Top heat insulation structure of outdoor ring main unit

Abstract

The utility model discloses a top heat insulation structure of an outdoor ring main unit, and relates to a heat insulation structure used in cooperation with ring main unit equipment in a power supply system. The utility model aims to provide the top heat insulation structure of the outdoor ring main unit, which has an obvious heat insulation effect and can effectively prevent condensation from being generated in the ring main unit. The top heat insulation structure of the outdoor ring main unit comprises an inner top, a heat insulation top is installed above the inner top, the shape of the cross section of the top of the heat insulation top is the same as that of the top of the inner top, the periphery of the side wall of the heat insulation top is of a closed structure, and the bottom is of an open structure. The heat insulation roof and the inner roof are connected through a plurality of supporting pieces arranged between the top of the heat insulation roof and the top of the inner roof.

Description

Technical Field

[0001] The utility model relates to the technical field of power distribution, in particular to a top heat insulation structure of an outdoor ring network box. Background Art

[0002] In the power transmission and distribution system, the 12kV outdoor ring network box as a distribution network product has been widely used, especially the outdoor ring network box with a metal shell. The main structure of this product is: a metal shell, inside which is installed a switchgear with the ability to break load current and short-circuit current. The ring network box is used outdoors. Due to the influence of the alternating hot and cold ambient temperature, condensation will be generated inside, which will affect the electrical performance and service life of the internal switchgear. Therefore, the shell design of the ring network box needs to have heat insulation and anti-condensation effects. The structures of the ring network boxes on the market are different, but the heat insulation effect is not ideal.

[0003] like Figure 6 As shown in the figure, the heat insulation and anti-condensation structure designed on the top of the metal shell outdoor ring network box on the market, such as the non-metallic flat plate, separates the shell from the internal ring network cabinet. When the top of the shell is exposed to strong sunlight, a large amount of heat will be generated. The existing products rely on non-metallic flat plates to block the radiation from the top of the shell, but the heat still enters the inside of the ring network box and can also enter the ring network box through the surrounding of the insulation board. In addition, the condensation generated by the alternation of hot and cold will drip on the upper plane of the insulation board. Although it cannot drip directly on the switchgear, it will still generate high humidity inside the box, heavy moisture, poor insulation and anti-condensation effects, and cannot meet the standards and performance requirements. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a top heat insulation structure of an outdoor ring network box which has obvious heat insulation effect and can effectively prevent condensation from being generated inside the ring network box.

[0005] The utility model discloses a top heat insulation structure of an outdoor ring network box, comprising an inner top, a heat insulation top is installed above the inner top, the cross-sectional shape of the top of the heat insulation top is the same as the top of the inner top, the side walls of the heat insulation top are closed structures all around, and the bottom is an open structure, and the heat insulation top and the inner top are connected by a plurality of support members arranged between the top of the heat insulation top and the top of the inner top.

[0006] The utility model discloses a top heat insulation structure of an outdoor ring network box, wherein the inner top comprises a top surface and side walls, the cross section of the top of the inner top is a herringbone structure, and the bottom of the inner top side wall is fixedly connected to the top of the ring network box.

[0007] The utility model discloses a top heat insulation structure of an outdoor ring network box, wherein ventilation holes are arranged around the side walls of the inner top.

[0008] The utility model discloses a top heat insulation structure of an outdoor ring network box, wherein the outer dimensions of the heat insulation top are slightly larger than the inner top and the heat insulation top is covered on the outer side of the inner top.

[0009] The utility model discloses a top heat insulation structure of an outdoor ring network box, wherein the inner top, the heat insulation top and the support are all made of metal materials.

[0010] The top insulation structure of an outdoor ring network box of the utility model is different from the prior art in that a heat insulation top is arranged on the outer side of the inner top of the top insulation structure of the outdoor ring network box of the utility model, and the heat insulation top is arranged on the top of the ring network box, and keeps a certain distance from the inner top of the ring network box, so as to generate sufficient air interlayers and ventilation channels, so that the outer and uppermost herringbone shapes are directly exposed to sunlight, and the heat generated by them must first pass through the middle air gap before radiating to the inner top of the ring network box, but the ventilation and heat dissipation effect of the middle air gap is obvious, so it is difficult to radiate heat to the inner top of the ring network box, so the heat insulation effect is obvious, and it can effectively prevent condensation from being generated inside the ring network box, further avoiding the harm of condensation generated inside the outdoor ring network box to electrical equipment.

[0011] The top heat insulation structure of an outdoor ring network box of the utility model is further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a top heat insulation structure of an outdoor ring network box of the utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of a top heat insulation structure of an outdoor ring network box of the utility model;

[0014] Figure 3 It is a schematic diagram of the longitudinal internal structure of the top heat insulation structure of an outdoor ring network box of the utility model;

[0015] Figure 4 It is a structural schematic diagram of a heat-insulating top in a top heat-insulating structure of an outdoor ring network box of the utility model;

[0016] Figure 5 This is a schematic diagram of the structure of the top heat insulation structure of an outdoor ring network box of the utility model after the heat insulation top is omitted;

[0017] Figure 6 It is a schematic diagram of the internal structure of an outdoor ring network box in the prior art;

[0018] The markings in the figure are as follows: 1-inner top; 2-insulating top; 3-non-metallic flat plate; 4-support member. DETAILED DESCRIPTION

[0019] The following embodiments are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0020] Example

[0021] like Figure 1-Figure 5 As shown, the utility model provides a top heat insulation structure of an outdoor ring network box, including an inner top 1, the inner top 1 having a top surface and a side wall, and the bottom of the inner top 1 is an open structure. The cross section of the top of the inner top 1 is a herringbone structure, and the bottom of the side wall of the inner top 1 is fixedly connected to the top of the ring network box. Ventilation holes are provided around the side wall of the inner top 1.

[0022] An insulating roof 2 is installed above the inner roof 1. In this embodiment, the cross-sectional shape of the top of the insulating roof 2 is the same as that of the top of the inner roof 1, both of which are herringbone structures. The side walls of the insulating roof 2 are closed structures and no ventilation holes are provided. However, like the inner roof 1, it does not have a bottom plate and the bottom is an open structure. The outer dimensions of the insulating roof 2 are slightly larger than those of the inner roof 1, and can be covered on the outside of the inner roof 1.

[0023] like Figure 2 and Figure 3 As shown, the insulating top 2 and the inner top 1 are connected by a plurality of supporting members 4 arranged between the top of the insulating top 2 and the top of the inner top 1, so that the gabled metal top of the insulating top 2 and the two sloped surfaces of the gabled top of the inner top 1 and the vertical surfaces of the four side walls maintain a certain distance, and sufficient air interlayers and ventilation channels are generated between the two. The hot air in the interlayer is difficult to gather on the slope surface of the interlayer, and it is ventilated on all four sides, which effectively ensures the thermal insulation effect of the top of the outdoor ring network box.

[0024] The inner top 1, the heat-insulating top 2 and the supporting member 4 are all made of metal materials.

[0025] After the ring network box is installed with the top insulation structure of the utility model, the insulation top 2 is directly exposed to sunlight, and the generated heat must pass through the middle air gap before radiating to the inner top 1 of the ring network box. However, the middle air gap is ventilated on all sides, the air flow is good, the ventilation and heat dissipation effect is obvious, and the heat is difficult to accumulate and transfer, so it is difficult to radiate or conduct the heat to the inner top 1 of the ring network box, so this structure has a good insulation effect.

[0026] The utility model discloses a top heat insulation structure of an outdoor ring network box. On the outside of the gable top of the outdoor ring network box, that is, on the top of the gable top, a layer of heat-insulating gable metal top is added. The added gable metal top is fixed on the top of the ring network box, and keeps a certain distance from the top of the ring network box, so as to generate sufficient air interlayers and ventilation channels. In this way, the outer and uppermost gables are directly exposed to sunlight, and the heat generated by them must first pass through the middle air gap before being radiated to the inner top of the ring network box. However, the ventilation and heat dissipation effect of the middle air gap is obvious, so it is difficult to radiate heat to the inner top of the ring network box. Therefore, the heat insulation effect is obvious, and condensation can be effectively prevented from being generated inside the ring network box, further avoiding the harm of condensation generated inside the outdoor ring network box to electrical equipment.

[0027] Although the utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.

Claims

1. A top heat insulation structure of an outdoor ring network box, characterized in that: It includes an inner top, an insulating top is installed above the inner top, the cross-sectional shape of the top of the insulating top is the same as that of the top of the inner top, the side walls of the insulating top are closed structures, and the bottom is an open structure, and the insulating top and the inner top are connected by a plurality of support members arranged between the top of the insulating top and the top of the inner top.

2. The top heat insulation structure of an outdoor ring network box according to claim 1 is characterized in that: The inner top has a top surface and side walls, the cross section of the top of the inner top is a herringbone structure, and the bottom of the side wall of the inner top is fixedly connected to the top of the ring network box.

3. The top heat insulation structure of an outdoor ring network box according to claim 2 is characterized in that: Ventilation holes are arranged around the side walls of the inner top.

4. The top heat insulation structure of an outdoor ring network box according to claim 1 is characterized in that: The outer dimensions of the heat-insulating roof are slightly larger than the inner roof, and the heat-insulating roof is covered on the outer side of the inner roof.

5. The top heat insulation structure of an outdoor ring network box according to claim 1, characterized in that: The inner top, the heat-insulating top and the supporting member are all made of metal materials.

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