Waterproof grilles for air conditioning equipment and air conditioning equipment

Abstract

This invention provides a waterproof grille for an air conditioning unit and the air conditioning unit itself. The waterproof grille is installed between the evaporator and the fan of the air conditioning unit and includes a top plate, a bottom plate, and a first air guide grille and a second air guide grille fixed between the top plate and the bottom plate. The first and second air guide grilles are respectively arranged on both sides of the waterproof grille in the thickness direction Y. Multiple first air guide grilles and multiple second air guide grilles are evenly distributed alternately in the length direction X of the waterproof grille. An air inlet opening is formed between adjacent first air guide grilles, and an air outlet opening is formed between adjacent second air guide grilles. The orientation of the air inlet and outlet openings is symmetrical with respect to the length direction X. In the thickness direction Y, the projection range of adjacent first and second air guide grilles covers the air inlet opening. The solution of this invention can reduce the risk of water blowing during the operation of the air conditioning unit with minimal impact on the airflow.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and more particularly to a waterproof grille for an air conditioning device and an air conditioning device. Background Technology

[0002] When air passes through the duct, the air conditioning unit absorbs heat from the air through the low-temperature refrigerant in the evaporator, thereby lowering the air temperature and enabling the fan to expel cold air.

[0003] During the cooling process, condensation forms on the surface of the evaporator in air conditioning equipment. In high-volume airflow modes, this condensation is easily blown away from the evaporator by the high-speed airflow. These water droplets blown away can damage internal electrical components and wiring, or cause metal parts to rust and corrode. Furthermore, the condensation blown out through the air outlets can flow into the environment, causing pollution or corrosion in indoor spaces.

[0004] The water-proof structures in existing air conditioning equipment are usually baffles or filters such as hydrophobic membranes. Although they can achieve a certain water-proof function, they will seriously block the air duct and cause a large loss of air volume. Summary of the Invention

[0005] This invention provides a waterproof grille for an air conditioning unit and an air conditioning unit to solve the defect in the prior art where condensate on the evaporator surface is blown away by the air and easily affects electrically connected components, thereby reducing the risk of water blowing during the operation of the air conditioning unit while having a small impact on the airflow of the air conditioning unit.

[0006] This invention provides a waterproof grille for an air conditioning unit, used to be installed between the evaporator and the fan of the air conditioning unit. It includes a top plate, a bottom plate, and a first air guide grille and a second air guide grille fixed between the top plate and the bottom plate. The first and second air guide grilles are respectively arranged on both sides close to the thickness direction Y of the waterproof grille. A plurality of first air guide grilles and a plurality of second air guide grilles are alternately and evenly distributed along the length direction X of the waterproof grille. An air inlet opening is formed between adjacent first air guide grilles, and an air outlet opening is formed between adjacent second air guide grilles. The orientation of the air inlet opening and the air outlet opening is symmetrical with respect to the length direction X. Along the thickness direction Y, the projection range of adjacent first and second air guide grilles covers the air inlet opening.

[0007] According to the present invention, a waterproof grille for an air conditioning device has the following characteristics: on a plane perpendicular to the first and second air guide grilles, the cross-sectional shapes of the first and second air guide grilles are arc-shaped; in the length direction X, the arc surfaces of the first and second air guide grilles face the same direction; in the thickness direction Y, the outer arc surface of the first air guide grille blocks at least half of the air inlet opening, and the inner arc surface of the second air guide grille blocks at least the other half of the air inlet opening.

[0008] According to the present invention, the surface of the outer arc surface of the first air guide grille and / or the inner arc surface of the second air guide grille is a corrugated surface.

[0009] According to the present invention, a waterproof grille for an air conditioning device has the same width in the thickness direction Y, and the first projected lengths of the first air guide grille and the second air guide grille are the same; the width of the grille is greater than the first projected length, which is greater than half of the width of the grille.

[0010] According to the present invention, a waterproof grille for an air conditioning device has the same second projected length for the first air guide grille and the second air guide grille in the length direction X, and the same opening size for the air inlet and the air outlet; the opening size is greater than or equal to half of the second projected length.

[0011] According to the present invention, a waterproof grille for an air conditioning device is provided in which, in the state of use, the top plate is located above the direction of gravity and the bottom plate is located below the direction of gravity; the bottom plate is provided with an elongated hole extending along the length direction X.

[0012] The present invention also provides an air conditioning device, wherein an evaporator, a waterproof grille and a fan are provided in the air duct of the air conditioning device, and the waterproof grille is any of the waterproof grilles of the above-mentioned air conditioning devices; when the fan is working, air passes through the evaporator and the waterproof grille in sequence, and is finally discharged from the air conditioning device by the fan.

[0013] According to an air conditioning device provided by the present invention, a bracket for installing the waterproof grille is provided in the air duct, and the bracket has a mounting groove defining the position of the waterproof grille in the thickness direction Y.

[0014] According to an air conditioning device provided by the present invention, the bracket includes a bottom bracket, the bottom bracket including a bearing surface, a water collection groove recessed relative to the bearing surface, and limiting plates extending upward on both sides of the bearing surface in the width direction; the limiting plates and the bearing surface form the mounting groove.

[0015] According to an air conditioning device provided by the present invention, a plurality of water passage holes are evenly distributed at the bottom of the water collection tank, and the water collection tank is connected to the condensate collection pan of the air conditioning device through the water passage holes.

[0016] This invention provides a waterproof grille for an air conditioning unit and the air conditioning unit itself. The waterproof grille of the air conditioning unit forms air inlet and outlet openings that are staggered on both sides of the thickness direction Y by the alternating arrangement of a first air guide grille and a second air guide grille. Since the projections of the first and second air guide grilles on the thickness direction Y can cover the air inlet openings, when air flows from the air inlet openings to the air outlet openings, water droplets in the flowing air, due to their large volume and mass, have relatively large inertia and their movement trajectory is not easily deflected. They will adhere to the surfaces of the first and second air guide grilles, accumulate into droplets, and drip down along the first or second air guide grille, instead of being blown over the waterproof grille by the airflow.

[0017] During this process, the waterproof grille only creates a short-range turbulence effect on the flowing air in the thickness direction Y, without significantly altering the airflow direction or affecting the duct's throughput. Therefore, applying this waterproof grille to air conditioning equipment can reduce the risk of water blowing during operation and improve the safety of the air conditioning system while minimizing its impact on airflow. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the waterproof grille of the air conditioning equipment provided by the present invention;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the waterproof grille of the air conditioning equipment provided by the present invention;

[0021] Figure 3 yes Figure 2 A partial enlarged view of the waterproof grille of the air conditioning equipment shown;

[0022] Figure 4 This is one of the partial structural schematic diagrams of the air conditioning equipment provided by the present invention;

[0023] Figure 5 This is a second partial structural schematic diagram of the air conditioning equipment provided by the present invention;

[0024] Figure 6This is a schematic diagram of the bottom support structure of the air conditioning equipment provided by the present invention.

[0025] Figure label:

[0026] Top plate 101; bottom plate 102; first air guide grille 111; second air guide grille 112; air inlet opening 121; air outlet opening 122; evaporator 201; fan 202; mounting groove 203; bottom bracket 210; bearing surface 211; water collection tank 212; limiting plate 213; water passage hole 214. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0028] During the cooling process, condensation will form on the surface of the evaporator in air conditioning equipment. Under high airflow conditions, the condensation will be blown out of the evaporator's heat-conducting fins by the high-speed airflow. Condensation splatter is a significant quality issue for air conditioning products. Uncontrollable splatter can damage internal electrical components and wiring, or cause rust and corrosion of metal parts. Furthermore, water blown out of the air outlet can flow outside the air duct, causing pollution or corrosion to the user's installation site and building surfaces.

[0029] This invention aims to provide a novel anti-spraying solution, which includes a waterproof grille for air conditioning equipment and an air conditioning equipment with the waterproof grille installed. This solution can effectively prevent condensate from splashing onto the evaporator. At the same time, compared with traditional baffles and water filtration mechanisms, the waterproof grille of this solution has less impact on the airflow of the air conditioning equipment.

[0030] The following is combined with Figures 1-6 A waterproof grille and an air conditioning device according to a preferred embodiment of the present invention are described.

[0031] like Figure 1 As shown, the waterproof grille of the air conditioning equipment includes a top plate 101, a bottom plate 102, a first air guide grille 111, and a second air guide grille 112. The top plate 101 and the bottom plate 102 are used to fix the first air guide grille 111 and the second air guide grille 112 between the top plate 101 and the bottom plate 102.

[0032] like Figure 2 and Figure 3As shown, multiple first air guide grilles 111 are evenly distributed along the length X of the waterproof grille, forming air inlet openings 121 between adjacent first air guide grilles 111; multiple second air guide grilles 112 are evenly distributed along the length of the waterproof grille, and are staggered and alternately arranged with the first air guide grilles 111, forming air outlet openings 122 between adjacent second air guide grilles 112. It is understood that the terms "first," "second," etc., in this invention are only used for ease of understanding of the technical solution and do not limit the scope of protection of this invention. In practical applications, the component names corresponding to the terms "first," "second," etc., can be interchanged, and correspondingly, the air inlet openings 121 and air outlet openings 122 can be determined according to the actual airflow direction in actual use.

[0033] The first air guide grille 111 and the second air guide grille 112 are preferably arc-shaped plates with the same shape and symmetrically offset orientation. The offset symmetry mentioned here means that the first air guide grille 111 and the second air guide grille 112 are alternately and offset in the length direction X, and the sway angle of any first air guide grille 111 and any second air guide grille 112 is symmetrical with respect to the length direction X.

[0034] like Figure 3 As shown, when air enters the air inlet 121 along the thickness direction Y, the outer arc surface of the first air guide grating 111 creates an arc-shaped guiding turbulence effect on a portion of the air, causing water droplets in the air to adhere to the outer arc surface of the first air guide grating 111 due to inertia. Simultaneously, the inner arc surface of the second air guide grating 112 also creates an arc-shaped guiding turbulence effect on the air, causing water droplets in the air to adhere to the inner arc surface of the second air guide grating 112 due to inertia. The air is only turbulented by the first and second air guide gratings 111 and 112 during its movement from the air inlet 121 to the air outlet 122, while the air exiting from the air outlet 122 continues to move in its original direction, having minimal impact on airflow and velocity. Therefore, the waterproof grille of the air conditioning equipment can reduce the risk of water blowing into the air passing through the waterproof grille with minimal impact on airflow.

[0035] like Figure 4 and Figure 5As shown, the waterproof grille of the air conditioning unit is installed inside the air conditioner, behind the air outlet surface of the evaporator 201. During the operation of the air conditioning unit in cooling mode, the fan 202 causes air to flow along the air duct. The high-speed air containing water blown out from the evaporator 201 passes through the waterproof grille. Due to the staggered arrangement of the first air guide grille 111 and the second air guide grille 112, the air is guided by the arc of the grille surface and blown out from the rear of the waterproof grille. The water droplets contained therein, due to their large volume and mass, also have relatively large inertia. When they encounter the guidance of the first air guide grille 111 and the second air guide grille 112, their trajectory is not easily deflected. They collide with and adhere to the surfaces of the first air guide grille 111 and the second air guide grille 112, accumulating into droplets and dripping down along the first air guide grille 111 and the second air guide grille 112. They are not easily blown to one side of the fan 202 by the air supply. This reduces the risk of water blowing during the operation of the air conditioning unit with minimal impact on the air volume, thereby improving the safety of the air conditioning unit.

[0036] To better understand the above technical solutions, the waterproof grille of the air conditioning equipment and various specific embodiments of the air conditioning equipment of the present invention will be described in detail below with reference to the accompanying drawings.

[0037] This invention provides a waterproof grille for air conditioning equipment, used for installation between the evaporator and the fan of the air conditioning equipment. Figure 1 , Figure 2 and Figure 3 As shown, the structure includes a top plate 101, a bottom plate 102, and a first air guide grille 111 and a second air guide grille 112 fixed between the top plate 101 and the bottom plate 102. The first air guide grille 111 and the second air guide grille 112 are respectively arranged close to both sides of the waterproof grille in the thickness direction Y; a plurality of first air guide grilles 111 and a plurality of second air guide grilles 112 are alternately and evenly distributed in the length direction X of the waterproof grille; an air inlet opening 121 is formed between adjacent first air guide grilles 111, and an air outlet opening 122 is formed between adjacent second air guide grilles 112, the orientation of the air inlet opening 121 and the air outlet opening 122 are symmetrical with respect to the length direction X; in the thickness direction Y, the projected area of ​​adjacent first air guide grilles 111 and second air guide grilles 112 covers the air inlet opening 121, so as to fully remove water droplets carried in the air when the air flows.

[0038] The waterproof grille of this air conditioning unit, through the staggered arrangement of the first air guide grille 111 and the second air guide grille 112, forms air inlet openings 121 and air outlet openings 122 staggered on both sides of the thickness direction Y of the waterproof grille. Since the projections of the first air guide grille 111 and the second air guide grille 112 in the thickness direction Y can cover the air inlet opening 121, when air flows from the air inlet opening 121 to the air outlet opening 122, water droplets in the flowing air, due to their large volume and mass, have relatively large inertia and their trajectory is not easily deflected. They adhere to the surfaces of the first air guide grille 111 and the second air guide grille 112, accumulating into droplets and dripping along the first air guide grille 111 or the second air guide grille 112, without being blown across the waterproof grille by the airflow. In this process, the waterproof grille only provides a short-stroke turbulence effect on the flowing air in the thickness direction Y, without significantly changing the airflow direction or affecting the airflow rate of the duct. Therefore, applying this waterproof grille to air conditioning equipment can reduce the risk of water blowing during the operation of the air conditioning equipment and improve the safety of the air conditioning equipment while having little impact on the airflow.

[0039] The first air guide grille 111 and the second air guide grille 112 can be inclined planar plate-like members or partially inclined bent plate-like members, preferably as shown in the figure. Figure 1 , Figure 2 and Figure 3 The arc-shaped plate shown.

[0040] A waterproof grille for an air conditioning device according to the present invention, such as Figure 2 and Figure 3 As shown, in a plane perpendicular to the first air guide grille 111 and the second air guide grille 112, the cross-sectional shape of the first air guide grille 111 and the second air guide grille 112 is arc-shaped. Compared with other air guiding shapes, arc-shaped air guides have less resistance to airflow, and while preventing water from blowing away, they have less impact on the airflow of the air conditioning equipment. Preferably, in the length direction X, the arc surfaces of the first air guide grille 111 and the second air guide grille 112 face the same direction; in the thickness direction Y, the outer arc surface of the first air guide grille 111 blocks at least half of the air inlet opening 121, and the inner arc surface of the second air guide grille 112 blocks at least the other half of the air inlet opening 121. According to this arrangement, the air entering from the air inlet opening 121 will be guided by the outer arc surface of the first air guide grille 111 or the inner arc surface of the second air guide grille 112 during flow, thereby fully adsorbing water droplets in the air and preventing water droplets, especially those with greater inertia, from passing through the waterproof grille.

[0041] According to the present invention, a waterproof grille for an air conditioning device, based on the aforementioned arc-shaped design, has a corrugated surface on the outer arc surface of the first air guide grille 111 and / or the inner arc surface of the second air guide grille 112. The surface corrugation prevents water droplets from being blown away from the waterproof grille by airflow and falling to the other side of the waterproof grille when they adhere to the outer arc surface of the first air guide grille 111 and / or the inner arc surface of the second air guide grille 112. Furthermore, after water droplets accumulate, the corrugated shape extending along the length of the air guide grille guides the droplets, causing them to move downwards along the corrugations under gravity. To ensure the waterproof grille functions effectively on both sides of the thickness direction Y, both the inner and outer arc surfaces of the first air guide grille 111 and the second air guide grille 112 can be corrugated surfaces.

[0042] In a preferred embodiment, the corrugated surface can be a water groove formed on the outer arc surface of the first air guide 111 and / or the inner arc surface of the second air guide 112, or it can be a ridge on the outer arc surface of the first air guide 111 and / or the inner arc surface of the second air guide 112. The length direction of the water groove or ridge is consistent with the length direction of the air guide 111, and multiple water grooves or ridges are evenly distributed on the outer arc surface of the first air guide 111 and / or the inner arc surface of the second air guide 112.

[0043] According to the present invention, a waterproof grille for an air conditioning device has the same width in the thickness direction Y for the top plate 101 and the bottom plate 102, and the first projected lengths of the first air guide grille 111 and the second air guide grille 112 are the same; the width of the grille is greater than the first projected length, which is greater than half the width of the grille. According to this solution, as... Figure 3 As shown, the first projected length refers to the lengths of the first air guide grille 111 and the second air guide grille 112 in the thickness direction Y of the waterproof grille. Since the width of the plate is greater than half the width of the first projected length, when the first air guide grille 111 and the second air guide grille 112 are alternately distributed, a portion of the first air guide grille 111 is located between two adjacent second air guide grilles 112, and similarly, a portion of the second air guide grille 112 is located between two adjacent first air guide grilles 111. As a result, after the air enters the air inlet opening 121, it will be divided into two streams by the second air guide grille 112, increasing the contact area between the air and the air guide grille structure.

[0044] According to the present invention, a waterproof grille for an air conditioning device has the same second projected length for the first air guide grille 111 and the second air guide grille 112 in the length direction X, and the same opening size for the air inlet opening 121 and the air outlet opening 122; the opening size is greater than or equal to half the second projected length. The second projected length refers to the dimensions of the first air guide grille 111 and the second air guide grille 112 in the length direction X of the waterproof grille. Because the opening size is greater than or equal to half the second projected length, the turbulence on the airflow is reduced during air passage, and the first air guide grille 111 and the second air guide grille 112 can guide the flowing air respectively.

[0045] like Figure 2 and Figure 3 As shown, the waterproof grille of the present invention consists of a top plate 101, a bottom plate 102, and two rows of arc-shaped first air guide grilles 111 and second air guide grilles 112 connected in the middle. All the arc surfaces of the first air guide grilles 111 and second air guide grilles 112 face the same direction. The starting positions of the two rows of air guide grilles are respectively aligned with the two sides of the width direction of the bottom plate 102. A perpendicular line segment is drawn from the ending position to the side where the starting point is located. 1 / 2 of the bottom plate width < the length of the perpendicular line segment < the bottom plate width. The two rows of air guide grilles are staggered. A perpendicular line is drawn from the starting point and the ending point of the air guide grilles to the long side of the bottom plate 102. The perpendicular line segment passing through the starting point of each air guide grille is located between the perpendicular line segments drawn by the adjacent opposing air guide grilles from the starting point and the ending point. The projections of the opposing air guide grilles on the length direction X overlap with each other.

[0046] In a preferred embodiment, the cross-section of the first air guide grille 111 and the second air guide grille 112 of the aforementioned waterproof grille is arc-shaped, and the centers of the circles determined by the arcs of the multiple first air guide grilles 111 and the second air guide grilles 112 are all located on the same straight line along the length direction X, so that the arc surfaces between adjacent first air guide grilles 111 and the second air guide grilles 112 are arranged in parallel, so as to reduce the impact on air circulation while guiding and turbulent airflow in an arc.

[0047] According to the present invention, a waterproof grille for an air conditioning device, in its operational state, has a top plate 101 positioned above the direction of gravity and a bottom plate 102 positioned below the direction of gravity; the bottom plate 102 is provided with an elongated hole extending along the length direction X. Water droplets in the air collect on the first air guide grille 111 and the second air guide grille 112. Under the influence of gravity, the water droplets slide downwards along the first air guide grille 111 and the second air guide grille 112, and through the elongated hole in the bottom plate 102, can be used to drain the condensate flowing onto the bottom plate 102. In practical applications, this is connected to the drainage mechanism of the air conditioning device, such as a condensate collection pan or drain pipe.

[0048] The air conditioning equipment provided by the present invention is described below. The waterproof grille of the air conditioning equipment described below and the air conditioning equipment described above can be referred to in correspondence.

[0049] The present invention also provides an air conditioning device, such as... Figure 4 As shown, the air duct of the air conditioning equipment is equipped with an evaporator 201, a waterproof grille, and a fan 202. The waterproof grille is any of the waterproof grilles of the aforementioned air conditioning equipment. When the fan is working, the air passes through the evaporator and the waterproof grille in sequence, and is finally discharged from the air conditioning equipment by the fan.

[0050] As air moves along the duct, water droplets in the flowing air, due to their large size and mass, have relatively high inertia and their trajectory is not easily deflected. They adhere to the surfaces of the first and second air guide grilles 111 and 112 of the waterproof grille, accumulating into droplets that fall along either grille without being blown over by the airflow. In this process, the waterproof grille only creates a short-range turbulence in the thickness direction Y, without significantly altering the airflow direction or affecting the duct's throughput. Therefore, this air conditioning unit can reduce the risk of water blowing during operation and improve the safety of its use with minimal impact on airflow.

[0051] like Figure 4 As shown, the water-blocking grille is located between the evaporator 201 and the fan 202. When the air conditioning equipment is operating in cooling mode, air is drawn in from the evaporator 201 and blown out from the fan 202 under the drive of the fan 202. After being cooled by the evaporator 201, the water vapor carried in the air condenses upon contact with the cold air and is carried out from the back of the evaporator 201 by the high-speed wind. When the wind containing water droplets passes through the waterproof grille, due to the blocking and guiding effect of each of the first air guide grilles 111 and the second air guide grilles 112, the wind cannot pass through the waterproof grille in a straight line and can only be forced to deflect along the gap between the first air guide grilles 111 and the second air guide grilles 112. Because the water droplets contained in the wind are larger in mass and volume than air molecules, their inertia is also relatively large. Under the action of inertia, the water droplets will continue to move in a straight line and eventually collide with the arc-shaped surfaces of the first wind guide 111 and the second wind guide 112. They are blocked and cannot be blown out with the airflow. After accumulating into larger water droplets, they drip down the grid into the water receiving tray below under the action of gravity.

[0052] According to an air conditioning device provided by the present invention, a bracket for installing a waterproof grille is provided in the air duct. The bracket has a mounting groove 203 that defines the position of the waterproof grille in the thickness direction Y. Preferably, the bracket is provided at least at the top and bottom of the waterproof grille to respectively limit and install it with the top plate 101 and bottom plate 102 of the waterproof grille. The mounting groove 203 has a structural form that matches the size and shape of the top plate 101 and bottom plate 102. Preferably, as shown... Figure 5As shown, the bracket is set on the inner wall of the air duct around the waterproof grille, and each has a mounting groove 203 facing the waterproof grille.

[0053] An air conditioning device provided by the present invention, such as Figure 5 and Figure 6 As shown, the bracket preferably includes a bottom bracket 210, which includes a bearing surface 211, a water collection groove 212 recessed relative to the bearing surface 211, and limiting plates 213 extending upward on both sides of the bearing surface 211 in the width direction; the limiting plates 213 and the bearing surface 211 form an installation groove 203. To facilitate the discharge of condensate intercepted by the waterproof grille, the bottom of the water collection groove 212 preferably has a plurality of water passage holes 214 evenly distributed, and the water collection groove 212 is connected to the condensate collection tray of the air conditioning equipment through the water passage holes 214.

[0054] According to the preferred embodiment of the air conditioning equipment, the water-blocking grille installed inside the air conditioning equipment is fixed by its surrounding supports. Because the bottom support 210 is located at the bottom of the grille, water droplets will eventually collect and fall onto it. The structure of the bottom support 210, while meeting the requirements for support and positioning, also has certain requirements for drainage. The entire bottom support 210 includes a bearing surface 211, a water collection groove 212 recessed relative to the bearing surface 211, and limiting plates 213 extending upwards on both sides of the bearing surface 211 in the width direction. The limiting plates 213 and the bearing surface 211 form an installation groove 203. The waterproof grille is placed directly on this bearing surface 211, suspended from the water collection groove 212, preventing water droplets from accumulating between the water-blocking grille and the support, thus preventing corrosion. The water collection groove 212 has multiple water passage holes 214 to facilitate the drainage of collected water. The limiting plates 213 on both sides are discontinuous, ensuring accurate positioning of the waterproof grille and preventing displacement due to wind. The intermittent structure also provides good drainage and effectively prevents rust and corrosion after water accumulation.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A waterproof grille for an air conditioning unit, characterized in that, For installation between the evaporator and the fan of an air conditioning unit, including a top plate (101), a bottom plate (102), and a first air guide grille (111) and a second air guide grille (112) fixed between the top plate (101) and the bottom plate (102). The first air guide grille (111) and the second air guide grille (112) are respectively disposed on both sides close to the thickness direction Y of the waterproof grille; Multiple first air guide grilles (111) and multiple second air guide grilles (112) are evenly distributed alternately along the longitudinal direction X of the waterproof grille; An air inlet opening (121) is formed between adjacent first air guide grilles (111), and an air outlet opening (122) is formed between adjacent second air guide grilles (112). The orientations of the air inlet opening (121) and the air outlet opening (122) are symmetrical with respect to the length direction X. In the thickness direction Y, the projection range of the adjacent first air guide grille (111) and second air guide grille (112) covers the air inlet opening (121); On a plane perpendicular to the first air guide grille (111) and the second air guide grille (112), the cross-sectional shape of the first air guide grille (111) and the second air guide grille (112) is arc-shaped; Along the length direction X, the arc surfaces of the first air guide grille (111) and the second air guide grille (112) face the same direction.

2. The waterproof grille for air conditioning equipment according to claim 1, characterized in that, In the thickness direction Y, the outer arc surface of the first air guide grille (111) blocks at least half of the air inlet opening (121), and the inner arc surface of the second air guide grille (112) blocks at least the other half of the air inlet opening (121).

3. The waterproof grille for air conditioning equipment according to claim 2, characterized in that, The outer arc surface of the first air guide grille (111) and / or the inner arc surface of the second air guide grille (112) are corrugated surfaces.

4. The waterproof grille for air conditioning equipment according to claim 1, characterized in that, In the thickness direction Y, the top plate (101) and the bottom plate (102) have the same width, and the first air guide grille (111) and the second air guide grille (112) have the same first projected length; The width of the plate is greater than the first projected length, which is greater than half of the width of the plate.

5. The waterproof grille for air conditioning equipment according to claim 1, characterized in that, In the length direction X, the second projected lengths of the first air guide grille (111) and the second air guide grille (112) are the same, and the opening size of the air inlet (121) and the air outlet (122) are the same. The opening size is greater than the second projected length, which is greater than or equal to one-half of the opening size.

6. The waterproof grille of the air conditioning equipment according to any one of claims 1-5, characterized in that, In the working state of the waterproof grille, the top plate (101) is located above the direction of gravity, and the bottom plate (102) is located below the direction of gravity. The base plate (102) is provided with an elongated hole extending along the length direction X.

7. An air conditioning device, characterized in that, The air conditioning equipment is equipped with an evaporator (201), a waterproof grille, and a fan (202) in the air duct, wherein the waterproof grille is the waterproof grille of the air conditioning equipment as described in any one of claims 1-6; When the fan is working, the air passes through the evaporator and the waterproof grille in sequence, and is finally discharged from the air conditioning equipment by the fan.

8. The air conditioning equipment according to claim 7, characterized in that, The air duct is provided with a bracket for installing the waterproof grille, and the bracket has a mounting groove (203) that defines the position of the waterproof grille in the thickness direction Y.

9. The air conditioning equipment according to claim 8, characterized in that, The bracket includes a bottom bracket (210), which includes a bearing surface (211), a water collection trough (212) recessed relative to the bearing surface (211), and limiting plates (213) extending upward on both sides of the bearing surface (211) in the width direction. The limiting plate (213) and the bearing surface (211) form the mounting groove (203).

10. The air conditioning equipment according to claim 9, characterized in that, The bottom of the water collection tank (212) is evenly distributed with multiple water passage holes (214), and the water collection tank (212) is connected to the condensate collection pan of the air conditioning equipment through the water passage holes (214).

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