CN210511939U - Fan casing and air conditioner - Google Patents
Fan casing and air conditioner Download PDFInfo
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- CN210511939U CN210511939U CN201921452327.7U CN201921452327U CN210511939U CN 210511939 U CN210511939 U CN 210511939U CN 201921452327 U CN201921452327 U CN 201921452327U CN 210511939 U CN210511939 U CN 210511939U
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Abstract
The utility model discloses a fan casing and air conditioner relates to air conditioner technical field, and the fan casing can guide and change the flow direction of air current, has solved the air current that air condensing units produced and can not discharge the installation cavity smoothly, leads to the problem that air conditioner heat transfer ability descends. The fan cover comprises a plurality of radial ribs, the radial ribs are arranged along the radial direction of the fan cover, the radial ribs are arranged at intervals along the circumferential direction of the fan cover, airflow entering the air inlet end of the radial ribs has circumferential components rotating along the circumferential direction of the fan cover, the leeward side of the radial ribs along the circumferential components of the airflow is a first side face, and the middle part of the first side face along the axial direction of the fan cover protrudes towards the leeward side of the radial ribs along the circumferential components of the airflow to form a curved surface; an air conditioner comprises an air conditioner outdoor unit, wherein the air conditioner outdoor unit is provided with an air outlet, and the fan cover is arranged at the air outlet. The utility model discloses a fan casing is used for preventing the foreign matter entering air condensing units.
Description
Technical Field
The utility model relates to an air conditioning technology field especially relates to a fan casing and air conditioner.
Background
An air conditioner is a common heat exchange device, and generally includes an indoor unit and an outdoor unit. The outdoor unit is internally provided with an axial flow fan which is used for enabling the outdoor unit to exchange heat with outside air. The outdoor unit is also provided with an air outlet, a fan cover is arranged at the air outlet and used for dredging air flow and preventing foreign matters from entering the outdoor unit from the air outlet, so that the outdoor unit is protected. The outdoor unit is usually installed outside a building wall, and for safety and good appearance of the wall, an installation cavity for installing the outdoor unit is usually arranged on the outer wall of the wall, and grilles are arranged around the installation cavity and used for dredging airflow. When the air conditioner works, airflow generated by the axial flow fan does not completely flow along the axial direction of the axial flow fan, the air can also rotate around the axial line of the axial flow fan under the action of the fan blades, and the airflow can also diffuse along the radial direction of the axial flow fan under the action of centrifugal force in the rotating process; the airflow flows in a spiral diffusion shape along the axial direction of the axial flow fan.
The prior art provides a fan cover, which comprises a plurality of circumferential ribs and a plurality of radial ribs, wherein the circumferential ribs are arranged along the circumferential direction of the fan cover, and the plurality of circumferential ribs are arranged at intervals along the radial direction of the fan cover; the radial ribs are arranged along the radial direction of the fan cover, and the radial ribs are arranged at intervals along the circumferential direction of the fan cover. The fan cover is mainly used for preventing foreign matters from entering the outdoor unit and playing a role in protecting the outdoor unit of the air conditioner.
However, since the air flow flows in a spiral diffusion manner along the axial direction of the axial fan, after the air flow enters the installation cavity of the outdoor unit of the air conditioner through the fan cover, the air flow is already dispersed and the speed is greatly reduced, and then the air flow is blocked by the grille, so that the air flow cannot be smoothly discharged from the installation cavity, the difference between the temperature in the installation cavity of the outdoor unit of the air conditioner and the outdoor environment temperature is large, the heat exchange between the outdoor unit of the air conditioner and the outside air is further influenced, and the heat exchange capability of the air conditioner is reduced.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a fan casing and air conditioner, the fan casing can guide and change the flow direction of air current, and the air current that has solved air condensing units production can not discharge the installation cavity smoothly, leads to the problem that air conditioner heat transfer ability descends.
In order to achieve the above object, the embodiments of the present invention adopt the following technical solutions:
on the one hand, the embodiment of the utility model provides a fan casing, including a plurality of radial ribs, radial rib is along the radial setting of fan casing, and a plurality of radial ribs are along the circumference interval arrangement of fan casing, and the air current that gets into radial rib air inlet end has along the circumference component of fan casing circumference rotation, and radial rib is first side along the leeward side of the circumference component of air current, and first side forms the curved surface along the axial middle part of fan casing towards the protruding leeward side of radial rib along the circumference component of air current.
The embodiment of the utility model provides a fan casing, including a plurality of radial ribs, every radial rib is along the radial setting of fan casing, and a plurality of radial ribs are arranged along the circumference interval of fan casing, leave the clearance between every two adjacent radial ribs, and the air current can be followed and is passed through in the clearance between the radial rib. The fans of the outdoor unit of the air conditioner are all axial flow fans, the air flow generated by the axial flow fans not only flows along the axial direction of the axial flow fans, but also rotates around the axial line of the axial flow fans and spreads along the radial direction of the axial flow fans, and the whole air flow flows along the axial direction of the axial flow fans in a spiral spreading manner. When the airflow generated by the axial flow fan flows through the fan cover, the airflow entering the air inlet end of the radial ribs has a circumferential component rotating along the circumferential direction of the fan cover. The leeward side of radial rib along the circumference weight of air current is first side, and the one end that radial rib and air current contacted earlier is the air inlet end of radial rib. The air flow entering the air inlet end of the radial ribs has components in multiple directions, wherein the leeward side of the radial ribs is a first side face along the circumferential components of the air flow. The first side face comprises extension along the radial direction of the fan cover and extension along the axial direction of the fan cover, wherein the middle part of the first side face along the axial direction of the fan cover protrudes to the leeward side of the radial ribs along the circumferential component of airflow to form a curved surface. The first side forms the curved surface along the axial middle part protrusion of fan casing, makes the tangential direction of the air inlet end of first side and the tangential direction of air-out end be certain contained angle, and along the axial of fan casing, from radial rib air inlet end to air-out end, the tangential direction of first side and the axial contained angle of fan casing diminish gradually. When the airflow passes through the first side surfaces of the radial ribs, the airflow can be attached to the first side surfaces to flow according to the coanda effect of the fluid. The air current gets into radial rib along the tangential direction of first side air inlet end, flows along first side to from first side air-out end, along the tangential direction outflow circumference rib of first side air-out end, at this in-process, the air current orientation with get into the deflection of the circumference deflection direction opposite direction of the air current of radial rib air inlet end. For example, if the circumferential component of the airflow is a clockwise deflection, the airflow is directed in a counter-clockwise direction after passing through the first side. When the airflow flows out of the radial ribs, the circumferential component of the airflow can be reduced or even eliminated. After the circumferential component of the airflow along the fan cover is reduced, the centrifugal force borne by the airflow is reduced, the radial divergence of the airflow along the fan cover can be reduced, and the airflow can flow more intensively along the axial direction of the fan cover. The air current that axial fan's the axial spiral of edge of axial fan that axial fan produced is dispersed passes through the utility model discloses behind the fan casing, can reduce the air current along deflection and the radial diffusion of fan casing circumference, make the air current can be concentrated more along fan casing axial discharge. Compare in the air current that the spiral disperses, process the utility model discloses air current behind the fan casing guide, the air current reduces along the circumference weight and the radial weight of fan casing, and the air current is concentrated more flows along the axial of fan casing, and the air current velocity of flow is faster, and the amount of wind loss of air current flow in-process is littleer, and the air current is littleer with the grid area of contact of installation cavity, and the air current is discharged from the installation cavity of air condensing units more easily, reaches the purpose of the heat transfer ability of reinforcing air conditioner.
On the other hand, the embodiment of the utility model provides an air conditioner is still provided, including air condensing units, air condensing units is equipped with the air outlet, and air outlet department is equipped with above-mentioned fan casing.
The utility model discloses air conditioner compares in traditional air conditioner, owing to set up foretell fan casing in air condensing units air outlet department, the air condensing units combustion gas is concentrated more along the axial discharge of fan casing, the area of contact of the grid of air current and air condensing units installation cavity when reducing air current discharge air condensing units installation cavity for the air current is discharged from air condensing units's installation cavity more easily, and then promotes the heat transfer ability of air conditioner.
Drawings
Fig. 1 is a front view of a fan cover according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is an enlarged view of a portion B of FIG. 1;
FIG. 4 is a cross-sectional view of the radial ribs C-C of FIG. 3;
fig. 5 is a schematic cross-sectional structure view of the radial ribs according to the embodiment of the present invention when the second side surface is a plane;
fig. 6 is a schematic view of the angle between the axial direction of the fan housing and the direction of the airflow and the angle between the axial direction of the fan housing and the second side surface in fig. 5.
Reference numerals:
1-radial ribs; 11-air inlet end; 12-a first side; 13-air outlet end; 14-a second side; 2-circumferential ribs.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "central", "upper" and "lower" are used herein,
The directional or positional relationships "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are those shown in the drawings for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only 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 one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The coanda effect is also called coanda effect or coanda effect, and specifically means: fluid (water flow or air flow) has a tendency to flow away from the original flow direction and instead follow the convex object surface, and when there is surface friction between the fluid and the object surface over which it flows (which can also be said to be viscosity of the fluid), the fluid will follow the object surface as long as the curvature of the convex surface of the object is not large.
The embodiment of the utility model provides a fan casing, as shown in fig. 1, fig. 2 and fig. 3, including a plurality of radial ribs 1, radial rib 1 is along the radial setting of fan casing, and a plurality of radial ribs 1 are along the circumference interval arrangement of fan casing. Referring to fig. 4, the airflow entering the air inlet end 11 of the radial rib 1 has a circumferential component rotating along the circumferential direction of the fan cover, the leeward side of the radial rib 1 along the circumferential component of the airflow is a first side surface 12, and the middle part of the first side surface 12 along the axial direction of the fan cover protrudes to the leeward side of the circumferential component of the airflow of the radial rib 1 to form a curved surface.
The embodiment of the utility model provides a fan cover, as figure 1, figure 2 and pictureAnd 3, the fan cover comprises a plurality of radial ribs 1, each radial rib 1 is arranged along the radial direction of the fan cover, the radial ribs 1 are arranged along the circumferential direction of the fan cover at intervals, a gap is reserved between every two adjacent radial ribs 1, and air flow can pass through the gap between the radial ribs 1. The fans of the outdoor unit are usually axial flow fans, the axial flow fans generate airflows which, besides flowing along the axial direction of the axial flow fans, also rotate around the axial line of the axial flow fans and diffuse along the radial direction of the axial flow fans, and the airflows flow in a spiral diffusion shape along the axial direction of the axial flow fans as a whole. When the airflow generated by the axial flow fan flows through the fan housing, as shown in fig. 4, the airflow entering the air inlet end 11 of the radial rib 1 has a circumferential component rotating along the circumferential direction of the fan housing. The end of the radial rib 1 which is firstly contacted with the air flow is an air inlet end 11, namely the end of the fan cover close to the axial flow fan is the air inlet end 11. The leeward side of radial rib 1 along the circumference component of air current is first side 12, and the air current that gets into radial rib 1 air inlet end 11 has the component of a plurality of directions, and wherein, along the circumference component of air current, the leeward side of radial rib 1 is first side 12. The first side surface 12 comprises an extension along the radial direction of the fan cover and an extension along the axial direction of the fan cover, wherein the middle part of the first side surface 12 along the axial direction of the fan cover protrudes to the leeward side of the radial rib 1 along the circumferential component of the airflow to form a curved surface. The first side 12 forms a curved surface along the axial middle protrusion of the fan cover, so that the tangential direction of the air inlet end 11 of the first side 12 and the tangential direction of the air outlet end 13 form a certain included angle, and along the axial direction of the fan cover, the tangential direction of the first side 12 and the axial included angle of the fan cover gradually decrease from the air inlet end 11 of the radial rib 1 to the air outlet end 13. When the air flow passes the first side 12 of the radial ribs 1, the air flow will flow attached to the first side 12, depending on the coanda effect of the fluid. Airflow enters the radial ribs 1 along the tangential direction of the air inlet end of the first side face 12, flows along the first side face 12, flows out of the radial ribs 1 along the tangential direction of the air outlet end 13 from the air outlet end 13 of the first side face 12, and deflects in the direction opposite to the circumferential deflection direction of the airflow entering the air inlet end of the radial ribs in the process. For example, if the circumferential component of the airflow is clockwise deflection, the airflow after passing through the first side 12 will be deflected in a counter-clockwise directionThe deflection of the airflow in the clockwise direction is counteracted, thereby reducing the circumferential component of the airflow. After the circumferential component of the airflow along the fan cover is reduced, the centrifugal force borne by the airflow is reduced, the radial divergence of the airflow along the fan cover can be reduced, and the airflow can flow more intensively along the axial direction of the fan cover. The air current that axial fan's the axial spiral of edge of axial fan that axial fan produced is dispersed passes through the utility model discloses behind the fan casing, can reduce the air current along deflection and the radial diffusion of fan casing circumference, make the air current can be concentrated more along fan casing axial discharge. Compared with the airflow which is spirally diffused, the airflow guided by the fan cover of the embodiment of the invention (in fig. 4, arrow (b)2) The direction shown), the air current flow velocity is faster, and the amount of wind loss in the air current flow process is littleer, and the air current is littleer with the grid area of contact of installation cavity, and then, the air current is discharged from the installation cavity of air condensing units more easily, reaches the purpose of reinforcing the heat transfer ability of air conditioner.
The radial direction of the fan cover means: as in fig. 1, the radial direction of the fan case; the circumferential direction of the fan cover means: as in fig. 1, the circumferential direction of the fan cover; the axial direction of the fan cover means a direction indicated by a straight line (a) in fig. 2 and 3. As shown in FIG. 4, the direction of the air flow entering the air inlet end 11 of the radial rib 1 is an arrow (b)1) The directions shown, which can be decomposed into a component in the fan-case axial direction (a), and a component in the fan-case circumferential direction, the component in the fan-case circumferential direction flowing in fig. 4 specifically in the left-to-right direction. As shown in fig. 4, when the circumferential component of the airflow is the airflow flowing along the left-to-right direction, the leeward side of the radial rib 1 is the right side of the radial rib 1, and the windward side is the left side of the radial rib 1; the leeward side of radial rib 1 is the right side of radial rib 1, and the windward side is the left side of radial rib 1. Referring to fig. 1 and 4, the width direction of the radial ribs 1 refers to the extending direction of the radial ribs 1 along the axial direction of the fan cover; the thickness direction of the radial ribs 1 refers to the extension direction of the radial ribs 1 along the circumferential direction of the fan cover; the longitudinal direction of the radial ribs 1 is the direction in which the radial ribs 1 extend in the radial direction of the fan housing. "the middle of the first side 12 in the axial direction of the fan cover" means the firstA middle portion in the width direction of one side surface 12; the "middle part" refers to all parts between the air inlet end 11 and the air outlet end 13, and not only refers to the positions of the geometric centers of the air inlet end 11 and the air outlet end 13.
The direction of the airflow along the circumferential component of the fan cover is related to the rotating direction of the axial flow fan and the shape of the fan blades of the axial flow fan, specifically, the airflow entering the fan cover can be represented as clockwise rotation or anticlockwise rotation from the air inlet end to the air outlet end of the fan cover along the axial direction of the fan cover; that is, as shown in FIG. 1, the component of the airflow in the circumferential direction may appear as a clockwise rotation or a counterclockwise rotation. In the embodiment of the present invention, the circumferential component of the airflow entering the air inlet end of the fan cover is taken as the flow of the airflow along the counterclockwise direction as an example for explanation; when the circumferential component of the air flow entering the air inlet end of the fan cover flows along the clockwise direction, the air flow can be reasonably inferred on the basis of the specification of the application.
Tangential direction of air inlet end 11 of first side 12 (in fig. 4, dotted line c)1The direction shown) and the direction of the air flow entering the air inlet end 11 of the radial rib 1 (arrow b in fig. 4)1The directions shown) are parallel; tangential direction of air outlet end 13 of first side surface 12 (in fig. 4, dotted line c)2The direction shown) is parallel to the axial direction (a) of the fan cover. Referring to fig. 4, the tangential direction of the air inlet end 11 of the first side surface 12 is parallel to the air flow direction entering the air inlet end 11 of the radial rib 1, so that the resistance of the air inlet end 11 of the radial rib 1 to the air flow when the air flow enters the radial rib 1 can be reduced, and the air volume and the energy loss when the air flow passes through the air outlet end 11 of the radial rib 1 are reduced. The tangential direction of the air outlet end 13 of the first side surface 12 is parallel to the axial direction of the fan cover, so that the airflow direction guided by the radial ribs 1 is parallel to the axial direction of the fan cover, the rotation of the airflow along the circumferential direction of the fan cover is reduced to the maximum extent after the airflow is discharged from the air outlet end 13 of the first side surface 12, and the airflow is discharged from the mounting cavity of the air conditioner outdoor unit more easily, so that the heat exchange capacity of the air conditioner is enhanced.
Example one
The fan cover of the embodiment of the utility model, as shown in fig. 4, the windward side of the radial rib 1 along the circumferential component of the air current is the second side14, the second side surface 14 is concave along the axial middle part of the fan cover towards the direction far away from the center of the fan cover to form a curved surface. Similar to the first side 12, the second side 14 has a tangential direction of the air inlet end 11 (in fig. 4, dotted line c)3The direction shown) and the tangential direction of the air outlet end 13 (in fig. 4, the dotted line c)4The direction shown) is a certain included angle, and along the axial direction of the fan cover, the included angle between the tangential direction of the second side surface 14 and the axial direction of the fan cover gradually becomes smaller from the air inlet end 11 to the air outlet end 13 of the radial rib 1. When the air flow passes the second side 14 of the radial rib 1, the second side 14 may guide the air flow to deflect in the opposite direction to the direction of the air flow when it enters the air inlet end 11 of the radial rib 1, so as to reduce or even eliminate the circumferential component of the air flow. The first side surface 12 and the second side surface 14 cooperate to make the airflow more intensively flow along the axial direction of the fan housing, so that the airflow is easier to discharge from the mounting cavity of the outdoor unit of the air conditioner, and the heat exchange capability of the air conditioner is enhanced.
It should be noted that the principle of the change of the airflow direction guided by the first side 12 and the second side 14 is different; the first side 12 uses the coanda effect of the fluid to direct the flow of the air, and the second side 14 uses the air channel formed by the second side 14 itself to direct the flow of the air. The first side 12 and the second side 14 guide the flowing direction of the airflow together, so that the deflection of the airflow along the circumferential direction of the fan cover is reduced, and the airflow flows along the axial direction of the fan cover to the maximum extent.
In order to reduce the resistance of the second side surface 14 to the airflow, the tangential direction of the air inlet end 11 of the second side surface 14 is parallel to the airflow direction entering the air inlet end 11 of the radial rib 1. Meanwhile, in order to enable the air flow guided by the second side surface 14 to flow along the axial direction of the fan cover, the tangential direction of the air outlet end 13 of the second side surface 14 is parallel to the axial direction of the fan cover. The first side surface 12 guides the direction of the airflow to change by utilizing the coanda effect of the fluid, the resistance effect of the first side surface 12 on the airflow is smaller, the second side surface 14 guides the direction of the airflow to deflect by utilizing the formed air channel, and the resistance effect on the airflow is larger, so that when the airflow entering the air inlet end 11 of the radial rib 1 deflects along the circumferential direction of the fan cover more, in order to reduce the resistance of the second side surface 14 of the radial rib 1 on the airflow, the tangential direction of the air outlet end 13 of the second side surface 14 and the axial direction of the fan cover can also form a certain included angle.
Example two
The utility model discloses fan casing, as shown in FIG. 5, radial rib 1 is second side 14 along the windward side of the circumference weight of air current, and second side 14 is the plane along the axial of fan casing. It should be understood that "the second side 14 is a plane along the axial direction of the fan cover" specifically means that, as shown in fig. 5, the second side 14 extends along a straight line in the axial direction of the fan cover; the second side 14 itself has an extension in the radial direction of the fan housing and an extension in the axial direction of the fan housing, the second side 14 being planar as seen in the axial direction of the fan housing. Compared with the first embodiment, the second side surface 14 is concave towards the leeward side of the radial rib 1 along the circumferential component of the airflow along the axial middle part of the fan cover to form a curved surface, and the second side surface 14 extends along a curve in the axial direction of the fan cover. The utility model discloses fan casing, second side 14 are the straight line along fan casing's axial extending direction, simple structure, low in manufacturing cost.
When the second side surface 14 is a plane along the axial direction of the fan cover, as shown in fig. 5 and fig. 6, the second side surface 14 forms an included angle α with the axial line of the fan cover, and the airflow direction entering the air inlet end 11 of the radial rib 1 forms an included angle β with the axial direction of the fan cover, wherein α is equal to or less than β, when α is less than β, the second side surface 14 guides and changes the airflow direction, at this time, the airflow deflects in the direction opposite to the airflow circumferential component direction from the air inlet end 11 to the air outlet end 13 of the radial rib 1, the deflection angle of the airflow is equal to the included angle between the second side surface 14 and the axial direction of the fan cover, that is, (β - α), when α is equal to β, the extending direction of the second side surface 14 is the same as the direction when the airflow enters the air inlet end 11 of the radial rib 1, the second side surface 14 cannot guide the airflow to deflect in the direction opposite to the airflow circumferential component direction, at this time, the second side surface 14 has a smaller guiding effect on the airflow, and is suitable for the case that the circumferential component of the airflow entering the radial.
It should be noted that the reason why the second side 14 is not directly disposed in the axial direction of the fan cover is to reduce the resistance of the second side 14 to the airflow. If the extending direction of the second side surface 14 is set to be the same as the axial direction of the fan housing, although the air flow can be made to flow in the axial direction of the fan housing to the maximum extent. However, when the component of the airflow entering the air inlet end 11 of the radial rib 1 along the circumferential direction of the fan cover is large, the included angle between the airflow entering the radial rib 1 and the second side surface 14 is large, the resistance of the second side surface 14 to the airflow is large, the speed of the airflow is affected, and the airflow is not beneficial to being discharged from the outdoor unit. Therefore, the size of the included angle between the second side surface 14 and the axis of the fan cover needs to be specifically adjusted according to the size of the circumferential component of the airflow rotating along the circumferential direction of the fan cover.
Because the air current that gets into the fan casing has along the rotatory circumference weight of fan casing circumference, in order to reduce the resistance of radial rib to the air current, radial rib 1 sets up along the radial bending of fan casing, and from the one end that is close to the fan casing axis to the one end of keeping away from the fan casing axis, radial rib 1 is crooked to the leeward side of the circumference weight of the air current that gets into radial rib 1 air inlet end 11. At this time, the bending direction of the radial ribs 1 is consistent with the spiral direction when the airflow enters the fan cover, so that the resistance of the radial ribs 1 to the airflow can be reduced. As shown in fig. 1, when the component of the airflow entering the fan housing in the circumferential direction of the fan housing is the rotation of the airflow in the counterclockwise direction, the radial ribs 1 are bent in the counterclockwise direction from the end close to the axis of the fan housing to the end away from the axis of the fan housing. Similarly, when the component of the airflow entering the fan cover along the circumferential direction of the fan cover is the rotation of the airflow along the clockwise direction, the radial ribs 1 are bent along the clockwise direction from one end close to the axis of the fan cover to one end far away from the axis of the fan cover.
Referring to fig. 4, the thickness of the radial ribs 1 gradually increases from the air inlet end 11 to the air outlet end 13 of the radial ribs 1. The thickness of the air inlet end 11 of the radial rib 1 is smaller so as to reduce the resistance of the air inlet end 11 of the radial rib 1 to airflow; the thickness of the air-out end 13 of radial rib 1 is great, on the one hand, can strengthen the structural strength of radial rib 1, and on the other hand, the air-out end 13 of radial rib 1 is installed outwards, increases the thickness that the air-out end 13 of radial rib 1 can passivate the air-out end 13 of radial rib 1, and when installing and changing the fan casing, can prevent that the fan casing from incising the human body.
The utility model discloses fan casing, as shown in FIG. 1, still include a plurality of circumference ribs 2, every circumference rib 2 all sets up along fan casing's circumference, and a plurality of circumference ribs 2 along fan casing's radial interval arrangement, leaves the clearance between every two adjacent circumference ribs 2 to make the air current pass in can following fan casing's clearance. The circumferential ribs 2 and the radial ribs 1 are mutually crossed, and the circumferential ribs 2 and the radial ribs 1 form a net structure, so that sundries can be prevented from penetrating through the fan cover and entering the outdoor unit of the air conditioner.
It should be noted that the radial ribs 1 and the circumferential ribs 2 are formed by injection molding, and compared with a metal material, the plastic material has lower cost; and because the surface of radial rib 1 is the curved surface, the processing and manufacturing difficulty of the injection molding processing mode is lower. It should be noted that injection molding only provides a relatively simple and low-cost processing method, and the fan cover manufactured by other technical schemes also belongs to the protection scope of the present invention.
On the other hand, the utility model also provides an air conditioner, including air condensing units, the last air outlet that is equipped with of air condensing units, air outlet department is equipped with foretell fan casing.
The utility model discloses the air conditioner compares in traditional air conditioner, because set up foretell fan casing in air condensing units air outlet department, the air condensing units combustion gas is concentrated more along the axial discharge of fan casing, and then reduce the energy and the air loss of the air current flow in-process, and when reducing the installation cavity of air current discharge air condensing units, the area of contact of the air current and the grid of the installation cavity of air condensing units, make the air current discharge in the installation cavity of air condensing units more easily, and then promote the heat transfer ability of air conditioner.
In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a fan casing, includes a plurality of radial ribs, radial rib follows the radial setting of fan casing, it is a plurality of radial rib follows the circumference interval arrangement of fan casing, its characterized in that gets into the air current of radial rib air inlet end has along the rotatory circumference weight of fan casing circumference, follows the circumference weight of air current the leeward side of radial rib is first side, first side is followed the axial middle part of fan casing to radial rib follows the leeward side protrusion of the circumference weight of air current forms the curved surface.
2. The fan cover of claim 1, wherein the tangential direction of the first side air intake end is parallel to the direction of airflow into the radial rib air intake end; the tangential direction of the air outlet end of the first side surface is parallel to the axial direction of the fan cover.
3. The fan cover according to claim 1, wherein a windward side of the radial rib along the circumferential component of the airflow is a second side surface, and a middle portion of the second side surface in the axial direction of the fan cover is recessed toward a leeward side of the radial rib along the circumferential component of the airflow to form a curved surface.
4. The fan cover according to claim 3, wherein a tangential direction of the air inlet end of the second side surface is parallel to an airflow direction entering the air inlet end of the radial rib, and a tangential direction of the air outlet end of the second side surface is parallel to an axial direction of the fan cover.
5. The fan cover according to claim 1, wherein a windward side of the radial ribs in a circumferential component of the airflow is a second side, and the second side is a plane in an axial direction of the fan cover.
6. The fan cover according to claim 5, wherein an included angle α is formed between the second side face and the axis of the fan cover, and the direction of the airflow entering the air inlet end of the radial rib forms an included angle β with the axial direction of the fan cover, wherein α is equal to or less than β.
7. The fan cover according to any one of claims 1 to 6, wherein the radial ribs are provided in a curved manner in a radial direction of the fan cover, and the radial ribs are curved toward a leeward side of the radial ribs in a circumferential component of the airflow from an end close to a center of the fan cover to an end far from the center of the fan cover.
8. The fan cover according to claim 7, wherein the radial ribs gradually increase in thickness from the air inlet end of the radial ribs to the air outlet end of the radial ribs.
9. The fan cover according to any one of claims 1 to 6, further comprising a plurality of circumferential ribs, the circumferential ribs being arranged along a circumferential direction of the fan cover, and the plurality of circumferential ribs being arranged at intervals along a radial direction of the fan cover, the circumferential ribs and the radial ribs intersecting each other, and the circumferential ribs and the radial ribs forming a mesh structure.
10. An air conditioner comprising an outdoor unit of the air conditioner, the outdoor unit of the air conditioner having an air outlet, wherein the fan cover of any one of claims 1 to 9 is provided at the air outlet.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921452327.7U CN210511939U (en) | 2019-08-30 | 2019-08-30 | Fan casing and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921452327.7U CN210511939U (en) | 2019-08-30 | 2019-08-30 | Fan casing and air conditioner |
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| CN210511939U true CN210511939U (en) | 2020-05-12 |
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| CN (1) | CN210511939U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425646A (en) * | 2019-08-30 | 2019-11-08 | 海信（广东）空调有限公司 | A kind of fan guard and air-conditioning |
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- 2019-08-30 CN CN201921452327.7U patent/CN210511939U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425646A (en) * | 2019-08-30 | 2019-11-08 | 海信（广东）空调有限公司 | A kind of fan guard and air-conditioning |
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