CN216672330U

CN216672330U - Heat dissipation gas tank and gas insulation switch cabinet with same

Info

Publication number: CN216672330U
Application number: CN202122796442.XU
Authority: CN
Inventors: 许汉斌; 李玲; 张迪
Original assignee: Cooper Ningbo Electric Co Ltd
Current assignee: Cooper Ningbo Electric Co Ltd
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-06-03
Anticipated expiration: 2031-11-15

Abstract

The utility model relates to a heat dissipation air box and a gas insulation switch cabinet with the same. The heat dissipation gas tank includes: a box body, wherein black coatings are arranged on the inner and outer surfaces of at least an upper side plate and a rear side plate, and an opening is formed on the rear side plate; the outer surface of the heat dissipation box is provided with a black coating and is installed to the opening of the rear side plate to seal the opening; and a lateral heat sink having a black coating on an outer surface thereof and mounted to an outer surface of the upper side plate.

Description

Heat dissipation gas tank and gas insulation switch cabinet with same

Technical Field

The utility model relates to the technical field of electrical equipment, in particular to a heat dissipation air box and a gas insulation switch cabinet with the same.

Background

The gas insulated switchgear generally adopts insulating gas such as sulfur hexafluoride to intensively seal primary electric elements such as a circuit breaker, a three-position isolating switch, a bus and the like in a low-pressure gas box, has the advantages of small volume, no influence of external environment and the like, and is widely applied to occasions with high altitude and high pollution level. However, the primary electrical components of the gas insulated switchgear in the prior art are sealed in the gas box, so that the temperature rise of the gas box is too high, which accelerates the aging of the components and reduces the insulation performance, which in turn affects the safety and stability of the operation of the switchgear.

There is therefore a need in the art for a heat sink air box with improved heat dissipation.

SUMMERY OF THE UTILITY MODEL

The present invention aims to provide a heat dissipating air box which solves at least some of the above problems.

The utility model also aims to provide a gas insulated switch cabinet applying the improved radiating gas box.

According to an aspect of the present invention, there is provided a heat radiating air box including: a box body, wherein black coatings are arranged on the inner and outer surfaces of at least an upper side plate and a rear side plate, and an opening is formed on the rear side plate; the outer surface of the heat dissipation box is provided with a black coating and is installed to the opening of the rear side plate to seal the opening; and a lateral heat sink having a black coating on an outer surface thereof and mounted to an outer surface of the upper side plate.

Compared with the prior art, the black coating is arranged on the upper side plate and the rear side plate, and the transverse radiating fins and the radiating box which are also provided with the black coating are respectively arranged on the upper side plate and the rear side plate, so that on one hand, the heat radiation from the inside of the box body to the external environment can be enhanced, on the other hand, the radiating area of the box body can be increased, so that the heat conduction from the box body to the external environment is increased, the radiating effect of the radiating air box is greatly improved, and the box body can be filled with environment-friendly gas such as nitrogen or dry air to replace sulfur hexafluoride in the prior art, so that the pollution is reduced.

Preferably, the heat dissipation air box further comprises vertical cooling fins, and black coatings are arranged on the outer surfaces of the vertical cooling fins and are mounted on the outer surfaces of the rear side plates.

Preferably, black coatings are arranged on the inner and outer surfaces of all the side plates of the box body.

Preferably, the opening and the heat dissipation case are located above the vertical heat dissipation fins.

Preferably, the number of the transverse radiating fins is multiple and arranged at intervals.

Preferably, the plurality of the lateral fins includes a plurality of first lateral fins and a plurality of second lateral fins arranged at intervals in an extending direction of the first lateral fins with respect to the first lateral fins.

Preferably, the lengths of the plurality of first lateral fins are designed not to be completely the same.

Preferably, the number of the vertical radiating fins is multiple and the vertical radiating fins are arranged at intervals.

According to another aspect of the present invention, there is provided a gas-insulated switchgear comprising a cabinet body and the aforementioned heat dissipating gas box connected to the cabinet body.

Additional features and advantages of the utility model will be set forth in part in the description which follows, and in part will be apparent to those having ordinary skill in the art upon examination of the following, or may be learned from the practice of the utility model.

Drawings

Embodiments of the utility model are described in detail below with reference to the attached drawing figures, wherein:

fig. 1 is a schematic view of a gas-insulated switchgear according to the utility model;

FIG. 2 is a perspective view of a heat sink air box according to the present invention;

FIG. 3 is a top view of a heat sink air box according to the present invention;

fig. 4 is a front view of a heat sink air box according to the present invention.

Description of reference numerals:

1-gas insulated switchgear; 10-heat dissipation air box; 11-a box body; 111-upper side plate; 112-rear side plate; 12-a heat dissipation box; 13-transverse fins; 131-a first transverse fin; 132-a second transverse fin; 14-vertical fins; 15-a first conductive connection; 16-a second conductive connection; 20-cabinet body.

Detailed Description

Referring now to the drawings, a schematic of the disclosed heat dissipating gas box and its applied gas insulated switchgear will be described in detail. Although the drawings are provided to present some embodiments of the utility model, the drawings are not necessarily to scale of particular embodiments, and certain features may be exaggerated, removed, or partially sectioned to better illustrate and explain the present disclosure. The position of some components in the drawings can be adjusted according to actual requirements on the premise of not influencing the technical effect. The appearances of the phrase "in the drawings" or similar language in the specification are not necessarily referring to all drawings or examples.

Certain directional terms used hereinafter to describe the drawings, such as "inner", "outer", "above", "below", and other directional terms, will be understood to have their normal meaning and refer to those directions as they normally relate to when viewing the drawings. Unless otherwise indicated, the directional terms described herein are generally in accordance with conventional directions as understood by those skilled in the art.

The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.

As used herein, the terms "joined," "connected," and the like, are intended to encompass both components which are indirectly joined together through intervening layers (e.g., adhesives, welds, etc.) or intermediate members (e.g., connectors, transitions, etc.), and components which are directly joined together without any intervening layers (e.g., adhesives, welds, etc.) or intermediate members (e.g., connectors, transitions, etc.).

Fig. 1 to 4 show, by way of example, a heat dissipation air box 10 and a gas insulated switchgear 1 to which the heat dissipation air box 10 is applied, where the heat dissipation air box 10 is beneficial to improve the internal temperature rise phenomenon so as to prevent the electrical components inside the heat dissipation air box 10 from aging and the insulation performance between the electrical components from being reduced, thereby improving the safety and stability of the gas insulated switchgear 1.

It should be noted that the front side described in this embodiment refers to the left side of the page on which fig. 1 is located, the rear side refers to the right side of the page on which fig. 1 is located, the upper side and the lower side refer to the upper side and the lower side in fig. 1, respectively, the left side and the right side refer to the left side and the right side of the apparatus when viewed from the aforementioned front side as a viewing angle, the vertical direction refers to the up-down direction in fig. 1, and the lateral direction refers to the horizontal direction in fig. 1.

As shown in fig. 1, a gas insulated switchgear 1 may generally include a cabinet 20 and a heat dissipating air box 10. The rear portion of the cabinet 20 may be recessed to form a shoulder, i.e., stepped, so that the radiator box 10 may be seated on the lateral side of the shoulder in conformity with the vertical side of the shoulder. In addition, a primary electrical component may be built in the heat dissipation air box 10 and filled with an insulating gas, and a secondary electrical component connected to a first electrical component inside the heat dissipation air box 10 to monitor, adjust, control, protect, etc., the operation of the primary electrical component may be mounted inside the cabinet 20.

As shown in fig. 1 and 2, the heat dissipation air box 10 may include a box body 11, a heat dissipation box 12, and lateral fins 13. An opening for mounting the primary electric component to the inside of the case 11 may be formed on the rear side plate 112 of the case 11, a heat dissipation case 12 may be mounted at the opening of the rear side plate 112 to enclose the opening on the rear side plate 112, and a lateral heat sink 13 may be mounted on an outer surface of the upper side plate 111. Wherein, the heat dissipation box 12 and the transverse heat dissipation fins 13 can increase the heat dissipation area of the box body 11 to improve the heat dissipation effect of the box body 11, and the heat dissipation box 12 and the transverse heat dissipation fins 13 can be made of materials with good heat conduction performance, such as aluminum materials.

In addition, black coatings may be disposed on the outer surfaces of the heat dissipation case 12 and the transverse heat dissipation fins 13, and black coatings may be disposed on the inner and outer surfaces of the upper side plate 111 where the transverse heat dissipation fins 13 are mounted and the rear side plate 112 where the heat dissipation case 12 is mounted on the case 11, so as to cooperate with the heat dissipation case 12 and the transverse heat dissipation fins 13 to improve heat radiation from the case 11 to the external environment, thereby improving the heat dissipation effect on the case 11. It should be noted that both the heat dissipation case 12 and the lateral fins 13 may be detachably attached to the case 11, and the outer surfaces of the heat dissipation case 12 and the lateral fins 13 refer to surfaces exposed to the external environment when the heat dissipation case 12 and the lateral fins 13 are separated from the case 11.

Specifically, when the primary electric element in the box body 11 passes through the current in the direction indicated by the arrow in fig. 1, the primary electric element in the box body 11 generates heat to move the insulating gas in the box body 11 upward by being heated, so that the heat can be radiated outward through the upper side plate 111 and the rear side plate 112 provided with the black coating and be radiated by the lateral heat radiation fins 13 provided with the black coating on the upper side plate 111 and the heat radiation box 12 provided with the black coating on the rear side plate 112, thereby greatly improving the heat radiation effect of the heat radiation gas box 10 of the present invention, and the inside of the heat radiation gas box 10 can be filled with the environmental protection gas such as nitrogen or air on the basis of ensuring the heat radiation effect, and reducing the pollution.

Optionally, in addition to the upper side plate 111 and the rear side plate 112 of the box body 11, the inner and outer surfaces of the other side plates of the box body 11, i.e., all the side plates of the box body 11, may also be provided with black coatings to further enhance the heat radiation from the inside to the external environment of the heat radiation air box 10 of the present invention. In addition, if the gas insulated switchgear 1 is used alone, the vertical fins 14 with black coatings on the outer surfaces may also be installed on the outer surfaces of the left and right side plates of the enclosure 11, so as to further enhance the heat dissipation effect of the heat dissipation air box 10. Wherein the vertical fins 14 and the horizontal fins 13 may be designed as heat radiating fins made of aluminum material, and the black coating of the case body 11, the heat radiating case 12, the horizontal fins 13 and the vertical fins 14 may be formed by spraying black paint such as black heat radiating paint or may be made by an oxidation blackening process.

Alternatively, considering that the insulating gas inside tank 11 moves upward and accumulates in the substantially middle-upper region of tank 11 after being heated, the temperature of the upper portion of tank 11 is higher than that of the lower portion of tank 11, and accordingly the temperature rise problem in the middle-upper portion of tank 11 is more serious than that in the lower portion of tank 11. For this, an opening may be provided in an upper middle region of the rear side plate 112 of the case 11 and the heat dissipation case 12 may be installed, and the vertical heat dissipation fins 14 may be installed in a lower side region of the rear side plate 112 of the case 11 where the opening is not disposed, to fully utilize the space on the rear side plate 112 of the case 11 and improve the heat dissipation effect to the case 11.

Alternatively, the lateral fins 13 may be configured to be mounted to the upper side plate 111 of the case 11 in a single piece. Or the number of the lateral fins 13 may be designed to be plural and arranged to be spaced apart from each other for cost reasons. Further, the vertical fins 14 may be arranged similarly to the horizontal fins 13 to be mounted to the rear side plate 112 of the case 11 or a plurality thereof in a single piece and arranged at a distance from each other. As shown in fig. 2 and 3, the horizontal heat dissipation fins 13 may extend along the front-back direction of the box 11 to avoid affecting the adjacent gas insulated switchgear 1, and the vertical heat dissipation fins 14 may extend along the up-down direction to facilitate the hot air flow to flow upward between the adjacent fins to take away heat.

Alternatively, the upper side plate 111 of the case 11 may be formed with relief holes to allow the first and second

conductive connectors

15 and 16 extending from the inside of the case 11 to extend therethrough to be connected with the external conductor. Here, the first conductive connecting member 15 and the second conductive connecting member 16 may be generally located in a bus bar compartment and an instrument compartment of the gas insulated switchgear 1, respectively, and the bus bar compartment and the instrument compartment may be separated by an insulating partition, so that the plurality of transverse fins 13 may be arranged to include a plurality of first transverse fins 131 and a plurality of second transverse fins 132 spaced apart from the first transverse fins 131 in a length extending direction of the first transverse fins 131, so that the plurality of first transverse fins 131 and the plurality of second transverse fins 132 are located in different compartments, respectively. This arrangement can sufficiently utilize the space on the outer surface of the upper side plate 111 of the case 11 to improve the heat radiation effect to the case 11. Alternatively, the lengths of the plurality of first lateral fins 131 may not be designed to be exactly the same to form the relief area to the first conductive connection 15, as shown in fig. 2 and 3.

It should be understood that although the description is in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein may be combined as suitable to form other embodiments, as will be appreciated by those skilled in the art.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent alterations, modifications and combinations can be made by those skilled in the art without departing from the spirit and principles of the utility model.

Claims

1. A heat sink air box (10), characterized in that the heat sink air box (10) comprises:

a box body (11) which is provided with black coatings on at least the inner and outer surfaces of an upper side plate (111) and a rear side plate (112) and is provided with an opening on the rear side plate (112);

a heat dissipation case (12) provided with a black coating on an outer surface thereof and mounted to the opening of the rear side plate (112) to enclose the opening;

and a lateral heat sink (13) provided with a black coating on an outer surface thereof and mounted to an outer surface of the upper side plate (111).

2. The air box (10) according to claim 1, further comprising vertical fins (14), wherein the vertical fins (14) are provided with a black coating on the outer surface and are mounted to the outer surface of the rear side plate (112).

3. The heat sink air box (10) according to claim 1 or 2, wherein all side panels of the box body (11) are provided with black coatings on their inner and outer surfaces.

4. The airbox (10) according to claim 2, characterised in that the aperture and the airbox (12) are located above the vertical fins (14).

5. The box (10) according to claim 1, characterised in that said transverse fins (13) are plural in number and arranged at a distance from each other.

6. The heat sink air box (10) according to claim 5, wherein the plurality of transverse fins (13) comprises a plurality of first transverse fins (131) and a plurality of second transverse fins (132) arranged at intervals in an extending direction of the first transverse fins (131) with respect to the first transverse fins (131).

7. The heat-dissipating air box (10) according to claim 6, characterized in that the lengths of the first transverse fins (131) are designed to be not identical.

8. The airbox (10) according to claim 2, characterised in that said vertical fins (14) are plural in number and arranged at a distance from each other.

9. A gas-insulated switchgear cabinet (1), characterized in that the gas-insulated switchgear cabinet (1) comprises a cabinet body (20) and a heat-dissipating gas box (10) according to any of claims 1 to 8 connected to the cabinet body (20).