CN218884124U

CN218884124U - Air conditioner indoor unit and air conditioner

Info

Publication number: CN218884124U
Application number: CN202222638720.3U
Authority: CN
Inventors: 王辉辉; 于永平; 孙运刚
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-10-08
Filing date: 2022-10-08
Publication date: 2023-04-18
Anticipated expiration: 2032-10-08

Abstract

The application relates to the field of air conditioners and discloses an air conditioner indoor unit. The indoor unit of the air conditioner comprises an indoor unit body, a purification module, a fresh air module and an electrical appliance module. The indoor unit body comprises a first shell and a fan arranged in the first shell. The purification module is arranged on the top of the first shell and is configured to purify air entering the indoor unit of the air conditioner. The fresh air module is arranged on one side of the indoor unit body and is detachably connected with the indoor unit body. And the electrical module is arranged on the other side of the indoor unit body and is detachably and electrically connected with the indoor unit body. Wherein, first casing both ends are equipped with the bayonet socket, and purification module is equipped with the fixture block, and purification module can dismantle with the casing and be connected. The application discloses machine in air conditioning to solve each module part staggered distribution of air conditioner, and then lead to the problem that is difficult to maintain. The application also discloses an air conditioner.

Description

Air conditioner indoor unit and air conditioner

Technical Field

The application relates to the field of air conditioners, in particular to an air conditioner indoor unit and an air conditioner.

Background

An air conditioner is a device which adjusts and controls parameters such as temperature, humidity and flow rate of ambient air in a building or a structure by manual means. The wall-mounted air conditioner is small in occupied size and high in cost performance, so that the wall-mounted air conditioner is more applied to families.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

the prior wall-mounted air conditioner indoor unit is in an integral structure, and various functional components and electric control components are distributed in a staggered way, so that after-sale maintenance procedures are complicated.

It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present application and therefore may include information that does not constitute prior art known to a person of ordinary skill in the art.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides an air conditioner indoor unit and an air conditioner, and aims to solve the problem that maintenance is difficult due to staggered distribution of all module parts of the air conditioner.

In some embodiments, the indoor unit of the air conditioner comprises an indoor unit body, a purification module, a fresh air module and an electrical appliance module. The indoor unit body comprises a first shell and a fan arranged in the first shell. The purification module is arranged on the top of the first shell and is configured to purify air entering the indoor unit of the air conditioner. The fresh air module is arranged on one side of the indoor unit body and is detachably connected with the indoor unit body. And the electrical module is arranged on the other side of the indoor unit body and is detachably and electrically connected with the indoor unit body. Wherein, first casing both ends are equipped with the bayonet socket, and purification module is equipped with the fixture block, and purification module can dismantle with first casing and be connected.

Optionally, the indoor unit of an air conditioner further comprises an alarm module. The alarm module is configured to send out warning information according to the abnormal state of the purification module or the fresh air module.

Optionally, the purification module comprises a module insert and a module frame. Wherein, the module frame both ends are equipped with the fixture block, and the fixture block is used for connecting purification module in first casing.

Optionally, the module insert comprises a dust filtration insert, a purification insert, and/or a sterilization insert.

Optionally, the module insert is detachably connected with the module outer frame.

Optionally, the bottom of the first casing is provided with a first air outlet. The fan is arranged at the first air outlet, the purification module is arranged at the upper side of the fan, and the purification module and the first air outlet form an airflow channel.

Optionally, the fresh air module includes a second housing and a fan disposed in the second housing, wherein a second air outlet is disposed on a top surface of the second housing, and a second air inlet is disposed on a bottom surface of the second housing.

In some embodiments, the air conditioner comprises the air conditioner indoor unit.

Optionally, the air conditioner further includes a compressor, an outdoor unit of the air conditioner, and a four-way valve, which form a refrigerant circulation circuit.

Optionally, the air conditioner further comprises a controller. The controller is configured to acquire a user's purification mode demand and control the air conditioner outdoor unit to be closed. Or the controller is configured to acquire the fresh air mode requirement of the user and control the air conditioner outdoor unit to be closed. Or the controller is configured to acquire the requirement of a user in a cooling mode, a heating mode or a dehumidification mode and control the air conditioner outdoor unit to be opened.

The air conditioner indoor unit and the air conditioner provided by the embodiment of the disclosure can realize the following technical effects:

the air conditioner indoor unit and the air conditioner provided by the embodiment of the disclosure carry multiple functional modules, including the purification module and the fresh air module, and realize multiple functions of the air conditioner. Wherein, purification module, new trend module all can dismantle with indoor set body and be connected, realize the independent dismantlement of each functional module, be convenient for maintain or change. In addition, the air-conditioning indoor unit provided by the embodiment of the disclosure is independently provided with an electric appliance module which is detachably and electrically connected with the indoor unit body. By the arrangement, when power supply and electric control are realized, the electric appliance module can be detached independently, and is convenient to maintain or replace.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

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

fig. 2 is an exploded schematic view of an indoor unit of an air conditioner according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a purification module in an indoor unit of an air conditioner according to an embodiment of the present disclosure;

fig. 4 is a schematic diagram of the indoor unit body and the purification module in the indoor unit of the air conditioner according to the embodiment of the disclosure.

Reference numerals:

1: an indoor unit body; 11: a first housing; 12: a fan;

2: a purification module; 21: module insertion sheets; 22: a module outer frame; 221: a clamping block;

3: a fresh air module;

4: an appliance module.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the disclosed embodiments can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

Nowadays, the air conditioner is a necessary appliance for household and office, and especially in summer and winter, the air conditioner is used for a long time. The air conditioner can refrigerate in summer and heat in winter, can adjust the indoor temperature to be warm in winter and cool in summer, and provides a comfortable environment for users. The air conditioner is developed to date, and mainly has two structures, namely an integral air conditioner and a split air conditioner, and the split air conditioner has a wall-mounted structure, a vertical cabinet structure, a ceiling-mounted structure, an embedded structure and a floor-mounted structure. Among them, the wall-mounted type air conditioner is most widely used in homes.

A wall-mounted air conditioner generally includes an indoor unit and an outdoor unit installed indoors and outdoors, respectively, and connected thereto by pipes and wires. The outdoor unit of the air conditioner, also called a main unit, is mainly provided with a compressor, a condenser, a capillary tube and other components; the indoor unit of the air conditioner is mainly provided with a heat exchanger, a cross flow fan, a grille, a driving motor for driving the cross flow fan to rotate, a swing motor for driving blades to swing, a filter screen, a control unit and other parts.

Along with the continuous development of user's demand, the function of air conditioner increases gradually, and the functional module that the air conditioner carried on increases gradually. The existing air-conditioning indoor unit of the wall-mounted air conditioner is in an integral structural form, and various functional components, functional modules and electric control components are distributed in a staggered mode, so that after-sale maintenance procedures are complicated.

The embodiment of the disclosure discloses an air-conditioning indoor unit and an air conditioner, wherein each functional module and an electrical appliance module 4 are arranged independently of an air-conditioning indoor unit body 1, so that the modules are convenient to disassemble and maintain, and maintenance procedures are simplified.

With reference to fig. 1 and 2, an embodiment of the present disclosure provides an indoor unit of an air conditioner, including an indoor unit body 1, a purification module 2, a fresh air module 3, and an electrical module 4. The indoor unit body 1 includes a first casing 11 and a fan 12 provided in the first casing 11. The purification module 2 is disposed on the top of the first casing 11 and configured to purify air entering the indoor unit of the air conditioner. The fresh air module 3 is arranged on one side of the indoor unit body 1, and the fresh air module 3 is detachably connected with the indoor unit body 1. And the electrical module 4 is arranged on the other side of the indoor unit body 1, and the electrical module 4 is detachably and electrically connected with the indoor unit body 1. Wherein, first casing 11 both ends are equipped with the bayonet socket, and purification module 2 is equipped with fixture block 221, and purification module 2 can dismantle with first casing 11 and be connected.

The air-conditioning indoor unit provided by the embodiment of the disclosure carries multiple functional modules, including the purification module 2 and the fresh air module 3, and realizes multiple functions of an air conditioner. Wherein, purification module 2, new trend module 3 all can be dismantled with indoor set body 1 and be connected, realize the independent dismantlement of each functional module, be convenient for maintain or change. In addition, the air-conditioning indoor unit provided by the embodiment of the disclosure is independently provided with an electrical module 4, and is detachably and electrically connected with the indoor unit body 1. By the arrangement, the electrical module 4 can be detached independently while power supply and electric control are realized, and maintenance or replacement is facilitated.

The first casing 11 of the indoor unit of the air conditioner and the wall installation side are provided with a plurality of installation openings. And plastic expansion anchor bolts are arranged on the wall corresponding to the mounting openings, and a plurality of screws penetrate through the mounting openings and are arranged in the plastic expansion anchor bolts of the wall, so that the indoor unit of the air conditioner is stably arranged on the wall.

The detachable electrical connection between the electrical module 4 and the indoor unit body 1 is realized by an integrated electrical interface and an integrated terminal strip. The first housing 11 is provided with an integrated electrical interface or an integrated terminal strip, respectively, towards the side of the appliance module 4 and the corresponding side of the appliance module 4. By making the electrical module 4 independent from the indoor unit body 1, the electrical module 4 can be easily and conveniently mounted and dismounted, and the maintenance procedures of each electric control component in the electrical module 4 are further simplified.

In one embodiment, the first housing 11 is provided with an integrated electrical interface facing the electrical module 4, the corresponding side of the electrical module 4 is provided with an integrated terminal strip, and the integrated electrical interface is disposed corresponding to the position of the integrated terminal strip. The components such as the fan 12 in the indoor unit body 1 are all connected with the integrated electrical interface. And each electric control assembly in the electric appliance module 4 is connected with the integrated terminal strip. After the indoor unit body 1 and the electrical module 4 are connected through the integrated electrical interface and the integrated terminal strip, the electrical module 4 can supply power and electrically control each component in the indoor unit body 1.

In one embodiment, the first housing 11 is provided with an integrated terminal strip towards the electrical module 4, the corresponding side of the electrical module 4 is provided with an integrated electrical interface, and the integrated electrical interface is disposed corresponding to the position of the integrated terminal strip. The components such as the fan 12 in the indoor unit body 1 are all connected with the integrated terminal strip. And each electric control assembly in the electric appliance module 4 is connected with the integrated electrical interface. After the indoor unit body 1 and the electrical module 4 are connected through the integrated electrical interface and the integrated terminal strip, the electrical module 4 can supply power and electrically control each component in the indoor unit body 1.

Optionally, the indoor unit of the air conditioner further comprises an alarm module. The alarm module is configured to send out warning information according to the abnormal state of the purification module 2 or the fresh air module 3.

Quick detachable behind each function module ization of machine in the air conditioning, the machine in the air conditioning that this disclosed embodiment provided still is equipped with alarm module. When the purification module 2 or the fresh air module 3 is in an abnormal state, namely the purification module 2 or the fresh air module 3 is mistakenly removed in the operation of the air conditioner, the alarm module sends out warning information. Wherein, the alarm module includes warning light, and/or, loudspeaker. When the purification module 2 or the fresh air module 3 is in an abnormal state, the warning lamp is turned on, and/or the loudspeaker sends out warning sound to remind a user. The air conditioner further comprises a control module configured to cooperate with the alarm module to jointly handle the functional module abnormal condition.

In one embodiment, the air conditioner is powered on. The user selects the fresh air mode for the operation of the air conditioner. When fresh air module 3 is in an abnormal state, namely fresh air module 3 is removed by mistake, control module closes fresh air module 3 motor. Meanwhile, a warning lamp of the alarm module is turned on, and/or a horn sends a warning sound to remind a user that the fresh air module 3 is mistakenly disassembled.

In one embodiment, the air conditioner is powered on. The user selects the cooling, heating or dehumidifying mode of the air conditioner. When the fresh air module 3 is in an abnormal state, namely the fresh air module 3 is removed by mistake, the control module locks the electrical appliance module 4. Meanwhile, a warning lamp of the alarm module is turned on, and/or a horn sends a warning sound to remind a user that the fresh air module 3 is mistakenly disassembled. And finally, the control module turns off the air conditioner.

In one embodiment, the air conditioner is operated at power-on. The user selects the cooling, heating or dehumidifying mode of the air conditioner. When the purification module 2 is in an abnormal state, namely the purification module 2 is removed by mistake, the control module locks the electrical appliance module 4. Simultaneously, the warning light of alarm module lights and/or, loudspeaker send warning sound and remind user to purify module 2 and be torn open by the mistake.

In one embodiment, the air conditioner is powered on. The user selects the cooling, heating or dehumidifying mode of the air conditioner. When the electrical module 4 is in an abnormal state, namely the electrical module 4 is mistakenly detached, the warning lamp of the alarm module is turned on, and/or the horn sends out warning sound to remind the user that the electrical module 4 is mistakenly detached. And finally, the control module turns off the air conditioner.

Through setting up control module and alarm module in coordination, can effectively improve the security and the stability of air conditioner.

Optionally, the purification module 2 comprises a module insert 21 and a module housing 22. Wherein, two ends of the module outer frame 22 are provided with a latch 221, and the latch 221 is used for connecting the purification module 2 to the first housing 11, as shown in fig. 3.

Optionally, module insert 21 comprises a dust filter insert, a purification insert, and/or a sterilization insert.

Optionally, the module insert 21 is detachably connected to the module housing 22.

The purification module 2 is used as a functional module, and is arranged in a module outer frame 22 by arranging the module inserting pieces 21, so that different module inserting pieces 21 can be replaced to carry different functions of the air conditioner. For example, module insert 21 includes a dust filter insert, a cleaning insert, and/or a sterilization insert. The module inserting pieces 21 with different functions are unified into a specification, and the specification corresponds to the size of the module outer frame 22. The module inserting sheet 21 is detachably connected with the module outer frame 22, the inner inserting sheet can be replaced to realize module function replacement, and the required inserting sheet can be directly inserted to realize the required function. The module is easy to replace and operate, and the function of the air conditioner can be changed according to the requirement of a user.

The independent purification module 2 is arranged, the purification module 2 is configured to purify air entering the air-conditioning indoor unit, so that the number of filter assemblies such as filter screens in the traditional wall-mounted air-conditioning indoor unit can be reduced or the filter assemblies are not arranged, and the structure of the air-conditioning indoor unit is simplified.

The purifying module 2 is connected to the first casing 11 through the clamping blocks 221 at the two ends of the module outer frame 22, and is easy to detach. Since the purification module 2 is configured to purify air entering the indoor unit of the air conditioner, impurities such as dust may be intercepted by the purification module 2, and the impurities may be accumulated after a period of use and need to be cleaned. Components such as traditional wall-hanging air conditioner filter screen set up in the casing, need demolish the casing during the clearance, and the operation is complicated. Purification module 2 detachable connects in first casing 11, clears up module inserted sheet 21 after convenient to detach. If reduce filter component quantity such as filter screen among traditional wall-hanging air conditioning indoor set, purification module 2 can block some dust for filter component such as filter screen needs the clearance time extension in the air conditioning indoor set.

Optionally, the bottom of the first casing 11 is provided with a first air outlet. The fan 12 is disposed at the first air outlet, the purifying module 2 is disposed at an upper side of the fan 12, and the purifying module 2 and the first air outlet form an airflow path.

Inside the first housing 11, a fan 12 is located below the purification module 2, as shown in fig. 4. The indoor unit of the air conditioner is used for supplying air from the purification module 2 and discharging air from a first air outlet below the fan 12. The purification module 2 and the first air outlet form an airflow channel, so that the indoor unit of the air conditioner can be used as an air purifier, the number of household appliances is simplified, and the user experience is improved. Wherein the fan 12 comprises a cross-flow fan 12 or a centrifugal fan 12.

Optionally, the fresh air module 3 includes a second housing and a fan disposed in the second housing, wherein a second air outlet is disposed on a top surface of the second housing, and a second air inlet is disposed on a bottom surface of the second housing.

The fresh air module 3 is configured to introduce outdoor air into the room and discharge indoor air to the outside. The user generally closes the window when using air conditioner, uses the air conditioner for a long time in summer and winter and leads to the unable circulation of indoor air. Different from the combination of the purification module 2 and the fan 12, the fresh air module 3 makes indoor air and outdoor air circulate, so that the indoor air is fresh. Wherein, fresh air module 3 can be dismantled, only installs and decorates the curb plate.

The air-conditioning indoor unit further comprises a heat exchanger. When different users need heat exchangers with different powers, only the heat exchanger with the corresponding power needs to be selected, and the electric appliance module 4 can be used universally. Meanwhile, the indoor unit body 1 and the electric appliance module 4 integrated with the electric control assembly are two separable relatively independent bodies, so that the arrangement of parts such as a heat exchanger and the like and the arrangement of the electric control assembly and the like are not interfered with each other, the heat exchanger is convenient to disassemble and assemble, and the replacement of heat exchangers and the like with different types and different powers according to actual requirements by a user is facilitated. For example, the same user wants to change the heat exchangers of different powers, different heat transfer effects, only need with the original heat exchanger dismantlement in the indoor set body 1, change into new heat exchanger can, need not dismouting electrical apparatus module 4, whole process can not exert an influence to automatically controlled subassembly, also can not receive the influence of automatically controlled subassembly. The air conditioner indoor unit is simple in structure, the production cost of the whole air conditioner indoor unit is effectively reduced, and the economic benefit is improved.

The compressor is an important part of the air conditioner, and the function of the compressor is to realize the circulation of heat. The compressor is a pump that transfers heat generated by the operation of the machine from the heat absorption portion to the heat dissipation portion. The compressor needs the cooperation of temperature relay to use, and temperature relay arranges the head at the compressor, and when the higher environment of temperature, the work of compressor can be because of the high shutdown that stops. The four-way valve is another important component in the air conditioner. The four-way valve has the working principle that when a solenoid valve coil is in a power-off state, a pilot spool valve moves left under the drive of a right compression spring, and high-pressure gas enters a right piston cavity after entering a capillary tube. On the other hand, the gas in the left end piston chamber is exhausted. Because of the pressure difference between the two ends of the piston, the piston and the main slide valve move left, so that the exhaust pipe is communicated with the outdoor unit connecting pipe, and the other two connecting pipes are communicated to form a refrigeration cycle. When the solenoid valve coil is in a power-on state, the pilot spool overcomes the tension of the compression spring to move rightwards under the action of magnetic force generated by the solenoid coil, and high-pressure gas enters the left-end piston cavity after entering the capillary tube. On the other hand, the gas in the right piston chamber is discharged. Because of the pressure difference between the two ends of the piston, the piston and the main slide valve move right, so that the exhaust pipe is communicated with the indoor machine connecting pipe, and the other two connecting pipes are communicated to form a heating cycle.

In one embodiment, the air conditioner is powered on. The user selects the air conditioner operation purification mode.

The controller turns off the outdoor unit of the air conditioner and turns on the indoor unit fan 12 of the air conditioner to operate. The indoor unit of the air conditioner is used for supplying air from the purification module 2 and discharging air from a first air outlet below the fan 12. The purification module 2 and the first air outlet form an airflow channel, so that the indoor unit of the air conditioner can be used as an air purifier, the number of household appliances is simplified, and the user experience is improved.

In one embodiment, the air conditioner is powered on. The user selects the fresh air mode for the operation of the air conditioner.

The controller closes the outdoor unit of the air conditioner and starts the fresh air module 3 of the indoor unit of the air conditioner to operate. The fresh air module 3 introduces outdoor air into the room and discharges the indoor air out of the room, so that the indoor air is fresh.

In one embodiment, the air conditioner is powered on. The user selects the cooling, heating or dehumidifying mode of the air conditioner. The controller starts the outdoor unit of the air conditioner and simultaneously starts the indoor unit body 1 to normally operate the refrigeration, heating or dehumidification functions.

The air-conditioning indoor unit disclosed by the embodiment of the disclosure is provided with the indoor unit body 1 and the electrical module 4 which are detachably and electrically connected in a plug-in mode, so that the indoor unit body 1 and the electrical module 4 are separated. Meanwhile, the fresh air module 3 is arranged at the other side of the indoor unit body 1, and the purification module 2 is arranged at the upper part of the first shell 11, separated from the indoor unit body 1 and separated from the electrical module 4. Each module is independently arranged, and the modularization of the air conditioner is realized. And the fresh air module 3, the purification module 2, the indoor unit body 1 and the electrical appliance module 4 are all separated into an independent whole. Therefore, the user can select or replace the proper functional module according to the actual requirement, the personalized requirement of customizing the indoor unit of the air conditioner by the user is realized, and the consumption is stimulated.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

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

the indoor unit body comprises a first shell and a fan arranged in the first shell;

the purification module is arranged at the top of the first shell and is configured to purify air entering the indoor unit of the air conditioner;

the fresh air module is arranged on one side of the indoor unit body and is detachably connected with the indoor unit body; and,

an electrical appliance module arranged at the other side of the indoor unit body, the electrical appliance module is detachably and electrically connected with the indoor unit body,

wherein, first casing both ends are equipped with the bayonet socket, purification module is equipped with the fixture block, purification module with first casing can dismantle the connection.

2. An indoor unit of an air conditioner according to claim 1, further comprising:

and the alarm module is configured to send out warning information according to the abnormal state of the purification module or the fresh air module.

3. An indoor unit of an air conditioner according to claim 1,

the purification module comprises a module inserting piece and a module outer frame,

and clamping blocks are arranged at two ends of the module outer frame and used for connecting the purification module to the first shell.

4. An indoor unit of an air conditioner according to claim 3,

the module inserting piece comprises a dust filtering inserting piece, a purifying inserting piece and/or a sterilizing inserting piece.

5. An indoor unit of an air conditioner according to claim 3,

the module inserting piece is detachably connected with the module outer frame.

6. An indoor unit of an air conditioner according to any one of claims 1 to 5,

the bottom of the first shell is provided with a first air outlet,

the fan is arranged at the first air outlet, the purification module is arranged at the upper side of the fan, and the purification module and the first air outlet form an airflow channel.

7. An indoor unit of an air conditioner according to any one of claims 1 to 5,

the fresh air module comprises a second shell and a fan arranged in the second shell, wherein a second air outlet is formed in the top surface of the second shell, and a second air inlet is formed in the bottom surface of the second shell.

8. An air conditioner characterized by comprising an indoor unit of an air conditioner according to any one of claims 1 to 7.

9. The air conditioner according to claim 8, further comprising:

compressor, air condensing units and cross valve.

10. The air conditioner of claim 9, further comprising a controller configured to:

acquiring the purification mode requirement of a user, and controlling the air conditioner outdoor unit to be closed; or,

acquiring a fresh air mode requirement of a user, and controlling the air conditioner outdoor unit to be closed; or,

and acquiring the requirements of a user on a refrigeration mode, a heating mode or a dehumidification mode, and controlling the opening of the air conditioner outdoor unit.