CN215001902U

CN215001902U - Indoor unit of air conditioner

Info

Publication number: CN215001902U
Application number: CN202121476915.1U
Authority: CN
Inventors: 孙祥
Original assignee: Hisense Shandong Air Conditioning Co Ltd
Current assignee: Hisense Shandong Air Conditioning Co Ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2021-12-03
Anticipated expiration: 2031-06-30

Abstract

The utility model provides an indoor unit of air conditioner belongs to air conditioning technology field. The air-conditioning indoor unit comprises a shell, wherein an air-conditioning air inlet and an air-conditioning air outlet are formed in the shell; the heat exchanger is arranged in the shell; the air inlet duct forms an air inlet path for air-conditioning air to flow from the air inlet of the air conditioner to the heat exchanger; the fresh air module is arranged in the shell and used for introducing outdoor fresh air into a room, a fresh air outlet is formed in the fresh air module and is communicated with the air inlet duct; the fresh air flowing into the air inlet duct from the fresh air outlet is mixed with the air-conditioning air and then blown out from the air-conditioning air outlet. The indoor unit of the air conditioner can mix outdoor fresh air and air conditioning air and blow the mixed air to the indoor through the air conditioning air outlet, so that the problem of poor comfort caused by temperature difference between the fresh air and the indoor is avoided, and the comfort experience of a user is improved.

Description

Indoor unit of air conditioner

Technical Field

The utility model relates to an air conditioning technology field especially relates to an indoor unit of air conditioner.

Background

In the related art, the fresh air conditioner can introduce outdoor fresh air into a room; in general, an indoor unit of an air conditioner is provided with a fresh air outlet and an air conditioner outlet which are independent from each other, outdoor fresh air is blown to the indoor from the fresh air outlet, and air conditioner air is blown to the indoor from the air conditioner outlet; when the indoor outer difference in temperature is great, for example summer or winter, the new trend that blows off from the new trend air outlet is great with the indoor difference in temperature, can influence user's travelling comfort and experience.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve one of the technical problem in the correlation technique at least to a certain extent.

Therefore, the application aims to provide an air-conditioning indoor unit, the outdoor fresh air and the air-conditioning air can be blown to the indoor space through the air-conditioning air outlet after being mixed, the problem that the comfort is poor due to the temperature difference between the fresh air and the indoor space is avoided, and the comfort experience of a user is improved.

An air conditioning indoor unit according to the present application includes: the shell is provided with an air conditioner air inlet and an air conditioner air outlet; the heat exchanger is arranged in the shell; the air inlet duct forms an air inlet path for air-conditioning air to flow from the air inlet of the air conditioner to the heat exchanger; the fresh air module is arranged in the shell and used for introducing outdoor fresh air into a room, a fresh air outlet is arranged on the fresh air module, and the fresh air outlet is communicated with the air inlet duct; the fresh air flowing into the air inlet duct from the fresh air outlet is mixed with the air-conditioning air and then blown out from the air-conditioning air outlet.

This application sets up the new trend export with air inlet duct intercommunication on the new trend module, the new trend that the new trend export blew off is sent to indoorly from air conditioner air outlet after the heat exchanger heat transfer with air conditioner wind together in air inlet duct, thereby the new trend has been reduced with indoor difference in temperature through the heat exchanger, and mix through new trend and air conditioner wind and also reduced the difference in temperature, because air conditioner wind can send the new trend to indoor each corner and increased the diffusion velocity of new trend when having improved user's difference in temperature travelling comfort and experiencing.

In some embodiments of the present application, the fresh air module comprises: the fan is used for blowing the fresh air to the fresh air outlet and is an axial flow fan.

Axial fan has realized the side air-out of new trend, and the new trend export of new trend accessible side is direct to flow to in the air inlet duct.

In some embodiments of the present application, the fresh air module and the heat exchanger are arranged side by side, and the fresh air outlet faces the direction of the heat exchanger.

In some embodiments of the present application, the fresh air module comprises: a fan case; the air outlet part is formed by extending the side surface of the fan shell towards the direction of the air inlet duct, and a fresh air outlet is formed in the air outlet part.

In some embodiments of this application, the both ends of heat exchanger are equipped with the end plate, and on the projection of new trend export place plane, the new trend export is located between the inner wall of end plate and casing.

In some embodiments of the present application, the air outlet portion and the heat exchanger are staggered from each other in a length direction of the heat exchanger.

In some embodiments of the present application, the air outlet portion extends along a straight line.

In some embodiments of the present application, the fresh air module further comprises: the air cavity shell and the fan shell enclose an air inlet cavity; and the purification unit is arranged in the air inlet cavity and used for purifying fresh air.

In some embodiments of the present application, the air outlet portion is substantially in the shape of a rectangular parallelepiped.

In some embodiments of the present application, a rotatable damper is provided at the fresh air outlet to open or close the fresh air outlet.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a perspective view of an air conditioning indoor unit according to an embodiment of the present application;

fig. 2 is a perspective view of an air conditioner indoor unit according to an embodiment of the present application, with air deflectors omitted;

fig. 3 is a perspective view of a heat exchanger and a fresh air module of an indoor unit of an air conditioner according to an embodiment of the present application;

fig. 4 is a perspective view of a fresh air module of an indoor unit of an air conditioner according to an embodiment of the present application;

fig. 5 is an exploded view of a fresh air module of an indoor unit of an air conditioner according to an embodiment of the present application;

fig. 6 is a cross-sectional view of an air conditioning indoor unit according to an embodiment of the present application, with a heat exchanger omitted;

fig. 7 is a partial view of a fresh air module and a heat exchanger of an indoor unit of an air conditioner according to an embodiment of the present application;

in the above figures: 10. a housing; 11. an air inlet of an air conditioner; 12. an air outlet of the air conditioner; 13. an air deflector; 20. a heat exchanger; 21. an end plate; 211. avoiding the notch; 30. a fan; 40. a fresh air module; 41. a fresh air housing; 411. a fan case; 412. an air cavity shell; 413. a fresh air inlet; 414. a fresh air outlet; 417. an air outlet part; 42. a fan; 50. an air conditioning duct; 51. an air inlet duct; 52. an air outlet duct.

Detailed Description

The present invention is specifically described below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the present application, an air conditioner performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the air that has been conditioned and heat-exchanged.

The compressor compresses a refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a cooling effect by heat-exchanging with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the indoor space throughout the cycle.

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

The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater for a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler for a cooling mode.

Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings.

Referring to fig. 1 to 3, an air conditioning indoor unit according to an embodiment of the present application includes a casing 10 having an air conditioning inlet 11 and an air conditioning outlet 12, a heat exchanger 20 for exchanging heat with air introduced at the air conditioning inlet 11, a blower 30 for blowing air from the air conditioning inlet 11 to the air conditioning outlet 12, and a fresh air module 40 for introducing fresh outdoor air into a room.

The air introduced into the housing 10 by the air inlet 11 and blown out from the air outlet 12 is referred to as air-conditioned air, and the air-conditioned air duct 50 forms a flow path of the air-conditioned air from the air inlet 11 to the air outlet 12; the outdoor air introduced into the room by the fresh air module 40 is called fresh air.

The air conditioning indoor unit may be a wall-mounted air conditioner installed on a wall surface, but the embodiment of the present application is not limited thereto.

Referring to fig. 4 and 5, the fresh air module 40 is disposed in the casing 10, and includes a fresh air casing 41 having a fresh air inlet 413 and a fresh air outlet 414, and a fan 42 for introducing outdoor fresh air from the fresh air inlet 413 to the fresh air outlet 414.

The fresh air inlet 413 can be connected with a fresh air pipeline extending to the outside, so that outdoor fresh air flows to the fresh air inlet 413 along the fresh air pipeline; the fresh air outlet 414 is communicated with the air-conditioning duct 50, so that the outdoor fresh air passing through the fresh air module 40 is blown into the air-conditioning duct 50 from the fresh air outlet 414, and the fresh air is mixed with the air-conditioning air in the air-conditioning duct 50 and then blown out from the air-conditioning outlet 12.

The fresh air and the air conditioning air are mixed to neutralize the temperature difference between the fresh air and the indoor air, so that the problem that the temperature comfort experience of a user is influenced because the fresh air directly blows to the indoor air after passing through the fresh air module 40 when the indoor and outdoor temperature difference is large in the prior art is solved; moreover, the fresh air outlet 414 is communicated with the air-conditioning duct 50, and the fan 30 can also play a role of forcing the outdoor fresh air to flow, so that the air speed of the introduced outdoor fresh air can be increased under the action of the fan 30, the outdoor fresh air can enter the room more quickly, and the fresh air and the air-conditioning air can be mixed to blow the fresh air to all corners of the room more quickly along with the air-conditioning air, so that the diffusion speed of the fresh air in the room is increased; in addition, the air outlet 12 is shared by the fresh air and the air conditioning air, so that the trouble of separately arranging the fresh air outlet on the indoor unit of the air conditioner in the prior art can be avoided.

Therefore, the fresh air outlet 414 of the fresh air module 40 is communicated with the air conditioning air duct 50 for circulating the air conditioning air, so that the air mixing of the fresh air and the air conditioning air in the air conditioning air duct 50 is realized, and the air conditioner has the advantages of good temperature difference comfort and fast fresh air diffusion.

With continued reference to fig. 1 and 2, the air inlet 11 is disposed on the upper surface of the housing 10, and the air outlet 12 is disposed at a position below the front surface of the housing 10.

The air conditioning indoor unit may include a louver 13 that opens or closes the air outlet 12. The air deflector 13 is rotatably provided at the air outlet 12. The air guide plate 13 is rotatable between a closed position where the air-conditioning outlet 12 is closed and an open position where the air-conditioning outlet 12 is open, and the air-conditioning air and the fresh outdoor air can be blown out from the air-conditioning outlet 12, and the air guide plate 13 can guide the blowing direction.

The heat exchanger 20 is disposed inside the casing 10 corresponding to the air inlet 11 and inside the air-conditioning duct 50. Referring to fig. 6, the air-conditioning duct 50 is divided into an air inlet duct 51 from the air inlet 11 to the heat exchanger 20 and an air outlet duct 52 from the heat exchanger 20 to the air outlet 12 by the heat exchanger 20.

The fan 30 is disposed in the air outlet duct 52 and is configured to blow out air, where the air includes air conditioning air, outdoor fresh air or a mixture of the air conditioning air and the outdoor fresh air, and the fan 30 makes the air in the air conditioning duct 50 flow to the air outlet 12. The fan 30 may be a cross flow fan.

In some embodiments of the present application, referring to fig. 7, a fresh air module 40 is disposed within the housing 10 at one end of the heat exchanger 20. The fresh air outlet 414 is arranged on the side surface of the fresh air module 40 close to the heat exchanger 20, and the fresh air outlet 414 faces the air-conditioning air duct 50, so that fresh air introduced by the fresh air module 40 can enter the air-conditioning air duct 50 through the fresh air outlet 414.

The fresh air module 40 in the prior art generally uses a centrifugal fan, and fresh air can only be discharged from the circumferential direction of the fresh air shell 41 and cannot be discharged from the side face. The fan 42 of the present application adopts an axial fan, and the axial direction of the axial fan can discharge air, so that the side surface of the fresh air module 40 close to the heat exchanger 20 can discharge air, and the fresh air is directly blown into the air-conditioning duct 50; and moreover, the axial flow fan can reduce the space occupied by the air conditioner indoor unit in the length direction, so that the whole size of the air conditioner indoor unit is more compact.

In some embodiments of the present application, referring to fig. 4 and 6, the fresh air outlet 414 is in communication with the intake air duct 51. The fresh air outlet 414 directly blows the outdoor fresh air onto the heat exchanger 20, so that the outdoor fresh air is blown to the indoor after heat exchange through the heat exchanger 20, and the problem of poor temperature difference comfort experience caused by temperature difference between the introduced indoor fresh air and the indoor air is solved; meanwhile, the temperature difference between the outdoor fresh air and the indoor fresh air can be reduced by heat exchange of the outdoor fresh air through the heat exchanger 20.

Referring to fig. 4, the fresh air module 40 may include an air outlet portion 417. The air outlet portion 417 is used to guide outdoor fresh air blown out from the fan 42.

Referring to fig. 7, an arrow in the drawing indicates an air outlet direction of fresh air, the air outlet portion 417 extends from a side surface of the fresh air housing 41 to the heat exchanger 20, the air outlet portion 417 is hollow to form a flow path of fresh air, the fresh air outlet 414 is formed at an end portion of the air outlet portion 417, and the fresh air flowing in the air outlet portion 417 can be discharged into the air inlet duct 51 through the fresh air outlet 414.

The air outlet portion 417 extends along a straight line, so that the problem that the bent air outlet portion 417 can increase wind resistance is avoided.

The air outlet portion 417 is substantially in the shape of a rectangular parallelepiped in the present embodiment. However, in other embodiments, the air outlet portion 417 may have other shapes.

In some embodiments of the present application, an air plate (not shown in the drawings) is disposed at the fresh air outlet 414, the air plate is rotatably connected in the air outlet portion 417, and the fresh air outlet 414 can be opened or closed by rotation of the air plate, so as to realize on/off control of the fresh air outlet 414, so as to close the fresh air outlet 414 when the air conditioner does not use a fresh air function, and prevent a part of air-conditioning air from entering the fresh air module 40 through the fresh air outlet 414 to reduce cooling/heating efficiency of the air conditioner. In particular, the damper may be a damper.

When the air plate at the fresh air outlet 414 is opened, fresh air blown out from the fan 42 flows in the air outlet portion 417 and blows towards the air inlet duct 51, the fresh air flows towards the air outlet duct 52 after passing through the heat exchanger 20 together with air-conditioning air in the air inlet duct 51 for heat exchange, and finally is discharged to the indoor through the air-conditioning air outlet 12.

In some embodiments of the present application, the ends of the heat exchanger 20 are provided with end plates 21. In the projection of the plane where the fresh air outlet 414 is located, the fresh air outlet 414 is located between the end plate 21 and the inner wall of the casing 10, so that fresh air can be sent into the air inlet duct 51 through the fresh air outlet 414.

Specifically, referring to fig. 6, the portion at the front upper corner of the end plate 21 is inclined, a large gap is formed between the portion and the housing 10 above the portion, and the fresh air outlet 414 may be disposed at the gap, so that the fresh air outlet 414 can communicate with the intake air duct 51 without changing the shapes of the end plate 21 and the heat exchanger 20. In other embodiments, one skilled in the art may arrange the fresh air outlet 414 on the upper side of the end plate 21 or arrange the fresh air outlet 414 on the front side of the end plate 21 according to the space size of the air inlet duct 51.

In some embodiments of the present application, the extension of the air outlet portion 417 to the direction of the air inlet duct 51 does not exceed the end plate 21, that is, in the left and right direction of the heat exchanger 20, the air outlet portion 417 is completely staggered from the heat exchanger 20, and in fig. 7, the right end of the air outlet portion 417 does not exceed the right end of the end plate 21, so that the air outlet portion 417 can be prevented from blocking part of the heat exchanger 20 to reduce the heat exchange efficiency of the heat exchanger 20.

In some embodiments of the present application, with continued reference to fig. 4 and 5, the fresh air housing 41 of the fresh air module 40 includes a fan housing 411 and a plenum housing 412 that may be connected together by a snap and screw connection.

The fan 42 is installed in the fan case 411, and the air outlet portion 417 is formed at a side surface of the fan case 411 opposite to the air chamber case 412.

An air inlet cavity is defined between the air cavity shell 412 and the fan shell 411, and a purification unit (not shown in the figure) is installed in the air inlet cavity; the air chamber shell 412 and the fan shell 411 extend outward to form a fresh air inlet 413, and the fresh air inlet 413 is communicated with the air inlet chamber, so that under the action of the fan 42, outdoor fresh air enters the air inlet chamber from the fresh air inlet 413 along a fresh air pipeline, is filtered by the purification unit, and then is blown into the air conditioning duct 50 through the fresh air outlet 414.

According to the application, the fresh air outlet 414 of the fresh air module 40 is communicated with the air conditioner air duct 50, fresh air can be mixed with air conditioner air in the air conditioner air duct 50 and then is delivered to the indoor from the air conditioner air outlet 12, the temperature difference between the fresh air and the indoor can be neutralized through air mixing, and the problem of poor comfort experience of a user caused by large fresh air temperature difference is solved.

According to the application, the fresh air outlet 414 communicated with the air inlet duct 51 is arranged on the fresh air module 40, and fresh air blown out from the fresh air outlet 414 is delivered to the indoor from the air conditioner air outlet 12 after being subjected to heat exchange together with air conditioner air in the air inlet duct 51 through the heat exchanger 20, so that the temperature difference between the fresh air and the indoor is further reduced through the heat exchanger, the temperature difference comfort experience of a user is improved, and the diffusion speed of the fresh air is increased because the air conditioner air delivers the fresh air to each indoor corner.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" 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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An indoor unit of an air conditioner, comprising:

the shell is provided with an air conditioner air inlet and an air conditioner air outlet;

a heat exchanger disposed within the housing;

the air inlet duct forms an air inlet path for air-conditioning air to flow from the air inlet of the air conditioner to the heat exchanger;

the fresh air module is arranged in the shell and used for introducing outdoor fresh air into a room, a fresh air outlet is formed in the fresh air module and is communicated with the air inlet duct;

the fresh air flowing into the air inlet duct from the fresh air outlet is mixed with the air-conditioning air and then blown out from the air-conditioning air outlet.

2. An indoor unit of an air conditioner according to claim 1, wherein the fresh air module includes:

and the fan is used for blowing fresh air to the fresh air outlet and is an axial flow fan.

3. An indoor unit of an air conditioner as claimed in claim 1, wherein the fresh air module and the heat exchanger are arranged side by side, and the fresh air outlet faces the heat exchanger.

4. An indoor unit of an air conditioner according to claim 1, wherein the fresh air module includes:

a fan case;

the air outlet part is formed by extending the side surface of the fan shell towards the air inlet duct direction, and the fresh air outlet is formed in the air outlet part.

5. An indoor unit of an air conditioner as claimed in claim 4, wherein end plates are provided at both ends of the heat exchanger, and the fresh air outlet is located between the end plates and the inner wall of the casing in a projection of a plane where the fresh air outlet is located.

6. An indoor unit of an air conditioner according to claim 4, wherein the air outlet portion and the heat exchanger are offset from each other in a length direction of the heat exchanger.

7. An indoor unit of an air conditioner according to claim 4, wherein the air outlet portion extends in a straight line.

8. The indoor unit of claim 4, wherein the fresh air module further comprises:

the air cavity shell and the fan shell enclose an air inlet cavity; and

and the purification unit is arranged in the air inlet cavity and used for purifying fresh air.

9. An indoor unit of an air conditioner according to claim 4, wherein the air outlet portion has a substantially rectangular parallelepiped shape.

10. An indoor unit of an air conditioner according to claim 1, wherein a rotatable air flap is provided at the fresh air outlet to open or close the fresh air outlet.