CN220754163U - Block terminal that thermal-insulated nature is good cooling efficiency is high - Google Patents

Abstract

The utility model relates to the technical field of distribution boxes, specifically a distribution box with good heat insulation and high cooling efficiency, including a distribution box body, a cavity is opened between the inner wall and the outer wall of the side of the distribution box body, the inner outer wall of the distribution box body is provided with a plurality of first heat dissipation fins arranged in a matrix, one side of the distribution box body is provided with a fan and an air duct for conveying the gas in the cavity to the processing box, a connecting pipe is provided between the processing box and the distribution box body, and a semiconductor refrigeration sheet for cooling the inside of the processing box is provided in the processing box. The utility model conveys the gas inside the cavity to the processing box through the coordinated use of the fan and the air duct, and then cools the processing box through the semiconductor refrigeration sheet and contacts with the gas entering the processing box to achieve cooling of the gas, and the cooled gas is re-conveyed to the cavity to achieve air circulation and improve the cooling efficiency of the distribution box body.

Description

A distribution box with good thermal insulation and high cooling efficiency

Technical Field

The utility model relates to the technical field of distribution boxes, in particular to a distribution box with good heat insulation and high cooling efficiency.

Background technique

A distribution box is a device used to distribute electric energy, control circuits and protect electrical equipment. For example, a distribution box with good heat insulation and high cooling efficiency, published as CN216720654U, includes an outer cabinet, an inner cabinet and heat sink fins, a heat exchange copper plate, an exhaust vent and an exhaust fan. The inner cabinet is welded to one end of the outer cabinet, the heat sink fins are welded to the back of the inner cabinet, a heat exchange copper plate is bolted to one side of the heat sink fin, a semiconductor refrigeration plate is provided on one side of the heat exchange copper plate, and a glass fiber mat is glued to the inner wall of the outer cabinet.

Although the utility model has good thermal insulation and high cooling efficiency, it can greatly ensure the stability of the use of the distribution box. When reducing the conduction of external heat into the cabinet in high temperature weather, it can ensure the discharge of heat in the cabinet to the outside, and has high practicality. However, in the specific use process, the exhaust fan is used to blow air between the outer cabinet and the heat exchange copper plate, so that the outside air will quickly enter the outer cabinet through the exhaust fan, and the air inside the outer cabinet will be blown out to the outside through the exhaust port, so as to take away the heat on the surface of the heating end of the semiconductor refrigeration plate and realize heat dissipation. Therefore, the heat dissipation effect is affected by the external environment temperature and wind speed. The higher the temperature of the external environment, the higher the temperature inside the distribution box, and the worse the heat dissipation effect. The greater the wind speed of the external environment, the better the heat dissipation effect of the distribution box. Therefore, it is impossible to achieve the ideal cooling effect in extreme weather. In view of this, we propose a distribution box with good thermal insulation and high cooling efficiency.

Utility Model Content

In order to make up for the above deficiencies, the utility model provides a distribution box with good thermal insulation and high cooling efficiency.

The technical solution of the utility model is:

A distribution box with good thermal insulation and high cooling efficiency comprises a distribution box body, a cavity is opened between the inner wall and the outer wall of the side of the distribution box body, the inner outer wall of the distribution box body is provided with a plurality of first heat dissipation fins arranged in a matrix, a fan and an air duct for conveying the gas in the cavity to a processing box are provided on one side of the distribution box body, a connecting pipe is provided between the processing box and the distribution box body, and a semiconductor refrigeration sheet is provided in the processing box for cooling the interior thereof.

As a preferred technical solution, one end of the first heat dissipation fin away from the inner outer wall of the distribution box body passes through the outer inner wall of the distribution box body and extends to the outside, and a heat dissipation aluminum plate is embedded in the inner layer of the distribution box body corresponding to the first heat dissipation fin.

As a preferred technical solution, the heat dissipation aluminum plates are embedded in multiple and equally spaced arrangements, the number of the heat dissipation aluminum plates is consistent with the number of rows of the first heat dissipation fins and corresponds one to one, and thermal grease is coated between the heat dissipation aluminum plates and the first heat dissipation fins.

As a preferred technical solution, the distribution box body is provided with a temperature sensor for detecting the internal temperature thereof, and the outer wall of the processing box is provided with a controller for controlling the on/off of the fan.

As a preferred technical solution, the heat dissipation surface of the semiconductor refrigeration plate is provided with a plurality of second heat dissipation fins arranged in a matrix, and the second heat dissipation fins extend to the outside of the processing box from a side away from the semiconductor refrigeration plate.

As a preferred technical solution, a fan for accelerating the flow rate of gas inside the processing box is provided on the top of the processing box, and the fan is detachably connected to the processing box by bolts.

As a preferred technical solution, a hollow plate with a hollow structure is further provided in the processing box, and the center of the hollow plate is filled with desiccant particles.

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

1. The utility model uses a fan and an air duct to transport the gas inside the cavity to the processing box, and then uses a semiconductor refrigeration sheet to cool the processing box and contact the gas entering the processing box to achieve cooling of the gas. The cooled gas is re-transported to the cavity to achieve air circulation and improve the cooling efficiency of the distribution box body;

2. The utility model provides a cavity between the inner wall and the outer wall of the distribution box body to reduce the influence of the external environment temperature on the inner layer of the distribution box body, thereby improving its heat insulation performance. At the same time, the first heat dissipation fin is used to dissipate the heat of the distribution box body, thereby effectively improving the dustproofness of the distribution box body;

3. The utility model uses a temperature sensor and a controller in combination, so that when the temperature inside the distribution box exceeds the value set in the controller, the fan starts and works, thereby effectively avoiding the increase of power loss due to continuous operation of the fan.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of the present invention;

Figure 2 is a second schematic diagram of the overall structure of the utility model;

FIG3 is a schematic diagram of the overall structure of the power distribution box body of the present invention after being cut;

FIG4 is a schematic diagram of a section of the processing box in the present invention;

FIG. 5 is a second schematic diagram of a partial structure of a treatment box after cutting in the present invention.

The meaning of each number in the figure is:

1. Distribution box body; 11. Cavity; 12. First heat dissipation fin; 13. Temperature sensor; 14. Inspection door panel;

2. Fan; 21. Air duct;

3. Processing box; 31. Connecting pipe; 32. Fan; 33. Controller;

4. Hollow board; 41. Card strip; 42. Sealing board;

5. Semiconductor cooling sheet; 51. Second heat dissipation fin.

Detailed ways

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Please refer to Figures 1 to 5. The utility model provides a technical solution:

A distribution box with good heat insulation and high cooling efficiency, comprising a distribution box body 1, a cavity 11 is opened between the inner wall and the outer wall of the side of the distribution box body 1, and the inner outer wall of the distribution box body 1 is provided with a plurality of first heat dissipation fins 12 arranged in a matrix, and one end of the first heat dissipation fin 12 away from the inner outer wall of the distribution box body 1 passes through the outer inner wall of the distribution box body 1 and extends to the outside, so that the heat on the first heat dissipation fin 12 is taken away by the flow of external air to achieve heat dissipation of the distribution box body 1;

As a preferred embodiment of the present invention, a heat dissipation aluminum plate is embedded in the inner layer of the distribution box body 1 and at a position corresponding to the first heat dissipation fins 12. A plurality of heat dissipation aluminum plates are embedded and are distributed at equal intervals. The number of heat dissipation aluminum plates is consistent with the number of rows of the first heat dissipation fins 12 and corresponds one to one. Thermal conductive silicone grease is coated between the heat dissipation aluminum plate and the first heat dissipation fins 12 to improve the thermal conductivity of the inner layer of the distribution box body 1, thereby improving the efficiency of transferring the temperature on the inner layer of the distribution box body 1 to the first heat dissipation fins 12.

A fan 2 and an air duct 21 for conveying the gas in the cavity 11 to the processing box 3 are provided on one side of the distribution box body 1. A connecting pipe 31 is provided between the processing box 3 and the distribution box body 1. One end of the connecting pipe 31 passes through the outer wall of the processing box 3 and communicates with the interior thereof. The other end of the connecting pipe 31 passes through the outer wall of the distribution box body 1 and communicates with the interior of the cavity 11. A semiconductor refrigeration sheet 5 for cooling the interior thereof is provided in the processing box 3.

As a preferred embodiment of the present invention, the heat dissipation surface of the semiconductor refrigeration sheet 5 is provided with a plurality of second heat dissipation fins 51 arranged in a matrix, and the second heat dissipation fins 51 extend to the outside of the processing box 3 from one side of the semiconductor refrigeration sheet 5 so that the second heat dissipation fins 51 can be cooled by the flow of external air, thereby improving the heat dissipation efficiency of the heat dissipation surface of the semiconductor refrigeration sheet 5 and improving the working efficiency of the cooling surface of the semiconductor refrigeration sheet 5;

As a preferred embodiment of the present invention, a temperature sensor 13 for detecting the internal temperature of the distribution box body 1 is provided inside the distribution box body 1, and a controller 33 for controlling the switch of the fan 2 is provided on the outer wall of the processing box 3. The temperature sensor 13 and the fan 2 are electrically connected to the controller 33 through wires, respectively. When the temperature sensor 13 detects that the temperature inside the distribution box body 1 exceeds the value set by the controller 33, the fan 2 is started through the controller 33;

It is worth noting that the electronic components in the controller 33, the fan 2, the temperature sensor 13 and other components in this embodiment are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods. The specific connection means should refer to the above working principle, which are all well-known technologies in the art and will not be repeated here.

As a preference of this embodiment, a fan 32 for accelerating the flow rate of gas inside the processing box 3 is provided on the top of the processing box 3. The fan 32 is detachably connected to the processing box 3 by bolts to improve the convenience of disassembly and assembly of the fan 32.

As a preferred embodiment of the present invention, a hollow plate 4 with a hollow structure is further provided in the processing box 3. The center of the hollow plate 4 is filled with desiccant particles. The hollow plate 4 is slidably connected to the processing box 3 through a clamping strip 41. One end of the hollow plate 4 passes through the inner wall of the processing box 3 and is provided with a sealing plate 42. By pulling the sealing plate 42, the hollow plate 4 can be pulled out of the processing box 3, and then the hollow plate 4 can be replaced to prevent the desiccant particles filled in the center from affecting the dehumidification effect after long-term use.

It should be added that an inspection door panel 14 is hinged on the front side of the distribution box body 1 so that the electrical equipment inside the distribution box body 1 can be inspected by hingedly rotating the inspection door panel 14. An insulating cavity is provided between the inner and outer walls of the inspection door panel 14 so as to reduce the impact of the external environment on the internal ambient temperature of the distribution box body 1.

When the power distribution box of the utility model has good heat insulation and high cooling efficiency, the first heat dissipation fin 12 transfers the heat of the inner layer of the power distribution box body 1 to the outside and then realizes heat dissipation through the flow of external air. In extreme weather, the heat dissipation effect of the first heat dissipation fin 12 is poor. At this time, the heat in the power distribution box body 1 cannot be discharged, and then the temperature sensor 13 detects that the internal temperature of the power distribution box body 1 exceeds the value set by the controller 33;

Then, the fan 2 is started through the controller 33, and the gas in the cavity 11 is transported to the processing box 3 with the cooperation of the fan 2 and the air duct 21. At the same time, the semiconductor refrigeration plate 5 is used to cool the processing box 3, so that the gas entering the processing box 3 is in contact with the cold air to achieve cooling. The cooled gas passes through the holes on the hollow plate 4 and comes into contact with the desiccant particles filled in the center thereof to achieve dehumidification. The dehumidified gas is transported back to the cavity 11 through the connecting pipe 31 to achieve cooling of the first heat dissipating fin 12, so that the temperature in the distribution box body 1 can be replaced with the temperature in the cavity 11 to improve the cooling efficiency of the distribution box body 1.

The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims (7)

1. A distribution box with good thermal insulation and high cooling efficiency, comprising a distribution box body (1), characterized in that: a cavity (11) is opened between the inner wall and the outer wall of the side of the distribution box body (1), the inner outer wall of the distribution box body (1) is provided with a plurality of first heat dissipation fins (12) arranged in a matrix, a fan (2) and an air duct (21) for conveying the gas in the cavity (11) to the processing box (3) on one side of the distribution box body (1), a connecting pipe (31) is provided between the processing box (3) and the distribution box body (1), and a semiconductor refrigeration plate (5) is provided in the processing box (3) for cooling the interior thereof. 2. The distribution box with good thermal insulation and high cooling efficiency as described in claim 1 is characterized in that: one end of the first heat dissipation fin (12) away from the inner outer wall of the distribution box body (1) passes through the outer inner wall of the distribution box body (1) and extends to the outside, and a heat dissipation aluminum plate is embedded in the inner layer of the distribution box body (1) and corresponding to the first heat dissipation fin (12). 3. The distribution box with good thermal insulation and high cooling efficiency as described in claim 2 is characterized in that: the heat dissipation aluminum plates are embedded in multiple and evenly spaced arrangements, the number of the heat dissipation aluminum plates is consistent with the number of rows of the first heat dissipation fins (12) and corresponds one to one, and thermal conductive silicone grease is coated between the heat dissipation aluminum plates and the first heat dissipation fins (12). 4. The distribution box with good thermal insulation and high cooling efficiency as described in claim 1 is characterized in that: a temperature sensor (13) for detecting the internal temperature of the distribution box body (1) is provided inside the distribution box body (1), and a controller (33) for switching the fan (2) is provided on the outer wall of the processing box (3). 5. The distribution box with good thermal insulation and high cooling efficiency as described in claim 1 is characterized in that: the heat dissipation surface of the semiconductor refrigeration plate (5) is provided with a plurality of second heat dissipation fins (51) arranged in a matrix, and the second heat dissipation fins (51) extend to the outside of the processing box (3) away from the side of the semiconductor refrigeration plate (5). 6. The distribution box with good thermal insulation and high cooling efficiency as described in claim 1 is characterized in that a fan (32) for accelerating the flow rate of gas inside the processing box (3) is provided on the top of the processing box (3), and the fan (32) is detachably connected to the processing box (3) by bolts. 7. The distribution box with good heat insulation and high cooling efficiency as claimed in claim 1 is characterized in that: a hollow plate (4) with a hollow structure is also provided in the processing box (3), and the center of the hollow plate (4) is filled with desiccant particles.