Gas-insulated switchgear

Abstract

The utility model belongs to the technical field of high-voltage switch equipment, and discloses an inflatable cabinet. The gas-insulated switchgear comprises a bus chamber and a circuit breaker chamber, the circuit breaker chamber is arranged below the bus chamber, the width of the bus chamber is larger than that of the circuit breaker chamber in the width direction of the gas-insulated switchgear, and at least one side of the circuit breaker chamber is provided with a first heat dissipation piece. According to the gas-insulated switchgear, the arrangement of the first heat dissipation piece on the circuit breaker chamber can be facilitated, so that the layout of the first heat dissipation piece is reasonable, and the structure compactness of the whole gas-insulated switchgear is relatively good.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage switchgear, in particular to a gas-insulated switchgear (GIS). Background Art

[0002] The gas-insulated switchgear (GIS) is also known as indoor AC high-voltage gas-insulated metal-enclosed switchgear, which is a new generation of switchgear. Due to the characteristics of compact structure, flexible operation, reliable interlock, etc. of the gas-insulated switchgear (GIS), satisfactory technical solutions can be provided for various different application scenarios (especially in harsh environments) and different user requirements.

[0003] However, since the width of the area where the main busbar of the gas tank in the current gas-insulated switchgear (GIS) is located is the same as the width of the rest of the gas tank, it is not conducive to arranging heat dissipation components on the rest of the gas tank, resulting in an unreasonable layout of the heat dissipation components and making the structure of the entire gas tank and gas-insulated switchgear (GIS) not compact enough.

[0004] Therefore, there is an urgent need for a gas-insulated switchgear (GIS) to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a gas-insulated switchgear (GIS) which is conducive to the arrangement of the first heat dissipation component on the circuit breaker chamber, making the layout of the first heat dissipation component reasonable and ensuring better compactness of the entire gas-insulated switchgear (GIS).

[0006] To achieve the above object, the utility model adopts the following technical solutions:

[0007] A gas-insulated switchgear (GIS) includes:

[0008] A busbar chamber;

[0009] A circuit breaker chamber, arranged below the busbar chamber. In the width direction of the gas-insulated switchgear (GIS), the width of the busbar chamber is greater than the width of the circuit breaker chamber, and at least one side of the circuit breaker chamber is provided with a first heat dissipation component.

[0010] As an optional solution, in the width direction of the gas-insulated switchgear (GIS), the width of the area where the main busbar in the busbar chamber is located is greater than the width of the rest of the area.

[0011] As an optional solution, in the width direction of the gas-insulated switchgear (GIS), the width of the rest of the area in the busbar chamber except the area where the main busbar is located is equal to the width of the circuit breaker chamber.

[0012] As an optional solution, in the width direction of the gas-insulated switchgear (GIS), at least one side of the rest of the area in the busbar chamber is provided with the first heat dissipation component.

[0013] As an optional solution, the gas-insulated switchgear (GIS) further includes:

[0014] The fan chamber is provided at the top of the busbar chamber. A second heat dissipation member is covered inside the fan chamber, and at least one first fan is installed at the top of the fan chamber. The first fan is used to discharge the gas in the fan chamber from bottom to top.

[0015] As an alternative, the gas-insulated switchgear further includes:

[0016] The incoming line chamber is provided on one side of the busbar chamber. A third heat dissipation member is covered inside the incoming line chamber. The incoming line chamber is located on one side of the fan chamber and is communicated with the fan chamber. At least one second fan is installed at the top of the incoming line chamber. The second fan is used to discharge the gas in the incoming line chamber from bottom to top.

[0017] As an alternative, the gas-insulated switchgear further includes:

[0018] The pressure relief chamber is provided on one side of the circuit breaker chamber and below the incoming line chamber. The pressure relief chamber is communicated with the incoming line chamber. A fourth heat dissipation member and a third fan are respectively provided in the pressure relief chamber. The third fan is used to discharge the gas in the pressure relief chamber from bottom to top into the incoming line chamber.

[0019] As an alternative, the gas-insulated switchgear further includes:

[0020] The instrument chamber is provided on the other side of the busbar chamber. The fan chamber is located between the instrument chamber and the incoming line chamber, and the instrument chamber is communicated with the fan chamber.

[0021] As an alternative, the gas-insulated switchgear further includes:

[0022] The cable chamber, the circuit breaker chamber is located above the cable chamber. At least one inner side wall of the cable chamber is provided with a fourth fan. The fourth fan is used to discharge the gas in the cable chamber from bottom to top to the first heat dissipation member.

[0023] As an alternative, a ventilation plate is connected to the top of the cable chamber. Through holes matching the first heat dissipation member are provided on the ventilation plate.

[0024] Advantageous effects:

[0025] For the gas-insulated switchgear proposed by the present utility model, in the width direction of the gas-insulated switchgear, the width of the busbar chamber is made larger than the width of the circuit breaker chamber, so as to be able to reduce the width of the circuit breaker chamber while meeting the installation width requirements of the main busbar in the busbar chamber, which is beneficial to the layout of the first heat dissipation member on the circuit breaker chamber, making the layout of the first heat dissipation member reasonable and ensuring better structural compactness of the entire gas-insulated switchgear. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the structural schematic diagram of the gas-insulated switchgear provided in the present utility model Figure 1;

[0027] Figure 2 is the structural schematic diagram of the gas-insulated switchgear (excluding some structures) provided in the present utility model Figure 2 ;

[0028] Figure 3 is the side view of the busbar chamber and the circuit breaker chamber (without the first heat dissipation member) provided in the present utility model;

[0029] Figure 4 is the structural schematic diagram of the fan chamber provided in the present utility model;

[0030] Figure 5 is the structural schematic diagram of the busbar chamber and the circuit breaker chamber from one perspective provided in the present utility model;

[0031] Figure 6 is the structural schematic diagram of the busbar chamber and the circuit breaker chamber from another perspective provided in the present utility model;

[0032] Figure 7 is the structural schematic diagram of the incoming line chamber provided in the present utility model;

[0033] Figure 8 is the structural schematic diagram of the pressure relief chamber provided in the present utility model;

[0034] Figure 9 is the structural schematic diagram of the first sub-chamber provided in the present utility model;

[0035] Figure 10 is the structural schematic diagram of the cable chamber provided in the present utility model;

[0036] Figure 11 is the top view of the cable chamber provided in the present utility model;

[0037] Figure 12 is Figure 2 the partial enlarged structural schematic diagram at position B in

[0038] In the figure:

[0039] 1. Busbar chamber; 11. First side plate;

[0040] 2. Circuit breaker chamber; 21. Second side plate; 22. Third side plate; 23. Step side plate; 24. Step bottom plate;

[0041] 3. Fan chamber; 31. First fan;

[0042] 4. Incoming line chamber; 41. Second fan; 42. First mesh plate;

[0043] 5. Pressure relief chamber; 51. Third fan; 52. First air inlet;

[0044] 6. Instrument room; 61. First sub-room; 62. Second sub-room; 63. Second mesh plate; 64. First operating mechanism; 65. Second operating mechanism;

[0045] 7. Cable room; 71. Fourth fan; 72. Reinforcing beam; 73. Through hole; 74. Ventilation plate;

[0046] 81. First heat dissipation component; 82. Second heat dissipation component; 83. Third heat dissipation component; 84. Fourth heat dissipation component;

[0047] A - Width direction of the gas - filled cabinet. Detailed implementation manners

[0048] The following further elaborates on the present utility model in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the sake of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0049] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above - mentioned terms in the present utility model can be understood according to specific circumstances.

[0050] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the horizontal height of the first feature is lower than that of the second feature.

[0051] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "left", and "right" are based on the orientation or positional relationships shown in the drawings. These are only for convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0052] In this embodiment, an inflatable cabinet is proposed. The inflatable cabinet has good structural compactness and good heat dissipation effect, so that the heat dissipation efficiency of the inflatable cabinet is relatively high. Among them, the working principle of the inflatable cabinet can refer to the working principle of common inflatable cabinets in the prior art. In this embodiment, the layout settings of each heat dissipation component of the inflatable cabinet are mainly improved and described, and the working principle of the inflatable cabinet will not be specifically described.

[0053] Specifically, as Figures 1 to 3 shown, the inflatable cabinet includes a busbar chamber 1 and a circuit breaker chamber 2. The busbar chamber 1 is arranged above the circuit breaker chamber 2; in the width direction of the inflatable cabinet, the width of the busbar chamber 1 is greater than that of the circuit breaker chamber 2, and a first heat dissipation component 81 is arranged on at least one side of the circuit breaker chamber 2. Among them, the width direction of the inflatable cabinet is specifically as Figure 1 shown by the arrow A in

[0054] Compared with the prior art, in this embodiment of the inflatable cabinet, by making the width of the busbar chamber 1 greater than that of the circuit breaker chamber 2 in the width direction of the inflatable cabinet, it is possible to reduce the width of the circuit breaker chamber 2 while meeting the installation width requirements of the main busbar in the busbar chamber 1, which is beneficial to the arrangement of the first heat dissipation component 81 on the circuit breaker chamber 2, making the layout of the first heat dissipation component 81 reasonable and ensuring good structural compactness of the entire inflatable cabinet.

[0055] Furthermore, as Figures 1 to 3 shown, in the width direction of the inflatable cabinet, the width of the area where the main busbar in the busbar chamber 1 is located is greater than that of the remaining areas, so as to reduce the width of the remaining areas in the busbar chamber 1 while meeting the installation width requirements of the main busbar in the busbar chamber 1, and ensure good structural compactness of the busbar chamber 1 and the entire inflatable cabinet.

[0056] Specifically, in this embodiment, as Figures 1 to 3 shown, in the width direction of the inflatable cabinet, the width of the remaining areas in the busbar chamber 1 except the area where the main busbar is located is equal to the width of the circuit breaker chamber 2, ensuring better structural compactness and aesthetic appearance of the busbar chamber 1 and the circuit breaker chamber 2.

[0057] Furthermore, as Figures 1 to 3As shown in the figure, in the width direction of the gas-insulated switchgear, a first heat dissipating member 81 is provided on at least one side of the remaining area in the busbar chamber 1, which is conducive to the arrangement of the first heat dissipating member 81 on the busbar chamber 1, making the layout of the first heat dissipating member 81 reasonable and ensuring better structural compactness of the entire gas-insulated switchgear.

[0058] It should be noted that, in the width direction of the gas-insulated switchgear, since the width dimension of the main busbar in the busbar chamber 1 is fixed, the width of the area where the main busbar in the busbar chamber 1 is located remains fixed. That is to say, only the width of the remaining area in the busbar chamber 1 except the area where the main busbar is located and the width of the circuit breaker chamber 2 can be adjusted to improve the structural compactness of the gas-insulated switchgear; and the busbar chamber 1 and the circuit breaker chamber 2 are formed as independent compartments by partitions.

[0059] Specifically, as Figure 3 shown, the gas-insulated switchgear further includes two first side plates 11 and two second side plates 21; among them, the two relatively arranged first side plates 11 are located in the area where the main busbar in the busbar chamber 1 is located; first heat dissipating members 81 are respectively arranged on the two relatively arranged second side plates 21. That is to say, a part of the second side plate 21 is located in the remaining area in the busbar chamber 1 except the area where the main busbar is located, and the remaining part of the second side plate 21 is located in the circuit breaker chamber 2, that is, the distance between the two relatively arranged first side plates 11 is greater than the distance between the two relatively arranged second side plates 21.

[0060] Furthermore, as Figure 1 and Figure 2 shown, after the first heat dissipating member 81 is installed on the second side plate 21, the outer side surface of the busbar chamber 1 is flush with the outer side surface of the first heat dissipating member 81. That is to say, the first side plate 11 is flush with the first heat dissipating member 81, so that the appearance of the entire gas-insulated switchgear can be more beautiful and the compactness can be better. Specifically, as Figures 1 to 6 shown, the gas-insulated switchgear further includes a fan chamber 3. The fan chamber 3 is arranged at the top of the busbar chamber 1. A second heat dissipating member 82 is covered in the fan chamber 3, and at least one first fan 31 is installed at the top of the fan chamber 3. The first fan 31 is used to exhaust the gas in the fan chamber 3 from bottom to top, so as to take the heat of the second heat dissipating member 82 out of the fan chamber 3 through the gas in the fan chamber 3 to reduce the heat of the second heat dissipating member 82 and ensure the heat dissipation effect of the second heat dissipating member 82 on the busbar chamber 1. In this embodiment, the first fan 31 is specifically an axial flow fan.

[0061] As Figure 5 and Figure 6As shown in the figure, by providing a second heat dissipation member 82 at the top of the busbar chamber 1, the heat inside the busbar chamber 1 can be dissipated through the second heat dissipation member 82; and a fan chamber 3 is provided at the top of the busbar chamber 1 such that the second heat dissipation member 82 is located inside the fan chamber 3; meanwhile, at least one first fan 31 is installed at the top of the fan chamber 3 to discharge the gas inside the fan chamber 3 from bottom to top through the first fan 31, so that the heat of the second heat dissipation member 82 can be discharged outside the fan chamber 3 through the first fan 31, enabling the second heat dissipation member 82 to have a better heat dissipation effect on the busbar chamber 1, thus ensuring the heat dissipation effect on the busbar chamber 1 and making the heat dissipation effect of the gas-insulated switchgear with a rated current reaching 3150A and above current levels better.

[0062] It should be noted that the second heat dissipation member 82 in this embodiment is used to dissipate the heat inside the busbar chamber 1, and at the same time, the first fan 31 discharges the heat on the second heat dissipation member 82. That is to say, through the coordinated use of the second heat dissipation member 82 and the first fan 31, the heat dissipation effects on both the inner and outer sides of the busbar chamber 1 can be ensured simultaneously, thereby ensuring the heat dissipation efficiency of the busbar chamber 1; and since the first fan 31 can discharge the gas inside the fan chamber 3 from bottom to top, the first fan 31 can discharge the heat at the entire top of the busbar chamber 1, thus ensuring a better heat dissipation effect on the busbar chamber 1.

[0063] Since the heat dissipation effect of the gas-insulated switchgear in this embodiment is good, therefore, the gas-insulated switchgear in this embodiment can specifically be a 40.5kV high-current gas-insulated switchgear, enabling the gas-insulated switchgear to be applicable to the application scenarios of high-current gas-insulated metal-enclosed switches.

[0064] And, as Figure 2 and Figure 4 shown in the figure, by installing at least one first fan 31 at the top of the fan chamber 3, the gas inside the fan chamber 3 can be discharged better through the function of simultaneously delivering wind energy by multiple first fans 31, further ensuring the heat dissipation effect on the busbar chamber 1. In this embodiment, three first fans 31 are installed at the top of the fan chamber 3, and the three first fans 31 are arranged in a straight line. Here, the specific number of the first fans 31 is not limited.

[0065] Furthermore, as Figure 2 、 Figure 5 and Figure 6As shown, at least one second heat sink 82 is provided at the top of the busbar chamber 1, so that the heat in the busbar chamber 1 can be discharged simultaneously through multiple second heat sinks 82, further ensuring a better heat dissipation effect on the busbar chamber 1; and, in order to ensure a better heat dissipation effect on the busbar chamber 1, a first inner heat sink is provided at a position corresponding to the second heat sink 82 in the busbar chamber 1, and the structure of the first inner heat sink is basically the same as that of the second heat sink 82. In this embodiment, two second heat sinks 82 are provided at the top of the busbar chamber 1, and the two second heat sinks 82 are arranged at intervals; correspondingly, two first inner heat sinks are also provided. Here, the specific number of the second heat sink 82 and the first inner heat sink is not limited.

[0066] Specifically, the second heat sink 82 includes a plurality of heat sinks arranged in sequence at intervals, that is, there is a small gap between two adjacent heat sinks. When the first fan 31 discharges the gas in the fan chamber 3, there is sufficient gas flow on each heat sink and in the gap between two adjacent heat sinks, so as to ensure more efficient air-cooling of the second heat sink 82.

[0067] Furthermore, if Figures 1 to 7 As shown, a third heat sink 83 is provided on the step side plate 23 of the busbar chamber 1; the inflatable cabinet also includes an incoming line chamber 4, which is provided on one side of the busbar chamber 1, that is, the incoming line chamber 4 is provided on the step bottom plate 24 of the circuit breaker chamber 2 and abuts against the step side plate 23, and the inner cover of the incoming line chamber 4 is provided with the above-mentioned third heat sink 83, and the incoming line chamber 4 is located on one side of the fan chamber 3 and is connected to the fan chamber 3; at least one second fan 41 is installed at the top of the incoming line chamber 4, and the second fan 41 is used to discharge the gas in the incoming line chamber 4 from bottom to top. Among them, the step side plate 23 and the step bottom plate 24 are arranged adjacent to each other to form a step surface, and the incoming line chamber 4 is located on the step surface. In this embodiment, the second fan 41 is specifically an axial flow fan.

[0068] A third heat sink 83 is provided on one side of the busbar chamber 1 so as to export the heat in the busbar chamber 1 through the third heat sink 83; and the gas in the incoming line chamber 4 is discharged from bottom to top through the second fan 41, so that the heat of the third heat sink 83 can be discharged to the outside of the incoming line chamber 4 through the second fan 41, so that the third heat sink 83 has a better heat dissipation effect on the busbar chamber 1, thereby being able to better ensure the heat dissipation effect on the busbar chamber 1.

[0069] It should be noted that the third heat dissipation member 83 in this embodiment is used to export the heat in the busbar chamber 1, and at the same time, the second fan 41 discharges the heat on the third heat dissipation member 83. That is to say, through the cooperation of the third heat dissipation member 83 and the second fan 41, the heat dissipation effects on the inner and outer sides of the busbar chamber 1 can be ensured simultaneously; moreover, since the second fan 41 can discharge the gas in the incoming line chamber 4 from bottom to top, the second fan 41 can discharge the heat at the entire stepped side plate 23 of the busbar chamber 1, so as to ensure a better heat dissipation effect for the busbar chamber 1; at the same time, by discharging the gas in the incoming line chamber 4 from bottom to top through the second fan 41, the incoming line chamber 4 itself can be cooled, ensuring a lower temperature in the incoming line chamber 4, so that the heat dissipation effect of the entire gas-insulated switchgear is better.

[0070] Moreover, as Figure 2 and Figure 7 shown, by installing at least one second fan 41 at the top of the incoming line chamber 4, the gas in the incoming line chamber 4 can be better discharged through the simultaneous wind energy transmission of multiple second fans 41, further ensuring the heat dissipation effect on the busbar chamber 1. In this embodiment, two second fans 41 are installed at the top of the incoming line chamber 4, and the two second fans 41 are arranged at intervals in a straight line. Here, the specific number of the second fans 41 is not limited.

[0071] Furthermore, as Figure 6 shown, at least one third heat dissipation member 83 is provided on the stepped side plate 23, so that the heat in the busbar chamber 1 can be discharged simultaneously through multiple third heat dissipation members 83, further ensuring a better heat dissipation effect on the busbar chamber 1. In this embodiment, six third heat dissipation members 83 are provided on the stepped side plate 23, and the six third heat dissipation members 83 are arranged at intervals in an array. Here, the specific number of the third heat dissipation members 83 is not limited.

[0072] Specifically, as Figure 6 shown, the structure of the third heat dissipation member 83 is basically the same as that of the second heat dissipation member 82. That is to say, the third heat dissipation member 83 also includes a plurality of heat dissipation fins arranged at intervals in sequence. Here, the third heat dissipation member 83 will not be described in detail, and reference can be made to the above description of the second heat dissipation member 82.

[0073] Specifically, as Figure 2 and Figure 7 shown, a first mesh plate 42 is provided on the side of the incoming line chamber 4 close to the fan chamber 3. The first mesh plate 42 is used to connect the incoming line chamber 4 and the fan chamber 3, so that the gas in the incoming line chamber 4 can flow through the first mesh plate 42 to the fan chamber 3 and be discharged through the first fan 31, making the heat dissipation effect in the incoming line chamber 4 better.

[0074] Furthermore, as Figure 1 、 Figure 2 andFigure 6 As shown, a fourth heat sink 84 is provided on the third side plate 22 of the circuit breaker chamber 2. The third side plate 22 is respectively arranged adjacent to the step bottom plate 24 and the second side plate 21. The third side plate 22 is located on one side of the step bottom plate 24 and is arranged below the step side plate 23.

[0075] Specifically, Figure 2 and Figure 8 As shown, the inflatable cabinet further includes a pressure relief chamber 5, which is arranged on one side of the circuit breaker chamber 2 and below the incoming line chamber 4, that is, the pressure relief chamber 5 is arranged on the third side plate 22, and the pressure relief chamber 5 is connected to the incoming line chamber 4; and the fourth heat sink 84 and the third fan 51 are respectively arranged in the pressure relief chamber 5, and the third fan 51 is used to discharge the gas in the pressure relief chamber 5 from bottom to top into the incoming line chamber 4. In this embodiment, the third fan 51 is specifically a cross-flow fan.

[0076] The heat in the circuit breaker chamber 2 is conducted out through the fourth heat sink 84, and the gas in the pressure relief chamber 5 is discharged from bottom to top into the incoming line chamber 4 through the third fan 51, so as to dissipate the heat on the fourth heat sink 84 into the incoming line chamber 4, so that the fourth heat sink 84 has a better heat dissipation effect on the circuit breaker chamber 2, thereby better ensuring the heat dissipation effect on the circuit breaker chamber 2. Among them, the fourth heat sink 84 has a substantially same structure as the second heat sink 82 described above.

[0077] It is worth noting that the fourth heat sink 84 in this embodiment is used to export the heat in the circuit breaker chamber 2, and at the same time, the third fan 51 blows away the heat on the fourth heat sink 84, that is, through the fourth heat sink 84 and the third fan 51 used in conjunction with each other, the heat dissipation effect on the inside and outside of the circuit breaker chamber 2 can be guaranteed at the same time, thereby ensuring the heat dissipation efficiency of the circuit breaker chamber 2; and, since the third fan 51 can discharge the gas in the pressure relief chamber 5 from bottom to top into the incoming line chamber 4, the third fan 51 can discharge the heat from the entire third side plate 22 of the circuit breaker chamber 2, thereby ensuring a better heat dissipation effect for the circuit breaker chamber 2; at the same time, the gas in the pressure relief chamber 5 is discharged from the bottom to top by the third fan 51, so that the pressure relief chamber 5 itself can be cooled, ensuring that the temperature in the pressure relief chamber 5 is low, thereby making the heat dissipation effect of the entire inflatable cabinet better.

[0078] And, if Figure 2 and Figure 8 As shown, by arranging at least one third fan 51 in the pressure relief chamber 5, the gas in the pressure relief chamber 5 can be better discharged into the incoming line chamber 4 by the effect of simultaneously transmitting wind energy by multiple third fans 51, so as to further ensure the heat dissipation effect of the circuit breaker chamber 2. In this embodiment, a third fan 51 is arranged at the middle position of the pressure relief chamber 5. Here, the specific number of the third fans 51 is not limited.

[0079] Further, as shown in Figure 2 and Figure 6 , at least one fourth heat dissipation member 84 is provided on the third side plate 22, so as to be able to discharge the heat in the circuit breaker chamber 2 through a plurality of fourth heat dissipation members 84 simultaneously, further ensuring better heat dissipation effect for the circuit breaker chamber 2.

[0080] It should be noted that, in order to ensure better heat dissipation effect for the circuit breaker chamber 2, a second inner heat dissipation member is provided at a position corresponding to the fourth heat dissipation member 84 in the circuit breaker chamber 2, and the structure of the second inner heat dissipation member is basically the same as that of the second heat dissipation member 82. In this embodiment, as shown in Figure 2 and Figure 6 , two fourth heat dissipation members 84 are provided on the third side plate 22 of the circuit breaker chamber 2, and the two fourth heat dissipation members 84 are arranged at intervals; correspondingly, two second inner heat dissipation members are provided. Here, the specific number of the fourth heat dissipation members 84 and the second inner heat dissipation members is not limited.

[0081] Further, as shown in Figure 2 and Figure 8 , a first air inlet 52 is provided at the bottom end surface of the pressure relief chamber 5, so that the third fan 51 can suck gas into the pressure relief chamber 5 through the first air inlet 52, so that the sucked gas can flow into the incoming line chamber 4.

[0082] Further, as shown in Figure 1 and Figure 2 , the gas-insulated switchgear further includes an instrument chamber 6, the instrument chamber 6 is arranged on the other side of the busbar chamber 1 and is opposite to the incoming line chamber 4, that is, the fan chamber 3 is located between the incoming line chamber 4 and the instrument chamber 6, and the instrument chamber 6 is communicated with the fan chamber 3.

[0083] Specifically, as shown in Figure 2 and Figure 9 , a second net plate 63 is provided on the side of the instrument chamber 6 close to the fan chamber 3, and the second net plate 63 is used to communicate the instrument chamber 6 with the fan chamber 3, so that the gas in the instrument chamber 6 can flow into the fan chamber 3 through the second net plate 63 and be discharged through the first fan 31, so that the heat dissipation effect in the instrument chamber 6 is better.

[0084] Specifically, as shown in Figure 1 and Figure 9As shown, the instrument room 6 includes a first sub-room 61 and a second sub-room 62 that are connected and communicate with each other. The first sub-room 61 is stacked on the second sub-room 62. The bottom end surface of the second sub-room 62 is flush with the bottom end surface of the circuit breaker room 2. A second net plate 63 is arranged on one side of the first sub-room 61 close to the fan room 3. And a first operating mechanism 64 for operating a direct-acting three-position switch and a second operating mechanism 65 for operating a circuit breaker are covered in the second sub-room 62. Among them, the first operating mechanism 64 and the first operating mechanism 65 are common structures in existing gas-insulated switchgear, and their specific structures and working principles will not be described in detail here.

[0085] Furthermore, as Figure 1 and Figure 2 、 Figure 10 and Figure 11 shown, the gas-insulated switchgear further includes a cable room 7. The circuit breaker room 2 is located above the cable room 7. The second sub-room 62 is located above the cable room 7. The second sub-room 62 is connected and communicates with the cable room 7. And the lower part of the pressure relief room 5 abuts against one side of the cable room 7. A fourth fan 71 is arranged on at least one inner side wall of the cable room 7. The fourth fan 71 is used to discharge the gas in the cable room 7 from bottom to top to a first heat dissipation member 81 to blow away the heat on the first heat dissipation member 81. In this embodiment, the fourth fan 71 is specifically a cross-flow fan.

[0086] By discharging the gas in the cable room 7 from bottom to top to the first heat dissipation member 81 through the fourth fan 71 to blow away the heat on the first heat dissipation member 81, the heat on the first heat dissipation member 81 can be dissipated through the fourth fan 71, so that the first heat dissipation member 81 has a better heat dissipation effect on the busbar room 1 and the circuit breaker room 2.

[0087] It should be noted that the first heat dissipation member 81 in this embodiment is used to export the heat in the busbar room 1 and the circuit breaker room 2, and at the same time, the fourth fan 71 blows away the heat on the first heat dissipation member 81. That is to say, through the first heat dissipation member 81 and the fourth fan 71 used in cooperation, the heat dissipation effects on the inner and outer sides of the busbar room 1 and the circuit breaker room 2 can be ensured at the same time, so that the heat dissipation efficiency of the busbar room 1 and the circuit breaker room 2 can be ensured; and because the fourth fan 71 can discharge the gas in the cable room 7 from bottom to top to the first heat dissipation member 81, the fourth fan 71 can discharge the heat of the entire second side plate 21 of the busbar room 1 and the circuit breaker room 2, so that the heat dissipation effect on the busbar room 1 and the circuit breaker room 2 can be better ensured; at the same time, by discharging the gas in the cable room 7 from bottom to top through the fourth fan 71, the cable room 7 itself can be cooled, ensuring that the temperature in the cable room 7 is relatively low, so that the heat dissipation effect of the entire gas-insulated switchgear is better.

[0088] And, as Figure 2 、 Figure 10 and Figure 11As shown, by providing a fourth fan 71 on at least one inner wall of the cable chamber 7, the gas in the cable chamber 7 can be better discharged to the first heat sink 81 by the simultaneous delivery of wind energy by multiple fourth fans 71, further ensuring the heat dissipation effect of the busbar chamber 1 and the circuit breaker chamber 2. In this embodiment, fourth fans 71 are respectively provided on two opposite inner walls of the cable chamber 7. Here, the specific number of the fourth fans 71 is not limited.

[0089] Furthermore, as Figure 5 and Figure 6 shown, at least one first heat sink 81 is provided on each second side plate 21, so that the heat in the busbar chamber 1 and the circuit breaker chamber 2 can be discharged simultaneously by multiple first heat sinks 81, further ensuring a better heat dissipation effect for the busbar chamber 1 and the circuit breaker chamber 2. In this embodiment, eleven first heat sinks 81 are provided on each second side plate 21, and the eleven first heat sinks 81 are arranged at intervals in an array. Here, the specific number of the first heat sinks 81 is not limited.

[0090] Furthermore, as Figure 2 、 Figure 10 and Figure 12 shown, a ventilation plate 74 is connected to the top end of the cable chamber 7, and through holes 73 matching the first heat sinks 81 are provided on the ventilation plate 74; when the circuit breaker chamber 2 is arranged on the cable chamber 7, the through holes 73 are aligned with the first heat sinks 81, so that the gas in the cable chamber 7 can be discharged to the first heat sinks 81 through the through holes 73, thereby realizing the heat dissipation of the first heat sinks 81. Among them, the structure of the first heat sink 81 is basically the same as that of the above-mentioned second heat sink 82. Here, the specific number of the through holes 73 is not limited, as long as it corresponds to the heat dissipation fins in the first heat sink 81.

[0091] Specifically, as Figure 12 shown, there is a gap between the bottom end of the through hole 73 and the first heat sink 81, so that the gas in the through hole 73 can flow to the first heat sink 81 through the gap between the through hole 73 and the bottom end of the first heat sink 81, ensuring that the gas can flow smoothly to the first heat sink 81 and avoiding the accumulation of gas between the through hole 73 and the first heat sink 81.

[0092] Furthermore, a second air inlet and a third air inlet are respectively provided on the bottom end face and the side face of the cable chamber 7, so that the fourth fan 71 can respectively suck gas into the cable chamber 7 through the second air inlet and the third air inlet, so that the sucked gas can flow to the first heat sink 81.

[0093] Specifically, as Figure 10As shown, a plurality of reinforcing beams 72 for enhancing the structural strength are provided on the cable chamber 7, and brackets are installed on the inner side wall of the cable chamber 7, and the fourth fan 71 is installed on the brackets. In this embodiment, two reinforcing beams 72 are provided on the cable chamber 7.

[0094] In this embodiment, the gas flow direction in the cable chamber 7 is specifically from the bottom up in the cable chamber 7 to the first heat dissipation member 81; the gas flow direction in the pressure relief chamber 5 is specifically from the bottom up in the pressure relief chamber 5 to the incoming line chamber 4, and the gas between the cable chamber 7 and the pressure relief chamber 5 can flow mutually; the gas flow direction in the instrument chamber 6 is specifically from the bottom up in the instrument chamber 6 and flows through the second mesh plate 63 to the fan chamber 3, and the gas between the instrument chamber 6 and the cable chamber 7 can flow mutually; the gas flow direction in the incoming line chamber 4 is specifically from the bottom up in the incoming line chamber 4 to the outside of the incoming line chamber 4, and the gas between the incoming line chamber 4 and the fan chamber 3 can flow mutually; the gas flow direction in the fan chamber 3 is specifically from the bottom up in the fan chamber 3 to the outside of the fan chamber 3; thereby realizing the outflow of the heat on the gas-insulated switchgear to the outside of the gas-insulated switchgear.

[0095] In the gas-insulated switchgear of this embodiment, by making the width of the area where the main busbar in the busbar chamber 1 is located greater than the widths of the remaining areas in the busbar chamber 1 and the width of the circuit breaker chamber 2 respectively, it is possible to reduce the widths of the remaining areas in the busbar chamber 1 and the circuit breaker chamber 2 while meeting the installation width requirements of the main busbar in the busbar chamber 1, making the layout of the first heat dissipation member 81 more reasonable, compact and beautiful.

[0096] Moreover, in the gas-insulated switchgear of this embodiment, by providing the fan chamber 3 and the first fan 31, the incoming line chamber 4 and the second fan 41, the pressure relief chamber 5 and the third fan 51, and the cable chamber 7 and the fourth fan 71 that cooperate with each other; on the one hand, it can make the heat dissipation fins of the above-mentioned respective heat dissipation members and the gaps between adjacent heat dissipation fins have sufficient gas flow, which can ensure the heat dissipation effect of the respective heat dissipation members on the busbar chamber 1 and the circuit breaker chamber 2, making the heat dissipation efficiency of the respective heat dissipation members on the busbar chamber 1 and the circuit breaker chamber 2 relatively high; on the other hand, it can make the temperatures in the above-mentioned respective chambers relatively low, that is, it can ensure the heat dissipation effect of each chamber itself, so that the heat dissipation effect of the entire gas-insulated switchgear is better and it can be applicable to the use scenario of large current.

[0097] Obviously, the above-mentioned embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. An inflatable cabinet, characterized in that: include: Busbar room (1); A circuit breaker chamber (2) is arranged below the busbar chamber (1); in the width direction of the inflatable cabinet, the width of the busbar chamber (1) is greater than the width of the circuit breaker chamber (2); and a first heat sink (81) is provided on at least one side of the circuit breaker chamber (2).

2. The inflatable cabinet according to claim 1, characterized in that: In the width direction of the inflatable cabinet, the width of the area where the main busbar in the busbar chamber (1) is located is greater than the width of the remaining area.

3. The inflatable cabinet according to claim 2, characterized in that: In the width direction of the inflatable cabinet, the width of the remaining area of ​​the busbar chamber (1) except the area where the main busbar is located is equal to the width of the circuit breaker chamber (2).

4. The inflatable cabinet according to claim 2, characterized in that: In the width direction of the inflatable cabinet, at least one side of the remaining area in the busbar chamber (1) is provided with the first heat sink (81).

5. The inflatable cabinet according to any one of claims 1 to 4, characterized in that: The inflatable cabinet also includes: A fan chamber (3) is arranged at the top of the busbar chamber (1), a second heat sink (82) is arranged inside the fan chamber (3), and at least one first fan (31) is installed at the top of the fan chamber (3), the first fan (31) being used to discharge the gas in the fan chamber (3) from bottom to top.

6. The inflatable cabinet according to claim 5, characterized in that: The inflatable cabinet also includes: An inlet chamber (4) is arranged at one side of the busbar chamber (1), a third heat sink (83) is arranged inside the inlet chamber (4), the inlet chamber (4) is located at one side of the fan chamber (3) and is connected to the fan chamber (3), at least one second fan (41) is installed at the top of the inlet chamber (4), and the second fan (41) is used to discharge gas in the inlet chamber (4) from bottom to top.

7. The inflatable cabinet according to claim 6, characterized in that: The inflatable cabinet also includes: A pressure relief chamber (5) is arranged on one side of the circuit breaker chamber (2) and below the incoming line chamber (4); the pressure relief chamber (5) is communicated with the incoming line chamber (4); a fourth heat sink (84) and a third fan (51) are respectively arranged in the pressure relief chamber (5); the third fan (51) is used to discharge the gas in the pressure relief chamber (5) from bottom to top into the incoming line chamber (4).

8. The inflatable cabinet according to claim 6, characterized in that: The inflatable cabinet also includes: The instrument room (6) is arranged on the other side of the busbar room (1), the fan room (3) is located between the instrument room (6) and the incoming line room (4), and the instrument room (6) is connected to the fan room (3).

9. The inflatable cabinet according to any one of claims 1 to 4, characterized in that: The inflatable cabinet also includes: A cable chamber (7), the circuit breaker chamber (2) being located on the cable chamber (7), a fourth fan (71) being arranged on at least one inner side wall of the cable chamber (7), the fourth fan (71) being used for discharging gas in the cable chamber (7) from bottom to top to the first heat sink (81).

10. The inflatable cabinet according to claim 9, characterized in that: The top end of the cable chamber (7) is connected to a ventilation plate (74), and the ventilation plate (74) is provided with a through hole (73) matching the first heat sink (81).

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