CN219797359U - Indoor unit of air conditioner - Google Patents
Indoor unit of air conditioner Download PDFInfo
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- CN219797359U CN219797359U CN202320732329.1U CN202320732329U CN219797359U CN 219797359 U CN219797359 U CN 219797359U CN 202320732329 U CN202320732329 U CN 202320732329U CN 219797359 U CN219797359 U CN 219797359U
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- 238000004378 air conditioning Methods 0.000 claims description 29
- 230000007704 transition Effects 0.000 claims description 14
- 238000004891 communication Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 5
- 238000000746 purification Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model discloses an air conditioner indoor unit, which belongs to the technical field of air conditioners, and comprises a shell, a heat exchanger, a heat exchange fan, a fresh air shell, a fresh air fan and an air outlet shell; the shell is provided with a shell air inlet and a shell air outlet; a heat exchange air duct and an air outlet air duct which are mutually communicated are formed in the shell, the heat exchange air duct is communicated with the shell air inlet, and the air outlet air duct is communicated with the shell air outlet; the heat exchanger is arranged in the heat exchange air duct; the heat exchange fan is arranged in the air outlet duct; a fresh air channel provided with a fresh air fan is formed in the fresh air shell and is arranged in the shell; the air outlet shell is connected with the fresh air shell and is positioned in the heat exchange air duct; the air outlet shell is arranged opposite to the air outlet of the shell, and an extension air duct communicated with the fresh air duct is arranged in the air outlet shell; the fresh air outlet is arranged on one side of the air outlet shell away from the air inlet of the shell and is communicated with the extension air duct; according to the indoor unit of the air conditioner, the outdoor fresh air and the indoor air are mixed and subjected to heat exchange, and then the mixed air flows indoors, so that the temperature difference of the mixed air flows is reduced.
Description
Technical Field
The utility model relates to the technical field of air conditioners, in particular to an air conditioner indoor unit.
Background
With the improvement of the attention of people to the quality of air, more and more users tend to install fresh air conditioners. The fresh air conditioner is a healthy and comfortable air conditioner with a fresh air function, can realize circulation and ventilation between indoor air and outdoor air, and also has the function of purifying air.
In the prior art, a fresh air inlet and a shell air outlet are formed in an indoor unit of a fresh air conditioner, wherein outdoor fresh air flows into a room from the fresh air inlet through a fresh air system, and indoor air flows into the room from the shell air outlet through air conditioner air formed by heat exchange of the air conditioner system. Fresh air and air-conditioning air flow in two sets of mutually independent systems, and when the temperature difference between the fresh air blown out from the fresh air outlet and the air-conditioning air blown out from the shell air outlet is large, discomfort of a user can be caused, and comfort experience of the user is affected. At present, in some fresh air conditioner indoor units, fresh air and heat-exchanged air-conditioning wind are mixed and then flow into the room so as to reduce the temperature difference between the fresh air blown out by the air outlet of the casing and the air-conditioning wind, but the fresh air is directly mixed with the air-conditioning wind without heat exchange treatment, so that the temperature difference between the air-conditioning wind and the indoor air is reduced, the heat exchange effect of the heat exchanger is reduced, the comfort experience of a user is also affected, and therefore, the fresh air conditioner indoor units in the prior art cannot well meet the actual needs of people.
Disclosure of Invention
Aiming at the defects existing in the related art, the utility model provides an air conditioner indoor unit to solve the problem that in the prior art, the temperature difference between outdoor fresh air and air conditioner air blown out from an air outlet of a machine shell is large, so that human body discomfort is caused.
The utility model provides an air conditioner indoor unit, comprising:
the shell is provided with a shell air inlet and a shell air outlet; the left side of the shell to the right side of the shell are the length direction of the shell; a heat exchange air duct and an air outlet air duct which are mutually communicated are formed in the shell, the heat exchange air duct is communicated with the shell air inlet, and the air outlet air duct is communicated with the shell air outlet;
the heat exchanger is arranged in the heat exchange air duct;
the heat exchange fan is arranged in the air outlet duct;
the fresh air shell is arranged in the shell, and a fresh air channel for introducing outdoor fresh air is formed in the fresh air shell;
the fresh air fan is arranged in the fresh air duct;
the air outlet shell is connected with the fresh air shell and is positioned in the heat exchange air duct; the air outlet shell extends along the length direction of the shell and is arranged opposite to the air outlet of the shell; an extension air duct communicated with the fresh air duct is arranged in the air outlet shell;
the fresh air outlet is arranged on one side of the air outlet shell away from the air inlet of the shell, is arranged towards the heat exchange air duct and is communicated with the extension air duct;
when the fresh air fan operates, outdoor fresh air is introduced into the fresh air duct and flows to the heat exchange duct from the fresh air outlet through the extension duct, and indoor air is introduced into the heat exchange duct from the shell air inlet and is mixed with the outdoor fresh air in the heat exchange duct to form mixed air through the operation of the heat exchange fan.
According to the technical scheme, the extension air duct is arranged to introduce the outdoor fresh air into the heat exchange air duct, so that the outdoor fresh air and the indoor air are fully mixed, the mixed air flows into a room from the air outlet of the casing, and discomfort of a user caused by overlarge temperature difference between the outdoor fresh air and the indoor air after heat exchange is avoided; the heat exchanger is arranged to exchange heat in the heat exchange air duct to outdoor fresh air and/or indoor air and/or mixed air of the indoor air and the outdoor fresh air, so that the temperature difference between the outdoor fresh air and air discharged from the air outlet of the shell is reduced; an extension air duct is formed by arranging an air outlet shell; and a fresh air outlet is formed in one side of the air outlet shell, which is away from the air inlet of the shell, so that outdoor fresh air is prevented from flowing into a room from the air inlet of the shell.
In some embodiments, the air outlet shell comprises a first extension part and a second extension part, the first extension part and the second extension part are oppositely arranged and respectively extend towards a direction far away from the air inlet of the shell, the first extension part and the second extension part jointly form an air outlet cavity communicated with the heat exchange air duct, and the fresh air outlet is arranged towards the air outlet cavity.
In some embodiments, the distance between the first extension portion and the second extension portion increases gradually from a direction away from the air inlet of the housing.
In some embodiments, a fresh air outlet is formed on a side of the first extension portion facing the air outlet cavity and a side of the second extension portion facing the air outlet cavity.
In some embodiments, the first extension portion is provided with a plurality of fresh air outlets, and the plurality of fresh air outlets are distributed along the length direction of the casing.
In some embodiments, the second extension portion is provided with a plurality of fresh air outlets, and the plurality of fresh air outlets are distributed along the length direction of the casing.
In some of these embodiments, the heat exchanger includes oppositely disposed first and second portions extending along the length of the housing and disposed at an angle; one end of the first part and one end of the second part, which are close to each other, are positioned in the air outlet cavity.
In some embodiments, the first extension is disposed opposite the first portion and the fresh air outlet of the first extension is disposed toward the first portion; the second extension portion is arranged opposite to the second portion, and a fresh air outlet of the second extension portion is arranged towards the second portion.
In some embodiments, a transition section is arranged at one end of the air outlet shell, which is close to the fresh air shell, and the size of the transition section gradually increases from the direction away from the fresh air shell.
According to the technical scheme, the transition section is arranged, so that the volute and the air outlet shell can be in gradual transition, and fresh air in the fresh air duct can stably and reliably enter the extension duct.
In some embodiments, the fresh air shell is provided with a fresh air shell air inlet and a fresh air shell air outlet, the fresh air shell air outlet is arranged along the length direction of the shell, and the fresh air channel is communicated with the extension channel through the fresh air shell air outlet; the air inlet of the fresh air shell is communicated with the outdoor air.
According to the technical scheme, the fresh air shell air outlet is arranged along the length direction of the machine shell, so that the fresh air shell is connected with the air outlet shell.
Based on the technical scheme, the air conditioner indoor unit in the embodiment of the utility model introduces the outdoor fresh air in the fresh air duct into the heat exchange duct by arranging the extension duct, so that the outdoor fresh air and the indoor air are mixed in the heat exchange duct and subjected to heat exchange treatment, the temperature of the mixed air formed by the outdoor fresh air and the indoor air is uniform, the temperature difference between the outdoor fresh air and the indoor air is reduced, and the discomfort of a user caused by the mixed air with nonuniform temperature is avoided; the fresh air outlet for communicating the extension air channel and the heat exchange air channel is arranged on one side of the air outlet shell, which is away from the air inlet of the shell, so as to prevent outdoor fresh air from flowing into a room from the air inlet of the shell; and moreover, the outdoor fresh air is led to the heat exchange air duct to be mixed with the indoor air and then flows into the room from the air outlet of the casing after being mixed, so that noise caused when the outdoor fresh air flows out of the extension air duct can be reduced, and the user experience is enhanced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:
FIG. 1 is a schematic view of an embodiment of an indoor unit of an air conditioner according to the present utility model;
FIG. 2 is a schematic view of an air conditioner indoor unit according to an embodiment of the present utility model without a casing;
FIG. 3 is a schematic view of an air conditioning indoor unit according to another embodiment of the present utility model, with the housing not assembled;
FIG. 4 is a schematic view showing a structure of an indoor unit of an air conditioner according to an embodiment of the present utility model without a heat exchanger and a casing;
FIG. 5 is a schematic view showing an internal structure of an indoor unit of an air conditioner according to an embodiment of the present utility model;
FIG. 6 is a right side view showing an internal structure of an indoor unit of an air conditioner according to an embodiment of the present utility model;
FIG. 7 is a schematic view of a new air casing, transition section and air outlet casing assembled in an embodiment of an indoor unit of an air conditioner according to the present utility model;
FIG. 8 is a schematic view of an air outlet casing in an embodiment of an indoor unit of an air conditioner according to the present utility model;
FIG. 9 is a schematic view of a new air casing and transition section assembly in an embodiment of an indoor unit of an air conditioner according to the present utility model;
FIG. 10 is a schematic view of a new air casing in an embodiment of an indoor unit of an air conditioner according to the present utility model;
fig. 11 is an exploded view showing the structure of a new air case in one embodiment of the indoor unit of the air conditioner of the present utility model.
In the figure:
1. a housing; 2. fresh air shell; 3. an air outlet shell; 4. a heat exchanger; 5. a heat exchange fan; 6. a transition section;
11. an air outlet of the shell; 12. an air inlet of the shell; 13. a guide plate; 14. an air outlet duct;
21. a fresh air inlet; 22. fresh air shell air outlet; 23. a volute; 24. a first shell; 25. a second case;
31. an air outlet cavity; 32. an extension air duct; 33. a first extension; 34. a second extension; 35. fresh air outlet;
41. a first portion; 42. a second portion.
Detailed Description
For the purposes of making the objects and embodiments of the present utility model more apparent, an exemplary embodiment of the present utility model will be described in detail below with reference to the accompanying drawings in which exemplary embodiments of the present utility model are illustrated, it being apparent that the exemplary embodiments described are only some, but not all, of the embodiments of the present utility model.
It should be noted that the brief description of the terminology in the present utility model is for the purpose of facilitating understanding of the embodiments described below only and is not intended to limit the embodiments of the present utility model. Unless otherwise indicated, these terms should be construed in their ordinary and customary meaning.
The terms first, second and the like in the description and in the claims and in the above-described figures are used for distinguishing between similar or similar objects or entities and not necessarily for describing a particular sequential or chronological order, unless otherwise indicated. It is to be understood that the terms so used are interchangeable under appropriate circumstances.
The terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements is not necessarily limited to all elements explicitly listed, but may include other elements not expressly listed or inherent to such product or apparatus.
As shown in fig. 1 to 11, in an exemplary embodiment of the air conditioning indoor unit according to the present utility model, the air conditioning indoor unit includes a cabinet 1, a heat exchanger 4, a heat exchange fan 5, a fresh air case 2, a fresh air fan, and an air outlet case 3.
The directions described herein are based on the direction in which the user faces the air conditioning indoor unit, wherein the left side and the right side are distinguished from each other in the direction in which the user faces the air conditioning indoor unit, the front side is defined as the side facing the user when the air conditioning indoor unit is in use, the rear side is defined as the opposite side, and the upper side and the lower side are defined to distinguish the upper side and the lower side when the air conditioning indoor unit generally works normally.
In this embodiment, the air conditioning indoor unit is a wall-mounted or other structure and the rear side of the air conditioning indoor unit is directed toward the wall. As shown in fig. 1, the casing 1 is used for forming the overall appearance of the indoor unit of the air conditioner, the casing 1 is in a substantially rectangular frame shape, the casing 1 has a top end and a bottom end, the top end and the bottom end are two ends which are oppositely arranged in the height direction, and the direction from the left side to the right side of the casing 1 is the length direction of the casing 1; the shell 1 is provided with a shell air inlet 12 and a shell air outlet 11; a heat exchange air duct and an air outlet air duct 14 are formed in the shell 1, and the heat exchange air duct is communicated with the shell air inlet 12 so that indoor air enters the heat exchange air duct from the shell air inlet 12; a heat exchanger 4 is arranged in the heat exchange air duct, and the heat exchanger 4 is arranged on the shell 1 and is used for exchanging heat of indoor air in the heat exchange air duct to form air-conditioning air; the heat exchange air duct is communicated with the air outlet air duct, and the air outlet air duct is communicated with the shell air outlet 11, so that air-conditioning air in the heat exchange air duct can flow into a room from the shell air outlet 11 through the air outlet air duct; a heat exchange fan 5 is arranged in the air outlet air duct, the heat exchange fan 5 is arranged on the shell 1, indoor air outside the shell 1 is led into the heat exchange air duct through a shell air inlet 12 and subjected to heat exchange through a heat exchanger 4 to form air-conditioning air, and then the air-conditioning air is discharged into the room through a shell air outlet 11; the operation of the heat exchanger 4 and the heat exchange fan 5 is used for refrigerating or heating the air outside the shell 1, so that the comfortable temperature of a user is achieved; it should be noted that, the heat exchanger 4 is disposed near the housing air inlet 12, and the heat exchange fan 5 is located at a side of the heat exchanger 4 away from the housing air inlet 12, where the air-conditioning air may be hot air or cold air. It should be noted that, in order to make the air-conditioning wind reliably flow out from the casing air outlet 11, the casing 1 is further provided with a guide plate 13 inside, the guide plate 13 is fixedly connected with the casing 1 and is arranged in the air outlet duct 14, the guide plate 13 is arranged along the casing height direction, one end of the guide plate 13 is close to the heat exchanger 4, and the other end of the guide plate 13 extends towards the casing air outlet 11 to guide the flow direction of the air-conditioning wind in the air outlet duct 14.
In order to introduce outdoor fresh air, as shown in fig. 2-4, the indoor unit of the air conditioner is provided with a fresh air module, wherein the fresh air module comprises a fresh air shell 2, a fresh air fan, a fresh air pipe and other parts, the fresh air shell 2 is arranged in the shell 1, a fresh air channel is formed in the fresh air shell 2, the fresh air channel is provided with an air outlet end and an air inlet end, and the fresh air pipe is communicated with the outside and the air inlet end of the fresh air channel; the fresh air duct is internally provided with a fresh air fan, and the fresh air fan is arranged on the fresh air shell 2 so as to introduce outdoor fresh air into the fresh air duct through a fresh air pipe, and the outdoor fresh air in the fresh air duct flows indoors from the air outlet end of the fresh air duct.
In order to reduce the temperature difference between the outdoor fresh air and the air-conditioning air flowing indoors, as shown in fig. 2-7, the air outlet end of the fresh air channel is connected with an air outlet shell 3, the air outlet shell 3 extends along the length direction of the casing 1, an extension air channel 32 extending along the length direction of the casing 1 is arranged in the air outlet shell 3, one end of the extension air channel 32 is a through port end, the other end of the extension air channel is a closed end, the through port end of the extension air channel 32 is an air inlet end, and the air inlet end of the extension air channel 32 is communicated with the fresh air channel; the extension air duct 32 is provided with a fresh air outlet 35, the opening direction of the fresh air outlet 35 is arranged towards the direction away from the shell air inlet 12, the extension air duct 32 is communicated with the heat exchange air duct through the fresh air outlet 35, and outdoor induced air is introduced into the fresh air duct through a fresh air pipe and flows into the heat exchange air duct through the fresh air outlet 35 through the operation of the fresh air fan; the air outlet shell 3 is arranged close to the shell air inlet 12 so as to mix outdoor fresh air with indoor air in the heat exchange air duct and form mixed air, and the mixed air flows into a room from the shell air outlet 11 after being subjected to heat exchange treatment by the heat exchanger 4 through the operation of the heat exchange fan 5.
Because the heat exchange air duct is communicated with the casing air inlet 12, outdoor fresh air flowing into the heat exchange air duct from the fresh air outlet 35 easily flows indoors from the casing air inlet 12, in order to solve the problem, as shown in fig. 4 and 8, the fresh air outlet 35 is arranged on one side of the air outlet casing 3 away from the casing air inlet 12, so as to prevent outdoor fresh air from flowing indoors from the casing air inlet 12. When the fresh air flows from the fresh air outlet 35 to the heat exchange air duct in the extension air duct 32, the air outlet shell 3 can block the outdoor fresh air flowing to the heat exchange air duct due to the fact that the fresh air outlet 35 deviates from the shell air inlet 12, and the heat exchange fan 5 can have suction effect on the outdoor fresh air in the heat exchange air duct during operation, so that the outdoor fresh air in the heat exchange air duct can be prevented from easily flowing indoors from the shell air inlet 12. It should be noted that, although the air outlet housing 3 is disposed close to the housing air inlet 12, and the air outlet housing 3 also blocks the indoor air from entering the heat exchange air duct from the housing air inlet 12 while blocking the outdoor fresh air from flowing into the room from the housing air inlet 12, the size of the air outlet housing 3 in the height direction of the housing 1 is far smaller than the size of the housing air inlet 12, and a certain distance is provided between the air outlet housing 3 and the housing air inlet 12, so that the blocking effect of the air outlet housing 3 on the indoor air is weaker, and the influence on the air intake of the indoor air is smaller. It should be noted that, since the outdoor fresh air flows into the heat exchange air duct and is mixed with the indoor air or the air-conditioning air and then flows into the room through the casing air outlet 11, the noise caused when the outdoor fresh air flows out of the extension air duct 32 can be reduced. Noise reduction's reason is because the heat transfer wind channel is located the casing top on the one hand, has increased the propagation path of noise, can noise reduction, and on the other hand is that after outdoor new trend and the indoor air mix formation air conditioner wind by the casing air outlet discharge, and the velocity of flow of air conditioner wind is less than the velocity of flow of indoor new trend, also can noise reduction.
In the prior art, in order to increase the heat exchange effect of the heat exchanger 4, as shown in fig. 6, the heat exchanger 4 includes a first portion 41 and a second portion 42, where the first portion 41 and the second portion 42 are disposed opposite to each other and extend along the length direction of the casing 1, and the first portion 41 and the second portion 42 are disposed at an angle to each other, so that the first portion 41 and the second portion 42 are disposed in the heat exchange air duct in an inclined manner in the height direction of the casing 1, and thus the heat exchange area of the heat exchanger 4 can be increased as much as possible under the condition that the volume of the heat exchange air duct is constant; the ends of the first portion 41 and the second portion 42 that are close to each other are disposed toward the housing air inlet 12, and the ends of the first portion 41 and the second portion 42 that are far from each other are disposed toward the air outlet duct.
In order to prevent the outdoor fresh air flowing out from the fresh air outlet 35 from flowing randomly, as shown in fig. 5, 6 and 8, the air outlet housing 3 includes a first extension portion 33 and a second extension portion 34, the first extension portion 33 and the second extension portion 34 are disposed opposite to each other and extend in a direction away from the casing air inlet 12, the first extension portion 33 and the second extension portion 34 jointly form the air outlet cavity 31, and the fresh air outlet 35 is disposed toward the air outlet cavity 31, so that the outdoor fresh air flowing out from the fresh air outlet 35 can be gathered in the air outlet cavity 31, thereby facilitating that the air outlet housing 3 blocks the outdoor fresh air flowing from the casing air outlet 11 into a room.
Since the temperature difference between the indoor air and the air-conditioning air is generally smaller than the temperature difference between the outdoor fresh air and the air-conditioning air, in order to enable the outdoor fresh air to directly and quickly contact the heat exchanger 4, the heat exchange effect of the heat exchanger 4 on the outdoor fresh air is increased, one end, close to each other, of the first portion 41 and the second portion 42 is located in the air outlet cavity 31, the first extension portion 33 and the second extension portion 34 are respectively provided with a fresh air outlet 35, the first extension portion 33 is opposite to the first portion 41, and the fresh air outlet 35 of the first extension portion 33 is arranged towards the first portion 41, so that the outdoor fresh air discharged from the fresh air outlet 35 of the first extension portion 33 can be quickly and directly contacted with the first portion 41 for heat exchange treatment; the second extension 34 is disposed opposite to the second portion 42 and the fresh air outlet 35 of the second extension 34 is disposed toward the second portion 42, so that the outdoor fresh air discharged from the fresh air outlet 35 of the second extension 34 can be rapidly and directly contacted with the second portion 42 for heat exchange treatment; the fresh air outlet 35 is arranged on one side of the first extension part 33 facing the air outlet cavity 31, and one side of the second extension part 34 facing the air outlet cavity 31, and the direction of the fresh air outlet 35 of the first extension part 33 is intersected with the direction of the fresh air outlet 35 of the second extension part 34; it should be noted that, in some embodiments, the distance between the first extension portion 33 and the second extension portion 34 gradually increases from the direction away from the casing air inlet 12, so as to increase the size of the air outlet cavity 31, and also increase the blocking effect of the air outlet casing 3 on the outdoor fresh air; it should be noted that, the first extension portion 33 and the second extension portion 34 are respectively provided with a cavity inside, and the cavity inside the first extension portion 33 and the cavity inside the second extension portion 34 are respectively communicated with the extension air duct 32; in addition, it should be noted that the first extension portion 33 is provided with a plurality of fresh air outlets 35, and the plurality of fresh air outlets 35 are arranged along the length direction of the casing 1; the second extension 34 is provided with a plurality of fresh air outlets 35, and the plurality of fresh air outlets 35 are arranged along the length direction of the casing 1 so as to increase the contact area between the outdoor fresh air and the heat exchanger 4, thereby increasing the heat exchange effect of the heat exchanger 4 on the outdoor fresh air. By arranging the air outlet cavity 31, fresh air in the extension air duct 32 can be gathered together, so that the blocking effect of the air outlet shell 3 on the fresh air can be enhanced; through setting up first extension 33 and second extension 34, utilize the new trend air outlet 35 that first extension 33 offered to set up towards first part 41, the new trend air outlet 35 that second extension 34 offered to set up towards second part 42 to make the new trend in the extension wind channel 32 can be fast and directly be connected with heat exchanger 4, in order to increase the heat transfer effect of heat exchanger 4 to outdoor new trend, thereby can prevent that the mixed wind temperature is inhomogeneous. And the fresh air outlet 35 formed in the first extension part 33 is arranged towards the first part 41, and the fresh air outlet 35 formed in the second extension part 34 is arranged towards the second part 42, so that the first part 41 and the second part 42 can have a blocking effect on outdoor fresh air flowing out from the fresh air outlet 35, and outdoor fresh air which is not subjected to heat exchange is prevented from flowing indoors.
In the prior art, the air outlet end of the fresh air duct is generally towards the front side of the casing 1, so that the outdoor fresh air is led to the room, in this embodiment, since the air outlet casing 3 extends along the length direction of the casing 1, the air outlet end of the fresh air duct is arranged along the length direction of the casing 1 in order to facilitate the communication between the extending air duct 32 of the air outlet casing 3 and the fresh air duct of the fresh air casing 2. As shown in fig. 9 to 11, the fresh air casing 2 includes a scroll casing 23, a first casing 24, and a second casing 25, the scroll casing 23 being disposed opposite to the first casing 24 to form a mounting chamber in which the fresh air fan is mounted; the side of the first shell 24, which is away from the volute 23, is opposite to the second shell 25 and forms a purifying chamber, and a purifying module is arranged in the purifying chamber to filter and purify the fresh air, so that impurities and floccules doped in the fresh air are prevented from entering the chamber along with the outdoor fresh air through the volute 23; the installation room and the purification room jointly form a fresh air channel, wherein a fresh air inlet 21 is arranged in the purification room, a fresh air shell air outlet 22 is arranged in the installation cavity and is positioned at the air outlet end of the fresh air channel, outdoor air enters the purification room from the fresh air inlet 21 through a fresh air pipe to be purified, the purified air enters the installation cavity, and finally enters an extension air channel 32 from the fresh air shell air outlet 22. The fresh air shell air outlet 22 is arranged along the length direction of the machine shell 1, and the extension air duct 32 is communicated with the fresh air duct through the fresh air shell air outlet 22, so that outdoor fresh air in the fresh air duct can quickly enter the extension air duct 32 and flow into the air outlet cavity 31 from the fresh air outlet 35; the fresh air shell 2 is provided with a fresh air inlet 21, and a fresh air pipe is arranged at the fresh air inlet 21 so that the fresh air inlet 21 is communicated with the outside.
Because the size of the fresh air shell air outlet 22 is smaller than the size of the air inlet end of the extension air duct 32, in order to facilitate connection of the volute and the air outlet shell 3, as shown in fig. 9, a transition section 6 is arranged at one end of the air outlet shell 3, which is close to the fresh air shell 2, and the size of the transition section 6 gradually increases from the direction away from the volute, so that the fresh air shell 2 is connected with the air outlet shell 3, and the volute 23 and the air outlet shell 3 can be gradually transited by arranging the transition section 6. It should be noted that, the inside of the transition section 6 is a through cavity with two open ends, and two ends of the through cavity of the transition section 6 are respectively communicated with the fresh air duct and the extension air duct 32.
The working principle of the air conditioner indoor unit is as follows: the outdoor fresh air is led into the fresh air duct through the fresh air pipe by the operation of the fresh air fan, enters the extension air duct 32 after purification treatment in the fresh air duct, flows out of the extension air duct 32 from the fresh air outlet 35, and contacts the heat exchanger 4 and performs heat exchange treatment when the outdoor fresh air flows out of the extension air duct 32; meanwhile, through the operation of the heat exchange fan 5, indoor air is introduced into the heat exchange air duct from the shell air inlet 12 and is subjected to heat exchange treatment by the heat exchanger 4, outdoor fresh air in the heat exchange air duct is mixed with indoor air to form mixed air, and the mixed air enters the air outlet air duct 14 under the operation of the heat exchange fan 5 and flows indoors from the shell air outlet 11.
It should be noted that, a part of the outdoor fresh air flowing out of the extension air duct 32 from the fresh air outlet 35 directly contacts the heat exchanger 4 to perform heat exchange treatment, another part of the outdoor fresh air may be mixed with indoor air which is not subjected to heat exchange and then passes through the heat exchanger 4, a part of the outdoor fresh air may be mixed with indoor air after heat exchange, and a part of the outdoor fresh air may be mixed with indoor air before heat exchange. It is clear that the air-conditioning air entering the air outlet duct 14 from the heat exchange duct is a mixed air of outdoor fresh air and indoor air, and the mixed air is subjected to heat exchange treatment; the technology is common in the art, and will not be described in detail herein;
the air conditioner indoor unit is provided with the air outlet shell 3 to form the extension air duct 32, and the extension air duct 32 is communicated with the fresh air duct and the heat exchange air duct to discharge the outdoor fresh air into the heat exchange air duct, so that the outdoor fresh air is mixed with the indoor air and is discharged into the room after heat exchange of the heat exchanger 4, the mixing time of the outdoor fresh air and the indoor air can be prolonged, and the outdoor fresh air and the indoor air are fully mixed; because the outdoor fresh air is subjected to heat exchange treatment in the heat exchange air duct, the temperature difference between the outdoor fresh air and the indoor air subjected to heat exchange can be reduced, the temperature of the mixed air is prevented from being uneven, and condensation at the air outlet 11 of the shell is also prevented; meanwhile, the outdoor fresh air flows into the heat exchange air duct and then flows into the room through the air outlet air duct 14, so that noise caused by the outdoor fresh air flowing into the room is reduced; the air conditioner indoor unit is simple in structure and convenient to arrange.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
The foregoing description, for purposes of explanation, has been presented in conjunction with specific embodiments. However, the illustrative discussions above are not intended to be exhaustive or to limit the embodiments to the precise forms disclosed above. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles and the practical application, to thereby enable others skilled in the art to best utilize the embodiments and various embodiments with various modifications as are suited to the particular use contemplated.
Claims (10)
1. An air conditioning indoor unit, comprising:
the shell is provided with a shell air inlet and a shell air outlet; the length direction from the left side of the shell to the right side of the shell is the length direction of the shell; a heat exchange air duct and an air outlet air duct which are mutually communicated are formed in the shell, the heat exchange air duct is communicated with the shell air inlet, and the air outlet air duct is communicated with the shell air outlet;
the heat exchanger is arranged in the heat exchange air duct;
the heat exchange fan is arranged in the air outlet air duct;
the fresh air shell is arranged in the shell, and a fresh air channel for introducing outdoor fresh air is formed in the fresh air shell;
the fresh air fan is arranged in the fresh air duct;
the air outlet shell is connected with the fresh air shell and is positioned in the heat exchange air duct; the air outlet shell extends along the length direction of the shell and is arranged opposite to the air outlet of the shell; an extension air duct communicated with the fresh air duct is arranged inside the air outlet shell;
the fresh air outlet is arranged on one side of the air outlet shell, which is away from the air inlet of the shell, and is arranged towards the heat exchange air duct and communicated with the extension air duct;
when the fresh air fan operates, outdoor fresh air is introduced into the fresh air duct and flows to the heat exchange duct from the fresh air outlet through the extension duct, and indoor air is introduced into the heat exchange duct from the shell air inlet and is mixed with the outdoor fresh air in the heat exchange duct to form mixed air through the operation of the heat exchange fan.
2. The indoor unit of claim 1, wherein the air outlet casing includes a first extension portion and a second extension portion, the first extension portion and the second extension portion are disposed opposite to each other and extend in directions away from the air inlet of the casing, the first extension portion and the second extension portion together form an air outlet cavity in communication with the heat exchange air duct, and the fresh air outlet is disposed toward the air outlet cavity.
3. The indoor unit of claim 2, wherein a distance between the first extension and the second extension increases gradually from a direction away from the intake opening of the housing.
4. The indoor unit of claim 3, wherein the fresh air outlet is formed on a side of the first extension portion facing the air outlet cavity and a side of the second extension portion facing the air outlet cavity.
5. The indoor unit of claim 4, wherein the first extension portion is provided with a plurality of fresh air outlets, and the plurality of fresh air outlets are arranged along a length direction of the casing.
6. The indoor unit of claim 4, wherein the second extension portion is provided with a plurality of fresh air outlets, and the plurality of fresh air outlets are arranged along a length direction of the casing.
7. An air conditioning indoor unit according to claim 2 or claim 4, wherein the heat exchanger includes oppositely disposed first and second portions extending along the length of the casing and disposed at an angle; one end of the first part, which is close to the second part, is positioned in the air outlet cavity.
8. The indoor unit of claim 7, wherein the first extension is disposed opposite the first portion and a fresh air outlet of the first extension is disposed toward the first portion; the second extension portion is arranged opposite to the second portion, and a fresh air outlet of the second extension portion is arranged towards the second portion.
9. The indoor unit of claim 2, wherein a transition section is disposed at an end of the air outlet casing adjacent to the fresh air casing, and the transition section gradually increases in size from a direction away from the fresh air casing.
10. The indoor unit of claim 9, wherein the fresh air casing has a fresh air casing air inlet and a fresh air casing air outlet, the fresh air casing air outlet is disposed along a length direction of the casing, and the fresh air duct is communicated with the extension duct through the fresh air casing air outlet; and the fresh air shell air inlet is communicated with outdoor air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320732329.1U CN219797359U (en) | 2023-04-04 | 2023-04-04 | Indoor unit of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320732329.1U CN219797359U (en) | 2023-04-04 | 2023-04-04 | Indoor unit of air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219797359U true CN219797359U (en) | 2023-10-03 |
Family
ID=88182174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320732329.1U Active CN219797359U (en) | 2023-04-04 | 2023-04-04 | Indoor unit of air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219797359U (en) |
-
2023
- 2023-04-04 CN CN202320732329.1U patent/CN219797359U/en active Active
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