CN214355578U

CN214355578U - Drainage system for electrical equipment and electrical equipment using drainage system

Info

Publication number: CN214355578U
Application number: CN202022750056.2U
Authority: CN
Inventors: 王爽; 丰宇庭; 吴登; 丛艳伟; 汪宁; 王茜; 张罗锐; 刘良; 张敬涛; 柳俊岗; 桑永建; 薛莲
Original assignee: State Grid Corp of China SGCC; Pinggao Group Co Ltd; Tianjin Pinggao Intelligent Electric Co Ltd
Current assignee: State Grid Corp of China SGCC; Pinggao Group Co Ltd; Tianjin Pinggao Intelligent Electric Co Ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-10-08
Anticipated expiration: 2030-11-24

Abstract

The utility model provides an electrical equipment drainage system and use this drainage system's electrical equipment, electrical equipment drainage system includes: a blind structure; the ventilation cotton is arranged at the rear side of the shutter structure; the pressing plate is arranged on the rear side of the ventilating cotton; the water receiving tank is arranged below the ventilating cotton and is provided with a water outlet for discharging water to the outside of the electrical equipment; the drain pipe has the first end with the outlet intercommunication and stretches out the outside second end of electrical equipment, and second end inside is equipped with dustproof cotton, still installs the bottom, and dustproof cotton is located the bottom inboard, is equipped with the sieve mesh that supplies water outflow on the bottom. The utility model discharges the water in the water receiving tank to the outside of the electrical equipment through the drain pipe, thereby avoiding the direct drainage from the cabinet door to cause the cabinet door to be dirty or rusty; the water discharge pipe increases the water holding capacity, and avoids that suddenly increased water cannot be discharged in time and flows into the equipment; the dustproof cotton can prevent external dust from entering the interior of the equipment, and the electrical equipment is guaranteed to meet the protection level requirement.

Description

Drainage system for electrical equipment and electrical equipment using drainage system

Technical Field

The utility model relates to an electrical equipment makes technical field, concretely relates to electrical equipment drainage system and uses this drainage system's electrical equipment.

Background

The charging facility is a charging system which ensures that the electric automobile and a power grid can safely, reliably and economically provide electric energy, and is outdoor electrical equipment which realizes the interaction of the electric automobile and the power grid by taking a charging device as a carrier. The protection level (IP 54 and IP 55) of the shell in the charging equipment and the heat dissipation of the equipment form two contradictory and opposite technical difficulties, and on the premise that the protection level of the equipment is achieved, the problem of heat dissipation inside the equipment becomes a technical problem of safe and stable operation of the charging equipment.

The patent of the Chinese utility model with the publication number of CN205897476U discloses a shutter assembly and a charging pile with the shutter assembly, wherein the shutter assembly comprises a door plate, a ventilating cotton pressing plate, ventilating cotton and a water-stop plate, and the door plate is provided with a shutter blade structure to form a plurality of through holes; the ventilation cotton pressing plate is positioned at the rear side of the door plate, the ventilation cotton is arranged between the door plate and the ventilation cotton pressing plate, on one hand, the ventilation cotton does not influence exhaust heat dissipation, on the other hand, water entering the door plate can be absorbed, and a water outlet is arranged below the ventilation cotton; the water-stop sheet is arranged behind the door plate and below the ventilating cotton pressing plate, the water-stop sheet and the door plate enclose a water receiving tank, water absorbed in the ventilating cotton flows downwards under the action of gravity, enters the water receiving tank through the water outlet, and then flows out of the charging pile through the lowest through hole.

Although above-mentioned fill electric pile and taken into account ventilation cooling and the drainage of internal plant, in practical application process, because the through-hole of water receiving tank and equipment inside and bottom is the intercommunication, that is to say, equipment is inside in fact directly to communicate with the external world through the water receiving tank, and this can't reach the required protection level of equipment at the great use occasion of sand blown by the wind dust at all. Simultaneously, because water flows through the through-hole of shutter bottom, have very wide delivery port in the downcast like this on the whole cabinet door, use a period can cause on the cabinet door than dirty, arouse even to rust, the influence is pleasing to the eye. In addition, the volume of the water receiving tank is limited, if the water is discharged in time in sudden heavy rain, rainwater can flow into the equipment from the rear side through the water receiving tank, and once the components in the equipment enter water, serious accidents can be caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an electrical equipment drainage system to solve the problems that the prior art can not meet the requirement of protection level, and the cabinet door is dirty or even rusty due to direct drainage on the cabinet door, and the drainage is not timely when heavy rain is suddenly encountered due to limited volume of the water receiving tank; an object of the utility model is to provide an electrical equipment to solve prior art can't satisfy protection level requirement and on the cabinet door direct drainage and lead to the cabinet door dirty, rust even, simultaneously because the water receiving tank volume is limited and lead to suddenly meeting the untimely problem of drainage when raining.

In order to achieve the above object, the utility model provides an electrical equipment drainage system adopts following technical scheme:

an electrical equipment drainage system comprising:

the shutter structure is arranged on a door panel of the electrical equipment or the side wall of the cabinet body;

the ventilation cotton is arranged on the rear side of the shutter structure;

the pressing plate is arranged on the rear side of the ventilation cotton and is used for being fixedly connected with the shutter structure or the electrical equipment so as to tightly press and fix the ventilation cotton;

the water receiving tank is arranged below the ventilation cotton and used for receiving water absorbed in the ventilation cotton;

the water receiving tank is provided with a water outlet for discharging water in the water receiving tank to the outside of the electrical equipment;

the electrical equipment drainage system further includes:

the drain pipe, the drain pipe have with the first end of outlet intercommunication and be used for stretching out electrical equipment outside second end, the inside dustproof cotton that is provided with of second end of drain pipe, the bottom is still installed to the second end of drain pipe, and dustproof cotton is located the inboard of bottom, is provided with the sieve mesh that supplies water outflow on the bottom.

The beneficial effects of the above technical scheme are that: because be provided with on the water receiving tank and supply the water in the water receiving tank to discharge to the outside outlet of electrical equipment to electrical equipment drainage system still includes the drain pipe, the drain pipe have with the first end of outlet intercommunication and be used for stretching out electrical equipment outside second end, just so can discharge the outside of electrical equipment through the drain pipe with the water in the water receiving tank, avoid directly draining from the cabinet door and lead to the cabinet door dirty, rust even.

Simultaneously, during the water in the water receiving tank flowed into the drain pipe earlier, then flowed to the electrical equipment outside, consequently when meeting heavy rain suddenly, the water that increases suddenly in the water receiving tank can flow into the drain pipe, and the drain pipe has increased the holding capacity of water in other words, avoids the water that increases suddenly can not in time discharge and flow to inside the equipment, and then avoids the inside components and parts of equipment to intake, has ensured electrical equipment's normal operating.

In addition, because the inside dustproof cotton that is provided with of second end of drain pipe, the bottom is still installed to the second end of drain pipe, and dustproof cotton is located the inboard of bottom, is provided with the sieve mesh that supplies water to flow out on the bottom, and dustproof cotton can prevent outside sand blown by the wind dust from the second end entering equipment of drain pipe inside, guarantees that electrical equipment can satisfy the protection level requirement, and the sieve mesh that sets up on the bottom can supply water to flow out, guarantees normal drainage function.

Further, in order to facilitate the arrangement and connection of the drain pipe, the drain pipe is a hose.

Furthermore, in order to conveniently set the dustproof cotton, the second end of the drain pipe is connected with a dustproof cylinder, the dustproof cotton is arranged in the dustproof cylinder, and the bottom cover is arranged on the dustproof cylinder.

Furthermore, in order to facilitate the opening and closing of the bottom cover, the bottom cover is hinged to the dust-proof cylinder, a magnet used for adsorbing and fixing the bottom cover is arranged in the dust-proof cylinder, the dustproof cotton is arranged on the inner side of the magnet, and a through hole for water to pass through is formed in the magnet.

Furthermore, in order to prevent water from being sprayed to the internal components under the condition that the water discharge pipe leaks, the electric equipment water discharge system further comprises a protective pipe which is used for being fixed on the electric equipment and is surrounded outside the water discharge pipe.

Further, in order to facilitate installation and replacement of the drain pipe, the protection pipe includes a fixed portion for being fixed to the electrical equipment and a detachable portion detachably connected to the fixed portion.

Furthermore, in order to ensure the safety of equipment and personnel when rainwater is large, the drainage system of the electrical equipment further comprises a water sensor fixed on the electrical equipment, and a probe of the water sensor is positioned at the top of the water receiving tank so as to send an alarm and control the electrical equipment to stop running when water reaches the top of the water receiving tank.

Further, in order to make the shutter structure have better rain-proof effect, the shutter structure includes the frame and installs a plurality of blades in the frame, the blade includes first vertical limit and the vertical limit of second, first vertical limit is located the rear side of the vertical limit of second and leans on the upper position, the blade still includes first slope limit and second slope limit, first slope limit is connected between the bottom of first vertical limit and the top of the vertical limit of second, the bottom at the vertical limit of second is connected to the second slope limit, the outside of frame is extended to the second slope limit, first slope limit and second slope limit all from the back forward downward sloping gradually.

Further, for the installation of convenient water receiving tank is fixed and the water receiving, the shutter structure includes the frame and installs a plurality of blades in the frame, the water receiving tank includes the bottom plate and the preceding curb plate that links to each other with the bottom plate, posterior lateral plate, left side board and right side board, be provided with the breach on bottom plate and the preceding curb plate respectively, the water receiving tank passes through the breach to be fixed at the frame of shutter structure outsidely, the posterior lateral plate of water receiving tank is located the rear side of clamp plate, clamp plate and the cotton bottom of ventilating all are located the water receiving tank.

In order to achieve the above object, the utility model discloses well electrical equipment's the following technical scheme of adoption:

electrical equipment, including the cabinet body and install the door plant on the cabinet body, the cabinet body includes the lateral wall, and electrical equipment still includes drainage system, drainage system includes:

the ventilation cotton is arranged on the rear side of the shutter structure;

the electrical equipment drainage system further includes:

Further, in order to install and replace the drain pipe for convenience, the protection pipe includes a fixed portion for fixing to the electric device and a detachable portion detachably connected to the fixed portion.

Drawings

Fig. 1 is a front view of an electrical apparatus of the present invention;

FIG. 2 is a perspective view of a drainage system in the electrical apparatus of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is an enlarged view at B in FIG. 2;

FIG. 5 is a rear view of a drainage system in the electrical apparatus of the present invention;

FIG. 6 is a cross-sectional view taken along line C-C of FIG. 5;

fig. 7 is a side view of a drainage system in the electrical apparatus of the present invention;

FIG. 8 is an enlarged view taken at D in FIG. 7;

fig. 9 is a partial sectional view of a drain pipe of the drain system in the electric apparatus of the present invention;

fig. 10 is a layout structure diagram of the water sensor of the drainage system in the electrical equipment of the present invention.

In the figure: 1-a cabinet body; 2-door panel; 3-a louver structure; 31-a frame; 32-blades; 321-a first vertical edge; 322-a second vertical edge; 323-a first inclined edge; 324-a second inclined edge; 4-ventilated cotton; 5, pressing a plate; 51-flanging; 52-opening; 6-water receiving tank; 61-a water outlet; 7-a protective tube; 71-a stationary portion; 72-a removable portion; 8-a drain pipe; 9-a dustproof cylinder; 10-bottom cover; 11-a cotter pin; 12-a magnet; 13-dustproof cotton; 14-Water immersion sensor.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The features and properties of the present invention are described in further detail below with reference to examples.

The utility model provides an electrical equipment is outdoor electrical equipment, specifically can be electric automobile charging device, also can be box-type substation, and electrical equipment's structure is as shown in fig. 1, including the cabinet body 1 with install door plant 2 on the cabinet body 1, the cabinet body 1 is including controlling lateral wall and back lateral wall. The electrical equipment further comprises a drainage system, the drainage system comprises a shutter structure 3 fixedly arranged on the door panel 2, and as shown in a combined drawing 2 and a drawing 3, the drainage system further comprises ventilation cotton 4 and a pressing plate 5, the ventilation cotton 4 is arranged on the rear side of the shutter structure 3, the pressing plate 5 is arranged on the rear side of the ventilation cotton 4, and the pressing plate 5 is fixedly connected with the shutter structure 3 so as to compress and fix the ventilation cotton 4.

As shown in fig. 3, 6, 7 and 8, the blind structure 3 includes a frame 31 and a plurality of slats 32 installed in the frame 31, and the slats 32 are spaced up and down. As shown in fig. 8, blade 32 includes first vertical side 321 and second vertical side 322, and first vertical side 321 is located at a rear upper position of second vertical side 322. The blade 32 further comprises a first inclined edge 323 and a second inclined edge 324, the first inclined edge 323 is connected between the bottom of the first vertical edge 321 and the top of the second vertical edge 322, the second inclined edge 324 is connected at the bottom of the second vertical edge 322, the first inclined edge 323 and the second inclined edge 324 are both inclined downwards from back to front, and the second inclined edge 324 extends to the outside of the frame 31, so that a better rainproof effect can be achieved.

The ventilation cotton 4 plays ventilation cooling and dustproof and waterproof's effect, and clamp plate 5 is fixed ventilation cotton 4, guarantees its ventilation effect simultaneously, and clamp plate 5 is the rectangle frame construction, and rectangle frame's last side and about two sides are respectively through screw and shutter structure 3's frame 31 fixed connection. In order to ensure the fixing effect of the ventilation cotton 4, and simultaneously ensure that water absorbed in the ventilation cotton 4 only flows downwards under the action of gravity, the flanges 51 are arranged on the upper side and the left side and the right side of the pressing plate 5, the ventilation cotton is wrapped by the flanges 51, as shown in fig. 3, the flanges are not arranged on the lower side only, so that an opening 52 is formed between the lower side and the frame 31 of the shutter structure 3, and the upper side and the lower side are not fixed with the shutter structure 3, so that the water in the ventilation cotton 4 can flow out conveniently.

In order to ensure the ventilation effect of the ventilation cotton 4 and the structural strength of the pressing plate 5, as shown in fig. 2 and 5, transverse ribs and vertical ribs which are perpendicular to each other are arranged in the rectangular frame of the pressing plate 5, the rectangular frame is divided into a plurality of square lattices by the transverse ribs and the vertical ribs, and oblique ribs are further arranged in each lattice.

As shown in fig. 2, 3, 5, 6 and 8, the drainage system further includes a water receiving tank 6 disposed below the ventilation cotton 4, and the water receiving tank 6 is used for receiving water absorbed in the ventilation cotton 4. Specifically, water receiving tank 6 includes the bottom plate and the preceding curb plate that links to each other with the bottom plate, the posterior lateral plate, left side board and right side board, be provided with the breach on bottom plate and the preceding curb plate respectively, water receiving tank 6 passes through the breach to be fixed in the frame 31 outside of shutter structure 3, as shown in fig. 3 and fig. 6, wrap in the outside of frame 31 from the rear side and left and right sides in other words, realize the fixed of water receiving tank 6, and the posterior lateral plate of water receiving tank 6 is located the rear side of clamp plate 5, the bottom of clamp plate 5 and ventilation cotton 4 all is located water receiving tank 6, guarantee that the water in the ventilation cotton 4 all can flow to the water receiving tank.

As shown in fig. 3, a drain port 61 is provided on the bottom plate of the water receiving tank 6, and the water in the water receiving tank is discharged to the outside of the electric apparatus through the drain port 61. As shown in fig. 4, 5 and 7, the drain system further includes a drain pipe 8, the drain pipe 8 having a first end communicating with the drain port 61 and a second end protruding to the outside of the electric device. Referring to fig. 4 and 9, the second end of the drain pipe 8 is connected to a dust cylinder 9, a dust cotton 13 is disposed in the dust cylinder 9, a bottom cover 10 is hinged to the dust cylinder 9 through a cotter 11, the dust cotton 13 is located on the inner side of the bottom cover 10, and a sieve hole (not labeled in the figures) for water to flow out is disposed on the bottom cover 10. A magnet 12 for adsorbing and fixing the bottom cover 10 is arranged in the dustproof cylinder 9, dustproof cotton 13 is arranged on the inner side of the magnet 12, and a through hole (not marked in the figure) for water to pass through is arranged on the magnet 12 so as to facilitate water discharge.

Specifically, the drain pipe 8 is a hose, and is convenient to arrange and connect. In order to prevent water from directly spraying on internal components under the condition that the water drainage pipe 8 leaks, the water drainage system further comprises a protective pipe 7 which is fixed on the door panel 2 and surrounds the outside of the water drainage pipe 8. In order to facilitate installation and replacement of the drain pipe 8, as shown in fig. 3, the protection pipe 7 includes a fixing portion 71 fixed on the door panel 2 and a detachable portion 72 detachably connected to the fixing portion 71, specifically, the fixing portion 71 may be U-shaped in cross section, or two parallel plates are respectively welded and fixed on the door panel 2, and form a U-shaped groove together with the door panel 2, the detachable portion 72 is a strip-shaped plate and may be fixed on the fixing portion 71 by a screw, or a locking groove may be provided on the fixing portion 71, and a locking block is provided on the detachable portion 72, so that the detachable portion 72 is directly fastened and fixed on the fixing portion 71 by the locking block. The protective pipe 7 not only protects the drain pipe 8, but also can play a role in reinforcing the door plate.

As shown in fig. 10, the drainage system further comprises a water sensor 14 fixed on the door panel 2, and a probe of the water sensor 14 is located at the top of the water receiving tank 6 so as to send an alarm and control the electrical equipment to stop running when water reaches the top of the water receiving tank 6, thereby fully ensuring the safety of the equipment and personnel.

Electrical equipment is in the use, and when the rainfall is little, rain falls on shutter structure 3, along the landing of blade 32, prevents in the rainwater gets into electrical equipment, reduces the inside probability of drenching with rain of equipment. When the rainfall is slightly large, rain enters the electrical equipment through the air inlet between the blades, the dustproof cotton is wetted, the dustproof cotton plays a role in water absorption, the protection on internal components is achieved, and the safe operation of the equipment is guaranteed. When the rainfall lasts to increase, dustproof cotton wet thoroughly to the rainwater flows into the water receiving tank under the action of gravity, and the rainwater passes through drain pipe discharge electrical equipment this moment, guarantees equipment normal work, reduces personnel's maintenance and repair number of times, reduces the interior secondary components and parts damage probability of electrical equipment and the ageing rate of secondary line simultaneously, reduces equipment cost of maintenance. When the rainfall is too large, water in the water receiving tank cannot be discharged in time, when the water level rises to contact with a probe of the water sensor, the water sensor gives an alarm and controls the electrical equipment to stop running or report the maintenance of a background, so that the short circuit of a line is prevented, and the safe running of the equipment is ensured.

The utility model discloses a drainage system passes through the water of drain pipe in with the water receiving tank and discharges electrical equipment's outside, avoids directly draining on the cabinet door and leads to the cabinet door dirty, rust even. Simultaneously, during the water in the water receiving tank flowed into the drain pipe earlier, then flowed to the electrical equipment outside, consequently when meeting heavy rain suddenly, the water that increases suddenly in the water receiving tank can flow into the drain pipe, and the drain pipe has increased the holding capacity of water in other words, avoids the water that increases suddenly can not in time discharge and flow to inside the equipment, and then avoids the inside components and parts of equipment to intake, has ensured electrical equipment's normal operating. In addition, because the inside dustproof cotton that is provided with of second end of drain pipe, inside dustproof cotton can prevent outside sand blown by the wind dust to get into equipment from the second end of drain pipe, guaranteed that electrical equipment can satisfy protection level requirement, the sieve mesh that sets up on the bottom can supply water and flow out, guarantees normal drainage function.

In other embodiments of the electrical device, the electrical device may also be a switch cabinet.

In other embodiments of the electrical device, the louver structure may also be provided on a cabinet sidewall of the electrical device.

In other embodiments of the electrical device, the water receiving tank may also be fixed to the door panel, and of course, if the louver structure is disposed on the side wall of the cabinet body of the electrical device, the water receiving tank may also be fixed to the side wall of the cabinet body.

In other embodiments of the electrical apparatus, the slats of the louvre structure may also be generally S-shaped slats.

In other embodiments of the electrical apparatus, the drainage system may not include a water immersion sensor.

In other embodiments of the electrical apparatus, the protective tube may be entirely fixed and non-removable.

In other embodiments of the electrical apparatus, the shielding tube may not be provided.

In other embodiments of the electrical device, the bottom cover may be threaded onto the dirt cup or forced into the dirt cup, in which case the magnet is not required.

In other embodiments of the electrical apparatus, the second end of the drain pipe may not be connected to the dirt cup, and the dirt wool and bottom cover may be attached directly to the drain pipe.

In other embodiments of the electrical apparatus, the drain pipe may also be a hard metal pipe.

In other embodiments of the electrical apparatus, the pressure plate may not be fixed to the blind, for example may be fixed to a door panel or a cabinet side wall.

In other embodiments of the electrical equipment, the water outlet on the water receiving tank can also be arranged at a position close to the bottom of the side wall of the water receiving tank.

The utility model discloses well electrical equipment drainage system's embodiment does: the specific structure of the drainage system of the electrical equipment is the same as that of the drainage system in the above-described embodiment of the electrical equipment, and will not be described again here.

The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.

Claims

1. An electrical equipment drainage system comprising:

the ventilation cotton is arranged on the rear side of the shutter structure;

the electrical equipment drainage system further includes:

2. The electrical equipment drainage system of claim 1, wherein the drainage pipe is a hose.

3. The electrical equipment drainage system of claim 2, wherein the second end of the drain pipe is connected to a dust cylinder, the dust cotton is disposed in the dust cylinder, and the bottom cover is mounted on the dust cylinder.

4. The electrical equipment drainage system of claim 3, wherein the bottom cover is hinged to the dust cylinder, a magnet for attaching and fixing the bottom cover is provided in the dust cylinder, the dust cotton is provided on an inner side of the magnet, and the magnet is provided with a through hole for passing water therethrough.

5. The electrical equipment drainage system of any one of claims 2 to 4, further comprising a protective pipe for fixing to the electrical equipment and surrounding the exterior of the drainage pipe.

6. The electrical equipment drainage system of claim 5, wherein the guard tube comprises a fixed portion for fixing to the electrical equipment and a removable portion for removable connection to the fixed portion.

7. The electrical equipment drainage system of any one of claims 1 to 4, further comprising a water sensor for fixing to the electrical equipment, wherein a probe of the water sensor is positioned at the top of the water receiving tank to give an alarm and control the electrical equipment to stop running when water reaches the top of the water receiving tank.

8. The electrical equipment drainage system of any one of claims 1 to 4, wherein the louver structure comprises a frame and a plurality of blades mounted in the frame, the blades include a first vertical side and a second vertical side, the first vertical side is located at a position above a rear side of the second vertical side, the blades further include a first inclined side and a second inclined side, the first inclined side is connected between a bottom of the first vertical side and a top of the second vertical side, the second inclined side is connected to a bottom of the second vertical side, the second inclined side extends to an outside of the frame, and both the first inclined side and the second inclined side are gradually inclined downward from the rear to the front.

9. The electrical equipment drainage system of any one of claims 1 to 4, wherein the louver structure comprises a frame and a plurality of blades mounted in the frame, the water receiving tank comprises a bottom plate and a front side plate, a rear side plate, a left side plate and a right side plate which are connected with the bottom plate, notches are respectively arranged on the bottom plate and the front side plate, the water receiving tank is fixed outside the frame of the louver structure through the notches, the rear side plate of the water receiving tank is located at the rear side of the pressing plate, and the pressing plate and the bottom of the ventilation cotton are both located in the water receiving tank.

10. Electrical equipment comprising a cabinet body and a door panel mounted on the cabinet body, the cabinet body comprising side walls, the electrical equipment further comprising a drainage system, characterized in that the drainage system is the same as the electrical equipment drainage system of any of claims 1-9.