CN223191815U - Heat exchange assembly, indoor unit and heating ventilation system - Google Patents

Abstract

An embodiment of the present application provides a heat exchange component, an indoor unit and a HVAC system, which relates to the technical field of HVAC systems. The heat exchange component includes a heat exchange module, the heat exchange module includes a heat exchanger, the heat exchanger includes a heat exchange tube, the heat exchange tube includes a straight tube section and a curved tube section alternately connected in sequence along its extension direction, the heat exchange module, the first enclosure structure and the outer shell form a first monitoring cavity, so that the first monitoring cavity can accommodate refrigerant leaked at the connection between the straight tube section and the curved tube section of the heat exchange tube, so that the refrigerant concentration in the first monitoring cavity increases, and the first refrigerant sensor can accurately identify the refrigerant, thereby increasing the stability of the product.

Description

Heat exchange assembly, indoor unit and heating ventilation system

Technical Field

The application relates to the technical field of heating and ventilation systems, in particular to a heat exchange assembly, an indoor unit and a heating and ventilation system.

Background

The heat exchanger is possibly leaked due to the influence of tightness, and the leakage of the refrigerant can reduce the heat exchange efficiency of the heat exchanger and easily cause potential safety hazards. Therefore, a refrigerant sensor is required to monitor whether the refrigerant leaks.

In the related art, for different air conditioner types, because of uncertainty of specific positions of refrigerant leakage points and diversity of air conditioner installation modes, relevant setting positions of refrigerant sensors are not fixed, and only the normal layout requirements of parts in the air conditioner are met. Therefore, the refrigerant sensor cannot timely and accurately monitor and feed back the refrigerant leakage conditions of different positions in the heat exchanger, and the reliability of refrigerant monitoring is poor.

Disclosure of utility model

The application provides a heat exchange assembly, an indoor unit and a heating and ventilation system, wherein a refrigerant sensor is arranged in a first monitoring cavity, so that leaked refrigerant in the first monitoring cavity can be monitored in time, and the stability of a product is improved.

In a first aspect, an embodiment of the present application provides a heat exchange assembly for being placed in a housing of an indoor unit, including:

The heat exchange module comprises a heat exchanger, wherein the heat exchanger comprises heat exchange pipes, the heat exchange pipes comprise straight pipe sections and bent pipe sections which are sequentially and alternately connected along the extending direction of the heat exchange pipes, the straight pipe sections are distributed along a first direction, and the bent pipe sections are positioned on one side of the straight pipe sections along the first direction;

A first coaming structure located on one side of the heat exchange module along a first direction and connected with the heat exchange module, wherein one side of the first coaming structure away from the heat exchange module is used for abutting against the shell, the heat exchange module, the first coaming structure and the shell are enclosed into a first monitoring cavity, and

The first refrigerant sensor is connected with the heat exchange module and is positioned in the first monitoring cavity.

In some embodiments, the first refrigerant sensor is located at a bottom end of the first monitoring chamber along a gravitational direction.

In some embodiments, the heat exchange module comprises:

At least two heat exchangers spaced apart along a second direction perpendicular to the first direction, and

The first mounting plate is connected between two adjacent heat exchangers and is arranged on one side of the heat exchanger along a first direction;

Wherein, first refrigerant sensor installs in first mounting panel.

In some embodiments, the first coaming structure comprises:

The two first side coamings are respectively arranged on one side, away from each other, of the two heat exchangers along the edge in the second direction, and one side, away from the heat exchangers, of the two first side coamings is abutted against the shell, and the first side coamings, the heat exchangers, the first mounting plate and the shell are enclosed to form a first monitoring cavity.

In some embodiments, the heat exchange assembly further comprises a first heat exchange manifold and a second heat exchange manifold, the first heat exchange manifold, the second heat exchange manifold, and the heat exchange tubes being in communication to form a refrigerant flow path;

At least one opening is formed in one of the two first side coamings, a sealing plug is embedded in the opening, a first pipe passing hole for the first heat exchange main pipe to be inserted and a second pipe passing hole for the second heat exchange main pipe to be inserted are formed in the sealing plug.

In some embodiments, at least one of the two first side panels bulges away from the first monitoring chamber and forms a flash chamber in communication with the first monitoring chamber.

In some embodiments, the heat exchange assembly further comprises:

The heat exchanger comprises a plurality of heat exchange pipes, each branch pipe is connected with one end of each heat exchange pipe, and the other end of each branch pipe is communicated with a first heat exchange main pipe;

Wherein the plurality of branch pipes are located in the first monitoring chamber.

In some embodiments, the heat exchange assembly further comprises:

The refrigerant distributing pipe comprises a collecting pipe and a plurality of capillaries, one end of each capillary is connected with the other end of each heat exchange pipe, the other end of each capillary is connected with the collecting pipe, and the collecting pipe is communicated with the second heat exchange main pipe;

Wherein, refrigerant distributing pipe is located first monitoring intracavity.

In some embodiments, the first side panel comprises:

the first body and the first vertical edges are formed by bending the two ends of the first body along the first direction;

The first vertical edge adjacent to the heat exchanger is connected with the heat exchanger, and the first vertical edge far away from the heat exchanger is used for being abutted with the shell.

In some embodiments, the heat exchange assembly further comprises:

The electric connecting wire is electrically connected with the first refrigerant sensor, the first mounting plate is provided with a wire passing hole, the electric connecting wire penetrates through the wire passing hole, and an elastic shielding part surrounding the periphery of the electric connecting wire is arranged in the wire passing hole.

In some embodiments, the two heat exchangers are arranged obliquely relative to the gravity direction, and the distance between the two heat exchangers is gradually increased along the gravity direction, wherein the first direction is perpendicular to the gravity direction.

In some embodiments, the heat exchange assembly further comprises a second enclosure structure located on opposite sides of the heat exchange module along the first direction and the first enclosure structure, the second enclosure structure is connected to the heat exchange module, one side of the second enclosure structure away from the heat exchange module is used for abutting the housing, and the heat exchange module, the second enclosure structure and the housing enclose a second monitoring cavity.

In a second aspect, an embodiment of the present application provides an indoor unit, including:

The shell is provided with an air inlet and an air outlet, and the air inlet and the air outlet are respectively positioned at two opposite sides of the shell along a third direction, wherein the first direction is perpendicular to the third direction;

A first water receiving disc which is positioned in the shell and is positioned at one side of the air inlet of the shell along a third direction, and

As described above, the heat exchange assembly is disposed at the upper end of the first water-receiving tray along the third direction.

In some embodiments, the distance between the refrigerant sensor and the first water receiving disc along the third direction is h, wherein h is 50 mm-70 mm.

In some embodiments, the heat exchange module comprises two heat exchangers distributed at intervals along the second direction, the two heat exchangers are obliquely arranged relative to the gravity direction, the distance between the two heat exchangers is gradually increased along the gravity direction, and a ventilation opening is formed on one side of the two heat exchangers, which is close to the air inlet;

the first water receiving disc is surrounded to form a ventilation channel;

wherein, vent, ventilation channel and air intake are along third direction intercommunication.

In some embodiments, the first water receiving tray is formed with an annular water receiving tank, the water receiving tank comprises two first water receiving tanks which are oppositely arranged along a first direction and two second water receiving tanks which are oppositely arranged along a second direction, the first water receiving tanks are communicated with the second water receiving tanks, the two heat exchangers are respectively arranged on the two corresponding second water receiving tanks, a water outlet is formed in the first water receiving tanks which are positioned on the same side of the heat exchange module along the first direction, and the first direction, the second direction and the third direction are perpendicular to each other.

In some embodiments, the bottom surface of the first water receiving tank includes a water guiding surface connected to the water outlet, the water guiding surface gradually descending along the gravity direction from a side of the water guiding surface away from the water outlet to a side of the water guiding surface close to the water outlet.

In a third aspect, an embodiment of the present application provides a heating ventilation system, including:

A compressor;

An indoor unit as described above;

an outdoor unit;

throttle assembly, compressor, indoor set, throttle assembly and off-premises station communicate in proper order

The heat exchange assembly comprises a heat exchange module, the heat exchange module comprises a heat exchanger, the heat exchanger comprises a heat exchange tube, the heat exchange tube comprises straight tube sections and bent tube sections which are sequentially and alternately connected along the extending direction of the heat exchange tube, the heat exchange module, the first coaming structure and the shell enclose a first monitoring cavity, and therefore the first monitoring cavity can accommodate refrigerant leaked at the joint of the straight tube sections and the bent tube sections of the heat exchange tube, the concentration of the refrigerant in the first monitoring cavity is increased, and the first refrigerant sensor can accurately identify the refrigerant, so that the stability of a product is improved.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a heating and ventilation system according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of an indoor unit according to an embodiment of the present application;

fig. 3 is a schematic structural view illustrating another view angle of the indoor unit shown in fig. 2 according to the present application;

Fig. 4 is a schematic structural view illustrating a further view angle of the indoor unit shown in fig. 2 according to the present application;

Fig. 5 is a schematic structural diagram of a heat exchanger according to an embodiment of the present application;

Fig. 6 is a schematic structural diagram of a heat exchange assembly according to an embodiment of the present application;

FIG. 7 is a schematic view of a first view of the heat exchange assembly of FIG. 6 according to the present application;

FIG. 8 is a schematic view of a second view of the heat exchange assembly of FIG. 6 according to the present application;

FIG. 9 is an enlarged schematic view of the portion A of FIG. 8 according to the present application;

FIG. 10 is a schematic view of a third view of the heat exchange assembly of FIG. 6 according to the present application;

FIG. 11 is an enlarged schematic view of the structure of the portion B of FIG. 10 according to the present application;

FIG. 12 is a schematic view of a fourth view of the heat exchange assembly of FIG. 6 according to the present application;

FIG. 13 is a schematic cross-sectional view of the thermal assembly of FIG. 12 taken along the line M-M in accordance with the present application;

FIG. 14 is a schematic view of a fifth view of the heat exchange assembly of FIG. 5 according to the present application;

FIG. 15 is a schematic cross-sectional view of the heat exchange assembly of FIG. 14 taken along line N-N in accordance with the present application;

fig. 16 is a schematic structural view of a first water-receiving tray and a second water-receiving tray according to an embodiment of the present application;

FIG. 17 is an enlarged schematic view of the structure of portion C of FIG. 16 in accordance with the present application;

Fig. 18 is a schematic view of a sixth view of the heat exchange assembly of fig. 5 according to the present application.

Description of the drawings:

1. An indoor unit;

1000. a heat exchange assembly;

100. The heat exchange device comprises a heat exchange module, a heat exchanger, 110a, a ventilation opening, 111, a heat exchange tube, 1111, a straight tube section, 1112, a bent tube section, 120, a first mounting plate, 120a, a wire passing hole, 123, an elastic shielding part and 130, and a second mounting plate;

200. a first refrigerant sensor;

320. 330, the second heat exchange header pipe;

600. A branch pipe;

700. A refrigerant distributing pipe 710, a collecting pipe 720 and a capillary tube;

800. A first coaming structure; 800a, a first monitoring cavity, 800b, a capacity expansion cavity, 810, a first side coaming, 811, a first body, 812, a first vertical edge, 820, a sealing plug, 820a, a first pipe hole, 820b and a second pipe hole;

900. A second coaming structure 900a, a second monitoring cavity 910, a second side coaming;

2000. 2000a, air inlet, 2000b, air outlet;

3000. 3000a, a ventilation channel, 3000b, a water receiving tank, 3100b, a first water receiving tank, 3200b, a second water receiving tank, 3100, a water outlet, 3200 and a water guide surface;

4000. a blower;

5000. a second water receiving tray;

2. a compressor;

3. an outdoor unit;

4. A throttle assembly;

5. A four-way valve;

First direction XX, second direction YY, third direction ZZ, first central plane JJ, second central plane KK.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

Referring to fig. 1, an embodiment of the present application provides a heating and ventilation system, which includes a system for heating or cooling, such as an air conditioner, a multi-split air conditioner, and a heat pump, which is not limited in this embodiment of the present application.

The heating and ventilation system comprises a compressor 2, an indoor unit 1, an outdoor unit 3 and a throttling component 4, wherein the compressor 2, the outdoor unit 3, the throttling component 4 and the indoor unit 1 are sequentially communicated. The compressor 2 is used for compressing a refrigerant, the indoor unit 1 and the outdoor unit 3 are used for realizing heat exchange between the refrigerant and the outside, and the throttling component 4 is used for playing a role in throttling and reducing pressure.

The throttle assembly 4 may be any throttle assembly 4 in the related art. For example, the throttle assembly 4 may be an electronic expansion valve, a throttle valve, or the like, which is not limited thereto. And the heating and ventilation system has a refrigerating mode and a heating mode.

In the refrigeration mode, the compressor 2 outputs a high-temperature high-pressure gaseous refrigerant, the high-temperature high-pressure gaseous refrigerant is transmitted to the outdoor unit 3 and is changed into a high-pressure normal-temperature liquid refrigerant after condensation heat exchange, the high-pressure normal-temperature liquid refrigerant is further transmitted to the throttling component 4 and is changed into a low-temperature low-pressure gas-liquid mixed state refrigerant after throttling and depressurization, then the low-temperature low-pressure gas-liquid mixed state refrigerant enters the indoor unit 1 and is changed into a low-temperature low-pressure gaseous refrigerant after evaporation heat exchange, and finally the low-temperature low-pressure gaseous refrigerant flows back to the compressor 2 to complete a complete refrigeration cycle.

In the heating mode, the compressor 2 outputs a high-temperature high-pressure gaseous refrigerant, the high-temperature high-pressure gaseous refrigerant is transmitted to the indoor unit 1 and is changed into a high-pressure normal-temperature liquid refrigerant after condensation heat exchange, the high-pressure normal-temperature liquid refrigerant is further transmitted to the throttling component 4 and is changed into a low-temperature low-pressure gas-liquid mixed state refrigerant after throttling and depressurization, then the low-temperature low-pressure gas-liquid mixed state refrigerant enters the outdoor unit 3 and is changed into a low-temperature low-pressure gaseous refrigerant after evaporation heat exchange, and finally the low-temperature low-pressure gaseous refrigerant flows back to the compressor 2 to complete a complete heating cycle.

It should be noted that the heating and ventilation system may further include a four-way valve 5, where the four-way valve 5 is used to switch the forward and reverse directions of the refrigerant. For example, in the cooling mode, the refrigerant flow path is compressor 2-four-way valve 5-outdoor unit 3-throttle unit 4-indoor unit 1-four-way valve 5-compressor 2, while in the heating mode, the refrigerant flow path is compressor 2-four-way valve 5-indoor unit 1-throttle unit 4-outdoor unit 3-four-way valve 5-compressor 2.

When the heating and ventilation system is in operation or standby, the heat exchanger 110 may generate refrigerant leakage due to the influence of the tightness of the refrigerant, and the refrigerant leakage may reduce the heat exchange efficiency of the air conditioner and easily cause potential safety hazard. Therefore, the refrigerant sensor is used for monitoring whether the refrigerant leaks or not, so that related personnel can process the leakage condition in time. The pipelines outside the indoor unit 1 and the outdoor unit 3 are exposed to the distribution influence of the pipelines of the whole heating and ventilation system, so that the pipelines are easily diffused into the air when the refrigerant leaks, the monitoring precision of the refrigerant sensor is influenced, and the pipelines are easily diffused into the air when the refrigerant leaks because the outdoor unit 3 is positioned outdoors, so that the monitoring precision of the refrigerant sensor is influenced, and the refrigerant sensor is generally arranged in the indoor unit 1.

Based on this, referring to fig. 2 to 4, an embodiment of the present application provides an indoor unit 1, which includes a housing 2000, a first water pan 3000, a heat exchange assembly 1000, and a blower 4000. The indoor unit 1 has two use states, one is vertical and the other is horizontal, and in the embodiment of the present application, the indoor unit 1 is first described as a vertical type.

The casing 2000 is used as an appearance member of the indoor unit 1 and is used for protecting parts inside the indoor unit 1, the casing 2000 is provided with an air inlet 2000a and an air outlet 2000b, the air inlet 2000a and the air outlet 2000b are respectively positioned at two opposite sides of the casing 2000 along the third direction ZZ, and an external space enters through the air inlet 2000a and is discharged through the air outlet 2000b after exchanging heat with the heat exchange assembly 1000.

The blower 4000 is used for accelerating the flow rate of the external air passing through the air inlet 2000a and the air outlet 2000b, so as to increase the heat exchange capacity of the external air and the heat exchange assembly 1000;

a first water pan 3000, located in the housing 2000, for receiving condensed water generated by the heat exchange assembly 1000 during operation;

The heat exchange assembly 1000, the heat exchange assembly 1000 is used for exchanging heat with the external air entering from the air inlet 2000 a. The heat exchange assembly 1000 includes a heat exchange module 100, the heat exchange module 100 includes a heat exchanger 110, the heat exchanger 110 includes a heat exchange tube 111, and the heat exchange tube 111 is used for conducting a refrigerant. The refrigerant circulates inside the heat exchange tube 111 and is adaptively evaporated or condensed to cool or heat the air. Specifically, during air conditioning refrigeration, the refrigerant evaporates and absorbs heat in the heat exchange tube 111 of the heat exchange assembly 1000, thereby absorbing indoor heat and reducing indoor temperature. When the air conditioner heats, the refrigerant condenses and releases heat in the heat exchange tube 111 of the heat exchange assembly 1000, thereby releasing heat in the room and increasing the indoor temperature.

In some implementations, referring to fig. 5-6, the heat exchange tube 111 includes straight tube sections 1111 and curved tube sections 1112 alternately connected in sequence along an extension direction thereof, the straight tube sections 1111 being distributed along a first direction XX, the curved tube sections 1112 being located on one side of the straight tube sections 1111 along the first direction XX.

The connection of the bend section 1112 to the straight section 1111 is typically welded or connected by a pipe connector, and the applicant has found that the refrigerant leaks more easily at the connection of the bend section 1112 to the straight section 1111, thereby reducing the heat exchange efficiency of the heat exchanger 110 and easily causing a safety hazard.

Therefore, in the embodiment of the present application, referring to fig. 6, the heat exchange assembly 1000 further includes a first coaming structure 800 and a first refrigerant sensor 200, the first coaming structure 800 is located on one side of the heat exchange module 100 along the first direction XX and is connected to the heat exchange module 100, one side of the first coaming structure 800 away from the heat exchange module 100 is used for abutting against the housing 2000, and the heat exchange module 100, the first coaming structure 800 and the housing 2000 enclose a first monitoring cavity 800a. That is, the first monitoring cavity 800a can surround the connection part between the straight pipe section 1111 and the bent pipe section 1112 of the heat exchange pipe 111, so that the refrigerant leaked from the connection part between the straight pipe section 1111 and the bent pipe section 1112 can be accumulated in the first monitoring cavity 800a and cannot be scattered to other places of the indoor unit 1, so that the concentration of the refrigerant in the first monitoring cavity 800a is increased, the first refrigerant sensor 200 positioned in the first monitoring cavity 800a can monitor the refrigerant faster and more accurately, the reliability of refrigerant monitoring is effectively improved, related personnel can process the refrigerant leakage condition in time, and the continuous normal operation of the heat exchange assembly 1000 is ensured.

On the other hand, in the embodiment of the present application, the first refrigerant sensor 200 is connected with the heat exchange module 100, and the first refrigerant sensor 200 and the heat exchange module 100 are assembled in the production stage, so that the subsequent steps of separately installing the first refrigerant sensor 200 are reduced, the overall production cycle is shortened, and the production efficiency is improved, and meanwhile, the first refrigerant sensor 200 is directly installed on the heat exchange module 100, so that the structural characteristics of the heat exchange module 100 itself can be used as a positioning reference, and the installation position and the angle of the first refrigerant sensor 200 are ensured to be accurate. The design reduces performance deviation or fault risk caused by improper field installation, and improves the reliability and stability of the product.

It will be appreciated that referring to fig. 5-6, the straight tube sections 1111 and the curved tube sections 1112 of the heat exchange tube 111 are all provided with a plurality of straight tube sections 1111 distributed along the first direction XX, the first direction XX is the front-rear direction with reference to the orientation shown in fig. 6, part of the curved tube sections 1112 is located on the front side of the first direction XX, and the rest of the curved tube sections 1112 is located on the rear side of the first direction XX, so that refrigerant leakage is liable to occur on the front side and the rear side of the first direction XX, and in the embodiment of the present application, referring to fig. 7-8, a second coaming structure 900 may be further provided, where the second coaming structure 900 and the first coaming structure 800 are disposed on the front side, and the second coaming structure 900 is disposed on the rear side, respectively on both sides of the heat exchange module 100 in the first direction XX, where the first coaming structure 800 is disposed on the front side, and in some other embodiments, the second coaming structure 900 is disposed on the front side, and the rear side is illustratively described.

The second coaming structure 900 has the same function as the first coaming structure 800, wherein the second coaming structure 900 is connected with the heat exchange module 100, one side, away from the heat exchange module 100, of the second coaming structure 900 is abutted against the housing 2000, and the heat exchange module 100, the second coaming structure 900 and the housing enclose a second monitoring cavity 900a, so that the refrigerant leaked at the rear side is also contained in the second monitoring cavity 900a, and the refrigerant can be prevented from scattering.

In order to quickly monitor the refrigerant leaked from the second monitoring cavity 900a, the embodiment of the application is further provided with a second refrigerant sensor (not shown in the figure), and the second refrigerant sensor is arranged in the second monitoring cavity 900a, so that the refrigerant can be monitored more quickly and accurately, the reliability of refrigerant monitoring can be effectively improved by matching with the first refrigerant sensor in the first monitoring cavity 800a, the condition of refrigerant leakage can be timely handled by related personnel, and the continuous normal operation of the heat exchange assembly 1000 is ensured.

Meanwhile, since the refrigerant is heavier than air, after the refrigerant leaks, the leaked refrigerant will move to the lower side under the influence of gravity, specifically, the leaked refrigerant in the first monitoring cavity 800a will sink to the bottom end of the first monitoring cavity 800a under the action of gravity, and the leaked refrigerant in the second monitoring cavity 900a will sink to the bottom end of the second monitoring cavity 900a under the action of gravity, so in the embodiment of the application, please continue to refer to fig. 6, the first refrigerant sensor is located at the bottom end of the first monitoring cavity 800a along the gravity direction, and the second refrigerant sensor is located at the bottom end of the second monitoring cavity 900a along the gravity direction, so that the first refrigerant sensor and the second refrigerant sensor can both ensure the accuracy and timeliness of monitoring the leaked refrigerant.

For convenience in describing and understanding the specific structure of the heat exchange assembly 1000, the first direction XX and the second direction YY are defined, and the orientation shown in fig. 6 is referred to as a front-back direction, and the second direction YY is a left-right direction. That is, the direction of the first direction XX may be determined according to the situation of the actual use, and some embodiments of the present application will be described by taking the first direction XX as the front-back direction.

Referring to fig. 6, the heat exchange module 100 includes at least two heat exchangers 110 and a first mounting plate 120 connected between two adjacent heat exchangers 110, the at least two heat exchangers 110 are spaced apart along a second direction YY, the second direction YY is perpendicular to a first direction XX, the first mounting plate 120 is disposed at one side of the heat exchangers 110 along the first direction XX, and the first refrigerant sensor 200 is mounted on the first mounting plate 120.

The heat exchange area of the at least two heat exchangers 110 can be effectively increased, so that the heat exchange efficiency of the whole heat exchange module 100 is improved, and the arrangement of the heat exchange assembly 1000 can be more compact due to the fact that the second direction YY is perpendicular to the first direction XX, and the first mounting plate 120 not only can connect the two adjacent heat exchangers 110, but also can ensure the stability of the structure of the whole heat exchange module 100 after connection.

In addition, the first mounting plate 120 can give the mounting position of the first refrigerant sensor 200, so that the heat exchange module 100 is designed in a modularized structure, the subsequent step of independently mounting the first refrigerant sensor 200 is reduced, the overall production period is shortened, and the production efficiency is improved, meanwhile, the first refrigerant sensor 200 is directly mounted on the heat exchange module 100, and the structural characteristics of the heat exchange module 100 can be used as a positioning reference, so that the mounting position and the angle of the first refrigerant sensor 200 are ensured to be accurate. The design reduces performance deviation or fault risk caused by improper field installation, and improves the reliability and stability of the product.

In particular, referring to fig. 6-8, the heat exchange module 100 includes two heat exchangers 110, where the two heat exchangers 110 are disposed obliquely with respect to the direction of gravity, and the distance between the two heat exchangers 110 is gradually increased along the direction of gravity, so that the heat exchangers 110 are disposed obliquely and combined with the design that the distance is gradually increased, which is beneficial for forming more uniform and efficient heat exchange when the air flows through the heat exchangers 110. This design allows the air flow to more fully contact the surface of the heat exchanger 110 during the flow process, thereby improving heat transfer efficiency and increasing the heating or cooling rate of the indoor air.

Further, referring to fig. 7-8, the heat exchange module 100 in the embodiment of the present application further includes a second mounting plate 130, where the second mounting plate 130 and the first mounting plate 120 are respectively located at two sides of the straight pipe section 1111 of the heat exchange pipe 111 along the first direction XX, the second mounting plate 130 is also connected to two adjacent heat exchangers 110, and the second mounting plate 130 can cooperate with the first mounting plate 120, so that two adjacent heat exchangers 110 can be connected more stably, and in addition, the second mounting plate 130 can also give the mounting position of the second refrigerant sensor.

In the indoor unit 1, the leaked refrigerant may have a certain potential safety hazard, such as refrigerant deflagration, so when the first refrigerant sensor 200 detects the leaked refrigerant, a signal needs to be transmitted to the controller, and the rotational speed of the fan can be controlled and increased by the controller, so that the refrigerant converted into a gas state can be discharged from the air outlet along with external air.

In the embodiment of the present application, in order to ensure stable signal transmission, an electrical connection wire (not shown) is used to connect, i.e. one end of the electrical connection wire is electrically connected to the first refrigerant sensor 200, and the other end is electrically connected to the controller.

In order to facilitate the routing of the electrical connection line, referring to fig. 8-9, the first mounting plate 120 is provided with the wire passing hole 120a, the electrical connection line passes through the wire passing hole 120a, and in order to reduce the possibility that the refrigerant leaked from the front end along the first direction XX leaks from the wire passing hole 120a to other places, thereby reducing the concentration of the refrigerant at the bottom end of the heat exchange module 100, further affecting the accuracy and the effectiveness of the first refrigerant sensor 200 in monitoring the leaked refrigerant, so in the embodiment of the application, the elastic shielding part 123 surrounding the periphery of the electrical connection line is arranged in the wire passing hole 120a, and the elastic shielding part 123 can tightly wrap the electrical connection line, thereby effectively reducing the possibility that the refrigerant leaked from the front end along the first direction XX can be accumulated under the action of gravity, thereby improving the concentration of the refrigerant, and being accurately and rapidly monitored by the first refrigerant sensor 200.

The elastic shielding portion 123 may be one or more, and may cover at least a partial area of the cross section of the via hole 120a, and since the elastic shielding portion 123 has elasticity, when the electrical connection wire passes through the elastic shielding portion 123, the elastic shielding portion 123 may be attached to the electrical connection wire, thereby further reducing the possibility of the leaked refrigerant flowing from the via hole 120a to another place.

Specifically, the elastic shielding portion 123 may be made of rubber, silicone or other elastic materials in the prior art, which will not be explained in detail herein.

Referring to fig. 10, specifically, the first coaming structure 800 includes two first coaming plates 810, the two first coaming plates 810 are respectively installed on sides of the two heat exchangers 110 along the edge in the second direction YY, which are away from each other, and the sides of the two first coaming plates 810 away from the heat exchangers are abutted against the housing 2000, and the first coaming plates 810, the heat exchangers 110, the first mounting plate 120 and the housing 2000 enclose a first monitoring cavity 800a, that is, when a plurality of heat exchangers 110 are used, only two first coaming plates 810, the heat exchangers 110 and the housing 2000 need to be formed, so that the manufacturing cost is reduced, and it is ensured that the first monitoring cavity 800a has enough space to be provided with other parts, thereby enhancing the flexibility of the installation layout of the whole indoor unit 1.

In addition, the first side wall plate 810 not only serves as a boundary separating the first monitoring chamber 800a, but also serves to enhance the overall structural stability. The close fit of the first side wall 810 to the housing 2000 and the support of the heat exchanger 110 together form a stable frame that helps to resist external shock and vibration and extend the service life of the apparatus.

Similarly, the second side wall structure 900 may include two second side walls 910, and the second side wall 910 may function the same as the first side wall 810, and the connection and function of the second side wall 910 will not be further explained herein.

Referring to fig. 11, the first side wall plate 810 includes a first body 811 and a first standing edge 812 formed by bending two ends of the first body 811 along the first direction XX, the first standing edge 812 adjacent to the heat exchanger 110 is connected to the heat exchanger 110, and the first standing edge 812 far from the heat exchanger 110 is used for abutting against the housing 2000.

Based on the fact that the first side wall plate 810 needs to be connected to the heat exchanger 110 and the abutting against the housing 2000, in order to ensure the stability of connection, referring to fig. 11, the first side wall plate 810 includes a first body 811 and a first standing edge 812, and the first standing edge 812 is formed by bending from the first body 811, so that the rigidity and strength of the whole first side wall plate 810 are increased.

It can be appreciated that the first side wall 810 may be formed by bending two ends of the first body 811 along the first direction XX, or may be formed by bending a plurality of sides to form a plurality of first standing edges 812, and specifically, according to practical situations, in the embodiment of the present application, the first standing edges 812 and the first body 811 are approximately at an included angle of 90 degrees, so that the first standing edges 812 adjacent to the housing can be attached to the housing 2000, thereby increasing the contact area between the entire first side wall 810 and the housing, and further improving the stability of the first side wall 810.

In addition, the first standing edge 812 can also provide a sufficient installation area to provide connection between the fastener and the housing, and meanwhile, due to the increased contact area between the whole first side wall 810 and the housing, the possibility of leakage of the refrigerant in the first monitoring cavity 800a from the connection between the first side wall 810 and the housing 2000 can be reduced, so that the accuracy and timeliness of the first refrigerant sensor 200 in monitoring the refrigerant are further ensured.

With continued reference to fig. 10, the heat exchange assembly 1000 includes a first heat exchange manifold 320 and a second heat exchange manifold 330, where the first heat exchange manifold 320, the second heat exchange manifold 330 and the heat exchange tubes 111 are in communication to form a refrigerant flow path, and the first heat exchange manifold 320 and the second heat exchange manifold 330 may be refrigerant inlet tubes and may be refrigerant outlet tubes, and it is understood that when the first heat exchange manifold 320 is a refrigerant inlet tube, the second heat exchange manifold 330 is a refrigerant outlet tube, and when the first heat exchange manifold 320 is a refrigerant outlet tube, the second heat exchange manifold 330 is a refrigerant inlet tube.

In order to make the internal space of the whole indoor unit 1 reasonably distributed, i.e. to make the layout of the first heat exchange manifold 320 and the second heat exchange manifold 330 compact with the heat exchanger 110, the first heat exchange manifold 320 and the second heat exchange manifold 330 need to pass through the first side wall 810 to be communicated with the pipes of the whole heating and ventilation system. In the embodiment of the present application, referring to fig. 10, at least one opening is formed on one first side wall plate 810 of the two first side wall plates 810, a sealing plug 820 is embedded in the opening, and a first tube hole 820a for inserting the first heat exchange manifold 320 and a second tube hole 820b for inserting the second heat exchange manifold 330 are formed in the sealing plug 820.

It can be understood that one first side wall plate 810 is provided with an opening, the other first side wall plate 810 is provided with an opening, the first heat exchange manifold passes through the opening of the first side wall plate 810, the second heat exchange manifold passes through the opening of the other first side wall plate 810, or the first side wall plate 810 is provided with two openings, and the other first side wall plate 810 is not provided with an opening. In the present embodiment, two openings are illustratively provided in a first side wall 810 for ease of manufacture and ease of communication with the plumbing of the heating and ventilation system.

Further, in order to reduce the leakage refrigerant flowing out of the first monitoring cavity 800a through the opening, thereby affecting the accuracy and effectiveness of the first refrigerant sensor 200 in monitoring the refrigerant, referring to fig. 10, in the embodiment of the present application, a sealing plug 820 is embedded in the opening, and a first tube hole 820a for plugging the first heat exchange manifold 320 and a second tube hole 820b for plugging the second heat exchange manifold 330 are formed in the sealing plug 820.

The sealing plug 820 can be made of rubber or silica gel, so that when the first heat exchange manifold 320 and the second heat exchange manifold 330 pass through the sealing plug 820, the sealing plug 820 can be tightly attached to the peripheries of the first heat exchange manifold 320 and the second heat exchange manifold 330, and the possibility of refrigerant leakage of the first monitoring cavity 800a is reduced. When two openings are formed in one first side wall plate 810, two sealing plugs 820 are correspondingly provided, wherein one sealing plug 820 is provided with a first pipe passing hole 820a, and the other sealing plug 820 is provided with a second pipe passing hole 820b.

In other embodiments, an opening may be formed in a first side wall 810, in which a sealing plug 820 is disposed, and the sealing plug 820 is provided with a first via hole 820a and a second via hole 820b.

Referring back to fig. 6, at least one first side wall plate 810 of the two first side wall plates 810 bulges away from the first monitoring cavity 800a and forms a capacity expansion cavity 800b communicated with the first monitoring cavity 800a, so that by means of the capacity expansion cavity 800b, sufficient space can be ensured to meet the requirement that the first heat exchange manifold 320 is connected with the heat exchange tube 111 and the second heat exchange manifold 330 is connected with the heat exchange tube 111, and in addition, the space of the indoor unit 1 can be fully utilized, so that the structural layout of the whole indoor unit 1 is more compact and the space utilization is more reasonable.

The expansion cavity 800b may be formed by the first side wall plate 810 rising from the first monitoring cavity 800a, or may be formed by a hole formed in the first side wall plate 810, and a cover shell embedded in the hole, or may be fixed in the hole by a fixed connection manner such as a bolt, etc., and it should be understood that when the cover shell is arranged, a sealing ring needs to be arranged between the first side wall plate 810 and the cover shell to ensure an excellent sealing effect.

In an embodiment of the present application, referring to fig. 10, the heat exchange assembly 1000 further includes a plurality of branch pipes 600 and a refrigerant distribution pipe 700, wherein the plurality of branch pipes 600 and the refrigerant distribution pipe 700 are located in the first monitoring chamber 800 a.

It will be appreciated that, in order to improve the heat exchange efficiency, the heat exchanger 110 generally includes a plurality of heat exchange tubes 111, each branch tube 600 is connected to one end of each heat exchange tube 111, and the other end of each branch tube 600 is connected to the first heat exchange manifold 320, and the refrigerant distribution tube 700 includes a header 710 and a plurality of capillaries 720, wherein one end of each capillary tube 720 is connected to the other end of each heat exchange tube 111, the other end of each capillary tube 720 is connected to the header 710, and the header 710 is connected to the second heat exchange manifold 330. In this way, the refrigerant can be ensured to be uniformly distributed among the plurality of heat exchange tubes 111, and the uniform refrigerant distribution helps to improve the heat exchange efficiency, reduce the temperature gradient in the heat exchange process, and improve the heat exchange performance of the whole heat exchange module 100.

Based on the fact that the plurality of branch pipes 600 need to be connected with the plurality of heat exchange tubes 111, under the condition that refrigerant leakage may exist at the connection position of the branch pipes 600 and the heat exchange tubes 111, in the embodiment of the application, the plurality of branch pipes 600 and the refrigerant distribution pipe 700 are all located in the first monitoring cavity 800a, so that after the refrigerant leaked at the connection position of the branch pipes 600 and the heat exchange tubes 111 sinks to the bottom end of the first monitoring cavity 800a under the action of gravity, the first refrigerant sensor 200 can quickly and accurately monitor the leaked refrigerant, so that related personnel can timely process the refrigerant leakage condition, and the continuous normal operation of the heat exchange assembly 1000 is ensured.

Similarly, based on the fact that the plurality of capillaries 720 are required to be connected with the plurality of heat exchange tubes 111, under the condition that refrigerant leakage may exist at the connection position of the capillaries 720 and the heat exchange tubes 111, after the refrigerant leaked at the connection position of the capillaries 720 and the heat exchange tubes 111 sinks to the bottom end of the first monitoring cavity 800a under the action of gravity, the first refrigerant sensor 200 can rapidly and accurately monitor the leaked refrigerant, so that related personnel can timely process the refrigerant leakage condition, and the continuous normal operation of the heat exchange assembly 1000 is ensured.

In the embodiment of the application, the indoor unit 1 has two use states of vertical and horizontal, so that the indoor unit can adapt to various application scenes. Since the indoor units 1 are used in different states, there is also a difference in the position setting of the water receiving tray with respect to the indoor units 1. In some embodiments, referring to fig. 2-4, the first water tray 3000 is located in the housing 2000 and is located on a side of the air inlet 2000a of the housing 2000 along the third direction ZZ, which is the vertical state, and the third direction ZZ is the same as the gravity direction, and the first water tray 3000 can receive the condensed water generated by the heat exchange assembly 1000 during operation and can also receive the leaked refrigerant sinking under the action of gravity.

In addition, referring back to fig. 2 to 4, the indoor unit 1 further includes a second water receiving tray 5000 to cope with the horizontal usage state of the indoor unit 1, and it can be understood that the second water receiving tray 5000 has the same function as the first water receiving tray 3000.

In the embodiment of the present application, the second water-receiving tray 5000 is communicated with the first water-receiving tray 3000, and the second water-receiving tray 5000 is disposed on one side of the heat exchange assembly 1000 along the second direction YY, where the second direction YY is the same as the above second direction YY, and the description thereof is omitted. The second direction YY is perpendicular to the first direction XX and the third direction ZZ. Referring to the orientations of fig. 9 to 10, the first direction XX may be a front-rear direction, the second direction YY may be a left-right direction, and the third direction ZZ may be an up-down direction.

The specific arrangement position of the second water receiving tray 5000 will be described below. The second water receiving tray 5000 is disposed on one side of the heat exchange assembly 1000 along the second direction YY. Referring to the orientation of fig. 10 (the indoor unit 1 is in the upright use state), the second water receiving tray 5000 may be disposed on the left side of the heat exchange assembly 1000 in the left-right direction, or may be disposed on the right side of the heat exchanger 110 in the left-right direction, and some embodiments of the present application will be described by taking the example in which the second water receiving tray 5000 is disposed on the right side of the heat exchange assembly 1000 in the left-right direction. It can be understood that, when the indoor unit 1 is in the horizontal use state, the second water receiving tray 5000 is located at the lower side of the indoor unit 1 along the gravity direction, and at this time, the second direction YY is the gravity direction, and the at least two heat exchangers 110 are distributed at intervals along the third direction ZZ.

According to the scheme, the first water receiving disc 3000 and the second water receiving disc 5000 are arranged, namely, no matter whether the indoor unit 1 is used vertically or horizontally, the condensed water is contained in the water receiving disc, the waterproof performance of the indoor unit 1 can be guaranteed, and the application range of the indoor unit 1 is enlarged.

In the vertical use, the condensed water and the leaked refrigerant will sink under the action of gravity and be deposited on the first water receiving disc 3000, in order to avoid the first refrigerant sensor 200 from soaking in the condensed water and the liquid refrigerant, please refer to fig. 12-13, so in the embodiment of the present application, the distance between the first refrigerant sensor 200 and the first water receiving disc 3000 along the third direction ZZ is h, where h is more than or equal to 50mm and less than or equal to 70mm, i.e. h may be 50mm, 55mm, 60mm, 65mm, 70mm or any two of these ranges, so that the first refrigerant sensor 200 can be prevented from soaking in water, thereby ensuring the accuracy and timeliness of the monitoring of the first refrigerant sensor 200.

Specifically, the heat exchange module 100 includes two heat exchangers 110 opposite along the second direction YY, where the two heat exchangers 110 are obliquely disposed with respect to the gravity direction, and the distance between the two heat exchangers 110 is gradually increased along the gravity direction, and the third direction ZZ is along the gravity direction when the indoor unit 1 is in the upright state. In the horizontal state of the indoor unit 1, the second direction YY is along the gravity direction, it can be understood that when the indoor unit 1 is in the horizontal state, the heat module 100 rotates 90 ° clockwise relative to the heat exchange module 100 in fig. 8, and rotates 90 ° counterclockwise relative to the heat exchange module 100 in fig. 10, at this time, the two heat exchangers 110 are still obliquely arranged relative to the gravity direction, and the distance between the two heat exchangers 110 is gradually increased along the gravity direction, and the end with the larger distance corresponds to the second water receiving tray 5000.

Referring to fig. 14-15, two heat exchangers 110 form a ventilation opening 110a at a side close to the air inlet 2000a, the first water pan 3000 encloses a ventilation channel 3000a, and the ventilation opening 110a, the ventilation channel 3000a and the air inlet 2000a are communicated along the third direction ZZ. The inclined arrangement of the heat exchanger 110 in combination with the progressively larger pitch facilitates a more uniform and efficient heat exchange of the air flow as it passes through the heat exchanger 110. This design allows the air flow to more fully contact the surface of the heat exchanger 110 during the flow process, thereby improving heat transfer efficiency and increasing the heating or cooling rate of the indoor air.

Due to the inclination and the change of the spacing of the heat exchangers 110, the air flow entering the heat exchange module 100 can be naturally distributed more reasonably while being guided by the heat exchangers 110. The distribution is favorable for reducing air flow dead angles and improving the air circulation efficiency of the whole system, so that the heat exchange performance is further improved.

The ventilation channel 3000a formed around the first water pan 3000 communicates with the ventilation opening 110a and the air inlet 2000a along the third direction ZZ of the gravity direction, so as to improve the drainage performance. In the refrigeration mode, water droplets may condense on the surface of the heat exchanger 110, and the inclined heat exchanger 110 helps water droplets to quickly slide into the water receiving tray along the gravity direction, so that wind resistance and energy efficiency loss caused by water droplets retained on the heat exchanger 110 are reduced, and inconvenience caused by water droplets falling into an indoor space is avoided.

In order to support the heat exchangers 110 conveniently, referring to fig. 15 to 16, the first water receiving tray 3000 is formed with an annular water receiving groove 3000b, the water receiving groove 3000b includes two first water receiving grooves 3100b oppositely arranged along the first direction XX and two second water receiving grooves 3200b oppositely arranged along the second direction YY, the first water receiving grooves 3100b are communicated with the second water receiving grooves 3200b, and the two heat exchangers 110 are respectively mounted on the corresponding two second water receiving grooves 3200b. Connectivity of the first water receiving tank 3100b and the second water receiving tank 3200b further ensures uniform distribution and effective collection of condensed water in the whole water receiving tank 3000b, and avoids the problem of local ponding or unsmooth water flow.

The two heat exchangers 110 are installed in the corresponding two second water receiving tanks 3200b, the layout of the whole heat exchange assembly 1000 is optimized, the heat exchange assembly 1000 and the first water receiving tank 3000 are installed more compactly, condensed water on the heat exchangers 110 can flow into the second water receiving tank 3200b along the shell of the heat exchangers 110, condensed water of the bent pipe sections 1112 positioned at the front end and the rear end of the first direction XX can fall into the first water receiving tank 3000, leaked refrigerant can be received by the first water receiving tank 3000, the condensed water and the refrigerant can be prevented from flowing into a room through the communicated first water receiving tank 3100b and the second water receiving tank 3200b, meanwhile, the condensed water is uniformly distributed and effectively collected in the whole water receiving tank 3000b, and the problem of partial water accumulation or unsmooth water flow is avoided.

Since the bottom of the heat exchanger 110 is mounted in the second water receiving tank 3200b and occupies the middle of the second water receiving tank 3200b, the water outlet 3100 is provided in the first water receiving tank 3100b on the same side as the heat exchange module 100 as the first refrigerant sensor 200 in order to improve the water drainage smoothness, and the liquid refrigerant and the condensed water can be timely discharged through the water outlet 3100.

Referring to fig. 17, in order to quickly drain the liquid refrigerant and the condensed water in the first water receiving tank 3100b, in an embodiment of the application, referring to fig. 16 to 17, the bottom surface of the first water receiving tank 3100b includes a water guiding surface 3200 connected to the water outlet 3100, and the water guiding surface 3200 gradually descends along the third direction ZZ from a side of the water guiding surface 3200 away from the water outlet 3100 to a side of the water guiding surface adjacent to the water outlet 3100. The design of the water guiding surface 3200 enables the liquid in the first water receiving groove 3100b to rapidly flow to the water discharging opening 3100 along the water guiding surface 3200, thereby accelerating the water discharging process. This natural flow under gravity guidance reduces the time required for drainage and improves drainage efficiency.

In view of the fact that the indoor unit 1 also has a horizontal use state, at this time, the second water receiving tray 5000 is used for receiving the refrigerant and condensed water which sink under the action of gravity, so that the second water receiving tray 5000 can also drain the liquid in time, and the second water receiving tray 5000 also has the water guiding surface 3200, as shown in fig. 17, so that the water guiding surface 3200 gradually descends along the second direction YY from the side of the water guiding surface 3200 away from the water outlet 3100 to the side of the water outlet 3100, and the condensed water and the liquid refrigerant can also be drained rapidly through the water guiding surface 3200 of the second water receiving tray 5000.

It should be understood that, due to the water guiding surface 3200, the refrigerant will collect at the water outlet 3100, so the concentration of the refrigerant at the water outlet 3100 is the highest, and therefore, in order to improve the accuracy of monitoring the refrigerant, the first refrigerant sensor 200 is disposed at the water outlet 3100.

Specifically, when the indoor unit 1 is in the upright state, the first direction XX shown in fig. 18 is taken as a front-rear direction, the second direction YY is taken as a left-right direction, the third direction ZZ is taken as a gravity direction, the heat exchange module 100 is defined to have a first central plane JJ and a second central plane KK, the first central plane JJ and the second central plane KK are mutually perpendicular, the first central plane JJ is perpendicular to the third direction ZZ, the second central plane KK is perpendicular to the second direction YY, so that the first refrigerant sensor 200 is located at the lower side of the first central plane JJ and is located at the right side of the second central plane, and the water outlet 3100 is also located at the lower end of the first central plane JJ and is located at the right side of the second central plane KK.

When the indoor unit 1 is in the horizontal state, the first direction XX is the front-back direction, the second direction YY is the gravity direction, and the third direction ZZ is the left-right direction, and at this time, the indoor unit 1 is defined to have a first center plane JJ and a second center plane KK (which are consistent with the first center plane JJ and the second center plane KK in the foregoing), so that the first refrigerant sensor 200 is located at the lower side of the second center plane KK and is located at the left side of the first center plane JJ, and at this time, the drain port 3100 is also located at the lower side of the second center plane KK and is located at the left side of the first center plane JJ, and the first refrigerant sensor 200 can ensure accuracy and timeliness of refrigerant monitoring in the horizontal state of the indoor unit 1.

In the description of the present application, it should be understood that, if the terms "upper", "lower", "left", "right", etc. refer to the directions or positional relationships based on the drawings, only for convenience in describing the present application and simplifying the description, rather than indicating or implying that the referred devices or elements must have a specific direction, be constructed and operated in a specific direction, so that the terms describing the positional relationships in the drawings are merely for exemplary illustration and not to be construed as limitations of the present patent, and that the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.

The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application.

Claims (18)

1. A heat exchange assembly for placement within a housing of an indoor unit, comprising:

The heat exchange module comprises a heat exchanger, wherein the heat exchanger comprises heat exchange pipes, the heat exchange pipes comprise straight pipe sections and bent pipe sections which are sequentially and alternately connected along the extending direction of the heat exchange pipes, the straight pipe sections are distributed along a first direction, and the bent pipe sections are positioned on one side of the straight pipe sections along the first direction;

A first coaming structure positioned at one side of the heat exchange module along the first direction and connected with the heat exchange module, wherein one side of the first coaming structure away from the heat exchange module is used for abutting against the shell, the heat exchange module, the first coaming structure and the shell are enclosed into a first monitoring cavity, and

The first refrigerant sensor is connected with the heat exchange module and is positioned in the first monitoring cavity.

2. The heat exchange assembly of claim 1 wherein the first refrigerant sensor is located at a bottom end of the first monitoring chamber along a direction of gravity.

3. The heat exchange assembly of claim 1, wherein the heat exchange module comprises:

At least two heat exchangers spaced apart along a second direction perpendicular to the first direction, and

The first mounting plates are connected between two adjacent heat exchangers and are arranged on one side of the heat exchangers along the first direction;

wherein, first refrigerant sensor installs in first mounting panel.

4. A heat exchange assembly according to claim 3 wherein the first shroud structure comprises:

Two first side coamings, two first side coamings are installed respectively along two of the edge on the second direction the heat exchanger deviates from one another, and two first side coamings keep away from one side butt of heat exchanger the shell, first side coamings heat exchanger first mounting panel and the shell enclose into first monitoring chamber.

5. The heat exchange assembly of claim 4 further comprising a first heat exchange manifold and a second heat exchange manifold, the first heat exchange manifold, the second heat exchange manifold, and the heat exchange tubes communicating to form a refrigerant flow path;

At least one opening is formed in one of the two first side coamings, a sealing plug is embedded in the opening, and a first pipe passing hole for the first heat exchange main pipe to be inserted and a second pipe passing hole for the second heat exchange main pipe to be inserted are formed in the sealing plug.

6. The heat exchange assembly of claim 5 wherein at least one of the first side dams bulges away from the first monitoring chamber and forms a flash chamber in communication with the first monitoring chamber.

7. The heat exchange assembly of claim 5, further comprising:

The heat exchanger comprises a plurality of heat exchange pipes, each branch pipe is connected with one end of each heat exchange pipe, and the other end of each branch pipe is communicated with the first heat exchange main pipe;

Wherein the plurality of branch pipes are located in the first monitoring cavity.

8. The heat exchange assembly of claim 7, further comprising:

The refrigerant distributing pipe comprises a collecting pipe and a plurality of capillaries, one end of each capillary is connected with the other end of each heat exchange pipe, the other end of each capillary is connected with the collecting pipe, and the collecting pipe is communicated with the second heat exchange main pipe;

wherein, the refrigerant distributing pipe is located in the first monitoring cavity.

9. The heat exchange assembly of claim 4 wherein the first side wall plate comprises:

the first body and the first standing edges formed by bending the first body along the two ends of the first direction;

The first standing edge adjacent to the heat exchanger is connected with the heat exchanger, and the first standing edge far away from the heat exchanger is used for being abutted with the shell.

10. A heat exchange assembly according to claim 3, further comprising:

The electric connecting wire is electrically connected with the first refrigerant sensor, the first mounting plate is provided with a wire passing hole, the electric connecting wire penetrates through the wire passing hole, and an elastic shielding part surrounding the periphery of the electric connecting wire is arranged in the wire passing hole.

11. The heat exchange assembly of claim 3 wherein two of said heat exchangers are disposed obliquely to the direction of gravity and the spacing between said heat exchangers increases progressively along the direction of gravity, wherein said first direction is perpendicular to said direction of gravity.

12. The heat exchange assembly of claim 1 further comprising a second enclosure structure located on opposite sides of the heat exchange module along the first direction from the first enclosure structure, the second enclosure structure connecting the heat exchange module, a side of the second enclosure structure remote from the heat exchange module being adapted to abut the housing, the heat exchange module, the second enclosure structure and the housing enclosing a second monitoring chamber.

13. An indoor unit, comprising:

the shell is provided with an air inlet and an air outlet, and the air inlet and the air outlet are respectively positioned at two opposite sides of the shell along a third direction, wherein the first direction is perpendicular to the third direction;

a first water receiving disc positioned in the shell and positioned at one side of the shell where the air inlet is positioned along the third direction, and

The heat exchange assembly of any one of claims 1-12, wherein the heat exchange assembly is disposed at an upper end of the first drip tray along a third direction.

14. The indoor unit of claim 13, wherein a distance between the first refrigerant sensor and the first water pan along the third direction is h, and h satisfies that h is greater than or equal to 50mm and less than or equal to 70mm.

15. The indoor unit of claim 13, wherein the heat exchange module comprises two heat exchangers distributed at intervals along a second direction, the two heat exchangers are arranged obliquely relative to a gravity direction, a distance between the two heat exchangers is gradually increased along the gravity direction, and a ventilation opening is formed on one side of the two heat exchangers, which is close to the air inlet;

the first water receiving disc is surrounded to form a ventilation channel;

The ventilation opening, the ventilation channel and the air inlet are communicated along the third direction.

16. The indoor unit of claim 15, wherein the first water receiving tray is formed with an annular water receiving groove, the water receiving groove includes two first water receiving grooves oppositely arranged along the first direction and two second water receiving grooves oppositely arranged along the second direction, the first water receiving groove and the second water receiving groove are communicated, and the two heat exchangers are respectively installed in the two corresponding second water receiving grooves;

The first water receiving tank which is positioned on the same side of the heat exchange module with the first refrigerant sensor along the first direction is provided with a water outlet, wherein the first direction, the second direction and the gravity direction are mutually perpendicular.

17. The indoor unit of claim 16, wherein the bottom surface of the first water receiving tank includes a water guiding surface connected to the water discharge port, the water guiding surface gradually descending in the third direction from a side of the water guiding surface away from the water discharge port to a side near the water discharge port.

18. A heating ventilation system, comprising:

A compressor;

the indoor unit of any one of claims 13-17;

an outdoor unit;

And the compressor, the indoor unit, the throttling assembly and the outdoor unit are sequentially communicated.