CN216409129U

CN216409129U - Indoor air conditioner

Info

Publication number: CN216409129U
Application number: CN202121598900.2U
Authority: CN
Inventors: 徐佳
Original assignee: Hisense Shandong Air Conditioning Co Ltd
Current assignee: Hisense Air Conditioning Co Ltd
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2022-04-29
Anticipated expiration: 2031-07-14

Abstract

The utility model discloses an indoor air conditioner, wherein each fresh air module comprises a fresh air pipe, a filter screen, an axial flow fan module and a centrifugal fan module, wherein the fresh air pipe side of the filter screen is called an air inlet cavity, the axial flow fan module is arranged on one side of the air inlet cavity, the axial flow fan is only used as a return air fan, a second closed structure is arranged at the air inlet part of the axial flow fan, the centrifugal fan is only used as an air outlet fan of fresh air, an air outlet of the centrifugal fan is provided with a third closed structure, when the fresh air module is used as a fresh air outlet, the second closed structure is closed, the third closed structure is opened, when the fresh air module is used as a return air inlet, the second closed structure is opened, the third closed structure is closed, fresh air entering the room is purified by the filter screen, and return air is directly discharged to the outside without passing through the filter screen.

Description

Indoor air conditioner

Technical Field

The utility model relates to the field of design of air conditioner fresh air modules, in particular to an indoor air conditioner.

Background

The air conditioner is a household appliance which is widely applied, generally has heating and refrigerating functions, adjusts the temperature of indoor air when the ambient temperature is too low or too high, provides a proper indoor environment for users, and effectively improves the life quality of the users.

However, since the conventional air conditioner only circularly heats or cools indoor air during heating or cooling, and a user simultaneously closes a door of a living room to maintain the indoor temperature, the indoor air quality is gradually deteriorated, thereby adversely affecting the physical health of the user. Particularly, in recent years, the air pollution is increasingly serious, and people are reluctant to open windows for ventilation particularly in winter heating seasons, so that the indoor air quality is increasingly poor, the oxygen content is increasingly low, and the physical health is affected.

After the existing air conditioner indoor hanging machine introduces the fresh air device, the general fresh air device can only realize direct-blowing unidirectional air supply, namely, the fresh air module can only introduce outdoor air into an indoor space through the fresh air module, but cannot discharge the indoor air to the outdoor space to perform bidirectional air exchange;

because the temperature difference between indoor air and outdoor air is a certain value, fresh air directly enters the room to make human body directly contact with outdoor fresh air, the temperature difference is larger, and the existing one-way air exchanging air conditioner can make human body feel uncomfortable.

SUMMERY OF THE UTILITY MODEL

In some embodiments of this application, for solving above-mentioned technical problem, an indoor air conditioner is provided, through dividing two wind channels at new trend module inside, and the wind gap position in wind channel sets up the closed structure who is used for controlling wind channel intercommunication state, still be provided with the fan module that is used for driving the air current trend in two wind channels respectively, cooperation through fan module and closed structure, realize the two-way wind of trading of indoor air conditioner new trend module, the new trend module of indoor air conditioner among the prior art can't realize two-way wind of trading and cause the user to use and experience not good problem.

In some embodiments of the application, the internal structure of the fresh air module is improved, the first cavity and the second cavity are formed in the shell of the fresh air module, a first air channel and a second air channel are formed in the first cavity and the second cavity, the first fan module is arranged in the first cavity, the second fan module is arranged in the second cavity, the first fan module and the second fan module are driven to achieve bidirectional air exchange of the fresh air module, indoor airflow flows to the outdoor through the first air channel and the fresh air channel, and the outdoor airflow can be introduced into the indoor through the fresh air channel and the second air channel.

In some embodiments of the present application, the through hole of the fresh air module is improved, the housing of the fresh air module is provided with a first through hole, a second through hole and a third through hole, the first through hole and the second through hole form a first air duct for guiding the indoor air flow out of the room, the first through hole and the third through hole form a second air duct for introducing the outdoor air into the room, and a second closing structure and a third closing structure are respectively arranged at corresponding positions of the second through hole and the third through hole for controlling the opening and closing of the first air duct and the second air duct.

The second closing structure and the third closing structure adopt a gear meshing structure, and the opening and closing of the structures are controlled by a stepping motor.

In some embodiments of the present application, the operation mode of the fresh air module includes a return air mode and a fresh air mode;

when new trend module is in new trend mode:

the first closing structure and the second closing structure are both in a closing state, and the third closing structure is in an opening state;

outdoor air flow enters the second air channel through the first through hole, flows through the filter screen assembly to enter the second cavity under the driving of the second fan module and flows into the second cavity through the third through hole, and the introduction work of outdoor fresh air is completed.

When the new trend module is in the return air mode:

the first closing structure and the second closing structure are both in an opening state, the third closing structure is in a closing state, indoor air flow enters the first air channel through the second through hole under the driving of the first fan module and is discharged through the first through hole, and the work that indoor air is led out of the outdoor air is completed.

When the new trend module is in the new trend mode, the inside air current trend of new trend module is:

outdoor space-first through hole-first chamber-filter screen assembly-second chamber-second fan module-third through hole-indoor space.

When the new trend module is in the return air mode, the inside air current trend of new trend module is:

indoor space-second through hole-first fan module-first chamber-first through hole-outdoor space.

In some embodiments of the present application, an indoor air conditioner includes a housing and a fresh air module disposed inside the housing.

The fresh air module comprises a shell provided with a first through hole, a second through hole and a third through hole, and the second through hole and the third through hole are correspondingly provided with a second closed structure and a third closed structure respectively.

The novel air duct comprises a shell, and is characterized in that the inner space of the shell is divided into a first cavity and a second cavity, the first cavity and the second cavity are communicated with each other, a first through hole is formed in the first cavity, a second through hole is formed in the first cavity and communicated with the first through hole through the first cavity to form a first air duct, a third through hole is formed in the second cavity and communicated with the first through hole through the second cavity and the first cavity to form a second air duct, the fresh air module further comprises a first fan module and a second fan module, the first fan module is arranged in the first cavity, and the second fan module is arranged in the second cavity.

In some embodiments of the present application, the air inlet portion of the first fan module is opposite to and communicated with the second through hole, and the second closing device controls the on-off state of the second through hole;

an air inlet part of the second fan module is communicated with the first through hole through a second air duct, an air outlet part of the second fan module is communicated with the third through hole through the second air duct, and a third closing device controls the opening and closing state of the third through hole;

wherein, the on-off state of second through-hole and third through-hole includes: an on state and an off state.

In some embodiments of the present application, a screen assembly is disposed inside the housing, the screen assembly being disposed in the first and second chamber communication locations and occupying the entire area of the cross-section of the first and second chamber communication locations inside the housing.

In some embodiments of the present application, the first fan module is an axial fan module and the second fan module is a centrifugal fan module.

In some embodiments of the present application, a first closing device is disposed at an air outlet portion of the first fan module.

In some embodiments of the present application, the first closing means is provided as a check valve for controlling the unidirectional flow of the gas flow in the second through hole.

In some embodiments of this application, first through-hole is external to have the fresh air pipe, and the fresh air module passes through the fresh air pipe and communicates in outdoor space.

In some embodiments of the present application, the second closing structure and the third closing structure each include a step motor, a gear sleeved on a motor shaft of the step motor, a closing panel, and a rack disposed on the closing panel and engaged with the gear, and the closing panel is slidable with respect to the second through hole and the third through hole, respectively.

The second closing structure and the third closing structure adopt a gear-rack meshing structure, and the closed panel is controlled by the stepping motor to slide relative to the second through hole or the third through hole so as to control the opening and closing states of the second through hole or the third through hole.

Wherein, but second closing structure is along the fore-and-aft direction sliding switch second through-hole of new trend module, and the third closing structure is along the left and right sides direction sliding switch third through-hole of new trend module, and the third closing structure set up the position and will be higher than the second closing structure.

In some embodiments of this application, the new trend module is provided with two, and two new trend modules set up the both sides inside the casing respectively.

The novel air conditioner has the advantages that the novel air module is suitable for a bidirectional novel air conditioner, the return air fan and the novel air fan are arranged in the first air channel and the second air channel in the novel air module in a centralized mode, the opening and closing states of the first air channel and the second air channel are controlled through the second closed structure and the third closed structure respectively, bidirectional air exchange of the novel air module is achieved, the novel air module can be used for introducing outdoor air flow into an indoor space and guiding indoor air flow out of the room, indoor and outdoor air temperature is more balanced in the novel air exchange operation process, on the basis of improving use experience of a user, additional equipment for guiding the indoor air flow out of the room is not needed, and therefore the size of the air conditioner does not need to be increased.

Drawings

FIG. 1 is a schematic view of an air conditioner according to some embodiments of the present invention;

FIG. 2 is a schematic view of an air conditioner according to some embodiments of the present invention;

FIG. 3 is a schematic view of a fresh air module according to some embodiments of the present invention;

FIG. 4 is a schematic view of a fresh air module according to some embodiments of the present invention;

FIG. 5 is a schematic view of a fresh air module according to some embodiments of the present invention;

FIG. 6 is one of the schematic illustrations of the interior of the first chamber in some embodiments of the utility model;

FIG. 7 is one of the schematic illustrations of the interior of the first chamber in some embodiments of the utility model;

FIG. 8 is a schematic view of the interior of a second chamber in some embodiments of the utility model;

FIG. 9 is a schematic view of a third closure device actuation configuration in some embodiments of the present invention;

FIG. 10 is a schematic view of the internal structure of a fresh air module according to some embodiments of the utility model;

FIG. 11 is a schematic view of the internal airflow flow of the fresh air module in the indoor airflow sense (return mode) mode of operation in accordance with some embodiments of the present invention;

FIG. 12 is a schematic view of the internal airflow flow of the fresh air module in an outdoor airflow induction (fresh air mode) mode of operation in some embodiments of the utility model;

fig. 13 is a schematic diagram of airflow direction for bi-directional ventilation of a room air conditioner in some embodiments of the present invention.

Reference numerals:

the method comprises the following steps: 100. an indoor air conditioner; 101. a housing; 102. a heat exchange assembly; 103. a fan assembly; 104. a fresh air duct; 200. a fresh air module; 210. a housing; 211. a first through hole; 212. a second through hole; 213. a third through hole; 221. a first chamber; 222. a second chamber; 230. a first fan module; 240. a second fan module; 251. a first closed configuration; 252. a second closed configuration; 253. a third closed configuration; 260. a screen assembly; 271. a stepping motor; 272. a gear; 373. a rack.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

As shown in fig. 1 to 2, in a conventional indoor air conditioner 100, a heat exchange cycle of the indoor air conditioner 100 is performed including a cabinet 101, a heat exchange assembly 102, and a fan assembly 103.

An air return opening and an air outlet are formed in the shell 101;

also includes a compressor and an expansion valve.

The heat exchange assembly 102 is an indoor heat exchanger and can be used as a condenser and an evaporator.

The fan assembly 103 serves as a driving unit for air flow for driving indoor air to perform air circulation, and the indoor air conditioner is used for heat exchange and air exchange of an indoor space.

In practical applications, the air conditioner system as a whole includes an indoor air conditioner 100 and an outdoor air conditioner, the outdoor air conditioner refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, the indoor air conditioner 100 is connected to the outdoor air conditioner installed in an outdoor space through a pipe, the indoor air conditioner 100 includes an indoor heat exchanger, and an expansion valve is provided in the outdoor air conditioner.

The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator, and the air conditioner serves as a heater in a heating mode when the indoor heat exchanger serves as the condenser, and serves as a cooler in a cooling mode when the indoor heat exchanger serves as the evaporator.

The air conditioner system performs a cooling/heating cycle of an indoor space by using a compressor, a condenser, an expansion valve, and an evaporator, and the cooling/heating cycle includes a series of processes, for example, a cooling process, which involves compressing, condensing, expanding, and evaporating, and supplies refrigerant to air that has been conditioned and heat-exchanged.

The compressor compresses a refrigerant gas in a high temperature and high pressure state and discharges the compressed refrigerant gas, the discharged refrigerant gas flows into a condenser, the condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through a condensation process.

The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant, the evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor, the evaporator can achieve a refrigerating effect by heat exchange with a material to be cooled using latent heat of evaporation of the refrigerant, and the air conditioner can adjust the temperature of an indoor space throughout the cycle.

As shown in fig. 1-2, in an indoor air conditioner 100 of the present application, the indoor air conditioner 100 further includes a fresh air module 200.

The fresh air module 200 includes a housing 210.

The surface of the housing 210 is formed with a first through hole 211, a second through hole 212, and a third through hole 213.

The second through hole 212 corresponds to an air return opening of the indoor air conditioner 100, and the third through hole 213 is opposite to an air outlet opening of the indoor air conditioner 100.

The inner space of the case 210 is divided into a first chamber 221 and a second chamber 222, and the first chamber 221 and the second chamber 222 communicate with each other.

The first through hole 211 is arranged in the first chamber 221, the second through hole 212 is arranged in the first chamber 221 and communicated with the first through hole 211 through the first chamber 221 to form a first air duct, and the third through hole 213 is arranged in the second chamber 222 and communicated with the first through hole 211 sequentially through the second chamber 222 and the first chamber 221 to form a second air duct.

It should be noted that two chambers which are communicated with each other are formed in the inner space of the housing 210 of the fresh air module 200, the housing 210 is divided into two parts with different functions by the two chambers, and two air ducts are formed in the housing 210 and are respectively used for leading out the indoor air flow and leading in the outdoor air flow.

As shown in fig. 3-10, the fresh air module 200 further includes a first fan module 230 and a second fan module 240.

The first fan module 230 is disposed in the first chamber 221, and the second fan module 240 is disposed in the second chamber 222.

It should be noted that the first fan module 230 is used for driving the outlet of the indoor airflow, and the second fan module 240 is used for driving the inlet of the outdoor airflow.

As shown in fig. 3-10, the second and third through

holes

212 and 213 are respectively provided with a second and

third closing structure

252 and 253, respectively.

The air inlet portion of the first fan module 230 is opposite to and communicated with the second through hole 212, and the second closing device controls the opening and closing state of the second through hole 212.

The air inlet portion of the second fan module 240 is communicated with the first through hole 211 through a second air duct, the air outlet portion of the second fan module 240 is communicated with the third through hole 213 through a second air duct, and the third closing device controls the on-off state of the third through hole 213.

It should be noted that the second closing structure 252 and the third closing structure 253 further control the communication or the closure of the first air duct and the second air duct by controlling the opening or the closing of the second through hole 212 and the third through hole 213, and the operation of the fresh air module 200 in different modes is realized by the opening and the closing of the second closing structure 252 and the third closing structure 253.

For example, when the first fan module 230 conducts indoor airflow guiding-out work through the first air duct, the second closing structure 252 is opened, the first air duct is in a communicated state, the third closing structure 253 is closed, the second air duct is closed, the first fan module 230 is started, the second fan module 240 is closed, and the first fan module 230 drives indoor airflow to enter the inside of the housing 210 of the fresh air module 200 and flow out of the room through the first air duct;

when the second fan module 240 performs outdoor airflow introduction work through the second air duct, the third closing structure 253 is opened, the second air duct is in a communicated state, the second closing structure 252 is closed, the first air duct is closed, the second fan module 240 is started, the first fan module 230 is closed, and the second fan module 240 drives indoor airflow to enter the inside of the casing 210 of the fresh air module 200 and flow out of the room through the second air duct.

It should be further noted that, among others, the on-off states of the second through hole 212 and the third through hole 213 include: an on state and an off state.

As shown in fig. 10, a screen assembly 260 is disposed inside the housing 210.

The screen assembly 260 is disposed at a position where the first and

second chambers

221 and 222 communicate with each other, and occupies the entire area of the cross-section of the position where the first and

second chambers

221 and 222 communicate with each other inside the housing 210.

It should be noted that the screen assembly 260 is used for filtering the airflow introduced into the room through the second air duct.

As shown in fig. 6-8, in some embodiments of the present application, the first fan module 230 is an axial fan module and the second fan module 240 is a centrifugal fan module.

The air outlet portion of the first fan module 230 is provided with a first closing device.

In one embodiment of the present application, the first closing means is provided as a check valve for controlling the unidirectional flow of the gas flow in the second through hole 212.

It should be noted that, as shown in fig. 7, the first closing structure 251 is a check valve structure, which is made of an aluminum sheet and is light in weight, and a spring with appropriate stiffness can be used as a check function.

It should also be noted that, when the axial flow fan module does not work, it is ensured that the air return opening is in a completely closed state, and the first closing structure 251 is only a return structure, and when the centrifugal fan works, the air flow is pressed to the first closing structure 251, and the first closing structure 251 is better closed.

When the axial flow fan works, the closed structure can be opened by slight pressure generated by airflow, and indoor air is exhausted outdoors through the pipeline after passing through the closed structure.

In the above embodiment, the first fan module 230 is an axial flow fan module, and the second fan module 240 is a centrifugal fan module, so that on one hand, the first fan module 230 is used for guiding indoor airflow out of a room, the axial flow fan can have larger air pressure, and the second fan module 240 is used for guiding outdoor airflow into the room, so that the air outlet of the air outlet part is uniformly dispersed as much as possible;

on the other hand, because this application utilizes a new trend module 200 to realize two-way air change, will be indoor to outdoor and outdoor to two indoor direction air change structures all concentrate and set up in new trend module 200, then need to guarantee that two air change structures are not influenced mutually in carrying out the course of the work, therefore, in outdoor air current introduction process, when centrifugal fan module work and axial fan module are out of work, first closed structure 251 guarantees that first wind channel does not participate in the air change, and first closed structure 251 is the non return structure, centrifugal fan module air inlet portion drive air current flows the pressure to first closed structure 251, first closed structure 251 closure can be better.

In the process of leading out the indoor air flow, when the axial flow fan works, the closed structure can be opened by slight pressure generated by the air flow, and the indoor air flows to the outside through the first air channel after passing through the first closed structure 251.

As shown in fig. 3-10, in some embodiments of the present application, the first through-hole 211 is circumscribed by the fresh air duct 104.

The fresh air module 200 is communicated with the outdoor space through the fresh air pipe 104.

Based on the above embodiments, the basic improved concept of the present application is: the bidirectional air exchange of the fresh air module 200 is realized.

The structural improvement of new trend module 200 of this application includes:

the housing 210 of the fresh air module 200 is provided with a first through hole 211, a second through hole 212 and a third through hole 213, and the second through hole 212 and the third through hole 213 are respectively provided with a second closing structure 252 and a third closing structure 253 correspondingly.

The interior space of the housing 210 is divided into a first chamber 221 and a second chamber 222, the first chamber 221 and the second chamber 222 are communicated with each other, the first through hole 211 is arranged in the first chamber 221, the second through hole 212 is arranged in the first chamber 221 and is communicated with the first through hole 211 through the first chamber 221 to form a first air duct, the third through hole 213 is arranged in the second chamber 222 and is communicated with the first through hole 211 through the second chamber 222 and the first chamber 221 in sequence to form a second air duct, the fresh air module 200 further comprises a first fan module 230 and a second fan module 240, the first fan module 230 is arranged in the first chamber 221, and the second fan module 240 is arranged in the second chamber 222.

An air inlet part of the second fan module 240 is communicated with the first through hole 211 through a second air duct, an air outlet part of the second fan module 240 is communicated with the third through hole 213 through the second air duct, and a third closing device controls the on-off state of the third through hole 213;

wherein, the on-off states of the second through hole 212 and the third through hole 213 include: an on state and an off state.

Based on the above structural improvement, the working modes of the fresh air module 200 specifically include the following two types:

a return air mode and a fresh air mode.

When the fresh air module 200 is in the fresh air mode, as shown in fig. 12:

the first and

second closure structures

251, 252 are both in a closed state and the third closure structure 253 is in an open state;

outdoor air flow enters the second air duct through the first through hole 211, flows through the filter screen assembly 260 to enter the second chamber 222 under the driving of the second fan module 240, and flows into the chamber through the third through hole 213, thereby completing the introduction of outdoor fresh air.

When the fresh air module 200 is in the return air mode, as shown in fig. 11:

the first closing structure 251 and the second closing structure 252 are both in an open state, the third closing structure 253 is in a closed state, and indoor air flow enters the first air duct from the second through hole 212 and is discharged from the first through hole 211 under the driving of the first fan module 230, so that the indoor air is guided out of the room.

Based on above-mentioned two kinds of mode, when new trend module 200 was in new trend mode, the inside air current trend of new trend module 200 was, as figure 12:

outdoor space-first through hole 211-first chamber 221-screen assembly 260-second chamber 222-second fan module 240-third through hole 213-indoor space.

When the fresh air module 200 is in the return air mode, the airflow inside the fresh air module 200 moves to the direction as shown in fig. 11:

indoor space-second through hole 212-first fan module 230-first chamber 221-first through hole 211-outdoor space.

As shown in fig. 9, the second and

third closing structures

252 and 253 control one embodiment of the switching states of the second and third through holes 212 and 213:

the second closing structure 252 and the third closing structure 253 each include a step motor 271, a gear 272 sleeved on a motor shaft of the step motor 271, a closing panel, and a rack 373 disposed on the closing panel and engaged with the gear 272.

The closure panel is slidable relative to the second and third through

holes

212 and 213, respectively.

It should be noted that the second closing structure 252 and the third closing structure 253 adopt a structure in which the gear 272 and the rack 373 are engaged, and the stepping motor 271 controls the closing panel to slide relative to the second through hole 212 or the third through hole 213, so as to control the on-off state of the second through hole 212 or the third through hole 213.

When the corresponding fan works, the structure is opened, and when the corresponding fan does not work, the structure is closed.

Outside guaranteeing the normal operating requirement of new trend system, when the machine is out of work completely, also can prevent that external dust etc. from getting into the machine, have dustproof effect.

In an embodiment of the present application, the second closing structure 252 slidably opens and closes the second through hole 212 in the front-rear direction of the fresh air module 200, the third closing structure 253 slidably opens and closes the third through hole 213 in the left-right direction of the fresh air module 200, and the third closing structure 253 is disposed at a position higher than the second closing structure 252.

It should be noted that, for the miniaturization of the fresh air module 200, the opening and closing directions of the two closing structures are different.

The second closing structure 252 is opened along the front-back direction of the fresh air module 200, the third closing structure 253 is opened along the left-right direction of the fresh air module 200, and the opening directions of the two closing structures are different, so that the two closing structures do not need to be arranged in a staggered manner and can be arranged on a straight line, and the width of the fresh air module 200 is reduced.

And the position of the third closing structure 253 is higher than that of the second closing structure 252, so that the two groups of gears 272 can be distributed up and down on the structure, and the second closing structure 252 and the third closing structure 253 can avoid each other in the process of sliding the switch, thereby further reducing the volume of the fresh air module 200.

In some embodiments of the present application, as shown in fig. 13, two fresh air modules 200 are provided, and the two fresh air modules 200 are respectively disposed at two sides inside the casing.

It should be noted that, two sets of fresh air modules 200 are respectively disposed on two sides of the same indoor air conditioner 100, and the two fresh air modules 200 are respectively used for guiding out indoor air flow and guiding in outdoor air flow under the action of the first and second fan modules 240 and the second and third closing structures 253 inside the same indoor air conditioner 100, so that air exchange can be performed simultaneously in the same indoor air conditioner 100.

In some embodiments of the present application, as shown in fig. 13, the arrow direction is the air exchanging direction of the air flow, and a set of fresh air modules 200 are respectively disposed at the upper left and lower right (both sides) of the indoor air conditioner 100.

The fresh air module 200 is to be installed at a far position of the air conditioner to prevent fresh air from entering the room and directly returning to the outside through the return air inlet.

The utility model discloses an indoor air conditioner, which comprises a shell and fresh air modules respectively arranged at two sides of the shell, wherein the fresh air modules are respectively a first fresh air module and a second fresh air module, each fresh air module comprises a shell provided with a first through hole, a second through hole and a third through hole, the second through hole and the third through hole are respectively and correspondingly provided with a second closed structure and a third closed structure, the first through hole is externally connected with a fresh air pipe and is communicated with an outdoor space through the fresh air pipe, the interior of the shell is divided into a first cavity and a second cavity by a filter screen assembly, the first through hole is respectively communicated with the first cavity and the second cavity, the second through hole is arranged in the first cavity and is communicated with the first through hole through the first cavity to form a first air duct, the third through hole is arranged in the second cavity and is communicated with the first through hole through the second cavity to form a second air duct, the fresh air modules also comprise an axial flow fan module and a centrifugal fan module, the axial flow fan module is arranged in the first cavity, the air inlet portion of the axial flow fan module and the second through hole are oppositely arranged and control the on-off state of the air inlet portion of the axial flow fan module through the on-off control of the second closing device, the first closing device is arranged at the air outlet portion of the axial flow fan module and is a check valve, the air flow of the second through hole is controlled to flow in a single direction, the centrifugal fan module is arranged in the second cavity and is communicated with the first through hole through the second air channel, the filter screen is arranged between the centrifugal fan module and the first through hole, the air outlet portion of the centrifugal fan module is communicated with the third through hole through the second air channel, and the on-off state of the air inlet portion of the centrifugal fan module is controlled through the on-off control of the third closing device.

The fresh air module of the utility model can be used as a return air unit of indoor air or a fresh air unit of outdoor air by controlling the on-off states of the second closing device and the third closing device, when the fresh air module is used as the fresh air unit, the first closing structure and the second closing structure are both closed, the third closing structure is opened, outdoor fresh air enters the second air channel from the fresh air pipe through the first through hole, enters the second cavity through the filtration and purification of the filter screen, and flows into the room from the third through hole under the driving of the centrifugal fan module, so as to complete the introduction work of the outdoor fresh air, when the fresh air module is used as the return air unit, the first closing structure and the second closing structure are opened, the third closing structure is closed, the indoor air enters the first cavity from the second through hole through the check valve under the driving of the axial flow fan module, and is introduced into the fresh air pipe through the first through hole to be discharged out of the room, the work of leading the indoor air out of the room is finished.

This technical scheme is applicable to two-way fresh air conditioner, the fresh air module can be provided with two, and two fresh air modules can set up the both sides at indoor air conditioner respectively, the distance that needs guarantee two fresh air modules is separated by far away position, prevent to get into indoor new trend, it is outdoor directly to get back to through the return air inlet, when carrying out the work of indoor new trend of trading, control action through each closed structure, make two fresh air modules one be used for the outdoor work of room air derivation, another is used for the work of introducing of outdoor new trend, make two processes can go on simultaneously and not influenced each other, indoor air exchange efficiency is higher, confirm different mode, among the solution prior art scheme, trade the new wind in-process because of indoor air conditioner, indoor and outdoor air temperature has certain difference in temperature, the new trend directly gets into indoor problem that can the human body feel uncomfortable.

The utility model provides a first design, the inner structure to the new trend module has improved, it has first cavity and second cavity to divide the casing inside of new trend module, and form first wind channel and second wind channel in first cavity and second cavity, the inside first fan module that sets up of first cavity, set up the second fan module in the second cavity, utilize the drive of first fan module and second fan module, realize the two-way air change of new trend module, indoor air current is outdoor through first wind channel and new tuber pipe flow direction, and outdoor air current also can be introduced indoorly through new tuber pipe and second wind channel.

The second concept of the application, the through-hole to new trend module has been improved, first through-hole has been seted up to the casing of new trend module, second through-hole and third through-hole, first through-hole and second through-hole form first wind channel, be used for leading out indoor air current outdoor, first through-hole and third through-hole form the second wind channel, be used for leading outdoor air indoor, and be provided with second closed structure and third closed structure respectively in the corresponding position of second through-hole and third through-hole, be used for controlling opening and closing in first wind channel and second wind channel.

Those of ordinary skill in the art will understand that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an indoor air conditioner, includes the casing and sets up the new trend module in the casing inside, its characterized in that, the new trend module includes:

the shell is provided with a first through hole, a second through hole and a third through hole;

the inner space of the shell is divided into a first chamber and a second chamber, and the first chamber is communicated with the second chamber;

the first through hole is formed in the first cavity;

the second through hole is formed in the first cavity and communicated with the first through hole through the first cavity to form a first air channel;

the third through hole is formed in the second cavity and communicated with the first through hole through the second cavity and the first cavity in sequence to form a second air duct;

the second through hole and the third through hole are respectively and correspondingly provided with a second closing structure and a third closing structure, the second closing device controls the opening and closing state of the second through hole, and the third closing device controls the opening and closing state of the third through hole;

the fresh air module also comprises a first fan module and a second fan module;

the first fan module is arranged in the first cavity, and the second fan module is arranged in the second cavity;

the air inlet part of the first fan module is opposite to and communicated with the second through hole, the air inlet part of the second fan module is communicated with the first through hole through the second air duct, and the air outlet part of the second fan module is communicated with the third through hole through the second air duct;

the switching states of the second via and the third via include: an on state and an off state.

2. A room air conditioner as claimed in claim 1, wherein a screen assembly is provided inside said casing;

the screen assembly is disposed in the first chamber and the second chamber communication position and occupies an entire area of a cross section of the first chamber and the second chamber communication position inside the housing.

3. A room air conditioner as claimed in claim 1, wherein said first fan module is provided as an axial flow fan module as a return air fan;

the second fan module is used as a fresh air fan and is set as a centrifugal fan module.

4. A room air conditioner as claimed in claim 1, wherein a first closing means is provided at a position of the air outlet portion of the first fan module.

5. A room air conditioner according to claim 4, wherein said first closing means is provided as a check valve for controlling the unidirectional flow of air in said second through hole.

6. The indoor air conditioner according to claim 1, wherein the first through hole is externally connected with a fresh air duct, and the fresh air module is communicated with an outdoor space through the fresh air duct.

7. The room air conditioner of claim 1, wherein said second closing structure is slidable in a front-rear direction of said fresh air module, and said third closing structure is slidable in a left-right direction of said fresh air module;

the second closing structure and the third closing structure respectively comprise a stepping motor, a gear sleeved on a motor shaft of the stepping motor, a central control module electrically connected to the stepping motor, a closing panel and a rack arranged on the closing panel and meshed with the gear;

the second closing structure and the third closing structure adopt a gear-rack meshing structure, receive a working signal of the indoor air conditioner through the central control module, and control the stepping motor to control the closing panel to slide relative to the second through hole or the third through hole so as to control the on-off state of the second through hole or the third through hole;

wherein the third closure structure is disposed higher than the second closure structure.

8. A room air conditioner as claimed in any one of claims 2 to 7, wherein the fresh air module is operable in a fresh air mode;

when the new trend module is in the new trend mode:

the second closure structure is in a closed state and the third closure structure is in an open state;

outdoor airflow enters the second air duct through the first through hole, flows through the filter screen assembly to enter the second cavity under the driving of the second fan module, and flows into the room through the third through hole, so that the introduction of outdoor fresh air is completed;

9. A room air conditioner as claimed in any one of claims 2 to 7, wherein the fresh air module is operable in a mode including a return air mode;

when the new trend module is in the return air mode:

the second closure structure is in an open state and the third closure structure is in a closed state;

indoor air flow enters the first air channel from the second through hole under the driving of the first fan module and is discharged from the first through hole, and the work of leading indoor air out of the room is finished;

10. The indoor air conditioner according to claim 1, wherein there are two of the fresh air modules, and the two fresh air modules are respectively disposed at both sides of the inside of the cabinet.