CN114060940B

CN114060940B - Floor type air conditioner indoor unit and air conditioner

Info

Publication number: CN114060940B
Application number: CN202010770296.0A
Authority: CN
Inventors: 雍文涛
Original assignee: GD Midea Air Conditioning Equipment Co Ltd
Current assignee: GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2023-05-30
Anticipated expiration: 2040-08-03
Also published as: CN114060940A

Abstract

The invention discloses a floor type air conditioner indoor unit and an air conditioner, wherein the floor type air conditioner indoor unit comprises a shell and an air outlet cover, the upper end of the shell is open, the air outlet cover is arranged at the open position of the shell, and a plurality of air outlet holes are formed in the circumferential direction of the air outlet cover. According to the technical scheme, the plurality of air outlet holes are formed in the circumferential direction of the air outlet cover, so that the air supply range is enlarged, direct blowing of air blown out of the air outlet cover to users can be effectively avoided, and the comfort of the floor type air conditioner indoor unit is improved.

Description

Floor type air conditioner indoor unit and air conditioner

Technical Field

The invention relates to the technical field of air conditioners, in particular to a floor type air conditioner indoor unit and an air conditioner.

Background

In the related art, a cross flow wind wheel is adopted for most of the floor type air conditioner indoor units, an indoor air inlet is arranged on the back surface of the machine body, an air outlet is arranged on the front surface of the machine body, and the indoor air inlet and the air outlet are both arranged in a strip shape. However, the air blown out through the long-strip-shaped air outlet can directly blow the user, which causes discomfort to the user, thereby resulting in poor comfort of the floor type air conditioner indoor unit.

The foregoing is merely provided to facilitate an understanding of the principles of the invention and is not admitted to be prior art.

Disclosure of Invention

The invention mainly aims to provide a floor type air conditioner indoor unit, and aims to solve the technical problem that the existing floor type air conditioner indoor unit is poor in comfort.

In order to achieve the above object, the present invention provides a floor type indoor unit of an air conditioner, comprising:

a housing having an upper end thereof open; and

the air outlet cover is arranged at the opening of the shell, and a plurality of air outlet holes are formed in the circumferential direction of the air outlet cover.

In an embodiment, the air outlet cover is gradually expanded from top to bottom.

In an embodiment, the shape of the air outlet hole is a circle, an ellipse, a diamond, a square or a polygon.

In an embodiment, the air outlet cover has a rotation axis extending in an up-down direction, and is rotatably mounted at the opening of the housing and is rotatable about the rotation axis.

In an embodiment, the floor type air conditioner indoor unit further comprises a rotating device arranged at the lower end of the air outlet cover, and the rotating device is connected with the air outlet cover so as to drive the air outlet cover to rotate under the driving of air flow.

In an embodiment, the rotating device includes a rotating shaft and a plurality of rotating blades, the rotating shaft is located on a rotating shaft line of the air outlet cover, and the plurality of rotating blades are installed on the rotating shaft and connected with the air outlet cover.

In an embodiment, the rotating device further comprises an annular fixing frame installed at the lower end of the air outlet cover, and the annular fixing frame is arranged on the periphery of the plurality of rotating blades and connected with the plurality of rotating blades.

In an embodiment, the floor-type air conditioner indoor unit further comprises a first driving device, and the first driving device is connected with the air outlet cover to drive the air outlet cover to rotate.

In an embodiment, the shell comprises an upper shell body, the upper shell body is arranged at the lower end of the air outlet cover, the floor type air conditioner indoor unit further comprises a fan assembly, and the fan assembly is arranged in the upper shell body.

In an embodiment, an indoor air inlet is formed in the peripheral side of the shell, and the floor type air conditioner indoor unit further comprises a heat exchanger, wherein the heat exchanger is arranged in the shell corresponding to the indoor air inlet.

In an embodiment, the indoor air inlet is annularly arranged.

In an embodiment, the floor type indoor unit of an air conditioner further comprises an annular telescopic door arranged at the periphery of the indoor air inlet, wherein the annular telescopic door can move up and down to be in an extending state for closing the indoor air inlet and a contracting state for opening the indoor air inlet.

In an embodiment, the annular expansion door comprises at least two expansion units, at least two expansion units are sequentially sleeved in the up-down direction, and two adjacent expansion units can slide relatively in the up-down direction.

In an embodiment, the annular expansion door comprises a first expansion unit, a second expansion unit and a third expansion unit which are arranged from top to bottom, the second expansion unit is sleeved outside the first expansion unit, the third expansion unit is sleeved outside the second expansion unit, the first expansion unit can slide up and down relative to the second expansion unit, and the second expansion unit can slide up and down relative to the third expansion unit.

In an embodiment, the floor type air conditioner indoor unit further comprises a second driving device, and the second driving device is connected with the annular telescopic door to drive the annular telescopic door to move up and down.

In an embodiment, the second driving device comprises a motor, a driving wheel, a fixed pulley and a transmission piece, wherein the fixed pulley is positioned above the driving wheel, the transmission piece is in transmission connection with the driving wheel and the fixed pulley, the motor is connected with the driving wheel to drive the driving wheel to rotate, and the annular sliding door is connected with the transmission piece.

In one embodiment, a fixed slider is provided on the transmission member, and the fixed slider is connected to the annular sliding door.

In an embodiment, the number of the second driving devices is at least two, and at least two second driving devices are disposed on the periphery of the annular expansion door.

In one embodiment, the housing includes a base, and an upwardly open receiving cavity is provided on the base for receiving the annular expansion door.

In an embodiment, the floor type air conditioner indoor unit further comprises a water receiving disc, the water receiving disc is arranged at the bottom of the heat exchanger, a fresh air inlet is formed in the bottom of the shell, a fresh air passing opening is formed in the water receiving disc, a fresh air channel which is communicated with the fresh air inlet and the fresh air passing opening is formed in the shell, and an opening and closing door is arranged at the fresh air passing opening and is used for opening or closing the fresh air passing opening.

In an embodiment, the floor type air conditioner indoor unit further comprises a purification module, and the purification module is arranged in the fresh air duct.

The invention also provides an air conditioner, which comprises an air conditioner outdoor unit and a floor type air conditioner indoor unit, wherein the floor type air conditioner indoor unit is connected with the air conditioner outdoor unit through a refrigerant pipe, and the floor type air conditioner indoor unit comprises:

a housing having an upper end thereof open; and

The floor type air conditioner indoor unit comprises a shell and an air outlet cover, wherein the upper end of the shell is open, the air outlet cover is arranged at the opening of the shell, and a plurality of air outlet holes are formed in the circumferential direction of the air outlet cover, so that the air supply range is enlarged, the direct blowing of air blown out from the air outlet cover to users can be effectively avoided, the air outlet area is enlarged, the air outlet quantity is improved, and the comfort of the floor type air conditioner indoor unit is improved.

Drawings

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

FIG. 1 is a schematic view of a floor-type indoor unit of an air conditioner according to an embodiment of the present invention;

FIG. 2 is a schematic view of the floor-type air conditioner indoor unit of FIG. 1 in a use state;

FIG. 3 is a schematic view of the floor-type air conditioner indoor unit of FIG. 1 in another use state;

FIG. 4 is a detail view of the assembly of the air outlet cover, the rotating device and the fan assembly of FIG. 2;

FIG. 5 is a block diagram illustrating the assembly of the air outlet cover and the rotary device of FIG. 2;

FIG. 6 is a schematic diagram of the structure of the air outlet cover and the rotating device in FIG. 5;

FIG. 7 is a schematic view of the heat exchanger of FIG. 2;

FIG. 8 is a schematic view of a portion of the floor-type air conditioner indoor unit of FIG. 1;

FIG. 9 is a schematic view illustrating a view of a portion of the floor-type indoor unit of the air conditioner shown in FIG. 8;

FIG. 10 is a schematic view illustrating another view of a portion of the floor-type indoor unit of the air conditioner shown in FIG. 8;

fig. 11 is a schematic structural view of the second driving device in fig. 10.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name	Reference numerals	Name of the name
						100	Floor type air conditioner indoor unit	132	Rotary blade	171	Driving wheel
110	Outer casing	133	Annular fixing frame	172	Fixed pulley
						111	Upper shell	140	Fan assembly	173	Transmission piece
112	Middle shell	141	Wind wheel	174	Fixed slide block
						113	Indoor air inlet	142	Wind wheel motor	175	Mounting plate
114	Base seat	143	Motor support	180	Water receiving tray
						115	Accommodating cavity	150	Heat exchanger	181	Switch door
116	Fresh air inlet	160	Annular expansion door	190	Purification module
						120	Air outlet cover	161	First telescopic unit	191	First purifying unit
121	Air outlet	162	Second telescopic unit	192	Second purifying unit
						130	Rotary device	163	Third telescopic unit
131	Rotary shaft	170	Second driving device

The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

It should be noted that, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is only for descriptive purposes, and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B meet at the same time.

The invention provides a floor type air conditioner indoor unit.

Referring to fig. 1 to 4, the present invention provides a floor type indoor unit 100, the floor type indoor unit 100 includes a housing 110 and an air outlet cover 120, and an upper end of the housing 110 is open; the air outlet cover 120 is mounted at the opening of the housing 110, and a plurality of air outlet holes 121 are formed in the circumferential direction of the air outlet cover 120.

In the embodiment of the present invention, the housing 110 extends in the up-down direction, wherein the housing 110 may be integrally formed, and of course, the housing 110 may be separately formed, which is not limited specifically. An indoor air inlet 113 is formed in the middle or lower end of the casing 110, an air outlet cover 120 is arranged at the upper end of the casing 110, and a heat exchange air duct which is communicated with the indoor air inlet 113 and the air outlet cover 120 is formed in the casing 110. Thus, after the air flows into the heat exchange air duct from the indoor air inlet 113, the air flows further to the air outlet cover 120 and is blown out through the air outlet hole 121 on the air outlet cover 120. In order to ensure that the air blown out by the floor-type air conditioner indoor unit 100 is clean, a filter screen may be disposed on the inner side of the air outlet cover 120, so that the air flowing to the air outlet cover 120 is filtered by the filter screen. Meanwhile, in order to prevent impurities such as dust and bacteria in indoor air from entering the air conditioner through the indoor air inlet 113, a filter screen can be arranged at the indoor air inlet 113 so as to filter the air entering the air conditioner. The shape of the filter screen may be very large, and is specifically determined according to the shapes of the indoor air inlet 113 and the air outlet cover 120, and is not particularly limited.

The air outlet cover 120 is substantially cap-shaped, and the specific shape of the air outlet cover 120 is not limited. For example, the shape of the air outlet cover 120 may be cylindrical, conical, hemispherical, square, or other shaped. The lower end opening of the cap-shaped outlet cover 120 is fitted with the upper end opening of the outer case 110 so that the outlet cover 120 can be installed at the opening of the outer case 110. In addition, the air outlet cover 120 may be fixed at the opening of the housing 110, or may be rotatably mounted at the opening of the housing 110, which will be described in detail below.

A plurality of air outlet holes 121 are formed in the circumferential direction of the air outlet cover 120, so that on one hand, circumferential air supply of the air outlet cover 120 can be realized, the air supply range is enlarged, the air blown out from the air outlet cover 120 is prevented from directly blowing users, on the other hand, the air outlet area is enlarged, and the air outlet quantity is further improved; in addition, the air flow of the air outlet can be dispersed, so that the air outlet is softer, and the air outlet effect without wind sense or breeze sense is realized. The shape of the air outlet 121 may be circular, oval, diamond, square, polygonal, or other special-shaped shapes. The air outlet hole 121 may be formed in various manners, for example, in an embodiment, the air outlet cover 120 includes a top plate, an annular bottom plate, a plurality of first grid bars, and a plurality of second grid bars, where the top plate and the annular bottom plate are disposed at intervals, the plurality of first grid bars and the plurality of second grid bars are disposed between the top plate and the annular bottom plate, and are connected to the peripheral edge of the top plate and the peripheral edge of the annular bottom plate, the plurality of first grid bars extend toward a first direction, and the plurality of second grid bars extend toward a second direction, and the first direction and the second direction form an included angle. In this way, the plurality of first grid bars and the plurality of second grid bars are disposed to intersect with each other to form a plurality of diamond-shaped air outlet holes 121, that is, grid-shaped air outlet holes 121. For another example, in another embodiment, the air outlet cover 120 includes a cylinder, the interior of the cylinder is hollow and the lower end of the cylinder is open, and a plurality of air outlet holes 121 are formed through the peripheral wall of the cylinder.

The floor type air conditioner indoor unit 100 comprises a shell 110 and an air outlet cover 120, wherein the upper end of the shell 110 is open, the air outlet cover 120 is arranged at the opening of the shell 110, and a plurality of air outlet holes 121 are formed in the circumferential direction of the air outlet cover 120, so that the air supply range is enlarged, the air blown out from the air outlet cover 120 can be effectively prevented from directly blowing users, the air outlet area is enlarged, the air outlet quantity is improved, and the comfort of the floor type air conditioner indoor unit 100 is improved.

Referring to fig. 1, in an embodiment, the air outlet cover 120 is gradually widened from top to bottom. Specifically, the air outlet cover 120 is substantially conical. By providing the conical air outlet cover 120, the air outlet flow can be further blown out toward the ceiling, so that the user can be effectively prevented from being directly blown out by the air outlet flow, and the comfort of the floor-type air conditioner indoor unit 100 is further improved. It will be appreciated that, in other embodiments, the air outlet cover 120 may be configured in a straight cylindrical shape, so that the air flow through the air outlet holes 121 on the air outlet cover 120 may blow out toward the peripheral side of the air outlet cover 120, and may also avoid the air flow from blowing straight toward the user in one direction.

In order to make the air outlet softer, thereby better realizing the air outlet effect without wind sense or with slight wind sense, in an embodiment, the air outlet cover 120 can be rotated, and the air outlet flow is scattered finer by the rotation of the air outlet cover 120, thereby making the air outlet softer. Specifically, the air outlet cover 120 has a rotation axis extending in an up-down direction, and the air outlet cover 120 is rotatably installed at an opening of the housing 110 and is rotatable about the rotation axis. It should be noted here that the rotation axis of the air outlet cover 120 may coincide with the central axis of the housing 110, and of course, the rotation axis of the air outlet cover 120 may also be different from the central axis of the housing 110, which is not specifically limited.

The manner of driving the air outlet cover 120 to rotate may be through air flow driving or through a driving device. For example, in some embodiments, the floor-type indoor unit 100 further includes a rotating device 130 disposed at a lower end of the air outlet cover 120, where the rotating device 130 is connected to the air outlet cover 120, so as to drive the air outlet cover 120 to rotate under the driving of the air flow. Specifically, the rotating device 130 includes a rotating shaft 131 and a plurality of rotating blades 132, the rotating shaft 131 is located on the rotating shaft line of the air outlet cover 120, and the plurality of rotating blades 132 are mounted on the rotating shaft 131 and connected with the air outlet cover 120.

In this embodiment, a plurality of rotary blades 132 are arranged at intervals in the circumferential direction of the rotary shaft 131. When the airflow passes through the rotating blades 132, the rotating blades 132 can rotate around the rotating shaft 131 under the action of the airflow, and the rotating blades 132 rotate to drive the air outlet cover 120 to rotate because the rotating blades 132 are connected with the air outlet cover 120. The structure of the rotary blade 132 is not particularly limited, and for example, the rotary blade 132 may have a planar structure, and may have a cambered structure. In addition, the extending direction of the rotating blade 132 may be disposed at an angle with the axial direction of the rotating shaft 131 (as shown in fig. 6), so that the stress surface of the rotating blade 132 may be increased, and the rotating blade 132 may rotate more easily under the action of the airflow. However, the extending direction of the rotary blade 132 is not limited thereto, and may be parallel to the axial direction of the rotary shaft 131. Further, the number of the rotary blades 132 may be odd or even, and is not particularly limited. Considering that an excessive number of the rotating blades 132 may result in a large weight of the entire rotating device 130, thereby affecting the rotation of the rotating device 130, in some embodiments, the number of the rotating blades 132 may be three, and the three rotating blades 132 may be arranged at intervals along the circumferential direction of the rotating shaft 131 (as shown in fig. 6).

Further, in order to facilitate the installation of the rotating device 130 at the lower end of the air outlet cover 120, the rotating device 130 further includes an annular fixing frame 133 installed at the lower end of the air outlet cover 120, where the annular fixing frame 133 is disposed at the periphery of the plurality of rotating blades 132 and is connected to the plurality of rotating blades 132. Specifically, the annular fixing frame 133 is mounted on the annular bottom plate of the air outlet cover 120, and the annular fixing frame 133 is detachably connected with the annular bottom plate of the air outlet cover 120, for example, a snap connection or a screw connection. By providing the annular fixing frame 133 at the periphery of the plurality of rotary blades 132, the rotary blades 132 are fixed to the air outlet cover 120 by using the annular fixing frame 133, the rotary blades 132 can be more stably fixed to the air outlet cover 120, and the whole installation and the disassembly of the rotary device 130 are facilitated. It will be appreciated that a plurality of rotary blades 132 may also be secured directly to the annular base plate of the outlet cowl 120.

In other embodiments, the floor-type indoor unit 100 further includes a first driving device connected to the air outlet cover 120 to drive the air outlet cover 120 to rotate. Specifically, the first driving device includes a motor and a transmission assembly, and the motor is connected to the air outlet cover 120 through the transmission assembly, so as to drive the air outlet cover 120 to rotate. The structure of the transmission assembly may be various, such as a gear set transmission assembly or a rack and pinion transmission assembly, and is not particularly limited.

Referring to fig. 2 and 3, the housing 110 includes an upper shell 111, a middle shell 112 and a base 114, wherein the middle shell 112 is disposed between the upper shell 111 and the base 114 and connects the upper shell 111 and the base 114. The upper casing 111 is disposed at the lower end of the air outlet cover 120, and the upper end of the upper casing 111 is disposed in an open manner.

In one embodiment, the floor-standing indoor unit 100 further includes a fan assembly 140, and the fan assembly 140 is installed in the upper casing 111. Specifically, the fan assembly 140 includes a wind wheel 141 and a wind wheel motor 142 that drives the wind wheel 141 to rotate. When the wind wheel motor 142 drives the wind wheel 141 to rotate, the air flow can be driven to enter from the indoor air inlet 113 and then be blown out from the air outlet hole 121 of the air outlet cover 120. The wind wheel 141 may be an axial flow wind wheel or an oblique flow wind wheel, and is not limited specifically.

In this embodiment, in order to install the wind wheel motor 142, a motor bracket 143 is disposed in the upper housing 111, the motor bracket 143 is located above the wind wheel 141, and the wind wheel motor 142 is fixed to the motor bracket 143. In addition, the motor bracket 143 is positioned below the rotating means 130. A fixed shaft extending downward is provided below the rotation shaft 131, and is rotatably mounted on the motor bracket 143. Specifically, the motor bracket 143 is provided with a fixing hole, and the fixing shaft is rotatably mounted in the fixing hole, so that the motor bracket 143 can play a role in supporting the rotating device 130.

In one embodiment, the periphery of the middle housing 112 is provided with an indoor air inlet 113. The number of the indoor air inlets 113 may be one, two or more, etc., and is not particularly limited. Here, when the number of the indoor air inlets 113 is one, in order to increase the air inlet area, improve the air inlet amount, increase the heat exchange efficiency, and enable the indoor air inlets 113 to be annularly arranged, so that 360-degree air inlet without dead angles can be realized.

Referring to fig. 7, the floor-type indoor unit 100 further includes a heat exchanger 150, and the heat exchanger 150 is disposed in the middle housing 112 corresponding to the indoor air inlet 113. Because the indoor air inlet 113 is disposed on the periphery of the middle housing 112, the heat exchanger 150 is substantially annular in order to increase the heat exchange area and improve the heat exchange efficiency, and thus, the air flow entering from the indoor air inlet 113 on the periphery of the middle housing 112 can exchange heat with the heat exchanger 150.

Considering that the indoor air inlet 113 is large, impurities such as indoor dust and bacteria are likely to enter the air conditioner from the indoor air inlet 113, thereby affecting the physical health of a user, so in order to prevent the impurities such as dust and bacteria from entering the air conditioner, an annular expansion door 160 may be provided at the periphery of the indoor air inlet 113.

Referring to fig. 1 to 3, in an embodiment, the floor type indoor unit 100 further includes an annular expansion door 160 disposed at the periphery of the indoor air inlet 113, where the annular expansion door 160 can move up and down to have an extended state for closing the indoor air inlet 113 and a contracted state for opening the indoor air inlet 113.

When the annular expansion door 160 is in an extended state, the annular expansion door 160 closes the indoor air inlet 113, and at this time, impurities such as indoor dust and bacteria can be prevented from entering the air conditioner. When the annular expansion door 160 is in a contracted state, the annular expansion door 160 opens the indoor air inlet 113, and at this time, the indoor air can enter through the indoor air inlet 113, exchange heat with the heat exchanger 150, and then blow up to the air outlet cover 120, and blow out through the air outlet hole 121 on the air outlet cover 120. There are various structures for the ring-shaped expansion gate 160, for example, in one embodiment, the ring-shaped expansion gate 160 includes an expansion unit that is an integral structure extending in the up-down direction.

In view of the fact that the annular expansion door 160 occupies a certain accommodation space when in a contracted state, in order to save the internal space of the air conditioner, in another embodiment, the annular expansion door 160 includes at least two expansion units, at least two expansion units are sequentially sleeved in the up-down direction, and two adjacent expansion units can slide relatively in the up-down direction. In this embodiment, when the annular expansion door 160 is in the contracted state, at least two expansion units are sequentially sleeved in the up-down direction, and the two adjacent expansion units can slide relatively in the up-down direction, so that the at least two expansion units can be sleeved from the inner layer to the outer layer, thereby saving the storage space and further reducing the overall height of the floor-type air conditioner indoor unit 100.

Referring to fig. 1 to 3, for example, but not limited to, in an embodiment, the annular expansion door 160 includes a first expansion unit 161, a second expansion unit 162, and a third expansion unit 163 arranged from top to bottom, the second expansion unit 162 is sleeved outside the first expansion unit 161, the third expansion unit 163 is sleeved outside the second expansion unit 162, and the first expansion unit 161 can slide up and down relative to the second expansion unit 162, and the second expansion unit 162 can slide up and down relative to the third expansion unit 163.

When the ring-shaped expansion door 160 is in an extended state, the first expansion unit 161, the second expansion unit 162, and the third expansion unit 163 are sequentially connected in the up-down direction, thereby closing the indoor air inlet 113; when the indoor air inlet 113 needs to be opened, the first telescopic unit 161, the second telescopic unit 162 and the third telescopic unit 163 can be sequentially slid downwards, so that the first telescopic unit 161 is stored in the second telescopic unit 162, the second telescopic unit 162 is stored in the third telescopic unit 163, and the third telescopic unit 163 is stored in the base 114, and thus the annular telescopic door 160 is in a contracted state, and the indoor air inlet 113 is opened.

Specifically, the top of the second telescopic unit 162 and the top of the third telescopic unit 163 are respectively provided with a first boss, and the bottom of the first telescopic unit 161 and the bottom in the second telescopic unit 162 are respectively provided with a second boss. When the second boss at the bottom of the first telescopic unit 161 is abutted with the first boss at the top of the second telescopic unit 162, the second telescopic unit 162 can be driven to move upwards, and when the second boss at the bottom of the second telescopic unit 162 is abutted with the first boss at the top of the third telescopic unit 163, the third telescopic unit 163 can be driven to move upwards until the indoor air inlet 113 is closed.

It will be appreciated that the ring-shaped expansion gate 160 may be driven to move up and down by manual driving, or the ring-shaped expansion gate 160 may be driven to move up and down by driving of a driving device. In order to realize automation, the floor type air conditioner indoor unit 100 further comprises a second driving device 170, and the second driving device 170 is connected with the annular expansion door 160 to drive the annular expansion door 160 to move up and down.

Referring to fig. 8 to 11, in an embodiment, the second driving device 170 includes a motor, a driving wheel 171, a fixed pulley 172, and a transmission member 173, wherein the fixed pulley 172 is located above the driving wheel 171, the transmission member 173 is in transmission connection with the driving wheel 171 and the fixed pulley 172, the motor is connected with the driving wheel 171 to drive the driving wheel 171 to rotate, and the annular sliding door is connected with the transmission member 173.

Specifically, the driving member 173 may be a driving rope, a driving belt, a driving chain, or the like. The motor may be connected to the driving wheel 171 through a gear and other mechanisms to drive the driving member 173 to move, and the movement of the driving member 173 drives the annular sliding door to move. For better connection of the fixed annular sliding door, a fixed slider 174 may be further provided on the transmission member 173, the fixed slider 174 being connected to the annular sliding door. The fixed slider 174 is connected to the first telescopic unit 161. When the motor drives the driving wheel 171 to rotate clockwise, the driving piece 173 is driven to move upwards, the fixed sliding block 174 arranged on the driving piece 173 is synchronously driven to move upwards, the first telescopic unit 161 is driven to move upwards first, when the second boss at the bottom of the first telescopic unit 161 is in butt joint with the first boss at the top of the second telescopic unit 162, the second telescopic unit 162 is driven to move upwards, and when the second boss at the bottom of the second telescopic unit 162 is moved to be in butt joint with the first boss at the top of the third telescopic unit 163, the third telescopic unit 163 is driven to move upwards until the indoor air inlet 113 is closed. When the motor drives the driving wheel 171 to rotate anticlockwise, the driving member 173 is driven to move downwards, and the fixed slider 174 disposed on the driving member 173 is synchronously driven to move downwards, so as to sequentially drive the first telescopic unit 161, the second telescopic unit 162 and the third telescopic unit 163 to move downwards until the indoor air inlet 113 is opened.

In order to facilitate the installation of the second driving device 170, the second driving device 170 further includes a mounting plate 175, the mounting plate 175 extends in the up-down direction and is mounted on the outer side of the heat exchanger 150, the driving wheel 171 and the fixed pulley 172 are both mounted on the mounting plate 175, and the fixed slider 174 is slidably mounted on the mounting plate 175. In addition, in order to enable the ring-shaped expansion gate 160 to move up and down very smoothly, in one embodiment, the number of the second driving devices 170 is at least two, and at least two of the second driving devices 170 are disposed at the circumference side of the ring-shaped expansion gate 160.

Referring to fig. 2 and 3, in order to accommodate the annular expansion door 160, an upwardly opening accommodating cavity 115 may be provided on the base 114 for accommodating the annular expansion door 160. The annular expansion gate 160 is capable of sliding into the accommodating chamber 115 through the opening to place the annular expansion gate 160 in a contracted state, and the annular expansion gate 160 is also capable of sliding out of the accommodating chamber 115 through the opening to place the annular expansion gate 160 in an expanded state.

Without loss of generality, the floor-type air conditioner indoor unit 100 further includes a water pan 180, and the water pan 180 is disposed at the bottom of the heat exchanger 150.

In order to introduce fresh air and improve indoor air quality, so as to further improve comfort of the floor type air conditioner indoor unit 100, a fresh air inlet 116 may be further provided at the bottom of the housing 110, a fresh air through-opening is provided on the water receiving tray 180, and a fresh air duct communicating the fresh air inlet 116 with the fresh air through-opening is provided in the housing 110. In this way, the outdoor fresh air can be introduced into the fresh air duct, flows into the heat exchange duct through the fresh air port, and finally is blown out through the air outlet hole 121 of the air outlet cover 120. On one hand, the fresh air can be mixed with the air flow of the heat exchange air duct to avoid supercooling or overheating of the blown fresh air, and on the other hand, the fresh air can be blown out through the air outlet cover 120 to be scattered through the fresh air flow, so that the effect of no or slight wind sensation of the fresh air is improved.

Further, in an embodiment, a switch door 181 may be further disposed at the fresh air vent for opening or closing the fresh air vent.

When the opening and closing door 181 opens the fresh air passing opening, the fresh air channel is communicated with the heat exchange air channel, and if the annular air outlet door opens the indoor air inlet 113, outdoor fresh air enters the fresh air channel from the fresh air inlet 116, flows into the heat exchange air channel through the fresh air passing opening, is mixed with air entering the heat exchange air channel from the indoor air inlet 113, and then the mixed air is blown out from the air outlet hole 121 of the air outlet cover 120. When the opening and closing door 181 opens the fresh air passing opening, the fresh air channel is communicated with the heat exchange air channel, and if the annular air outlet door closes the indoor air inlet 113, outdoor fresh air enters the fresh air channel from the fresh air inlet 116, flows into the heat exchange air channel through the fresh air passing opening, finally flows to the air outlet cover 120, and is blown out through the air outlet hole 121 of the air outlet cover 120. When the switch door 181 closes the fresh air passing opening, the fresh air duct is not communicated with the heat exchange duct, and the air conditioner can realize a normal cooling and heating mode at this time, that is, air enters the heat exchange duct from the indoor air inlet 113 and is blown out from the air outlet 121 of the air outlet cover 120.

The switch door 181 may be slidably mounted at the fresh air passing opening, or may be rotatably mounted at the fresh air passing opening, or may be swingably mounted at the fresh air passing opening. In order to drive the switch door 181 to move, the floor-type air conditioner indoor unit 100 further includes a third driving device connected to the switch door 181 to drive the switch door 181 to move, thereby opening or closing the fresh air vent. The structure of the third driving device may be numerous and is not particularly limited.

In order to purify the outdoor fresh air, in an embodiment, the floor-type air conditioner indoor unit 100 further includes a purification module 190, and the purification module 190 is disposed in the fresh air duct.

The purification module 190 may be of various types, such as a primary filter, a medium-efficiency filter, a high-efficiency filter, a HEPA filter, a negative ion device, an ultraviolet sterilization device, etc. The purification module 190 is mainly used for filtering, purifying, sterilizing, disinfecting and the like outdoor fresh air. In addition, the purification module 190 may include a plurality of purification units in order to achieve a better purification effect. Specifically, the purifying module 190 includes a first purifying unit 191 and a second purifying unit 192, and the first purifying unit 191 is disposed above the second purifying unit 192. Here, the specific structures of the first and

second purifying units

191 and 192 are not limited. Those skilled in the art can make the selection according to actual needs.

The invention also provides an air conditioner, which comprises a floor type air conditioner indoor unit 100 and an air conditioner outdoor unit, wherein the floor type air conditioner indoor unit 100 is connected with the air conditioner outdoor unit through a refrigerant pipe. The specific structure of the floor type air conditioner indoor unit 100 refers to the above embodiments, and because the air conditioner adopts all the technical solutions of all the embodiments, at least has all the beneficial effects brought by the technical solutions of the embodiments, and will not be described in detail herein.

The foregoing description is only of the optional embodiments of the present invention, and is not intended to limit the scope of the invention, and all the equivalent structural changes made by the description of the present invention and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the invention.

Claims

1. A floor-type air conditioner indoor unit, comprising:

a housing having an upper end thereof open; and

the air outlet cover is arranged at the opening of the shell, and a plurality of air outlet holes are formed in the circumferential direction of the air outlet cover;

an indoor air inlet is formed in the peripheral side of the shell, and the floor type air conditioner indoor unit further comprises a heat exchanger which is arranged in the shell corresponding to the indoor air inlet; the indoor air inlet is annularly arranged;

the floor type air conditioner indoor unit further comprises an annular telescopic door arranged on the periphery of the indoor air inlet, wherein the annular telescopic door can move up and down to be in an extending state for closing the indoor air inlet and a contracting state for opening the indoor air inlet;

the annular telescopic door comprises at least two telescopic units, at least two telescopic units are sequentially sleeved in the up-down direction, and two adjacent telescopic units can slide relatively in the up-down direction;

the floor type air conditioner indoor unit further comprises a second driving device, wherein the second driving device is connected with the annular telescopic door so as to drive the annular telescopic door to move up and down;

the second driving device comprises a motor, a driving wheel, a fixed pulley and a transmission piece, wherein the fixed pulley is positioned above the driving wheel, the transmission piece is in transmission connection with the driving wheel and the fixed pulley, the motor is connected with the driving wheel to drive the driving wheel to rotate, and the annular sliding door is connected with the transmission piece; the transmission piece is provided with a fixed sliding block, and the fixed sliding block is connected with the annular sliding door.

2. The floor-type air conditioner indoor unit of claim 1, wherein the air outlet cover is gradually widened from top to bottom.

3. The floor-type air conditioner indoor unit of claim 2, wherein the air outlet hole has a circular, oval or polygonal shape.

4. The floor-type air conditioner indoor unit of claim 2, wherein the air outlet cover has a rotation axis extending in an up-down direction, and the air outlet cover is rotatably installed at the opening of the housing and is rotatable about the rotation axis.

5. The indoor unit of claim 4, further comprising a rotating device disposed at a lower end of the air outlet cover, wherein the rotating device is connected to the air outlet cover to drive the air outlet cover to rotate under the driving of air flow.

6. The floor-type air conditioner indoor unit of claim 5, wherein the rotating device comprises a rotating shaft and a plurality of rotating blades, the rotating shaft is located on the rotating shaft line of the air outlet cover, and the plurality of rotating blades are installed on the rotating shaft and connected with the air outlet cover.

7. The indoor unit of claim 6, wherein the rotating device further comprises an annular fixing frame installed at a lower end of the air outlet cover, and the annular fixing frame is disposed at an outer periphery of the plurality of rotating blades and connected with the plurality of rotating blades.

8. The floor-type air conditioner indoor unit of claim 4, further comprising a first driving device connected to the air outlet cover to drive the air outlet cover to rotate.

9. The floor-type air conditioner indoor unit according to any one of claims 2 to 8, wherein the casing includes an upper housing provided at a lower end of the air outlet cover, and further includes a blower assembly installed in the upper housing.

10. The indoor unit of claim 1, wherein the annular expansion door comprises a first expansion unit, a second expansion unit and a third expansion unit which are arranged from top to bottom, the second expansion unit is sleeved outside the first expansion unit, the third expansion unit is sleeved outside the second expansion unit, the first expansion unit can slide up and down relative to the second expansion unit, and the second expansion unit can slide up and down relative to the third expansion unit.

11. The floor-type air conditioner indoor unit of claim 1, wherein the number of the second driving devices is at least two, and at least two of the second driving devices are disposed at the circumferential side of the ring-shaped expansion door.

12. The floor-standing indoor unit of claim 1, wherein the housing includes a base with an upwardly opening receiving cavity for receiving the annular expansion door.

13. The floor-type air conditioner indoor unit of claim 1, further comprising a water pan, wherein the water pan is arranged at the bottom of the heat exchanger, a fresh air inlet is arranged at the bottom of the shell, a fresh air through-opening is arranged on the water pan, a fresh air channel which is communicated with the fresh air inlet and the fresh air through-opening is arranged in the shell, and an opening and closing door is arranged at the fresh air through-opening for opening or closing the fresh air through-opening.

14. The floor-type air conditioner indoor unit of claim 13, further comprising a purification module disposed within the fresh air duct.

15. An air conditioner, characterized by comprising an air conditioner outdoor unit and a floor type air conditioner indoor unit according to any one of claims 1 to 14, wherein the floor type air conditioner indoor unit is connected with the air conditioner outdoor unit through a refrigerant pipe.