CN203340466U - Waterproof and dustproof structure of outdoor cabinet and outdoor cabinet adopting the structure - Google Patents

Abstract

The utility model discloses a waterproof dustproof structure for an outdoor cabinet, and the outdoor cabinet equipped with the waterproof dustproof structure. A side wall of a cabinet is provided with more than two ventilation openings upwards with intervals, each shutter is respectively arranged outside the ventilation opening, a wind channel is arranged between each ventilation opening and the corresponding shutter, the shutters have openings which are arranged from up to down and are respectively not higher than the corresponding ventilation opening, and a lower opening edge of the lowest opening of the shutters levels with a lower wall face of the corresponding wind channel. The waterproof dustproof structure has a simple structure, not only realizes prolongation of service life of the cabinet, but also guarantees that electrical equipment mounted in the cabinet constantly operates in an excellent inner environment, further improves a safety protection grade of the outdoor cabinet and solves a problem of draining incapability of interlayers at an air inlet and an air outlet of a cabinet in the prior art.

Description

Waterproof and dustproof structure of outdoor cabinet and outdoor cabinet adopting the structure

technical field

The utility model belongs to the technical field of outdoor electrical cabinets, in particular to a waterproof and dustproof structure of an outdoor cabinet conforming to the national IP55 protection level and the outdoor cabinet adopting the structure. the

Background technique

As the carrier of automation equipment in the smart grid, outdoor cabinets must provide a nearly indoor working environment to ensure the normal operation and work of their automation equipment in harsh environments such as temperature, humidity, solar radiation, wind and sand, and rain. Chinese Utility Model Patent Publication Document CN1756012A discloses a waterproof and dustproof power distribution cabinet. At least one of the side panels of the power distribution cabinet is provided with an upper and lower sandwich structure. The air outlet and the air inlet are equipped with an axial flow fan, the inner wall of the upper interlayer is provided with an air outlet, and the outer walls of the upper and lower interlayers are all waterproof partitions with louvers, so that each interlayer forms a connection between the louvers and the corresponding air inlet and exhaust. The position of the air inlet and outlet on the inner wall of the corresponding interlayer is higher than the position of the corresponding louvers, so that a height difference is formed in the air duct between the air inlet, the exhaust outlet and the corresponding louvers, and the height difference is formed at the air inlet. There are also waterproof and dustproof covers and dust filter nets on the outside of the air outlet. This kind of waterproof and dustproof power distribution cabinet uses the height difference between the air inlet, the air outlet and the corresponding louvers, and the waterproof and dustproof cover and the dust filter set outside the air inlet and the air outlet to realize the waterproof and dustproof of the cabinet body. During the process, due to the blocking of water vapor by the waterproof and dustproof cover, water vapor will accumulate in the interlayer after passing through the louvers, and the accumulated water vapor will condense into water droplets and stay in the interlayer and cannot flow out. The re-evaporation of the retained water will increase the content of water vapor at the air inlet, which will cause the filter failure of the waterproof dustproof cover and cause water vapor to enter the cabinet, affecting the normal operation of the electrical components in the cabinet. the

Utility model content

The purpose of the utility model is to provide a waterproof and dustproof structure of an outdoor cabinet to solve the problem that the interlayer at the air inlet and outlet of the existing cabinet cannot be drained. the

The technical solution of the waterproof and dustproof structure of the present utility model is: a waterproof and dustproof structure of an outdoor cabinet, including a vent opening on the wall of the cabinet body and a louver covering the outside of the vent opening. An air duct is provided, the louvers have openings arranged up and down and not higher than the height of the air vents, and the lower edge of the lowermost opening of the louvers is flush with the lower wall of the air duct. the

The lower wall surface of the air duct is inclined downward from the inside to the outside. the

The inside of the opening of the louver is covered with gauze. the

Filter cotton is provided on the outside cover of the air vent. the

The utility model also discloses an outdoor cabinet adopting the above-mentioned dustproof and waterproof structure. The technical scheme of the outdoor cabinet is: an outdoor cabinet, including a cabinet body, at least one side wall of the cabinet body is vertically spaced with There are more than two ventilation openings, each ventilation opening is covered with louvers respectively, and an air duct is arranged between each ventilation opening and the corresponding louvers, and the louvers have openings arranged up and down and not higher than the height of the corresponding ventilation openings. The lower edge of the lowermost opening of the shutter is flush with the lower wall of the corresponding air duct. the

The lower wall surfaces of each of the air ducts are inclined downward from the inside to the outside. the

The inner side of the louver is also covered with gauze. the

A filter cotton is also covered outside the air vent. the

The vent located at the upper part of the cabinet is an air exhaust port, the vent located at the lower part of the cabinet is an air inlet, and an axial flow fan is also arranged inside the air inlet. the

The utility model is to move down the louvers arranged on the side wall of the outdoor cabinet outside the air vents, so that the lower edge of the lowermost opening of the louvers is flush with the lower wall of the air duct, so that the condensed water in the air duct can pass through the louvers in time. Discharge, avoiding water staying in the air duct, its simple structure, not only effectively prolongs the service life of the cabinet, but also ensures that the electrical equipment installed in the cabinet is always operating in a good internal environment, so that the safety protection level of the outdoor cabinet is further improved improve. the

Description of drawings

Fig. 1 is the partial structure schematic diagram of the specific embodiment of outdoor cabinet of the present invention;

Fig. 2 is an enlarged view of part A in Fig. 1 .

Detailed ways

The specific embodiment of the outdoor cabinet of the present utility model is shown in Fig. 1 and Fig. 2, and the outdoor cabinet is provided with three ventilating devices vertically spaced from the bottom to the top on at least one side wall 100 of the outdoor cabinet for cooling the cabinet. Wherein, the ventilation device at the top is an exhaust device 101 for discharging the high temperature in the cabinet, and the two ventilation devices at the middle and lower parts are both air inlet devices 102 for supplying air to the cabinet, and the air inlet device 102 and the exhaust device 101 all have vents on the side wall 100 of the cabinet and louvers that are placed outside the corresponding vents, wherein the vents located in the air inlet device 102 are air inlets, and the vents located in the exhaust device 101 are air exhaust. The air exhaust device 101 and the air intake device 102 are provided with a dustproof and waterproof structure for preventing impurities such as water vapor and dust from entering the interior of the cabinet through the corresponding ventilation ports. the

In this embodiment, the dust-proof and waterproof structure in the air inlet device 102 is taken as an example. As shown in FIG. An air inlet 2 is provided on the upper part of the groove bottom wall located in the groove 1, and a louver 3 flush with the side wall 100 of the cabinet is provided on the groove cover of the groove 1, and the lower part of the louver 3 is provided with openings arranged up and down, and the air inlet There is a gap between 2 and the louver 3, and the groove walls around the groove 1 enclose the air duct 4 connecting the louver 3 and the air inlet 2, and the openings of the louver 3 are not higher than the air inlet 2, wherein the bottom of the louver 3 The lower edge of the opening is flush with the lower wall surface 5 of the air duct 4, so that the condensed water in the air duct 4 can be discharged in time. The inside of the opening of the louver 3 is also covered with gauze (not shown in the figure), and the outside of the air inlet 2 is covered with filter cotton 6 . In order to strengthen the ventilation inside the cabinet and improve the heat dissipation efficiency, an axial flow fan 7 is also fixed inside the air inlet. the

The structure of the air exhaust device 101 and the air inlet device 102 is basically the same, the difference between the two is that no axial flow fan is installed in the air outlet of the air exhaust device 101 . the

When the cabinet is working outdoors, outside air containing impurities such as water vapor and dust enters the air duct 4 through the louvers 3, and the dust with larger particles is blocked by the gauze installed inside the louvers 3, while the dust and water vapor with smaller particles are blocked by the air duct 4. The filter cotton 6 set outside the air inlet 2 is blocked, so that only dry and clean air enters the cabinet, and the water droplets formed after the water vapor condenses in the air duct 4 flow to the lower wall 5 of the air duct 4 and pass through the shutters 3 The bottom opening flows out to prevent water from remaining in the air duct 4 . When the temperature in the cabinet reaches a certain limit, the axial flow fan 7 in the air inlet device 102 starts to work, and the air enters the cabinet from the air inlet device 102 at the middle and lower parts of the cabinet body to drive the heat flow generated during the operation of the electronic equipment to rise. Finally, the cabinet body is discharged from the air outlet and the louvers in the uppermost exhaust device 101 to form air circulation and reduce damage to components caused by local heat concentration, thereby prolonging the service life of the outdoor cabinet. the

Claims (9)

1. the waterproof and dustproof structure of an outdoor cabinet, comprise and be opened in the ventilating opening on the cabinet wall and cover at the outer shutter of ventilating opening, be arranged with air channel between ventilating opening and shutter, described shutter has arranges and up and down not higher than the opening of ventilating opening height, it is characterized in that, under the opening of described shutter in below, opening's edge flushes with the lower wall surface in described air channel.

2. the waterproof and dustproof structure of outdoor cabinet according to claim 1, is characterized in that, the lower wall surface in described air channel is tilted to lower setting from inside to outside.

3. the waterproof and dustproof structure of outdoor cabinet according to claim 1 and 2, is characterized in that, in the opening inboard of described shutter, is covered with gauze.

4. the waterproof and dustproof structure of outdoor cabinet according to claim 1 and 2, is characterized in that, in described ventilating opening outside mask, is provided with filter cotton.

5. one kind adopts the outdoor cabinet of waterproof and dustproof structure as claimed in claim 1, comprise cabinet, vertically be interval with plural ventilating opening to a side sidewall that is less than cabinet, each ventilating opening is covered with respectively shutter outward, be arranged with air channel between each ventilating opening and corresponding shutter, described shutter has arranges up and down and, not higher than the opening of corresponding ventilating opening height, it is characterized in that, the lower opening's edge of the lower opening of described shutter flushes with the lower wall surface in corresponding air channel.

6. outdoor cabinet according to claim 5, is characterized in that, the lower wall surface in described each air channel is by interior outward-dipping downward setting.

7. according to the described outdoor cabinet of claim 5 or 6, it is characterized in that, in described shutter inboard, also be covered with gauze.

8. according to the described outdoor cabinet of claim 5 or 6, it is characterized in that, in the described ventilating opening outside, also be covered with filter cotton.

9. according to the described outdoor cabinet of claim 5 or 6, it is characterized in that, the described ventilating opening that is positioned at cabinet top is exhaust outlet, and the ventilating opening that is positioned at the cabinet bottom is air inlet, in the inboard of described air inlet, also is provided with axial flow blower.

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