CN214841224U - Air conditioner indoor unit and air conditioner - Google Patents

Air conditioner indoor unit and air conditioner Download PDF

Info

Publication number
CN214841224U
CN214841224U CN202120839373.3U CN202120839373U CN214841224U CN 214841224 U CN214841224 U CN 214841224U CN 202120839373 U CN202120839373 U CN 202120839373U CN 214841224 U CN214841224 U CN 214841224U
Authority
CN
China
Prior art keywords
air
fan
indoor unit
air inlet
casing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202120839373.3U
Other languages
Chinese (zh)
Inventor
谢鹏
陈志航
罗凌
李珊
周何杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GD Midea Air Conditioning Equipment Co Ltd
Handan Midea Air Conditioning Equipment Co Ltd
Original Assignee
GD Midea Air Conditioning Equipment Co Ltd
Handan Midea Air Conditioning Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GD Midea Air Conditioning Equipment Co Ltd, Handan Midea Air Conditioning Equipment Co Ltd filed Critical GD Midea Air Conditioning Equipment Co Ltd
Priority to CN202120839373.3U priority Critical patent/CN214841224U/en
Application granted granted Critical
Publication of CN214841224U publication Critical patent/CN214841224U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The utility model discloses a machine and air conditioner in air conditioning, wherein, the machine includes the casing in the air conditioning, the interior machine air outlet has been seted up on the casing, the height of casing is H, the opening length of interior machine air outlet is H, and wherein, 0.25 is less than or equal to H/H is less than or equal to 0.45, through optimizing the machine structure in the air conditioning rationally lays the height and size of interior machine air outlet promotes air-out efficiency, improves the air-out effect, has improved user experience.

Description

Air conditioner indoor unit and air conditioner
Technical Field
The utility model relates to an air conditioner technical field, in particular to machine and air conditioner in air conditioning.
Background
Present square cabinet-type air conditioner is under the same amount of wind, less air outlet relatively, the wind speed is higher, wind sense is more strong when the nearly department in wind gap is bloied, can be stronger to the uncomfortable sense of wind, less air outlet relatively can increase the resistance of air-out, the energy consumption of motor has been increased, the installation of the inside structure of cabinet-type air conditioner can be influenced in the export of great wind relatively, consequently, how to set up the air outlet of cabinet-type air conditioner, the problem of waiting to solve is a urgent need in order to improve user's experience.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a machine and air conditioner in air conditioning aims at optimizing current machine in the air conditioning to improve user experience.
In order to achieve the above object, the utility model provides an air-conditioning indoor unit, which comprises a housing, the interior machine air outlet has been seted up on the casing, the height of casing is H, the opening length of interior machine air outlet is H, and wherein, 0.25 is less than or equal to H/H is less than or equal to 0.45.
In some embodiments, the width of the casing is W, correspondingly, the opening width of the air outlet of the internal machine is b, and b/W is greater than or equal to 0.70 and less than or equal to 0.95.
In some embodiments, the opening length of the effective air outlet portion of the inner machine air outlet is H1, and the opening width of the effective air outlet portion of the inner machine air outlet is b1, wherein H1 is equal to or less than H, H1/H is equal to or more than 0.25 and equal to or less than 0.45, b1 is equal to or less than b, and b1/W is equal to or more than 0.70 and equal to or less than 0.95.
In some embodiments, the casing is further provided with an inner machine air inlet, a casing air duct communicating the inner machine air inlet and the inner machine air outlet is formed in the casing, and a fan is arranged in the casing air duct;
and the rear wall and/or the side wall of the shell is/are provided with the air inlet of the internal machine.
In some embodiments, the fan is a double-suction centrifugal fan, the double-suction centrifugal fan includes a fan housing, a fan duct is formed in the fan housing, the fan duct has two fan inlets formed at two ends of the fan housing in an axial direction, and a fan outlet formed at a side portion of the fan housing, the fan outlet is communicated with the inner unit outlet, and both the fan inlets are communicated with the inner unit inlet.
In some embodiments, the rear wall or a side wall of the casing is provided with the inner machine air inlet;
one fan air inlet is arranged corresponding to the inner machine air inlet, and the other fan air inlet is communicated with the inner machine air inlet through a communicating flow passage.
In some embodiments, two inner machine air inlets are arranged, each inner machine air inlet comprises a front inner machine air inlet and a rear inner machine air inlet which are distributed in the front-back direction, and both the front inner machine air inlet and the rear inner machine air inlet can be communicated with the inner machine air outlet through the shell air duct;
and the two fan air inlets are communicated with the front inner machine air inlet, and the two fan air inlets are also communicated with the rear inner machine air inlet.
In some embodiments, the rear inner machine air inlet is arranged on the rear wall of the machine shell, and the front inner machine air inlet is arranged on the side wall of the machine shell;
one fan air inlet is arranged corresponding to the front inner machine air inlet and communicated with the rear inner machine air inlet through a communicating flow passage, and the other fan air inlet is arranged corresponding to the rear inner machine air inlet and communicated with the front inner machine air inlet through the communicating flow passage.
In some embodiments, at least one of the two fan air inlets is communicated with the inner machine air inlet through a communication flow passage;
the communicating flow channel is positioned in the shell air duct and is formed on the double-suction centrifugal fan and/or between the double-suction centrifugal fan and the inner wall of the shell air duct.
In some embodiments, the fan shell is provided with a communication hole extending along the axial direction of the fan shell;
the communication flow passage includes the communication hole;
the fan shell comprises a volute and a volute tongue arranged on the volute, the volute and the volute tongue jointly define the fan air duct, and the extension path of the communication hole is located on one side of the volute tongue.
In some embodiments, the lower end of the fan housing is positioned above the bottom wall of the housing air duct such that a communication gap is formed between the lower end of the fan housing and the bottom wall of the housing air duct;
the communication flow passage includes the communication gap.
In some embodiments, the double suction centrifugal fan further comprises a centrifugal wind wheel arranged on the fan air duct, the centrifugal wind wheel is provided with two wind wheel sections distributed in the axial direction of the centrifugal wind wheel, and the lengths of the two wind wheel sections in the axial direction of the centrifugal wind wheel sections are not equal;
the double-suction centrifugal fan also comprises a middle partition plate, and the middle partition plate is arranged in the centrifugal wind wheel;
the two wind wheel sections are formed on two opposite sides of the middle clapboard;
the air inlet of the internal machine is arranged on the rear wall of the shell;
the longer wind wheel section is arranged towards the rear wall of the shell;
the double-suction centrifugal fan further comprises a driving motor, and the driving motor is arranged in the longer wind wheel section and is installed on the shell and/or the fan shell.
In some embodiments, the double suction centrifugal fan comprises a drive motor, a motor base of the drive motor is fixedly mounted on the chassis and/or the fan housing;
the air inlet of the internal machine is arranged on the rear wall of the shell;
the driving motor is arranged corresponding to the fan air inlet opposite to the inner machine air inlet;
the air-conditioning indoor unit further comprises a connecting seat, a first connecting portion and a second connecting portion are formed on the connecting seat, the first connecting portion can be detachably connected to a motor base of the driving motor, and the second connecting portion can be detachably connected to the shell and/or the fan shell.
In some embodiments, the connecting base comprises a connecting plate and a plurality of connecting arms extending outwards from the side of the connecting plate, and the connecting arms are arranged at intervals along the circumferential direction of the connecting plate;
the first connection portion includes the connection plate;
the second connecting portion includes the plurality of connecting arms;
and a second air hole communicated with the air inlet of the fan is formed between every two adjacent connecting arms.
In some embodiments, the indoor unit of the air conditioner further comprises an indoor heat exchanger, and the indoor heat exchanger is arranged in the shell air duct;
the air inlet of the inner machine is arranged on the rear wall of the shell, and one fan air inlet of the double-suction centrifugal fan is arranged corresponding to the air inlet of the inner machine;
the double-suction centrifugal fan further comprises a centrifugal wind wheel rotatably mounted on the fan air duct, and the rotating axis of the centrifugal wind wheel is arranged corresponding to the middle position of the indoor heat exchanger;
and along the radial direction of the centrifugal wind wheel, the deviation size of the rotating axis of the centrifugal wind wheel and the center of the indoor heat exchanger is L, and L is more than or equal to 0mm and less than or equal to 150 mm.
The utility model also provides an air conditioner, air conditioner includes the air conditioning indoor unit, the air conditioning indoor unit includes the casing, the interior machine air outlet has been seted up on the casing, the height of casing is H, the opening length of interior machine air outlet is H, and wherein, 0.25 is less than or equal to H/H is less than or equal to 0.45.
The utility model provides an among the technical scheme, the height of casing is H, the interior machine air outlet set up in the front panel of casing, the opening length of interior machine air outlet is H, and wherein, 0.25 is less than or equal to H/H and is less than or equal to 0.45, through optimizing the machine structure is rationally laid in the air conditioning the size of height of interior machine air outlet promotes air-out efficiency, improves the air-out effect, has improved user experience.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic front view of an indoor unit of an air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic diagram showing the comparison of the motor rotation speed and the air volume under the condition that the b/W ratio of the air conditioning indoor unit in fig. 1 is fixed to be 0.84 and the air outlet height ratios of the air outlets of the indoor unit are different;
fig. 3 is a schematic diagram showing the comparison of the motor rotation speed and the air volume under the condition that the b/W ratio of the air conditioning indoor unit in fig. 1 is fixed to be 0.84 and the air outlet height ratios of the air outlets of the indoor unit are different;
fig. 4 is a schematic diagram showing the comparison of the power and the air volume of the motor under different air outlet width ratios of the air outlets of the indoor unit, under the premise that the H/H ratio is fixed to 0.3, by using the air conditioning indoor unit in fig. 1;
fig. 5 is a schematic perspective view of the air conditioning indoor unit of fig. 1 according to a first embodiment (at an angle);
fig. 6 is a schematic perspective view of the indoor unit of fig. 5 (at another angle);
fig. 7 is a first exploded perspective view of the indoor unit of fig. 5 (at one angle);
fig. 8 is a first exploded perspective view of the indoor unit of fig. 5 (at another angle);
fig. 9 is a schematic cross-sectional view of the air conditioning indoor unit of fig. 5;
fig. 10 is a second exploded perspective view of the indoor unit of fig. 5 (at one angle);
fig. 11 is a second exploded perspective view of the indoor unit of fig. 5 (at another angle);
fig. 12 is a schematic perspective view of the double-suction centrifugal fan in fig. 5;
FIG. 13 is an exploded view of the air conditioning indoor unit of FIG. 5 (a double suction centrifugal fan and an indoor heat exchanger);
FIG. 14 is a perspective view of the indoor heat exchanger and water pan assembly of FIG. 5;
fig. 15 is a perspective view of a second embodiment (at an angle) of the air conditioning indoor unit of fig. 1;
fig. 16 is a first exploded perspective view of the indoor unit of fig. 15 (at another angle);
fig. 17 is a first exploded perspective view of the indoor unit of fig. 15 (at a further angle);
fig. 18 is a schematic cross-sectional view of the air conditioning indoor unit of fig. 15;
fig. 19 is a second exploded perspective view of the indoor unit of fig. 15 (at another angle);
fig. 20 is a second exploded perspective view of the indoor unit of fig. 15 (at a second angle);
FIG. 21 is a perspective view of the double suction centrifugal fan of FIG. 15 (at an angle);
FIG. 22 is a perspective view of the double suction centrifugal fan of FIG. 15 (at another angle);
fig. 23 is a perspective view of the indoor heat exchanger and the water pan of fig. 15.
The reference numbers illustrate:
reference numerals Name (R) Reference numerals Name (R)
100 Indoor unit of air conditioner 211 Fan air duct
1 Casing (CN) 212 Air inlet of fan
11 Air outlet of inner machine 213 Air outlet of fan
12 Air inlet of indoor unit 214 Spiral casing
12a Front inner machine air inlet 215 Volute tongue
12b Air inlet of rear inner machine 22 Centrifugal wind wheel
13 Casing air duct 23 Middle partition board
14 Connecting seat 231 The first air hole
141 Connecting plate 24 Driving motor
142 Connecting arm 3 Communicating flow passage
1421 Second air hole 3a Communicating hole
15 Front panel 3b Communicating gap
2 Double-suction centrifugal fan 4 Indoor heat exchanger
21 Fan shell 5 Water pan
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.
Present square cabinet-type air conditioner is under the same amount of wind, less air outlet relatively, the wind speed is higher, wind sense is more strong when the nearly department in wind gap is bloied, can be stronger to the uncomfortable sense of wind, less air outlet relatively can increase the resistance of air-out, the energy consumption of motor has been increased, the installation of the inside structure of cabinet-type air conditioner can be influenced in the export of great wind relatively, consequently, how to set up the air outlet of cabinet-type air conditioner, the problem of waiting to solve is a urgent need in order to improve user's experience.
In view of this, the present invention provides an indoor unit of an air conditioner, which is within the protection scope of the present invention as long as the air conditioner comprises the indoor unit of the air conditioner, wherein fig. 1 is a schematic view of the main view structure of an embodiment of the indoor unit of the air conditioner provided by the present invention; fig. 2 is a schematic diagram showing the comparison of the motor rotation speed and the air volume under the condition that the b/W ratio of the air conditioning indoor unit in fig. 1 is fixed to be 0.84 and the air outlet height ratios of the air outlets of the indoor unit are different; fig. 3 is a schematic diagram showing the comparison of the power and the air volume of the motor under different air outlet width ratios of the air outlets of the indoor unit, under the premise that the H/H ratio is fixed to 0.3, by using the air conditioning indoor unit in fig. 1; fig. 4 is a schematic diagram showing the comparison of the motor rotation speed and the air volume under the condition that the b/W ratio of the air conditioning indoor unit in fig. 1 is fixed to be 0.84 and the air outlet height ratios of the air outlets of the indoor unit are different; fig. 5 to 23 are schematic views of an embodiment of an air conditioning indoor unit according to the present invention.
Referring to fig. 1, the indoor unit 100 of the air conditioner includes a casing 1, an indoor unit outlet 11 is disposed on the casing 1, a height of the casing 1 is H, and a length of an opening of the indoor unit outlet 11 is H, wherein H/H is greater than or equal to 0.25 and less than or equal to 0.45.
The utility model provides an among the technical scheme, casing 1's height is H, and casing 1 is seted up to interior machine air outlet 11, and interior machine air outlet 11's opening length is H, and wherein, 0.25 is less than or equal to H/H and is less than or equal to 0.45, through optimizing the indoor set 100 structure of air conditioner, rationally lays interior machine air outlet 11's height size, promotes air-out efficiency, improves the air-out effect, has improved user experience.
It should be noted that the air-conditioning indoor unit 100 has a front panel 15, a rear wall, and two opposite side walls between the front panel 15 and the rear wall, in general, the front panel 15 and the rear wall are respectively located at two opposite sides of the casing 1, the front panel 15 faces a user, the rear wall is arranged against a wall (or a pair of walls), the two opposite side walls are distributed at the left and right sides of the air-conditioning indoor unit 100, and the indoor unit air outlet 11 is usually opened on the front panel 15.
When the front panel 15 of the air conditioning indoor unit 100 is a rectangular panel and the indoor unit air outlet 11 corresponds to a rectangular air outlet, it can be generally understood that the opening length of the indoor unit air outlet 11 is the length of a side of the indoor unit air outlet 11 in the height direction (the up-down direction shown in fig. 1); when the front panel 15 of the air conditioning indoor unit 100 is an arc panel and the indoor unit air outlet 11 corresponds to an arc air outlet, it can be generally understood that a height plane (vertical plane) of the air conditioning indoor unit 100 may be used as a reference plane, and the opening length of the indoor unit air outlet 11 is a projection length of a side length of the indoor unit air outlet 11 in the height direction on the reference plane.
In addition, the internal structure of the indoor unit 100 of the air conditioner is considered comprehensively, and the height ratio (H/H) of the opening length of the indoor unit air outlet 11 to the height of the casing 1 is between 0.25 and 0.45, so that the size of a larger air outlet can be obtained, the air outlet efficiency is improved, the air outlet effect is improved, and the user experience is improved.
The following relation table of motor rotation speed-air volume is obtained through experiments under the condition that the b/W ratio is fixed to be 0.84 and H/H takes different values, in the table, the unit of the motor rotation speed is r/min, and the unit of the air outlet volume is m3Selecting 5 groups of different height ratios, wherein the 5 groups of different height ratios are respectively 0.15, 0.20, 0.30, 0.38 and 0.45, and concretely referring to table 1;
TABLE 1 relationship table of motor rotation speed-air volume
Rotating speed of motor 15％ 20％ 30％ 38％ 45％
500 968 992 1034 1071.29 1104.5
600 1188 1213 1265 1308.07 1346.99
700 1408 1457 1491 1539.57 1568.22
From table 1 above, it is obvious that, on the premise of the same height ratio, the air outlet volume of the indoor unit 100 of the air conditioner increases gradually with the increase of the motor rotation speed, and in addition, on the premise of the same motor rotation speed, the air outlet volume also increases obviously with the increase of the height ratio.
It should be noted that, when the height ratio is 0.15 and the motor rotation speed is 500r/min, the air volume of the air out of the indoor unit air outlet 11 is 968m3H, when the height ratio is 0.45 and the motor rotating speed is 500r/min, the air quantity of the air out of the air outlet 11 of the internal machine is 1104.5m3In conclusion, it can be seen that when the reasonable height dimension of the indoor unit air outlet 11 is reasonably set, the air outlet efficiency of the indoor unit 100 of the air conditioner can be obviously improved, so as to reduce the rotation speed of the motor and reduce the energy consumption.
In addition, referring to fig. 2, fig. 2 is a schematic diagram illustrating a comparison between the motor rotation speed and the air volume of the air conditioning indoor unit in fig. 1 under different height ratios on the premise that the b/W ratio is fixed to 0.84, in the schematic diagram, when 5 groups of different height ratios are selected, a comparison relationship between the motor rotation speed and the air volume of the air conditioning indoor unit 100 is illustrated, and the 5 groups of different height ratios are 0.15, 0.20, 0.30, 0.38, and 0.45, respectively, wherein in the schematic diagram, an abscissa is the rotation speed, and a unit is r/min; the ordinate is the air volume in m3The curve represented by square nodes is a motor rotating speed-air volume curve with the ratio of 0.15; the curve represented by the diamond-shaped nodes is a motor rotating speed-air volume curve with the ratio of 0.20; the curve represented by the triangular node is a motor rotating speed-air volume curve with the ratio of 0.30; the curve represented by the circular node is a motor rotating speed-air volume curve with the ratio of 0.38; the curve represented by the circular node is a motor rotating speed-air volume curve with the ratio of 0.45;
it can be seen from the above curves that, as the rotation speed of the fan in the indoor air-conditioning unit 100 increases, the air outlet volume of the corresponding indoor air-conditioning unit 100 gradually increases and is approximately in a linear relationship, for the indoor air-conditioning units 100 with different ratios, under the condition that the motor rotation speeds (abscissa) are the same, the larger the ratio is, the larger the air outlet volume of the corresponding indoor air-conditioning unit 100 is, that is, taking the same abscissa as a plumb line will generate 5 intersection points with the above 5 curves, and each 1 intersection point will correspond to an air volume value of 1 ordinate, which can be obviously obtained from the figure, the air volume value of the curve corresponding to 0.45 where the height ratio is the largest, that is, the larger the air outlet volume is, and the air outlet efficiency is high, the larger the ratio of the height of the indoor air outlet 11 to the height of the indoor air-conditioning unit 100 is at the same motor rotation speed; certainly, on the premise of obtaining the same air volume (ordinate), that is, on the premise that the same ordinate is used as a horizontal line, 5 intersection points are generated with 5 curves, and each 1 intersection point corresponds to a motor rotation speed value of 1 abscissa, which can be obviously obtained from the figure, the motor rotation speed (abscissa) of the curve corresponding to the ratio of 0.15 is obviously larger, that is, under the same air volume of the indoor air-conditioning unit 100, the larger the ratio of the height of the indoor unit air outlet 11 to the height of the indoor air-conditioning unit 100 is, the smaller the required motor rotation speed is, and the higher the air outlet efficiency is;
in the following, a relation table of motor power-air volume is obtained through experiments under the condition that the b/W ratio is fixed to be 0.84 and H/H takes different values, wherein in the relation table, the unit of the motor power is kw, and the unit of the air outlet volume is m3Selecting 5 groups of different height ratios, wherein the 5 groups of different height ratios are respectively 0.15, 0.20, 0.30, 0.38 and 0.45, and concretely referring to a table 2;
TABLE 2 relationship table of motor power-air volume
Air quantity 15％ 20％ 30％ 38％ 45％
1000 55.5 55.0 52.3 50.7 46.8
1100 71.2 69.6 66.6 64.2 59.2
1200 91.4 88.0 84.7 81.2 74.9
1300 117.3 111.3 107.7 102.7 94.7
1400 150.4 140.7 137.0 129.9 119.9
From the above table 2, it is obvious that, on the premise of the same height ratio, the motor power of the indoor unit 100 of the air conditioner is gradually increased with the increase of the required air outlet volume, but the performance is not obvious below 25%, and in addition, on the premise of the same required air outlet volume, the motor power is also obviously reduced with the gradual increase of the height ratio, so that it is a reasonable choice to select the height ratio of the height of the indoor unit air outlet 11 to the height of the casing 1 between 0.25 and 0.45.
In addition, when the height ratio is 0.30, the required outlet air volume is 1000m3When the height ratio is 0.45, the required air outlet volume is 1100m3In the case of/h, the power of the motor is 59.2kw, and in conclusion, when the reasonable height size of the indoor unit air outlet 11 is reasonably set, the air outlet efficiency of the indoor unit 100 of the air conditioner can be obviously improved, so that the rotating speed of the motor is reduced, and the energy consumption is low.
Referring to fig. 3, fig. 3 is a schematic diagram illustrating a comparison between a motor rotation speed and an air volume of the air conditioning indoor unit 100 under different ratios of the outlet air heights of the indoor unit on the premise that the b/W ratio is fixed to 0.84, in the comparison schematic diagram, when 5 different ratios are selected, the comparison between the motor rotation speed and the air volume of the air conditioning indoor unit 100 is that the 5 different ratios are 0.15, 0.20, 0.30, 0.38, and 0.45, respectively, where the abscissa is the air volume and the unit is m3H; the ordinate is power, the unit is kw, and a curve represented by square nodes is a motor power-air volume curve with the ratio of 0.15; the curve represented by the diamond-shaped nodes is a motor power-air volume curve with the ratio of 0.20; the curve represented by the triangular node is a motor power-air volume curve with the ratio of 0.30; the curve represented by the circular node is a motor power-air volume curve with the ratio of 0.38; the curve represented by the circular node is a motor power-air volume curve with the ratio of 0.45;
as can be seen from the above curves, as the air volume in the indoor air-conditioning unit 100 increases, the power of the motor of the corresponding indoor air-conditioning unit 100 gradually increases, for the indoor air-conditioning units 100 with different height ratios, under the condition that the air volume (abscissa) is the same, the larger the ratio is, the smaller the power of the motor of the corresponding indoor air-conditioning unit 100 is, that is, taking the same abscissa as a plumb line can generate 5 intersection points with the above 5 curves, each 1 intersection point can correspond to a motor power value of 1 ordinate, which can be obviously obtained from the figure, the motor power of the curve corresponding to 0.45 with the largest ratio is the smallest, that is, under the same air volume of the indoor air-conditioning unit 100, the larger the ratio between the height of the indoor unit air outlet 11 and the height of the indoor air-conditioning unit 100 is, the larger the air volume is, the smaller the motor power is, and the higher the air volume is; certainly, on the premise that the motor powers (vertical coordinates) are the same, that is, on the premise that the same vertical coordinate is used as a horizontal line, 5 intersection points are generated with 5 curves, and each 1 intersection point corresponds to an air volume value of 1 horizontal coordinate, which can be obviously obtained from the figure, the air volume (horizontal coordinate) of the curve corresponding to the ratio of 0.45 is obviously smaller, that is, the air volume of the air-conditioning indoor unit 100 is higher when the ratio of the height of the indoor unit air outlet 11 to the height of the air-conditioning indoor unit 100 is higher, and the air volume of the air is higher, so that the air-conditioning efficiency is high.
Considering the height of the indoor unit air outlet 11 of the indoor unit 100 of the air conditioner and the width of the indoor unit air outlet 11 of the indoor unit 100 of the air conditioner, in one embodiment, the width of the casing 1 is W, correspondingly, the opening width of the indoor unit air outlet 11 is b, and b/W is greater than or equal to 0.70 and less than or equal to 0.95, by optimizing the structure of the indoor unit 100 of the air conditioner, the width of the indoor unit air outlet 11 is reasonably arranged, the air outlet efficiency is improved, the air outlet effect is improved, and the user experience is improved.
When the front panel 15 of the air conditioning indoor unit 100 is a rectangular panel and the indoor unit air outlet 11 corresponds to a rectangular air outlet, it can be generally understood that the opening width of the indoor unit air outlet 11 is the length of a side of the indoor unit air outlet 11 in the width direction (e.g., the left-right direction in fig. 1); when the front panel 15 of the air conditioning indoor unit 100 is an arc panel and the indoor unit air outlet 11 corresponds to the arc air outlet, it can be generally understood that a height plane (vertical plane) of the air conditioning indoor unit 100 may be used as a reference plane, and an opening width of the indoor unit air outlet 11 is a projection length of a side length in a width direction of the indoor unit air outlet 11 on the reference plane.
In addition, the internal structure of the indoor unit 100 of the air conditioner is considered comprehensively, the ratio of the opening width of the indoor unit air outlet 11 to the width of the casing 1 is between 0.25 and 0.45, the size of a larger air outlet can be obtained, the air outlet efficiency is improved, the air outlet effect is improved, and the user experience is improved.
The following relation table of motor rotating speed-air volume is obtained through experiments under the condition that the H/H ratio is fixed to be 0.3 and b/W is different in value, in the table, the unit of the motor rotating speed is r/min, and the unit of the air outlet volume is m3Selecting 3 groups of different width ratios, wherein the 3 groups of different width ratios are respectively 0.80, 0.85 and 0.90, and concretely referring to a table 3;
TABLE 3 relationship table of motor rotation speed-air volume
Rotating speed of motor 80％ 85％ 90％
500 998 1037 1079
600 1218 1268 1315
700 1446 1493 1533
From foretell table 3, obviously can see out, under the prerequisite of the same width ratio, along with increasing of motor speed, the air-out amount of wind crescent of indoor set 100 of air conditioner, in addition, under the prerequisite of the same motor speed, along with the crescent of width ratio, the air-out amount also obviously increases, to sum up can see out, when the reasonable width size of rationally setting up indoor set air outlet 11, can improve the air-out efficiency of indoor set 100 of air conditioner very obviously to reduce the rotational speed of motor, less energy consumption.
In addition, please refer to fig. 4, fig. 4 is a schematic diagram illustrating a comparison between the power of the motor and the air volume at different width ratios on the premise that the H/H ratio is fixed to 0.3, in the schematic diagram, when 3 groups of different width ratios are selected, a comparison relationship between the motor rotation speed and the air volume of the indoor unit 100 of the air conditioner is set, and the 3 groups of different width ratios are 0.80, 0.85, and 0.90, respectively, wherein in the schematic diagram, the abscissa is the rotation speed, and the unit is r/min; the ordinate is the air volume in m3The curve positioned on the upper side is a motor rotating speed-air volume curve with the width ratio of 0.90; the curve in the middle is a motor rotating speed-air volume curve with the width ratio of 0.85; the curve at the lower side is a motor rotation speed-air volume curve with a width ratio of 0.80.
It can be seen from the above curves that, as the rotation speed of the fan in the indoor air-conditioning unit 100 increases, the air outlet volume of the corresponding indoor air-conditioning unit 100 gradually increases and is approximately in a linear relationship, for the indoor air-conditioning units 100 with different width ratios, under the condition that the motor rotation speeds (abscissa) are the same, the larger the width ratio is, the larger the air outlet volume of the corresponding indoor air-conditioning unit 100 is, that is, 3 intersection points are generated with the 3 curves by taking the same abscissa as a plumb line, and each 1 intersection point corresponds to an air volume value of 1 ordinate, which can be obviously obtained from the figure, the air volume value of the curve corresponding to 0.90 where the width ratio is the largest, that is, the larger the ratio of the width of the indoor unit air outlet 11 to the width of the indoor air-conditioning unit 100 is, the larger the air outlet volume is, and the air outlet efficiency is high; certainly, on the premise of obtaining the same air volume (ordinate), that is, on the premise that the same ordinate is used as a horizontal line, 3 intersection points are generated with 3 curves, and each 1 intersection point corresponds to a motor rotation speed value of 1 abscissa, which can be obviously obtained from the figure, the motor rotation speed (abscissa) of the curve corresponding to the ratio of 0.80 is obviously larger, that is, under the same air volume of the indoor air conditioner 100, the larger the ratio of the width of the indoor unit air outlet 11 to the width of the indoor air conditioner 100 is, the smaller the required motor rotation speed is, and the higher the air outlet efficiency is.
It should be noted that, on the premise of satisfying the requirement of reasonably laying the internal structure of the indoor unit 100 of the air conditioner, the ratio of the effective air outlet area of the larger indoor unit air outlet 11 to the area of the indoor unit 100 of the air conditioner can be selected, and through the optimization of the structure and the air duct, the size of the air outlet of the indoor cabinet air conditioner is enlarged, so that the user visually feels that the air outlet of the air conditioner is wider and the air volume is larger, so that the air conditioner can send the processed hot and cold air at a lower air speed under the condition of the same air volume as the existing product, so that the air supply is softer, and the air conditioner can send the needed hot and cold air at a larger air volume under the condition of the same power consumption as the existing product, thereby improving the energy consumption of the product.
In addition, it should be noted that the inner-machine air outlet 11 may be configured to have an irregular shape, such as a polygon, a circle, or a semicircle, and certainly, may also be configured to have a regular shape, such as a rectangle, a square, and the like, when the inner-machine air outlet is configured to have a regular shape, a projection area of the inner-machine air outlet 11 on the reference plane is also or approximately configured to have a regular shape, at this time, when an effective area of the inner-machine air outlet 11 is calculated, a product form of a height and a width may be presented, for example, in order to obtain a better air outlet cross section, a height of the inner-machine air outlet 11 may be increased, a width of the inner-machine air outlet 11 may also be increased, and a height and a width of the inner-machine air outlet 11 may also be increased at the same time.
If the effective air outlet portion of the inner machine air outlet 11 cannot form effective air outlet, for example, the effective air outlet portion of the inner machine air outlet 11 only plays a decorative role or is closed or partially closed in a special occasion, in an embodiment, the height of the effective air outlet portion of the inner machine air outlet 11 is H1, the opening width of the effective air outlet portion of the inner machine air outlet 11 is b1, wherein H1 is equal to or less than H, H1/H is equal to or more than 0.25 and less than or equal to 0.45, b1 is equal to or less than b, and b1/W is equal to or more than 0.70 and less than or equal to 0.95.
In order to cooperate with the larger indoor unit air outlet 11, in the embodiment of the present invention, other structures of the indoor unit 100 of the air conditioner are optimized, specifically, please refer to fig. 5 to 23, wherein, fig. 5 to 14 are the present invention provides a schematic three-dimensional structure diagram of the first embodiment of the indoor unit 100 of the air conditioner, and fig. 15 to 23 are the present invention provides a schematic three-dimensional structure diagram of the second embodiment of the indoor unit 100 of the air conditioner.
The utility model discloses in, casing 1 still is equipped with interior machine air intake 12, is formed with the casing wind channel 13 that communicates interior machine air intake 12 and interior machine air outlet 11 in the casing 1, is equipped with the fan in the casing wind channel 13, the utility model discloses do not restrict setting position of interior machine air intake 12, if, can be the back wall of casing 1, perhaps the lateral wall, of course, still can set up interior machine air intake 12 on the back wall of casing 1 and the lateral wall simultaneously, it is all above the utility model discloses a protection scope.
The utility model discloses do not restrict the type of fan, for example, can be axial fan, centrifugal fan, cross-flow fan etc. do not restrict the setting number of interior machine air intake 12 yet, for example, can be one, can be two, also can be three, in order to be applied to the use occasion of the big amount of wind of machine 100 in the air conditioning, in some embodiments, the fan of choosing is the double suction formula fan, double suction formula centrifugal fan 2 can be two air intakes have, an air outlet can increase the intake, and obtain great air output.
Only consider the embodiment that sets up an interior machine air intake 12 on casing 1, be the utility model provides a first embodiment of air conditioning indoor unit 100, please refer to fig. 5-10, set up the fan as double suction type centrifugal fan 2, double suction type centrifugal fan 2 includes fan casing 21, be formed with fan wind channel 211 in fan casing 21, fan wind channel 211 has two fan air intakes 212 that correspond to both ends that form in the axial of fan casing 21, and forms fan air outlet 213 at the lateral part of fan casing 21, fan air outlet 213 is linked together with interior machine air outlet 11, two fan air intakes 212 all are linked together with interior machine air intake 12.
In the technical scheme provided by the utility model, the casing 1 is provided with the inner machine air outlet 11 and the inner machine air inlet 12, the casing air duct 13 is formed between the inner machine air inlet 12 and the inner machine air outlet 11, the double-suction centrifugal fan 2 is arranged in the casing air duct 13, the fan air duct 211 of the double-suction centrifugal fan 2 is provided with two fan air inlets 212 and a fan air outlet 213, the fan air outlet 213 is communicated with the inner machine air outlet 11, the two fan air inlets 212 are communicated with the inner machine air inlet 12, the external air flow enters the casing air duct 13 through the inner machine air inlet 12, one part enters the double-suction centrifugal fan 2 from one fan air inlet 212, the other part enters the double-suction centrifugal fan 2 from the other fan air inlet 212, and is discharged to the inner machine air outlet 11 through the pressurization of the double-suction centrifugal fan 2, the air intake of the air-conditioning indoor machine 100 is increased, and the large air volume requirement of the air-conditioning indoor machine 100 is satisfied, the power consumption of the indoor unit 100 of the air conditioner is reduced, and the user experience is improved.
Under the mode that satisfies the big air volume demand of indoor set 100 of air conditioning, can locate (set up in/form at) the front panel 15 or the lateral wall of casing 1 with indoor set air outlet 11, in some embodiments, indoor set air outlet 11 locates the front panel 15 of casing 1, and indoor set air intake 12 locates the back wall or the lateral wall of casing 1, and wherein, a fan air intake 212 corresponds indoor set air intake 12 setting, and another fan air intake 212 is linked together with indoor set air intake 12 through intercommunication runner 3, and indoor set 100 of air conditioning is from the back wall air inlet, goes out the air from front panel 15, and the noise is reduced, has further improved user experience.
With reference to fig. 11 to 14, the communication flow channel 3 connects the fan air inlet 212 to the indoor unit air inlet 12, and the technical solution of the present invention does not limit the forming position, structural form, cross-sectional shape, etc. of the communication flow channel 3 (refer to the detailed description of the second embodiment of the indoor unit 100 of the subsequent air conditioner), and the technical solution of the present invention does not limit the specific structure of the double-suction centrifugal fan 2 (refer to the detailed description of the second embodiment of the indoor unit 100 of the subsequent air conditioner).
The indoor unit 100 of the air conditioner further comprises an indoor heat exchanger 4, the indoor heat exchanger 4 is used for radiating cold or heat in the air conditioner to the indoor, when the air conditioner is in a refrigeration mode, a low-temperature and low-pressure refrigerant passing through a restrictor in the air conditioner flows through the indoor heat exchanger 4 to exchange heat with air flow in the shell air duct 13, and the cold is fully released into the shell air duct 13, so that relatively cold air is blown to the indoor to realize refrigeration; when the air conditioner is in a heating mode, a high-temperature and high-pressure refrigerant passing through a compressor in the air conditioner flows through the indoor heat exchanger 4 to exchange heat with air flow in the shell air duct 13, and heat is fully released into the shell air duct 13, so that hotter air is blown to the indoor space, and heating is achieved.
In the embodiment of the present invention, the specific installation position of the indoor heat exchanger 4 is not limited, for example, the indoor heat exchanger 4 may be disposed at a position adjacent to the indoor unit air outlet 11, or at a position adjacent to the indoor unit air inlet 12, please refer to fig. 11 to 14, in the embodiment that only one indoor unit air inlet 12 is disposed on the casing 1, the indoor heat exchanger 4 is disposed at the casing air duct 13 and is disposed adjacent to the indoor unit air inlet 12, after heat exchange is performed by the indoor heat exchanger 4, the airflow flows through the indoor heat exchanger 4 to make the airflow more uniform, thereby reducing the power consumption of the indoor unit 100 of the air conditioner, and it should be noted that, in order to improve the uniformity of the airflow entering the casing air duct 13, the airflow entering the casing air duct 13 needs to pass through all the indoor heat exchangers 4, including the airflow directly entering the opposite fan air inlet 212 from the indoor unit air inlet 12, or the airflow entering the other fan air inlet 212 through the communication flow passage 3, the heat exchange area of the indoor heat exchanger 4 needs to be set large.
In addition, the arrangement positions of the indoor heat exchanger 4 and the double-suction centrifugal fan 2 also need to be limited, in an embodiment, referring to fig. 12, the double-suction centrifugal fan 2 further includes a centrifugal wind wheel 22 rotatably mounted on the fan air duct 211, the rotation axis of the centrifugal wind wheel 22 is arranged corresponding to the middle position of the indoor heat exchanger 4, so as to facilitate air flow suction, and along the radial direction of the centrifugal wind wheel 22, the deviation size between the rotation axis of the centrifugal wind wheel 22 and the center of the indoor heat exchanger 4 is L, and L is greater than or equal to 0mm and less than or equal to 150 mm.
It should be noted that the coincidence of the rotation axis of the centrifugal wind wheel 22 and the center of the indoor heat exchanger 4 is that the middle strong wind area of the centrifugal wind wheel 22 directly corresponds to the center of the indoor heat exchanger 4, so that the air flow entering the double-suction centrifugal fan 2 fully exchanges heat through indoor heat exchange, and the heat exchange efficiency is improved.
The indoor unit 100 of the air conditioner further includes a heating unit, it should be noted that the heating unit may be a single structure, or may be integrated with the indoor heat exchanger 4 into a whole structure, in the embodiment where the heating element may be a single structure (refer to the following detailed description of the second embodiment of the indoor unit 100), the heating element is disposed in the casing duct 13, and is positioned between the double-suction centrifugal fan 2 and the indoor heat exchanger 4, is suitable for occasions needing electric auxiliary heat, in the embodiment that the heating component and the indoor heat exchanger 4 are integrated, the indoor heat exchanger 4 is arranged in the casing air duct 13 and is arranged adjacent to the indoor unit air inlet 12, the indoor heat exchanger 4 comprises an indoor heat exchanger 4 body and a heating structure, and the heating structure is arranged on one side of the indoor heat exchanger 4 body close to the double-suction centrifugal fan 2, so that the structure is simplified.
When considering the embodiment in which two or more indoor unit air inlets 12 are disposed on the casing 1, please refer to fig. 15 to 23, and fig. 15 to 23 are schematic perspective views of a second embodiment of the indoor unit 100 of the air conditioner according to the present invention, and all the following embodiments are described with reference to the second embodiment of the indoor unit 100 of the air conditioner according to the present invention.
Referring to fig. 15 to 19, an air conditioning indoor unit 100 includes a casing 1 and a double-suction centrifugal fan 2, the casing 1 is provided with an inner unit air outlet 11, and a front inner unit air inlet 12a and a rear inner unit air inlet 12b distributed in a front-rear direction, both the front inner unit air inlet 12a and the rear inner unit air inlet 12b are communicated with the inner unit air outlet 11 through a casing air duct 13, the double-suction centrifugal fan 2 is disposed in the casing air duct 13, the double-suction centrifugal fan 2 includes a fan casing 21, a fan air duct 211 is formed in the fan casing 21, the fan air duct 211 has two fan air inlets 212 correspondingly formed at both ends of the fan casing 21 in an axial direction and a fan air outlet 213 formed at a side of the fan casing 21, the fan air outlet 213 is communicated with the inner unit air outlet 11, both the fan air inlets 212 are communicated with the front inner unit air inlet 12a, both the fan air inlets 212 are also communicated with the rear inner unit air inlet 12b, wherein at least one of the front and rear inner-machine air inlets 12a and 12b communicates with the outside of the cabinet 1.
When only the front inner machine air inlet 12a is open, it can be understood that: the casing 1 is provided with a rear baffle at the rear inner machine air inlet 12b, and the rear baffle can separate the rear inner machine air inlet 12b from communicating with the outside of the casing 1, wherein the rear baffle is detachably (for example, screwed, clamped or magnetically connected) arranged on the casing 1 and located at the rear inner machine air inlet 12 b. Of course, in some embodiments, the tailgate may be replaced with a switching door or valve member.
When only the rear inner machine intake vent 12b is open, it can be understood that: the casing 1 is provided with a front baffle at the front inner machine air inlet 12a, the front baffle can separate the front inner machine air inlet 12a from being communicated with the outside of the casing 1, wherein the front baffle is detachably (for example, in a screw connection, a clamping connection or a magnetic connection) arranged on the casing 1 and located at the front inner machine air inlet 12 a. Of course, in some embodiments, the front baffle may be replaced with a switch door or a valve member.
In the technical solution provided by the present invention, an inner machine air outlet 11, a front inner machine air inlet 12a and a rear inner machine air inlet 12b distributed in the front-back direction are disposed on a casing 1, a fan air duct 211 of a double-suction centrifugal fan 2 has two fan air inlets 212 formed at both ends of a fan housing 21 in the axial direction and a fan air outlet 213 formed at a side portion of the fan housing 21, the fan air outlet 213 is communicated with the inner machine air outlet 11, the two fan air inlets 212 are both communicated with the front inner machine air inlet 12a, the two fan air inlets 212 are also both communicated with the rear inner machine air inlet 12b, at least one of the front inner machine air inlet 12a and the rear inner machine air inlet 12b can be selected to be opened, so that the air conditioning indoor machine 100 has different air inlet modes, in the above different air inlet modes, external air flows enter the casing air duct 13, and a part of the air flows into the double-suction centrifugal fan 2 from one fan air inlet 212, the other part enters the double-suction centrifugal fan 2 from the other fan air inlet 212 and is blown to the inner fan air outlet 11 to be discharged through pressurization of the double-suction centrifugal fan 2, so that different performance requirements of the air conditioner are met on the basis of meeting the requirement of large air volume of the indoor unit 100 of the air conditioner and reducing the power consumption of the indoor unit 100 of the air conditioner, and the user experience is improved.
It should be noted that different air inlet modes are selected, different air flow paths exist, when only the front inner machine air inlet 12a is selected to be opened, for the front inner machine air inlet 12a, at this time, the front baffle needs to be detached from the casing 1, so that the front inner machine air inlet 12a is communicated with the outside of the casing 1, of course, the front baffle can also be moved from the blocking position on the casing 1 to the avoiding position, so as to open the front inner machine air inlet 12a, and when the front baffle is replaced by a switch door or a valve piece, the opening of the front inner machine air inlet 12a can be realized only by rotating the switch piece or the valve core in the switch door; for the rear inner machine air inlet 12b, namely, the rear baffle is needed to separate the rear inner machine air inlet 12b from the outside of the casing 1, for example, the rear baffle can be installed at the rear inner machine air inlet 12b on the casing 1 to block the rear inner machine air inlet 12b, or the rear baffle can be moved from an avoiding position on the casing 1 to a blocking position of the blocked rear inner machine air inlet 12b, when the rear baffle is replaced by a switch door or a valve, the rear inner machine air inlet 12b can be closed only by rotating the switch piece or the valve core in the switch door.
When only the rear inner machine air inlet 12b is selected to be opened, for the rear inner machine air inlet 12b, the rear baffle needs to be detached from the casing 1 at this time so that the rear inner machine air inlet 12b is communicated with the outside of the casing 1, of course, the rear baffle can also be moved from a blocking position on the casing 1 to an avoiding position so as to open the rear inner machine air inlet 12b, and when the rear baffle is replaced by a switch door or a valve piece, the opening of the rear inner machine air inlet 12b can be realized only by rotating a switch piece or a valve core in the switch door at this time; for the front inner machine air inlet 12a, namely, at this time, the front baffle needs to be adopted to separate the front inner machine air inlet 12a from being communicated with the outside of the casing 1, for example, the front baffle can be installed at the front inner machine air inlet 12a on the casing 1 to block the front inner machine air inlet 12a, or the front baffle can be moved from an avoidance position on the casing 1 to a blocking position for blocking the front inner machine air inlet 12a, when the front baffle is replaced by a switch door or a valve piece, the front inner machine air inlet 12a can be closed only by rotating the switch piece or the valve core in the switch door.
When the front inner machine air inlet 12a and the rear inner machine air inlet 12b are selected to be opened simultaneously, for the rear inner machine air inlet 12b, the rear baffle needs to be detached from the casing 1 at this time, so that the rear inner machine air inlet 12b is communicated with the outside of the casing 1, of course, the rear baffle can also be moved from a blocking position on the casing 1 to an avoiding position to open the rear inner machine air inlet 12b, and when the rear baffle is replaced by a switch door or a valve, the opening of the rear inner machine air inlet 12b can be realized only by rotating the switch piece or the valve core in the switch door at this time; for the front inner machine air inlet 12a, at this time, the front baffle needs to be detached from the casing 1, so that the front inner machine air inlet 12a is communicated with the outside of the casing 1, of course, the front baffle can also be moved from the blocking position on the casing 1 to the avoiding position, so as to open the front inner machine air inlet 12a, when the front baffle is replaced by a switch door or a valve piece, the opening of the front inner machine air inlet 12a can be realized only by rotating the switch piece or the valve core in the switch door.
Specifically, when only the front inner machine air inlet 12a is selected to be opened, the external air flow enters the casing air duct 13 through the front inner machine air inlet 12a, one part of the external air flow enters the double-suction centrifugal fan 2 from one fan air inlet 212, the other part of the external air flow enters the double-suction centrifugal fan 2 from the other fan air inlet 212, and the external air flow is blown to the inner machine air outlet 11 and is discharged into the air inlet of the double-suction centrifugal fan 2 through pressurization of the double-suction centrifugal fan 2, so that air enters from two ends of the double-suction centrifugal fan 2, and the air-conditioning indoor machine 100 can obtain a larger air inlet amount; when only the rear inner machine air inlet 12b is selected to be opened, external air flow enters the shell air duct 13 through the rear inner machine air inlet 12b, one part of the external air flow enters the double-suction centrifugal fan 2 from one fan air inlet 212, the other part of the external air flow enters the double-suction centrifugal fan 2 from the other fan air inlet 212, the external air flow is blown to the inner machine air outlet 11 and is discharged through pressurization of the double-suction centrifugal fan 2, and similarly, air enters from two ends of the double-suction centrifugal fan 2, and the air-conditioning indoor machine 100 has larger air inlet amount; when the front inner machine air inlet 12a and the rear inner machine air inlet 12b are selected to be opened simultaneously, external air flow can enter the shell air duct 13 through the front inner machine air inlet 12a and the rear inner machine air inlet 12b simultaneously, one part of the external air flow enters the double-suction centrifugal fan 2 from one fan air inlet 212, the other part of the external air flow enters the double-suction centrifugal fan 2 from the other fan air inlet 212, and the external air flow is blown to the inner machine air outlet 11 to be exhausted through pressurization of the double-suction centrifugal fan 2, at the moment, air enters from two ends of the double-suction centrifugal fan 2, the air-conditioning indoor machine 100 also has larger air inlet quantity, when the air inlet mode is adopted, the front inner machine air inlet 12a can directly correspond to one fan air inlet 212, and the rear inner machine air inlet 12b can also directly correspond to the other fan air inlet 212, so that the path of the air flow can be reduced, the wind resistance is further reduced, and the air-conditioning indoor machine 100 obtains larger air inlet quantity, no matter which air inlet mode is adopted, the large air volume requirement of the indoor air conditioner unit 100 is met, the power consumption of the indoor air conditioner unit 100 is reduced, the user experience is improved, and the air inlet mode has a good effect.
The air conditioner indoor unit 100 can be installed in the installation hole directly, or the indoor air conditioner can be hung and installed in the installation hole, and the like, specifically, considering that the space occupying the room is reduced as much as possible, the air conditioner indoor unit 100 needs to be installed in the position close to the wall, the wall is close to the rear wall of the air conditioner indoor unit 100, the air inlet of the air inlet arranged on the rear wall of the air conditioner indoor unit 100 is influenced, in order to obtain large air volume, the rear indoor unit air inlet 12b can be selected to be closed, only starting an air inlet mode of the front inner machine air inlet 12 a; when the air-conditioning indoor unit 100 needs to be installed in the installation hole, the side wall of the hole is close to the inner side wall of the air-conditioning indoor unit 100, the air inlet of the air inlet arranged on the side wall of the air-conditioning indoor unit 100 is affected at this time, the front indoor unit air inlet 12a (generally arranged on the side wall of the air-conditioning indoor unit 100, and will be described in detail later) is affected at this time, in order to obtain large air volume, the front indoor unit air inlet 12a can be selectively closed, and only the air inlet mode of the rear indoor unit air inlet 12b is selected to be opened; when the installation position of the indoor unit 100 of the air conditioner is not limited too much, such as when a large space exists indoors, at this time, when the indoor unit 100 of the air conditioner does not have a large limitation requirement on the installation position, the air inlet mode of simultaneously opening the front indoor unit air inlet 12a and the rear indoor unit air inlet 12b can be selected, air can simultaneously enter from the front indoor unit air inlet 12a and the rear indoor unit air inlet 12b, so that a large air volume can be obtained, different installation requirements are met, the application range of the indoor unit 100 of the air conditioner is expanded, and a good effect is achieved.
Different performance requirements, for example, the requirements may also be appearance requirements, when a user requires that the front-view appearance of the indoor air-conditioning unit 100 is good, the user may select to only open the rear indoor unit air inlet 12b and close the front indoor unit air inlet 12a to reduce the opening at the front end of the indoor air-conditioning unit 100, so that the front side of the indoor air-conditioning unit 100 has good consistency and obtains good appearance; when the user is not too high to the appearance demand, can choose to only open preceding indoor unit air intake 12a or open preceding indoor unit air intake 12a and back indoor unit air intake 12b simultaneously, at this moment, weaken the appearance demand, and satisfied the demand occasion of bigger amount of wind, have better effect.
In a mode of meeting the requirement of the air conditioner indoor unit 100 for large air volume, the indoor unit air outlet 11 may be disposed (disposed/formed) on the front panel 15 or the side wall of the casing 1, the front indoor unit air outlet 11 may be disposed (disposed/formed) on the front panel 15 or the side wall of the casing 1, and the rear indoor unit air inlet 12b may be disposed (disposed/formed) on the side wall or the rear wall of the casing 1, in an embodiment, the indoor unit air outlet 11 is disposed on the front panel 15 of the casing 1, the front indoor unit air inlet 12a is disposed on at least one side wall of the casing 1, and the rear indoor unit air inlet 12b is disposed on the rear wall of the casing 1.
Of course, the front inner machine air inlet 12a and the rear inner machine air inlet 12b can be arranged on the same side wall in the front-back direction, that is, the front inner machine air inlet 12a and the rear inner machine air inlet 12b are formed on one side plate of the casing 1 at the same time, only one side plate needs to be machined, the machining is convenient and fast, and the casing 1 is formed by assembling after the machining is completed; the front inner machine air inlet 12a and the rear inner machine air inlet 12b are formed on the two side walls respectively, so that the two side plates can be conveniently processed respectively, and the machine shell 1 can be formed by assembling after the processing is finished.
In the technical scheme of the utility model, do not restrict the number of internal unit air intake 12, if can set up two, can also set up three, when internal unit air intake 12 sets up two, set up a preceding internal unit air intake 12a and a back internal unit air intake 12b respectively promptly, at this moment, can set up preceding internal unit air intake 12a in the arbitrary lateral wall of casing 1, back internal unit air intake 12b sets up in the back wall of casing 1, also can all set up preceding internal unit air intake 12a and back internal unit air intake 12b in the lateral wall of casing 1, can be the same lateral wall, also can be two different lateral walls of branch establishment; when the internal unit air intake 12 sets up threely, set up two preceding internal unit air intakes 12a and a back internal unit air intake 12b respectively promptly, if, can set up two preceding internal unit air intakes 12a on two lateral walls of casing 1, back internal unit air intake 12b sets up on the back wall of casing 1, can also be can be with two preceding internal unit air intakes 12a setting on the same lateral wall of casing 1, back internal unit air intake 12b sets up on the back wall of casing 1, above embodiment is the embodiment of the utility model discloses an it is.
The back wall of casing 1 is located to back inner machine air intake 12b, in the embodiment of the lateral wall of casing 1 is located to preceding inner machine air intake 12a, a fan air intake 212 corresponds the setting of preceding inner machine air intake 12a, and through 3 intercommunication back inner machine air intakes 12b of intercommunication runner, another fan air intake 212 corresponds the setting of back inner machine air intake 12b, and accessible intercommunication runner 3 intercommunication front inner machine air intake 12a, air conditioning indoor unit 100 is from back wall and lateral wall air inlet, from panel 15 air-out in the front, the noise has been reduced, user experience has further been improved, and the air conditioner has a better effect.
It should be noted that, define 3 first intercommunication runners 3 of intercommunication runner of a fan air intake 212 and preceding inner machine air intake 12a and back inner machine air intake 12b intercommunication, 3 second intercommunication runners 3 of intercommunication runner of another fan air intake 212 and preceding inner machine air intake 12a and back inner machine air intake 12b intercommunication, first intercommunication runner 3 can be same intercommunication runner 3 with second intercommunication runner 3, also can be different runners, and the formation position of first intercommunication runner 3 and second intercommunication runner 3, cross sectional shape also can be with the formation position of second intercommunication runner 3, all set up inequality of cross sectional shape, all belong to above the embodiment of the utility model, for the shaping of convenience of structure, only describe for same intercommunication runner 3 with first intercommunication runner 3 and second intercommunication runner 3 below.
Referring to fig. 18 to 23, the communication flow channel 3 connects the two fan air inlets 212 with the front inner machine air inlet 12a, and the communication flow channel 3 also connects the two fan air inlets 212 with the rear inner machine air inlet 12b, in the technical solution of the present invention, the forming position of the communication flow channel 3 is not limited, for example, the communication flow channel 3 can be arranged in the inner sidewall of the casing air channel 13 inside the casing air channel 13 and outside the casing air channel 13, and when the casing air channel 13 is outside, the communication flow channel 3 is arranged in the casing air channel 13, in one embodiment, the communication flow channel 3 is arranged in the casing air channel 13 and is formed on the double-suction centrifugal fan 2 and/or between the double-suction centrifugal fan 2 and the inner wall of the casing air channel 13, the communication flow channel 3 can be arranged in the casing air channel 13, only the structure in the casing air channel 13 needs to be arranged, and does not need to be arranged separately, the structure can be simplified, in addition, the communication flow channel 3 can be formed on the double-suction centrifugal fan 2, or between the double-suction centrifugal fan 2 and the inner wall of the casing air duct 13, or both on the double-suction centrifugal fan 2 and between the double-suction centrifugal fan 2 and the inner wall of the casing air duct 13, it should be noted that, both on the double-suction centrifugal fan 2 and between the double-suction centrifugal fan 2 and the inner wall of the casing air duct 13, the other fan air inlet 212 can obtain more air inlet volume, and a better effect is achieved.
The technical scheme of the utility model, also do not restrict the structural style of intercommunication runner 3, if, can be the form that sets up to the hole, also can be the form of the runner of injecing between two structures, in an embodiment, fan casing 21 goes up to run through and is equipped with along its axially extended intercommunicating pore 3a, and intercommunication runner 3 includes intercommunicating pore 3a, through the form that sets up intercommunicating pore 3a, simple structure, the shaping of being convenient for.
The utility model discloses in also not restrict the position that sets up of intercommunicating pore 3a, for example, can be in fan casing 21 any one position in week, in an embodiment, fan casing 21 includes spiral case 214 and locates spiral tongue 215 on spiral case 214, spiral case 214 and spiral tongue 215 are injectd out fan wind channel 211 jointly, the extension route of intercommunicating pore 3a is located one side of spiral tongue 215, it is great corresponding to the interval of the side of spiral tongue 215, can be convenient for set up intercommunicating pore 3a of great area, with the air inlet amount of wind of another fan air intake 212 of increase.
Of course, the present invention does not limit the specific forming method of the communication hole 3a, for example, the present invention may be a mechanical processing forming method, or a welding reservation forming method when forming the spiral case 214 and the spiral tongue 215, or a casting forming method when directly casting the communication hole 3 a.
In another embodiment, the lower end of the fan housing 21 is located above the bottom wall of the housing air duct 13, so that a communication gap 3b is formed between the lower end of the fan housing 21 and the bottom wall of the housing air duct 13, and the communication flow channel 3 includes the communication gap 3b, so that the communication gap 3b can be formed by adjusting the installation position of the fan housing 21, and the installation is convenient.
In addition, the communication hole 3a and the communication gap 3b can be arranged independently or simultaneously, and when the communication hole 3a and the communication gap 3b are arranged simultaneously, the double-suction centrifugal fan 2 can obtain larger air intake and has better effect.
It should be noted that, in the embodiment of the present invention, the specific cross-sectional shape of the communication hole 3a is not limited, please refer to fig. 21, for example, the communication hole 3a may be a circular hole, a square hole, or an irregular hole, and may be set to be similar to a triangle according to the shapes of the volute 214 and the volute tongue 215, and of course, the specific wall thickness of the communication hole 3a may not be all set to be uniform and equal, and may be set to be thick locally, and may be set to be thin locally, for example, a form with a thick middle and thin two ends is adopted.
In addition, in the embodiment of the present invention, the specific cross-sectional shape of the communicating gap 3b is not limited, please refer to fig. 21, for example, it may be circular, square or other shapes, the specific shape of the communicating gap 3b is determined by the specific shape defined between the lower end of the fan housing 21 and the bottom wall of the housing air duct 13, of course, the specific wall thickness of the communicating gap 3b is not necessarily all set to be uniform and equal thickness, and may be locally set to be thicker, and locally set to be thinner, for example, the form that the middle is thicker and the two ends are thinner is adopted, or the form that the middle is thinner and the two ends are thicker is adopted.
Considering the arrangement form of the two fan air inlets 212 and the arrangement position of the inner machine air inlet 12, the double-suction centrifugal fan 2 needs to be optimally designed to meet the air inlet requirement of the whole large air volume, in one embodiment, the two wind wheel sections of the centrifugal wind wheel 22 along the axial direction are set to have unequal lengths, specific length differences and proportions, such as 3:2, 4:5, 6:7, 6:8, 7:9 and the like, can be adjusted according to the actual size of the inner machine air inlet 12 and the corresponding position relationship between the fan air inlet 212 and the front inner machine air inlet 12a and the rear inner machine air inlet 12b, reasonably allocate the lengths of the two wind wheel sections, and can obtain large air volume.
It should be noted that, two wind wheel sections may be provided with two wind wheels, and then combined into a whole, or may be a whole wind wheel, an isolation structure is provided in the wind wheel to separate into two wind wheel sections, in one embodiment, a middle partition 23 is provided in the centrifugal wind wheel 22, and the two wind wheel sections are formed on two opposite sides of the middle partition 23.
The rotation of the centrifugal wind wheel 22 is driven by a motor, the motor spindle of the motor can directly drive and connect the middle partition plate 23, certainly, the direct drive mode is not limited to be provided with a speed reducer between the motor spindle and the middle partition plate 23, for example, a gear reducer and the like, the middle partition plate 23 directly drives the two wind wheel sections to rotate, certainly, the two wind wheel sections can also be indirectly driven to rotate, for example, the driving motor 24 respectively drives two parallel transmission systems, and respectively transmits the power of the driving motor 24 to the wheel bodies of the two wind wheel sections, for example, two parallel gear transmission structures, an externally meshed gear transmission system, one driving gear is simultaneously externally meshed with two transmission gears, the driving gear is coaxially installed with the motor spindle of the driving motor 24, and the two transmission gears respectively correspond to and are fixedly connected with the two wind wheel sections.
Specifically, in an embodiment, an installation cavity located on the fan air duct 211 is formed in the fan housing 21, the double-suction centrifugal fan 2 further includes a centrifugal wind wheel 22, a middle partition plate 23 and a driving motor 24, the centrifugal wind wheel 22 includes a wind wheel body rotatably installed in the installation cavity, the middle partition plate 23 is disposed in the wind wheel body and connected to the wind wheel body, the middle partition plate 23 partitions the wind wheel body into two wind wheel segments distributed along the axial direction of the wind wheel body, the driving motor 24 drives the middle partition plate 23 to rotate so as to drive the centrifugal wind wheel 22, the middle partition plate 23 partitions the fan air duct 211 into two fan air ducts 211, the two fan air inlets 212 respectively suck air, the air respectively pressurized by the two fan air ducts 211, and the air is discharged from the fan air outlet 213 in an intersection manner, so as to achieve a larger air volume.
Further, the air flow can move in the two wind wheel sections, so that the driving motor 24 can better coordinate the air volume in the two wind wheel sections under a certain power condition, in an embodiment, the middle partition plate 23 is provided with a plurality of first air holes 231 in a penetrating manner, and the first air holes 231 also play a role of the communicating flow channel 3, so that the distribution of the air flow in the two wind wheel sections can be better matched, so as to obtain a larger air volume requirement.
It should be noted that, the specific cross-sectional shape of the first ventilation hole 231 is not limited, and please refer to fig. 17 and fig. 22, for example, the cross-sectional shape may be rectangular, square, circular, etc., and of course, considering that the middle partition plate 23 has a circular structure, the first ventilation hole 231 may also be a fan-shaped hole extending along the radial direction of the middle partition plate 23, and the width of the inner side of the first ventilation hole 231 is smaller and the width of the outer side is larger.
In addition, the specific connection mode of the middle partition plate 23 and the wind wheel body is not limited, and the middle partition plate can be integrally formed or detachably connected, for example, clamped, screwed and the like, and the first air holes 231 can be formed in the middle partition plate 23 by firstly adopting a machining mode and then assembled into the wind wheel body.
In the embodiment of using a single motor to drive the centrifugal wind wheel 22 to rotate, the driving motor 24 may be disposed at any one of two ends of the centrifugal wind wheel 22 in the axial direction, in view of the fact that the installation of the driving motor 24 may block a part of the air inlet area, in order to balance the air inlet volume between the two fan air inlets 212, in one embodiment, the rear inner machine air inlet 12b is disposed on the rear wall of the casing 1, the longer wind wheel section is disposed toward the rear wall of the casing 1, and the driving motor 24 is disposed in the longer wind wheel section and is installed on the casing 1 and/or the fan housing 21, so as to facilitate the installation of the driving motor 24 on one hand, and reasonably distribute the air suction volume of the two fan air inlets 212 on the other hand.
The mounting seat of the driving motor 24 may be disposed on the fan casing 21 or on the chassis 1, and the specific mounting manner may be a threaded connection structure, for example, a bolt is used for fastening, for example, a threaded connection hole is disposed on the fan casing 21 or the chassis 1, or a connection through hole is disposed on the fan casing 21 or the chassis 1, when the threaded connection hole is disposed on the fan casing 21 or the chassis 1, the bolt may be inserted into the mounting hole of the mounting seat of the driving motor 24 and then screwed and locked in the threaded connection hole; when setting up connect the through hole on fan casing 21 or casing 1, can wear to establish in the mounting hole of the mount pad of driving motor 24 with the bolt, pass threaded connection through hole again, then lock through the nut again, the aforesaid all is the embodiment of the utility model discloses an embodiment, the mount pad setting when driving motor 24 is on casing 1, because casing 1 is the fuselage of air-conditioner indoor cabinet machine, its bearing area can set up great, sets up driving motor 24's mount pad on casing 1, and what can install is firm, when driving motor 24 moves, can realize less noise, the effect is better.
Specifically, in an embodiment, the driving motor 24 is disposed corresponding to the fan air inlet 212 opposite to the rear inner machine air inlet 12b, the air conditioning indoor machine 100 further includes a connecting seat 14, the connecting seat 14 is formed with a first connecting portion and a second connecting portion, the first connecting portion is detachably connected to the motor seat of the driving motor 24, the second connecting portion is detachably connected to the casing 1, and the connecting seat 14 serves as an adapter to facilitate installation of the driving motor 24.
Connecting seat 14 has played the bridge of being connected between driving motor 24's motor cabinet and casing 1, the utility model discloses an in the embodiment, do not restrict the concrete structural style of first connecting portion and second connecting portion, if, all can set up to the plate structure, also all can set up to the rod structure, of course, also can be the composite form of rod structure and plate structure, if, the structural style of composite bay.
The embodiment of the utility model provides an in, do not restrict the demountable installation mode of first connecting portion and driving motor 24's motor cabinet, do not restrict the demountable installation mode of second connecting portion and casing 1 yet, the same that above-mentioned demountable installation mode between them can set up, the difference that also can set up, if, all can adopt modes such as threaded connection structure, buckle connection structure, of course, can also be threaded connection structure and buckle connection structure's built-up connection mode.
Referring to fig. 21, in an embodiment, the connecting seat 14 includes a connecting plate 141 and a plurality of connecting arms 142 extending outward from a side of the connecting plate 141, the connecting arms 142 are disposed at intervals along a circumferential direction of the connecting plate 141, the first connecting portion includes the connecting plate 141, and the second connecting portion includes the connecting arms 142, so that the connecting arms 142 can be mounted on opposite sidewalls of the housing air duct 13 to perform a multidirectional supporting function, so that the driving motor 24 is more firmly fixed, and meanwhile, a gap between the connecting plate 141 and the connecting arms 142 can allow air to pass through, thereby reducing wind resistance and meeting a requirement of large air volume.
In the embodiment of the present invention, the specific shape of the connecting plate 141 is not limited, for example, the connecting plate may be circular, or square, etc., and the specific forming manner of the connecting plate 141 and the connecting arm 142 is not limited, for example, a welding manner, a machining manner, or a casting manner may be adopted, when the welding manner is adopted, the connecting arm 142 may be pre-formed into a lath, and then the lath is welded to the peripheral side of the connecting plate 141; when machining is used, it may be on a large plate that machining removes material locally to form the connecting arm 142.
Further, be formed with the second bleeder vent 1421 with fan air intake 212 intercommunication between two adjacent linking arms 142, so, on the basis of satisfying the structural strength of connecting seat 14, further improved the area of crossing the wind, reduced the windage, satisfied the demand of the big amount of wind, have better effect.
In the embodiment of the present invention, the specific shape of the second air hole 1421 is not limited, please refer to fig. 20, for example, the second air hole 1421 may be a circular shape, a square shape, or a semi-enclosed structure, and of course, the second air hole 1421 may be directly formed when the connecting arm 142 and the connecting plate 141 are formed.
It should be noted that, in order to reduce the shielding area of the connecting arm 142, the planar unfolding area of the connecting arm 142 needs to be set to be smaller, for example, the width of the connecting arm 142 can be reduced, the smaller the width of the connecting arm 142 is, the better the width is, in order to ensure the strength of the connecting arm 142, the strength can be enhanced by setting a reinforcing structure, for example, a reinforcing rib is arranged on each connecting arm 142, the shape of each reinforcing rib can be similar to that of the connecting arm 142, and can also be a strip shape and can be arranged on two opposite sides of the connecting arm 142, so that the connecting arm 142 has better rigidity, and the stable installation of the driving motor 24 is facilitated.
The embodiment of the utility model provides an in, do not restrict the concrete connection mode of strengthening rib and linking arm 142, if, can adopt welding integrated into one piece's mode, directly weld the strengthening rib on linking arm 142, perhaps directly adopt machining's mode, get rid of all the other structures except the strengthening rib.
In one embodiment, the indoor unit 100 further includes an indoor heat exchanger 4, the indoor heat exchanger 4 is disposed in the casing air duct 13 and between the fan air outlet 213 and the indoor unit air outlet 11, the airflow is pressurized by the double-suction centrifugal fan 2, then is heat-exchanged by the indoor heat exchanger 4, and is blown out from the indoor unit air outlet 11, and the airflow flows through the indoor heat exchanger 4 to make the airflow more uniform, thereby reducing the power consumption of the indoor unit 100.
The indoor heat exchanger 4 is used for radiating cold or heat in the air conditioner to the indoor, when the air conditioner is in a refrigerating mode, a low-temperature and low-pressure refrigerant passing through a restrictor in the air conditioner flows through the indoor heat exchanger 4 to exchange heat with air flow in the shell air duct 13, and the cold is fully released into the shell air duct 13, so that relatively cold air is blown to the indoor to realize refrigeration; when the air conditioner is in a heating mode, a high-temperature and high-pressure refrigerant passing through a compressor in the air conditioner flows through the indoor heat exchanger 4 to exchange heat with air flow in the shell air duct 13, and heat is fully released into the shell air duct 13, so that hotter air is blown to the indoor space, and heating is achieved.
It should be noted that the indoor heat exchanger 4 includes a plurality of core pipes arranged in a curved manner, and a refrigerant flows through the core pipes, and contacts with the air in the casing air duct 13 through the core pipes, so as to exchange the cold or heat of the refrigerant into the air flow, thereby achieving heat exchange.
In one embodiment, the air conditioning indoor unit 100 further includes a filter assembly, the filter assembly is disposed in the front indoor unit air inlet 12a and/or the rear indoor unit air inlet 12b for filtering the air flow entering the casing air duct 13, it should be noted that, when the front indoor unit air inlet 12a is disposed on the side wall of the casing 1, the filter assembly is disposed on the side wall of the casing 1, when the rear indoor unit air inlet 12b is disposed on the rear wall of the casing 1, the filter assembly is further disposed on the rear wall of the casing 1, in addition, when the sum of the numbers of the front indoor unit air inlet 12a and the rear indoor unit air inlet 12b is two, the filter assembly is also disposed two, and when the sum of the numbers of the front indoor unit air inlet 12a and the rear indoor unit air inlet 12b is three, the filter assembly is also disposed three.
The filter component can be set as a filter screen which can absorb particulate matters in the air and achieve the effect of purifying the air flow, the filter screen can be an HEPA (high efficiency particulate air filter) screen which is an efficient air filter, the effective rate of 0.1 micron and 0.3 micron can reach 99.7 percent, the HEPA screen has the characteristics that the air can pass through but fine particles can not pass through, the removal efficiency of the HEPA screen on the particles with the diameter of more than 0.3 micron (1/200 of the hair diameter) can reach more than 99.97 percent, and the HEPA screen is the most effective filter medium for the pollutants such as smoke, dust, bacteria and the like.
HEPA divides five materials of PP filter paper, glass fiber, compound PP PET filter paper, melt-blown polyester non-woven fabrics and melt-blown glass fiber, and its windage is big, and the dust holding capacity is big, and filter fineness is high, can process into various sizes and shape according to customer's needs, is fit for different models and uses.
The filter assembly can be integrally detachably mounted, specifically detachably mounted, such as in a threaded connection or a buckle connection, or can be only detachably mounted on the filter screen of the filter assembly, such as in a clamping groove arranged on a bearing part of the filter screen, and after filtering for a period of time, the filter screen of the filter assembly can be replaced or overhauled.
In an embodiment, the air conditioning indoor unit 100 further includes a heating element, and it should be noted that the heating element may be a single structure, or may be integrated with the indoor heat exchanger 4 to form an integral structure, and in an embodiment where the heating element may be a single structure, the heating element is disposed in the casing air duct 13 and between the indoor heat exchanger 4 and the indoor unit air outlet 11, and is suitable for an occasion requiring electric auxiliary heating.
The heating assembly (not shown) may be in the form of an electric heating wire, when the heating mode of the indoor air conditioner 100 is detected and the electric heating mode is turned on, the electric heating wire is energized to heat, airflow enters the casing air duct 13 from the front indoor unit air inlet 12a and/or the rear indoor unit air inlet 12b, then enters the double-suction centrifugal fan 2 through the two fan air inlets 212, forms strong airflow through the pressurization effect of the centrifugal wind wheel 22 in the double-suction centrifugal fan 2, blows out from the fan air outlet 213, is heated by the indoor heat exchanger 4, and is heated by the heating assembly, and finally is discharged to the indoor space from the indoor unit air outlet 11, and at this time, the indoor air conditioner 100 can obtain a better heating effect.
Certainly, the heating mode can be used in the situation that the heating needs to be performed quickly when the initial start is performed, the quick heating mode can be used for quickly heating when the indoor temperature is low, the indoor temperature can be automatically detected when the indoor temperature rises to a certain degree, the electric auxiliary heating mode can be automatically turned off according to the indoor temperature, the electric auxiliary heating mode can also be turned off manually, so that the power supply of the electric heating wires is cut off, and the heat exchange is performed only by the indoor heat exchanger 4.
Referring to fig. 23, considering that condensed water is condensed on the surface of the indoor heat exchanger 4 during the heat exchange process, and in order to reduce interference of the condensed water on other components, the condensed water needs to be collected, in an embodiment, a water pan 5 is further disposed at the bottom of the indoor heat exchanger 4, an upper end of the water pan 5 is open, a lower end of the water pan 5 is disposed in a funnel shape, an upper end of the water pan 5 is directly hung at a lower end of the indoor heat exchanger 4 to perform a function of guiding and collecting the condensed water, a drain outlet is disposed at a lower end of the water pan 5 to drain the condensed water, of course, a switch valve may be further disposed at the drain outlet of the water pan 5, a liquid level sensor may be further disposed in the water pan 5, and when the liquid level sensor detects that the liquid level of the condensed water in the water pan 5 reaches a set threshold value, the switch valve is controlled to open the drain outlet of the water pan 5 to automatically drain the water in the water pan 5, the threshold may be set at 2/3, 4/5, 6/7, 7/8, etc. of the total volume of the drip tray 5.
In addition, it should be noted that, a wind guiding structure is further disposed at the indoor unit air outlet 11, the wind guiding structure includes a grating and a wind guiding blade, and the angle of the wind guiding blade is adjusted, so that the air outlet direction of the indoor unit air outlet 11 can be adjusted to direct the airflow blown out from the indoor unit air outlet 11 toward different angles, thereby meeting the air outlet requirement of a wide angle.
The utility model discloses still provide an air conditioner, air conditioner include the whole technical characteristics of foretell machine 100 in the air conditioning, consequently, also have the technical effect that the above-mentioned whole technical characteristics brought, no longer give unnecessary details here.
In addition, it should be noted that the air conditioner further includes an air conditioner outdoor unit, the air conditioner outdoor unit includes an outdoor-indoor heat exchanger 4, the indoor heat exchanger 4, and a compressor, a throttling device, a refrigerant pipe and the like arranged in the air conditioner, which are integrally formed into a complete refrigerant flow path, so that heating and cooling of the air conditioner are realized.
Above only be the utility model discloses an optional embodiment to not consequently restrict the utility model discloses a patent range, all be in the utility model discloses a under the design, utilize the equivalent structure transform of doing of the contents of description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims (16)

1. An air conditioner indoor unit is characterized by comprising a casing, wherein an indoor unit air outlet is formed in the casing, the height of the casing is H, the opening length of the indoor unit air outlet is H, and H/H is more than or equal to 0.25 and less than or equal to 0.45.
2. The indoor unit of claim 1, wherein the width of the casing is W, and correspondingly, the opening width of the indoor unit air outlet is b, and b/W is greater than or equal to 0.70 and less than or equal to 0.95.
3. The indoor unit of claim 2, wherein the opening length of the effective air outlet portion of the inner unit outlet is H1, and the opening width of the effective air outlet portion of the inner unit outlet is b1, wherein H1 is not less than H, 0.25 is not less than H1/H is not more than 0.45, b1 is not less than b, and 0.70 is not less than b1/W is not more than 0.95.
4. The indoor unit of an air conditioner as claimed in claim 1, wherein the casing is further provided with an indoor unit air inlet, a casing air duct communicating the indoor unit air inlet and the indoor unit air outlet is formed in the casing, and a fan is arranged in the casing air duct;
and the rear wall and/or the side wall of the shell is/are provided with the air inlet of the internal machine.
5. The indoor unit of an air conditioner according to claim 4, wherein the fan is a double suction centrifugal fan including a fan housing in which a fan duct is formed, the fan duct having two fan inlet ports formed corresponding to both ends of the fan housing in an axial direction, and a fan outlet port formed at a side portion of the fan housing, the fan outlet port being communicated with the inner unit outlet port, both of the fan inlet ports being communicated with the inner unit inlet port.
6. The indoor unit of claim 5, wherein the rear wall or a side wall of the casing is provided with the indoor unit air inlet;
one fan air inlet is arranged corresponding to the inner machine air inlet, and the other fan air inlet is communicated with the inner machine air inlet through a communicating flow passage.
7. The indoor unit of an air conditioner as claimed in claim 5, wherein the number of the indoor unit air inlets is two, the two indoor unit air inlets include a front indoor unit air inlet and a rear indoor unit air inlet which are distributed in the front-rear direction, and both the front indoor unit air inlet and the rear indoor unit air inlet can be communicated with the indoor unit air outlet through the shell air duct;
and the two fan air inlets are communicated with the front inner machine air inlet, and the two fan air inlets are also communicated with the rear inner machine air inlet.
8. The indoor unit of claim 7, wherein the rear inner unit air inlet is provided in a rear wall of the cabinet, and the front inner unit air inlet is provided in a side wall of the cabinet;
one fan air inlet is arranged corresponding to the front inner machine air inlet and communicated with the rear inner machine air inlet through a communicating flow passage, and the other fan air inlet is arranged corresponding to the rear inner machine air inlet and communicated with the front inner machine air inlet through the communicating flow passage.
9. The indoor unit of an air conditioner according to claim 5, wherein at least one of the two blower inlets is communicated with the indoor unit inlet through a communication flow path;
the communicating flow channel is positioned in the shell air duct and is formed on the double-suction centrifugal fan and/or between the double-suction centrifugal fan and the inner wall of the shell air duct.
10. An indoor unit for an air conditioner according to claim 9, wherein a communication hole extending in an axial direction of the fan casing is formed through the fan casing;
the communication flow passage includes the communication hole;
the fan shell comprises a volute and a volute tongue arranged on the volute, the volute and the volute tongue jointly define the fan air duct, and the extension path of the communication hole is located on one side of the volute tongue.
11. The indoor unit of claim 9, wherein the lower end portion of the fan housing is positioned above the bottom wall of the housing duct so as to form a communication gap between the lower end portion of the fan housing and the bottom wall of the housing duct;
the communication flow passage includes the communication gap.
12. The indoor unit of an air conditioner as claimed in claim 5, wherein the double suction centrifugal fan further comprises a centrifugal wind wheel disposed on the fan duct, the centrifugal wind wheel has two wind wheel segments distributed along an axial direction thereof, and lengths of the two wind wheel segments along the axial direction thereof are not equal;
the double-suction centrifugal fan also comprises a middle partition plate, and the middle partition plate is arranged in the centrifugal wind wheel;
the two wind wheel sections are formed on two opposite sides of the middle clapboard;
the air inlet of the internal machine is arranged on the rear wall of the shell;
the longer wind wheel section is arranged towards the rear wall of the shell;
the double-suction centrifugal fan further comprises a driving motor, and the driving motor is arranged in the longer wind wheel section and is installed on the shell and/or the fan shell.
13. The indoor unit of claim 5, wherein the double suction centrifugal fan comprises a driving motor, and a motor base of the driving motor is fixedly mounted on the casing and/or the fan housing;
the air inlet of the internal machine is arranged on the rear wall of the shell;
the driving motor is arranged corresponding to the fan air inlet opposite to the inner machine air inlet;
the air-conditioning indoor unit further comprises a connecting seat, a first connecting portion and a second connecting portion are formed on the connecting seat, the first connecting portion can be detachably connected to a motor base of the driving motor, and the second connecting portion can be detachably connected to the shell and/or the fan shell.
14. An indoor unit of an air conditioner according to claim 13, wherein the coupling holder includes a coupling plate and a plurality of coupling arms extending outwardly from a side of the coupling plate, the plurality of coupling arms being spaced apart from each other in a circumferential direction of the coupling plate;
the first connection portion includes the connection plate;
the second connecting portion includes the plurality of connecting arms;
and a second air hole communicated with the air inlet of the fan is formed between every two adjacent connecting arms.
15. The indoor unit of claim 5, further comprising an indoor heat exchanger disposed in the casing duct;
the air inlet of the inner machine is arranged on the rear wall of the shell, and one fan air inlet of the double-suction centrifugal fan is arranged corresponding to the air inlet of the inner machine;
the double-suction centrifugal fan further comprises a centrifugal wind wheel rotatably mounted on the fan air duct, and the rotating axis of the centrifugal wind wheel is arranged corresponding to the middle position of the indoor heat exchanger;
and along the radial direction of the centrifugal wind wheel, the deviation size of the rotating axis of the centrifugal wind wheel and the center of the indoor heat exchanger is L, and L is more than or equal to 0mm and less than or equal to 150 mm.
16. An air conditioner comprising an outdoor unit of the air conditioner and the indoor unit of the air conditioner as claimed in any one of claims 1 to 15.
CN202120839373.3U 2021-04-22 2021-04-22 Air conditioner indoor unit and air conditioner Active CN214841224U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120839373.3U CN214841224U (en) 2021-04-22 2021-04-22 Air conditioner indoor unit and air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120839373.3U CN214841224U (en) 2021-04-22 2021-04-22 Air conditioner indoor unit and air conditioner

Publications (1)

Publication Number Publication Date
CN214841224U true CN214841224U (en) 2021-11-23

Family

ID=78765760

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120839373.3U Active CN214841224U (en) 2021-04-22 2021-04-22 Air conditioner indoor unit and air conditioner

Country Status (1)

Country Link
CN (1) CN214841224U (en)

Similar Documents

Publication Publication Date Title
EP3051221B1 (en) Wall-mounted air conditioner indoor unit
EP0779478B1 (en) Ceiling mounted indoor unit for an air conditioning system
CN110360621A (en) Air in kitchen regulating system
CN108489057A (en) Air compensation device and air conditioner indoor unit for air conditioner indoor unit
CN108489056A (en) Air compensation device and air conditioner indoor unit for air conditioner indoor unit
CN109084368B (en) Air conditioner
KR100323515B1 (en) Air-conditioner
CN201129804Y (en) Separation and floor type air conditioner with novel ducting system
CN210267509U (en) Indoor unit of air conditioner
CN210717828U (en) Air conditioning unit and air conditioning indoor unit thereof
CN214841224U (en) Air conditioner indoor unit and air conditioner
CN214841201U (en) Air conditioner indoor unit and air conditioner
CN211476094U (en) Air conditioner indoor unit and air conditioner
CN210399176U (en) Vertical cabinet type air conditioner
JPH08200799A (en) Air conditioner
CN214841225U (en) Air conditioner indoor unit and air conditioner
CN208566884U (en) Wall-hanging air conditioner indoor unit and air conditioner
CN212869976U (en) Indoor machine of air conditioner
CN112283803B (en) Machine and air conditioner in air conditioning
CN214841200U (en) Air conditioner indoor unit and air conditioner
CN210128426U (en) Floor type air conditioner indoor unit and air conditioner
CN111678202A (en) Machine and air conditioner in new trend module, air conditioning
CN208419131U (en) Air compensation device and air conditioner indoor unit for air conditioner indoor unit
KR20180044650A (en) Air conditioner
KR100743300B1 (en) Air conditioning system

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant