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 exchange assembly comprises a heat exchanger and a water pan, the heat exchanger is configured to perform heat exchange on airflow flowing through the heat exchanger to form heat exchange airflow, and the heat exchanger is arranged on the water pan; 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; wherein the heat exchanger comprises a heat exchange tube and tube plates, and the heat exchange tube is arranged between the two oppositely arranged tube plates; in addition, the heat exchanger is further provided with an installation supporting part, the installation supporting part is located between the two oppositely-arranged tube plates, and the installation supporting part is further provided with a refrigerant detection sensor. The sensor can be conveniently and rapidly installed, so that the assembling difficulty is reduced, and the assembling efficiency 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 generally 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, leads out an air supply duct from the indoor side to each room, returns to the outdoor unit through the return air duct, and then after cooling and mixing with fresh air, the fresh air is sent out again.

[0003] Chinese Patent Publication No. CN221258945U discloses an air duct machine, which is configured with a refrigerant sensor. Among them, the refrigerant detection sensor is arranged in a detection space surrounded by an indoor heat exchanger, a water receiving tray and a machine shell. However, during the assembly process, limited by the space inside the machine shell, the refrigerant detection sensor needs to be installed at a position between the heat exchanger and the machine shell, and the installation space is small, resulting in greater assembly difficulty and thus affecting the assembly efficiency.

[0004] In view of this, how to design a technology that can conveniently and quickly install sensors to reduce the assembly difficulty and improve the assembly efficiency is the technical problem to be solved by this application. Summary of the Invention

[0005] In response to the problems pointed out in the background art, this application proposes an air duct machine to achieve convenient and quick installation of sensors to reduce the assembly difficulty and improve the assembly efficiency.

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

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

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

[0009] A heat exchange assembly, the heat exchange assembly includes a heat exchanger and a water receiving tray. The heat exchanger is configured to exchange heat with the flowing air to form a heat exchange air flow, and the heat exchanger is arranged on the water receiving tray;

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

[0011] Among them, the heat exchanger includes heat exchange tubes and tube sheets, and the heat exchange tubes are arranged between two relatively arranged tube sheets;

[0012] In addition, an installation and support part is provided on the heat exchanger. The installation and support part is located between two oppositely arranged tube sheets, and a refrigerant detection sensor is further provided on the installation and support part.

[0013] In one embodiment of the present application, the refrigerant detection sensor is provided with an installation and fixing frame, and the installation and fixing frame is detachably installed on the installation and support part.

[0014] In one embodiment of the present application, slots are provided on both sides of the installation and support part, and the installation and fixing frame is inserted into the slots; the installation and fixing frame is also connected to the installation and support part by screws.

[0015] In one embodiment of the present application, a first clamping hole is provided on the installation and support part, and a first clamping claw is provided on the installation and fixing frame, and the first clamping claw is clamped in the first clamping hole;

[0016] Or, a second clamping claw is provided on the installation and support part, and a second clamping hole is provided on the installation and fixing frame, and the second clamping claw is clamped in the second clamping hole.

[0017] In one embodiment of the present application, two oppositely inclined tube sheets are respectively provided at both ends of the heat exchanger, and heat exchange tubes are provided between two tube sheets that are located at different ends and are oppositely arranged;

[0018] Two tube sheets at the same end of the heat exchanger are respectively connected to the corresponding side edges of the end plate;

[0019] The installation and support part is provided on the end plate.

[0020] In one embodiment of the present application, an insertion part is provided on the tube sheet, and an insertion cooperation part is provided on the end plate, and the insertion part is inserted into the insertion cooperation part.

[0021] In one embodiment of the present application, the insertion part is a first insertion tongue formed on the tube sheet, and the insertion cooperation part is a first insertion hole formed on the end plate, and the first insertion tongue is inserted into the first insertion hole;

[0022] Or, the insertion part is a second insertion hole formed on the tube sheet, and the insertion cooperation part is a second insertion tongue formed on the end plate, and the second insertion tongue is inserted into the second insertion hole.

[0023] In one embodiment of the present application, the water receiving tray is arranged in the housing. The water receiving tray divides the housing into an air inlet cavity and an air outlet cavity. The water receiving tray is provided with a ventilation opening, and the ventilation opening communicates the air inlet cavity and the air outlet cavity. The ventilation opening is oppositely arranged to the air inlet.

[0024] The heat exchanger covers the ventilation opening, and the installation support part is arranged at the ventilation opening.

[0025] In one embodiment of the present application, the water receiving tray forms a first water receiving part and a second water receiving part. The ventilation opening is provided on the first water receiving part. The first water receiving part is arranged in the housing and 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;

[0026] A structural strengthening member is further provided on the second water receiving part. The structural strengthening member extends in a direction away from the first water receiving part. A detachable auxiliary fixing member is further provided on the structural strengthening member;

[0027] A connecting member is further provided on the heat exchanger. The connecting member is arranged between the two end plates. The two tube plates at the same end are connected to the corresponding ends of the connecting member. A folded connecting part is further provided at the end of the connecting member;

[0028] The auxiliary fixing member extends towards the connecting member, and the folded connecting part is connected to the free end of the auxiliary fixing member.

[0029] Another embodiment of the present application further provides an air duct machine, including:

[0030] A housing, on which an air inlet and an air outlet are provided;

[0031] A heat exchange assembly, which includes a heat exchanger and a water receiving tray. The heat exchanger is configured to exchange heat with the flowing air to form a heat exchange air flow. The heat exchanger is arranged on the water receiving tray;

[0032] A fan, which is configured to introduce air flow through the air inlet and send it out through the air outlet after passing through the heat exchanger;

[0033] Wherein, an installation support part is further provided on the heat exchanger. The installation support part is arranged on the windward side of the heat exchanger and is arranged opposite to the air inlet. A refrigerant detection sensor is further provided on the installation support part.

[0034] Compared with the prior art, the advantages and positive effects of the present application are: by providing an installation support part on the heat exchanger, and the installation support part is arranged inside the end of the heat exchanger, the space occupied by the heat exchanger can be fully utilized to place the installation support part. When installing the refrigerant detection sensor, the refrigerant detection sensor can be put into the housing through the air inlet and fixed on the installation support part. Since the space between the heat exchanger and the air inlet is large and it is convenient for the operator to reach in with his hand for operation, the assembly difficulty is reduced, so as to improve the overall assembly efficiency of the air duct machine. Brief Description of the Drawings

[0035] Figure 1 It is a schematic structural diagram of an air duct machine according to an embodiment of the present application;

[0036] Figure 2 It is Figure 1 a schematic partial structural diagram of the air duct machine;

[0037] Figure 3 It is Figure 2 one of the schematic structural diagrams of the heat exchange component in;

[0038] Figure 4 It is Figure 2 another schematic structural diagram of the heat exchange component in;

[0039] Figure 5 It is Figure 3 a schematic partial structural diagram of the heat exchanger in;

[0040] Figure 6 It is Figure 3 a schematic structural diagram of the water receiving tray in;

[0041] Figure 7 It is a schematic structural diagram of an air duct machine according to another embodiment of the present application;

[0042] Figure 8 It is Figure 1 a schematic structural diagram of the hoisting component in the air duct machine;

[0043] Figure 9 It is Figure 8 a schematic structural diagram of the bearing component in;

[0044] Figure 10 It is Figure 2 an assembly diagram of the fan and the electric control component in;

[0045] Figure 11 It is Figure 10 an assembly diagram of the installation support frame and the electric control component in. Detailed Embodiments

[0046] 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.

[0047] In this application, the air conditioner performs the refrigeration cycle of the air conditioner 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 the indoor space.

[0048] 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.

[0049] The expansion valve expands the high-temperature and high-pressure liquid-phase refrigerant formed by condensation 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. Throughout the cycle, the air conditioner can adjust the temperature of the indoor space.

[0050] 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 the indoor heat exchanger, and the expansion valve can be provided in the indoor unit or the outdoor unit.

[0051] The indoor heat exchanger and the outdoor heat exchanger serve as condensers or evaporators. When the indoor heat exchanger serves as a condenser, the air conditioner serves as a heater in the heating mode. When the indoor heat exchanger serves as an evaporator, the air conditioner serves as a cooler in the cooling mode.

[0052] As Figure 1 - Figure 2 shown, in an embodiment of this application, a 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.

[0053] The housing 1 serves as an external support and protection body for installing relevant components. In order to meet the requirements of air flow and heat exchange, an air inlet 11 and an air outlet 12 are provided on the housing 1.

[0054] The heat exchange component 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 component 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.

[0055] 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 component 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.

[0056] The blower 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.

[0057] The electronic control assembly 4 is mainly used to achieve electrical connection with an external power supply, and can also control the operation of the internal electrical components of the air duct machine.

[0058] The heat exchange assembly 2, the blower 3, and the electronic 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 electronic control box 41 are arranged in sequence.

[0059] 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.

[0060] 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.

[0061] In one embodiment, two tube plates 210 are arranged 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 arranged between the two tube plates 210 arranged relatively at the two ends of the heat exchanger;

[0062] In addition, end plates 214 are respectively arranged at the two ends of the heat exchanger. The end plates 214 are located between the two tube plates 210, and the end plates 214 are configured to be detachably pre-assembled with the tube plates 210.

[0063] The tube plate 210 is provided with an insertion part 2101, and the end plate 214 is provided with an insertion cooperation part 2141. The insertion part 2101 is inserted on the insertion cooperation part 2141.

[0064] Specifically, during the actual assembly 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. By inserting the insertion part 2101 provided on the tube sheet 210 into the insertion mating part 2141 provided on the end plate 214, the two tube sheets 210 on both sides can be pre-assembled and positioned 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 can position the positions of the two tube sheets 210, so that the relevant mounting holes on the tube sheets 210 can reach the accurate mounting positions, thereby facilitating the operator to perform assembly and fixation.

[0065] 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, and the first insertion tongue is inserted into the first insertion hole; alternatively, 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, and the second insertion tongue is inserted into the second insertion hole.

[0066] Specifically, by using the method of inserting holes and tongues, the tube sheet 210 can be conveniently pre-assembled onto the end plate 214.

[0067] 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 onto the clamping mating part.

[0068] 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 to realize pre-assembling the tube sheet 210 onto the end plate 214. Among them, the manifestation entities of the clamping part and the clamping mating part can adopt the methods of clamping tongues cooperating with clamping grooves or holes, etc., which will not be elaborated here.

[0069] By pre-assembling the two tube sheets 210 of the heat exchanger with the corresponding end plates 214 together, in the actual assembly process, the corresponding tube sheets 210 can be pre-assembled and positioned through the end plate 214. After the insertion part 2101 and the insertion mating part 2141 are connected together, the tube sheets 210 can be positioned and installed through the end plate 214, and the inclination angles of the two tube sheets 210 can be automatically adjusted. At the same time, the relevant mounting hole positions on the tube sheets 210 can be correspondingly aligned 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.

[0070] In some embodiments, a plurality of the insertion parts 2101 are provided on the tube sheet 210 adjacent to the edge of the end plate 214. A plurality of the insertion mating parts 2141 are respectively provided on both sides of the end plate 214, and the insertion parts 2101 are inserted on the corresponding insertion mating parts 2141.

[0071] Specifically, in order to improve the connection reliability between the tube sheet 210 and the end plate 214 and 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 cooperation to insert the tube sheet 210 and the end plate 214 together.

[0072] Similarly, for the clamping method, a plurality of clamping parts and clamping mating parts are used in cooperation to clamp the tube sheet 210 and the end plate 214 together.

[0073] In a certain embodiment, the heat exchanger is further provided with a connecting component 215, and the connecting component 215 is arranged between the two end plates 214;

[0074] The two tube sheets 210 at the same end are connected to the corresponding end of the connecting component.

[0075] Specifically, the adjacent end parts of the first heat exchange component 212 and the second heat exchange component 213 are respectively arranged on the connecting component 215, and an air inlet area is formed between the end parts of the first heat exchange component 212 and the second heat exchange component 213 that are far away from each other. The connecting component 215 can fixedly connect the first heat exchange component 212 and the second heat exchange component 213, and the connecting component 215 can also cover the end parts of the first heat exchange component 212 and the second heat exchange component 213 to block the leakage of air flow between the end parts of the first heat exchange component 212 and the second heat exchange component 213.

[0076] In another embodiment, extension connecting parts 2151 are respectively provided on both sides of the end part of the connecting component 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.

[0077] 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, the extension connecting parts 2151 are provided on the connecting component. The extension connecting parts 2151 can extend to the corresponding tube sheet 210 so that the extension connecting parts 2151 are fixedly connected to the tube sheet 210. For example, the extension connecting parts 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.

[0078] 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 may be provided on the heat exchanger. The refrigerant detection sensor 23 can timely detect the refrigerant leakage situation when the heat exchanger has refrigerant leakage for corresponding processing such as shutdown alarm.

[0079] In a certain embodiment, in order to facilitate the operator to conveniently assemble the refrigerant detection sensor 23, an installation support portion 216 may also be provided on the heat exchanger. The installation support portion 216 is arranged on the windward surface 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.

[0080] Specifically, for the installation support portion 216, it is arranged on the windward surface of the heat exchanger, and the windward surface 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.

[0081] In some embodiments, the installation support portion 216 is located between two relatively arranged tube sheets 210.

[0082] 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 surface of the heat exchanger.

[0083] By providing the installation support portion 216 on the heat exchanger, and the installation support portion 216 is arranged 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 his hand for operation, the assembly difficulty is reduced, so as to improve the overall assembly efficiency of the air duct machine.

[0084] In another embodiment, in order to conveniently install 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.

[0085] Specifically, during the actual assembly process, for the refrigerant detection sensor 23, it can be first assembled to the mounting bracket 2161 outside the housing. The mounting bracket 2161 can be provided with corresponding mounting structures to meet the fixed mounting requirements of the refrigerant detection sensor 23. For example, the refrigerant detection sensor 23 can be assembled to the mounting bracket 2161 by means of snap mounting or screw fixation.

[0086] Then, the refrigerant detection sensor 23 assembled to the mounting bracket 2161 is placed into the housing through the air inlet of the housing, and is connected to the mounting support portion 216 through the mounting bracket 2161, so as to realize the fixed assembly of the refrigerant detection sensor 23 to the mounting support portion 216.

[0087] In some embodiments, slots are provided on both sides of the mounting support portion 216, and the mounting bracket 2161 is inserted into the slots; the mounting bracket 2161 is also connected to the mounting support portion 216 by screws.

[0088] Specifically, in order to conveniently and quickly pre-assemble the mounting bracket 2161 to the mounting support portion 216, slots can be provided on both sides of the mounting support portion 216, and the mounting bracket 2161 will slide into and be inserted into the mounting support portion 216 through the slots on both sides.

[0089] There are various forms of the assembly method of the mounting bracket 2161 and the mounting support portion 216. For example: Then, the mounting support portion 216 and the mounting bracket 2161 are further firmly connected together by screws.

[0090] Alternatively, the mounting bracket 2161 is snap-mounted to the mounting support portion 216. Specifically, a first clamping hole is provided on the mounting support portion 216, and a first clamping claw is provided on the mounting bracket 2161, and the first clamping claw is clamped in the first clamping hole; or, a second clamping claw is provided on the mounting support portion 216, and a second clamping hole is provided on the mounting bracket 2161, and the second clamping claw is clamped in the second clamping hole.

[0091] In another embodiment of the present application, for the water receiving tray, the water receiving tray forms a first water receiving portion 221 and a second water receiving portion 222. A ventilation opening 223 is provided on the first water receiving portion 221. The first water receiving portion 221 is arranged in the housing and disposed between the inner walls of the housing. The first water receiving portion 221 divides the interior of the housing into an air inlet cavity and an air outlet cavity. The second water receiving portion 222 extends along the inner wall of the housing;

[0092] Wherein, the heat exchanger covers the ventilation opening 223.

[0093] Specifically, the water receiving tray is formed with a first water receiving portion 221 and a second water receiving portion 222. Through the first water receiving portion 221 and the second water receiving portion 222, the requirement of collecting the condensed water of the heat exchanger can be met under the condition that the housing is installed vertically or horizontally.

[0094] 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 portion 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.

[0095] In a certain embodiment, a first structural reinforcement 224 is further provided on the second water receiving portion 222. The first structural reinforcement 224 extends in a direction away from the first water receiving portion 221, and a detachable auxiliary fixing member 225 is further provided on the first structural reinforcement 224.

[0096] 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 portion 222 to better meet the requirement of collecting the condensed water of the heat exchanger.

[0097] At the same time, since the heat exchanger 21 needs to be assembled to the water receiving tray 22, for this reason, the auxiliary fixing member 225 configured on the first structural reinforcement 224 can be connected to the connecting member 214 configured on the heat exchanger 21, so that the heat exchanger 21 can be firmly installed on the water receiving tray 22.

[0098] In an embodiment, a folding connection portion 2152 is further provided at the end of the connecting member; the auxiliary fixing member 225 extends towards the connecting member, and the folding connection portion 2152 is connected to the free end of the auxiliary fixing member 225.

[0099] Specifically, the connecting member is also made of a sheet metal part. The folding connection portion 2152 configured on the connecting member can be connected and fixed 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 connecting member 214.

[0100] In an 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.

[0101] 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.

[0102] Among them, the first connection support part 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.

[0103] In another embodiment, in order to effectively cover the ventilation opening 223 through the heat exchanger 21, a second connection support part 227 is further provided at the ventilation opening 223, and the second connection support part 227 is connected to the corresponding end plate 214.

[0104] Specifically, both ends of the heat exchanger 21 are respectively connected to the first connection support part 226, and a sealing strip can be added at the connection part. Similarly, for the end plates 214 on both sides of the heat exchanger 21, they are connected to the second connection support parts 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.

[0105] In one embodiment, the end plate 214 abuts against the outside of the second connection support part 227, and the end plate 214 is fixedly connected to the second connection support part 227 by screws.

[0106] 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 part 227, and the positioning protrusion 228 is located in the positioning notch 2142.

[0107] Specifically, after the heat exchanger 21 is assembled onto the water receiving tray 22, the cooperation between the positioning notch 2142 and the positioning protrusion 228 plays a role in positioning and installation, so that the heat exchanger 21 can be accurately and reliably installed on the water receiving tray 22.

[0108] In a certain embodiment, an annular protrusion structure is provided on the outer periphery of the ventilation opening 223, and the first connection support part 226 and the second connection support part 227 are formed on the annular protrusion structure.

[0109] In one embodiment, as Figure 2 shown, the heat exchanger 21 can be arranged in the air outlet cavity.

[0110] 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.

[0111] Therefore, the following structural improvement design is carried out on the housing 1.

[0112] Among them, 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 member (not shown) is further provided between the shielding portion 18 and the heat exchange component, and the sealing member seals the gap.

[0113] Specifically, when the heat exchanger 22 is located in the air outlet cavity, after the heat exchange component 2 is integrally installed in 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 member, thereby solving the problem of air leakage at the gap.

[0114] Among them, the sealing member can be a commonly used sealing material in air conditioners such as sealing rubber cotton.

[0115] 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 member is provided between the first shielding sub-portion 181 and the heat exchange component.

[0116] Specifically, in the actual use process, it is not the case that air leakage exists around the entire heat exchange component 2. Air leakage is likely to occur at the end of the heat exchanger. For this reason, the first shielding sub-portion 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.

[0117] By providing a shielding portion 18 inside the housing, the shielding portion 18 is located in the air outlet cavity and inside the heat exchanger, and the shielding portion 18 presses the sealing member on the heat exchange component. Then, the gap formed between the heat exchange component and the inner wall of the housing can be sealed through the sealing member. In the actual use process, after the fan is started, after the air enters the housing through the air inlet, the sealing member can block 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 use reliability of the air duct machine.

[0118] In one embodiment, a second installation interval is formed between the edge of the heat exchanger close to the first connection support portion 226 and the inner wall of the housing;

[0119] A second shielding sub - part 182 is arranged in the outer shell. 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.

[0120] Specifically, in order to comprehensively shield the gaps around the heat exchange component 2 and the outer shell 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 outer shell 1 to shield and protect the gaps between the four - week of the water receiving tray 22 and the inner wall of the outer shell 1.

[0121] 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 arranged in the outer shell and is located between the blower and the heat exchange component; the hoisting component 5 is configured to hang and install the heat exchanger 21.

[0122] Specifically, a hanging part 211 is further arranged on the heat exchanger. The hanging part 211 is configured to hang on the hoisting component 5 when the outer shell is in an upright installation state.

[0123] After the hoisting component 5 is installed in the outer shell, when installing the heat exchanger, the heat exchanger is hung on the hoisting component 5 through the hanging part 211, so as to realize the suspension and installation of the heat exchanger through the hoisting component 5, and the hoisting component 5 bears the weight of the heat exchanger, thereby reducing the damage to the water receiving tray 22 caused by the impact of the heat exchanger 21 during falling.

[0124] In some embodiments, a hanging part 211 is arranged on the connecting component 215. The hanging part 211 is used to meet the requirements of hanging and installing the heat exchanger. At the same time, the connecting component 215 can effectively connect and fix the first heat exchange part 212 and the second heat exchange part 213 to ensure that after hanging and installing, the first heat exchange part 212 and the second heat exchange part 213 can be stably connected to the connecting component 215.

[0125] In one embodiment, the hoisting component 5 includes a support component 51 and a bearing component 52. A limiting part 521 is arranged on the bearing component 52. The support component 51 is arranged in the outer shell, 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.

[0126] Specifically, the hoisting assembly 5 is fixedly arranged in the housing through the support member 51, and the support member 51 is used to support and install the bearing member 52. A hanging portion 211 is further arranged on the heat exchanger, and the hanging portion 211 is hung on the bearing member 52, and the hanging portion 211 is cooperatively connected with the limiting portion 521 to limit the heat exchanger.

[0127] On the one hand, the hanging portion 211 is hung on the bearing member 52 to realize the suspension and installation of the heat exchanger through the bearing member 52; on the other hand, the hanging portion 211 is limited by the limiting portion 521 arranged on the bearing member 52, and further, when the heat exchanger is hung on the bearing member 52 through the hanging portion 211, the installation position of the heat exchanger is accurately limited through the limiting portion 521.

[0128] In some embodiments, since the support member 51 needs to satisfy the functions of being firmly installed in the housing and providing effective support, for this reason, the hoisting assembly 5 further includes a second structural reinforcement member 53, the second structural reinforcement member 53 is arranged on the support member 51, and the second structural reinforcement member 53 extends along the length direction of the support member 51.

[0129] Specifically, usually, the support member 51 and the bearing member 52 in the hoisting assembly 5 are formed by bending sheet metal. For the support member 51, in order to improve its overall structural strength to improve the support ability, a second structural reinforcement member 53 is additionally configured. The second structural reinforcement member 53 extends along the length direction of the support member 51 and is fixed on the support member 51 to improve the overall structural strength of the support member 51.

[0130] In one embodiment, an insertion portion 2101 is arranged at one end of the support member 51, and a fixing portion is arranged at the other end of the support member 51;

[0131] An insertion mating portion 2141 is arranged in the housing, and a fixing mating portion is also arranged in the housing;

[0132] The insertion portion 2101 is inserted into the insertion mating portion 2141, and screws fixedly connect the fixing portion and the fixed connection portion together.

[0133] Specifically, in order to facilitate the on-site rapid assembly of the support member 51, an insertion portion 2101 is arranged at one end of the support member 51. During installation, the insertion portion 2101 is inserted into the insertion mating portion 2141 in the housing to realize pre-assembly. Then, the fixing portion and the fixed connection portion are fixedly connected together through screws, and further, the support member 51 is fixedly connected in the housing.

[0134] In an 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, a screw passes through the through hole and is threadedly connected to the threaded hole.

[0135] In some embodiments, the hoisting assembly 5 includes at least two of the support members 51 arranged side by side, and the hoisting assembly 5 includes at least two of the load-bearing members 52 arranged side by side.

[0136] 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, and two of the hanging portions 211 are provided on the outer surface of the connecting member 215. One of the hanging portions 211 is provided on the first surface, and the other hanging portion 211 is provided on the second surface, and the two hanging portions 211 are arranged at intervals; the hanging portion 211 is arranged to hang on the corresponding load-bearing member 52.

[0137] Specifically, in order to reliably hang and install the heat exchanger, two hanging portions 211 arranged at intervals and displaced are provided on the outer surface of the connecting member 215. The two hanging portions 211 can stably hang the entire heat exchanger to ensure the attitude stability of the heat exchanger during transportation and use.

[0138] In another embodiment, the housing includes a support frame 15 and a plurality of guard plates 16. The guard plates 16 are provided on the support frame 15, and the insertion and fitting portion 2141 and the fixed fitting portion are formed on the support frame 15;

[0139] The insertion portion 2101 includes a first tongue 511 provided at an end of the support member 51. The first tongue 511 extends along the length direction of the support member 51. The insertion and fitting portion 2141 includes a first insertion hole provided on the support frame 15, and the first tongue 511 is inserted into the first insertion hole.

[0140] Specifically, the insertion portion 2101 includes a first tongue 511. During assembly, the first tongue 511 will be inserted into the corresponding first insertion hole on the support frame 15 to position the pre-assembled support member 51 by the cooperation of the first tongue 511 and the first insertion hole. When the first tongue 511 is assembled, it is inserted in a plug-in manner, which can facilitate the on-site staff to quickly assemble.

[0141] In a certain embodiment, in order to improve the reliability of the insertion, the insertion portion 2101 further includes a second tongue 512. The second tongue 512 extends along the length direction of the support member 51. The second tongue 512 is arranged side by side with the first tongue 511, and a raised portion 513 is further provided at the free end of the second tongue 512. The raised portion 513 extends away from the first tongue 511;

[0142] 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.

[0143] 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.

[0144] 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.

[0145] 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.

[0146] In one embodiment, in order to facilitate the installation of the support frame 13 into the housing 1, the support frame 13 can be assembled into the housing 1 by plug-in.

[0147] Specifically, the housing is provided with a bearing slot 17, and the mounting support frame 13 is inserted into the bearing slot 17. In this way, during the on-site assembly process of the 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 mounting support frame 13 is supported by the bearing slot 17, and on the other hand, the bearing slot 17 can also limit and fix the mounting support frame 13.

[0148] In some embodiments, the housing includes a support frame 15 and a plurality of guard plates 16 , and the guard plates 16 are detachably disposed on the support frame 15 .

[0149] 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 .

[0150] Specifically, when assembling the outer shell 1, a plurality of protective plates 16 are assembled and fixed on the support frame 15. For the protective plate 16 with the bearing slot 17, after being fixed on the support frame 15, the installation support frame 13 can be inserted between the two bearing slots 17 first, and then the remaining protective plates 16 are assembled.

[0151] In another embodiment, an installation support surface 131 is formed on the installation support frame 13, and a ventilation connection port 132 is further provided on the installation support surface 131;

[0152] The electronic control component 4 includes an electronic control box 41. The electronic control box 41 serves as an installation component of the electronic control component 4 and is installed in the outer shell 1 through the electronic control box 41.

[0153] The electronic control component 4 further includes a circuit board 42, and the circuit board 42 is arranged in the electronic 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.

[0154] The installation support frame 13 is arranged in the outer shell 1, the electronic control box 41 is arranged on the installation support surface 131, and the fan 3 is arranged on the installation support surface 131 and connected to the ventilation connection port 132;

[0155] Wherein, the electronic control box 41 and the fan 3 are located between the installation support frame 13 and the heat exchange component 2.

[0156] Specifically, the installation support frame 13 is fixedly arranged inside the outer shell 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.

[0157] 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 outer shell 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 outer shell 1 through the air outlet 12.

[0158] 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.

[0159] 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 and the ventilation connection port 132 be reliably docked.

[0160] In one 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.

[0161] Specifically, during the power-on operation of the circuit board 42, the circuit board 42 generates heat. Therefore, heat dissipation treatment needs to be performed 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 a material with excellent thermal conductivity (such as aluminum or 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.

[0162] After the fan 3 starts, the air flow after heat exchange through the heat exchanger 21 will flow towards the direction of the fan 3. During the flow 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.

[0163] In one embodiment, a diversion cover 14 is further provided 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.

[0164] Specifically, the diversion cover 14 is connected to the ventilation connection port 132 to guide the air flow output from the fan 3, and the diversion cover 14 guides the air flow to flow towards the air outlet 12 of the housing 1 to increase the air outlet coverage area of the air outlet 12.

[0165] In one embodiment, the surface of the electronic control box 41 adjacent to the volute of the fan 3 is a diversion surface 410, the diversion surface 410 is inclined, 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.

[0166] Specifically, in order to improve the heat dissipation efficiency of the circuit board 42 to improve the operation reliability of the circuit board 42, the surface of the electronic control box 41 adjacent to the volute of the fan 3 is a diversion surface 410 to guide the air flow to flow through the electronic 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 starts, the air flow after heat exchange through 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 electronic control box can be effectively cooled through the heat dissipation air duct.

[0167] 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.

[0168] 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 flowing direction of the air flow in the heat dissipation air duct. On the one hand, the air flow can flow along the heat dissipation fins during the flowing process to quickly take away 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.

[0169] In some embodiments of the present application, the electric control box 41 may include a box body 411, the circuit board 42 is arranged in the box body 411, and the box body 411 is arranged in the outer shell 1. The box body 411 forms a space for installing the circuit board 42, and is assembled into the outer shell 1 through the box body 411 to realize the installation and fixation of the electric control box 41.

[0170] In one embodiment, the electric control box 41 may include a box cover 412, and the box cover 412 is detachably arranged 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 maintenance.

[0171] In certain embodiments, for the drainage surface 410 formed on the electric control box 41, the drainage surface 410 may be formed on the box body 411. The drainage surface 410 is formed on the box body 411, and along the direction away from the water receiving tray 22, the drainage surface 410 extends obliquely from the inner wall position of the outer shell 1. That is, the first end of the drainage surface 410 on the box body 411 is close to the side wall of the outer shell 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 outer shell 1 and the water receiving tray 22.

[0172] In certain 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 cables of the circuit board 42 in the electric control box 41 extending out of the electric control box 41 are 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.

[0173] In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in a suitable manner in any one or more embodiments or examples.

[0174] The above are only specific embodiments 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 in the present application should be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall 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 exchange component, the heat exchange component comprising a heat exchanger and a water receiving tray, the heat exchanger being configured to exchange heat with the airflow flowing therethrough to form a heat exchange airflow, and the heat exchanger being disposed on the water receiving tray; 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, the heat exchanger comprises a heat exchange tube and a tube sheet, and the heat exchange tube is arranged between two oppositely arranged tube sheets; In addition, the heat exchanger is also provided with a mounting support portion, the mounting support portion is located between the two oppositely arranged tube sheets, and a refrigerant detection sensor is also provided on the mounting support portion.

2. The air duct machine according to claim 1, characterized in that: The refrigerant detection sensor is provided with a mounting bracket, and the mounting bracket is detachably mounted on the mounting support portion.

3. The air duct machine according to claim 2, characterized in that: Slots are arranged on both sides of the mounting support portion, and the mounting fixing frame is inserted into the slots; the mounting fixing frame is also connected to the mounting support portion by screws.

4. The air duct machine according to claim 2, characterized in that: The mounting support portion is provided with a first clamping hole, and the mounting fixing frame is provided with a first clamping claw, and the first clamping claw is clamped in the first clamping hole; Alternatively, a second clamping claw is provided on the installation support portion, a second clamping hole is provided on the installation fixing frame, and the second clamping claw is clamped in the second clamping hole.

5. The air duct machine according to any one of claims 1 to 4, characterized in that: Two relatively inclined tube sheets are respectively arranged at the two ends of the heat exchanger, and the heat exchange tube is arranged between the two relatively inclined tube sheets located at different ends of the heat exchanger; An end plate is provided between the two tube plates located at the same end of the heat exchanger; The mounting support portion is disposed on the end plate.

6. The air duct machine according to claim 5, characterized in that: The tube plate is provided with an inserting portion, the end plate is provided with an inserting fitting portion, and the inserting portion is inserted into the inserting fitting portion.

7. The air duct machine according to claim 6, 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.

8. The air duct machine according to claim 5, characterized in that: The water receiving tray is arranged in the housing, the water receiving tray divides the housing into an air inlet cavity and an air outlet cavity, the water receiving tray is provided with a vent, the vent communicates with the air inlet cavity and the air outlet cavity, and the vent is arranged opposite to the air inlet; The heat exchanger covers the vent, and the mounting support is arranged at the vent.

9. The air duct machine according to claim 8, characterized in that: The water receiving tray forms a first water receiving portion and a second water receiving portion, the first water receiving portion is provided with the vent, the first water receiving portion is provided in the shell and arranged between the inner walls of the shell, the first water receiving portion divides the interior of the shell into an air inlet cavity and an air outlet cavity, and the second water receiving portion extends along the inner wall of the shell; 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.

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 exchange component, the heat exchange component comprising a heat exchanger and a water receiving tray, the heat exchanger being configured to exchange heat with the airflow flowing therethrough to form a heat exchange airflow, and the heat exchanger being disposed on the water receiving tray; 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, the heat exchanger is also provided with a mounting support portion, the mounting support portion is arranged on the windward surface of the heat exchanger and is arranged opposite to the air inlet, and a refrigerant detection sensor is also provided on the mounting support portion.

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