CN115614834A

CN115614834A - Air conditioner

Info

Publication number: CN115614834A
Application number: CN202211216191.6A
Authority: CN
Inventors: 崔化超; 李国行; 郝本华; 刘庆赟
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-01-17

Abstract

The invention provides an air conditioner which comprises a shell, a cross flow air duct, a cross flow fan, an exhaust air duct and an exhaust fan. The through-flow air duct is positioned in the shell and provided with an air supply outlet used for blowing heat exchange airflow produced by the air conditioner to the indoor environment, and an air outlet is formed in one axial end of the through-flow air duct. The cross flow fan is positioned in the cross flow air duct and used for blowing heat exchange air flow to the air supply outlet. The air exhaust duct is communicated with the air outlet and used for guiding the indoor air entering the through-flow duct to the outdoor environment. The air exhaust fan is arranged in the air exhaust duct, and the rotating shaft of the air exhaust fan is connected to the end part of the cross flow fan so as to rotate along with the cross flow fan and be used for promoting the air flow in the air exhaust duct to flow. The air conditioner can more quickly realize indoor air renewal.

Description

Air conditioner

Technical Field

The invention relates to the technical field of air conditioning, in particular to an air conditioner.

Background

The current air conditioner has not only basic functions of cooling and heating. To meet the higher level air handling needs of users, some air conditioners have more additional processing functions to further condition the indoor air. For example, some air conditioners have a fresh air function, which can introduce fresh air from the outdoor environment to keep the indoor environment fresh.

However, the existing fresh air conditioner has some defects, the ordinary fresh air conditioner only strongly introduces fresh air flow to increase indoor air pressure, indoor dirty air is discharged outdoors through gaps such as door seams, and air flow updating is realized.

Disclosure of Invention

The object of the present invention is to overcome at least one of the drawbacks of the prior art and to provide an air conditioner capable of more rapidly performing indoor air renewal.

A further object of the present invention is to optimize the exhaust air flow path so that it does not interfere with the normal layout of the associated structure of the heat exchange air flow path.

It is another further object of the present invention to increase the exhaust velocity with a simpler structure.

In particular, the present invention provides an air conditioner, comprising:

a housing;

the cross-flow air duct is positioned in the shell and provided with an air supply outlet for blowing heat exchange air flow prepared by the air conditioner to an indoor environment, and one axial end of the cross-flow air duct is provided with an air outlet;

the cross-flow fan is positioned in the cross-flow air duct and used for blowing the heat exchange air flow to the air supply outlet;

the air exhaust duct is communicated with the air outlet and is used for guiding the indoor air entering the through-flow air duct to the outdoor environment; and

and the air exhaust fan is arranged in the air exhaust air duct, and the rotating shaft of the air exhaust fan is connected to the end part of the cross flow fan so as to rotate along with the cross flow fan and be used for promoting the air flow in the air exhaust air duct to flow.

2. The air conditioner according to claim 1, wherein

The exhaust fan is an axial flow fan.

Optionally, at least one blade is fixedly disposed at an axial end of the crossflow blower, and is configured to blow out an airflow in a direction axially away from the crossflow blower when the crossflow blower is in operation, so that the airflow flows into the exhaust air duct.

Optionally, each of the blades is an axial flow fan blade.

Optionally, the cross-flow air duct is vertically arranged, and the air outlet is located at the lower end of the cross-flow air duct;

the utility model discloses a cross-flow fan, including exhaust port, support ring, cross-flow fan, exhaust port, support ring center, every the support ring is connected with the exhaust port edge, the support ring is located exhaust port center is used for supporting cross-flow fan, every the web connects the support ring with the exhaust port edge.

Optionally, the housing defines a lower chamber below the cross-flow duct, and the exhaust duct is located within the lower chamber.

Optionally, the air conditioner further comprises a fresh air duct, which is arranged in the lower cavity and used for introducing outdoor fresh air;

the fresh air duct is provided with a fresh air inlet and a fresh air outlet, the fresh air inlet is used for being connected with a fresh air pipe connected with an outdoor environment, and the fresh air outlet faces the indoor environment and is used for discharging fresh air.

Optionally, the air conditioner further comprises a fresh air fan, disposed in the lower chamber, for promoting a flow of fresh air flow in the fresh air duct.

Optionally, the fresh air inlet and the outlet of the exhaust air duct are located on the rear side of the housing, and the fresh air outlet is located on the front side of the housing.

Optionally, the fresh air duct comprises an upstream section and a downstream section;

the inlet of the upstream section forms the fresh air inlet, and the outlet of the upstream section is connected with the inlet of the fresh air fan;

the inlet of the downstream section is connected with the outlet of the fresh air fan, and the outlet of the downstream section forms the fresh air outlet.

Optionally, the fresh air fan is a centrifugal fan with an axis extending vertically; and is provided with

The upstream section is located below the fresh air fan, and the downstream section is located in front of the fresh air fan.

The air conditioner is provided with the air exhaust duct, when indoor air needs to be updated, the refrigeration cycle system can be closed, the air supply port of the cross flow duct is closed, indoor dirty air enters the cross flow duct under the action of the cross flow fan, then enters the air exhaust duct from the air exhaust port at the axial end part of the cross flow duct, and is guided to the outdoor environment by the air exhaust duct. The invention discharges the indoor air by arranging the air outlet at the end part of the cross-flow air duct, the air exhaust air path does not interfere the normal layout of the related structure of the heat exchange air flow path (comprising the cross-flow fan, the cross-flow air duct, the air inlet and the air outlet), the radial air inlet and the radial air outlet of the cross-flow fan cannot be blocked, the related structure of the heat exchange air flow path is still skillfully borrowed in the air exhaust process, and the conception is very ingenious.

Furthermore, the air conditioner of the invention also comprises an exhaust fan, wherein a rotating shaft of the exhaust fan is connected with the cross-flow fan so as to rotate along with the cross-flow fan, promote the air flow in the exhaust air duct to flow and accelerate the exhaust process. Because the air exhaust fan is connected with the cross-flow fan, a motor of the air exhaust fan is not required to be configured, and the cost is lower.

Furthermore, the end of the cross-flow fan of the air conditioner is fixed with blades (such as axial flow fan blades) so that the blades rotate along with the cross-flow fan when the cross-flow fan operates to form a small fan, heat exchange air flow in an inner cavity of the cross-flow fan is acted into an air exhaust air duct, air quantity is increased, air exhaust speed is increased, and the structure is ingenious.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic front view of an air conditioner according to an embodiment of the present invention;

FIG. 2 is a schematic right side view of the air conditioner shown in FIG. 1;

fig. 3 is a schematic view of the lower half of the interior of the air conditioner shown in fig. 1;

FIG. 4 is a schematic view showing a substantial structure of a cross-flow duct in the air conditioner shown in FIG. 3;

fig. 5 is a schematic view of a substantial structure of a crossflow blower in the air conditioner shown in fig. 3.

Detailed Description

An air conditioner according to an embodiment of the present invention will be described with reference to fig. 1 to 5. Where the orientations or positional relationships indicated by the terms "front," "back," "upper," "lower," "top," "bottom," "inner," "outer," "lateral," and the like are based on the orientations or positional relationships illustrated in the drawings, the description is for convenience only and to simplify the description, and no indication or suggestion is made that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.

The terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include at least one of the feature, i.e. one or more of the features. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise. When a feature "comprises or includes" a or some of the features that it covers, this is to be taken as an indication that other features are not excluded and that other features may further be included, unless expressly stated otherwise.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and "coupled" and the like are to be construed broadly and can, for example, be fixedly connected or detachably connected or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. Those skilled in the art should understand the specific meaning of the above terms in the present invention according to specific situations.

The embodiment of the invention provides an air conditioner. Air conditioners are used to condition indoor air, including conditioning the temperature, humidity, air quality of the air, humidifying, dehumidifying, introducing fresh air, and the like. The air conditioner can form a vapor compression refrigeration cycle system by an evaporator, a condenser, a compressor, a throttling device and other necessary elements so as to output cold air/hot air through a fan and realize refrigeration and heating of indoor environment.

The air conditioner of the embodiment of the invention can be a household air conditioner and also can be a central air conditioner. Specifically, the specific form of the air conditioner can be various forms such as a split wall-mounted type, a split vertical type, an integral type and a ceiling type. The embodiment of the present invention does not limit the specific form of the air conditioner at all. Fig. 1 to 5 illustrate only an embodiment of a floor type air conditioner.

Fig. 1 is a schematic front view of an air conditioner according to an embodiment of the present invention; FIG. 2 is a schematic right side view of the air conditioner shown in FIG. 1; fig. 3 is a structural view of a lower half of the interior of the air conditioner shown in fig. 1; fig. 4 is a schematic view showing a physical structure of a through-flow duct in the air conditioner shown in fig. 3.

As shown in fig. 1 to 4, an air conditioner according to an embodiment of the present invention may generally include a case 10, a cross flow duct 11, a cross flow fan 60, an exhaust air duct 33, and an exhaust air fan 70.

In which the case 10 defines a structural body of the air conditioner, which defines an accommodating space to accommodate main components of the air conditioner, such as a heat exchanger, a fan, a controller, and the like. A casing 10 of an indoor unit of a split-type floor air conditioner illustrated in fig. 1 and 2.

The through-flow duct 11 is located in the casing 10, and has an air supply opening 112, and the air supply opening 112 is a notch in the peripheral wall of the through-flow duct 11. The air supply outlet 112 is used for delivering the heat exchange airflow generated by the air conditioner to the indoor environment so as to adjust the indoor environment. Specifically, the casing 10 may include a panel constituting an appearance of the air conditioner and a skeleton located inside the panel, and the through-flow duct 11 may be formed by the skeleton. An air outlet 113 is arranged at one axial end of the through-flow air duct 11.

Further, the cross-flow duct 11 may further have an air inlet 111 to allow indoor air to enter the cross-flow duct 11 through the air inlet 111. Both the supply air outlet 112 and the intake air inlet 111 penetrate the housing 10 to face the indoor environment. The air guide device 50 may be disposed at the air supply opening 112 for guiding the air outlet direction of the air supply opening 112.

The cross flow fan 60 is located in the cross flow duct 11 and is used for blowing the heat exchange air flow to the indoor environment through the air blowing port 112 so as to condition the indoor air by the heat exchange air flow. The air conditioner may further include a heat exchanger 40. A heat exchanger 40 is disposed within the housing 10 for exchanging heat with the airflow passing therethrough to form the aforementioned heat exchange airflow. The heat exchanger 40 is a vapor compression refrigeration cycle system and functions as an evaporator during cooling operation and a condenser during heating operation. The heat exchanger 40 may be disposed inside the cross-flow duct 11 or outside the cross-flow duct 11.

The exhaust duct 33 communicates with the exhaust port 113 for guiding the indoor air entering the cross-flow duct 11 to the outdoor environment.

The exhaust fan 70 is disposed in the exhaust duct 33, and a rotating shaft 71 thereof is connected to an end of the cross flow fan 60 to rotate with the cross flow fan 60, so as to promote the flow of the air in the exhaust duct 33 and accelerate the exhaust process. Since the exhaust fan 70 is connected to the cross flow fan 60 and driven by the cross flow fan 60, it is not necessary to provide its own motor, and the cost is low. The exhaust fan 70 may be specifically an axial flow fan.

The air conditioner of the embodiment of the invention is provided with the exhaust air duct 33, when the indoor air needs to be updated, the refrigeration cycle system can be closed, and the air supply opening 112 of the cross flow air duct 11 is closed, so that the indoor dirty air enters the cross flow air duct 11 under the action of the cross flow fan 60, then enters the exhaust air duct 33 from the exhaust opening 113 at the axial end part of the cross flow air duct 11, and is guided to the outdoor environment by the exhaust air duct 33. By "directed" is meant that the exhaust air duct 33 directs the air flow in the direction of the outdoor environment, and it is not necessary that the exhaust air duct 33 be directly connected to the outdoor environment.

For example, as shown in fig. 3, the inlet 330 of the exhaust duct 33 is connected to the exhaust port 113 and then extends toward the casing 10, the casing 10 is opened to be opposite to the outlet 340 of the exhaust duct 33, the external exhaust pipe 81 is detachably connected to the outlet 340 of the exhaust duct 33, and the outlet end of the exhaust pipe 81 extends to the outdoor environment. The present embodiment designs the exhaust duct 81 as a separate component from the case 10, which can facilitate design, manufacture and transportation of the air conditioner.

Because the cross-flow fan is used for radially feeding air and radially discharging air, two axial ends of the conventional cross-flow air duct are closed and do not have a ventilation function. In the embodiment of the invention, the end part of the through-flow air duct 11 is provided with the air outlet 113 to exhaust indoor air, so that the air exhaust air path does not interfere with the normal layout of the related structure of the heat exchange air flow path (comprising the through-flow fan 60, the through-flow air duct 11, the air inlet 111 and the air supply outlet 112), the radial air inlet and air outlet of the through-flow fan 60 cannot be obstructed, the related structure of the heat exchange air flow path is still skillfully borrowed in the air exhaust process, and the conception is ingenious.

The inlet 330, outlet 340 or the interior of the exhaust duct 33 may be provided with a damper structure to close the exhaust duct 33 when exhaust is not required. Various air door structures exist in the air conditioning field, and people in the field can reasonably select the air door structure, so that the detailed description is omitted.

In some embodiments, as shown in fig. 3, the through-flow duct 11 is disposed upright, and the exhaust port 113 is located at the lower end thereof. As shown in fig. 4, the duct walls defining the through-flow duct 11 include a first duct wall 116, a second duct wall (not shown), an upper end wall 118, and a lower end wall 119. The air outlet 113 opens in the lower end wall 119. The exhaust outlet 113 is provided with a support grid 117, the support grid 117 includes a support ring 1171 and a plurality of connecting spokes 1172, the support ring 1171 is located at the center of the exhaust outlet 113 and is used for supporting the cross-flow fan 60, and each connecting spoke 1172 is connected with the support ring 1171 and the edge of the exhaust outlet 113 and plays a supporting role.

As shown in fig. 5, at least one blade 62 may be fixedly disposed at an axial end of the cross-flow fan 60, and is used for blowing the heat exchange air flow in a direction axially away from the cross-flow fan 60 and flowing into the exhaust air duct 33 when the cross-flow fan 60 is in operation. That is, as crossflow blower 60 rotates, the at least one blade 62 also rotates, applying a force to the airflow. In other words, the at least one blade 62 also forms a small fan, so that the air flow from the cavity of the cross-flow fan 60 is applied to the exhaust air path 33. This design cleverly utilizes the conventional rotation of crossflow blower 60 to achieve bi-directional air delivery (both radial and axial). Preferably, as shown in fig. 5, the number of the blades 62 is plural.

As shown in fig. 5, the cross-flow fan 60 includes a plurality of strip-shaped cross-flow blades 61 extending along the axial direction thereof, the plurality of cross-flow blades 61 are arranged at intervals along the circumferential direction of the cross-flow fan 60, and two annular mounting rings 63 are respectively provided at two axial ends of the cross-flow fan 60. The plurality of blades 62 are connected at one end to a radially inner side of a mounting ring 63 and at the other end are gathered at the center of the mounting ring 63 and connected to a mounting shaft 64. The mounting shaft 64 is used to mount the crossflow blower 60 to the lower end wall 119. It will be appreciated that a drive motor is connected to the upper end plate of the crossflow blower 60.

As shown in fig. 5, the blades 62 are preferably axial flow blades, and the entire blades 62 constitute a single small axial flow impeller. The air inlet and the air outlet of the axial flow impeller are parallel to the axial direction of the axial flow impeller, so that the air flow can be sucked out from a cylindrical cavity formed by the through-flow blades 61 more conveniently.

In some embodiments, as shown in FIG. 3, the housing 10 may be defined with a lower chamber 12 below the cross-flow duct 11, and the exhaust duct 33 is located within the lower chamber 12. That is, the through-flow duct 11 is positioned further upward so that the air blowing port 112 is positioned further upward to blow air farther, thereby increasing the air blowing distance and angle. The floor air conditioner can adopt the layout mode.

In some embodiments, as shown in fig. 3, the air conditioner may further include a fresh air duct 30, and the fresh air duct 30 is disposed in the lower chamber 12 for introducing fresh outdoor air. The fresh air duct 30 has a fresh air inlet 310 and a fresh air outlet 320, the fresh air inlet 310 is connected to the fresh air duct 82 connected to the outdoor environment, and the fresh air outlet 320 faces the indoor environment for discharging fresh air. The air conditioner further comprises a fresh air fan 90, wherein the fresh air fan 90 is arranged in the lower chamber 12 and used for promoting the flow of fresh air flow in the fresh air duct 30. The present embodiment, which designs the fresh air duct 82 as a separate component detachably mounted to the casing 10, can facilitate the design, manufacture and transportation of the air conditioner.

Of course, the fresh air inlet 310, the fresh air outlet 320 or the fresh air duct 30 may be provided with an air door therein for opening and closing the fresh air duct 30.

The air conditioner of the embodiment of the invention has the following optional operation modes: when the indoor air needs to be updated, only the fresh air duct 30 and the fresh air fan 90 can be opened, that is, only the outdoor fresh air is actively introduced, so that the indoor dirty air is discharged outdoors through window seams, door seams and the like. The exhaust duct 33 and the cross flow fan 60 may be opened only, that is, only the indoor air is actively exhausted, so that the outdoor fresh air enters the indoor space through the window gap, the door gap, and the like. Of course, outdoor fresh air can be actively introduced and indoor air can be exhausted simultaneously, so that the fresh air exchange process is faster.

In some embodiments, as shown in fig. 3, the fresh air inlet 310 and the outlet 340 of the exhaust air duct 33 may be located at the rear side of the casing 10, so that the exhaust duct 81 and the fresh air duct 82 connected thereto are hidden at the rear of the air conditioner, and do not affect the appearance of the air conditioner, and at the same time, the exhaust duct 81 and the fresh air duct 82 can extend along the wall and protrude out of the room through a wall hole or the like. The fresh air outlet 320 is located at the front side of the casing 10 so as to output fresh air forward.

In some embodiments, as shown in FIG. 3, the fresh air duct 30 may include an upstream segment 31 and a downstream segment 32. Wherein, the inlet of the upstream section 31 constitutes a fresh air inlet 310, and the outlet is connected with the inlet of the fresh air blower 90. The inlet of the downstream section 32 is connected to the outlet of the fresh air blower 90, and the outlet constitutes a fresh air outlet 320.

In this embodiment, the fresh air fan 90 includes not only a wind wheel, but also a housing for mounting the wind wheel and having an inlet and an outlet. The fresh air fan 90 may be a centrifugal fan with its axis extending vertically. The upstream section 31 is located below the fresh air blower 90 and the downstream section 32 is located in front of the fresh air blower 90. In the embodiment, the fresh air duct 30 is divided into two sections, so that the height space and the depth space of the lower chamber 12 can be fully utilized. In addition, the fresh air fan 90 is positioned outside the fresh air duct 30, so that the installation and the disassembly are convenient, and the structure is ingenious.

In some alternative embodiments, the fresh air duct may also be an integral structure, so that the fresh air fan only includes the wind wheel, and the fresh air fan is disposed in the fresh air duct.

Thus, it should be appreciated by those skilled in the art that while various exemplary embodiments of the invention have been shown and described in detail herein, many other variations or modifications which are consistent with the principles of this invention may be determined or derived directly from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims

1. An air conditioner, comprising:

a housing;

2. The air conditioner according to claim 1, wherein

The exhaust fan is an axial flow fan.

3. The air conditioner according to claim 1, wherein

At least one blade is fixedly arranged at the axial end part of the cross-flow fan and used for blowing out airflow in the direction axially far away from the cross-flow fan when the cross-flow fan runs so as to enable the airflow to flow into the air exhaust duct.

4. The air conditioner according to claim 1, wherein

The through-flow air duct is vertically arranged, and the air outlet is positioned at the lower end of the through-flow air duct;

5. The air conditioner according to claim 1, wherein

The casing defines a lower chamber below the cross-flow duct, and the exhaust duct is located in the lower chamber.

6. The air conditioner of claim 5, further comprising:

the fresh air duct is arranged in the lower cavity and used for introducing outdoor fresh air;

the new trend wind channel has new trend import and new trend export, the new trend import is used for connecing with the new trend pipe of connecting outdoor environment, the new trend export is in order to be used for to the discharge new trend towards indoor environment.

7. The air conditioner of claim 6, further comprising:

and the fresh air fan is arranged in the lower cavity and used for promoting the flow of fresh air flow in the fresh air duct.

8. The air conditioner according to claim 7, wherein

The fresh air inlet and the outlet of the air exhaust duct are positioned on the rear side of the shell, and the fresh air outlet is positioned on the front side of the shell.

9. The air conditioner according to claim 8, wherein

The fresh air duct comprises an upstream section and a downstream section;

10. The air conditioner as claimed in claim 9, wherein

The fresh air fan is a centrifugal fan with an axis extending vertically; and is provided with

The upper reaches section is located the below of new trend fan, the lower reaches section is located the place ahead of new trend fan.