CN220871010U - Electric control box and air conditioner outdoor unit - Google Patents

Abstract

The application provides an electric control box and an air conditioner outdoor unit, and relates to the technical field of air conditioners. The electric control box comprises a box body, a first baffle and a water retaining component. The box body is provided with a containing cavity, and one side of the box body is provided with an air outlet. The first baffle is arranged outside the box body. The water retaining component is arranged at intervals with the air outlet and covers the air outlet; the water retaining assembly comprises a plurality of water retaining sheets which are connected with the first baffle; the water retaining sheets are arranged at intervals along the first direction; in the air outlet direction of the air outlet, two adjacent water retaining sheets are partially overlapped. According to the electric control box provided by the application, the adjacent two water retaining sheets are partially overlapped in the air outlet direction of the air outlet, so that the water retaining assembly can form continuous shielding for the air outlet, and water drops are prevented from entering the electric control box through the air outlet; through setting up the interval of two adjacent manger plate pieces for manger plate subassembly has more and more dispersed air intake, is convenient for take away the steam between manger plate subassembly and the air outlet, promotes heat dispersion.

Description

Electric control box and air conditioner outdoor unit

Technical Field

The application relates to the technical field of air conditioners, in particular to an electric control box and an air conditioner external unit.

Background

An electronic control box is one of important components of an air conditioner, and is used for controlling the operation of electrical components of an external machine. The electric control box is internally provided with a plurality of heating components, so that an air outlet and an air inlet are required to be arranged on the electric control box for heat dissipation. Along with the operation of the fan of the external machine, the fan drives air around the electric control box to flow, so that heat in the electric control box is taken out from the air outlet, and the purpose of radiating the electric control box is achieved. However, when raining, rainwater can permeate the grid and get into the fan department of the outer machine of air conditioner to can rotate along with the fan, get rid of on the automatically controlled box by the flabellum of fan, get into inside the reactor box through air intake and air outlet.

At present, how to meet the waterproof and heat dissipation requirements of the electric control box is still a great technical difficulty.

Disclosure of utility model

Therefore, the application aims to provide the electric control box and the air conditioner outdoor unit, and the heat dissipation performance of the electric control box is improved on the basis that the electric control box has the waterproof performance.

The technical scheme adopted by the application for solving the technical problems is as follows:

In a first aspect, the application provides an electronic control box, which comprises a box body, a first baffle plate and a water retaining assembly. The box body is provided with the air outlet. The first baffle is arranged on the box body. The water retaining component is connected with the first baffle and is arranged at intervals with the air outlet, and the water retaining component is used for shielding the air outlet; the water retaining assembly comprises a plurality of water retaining sheets which are arranged at intervals along the first direction; in the air outlet direction of the air outlet, two adjacent water retaining sheets are partially overlapped.

In some embodiments of the present application, a side of the water deflector connected to the first baffle plate has an end portion a and an end portion B along the first direction; the connecting line between the end A and the end B is AB, and an included angle A is formed between the AB and the first direction at the end A; along the first direction, the included angle A is sequentially increased, and the end part B is positioned at one side of the end part A, which is close to the air outlet.

In some embodiments of the application, the ends a of the plurality of water deflector sheets are collinear on a first line parallel to the first direction.

In some embodiments of the present application, a first surface of the water blocking plate facing the air outlet is an arc surface, and along a second direction, the water blocking plate has a first end and a second end, and the first end is connected with the first baffle; from the first end to the second end, the distance between the arc-shaped surface and the air outlet is increased and then reduced, and the second direction is parallel to the plane where the air outlet is located and perpendicular to the first direction.

In some embodiments of the present application, in the second direction, the first surface has an arc, and a center of the arc is located on a side of the first surface near the air outlet.

In some embodiments of the application, the thickness of the water deflector decreases gradually from the first end to the second end.

In some embodiments of the present application, a plurality of air outlets are disposed on the first baffle, and a gap between the water blocking sheet and the air outlet is communicated with the air outlets.

In some embodiments of the present application, a plurality of stepped grooves are disposed on a side of the first baffle facing away from the water blocking assembly along the first direction, and distances from the bottom of the stepped grooves to the water blocking assembly increase or decrease sequentially along the first direction.

In some embodiments of the application, a second baffle is disposed at an end of the first baffle facing away from the case, the second baffle extending from the first baffle in a direction facing away from the water deflector.

In a second aspect, the application also provides an air conditioner external unit, which comprises an external unit shell, a fan and the electric control box, wherein the external unit shell is provided with an installation cavity; the fan and the electric control box are arranged in the mounting cavity; the water retaining sheet is positioned between the fan and the air outlet; the first direction is parallel to the rotational axis of the fan.

In summary, due to the adoption of the technical scheme, the application at least comprises the following beneficial effects:

According to the electric control box provided by the application, the adjacent two water retaining sheets are partially overlapped in the air outlet direction of the air outlet, so that the water retaining assembly can form continuous shielding for the air outlet, and water drops are prevented from entering the electric control box through the air outlet; through setting up the interval of two adjacent manger plate pieces for manger plate subassembly has more and more dispersed air intake, is convenient for take away the steam between manger plate subassembly and the air outlet, promotes heat dispersion.

Drawings

For a clearer description of an embodiment of the application, reference will be made to the accompanying drawings of embodiments, which are given for clarity, wherein:

Fig. 1 is a schematic structural diagram of an electronic control box according to an embodiment of the present application;

fig. 2 is a side view of an electronic control box according to an embodiment of the present application;

fig. 3 is a bottom view of an electronic control box according to an embodiment of the present application;

FIG. 4 is a schematic diagram of the gas flow of a water deflector assembly according to an embodiment of the present application;

fig. 5 is a schematic structural view of a water blocking assembly according to an embodiment of the present application;

Fig. 6 is a schematic diagram of a position of an included angle a according to an embodiment of the present application;

fig. 7 is a front view of an electronic control box according to an embodiment of the present application;

FIG. 8 is a schematic diagram of a water deflector layout according to an embodiment of the present application;

fig. 9 is a schematic structural view of a water deflector according to an embodiment of the present application;

Fig. 10 is a schematic structural view of a water deflector according to another view angle provided by an embodiment of the present application;

FIG. 11 is a schematic diagram of the flow of gas at the exhaust port according to an embodiment of the present application;

Fig. 12 is a cross-sectional view of an electric control box according to an embodiment of the present application along an extending direction of a stepped slot;

FIG. 13 is an enlarged view of FIG. 12 at E;

Fig. 14 is a schematic structural diagram of an air conditioner outdoor unit according to an embodiment of the present application;

FIG. 15 is a schematic view of a water droplet trajectory according to an embodiment of the present application;

Fig. 16 is a schematic diagram of another water drop trajectory according to an embodiment of the present application.

Reference numerals illustrate:

1000-an air conditioner external unit;

100-an electric control box;

1-a box body; 2-a first baffle; 3-a receiving chamber; 4-an air outlet; 5-water retaining sheets; 6-a ventilation groove; 7-an air guide groove; 8-a fan; 9-a mounting cavity; 10-an outer machine shell; 11-a first surface; 12-an exhaust outlet; 13-a second surface; 14-step grooves; 15-a second baffle.

Detailed Description

The technical solutions of the embodiments of the present application will be clearly and fully described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application.

In the description of the present application, it should be understood that the terms "length," "width," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a unique orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or the inclusion of a number of indicated features. Thus, a feature defining "a first" or "a second" may include one or more features, either explicitly or implicitly. In the description of the present application, the meaning of "a plurality" is two or more unless explicitly defined otherwise.

In the present application, the term "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described as exemplary in this disclosure is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the application. In the following description, details are set forth for purposes of explanation. It will be apparent to one of ordinary skill in the art that the present application may be practiced without these specific details. In other instances, well-known structures and processes have not been described in detail so as not to obscure the description of the application with unnecessary detail. Thus, the present application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles disclosed herein.

To facilitate an understanding of the solution of the application, spline curves and arrows used for reference numerals in the drawings are described herein: the parts indicated for the spline without arrow are solid parts, i.e. parts with solid structure; the parts indicated for the spline with arrow are virtual parts, i.e. parts without solid structure.

Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of an electronic control box 100 according to an embodiment of the present application, fig. 2 is a side view of the electronic control box 100 according to an embodiment of the present application, and fig. 3 is a bottom view of the electronic control box 100 according to an embodiment of the present application. The embodiment of the application provides an electric control box 100, which comprises a box body 1, a first baffle plate 2 and a water retaining component. The box 1 is provided with an air outlet 4. The first baffle 2 is arranged on the box body 1. The water retaining component is connected with the first baffle plate 2 and is arranged at intervals with the air outlet 4, and the water retaining component is used for shielding the air outlet 4. The water deflector assembly comprises a plurality of water deflector sheets 5. The plurality of water blocking pieces 5 are arranged at intervals in the first direction. In the air outlet direction of the air outlet 4, two adjacent water blocking sheets 5 are partially overlapped.

Optionally, the box 1, the first baffle 2 and the water baffle 5 are sheet metal parts. The first baffle 2 may be integrally formed with the case 1 or welded to the case 1. The water retaining sheet 5 can be of a straight plate structure, a multi-folded plate structure or an arc plate structure. The case 1 has a housing chamber 3 in which components are mounted. The accommodating cavity 3 is communicated with the air outlet 4. The air outlet 4 is a rectangular opening. In the air conditioner external unit, the electronic control box 100 is disposed near the top of the air conditioner external unit. The first direction is parallel to the rotation axis of the fan of the air conditioner external unit. The first baffle plate 2 extends vertically from the side wall of the electric control box where the air outlet 4 is located, and is closer to the top of the air conditioner external unit than the air outlet 4. The water deflector 5 is located below the first baffle 2.

The water blocking assembly shields the air outlet 4, so that water drops thrown out by the fan 8 can be prevented from entering the electric control box 100 from the air outlet 4. Specifically, along a plurality of manger plate pieces 5 that first direction interval set up, because two adjacent manger plate pieces 5 have the overlap in the air-out direction of air outlet 4, can make a plurality of manger plate pieces 5 form continuous shielding to air outlet 4, help guaranteeing the manger plate effect. It will be appreciated that the first baffle 2 also has a certain water blocking effect on the air outlet 4.

The water retaining assembly, the first baffle plate 2 and the electric control box 1 are provided with ventilation grooves 6 with notches facing away from the first baffle plate 2, which are formed by surrounding the side walls of the air outlet 4, as shown in fig. 1. One side of the ventilation groove 6 is coplanar with the air outlet 4, and the other side of the ventilation groove 6 is a water retaining component. The vent slot 6 has opposed first and second slot ports. The first slot port is directed in the air intake direction of the fan 8. The second slot port is directed in the direction of the air outlet of the fan 8. As the fan 8 rotates, the fan 8 drives air outside the electronic control box 100 to flow along the first direction. The air at the first slot port flows along the ventilation slot 6, and the hot air exhausted from the air outlet 4 of the electric control box 100 is exhausted from the second slot port. It will be appreciated that some of the heat may also be removed from the slots of the ventilation slots 6 as air flows.

In some embodiments, the flow area of the first slot port is greater than the flow area of the second slot port. Therefore, in the process that the air entering the ventilation groove 6 from the first groove port is wrapped by the hot air exhausted from the air outlet 4 and flows towards the second groove port, the difference of the flow areas of the first groove port and the second groove port is beneficial to accelerating the flow of the air in the ventilation groove.

The two adjacent water baffle plates 5 are arranged at intervals, so that the two adjacent water baffle plates 5 form a wind guide groove 7 for air flow at the overlapped part. One slot port of the air guide slot 7 faces the air inlet direction of the fan 8, and the other slot port faces the ventilation slot 6 and is communicated with the ventilation slot 6. As the fan 8 rotates, the air guide groove 7 continuously feeds air to one end of the air inlet end of the fan 8, and the other end continuously feeds air to the ventilation groove 6, as shown in fig. 4, and the air flow diagram of the water blocking assembly provided by the embodiment of the application in fig. 4 is shown. Therefore, the water retaining sheets 5 can not only form continuous shielding for the air outlet 4, but also enable the water retaining assembly to have more and more dispersed air inlets, increase the air inlet area of the ventilation groove 6 and improve the heat dissipation effect.

Referring to fig. 5, fig. 5 is a schematic structural diagram of a water blocking assembly according to an embodiment of the application. In some embodiments of the application, the side of the water deflector 5 connected to the first baffle 2 has an end a and an end B in the first direction. The connection line between the end A and the end B is AB, and an included angle A is formed between the AB and the first direction at the end A. Along the first direction, the included angle a increases sequentially, and the end B is located at one side of the end a near the air outlet 4, as shown in fig. 6, fig. 6 is a schematic diagram of the position of the included angle a according to the embodiment of the present application. Fig. 6 is a bottom view of the electronic control cartridge 100. In order to facilitate the presentation of the angle a, the water deflector 5 is projected as a line in fig. 6.

When AB is a straight line, then the angle a is the angle between the straight line AB and the first direction. When AB is an arc, then the angle a is the angle between the tangent of the arc AB at the end a and the first direction.

The included angle A is positioned at one side of the water baffle 5 away from the air outlet 4 and faces the air outlet direction of the fan 8. Along the first direction, the included angle a is sequentially increased, so that the distance between one side of the water blocking sheet 5, which is away from the air inlet direction of the ventilation slot 6, and the air outlet 4 is sequentially reduced, and a structure with gradually changed cross section of the ventilation slot 6 in the first direction is realized, as shown in fig. 7, and fig. 7 is a front view of the electronic control box 100 provided by the embodiment of the application. Thus, the area of the second slot port of the ventilation slot 6 is smaller than the area of the first slot port of the ventilation slot 6, i.e. the ventilation slot 6 has a larger inlet air area and a smaller outlet air area. And the air inlet end of large tracts of land combines the air-out end of small tracts of land, can form strong convection in ventilation groove 6 for the air current velocity of flow in the ventilation groove 6 increases, promotes the radiating efficiency of automatically controlled box 100.

It will be appreciated that the water deflector assembly has a first side adjacent to the air outlet and a second side facing away from the air outlet, with the angle a increasing in sequence from the second side to the first side, the gap between two adjacent water deflector sheets 5 decreasing gradually.

Referring to fig. 8, fig. 8 is a schematic layout view of a water deflector 5 according to an embodiment of the present application. Fig. 8 is a bottom view of the electronic control cartridge 100. In order to facilitate the display of the layout of the water deflector 5, the water deflector 5 is projected as a line in fig. 8. In some embodiments of the application, the ends a of the plurality of water deflector sheets 5 are collinear on a first line parallel to the first direction. This can not only make the manger plate subassembly overall arrangement neat pleasing to the eye, can guarantee again that can the air inlet between any two adjacent manger plate pieces 5 for the air inlet is even between the manger plate piece 5.

Alternatively, there are 4 water blocking sheets 5. Along the first direction, the plurality of water retaining sheets 5 are a first water retaining sheet, a second water retaining sheet, a third water retaining sheet and a fourth water retaining sheet in sequence. Correspondingly, as shown in fig. 6, the included angles a between the first water blocking piece, the second water blocking piece, the third water blocking piece and the fourth water blocking piece and the first direction are A1, A2, A3 and A4 in sequence, along the first direction, a ₁＜A₂＜A₃＜A₄, which satisfy the following conditions: a ₁≤8°、8°≤A₂≤16°、16°≤A₃≤24°、24°≤A₄ is more than or equal to 0 and less than or equal to 32 degrees. Alternatively, a ₁＝7°,A₂＝14°,A₃＝21°,A₄＝28°.A₁ is associated with the intake area of the ventilation slot 6, so that a smaller angle is selected to provide a larger intake area of the ventilation slot 6. The ventilation cross section of the ventilation slot 6 is reduced with a gradual magnification angle relative to a ₁,A₂ and a ₃. A ₄ is related to the air outlet area of the ventilation groove 6, so that a large angle is adopted to generate a small air outlet area, so that strong convection is formed between the box body 1 and the water retaining component, and the air outlet efficiency is increased.

As shown in fig. 8, in the first direction, the spacing between adjacent two end portions a is D ₁、D₂ and D ₃ in order. In the direction parallel to the first direction, the distance from the end A to the end B of the fourth water baffle 5 is D ₄, and 0 < D ₁＝D₂＝D₃＝D₄ is less than or equal to 65mm. Optionally, D ₁＝D₂＝D₃＝D₄ = 60mm. By means of the design, the ventilation grooves 6 are uniform in air inlet, the electric control box 100 is facilitated to improve heat dissipation performance, the layout is uniform, and the attractiveness of the electric control box 100 is improved.

Referring to fig. 9, fig. 9 is a schematic structural diagram of a water deflector 5 according to an embodiment of the present application. In some embodiments of the present application, the first surface 11 of the water deflector 5 facing the air outlet 4 is an arc surface. In the second direction, the water deflector 5 has a first end and a second end. The first end is connected to the first baffle 2. From the first end to the second end, the distance between the arc-shaped surface and the air outlet 4 is increased and then reduced, and the second direction is parallel to the plane where the air outlet 4 is located and perpendicular to the first direction.

In practice, the second direction is the direction of gravity.

The first surface 11 of the water deflector 5 is provided as an arc surface, i.e. such that the trajectory curve of the first surface 11 of the water deflector 5 from the first end to the second end is S-shaped. The S-shaped first surface 11 not only can ensure that the water retaining assembly has a good water retaining area, but also can ensure that the first surface 11 has a better air flow curve, is more beneficial to air outlet, ensures that the air outlet is smoother and quicker, and further improves the heat dissipation efficiency of the electric control box 100.

In addition, the distance between the arc surface and the air outlet 4 is increased and then reduced, namely, the distance between the water baffle 5 and the box body 1 is smaller on one side away from the first baffle 2. This makes one side of the water deflector 5 facing away from the first baffle 2 extend toward the box body 1, thereby preventing water drops from entering the electronic control box 100 from the air outlet 4 to a certain extent, and further improving the waterproof performance of the electronic control box 100.

Referring to fig. 10, fig. 10 is a schematic structural diagram of a water deflector according to another view angle according to an embodiment of the present application. In the second direction, the water blocking plate 5 has an arc, and the center of the arc is located at one side of the first surface 11 close to the air outlet 4. The water deflector 5 has an arc in the second direction from the first end to the second end, the first surface 11 is composed of a plurality of arc lines, and the concave side of the arc lines faces the air outlet 4.

In the first direction, the water deflector 5 has a first side and a second side. In the second direction, the first surface 11 has an arc, i.e. an arc line from the first side to the second side and an arc B from the first side to the second side, satisfying 0 < B < 2rad, optionally b=0.2 rad, as shown in fig. 10. In this way, on the basis that the water blocking sheet 5 has an S-shaped curved surface, the water blocking sheet 5 is further bent, so that the water blocking sheet is beneficial to air flow, and the electric control box 100 has more excellent waterproof performance and heat dissipation performance.

In addition, the small radian value is adopted, so that the projection of the whole water retaining sheet 5 onto the plane where the air outlet 4 is located is ensured to be large, the water-proof purpose of the air outlet 4 of the electric control box 100 can be realized by adopting the small water retaining sheet 5, and the water-proof effect of the electric control box 100 is ensured. And the radian value is smaller for in the air flow direction in ventilation groove 6, manger plate 5 has slower curved surface deformation, and is less to the air flow influence, thereby can guarantee the flow effect of the air in the ventilation groove 6, make automatically controlled box 100 have better ventilation effect and radiating effect.

For the case where the first surface 11 has an arc B, the angle a is the angle between the tangent at the end a and the first direction. Specifically, in the first direction, a side of the water deflector 5 connected to the first barrier 2 has an end a and an end B; the end part B is positioned at one side of the end part A, which is close to the air outlet 4, and an included angle A is formed between a tangent line at the end part A and the first direction at the end part A; along the first direction, the included angle A increases in sequence.

Referring to fig. 9, in some embodiments of the present application, the thickness of the water deflector 5 gradually decreases from the first end to the second end. On the side close to the first baffle 2, the water blocking plate 5 has a thin plate structure with equal thickness. On one side far away from the first baffle plate 2, the water baffle plate 5 is thinned, so that the wind resistance of the water baffle plate 5 can be reduced, water drops on one side, away from the first baffle plate 2, of the water baffle plate 5 can be drained downwards more quickly, and the ventilation groove 6 is discharged more quickly.

Referring to fig. 9, in some embodiments of the present application, the distance between the arcuate surface and the air outlet 4 decreases gradually in a direction away from the first end. This allows the water deflector 5 to have a structure extending approximately downward from one side of the first barrier 2, so that water drops on the water deflector 5 can flow downward more quickly.

The water deflector 5 has a second surface 13 on a side facing away from the first surface 11. The distance between the first surface 11 and the second surface 13 is the thickness H of the water deflector. The thickness H gradually decreases as it moves away from the first baffle 2.

Referring to fig. 1, in some embodiments of the present application, a plurality of exhaust ports 12 are provided on the first baffle plate 2. The gap between the water baffle 5 and the air outlet 4 is communicated with the air outlet 12.

Optionally, the air outlet 12 is a waist hole, and its longest diameter is parallel to the first direction. The number of the air outlets 12 is identical to that of the water blocking sheets 5. In the first direction, the air outlets 12 are in one-to-one correspondence with the water baffle plates 5. The air flow enters from one side of the water baffle 5 away from the first baffle plate 2 and the first slot port of the ventilation slot 6, and is discharged from the second slot port of the ventilation slot and the air outlet 12, as shown in fig. 11, fig. 11 is a schematic diagram of the air flow at the air outlet provided by the embodiment of the application. The air outlet 12 increases the air outlet area of the ventilation slot 6, so as to further improve the heat dissipation efficiency of the electronic control box 100.

The air outlet 12 is arranged such that water droplets thrown by the fan 8 may enter the ventilation slot 6 from the air outlet 12 and strike the first surface 11. The water droplets are broken up into smaller droplets after striking the first surface 11. In order to further improve the waterproof performance of the electronic control box, the water blocking plate 5 is bent into an S-shaped structure, and the first surface 11 has an arc B. This prevents water droplets entering from the outlet 12 from being splashed towards the outlet 4 after striking the first surface 11. The S-shaped structure of the water deflector 5 combines with the radian B of the first surface 11, so that water drops striking the first surface 11 can drain downwards through the first surface 11 and drain out of the ventilation slot 6, thereby guaranteeing the waterproofness of the electronic control box 100.

Referring to fig. 4 and 11, it can be seen that in the electronic control box 100 disclosed in this embodiment, the number of air inlet structures is plural, the number of air outlet structures is plural, and the air outlet structures are equally distributed, so that the electronic control box 100 has high-efficiency heat dissipation efficiency.

Referring to fig. 12 and 13, fig. 12 is a cross-sectional view showing the extending direction of the stepped groove 14 of the present application, and fig. 13 is an enlarged view of fig. 12 at E. In some embodiments of the application, the side of the first baffle 2 facing away from the water deflector assembly is provided with a plurality of stepped grooves 14 in the first direction. In the first direction, the distance of the bottom of the stepped groove 14 from the water blocking assembly increases or decreases sequentially.

It will be appreciated that some of the water droplets thrown off by the fan 8 may fall onto the first baffle plate 2, and by providing a plurality of stepped grooves 14, the water droplets in the stepped grooves 14 may be drained, thereby draining the water droplets from one side of the electronic control box 100.

When the stepped groove 14 is directed to the cable arrangement position of the electronic control box 100 along the first direction, the distance from the bottom of the stepped groove 14 to the water blocking assembly increases in sequence, so that water in the stepped groove 14 is drained away from the cable arrangement position. Conversely, the distance from the bottom of the stepped groove 14 to the water deflector assembly decreases in sequence along the first direction. This arrangement allows drainage of the water in the stepped slot 14 away from the cable arrangement position to avoid water on the first baffle 2 from flowing into the appliance plate along the cable at the cable arrangement position.

Alternatively, there are four stepped slots 14. From far to near from the cable arrangement position, the four step grooves 14 are a1 st step groove 14, a 2 nd step groove 14, a 3 rd step groove 14 and a 4 th step groove 14 in this order. The distance from the bottom of the stepped groove 14 to the water blocking assembly increases in sequence from far to near from the cable arrangement position. And the bottoms of the step grooves 14 are all inclined, and the higher end of the bottom of the nth step groove 14 is connected with the lower end of the bottom of the n+1th step groove 14. Where n.epsilon.1, 3. The inclined angles of the bottoms of the 1 st step groove 14, the 2 nd step groove 14, the 3 rd step groove 14 and the 4 th step groove 14 are C ₁、C₂、C₃ and C ₄ in sequence, and satisfy 0 < C ₁≤1°,C₂＝2C₁,C₃＝4C₁,C₄＝8C₁. Alternatively, C ₁ = 0.5 °. By this arrangement, the inclination of the groove bottom of the stepped groove 14 near the cable arrangement position is maximized, and the water at this position can be discharged to a lower position more quickly, improving the waterproof performance of the electronic control box 100. The stepped grooves 14 with gradually changed inclination angles can effectively avoid the situation that accumulated water stays in one place. And under the action of gravity, drain ponding from high position to low position, reduce or drain ponding on the first baffle 2, prevent ponding along the cable of cable arrangement position to enter into the electrical panel, avoided burning out the condition of electrical panel because of intaking and appear. This not only increases the safety factor of the electronic control box 100, but also the structural gap of such a design stepped slot 14 is small and beautiful.

Referring to fig. 1, in some embodiments of the present application, a second baffle 15 is disposed at an end of the first baffle 2 facing away from the case 1. The second baffle 15 extends from the first baffle 2 in a direction away from the water deflector 5.

The second baffle 15 is provided such that water drops falling on the first baffle 2 can flow only along the first baffle 2, and one side of the stepped groove 14 is discharged, avoiding the water drops from scattering around.

Referring to fig. 14, fig. 14 is a schematic structural diagram of an air conditioner outdoor unit 1000 according to an embodiment. In a second aspect, the present application further provides an air conditioner external unit 1000, including an external unit housing 10, a fan 8 and the above electric control box 100, where the external unit housing 10 has a mounting cavity 9; the fan 8 and the electric control box 100 are arranged in the mounting cavity 9; the water baffle 5 is positioned between the fan 8 and the air outlet 4; the first direction is parallel to the rotational axis of the fan 8. Along the air outlet direction of the fan 8, the included angle A is sequentially increased. In the first direction, the end of the water deflector having the greatest distance from the box 1 is directed towards the air inlet end of the fan 8, as shown in fig. 14.

The electric control box 100 is arranged at one side of the top of the installation cavity 9 and is arranged in a dislocation manner with the fan 8. A partition board is arranged on one side of the fan 8 at intervals relative to the fan 8, the top of the partition board is connected with the middle part of the box body 1 of the electric control box 100, and the bottom of the partition board is connected with the bottom of the installation cavity 9, so that the installation cavity 9 is divided into a fan 8 cavity for installing the fan 8 and a drainage cavity. The part of the box body 1 opposite to the drainage cavity is provided with an air inlet.

When radiating, the fan 8 rotates to drive the air at the water retaining component to flow, and the air in the accommodating cavity 3 is discharged from the air outlet 4, so that negative pressure is formed in the accommodating cavity 3. Based on the negative pressure, air continuously enters the accommodating cavity from the air inlet, and then the electric control box is continuously cooled.

When the fan 8 rotates counterclockwise, as shown in fig. 15, fig. 15 is a schematic diagram of the water drop trajectory according to the embodiment of the present application. At this time, the water drops are driven by the blades of the fan 8 to move upwards, and part of the water drops leaving the blades fall onto the first surface from the air outlet 12 and drop to the bottom of the fan housing along the first surface to the side away from the fan.

When the fan 8 rotates clockwise, as shown in fig. 16, fig. 16 is a schematic view of another water drop trajectory according to the embodiment of the present application. At this time, the water drops are driven by the blades of the fan 8 to move above the first baffle, and part of the water drops leaving the blades fall onto the first surface from the air outlet 12 and drop to the bottom of the fan housing along the first surface to the side away from the fan.

While the basic concepts have been described above, it will be apparent to those skilled in the art that the foregoing detailed disclosure is by way of example only and is not intended to be limiting. Although not explicitly described herein, various modifications, improvements and adaptations of the application may occur to one skilled in the art. Such modifications, improvements, and modifications are intended to be suggested within the present disclosure, and therefore, such modifications, improvements, and adaptations are intended to be within the spirit and scope of the exemplary embodiments of the present disclosure.

Claims (10)

1. An electronic control box, characterized by comprising:

The box body is provided with an air outlet;

The first baffle is arranged on the box body;

The water retaining component is connected with the first baffle plate and is arranged at intervals with the air outlet, and the water retaining component is used for shielding the air outlet; the water retaining assembly comprises a plurality of water retaining sheets which are arranged at intervals along a first direction; in the air outlet direction of the air outlet, two adjacent water retaining sheets are partially overlapped.

2. The electronic control box according to claim 1, wherein a side of the water blocking piece connected with the first baffle plate has an end a and an end B along the first direction; the connecting line between the end A and the end B is AB, and an included angle A is formed between the AB and the first direction at the end A; along the first direction, the included angle A is sequentially increased, and the end part B is positioned at one side of the end part A, which is close to the air outlet.

3. The electronic control cartridge of claim 2, wherein the ends a of the plurality of water flaps are collinear on a first line parallel to the first direction.

4. The electronic control box according to claim 1, wherein a first surface of the water blocking plate facing the air outlet is an arc surface, the water blocking plate is provided with a first end and a second end along a second direction, the first end is connected with the first baffle, a distance between the arc surface and the air outlet is increased and then decreased from the first end to the second end, and the second direction is parallel to a plane where the air outlet is located and perpendicular to the first direction.

5. The electronic control box of claim 4, wherein in the second direction, the first surface has an arc, and a center of the arc is located on a side of the first surface near the air outlet.

6. The electrically controlled box of claim 4, wherein the water deflector gradually decreases in thickness from the first end to the second end.

7. The electronic control box according to claim 1, wherein a plurality of air outlets are arranged on the first baffle plate, and gaps between the water retaining assembly and the air outlets are communicated with the air outlets.

8. The electronic control box according to any one of claims 1 to 7, wherein a plurality of stepped grooves are formed in a side of the first baffle plate facing away from the water blocking assembly in the first direction, and distances from the bottoms of the stepped grooves to the water blocking assembly in the first direction are sequentially increased or decreased.

9. The electronic control box of claim 8, wherein a second baffle is disposed at an end of the first baffle facing away from the box body, and the second baffle extends from the first baffle in a direction facing away from the water deflector.

10. An air conditioner outdoor unit, comprising:

An outer housing having an installation cavity;

The fan is arranged in the mounting cavity;

The electronic control box according to any one of claims 1 to 9, wherein the water blocking piece is disposed in the installation cavity and is located between the fan and the air outlet, and the first direction is parallel to the rotation axis of the fan.