Fusion switch with compact structure

Abstract

The invention discloses a fusion switch with a compact structure, relates to the technical field of switches, and aims to solve the problems that an existing fusion switch is large in size and waste in installation space. The switch comprises a driving mechanism, a main loop switch mechanism and a pre-charging loop switch mechanism, wherein the main loop switch mechanism and the pre-charging loop switch mechanism are adjacently arranged in the first direction X; the main loop switching mechanism comprises two groups of main loop on-off devices which are arranged side by side along the X direction and have movable assembly central shafts along the X direction; the pre-charging loop switch mechanism comprises two groups of pre-charging loop on-off devices which are adjacent in a third direction Z and have movable assembly center shafts in an X direction; the driving mechanism is located on one side of the main and pre-charging loop switching mechanism in the Z direction, and the X direction is perpendicular to the Z direction. The layout is optimized by utilizing the volume characteristics of the main loop on-off device and the pre-charging loop on-off device, the structure compactness is greatly improved, and the waste of installation space is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of switches, in particular to a compact fusion switch. BACKGROUND

[0002] CN202421946810.1 discloses a fusion switch, which comprises a main circuit switch unit, a pre-charging switch unit and a double-motor operating module. The double-motor operating module comprises an operating shell and a main circuit operating mechanism and a pre-charging circuit operating mechanism arranged in the operating shell. First and second openings are formed in the operating shell. The first opening is provided with a first output member linked with the main circuit operating mechanism, and the second opening is provided with a second output member linked with the pre-charging circuit operating mechanism. The main circuit operating mechanism and the pre-charging circuit operating mechanism can drive the fusion switch to open and close through the corresponding first and second output members. The pre-charging switch unit in the patent is directly attached to one side of the main circuit switch unit, and the overall volume is large, and the overall appearance occupies a large recess space, which causes waste of equipment installation space. SUMMARY

[0003] In view of the deficiencies of the prior art, the application provides a compact fusion switch.

[0004] To achieve the above object, the technical scheme of the application is as follows: a compact fusion switch, which comprises a driving mechanism and a main circuit switch mechanism and a pre-charging circuit switch mechanism arranged adjacent to each other along a first direction X. The main circuit switch mechanism comprises two groups of main circuit on-off devices, and the main circuit on-off devices have moving components with central axes arranged along the first direction X. The two groups of main circuit on-off devices are arranged adjacent to each other along the first direction X. The pre-charging circuit switch mechanism comprises two groups of pre-charging circuit on-off devices, and the pre-charging circuit on-off devices have moving components with central axes arranged along the first direction X. The two groups of pre-charging circuit on-off devices are arranged adjacent to each other along a third direction Z. The driving mechanism is in transmission cooperation with the moving components of the main circuit on-off devices and the moving components of the pre-charging circuit on-off devices.

[0005] Preferably, the main circuit switch mechanism comprises a main circuit free trip mechanism, and the main circuit free trip mechanism is located on one side of the two groups of main circuit on-off devices along the first direction X. The pre-charging circuit switch mechanism comprises a pre-charging circuit free trip mechanism, and the pre-charging circuit free trip mechanism is located on one side of the two groups of pre-charging circuit on-off devices along the first direction X. The driving mechanism is located on one side of the main loop switch mechanism and the pre-charge loop switch mechanism arranged adjacent along the first direction X along the third direction Z perpendicular to the first direction X, and the driving mechanism comprises an operating mechanism, a main loop operating transmission unit, a main loop tripping device, a pre-charge loop operating transmission unit, and a pre-charge loop tripping device; The main loop operating transmission unit and the main loop tripping device are located on one side of the main loop free tripping mechanism along the third direction Z; The pre-charge loop operating transmission unit and the pre-charge loop tripping device are located on one side of the pre-charge loop free tripping mechanism along the third direction Z; The operating mechanism is located on one side of the main loop operating transmission unit, the main loop tripping device, the pre-charge loop operating transmission unit, and the pre-charge loop tripping device away from the main loop switch mechanism and the pre-charge loop switch mechanism along the third direction Z, and is used for driving the main loop operating transmission unit and the pre-charge loop operating transmission unit.

[0006] Preferably, two groups of main loop on-off devices are arranged between the main loop free tripping mechanism and the pre-charge loop free tripping mechanism, and two groups of pre-charge loop on-off devices are arranged on one side of the pre-charge loop free tripping mechanism away from the main loop switch mechanism.

[0007] Preferably, the main loop free tripping mechanism comprises a first arc-shaped motion input end, a first jump locking piece, a first lock piece, and a first energy storage spring, the first lock piece has a locking position for forming a locking action on the first jump locking piece to store energy of the first energy storage spring and an unlocking position for releasing the locking action on the jump locking piece to release energy of the first energy storage spring, and in the unlocking state, the first energy storage spring releases energy to drive the first multi-link mechanism with the energy storage piece to perform a tripping and opening action; The main loop operating transmission unit comprises a first sliding block and a first guide piece for limiting linear sliding of the first sliding block, the first sliding block moves linearly on the first guide piece along the second direction Y, and the first sliding block is connected with the first arc-shaped motion input end to form a transmission cooperation; The main loop tripping device comprises a first electromagnetic push block, the first electromagnetic push block cooperates with the first lock piece, and the first electromagnetic push block moves linearly along the second direction Y; The pre-charge loop free tripping mechanism comprises a second arc-shaped motion input end, a second jump locking piece, a second lock piece, and a second energy storage spring, the second lock piece has a locking position for forming a locking action on the second jump locking piece to store energy of the second energy storage spring and an unlocking position for releasing the locking action on the jump locking piece to release energy of the second energy storage spring, and in the unlocking state, the second energy storage spring releases energy to drive a tripping and opening action; The pre-charging circuit operation transmission unit comprises a third slider and a third guide member for linearly slidingly limiting the third slider, the third slider linearly moves on the third guide member along a second direction Y perpendicular to the first direction X and perpendicular to the third direction Z, and the third slider is connected with the second arc-shaped movement input end to form a cooperation; The pre-charging circuit operation transmission unit comprises a third slider and a third guide member for linearly slidingly limiting the third slider, the third slider linearly moves on the third guide member along a second direction Y perpendicular to the first direction X and perpendicular to the third direction Z, and the third slider is connected with the second arc-shaped movement input end to form a cooperation;

[0008] Preferably, the operation mechanism comprises a main circuit driving shaft and a pre-charging circuit driving shaft, and the central axes of the main circuit driving shaft and the pre-charging circuit driving shaft are arranged along the third direction Z; The main circuit driving sliding assembly is arranged between the main circuit operation transmission unit, the main circuit tripping device and the main circuit driving shaft; The main circuit driving sliding assembly comprises a second slider and a second guide member for linearly slidingly limiting the second slider, the lower end of the main circuit driving shaft is connected with a first rotating arm which rotates synchronously, the second slider is provided with a second sliding groove arranged along the first direction X, the outer end of the first rotating arm is provided with a transmission wheel which extends into the second sliding groove, the main circuit driving shaft rotates to drive the first slider to slide along the first direction, and the sliding directions of the second slider and the first slider are the same and the two are linked and cooperated; The first electromagnetic push block is provided with a first reset push rod which extends to one side of the second slider, and is used for resetting the main circuit tripping device by the main circuit driving shaft; The pre-charging circuit driving sliding assembly is arranged between the pre-charging circuit operation transmission unit, the pre-charging circuit tripping device and the pre-charging circuit driving shaft; The pre-charging circuit driving sliding assembly comprises a fourth slider and a fourth guide member for linearly slidingly limiting the fourth slider, the lower end of the pre-charging circuit driving shaft is connected with a second rotating arm which rotates synchronously, the fourth slider is provided with a fourth sliding groove arranged along the first direction X, the outer end of the second rotating arm is provided with a transmission wheel which extends into the fourth sliding groove, the pre-charging circuit driving shaft rotates to drive the third slider to slide along the first direction, and the sliding directions of the fourth slider and the third slider are the same and the two are linked and cooperated; The second electromagnetic push block is provided with a second reset push rod which extends to one side of the fourth slider, and is used for resetting the pre-charging circuit tripping device by the pre-charging circuit driving shaft.

[0009] Preferably, the operation mechanism comprises a driving motor and a motor driving wheel, and the driving motor is used for driving the motor driving wheel to rotate forward or reverse; The outer periphery of the main circuit driving shaft and the pre-charging circuit driving shaft is respectively sleeved with a main circuit driving wheel and a pre-charging circuit driving wheel, and the main circuit driving wheel and the pre-charging circuit driving wheel are respectively located on the two sides of the motor driving wheel and synchronously rotate with the motor driving wheel. The main circuit driving shaft and the main circuit driving wheel are matched through the first one-way clutch matching structure; The pre-charge circuit driving shaft and the pre-charge circuit driving wheel are matched through the second one-way clutch matching structure; Under the action of the first one-way clutch matching structure and the second one-way clutch matching structure, when the motor driving wheel rotates and drives in the first rotation direction, the main circuit driving shaft remains stationary and the pre-charge circuit driving shaft rotates synchronously with the motor driving wheel in at least part of the rotation path; when the motor driving wheel rotates and drives in the second rotation direction, the pre-charge circuit driving shaft remains stationary and the main circuit driving shaft rotates synchronously with the motor driving wheel in at least part of the rotation path; The first rotation direction is opposite to the second rotation direction.

[0010] Preferably, the outer periphery of the main circuit driving wheel, the pre-charge circuit driving wheel and the motor driving wheel is a gear structure, and the main circuit driving wheel and the pre-charge circuit driving wheel are respectively engaged with the motor driving wheel.

[0011] Preferably, the switch housing assembly comprises a driving mechanism housing assembly for a driving mechanism, a main circuit switch housing assembly for accommodating a main circuit switch mechanism, and a pre-charge circuit housing assembly for accommodating a pre-charge circuit switch mechanism. The main circuit switch housing assembly is provided with a first transmission through hole on the side close to the driving mechanism housing assembly. The pre-charge circuit housing assembly is provided with a second transmission through hole on the side close to the driving mechanism housing assembly.

[0012] Preferably, the main circuit switch housing assembly and the pre-charge circuit housing assembly have the same width along the second direction Y perpendicular to the first direction X and perpendicular to the third direction Z and the same length along the third direction Z, the driving mechanism housing assembly has the same width along the second direction Y as the main circuit switch housing assembly and the pre-charge circuit housing assembly, and the housing structure after the main circuit switch housing assembly and the pre-charge circuit housing assembly are connected has the same thickness along the first direction X.

[0013] Preferably, the switch housing assembly comprises a driving mechanism housing assembly for a driving mechanism, a main circuit switch housing assembly for accommodating a main circuit switch mechanism, and a pre-charge circuit housing assembly for accommodating a pre-charge circuit switch mechanism. The main circuit switch housing assembly is provided with a first transmission through hole on the side close to the driving mechanism housing assembly, and the main circuit operation transmission unit, the main circuit tripper and the main circuit free tripping mechanism are matched through the first transmission through hole. The second transmission through hole is arranged on one side of the drive mechanism shell assembly close to the pre-charge circuit shell assembly, and the pre-charge circuit operation transmission unit, the pre-charge circuit tripping device and the pre-charge circuit free tripping mechanism are matched through the second transmission through hole. The drive mechanism shell assembly comprises a drive mechanism upper cover, a drive mechanism middle partition plate and a drive mechanism bottom cover. The drive mechanism upper cover and the drive mechanism middle partition plate are connected to form an upper drive chamber, and the drive mechanism middle partition plate and the drive mechanism bottom cover are connected to form a lower drive chamber. The operation mechanism is located in the upper drive chamber, and the main circuit operation transmission unit, the main circuit tripping device, the pre-charge circuit operation transmission unit and the pre-charge circuit tripping device are fixed in the lower drive chamber. The main circuit switch shell assembly is provided with a first connecting sliding groove arranged along the first direction X, and the pre-charge circuit shell assembly is provided with a second connecting sliding groove. The first connecting sliding groove and the second connecting sliding groove are both open on the side in contact with each other, and the two form a limiting connection groove which is suitable for the shape of the connecting plate. A connecting piece is arranged to connect the main circuit switch shell assembly and the pre-charge circuit shell assembly, so that the relative position of the two along the first direction X is fixed. A plurality of connecting holes are arranged in the middle of the connecting plate, and a plurality of connecting holes are correspondingly arranged on the drive mechanism bottom cover. The connecting plate and the drive mechanism bottom cover are connected through the threaded fasteners from one side of the drive mechanism bottom cover.

[0014] The beneficial effects of the present application are as follows: in the photovoltaic system, the circuit connected by the pre-charge circuit switch mechanism is a pre-charge circuit with a pre-charge resistor, and the current is small. Therefore, the overall volume of the two groups of pre-charge circuit on-off devices in the pre-charge circuit switch mechanism is small, the main circuit bears a large current, and therefore the overall volume of the two groups of main circuit on-off devices is large. The present application adjusts the overall spatial layout to make the integrated switch structure more compact. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings obtained according to these drawings without creative labor are still within the scope of the present application.

[0016] Figure 1 It is an explosion structure schematic diagram of one embodiment of the present application; Figure 2 It is an internal structure schematic diagram of one embodiment of the present application; Figure 3 It is an explosion view of the cooperation structure of the drive mechanism shell assembly and the drive mechanism in one embodiment of the present application; Figure 4Structure diagram of operating mechanism in one embodiment of the application; Figure 5 Structure diagram of main circuit driving shaft and pre-charge circuit driving shaft driving structure in one embodiment of the application; Figure 6 Structure diagram of first one-way clutch structure and second one-way clutch structure in one embodiment of the application; Figure 7 Structure diagram of main circuit driving shaft and pre-charge circuit driving shaft output driving structure in one embodiment of the application; Figure 8 Structure diagram of main circuit switch part in one embodiment of the application; Figure 9 Exploded view of first driving box part and its internal structure in one embodiment of the application; Figure 10 Structure diagram of main circuit on-off box part in one embodiment of the application; Figure 11 Exploded view of main circuit on-off box part and its internal structure in one embodiment of the application; Figure 12 Structure diagram of a group of main circuit on-off devices in one embodiment of the application; Figure 13 Structure diagram of first main circuit static contact (a) and second main circuit static contact (b) in one group of main circuit on-off devices in one embodiment of the application; Figure 14 Structure diagram of wiring of two groups of main circuit on-off devices in one embodiment of the application; Figure 15 Structure diagram of pre-charge circuit switch part in one embodiment of the application; Figure 16 Exploded view of pre-charge circuit switch part in one embodiment of the application; Figure 17 Structure diagram of two groups of pre-charge circuit on-off devices in one embodiment of the application; Figure 18 Structure diagram of pre-charge circuit moving contact assembly and pre-charge circuit static contact assembly in one embodiment of the application; Figure 19 Wiring structure diagram of pre-charge circuit switch part in one embodiment of the application, (a) is a structure diagram of partial outer wall of first side pre-charge circuit cover body, (b) is a structure diagram of cooperation of third static contact and first side pre-charge circuit cover body outer wall; Figure 20 External structure diagram of fusion switch in one embodiment of the application; Figure 21 Structure diagram of the first fixed support and the second fixed support in one embodiment of the present application; In the figure, 100-driving mechanism housing assembly, 110-driving mechanism upper cover, 120-driving mechanism middle partition plate, 130-driving mechanism bottom cover; 200-main circuit switch housing assembly, 210-first transmission box, 211-first transmission housing, 212-second transmission housing, 213-first transmission through hole, 214-first mechanism cover plate, 215-second mechanism cover plate, 220-main circuit on-off box, 221-first side main circuit cover, 222-middle main circuit housing, 223-second side main circuit cover, 224-first insulation partition plate, 225-second insulation partition plate, 2251-insulation partition plate slot; 230-first connecting sliding slot; 300-pre-charging circuit housing assembly, 310-second transmission box, 311-third transmission housing, -third mounting groove, 311b-third protrusion, -fourth mounting groove, 312-fourth transmission housing, 313-second transmission through hole, 314-third mechanism cover plate, 315-fourth mechanism cover plate, 320-pre-charging circuit on-off box, 321-first side pre-charging circuit cover, 322-second side pre-charging circuit cover, 330-second connecting sliding slot, 340-fourth protrusion, 341-slotted; 342-matching slot; 410 - operating mechanism, 411a - first support plate, 411b - second support plate, 411c - third support plate, 411d - fourth support plate, 412 - drive motor, 415 - motor drive wheel, 416 - main circuit drive shaft, 416a - main circuit drive wheel, 416b - first matching groove, 416c - first joint surface, 416d - first separation surface, 416e - first mounting groove, 416f - first ball, 416g - first elastic element, 416i - first rotating arm, 417 - main circuit drive sliding assembly, 417a - second sliding block, 417b - second guide rail element, 417c - second sliding groove, 418 - pre-charging circuit drive shaft, 418a - pre-charging circuit drive wheel, 418b - second matching groove, 418c - second joint surface, 418d - second separation surface, 418e - second mounting groove, 418f - second ball, 418g - second elastic element, 418i - second rotating arm, 419 - pre-charging circuit drive sliding assembly, 419a - fourth sliding block, 419b - fourth guide rail element, 419c - fourth sliding groove, 420 - main circuit operation transmission unit, 421 - first sliding block, 421a - first transmission groove, 422 - first guide rail element, 430 - main circuit tripper, 431 - first electromagnetic push block, 431a - first reset push rod, 440 - pre-charging circuit operation transmission unit, 441 - third sliding block, 442 - third guide rail element, 450 - pre-charging circuit tripper, 451 - second electromagnetic push block, 451a - second reset push rod, 460 - control board; 510 - main circuit free tripping mechanism, 511 - first arc-shaped motion input end, 512 - first locking element, 520 - main circuit on-off device, 521 - main circuit movable contact assembly, 522 - first main circuit static contact, 523 - second main circuit static contact, 524 - main circuit arc-extinguishing chamber, 525 - first conductive plate, 525a - first connecting part, 525b - first wiring part, 525c - first extension part, 526 - second conductive plate, 526a - second connecting part, 526b - second wiring part, 526c - second extension part, 530 - first transmission assembly; 610 - pre-charging circuit free tripping mechanism, 611 - second arc-shaped motion input end, 612 - second locking element, 620 - pre-charging circuit on-off device, 621 - pre-charging circuit movable contact assembly, 622 - pre-charging circuit static contact, 622a - third static contact element, 622b - third conductive plate, 622c - third connecting part, 622d - third wiring part, 622e - third extension part, 623 - pre-charging circuit arc-extinguishing chamber, 630 - second transmission assembly; 710 - first fixed support, 711 - connecting beam, 712 - first side plate, 713 - second side plate, 714 - U-shaped connecting groove, 720 - second fixed support; 800 - connecting plate. Detailed Implementation

[0017] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application. The terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0019] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0020] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0022] In this application, "and / or" is merely a way of describing the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0023] It should be noted that the terms "in some embodiments", "illustratively", "for example" and the like are used herein to mean "one or more instances of as exemplified, one or more instances of as explained, or one or more instances of as illustrated". Any embodiment or design presented as "in some embodiments", "illustratively", "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of such terms is intended to present certain concepts in a particular manner, meaning that the particular features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the application. The occurrence of these phrases in various places in the specification is not necessarily all referring to the same embodiment, nor is it implying that all of the embodiments are alternative or mutually exclusive exclusive embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] In this application, the first direction X, the second direction Y and the third direction Z are straight lines and perpendicular to each other. The first rotation direction and the second rotation direction are opposite, respectively referring to the clockwise rotation direction and the counterclockwise rotation direction or the counterclockwise rotation direction or the clockwise rotation direction.

[0025] A fusion switch includes a switch housing assembly, such as Figure 1 As shown, the switch housing assembly includes a drive mechanism housing assembly 100, a main circuit switch housing assembly 200, a pre-charge circuit housing assembly 300, a drive mechanism housed in the drive mechanism housing assembly 100, a main circuit switch mechanism housed in the main circuit switch housing assembly 200, a pre-charge circuit switch mechanism housed in the pre-charge circuit housing assembly 300, the main circuit switch housing assembly 200 and the pre-charge circuit housing assembly 300 are connected adjacent along the first direction X, and the drive mechanism housing assembly 100 is located on one side of the connected main circuit switch housing assembly 200 and the pre-charge circuit housing assembly 300 along the third direction Z.

[0026] As Figure 2As shown, the driving mechanism includes a control board 460, an operating mechanism 410, a main circuit operating transmission unit 420, a main circuit tripping device 430, a pre-charge circuit operating transmission unit 440, and a pre-charge circuit tripping device 450 arranged from top to bottom along the third direction Z, the main circuit switch mechanism includes a main circuit free tripping mechanism 510 and a main circuit on-off device 520, the pre-charge circuit switch mechanism includes a pre-charge circuit free tripping mechanism 610 and a pre-charge circuit on-off device 620, the main circuit free tripping mechanism 510 and the main circuit on-off device 520, the pre-charge circuit free tripping mechanism 610 and the pre-charge circuit on-off device 620 are distributed along the first direction X, the main circuit operating transmission unit 420 and the main circuit tripping device 430 are located on one side of the main circuit free tripping mechanism 510 along the third direction Z, and the pre-charge circuit operating transmission unit 440 and the pre-charge circuit tripping device 450 are located on one side of the pre-charge circuit free tripping mechanism 610 along the third direction Z.

[0027] Further, the main circuit on-off device 520 has a moving assembly with a central axis arranged along the first direction X, the main circuit on-off device 520 is provided with two groups of main circuit on-off devices 520 arranged side by side along the first direction X, the pre-charge circuit on-off device 620 has a moving assembly with a central axis arranged along the first direction X, and the pre-charge circuit on-off device 620 is provided with two groups of pre-charge circuit on-off devices 620 arranged side by side along the third direction Z. Further, the two groups of main circuit on-off devices 520 are arranged between the main circuit free tripping mechanism 510 and the pre-charge circuit free tripping mechanism 610, and the two groups of pre-charge circuit on-off devices 620 are arranged on the side of the pre-charge circuit free tripping mechanism 610 away from the main circuit switch mechanism.

[0028] The cooperation structure of the driving mechanism housing assembly 100 and the driving mechanism is as shown in Figure 3 As shown, the driving mechanism housing assembly 100 includes a driving mechanism upper cover 110, a driving mechanism intermediate partition plate 120, and a driving mechanism bottom cover 130, the driving mechanism upper cover 110 and the driving mechanism intermediate partition plate 120 are connected to form a driving upper chamber, the driving mechanism intermediate partition plate 120 and the driving mechanism bottom cover 130 are connected to form a driving lower chamber, the driving mechanism includes the operating mechanism 410, the main circuit operating transmission unit 420, the main circuit tripping device 430, the pre-charge circuit operating transmission unit 440, and the pre-charge circuit tripping device 450, the operating mechanism 410 is fixed above the driving mechanism intermediate partition plate 120, the driving mechanism upper cover 110 covers the operating mechanism 410, and the main circuit operating transmission unit 420, the main circuit tripping device 430, the pre-charge circuit operating transmission unit 440, and the pre-charge circuit tripping device 450 are fixed in the driving lower chamber. At the same time, the control board 460 for executing the intelligent control system of switch instructions is fixed above the operating mechanism 410.

[0029] Wherein, as shown in Figure 4 The operation mechanism 410 includes a fixed support, a driving motor 412, a first motor output wheel, a second motor output wheel, a motor driving wheel 415, a main circuit driving shaft 416, a main circuit driving sliding assembly 417, a pre-charging circuit driving shaft 418, and a pre-charging circuit driving sliding assembly 419. The fixed support includes a first support plate 411a, a second support plate 411b, a third support plate 411c, a fourth support plate 411d, which are sequentially and spaced apart along the third direction Z, and connecting columns connected between the support plates. The driving motor 412 is fixed through the second support plate 411b, the third support plate 411c, and the fourth support plate 411d, and is provided with an output shaft extending to a position between the first support plate 411a and the second support plate 411b. The first motor output wheel and the second motor output wheel are arranged between the first support plate 411a and the second support plate 411b, and are in synchronous rotation through a first gear transmission set. The first motor output wheel is sleeved outside the output shaft of the driving motor 412 and is directly driven to rotate by the driving motor 412. The first support plate 411a and the second support plate 411b form a variable speed adjustment transmission gear cavity of the driving motor 412 output.

[0030] The central shafts of the main circuit driving shaft 416 and the pre-charging circuit driving shaft 418 are arranged along the third direction Z and fixed through the first support plate 411a, the second support plate 411b, and the third support plate 411c. The main circuit driving shaft 416 and the pre-charging circuit driving shaft 418 are located on both sides of the second motor output wheel and are respectively driven by the second gear transmission set and the third gear transmission set. The second gear transmission set and the third gear transmission set are fixed between the second support plate 411b and the third support plate 411c. Specifically, the second motor output wheel between the first support plate 411a and the second support plate 411b and the motor driving wheel 415 between the second support plate 411b and the third support plate 411c are coaxially arranged and synchronously rotate, as shown in Figure 5 The outer periphery of the main circuit driving shaft 416 and the pre-charging circuit driving shaft 418 is respectively sleeved with the main circuit driving wheel 416a and the pre-charging circuit driving wheel 418a between the second support plate 411b and the third support plate 411c. The main circuit driving wheel 416a and the pre-charging circuit driving wheel 418a are located on both sides of the motor driving wheel 415 and are in synchronous rotation with the motor driving wheel 415.

[0031] As shown in Figure 6As shown, the main circuit driving shaft 416 and the main circuit driving wheel 416a are matched through the first one-way clutch matching structure, that is, when the main circuit driving wheel 416a rotates in one direction, the two are in engagement and can drive the main circuit driving shaft 416 to rotate, and when the main circuit driving wheel 416a rotates in the opposite direction, the two are disengaged and cannot drive the main circuit driving shaft 416 to rotate. At the same time, the pre-charging circuit driving shaft 418 and the pre-charging circuit driving wheel 418a are matched through the second one-way clutch matching structure, that is, when the pre-charging circuit driving wheel 418a rotates in one direction, the two are in engagement and can drive the pre-charging circuit driving shaft 418 to rotate, and when the pre-charging circuit driving wheel 418a rotates in the opposite direction, the two are disengaged and cannot drive the pre-charging circuit driving shaft 418 to rotate. Moreover, the directions of engagement and disengagement of the first one-way clutch matching structure and the second one-way clutch matching structure are opposite to each other, so that when the motor driving wheel 415 rotates in the first rotation direction, the main circuit driving shaft 416 can be driven to rotate and the pre-charging circuit driving shaft 418 cannot be driven to rotate, and when the motor driving wheel 415 rotates in the second rotation direction opposite to the first rotation direction, the pre-charging circuit driving shaft 418 can be driven to rotate and the main circuit driving shaft 416 cannot be driven to rotate. Through the above structural arrangement, the rotation of the main circuit driving shaft 416 and the pre-charging circuit driving shaft 418 is respectively controlled by the forward rotation and the reverse rotation of one driving motor.

[0032] The first matching groove 416b is provided on the outer periphery of the center hole of the main circuit driving wheel 416a, and the inner wall of the first matching groove 416b is respectively provided with a first joint surface 416c and a first separation surface 416d at both ends. The first installation groove 416e is radially provided on the outer periphery of the main circuit driving shaft 416, and the first installation groove 416e is provided with a first ball 416f and a first elastic member 416g. The first elastic member 416g forms an outward thrust on the first ball 416f, so that the first ball 416f is kept in contact with the circumferential wall of the center hole of the main circuit driving wheel 416a. When the first ball 416f is in the first matching groove 416b, the main circuit driving wheel 416a rotates clockwise, and when the first ball 416f is matched with the first joint surface 416c, the main circuit driving shaft 416 rotates clockwise with the main circuit driving wheel 416a. When the main circuit driving wheel 416a rotates counterclockwise, the first separation surface 416d forms a radial inward thrust on the first ball 416f during rotation, so that the main circuit driving shaft 416 cannot rotate clockwise with the main circuit driving wheel 416a. The first one-way clutch matching structure and the second one-way clutch matching structure are the same structure, that is, the second matching groove 418b, the second joint surface 418c and the second separation surface 418d are also provided in the pre-charging circuit driving wheel 418a, the second installation groove 418e is radially provided on the outer periphery of the pre-charging circuit driving shaft 418, and the second installation groove 418e is provided with a second ball 418f and a second elastic member 418g. However, the relative directions of the second joint surface 418c and the second separation surface 418d are opposite to those of the first joint surface 416c and the first separation surface 416d.

[0033] As shown in Figure 8 The main circuit switch housing assembly 200 is sequentially provided with a first transmission box body 210 and a main circuit on-off box body 220 along a first direction X, and the main circuit switch mechanism includes a main circuit free trip mechanism 510 located in the first transmission box body 210 and a main circuit on-off device 520 located in the main circuit on-off box body 220. The first transmission box body 210 is provided with a first transmission through hole 213 opened along a second direction Y near one side of the driving mechanism housing assembly 100.

[0034] The main circuit free trip mechanism 510 includes a first multi-link mechanism with an energy storage member, which includes a first arc-shaped motion input end 511 and a first rotary motion output end. The rotation center axis of the first arc-shaped motion input end 511 and the rotation center axis of the first rotary motion output end are both arranged along the first direction X. The first arc-shaped motion input end is matched with the driving mechanism in the driving mechanism housing assembly 100 through the first transmission through hole 213.

[0035] The first multi-link mechanism of the energy storage member includes a first crank, an upper link, a lower link, an output shaft, a first jumper, a first lock piece 512, and a first energy storage spring. The first crank is hingedly fixed and has a first arc-shaped motion input end 511. The first lock piece 512 has a locking position for forming a buckling action on the first jumper to store energy of the first energy storage spring and an unlocking position for releasing the buckling action on the first jumper to release energy of the first energy storage spring. In the unlocking state, the first energy storage spring drives the first multi-link mechanism of the energy storage member to perform a tripping and braking action. Specifically, the cooperation structure of the first crank, the upper link, the lower link, the output shaft, the jumper, the first lock piece 512, and the first energy storage spring is described in the applicant's prior application CN202422239960.5, which will not be described in detail here.

[0036] The main circuit operation transmission unit 420 and the main circuit tripper 430 are respectively cooperated with the first arc-shaped motion input end 511 and the first lock piece 512 through the first transmission through hole 213. Specifically, as shown in Figure 7 The main circuit operation transmission unit 420 includes a first slider 421 and a first guide piece 422 for limiting linear sliding of the first slider 421. The first slider 421 moves linearly along the second direction Y on the first guide piece 422, and the first slider 421 is inserted and cooperated with the first arc-shaped motion input end 511, so as to drive the first arc-shaped motion input end 511 to move in an arc shape perpendicular to the plane of the first direction X. The main circuit tripper 430 includes a first electromagnetic push block 431, which cooperates with the first lock piece 512. When the main circuit tripper 430 receives a signal, the first electromagnetic push block 431 moves linearly along the second direction Y to move the first lock piece 512 from the locking position to the unlocking position.

[0037] As Figure 7As shown, the main circuit operation transmission unit 420, the main circuit tripping device 430 and the main circuit drive shaft 416 are in transmission cooperation through the main circuit drive sliding assembly 417. Specifically, the main circuit drive sliding assembly 417 comprises a second sliding block 417a and a second guide rail 417b for limiting linear sliding of the second sliding block 417a. The lower end of the main circuit drive shaft 416 is connected with a first rotating arm 416i which rotates synchronously. The second sliding block 417a is provided with a second sliding groove 417c arranged along the first direction X. The outer end of the first rotating arm 416i is provided with a transmission wheel which extends into the second sliding groove 417c. The main circuit drive shaft 416 rotates to drive the first sliding block 421 to slide along the first direction X. The second sliding block 417a and the first sliding block 421 are in linkage cooperation. Meanwhile, the first electromagnetic push block 431 is provided with a first reset push rod 431a which extends to one side of the second sliding block 417a. The first reset push rod 431a is used to drive the main circuit drive shaft 416 to perform the closing action by the operation mechanism 410 to reset the main circuit tripping device 430 and to re-close and close the main circuit free tripping mechanism 510.

[0038] As shown in Figure 10 , Figure 11 , the main circuit on-off box 220 comprises a first side main circuit cover 221, a middle main circuit shell 222 and a second side main circuit cover 223. The first side main circuit cover 221, the middle main circuit shell 222 and the second side main circuit cover 223 are sequentially connected along the first direction X to form two mutually separated accommodating cavities. The main circuit on-off device 520 is provided with two groups and is located in the two accommodating cavities respectively. That is, the two groups of main circuit on-off devices 520 are arranged adjacent and side by side along the first direction X.

[0039] As shown in Figure 12 , each group of main circuit on-off devices 520 comprises a main circuit movable contact assembly 521, a first main circuit static contact 522, a second main circuit static contact 523 and two groups of main circuit arc-extinguishing chambers 524. The main circuit movable contact assemblies 521 of the two groups of main circuit on-off devices 520 are coaxially inserted and linked in cooperation and the axial direction is arranged along the first direction X. The main circuit movable contact assembly 521 close to the first transmission box 210 is in transmission cooperation with the first rotary motion output end of the first multi-link mechanism with energy storage member through the first transmission assembly 530. The rotary motion of the first rotary motion output end drives the rotation of the main circuit movable contact assembly 521.

[0040] Specifically, the first transmission assembly 530 includes a first transmission gear and a second transmission gear, which are arranged along the first direction X and mesh with each other, the first transmission gear is coaxially arranged with the first rotary motion output end and the two are inserted and fitted to form synchronous rotation, and the second transmission gear is coaxially arranged with the main circuit movable contact assembly 521 and the two are inserted and fitted to form synchronous rotation. The first transmission gear is arranged away from the driving mechanism relative to the second transmission gear.

[0041] Further, as shown in Figure 9 The first transmission box 210 includes a first transmission housing 211 and a second transmission housing 212, an inner wall of the first transmission housing 211 is provided with a first mounting groove for mounting the first transmission assembly 530, the first transmission assembly 530 is mounted in the first mounting groove of the first transmission assembly 530, and a first mechanism cover plate 214 is arranged, the first mechanism cover plate 214 is detachably connected with the first transmission housing 211 to close the first mounting groove, so that the first transmission assembly 530 is fixed in the first mounting groove.

[0042] The main circuit closing detection device is fixed in the first transmission box 210, which is used to detect the closing position of the main circuit on-off device 520, and outputs a main circuit closing signal when the main circuit on-off device 520 is closed in place. Specifically, the first transmission housing 211 forms a second mounting groove on one side of the first mounting groove, which is shaped to fit the main circuit closing detection device, the main circuit closing detection device is fixed in the second mounting groove and is provided with a second mechanism cover plate 215, the second mechanism cover plate 215 is detachably connected with the first transmission housing 211 to close the second mounting groove, so that the main circuit closing detection device is fixed in the second mounting groove.

[0043] As shown in Figure 12 Among a group of main circuit on-off devices 520, the main circuit movable contact assembly 521 is arranged in the central region, the first main circuit static contact 522, a group of main circuit arc extinguishing chambers 524, the second main circuit static contact 523, and another group of main circuit arc extinguishing chambers 524 are distributed in sequence along the circumference of the main circuit movable contact assembly 521, the contact part of the first main circuit static contact 522 and the contact part of the second main circuit static contact 523 are located on the opposite side of the main circuit movable contact assembly 521 relative to the second direction Y, and the two groups of main circuit arc extinguishing chambers 524 are located on the opposite side of the main circuit movable contact assembly 521 relative to the third direction Z. As shown in Figure 13(a) as shown, the first main circuit static contact 522 comprises a first static contact and a first conductive plate 525, the first conductive plate 525 comprises a first connecting part 525a and a first wiring part 525b at two ends respectively and a first extension part 525c connected between the first connecting part 525a and the first wiring part 525b, the first connecting part 525a is fixedly connected with the first static contact, and the first wiring part 525b is located outside the main circuit on-off box body 220 for wiring. As Figure 13 (b) as shown, the second main circuit static contact 523 comprises a second static contact and a second conductive plate 526, the second conductive plate 526 comprises a second connecting part 526a and a second wiring part 526b at two ends respectively and a second extension part 526c connected between the second connecting part 526a and the second wiring part 526b, the second connecting part 526a is fixedly connected with the second static contact, and the second wiring part 526b is located outside the main circuit on-off box body 220 for wiring.

[0044] Further, the plane where the first connecting part 525a is located is perpendicular to the plane where the first extension part 525c is located, the first extension part 525c is located at one side of the main circuit arc-extinguishing chamber 524 along the first direction X, and extends from the middle part of the main circuit on-off box body 220 along the third direction Z to the outside of the main circuit on-off box body 220 away from the drive mechanism shell assembly 100 through the space at one side of the main circuit arc-extinguishing chamber 524 along the first direction X. The plane where the second connecting part 526a is located is perpendicular to the plane where the second extension part 526c is located, the second extension part 526c is located at two sides of the main circuit arc-extinguishing chamber 524 along the second direction X, and extends from the middle part of the main circuit on-off box body 220 along the third direction Z to the outside of the main circuit on-off box body 220 away from the drive mechanism shell assembly 100 through the space at two sides of the main circuit arc-extinguishing chamber 524 along the second direction X.

[0045] Further, the plane where the first wiring part 525b of the first main circuit static contact 522 is located is perpendicular to the plane where the first extension part 525c is located and adheres to the outer side wall of the main circuit on-off box body 220, the plane where the second wiring part 526b of the second main circuit static contact 523 is located is parallel or coincides with the plane where the second extension part 526c is located, and extends outward from the outer side wall of the main circuit on-off box body 220, so that the extension direction of the wire connected by the first wiring part 525b and the extension direction of the wire connected by the second wiring part 526b are located at different heights.

[0046] Further, the positions of the first main circuit static contact 522 and the second main circuit static contact 523 of the two groups of main circuit on-off devices 520 are different, and the wiring faces of the second wiring parts 526b of the two groups of main circuit on-off devices 520 are arranged opposite to each other. As Figure 14As shown, when wiring, the first wiring part 525b of the first main circuit static contact 522 is connected with the first wire L1 and the second wiring part 526b of the second main circuit static contact 523 is connected with the third wire L3, which are located at the same side and different heights, and the two wires extend to the left direction shown in the figure at the same time. The second wiring part 526b of the first main circuit static contact 522 is connected with the second wire L2 and the first wiring part 525b of the second main circuit static contact 523 is connected with the fourth wire L4, which are located at the same side and different heights, and the two wires extend to the right direction shown in the figure at the same time. When wiring, the first wire L1 and the third wire L3 are connected with the battery end or the load end at the same time, and the second wire L2 and the fourth wire L4 are connected with the battery end or the load end at the same time.

[0047] Further, the first extension part 525c and the second extension part 526c are respectively covered with an insulation layer for separating the free arc discharged from the main circuit arc-extinguishing chamber 524. Specifically, the insulation layer can be formed by glue injection.

[0048] Further, as shown, Figure 8 The first wiring part 525b and the second wiring part 526b of the two groups of main circuit on-off devices 520 are provided with the first insulation partition plate 224 and the second insulation partition plate 225, which are cross-distributed, and the first wiring part 525b and the second wiring part 526b of the two groups of main circuit on-off devices 520 are separated from each other to increase the creepage distance. The first insulation partition plate 224 is arranged along the second direction Y and connected with the main circuit on-off box body 220 as a whole, which is used for separating the wiring structure of the two groups of main circuit on-off devices 520, and also used for supporting the wiring height of the second wire L2 and the third wire L3. The second insulation partition plate 225 is arranged along the first direction X and connected with the main circuit on-off box body 220 as a whole, which is used for separating the first wiring part 525b and the second wiring part 526b in the main circuit on-off device 520, as shown, Figure 10 The main circuit on-off box body 220 is provided with the insulation partition plate insertion slot 2251 arranged along the first direction X, and the second insulation partition plate 225 is inserted and matched with the insulation partition plate insertion slot 2251.

[0049] As shown, Figure 15 The pre-charging circuit shell assembly 300 is sequentially provided with the second transmission box body 310 and the pre-charging circuit on-off box body 320 along the first direction X, the pre-charging circuit switch mechanism includes the pre-charging circuit free trip mechanism 610 located in the second transmission box body 310 and the pre-charging circuit on-off device 620 located in the pre-charging circuit on-off box body 320, and the second transmission box body 310 is provided with the second transmission through hole 313 arranged along the second direction Y near one side of the drive mechanism shell assembly 100.

[0050] As shown, Figure 16As shown, the pre-charge circuit free release mechanism 610 includes a second multi-link mechanism with energy storage, which includes a second arc-shaped motion input end 611 and a second rotary motion output end, and the rotation center axis of the second arc-shaped motion input end 611 and the rotation center axis of the second rotary motion output end are arranged along the first direction X; the second arc-shaped motion input end 611 is matched with the driving mechanism in the driving mechanism housing assembly 100 through the second transmission through hole 313.

[0051] The second multi-link mechanism with energy storage includes a second toggle, an upper link, a lower link, an output shaft, a second jump buckle, a second lock buckle 612, and a second energy storage spring. The second toggle is hingedly fixed and is provided with the second arc-shaped motion input end 611. The second lock buckle 612 has a locking position for forming a buckling action on the second jump buckle to store energy of the second energy storage spring and an unlocking position for releasing the buckling action on the jump buckle to release energy of the second energy storage spring, and in the unlocking state, the second energy storage spring releases energy to drive the tripping and opening actions. Specifically, the cooperation structure of the second toggle, the upper link, the lower link, the output shaft, the second jump buckle, the second lock buckle 612, and the second energy storage spring is described in the prior application CN202422239960.5 of the applicant, which will not be described in detail here.

[0052] The pre-charge circuit operation transmission unit 440 and the pre-charge circuit release 450 are respectively matched with the second arc-shaped motion input end 611 and the second lock buckle 612 through the second transmission through hole 313. Specifically, as shown in Figure 7 As shown, the pre-charge circuit operation transmission unit 440 includes a third sliding block 441 and a third guide member 442 for limiting the linear sliding of the third sliding block 441, and the third sliding block 441 moves linearly along the second direction Y on the third guide member 442. The third sliding block 441 is inserted and matched with the second arc-shaped motion input end 611, so as to drive the second arc-shaped motion input end 611 to move in an arc-shaped manner perpendicular to the plane of the first direction X. The pre-charge circuit release 450 includes a second electromagnetic push block 451, which is matched with the second lock buckle 612, and when the pre-charge circuit release 450 receives a signal, the second electromagnetic push block 451 moves the second lock buckle 612 from the locking position to the unlocking position. The pre-charge circuit operation transmission unit 440, the pre-charge circuit release 450, and the pre-charge circuit driving shaft 418 are transmission matched through the pre-charge circuit driving sliding assembly 419. Specifically, as shown in Figure 7As shown, the pre-charging circuit driving sliding assembly 419 comprises a fourth sliding block 419a and a fourth guide rail 419b forming linear sliding limit for the fourth sliding block 419a, and the lower end of the pre-charging circuit driving shaft 418 is connected with a second rotating arm 418i rotating synchronously, the fourth sliding block 419a is provided with a fourth sliding groove 419c arranged along the first direction X, and the outer end of the second rotating arm 418i is provided with a transmission wheel extending into the fourth sliding groove 419c, and the pre-charging circuit driving shaft 418 rotates to drive the fourth sliding block 419a to slide along the first direction X. The fourth sliding block 419a and the third sliding block 441 are linked and matched, and at the same time, the second electromagnetic push block 451 is provided with a second reset push rod 451a extending to one side of the fourth sliding block 419a, for driving the pre-charging circuit driving shaft 418 to perform the closing action through the operating mechanism 410 to reset the pre-charging circuit tripping device 450 and re-close and close the pre-charging circuit free tripping mechanism 610.

[0053] As shown in Figure 16 , Figure 17 , the pre-charging circuit on-off box 320 comprises a first side pre-charging circuit cover 321 and a second side pre-charging circuit cover 322, and the first side pre-charging circuit cover 321 and the second side pre-charging circuit cover 322 are connected to form two accommodating cavities arranged along the third direction Z and separated from each other, for accommodating two groups of pre-charging circuit on-off devices 620, i.e. the two groups of pre-charging circuit on-off devices 620 are arranged along the third direction Z. The second transmission box 310 is connected to one side of the second side pre-charging circuit cover 322. Each group of pre-charging circuit on-off devices 620 comprises a pre-charging circuit movable contact assembly 621, two groups of pre-charging circuit static contacts 622 and two groups of pre-charging circuit arc extinguishing chambers 623, the axes of the pre-charging circuit movable contact assemblies 621 of the two groups of pre-charging circuit on-off devices 620 are arranged in parallel and along the first direction X, and the pre-charging circuit movable contact assemblies 621 of the two groups of pre-charging circuit on-off devices 620 are in transmission cooperation with the second rotary motion output end through the second transmission assembly 630, so that the rotary motion of the second rotary motion output end synchronously drives the rotation of the pre-charging circuit movable contact assemblies 621 of the two groups of pre-charging circuit on-off devices 620.

[0054] Specifically, the second transmission assembly 630 includes a third transmission gear, a fourth transmission gear, and two transmission racks, the third transmission gear and the fourth transmission gear are separated by a certain distance along the first direction X, the two transmission racks are connected to the two sides of the third transmission gear and the fourth transmission gear respectively and are in mesh with the third transmission gear and the fourth transmission gear, the transmission racks are limited in the second transmission box 310 so that they can only slide linearly along the third direction Z, the third transmission gear and the fourth transmission gear are synchronously rotated through the two transmission racks, the third transmission gear is coaxially arranged with the second rotary motion output end and the two are inserted and fitted to form synchronous rotation, and the third transmission gear and the fourth transmission gear are coaxially arranged with the two groups of pre-charging circuit movable contact assemblies 621 respectively and are inserted and fitted to form synchronous rotation.

[0055] Further, the second transmission box 310 includes a third transmission housing 311 and a fourth transmission housing 312, the inner wall of the third transmission housing 311 is provided with a third mounting groove for mounting the second transmission assembly 630, the second transmission assembly 630 is mounted in the third mounting groove of the second transmission assembly 630, and a third mechanism cover plate 314 is arranged, the third mechanism cover plate 314 is detachably connected with the third transmission housing 311 to close the third mounting groove, so that the second transmission assembly 630 is fixed in the third mounting groove.

[0056] The second transmission box 310 is fixed with a pre-charging circuit closing detection device, the pre-charging circuit closing detection device is used for detecting the closing in place of the pre-charging circuit on-off device 620, when the pre-charging circuit on-off device 620 is closed in place, the pre-charging circuit closing detection device outputs a pre-charging circuit closing signal. Specifically, the pre-charging circuit closing detection device is a micro switch, which cooperates with the end of the corresponding closing position of one transmission rack, when the transmission rack slides to the closing position, the micro switch is triggered. Specifically, the third transmission housing 311 forms a fourth mounting groove on one side of the third mounting groove, which is suitable for the shape of the pre-charging circuit closing detection device, the pre-charging circuit closing detection device is fixed in the fourth mounting groove and is provided with a fourth mechanism cover plate 315, the fourth mechanism cover plate 315 is detachably connected with the third transmission housing 311 to close the fourth mounting groove, so that the second transmission assembly 630 is fixed in the fourth mounting groove.

[0057] As shown in Figure 17 The pre-charging circuit on-off device 620, the pre-charging circuit movable contact assembly 621 is arranged in the central region, the contact parts of the contact parts of the two groups of pre-charging circuit static contacts 622 are located on the opposite side of the pre-charging circuit movable contact assembly 621 relative to the second direction Y, and the two groups of pre-charging circuit arc extinguishing chambers 623 are located on the opposite side of the pre-charging circuit movable contact assembly 621 relative to the third direction Z.

[0058] As shown in Figure 18As shown, the pre-charge circuit static contact 622 comprises a third static contact 622a and a third conductive plate 622b, the third conductive plate 622b comprises a third connecting portion 622c and a third wiring portion 622d at two ends respectively and a third extending portion 622e connected between the third connecting portion 622c and the third wiring portion 622d, the third connecting portion 622c is fixedly connected with the third static contact 622a, and the third wiring portion 622d is located outside the pre-charge circuit on-off box body 320 for wiring. The plane where the third connecting portion 622c is located is perpendicular to the plane where the third extending portion 622e is located, and directly extends from the pre-charge circuit on-off box body 320 along the first direction X away from the side wall of the second transmission box body 310, so that the third wiring portion 622d is wired outside the side wall of the pre-charge circuit on-off box body 320 along the first direction X away from the second transmission box body 310. Specifically, as shown in Figure 19 As shown, the first side pre-charge circuit cover body 321 is provided with a through hole 341 through which the third extending portion 622e passes, and a fourth protrusion 340 is provided outside the through hole 341, and the fourth protrusion 340 is provided with a matching groove 342 matched with the shape of the third wiring portion 622d.

[0059] Further, as shown in Figure 1 As shown, a connecting plate 800 is provided for connecting the driving mechanism shell assembly 100, the main circuit switch shell assembly 200 and the pre-charge circuit shell assembly 300. Specifically, as shown in Figure 8 As shown, the main circuit switch shell assembly 200 is provided with a first connecting sliding groove 230 arranged along the first direction X at the upper end, and the driving mechanism shell assembly 100 is provided with a second connecting sliding groove 110 arranged along the first direction X at the lower end. Figure 15As shown, the upper end of the pre-charge circuit housing assembly 300 is provided with a second connecting chute 330, and the first connecting chute 230 and the second connecting chute 330 are both open on the side in contact with each other, and the two form a limiting connection groove that is suitable for the shape of the connecting plate 800. A connecting piece is used to connect the main circuit switch housing assembly 200 and the pre-charge circuit housing assembly 300, so that the relative position of the two in the first direction X is fixed. Specifically, the connecting piece can be a long bolt. The middle part of the connecting plate 800 is provided with a plurality of connecting holes, and the driving mechanism bottom cover 130 is provided with a plurality of connecting holes corresponding thereto. The connecting plate 800 is connected with the driving mechanism bottom cover 130 through threaded fasteners from one side of the driving mechanism bottom cover 130. After the driving mechanism bottom cover 130 is assembled with the main circuit switch housing assembly 200 and the pre-charge circuit housing assembly 300 through the connecting plate 800, the main circuit operation transmission unit 420, the main circuit tripper 430, the pre-charge circuit operation transmission unit 440, and the pre-charge circuit tripper 450 are installed on the driving mechanism bottom cover 130. Then, the driving mechanism middle partition plate 120, the operation mechanism 410, the control plate 460, and the driving mechanism upper cover 110 are assembled in turn. Through the above structure, the connection between the driving mechanism housing assembly 100, the main circuit switch housing assembly 200, and the pre-charge circuit housing assembly 300 is stable and not easy to be mistakenly disassembled. The driving mechanism upper cover 110, the driving mechanism middle partition plate 120, and the driving mechanism bottom cover 130 can be connected through a bolt detachable connection structure.

[0060] The main circuit switch housing assembly 200 and the pre-charge circuit housing assembly 300 have the same width in the second direction Y and the same length in the third direction Z. The driving mechanism housing assembly 100 has the same width in the second direction Y as the main circuit switch housing assembly 200 and the pre-charge circuit housing assembly 300, and the shell structure after the connection of the main circuit switch housing assembly 200 and the pre-charge circuit housing assembly 300 has the same thickness in the first direction X. After the driving mechanism housing assembly 100, the main circuit switch housing assembly 200, and the pre-charge circuit housing assembly 300 are connected, as shown, a cuboid structure with the same shape is formed. Figure 20

[0061] Further, the driving mechanism housing assembly 100 is connected with a first fixed support 710 on the installation side; and the main circuit switch housing assembly 200 and the pre-charge circuit housing assembly 300 connected therewith are connected with a second fixed support 720 on the installation side.

[0062] The first fixed support 710 and the second fixed support 720 have the same shape, as shown. Figure 21 ​As shown, both are provided with a connecting cross beam 711, two opposite parallel first side plates 712 provided at both ends of the connecting cross beam 711, and two second side plates 713 provided at both ends of the connecting cross beam 711 and extending outward, the two first side plates 712 are used to be connected to or form the outer side walls of two opposite sides of the drive mechanism housing assembly 100, the main circuit switch housing assembly 200, and the pre-charging circuit housing assembly 300, specifically connected by bolt members, and the two second side plates 713 are both provided with a U-shaped connecting through slot for fixed installation of the fuse switch.

Claims

1. A compact fusion switch, characterized by, The drive mechanism, the main circuit switch mechanism and the pre-charge circuit switch mechanism are arranged adjacently along the first direction X; The main circuit switch mechanism comprises two groups of main circuit on-off devices, and the main circuit on-off devices have moving components with central axes arranged along the first direction X, and the two groups of main circuit on-off devices are arranged adjacently side by side along the first direction X; The pre-charge circuit switch mechanism comprises two groups of pre-charge circuit on-off devices, and the pre-charge circuit on-off devices have moving components with central axes arranged along the first direction X, and the two groups of pre-charge circuit on-off devices are arranged adjacently along the third direction Z; The drive mechanism is in transmission cooperation with the moving components of the main circuit on-off devices and the moving components of the pre-charge circuit on-off devices.

2. The compact fusion switch according to claim 1, wherein The main circuit switch mechanism comprises a main circuit free trip mechanism, and the main circuit free trip mechanism is located on one side of the two groups of main circuit on-off devices along the first direction X; The pre-charge circuit switch mechanism comprises a pre-charge circuit free trip mechanism, and the pre-charge circuit free trip mechanism is located on one side of the two groups of pre-charge circuit on-off devices along the first direction X; The drive mechanism is located on one side of the main circuit switch mechanism and the pre-charge circuit switch mechanism arranged adjacently along the first direction X along the third direction Z perpendicular to the first direction X, and the drive mechanism comprises an operating mechanism, a main circuit operating transmission unit, a main circuit tripper, a pre-charge circuit operating transmission unit and a pre-charge circuit tripper; The main circuit operating transmission unit and the main circuit tripper are located on one side of the main circuit free trip mechanism along the third direction Z; The pre-charge circuit operating transmission unit and the pre-charge circuit tripper are located on one side of the pre-charge circuit free trip mechanism along the third direction Z; The operating mechanism is located on one side of the main circuit operating transmission unit, the main circuit tripper, the pre-charge circuit operating transmission unit and the pre-charge circuit tripper away from the main circuit switch mechanism and the pre-charge circuit switch mechanism along the third direction Z, and is used for driving the main circuit operating transmission unit and the pre-charge circuit operating transmission unit.

3. The compact fusion switch of claim 2, wherein, The two groups of main circuit on-off devices are arranged between the main circuit free trip mechanism and the pre-charge circuit free trip mechanism, and the two groups of pre-charge circuit on-off devices are arranged on one side of the pre-charge circuit free trip mechanism away from the main circuit switch mechanism.

4. The compact fusion switch according to claim 3, wherein The main circuit free trip mechanism comprises a first arc-shaped motion input end, a first jump locking piece, a first lock locking piece and a first energy storage spring, the first lock locking piece has a locking position for forming a locking cooperation with the first jump locking piece to store energy of the first energy storage spring and an unlocking position for releasing the locking cooperation with the first jump locking piece to release energy of the first energy storage spring, and in the unlocking state, the first energy storage spring releases energy to drive a first multi-link mechanism with an energy storage piece to perform a trip opening action; The main circuit operating transmission unit comprises a first sliding block and a first guide rail piece for limiting linear sliding of the first sliding block, the first sliding block moves linearly on the first guide rail piece along a second direction Y perpendicular to the first direction X and perpendicular to the third direction Z, and the first sliding block is connected with the first arc-shaped motion input end to form transmission cooperation. The main circuit tripping device comprises a first electromagnetic push block matched with the first locking member, which moves linearly along the second direction Y; The pre-charging circuit free tripping mechanism comprises a second arc-shaped motion input end, a second jump locking member, a second locking member, a second energy storage spring, the second locking member has a locking position for forming a locking cooperation with the second jump locking member to store energy of the second energy storage spring and an unlocking position for releasing the locking cooperation with the jump locking member to release energy of the second energy storage spring, in the unlocking state, the second energy storage spring releases energy to drive tripping and opening; The pre-charging circuit operation transmission unit comprises a third sliding block and a third guide member for limiting linear sliding of the third sliding block, the third sliding block moves linearly along the second direction Y on the third guide member, and the third sliding block is connected with the second arc-shaped motion input end to form a match; The pre-charging circuit tripping device comprises a second electromagnetic push block matched with the second locking member, which moves linearly along the second direction Y.

5. The compact fusion switch of claim 4, wherein, The operation mechanism comprises a main circuit driving shaft and a pre-charging circuit driving shaft, and the central axes of the main circuit driving shaft and the pre-charging circuit driving shaft are arranged along the third direction Z; A main circuit driving sliding assembly is arranged between the main circuit operation transmission unit, the main circuit tripping device and the main circuit driving shaft; The main circuit driving sliding assembly comprises a second sliding block and a second guide member for limiting linear sliding of the second sliding block, the lower end of the main circuit driving shaft is connected with a first rotating arm rotating synchronously, the second sliding block is provided with a second sliding groove arranged along the first direction X, the outer end of the first rotating arm is provided with a transmission wheel extending into the second sliding groove, the main circuit driving shaft rotates to drive the first sliding block to slide along the first direction, and the sliding directions of the second sliding block and the first sliding block are the same and the two are linked and matched; A first reset push rod extending to one side of the second sliding block is arranged on the first electromagnetic push block, which is used for resetting the main circuit tripping device by the main circuit driving shaft; A pre-charging circuit driving sliding assembly is arranged between the pre-charging circuit operation transmission unit, the pre-charging circuit tripping device and the pre-charging circuit driving shaft; The pre-charging circuit driving sliding assembly comprises a fourth sliding block and a fourth guide member for limiting linear sliding of the fourth sliding block, the lower end of the pre-charging circuit driving shaft is connected with a second rotating arm rotating synchronously, the fourth sliding block is provided with a fourth sliding groove arranged along the first direction X, the outer end of the second rotating arm is provided with a transmission wheel extending into the fourth sliding groove, the pre-charging circuit driving shaft rotates to drive the third sliding block to slide along the first direction, and the sliding directions of the fourth sliding block and the third sliding block are the same and the two are linked and matched; A second reset push rod extending to one side of the fourth sliding block is arranged on the second electromagnetic push block, which is used for resetting the pre-charging circuit tripping device by the pre-charging circuit driving shaft.

6. The compact fusion switch according to claim 5, wherein The operation mechanism comprises a driving motor and a motor driving wheel, and the driving motor is used for driving the motor driving wheel to rotate forward or reverse; The main circuit driving shaft and the pre-charging circuit driving shaft are respectively sleeved with a main circuit driving wheel and a pre-charging circuit driving wheel, and the main circuit driving wheel and the pre-charging circuit driving wheel are respectively located on two sides of the motor driving wheel and synchronously rotate with the motor driving wheel; The first one-way clutch cooperation structure is arranged between the main circuit driving shaft and the main circuit driving wheel; The second one-way clutch cooperation structure is arranged between the pre-charging circuit driving shaft and the pre-charging circuit driving wheel; Under the action of the first one-way clutch cooperation structure and the second one-way clutch cooperation structure, when the motor driving wheel rotates and drives in a first rotation direction, the main circuit driving shaft remains stationary and synchronously rotates with the motor driving wheel in at least part of a rotation path, and when the motor driving wheel rotates and drives in a second rotation direction, the pre-charging circuit driving shaft remains stationary and synchronously rotates with the motor driving wheel in at least part of a rotation path; The first rotation direction is opposite to the second rotation direction.

7. The compact fusion switch of claim 6, wherein, The main circuit driving wheel, the pre-charging circuit driving wheel and the motor driving wheel are all gear structures, and the main circuit driving wheel and the pre-charging circuit driving wheel are respectively engaged with the motor driving wheel.

8. The compact fusion switch according to any one of claims 1-7, wherein, The switch housing assembly comprises a driving mechanism housing assembly for a driving mechanism, a main circuit switch housing assembly for accommodating a main circuit switch mechanism, and a pre-charging circuit housing assembly for accommodating a pre-charging circuit switch mechanism; The main circuit switch housing assembly is provided with a first transmission through hole on one side close to the driving mechanism housing assembly; The pre-charging circuit housing assembly is provided with a second transmission through hole on one side close to the driving mechanism housing assembly.

9. The compact fusion switch of claim 8, wherein, The main circuit switch housing assembly and the pre-charging circuit housing assembly have the same width along a second direction Y perpendicular to the first direction X and perpendicular to a third direction Z and the same length along the third direction Z, the driving mechanism housing assembly has the same width along the second direction Y as the main circuit switch housing assembly and the pre-charging circuit housing assembly, and the housing structure after the main circuit switch housing assembly and the pre-charging circuit housing assembly are connected has the same thickness along the first direction X.

10. A compact fusion switch according to any one of claims 2-7, characterized in that The switch housing assembly comprises a driving mechanism housing assembly for a driving mechanism, a main circuit switch housing assembly for accommodating a main circuit switch mechanism, and a pre-charging circuit housing assembly for accommodating a pre-charging circuit switch mechanism; The main circuit switch housing assembly is provided with a first transmission through hole on one side close to the driving mechanism housing assembly, and the main circuit operation transmission unit and the main circuit release are matched with the main circuit free release mechanism through the first transmission through hole; The pre-charging circuit housing assembly is provided with a second transmission through hole on one side close to the driving mechanism housing assembly, and the pre-charging circuit operation transmission unit and the pre-charging circuit release are matched with the pre-charging circuit free release mechanism through the second transmission through hole; The drive mechanism housing assembly comprises a drive mechanism upper cover, a drive mechanism middle partition plate and a drive mechanism bottom cover, the drive mechanism upper cover and the drive mechanism middle partition plate are connected to form a drive upper chamber, the drive mechanism middle partition plate and the drive mechanism bottom cover are connected to form a drive lower chamber, the operating mechanism is located in the drive upper chamber, and the main circuit operating transmission unit, the main circuit tripper, the pre-charging circuit operating transmission unit and the pre-charging circuit tripper are fixed to the drive lower chamber. A connecting plate is arranged, a first connecting sliding groove provided along the first direction X is arranged at the upper end of the main circuit switch housing assembly, a second connecting sliding groove is arranged at the upper end of the pre-charging circuit housing assembly, the first connecting sliding groove and the second connecting sliding groove are both open at the side in contact with each other, and the two are combined to form a limiting connection groove which is suitable for the shape of the connecting plate, a connecting piece is arranged for connecting the main circuit switch housing assembly and the pre-charging circuit housing assembly to fix the relative position of the two along the first direction X, a plurality of connecting holes are arranged in the middle of the connecting plate, a plurality of connecting holes are correspondingly arranged on the drive mechanism bottom cover, and the connecting plate and the drive mechanism bottom cover are connected from one side of the drive mechanism bottom cover through a threaded fastener.

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