CN104201580B - A kind of novel multiple protection type Outdoor Terminal Case - Google Patents

Abstract

The invention discloses a novel multi-protection type outdoor terminal box, which comprises a box body with box doors at the front and rear, a top mounting plate and a bottom mounting plate horizontally arranged in the box body, which are divided into an upper ventilation chamber, a middle The storage chamber, the lower moisture isolation chamber, the door frame of the cabinet is surrounded by moisture-proof rubber rings, the top mounting plate and the bottom mounting plate are provided with multiple rows of mounting holes; A ventilator; two pillars arranged in parallel are arranged in the storage chamber, the top and bottom ends of the pillars are correspondingly connected to the mounting holes by bolts, the front end of the pillars is connected to the insulating board through the bracket, and the insulating board is provided with terminal blocks. The end face is connected to the slot plate, and the slot plate is equipped with low-voltage busbar and air switch. Low-power heater; there are cooling holes on the left and right walls of the box surrounding the moisture isolation chamber.

Description

A new type of multi-protection outdoor terminal box

technical field

The invention relates to the technical field of outdoor terminal boxes, in particular to a novel multi-protection outdoor terminal box.

Background technique

At present, during the heating process of the heating and dehumidification system of the traditional terminal box, the surface temperature of the heater rises sharply, and the surrounding devices are greatly affected by the high temperature, and there is a potential risk of burning out. Due to the influence of the external temperature and the poor airtightness of the box, the power configuration of the heater is not easy to calculate from the time when the heater starts electric heating to the time when the overall air temperature inside the box reaches the required temperature; if the power is too small, the heating The fluid formed by the water vapor near the device will circulate in the relatively sealed box under the action of heat, which will accelerate the damp and rust of the terminal block and the aging of the cable sheath, and reduce the insulation performance. In addition, for some terminal boxes without ventilation holes, simple electric heating can discharge part of the water vapor, but at the same time the heated water vapor rises and condenses into water droplets on the inner wall of the top of the terminal box. To the running terminal block, it will cause a short circuit or grounding of the secondary circuit, and even cause a malfunction of the circuit breaker, which is extremely harmful.

Contents of the invention

The purpose of this invention is to provide a new type of multi-protection outdoor terminal box, which can heat and dehumidify the inside of the box, effectively prevent the terminal box from rusting and aging due to the influence of moisture, and ensure the normal operation of the equipment. At the same time, it can Move and transpose the internal terminal blocks and other devices to make reasonable use of the internal space of the terminal box.

The technical scheme adopted in the present invention is:

A new type of multi-protection outdoor terminal box, including a box body with front and rear doors, a top mounting plate and a bottom mounting plate installed horizontally in the box, and the top mounting plate and the bottom mounting plate divide the box body into upper and lower. There are three middle and lower chambers, the upper chamber is a ventilation chamber, the middle chamber is a storage chamber, and the lower chamber is a moisture isolation chamber. There are moisture-proof rubber rings around the door frame of the cabinet, and the top and bottom mounting plates There are multiple rows of mounting holes; a ventilator is provided on the left and right walls of the box surrounding the ventilation cavity; two parallel columns are arranged in the storage cavity, and the top and bottom ends of the columns are connected by bolts correspondingly. The mounting holes of the plate and the bottom mounting plate, the front end of the pillar is connected to the insulating plate through the bracket, the terminal block is arranged on the insulating plate, the rear end of the pillar is connected to the slot plate, and the low voltage busbar and air switch are arranged on the slot plate, and the low voltage busbar There is a transparent organic insulation board on the upper cover, a digital dehumidifier on the slot board, and at least two low-power heaters on the bottom installation board; heat dissipation devices are installed on the left and right walls of the box surrounding the moisture isolation chamber. hole.

The pillar is surrounded by three upright support plates to form a U-shaped structure, the front support plate and the rear end support plate are provided with screw holes on the board surface and the upper and lower end surfaces, and the front support plates of the two pillars are respectively connected to a bracket , the rear support plates of the two pillars are jointly connected with a slot plate.

Ventilation holes are arranged on the front and rear walls of the box surrounding the ventilation cavity.

The top of the box body is provided with a ridge-shaped rainproof cover.

The present invention divides the box body into three chambers through the top mounting plate and the bottom mounting plate, and uses the micro-ventilators and ventilation holes provided around the ventilation cavity to perform real-time ventilation to ensure that the internal components of the box body are dry; Some two pillars are movably connected with the top mounting plate and the bottom mounting plate, which is convenient for disassembly and installation, and makes reasonable use of the space of the box body; and then uses the digital dehumidifier to condense the hot and humid air in the terminal box into water droplets, which is formed by The water guide pipe is discharged to the outside of the box to effectively reduce the humidity in the cabinet; and cooperate with the low-power heater to dehumidify the box more thoroughly; effectively prevent the terminal box from rusting and aging due to the influence of moisture, and ensure the normal operation of the equipment .

Description of drawings

Fig. 1 is the front view of the present invention;

Fig. 2 is the right view of the present invention;

Fig. 3 is a sectional view of plane A-A of the present invention.

detailed description

As shown in Figures 1, 2 and 3, the present invention comprises a cube-shaped casing 1, the top of the casing 1 is provided with a roof-shaped rainproof cover 17, and the front and rear of the casing 1 are all provided with doors, which are respectively the front door 2 , rear box door 3, there are moisture-proof rubber rings 4 and 5 around the door frame of the box body 1, when the box door is closed, the inner edge of the box door is pressed tightly on the moisture-proof rubber ring to play a role of sealing and moisture insulation Purpose: The top mounting plate 7 and the bottom mounting plate 8 are horizontally arranged in the box body 1, and the top mounting plate 7 and the bottom mounting plate 8 divide the box body 1 into upper, middle and lower chambers, and the upper chamber is a ventilation chamber 18. The middle chamber is a storage chamber 19, and the lower chamber is a moisture isolation chamber 20. There are multiple rows of mounting holes on the top mounting plate 7 and the bottom mounting plate 8; A miniature ventilator 6 is respectively provided; two pillars 91, 92 arranged in parallel are arranged in the storage chamber 19, and the pillars are surrounded by three erected support plates to form a U-shaped structure, and the front support plates 91-1, 92-1 and Screw holes are provided on the board surface and the upper and lower end surfaces of the rear end support plates 91-2, 92-2, and the top and bottom ends of the pillars are correspondingly connected to the top mounting plate 7 and the bottom mounting plate 8 by bolts, and the two pillars 91, The front support plates 91-1, 92-1 of 92 are respectively connected to a support 10, and the support 10 is connected to an insulating plate 11, and the insulating plate 11 is provided with a terminal block 12; the rear support plates 91-2, 92-2 is jointly connected with a slot plate 24, which is provided with a low-voltage busbar 13 and an air switch 25, and a transparent organic insulating plate 14 is arranged on the low-voltage busbar 13, and a digital dehumidifier is also provided on the slot plate 24 21, the bottom mounting plate 8 is provided with at least two low-power heaters 15; the box body 1 surrounding the moisture isolation chamber 20 is provided with cooling holes 16 on the left and right box walls, and the front and rear boxes of the box body 1 surrounding the ventilation chamber 18 Ventilation holes 23 are provided on the wall.

The cube-shaped box 1 of the present invention is divided into three chambers by the top mounting plate 7 and the bottom mounting plate 8, which are respectively a ventilation cavity 18, a storage cavity 19, and a moisture isolation cavity 20, and a micro ventilator is arranged around the ventilation cavity 18 6 and ventilation holes 23, the micro-ventilator 6 adopts a special-purpose ventilator, which can be bought on the market. On the one hand, it can be ventilated in wet and cloudy weather, and can form an air convection channel to ensure that the internal components of the box body 1 are dry. At the same time, It can also prevent small animals from entering and destroying the circuit in the box body 1; the ventilation hole 23 is designed on the top of the box body 1, and is mainly used for general weather. Save electricity. The ridge-shaped rainproof cover 17 can better allow rainwater to flow down smoothly without water accumulation. The moisture-proof rubber ring mainly plays the purpose of sealing and moisture insulation, because the existing box doors generally cannot achieve the sealing effect, and the present invention can prevent external moisture from entering from the box door. The top mounting plate 7 can be installed in the box body 1 at a distance of 1/5 from the top surface of the box body 1 to reserve a certain space for ventilation. The bottom mounting plate 8 is installed in the box body 1 at a distance of 1/5 from the bottom end surface of the box body 1. At a distance of 5, a certain space is reserved for the moisture isolation cavity 20, so that the moisture in the lower cable channel first passes through the moisture isolation cavity 20 to diverge, preventing the moisture from rising into the terminal box, and minimizing the impact of moisture on the intermediate storage cavity. 19 Effects on equipment. Both the top mounting plate 7 and the bottom mounting plate 8 are provided with multiple rows of mounting holes, and the mounting holes are used to install the pillars. With such a design, the pillars can be moved or the spatial position can be changed through manual disassembly. In the actual application process, there are Sometimes the space occupied by the terminal row 12 needs to be larger, and sometimes the space required by the low-voltage busbar 13 is larger, and the existing terminal boxes are all fixed spaces, so the installation structure of the present invention can be converted at will. The space of the cabinet 1 is utilized more reasonably. The insulating terminal block 12 is set on the insulating plate 11, the low-voltage bus bar 13 and the air switch 25 are set on the slot plate 24, and the terminal block 12 and the air switch 25 are isolated, so the terminal block 12 is fixedly installed on the insulating plate 11 , On the side where the air switch 25 is installed, a transparent organic insulating plate 1411 is used to isolate the live parts of the upper port of the air switch 25, so as to better protect the terminal block 12 from external influences. The terminal box is equipped with a new type of digital dehumidifier 21, which adopts advanced semiconductor refrigeration. Through the principle of condensation, the hot and humid air in the terminal box is condensed into water droplets, which are discharged to the outside of the box by the water guide pipe, which can effectively reduce the humidity in the cabinet. . According to the size of the box body 1 of the terminal box, 2-4 low-power heaters 15 (about 45W) can be installed, which are directly powered by the power supply for heating. The wire is burnt and shorted.

Claims (4)

1. A new type of multi-protection outdoor terminal box, which is characterized in that: it includes a box body with front and rear doors, and a top mounting plate and a bottom mounting plate are installed horizontally in the box, and the top mounting plate and the bottom mounting plate will The cabinet is divided into upper, middle and lower chambers. The upper chamber is a ventilation chamber, the middle chamber is a storage chamber, and the lower chamber is a moisture isolation chamber. There are moisture-proof rubber rings around the door frame of the cabinet. There are multiple rows of mounting holes on the mounting plate and the bottom mounting plate; a ventilator is provided on the left and right walls of the box surrounding the ventilation cavity; two parallel columns are arranged in the storage cavity, and the top and bottom of the columns are Correspondingly connect the mounting holes of the top mounting plate and the bottom mounting plate through bolts, the front end of the pillar is connected to the insulating plate through the bracket, the insulating plate is provided with a terminal block, the rear end of the pillar is connected to the slot plate, and the slot plate is provided with a low-voltage busbar and Air switch, a transparent organic insulation board is installed on the upper cover of the low-voltage busbar, a digital dehumidifier is also installed on the groove board, and at least two low-power heaters are installed on the bottom installation board; There are cooling holes on the box wall. 2. The new multi-protection outdoor terminal box according to claim 1, characterized in that: the pillar is surrounded by three upright support plates to form a U-shaped structure, the front support plate and the rear end support plate The upper and lower end surfaces are provided with screw holes, the front support plates of the two pillars are respectively connected with a bracket, and the rear end support plates of the two pillars are jointly connected with a slot plate. 3. The novel multi-protection outdoor terminal box according to claim 2, characterized in that: the front and rear walls of the box surrounding the ventilation cavity are provided with ventilation holes. 4. The novel multi-protection outdoor terminal box according to claim 3, characterized in that: the top of the box is provided with a ridge-shaped rainproof cover.