CN219063736U - Chassis of air conditioner indoor unit and air conditioner indoor unit - Google Patents

Abstract

The utility model discloses a chassis of an air conditioner indoor unit and the air conditioner indoor unit, wherein the chassis of the air conditioner indoor unit comprises: the chassis defines an air outlet channel, the air outlet channel is provided with an air outlet, and at least the channel wall of the air outlet channel adjacent to the air outlet is provided with a hollow cavity. According to the chassis of the air indoor unit provided by the embodiment of the utility model, the hollow cavity is arranged in the channel wall adjacent to the air outlet, the hollow cavity separates cold air in the air outlet channel from indoor air, the hollow cavity plays a role in heat preservation, and the overlarge temperature of the outer surface of the channel wall and the indoor air is avoided, so that condensed water is avoided from being generated by condensing water vapor in the indoor air. The chassis structure also has the advantages of low production cost, uneasy production of working noise and the like.

Description

Chassis of air conditioner indoor unit and air conditioner indoor unit

Technical Field

The utility model relates to the technical field of air conditioners, in particular to a chassis of an air conditioner indoor unit and the air conditioner indoor unit.

Background

When the air conditioner indoor unit works in refrigeration, cold air is blown out to the air outlet, the chassis of the air conditioner indoor unit is in direct contact with the cold air, the temperature of the chassis is affected by the cold air, the temperature difference between the temperature of the chassis and the temperature of the indoor is large, and indoor steam contacted with the chassis is easy to liquefy to generate condensed water.

In the related art, the heat is preserved by sticking the sponge or the foam to reduce the generation of the dew at the air outlet position, but the time for installing the sponge or the foam is 40 seconds, and the mode generates additional working procedures and increases the material cost. In addition, foam can produce the noise when expend with heat and contract with cold, influences the use experience.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to provide a chassis of an air conditioner indoor unit, which avoids condensed water generated at an air outlet of the air conditioner indoor unit by providing a hollow cavity.

Another object of the present utility model is to provide an indoor unit of an air conditioner having the chassis.

According to an embodiment of the utility model, a chassis of an indoor unit of an air conditioner comprises: the chassis defines an air outlet channel, the air outlet channel is provided with an air outlet, and at least the channel wall of the air outlet channel adjacent to the air outlet is provided with a hollow cavity.

According to the chassis of the air indoor unit provided by the embodiment of the utility model, the hollow cavity is arranged in the channel wall adjacent to the air outlet, the hollow cavity separates cold air in the air outlet channel from indoor air, the hollow cavity plays a role in heat preservation, and the overlarge temperature difference between the outer surface of the channel wall and the indoor air is avoided, so that condensed water is avoided from being generated by condensing water vapor in the indoor air. The chassis structure also has the advantages of low production cost, uneasy production of working noise and the like.

In addition, the chassis of the indoor unit of the air conditioner according to the above embodiment of the present utility model may further have the following additional technical features:

according to some embodiments of the utility model, the hollow cavity is fabricated by a gas-or water-assisted injection molding process.

According to some embodiments of the utility model, the portion of the channel wall having the hollow cavity has a thickness of 4.5-7 mm.

According to some embodiments of the utility model, the hollow cavity has a thickness of 1.5-4 mm and the hollow cavity has a cavity wall thickness of 1.5-2 mm.

According to some embodiments of the utility model, a wind wheel is arranged in the wind outlet channel, and the height difference between the upper end of the hollow cavity and the rotation axis of the wind wheel is less than or equal to 40mm.

According to some embodiments of the utility model, the rear side channel wall of the air outlet channel comprises an outer extension extending downwards and outwards obliquely and an inner extension extending downwards and inwards obliquely, the upper end of the inner extension is connected with the lower end of the outer extension, the inner extension is provided with the hollow cavity, and the outer extension is provided with a first water guide rib.

According to some embodiments of the utility model, the chassis of the indoor unit of an air conditioner is characterized in that a second water guide rib is arranged at a connection part of the inner extension section and the outer extension section, and a part of the hollow cavity is formed on the second water guide rib.

According to some embodiments of the utility model, the chassis of the indoor unit of the air conditioner is characterized in that the chassis is provided with a connecting section, the connecting section is used for being connected with a face frame of the indoor unit of the air conditioner, a rear side channel wall of the air outlet channel is connected with the connecting section, and the lower end of the hollow cavity arranged on the rear side channel wall is level with the connecting section.

According to some embodiments of the utility model, the extension length of the hollow cavity is greater than or equal to the extension length of the air outlet in the left-right direction of the chassis.

The air conditioner indoor unit according to the embodiment of the utility model comprises the chassis of the air conditioner indoor unit according to the embodiment of the utility model.

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

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic structural view of an indoor unit of an air conditioner according to an embodiment of the present utility model;

FIG. 2 is a schematic structural view of the front of a chassis according to an embodiment of the present utility model;

FIG. 3 is a schematic view of the structure of the back of the chassis according to an embodiment of the present utility model;

FIG. 4 is a schematic structural view of a chassis according to an embodiment of the present utility model;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;

fig. 6 is a schematic diagram of the operation of the gas-assist injection molding process.

Reference numerals:

a chassis 100;

an air outlet passage 10; an air outlet 20; a hollow cavity 301;

a channel wall 40; a rear channel wall 410; an outer extension 411; first water guide rib 4111; second water guide ribs 4112; an inner extension 412; a front channel wall 420;

a connecting section 50;

an air conditioning indoor unit 200; a face frame 210; and an air deflector 220.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the description of the utility model, "a first feature" may include one or more such features, and "a plurality" may mean two or more, and that a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, or may include both the first and second features not being in direct contact but being in contact with each other through additional features therebetween, with the first feature "above", "over" and "above" the second feature including both the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature.

The chassis 100 of the air conditioner indoor unit 200 according to the embodiment of the present utility model is described below with reference to the accompanying drawings.

Referring to fig. 1 to 5, a chassis 100 of an air conditioner indoor unit 200 according to an embodiment of the present utility model may include: an air outlet channel 10, an air outlet 20 and a hollow cavity 301.

Specifically, during the refrigerating operation of the indoor unit 200, the heat exchanger of the indoor unit 200 exchanges heat to obtain cold air, the generated cold air passes through the air outlet channel 10 and is conveyed to the room by the air outlet 20, the temperature in the air outlet channel 10 is lower than the indoor temperature, and the temperature difference between the two air outlets is adjacent to the air outlet 20, so that water vapor in the indoor air is liquefied to generate condensed water, if no measures are taken, bacteria are easy to grow in the condensed water attached to the outer surface of the chassis 100 for a long time, and furniture in the room may be dripped under the action of gravity, thereby affecting the use experience of the air conditioner.

In some related technologies, by sticking sponge or foam at the air outlet to reduce the temperature difference between indoor air and cold air in the air outlet channel, condensation water is avoided, and the mode needs to generate additional working procedures, needs additional materials, and increases the processing cost.

As shown in fig. 5, by providing the hollow cavity 301 on at least the channel wall 40 adjacent to the air outlet 20, the hollow cavity 301 can separate the cool air and the indoor air in the air outlet channel 10, so as to perform a heat preservation function, prevent the temperature of the outer surface of the channel wall 40, which is in contact with the indoor air, from being supercooled, reduce the temperature difference between the outer surface of the channel wall 40 and the indoor air, and avoid condensation.

In the working process of the indoor unit 200, the condensed water is more easily generated at the air outlet 20, and if the condensed water is generated at the air outlet 20, the condensed water may be blown into the room along with the cold air at the air outlet 20, so that the indoor humidity is affected, and the use experience is further affected. It is therefore within the scope of the present utility model to provide a hollow cavity 301 at least at a location where condensate water is more likely to be generated, i.e., at least at the channel wall 40 adjacent to the air outlet 20, so as to effectively improve the problem of condensation, in other words, only a portion of the channel wall 40 adjacent to the air outlet 20 may be provided with the hollow cavity 301, or the entire channel wall 40 may be provided with the hollow cavity 301.

Compared with the prior art of pasting sponge or foam, the hollow cavity 301 is arranged to achieve the anti-condensation effect, so that additional pasting procedures can be reduced, the cost of manpower and material resources is saved, the production time is greatly reduced, and the production efficiency is improved. In addition, during the working process of the indoor unit 200, the hollow cavity 301 can not generate noise due to the influence of factors such as thermal expansion and cold contraction, and the use experience of a user is greatly improved.

According to the chassis 100 of the air indoor unit 200 in the embodiment of the utility model, the hollow cavity 301 is arranged in the channel wall 40 adjacent to the air outlet 20, the hollow cavity 301 separates cold air in the air outlet channel 10 from indoor air, the hollow cavity 301 plays a role in heat preservation, and the overlarge temperature difference between the outer surface of the channel wall 40 and the indoor air is avoided, so that condensation water is avoided from being generated by condensation of water vapor in the indoor air on the channel wall 40. The chassis 100 also has the advantages of low production cost, low possibility of generating working noise and the like.

According to some embodiments of the present utility model, as shown in fig. 6, the hollow cavity 301 may be manufactured by a gas-assisted injection molding process, or may be manufactured by a water-assisted injection molding process. Through the processing of the process, the chassis 100 has a hollow cavity 301 structure after injection molding, and the hollow cavity 301 is obtained without subsequent manual assembly, pasting and other operations, so that the labor cost is effectively reduced, and the production efficiency is improved. And the sealing of the hollow cavity 301 is facilitated to be realized, so that the heat preservation and heat insulation effects are further improved, and the condensation prevention effect is improved.

Specifically, in the processing of the gas-assist injection molding process, the passage wall 40 provided with the hollow cavity 301 has good performance, can eliminate the air holes and the depressions of the cavity wall of the hollow cavity 301, and reduce the internal stress and the warp deformation in the processing, thereby reducing the residual stress in the cavity wall and preventing the deformation of the cavity wall of the hollow cavity 301

In the water-assisted injection molding process, the passage wall 40 provided with the hollow cavity 301 has a short production cycle, and the cooling medium is inexpensive, thereby reducing the processing cost. And the gas is compressible and the water is incompressible, the use of water-assisted injection molding enables the production of a hollow cavity 301 having a thicker cavity wall than gas-assisted injection molding.

In some embodiments, the portion of the channel wall 40 having the hollow cavity 301 may have a thickness of 4.5-7 mm, in particular, the thickness may be 4.5mm, 6mm, 7mm, etc. The thicker the thickness of the portion of the channel wall 40 having the hollow cavity 301, the better the heat-insulating effect of the channel wall 40, and the better the effect of reducing the temperature difference between the indoor air and the outer surface of the channel wall 40, and the more advantageous it is to avoid condensation of water vapor in the indoor air. The portion of the channel wall 40 having the hollow cavity 301 is formed by adding one layer of material thickness to one layer of cavity and adding one layer of material thickness to the other layer of cavity.

The thickness of the portion of the channel wall 40 having the hollow cavity 301 in actual processing may be set in the interval of 4.5 to 7mm according to actual conditions.

In some embodiments, as shown in fig. 5, the thickness of the hollow cavity 301 is 1.5-4 mm, specifically, the thickness of the hollow cavity 301 may be 1.5mm, 3mm, 4mm, etc.

And, the greater the thickness of the hollow cavity 301, the greater the distance between the cavity walls of the hollow cavity 301, the better the heat preservation effect of the hollow cavity 301, and the temperature of the outer surface of the channel wall 40 contacting with the indoor air can approach the room temperature, so as to avoid condensation of water vapor in the indoor air.

However, if the thickness of the hollow cavity 301 is too large, the portion of the channel wall 40 having the hollow cavity 301 is too thick, resulting in an insufficiently compact structure of the channel wall 40 and possible occurrence of positional interference, and thus the thickness of the hollow cavity 301 has an upper limit.

If the thickness of the hollow cavity 301 is too small, there is a risk that the insulation effect cannot be achieved to isolate cold air, so that the thickness of the hollow cavity 301 has a lower limit.

Further, as shown in fig. 5, the cavity wall thickness of the hollow cavity 301 is 1.5 to 2mm, specifically, the cavity wall thickness of the hollow cavity 301 may be 1.5mm, 1.8mm, 2mm, or the like.

In addition, the larger the thickness of the cavity wall of the hollow cavity 301, the more favorable it is to reduce the temperature difference between the outer surface of the channel wall 40 and the indoor air, in other words, the larger the thickness of the cavity wall of the hollow cavity 301, the better the heat preservation effect of the hollow cavity 301 can be achieved, and the less easy the condensation of the water vapor in the indoor air.

However, since the portion of the channel wall 40 having the hollow cavity 301 is formed of a layer of material thickness plus a layer of cavity thickness plus a layer of material thickness, the greater the cavity wall thickness of the hollow cavity 301, the more material is required and the more cost of processing increases. Therefore, the actual processing can be set according to the interval of 1.5-2 mm, so that the anti-condensation effect is ensured and the cost is reduced.

According to some embodiments of the present utility model, a wind wheel is disposed in the air outlet channel 10, and the wind wheel is used for dispersing the generated cold air in the air outlet channel 10 and delivering the cold air into a room through the air outlet 20.

It should be noted that, the difference in height between the upper end of the hollow cavity 301 and the rotation axis of the wind wheel is less than or equal to 40mm. In some embodiments, as shown in fig. 4 and 5, the channel wall 40 includes a front channel wall 420 and a rear channel wall 410, the height difference between the upper end of the hollow cavity 301 in the front channel wall 420 and the rotational axis of the wind wheel is L2, and the height difference between the upper end of the hollow cavity 301 in the rear channel wall 410 and the rotational axis of the wind wheel is L1, and both L1 and L2 are less than or equal to 40mm.

In some embodiments, as shown in fig. 5, the upper end of the hollow cavity 301 is located below the rotational axis of the wind wheel, and the height difference between the upper end of the hollow cavity 301 and the rotational axis of the wind wheel may be 40mm, 20mm, 10mm, etc.

The smaller the distance between the upper end of the hollow cavity 301 and the rotational axis of the wind wheel, i.e. the closer the upper end of the hollow cavity 301 is to the rotational axis, the larger the coverage of the hollow cavity 301 in the channel wall 40, the better the anti-condensation effect can be achieved.

In other embodiments, the upper end of the hollow cavity 301 is located above the rotational axis of the wind wheel, and the difference in height between the upper end of the hollow cavity 301 and the rotational axis of the wind wheel may be 40mm, 20mm, 10mm, etc.

The greater the distance between the upper end of the hollow cavity 301 and the rotational axis of the wind wheel, i.e. the further the upper end of the hollow cavity 301 is from the rotational axis, the greater the coverage of the hollow cavity 301 in the channel wall 40, the better the anti-condensation effect can be achieved.

According to some embodiments of the utility model, the rear channel wall 410 may include an outer extension 411 and an inner extension 412. Specifically, as shown in fig. 5, the outer extension 411 extends downward and obliquely outward, the outer extension 412 extends downward and obliquely inward away from the air outlet channel 10, the inner extension 412 extends inward toward the air outlet channel 10, the upper end of the inner extension 412 is connected to the lower end of the outer extension 411, and the space formed by the outer extension 411 and the inner extension 412 can be adapted to the shape of the wind wheel, so that the resistance of the air flow in the air outlet channel 10 is reduced.

It should be noted that, the cross sections of the outer extension 411 and the inner extension 412 perpendicular to the rotation axis of the wind wheel may be triangular or arc-shaped, and may be set according to practical situations.

In the embodiment where the sections of the outer extension section 411 and the inner extension section 412 perpendicular to the rotation axis of the wind wheel are arc-shaped, the rear side channel wall 410 is integrally arc-shaped, the shape of the rear side channel wall 410 is matched with the shape of the wind wheel, and when the wind wheel rotates, on one hand, the better flow guiding effect can be achieved, the air flow resistance is reduced, so that the cool air dredged by the wind wheel can smoothly flow to the air outlet 20 along the channel wall 40, on the other hand, the generation of vortex in the air outlet channel 10 can be reduced, and the air outlet noise is reduced.

In addition, as shown in fig. 5, the inner extension 412 has a hollow cavity 301 to prevent condensed water from being generated on the inner extension 412, thereby preventing the condensed water from dropping into the room along the inner extension 412. The outer extension 411 is provided with a first water guide rib 4111, and the first water guide rib 4111 may be used to drain condensed water generated on the outer surface of the outer extension 411. Specifically, the outer extension 411 is inclined downward and extends outward, and the first water guide ribs 4111 disposed on the outer extension 411 may cooperate with the outer extension 411 to form grooves, so as to achieve the effect of dredging condensed water.

In some embodiments, as shown in fig. 5, a second water guiding rib 4112 is disposed at the connection between the inner extension section 412 and the outer extension section 411, and the second water guiding rib 4112 is used to drain condensed water generated at the connection between the inner extension section 412 and the outer extension section 411.

And, a portion of the hollow cavity 301 is formed at the second water guide rib 4112. In some embodiments, the upper end of the hollow cavity 301 extends upwards and outwards, and the upper end of the hollow cavity 301 is formed on the second water guiding rib 4112, on one hand, a groove is formed in cooperation with the outer surface of the channel wall 40 to realize the effect of dredging condensed water, and on the other hand, a part of the hollow cavity 301 forms the second water guiding rib 4112, so that the working procedure of machining can be reduced, materials are saved, and the cost of machining the chassis 100 is reduced.

In some embodiments, as shown in fig. 3, in the left-right direction of the chassis 100 (the left-right direction as shown in fig. 3, i.e., the rotation axis direction of the wind wheel), the middle portions of the first water guide rib 4111 and the second water guide rib 4112 are higher than the left-right ends, so as to facilitate the first water guide rib 4111 and the second water guide rib 4112 to drain the condensed water generated on the chassis 100.

Specifically, the first water guide rib 4111 and the second water guide rib 4112 extend in the left-right direction of the chassis 100, respectively, and the middle portion may be any position between the left end and the right end of the first water guide rib 4111, and any position between the left end and the right end of the second water guide rib 4112. If the middle portion can be a middle position, the distances between the left and right ends of the first water guide rib 4111 and the second water guide rib 4112 are the same, and the slopes formed by the height differences between the left and right ends are the same, so that the first water guide rib 4111 and the second water guide rib 4112 can uniformly guide condensed water to the left and right ends.

According to some embodiments of the present utility model, as shown in fig. 5, the chassis 100 has a connection section 50, the connection section 50 is used for being connected with the face frame 210 of the indoor unit 200, and the rear side channel wall 410 of the air outlet channel 10 is connected with the connection section 50, the bottom end of the channel wall 40 forming the hollow cavity 301 is connected with the connection section 50, in other words, the hollow cavity 301 extends to the connection section 50 to achieve a heat preservation effect in the maximum range, and the condensate water is avoided at the air outlet 20.

As shown in fig. 5, the connection section 50 is located outside the air outlet channel 10, and the temperature of the connection section 50 is not too low due to the influence of cold air in the air outlet channel 10, so that condensed water is not easy to generate on the surface of the connection section 50. The lower end of the hollow cavity 301 is flush with the connecting section 50, in other words, the hollow cavity 301 extends downward to the end of the air outlet channel 10 and extends to the air outlet 20, so as to achieve good heat preservation and insulation effects in the maximum range, thereby effectively avoiding condensate water at the air outlet 20.

In some embodiments, as shown in fig. 5, the air outlet 20 has a front channel wall 420 and a rear channel wall 410, where the entire front channel wall 420 has a hollow cavity 301, so as to achieve a heat insulation effect, avoid the temperature of the outer surface of the front channel wall 420 from being too low, and avoid the condensation caused by the too large difference between the temperature of the outer surface of the front channel wall 420 and the temperature of the indoor air.

The shape of the hollow cavity 301 may be flexibly set according to the shape of the channel wall 40, for example, the longitudinal section of the hollow cavity 301 may be rectangular, long, L-shaped, or the like.

In some embodiments, as shown in fig. 5, the front channel wall 420 includes a first sloped section extending downwardly and inwardly and a second sloped section extending downwardly and outwardly, the lower end of the first sloped section being connected to the upper end of the second sloped section. The sections of the first inclined section and the second inclined section along the front-back direction can be L-shaped, corresponding hollow cavities 301 are arranged in the first inclined section and the second inclined section, so that the sections of the hollow cavities 301 perpendicular to the rotation axis of the wind wheel form L-shaped, and the heat preservation effect is realized.

With continued reference to fig. 5, the portion of the rear channel wall 410 where the hollow cavity 301 is provided includes a third sloped section that extends downwardly and inwardly (which may be formed as the previously described inner extension section 412) and a fourth sloped section that extends downwardly and outwardly, the lower end of the third sloped section being connected to the upper end of the fourth sloped section. In some embodiments, the sections of the third inclined section and the fourth inclined section along the front-rear direction (the front-rear direction as shown in fig. 5) may be L-shaped, and corresponding, the hollow cavities 301 are disposed in the third inclined section and the fourth inclined section, so that the sections of the hollow cavities 301 perpendicular to the rotation axis of the wind wheel form L-shapes, and a heat insulation effect is achieved.

According to some embodiments of the present utility model, the extension length of the hollow cavity 301 is greater than or equal to the extension length of the air outlet 20 in the left-right direction of the chassis 100 (left-right direction as shown in fig. 1), so as to avoid condensate water at the air outlet 20.

Specifically, cold air flows indoors through the air outlet 20 during the air conditioning refrigeration operation, water vapor in the air is easy to form condensed water at the temperature generated at the air outlet 20, the extension length of the hollow cavity 301 is greater than or equal to the extension length of the air outlet 20, and when the cold air flows out from any area in the length direction of the air outlet 20, the hollow cavity 301 has a good condensation preventing effect, so that a good heat preservation and insulation effect is achieved in the maximum range, and the condensed water is prevented from being generated at the air outlet 20.

The air conditioning indoor unit 200 according to the embodiment of the utility model includes the chassis 100 of the air conditioning indoor unit 200 according to the embodiment of the utility model. Since the chassis 100 of the indoor unit 200 of the air conditioner according to the embodiment of the utility model has the beneficial technical effects described above, according to the indoor unit 200 of the embodiment of the utility model, the chassis 100 of the indoor unit 200 of the air conditioner according to the embodiment of the utility model, by arranging the hollow cavity 301 in the channel wall 40 adjacent to the air outlet 20 at least, the hollow cavity 301 separates the cool air and the indoor air in the air outlet channel 10, the hollow cavity 301 plays a role of heat preservation, and the temperature difference between the outer surface of the channel wall 40 and the indoor air is avoided from being too large, so that the condensation of the water vapor in the indoor air on the channel wall 40 is avoided. The chassis 100 also has the advantages of low production cost, low possibility of generating working noise, and the like.

An air conditioning indoor unit 200 according to some embodiments of the present utility model is described below.

As shown in fig. 1, the indoor unit 200 of the air conditioner includes an air deflector 220, the air deflector 220 is disposed at the air outlet 20, and the air deflector 220 is used for guiding cold air at the air outlet 20 to adjust the air outlet state. The air deflector 220 has an open state and a closed state. Specifically, in the opened state, the air guide plate 220 partitions the air outlet 20 into an upper air outlet and a lower air outlet; in the closed state, the air deflector 220 closes the air outlet 20.

As shown in fig. 2 and 5, the upper sidewall of the upper air outlet 20 is provided with a hollow cavity 301, and in some embodiments, the upper sidewall of the upper air outlet 20 is a front channel wall 420 of the chassis 100. The lower side wall of the air outlet 20 is provided with a hollow cavity 301, and in some embodiments, the lower side wall of the air outlet 20 is a rear side channel wall 410 of the chassis 100.

The hollow cavities 301 in the upper and lower sidewalls can provide a thermal insulation effect that prevents condensation of water vapor in the air by supercooling the outer surface of the channel wall 40 that contacts the air. And, the cold air in the air outlet channel 10 flows out through the upper air outlet and the lower air outlet separated by the air deflector 220, so that the surface temperatures of the two sides of the air deflector 220 are consistent, and the cold air blows the lower vapor to be difficult to contact with the surface of the air deflector 220, so that condensed water is difficult to generate. Therefore, the air deflector 220 may not have the hollow cavity 301, so as to simplify the structure of the air deflector 220 and reduce the production cost. Other constructions and operations of the indoor unit 200 according to the embodiment of the present utility model are known to those skilled in the art, and will not be described in detail herein.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the description herein, reference to the terms "embodiment," "specific embodiment," "example," and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

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

Claims (9)

1. A chassis of an indoor unit of an air conditioner, wherein the chassis defines an air outlet channel, the air outlet channel is provided with an air outlet, and a hollow cavity is arranged on a channel wall of the air outlet channel at least adjacent to the air outlet;

wherein the hollow cavity is processed by a gas-assisted or water-assisted injection molding process.

2. The chassis of an indoor unit of claim 1, wherein the portion of the channel wall having the hollow cavity has a thickness of 4.5-7 mm.

3. The chassis of an indoor unit of claim 1, wherein the hollow cavity has a thickness of 1.5-4 mm and a cavity wall thickness of 1.5-2 mm.

4. The chassis of an indoor unit of claim 1, wherein a wind wheel is disposed in the air outlet channel, and a height difference between an upper end of the hollow cavity and a rotation axis of the wind wheel is less than or equal to 40mm.

5. The chassis of an indoor unit of claim 1, wherein the rear side duct wall of the air outlet duct includes an outer extension extending obliquely downward and outward and an inner extension extending obliquely downward and inward, an upper end of the inner extension being connected to a lower end of the outer extension,

the inner extension section is provided with the hollow cavity, and the outer extension section is provided with a first water guide rib.

6. The chassis of claim 5, wherein a second water guide rib is provided at a junction of the inner extension and the outer extension, and a portion of the hollow cavity is formed in the second water guide rib.

7. The chassis of an air conditioning indoor unit according to claim 1, wherein the chassis has a connection section for connection with a face frame of the air conditioning indoor unit, a rear side passage wall of the air outlet passage is connected with the connection section, and a lower end of the hollow cavity provided in the rear side passage wall is flush with the connection section.

8. The chassis of an indoor unit of any one of claims 1 to 7, wherein an extension length of the hollow cavity is greater than or equal to an extension length of the air outlet in a left-right direction of the chassis.

9. An air conditioning indoor unit comprising a chassis according to any one of claims 1-8.

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