CN213395600U

CN213395600U - Indoor air conditioner

Info

Publication number: CN213395600U
Application number: CN202021862623.7U
Authority: CN
Inventors: 孙祥; 王云龙
Original assignee: Hisense Shandong Air Conditioning Co Ltd
Current assignee: Hisense Air Conditioning Co Ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-06-08
Anticipated expiration: 2030-08-31

Abstract

The utility model relates to an air conditioning system discloses an indoor air conditioner, including the air conditioner shell, the fresh air pipe, new trend module and crossover sub, be provided with air intake and air outlet on the air conditioner shell, the new trend module sets up inside the air conditioner shell and through fresh air pipe and air intake intercommunication, wherein, be provided with the crossover sub in the new air pipe and the new trend module's new wind gap intercommunication department, the axis of crossover sub is parallel or approximately parallel with the wind chamber of new trend module, be favorable to the direct wind chamber that gets into of new trend, avoid producing the loss or the noise of the amount of wind because the wind direction turns, the crossover sub has also increased the reliability that new air pipe and new trend module are connected simultaneously, the installation and the dismantlement of new air pipe have been made things convenient for.

Description

Indoor air conditioner

Technical Field

The utility model relates to an air conditioner new trend technical field, in particular to indoor air conditioner.

Background

The fresh air conditioner is a healthy and comfortable air conditioner with a fresh air function, realizes circulation and ventilation between room air and outdoor air, and has the function of purifying air. The fresh air module is arranged in the fresh air-conditioning indoor unit and generally comprises a fresh air pipe, an air cavity, a fan and other components, in a fresh air system, fresh air needs to be conveyed into the fresh air module through the fresh air pipe, so that the fresh air pipe and the fresh air module need to be connected in a fastening manner, and connection looseness during use is avoided; the connection between the fresh air pipe and the fresh air module needs to be convenient to disassemble, and the requirements of maintenance and cleaning and the like when a user uses the fresh air pipe and the fresh air module in daily life are met; fresh air pipe and new trend module need sealing connection, when the new trend of conveying, avoid the new trend to spill from the joint gap, cause the performance loss, the connection of fresh air pipe and new trend module needs a complicated structure just can satisfy multiple connection requirement.

SUMMERY OF THE UTILITY MODEL

In some embodiments of this application, provide an indoor air conditioner, including air conditioner shell and new trend module, be provided with air intake and air outlet on the air conditioner shell, new trend module sets up at the new trend wind gap, is provided with the fresh air pipe between new wind gap and air intake, and the fresh air pipe is used for transporting the outdoor unit new trend to the new trend module, and the junction of fresh air pipe and new trend wind gap is provided with crossover sub, when having solved the new trend and having got into new trend module, produces the problem of noise and air loss.

In some embodiments of this application, improve the connected mode of fresh air pipe and new trend module, set up crossover sub between fresh air pipe and new trend module, the application crossover sub's structure has realized the sealing connection of fresh air pipe and new trend module, and is convenient for load and unload.

In some embodiments of this application, improved the structure of crossover sub, be provided with recess and bulge on crossover sub's the lateral wall, one end and fresh air inlet spacing connection, other end and fresh air pipe spacing connection have realized with the sealing connection of fresh air inlet and fresh air pipe.

In some embodiments of this application, improved the structure of fresh air inlet, set up the installation department in fresh air inlet and crossover sub's junction, be equipped with the elasticity breach on the lateral wall of installation department, the in-process of installation dismantlement compresses tightly the elasticity breach, makes the installation department get into or extract crossover sub, when the installation dismantlement accomplish the back, lax elasticity breach, installation department and crossover sub spacing connection. The mounting part and the adapter can be mounted and dismounted more conveniently without tools and manually.

In some embodiments of this application, improve the connection structure of installation department and crossover sub, set up the constant head tank on the installation department lateral wall, set up the location muscle on the crossover sub inside wall, constant head tank and location muscle cooperation realize the axial positioning to the new trend pipe.

In some embodiments of the present application, there is provided an indoor air conditioner including: the air conditioner comprises an air conditioner shell, wherein an air inlet and an air outlet are formed in the air conditioner shell, an air channel is formed in the shell and used for guiding air in the air conditioner shell to flow out of the air outlet, and the air conditioner shell plays a role in supporting and protecting the whole structure of the air conditioner; the fresh air module is arranged in the inner space of the air conditioner shell, a fresh air port is formed in the fresh air module, and a fresh air pipe is communicated between the fresh air port and the air inlet; it is characterized by also comprising: the joint of the fresh air port and the fresh air pipe is provided with a crossover sub

In some embodiments of the present application, the fresh air module comprises: the air cavity is formed in the shell and is used for communicating the fresh air port with the air channel; the volute is arranged on one side of the shell and is communicated with the air cavity; and the fan assembly is arranged inside the volute and used for generating wind pressure in the volute and guiding the trend of airflow in the wind cavity.

In some embodiments of this application, the fresh air inlet position is connected with the installation department, the installation department specifically is: the casing is followed the protruding leg that fresh air inlet axial extension formed, the installation department is used for pegging graft crossover sub.

In some embodiments of the present application, the overall shape of the adapter is a tubular structure with two open ends, and the inner side wall of the adapter near the opening position at one end is recessed along the radial direction to form a first groove, and the adapter near the opening position at the other end is extended along the outer side wall of the adapter along the radial direction to form a second protrusion.

In some embodiments of this application, the installation department lateral wall is provided with the constant head tank, just the terminal hoop of installation department sets up first bulge, the crossover sub cover is located the installation department, just first bulge with the embedded cooperation of first recess will spacing locking of crossover sub is in on the installation department.

In some embodiments of this application, the constant head tank has been seted up on the installation department lateral wall, be provided with the location muscle on the crossover sub inside wall, just the location muscle with the constant head tank shape agrees with mutually, the crossover sub cover is located the installation department, just the location muscle with the bayonet cooperation of constant head tank is used for right the crossover sub is installed spacingly.

In some embodiments of the present application, the side wall of the mounting portion is provided with an elastic notch.

In some embodiments of the present application, the fresh air pipe is sleeved at one end of the adapter, and is in contact with the second protrusion for limiting.

Drawings

FIG. 1 is an external structural view of an air conditioner according to an embodiment of the present invention;

FIG. 2 is a partial internal structure diagram of an air conditioner according to an embodiment of the present invention;

fig. 3 is one of the external structure diagrams of the fresh air module according to the embodiment of the present invention;

FIG. 4 is a block diagram of a volute and fan assembly according to an embodiment of the present invention;

FIG. 5 is a block diagram of a fan assembly according to an embodiment of the present invention;

fig. 6 is one of the external structure diagrams of the fresh air module according to the embodiment of the present invention;

FIG. 7 is a connection diagram of a fresh air duct and an adapter according to an embodiment of the present invention;

FIG. 8 is a connection diagram of the fresh air duct, the crossover joint and the fresh air module according to the embodiment of the present invention;

fig. 9 is a cross-sectional view taken along plane E-E of fig. 6 in an embodiment of the present invention;

fig. 10 is a detailed view of the embodiment of the present invention at a in fig. 7;

FIG. 11 is a view showing a structure of the mounting part according to the embodiment of the present invention;

fig. 12 is a structural diagram of an adapter in an embodiment of the invention.

In the figure, 100, an indoor air conditioner; 101. an air duct; 200. an air conditioner housing; 201. an air inlet; 202. an air outlet; 300. a fresh air module; 310. a housing; 311. a fresh air port; 312. A fresh air duct; 313. an upper cover; 314. a lower cover; 320. a wind cavity; 330. a volute; 340. a fan assembly; 341. a fan; 342. a motor; 350. a crossover sub; 351. a first groove; 352. A second projection; 353. positioning ribs; 360. an installation part; 361. a first projecting portion; 362. An elastic notch; 363. and (6) positioning a groove.

Detailed Description

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

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.

The air conditioner performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and a heat exchanger. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the 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 the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the 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 heat exchanger 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 heat exchanger may achieve a cooling effect by exchanging heat with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the indoor space throughout the cycle.

The outdoor unit of the air conditioner refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, the indoor unit of the air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit.

The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or a heat exchanger. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater in a heating mode, and when the indoor heat exchanger is used as a heat exchanger, the air conditioner is used as a cooler in a cooling mode.

As shown in fig. 1 and 2, according to an embodiment of the present disclosure, an indoor air conditioner 100 includes an air conditioner case 200 and a fresh air module 300, the air conditioner case 200 generally supports and protects the air conditioner and forms a cavity, a plurality of components of the indoor air conditioner 100 are disposed inside the air conditioner case 200, an air inlet 201 and an air outlet 202 are disposed on the air conditioner case 200, and an air duct 101 is disposed inside the air conditioner case 200. The fresh air module 300 is arranged inside the air conditioner shell 200, fresh air enters the fresh air module 300 from the air inlet 201, flows to the air duct 101 after passing through the fresh air module 300, flows to the air outlet 202 in the air duct 101 and is discharged out of the air conditioner, and indoor temperature and air quality are adjusted.

According to the embodiment of the application, as shown in fig. 2-6, the fresh air module 300 is disposed inside the air conditioner casing 200, the fresh air module 300 transmits fresh air from the outside to the air duct 101, and then enters the room from the air conditioner air outlet 202, the fresh air module 300 includes a housing 310, an air cavity 320, a volute 330 and a fan assembly 340, the housing 310 plays a role in overall supporting and protecting the fresh air module 300, the housing 310 is provided with a fresh air inlet 311, and the fresh air inlet 311 is connected with a fresh air pipe 312 for transmitting fresh air into the fresh air module 300; the space formed inside the casing 310 is the air cavity 320, and after the fresh air enters the fresh air module 300 from the fresh air inlet 311, the fresh air is conveyed into the air duct 101 by the airflow direction in the air cavity 320, and then enters the room. In some implementations of the present application, the housing 310 is provided as two shells, the two shells are an upper cover 313 and a lower cover 314, the combined structure of the upper cover 313 and the lower cover 314 is mutually covered, and the upper cover 313 and the lower cover 314 are fixed by a snap connection.

It should be noted that, the casing 310 is provided with the structure of the upper cover 313 and the lower cover 314, so that the manufacturing difficulty is reduced, and the connection mode is snap connection, so that the casing 310 is disassembled, and the assembly, disassembly, maintenance and cleaning of the internal components of the casing 310 are facilitated.

According to some embodiments of the present application, as shown in fig. 3, 4 and 5, a volute 330 is disposed in the fresh air module 300, the volute 330 is communicated with the air chamber 320, a fan assembly 340 is disposed inside the volute 330, airflow in the volute 330 is guided, the fan assembly 340 includes a fan 341 and a motor 342, the motor 342 drives the fan 341 to rotate, wind pressure is generated inside the volute 330, and air in the air chamber 320 is driven to flow in one direction, so that airflow in the air chamber 320 flows into the air duct 101.

It should be noted that, the fan assembly 340 rotates in the volute 330 to drive the fresh air to enter the volute 330, the structural end surface of the volute 330 gradually decreases, the airflow uniformly flows out in the designated direction according to the structure of the volute 330, and the volute 330 with a proper size is adopted to guide the wind direction, so that the wind loss is reduced, and the uniform airflow flows to the wind channel 101.

According to some embodiments of the present application, the fresh air enters the fresh air pipe 312, enters the fresh air module 300 through the fresh air inlet 311, the fan assembly 340 in the fresh air module 300 rotates, so that the air pressure inside the volute 330 rises to generate an air flow, the fresh air flows toward the air duct 101 according to the trend of the air flow in the air cavity 320, and the fresh air passes through the indoor heat exchanger in the air duct 101 to obtain the fresh air at the temperature preset by the user, and is exhausted to the indoor environment through the air outlet 202. In general, the flow direction of the fresh air in the indoor air conditioner 100 is: the fresh air pipe 312, the fresh air opening 311, the fresh air module 300, the air cavity 320, the air duct 101 and the air outlet 202.

It should be noted that, the fresh air conditioner conveys fresh air indoors, natural air is utilized to complete ventilation in a closed indoor environment and outdoors, air quality is guaranteed, oxygen content and freshness of indoor air are improved, the fresh air flows through the fresh air pipe 312, the fresh air port 311, the air cavity 320, the air duct 101 and the air outlet 202, the whole structure is simple and easy under the condition that fresh air is conveyed indoors, only the motor 342 is needed for the power assembly in the process, the air supply flow is simplified, and energy consumption is reduced.

According to some embodiments of the present application, as shown in fig. 7 to 11, an adapter 350 is provided at a connection of the fresh air opening 311 and the fresh air pipe 312 for connecting the fresh air opening 311 and the fresh air pipe 312, and an installation part 360 is provided at the fresh air opening 311 for connecting the fresh air opening 311 and the adapter 350. The mounting part 360 is arranged at the tail end of the fresh air opening 311, the mounting part 360 is a protruding surrounding wall which extends outwards from the fresh air opening 311 in the axial direction, a first protruding part 361 is arranged at the tail end of the mounting part 360, the first protruding part 361 is a protrusion which extends outwards from the tail end of the mounting part 360 in the radial direction, and the first protruding part 361 is used for being connected with the conversion joint 350 in a limiting mode; an elastic notch 362 is formed at an open end edge of the mounting portion 360 for assembling and disassembling the connection between the mounting portion 360 and the adapter 350, and in some embodiments, the width of the elastic notch 362 is set to 1 MM to 3 MM.

It should be noted that, the first protruding portion 361 and the adapter 350 are connected in a limiting manner, and the self-structure is used for connection, so that the connection effect is tighter, the long-time use can be maintained, the connection positions of the installation portion 360 and the adapter 350 are both outside the pipeline, the inside of the pipeline is in a smooth state, the pipeline space is not changed in pipeline diameter, and when new air enters, the pressure generated by the new air at the diameter change position is avoided, and the influence on the air volume and the air speed is caused.

It should be further noted that, in the process of installation and disassembly, the elastic notch 362 is pressed to enable the installation portion 360 to enter or be pulled out of the adapter 350, after the installation and disassembly are completed, the elastic notch 362 is loosened, the size of the elastic notch 362 needs to be limited, the notch is too small, the elasticity is insufficient, the installation and disassembly cannot be completed, and if the size of the elastic notch 362 is too large, the connection is too loose, the sealing connection cannot be performed, and air leakage is caused. The elastic notch 362 with a proper size is selected for limiting connection of the installation part 360 and the adapter 350, so that the installation part 360 and the adapter 350 can be assembled and disassembled more conveniently without tools and manually.

According to some embodiments of the present application, as shown in fig. 10 and 12, the adapter 350 is a tubular structure with two open ends, one end of the adapter 350 is connected with the mounting portion 360, and the other end is connected with the fresh air pipe 312, the adapter 350 is provided with two dimensions, wherein the diameter of the inner side wall of the end connected with the mounting portion 360 is the same as the diameter of the outer side wall of the mounting portion 360, that is, when the adapter 350 is connected with the mounting portion 360, the inner side wall of the adapter 350 is attached with the outer side wall of the mounting portion 360, and a first groove 351 is provided, the first groove 351 is provided on the inner side wall of the adapter 350, and is located at the connection position of the two dimensions, and the first groove 351 is matched with the first protrusion 361 in size for limited connection with the first protrusion 361; wherein the inside wall diameter of the one end that crossover sub 350 and fresh air inlet 311 are connected equals with the inside wall diameter of installation department 360, first recess 351 and the cooperation of first bulge 361 are connected the back, the inside wall surface of crossover sub 350 and installation department 360 is smooth, the position that the crossover sub 350 other end and fresh air pipe 312 are connected is provided with second bulge 352 simultaneously, second bulge 352 is the arch of following the outside extension of crossover sub 350 radial direction, the position is not close to the end of crossover sub 350, reserve partly axial distance for fresh air pipe 312's cooperation.

It should be noted that, as shown in fig. 10, an adapter 350 is disposed between the mounting portion 360 and the fresh air duct 312, the adapter 350 is configured to sleeve the mounting portion 360 by setting two sections of diameters, a first groove 351 is disposed at a position corresponding to a first protruding portion 361 at the end of the mounting portion 360, the first groove 351 is connected to the first protruding portion 361 in a limiting manner, and a good sealing property of a connection position can be obtained by a "return" shaped structure of the groove and the protruding portion, thereby avoiding performance loss caused by air leakage when the fresh air module 300 operates.

The connection of the mounting portion 360 and the adapter 350 has two embodiments, among which:

example 1:

according to some embodiments of the present application, as shown in fig. 10 and 11, the mounting portion 360 is provided with a first protrusion 361 and a positioning groove 363, the positioning groove 363 is provided on a port of the mounting portion 360 and is a recessed opening in an axial direction of the port, the adapter 350 is provided with a first groove 351 and a positioning rib 353, the positioning rib 353 is provided on a plane where the first groove 351 is located and extends axially from the plane to a connecting end of the mounting portion 360 to obtain the positioning rib 353, the positioning groove 363 and the positioning rib 353 are matched in shape and size, the adapter 350 is sleeved on the mounting portion 360, an inner side wall of a portion with a large diameter in the adapter 350 is sleeved on the mounting portion 360 and is attached to an outer side wall of the mounting portion 360, the first protrusion 361 and the first groove are in limit fit for axially positioning and fixing the adapter 350 and the mounting portion 360, and an axis of the adapter 350 is parallel or approximately parallel to an axis of the mounting portion 360, the positioning rib 353 is in limit fit with the positioning groove 363 and is used for circumferentially and rotationally positioning and fixing the conversion joint 350 and the mounting part 360. In other embodiments of the present application, the shapes of the positioning slot 363 and the positioning rib 353 are set to be "V", the shapes of the positioning slot 363 and the positioning rib 353 are not limited, and any shape that can be used for positioning belongs to the protection scope of the present application.

It should be noted that, at the position where the mounting portion 360 and the adapter 350 are connected, the positioning groove 363 and the positioning rib 353 are provided, and the positioning groove 363 and the positioning rib 353 are matched with each other, so that circumferential rotation positioning and fixing of the mounting portion 360 and the adapter 350 are realized, circumferential rotation of the two pipelines is limited, and it is ensured that the adapter 350 is assembled to a specified position.

It should be further noted that, as shown in fig. 10, the adapter 350 is sleeved on the mounting portion 360, the first protrusion 361 and the first groove 351 are matched to form a square-shaped structure, the square-shaped structure has a good sealing effect, when fresh air is transmitted to the joint of the adapter 350 and the mounting portion 360, air leakage occurs, the mounting portion 360 and the adapter 350 are axially limited by the first protrusion 361 and the first groove 351, the axial line of the adapter 350 and the axial line of the mounting portion 360 are parallel or approximately parallel, the fresh air directly enters the fresh air inlet 311, the air duct does not turn, and when the wind direction turns, the wind direction is prevented from colliding with the pipeline or being too large in friction, so that air volume loss is caused, or noise is generated.

Example 2:

in an embodiment of the present application (not shown in the figures), an external thread is disposed on the outer sidewall of the mounting portion 360, an internal thread is disposed on the inner sidewall of one end of the adapter 350 connected to the mounting portion 360, the adapter 350 includes two sections of diameter sizes, wherein one end of the inner sidewall diameter equal to the outer sidewall diameter of the mounting portion 360 is provided with an internal thread, the thread pitch of the external thread and the internal thread and the size of the guide distance are matched with each other, the adapter 350 is connected to the mounting portion 360 through a thread, and the adapter 350 is screwed to the mounting portion 360 through rotation of the adapter 350 and the mounting portion, so as to.

It should be noted that, the mounting portion 360 and the adapter 350 are connected by a screw thread, and the mounting portion 360 and the adapter 350 are axially fixed and radially fixed by a screw thread structure, and the sealing degree is increased by increasing the length of the screw thread, so as to form a sealing environment and avoid air leakage.

In an embodiment of the present application, as shown in fig. 10, the adapter 350 is provided with two dimensions, wherein the diameter of the outer sidewall of the end connected with the fresh air pipe 312 is equal to the diameter of the inner sidewall of the fresh air pipe 312, the end connected with the fresh air pipe 312 is provided with a second protrusion 352, the second protrusion 352 is a protrusion extending outward along the radial direction of the adapter 350, the position of the protrusion is not close to the end of the adapter 350, a part of axial distance is reserved for the fit of the fresh air pipe 312, the fresh air pipe 312 is sleeved on the reserved portion of the adapter 350, and contacts with the second protrusion 352 for limiting, and a sealing collar is provided at the joint of the second protrusion 352 and the fresh air pipe 312 to prevent air leakage of the fresh air pipe 312.

In an embodiment of this application, the new trend transports the one end of the second bulge 352 of crossover sub 350 in new trend pipe 312, and the new trend passes through first recess 351 and the first bulge 361 junction in crossover sub 350, enters into installation department 360, and then gets into new trend module 300 from new trend mouth 311, and on the whole, the new trend is from new trend pipe 312 to new trend module 300's flow direction: the fresh air pipe 312-the second protrusion 352 of the adapter 350-the first groove 351 of the adapter 350-the mounting part 360-the first protrusion 361-the fresh air opening 311-the fresh air module 300.

In the adapter 350 provided by some embodiments of the present application, the adapter 350 is a tubular structure with two open sides and has two diameter portions, wherein the diameter of the inner side surface of the portion with a smaller diameter is equal to the diameter of the inner side surface of the mounting portion 360, the diameter of the outer side surface is equal to the diameter of the inner side surface of the fresh air pipe 312, a part of limiting distance is reserved at the port with a smaller diameter, and a second protruding portion 352 is arranged behind the limiting distance and is an outward protrusion in the radial direction. In addition, the diameter of the inner side face of the part with the larger diameter is equal to that of the outer side face of the mounting part 360, a first groove 351 is arranged at the joint of the two diameters, the first groove 351 is arranged at the part with the larger diameter, and V-shaped positioning ribs 353 extend out of the positioning shoulders with the two diameters in the axial direction and the direction of the port with the larger diameter. According to the first concept of the application, the connection mode of the fresh air pipe and the fresh air module is improved, the adapter is arranged between the fresh air pipe and the fresh air module, the sealing connection of the fresh air pipe and the fresh air module is realized by applying the structure of the adapter, and the fresh air pipe and the fresh air module are convenient to assemble and disassemble.

According to the second concept of the application, the structure of the adapter is improved, the groove and the protruding portion are arranged on the side wall of the adapter, one end of the adapter is in limit connection with the fresh air port, the other end of the adapter is in limit connection with the fresh air pipe, and the seal connection with the fresh air port and the fresh air pipe is achieved.

According to the third design of this application, improved the structure in fresh air mouth, set up the installation department in fresh air mouth and crossover sub's junction, be equipped with the elasticity breach on the lateral wall of installation department, the in-process of installation dismantlement compresses tightly the elasticity breach, makes the installation department get into or extract crossover sub, when the installation dismantlement accomplish the back, lax the elasticity breach, installation department and crossover sub spacing connection. The mounting part and the adapter can be mounted and dismounted more conveniently without tools and manually.

According to the fourth design of this application, improve the location structure of installation department and crossover sub, set up the constant head tank on the installation department lateral wall, set up the location muscle on the crossover sub inside wall, constant head tank and location muscle cooperation realize the axial positioning to the fresh air pipe.

According to the fifth concept of the application, the connecting structure of the installation part and the adapter is improved, the adapter is provided with two diameter parts, the part with large diameter is sleeved on the installation part and is connected with the installation part in a limiting way through the groove and the protrusion, the axis of the adapter is parallel to the axis of the installation part, the fresh air passes through a straight line path, and the wind direction is prevented from colliding with a pipeline or causing overlarge friction to result in the loss of the air volume or generate noise when the wind direction turns.

According to the sixth concept of the application, the connection of the conversion joint and the fresh air pipe is improved, the second protruding portion is arranged on the conversion joint, the diameter of the outer side wall of the conversion joint is equal to that of the inner side wall of the fresh air pipe, the port of the conversion joint is sleeved with the fresh air pipe, the second protruding portion is in contact limit, the sealing ferrule is arranged at the contact position, and the sealing connection of the fresh air pipe and the conversion street is achieved.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An indoor air conditioner comprising:

the air conditioner comprises an air conditioner shell, wherein an air inlet and an air outlet are formed in the air conditioner shell, an air channel is formed in the shell and used for guiding air in the air conditioner shell to flow out of the air outlet, and the air conditioner shell plays a role in supporting and protecting the whole structure of the air conditioner;

the fresh air module is arranged in the inner space of the air conditioner shell, a fresh air port is formed in the fresh air module, and a fresh air pipe is communicated between the fresh air port and the air inlet;

it is characterized by also comprising:

and a joint of the fresh air inlet and the fresh air pipe is provided with a crossover sub.

2. The room air conditioner of claim 1 wherein said fresh air module comprises:

the air cavity is formed in the shell and is used for communicating the fresh air port with the air channel;

the volute is arranged on one side of the shell and is communicated with the air cavity;

and the fan assembly is arranged inside the volute and used for generating wind pressure in the volute and guiding the trend of airflow in the wind cavity.

3. The indoor air conditioner according to claim 1, wherein the fresh air inlet is connected to an installation part, and the installation part is specifically: the casing is followed the protruding leg that fresh air inlet axial extension formed, the installation department is used for pegging graft crossover sub.

4. A room air conditioner according to claim 1, wherein said switching joint is formed in an overall shape of a tubular structure with both ends open, and an inner side wall of said switching joint near an opening position at one end is recessed in a radial direction to form a first groove, and a second protrusion is formed on an outer side wall of said switching joint near an opening position at the other end in a radial direction.

5. A room air conditioner according to claim 3 or 4, characterized in that a positioning groove is provided on the side wall of the mounting portion, and a first protrusion is provided annularly at the end of the mounting portion, the adapter is sleeved on the mounting portion, and the first protrusion is in embedded fit with the first groove to limit and lock the adapter on the mounting portion.

6. The indoor air conditioner as claimed in claim 3 or 4, wherein a positioning groove is formed on an outer side wall of the mounting portion, a positioning rib is arranged on an inner side wall of the adapter, the positioning rib is matched with the positioning groove in shape, the adapter is sleeved on the mounting portion, and the positioning rib is in plug-in fit with the positioning groove and used for limiting the installation of the adapter.

7. A room air conditioner according to claim 3, wherein said mounting portion has an elastic notch formed in a side wall thereof.

8. The indoor air conditioner according to claim 4, wherein the fresh air duct is fitted over an end of the adapter and is restricted by contact with the second protrusion.