CN113701258A - Air grid and air conditioner - Google Patents
Air grid and air conditioner Download PDFInfo
- Publication number
- CN113701258A CN113701258A CN202110853446.9A CN202110853446A CN113701258A CN 113701258 A CN113701258 A CN 113701258A CN 202110853446 A CN202110853446 A CN 202110853446A CN 113701258 A CN113701258 A CN 113701258A
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- Prior art keywords
- air
- grid
- heat exchanger
- wind
- grid body
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- 230000007246 mechanism Effects 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Classifications
-
- 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
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/46—Component arrangements in separate outdoor units
- F24F1/48—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow
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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
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/082—Grilles, registers or guards
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Flow Control Members (AREA)
Abstract
The application provides an air grid and an air conditioner. The air grid comprises a grid body and air guide plates arranged on the grid body, wherein the air guide distance of the air guide plates positioned at the upper part of the grid body is larger than the air guide distance of the air guide plates positioned at the lower part of the grid body. By applying the technical scheme of the invention, the air guide space of the air guide plates positioned at the upper part of the grid body is larger than the air guide space of the air guide plates positioned at the lower part of the grid body, so that the resistance at the lower part of the air grid is larger than the resistance at the upper part of the air grid, the air speed at the lower part of the air grid is improved, the air speed at the lower part of the heat exchanger is improved, the uniformity of the air speed distribution of the heat exchanger is improved, the heat exchange performance of the heat exchanger is improved, and the problem of poor overall performance of the heat exchanger is solved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air grid and an air conditioner.
Background
The air conditioner outdoor unit with the upper air outlet structure generally has the condition of uneven air volume distribution of the heat exchanger due to the structural limitation of the air conditioner outdoor unit. The head-on wind speed of the upper part of the heat exchanger is 2-4 times of that of the lower part, and the problems of large superheat degree of a topmost flow path and small superheat degree of a bottommost flow path occur under the evaporation working condition.
In the prior art, the superheat difference between the upper part and the bottom part can be balanced by adjusting the flow path design and the capillary tube length, but the pressure loss of the bottom flow path is increased to a certain extent, and the overall performance of the heat exchanger is not exerted to the maximum.
Disclosure of Invention
The embodiment of the invention provides an air grid and an air conditioner, and aims to solve the technical problem that the heat exchange performance of the air conditioner is affected due to the fact that the air inlet speed of the air conditioner is not uniform in the prior art.
The embodiment of the application provides an air grid, which comprises a grid body and air deflectors installed on the grid body, wherein the air deflection interval of the air deflectors positioned on the upper portion of the grid body is larger than the air deflection interval of the air deflectors positioned on the lower portion of the grid body.
In one embodiment, the wind guide angle of the wind guide plate positioned at the upper part of the grid body is smaller than that of the wind guide plate positioned at the lower part of the grid body, and the wind guide angle is an included angle between the wind guide plate and the vertical downward direction.
In one embodiment, the air guide pitch of the air guide plate decreases from the upper end of the grid body to the lower end of the grid body.
In one embodiment, the wind guide angle of the wind guide plate increases from the upper end of the grid body to the lower end of the grid body.
In one embodiment, the air guide angle is 80 ° to 150 °.
In one embodiment, the air guide pitch is 1cm to 3 cm.
In one embodiment, the air deflection panel comprises:
the first air guide plate group is arranged on the upper part of the grid body;
the second air guide plate group is arranged on the grid body and is not positioned below the first air guide plate group;
the air guide distance of the first air guide plate group is larger than that of the second air guide plate group;
the air guide angle of the first air guide plate group is smaller than that of the second air guide plate group.
In one embodiment, the distribution width of the first wind guide plate group is m, the distribution width of the second wind guide plate group is n, and m/n is 1-1.4.
In one embodiment, the height of the gate is s, and m + n ≦ s.
The application also provides an air conditioner, which comprises the air grid.
In one embodiment, the air conditioner comprises a heat exchanger and a wind mechanism positioned above the heat exchanger, wherein the wind grid is correspondingly arranged on the inner side of the heat exchanger.
In one embodiment, the heat exchanger is a first U-shaped configuration and the air grid is a second U-shaped configuration.
In the above embodiment, the air guide space of the air guide plates positioned at the upper part of the grid body is larger than the air guide space of the air guide plates positioned at the lower part of the grid body, so that the resistance at the lower part of the air grid is larger than the resistance at the upper part of the air grid, and thus the air speed at the lower part of the air grid is increased, the air flow rate at the lower part of the heat exchanger is increased, the uniformity of the air speed distribution of the heat exchanger is improved, the heat exchange performance of the heat exchanger is improved, and the problem of poor overall performance of the heat exchanger 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 is a schematic structural view of an embodiment of a wind fence according to the present invention;
fig. 2 is a schematic structural view of an embodiment of an air conditioner according to the present invention;
FIG. 3 is a schematic view of an airflow distribution of an air conditioner according to the prior art;
fig. 4 is a schematic view of an air flow distribution of an air conditioner according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
When the conventional outdoor unit of the air conditioner with the upper air outlet works, air enters from the side surface of the heat exchanger and is blown out upwards from the top of the outdoor unit. The air flow at the upper part of the heat exchanger is shorter, the air flow at the lower part of the heat exchanger is longer, and the air at the lower part of the heat exchanger is blocked by internal components after entering the inside of the outdoor unit, so that the air flow rate at the upper part of the heat exchanger is higher, the air flow rate at the lower part of the heat exchanger is lower, and the air speed at the uppermost part of the heat exchanger of each manufacturer is measured to be 2-4 times of that at the lowermost part. Aiming at the problem, the invention provides the air grid with the novel structure, which can be applied to an air conditioner outdoor unit with upward air outlet, and is used for improving the problem of non-uniform air speed distribution of the heat exchanger and improving the heat exchange performance of the heat exchanger.
Fig. 1 shows an embodiment of the wind grid of the present invention, which includes a grid 10 and wind deflectors 20 mounted on the grid 10, wherein the wind guiding interval of the wind deflectors 20 located at the upper part of the grid 10 is larger than the wind guiding interval of the wind deflectors 20 located at the lower part of the grid 10.
By applying the technical scheme of the invention, the air guide distance of the air guide plates 20 positioned at the upper part of the grid body 10 is larger than the air guide distance of the air guide plates 20 positioned at the lower part of the grid body 10, so that the resistance at the lower part of the air grid is larger than the resistance at the upper part of the air grid, the air speed at the lower part of the air grid is improved, the air speed at the lower part of the heat exchanger is improved, the uniformity of the air speed distribution of the heat exchanger is improved, the heat exchange performance of the heat exchanger is improved, and the problem of poor overall performance of the heat exchanger is solved.
More preferably, in the technical solution of the present embodiment, the wind guiding angle of the wind guiding plate 20 located at the upper portion of the grid 10 is smaller than the wind guiding angle of the wind guiding plate 20 located at the lower portion of the grid 10, and the wind guiding angle is an included angle between the wind guiding plate 20 and the vertical downward direction. Therefore, the direction of the airflow entering the heat exchanger can be improved through different wind guide angles, so that the flow of the airflow at the lower part of the air grid is adjusted to be shorter, and the airflow flow rate is higher.
By applying the technical scheme of the invention, the wind speed distribution on the surface of the heat exchanger is improved through the two functions, the effect of adjusting the wind speed distribution on the surface of the heat exchanger is achieved, the position with high wind speed of the conventional outdoor unit is reduced, and the position with low wind speed is increased, so that the overall wind field cooperation of the heat exchanger is balanced, and the heat exchange capacity of the heat exchanger is improved.
It should be noted that the above-mentioned wind guide angle guides the included angle between the center line of the wind board and the vertical downward direction; the wind guide distance refers to the distance between the adjacent wind guide plates and the connection point of the grid body 10.
As an alternative embodiment, as shown in fig. 1, according to theoretical simulation calculation and experimental verification, in the present technical solution, the wind grid is preferably divided into an upper part and a lower part, the wind deflectors 20 include a first wind deflector group 20a and a second wind deflector group 20b, the first wind deflector group 20a is installed on the upper part of the grid 10, and the second wind deflector group 20b is installed on the grid 10 and is not located below the first wind deflector group 20 a. The air guide pitch of the first air guide plate group 20a is greater than the air guide pitch of the second air guide plate group 20b, and the air guide angle of the first air guide plate group 20a is smaller than the air guide angle of the second air guide plate group 20 b. By applying the embodiment, the effect of uneven wind speed at the upper part and the lower part of the heat exchanger can be improved only by installing the air guide plates with two air guide intervals and air guide angles. Specifically, in the present embodiment, the distribution width of the first air guide plate group 20a is m, the distribution width of the second air guide plate group 20b is n, and m/n is 1 to 1.4. Preferably, the wind speed uniformity can be more effectively adjusted by setting m/n to 1.2 according to the blockage of the components at the lower part of the conventional air conditioner. The height of the grid body 10 is s, and m + n is less than or equal to s. Wherein the height of s should not be greater than the heat exchanger height.
Through tests, the air guide angle is 80-150 degrees. Preferably, the wind guide angle of the first wind guide plate group 20a is 110 ° and the wind guide angle of the second wind guide plate group 20b is 143 °.
Through tests, the air guide distance is 1 cm-3 cm. Preferably, the air guide pitch of the first air guide plate group 20a is 2.3cm, and the air guide pitch of the second air guide plate group 20b is 1.5 cm.
Fig. 3 is a schematic view of airflow distribution of an air conditioner in the prior art, in which the air grid of the above embodiment is applied to the air conditioner, and fig. 4 is a schematic view of airflow distribution of the air conditioner in the present invention.
As another embodiment not shown in the drawings, in this embodiment, the wind guide pitch of the wind guide plate 20 is decreased in order from the upper end of the grid 10 to the lower end of the grid 10. More preferably, the wind guide angle of the wind guide plate 20 is increased from the upper end of the grid 10 to the lower end of the grid 10. This embodiment is more difficult and costly to install than the above-described embodiments, but may also have the above-described effect of adjusting the wind speed distribution more uniformly.
The invention also provides an air conditioner which comprises the air grid. The air conditioner adopting the air grid can improve the air speed distribution on the surface of the heat exchanger, achieve the effect of adjusting the air speed distribution on the surface of the heat exchanger, reduce the high position of the conventional outdoor unit with high air speed and improve the low position of the conventional outdoor unit with low air speed, thereby balancing the overall wind field cooperation of the heat exchanger and improving the heat exchange capacity of the heat exchanger. Alternatively, in this embodiment, the air conditioner includes a heat exchanger 30 and a wind mechanism 40 located above the heat exchanger 30, and the air grid is provided around the outer circumferential side of the heat exchanger 30. Preferably, as an alternative embodiment, the heat exchanger 30 has a first U-shaped structure, and the air grid has a second U-shaped structure disposed outside the heat exchanger 30.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the embodiment of the present invention by 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 (12)
1. The air grid comprises a grid body (10) and air deflectors (20) mounted on the grid body (10), and is characterized in that the air guiding interval of the air deflectors (20) positioned at the upper part of the grid body (10) is larger than the air guiding interval of the air deflectors (20) positioned at the lower part of the grid body (10).
2. The air grid according to claim 1, characterized in that the air guiding angle of the air guiding plate (20) positioned at the upper part of the grid body (10) is smaller than the air guiding angle of the air guiding plate (20) positioned at the lower part of the grid body (10), and the air guiding angle is the included angle between the air guiding plate (20) and the vertical downward direction.
3. The air grid according to claim 2, characterized in that the air guiding distance of the air guiding plate (20) decreases from the upper end of the grid body (10) to the lower end of the grid body (10).
4. The air grid according to claim 3, characterized in that the air guiding angle of the air guiding plate (20) increases from the upper end of the grid body (10) to the lower end of the grid body (10).
5. The air grid according to claim 2, wherein the air guiding angle is 80 ° to 150 °.
6. The air grid according to claim 1, wherein the air guiding interval is 1cm to 3 cm.
7. The air grid according to claim 2, characterized in that the air deflector (20) comprises:
a first air guide plate group (20a) mounted on the upper part of the grid body (10);
a second air guide plate group (20b) which is mounted on the grid body (10) and is not positioned below the first air guide plate group (20 a);
the air guide distance of the first air guide plate group (20a) is larger than the air guide distance of the second air guide plate group (20 b);
the wind guide angle of the first wind guide plate group (20a) is smaller than that of the second wind guide plate group (20 b).
8. The air grid according to claim 7, wherein the first air deflector group (20a) has a distribution width of m, and the second air deflector group (20b) has a distribution width of n, where m/n is 1-1.4.
9. The air grid according to claim 8, characterized in that the height of the grid body (10) is s, m + n ≦ s.
10. An air conditioner comprising an air grid, wherein the air grid is as claimed in any one of claims 1 to 9.
11. The air conditioner according to claim 10, wherein the air conditioner comprises a heat exchanger (30) and a wind mechanism (40) positioned above the heat exchanger (30), and the wind grid is correspondingly arranged on the inner side of the heat exchanger (30).
12. The air conditioner according to claim 11, wherein the heat exchanger (30) has a first U-shaped configuration and the air grid has a second U-shaped configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110853446.9A CN113701258B (en) | 2021-07-27 | 2021-07-27 | Air grid and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110853446.9A CN113701258B (en) | 2021-07-27 | 2021-07-27 | Air grid and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113701258A true CN113701258A (en) | 2021-11-26 |
| CN113701258B CN113701258B (en) | 2024-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110853446.9A Active CN113701258B (en) | 2021-07-27 | 2021-07-27 | Air grid and air conditioner |
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| Country | Link |
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| CN (1) | CN113701258B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114646105A (en) * | 2022-03-24 | 2022-06-21 | 青岛海尔空调电子有限公司 | Air conditioning system and top air-out air conditioning outdoor unit thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4545294A (en) * | 1983-11-21 | 1985-10-08 | Dayus Lloyd G | Frictional blade assembly for grille |
| JPH08178344A (en) * | 1994-12-27 | 1996-07-12 | Toshiba Corp | Air conditioner |
| JP2008128553A (en) * | 2006-11-21 | 2008-06-05 | Matsushita Electric Ind Co Ltd | Outdoor unit of air conditioner |
| JP2012026615A (en) * | 2010-07-21 | 2012-02-09 | Mitsubishi Electric Corp | Outdoor unit, and refrigeration cycle apparatus with the same |
| CN102980284A (en) * | 2011-09-02 | 2013-03-20 | 松下电器产业株式会社 | Air conditioner |
| CN203010886U (en) * | 2012-11-01 | 2013-06-19 | 浙江金宸三普换热器有限公司 | Concurrent flow evaporator for air conditioner cabinet machine |
| CN105841328A (en) * | 2016-05-18 | 2016-08-10 | 珠海格力电器股份有限公司 | air inlet panel and air conditioner |
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| CN109099618A (en) * | 2018-09-26 | 2018-12-28 | 广东格拉利节能科技有限公司 | A kind of novel finned heat exchanger air inlet even regulation device |
| CN210118869U (en) * | 2019-06-27 | 2020-02-28 | 广东美的制冷设备有限公司 | Wall-mounted indoor unit |
| WO2020121615A1 (en) * | 2018-12-14 | 2020-06-18 | 三菱電機株式会社 | Indoor unit and air conditioner |
| CN215951592U (en) * | 2021-07-27 | 2022-03-04 | 珠海格力电器股份有限公司 | Air grid and air conditioner |
-
2021
- 2021-07-27 CN CN202110853446.9A patent/CN113701258B/en active Active
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|---|---|---|---|---|
| US4545294A (en) * | 1983-11-21 | 1985-10-08 | Dayus Lloyd G | Frictional blade assembly for grille |
| JPH08178344A (en) * | 1994-12-27 | 1996-07-12 | Toshiba Corp | Air conditioner |
| JP2008128553A (en) * | 2006-11-21 | 2008-06-05 | Matsushita Electric Ind Co Ltd | Outdoor unit of air conditioner |
| JP2012026615A (en) * | 2010-07-21 | 2012-02-09 | Mitsubishi Electric Corp | Outdoor unit, and refrigeration cycle apparatus with the same |
| CN102980284A (en) * | 2011-09-02 | 2013-03-20 | 松下电器产业株式会社 | Air conditioner |
| CN203010886U (en) * | 2012-11-01 | 2013-06-19 | 浙江金宸三普换热器有限公司 | Concurrent flow evaporator for air conditioner cabinet machine |
| CN105841328A (en) * | 2016-05-18 | 2016-08-10 | 珠海格力电器股份有限公司 | air inlet panel and air conditioner |
| CN208011898U (en) * | 2018-03-21 | 2018-10-26 | 广东美的制冷设备有限公司 | Cabinet air-conditioner and air conditioner |
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| WO2020121615A1 (en) * | 2018-12-14 | 2020-06-18 | 三菱電機株式会社 | Indoor unit and air conditioner |
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| Title |
|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114646105A (en) * | 2022-03-24 | 2022-06-21 | 青岛海尔空调电子有限公司 | Air conditioning system and top air-out air conditioning outdoor unit thereof |
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| Publication number | Publication date |
|---|---|
| CN113701258B (en) | 2024-10-11 |
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