CN107192019B

CN107192019B - Indoor unit of air conditioner

Info

Publication number: CN107192019B
Application number: CN201710393080.5A
Authority: CN
Inventors: 张立智; 任克坤; 刘丙磊; 徐雪尉; 王宁; 薛明; 王建平; 宁贻江; 孙川川; 葛传双; 关宣宇; 管丽萍
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Haier Smart Home Co Ltd
Priority date: 2017-05-27
Filing date: 2017-05-27
Publication date: 2020-04-24
Anticipated expiration: 2037-05-27
Also published as: CN107192019A

Abstract

The invention provides an indoor unit of an air conditioner. This machine in air conditioning includes: the shell comprises a framework and a housing, wherein the framework is used for supporting the fan of the indoor unit and the heat exchanger of the indoor unit, the housing is arranged to cover the framework, and an air inlet is formed at the top of the housing; an ion emission module configured to charge particles in a surrounding environment; and an IFD dust removal assembly comprising an IFD dust removal module configured to adsorb charged particles in an ambient environment; at least one drive device configured to be partially coupled to the IFD dust extraction assembly to drive movement of the IFD dust extraction assembly. The IFD dust removal component is driven by drive arrangement and is being shielded the purification position of air intake and shift out the non-purification position of air intake and switch. The air conditioner provided by the invention has high purification efficiency, can effectively take out PM2.5 in the surrounding environment, can start the purification function according to the requirement, and reduces the cleaning frequency of the IFD dust removal module.

Description

Indoor unit of air conditioner

Technical Field

The invention relates to the air conditioning technology, in particular to an air conditioner indoor unit with a dust removal function.

Background

Air conditioners (Air conditioners for short) are electrical appliances for supplying treated Air directly to an enclosed space or area, and in the prior art, Air conditioners are generally used to condition the temperature of a work environment. Along with the higher and higher requirement of people on the environment requirement comfort level, the function of the air conditioner is also richer and richer.

Due to the increasing demand for air cleanliness, some solutions for providing a purifying device in an air conditioner to purify a portion of air entering the air conditioner have appeared, however, these air conditioners with purifying function have the following problems: because only part of air can be purified, the purification effect is poor; in addition, since the purification apparatus operates for a long time, even if the air is in a very clean condition, it remains in operation, so that the service life of the purification apparatus is reduced and secondary pollution is also easily caused.

Disclosure of Invention

The invention aims to provide an air conditioner indoor unit with high air purification quality, high efficiency and high flexibility and a dust removal function.

A further object of the present invention is to improve the stability of the movement of an Intense field dielectric dust removal assembly (IFD dust removal assembly).

It is a further object of the present invention to reduce the rate of damage to electrical wiring that supplies power to an IFD dust extraction module.

In particular, the present invention provides an indoor unit of an air conditioner having a dust removing function, comprising:

the casing comprises a framework for supporting the fan of the indoor unit and the heat exchanger of the indoor unit and a housing which is covered on the framework and provided with an air inlet at the top;

an ion emission module configured to charge particles in a surrounding environment; and

the IFD dedusting assembly comprises an IFD dedusting module, a first filter module and a second filter module, wherein the IFD dedusting module is configured to adsorb charged particles in the surrounding environment so as to purify air;

at least one driving device, which is arranged to be partially connected with the IFD dust removal assembly so as to drive the IFD dust removal assembly to move; and is

The IFD dust removal assembly is driven by the driving device to switch between a purification position for shielding the air inlet and a non-purification position for moving out of the air inlet.

Optionally, each of the driving devices comprises:

the gear and the arc-shaped rack are arranged to be meshed with the gear;

one end of the connecting rod is rotatably connected with the gear, and the other end of the connecting rod is rotatably connected with the IFD dust removal component, so that the IFD dust removal component moves under the driving of the gear;

a guide rail assembly disposed at a lateral end of the housing to limit a path of movement of the arcuate rack and the IFD dust extraction assembly;

the motor is arranged on the housing, and an output shaft of the motor is in driving connection with the gear to provide power for the rotation of the gear.

Optionally, the rail assembly comprises:

a base disposed at a lateral end of the housing; and

the side cover is buckled on the surface of the base far away from the transverse end, and the side cover and the base define an arc-shaped guide groove matched with the arc-shaped rack and a placing position for placing the gear; wherein

An output shaft of the motor is arranged to penetrate through the base and is in driving connection with the gear so as to drive the arc-shaped rack to move along the extending direction of the arc-shaped guide groove;

the side cover is far away from the surface of the base and is provided with an arc-shaped guide rail so as to limit the movement path of the IFD dust removal assembly.

Optionally, wherein the IFD dust extraction assembly further comprises:

one end of the mounting rack is respectively and rotatably connected with the connecting rod of the at least one driving device, and the other end of the mounting rack is respectively matched with the arc-shaped guide rail; and is

First draw-in groove has been seted up to the mounting bracket, first draw-in groove set up to with the horizontal tip joint of IFD dust removal module, in order to avoid IFD dust removal module damages.

Optionally, the guide rail assembly is provided with a first wire passing hole penetrating through the guide rail assembly along the transverse direction;

the mounting frame is provided with a second wire passing hole which penetrates through the mounting frame along the transverse direction, and an electric wire for supplying power to the IFD dust removal module is led out from the first wire passing hole and is electrically connected with the IFD dust removal module through the second wire passing hole; and is

The first axis of crossing the line sets up to, its with when IFD dust removal module is located the purification position the distance of the axis of line hole is crossed to the second, and its with when IFD dust removal module is located the non-purification position the distance of the axis of line hole is crossed to the second equals to reduce the spoilage of electricity line.

Optionally, an axis of the second wire passing hole is arranged to coincide with a center line of the mounting block in a transverse direction of the indoor unit, so as to reduce a damage rate of the electrical connection wire.

Optionally, the indoor unit of an air conditioner further includes:

a protective case including a pivot part extending in a lateral direction of the indoor unit, and a swing part extending perpendicular to the pivot part from an end of the pivot part adjacent to the IFD dust removing assembly; wherein

The pivot part is pivotally fixed on the first wire passing hole;

the protective shell is provided with a channel extending from one end face to the other end face of the protective shell, the electric connecting wire is led in from a channel opening of the pivot portion and led out from the channel opening of the swing portion to the second wire passing hole, and therefore abrasion of the electric connecting wire is avoided.

Optionally, at least two clamping blocks arranged at intervals extend from the end surface of the pivot part, a wedge-shaped protrusion extending in a direction away from the central axis of the pivot part is formed at the tail end of each clamping block, and each wedge-shaped protrusion is fastened to the surface of the guide rail assembly, which is far away from the IFD dust removal assembly, so as to facilitate the installation of the protective shell; and/or

The swinging part is provided with a linear opening extending along the extending direction of the swinging part, and the opening size of the linear opening is smaller than 1/4-1/3 circumferences of the channel, so that the electric connecting wire can be led out and fixed conveniently.

Optionally, the IFD dust removal assembly is configured to be switched between the purification position and the non-purification position by the driving device according to an air quality index of a surrounding environment;

if the air quality index is larger than or equal to a preset threshold value, the IFD dust removal assembly is switched to a purification position, and the ion emission module and the IFD dust removal module start to work;

if the air quality index is lower than the preset threshold value, the IFD dust removal assembly is switched to a non-purification position, and the ion emission module and the IFD dust removal module stop working.

Optionally, the ion emission module is disposed on the framework; and is

The emission terminals of the ion emission module are disposed through the housing and extend outwardly to charge particles in the ambient environment.

The air conditioner indoor unit is provided with the ion emission module and the IFD dust removal assembly, the IFD dust removal assembly can be switched between a purification position for shielding the air inlet and a non-purification position for moving out of the air inlet under the driving of the driving device, the purification efficiency is high, PM2.5 in the surrounding environment can be effectively taken out, and when the IFD dust removal assembly is in the purification position, the IFD dust removal assembly can be driven by the driving device to move to the shielding air inlet, so that the air flow entering the indoor unit is purified, and the air quality of the surrounding environment is improved; when not purifying the position, IFD dust removal subassembly can move out the air intake under drive arrangement drives to show the air intake, thereby make the air current directly get into indoor set through IFD dust removal subassembly. Therefore, the purification function can be started as required, and the cleaning frequency of the IFD dust removal module is reduced.

Furthermore, the driving device for driving the IFD dust removal assembly comprises a gear, an arc-shaped rack, a guide rod, a guide rail assembly and a motor, the whole structure is ingenious in design, the occupied space is small, the driving device is particularly suitable for indoor units with narrow space, and the guide rail assembly and the motor provide a high-stability moving track and power for the IFD dust removal assembly to move to or out of the air inlet.

Furthermore, the guide rail assembly and the mounting frame are respectively provided with the first wire passing hole and the second wire passing hole, and the distance between the axis of the first wire passing hole and the axis of the second wire passing hole when the IFD dust removal module is positioned at the purification position is equal to the distance between the axis of the second wire passing hole when the IFD dust removal module is positioned at the non-purification position, so that the problem that an electric connection wire for supplying power to the IFD dust removal module is damaged due to excessive pulling or bending in the moving process of the IFD dust removal module can be effectively avoided. Furthermore, the axis of the second wire passing hole is arranged to be coincident with the central line of the mounting block in the transverse direction of the indoor unit, so that the damage rate of an electric connection wire for supplying power to the IFD dust removal module is further reduced. Particularly, the invention is also provided with a protective shell, the pivot part of the protective shell is pivotally fixed on the first wire passing hole, an electric connecting wire for supplying power to the IFD dust removal module is led in from the passage opening of the pivot part and led out from the passage opening of the swing part to the second wire passing hole, so that the electric connecting wire between the first wire passing hole and the second wire passing hole can be prevented from rotating around the axis of the first wire passing hole and being damaged by friction with the sliding rail assembly in the moving process of the IFD dust removal assembly.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic cross-sectional view of an indoor unit according to an embodiment of the present invention;

FIG. 2 is a schematic block diagram of an indoor unit in accordance with one embodiment of the present invention, wherein the IFD dust extraction assembly is in a cleaning position;

FIG. 3 is a schematic block diagram of an indoor unit in accordance with one embodiment of the present invention, wherein the IFD dust extraction assembly is in a non-purging position;

FIG. 4 is a schematic block diagram of a drive arrangement and an IFD dust extraction assembly in accordance with one embodiment of the present invention;

FIG. 5 is a schematic structural view of the driving apparatus in FIG. 4;

FIG. 6 is a schematic block diagram of the drive of FIG. 5 with the side cover removed to show the gearing of the drive;

FIG. 7 is a schematic exploded view of the drive arrangement of FIG. 5;

fig. 8 is a sectional view of an indoor unit according to an embodiment of the present invention;

fig. 9 is a schematic structural view of a protective case according to one embodiment of the present invention.

Detailed Description

Fig. 1 is a schematic cross-sectional view of an indoor unit 100 according to one embodiment of the present invention. Referring to fig. 1, the indoor unit 100 of the air conditioner may include a cabinet, an indoor unit heat exchanger 160 disposed in the cabinet, and an indoor unit fan 170 disposed below the indoor unit heat exchanger 160. Specifically, the cabinet may include a frame 110 for supporting the indoor unit fan 170 and the indoor unit heat exchanger 160, a casing 120 covering the frame 110, a panel 130 connected to a front side of the casing 120 for constituting a front portion of the cabinet, and left and right end covers disposed at both sides of the cabinet, respectively. The housing 120 has an air inlet 121 at its top and an air outlet at its bottom. An air inlet grille may be disposed at the air inlet 121, and indoor air enters the indoor unit 100 through the air inlet grille. The indoor unit heat exchanger 160 may be configured to exchange heat with air flowing therethrough to change the temperature of the air flowing therethrough into heat-exchanged air. The indoor fan 170 may be configured to cause a part of the indoor air (air of the ambient environment where the indoor unit 100 is located) entering from the air inlet 121 to flow toward the indoor heat exchanger 160, and cause the heat-exchanged air heat-exchanged by the indoor heat exchanger 160 to flow toward the air outlet via the indoor fan 170.

In particular, the indoor unit 100 further includes an ion emission module 154, an IFD dust extraction assembly 150, and at least one driving device 140. The ion emission module 154 may be configured to charge particles in the ambient environment. In some embodiments, the ion emission module 154 may be disposed on the framework 110. The emission terminals of the ion emission module 154 may be disposed through the housing and extend outward to charge particles in the surrounding environment. The IFD dust removal assembly 150 may include an IFD dust removal module 151, and the IFD dust removal module 151 may be configured to adsorb charged particles in the surrounding environment to purify indoor air. At least one drive device 140 may be configured to be partially fixedly coupled to the IFD dust extraction assembly 150 to drive movement of the IFD dust extraction assembly 150. In the present invention, the number of the driving devices 140 may be one, two, three or more, etc. In some preferred embodiments, the number of the driving devices 140 is two. The two driving devices 140 are respectively configured to be partially fixedly connected with the ends of the two lateral sides of the IFD dust removal assembly 150, and the two driving devices 140 are configured to work synchronously to improve the stability of the movement of the IFD dust removal assembly 150.

FIG. 2 is a schematic block diagram of the indoor unit 100 according to one embodiment of the present invention, wherein the IFD dust removal assembly 150 is in a cleaning position; fig. 3 is a schematic structural view of the indoor unit 100 according to an embodiment of the present invention, in which the IFD dust removing assembly 150 is in a non-cleaning position. Referring to fig. 2 and 3, the IFD dust removal module 151 may be configured to be switched between a cleaning position shielding the air inlet 121 and a non-cleaning position moving out of the air inlet 121 by the driving device 140. In some embodiments, the IFD dust extraction assembly 150 may completely shield the air inlet 121 when in the cleaning position. The non-purging position may be a position between the panel 130 and the enclosure 120. In other embodiments, the non-purging position may be a position of the rear side of the skeleton 110.

The indoor unit 100 of the air conditioner is provided with the ion emission module 154 and the IFD dust removal assembly 150, and the IFD dust removal assembly 150 can be switched between a purification position for shielding the air inlet 121 and a non-purification position for moving out of the air inlet 121 under the driving of the driving device 140, so that not only is the purification efficiency high and the PM2.5 in the surrounding environment can be effectively taken out, but also when the IFD dust removal assembly 150 is at the purification position, the IFD dust removal assembly 150 can be driven by the driving device 140 to move to shield the air inlet 121, thereby purifying the air flow entering the indoor unit 100 and improving the air quality of the surrounding environment; in the non-cleaning position, the IFD dust extraction assembly 150 is moved out of the air inlet 121 by the driving device 140 to expose the air inlet 121, so that the airflow can directly enter the indoor unit 100 without passing through the IFD dust extraction assembly 150. Thereby, the cleaning function can be started as required, and the cleaning frequency of the IFD dust removal module 151 is reduced.

A dust filter screen may be further disposed between the air inlet grille and the IFD dust removal assembly 150, and an air flow entering the indoor unit 100 is first roughly filtered by the dust filter screen, and then is finely filtered by the IFD dust removal module 151 to be sufficiently purified and then enters the indoor unit 100. According to the invention, the air flow entering the indoor unit 100 is firstly filtered by the dust filter screen to filter larger-sized particles such as dust particles and dust, so that the problem that the larger-sized particles in the air flow enter the IFD dust removal assembly 150 to influence the purification efficiency of the IFD dust removal assembly 150 is avoided, and meanwhile, the cleaning frequency of the IFD dust removal assembly 150 is also reduced.

In some embodiments, the indoor unit 100 may further include a detection module (not shown). The detection module may be configured to detect an air quality indicator of the ambient environment. The IFD dust removal assembly 150 may be configured to be switched between the purge position and the non-purge position by the drive device 140 based on the air quality indicator of the surrounding environment: if the air quality index of the surrounding environment is greater than or equal to a predetermined threshold value, the IFD dust removal assembly 150 is switched to the purification position, and the ion emission module 154 and the IFD dust removal module 151 start to operate, that is, the ion emission module 154 starts to emit free ions to the surrounding environment, so that particles in the surrounding environment are charged, and the IFD dust removal module 151 starts to adsorb the charged particles in the surrounding environment; if the air quality index of the surrounding environment is lower than the predetermined threshold, the IFD dust removal assembly 150 switches to the non-purification position, and the ion emission module 154 and the IFD dust removal module 151 stop working, that is, the ion emission module 154 stops emitting free ions to the surrounding environment, and the IFD dust removal module 151 stops adsorbing charged particles in the surrounding environment.

FIG. 4 is a schematic block diagram of a drive device 140 and an IFD dust extraction assembly 150 in accordance with one embodiment of the present invention; FIG. 5 is a schematic structural view of the driving device 140 in FIG. 4; FIG. 6 is a schematic block diagram of the drive 140 of FIG. 5 with the side cover 147 removed to illustrate the gearing of the drive 140; fig. 7 is a schematic exploded view of the driving device 140 of fig. 5. Referring to fig. 4-7, in particular, in some preferred embodiments, each drive device 140 may include: a gear 142 and an arc-shaped rack 143, a link 145, a rail assembly, and a motor 141. Arc-shaped rack 143 may be configured to engage gear 142, and linkage 145 may be configured to be rotatably coupled to arc-shaped rack 143 at a first end and to be rotatably coupled to IFD dust extraction assembly 150 at a second end, such that IFD dust extraction assembly 150 is driven by gear 142 and is moved by linkage 145. The rail assembly may be secured to the lateral ends of the housing 120 to limit the path of movement of the arcuate rack 143 and the IFD dust extraction assembly 150. A motor 141 may be disposed on the housing 120 and an output shaft thereof may be disposed in driving connection with the gear 142 to power rotation of the gear 142. The motor 141 may be configured to output two opposing driving forces to drive the IFD dust removal assembly 150 between the purge position and the non-purge position.

In some preferred embodiments, the rail assembly may include a base 146 and a side cover 147. The base 146 may be disposed at a lateral end of the cover case 120. The side cover 147 may be snapped to a surface of the base 146 remote from the lateral end where the base 146 is disposed, and the side cover 147 and the base 146 define an arcuate guide slot 146-1 for mating with the arcuate rack 143 and a placement location for placing the gear 142. The link 145 may be disposed in the arc-shaped guide groove 146-1. In the illustrated embodiment, the rest position is disposed below the arcuate guide slot 146-1. In other embodiments, the placement locations may be disposed above the arcuate guide slots 146-1. An output shaft of the motor 141 may be disposed to be drivingly connected to the gear 142 through the base 146 to drive the arc-shaped rack 143 to move along the extending direction of the arc-shaped guide groove 146-1.

The surface of the side cover 147 remote from the base 146 may be formed with an arcuate guide track 147-1 to limit the path of movement of the IFD dust extraction assembly 150. Arcuate guide 147-1 may be configured to communicate with arcuate guide slot 146-1 to facilitate pivotal connection of linkage 145 to IFD dust extraction assembly 150. Specifically, the arcuate guide 147-1 may include a first arcuate section 147-1-1 and a second arcuate section 147-1-2 connected to the first arcuate section 147-1-1, the first arcuate section 147-1-1 and the second arcuate section 147-1-2 have different curvatures, that is, the first arcuate section 147-1-1 and the second arcuate section 147-1-2 have different degrees of curvature, thereby forming an irregularly shaped arcuate guide 147-1, the first arcuate section 147-1-1 may be located at a position where a rim of a lateral side end of the casing 120 corresponds to the air inlet 121, and the second arcuate section 147-1-2 extends forward and downward to an inner side of the panel 130. The arcuate guide slot 146-1 may also extend to the inside of the panel 130 and the second arcuate segment 147-1-2 may be located outside of the arcuate guide slot 146-1, i.e., the second arcuate segment 147-1-2 is closer to the panel 130 than the arcuate guide slot 146-1 is located.

The motor 141 drives the arc-shaped rack 143 to slide along the arc-shaped guide groove 146-1 through the gear 142, the connecting rod 145 slides along the arc-shaped rack 143 in the sliding process of the arc-shaped rack 143 and rotates relative to the arc-shaped rack 143, and the IFD dust removing assembly 150 is driven by the connecting rod 145 and moves along the irregularly-shaped arc-shaped guide rail 147-1, so that the IFD dust removing assembly 150 is switched between a purification position and a non-purification position.

Fig. 8 is a sectional view of an indoor unit 100 according to an embodiment of the present invention. Referring to fig. 8, in order to facilitate clear and intuitive understanding of the IFD dust removing assembly 150 driven by the arc rack 143 and to adopt the different points between the scheme of providing a sliding track for the IFD dust removing assembly 150 by the arc rack 143 and the scheme of driving the IFD dust removing assembly 150 by the arc rack 143 through the connecting rod 145 to cooperate with the movement of the arc guide 147-1 with an irregular shape, a in fig. 8 is a path of the arc guide 147-1 with an irregular shape formed by connecting a first arc segment 147-1-1 and a second arc segment 147-1-2 with a different arc from the first arc segment 147-1-1, B is a path of the arc guide 147-1 with a regular shape, and the guide with an irregular shape is located outside the arc guide 147-1.

Compared with the scheme that the IFD dust removal assembly 150 is directly driven by the arc-shaped rack 143 and the arc-shaped guide rail 147-1 is adopted to provide a sliding track for the IFD dust removal assembly 150, the connecting rod 145 drives the IFD dust removal assembly 150 to occupy a smaller space in cooperation with the movement of the arc-shaped guide rail 147-1 with an irregular shape, so that the internal space of the indoor unit 100 can be saved, the size of the indoor unit 100 does not need to be increased, and when the driving device 140 and the IFD dust removal assembly 150 are arranged, a sufficient space can be provided for the arrangement of the heat exchanger 160 of the indoor unit, the fan 170 of the indoor unit.

In some embodiments, the base 146 may have an escape hole penetrating through the base 146 and extending in a lateral direction of the indoor unit 100, and the output shaft of the motor 141 may be disposed to be drivingly connected to the gear 142 through the escape hole. The base 146 may be secured to the lateral end of the housing 120 by a threaded connection, welding, snap fit, or the like. The motor 141 may be mounted on the base 146. In some embodiments, the motor 141 may be mounted to the base 146 via threaded fasteners to facilitate installation and maintenance of the motor 141. The base 146 may have a screw hole extending in a lateral direction of the indoor unit 100, the motor 141 may be provided with a lug having a mounting hole, and a screw fastener may be provided to be screwed with the screw hole of the base 146 through the screw hole of the motor 141 to fix the motor 141 to the base 146. The threaded hole is preferably provided at the periphery of the relief hole.

The clearance hole of the base 146 may be matched with the placement position of the side cover 147 to form a space for accommodating the gear 142. The top surface of the base 146 may be provided with a catch 146-2, and the top surface of the side cover 147 may be provided with a catch groove 147-2 that mates with the catch 146-2 to snap the side cover 147 onto the base 146 and facilitate disassembly and maintenance of the various components of the rail assembly. The base 146 may further have positioning columns 146-3 extending in the lateral direction of the indoor unit 100 toward the side covers 147, the side covers 147 may further have positioning holes 147-3 extending in the lateral direction of the indoor unit 100 toward the base 146, and the positioning holes 147-3 are provided to be fitted with the positioning columns 146-3 to facilitate positioning and installation of the side covers 147.

The surface of the base 146 facing the side cover 147 may be formed with an arc-shaped groove, and a side of the arc-shaped rack 143 adjacent to the base 146 may be further formed with a plurality of rollers 144. In the present invention, the number of the rollers 144 may be two, three, or more than three. The plurality of rollers 144 may be disposed in the arc-shaped groove and roll in the arc-shaped groove along with the movement of the arc-shaped rack 143 to guide the moving direction of the arc-shaped rack 143, so as to improve the stability of the movement of the arc-shaped rack 143 along the arc-shaped guide slot 146-1, thereby improving the stability of the movement of the IFD dust removing assembly 150.

In some embodiments, the IFD dust extraction assembly 150 may also include at least one mounting bracket 152. One end of the at least one mounting bracket 152 may be configured to be rotatably coupled to the connecting rods 145 of the at least one driving device 140, respectively, and the other end may be configured to be slidably engaged with the arc-shaped guide 147-1. The mounting bracket 152 may be provided with a first engaging groove, which is configured to engage with a transverse end of the IFD dust removal module 151, so as to facilitate cleaning of the IFD dust removal module 151 and prevent the IFD dust removal module 151 from being damaged due to direct rotation of the IFD dust removal module 151 with the connecting rod 145. In the illustrated embodiment, the driving device 140 and the mounting frames 152 are two in number, and the two mounting frames 152 may be oppositely disposed at the ends of the IFD dust removal module 151 at both lateral ends and may be clamped with the IFD dust removal module 151 through first clamping grooves, that is, the first clamping grooves of the two mounting frames 152, which are respectively clamped with the ends of the IFD dust removal module 151 at both lateral ends, are oppositely disposed.

In some preferred embodiments, the IFD dust removal module 151 may be curved. The first locking groove of the mounting bracket 152 may be configured to match the shape of the IFD dust removal module 151 to facilitate installation of the IFD dust removal module 151. The size of the IFD dust removal module 151 may be determined according to the size of the air inlet 121 and the inner space of the indoor unit 100.

In the present invention, the number of the IFD dust removing modules 151 in the IFD dust removing assembly 150 may be one or more. When the number of the IFD dust removing modules 151 is plural, the plural IFD dust removing modules 151 may be fixedly connected by a coupling member. The binder may have two second slots disposed opposite to each other, and two adjacent IFD dust removal modules 151 may be respectively configured to be fastened to the two slots, so as to be combined and fixed. In some preferred embodiments, the two second slots of each coupling member may be disposed in communication with each other and abut against the two IFD dust removal modules 151 engaged with the coupling member to ensure sufficient purification of the air flow entering the indoor unit 100. The IFD dust extraction assembly 150 may also include two cross bars 153 extending in the cross direction. The cross bar 153 may be configured to be fixedly connected to the plurality of mounting brackets 152, so as to ensure that the plurality of mounting brackets 152 move synchronously, thereby improving the stability of the IFD dust removal module 151 in moving.

The guide rail assembly can be provided with a first wire passing hole penetrating through the guide rail assembly along the transverse direction, the mounting frame 152 can be provided with a second wire passing hole 155 penetrating through the mounting frame 152 along the transverse direction, an electric connecting wire for supplying power to the IFD dust removal module 151 can be led out from the first wire passing hole, and is electrically connected with the IFD dust removal module 151 through the second wire passing hole 155, so that the IFD dust removal module 151 can be prevented from being damaged due to interference with other components of the indoor unit 100 in the moving process. As will be understood by those skilled in the art, the connection of the IFD dust removal module 151 and the ion emission module 154 to the power supply circuit of the indoor unit 100 is easy to implement.

In particular, the first wire passing hole may have an axis that is spaced apart from the axis of the second wire passing hole 155 when the IFD dust removal module 151 is in the purging position and is spaced apart from the axis of the second wire passing hole 155 when the IFD dust removal module 151 is in the non-purging position, so that the electrical wires for supplying power to the IFD dust removal module 151 are effectively prevented from being damaged by being excessively pulled or bent during the movement of the IFD dust removal module 151. In some preferred embodiments, the axis of the second thread passing hole 155 may be disposed to coincide with the center line of the mounting block in the lateral direction of the indoor unit 100. The electric connection line for supplying power to the IFD dust removal module 151 may be fixed in the first and second wire passing holes 155 by gluing, so as to prevent a part of the electric connection line in the first and second wire passing holes 155 from moving along the axis of the wire passing hole in which the electric connection line is located, thereby further reducing the damage rate of the electric connection line.

Fig. 9 is a schematic block diagram of protective case 148 according to one embodiment of the present invention. Referring to fig. 9, in particular, the indoor unit 100 of the present invention is further provided with a protective case 148 for preventing damage to the electrical wiring supplying the IFD dust removal module 151. The protective case 148 may include a pivot part 148-1 extending in a lateral direction of the indoor unit 100, and a swing part 148-2 extending perpendicular to the pivot part 148-1 from an end of the pivot part 148-1 near the IFD dust removing assembly 150. The pivot portion 148-1 is pivotably fixed to the first wire passing hole. The protective housing 148 may have a passage extending from one end surface to the other end surface thereof, and an electrical connection line for supplying power to the IFD dust removal module 151 may be led in from the passage opening of the pivot portion 148-1 and led out from the passage opening of the swing portion 148-2 to the second wire passing hole 155, so as to prevent the electrical connection line between the first wire passing hole and the second wire passing hole 155 from rotating around the axis of the first wire passing hole and being damaged by friction with the sliding rail assembly during the movement of the IFD dust removal assembly 150. In some embodiments, the cross-section of the channel may be circular. The diameter of the passageway may be equal to the diameter of the electrical wiring that powers the IFD dust extraction module 151.

In some preferred embodiments, the end surface of the pivot portion 148-1 may extend beyond at least two spaced snap fit blocks. The distal end of each catch block is formed with a wedge-shaped projection 148-3 extending away from the central axis of pivot 148-1. The inner surface of each gripping block facing the central axis of pivot 148-1 lies on a cylindrical surface and the radius of the cylindrical surface may be equal to the radius of the channel of the protective housing 148 to facilitate installation of electrical wiring for powering the IFD dust extraction module 151. Each snap-fit block passes through the first wire passing hole, and each wedge-shaped protrusion 148-3 snaps onto the surface of the rail assembly away from the IFD dust extraction assembly 150 (the surface of the base 146 away from the IFD dust extraction assembly 150) to facilitate installation of the protective housing 148.

In some preferred embodiments, the swinging portion 148-2 may be formed with a linear opening 148-4 extending along an extending direction thereof to facilitate the drawing of the electrical wiring. The opening size of the linear opening 148-4 may be smaller than 1/4-1/3 circumferences of the passage of the protective case 148, i.e., the opening size of the linear opening 148-4 is smaller than the diameter of the electrical wiring supplying the IFD dust removal module 151, so as to facilitate the fixing of the electrical wiring.

Because the air resistance of the air flow generated by the indoor unit fan 170 is obviously different when the IFD dust removing assembly 150 is in the purifying position and the non-purifying position, after entering the purifying mode, the air flow is filtered, which inevitably results in the attenuation of the heat exchange effect of the indoor unit heat exchanger 160, and the high load problem is easy to occur, and the corresponding control can be performed according to the operation mode of the air conditioner, so that the influence of the normal refrigeration or heating function of the air conditioner is reduced when the air conditioner is purified.

The air conditioner to which the indoor unit 100 of the present invention is applied further includes a refrigeration system, a pipe temperature sensor, and a controller. The controller can control the driving device 140 and the indoor unit fan 170, the compressor and the throttling device in the refrigeration system correspondingly. The tube temperature sensor is disposed at the indoor unit heat exchanger 160, and is configured to measure a temperature of a refrigerant pipeline of the indoor unit heat exchanger 160. In this embodiment, the compressor uses a variable frequency compressor, and the throttle device uses an electronic expansion valve with an adjustable opening degree.

In some embodiments, after the IFD dust removing assembly 150 enters the cleaning mode, a target tube temperature of the heat exchanger tube temperature of the indoor unit 100 may be set, and the heat exchanger tube temperature of the indoor unit 100 may be detected in real time, and the cooling system of the air conditioner may be feedback controlled according to a temperature difference between the detected tube temperature and the target tube temperature.

Specifically, when the air conditioner operates in a cooling mode, if the temperature of the heat exchanger tube after purification is lower than the target tube temperature and does not exceed the first temperature difference threshold, the feedback control can be performed on the indoor unit fan 170 according to the difference, and the lower the temperature of the heat exchanger tube is, the faster the fan rotation speed of the indoor unit 100 is. If the increase of the rotating speed of the indoor unit fan 170 cannot ensure that the temperature difference between the heat exchanger tube temperature and the target tube temperature is within the first temperature difference threshold, the opening degree of the throttling device of the compression refrigeration cycle is increased. If the temperature of the heat exchanger tube can not be guaranteed to be maintained within the second temperature difference threshold value with the target tube temperature, the frequency of the compressor is reduced, and therefore the situation that the temperature of the indoor unit heat exchanger 160 is too low and high load occurs is avoided.

When the air conditioner performs heating operation, if the temperature of the heat exchanger tube after purification is higher than the target tube temperature and does not exceed the first temperature difference threshold, the fan of the indoor unit 100 can be subjected to feedback control according to the difference, and the higher the temperature of the heat exchanger tube is, the faster the fan rotating speed of the indoor unit 100 is. If the increase of the rotating speed of the indoor unit fan 170 cannot ensure that the temperature difference between the heat exchanger tube temperature and the target tube temperature is within the first temperature difference threshold, the opening degree of the throttling device of the compression refrigeration cycle is increased. If the temperature difference between the heat exchanger tube temperature and the target tube temperature is not guaranteed to be within the second temperature difference threshold, the frequency of the compressor is reduced, and therefore the high load caused by the overhigh temperature of the indoor unit heat exchanger 160 is prevented.

The first temperature difference threshold and the second temperature difference threshold may be configured according to the specification and the use requirement of the indoor unit heat exchanger 160, for example, the first temperature difference threshold is set to plus or minus 3 degrees celsius, and the second temperature difference threshold is set to plus or minus 5 degrees celsius.

According to the invention, after the IFD dust removal assembly 150 enters the purification mode, the target pipe temperature in the purification mode is set according to the pipe temperature of the heat exchanger of the indoor unit 100 when the IFD dust removal assembly enters the purification mode, and the feedback control is carried out on the refrigeration system of the air conditioner, so that the problem of high load caused by abnormal load of the refrigeration system due to the reduction of air volume can be avoided.

In some embodiments, the indoor unit heat exchanger 160 may have multiple heat exchange areas and at least one electronic expansion valve. The indoor unit heat exchanger 160 may be configured to adjust the opening degree of the electronic expansion valve according to the position of the IFD dust removal assembly 150 to control the refrigerant input amount into the plurality of heat exchange areas.

Specifically, as the IFD dust extraction assembly 150 moves within the cabinet, the IFD dust extraction assembly 150 is at a relatively close vertical distance from the surface of the indoor unit heat exchanger 160. Therefore, when the IFD dust removing assembly 150 moves to block a part of the indoor unit heat exchanger 160, a relatively large wind resistance is generated in the local area, which affects the heat exchange efficiency of the local area. Therefore, the indoor heat exchanger 160 generates local temperature difference, and is easy to have the problems of condensation or freezing and the like, so that the heat exchange capability of the indoor heat exchanger is weakened.

Prior to the present invention, it was common for those skilled in the art to reduce the overall frequency of the indoor heat exchanger 160 to smooth out the problem of uneven heat exchange efficiency. However, this is at the expense of the cooling capacity of the indoor unit 100, which seriously affects the use effect of the user. The invention creatively divides the indoor heat exchanger 160 into a plurality of heat exchange areas and adjusts the input quantity of the refrigerant in each heat exchange area according to the different air quantities flowing through the heat exchange areas. Therefore, the integral indoor unit 100 has high heat exchange efficiency, the phenomenon that the local temperature difference of the indoor unit heat exchanger 160 is too large is avoided, the running stability of the indoor unit heat exchanger 160 is enhanced, and better use experience is provided for users.

In some embodiments of the present invention, the number of the plurality of heat exchange regions may be two. The two heat exchange areas are a first heat exchange area located below the air inlet 121 and a second heat exchange area located below the front side of the front edge of the air inlet 121. The indoor unit heat exchanger 160 may have a main pipe for guiding the inflow of the refrigerant and a first branch pipe and a second branch pipe for respectively conveying the refrigerant to the first heat exchange area and the second heat exchange area. In the illustrated embodiment, the indoor unit heat exchanger 160 may include a first heat exchange section horizontally disposed below the air intake 121, a second heat exchange section extending from a front end of the first heat exchange section to a lower front side, and a third heat exchange section vertically extending downward from a lower end of the second heat exchange section. The first flow dividing pipeline and the second flow dividing pipeline are respectively connected into the first heat exchange section and the third heat exchange section from the second heat exchange section, namely the first heat exchange area is composed of the first heat exchange section and part of the second heat exchange section, and the second heat exchange area is composed of the third heat exchange section and part of the second heat exchange section. When the IFD dust removal assembly 150 is in the cleaning mode, the IFD dust removal assembly 150 moves upstream of the air intake path of the first heat exchange area; when the IFD dust extraction assembly 150 is in the non-cleaning mode, the IFD dust extraction assembly 150 moves into the air intake path upstream of the second heat exchange area (the location between the panel 130 and the housing 120).

In some preferred embodiments, the number of electronic expansion valves may be one. Since the first heat exchange area below the air inlet 121 is more likely to contact more ambient air than the second heat exchange area located at the front side of the interior of the casing, and the heat exchange efficiency is relatively high, the electronic expansion valve is preferably disposed at the input end of the second branch pipeline for conveying the refrigerant to the second heat exchange area, so as to pre-limit the input amount of the refrigerant entering the second heat exchange area, and to prevent or properly limit the imbalance of the heat exchange effect that may be generated by the indoor unit heat exchanger 160.

Specifically, the electronic expansion valve may be configured to increase its opening degree to a first opening degree when the IFD dust removal assembly 150 is in the purification mode; when the IFD dust removal assembly 150 is in the non-cleaning mode, the electronic expansion valve decreases its opening to a second opening that is less than the first opening. That is, when the IFD dust removing assembly 150 is in the cleaning mode, the air resistance thereof reduces the airflow flowing through the first heat exchanging region, so as to reduce the heat exchanging amount of the refrigerant in the first heat exchanging region. At the moment, the opening degree of the electronic expansion valve is increased, so that the refrigerant flowing into the second heat exchange area is increased, and the refrigerant flowing into the first heat exchange area is reduced; when the IFD dust removing assembly 150 is in the non-cleaning mode, the air resistance thereof reduces the airflow flowing through the second heat exchange area, thereby reducing the heat exchange amount of the refrigerant in the second heat exchange area. At this time, the opening degree of the electronic expansion valve is reduced, so that the refrigerant flowing into the second heat exchange area is reduced, and the refrigerant flowing into the first heat exchange area is increased. Therefore, the heat exchange pressure and the heat exchange efficiency of the first heat exchange area and the second heat exchange area are adaptive to the air volume flowing through the first heat exchange area and the second heat exchange area, and the heat exchange effects of the first heat exchange area and the second heat exchange area are balanced. In this embodiment, specific values of the first opening degree and the second opening degree may be set according to an actual use condition of the indoor unit 100. In some preferred embodiments, the first opening degree may be any opening degree between 70% and 80%, such as 70%, 75%, or 80%. The second opening degree may be any opening degree between 15% and 50%, for example, 15%, 25%, 40%, or 50%.

In a further preferred embodiment, a first temperature sensor and a second temperature sensor are respectively arranged on the outer surfaces of the first heat exchange area and the second heat exchange area to respectively detect the first surface temperature of the first heat exchange area and the second surface temperature of the second heat exchange area. The electronic expansion valve may be configured to increase or decrease the opening degree thereof by a third opening degree when the difference between the first surface temperature and the second surface temperature is greater than a preset temperature difference. In the present embodiment, the temperature difference between the first surface temperature and the second surface temperature may be further set according to the performance of the indoor unit heat exchanger 160, the operating state of the indoor unit 100, and the like. In some preferred embodiments, the temperature difference may be any temperature value between 0.5 ℃ and 2 ℃, such as 0.5 ℃, 1 ℃, 1.5 ℃, 2 ℃, and the like. The third opening degree may be any value between 1% and 10%. For example, it may be 1%, 4%, 7%, 10%, or the like.

In the event that the difference between the first surface temperature and the second surface temperature is greater than the temperature difference, the electronic expansion valve is configured to increase the opening value when the first surface temperature is less than the second surface temperature; the electronic expansion valve decreases the opening value when the first surface temperature is greater than the second surface temperature. That is, after the opening degree of the electronic expansion valve is primarily adjusted according to the moving position of the IFD dust removing assembly 150, in the working process of the indoor unit heat exchanger 160, the heat exchange effect of the first heat exchange area and the second heat exchange area may be slightly different due to the influence of factors such as the surrounding environment of the indoor unit 100, and the surface temperature of the indoor unit heat exchanger 160 is unbalanced. At this time, the opening degree of the electronic expansion valve is adjusted to a small extent according to the surface temperature difference of each heat exchange area of the indoor heat exchanger 160, so that the input amount of the cooling medium in the indoor heat exchanger 160 can be regulated in real time, and the local temperature difference on the indoor heat exchanger 160 can be eliminated rapidly.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims

1. An indoor unit of an air conditioner, comprising:

an ion emission module configured to charge particles in a surrounding environment;

the IFD dedusting assembly comprises an IFD dedusting module, a first filter module and a second filter module, wherein the IFD dedusting module is configured to adsorb charged particles in the surrounding environment so as to purify air; and

at least one driving device, which is arranged to be partially connected with the IFD dust removal assembly so as to drive the IFD dust removal assembly to move; the IFD dust removal assembly is driven by the driving device to switch between a purification position for shielding the air inlet and a non-purification position for moving out of the air inlet; wherein each of the driving devices includes:

the gear and the arc-shaped rack are arranged to be meshed with the gear;

the guide rail assembly is arranged at the transverse end part of the housing and is provided with an arc-shaped guide rail so as to limit the movement paths of the arc-shaped rack and the IFD dust removal assembly; and

the motor is arranged on the housing, and an output shaft of the motor is in driving connection with the gear to provide power for the rotation of the gear; and is

The IFD dust removal assembly further comprises at least one mounting frame, one end of the mounting frame is respectively and rotatably connected with the connecting rod of the at least one driving device, and the other end of the mounting frame is respectively matched with the arc-shaped guide rail; the mounting frame is provided with a first clamping groove, and the first clamping groove is clamped with the transverse end part of the IFD dust removal module so as to prevent the IFD dust removal module from being damaged;

the guide rail assembly is provided with a first wire passing hole which penetrates through the guide rail assembly along the transverse direction; the mounting frame is provided with a second wire passing hole which penetrates through the mounting frame along the transverse direction, and an electric wire for supplying power to the IFD dust removal module is led out from the first wire passing hole and is electrically connected with the IFD dust removal module through the second wire passing hole; and the first axis of crossing the line hole sets up to, its with when IFD dust removal module is located the purification position the distance of the axis of line hole is crossed to the second, and its with when IFD dust removal module is located the non-purification position the distance of the axis of line hole is crossed to the second equals to reduce the spoilage of electricity line.

2. The indoor unit of an air conditioner according to claim 1, wherein the rail assembly includes:

a base disposed at a lateral end of the housing; and

the side cover is far away from the surface of base and is seted up the arc guide rail to the restriction IFD dust removal subassembly's motion path.

3. The indoor unit of air conditioner according to claim 1, wherein

The axis of the second wire passing hole is overlapped with the central line of the installation frame in the transverse direction of the indoor unit, so that the damage rate of the electric connecting wire is reduced.

4. The indoor unit of an air conditioner according to claim 1, further comprising:

The pivot part is pivotally fixed on the first wire passing hole;

5. The indoor unit of air conditioner according to claim 4, wherein

At least two clamping blocks arranged at intervals extend from the surface of the end part of the pivoting part, a wedge-shaped bulge extending towards the direction away from the central axis of the pivoting part is formed at the tail end of each clamping block, and each wedge-shaped bulge is buckled on the surface, away from the IFD dust removal assembly, of the guide rail assembly so as to facilitate the installation of the protective shell; and/or

The swinging part is provided with a linear opening extending along the extending direction of the swinging part, and the opening size of the linear opening is smaller than the 1/3 circumference of the channel, so that the electric connecting wire can be conveniently led out and fixed.

6. The indoor unit of air conditioner according to claim 1, wherein

The IFD dust removal assembly is configured to be driven by the driving device to switch between the purification position and the non-purification position according to the air quality index of the surrounding environment;

7. The indoor unit of air conditioner according to claim 1, wherein

The ion emission module is arranged on the framework; and is