Combined GIS shell with improved sealing performance
By introducing pneumatic components and gas tank structures into the GIS housing, stable control and slow replenishment of internal gas pressure are achieved, solving the problem of difficult gas replenishment in existing technologies, improving sealing and stability, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 江苏海达电气有限公司
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-24
AI Technical Summary
The existing GIS housing does not have the function of replenishing or replacing the internal insulating gas during use, which leads to increased maintenance costs.
A combined GIS shell structure including a shell, a cover plate, a pneumatic component, and a gas tank was designed. By combining the pneumatic component and the gas outlet valve, the internal air pressure of the shell can be controlled and stabilized. The protective gas is slowly replenished by the gas tank to ensure that the internal air pressure of the shell is higher than the external air pressure, thus preventing the entry of external air.
It achieves long-term continuous insulating gas protection inside the housing, reduces the risk of gas leakage, improves sealing and stability, and reduces maintenance frequency and cost.
Smart Images

Figure CN224164972U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of GIS housing technology, and in particular to a combined GIS housing that improves sealing performance. Background Technology
[0002] GIS is short for Gas Insulated Enclosed Combined Electrical Equipment. With the continuous development of technology, GIS equipment has been widely used in various fields. GIS enclosures are not only widely used in high-voltage and ultra-high-voltage fields, but also in extra-high-voltage fields. GIS enclosures are characterized by their compact structure, small footprint, high reliability, flexible configuration, convenient installation, strong safety, strong environmental adaptability, and low maintenance workload.
[0003] Chinese Patent Publication No. CN221806304U discloses a modular GIS housing, including a bottom shell. A first shell is disposed on the left side of the bottom shell, and a second shell is disposed on the right side. Mounting pipes are welded to the bottom shell, the first shell, and the second shell. The left side of the bottom shell is fixed to the first shell via a combined connecting assembly, and the right side of the bottom shell is fixed to the second shell via the same assembly. The combined connecting assembly includes a positioning seat, which is welded to the bottom of the first shell, and the bottom of the positioning seat is fixedly connected to a positioning block. This modular GIS housing features a split design for the first and second shells, which are respectively installed on the surface of the bottom shell, dividing the entire housing into two parts. By sequentially installing the first and second shells, it facilitates the combined installation of the top and bottom shells, saving time and effort during installation.
[0004] However, the above-mentioned publicly disclosed solutions have the following shortcomings: the above solutions do not have the effect of replenishing or replacing the insulating gas inside the shell during use, thus requiring manual maintenance to replenish the insulating protective gas, which increases maintenance costs. Utility Model Content
[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the present invention, to avoid obscuring the purpose of these documents, and such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0006] The purpose of this utility model is to address the technical problems existing in the background art. This utility model proposes a combined GIS housing with improved sealing performance. This utility model can effectively increase the long-term stable use time of the housing. Through the pneumatic component structure of this device, the high-pressure protective gas inside the housing can be replenished by replacing the gas tank during actual use, thereby achieving the effect of long-term continuous insulating gas protection inside the housing.
[0007] This utility model proposes a combined GIS housing with improved sealing performance, including a housing and a cover plate rotatably connected to its side. A display screen is connected to the outer end face of the cover plate, and several control buttons are connected to the outer end face of the cover plate. A connecting pipe is connected through the bottom of the housing, and several conical extrusion parts distributed in a circle are connected to the top of the connecting pipe. Threaded rings are threaded to the outer arc surface of the conical extrusion parts. The bottom of the conical extrusion parts is connected to the bottom of the inner wall of the housing. An installation component is connected to the inner wall of the housing. A docking hole is provided through the side of the housing, and a pneumatic component is connected to the outer side of the housing.
[0008] By adopting the above technical solution, this solution achieves...
[0009] Preferably, the mounting component includes a sliding bracket connected to the inner wall of the housing, the sliding bracket having equally spaced mounting holes, the mounting holes being internally threaded holes, a mounting bracket slidably connected to the side of the sliding bracket, the mounting bracket having a through hole, the mounting bracket being connected to a locking threaded component, the locking threaded component being threadedly connected to the mounting hole, and the mounting bracket being connected to an electrical module.
[0010] By adopting the above technical solution, this solution can improve the space utilization rate inside the housing of this device through the installation components. Compared with traditional devices, this device can facilitate the stable installation and fixation of various electrical equipment.
[0011] Preferably, the pneumatic component includes a pneumatic housing connected to the outer end face of the housing, an exhaust port is provided on the side of the pneumatic housing, and an air outlet valve is provided on the pneumatic housing, which is connected to the mating hole on the side of the housing.
[0012] By adopting the above technical solution, this solution can control the air pressure inside the shell through the combination of the air outlet valve and the exhaust port. By setting the air outlet valve to start venting only after the air pressure reaches a certain level, the high pressure inside the shell can be kept stable.
[0013] Preferably, the inner wall of the pneumatic housing is connected to a mounting base, the mounting base is connected to an arc-shaped support, the arc-shaped support is connected to a gas tank, a control valve is connected to one side of the gas tank, a mating joint is connected to the side of the control valve, and the mating joint passes through the pneumatic housing and connects to the side of the housing.
[0014] By adopting the above technical solution, this solution can effectively improve the gas connection stability of this device by controlling the valve and the docking joint, and reduce the risk of protective gas leakage in this device.
[0015] Preferably, the top of the mounting base is connected to a rotating connecting base, the top of the rotating connecting base is connected to a threaded connecting rod, the threaded connecting rod is threaded to an arc-shaped pressing component, the arc-shaped pressing component contacts the outer arc surface of the gas tank, and the threaded connecting rod passes through the top of the arc-shaped pressing component.
[0016] By adopting the above technical solution, this solution can achieve the installation and fixing effect of the gas tank through the combination of the arc-shaped pressing part and the threaded connecting rod.
[0017] Preferably, the cover plate is provided with a sealing element on its side, and the sealing element contacts and presses against the joint of the side of the housing.
[0018] By adopting the above technical solution, this solution can improve the stability of the sealing space inside the housing of this device through the sealing element.
[0019] In summary, this utility model has at least one of the following beneficial effects:
[0020] The connecting pipe structure at the bottom of this device is prone to leakage of protective gas during actual use. Therefore, the gas tank is in a slow release state when this device is in use, thereby ensuring that the air pressure of the sealed environment formed by the shell and the cover plate is always higher than atmospheric pressure, thus preventing external air from entering the device and ensuring the stability of the insulation protection inside the shell. Attached Figure Description
[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a front view of an embodiment of the present invention: a combined GIS housing for improving sealing performance.
[0023] Figure 2 This is a schematic diagram of the pipe assembly in an embodiment of the present invention;
[0024] Figure 3 This is a schematic diagram of the electrical module in an embodiment of the present invention;
[0025] Figure 4 This is a schematic diagram of the structure of the pneumatic component in an embodiment of this utility model;
[0026] Reference numerals: 1. Housing; 2. Cover plate; 3. Display screen; 4. Control button; 5. Connecting pipe; 6. Conical extrusion part; 7. Threaded ring; 8. Mounting component; 801. Sliding bracket; 802. Mounting hole; 803. Mounting bracket; 804. Locking threaded part; 805. Electrical module; 9. Connecting hole; 10. Pneumatic component; 1001. Pneumatic housing; 1002. Air outlet valve; 1003. Exhaust port; 1004. Mounting base; 1005. Arc-shaped support part; 1006. Air tank; 1007. Threaded connecting rod; 1008. Arc-shaped pressing part; 1009. Control valve; 1010. Connecting joint. Detailed Implementation
[0027] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below. Example
[0028] like Figures 1-4 As shown, in order to solve the existing problems, this utility model discloses a combined GIS housing with improved sealing performance, including a housing 1 and a cover plate 2 rotatably connected to its side. A display screen 3 is connected to the outer end face of the cover plate 2, and several control buttons 4 are connected to the outer end face of the cover plate 2. A connecting pipe 5 is connected through the bottom of the housing 1. Several conical extrusion parts 6 distributed in a circle are connected to the top of the connecting pipe 5. A threaded ring 7 is threaded to the outer arc surface of the conical extrusion parts 6. The bottom of the conical extrusion parts 6 is connected to the bottom of the inner wall of the housing 1. An installation component 8 is connected to the inner wall of the housing 1. A docking hole 9 is provided through the side of the housing 1. A pneumatic component 10 is connected to the outer side of the housing 1.
[0029] The mounting component 8 includes a sliding bracket 801 connected to the inner wall of the housing 1. The sliding bracket 801 has mounting holes 802 distributed at equal intervals. The mounting holes 802 are internally threaded holes. A mounting bracket 803 is slidably connected to the side of the sliding bracket 801. The mounting bracket 803 has a through hole. A locking threaded component 804 is connected to the mounting bracket 803. The locking threaded component 804 is threadedly connected to the mounting holes 802. An electrical module 805 is connected to the mounting bracket 803.
[0030] The pneumatic component 10 includes a pneumatic housing 1001 connected to the outer end face of the housing 1. The pneumatic housing 1001 has an exhaust port 1003 on its side and an exhaust valve 1002 on its side. The exhaust valve 1002 is connected to the mating hole 9 on the side of the housing 1.
[0031] The inner wall of the pneumatic housing 1001 is connected to a mounting base 1004, the mounting base 1004 is connected to an arc-shaped support 1005, the arc-shaped support 1005 is connected to an air tank 1006, a control valve 1009 is connected to one side of the air tank 1006, and a docking joint 1010 is connected to the side of the control valve 1009. The docking joint 1010 penetrates the pneumatic housing 1001 and connects to the side of the housing 1.
[0032] The specific working principle is as follows: This device can effectively improve the stability of GIS protection. Compared with traditional devices, this device uses a slow replenishment of protective gas to achieve a long-term stable protection effect.
[0033] When this device is in use, the housing 1 provides a protective enclosure, ensuring the stability of the device's installation. The combination of the housing 1 and the cover plate 2 allows the display screen 3 on the cover plate 2, which is connected to the electrical module 805, to display the working status of the electrical module 805. During installation, the electrical module 805 is mounted on the mounting bracket 803. Adjusting the mounting bracket 803 by sliding improves the installation stability and compatibility of the device, ensuring compatibility with electrical modules 805 of various sizes. The locking threaded part 804 secures the mounting bracket 803 to the sliding bracket 801, ensuring the installation stability of the device. The cable connected to the electrical module 805 enters the housing 1 through the connecting pipe 5. Rotating the threaded ring 7 causes the conical extruder 6 to press the side of the cable, thus achieving a sealing effect.
[0034] After the electrical module 805 is installed, the protective gas cylinder 1006 is installed inside the arc-shaped support 1005. Rotating the threaded connecting rod 1007 allows the arc-shaped pressing member 1008 to press and fix the cylinder 1006, thus securing it. The cylinder 1006 is then connected to the housing 1 via the control valve 1009 and the docking joint 1010, allowing protective gas to fill the housing 1. As air inside the housing 1 is discharged through the outlet valve 1002, after a period of time, the housing 1 is mainly filled with protective gas. The outlet valve 1002 is then adjusted to increase the outlet pressure. A certain pressure must be reached before gas can be discharged from the outlet valve 1002, causing the internal pressure of the housing 1 to rise above the external pressure environment, preventing external air from entering the housing 1. When a gas leak occurs inside the housing 1, the pressure drops, causing the high-pressure protective gas inside the cylinder 1006 to automatically replenish the housing 1. Example
[0035] like Figures 1-4As shown, in order to solve the existing problems in this embodiment, based on the same concept as the above embodiment one, the combined GIS housing with improved sealing further includes: a rotating connecting base connected to the top of the mounting base 1004, a threaded connecting rod 1007 connected to the top of the rotating connecting base, an arc-shaped pressing member 1008 threadedly connected to the threaded connecting rod 1007, the arc-shaped pressing member 1008 contacting the outer arc surface of the gas tank 1006, the threaded connecting rod 1007 penetrating the top of the arc-shaped pressing member 1008, and a sealing member provided on the side of the cover plate 2, the sealing member contacting and pressing with the side seam of the housing 1.
[0036] The specific working principle is as follows: This device can effectively improve the installation and fixing stability of the gas tank 1006. Compared with traditional devices, this device can continuously provide protective gas, thereby extending the protection and stability time of the internal environment of the shell 1.
[0037] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A combined GIS housing with improved sealing performance, comprising a housing (1) and a cover plate (2) rotatably connected to its side, wherein a display screen (3) is connected to the outer end face of the cover plate (2), and a plurality of control buttons (4) are connected to the outer end face of the cover plate (2), characterized in that, The bottom of the shell (1) is connected to a connecting pipe (5), the top of the connecting pipe (5) is connected to several conical extrusion parts (6) distributed in a circle, the outer arc surface of the conical extrusion parts (6) is threaded with a threaded ring (7), the bottom of the conical extrusion parts (6) is connected to the bottom of the inner wall of the shell (1), the inner wall of the shell (1) is connected to an installation part (8), the side of the shell (1) is provided with a connecting hole (9), and the outer side of the shell (1) is connected to a pneumatic part (10).
2. The combined GIS housing for improving sealing performance according to claim 1, characterized in that, The mounting component (8) includes a sliding bracket (801) connected to the inner wall of the housing (1). The sliding bracket (801) is provided with mounting holes (802) distributed at equal intervals. The mounting holes (802) are internal threaded holes. The side of the sliding bracket (801) is slidably connected to a mounting bracket (803). The mounting bracket (803) is provided with a through hole. The mounting bracket (803) is connected to a locking threaded component (804). The locking threaded component (804) is threadedly connected to the mounting hole (802). The mounting bracket (803) is connected to an electrical module (805).
3. A combined GIS housing for improving sealing performance according to claim 2, characterized in that, The pneumatic component (10) includes a pneumatic housing (1001) connected to the outer end face of the housing (1). The pneumatic housing (1001) has an exhaust port (1003) on its side and an exhaust valve (1002) on its side. The exhaust valve (1002) is connected to the mating hole (9) on the side of the housing (1).
4. A combined GIS housing for improving sealing performance according to claim 3, characterized in that, The inner wall of the pneumatic housing (1001) is connected to a mounting base (1004), the mounting base (1004) is connected to an arc-shaped support (1005), the arc-shaped support (1005) is connected to a gas tank (1006), a control valve (1009) is connected to one side of the gas tank (1006), a docking joint (1010) is connected to the side of the control valve (1009), and the docking joint (1010) passes through the pneumatic housing (1001) and is connected to the side of the housing (1).
5. A combined GIS housing for improving sealing performance according to claim 4, characterized in that, The mounting base (1004) is connected to a rotating connecting base at the top, and a threaded connecting rod (1007) is connected to the top of the rotating connecting base. The threaded connecting rod (1007) is threaded to an arc-shaped pressing member (1008). The arc-shaped pressing member (1008) contacts the outer arc surface of the gas tank (1006), and the threaded connecting rod (1007) passes through the top of the arc-shaped pressing member (1008).
6. A combined GIS housing for improving sealing performance according to claim 5, characterized in that, The cover plate (2) has a sealing element on its side, and the sealing element contacts and presses against the joint on the side of the housing (1).
Citation Information
Patent Citations
Combined GIS (Gas Insulated Switchgear) shell
CN221806304U