CN215523548U - Air outlet grille and air conditioner - Google Patents
Air outlet grille and air conditioner Download PDFInfo
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- CN215523548U CN215523548U CN202121263539.8U CN202121263539U CN215523548U CN 215523548 U CN215523548 U CN 215523548U CN 202121263539 U CN202121263539 U CN 202121263539U CN 215523548 U CN215523548 U CN 215523548U
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Abstract
The utility model provides an air outlet grille and an air conditioner, wherein the air outlet grille comprises a frame, and a longitudinal grille and a transverse grille which are arranged in an intersecting manner, two ends of the longitudinal grille and/or the transverse grille are fixedly arranged on the frame, the longitudinal grille is provided with a finger protection structure, the finger protection structure comprises a convex rib, and the convex rib is arranged in a protruding manner towards the inner side of the longitudinal grille. The inner side is the side of the air outlet grille close to the axial flow fan. The arrangement can avoid safety accidents caused by the fact that fingers stretch into the air outlet grille by mistake under the condition that the outer sides of the air outlet grille are flush, so that the purpose of finger protection is achieved; simultaneously, the finger protection structure is optimized, and the air outlet efficiency, the noise and the mechanical strength can be considered through the whole body with a spiral angle.
Description
Technical Field
The utility model 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 an important component of an air duct of an outdoor unit of an air conditioner, is usually arranged on a casing of the outdoor unit and mainly used for guiding air, rectifying air and protecting safety. Air-out grid among the prior art can hold the size that an adult pointed in the space of the first muscle of its left and right sides, can't avoid stretching into of finger completely, has children to miss and touches the risk.
When the axial flow fan of the outdoor unit rotates at a high speed, an air flow with a centrifugal effect is generated, a centripetal rotation angle is formed when the air flow passes through the air outlet grille, and noise and wind resistance are easily formed when the air flow passes through the air outlet grille. The structure of the air outlet duct, which is the last component of the air outlet duct, has an important influence on the air outlet rate and noise of the outdoor unit.
Therefore, the problem that the technical personnel in the field urgently need to solve is how to effectively overcome the mistaken touch risk of the air outlet grille and simultaneously consider the wind resistance and the noise performance.
SUMMERY OF THE UTILITY MODEL
The utility model solves the problem that the left side and the right side of the existing air outlet grille have larger gaps, so that the risk of touching by mistake of children exists.
In order to solve the problems, the utility model provides an air outlet grille, which comprises a frame, and a longitudinal grille and a transverse grille which are arranged in an intersecting manner, wherein two ends of the longitudinal grille and/or the transverse grille are fixedly arranged on the frame, the longitudinal grille is provided with a finger protection structure, the finger protection structure comprises convex ribs, and the convex ribs are arranged in a protruding manner towards the inner side of the longitudinal grille.
The inner side is the side of the air outlet grille close to the axial flow fan. This setting can be under the high parallel and level's in the air-out grid outside the condition, avoids the finger mistake to stretch into and contact the fan and cause the incident, reaches the finger guard purpose. The convex rib can be to following the length direction of indulging the grid sets up a convex rib, also can be a plurality of convex ribs that the length direction of the grid set up are indulged to the perpendicular to, simple structure, and is with low costs, the production and processing of being convenient for.
Preferably, the plurality of ribs are arranged at intervals along the length direction of the longitudinal grid adjacent to the frame to form a wave-shaped or zigzag structure. The arrangement can reduce noise, enhance air volume and slow down air speed; meanwhile, the structure is simple, the material consumption is saved, the shape is beautiful, and the beauty is satisfied.
Preferably, the finger protection structure further comprises air guide holes with the same number as the convex ribs, the air guide holes vertically penetrate through the convex ribs, and the diameters of the air guide holes are D1The height of the convex rib is H2Of which 25% is H2≤D1≤50％*H2。
Preferably, the diameter D of the wind guide hole1Is the height H of the vertical grid120% of the total. The wind speed of the air outlet can be further slowed down by arranging the wind guide holes, the air quantity is increased, and the noise is properly reduced; meanwhile, when the aperture is too large, the structural strength of the air guide rib is poor, and the plastic deformation is easily caused by the influence of hot air, so that the mechanical strength of the finger guard structure can be considered.
Preferably, the finger guard structure is twisted, and the twisting directions of the upper half and the lower half of the finger guard structure using the horizontal central axis of the air outlet grille as a boundary are opposite.
Considering that the airflow blown out by the axial flow fan has a centripetal rotation angle and is not uniform fluid with a consistent direction; when the finger protection structure is arranged in a twisted mode, the twisted angle of the finger protection structure is constantly changed along the length direction of the longitudinal grid, so that the airflow can be guided obliquely along the centripetal angular velocity direction, the noise generated by the impact of the airflow and the air guide surface is avoided as far as possible, and the air outlet resistance loss is reduced.
Preferably, a first twist angle is formed between the twisted surface and the vertical surface of the finger protection structure, and the first twist angle gradually decreases from two ends of the longitudinal grid to the middle position.
When the airflow with the centripetal rotation angle passes through the finger protection structure, the centripetal rotation angle of the airflow is gradually increased from the axis of the finger protection structure to the edge direction, and the first twisting angle is the same as the centripetal angle of the airflow, so that the resistance to the outlet airflow is further reduced.
Preferably, the first twist angles corresponding to the symmetry points of the upper half part and the lower half part of the finger guard structure are equal, and the values of the first twist angles at the two ends are between 10 and 25 degrees. Preferably, the first twist angle is 20 °. Through many times of test optimization, noise and air-out amount of wind can be compromise in this setting, make the wind flow that blows out even.
Preferably, the thickness of the longitudinal grid is H1The height of the convex rib is H2In which H is1＝5.5～12mm、0＜H2≤H1。
In order to avoid unnecessary problems (air volume and noise), the minimum height of the convex ribs and the vertical grids is 5.5-6 mm in consideration of the design height and the structural strength of the original wind guide ribs; and the proposal of each adjacent maximum gap is not more than 7.6mm when the requirement of children test fingers is required to be met according to the item 4.2.2' in the design specification of the plastic panel mesh enclosure of the split outdoor unit. Considering that the air quantity and noise are influenced by overlong ribs, the maximum height of the ribs and the longitudinal grids should not exceed 200% of the minimum height.
Preferably, the gap between the longitudinal grids is L1The gap between the longitudinal grid and the frame is L2Wherein L is2＞L1. Because current air-out grid is at the beginning of the design, its whole size has been stipulated, and the clearance between every grid will satisfy the ann rule requirement, according to selecting light weight principle of keeping away, selects to leave great space in the position between frame and the vertical grid of left and right both sides, and it can hold the size of an adult's finger and has certain potential safety hazard.
Preferably, the air outlet grille forms a fan-shaped air outlet area, and the air outlet angle corresponding to the air outlet area is 5-20 °. Preferably, the air outlet angle is 10 degrees, so that the air beams of the air outlet can be more concentrated.
Compared with the prior art, the air outlet grille has the following beneficial effects: (1) according to the air outlet grille, the finger protection structure is arranged on the inner side of the air outlet grille, so that the phenomenon that fingers stretch into the air outlet grille by mistake is reduced under the condition that the outer side of the air outlet grille is flush, and the use safety is improved; (2) by optimizing the finger protection structure and taking the spiral angle as a whole, the air outlet efficiency, the noise and the mechanical strength can be considered; (3) the shape is beautiful, and the beauty of the public is met; simple structure and convenient production and processing.
The utility model also provides an air conditioner which comprises the air outlet grille. The air conditioner has the same beneficial effects as the air outlet grille, and the description is omitted here.
Drawings
Fig. 1 is a schematic structural view of an air outlet grille according to an embodiment of the present invention;
fig. 2 is another view of the outlet grille according to the embodiment of the present invention;
fig. 3 is a side view of the air outlet grille according to the embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at D;
FIG. 5 is a schematic cross-sectional view taken along the line A-A in FIG. 1;
FIG. 6 is a partial enlarged view taken at a point a in FIG. 5;
FIG. 7 is a schematic cross-sectional view taken along line B-B of FIG. 1;
FIG. 8 is an enlarged view of a portion of FIG. 7 at b;
FIG. 9 is a schematic cross-sectional view taken along the line C-C in FIG. 1;
fig. 10 is a partial enlarged view of fig. 9 at c.
Description of reference numerals:
1-a frame; 2-longitudinal grid; 3-horizontal grid; 4-finger protection structure; 41-convex ribs; 42-air guide holes; 5-assembly holes; 6-clamping piece.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are 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 of the present invention 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, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
An air outlet grille is usually arranged at the position of an air outlet of the outdoor unit, so that the flow of outlet air is guided, and the noise of the air flow is reduced; meanwhile, the possibility that the outside contacts the fan blades inside the fan blades is reduced, such as the possibility that children touch the fan blades by mistake. However, in practical application, the air outlet grille in the square shape has a certain size, and in order to enable the gap between the root ribs to meet the safety requirements, gaps which can accommodate fingers of an adult exist between the baffle plates on the left side and the right side and the adjacent first vertical ribs, and certain potential safety hazards still exist. For this reason, the applicant made the following improvements.
As shown in fig. 1-5, an air outlet grille includes a frame 1, and a vertical grille 2 and a horizontal grille 3, both ends of which are fixed on the frame 1 and are arranged in an intersecting manner, wherein finger protection structures 4 are arranged on the vertical grille 2 and/or the horizontal grille 3 adjacent to the frame 1. The gap between the longitudinal grids 2 positioned on the two sides and the frame 1 can be within a safe distance by the arrangement, the phenomenon that a human hand stretches into the gap by mistake is avoided, and the safety of the air conditioner in the operation process is improved.
Preferably, the finger guard structure 4 includes a plurality of ribs 41 arranged along the longitudinal grid 2, and the ribs 41 are protruded toward one side of the adjacent frame 1 or toward the inner side of the longitudinal grid 2. The arrangement is simple in structure and convenient to produce and process; the shape is beautiful and accords with the aesthetic feeling of the public. As another example of the present invention, the finger guard structure 4 may be a rib 41 disposed obliquely on the vertical grid 2. Preferably, the plurality of ribs 41 are arranged at intervals along the length direction of the longitudinal grid 2 adjacent to the frame 1 to form a wave-shaped or zigzag structure. Preferably, the ribs 41 protrude toward the inner side of the longitudinal grid 2 to form a wave-shaped structure. The finger protection device can achieve the purpose of finger protection under the condition that the height of the grating is equal. As an example of the utility model, the thickness of the finger protection structure 4 is larger in the middle and gradually reduced at the two ends along the length direction of the vertical grid 2.
Preferably, the finger guard structure 4 is arranged along the longitudinal grid 2 in a twisted manner. Preferably, the twisting directions of the upper half part and the lower half part of the finger protection structure 4, which are bounded by the horizontal central axis B-B of the air outlet grille, are opposite. An included angle between the air guide surface and the vertical surface of the finger protection structure 4 is a first twist angle, namely, an included angle between a tangent plane of the air guide surface and the vertical surface. Preferably, the first twist angle decreases from the two ends of the finger guard structure 4 to the middle, and the first twist angle at the middle is 0 °. Preferably, the first twist angle is an acute angle, the airflow with a centripetal rotation angle passes through the air outlet grille, the airflow centripetal angle at a position close to the edge is larger, and the change of the first twist angle is the same as that of the airflow centripetal angle, so that the air outlet resistance and the noise are reduced. The first twist angle at both ends of the finger guard structure 4 is between 10-25 deg., for example 20 deg..
As shown in fig. 6-10, a-a and C-C are positioned symmetrically with respect to a vertical middle axis B-B, a-a in the upper half of the finger guard 4, and form a first twist angle θ with the vertical plane1C-C positioned at the lower half part of the finger-protecting structure 4 and forming a first torsion angle theta with a vertical surface2Then there is theta1＝θ2And the finger guard structure 4 with A-A is twisted to the left, and the finger guard structure 4 with C-C is twisted to the right.
When the wind wheel of the outdoor unit rotates, the axial flow fan rotates to generate centrifugation and transversely throw out airflow, and the airflow is collected by the air guide ring and flows to the air outlet grating; the finger guard structure is arranged in a twisted shape, the twisting angle of the finger guard structure is constantly changed along the length direction of the longitudinal grid 2, the air flow flowing to the air outlet grid can be guided in an inclined mode along the centripetal rotation angular velocity direction, and air outlet resistance and noise are effectively reduced.
Preferably, the air outlet grille forms a fan-shaped air outlet area, and the air outlet angle corresponding to the air outlet area is 5-20 °. The air outlet angle is obtained by testing the critical point of the left and right wind speeds on the horizontal lines of different distances by using the centers of the fan blades at the temperature of 0-25 ℃. Preferably, the air outlet angle is 10 degrees, and the air beams are more concentrated at the time.
The number of the longitudinal grids 2 is multiple and parallel to each other, and the number of the transverse grids 3 is multiple and parallel to each other. Preferably, the gap between the longitudinal grids 2 is L1The gap between the longitudinal grid 2 and the frame 1 is L2Wherein L is2＞L1. For further optimizing the air outlet effect, the rib spacing range of the longitudinal grids 2 and/or the transverse grids 3 is 7-9 mm. This setting can avoid the interval too big and the potential safety hazard appears, avoids causing adverse effect to the air output simultaneously. Aiming at the air outlet areas with different sizes, the whole thickness of the air outlet grille has an optimal interval, if the thickness is too thick, the resistance is increased, and if the thickness is too thin, an ideal air guide effect cannot be obtained. Preferably, the rib thickness H of the longitudinal grids 2 and/or the transverse grids 31The range is 5.5-12 mm. This setting can compromise air-out grid's mechanical strength and wind channel efficiency. The height of the finger protection structure 4 is H2Wherein 0 < H2≤H1. And the air outlet grille is provided with an assembling hole 5. Preferably, the assembling holes 5 are arranged at equal intervals along the peripheral side of the air outlet grille; the inboard of air-out grid still is equipped with joint spare 6, joint spare 6 accomplishes with the cooperation of pilot hole 5 the assembly of air-out grid. This set up simple structure, can compromise the fastening nature, the convenience of assembly.
In order to further improve the performance of the air outlet grille, the applicant improves the structure. The convex rib 41 is provided with an air guide hole 42. The arrangement can relieve the wind speed of the air outlet and increase the wind quantity,and appropriately reduce noise. Preferably, the air guiding holes 42 are circular holes with a diameter D1Wherein 1/4H2≤D1≤1/2*H2. Preferably, D1 ═ 40% H2. This setting can compromise mechanical strength and air-out performance. If the aperture is too big, the structural strength of air guide rib is poor, and it is easier to be influenced by hot wind to cause plastic deformation.
In addition, the utility model also provides an air conditioner which can be a cabinet air conditioner, a wall-mounted air conditioner, a ceiling-mounted air conditioner and the like; for the air conditioner, besides the air outlet grille structure, the air conditioner also includes air conditioner components such as a cross-flow fan blade, a motor, an air duct component, a wind sweeping structure, and the like, and the details of the specific structures and the specific assembly relationships of the related components are the prior art and are not repeated herein.
The finger protection structure 4 is formed by adding a plurality of convex ribs 41 protruding inwards on the longitudinal grilles 2 close to the frame 1, so that the safety problem caused by the fact that fingers stretch into the air conditioner by mistake and contact the fan is avoided under the condition that the heights of the outward side of the air outlet grilles are equal and level; meanwhile, the finger protection structure 4 is designed into a twisted shape, so that a first twisted angle formed between the finger protection structure and a vertical surface is continuously changed, the twisted direction of the upper side is opposite to the twisted direction of the lower side, the air outlet flow can be guided in an inclined mode along the centripetal rotation angular velocity direction, the resistance loss of the air outlet grille is reduced, and meanwhile, the noise of the air outlet flow is reduced.
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 utility model as defined in the appended claims.
Claims (10)
1. The utility model provides an air-out grid, indulges grid (2), horizontal grid (3) including frame (1) and crossing setting, the both ends of indulging grid (2) and/or horizontal grid (3) set firmly frame (1), its characterized in that, it indicates structure (4) to indulge grid (2) setting, it indicates structure (4) to protect to include protruding muscle (41), protruding muscle (41) orientation indulge the inboard protrusion setting of grid (2).
2. An air outlet grille according to claim 1, characterized in that the ribs (41) are arranged in a plurality and form a wave-shaped or zigzag structure at intervals along the length direction of the longitudinal grille (2) arranged adjacent to the frame (1).
3. The air outlet grille according to claim 2, characterized in that the finger guard structure (4) further comprises air guide holes (42) with the same number as the ribs (41), the air guide holes (42) vertically penetrate through the ribs (41), and the diameter of the air guide holes (42) is D1The height of the convex rib (41) is H2Of which 25% is H2≤D1≤50％*H2。
4. Air outlet grille according to any one of claims 1 to 3, characterized in that the finger guard structure (4) is twisted, and the twisting direction of the upper half and the lower half of the finger guard structure (4) bounded by the horizontal middle axis of the air outlet grille is opposite.
5. An air outlet grille according to claim 4, characterized in that the twisted surface of the finger guard structure (4) and the vertical surface form a first twist angle therebetween, and the first twist angle is gradually reduced from the two ends of the longitudinal grille (2) to the middle position.
6. An air outlet grille according to claim 5, characterized in that the corresponding first twist angles of the symmetry points of the upper half part and the lower half part of the finger guard structure (4) are equal, and the values of the first twist angles at the two ends are between 10 ° and 25 °.
7. Air outlet grille according to claim 1, characterized in that the thickness of the longitudinal grille (2) is H1The height of the convex rib (41) is H2In which H is1＝5.5～12mm、0＜H2≤H1。
8. An air-outlet grille according to claim 7, characterized in that the gap between the longitudinal grilles (2) is L1The gap between the longitudinal grid (2) and the frame (1) is L2Wherein L is2＞L1。
9. The air outlet grille of claim 1, wherein the air outlet grille forms a fan-shaped air outlet area, and the air outlet angle of the air outlet area is 5-20 degrees.
10. An air conditioner characterized by comprising the air outlet grille of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121263539.8U CN215523548U (en) | 2021-06-07 | 2021-06-07 | Air outlet grille and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121263539.8U CN215523548U (en) | 2021-06-07 | 2021-06-07 | Air outlet grille and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215523548U true CN215523548U (en) | 2022-01-14 |
Family
ID=79807054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121263539.8U Active CN215523548U (en) | 2021-06-07 | 2021-06-07 | Air outlet grille and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215523548U (en) |
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2021
- 2021-06-07 CN CN202121263539.8U patent/CN215523548U/en active Active
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