Aluminum alloy single-phase electric energy metering box

Abstract

The application relates to an aluminum alloy single-phase electric energy metering box, and relates to the field of electrical equipment protection and installation, and comprises an aluminum alloy single-phase electric energy metering box, a bottom plate is arranged in the shell of the electric energy metering box and forms a wiring cavity, and a plug-in device and a damping device are arranged on the bottom plate. The plug-in device comprises a module frame which is detachably connected with the bottom plate, a buckle which penetrates through a fixing plate and is clamped with the bottom plate, a guide rod which is connected with the bottom plate and penetrates through the module frame, and the like; the damping device comprises a damping plate which is connected with the shell through damping springs and is clamped with the bottom plate, and the like, and is further provided with various anti-magnetic field interference structures and other auxiliary components. The application achieves the technical effects that the equipment is convenient to install and disassemble, the damping performance is enhanced, the magnetic field interference is effectively resisted, and the stable operation of electrical equipment in the electric energy metering box and the accurate metering are guaranteed.

Description

Technical Field

[0001] This application relates to the field of power metering equipment technology, and in particular to an aluminum alloy single-phase power metering box. Background Technology

[0002] An electricity metering box is a container or enclosure used to install and protect metering equipment such as electricity meters, water meters, and gas meters. It not only provides physical protection for the metering instruments, ensuring the safety of their working environment, but also facilitates the management and maintenance of these instruments. Depending on the installation location, electricity metering boxes are divided into indoor and outdoor types. Indoor electricity metering boxes are suitable for installation inside buildings, such as in basements or corridor walls, while outdoor electricity metering boxes are typically installed on outdoor walls or utility poles.

[0003] In related technologies, when repairing and maintaining electricity metering boxes, workers often need to use tools to disassemble modules such as meters from the electricity metering box. This process takes a long time and affects the worker's repair efficiency. Summary of the Invention

[0004] To improve maintenance efficiency, this application provides an aluminum alloy single-phase power metering box.

[0005] The aluminum alloy single-phase power metering box provided in this application adopts the following technical solution:

[0006] An aluminum alloy single-phase power metering box includes a shell, a bottom plate inside the shell, the bottom plate and the shell forming a wiring cavity, and a connector and a vibration damping device on the bottom plate.

[0007] The connector includes:

[0008] The module frame is detachably connected to the base plate. A fixing plate is connected inside the module frame, and instrument components are installed inside the fixing plate.

[0009] The buckle passes through the fixing plate and is engaged with the base plate. The buckle is fixed with a rotating shaft, which is rotatably connected to the fixing plate.

[0010] The guide rod connects to the base plate and passes through the module frame;

[0011] Vibration damping devices include:

[0012] The damping plate is connected to the housing via a damping spring, and the damping plate is snapped into the base plate.

[0013] By adopting the above technical solution, the wiring cavity formed by the base plate and the housing facilitates the laying of external wires; the connector device enables a detachable connection between the instrument components and the base plate, making it convenient to disassemble, replace, or repair the instrument components. In addition, the guide rod passes through the module frame, and the vibration damping plate is connected to the housing and snapped into the base plate through a vibration damping spring, realizing the connection between the instrument components and the base plate and reducing the impact force on the instrument components from external impacts.

[0014] Optionally, multiple permanent magnets are fixed inside the frame of the module, and the permanent magnets are connected sequentially along the edge of the module, with adjacent permanent magnets attracting each other.

[0015] By adopting the above technical solution, multiple permanent magnets that are sequentially connected along the edge and attract each other are fixed inside the module frame. This forms a closed annular magnetic circuit on the side of the module frame, reducing the influence of the magnetic field on the inside of the module frame. At the same time, adjacent module frames attract each other through the permanent magnets to form a magnetic array, which, together with the inner wall of the module slot, fixes the position of the module frame and increases the stability of the instrument components.

[0016] Optionally, the inner wall of the module frame is connected to a shielding frame for resisting magnetic field interference. The shielding frame matches the shape of the inner wall of the module frame. The shielding frame is stamped to form a shielding groove. A shielding block for resisting magnetic field interference is inserted into the shielding groove. The instrument components are installed in the shielding cavity formed by the shielding frame. A shielding plate for resisting magnetic field interference is connected to the surface of the module frame away from the fixed plate.

[0017] By adopting the above technical solution, a matching shielding frame is set on the inner wall of the module frame. The shielding frame is stamped to form a shielding groove and a shielding block is inserted inside. A shielding plate is set on the side of the module frame away from the fixed plate. The instrument components are installed in the shielding cavity enclosed by the shielding frame, which suppresses the magnetic field around the permanent magnet in a directional manner and reduces the influence of the magnetic field of the permanent magnet on the instrument components in the module frame.

[0018] Optionally, a module slot communicating with the wiring cavity is provided on the base plate, and a limiting plate that can resist magnetic field interference is connected to the bottom of the module slot. The limiting plate is inserted into the module frame.

[0019] By adopting the above technical solution, the direction of the magnetic field generated by the permanent magnet can be further controlled, so that a stable magnetic connection can be generated between adjacent module frames, enhancing the stability of the instrument components, and further reducing the influence of the magnetic field on the instrument components within the module frame.

[0020] Optionally, a snap-fit ​​block is connected to the base plate, and a snap-fit ​​groove is provided on the snap-fit ​​block. The snap-fit ​​groove is snap-fitted and fixed with the buckle. A return spring is connected to the snap-fit ​​block, and the return spring abuts against the fixing plate. The buckle is connected to the inner wall of the module frame through a limit spring.

[0021] By adopting the above technical solution, the snap-fit ​​block and the snap-fit ​​fastener can securely connect the module frame and the base plate. The return spring abuts against the fixing plate. When the snap-fit ​​is released, the return spring pushes the fixing plate and the module frame out of the module slot through the thrust generated by the deformation, which facilitates the disassembly, replacement or maintenance of the instrument components. The snap-fit ​​is connected to the inner wall of the module frame through the limit spring, which can ensure the normal operation of the snap-fit.

[0022] Optionally, an inner rod is slidably connected inside the guide rod, the inner rod passes through the module frame, and a first limiting block is connected to the end of the inner rod away from the bottom plate; a guide spring is connected inside the guide rod, the guide rod is connected to the inner rod through a wire spring, and a second limiting block is connected to the side of the inner rod opposite to the first limiting block, the second limiting block abuts against the module frame.

[0023] By adopting the above technical solution, the inner rod is slidably connected to the guide rod, the inner rod passes through the module frame and limits the module frame through the first limiting block and the second limiting block. At the same time, the guide spring connects the guide rod and the inner rod, which can provide guidance and buffering for the installation and disassembly of the module frame, and enhance the stability of the module frame installation and disassembly process.

[0024] Optionally, the guide rod is a gas spring, and the telescopic end of the gas spring is connected to the module frame.

[0025] By adopting the above technical solution, the guide rod is a gas spring and the telescopic end is connected to the module frame. When the buckle and the snap-fit ​​block are disengaged, the telescopic end of the gas spring extends, which can assist the reset spring in pushing the module frame out of the module slot. Furthermore, by adjusting the damping valve of the gas spring, the pop-out speed of the gas spring can be slowed down, thereby slowing down the speed at which the instrument components move out of the module slot.

[0026] Optionally, a first limiting frame is provided inside the housing, and a second limiting frame is detachably connected to the first limiting frame via a bearing plate. The bottom plate is located between the first limiting block and the second limiting frame. The bearing plate and the damping plate are connected by a damping spring.

[0027] By adopting the above technical solution, the position of the base plate is limited by the first and second limiting frames in conjunction with the bearing plate, making the installation of the base plate more stable; the bearing plate and the damping plate are connected by damping springs, which further enhances the damping effect of the damping device and reduces the force of external impact on the instrument components.

[0028] Optionally, the vibration damping device also includes a vibration damping airbag fixedly connected to the base plate. The vibration damping airbag has vibration damping holes and is fitted onto the surface of the module frame through the vibration damping holes. The vibration damping airbag is filled with inert gas.

[0029] By adopting the above technical solution, the vibration damping airbag is fixed on the base plate, and then fitted onto the surface of the module frame through the vibration damping hole and filled with inert gas, which can further enhance the vibration damping and buffering effect on the module frame and instrument components, and reduce the impact of external impacts on the instrument components.

[0030] Optionally, the shock-absorbing airbag is connected to a cooling air generator via a pipe; the shock-absorbing airbag is connected to an air outlet valve, which is connected to the housing.

[0031] By adopting the above technical solution, the cold air generating device can inject low-temperature inert gas into the vibration damping airbag, and the inert gas is discharged through the air outlet valve, forming a cold air circulation in the vibration damping airbag, thereby reducing the temperature of the instrument components inside the housing during operation.

[0032] In summary, this application includes at least one of the following beneficial technical effects:

[0033] 1. The module frame and the base plate are detachably connected by buckles and slots, and the return spring cooperates with the buckle. During maintenance, pressing the buckle will disengage the buckle from the locking block, and the return spring will push the fixing plate, allowing the module frame to pop out from the module slot. This facilitates the disassembly, replacement or maintenance of instrument components, and solves the problem of cumbersome installation and disassembly of instrument components in the traditional fixing method.

[0034] 2. The vibration damping device includes vibration damping plates, vibration damping springs, and vibration damping airbags, which can reduce the external impact force on the instrument components, prevent the instrument components from being affected by vibration, extend their service life, and improve metering accuracy, thus solving the problem of traditional power metering boxes lacking effective vibration damping measures;

[0035] 3. The permanent magnet, shielding frame, shielding plate and limiting plate in the module frame work together to control the direction of the magnetic field generated by the permanent magnet, reduce the influence of the permanent magnet magnetic field on the instrument components in the module frame, provide a stable working environment for the instrument components, improve the metering accuracy, and solve the problem of traditional power metering boxes lacking anti-magnetic interference structure. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application;

[0037] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure along plane AA;

[0038] Figure 3 This is a structural schematic diagram of Embodiment 1 of this application, mainly showing the base plate and the vibration damping plate;

[0039] Figure 4 Figure 3 Enlarged schematic diagram of part of the structure at point A;

[0040] Figure 5 yes Figure 3 Schematic diagram of the cross-sectional structure along plane BB;

[0041] Figure 6 This is a structural schematic diagram of Embodiment 2 of this application, mainly showing the base plate and the vibration damping plate;

[0042] Figure 7 This is a structural schematic diagram of Embodiment 3 of this application, mainly showing the base plate and the vibration damping plate;

[0043] Figure 8 This is a schematic diagram of the overall structure of Embodiment 4 of this application.

[0044] Figure Descriptions: 1. Housing; 2. Base Plate; 3. Wiring Cavity; 4. Connecting Device; 401. Module Frame; 402. Permanent Magnet; 403. Shielding Frame; 404. Shielding Plate; 405. Limiting Plate; 406. Fixing Plate; 407. Buckle; 408. Limiting Spring; 409. Snap-fit ​​Block; 410. Reset Spring; 411. Guide Rod; 412. Inner Rod; 413. Guide Spring; 5. Vibration Damping Device; 501. First Limiting Frame; 502. Second Limiting Frame; 503. Bearing Plate; 504. Vibration Damping Spring; 505. Vibration Damping Plate; 506. Vibration Damping Airbag; 6. Module Slot; 7. Shielding Slot; 8. Connecting Block; 9. First Limiting Block; 10. Second Limiting Block; 11. Cold Air Generator; 12. Air Outlet Valve. Detailed Implementation

[0045] The following is in conjunction with the appendix Figure 1 - Appendix Figure 8 This application will be described in further detail below.

[0046] Example 1:

[0047] An aluminum alloy single-phase power metering box, with reference to Figure 1 , Figure 2 The device includes an aluminum alloy housing 1, a base plate 2 mounted on the housing 1, and a wiring cavity 3 formed by the base plate 2 and the inner wall of the housing 1. In addition, a connector 4 and a vibration damping device 5 are provided on the base plate 2. The connector 4 is used to connect the instrument components to the base plate 2, and the vibration damping device 5 is used to reduce the force of external impact on the instrument components.

[0048] Reference Figure 2 , Figure 3 , Figure 4The base plate 2 has multiple module slots 6, and the bottom of each module slot 6 has a wire groove communicating with the wiring cavity 3. The connector 4 includes a module frame 401 inserted into the module slot 6. The module frame 401 has a square cross-section, and multiple stacked permanent magnets 402 are inserted into the square frame of the module frame 401. The permanent magnets 402 are fixed to the module frame 401 with resin glue. Adjacent permanent magnets 402 attract each other, thereby forming a closed annular magnetic circuit on the side of the module frame 401, thus reducing the influence of the magnetic field on the interior of the module frame 401. At the same time, there is a gap of 0.5mm-1mm between the permanent magnets 402 in the same module frame 401, and adjacent module frames 401 form a magnetic array through the mutual attraction of the permanent magnets 402, which, together with the inner wall of the module slot 6, fixes the position of the module frame 401.

[0049] A matching shielding frame 403 is fixedly connected to the inner wall of the module frame 401. The outer surface of the shielding frame 403 abuts against the inner wall of the module frame 401. The shielding frame 403 is made entirely of electrical pure iron, and its surface is coated with a fluorocarbon coating to increase its corrosion resistance. A shielding groove 7 is stamped on the shielding frame 403, and an iron-nickel-molybdenum alloy is inserted into the shielding groove 7 and sealed with resin.

[0050] Reference Figure 2 , Figure 4 A shielding plate 404 made of electrical pure iron is fixedly connected to the side of the module frame 401 away from the base plate 2. Simultaneously, a limiting plate 405 made of electrical pure iron, matching the module frame 401, is fixedly connected to the bottom of the module slot 6 and inserted into the module frame 401. The shielding frame 403, shielding plate 404, and limiting plate 405 work together to suppress the magnetic field around the permanent magnet 402, ensuring a stable magnetic connection between adjacent module frames 401 and reducing the impact of the magnetic field on the internal space of the shielding frame 403.

[0051] The inner wall of the shielding frame 403 encloses a shielding cavity, and a fixing plate 406 is fixedly connected to the inner wall of the shielding cavity. The instrument components are fixedly connected to the side of the fixing plate 406 away from the bottom plate 2, and the instrument components are located inside the shielding cavity.

[0052] The fixing plate 406 has clips 407 extending through both sides of the instrument component. The clips 407 are connected to the inner wall of the shielding frame 403 via limiting springs 408. A rotating shaft is fixedly connected to the clips 407 at the connection point with the fixing plate 406, and the clips 407 are rotatably connected to the fixing plate 406 via the rotating shaft. Additionally, two snap-fit ​​blocks 409, corresponding to the clips 407, are fixedly connected to the bottom of the module slot 6. Each snap-fit ​​block 409 has a slot for engaging with the clips 407. The module frame 401 is detachably connected to the base plate 2 via the engagement of the clips 407 and the slots. Furthermore, a return spring 410 is fixedly connected to each snap-fit ​​block 409. The end of the return spring 410 abuts against the fixing plate 406. The return spring 410 engages with the clips 407, so that when the clips 407 disengage, the return spring 410, through deformation, pushes the fixing plate 406 and the module frame 401 out of the module slot 6.

[0053] Reference Figure 4 , Figure 5 Four guide rods 411 are connected through the base plate 2 at the module slot 6, and the guide rods 411 extend into the wiring cavity 3. In addition, four connecting blocks 8 corresponding to the positions of the guide rods 411 are fixedly connected to the outer surface of the module frame 401. An inner rod 412 is slidably connected inside the guide rod 411, and the inner rod 412 passes through the connecting block 8 at the corresponding position. The guide rod 411 is fixedly connected to the inner rod 412 by a guide spring 413. A first limiting block 9 is fixedly connected to the end of the inner rod 412 away from the base plate 2. The first limiting block 9 abuts against the side of the module frame 401 away from the base plate 2. At the same time, a second limiting block 10 is fixedly connected to the surface of the inner rod 412 between the module frame 401 and the bottom of the module slot 6. The second limiting block 10 abuts against the surface of the module frame 401 near the bottom of the module slot 6.

[0054] Reference Figure 2 , Figure 3 The vibration damping device 5 includes a first limiting frame 501 fixedly connected to the inner wall of the housing 1. A bearing plate 503 is fixedly connected to the side of the first limiting frame 501 near the opening of the housing 1. A second limiting frame 502 is bolted to the side of the bearing plate 503 away from the first limiting frame 501. The first limiting frame 501 and the second limiting frame 502 cooperate to limit the position of the base plate 2. One side of the bearing plate 503 abuts against the housing 1, and a plurality of damping springs 504 are fixedly connected to the other side. A damping plate 505 is fixedly connected to the damping springs 504. The damping plate 505 has an installation groove, and its bottom is inserted into the installation groove and abuts against the bottom of the groove.

[0055] A vibration damping airbag 506 is fixedly connected to the base plate 2. The vibration damping airbag 506 has a number of vibration damping holes corresponding to the module frame 401. The vibration damping airbag 506 is sleeved on the outer surface of the module frame 401 through the vibration damping holes. In addition, the vibration damping airbag 506 is filled with inert gas (IG-541).

[0056] The implementation principle of Embodiment 1 of this application is as follows: During installation, the first limiting frame 501 is first fixed to the housing 1 with bolts. Next, the damping plate 505 on the bearing plate 503 is spliced ​​with the base plate 2. After the base plate 2 and the damping plate 505 are spliced, the second limiting frame 502 is fixed to the bearing plate 503 with bolts. Then, the damping airbag 506 is fixedly connected to the base plate 2, so that the damping hole is located at the edge of the module slot 6.

[0057] After the base plate 2 is installed, the connecting block 8 on the module frame 401 is fitted into the inner rod 412, so that the module frame 401 abuts against the second limiting block 10. Then, the module frame 401 is fixed by the first limiting block 9. The external wires pass through the wiring cavity 3, the wire groove and through the fixing plate 406 in sequence to connect with the instrument components. Finally, the module frame 401 is pushed into the module groove 6 on the base plate 2, so that the reset spring 410 is deformed and compressed, the buckle 407 is engaged with the groove, and the limiting plate 405 is inserted into the module frame 401.

[0058] The module frame 401, through the cooperation of the shielding frame 403, the limiting plate 405, and the shielding plate 404, directionally suppresses the magnetic field around the permanent magnet 402. The shielding frame 403, with its triple anti-magnetic field interference structure of electrical pure iron, iron-nickel-molybdenum alloy, and electrical pure iron, reduces the impact of the magnetic field of the permanent magnet 402 on the instrument components within the module frame 401. Simultaneously, adjacent module frames 401 form a magnetic array through the permanent magnets 402, thereby increasing the stability of the instrument components.

[0059] During maintenance, staff only need to locate the instrument component that needs repair, press the latch 407 to disengage the latch 407 from the latching block 409, at which point the return spring 410 deforms and stretches to push the fixing plate 406, thereby causing the module frame 401 to pop out from the module slot 6, which facilitates the disassembly, replacement or repair of the instrument component.

[0060] Example 2:

[0061] An aluminum alloy single-phase power metering box, with reference to Figure 6 The difference between this and embodiment 1 is that the cross-section of the module frame 401 is a regular hexagon, and the opening shape of the fixing plate 406, shielding frame 403, shielding plate 404, limiting plate 405 and module slot 6 are all matched with the module frame 401.

[0062] The implementation principle of Embodiment 2 of this application is as follows: The module frame 401 adopts a hexagonal honeycomb topology structure, which balances the magnetic attraction force on the side wall of the module frame 401, increases the stability of the module frame 401, and improves the stability of the instrument component. In addition, when the module frame 401 is installed, the module frame 401 can be automatically aligned by magnetic attraction.

[0063] Example 3:

[0064] An aluminum alloy single-phase power metering box, with reference to Figure 7 The difference between this and embodiment 1 is that the guide rod 411 is a gas spring, which is fixedly connected to the base plate 2, and the telescopic end of the gas spring is fixedly connected to the connecting block 8 of the module frame 401.

[0065] The implementation principle of Embodiment 3 of this application is as follows: when the buckle 407 and the snap-fit ​​block 409 are disengaged, the extension end of the gas spring extends to assist the reset spring 410 in pushing the module frame 401 out of the module slot 6. At the same time, the pop-out speed of the gas spring can be slowed down by adjusting the damping valve of the gas spring, thereby slowing down the speed at which the instrument component moves out of the module slot 6.

[0066] Example 4:

[0067] An aluminum alloy single-phase power metering box, with reference to Figure 8 The difference between this and embodiment 1 is that the shock-absorbing airbag 506 is connected to a cold air generator 11 through a pipe, and the shock-absorbing airbag 506 is connected to an air outlet valve 12, which passes through the housing 1 and is fixedly connected to the housing 1.

[0068] The implementation principle of Embodiment 4 of this application is as follows: the cold air generating device 11 injects low-temperature inert gas into the vibration damping airbag 506, and the inert gas is discharged through the air outlet valve 12, thereby forming a cold air circulation in the vibration damping airbag 506, thereby reducing the temperature of the instrument components in the housing 1 during operation.

[0069] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. An aluminum alloy single-phase power metering box, comprising a housing (1), characterized in that: The housing (1) is provided with a bottom plate (2), which cooperates with the housing (1) to form a wiring cavity (3). The bottom plate (2) is provided with a connector (4) and a vibration damping device (5). The connector (4) includes: The module frame (401) is detachably connected to the base plate (2). A fixing plate (406) is connected inside the module frame (401), and an instrument component is installed inside the fixing plate (406). A buckle (407) passes through the fixing plate (406), the buckle (407) is engaged with the base plate (2), the buckle (407) is fixed with a rotating shaft, and the rotating shaft is rotatably connected to the fixing plate (406); A guide rod (411) is connected to the base plate (2), and the guide rod (411) passes through the module frame (401); The vibration damping device (5) includes: The damping plate (505) is connected to the housing (1) via a damping spring (504), and the damping plate (505) is snapped into the base plate (2); Multiple permanent magnets (402) are fixed inside the frame of the module frame (401). The permanent magnets (402) are connected sequentially along the edge of the module frame (401), and two adjacent permanent magnets (402) attract each other. The inner wall of the module frame (401) is connected to a shielding frame (403) for resisting magnetic field interference. The shielding frame (403) matches the shape of the inner wall of the module frame (401). The shielding frame (403) is stamped to form a shielding groove (7). A shielding block for resisting magnetic field interference is inserted into the shielding groove (7). The instrument component is installed in the shielding cavity formed by the shielding frame (403). A shielding plate (404) for resisting magnetic field interference is connected to the surface of the module frame (401) away from the fixing plate (406); A snap-fit ​​block (409) is connected to the base plate (2). A snap-fit ​​slot is provided on the snap-fit ​​block (409). The slot is snap-fitted and fixed with the buckle (407). A return spring (410) is connected to the snap-fit ​​block (409). The return spring (410) abuts against the fixing plate (406). The buckle (407) is connected to the inner wall of the module frame (401) via a limiting spring (408); An inner rod (412) is slidably connected inside the guide rod (411). The inner rod (412) passes through the module frame (401). The end of the inner rod (412) away from the bottom plate (2) is connected to a first limiting block (9). The guide rod (411) is connected to a guide spring (413). The guide rod (411) is connected to the inner rod (412) through a wire spring. The inner rod (412) is connected to a second limit block (10) on the side opposite to the first limit block (9). The second limit block (10) abuts against the module frame (401).

2. The aluminum alloy single-phase power metering box according to claim 1, characterized in that: The base plate (2) has a module slot (6) that communicates with the wiring cavity (3). The bottom of the module slot (6) is connected to a limiting plate (405) that can resist magnetic field interference. The limiting plate (405) is inserted into the module frame (401).

3. The aluminum alloy single-phase power metering box according to claim 1, characterized in that: The guide rod (411) is a gas spring, and the telescopic end of the gas spring is connected to the module frame (401).

4. The aluminum alloy single-phase power metering box according to claim 1, characterized in that: The housing (1) is provided with a first limiting frame (501), and the first limiting frame (501) is detachably connected to a second limiting frame (502) through a bearing plate (503). The bottom plate (2) is located between the first limiting block (9) and the second limiting frame (502). The bearing plate (503) and the damping plate (505) are connected by a damping spring (504).

5. The aluminum alloy single-phase power metering box according to claim 1, characterized in that: The vibration damping device (5) also includes a vibration damping airbag (506) fixedly connected to the base plate (2). The vibration damping airbag (506) has vibration damping holes, and the vibration damping airbag (506) is sleeved on the surface of the module frame (401) through the vibration damping holes. The shock-absorbing airbag (506) is filled with inert gas.

6. The aluminum alloy single-phase power metering box according to claim 5, characterized in that: The shock-absorbing airbag (506) is connected to a cold air generator (11) via a pipe; The shock-absorbing airbag (506) is connected to an air outlet valve (12), which is connected to the housing (1).

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