CN111397005A - Air outlet grille and air conditioner - Google Patents

Air outlet grille and air conditioner Download PDF

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Publication number
CN111397005A
CN111397005A CN202010329721.2A CN202010329721A CN111397005A CN 111397005 A CN111397005 A CN 111397005A CN 202010329721 A CN202010329721 A CN 202010329721A CN 111397005 A CN111397005 A CN 111397005A
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CN
China
Prior art keywords
ribs
air outlet
inner frame
rib
distance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010329721.2A
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Chinese (zh)
Inventor
钱培
刘佳薇
蒋力
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aux Air Conditioning Co Ltd
Ningbo Aux Electric Co Ltd
Original Assignee
Aux Air Conditioning Co Ltd
Ningbo Aux Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aux Air Conditioning Co Ltd, Ningbo Aux Electric Co Ltd filed Critical Aux Air Conditioning Co Ltd
Priority to CN202010329721.2A priority Critical patent/CN111397005A/en
Publication of CN111397005A publication Critical patent/CN111397005A/en
Pending legal-status Critical Current

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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
    • F24F1/06—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
    • 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
    • F24F1/56—Casing or covers of separate outdoor units, e.g. fan guards
    • 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 invention provides an air outlet grille and an air conditioner, comprising: the inner frame, the first ribs which are arranged concentrically with the inner frame, have larger diameters than the inner frame and gradually increase the diameters, and the second ribs which are connected with the first ribs and/or the inner frame with preset number; the distance between the first ribs is gradually increased from the first ribs to the direction of the inner frame; the spacing between the second ribs gradually decreases in this direction. The air outlet area can be increased, the air outlet quantity is increased, the system impedance caused by the air outlet grating is reduced, and the fan efficiency is improved.

Description

Air outlet grille and air conditioner
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air outlet grille and an air conditioner.
Background
The air outlet grille is widely applied to the outdoor unit of the air conditioner and used for protecting the fan blades and preventing foreign matters from entering the outdoor unit of the air conditioner to damage the outdoor unit of the air conditioner.
The existing air outlet grille is composed of annular ribs and radial ribs, wherein the annular ribs are concentric cylindrical surfaces taking a rotating shaft as a circle center under the normal condition, and the distance between the adjacent annular ribs is constant, namely the annular ribs are distributed at equal intervals. When the system requires a large air volume, the air outlet grille is a main source of system resistance of the outdoor unit. The conventional air outlet grille causes larger system impedance, influences the air quantity of an external machine and reduces the efficiency of the fan, so that the air outlet condition of the annular air outlet grille needs to be optimized urgently.
Disclosure of Invention
The present invention is directed to an air outlet grille and an air conditioner, which at least partially solve the above technical problems.
In order to solve the above problem, an aspect of the present invention provides an air outlet grille, including: the inner frame, the first ribs which are arranged concentrically with the inner frame, have larger diameters than the inner frame and gradually increase the diameters, and the second ribs which are connected with the first ribs and/or the inner frame with preset number; the distance between the first ribs is gradually increased from the first ribs to the direction of the inner frame; the spacing between the second ribs gradually decreases in this direction.
From this, adopt the mode that is close to inner frame department second rib interval reduces gradually, can improve the grid intensity of being close to inner frame department for the experiment indicates that the test satisfies more easily. And, adopt the mode that increases the interval between the first rib of air-out grid near inside casing department, can improve the air-out area, increase the air output, reduce the system impedance that the air-out grid caused, improve fan efficiency.
Optionally, the second ribs include short ribs connecting a preset number of the first ribs from outside to inside, and long ribs connecting all the first ribs with the inner frame.
Like this, short rib does not increase the air-out area that is close to inner frame department with inner frame connection, long rib with all first rib and inner frame connection, guarantee air-out grid's intensity.
Optionally, the number of the short ribs is consistent with that of the long ribs, and the short ribs and the long ribs are alternately arranged and evenly distributed along the circumferential direction of the first ribs. The adjacent first ribs and the adjacent second ribs form styles, and the air outlet areas of the styles on the same first rib are equal.
The air outlet efficiency is improved by optimizing the number and the positions of the short ribs and the long ribs and the air outlet area of the air outlet style.
Optionally, the spacing between first ribs intersecting the short ribs satisfies the following formula: di＝R×d1/(R-(i-1)×d1) (ii) a Wherein R is the radius of the first rib with the largest diameter, d1Is the distance between the 1 st and 2 nd first ribs from outside to inside, i is the ith first rib from outside to inside, diThe spacing between the ith and (i + 1) th first ribs.
Optionally, the spacing between only first ribs intersecting the long ribs satisfies the following equation: dj＝(R×d1/(R-(j-1)×d1) 2; wherein R is the radius of the first rib with the largest diameter, d1Is the distance between the 1 st and 2 nd first ribs from outside to inside, j is the jth first rib from outside to inside, djThe spacing between the jth and the (j + 1) th first ribs.
Through different computational formulas, the interval between the first rib of having guaranteed to be close to inside casing department air-out grid increases gradually, improves the air-out area, increases the air output.
Optionally, the number of the first ribs connected with the short ribs is different from the number of all the first ribs by 4-8. Namely, the difference between the short ribs and the long ribs is 4-8 first ribs, and if the difference between the short ribs and the long ribs is too much, the strength of the grating is reduced; if this quantity is too little, reduce the air-out area, increase the grid resistance, influence fan efficiency.
Optionally, the spacing between the first ribs is less than or equal to 10 mm. So as to ensure the strength of the air outlet grille.
Optionally, the first ribs are divided into a plurality of sections of arc ribs by the second ribs, and along the rotation direction of the fan blade, the distance between the end point of each arc rib and the center of the inner frame gradually increases. .
Optionally, the distance between the end point of the arc rib and the center of the inner frame satisfies the following formula: r2＝m×R1Wherein R is1Is the distance between one end point of the arc rib and the circle center of the inner frame, R2The distance between the next end point of the arc rib and the circle center of the inner frame along the rotation direction of the fan blade is 1.0-1.2.
Therefore, the air outlet grating is more consistent with the flowing direction of the air flow (namely the rotating direction of the fan blades), the interference of the air outlet grating on the air flow is reduced, and the air volume is increased.
Another aspect of the present invention provides an air conditioner, including the above-mentioned air outlet grille.
The air conditioner has the same advantages as the air outlet grille, and the description is omitted.
Drawings
Fig. 1 schematically illustrates a structural diagram of an air outlet grille according to an embodiment of the present invention;
fig. 2 schematically illustrates an enlarged view of a position a in the air outlet grille according to an embodiment of the present invention;
fig. 3 schematically illustrates an enlarged view at a position B in the air outlet grille provided in the embodiment of the present invention;
fig. 4 schematically shows a schematic view of a grille structure at an enlarged position a in the air outlet grille provided in the embodiment of the present invention along the rotation direction of the fan blade.
Description of the drawings:
1-an inner frame; 2-first ribs; 3-second ribs; 4-style generation; 301-short ribs; 302-long ribs; 401-little style; 402-grand style.
Detailed Description
In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all the embodiments. 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.
Example one
An embodiment of the present invention provides an air outlet grille, which is described in detail with reference to fig. 1 and fig. 2 to 4.
It should be noted that the directions or positional relationships indicated below in reference to "inside", "outside", and the like of each structural member refer to the orientations or positional relationships shown in the drawings; these positional relationships are merely for convenience and simplicity of description and do not indicate or imply that the device referred to must have a particular orientation, be constructed and operated in a particular orientation and therefore should not be construed as limiting the invention.
The air-out grid that this embodiment provided includes: the inner frame 1, the first ribs 2 which are concentric with the inner frame 1, have diameters larger than that of the inner frame 1 and gradually increase, and the second ribs 3 which are connected with the first ribs 2 and/or the inner frame 1 in preset number; the distance between the first ribs 2 is gradually increased from the first ribs 2 to the direction of the inner frame 1; the spacing between the second ribs 3 decreases gradually in this direction.
The mode that the second rib interval reduces gradually near inner frame department is adopted, can improve the grid intensity near inner frame department for the experiment indicates that the test satisfies more easily. And, adopt the mode that increases the interval between the first rib of air-out grid near inside casing department, can improve the air-out area, increase the air output, reduce the system impedance that the air-out grid caused, improve fan efficiency.
The first ribs 2 may be concentric frames concentrically arranged with the inner frame 1, such a structure is exemplified by the air outlet grille being circular as a whole, for example, a circular air outlet grille is usually adopted for a top air outlet outdoor unit, but the circular integral structure or the circular first ribs 2 is only an example of the present invention and is not to be understood as a limitation of the present invention, and the specific shape of the first ribs 2 may be adaptively adjusted according to actual situations, for example, a rectangular frame, etc.
In a feasible manner of the embodiment of the present invention, the second ribs 3 include short ribs 301 connecting a preset number of the first ribs 2 from outside to inside, and long ribs 302 connecting all the first ribs 2 and the inner frame 1; the difference between the number of the first ribs 2 connected with the short ribs 301 and the number of all the first ribs 2 is 4-8. Namely, the short ribs 301 are the first ribs 2 with the largest diameter, namely, the first ribs 2 arranged at the outermost ring are connected with N-4, N-5, N-6, N-7 or N-8 first ribs 2 towards the inner frame 1, and the total number of all the first ribs 2 is N. The difference between the short ribs and the long ribs is 4-8 first ribs, and if the difference between the short ribs and the long ribs is too much, the strength of the grid is reduced; if this quantity is too little, reduce the air-out area, increase the grid resistance, influence fan efficiency.
For example, the total number of all the first ribs 2 is 15, the short ribs 301 are connected to 10 first ribs 2 inward from the outermost turn, and the long ribs 302 are connected to the 15 first ribs 2 and to the inner frame 1, and at this time, the difference between the short ribs 301 and the long ribs 302 is 5 first ribs.
In another feasible manner of the embodiment of the present invention, the short ribs 301 and the long ribs 302 are equal in number, and the short ribs 301 and the long ribs 302 are alternately arranged and uniformly distributed along the circumferential direction of the first ribs 2. The adjacent first ribs 2 and the adjacent second ribs 3 form styles 4, and the air outlet areas of the styles 4 on the same first rib 2 are equal. Here, when the adjacent second ribs 3 are the short ribs 301 and the long ribs 302, the air outlet lattice 4 is the small air outlet lattice 401 shown in fig. 1, and the area thereof is small, and when the adjacent second ribs 3 are the two long ribs 302, the air outlet lattice 4 is the large air outlet lattice 402 shown in fig. 1, and the area thereof is large relative to the small air outlet lattice 401. The air outlet efficiency is improved by optimizing the number and the positions of the short ribs and the long ribs and the air outlet area of the air outlet style.
In addition, referring to fig. 2, the spacing between the first ribs 2 intersecting the short ribs 301 satisfies the following equation: di＝R×d1/(R-(i-1)×d1) (ii) a Wherein R is the radius of the first rib 2 with the largest diameter, d1Is the distance between the 1 st and the 2 nd first ribs 2 from outside to inside, i is the ith first rib 2 from outside to inside, diThe spacing between the ith and (i + 1) th first ribs 2. Referring to fig. 3, the spacing between only the first ribs 2 intersecting the long ribs 302 satisfies the following equation: dj＝(R×d1/(R-(j-1)×d1) 2; wherein R is the radius of the first rib 2 with the largest diameter, d1Is the distance between the 1 st and the 2 nd first ribs 2 from outside to inside, j is the jth first rib 2 from outside to inside, djThe spacing between the jth and the j +1 th first ribs 2. Here, the 1 st first bead 2 from the outside to the inside is the outermost ring first bead 2 having the largest diameter. Through different computational formulas, the interval between the first rib of having guaranteed to be close to inside casing department air-out grid increases gradually, improves the air-out area, increases the air output.
It should be noted that the distance between the first ribs 2 is less than or equal to 10 mm. When carrying out interval calculation between the first rib through above-mentioned two formulas, if the result that obtains is greater than 10mm, should set up according to 10mm to avoid the interval too big between the first rib, guarantee the intensity of air-out grid. In another feasible manner of the embodiment of the present invention, the first ribs 2 are divided into a plurality of arc ribs by the second ribs 3, and the distance between the end point of each arc rib and the center of the inner frame 1 gradually increases along the rotation direction of the fan blade. Specifically, the distance between the end point of the arc rib and the circle center of the inner frame 1 satisfies the following formula: r2＝m×R1Wherein R is1Is the distance between one end point of the arc rib and the circle center of the inner frame, R2The distance between the next end point of the arc rib and the circle center of the inner frame along the rotation direction of the fan blade is 1.0-1.2.
Due to the action of centrifugal force, when air flows pass through the air outlet grating, a radial speed air quantity exists, namely, when the air flows rotate along the circumference, the air flows diffuse outwards, and the distance between the air flows and the rotating shaft is increased. Referring to fig. 4, an intersection point of the first rib 2 and the second rib 3 is M, that is, an end point of the arc rib S is M, and an intersection point of the arc rib S and the next adjacent second rib 3 along the rotation direction (that is, along the rotation direction of the fan blade) is M ', that is, an end point of the arc rib S is M'. The distance between the arc ribs S between the M and the M' and the circle center of the inner frame 1 increases along the rotation direction omega of the fan blade, and the distance between the M and the circle center of the inner frame 1 is R1The distance between the M' position and the center of the inner frame 1 is R2Taking R2＝m×R1And m is 1.0 to 1.2. Wherein if m is too large, adjacent first ribs2, the net cover strength is weakened due to too much staggering. R2 > R1 makes air-out grid first rib 2 more accord with the flow direction of air current, reduces the interference of air-out grid to the air current, improves the amount of wind.
Example two
The embodiment provides an air conditioner, which comprises the air outlet grille in the first embodiment.
In summary, the invention adopts a mode that the distance between the second ribs close to the inner frame is gradually reduced, so that the strength of the grating close to the inner frame can be improved, and the experimental finger test is easier to meet. And, adopt the mode that increases the interval between the first rib of air-out grid near inside casing department, can improve the air-out area, increase the air output, reduce the system impedance that the air-out grid caused, improve fan efficiency. In addition, the radius of the first ribs is gradually increased along the rotation direction of the fan blade, so that the first ribs of the air outlet grating are more consistent with the flowing direction of the air flow, the interference of the air outlet grating on the air flow is reduced, and the air volume is increased.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (11)

1. The utility model provides an air-out grid, its characterized in that includes: the inner frame (1), the first ribs (2) which are arranged concentrically with the inner frame (1), have the diameters larger than that of the inner frame (1) and are gradually increased, and the second ribs (3) which are connected with the first ribs (2) and/or the inner frame (1) in preset numbers;
the distance between the first ribs (2) is gradually increased from the direction of the first ribs (2) to the inner frame (1); the spacing between the second ribs (3) decreases gradually in this direction.
2. An air outlet grille according to claim 1, characterized in that the second ribs (3) comprise short ribs (301) connecting a predetermined number of first ribs (2) from the outside inwards, and long ribs (302) connecting all first ribs (2) with the inner frame (1).
3. An air outlet grille according to claim 2, characterized in that the number of the short ribs (301) is the same as that of the long ribs (302), and the short ribs (301) and the long ribs (302) are alternately arranged and evenly distributed along the circumferential direction of the first ribs (2).
4. An air outlet grille according to claim 2, characterized in that the spacing between the first ribs (2) intersecting the short ribs (301) satisfies the following equation: di＝R×d1/(R-(i-1)×d1) (ii) a Wherein R is the radius of the first rib (2) with the largest diameter, d1Is the distance between the 1 st and the 2 nd first ribs (2) from outside to inside, i is the ith first rib (2) from outside to inside, diIs the distance between the ith and the (i + 1) th first ribs (2).
5. An air outlet grille according to claim 2, characterized in that the spacing between the first ribs (2) intersecting only the long ribs (302) satisfies the following equation: dj＝(R×d1/(R-(j-1)×d1) 2; wherein R is the radius of the first rib (2) with the largest diameter, d1Is the distance between the 1 st and the 2 nd first ribs (2) from outside to inside, j is the j first rib (2) from outside to inside, djThe distance between the jth and the (j + 1) th first ribs (2).
6. An air outlet grille according to claim 1, characterized in that the adjacent first ribs (2) and the adjacent second ribs (3) form styles (4), and the air outlet areas of the styles (4) on the same first rib (2) are equal.
7. An air outlet grille according to claim 2, characterized in that the number of first ribs (2) connected with the short ribs (301) differs from the number of all first ribs (2) by 4-8.
8. Air outlet grille according to any one of claims 1 to 7, characterized in that the spacing between the first ribs (2) is less than or equal to 10 mm.
9. The air outlet grille according to claim 1, characterized in that the first ribs (2) are divided into a plurality of arc ribs by the second ribs (3), and the distance between the end point of each arc rib and the center of the inner frame (1) is gradually increased along the rotation direction of the fan blade.
10. An air outlet grille according to claim 9, characterized in that the distance between the end point of the arc rib and the circle center of the inner frame (1) satisfies the following formula: r2＝m×R1Wherein R is1Is the distance between one end point of the arc rib and the circle center of the inner frame, R2The distance between the next end point of the arc rib and the circle center of the inner frame along the rotation direction of the fan blade is 1.0-1.2.
11. An air conditioner characterized by comprising the air outlet grille according to any one of claims 1 to 10.
CN202010329721.2A 2020-04-23 2020-04-23 Air outlet grille and air conditioner Pending CN111397005A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010329721.2A CN111397005A (en) 2020-04-23 2020-04-23 Air outlet grille and air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010329721.2A CN111397005A (en) 2020-04-23 2020-04-23 Air outlet grille and air conditioner

Publications (1)

Publication Number Publication Date
CN111397005A true CN111397005A (en) 2020-07-10

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Application Number Title Priority Date Filing Date
CN202010329721.2A Pending CN111397005A (en) 2020-04-23 2020-04-23 Air outlet grille and air conditioner

Country Status (1)

Country Link
CN (1) CN111397005A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104048369A (en) * 2014-07-04 2014-09-17 珠海格力电器股份有限公司 Air conditioner outdoor unit and air outlet grille thereof
CN104235971A (en) * 2013-06-08 2014-12-24 海信（山东）空调有限公司 Fan cover for air-conditioner outdoor machine and air-conditioner outdoor machine
CN108036433A (en) * 2018-01-05 2018-05-15 奥克斯空调股份有限公司 Fan blade guard, air-supply arrangement and air-conditioning
US20200109868A1 (en) * 2018-10-05 2020-04-09 Samsung Electronics Co., Ltd Air conditioner
CN212132719U (en) * 2020-04-23 2020-12-11 宁波奥克斯电气股份有限公司 Air outlet grille and air conditioner

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104235971A (en) * 2013-06-08 2014-12-24 海信（山东）空调有限公司 Fan cover for air-conditioner outdoor machine and air-conditioner outdoor machine
CN104048369A (en) * 2014-07-04 2014-09-17 珠海格力电器股份有限公司 Air conditioner outdoor unit and air outlet grille thereof
CN108036433A (en) * 2018-01-05 2018-05-15 奥克斯空调股份有限公司 Fan blade guard, air-supply arrangement and air-conditioning
US20200109868A1 (en) * 2018-10-05 2020-04-09 Samsung Electronics Co., Ltd Air conditioner
CN212132719U (en) * 2020-04-23 2020-12-11 宁波奥克斯电气股份有限公司 Air outlet grille and air conditioner

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