EP3957918B1

EP3957918B1 - Indoor unit for air conditioner and air conditioner

Info

Publication number: EP3957918B1
Application number: EP20202122.6A
Authority: EP
Inventors: Lianyu SHAN; Hongwu MENG
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2020-08-21
Filing date: 2020-10-15
Publication date: 2023-12-06
Anticipated expiration: 2040-10-15
Also published as: CN212961892U; DE202020105948U1; EP3957918A1

Description

FIELD

The present invention relates to a field of air conditioners, and more particularly to an indoor unit for an air conditioner and an air conditioner.

BACKGROUND

In the current air conditioners on the market, an air outlet of the air conditioner is generally provided with a swing assembly, in order to reduce adverse influence of direct blowing on human health. The existing swing assemblies are mainly divided into two types, i.e. manual swing assembly and electrical swing assembly. The swing assembly is fixedly connected to the air outlet through a fixing mechanism. The existing fixing mechanism mostly are snaps and snapping slots, however part of the snaps and the snapping slots has unreasonable structure, such that the mounting of the swing assembly is easy but the detachment of the swing assembly is difficult. Moreover, the swing assembly and the air outlet have inaccurate mounting positions, and are not firmly secured. Additionally, there is no limit adjustment mechanism between the existing swing assembly and the air outlet of the air conditioner, the swing blade in the swing assembly collides with other components in the swing assembly after excessive rotation, affecting the service life of the swing assembly. Furthermore, in the adjustment process of the rotation angle of the swing blade in the manual swing assembly, the adjustment process is time-consuming and laborious as no limit adjustment mechanism can be referenced; and no limit is provided after completion of the adjustment, the stability of the position of the swing blade after adjustment cannot be easily ensured. Therefore, it is necessary to propose an indoor unit for an air conditioner and an air conditioner, to solve at least a part of the problems existed in the related art.
CN102853 521B provides an air guide mechanism of an air conditioner and the air conditioner with the same. The air guide mechanism of the air conditioner comprises a retainer and an air guide blade group, wherein the retainer is provided with a plurality of blade installation holes, the air guide blade group is provided with a group of air guide blades which can be rotatably installed in the plurality of blade installation holes, and a limit structure capable of enabling at least one air guide blade of the air guide blade group to be selectively positioned at a plurality of preset air guide angles on the retainer. According to the air guide mechanism of the air conditioner, the air guide blade group can reliably keep the adjustment state after the angle of the air guide blade group is adjusted. Therefore, the air guide mechanism of the air conditioner is simple and convenient to assemble, disassemble and operate. The air conditioner with the air guide mechanism has stable air supply directions and brings comfort to users. In addition, the air guide mechanism of the air conditioner is convenient to assemble and disassemble.

SUMMARY

This section of the present disclosure introduces a series of simplified concepts, which will be further explained in the detailed description section. The section of the present disclosure is not intended to try to define the critical features and the essential features of the claimed technical solution, let alone to determine the protection scope of the claimed technical solution.
The present invention is directed to an indoor unit for an air conditioner as defined in the independent claim 1, and the preferable features according to the present invention are defined in the dependent claims. Any embodiment in the present disclosure that does not fall within the scope of the present invention should be regarded as an example for understanding the present invention.
Compared to the related art, the present invention at least includes the following beneficial effects.
In the present invention, by reasonably setting the structure of the fixing mechanism, the assembly and disassembly of the swing assembly and the air outlet are easy and the fixing thereof is firm and accurate; moreover the limit adjustment mechanism is provided to ensure the service life of the swing assembly, and make manual adjustment of rotation angle of the swing blade time-saving and labor-saving, thereby guaranteeing the stability of position of the swing blade after adjustment.
The present invention relates to an indoor unit for an air conditioner. Additional advantages, objectives and features of the present invention will be given in part in the following descriptions, and be appreciated in part by a person skilled in the art from the research and practice of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings are used to provide further understanding of the present invention, constitute a part of the specification, and are intended to explain the present invention with the following specific implementations, but do not constitute a limitation to the present invention which is defined in the claims. In which:

FIG. 1 is a schematic view of a structure of the present invention.
FIG. 2 is a front view of a fixing shaft not part of the present invention.
FIG. 3 is a top view of a first limit adjustment mechanism for a swing blade not part of the present invention.
FIG. 4 is a sectional view cutting along line A-A in FIG. 3.
FIG. 5 is a bottom view of a second limit adjustment mechanism for a swing blade in FIG.1 according to the invention.
FIG. 6 is a sectional view cutting along line B-B in FIG. 5.
FIG. 7 is a left view of a first mounting plate for an embodiment of the present invention.
FIG. 8 is a bottom view of a first mounting plate for an embodiment of the present invention.
FIG. 9 is a top sectional view of an assembly of an air outlet and a first mounting plate in a first fixing mechanism for an embodiment of the present invention.
FIG. 10 is a bottom view of a first mounting plate in a first fixing mechanism for an embodiment of the present invention.
FIG. 11 is a top sectional view of an air outlet in a first fixing mechanism for an embodiment of the present invention.
FIG. 12 is a sectional view cutting along line C-C in FIG. 9.
FIG. 13 is a partial left sectional view of a bottom of an air outlet in a first fixing mechanism for an embodiment of the present invention.
FIG. 14 is a top sectional view of an assembly of an air outlet and a first mounting plate in a second fixing mechanism for an embodiment of the present invention.
FIG. 15 is a top sectional view of an air outlet in a second fixing mechanism for an embodiment of the present invention.
FIG. 16 is a bottom view of a first mounting plate in a second fixing mechanism for an embodiment of the present invention.
FIG. 17 is a sectional view cutting along line D-D in FIG. 14.
FIG. 18 is a left sectional view of a first mounting plate in a second fixing mechanism for an embodiment of the present invention.
FIG. 19 is a schematic view of a first snap and a second snap for an embodiment of the present invention.
FIG. 20 is a schematic view of a first snapping slot and a second snapping slot for an embodiment of the present invention.
FIG. 21 is a top sectional view of an air outlet in a third fixing mechanism for an embodiment of the present invention.
FIG. 22 is a top view of a first mounting plate in a third fixing mechanism for an embodiment of the present invention.

DETAILED DESCRIPTION

The present invention is described in further detail below with reference to the drawings and the embodiments, to enable a person skilled in the art to implement according to the text of the specification.
It should be understood that the terms used herein, such as "have", "include" and "comprise" do not exclude existence or addition of one or more other elements or combination thereof.
As illustrated in FIGS. 1 and 5 to 22, the present invention provides an indoor unit according to claim 1. In particular, it provides for an indoor unit for an air conditioner, including a swing assembly 1 and an air conditioner housing. The air conditioner housing is provided with an air outlet 2. The swing assembly 1 includes a plurality of swing blades 1-1, a first link 1-2, and a first mounting plate 1-3. The plurality of swing blades 1-1 are spaced apart in a length direction of the first mounting plate 1-3, parallel to each other, and are all connected to the first link 1-2. The first link 1-2 drives the swing blades 1-1 to rotate about an axial direction, and the first mounting plate 1-3 is fixedly connected to the air outlet 2 through a fixing mechanism.
Working principle of the above-described technical solution is: the swing blades 1-1 and the first mounting plate 1-3 are rotatably connected, the first link 1-2 is disposed horizontally and connected to the plurality of swing blades 1-1 and is able to drive the swing blades 1-1 to rotate, and an initial state of the swing blade 1-1 is that it is parallel to an extending direction of the air outlet; when the first link 1-2 performs a straight reciprocating motion along its length direction, the plurality of swing blades 1-1 can be synchronously rotated about its axial direction towards two opposite directions, and the maximum angle of rotation is 90 degrees; the first mounting plate 1-3 can be fixedly connected to a top or a bottom of the air outlet 2 according to the practical requirements; and the motion of the first link 1-2 can be controlled manually or electrically.
Beneficial effects of the above-described technical solution are: when the air comes from the air outlet 2, the swing blades 1-1 can change left and right directions of the airflow, and the air blown out through the swing blades 1-1 can maximize coverage of the entire house; moreover, the fixing mechanism has a reasonable structure such that the assembly and disassembly of the swing assembly and the air outlet are easy and the fixing thereof is firm and accurate.
According to the invention, a lower end of the swing blade 1-1 is provided with a fixing shaft 1-4, a middle portion of the fixing shaft 1-4 is provided with a connection portion 1-4-1, a lower end of the connection portion is provided with a conical head 1-4-2, a plurality of first grooves 1-4-2-1 are uniformity distributed at a lower end of the conical head 1-4-2 along a circumferential direction thereof, and the first mounting plate 1-3 is provided with a fixing shaft mounting hole 1-3-1 corresponding to the connection portion 1-4-1.
Working principle of the above-described technical solution is: the lower end of the conical head 1-4-2 is provided with the plurality of first grooves 1-4-2-1, the conical head 1-4-2 is deformable to reduce its diameter, and the conical head 1-4-2 returns to the original shape after passing through the fixing shaft mounting hole 1-3-1, such that degrees of freedom for an up-and-down movement and a horizontal movement of the connection portion 1-4-1 are limited; the connection portion 1-4-1 corresponds to the fixing shaft mounting hole 1-3-1, and the connection portion 1-4-1 can rotate freely in the fixing shaft mounting hole 1-3-1.
Beneficial effects of the above-described technical solution are: the degrees of freedom for the up-and-down movement and the horizontal movement of the connection portion 1-4-1 are limited, such that the swing blade 1-1 rotates freely on the first mounting plate 1-3 via the fixing shaft 1-4; additionally, the fixing shaft 1-4 and the first mounting plate 1-3 are rotatably connected by deformation of the first grooves 1-4-2-1, therefore, the connection is reliable, and the disassembly and the assembly are convenient.
According to the invention, the first mounting plate 1-3 and the fixing shaft 1-4 are provided with a limit adjustment mechanism configured to prevent excessive rotation of the swing blade 1-1.
Working principle of the above-described technical solution is: when the first link 1-2 is controlled manually, that is, the swing assembly 1 is controlled manually, the limit adjustment mechanism can adjust the rotation angle of the swing blade 1-1; when the first link 1-2 is controlled electrically, that is, the swing assembly 1 is controlled electrically, the first mounting plate 1-3 and the fixing shaft 1-4 according to an embodiment which does not form part of the current invention may not be provided with the limit adjustment mechanism thereon, and the rotation angle of the swing blade 1-1 can be controlled and adjusted directly by a drive device (not illustrated) connected to the first link 1-2.
Beneficial effects of the above-described technical solution are: when the swing assembly 1 is controlled manually, the limit adjustment mechanism can avoid excessive rotation of the swing blade 1-1 and prevent the swing assembly 1 from damage due to excessive rotation, to ensure the service life of the swing assembly 1; moreover, the limit adjustment mechanism can secure the swing blade 1-1 after adjusting the rotation angle of the swing blade 1-1, to ensure stability of the position of the swing blade 1-1 after adjustment; when the swing assembly 1 is controlled additionally, the drive device has a reduced load, hence the power of the drive device can be reduced, and the energy consumption is reduced, facilitating environmental protection.
FIG. 3 and FIG. 4 illustrate the technical solution of the first limit adjustment mechanism which is not part of the invention.
In one embodiment which is not part of the present invention, the limit adjustment mechanism includes a first stopping rod a1 provided at an upper end of the connection portion 1-4-1 and fixedly connected to the fixing shaft 1-4, and two first limit protrusions b1 provided at a periphery of the fixing shaft mounting hole 1-3-1, and the first stopping rod a1 is rotatable between the two first limit protrusions b1.
Working principle of the above-described technical solution is: the height of the first limit protrusion b1 is greater than the height of the first stopping rod a1, when the fixing shaft 1-4 is rotated counterclockwise to an extreme position, the left first limit protrusion b1 will block and limit the first stopping rod a1; when the fixing shaft 1-4 is rotated clockwise to an extreme position, the right first limit protrusion b1 will block and limit the first stopping rod a1.
Beneficial effects of the above-described technical solution are: the fixing shaft 1-4 is rotated between the two first limit protrusions b1, and the rotation angle of the swing blade 1-1 on the fixing shaft 1-4 is limited between the two first limit protrusions b1, without excessive rotation.
In one embodiment which is not part of the present invention, the two first limit protrusions b 1 are further provided with a plurality of second limit protrusions c1 therebetween, the plurality of second limit protrusions are uniformity distributed in a circumferential direction of the fixing shaft mounting hole 1-3-1, the second limit protrusion c 1 has a height smaller than a height of the first limit protrusion b1, each groove defined between two adjacent second limit protrusions c1 and each groove defined between the first limit protrusion b1 and its adjacent second limit protrusion c1 correspond to the first stopping rod a1.
It could be understood that, the expression "a first element corresponds to a second element" used herein means that the first element is able to be fitted with the second element. For example, each groove defined between two adjacent second limit protrusions c1 and each groove defined between the first limit protrusion b1 and its adjacent second limit protrusion c1 correspond to the first stopping rod a1, that is, each groove defined between two adjacent second limit protrusions c1 and each groove defined between the first limit protrusion b1 and its adjacent second limit protrusion c1 are able to fitted with the first stopping rod a1.
Working principle of the above-described technical solution is: a width of each groove defined between two adjacent second limit protrusions c1 and a width of each groove defined between the first limit protrusion b1 and its adjacent second limit protrusion c1 correspond to a width of the first stopping rod a1, the first stopping rod a1 can be stably snapped into the groove defined between two adjacent second limit protrusions c1 and the groove defined between the first limit protrusion b1 and its adjacent second limit protrusion c1; the height of the second limit protrusion c1 is less than the height of the first limit protrusion b1 and slightly greater than the height of the first stopping rod a1, and the first stopping rod a1 and the second limit protrusion c1 are provided with rounded or chamfered corners thereon, such that the first stopping rod a1 is facilitated to deform to go across the second limit protrusion c1, and snap into the groove defined between adjacent second limit protrusions c1 and the groove defined between the first limit protrusion and its adjacent second limit protrusion c1.
Beneficial effects of the above-described technical solution are: when the first stopping rod a1 switches the groove and goes across the second limit protrusion c1, a jerk will be felt, and the position of the swing blade 1-1 on the fixing shaft 1-4 can be determined by the felt jerk, facilitating manual adjustment of the angle of the swing blade 1-1 in combination with the situation of the blown-out air by the user; additionally, the first stopping rod a1 can be stably snapped into the groove defined between two adjacent second limit protrusions c1 and the groove defined by the first limit protrusion b1 and its adjacent second limit protrusion c1, thereby ensuring the stability of position of the swing blade 1-1 after its angle adjustment.
FIG. 5 and FIG. 6 illustrate the technical solution of the second limit adjustment mechanism. In one embodiment of the present invention, the limit adjustment mechanism includes a second stopping rod a2 provided at a periphery of the fixing shaft mounting hole 1-3-1 and fixedly connected to a lower surface of the first mounting plate 1-3, two third limit protrusions b2 are provided on a side wall of the conical head 1-4-2 along a circumferential direction thereof, and the second stopping rod a2 is rotatable between the two third limit protrusions b2.
Working principle of the above-described technical solution is: the height of the third limit protrusion b2 is greater than the height of the second stopping rod a2, when the fixing shaft 1-4 is rotated counterclockwise to an extreme position, the left third limit protrusion b2 will block and limit the second stopping rod a2; when the fixing shaft 1-4 is rotated clockwise to an extreme position, the right third limit protrusion b2 will block and limit the second stopping rod a2.
Beneficial effects of the above-described technical solution are: the fixing shaft 1-4 is rotated between the two third limit protrusions b2, and the rotation angle of the swing blade 1-1 on the fixing shaft 1-4 is limited between the two third limit protrusions b2, without excessive rotation.
In one embodiment of the present invention, the second stopping rod a2 corresponds to the first groove 1-4-2-1. Working principle of the above-described technical solution is: a width of the second stopping rod a2 corresponds to a width of the first groove 1-4-2-1, and the second stopping rod a2 can be stably snapped into the first groove 1-4-2-1; the second stopping rod a2 and the first groove 1-4-2-1 are provided with rounded or chamfered corners thereon, such that the second stopping rod a2 is facilitated to deform to escape from the first groove 1-4-2-1.
Beneficial effects of the above-described technical solution are: when the second stopping rod a2 switches the first groove 1-4-2-1, escapes from the first groove 1-4-2-1, and snaps into an adjacent first groove 1-4-2-1, a jerk will be felt, and the position of the swing blade 1-1 on the fixing shaft 1-4 can be determined by the felt jerk, facilitating manual adjustment of angle of the swing blade 1-1 in combination with the situation of the blown-out air by the user; additionally, the second stopping rod a2 can be stably snapped into the first groove 1-4-2-1, thereby ensuring the stability of position of the swing blade 1-1 after its angle adjustment.
FIGS. 7-13 and FIGS. 19-20 illustrate the technical solution of the first fixing mechanism. In one embodiment of the present invention, the first mounting plate 1-3 includes a first mounting plate body 1-3-2, the fixing shaft mounting hole 1-3-1 is defined in the first mounting plate body 1-3-2, the first mounting plate body 1-3-2 has a Z-shaped section, a flat face of a lower end of the Z shape is a first flat face 1-3-2-1, a right end of the first flat face 1-3-2-1 is provided with an extension portion 1-3-3 extending obliquely and downwards, the first mounting plate body 1-3-2 is internally provided with a C-shaped first reinforcing rib 1-3-2-2 in a perimeter direction thereof, the first reinforcing rib 1-3-2-2 has a first end fixedly connected to a left end of the extension portion 1-3-3, and a second end fixedly connected to a right end of the extension portion 1-3-3, and a plurality of second reinforcing ribs 1-3-2-3 are uniformity distributed on the first flat face 1-3-2-1 and fixedly connected to the extension portion 1-3-3.
Working principle of the above-described technical solution is: the first reinforcing rib 1-3-2-2, the second reinforcing rib 1-3-2-3, and the extension portion 1-3-3 can enhance the overall strength of the first mounting plate 1-3.
Beneficial effects of the above-described technical solution are: the first mounting plate 1-3 has a great strength, is not easily bent or deformed, and can be mounted conveniently and accurately.
In one embodiment of the present invention, the fixing mechanism includes a plurality of first snaps d1 provided on the first mounting plate 1-3, at least four first snaps d1 are provided, two of the first snaps d1 are horizontally oriented on the first mounting plate body 1-3-2, other two of the first snaps d1 are vertically oriented on the first mounting plate body 1-3-2, a bottom of the air outlet 2 is provided with a first snapping slot e1 corresponding to the first snap d1.
It should be noted that, as illustrated in FIG. 10, the term "horizontal" or "horizontally" used herein refers to a length direction of the first mounting plate body 1-3-2, and the term "vertical" or "vertically" used herein refers to a direction perpendicular to the length direction of the first mounting plate body 1-3-2.
Working principle of the above-described technical solution is: the first snap d1 on the first mounting plate 1-3 is inserted into the first snapping slot e1 of the bottom of the air outlet 2, the horizontally oriented first snap d1 limits the degree of freedom of a left-and-right translation of the first mounting plate 1-3, the vertically oriented first snap d1 limits the degree of freedom of a front-and-rear translation of the first mounting plate 1-3, and the first mounting plate 1-3 and the air outlet 2 are firmly secured; the first snap d1 on the first mounting plate 1-3 escapes from the first snapping slot e1 of the bottom of the air outlet 2, and the first mounting plate 1-3 is detached from the air outlet 2.
Beneficial effects of the above-described technical solution are: the first mounting plate 1-3 is firmly secured to the bottom of the air outlet 2 through the fixing mechanism, and is detachable.
In one embodiment of the present invention, the bottom of the air outlet is provided with a second groove e-1a located behind the first snapping slot e1, a first protrusion d-1a is provided behind the first snap oriented horizontally, and the first protrusion d-1a is fixedly connected to a top of the first mounting plate body 1-3-2.
Working principle of the above-described technical solution is: combination of the first protrusion d-1a and the first reinforcing rib 1-3-2-2 corresponds to the second groove e-1a, that is, the second groove e-1a just accommodates the first protrusion d-1a and the first reinforcing rib 1-3-2-2; furthermore, the first protrusion d-1a limits forward and downward degrees of freedom of the first reinforcing rib 1-3-2-2, and the second groove e-1a limits a rearward degree of freedom of the first reinforcing rib 1-3-2-2 and a forward degree of freedom of the first protrusion d-1a.
Beneficial effects of the above-described technical solution are: when mounting the first reinforcing rib 1-3-2-2 is the locating basis, the mounting is convenient and accurate; moreover, forward, rearward and downward degrees of freedom of the first mounting plate 1-3 are further limited, and thus fixing of the first mounting plate 1-3 and the air outlet 2 are firmer.
FIGS. 7-8 and FIGS. 14-20 illustrate the technical solution of the second fixing mechanism.
In one embodiment of the present invention, the fixing mechanism includes a plurality of second snaps d2 provided on the bottom of the air outlet 2, at least four second snaps d2 are provided, two of the second snaps d2 are horizontally oriented on the bottom of the air outlet 2, other two of the second snaps d2 are vertically oriented on the bottom of the air outlet 2, the first mounting plate body 1-3-2 is provided with a second snapping slot e2 corresponding to the second snap d2.
It should be noted that, as illustrated in FIG. 15, the term "horizontal" or "horizontally" used herein refers to a length direction of the bottom of the air outlet 2, and the term "vertical" or "vertically" used herein refers to a direction perpendicular to the length direction of the bottom of the air outlet 2.
Working principle of the above-described technical solution is: the second snap d2 of the bottom of the air outlet 2 is inserted into the second snapping slot e2 of the first mounting plate 1-3, and the air outlet 2 is firmly secured to the first mounting plate 1-3; the second snap d2 of the bottom of the air outlet 2 escapes from the second snapping slot e2 of the first mounting plate 1-3, and the first mounting plate 1-3 is detached from the air outlet 2.
Beneficial effects of the above-described technical solution are: the first mounting plate 1-3 is firmly secured to the bottom of the air outlet 2 through the fixing mechanism, and is detachable.
In one embodiment of the present invention, the top of the first mounting plate body 1-3-2 is provided with a third groove e-1b located between the first reinforcing rib 1-3-2-2 and the second snapping slot e2, a second protrusion d-1b is provided behind the second snap d2 and corresponds to the third groove e-1b, and the second protrusion d-1b is fixedly connected to the bottom of the air outlet 2.
Working principle of the above-described technical solution is: the second protrusion d-1b in the third groove e-1b limits forward and downward degrees of freedom of the first reinforcing rib 1-3-2-2, and the air outlet 2 limits a rearward degree of freedom of the first reinforcing rib 1-3-2-2.
Beneficial effects of the above-described technical solution are: when mounting the first reinforcing rib 1-3-2-2 is the locating basis, the mounting is convenient and accurate; moreover, forward, rearward and downward degrees of freedom of the first mounting plate 1-3 are further limited, and thus fixing of the first mounting plate 1-3 and the air outlet 2 are firmer.
In one embodiment of the present invention, the first snap d1 and the second snap d2 each includes a snap body d-2 and a snap protrusion d-3, the snap body d-2 has a rectangular section, the snap protrusion d-3 has a right-angled trapezoid section, a flat face where an oblique side of the right-angled trapezoid lies is a first inclined face d-3-1, a flat face where a vertical side of the right-angled trapezoid lies is a second flat face d-3-2, a bottom face of the snap protrusion d-3 is fixedly connected to a top face of the snap body d-2, the second flat face d-3-2 is flush with a front side face of the snap body d-2, and a bottom face of the snap body d-2 is fixedly connected to the top of the first mounting plate body 1-3-2 or the bottom of the air outlet 2.
Working principle of the above-described technical solution is: the second flat face d-3-2 is flush with the front side face of the snap body d-2, the first snap d1 is inserted into the first snapping slot e1 without being stuck by the first snapping slot e1, and the second snap d2 is inserted into the second snapping slot e2 without being stuck by the second snapping slot e2; the first snap inclined face d-3-1 drives the first snap d1 to deform and then be inserted into the first snapping slot e1, and the first inclined face d-3-1 drives the second snap d2 to be inserted into the second snapping slot e2.
Beneficial effects of the above-described technical solution are: the first snap d1 can be smoothly inserted into and escape from the first snapping slot e1, and the second snap d2 can be smoothly inserted into and escape form the second snapping slot e2.
In one embodiment of the present invention, the first snapping slot e1 and the second snapping slot e2 are each provided with a snapping slot protrusion e-2 corresponding to the snap protrusion d-2 therein, and a lower end of the snapping slot protrusion e-2 is provided with a second inclined face e-3 corresponding to the first inclined face d-3-1.
Working principle of the above-described technical solution is: after the first snap d1 is inserted into the first snapping slot e1 and the second snap d2 is inserted into the second snapping slot e2, the snapping slot protrusion e-2 limits the degrees of freedom of the translation and rotation of the snap protrusion d-2; the second inclined face e-3 corresponds to the first inclined face d-3-1, the second inclined face e-3 drives the deformation of the first inclined face d-3-2, the deformation of the first inclined face d-3-1 becomes easier, and the first inclined face d-3-1 more readily drives the first snap d1 to be inserted into the first snapping slot e1 after deformation; additionally, the first inclined face d-3-1 more readily drives the second snap d2 to deform and be inserted into the second snapping slot e2.
Beneficial effects of the above-described technical solution are: the snapping slot protrusion e-2 corresponds to the snap protrusion d-2, after the first snap d1 is inserted into the first snapping slot e1 or the second snap d2 is inserted into the second snapping slot e2, the first mounting plate 1-3 and the air outlet 2 are firmly secured; the first inclined face d-3-1 corresponds to the second inclined face e-3, the first snap d1 can be more smoothly inserted into and escape from the first snapping slot e1, and the second snap d2 can be smoothly inserted into and escape form the second snapping slot e2.
FIGS. 7-8 and FIGS. 21-22 illustrate the technical solution of the third fixing mechanism.
In one embodiment of the present invention, the fixing mechanism includes a plurality of first round hole d3 provided on the first mounting plate 1-3, and the bottom of the air outlet 2 is provided with a threaded hole e3 corresponding to the first round hole d3.
Working principle of the above-described technical solution is: the fixing screw passes through the first round hole d3 and is locked with the threaded hole e3.
Beneficial effects of the above-described technical solution are: the first mounting plate 1-3 is firmly secured to the bottom of the air outlet 2 through the fixing mechanism, and is detachable; additionally, the threaded connection fixation is more accurate and firmer.
An air conditioner includes an outdoor unit, and the above-described indoor unit. The indoor unit is in fluid communication with the outdoor unit such that refrigerant is able to circulate between the indoor unit and the outdoor unit.
Working principle of the above-described technical solution is: the fixing mechanism has a reasonable structure, and the fixing mechanism may be combination of any one or more of the technical solution of the first fixing mechanism, the technical solution of the second fixing mechanism technical solution and the technical solution of the third fixing mechanism, such that the assembly and disassembly of the swing assembly 1 and the air outlet 2 are easy and the fixing thereof is firm and accurate; the limit adjustment mechanism limits the rotation angle of the swing blade 1-1, and the first link 1-2 will not collide with the fixing shaft 1-4, thereby ensuring the service life of the swing assembly 1; additionally, during manual adjustment of the swing blade 1-1, a jerk will be felt when the swing blade 1-1 is rotated on the first mounting plate 1-3, the position of the swing blade 1-1 can be determined by the felt jerk, facilitating manual adjustment of the angle of the swing blade 1-1 in combination with the situation of the blown-out air by the user; the adjustment process is time-saving and labor-saving, and the position of the swing blade 1-1 after being adjusted by adjusting the limit adjustment mechanism can be fixed, thereby guaranteeing the stability of position of the swing blade 1-1.
Beneficial effects of the above-described technical solution are: in the present embodiments of the invention, by reasonably setting the structure of the fixing mechanism, the assembly and disassembly of the swing assembly 1 and the air outlet 2 are easy and the fixing thereof is firm and accurate; moreover the limit adjustment mechanism is provided to ensure the service life of the swing assembly, and make manual adjustment of rotation angle of the swing blade 1-1 time-saving and labor-saving, thereby guaranteeing the stability of position of the swing blade 1-1 after adjustment.
In the specification, it is to be understood that terms such as "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial" and "circumferential" should be construed to refer to the orientation as then described or as shown in the drawings under discussion. These relative terms are for convenience of description and do not require that the present invention be constructed or operated in a particular orientation.
In the present invention, unless specified or limited otherwise, the terms "mounted," "connected," "coupled," "fixed" and the like are used broadly, and may be, for example, fixed connections, detachable connections, or integral connections; may also be mechanical or electrical connections; may also be direct connections or indirect connections via intervening structures; may also be inner communications of two elements, unless limited otherwise. These having ordinary skills in the art should understand the specific meanings in the present invention according to specific situations.
Although implementations of the present invention are disclosed as above, they are not merely limited to applications listed in the specification and the embodiments, and they are absolutely applicable to various fields suitable for the present invention as long as in the scope of the claims. For a person skilled in the art, additional modifications can be readily achieved while staying in the scope of the claims, therefore, the present invention is not limited to the specified details and the drawings illustrated and described herein but is defined by the claims. These having ordinary skills in the art should understand the specific meanings in the present invention according to specific situations, the invention being defined in the claims.

Claims

An indoor unit for an air conditioner, comprising:
a swing assembly (1) comprising a plurality of swing blades (1-1) parallel to each other, a first link (1-2), and a first mounting plate (1-3); and

an air conditioner housing provided with an air outlet (2),

wherein the plurality of swing blades (1-1) are spaced apart in a length direction of the first mounting plate (1-3), and all connected to the first link (1-2), the first link (1-2) is configured to drive the swing blades (1-1) to rotate about an axial direction, and the first mounting plate (1-3) is fixedly connected to the air outlet (2) through a fixing mechanism,

wherein a lower end of each swing blade (1-1) is provided with a fixing shaft (1-4), a middle portion of the fixing shaft (1-4) is provided with a connection portion (1-4-1), a lower end of the connection portion is provided with a conical head (1-4-2), a plurality of first grooves (1-4-2-1) are uniformity distributed at a lower end of the conical head (1-4-2) along a circumferential direction thereof, and the first mounting plate (1-3) is provided with a fixing shaft mounting hole (1-3-1) corresponding to the connection portion (1-4-1),

wherein the first mounting plate (1-3) and the fixing shaft (1-4) are provided with a limit adjustment mechanism configured to prevent excessive rotation of the swing blade (1-1),

characterized in that the limit adjustment mechanism comprises a second stopping rod (a2) provided at a periphery of the fixing shaft mounting hole (1-3-1) and fixedly connected to a lower surface of the first mounting plate (1-3), two third limit protrusions (b2) are provided on a side wall of the conical head (1-4-2) along a circumferential direction thereof, and the second stopping rod (a2) is rotatable between the two third limit protrusions (b2).
The indoor unit according to claim 1, wherein the limit adjustment mechanism comprises a first stopping rod (a1) provided at an upper end of the connection portion (1-4-1) and fixedly connected to the fixing shaft (1-4), and two first limit protrusions (b1) provided at a periphery of the fixing shaft mounting hole (1-3-1), and the first stopping rod (a1) is rotatable between the two first limit protrusions (b1).
The indoor unit according to claim 2, wherein the two first limit protrusions (b1) are further provided with a plurality of second limit protrusions (c1) therebetween, the plurality of second limit protrusions are uniformity distributed in a circumferential direction of the fixing shaft mounting hole (1-3-1), the second limit protrusion (c1) has a height smaller than a height of the first limit protrusion (b1), a width of each groove defined between two adjacent second limit protrusions (c1) and a width of each groove defined between the first limit protrusion (b1) and its adjacent second limit protrusion (c1) correspond to a width of the first stopping rod (a1).
The indoor unit according to claim 1, wherein the second stopping rod (a2) corresponds to the first groove (1-4-2-1).
An air conditioner, comprising:
an outdoor unit; and

an indoor unit according to any one of claims 1 to 4, the indoor unit is in fluid communication with the outdoor unit such that refrigerant is able to circulate between the indoor unit and the outdoor unit.