WO2021082333A1

WO2021082333A1 - Ducted air conditioner

Info

Publication number: WO2021082333A1
Application number: PCT/CN2020/079498
Authority: WO
Inventors: 张标; 张荣海; 于德彤; 张文强
Original assignee: 青岛海信日立空调系统有限公司
Priority date: 2019-10-31
Filing date: 2020-03-16
Publication date: 2021-05-06

Abstract

A ducted air conditioner, comprising a housing (1), an upper thermal insulation member (2), a water receiving tray (3), at least one fan (5), and a heat exchanger (4). The housing (1) is used for forming a cavity; the upper thermal insulation member (2) is located in the housing (1) and is used for temperature insulation for the housing (1); the water receiving tray (3) is located in the housing (1), is used for receiving condensed water, is connected to the upper thermal insulation member (2), and partitions the cavity in the housing (1) into a first chamber and a second chamber that are independent of each other; the fan (5) is disposed in the first chamber and is used for supplying airflow into the second chamber; the heat exchanger (4) is disposed in the second chamber, is located between the water receiving tray (3) and the upper thermal insulation member (2), and is used for exchanging heat for the airflow supplied by the fan (5). In the ducted air conditioner, the number of parts and the number of screws used are reduced, the weight of the ducted air conditioner is reduced, the installation efficiency is improved, and the cost is lowered. The use of the upper thermal insulation member reduces energy loss and reduces the condensate generated outside the housing, thus improving the user experience.

Description

A kind of air duct machine

This application requires that it be submitted to the Chinese Patent Office on October 31, 2019. The application number is 201911053175.8 and the application name is "a kind of air duct machine"; the application number is 201921858814.3 and the application name is "a kind of air duct machine". The priority of, the entire content of which is incorporated in this application by reference.

Technical field

This application belongs to the technical field of air conditioning, and specifically relates to a duct machine.

Background technique

The current air conditioner indoor unit generally includes a shell, which includes a heat exchange unit and a fan unit; the fan unit is used to suck in air volume, which is a low static pressure area; the heat exchange unit is equipped with a heat exchanger, and the air volume sucked by the fan unit is blown into the heat exchange The unit passes through the heat exchanger, so that the suction air volume is discharged after heat exchange. The heat exchange unit is a high static pressure zone. The low static pressure zone and the high static pressure zone are separated by a middle partition plate, which is a flat structure and is fixedly connected to the shell by screws or welding. The fan unit also includes a motor and a motor bracket. The motor bracket is fixedly connected to the middle partition. The motor is also fixed on the motor bracket by means of screws. Due to the large number of screws, the assembly efficiency is affected.

Application content

The present application provides a duct machine, which improves the modularity of the duct machine assembly structure, reduces the number of duct machine parts and fastening screws, reduces manual consumption, and improves assembly efficiency; reduces energy loss and condensate generation; and reduces The weight of the air duct machine.

In order to solve the above technical problems, this application adopts the following technical solutions to achieve:

An air duct machine includes:

Shell, used to form a cavity;

The upper thermal insulation member, which is located in the shell, and is used to isolate the temperature of the shell;

A water receiving pan, which is located in the shell, is used for receiving condensed water, is connected with the upper heat insulating member, and divides the cavity in the shell into independent first and second cavities;

At least one fan, which is arranged in the first cavity and used to send airflow into the second cavity;

The heat exchanger is arranged in the second cavity and is located between the water receiving pan and the upper heat insulating member, and is used for exchanging heat for the air flow sent by the fan.

As a specific structural design of the air duct machine,

The upper thermal insulation member includes a first bottom plate and a first inner side plate; the first inner side plate is vertically connected to one side of the first bottom plate;

The water-receiving pan includes a second bottom plate and a second inner plate; the second inner plate is vertically connected to one side of the second bottom plate; the first inner plate and the second inner plate are connected to each other. The cavity in the housing is divided into the first cavity and the second cavity.

In some embodiments of the present application, a step is provided on the outer side of the end of the first inner side plate; the end of the second inner side plate is connected to the step.

In some embodiments of the present application, the housing includes a bottom plate and a top plate;

The first bottom plate is located below the top plate and is connected to the top plate;

The second bottom plate is located above the bottom plate and is connected to the bottom plate.

In some embodiments of the present application, at least one first opening hole with a lower opening is provided on the first inner panel; and an upper opening hole is provided on the second inner panel corresponding to each of the first opening holes. Open second opening holes; each of the first opening holes and each of the second opening holes are connected in a one-to-one correspondence to form at least one through hole; each through hole is connected to each of the fans.

In some embodiments of the present application, the upper thermal insulation member is manufactured by integral foam molding; a square recess is provided on the outer side of the first inner side board; and the bottom plate is provided with a connection and adaption to the square recess The third protrusion is connected with the square recess.

In some embodiments of the present application, the square recess is located in the middle of the upper end of the first inner side plate.

In some embodiments of the present application, the upper thermal insulation member further includes a first right side plate, which is located at one end of the upper thermal insulation member and is connected to the first bottom plate;

The housing further includes a right side panel, which is used to form a side wall at one end of the housing and is connected to the first right side panel; on the right side panel corresponding to the first right side panel The height is provided with a bendable press sheet;

When the upper thermal insulation member is located in the housing, the pressing piece is bent inward to be located below the end of the first right side plate and connected with the first right side plate.

In some embodiments of the present application, the water receiving tray is provided with a bottom support, which is manufactured by integral molding with a temperature-insulating material; the water receiving tray is located above the bottom support and is fixedly connected to the bottom support.

In some embodiments of the present application, a groove is provided on the outer side of the second bottom plate; a second protrusion that fits the groove is provided on the upper side of the bottom bracket; the second protrusion Insert into the groove; the water receiving tray and the bottom support are fixedly connected by bonding.

Compared with the prior art, the advantages and positive effects of the present application are: the air duct machine of the present application isolates the cavity in the housing into the first cavity through the connection of the upper heat insulation member and the water tray located in the housing. The second cavity. First of all, the coordinated installation of the upper insulation and the water tray improves the modularity of the assembly structure of the duct machine, reduces the partitions in the parts that must be installed in the traditional duct machine, reduces the weight of the duct machine, and facilitates installation and transportation; The application is to use the structure of the upper thermal insulation member and the water tray to realize the limitation and fixation, and isolate the cavity in the shell into the first cavity and the second cavity, instead of the connection between the partition and the shell in the traditional component , Which greatly reduces the number of screws used, further reduces the weight of the air duct machine, and facilitates installation and transportation; and reduces the number of components and the use of screws, which greatly reduces labor consumption, improves assembly efficiency and saves costs; in addition, the upper cover plate Insulation parts are arranged inside to increase the heat preservation effect of the shell, reduce the energy transmission inside the shell, and reduce energy loss; especially when cooling, it can not only reduce energy loss, but also reduce the loss of cold energy, so that the shell The difference between body temperature and room temperature is reduced, thereby reducing the generation of condensed water, reducing the risk of dripping from the ceiling, and improving the user experience.

Description of the drawings

In order to explain the technical solutions in the embodiments of the present application more clearly, the following will briefly introduce the drawings that need to be used in the embodiments. Obviously, the drawings in the following description are some embodiments of the present application. A person of ordinary skill in the art can obtain other drawings based on these drawings without creative work.

Fig. 1 is a schematic diagram of an installation structure of an embodiment of a duct machine proposed in the present application;

Figure 2 is a partial longitudinal cross-sectional view of the embodiment of the air duct machine in Figure 1;

Fig. 3 is a schematic diagram of the connection of the upper insulation member and the water receiving tray of the embodiment of the air duct machine in Fig. 1;

Figure 4 is a schematic diagram of the installation structure of the motor mounting frame and the upper cover plate;

Figure 5 is a schematic diagram of the structure of the water receiving tray.

In the figure,

1. Shell; 2. Upper insulation; 3. Drain tray; 11. Top plate; 14. Bottom plate; 15. Left side plate; 16. Right side plate; 161. Pressing sheet; 21. First inner side plate; 211 , Step; 212, the first opening hole; 213, the first protrusion; 214, the recess; 22, the first bottom plate; 23, the first right side plate; 31, the second inner side plate; 32, the second bottom plate; 34 、Vertical stiffener; 35. Variable cross-section stiffener; 36. Transverse stiffener; 37. Positioning hole; 38. Groove; 311. Second opening hole; 4. Heat exchanger; 5. Fan; 51. Volute 6. Bottom support; 61, the second protrusion; 7, the motor mounting frame; 71, the third protrusion.

Detailed ways

The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present application, but should not be understood as a limitation to the present application.

The duct machine in this application performs the refrigeration cycle of the duct machine 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, and supplies refrigerant to the air that has been conditioned and heat exchanged.

The compressor compresses the 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 the heat is released to the surrounding environment through the condensation process.

The expansion valve expands the liquid phase refrigerant in a high temperature and high pressure state condensed 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 realize the refrigeration effect by using the latent heat of the evaporation of the refrigerant to exchange heat with the material to be cooled. Throughout the cycle, the air duct machine can adjust the temperature of the indoor space.

The outdoor unit of the air duct machine refers to a part of the refrigeration cycle including a compressor and an outdoor heat exchanger. The indoor unit of the air duct machine includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit.

The indoor heat exchanger and the outdoor heat exchanger are used as condensers or evaporators. When the indoor heat exchanger is used as a condenser, the duct machine is used as a heater in heating mode, and when the indoor heat exchanger is used as an evaporator, the duct machine is used as a cooler in cooling mode.

1, 2, 3, 4 and 5, the present application discloses an air duct machine, which includes a casing 1, an upper thermal insulation member 2, a water receiving tray 3, at least one fan 5, and a heat exchanger 4 .

The shell 1 is used to form a cavity, and contains the upper thermal insulation member 2, the water receiving tray 3, the fan 5 and the heat exchanger 4. The upper thermal insulation piece 2 is used for the heat insulation of the shell 1; the water receiving tray 3 is used for receiving condensate water when the air duct machine is cooled; the upper thermal insulation piece 2 is connected with the water receiving tray 3 to separate the cavity in the shell 1 into independent的 first cavity and second cavity.

The fan 5 is arranged in the first cavity and is used to send airflow into the second cavity; the heat exchanger 4 is arranged in the second cavity and is located between the upper thermal insulation member 2 and the water receiving tray 3, and sends the air to the fan 5 The airflow exchanges heat, makes the airflow warmer or cools, and then blows out, so as to realize the heating or cooling of the air conditioner.

In the air duct machine of the present application, the coordinated installation of the upper thermal insulation member 2 and the water receiving tray 3 improves the modularity of the assembly structure of the air duct machine, reduces the central partitions of the components that must be installed in the traditional air duct machine, and reduces the burden of the air duct machine. Weight, easy to install and transport.

This application uses the connection of the upper thermal insulation member 2 and the water tray 3 to isolate the cavity in the housing 1 into a first cavity and a second cavity, instead of connecting the partition and the housing in the traditional component. The number of screws used is greatly reduced, the weight of the air duct machine is further reduced, and the installation and transportation are convenient. In addition, the number of components and the use of screws are reduced, which greatly reduces labor consumption, improves assembly efficiency and saves costs.

In addition, a thermal insulation member 2 is provided in the shell 1 to increase the thermal insulation effect of the shell 1, reduce the energy transmission in the shell 1 to the outside, and reduce energy loss; especially when cooling, it can not only reduce energy loss, but also Since the loss of cold energy is reduced, the difference between the temperature of the housing 1 and the room temperature is reduced, thereby reducing the generation of condensed water, reducing the risk of dripping from the ceiling, and improving the user experience.

In the following, a detailed description will be given of the heat preservation and drainage structure for the air duct machine and the specific structure of the air duct machine according to the present application through specific embodiments.

In some embodiments of the present application, referring to FIGS. 1, 2, 3 and 5, the housing 1 includes a top plate 11 and a bottom plate 14. The upper thermal insulation member 2 includes a first inner plate 21 and a first bottom plate 22; the first inner plate 21 is vertically connected to one side of the first bottom plate 11. The first bottom plate 22 is located below the top plate 11 and connected to the top plate 11.

The water receiving tray 3 is a box with an upper opening, which includes a second inner side plate 31 and a second bottom plate 32. The length of the water tray 3 is installed and adapted to the length of the housing 1, which is installed in the housing 1; the second inner side plate 31 is vertically connected to one side of the second bottom plate 32; the second bottom plate 32 is located on the side of the bottom plate 14 Above and connected to the bottom plate 14.

The first inner plate 21 and the second inner plate 31 are connected to separate the cavity in the housing 1 into a first cavity and a second cavity.

In some embodiments of the present application, referring to FIGS. 1, 2, 3, and 5, at least one first opening hole 212 that opens upward is provided on the first inner plate 21; and the second inner plate 31 corresponds to each The position of the first opening hole 212 is respectively provided with a second opening hole 311 opening downward; each first opening hole 212 is connected with the second opening hole 311 to form at least one through hole. Each fan 5 is connected to each through hole through an air duct, so that the fan 5 sends air flow to the second cavity.

In some embodiments of the present application, referring to FIGS. 1 and 3, the fan 5 includes two, and the through hole includes two.

In some embodiments of the present application, the through hole is a square through hole, that is, the first opening hole 212 and the second opening hole 311 are square holes of equal width.

In some embodiments of the present application, referring to FIG. 1, FIG. 2, FIG. 3, and FIG. 5, the first inner side plate 21 and the second inner side plate 31 are connected in abutment manner. Specifically, a step 211 is provided on the outer side of the lower edge of the first inner plate 21; the upper edge of the second inner plate 31 abuts the step 211.

In order to increase the strength of the drain pan 3, preferably, a plurality of vertical reinforcement ribs 34 are provided on the outer side of the second inner plate 31 to increase the strength of the second inner plate 31 so as to stably support the upper thermal insulation member 2.

In some embodiments of the present application, two of the vertical reinforcement ribs 34 are respectively arranged in the middle of the second inner side plate 31.

In some embodiments of the present application, it further includes a transverse stiffener 36, which is located on the upper edge of the second inner panel 31 and increases the width of the upper edge of the second inner panel 31; the transverse stiffener 36 and the first inner panel 21 The step 211 abuts, reducing the difficulty of connecting the first inner panel 21 and the second inner panel 31.

In some embodiments of the present application, the two ends of the transverse reinforcement rib 36 are respectively fixedly connected to the upper ends of the two vertical reinforcement ribs 34 located in the middle of the second inner panel 31 to further strengthen the strength of the second inner panel 31.

In some embodiments of the present application, referring to FIG. 5, a plurality of vertical variable cross-section stiffeners 35 are provided on the inner side of the second inner side plate 31, which include a large end and a small end; the large end is fixedly connected to the second bottom plate 32 , The small end is fixedly connected to the upper side of the second inner plate 31 to increase the strength of the connection between the second inner plate 31 and the second bottom plate 32.

In some embodiments of the present application, the vertical reinforcement ribs 34, the lateral reinforcement ribs 36, the variable cross-section reinforcement ribs 35, and the second inner side plate 31 are integrally formed and manufactured.

In some embodiments of the present application, referring to Figures 1, 2, 3, and 5, a bottom support 6 is provided for the water receiving tray 3. The two bottom plates 32 are fixedly connected to prevent the heat or cold in the housing 1 from being lost from the lower side of the housing 1.

In some embodiments of the present application, the bottom bracket 6 and the second bottom plate 32 are fixedly connected by bonding.

Further preferably, an upwardly concave groove 38 is provided on the lower side of the second bottom plate 32; a second protrusion 61 connected and adapted to the groove 38 is provided on the upper side of the bottom bracket 6; the second protrusion 61 is installed Into the groove 38, and adhere to the groove 38 together.

In some embodiments of the present application, the groove 38 is an elongated groove 38 located on the side of the second bottom plate 31 close to the second inner side plate 31.

In some embodiments of the present application, the longitudinal section of the second protrusion 61 is a right-angled trapezoid, and the right-angle side is adjacent to the second inner side plate 31. Correspondingly, the groove 38 includes a trapezoidal groove 38 connected and adapted to the second protrusion 61. One side of the oblique side of the right-angle trapezoid of the groove 38 has a guiding effect on the installation of the bottom support 6 and the water receiving tray 3, which facilitates the installation of the bottom support 6 and the water receiving tray 3 and improves the installation efficiency.

In some embodiments of the present application, the side wall of the groove 38 corresponding to the right-angled side of the trapezoid is the second inner side plate 31; the bottom bracket 6 extends to the front side of the water receiving tray 3. The water receiving tray 3 and the bottom support 6 are fixedly connected to form a bottom support assembly of the water receiving tray 3. Since the drain pan 3 and the bottom bracket 6 are installed in the housing 1, the front side of the bottom bracket 6 abuts the front panel 13, and the fixing of the drain pan bottom bracket assembly is limited by the front side of the front panel 13 supporting the bottom bracket 6. The force acting on the front side of the bottom bracket 6 is transmitted to the second protrusion 61, thereby acting on the second inner plate 31. Since the second inner plate 31 has a vertical plate-like structure, the second protrusion 61 is not easily removed from The groove 38 comes out, which increases the stability of the connection between the water receiving tray 3 and the bottom support 6.

In some embodiments of the present application, referring to FIG. 1, a positioning hole 37 is provided at one end of the water receiving tray 3, which is an opening along the height direction of the second inner plate 31, and the opening is located on the outside of the second inner plate 31; A positioning pillar is provided at one end of the housing 1 corresponding to the positioning hole 37, and the positioning pillar is located in the positioning hole 37. One end of the housing 1 of the first cavity is provided with an electrical box; the other end of the water receiving tray 3 is located at the front side of the electrical box, and the water receiving tray 3 and the upper heat insulating member 2 are positioned in the front-to-rear direction through the electrical box.

In some embodiments of the present application, the positioning hole 37 is a square through hole that opens to the left side plate 15 and the rear panel 12, and its inner wall is parallel to the left side plate 15 and the rear panel 12, respectively.

In some embodiments of the present application, referring to FIG. 1, FIG. 2, FIG. 3, and FIG. 5, the upper thermal insulation member 2 is manufactured by integral foam molding.

A first protrusion 213 is provided on the outer side of the first inner side plate 21. The fan 5 includes a volute 51 and a motor; the volute 51 is fixedly connected to the top plate 11 by a buckle; the motor is fixedly connected to the top plate 11 through a motor mounting frame 7. The volute 51 is connected to the first protrusion 213 when it is clamped with the top plate 11, and the first protrusion 213 is elastically deformed, so that the connection of the buckle is tightly connected, and the shock resistance is enhanced, that is, the buckle caused by vibration is reduced. The risk of disengagement. In addition, since the upper thermal insulation member 2 is made of integral foam, it has good shock absorption, so the connection of the volute 51 and the upper thermal insulation member 2 can greatly reduce vibration and noise.

In some embodiments of the present application, the first protrusion 213 is a square protrusion corresponding to the lateral reinforcing rib 36. The lateral reinforcing rib 36 is connected to the lower edge of the first protrusion 213.

In some embodiments of the present application, referring to FIG. 1, the upper thermal insulation member 2 further includes a first right side plate 23. The housing includes a right side plate 16 which is connected to the first right side plate 23. A bendable pressing piece 161 is provided on the right side plate 16 at a position corresponding to the height of the first right side plate 23, which is fixedly connected to the right side plate 16 as a whole, and when the upper thermal insulation member 2 is installed to the designated position, it can be The pressing piece 161 is bent inward so that it is located outside the end of the first right side plate 23 and is connected to the first right side plate 23 to limit the upper thermal insulation member 2 to be fixed in the housing 1. The setting of the pressing piece 161 makes the installation of the upper thermal insulation member more convenient, fast and firm.

In some embodiments of the present application, referring to FIGS. 1, 3, and 4, a square recess 214 is provided on the outer side of the first inner side plate 21 or the outer side of the first bottom plate 22; correspondingly, the top plate 11 or the motor is installed The frame 7 is provided with a third protrusion 71 that fits and fits with the recess 214. The recess 214 is installed on the third protrusion 71, so that the upper thermal insulation member 2 can be quickly positioned during installation, and can prevent the upper thermal insulation member 2 from being displaced due to deformation.

In some embodiments of the present application, a square recess 214 is provided on the first inner side plate 21; correspondingly, a third protrusion 71 is provided on the motor mounting frame 7.

In some embodiments of the present application, the recess 214 is provided in the middle of the upper end of the first inner side plate 21, so that the upper heat insulation member 2 is located in the middle part of the first cavity in the left and right direction, so as to avoid the deformation of the upper heat insulation member 2 causing large dislocation.

In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc. indicate the orientation or positional relationship based on the drawings. The orientation or positional relationship is only for the convenience of describing the application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the application.

In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "a plurality of" means at least two, such as two, three, etc., unless specifically defined otherwise.

In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , Or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, it can be the internal connection of two components or the interaction relationship between two components, unless otherwise specified The limit. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in this application can be understood according to specific circumstances.

In this application, unless expressly stipulated and defined otherwise, the first feature “on” or “under” the second feature may be in direct contact with the first and second features, or the first and second features may be indirectly through an intermediary. contact. Moreover, the "above", "above" and "above" of the first feature on the second feature may mean that the first feature is directly above or diagonally above the second feature, or it simply means that the level of the first feature is higher than the second feature. The “below”, “below” and “below” of the second feature of the first feature may be that the first feature is directly below or obliquely below the second feature, or it simply means that the level of the first feature is smaller than the second feature.

In the description of this specification, descriptions with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean specific features described in conjunction with the embodiment or example , The structure, materials, or characteristics are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples and the features of the different embodiments or examples described in this specification without contradicting each other.

Although the embodiments of the present application have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and should not be construed as limiting the present application. A person of ordinary skill in the art can comment on the foregoing within the scope of the present application. The embodiment undergoes changes, modifications, substitutions, and modifications.

Claims

An air duct machine is characterized in that it comprises:

Shell, used to form a cavity;

The upper thermal insulation member, which is located in the shell, and is used to isolate the temperature of the shell;

A water receiving pan, which is located in the shell, is used for receiving condensed water, is connected with the upper heat insulating member, and divides the cavity in the shell into independent first and second cavities;

At least one fan, which is arranged in the first cavity and used to send airflow into the second cavity;

The heat exchanger is arranged in the second cavity and is located between the water receiving pan and the upper heat insulating member, and is used for exchanging heat for the air flow sent by the fan.
The air duct machine according to claim 1, wherein the upper heat insulation member comprises a first bottom plate and a first inner side plate; the first inner side plate is vertically connected to one side of the first bottom plate;

The water receiving tray includes a second bottom plate and a second inner plate; the second inner plate is vertically connected to one side of the second bottom plate; the first inner plate and the second inner plate are connected to each other. The cavity in the housing is divided into the first cavity and the second cavity.
The air duct machine according to claim 2, wherein a step is provided outside the end of the first inner side plate; the end of the second inner side plate is connected to the step.
The air duct machine according to claim 3, wherein the housing includes a bottom plate and a top plate;

The first bottom plate is located below the top plate and is connected to the top plate;

The second bottom plate is located above the bottom plate and is connected to the bottom plate.
The air duct machine according to claim 4, wherein at least one first opening hole that opens downward is provided on the first inner panel; and the second inner panel corresponds to each of the first openings. The positions of the opening holes are respectively provided with second opening holes that open upward; each of the first opening holes is connected to each of the second opening holes in a one-to-one correspondence to form at least one through hole; each through hole is connected to each The fan connection.
The air duct machine according to claim 5, wherein the upper thermal insulation member is made of foam integral molding; a square recess is provided on the outer side of the first inner side plate; and the bottom plate is provided with The third protrusion adapted to be connected to the recess is connected to the recess.
The air duct machine according to claim 6, wherein the recess is located in the middle of the upper end of the first inner side plate.
The air duct machine according to claim 4, wherein the upper heat insulation member further comprises a first right side plate, which is located at one end of the upper heat insulation member and is connected to the first bottom plate;

The housing further includes a right side panel, which is used to form a side wall at one end of the housing and is connected to the first right side panel; on the right side panel corresponding to the first right side panel The height is provided with a bendable press sheet;

When the upper thermal insulation member is located in the housing, the pressing piece is bent inward to be located below the end of the first right side plate and connected with the first right side plate.
The air duct machine according to any one of claims 1 to 8, wherein the water receiving tray is provided with a bottom support, which is manufactured by integral molding of a temperature-insulating material; the water receiving tray is located on the bottom support The upper part is fixedly connected with the bottom support.
The air duct machine according to claim 9, characterized in that a groove is provided on the outer side of the second bottom plate; a second protrusion fitted to the groove is provided on the upper side of the bottom support The second protrusion is inserted into the groove; the water receiving tray and the bottom support are fixedly connected by bonding.