CN103327776A - Waterproof and dustproof structure of outdoor equipment cabinet and outdoor equipment cabinet with waterproof and dustproof structure - Google Patents

Abstract

The invention discloses a waterproof and dustproof structure of an outdoor cabinet and an outdoor cabinet adopting the structure. More than two ventilation openings are vertically spaced on one side wall of the cabinet body, and each ventilation opening is respectively covered with There are louvers, and air ducts are arranged between each vent and the corresponding louvers. The louvers have openings arranged up and down and not higher than the height of the corresponding vents. flush. The invention has a 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, and solves the problem of the existing cabinet 1. The problem that the interlayer at the air outlet cannot drain water.

Description

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

technical field

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

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 Invention Patent Publication Document CN1756012A discloses a waterproof and dustproof power distribution cabinet, in which at least one side panel of the power distribution cabinet is provided with an upper and lower sandwich structure, and the inner wall of the lower sandwich is provided with an air inlet , the air inlet is 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 waterproof partitions with louvers, so that each interlayer forms a connection between the louvers and the corresponding air inlet and air outlet. The air duct, wherein, the position of the air inlet and the air outlet on the inner wall of the corresponding interlayer is higher than the position of the corresponding louver, so that a height difference is formed in the air duct between the air inlet, the air outlet and the corresponding louver, and the difference between the air inlet and the corresponding louver is formed. The outside of the air outlet is also provided with a waterproof dustproof cover and a dust filter net. 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.

Contents of the invention

The purpose of the present invention 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 technical solution of the waterproof and dustproof structure of the present invention 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. There is an air duct, 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 lower wall surface of the air duct is inclined downward from the inside to the outside.

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

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

The invention also discloses an outdoor cabinet adopting the above-mentioned dustproof and waterproof structure. The technical solution of the outdoor cabinet is: an outdoor cabinet, including a cabinet body, at least two There are more than two ventilating openings, each ventilating opening is covered with louvers respectively, and an air duct is arranged between each ventilating opening and the corresponding louver, and the louver has an opening arranged up and down and not higher than the height of the corresponding ventilating opening, and the louver The lower edge of the lowermost opening is flush with the lower wall of the corresponding air channel.

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

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

A filter cotton is also covered outside the air vent.

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 present invention moves down the louvers arranged on the side wall of the outdoor cabinet outside the air vent 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 be discharged in time through the louvers. , to avoid water staying in the air duct, and 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, which further improves the safety protection level of the outdoor cabinet .

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 invention is shown in Fig. 1 and Fig. 2. At least on one side wall 100 of the outdoor cabinet, three ventilation devices for cooling the cabinet are vertically spaced from the bottom to the top, 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 in the middle and lower parts are both air intake devices 102 for supplying air to the cabinet. The air intake device 102 and the exhaust device 101 All have vents on the side wall 100 of the cabinet and louvers covering 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 outlets , in the exhaust device 101 and the air intake device 102, there are dust-proof and waterproof structures for preventing impurities such as water vapor and dust from entering the inside of the cabinet through the corresponding vents.

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 5 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 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 .

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, reduce damage to components caused by local heat concentration, and prolong the service life of the outdoor cabinet.

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, between ventilating opening and shutter, be arranged with the air channel, described shutter has the opening of arranging up and down and not being higher than the ventilating opening height, it is characterized in that, described shutter is in that opening's edge flushes with the lower wall surface in described air channel under the opening of below.

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, is covered with gauze in the opening inboard of described shutter.

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

5. one kind is adopted the as claimed in claim 1 outdoor cabinet of waterproof and dustproof structure, comprise cabinet, to a side sidewall that is less than cabinet, vertically be interval with plural ventilating opening, each ventilating opening is covered with respectively shutter outward, be arranged with the air channel between each ventilating opening and the corresponding shutter, described shutter has the opening of arranging up and down and not being higher than 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 claim 5 or 6 described outdoor cabinets, it is characterized in that, also be covered with gauze in described shutter inboard.

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

9. according to claim 5 or 6 described outdoor cabinets, 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, also is provided with axial flow blower in the inboard of described air inlet.

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