A modified shaft generator medium voltage switchboard structure

By installing a transparent protective plate and energy-absorbing components on the medium-voltage distribution board of the shaft generator, the problems of inconvenient maintenance and easy damage are solved, and stable operation and protection effects are achieved.

CN224683642UActive Publication Date: 2026-08-25GREENTEC MARINE ENG CO LTD
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Patent Information

Application Number
CN202521844205.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-28
Publication Date
2026-08-25
Estimated Expiration
2035-08-28

AI Technical Summary

Technical Problem

The existing monitoring panel of the medium-voltage switchboard of the shaft generator is exposed to the external environment, which makes maintenance inconvenient and prone to damage. When the ship is rocking, it is easy to cause accidental button presses and instrument damage, affecting normal operation.

Method used

A modified shaft-driven medium-voltage switchboard structure was designed, which uses a transparent protective plate and energy-absorbing components. The energy-absorbing components absorb impact energy to protect instruments and buttons, and the handrails stabilize the posture of maintenance personnel.

Benefits of technology

It improves maintenance convenience and protection, reduces the risk of damage to instruments and buttons, and ensures stable equipment operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The embodiment of the application provides a kind of improved shaft launch medium voltage distribution board structure, it is related to electric power system technical field, including medium voltage distribution board host computer and door plate, the front side of medium voltage distribution board host computer is equipped with several door plates, and instrument and button are installed on the upper door plate.The setting of transparent protective plate can shield the instrument and button, avoid external impact directly acting on the instrument and button, improve the protection, and when the shaft launch medium voltage distribution board is impacted by external, the impact force acting on the transparent protective plate will drive the front side fixed rod to move in the fixed pipe, by the movement of the two pistons in the fixed pipe and the movement of damping liquid, the upper side fixed rod can drive the counterweight to move, realize the conversion and consumption of impact energy, so as to reduce the damage possibility of shaft launch medium voltage distribution board, further improve the protection.
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Description

Technical Field

[0001] This application relates to the field of power system technology, and in particular to a modified shaft generator medium-voltage switchboard structure. Background Technology

[0002] The medium-voltage switchboard of the shaft-driven generator serves as the core hub between the ship's shaft-driven generator and the medium-voltage electrical loads. It undertakes key functions such as medium-voltage power reception, synchronization with the grid, distribution and control, and fault protection. Its operational stability directly determines the reliability of the ship's electrical system, thereby affecting the ship's navigation safety and operational efficiency. Currently, the monitoring panels of existing shaft-driven generator medium-voltage switchboards are mostly integrated in the center of the front of the cabinet, and most of the instruments and buttons on them are directly exposed to the external environment.

[0003] During navigation, ships are affected by waves, ocean currents, and other factors, resulting in continuous rolling, pitching, or heaving motions. Personnel and items in the engine room are easily displaced due to this swaying. When maintenance personnel observe and record data on the monitoring panel, the lack of proper support makes it difficult for them to maintain a stable posture, leading to maintenance inconvenience. Furthermore, because the instruments and buttons on the shaft generator's medium-voltage switchboard are open, personnel or items are easily damaged by collisions during ship swaying, and accidental button presses can occur, significantly impacting the normal operation of the shaft generator's medium-voltage switchboard.

[0004] Based on the above reasons, this utility model proposes a modified shaft generator medium-voltage switchboard structure, which can effectively facilitate maintenance personnel's operation of the shaft generator medium-voltage switchboard and improve the protection of the shaft generator medium-voltage switchboard. Utility Model Content

[0005] In view of the above problems, this application provides a modified shaft generator medium voltage switchboard structure to solve the problems of inconvenient maintenance and easy damage to shaft generator medium voltage switchboards in the prior art.

[0006] This application provides a modified shaft generator medium voltage switchboard structure, including a medium voltage switchboard main unit, with several door panels installed on the front side of the medium voltage switchboard main unit, and instruments and buttons installed on the upper door panels; A transparent protective plate is provided on the front side of the instrument and buttons. Several energy-absorbing components are installed on both sides of the transparent protective plate. A connecting block is fixedly connected to the energy-absorbing component. The same mounting plate is movably connected to the connecting block on the same side. The mounting plate is fixedly connected to the upper door panel. A handrail is fixedly connected to the center of the front wall of the medium voltage distribution board host.

[0007] In some embodiments, the energy-absorbing assembly includes a fixed tube, which is L-shaped and fixedly connected to a connecting block. Two pistons are movably connected inside the fixed tube. A sealing ring is fixedly connected to the outer wall of the piston, and the outer wall of the sealing ring is tightly attached to the inner wall of the fixed tube. A fixed rod is fixedly connected to each piston. The ends of the two fixed rods away from the pistons extend from both ends of the inner cavity of the fixed tube. The front fixed rod is fixedly connected to a transparent protective plate. A counterweight is installed at the top of the upper fixed rod, and a spring is sleeved on the upper fixed rod. The two ends of the spring are fixedly connected to the piston and the inner wall of the fixed tube, respectively. Damping fluid is injected into the fixed tube located between the two pistons.

[0008] In some embodiments, the front fixing rod penetrates the transparent protective plate and has threads on its side wall, and the fixing rod is threaded with nuts on both sides of the transparent protective plate.

[0009] In some embodiments, the top end of the upper fixing rod is threaded, and the bottom surface of the counterweight is threaded, with the fixing rod threadedly connected to the threaded hole.

[0010] In some embodiments, a magnet is fixedly connected to the top surface of the uppermost connecting block, and another magnet is fixedly connected to the top surface of the mounting plate, with the two magnets attracting each other.

[0011] In some embodiments, a groove is provided on the side wall of the mounting plate, the connecting block is inserted into the groove, and the connecting block is movably connected to the groove.

[0012] In some embodiments, a fixing plate is fixedly connected to the side wall of the mounting plate, and a bolt is movably connected to the fixing plate, the bolt being threadedly connected to the door panel.

[0013] With the above solution, when maintenance personnel are observing and recording the medium-voltage switchboard of the shaft generator, they can maintain a stable standing posture by holding onto the handrail, which facilitates maintenance and use. The transparent protective plate can shield the instruments and buttons, preventing external impacts from directly affecting them and improving protection. Furthermore, when the shaft generator medium-voltage switchboard is subjected to external impact, the impact force acting on the transparent protective plate will drive the front fixing rod to move within the fixing tube. Through the movement of the two pistons within the fixing tube and the movement of the damping fluid, the upper fixing rod can drive the counterweight to move, realizing the conversion and consumption of impact energy, thereby reducing the possibility of damage to the shaft generator medium-voltage switchboard and further improving protection.

[0014] The above description is merely an overview of the technical solutions of the embodiments of this application. In order to better understand the technical means of the embodiments of this application and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the embodiments of this application more obvious and understandable, specific implementation methods of this application are described below. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the structure on the mounting plate of this application; Figure 3 This is a schematic diagram of the structure on the connecting block of this application; Figure 4 This is a schematic diagram of the internal structure of the energy-absorbing component of this application; Figure 5 This is a structural schematic diagram of the transparent protective plate of this application.

[0017] Explanation of reference numerals in the attached figures: 1. Medium-voltage switchboard main unit; 2. Door panel; 3. Instrument; 4. Button; 5. Transparent protective plate; 6. Energy absorption component; 7. Connecting block; 8. Mounting plate; 9. Handrail; 10. Fixing pipe; 11. Piston; 12. Sealing ring; 13. Fixing rod; 14. Counterweight; 15. Damping fluid; 16. Nut; 17. Magnet; 18. Slide groove; 19. Fixing plate; 20. Bolt; 21. Spring. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] The terms "comprising" and "having," and any variations thereof, in the specification, claims, and drawings of this application are intended to cover without excluding other meanings. The words "a" or "an" do not exclude the presence of multiples. Unless otherwise stated, "multiple" means two or more (including two), and similarly, "multiple sets" means two or more (including two sets).

[0020] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. For example, in the description of this application, terms such as "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0021] Furthermore, descriptions of directions used to explain the operation and construction of the components in this embodiment, such as height, are not absolute but relative. Although these directions are appropriate when the components are in the positions shown in the figure, they should be interpreted differently when these positions change to correspond to the changes.

[0022] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, "connection" or "linkage" in mechanical structures can refer to a physical connection, such as a fixed connection, a detachable connection, or an integral connection. In addition to referring to a physical connection, "connection" or "linkage" in circuit structures can also refer to an electrical connection or a signal connection. For example, it can be a direct connection, i.e., a physical connection, or an indirect connection through at least one intermediate component, as long as the circuit is connected. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0023] To facilitate understanding of the technical solutions in the embodiments of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0024] like Figure 1-5 As shown, this application embodiment provides a modified shaft generator medium voltage switchboard structure, including a medium voltage switchboard host 1, a plurality of door panels 2 are installed on the front side of the medium voltage switchboard host 1, and an instrument 3 and a button 4 are installed on the upper door panel 2 to realize the overall function of the shaft generator medium voltage switchboard; A transparent protective plate 5 is provided on the front side of the instrument 3 and the button 4. Several energy-absorbing components 6 are installed on both sides of the transparent protective plate 5. The energy-absorbing components 6 include a fixed tube 10. The fixed tube 10 is L-shaped and is fixedly connected to the connecting block 7. Two pistons 11 are movably connected inside the fixed tube 10. A sealing ring 12 is fixedly connected to the outer wall of the piston 11. The outer wall of the sealing ring 12 is tightly attached to the inner wall of the fixed tube 10. A fixed rod 13 is fixedly connected to each piston 11. The ends of the two fixed rods 13 away from the pistons 11 extend from both ends of the inner cavity of the fixed tube 10. The front fixed rod 13 is fixedly connected to the transparent protective plate 5. A counterweight 14 is installed at the top of the upper fixed rod 13. A spring 21 is sleeved on the upper fixed rod 13. The two ends of the spring 21 are fixedly connected to the piston 11 and the inner wall of the fixed tube 10, respectively. Damping fluid 15 is injected into the fixed tube 10 located between the two pistons 11. In the technical solution of this embodiment, the transparent protective plate 5 can shield the instrument 3 and button 4, preventing external impacts from directly affecting the instrument 3 and button 4, thus improving protection. When the shaft generator medium voltage distribution board is subjected to external impact, the impact force acting on the transparent protective plate 5 will drive the front fixing rod 13 to move within the fixing tube 10. Through the movement of the two pistons 11 within the fixing tube 10 and the movement of the damping fluid 15, the upper fixing rod 13 can drive the counterweight 14 to move, thereby converting and consuming the impact energy, thus reducing the possibility of damage to the shaft generator medium voltage distribution board and further improving protection. Furthermore, the front fixing rod 13 penetrates the transparent protective plate 5 and has threads on its side wall. The fixing rod 13 is threaded with nuts 16 on both sides of the transparent protective plate 5, which can facilitate the installation and replacement of the transparent protective plate 5. Furthermore, the top of the upper fixing rod 13 is threaded, and the bottom surface of the counterweight 14 is threaded. The fixing rod 13 is threadedly connected to the threaded hole. The appropriate weight of the counterweight 14 can be selected according to actual needs, and the counterweight 14 can be conveniently installed through the threaded connection. A connecting block 7 is fixedly connected to the energy-absorbing component 6. The same mounting plate 8 is movably connected to the connecting block 7 on the same side. A magnet 17 is fixedly connected to the top surface of the uppermost connecting block 7. Another magnet 17 is fixedly connected to the top surface of the mounting plate 8. The two magnets 17 attract each other. The mounting plate 8 is fixedly connected to the upper door panel 2. A sliding groove 18 is opened on the side wall of the mounting plate 8. The connecting block 7 is inserted into the sliding groove 18, and the connecting block 7 and the sliding groove 18 are movably connected. In the technical solution of this embodiment, during use, maintenance personnel can push the transparent protective plate 5 to drive the connecting block 7 to move in the slide groove 18. When the transparent protective plate 5 moves to the upper position, the magnet 17 on the upper connecting block 7 attracts the magnet on the top surface of the mounting plate 8 to complete the positioning of the transparent protective plate 5. Maintenance personnel can conveniently adjust the button 4, thereby facilitating the maintenance of the shaft generator medium voltage distribution board. Furthermore, a fixing plate 19 is fixedly connected to the side wall of the mounting plate 8, and a bolt 20 is movably connected to the fixing plate 19. The bolt 20 is threadedly connected to the door panel 2, which can realize the fixed installation operation between the mounting plate 8 and the door panel 2. A handrail 9 is fixedly connected to the center of the front side wall of the medium-voltage switchboard 1. When maintenance personnel are observing and recording the medium-voltage switchboard, they can hold onto the handrail 9 to maintain a stable posture, which is convenient for maintenance and use.

[0025] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0026] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A modified shaft-driven medium-voltage switchboard structure, characterized in that, Includes a medium-voltage switchboard host (1), and several door panels (2) are installed on the front side of the medium-voltage switchboard host (1). Instruments (3) and buttons (4) are installed on the upper door panels (2). A transparent protective plate (5) is provided on the front side of the instrument (3) and button (4). Several energy-absorbing components (6) are installed on both sides of the transparent protective plate (5). A connecting block (7) is fixedly connected to the energy-absorbing component (6). The same mounting plate (8) is movably connected to the connecting block (7) on the same side. The mounting plate (8) is fixedly connected to the upper door panel (2). A handrail (9) is fixedly connected to the center of the front wall of the medium voltage power distribution board host (1).

2. The modified shaft-driven medium-voltage switchboard structure according to claim 1, characterized in that, The energy-absorbing assembly (6) includes a fixed tube (10), which is L-shaped and fixedly connected to a connecting block (7). Two pistons (11) are movably connected inside the fixed tube (10). A sealing ring (12) is fixedly connected to the outer wall of the piston (11), and the outer wall of the sealing ring (12) is tightly attached to the inner wall of the fixed tube (10). A fixing rod (13) is fixedly connected to each piston (11). The end away from the piston (11) extends from both ends of the inner cavity of the fixed tube (10). The front fixed rod (13) is fixedly connected to the transparent protective plate (5). A counterweight (14) is installed at the top of the upper fixed rod (13), and a spring (21) is sleeved on the upper fixed rod (13). The two ends of the spring (21) are fixedly connected to the piston (11) and the inner wall of the fixed tube (10) respectively. The fixed tube (10) is located between the two pistons (11) and is filled with damping fluid (15).

3. The modified shaft-driven medium-voltage switchboard structure according to claim 2, characterized in that, The fixing rod (13) on the front side penetrates the transparent protective plate (5) and has threads on its side wall. The fixing rod (13) is connected to nuts (16) on both sides of the transparent protective plate (5).

4. The modified shaft-driven medium-voltage switchboard structure according to claim 2, characterized in that, The top of the upper fixing rod (13) is threaded, and the bottom surface of the counterweight (14) is threaded. The fixing rod (13) is threadedly connected to the threaded hole.

5. The modified shaft-driven medium-voltage switchboard structure according to claim 1, characterized in that, A magnet (17) is fixedly connected to the top surface of the uppermost connecting block (7), and another magnet (17) is fixedly connected to the top surface of the mounting plate (8). The two magnets (17) are attracted to each other.

6. The modified shaft-driven medium-voltage switchboard structure according to claim 1, characterized in that, The mounting plate (8) has a sliding groove (18) on its side wall. The connecting block (7) is inserted into the sliding groove (18) and is movably connected to the sliding groove (18).

7. The modified shaft-driven medium-voltage switchboard structure according to claim 1, characterized in that, A fixing plate (19) is fixedly connected to the side wall of the mounting plate (8), and a bolt (20) is movably connected to the fixing plate (19). The bolt (20) is threadedly connected to the door panel (2).