CN111594923A

CN111594923A - Air conditioning equipment

Info

Publication number: CN111594923A
Application number: CN202010392938.8A
Authority: CN
Inventors: 赵健聪; 邵家成; 林德贤; 罗文君; 赵霆
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2020-08-28

Abstract

The invention discloses air conditioning equipment which comprises a return air duct, a fresh air duct, a heat exchange assembly, an air door assembly and an air supply device. The return air duct comprises a first main air duct connected with the upper air inlet, a second main air duct connected with the lower air inlet, a first sub air duct and a second sub air duct, wherein the first sub air duct and the second sub air duct extend between the first main air duct and the second main air duct. The heat exchange assembly is arranged in the first main air duct and the second main air duct. The air supply device can supply air from the upper air inlet to the lower air inlet through the first main air duct and the first sub air duct when heating; when refrigeration is carried out, air can be supplied to the upper air inlet through the second main air duct and the second sub air duct from the lower air inlet. The air door assembly is used for controlling the communication between the first main air duct and the first sub air duct or the second sub air duct; and the air conditioner is also used for controlling the communication between the second main air duct and the first sub air duct or the second sub air duct. The fresh air duct is connected to the return air duct, and a connector of the fresh air duct is located between the first heat exchanger and the second heat exchanger. The device can improve user comfort.

Description

Air conditioning equipment

Technical Field

The invention relates to the technical field of air conditioners, in particular to air conditioning equipment.

Background

The air conditioner is an indoor temperature and humidity adjusting device commonly used at present, and can blow cold air or hot air from the room according to requirements. An air conditioner generally includes an air outlet and an air inlet, and the air outlet is used for blowing cold air or hot air. On an air conditioner control machine, an air outlet and an air inlet are generally arranged on a shell of a cabinet machine, and the air outlet is generally positioned above the air conditioner control machine, and the air inlet is generally positioned below the air conditioner control machine.

The air outlet and the air inlet of the existing air conditioner can not be switched with each other, and cold air or hot air is blown out from the upper part. In view of the fact that hot air is lighter than cold air and the hot air is located at a higher position than the cold air, when the air conditioner is in the heating mode, hot air blown out from above stays at a higher position in a room and is not beneficial to being uniformly mixed with the cold air at a lower position, so that the indoor temperature rise speed is slow, and the user experience is poor. In addition, the concentration of carbon dioxide caused by the activity of people is increased, and the comfort of people is reduced when the position where fresh air can not be changed or the fresh air is not properly arranged.

Disclosure of Invention

In view of the above, the present invention provides an air conditioning apparatus to solve the above problems, specifically:

the invention discloses an air conditioning device, which comprises a return air duct, a fresh air duct, a heat exchange assembly, an air door assembly and an air supply device, wherein:

the air return duct extends along the height direction of the air conditioning equipment, an upper air inlet is formed in the upper end of the air return duct, a lower air inlet is formed in the lower end of the air return duct, and the upper air inlet and the lower air inlet can be switched into an air inlet and an air outlet;

the return air duct comprises a first main air duct connected with the upper air inlet, a second main air duct connected with the lower air inlet, and a first sub air duct and a second sub air duct which extend between the first main air duct and the second main air duct;

the heat exchange assembly comprises a first heat exchanger and a second heat exchanger, wherein the first heat exchanger is arranged in the first main air duct, and the second heat exchanger is arranged in the second main air duct;

the air supply device comprises a first fan and a second fan, wherein the first fan is arranged in the first sub-air duct and is used for supplying air from the upper air inlet to the lower air inlet through the first main air duct and the first sub-air duct when the air conditioning equipment heats; the second fan is arranged in the second sub air duct and used for supplying air from the lower air inlet to the upper air inlet through the second main air duct and the second sub air duct when the air conditioning equipment is used for refrigerating;

the air door assembly comprises a first air door and a second air door, the first air door is arranged in the first main air duct and is one side of the first heat exchanger, which is far away from the air inlet, so as to control the communication between the first main air duct and the first sub air duct or the second sub air duct; the second air door is arranged in the second main air duct and is one side of the second heat exchanger, which is far away from the air outlet, so as to control the communication between the second main air duct and the first sub air duct or the second sub air duct;

the fresh air duct is connected to the return air duct, and a connecting port of the fresh air duct is located between the first heat exchanger and the second heat exchanger.

As a further alternative it is possible that,

the first fan and the second fan are matched with each other to divide the first sub-air duct and the second sub-air duct into a first sub-air duct and a second sub-air duct.

As a further alternative it is possible that,

the clapboard component comprises an upper clapboard, a middle clapboard and a lower clapboard which are connected in sequence,

the upper partition plate is arranged in the first main air duct and is used for dividing the lower section of the first main air duct into an upper section of a first sub air duct and an upper section of a second sub air duct;

the middle partition plate is used for separating the inlet of the first fan from the inlet of the second fan between the first fan and the second fan;

the lower partition plate is arranged in the second main air duct and is used for separating the upper section of the second main air duct into the lower section of the first sub air duct and the lower section of the second sub air duct;

the upper section of the first sub-air flue, the inlet of the first fan, the outlet of the first fan and the lower section of the first sub-air flue are communicated in sequence; the lower section of the second sub-air duct, the inlet of the second fan, the outlet of the second fan and the upper section of the second sub-air duct are communicated in sequence.

As a further alternative it is possible that,

the first fan includes a first volute and a first motor assembly disposed in the first volute, wherein: the inlet of the first volute is communicated with the upper section of the first sub-air duct; the outlet of the first volute is communicated with the lower section of the first sub-air duct,

the second fan includes a second volute and a second motor assembly disposed in the first volute, wherein: the inlet of the second volute is communicated with the lower section of the second sub-air duct; the outlet of the second volute is communicated with the upper section of the second sub-air duct.

As a further alternative it is possible that,

the first air door is arranged at the upper end of the upper partition plate; the second air door is arranged at the lower end of the lower partition plate.

As a further alternative it is possible that,

the first heat exchanger is arranged between the first air door and the air inlet; the second heat exchanger is arranged between the second air door and the lower air opening.

As a further alternative it is possible that,

and the connecting port of the fresh air duct is positioned between the second air door and the second heat exchanger.

As a further alternative it is possible that,

the air conditioning equipment also comprises a control unit which is respectively and electrically connected with the heat exchange assembly, the air door assembly and the air supply device,

when the air conditioning equipment heats, the control unit controls the heat exchange assembly to operate, starts a first fan in the air supply device and controls the air door assembly to close the second sub-air channel; when the air conditioning equipment refrigerates, the control unit controls the heat exchange assembly to operate, starts a second fan in the air supply device, and controls the air door assembly to close the first sub-air channel.

As a further alternative it is possible that,

the air conditioning equipment also comprises a fresh air component, the fresh air component comprises a fresh air inlet and a fresh air outlet,

wherein the fresh air inlet is positioned outside the chamber; the fresh air outlet is communicated with the fresh air duct.

As a further alternative it is possible that,

the control unit still with the new trend subassembly electricity is connected, wherein: when the air conditioning equipment runs in a fresh air exchange mode, the control unit controls the fresh air component to send fresh air into the room through the return air duct.

Has the advantages that: the air conditioning equipment provided by the invention optimizes the mounting position of the fresh air module for total heat exchange, and switches the corresponding air inlet position and the air outlet position according to the two modes of refrigeration and heating. When the fresh air is changed and the refrigeration or heating is carried out, the use experience and the comfort level of a user can be improved.

Drawings

The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings. The drawings described below are merely some embodiments of the present disclosure, and other drawings may be derived from those drawings by those of ordinary skill in the art without inventive effort.

Fig. 1 is a schematic view showing an internal structure of an air conditioning apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a cooling supply air flow path of an air conditioning unit in accordance with an embodiment of the present invention;

fig. 3 is a schematic view showing a flow path of heating air supply of the air conditioning apparatus according to the embodiment of the present invention.

In the figure: 11-a first main air duct; 111-air inlet; 112-inlet of first fan; 113-an outlet of a second fan; 12-a second main air duct; 121-lower tuyere; 122 — outlet of first fan; 123-an inlet of a second fan; 21-a first damper; 22-a second damper; 231-a first volute; 232-a first motor assembly; 241-a second volute; 242-a second motor assembly; 3-a connector of a fresh air duct; 41-a first heat exchanger; 42-a second heat exchanger; 51-an upper separator; 52-a middle separator plate; 53-lower baffle.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar parts in the drawings, and thus, a repetitive description thereof will be omitted.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the disclosure.

The block diagrams shown in the figures are functional entities only and do not necessarily correspond to physically separate entities. I.e. these functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor means and/or microcontroller means.

It will be understood that, although the terms first, second, third, etc. may be used herein to describe various structures, these structures should not be limited by these terms. These terms are used to distinguish one structure from another structure. Thus, a first structure discussed below may be termed a second structure without departing from the teachings of the disclosed concept. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

It is to be understood by those skilled in the art that the drawings are merely schematic representations of exemplary embodiments, and that the blocks or processes shown in the drawings are not necessarily required to practice the present disclosure and are, therefore, not intended to limit the scope of the present disclosure.

The air outlet mode of the existing air conditioner is relatively fixed, namely, if the hot air or the cold air adopts a mode of lower air inlet and upper air outlet, and because the hot air is lighter than the cold air and the hot air is located at a higher position than the cold air, when the air conditioner is in a heating mode, the hot air blown out from the upper part stays at a higher position in a room and cannot be automatically and uniformly mixed with the cold air at a lower position, so that the indoor temperature rise speed is slow, and the user experience is poor; due to indoor wind circulation, the carbon dioxide concentration is increased along with the activity of people, and then the user experience is reduced. Therefore, the invention improves the existing air conditioner, designs a double-centrifugal duct type air duct cabinet machine, and can realize that air enters the air conditioner from the lower end in a room and is sent out from the top in refrigeration; when heating, air enters the air conditioner from the upper end of the room and is sent out from the bottom; and the fresh air module is positioned at the lower part of the air conditioner, but the fresh air outlet is arranged between the two heat exchangers, so that the fresh air can be subjected to heat exchange with the maximum efficiency.

To further illustrate the improvements utilized in the present invention, reference is made to FIGS. 1-3, which show specific examples as follows. It should be noted that the air conditioning equipment may be a fresh air cabinet.

In the present embodiment, there is provided an air conditioning apparatus including: return air wind channel, new trend wind channel, heat exchange assemblies, air door subassembly and air supply arrangement. Based on this return air wind channel structure, combine the cooperation that sets up double fan, double heat exchanger and air door subassembly, insert between two heat exchangers in the return air wind channel with the new trend wind channel, no matter the air supply direction is the upper-inlet lower-outlet, still advances from top to bottom, all carries out the heat exchange with air in the air conditioner and is unlikely to blow off the cabinet-type air conditioner inconsistent with the inside temperature of air conditioner to can cooperate the refrigeration or heat the in-process and carry out the switching of business turn over wind.

Specifically, the method comprises the following steps: the return air duct extends in the height direction of the air conditioning apparatus, and has an upper air inlet 111 at the upper end thereof and a lower air inlet 121 at the lower end thereof. The upper air inlet 111 and the lower air inlet 121 can be switched to an air inlet and an air outlet. The return air duct includes a first main duct 11 connected to the upper air inlet 111, a second main duct 12 connected to the lower air inlet 121, and a first sub-duct and a second sub-duct extending between the first main duct 11 and the second main duct 12. The heat exchange assembly includes a first heat exchanger 41 and a second heat exchanger 42, wherein the first heat exchanger 41 is disposed in the first main air duct 11, and the second heat exchanger 42 is disposed in the second main air duct 12. The air supply device comprises a first fan and a second fan, wherein the first fan is arranged in the first sub-air duct and is used for supplying air from the upper air inlet 111 to the lower air inlet 121 through the first main air duct 11 and the first sub-air duct when the air conditioning equipment heats; the second fan is disposed in the second sub-air duct, and the second fan is used for supplying air from the lower air inlet 121 to the upper air inlet 111 through the second main air duct 12 and the second sub-air duct when the air conditioning equipment performs refrigeration. The air door assembly comprises a first air door 21 and a second air door 22, the first air door 21 is arranged in the first main air duct 11 and is one side of the first heat exchanger away from the air inlet 111, so as to control the communication between the first main air duct 11 and the first sub air duct or the second sub air duct; the second damper 22 is disposed in the second main air duct 12 and on a side of the second heat exchanger away from the air outlet 121, for controlling communication between the second main air duct 12 and the first sub air duct or the second sub air duct. The new wind channel is connected on the return wind channel, and the connector 3 of the new wind channel is positioned between the first heat exchanger and the second heat exchanger.

In some optional implementations, based on the first main air duct 11 and the second main air duct 12 in the return air duct, a partition plate assembly may be adopted to partition a middle section portion (between the two main air ducts) of the return air duct after being matched with the first fan and the second fan, so as to form a first sub air duct and a second sub air duct which are connected between the two main air ducts in an extending manner.

Preferably, the diaphragm assembly includes an upper diaphragm 51, a middle diaphragm 52 and a lower diaphragm 53 connected in sequence. The upper partition plate 51 is arranged in the first main air duct 11, and divides the lower section of the first main air duct 11 into the upper section of the first sub air duct and the upper section of the second sub air duct; the intermediate partition 52 separates the inlet 112 of the first fan and the inlet 123 of the second fan between the first fan and the second fan; the lower partition 53 is disposed in the second main duct 12, and separates an upper section of the second main duct 12 into a lower section of the first sub-duct and a lower section of the second sub-duct.

At this time, the upper section of the first sub-air duct, the inlet 112 of the first fan, the outlet 122 of the first fan and the lower section of the first sub-air duct are sequentially communicated to form an air supply flow path; the lower section of the second sub-air duct, the inlet 123 of the second fan, the outlet 113 of the second fan and the upper section of the second sub-air duct are communicated in sequence to form another air supply flow path.

For the installation in cooperation wind channel to can realize can from top to bottom the air supply, by the switching air supply mode of supreme air supply down, in this embodiment, what air supply mechanism adopted is two independent fans, foretell promptly: a first fan and a second fan. Correspondingly, a first sub-air channel and a second sub-air channel are respectively formed in the return air channel after the two fans are matched with the partition plate assembly, and the first fan and the second fan are connected in a reverse parallel mode. At this time, the inlet 112 of the first fan can be communicated with the first main air duct 11, and the outlet 122 of the first fan can be communicated with the second main air duct 12; the inlet 123 of the second fan can communicate with the second main duct 12, and the outlet 113 of the second fan can communicate with the first main duct 11.

Further, the first fan includes a first volute 231 and a first motor assembly 232 disposed in the first volute 231, wherein: the inlet of the first volute is communicated with the upper section of the first sub-air duct; the outlet of the first volute is communicated with the lower section of the first sub-air duct. The second fan includes a second scroll case 241 and a second motor assembly 242 provided in the first scroll case 241, wherein: the inlet of the second volute is communicated with the lower section of the second sub-air duct; the outlet of the second volute is communicated with the upper section of the second sub-air duct.

Meanwhile, in order to ensure the uniformity of air inlet and outlet of the two sub-air channels, two fan motors are coaxially and oppositely arranged, the corresponding first volute and the second volute are also oppositely arranged, and a shared space is formed between the two volutes. The middle partition plate 52 is arranged in the common space and symmetrically divides the common space into a first space and a second space, wherein the first space is used for communicating the upper section of the first sub-air duct with the inlet of the first volute; the second space is used for communicating the lower section of the second sub-air duct with the inlet of the second volute. As shown in fig. 1, optionally, the middle partition 52 is disposed obliquely and connected to the upper partition 51 and the lower partition 53, respectively, so that the shared space inside the air duct forms completely independent bidirectional passages with the upper air duct 11 and the lower air duct. This design still makes the structure compacter when guaranteeing that the entry of two fans has great space, can not occupy too much space satisfying double fan installation requirement. Through the double-channel matched double-cavity design, one air supply flow path is used as an air supply flow path from the upper air inlet 111 to the lower air inlet 121, and the other air supply flow path is used as an air supply flow path from the lower air inlet 121 to the upper air inlet 111.

Preferably, the first damper is provided at an upper end of the upper partition; the second air door is arranged at the lower end of the lower partition plate.

In an alternative scheme, the volutes of the two fans can be directly matched with the middle partition plate, the two motors are coaxially arranged in opposite directions, the inlets of the two volutes are arranged in opposite directions, the downward two ends of the middle partition plate are respectively connected to the lower side of the inlet of the first volute and the upper side of the inlet of the second volute, and the left and right ends of the middle partition plate are connected and matched with the inner sides of the two walls of the return air duct; the outlet of the first volute extends into the second main air duct, and occupies half of the inner space of the upper section of the second main air duct, and the other half of the inner space is reserved for the air inlet of the second fan (equivalent to the lower section of the second sub-air duct); the outlet of the second volute extends into the first main air duct, occupies half of the inner space of the lower section of the first main air duct, and the other half of the inner space is reserved for air inlet of the first fan (equivalent to the upper section of the first sub-air duct). In the mode, the upper partition plate and the lower partition plate are omitted, so that the structure is simpler, and the air supply flow path in the return air duct can be switched. Correspondingly, the first air door can be arranged at the outlet of the second volute, when the outlet of the second volute is closed, the inlet of the first volute is correspondingly opened, otherwise, the inlet of the first volute is closed when the outlet of the second volute is opened; and the second air door is arranged at the outlet of the first volute, when the outlet of the first volute is closed, the inlet of the second volute is correspondingly opened, otherwise, the inlet of the second volute is closed when the outlet of the first volute is opened.

In a preferred implementation mode, in order to improve the heat exchange efficiency and ensure that the air inlet and the air outlet at the two ends can be heated or cooled by the heat exchanger, the first heat exchanger is arranged between the first air door and the upper air inlet; the second heat exchanger is arranged between the second air door and the lower air opening. And a connecting port of the fresh air duct is positioned between the second air door and the second heat exchanger.

The air conditioning equipment in this embodiment also includes a control unit, which is electrically connected with the heat exchange assembly, the air door assembly and the air supply device respectively, wherein: when the air conditioning equipment heats, the control unit controls the heat exchange assembly to operate, starts a first fan in the air supply device and controls the air door assembly to close the second sub-air duct; when the air conditioning equipment refrigerates, the control unit controls the heat exchange assembly to operate, starts a second fan in the air supply device, and controls the air door assembly to close the first sub-air channel. Further, the control unit still is connected with new trend subassembly electricity, wherein: when the air conditioning equipment operates in a fresh air exchange mode, the control unit controls the fresh air component to send fresh air into the room through the return air duct.

In the working process, the control unit in the air conditioning equipment can control the double heat exchangers to work simultaneously, so that the refrigerating or heating efficiency is enhanced. The fresh air can be heated or cooled before entering the room through the connecting port of the fresh air duct connected between the two heat exchangers, so that the temperature of the supplied air sent into the room is not influenced. It should be noted that a single heat exchanger can also be used for working, energy consumption can be reduced in this way, and correspondingly, only the second heat exchanger is operated during heating; during cooling, only the first heat exchanger is operated.

When the air conditioning equipment is the fresh air cabinet, combine each component part among the above-mentioned air conditioning equipment still to provide other concrete subassemblies of fresh air cabinet to the working process of fresh air cabinet has made further explanation, specifically as follows:

the fresh air cabinet machine comprises the following main parts: the air conditioner comprises a first volute, a second volute, a partition plate assembly, a first motor assembly, a second motor assembly, air baffles (a first air door and a second air door), a first heat exchanger, a second heat exchanger, a fresh air assembly and the like. Each motor assembly includes: the motor mounting plate, the motor and the centrifugal fan blade; the air duct in the embodiment adopts a duct type air duct, the duct is matched with the fan assembly to form a double-centrifugal duct type air duct, and the upper end and the lower end of the air duct are respectively provided with a ventilation through hole which has different functions according to different working states. The deep bead can carry out the separation to wind when different operating condition to the realization carries out the function switch to ventilation through hole. Namely: and the air inlet and the air outlet are switched. The two motor assemblies are respectively arranged on the first volute and the second volute and respectively work independently without mutual interference. A partition is located between the two volutes for dividing the ventilation passage (common space) common to the middles. Fresh air component: the fresh air component comprises a fresh air inlet and a fresh air outlet, and the fresh air inlet is positioned outside the room; the fresh air outlet is communicated with the fresh air duct, and the fresh air is introduced into the return air duct through a connector of the fresh air duct. The connection port of the fresh air component is optimally arranged between the two heat exchangers; if the heat exchanger is installed outside two heat exchangers, the heat exchange efficiency is reduced.

When the fresh air cabinet machine is in a refrigeration mode, air enters from the lower end of the air duct and flows through the lower heat exchanger (second heat exchanger), the second fan and the upper heat exchanger (first heat exchanger) and then flows out from the ventilation through hole at the upper end. Namely: in the refrigeration mode, the lower air inlet is an air inlet, and the upper air inlet is an air outlet. At this time, the upper wind shield is in an outlet state (closing the inlet of the first fan) of opening the second fan, and the lower wind shield is in an outlet state (opening the inlet of the second fan) of closing the first fan. The motor component of the first volute is in a non-working state, and the motor component of the second volute is in a working state.

At the moment, the fresh air component is opened, and fresh air introduced from the outside is exchanged through the upper heat exchanger along with the flowing direction of the airflow, so that the temperature of the indoor environment cannot be greatly changed due to the temperature of the external environment.

When the fresh air cabinet machine is in a heating mode, the fresh air enters from the upper end of the air duct, flows through the upper heat exchanger, the motor assembly and the lower heat exchanger and then flows out from the ventilation through hole at the lower end. Namely: when in the heating mode, the upper ventilation through hole is an air inlet, and the lower ventilation through hole is an air outlet. At the moment, the upper wind shield is in a state of closing the outlet of the second fan (opening the inlet of the first fan), and the lower wind shield is in a state of opening the outlet of the first fan (closing the inlet of the second fan). The motor component of the first volute is in a working state, and the motor component of the second volute is in a non-working state.

At the moment, the fresh air component is opened, and fresh air introduced from the outside is exchanged through the lower heat exchanger along with the flowing direction of the airflow, so that the temperature of the indoor environment cannot be greatly changed due to the temperature of the external environment.

Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that the present disclosure is not limited to the precise arrangements, instrumentalities, or instrumentalities described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. The utility model provides an air conditioning equipment, its characterized in that, includes return air wind channel, new trend wind channel, heat exchange assemblies, air door subassembly and air supply arrangement, wherein:

2. The air conditioning unit of claim 1, further comprising a partition assembly that cooperates with the first and second fans to separate the first and second sub-ducts in the return air duct.

3. The air conditioning apparatus of claim 2, wherein the partition plate assembly includes an upper partition plate, a middle partition plate, and a lower partition plate connected in this order,

4. The air conditioning apparatus according to claim 3,

5. The air conditioning apparatus according to claim 4, characterized in that the first damper is provided at an upper end of the upper partition; the second air door is arranged at the lower end of the lower partition plate.

6. The air conditioning apparatus according to claim 5, wherein the first heat exchanger is disposed between the first damper and the intake; the second heat exchanger is arranged between the second air door and the lower air opening.

7. The air conditioning apparatus of claim 6, wherein the connection port of the fresh air duct is located between the second damper and the second heat exchanger.

8. The air conditioning apparatus according to any one of claims 1 to 7, further comprising a control unit electrically connected to the heat exchange assembly, the damper assembly, and the air blowing device, respectively,

9. The air conditioning unit of claim 8, further comprising a fresh air component comprising a fresh air inlet and a fresh air outlet,

10. The air conditioning apparatus of claim 9, wherein the control unit is further electrically connected to the fresh air component, wherein: when the air conditioning equipment runs in a fresh air exchange mode, the control unit controls the fresh air component to send fresh air into the room through the return air duct.