CN104617503B - High voltage distribution cabinet - Google Patents

Abstract

The invention discloses a high-voltage power distribution cabinet, which comprises a cabinet body, wherein a cabinet door is arranged at the front part of the cabinet body; a first transverse partition plate and a second transverse partition plate are arranged in the cabinet body, a cavity is formed between the first transverse partition plate and the second transverse partition plate, a cavity is formed between the first transverse partition plate and the top surface of the cabinet body, and a cavity is formed between the second transverse partition plate and the bottom surface of the cabinet body; the first transverse partition plate and the second transverse partition plate are both of hollow structures, and a plurality of air outlets are arranged on the upper surfaces of the first transverse partition plate and the second transverse partition plate; the top surface, the bottom surface, the left side surface and the right side surface of the cabinet body are all hollow structures, and the hollow structures of the left side surface and the right side surface of the cabinet body are communicated with the hollow structures of the top surface and the bottom surface of the cabinet body; the device also comprises a temperature sensor, a controller, a fan, a flexible blast pipe, a circular rain-proof ceiling and a barrel-shaped waterproof device; the invention effectively solves the problem of heat dissipation inside the power distribution cabinet, and the space utilization rate of the cabinet body is extremely high.

Description

High voltage distribution cabinet

technical field

The invention relates to a high-voltage power distribution cabinet, which belongs to the technical field of electric equipment.

Background technique

High-voltage power distribution cabinets refer to electrical products that are used for on-off, control or protection in power system power generation, transmission, distribution, power conversion and consumption, with a voltage level of 3.6kV to 550kV, mainly including high-voltage circuit breakers, Disconnectors and grounding switches, high-voltage load switches, high-voltage automatic reclosers and sectionalizers, high-voltage operating mechanisms, high-voltage explosion-proof power distribution devices, and high-voltage switchgears. The high-voltage switch manufacturing industry is an important part of the power transmission and transformation equipment manufacturing industry, and occupies a very important position in the entire power industry. High-voltage power distribution cabinets are often attacked by water. If water drips vertically from the top of the power distribution cabinet or enters the interior of the power distribution cabinet obliquely, the components of the power distribution cabinet will be soaked in water, resulting in short circuit of electrical equipment and failure to operate normally. In order to solve the problem of rainwater dripping vertically or obliquely from the top of the power distribution cabinet, the whole body of the power distribution cabinet is designed as a sealed structure in the prior art. Although the waterproof problem of the power distribution cabinet is solved to a certain extent, it is ignored. The heat dissipation problem of the power distribution cabinet. There is also a very difficult problem to solve: when there is heavy rain and a lot of water on the ground, it is easy to enter the interior of the power distribution cabinet through the ventilation and heat dissipation holes of the power distribution cabinet or the gap between the cabinet doors, resulting in short circuit of the circuit inside the power distribution cabinet .

Therefore, it seems difficult for the high-voltage power distribution cabinet to solve the two problems of heat dissipation and waterproof at the same time. It is difficult to achieve good waterproof if the heat dissipation is solved, and it seems difficult to solve the heat dissipation problem if the waterproof problem is solved.

In the existing high-voltage power distribution cabinet, the height of each chamber is the same. Some components are very high, while some components are very low. In order to be able to put a higher component, the height of the chamber must be Greater than the height of the higher component, the space utilization rate of this chamber is very low.

Contents of the invention

The technical problems to be solved by the present invention are: first, in the existing high-voltage power distribution cabinet, the height of each chamber is the same, some components are very high, while some components are very low, in order to be able to put a The height of the chamber of the higher component must be greater than the height of the higher component, so that the space utilization rate of the chamber is very low. Second, the high internal temperature of the current high-voltage power distribution cabinet is likely to cause fires. The power distribution cabinet is a place where fires occur frequently in the entire power grid system, and the high internal temperature of the power distribution cabinet is more likely to cause aging of components and reduce service life. Third, when the rainstorm comes, the water on the ground is very deep, and the water on the ground can easily enter the inside of the power distribution cabinet through the cabinet door gap or the ventilation and cooling holes.

In order to solve the above technical problems, the technical solution adopted in the present invention is: a high-voltage power distribution cabinet, including a cabinet body, and a cabinet door is arranged at the front of the cabinet body; A partition, a chamber is formed between the first transverse partition and the second transverse partition, a chamber is formed between the first transverse partition and the top surface of the cabinet, and a chamber is formed between the second transverse partition and the bottom surface of the cabinet. The chamber; the first transverse partition and the second transverse partition are both hollow structures, and the upper surfaces of the first transverse partition and the second transverse partition are provided with a plurality of air outlets;

The top, bottom, left and right sides of the cabinet are all hollow structures, and the hollow structures on the left and right sides of the cabinet are connected to the hollow structures on the top and bottom of the cabinet ;

The hollow structures of the first transverse partition and the second transverse partition are connected with the hollow structures of the left side and the right side;

An air inlet is arranged on the upper surface of the top surface of the cabinet, and another air inlet is arranged on the lower surface of the bottom surface of the cabinet;

Multiple air outlets are provided on the inner surfaces of the left side and the right side of the cabinet;

A plurality of air outlets are provided on the upper surfaces of the first transverse partition and the second transverse partition;

The middle position of the upper surface of the first transverse partition is raised upwards, and the lower surface of the first transverse partition corresponds to the raised part of the upper surface and is recessed upward;

The middle position of the upper surface of the second transverse partition is depressed downward, and the lower surface of the second transverse partition is convex downward corresponding to the concave part of the upper surface;

Also includes temperature sensor, controller, fan, flexible air supply pipe;

The temperature sensor is set inside the cabinet, the temperature signal collected by the temperature sensor is input to the controller, and the controller controls the start and stop of the fan;

The flexible air supply pipe includes an input port and two output ports. The air outlet of the fan is connected to the input port of the flexible air supply pipe, and the output port of the flexible air supply pipe is respectively connected to the air inlets on the top and bottom of the cabinet;

It also includes a circular rain-proof roof and a barrel-shaped waterproof device;

The cabinet is set in the middle of the barrel-shaped waterproof device, and the circular rain-proof ceiling is set on the top of the cabinet;

The projection of the circular rain-shielding roof perpendicular to the ground covers the projection of the barrel-shaped waterproof device perpendicular to the ground;

The distance between the cabinet door of the cabinet body and the side of the barrel-shaped waterproof device is greater than the width of the cabinet door;

Both the bottom surface and the side of the barrel-shaped waterproof device have waterproof performance;

The bottom surface of the barrel-shaped waterproof device is parallel to the ground.

Further, the cabinet door of the cabinet body is provided with cooling holes.

Further, the heat dissipation holes are provided with rain-shielding rims extending outward.

Further, the described controller adopts MSP430 single-chip microcomputer.

Further, the flexible air supply pipe is made of film material.

Compared with the prior art, the present invention has the advantages that: the present invention adopts a special design structure, which effectively solves the problem of heat dissipation inside the power distribution cabinet, and the heat dissipation effect is very good. For the power distribution cabinet, when the rainstorm comes and there is a lot of water on the ground, it will not enter the inside of the power distribution cabinet through the cabinet door gap or the ventilation and cooling holes; the traditional power distribution cabinet considers the need for waterproofing, and the power distribution There are not many heat dissipation holes in the cabinet. Due to the special structure of the present invention, it is impossible for ground water to enter the interior of the power distribution cabinet. Therefore, the present invention can provide more heat dissipation holes, which is more conducive to the heat dissipation of the internal circuits of the power distribution cabinet. The service life of electrical equipment in the distribution cabinet is extended. The projection of the circular rain-proof ceiling perpendicular to the ground covers the projection of the cylinder-shaped waterproof device perpendicular to the ground, so as to ensure that the rainwater falling from the sky will not fall into the interior of the cylinder-shaped waterproof device; the cabinet door and the drum The distance between the sides of the shaped waterproof device is greater than the width of the cabinet door, thereby ensuring that the cabinet door can be opened normally. The space utilization rate of the high-voltage power distribution cabinet of the present invention is very high. The height of each chamber is different, and the height of the same chamber is also different. In the same chamber, components with a higher height can be placed, and components with a higher height can also be placed. Low components, high utilization rate of cabinet internal space.

The top surface, bottom surface, left side, and right side of the cabinet body are all hollow structures, and the external cold air can be evenly distributed to the interior of the cabinet body through this hollow structure.

Description of drawings

Fig. 1 is a schematic structural diagram of a power distribution cabinet of the present invention.

Fig. 2 is a schematic structural view of the body part of the power distribution cabinet of the present invention.

Fig. 3 is a schematic top view of the present invention.

Among them, 1 is the cabinet body, 21 is the first horizontal partition, 22 is the second horizontal partition, 31 is the air inlet, 32 is the air inlet, 41 is the air outlet, 42 is the air outlet, 6 is the barrel-shaped waterproof Device, 7 is a circular rain-proof ceiling.

detailed description

The invention will be described in further detail below in conjunction with the accompanying drawings.

As shown in Figures 1, 2, and 3, the high-voltage power distribution cabinet includes a cabinet body, and a cabinet door is provided at the front of the cabinet body; a first transverse partition and a second transverse partition are arranged inside the cabinet, and the first transverse partition and the second A chamber is formed between the two transverse partitions, a chamber is formed between the first transverse partition and the top surface of the cabinet, and a chamber is formed between the second transverse partition and the bottom surface of the cabinet; the first transverse partition and the second transverse partition form a chamber. The two transverse partitions are both hollow structures, and the upper surfaces of the first transverse partition and the second transverse partition are provided with a plurality of air outlets;

The top surface, bottom surface, left side, and right side of the cabinet are all hollow structures, and the hollow structures on the left and right sides of the cabinet are connected to the hollow structures on the top and bottom of the cabinet. ; The hollow structures of the first transverse partition and the second transverse partition are connected with the hollow structures on the left side and the right side; an air inlet is arranged on the upper surface of the top surface of the cabinet, and the bottom surface of the cabinet Another air inlet is set on the lower surface of the cabinet; multiple air outlets are set on the inner surface of the left side and right side of the cabinet; multiple air outlets are set on the upper surface of the first transverse partition and the second transverse partition The middle position of the upper surface of the first transverse partition is raised upwards, and the lower surface of the first transverse partition is concave upward corresponding to the raised part of the upper surface; the middle position of the upper surface of the second transverse partition is concave downward, and the second transverse partition The lower surface of the plate protrudes downward corresponding to the concave part of the upper surface;

Also includes temperature sensor, controller, fan, flexible air supply pipe;

The temperature sensor is installed inside the cabinet, and the temperature signal collected by the temperature sensor is input to the controller, which controls the start and stop of the fan; the flexible air supply pipe includes one input port and two output ports, and the air outlet of the fan is connected to the flexible air supply pipe The input port of the flexible air supply pipe and the output port of the flexible air supply pipe are respectively connected to the air inlets on the top and bottom of the cabinet; it also includes a circular rain-proof ceiling and a drum-shaped waterproof device; the cabinet is set in the middle of the drum-shaped waterproof device, The circular rain-proof ceiling is set on the top of the cabinet; the projection of the circular rain-proof ceiling perpendicular to the ground covers the projection of the cylindrical waterproof device perpendicular to the ground; between the cabinet door and the side of the cylindrical waterproof device The distances are greater than the width of the cabinet door; the bottom surface and the side of the barrel-shaped waterproof device have waterproof performance; the bottom surface of the barrel-shaped waterproof device is parallel to the ground.

Wherein, the cabinet door of the cabinet body is provided with cooling holes. Moreover, the cooling holes are provided with rain-shielding edges extending outward. Among them, the controller adopts MSP430 single-chip microcomputer. The flexible air supply pipe is made of film material.

Partial description of the space utilization rate of the present invention: the structure of the transverse partition of the present invention makes the height of each of the three chambers of the cabinet body from top to bottom different, and components with higher heights can be placed in each chamber , components with low height can also be placed, and the space utilization rate is very high, unlike the traditional cabinet where each chamber is made very high. If the traditional power distribution cabinet contains 3 chambers, then the entire power distribution cabinet The height is very high. Although the distribution cabinet of the present invention includes 3 chambers, the height of the distribution cabinet is much smaller than that of the traditional distribution cabinet.

Description of the principle of the heat dissipation part of the present invention: Since the horizontal partition, the top surface, the bottom surface, the left side, and the right side of the cabinet are all hollow structures, when the temperature sensor detects that the internal temperature of the cabinet is higher than the preset temperature value, the controller Control the start of the fan. At this time, the fan sends the air outside the cabinet into the hollow structure through the flexible air supply pipe. Since there are multiple air outlets on the upper surface of the horizontal partition, multiple air outlets are also set on the left and right sides. The air outlet, at this time, the external cold air will enter the interior of the cabinet through the air outlet and be evenly distributed inside the cabinet, so as to achieve the effect of cooling.

The principle of the waterproof part of the present invention explains: the barrel-shaped waterproof device isolates the accumulated water on the ground from the cabinet, so that even in heavy rain, the accumulated water on the ground will not enter the inside of the cabinet; at the same time, the circular rain-proof ceiling effectively prevents the When rainwater enters the cabinet, since the projection of the circular rain-shielding roof perpendicular to the ground covers the projection of the cylindrical waterproof device perpendicular to the ground, the rainwater in the sky will not enter the interior of the cylindrical waterproof device, so the cabinet is located The middle of the barrel-shaped waterproof device is very safe, and no rainwater will enter. It should be emphasized that the distance between the cabinet door of the cabinet body and the side of the barrel-shaped waterproof device is greater than the width of the cabinet door. Only in this way can the cabinet door of the power distribution cabinet be opened normally and smoothly. In addition, the projection of the circular rain-shielding roof perpendicular to the ground covers the projection of the cylindrical waterproof device perpendicular to the ground. Only in this way can the rainwater falling from the sky not enter the interior of the cylindrical waterproof device.

Claims (5)

1. high voltage power distributing cabinet, including cabinet, cabinet front portion arranges cabinet door；It is characterized in that, set inside cabinet Put the first lateral partitions and the second lateral partitions, between the first lateral partitions and the second lateral partitions, form chamber, Form chamber between first lateral partitions and the end face of cabinet, formed between the second lateral partitions and the bottom surface of cabinet Chamber；First lateral partitions and the second lateral partitions are all hollow structures, the first lateral partitions and second laterally every The upper surface of plate is respectively provided with multiple gas outlet；

The end face of cabinet, bottom surface, left surface, right flank are all hollow structures, and the left surface of cabinet, the right side The hollow structure of side and the end face of cabinet, bottom surface hollow structure between connect；

First lateral partitions, the hollow structure of the second lateral partitions and left surface, right flank hollow structure between It it is connection；

The upper surface of the end face of cabinet arranges an air inlet, and the lower surface of the bottom surface of cabinet arranges another air inlet Mouthful；

The left surface of cabinet, the inner surface of right flank are respectively provided with multiple gas outlet；

The upper surface of the first lateral partitions and the second lateral partitions is respectively provided with multiple gas outlet；

The centre position of the first lateral partitions upper surface raises up, and the first lateral partitions lower surface corresponds to upper table Face bossing upwards caves in；

The centre position concave downward of the second lateral partitions upper surface, the second lateral partitions lower surface corresponds to upper table Face female is downwardly convex；

Also include temperature sensor, controller, blower fan, flexible ajutage；

Temperature sensor is arranged at inside cabinet, and the temperature signal of temperature sensor collection is input to controller, control Device processed controls the start and stop of blower fan；

Flexible ajutage comprises an input port and two delivery outlets, and the air outlet of blower fan connects flexible ajutage Input port, the delivery outlet of flexible ajutage connects the air inlet of cabinet end face and bottom surface respectively；

Also include that circle is kept off the rain ceiling, barrel-shaped water-tight device；

Cabinet is arranged at the centre of barrel-shaped water-tight device, and the circle ceiling that keeps off the rain is arranged at the top of cabinet；

The circle ceiling that keeps off the rain is perpendicular to the projection on ground and covers barrel-shaped water-tight device and be perpendicular to the throwing on ground Shadow；

Distance between cabinet door and the side of barrel-shaped water-tight device of cabinet is all higher than the width of cabinet door；

The bottom surface of described barrel-shaped water-tight device and side are respectively provided with water resistance；

The bottom surface of described barrel-shaped water-tight device is parallel to ground.

High voltage power distributing cabinet the most according to claim 1, it is characterised in that on the cabinet door of described cabinet It is provided with louvre.

High voltage power distributing cabinet the most according to claim 2, it is characterised in that described louvre is provided with The outward extending cover edge that keeps off the rain.

High voltage power distributing cabinet the most according to claim 1, it is characterised in that described controller uses MSP430 single-chip microcomputer.

High voltage power distributing cabinet the most according to claim 1, it is characterised in that described flexible ajutage is adopted Make with thin-film material.