The heat exchanger is further provided with a connecting component, which is arranged between the two end plates, and the two tube plates located at the same end are connected to the corresponding ends of the connecting component, and the end of the connecting component is also provided with a folded connecting portion; The auxiliary fixing piece extends toward the connecting component, and the folded connecting portion is connected to a free end portion of the auxiliary fixing piece.

8. The air duct machine according to claim 4 or 7, characterized in that: It also includes a hanging assembly, the hanging assembly includes a supporting component and a bearing component, the bearing component is provided with a limiting portion, the supporting component is arranged in the housing, the bearing component is arranged on the supporting component, and the bearing component and the supporting component are arranged alternately; Wherein, the connecting component is further provided with a hanging part, the hanging part is hung on the bearing component, and the hanging part is cooperatively connected with the limiting part to limit the heat exchanger.

9. The air duct machine according to claim 1, characterized in that: The housing is also provided with a mounting support frame, the mounting support frame is formed with a mounting support surface, and the mounting support surface is also provided with a ventilation connection port; The duct machine further includes an electric control assembly, which includes an electric control box, a circuit board and a heat dissipation component. The electric control box is provided with a heat dissipation port. The circuit board is arranged in the electric control box, the heat dissipation component is arranged in the heat dissipation port, and the heat dissipation component is connected to the circuit board through thermal conduction. The electric control box is arranged on the mounting support surface, and the fan is arranged on the mounting support surface and connected to the ventilation connection port; A heat dissipation duct is formed between the electric control box and the volute of the fan, and the heat dissipation component is located in the heat dissipation duct and adjacent to the volute of the fan.

10. A duct machine, characterized in that: include: A housing, wherein the housing is provided with an air inlet and an air outlet; A heat exchanger, wherein the heat exchanger is configured to exchange heat with an airflow flowing therethrough to form a heat exchange airflow; A fan, the fan being configured to introduce airflow through the air inlet and send the airflow out through the air outlet after passing through the heat exchanger; Wherein, two tube sheets are arranged at the end of the heat exchanger, and the two tube sheets located at the same end are arranged relatively tilted, and heat exchange tubes are arranged between the two tube sheets arranged relatively at the two ends of the heat exchanger; In addition, end plates are respectively provided at both ends of the heat exchanger, the end plates are located between the two tube plates, and the end plates are configured to be detachably preassembled with the tube plates.

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