Heat dissipation gas tank for gas insulation switch cabinet and gas insulation switch cabinet with heat dissipation gas tank

Abstract

The utility model relates to a heat dissipation gas tank for a gas insulation switch cabinet and a gas insulation switch cabinet with the same, and the heat dissipation gas tank comprises a gas tank body which is internally provided with an installation cavity, and the upper end of the gas tank body is provided with a heat dissipation opening communicated with the installation cavity; the heat dissipation component comprises a heat dissipation cylinder with a connecting opening formed in the lower end and a heat dissipation structure which is arranged in the heat dissipation cylinder and connected to the inner circumferential face of the heat dissipation cylinder, and the heat dissipation cylinder is connected to the heat dissipation opening in a sealed mode through the connecting opening so as to be connected with the gas tank body in a sealed mode; the heat dissipation structure comprises an annular piece and a plurality of heat dissipation fins, the annular piece extends in the vertical direction, the upper end and the lower end of the annular piece are open, the heat dissipation fins are distributed on the outer circumferential face of the annular piece at intervals in the circumferential direction, the heat dissipation fins extend downwards from the annular piece to exceed the annular piece, and the end sides, away from the annular piece, of the heat dissipation fins are connected to the inner circumferential face of the heat dissipation barrel.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, and in particular to a heat dissipation box for gas-insulated switchgear and a gas-insulated switchgear having the same. Background Technology

[0002] Gas-insulated switchgear is widely used in various applications, such as ring network power supply systems, due to its advantages of small footprint, maintenance-free operation, and high reliability. It typically uses sulfur hexafluoride gas to seal primary electrical components such as circuit breakers, disconnectors, and busbars inside the gas chamber to effectively prevent electrical breakdown and short circuits, thereby ensuring the safe and stable operation of the gas-insulated switchgear.

[0003] Given that sulfur hexafluoride (SF6) is a high-temperature gas that exacerbates global warming, gas-insulated switchgear has recently begun to use environmentally friendly gases such as nitrogen or dry compressed air to replace SF6. However, while these environmentally friendly gases meet insulation requirements, their heat dissipation capacity is far weaker than that of SF6. This leads to excessive temperature rise in the gas chamber of the gas-insulated switchgear due to the large amount of heat generated by the internally located electrical components and their poor heat dissipation efficiency. This can adversely affect the operation of the electrical components and even the entire gas-insulated switchgear.

[0004] Therefore, there is a demand in this field for heat dissipation boxes with high heat dissipation efficiency. Utility Model Content

[0005] The present invention aims to provide a heat dissipation box that can at least solve some of the above-mentioned problems.

[0006] This invention also aims to provide a gas-insulated switchgear that utilizes the aforementioned improved heat dissipation box.

[0007] According to one aspect of the present invention, a heat dissipation box for a gas-insulated switchgear is provided. The heat dissipation box includes: a box body having an internal mounting cavity and a heat dissipation opening communicating with the mounting cavity at its upper end; a heat dissipation component including a heat dissipation cylinder having a connecting opening at its lower end and a heat dissipation structure connected to the inner circumferential surface of the heat dissipation cylinder inside the heat dissipation cylinder, wherein the heat dissipation cylinder is sealed to the heat dissipation opening via the connecting opening to seal it to the box body; wherein the heat dissipation structure includes an annular member extending vertically and open at both the upper and lower ends, and a plurality of heat dissipation fins spaced circumferentially on the outer circumferential surface of the annular member, each heat dissipation fin extending downward from the annular member beyond the annular member and connected to the inner circumferential surface of the heat dissipation cylinder away from the end of the annular member.

[0008] Compared with the prior art, the heat dissipation box in this utility model can form thermal convection in the internal space connecting the heat dissipation box body and the heat dissipation component by installing the heat dissipation component above the heat dissipation box body. Furthermore, the annular part of the heat dissipation component and multiple heat dissipation fins on the outer periphery of the annular part are fixed to the inner circumferential surface of the heat dissipation cylinder. This can not only greatly increase the heat dissipation area of ​​the heat dissipation component, but also guide the hot airflow through the middle of the annular part and between adjacent heat dissipation fins in the vertical direction, thereby further improving the heat dissipation effect.

[0009] Preferably, the heat dissipation box further includes a plurality of first heat dissipation components distributed circumferentially at intervals on the outer peripheral surface of the heat dissipation cylinder, wherein the plurality of first heat dissipation components are arranged opposite to the plurality of heat dissipation fins.

[0010] Preferably, the upper end of the heat sink is configured as an installation opening that communicates with the connection opening of the heat sink.

[0011] Preferably, the heat dissipation box further includes a cover plate that is detachably connected to the mounting opening of the heat dissipation cylinder.

[0012] Preferably, the heat dissipation box further includes a plurality of second heat dissipation components detachably arranged on the upper side of the cover plate.

[0013] Preferably, the heat dissipation cylinder is designed in a cylindrical shape.

[0014] Preferably, the air box body, the heat dissipation cylinder, and the heat dissipation structure are all made of aluminum.

[0015] Preferably, the air box body includes: a first box body, which includes a receiving cylindrical section extending laterally and a supporting cylindrical section extending upward from the upper side of the receiving cylindrical section, the receiving cylindrical section being designed in a cylindrical shape; a second box body, which is constructed in a cylindrical shape extending vertically, the upper end of the second box body being open to form the heat dissipation opening that is sealed and connected to the heat dissipation component, and the lower end of the second box body being connected to the supporting cylindrical section to be arranged on the upper side of the first box body.

[0016] Preferably, a pair of support frames are provided on the lower side of the accommodating cylindrical section.

[0017] According to another aspect of the present invention, a gas-insulated switchgear is also provided, the gas-insulated switchgear including the aforementioned heat dissipation gas box.

[0018] Other features and advantages of this invention will partly be apparent to those skilled in the art upon reading this application, and partly will be described below in conjunction with the accompanying drawings in the detailed description. Attached Figure Description

[0019] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings, wherein:

[0020] Figure 1 This is a partial perspective view of a gas-insulated switchgear according to an embodiment of the present utility model;

[0021] Figure 2 This is a partial side view of a gas-insulated switchgear according to an embodiment of the present invention;

[0022] Figure 3 This is a first perspective view of a heat dissipation box according to an embodiment of the present utility model;

[0023] Figure 4 This is a second perspective view of the heat dissipation box according to an embodiment of the present utility model;

[0024] Figure 5 This is a three-dimensional schematic diagram of the heat dissipation structure of the heat dissipation box according to an embodiment of the present utility model;

[0025] Figure 6 This is an exploded view of the heat dissipation structure of the heat dissipation box according to an embodiment of the present utility model;

[0026] Figure 7 This is a side view of the heat dissipation structure of the heat dissipation box according to an embodiment of the present utility model;

[0027] Figure 8 It is along Figure 7 The first sectional view is taken by the cutting line AA in the diagram;

[0028] Figure 9 It is along Figure 7 The second sectional view is taken by the section line BB in the diagram.

[0029] Explanation of reference numerals in the attached figures:

[0030] 100-Gas-insulated switchgear; 10-Heat dissipation box; 11-Box body; 111-First enclosure; 1111-Housing cylinder section; 1112-Supporting cylinder section; 1113-Attaching cylinder section; 112-Second enclosure; 1122-Transversely extending cylinder section; 1123-Vertically extending cylinder section; 12-Heat dissipation component; 121-Heat dissipation cylinder; 1211-Connecting opening; 1212-Mounting opening; 122-Heat dissipation structure; 1221-Annular component; 1222-Heat dissipation fin; 1223-Inclined portion; 13-First heat dissipation component; 14-Cover plate; 15-Second heat dissipation component; 16-Support frame; 20-Switch frame. Detailed Implementation

[0031] Referring now to the accompanying drawings, a schematic representation of the gas-insulated switchgear and its heat dissipation chamber disclosed in this utility model is described in detail. Although the drawings are provided to illustrate some embodiments of this utility model, the drawings are not necessarily drawn to the dimensions of the specific embodiments, and certain features may be enlarged, removed, or partially cut to better illustrate and explain the disclosure of this utility model. Some components in the drawings may be repositioned according to actual needs without affecting the technical effect. The phrase "in the drawings" or similar terms appearing in the specification do not necessarily refer to all drawings or examples.

[0032] Certain directional terms used in the description of the accompanying drawings below, such as “inner,” “outer,” “above,” “below,” and other directional terms, will be understood to have their normal meaning and refer to those directions as normally viewed in the accompanying drawings. Unless otherwise specified, the directional terms used in this specification are generally in accordance with the conventional directions understood by those skilled in the art.

[0033] The terms “first,” “first,” “second,” “second,” and similar terms used in this utility model do not indicate any order, quantity, or importance, but are used to distinguish one component from other components.

[0034] The terms "joining", "connection" and similar terms used in this utility model include both indirect connection of two components with the aid of an intermediate layer such as an adhesive or welding agent or an intermediate component such as a connector or transition piece, and direct connection of two components without the aid of any intermediate layer such as an adhesive or welding agent or an intermediate component such as a connector or transition piece.

[0035] Figures 1 to 9 The present invention's gas-insulated switchgear 100 is illustrated by way of example. This example gas-insulated switchgear 100 may include a switch frame 20 and a heat dissipation box 10 disposed within the switch frame 20. The heat dissipation box 10 can accelerate the removal of heat generated by the electrical components during operation, thereby preventing overheating and performance degradation of the electrical components, thus improving the safety and reliability of the gas-insulated switchgear 100. It is understood that "vertical" as used herein refers to... Figure 2 The vertical direction is shown, and the horizontal direction is... Figure 2 The left and right directions shown, and the "vertical" direction is... Figure 2 The attached diagram shows the orientation of the page inside and outside.

[0036] Combination Figures 4 to 6 As shown, the heat dissipation box 10 may include a box body 11 and a heat dissipation component 12.

[0037] Specifically, the air box body 11 is generally designed to extend vertically, and its interior forms an installation cavity for arranging electrical components and filling with insulating gas such as environmentally friendly air. A heat dissipation opening communicating with the installation cavity may be provided at the upper end. A heat dissipation component 12 can be arranged at the heat dissipation opening of the air box body 11, thereby guiding the cold air inside the air box upwards to the heat dissipation component 12 to form thermal convection, thus improving the heat dissipation effect.

[0038] The heat dissipation component 12 may include a heat dissipation cylinder 121 and a heat dissipation structure 122. The heat dissipation cylinder 121 may be generally designed to extend vertically and have a connection opening 1211 at the lower end. The size and shape of the connection opening 1211 may be designed to fit the heat dissipation opening of the air box body 11, so that the heat dissipation opening of the air box body 11 can be sealed to the connection opening 1211 of the heat dissipation cylinder 121, thereby sealing the heat dissipation component 12 to the upper side of the air box body 11.

[0039] Combination Figure 1 and Figure 2 As shown, the internal space of the switch frame 20 can be designed to just accommodate the gas box body 11. The heat dissipation component 12 can be arranged on the upper side of the switch frame 20 and pass through the switch frame 20 to connect with the gas box body 11. This avoids occupying the internal space of the switch frame 20 to maximize the volume of the gas box body 11, and also keeps the structure of the gas-insulated switch cabinet 100 as compact as possible.

[0040] Furthermore, combined Figures 7 to 9 As shown, the heat dissipation structure 122 may include an annular member 1221 and multiple heat sinks 1222. The annular member 1221 may be designed as a vertically extending ring structure with open upper and lower ends, and may be generally arranged in the upper part of the heat dissipation cylinder 121. The multiple heat sinks 1222 may be distributed circumferentially at intervals on the outer circumferential surface of the annular member 1221, preferably evenly spaced circumferentially. For a single heat sink 1222, the upper end of the heat sink 1222 may be generally flush with the annular member 1221, and extend from top to bottom on the annular member 1221 beyond the annular member 1221, preferably extending into the lower part of the interior of the heat dissipation cylinder 121.

[0041] Therefore, by means of the ends of multiple heat sinks 1222 opposite to the annular member 1221 connected to the inner circumferential surface of the heat dissipation cylinder 121, the annular member 1221 can be connected to the inner side of the heat dissipation cylinder 121 via the multiple heat sinks 1222, for example, by welding to achieve a tight connection with the heat dissipation cylinder 121. This not only increases the heat dissipation area of ​​the heat dissipation component 12, but also forms multiple vertically extending air channels separated by the heat dissipation component 12 inside the heat dissipation cylinder 121, thereby further accelerating heat convection and improving the heat dissipation effect. Optionally, the lower end of the heat sink 1222 near the annular side is provided with an inclined portion 1223, which can facilitate the upward guidance of hot air through the heat dissipation component 12.

[0042] Preferably, the air box body 11, the heat dissipation cylinder 121 and the heat dissipation structure 122 can be made of aluminum. Compared with conventional stainless steel, aluminum has better heat dissipation performance, thus further improving the heat dissipation effect of the heat dissipation air box 10.

[0043] Optionally, in the illustrated embodiment, as Figures 6 to 9 As shown, the heat dissipation box 10 also includes a plurality of first heat dissipation components 13, such as heat dissipation fins. The plurality of first heat dissipation components 13 are distributed circumferentially at intervals on the outer peripheral surface of the heat dissipation cylinder 121, preferably evenly spaced circumferentially and tightly connected, for example, by welding, to the heat dissipation cylinder 121. The plurality of first heat dissipation components 13 on the outer side of the heat dissipation cylinder 121 are arranged opposite to the plurality of heat dissipation fins 1222 on the inner side of the heat dissipation cylinder 121, and each first heat dissipation component 13 extends vertically and its circumferential dimension is larger than the circumferential dimension of the corresponding heat dissipation fin 1222, thereby improving heat conduction and heat radiation from the inside of the heat dissipation box 10 to the external environment, and thus improving the heat dissipation effect of the heat dissipation box 10 of this invention.

[0044] Optionally, in the illustrated embodiment, as Figures 5 to 7 As shown, the heat sink 121 can be generally designed as a vertically extending cylindrical shape, preferably cast from aluminum. The upper end of the heat sink 121 can be designed as an installation opening 1212 for removable connection of the cover plate 14, which facilitates sealing of the heat sink 121 after the heat dissipation structure 122 is installed inside the heat sink 121. The installation opening 1212 of the heat sink 121 can communicate with the connection opening 1211 at the lower end of the heat sink 121 through the internal space of the heat sink 121, thereby guiding hot air in the air box to the upper side of the heat sink 121.

[0045] In addition, such as 6 to Figure 8 As shown, the diameter of the connection opening 1211 of the heat sink 121 can be smaller than the diameter of the mounting opening 1212, so as to ensure the sealed connection between the heat sink 121 and the air box body 11 through the smaller connection opening 1211. The larger mounting opening 1212 can provide sufficient mounting area for the second heat sink 15 on the cover plate 14, thereby effectively improving the heat dissipation effect.

[0046] Furthermore, in the illustrated embodiments, such as Figures 5 to 7 As shown, the heat dissipation chamber 10 may further include a plurality of second heat dissipation components 15, such as heat dissipation fins. The plurality of second heat dissipation components 15 are arranged on the upper side of the cover plate 14 to enhance heat conduction and heat radiation from the interior of the heat dissipation cylinder 121 through the cover plate 14 and the second heat dissipation components 15 to the external environment, thereby improving the heat dissipation effect of the heat dissipation chamber 10. Preferably, the second heat dissipation components 15 may be detachably arranged on the upper side of the cover plate 14, so that the user can increase or decrease the number of second heat dissipation components 15 as needed.

[0047] Optionally, in the illustrated embodiment, as Figures 1 to 4 As shown, the air box body 11 may include a first box 111 and a second box 112. Both the first box 111 and the second box 112 may be designed as cylindrical structures made of cast aluminum, which is not only easy to manufacture, but also improves the heat dissipation effect of the air box body 11 compared with conventional stainless steel materials.

[0048] The first housing 111 may include a laterally extending receiving cylindrical section 1111 and a support cylindrical section 1112 extending upward from the upper side of the receiving cylindrical section 1111. Both the receiving cylindrical section 1111 and the support cylindrical section 1112 may be designed in a cylindrical shape, and the support cylindrical section 1112 may smoothly transition into and communicate with the receiving cylindrical section 1111. The second housing 112 may be generally constructed as a vertically extending cylindrical shape, and its diameter may be smaller than the diameter of the receiving cylindrical section 1111 to accommodate the internal space structure of the switch frame 20 and allow the user to arrange components as needed inside the second housing 112 and the receiving cylindrical section 1111.

[0049] The upper end of the support cylinder section 1112 of the first housing 111 is connected to the lower end of the second housing 112, so that the second housing 112 is connected to the first housing 111 and supported by the first housing 111. The upper end of the second housing 112 is designed as the aforementioned heat dissipation opening, so as to be sealed to the heat dissipation component 12 above the second housing 112, thereby extending the vertical heat convection path to improve the heat dissipation effect.

[0050] Optionally, in the illustrated embodiment, as Figures 1 to 4 As shown, the heat dissipation box 10 may also include a support frame 16, which may be arranged on the lower side of both axial ends of the housing cylindrical section 1111, so as to securely install the heat dissipation box 10 into the switch frame 20.

[0051] In addition, the lower side of the accommodating cylindrical section 1111 is provided with an attachment cylindrical section 1113 that extends downward and smoothly transitions with the accommodating cylindrical section 1111. The outer periphery of the second housing 112 may be provided with a transversely extending cylindrical section 1122 that extends outward in the lateral direction and a longitudinally extending cylindrical section 1123 that extends outward in the longitudinal direction. Both the transversely extending cylindrical section 1122 and the longitudinally extending cylindrical section 1123 smoothly transition with the second housing 112 and communicate with its interior, thereby ensuring sufficient installation space inside the gas box body 11. Furthermore, the axial ends of the accommodating cylindrical section 1111, the axial ends of the attachment cylindrical section 1113 away from the accommodating cylindrical section 1111, the axial ends of the transversely extending cylindrical section 1122, and the axial ends of the longitudinally extending cylindrical section 1123 can all be designed as connection ends for connecting and cooperating with other electrical or mechanical components within the switch frame 20.

[0052] It should be understood that although this specification is described according to various embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0053] The above description is merely an illustrative embodiment of this utility model and is not intended to limit the scope of this utility model. Any equivalent changes, modifications, and combinations made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model.

Claims

1. A heat dissipation gas tank for a gas insulated switchgear, characterized by, The heat dissipation air tank (10) comprises: an air tank body (11) internally provided with a mounting cavity and an upper end provided with a heat dissipation opening in communication with the mounting cavity; a heat dissipation component (12) comprising a heat dissipation cylinder (121) provided at a lower end with a connecting opening (1211) and a heat dissipation structure (122) connected to an inner circumferential surface of the heat dissipation cylinder (121) internally in the heat dissipation cylinder (121), the heat dissipation cylinder (121) being sealingly connected to the heat dissipation opening via the connecting opening (1211) to be sealingly connected to the air tank body (11); wherein the heat dissipation structure (122) comprises an annular member (1221) extending vertically and open at upper and lower ends and a plurality of heat dissipation fins (1222) spaced apart in a circumferential direction on an outer circumferential surface of the annular member (1221), each heat dissipation fin (1222) extending downward from the annular member (1221) to beyond the annular member (1221) and connected to the inner circumferential surface of the heat dissipation cylinder (121) at an end away from the annular member (1221).

2. The heat dissipation gas box for a gas insulated switchgear according to claim 1, characterized in that, The heat dissipation air tank (10) further comprises a plurality of first heat dissipation members (13) spaced apart in a circumferential direction on an outer circumferential surface of the heat dissipation cylinder (121), the plurality of first heat dissipation members (13) being arranged one by one opposite to the plurality of heat dissipation fins (1222).

3. The heat-dissipating gas tank for a gas insulated switchgear according to claim 1 or 2, characterized in that, An upper end of the heat dissipation cylinder (121) is configured as a mounting opening (1212) in communication with the connecting opening (1211) of the heat dissipation cylinder (121).

4. The heat-dissipating gas box for a gas insulated switchgear according to claim 3, characterized in that, The heat dissipation air tank (10) further comprises a cover plate (14) detachably connected to the mounting opening (1212) of the heat dissipation cylinder (121).

5. The heat-dissipating gas box for a gas insulated switchgear according to claim 4, characterized in that, The heat dissipation air tank (10) further comprises a plurality of second heat dissipation members (15) detachably arranged on an upper side of the cover plate (14).

6. The heat-dissipating gas box for a gas insulated switchgear according to claim 1 or 2, characterized in that, The heat dissipation cylinder (121) is designed in a cylindrical shape.

7. The heat-dissipating gas box for a gas insulated switchgear according to claim 1 or 2, characterized in that, The air tank body (11), the heat dissipation cylinder (121) and the heat dissipation structure (122) are all made of aluminum.

8. The heat-dissipating gas box for a gas insulated switchgear according to claim 1, characterized in that, The air tank body (11) comprises: a first tank body (111) comprising a containing cylinder segment (1111) extending in a transverse direction and a support cylinder segment (1112) extending upward from an upper side of the containing cylinder segment (1111), the containing cylinder segment (1111) being designed in a cylindrical shape; a second tank body (112) configured in a cylindrical shape extending in a vertical direction, an upper end of the second tank body (112) being open designed to form the heat dissipation opening sealingly connected to the heat dissipation component (12), a lower end of the second tank body (112) being connected to the support cylinder segment (1112) to be arranged on the upper side of the first tank body (111).

9. The heat-dissipating gas box for a gas insulated switchgear according to claim 8, characterized in that, A lower side of the containing cylinder segment (1111) is provided with a pair of support frames (16).

10. A gas insulated switchgear (100), characterized in that, The gas insulated switchgear (100) comprises the heat dissipation air tank (10) according to any one of claims 1 to 9.

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