CN216114340U - Indoor air conditioner - Google Patents

Abstract

The utility model discloses an indoor air conditioner, which is characterized in that a volute tongue is arranged at the air outlet position of a fan assembly, a first mounting part and a second mounting part are respectively arranged at the connecting position of the volute tongue and a base, the first mounting part and the second mounting part have different functions and are respectively used for fixing and supporting the volute tongue on the base, the problem of a connecting gap between the volute tongue and the base is solved, the two connecting forms are matched to be difficult to generate vibration noise at the connecting position, the second mounting part of the volute tongue also plays a role in increasing the strength of the volute tongue, the first mounting part and the second mounting part are slightly influenced by the temperature change when the air conditioner works, a clearance of a workpiece expanded by heat and cold is reserved between the volute and the base in the length direction of a machine, the problem of abnormal noise caused by the expanded by heat and cold due to the relative displacement generated by the temperature change at the connecting position of the volute tongue and the base is greatly improved, after the volute tongue and the base are assembled, the installation gap is small and uniform, and the product refinement is improved.

Description

Indoor air conditioner

Technical Field

The utility model relates to the field of internal structure design of air conditioners, in particular to an indoor air conditioner.

Background

At present, in the installation process of a fan assembly in an existing air conditioner, a volute tongue is generally arranged at the position of the air outlet of the fan assembly and used for guiding the air outlet of the fan assembly, but in the installation process of the existing volute tongue, the following problems exist.

On the one hand, along with the improvement of the attention of the user to details and the requirement of product refinement, the requirement of appearance gap between the volute tongue and the base is small and even, and on the other hand, the volute tongue is easy to deform because of the longer length, and the volute tongue is lengthened or shortened because of the change of temperature, and the noise of abnormal 'click' sound appears at the joint because of the relative displacement generated by expansion with heat and contraction with cold.

The more the trip components are arranged, the larger the noise is, therefore, limited by the working form of the indoor air conditioner, the too many trip matches can not be arranged when the volute tongue is connected with the base, and the matching trip is one of the main sources of the thermal expansion and cold contraction noise.

In the prior art, an appearance gap between a volute tongue and a base of the machine is difficult to ensure to be small, particularly a local gap far away from a clamping hook matching part is large, and the section difference between the volute tongue and the base is matched to form unevenness, so that the appearance vision of a product is poor and the fineness degree is poor.

SUMMERY OF THE UTILITY MODEL

In some embodiments of the present application, for solving the above technical problem, an indoor air conditioner is provided, a volute tongue is installed at an air outlet position of a fan assembly, an air outlet airflow flow direction of the fan assembly is guided, and the volute tongue and a base connecting position are respectively provided with a first installation part and a second installation part, a connection gap problem between the volute tongue and the base is solved, meanwhile, a gap between the volute casing and the base, which is expanded with heat and contracted with cold, of a workpiece reserved on a machine length direction is also solved by the arrangement of the first installation part and the second installation part, the volute tongue is extended or shortened due to temperature change, and the abnormal noise problem of expanded with heat and contracted with cold, which occurs in relative displacement, occurs at a joint.

In some embodiments of the application, the connection structure of the fan assembly and the base is improved, a volute tongue used for guiding the trend of the air flow is arranged at the air outlet position of the fan assembly, the volute tongue is connected to the base, the outer surface of the volute tongue is used for guiding the air flow flowing out of the fan assembly to be led out from the air outlet, the integrity of the air flow is improved, and the air outlet is even.

In some embodiments of the application, the structure of the volute tongue is improved, the volute tongue and the base are matched and fastened and installed by adopting a longitudinal first installation part, a second installation part arranged along the circumferential direction of an accommodating part in the volute tongue is arranged in a space between connection parts, a volute tongue shell and the base are supported, a gap between the assembled volute tongue and the base is reduced, meanwhile, the form of fixing of a clamping hook is reduced, and noise generated at the connection position of the volute tongue and the base is reduced.

In some embodiments of the application, an indoor air conditioner, including the casing of seting up air intake and air outlet and set up in inside fan subassembly and the heat exchange assemblies of casing, air intake and air outlet form the wind channel inside the casing, and fan subassembly and heat exchange assemblies set up inside the wind channel, and the casing is including the base that is used for installing fan subassembly and heat exchange assemblies.

A volute tongue is detachably arranged on the base corresponding to the air outlet and used for guiding airflow flowing out of the fan assembly to flow out of the air outlet, and a first installation part and a second installation part are arranged on the volute tongue;

the first installation part is used for fixing the volute tongue on the base, and the second installation part is used for supporting the volute tongue on the base.

In some embodiments of the present application, the volute tongue comprises a casing, the casing forms an integral structure of the volute tongue appearance, the outer surface of the casing is used for guiding the airflow direction, and a containing part is formed inside the casing.

The base is provided with a protruding part at a position corresponding to the mounting of the volute tongue, and the protruding part extends into the accommodating part.

In some embodiments of the present application, a first installation matching portion is disposed on the protruding portion, the first installation portion and the first installation matching portion are disposed in a position corresponding to each other, and the first installation matching portion is matched with the first installation portion to fixedly install the volute tongue on the base.

In some embodiments of the present application, the first installation portion is configured as a hook, the first installation matching portion is configured as a slot, and the hook is connected with the slot in a matching manner, so as to fixedly connect the volute tongue to the base.

In some embodiments of the application, the second installation portion is arranged inside the accommodating portion, one end of the second installation portion is fixedly connected with the inner surface of the shell, the other end of the second installation portion is in surface contact with the protruding portion, and the second installation portion supports the shell and the protruding portion in a limiting mode.

In some embodiments of the present application, the second mounting portion is provided as a rib.

In some embodiments of the present application, the first mounting portion is provided in plurality, and the plurality of first mounting portions are uniformly arrayed in an axial direction of the volute tongue.

In some embodiments of the present application, the second installation portion is provided in a plurality, and the plurality of second installation portions are uniformly arrayed inside the accommodating portion, and the plurality of second installation portions and the first installation portion are staggered along the axial direction of the volute tongue.

In some embodiments of the present application, at least two second mounting portions are disposed between two adjacent first mounting portions.

The utility model has the beneficial effects that:

1. a volute tongue is arranged at the air outlet position of the fan assembly, fills a mounting gap between the fan assembly and the base, guides airflow driven by the fan assembly to flow out from the air outlet, increases the integrity of the airflow and ensures that the air outlet is uniformly exhausted;

2. the first installation part and the second installation part have different functions and are respectively used for fixing and supporting the volute tongue on the base, so that the volute tongue is slightly influenced by temperature change when the air conditioner works, the connection relation between the volute tongue and the base is stable, vibration noise is not easily generated at the connection position due to the matching of the two connection forms, and in addition, abnormal noise caused by expansion with heat and contraction with cold due to relative displacement generated by the change of the temperature at the connection position between the volute tongue and the base is avoided;

3. inside through first installation department and base fixed connection, the second installation department of snail tongue still plays the effect that increases snail tongue intensity, has avoided the snail tongue to receive expend with heat and contract with cold's influence and warp, and after snail tongue and base assembly, its installation gap is little and even, promotes becoming more meticulous of product.

Drawings

FIG. 1 is a schematic diagram of an indoor air conditioner in accordance with some embodiments of the utility model;

fig. 2 is a schematic view of an internal structure of an indoor air conditioner in some embodiments of the present invention;

FIG. 3 is one of the schematic views of the mounting structure of the volute tongue and the base in some embodiments of the utility model;

FIG. 4 is one of the schematic views of the mounting structure of the volute tongue and the base in some embodiments of the utility model;

FIG. 5 is a schematic view of one of the volute tongue and base mounting structures of some embodiments of the present invention;

FIG. 6 is one of several schematic cross-sectional views of the volute tongue and base after installation in accordance with certain embodiments of the utility model;

FIG. 7 is one of several schematic cross-sectional views of the volute tongue and base after installation in accordance with certain embodiments of the utility model;

figure 8 is a schematic view of a volute tongue structure in accordance with some embodiments of the present invention.

Reference numerals:

the method comprises the following steps: 100. an indoor air conditioner; 200. a housing; 210. a base; 211. a projection; 212. a first mounting engagement portion; 220. a volute tongue; 221. a housing; 222. an accommodating portion; 223. a first mounting portion; 224. a second mounting portion; 300. a heat exchange assembly; 400. a fan assembly.

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, a heat exchange cycle of the indoor air conditioner 100 is performed by including a cabinet 200, a heat exchange assembly 300, and a fan assembly 400 in the conventional indoor air conditioner 100.

The cabinet 200 has mounted therein a plurality of components constituting a refrigeration cycle.

The indoor air conditioner 100 further includes a compressor and an expansion valve.

The heat exchange assembly 300 is an indoor heat exchanger, and can be used as a condenser and an evaporator.

The fan assembly 400 serves as a driving unit for air flow for driving air circulation of indoor air, and the indoor air conditioner 100 serves to exchange heat and air with respect to an indoor space.

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.

In this application, the air conditioner mainly refers to an indoor unit of the air conditioner, and in practical applications, the air conditioner is further connected with an outdoor unit, which refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, the air conditioner is connected to the outdoor unit installed in an outdoor space through a pipe, the outdoor unit of the air conditioner includes the outdoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit.

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.

For convenience of description, the refrigeration process of the air conditioner is illustrated as a typical refrigeration process, and the heat exchange assembly 300 is used as an evaporator in a refrigeration state of the air conditioner.

Based on the conventional indoor air conditioner 100, the cabinet 200 includes a front surface at least partially opened, a rear surface installed on a wall of an indoor space and provided with a mounting plate, a bottom surface defining a bottom configuration, side surfaces provided at both sides of the bottom surface, and a top surface defining a top appearance.

As shown in fig. 1-2, chassis 200 further includes a base 210 for mounting fan assembly 400 and heat exchange assembly 300.

The fan assembly 400 is fixed to the base 210.

It should be noted that the fan assembly 400 is directly connected to the base 210, the two ends of the fan assembly are installed in a manner of matching with hooks and screws, and the air outlet position of the fan assembly is spaced from the air outlet, in previous designs of air conditioner base, a guide surface is typically provided on the base, namely, the volute 220 is used for filling the portion between the air outlet position and the air outlet of the fan assembly, guiding the flow direction of the air outlet path of the fan assembly, and forming a part of the air path, but because the inside of the fan assembly 400 is a cross-flow fan, the length of the guide surface is long, so that the length of the guide surface is also long, and during the transportation and the use of the air conditioner, the position is easy to deform and even break, and because the position is also of an integrated structure with the base, if a problem occurs in this position, the entire base 210 needs to be replaced, which results in higher maintenance cost.

In the production process of the existing indoor air conditioner 100, more and more manufacturers gradually adopt a split design of the volute tongue and the base to facilitate the detachment and replacement of the volute tongue 220 part, but because the length of the volute tongue 220 is longer, the volute tongue 220 in the split design slightly deforms in the installation process, the problem of overlarge installation gap can occur after installation, the installation gap affects the product appearance to cause poor vision, and the product can be considered by users to have poor refinement degree, more importantly, the fan assembly 400 can generate larger vibration when the internal fan rotates to work, the volute tongue collides with the base 210 at the installation gap position with high frequency to generate working noise of the indoor air conditioner 100, in addition, a clearance of thermal expansion of a cold contraction part is reserved between the volute casing and the base in the machine length direction, and the 'click' sound generated by relative displacement generated by the change of the temperature at the connection part of the volute tongue 220 and the base 210, namely, abnormal noise caused by expansion with heat and contraction with cold affects the use of users.

Whereas the conventional solutions to the above problem are: adopt trip cooperation fixed mounting with snail tongue 220 and base 210, increase the quantity of trip between snail tongue 220 and base 210, utilize a plurality of trips to support the gap, but in practical application of this scheme, because heat exchange assembly 300 of indoor air conditioner 100 can release heat or refrigerate in the course of the work, receive the influence of indoor air conditioner 100's structure and working form, heat exchange assembly 300 is nearer with fan subassembly 400 distance, the trip that snail tongue 220 and base 210 are connected receives the temperature influence and produces the phenomenon of expending with heat and contracting with cold, cause to connect inseparably, when fan subassembly operation, snail tongue 220 and base 210 cause the vibration noise because the junction vibrates. In addition, a clearance for expansion with heat and contraction with cold of the finished piece is reserved between the volute and the base in the length direction of the machine, and the abnormal noise caused by expansion with heat and contraction with cold is generated due to the relative displacement generated by the change of temperature at the joint of the volute tongue 220 and the base 210.

Considering that the effect of the volute tongue 220 is to fill up the installation gap between the fan assembly 400 and the base 210, guide the air outlet of the fan assembly, and increase the integrity of the air outlet of the fan assembly, and the split design of the volute tongue 220 and the base 210 can reduce the maintenance cost of the indoor air conditioner 100, on the one hand, more importantly, in the actual working state of the fan assembly 400, not only the fastening connection between the volute tongue 220 and the base 210 is ensured, no connection gap is generated, and the visual aesthetic feeling is increased, but also the collision noise generated by the untight connection between the volute tongue 220 and the base 210 after the fixing connecting pieces in the shapes of hooks are excessively arranged and deformed due to the temperature change of the indoor air conditioner 100 is considered, in addition, the extension or shortening of the volute tongue 220 due to the influence of expansion and contraction is also generated, the noise is influenced by the number of the fixing connecting pieces, and the number of the noise is increased, the bigger the noise generated by the expansion and contraction of the volute tongue 220;

conversely, the smaller the number of the bolts, the larger the connecting gap between the tongue 220 and the base 210.

To solve the technical problem, the technical scheme of the application is as follows:

as shown in fig. 5-7, the volute tongue 220 is provided with a first mounting portion 223 and a second mounting portion 224.

The outer surface of the housing 221 forms a portion of the air duct.

The outer surface of the casing 221 is used for guiding the airflow of the fan assembly 400 to flow out, and guiding the airflow flowing out of the fan assembly 400 out of the air outlet of the indoor air conditioner 100.

The first mounting portion 223 is used to fix the tongue 220 to the base 210.

The second mounting portion 224 is used to support the volute tongue 220 to the base 210.

It should be noted that, this technical scheme adopts two kinds of different mounting forms of effect, namely first installation department 223 and second installation department 224, fix and support spacing the snail tongue 220 and install on base 210, it is little influenced by air conditioner during operation temperature variation, and the relation of connection of snail tongue 220 and base 210 is firm, two kinds of connection form cooperations are difficult to produce vibration noise at the hookup location, in addition, avoid the relative displacement that produces because of receiving the change of temperature at the hookup department of snail tongue and base abnormal noise that expands with heat and contracts with cold, after snail tongue 220 and base 210 assemble, its installation gap is little and even, promote the refinement of product.

Wherein, in one embodiment of the present application,

the volute tongue 220 includes a housing.

The housing 221 forms an outer structure of the volute tongue 220, and the housing 221 is bent and formed with a receiving portion 222 inside the bent position.

A protrusion 211 is provided on the base 210 at a position for mounting the volute tongue 220, and the protrusion 211 protrudes into the receptacle 222.

The arrangement of the accommodating part 222 and the protruding part 211 increases the stability of the connection of the volute tongue 220 with the base 210, so that the volute tongue 220 completely covers the protruding part 211.

Meanwhile, a first mounting engagement portion 212 is provided on the protrusion portion 211.

The first mounting portion 223 and the first mounting engagement portion 212 are disposed corresponding to each other;

the first mounting engagement portion 212 engages with the first mounting portion 223 to fixedly mount the volute tongue 220 on the base 210

As shown in fig. 4, the installation position of the fan assembly 400 is at the position of a solid arrow, and the installation position of the volute tongue 220 is at the position of a hollow arrow, so as to conveniently express the installation effect of the volute tongue 220, the actual installation position of the fan assembly 400 is not shown in fig. 4, and the installation position of the fan assembly 400 is the same as the installation position of the conventional indoor air conditioner 100.

It should be noted that, in an embodiment of the present application, as shown in fig. 6 to 7, the casing 221 is bent into a U shape, the accommodating portion 222 is a concave portion of the casing 221, the accommodating portion 222 is used for covering a surface of a position where the base 210 and the fan assembly 400 form an installation gap, so that the position is covered in all directions, an outflow air flow of the fan assembly is guided to the maximum extent, a portion of the protruding portion 211 of the accommodating portion extends into the inside of the U-shaped concave portion, and the volute tongue 220 is sleeved on the protruding portion 211, so as to improve connection stability,

the base 210 fixedly connects the volute tongue 220 with the base 210 by the cooperation of the first mounting portion 223 and the first mounting engagement portion 212, so that the connection stability is improved, and the second mounting portion 224 supports the space between the casing 221 and the base 210, so that the casing 221 is not easily deformed.

Based on the above-mentioned embodiment, in an embodiment of the present application, as shown in fig. 5 and 8, one end of the second mounting portion 224 is fixedly connected to the inner surface of the casing 221, one end of the second mounting portion 224 is in surface contact with the surface of the base 210, i.e., the protruding portion 211, and the second mounting portion 224 is supported between the casing 221 and the base 210.

On the other hand, the second mounting portion 224 has the same main function as the first mounting portion 223 and functions to support the space between the housing 221 and the base 210, but unlike the first mounting portion 223, the second mounting portion 224 is not actually connected and fixed to the base 210, but is only connected in surface contact, and therefore, the difference in the effect of the first mounting portion 223 in the actual operation is that:

the first mounting portion 223 is fixed, so that the connection with the base 210 is tighter, the contact area is larger, and the connection relationship between the first mounting portion 223 and the base 210 is more affected by thermal expansion and contraction.

In addition, a clearance for expansion with heat and contraction with cold of the workpiece is reserved between the volute tongue 220 and the base 210 in the length direction of the machine, and abnormal noise for expansion with heat and contraction with cold appears due to relative displacement generated by the change of temperature at the joint of the volute tongue and the base.

The reasons for the generation of the thermal expansion and cold contraction noise are as follows: because the base 210 and the volute tongue 220 are lengthened or shortened due to the temperature change, the matching structure of the base 210 and the volute tongue 220 is displaced to generate abnormal noise of expansion with heat and contraction with cold of 'rattle' sound, mainly in the length direction of the machine, and the volute tongue 220 is lengthened or shortened due to the temperature change.

The first mounting portion 223 will cause vibration noise and thermal expansion and contraction noise due to the above two conditions, and the second mounting portion 224 and the base 210 only play a certain supporting role and do not have rigid connection, so even if affected by thermal expansion and contraction, the contact area between the second mounting portion 224 and the base 210 is relatively small, and the generated vibration noise is far less than the noise generated by the first mounting portion 223.

Based on the above description, the design concept of the volute tongue 220 of the present application further includes:

as shown in fig. 8, the first mounting portion 223 is provided in plurality, and the plurality of first mounting portions 223 are uniformly arrayed in the axial direction of the volute tongue 220 at positions corresponding to the positions of the first mounting engagement portions 212 provided on the protruding portion 211.

The second mounting portion 224 is provided in plurality, and the plurality of second mounting portions 224 are uniformly arrayed inside the accommodating portion 222 in the axial direction of the volute tongue 220.

The plurality of second mounting parts 224 are staggered from the first mounting parts 223.

At least two second mounting portions 224 are disposed between two adjacent first mounting portions 223.

It should be noted that the number of the first mounting portions 223 only needs to satisfy the basic fixed relationship between the volute tongue 220 and the base 210, and the main supporting and limiting function in the length direction of the volute tongue 220 is still accomplished by the second mounting portion 224.

In one embodiment of the present application, as shown in fig. 3 to 8, the first mounting portion 223 is configured as a hook, and the first mounting mating portion 212 is configured as a slot;

the tongue 220 is fixed on the base 210 by the hook and groove fit connection.

The second mounting portion 224 is provided as a rib.

This application adopts fore-and-aft trip, locks worm tongue 220 and base 210 fixedly, and the rib of the week direction that trip department set up is kept away from to the rethread supports, reduces the deformation that fan assembly 400 installation back worm tongue produced by pressure and reduces the deformation that worm tongue 220 produced by the effect of expending with heat and contracting with cold.

It should be noted that, the basic concept of the present disclosure is to use the volute tongue 220 to guide the airflow flowing out of the fan assembly 400 to flow out of the air outlet, that is, the volute tongue 220 is used as a partial air duct between the fan assembly and the air outlet, so as to increase the integrity of the airflow of the fan assembly 400, and in addition, the number of the first installation parts 223 is reduced as much as possible, and the work of maintaining the shape of the volute tongue and supporting the gap space is mainly performed by the second installation part 224 with a smaller contact area with the base 210.

Therefore, the above-mentioned embodiment is only a preferred embodiment of the present application, and it is within the scope of the present application to adopt any form to connect the volute tongue 220 with the base 210 or to realize other support ways of the volute tongue 220.

Before this application snail tongue 220's actual installation work, carry out 3D model predeformation to snail tongue itself and handle, artificial inwards indent 0.5mm earlier for product deformation when offsetting injection moulding, in order to ensure that snail tongue 220's installation does not receive snail tongue itself to warp, with reduce the segment difference between assembly back and the base 210, in order to reach that the assembly back outward appearance gap is little and even, promote the refinement of product.

The application provides an indoor air conditioner, install the snail tongue through air-out position at fan subassembly, an air-out air current flow direction for guide fan subassembly, and snail tongue and base hookup location are provided with first installation department and second installation department respectively, the connection gap problem between snail tongue and base has been solved, the clearance of the expend with heat and contract with cold of spiral case and base reservation finished piece on machine length direction has also been solved in the setting of first installation department and second installation department simultaneously, the unusual noise problem of expend with heat and contract with cold that relative displacement that snail tongue and base produced because of receiving the change of temperature appears in the junction.

Because the effect of first installation department and second installation department is different, be used for respectively with the snail tongue fixed, support on the base, it is little that it is influenced by air conditioner during operation temperature variation, avoided the snail tongue to extend or shorten by the influence of expend with heat and contract with cold, produce expend with heat and contract with cold noise, and the relation of connection of snail tongue and base is firm, two kinds of connection form cooperations are difficult to produce vibration noise at hookup location, the inside first installation department and the base fixed connection of passing through of snail tongue, the second installation department of snail tongue still plays the effect that increases snail tongue intensity, after snail tongue and base assembly, its installation gap is little and even, promote the becoming more meticulous of product.

The first conception of this application improves the connection structure of fan subassembly and base, is provided with the snail tongue that is used for guiding the air current trend in the air-out position of fan subassembly, and snail tongue connects on the base, and the surface of snail tongue is used for guiding the air current that the fan subassembly flows out and is drawn forth by the air outlet, increases the integrality of air current, makes the air-out of air outlet even.

The second design of this application, the structure to the snail tongue has improved, adopt fore-and-aft first installation department to set up snail tongue and base cooperation fastening installation, the space setting between the junction again is along the second installation department of the circumferencial direction setting of the inside holding portion of snail tongue, support the snail tongue shell and base, reduce the gap between snail tongue assembly back and base, reduce the fixed form of trip simultaneously, reduce the vibration noise that snail tongue and base produced in hookup location and avoided the influence of the snail tongue expend with heat and contract with cold and extend or shorten, produce expend with heat and contract with cold noise.

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 (9)

1. An indoor air conditioner comprises a shell provided with an air inlet and an air outlet, and a fan assembly and a heat exchange assembly which are arranged in the shell;

the air inlet and the air outlet form an air channel in the shell, and the fan assembly and the heat exchange assembly are arranged in the air channel;

the shell comprises a base used for mounting the fan assembly and the heat exchange assembly;

the fan is characterized in that a volute tongue is detachably arranged on the base corresponding to the air outlet, and the volute tongue is used for guiding airflow flowing out of the fan assembly to flow out of the air outlet;

the volute tongue is provided with a first mounting part and a second mounting part;

the first mounting part is used for fixing the volute tongue on the base;

the second mounting part is used for supporting the volute tongue on the base.

2. A room air conditioner as set forth in claim 1, wherein said volute tongue comprises:

the casing forms an integral structure of the shape of the volute tongue, and the outer surface of the casing is used for guiding the direction of airflow;

an accommodating part is formed inside the shell;

the base is provided with a protruding part at a position corresponding to the volute tongue, and the protruding part extends into the accommodating part.

3. A room air conditioner according to claim 2, wherein said projection is provided with a first fitting engagement portion;

the first mounting part and the first mounting matching part are arranged in a mutually corresponding mode;

the first installation matching part is matched with the first installation part to fixedly install the volute tongue on the base.

4. A room air conditioner according to claim 3, wherein said first mounting portion is provided as a hook;

the first installation matching part is arranged as a clamping groove;

the clamping hook is matched and connected with the clamping groove, and the volute tongue is fixedly connected to the base.

5. A room air conditioner according to claim 2, wherein the second mounting portion is provided inside the accommodating portion, one end of the second mounting portion is fixedly connected to an inner surface of the casing, and the other end of the second mounting portion is in contact with a surface of the projecting portion;

the second installation part is opposite to the shell and supports and limits the protruding part.

6. A room air conditioner according to claim 5, wherein said second mounting portion is provided as a rib.

7. A room air conditioner according to claim 2, wherein the first mounting portion is provided in plural, and the plural first mounting portions are uniformly arrayed in an axial direction of the volute tongue.

8. A room air conditioner according to claim 7, wherein said second mounting portion is provided in plurality and a plurality of said second mounting portions are uniformly arrayed inside said accommodating portion;

the second installation parts and the first installation parts are arranged in a staggered mode along the axial direction of the volute tongue.

9. A room air conditioner according to claim 8, wherein at least two of said second mounting portions are provided between adjacent ones of said first mounting portions.

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