Maintenance tool for electrical module and multi-cabinet system

Abstract

The invention discloses a maintenance tool for an electrical module and a multi-cabinet system. The maintenance tool comprises a supporting assembly and a driving assembly. The supporting assembly is provided with a connecting part detachably connected with the bearing part, a positioning structure and a supporting structure, the positioning structure is used for being in limiting fit with a cabinet body of the electrical cabinet, and the supporting structure is configured to be in butt joint with the bearing part of the corresponding mounting channel in the state that the positioning structure is in limiting fit with the cabinet body so as to form a slide way extending in the first direction; the driving assembly is used for driving the electrical module to move relatively between the mounting channel and the supporting structure along the slide way. The multi-cabinet system comprises at least two electrical cabinets and a maintenance tool. The problems that in the electrical module maintenance or replacement process, manual operation efficiency is low, the risk is high, space adaptability is poor, and maintenance is difficult when the electrical module is heavy are solved.

Description

Technical Field

[0001] This invention relates to the field of electrical maintenance technology, and more specifically to a maintenance fixture and multi-cabinet system for electrical modules. Background Technology

[0002] Electrical equipment generally adopts a modular design. The cabinet of the electrical equipment contains rectangular arrays of mounting channels, where electrical modules (such as energy storage battery packs, power supply units, and energy storage converter modules) are fixed. When using electrical equipment, multiple devices are usually placed together. When there is sufficient space between adjacent devices, and maintenance or replacement of electrical modules is required, a forklift can be moved along the extension of the mounting channels. The operator must manually pull the electrical module out of the mounting channel, support it, and gradually place it onto the forklift's forks. After maintenance, the same process must be reversed: the electrical module is pushed back into the mounting channel from the forklift's forks.

[0003] When the space between electrical devices is limited, the forklift cannot move along the length of the installation channel, but only along its width. The length of the forks also extends along the width of the channel. Multiple forks are spaced apart along the length of the channel. When the electrical module is pulled out of the channel, the forks are disconnected, requiring more manual support until the module is fully placed on the forklift's forks. After maintenance, the same process must be reversed: pushing the module back into the channel from the forks, again requiring more manual support. This process involves multiple manual handling steps, resulting in long maintenance times and high human intervention. During manual support or handling, the electrical module is prone to falling due to operator fatigue, causing equipment damage and personal injury.

[0004] Furthermore, even with a forklift, pulling out electrical modules located high up in the equipment remains difficult. Operators need to elevate the modules to perform the pulling action, further increasing the operational risk. Moreover, if the electrical modules are heavy, they are very difficult to pull out manually, making maintenance challenging. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned defects or problems in the background art and to provide a maintenance tooling and multi-cabinet system for electrical modules, which reduces the problems of low efficiency, high risk, poor space adaptability, and maintenance difficulties when the electrical modules are heavy during the maintenance or replacement process.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Technical solution one relates to a maintenance fixture for an electrical module, used for installation onto a carrier of a transport component and assisting in the transfer of the electrical module between an installation channel and the maintenance fixture in an electrical cabinet. The installation channel has a support portion extending in a first direction and adapted to support the electrical module. The maintenance fixture includes a support assembly having a connecting portion detachably connected to the carrier portion, a positioning structure, and a support structure. The positioning structure is used to engage with the cabinet body of the electrical cabinet when the carrier portion is located at a predetermined position in front of the electrical cabinet. The support structure is configured to dock with the support portion of the corresponding installation channel in the state of engagement between the positioning structure and the cabinet body to form a slide extending in the first direction. A drive assembly is disposed on the support assembly for driving the electrical module to move relative to the carrier portion along the slide between the installation channel and the support structure.

[0008] Technical Solution Two, based on Technical Solution One, further includes a lifting drive component disposed on the support assembly; the support assembly includes a support base, a fixed unit, and a movable unit, the fixed unit being fixedly connected to the support base, and the movable unit being connected to the lifting drive component; the fixed unit and the movable unit are arranged along a first direction to form the support structure; the lifting drive component drives the movable unit to move between a raised position and a lowered position to switch the support structure between a continuous state and a disconnected state; the support structure is adapted to dock with the installation channel in the continuous state; in the continuous state, the movable unit is located in the raised position, and in the raised position, the movable unit is flush with the fixed unit to form a continuous support surface combination of the support structure; in the disconnected state, the movable unit is located in the lowered position, and in the lowered position, the movable unit is lower than the fixed unit to form a clearance space suitable for the insertion of the load-bearing part of another transport component into the support structure.

[0009] Technical Solution 3 based on Technical Solution 2: The fixing unit includes at least two fixing groups arranged at intervals along a first direction, each fixing group including two fixing blocks distributed on both sides of the support base along a second direction perpendicular to the first direction; the moving unit includes at least one moving group, each moving group including two moving blocks distributed on both sides of the support base along the second direction; the fixing blocks and moving blocks are alternately arranged along the first direction and the moving blocks are always located between two fixing blocks along the first direction; the lifting drive drives the moving blocks to move between a raised position and a lowered position, and when the moving block is in the lowered position, the space above the moving block forms a clearance area, and each clearance area forms the clearance space.

[0010] Technical Solution 4 based on Technical Solution 3: The number of activity groups is at least two, and each activity group is arranged at intervals along the first direction.

[0011] Technical Solution 5 based on Technical Solution 4: The transport component is a forklift; the load-bearing part includes at least two parallel spaced fork arms; the connecting part is located at the bottom of the support base and is provided with at least two insertion holes that extend and penetrate along the second direction at intervals along the first direction; the connecting part is also provided with at least one screw for each insertion hole, the screw is screwed to the hole wall of the insertion hole and is adapted to be inserted into the insertion hole in a direction perpendicular to the second direction, the screw is configured to abut against the fork arm when the fork arm is inserted into the insertion hole, so that the fork arm is fixed in the insertion hole.

[0012] Technical Solution Six based on Technical Solution Three: The front end of the electrical cabinet is provided with a door frame, and the entrance end of the installation channel is close to the door frame; each fixing block is provided with an integral guide part and a limiting part, the guide part is used to support the electrical module, and the limiting part is used to restrict the movement of the electrical module along the second direction; the fixing block near the front end of the cabinet is defined as the first fixing block, and the guide part and the limiting part of the first fixing block are respectively the first guide part and the first limiting part; the first guide part protrudes from the first limiting part along the first direction and is adapted to be inserted into the door frame to dock with the support part of the installation channel.

[0013] Technical solution seven based on technical solution six: the two first guide parts are also adapted to abut against the two sides of the door frame opposite each other along the second direction; the first limiting part is adapted to abut against the front end of the door frame along the first direction; the two first guide parts and the two first limiting parts cooperate to form the positioning structure.

[0014] Technical solution eight, based on any one of technical solutions two to seven: The supporting base is further provided with at least one guide rail extending along a first direction. The driving component includes a driving member and a sliding member. The sliding member is provided with a sliding part that is equal in number to the number of guide rails and is slidably disposed on the guide rails. The sliding member is also provided with a pushing part suitable for connection with an electrical module. The driving member is suitable for driving the sliding member to slide on the guide rail to drive the electrical module to slide along the slide.

[0015] Technical solution nine based on technical solution eight: The sliding member includes a sliding block and a pulling rod screwed to the sliding block and extending along a first direction. The sliding block is provided with the sliding part, and the pushing part is provided at the end of the pulling rod. The driving member includes a driving motor and a lead screw connected to the output end of the driving motor. The fixed end of the driving motor is fixed to the support base. The lead screw extends along the first direction and is rotatably mounted on the support base at both ends. The sliding block is screwed to the lead screw.

[0016] Furthermore, the present invention also provides technical solution ten, which relates to a multi-cabinet system, including at least two electrical cabinets spaced apart along a first direction and maintenance fixtures for electrical modules as described in any one of technical solutions one to nine. The electrical cabinet includes a cabinet body and multiple electrical modules. The cabinet body is provided with a plurality of installation channels extending along the first direction. The installation channels are provided with support portions suitable for supporting electrical modules. The electrical modules are fixed in the installation channels. The length direction of the electrical module is the first direction, its length-to-width ratio is greater than 1.5, and its weight is greater than 500 kg.

[0017] As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following beneficial effects:

[0018] In technical solution one, "docking" refers to the coordinated matching relationship between the support unit and the supporting structure through spatial position and functional plane, allowing the electrical module to move relative to the support unit and the supporting structure. This allows for physical gaps between the support unit and the supporting structure, and the physical gaps must be designed so that when the electrical module passes through the gap, its center of gravity projection always lies on the support unit or the supporting structure. "Transporting component" refers to a mobile vehicle with three-dimensional motion capabilities (horizontal translation + vertical lifting) and the ability to bear loads.

[0019] After the maintenance fixture is installed on the carrier of the transport component (such as a forklift), it becomes a temporary support platform for the transfer of electrical modules. When the space between adjacent electrical cabinets is small, and maintenance or replacement of electrical modules is required, the transport component can move along the width of the installation channel. In actual operation, the carrier of the transport component can be controlled to move the maintenance fixture to the position of the installation channel that needs maintenance, that is, the carrier is located at a predetermined position in front of the electrical cabinet. Through the positioning structure of the support component and the cabinet body limit cooperation, the position of the maintenance fixture relative to the cabinet body can be fixed, and the support structure can be connected with the corresponding installation channel to form a slide extending along the first direction. Then, the drive component is controlled to drive the electrical module to move along the slide from the installation channel to the support structure, so that the electrical module can be pulled out from the installation channel of the cabinet and supported by the support structure. There is no need to touch the electrical module during the extraction process. Similarly, after the maintenance or replacement of the electrical module is completed, the drive component can be controlled to drive the electrical module to move along the slide from the support structure to the installation channel, and there is no need for manual contact with the electrical module. This reduces the risk of electrical modules falling during manual handling or support, especially reducing the risk of needing to elevate electrical modules when they are in a high position for manual handling, and reducing the maintenance difficulties of manually pulling out heavy electrical modules.

[0020] The connecting part and the load-bearing part are detachably connected, allowing the maintenance tooling to be separated from the transport parts, which is more conducive to the transportation of the maintenance tooling. The positioning structure ensures the docking of the support structure and the installation channel. The docking of the support structure and the installation channel forms a slide extending along the first direction, which is conducive to the smooth transition of the electrical module between the installation channel and the support structure and reduces the suspended section when the electrical module is manually supported.

[0021] Therefore, this technical solution uses maintenance fixtures as an intermediary platform to coordinate the positioning structure with the cabinet, provide continuous support for the slide rails, and enable mechanical drive of the drive components. This reduces problems such as low efficiency, high risk, poor space adaptability, and maintenance difficulties when electrical modules are heavy, which are associated with manual operation during the maintenance or replacement of electrical modules.

[0022] In Technical Solution 2, the core improvement lies in the switchable state design of the support structure, effectively solving the problem of electrical module loading and unloading caused by the lack of fixed constraints after the maintenance tool is removed from the electrical cabinet. When an electrical module is transferred from the installation channel to the support structure, if it is directly removed via the drive assembly, the maintenance tool will shift due to the lack of fixed constraints. The frictional resistance between the electrical module and the support structure will make it difficult for the electrical module to completely detach from the support structure, requiring manual pushing for removal. Similarly, when placing a new electrical module onto the support structure of the maintenance tool, friction will also hinder the module from fully positioning, often resulting in parts of the electrical module protruding outside the support structure. This positioning deviation severely interferes with the positioning structure of subsequent tooling and the limiting fit of the cabinet, causing the support structure to fail to accurately align with the installation channel to form a sliding track, significantly increasing maintenance difficulty and operational risks.

[0023] This solution uses a lifting drive to control the movable unit to switch between raised and lowered positions, allowing the support structure to be in a continuous or disconnected state. In the disconnected state, the movable unit moves down to create a dedicated clearance space, allowing the load-bearing part of another transport component to directly insert into the clearance space of the maintenance fixture. It should be understood that at this time, the space on at least one side of the support assembly along the second direction perpendicular to the first direction is unoccupied and allows the second transport component to approach. Therefore, the electrical module to be maintained can be completely removed from the maintenance fixture by the second transport component, and a new electrical module can also be precisely placed on the support structure by the second transport component, completely avoiding manual module loading and unloading. Furthermore, after the electrical module is loaded, the movable unit rises to the continuous state, allowing the bottom surface of the electrical module to automatically fall onto the complete support surface, reducing positioning deviation and ensuring the positioning structure and the cabinet's limiting fit when the maintenance fixture re-connects to the cabinet. In addition, there is no relative sliding friction between the electrical module and the maintenance fixture during the entire loading and unloading process, physically reducing the need for manual pushing.

[0024] Even better, this technical solution offers significant advantages for the maintenance of heavy electrical modules. When a module weighs over 500kg, traditional manual pushing and pulling operations can easily lead to muscle strains or falls. This solution, through a mechanized process of direct handling with a second transporter, greatly reduces the operational risks of heavy electrical modules. Simultaneously, it compresses the original process requiring four manual interventions (unloading the old module, installing the new module, position calibration, and module pushing and pulling) into a zero-contact operation, significantly improving maintenance efficiency. This collaborative operation mode, involving the switching of support structure states and the transporter, reduces the inherent drawbacks of low efficiency and high risk associated with manual operations in the prior art, achieving a fundamentally safer transformation in electrical module maintenance. In situations where space is limited between adjacent electrical cabinets and electrical modules are heavy, the first and second transport components can be deployed on both sides of the support assembly along the second direction. The first transport component is fixed on one side, providing stable support and maintaining the position of the maintenance fixture, while the second transport component is located on the other side and is dedicated to performing electrical module replacement and transportation operations. Through the coordinated operation of the two transport components (the first ensures structural stability, and the second performs dynamic tasks), combined with the switchable state design of the support structure of the maintenance fixture, the maintenance difficulties caused by the excessive weight of electrical modules and limited space between cabinets are effectively solved, enabling convenient and safe module replacement.

[0025] In technical solution three, each movable group includes movable blocks distributed on both sides of the support base along the second direction, so that clearance space can be formed on both sides of the maintenance fixture along the second direction. This allows the bearing part of the second transport component to be inserted into the clearance space from either side of the maintenance fixture along the second direction. This advantage is particularly prominent when the space between adjacent electrical cabinets (along the first direction) is narrow, allowing the transport component to be operated nearby without adjusting its direction, thus shortening the operation path. Fixed blocks and movable blocks are alternately arranged along the first direction, and the movable blocks are always located between two fixed blocks along the first direction, which makes the strength of the support structure balanced and the clearance space located in the middle of the support structure along the first direction. The bearing part of the other transport component also supports the middle of the electrical module along the first direction, which is more conducive to the smooth transportation of the electrical module. The fixed blocks can also limit the displacement of the movable blocks along the first direction to prevent the movable blocks from shifting. When the support structure is damaged, the movable blocks or fixed blocks can be replaced independently.

[0026] In technical solution four, the number of moving groups is at least two, and each moving group is arranged at intervals along the first direction. Therefore, at least two clearance areas arranged along the first direction can be formed, which is more conducive to the insertion of the bearing part of another transport component into the clearance area and multiple points of contact with the electrical module in the first direction, thus making it more conducive to the smooth transport of the electrical module.

[0027] In technical solution five, when the transport component is a forklift and the load-bearing part includes at least two parallel and spaced fork arms, the inner diameter of the socket is usually larger than the outer diameter of the fork arm to facilitate insertion of the fork arm into the socket. The screw-driven radial pressing structure can apply a top-resisting force to the side of the fork arm, fixing the fork arm in place within the socket. This ensures that the support structure and the installation channel always maintain precise alignment, providing a smooth transition path for the electrical module and reducing the risk of loosening or falling due to vibration of the electrical module. When the maintenance tool needs to be removed from the transport component, simply turning the screw in the opposite direction will allow the fork arm to exit the socket, thereby improving the efficiency of disassembly and assembly of the maintenance tool and the transport component.

[0028] The socket extends and penetrates along the second direction, forming open interfaces on both sides of the maintenance fixture. Therefore, the fork arm can engage with the socket from either side of the maintenance fixture along the second direction, reducing the path of the transport component. The second transport component can engage with the maintenance fixture from the other side of the maintenance fixture along the second direction, thereby enabling the transfer of electrical modules from the installation channel to the support structure and from the support structure to the load-bearing part of another transport component within a confined space, and vice versa.

[0029] In technical solution six, due to the setting of the door frame, there is generally a gap between the entrance end of the installation channel and the door frame. The first guide part is inserted into the door frame and docks with the installation channel, which can shorten the physical gap between the support part and the support structure, which is conducive to the smooth sliding of the electrical module.

[0030] In technical solution seven, the two first guide parts are also adapted to abut against the two sides of the door frame opposite each other in the second direction; the first limiting part is adapted to abut against the front end of the door frame in the first direction, so that the maintenance tool and the cabinet are limited in the first and second directions. The two first guide parts and the two first limiting parts cooperate to form a positioning structure, that is, the positioning structure can realize the limiting cooperation between the maintenance tool and the cabinet in the first and second directions, while the limiting of the maintenance tool in the height direction is completed by the transport part. Therefore, the maintenance tool is fixed relative to the cabinet.

[0031] In technical solution eight, the setting of guide rails, in conjunction with the formation of slide tracks, can ensure the smooth sliding of electrical modules.

[0032] In technical solution nine, since there is a gap between the electrical module and the door frame when the electrical module is located in the installation channel, the pushing part needs to extend into the installation channel. However, the distance between the front end of the electrical module and the door frame is inconsistent for different electrical cabinets. The pull rod is screwed to the sliding block and extends along the first direction. The pushing part is located at the end of the pull rod. Therefore, the extension length of the pushing part can be adjusted by adjusting the extension length of the pull rod, thus making it suitable for electrical cabinets of different specifications. The lead screw extends along the first direction and is rotatably fixed to the support base at both ends. The sliding block is screwed to the lead screw. Therefore, the rotation of the lead screw can be converted into the linear movement of the sliding block. The structure is simple and the cost is low.

[0033] The multi-cabinet system in technical solution ten inherits the technical advantages of any one of technical solutions one through nine. In technical solution ten, the electrical module is relatively long and weighs more than 500 kg. At this time, it is impossible to pull out the electrical module manually. The electrical module can be maintained or replaced by maintenance tools, which makes the maintenance of the electrical module more convenient when the electrical module is heavy and long. Attached Figure Description

[0034] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram showing the maintenance fixture reaching a predetermined position in front of the electrical cabinet according to an embodiment of the present invention.

[0036] Figure 2 for Figure 1 An enlarged schematic diagram of part A;

[0037] Figure 3 This is a schematic diagram of an embodiment of the present invention where an electrical module is pushed into the installation channel;

[0038] Figure 4 This is a schematic diagram showing the support structure of the maintenance fixture in a continuous state according to an embodiment of the present invention;

[0039] Figure 5 for Figure 4 Side view;

[0040] Figure 6 This is a schematic diagram showing the support structure of the maintenance fixture in a disconnected state according to an embodiment of the present invention;

[0041] Figure 7 for Figure 6 Side view.

[0042] Explanation of key figure labels:

[0043] Electrical cabinet 100; cabinet body 10; electrical module 11; door frame 12; installation channel 13; maintenance tool 200; support assembly 20; support base 21; guide rail 211; guide rod 212; fixing unit 22; fixing group 221; fixing block 222; guide part 223; limiting part 224; first fixing block 225; first guide part 226; first limiting part 227; support surface 228; support structure 01; movable unit 23; movable group 231; movable block 232; connecting part 24; socket 241; screw 242; lifting drive component 30; first transmission part 31; second transmission part 32; drive assembly 40; drive component 41; drive motor 411; lead screw 412; sliding component 42; sliding block 421; sliding part 4211; pull rod 422; push part 423. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are preferred embodiments of the present invention and should not be considered as excluding other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0045] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and accompanying drawings of this invention is for distinguishing different objects and not for describing a specific order.

[0046] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this invention, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing the invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific scope of protection of this invention.

[0047] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this invention should be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection by other means or components.

[0048] In the claims, description and accompanying drawings of this invention, the terms "comprising," "having," and variations thereof are used to mean "including but not limited to."

[0049] See Figure 1-3 , Figure 1-3 A maintenance fixture 200 for an electrical module 11 is shown, which is used to install onto the carrier of a transport component (not shown) and to assist in the transfer of the electrical module 11 between the mounting channel 13 of the electrical cabinet 100 and the maintenance fixture 200.

[0050] In this embodiment, a forklift is preferably used as the transport component. Its load-bearing part includes at least two parallel and spaced forks, which are quickly assembled by plugging and locking with the connection part 24 of the maintenance fixture 200. It should be noted that the transport component is not limited to a forklift; any mobile vehicle with three-dimensional motion capability (horizontal translation + vertical lifting) and capable of carrying a load is within the scope of protection of this patent. For example, the transport component can be an AGV trolley with a hydraulic lifting platform (the load-bearing part is a rectangular platform, connected to the fixture by an electromagnetic lock) or a rail-mounted transfer vehicle (the load-bearing part is equipped with a servo lifting mechanism for precise positioning along a preset track).

[0051] See Figure 1-3 The electrical cabinet 100 includes a cabinet body 10 and multiple electrical modules 11. The cabinet body 10 has mounting channels 13 arranged in a rectangular array. A door frame 12 is located at the front end of the cabinet body 10. The entrance end of the mounting channels 13, extending along a first direction, is close to the door frame 12. The mounting channels 13 have support portions extending along the first direction and adapted to support the electrical modules 11. In this embodiment, the support portions have two guide rails extending along a second direction perpendicular to the first direction. The electrical modules 11 are cuboid in shape and are fixed inside the mounting channels 13 (such as energy storage battery packs, power supply units, energy storage converter modules, etc.). In this embodiment, the first direction is also the length direction of the mounting channels 13, and the width direction of the mounting channels 13 is the second direction. In this embodiment, both the first and second directions are horizontal. In practical applications, the second direction is the length direction of the electrical cabinet 100, and the first direction is the width direction of the electrical cabinet 100. When the electrical cabinet 100 is used, multiple electrical cabinets 100 are generally arranged at intervals along the second direction. Therefore, when the electrical module 11 needs maintenance, if the space between adjacent electrical cabinets 100 is narrow, the transport parts can only enter the space between adjacent electrical cabinets 100 along the second direction.

[0052] See Figure 4-7 The maintenance fixture 200 includes a support component 20, a lifting drive component 30, and a drive component 40.

[0053] The support assembly 20 is provided with a connecting part 24 detachably connected to the support part, a positioning structure, and a support structure 01. The positioning structure is used to limit the engagement with the cabinet body 10 of the electrical cabinet 100 when the support part is located at a predetermined position in front of the electrical cabinet 100. The support structure 01 is configured to dock with the corresponding installation channel 13 to form a slide extending along the first direction when the positioning structure is in the limited engagement state with the cabinet body 10. "Dock" means that the support part and the support structure 01 form a coordinated matching relationship through spatial position and functional plane, so that the electrical module 11 can move relative to the support part and the support structure 01. It allows for a physical gap between the support part and the support structure 01. The physical gap must be set so that when the electrical module 11 passes through the gap section, its center of gravity projection is always located on the support part or the support structure 01.

[0054] Specifically, the support component 20 includes a support base 21, a fixed unit 22, and a movable unit 23.

[0055] See Figure 4-5 The support base 21 is a drawer-type frame structure, wherein the connecting part 24 is located at the bottom of the support base 21 and is provided with at least two insertion holes 241 extending and penetrating along the second direction at intervals along the first direction; the connecting part 24 is also provided with at least one screw 242 corresponding to each insertion hole 241, the screw 242 is screwed to the hole wall of the insertion hole 241 and is adapted to be inserted into the insertion hole 241 in a direction perpendicular to the second direction, the screw 242 is configured to abut against the fork arm when the fork arm is inserted into the insertion hole 241, so that the fork arm is fixed in the insertion hole 241. In this embodiment, there are two insertion holes 241, the insertion holes 241 are rectangular through holes adapted to the shape of the fork arm, and each insertion hole 241 is provided with two screws 242, the screws 242 penetrating through the hole wall of the insertion hole 241 along the first direction.

[0056] In this embodiment, see Figure 4 The support base 21 is also provided with at least one guide slide rail 211 extending along the first direction. The guide slide rail 211 is located in the middle of the support base 21 along the second direction. In this embodiment, there are two guide slide rails 211, and the two guide slide rails 211 are arranged at intervals along the second direction.

[0057] The fixed unit 22 is fixedly connected to the support base 21, and the movable unit 23 is connected to the lifting drive component 30; the fixed unit 22 and the movable unit 23 are arranged along the first direction to form the support structure 01.

[0058] In this embodiment, the support structure 01 can switch between a continuous state and a disconnected state through the movement of the movable unit 23. Specifically, see [link to documentation]. Figure 4The fixing unit 22 includes at least two fixing groups 221 spaced apart along a first direction. Each fixing group 221 includes two fixing blocks 222 distributed on both sides of the support base 21 along a second direction. The movable unit 23 includes at least one movable group 231. Each movable group 231 includes two movable blocks 232 distributed on both sides of the support base 21 along a second direction. In this embodiment, the number of movable groups 231 is at least two, and each movable group 231 is spaced apart along the first direction. The fixing blocks 222 and movable blocks 232 are alternately arranged along the first direction, and the movable blocks 232 are always located between two fixing blocks 222 along the first direction. Both the fixing blocks 222 and the movable blocks 232 are provided with support surfaces 228 extending along the first direction. When the support surface 228 of the movable block 232 is flush with the support surface 228 of the fixing block 222, such as Figure 4-5 The support structure 01 has a continuous support surface 228, reaching a continuous state. When the support surface 228 of the movable block 232 is lower than the support surface 228 of the fixed block 222, such as... Figure 6-7 If the support structure 01 does not have a disconnected support surface 228, it reaches the disconnected state.

[0059] Figure 4 In this embodiment, there are two active groups 231 and three fixed groups 221. The fixed blocks 222 are L-shaped guide rail structures. Each fixed block 222 has an integrally connected guide portion 223 and a limiting portion 224. The guide portion 223 is adapted to support the electrical module 11, and the limiting portion 224 is used to restrict the movement of the electrical module 11 along the second direction. In this embodiment, the lower part of the limiting portion 224 is integrally connected to the guide portion 223, while the upper part of the limiting portion 224 extends outward at an angle. Therefore, the upper part of the limiting portion 224 can guide the electrical module 11 as it is inserted into the support structure 01 from top to bottom, while the lower part of the limiting portion 224 can limit the outward movement of the electrical module 11 along the second direction.

[0060] See Figure 5-6 The fixing block 222 near the front end of the cabinet 10 is defined as the first fixing block 225, and the guide portion 223 and the limiting portion 224 of the first fixing block 225 are respectively the first guide portion 226 and the first limiting portion 227; see also Figure 2 The first guide portion 226 protrudes from the first limiting portion 227 along a first direction and is adapted to be inserted into the door frame 12 to mate with the mounting channel 13. The two first guide portions 226 are also adapted to abut against the opposite sides of the door frame 12 along a second direction; the first limiting portion 227 is adapted to abut against the front end of the door frame 12 along the first direction; the two first guide portions 226 and the two first limiting portions 227 cooperate to form a positioning structure. In practical applications, plastic can be wrapped around the positions where the first limiting portion 227 and the first guide portion 226 abut against the door frame 12 for cushioning to reduce scratches on the door frame 12. See also Figure 5The support base 21 is provided with a guide rod 212 extending vertically on the outer side of the fixing block 222 corresponding to the middle part along the first direction.

[0061] The lifting drive component 30 is mounted on the support assembly 20. In this embodiment, the lifting drive component 30 is mounted on the support base 21. See [reference needed]. Figure 5 and Figure 7 The lifting drive unit 30 is provided with a drive part (not shown in the figure, the drive part can be a motor), a first transmission part 31 and a second transmission part 32 on each side of the support base 21 along the second direction. The fixed end of the drive part is fixed to the support base 21, and the output end of the drive part (such as an electric push rod telescopic rod) provides linear driving force and is linked with the first transmission part 31. In this embodiment, the first transmission part 31 is a deformable parallelogram structure (such as a four-bar linkage system). The second transmission part 32 is a linkage block structure extending along the first direction. The linkage block is constrained by a linear guide pair (the guide rod 212 and bushing of the support base 21) and is fixed to two movable blocks 232 located on the same side of the support base 21 along the second direction. The second transmission part 32 is fixed to the top of the first transmission part 31, that is, fixed to the vertex of the deformable parallelogram. Therefore, the drive of the drive part can drive the first transmission part 31 to deform, thereby driving the second transmission part 32 to rise and fall, and also driving the movable blocks 232 to rise and fall. It should be noted that the parallelogram deformation drive in this embodiment is only a preferred solution, and the implementation of the lifting drive component 30 is not limited to this. Depending on the requirements of the engineering scenario, alternative options include a hydraulic cylinder direct drive structure (hydraulic piston rod directly connected to movable block 232), a screw lifting mechanism (servo motor drives movable block 232 through ball screw), or a scissor linkage mechanism (horizontal push rod unfolds scissor arm to achieve vertical displacement), etc.

[0062] In this embodiment, the lifting drive 30 drives the movable unit 23 to move between a raised position and a lowered position, so that the support structure 01 switches between a continuous state and a disconnected state. The support structure 01 is adapted to dock with the mounting channel 13 in the continuous state. In the continuous state, the movable unit 23 is located in the raised position, and in the raised position, the movable unit 23 is flush with the fixed unit 22 to form a continuous support surface 228 combination of the support structure 01. In the disconnected state, the movable unit 23 is located in the lowered position, and in the lowered position, the movable unit 23 is lower than the fixed unit 22 so that the support structure 01 forms a clearance space suitable for the insertion of the load-bearing part of another transport component. In this embodiment, the lifting drive 30 drives the movable block 232 to move between the raised position and the lowered position. When the movable block 232 is in the lowered position, the space above the movable block 232 forms a clearance area, and each clearance area forms a clearance space.

[0063] See Figure 4The drive assembly 40 is mounted on the support assembly 20 and is used to drive the electrical module 11 to move relative to each other along the slide between the mounting channel 13 and the support structure 01. In this embodiment, the drive assembly 40 includes a drive member 41 and a sliding member 42. The drive member 41 includes a drive motor 411 and a lead screw 412 connected to the output end of the drive motor 411. The fixed end of the drive motor 411 is fixed to the support base 21. The lead screw 412 extends along a first direction and is rotatably mounted on the support base 21 at both ends. The lead screw 412 is located between two guide rails 211 along a second direction. In this embodiment, the fixed end of the drive motor 411 is located at the end of the support base 21 away from the door frame 12 along the first direction. The end of the lead screw 412 near the drive motor 411 is fixed to a gear. The output end of the drive motor 411 drives the gear fixed to the lead screw 412 to rotate through the gear and chain, thereby driving the lead screw 412 to rotate.

[0064] See Figure 4 The sliding member 42 has sliding portions 4211, which are equal in number to and correspond one-to-one with the guide rails 211, and are slidably mounted on the guide rails 211. The sliding member 42 also has a pushing portion 423 suitable for connection with the electrical module 11. Specifically, the sliding member 42 includes a sliding block 421 and a pull rod 422 screwed to the sliding block 421 and extending along a first direction. The sliding block 421 is screwed to a lead screw 412. Two sliding portions 4211 are formed at both ends of the sliding block 421 along a second direction. The sliding portions 4211 are slidably mounted on the guide rails 211. 1. The sliding part 4211 and the guide rail 211 can be limited in the second direction and the vertical direction by cooperating with the dovetail groove structure. In this embodiment, the bottom end of the sliding block 421 along the middle of the second direction is screwed to the lead screw 412, the upper end of the sliding block 421 is screwed to the pull rod 422, and the pushing part 423 is provided at the end of the pull rod 422. In this embodiment, the pushing part 423 is a plate-shaped structure perpendicular to the first direction. The driving member 41 is adapted to drive the sliding member 42 to slide on the guide rail 211 to drive the electrical module 11 to slide along the slide. In actual use, the bottom of the electrical module 11 is usually provided with a base support. Due to the process, the lower surface of the base support will inevitably form a groove. The pushing part 423 can push the electrical module 11 from the support structure 01 to the installation channel 13 by abutting the outer surface of the base support of the electrical module 11 from the outside to the inside along the first direction, or push the electrical module 11 from the installation channel 13 to the support structure 01 by abutting the inner surface (groove) of the base support of the electrical module 11 from the inside to the outside along the first direction.

[0065] It should be understood that when a forklift is used for transporting the electrical module 11, the bottom of the electrical module 11 is usually provided with a plug-in hole that is compatible with the forklift's forks to facilitate the transport of the electrical module 11. The plug-in hole is generally formed on a pallet that can be detached from the electrical module 11.

[0066] When maintaining or replacing electrical module 11, the working process is as follows:

[0067] In the initial state, the support structure 01 of the maintenance fixture 200 is in a continuous state; the fork arm of the transport component (forklift A) is inserted into the insertion hole 241 of the connecting part 24 of the maintenance fixture 200 along the second direction, and the screw 242 is tightened to fix the fork arm in the insertion hole 241, and the maintenance fixture 200 is fixed relative to the transport component.

[0068] Forklift A moves maintenance fixture 200 to a predetermined position in front of electrical cabinet 100 (corresponding to target installation channel 13), that is, the load-bearing part of the transported part reaches the predetermined position, both first guide parts 226 are inserted into door frame 12 and respectively abut against the two sides of door frame 12 opposite to each other in the second direction, and the first limiting part 227 abuts against the front end of door frame 12 in the first direction, so that maintenance fixture 200 is fixed relative to cabinet 10, and support structure 01 connects with installation channel 13 and forms a slide extending in the first direction;

[0069] The driving component 41 drives the pushing part 423 to move in the direction of the first direction toward the mounting channel 13 and causes the pushing part 423 to abut against the electrical module 11 from the inside to the outside in the first direction. Then the driving motor 411 works and causes the lead screw 412 to rotate, driving the sliding block 421 to slide along the guide rail 211. The pushing part 423 pulls the electrical module 11 out of the mounting channel 13 to the support structure 01.

[0070] When the electrical module 11 is fully positioned on the support structure 01, the limiting part 224 limits the electrical module 11 along the second direction, and the lifting drive 30 drives the movable block 232 to move to the lowering position, so that the support structure 01 switches to the disconnected state.

[0071] Forklift B approaches maintenance fixture 200 from the other side of the second direction. The forklift B inserts its fork arm into the clearance area above the movable block 232 and removes the electrical module 11 to be maintained from maintenance fixture 200 (the tray of electrical module 11 is generally provided with a plug hole that mates with the fork arm, and the forklift B's fork arm can be directly inserted into the plug hole to transport electrical module 11).

[0072] After forklift B moves away, forklift C, carrying the new electrical module 11 or forklift B that has put down the electrical module 11 to be maintained and installed the new electrical module 11, approaches the maintenance fixture 200 on the other side of the second direction. The fork arm of forklift C inserts into the clearance area above the movable block 232 to place the new electrical module 11 on the support structure 01. Then, forklift B or C withdraws, wherein the upper part of the limiting part 224 guides the electrical module 11.

[0073] Subsequently, the lifting drive component 30 raises the movable block 232 and causes the support structure 01 to switch to a continuous state;

[0074] Then the drive motor 411 reverses, causing the lead screw 412 to reverse, and the pusher 423 abuts against the front end of the electrical module 11 from the outside to the inside along the first direction and pushes the electrical module 11 from the support structure 01 into the installation channel 13.

[0075] After the electrical module 11 is maintained or replaced, the maintenance fixture 200 can be moved away from the electrical cabinet 100 in the first direction by the transport component, so that the first guide part 226 can be removed from the door frame 12. Then the transport component can move the maintenance fixture 200 away from the electrical cabinet 100 in the second direction. When it is necessary to disassemble the maintenance fixture 200, the screw 242 can be loosened and the forklift fork arm can be removed from the socket 241.

[0076] In this embodiment, the maintenance fixture 200 is installed behind the carrier of the transport component (such as a forklift), becoming a temporary support platform for the transfer of the electrical module 11. When the space between adjacent electrical cabinets 100 is small, and maintenance or replacement of the electrical module 11 is required, the transport component can move along the width direction of the installation channel 13. In actual operation, the carrier of the transport component can be controlled to move the maintenance fixture 200 to the position of the installation channel 13 that needs maintenance, that is, the carrier is located at a predetermined position in front of the electrical cabinet 100. Through the positioning structure of the support component 20 and the cabinet body 10 of the electrical cabinet 100, the maintenance fixture 200 can be positioned relative to the cabinet body. The electrical module 11 is fixed in position 10 and the support structure 01 is aligned with the corresponding mounting channel 13 to form a slide extending in the first direction. Then, the drive assembly 40 is controlled to move the electrical module 11 along the slide from the mounting channel 13 to the support structure 01, allowing the electrical module 11 to be pulled out of the mounting channel 13 of the cabinet 10 and supported by the support structure 01. No contact with the electrical module 11 is required during the extraction process. Similarly, after maintenance or replacement of the electrical module 11, the drive assembly 40 can be controlled to move the electrical module 11 along the slide from the support structure 01 to the mounting channel 13, also without manual contact with the electrical module 11. This reduces the risk of the electrical module 11 falling during manual handling or support, especially reducing the risk of needing to elevate the electrical module 11 for manual handling when it is high up, and the maintenance difficulty of manually pulling out the electrical module 11 when it is heavy.

[0077] The connecting part 24 is detachably connected to the bearing part, allowing the maintenance tool 200 to be separated from the transport parts, which is more conducive to the transportation of the maintenance tool 200. The positioning structure ensures the docking of the support structure 01 and the installation channel 13. The docking of the support structure 01 and the installation channel 13 forms a slide extending along the first direction, which is conducive to the smooth transition of the electrical module 11 between the installation channel 13 and the support structure 01, and avoids the suspended section when the electrical module 11 is manually supported.

[0078] Therefore, this technical solution uses the maintenance fixture 200 as an intermediary platform to position the structure and cabinet 10, provide continuous support for the slide rail, and provide mechanical drive for the drive component 40, thereby reducing the problems of low efficiency, high risk, and poor space adaptability of manual operation during the maintenance or replacement of the electrical module 11.

[0079] In this embodiment, a key improvement lies in the switchable state design of the support structure 01, effectively solving the problem of installing and removing the electrical module 11 due to the lack of fixed constraints after the maintenance fixture 200 is removed from the electrical cabinet 100. When the electrical module 11 is transferred from the installation channel 13 to the support structure 01, if the electrical module 11 is directly removed by the drive component 40, the maintenance fixture 200 will shift due to the lack of fixed point constraints. The frictional resistance between the electrical module 11 and the support structure 01 will make it difficult for the electrical module 11 to completely detach from the support structure 01, requiring manual pushing to remove it. Similarly, when a new electrical module 11 is placed on the support structure 01 of the maintenance fixture 200, friction will also prevent the electrical module 11 from being fully positioned, often resulting in a situation where part of the electrical module 11 is suspended outside the support structure 01. This positioning deviation will seriously interfere with the positioning structure of the subsequent fixture and the limiting cooperation of the cabinet 10, causing the support structure 01 to fail to accurately align with the installation channel 13 to form a slide, significantly increasing the maintenance difficulty and operational risk.

[0080] This solution controls the movable unit 23 to switch between raised and lowered positions via the lifting drive component 30, allowing the support structure 01 to be in a continuous or disconnected state. In the disconnected state, the movable unit 23 moves down to create a dedicated clearance space, allowing the load-bearing part of another transport component to directly insert into the clearance space of the maintenance fixture 200. Therefore, the electrical module 11 to be maintained can be completely removed from the maintenance fixture 200 by the second transport component, and a new electrical module 11 can also be precisely placed on the support structure 01 by the second transport component, completely avoiding the manual loading and unloading of modules. Furthermore, after the electrical module 11 is loaded, the movable unit 23 is raised to the continuous state, allowing the bottom surface of the electrical module 11 to automatically fall onto the complete support surface 228, reducing positioning deviation and ensuring the positioning structure and the cabinet 10 are properly matched when the maintenance fixture 200 is re-attached to the cabinet 10. In addition, there is no relative sliding friction between the electrical module 11 and the maintenance fixture 200 during the entire loading and unloading process, reducing the need for manual pushing from a physical mechanism perspective.

[0081] Even better, this technical solution offers significant advantages for maintaining heavy electrical modules 11. When the module weighs over 500kg, traditional manual pushing and pulling operations can easily lead to muscle strains or falls. This solution, through a mechanized process of direct handling with a second transporter, greatly reduces the operational risks of heavy electrical modules 11. Simultaneously, it compresses the original process requiring four manual interventions (unloading the old module, installing the new module, position calibration, and module pushing and pulling) into a zero-contact operation, significantly improving maintenance efficiency. This collaborative operation mode, involving the switching of the support structure's 01 state and the transporter, reduces the inherent defects of low efficiency and high risk in the prior art, achieving an inherently safer transformation in the maintenance of electrical modules 11. In situations where the space between adjacent electrical cabinets 100 is limited, the first and second transport components can be deployed on both sides of the support assembly 20 along the second direction. The first transport component is fixed on one side, providing stable support and maintaining the position of the maintenance fixture 200, while the second transport component is located on the other side and is dedicated to performing the replacement and transportation of the electrical module 11. Through the coordinated operation of the two transport components (the first ensures structural stability, and the second performs dynamic tasks), combined with the switchable state design of the support structure of the maintenance fixture 200, the maintenance difficulties caused by the excessive weight of the electrical module 11 and the limited space between cabinets are effectively solved, enabling convenient and safe module replacement.

[0082] In this embodiment, each movable group 231 includes movable blocks 232 distributed on both sides of the support base 21 along the second direction, so that the maintenance fixture 200 can form clearance space on both sides along the second direction, allowing the bearing part of the second transport component to be inserted into the clearance space from either side of the maintenance fixture 200 along the second direction. This advantage is particularly prominent when the space between adjacent electrical cabinets 100 is narrow, allowing the transport component to be operated nearby without adjusting its direction, thus shortening the operation path; the fixed block 222 and the movable block 232 are alternately arranged along the first direction. Assume that the movable block 232 is always located between the two fixed blocks 222 along the first direction, so that the strength of the support structure 01 is balanced, and the position of the clearance space is located in the middle of the support structure 01 along the first direction. The bearing part of the other transport component also supports the electrical module 11 in the middle of the first direction, which is more conducive to the smooth transportation of the electrical module 11. The fixed block 222 can also limit the displacement of the movable block 232 along the first direction to prevent the movable block 232 from shifting. When the support structure 01 is damaged, the movable block 232 or the fixed block 222 can be replaced independently.

[0083] In this embodiment, the number of movable groups 231 is at least two, and each movable group 231 is arranged at intervals along the first direction. Therefore, at least two clearance areas arranged along the first direction can be formed, which is more conducive to the insertion of the bearing part of another transport component into the clearance area and to multiple points of contact with the electrical module 11 in the first direction, thereby making it more conducive to the smooth transportation of the electrical module 11.

[0084] In this embodiment, when the transport component is a forklift and the load-bearing part includes at least two parallel and spaced fork arms, the inner diameter of the insertion hole 241 is usually larger than the outer diameter of the fork arm to facilitate insertion of the fork arm into the insertion hole 241. The radial pressing structure driven by the screw 242 can apply a top-resisting force to the side of the fork arm, so that the fork arm is fixed in the insertion hole 241, ensuring that the support structure 01 and the installation channel 13 always maintain a precise alignment, providing a smooth transition path for the electrical module 11, and reducing the risk of loosening or falling due to vibration of the electrical module 11. When the maintenance fixture 200 needs to be removed from the transport component, it is only necessary to rotate the screw 242 in the opposite direction to make the fork arm exit the insertion hole 241, thereby improving the efficiency of disassembly and assembly of the maintenance fixture 200 and the transport component.

[0085] The socket 241 extends and penetrates along the second direction, forming an open interface on both sides of the maintenance fixture 200. Therefore, the fork arm can engage with the socket 241 from either side of the maintenance fixture 200 along the second direction, reducing the path of the transport component. The second transport component can engage with the maintenance fixture 200 from the other side of the maintenance fixture 200 along the second direction, thereby enabling the transfer of the electrical module 11 from the installation channel 13 to the support structure 01 and from the support structure 01 to the load-bearing part of another transport component in a confined space, and vice versa.

[0086] In this embodiment, since the cabinet 10 will also be equipped with a cabinet door, a gap will inevitably be formed between the entrance end of the installation channel 13 and the door frame 12. The first guide part 226 is inserted into the door frame 12 and docks with the installation channel 13, which can shorten the physical gap between the support part and the support structure 01, which is conducive to the smooth sliding of the electrical module 11.

[0087] In this embodiment, the two first guide portions 226 are also adapted to abut against the two sides of the door frame 12 opposite to each other in the second direction; the first limiting portion 227 is adapted to abut against the front end of the door frame 12 in the first direction, so that the maintenance tool 200 and the cabinet 10 are limited in the first and second directions. The two first guide portions 226 and the two first limiting portions 227 cooperate to form a positioning structure, that is, the positioning structure can realize the limiting cooperation between the maintenance tool 200 and the cabinet 10 in the first and second directions, while the limiting of the maintenance tool 200 in the height direction is completed by the transport component. Therefore, the maintenance tool 200 is fixed relative to the cabinet 10.

[0088] In this embodiment, the guide rail 211, in conjunction with the formation of the slide rail, ensures that the electrical module 11 slides smoothly.

[0089] In this embodiment, since there is a gap between the electrical module 11 and the door frame 12 when the electrical module 11 is located in the installation channel 13, the pushing part 423 needs to extend into the installation channel 13. However, the gap between the front end of the electrical module 11 and the door frame 12 is not consistent in different electrical cabinets 100. The pull rod 422 is screwed to the sliding block 421 and extends along the first direction. The pushing part 423 is located at the end of the pull rod 422. Therefore, the extension length of the pushing part 423 can be adjusted by adjusting the extension length of the pull rod 422, so that it can be applied to electrical cabinets 100 of different specifications.

[0090] In this embodiment, the lead screw 412 extends along the first direction and is fixed to the support base 21 with both ends rotatable. The sliding block 421 is screwed to the lead screw. Therefore, the rotation of the lead screw can be converted into the linear movement of the sliding block 421. The structure is simple and the cost is low.

[0091] This invention also provides a multi-cabinet system (not shown in the figure), including at least two electrical cabinets 100 spaced apart along a first direction and a maintenance fixture 200 for the electrical module 11 as described above. The length direction of the electrical module 11 is the first direction, its length-to-width ratio is greater than 1.5, and its weight is greater than 500 kg. Since the electrical module 11 is relatively long and weighs more than 500 kg, it is impossible to pull it out manually. The maintenance fixture 200 can be used to maintain or replace the electrical module 11, making maintenance of the heavy and long electrical module 11 more convenient.

[0092] The foregoing description of the specifications and embodiments is intended to explain the scope of protection of this invention, but does not constitute a limitation on the scope of protection of this invention. Modifications, equivalent substitutions, or other improvements to the embodiments of this invention or a portion thereof that can be obtained by those skilled in the art through logical analysis, reasoning, or limited experimentation, based on the teachings of this invention or the foregoing embodiments, in conjunction with common knowledge, general technical knowledge, and / or existing technology, should all be included within the scope of protection of this invention.

Claims

1. A maintenance fixture (200) for an electrical module (11), for mounting to a carrier of a transport component and assisting in the transfer of the electrical module (11) between an installation channel (13) of an electrical cabinet (100) and the maintenance fixture (200), said installation channel (13) having a support extending in a first direction and adapted to support the electrical module (11), characterized in that, The maintenance fixture (200) includes The support assembly (20) is provided with a connecting part (24) detachably connected to the support part, a positioning structure and a support structure (01). The positioning structure is used to limit the engagement with the cabinet body (10) of the electrical cabinet (100) when the support part is located at a predetermined position in front of the electrical cabinet (100). The support structure (01) is configured to dock with the support part of the corresponding mounting channel (13) to form a slide extending in a first direction when the positioning structure is in the limit engagement with the cabinet body (10). and A drive assembly (40), which is disposed on the support assembly (20), is used to drive the electrical module (11) to move relative to the mounting channel (13) and the support structure (01) along a slide.

2. The maintenance fixture (200) for an electrical module (11) as described in claim 1, characterized in that, It also includes a lifting drive (30) disposed on the support assembly (20); The support assembly (20) includes a support base (21), a fixed unit (22) and a movable unit (23). The fixed unit (22) is fixedly connected to the support base (21), and the movable unit (23) is connected to the lifting drive component (30). The fixed unit (22) and the movable unit (23) are arranged along the first direction to form the support structure (01); The lifting drive (30) drives the movable unit (23) to move between a raised position and a lowered position to switch the support structure (01) between a continuous state and a disconnected state; the support structure (01) is adapted to dock with the installation channel (13) in the continuous state; In the continuous state, the movable unit (23) is located in the raised position, and in the raised position, the movable unit (23) and the fixed unit (22) are joined flush to make the support structure (01) form a continuous support surface (228) combination; In the disconnected state, the movable unit (23) is located in the lowered position, in which the movable unit (23) is lower than the fixed unit (22) so that the support structure (01) forms a clearance space suitable for the insertion of the bearing portion of another transport component.

3. A maintenance fixture (200) for an electrical module (11) as described in claim 2, characterized in that, The fixing unit (22) includes at least two fixing groups (221) arranged at intervals along the first direction, and each fixing group (221) includes two fixing blocks (222) distributed on both sides of the support base (21) along a second direction perpendicular to the first direction; The active unit (23) includes at least one active group (231), and each active group (231) includes two active blocks (232) distributed on both sides of the support base (21) along the second direction; The fixed block (222) and the movable block (232) are arranged alternately along the first direction, and the movable block (232) is always located between the two fixed blocks (222) along the first direction; The lifting drive (30) drives the movable block (232) to move between the raised position and the lowered position. When the movable block (232) is in the lowered position, the space above the movable block (232) forms a clearance area, and each clearance area forms the clearance space.

4. The maintenance fixture (200) for an electrical module (11) as described in claim 3, characterized in that, The number of activity groups (231) is at least two, and each activity group (231) is arranged at intervals along the first direction.

5. A maintenance fixture (200) for an electrical module (11) as described in claim 4, characterized in that, The transport component is a forklift; the load-bearing part includes at least two parallel and spaced-apart forks; The connecting part (24) is located at the bottom of the support base (21) and is provided with at least two insertion holes (241) that extend and penetrate along the second direction at intervals along the first direction; the connecting part (24) is also provided with at least one screw (242) for each insertion hole (241), the screw (242) is screwed to the hole wall of the insertion hole (241) and is adapted to be inserted into the insertion hole (241) in a direction perpendicular to the second direction, the screw (242) is configured to abut against the fork arm when the fork arm is inserted into the insertion hole (241) so that the fork arm is fixed in the insertion hole (241).

6. A maintenance fixture (200) for an electrical module (11) as described in claim 3, characterized in that, The front end of the cabinet (10) of the electrical cabinet (100) is provided with a door frame (12), and the entrance end of the installation channel (13) is close to the door frame (12); each fixing block (222) is provided with a guide part (223) and a limiting part (224) connected together, the guide part (223) is used to support the electrical module (11), and the limiting part (224) is used to restrict the movement of the electrical module (11) in the second direction; The fixing block (222) near the front end of the cabinet (10) is defined as the first fixing block (225), and the guide part (223) and the limiting part (224) of the first fixing block (225) are respectively the first guide part (226) and the first limiting part (227); The first guide portion (226) protrudes from the first limiting portion (227) in a first direction and is adapted to be inserted into the door frame (12) to dock with the support portion of the installation channel (13).

7. A maintenance fixture (200) for an electrical module (11) as described in claim 6, characterized in that, The two first guide portions (226) are also adapted to abut against the two sides of the door frame (12) opposite each other in the second direction; the first limiting portion (227) is adapted to abut against the front end of the door frame (12) in the first direction; the two first guide portions (226) and the two first limiting portions (227) cooperate to form the positioning structure.

8. A maintenance fixture (200) for an electrical module (11) as described in any one of claims 2-7, characterized in that, The support base (21) is also provided with at least one guide rail (211) extending along a first direction. The drive assembly (40) includes a drive member (41) and a slider (42). The slider (42) is provided with a sliding portion (4211) that is equal in number to the guide rail (211) and slides on the guide rail (211) in a one-to-one correspondence. The slider (42) is also provided with a push portion (423) suitable for connection with the electrical module (11). The drive member (41) is suitable for driving the slider (42) to slide on the guide rail (211) to drive the electrical module (11) to slide along the slide.

9. A maintenance fixture (200) for an electrical module (11) as described in claim 8, characterized in that, The sliding member (42) includes a sliding block (421) and a pull rod (422) screwed to the sliding block (421) and extending along a first direction. The sliding block (421) is provided with the sliding part (4211), and the pushing part (423) is provided at the end of the pull rod (422). The driving member (41) includes a driving motor (411) and a lead screw (412) connected to the output end of the driving motor (411). The fixed end of the driving motor (411) is fixed to the support base (21). The lead screw (412) extends along the first direction and is rotatably mounted on the support base (21). The sliding block (421) is screwed to the lead screw (412).

10. A multi-cabinet system, characterized in that, The device includes at least two electrical cabinets (100) spaced apart along a first direction and a maintenance fixture (200) for electrical modules (11) as described in any one of claims 1-9. The electrical cabinet (100) includes a cabinet body (10) and a plurality of electrical modules (11). The cabinet body (10) is provided with a plurality of installation channels (13) extending along the first direction. The installation channels (13) are provided with support portions suitable for supporting the electrical modules (11). The electrical modules (11) are fixed in the installation channels (13). The length direction of the electrical modules (11) is the first direction, its length-to-width ratio is greater than 1.5, and its weight is greater than 500 kg.

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