CN214754912U - Low-voltage comprehensive distribution box capable of reducing temperature rise - Google Patents

Abstract

The utility model discloses a low-voltage comprehensive distribution box capable of reducing temperature rise, which comprises a box-type shell, and a wire inlet chamber, a metering chamber, a feeder chamber and a reactive compensation chamber which are positioned in the box-type shell and separated into independent spaces by internal clapboards, wherein the metering chamber and the wire inlet chamber are positioned in the right front side in the box-type shell side by side, the feeder chamber is positioned in the right rear side in the box-type shell, and the reactive compensation chamber is positioned in the left side in the box-type shell; side case edge department, the bottom plate department and the inside baffle department of box shell all the equipartition have a plurality of louvre around box shell top, inside baffle is unsettled to be set up in box shell, and has interval L between the bottom plate of box shell. The utility model optimizes the structure and layout of the low-voltage comprehensive distribution box and adjusts the configuration of the main components, thereby reducing the temperature rise of the low-voltage comprehensive distribution box; meanwhile, the heat dissipation and ventilation structure of the product is optimally designed, the ventilation and heat dissipation holes are increased, and the safety and stability of equipment operation are improved.

Description

Low-voltage comprehensive distribution box capable of reducing temperature rise

Technical Field

The utility model relates to a block terminal especially relates to a block terminal is synthesized to low pressure that can reduce temperature rise.

Background

The distribution box is a low-voltage distribution device formed by assembling switch equipment, measuring instruments, protective electrical appliances and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to the electrical wiring requirement. In normal operation, the circuit can be switched on or off by means of a manual or automatic switch. When the fault or abnormal operation occurs, the circuit is cut off or an alarm is given by the aid of the protective electric appliance. The measuring instrument can display various parameters in operation, and can also adjust certain electrical parameters to prompt or send signals for deviation from a normal working state; it is commonly used in various power generation, distribution and transformation substations.

The existing distribution box has the following defects:

(1) the cross section area of the main bus is small or the width of the main bus is narrow, so that the overlapping area is affected, the current-carrying capacity of the main bus is reduced, and the temperature rise of the main bus is high.

(2) And the power consumption of part of components is large, the heating is obvious, the integral temperature rise of the low-voltage comprehensive distribution box is influenced, and the service life of the product is influenced.

(3) And the number of components is large, the arrangement is compact, the heat dissipation is influenced, and the integral temperature rise of the low-voltage comprehensive distribution box is high.

(4) The shell has fewer heat dissipation and ventilation holes, and the internal partition plate has no heat dissipation and ventilation design, so that the low-voltage comprehensive distribution box has poor heat dissipation efficiency and higher temperature rise.

Therefore, it is desired to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing a block terminal is synthesized to low pressure that can reduce the temperature rise that heat dispersion is good.

The technical scheme is as follows: in order to achieve the purpose, the utility model discloses a low-voltage comprehensive distribution box capable of reducing temperature rise, which comprises a box-type shell, and a wire inlet chamber, a metering chamber, a feeder chamber and a reactive compensation chamber which are positioned in the box-type shell and separated into independent spaces by an internal partition plate, wherein the metering chamber and the feeder chamber are positioned in the right front side in the box-type shell side by side, the feeder chamber is positioned in the right rear side in the box-type shell, and the reactive compensation chamber is positioned in the left side in the box-type shell; side case edge department, the bottom plate department and the inside baffle department of box shell all the equipartition have a plurality of louvre around box shell top, inside baffle is unsettled to be set up in box shell, and has the interval between the bottom plate of box shell.

And stainless steel wire meshes for covering the heat dissipation holes are arranged at the front side box edge and the rear side box edge at the top of the box-type shell and at the bottom plate of the box-type shell.

Preferably, the heat dissipation holes are U-shaped slots.

Furthermore, a pair of channel steel for supporting is arranged at the bottom of the box-type shell.

Furthermore, the inlet wire room includes fuse formula isolator, measurement mutual-inductor and inlet wire copper bar.

Furthermore, the size of the incoming line copper bar is 8 multiplied by 40 mm-6 multiplied by 60 mm.

Preferably, the feeder room comprises a residual current operated circuit breaker and a main bus copper bar.

Furthermore, the size of the main bus copper bar is 6 multiplied by 40 mm-5 multiplied by 50 mm.

Moreover, the inlet wire chamber is connected with the feeder line chamber through a main bus copper bar, and the metering chamber is connected with the reactive compensation chamber through an insulated wire.

Furthermore, the reactive compensation chamber comprises an intelligent capacitor bank, a molded case circuit breaker, an integrated surge protector and a lightning arrester.

Has the advantages that: compared with the prior art, the utility model has the advantages of it is following:

(1) the utility model optimizes the structure and layout of the low-voltage comprehensive distribution box and adjusts the configuration of the main components, thereby reducing the temperature rise of the low-voltage comprehensive distribution box; meanwhile, the heat dissipation and ventilation structure of the product is optimally designed, the ventilation and heat dissipation holes are increased, and the safety and stability of equipment operation are improved;

(2) the utility model changes the fuse core of the fuse type isolating switch into the low-power-consumption fuse core, thereby reducing the self-heating of the product; the combination of the surge protector and the fuse is replaced into an integrated surge protector, and the combination of the load switch, the capacitor and the reactive compensation controller is replaced into an intelligent capacitor bank, so that the number of components is reduced, the heat dissipation gap of the components is increased, and the heat dissipation efficiency is improved;

(3) the sectional area of a main bus of the original low-voltage comprehensive distribution box is increased, simultaneously, bus lap joints are effectively reduced, the probability of overheating caused by small contact area or poor contact is reduced, and the equipment is more stable to operate;

(4) the utility model discloses move integral type surge protector to the reactive compensation room by the feeder room, enlarge feeder room space, make the increase of interval between the residual current operated circuit breaker, increase the electric clearance between the copper bar, improve ventilation cooling efficiency, guarantee that the power supply is reliable.

Drawings

FIG. 1 is a structural layout diagram of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a left side view of the present invention;

fig. 4 is a right side view of the present invention;

fig. 5 is a first internal layout diagram of the present invention;

fig. 6 is a first internal layout diagram of the present invention;

fig. 7 is a first internal layout diagram of the present invention.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the utility model relates to a distribution box is synthesized to low pressure that can reduce temperature rise, including box shell 1, inside baffle 2, inlet wire room 3, measurement room 4, feeder room 5 and reactive power compensation room 6.

The box-type shell 1 is formed by splicing and welding 2mm stainless steel plates, and the wire inlet chamber 3, the metering chamber 4, the feeder line chamber 5 and the reactive compensation chamber 6 are positioned in the box-type shell 1 and are separately separated by adopting the internal partition plate 2. The metering chamber 4 and the wire inlet chamber 3 are positioned in the right front side in the box-type shell side by side, the feeder line chamber 5 is positioned in the right rear side in the box-type shell, and the reactive compensation chamber 6 is positioned in the left side in the box-type shell. Inside baffle 2 is the steel sheet that heat conductivility is good, has seted up the louvre of equipartition on this steel sheet, and inside baffle 2 is unsettled to be set up in box shell 1, and has interval L between the bottom plate of box shell, guarantees that each compartment has good ventilation, makes shell ventilation cooling efficiency improve. The side plate of the box-type shell 1 is provided with a plurality of shutters 9 distributed in an upper layer and a lower layer, and the left side and the right side are respectively provided with 4 shutters 9. The shutter is an aluminum alloy shutter with a protection plate, and smooth internal and external ventilation is guaranteed. The box edge and the box 1 of side all equipartition have a plurality of louvre 7 and cover the stainless steel net of louvre 7 around box 1 top, louvre 7 is the U type slotted hole. The bottom of the box-type casing 1 is provided with a pair of channel steels 8 for supporting.

As shown in fig. 5, 6 and 7, the service room 3 includes a fused disconnector 301, a metering transformer 302, a measuring transformer 303 and a copper inlet line bank 304. The size of the incoming copper bar 304 is 8 multiplied by 40 mm-6 multiplied by 60 mm. The feeder house 5 comprises a residual current operated circuit breaker 501 and a main bus copper bar 502. The size of the main bus copper bar 502 is 6 multiplied by 40 mm-5 multiplied by 50 mm; the utility model discloses increased the copper bar sectional area with copper bar and the overlap area between the components and parts, effectively reduced the copper bar and generated heat. The inlet wire chamber 3 is connected with the feeder line chamber 5 through a main bus copper bar 502, and the metering chamber 4 is connected with the reactive compensation chamber 6 through an insulated wire. The reactive compensation chamber 6 comprises a smart capacitor bank 601, a molded case circuit breaker 602, an integrated surge protector 603 and a lightning arrester 604. The utility model changes the fuse core of the fuse type isolating switch into the low power consumption fuse core, thereby reducing the self heating of the product; the combination of the surge protector and the fuse is replaced into an integrated surge protector, and the combination of the load switch, the capacitor and the reactive compensation controller is replaced into an intelligent capacitor bank, so that the number of components is reduced, the heat dissipation gap of the components is increased, and the heat dissipation efficiency is improved; meanwhile, the number of connecting points is effectively reduced, the probability of overheating caused by small contact area or poor contact is reduced, and the equipment is more stable to operate; the utility model moves the integrated surge protector from the feeder chamber to the reactive compensation chamber, enlarges the space of the feeder chamber, increases the space between the residual current operated circuit breakers, increases the electric clearance between copper bars, improves the ventilation and heat dissipation efficiency, and ensures reliable power supply; the overall temperature rise of the low-voltage comprehensive distribution box is reduced by 5-10K.

Claims (10)

1. The utility model provides a block terminal is synthesized to low pressure that can reduce temperature rise which characterized in that: the device comprises a box-type shell (1), and a wire inlet chamber (3), a metering chamber (4), a feeder line chamber (5) and a reactive compensation chamber (6) which are positioned in the box-type shell and separated into independent spaces by an internal partition plate (2), wherein the metering chamber (4) and the wire inlet chamber (3) are positioned in the right front side in the box-type shell side by side, the feeder line chamber (5) is positioned in the right rear side in the box-type shell, and the reactive compensation chamber (6) is positioned in the left side in the box-type shell; side case is along department, the bottom plate department and the inside baffle (2) department of box shell (1) all the equipartition have a plurality of louvre (7) around box shell (1) top, inside baffle (2) unsettled set up in box shell (1), and there is interval L between the bottom plate of box shell.

2. The low-voltage comprehensive distribution box capable of reducing temperature rise according to claim 1, characterized in that: stainless steel wire meshes for covering the heat dissipation holes (7) are arranged at the front side box edge and the rear side box edge at the top of the box-type shell (1) and at the bottom plate of the box-type shell.

3. The low-voltage comprehensive distribution box capable of reducing temperature rise according to claim 1, characterized in that: the heat dissipation holes (7) are U-shaped slotted holes.

4. The low-voltage comprehensive distribution box capable of reducing temperature rise according to claim 1, characterized in that: the bottom of the box-type shell (1) is provided with a pair of channel steel (8) for supporting.

5. The low-voltage comprehensive distribution box capable of reducing temperature rise according to claim 1, characterized in that: the incoming line room (3) comprises a fuse type isolating switch (301), a metering transformer (302), a measuring transformer (303) and an incoming line copper bar (304).

6. The low-voltage comprehensive distribution box capable of reducing temperature rise according to claim 5, characterized in that: the size of the incoming copper bar (304) is 8 multiplied by 40 mm-6 multiplied by 60 mm.

7. The low-voltage comprehensive distribution box capable of reducing temperature rise according to claim 1, characterized in that: the feeder line chamber (5) comprises a residual current operated circuit breaker (501) and a main bus copper bar (502).

8. The low-voltage comprehensive distribution box capable of reducing temperature rise according to claim 7, is characterized in that: the size of the main bus copper bar (502) is 6 multiplied by 40 mm-5 multiplied by 50 mm.

9. The low-voltage comprehensive distribution box capable of reducing temperature rise according to claim 8, is characterized in that: the inlet wire chamber (3) is connected with the feeder line chamber (5) through a main bus copper bar (502), and the metering chamber (4) is connected with the reactive compensation chamber (6) through an insulated wire.

10. The low-voltage comprehensive distribution box capable of reducing temperature rise according to claim 1, characterized in that: the reactive compensation chamber (6) comprises an intelligent capacitor bank (601), a molded case circuit breaker (602), an integrated surge protector (603) and an arrester (604).

Images