CN212258233U - A low-voltage withdrawable switch cabinet with good heat dissipation effect - Google Patents

Abstract

The utility model discloses a low pressure pull-out type cubical switchboard that radiating effect is good, the intelligent cabinet temperature adjusting device comprises a cabinet body, the front of the cabinet body is provided with the unit drawer, the back bottom of the cabinet body is provided with the power house, upper portion is provided with the heat transfer room in the back of the cabinet body, the utility model discloses a set up heat exchanger, air-blower, water tank, circulating water pump, circulating pipe, heat dissipation seam, air outlet, air intake, filter core, intake pipe, radiator fan, compensatied the respective defect of forced air cooling and water-cooling, solved the not enough problem of low pressure pull-out type cubical switchboard cooling, reached good radiating effect.

Description

A low-voltage withdrawable switch cabinet with good heat dissipation effect

technical field

The utility model relates to the technical field of electric equipment, in particular to a low-voltage withdrawable switch cabinet with good heat dissipation effect.

Background technique

The switch cabinet is a kind of electrical equipment. The outside line of the switch cabinet enters the main control switch in the cabinet, and then enters the sub-control switch. Each entry is set according to its needs. The main function of the switch cabinet is to switch, control and protect electrical equipment in the process of power generation, transmission, distribution and power conversion in the power system. Most of the existing low-voltage withdrawable switch cabinets have relatively simple heat dissipation mechanisms, and when the load of the equipment in the cabinet is high, they cannot meet the heat dissipation requirements.

Some low-voltage draw-out switch cabinets are cooled by water cooling. CN208209335U proposes a low-voltage draw-out switch cabinet with a heat dissipation mechanism, which conducts water cooling and heat dissipation through a heat dissipation water tank, a circulating water pipe and a hot water tank, but there is no ventilation between the inside of the cabinet and the outside world. The air flow of the cabinet is poor, and the heat exchange area of the hot water tank is limited, and only one surface is used to absorb the heat of the cabinet, which affects the heat dissipation effect of the water cooling. Other utility models propose to set the circulating water pipe inside the unit drawer, directly Absorb the heat generated inside the unit drawer. Although the heat exchange area is much larger than that of the hot water tank, since the unit drawers are all electrical facilities, if the circulating water pipe is damaged, or the water tank leaks and drips along the circulating water pipe, it will cause serious damage. .

Utility model content

The utility model provides a low-voltage draw-out switch cabinet with good heat dissipation effect, which has good heat dissipation effect.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a low-voltage withdrawable switch cabinet with good heat dissipation effect, comprising a cabinet body, the front of the cabinet body is provided with a unit drawer, and the back bottom of the cabinet body is provided with a power A heat exchange chamber is arranged in the middle and upper part of the back of the cabinet, a heat exchanger is arranged inside the heat exchange room, a blower is arranged inside the power room, and the blower is connected with an air intake pipe, and the air intake pipe is another One end communicates with the unit drawer, the power chamber is provided with a water tank, the water tank is connected with a circulating water pump, and the circulating water pump is connected with a circulating water pipe, and the circulating water pipe enters the heat exchange chamber and communicates with the heat exchanger. The other end of the circulating water pipe is communicated with the top of the water tank, and the shell side of the heat exchanger is communicated with the unit drawer.

Preferably, an air outlet is provided on the rear side of the top of the cabinet, and the other end of the air outlet is communicated with the unit drawer.

Preferably, an air inlet is arranged on the rear side of the bottom of the cabinet, the other end of the air inlet is communicated with the blower, and a filter element is arranged in the air inlet.

Preferably, the rear side of the cabinet is provided with heat dissipation slits.

Preferably, a cooling fan is provided on the surface of the water tank close to the rear side of the cabinet.

Preferably, the circulating water pipes are arranged in parallel.

Compared with the prior art, the beneficial effects of the present utility model are as follows:

1. By setting the blower, the air inlet and the air outlet, the utility model makes the air with lower outside temperature continuously enter the inside of the cabinet, and flows between the unit drawers to take away the heat generated in the unit drawers, which solves the problem of using water cooling alone. When cooling, the air flow in the cabinet is checked, and the heat dissipation effect is not good.

2. The present utility model cools the hot air discharged from the previous unit drawer between two adjacent unit drawers by arranging a water tank, a circulating water pump, a circulating water pipe, a heat exchanger and a cooling fan, and then discharges it into the lower unit drawer. A unit drawer solves the problem of excessively high temperature in the middle and upper parts of the traditional air-cooled switchgear cabinet due to heat convection.

3. The utility model releases the heat inside the heat exchange chamber to the outside as much as possible by arranging heat dissipation slits on the rear side of the cabinet, reducing the temperature of the circulating water returning to the water tank, thereby reducing the heat load of the heat dissipation fan, and further improving the cooling effect. cooling effect.

4. The utility model greatly increases the heat exchange area by arranging the heat exchanger, the circulating water pipe and the circulating water pump, which solves the problem of the heat exchange area when the water tank is used to absorb heat, and saves the water consumption. At the same time, the circulating water pipes are arranged in parallel. , to ensure that the temperature of the circulating water entering each heat exchanger is consistent, and that the temperature of each unit drawer is consistent.

5. The utility model separates the circulating water from the unit drawer by setting the power chamber and the heat exchange chamber, thereby eliminating the risk of leakage of the circulating water.

Description of drawings

Fig. 1 is the left side sectional view of the utility model;

FIG. 2 is a structural diagram of the heat exchange chamber and the power chamber of the utility model.

In the figure: 1. Cabinet body; 2. Unit drawer; 3. Power room; 4. Heat exchange room; 5. Heat exchanger; 6. Blower; 7. Water tank; 8. Circulating water pump; 9. Circulating water pipe; 10. Heat dissipation seam; 101, air outlet; 102, air inlet; 103, filter element; 601, air intake pipe; 701, cooling fan.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

1-2, the present utility model proposes a technical solution, a low-voltage withdrawable switch cabinet with good heat dissipation effect, comprising a cabinet body 1, a unit drawer 2 is arranged on the front of the cabinet body 1, and the bottom of the back of the cabinet body 1 is provided. A power chamber 3 is provided, a heat exchange chamber 4 is provided in the upper middle and upper part of the back of the cabinet, a heat exchanger 5 is provided inside the heat exchange chamber 4, a blower 6 is provided inside the power chamber 3, and the blower 6 is connected with an air intake pipe 601. The other end of 601 is communicated with the unit drawer 2, the power chamber 3 is provided with a water tank 7, the water tank 7 is connected with a circulating water pump 8, the circulating water pump 8 is connected with a circulating water pipe 9, and the circulating water pipe 9 enters the heat exchange chamber 4 and is connected with the pipe of the heat exchanger 5. The other end of the circulating water pipe 9 is communicated with the top of the water tank 7 , and the shell side of the heat exchanger 5 is communicated with the unit drawer 2 .

An air outlet 101 is provided on the rear side of the top of the cabinet 1, and the other end of the air outlet 101 is communicated with the unit drawer 2.

An air inlet 102 is provided on the rear side of the bottom of the cabinet 1 , the other end of the air inlet 102 is communicated with the blower 5 , and a filter element 103 is arranged in the air inlet 102 .

The rear side of the cabinet body 1 is provided with a heat dissipation seam 10 .

A cooling fan 701 is provided on the surface of the water tank 7 close to the rear side of the cabinet 1 .

When in use, the blower sends the air with lower outside temperature into the unit drawer, takes away the heat in the unit drawer, and finally discharges it from the air outlet on the rear side of the top of the cabinet. At the same time, the higher temperature air is discharged from the previous unit drawer after , enter the heat exchanger to exchange heat with the circulating water, cool the air and send it to the next unit drawer to prevent the upper and middle temperature of the unit drawer from being too high due to thermal convection. The heat exchanger flows out and returns to the water tank, and the cooling fan on the surface of the water tank cools the circulating water.

Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, Modifications, substitutions and alterations, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides a low pressure pull-out type cubical switchboard that radiating effect is good, includes the cabinet body (1), its characterized in that: the front of the cabinet body (1) is provided with a unit drawer (2), the bottom of the back of the cabinet body is provided with a power chamber (3), the middle upper part of the back of the cabinet body (1) is provided with a heat exchange chamber (4), a heat exchanger (5) is arranged in the heat exchange chamber (4), an air blower (6) is arranged in the power chamber (3), the air blower (6) is connected with an air inlet pipe (601), the other end of the air inlet pipe (601) is communicated with the unit drawer (2), the power chamber (3) is provided with a water tank (7), the water tank (7) is connected with a circulating water pump (8), the circulating water pump (8) is connected with a circulating water pipe (9), the circulating water pipe (9) enters the heat exchange chamber (4) and is communicated with the pipe pass of the heat exchanger (5), and the other end of the circulating water pipe (9) is communicated, and the shell pass of the heat exchanger (5) is communicated with the unit drawer (2).

2. The low-voltage draw-out type switch cabinet with good heat dissipation effect according to claim 1, characterized in that: the cabinet body (1) top rear side is provided with air outlet (101), air outlet (101) other end with unit drawer (2) intercommunication.

3. The low-voltage draw-out type switch cabinet with good heat dissipation effect according to claim 1, characterized in that: an air inlet (102) is formed in the rear side of the bottom of the cabinet body (1), the other end of the air inlet (102) is communicated with the air blower (6), and a filter element (103) is arranged in the air inlet (102).

4. The low-voltage draw-out type switch cabinet with good heat dissipation effect according to claim 1, characterized in that: the rear side of the cabinet body (1) is provided with a heat dissipation seam (10).

5. The low-voltage draw-out type switch cabinet with good heat dissipation effect according to claim 1, characterized in that: and a heat radiation fan (701) is arranged on the surface of the water tank (7) close to the rear side of the cabinet body (1).

6. The low-voltage draw-out type switch cabinet with good heat dissipation effect according to claim 1, characterized in that: the circulating water pipes (9) are arranged in parallel.

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