CN112303019A - Air duct structure and air conditioner indoor unit with same - Google Patents
Air duct structure and air conditioner indoor unit with same Download PDFInfo
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- CN112303019A CN112303019A CN201910713914.5A CN201910713914A CN112303019A CN 112303019 A CN112303019 A CN 112303019A CN 201910713914 A CN201910713914 A CN 201910713914A CN 112303019 A CN112303019 A CN 112303019A
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- Prior art keywords
- air
- air duct
- fan blade
- blade assembly
- guide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/403—Casings; Connections of working fluid especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/601—Mounting; Assembling; Disassembling specially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air-Flow Control Members (AREA)
Abstract
The invention provides an air duct structure and an air conditioner indoor unit with the same, wherein the air duct structure is used for guiding air flow and comprises: the first air duct is internally provided with a first fan blade assembly; the first air duct is communicated with the second air duct, and a second fan blade assembly is arranged in the second air duct so as to rotate around a preset axis in the same direction, so that the airflow is sucked by the first air duct and then blown out by the second air duct or is sucked by the second air duct and then blown out by the first air duct; the air conditioner comprises a first air duct, a second air duct and a flow guide assembly, wherein the flow guide assembly is arranged between the first air duct and the second air duct so as to guide the air flow in the first air duct into the second air duct or guide the air flow in the second air duct into the first air duct, and therefore the problem that the air conditioner in the prior art is low in energy utilization rate of the air flow is solved.
Description
Technical Field
The invention relates to the field of mechanical design, in particular to an air duct structure and an air conditioner indoor unit with the same.
Background
At present, the air conditioner has become indispensable household electrical appliances, and the air conditioner has multiple air-out mode to satisfy user's needs, wherein, the air conditioner air-out mainly relies on in the wind channel to lead the air current.
Through making the wind channel be provided with two tuyeres in order to realize refrigeration mode or mode of heating among the current air conditioning indoor set, the air current gets into the wind channel by first wind gap and blows out or the air current blows in by the second wind gap and blows out by first wind gap, however, above-mentioned two kinds of air-out modes can make two tuyeres blow out the air current that the temperature is different simultaneously, and then has reduced energy utilization and user's human travelling comfort.
Disclosure of Invention
The invention mainly aims to provide an air duct structure and an air conditioner indoor unit with the same, and aims to solve the problem that an air conditioner in the prior art is low in energy utilization rate of airflow.
In order to achieve the above object, according to one aspect of the present invention, there is provided an air duct structure for guiding an air flow, the air duct structure comprising: the first air duct is internally provided with a first fan blade assembly; the first air duct is communicated with the second air duct, and a second fan blade assembly is arranged in the second air duct so as to rotate around a preset axis in the same direction, so that the airflow is sucked by the first air duct and then blown out by the second air duct or is sucked by the second air duct and then blown out by the first air duct; and the flow guide assembly is arranged between the first air channel and the second air channel so as to guide the airflow in the first air channel into the second air channel or guide the airflow in the second air channel into the first air channel.
Further, the guide assembly includes: the first air duct and the second air duct are communicated through the air guide cover, and the air guide cover is provided with a passing space for air flow to pass through; guide vane, guide vane install in passing through the space, guide vane is a plurality of, and a plurality of guide vane encircle the axis looks interval arrangement of kuppe to constitute between two adjacent guide vane and be used for carrying out the water conservancy diversion interval that leads to the air current.
Further, the first air duct is provided with a first air opening so that the air flow flows into or out of the first air duct through the first air opening; the body of the first fan blade assembly extends along the direction of the preset axis and extends out of the end face of the first air opening.
Further, an opening is formed in the side wall of the first air duct and extends to the first air port, so that the air guiding quantity of the first fan blade assembly is increased through the opening.
Further, the wind channel structure still includes: the first necking part is provided with a first side wall at least partially opposite to the body of the second fan blade assembly; the first power device is connected with the first necking part to drive the first side wall to stretch and retract towards the direction close to or far away from the second fan blade assembly through the first power device, so that the radial air suction volume of the second fan blade assembly is increased or reduced.
Furthermore, the body of the second fan blade assembly extends along the direction of the preset axis, and one end of the second fan blade assembly is located on one side, close to the first fan blade assembly, of the first necking part.
Furthermore, the first fan blade assembly is provided with a first hub, the second fan blade assembly is provided with a second hub, the first hub and the second hub are in a cone frustum shape, and a first large-diameter end of the first hub is opposite to a second small-diameter end of the second hub.
Further, the wind channel structure still includes: and the driving device is respectively in driving connection with the first fan blade assembly and the second fan blade assembly so as to drive the first fan blade assembly and the second fan blade assembly to rotate around a preset axis in the same direction.
Further, the wind channel structure still includes: the mounting panel is installed between first wind channel and second wind channel, and the at least part of water conservancy diversion subassembly is installed on the mounting panel.
Further, the second air duct further includes: the air guide part is arranged on one side, far away from the first fan blade component, of the second fan blade component and is provided with a plurality of third guide vanes which are arranged at intervals around a preset axis so as to form a guide gap between every two adjacent third guide vanes, and the guide gap extends along the direction of the preset axis so as to guide air flow.
Further, the wind channel structure still includes: the second necking part is arranged on one side of the wind guide part, which is far away from the second fan blade assembly, so that airflow flows out of or into the second air duct through the second necking part, and the second necking part is provided with a second side wall; and the second throttling part is connected with the second power device so as to drive the second side wall to stretch and retract towards the direction close to or far from the preset axis through the second power device, so that the flow of the air flow in the second throttling part is adjusted.
According to another aspect of the present invention, there is provided an indoor unit of an air conditioner, including an evaporator and an air duct structure, both of which are installed in a body of the indoor unit of the air conditioner, at least a portion of the evaporator is opposite to an air outlet of the air duct structure, and the air duct structure is the above-mentioned air duct structure.
Furthermore, the evaporator is provided with a first plate body and a second plate body, the first plate body and the second plate body are arranged at intervals, and the distance between the first plate body and the second plate body is gradually reduced along the direction of the air port far away from the air channel structure.
Further, the air duct structure is the air duct structure; the second air duct is provided with a second air opening so that the air flow flows into or out of the second air duct through the second air opening; the machine body is provided with a first ventilation opening and a second ventilation opening, the first ventilation opening is communicated with the first ventilation opening, and the second ventilation opening is communicated with the second ventilation opening, so that airflow flows into the air channel structure through the first ventilation opening and then is blown out through the second ventilation opening, or airflow flows into the air channel structure through the second ventilation opening and then is blown out through the first ventilation opening.
Further, the air-conditioning indoor unit has a first ventilation mode and a second ventilation mode: when the air conditioning indoor unit is in a first ventilation mode, the first fan blade assembly and the second fan blade assembly rotate in a first direction, so that airflow is sucked into the first air duct through the first ventilation opening, is discharged from the second air opening through the second air duct, and is discharged into a room through the second ventilation opening after heat exchange is carried out through the evaporator; when the air conditioning indoor unit is in the second ventilation mode, the first fan blade assembly and the second fan blade assembly rotate along the second direction, airflow is sucked into the machine body through the second ventilation opening to perform heat exchange with the evaporator, and then is guided into the second air channel through the second ventilation opening, and then flows through the first air channel to the first ventilation opening to be discharged into a room through the first ventilation opening.
Further, the wind channel structure still includes: the first necking part is provided with a first side wall at least partially opposite to the body of the second fan blade component of the air duct structure; the first necking part is connected with the first power device so as to drive the first side wall to stretch towards the direction close to or far away from the second fan blade assembly through the first power device, and the radial air suction quantity of the second fan blade assembly is increased or reduced; when the air conditioning indoor unit is in the first ventilation mode, the first power device drives the first side wall to move towards the direction close to the second fan blade assembly so as to increase the radial air suction volume of the second fan blade assembly.
By applying the technical scheme of the invention, the air channel structure is used for guiding airflow, wherein the air channel structure comprises a first air channel, a second air channel and a flow guide assembly, a first fan blade assembly is arranged in the first air channel, the first air channel is communicated with the second air channel, a second fan blade assembly is arranged in the second air channel, so that the first fan blade component and the second fan blade component rotate around the preset axis in the same direction to make the airflow blown out from the second air channel after being sucked in by the first air channel or make the airflow blown out from the first air channel after being sucked in by the second air channel, the flow guide component is arranged between the first air channel and the second air channel, the air conditioner has the advantages that the air flow in the first air channel is guided into the second air channel or the air flow in the second air channel is guided into the first air channel, the switching of the flow direction of the air flow can be realized, the structure is simple, the realization is convenient, the one-way air inlet and the air outlet of the air channel structure can be guaranteed, and the problem of low energy utilization rate of the air conditioner in the prior art to the air flow is solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 shows a first cross-sectional view of a tunnel structure according to the present invention;
FIG. 2 illustrates a second cross-sectional view of the air duct structure according to the present invention;
FIG. 3 is a schematic structural view illustrating a first perspective of a duct structure according to the present invention;
FIG. 4 is a schematic structural view illustrating a second perspective of the air duct structure according to the present invention;
FIG. 5 is a schematic structural view illustrating a third perspective of the air duct structure according to the present invention;
FIG. 6 is a schematic structural view illustrating a fourth perspective of the air duct structure according to the present invention;
FIG. 7 shows a schematic structural diagram of a first perspective embodiment of a mounting plate according to the present invention;
FIG. 8 shows a top view of a mounting plate according to the present invention;
FIG. 9 shows a schematic structural diagram of an embodiment of a second perspective of a mounting plate according to the present invention;
FIG. 10 shows a bottom view of the mounting plate according to the present invention;
fig. 11 is a schematic view showing a first ventilation mode of an air conditioning indoor unit according to the present invention;
fig. 12 is a schematic view showing the construction of a second ventilating mode of an indoor unit of an air conditioner according to the present invention;
figure 13 shows a schematic structural view of an embodiment of a first or second fan assembly according to the present invention;
fig. 14 shows a schematic structural diagram of a second fan assembly or an embodiment of a second fan assembly according to the present invention.
Wherein the figures include the following reference numerals:
1. an evaporator; 2. a body; 3. a first vent; 4. a second vent;
10. a first air duct; 11. a first fan blade assembly; 12. a first tuyere; 13. an opening; 20. a second air duct; 21. a second fan blade assembly; 22. a wind guide part; 220. a third guide vane; 2201. a flow guide gap; 23. a second tuyere; 30. mounting a plate; 31. a drive device;
32. a flow guide assembly; 320. a guide vane; 3201. a first guide vane; 3202. a second guide vane; 321. a pod; 322. flow guiding intervals; 3220. a first flow guide interval; 3221. a second flow guide interval; 323. a second passage space; 324. a first passage space; 302. mounting holes; 40. a first choke portion; 50. a second choke portion.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The present invention provides an air duct structure, please refer to fig. 1 to 14, for guiding an air flow, the air duct structure includes: the fan comprises a first air duct 10, wherein a first fan blade assembly 11 is arranged in the first air duct 10; the first air duct 10 is communicated with the second air duct 20, and a second fan blade assembly 21 is arranged in the second air duct 20 so as to rotate around a preset axis in the same direction of the first fan blade assembly 11 and the second fan blade assembly 21, so that the airflow is sucked by the first air duct 10 and then blown out by the second air duct 20 or is sucked by the second air duct 20 and then blown out by the first air duct 10; the air guide assembly 32 is disposed between the first air duct 10 and the second air duct 20, so as to guide the airflow in the first air duct 10 into the second air duct 20 or guide the airflow in the second air duct 20 into the first air duct 10.
According to the air duct structure provided by the invention, which is used for guiding the air flow, the air duct structure comprises a first air duct 10, a second air duct 20 and a flow guide assembly 32, wherein the first air duct 10 is internally provided with a first fan blade assembly 11, the first air duct 10 is communicated with the second air duct 20, the second air duct 20 is internally provided with a second fan blade assembly 21, so that the first fan blade assembly 11 and the second fan blade assembly 21 rotate in the same direction around a preset axis, the air flow is sucked into the first air duct 10 and then blown out from the second air duct 20 or sucked into the second air duct 20 and then blown out from the first air duct 10, the flow guide assembly 32 is arranged between the first air duct 10 and the second air duct 20, so as to guide the air flow in the first air duct 10 into the second air duct 20 or guide the air flow in the second air duct 20 into the first air duct 10, the switching of the air flow direction of the air flow can be realized, the structure is simple and convenient to realize, the unidirectional air inlet and outlet of the air duct, the problem of air conditioner among the prior art low to the energy utilization of air current is solved.
Specifically, the flow guide assembly 32 includes: the air guide sleeve 321, through which the first air duct 10 and the second air duct 20 communicate, the air guide sleeve 321 having a passing space for passing an air flow; the guide vanes 320 are installed in the passing space, the guide vanes 320 are multiple, the guide vanes 320 are arranged around the axis of the guide sleeve 321 at intervals, so that a guide interval 322 for guiding the airflow is formed between every two adjacent guide vanes 320, and the axis of the guide sleeve 321 is overlapped with a preset axis; the flow guiding interval 322 extends along the direction of the predetermined axis, and by arranging the flow guiding assembly 32, the airflow flowing along the circumferential direction in the first air duct 10 or the second air duct 20 is guided by the flow guiding interval 322, so that the airflow flows along the direction of the predetermined axis, the eddy loss between the airflows is reduced, the efficiency of the first fan blade assembly 11 and the efficiency of the second fan blade assembly 21 are improved, and the air output of the air duct structure is increased.
In specific implementation, the first air duct 10 has a first air opening 12, so that the air flow flows into or out of the first air duct 10 through the first air opening 12; the body of the first fan blade assembly 11 extends along the direction of the preset axis and extends out of the end surface of the first tuyere 12.
Be provided with opening 13 on the lateral wall of first wind channel 10, opening 13 extends to first wind gap 12 to increase the induced air volume or the air output of first fan blade subassembly 11 through opening 13, when first wind gap 12 air-out, can derive the air current through opening 13, make the inside resistance in first wind channel 10 reduce, improved the work efficiency in first wind channel 10, reduced the eddy current loss of air current.
In an embodiment provided by the present invention, the air duct structure further includes: a first choke 40, wherein the first choke 40 has a first side wall at least partially opposite to the body of the second fan blade assembly 21; the first power device and the first necking part 40 are connected with the first power device, so that the first side wall is driven by the first power device to stretch and retract towards the direction close to or far away from the second fan blade assembly 21, the radial air suction quantity of the second fan blade assembly 21 is increased or reduced, and the work efficiency of the second air duct 20 is improved.
Specifically, the body of the second blade assembly 21 extends along the direction of the predetermined axis, and one end of the second blade assembly 21 is located on one side of the first throat portion 40 close to the first blade assembly 11.
Further, as shown in fig. 13 and 14, the first fan blade assembly 11 has a first hub, the second fan blade assembly 21 has a second hub, the first hub and the second hub are both in a truncated cone shape, the first hub has a first large diameter end and a first small diameter end, the second hub has a second large diameter end and a second small diameter end, the air outlet or inlet of the first large diameter end is realized by changing the rotation direction of the first fan blade assembly 11, and the air outlet or inlet of the second large diameter end is realized by changing the rotation direction of the second fan blade assembly 21.
In order to facilitate driving the first blade assembly 11 and the second blade assembly 21, the air duct structure further includes: the driving device 31 is respectively in driving connection with the first fan blade assembly 11 and the second fan blade assembly 21 so as to drive the first fan blade assembly 11 and the second fan blade assembly 21 to rotate around a preset axis in the same direction; specifically, a first driving shaft of the driving device 31 is in driving connection with a first large diameter end of the first hub, and a second driving shaft of the driving device 31 is in driving connection with a second small diameter end of the second hub.
The wind channel structure still includes: a mounting plate 30, the mounting plate 30 being mounted between the first air duct 10 and the second air duct 20, and at least a portion of the flow guide assembly 32 being mounted on the mounting plate 30.
In the implementation process, the second air duct 20 further includes: the air guiding portion 22 is disposed on one side of the second fan blade assembly 21 away from the first fan blade assembly 11, the air guiding portion 22 has a plurality of third guide vanes 220, the plurality of third guide vanes 220 are arranged around the predetermined axis at intervals, so as to form a guide gap 2201 between two adjacent third guide vanes 220, the guide gap 2201 extends along the direction of the predetermined axis, so as to guide the airflow, reduce the eddy loss generated by the second fan blade assembly 21, and improve the air intake or air output of the second air duct 20.
Specifically, the air duct structure further includes: the second choke 50, the second choke 50 is disposed on one side of the wind guiding portion 22 away from the second blade assembly 21, so that the air flows out of or into the second air duct 20 through the second choke 50, and the second choke 50 has a second sidewall; and the second throttling part 50 is connected with the second power device so as to drive the second side wall to extend and retract towards the direction close to or far away from the preset axis through the second power device, so that the flow rate of the airflow in the second throttling part 50 is adjusted.
In another embodiment provided by the present invention, the guide vane 320 includes a first guide vane 3201 and a second guide vane 3202, the first through space 324 and the second through space 323 are provided in the guide casing, the first through space 324 communicates with the second through space 323, the first guide vane 3201 is disposed in the first through space 324, the second guide vane 3202 is disposed in the second through space 323, the first guide vane 3201 is plural, the plural first guide vanes 3201 are arranged around an axis of the first through space 324 at intervals to form a first guide interval 3220 between two adjacent first guide vanes 3201; the number of the second guide vanes 3202 is multiple, the multiple second guide vanes 3202 are arranged around the axis of the second through space 323 at intervals, so as to form a second guide interval 3221 between two adjacent second guide vanes 3202, wherein the first guide interval 3220 and the second guide interval 3221 are multiple, the multiple first guide intervals 3220 and the multiple second guide intervals 3221 are arranged in a one-to-one correspondence manner, so as to guide the airflow, and the axis of the first through space 324 and the axis of the second through space 323 coincide with the axis of the guide sleeve; the second passing space 323 is further provided with a mounting hole 302, the second guide vanes 3202 are arranged between the outer wall of the mounting hole 302 and the inner wall of the second passing space 323, the driving device 31 is mounted in the mounting hole 302, the driving device 31 is provided with a first output shaft and a second output shaft, the first output shaft is in driving connection with the first fan blade assembly 11, and the second output shaft is in driving connection with the second fan blade assembly 21.
The invention also provides an air-conditioning indoor unit, which comprises an evaporator 1 and an air duct structure, wherein the evaporator 1 and the air duct structure are both arranged in a machine body 2 of the air-conditioning indoor unit, at least part of the evaporator 1 is opposite to an air port of the air duct structure, and the air duct structure is the air duct structure of the embodiment.
Specifically, in order to improve the heat exchange efficiency between the air flow and the evaporator 1, the evaporator 1 has a first plate body and a second plate body, the first plate body and the second plate body are arranged at an interval, and the distance between the first plate body and the second plate body is gradually reduced along the direction of the air port far away from the air duct structure.
In an embodiment provided by the invention, the air duct structure is the air duct structure of the above embodiment; the second air duct 20 has a second air opening 23, so that the air flow flows into or out of the second air duct 20 through the second air opening 23; the machine body 2 is provided with a first ventilation opening 3 and a second ventilation opening 4, the first ventilation opening 3 is communicated with the first ventilation opening 12, and the second ventilation opening 4 is communicated with the second ventilation opening 23, so that airflow flows into the air channel structure through the first ventilation opening 3 and then is blown out through the second ventilation opening 4, or airflow flows into the air channel structure through the second ventilation opening 4 and then is blown out through the first ventilation opening 3.
The air-conditioning indoor unit has a first ventilation mode and a second ventilation mode: when the air conditioning indoor unit is in the first ventilation mode, the first fan blade assembly 11 and the second fan blade assembly 21 rotate along the first direction, so that airflow is sucked into the first air duct 10 through the first ventilation opening 3, is discharged out of the second air opening 23 through the second air duct 20, and is discharged into a room through the second ventilation opening 4 after heat exchange is carried out through the evaporator 1; when the air conditioning indoor unit is in the second ventilation mode, the first fan blade assembly 11 and the second fan blade assembly 21 rotate along the second direction, airflow is sucked into the machine body 2 through the second ventilation opening 4 to exchange heat with the evaporator 1, then is guided into the second air duct 20 through the second ventilation opening 23, and then flows through the first air duct 10 to the first ventilation opening 12 to be discharged into a room through the first ventilation opening 3.
Specifically, when the air-conditioning indoor unit is in the first ventilation mode, the first power device drives the first side wall to move towards the direction close to the second fan blade assembly 21 so as to increase the radial air suction volume of the second fan blade assembly 21, and further, the air output and the energy utilization rate of airflow of the air-conditioning indoor unit are improved; meanwhile, the second power device drives the second side wall to move towards the direction close to the preset axis, wherein the direction of the preset axis is consistent with the direction of the middle part of the air duct, so that air flow in the air duct flows out more intensively, and the air outlet efficiency is improved.
In the specific use process, the air conditioner comprises a cooling mode and a heating mode, in the embodiment, taking a vertical air conditioner as an example, the first ventilation opening 3 is located at the lower part of the air conditioner body, the second ventilation opening 4 is located at the upper part of the air conditioner body, when the air conditioner is in the heating mode, air is sucked by the second air duct 20, and hot air flows through the first air duct 10 and then is discharged into a room through the first ventilation opening 3; when the air conditioner is in a refrigeration mode, air is sucked by the first air duct 10, and cold air flows through the second air duct 20 and then is discharged into a room through the second air vent 4, so that the energy utilization rate of the air conditioner on air flow is improved, and the comfort level of a user is improved.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
according to the air duct structure provided by the invention, which is used for guiding the air flow, the air duct structure comprises a first air duct 10, a second air duct 20 and a flow guide assembly 32, wherein the first air duct 10 is internally provided with a first fan blade assembly 11, the first air duct 10 is communicated with the second air duct 20, the second air duct 20 is internally provided with a second fan blade assembly 21, so that the first fan blade assembly 11 and the second fan blade assembly 21 rotate in the same direction around a preset axis, the air flow is sucked into the first air duct 10 and then blown out from the second air duct 20 or sucked into the second air duct 20 and then blown out from the first air duct 10, the flow guide assembly 32 is arranged between the first air duct 10 and the second air duct 20, so as to guide the air flow in the first air duct 10 into the second air duct 20 or guide the air flow in the second air duct 20 into the first air duct 10, the switching of the air flow direction of the air flow can be realized, the structure is simple and convenient to realize, the unidirectional air inlet and outlet of the air duct, the problem of air conditioner among the prior art low to the energy utilization of air current is solved.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (16)
1. An air duct structure for directing an air flow, the air duct structure comprising:
the fan comprises a first air duct (10), wherein a first fan blade assembly (11) is arranged in the first air duct (10);
the first air duct (10) is communicated with the second air duct (20), and a second fan blade assembly (21) is arranged in the second air duct (20) and rotates around a preset axis in the same direction of the first fan blade assembly (11) and the second fan blade assembly (21), so that airflow is sucked by the first air duct (10) and then blown out by the second air duct (20) or blown out by the first air duct (10) after being sucked by the second air duct (20);
the air guide assembly (32) is arranged between the first air duct (10) and the second air duct (20) so as to guide the airflow in the first air duct (10) into the second air duct (20) or guide the airflow in the second air duct (20) into the first air duct (10).
2. The air duct structure according to claim 1, characterized in that the flow guide assembly (32) comprises:
the air guide sleeve (321) is used for communicating the first air duct (10) and the second air duct (20) through the air guide sleeve (321), and the air guide sleeve (321) is provided with a passing space for air flow to pass through;
guide vane (320), guide vane (320) install in through the space, guide vane (320) are a plurality of, and a plurality of guide vane (320) encircle the axis looks interval ground of kuppe (321) arranges to adjacent two constitute between guide vane (320) and be used for the guide to the air current to lead interval (322).
3. The air duct structure according to claim 1, characterized in that the first air duct (10) has first air openings (12) for allowing air to flow into or out of the first air duct (10) through the first air openings (12); the body of the first fan blade assembly (11) extends along the direction of the preset axis and extends out of the end face of the first air port (12).
4. The air duct structure according to claim 3, characterized in that an opening (13) is provided on a side wall of the first air duct (10), and the opening (13) extends to the first air port (12) to increase an induced air amount of the first fan blade assembly (11) through the opening (13).
5. The air duct structure according to claim 1, characterized in that the air duct structure further comprises:
a first throat (40), the first throat (40) having a first sidewall at least partially opposite the body of the second fan assembly (21);
the first necking part (40) is connected with the first power device, so that the first side wall is driven by the first power device to stretch and retract towards the direction close to or far away from the second fan blade assembly (21), and the radial air suction volume of the second fan blade assembly (21) is increased or reduced.
6. The air duct structure according to claim 5, characterized in that the body of the second fan blade assembly (21) extends along the direction of the predetermined axis, and one end of the second fan blade assembly (21) is located on one side of the first throat portion (40) close to the first fan blade assembly (11).
7. The air duct structure according to any one of claims 1 to 6, wherein the first fan blade assembly (11) has a first hub, the second fan blade assembly (21) has a second hub, the first hub and the second hub are both in a truncated cone shape, and a first large diameter end of the first hub is arranged opposite to a second small diameter end of the second hub.
8. The air duct structure according to any one of claims 1 to 6, characterized in that the air duct structure further comprises:
the driving device (31) is in driving connection with the first fan blade assembly (11) and the second fan blade assembly (21) respectively, so that the first fan blade assembly (11) and the second fan blade assembly (21) are driven to rotate around the preset axis in the same direction.
9. The air duct structure according to any one of claims 1 to 6, characterized in that the air duct structure further comprises:
a mounting plate (30), the mounting plate (30) is installed between the first air duct (10) and the second air duct (20), and at least part of the flow guide assembly (32) is installed on the mounting plate (30).
10. The air duct structure according to any one of claims 1 to 6, characterized in that the second air duct (20) further includes:
the air guide part (22), the air guide part (22) is arranged on one side, away from the first fan blade assembly (11), of the second fan blade assembly (21), the air guide part (22) is provided with a plurality of third guide vanes (220), the plurality of third guide vanes (220) are arranged around the preset axis at intervals, so that a guide gap (2201) is formed between every two adjacent third guide vanes (220), and the guide gap (2201) extends along the direction of the preset axis to guide air flow.
11. The air duct structure according to claim 10, further comprising:
the second necking part (50) is arranged on one side, away from the second fan blade assembly (21), of the air guide part (22), so that air flows out of or into the second air duct (20) through the second necking part (50), and the second necking part (50) is provided with a second side wall;
the second throttling part (50) is connected with the second power device so as to drive the second side wall to extend and retract towards the direction close to or far away from the preset axis through the second power device, and therefore the flow rate of the air flow in the second throttling part (50) is adjusted.
12. An air-conditioning indoor unit, comprising an evaporator (1) and an air duct structure, wherein the evaporator (1) and the air duct structure are both installed in a body (2) of the air-conditioning indoor unit, at least part of the evaporator (1) is opposite to an air port of the air duct structure, and the air duct structure is the air duct structure of any one of claims 1 to 11.
13. The indoor unit of claim 12, wherein the evaporator (1) has a first plate and a second plate, the first plate and the second plate are spaced apart from each other, and a distance between the first plate and the second plate decreases in a direction away from the air inlet of the air duct structure.
14. An indoor unit of an air conditioner according to claim 13, wherein the air duct structure is the air duct structure according to claim 3; the second air duct (20) has a second air opening (23) so that the air flows into or out of the second air duct (20) through the second air opening (23);
the air conditioner is characterized in that a first ventilation opening (3) and a second ventilation opening (4) are arranged on the machine body (2), the first ventilation opening (3) is communicated with the first ventilation opening (12), and the second ventilation opening (4) is communicated with the second ventilation opening (23), so that airflow flows into the air channel structure through the first ventilation opening (3) and then is blown out through the second ventilation opening (4) or flows into the air channel structure through the second ventilation opening (4) and then is blown out through the first ventilation opening (3).
15. An air conditioning indoor unit according to claim 14, wherein the air conditioning indoor unit has a first ventilation mode and a second ventilation mode:
when the indoor unit of the air conditioner is in the first ventilation mode, the first fan blade assembly (11) and the second fan blade assembly (21) rotate along a first direction, so that airflow is sucked into the first air channel (10) through the first ventilation opening (3), discharged out through the second air opening (23) after passing through the second air channel (20), and then discharged into a room through the second ventilation opening (4) after heat exchange is carried out through the evaporator (1);
when the indoor unit of the air conditioner is in the second ventilation mode, the first fan blade assembly (11) and the second fan blade assembly (21) rotate along a second direction, airflow is sucked into the machine body (2) through the second ventilation opening (4) to exchange heat with the evaporator (1), and then is guided into the second air channel (20) through the second ventilation opening (23), and then flows into the first air opening (12) through the first air channel (10) to be discharged into the room through the first ventilation opening (3).
16. An indoor unit of an air conditioner according to claim 15, wherein the air duct structure further includes:
the first necking part (40) is provided with a first side wall at least partially opposite to the body of the second fan blade assembly (21) of the air duct structure;
the first necking part (40) is connected with the first power device so as to drive the first side wall to stretch and retract towards the direction close to or far away from the second fan blade assembly (21) through the first power device, and the radial air suction quantity of the second fan blade assembly (21) is increased or reduced;
when the air-conditioning indoor unit is in the first ventilation mode, the first power device drives the first side wall to move towards the direction close to the second fan blade assembly (21) so as to increase the radial air suction volume of the second fan blade assembly (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910713914.5A CN112303019A (en) | 2019-08-02 | 2019-08-02 | Air duct structure and air conditioner indoor unit with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910713914.5A CN112303019A (en) | 2019-08-02 | 2019-08-02 | Air duct structure and air conditioner indoor unit with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112303019A true CN112303019A (en) | 2021-02-02 |
Family
ID=74485242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910713914.5A Pending CN112303019A (en) | 2019-08-02 | 2019-08-02 | Air duct structure and air conditioner indoor unit with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112303019A (en) |
-
2019
- 2019-08-02 CN CN201910713914.5A patent/CN112303019A/en active Pending
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