CN205284024U - Outdoor type SVG ventilation structure - Google Patents

Abstract

The utility model relates to an outdoor static var generator ventilation structure, comprising a cabinet, the bottom of the cabinet is provided with an air inlet plate, an SVG module and an inner air outlet duct are arranged inside the cabinet, and the opening at the bottom of the shell of the SVG module corresponds to The position of the air inlet plate is set, and the top opening of the shell of the SVG module is connected to the inner air outlet duct, and the air outlet of the inner air outlet duct communicates with the outside of the cabinet. The utility model has a simple structure, directly adopts the fan provided by the existing SVG module without adding a new fan, reduces the cost, and has good heat dissipation effect.

Description

An Outdoor Static Var Generator Ventilation Structure

technical field

The utility model relates to an air duct design of an outdoor static var generator (SVG) in the field of power quality industry.

Background technique

At present, domestic outdoor static var generators (SVG) mainly use an ordinary SVG module to be installed in an outdoor cabinet with a high protection level, and then, in addition to the fan that comes with the SVG module, it must be matched in the upper part of the outdoor cabinet. A heat dissipation fan with sufficient air volume will discharge the heat of the SVG outside the cabinet. Generally, two additional fans must be installed to meet the demand.

The problems with this approach are:

1. It is difficult to select the type of fan: SVG has a large heat loss, and it is difficult to match the fan.

2. The fan damage rate is high: working outdoors at high temperature for a long time reduces the life of the fan.

3. Low protection level: Outdoor cabinets must meet dustproof and waterproof requirements, and the protection level must be at least IP44. To meet this standard, the wind pressure and air volume of the fan will be reduced, which cannot meet the requirements.

These are all the weak points of prior art.

Contents of the invention

The technical problem to be solved by the utility model is that the existing air duct design needs to install more than one fan in addition to the fan provided by the SVG module to achieve the effect of heat dissipation, which is costly, difficult to install, high maintenance rate, and poor protection .

In order to solve the above technical problems, the technical solution adopted by the utility model is: an outdoor static var generator ventilation structure, including a cabinet, the bottom of the cabinet is provided with an air inlet plate, and the cabinet is provided with an SVG module and an inner air outlet duct , the SVG module is wall-mounted in the outdoor cabinet, the bottom opening of the SVG module shell is set corresponding to the position of the air inlet plate, the top opening of the SVG module shell is connected to the inner air outlet, and the air outlet of the inner air outlet is connected to the Connect to the outside of the cabinet.

The SVG module is hung on the wall in the outdoor cabinet, the air outlet of the SVG module enters from the bottom and exits from the top, and the upper air outlet directly discharges the lost heat out of the cabinet through the internal air duct, and then dissipates the heat downward through the external ventilation duct . By setting the air duct, the heat is concentrated in the air duct, unlike the existing technology, which diffuses the heat in the outdoor cabinet and discharges it with a cooling fan. After concentration, the heat discharge does not need to add an additional fan, and the heat dissipation effect is good and the cost is low. Low, no fan maintenance troubles.

Furthermore, there is an external air duct outside the cabinet. The internal and external air ducts are connected and both form a 90-degree bend. The air duct encloses the air outlet of the inner air outlet air duct. The outdoor air duct is set to effectively prevent the rainwater outside the cabinet from entering the cabinet, and realize the waterproof effect on the basis of ensuring the cooling effect of the air outlet.

Further, the top opening of the casing of the SVG module is also provided with a sealing strip, and the inner air outlet air duct is aligned with the top opening of the casing of the SVG module and squeezes the sealing strip at the opening. The setting of the sealing strip effectively enhances the sealing effect of the entire air duct, further ensuring that the heat is gathered in the air duct and cannot be diffused into the entire cabinet.

The utility model has the advantages of:

(1) Prevent the heat loss of the SVG module from spreading in the outdoor cabinet, reduce the ambient temperature in the cabinet, and enable the SVG module to work normally.

(2) The independent heat dissipation air duct can reduce the number of heat dissipation fans, thereby improving the efficiency of the whole machine and reducing failure points;

(3) The volume of the outdoor SVG cabinet is reduced to reduce the cost.

Description of drawings

Fig. 1 is the front view of opening the door of the utility model.

Fig. 2 is a door opening bottom view of the present utility model.

Fig. 3 is A-A sectional view of the utility model.

Fig. 4 is a schematic diagram of the three-dimensional structure of the utility model.

Among them: 1-outdoor cabinet; 2-SVG module; 3-inner air outlet duct; 4-outdoor air duct; 5-inlet air board; 6-air outlet board; 7-sealing strip.

detailed description

Below in conjunction with accompanying drawing, technical content of the present utility model is described:

As shown in Figures 1 to 4, the utility model includes an outdoor cabinet 1, the bottom of the outdoor cabinet 1 is provided with an air inlet plate 5, the cabinet 1 is provided with an SVG module 2 and an inner air outlet duct 3, and the SVG module 2 is hung on the wall In the outdoor cabinet 1, the bottom opening of the shell of the SVG module 2 is set corresponding to the position of the air inlet plate 5, and the top opening of the shell of the SVG module 2 is connected to the inner air outlet duct 3, and the air outlet of the inner air outlet duct 3 is connected to the cabinet 1 external connection.

The implementation process of the whole air duct is as follows:

The air inlet plate 5 is fixed on the bottom of the outdoor cabinet 1, so that the air inlet plate 5 can be disassembled to facilitate cleaning the accumulated dust at the air inlet;

The SVG module 2 is installed inside the outdoor cabinet 1 by wall-mounting and fixed with screws. Adhesive sealing strip 7 around the air outlet of SVG module 2;

Connect the air outlet of the SVG module 2 to the back of the outdoor cabinet 1 with the internal air outlet duct 3 . One end of the internal air outlet duct 3 with a flange is fixed inside the back of the outdoor cabinet 1 and aligned with the air outlet of the outdoor cabinet 1, while the other end is aligned with the air outlet of the SVG module 2 and squeezes the seal on the air outlet of the SVG module 2. Strip 7;

The flanged end of the external air outlet duct 4 is fixed on the outside of the back of the outdoor cabinet, with the air outlet facing downward;

The air outlet plate 6 is fixed on the bottom of the external air outlet duct 4;

After the installation is completed, when the SVG module 2 is working, the heat is taken out of the cabinet by the wind speed of its own cooling fan unit through the sealed air duct.

Claims (3)

1. An outdoor static var generator ventilation structure, characterized in that it includes a cabinet, the bottom of the cabinet is provided with an air inlet plate, the cabinet is provided with an SVG module and an inner air outlet duct, and the SVG module is hung on the outdoor cabinet Inside, the bottom opening of the shell of the SVG module is set corresponding to the position of the air inlet plate, and the top opening of the shell of the SVG module is connected to the inner air outlet, and the air outlet of the inner air outlet communicates with the outside of the cabinet. 2. An outdoor static var generator ventilation structure according to claim 1, characterized in that: the outside of the cabinet is also equipped with an external air duct, and the internal and external air ducts are connected and both form a 90-degree bend , the inner and outer air outlet ducts are connected to form a semicircular air duct, and at the joint, the outer air outlet duct encloses the air outlet of the inner air outlet duct. 3. An outdoor static var generator ventilation structure according to claim 1, characterized in that: the top opening of the shell of the SVG module is also provided with a sealing strip, and the inner air outlet is aligned with the SVG module the top opening of the housing and squeeze the sealant strip at the opening.