CN220931248U - 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 located outside two axial ends of the cross flow fan, so that the fresh air inlet is communicated with the inner cavity from one end of the shell in the length direction, air is axially introduced from the cross flow fan, air flows introduced from the air inlet and the fresh air inlet are mixed in the inner cavity, and 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. 14-18, the general ventilation component and the air conditioning temperature regulating system are both independently operated components, the ventilation component is composed 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 an 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 outside the 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 the air stream 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 formed in the panel assembly, the bottom shell is provided with a partition plate to form an air passing cavity on one side of the inner cavity in the shell, the fresh air inlet is formed in the bottom shell and communicated with the air passing cavity, and the partition plate is provided with a first air passing hole which is used for communicating the air passing cavity with the inner cavity.

In some embodiments, an end of the heat exchanger in the length direction is provided with an angular bracket, the angular bracket being provided on the partition plate, the angular bracket having a second gas passing hole that communicates the inner chamber with the gas passing chamber.

In some embodiments, the first and second air holes are semicircular holes with openings, the first and second air holes can be surrounded to form a round hole, and the mouths of the first and second air holes are configured with guide rings extending towards the inner cavity.

In some embodiments, a damper assembly capable of opening or closing the fresh air introduction port is disposed within the bottom shell.

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 air door assembly is disposed in the air passing cavity, the air door assembly further comprises a mounting box, the mounting box cover is disposed at the fresh air inlet, the mounting box is provided with a third air passing hole communicated with the fresh air inlet, the driving member and the air door are both disposed in the mounting box, and the driving member can drive the air door to move along the inner wall of the mounting box so as to block or remove the air door from the third air passing hole.

In some embodiments, the drive member includes a first drive motor disposed on the mounting box, 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 comprises a mounting cover fastened to the mouth of the mounting box on a side away from the fresh air intake, the mounting cover is provided with a fourth air passing hole communicated with the first air passing hole, the mounting box is configured with a mounting cavity recessed from a side close to the mounting cover to a side away from the mounting cover, and the first driving motor is disposed in the mounting cavity.

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 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 cross flow fan runs, negative pressure can be generated in the inner cavity, indoor air flow can enter the inner cavity through the air inlet, heat exchange is carried out between the indoor air flow and the heat exchanger, and the air flow in the inner cavity can flow back to the indoor through the air outlet after heat exchange; according to the air conditioner internal unit, the fresh air inlet communicated with the inner cavity is directly formed in the shell, the fresh air inlet is located outside two ends of the axial direction of the cross flow fan, the position enables the fresh air inlet to be directly communicated with the inner cavity of the shell from at least one side of the length direction of the shell, the air inlet direction of the fresh air inlet is the axial direction of the cross flow fan, and when the cross flow fan operates, air flows introduced from the air inlet and the fresh air inlet can be mixed in the inner cavity and discharged from the air outlet, so that the air conditioner internal unit can enable an air exchanging system and an air supplying system to be integrally designed, fresh air can be introduced from the outside without an air exchanging component, and design, material and assembly costs are greatly reduced.

The air conditioner indoor unit provided by the utility model omits the ventilation component, and the opening positions of the fresh air inlet are reserved outside the two axial ends of the cross-flow fan on the shell, so that the length dimension of the shell is smaller than that of the prior shell, the overall 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 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 a schematic structural diagram of a bottom case of an air conditioner indoor unit according to an embodiment of the present utility model;

Fig. 3 is an exploded view of a bottom case and a damper assembly of an air conditioner according to an embodiment of the present utility model;

fig. 4 is an exploded view of a damper assembly of an air conditioner indoor unit according to an embodiment of the present utility model;

fig. 5 is a schematic structural view of an angular bracket of an air conditioner indoor unit according to an embodiment of the present utility model;

fig. 6 is a schematic structural view of another view angle of an angular bracket of an air conditioner indoor unit according to an embodiment of the present utility model;

fig. 7 is a schematic structural diagram of a damper opening fresh air inlet of a damper assembly of an air conditioner indoor unit according to an embodiment of the present utility model;

FIG. 8 is an enlarged view of FIG. 7 at A;

FIG. 9 is a schematic diagram of a structure of a damper assembly of an air conditioner indoor unit for closing a fresh air intake according to an embodiment of the present utility model;

fig. 10 is an enlarged view at B in fig. 9;

Fig. 11 is a schematic diagram of an assembled structure of an air conditioner indoor unit according to an embodiment of the present utility model;

FIG. 12 is a cross-sectional view taken at C-C of FIG. 11;

FIG. 13 is a cross-sectional view taken at D-D of FIG. 11;

Fig. 14 is a schematic structural view of a conventional air conditioner indoor unit;

Fig. 15 is a schematic view showing an exploded structure of a conventional air conditioner indoor unit;

fig. 16 is a schematic structural view of a ventilation member of a conventional air conditioner indoor unit;

Fig. 17 is an exploded view of a ventilation unit of a conventional air conditioner;

fig. 18 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 partition plate; 113. a first air passing hole; 114. a guide ring; 12. a panel assembly; 121. an air inlet; 122. an air outlet; 13. a panel body; 14. a panel;

2. A heat exchanger; 21. an angular bracket; 211. a second air passing hole;

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 mounting box; 431. a third air passing hole; 432. a mounting cavity; 44. a mounting cover; 441. a fourth air passing hole;

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 13, 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, and the cross flow fan 3 can mix the air flow introduced from the air inlet 121 and the fresh air inlet 111 in the inner cavity and discharge the air flow from the air outlet 122;

wherein, the fresh air inlet 111 is positioned outside the two axial ends of the cross flow fan 3.

As shown in fig. 14-18, the air conditioner 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 in this embodiment is characterized in that the fresh air inlet 111 communicated with the inner cavity is directly formed on the casing 1, the fresh air inlet 111 is located outside two axial ends of the through-flow fan 3, the fresh air inlet 111 is directly communicated with the inner cavity of the casing 1 from at least one side of the length direction of the casing 1, the air inlet direction of the fresh air inlet 111 is the axial direction of the through-flow fan 3, and when the through-flow fan 3 operates, the air flows introduced from the air inlet 121 and the fresh air inlet 111 can be mixed in the inner cavity, and the air flows are discharged from the air outlet 122, so that the air conditioner in this embodiment can be used for integrating a ventilation system with an air supply system, the ventilation component 6 is omitted, and the fresh air can be introduced from the outside, thereby greatly reducing the design, material and assembly cost.

The air conditioner indoor unit of the embodiment omits the ventilation component 6, and the opening positions of the fresh air introduction ports 111 are reserved outside the two axial ends of the cross-flow fan 3 on the shell 1, so that the length dimension of the shell 1 is smaller than that before, the overall 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 is buckled with the panel assembly 12 to form an inner cavity, the air inlet 121 and the air outlet 122 are both formed on the panel assembly 12, the bottom shell 11 is configured with a partition plate 112 to form an air passing cavity on one side of the inner cavity in the casing 1, the fresh air inlet 111 is formed on the bottom shell 11 and is communicated with the air passing cavity, and the partition plate 112 is provided with a first air passing hole 113 for communicating the air passing cavity with the inner cavity.

In this embodiment, the housing 1 includes a bottom shell 11 and a panel assembly 12, specifically, 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, the panel assembly 12 includes a panel body 13 and a panel 14, the air inlet 121 is formed at the top of the panel body 13, and the air outlet 122 is formed at the junction between the bottom of the panel body 13 and the bottom shell 11; the bottom shell 11 of this embodiment is configured with the partition plate 112, the partition plate 112 can form an air passing cavity located at one side of the inner cavity in the shell 1, the fresh air introducing port 111 is opened on the bottom shell 11, and the fresh air introducing port 111 is communicated with the air passing cavity, the partition plate 112 is provided with the first air passing hole 113 for communicating the air passing cavity with the inner cavity, fresh air can be introduced into the inner cavity through the fresh air introducing port 111 on the bottom shell 11 and the first air passing hole 113 on the partition plate 112, and then is blown out from the air outlet 122 together after mixed exchange of the fresh air and the indoor air inlet flow introduced into the inner cavity of the shell 1, so that the fresh air is blown out after heat exchange, temperature difference feeling is not caused by human body, and the comfort of the fresh air is improved.

In some embodiments, the heat exchanger 2 is provided with an angular bracket 21 at either end in the length direction, the angular bracket 21 being provided on the partition plate 112, the angular bracket 21 having a second gas passing hole 211 that communicates the inner chamber with the gas passing chamber.

In the present embodiment, by providing the angle bracket 21 at either end of the heat exchanger 2 in the longitudinal direction, the angle bracket 21 is provided on the partition plate 112, the angle bracket 21 is fixed by the partition plate 112, and the heat exchanger 2 is fixed by the angle bracket 21, and since the angle bracket 21 has the second air passing hole 211 communicating the inner cavity with the air passing cavity, the air passing cavity and the inner cavity have the first air passing hole 113 and the second air passing hole 211 communicating with each other, and the amount of fresh air intake can be increased.

In some embodiments, the first air passing hole 113 and the second air passing hole 211 are semicircular holes with openings, the first air passing hole 113 and the second air passing hole 211 can be surrounded to form a round hole, and the opening parts of the first air passing hole 113 and the second air passing hole 211 are respectively provided with a guide ring 114 extending towards the inner cavity.

In this embodiment, the first air passing hole 113 and the second air passing hole 211 are both configured as semicircular holes with openings, and the first air passing hole 113 and the second air passing hole 211 can be surrounded to form a round hole, and the openings of the first air passing hole 113 and the second air passing hole 211 are both configured with a guide ring 114 extending towards the inner cavity, so that the guide ring 114 can guide the fresh air in the air inlet direction, the fresh air enters the inner cavity, the fresh air and the air inlet 121 are led into the indoor air inlet flow to be mixed and exchanged more fully in the inner cavity of the shell 1, and then are blown out from the air outlet 122 after being fully mixed, 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.

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

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, the ventilation component 6 is omitted, the opening position of the fresh air inlet 111 is reserved on the housing 1 outside the two axial ends of the through-flow fan 3, the damper assembly 4 is installed at the fresh air inlet 111, the whole size of the air conditioner can be shortened, and the air conditioner can be introduced from the outside, so that the design, material and assembly costs are greatly reduced, and as long as the structure capable of realizing the opening or closing of the fresh air inlet 111 is covered in the range 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 air door assembly 4 is disposed in the air passing cavity, the air door assembly 4 further includes a mounting box 43, the mounting box 43 is covered at the fresh air inlet 111, the mounting box 43 is provided with a third air passing hole 431 communicated with the fresh air inlet 111, the driving member 41 and the air door 42 are both disposed in the mounting box 43, and the driving member 41 can drive the air door 42 to move along the inner wall of the mounting box 43 so as to block the third air passing hole 431 or move away from the third air passing hole 431.

In this embodiment, the damper assembly 4 is disposed in the air passing cavity, the damper assembly 4 further includes a mounting box 43, in this embodiment, by covering the mounting box 43 at the fresh air inlet 111, the mounting box 43 is provided with a third air passing hole 431 communicating with the fresh air inlet 111, both the driving member 41 and the damper 42 are disposed in the mounting box 43, and the damper 42 is driven by the driving member 41 to move along the inner wall of the mounting box 43, so that the third air passing hole 431 can be blocked or moved away from the third air passing hole 431, and the damper 42 closes the fresh air inlet 111 while blocking the third air passing hole 431; when the air door 42 is moved away from the third air passing hole 431, the third air passing hole 431 is opened, and the fresh air introducing port 111 is opened; opening or closing the fresh air inlet 111 of the air door assembly 4 is realized; the drive member 41 of the damper assembly 4 may be belt driven, screw driven, link driven, crank direct driven, chain driven, etc. to effect movement of the damper 42 along the inner or outer wall of the bottom housing 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 mounting box 43, 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 damper 42, by disposing the first driving motor 411 on the mounting box 43 and disposing the driving gear 412 on the driving shaft of the first driving motor 411, since the damper 42 has the rack 421, the driving gear 412 is meshed with the rack 421, and thus the driving member 41 is meshed with the rack 421 through the driving gear 412, the first driving motor 411 drives the driving gear 412 to drive the rack 421 to move through the driving shaft, and finally drives the damper 42 of the damper 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 mounting cover 44, the mounting cover 44 is buckled at a mouth of the side of the mounting box 43 away from the fresh air inlet 111, the mounting cover 44 is provided with a fourth air passing hole 441 communicated with the first air passing hole 113, the mounting box 43 is configured with a mounting cavity 432 recessed from a side close to the mounting cover 44 to a side away from the mounting cover 44, and the first driving motor 411 is disposed in the mounting cavity 432.

In this embodiment, the mounting cover 44 of the damper assembly 4 is fastened to the opening portion of the mounting box 43 on the side far away from the fresh air inlet 111, and the fourth air passing hole 441 communicated with the first air passing hole 113 is formed in the mounting cover 44, the mounting box 43 is provided with the mounting cavity 432 recessed from the side close to the mounting cover 44 to the side far away from the mounting cover 44, and the first driving motor 411 is arranged in the mounting cavity 432, so that the damper assembly 4 can be assembled into a whole, the molding processing and the mounting of the damper assembly 4 are facilitated, and foreign matters are prevented from entering the damper assembly 4.

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 axis of the fresh air inlet 111 is perpendicular to the axis of the through-flow fan blade 32, and the mouth of the fresh air inlet 111 away from the through-flow fan blade 32 is provided with an abutting pipe, and the abutting pipe is spliced with a fresh air pipe 5.

In this embodiment, the axis of the fresh air inlet 111 is perpendicular to the axis of the through-flow fan blade 32, so that the positioning and installation of the fresh air pipe 5 are facilitated, an opposite connection pipe is configured at the mouth of the fresh air inlet 111 away from the through-flow fan blade 32, the opposite connection pipe is inserted with the fresh air pipe 5, and the cross section of the fresh air inlet 111 can be circular, polygonal, and the like; preferably circular, circular simple structure easily assembles new tuber pipe 5, and new tuber pipe 5 is kept away from the one end of butt joint pipe 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 (12)

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 outside the 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 formed in the panel assembly, a partition plate is formed on the bottom shell to form an air passing cavity in the housing at one side of the inner cavity, the fresh air inlet is formed in the bottom shell and is communicated with the air passing cavity, and a first air passing hole for communicating the air passing cavity with the inner cavity is formed in the partition plate.

3. The air conditioner indoor unit of claim 2, wherein one end of the heat exchanger in a length direction is provided with an angle bracket provided on the partition plate, the angle bracket having a second air passing hole that communicates the inner chamber with the air passing chamber.

4. The air conditioner indoor set of claim 3, wherein the first air passing hole and the second air passing hole are semicircular holes with openings, the first air passing hole and the second air passing hole can be encircled to form a round hole, and the openings of the first air passing hole and the second air passing hole are respectively provided with a guide ring extending towards the inner cavity.

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

6. The air conditioner indoor unit of claim 5, 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.

7. The air conditioner indoor unit of claim 6, wherein the air door assembly is disposed in the air passing cavity, the air door assembly further comprises a mounting box, the mounting box cover is disposed at the fresh air inlet, a third air passing hole communicated with the fresh air inlet is formed in the mounting box, the driving member and the air door are both disposed in the mounting box, and the driving member can drive the air door to move along the inner wall of the mounting box so as to block or remove the third air passing hole.

8. The air conditioner indoor unit of claim 7, 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 mounting box, the driving gear is provided on a driving shaft of the first driving motor, and the driving gear is engaged with the rack.

9. The air conditioner indoor unit of claim 8, wherein the damper assembly further comprises a mounting cover fastened to a mouth of the mounting box on a side away from the fresh air introduction port, the mounting cover being provided with a fourth air passing hole communicating with the first air passing hole, the mounting box being configured with a mounting cavity recessed from a side close to the mounting cover to a side away from the mounting cover, the first driving motor being disposed in the mounting cavity.

10. The air conditioner indoor unit of claim 8, 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.

11. The air conditioner indoor unit of claim 10, wherein the axis of the fresh air inlet is perpendicular to the axis of the through-flow fan blade, a butt joint pipe is formed 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.

12. An air conditioner comprising the air conditioner indoor set according to any one of claims 1 to 11.