CN211879899U - Rain-proof electric distribution box - Google Patents

Abstract

The utility model relates to a rainproof electrical distribution box. Since the outer through hole and the inner through hole are respectively arranged at different height positions on both sides of the outer casing and the inner casing, the outer through hole and the inner through hole can be ventilated through the connection of the flow cavity. It can circulate the air between the inside of the box and the outside, which helps to dissipate heat. At the same time, setting rain eyebrows outside the outer through holes can reduce the probability of water entering the outer through holes, and has the function of initial waterproofing. When water enters the outer through holes, the water body will It is blocked in the flow cavity, and flows to the bottom of the flow cavity under the action of gravity, and is discharged from the drainage port at the bottom of the outer shell to achieve the effect of secondary waterproofing. Moreover, by installing the exhaust fan in the middle position directly under the rain cover, the utility model can effectively prevent the external water body from entering the exhaust fan and cause water damage to the exhaust fan motor, improve the service life of the exhaust fan, and at the same time prevent the external water body from entering through the exhaust fan channel. The inside of the box will cause damage to the electrical equipment to ensure the normal and stable operation of the electrical equipment.

Description

A rainproof electrical distribution box

technical field

The utility model relates to the technical field of electrical equipment, in particular to a rain-proof electrical distribution box.

Background technique

The distribution box is a low-voltage distribution box that assembles switchgear, measuring instruments, protective appliances and auxiliary equipment in a closed or semi-enclosed metal cabinet or screen according to the electrical wiring requirements to form a low-voltage distribution box. Make or break the circuit, cut off the circuit or give an alarm with the help of the protective device in case of fault or abnormal operation, and display various parameters in operation with the help of measuring instruments, and can also adjust some electrical parameters to prompt or issue a deviation from the normal working state. Signal.

However, the existing distribution boxes have the following disadvantages:

1. Most of the existing power distribution boxes have a single-layer structure, and there are many heat dissipation and ventilation structures on their sides. However, when the existing heat dissipation and ventilation structures are equipped with heat dissipation and ventilation, it is easy for water to enter, so that the overall distribution box is The waterproof effect is greatly reduced, which is easy to cause a short circuit of the internal electrical equipment, and it is easy to cause an electric shock accident during maintenance.

2. In order to improve the heat dissipation efficiency of the existing power distribution box, a cooling fan is often added to the box to conduct automatic induction heat dissipation through the temperature sensing element and the controller. However, after the existing cooling fan is installed, it is often unable to effectively resist the external water body. The fan motor is easily damaged due to water ingress.

Utility model content

In view of the deficiencies of the prior art, the utility model provides a rain-proof electrical distribution box. Since the box body includes an outer casing and an inner casing, a flow cavity is arranged between the outer casing and the inner casing, and the Both sides of the inner shell are provided with inner through holes, both sides of the outer shell are provided with outer through holes, and the side surfaces of both sides of the outer shell are provided with rain eyebrows outside the outer through holes. A water outlet is opened in the middle of the bottom, a temperature sensor is installed on the inner wall of the box, an exhaust duct is installed in the middle of the top of the box, an exhaust fan is installed inside the exhaust duct, and the exhaust duct is installed. The two ends of the casing run through the inner and outer ends of the box body, and a temperature controller is installed on the upper end surface of the box body on one side of the exhaust duct, and the temperature controller is electrically connected with the temperature sensor and the exhaust fan, which solves the problem of existing The technology cannot take into account heat dissipation and waterproofing at the same time, and the service life is short.

The technical scheme adopted by the utility model to solve the technical problem: a rainproof electrical distribution box, comprising a box body, a box door and a rain cover, characterized in that a base is installed at the four corners of the bottom of the box body, and the box A box door is hinged on one side of the front end of the box, a rain cover is installed on the top of the box, a plurality of equipment installation beams are welded inside the box, and the box includes an outer shell and an inner shell, A flow cavity is arranged between the outer casing and the inner casing, inner through holes are opened on both sides of the inner casing, outer through holes are opened on both sides of the outer casing, and both sides of the outer casing are opened with inner through holes. The outer through hole is provided with rain brows on the side surface, the bottom middle position of the outer casing is provided with a drain outlet, the inner wall of the box body is installed with a temperature sensor, and the top middle position of the box body is installed with an exhaust air The inside of the exhaust duct is equipped with an exhaust fan, the two ends of the exhaust duct run through the inner and outer ends of the box body, and the upper end surface of the box body is installed with a temperature controller on one side of the exhaust duct, so The temperature controller is electrically connected with the temperature sensor and the exhaust fan respectively.

Preferably, a tempered glass window is installed on the upper part of the box door.

Preferably, the upper part of the rear end surface of the box body is provided with a wire inlet hole.

Preferably, a dust filter is installed on the outer through hole.

Preferably, a rubber pad is bonded to the bottom end of the base.

Preferably, the upper end of the exhaust duct is at least 30mm higher than the top surface of the box.

The beneficial effects of the utility model are as follows: the rainproof electrical distribution box provided by the utility model has the following beneficial effects:

(1) The utility model is provided with an outer casing, an inner casing, a flow cavity, an inner through hole and an outer through hole. When in use, the outer through hole and the inner through hole are respectively arranged on different sides of the outer casing and the inner casing. At the height position, through the connection of the flow cavity, the outer through hole and the inner through hole can be ventilated, which can make the inside of the box and the outside air circulate, which is helpful for heat dissipation. It has the function of initial waterproofing. When water enters the outer through hole, the water will be blocked in the flow cavity, and will flow to the bottom of the flow cavity under the action of gravity, and will be discharged from the drainage port at the bottom of the outer shell. To achieve the effect of secondary waterproofing.

(2) The utility model can effectively prevent the external water body from entering the exhaust fan and cause water inflow damage to the exhaust fan motor, improve the service life of the exhaust fan, and simultaneously prevent the external water body from passing through the exhaust fan channel by installing the exhaust fan in the middle position of the rain cover. Entering the inside of the box will cause damage to the electrical equipment and ensure the normal and stable operation of the electrical equipment.

Description of drawings

1 to 3 are schematic structural diagrams of the first embodiment of the present invention. Among them, FIG. 1 is a front view of the utility model; FIG. 2 is a schematic structural diagram of a box body of the utility model; and FIG. 3 is a rear view of the utility model.

In the picture:

1. Box body;

2, the base;

3. Box door;

4. Rain cover;

5. Equipment installation beam;

6. Outer shell;

7. Inner shell;

8. Flow cavity;

9. Inner through hole;

10. Outer through hole;

11. Rain eyebrows;

12. Drainage outlet;

13. Temperature sensor;

14. Exhaust fan;

15. Temperature controller;

16. Dust filter;

17. Rubber pad;

18. Tempered glass windows;

19. Cable entry hole;

20. Exhaust duct.

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.

As shown in Figures 1-3, the present utility model provides a technical solution: a power distribution box for electrical equipment, comprising a box body 1, a box door 3 and a rain cover 4, and a base is installed at the four corners of the bottom of the box body 1 2. A box door 3 is hinged on the front side of the box body 1, a rain cover 4 is installed on the top of the box body 1, and a plurality of equipment installation beams 5 are welded inside the box body 1. The box body 1 includes an outer shell 6 and the inner casing 7, a flow cavity 8 is arranged between the outer casing 6 and the inner casing 7, inner through holes 9 are opened on both sides of the inner casing 7, and outer through holes 10 are opened on both sides of the outer casing 6, On both sides of the outer casing 6, a rain shield 11 is provided outside the outer through hole 10, a drain port 12 is opened in the middle of the bottom of the outer casing 6, and a temperature sensor 13 is installed on the inner wall of the box body 1. An exhaust duct 20 is installed in the middle of the top. An exhaust fan 14 is installed inside the exhaust duct 20. Both ends of the exhaust duct 20 run through the inner and outer ends of the box 1. A temperature controller 15 is installed on the side, and the temperature controller 15 is electrically connected to the temperature sensor 13 and the exhaust fan 14 respectively. The upper part of the box door 3 is equipped with a tempered glass window 18, and the upper part of the rear end surface of the box body 1 is provided with a wire inlet hole 19. The wire inlet hole 19 is used for connecting wires of electrical equipment, and the position of the wire inlet hole 19 is blocked by the rain cover 4 to avoid the entry of rainwater. A dust filter 16 is installed on the outer through hole 10, and the dust filter 16 can block External dust enters the outer through hole 10 to improve the dustproof effect of the box 1. The bottom end of the base 2 is bonded with a rubber pad 17. The rubber pad 17 has strong wear resistance and has a large friction force with the ground. , which can effectively improve the stability of the box body 1 and prevent the base 2 from being greatly worn. The upper end of the exhaust duct 20 is at least 30mm higher than the top surface of the box body 1, which can prevent the top of the box body 1 from being directly poured back when water is stored. into the exhaust duct 20.

Working principle: When in use, when the temperature sensor 13 detects that the temperature value in the box 1 reaches the preset threshold, the temperature controller 15 controls the exhaust fan 14 in the exhaust duct 20 to open, and the high temperature gas inside the box 1 passes through the exhaust duct. 20 is discharged to the outside, while the external low-temperature gas enters through the outer through hole 10 on the outer casing 6, and then enters the inner through hole 9 through the flow cavity 8, and then enters the interior of the box 1. Driven by the exhaust fan 14, the electrical equipment is discharged. The generated high temperature is taken away to achieve the effect of rapid heat dissipation. The rain brows 11 are arranged outside the outer through hole 10 to block the external water body. When the outer through hole 10 accidentally enters the water, the water body will be blocked in the flow cavity. 8, and flows to the bottom of the flow cavity 8 under the action of gravity, and is discharged from the drain port 12 at the bottom of the outer shell 6 to achieve the effect of waterproofing.

To sum up, the utility model can shield the box 1 and the exhaust fan 14 from rain by setting the rain cover 4 and the rain cover 4 to prevent the exhaust fan 14 from being damaged by water ingress, improve the service life of the exhaust fan 14, and solve the problem of existing problems. To solve the problem of short technical service life, by arranging the outer casing 6, the inner casing 7, the inner through hole 9 and the outer through hole 10, the inner through hole 9 and the outer through hole 10 are respectively set in different parts of the inner casing 7 and the outer casing 6. At the height position, it can achieve the effect of heat dissipation and waterproof at the same time, which solves the problem that the existing technology cannot take heat dissipation and waterproofing into consideration at the same time.

Claims (6)

1. A rain-proof electrical distribution box, comprising a box body, a box door and a rain cover, is characterized in that a base is installed at the four corners of the bottom of the box body, and a front end side of the box body is hinged with a fan. The box door, the top of the box body is installed with a rain cover, the inside of the box body is welded with a plurality of equipment installation beams, the box body includes an outer shell and an inner shell, and the outer shell and the inner shell are between the outer shell and the inner shell. A flow cavity is arranged between the two sides of the inner casing, inner through holes are opened on both sides of the inner casing, outer through holes are opened on both sides of the outer casing, and two sides of the outer casing are provided outside the outer through holes. Rain brows, a drain port is opened at the bottom middle of the outer casing, a temperature sensor is installed on the inner wall of the box, an exhaust duct is installed at the top middle of the box, and the inside of the exhaust duct is An exhaust fan is installed, both ends of the exhaust duct run through the inner and outer ends of the box body, and a temperature controller is installed on the upper end surface of the box body on one side of the exhaust duct, and the temperature controller is respectively connected with the temperature sensor and the temperature controller. The exhaust fan is electrically connected. 2 . The rainproof electrical distribution box according to claim 1 , wherein a tempered glass window is installed on the upper part of the box door. 3 . 3 . The rainproof electrical distribution box according to claim 1 , wherein a wire inlet hole is provided on the upper part of the rear end surface of the box body. 4 . 4 . The rainproof electrical distribution box according to claim 1 , wherein a dust filter is installed on the outer through hole. 5 . 5 . The rainproof electrical distribution box according to claim 1 , wherein a rubber pad is adhered to the bottom end of the base. 6 . 6 . The rainproof electrical distribution box according to claim 1 , wherein the upper end of the exhaust duct is at least 30 mm higher than the top surface of the box. 7 .

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