CN218884126U - Indoor machine of air conditioner - Google Patents

Abstract

The utility model discloses an air conditioner indoor unit, include: the shell is provided with an indoor air inlet and an indoor air outlet; the heat exchanger is arranged inside the shell; the heat exchange fan is arranged inside the shell; plasma generating device establishes on the casing, and plasma generating device includes: the negative ion generator and the positive ion generator are connected in parallel, the negative ion generator is provided with a plurality of negative ion emitting electrodes, the positive ion generator is provided with a plurality of positive ion emitting electrodes, and the negative ion emitting electrodes and the positive ion emitting electrodes are arranged at the indoor air inlet at intervals so that generated negative ions and/or positive ions are diffused towards the inner direction of the machine shell; the metal filter screen is arranged at the indoor air inlet, one end of the metal filter screen is electrically connected with the electric appliance box, the other end of the metal filter screen is grounded, the plasma generating device is electrically connected with the electric appliance box, and the metal filter screen and the plasma generating device are electrified to purify indoor air flow introduced by the indoor air inlet.

Description

Indoor machine of air conditioner

Technical Field

The utility model belongs to the technical field of the air conditioning technique and specifically relates to an air conditioner indoor unit is related to.

Background

At present, the ion technology is widely applied to purifiers and air conditioner indoor units, positive ions and negative ions generate ion clusters through high-voltage discharge for neutralization, the released energy can destroy the protein structure of bacteria, the sterilization effect is achieved, the negative ions can also be neutralized, gathered and settled with dust with positive charges in the air, the effects of settling particles and the like are achieved, and the freshness and health of indoor air can be effectively improved.

In the correlation technique, most positive, negative ion device is installed at air outlet or air outlet wind channel inboardly for a long time, and convenient positive, negative ion overflows and scatters the space, but can have black wall, electrostatic aggregation, particulate matter subsides the scheduling problem to dust gathering efficiency is relatively poor, and the collection dirt effect is not ideal.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an air conditioner, negative ion projecting pole and positive ion projecting pole are established at the air intake to with the metal filters ground connection of air intake department, make the dust of taking the negative electricity can gather the metal filters of zero potential fast on, the air that blows off is more fresh.

According to the utility model discloses air conditioner indoor unit, include: a casing provided with an indoor air inlet and an indoor air outlet; the heat exchanger is arranged inside the shell; the heat exchange fan is arranged in the shell, and heat exchange airflow formed by heat exchange of the heat exchanger is output from the indoor air outlet under the operation drive of the heat exchange fan; a plasma generating device disposed on the housing, the plasma generating device comprising: the negative ion generator and the positive ion generator are connected in parallel, the negative ion generator is provided with a plurality of negative ion emitting electrodes, the positive ion generator is provided with a plurality of positive ion emitting electrodes, and the negative ion emitting electrodes and the positive ion emitting electrodes are arranged at the indoor air inlet at intervals so that generated negative ions and/or positive ions are diffused towards the inner direction of the machine shell; metal filters sets up indoor air intake department, metal filters's one end and electrical apparatus box electricity are connected, just metal filters's the other end ground connection, plasma generating device with electrical apparatus box electricity is connected, with metal filters with plasma generating device circular telegram after purify by the indoor air current that indoor air intake introduced.

According to the utility model discloses air conditioner is through installing anion projecting pole and positive ion projecting pole in indoor air intake department for the air inlet direction of the excessive direction of ion for air conditioner, with the excessive direction of loosing of air-out opposite, can effectively solve the black wall problem that the air outlet dust gathering leads to, simultaneously, positive ion projecting pole and anion projecting pole are far away relatively apart from driving motor, can effectively avoid appearing electrostatic aggregation interference. The indoor unit of the air conditioner can independently control the positive ion generator and the negative ion generator, and when the positive ion generator and the negative ion generator are simultaneously started, the sterilization mode is operated, so that the negative ions generated by the positive ion emitter and the positive ions generated by the negative ion emitter can sterilize and disinfect air; when the anion generator is opened alone to the air conditioner indoor set, metal filters ground connection, metal filters is as zero potential face, and metal filters and anion emitter are adjacent to be set up, after opening anion generator, produce a large amount of anions and spread to indoor air intake department, thus, the dust of the negatively charged in the air current, when the granule passes through metal filters, metal filters can adsorb the dust granule fast, so that the dust granule of negative charge is by the metal filters electricity neutralization of the compact distribution, the efficiency is high, metal filters's collection dirt efficiency has been improved greatly, thereby can make the wind that blows off clean more fresh.

According to some embodiments of the present invention, further comprising: the air inlet grille is arranged at the indoor air inlet, the air inlet grille is provided with a plurality of negative ion emitting electrodes and a plurality of positive ion emitting electrodes, and the negative ion emitting electrodes and the positive ion emitting electrodes are arranged at intervals along the length direction and/or the width direction of the air inlet grille.

According to the utility model discloses a some embodiments, the anion projecting pole and/or the emission direction of positive ion projecting pole with the normal direction of indoor air intake sets up perpendicularly, and the orientation the central point of air-inlet grille puts.

According to the utility model discloses a some embodiments, the anion projecting pole sets up the air inlet grid is close to one side of casing front portion, the positive ion projecting pole sets up the anion projecting pole deviates from one side of casing front portion, and one the anion projecting pole and one the positive ion emitting is very a set of, and the multiunit is followed the length direction interval of air inlet grid sets up.

According to some embodiments of the invention, the negative ion emitter and the positive ion emitter each comprise: the distance between the tips of the emitting pins of the positive ion emitting electrodes and the tips of the emitting pins of the negative ion emitting electrodes in each group is a, and the a satisfies the relation: a is more than or equal to 10mm and less than or equal to 20mm.

According to some embodiments of the present invention, further comprising: and the high-voltage power supply is arranged on one side of the electric appliance box, one end of the high-voltage power supply is electrically connected with the electric appliance box, and the other end of the high-voltage power supply is electrically connected with the metal filter screen and the plasma generating device.

According to the utility model discloses a few embodiments, metal filters sets up in the casing and close on in indoor air intake department, just metal filters sets up the heat exchanger closes on one side of indoor air intake.

According to some embodiments of the present invention, further comprising: and the air quantity sensor is arranged between the metal filter screen and the heat exchanger and used for detecting the air inlet quantity at the metal filter screen.

According to some embodiments of the present invention, further comprising: the controller is configured to control the indoor unit of the air conditioner to send out a reminding signal to remind timely cleaning when the air volume value detected by the air volume sensor is determined to be lower than a preset air volume threshold value.

According to some embodiments of the invention, include: and the controller is electrically connected with the electric appliance box and is used for controlling the on-off control of the positive ion generator and/or the negative ion generator and/or the metal filter screen.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a first viewing angle of an indoor unit of an air conditioner according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a second viewing angle of an indoor unit of an air conditioner according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a third viewing angle of an indoor unit of an air conditioner according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a fourth viewing angle of an indoor unit of an air conditioner according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a fifth viewing angle of an indoor unit of an air conditioner according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a sixth viewing angle of an indoor unit of an air conditioner according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a seventh viewing angle of an indoor unit of an air conditioner according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of an eighth viewing angle of an indoor unit of an air conditioner according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a ninth viewing angle of an indoor unit of an air conditioner according to an embodiment of the present invention;

fig. 10 is a schematic view of an installation of an air intake grille and negative and positive ion emitters according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a negative ion emitter or a positive ion emitter according to an embodiment of the present invention.

Reference numerals:

100. an air conditioner indoor unit; 10. a housing; 11. an indoor air inlet; 12. an indoor air outlet; 20. a positive ion emitter; 30. a negative ion emitter; 31. a launching needle; 40. a metal filter screen; 50. an air inlet grille; 60. a high voltage power supply.

Detailed Description

Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.

An air conditioner indoor unit 100 according to an embodiment of the present invention will be described with reference to fig. 1 to 11.

As shown in fig. 1 to 10, an air conditioner indoor unit 100 includes: a casing 10, a heat exchanger, a heat exchange fan, a plasma generating device and a metal filter screen 40.

The casing 10 is provided with an indoor air inlet 11 and an indoor air outlet 12, the indoor air inlet 11 is used for introducing indoor air, and the indoor air outlet 12 is used for blowing out fresh air for cooling or heating.

And the heat exchanger and the heat exchange fan are both arranged in the shell 10, and heat exchange airflow formed by heat exchange of the heat exchanger is output by the indoor air outlet 12 under the operation drive of the heat exchange fan. Therefore, under the driving operation of the heat exchange fan, the air flow outside the casing 10, namely the indoor air flow, is introduced into the casing 10 through the indoor air inlet 11, forms the heat exchange air flow through the heat exchange of the heat exchanger, and is output from the indoor air outlet 12 under the operation of the heat exchange fan, so as to meet the air flow temperature required by a user. In addition, a heat exchange air duct is arranged in the heat exchanger, the heat exchange air duct is used for passing through heat exchange air, the heat exchange air duct corresponds to the heat exchanger, the heat exchange air duct is communicated with the indoor air outlet 12, air outside the casing 10 enters the heat exchange air duct 23, and the air passes through the heat exchanger and the heat exchange fan, so that the refrigerating and heating effects of the indoor unit 100 of the air conditioner can be realized.

Specifically, the air conditioner indoor unit 100 may be a wall-mounted air conditioner indoor unit, and the casing 10 includes a rear panel and a front panel, which are opposite to each other, the rear panel is used for being fixedly mounted on a wall, the front panel may be loaded with a display panel to display information such as an operating state of the air conditioner indoor unit and indoor temperature and humidity, and the front panel may also be loaded with function keys such as a power key. The space between the front panel and the rear panel forms an air duct, the air-conditioning indoor unit further comprises a top cover connected with the front panel and the rear panel, the top cover is arranged on the tops of the front panel and the rear panel, an indoor air inlet 11 is formed in the top cover, and the indoor air inlet 11 allows air to enter the air duct.

Further, the plasma generating apparatus is provided on the cabinet 10, and includes: the negative ion generator and the positive ion generator are connected in parallel, the negative ion generator is provided with a plurality of negative ion emitting electrodes 30, the positive ion generator is provided with a plurality of positive ion emitting electrodes 20, and the negative ion emitting electrodes 30 and the positive ion emitting electrodes 20 are arranged at the indoor air inlet 11 at intervals so that generated negative ions and/or positive ions can be diffused towards the inner direction of the machine shell 10.

Thus, the positive ion generator is used for generating positive ions, the negative ion generator is used for generating negative ions, and the positive ion emitter 20 in the positive ion generator and the negative ion emitter 30 in the negative ion generator are both arranged at the indoor air inlet 11, so that air is broken down for ionization through discharge of the positive ion emitter 20 and/or the negative ion emitter 30, and atoms after part of electrons in ionized air molecules are deprived and ionized gas-like substances, namely plasma or plasma, consisting of positive and negative ions generated after radicals are ionized. When the air sterilizer is operated, on one hand, the static electric field of the plasma decomposes and destroys bacteria with negative electricity, and bacteria and viruses losing electrons lose activity, thereby effectively improving the air sterilization and disinfection effect; on the other hand, can make dust or granule in the air electrified to adsorb on metal filters 40 more easily, effectively improve air dust collection effect, make to blow to indoor wind cleaner, efficiency is higher.

Compared with the positive and negative ions arranged at the air outlet of the air conditioner indoor unit 100, the ion overflow and dispersion direction in the invention is the air inlet direction of the air conditioner indoor unit 100, and is opposite to the air outlet overflow and dispersion direction, so that the problem of black wall caused by dust accumulation at the air outlet can be effectively solved, and the positive ion emitting electrode 20 and the negative ion emitting electrode 30 are relatively far away from the driving motor, so that electrostatic accumulation interference can be effectively avoided.

Moreover, the negative ion generator and the positive ion generator are connected in parallel, namely, the positive ion generator and the negative ion generator are controlled independently, and the functions of negative ion dust collection, positive ion sterilization and the like can be realized. Specifically, when the anion generator is independently turned on, dust which can have negative charges can be rapidly gathered on the metal filter screen 40, so that blown air is fresher and cleaner; when the negative ion generator and the positive ion generator are simultaneously started, the generated positive ions and negative ions can effectively kill microbes such as bacteria and viruses in the air, and the efficient sterilization effect is realized.

In addition, the metal filter screen 40 is disposed at the indoor air inlet 11, one end of the metal filter screen 40 is electrically connected to the electrical box, the other end of the metal filter screen 40 is grounded, and the plasma generating device is electrically connected to the electrical box to purify the indoor air flow introduced from the indoor air inlet 11 after the metal filter screen 40 and the plasma generating device are powered on.

Thus, when the indoor unit 100 of the air conditioner drives the indoor air to flow and performs a predetermined adjustment on the flowing air, such as purifying the air, heating or cooling the air, dehumidifying or humidifying the air, etc., the air needs to continuously pass through the casing 10 via the indoor air inlet 11 and the indoor air outlet 12, dust and particles in the air are easily accumulated on the metal filter screen 40, and when the amount of the dust or particles accumulated in the metal filter screen 40 reaches a certain amount, the metal filter screen 40 needs to be cleaned or replaced in time to reduce the air intake resistance of the metal filter screen 40 to the indoor unit 100 of the air conditioner, and ensure that the metal filter screen 40 has a better air purifying capability again.

And, metal filters 40 are as the large tracts of land conductor, connect one end and the electrical apparatus box electricity of metal filters 40, the other end ground connection to make metal filters 40 be zero potential face, and metal filters 40 and anion emitter 30 are adjacent to be set up, after opening anion generator, produce a large amount of anions and spread to indoor air intake 11 department, like this, the dust of the negative charge in the air current, when granule passes through metal filters 40, can make the dust granule of negative charge carry out the electricity by the metal filters 40 of the dense distribution and neutralize, thereby can effectively improve dust collecting effect. Particularly, once dust particles with negative charges pass through the metal filter screen 40, the metal filter screen 40 serving as a zero potential surface can quickly adsorb the dust particles, the efficiency is extremely high, the dust collection efficiency of the metal filter screen 40 is greatly improved, and therefore blown air can be cleaner and fresher. In the invention, the metal filter screen 40 can be made of stainless steel, and the stainless steel has the characteristics of difficult rustiness and easy cleaning, so that the metal filter screen is convenient for a user to clean.

From this, through installing anion emitter 30 and positive ion emitter 20 in indoor air intake 11 department for the excessive direction of scattering of ion is the air inlet direction of air conditioner indoor unit 100, and is opposite with the excessive direction of scattering of air-out, can effectively solve the black wall problem that the air outlet dust gathering leads to, and simultaneously, positive ion emitter 20 and anion emitter 30 are far away relatively apart from driving motor, can effectively avoid appearing static gathering interference. Moreover, the air conditioner indoor unit 100 can independently control the positive ion generator and the negative ion generator, and when the positive ion generator and the negative ion generator are simultaneously started, the sterilization mode is operated, so that the negative ions generated by the positive ion emitter 20 and the positive ions generated by the negative ion emitter 30 can sterilize and disinfect air; when the anion generator is independently started in the indoor unit 100 of the air conditioner, the metal filter screen 40 is grounded, the metal filter screen 40 is used as a zero potential surface, the metal filter screen 40 and the anion emitter 30 are arranged in a proximity mode, after the anion generator is started, a large amount of anions are generated to be diffused to the indoor air inlet 11, therefore, dust with negative electricity in air flow can be quickly adsorbed by the metal filter screen 40 when particles pass through the metal filter screen 40, the dust particles with negative charges can be quickly neutralized by the metal filter screen 40 which is densely distributed, the efficiency is extremely high, the dust collection efficiency of the metal filter screen 40 is greatly improved, and blown air can be cleaner and fresher.

As shown in fig. 1 to 5, the indoor unit 100 of the air conditioner further includes: the air inlet grille 50 is arranged at the indoor air inlet 11, and the air inlet grille 50 is provided with a plurality of negative ion emitting electrodes 30 and a plurality of positive ion emitting electrodes 20 which are arranged at intervals along the length direction and/or the width direction of the air inlet grille 50. Thus, the air inlet grille 50 is used for covering the indoor air inlet 11, the metal filter screen 40 is installed at the indoor air inlet 11, and the air enters the casing 10 after passing through the metal filter screen 40. And, arrange a plurality of negative ion emitter 30 and positive ion emitter 20 on air-inlet grille 50 to set up along the length direction and the width direction interval of air-inlet grille 50, like this, can produce a large amount of positive ions and/or negative ions, can high-efficient kill microorganism such as bacterium, virus in the air, and adsorb the dust particle in the air, thereby can improve air purification efficiency better.

The air inlet grille 50 is detachably mounted at the indoor air inlet 11, and when the metal filter screen 40 collects too much dust and the metal filter screen 40 needs to be detached, the air inlet grille 50 is detached from the casing 10 first, and then the metal filter screen 40 is further detached.

As shown in fig. 10, the emission direction of the negative ion emitter 30 and/or the positive ion emitter 20 is perpendicular to the normal direction of the indoor air inlet 11 and faces the center position of the air inlet grille 50. Therefore, ions emitted by the negative ion emitter 30 and/or the positive ion emitter 20 are in the same plane as the indoor air inlet 11 and face the center of the air inlet grille 50, so that dust is gathered towards the middle and is convenient to clean, the dust is not gathered to the corner, and the negative ion emitter 30 and the positive ion emitter 20 are installed in parallel to the grille, so that the emitting tip can be prevented from accidentally injuring a user, and meanwhile, the effect of protecting the negative ion emitter 30 and the positive ion emitter 20 is achieved.

Wherein, the positive ion emitter 20 is disposed on one side of the air-inlet grille 50 close to the front of the casing 10, the negative ion emitter 30 is disposed on one side of the positive ion emitter 20 away from the front of the casing 10, and one negative ion emitter 30 and one positive ion emitter 20 are in a group, and the groups are disposed at intervals along the length direction of the air-inlet grille 50. Thus, the plurality of positive ion emitters 20 are located on one side of the air inlet grille 50 close to the front of the casing 10, the negative ion emitter 30 is located on one side of the positive ion emitter 20 away from the front of the casing 10, and one negative ion emitter 30 and one positive ion emitter 20 form one group, so that the groups are arranged at intervals along the length direction of the air inlet grille 50, and the serial connection among the plurality of negative ion emitters 30 and the serial connection among the plurality of positive ions are facilitated. When the anion generator is independently turned on in the indoor unit 100 of the air conditioner, the dust collecting mode is operated, and when the anion generator and the positive ion generator are simultaneously turned on, the sterilizing mode is operated, so that the anion generator and the positive ion generator are conveniently controlled and installed.

In the present embodiment, one negative ion emitter 30 and one positive ion emitter 20 are a group, and can be divided into six or eight groups, and the six or eight groups are disposed at the center of the air inlet grille 50, so that the whole indoor air inlet 11 can be completely covered, the dust entering from each position can be charged, and the six groups are preferred, and the overlapping of electric fields in partial areas can be avoided, thereby affecting the ion generation amount.

Also, the negative ion emitter 30 and the positive ion emitter 20 each include: the distance between the tips of the emitter pins 31 of the positive ion emitter 20 and the tips of the emitter pins 31 of the negative ion emitter 30 in each group is a, and a satisfies the relation: a is more than or equal to 10mm and less than or equal to 20mm.

Thus, the negative ion emitter 30 and the positive ion emitter 20 in one group are adjacently arranged along the width direction of the air inlet grille 50, the distance between the needle point 31 of the positive ion emitter 20 and the needle point 31 of the negative ion emitter 30 can be controlled within 10 mm-20 mm, and the arrangement based on the distance range can enable positive and negative ions to be better neutralized and release energy. The optimal thickness is 13mm, which can effectively improve the sterilization and dust collection effects of positive and negative ions.

The emitting needle 31 may be made of a stainless steel needle or a carbon brush, but since the carbon brush covers the surface due to dust deposition for a long time, the amount of ions generated is reduced, and the efficiency is affected, while the influence of the stainless steel needle is small, the stainless steel needle is preferred. In addition, according to the principle of the point discharge, under the action of a strong electric field, the point positions of the negative ion emitter 30 and the positive ion emitter 20 have dense equipotential surfaces, and the electric field intensity is increased sharply, so that the air near the point is ionized to generate gas discharge. It can be understood that, under the condition that the charge amount of the negative ion emitter 30 or the positive ion emitter 20 and the surrounding environment thereof are the same, the tip effect is more obvious the sharper the tip of the electrode is, because the sharper the tip is, the larger the curvature is, the higher the surface charge density is, and the stronger the field intensity in the vicinity thereof is.

Further, the air conditioner indoor unit 100 further includes: and the high-voltage power supply 60 is arranged on one side of the electrical box, one end of the high-voltage power supply 60 is electrically connected with the electrical box, and the other end of the high-voltage power supply 60 is electrically connected with the metal filter screen 40 and the plasma generating device.

That is, the metal filter screen 40 and the plasma generating device share the same high voltage power supply 60, so that the space in the cabinet 10 can be saved, thereby effectively improving the space utilization efficiency. The high-voltage power supply 60 is electrically connected with the electrical box, so that the electrical box provides power and controls the on-off of the power, and the adopted high-voltage power supply 60 can be a high-voltage alternating-current power supply or a high-voltage pulse power supply.

As shown in fig. 2, the metal filter 40 is disposed inside the casing 10 and adjacent to the indoor air inlet 11, and the metal filter 40 is disposed on a side of the heat exchanger adjacent to the indoor air inlet 11. Therefore, the metal filter screen 40 is arranged at the inner side of the indoor air inlet 11 and is located at the upstream position of the heat exchanger, so that the air filtered by the metal filter screen 40 forms heat exchange airflow under the heat exchange action of the heat exchanger to realize the cooling or heating effect.

Further, the air conditioner indoor unit 100 further includes: and the air volume sensor is arranged between the metal filter screen 40 and the heat exchanger and is used for detecting the air intake volume at the metal filter screen 40. Therefore, the air quantity sensor is arranged between the metal filter screen 40 and the heat exchanger, and whether the metal filter screen 40 needs to be replaced and cleaned or not can be judged by detecting the air inlet quantity at the metal filter screen 40.

Further, the air conditioner indoor unit 100 further includes: and a controller configured to control the air conditioner indoor unit 100 to send out a reminding signal to remind timely cleaning when determining that the air volume value detected by the air volume sensor is lower than a preset air volume threshold value. When the air volume value detected by the air volume sensor is lower than the preset air volume threshold value, it indicates that dust on the metal filter screen 40 is more and air cannot be efficiently filtered, and at this time, the air conditioner indoor unit 100 sends out a reminding signal, so that a user can be reminded of cleaning.

Further, the controller is electrically connected with the electrical box for controlling on-off control of the positive ion generator and/or the negative ion generator and/or the metal filter screen 40. Therefore, the positive ion generator and the negative ion generator are connected in parallel, the controller can independently control the positive ion generator and the negative ion generator, and when the positive ion generator and the negative ion generator are simultaneously started by the controller, namely the indoor unit 100 of the air conditioner operates in a sterilization mode, the negative ions generated by the positive ion emitter 20 and the positive ions generated by the negative ion emitter 30 can sterilize and disinfect air; when the anion generator is independently started and the metal filter screen 40 is grounded in the indoor unit 100 of the air conditioner, that is, the indoor unit 100 of the air conditioner operates in a dust collecting mode, the metal filter screen 40 is used as a zero potential surface, and the metal filter screen 40 and the anion emitter 30 are arranged in the vicinity of each other, and after the anion generator is started, a large amount of anions are generated and diffused to the indoor air inlet 11, so that dust with negative electricity in air flow and particles pass through the metal filter screen 40, the metal filter screen 40 can quickly adsorb the dust particles, so that the dust particles with negative electricity are electrically neutralized by the metal filter screen 40 which is densely distributed, the efficiency is extremely high, the dust collecting efficiency of the metal filter screen 40 is greatly improved, and blown air can be cleaner and fresher.

In addition, when the air conditioner indoor unit 100 is in the operation stop state, the controller may control the heat exchanger to operate the self-cleaning mode or the high-temperature mode, so as to dry the inside of the air conditioner indoor unit 100, and after the drying is completed, the controller may control the plasma generation device to generate plasma, so as to sterilize the inside of the air conditioner indoor unit 100 by using the plasma.

The self-cleaning mode and the high-temperature mode are working modes of the air conditioner indoor unit 100, the self-cleaning mode can remove dust and water vapor on the surface of the evaporator by using refrigeration frosting, defrosting and high-temperature drying modes, the high-temperature mode directly removes water vapor by using heating and drying modes, and the specific working principle of the self-cleaning mode and the high-temperature mode is easily obtained by ordinary technicians in the field and is not described in detail.

Air conditioner indoor unit 100 can effectively get rid of inside steam through operation automatically cleaning module or high temperature module, reaches the drying purpose to reduce the moisture on bacterium surface, reuse plasma after the drying is accomplished and exterminate the bacterium, be favorable to ion and active material and bacterium surface contact, effectively improve bactericidal effect, the efficiency of disinfecting is higher.

It should be noted that, when the air conditioner indoor unit 100 stops operating, the plasma generator can be automatically controlled to be turned on, or the plasma generator can be turned on according to a control command, which can be understood as a command for controlling the plasma generator to be turned on, or a sterilization mode turning-on command. Certainly, when the sterilization mode is started through the control instruction, the condition that the air conditioner indoor unit 100 is in the operation stop state needs to be met, and therefore, when the control is performed according to the sterilization module starting instruction, the operation state of the air conditioner indoor unit 100 can be judged firstly.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

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

a casing provided with an indoor air inlet and an indoor air outlet;

the heat exchanger is arranged inside the shell;

the heat exchange fan is arranged in the shell, and heat exchange airflow formed by heat exchange of the heat exchanger is output from the indoor air outlet under the operation drive of the heat exchange fan;

a plasma generating device disposed on the housing, the plasma generating device comprising: the negative ion generator and the positive ion generator are connected in parallel, the negative ion generator is provided with a plurality of negative ion emitting electrodes, the positive ion generator is provided with a plurality of positive ion emitting electrodes, and the negative ion emitting electrodes and the positive ion emitting electrodes are arranged at the indoor air inlet at intervals so that generated negative ions and/or positive ions are diffused towards the inner direction of the machine shell;

it is characterized by also comprising:

metal filters sets up indoor air intake department, metal filters's one end and electrical apparatus box electricity are connected, just metal filters's the other end ground connection, plasma generating device with electrical apparatus box electricity is connected, with metal filters with plasma generating device circular telegram after purify by the indoor air current that indoor air intake introduced.

2. An indoor unit for an air conditioner according to claim 1, further comprising: the air inlet grille is arranged at the indoor air inlet, the air inlet grille is provided with a plurality of negative ion emitting electrodes and a plurality of positive ion emitting electrodes, and the negative ion emitting electrodes and the positive ion emitting electrodes are arranged at intervals along the length direction and/or the width direction of the air inlet grille.

3. The indoor unit of claim 2, wherein the emission direction of the negative ion emitter and/or the positive ion emitter is perpendicular to the normal direction of the indoor air inlet and faces the center of the air inlet grille.

4. The indoor unit of claim 2, wherein the positive ion emitter is disposed on a side of the air inlet grille near the front of the cabinet, the negative ion emitter is disposed on a side of the positive ion emitter away from the front of the cabinet, and one of the negative ion emitters and one of the positive ion emitters are provided in a group, and the groups are spaced along a length direction of the air inlet grille.

5. An indoor unit according to claim 4, wherein each of the negative ion emitter and the positive ion emitter comprises: emitting pins, wherein the distance between the tips of the emitting pins of the positive ion emitter and the tips of the emitting pins of the negative ion emitter in each group is a, and a satisfies the relation: a is more than or equal to 10mm and less than or equal to 20mm.

6. An indoor unit for an air conditioner according to claim 1, further comprising: and the high-voltage power supply is arranged on one side of the electric appliance box, one end of the high-voltage power supply is electrically connected with the electric appliance box, and the other end of the high-voltage power supply is electrically connected with the metal filter screen and the plasma generating device.

7. An indoor unit of an air conditioner according to claim 1, wherein the metal filter screen is disposed in the casing and adjacent to the indoor air inlet, and the metal filter screen is disposed on a side of the heat exchanger adjacent to the indoor air inlet.

8. An indoor unit for an air conditioner according to claim 7, further comprising: and the air volume sensor is arranged between the metal filter screen and the heat exchanger and used for detecting the air intake volume at the metal filter screen.

9. An indoor unit for an air conditioner according to claim 8, further comprising: the controller is configured to control the indoor unit of the air conditioner to send out a reminding signal to remind timely cleaning when the air quantity value detected by the air quantity sensor is determined to be lower than a preset air quantity threshold value.

10. An indoor unit for an air conditioner according to claim 1, further comprising: and the controller is electrically connected with the electric appliance box and is used for controlling the on-off control of the positive ion generator and/or the negative ion generator and/or the metal filter screen.

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