Electric power engineering distribution box with protection structure

Abstract

The utility model discloses an electric power engineering distribution box with a protection structure, which relates to the field of electric power engineering equipment and comprises a heat insulation shell, a fan is mounted at one end of the outer wall of the heat insulation shell, an inner container shell is arranged in an inner cavity of the heat insulation shell, the heat insulation shell and the inner container shell are both of a rectangular cavity structure with an opening at one end, and the heat insulation shell and the inner container shell are arranged in the rectangular cavity structure. A heat dissipation cavity is formed between the heat insulation outer shell and the inner container shell. According to the utility model, through the arrangement of the heat insulation housing, the influence of external high temperature on the internal temperature of the distribution box is avoided, and meanwhile, the fan continuously blows the heat radiation fins on the outer side of the inner container housing to accelerate the flow rate of air around the heat radiation fins, so that the heat exchange rate of the inner side and the outer side of the inner container housing is accelerated, and the cooling effect is realized. In the heat dissipation process of the distribution box, dust and humid air do not interfere with electronic elements in the distribution box, and meanwhile it can be effectively guaranteed that the temperature in the inner container shell is kept within a safe temperature range.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power engineering equipment, in particular to an electric power engineering distribution box with a protective structure. Background Art

[0002] The distribution box is a low-voltage power distribution device that assembles switchgear, measuring instruments, protective electrical appliances and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to the requirements of electrical wiring. The distribution box has the characteristics of small size, easy installation, special technical performance, fixed position, unique configuration function, no site restrictions, relatively common application, stable and reliable operation, high space utilization, small footprint and environmental protection. It can reasonably distribute electrical energy, facilitate the opening and closing operation of the circuit, has a high level of safety protection, and can intuitively display the conduction status of the circuit.

[0003] The protection of the distribution box is mainly reflected in three aspects: dustproof, moisture-proof and high temperature-proof. At present, some distribution boxes have heat dissipation holes on both sides of the box body. However, dust and moisture can easily enter the distribution box through the heat dissipation holes and damage electronic components. Secondly, the existing fully enclosed distribution box has poor heat dissipation effect, especially in high temperature environment. Utility Model Content

[0004] The purpose of the utility model is to provide a power engineering distribution box with a protective structure in order to solve the problems mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electric power engineering distribution box with a protective structure, comprising a heat-insulating outer shell, a fan is installed at one end of the outer wall of the heat-insulating outer shell, and an inner shell is arranged in the inner cavity of the heat-insulating outer shell, the heat-insulating outer shell and the inner shell are both rectangular hollow structures with one end open, and a heat dissipation chamber is formed between the heat-insulating outer shell and the inner shell;

[0006] The outer wall of the inner shell is provided with a plurality of equidistantly distributed heat dissipating fins, and the inner cavity wall of the heat-insulating outer shell is provided with the same number of limiting slots as the heat dissipating fins, and when the inner shell is completely in the inner cavity of the heat-insulating outer shell, the outer ends of the plurality of heat dissipating fins are respectively inserted into the plurality of limiting slots;

[0007] A door frame is provided between the heat-insulating outer shell and the inner shell, which is used to dock and seal the open end of the heat dissipation chamber. An air inlet is provided at one end of the outer surface of the door frame, and an air outlet is provided at the other end of the outer surface of the door frame. Both the air inlet and the air outlet are communicated with the heat dissipation chamber, and a box door is hinged at the outer end of the door frame.

[0008] As a further solution of the utility model: the door frame is a "U"-shaped frame structure, and the door frame is connected to one end of the heat dissipation chamber to form a matching connection groove.

[0009] As a further solution of the utility model: a plurality of heat dissipation fins divide the heat dissipation chamber into a plurality of channels.

[0010] As a further solution of the utility model: the air outlet is located at one end of the docking groove, the air inlet is located at the other end of the docking groove, and a plurality of duct joints are evenly distributed on a side wall of the air inlet.

[0011] As a further solution of the utility model: the number of the plurality of conduit connectors is the same as the number of the channels, and the plurality of conduit connectors are connected to the plurality of channels in a one-to-one correspondence.

[0012] As a further solution of the utility model: the output end of the fan is connected to the plurality of conduit connectors via a conduit.

[0013] As a further solution of the utility model: the door frame is fixedly connected to the heat-insulating outer shell and the inner shell by welding or bolts, and the connection between the door frame, the heat-insulating outer shell and the inner shell is coated with sealant.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] This solution sets up a heat-insulating shell to prevent the external high temperature from affecting the temperature inside the distribution box. At the same time, the fan is used to continuously blow the heat dissipation fins on the outside of the inner shell to speed up the air flow around the heat dissipation fins, thereby speeding up the heat exchange rate between the inside and outside of the inner shell to achieve a cooling effect. During the heat dissipation process of the distribution box, there will be no dust and humid air to interfere with the electronic components inside the distribution box, and it can also effectively ensure that the temperature inside the inner shell remains within a safe temperature range. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the inner shell structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the door frame structure of the present utility model.

[0020] In the figure: 1. heat-insulating outer shell; 11. limiting slot; 2. fan; 3. inner shell; 31. heat dissipation fins; 4. door frame; 41. docking slot; 42. air outlet; 43. air inlet end; 44. duct joint; 5. box door. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figures 1 to 4 In an embodiment of the utility model, a power engineering distribution box with a protective structure includes a heat-insulating shell 1, a fan 2 is installed at one end of the outer wall of the heat-insulating shell 1, and an inner shell 3 is arranged in the inner cavity of the heat-insulating shell 1. The heat-insulating shell 1 and the inner shell 3 are both rectangular hollow structures with one end open, and a heat dissipation chamber is formed between the heat-insulating shell 1 and the inner shell 3; a plurality of heat dissipation fins 31 are arranged on the outer wall of the inner shell 3 at equal distances, and the inner cavity wall of the heat-insulating shell 1 is provided with the same heat dissipation fins 31. A number of limiting slots 11 are provided. When the inner shell 3 is completely in the inner cavity of the heat-insulating outer shell 1, the outer ends of the plurality of heat-dissipating fins 31 are respectively inserted into the plurality of limiting slots 11. A door frame 4 is provided between the heat-insulating outer shell 1 and the inner shell 3 for docking and blocking the opening end of the heat-dissipating chamber. An air inlet end 43 is provided at one end of the outer surface of the door frame 4, and an air outlet 42 is provided at the other end of the outer surface of the door frame 4. Both the air inlet end 43 and the air outlet 42 are communicated with the heat-dissipating chamber. A box door 5 is hinged at the outer end of the door frame 4.

[0023] In this embodiment: Since some distribution boxes currently have heat dissipation holes on both sides of the box body, dust and humid water vapor can easily enter the distribution box through the heat dissipation holes and damage the electronic components. Secondly, the existing fully enclosed distribution box has poor heat dissipation effect, especially in high temperature environments. Therefore, this solution sets up a heat-insulating outer shell 1 to prevent the external high temperature from affecting the temperature inside the distribution box. At the same time, the fan 2 is used to continuously blow the heat dissipation fins 31 on the outside of the inner shell 3 to speed up the air flow rate around the heat dissipation fins 31, thereby speeding up the heat exchange rate between the inside and outside of the inner shell 3 to achieve a cooling effect. During the heat dissipation process of the distribution box, there will be no dust and humid air interfering with the electronic components inside the distribution box, and it can also effectively ensure that the internal temperature of the inner shell 3 remains within a safe temperature range.

[0024] Specifically, the heat-insulating outer shell 1 of the present scheme is a metal shell, and a heat-insulating and insulating coating can be applied on the outer shell, which can not only block the interference of external high temperature, but also effectively avoid the safety hazard caused by leakage of the distribution box. The inner shell 3 is made of metal material with good thermal conductivity. When the electronic components in the inner shell 3 heat up, the heat is transferred from the inner shell 3 to the heat dissipation fins 31 on the outside of the inner shell 3, and then the fan 2 continuously blows the heat dissipation fins 31 to cool down. This spacing cooling method can not only effectively ensure that the internal temperature of the inner shell 3 is maintained within the normal range, but also prevent dust and water vapor from interfering with the electronic components in the inner shell 3.

[0025] Please refer to Figure 2 , Figure 4 , multiple heat dissipation fins 31 divide the heat dissipation chamber into multiple channels; the air outlet 42 is located at one end of the docking groove 41, the air inlet end 43 is located at the other end of the docking groove 41, and multiple duct joints 44 are evenly distributed on a side wall of the air inlet end 43; the number of multiple duct joints 44 is the same as the number of channels, and the multiple duct joints 44 are connected to the multiple channels in a one-to-one correspondence; the output end of the fan 2 is connected to the multiple duct joints 44 through a duct.

[0026] In this embodiment: a plurality of heat dissipation fins 31 are distributed in the heat dissipation chamber, and a plurality of channel structures are formed by the heat dissipation fins 31, so that a larger heat dissipation area is in the heat dissipation chamber. At the same time, the air flows smoothly, which accelerates the cooling effect of the heat dissipation fins 31, thereby indirectly improving the heat exchange rate inside and outside the inner shell 3.

[0027] It should be noted that a partition net is fixedly connected to the air outlet 42 to prevent large foreign objects from entering the channel and causing blockage of the channel, thereby affecting the heat dissipation efficiency.

[0028] Please refer to Figure 4 The door frame 4 is a "U"-shaped frame structure, and a matching docking groove 4 is provided at one end of the door frame 4 butted against the heat dissipation chamber; the door frame 4 is fixedly connected to the heat-insulating outer shell 1 and the inner shell 3 by welding or bolts, and the joints between the door frame 4 and the heat-insulating outer shell 1 and the inner shell 3 are coated with sealant.

[0029] In this embodiment, sealant is applied to the joints between the heat-insulating outer shell 1 , the inner shell 3 and the door frame 4 , so as to avoid the formation of gaps between the inner shell 3 and the door frame 4 , thereby preventing dust and water vapor from entering the inner shell 3 .

[0030] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A power engineering distribution box with a protective structure, comprising a heat-insulating housing (1), characterized in that: A fan (2) is installed at one end of the outer wall of the heat-insulating outer shell (1), and an inner shell (3) is arranged in the inner cavity of the heat-insulating outer shell (1); the heat-insulating outer shell (1) and the inner shell (3) are both rectangular hollow structures with one end open, and a heat dissipation chamber is formed between the heat-insulating outer shell (1) and the inner shell (3); The outer wall of the inner shell (3) is provided with a plurality of equidistantly distributed heat dissipating fins (31); the inner cavity wall of the heat-insulating outer shell (1) is provided with the same number of limiting slots (11) as the heat dissipating fins (31); when the inner shell (3) is completely in the inner cavity of the heat-insulating outer shell (1), the outer ends of the plurality of heat dissipating fins (31) are respectively inserted into the plurality of limiting slots (11); A door frame (4) is provided between the heat-insulating outer shell (1) and the inner shell (3) for butting against and sealing the open end of the heat dissipation chamber; an air inlet (43) is provided at one end of the outer surface of the door frame (4), and an air outlet (42) is provided at the other end of the outer surface of the door frame (4); the air inlet (43) and the air outlet (42) are both connected to the heat dissipation chamber; and a box door (5) is hingedly connected to the outer end of the door frame (4).

2. The power engineering distribution box with a protective structure according to claim 1, characterized in that: The door frame (4) is a U-shaped frame structure, and one end of the door frame (4) butts against the heat dissipation chamber to form a matching butt joint groove (41).

3. The power engineering distribution box with a protective structure according to claim 2, characterized in that: The plurality of heat dissipation fins (31) divide the heat dissipation chamber into a plurality of channels.

4. The power engineering distribution box with a protective structure according to claim 3, characterized in that: The air outlet (42) is located at one end of the docking groove (41), the air inlet end (43) is located at the other end of the docking groove (41), and a plurality of conduit joints (44) are evenly distributed on a side wall of the air inlet end (43).

5. The power engineering distribution box with a protective structure according to claim 4, characterized in that: The number of the plurality of conduit connectors (44) is the same as the number of the channels, and the plurality of conduit connectors (44) are connected to the plurality of channels in a one-to-one correspondence.

6. The power engineering distribution box with a protective structure according to claim 5, characterized in that: The output end of the fan (2) is connected to the plurality of conduit connectors (44) via a conduit.

7. The power engineering distribution box with a protective structure according to claim 1, characterized in that: The door frame (4) is fixedly connected to the heat-insulating outer shell (1) and the inner shell (3) by welding or bolts, and the connection between the door frame (4), the heat-insulating outer shell (1) and the inner shell (3) is coated with sealant.

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