CN220931249U - Air conditioner indoor unit and air conditioner thereof - Google Patents

Abstract

The utility model discloses an air conditioner indoor unit and an air conditioner thereof, wherein the air conditioner indoor unit comprises a shell, a heat exchanger and a cross-flow fan, the shell is provided with an inner cavity, an air inlet, an air outlet and a fresh air inlet which are communicated with the inner cavity, and the heat exchanger and the cross-flow fan are both arranged in the inner cavity; the air conditioner indoor unit is characterized in that a fresh air inlet communicated with the inner cavity is directly formed in the shell, the fresh air inlet is positioned between two axial ends of the cross flow fan, the fresh air inlet is communicated with the inner cavity from the middle of the length direction of the shell, air flows introduced from the air inlet and the fresh air inlet are mixed in the inner cavity by the cross flow fan in the radial direction, and the air flows are discharged from the air outlet; and the air conditioner indoor unit reduces the cost and improves the comfort of fresh air.

Description

Air conditioner indoor unit and air conditioner thereof

Technical Field

The utility model relates to the technical field of air conditioner manufacturing, in particular to an air conditioner indoor unit and an air conditioner thereof.

Background

Along with the improvement of living standard of people, the health requirement of people on indoor environment is higher and higher, so that a plurality of air conditioning products with ventilation system functions are arranged, and the main function of the air conditioning products is to introduce outdoor fresh air into the indoor space. As shown in fig. 20-24, the general ventilation component and the air conditioning temperature regulating system are both independently operated components, the ventilation component consists of a volute, a ventilation motor, a centrifugal fan blade, a volute cover, a sealing cover and other parts, and the operation mode is that the ventilation motor is operated to drive the centrifugal fan blade to rotate, so that outdoor fresh air is sucked into the ventilation component volute cover and the sealing cover through a fresh air pipe and then blown into a room through the volute, and thus, the outdoor fresh air is continuously introduced into the room, the freshness of indoor air is improved, and the comfort is improved. The air supply system and the air exchange system in the air exchange air conditioner independently operate, two motor drives are needed, the failure rate of an electric appliance is high, the air exchange air flow cannot exchange heat with indoor air inlet air flow, the blown fresh air can generate temperature difference with the indoor air exchange air flow, human discomfort is easily caused, in addition, the air exchange parts are more in component parts, assembly steps are more, the cost is high, the length dimension of the bottom shell is increased by the air exchange parts, and the occupied space is large when the air conditioner is installed.

Disclosure of utility model

The utility model aims to provide an air conditioner indoor unit and an air conditioner thereof, and aims to solve the technical problems that the temperature difference between fresh air blown by the existing air conditioner indoor unit and indoor ventilation air flow is easy to cause discomfort of a human body, more parts are formed by outer ventilation parts, more assembly steps are needed, the cost is high, and the ventilation parts increase the length dimension of a bottom shell, so that the occupied space is large during the installation of the air conditioner.

In order to solve the above problems, according to one aspect of the present utility model, an embodiment of the present utility model provides an air conditioner indoor unit including:

The shell is provided with an inner cavity, an air inlet, an air outlet and a fresh air inlet, wherein the air inlet, the air outlet and the fresh air inlet are communicated with the inner cavity;

The heat exchanger is arranged in the inner cavity;

the through-flow fan is arranged in the inner cavity, the fresh air inlet is positioned between two axial ends of the through-flow fan, and the through-flow fan can mix air flows introduced from the air inlet and the fresh air inlet in the inner cavity and discharge the air flows from the air outlet.

In some embodiments, the shell comprises a bottom shell and a panel assembly, the bottom shell is buckled with the panel assembly to form an inner cavity, the air inlet and the air outlet are both formed in the panel assembly, and the fresh air inlet is formed in the bottom shell.

In some embodiments, a damper assembly capable of opening or closing the fresh air introduction port is provided on the bottom case.

In some embodiments, the air door assembly comprises a driving member and an air door, wherein the air door is arranged on the inner wall or the outer wall of the bottom shell in a fitting way, and the driving member can drive the air door to move along the inner wall or the outer wall of the bottom shell so as to block the fresh air inlet or move away from the fresh air inlet.

In some embodiments, the drive member includes a first drive motor disposed on the bottom shell, a drive tooth disposed on a drive shaft of the first drive motor, and a rack disposed on the damper, the drive tooth being engaged with the rack.

In some embodiments, the damper assembly further includes a motor box snap-fit onto the bottom shell, the motor box configured with a mounting cavity recessed from a side proximate to the bottom shell to a side distal from the bottom shell, the first drive motor disposed within the mounting cavity.

In some embodiments, the bottom shell is provided with a cover structure which is sunken from one side close to the air door to one side far away from the air door, the bottom of the cover structure is positioned at one side far away from the air door, the fresh air inlet is formed in the bottom of the cover structure, and the side wall of the cover structure is provided with an opening into which the air door extends, so that the air door seals the fresh air inlet.

In some embodiments, the cross-flow fan comprises a fan shaft sleeve assembly, a cross-flow fan blade and a second driving motor, wherein the fan shaft sleeve assembly and the second driving motor are respectively arranged on the bottom shell and close to the two ends, one end of the cross-flow fan blade is connected with a driving shaft of the second driving motor, and the other end of the cross-flow fan blade is inserted on the fan shaft sleeve assembly.

In some embodiments, the air door is arranged on the outer wall of the shell, the axis of the fresh air inlet is perpendicular to the axis of the through-flow fan blade, the opening part of the fresh air inlet, which is far away from the through-flow fan blade, is provided with a butt joint pipe, and a new air pipe is spliced on the butt joint pipe.

According to another aspect of the present utility model, an embodiment of the present utility model further provides an air conditioner, including the air conditioner indoor unit as described above.

Compared with the prior art, the air conditioner indoor unit has at least the following beneficial effects:

The embodiment of the utility model discloses an air conditioner indoor unit, which comprises a shell, a heat exchanger and a cross-flow fan, wherein the shell is provided with an inner cavity, an air inlet, an air outlet and a fresh air inlet which are communicated with the inner cavity, and the heat exchanger and the cross-flow fan are both arranged in the inner cavity; when the air conditioner indoor unit works, the through-flow fan runs to generate negative pressure in the inner cavity, indoor air flow can enter the inner cavity through the air inlet and exchange heat with the heat exchanger, and air flow in the inner cavity after heat exchange can flow back to the indoor through the air outlet.

The air conditioner internal unit provided by the utility model has the advantages that the ventilation part is omitted, so that the length dimension of the shell is smaller than that of the prior shell, the overall dimension of the air conditioner internal unit is shortened, and the installability of the air conditioner is improved.

The indoor unit of the air conditioner can lead outdoor fresh air to be introduced through the fresh air inlet, and be blown out from the air outlet together after being mixed and exchanged with indoor air inlet flow introduced by the air inlet in the inner cavity of the shell, so that the fresh air is blown out after being subjected to heat exchange, the temperature difference feeling of a human body is not caused, and the comfort of the fresh air is improved.

Therefore, the air conditioner indoor unit of the embodiment reduces the cost and improves the comfort of fresh air.

In another aspect, the air conditioner provided by the utility model is based on the air conditioner indoor unit, and the beneficial effects of the air conditioner indoor unit are referred to as beneficial effects of the air conditioner indoor unit, and are not described in detail herein.

The foregoing description is only an overview of the present utility model, and is intended to provide a better understanding of the present utility model, as it is embodied in the following description, with reference to the preferred embodiments of the present utility model and the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of an exploded structure of an air conditioner indoor unit according to an embodiment of the present utility model;

Fig. 2 is an exploded schematic view of a bottom case and a damper assembly of an air conditioner according to an embodiment of the present utility model;

fig. 3 is a schematic perspective view of a bottom case of an air conditioner indoor unit according to an embodiment of the present utility model;

fig. 4 is a schematic structural diagram of a bottom case of an air conditioner indoor unit according to an embodiment of the present utility model;

FIG. 5 is a cross-sectional view taken at A-A of FIG. 4;

Fig. 6 is an assembled perspective view of a damper assembly of an air conditioner indoor unit according to an embodiment of the present utility model;

Fig. 7 is a schematic diagram of a three-dimensional exploded structure of a damper assembly of an air conditioner indoor unit according to an embodiment of the present utility model;

Fig. 8 is a schematic structural diagram of a damper assembly of an air conditioner indoor unit according to an embodiment of the present utility model;

FIG. 9 is a cross-sectional view at B-B in FIG. 8;

Fig. 10 is a schematic structural view of a damper opening fresh air intake of a damper assembly of an air conditioner indoor unit according to an embodiment of the present utility model;

FIG. 11 is an enlarged view of FIG. 10 at C;

FIG. 12 is a schematic view of a structure of an air door opening fresh air intake of an air door assembly of an air conditioner according to another view angle of the air door assembly of the air conditioner according to an embodiment of the present utility model;

fig. 13 is an enlarged view of D in fig. 12;

fig. 14 is a schematic structural view of a damper assembly of an air conditioner indoor unit closing a fresh air inlet according to an embodiment of the present utility model;

Fig. 15 is an enlarged view at E in fig. 14;

FIG. 16 is a schematic view of an air door of an air conditioner indoor unit air door assembly according to an embodiment of the present utility model from another view angle;

fig. 17 is an enlarged view of F in fig. 16;

fig. 18 is a schematic structural diagram of an air conditioner indoor unit according to an embodiment of the present utility model;

FIG. 19 is a cross-sectional view taken at G-G of FIG. 18;

FIG. 20 is a schematic view of a conventional air conditioner indoor unit;

Fig. 21 is a schematic exploded view of a conventional air conditioner indoor unit;

Fig. 22 is a schematic structural view of a ventilation member of a conventional air conditioner indoor unit;

Fig. 23 is an exploded view of a ventilation unit of a conventional air conditioner;

fig. 24 is a sectional view of a conventional air conditioner indoor unit.

Reference numerals illustrate:

1. A housing; 11. a bottom case; 111. fresh air inlet; 112. a cover structure; 113. an opening; 114. a butt joint pipe; 12. a panel assembly; 121. an air inlet; 122. an air outlet; 13. a panel body; 14. a panel;

2. a heat exchanger;

3. a cross flow fan; 31. a fan shaft sleeve assembly; 32. through-flow fan blades; 33. a second driving motor;

4. A damper assembly; 41. a driving member; 411. a first driving motor; 412. a drive tooth; 42. a damper; 421. a rack; 43. a motor box; 431. a mounting cavity;

5. A new air pipe;

6. A ventilation member; 61. a volute; 62. a ventilation motor; 63. centrifugal fan blades; 64. a volute cover; 65. sealing cover; 66. a ventilation air outlet; 67. a ventilation air inlet;

7. And (5) a ventilation cover plate.

Detailed Description

In order to further describe the technical means and effects adopted for achieving the preset aim of the utility model, the following detailed description refers to the specific implementation, structure, characteristics and effects according to the application of the utility model with reference to the accompanying drawings and preferred embodiments. In the following description, different "an embodiment" or "an embodiment" do not necessarily refer to the same embodiment. Furthermore, the particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.

In the description of the present utility model, it should be clear that the terms "first," "second," and the like in the description and claims of the present utility model and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order; the terms "vertical," "transverse," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "horizontal," and the like are used for indicating an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description of the present utility model, and do not mean that the apparatus or element referred to must have a specific orientation or position, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Example 1

As shown in fig. 1 to 19, an embodiment of the present utility model provides an air conditioner indoor unit, including:

A housing 1 having an inner cavity, an air inlet 121, an air outlet 122 and a fresh air introduction port 111 communicating with the inner cavity;

The heat exchanger 2 is arranged in the inner cavity;

The cross flow fan 3 is arranged in the inner cavity, the fresh air inlet 111 is positioned between two axial ends of the cross flow fan 3, and the cross flow fan 3 can mix air flows introduced from the air inlet 121 and the fresh air inlet 111 in the inner cavity and discharge the air flows from the air outlet 122.

As shown in fig. 20-24, an existing air conditioner indoor unit comprises a bottom shell 11, a heat exchanger 2, a panel body 13, a panel 14, a fan shaft sleeve assembly 31, a through-flow fan blade 32, a second driving motor 33, a ventilation cover plate 7, a fresh air pipe 5 and a ventilation component 6; the panel 14 is arranged on the panel body 13, the bottom shell 11 is buckled with the panel body 13 and is positioned at one side of the panel body 13 far away from the panel 14, the panel body 13, the bottom shell 11 and the panel 14 form an installation cavity which is not communicated with an inner cavity and the ventilation part 6, the top of the panel body 13 is provided with an air inlet 121, the position between the bottom of the panel body 13 and the front side face is provided with an air outlet 122, and the inner cavity is internally provided with a cross-flow fan 3 and a heat exchanger 2 to form an air supply system with adjustable temperature; the ventilation component 6 of the air conditioner is installed in an installation cavity, the rotating shaft of the cross flow fan 3 is parallel to the length direction of the bottom shell 11, the installation cavity is located on any side of the axial direction of the cross flow fan 3, the ventilation component 6 specifically comprises a volute 61, a ventilation motor 62, a centrifugal fan blade 63, a volute cover 64, a sealing cover 65, a ventilation air outlet 66 and a ventilation air inlet 67, the ventilation air inlet 67 faces the bottom part of the bottom shell 11, the ventilation air outlet 66 faces the end part of the panel body 13 in the length direction, namely, air is discharged from the side face of the air conditioner, a ventilation system formed by the ventilation component 6 and an air supply system are mutually independent, two motors are required to drive, the electrical appliance failure rate is high, ventilation air flow cannot exchange heat with indoor air inlet air flow, the blown fresh air can generate temperature difference with indoor air ventilation air flow, human body discomfort is easily caused, in addition, the ventilation component 6 forms parts are more, the assembly steps are multiple, the cost is high, the whole volume of the ventilation component 6 is large, the length of the bottom shell 11 is increased, the length of the air conditioner is long, the occupied space is large when the air conditioner is installed, and enough positions are required to be reserved on the side face of the air conditioner, and the air conditioner is not required to be more occupied when the air conditioner is discharged, and the position is required to be free from the position to be installed.

In this embodiment, the air conditioner indoor unit includes a casing 1, a heat exchanger 2 and a cross-flow fan 3, specifically, the casing 1 has an inner cavity, and an air inlet 121, an air outlet 122 and a fresh air inlet 111 which are communicated with the inner cavity, and the heat exchanger 2 and the cross-flow fan 3 are both installed in the inner cavity; when the air conditioner indoor unit works, the cross flow fan 3 runs, negative pressure can be generated in the inner cavity, indoor air flow can enter the inner cavity through the air inlet 121, heat exchange is carried out between the indoor air flow and the heat exchanger 2, and the air flow in the inner cavity after heat exchange can flow back into the room through the air outlet 122; the air conditioner indoor unit of this embodiment is through directly opening the new trend introduction port 111 that communicates with the inner chamber on casing 1, new trend introduction port 111 is located between the axial both ends of cross flow fan 3, this position makes new trend introduction port 111 directly communicate with the inner chamber of casing 1 from the middle of the length direction of casing 1, and the new trend is introduced in the inner chamber from the radial of cross flow fan 3, cross flow fan 3 can make the air current that introduces from air inlet 121 and new trend introduction port 111 mix in the inner chamber when the operation, and discharge the air current from gas outlet 122, therefore, the air conditioner indoor unit of this embodiment can make ventilation system and air supply system integrated design, the part 6 of having cancelled also can introduce the new trend from the outdoor, design, the material, assembly cost has greatly reduced.

The air conditioner indoor unit of the embodiment eliminates the ventilation part 6, so that the length dimension of the shell 1 is smaller than that before, the whole dimension of the air conditioner indoor unit is shortened, and the installability of the air conditioner is improved. The indoor unit of the air conditioner according to this embodiment may enable outdoor fresh air to be introduced through the fresh air introduction port 111, and be blown out from the air outlet 122 together after being mixed with the indoor air intake air flow introduced through the air inlet 121 in the inner cavity of the casing 1 for exchanging heat, so that the fresh air is blown out after being subjected to heat exchange, and the temperature difference feeling of a human body is not caused, and the comfort of the fresh air is improved.

Therefore, the air conditioner indoor unit of the embodiment reduces the cost and improves the comfort of fresh air.

In some embodiments, the casing 1 includes a bottom shell 11 and a panel assembly 12, the bottom shell 11 and the panel assembly 12 are buckled to form an inner cavity, the air inlet 121 and the air outlet 122 are both formed on the panel assembly 12, and the fresh air inlet 111 is formed on the bottom shell 11.

In this embodiment, the casing 1 specifically includes the bottom shell 11 and the panel component 12, the bottom shell 11 and the panel component 12 are buckled, an inner cavity can be formed by surrounding, the air inlet 121 and the air outlet 122 are all formed on the panel component 12, the fresh air inlet 111 is formed on the bottom shell 11 at any position between two axial ends of the through-flow fan 3, the panel component 12 includes the panel body 13 and the panel 14, the air inlet 121 is formed at the top of the panel body 13, the air outlet 122 is formed at the junction of the bottom of the panel body 13 and the bottom shell 11, so that the ventilation system and the air supply system of the air conditioner indoor unit of this embodiment are integrally designed, the ventilation component 6 is cancelled, fresh air can be introduced from the outside, and design, material and assembly costs are greatly reduced.

The air conditioner indoor unit of the embodiment eliminates the ventilation part 6, so that the length dimension of the shell 1 is smaller than before, the whole dimension of the air conditioner is shortened, and the installability of the air conditioner is improved. The indoor unit of the air conditioner according to this embodiment may enable outdoor fresh air to be introduced through the fresh air introduction port 111, and be blown out from the air outlet 122 together after being mixed with the indoor air intake air flow introduced through the air inlet 121 in the inner cavity of the casing 1 for exchanging heat, so that the fresh air is blown out after being subjected to heat exchange, and the temperature difference feeling of a human body is not caused, and the comfort of the fresh air is improved.

In some embodiments, the bottom case 11 is provided with a damper assembly 4 capable of opening or closing the fresh air introduction port 111.

In this embodiment, by providing the damper assembly 4 capable of opening or closing the fresh air inlet 111 on the bottom shell 11, the fresh air inlet 111 can be closed when fresh air is not required to be introduced, and the fresh air inlet 111 is opened when fresh air is required to be introduced, the damper assembly 4 of this embodiment realizes the opening and closing of the ventilation fresh air, and the ventilation component 6 is omitted, so that the whole size of the air conditioner is shortened, and fresh air can be introduced from the outside, thereby greatly reducing the design, material and assembly costs, and the structure capable of realizing the opening or closing of the fresh air inlet 111 is covered in the scope of the damper assembly 4 of the present utility model.

In some embodiments, the damper assembly 4 includes a driving member 41 and a damper 42, where the damper 42 is disposed on an inner wall or an outer wall of the bottom shell 11 in a fitting manner, and the driving member 41 can drive the damper 42 to move along the inner wall or the outer wall of the bottom shell 11 to block the fresh air intake 111 or move away from the fresh air intake 111.

In this embodiment, the damper assembly 4 includes a driving member 41 and a damper 42, specifically, in this embodiment, the damper 42 is driven to move along the inner wall or the outer wall of the bottom shell 11 by the driving member 41 through the inner wall or the outer wall of the bottom shell 11, the fresh air inlet 111 can be plugged or removed from the fresh air inlet 111, the fresh air inlet 111 is opened or closed by the damper assembly 4, the bottom shell 11 is generally arc-shaped, the damper 42 can be made into an arc-shaped structure matched with the bottom shell 11, the degree of fit between the bottom shell 11 and the damper 42 is improved, and the driving member 41 of the damper assembly 4 can adopt a belt transmission, a screw transmission, a connecting rod transmission, a crankshaft direct transmission, a chain transmission and other structures to realize that the damper 42 moves along the inner wall or the outer wall of the bottom shell 11.

In some embodiments, the driving member 41 includes a first driving motor 411, a driving gear 412, and a rack 421 provided on the damper 42, the first driving motor 411 is provided on the bottom case 11, the driving gear 412 is provided on a driving shaft of the first driving motor 411, and the driving gear 412 is engaged with the rack 421.

In this embodiment, the driving member 41 may include a first driving motor 411, a driving gear 412 and a rack 421 disposed on the air door 42, by disposing the first driving motor 411 on the bottom shell 11 and disposing the driving gear 412 on a driving shaft of the first driving motor 411, because the air door 42 has the rack 421, the driving gear 412 is meshed with the rack 421 through the driving gear 412, so that the driving member 41 drives the driving gear 412 to drive the rack 421 to move through the driving shaft by the first driving motor 411, and finally drives the air door 42 of the air door assembly 4 to open or close the fresh air inlet 111. The rack structure can also be adjusted according to the transmission structure, such as a connecting rod, a screw rod and the like.

In some embodiments, the damper assembly 4 further includes a motor case 43, the motor case 43 is snapped onto the bottom case 11, the motor case 43 is configured with a mounting cavity 431 recessed from a side near the bottom case 11 to a side far from the bottom case 11, and the first driving motor 411 is disposed in the mounting cavity 431.

In this embodiment, the damper assembly 4 further includes a motor box 43, the motor box 43 is buckled on the bottom shell 11, the motor box 43 can also be designed into an arc structure with the bottom shell 11 being adapted, so as to improve the fitting degree of the bottom shell 11 and the motor box 43.

In some embodiments, the bottom shell 11 is configured with a cover structure 112 recessed from a side close to the damper 42 to a side far from the damper 42, the bottom of the cover structure 112 is located at a side of the damper 42 far from the bottom shell 11, the fresh air inlet 111 is opened at the bottom of the cover structure 112, and an opening 113 into which the damper 42 extends is opened at a side wall of the cover structure 112, so that the damper 42 blocks the fresh air inlet 111.

In this embodiment, by configuring the bottom shell 11 with the cover structure 112 recessed from the side close to the damper 42 to the side far from the damper 42, the bottom of the cover structure 112 is located at the side far from the damper 42 from the bottom shell 11, the fresh air inlet 111 is opened at the bottom of the cover structure 112, by providing the opening 113 into which the damper 42 extends on the side wall of the cover structure 112, the damper 42 can extend into the cover structure 112 through the opening 113 to block the fresh air inlet 111, and when the damper 42 moves out of the cover structure 112 through the opening 113, the fresh air inlet 111 can be opened, specifically, when the damper 42 is assembled, the damper 42 can be inserted into the cover structure 112 at least partially, but the damper 42 does not block the fresh air inlet 111, so that the cover structure 112 prevents the damper 42 from dropping after the assembly is completed, and the sealing performance is improved.

The air door assembly 4 drives the transmission gear 412 to drive the rack 421 to move through the driving shaft when the first driving motor 411 of the driving member 41 is in the moving process, and finally drives the air door 42 of the air door assembly 4 to open or close the fresh air inlet 111, so that the whole air door assembly 4 has the advantages of simple part structure, low manufacturing cost and easy assembly. The transmission of the air door component 4 adopts the transmission fit of the transmission teeth 412 and the racks 421, so that the production and the manufacturing are facilitated; of course, the driving member 41 is not limited to a single one, and the opening and closing of the fresh air inlet 111 may be controlled by a push rod structure, a screw structure, a structure in which the crankshaft directly drives the damper 42 to rotate to open and close, or the like.

In some embodiments, the cross-flow fan 3 includes a fan shaft sleeve assembly 31, a cross-flow fan blade 32, and a second driving motor 33, where the fan shaft sleeve assembly 31 and the second driving motor 33 are respectively disposed on the bottom shell 11 near two ends, one end of the cross-flow fan blade 32 is connected to a driving shaft of the second driving motor 33, and the other end of the cross-flow fan blade 32 is inserted into the fan shaft sleeve assembly 31.

In this embodiment, the cross-flow fan 3 specifically includes a fan shaft sleeve assembly 31, a cross-flow fan blade 32 and a second driving motor 33, and in this embodiment, one end of the cross-flow fan blade 32 is connected to a driving shaft of the second driving motor 33 by arranging the fan shaft sleeve assembly 31 and the second driving motor 33 on the bottom shell 11 at positions close to two ends, and the other end of the cross-flow fan blade 32 is inserted into the fan shaft sleeve assembly 31, so as to realize rotatable fixation of the cross-flow fan blade 32.

In some embodiments, the air door 42 is disposed on the outer wall of the casing 1, the axis of the fresh air inlet 111 is perpendicular to the axis of the through-flow fan blade 32, the mouth of the fresh air inlet 111 away from the through-flow fan blade 32 is configured with a docking pipe 114, and the docking pipe 114 is plugged with the fresh air pipe 5.

In this embodiment, the air door 42 is disposed on the outer wall of the casing 1, and the axis of the fresh air inlet 111 is perpendicular to the axis of the through-flow fan blade 32, so as to ensure that fresh air can be directly sucked through the fresh air inlet 111 when the through-flow fan blade 32 rotates; the fresh air inlet 111 can be designed in the middle of the bottom shell 11, and the fresh air inlet passing through the middle position of the bottom shell 11 can effectively intake air through the fresh air inlet 111, so that fresh air can be conveniently sucked, the length of the bottom shell 11 is shortened, the cost is lower, the overall size of the air conditioner is reduced, and the requirement on the installation length is also reduced; simultaneously, the fresh air which is favorable for outdoor is introduced through the fresh air inlet 111, and the heat exchange between the fresh air and the indoor air inlet flow which is introduced through the air inlet 121 is more fully obtained; the mouth part of the fresh air inlet 111 far away from the through-flow fan blade 32 is provided with a butt joint pipe 114, the butt joint pipe 114 is inserted with a fresh air pipe 5, and the cross section shape of the fresh air inlet 111 can be circular, polygonal and the like; preferably circular, the circular structure is simple, and easy new tuber 5 assembly, new tuber 5 is kept away from the one end of butt joint pipe 114 and stretches out to the outdoor.

Example 2

The embodiment of the utility model also provides an air conditioner, which comprises the air conditioner indoor unit of the embodiment 1.

It is easy to understand by those skilled in the art that the above-mentioned advantageous technical features can be freely combined and superimposed without conflict.

While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (10)

1. An air conditioner indoor unit, characterized in that the air conditioner indoor unit comprises:

The shell is provided with an inner cavity, an air inlet, an air outlet and a fresh air inlet, wherein the air inlet, the air outlet and the fresh air inlet are communicated with the inner cavity;

The heat exchanger is arranged in the inner cavity;

The through-flow fan is arranged in the inner cavity, the fresh air inlet is positioned between two axial ends of the through-flow fan, and the through-flow fan can enable air flows introduced from the air inlet and the fresh air inlet to be mixed in the inner cavity; and discharging a flow of air from the air outlet.

2. The air conditioner indoor unit of claim 1, wherein the housing comprises a bottom shell and a panel assembly, the bottom shell is buckled with the panel assembly to form the inner cavity, the air inlet and the air outlet are both formed in the panel assembly, and the fresh air inlet is formed in the bottom shell.

3. The air conditioner indoor unit of claim 2, wherein a damper assembly capable of opening or closing the fresh air introduction port is provided on the bottom case.

4. The air conditioner indoor unit of claim 3, wherein the air door assembly comprises a driving member and an air door, the air door is arranged on the inner wall or the outer wall of the bottom shell in a fitting manner, and the driving member can drive the air door to move along the inner wall or the outer wall of the bottom shell so as to block or remove the fresh air inlet.

5. The air conditioner indoor unit of claim 4, wherein the driving member includes a first driving motor, a driving gear, and a rack provided on the damper, the first driving motor is provided on the bottom case, the driving gear is provided on a driving shaft of the first driving motor, and the driving gear is engaged with the rack.

6. The air conditioner indoor set of claim 5, wherein the damper assembly further comprises a motor box snap-fit onto the bottom shell, the motor box configured with a mounting cavity recessed from a side proximate to the bottom shell to a side distal from the bottom shell, the first drive motor disposed within the mounting cavity.

7. The air conditioner indoor unit of claim 5, wherein the bottom case is configured with a cover structure recessed from a side close to the damper to a side far away from the damper, a bottom of the cover structure is located at a side of the damper far away from the bottom case, the fresh air introduction port is opened at the bottom of the cover structure, and an opening into which the damper extends is opened at a side wall of the cover structure, so that the damper seals the fresh air introduction port.

8. The air conditioner indoor unit of claim 7, wherein the cross-flow fan comprises a fan shaft sleeve assembly, a cross-flow fan blade and a second driving motor, the fan shaft sleeve assembly and the second driving motor are respectively arranged on the bottom shell and close to two ends, one end of the cross-flow fan blade is connected with a driving shaft of the second driving motor, and the other end of the cross-flow fan blade is inserted into the fan shaft sleeve assembly.

9. The air conditioner indoor unit of claim 8, wherein the air door is arranged on the outer wall of the shell, the axis of the fresh air inlet is perpendicular to the axis of the through-flow fan blade, a butt joint pipe is arranged at the opening part of the fresh air inlet far away from the through-flow fan blade, and a fresh air pipe is inserted on the butt joint pipe.

10. An air conditioner comprising the air conditioner indoor set according to any one of claims 1 to 9.