CN215260105U - Indoor unit of air conditioner - Google Patents
Indoor unit of air conditioner Download PDFInfo
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- CN215260105U CN215260105U CN202121776907.9U CN202121776907U CN215260105U CN 215260105 U CN215260105 U CN 215260105U CN 202121776907 U CN202121776907 U CN 202121776907U CN 215260105 U CN215260105 U CN 215260105U
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- 238000005192 partition Methods 0.000 claims abstract description 34
- 238000004378 air conditioning Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 230000002265 prevention Effects 0.000 claims description 6
- 230000009467 reduction Effects 0.000 abstract description 6
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000002627 tracheal intubation Methods 0.000 description 2
- 241001417516 Haemulidae Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model provides an air-conditioning indoor unit, which comprises a casing, a fresh air duct which is formed in the casing and is communicated with the indoor space and one end of which is connected with a fresh air pipe, and a backflow preventing unit which is connected with the fresh air pipe; the backflow preventing unit comprises an outer barrel and an inner inserting tube, wherein the opposite two ends of the outer barrel are respectively provided with a first end cover and a second end cover; the outer barrel, the first end cover and the second end cover jointly define a cavity; the first end cover is provided with a first air inlet, and the second end cover is provided with a second air inlet; two partition plates are arranged in the cavity at intervals, and the cavity is divided into a first air cavity, a second air cavity and a third air cavity which are distributed from the first end cover to the second end cover; the first air cavity is communicated with the second air cavity, and the second air cavity is communicated with the third air cavity; the inner inserting pipe penetrates through the first end cover and the partition plate adjacent to the first end cover and extends into the second air cavity; the utility model discloses a setting can effectively reduce the new trend wind speed and flow backward in order to avoid the new trend to the noise reduction.
Description
Technical Field
The utility model belongs to the technical field of the machine in the air conditioning, especially, relate to a machine in air conditioning.
Background
At present, all manufacturers popularize fresh air conditioner indoor units, but the quality of the fresh air conditioner indoor units on the market is also different, and the user experience is also different. Especially, when an individual fresh air conditioner indoor unit is not used, because the air outside the room can enter the room through the fresh air pipe, when the outdoor air has larger air flow, the outdoor air can enter the room through the fresh air pipe, the fresh air flowing phenomenon is generated, and along with guru and grunt noises, the poor user experience is caused.
In view of this, the present invention is proposed.
Disclosure of Invention
The utility model discloses to foretell technical problem, provide an indoor unit of air conditioner.
In order to achieve the above object, the utility model discloses a technical scheme be:
machine in air conditioning, it includes:
the indoor air inlet and the indoor air outlet are arranged on the shell;
the main air duct is formed inside the shell and communicated with the indoor air inlet and the indoor air outlet; an evaporator is arranged in the main air duct;
the fresh air duct is formed in the shell and is communicated with the indoor space; the end part of the fresh air duct is provided with a fresh air pipe communicated with the outside;
the backflow preventing unit is arranged at one end, far away from the shell, of the fresh air pipe; the backflow prevention unit includes:
the outer cylinder is provided with a first end cover and a second end cover at two opposite ends respectively; the outer barrel, the first end cover and the second end cover jointly define a cavity; the first end cover is provided with a first air inlet, and the second end cover is provided with a second air inlet;
the two clapboards are arranged in the cavity at intervals and divide the cavity into a first air cavity, a second air cavity and a third air cavity which are distributed from the first end cover to the second end cover; the first air cavity is communicated with the second air cavity through a third air inlet, and the second air cavity is communicated with the third air cavity through a fourth air inlet;
one end of the inner inserting pipe is connected with the fresh air pipe, and the other end of the inner inserting pipe penetrates through the first end cover and the partition board adjacent to the first end cover and extends into the second air cavity; the inner inserting pipe is communicated with the second air cavity.
As an implementation manner, the first air inlet and the third air inlet are arranged in a relative staggered manner along the circumferential direction of the inner inserting pipe.
As an implementation manner, the third air inlet and the fourth air inlet are arranged in a relative staggered manner along the circumferential direction of the inner inserting pipe.
As an implementation mode, a first water flow hole arranged at an interval with the third air inlet is arranged on the partition board close to the first end cover; the size of the first water flowing hole is smaller than that of the third air inlet.
As an implementable manner, a second water flow hole arranged at an interval with the fourth air inlet is arranged on the partition board close to the second end cover; the size of the second water flowing hole is smaller than that of the fourth air inlet.
As an implementation manner, the first water flowing hole and the second water flowing hole are both arranged along the outer cylinder wall.
As a practical way, the second end cap is in the shape of a hemispherical shell.
As a practical way, the first end cap is in the shape of a frustum shell.
As one practical matter, the inner cannula is at least partially located within the second wind cavity.
As an implementation manner, the end of the inner intubation, which is communicated with the second wind cavity, is provided with a grid.
Compared with the prior art, the utility model discloses an advantage lies in with positive effect:
the utility model provides an air-conditioning indoor unit, which comprises a casing, a fresh air duct which is formed in the casing and is communicated with the indoor space and one end of which is connected with a fresh air pipe, and a backflow preventing unit which is connected with the fresh air pipe; the backflow preventing unit comprises an outer barrel and an inner inserting tube, wherein the opposite two ends of the outer barrel are respectively provided with a first end cover and a second end cover; the outer barrel, the first end cover and the second end cover jointly define a cavity; the first end cover is provided with a first air inlet, and the second end cover is provided with a second air inlet; two partition plates are arranged in the cavity at intervals, and the cavity is divided into a first air cavity, a second air cavity and a third air cavity which are distributed from the first end cover to the second end cover; the first air cavity is communicated with the second air cavity, and the second air cavity is communicated with the third air cavity; the inner inserting pipe penetrates through the first end cover and the partition plate adjacent to the first end cover and extends into the second air cavity; the utility model discloses a setting can effectively reduce the new trend wind speed and flow backward in order to avoid the new trend to the noise reduction.
Drawings
Fig. 1 is a schematic view of the whole structure of the indoor unit of the air conditioner of the present invention;
FIG. 2 is a schematic view of the whole structure of the anti-backflow unit of the indoor unit of the air conditioner of the present invention;
FIG. 3 is a schematic structural view of another view angle of the anti-backflow unit of the indoor unit of the air conditioner of the present invention;
FIG. 4 is a cross-sectional view of the anti-backflow unit of the indoor unit of the air conditioner of the present invention;
fig. 5 is a cross-sectional view of another view angle of the anti-backflow unit of the indoor unit of the air conditioner of the present invention;
fig. 6 is a schematic structural view of a first partition plate of the indoor unit of an air conditioner of the present invention;
fig. 7 is a schematic structural view of a second partition plate of the indoor unit of an air conditioner of the present invention;
fig. 8 is a schematic structural view of another embodiment of the anti-backflow unit of the indoor unit of the air conditioner of the present invention.
In the above figures: an indoor air-conditioning unit 100; a housing 10; an indoor air inlet 11; an indoor air outlet 12; a fresh air duct 13; a backflow prevention unit 200; an outer cylinder 1; an inner intubation tube 2; a first end cap 3; the first air intake 31; a second end cap 4; the second air intake 41; a first air chamber 7; a second air chamber 8; a third air chamber 9; a first partition plate 5; a third air inlet 51; a first water flow hole 52; a second partition plate 6; a fourth air intake 61; a second flow hole 62; and a fifth intake port 71.
Detailed Description
The present invention is further described below in conjunction with specific embodiments so that those skilled in the art may better understand the present invention and can implement the present invention, but the scope of the present invention is not limited to the scope described in the detailed description. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
It should be noted that the description relating to "first", "second", etc. in the present invention is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
An indoor unit 100 of an air conditioner, as shown in fig. 1 to 7, includes a casing 10 having an indoor air inlet 11 and an indoor air outlet 12. A main air duct is formed in the casing 10 and is communicated with an indoor air inlet 11 and an indoor air outlet 12; and an evaporator and a main fan are arranged in the main air duct. In addition, a fresh air duct communicated with the indoor is formed in the casing 10; and a fresh air pipe 13 communicated with the outside is arranged at the rear end of the fresh air duct. In this embodiment, the fresh air duct and the main air duct are arranged in parallel; a fresh air fan is arranged in the fresh air duct. It should be noted that the position of the fresh air fan is not limited to the above arrangement, and the fresh air fan may also be arranged in the fresh air duct 13; or the fresh air duct is communicated with the main air duct, and the main fan in the main air duct is used as the fresh air fan at the same time.
The fresh air pipe 13 is provided with a backflow prevention unit 200 at an end away from the casing 10. As shown in fig. 2 to 7, the backflow prevention unit 200 includes an outer cylinder 1, a partition plate, and an inner cannula 2. Specifically, the outer cylinder 1 comprises two oppositely arranged ports, and a first end cover 3 and a second end cover 4 are respectively arranged at the two oppositely arranged ports; that is, the first end cap 3 is disposed opposite to the second end cap 4, and the outer cylinder 1, the first end cap 3 and the second end cap 4 together define a cavity. The first end cap 3 is provided with a first air inlet 31, and the second end cap 4 is provided with a second air inlet 41. In this embodiment, the first end cap 3 is provided with a plurality of first air inlets 31, and the second end cap 4 is provided with a plurality of second air inlets 41. In this embodiment, the first air inlet 31 and the second air inlet 41 may be configured to be circular, square, etc., and the shape thereof is not limited herein. And the first intake vent 31 and the second intake vent are used for ventilation on the one hand and for flowing water on the other hand.
Two partition plates arranged at intervals are arranged in the cavity; the cavity is divided into a first air cavity 7, a second air cavity 8 and a third air cavity 9 which are distributed along the direction from the first end cover 3 to the second end cover 4 by the two clapboards. The first air cavity 7 is communicated with the second air cavity 8 through a third air inlet 51, and the second air cavity 8 is communicated with the third air cavity 9 through a fourth air inlet 61. In this embodiment, a plurality of third air inlets 51 and fourth air inlets 61 are provided. As another practical way, as shown in fig. 8, a plurality of fifth air inlets 71 are disposed on the side wall of the first air chamber 7 to effectively increase the fresh air intake.
The backflow prevention unit 200 comprises an inner insertion tube 2, one end of the inner insertion tube 2 is connected with the fresh air pipe 13, and the other end of the inner insertion tube 2 penetrates through the first end cover 3 and the partition plate adjacent to the first end cover 3 and extends into the second air cavity 8, so that the inner insertion tube 2 is communicated with the second air cavity 8. In this embodiment, the inner cannula 2 is at least partially located within the second wind chamber 8. And the end part of the inner inserting pipe 2 communicated with the second air cavity 8 is provided with a grid. The inner tube 2 and the fresh air duct 13 are connected by a screw connection, a snap connection, or the like.
In the above, the partition adjacent to the first end cap 3 is denoted as a first partition 5, and the partition adjacent to the second end cap 4 is denoted as a second partition 6; namely, the first end cap 3, the first partition plate 5, the second partition plate 6 and the second end cap 4 are distributed in sequence.
In this embodiment, the first air inlet 31 and the third air inlet 51 are disposed in a staggered manner along the circumferential direction of the inner insert tube 2(ii) a So that the fresh air entering the first air cavity 7 can fully collide with the first partition plate 5, and the purposes of speed reduction and noise reduction are achieved. In addition, the third air inlet 51 and the fourth air inlet 61 are arranged in a relative staggered manner; so that the fresh air entering the third air cavity 9 can fully collide with the second clapboard 6, and the purposes of speed reduction and noise reduction are realized. In the above, the plurality of first air inlets 31 are distributed on the first end cap 3 along the circumferential direction of the inner insert tube 2, and the plurality of second air inlets 41 are distributed on the second end cap 4 along the circumferential direction of the inner insert tube 2. As an implementation manner, the aperture of the second air inlet 41 is denoted as D2，D2∈[0.1，2]The unit: cm.
In addition, the second end cap 4 is in a hemispherical shell shape; the first end cover 3 is in a frustum shell shape. Above prevent flowing backward unit 200 and set up both ends and advance the new trend simultaneously, and second end cover 4 is the hemisphere shell form, and first end cover 3 is frustum shell form, effectively increases prevent flowing backward unit 200's air inlet area to when guaranteeing that indoor new trend is intake, have sufficient fresh air volume, improve new trend efficiency.
Specifically, when outdoor fresh air enters the first air cavity 7 through the first air inlet 31, the fresh air can rapidly expand after entering the first air cavity 7 at a high air speed due to the small size of the first air inlet 31, and the air speed of the fresh air is effectively weakened. Meanwhile, fresh air enters the first air cavity 7 through the first air inlet 31, moves along a straight line with the first partition plate 5 and collides with the first partition plate 5; when the fresh air collides with the first partition plate 5, the energy of a part of the fresh air is counteracted, and a part of sound is eliminated; most of the energy of the fresh air can be consumed through repeated collision of the fresh air and the first partition plate 5, the air speed of the fresh air is effectively reduced, and the fresh air almost has no speed; then, the fresh air with low wind speed enters the second air cavity 8 through the third air inlet 51; because the third air inlet 51 is small in size, the fresh air with low wind speed enters the second air cavity 8 through the third air inlet 51 and then rapidly expands again, the energy is weakened again, and the wind speed of the fresh air is reduced again.
On the other hand, when outdoor fresh air enters the third air cavity 9 through the second air inlet 41, the fresh air can rapidly expand after entering the third air cavity 9 at a high air speed due to the small size of the second air inlet 41, and the air speed of the fresh air is effectively weakened. Meanwhile, fresh air enters the third air cavity 9 through the second air inlet 41 and then moves along a straight line to the second partition plate 6 and collides with the second partition plate 6; when the fresh air collides with the second partition plate 6, the energy of a part of the fresh air is offset, and a part of sound is eliminated; most of energy of the fresh air can be consumed through repeated collision of the fresh air and the second partition plate 6, the air speed of the fresh air is effectively reduced, and the fresh air almost has no speed; then, the fresh air with low wind speed enters the second air cavity 8 through the fourth air inlet 61; because the fourth air inlet 61 is small in size, the fresh air with low air speed rapidly expands again after entering the second air cavity 8 through the fourth air inlet 61, the energy is weakened again, and the air speed of the fresh air is reduced again.
When non-fresh air is supplied (a fresh air fan stops working), because indoor airflow is relatively stable, the pressure in a fresh air pipe 13 communicated with the indoor space is high, pressure difference exists in a contact area between the second air cavity 8 and the fresh air pipe 13, the indoor pressure is higher than the pressure in the second air cavity 8, and the indoor air is compressed to the second air cavity 8 under high indoor pressure; thereby effectively avoiding the occurrence of backward flow. The greater the pressure difference between the contact area of the second air chamber 8 and the fresh air duct 13, the stronger the tendency for room air to be forced into the second air chamber 8. The setting of the anti-backflow unit 200 of the above embodiment can effectively reduce the wind speed of the fresh air to avoid the backflow of the fresh air, and reduce noise.
When fresh air is supplied, under the action of a fresh air fan, the indoor air pressure is smaller than the air pressure in the second air cavity 8, and fresh air entering the second air cavity 8 through the backflow preventing unit sequentially passes through the inner insertion tube 2, the fresh air pipe 13 and the fresh air duct to enter the indoor space, so that the indoor space is updated.
Furthermore, a first water flow hole 52 arranged at an interval with the third air inlet 51 is arranged on the partition board close to the first end cover 3; the first water flow hole 52 is smaller in size than the third air inlet 51. As a practical manner, the first flow hole 52 corresponds to the position of the first air inlet 31 along the circumferential direction of the inner cannula 2.
A second water flowing hole 62 arranged at an interval with the fourth air inlet 61 is arranged on the partition board close to the second end cover 4; the size of the second water flowing hole 62 is smaller than that of the fourth air inlet 61. The first water flow hole 52 and the second water flow hole 62 are both disposed along the wall of the outer cylinder 1, and the first water flow hole 52 and the second water flow hole 62 are both disposed in a fan-ring shape.
For example, when rainwater enters the first air chamber 7 through the first air inlet 31, the rainwater flows into the second air chamber 8 through the first water flowing hole 52 corresponding to the position of the first air inlet 31, then enters the third air chamber 9 through the second water flowing hole 62, and finally flows out of the anti-backflow unit 200 through the second air inlet 41.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.
Claims (10)
1. Machine in air conditioning, its characterized in that it includes:
the indoor air inlet and the indoor air outlet are arranged on the shell;
the main air duct is formed inside the shell and communicated with the indoor air inlet and the indoor air outlet; an evaporator is arranged in the main air duct;
the fresh air duct is formed in the shell and is communicated with the indoor space; the end part of the fresh air duct is provided with a fresh air pipe communicated with the outside;
the backflow preventing unit is arranged at one end, far away from the shell, of the fresh air pipe; the backflow prevention unit includes:
the outer cylinder is provided with a first end cover and a second end cover at two opposite ends respectively; the outer barrel, the first end cover and the second end cover jointly define a cavity; the first end cover is provided with a first air inlet, and the second end cover is provided with a second air inlet;
the two clapboards are arranged in the cavity at intervals and divide the cavity into a first air cavity, a second air cavity and a third air cavity which are distributed from the first end cover to the second end cover; the first air cavity is communicated with the second air cavity through a third air inlet, and the second air cavity is communicated with the third air cavity through a fourth air inlet;
one end of the inner inserting pipe is connected with the fresh air pipe, and the other end of the inner inserting pipe penetrates through the first end cover and the partition board adjacent to the first end cover and extends into the second air cavity; the inner inserting pipe is communicated with the second air cavity.
2. An indoor unit of an air conditioner according to claim 1, wherein: and the first air inlet and the third air inlet are arranged in a relative staggered manner along the circumferential direction of the inner inserting pipe.
3. An indoor unit of an air conditioner according to claim 2, wherein: and the third air inlet and the fourth air inlet are arranged in a staggered mode relatively along the circumferential direction of the inner inserting pipe.
4. An indoor unit of an air conditioner according to any one of claims 1 to 3, wherein: a first water flow hole arranged at an interval with the third air inlet is formed in the partition plate close to the first end cover; the size of the first water flowing hole is smaller than that of the third air inlet.
5. An indoor unit of an air conditioner according to claim 4, wherein: a second water flowing hole arranged at an interval with the fourth air inlet is formed in the partition plate close to the second end cover; the size of the second water flowing hole is smaller than that of the fourth air inlet.
6. An indoor unit of an air conditioner according to claim 5, wherein: the first water flowing hole and the second water flowing hole are arranged along the outer cylinder wall.
7. An indoor unit of an air conditioner according to any one of claims 1 to 3, wherein: the second end cover is in a hemispherical shell shape.
8. An indoor unit of an air conditioner according to claim 7, wherein: the first end cover is in a frustum shell shape.
9. An indoor unit of an air conditioner according to any one of claims 1 to 3, wherein: the inner cannula is at least partially located within the second wind cavity.
10. An indoor unit of an air conditioner according to claim 9, wherein: and a grid is arranged at the end part of the inner inserting pipe communicated with the second air cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121776907.9U CN215260105U (en) | 2021-07-30 | 2021-07-30 | Indoor unit of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121776907.9U CN215260105U (en) | 2021-07-30 | 2021-07-30 | Indoor unit of air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215260105U true CN215260105U (en) | 2021-12-21 |
Family
ID=79496235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121776907.9U Active CN215260105U (en) | 2021-07-30 | 2021-07-30 | Indoor unit of air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215260105U (en) |
-
2021
- 2021-07-30 CN CN202121776907.9U patent/CN215260105U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No.1 Haixin Road, Nancun Town, Pingdu City, Qingdao City, Shandong Province Patentee after: Hisense Air Conditioning Co.,Ltd. Country or region after: China Address before: No. 151, Zhuzhou Road, Laoshan District, Qingdao, Shandong Patentee before: HISENSE (SHANDONG) AIR-CONDITIONING Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |