CN118757899A - Air duct components and cabinet air conditioner indoor unit - Google Patents

Abstract

The present invention relates to the field of air conditioning technology, and in particular to an air duct assembly and a cabinet air conditioner indoor unit. The air duct assembly comprises: an air duct shell, wherein a plurality of air ducts are separated inside the shell, and each air duct comprises an upper air duct, a fan cavity and a lower air duct which are sequentially connected from top to bottom. The air duct wall of each upper air duct is provided with an upper air guide port, and the air duct wall of each lower air duct is provided with a lower air guide port; a plurality of fans are arranged in the fan cavity of the plurality of air ducts in a one-to-one correspondence; a plurality of upper wind shielding components are arranged in a one-to-one correspondence at the upper air guide ports of the plurality of air ducts, and are used to control the opening and closing of the upper air guide ports and the connection between the upper air duct and the fan cavity; a plurality of lower wind shielding components are arranged in a one-to-one correspondence at the lower air guide ports of the plurality of air ducts, and are used to control the opening and closing of the lower air guide ports and the connection between the lower air duct and the fan cavity. The present invention improves the uniformity effect of the indoor environment temperature in the height direction, reduces the power consumption of temperature regulation and improves the comfort of the indoor environment.

Description

Air duct components and cabinet air conditioner indoor unit

Technical Field

The present invention relates to the technical field of air conditioning, and in particular to an air duct component and a cabinet type air conditioner indoor unit.

Background Art

In the related art, the positions of the air supply and return air outlets of the air conditioner remain relatively unchanged, and the temperature of the indoor air will be stratified along the height direction. The air with high temperature gathers at high altitudes due to its low density, and the air with low temperature gathers at low altitudes due to its high density. As a result, the air conditioner with fixed supply and return air positions cannot take into account various working conditions. Under certain working conditions, there is uneven temperature stratification in the height direction (thermal stratification phenomenon), and energy saving and comfort cannot reach the optimal level.

Summary of the invention

In order to overcome the problem in the related art that the positions of the air supply and return air outlets of the air conditioner are relatively unchanged, resulting in uneven distribution of indoor air temperature in the height direction, poor energy saving and comfort experience, the first aspect of the present invention proposes an air duct assembly, the air duct assembly comprising:

An air duct shell, wherein a plurality of air ducts are separated inside, each of which comprises an upper air duct, a fan chamber and a lower air duct which are sequentially connected from top to bottom, an upper air duct wall of each upper air duct is provided with an upper air guide port, and a lower air duct wall of each lower air duct is provided with a lower air guide port;

A plurality of fans, which are arranged in the fan cavities of the plurality of air ducts in a one-to-one correspondence, and the fans are centrifugal fans;

A plurality of upper wind shield components and a plurality of lower wind shield components, the plurality of upper wind shield components are arranged at the upper air ducts of the plurality of air ducts in a one-to-one correspondence, the upper wind shield components are designed to block the connection between the upper air duct and the fan cavity while opening the upper air duct or to connect the upper air duct with the fan cavity while closing the upper air duct; the plurality of lower wind shield components are arranged at the lower air ducts of the plurality of air ducts in a one-to-one correspondence, the lower wind shield components are designed to block the connection between the lower air duct and the fan cavity while opening the lower air duct or to connect the lower air duct with the fan cavity while closing the lower air duct.

In some embodiments, the plurality of fan cavities of the air duct shell are staggered along the height direction, width direction and/or thickness direction of the air duct shell.

In some embodiments, the upper air duct extends obliquely upward in the air duct shell, and the lower air duct extends obliquely downward in the air duct shell, and the upper air duct and the lower air duct extend in opposite directions in the air duct shell;

The extension directions of the multiple upper air ducts of the air duct shell are the same, and the extension directions of the multiple lower air ducts of the air duct shell are the same.

In some embodiments, the air duct walls of two adjacent upper air ducts are at least partially in contact with each other, and the air duct walls of two adjacent lower air ducts are at least partially in contact with each other.

A second aspect of the present invention provides a cabinet-type air-conditioning indoor unit, the cabinet-type air-conditioning indoor unit comprising:

A shell, wherein an upper air inlet and an upper air outlet are provided at an upper portion of the shell, and a lower air inlet and a lower air outlet are provided at a lower portion of the shell;

The air duct assembly proposed in the first aspect of the present invention is arranged in the shell, and a shell channel is formed between the air duct assembly and the shell, the upper air duct is communicated with the upper air port, and the upper air duct is communicated with the shell channel when the upper wind shielding component opens the upper air guide port, the lower air duct is communicated with the lower air port, and the lower air duct is communicated with the shell channel when the lower wind shielding component opens the lower air guide port, and the upper air inlet and the lower air inlet are both communicated with the shell channel;

The heat exchanger assembly is arranged in the shell channel and is used for exchanging heat for the airflow passing through the shell channel. The airflow after heat exchange by the heat exchanger assembly enters the air duct assembly.

In some embodiments, the cabinet air conditioner indoor unit has a single upper air outlet mode, a single lower air outlet mode, and a upper and lower simultaneous air outlet mode;

When the cabinet air conditioner indoor unit is in the single upper air outlet mode, all upper wind shielding components close the corresponding upper air guide ports and make the corresponding upper air ducts communicate with the fan cavity, and all lower wind shielding components open the corresponding lower air guide ports and block the communication between the corresponding lower air ducts and the fan cavity;

When the cabinet air conditioner indoor unit is in the single lower air outlet mode, all upper wind shielding components open the corresponding upper air guide ports and block the connection between the corresponding upper air duct and the fan cavity, and all lower wind shielding components close the corresponding lower air guide ports and connect the corresponding lower air duct to the fan cavity;

When the cabinet air-conditioning indoor unit is in the upper and lower simultaneous air outlet mode, all upper wind shielding components close the corresponding upper air guide outlets while connecting the corresponding upper air ducts with the fan cavity, and all lower wind shielding components close the corresponding lower air guide outlets while connecting the corresponding lower air ducts with the fan cavity.

In some embodiments, the air duct shell includes a first shell surface and a second shell surface arranged along the axial direction of the fan cavity, and the heat exchanger assembly includes two heat exchange components, one of the two heat exchange components is located between the first shell surface and the shell, and the other of the two heat exchange components is located between the second shell surface and the shell.

In some embodiments, the heat exchange component is a plate heat exchange component, which includes an upper heat exchange section and a lower heat exchange section, and the angle between the heat exchange surface of the upper heat exchange section and the heat exchange surface of the lower heat exchange section is greater than 90 degrees and less than or equal to 180 degrees.

In some embodiments, the first shell surface and the second shell surface are respectively disposed toward the left and right sides of the shell.

In some embodiments, the cabinet air conditioner indoor unit also includes an upper ventilation frame and a lower ventilation frame, the upper ventilation frame is arranged in the shell and is located between the upper air outlet and the air duct assembly, the upper ventilation frame connects all upper air ducts with the upper air outlet, the lower ventilation frame is arranged in the shell and is located between the lower air outlet and the air duct assembly, the lower ventilation frame connects all lower air ducts with the lower air outlet.

The technical solution of the present invention may include the following beneficial effects: the present invention arranges a plurality of independent air ducts in the air duct shell of the air duct assembly, and a fan is provided in the fan cavity of each air duct, and an upper air duct is provided in the upper air duct of each air duct, and a lower air duct is provided in the lower air duct, and the upper air duct is controlled by the upper wind shield component while controlling the connection and disconnection of the fan cavity and the upper air duct, and the lower air shield component is controlled while controlling the opening and closing of the lower air duct while controlling the connection and disconnection of the fan cavity and the lower air duct.

In the application scenario of the cabinet air conditioner indoor unit, by cooperating with the air inlet and outlet of the cabinet air conditioner indoor unit, different air inlet and outlet modes can be realized under different working conditions and temperatures. In the cooling mode, the upper air guide port can be closed by controlling the upper air shield component, and the lower air shield component can be opened by the lower air shield component, so that the lower air guide port is allowed to enter, thereby realizing the upper air outlet and lower return air mode, and the cold air sinking principle is used to improve the uniformity of the cold air distribution in the indoor height direction, improve the cooling effect of the air conditioner, and achieve the purpose of energy saving; in the heating mode, the upper air guide port can be opened by controlling the upper air shield component, and the lower air shield component can be closed by the lower air shield component, so that the upper air guide port is allowed to enter, thereby realizing the lower air outlet and upper return air mode, and the hot air floating principle is used to improve the uniformity of the cold air distribution in the indoor height direction, reduce the temperature rise time and reduce the wind sense index, and improve the comfort effect. Moreover, in the early stage of cooling or heating, when the indoor ambient temperature is greatly different from the temperature set by the user, the upper wind shield component can be controlled to close the upper air duct, and the lower wind shield component can be controlled to close the lower air duct, so as to achieve simultaneous air outlet from top and bottom, realize enveloping cooling or heating, and speed up the efficiency of indoor temperature control.

It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

Fig. 1 is a structural diagram of an air duct assembly according to an exemplary embodiment.

Fig. 2 is a diagram showing the internal structure of an air duct assembly according to an exemplary embodiment (a diagram showing a state in which an upper wind shielding component closes an upper air guide port, and a lower wind shielding component closes a lower air guide port).

Fig. 3 is a diagram showing the internal structure of an air duct assembly according to an exemplary embodiment (a diagram showing a state in which an upper wind shielding component opens an upper air guide port, and a lower wind shielding component opens a lower air guide port).

Fig. 4 is a structural diagram of a cabinet-type air-conditioner indoor unit according to an exemplary embodiment.

Fig. 5 is a diagram showing a cabinet type air conditioner indoor unit from different viewing angles according to an exemplary embodiment.

Fig. 6 is an exploded view of a cabinet type air conditioner indoor unit according to an exemplary embodiment.

Fig. 7 is an air flow path diagram showing an upper air outlet mode of an indoor unit of a cabinet-type air conditioner according to an exemplary embodiment.

Fig. 8 is an air flow path diagram of a downward air outlet mode of a cabinet-type air conditioner indoor unit according to an exemplary embodiment.

Fig. 9 is an airflow path diagram of a cabinet-type air conditioner indoor unit in a simultaneous up-and-down air outlet mode according to an exemplary embodiment.

The reference numerals are as follows:

1. Shell; 1a. Air inlet component; 1b. Panel component; 1c. Top cover component; 1d. Base component; 11. Upper air outlet; 12. Upper air inlet; 13. Lower air outlet; 14. Lower air inlet; 15. Shell channel; 2. Air duct assembly; 21. Air duct shell; 211. First air duct shell; 212. Second air duct shell; 213. Upper air guide; 214. Lower air guide; 22. Upper wind shield component; 23. Lower wind shield component; 201. First air duct; 2 011, first upper air duct; 2012, first lower air duct; 2013, first fan cavity; 2014, first shell surface; 2015, second shell surface; 202, second air duct; 2021, second upper air duct; 2022, second lower air duct; 2023, second fan cavity; 3, upper ventilation frame; 4, lower ventilation frame; 5, first fan; 6, second fan; 7, heat exchanger assembly; 71a, upper heat exchange section; 71b, lower heat exchange section; 8, partition.

DETAILED DESCRIPTION

Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are merely examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

Since the positions of the air supply and return air outlets of the indoor unit of the current cabinet air conditioner remain unchanged, the blown air will cause the indoor temperature to be stratified in the height direction, affecting the comfort of the indoor environment and the energy saving of the air conditioner. In order to solve this problem, this embodiment proposes an air duct assembly, which includes an air duct shell, and the air duct shell is divided into multiple air ducts, each of which includes an upper air duct, a fan cavity and a lower air duct arranged in sequence from top to bottom, a fan is arranged in the fan cavity, an upper air duct wall of each upper air duct is provided, and a lower air duct wall of each lower air duct is provided, an upper wind shield component is provided at the upper air duct, and a lower wind shield component is provided at the lower air duct, the upper wind shield component controls the opening and closing of the upper air duct while controlling the connection between the fan cavity and the upper air duct, and the lower wind shield component controls the opening and closing of the lower air duct while controlling the connection between the fan cavity and the lower air duct.

In the application scenario of the cabinet air conditioner indoor unit, the air duct assembly of this embodiment cooperates with the air inlet and air outlet of the cabinet air conditioner indoor unit to realize different air inlet and outlet modes under different working conditions and different temperatures. In the cooling mode, the upper air guide port can be closed by controlling the upper air shield component, and the lower air shield component can be opened by the lower air shield component, so that the lower air guide port is allowed to enter, thereby realizing the upper air outlet and lower return air mode, and the cold air sinking principle is used to improve the uniformity of the cold air distribution in the indoor height direction, improve the cooling effect of the air conditioner, and achieve the purpose of energy saving; in the heating mode, the upper air guide port can be opened by controlling the upper air shield component, and the lower air shield component can be closed by the lower air shield component, so that the upper air guide port is allowed to enter, thereby realizing the lower air outlet and upper return air mode, and the hot air floating principle is used to improve the uniformity of the cold air distribution in the indoor height direction, reduce the temperature rise time and reduce the wind sense index, and improve the comfort of the air conditioner. Moreover, in the early stage of cooling or heating, when the indoor ambient temperature is greatly different from the temperature set by the user, the upper wind shield component can be controlled to close the upper air duct, and the lower wind shield component can be controlled to close the lower air duct, so as to achieve simultaneous air outlet from top and bottom, realize enveloping cooling or heating, and speed up the efficiency of indoor temperature control.

The technical solution of this embodiment is described in detail below in conjunction with the accompanying drawings. The following implementation modes and examples may be combined with each other if there is no conflict.

According to an exemplary embodiment, as shown in FIG. 1 to FIG. 3 , this embodiment provides an air duct assembly 2, which includes an air duct housing 21, a plurality of fans, a plurality of upper wind shielding components 22 and a plurality of lower wind shielding components 23, wherein:

The interior of the air duct housing 21 is divided into a plurality of independent air ducts, each of which includes an upper air duct, a fan chamber and a lower air duct arranged in sequence from top to bottom. The air duct wall of each upper air duct is provided with an upper air guide 213, and the air duct wall of each lower air duct is provided with a lower air guide 214. An upper volute tongue is provided on one side of the fan chamber close to the upper air duct, and the airflow generated by the rotation of the fan in the fan chamber can enter the upper air duct through the upper volute tongue; a lower volute tongue is provided on one side of the fan chamber close to the lower air duct, and the airflow generated by the rotation of the fan in the fan chamber can enter the lower air duct through the lower volute tongue. In a preferred embodiment, as shown in FIG. 1 , the air duct shell 21 includes a first air duct shell 211 and a second air duct shell 212, the first air duct shell 211 and the second air duct shell 212 are buckled together along the thickness direction of the air duct shell 21, and a plurality of retaining edges are provided in the first air duct shell 211 or the second air duct shell 212 to separate each air duct and each fan cavity. When the first air duct shell 211 and the second air duct shell 212 are buckled together, the first air duct shell 211, the second air duct shell 212 and the plurality of retaining edges enclose an upper air duct, a lower air duct and a fan cavity. In order to reduce the space occupied by the air duct assembly 2, the air duct walls of the two adjacent upper air ducts are at least partially fitted, and the air duct walls of the two adjacent lower air ducts are at least partially fitted. Alternatively, the two adjacent upper air ducts share a portion of the upper air duct wall, and the two adjacent lower air ducts share a portion of the lower air duct wall.

In a preferred embodiment, as shown in FIG. 2 and FIG. 3 , the multiple fan cavities of the duct shell 21 are staggered along the height direction, width direction and/or thickness direction of the duct shell 21 to reduce the space occupied by the duct assembly 2. At the same time, the upper duct can be further extended obliquely upward in the duct shell 21, and the lower duct can be extended obliquely downward in the duct shell 21, and the upper duct and the lower duct can be extended in opposite directions in the duct shell 21, and the extension directions of the multiple upper ducts are the same, and the extension directions of the multiple lower ducts are the same. This embodiment reasonably designs the layout of the upper duct and the lower duct in the limited space in the duct shell 21, and can further reduce the space occupied by the entire duct assembly 2 while ensuring that the wind blown out by the fan cavity can be smoothly blown out from the upper duct and the lower duct. At the same time, the lengths of the upper duct and the lower duct are different, that is, each duct includes a longer duct and a shorter duct. Air can be discharged from the shorter duct alone, the longer duct alone, or from both the longer duct and the shorter duct at the same time according to the requirements of indoor ambient temperature control.

As shown in Figures 2 and 3, multiple fans are arranged one by one in the fan cavities of multiple air ducts, and air inlet ends are provided at both ends of the axial direction of the fan. The fan can suck air into the fan cavity from the air inlet ends at both ends of the axial direction, thereby increasing the air intake volume. The fan is exemplarily a centrifugal fan.

As shown in Figures 2 and 3, a plurality of upper wind shield components 22 are arranged one by one at the upper air ducts 213 of the plurality of air ducts, and the upper wind shield components 22 are designed to block the connection between the upper air duct and the fan cavity while opening the upper air duct 213 or to connect the upper air duct with the fan cavity while closing the upper air duct 213; a plurality of lower wind shield components 23 are arranged one by one at the lower air ducts 214 of the plurality of air ducts, and the lower wind shield components 23 are designed to block the connection between the lower air duct and the fan cavity while opening the lower air duct 214 or to connect the lower air duct with the fan cavity while closing the lower air duct 214. In one feasible manner, the upper wind shield component 22 includes a baffle and a drive motor. The baffle is rotatably disposed at the upper air duct 213. The drive motor drives the baffle to switch between a position of opening the upper air duct 213 and a position of closing the upper air duct 213, thereby realizing different conduction states. The lower wind shield component 23 can also adopt the same combination of a baffle and a drive motor, which will not be repeated here.

The air duct assembly 2 of this embodiment, when applied to the indoor unit of a cabinet air conditioner, can realize single upper air outlet, single lower air outlet and upper and lower simultaneous air outlet by cooperating with the air inlet and air outlet of the indoor unit of the cabinet air conditioner. When the upper air outlet is single, all lower air ducts are air inlet ducts, and all upper air ducts are air outlet ducts, thereby increasing the heat exchange of the air flow on the lower side of the indoor environment, which helps to improve the uniformity of the temperature of the cold air in the height direction of the indoor environment in the cooling mode, and at the same time improves the cooling capacity of the air conditioner to achieve the purpose of energy saving. When the lower air outlet is single, all upper air ducts are air inlet ducts, and all lower air ducts are air outlet ducts, thereby increasing the heat exchange of the air flow on the upper side of the indoor environment, which helps to improve the uniformity of the temperature of the hot air in the height direction of the indoor environment in the heating mode, and at the same time reduces the temperature rise time and reduces the wind sense index, and improves the comfort of the air conditioner. In addition, when the upper and lower air outlets are simultaneously, all upper air ducts and all lower air ducts are air outlet ducts, which increases the air volume, forms an embracing heat exchange for the indoor environment, and increases the cooling or heating efficiency.

The air duct assembly 2 of this embodiment is described in detail below in conjunction with a specific example. As shown in Figures 1 to 3, a first air duct 201 and a second air duct 202 are provided in the air duct housing 21. The first air duct 201 includes a first upper air duct 2011, a first fan cavity 2013 and a first lower air duct 2012 which are connected in sequence from top to bottom, and the second air duct 202 includes a second upper air duct 2021, a second fan cavity 2023 and a second lower air duct 2022 which are connected in sequence from top to bottom. The air duct walls of the first upper air duct 2011 and the second upper air duct 2021 are respectively provided with upper air guide ports 213, and the air duct walls of the first lower air duct 2012 and the second lower air duct 2022 are respectively provided with lower air guide ports 214, and an upper wind shielding component 22 is provided at each upper air guide port 213, and a lower wind shielding component 23 is provided at each lower air guide port 214. The first upper air duct 2011 and the second upper air duct 2021 share part of the upper air duct wall, and the first lower air duct 2012 and the second lower air duct 2022 share part of the lower air duct wall. In other achievable ways, three air ducts, four air ducts or more air ducts can also be arranged in the air duct shell 21, and the structure of the air duct assembly 2 is similar, which will not be described in detail here. In practical applications, the number of air ducts can be flexibly designed based on comprehensive considerations such as the performance requirements, processing difficulty and production cost of the cabinet air conditioner indoor unit.

According to an exemplary embodiment, as shown in FIG. 4 to FIG. 9 , this embodiment proposes a cabinet air conditioner indoor unit, which includes a housing 1 and any air duct assembly 2 proposed in the above embodiments. An upper air inlet 12 and an upper air outlet 11 are provided at the upper portion of the housing 1, and a lower air inlet 14 and a lower air outlet 13 are provided at the lower portion of the housing 1. Air inlet grilles are provided at the upper air inlet 12 and the lower air inlet 14, respectively, and wind guide plates are provided at the upper air inlet 11 and the lower air inlet 13, respectively. This embodiment does not specifically limit the location of the upper air inlet 11, the upper air inlet 12, the lower air inlet 13 and the lower air inlet 14, as long as the upper air inlet 12 and the upper air inlet 11 are provided at the upper portion of the housing 1, and the lower air inlet 14 and the lower air outlet 13 are provided at the lower portion of the housing 1, they are all within the protection scope of the present invention.

In one embodiment, as shown in FIG6 , the housing 1 includes a top cover component 1c, an air inlet component 1a, a panel component 1b, and a base component 1d, and the sides of the top cover component 1c, the air inlet component 1a, the panel component 1b, and the base component 1d are connected in pairs, and the two ends of the air inlet component 1a and the panel component 1b in the height direction are respectively connected to the top cover component 1c and the base component 1d. The top cover component 1c, the air inlet component 1a, the panel component 1b, and the base component 1d are enclosed to form a chamber. Preferably, the upper air port 11 and the upper air inlet 12 are located on the upper side of the air inlet component 1a, and the upper air port 11 and the upper air inlet 12 are separated by a partition 8 to avoid interference between the inlet airflow and the outlet airflow. The lower air vent 13 is located at the lower side of the panel component 1b, and the lower air inlet 14 is located at the lower side of the air inlet component 1a. The upper air inlet 12 and the lower air inlet 14 assist the air intake, increase the air intake area when the upper air vent 11 and the lower air inlet 13 are switched between air inlet and outlet, solve the problem of small air volume and high noise of the cabinet air conditioner indoor unit, and at the same time, the upper air inlet 12 and the lower air inlet 14 are set at a position that the user cannot see, ensure the integrity of the front and back appearance of the air conditioner, and improve the aesthetics of the cabinet air conditioner indoor unit. At the same time, it also solves the problem that the air inlet of the conventional air conditioner is easily blocked when it is set at the back, reduces the installation space of the air conditioner, and reduces the requirements for installation conditions.

The air duct assembly 2 is arranged in the housing 1, and a housing channel 15 is formed between the air duct assembly 2 and the housing 1. All upper air ducts are connected to the upper air outlet 11, and the upper air duct is connected to the housing channel 15 when the upper wind shielding component 22 opens the upper air guide 213, all lower air ducts are connected to the lower air outlet 13, and the lower air duct is connected to the housing channel 15 when the lower wind shielding component 23 opens the lower air guide 214, and the upper air inlet 12 and the lower air inlet 14 are both connected to the housing channel 15. The lower air duct can be directly connected to the lower air outlet 13 or indirectly connected. In one example, as shown in Figures 6 to 9, the indoor unit of the cabinet air conditioner also includes an upper ventilation frame 3 and a lower ventilation frame 4. The upper ventilation frame 3 is arranged in the shell body 1 and is located between the upper air outlet 11 and the air duct assembly 2. The upper ventilation frame 3 connects all upper air ducts with the upper air outlet 11. The lower ventilation frame 4 is arranged in the shell body 1 and is located between the lower air outlet 13 and the air duct assembly 2. The lower ventilation frame 4 connects all lower air ducts with the lower air outlet 13.

The heat exchanger assembly 7 is arranged in the shell channel 15, and is used to exchange heat for the airflow flowing through the shell channel 15. The airflow after heat exchange by the heat exchanger assembly 7 is sucked into the fan cavity through the fan. In a preferred embodiment, as shown in FIG6 , the air duct shell 21 includes a first shell surface 2014 and a second shell surface 2015 arranged along the axial direction of the fan cavity, and the heat exchanger assembly 7 includes two heat exchange components, one of the two heat exchange components is located between the first shell surface 2014 and the shell 1, and the other of the two heat exchange components is located between the second shell surface 2015 and the shell 1. The airflow in the shell channel 15 can enter the fan cavity from the air inlet ends on both sides of the axial direction of the fan only after heat exchange by the heat exchanger assembly 7, which further improves the temperature regulation effect.

Furthermore, the heat exchange component is a plate-type heat exchange component, and the heat exchange component includes an upper heat exchange section 71a and a lower heat exchange section 71b which are arranged opposite to each other in the upper and lower directions, and the upper heat exchange section 71a is connected to the lower heat exchange section 71b, the upper heat exchange section 71a is inclined from top to bottom in a direction away from the air duct assembly 2, and the lower heat exchange section 71b is inclined from top to bottom in a direction close to the air duct assembly 2, so that the installation angle of the heat exchange surface of the upper heat exchange section 71a and the heat exchange surface of the lower heat exchange section 71b is 90° to 180°, so as to increase the heat exchange area. Of course, the installation angle of the heat exchange surface of the upper heat exchange section 71a and the heat exchange surface of the lower heat exchange section 71b can also be 180°.

In a specific example, as shown in Figure 6, a first air duct 201 and a second air duct 202 are provided in the air duct shell 21, the first fan cavity 2013 is located at the upper part of the second fan cavity 2023, a first fan 5 is provided in the first fan cavity 2013, and a second fan 6 is provided in the second fan cavity 2023. The upper heat exchange section 71a is arranged opposite to the air inlet end of the first fan 5, and the lower heat exchange section 71b is arranged opposite to the air inlet end of the second fan 6. At this time, the airflow entering the shell channel 15 through the upper air inlet 12 and the upper air guide port 213 can be sucked into the first fan cavity 2013 through the first fan 5 after heat exchange through the upper heat exchange section 71a, and the airflow entering the shell channel 15 through the lower air inlet 14 and the lower air guide port 214 can be sucked into the second fan cavity 2023 through the second fan 6 after heat exchange through the lower heat exchange section 71b.

It should be noted that in order to ensure that the airflow entering the shell channel 15 from the upper air inlet 12, the upper air guide 213, the lower air inlet 14 and the lower air guide 214 is first heat exchanged by the heat exchanger assembly 7 before being sucked into the fan cavity by the fan, the first air guide port and the second air guide port are opened on both sides of the width direction of the air duct shell 21, the first shell surface 2014 and the second shell surface 2015 are located on both sides of the thickness direction of the air duct shell 21, and the two heat exchange components are respectively sealed and connected to the first shell surface 2014 and the second shell surface 2015.

In a preferred embodiment, as shown in FIGS. 7 to 9 , the first shell surface 2014 and the second shell surface 2015 are respectively arranged toward the left and right sides of the housing 1 , thereby reducing the thickness of the cabinet air conditioner indoor unit and improving the aesthetics of the cabinet air conditioner indoor unit.

In a preferred embodiment, the cabinet air conditioner indoor unit further includes an upper air inlet fan and a lower air inlet fan, the upper air inlet fan is arranged in the housing 1 and is arranged opposite to the upper air inlet 12, and the lower air inlet fan is arranged in the housing 1 and is arranged opposite to the lower air inlet 14, so as to improve the air intake volume and air intake efficiency of the upper air inlet 12 and the lower air inlet 14. The upper air inlet fan and the lower air inlet fan can be either centrifugal fans or axial flow fans, and their specific types can be determined according to the setting positions of the upper air inlet 12 and the lower air inlet 14. For example, when the upper air inlet 12 is located at the top of the housing 1 and the lower air inlet 14 is located at the bottom of the back side of the housing 1, the upper air inlet fan and the lower air inlet fan are both axial flow fans.

The air inlet and outlet positions of the cabinet air conditioner indoor unit of this embodiment vary with the different air outlet modes. For example, in the cooling mode, the lower air vent 13 is switched to the air inlet, so that the lower air inlet and upper air outlet are realized; in the heating mode, the upper air vent 11 is switched to the air inlet, so that the upper air inlet and lower air outlet are realized. The switching of the air inlet and outlet is realized with different operation modes. The cabinet air conditioner indoor unit of this embodiment has a single upper air outlet mode, a single lower air outlet mode, and a simultaneous upper and lower air outlet mode. When the cabinet air-conditioning indoor unit is in the single upper air outlet mode, all upper wind shield components 22 close the corresponding upper air duct 213 and connect the corresponding upper air duct with the fan cavity, and all lower wind shield components 23 open the corresponding lower air duct 214 and block the connection between the corresponding lower air duct and the fan cavity; when the cabinet air-conditioning indoor unit is in the single lower air outlet mode, all upper wind shield components 22 open the corresponding upper air duct 213 and block the connection between the corresponding upper air duct and the fan cavity, and all lower wind shield components 23 close the corresponding lower air duct 214 and connect the corresponding lower air duct with the fan cavity; when the cabinet air-conditioning indoor unit is in the upper and lower simultaneous air outlet mode, all upper wind shield components 22 close the corresponding upper air duct 213 and connect the corresponding upper air duct with the fan cavity, and all lower wind shield components 23 close the corresponding lower air duct 214 and connect the corresponding lower air duct with the fan cavity.

Specifically, when the indoor unit of the cabinet air conditioner is in a single upper air outlet mode, all upper wind shielding components 22 will close the corresponding upper air guide ports 213 and connect all upper air ducts with the passages of the corresponding fan cavities, and all lower wind shielding components 23 will open the corresponding lower air guide ports 214 and disconnect the lower air ducts from the passages of the corresponding fan cavities. When the first fan 5 and the second fan 6 are turned on at the same time, a part of the indoor air enters the lower ventilation frame 4 from the lower air port 13, and enters the multiple lower air ducts respectively from the lower ventilation frame 4, and then enters the shell channel 15 from the lower air guide ports 214 corresponding to the lower air ducts, and the other part of the wind enters the shell channel 15 from the upper air inlet 12 and the lower air inlet 14 respectively. After the wind in the shell channel 15 passes through the indoor heat exchanger assembly 7, a part of the wind is sucked into the corresponding fan cavity by the air inlet ends of the multiple fans located on the first shell surface 2014, and the other part of the wind is sucked into the corresponding fan cavity by the air inlet ends of the multiple fans located on the second shell surface 2015. The airflow entering the fan cavity is blown into the upper ventilation frame 3 from the corresponding upper air duct under the action of the fan, and is blown out from the upper air outlet 11 through the upper ventilation frame 3. The airflow path refers to the direction indicated by the arrow in Figure 7. This air outlet method is suitable for cooling mode.

When the indoor unit of the cabinet air conditioner is in the single downward air outlet mode, all upper wind shield components 22 will open the corresponding upper air guide port 213 while disconnecting the passage between the corresponding upper air duct and the corresponding fan cavity, and all lower wind shield components 23 will close the corresponding lower air guide port 214 while connecting the passage between the corresponding lower air duct and the corresponding fan cavity. When the first fan 5 and the second fan 6 are turned on at the same time, a part of the indoor air enters the upper ventilation frame 3 from the upper air port 11, and enters into a plurality of upper air ducts respectively from the upper ventilation frame 3, and then enters into the shell channel 15 from the upper air guide port 213 corresponding to the upper air duct, and another part of the wind enters into the shell channel 15 from the upper air inlet 12 and the lower air inlet 14 respectively. After the wind in the shell channel 15 passes through the indoor heat exchanger assembly 7, a part of the wind is sucked into the corresponding fan cavity by the air inlet end of the plurality of fans located on the first shell surface 2014, and another part of the wind is sucked into the corresponding fan cavity by the air inlet end of the plurality of fans located on the second shell surface 2015. The airflow entering the fan cavity is blown into the lower ventilation frame 4 from the corresponding lower air duct under the action of the fan, and is blown out from the lower air outlet 13 through the lower ventilation frame 4. The airflow path refers to the direction indicated by the arrow in Figure 8. This air outlet method is suitable for heating mode.

When the indoor unit of the cabinet air conditioner is in the upper and lower simultaneous air outlet mode, all upper wind shield components 22 will close the corresponding upper air guide port 213 and connect the corresponding upper air duct with the passage of the corresponding fan cavity; all lower wind shield components 23 will close the corresponding lower air guide port 214 and connect the corresponding lower air duct with the passage of the corresponding fan cavity; when the first fan 5 and the second fan 6 are turned on at the same time, the wind enters the shell channel 15 from the upper air inlet 12 and the lower air inlet 14 respectively; after the wind in the shell channel 15 passes through the indoor heat exchanger assembly 7, a part of it is sucked into the corresponding fan cavity by the air inlet end of the multiple fans located on the first shell surface 2014, and the other part is sucked into the corresponding fan cavity by the air inlet end of the multiple fans located on the second shell surface 2015. The airflow entering the fan cavity is blown into the upper ventilation frame 3 and the lower ventilation frame 4 through the corresponding upper and lower ducts under the action of the fan, and is blown out through the upper ventilation frame 3 and the lower ventilation frame 4 through the upper air outlet 11 and the lower air outlet 13 respectively. The airflow path refers to the direction indicated by the arrow in Figure 9. This air outlet method is suitable for rapid cooling or heating conditions.

In other feasible methods, in the single upper air outlet, single lower air outlet and simultaneous upper and lower air outlet modes, only part of the fans can be controlled to turn on according to the indoor ambient temperature, and the air outlet mode of the indoor unit of the cabinet air conditioner can be executed according to the user's control instructions, or it can be automatically adjusted according to the operating mode of the air conditioner and the indoor ambient temperature.

The cabinet air-conditioning indoor unit of the present embodiment also includes a controller, which is configured to: obtain the indoor ambient temperature and the operating mode of the cabinet air-conditioning indoor unit, determine multiple temperature judgment values according to the operating mode, compare the indoor ambient temperature with the multiple temperature judgment values, and control the air outlet mode of the cabinet air-conditioning indoor unit and the start-up status of multiple fans according to the comparison result.

In this embodiment, the housing 1 is provided with an environmental temperature sensing package to detect the indoor ambient temperature. The indoor ambient temperature can be detected in real time or once every set time. The indoor ambient temperature is the average value of multiple temperature detection values. The operation mode is determined according to the user's control instruction. Different operation modes correspond to different multiple temperature judgment values. The temperature judgment value can be pre-stored in the program of the air conditioner according to the test results, or it can be calculated according to the temperature set by the user. For example, in the cooling mode, the temperature set by the user is 24°C, and the temperature judgment value corresponding to the cooling mode is 23°C and 25°C; in the heating mode, the temperature set by the user is 32°C, and the temperature judgment value corresponding to the heating mode is 31°C and 33°C. After determining multiple temperature judgment values, the obtained indoor ambient temperature is compared with the multiple temperature judgment values respectively, and then the air outlet mode of the cabinet air conditioner indoor unit and the start-up state of multiple fans are controlled according to the comparison results.

In some embodiments, the plurality of fan chambers of the air duct shell 21 are staggered along the height direction of the air duct shell 21. In the cooling mode, the temperature judgment value corresponding to the cooling mode is the first set temperature and the second set temperature, and the first set temperature> the second set temperature. When the indoor ambient temperature> the first set temperature, the indoor ambient temperature is relatively high. In order to achieve rapid cooling, the controller controls the air outlet mode of the cabinet air conditioner indoor unit to be the upper and lower simultaneous air outlet mode, and controls all fans to start and run at the same time to improve the cooling efficiency. When the second set temperature ≤ the indoor ambient temperature ≤ the first set temperature, the indoor ambient temperature enters the comfortable temperature. The controller controls the air outlet mode of the cabinet air conditioner indoor unit to be the single upper air outlet mode. Since the fan located at the bottom is far away from the upper air outlet 11, the contribution of the fan located at the bottom to the air volume is less than that of the fan located at the top. At this time, the fan located at the top is also controlled to start and run, and the fan located at the bottom is controlled to stop running, so as to reduce energy consumption, reduce the cooling capacity and avoid excessive cooling of the indoor temperature. When the indoor ambient temperature is less than the second set temperature, the indoor ambient temperature is too cold, and the controller controls the air outlet mode of the cabinet air-conditioning indoor unit to be a single upper air outlet mode. Since the fan located at the lower part is far from the upper air outlet 11, the contribution of the fan located at the lower part to the air volume is smaller than that of the fan located at the upper part. At this time, the fan located at the upper part is also controlled to stop running, and the fan located at the lower part is controlled to start running, so as to further reduce the operating power consumption, while avoiding further reduction of the indoor ambient temperature and improving the comfort of the indoor environment.

In the heating mode, the temperature judgment values corresponding to the heating mode are the third set temperature and the fourth set temperature, and the third set temperature is less than the fourth set temperature. When the indoor ambient temperature is less than the third set temperature, the indoor ambient temperature is relatively low. In order to achieve rapid heating, the controller controls the air outlet mode of the cabinet air-conditioning indoor unit to be a simultaneous upper and lower air outlet mode, and controls all fans to start and run at the same time to improve the heating efficiency. When the third set temperature ≤ indoor ambient temperature ≤ fourth set temperature, the indoor ambient temperature enters a comfortable temperature. The controller controls the air outlet mode of the cabinet air-conditioning indoor unit to be a single lower air outlet mode. Since the fan located at the top is far away from the downwind outlet 13, the contribution of the fan located at the top to the air volume is less than that of the fan located at the bottom. At this time, the fan located at the bottom is also controlled to start and run, and the fan located at the top is controlled to stop running to reduce energy consumption and reduce the heating amount to avoid overheating of the indoor temperature. When the indoor ambient temperature is greater than the fourth set temperature, the indoor ambient temperature is overheated, and the controller controls the air outlet mode of the cabinet air-conditioning indoor unit to be a single downward air outlet mode. Since the fan located at the upper part is far from the downwind outlet 13, the contribution of the fan located at the upper part to the air volume is smaller than that of the fan located at the lower part. At this time, the fan located at the lower part is also controlled to stop running, and the fan located at the upper part is controlled to start running, so as to further reduce the operating power consumption, while avoiding further increase in the indoor ambient temperature and improving the comfort of the indoor environment.

Among them, when the cabinet air-conditioning indoor unit is in the single upper air outlet mode, the controller controls all upper wind shield components 22 to close the corresponding upper air duct 213, and all lower wind shield components 23 to open the corresponding lower air duct 214; when the cabinet air-conditioning indoor unit is in the single lower air outlet mode, the controller controls all upper wind shield components 22 to open the corresponding upper air duct 213, and all lower wind shield components 23 to close the corresponding lower air duct 214; when the cabinet air-conditioning indoor unit is in the upper and lower simultaneous air outlet mode, the controller controls all upper wind shield components 22 to close the corresponding upper air duct 213, and all lower wind shield components 23 to close the corresponding lower air duct 214.

The control process of this embodiment is described in detail below by taking the example that the air duct assembly 2 is provided with two air ducts, wherein a first air duct 201 and a second air duct 202 which are independent of each other are provided in the air duct shell 21, a first fan 5 is provided in the fan cavity of the first air duct 201, a second fan 6 is provided in the fan cavity of the second air duct 202, and the first fan 5 is located above the second fan 6.

When the cabinet air-conditioning indoor unit operates in cooling mode, when the indoor ambient temperature is greater than the first set temperature, the controller controls the air outlet mode of the cabinet air-conditioning indoor unit to be a simultaneous upper and lower air outlet mode, and controls both the first fan 5 and the second fan 6 to start and run; when the second set temperature is ≤ the indoor ambient temperature ≤ the first set temperature, the controller controls the air outlet mode of the cabinet air-conditioning indoor unit to be a single upper air outlet mode, controls the first fan 5 to start and run, and controls the second fan 6 to stop running; when the indoor ambient temperature is less than the second set temperature, the controller controls the air outlet mode of the cabinet air-conditioning indoor unit to be a single upper air outlet mode, controls the first fan 5 to stop running, and controls the second fan 6 to start and run.

When the cabinet air-conditioning indoor unit operates in heating mode, when the indoor ambient temperature is less than the third set temperature, the controller controls the air outlet mode of the cabinet air-conditioning indoor unit to be a simultaneous upper and lower air outlet mode, and controls both the first fan 5 and the second fan 6 to start and run; when the third set temperature ≤ the indoor ambient temperature ≤ the fourth set temperature, the controller controls the air outlet mode of the cabinet air-conditioning indoor unit to be a single lower air outlet mode, controls the second fan 6 to start and run, and controls the first fan 5 to stop running; when the indoor ambient temperature is greater than the fourth set temperature, the controller controls the air outlet mode of the cabinet air-conditioning indoor unit to be a single lower air outlet mode, controls the second fan 6 to stop running, and controls the first fan 5 to start and run.

In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example 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 specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

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

Claims (10)

1. An air duct assembly (2), characterized in that the air duct assembly (2) comprises:

the air duct shell (21) is internally divided into a plurality of air ducts, each air duct comprises an upper air duct, a fan cavity and a lower air duct which are sequentially communicated from top to bottom, the air duct wall of each upper air duct is provided with an upper air guide opening (213), and the air duct wall of each lower air duct is provided with a lower air guide opening (214);

The fans are arranged in the fan cavities of the air channels in a one-to-one correspondence mode, and are centrifugal fans;

A plurality of upper wind shielding members (22) and a plurality of lower wind shielding members (23), wherein the plurality of upper wind shielding members (22) are arranged at upper wind guide openings (213) of the plurality of wind channels in a one-to-one correspondence manner, and the upper wind shielding members (22) are designed to block communication between the upper wind channel and the fan cavity while opening the upper wind guide openings (213) or to allow communication between the upper wind channel and the fan cavity while closing the upper wind guide openings (213); the lower wind shielding components (23) are arranged at the lower air guide openings (214) of the air channels in a one-to-one correspondence mode, and the lower wind shielding components (23) are designed to block the communication between the lower air channel and the fan cavity while opening the lower air guide openings (214) or to enable the lower air channel to be communicated with the fan cavity while closing the lower air guide openings (214).

2. The air duct assembly (2) according to claim 1, wherein the plurality of fan cavities of the air duct housing (21) are arranged offset in a height direction, a width direction and/or a thickness direction of the air duct housing (21).

3. The air duct assembly (2) of claim 1 wherein said upper air duct extends obliquely upward within said air duct housing (21) and said lower air duct extends obliquely downward within said air duct housing (21), said upper air duct extending in a direction opposite to that of said lower air duct within said air duct housing (21);

The extending directions of the plurality of upper air channels of the air channel shell are the same, and the extending directions of the plurality of lower air channels of the air channel shell are the same.

4. The air duct assembly (2) of claim 1, wherein the air duct walls of two adjacently disposed upper air ducts are at least partially conforming, and the air duct walls of two adjacently disposed lower air ducts are at least partially conforming.

5. A cabinet air conditioner indoor unit, the cabinet air conditioner indoor unit comprising:

The device comprises a shell (1), wherein an upper air inlet (12) and an upper air inlet (11) are formed in the upper part of the shell (1), and a lower air inlet (14) and a lower air inlet (13) are formed in the lower part of the shell (1);

The air duct assembly (2) of any of claims 1-4, disposed within the housing (1), the air duct assembly (2) and the housing (1) forming a housing channel (15) therebetween, the upper air duct being in communication with the upper air port (11) and the upper air duct being in communication with the housing channel (15) when the upper air baffle member (22) opens the upper air guide port (213), the lower air duct being in communication with the lower air port (13) and the lower air duct being in communication with the housing channel (15) when the lower air baffle member (23) opens the lower air guide port (214), the upper air inlet (12) and the lower air inlet (14) both being in communication with the housing channel (15);

the heat exchanger component (7) is arranged in the shell channel (15) and is used for exchanging heat for air flow flowing through the shell channel (15), and the air flow after heat exchange of the heat exchanger component (7) enters the air duct component (2).

6. The indoor unit of claim 5, wherein the indoor unit of the cabinet air conditioner has a single upper air outlet mode, a single lower air outlet mode, and an upper and lower simultaneous air outlet mode;

when the cabinet air conditioner indoor unit is in the single upper air outlet mode, all upper wind shielding components (22) close corresponding upper air guide openings (213) and simultaneously enable corresponding upper air channels to be communicated with the fan cavity, and all lower wind shielding components (23) open corresponding lower air guide openings (214) and simultaneously block communication between corresponding lower air channels and the fan cavity;

When the cabinet air conditioner indoor unit is in the single lower air outlet mode, all upper wind shielding components (22) open corresponding upper air guide openings (213) and block communication between the corresponding upper air channels and the fan cavity, and all lower wind shielding components (23) close corresponding lower air guide openings (214) and simultaneously enable the corresponding lower air channels to be communicated with the fan cavity;

when the cabinet air conditioner indoor unit is in the mode of simultaneously discharging air from the upper side and the lower side, all upper wind shielding components (22) close corresponding upper air guide openings (213) and simultaneously enable corresponding upper air channels to be communicated with the fan cavity, and all lower wind shielding components (23) close corresponding lower air guide openings (214) and simultaneously enable corresponding lower air channels to be communicated with the fan cavity.

7. The indoor unit of claim 6, wherein the duct housing (21) includes a first housing face (2014) and a second housing face (2015) disposed along the fan cavity axial direction, the heat exchanger assembly (7) includes two heat exchange members, one of the two heat exchange members being located between the first housing face (2014) and the housing (1), the other of the two heat exchange members being located between the second housing face (2015) and the housing (1).

8. A cabinet air conditioner indoor unit according to claim 7, wherein the heat exchange member is a plate heat exchange member comprising an upper heat exchange section (71 a) and a lower heat exchange section (71 b), and the included angle between the heat exchange surface of the upper heat exchange section (71 a) and the heat exchange surface of the lower heat exchange section (71 b) is in the range of more than 90 degrees and less than or equal to 180 degrees.

9. The indoor unit of claim 7, wherein the first shell surface (2014) and the second shell surface (2015) are disposed toward left and right sides of the casing (1), respectively.

10. The cabinet air-conditioning indoor unit according to claim 6, further comprising an upper ventilation frame (3) and a lower ventilation frame (4), wherein the upper ventilation frame (3) is disposed in the housing (1) and is located between the upper air port (11) and the air port assembly (2), the upper ventilation frame (3) communicates all upper air ports with the upper air port (11), and the lower ventilation frame (4) is disposed in the housing (1) and is located between the lower air port (13) and the air port assembly (2), and the lower ventilation frame (4) communicates all lower air ports with the lower air port (13).