CN213480382U - Indoor machine of air conditioner - Google Patents

Abstract

The utility model discloses an air conditioner indoor unit, include: casing, heat exchanger and new trend device. The heat exchanger is arranged in the shell; the new trend device sets up in the casing and is located the one end of heat exchanger, and the new trend device includes: the fresh air shell is provided with an installation space, the volute is installed in the installation space and provided with a fresh air port, the volute is provided with a first air inlet, a second air inlet and an air outlet, the fan is arranged in the volute, the first air inlet and the first air outlet are oppositely arranged in the axial direction of the fan and communicated with the fresh air port through the fresh air shell in the installation space, the air outlet is communicated with the inner space of the shell, and the filtering unit is arranged in the fresh air shell and corresponds to the first air inlet and the second air inlet. The fresh air device of the indoor unit of the air conditioner can realize bilateral air inlet, effectively increase the size of the air channel and the air inlet area, increase the fresh air quantity, and improve the indoor air quality by purifying the fresh air through the filter unit.

Description

Indoor machine of air conditioner

Technical Field

The utility model belongs to the technical field of the air conditioning indoor unit technique and specifically relates to an air conditioning indoor unit.

Background

The air conditioner is a widely used household appliance, and has multiple functions of heating, refrigerating, dehumidifying and the like. In the conventional air conditioner, only indoor air is circularly heated or cooled during heating or cooling, and a door of a room needs to be closed in order to keep the indoor temperature not to change greatly.

In order to solve the problem, the fresh air device is arranged on an indoor unit of an air conditioner at present to effectively improve the freshness of indoor air, but in the related technology, the air inlet area of an air inlet of the fresh air device is small, the air inlet amount is small, and fresh air cannot be rapidly supplied to the indoor space.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide an air conditioner, this air conditioner's new trend device has two side air intakes, can effectively increase wind channel size and air inlet area, increases the new amount of wind, and the filter unit of setting can also carry out purification treatment to getting into indoor new trend.

According to the utility model discloses an air conditioner indoor unit, include: casing, heat exchanger and new trend device. The heat exchanger is arranged in the shell; the new trend device set up in just be located in the casing the one end of heat exchanger, the new trend device includes: fresh air casing, spiral case, fan and filter unit, the fresh air casing has installation space, the spiral case install in the installation space, the fresh air casing has the fresh air mouth, the spiral case has first air intake, second air intake and air outlet, the fan set up in the spiral case, first air intake with first air outlet is in the axial of fan sets up relatively and is in installation space department passes through the fresh air casing with the fresh air mouth is linked together, the air outlet with the inner space of casing is linked together, filter unit set up in the fresh air casing and with first air intake with the second air intake is corresponding.

From this, according to the utility model discloses an air conditioner is through setting up two air intakes and filter unit on its new trend device, can realize the two side air intakes of realization of new trend device, can effectively increase wind channel size and air inlet area, increases the fresh air volume, and in addition, filter unit can carry out purification treatment to getting into indoor new trend for the indoor air quality can be improved fast, thereby can bring good use experience for the user and feel.

According to the utility model discloses a some embodiments, new trend casing includes: first casing portion, second casing portion and third casing portion, third casing portion connect first casing portion with between the second casing portion, the fresh air mouth form in third casing portion, the spiral case is installed first casing portion with between the second casing portion, first casing portion orientation first air intake opens the setting, second casing portion orientation the second air intake opens the setting, the filter unit set up at least in first casing portion with in the second casing portion.

According to some embodiments of the present invention, the fresh air opening is provided in the bottom of the third housing portion and is lower than the first housing portion and the bottom of the second housing portion.

According to some embodiments of the invention, the first housing part and the second housing part are in the same depth in the axial direction of the fan.

According to some embodiments of the invention, the volute comprises: first curb plate, second curb plate and arc, the arc connect in first curb plate with between the second curb plate, first curb plate has seted up first air intake, the second curb plate has seted up the second air intake, first curb plate install in on the first casing portion just the second curb plate install in on the second casing portion.

According to some embodiments of the utility model, first air intake department is provided with first wind-guiding circle, second air intake department is provided with second wind-guiding circle.

According to some embodiments of the invention, the filter unit is further arranged in the third housing part and is overall U-shaped in horizontal cross section.

According to some embodiments of the invention, the filter unit comprises: the first filter element and the second filter element are arranged on one side, facing the first air inlet and the second air inlet, of the first filter element.

According to some embodiments of the invention, the first filter element is a coarse filter screen and the second filter element is a HEPA advanced filter screen.

According to some embodiments of the utility model, the air outlet set up in the top of spiral case and protrusion in the top of new trend casing, the air outlet is towards the top air-out.

Additional aspects and advantages of the invention 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 invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of a partial structure of an indoor unit of an air conditioner according to an embodiment of the present invention;

fig. 2 is an angular cross-sectional view of a fresh air device according to an embodiment of the present invention;

fig. 3 is another angle section view of a fresh air device according to an embodiment of the present invention.

Reference numerals:

an air conditioner indoor unit 100;

a housing 10;

a heat exchanger 20;

a fresh air device 30; a fresh air shell 31; a fresh air port 311; a first housing portion 312;

a second housing portion 313; a third housing portion 314; a volute 32; the first air intake 321;

a first wind guide ring 3211; a second air inlet 322; a second wind-guiding ring 3221; an air outlet 323;

a first side panel 324; a second side plate 325; an arcuate plate 326;

a fan 33; a filter unit 34; the first filter element 341; a second filter element 342; a mounting portion 35; a fan 36.

Detailed Description

Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.

The air conditioner performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. 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 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 cooling effect by heat-exchanging 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 an evaporator. 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 an evaporator, the air conditioner is used as a cooler in a cooling mode.

An air conditioner indoor unit 100 according to an embodiment of the present invention will be described with reference to fig. 1 to 3.

As shown in fig. 1, the air conditioner indoor unit 100 includes: a casing 10, a heat exchanger 20 and a fresh air device 30. The heat exchanger 20 and the fresh air device 30 are disposed inside the cabinet 10. Specifically, the heat exchanger 20 may be disposed in the middle of the casing 10, and the front side of the casing is an air outlet of the air conditioner indoor unit 100, so that the air heated or cooled by the heat exchanger 20 may be directly blown out from the air outlet of the air conditioner indoor unit 100. Fresh air device 30 can introduce indoor with outdoor fresh air, improves the new freshness of indoor air, and in addition, fresh air device 30 volume occupation space is little, in order not to influence heat exchanger 20 work, can set up fresh air device 30 in the one end of heat exchanger 20 moreover, for example, can set up fresh air device 30 in the left side of heat exchanger 20.

The following describes the specific structure and operation principle of the fresh air device 30 in detail.

As shown in fig. 2, the fresh air device 30 includes: fresh air casing 31, spiral case 32, fan 33 and filter unit 34, fresh air casing 31 has the installation space, fresh air casing 31 forms the fretwork portion that bottom and front side have the fretwork, place for spiral case 32, when spiral case 32 installs in the installation space, spiral case 32 just forms the inner chamber with fresh air casing 31 like this, the air by outdoor entering inner chamber can be short-term in the inner chamber portion stops, furthermore, in the outside of spiral case 32, and still be provided with filter unit 34 in fresh air casing 31's inside, filter unit 34 can be to the air by fresh air casing 31 inner chamber portion carry out filtration treatment before getting into spiral case 32 inside, thereby make the air that gets into in spiral case 32 cleaner, and then make indoor air can obtain effectual improvement. The volute 32 and the fan 33 are both arranged inside the fresh air shell 31, so that the space volume occupied by the fresh air device 30 can be effectively reduced, the fresh air device 30 is matched with the shell 10 of the indoor unit 100 of the air conditioner in size, the arrangement of related pipelines can be reduced, and the structure of the fresh air device 30 is simpler and more compact.

In detail, as shown in fig. 3, the fresh air housing 31 has a fresh air opening 311, the fresh air opening 311 can communicate with outdoor air through a pipeline, the outdoor air can enter the fresh air housing 31 through the fresh air opening 311, the scroll casing 32 has a first air inlet 321, a second air inlet 322 and an air outlet 323, the air in the fresh air housing 31 can enter the scroll casing 32 through the first air inlet 321 and the second air inlet 322, and is blown out to the indoor space through the air outlet 323 of the scroll casing 32. The fan 33 in the fresh air housing 31 is arranged in the volute 32, the first air inlet 321 and the second air inlet 322 are oppositely arranged in the axial direction of the fan 33, so that double-side air inlet with the maximum air inlet amount can be realized when the fan 33 operates, the fresh air housing 31 is communicated with the fresh air inlet 311 in the installation space, the air outlet 323 is communicated with the inner space of the volute 32, a through channel is formed from the fresh air inlet 311 to the air outlet 323, and outdoor air can enter from the fresh air inlet 311 and be blown out from the air outlet 323.

In addition, the filter unit 34 is specifically disposed in the fresh air housing 31 and corresponds to the first air inlet 321 and the second air inlet 322. That is, the filter unit 34 is disposed inside the fresh air housing 31 and covers the first air inlet 321 and the second air inlet 322 of the volute 32, so that the air entering the volute 23 needs to be filtered by the filter unit 34, and the air blown out from the air outlet 323 is cleaner.

It should be noted that the fan 33 may be a centrifugal fan, and the fan 33 may include: a motor and a fan 36, wherein the motor drives the fan 36 to rotate, so that air supply can be completed in the volute 32.

Specifically, when the fresh air device 30 is started to operate, the fan 36 of the fan 33 rotates, and at this time, an air pressure difference is formed between the inside and the outside of the fresh air opening 311, so that outdoor air can enter the fresh air housing 31 through the fresh air opening 311 under the action of the fan 33, the air entering the fresh air housing 31 enters the volute 32 through the first air inlet 321 and the second air inlet 322, and finally the air is blown out to the indoor through the air outlet 323 on the volute 32, so that the outdoor air can flow to the indoor air, and the freshness and the cleanliness of the indoor air are improved.

From this, according to the utility model discloses an air conditioner 100, through set up first air intake 321, second air intake 322 and air outlet 323 on the spiral case 32 at its new trend device 30, two air intakes can realize two side air inlets, can effectively increase wind channel size and air inlet area, increase the fresh air volume to can make the room air quality obtain improving fast.

As shown in fig. 2 and 3, the fresh air housing 31 includes: the first housing part 312, the second housing part 313 and the third housing part 314, the third housing part 314 is connected between the first housing part 312 and the second housing part 313, and the first housing part 312 and the second housing part 313 keep a certain distance from the first air inlet 321 and the second air inlet 322, so that the generation of vortex can be reduced, the noise can be reduced, and the air volume entering the first air inlet 321 and the second air inlet 322 can be larger.

In addition, the fresh air opening 311 is formed in the third housing portion 314 and is located at the bottom of the third housing portion 314, and the scroll casing 32 is installed between the first housing portion 312 and the second housing portion 313, so that the first housing portion 312 and the second housing portion 313 are at the same distance from the scroll casing 32, and the same size of the two side spaces is ensured, thereby enabling the stability of the fan 33 during operation.

The first housing part 312 is open towards the first air inlet 321, the second housing part 313 is open towards the second air inlet 322, and therefore the first housing part 312 and the second housing part 313 are matched with the third housing part 314 while being matched with each other to form the fresh air housing 31 which is relatively sealed, and the fresh air opening 311 is communicated with the inside of the fresh air housing 31, so that outdoor air can enter the inside of the fresh air housing 31 through the fresh air opening 311. In addition, the filter unit 34 is disposed at least in the first and second housing parts 312 and 313, for example, the filter unit 34 may be disposed completely in the first and second housing parts 312 and 313, so that the air can be filtered by the filter unit 34 to the maximum extent when entering the first and second air inlets 321 and 322, and the cleanliness of the air entering the scroll casing 32 can be improved.

More specifically, as shown in fig. 3, the fresh air opening 311 is disposed at the bottom of the third housing portion 314 and is lower than the bottoms of the first and second housing portions 312 and 313. The fresh air opening 311 thus arranged is positioned so as not to occupy the space provided in the fresh air housing 31 by the scroll case 32.

In detail, as shown in fig. 2, the first housing part 312 and the second housing part 313 have the same depth in the axial direction of the blower 33. That is to say, the first housing part 312 and the second housing part 313 are spaced from the volute 32 in the axial direction of the fan 33 by the same distance, so that on one hand, the running stability of the fan 33 can be ensured, and on the other hand, the structure of the fresh air device 30 can be more compact and reasonable.

The specific structure of the volute 32 in the fresh air device 30 will be described in detail below.

As shown in fig. 2, the scroll casing 32 includes: the fan 33 comprises a first side plate 324, a second side plate 325 and an arc-shaped plate 326, wherein the arc-shaped plate 326 is connected between the first side plate 324 and the second side plate 325, the width of the arc-shaped plate 326 is larger than the axial length of the fan 33, and thus the space left between the first side plate 324 and the second side plate 325 can provide enough installation space for the fan 33.

The first side plate 324 is provided with a first air inlet 321, the second side plate 325 is provided with a second air inlet 322, and the first air inlet 321 and the second air inlet 322 are circular to adapt to the shape of the fan 36, so that the air inlet area can be maximized. The first air inlet 321 and the second air inlet 322 have the same diameter, and the diameter is smaller than that of the circular fan 36, so that the same air inlet area on both sides can improve the structural stability of the volute 32. In addition, by utilizing the structural features of the fresh air casing 31, the first side plate 324 of the scroll casing 32 can be mounted on the first casing 312, and the second side plate 325 can be mounted on the second casing 313, which is simple and secure in mounting.

In detail, as shown in fig. 3, an installation part 35 may be disposed at the edge of each of the first side plate 324 and the second side plate 325, and the installation part 35 is fixedly connected to the fresh air casing 31 or the cabinet 10. Specifically, the same threaded holes may be provided in the first casing 312 and the first side plate 324, and the second casing 313 and the second side plate 325, and then the volute 32 and the fresh air casing 31 may be fixedly mounted by the cooperation of the bolts and the threaded holes. Of course, in order to improve the installation stability of the volute 32 and the fresh air housing 31, a plurality of threaded holes and bolts can be arranged.

In the embodiment of the present invention, the first air inlet 321 is provided with a first air guiding ring 3211, and the second air inlet 322 is provided with a second air guiding ring 3221. Through setting up the wind-guiding circle, can be so that the air in the new trend casing 31 more concentrates when getting into in the spiral case 32, be favorable to improving air inlet and air-out efficiency moreover.

As shown in fig. 2, the filter unit 34 is also disposed in the third housing portion 314, and is U-shaped in horizontal cross section as a whole. That is, the filter unit 34 is not only located in the first housing part 312 and the second housing part 313, but also located in the third housing part 314, and the filter unit 34 located in the first housing part 312, the second housing part 313 and the third housing part 314 can be an integrally formed structure, so that the filter unit 34 of the integrally formed structure is simpler and faster to produce and install. The U-shaped filter unit 34 may wrap the volute 32 relatively completely, such that air entering the volute 32 is filtered by the filter unit 34, thereby improving the cleanliness of the air entering the interior of the volute 32.

Although the freshness of the indoor air can be improved by introducing the fresh outdoor air into the room, thereby improving the quality of the indoor air, the indoor air contains some substances harmful to human bodies, and if the harmful substances are introduced into the room, the quality of the indoor air cannot be improved, but the deterioration of the quality of the indoor air is aggravated. Therefore, the air conditioner indoor unit 100 of the present invention is further provided with a filtering unit 34 in the fresh air device 30, and the filtering unit 34 is disposed at the air outlet 323 and the fresh air outlet 311. The filter unit 34 thus filters the outdoor air twice before it is blown into the room, thereby making the air blown into the room cleaner.

As shown in fig. 2, the filter unit 34 includes: a first filter element 341 and a second filter element 342. The second filter element 342 is disposed on a side of the first filter element 341 facing the first and second intake ports 321 and 322. That is, a first filter element 341 is disposed on a side facing the first air inlet 321 and the second air inlet 322, and a second filter element 342 is disposed on an outer side of the first filter element 341 and also on a side facing the first air inlet 321 and the second air inlet 322, wherein the first filter element 341 is a coarse filter screen and the second filter element 342 is a HEPA (high efficiency air filter) advanced filter screen.

Like this, set up double-deck filter screen through the air intake at spiral case 32, the coarse filter screen carries out primary filtration to the air that gets into in the spiral case 32, for example, can filter harmful substance PM2.5, and senior filter screen can carry out secondary filter to the air after being filtered by the coarse filter screen, and this secondary filter can further reduce the harmful substance in the air for it is cleaner to get into indoor air.

In addition, a first filter element 341 placed vertically may be further disposed above the fresh air opening 311, so that the air entering the fresh air casing 31 from the fresh air opening 311 may be filtered, and the air inside the fresh air casing 31 is cleaner than the outdoor air.

From this, through the filter unit 34 that sets up on new trend device 30, can carry out the cubic to the air that gets into indoor and filter to can guarantee to introduce indoor air cleaner by the open air, and then can improve under the condition of indoor air quality, can also avoid the harmful substance in the outdoor air to cause the harm to the health.

The utility model discloses an in the embodiment, air outlet 323 sets up in the top of spiral case 32, and protrusion in new trend casing 31's top moreover, and air outlet 323 is towards the top air-out, compares in setting up air outlet 323 towards user one side, can be so that the noise source transmits the top rather than openly, and user's listening noise can be lower like this to improve user's use experience and feel.

In the description of the present invention, it is to 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", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.

In the description of the present invention, "a plurality" means two or more. In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween. In the description of the invention, the first feature being "on", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean 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 present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

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

Claims (10)

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

a housing;

the heat exchanger is arranged in the shell;

fresh air device, fresh air device set up in just be located in the casing the one end of heat exchanger, fresh air device includes: the fresh air shell is provided with an installation space, the volute is installed in the installation space, the fresh air shell is provided with a fresh air port, the volute is provided with a first air inlet, a second air inlet and an air outlet, the fan is arranged in the volute, the first air inlet and the air outlet are arranged oppositely in the axial direction of the fan, the installation space is communicated with the fresh air port through the fresh air shell, the air outlet is communicated with the inner space of the shell, and the filter unit is arranged in the fresh air shell and corresponds to the first air inlet and the second air inlet.

2. An indoor unit for an air conditioner according to claim 1, wherein the fresh air casing comprises: first casing portion, second casing portion and third casing portion, third casing portion connect first casing portion with between the second casing portion, the fresh air mouth form in third casing portion, the spiral case is installed first casing portion with between the second casing portion, first casing portion orientation first air intake opens the setting, second casing portion orientation the second air intake opens the setting, the filter unit set up at least in first casing portion with in the second casing portion.

3. The indoor unit of claim 2, wherein the fresh air inlet is disposed at the bottom of the third housing part and below the bottom of the first and second housing parts.

4. An indoor unit for an air conditioner according to claim 2, wherein the first and second housing portions have the same depth in the axial direction of the fan.

5. An indoor unit for an air conditioner according to claim 2, wherein the scroll casing includes: first curb plate, second curb plate and arc, the arc connect in first curb plate with between the second curb plate, first curb plate has seted up first air intake, the second curb plate has seted up the second air intake, first curb plate install in on the first casing portion just the second curb plate install in on the second casing portion.

6. An indoor unit of an air conditioner according to claim 5, wherein a first air guiding ring is arranged at the first air inlet, and a second air guiding ring is arranged at the second air inlet.

7. An indoor unit for an air conditioner according to claim 2, wherein the filter unit is further provided in the third housing portion and is U-shaped as a whole in a horizontal cross section.

8. An indoor unit for an air conditioner according to claim 1, wherein the filter unit comprises: the first filter element and the second filter element are arranged on one side, facing the first air inlet and the second air inlet, of the first filter element.

9. An indoor unit for an air conditioner according to claim 8, wherein the first filter element is a coarse filter screen and the second filter element is a HEPA advanced filter screen.

10. The indoor unit of claim 1, wherein the air outlet is disposed at the top of the volute and protrudes from the top of the fresh air casing, and the air outlet is directed upward.

Images