CN114264062A - Rectifying grating, centrifugal fan and wall-mounted air conditioner - Google Patents
Rectifying grating, centrifugal fan and wall-mounted air conditioner Download PDFInfo
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- CN114264062A CN114264062A CN202010974699.7A CN202010974699A CN114264062A CN 114264062 A CN114264062 A CN 114264062A CN 202010974699 A CN202010974699 A CN 202010974699A CN 114264062 A CN114264062 A CN 114264062A
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Abstract
The invention provides a rectifying grating, a centrifugal fan and a wall-mounted air conditioner, wherein the rectifying grating is used for rectifying the air outlet of the centrifugal fan and comprises the following components: the grille comprises a grille body and an air outlet hole formed in the grille body; along the direction of the volute side of the centrifugal fan to the volute tongue side, the area of the air outlet hole is gradually increased. The rectifying grating adopts the rectifying grating with non-equal size design, the air outlet area close to the volute is small, the air quantity is reduced, the air outlet area close to the volute tongue is large, and the air quantity is increased, so that the air quantity at the volute side and the air quantity at the volute tongue are leveled, the air flow at the air outlet of the centrifugal fan is more uniform, and the overall comfort of the centrifugal air conditioner is improved.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly relates to a rectifying grille and a wall-mounted air conditioner.
Background
The wall hanging machine adopting the centrifugal fan is influenced by the structural form of the volute tongue and the volute, the uniformity of air flow at the air outlet is poor, and the whole performance is that the wind speed at the volute tongue and the middle area is high, the wind speed close to the volute is low, the wind speed influences the wind quantity, the wind quantity at the volute tongue is smaller than that at the volute, the distribution uniformity of the air flow is influenced, and the comfort of the whole air conditioner is also influenced.
Disclosure of Invention
Therefore, the invention aims to solve the technical problem of uneven air flow distribution caused by the difference of the air speeds of the air outlets of the centrifugal fans, and provides a rectifying grille and a wall-mounted air conditioner.
In order to solve the above problem, the present invention provides a flow straightening grille for straightening outlet air of a centrifugal fan, comprising:
the grille comprises a grille body and an air outlet hole formed in the grille body;
along the direction of the volute side of the centrifugal fan to the volute tongue side, the area of the air outlet hole is gradually increased.
Preferably, the centrifugal fan is arranged close to the wall, and the area of the air outlet hole is gradually increased along the direction from the wall attaching side to the wall detaching side of the centrifugal fan.
Preferably, the maximum area of the air outlet hole is SmaxMinimum area of SminSatisfies Smin≥Smax×40％。
Preferably, the maximum area of the air outlet hole is SmaxThe maximum area of the air outlet close to the side close to the close wall is Smax1Satisfies Smax1≤Smax×60％。
Preferably, the maximum area of the air outlet hole is SmaxThe maximum area of the air outlet hole close to the volute side is Smax2Satisfies Smax2≤Smax×80％。
Preferably, the air outlet hole is any one of a circle, an ellipse, a quadrangle and a moire shape.
A centrifugal fan adopts the above rectification grille.
A wall-mounted air conditioner adopts the rectification grille.
The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.
Preferably, including the shell body, be equipped with at least one centrifugal fan in the shell body, be equipped with at least one air intake on the shell body, at least one air outlet, the rectification grid is installed on the air outlet.
Preferably, the air inlet is provided with an air inlet panel, the air inlet panel is hinged at the joint of the air inlet and the air outlet, the air inlet panel can separate the air inlet from the air outlet, the air inlet and the air outlet are prevented from being short-circuited by air flow of the air inlet and the air outlet, and the opening and closing of the air inlet and the air inlet area can be controlled.
Preferably, the air outlet is provided with an air deflector which can be rotatably mounted on the wall side of the air outlet, and the air deflector can control the opening and closing of the air outlet and guide air.
The rectifying grating, the centrifugal fan and the wall-mounted air conditioner provided by the invention at least have the following beneficial effects:
the invention relates to a rectifying grating, aiming at the problem that the existing centrifugal fan is influenced by a volute tongue and a volute structure, the wind speed at the volute tongue is higher than that at the volute so that the air output at the volute tongue is lower than that at the volute, and the uniformity of air flow distribution is further influenced.
Drawings
FIG. 1 is a schematic structural diagram of a rectifying grid according to an embodiment of the present invention;
fig. 2 is a schematic view illustrating an internal structure of a wall-mounted air conditioner according to an embodiment of the present invention;
fig. 3 is a side view of a wall-mounted type air conditioner according to an embodiment of the present invention.
The reference numerals are represented as:
1. a rectifying grid; 2. a centrifugal fan; 3. a grid body; 4. an air outlet; 5. sticking a wall side; 6. an off-wall side; 7. an outer housing; 8. an air inlet; 9. an air outlet; 10. an air intake panel; 11. an air deflector; 12. the tongue side of the snail; 13. volute side.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
With reference to fig. 1, the present embodiment provides a rectifying grille 1 for rectifying the air output from a centrifugal fan 2, including: the grille comprises a grille body 3 and an air outlet 4 formed in the grille body 3; the area of the air outlet 4 gradually increases along the direction from the volute side 13 to the volute tongue side 12 of the centrifugal fan 2.
The rectifying grating of the embodiment is influenced by a volute tongue and a volute structure aiming at the existing centrifugal fan, the wind speed at the volute tongue is higher than that at the volute so that the air output at the volute tongue is lower than that at the volute and the uniformity of air flow distribution is further influenced.
Factor of influence centrifugal fan air-out homogeneity, except spiral case snail tongue structural feature, when still including centrifugal fan 2 adherence setting, the air current is close to the wall and flows, under the influence of adherence effect, the air current velocity of flow that is close to the wall more is faster, thereby form the velocity difference, influence the homogeneity of air-out, for solving this problem, it is preferred, along centrifugal fan 2 paste wall side 5 to the direction from wall side 6, make the area of exhaust vent 4 increase gradually, the air outlet 4 area that is close to the wall is less, the air outlet 4 area of keeping away from the wall is great, thereby reach the homogeneity of air-out.
Preferably, the maximum area of the air outlet 4 is SmaxMinimum area of SminSatisfies Smin≥SmaxX 40%. The maximum area of the air outlet opening 4 close to the close wall side 5 is Smax1Satisfies Smax1≤SmaxX 60%. The maximum area of the air outlet 4 close to the volute side is Smax2Satisfies Smax2≤SmaxX 80%. When the rectification grid of the embodiment meets the proportion, the airflow uniformity of the air outlet of the centrifugal fan is the best.
Preferably, the air outlet 4 is any one of a circle, an ellipse, a quadrangle and a moire shape. The shape of the outlet 4 is not fixed and is not limited to the above listed ones.
The embodiment also provides a centrifugal fan 2, which adopts the rectifying grating 1.
As shown in fig. 2 and 3, the present embodiment further provides a wall-mounted air conditioner, which employs the above-mentioned rectification grill 1.
Preferably, the wall-mounted air conditioner comprises an outer shell 7, at least one centrifugal fan 2 is arranged in the outer shell 7, at least one air inlet 8 and at least one air outlet 9 are arranged on the outer shell 7, and the rectifying grille 1 is arranged on the air outlet 9.
Preferably, the air inlet 8 is provided with an air inlet panel 10, the air inlet panel 10 is hinged to the joint of the air inlet 8 and the air outlet 9, the air inlet panel 10 can be opened along the rotation of the hinged joint, the air inlet panel 10 can separate the air inlet 8 from the air outlet 9, the air inlet 8 and the air outlet 9 are prevented from being short-circuited by air flow, the opening and closing of the air inlet 8 can be controlled, and the air inlet area of the air inlet 8 is adjusted by adjusting the opening angle of the air inlet panel 10.
Preferably, the air outlet 9 is provided with an air deflector 11, the air deflector 11 is rotatably mounted on the wall-attached side of the air outlet 9, the air deflector 11 can control the opening and closing of the air outlet 9 and guide air, and when the air flow does not need to sink against the wall, the air deflector 11 is controlled to form a certain angle with the wall surface, so that the air flow blown out from the air outlet 9 is blown out along the angle.
The wall-mounted air conditioner of this embodiment is equipped with two centrifugal fan 2, and two centrifugal fan 2 are equipped with different air intake 8, air outlet 9, air inlet panel 10 and aviation baffle 11 respectively, and every centrifugal fan 2 all can the independent operation, and independent control air inlet panel 10 and aviation baffle 11 realize the difference business turn over wind, directional air supply, and energy utilization is rateed highly.
According to the wall-mounted air conditioner, the air inlet 8 and the air outlet 9 are separated through the air inlet panel 10, short circuit of air flow between the air inlet and the air outlet is effectively prevented, the air outlet 9 adopts the rectification grids 1 with unequal area, uniformity of air outlet air flow is improved, and directional air supply is achieved by matching the rotary air deflector 11.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.
Claims (11)
1. The utility model provides a rectification grid for the rectification of centrifugal fan (2) air-out, its characterized in that includes:
the air-out hole grating comprises a grating body (3) and an air-out hole (4) formed in the grating body (3);
the area of the air outlet hole (4) is gradually increased along the direction from the volute side (13) to the volute tongue side (12) of the centrifugal fan (2).
2. The flow straightener grid according to claim 1, wherein the centrifugal fan (2) is arranged adherent to the wall, and the area of the air outlet holes (4) increases gradually in the direction from the adherent side (5) to the detached side (6) of the centrifugal fan (2).
3. According to the claims2, the rectification grid is characterized in that the maximum area in the air outlet holes (4) is SmaxMinimum area of SminSatisfies Smin≥Smax×40％。
4. Rectifying grid according to claim 2, characterized in that the maximum area of the outlet openings (4) is SmaxThe maximum area of the air outlet (4) close to the wall-close side (5) is Smax1Satisfies Smax1≤Smax×60％。
5. Rectifying grid according to claim 2, characterized in that the maximum area of the outlet openings (4) is SmaxThe maximum area of the air outlet (4) close to the volute side (13) is Smax2Satisfies Smax2≤Smax×80％。
6. The grille of any one of claims 1 to 5, wherein the outlet openings (4) are any one of circular, oval, quadrilateral and moire shaped.
7. A centrifugal fan, characterized in that a straightening grate (1) according to any of claims 1-6 is used.
8. A wall-mounted air conditioner characterized in that a rectifying grille (1) according to any one of claims 1 to 6 is used.
9. The wall-mounted air conditioner according to claim 8, characterized by comprising an outer shell (7), wherein at least one centrifugal fan (2) is arranged in the outer shell (7), at least one air inlet (8) and at least one air outlet (9) are arranged on the outer shell (7), and the rectifying grille (1) is arranged on the air outlet (9).
10. The wall-mounted air conditioner according to claim 9, wherein the air inlet (8) is provided with an air inlet panel (10), the air inlet panel (10) is hinged at the joint of the air inlet (8) and the air outlet (9), the air inlet panel (10) can separate the air inlet (8) and the air outlet (9) to prevent the air inlet (8) and the air outlet (9) from short-circuiting air flow, and can also control the opening and closing of the air inlet (8) and the air inlet area.
11. The wall-mounted air conditioner according to claim 9, wherein the air outlet (9) is provided with a deflector (11), the deflector (11) is rotatably mounted on the wall-mounted side of the air outlet (9), and the deflector (11) can control the opening and closing of the air outlet (9) and guide the air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010974699.7A CN114264062A (en) | 2020-09-16 | 2020-09-16 | Rectifying grating, centrifugal fan and wall-mounted air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010974699.7A CN114264062A (en) | 2020-09-16 | 2020-09-16 | Rectifying grating, centrifugal fan and wall-mounted air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114264062A true CN114264062A (en) | 2022-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010974699.7A Pending CN114264062A (en) | 2020-09-16 | 2020-09-16 | Rectifying grating, centrifugal fan and wall-mounted air conditioner |
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| CN (1) | CN114264062A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06323616A (en) * | 1993-05-12 | 1994-11-25 | Fujita Corp | Supply air blow-off unit of clean room |
| JP2008095983A (en) * | 2006-10-06 | 2008-04-24 | Matsushita Electric Ind Co Ltd | Fan filter unit |
| JP2011058695A (en) * | 2009-09-09 | 2011-03-24 | Hitachi Appliances Inc | Floor type air conditioner |
| CN104729043A (en) * | 2015-03-17 | 2015-06-24 | 广东美的制冷设备有限公司 | Air-conditioner air-inlet grille and air-conditioner |
| CN205137693U (en) * | 2015-11-13 | 2016-04-06 | 青岛海尔空调器有限总公司 | Air -conditioning indoor unit |
| US20200072257A1 (en) * | 2018-08-31 | 2020-03-05 | Denso International America, Inc. | Hvac airflow baffle |
| CN210801396U (en) * | 2019-10-29 | 2020-06-19 | 广东美的制冷设备有限公司 | Fan subassembly, machine and air conditioner in air conditioning |
-
2020
- 2020-09-16 CN CN202010974699.7A patent/CN114264062A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06323616A (en) * | 1993-05-12 | 1994-11-25 | Fujita Corp | Supply air blow-off unit of clean room |
| JP2008095983A (en) * | 2006-10-06 | 2008-04-24 | Matsushita Electric Ind Co Ltd | Fan filter unit |
| JP2011058695A (en) * | 2009-09-09 | 2011-03-24 | Hitachi Appliances Inc | Floor type air conditioner |
| CN104729043A (en) * | 2015-03-17 | 2015-06-24 | 广东美的制冷设备有限公司 | Air-conditioner air-inlet grille and air-conditioner |
| CN205137693U (en) * | 2015-11-13 | 2016-04-06 | 青岛海尔空调器有限总公司 | Air -conditioning indoor unit |
| US20200072257A1 (en) * | 2018-08-31 | 2020-03-05 | Denso International America, Inc. | Hvac airflow baffle |
| CN210801396U (en) * | 2019-10-29 | 2020-06-19 | 广东美的制冷设备有限公司 | Fan subassembly, machine and air conditioner in air conditioning |
Non-Patent Citations (1)
| Title |
|---|
| 华北电力学校编, 电力工业出版社 * |
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