Pluggable low-voltage switch cabinet based on dual power supplies and multiple standby devices and assembling method thereof
By introducing the exhaust and exhaust mechanism into the assembly method of plug-in and unplugged low-voltage switch cabinet, the problem of plug-in interface corrosion in wet environments is solved, ensuring the smoothness of plug-in and assembly stability.
Patent Information
- Application Number
- CN202411892582.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-03-28
AI Technical Summary
When the dual power supply multi-standard plug-and-unit low-voltage switch cabinet is used in a wet environment, moisture in humid air enters the connection between the plug-and-unit unit and the plug-and-interface, causing corrosion of the plug-and-interface, affecting the smoothness of subsequent plug-and-interface.
An assembly method including a pumping mechanism and an exhaust mechanism is designed. Through the cooperation of the guide groove and the guide plate, the pumping mechanism extracts the gas at the bottom of the installation groove, and the exhaust mechanism blows in a dry air flow to ensure that the connection between the plug-in unit and the switch cabinet remains dry.
It effectively prevents corrosion at the plug-in, ensures smoothness of plug-in, and improves the overall assembly stability and convenience of the switch cabinet box.
Smart Images
Figure CN119726401A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of plug-in low-voltage switch cabinets, in particular to a plug-in low-voltage switch cabinet based on dual power supplies and multiple backups and an assembling method thereof. Background Art
[0002] The plug-in low-voltage switchgear based on dual power supply and multiple backup is an advanced power distribution equipment, designed to improve the continuity and reliability of power supply. It can automatically switch to the backup power supply when the main power supply fails, ensuring the uninterrupted operation of key equipment and loads. This type of switchgear adopts a modular design, which is easy to install and maintain. It also supports hot-swap function, allowing the switch to be replaced or repaired without power outage. Plug-in low-voltage switchgear is widely used in commercial, industrial and infrastructure fields, such as data centers, hospitals and transportation systems, to ensure the stability of power supply. Its design takes into account ease of use, safety and environmental adaptability. Although there are some technical challenges and cost considerations, it can effectively improve the reliability and efficiency of the power system through careful design and standardized operation. When a plug-in low-voltage switchgear with dual power supplies and multiple backups is installed in a location with a humid air environment, moisture in the humid air enters the connection between the plug-in unit and the plug interface during the plug-in process. After long-term use, it will cause corrosion of the plug interface, thereby affecting the smoothness of subsequent plug-ins. Therefore, in order to solve the above problem, a plug-in low-voltage switchgear with dual power supplies and multiple backups and an assembly method thereof are proposed. Summary of the invention
[0003] The purpose of the present invention is to provide a plug-in low-voltage switch cabinet based on dual power supplies and multiple backups and an assembly method thereof, so as to solve the problem that during the installation of the plug-in low-voltage switch cabinet with dual power supplies and multiple backups in a location with a relatively humid air environment, moisture in the humid air enters the connection between the plug-in unit and the plug interface during the plug-in process, which will cause corrosion of the plug interface after long-term use, thereby affecting the smoothness of subsequent plug-in.
[0004] To achieve the above object, the present invention provides the following technical solutions: A pluggable low-voltage switchgear based on dual power supplies and multiple backups and an assembly method thereof include a switchgear box and a plug-in unit, wherein the plug-in unit is installed inside the switchgear box through a mounting groove, and guide plates are fixedly connected on both sides of the plug-in unit, and sealing rings are installed on the outside of the plug-in unit and the guide plate, and guide grooves are provided on both sides of the mounting groove, a vacuum mechanism is installed on the inside of one of the guide grooves, and an exhaust mechanism is installed on the inside of the other guide groove; the vacuum mechanism includes a first movable column, one end of the first movable column is fixedly connected to a first piston plate, the first piston plate is slidably connected to the inside of the vacuum shell, and the vacuum shell is inside A first spring is installed on the side, an air pipe is installed on the outside of the exhaust shell, and the other end of the air pipe is fixedly connected to an exhaust plate, the exhaust plate is fixedly connected to the exhaust shell through a connecting piece, and the outside of the exhaust shell is fixedly connected to a first positioning plate; the exhaust mechanism includes an inflatable shell, the outside of the inflatable shell is fixedly connected to a second positioning plate, the inner side of one end of the inflatable shell is slidably connected to a second moving column, one end of the second moving column is fixedly connected to a second piston plate, a second spring is installed inside the inflatable shell, one end of the inflatable shell is fixedly connected to the inflatable plate through a short tube, and a drying screen is fixedly connected to the inner side of the air outlet of the inflatable plate.
[0005] As a further optimization of the present invention, a bottom support seat is fixedly connected to the bottom end of the switch cabinet body, and a plurality of installation slots are provided inside the switch cabinet body, and the installation slots correspond to the plug-in units one by one.
[0006] As a further optimization of the present invention, two guide grooves are opened inside any of the installation grooves, and the guide grooves correspond to the guide plates one by one. The upper and lower ends of the guide groove openings are both arc-shaped, and the upper and lower sides of the end of the guide plate away from the plug-in unit panel are both arc-shaped.
[0007] As a further optimization of the present invention, the exhaust shell includes a shell, a through hole is opened at one end of the shell, and a drying plate is arranged inside the through hole, and a connecting piece fixedly connected to one end of the exhaust shell is hollowed out internally, and a vertical hole is opened in the middle of the connecting piece.
[0008] As a further optimization of the present invention, the first positioning plate and the exhaust shell are fixedly connected to the inner wall of the guide groove, the air pipe is installed inside the switch cabinet body, the first positioning plate and the exhaust shell are slidingly connected, and the exhaust shell and the exhaust plate are connected through the air pipe.
[0009] As a further optimization of the present invention, one end of the first spring is fixedly connected to the first piston plate, the other end of the first spring is fixedly connected to the vacuum shell, and the vacuum shell, the first piston plate and the first movable column have the same axis.
[0010] As a further optimization of the present invention, one end of the second spring is fixedly connected to the second piston plate, the other end of the second spring is fixedly connected to the inflatable shell, and the second piston plate, the inflatable shell and the second movable column have the same axis.
[0011] As a further optimized content of the present invention, wherein: the inflatable plate is connected to the inside of the inflatable shell through a short tube.
[0012] As a further optimization of the present invention, the openings of the inflation plate and the exhaust plate are both oriented toward the center point of the switch cabinet body, and the upper and lower ends of the inflation plate and the exhaust plate openings are both arc-shaped.
[0013] As a further optimized content of the present invention, the following steps are included: Step I: installing the plug-in unit: installing the plug-in unit inside the installation slot through the guide plate. During the installation process, the guide plate enters the installation slot along the guide slot; Step II: The exhaust mechanism exhausts air from the bottom of the installation groove: when one of the guide plates contacts the first positioning plate, the first positioning plate pushes the first piston plate to move toward the connecting piece. During this process, the gas enters the exhaust housing through the exhaust plate and the air pipe to form an exhaust state, while the gas at the other end of the exhaust housing is discharged through the through hole and the connecting piece, which does not affect the exhaust of the exhaust plate. The gas extracted during this process is the gas inside the sealed cavity formed by the installation groove, the plug-in unit and the sealing ring; Step III: The exhaust mechanism blows air to the bottom of the installation slot: another guide plate contacts the second moving column and pushes the second piston plate to move toward the short tube. During the movement, the air inside the inflatable shell is blown to the plug-in unit through the drying mesh plate; Step IV: Complete the installation of the plug-in unit as a whole: install multiple plug-in units from top to bottom in the switch cabinet box in sequence to complete the assembly of the switch cabinet box, then power on and run the test. After the test is normal, power on and use it.
[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the exhaust mechanism and the exhaust mechanism are provided to form a dry airflow during the connection between the plug-in unit and the switch cabinet body, thereby ensuring the dryness of the plug-in unit and the switch cabinet body during the plug-in process, and effectively preventing the plug-in place from being affected by the plug-in smoothness due to the later corrosion; 2. In the present invention, the guide groove and the guide plate are provided to ensure the stability of the plug-in unit during the plug-in process, and at the same time, the convenience of the plug-in process can be improved, thereby improving the stability of the switch cabinet body during the overall assembly process. In addition, through the above-mentioned arrangement, the exhaust shell and the exhaust shell can be stably limited, and the accuracy of the guide plate controlling the exhaust mechanism and the exhaust mechanism can be improved; 3. In the present invention, by providing a sealing ring, in the process of forming a dry airflow through the suction mechanism and the exhaust mechanism, the sealing cavity formed by the installation groove, the plug-in unit and the sealing ring can be utilized to further ensure the dryness of the air at the plug-in location. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the air extraction mechanism of the present invention; Figure 3 It is a cross-sectional view of the housing of the present invention; Figure 4 For the present invention Figure 3 Schematic diagram of the structure at A in the middle; Figure 5 It is a schematic diagram of the exhaust mechanism structure of the present invention; Figure 6 It is a cross-sectional view of the inflatable shell of the present invention.
[0016] In the figure: 1. switch cabinet body; 2. plug-in unit; 3. sealing ring; 4. guide plate; 5. guide groove; 6. Air extraction mechanism; 61. First moving column; 62, exhaust housing; 621, housing; 622, through hole; 63. first positioning plate; 64. air pipe; 65. connecting piece; 66. air extraction plate; 67. first piston plate; 68. first spring; 7. Exhaust mechanism; 71. Inflatable housing; 72. Second positioning plate; 73. Second moving column; 74. Inflatable plate; 75. Short tube; 76. Second piston plate; 77. Second spring; 78. Drying screen plate; 8. Bottom support seat; 9. Mounting slot. DETAILED DESCRIPTION
[0017] See also Figure 1-6 , the present invention provides a technical solution: A pluggable low-voltage switchgear based on dual power supply and multiple backup and an assembly method thereof include a switchgear box body 1 and a pluggable unit 2. The pluggable unit 2 is installed inside the switchgear box body 1 through an installation groove 9. Guide plates 4 are fixedly connected on both sides of the pluggable unit 2. Sealing rings 3 are installed on the outside of the pluggable unit 2 and the guide plate 4. Guide grooves 5 are provided on both sides of the installation groove 9. An air extraction mechanism 6 is installed inside one of the guide grooves 5, and an exhaust mechanism 7 is installed inside the other guide groove 5. The air extraction mechanism 6 includes a first movable column 61, one end of the first movable column 61 is fixedly connected to a first piston plate 67, the first piston plate 67 is slidably connected to the inside of an air extraction shell 62, and a first spring 6 is installed inside the air extraction shell 62. 8. An air pipe 64 is installed on the outer side of the exhaust shell 62, and an exhaust plate 66 is fixedly connected to the other end of the air pipe 64. The exhaust plate 66 is fixedly connected to the exhaust shell 62 through a connecting piece 65, and a first positioning plate 63 is fixedly connected to the outside of the exhaust shell 62; the exhaust mechanism 7 includes an inflatable shell 71, a second positioning plate 72 is fixedly connected to the outer side of the inflatable shell 71, a second moving column 73 is slidably connected to the inner side of one end of the inflatable shell 71, and a second piston plate 76 is fixedly connected to one end of the second moving column 73, a second spring 77 is installed inside the inflatable shell 71, one end of the inflatable shell 71 is fixedly connected to the inflatable plate 74 through a short tube 75, and a drying screen plate 78 is fixedly connected to the inner side of the air outlet of the inflatable plate 74.
[0018] As a technical solution for further implementation of this solution, a bottom support seat 8 is fixedly connected to the bottom end of the switch cabinet box 1, and a plurality of mounting slots 9 are provided inside the switch cabinet box 1, and the mounting slots 9 correspond to the plug-in units 2 one by one. Through the above arrangement, a plurality of plug-in units 2 can be stably installed inside the switch cabinet box 1 for use; As a technical solution further implemented in this scheme, two guide grooves 5 are opened inside any installation groove 9, and the guide grooves 5 correspond to the guide plates 4 one by one. The upper and lower ends of the openings of the guide grooves 5 are both arc-shaped, and the upper and lower sides of the end of the guide plate 4 away from the panel of the plug-in unit 2 are both arc-shaped. Through the above arrangement, the stability of the plug-in unit 2 installed inside the switch cabinet box 1 can be further improved; As a technical solution for further implementing the present invention, the exhaust housing 62 includes a housing 621, a through hole 622 is provided at one end of the housing 621, and a drying plate is provided inside the through hole 622. A connecting piece 65 fixedly connected to one end of the exhaust housing 62 is hollowed out internally, and a vertical hole is provided in the middle of the connecting piece 65. Through the above arrangement, the gas inside the exhaust housing 62 can be discharged; As a technical solution for further implementation of this solution, the first positioning plate 63 and the air extraction shell 62 are both fixedly connected to the inner wall of the guide groove 5, the air pipe 64 is installed inside the switch cabinet box 1, the first positioning plate 63 and the air extraction shell 62 are slidably connected, the air extraction shell 62 and the air extraction plate 66 are connected through the air pipe 64, one end of the first spring 68 is fixedly connected to the first piston plate 67, and the other end of the first spring 68 is fixedly connected to the air extraction shell 62, the air extraction shell 62, the first piston plate 67 and the first movable column 61 have the same axis. Through the above arrangement, the stability of the air extraction process can be further improved; As a further technical solution of this solution, one end of the second spring 77 is fixedly connected to the second piston plate 76, and the other end of the second spring 77 is fixedly connected to the inflatable shell 71. The second piston plate 76, the inflatable shell 71 and the second movable column 73 have the same axis. Through the above arrangement, the stability during the inflation process can be improved; As a further technical solution of the present invention, the inflatable plate 74 is connected to the interior of the inflatable housing 71 through the short tube 75. Through the above arrangement, gas can be blown into the inflatable plate 74 by the movement of the second piston plate 76. As a further technical solution of this solution, the openings of the inflation plate 74 and the exhaust plate 66 are both oriented toward the center point of the switch cabinet body 1, and the upper and lower ends of the inflation plate 74 and the exhaust plate 66 are arc-shaped. Through the above arrangement, dry gas can be blown into the plug-in place during the plug-in process of the plug-in unit 2 to improve the stability after plug-in; As a further technical solution for implementing this scheme, the following steps are included: Step I: Installing the plug-in unit 2: Install the plug-in unit 2 inside the installation groove 9 through the guide plate 4. During the installation process, the guide plate 4 enters the installation groove 9 along the guide groove 5; Step II: the exhaust mechanism 6 exhausts air from the bottom of the installation groove 9: when one of the guide plates 4 contacts the first positioning plate 63, the first positioning plate 63 pushes the first piston plate 67 to move toward the connecting piece 65. During this process, the gas enters the exhaust housing 62 through the exhaust plate 66 and the air pipe 64 to form an exhaust state, and the gas at the other end of the exhaust housing 62 is discharged through the through hole 622 and the connecting piece 65, which does not affect the exhaust of the exhaust plate 66. The gas extracted during this process is the gas inside the sealed cavity formed by the installation groove 9, the plug-in unit 2 and the sealing ring 3; Step III: the exhaust mechanism 7 blows air toward the bottom of the installation groove 9: the other guide plate 4 contacts the second movable column 73 and pushes the second piston plate 67 to move toward the short tube 75. During the movement, the air inside the inflatable housing 71 is blown to the plug-in position of the plug-in unit 2 through the drying mesh plate 78; Step IV: Complete the installation of the plug-in unit 2 as a whole: sequentially install multiple plug-in units 2 from top to bottom inside the switch cabinet body 1 to complete the assembly of the switch cabinet body 1, then power on for operation test, and power on for use after the test is normal.
[0019] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.
Claims
1. A plug-in low-voltage switch cabinet based on dual power supply and multiple backup, comprising a switch cabinet box (1) and a plug-in unit (2), characterized in that: A plug-in unit (2) is installed inside the switch cabinet box (1) via a mounting groove (9), guide plates (4) are fixedly connected to both sides of the plug-in unit (2), sealing rings (3) are installed on the outside of the plug-in unit (2) and the guide plates (4), guide grooves (5) are provided on both sides of the mounting groove (9), an exhaust mechanism (6) is installed inside one of the guide grooves (5), and an exhaust mechanism (7) is installed inside the other guide groove (5); The air extraction mechanism (6) comprises a first movable column (61), one end of the first movable column (61) is fixedly connected to a first piston plate (67), the first piston plate (67) is slidably connected to the inside of an air extraction shell (62), a first spring (68) is installed on the inside of the air extraction shell (62), an air pipe (64) is installed on the outside of the air extraction shell (62), the other end of the air pipe (64) is fixedly connected to an air extraction plate (66), the air extraction plate (66) is fixedly connected to the air extraction shell (62) via a connecting piece (65), and the outside of the air extraction shell (62) is fixedly connected to a first positioning plate (63); The exhaust mechanism (7) comprises an inflatable shell (71), a second positioning plate (72) is fixedly connected to the outside of the inflatable shell (71), a second movable column (73) is slidably connected to the inside of one end of the inflatable shell (71), a second piston plate (76) is fixedly connected to one end of the second movable column (73), a second spring (77) is installed inside the inflatable shell (71), one end of the inflatable shell (71) is fixedly connected to the inflatable plate (74) via a short tube (75), and a drying screen (78) is fixedly connected to the inside of the air outlet of the inflatable plate (74).
2. The plug-in low-voltage switch cabinet based on dual power supply and multiple backup according to claim 1 is characterized in that: A bottom support seat (8) is fixedly connected to the bottom end of the switch cabinet case (1), and a plurality of mounting grooves (9) are provided inside the switch cabinet case (1), and the mounting grooves (9) correspond one to one to the plug-in units (2).
3. The plug-in low-voltage switch cabinet based on dual power supply and multiple backup according to claim 1 is characterized in that: Two guide grooves (5) are provided inside any of the installation grooves (9), the guide grooves (5) correspond to the guide plates (4) one by one, the upper and lower ends of the openings of the guide grooves (5) are both arc-shaped, and the upper and lower sides of one end of the guide plate (4) away from the panel of the plug-in unit (2) are both arc-shaped.
4. The plug-in low-voltage switch cabinet based on dual power supply and multiple backup according to claim 1 is characterized in that: The exhaust housing (62) comprises a shell (621), one end of the shell (621) is provided with a through hole (622), and a drying plate is provided inside the through hole (622); a connecting piece (65) fixedly connected to one end of the exhaust housing (62) is hollowed out inside, and a vertical hole is provided in the middle of the connecting piece (65).
5. The plug-in low-voltage switch cabinet based on dual power supply and multiple backup according to claim 1 is characterized in that: The first positioning plate (63) and the exhaust shell (62) are both fixedly connected to the inner wall of the guide groove (5); the air pipe (64) is installed inside the switch cabinet box (1); the first positioning plate (63) and the exhaust shell (62) are slidably connected; the exhaust shell (62) and the exhaust plate (66) are connected via the air pipe (64).
6. The plug-in low-voltage switch cabinet based on dual power supply and multiple backup according to claim 1 is characterized in that: One end of the first spring (68) is fixedly connected to the first piston plate (67), and the other end of the first spring (68) is fixedly connected to the air pumping shell (62); the air pumping shell (62), the first piston plate (67) and the first movable column (61) are coaxial.
7. The plug-in low-voltage switch cabinet based on dual power supply and multiple backup according to claim 1 is characterized in that: One end of the second spring (77) is fixedly connected to the second piston plate (76), and the other end of the second spring (77) is fixedly connected to the inflatable shell (71); the second piston plate (76), the inflatable shell (71) and the second movable column (73) are coaxial.
8. The plug-in low-voltage switch cabinet based on dual power supply and multiple backup according to claim 1 is characterized in that: The inflatable plate (74) is connected to the interior of the inflatable housing (71) via a short tube (75).
9. The plug-in low-voltage switch cabinet based on dual power supply and multiple backup according to claim 1 is characterized in that: The openings of the inflation plate (74) and the air extraction plate (66) are both oriented toward the center point of the switch cabinet body (1), and the upper and lower ends of the openings of the inflation plate (74) and the air extraction plate (66) are both arc-shaped.
10. The assembly method of the plug-in low-voltage switch cabinet based on dual power supplies and multiple backups according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: Step I: installing the plug-in unit (2): installing the plug-in unit (2) inside the installation groove (9) through the guide plate (4); during the installation process, the guide plate (4) enters the installation groove (9) along the guide groove (5); Step II: The exhaust mechanism (6) exhausts air from the bottom of the installation groove (9): when one of the guide plates (4) contacts the first positioning plate (63), the first positioning plate (63) pushes the first piston plate (67) to move toward the connecting member (65). During this process, gas enters the exhaust housing (62) through the exhaust plate (66) and the air pipe (64), forming an exhaust state, while the gas at the other end of the exhaust housing (62) is discharged through the through hole (622) and the connecting member (65), without affecting the exhaust of the exhaust plate (66). The gas extracted during this process is the gas inside the sealed cavity formed by the installation groove (9), the plug-in unit (2) and the sealing ring (3); Step III: the exhaust mechanism (7) blows air toward the bottom of the installation groove (9): the other guide plate (4) contacts the second movable column (73) and pushes the second piston plate (67) to move toward the short tube (75). During the movement, the air inside the inflatable housing (71) is blown to the plug-in position of the plug-in unit (2) through the drying mesh plate (78); Step IV: Complete the installation of the plug-in unit (2): sequentially install the plurality of plug-in units (2) from top to bottom inside the switch cabinet body (1), complete the assembly of the switch cabinet body (1), and then power on for operation test. After the test is normal, power on for use.