CN110793104B - Air supply assembly and air conditioner indoor unit - Google Patents
Air supply assembly and air conditioner indoor unit Download PDFInfo
- Publication number
- CN110793104B CN110793104B CN201810778839.6A CN201810778839A CN110793104B CN 110793104 B CN110793104 B CN 110793104B CN 201810778839 A CN201810778839 A CN 201810778839A CN 110793104 B CN110793104 B CN 110793104B
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- Prior art keywords
- air
- air supply
- air inlet
- peripheral wall
- wall
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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
- F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
- F24F1/0014—Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
Abstract
The invention provides an air supply assembly, which comprises a first air supply part and a second air supply part, wherein the first air supply part comprises: a first inner peripheral wall; a first outer peripheral wall extending around the first inner peripheral wall; a front end wall extending inwardly along a front end edge of the first peripheral wall; a first ring cavity; a first air outlet; the second air supply part is arranged behind the first air supply part in a laminated manner and comprises: a second inner peripheral wall; a second peripheral wall; a second ring cavity; a second air outlet; and the front end edges of the second inner peripheral walls are projected in the first central hole along the extending direction of the hole axis of the first central hole. Because can make the rear of first centre bore produce the negative pressure when first air outlet sprays the air current forward, this negative pressure will produce forward thrust to the air current that jets in the second air supply portion that is located first air supply portion rear, and then the air-out effect of reinforcing second air supply portion.
Description
Technical Field
The present invention relates to an air delivery assembly, and more particularly, to an air supply assembly and an air conditioning indoor unit having the same.
Background
The air supply assembly is commonly used in household appliances such as hair dryers, fans, air conditioners and the like which need to be supplied with air, and generally comprises a power element (such as a fan) for generating air flow, a channel for conducting the air flow and an air outlet for guiding the air flow out, wherein external air is extracted and compressed by the power element to form the air flow, and the air flow is conveyed by the channel and is sprayed out from the air outlet. The existing air supply assembly generally has the defects of simple structure and poor air supply effect.
Disclosure of Invention
The invention aims to provide an air supply assembly capable of enhancing an air supply effect and an air conditioner indoor unit with the air supply assembly.
Particularly, the invention provides an air supply assembly, which comprises a first air supply part and a second air supply part, wherein,
the first air supply part includes:
a first inner circumferential wall having an annular shape defining a first central bore having a bore axis;
the first outer peripheral wall extends around the first inner peripheral wall, and the rear end edge of the first inner peripheral wall is bent outwards and connected with the rear end edge of the first outer peripheral wall;
the front end wall extends inwards along the front end edge of the first outer peripheral wall, the first inner peripheral wall, the first outer peripheral wall and the front end wall jointly define a first annular cavity, and the front end edge of the first inner peripheral wall and the front end wall jointly define a first air outlet for spraying air in the first annular cavity forwards;
the second air supply part is arranged behind the first air supply part in a laminated manner and comprises:
a second inner circumferential wall having an annular shape defining a second central bore having a bore axis;
the second outer circumferential wall extends around the second inner circumferential wall, the rear end edge of the second inner circumferential wall is bent outwards and is connected with the rear end edge of the second outer circumferential wall, the front end edge of the second outer circumferential wall is connected with the first inner circumferential wall, the second outer circumferential wall and the first inner circumferential wall jointly define a second annular cavity, and the front end edge of the second inner circumferential wall and the first inner circumferential wall jointly define a second air outlet for spraying air in the second annular cavity forwards;
and the front end edges of the second inner peripheral walls are projected in the first central hole along the extending direction of the hole axis of the first central hole.
Further, the air flow sprayed out of the second air outlet is parallel to the hole axis of the first central hole.
Further, along the circumference of second air outlet, the width of second air outlet is all equal.
Further, the inner edges of the front end wall are all projected into the first center hole along the extending direction of the hole axis of the first center hole.
Further, still include:
the flow guide part extends forwards along the inner edge of the front end wall and expands outwards to guide airflow sprayed out of the first air outlet and the second air outlet.
Further, still include:
the first air inlet is communicated with the first annular cavity;
the second air inlet is communicated with the second annular cavity;
the first air inlet and the second air inlet are arranged at the same circumferential positions of the first air supply part and the second air supply part.
Further, still include:
the first air inlet channel is communicated with the first air inlet;
the second air inlet channel is communicated with the second air inlet;
and the fan is configured to supply air to the first air inlet and the second air inlet through the first air inlet channel and the second air inlet channel.
Furthermore, two fans are arranged and supply air to the first air inlet channel and the second air inlet channel correspondingly.
The invention also provides an air conditioner indoor unit, which comprises the air supply assembly.
The third aspect of the present invention also provides an air conditioner indoor unit, including:
the air supply assembly with the two fans is arranged; one fan conveys airflow subjected to heat exchange by a heat exchange component of the indoor unit of the air conditioner, and the other fan conveys ambient airflow.
According to the air supply assembly, when the first air outlet sprays airflow forwards, negative pressure is generated behind the first central hole, and the negative pressure causes the airflow sprayed out of the second air supply part behind the first air supply part to be drawn forwards, so that the air outlet effect of the second air supply part is enhanced.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic perspective view of an air delivery assembly according to one embodiment of the present invention;
FIG. 2 is a cross-sectional schematic view of the air delivery assembly shown in FIG. 1;
FIG. 3 is a schematic front view of the blower assembly shown in FIG. 1;
FIG. 4 is a cross-sectional schematic view of an air delivery assembly according to another embodiment of the present invention;
fig. 5 is a schematic rear view of an indoor unit of an air conditioner according to an embodiment of the present invention;
fig. 6 is a perspective view of the indoor unit of the air conditioner shown in fig. 5;
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In the following description, the terms "front" and "rear" and the like indicating the directions refer to the air outlet direction, and when the air outlet direction changes, the direction indicated by "front" and "rear" also changes with the air outlet direction, the direction located downstream is the front, and the direction located upstream is the rear.
As shown in fig. 1-6, a preferred embodiment of the present invention is shown.
The air supply assembly 60 is used to generate and guide an air flow, and may be applied to products requiring an outward output air flow, such as a blower, an air conditioner, and a fan. In this embodiment, the blowing assembly 60 includes a first blowing part 10 and a second blowing part 20, wherein the first blowing part 10 includes a first inner peripheral wall 11, a first outer peripheral wall 12, and a front end wall 17. The first inner peripheral wall 11 has a ring shape, and may have a circular ring shape, the center of the first air supply part 10 defines a first center hole 16 having a hole axis X, and the first center hole 16 may be a kidney-shaped hole or a circular hole, and the hole axis X may be understood as a central axis of the first center hole 16 regardless of the shape of the first center hole 16. The first outer circumferential wall 12 extends around the first inner circumferential wall 11, and a rear end edge of the first outer circumferential wall 12 is curved outward (the "outer" referred to herein means a direction away from the hole axis X of the first center hole 16) and connected to a rear end edge of the first inner circumferential wall 11. The front end wall 17 extends along a front end edge of the first outer circumferential wall 12 in a direction toward the hole axis X near the first center hole 16, and the front end edge of the first inner circumferential wall 11 and a distal end of the front end wall 17 (the distal end referred to herein means an inner end edge of the front end wall 17 near the hole axis X of the first center hole 16, which is annular) together define the aforementioned first air outlet 15 therebetween. The first annular cavity 13 is defined by an inner space surrounded by the first inner peripheral wall 11, the first outer peripheral wall 12 and the front end wall 17.
The second blowing unit 20 is stacked behind the first blowing unit 10, and includes a second inner peripheral wall 21 and a second outer peripheral wall 22. The second inner circumferential wall 21 is annular and defines a second central hole 26 having a hole axis Y, the second outer circumferential wall 22 extends around the second inner circumferential wall 21, a rear end edge of the second outer circumferential wall 22 is bent outward and connected to a rear end edge of the second inner circumferential wall 21, a front end edge of the second outer circumferential wall 22 is connected to the first inner circumferential wall 11, specifically, the second inner circumferential wall 11 may be connected to a rear end edge of the first inner circumferential wall 11, the second air outlet 25 is defined between the front end edge of the second inner circumferential wall 21 and the first inner circumferential wall 11, and the second inner circumferential wall 21, the second outer circumferential wall 22 and the first inner circumferential wall 11 define a second annular cavity 23.
The first air outlet 15 and the second air outlet 25 are respectively configured to spray air flow forward along the hole axis X of the first central hole 16, and the sprayed air flow may be parallel to the hole axis X of the first central hole 16 or form a certain included angle with the hole axis X of the first central hole 16. In the process of ejecting the air flow, the first air outlet 15 and the second air outlet 25 form a negative pressure behind the second central hole 26, and the negative pressure causes the ambient air behind the second air supply part 20 to be brought into the second central hole 26, flow forward along the hole axis Y of the second central hole 26, pass through the first central hole 16, and finally be ejected together with the air flow ejected from the first air outlet 15. The air flow sprayed out of the air supply assembly 60 is mixed with the ambient air flow, so the air supply effect is better.
Especially, when the air supply assembly 60 is used in an air conditioner, the heat exchange air (cold air during cooling and hot air during heating) ejected from the first air outlet 15 and the second air outlet 25 can be mixed with indoor ambient air and ejected, so that on one hand, ambient air flow can be better guided, normal temperature air in the environment can be mixed with air after heat exchange, and the heat exchange efficiency of the normal temperature air and the heat exchange air in the environment is accelerated; on the other hand, the cool air jetted out of the first air outlet 15 mixes with the ambient air flow, and the temperature is moderate, so that when the temperature of the cool air jetted out of the first air outlet 15 is too low and blows directly to the user, the user can be effectively prevented from catching a cold.
When the first air outlet 15 sprays air flow forwards, negative pressure is generated behind the first central hole 16, and the negative pressure generates forward thrust on the air flow sprayed out of the second air supply part 20 behind the first air supply part 10, so that the air supply effect of the second air supply part 20 is enhanced. Therefore, compared with the conventional structure with a single air outlet, the structure with two air outlets can increase the air supply distance of the whole air supply assembly 60 and increase the air supply amount of the whole air supply assembly 60.
In an embodiment, as shown in fig. 3, along the extending direction of the hole axis X of the first central hole 16, the front end edge of the second inner peripheral wall 21 is projected into the first central hole 16, that is, when viewed from the front to the back along the hole axis X of the first central hole 16, the front end edge of the second inner peripheral wall 21 is completely visible and is not blocked by the first inner peripheral wall 11 of the first air supplying part 10, so that the air flow ejected from the second air outlet 25 can more smoothly pass through the first central hole 16, thereby enhancing the overall air outlet effect of the air supplying assembly 60.
Preferably, the airflow ejected from the second air outlet 25 is parallel to the direction of the hole axis Y of the second central hole 26, and specifically, the air flow ejected from the second annular cavity 23 is guided by the front edge of the first inner circumferential wall 11 and ejected along the extending direction of the hole axis Y of the second central hole 26, in which the front edge portion of the first inner circumferential wall 11 extends in the direction parallel to the hole axis Y of the second central hole 26. When the air outlet in the second air outlet 25 is ejected in parallel to the hole axis Y of the second central hole 26, the ejected air flow can be better guided by the air flow ejected from the first air outlet 15, so as to enhance the overall air outlet effect of the air supply assembly 60. In one embodiment, the hole axis X of the first central hole 16 may be coincident with the hole axis Y of the second central hole 26, so that the air flow ejected from the second air outlet 25 is ejected forward along the hole axis X parallel to the first central hole 16.
In one embodiment, the widths of the second outlets 25 are equal along the circumferential direction of the second outlets 25, so that the fluency of the air flowing out along the circumferential direction of the second outlets 25 becomes uniform, and the turbulence degree of the air flow ejected from the second outlets 25 is reduced.
In one embodiment, the inner edges of the front end wall 17 are all projected into the first central hole 16 along the extending direction of the hole axis X of the first central hole 16, that is, the front end edge of the first inner peripheral wall 11 is completely invisible when viewed from the front to the back along the hole axis X of the first central hole 16, so that the first inner peripheral wall 11 gives the second air outlet 25 a space to the maximum extent, and the air outlet of the second air outlet 25 is completely not blocked by the second inner peripheral wall 21.
In order to make the diffusion area of the air flow ejected from the first air outlet 15 and the second air outlet 25 larger, in an embodiment, the front end of the first air blowing part 10 is provided with a flow guiding part 30, the flow guiding part 30 extends forward along the inner edge of the front end wall 17, and the flow guiding part 30 expands outward while extending forward, that is, the diameter of the flow guiding part 30 is larger at a position farther from the front end wall 17. When the airflow ejected from the first outlet 15 and the second outlet 25 flows through the flow guiding portion 30, the airflow attached to the inner surface of the flow guiding portion 30 flows forward, and the airflow guided out by the flow guiding portion 30 spreads in a substantially conical shape due to the outward expansion of the flow guiding portion 30, and the spreading area of the airflow is larger as the airflow is farther away from the flow guiding portion 30. In order to further increase the diffusion area of the airflow, in one embodiment, the portion of the flow guide portion 30 farther from the front end wall 17 may be configured such that the aperture increases at a faster rate. .
In an embodiment, the first air inlet 14 and the second air inlet 24 are opened at the same circumferential position of the first air supply part 10 and the second air supply part 20, respectively, so that the initial positions of the air flows sprayed into the first annular cavity 13 and the second annular cavity 23 are the same, and the directions of the air flows sprayed into the first annular cavity 13 and the second annular cavity 23 can be better kept the same. When the initial positions and directions of the airflows sprayed into the first annular cavity 13 and the second annular cavity 23 are consistent, the internal airflow change laws of the first annular cavity 13 and the second annular cavity 23 are the same, so that the airflows sprayed out of the first air outlet 15 and the second air outlet 25 cannot move along the circumferential direction of the first air outlet 15 and the second air outlet 25 due to mutual interference, and the overall air outlet effect of the first air outlet 15 and the second air outlet 25 is enhanced.
Specifically, the air supply assembly 60 further includes an air supply duct 40 and a fan 50 (the fan 50 may be a centrifugal fan or an axial flow fan), and the fan 50 generates an air flow and then guides the air flow to the first air inlet 14 and the second air inlet 24 through the air supply duct 40, that is, the air flow guided into the first air inlet 14 and the second air inlet 24 is provided by one fan 50, so that the manufacturing cost and the use cost can be reduced. Further, in order to avoid the air flow at the first air inlet 14 and the second air inlet 24 from moving mutually to reduce the air outlet effect, a partition plate 43 may be disposed in the air supply duct 40, and the partition plate 43 is used to isolate the first air inlet 14 and the second air inlet 24, so that the port for supplying air to the first air inlet 14 and the second air inlet 24 is as far away from the first annular cavity 13 and the second annular cavity 23 as possible.
Compared with the structure with a single air outlet, the structure with two air outlets has the air outlet effect that is affected by the isolation degree of the first air inlet 14 and the second air inlet 24. In order to further improve the air outlet effect, in an embodiment, the air supply assembly 60 includes two fans 50, the two fans 50 supply air to the first air inlet 14 and the second air inlet 24 in a one-to-one correspondence manner, and after the air flow conveyed by the fan 50 communicated with the first air inlet 14 is sprayed out from the first air outlet 15, the air flow conveyed by the fan 50 communicated with the second air inlet 24 to the second air outlet 25 is guided, so as to enhance the overall air outlet effect of the first air outlet 15 and the second air outlet 25. In particular, when there are two fans 50, the air supply assembly 60 further includes a first air inlet channel 41 and a second air inlet channel 42, the first air inlet channel 41 is communicated with the first air inlet 14, the second air inlet channel 42 is communicated with the second air inlet 24, and the two fans 50 supply air into the first air inlet channel 41 and the second air inlet channel 42 respectively. Specifically, the first air intake duct 41 and the second air intake duct 42 may be partitioned by the above-described air supply duct 40 with a partition plate 43.
The second aspect of the present invention further provides an air conditioning indoor unit 70, where the air conditioning indoor unit 70 includes the air supply assembly 60 mentioned in any of the above embodiments. The indoor air conditioner unit 70 has an air outlet 71, and the air flow ejected from the air supply unit 60 is ejected out of the indoor air conditioner unit 70 through the air outlet 71.
The third aspect of the present invention further provides an air conditioning indoor unit 70, where the air conditioning indoor unit 70 includes the air supply assembly 60, where the two fans 50 respectively and correspondingly spray air flows into the first air outlet 15 and the second air outlet 25. And one of the fans 50 delivers an air flow after heat exchange by the heat exchange part of the indoor air-conditioning unit 70, and the other fan 50 delivers an ambient air flow (i.e., the fan 50 extracts ambient air outside the indoor air-conditioning unit 70 to generate an air flow which does not undergo heat exchange by the heat exchange part of the indoor air-conditioning unit 70). Preferably, the fan 50 communicated with the first air inlet 14 delivers ambient air flow, and the fan 50 communicated with the second air inlet 24 delivers air flow after heat exchange, so that when the temperature of ambient air is reduced or increased (reduced when cooling or increased when heating) to a temperature very close to the set temperature, the ambient air can be extracted by the fan 50 communicated with the first air inlet 14 and ejected by the first air outlet 15, the air flow ejected by the first air outlet 15 guides the heat exchange air flow ejected by the second air outlet 25, so that the power of the fan 50 communicated with the second air inlet 24 can be reduced, and the power cost is saved.
In particular, in some modes of the indoor air conditioning unit 70, only the fan 50 for extracting the ambient air flow can be operated, so that the indoor air conditioning unit 70 has the functions of only blowing and not cooling, which are similar to an electric fan, and the functions can be turned on under the condition of low external temperature, thereby saving a large amount of electricity charges.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. An air supply assembly comprises a first air supply part and a second air supply part, wherein,
the first air supply part includes:
a first inner circumferential wall having an annular shape defining a first central bore having a bore axis;
a first outer peripheral wall extending around the first inner peripheral wall, a rear end edge of the first inner peripheral wall being curved outwardly and connected to a rear end edge of the first outer peripheral wall;
a front end wall extending inwardly along a front end edge of the first outer peripheral wall, the first inner peripheral wall, first outer peripheral wall and the front end wall collectively defining a first annular cavity, the front end edge of the first inner peripheral wall and the front end wall collectively defining a first air outlet for ejecting air forwardly from the first annular cavity;
the second air supply part is arranged behind the first air supply part in a laminated mode and comprises:
a second inner circumferential wall having an annular shape defining a second central bore having a bore axis;
the second outer circumferential wall extends around the second inner circumferential wall, the rear end edge of the second inner circumferential wall is bent outwards and is connected with the rear end edge of the second outer circumferential wall, the front end edge of the second outer circumferential wall is connected with the first inner circumferential wall, the second outer circumferential wall and the first inner circumferential wall jointly define a second annular cavity, and the front end edge of the second inner circumferential wall and the first inner circumferential wall jointly define a second air outlet for spraying air in the second annular cavity forwards;
and the front end edge of the second inner peripheral wall is projected in the first central hole along the extension direction of the hole axis of the first central hole.
2. The air supply assembly of claim 1,
and the air flow sprayed out of the second air outlet is parallel to the hole axis of the first central hole.
3. The air supply assembly of claim 1,
and the widths of the second air outlets are equal along the circumferential direction of the second air outlets.
4. The air supply assembly of claim 1,
the inner edges of the front end wall are all projected into the first central hole along the extending direction of the hole axis of the first central hole.
5. The air supply assembly of claim 1, further comprising:
and the flow guide part extends forwards along the inner edge of the front end wall and expands outwards to guide the airflow sprayed out from the first air outlet and the second air outlet.
6. The air supply assembly of claim 1, further comprising:
the first air inlet is communicated with the first annular cavity;
the second air inlet is communicated with the second annular cavity;
the first air inlet and the second air inlet are arranged at the same circumferential positions of the first air supply part and the second air supply part.
7. The air supply assembly of claim 6, further comprising:
the first air inlet channel is communicated with the first air inlet;
the second air inlet channel is communicated with the second air inlet;
and the fan is configured to supply air to the first air inlet and the second air inlet through the first air inlet channel and the second air inlet channel.
8. The air supply assembly of claim 7,
the fan air supply system is provided with two fans which supply air to the first air inlet channel and the second air inlet channel correspondingly.
9. An indoor unit of an air conditioner, comprising:
an air supply assembly as claimed in any one of claims 1 to 8.
10. An indoor unit of an air conditioner, comprising:
the air supply assembly of claim 8;
one of the fans conveys airflow subjected to heat exchange through a heat exchange component of the indoor unit of the air conditioner, and the other fan conveys ambient airflow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810778839.6A CN110793104B (en) | 2018-07-16 | 2018-07-16 | Air supply assembly and air conditioner indoor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810778839.6A CN110793104B (en) | 2018-07-16 | 2018-07-16 | Air supply assembly and air conditioner indoor unit |
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| CN110793104A CN110793104A (en) | 2020-02-14 |
| CN110793104B true CN110793104B (en) | 2021-05-25 |
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| CN104456888A (en) * | 2013-09-18 | 2015-03-25 | 海尔集团公司 | Air-conditioner air supplier and floor air conditioner |
| DE202016002566U1 (en) * | 2016-04-15 | 2016-06-23 | Matthias Kluth | Ring-shaped exhaust air inlet |
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2018
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| KR100767022B1 (en) * | 2007-08-29 | 2007-10-15 | 삼보설비엔지니어링(주) | Air conditioning diffuser |
| CN103453640A (en) * | 2013-06-03 | 2013-12-18 | 海尔集团公司 | Air supply method implemented by aid of air supply device of air conditioner |
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| DE202016002566U1 (en) * | 2016-04-15 | 2016-06-23 | Matthias Kluth | Ring-shaped exhaust air inlet |
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Effective date of registration: 20210426 Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Applicant after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Applicant after: Haier Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Applicant before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. |
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