Multiple sealing structure and sealing method based on NVMe SSD test cabinet

Abstract

The present application relates to a multiple sealing structure and a sealing method based on an NVMe SSD test cabinet, and to the technical field of an NVMe SSD test cabinet. The multiple sealing structure includes a box body and an inner box. The inner box is formed by fish scale welding, and the inner box welding portion is provided with connecting flanges that abut against each other. A wire passing hole is provided on the inner box, and a sealing plug is fixedly installed on the wire passing hole by a sealant. The wire is sealed by a sealing ring, and a control mechanism for controlling the pressure inside the inner box is provided on the inner box. The present application performs welding by fish scale welding, which improves the welding strength and sealing, and the wires are sealed by outputting the sealing plug, which improves the sealing effect of the inner box. At the same time, the air pressure in the inner box is controlled by the control mechanism, which reduces the risk of a cooling effect in the inner box due to the low temperature negative pressure in the inner box, and makes the test effect more reliable.

Description

Technical Field

[0001] The present application relates to the technical field of NVMe SSD test cabinets, and in particular to a multiple sealing structure and a sealing method thereof based on an NVMe SSD test cabinet. Background Art

[0002] With the rapid development of information technology, data is growing explosively. NVMe SSD has become the mainstream enterprise-level data storage carrier. As an innovator of data storage technology, NVMe SSD is gradually becoming the preferred storage solution in data centers, high-performance computing, embedded systems, etc. with its ultra-high read and write speeds and low latency characteristics. However, to fully realize its performance potential, it must be verified in a strict test environment, which includes but is not limited to precisely controlled high and low temperatures and rapid temperature changes.

[0003] The sealing structure of traditional test cabinets is often unable to cope with long-term low-temperature tests. Due to insufficient sealing performance and the cold bridge effect of the material itself, frost is prone to appear inside the test cabinet, which not only interferes with the accuracy of the test data, but may also cause damage to the test equipment. In addition, the sealing problem of welding points cannot be ignored. Tiny gaps may become channels for gas exchange, resulting in an unstable test environment, which in turn affects the reliability of NVMe SSD performance testing.

[0004] Therefore, it is particularly urgent to develop a sealing structure that can be tested reliably in response to the special needs of NVMe SSD testing. Summary of the invention

[0005] In order to provide a sealing structure that is reliable in testing, the present application provides a multiple sealing structure and a sealing method thereof based on an NVMe SSD test cabinet.

[0006] In the first aspect, the multi-sealed structure based on the NVMe SSD test cabinet provided by the present application adopts the following technical solutions:

[0007] The multiple sealing structure based on the NVMe SSD test cabinet includes a box body and an inner box arranged in the box body. The inner box is welded by a fish scale welding process. The welding part of the inner box is provided with connecting flanges that abut against each other. A wire passing hole is provided on the inner box. A sealing plug is fixedly installed on the wire passing hole by a sealant. The wires are sealed by a sealing ring. The inner box is provided with a control mechanism for controlling the pressure inside the inner box.

[0008] By adopting the above technical scheme, through the design of the inner box and the box body, the box body can form a certain sealing effect on the inner box, and at the same time, the welding parts of the inner box are processed to obtain connecting flanges, and the connecting flanges are welded after being abutted against each other. The welding is carried out by fish scale welding process, and then the sealing plug is fixed and installed at the wire hole by sealant, and then the wires are passed through the sealing plug to achieve sealing, thereby achieving a sealing effect on the inner box structure.

[0009] By forming fish-scale-like ripples on the weld, the surface area of ​​the weld is greatly increased. At the same time, the design of the connecting flange increases the contact area of ​​the weld, thereby improving the welding strength and sealing. This design not only enhances the structural strength of the inner box, but also effectively reduces the cold bridge effect in low-temperature testing. The wires are sealed through the sealing plug output, so the sealing effect of the inner box is further improved when the wires pass through, thereby reducing the risk of frost in the inner box and making the test result more reliable.

[0010] During low-temperature testing, the control mechanism can detect the air pressure in the inner box. When the air pressure is lower than the specified value, the control mechanism starts to increase the air pressure in the inner box, thereby reducing the risk of cooling effect in the inner box due to the low-temperature negative pressure in the inner box, and further reducing the risk of frost in the inner box, making the test effect more reliable.

[0011] Optionally, the control mechanism includes:

[0012] Pressure detector, used to detect the air pressure inside the inner box;

[0013] A storage box, arranged on the box body;

[0014] An air intake pipe is arranged on the storage box and communicated with the inner box and is provided with an air intake valve;

[0015] A drying and cooling component, used to cool and dry the gas in the storage box;

[0016] The air intake assembly is used to allow the gas in the inner box to enter the storage box for storage, or to control the low-temperature dry gas in the storage box to enter the inner box.

[0017] By adopting the above technical solution, when the test cabinet just starts testing, the test cabinet begins to dry and cool the air in the inner box. At this time, the air intake valve is opened, and the air intake component is started so that the low-temperature dry air in the inner box is sucked into the storage box through the air intake pipe for storage. Then the air intake valve is closed, and the test cabinet continues to dry and cool the air for testing. At the same time, the drying and cooling component continues to cool and dry the gas in the storage box.

[0018] During low-temperature testing, the air pressure in the inner box will become lower and lower as time goes by. Therefore, the pressure detector detects the air pressure value in the inner box. When the air pressure value in the inner box is lower than the specified value, the air intake component controls the low-temperature dry gas in the storage box to enter the inner box, thereby increasing the air pressure in the inner box. At the same time, the low-temperature dry gas entering the inner box will not cause much impact on the test in the inner box, thereby reducing the risk of frost in the inner box and improving the reliability of the test results.

[0019] Furthermore, the air intake component absorbs the gas in the inner box, dries it and cools it down before inputting it into the inner box. The inner box has already performed preliminary drying and cooling on the gas, so that the gas in the storage box can reach the dryness and temperature of the gas in the inner box more quickly, further reducing the adverse effects of the gas in the storage box being input into the inner box on the test, thereby improving the reliability of the test results.

[0020] Optionally, the air intake assembly includes:

[0021] A control panel is slidably disposed in the storage box;

[0022] The pusher is arranged on the storage box and is used to drive the control panel to move so that the gas in the inner box enters the storage box, or the low-temperature dry gas in the storage box enters the inner box.

[0023] By adopting the above technical solution, the pusher starts to drive the control panel to move, and the movement of the control panel can make the gas in the storage box enter the inner box, or make the gas in the inner box be sucked into the storage box.

[0024] Optionally, the drying and cooling component includes:

[0025] The cooling element and the drying element are located on the side close to the connection between the air inlet pipe and the storage box and are used for cooling and drying the gas respectively.

[0026] By adopting the above technical scheme, the gas in the inner box enters the storage box through the air inlet pipe and passes through the cooling component and the drying component, thereby cooling and drying the gas. When the gas is located in the storage cavity, the cooling component and the drying component continue to dry and cool the gas. When the gas is input into the inner box, the cooling component and the drying component can continue to dry and cool the gas, thereby further improving the drying and cooling effect of the gas and improving the reliability of the test results.

[0027] Optionally, the control mechanism further includes an adjusting component electrically connected to the pressure detector, the adjusting component starts adjusting and reduces the gas storage space in the inner box, and when the adjusting component completes the adjustment, the air intake component starts adjusting again.

[0028] By adopting the above technical solution, after the pressure detector detects that the air pressure in the inner box is lower than the specified value, the adjustment component starts to reduce the space in the inner box, thereby increasing the air pressure in the inner box, until the adjustment component reaches the limit position during the adjustment process and stops adjusting. If the air pressure in the inner box is still lower than the specified value, the air intake component starts again to introduce low-temperature dry gas to increase the air pressure in the inner box, thereby reducing the risk of low-temperature negative pressure in the inner box.

[0029] The air pressure is increased by reducing the space inside the inner box, and then low-temperature dry air is input through the air intake assembly to increase the air pressure inside the inner box. This further reduces the impact of the temperature and dryness differences between the input gas and the gas in the inner box on the test results, thereby improving the reliability of the test results.

[0030] Optionally, the adjustment component includes:

[0031] An adjustment box is arranged in the inner box and is provided with an adjustment hole communicating with the inner box;

[0032] An adjustment plate is slidably arranged in the adjustment box;

[0033] The regulating member is arranged on the box body and is used to drive the regulating plate to move and is electrically connected to the pressure detector; the regulating member starts to drive the regulating plate to push the gas in the regulating box into the inner box through the regulating hole, or the regulating member starts to make the gas in the inner box enter the regulating box.

[0034] By adopting the above technical solution, when the test cabinet just starts testing, the adjustment member starts to drive the adjustment plate to move, so that the gas in the inner box moves to the adjustment box, so that the adjustment box and the inner box cooperate to form a space for the gas to stay, so that the temperature and dryness of the gas in the adjustment box and the inner box are the same.

[0035] The pressure detector detects the air pressure value in the inner box. When the air pressure value is lower than the specified value, the adjustment part starts to drive the adjustment plate to move. The movement of the adjustment plate can push the gas in the adjustment box to move into the inner box, and reduce the storage space of the gas in the inner box and the adjustment box, thereby increasing the air pressure value in the inner box. Moreover, the gas in the adjustment box and the inner box is interconnected, and the gas in the adjustment box entering the inner box will not have an adverse effect on the test, thereby improving the reliability of the test results.

[0036] Optionally, the box body is provided with a heat preservation component for keeping the storage box warm, and the heat preservation component includes:

[0037] The heat preservation cover is detachably arranged on the box body through the connection assembly so that the storage box is located in the heat preservation cover to achieve heat preservation and heat insulation;

[0038] The thermal insulation cotton is arranged on the inner wall of the thermal insulation cover and is used to achieve thermal insulation.

[0039] By adopting the above technical solution, the insulation cover is fixedly installed on the box body through the connecting assembly, so that the storage box is located in the insulation cover. At the same time, the insulation cotton and the insulation cover cooperate to insulate the storage box, reducing the risk of the temperature of the gas in the storage box rising due to external heat, thereby ensuring the cooling effect of the gas.

[0040] Optionally, the connection component includes:

[0041] A connecting block is arranged on the heat preservation cover and is plugged and installed on the box body for positioning;

[0042] The connecting screw passes through the connecting block and is threadedly connected to the box body for positioning.

[0043] By adopting the above technical solution, the connecting block is plugged and installed on the box body for positioning, and then the connecting screw is passed through the connecting block and threadedly connected to the box body for positioning. At the same time, the connecting screw is turned to separate from the box body, so that the connecting block and the insulation cover can be removed, thereby realizing the installation and disassembly of the insulation cover. At the same time, the connecting block is plugged and positioned with the box body, so that the insulation cover and the storage box can be positioned, that is, the storage box is located at the center of the insulation cover, thereby further improving the thermal insulation effect of the storage box and the cooling effect of the storage box on the gas.

[0044] Optionally, a sealing ring is snap-fitted onto the heat-insulating cover and presses against the box body for sealing.

[0045] By adopting the above technical solution, the sealing effect is further improved.

[0046] In the second aspect, the sealing method based on the NVMe SSD test cabinet provided in the present application adopts the following technical solution:

[0047] The multiple sealing structure and sealing method based on the NVMe SSD test cabinet include the following steps:

[0048] Pretreatment: Clean the inner box to remove impurities such as oil, dust, etc., and ensure the cleanliness of the welding surface and sealing surface;

[0049] Connection flanging production: bend the parts that need to be welded to obtain connection flanging;

[0050] Fish scale welding: Use automated welding equipment to weld the welds according to a preset fish scale corrugated pattern;

[0051] Wire hole sealing: install the sealing plug and evenly apply sealant between the sealing plug and the inner box;

[0052] Final inspection: Comprehensive inspection of sealing performance through pressure test or gas leak detection method.

[0053] By adopting the above technical solution, the inner box is cleaned to remove impurities such as oil, dust, etc., to ensure the cleanliness of the welding surface and the sealing surface; the places that need to be welded are bent to obtain connecting flanges; automated welding equipment is used to weld the welding points according to a preset fish-scale corrugated pattern; the sealing plug is installed, and sealant is evenly applied between the sealing plug and the inner box; the sealing performance is comprehensively tested through pressure testing or gas leakage detection, thereby improving the reliability of the test results.

[0054] In summary, the present application includes at least one of the following beneficial technical effects:

[0055] 1. By forming fish-scale-like ripples on the weld, the surface area of ​​the weld is greatly increased. At the same time, the design of the connecting flange increases the contact area of ​​the weld, thereby improving the welding strength and sealing. This design not only enhances the structural strength of the inner box, but also effectively reduces the cold bridge effect in low-temperature testing. The wires are sealed through the sealing plug output, so the sealing effect of the inner box is further improved when the wires pass through, thereby reducing the risk of frost in the inner box and making the test effect more reliable.

[0056] 2. The air pressure in the inner box is detected by the control mechanism. When the air pressure is lower than the specified value, the control mechanism starts to increase the air pressure value in the inner box, thereby reducing the risk of cooling effect in the inner box due to low temperature negative pressure in the inner box, further reducing the risk of frost in the inner box, and making the test effect more reliable.

[0057] 3. The air pressure is increased by reducing the space inside the inner box, and then low-temperature dry air is input through the air intake assembly to increase the air pressure inside the inner box, which further reduces the impact of the temperature and dryness difference between the input gas and the gas in the inner box on the test results and improves the reliability of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1 It is a structural schematic diagram of a multiple sealing structure;

[0059] Figure 2 yes Figure 1 Schematic diagram of the cross section of AA;

[0060] Figure 3 yes Figure 2 The enlarged schematic diagram of the middle part B;

[0061] Figure 4 yes Figure 2 Enlarged schematic diagram of part C in the middle.

[0062] Figure numerals: 1. box body; 11. inner box; 12. connecting flange; 13. fixing frame; 2. control mechanism; 21. pressure detector; 22. storage box; 23. air inlet pipe; 24. air inlet valve; 3. drying and cooling assembly; 31. cooling part; 32. drying part; 4. air inlet assembly; 41. control panel; 42. pushing member; 43. connecting rod; 44. storage space; 5. adjusting assembly; 51. adjusting box; 52. adjusting plate; 53. adjusting member; 54. adjusting hole; 55. adjusting rod; 6. thermal insulation assembly; 61. thermal insulation cover; 62. thermal insulation cotton; 7. connecting assembly; 71. connecting block; 72. connecting screw. DETAILED DESCRIPTION

[0063] The present application is described in further detail below.

[0064] The embodiments of the present application disclose a multiple sealing structure based on an NVMe SSD test cabinet.

[0065] Reference Figure 1-Figure 3 The multiple sealing structure based on the NVMe SSD test cabinet includes a box body 1 and an inner box 11 arranged in the box body 1. The inner box 11 is welded by multiple plates, and the fish scale welding process is used during welding. One of the two adjacent plates is formed by bending to form a connecting flange 12. The connecting flange 12 is abutted against the plate and then fixed by welding. The connecting flange 12 can greatly increase the contact area of ​​the two adjacent plates, and improve the firmness and sealing of the inner box 11 after connection; a wire hole is provided on the inner box 11, and a sealing plug is fixedly installed on the wire hole by a sealant, and the wires on the equipment in the inner box 11 pass through the sealing plug, and the sealing plug is pressed against the wire for sealing; the inner box 11 is also provided with a control mechanism 2 for controlling the pressure in the inner box 11. When the air pressure in the inner box 11 is lower than the specified value, the control mechanism 2 is used to increase the air pressure in the inner box 11, thereby reducing the risk of cooling effect due to low temperature negative pressure in the inner box 11, thereby reducing the risk of frost in the inner box 11 and improving the reliability of the test results.

[0066] Reference Figure 2-Figure 3 The control mechanism 2 includes a pressure detector 21, a storage box 22, an air intake pipe 23, a drying and cooling component 3 and an air intake component 4. The pressure detector 21 is fixedly mounted on the inner wall of the inner box 11, and the pressure detector 21 is used to detect the air pressure value in the inner box 11; a fixing frame 13 is fixedly mounted on the upper surface of the box body 1, the storage box 22 is fixedly mounted on the upper surface of the fixing frame 13, the air intake pipe 23 is fixedly mounted on the lower surface of the storage box 22 and passes through the box body 1 and the inner box 11 to extend into the inner box 11, and an air intake valve 24 for controlling the opening and closing is fixedly mounted on the air intake pipe 23 located above the box body 1.

[0067] The drying and cooling component 3 is used to cool and dry the gas in the storage box 22. The drying and cooling component 3 includes a cooling component 31 and a drying component 32. The cooling component 31 and the drying component 32 are vertically spaced and fixedly installed on the bottom wall of the storage box 22, that is, located on the side close to the connection between the air inlet pipe 23 and the storage box 22; the cooling component 31 is a cooling pipe filled with refrigerant, and the drying component 32 is an activated carbon plate, and the drying component 32 is located below the cooling component 31.

[0068] The air intake assembly 4 is used to control the low-temperature dry gas in the storage box 22 to enter the inner box 11, or to allow the gas in the inner box 11 to enter the storage box 22 for storage. The air intake assembly 4 includes a control panel 41 and a pusher 42. The control panel 41 is vertically slidably mounted on the inner wall of the storage box 22. The control panel 41 is located above the cooling member 31. The control panel 41 cooperates with the storage box 22 located below the control panel 41 to form a closed storage space 44. The storage space 44 is used to store gas.

[0069] The push member 42 is fixedly installed on the outer wall of the storage box 22. The push member 42 is an electric push rod, and the piston rod of the push member 42 is vertically arranged upward. A connecting rod 43 is fixedly installed on the piston rod of the push member 42, which vertically passes through the upper surface of the storage box 22 and is fixedly connected to the upper surface of the control panel 41. A control box electrically connected to the pressure detector 21 is arranged on the box body 1. The pressure detector 21 transmits the detected air pressure data to the control box. The control box is electrically connected to the push member 42, and the control box controls the start and stop of the push member 42 according to the air pressure data.

[0070] When the low-temperature test starts in the inner box 11, the inner box 11 cools and dries the air in the inner box 11, the air inlet valve 24 opens, and the pusher 42 starts to drive the control board 41 upward, and the low-temperature dried gas in the inner box 11 enters the storage space 44 through the air inlet pipe 23, and the gas continues to be dried and cooled through the drying component 32 and the cooling component 31. The pusher 42 stops, the air inlet valve 24 is closed, and the gas in the inner box 11 continues to be dried and cooled for testing, and at the same time, the drying component 32 and the cooling component 31 continue to dry and cool the gas in the storage box 22.

[0071] As the temperature inside the inner box 11 becomes lower and lower, the air pressure inside the inner box 11 also decreases. When the air pressure is lower than a specified value, the air inlet valve 24 opens, and the pusher 42 drives the control panel 41 to move downward, so that the gas in the storage box 22 enters the inner box 11 through the air inlet pipe 23, thereby increasing the air pressure value inside the inner box 11, thereby reducing the risk of cooling effect caused by the low temperature negative pressure inside the inner box 11, reducing the risk of frost inside the inner box 11, and improving the reliability of the test results.

[0072] Reference Figure 2-Figure 4The control mechanism 2 also includes an adjusting component 5, which is electrically connected to the pressure detector 21 and is used to adjust the size of the gas storage space in the inner box 11; when the pressure detector 21 detects that the air pressure is lower than a specified value, the adjusting component 5 first starts to reduce the gas storage space in the inner box 11, thereby increasing the air pressure in the inner box 11. When the adjusting component 5 reaches the limit, the air intake component 4 is started again to increase the air pressure in the inner box 11.

[0073] The adjustment assembly 5 includes an adjustment box 51, an adjustment plate 52 and an adjustment member 53. The adjustment box 51 is fixedly mounted on the inner top wall of the inner box 11, and one end of the adjustment box 51 is open and forms an adjustment hole 54 connected to the inner box 11; the adjustment plate 52 is slidably mounted in the adjustment box 51 along the length direction of the adjustment box 51, and an adjustment rod 55 that horizontally passes through the inner box 11 and the box body 1 is fixedly mounted on the side wall of the adjustment plate 52 away from the adjustment hole 54; the adjustment member 53 is an electric push rod, the adjustment member 53 is fixedly mounted on the upper surface of the box body 1, and the piston rod of the adjustment member 53 is connected to the adjustment rod 55, and the control box controls the start and stop of the adjustment member 53 according to the air pressure data.

[0074] When the inner box 11 is just being tested, the adjusting member 53 drives the adjusting plate 52 away from the adjusting hole 54, so that the gas in the inner box 11 enters the adjusting box 51 through the adjusting hole 54, until the adjusting plate 52 stops moving against the inner wall of the adjusting box 51 at the end away from the adjusting hole 54; when the air pressure is lower than the specified value, the adjusting member 53 drives the adjusting plate 52 close to the adjusting hole 54, so that the gas in the adjusting box 51 enters the inner box 11, and the space for gas storage in the inner box 11 is reduced, until the adjusting plate 52 moves to the adjusting hole 54, and the adjusting plate 52 moves to the extreme position.

[0075] Reference Figure 2-Figure 3 The box body 1 is provided with an insulation component 6 for keeping the storage box 22 warm. The insulation component 6 includes an insulation cover 61 and insulation cotton 62. The insulation cover 61 is detachably mounted on the box body 1 through a connecting component 7. The bottom of the insulation cover 61 is against the box body 1 for positioning, and the storage box 22, the fixing frame 13, the air intake pipe 23 and the structure on the storage box 22 are all located in the insulation cover 61 for insulation; the insulation cotton 62 is fixedly mounted on the inner wall of the insulation cover 61 and is used for insulation; an installation groove is opened on the lower surface of the insulation cover 61, and a sealing ring is clamped and installed on the installation groove, and the sealing ring is pressed against the upper surface of the box body 1 for sealing.

[0076] The connecting assembly 7 includes a connecting block 71 and a connecting screw 72. The connecting block 71 is fixedly installed on the outer wall of the heat preservation cover 61 and is located at the bottom. A plug-in block is fixedly installed on the lower surface of the connecting block 71, and the plug-in block is plugged into the upper surface of the box body 1 for positioning; the connecting screw 72 vertically passes through the connecting block 71 and is threadedly connected to the box body 1 for positioning.

[0077] The working principle of the embodiment of the present application is as follows:

[0078] The inner box 11 is cleaned to remove impurities such as oil and dust, and the plates that need to be welded are bent to obtain connecting flanges 12. The connecting flanges 12 are welded against the adjacent plates using fish scale welding technology. The sealing plug is then fixedly installed on the wire hole with sealant to ensure that the firmness and sealing of the inner box 11 meet the requirements. The inner box 11 is then fixedly installed in the box body 1 to reduce the risk of frosting in the inner box 11 and improve the reliability of the test results.

[0079] When the inner box 11 is tested, the air in the inner box 11 is cooled and dried, and the adjusting member 53 drives the adjusting plate 52 to move, so that the gas in the inner box 11 enters the adjusting box 51, and at the same time the air inlet valve 24 is opened, and the pushing member 42 drives the control plate 41 to move upward, so that the gas in the inner box 11 enters the storage space 44, and at the same time the cooling member 31 and the drying member 32 cool and dry the incoming gas, and then the air inlet valve 24 is closed, and the cooling member 31 and the drying member 32 continue to cool and dry the gas in the storage space 44; the inner box 11 continues to be cooled to the specified temperature to realize the test, and when it is detected that the air pressure in the inner box 11 is lower than the specified value, the adjusting member 53 starts to push the adjusting plate 52 close to the adjusting hole 54, thereby reducing the space for gas storage in the inner box 11, thereby increasing the air pressure in the inner box 11.

[0080] When the adjustment plate 52 moves to the limit and the air pressure is still lower than the specified value, the air inlet valve 24 opens, and the push member 42 starts to push the control plate 41 downward, so that the low-temperature dry gas in the storage space 44 enters the inner box 11, thereby reducing the risk of a cooling effect due to low-temperature negative pressure in the inner box 11, reducing the risk of frost in the inner box 11, and improving the reliability of the test results.

[0081] The embodiment of the present application discloses a sealing method based on an NVMe SSD test cabinet.

[0082] Reference Figure 1-Figure 3 , a sealing method based on an NVMe SSD test cabinet includes the following steps:

[0083] Pretreatment: Clean the inner box 11 to remove impurities such as oil, dust, etc. to ensure the cleanliness of the welding surface and the sealing surface;

[0084] Production of the connection flange 12: bending the portion to be welded to obtain the connection flange 12;

[0085] Fish scale welding: the connecting flange 12 is placed against the adjacent plate, and the welding joint is welded according to a preset fish scale corrugated pattern using automated welding equipment;

[0086] Wire hole sealing: fix the sealing plug and evenly apply sealant between the sealing plug and the inner box 11;

[0087] Final inspection: Through pressure testing or gas leakage detection and other methods, the sealing performance of the inner box 11 and the box body 1 is comprehensively inspected to ensure that the sealing performance of the inner box 11 and the box body 1 meets the requirements.

[0088] The working principle of the embodiment of the present application is as follows:

[0089] The inner box 11 is cleaned to remove impurities such as oil and dust, ensure the cleanliness of the welding surface and the sealing surface, bend the welding parts to be welded to obtain the connecting flanges 12, and the connecting flanges 12 are placed against the adjacent plates. Automated welding equipment is used to weld the welding parts according to the preset fish-scale corrugated pattern, and the sealing plug is fixed and installed, and sealant is evenly applied between the sealing plug and the box body 1. The sealing performance of the inner box 11 and the box body 1 is comprehensively tested by pressure testing or gas leakage detection, so that the sealing performance of the inner box 11 and the box body 1 meets the requirements, thereby improving the reliability of the test results of the test cabinet.

[0090] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. The multi-sealed structure based on the NVMe SSD test cabinet is characterized by: The invention comprises a box body (1), and an inner box (11) arranged in the box body (1), wherein the inner box (11) is welded by a fish scale welding process, and the inner box (11) is provided with connecting flanges (12) abutting against each other at the welding position, and a wire passing hole is provided on the inner box (11), and a sealing plug is fixedly installed on the wire passing hole by means of a sealing adhesive, and the wire is sealed by means of a sealing ring, and the inner box (11) is provided with a control mechanism (2) for controlling the pressure inside the inner box (11); The control mechanism (2) comprises: A pressure detector (21) for detecting the air pressure in the inner box (11); A storage box (22) is arranged on the box body (1); An air intake pipe (23) is disposed on the storage box (22) and is in communication with the inner box (11) and is provided with an air intake valve (24); A drying and cooling component (3), used for cooling and drying the gas in the storage box (22); An air intake assembly (4) is used to allow the gas in the inner box (11) to enter the storage box (22) for storage, or to control the low-temperature dry gas in the storage box (22) to enter the inner box (11); The air intake assembly (4) comprises: A control panel (41) slidably disposed in the storage box (22); A pusher (42) is disposed on the storage box (22) and is used to drive the control panel (41) to move, so that the gas in the inner box (11) enters the storage box (22), or so that the low-temperature dry gas in the storage box (22) enters the inner box (11).

2. The multi-sealed structure based on the NVMe SSD test cabinet according to claim 1, characterized in that: The drying and cooling component (3) comprises: The cooling element (31) and the drying element (32) are located on one side close to the connection between the air inlet pipe (23) and the storage box (22) and are used to cool and dry the gas respectively.

3. The multi-sealed structure based on the NVMe SSD test cabinet according to claim 1, characterized in that: The control mechanism (2) further comprises an adjusting component (5) electrically connected to the pressure detector (21); the adjusting component (5) starts adjusting and reduces the gas storage space in the inner box (11); when the adjusting component (5) completes the adjustment, the air intake component (4) starts adjusting again.

4. The multi-sealed structure based on the NVMe SSD test cabinet according to claim 3 is characterized in that: The regulating component (5) comprises: An adjustment box (51) is disposed in the inner box (11) and is provided with an adjustment hole (54) communicating with the inner box (11); An adjustment plate (52) slidably disposed in the adjustment box (51); An adjusting member (53) is disposed on the box body (1) and is used to drive the adjusting plate (52) to move and is electrically connected to the pressure detector (21); the adjusting member (53) is activated to drive the adjusting plate (52) to push the gas in the adjusting box (51) into the inner box (11) through the adjusting hole (54); or, the adjusting member (53) is activated to allow the gas in the inner box (11) to enter the adjusting box (51).

5. The multi-sealed structure based on the NVMe SSD test cabinet according to claim 1, characterized in that: The box body (1) is provided with a heat-insulating component (6) for keeping the storage box (22) warm. The heat-insulating component (6) comprises: A heat preservation cover (61) is detachably arranged on the box body (1) via a connection assembly (7) so that the storage box (22) is located inside the heat preservation cover (61) to achieve heat preservation and thermal insulation; The thermal insulation cotton (62) is arranged on the inner wall of the thermal insulation cover (61) and is used to achieve thermal insulation.

6. The multi-sealed structure based on the NVMe SSD test cabinet according to claim 5, characterized in that: The connection component (7) comprises: A connecting block (71) is arranged on the heat-insulating cover (61) and is plugged and installed on the box body (1) for positioning; The connecting screw (72) passes through the connecting block (71) and is threadedly connected to the box body (1) for positioning.

7. The multi-sealing structure based on the NVMe SSD test cabinet according to claim 5, characterized in that: A sealing ring is mounted on the heat-insulating cover (61) and is pressed against the box body (1) for sealing.

8. The sealing method applied to the multiple sealing structure as claimed in claim 1, characterized in that: The following steps are involved: Pretreatment: Clean the inner box (11) to remove impurities such as oil, dust, etc., and ensure the cleanliness of the welding surface and the sealing surface; Production of connecting flange (12): bending the part to be welded to obtain the connecting flange (12); Fish scale welding: Use automated welding equipment to weld the welds according to a preset fish scale corrugated pattern; Sealing the cable hole: Install the sealing plug and evenly apply sealant between the sealing plug and the inner box (11); Final inspection: Comprehensive inspection of sealing performance through pressure test or gas leak detection method.

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