Modular recloser and manufacturing method therefor

Abstract

The present invention relates to a modular recloser and a manufacturing method therefor. Solid encapsulated modules are fixed on a box body structure; driving apparatuses are provided in the box body structure; and the driving apparatuses drive conducting structures in the solid encapsulated modules for conduction or disconnection. In the present invention, highly modularizing original components and parts of the recloser to improve the production and test efficiency greatly shortens the assembly time during production, accelerates the test efficiency, and reduces items of centralized testing, thus making the whole production process of reclosers simpler and more efficient. The present invention solves the technical problems that in the prior art, recloser mechanisms are not provided with control systems and only rely on mechanical apparatuses to protect lines of power distribution networks, and the reclosers have complicated structures and involve complex assembly processes and low installation efficiency, and thus cannot undergo centralized testing.

Description

Modular recloser and preparation method thereof Technical Field

[0001] Embodiments of the present invention relate to a recloser in the field of power distribution network and a method for installing and preparing the same, and in particular to a modular recloser and a method for preparing the same. Background Art

[0002] As an indispensable device in the distribution network, the outdoor pole-mounted recloser operates when a fault occurs in the distribution network line, thereby protecting the distribution network line. At the same time, it can also provide timely feedback on information such as distribution network line faults, enabling the distribution network line to operate efficiently.

[0003] In the existing technology, the recloser mechanism has no control system and can only rely on mechanical devices to protect the distribution network lines. At the same time, the structure of the recloser is relatively complex, the assembly process is relatively complicated, the installation efficiency is relatively low, and there is no way to perform centralized testing.

[0004] Summary of the Invention

[0005] The purpose of the embodiments of the present invention is to provide a modular recloser and its preparation method that can improve the efficiency of production testing, reduce the assembly time in production, improve testing efficiency, and reduce the items of centralized testing.

[0006] In order to achieve the above objectives, the embodiments of the present invention provide a modular recloser, comprising:

[0007] Box structure;

[0008] A sealing module is fixed on top of the box structure;

[0009] A driving device is provided in the box structure; the driving device drives the conductive structure in the solid-sealed module to conduct or disconnect.

[0010] Furthermore, in the modular recloser of the present invention, the driving board, the driving fixing board, the indicator, the switch, the current protection board, the counter, the voltage calibration board, the capacitor fixing board, and the capacitor are fixed in the box structure respectively.

[0011] Furthermore, in the modular recloser of the present invention, the input end of the driving board is connected to the output end of the voltage calibration board; the first input end of the voltage calibration board is connected to the output end of the first capacitor and the input end of the second capacitor; the input end of the first capacitor is connected to a power supply; the output end of the second capacitor is short-circuited and then grounded;

[0012] The second input end of the voltage calibration board is connected to the output end of the third capacitor and the input end of the fourth capacitor; the input end of the third capacitor is connected to a power supply; the output end of the fourth capacitor is short-circuited and then grounded;

[0013] A control switch is provided on a power supply between the first capacitor and the third capacitor;

[0014] One end of the current transformer is connected to one side of the current protection board; the output end of the current protection board is connected to the input end of the driving board;

[0015] Input signals of the circuit open controller and the short circuit controller are inputted simultaneously to the input end of the driving board;

[0016] Outputting a gas low output normally open signal and a manual lock output normally open signal at the input end of the driving board;

[0017] Two relay output signals are also output at the input end of the driving board.

[0018] Furthermore, in the modular recloser of the present invention, the box structure further includes:

[0019] A box body, wherein the box body is arranged in the box body structure;

[0020] a bottom plate, fixed below the box body;

[0021] A foot, fixed below the bottom plate;

[0022] A grounding stud is fixed below the bottom plate.

[0023] Furthermore, in the modular recloser of the present invention, a plurality of the sealed modules are fixed above the box structure.

[0024] Furthermore, in the modular recloser of the present invention, the sealing module further includes:

[0025] A connecting rod is provided in the middle of the sealing module;

[0026] A first sealing ring is placed on the connecting rod;

[0027] Induction network, the connecting rod is inserted into the induction network;

[0028] A vacuum bottle is fixed to the vacuum bottle on the connecting rod by bolts;

[0029] A copper head is placed on the bottom of the vacuum bottle;

[0030] A movable end base is fixed on the bottom of the vacuum bottle;

[0031] A first current transformer is inserted into the movable end base;

[0032] Shielding net, which is put on the copper head;

[0033] The connecting rod, the first sealing ring, the induction net, the vacuum bottle, the copper head, the moving end base, the first current transformer, and the shielding net are connected to form a first component;

[0034] A rubber seal is formed on the outer side of the first component to form a first sealing component;

[0035] an insulating pull rod, one end of which is connected and fixed to one side of the copper head of the first fixed sealing member;

[0036] A screw rod, movably connected to one end of the screw rod on the other side of the insulating pull rod;

[0037] A connecting plate is provided below the screw;

[0038] a magnetic shell, fixed below the connecting plate;

[0039] A limiting ring is arranged in the magnetic shell;

[0040] a magnetic core, fixed in the limiting ring;

[0041] A fixing plate is fixed below the magnetic shell; the connecting plate, the magnetic shell, the limiting ring, the magnetic core, and the fixing plate form a second component; and the second component is sleeved on the screw;

[0042] a guide block, fixed on the screw rod;

[0043] A pressing plate, used to fix the second component mechanism and the first sealing component;

[0044] A bottom plate is fixed below the box body of the box structure.

[0045] Furthermore, in the modular recloser of the present invention, the driving device further includes:

[0046] The spindle is provided in the box body of the box structure;

[0047] A main shaft rotating structure is provided at both ends of the main shaft;

[0048] A connecting rod, on the main shaft, fixing one end of the connecting rod below the sealing module;

[0049] One end of the insulating pull rod is connected to the connecting rod.

[0050] In a second embodiment of the present invention, a method for preparing a modular recloser is provided, comprising the following steps:

[0051] Step S10: Assembling the first component: putting the first sealing ring on the connecting rod, then connecting and fixing it to the vacuum bottle with bolts, putting the copper head on the lower end of the vacuum bottle, then fixing the movable end base and the lower end of the vacuum bottle, then putting the first current transformer on the movable end base, and finally installing the second sealing ring and shielding net to form the first component; then proceeding to step S20;

[0052] Step S20: sealing the first component; forming an injection-molded rubber integrally on the outer side of the first component through a mold; forming a sealing module, and proceeding to step S30;

[0053] Step S30: Assemble the second component, connect the screw and the insulating pull rod, and then connect the lower end of the vacuum bottle. Place the connecting plate below the screw; fix the magnetic shell below the connecting plate; place a limiting ring in the magnetic shell; fix the magnetic core in the limiting ring; and fix the fixing plate below the magnetic shell. The connecting plate, the magnetic shell, the limiting ring, the magnetic core, and the fixing plate form a second component. The second component is placed on the screw, and the exposed portion of the screw is fixed with a guide block. The second component and the sealing module are then fixed with a pressing plate. The first module is formed, and the process proceeds to step S40.

[0054] Step S40: Assemble the interior of the box body by welding the grounding studs and the lifting ring to the box body, and then assemble the base, main shaft, drive fixing plate, indicator, switch, current protection plate, counter, drive plate, grounding studs, bending plate, capacitor fixing plate, capacitor, lifting ring, main shaft fixing plate; and operating rod into the welded box body to form the box body structure;

[0055] Finally, the first module and the box structure described in step S30 are connected and fixed together using a connecting plate, and then the bottom plate is assembled onto the box.

[0056] Compared with the prior art, the present invention adopts a method of fixing a sealed module above the box structure; arranging the driving device in the box structure; and driving the conducting structure in the sealed module to conduct or disconnect. In the present invention, the efficiency of production testing is improved by highly modularizing the original parts of the recloser, which greatly reduces the assembly time in production, speeds up the testing efficiency, reduces the items of centralized testing, and makes the entire recloser production process simpler and more efficient. It solves the technical problems in the prior art that the recloser mechanism has no control system and can only rely on mechanical devices to protect the distribution network lines. At the same time, the structure of the recloser is relatively complex, the assembly process is relatively complex, the installation efficiency is relatively low, and there is no way to conduct centralized testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] FIG1 is a schematic structural diagram of the present invention in the main viewing direction;

[0058] FIG2 is a schematic diagram of the structure of the present invention when viewed from above;

[0059] FIG3 is a schematic diagram of the structure of the present invention when viewed from the left;

[0060] FIG4 is a schematic diagram of the cross-sectional structure of the present invention taken along the AA direction;

[0061] FIG5 is a schematic diagram of internal circuit connections of the present invention;

[0062] FIG6 is an assembly flow chart of the second embodiment of the present invention. DETAILED DESCRIPTION

[0063] To make the objectives, technical solutions, and advantages of the present invention more apparent, various embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will appreciate that many technical details are provided in various embodiments of the present invention to facilitate a better understanding of the present application. However, even without these technical details and the various variations and modifications based on the following embodiments, the technical solutions claimed in the claims of this application can be implemented.

[0064] A first embodiment of the present invention relates to a modular recloser, as shown in FIG1 to FIG5 , comprising:

[0065] The box structure 100 in this embodiment is mainly used to place the driving board 28, the driving fixing board 22, the indicator 23, the switch 24, the current protection board 25, the counter 26, the voltage calibration board 27, the capacitor fixing board 30, and the capacitor.

[0066] A sealing module 200 is fixed above the box structure 100; the sealing module 200 is mainly used to connect high-voltage cables and isolate the high voltage on the high-voltage cables;

[0067] The driving device 300 is provided in the box structure 100 ; the driving device 300 drives the conductive structure in the sealing module 200 to conduct or disconnect.

[0068] The present invention improves production and testing efficiency by highly modularizing the original recloser components, significantly reducing assembly time, accelerating testing efficiency, and reducing the number of centralized testing items, making the entire recloser production process more streamlined and efficient. This overcomes the technical problems of the prior art, where reclosers lack a control system and rely solely on mechanical devices to protect distribution network lines. Furthermore, the recloser's structure is complex, the assembly process is complex, installation efficiency is low, and centralized testing is impossible.

[0069] In order to achieve the above-mentioned technical effects, the modular recloser in this embodiment, as shown in Figures 1 to 5, respectively drives the plate 28, drives the fixed plate 22, the indicator 23, the switch 24, the current protection plate 25, the counter 26, the voltage calibration plate 27, the capacitor fixed plate 30, and the capacitors in this embodiment include a first capacitor 311, a second capacitor 312, a third capacitor 313, and a fourth capacitor 314 in the box structure 100.

[0070] To achieve the above technical effects, the modular recloser in this embodiment, as shown in Figures 1 to 5, is configured such that the input end of the driver board 27 is connected to the output end of the voltage calibration board 27; the first input end of the voltage calibration board 27 is connected to the output end of the first capacitor 311 and the input end of the second capacitor 312; the input end of the first capacitor 311 is connected to a power supply; and the output end of the second capacitor 312 is short-circuited and then grounded.

[0071] The second input terminal of the voltage calibration board 27 is connected to the output terminal of the third capacitor 313 and the input terminal of the fourth capacitor 314; the input terminal of the third capacitor 313 is connected to the power supply; the output terminal of the fourth capacitor 314 is short-circuited and then grounded;

[0072] A control switch 315 is provided on the power supply between the first capacitor 311 and the third capacitor 313; the above-mentioned first capacitor 311, second capacitor 312, third capacitor 313, and fourth capacitor 314 are mainly used to calibrate the voltage. When the voltage is normal, the first capacitor 311, second capacitor 312, third capacitor 313, and fourth capacitor 314 are short-circuited by the control switch 315. When the voltage fluctuates, the control switch 315 is disconnected to enable the first capacitor 311, second capacitor 312, third capacitor 313, and fourth capacitor 314 to work and achieve voltage stability.

[0073] One end of the current transformer 316 is connected to one side of the current protection board 25; the output end of the current protection board 25 is connected to the input end of the driving board 28; the current transformer 316 is input to one side of the current protection board 25 and is mainly suitable for current protection.

[0074] Input signals of the open circuit controller 317 and the short circuit controller 318 are simultaneously input to the input end of the driving board 28; the open circuit controller 317 and the short circuit controller 318 are used to perform open circuit control and short circuit control.

[0075] A gas low output normally open signal 319 and a manual lock output normally open signal 320 are output at the input end of the driving board 28; the output gas low output normally open signal 319 is used for the state input of the vacuum environment of the modular recloser, and the manual lock output normally open signal 320 is used for the input of the manual lock state.

[0076] Two relay output signals 321 are also outputted at the input end of the driving board 28 for outputting alarm signals.

[0077] In order to achieve the above technical effects, the modular recloser in this embodiment, as shown in FIG1 to FIG5 , has a box structure 100 further comprising:

[0078] A box 36 is provided in the box structure 100; the box 36 is used to install the driving board 28, the driving fixing board 22, the indicator 23, the switch 24, the current protection board 25, the counter 26, the voltage calibration board 27, the capacitor fixing board 30, and the capacitor.

[0079] A bottom plate 19 is fixed below the box body 36 ; the bottom plate 19 is used to support components on the bottom plate 19 .

[0080] A foot 20 is fixed below the bottom plate 19 ; the foot 20 is used to support the bottom plate 19 .

[0081] A grounding stud 281 is fixed below the bottom plate 19. The grounding stud 281 is used for grounding.

[0082] To achieve the above technical effects, the modular recloser in this embodiment, as shown in Figures 1 to 5, has several fixed modules 200 fixed above the box structure 100. In this embodiment, three fixed modules 200 are fixed above the box structure 100 for three-phase AC power.

[0083] In order to achieve the above technical effects, the modular recloser in this embodiment, as shown in FIG1 to FIG5 , includes a sealing module 200 further comprising:

[0084] Connecting rod 2, a connecting rod 2 is provided in the middle of the sealing module 200;

[0085] First sealing ring 3, put the connecting rod 2 into the first sealing ring 3;

[0086] The connecting rod 2 is put into the induction net 4; the induction net 4 is used for grounding to prevent induced current.

[0087] The connecting rod 2 is fixed to the vacuum bottle 6 by means of bolts 5; the vacuum bottle 6 places the connecting structure of the connecting rod 2 in a vacuum environment, thereby preventing oxidation of the connection.

[0088] Put the copper head 8 on the bottom of the vacuum bottle 6; the copper head 8 is used to connect the connecting rod 2

[0089] The movable end base 7 is fixed on the bottom of the vacuum bottle 6;

[0090] A first current transformer 71 is inserted into the movable end base 7; the first current transformer 71 is used to detect the incoming or outgoing current;

[0091] A shielding net 9 is put on the copper head 8; the shielding net 9 mainly plays a shielding role.

[0092] The connecting rod 2, the first sealing ring 3, the induction network 4, the vacuum bottle 6, the copper head 8, the moving end base 7, the first current transformer 71, and the shielding net 9 are connected to form a first component;

[0093] The rubber is sealed on the outer side of the first component to form a first sealing component;

[0094] An insulating pull rod 10 is connected and fixed to one end of the copper head 8 of the first sealing component;

[0095] One end of the screw rod 11 is movably connected to the other side of the insulating pull rod 10;

[0096] A connecting plate 12 is provided below the screw 11;

[0097] The magnetic shell 13 is fixed below the connecting plate 12;

[0098] A limiting ring 14 is provided in the magnetic shell 13;

[0099] The magnetic core 15 is fixed in the limiting ring 14;

[0100] The fixing plate 16 is fixed below the magnetic shell 15 ; the connecting plate 12 , the magnetic shell 13 , the limiting ring 14 , the magnetic core 15 , and the fixing plate 16 constitute a second component; and the second component is sleeved on the screw 11 .

[0101] The guide block 18 is fixed on the screw rod 11;

[0102] Use the pressing plate 17 to fix the second component mechanism and the first sealing component;

[0103] A bottom plate 19 is fixed below the box body 36 of the box body structure 100 .

[0104] In order to achieve the above technical effects, the modular recloser in this embodiment, as shown in FIG1 to FIG5 , the driving device 300 further includes:

[0105] The main shaft 21 is arranged in the box body 36 of the box structure 100;

[0106] The main shaft rotating structure 20 is provided at both ends of the main shaft 21 ; the main shaft rotating structure 20 drives the main shaft 21 to conduct or disconnect the modular recloser in this embodiment.

[0107] A connecting rod 211 is fixed on the main shaft 21 below the sealing module 200 at one end;

[0108] One end of the insulating pull rod 10 is connected to the connecting rod 211 .

[0109] The present invention also provides a method for preparing a modular recloser in a second embodiment, as shown in FIG6 , comprising the following steps:

[0110] Step S10: Assembling the first component: Attach the first sealing ring 3 to the connecting rod 2, then secure it to the vacuum bottle 6 via bolts 5. Attach the copper head 8 to the lower end of the vacuum bottle 6, secure the movable end base 7 to the lower end of the vacuum bottle 6, attach the first current transformer 71 to the movable end base 7, and finally install the second sealing ring 91 and shielding mesh 9 to complete the first component. Proceeding to step S20;

[0111] Step S20: sealing the first component; forming an injection-molded rubber integrally on the outer side of the first component through a mold; forming a sealing module 100, and proceeding to step S30;

[0112] Step S30: Assemble the second component, connect the screw 11 and the insulating pull rod 10, and then connect the lower end to the vacuum bottle 6, set the connecting plate 12 below the screw 11; fix the magnetic shell 13 below the connecting plate 12; set a limiting ring 14 in the magnetic shell 13; fix the magnetic core 15 in the limiting ring 14; fix the fixing plate 16 below the magnetic shell 13; the connecting plate 12, the magnetic shell 13, the limiting ring 14, the magnetic core 14, and the fixing plate 16 form a second component, put the second component on the screw 11, and then use the guide block 18 to fix the exposed part of the screw 11, and then use the pressing plate 17 to fix the second component and the sealing module 100; form the first module, and enter step S40;

[0113] Step S40: Assemble the interior of the box body by welding the grounding stud 281 and the lifting ring 32 to the box body 36, and then assemble the base 20, the spindle 21, the drive fixing plate 22, the indicator 23, the switch 24, the current protection plate 25, the counter 26, the drive plate 28, the grounding stud 281, the bent plate 29, the capacitor fixing plate 30, the capacitors including the first capacitor 311, the second capacitor 312, the third capacitor 313, and the fourth capacitor 314, the lifting ring 32, the spindle fixing plate 34; and the operating rod into the welded box body 36 to form a box structure;

[0114] Finally, the first module and the box structure described in step S30 are connected and fixed together using the connecting plate 12 , and then the bottom plate 19 is assembled onto the box 36 .

[0115] The assembly method of the present invention improves production and testing efficiency by highly modularizing the original recloser components. This significantly reduces assembly time during production, accelerates testing efficiency, and reduces the number of centralized testing items, making the entire recloser production process more concise and efficient. This overcomes the technical problems of the prior art, where reclosers lack a control system and rely solely on mechanical devices to protect distribution network lines. Furthermore, the recloser's structure is complex, the assembly process is complex, installation efficiency is low, and centralized testing is impossible.

[0116] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present invention, and that in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A modular recloser, characterized in that: include: Box structure; Solid sealing module; The fixed sealing module is fixed on the top of the box structure; A driving device, wherein the driving device is arranged in the box structure; The driving device drives the conducting structure in the solid-sealed module to conduct or disconnect.

2. The modular recloser according to claim 1, characterized in that: The driving board, the driving fixing board, the indicator, the switch, the current protection board, the counter, the voltage calibration board, the capacitor fixing board and the capacitor are fixed in the box structure respectively.

3. The modular recloser according to claim 2, characterized in that: The input end of the driving board is connected to the output end of the voltage calibration board; the first input end of the voltage calibration board is connected to the output end of the first capacitor and the input end of the second capacitor; the input end of the first capacitor is connected to a power supply; the output end of the second capacitor is short-circuited and then grounded; The second input end of the voltage calibration board is connected to the output end of the third capacitor and the input end of the fourth capacitor; the input end of the third capacitor is connected to the power supply; the output end of the fourth capacitor is short-circuited and then grounded; A control switch is provided on a power supply between the first capacitor and the third capacitor; Connect one end of the current transformer to one side of the current protection board; The output end of the current protection board is connected to the input end of the driving board; Inputting input signals of the circuit open circuit controller and the short circuit controller simultaneously at the input end of the driving board; Outputting a gas low output normally open signal and a manual lock output normally open signal at the input end of the driving board; Two relay output signals are also output at the input end of the driving board.

4. The modular recloser according to claim 1, characterized in that: The box structure further comprises: A box body, wherein the box body is arranged in the box body structure; A bottom plate, fixed below the box body; A foot, fixing the foot below the bottom plate; A grounding stud is fixed below the bottom plate.

5. The modular recloser according to claim 1, characterized in that: A plurality of the sealing modules are fixed above the box structure.

6. The modular recloser according to claim 5, characterized in that: The sealing module further comprises: A connecting rod, which is arranged in the middle of the sealing module; A first sealing ring, wherein the connecting rod is sleeved with the first sealing ring; Induction net, the connecting rod is put into the induction net; A vacuum bottle is fixed to the vacuum bottle on the connecting rod by bolts; A copper head, which is put on the bottom of the vacuum bottle; A movable end base, fixed at the bottom of the vacuum bottle; A first current transformer, which is inserted into the moving end base; Shielding net, which is put on the copper head; The connecting rod, the first sealing ring, the induction net, the vacuum bottle, the copper head, the moving end base, the first current transformer, and the shielding net are connected to form a first component; A rubber seal is formed on the outer side of the first component to form a first sealing component; An insulating pull rod, one end of which is connected and fixed to one side of the copper head of the first fixed sealing member; A screw rod, movably connected to one end of the screw rod at the other side of the insulating pull rod; A connecting plate is arranged below the screw rod; A magnetic shell is fixed below the connecting plate; A limiting ring is arranged in the magnetic shell; A magnetic core, the magnetic core is fixed in the limiting ring; A fixing plate is fixed below the magnetic shell; the connecting plate, the magnetic shell, the limiting ring, the magnetic core and the fixing plate form a second component; and the second component is sleeved on the screw rod; A guide block, the guide block being fixed on the screw rod; A pressing plate, using the pressing plate to fix the second component mechanism and the first sealing component; A bottom plate is fixed below the box body of the box structure.

7. The modular recloser according to claim 1, characterized in that: The driving device further comprises: The spindle is arranged in the box body of the box body structure; A main shaft rotating structure is provided at both ends of the main shaft; A connecting rod, on the main shaft, fixing one end of the connecting rod below the sealing module; One end of the insulating pull rod is connected to the connecting rod.

8. A method for preparing a modular recloser, characterized in that: The following steps are involved: Step S10: Assembling the first component, putting the first sealing ring on the connecting rod, then connecting and fixing it with the vacuum bottle by bolts, putting the copper head on the lower end of the vacuum bottle, then fixing the moving end base and the lower end of the vacuum bottle, then putting the first current transformer on the moving end base, and finally installing the second sealing ring and the shielding net to form the first component; proceeding to step S20; Step S20: sealing the first component; forming an injection-molded rubber on the outer side of the first component by a mold; forming a sealing module, and proceeding to step S30; Step S30: Assemble the second component, connect the screw and the insulating pull rod, and then connect the lower end of the vacuum bottle, set the connecting plate below the screw; fix the magnetic shell below the connecting plate; set a limit ring in the magnetic shell; fix the magnetic core in the limit ring; fix the fixing plate below the magnetic shell; form the second component with the connecting plate, the magnetic shell, the limit ring, the magnetic core, and the fixing plate, put the second component on the screw, fix the exposed part of the screw with a guide block, and then fix the second component and the sealing module with a pressing plate; form the first module, and enter step S40; Step S40: Assemble the inside of the box body, weld the grounding studs and the lifting rings to the box body, and then assemble the base, the spindle, the drive fixing plate, the indicator, the switch, the current protection plate, the counter, the drive plate, the grounding studs, the bending plate, the capacitor fixing plate, the capacitor, the lifting ring, the spindle fixing plate; and the operating rod into the welded box body to form a box body structure; Finally, the first module and the box structure described in step S30 are connected and fixed together using a connecting plate, and then the bottom plate is assembled onto the box.

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